Changes: SAM: - Add Surface Book 3 GPE LID fix. - Add support for Surface Book 3 performance modes - Add preliminary support for Surface Book 3 HID devices, i.e. keyboard and touchpad. N.b.: There are still known issues regarding device re-initialization when detaching/re-attaching. - Add preliminary support for Surface Book 3 battery/AC. - Bugfix: Initialize power-target in HPS driver on load. - Bugfix: Fix out-of-space handling for SSH requests. Links: - kernel:3d8315773f
- SAM:27e54010b4
7314 lines
195 KiB
Diff
7314 lines
195 KiB
Diff
From c5eaac134e67ec8bebfe7750e90ea68bdb4f3b92 Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Sat, 28 Sep 2019 17:58:17 +0200
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Subject: [PATCH 7/8] ipts
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---
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drivers/gpu/drm/i915/Makefile | 3 +
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drivers/gpu/drm/i915/i915_debugfs.c | 63 +-
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drivers/gpu/drm/i915/i915_drv.c | 9 +-
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drivers/gpu/drm/i915/i915_drv.h | 3 +
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drivers/gpu/drm/i915/i915_gem_context.c | 12 +
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drivers/gpu/drm/i915/i915_irq.c | 7 +-
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drivers/gpu/drm/i915/i915_params.c | 5 +-
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drivers/gpu/drm/i915/i915_params.h | 5 +-
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drivers/gpu/drm/i915/intel_guc.h | 1 +
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drivers/gpu/drm/i915/intel_guc_submission.c | 89 +-
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drivers/gpu/drm/i915/intel_guc_submission.h | 4 +
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drivers/gpu/drm/i915/intel_ipts.c | 650 ++++++++++++
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drivers/gpu/drm/i915/intel_ipts.h | 34 +
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drivers/gpu/drm/i915/intel_lrc.c | 12 +-
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drivers/gpu/drm/i915/intel_lrc.h | 8 +
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drivers/gpu/drm/i915/intel_panel.c | 7 +
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drivers/misc/Kconfig | 1 +
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drivers/misc/Makefile | 1 +
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drivers/misc/ipts/Kconfig | 12 +
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drivers/misc/ipts/Makefile | 19 +
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drivers/misc/ipts/companion.c | 211 ++++
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drivers/misc/ipts/companion.h | 25 +
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drivers/misc/ipts/companion/Kconfig | 8 +
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drivers/misc/ipts/companion/Makefile | 2 +
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drivers/misc/ipts/companion/ipts-surface.c | 157 +++
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drivers/misc/ipts/dbgfs.c | 277 +++++
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drivers/misc/ipts/gfx.c | 180 ++++
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drivers/misc/ipts/gfx.h | 25 +
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drivers/misc/ipts/hid.c | 469 +++++++++
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drivers/misc/ipts/hid.h | 21 +
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drivers/misc/ipts/ipts.c | 62 ++
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drivers/misc/ipts/ipts.h | 172 +++
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drivers/misc/ipts/kernel.c | 1047 +++++++++++++++++++
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drivers/misc/ipts/kernel.h | 17 +
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drivers/misc/ipts/mei-msgs.h | 901 ++++++++++++++++
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drivers/misc/ipts/mei.c | 238 +++++
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drivers/misc/ipts/msg-handler.c | 405 +++++++
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drivers/misc/ipts/msg-handler.h | 28 +
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drivers/misc/ipts/params.c | 42 +
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drivers/misc/ipts/params.h | 25 +
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drivers/misc/ipts/resource.c | 291 ++++++
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drivers/misc/ipts/resource.h | 26 +
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drivers/misc/ipts/sensor-regs.h | 834 +++++++++++++++
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drivers/misc/ipts/state.h | 22 +
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drivers/misc/mei/hw-me-regs.h | 1 +
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drivers/misc/mei/pci-me.c | 1 +
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include/linux/ipts-binary.h | 140 +++
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include/linux/ipts-companion.h | 29 +
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include/linux/ipts-gfx.h | 86 ++
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include/linux/ipts.h | 19 +
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50 files changed, 6684 insertions(+), 22 deletions(-)
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create mode 100644 drivers/gpu/drm/i915/intel_ipts.c
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create mode 100644 drivers/gpu/drm/i915/intel_ipts.h
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create mode 100644 drivers/misc/ipts/Kconfig
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create mode 100644 drivers/misc/ipts/Makefile
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create mode 100644 drivers/misc/ipts/companion.c
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create mode 100644 drivers/misc/ipts/companion.h
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create mode 100644 drivers/misc/ipts/companion/Kconfig
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create mode 100644 drivers/misc/ipts/companion/Makefile
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create mode 100644 drivers/misc/ipts/companion/ipts-surface.c
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create mode 100644 drivers/misc/ipts/dbgfs.c
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create mode 100644 drivers/misc/ipts/gfx.c
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create mode 100644 drivers/misc/ipts/gfx.h
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create mode 100644 drivers/misc/ipts/hid.c
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create mode 100644 drivers/misc/ipts/hid.h
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create mode 100644 drivers/misc/ipts/ipts.c
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create mode 100644 drivers/misc/ipts/ipts.h
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create mode 100644 drivers/misc/ipts/kernel.c
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create mode 100644 drivers/misc/ipts/kernel.h
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create mode 100644 drivers/misc/ipts/mei-msgs.h
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create mode 100644 drivers/misc/ipts/mei.c
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create mode 100644 drivers/misc/ipts/msg-handler.c
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create mode 100644 drivers/misc/ipts/msg-handler.h
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create mode 100644 drivers/misc/ipts/params.c
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create mode 100644 drivers/misc/ipts/params.h
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create mode 100644 drivers/misc/ipts/resource.c
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create mode 100644 drivers/misc/ipts/resource.h
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create mode 100644 drivers/misc/ipts/sensor-regs.h
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create mode 100644 drivers/misc/ipts/state.h
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create mode 100644 include/linux/ipts-binary.h
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create mode 100644 include/linux/ipts-companion.h
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create mode 100644 include/linux/ipts-gfx.h
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create mode 100644 include/linux/ipts.h
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diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
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index 5794f102f9b8f..6ae0e91a213af 100644
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--- a/drivers/gpu/drm/i915/Makefile
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+++ b/drivers/gpu/drm/i915/Makefile
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@@ -155,6 +155,9 @@ i915-y += dvo_ch7017.o \
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vlv_dsi.o \
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vlv_dsi_pll.o
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+# intel precise touch & stylus
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+i915-y += intel_ipts.o
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+
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# Post-mortem debug and GPU hang state capture
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i915-$(CONFIG_DRM_I915_CAPTURE_ERROR) += i915_gpu_error.o
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i915-$(CONFIG_DRM_I915_SELFTEST) += \
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diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
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index e063e98d1e82e..99becb6aed688 100644
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--- a/drivers/gpu/drm/i915/i915_debugfs.c
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+++ b/drivers/gpu/drm/i915/i915_debugfs.c
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@@ -31,6 +31,7 @@
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#include <linux/sched/mm.h>
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#include "intel_drv.h"
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#include "intel_guc_submission.h"
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+#include "intel_ipts.h"
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static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
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{
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@@ -4695,6 +4696,64 @@ static const struct file_operations i915_fifo_underrun_reset_ops = {
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.llseek = default_llseek,
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};
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+static ssize_t
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+i915_ipts_cleanup_write(struct file *filp,
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+ const char __user *ubuf,
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+ size_t cnt, loff_t *ppos)
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+{
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+ struct drm_i915_private *dev_priv = filp->private_data;
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+ struct drm_device *dev = &dev_priv->drm;
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+ int ret;
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+ bool flag;
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+
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+ ret = kstrtobool_from_user(ubuf, cnt, &flag);
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+ if (ret)
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+ return ret;
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+
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+ if (!flag)
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+ return cnt;
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+
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+ ipts_cleanup(dev);
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+
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+ return cnt;
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+}
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+
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+static const struct file_operations i915_ipts_cleanup_ops = {
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+ .owner = THIS_MODULE,
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+ .open = simple_open,
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+ .write = i915_ipts_cleanup_write,
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+ .llseek = default_llseek,
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+};
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+
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+static ssize_t
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+i915_ipts_init_write(struct file *filp,
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+ const char __user *ubuf,
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+ size_t cnt, loff_t *ppos)
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+{
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+ struct drm_i915_private *dev_priv = filp->private_data;
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+ struct drm_device *dev = &dev_priv->drm;
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+ int ret;
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+ bool flag;
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+
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+ ret = kstrtobool_from_user(ubuf, cnt, &flag);
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+ if (ret)
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+ return ret;
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+
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+ if (!flag)
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+ return cnt;
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+
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+ ipts_init(dev);
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+
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+ return cnt;
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+}
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+
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+static const struct file_operations i915_ipts_init_ops = {
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+ .owner = THIS_MODULE,
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+ .open = simple_open,
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+ .write = i915_ipts_init_write,
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+ .llseek = default_llseek,
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+};
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+
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static const struct drm_info_list i915_debugfs_list[] = {
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{"i915_capabilities", i915_capabilities, 0},
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{"i915_gem_objects", i915_gem_object_info, 0},
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@@ -4773,7 +4832,9 @@ static const struct i915_debugfs_files {
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{"i915_hpd_storm_ctl", &i915_hpd_storm_ctl_fops},
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{"i915_ipc_status", &i915_ipc_status_fops},
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{"i915_drrs_ctl", &i915_drrs_ctl_fops},
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- {"i915_edp_psr_debug", &i915_edp_psr_debug_fops}
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+ {"i915_edp_psr_debug", &i915_edp_psr_debug_fops},
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+ {"i915_ipts_cleanup", &i915_ipts_cleanup_ops},
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+ {"i915_ipts_init", &i915_ipts_init_ops},
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};
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int i915_debugfs_register(struct drm_i915_private *dev_priv)
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diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
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index b0d76a7a0946f..81fba8e5ab050 100644
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--- a/drivers/gpu/drm/i915/i915_drv.c
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+++ b/drivers/gpu/drm/i915/i915_drv.c
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@@ -47,11 +47,12 @@
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#include <drm/i915_drm.h>
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#include "i915_drv.h"
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-#include "i915_trace.h"
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#include "i915_pmu.h"
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#include "i915_query.h"
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+#include "i915_trace.h"
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#include "i915_vgpu.h"
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#include "intel_drv.h"
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+#include "intel_ipts.h"
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#include "intel_uc.h"
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static struct drm_driver driver;
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@@ -696,6 +697,9 @@ static int i915_load_modeset_init(struct drm_device *dev)
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/* Only enable hotplug handling once the fbdev is fully set up. */
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intel_hpd_init(dev_priv);
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+ if (INTEL_GEN(dev_priv) >= 9 && i915_modparams.enable_guc && i915_modparams.enable_ipts)
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+ ipts_init(dev);
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+
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return 0;
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cleanup_gem:
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@@ -1438,6 +1442,9 @@ void i915_driver_unload(struct drm_device *dev)
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struct drm_i915_private *dev_priv = to_i915(dev);
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struct pci_dev *pdev = dev_priv->drm.pdev;
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+ if (INTEL_GEN(dev_priv) >= 9 && i915_modparams.enable_guc && i915_modparams.enable_ipts)
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+ ipts_cleanup(dev);
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+
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i915_driver_unregister(dev_priv);
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if (i915_gem_suspend(dev_priv))
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diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
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index db2e9af49ae6f..99bc0c92c4111 100644
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--- a/drivers/gpu/drm/i915/i915_drv.h
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+++ b/drivers/gpu/drm/i915/i915_drv.h
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@@ -3232,6 +3232,9 @@ void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj,
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void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj,
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struct sg_table *pages);
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+struct i915_gem_context *
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+i915_gem_context_create_ipts(struct drm_device *dev);
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+
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static inline struct i915_gem_context *
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__i915_gem_context_lookup_rcu(struct drm_i915_file_private *file_priv, u32 id)
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{
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diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
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index ef383fd429885..89da4ff094312 100644
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--- a/drivers/gpu/drm/i915/i915_gem_context.c
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+++ b/drivers/gpu/drm/i915/i915_gem_context.c
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@@ -472,6 +472,18 @@ static bool needs_preempt_context(struct drm_i915_private *i915)
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return HAS_LOGICAL_RING_PREEMPTION(i915);
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}
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+struct i915_gem_context *i915_gem_context_create_ipts(struct drm_device *dev)
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+{
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+ struct drm_i915_private *dev_priv = to_i915(dev);
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+ struct i915_gem_context *ctx;
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+
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+ BUG_ON(!mutex_is_locked(&dev->struct_mutex));
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+
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+ ctx = i915_gem_create_context(dev_priv, NULL);
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+
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+ return ctx;
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+}
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+
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int i915_gem_contexts_init(struct drm_i915_private *dev_priv)
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{
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struct i915_gem_context *ctx;
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diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
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index b7c3982321369..adf168aed2fe3 100644
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--- a/drivers/gpu/drm/i915/i915_irq.c
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+++ b/drivers/gpu/drm/i915/i915_irq.c
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@@ -36,6 +36,7 @@
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#include "i915_drv.h"
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#include "i915_trace.h"
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#include "intel_drv.h"
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+#include "intel_ipts.h"
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/**
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* DOC: interrupt handling
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@@ -1503,6 +1504,9 @@ gen8_cs_irq_handler(struct intel_engine_cs *engine, u32 iir)
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tasklet |= USES_GUC_SUBMISSION(engine->i915);
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}
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+ if (iir & GT_RENDER_PIPECTL_NOTIFY_INTERRUPT && i915_modparams.enable_ipts)
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+ ipts_notify_complete();
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+
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if (tasklet)
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tasklet_hi_schedule(&engine->execlists.tasklet);
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}
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@@ -4123,7 +4127,8 @@ static void gen8_gt_irq_postinstall(struct drm_i915_private *dev_priv)
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{
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/* These are interrupts we'll toggle with the ring mask register */
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uint32_t gt_interrupts[] = {
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- GT_RENDER_USER_INTERRUPT << GEN8_RCS_IRQ_SHIFT |
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+ GT_RENDER_PIPECTL_NOTIFY_INTERRUPT << GEN8_RCS_IRQ_SHIFT |
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+ GT_RENDER_USER_INTERRUPT << GEN8_RCS_IRQ_SHIFT |
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GT_CONTEXT_SWITCH_INTERRUPT << GEN8_RCS_IRQ_SHIFT |
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GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT |
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GT_CONTEXT_SWITCH_INTERRUPT << GEN8_BCS_IRQ_SHIFT,
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diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
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index 295e981e4a398..84415814c0070 100644
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--- a/drivers/gpu/drm/i915/i915_params.c
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+++ b/drivers/gpu/drm/i915/i915_params.c
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@@ -145,7 +145,10 @@ i915_param_named_unsafe(edp_vswing, int, 0400,
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i915_param_named_unsafe(enable_guc, int, 0400,
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"Enable GuC load for GuC submission and/or HuC load. "
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"Required functionality can be selected using bitmask values. "
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- "(-1=auto, 0=disable [default], 1=GuC submission, 2=HuC load)");
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+ "(-1=auto [default], 0=disable, 1=GuC submission, 2=HuC load)");
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+
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+i915_param_named_unsafe(enable_ipts, int, 0400,
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+ "Enable IPTS Touchscreen and Pen support (default: 1)");
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i915_param_named(guc_log_level, int, 0400,
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"GuC firmware logging level. Requires GuC to be loaded. "
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diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
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index 6c4d4a21474b5..4ab800c3de6d0 100644
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--- a/drivers/gpu/drm/i915/i915_params.h
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+++ b/drivers/gpu/drm/i915/i915_params.h
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@@ -46,7 +46,7 @@ struct drm_printer;
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param(int, disable_power_well, -1) \
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param(int, enable_ips, 1) \
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param(int, invert_brightness, 0) \
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- param(int, enable_guc, 0) \
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+ param(int, enable_guc, -1) \
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param(int, guc_log_level, -1) \
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param(char *, guc_firmware_path, NULL) \
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param(char *, huc_firmware_path, NULL) \
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@@ -68,7 +68,8 @@ struct drm_printer;
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param(bool, nuclear_pageflip, false) \
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param(bool, enable_dp_mst, true) \
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param(bool, enable_dpcd_backlight, false) \
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- param(bool, enable_gvt, false)
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+ param(bool, enable_gvt, false) \
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+ param(int, enable_ipts, 1)
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|
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#define MEMBER(T, member, ...) T member;
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struct i915_params {
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diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h
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index 4121928a495e0..8967376accf30 100644
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--- a/drivers/gpu/drm/i915/intel_guc.h
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+++ b/drivers/gpu/drm/i915/intel_guc.h
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@@ -69,6 +69,7 @@ struct intel_guc {
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|
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struct intel_guc_client *execbuf_client;
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struct intel_guc_client *preempt_client;
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+ struct intel_guc_client *ipts_client;
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|
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struct guc_preempt_work preempt_work[I915_NUM_ENGINES];
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struct workqueue_struct *preempt_wq;
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diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c
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index 4aa5e6463e7b7..da80c5f17feea 100644
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--- a/drivers/gpu/drm/i915/intel_guc_submission.c
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+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
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@@ -88,12 +88,17 @@ static inline struct i915_priolist *to_priolist(struct rb_node *rb)
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|
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static inline bool is_high_priority(struct intel_guc_client *client)
|
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{
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- return (client->priority == GUC_CLIENT_PRIORITY_KMD_HIGH ||
|
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- client->priority == GUC_CLIENT_PRIORITY_HIGH);
|
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+ return (client->priority == GUC_CLIENT_PRIORITY_HIGH);
|
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+}
|
|
+
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+static inline bool is_high_priority_kmd(struct intel_guc_client *client)
|
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+{
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+ return (client->priority == GUC_CLIENT_PRIORITY_KMD_HIGH);
|
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}
|
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|
|
static int reserve_doorbell(struct intel_guc_client *client)
|
|
{
|
|
+ struct drm_i915_private *dev_priv = guc_to_i915(client->guc);
|
|
unsigned long offset;
|
|
unsigned long end;
|
|
u16 id;
|
|
@@ -106,10 +111,14 @@ static int reserve_doorbell(struct intel_guc_client *client)
|
|
* priority contexts, the second half for high-priority ones.
|
|
*/
|
|
offset = 0;
|
|
- end = GUC_NUM_DOORBELLS / 2;
|
|
- if (is_high_priority(client)) {
|
|
- offset = end;
|
|
- end += offset;
|
|
+ if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
|
|
+ end = GUC_NUM_DOORBELLS;
|
|
+ } else {
|
|
+ end = GUC_NUM_DOORBELLS/2;
|
|
+ if (is_high_priority(client)) {
|
|
+ offset = end;
|
|
+ end += offset;
|
|
+ }
|
|
}
|
|
|
|
id = find_next_zero_bit(client->guc->doorbell_bitmap, end, offset);
|
|
@@ -355,9 +364,15 @@ static void guc_stage_desc_init(struct intel_guc *guc,
|
|
desc = __get_stage_desc(client);
|
|
memset(desc, 0, sizeof(*desc));
|
|
|
|
- desc->attribute = GUC_STAGE_DESC_ATTR_ACTIVE |
|
|
- GUC_STAGE_DESC_ATTR_KERNEL;
|
|
- if (is_high_priority(client))
|
|
+ desc->attribute = GUC_STAGE_DESC_ATTR_ACTIVE;
|
|
+ if ((client->priority == GUC_CLIENT_PRIORITY_KMD_NORMAL) ||
|
|
+ (client->priority == GUC_CLIENT_PRIORITY_KMD_HIGH)) {
|
|
+ desc->attribute |= GUC_STAGE_DESC_ATTR_KERNEL;
|
|
+ } else {
|
|
+ desc->attribute |= GUC_STAGE_DESC_ATTR_PCH;
|
|
+ }
|
|
+
|
|
+ if (is_high_priority_kmd(client))
|
|
desc->attribute |= GUC_STAGE_DESC_ATTR_PREEMPT;
|
|
desc->stage_id = client->stage_id;
|
|
desc->priority = client->priority;
|
|
@@ -1204,7 +1219,8 @@ static void guc_interrupts_capture(struct drm_i915_private *dev_priv)
|
|
I915_WRITE(RING_MODE_GEN7(engine), irqs);
|
|
|
|
/* route USER_INTERRUPT to Host, all others are sent to GuC. */
|
|
- irqs = GT_RENDER_USER_INTERRUPT << GEN8_RCS_IRQ_SHIFT |
|
|
+ irqs = (GT_RENDER_USER_INTERRUPT | GT_RENDER_PIPECTL_NOTIFY_INTERRUPT)
|
|
+ << GEN8_RCS_IRQ_SHIFT |
|
|
GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT;
|
|
/* These three registers have the same bit definitions */
|
|
I915_WRITE(GUC_BCS_RCS_IER, ~irqs);
|
|
@@ -1349,6 +1365,59 @@ void intel_guc_submission_disable(struct intel_guc *guc)
|
|
guc_clients_doorbell_fini(guc);
|
|
}
|
|
|
|
+int i915_guc_ipts_submission_enable(struct drm_i915_private *dev_priv,
|
|
+ struct i915_gem_context *ctx)
|
|
+{
|
|
+ struct intel_guc *guc = &dev_priv->guc;
|
|
+ struct intel_guc_client *client;
|
|
+ int err;
|
|
+ int ret;
|
|
+
|
|
+ /* client for execbuf submission */
|
|
+ client = guc_client_alloc(dev_priv,
|
|
+ INTEL_INFO(dev_priv)->ring_mask,
|
|
+ IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) ? GUC_CLIENT_PRIORITY_HIGH : GUC_CLIENT_PRIORITY_NORMAL,
|
|
+ ctx);
|
|
+ if (IS_ERR(client)) {
|
|
+ DRM_ERROR("Failed to create normal GuC client!\n");
|
|
+ return -ENOMEM;
|
|
+ }
|
|
+
|
|
+ guc->ipts_client = client;
|
|
+
|
|
+ err = intel_guc_sample_forcewake(guc);
|
|
+ if (err)
|
|
+ return err;
|
|
+
|
|
+ ret = create_doorbell(guc->ipts_client);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+void i915_guc_ipts_submission_disable(struct drm_i915_private *dev_priv)
|
|
+{
|
|
+ struct intel_guc *guc = &dev_priv->guc;
|
|
+
|
|
+ if (!guc->ipts_client)
|
|
+ return;
|
|
+
|
|
+ destroy_doorbell(guc->ipts_client);
|
|
+ guc_client_free(guc->ipts_client);
|
|
+ guc->ipts_client = NULL;
|
|
+}
|
|
+
|
|
+void i915_guc_ipts_reacquire_doorbell(struct drm_i915_private *dev_priv)
|
|
+{
|
|
+ struct intel_guc *guc = &dev_priv->guc;
|
|
+
|
|
+ int err = __guc_allocate_doorbell(guc, guc->ipts_client->stage_id);
|
|
+
|
|
+ if (err)
|
|
+ DRM_ERROR("Not able to reacquire IPTS doorbell\n");
|
|
+}
|
|
+
|
|
#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
|
|
#include "selftests/intel_guc.c"
|
|
#endif
|
|
diff --git a/drivers/gpu/drm/i915/intel_guc_submission.h b/drivers/gpu/drm/i915/intel_guc_submission.h
|
|
index fb081cefef935..71fc7986585ab 100644
|
|
--- a/drivers/gpu/drm/i915/intel_guc_submission.h
|
|
+++ b/drivers/gpu/drm/i915/intel_guc_submission.h
|
|
@@ -79,5 +79,9 @@ void intel_guc_submission_disable(struct intel_guc *guc);
|
|
void intel_guc_submission_fini(struct intel_guc *guc);
|
|
int intel_guc_preempt_work_create(struct intel_guc *guc);
|
|
void intel_guc_preempt_work_destroy(struct intel_guc *guc);
|
|
+int i915_guc_ipts_submission_enable(struct drm_i915_private *dev_priv,
|
|
+ struct i915_gem_context *ctx);
|
|
+void i915_guc_ipts_submission_disable(struct drm_i915_private *dev_priv);
|
|
+void i915_guc_ipts_reacquire_doorbell(struct drm_i915_private *dev_priv);
|
|
|
|
#endif
|
|
diff --git a/drivers/gpu/drm/i915/intel_ipts.c b/drivers/gpu/drm/i915/intel_ipts.c
|
|
new file mode 100644
|
|
index 0000000000000..c1199074924a0
|
|
--- /dev/null
|
|
+++ b/drivers/gpu/drm/i915/intel_ipts.c
|
|
@@ -0,0 +1,650 @@
|
|
+/*
|
|
+ * Copyright 2016 Intel Corporation
|
|
+ *
|
|
+ * Permission is hereby granted, free of charge, to any person obtaining a
|
|
+ * copy of this software and associated documentation files (the "Software"),
|
|
+ * to deal in the Software without restriction, including without limitation
|
|
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
+ * and/or sell copies of the Software, and to permit persons to whom the
|
|
+ * Software is furnished to do so, subject to the following conditions:
|
|
+ *
|
|
+ * The above copyright notice and this permission notice (including the next
|
|
+ * paragraph) shall be included in all copies or substantial portions of the
|
|
+ * Software.
|
|
+ *
|
|
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
+ * IN THE SOFTWARE.
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <drm/drmP.h>
|
|
+#include <linux/ipts-gfx.h>
|
|
+#include <linux/kernel.h>
|
|
+#include <linux/module.h>
|
|
+#include <linux/types.h>
|
|
+
|
|
+#include "intel_guc_submission.h"
|
|
+#include "i915_drv.h"
|
|
+
|
|
+#define SUPPORTED_IPTS_INTERFACE_VERSION 1
|
|
+
|
|
+#define REACQUIRE_DB_THRESHOLD 10
|
|
+
|
|
+#define DB_LOST_CHECK_STEP1_INTERVAL 2500 // ms
|
|
+#define DB_LOST_CHECK_STEP2_INTERVAL 1000 // ms
|
|
+
|
|
+// CTX for ipts support
|
|
+struct ipts {
|
|
+ struct drm_device *dev;
|
|
+ struct i915_gem_context *ipts_context;
|
|
+ struct ipts_callback ipts_clbks;
|
|
+
|
|
+ // buffers' list
|
|
+ struct {
|
|
+ spinlock_t lock;
|
|
+ struct list_head list;
|
|
+ } buffers;
|
|
+
|
|
+ void *data;
|
|
+
|
|
+ struct delayed_work reacquire_db_work;
|
|
+ struct ipts_wq_info wq_info;
|
|
+ u32 old_tail;
|
|
+ u32 old_head;
|
|
+ bool need_reacquire_db;
|
|
+
|
|
+ bool connected;
|
|
+ bool initialized;
|
|
+};
|
|
+
|
|
+struct ipts ipts;
|
|
+
|
|
+struct ipts_object {
|
|
+ struct list_head list;
|
|
+ struct drm_i915_gem_object *gem_obj;
|
|
+ void *cpu_addr;
|
|
+};
|
|
+
|
|
+static struct ipts_object *ipts_object_create(size_t size, u32 flags)
|
|
+{
|
|
+ struct drm_i915_private *dev_priv = to_i915(ipts.dev);
|
|
+ struct ipts_object *obj = NULL;
|
|
+ struct drm_i915_gem_object *gem_obj = NULL;
|
|
+ int ret = 0;
|
|
+
|
|
+ obj = kzalloc(sizeof(*obj), GFP_KERNEL);
|
|
+ if (!obj)
|
|
+ return NULL;
|
|
+
|
|
+ size = roundup(size, PAGE_SIZE);
|
|
+ if (size == 0) {
|
|
+ ret = -EINVAL;
|
|
+ goto err_out;
|
|
+ }
|
|
+
|
|
+ // Allocate the new object
|
|
+ gem_obj = i915_gem_object_create(dev_priv, size);
|
|
+ if (gem_obj == NULL) {
|
|
+ ret = -ENOMEM;
|
|
+ goto err_out;
|
|
+ }
|
|
+
|
|
+ if (flags & IPTS_BUF_FLAG_CONTIGUOUS) {
|
|
+ ret = i915_gem_object_attach_phys(gem_obj, PAGE_SIZE);
|
|
+ if (ret) {
|
|
+ pr_info(">> ipts no contiguous : %d\n", ret);
|
|
+ goto err_out;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ obj->gem_obj = gem_obj;
|
|
+
|
|
+ spin_lock(&ipts.buffers.lock);
|
|
+ list_add_tail(&obj->list, &ipts.buffers.list);
|
|
+ spin_unlock(&ipts.buffers.lock);
|
|
+
|
|
+ return obj;
|
|
+
|
|
+err_out:
|
|
+
|
|
+ if (gem_obj)
|
|
+ i915_gem_free_object(&gem_obj->base);
|
|
+
|
|
+ kfree(obj);
|
|
+
|
|
+ return NULL;
|
|
+}
|
|
+
|
|
+static void ipts_object_free(struct ipts_object *obj)
|
|
+{
|
|
+ spin_lock(&ipts.buffers.lock);
|
|
+ list_del(&obj->list);
|
|
+ spin_unlock(&ipts.buffers.lock);
|
|
+
|
|
+ i915_gem_free_object(&obj->gem_obj->base);
|
|
+ kfree(obj);
|
|
+}
|
|
+
|
|
+static int ipts_object_pin(struct ipts_object *obj,
|
|
+ struct i915_gem_context *ipts_ctx)
|
|
+{
|
|
+ struct i915_address_space *vm = NULL;
|
|
+ struct i915_vma *vma = NULL;
|
|
+ struct drm_i915_private *dev_priv = to_i915(ipts.dev);
|
|
+ int ret = 0;
|
|
+
|
|
+ if (ipts_ctx->ppgtt)
|
|
+ vm = &ipts_ctx->ppgtt->vm;
|
|
+ else
|
|
+ vm = &dev_priv->ggtt.vm;
|
|
+
|
|
+ vma = i915_vma_instance(obj->gem_obj, vm, NULL);
|
|
+ if (IS_ERR(vma)) {
|
|
+ DRM_ERROR("cannot find or create vma\n");
|
|
+ return -1;
|
|
+ }
|
|
+
|
|
+ ret = i915_vma_pin(vma, 0, PAGE_SIZE, PIN_USER);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static void ipts_object_unpin(struct ipts_object *obj)
|
|
+{
|
|
+ // TODO: Add support
|
|
+}
|
|
+
|
|
+static void *ipts_object_map(struct ipts_object *obj)
|
|
+{
|
|
+ return i915_gem_object_pin_map(obj->gem_obj, I915_MAP_WB);
|
|
+}
|
|
+
|
|
+static void ipts_object_unmap(struct ipts_object *obj)
|
|
+{
|
|
+ i915_gem_object_unpin_map(obj->gem_obj);
|
|
+ obj->cpu_addr = NULL;
|
|
+}
|
|
+
|
|
+static int create_ipts_context(void)
|
|
+{
|
|
+ struct i915_gem_context *ipts_ctx = NULL;
|
|
+ struct drm_i915_private *dev_priv = to_i915(ipts.dev);
|
|
+ struct intel_context *ce = NULL;
|
|
+ struct intel_context *pin_ret;
|
|
+ int ret = 0;
|
|
+
|
|
+ // Initialize the context right away.
|
|
+ ret = i915_mutex_lock_interruptible(ipts.dev);
|
|
+ if (ret) {
|
|
+ DRM_ERROR("i915_mutex_lock_interruptible failed\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ ipts_ctx = i915_gem_context_create_ipts(ipts.dev);
|
|
+ if (IS_ERR(ipts_ctx)) {
|
|
+ DRM_ERROR("Failed to create IPTS context (error %ld)\n",
|
|
+ PTR_ERR(ipts_ctx));
|
|
+ ret = PTR_ERR(ipts_ctx);
|
|
+ goto err_unlock;
|
|
+ }
|
|
+
|
|
+ ce = to_intel_context(ipts_ctx, dev_priv->engine[RCS]);
|
|
+ if (IS_ERR(ce)) {
|
|
+ DRM_ERROR("Failed to create intel context (error %ld)\n",
|
|
+ PTR_ERR(ce));
|
|
+ ret = PTR_ERR(ce);
|
|
+ goto err_unlock;
|
|
+ }
|
|
+
|
|
+ ret = execlists_context_deferred_alloc(ipts_ctx, dev_priv->engine[RCS], ce);
|
|
+ if (ret) {
|
|
+ DRM_DEBUG("lr context allocation failed: %d\n", ret);
|
|
+ goto err_ctx;
|
|
+ }
|
|
+
|
|
+ pin_ret = execlists_context_pin(dev_priv->engine[RCS], ipts_ctx);
|
|
+ if (IS_ERR(pin_ret)) {
|
|
+ DRM_DEBUG("lr context pinning failed: %ld\n", PTR_ERR(pin_ret));
|
|
+ goto err_ctx;
|
|
+ }
|
|
+
|
|
+ // Release the mutex
|
|
+ mutex_unlock(&ipts.dev->struct_mutex);
|
|
+
|
|
+ spin_lock_init(&ipts.buffers.lock);
|
|
+ INIT_LIST_HEAD(&ipts.buffers.list);
|
|
+
|
|
+ ipts.ipts_context = ipts_ctx;
|
|
+
|
|
+ return 0;
|
|
+
|
|
+err_ctx:
|
|
+ if (ipts_ctx)
|
|
+ i915_gem_context_put(ipts_ctx);
|
|
+
|
|
+err_unlock:
|
|
+ mutex_unlock(&ipts.dev->struct_mutex);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static void destroy_ipts_context(void)
|
|
+{
|
|
+ struct i915_gem_context *ipts_ctx = NULL;
|
|
+ struct drm_i915_private *dev_priv = to_i915(ipts.dev);
|
|
+ struct intel_context *ce = NULL;
|
|
+ int ret = 0;
|
|
+
|
|
+ ipts_ctx = ipts.ipts_context;
|
|
+
|
|
+ ce = to_intel_context(ipts_ctx, dev_priv->engine[RCS]);
|
|
+
|
|
+ // Initialize the context right away.
|
|
+ ret = i915_mutex_lock_interruptible(ipts.dev);
|
|
+ if (ret) {
|
|
+ DRM_ERROR("i915_mutex_lock_interruptible failed\n");
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ execlists_context_unpin(ce);
|
|
+ i915_gem_context_put(ipts_ctx);
|
|
+
|
|
+ mutex_unlock(&ipts.dev->struct_mutex);
|
|
+}
|
|
+
|
|
+int ipts_notify_complete(void)
|
|
+{
|
|
+ if (ipts.ipts_clbks.workload_complete)
|
|
+ ipts.ipts_clbks.workload_complete(ipts.data);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+int ipts_notify_backlight_status(bool backlight_on)
|
|
+{
|
|
+ if (ipts.ipts_clbks.notify_gfx_status) {
|
|
+ if (backlight_on) {
|
|
+ ipts.ipts_clbks.notify_gfx_status(
|
|
+ IPTS_NOTIFY_STA_BACKLIGHT_ON, ipts.data);
|
|
+ schedule_delayed_work(&ipts.reacquire_db_work,
|
|
+ msecs_to_jiffies(DB_LOST_CHECK_STEP1_INTERVAL));
|
|
+ } else {
|
|
+ ipts.ipts_clbks.notify_gfx_status(
|
|
+ IPTS_NOTIFY_STA_BACKLIGHT_OFF, ipts.data);
|
|
+ cancel_delayed_work(&ipts.reacquire_db_work);
|
|
+ }
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void ipts_reacquire_db(struct ipts *ipts_p)
|
|
+{
|
|
+ int ret = 0;
|
|
+
|
|
+ ret = i915_mutex_lock_interruptible(ipts_p->dev);
|
|
+ if (ret) {
|
|
+ DRM_ERROR("i915_mutex_lock_interruptible failed\n");
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ // Reacquire the doorbell
|
|
+ i915_guc_ipts_reacquire_doorbell(ipts_p->dev->dev_private);
|
|
+
|
|
+ mutex_unlock(&ipts_p->dev->struct_mutex);
|
|
+}
|
|
+
|
|
+static int ipts_get_wq_info(uint64_t gfx_handle,
|
|
+ struct ipts_wq_info *wq_info)
|
|
+{
|
|
+ if (gfx_handle != (uint64_t)&ipts) {
|
|
+ DRM_ERROR("invalid gfx handle\n");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ *wq_info = ipts.wq_info;
|
|
+
|
|
+ ipts_reacquire_db(&ipts);
|
|
+ schedule_delayed_work(&ipts.reacquire_db_work,
|
|
+ msecs_to_jiffies(DB_LOST_CHECK_STEP1_INTERVAL));
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int set_wq_info(void)
|
|
+{
|
|
+ struct drm_i915_private *dev_priv = to_i915(ipts.dev);
|
|
+ struct intel_guc *guc = &dev_priv->guc;
|
|
+ struct intel_guc_client *client;
|
|
+ struct guc_process_desc *desc;
|
|
+ struct ipts_wq_info *wq_info;
|
|
+ void *base = NULL;
|
|
+ u64 phy_base = 0;
|
|
+
|
|
+ wq_info = &ipts.wq_info;
|
|
+
|
|
+ client = guc->ipts_client;
|
|
+ if (!client) {
|
|
+ DRM_ERROR("IPTS GuC client is NOT available\n");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ base = client->vaddr;
|
|
+ desc = (struct guc_process_desc *)
|
|
+ ((u64)base + client->proc_desc_offset);
|
|
+
|
|
+ desc->wq_base_addr = (u64)base + GUC_DB_SIZE;
|
|
+ desc->db_base_addr = (u64)base + client->doorbell_offset;
|
|
+
|
|
+ // IPTS expects physical addresses to pass it to ME
|
|
+ phy_base = sg_dma_address(client->vma->pages->sgl);
|
|
+
|
|
+ wq_info->db_addr = desc->db_base_addr;
|
|
+ wq_info->db_phy_addr = phy_base + client->doorbell_offset;
|
|
+ wq_info->db_cookie_offset = offsetof(struct guc_doorbell_info, cookie);
|
|
+ wq_info->wq_addr = desc->wq_base_addr;
|
|
+ wq_info->wq_phy_addr = phy_base + GUC_DB_SIZE;
|
|
+ wq_info->wq_head_addr = (u64)&desc->head;
|
|
+ wq_info->wq_tail_addr = (u64)&desc->tail;
|
|
+ wq_info->wq_size = desc->wq_size_bytes;
|
|
+
|
|
+ wq_info->wq_head_phy_addr = phy_base + client->proc_desc_offset +
|
|
+ offsetof(struct guc_process_desc, head);
|
|
+
|
|
+ wq_info->wq_tail_phy_addr = phy_base + client->proc_desc_offset +
|
|
+ offsetof(struct guc_process_desc, tail);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ipts_init_wq(void)
|
|
+{
|
|
+ int ret = 0;
|
|
+
|
|
+ ret = i915_mutex_lock_interruptible(ipts.dev);
|
|
+ if (ret) {
|
|
+ DRM_ERROR("i915_mutex_lock_interruptible failed\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ // disable IPTS submission
|
|
+ i915_guc_ipts_submission_disable(ipts.dev->dev_private);
|
|
+
|
|
+ // enable IPTS submission
|
|
+ ret = i915_guc_ipts_submission_enable(ipts.dev->dev_private,
|
|
+ ipts.ipts_context);
|
|
+ if (ret) {
|
|
+ DRM_ERROR("i915_guc_ipts_submission_enable failed: %d\n", ret);
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+ ret = set_wq_info();
|
|
+ if (ret) {
|
|
+ DRM_ERROR("set_wq_info failed\n");
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+out:
|
|
+ mutex_unlock(&ipts.dev->struct_mutex);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static void ipts_release_wq(void)
|
|
+{
|
|
+ int ret = 0;
|
|
+
|
|
+ ret = i915_mutex_lock_interruptible(ipts.dev);
|
|
+ if (ret) {
|
|
+ DRM_ERROR("i915_mutex_lock_interruptible failed\n");
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ // disable IPTS submission
|
|
+ i915_guc_ipts_submission_disable(ipts.dev->dev_private);
|
|
+
|
|
+ mutex_unlock(&ipts.dev->struct_mutex);
|
|
+}
|
|
+
|
|
+static int ipts_map_buffer(u64 gfx_handle, struct ipts_mapbuffer *mapbuf)
|
|
+{
|
|
+ struct ipts_object *obj;
|
|
+ struct i915_gem_context *ipts_ctx = NULL;
|
|
+ struct drm_i915_private *dev_priv = to_i915(ipts.dev);
|
|
+ struct i915_address_space *vm = NULL;
|
|
+ struct i915_vma *vma = NULL;
|
|
+ int ret = 0;
|
|
+
|
|
+ if (gfx_handle != (uint64_t)&ipts) {
|
|
+ DRM_ERROR("invalid gfx handle\n");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ // Acquire mutex first
|
|
+ ret = i915_mutex_lock_interruptible(ipts.dev);
|
|
+ if (ret) {
|
|
+ DRM_ERROR("i915_mutex_lock_interruptible failed\n");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ obj = ipts_object_create(mapbuf->size, mapbuf->flags);
|
|
+ if (!obj)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ ipts_ctx = ipts.ipts_context;
|
|
+ ret = ipts_object_pin(obj, ipts_ctx);
|
|
+ if (ret) {
|
|
+ DRM_ERROR("Not able to pin iTouch obj\n");
|
|
+ ipts_object_free(obj);
|
|
+ mutex_unlock(&ipts.dev->struct_mutex);
|
|
+ return -ENOMEM;
|
|
+ }
|
|
+
|
|
+ if (mapbuf->flags & IPTS_BUF_FLAG_CONTIGUOUS)
|
|
+ obj->cpu_addr = obj->gem_obj->phys_handle->vaddr;
|
|
+ else
|
|
+ obj->cpu_addr = ipts_object_map(obj);
|
|
+
|
|
+ if (ipts_ctx->ppgtt)
|
|
+ vm = &ipts_ctx->ppgtt->vm;
|
|
+ else
|
|
+ vm = &dev_priv->ggtt.vm;
|
|
+
|
|
+ vma = i915_vma_instance(obj->gem_obj, vm, NULL);
|
|
+ if (IS_ERR(vma)) {
|
|
+ DRM_ERROR("cannot find or create vma\n");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ mapbuf->gfx_addr = (void *)vma->node.start;
|
|
+ mapbuf->cpu_addr = (void *)obj->cpu_addr;
|
|
+ mapbuf->buf_handle = (u64)obj;
|
|
+ if (mapbuf->flags & IPTS_BUF_FLAG_CONTIGUOUS)
|
|
+ mapbuf->phy_addr = (u64)obj->gem_obj->phys_handle->busaddr;
|
|
+
|
|
+ // Release the mutex
|
|
+ mutex_unlock(&ipts.dev->struct_mutex);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ipts_unmap_buffer(uint64_t gfx_handle, uint64_t buf_handle)
|
|
+{
|
|
+ struct ipts_object *obj = (struct ipts_object *)buf_handle;
|
|
+
|
|
+ if (gfx_handle != (uint64_t)&ipts) {
|
|
+ DRM_ERROR("invalid gfx handle\n");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ if (!obj->gem_obj->phys_handle)
|
|
+ ipts_object_unmap(obj);
|
|
+
|
|
+ ipts_object_unpin(obj);
|
|
+ ipts_object_free(obj);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+int ipts_connect(struct ipts_connect *ipts_connect)
|
|
+{
|
|
+ u32 flags = DL_FLAG_PM_RUNTIME | DL_FLAG_AUTOREMOVE_CONSUMER;
|
|
+ struct drm_i915_private *dev_priv = to_i915(ipts.dev);
|
|
+
|
|
+ if (!ipts.initialized)
|
|
+ return -EIO;
|
|
+
|
|
+ if (!ipts_connect)
|
|
+ return -EINVAL;
|
|
+
|
|
+ if (ipts_connect->if_version > SUPPORTED_IPTS_INTERFACE_VERSION)
|
|
+ return -EINVAL;
|
|
+
|
|
+ // set up device-link for PM
|
|
+ if (!device_link_add(ipts_connect->client, ipts.dev->dev, flags))
|
|
+ return -EFAULT;
|
|
+
|
|
+ // return gpu operations for ipts
|
|
+ ipts_connect->ipts_ops.get_wq_info = ipts_get_wq_info;
|
|
+ ipts_connect->ipts_ops.map_buffer = ipts_map_buffer;
|
|
+ ipts_connect->ipts_ops.unmap_buffer = ipts_unmap_buffer;
|
|
+ ipts_connect->gfx_version = INTEL_INFO(dev_priv)->gen;
|
|
+ ipts_connect->gfx_handle = (uint64_t)&ipts;
|
|
+
|
|
+ // save callback and data
|
|
+ ipts.data = ipts_connect->data;
|
|
+ ipts.ipts_clbks = ipts_connect->ipts_cb;
|
|
+
|
|
+ ipts.connected = true;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(ipts_connect);
|
|
+
|
|
+void ipts_disconnect(uint64_t gfx_handle)
|
|
+{
|
|
+ if (!ipts.initialized)
|
|
+ return;
|
|
+
|
|
+ if (gfx_handle != (uint64_t)&ipts || !ipts.connected) {
|
|
+ DRM_ERROR("invalid gfx handle\n");
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ ipts.data = 0;
|
|
+ memset(&ipts.ipts_clbks, 0, sizeof(struct ipts_callback));
|
|
+
|
|
+ ipts.connected = false;
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(ipts_disconnect);
|
|
+
|
|
+static void reacquire_db_work_func(struct work_struct *work)
|
|
+{
|
|
+ struct delayed_work *d_work = container_of(work,
|
|
+ struct delayed_work, work);
|
|
+ struct ipts *ipts_p = container_of(d_work,
|
|
+ struct ipts, reacquire_db_work);
|
|
+ u32 head;
|
|
+ u32 tail;
|
|
+ u32 size;
|
|
+ u32 load;
|
|
+
|
|
+ head = *(u32 *)ipts_p->wq_info.wq_head_addr;
|
|
+ tail = *(u32 *)ipts_p->wq_info.wq_tail_addr;
|
|
+ size = ipts_p->wq_info.wq_size;
|
|
+
|
|
+ if (head >= tail)
|
|
+ load = head - tail;
|
|
+ else
|
|
+ load = head + size - tail;
|
|
+
|
|
+ if (load < REACQUIRE_DB_THRESHOLD) {
|
|
+ ipts_p->need_reacquire_db = false;
|
|
+ goto reschedule_work;
|
|
+ }
|
|
+
|
|
+ if (ipts_p->need_reacquire_db) {
|
|
+ if (ipts_p->old_head == head &&
|
|
+ ipts_p->old_tail == tail)
|
|
+ ipts_reacquire_db(ipts_p);
|
|
+ ipts_p->need_reacquire_db = false;
|
|
+ } else {
|
|
+ ipts_p->old_head = head;
|
|
+ ipts_p->old_tail = tail;
|
|
+ ipts_p->need_reacquire_db = true;
|
|
+
|
|
+ // recheck
|
|
+ schedule_delayed_work(&ipts_p->reacquire_db_work,
|
|
+ msecs_to_jiffies(DB_LOST_CHECK_STEP2_INTERVAL));
|
|
+ return;
|
|
+ }
|
|
+
|
|
+reschedule_work:
|
|
+ schedule_delayed_work(&ipts_p->reacquire_db_work,
|
|
+ msecs_to_jiffies(DB_LOST_CHECK_STEP1_INTERVAL));
|
|
+}
|
|
+
|
|
+/**
|
|
+ * ipts_init - Initialize ipts support
|
|
+ * @dev: drm device
|
|
+ *
|
|
+ * Setup the required structures for ipts.
|
|
+ */
|
|
+int ipts_init(struct drm_device *dev)
|
|
+{
|
|
+ int ret = 0;
|
|
+
|
|
+ pr_info("ipts: initializing ipts\n");
|
|
+
|
|
+ ipts.dev = dev;
|
|
+ INIT_DELAYED_WORK(&ipts.reacquire_db_work,
|
|
+ reacquire_db_work_func);
|
|
+
|
|
+ ret = create_ipts_context();
|
|
+ if (ret)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ ret = ipts_init_wq();
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
+ ipts.initialized = true;
|
|
+ pr_info("ipts: Intel iTouch framework initialized\n");
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+void ipts_cleanup(struct drm_device *dev)
|
|
+{
|
|
+ struct ipts_object *obj, *n;
|
|
+
|
|
+ if (ipts.dev != dev)
|
|
+ return;
|
|
+
|
|
+ list_for_each_entry_safe(obj, n, &ipts.buffers.list, list) {
|
|
+ struct i915_vma *vma, *vn;
|
|
+
|
|
+ list_for_each_entry_safe(vma, vn, &obj->list, obj_link) {
|
|
+ vma->flags &= ~I915_VMA_PIN_MASK;
|
|
+ i915_vma_destroy(vma);
|
|
+ }
|
|
+
|
|
+ list_del(&obj->list);
|
|
+
|
|
+ if (!obj->gem_obj->phys_handle)
|
|
+ ipts_object_unmap(obj);
|
|
+
|
|
+ ipts_object_unpin(obj);
|
|
+ i915_gem_free_object(&obj->gem_obj->base);
|
|
+ kfree(obj);
|
|
+ }
|
|
+
|
|
+ ipts_release_wq();
|
|
+ destroy_ipts_context();
|
|
+ cancel_delayed_work(&ipts.reacquire_db_work);
|
|
+}
|
|
diff --git a/drivers/gpu/drm/i915/intel_ipts.h b/drivers/gpu/drm/i915/intel_ipts.h
|
|
new file mode 100644
|
|
index 0000000000000..67f90b72f2378
|
|
--- /dev/null
|
|
+++ b/drivers/gpu/drm/i915/intel_ipts.h
|
|
@@ -0,0 +1,34 @@
|
|
+/*
|
|
+ * Copyright © 2016 Intel Corporation
|
|
+ *
|
|
+ * Permission is hereby granted, free of charge, to any person obtaining a
|
|
+ * copy of this software and associated documentation files (the "Software"),
|
|
+ * to deal in the Software without restriction, including without limitation
|
|
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
+ * and/or sell copies of the Software, and to permit persons to whom the
|
|
+ * Software is furnished to do so, subject to the following conditions:
|
|
+ *
|
|
+ * The above copyright notice and this permission notice (including the next
|
|
+ * paragraph) shall be included in all copies or substantial portions of the
|
|
+ * Software.
|
|
+ *
|
|
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
+ * IN THE SOFTWARE.
|
|
+ *
|
|
+ */
|
|
+#ifndef _INTEL_IPTS_H_
|
|
+#define _INTEL_IPTS_H_
|
|
+
|
|
+#include <drm/drm_device.h>
|
|
+
|
|
+int ipts_init(struct drm_device *dev);
|
|
+void ipts_cleanup(struct drm_device *dev);
|
|
+int ipts_notify_backlight_status(bool backlight_on);
|
|
+int ipts_notify_complete(void);
|
|
+
|
|
+#endif //_INTEL_IPTS_H_
|
|
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
|
|
index 13e97faabaa74..a4af67d3d6ffd 100644
|
|
--- a/drivers/gpu/drm/i915/intel_lrc.c
|
|
+++ b/drivers/gpu/drm/i915/intel_lrc.c
|
|
@@ -164,9 +164,6 @@
|
|
#define WA_TAIL_DWORDS 2
|
|
#define WA_TAIL_BYTES (sizeof(u32) * WA_TAIL_DWORDS)
|
|
|
|
-static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
|
|
- struct intel_engine_cs *engine,
|
|
- struct intel_context *ce);
|
|
static void execlists_init_reg_state(u32 *reg_state,
|
|
struct i915_gem_context *ctx,
|
|
struct intel_engine_cs *engine,
|
|
@@ -1292,7 +1289,7 @@ static void execlists_context_destroy(struct intel_context *ce)
|
|
i915_gem_object_put(ce->state->obj);
|
|
}
|
|
|
|
-static void execlists_context_unpin(struct intel_context *ce)
|
|
+void execlists_context_unpin(struct intel_context *ce)
|
|
{
|
|
intel_ring_unpin(ce->ring);
|
|
|
|
@@ -1379,7 +1376,7 @@ static const struct intel_context_ops execlists_context_ops = {
|
|
.destroy = execlists_context_destroy,
|
|
};
|
|
|
|
-static struct intel_context *
|
|
+struct intel_context *
|
|
execlists_context_pin(struct intel_engine_cs *engine,
|
|
struct i915_gem_context *ctx)
|
|
{
|
|
@@ -2479,6 +2476,9 @@ int logical_render_ring_init(struct intel_engine_cs *engine)
|
|
|
|
logical_ring_setup(engine);
|
|
|
|
+ engine->irq_keep_mask |= GT_RENDER_PIPECTL_NOTIFY_INTERRUPT
|
|
+ << GEN8_RCS_IRQ_SHIFT;
|
|
+
|
|
if (HAS_L3_DPF(dev_priv))
|
|
engine->irq_keep_mask |= GT_RENDER_L3_PARITY_ERROR_INTERRUPT;
|
|
|
|
@@ -2743,7 +2743,7 @@ populate_lr_context(struct i915_gem_context *ctx,
|
|
return ret;
|
|
}
|
|
|
|
-static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
|
|
+int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
|
|
struct intel_engine_cs *engine,
|
|
struct intel_context *ce)
|
|
{
|
|
diff --git a/drivers/gpu/drm/i915/intel_lrc.h b/drivers/gpu/drm/i915/intel_lrc.h
|
|
index 4dfb78e3ec7e4..32159231a16e7 100644
|
|
--- a/drivers/gpu/drm/i915/intel_lrc.h
|
|
+++ b/drivers/gpu/drm/i915/intel_lrc.h
|
|
@@ -106,4 +106,12 @@ void intel_lr_context_resume(struct drm_i915_private *dev_priv);
|
|
|
|
void intel_execlists_set_default_submission(struct intel_engine_cs *engine);
|
|
|
|
+struct intel_context *
|
|
+execlists_context_pin(struct intel_engine_cs *engine,
|
|
+ struct i915_gem_context *ctx);
|
|
+void execlists_context_unpin(struct intel_context *ce);
|
|
+int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
|
|
+ struct intel_engine_cs *engine,
|
|
+ struct intel_context *ce);
|
|
+
|
|
#endif /* _INTEL_LRC_H_ */
|
|
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
|
|
index 4a9f139e7b738..c137a57f67026 100644
|
|
--- a/drivers/gpu/drm/i915/intel_panel.c
|
|
+++ b/drivers/gpu/drm/i915/intel_panel.c
|
|
@@ -34,6 +34,7 @@
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/pwm.h>
|
|
#include "intel_drv.h"
|
|
+#include "intel_ipts.h"
|
|
|
|
#define CRC_PMIC_PWM_PERIOD_NS 21333
|
|
|
|
@@ -659,6 +660,9 @@ static void lpt_disable_backlight(const struct drm_connector_state *old_conn_sta
|
|
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
|
|
u32 tmp;
|
|
|
|
+ if (INTEL_GEN(dev_priv) >= 9 && i915_modparams.enable_guc && i915_modparams.enable_ipts)
|
|
+ ipts_notify_backlight_status(false);
|
|
+
|
|
intel_panel_actually_set_backlight(old_conn_state, 0);
|
|
|
|
/*
|
|
@@ -846,6 +850,9 @@ static void lpt_enable_backlight(const struct intel_crtc_state *crtc_state,
|
|
|
|
/* This won't stick until the above enable. */
|
|
intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
|
|
+
|
|
+ if (INTEL_GEN(dev_priv) >= 9 && i915_modparams.enable_guc && i915_modparams.enable_ipts)
|
|
+ ipts_notify_backlight_status(true);
|
|
}
|
|
|
|
static void pch_enable_backlight(const struct intel_crtc_state *crtc_state,
|
|
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
|
|
index 3726eacdf65de..77263b5f5915a 100644
|
|
--- a/drivers/misc/Kconfig
|
|
+++ b/drivers/misc/Kconfig
|
|
@@ -520,6 +520,7 @@ source "drivers/misc/ti-st/Kconfig"
|
|
source "drivers/misc/lis3lv02d/Kconfig"
|
|
source "drivers/misc/altera-stapl/Kconfig"
|
|
source "drivers/misc/mei/Kconfig"
|
|
+source "drivers/misc/ipts/Kconfig"
|
|
source "drivers/misc/vmw_vmci/Kconfig"
|
|
source "drivers/misc/mic/Kconfig"
|
|
source "drivers/misc/genwqe/Kconfig"
|
|
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
|
|
index af22bbc3d00cb..eb1eb0d58c327 100644
|
|
--- a/drivers/misc/Makefile
|
|
+++ b/drivers/misc/Makefile
|
|
@@ -44,6 +44,7 @@ obj-y += lis3lv02d/
|
|
obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o
|
|
obj-$(CONFIG_ALTERA_STAPL) +=altera-stapl/
|
|
obj-$(CONFIG_INTEL_MEI) += mei/
|
|
+obj-$(CONFIG_INTEL_IPTS) += ipts/
|
|
obj-$(CONFIG_VMWARE_VMCI) += vmw_vmci/
|
|
obj-$(CONFIG_LATTICE_ECP3_CONFIG) += lattice-ecp3-config.o
|
|
obj-$(CONFIG_SRAM) += sram.o
|
|
diff --git a/drivers/misc/ipts/Kconfig b/drivers/misc/ipts/Kconfig
|
|
new file mode 100644
|
|
index 0000000000000..900d2c58ca74c
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/Kconfig
|
|
@@ -0,0 +1,12 @@
|
|
+# SPDX-License-Identifier: GPL-2.0-or-later
|
|
+config INTEL_IPTS
|
|
+ tristate "Intel Precise Touch & Stylus"
|
|
+ select INTEL_MEI
|
|
+ depends on X86 && PCI && HID && DRM_I915
|
|
+ help
|
|
+ Intel Precise Touch & Stylus support
|
|
+ Supported SoCs:
|
|
+ Intel Skylake
|
|
+ Intel Kabylake
|
|
+
|
|
+source "drivers/misc/ipts/companion/Kconfig"
|
|
diff --git a/drivers/misc/ipts/Makefile b/drivers/misc/ipts/Makefile
|
|
new file mode 100644
|
|
index 0000000000000..bb3982f48afcb
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/Makefile
|
|
@@ -0,0 +1,19 @@
|
|
+# SPDX-License-Identifier: GPL-2.0-or-later
|
|
+#
|
|
+# Makefile - Intel Precise Touch & Stylus device driver
|
|
+# Copyright (c) 2016 Intel Corporation
|
|
+#
|
|
+
|
|
+obj-$(CONFIG_INTEL_IPTS)+= intel-ipts.o
|
|
+intel-ipts-objs += companion.o
|
|
+intel-ipts-objs += ipts.o
|
|
+intel-ipts-objs += mei.o
|
|
+intel-ipts-objs += hid.o
|
|
+intel-ipts-objs += msg-handler.o
|
|
+intel-ipts-objs += kernel.o
|
|
+intel-ipts-objs += params.o
|
|
+intel-ipts-objs += resource.o
|
|
+intel-ipts-objs += gfx.o
|
|
+intel-ipts-$(CONFIG_DEBUG_FS) += dbgfs.o
|
|
+
|
|
+obj-y += companion/
|
|
diff --git a/drivers/misc/ipts/companion.c b/drivers/misc/ipts/companion.c
|
|
new file mode 100644
|
|
index 0000000000000..8f66b852f1371
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/companion.c
|
|
@@ -0,0 +1,211 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/firmware.h>
|
|
+#include <linux/ipts.h>
|
|
+#include <linux/ipts-binary.h>
|
|
+#include <linux/ipts-companion.h>
|
|
+#include <linux/mutex.h>
|
|
+
|
|
+#include "companion.h"
|
|
+#include "ipts.h"
|
|
+#include "params.h"
|
|
+
|
|
+#define IPTS_FW_PATH_FMT "intel/ipts/%s"
|
|
+#define IPTS_FW_CONFIG_FILE "ipts_fw_config.bin"
|
|
+
|
|
+struct ipts_companion *ipts_companion;
|
|
+DEFINE_MUTEX(ipts_companion_lock);
|
|
+
|
|
+bool ipts_companion_available(void)
|
|
+{
|
|
+ bool ret;
|
|
+
|
|
+ mutex_lock(&ipts_companion_lock);
|
|
+
|
|
+ ret = ipts_companion != NULL;
|
|
+
|
|
+ mutex_unlock(&ipts_companion_lock);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+/*
|
|
+ * General purpose API for adding or removing a companion driver
|
|
+ * A companion driver is a driver that implements hardware specific
|
|
+ * behaviour into IPTS, so it doesn't have to be hardcoded into the
|
|
+ * main driver. All requests to the companion driver should be wrapped,
|
|
+ * with a fallback in case a companion driver cannot be found.
|
|
+ */
|
|
+
|
|
+int ipts_add_companion(struct ipts_companion *companion)
|
|
+{
|
|
+ int ret;
|
|
+
|
|
+ // Make sure that access to the companion is synchronized
|
|
+ mutex_lock(&ipts_companion_lock);
|
|
+
|
|
+ if (ipts_companion == NULL) {
|
|
+ ret = 0;
|
|
+ ipts_companion = companion;
|
|
+ } else {
|
|
+ ret = -EBUSY;
|
|
+ }
|
|
+
|
|
+ mutex_unlock(&ipts_companion_lock);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(ipts_add_companion);
|
|
+
|
|
+int ipts_remove_companion(struct ipts_companion *companion)
|
|
+{
|
|
+ int ret;
|
|
+
|
|
+ // Make sure that access to the companion is synchronized
|
|
+ mutex_lock(&ipts_companion_lock);
|
|
+
|
|
+ if (ipts_companion != NULL && companion != NULL &&
|
|
+ ipts_companion->name != companion->name) {
|
|
+ ret = -EPERM;
|
|
+ } else {
|
|
+ ret = 0;
|
|
+ ipts_companion = NULL;
|
|
+ }
|
|
+
|
|
+ mutex_unlock(&ipts_companion_lock);
|
|
+ return ret;
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(ipts_remove_companion);
|
|
+
|
|
+/*
|
|
+ * Utility functions for IPTS. These functions replace codepaths in the IPTS
|
|
+ * driver, and redirect them to the companion driver, if one was found.
|
|
+ * Otherwise the legacy code gets executed as a fallback.
|
|
+ */
|
|
+
|
|
+int ipts_request_firmware(const struct firmware **fw, const char *name,
|
|
+ struct device *device)
|
|
+{
|
|
+ int ret = 0;
|
|
+ char fw_path[MAX_IOCL_FILE_PATH_LEN];
|
|
+
|
|
+ // Make sure that access to the companion is synchronized
|
|
+ mutex_lock(&ipts_companion_lock);
|
|
+
|
|
+ // Check if a companion was registered. If not, skip
|
|
+ // forward and try to load the firmware from the legacy path
|
|
+ if (ipts_companion == NULL || ipts_modparams.ignore_companion)
|
|
+ goto request_firmware_fallback;
|
|
+
|
|
+ ret = ipts_companion->firmware_request(ipts_companion, fw,
|
|
+ name, device);
|
|
+ if (!ret)
|
|
+ goto request_firmware_return;
|
|
+
|
|
+request_firmware_fallback:
|
|
+
|
|
+ // If fallback loading for firmware was disabled, abort.
|
|
+ // Return -ENOENT as no firmware file was found.
|
|
+ if (ipts_modparams.ignore_fw_fallback) {
|
|
+ ret = -ENOENT;
|
|
+ goto request_firmware_return;
|
|
+ }
|
|
+
|
|
+ // No firmware was found by the companion driver, try the generic path.
|
|
+ snprintf(fw_path, MAX_IOCL_FILE_PATH_LEN, IPTS_FW_PATH_FMT, name);
|
|
+ ret = request_firmware(fw, fw_path, device);
|
|
+
|
|
+request_firmware_return:
|
|
+
|
|
+ mutex_unlock(&ipts_companion_lock);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static struct ipts_bin_fw_list *ipts_alloc_fw_list(
|
|
+ struct ipts_bin_fw_info **fw)
|
|
+{
|
|
+ int size, len, i, j;
|
|
+ struct ipts_bin_fw_list *fw_list;
|
|
+ char *itr;
|
|
+
|
|
+ // Figure out the amount of firmware files inside of the array
|
|
+ len = 0;
|
|
+ while (fw[len] != NULL)
|
|
+ len++;
|
|
+
|
|
+ // Determine the size that the final list will need in memory
|
|
+ size = sizeof(struct ipts_bin_fw_list);
|
|
+ for (i = 0; i < len; i++) {
|
|
+ size += sizeof(struct ipts_bin_fw_info);
|
|
+ size += sizeof(struct ipts_bin_data_file_info) *
|
|
+ fw[i]->num_of_data_files;
|
|
+ }
|
|
+
|
|
+ fw_list = kmalloc(size, GFP_KERNEL);
|
|
+ fw_list->num_of_fws = len;
|
|
+
|
|
+ itr = (char *)fw_list->fw_info;
|
|
+ for (i = 0; i < len; i++) {
|
|
+ *(struct ipts_bin_fw_info *)itr = *fw[i];
|
|
+
|
|
+ itr += sizeof(struct ipts_bin_fw_info);
|
|
+
|
|
+ for (j = 0; j < fw[i]->num_of_data_files; j++) {
|
|
+ *(struct ipts_bin_data_file_info *)itr =
|
|
+ fw[i]->data_file[j];
|
|
+
|
|
+ itr += sizeof(struct ipts_bin_data_file_info);
|
|
+ }
|
|
+ }
|
|
+
|
|
+ return fw_list;
|
|
+}
|
|
+
|
|
+int ipts_request_firmware_config(struct ipts_info *ipts,
|
|
+ struct ipts_bin_fw_list **cfg)
|
|
+{
|
|
+ int ret;
|
|
+ const struct firmware *config_fw = NULL;
|
|
+
|
|
+ // Make sure that access to the companion is synchronized
|
|
+ mutex_lock(&ipts_companion_lock);
|
|
+
|
|
+ // Check if a companion was registered. If not, skip
|
|
+ // forward and try to load the firmware config from a file
|
|
+ if (ipts_modparams.ignore_companion || ipts_companion == NULL) {
|
|
+ mutex_unlock(&ipts_companion_lock);
|
|
+ goto config_fallback;
|
|
+ }
|
|
+
|
|
+ if (ipts_companion->firmware_config != NULL) {
|
|
+ *cfg = ipts_alloc_fw_list(ipts_companion->firmware_config);
|
|
+ mutex_unlock(&ipts_companion_lock);
|
|
+ return 0;
|
|
+ }
|
|
+
|
|
+config_fallback:
|
|
+
|
|
+ // If fallback loading for the firmware config was disabled, abort.
|
|
+ // Return -ENOENT as no config file was found.
|
|
+ if (ipts_modparams.ignore_config_fallback)
|
|
+ return -ENOENT;
|
|
+
|
|
+ // No firmware config was found by the companion driver,
|
|
+ // try loading it from a file now
|
|
+ ret = ipts_request_firmware(&config_fw, IPTS_FW_CONFIG_FILE,
|
|
+ &ipts->cldev->dev);
|
|
+ if (!ret)
|
|
+ *cfg = (struct ipts_bin_fw_list *)config_fw->data;
|
|
+ else
|
|
+ release_firmware(config_fw);
|
|
+
|
|
+ return ret;
|
|
+
|
|
+}
|
|
diff --git a/drivers/misc/ipts/companion.h b/drivers/misc/ipts/companion.h
|
|
new file mode 100644
|
|
index 0000000000000..7a1e4b388c40a
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/companion.h
|
|
@@ -0,0 +1,25 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_COMPANION_H_
|
|
+#define _IPTS_COMPANION_H_
|
|
+
|
|
+#include <linux/firmware.h>
|
|
+#include <linux/ipts-binary.h>
|
|
+
|
|
+#include "ipts.h"
|
|
+
|
|
+bool ipts_companion_available(void);
|
|
+
|
|
+int ipts_request_firmware(const struct firmware **fw, const char *name,
|
|
+ struct device *device);
|
|
+
|
|
+int ipts_request_firmware_config(struct ipts_info *ipts,
|
|
+ struct ipts_bin_fw_list **firmware_config);
|
|
+
|
|
+#endif // _IPTS_COMPANION_H_
|
|
diff --git a/drivers/misc/ipts/companion/Kconfig b/drivers/misc/ipts/companion/Kconfig
|
|
new file mode 100644
|
|
index 0000000000000..ef17d9bb5242f
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/companion/Kconfig
|
|
@@ -0,0 +1,8 @@
|
|
+# SPDX-License-Identifier: GPL-2.0-or-later
|
|
+config INTEL_IPTS_SURFACE
|
|
+ tristate "IPTS companion driver for Microsoft Surface"
|
|
+ depends on INTEL_IPTS && ACPI
|
|
+ help
|
|
+ IPTS companion driver for Microsoft Surface. This driver is
|
|
+ responsible for loading firmware using surface-specific hardware IDs.
|
|
+ If you have a Microsoft Surface using IPTS, select y or m here.
|
|
diff --git a/drivers/misc/ipts/companion/Makefile b/drivers/misc/ipts/companion/Makefile
|
|
new file mode 100644
|
|
index 0000000000000..b37f2f59937a8
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/companion/Makefile
|
|
@@ -0,0 +1,2 @@
|
|
+# SPDX-License-Identifier: GPL-2.0-or-later
|
|
+obj-$(CONFIG_INTEL_IPTS_SURFACE)+= ipts-surface.o
|
|
diff --git a/drivers/misc/ipts/companion/ipts-surface.c b/drivers/misc/ipts/companion/ipts-surface.c
|
|
new file mode 100644
|
|
index 0000000000000..a717dfcdfeba7
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/companion/ipts-surface.c
|
|
@@ -0,0 +1,157 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ * Copyright (c) 2019 Dorian Stoll
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/acpi.h>
|
|
+#include <linux/firmware.h>
|
|
+#include <linux/ipts.h>
|
|
+#include <linux/ipts-companion.h>
|
|
+#include <linux/module.h>
|
|
+#include <linux/platform_device.h>
|
|
+
|
|
+#define IPTS_SURFACE_FW_PATH_FMT "intel/ipts/%s/%s"
|
|
+
|
|
+/*
|
|
+ * checkpatch complains about this and wants it wrapped with do { } while(0);
|
|
+ * Since this would absolutely not work, just ignore checkpatch in this case.
|
|
+ */
|
|
+#define IPTS_SURFACE_FIRMWARE(X) \
|
|
+ MODULE_FIRMWARE("intel/ipts/" X "/config.bin"); \
|
|
+ MODULE_FIRMWARE("intel/ipts/" X "/intel_desc.bin"); \
|
|
+ MODULE_FIRMWARE("intel/ipts/" X "/vendor_desc.bin"); \
|
|
+ MODULE_FIRMWARE("intel/ipts/" X "/vendor_kernel.bin")
|
|
+
|
|
+/*
|
|
+ * Checkpatch complains about the following lines because it sees them as
|
|
+ * header files mixed with .c files. However, forward declaration is perfectly
|
|
+ * fine in C, and this allows us to seperate the companion data from the
|
|
+ * functions for the companion.
|
|
+ */
|
|
+int ipts_surface_request_firmware(struct ipts_companion *companion,
|
|
+ const struct firmware **fw, const char *name,
|
|
+ struct device *device);
|
|
+
|
|
+unsigned int ipts_surface_get_quirks(struct ipts_companion *companion);
|
|
+
|
|
+static struct ipts_bin_fw_info ipts_surface_vendor_kernel = {
|
|
+ .fw_name = "vendor_kernel.bin",
|
|
+ .vendor_output = -1,
|
|
+ .num_of_data_files = 3,
|
|
+ .data_file = {
|
|
+ {
|
|
+ .io_buffer_type = IPTS_CONFIGURATION,
|
|
+ .flags = IPTS_DATA_FILE_FLAG_NONE,
|
|
+ .file_name = "config.bin",
|
|
+ },
|
|
+
|
|
+ // The following files are part of the config, but they don't
|
|
+ // exist, and the driver never requests them.
|
|
+ {
|
|
+ .io_buffer_type = IPTS_CALIBRATION,
|
|
+ .flags = IPTS_DATA_FILE_FLAG_NONE,
|
|
+ .file_name = "calib.bin",
|
|
+ },
|
|
+ {
|
|
+ .io_buffer_type = IPTS_FEATURE,
|
|
+ .flags = IPTS_DATA_FILE_FLAG_SHARE,
|
|
+ .file_name = "feature.bin",
|
|
+ },
|
|
+ },
|
|
+};
|
|
+
|
|
+static struct ipts_bin_fw_info *ipts_surface_fw_config[] = {
|
|
+ &ipts_surface_vendor_kernel,
|
|
+ NULL,
|
|
+};
|
|
+
|
|
+static struct ipts_companion ipts_surface_companion = {
|
|
+ .firmware_request = &ipts_surface_request_firmware,
|
|
+ .firmware_config = ipts_surface_fw_config,
|
|
+ .name = "ipts_surface",
|
|
+};
|
|
+
|
|
+int ipts_surface_request_firmware(struct ipts_companion *companion,
|
|
+ const struct firmware **fw, const char *name,
|
|
+ struct device *device)
|
|
+{
|
|
+ char fw_path[MAX_IOCL_FILE_PATH_LEN];
|
|
+
|
|
+ if (companion == NULL || companion->data == NULL)
|
|
+ return -ENOENT;
|
|
+
|
|
+ snprintf(fw_path, MAX_IOCL_FILE_PATH_LEN, IPTS_SURFACE_FW_PATH_FMT,
|
|
+ (const char *)companion->data, name);
|
|
+ return request_firmware(fw, fw_path, device);
|
|
+}
|
|
+
|
|
+static int ipts_surface_probe(struct platform_device *pdev)
|
|
+{
|
|
+ int r;
|
|
+ struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
|
|
+
|
|
+ if (!adev) {
|
|
+ dev_err(&pdev->dev, "Unable to find ACPI info for device\n");
|
|
+ return -ENODEV;
|
|
+ }
|
|
+
|
|
+ ipts_surface_companion.data = (void *)acpi_device_hid(adev);
|
|
+
|
|
+ r = ipts_add_companion(&ipts_surface_companion);
|
|
+ if (r) {
|
|
+ dev_warn(&pdev->dev, "Adding IPTS companion failed: %d\n", r);
|
|
+ return r;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ipts_surface_remove(struct platform_device *pdev)
|
|
+{
|
|
+ int r = ipts_remove_companion(&ipts_surface_companion);
|
|
+
|
|
+ if (r) {
|
|
+ dev_warn(&pdev->dev, "Removing IPTS companion failed: %d\n", r);
|
|
+ return r;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static const struct acpi_device_id ipts_surface_acpi_match[] = {
|
|
+ { "MSHW0076", 0 }, // Surface Book 1 / Surface Studio
|
|
+ { "MSHW0078", 0 }, // some Surface Pro 4
|
|
+ { "MSHW0079", 0 }, // Surface Laptop 1 / 2
|
|
+ { "MSHW0101", 0 }, // Surface Book 2 15"
|
|
+ { "MSHW0102", 0 }, // Surface Pro 5 / 6
|
|
+ { "MSHW0103", 0 }, // some Surface Pro 4
|
|
+ { "MSHW0137", 0 }, // Surface Book 2
|
|
+ { },
|
|
+};
|
|
+MODULE_DEVICE_TABLE(acpi, ipts_surface_acpi_match);
|
|
+
|
|
+static struct platform_driver ipts_surface_driver = {
|
|
+ .probe = ipts_surface_probe,
|
|
+ .remove = ipts_surface_remove,
|
|
+ .driver = {
|
|
+ .name = "ipts_surface",
|
|
+ .acpi_match_table = ACPI_PTR(ipts_surface_acpi_match),
|
|
+ },
|
|
+};
|
|
+module_platform_driver(ipts_surface_driver);
|
|
+
|
|
+MODULE_AUTHOR("Dorian Stoll <dorian.stoll@tmsp.io>");
|
|
+MODULE_DESCRIPTION("IPTS companion driver for Microsoft Surface");
|
|
+MODULE_LICENSE("GPL v2");
|
|
+
|
|
+IPTS_SURFACE_FIRMWARE("MSHW0076");
|
|
+IPTS_SURFACE_FIRMWARE("MSHW0078");
|
|
+IPTS_SURFACE_FIRMWARE("MSHW0079");
|
|
+IPTS_SURFACE_FIRMWARE("MSHW0101");
|
|
+IPTS_SURFACE_FIRMWARE("MSHW0102");
|
|
+IPTS_SURFACE_FIRMWARE("MSHW0103");
|
|
+IPTS_SURFACE_FIRMWARE("MSHW0137");
|
|
diff --git a/drivers/misc/ipts/dbgfs.c b/drivers/misc/ipts/dbgfs.c
|
|
new file mode 100644
|
|
index 0000000000000..fd9388de17e78
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/dbgfs.c
|
|
@@ -0,0 +1,277 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/ctype.h>
|
|
+#include <linux/debugfs.h>
|
|
+#include <linux/uaccess.h>
|
|
+
|
|
+#include "ipts.h"
|
|
+#include "msg-handler.h"
|
|
+#include "sensor-regs.h"
|
|
+#include "state.h"
|
|
+#include "../mei/mei_dev.h"
|
|
+
|
|
+static const char ipts_status_fmt[] = "ipts state : %01d\n";
|
|
+static const char ipts_debug_fmt[] = ">> tdt : fw status : %s\n"
|
|
+ ">> == Doorbell status:%x, count:%x ==\n"
|
|
+ ">> == Workqueue head:%u, tail:%u ==\n";
|
|
+
|
|
+static ssize_t ipts_dbgfs_status_read(struct file *fp, char __user *ubuf,
|
|
+ size_t cnt, loff_t *ppos)
|
|
+{
|
|
+ struct ipts_info *ipts = fp->private_data;
|
|
+ char status[256];
|
|
+ int len = 0;
|
|
+
|
|
+ if (cnt < sizeof(ipts_status_fmt) - 3)
|
|
+ return -EINVAL;
|
|
+
|
|
+ len = scnprintf(status, 256, ipts_status_fmt, ipts->state);
|
|
+ if (len < 0)
|
|
+ return -EIO;
|
|
+
|
|
+ return simple_read_from_buffer(ubuf, cnt, ppos, status, len);
|
|
+}
|
|
+
|
|
+static const struct file_operations ipts_status_dbgfs_fops = {
|
|
+ .open = simple_open,
|
|
+ .read = ipts_dbgfs_status_read,
|
|
+ .llseek = generic_file_llseek,
|
|
+};
|
|
+
|
|
+static ssize_t ipts_dbgfs_quiesce_io_cmd_write(struct file *fp,
|
|
+ const char __user *ubuf, size_t cnt, loff_t *ppos)
|
|
+{
|
|
+ struct ipts_info *ipts = fp->private_data;
|
|
+ bool result;
|
|
+ int rc;
|
|
+
|
|
+ rc = kstrtobool_from_user(ubuf, cnt, &result);
|
|
+ if (rc)
|
|
+ return rc;
|
|
+
|
|
+ if (!result)
|
|
+ return -EINVAL;
|
|
+
|
|
+ ipts_send_sensor_quiesce_io_cmd(ipts);
|
|
+ return cnt;
|
|
+}
|
|
+
|
|
+static const struct file_operations ipts_quiesce_io_cmd_dbgfs_fops = {
|
|
+ .open = simple_open,
|
|
+ .write = ipts_dbgfs_quiesce_io_cmd_write,
|
|
+ .llseek = generic_file_llseek,
|
|
+};
|
|
+
|
|
+static ssize_t ipts_dbgfs_clear_mem_window_cmd_write(struct file *fp,
|
|
+ const char __user *ubuf, size_t cnt, loff_t *ppos)
|
|
+{
|
|
+ struct ipts_info *ipts = fp->private_data;
|
|
+ bool result;
|
|
+ int rc;
|
|
+
|
|
+ rc = kstrtobool_from_user(ubuf, cnt, &result);
|
|
+ if (rc)
|
|
+ return rc;
|
|
+
|
|
+ if (!result)
|
|
+ return -EINVAL;
|
|
+
|
|
+ ipts_send_sensor_clear_mem_window_cmd(ipts);
|
|
+
|
|
+ return cnt;
|
|
+}
|
|
+
|
|
+static const struct file_operations ipts_clear_mem_window_cmd_dbgfs_fops = {
|
|
+ .open = simple_open,
|
|
+ .write = ipts_dbgfs_clear_mem_window_cmd_write,
|
|
+ .llseek = generic_file_llseek,
|
|
+};
|
|
+
|
|
+static ssize_t ipts_dbgfs_debug_read(struct file *fp, char __user *ubuf,
|
|
+ size_t cnt, loff_t *ppos)
|
|
+{
|
|
+ struct ipts_info *ipts = fp->private_data;
|
|
+ char dbg_info[1024];
|
|
+ int len = 0;
|
|
+
|
|
+ char fw_sts_str[MEI_FW_STATUS_STR_SZ];
|
|
+ u32 *db, *head, *tail;
|
|
+ struct ipts_wq_info *wq_info;
|
|
+
|
|
+ wq_info = &ipts->resource.wq_info;
|
|
+ mei_fw_status_str(ipts->cldev->bus, fw_sts_str, MEI_FW_STATUS_STR_SZ);
|
|
+
|
|
+ db = (u32 *)wq_info->db_addr;
|
|
+ head = (u32 *)wq_info->wq_head_addr;
|
|
+ tail = (u32 *)wq_info->wq_tail_addr;
|
|
+
|
|
+ if (cnt < sizeof(ipts_debug_fmt) - 3)
|
|
+ return -EINVAL;
|
|
+
|
|
+ len = scnprintf(dbg_info, 1024, ipts_debug_fmt,
|
|
+ fw_sts_str, *db, *(db+1), *head, *tail);
|
|
+
|
|
+ if (len < 0)
|
|
+ return -EIO;
|
|
+
|
|
+ return simple_read_from_buffer(ubuf, cnt, ppos, dbg_info, len);
|
|
+}
|
|
+
|
|
+static const struct file_operations ipts_debug_dbgfs_fops = {
|
|
+ .open = simple_open,
|
|
+ .read = ipts_dbgfs_debug_read,
|
|
+ .llseek = generic_file_llseek,
|
|
+};
|
|
+
|
|
+static ssize_t ipts_dbgfs_ipts_restart_write(struct file *fp,
|
|
+ const char __user *ubuf, size_t cnt, loff_t *ppos)
|
|
+{
|
|
+ struct ipts_info *ipts = fp->private_data;
|
|
+ bool result;
|
|
+ int rc;
|
|
+
|
|
+ rc = kstrtobool_from_user(ubuf, cnt, &result);
|
|
+ if (rc)
|
|
+ return rc;
|
|
+ if (!result)
|
|
+ return -EINVAL;
|
|
+
|
|
+ ipts_restart(ipts);
|
|
+ return cnt;
|
|
+}
|
|
+
|
|
+static const struct file_operations ipts_ipts_restart_dbgfs_fops = {
|
|
+ .open = simple_open,
|
|
+ .write = ipts_dbgfs_ipts_restart_write,
|
|
+ .llseek = generic_file_llseek,
|
|
+};
|
|
+
|
|
+static ssize_t ipts_dbgfs_ipts_stop_write(struct file *fp,
|
|
+ const char __user *ubuf, size_t cnt, loff_t *ppos)
|
|
+{
|
|
+ struct ipts_info *ipts = fp->private_data;
|
|
+ bool result;
|
|
+ int rc;
|
|
+
|
|
+ rc = kstrtobool_from_user(ubuf, cnt, &result);
|
|
+ if (rc)
|
|
+ return rc;
|
|
+
|
|
+ if (!result)
|
|
+ return -EINVAL;
|
|
+
|
|
+ ipts_stop(ipts);
|
|
+ return cnt;
|
|
+}
|
|
+
|
|
+static const struct file_operations ipts_ipts_stop_dbgfs_fops = {
|
|
+ .open = simple_open,
|
|
+ .write = ipts_dbgfs_ipts_stop_write,
|
|
+ .llseek = generic_file_llseek,
|
|
+};
|
|
+
|
|
+static ssize_t ipts_dbgfs_ipts_start_write(struct file *fp,
|
|
+ const char __user *ubuf, size_t cnt, loff_t *ppos)
|
|
+{
|
|
+ struct ipts_info *ipts = fp->private_data;
|
|
+ bool result;
|
|
+ int rc;
|
|
+
|
|
+ rc = kstrtobool_from_user(ubuf, cnt, &result);
|
|
+ if (rc)
|
|
+ return rc;
|
|
+
|
|
+ if (!result)
|
|
+ return -EINVAL;
|
|
+
|
|
+ ipts_start(ipts);
|
|
+ return cnt;
|
|
+}
|
|
+
|
|
+static const struct file_operations ipts_ipts_start_dbgfs_fops = {
|
|
+ .open = simple_open,
|
|
+ .write = ipts_dbgfs_ipts_start_write,
|
|
+ .llseek = generic_file_llseek,
|
|
+};
|
|
+
|
|
+void ipts_dbgfs_deregister(struct ipts_info *ipts)
|
|
+{
|
|
+ if (!ipts->dbgfs_dir)
|
|
+ return;
|
|
+
|
|
+ debugfs_remove_recursive(ipts->dbgfs_dir);
|
|
+ ipts->dbgfs_dir = NULL;
|
|
+}
|
|
+
|
|
+int ipts_dbgfs_register(struct ipts_info *ipts, const char *name)
|
|
+{
|
|
+ struct dentry *dir, *f;
|
|
+
|
|
+ dir = debugfs_create_dir(name, NULL);
|
|
+ if (!dir)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ f = debugfs_create_file("status", 0200, dir, ipts,
|
|
+ &ipts_status_dbgfs_fops);
|
|
+ if (!f) {
|
|
+ ipts_err(ipts, "debugfs status creation failed\n");
|
|
+ goto err;
|
|
+ }
|
|
+
|
|
+ f = debugfs_create_file("quiesce_io_cmd", 0200, dir, ipts,
|
|
+ &ipts_quiesce_io_cmd_dbgfs_fops);
|
|
+ if (!f) {
|
|
+ ipts_err(ipts, "debugfs quiesce_io_cmd creation failed\n");
|
|
+ goto err;
|
|
+ }
|
|
+
|
|
+ f = debugfs_create_file("clear_mem_window_cmd", 0200, dir, ipts,
|
|
+ &ipts_clear_mem_window_cmd_dbgfs_fops);
|
|
+ if (!f) {
|
|
+ ipts_err(ipts, "debugfs clear_mem_window_cmd creation failed\n");
|
|
+ goto err;
|
|
+ }
|
|
+
|
|
+ f = debugfs_create_file("debug", 0200, dir, ipts,
|
|
+ &ipts_debug_dbgfs_fops);
|
|
+ if (!f) {
|
|
+ ipts_err(ipts, "debugfs debug creation failed\n");
|
|
+ goto err;
|
|
+ }
|
|
+
|
|
+ f = debugfs_create_file("ipts_restart", 0200, dir, ipts,
|
|
+ &ipts_ipts_restart_dbgfs_fops);
|
|
+ if (!f) {
|
|
+ ipts_err(ipts, "debugfs ipts_restart creation failed\n");
|
|
+ goto err;
|
|
+ }
|
|
+
|
|
+ f = debugfs_create_file("ipts_stop", 0200, dir, ipts,
|
|
+ &ipts_ipts_stop_dbgfs_fops);
|
|
+ if (!f) {
|
|
+ ipts_err(ipts, "debugfs ipts_stop creation failed\n");
|
|
+ goto err;
|
|
+ }
|
|
+
|
|
+ f = debugfs_create_file("ipts_start", 0200, dir, ipts,
|
|
+ &ipts_ipts_start_dbgfs_fops);
|
|
+ if (!f) {
|
|
+ ipts_err(ipts, "debugfs ipts_start creation failed\n");
|
|
+ goto err;
|
|
+ }
|
|
+
|
|
+ ipts->dbgfs_dir = dir;
|
|
+
|
|
+ return 0;
|
|
+
|
|
+err:
|
|
+ ipts_dbgfs_deregister(ipts);
|
|
+
|
|
+ return -ENODEV;
|
|
+}
|
|
diff --git a/drivers/misc/ipts/gfx.c b/drivers/misc/ipts/gfx.c
|
|
new file mode 100644
|
|
index 0000000000000..b8900f514c756
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/gfx.c
|
|
@@ -0,0 +1,180 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/delay.h>
|
|
+#include <linux/kthread.h>
|
|
+
|
|
+#include "ipts.h"
|
|
+#include "msg-handler.h"
|
|
+#include "params.h"
|
|
+#include "state.h"
|
|
+#include "../mei/mei_dev.h"
|
|
+
|
|
+static void gfx_processing_complete(void *data)
|
|
+{
|
|
+ struct ipts_info *ipts = data;
|
|
+
|
|
+ if (ipts_get_state(ipts) == IPTS_STA_RAW_DATA_STARTED) {
|
|
+ schedule_work(&ipts->raw_data_work);
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ ipts_dbg(ipts, "not ready to handle gfx event\n");
|
|
+}
|
|
+
|
|
+static void notify_gfx_status(u32 status, void *data)
|
|
+{
|
|
+ struct ipts_info *ipts = data;
|
|
+
|
|
+ ipts->gfx_status = status;
|
|
+ schedule_work(&ipts->gfx_status_work);
|
|
+}
|
|
+
|
|
+static int connect_gfx(struct ipts_info *ipts)
|
|
+{
|
|
+ int ret = 0;
|
|
+ struct ipts_connect connect;
|
|
+
|
|
+ connect.client = ipts->cldev->dev.parent;
|
|
+ connect.if_version = IPTS_INTERFACE_V1;
|
|
+ connect.ipts_cb.workload_complete = gfx_processing_complete;
|
|
+ connect.ipts_cb.notify_gfx_status = notify_gfx_status;
|
|
+ connect.data = (void *)ipts;
|
|
+
|
|
+ ret = ipts_connect(&connect);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
+ // TODO: GFX version check
|
|
+ ipts->gfx_info.gfx_handle = connect.gfx_handle;
|
|
+ ipts->gfx_info.ipts_ops = connect.ipts_ops;
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static void disconnect_gfx(struct ipts_info *ipts)
|
|
+{
|
|
+ ipts_disconnect(ipts->gfx_info.gfx_handle);
|
|
+}
|
|
+
|
|
+static struct task_struct *dbg_thread;
|
|
+
|
|
+static void ipts_print_dbg_info(struct ipts_info *ipts)
|
|
+{
|
|
+ char fw_sts_str[MEI_FW_STATUS_STR_SZ];
|
|
+ u32 *db, *head, *tail;
|
|
+ struct ipts_wq_info *wq_info;
|
|
+
|
|
+ wq_info = &ipts->resource.wq_info;
|
|
+
|
|
+ mei_fw_status_str(ipts->cldev->bus, fw_sts_str, MEI_FW_STATUS_STR_SZ);
|
|
+ pr_info(">> tdt : fw status : %s\n", fw_sts_str);
|
|
+
|
|
+ db = (u32 *)wq_info->db_addr;
|
|
+ head = (u32 *)wq_info->wq_head_addr;
|
|
+ tail = (u32 *)wq_info->wq_tail_addr;
|
|
+
|
|
+ // Every time the ME has filled up the touch input buffer, and the GuC
|
|
+ // doorbell is rang, the doorbell count will increase by one
|
|
+ // The workqueue is the queue of touch events that the GuC has to
|
|
+ // process. Head is the currently processed event, while tail is
|
|
+ // the last one that is currently available. If head and tail are
|
|
+ // not equal, this can be an indicator for GuC / GPU hang.
|
|
+ pr_info(">> == Doorbell status:%x, count:%x ==\n", *db, *(db+1));
|
|
+ pr_info(">> == Workqueue head:%u, tail:%u ==\n", *head, *tail);
|
|
+}
|
|
+
|
|
+static int ipts_dbg_thread(void *data)
|
|
+{
|
|
+ struct ipts_info *ipts = (struct ipts_info *)data;
|
|
+
|
|
+ pr_info(">> start debug thread\n");
|
|
+
|
|
+ while (!kthread_should_stop()) {
|
|
+ if (ipts_get_state(ipts) != IPTS_STA_RAW_DATA_STARTED) {
|
|
+ pr_info("state is not IPTS_STA_RAW_DATA_STARTED : %d\n",
|
|
+ ipts_get_state(ipts));
|
|
+
|
|
+ msleep(5000);
|
|
+ continue;
|
|
+ }
|
|
+
|
|
+ ipts_print_dbg_info(ipts);
|
|
+ msleep(3000);
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+int ipts_open_gpu(struct ipts_info *ipts)
|
|
+{
|
|
+ int ret = 0;
|
|
+
|
|
+ ret = connect_gfx(ipts);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "cannot connect GPU\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ ret = ipts->gfx_info.ipts_ops.get_wq_info(ipts->gfx_info.gfx_handle,
|
|
+ &ipts->resource.wq_info);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "error in get_wq_info\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ if (ipts_modparams.debug_thread)
|
|
+ dbg_thread = kthread_run(
|
|
+ ipts_dbg_thread, (void *)ipts, "ipts_debug");
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+void ipts_close_gpu(struct ipts_info *ipts)
|
|
+{
|
|
+ disconnect_gfx(ipts);
|
|
+
|
|
+ if (ipts_modparams.debug_thread)
|
|
+ kthread_stop(dbg_thread);
|
|
+}
|
|
+
|
|
+struct ipts_mapbuffer *ipts_map_buffer(struct ipts_info *ipts,
|
|
+ u32 size, u32 flags)
|
|
+{
|
|
+ struct ipts_mapbuffer *buf;
|
|
+ u64 handle;
|
|
+ int ret;
|
|
+
|
|
+ buf = devm_kzalloc(&ipts->cldev->dev, sizeof(*buf), GFP_KERNEL);
|
|
+ if (!buf)
|
|
+ return NULL;
|
|
+
|
|
+ buf->size = size;
|
|
+ buf->flags = flags;
|
|
+
|
|
+ handle = ipts->gfx_info.gfx_handle;
|
|
+ ret = ipts->gfx_info.ipts_ops.map_buffer(handle, buf);
|
|
+ if (ret) {
|
|
+ devm_kfree(&ipts->cldev->dev, buf);
|
|
+ return NULL;
|
|
+ }
|
|
+
|
|
+ return buf;
|
|
+}
|
|
+
|
|
+void ipts_unmap_buffer(struct ipts_info *ipts, struct ipts_mapbuffer *buf)
|
|
+{
|
|
+ u64 handle;
|
|
+
|
|
+ if (!buf)
|
|
+ return;
|
|
+
|
|
+ handle = ipts->gfx_info.gfx_handle;
|
|
+ ipts->gfx_info.ipts_ops.unmap_buffer(handle, buf->buf_handle);
|
|
+ devm_kfree(&ipts->cldev->dev, buf);
|
|
+}
|
|
diff --git a/drivers/misc/ipts/gfx.h b/drivers/misc/ipts/gfx.h
|
|
new file mode 100644
|
|
index 0000000000000..2880e122e9f96
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/gfx.h
|
|
@@ -0,0 +1,25 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_GFX_H_
|
|
+#define _IPTS_GFX_H_
|
|
+
|
|
+#include <linux/ipts-gfx.h>
|
|
+
|
|
+#include "ipts.h"
|
|
+
|
|
+int ipts_open_gpu(struct ipts_info *ipts);
|
|
+void ipts_close_gpu(struct ipts_info *ipts);
|
|
+
|
|
+struct ipts_mapbuffer *ipts_map_buffer(struct ipts_info *ipts,
|
|
+ u32 size, u32 flags);
|
|
+
|
|
+void ipts_unmap_buffer(struct ipts_info *ipts,
|
|
+ struct ipts_mapbuffer *buf);
|
|
+
|
|
+#endif // _IPTS_GFX_H_
|
|
diff --git a/drivers/misc/ipts/hid.c b/drivers/misc/ipts/hid.c
|
|
new file mode 100644
|
|
index 0000000000000..1b7ad2a774a86
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/hid.c
|
|
@@ -0,0 +1,469 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/dmi.h>
|
|
+#include <linux/firmware.h>
|
|
+#include <linux/hid.h>
|
|
+#include <linux/ipts.h>
|
|
+#include <linux/module.h>
|
|
+#include <linux/vmalloc.h>
|
|
+
|
|
+#include "companion.h"
|
|
+#include "hid.h"
|
|
+#include "ipts.h"
|
|
+#include "msg-handler.h"
|
|
+#include "params.h"
|
|
+#include "resource.h"
|
|
+#include "sensor-regs.h"
|
|
+
|
|
+#define HID_DESC_INTEL "intel_desc.bin"
|
|
+#define HID_DESC_VENDOR "vendor_desc.bin"
|
|
+
|
|
+enum output_buffer_payload_type {
|
|
+ OUTPUT_BUFFER_PAYLOAD_ERROR = 0,
|
|
+ OUTPUT_BUFFER_PAYLOAD_HID_INPUT_REPORT,
|
|
+ OUTPUT_BUFFER_PAYLOAD_HID_FEATURE_REPORT,
|
|
+ OUTPUT_BUFFER_PAYLOAD_KERNEL_LOAD,
|
|
+ OUTPUT_BUFFER_PAYLOAD_FEEDBACK_BUFFER
|
|
+};
|
|
+
|
|
+struct kernel_output_buffer_header {
|
|
+ u16 length;
|
|
+ u8 payload_type;
|
|
+ u8 reserved1;
|
|
+ struct touch_hid_private_data hid_private_data;
|
|
+ u8 reserved2[28];
|
|
+ u8 data[0];
|
|
+};
|
|
+
|
|
+struct kernel_output_payload_error {
|
|
+ u16 severity;
|
|
+ u16 source;
|
|
+ u8 code[4];
|
|
+ char string[128];
|
|
+};
|
|
+
|
|
+static int ipts_hid_get_descriptor(struct ipts_info *ipts,
|
|
+ u8 **desc, int *size)
|
|
+{
|
|
+ u8 *buf;
|
|
+ int hid_size = 0, ret = 0;
|
|
+ const struct firmware *intel_desc = NULL;
|
|
+ const struct firmware *vendor_desc = NULL;
|
|
+
|
|
+ ret = ipts_request_firmware(&intel_desc, HID_DESC_INTEL,
|
|
+ &ipts->cldev->dev);
|
|
+ if (ret)
|
|
+ goto no_hid;
|
|
+
|
|
+ hid_size = intel_desc->size;
|
|
+
|
|
+ ret = ipts_request_firmware(&vendor_desc, HID_DESC_VENDOR,
|
|
+ &ipts->cldev->dev);
|
|
+ if (ret)
|
|
+ ipts_dbg(ipts, "error in reading HID Vendor Descriptor\n");
|
|
+ else
|
|
+ hid_size += vendor_desc->size;
|
|
+
|
|
+ ipts_dbg(ipts, "HID descriptor size = %d\n", hid_size);
|
|
+
|
|
+ buf = vmalloc(hid_size);
|
|
+ if (buf == NULL) {
|
|
+ ret = -ENOMEM;
|
|
+ goto no_mem;
|
|
+ }
|
|
+
|
|
+ memcpy(buf, intel_desc->data, intel_desc->size);
|
|
+ if (vendor_desc) {
|
|
+ memcpy(&buf[intel_desc->size], vendor_desc->data,
|
|
+ vendor_desc->size);
|
|
+ release_firmware(vendor_desc);
|
|
+ }
|
|
+ release_firmware(intel_desc);
|
|
+
|
|
+ *desc = buf;
|
|
+ *size = hid_size;
|
|
+
|
|
+ return 0;
|
|
+
|
|
+no_mem:
|
|
+ if (vendor_desc)
|
|
+ release_firmware(vendor_desc);
|
|
+
|
|
+ release_firmware(intel_desc);
|
|
+
|
|
+no_hid:
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static int ipts_hid_parse(struct hid_device *hid)
|
|
+{
|
|
+ struct ipts_info *ipts = hid->driver_data;
|
|
+ int ret = 0, size;
|
|
+ u8 *buf;
|
|
+
|
|
+ ipts_dbg(ipts, "%s() start\n", __func__);
|
|
+
|
|
+ ret = ipts_hid_get_descriptor(ipts, &buf, &size);
|
|
+ if (ret != 0) {
|
|
+ ipts_dbg(ipts, "ipts_hid_get_descriptor: %d\n",
|
|
+ ret);
|
|
+ return -EIO;
|
|
+ }
|
|
+
|
|
+ ret = hid_parse_report(hid, buf, size);
|
|
+ vfree(buf);
|
|
+ if (ret) {
|
|
+ ipts_err(ipts, "hid_parse_report error : %d\n", ret);
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ ipts->hid_desc_ready = true;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ipts_hid_start(struct hid_device *hid)
|
|
+{
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void ipts_hid_stop(struct hid_device *hid)
|
|
+{
|
|
+
|
|
+}
|
|
+
|
|
+static int ipts_hid_open(struct hid_device *hid)
|
|
+{
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void ipts_hid_close(struct hid_device *hid)
|
|
+{
|
|
+ struct ipts_info *ipts = hid->driver_data;
|
|
+
|
|
+ ipts->hid_desc_ready = false;
|
|
+}
|
|
+
|
|
+static int ipts_hid_send_hid2me_feedback(struct ipts_info *ipts,
|
|
+ u32 fb_data_type, __u8 *buf, size_t count)
|
|
+{
|
|
+ struct ipts_buffer_info *fb_buf;
|
|
+ struct touch_feedback_hdr *feedback;
|
|
+ enum ipts_state state;
|
|
+ u8 *payload;
|
|
+ int header_size;
|
|
+
|
|
+ header_size = sizeof(struct touch_feedback_hdr);
|
|
+
|
|
+ if (count > ipts->resource.hid2me_buffer_size - header_size)
|
|
+ return -EINVAL;
|
|
+
|
|
+ state = ipts_get_state(ipts);
|
|
+ if (state != IPTS_STA_RAW_DATA_STARTED &&
|
|
+ state != IPTS_STA_HID_STARTED)
|
|
+ return 0;
|
|
+
|
|
+ fb_buf = ipts_get_hid2me_buffer(ipts);
|
|
+ feedback = (struct touch_feedback_hdr *)fb_buf->addr;
|
|
+ payload = fb_buf->addr + header_size;
|
|
+ memset(feedback, 0, header_size);
|
|
+
|
|
+ feedback->feedback_data_type = fb_data_type;
|
|
+ feedback->feedback_cmd_type = TOUCH_FEEDBACK_CMD_TYPE_NONE;
|
|
+ feedback->payload_size_bytes = count;
|
|
+ feedback->buffer_id = TOUCH_HID_2_ME_BUFFER_ID;
|
|
+ feedback->protocol_ver = 0;
|
|
+ feedback->reserved[0] = 0xAC;
|
|
+
|
|
+ // copy payload
|
|
+ memcpy(payload, buf, count);
|
|
+
|
|
+ ipts_send_feedback(ipts, TOUCH_HID_2_ME_BUFFER_ID, 0);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ipts_hid_raw_request(struct hid_device *hid,
|
|
+ unsigned char report_number, __u8 *buf, size_t count,
|
|
+ unsigned char report_type, int reqtype)
|
|
+{
|
|
+ struct ipts_info *ipts = hid->driver_data;
|
|
+ u32 fb_data_type;
|
|
+
|
|
+ ipts_dbg(ipts, "hid raw request => report %d, request %d\n",
|
|
+ (int)report_type, reqtype);
|
|
+
|
|
+ if (report_type != HID_FEATURE_REPORT)
|
|
+ return 0;
|
|
+
|
|
+ switch (reqtype) {
|
|
+ case HID_REQ_GET_REPORT:
|
|
+ fb_data_type = TOUCH_FEEDBACK_DATA_TYPE_GET_FEATURES;
|
|
+ break;
|
|
+ case HID_REQ_SET_REPORT:
|
|
+ fb_data_type = TOUCH_FEEDBACK_DATA_TYPE_SET_FEATURES;
|
|
+ break;
|
|
+ default:
|
|
+ ipts_err(ipts, "raw request not supprted: %d\n", reqtype);
|
|
+ return -EIO;
|
|
+ }
|
|
+
|
|
+ return ipts_hid_send_hid2me_feedback(ipts, fb_data_type, buf, count);
|
|
+}
|
|
+
|
|
+static int ipts_hid_output_report(struct hid_device *hid,
|
|
+ __u8 *buf, size_t count)
|
|
+{
|
|
+ struct ipts_info *ipts = hid->driver_data;
|
|
+ u32 fb_data_type;
|
|
+
|
|
+ ipts_dbg(ipts, "hid output report\n");
|
|
+
|
|
+ fb_data_type = TOUCH_FEEDBACK_DATA_TYPE_OUTPUT_REPORT;
|
|
+
|
|
+ return ipts_hid_send_hid2me_feedback(ipts, fb_data_type, buf, count);
|
|
+}
|
|
+
|
|
+static struct hid_ll_driver ipts_hid_ll_driver = {
|
|
+ .parse = ipts_hid_parse,
|
|
+ .start = ipts_hid_start,
|
|
+ .stop = ipts_hid_stop,
|
|
+ .open = ipts_hid_open,
|
|
+ .close = ipts_hid_close,
|
|
+ .raw_request = ipts_hid_raw_request,
|
|
+ .output_report = ipts_hid_output_report,
|
|
+};
|
|
+
|
|
+int ipts_hid_init(struct ipts_info *ipts)
|
|
+{
|
|
+ int ret = 0;
|
|
+ struct hid_device *hid;
|
|
+
|
|
+ hid = hid_allocate_device();
|
|
+ if (IS_ERR(hid))
|
|
+ return PTR_ERR(hid);
|
|
+
|
|
+ hid->driver_data = ipts;
|
|
+ hid->ll_driver = &ipts_hid_ll_driver;
|
|
+ hid->dev.parent = &ipts->cldev->dev;
|
|
+ hid->bus = BUS_MEI;
|
|
+ hid->version = ipts->device_info.fw_rev;
|
|
+ hid->vendor = ipts->device_info.vendor_id;
|
|
+ hid->product = ipts->device_info.device_id;
|
|
+
|
|
+ snprintf(hid->phys, sizeof(hid->phys), "heci3");
|
|
+ snprintf(hid->name, sizeof(hid->name),
|
|
+ "ipts %04hX:%04hX", hid->vendor, hid->product);
|
|
+
|
|
+ ret = hid_add_device(hid);
|
|
+ if (ret) {
|
|
+ if (ret != -ENODEV)
|
|
+ ipts_err(ipts, "can't add hid device: %d\n", ret);
|
|
+
|
|
+ hid_destroy_device(hid);
|
|
+
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ ipts->hid = hid;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+void ipts_hid_release(struct ipts_info *ipts)
|
|
+{
|
|
+ if (!ipts->hid)
|
|
+ return;
|
|
+
|
|
+ hid_destroy_device(ipts->hid);
|
|
+}
|
|
+
|
|
+int ipts_handle_hid_data(struct ipts_info *ipts,
|
|
+ struct touch_sensor_hid_ready_for_data_rsp_data *hid_rsp)
|
|
+{
|
|
+ struct touch_raw_data_hdr *raw_header;
|
|
+ struct ipts_buffer_info *buffer_info;
|
|
+ struct touch_feedback_hdr *feedback;
|
|
+ u8 *raw_data;
|
|
+ int touch_data_buffer_index;
|
|
+ int transaction_id;
|
|
+ int ret = 0;
|
|
+
|
|
+ touch_data_buffer_index = (int)hid_rsp->touch_data_buffer_index;
|
|
+ buffer_info = ipts_get_touch_data_buffer_hid(ipts);
|
|
+ raw_header = (struct touch_raw_data_hdr *)buffer_info->addr;
|
|
+ transaction_id = raw_header->hid_private_data.transaction_id;
|
|
+ raw_data = (u8 *)raw_header + sizeof(struct touch_raw_data_hdr);
|
|
+
|
|
+ switch (raw_header->data_type) {
|
|
+ case TOUCH_RAW_DATA_TYPE_HID_REPORT: {
|
|
+ if (raw_header->raw_data_size_bytes > HID_MAX_BUFFER_SIZE) {
|
|
+ ipts_err(ipts, "input report too large (%u bytes), skipping",
|
|
+ raw_header->raw_data_size_bytes);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ memcpy(ipts->hid_input_report, raw_data,
|
|
+ raw_header->raw_data_size_bytes);
|
|
+
|
|
+ ret = hid_input_report(ipts->hid, HID_INPUT_REPORT,
|
|
+ (u8 *)ipts->hid_input_report,
|
|
+ raw_header->raw_data_size_bytes, 1);
|
|
+ if (ret)
|
|
+ ipts_err(ipts, "error in hid_input_report: %d\n", ret);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ case TOUCH_RAW_DATA_TYPE_GET_FEATURES: {
|
|
+ // TODO: implement together with "get feature ioctl"
|
|
+ break;
|
|
+ }
|
|
+ case TOUCH_RAW_DATA_TYPE_ERROR: {
|
|
+ struct touch_error *touch_err = (struct touch_error *)raw_data;
|
|
+
|
|
+ ipts_err(ipts, "error type: %d, me error: %x, err reg: %x\n",
|
|
+ touch_err->touch_error_type,
|
|
+ touch_err->touch_me_fw_error.value,
|
|
+ touch_err->touch_error_register.reg_value);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ default:
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ // send feedback data for HID mode
|
|
+ buffer_info = ipts_get_feedback_buffer(ipts, touch_data_buffer_index);
|
|
+ feedback = (struct touch_feedback_hdr *)buffer_info->addr;
|
|
+ memset(feedback, 0, sizeof(struct touch_feedback_hdr));
|
|
+ feedback->feedback_cmd_type = TOUCH_FEEDBACK_CMD_TYPE_NONE;
|
|
+ feedback->payload_size_bytes = 0;
|
|
+ feedback->buffer_id = touch_data_buffer_index;
|
|
+ feedback->protocol_ver = 0;
|
|
+ feedback->reserved[0] = 0xAC;
|
|
+
|
|
+ ret = ipts_send_feedback(ipts, touch_data_buffer_index, transaction_id);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static int handle_outputs(struct ipts_info *ipts, int parallel_idx)
|
|
+{
|
|
+ struct kernel_output_buffer_header *out_buf_hdr;
|
|
+ struct ipts_buffer_info *output_buf;
|
|
+ u8 *input_report, *payload;
|
|
+ u8 tr_id;
|
|
+ int i, payload_size, header_size;
|
|
+ bool send_feedback = false;
|
|
+
|
|
+ header_size = sizeof(struct kernel_output_buffer_header);
|
|
+ output_buf = ipts_get_output_buffers_by_parallel_id(ipts,
|
|
+ parallel_idx);
|
|
+
|
|
+ for (i = 0; i < ipts->resource.num_of_outputs; i++) {
|
|
+ out_buf_hdr = (struct kernel_output_buffer_header *)
|
|
+ output_buf[i].addr;
|
|
+
|
|
+ if (out_buf_hdr->length < header_size)
|
|
+ continue;
|
|
+
|
|
+ tr_id = *(u8 *)&out_buf_hdr->hid_private_data.transaction_id;
|
|
+ send_feedback = true;
|
|
+
|
|
+ payload_size = out_buf_hdr->length - header_size;
|
|
+ payload = out_buf_hdr->data;
|
|
+
|
|
+ switch (out_buf_hdr->payload_type) {
|
|
+ case OUTPUT_BUFFER_PAYLOAD_HID_INPUT_REPORT: {
|
|
+ input_report = ipts->hid_input_report;
|
|
+ memcpy(input_report, payload, payload_size);
|
|
+
|
|
+ hid_input_report(ipts->hid, HID_INPUT_REPORT,
|
|
+ input_report, payload_size, 1);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ case OUTPUT_BUFFER_PAYLOAD_HID_FEATURE_REPORT: {
|
|
+ ipts_dbg(ipts, "output hid feature report\n");
|
|
+ break;
|
|
+ }
|
|
+ case OUTPUT_BUFFER_PAYLOAD_KERNEL_LOAD: {
|
|
+ ipts_dbg(ipts, "output kernel load\n");
|
|
+ break;
|
|
+ }
|
|
+ case OUTPUT_BUFFER_PAYLOAD_FEEDBACK_BUFFER: {
|
|
+ // Ignored
|
|
+ break;
|
|
+ }
|
|
+ case OUTPUT_BUFFER_PAYLOAD_ERROR: {
|
|
+ struct kernel_output_payload_error *err_payload;
|
|
+
|
|
+ if (payload_size == 0)
|
|
+ break;
|
|
+
|
|
+ err_payload = (struct kernel_output_payload_error *)
|
|
+ payload;
|
|
+
|
|
+ ipts_err(ipts, "severity: %d, source: %d ",
|
|
+ err_payload->severity,
|
|
+ err_payload->source);
|
|
+ ipts_err(ipts, "code : %d:%d:%d:%d\nstring %s\n",
|
|
+ err_payload->code[0],
|
|
+ err_payload->code[1],
|
|
+ err_payload->code[2],
|
|
+ err_payload->code[3],
|
|
+ err_payload->string);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ default:
|
|
+ ipts_err(ipts, "invalid output buffer payload\n");
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+
|
|
+
|
|
+
|
|
+ if (send_feedback)
|
|
+ return ipts_send_feedback(ipts, parallel_idx, tr_id);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int handle_output_buffers(struct ipts_info *ipts,
|
|
+ int cur_idx, int end_idx)
|
|
+{
|
|
+ int max_num_of_buffers = ipts_get_num_of_parallel_buffers(ipts);
|
|
+
|
|
+ do {
|
|
+ cur_idx++; // cur_idx has last completed so starts with +1
|
|
+ cur_idx %= max_num_of_buffers;
|
|
+ handle_outputs(ipts, cur_idx);
|
|
+ } while (cur_idx != end_idx);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+int ipts_handle_processed_data(struct ipts_info *ipts)
|
|
+{
|
|
+ int ret = 0;
|
|
+ int current_buffer_idx;
|
|
+ int last_buffer_idx;
|
|
+
|
|
+ current_buffer_idx = *ipts->last_submitted_id;
|
|
+ last_buffer_idx = ipts->last_buffer_completed;
|
|
+
|
|
+ if (current_buffer_idx == last_buffer_idx)
|
|
+ return 0;
|
|
+
|
|
+ ipts->last_buffer_completed = current_buffer_idx;
|
|
+ handle_output_buffers(ipts, last_buffer_idx, current_buffer_idx);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
diff --git a/drivers/misc/ipts/hid.h b/drivers/misc/ipts/hid.h
|
|
new file mode 100644
|
|
index 0000000000000..c943979e01983
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/hid.h
|
|
@@ -0,0 +1,21 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_HID_H_
|
|
+#define _IPTS_HID_H_
|
|
+
|
|
+#include "ipts.h"
|
|
+
|
|
+#define BUS_MEI 0x44
|
|
+
|
|
+int ipts_hid_init(struct ipts_info *ipts);
|
|
+void ipts_hid_release(struct ipts_info *ipts);
|
|
+int ipts_handle_hid_data(struct ipts_info *ipts,
|
|
+ struct touch_sensor_hid_ready_for_data_rsp_data *hid_rsp);
|
|
+
|
|
+#endif // _IPTS_HID_H_
|
|
diff --git a/drivers/misc/ipts/ipts.c b/drivers/misc/ipts/ipts.c
|
|
new file mode 100644
|
|
index 0000000000000..dfafabf8dd949
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/ipts.c
|
|
@@ -0,0 +1,62 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/device.h>
|
|
+#include <stdarg.h>
|
|
+
|
|
+#include "ipts.h"
|
|
+#include "params.h"
|
|
+
|
|
+static void ipts_printk(const char *level, const struct device *dev,
|
|
+ struct va_format *vaf)
|
|
+{
|
|
+ if (dev) {
|
|
+ dev_printk_emit(level[1] - '0', dev, "%s %s: %pV",
|
|
+ dev_driver_string(dev), dev_name(dev), vaf);
|
|
+ } else {
|
|
+ // checkpatch wants this to be prefixed with KERN_*, but
|
|
+ // since the level is passed as a parameter, ignore it
|
|
+ printk("%s(NULL device *): %pV", level, vaf);
|
|
+ }
|
|
+}
|
|
+
|
|
+void ipts_info(struct ipts_info *ipts, const char *fmt, ...)
|
|
+{
|
|
+ va_list args;
|
|
+ struct va_format vaf;
|
|
+
|
|
+ if (!ipts_modparams.debug)
|
|
+ return;
|
|
+
|
|
+ va_start(args, fmt);
|
|
+
|
|
+ vaf.fmt = fmt;
|
|
+ vaf.va = &args;
|
|
+
|
|
+ ipts_printk(KERN_INFO, &ipts->cldev->dev, &vaf);
|
|
+
|
|
+ va_end(args);
|
|
+}
|
|
+
|
|
+void ipts_dbg(struct ipts_info *ipts, const char *fmt, ...)
|
|
+{
|
|
+ va_list args;
|
|
+ struct va_format vaf;
|
|
+
|
|
+ if (!ipts_modparams.debug)
|
|
+ return;
|
|
+
|
|
+ va_start(args, fmt);
|
|
+
|
|
+ vaf.fmt = fmt;
|
|
+ vaf.va = &args;
|
|
+
|
|
+ ipts_printk(KERN_DEBUG, &ipts->cldev->dev, &vaf);
|
|
+
|
|
+ va_end(args);
|
|
+}
|
|
diff --git a/drivers/misc/ipts/ipts.h b/drivers/misc/ipts/ipts.h
|
|
new file mode 100644
|
|
index 0000000000000..32eb3ffd68a3b
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/ipts.h
|
|
@@ -0,0 +1,172 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_H_
|
|
+#define _IPTS_H_
|
|
+
|
|
+#include <linux/hid.h>
|
|
+#include <linux/ipts-binary.h>
|
|
+#include <linux/ipts-gfx.h>
|
|
+#include <linux/mei_cl_bus.h>
|
|
+#include <linux/types.h>
|
|
+
|
|
+#include "mei-msgs.h"
|
|
+#include "state.h"
|
|
+
|
|
+#define HID_PARALLEL_DATA_BUFFERS TOUCH_SENSOR_MAX_DATA_BUFFERS
|
|
+
|
|
+#define IPTS_MAX_RETRY 3
|
|
+
|
|
+struct ipts_buffer_info {
|
|
+ char *addr;
|
|
+ dma_addr_t dma_addr;
|
|
+};
|
|
+
|
|
+struct ipts_gfx_info {
|
|
+ u64 gfx_handle;
|
|
+ struct ipts_ops ipts_ops;
|
|
+};
|
|
+
|
|
+struct ipts_resource {
|
|
+ // ME & GFX resource
|
|
+ struct ipts_buffer_info touch_data_buffer_raw
|
|
+ [HID_PARALLEL_DATA_BUFFERS];
|
|
+ struct ipts_buffer_info touch_data_buffer_hid;
|
|
+ struct ipts_buffer_info feedback_buffer[HID_PARALLEL_DATA_BUFFERS];
|
|
+ struct ipts_buffer_info hid2me_buffer;
|
|
+ u32 hid2me_buffer_size;
|
|
+
|
|
+ u8 wq_item_size;
|
|
+ struct ipts_wq_info wq_info;
|
|
+
|
|
+ // ME2HID buffer
|
|
+ char *me2hid_buffer;
|
|
+
|
|
+ // GFX specific resource
|
|
+ struct ipts_buffer_info raw_data_mode_output_buffer
|
|
+ [HID_PARALLEL_DATA_BUFFERS][MAX_NUM_OUTPUT_BUFFERS];
|
|
+
|
|
+ int num_of_outputs;
|
|
+ bool default_resource_ready;
|
|
+ bool raw_data_resource_ready;
|
|
+};
|
|
+
|
|
+struct ipts_info {
|
|
+ struct mei_cl_device *cldev;
|
|
+ struct hid_device *hid;
|
|
+
|
|
+ struct work_struct init_work;
|
|
+ struct work_struct raw_data_work;
|
|
+ struct work_struct gfx_status_work;
|
|
+
|
|
+ struct task_struct *event_loop;
|
|
+
|
|
+#if IS_ENABLED(CONFIG_DEBUG_FS)
|
|
+ struct dentry *dbgfs_dir;
|
|
+#endif
|
|
+
|
|
+ enum ipts_state state;
|
|
+
|
|
+ enum touch_sensor_mode sensor_mode;
|
|
+ struct touch_sensor_get_device_info_rsp_data device_info;
|
|
+ struct ipts_resource resource;
|
|
+ u8 hid_input_report[HID_MAX_BUFFER_SIZE];
|
|
+ int num_of_parallel_data_buffers;
|
|
+ bool hid_desc_ready;
|
|
+
|
|
+ int current_buffer_index;
|
|
+ int last_buffer_completed;
|
|
+ int *last_submitted_id;
|
|
+
|
|
+ struct ipts_gfx_info gfx_info;
|
|
+ u64 kernel_handle;
|
|
+ int gfx_status;
|
|
+ bool display_status;
|
|
+
|
|
+ bool restart;
|
|
+};
|
|
+
|
|
+#if IS_ENABLED(CONFIG_DEBUG_FS)
|
|
+int ipts_dbgfs_register(struct ipts_info *ipts, const char *name);
|
|
+void ipts_dbgfs_deregister(struct ipts_info *ipts);
|
|
+#else
|
|
+static int ipts_dbgfs_register(struct ipts_info *ipts, const char *name);
|
|
+static void ipts_dbgfs_deregister(struct ipts_info *ipts);
|
|
+#endif
|
|
+
|
|
+void ipts_info(struct ipts_info *ipts, const char *fmt, ...);
|
|
+void ipts_dbg(struct ipts_info *ipts, const char *fmt, ...);
|
|
+
|
|
+// Because ipts_err is unconditional, this can stay a macro for now
|
|
+#define ipts_err(ipts, format, arg...) \
|
|
+ dev_err(&ipts->cldev->dev, format, ##arg)
|
|
+
|
|
+/*
|
|
+ * Inline functions
|
|
+ */
|
|
+static inline void ipts_set_state(struct ipts_info *ipts,
|
|
+ enum ipts_state state)
|
|
+{
|
|
+ ipts->state = state;
|
|
+}
|
|
+
|
|
+static inline enum ipts_state ipts_get_state(const struct ipts_info *ipts)
|
|
+{
|
|
+ return ipts->state;
|
|
+}
|
|
+
|
|
+static inline bool ipts_is_default_resource_ready(const struct ipts_info *ipts)
|
|
+{
|
|
+ return ipts->resource.default_resource_ready;
|
|
+}
|
|
+
|
|
+static inline bool ipts_is_raw_data_resource_ready(const struct ipts_info *ipts)
|
|
+{
|
|
+ return ipts->resource.raw_data_resource_ready;
|
|
+}
|
|
+
|
|
+static inline struct ipts_buffer_info *ipts_get_feedback_buffer(
|
|
+ struct ipts_info *ipts, int buffer_idx)
|
|
+{
|
|
+ return &ipts->resource.feedback_buffer[buffer_idx];
|
|
+}
|
|
+
|
|
+static inline struct ipts_buffer_info *ipts_get_touch_data_buffer_hid(
|
|
+ struct ipts_info *ipts)
|
|
+{
|
|
+ return &ipts->resource.touch_data_buffer_hid;
|
|
+}
|
|
+
|
|
+static inline struct ipts_buffer_info *ipts_get_output_buffers_by_parallel_id(
|
|
+ struct ipts_info *ipts, int parallel_idx)
|
|
+{
|
|
+ return &ipts->resource.raw_data_mode_output_buffer[parallel_idx][0];
|
|
+}
|
|
+
|
|
+static inline struct ipts_buffer_info *ipts_get_hid2me_buffer(
|
|
+ struct ipts_info *ipts)
|
|
+{
|
|
+ return &ipts->resource.hid2me_buffer;
|
|
+}
|
|
+
|
|
+static inline void ipts_set_wq_item_size(struct ipts_info *ipts, u8 size)
|
|
+{
|
|
+ ipts->resource.wq_item_size = size;
|
|
+}
|
|
+
|
|
+static inline u8 ipts_get_wq_item_size(const struct ipts_info *ipts)
|
|
+{
|
|
+ return ipts->resource.wq_item_size;
|
|
+}
|
|
+
|
|
+static inline int ipts_get_num_of_parallel_buffers(const struct ipts_info *ipts)
|
|
+{
|
|
+ return ipts->num_of_parallel_data_buffers;
|
|
+}
|
|
+
|
|
+#endif // _IPTS_H_
|
|
diff --git a/drivers/misc/ipts/kernel.c b/drivers/misc/ipts/kernel.c
|
|
new file mode 100644
|
|
index 0000000000000..a2c43228e2c7d
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/kernel.c
|
|
@@ -0,0 +1,1047 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/module.h>
|
|
+#include <linux/firmware.h>
|
|
+#include <linux/ipts.h>
|
|
+#include <linux/ipts-binary.h>
|
|
+#include <linux/vmalloc.h>
|
|
+
|
|
+#include "companion.h"
|
|
+#include "gfx.h"
|
|
+#include "ipts.h"
|
|
+#include "msg-handler.h"
|
|
+#include "resource.h"
|
|
+#include "state.h"
|
|
+
|
|
+#define BDW_SURFACE_BASE_ADDRESS 0x6101000e
|
|
+#define SURFACE_STATE_OFFSET_WORD 4
|
|
+#define SBA_OFFSET_BYTES 16384
|
|
+#define LASTSUBMITID_DEFAULT_VALUE -1
|
|
+
|
|
+#define IPTS_INPUT_ON ((u32)1 << IPTS_INPUT)
|
|
+#define IPTS_OUTPUT_ON ((u32)1 << IPTS_OUTPUT)
|
|
+#define IPTS_CONFIGURATION_ON ((u32)1 << IPTS_CONFIGURATION)
|
|
+#define IPTS_CALIBRATION_ON ((u32)1 << IPTS_CALIBRATION)
|
|
+#define IPTS_FEATURE_ON ((u32)1 << IPTS_FEATURE)
|
|
+
|
|
+// OpenCL kernel
|
|
+struct bin_workload {
|
|
+ int cmdbuf_index;
|
|
+ int iobuf_input;
|
|
+ int iobuf_output[MAX_NUM_OUTPUT_BUFFERS];
|
|
+};
|
|
+
|
|
+struct bin_buffer {
|
|
+ unsigned int handle;
|
|
+ struct ipts_mapbuffer *buf;
|
|
+
|
|
+ // only releasing vendor kernel unmaps output buffers
|
|
+ bool no_unmap;
|
|
+};
|
|
+
|
|
+struct bin_alloc_info {
|
|
+ struct bin_buffer *buffs;
|
|
+ int num_of_allocations;
|
|
+ int num_of_outputs;
|
|
+
|
|
+ int num_of_buffers;
|
|
+};
|
|
+
|
|
+struct bin_guc_wq_item {
|
|
+ unsigned int batch_offset;
|
|
+ unsigned int size;
|
|
+ char data[];
|
|
+};
|
|
+
|
|
+struct bin_kernel_info {
|
|
+ struct bin_workload *wl;
|
|
+ struct bin_alloc_info *alloc_info;
|
|
+ struct bin_guc_wq_item *guc_wq_item;
|
|
+ struct ipts_bin_bufid_patch bufid_patch;
|
|
+
|
|
+ // 1: vendor, 0: postprocessing
|
|
+ bool is_vendor;
|
|
+};
|
|
+
|
|
+struct bin_kernel_list {
|
|
+ struct ipts_mapbuffer *bufid_buf;
|
|
+ int num_of_kernels;
|
|
+ struct bin_kernel_info kernels[];
|
|
+};
|
|
+
|
|
+struct bin_parse_info {
|
|
+ u8 *data;
|
|
+ int size;
|
|
+ int parsed;
|
|
+
|
|
+ struct ipts_bin_fw_info *fw_info;
|
|
+
|
|
+ // only used by postprocessing
|
|
+ struct bin_kernel_info *vendor_kernel;
|
|
+
|
|
+ // interested vendor output index
|
|
+ u32 interested_vendor_output;
|
|
+};
|
|
+
|
|
+static int bin_read_fw(struct ipts_info *ipts, const char *fw_name,
|
|
+ u8 *data, int size)
|
|
+{
|
|
+ const struct firmware *fw = NULL;
|
|
+ int ret = 0;
|
|
+
|
|
+ ret = ipts_request_firmware(&fw, fw_name, &ipts->cldev->dev);
|
|
+ if (ret) {
|
|
+ ipts_err(ipts, "cannot read fw %s\n", fw_name);
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ if (fw->size > size) {
|
|
+ ipts_dbg(ipts, "too small buffer to contain fw data\n");
|
|
+ ret = -EINVAL;
|
|
+ } else {
|
|
+ memcpy(data, fw->data, fw->size);
|
|
+ }
|
|
+
|
|
+ release_firmware(fw);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+
|
|
+static struct ipts_bin_data_file_info *bin_get_data_file_info(
|
|
+ struct ipts_bin_fw_info *fw_info, u32 io_buffer_type)
|
|
+{
|
|
+ int i;
|
|
+
|
|
+ for (i = 0; i < fw_info->num_of_data_files; i++) {
|
|
+ if (fw_info->data_file[i].io_buffer_type == io_buffer_type)
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ if (i == fw_info->num_of_data_files)
|
|
+ return NULL;
|
|
+
|
|
+ return &fw_info->data_file[i];
|
|
+}
|
|
+
|
|
+static inline bool is_shared_data(
|
|
+ const struct ipts_bin_data_file_info *data_file)
|
|
+{
|
|
+ if (!data_file)
|
|
+ return false;
|
|
+
|
|
+ return (!!(data_file->flags & IPTS_DATA_FILE_FLAG_SHARE));
|
|
+}
|
|
+
|
|
+static inline bool is_alloc_cont_data(
|
|
+ const struct ipts_bin_data_file_info *data_file)
|
|
+{
|
|
+ if (!data_file)
|
|
+ return false;
|
|
+
|
|
+ return (!!(data_file->flags & IPTS_DATA_FILE_FLAG_ALLOC_CONTIGUOUS));
|
|
+}
|
|
+
|
|
+static inline bool is_parsing_vendor_kernel(
|
|
+ const struct bin_parse_info *parse_info)
|
|
+{
|
|
+ // vendor_kernel == null while loading itself
|
|
+ return parse_info->vendor_kernel == NULL;
|
|
+}
|
|
+
|
|
+static int bin_read_allocation_list(struct ipts_info *ipts,
|
|
+ struct bin_parse_info *parse_info,
|
|
+ struct bin_alloc_info *alloc_info)
|
|
+{
|
|
+ struct ipts_bin_alloc_list *alloc_list;
|
|
+ int aidx, pidx, num_of_parallels, bidx, num_of_buffers;
|
|
+ int parsed, size;
|
|
+
|
|
+ parsed = parse_info->parsed;
|
|
+ size = parse_info->size;
|
|
+
|
|
+ alloc_list = (struct ipts_bin_alloc_list *)&parse_info->data[parsed];
|
|
+
|
|
+ // validation check
|
|
+ if (sizeof(alloc_list->num) > size - parsed)
|
|
+ return -EINVAL;
|
|
+
|
|
+ // read the number of aloocations
|
|
+ parsed += sizeof(alloc_list->num);
|
|
+
|
|
+ // validation check
|
|
+ if (sizeof(alloc_list->alloc[0]) * alloc_list->num > size - parsed)
|
|
+ return -EINVAL;
|
|
+
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+ num_of_buffers = num_of_parallels * alloc_list->num + num_of_parallels;
|
|
+ alloc_info->buffs = vmalloc(sizeof(struct bin_buffer) *
|
|
+ num_of_buffers);
|
|
+
|
|
+ if (alloc_info->buffs == NULL)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ memset(alloc_info->buffs, 0, sizeof(struct bin_buffer) *
|
|
+ num_of_buffers);
|
|
+
|
|
+ for (aidx = 0; aidx < alloc_list->num; aidx++) {
|
|
+ for (pidx = 0; pidx < num_of_parallels; pidx++) {
|
|
+ bidx = aidx + (pidx * alloc_list->num);
|
|
+ alloc_info->buffs[bidx].handle =
|
|
+ alloc_list->alloc[aidx].handle;
|
|
+ }
|
|
+
|
|
+ parsed += sizeof(alloc_list->alloc[0]);
|
|
+ }
|
|
+
|
|
+ parse_info->parsed = parsed;
|
|
+ alloc_info->num_of_allocations = alloc_list->num;
|
|
+ alloc_info->num_of_buffers = num_of_buffers;
|
|
+
|
|
+ ipts_dbg(ipts, "number of allocations = %d, buffers = %d\n",
|
|
+ alloc_info->num_of_allocations,
|
|
+ alloc_info->num_of_buffers);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void patch_SBA(u32 *buf_addr, u64 gpu_addr, int size)
|
|
+{
|
|
+ u64 *stateBase;
|
|
+ u64 SBA;
|
|
+ u32 inst;
|
|
+ int i;
|
|
+
|
|
+ SBA = gpu_addr + SBA_OFFSET_BYTES;
|
|
+
|
|
+ for (i = 0; i < size / 4; i++) {
|
|
+ inst = buf_addr[i];
|
|
+ if (inst == BDW_SURFACE_BASE_ADDRESS) {
|
|
+ stateBase = (u64 *)&buf_addr
|
|
+ [i + SURFACE_STATE_OFFSET_WORD];
|
|
+ *stateBase |= SBA;
|
|
+ *stateBase |= 0x01; // enable
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+}
|
|
+
|
|
+static int bin_read_cmd_buffer(struct ipts_info *ipts,
|
|
+ struct bin_parse_info *parse_info,
|
|
+ struct bin_alloc_info *alloc_info, struct bin_workload *wl)
|
|
+{
|
|
+ struct ipts_bin_cmdbuf *cmd;
|
|
+ struct ipts_mapbuffer *buf;
|
|
+ int cidx, size, parsed, pidx, num_of_parallels;
|
|
+
|
|
+ size = parse_info->size;
|
|
+ parsed = parse_info->parsed;
|
|
+
|
|
+ cmd = (struct ipts_bin_cmdbuf *)&parse_info->data[parsed];
|
|
+
|
|
+ if (sizeof(cmd->size) > size - parsed)
|
|
+ return -EINVAL;
|
|
+
|
|
+ parsed += sizeof(cmd->size);
|
|
+ if (cmd->size > size - parsed)
|
|
+ return -EINVAL;
|
|
+
|
|
+ ipts_dbg(ipts, "cmd buf size = %d\n", cmd->size);
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+
|
|
+ // command buffers are located after the other allocations
|
|
+ cidx = num_of_parallels * alloc_info->num_of_allocations;
|
|
+ for (pidx = 0; pidx < num_of_parallels; pidx++) {
|
|
+ buf = ipts_map_buffer(ipts, cmd->size, 0);
|
|
+
|
|
+ if (buf == NULL)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ ipts_dbg(ipts, "cmd_idx[%d] = %d, g:0x%p, c:0x%p\n", pidx,
|
|
+ cidx, buf->gfx_addr, buf->cpu_addr);
|
|
+
|
|
+ memcpy((void *)buf->cpu_addr, &(cmd->data[0]), cmd->size);
|
|
+ patch_SBA(buf->cpu_addr, (u64)buf->gfx_addr, cmd->size);
|
|
+
|
|
+ alloc_info->buffs[cidx].buf = buf;
|
|
+ wl[pidx].cmdbuf_index = cidx;
|
|
+ cidx++;
|
|
+ }
|
|
+
|
|
+ parsed += cmd->size;
|
|
+ parse_info->parsed = parsed;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int bin_find_alloc(struct ipts_info *ipts,
|
|
+ struct bin_alloc_info *alloc_info, u32 handle)
|
|
+{
|
|
+ int i;
|
|
+
|
|
+ for (i = 0; i < alloc_info->num_of_allocations; i++) {
|
|
+ if (alloc_info->buffs[i].handle == handle)
|
|
+ return i;
|
|
+ }
|
|
+
|
|
+ return -1;
|
|
+}
|
|
+
|
|
+static struct ipts_mapbuffer *bin_get_vendor_kernel_output(
|
|
+ struct bin_parse_info *parse_info, int pidx)
|
|
+{
|
|
+ struct bin_kernel_info *vendor = parse_info->vendor_kernel;
|
|
+ struct bin_alloc_info *alloc_info;
|
|
+ int bidx, vidx;
|
|
+
|
|
+ alloc_info = vendor->alloc_info;
|
|
+ vidx = parse_info->interested_vendor_output;
|
|
+
|
|
+ if (vidx >= alloc_info->num_of_outputs)
|
|
+ return NULL;
|
|
+
|
|
+ bidx = vendor->wl[pidx].iobuf_output[vidx];
|
|
+
|
|
+ return alloc_info->buffs[bidx].buf;
|
|
+}
|
|
+
|
|
+static int bin_read_res_list(struct ipts_info *ipts,
|
|
+ struct bin_parse_info *parse_info,
|
|
+ struct bin_alloc_info *alloc_info, struct bin_workload *wl)
|
|
+{
|
|
+ struct ipts_bin_res_list *res_list;
|
|
+ struct ipts_bin_res *res;
|
|
+ struct ipts_mapbuffer *buf;
|
|
+ struct ipts_bin_data_file_info *data_file;
|
|
+ u8 *bin_data;
|
|
+ int i, size, parsed, pidx, num_of_parallels, oidx = -1;
|
|
+ int bidx, num_of_alloc;
|
|
+ u32 buf_size, flags, io_buf_type;
|
|
+ bool initialize;
|
|
+
|
|
+ parsed = parse_info->parsed;
|
|
+ size = parse_info->size;
|
|
+ bin_data = parse_info->data;
|
|
+
|
|
+ res_list = (struct ipts_bin_res_list *)&parse_info->data[parsed];
|
|
+
|
|
+ if (sizeof(res_list->num) > (size - parsed))
|
|
+ return -EINVAL;
|
|
+
|
|
+ parsed += sizeof(res_list->num);
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+
|
|
+ ipts_dbg(ipts, "number of resources %u\n", res_list->num);
|
|
+
|
|
+ for (i = 0; i < res_list->num; i++) {
|
|
+ struct ipts_bin_io_header *io_hdr;
|
|
+
|
|
+ initialize = false;
|
|
+ io_buf_type = 0;
|
|
+ flags = 0;
|
|
+
|
|
+ // initial data
|
|
+ data_file = NULL;
|
|
+
|
|
+ res = (struct ipts_bin_res *)(&(bin_data[parsed]));
|
|
+ if (sizeof(res[0]) > (size - parsed))
|
|
+ return -EINVAL;
|
|
+
|
|
+ ipts_dbg(ipts, "Resource(%d): handle 0x%08x type %u init %u size %u alsigned %u\n",
|
|
+ i, res->handle, res->type, res->initialize,
|
|
+ res->size, res->aligned_size);
|
|
+
|
|
+ parsed += sizeof(res[0]);
|
|
+
|
|
+ if (res->initialize) {
|
|
+ if (res->size > (size - parsed))
|
|
+ return -EINVAL;
|
|
+ parsed += res->size;
|
|
+ }
|
|
+
|
|
+ initialize = res->initialize;
|
|
+ if (!initialize || res->size <=
|
|
+ sizeof(struct ipts_bin_io_header))
|
|
+ goto read_res_list_no_init;
|
|
+
|
|
+ io_hdr = (struct ipts_bin_io_header *)(&res->data[0]);
|
|
+
|
|
+ if (strncmp(io_hdr->str, "INTELTOUCH", 10) != 0)
|
|
+ goto read_res_list_no_init;
|
|
+
|
|
+ data_file = bin_get_data_file_info(parse_info->fw_info,
|
|
+ (u32)io_hdr->type);
|
|
+
|
|
+ switch (io_hdr->type) {
|
|
+ case IPTS_INPUT: {
|
|
+ ipts_dbg(ipts, "input detected\n");
|
|
+ io_buf_type = IPTS_INPUT_ON;
|
|
+ flags = IPTS_BUF_FLAG_CONTIGUOUS;
|
|
+ break;
|
|
+ }
|
|
+ case IPTS_OUTPUT: {
|
|
+ ipts_dbg(ipts, "output detected\n");
|
|
+ io_buf_type = IPTS_OUTPUT_ON;
|
|
+ oidx++;
|
|
+ break;
|
|
+ }
|
|
+ default: {
|
|
+ if ((u32)io_hdr->type > 31) {
|
|
+ ipts_err(ipts, "invalid io buffer : %u\n",
|
|
+ (u32)io_hdr->type);
|
|
+ continue;
|
|
+ }
|
|
+
|
|
+ if (is_alloc_cont_data(data_file))
|
|
+ flags = IPTS_BUF_FLAG_CONTIGUOUS;
|
|
+
|
|
+ io_buf_type = ((u32)1 << (u32)io_hdr->type);
|
|
+ ipts_dbg(ipts, "special io buffer %u\n",
|
|
+ io_hdr->type);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ initialize = false;
|
|
+
|
|
+read_res_list_no_init:
|
|
+ num_of_alloc = alloc_info->num_of_allocations;
|
|
+ bidx = bin_find_alloc(ipts, alloc_info, res->handle);
|
|
+
|
|
+ if (bidx == -1) {
|
|
+ ipts_dbg(ipts, "cannot find alloc info\n");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ for (pidx = 0; pidx < num_of_parallels; pidx++,
|
|
+ bidx += num_of_alloc) {
|
|
+ if (!res->aligned_size)
|
|
+ continue;
|
|
+
|
|
+ if (!(pidx == 0 || (io_buf_type &&
|
|
+ !is_shared_data(data_file))))
|
|
+ continue;
|
|
+
|
|
+ buf_size = res->aligned_size;
|
|
+ if (io_buf_type & IPTS_INPUT_ON) {
|
|
+ buf_size = max_t(u32, buf_size,
|
|
+ ipts->device_info.frame_size);
|
|
+
|
|
+ wl[pidx].iobuf_input = bidx;
|
|
+ } else if (io_buf_type & IPTS_OUTPUT_ON) {
|
|
+ wl[pidx].iobuf_output[oidx] = bidx;
|
|
+
|
|
+ if (is_parsing_vendor_kernel(parse_info) ||
|
|
+ oidx == 0)
|
|
+ goto read_res_list_no_inout_err;
|
|
+
|
|
+ ipts_err(ipts, "postproc with >1 inout is not supported: %d\n",
|
|
+ oidx);
|
|
+
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+read_res_list_no_inout_err:
|
|
+ if (!is_parsing_vendor_kernel(parse_info) &&
|
|
+ io_buf_type & IPTS_OUTPUT_ON) {
|
|
+ buf = bin_get_vendor_kernel_output(
|
|
+ parse_info, pidx);
|
|
+
|
|
+ alloc_info->buffs[bidx].no_unmap = true;
|
|
+ } else {
|
|
+ buf = ipts_map_buffer(ipts, buf_size, flags);
|
|
+ }
|
|
+
|
|
+ if (buf == NULL) {
|
|
+ ipts_dbg(ipts, "ipts_map_buffer failed\n");
|
|
+ return -ENOMEM;
|
|
+ }
|
|
+
|
|
+ if (initialize) {
|
|
+ memcpy((void *)buf->cpu_addr, &(res->data[0]),
|
|
+ res->size);
|
|
+ } else if (data_file && strlen(data_file->file_name)) {
|
|
+ bin_read_fw(ipts, data_file->file_name,
|
|
+ buf->cpu_addr, buf_size);
|
|
+ } else if (is_parsing_vendor_kernel(parse_info) ||
|
|
+ !(io_buf_type & IPTS_OUTPUT_ON)) {
|
|
+ memset((void *)buf->cpu_addr, 0, res->size);
|
|
+ }
|
|
+
|
|
+ alloc_info->buffs[bidx].buf = buf;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ alloc_info->num_of_outputs = oidx + 1;
|
|
+ parse_info->parsed = parsed;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int bin_read_patch_list(struct ipts_info *ipts,
|
|
+ struct bin_parse_info *parse_info,
|
|
+ struct bin_alloc_info *alloc_info, struct bin_workload *wl)
|
|
+{
|
|
+ struct ipts_bin_patch_list *patch_list;
|
|
+ struct ipts_bin_patch *patch;
|
|
+ struct ipts_mapbuffer *cmd = NULL;
|
|
+ u8 *batch;
|
|
+ int parsed, size, i, pidx, num_of_parallels, cidx, bidx;
|
|
+ unsigned int gtt_offset;
|
|
+
|
|
+ parsed = parse_info->parsed;
|
|
+ size = parse_info->size;
|
|
+ patch_list = (struct ipts_bin_patch_list *)&parse_info->data[parsed];
|
|
+
|
|
+ if (sizeof(patch_list->num) > (size - parsed))
|
|
+ return -EFAULT;
|
|
+ parsed += sizeof(patch_list->num);
|
|
+
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+ patch = (struct ipts_bin_patch *)(&patch_list->patch[0]);
|
|
+
|
|
+ for (i = 0; i < patch_list->num; i++) {
|
|
+ if (sizeof(patch_list->patch[0]) > (size - parsed))
|
|
+ return -EFAULT;
|
|
+
|
|
+ for (pidx = 0; pidx < num_of_parallels; pidx++) {
|
|
+ cidx = wl[pidx].cmdbuf_index;
|
|
+ bidx = patch[i].index + pidx *
|
|
+ alloc_info->num_of_allocations;
|
|
+
|
|
+ // buffer is shared
|
|
+ if (alloc_info->buffs[bidx].buf == NULL)
|
|
+ bidx = patch[i].index;
|
|
+
|
|
+ cmd = alloc_info->buffs[cidx].buf;
|
|
+ batch = (char *)(u64)cmd->cpu_addr;
|
|
+
|
|
+ gtt_offset = 0;
|
|
+ if (alloc_info->buffs[bidx].buf != NULL) {
|
|
+ gtt_offset = (u32)(u64)alloc_info->buffs
|
|
+ [bidx].buf->gfx_addr;
|
|
+ }
|
|
+ gtt_offset += patch[i].alloc_offset;
|
|
+
|
|
+ batch += patch[i].patch_offset;
|
|
+ *(u32 *)batch = gtt_offset;
|
|
+ }
|
|
+
|
|
+ parsed += sizeof(patch_list->patch[0]);
|
|
+ }
|
|
+
|
|
+ parse_info->parsed = parsed;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int bin_read_guc_wq_item(struct ipts_info *ipts,
|
|
+ struct bin_parse_info *parse_info,
|
|
+ struct bin_guc_wq_item **guc_wq_item)
|
|
+{
|
|
+ struct ipts_bin_guc_wq_info *bin_guc_wq;
|
|
+ struct bin_guc_wq_item *item;
|
|
+ u8 *wi_data;
|
|
+ int size, parsed, hdr_size, wi_size;
|
|
+ int i, batch_offset;
|
|
+
|
|
+ parsed = parse_info->parsed;
|
|
+ size = parse_info->size;
|
|
+ bin_guc_wq = (struct ipts_bin_guc_wq_info *)&parse_info->data[parsed];
|
|
+
|
|
+ wi_size = bin_guc_wq->size;
|
|
+ wi_data = bin_guc_wq->data;
|
|
+ batch_offset = bin_guc_wq->batch_offset;
|
|
+
|
|
+ ipts_dbg(ipts, "wi size = %d, bt offset = %d\n", wi_size, batch_offset);
|
|
+
|
|
+ for (i = 0; i < wi_size / sizeof(u32); i++)
|
|
+ ipts_dbg(ipts, "wi[%d] = 0x%08x\n", i, *((u32 *)wi_data + i));
|
|
+
|
|
+ hdr_size = sizeof(bin_guc_wq->size) + sizeof(bin_guc_wq->batch_offset);
|
|
+
|
|
+ if (hdr_size > (size - parsed))
|
|
+ return -EINVAL;
|
|
+
|
|
+ parsed += hdr_size;
|
|
+ item = vmalloc(sizeof(struct bin_guc_wq_item) + wi_size);
|
|
+
|
|
+ if (item == NULL)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ item->size = wi_size;
|
|
+ item->batch_offset = batch_offset;
|
|
+ memcpy(item->data, wi_data, wi_size);
|
|
+
|
|
+ *guc_wq_item = item;
|
|
+
|
|
+ parsed += wi_size;
|
|
+ parse_info->parsed = parsed;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int bin_setup_guc_workqueue(struct ipts_info *ipts,
|
|
+ struct bin_kernel_list *kernel_list)
|
|
+{
|
|
+ struct bin_alloc_info *alloc_info;
|
|
+ struct bin_workload *wl;
|
|
+ struct bin_kernel_info *kernel;
|
|
+ struct bin_buffer *bin_buf;
|
|
+ u8 *wq_start, *wq_addr, *wi_data;
|
|
+ int wq_size, wi_size, pidx, cidx, kidx, iter_size;
|
|
+ int i, num_of_parallels, batch_offset, k_num, total_workload;
|
|
+
|
|
+ wq_addr = (u8 *)ipts->resource.wq_info.wq_addr;
|
|
+ wq_size = ipts->resource.wq_info.wq_size;
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+ total_workload = ipts_get_wq_item_size(ipts);
|
|
+ k_num = kernel_list->num_of_kernels;
|
|
+
|
|
+ iter_size = total_workload * num_of_parallels;
|
|
+ if (wq_size % iter_size) {
|
|
+ ipts_err(ipts, "wq item cannot fit into wq\n");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ wq_start = wq_addr;
|
|
+ for (pidx = 0; pidx < num_of_parallels; pidx++) {
|
|
+ kernel = &kernel_list->kernels[0];
|
|
+
|
|
+ for (kidx = 0; kidx < k_num; kidx++, kernel++) {
|
|
+ wl = kernel->wl;
|
|
+ alloc_info = kernel->alloc_info;
|
|
+
|
|
+ batch_offset = kernel->guc_wq_item->batch_offset;
|
|
+ wi_size = kernel->guc_wq_item->size;
|
|
+ wi_data = &kernel->guc_wq_item->data[0];
|
|
+
|
|
+ cidx = wl[pidx].cmdbuf_index;
|
|
+ bin_buf = &alloc_info->buffs[cidx];
|
|
+
|
|
+ // Patch the WQ Data with proper batch buffer offset
|
|
+ *(u32 *)(wi_data + batch_offset) =
|
|
+ (u32)(unsigned long)(bin_buf->buf->gfx_addr);
|
|
+
|
|
+ memcpy(wq_addr, wi_data, wi_size);
|
|
+ wq_addr += wi_size;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ for (i = 0; i < (wq_size / iter_size) - 1; i++) {
|
|
+ memcpy(wq_addr, wq_start, iter_size);
|
|
+ wq_addr += iter_size;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int bin_read_bufid_patch(struct ipts_info *ipts,
|
|
+ struct bin_parse_info *parse_info,
|
|
+ struct ipts_bin_bufid_patch *bufid_patch)
|
|
+{
|
|
+ struct ipts_bin_bufid_patch *patch;
|
|
+ int size, parsed;
|
|
+
|
|
+ parsed = parse_info->parsed;
|
|
+ size = parse_info->size;
|
|
+ patch = (struct ipts_bin_bufid_patch *)&parse_info->data[parsed];
|
|
+
|
|
+ if (sizeof(struct ipts_bin_bufid_patch) > (size - parsed)) {
|
|
+ ipts_dbg(ipts, "invalid bufid info\n");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ parsed += sizeof(struct ipts_bin_bufid_patch);
|
|
+ parse_info->parsed = parsed;
|
|
+
|
|
+ memcpy(bufid_patch, patch, sizeof(struct ipts_bin_bufid_patch));
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int bin_setup_bufid_buffer(struct ipts_info *ipts,
|
|
+ struct bin_kernel_list *kernel_list)
|
|
+{
|
|
+ struct ipts_mapbuffer *buf, *cmd_buf;
|
|
+ struct bin_kernel_info *last_kernel;
|
|
+ struct bin_alloc_info *alloc_info;
|
|
+ struct bin_workload *wl;
|
|
+ u8 *batch;
|
|
+ int pidx, num_of_parallels, cidx;
|
|
+ u32 mem_offset, imm_offset;
|
|
+
|
|
+ buf = ipts_map_buffer(ipts, PAGE_SIZE, 0);
|
|
+ if (!buf)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ last_kernel = &kernel_list->kernels[kernel_list->num_of_kernels - 1];
|
|
+
|
|
+ mem_offset = last_kernel->bufid_patch.mem_offset;
|
|
+ imm_offset = last_kernel->bufid_patch.imm_offset;
|
|
+ wl = last_kernel->wl;
|
|
+ alloc_info = last_kernel->alloc_info;
|
|
+
|
|
+ // Initialize the buffer with default value
|
|
+ *((u32 *)buf->cpu_addr) = LASTSUBMITID_DEFAULT_VALUE;
|
|
+ ipts->current_buffer_index = LASTSUBMITID_DEFAULT_VALUE;
|
|
+ ipts->last_buffer_completed = LASTSUBMITID_DEFAULT_VALUE;
|
|
+ ipts->last_submitted_id = (int *)buf->cpu_addr;
|
|
+
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+
|
|
+ for (pidx = 0; pidx < num_of_parallels; pidx++) {
|
|
+ cidx = wl[pidx].cmdbuf_index;
|
|
+ cmd_buf = alloc_info->buffs[cidx].buf;
|
|
+ batch = (u8 *)(u64)cmd_buf->cpu_addr;
|
|
+
|
|
+ *((u32 *)(batch + mem_offset)) = (u32)(u64)(buf->gfx_addr);
|
|
+ *((u32 *)(batch + imm_offset)) = pidx;
|
|
+ }
|
|
+
|
|
+ kernel_list->bufid_buf = buf;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void unmap_buffers(struct ipts_info *ipts,
|
|
+ struct bin_alloc_info *alloc_info)
|
|
+{
|
|
+ struct bin_buffer *buffs;
|
|
+ int i, num_of_buffers;
|
|
+
|
|
+ num_of_buffers = alloc_info->num_of_buffers;
|
|
+ buffs = &alloc_info->buffs[0];
|
|
+
|
|
+ for (i = 0; i < num_of_buffers; i++) {
|
|
+ if (buffs[i].no_unmap != true && buffs[i].buf != NULL)
|
|
+ ipts_unmap_buffer(ipts, buffs[i].buf);
|
|
+ }
|
|
+}
|
|
+
|
|
+static int load_kernel(struct ipts_info *ipts,
|
|
+ struct bin_parse_info *parse_info,
|
|
+ struct bin_kernel_info *kernel)
|
|
+{
|
|
+ struct ipts_bin_header *hdr;
|
|
+ struct bin_workload *wl;
|
|
+ struct bin_alloc_info *alloc_info;
|
|
+ struct bin_guc_wq_item *guc_wq_item = NULL;
|
|
+ struct ipts_bin_bufid_patch bufid_patch;
|
|
+ int num_of_parallels, ret;
|
|
+
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+
|
|
+ // check header version and magic numbers
|
|
+ hdr = (struct ipts_bin_header *)parse_info->data;
|
|
+ if (hdr->version != IPTS_BIN_HEADER_VERSION ||
|
|
+ strncmp(hdr->str, "IOCL", 4) != 0) {
|
|
+ ipts_err(ipts, "binary header is not correct version = %d, ",
|
|
+ hdr->version);
|
|
+
|
|
+ ipts_err(ipts, "string = %c%c%c%c\n", hdr->str[0], hdr->str[1],
|
|
+ hdr->str[2], hdr->str[3]);
|
|
+
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ parse_info->parsed = sizeof(struct ipts_bin_header);
|
|
+ wl = vmalloc(sizeof(struct bin_workload) * num_of_parallels);
|
|
+
|
|
+ if (wl == NULL)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ memset(wl, 0, sizeof(struct bin_workload) * num_of_parallels);
|
|
+ alloc_info = vmalloc(sizeof(struct bin_alloc_info));
|
|
+
|
|
+ if (alloc_info == NULL) {
|
|
+ vfree(wl);
|
|
+ return -ENOMEM;
|
|
+ }
|
|
+
|
|
+ memset(alloc_info, 0, sizeof(struct bin_alloc_info));
|
|
+
|
|
+ ipts_dbg(ipts, "kernel setup(size : %d)\n", parse_info->size);
|
|
+
|
|
+ ret = bin_read_allocation_list(ipts, parse_info, alloc_info);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "error read_allocation_list\n");
|
|
+ goto setup_error;
|
|
+ }
|
|
+
|
|
+ ret = bin_read_cmd_buffer(ipts, parse_info, alloc_info, wl);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "error read_cmd_buffer\n");
|
|
+ goto setup_error;
|
|
+ }
|
|
+
|
|
+ ret = bin_read_res_list(ipts, parse_info, alloc_info, wl);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "error read_res_list\n");
|
|
+ goto setup_error;
|
|
+ }
|
|
+
|
|
+ ret = bin_read_patch_list(ipts, parse_info, alloc_info, wl);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "error read_patch_list\n");
|
|
+ goto setup_error;
|
|
+ }
|
|
+
|
|
+ ret = bin_read_guc_wq_item(ipts, parse_info, &guc_wq_item);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "error read_guc_workqueue\n");
|
|
+ goto setup_error;
|
|
+ }
|
|
+
|
|
+ memset(&bufid_patch, 0, sizeof(bufid_patch));
|
|
+
|
|
+ ret = bin_read_bufid_patch(ipts, parse_info, &bufid_patch);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "error read_bufid_patch\n");
|
|
+ goto setup_error;
|
|
+ }
|
|
+
|
|
+ kernel->wl = wl;
|
|
+ kernel->alloc_info = alloc_info;
|
|
+ kernel->is_vendor = is_parsing_vendor_kernel(parse_info);
|
|
+ kernel->guc_wq_item = guc_wq_item;
|
|
+
|
|
+ memcpy(&kernel->bufid_patch, &bufid_patch, sizeof(bufid_patch));
|
|
+
|
|
+ return 0;
|
|
+
|
|
+setup_error:
|
|
+ vfree(guc_wq_item);
|
|
+
|
|
+ unmap_buffers(ipts, alloc_info);
|
|
+
|
|
+ vfree(alloc_info->buffs);
|
|
+ vfree(alloc_info);
|
|
+ vfree(wl);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+void bin_setup_input_output(struct ipts_info *ipts,
|
|
+ struct bin_kernel_list *kernel_list)
|
|
+{
|
|
+ struct bin_kernel_info *vendor_kernel;
|
|
+ struct bin_workload *wl;
|
|
+ struct ipts_mapbuffer *buf;
|
|
+ struct bin_alloc_info *alloc_info;
|
|
+ int pidx, num_of_parallels, i, bidx;
|
|
+
|
|
+ vendor_kernel = &kernel_list->kernels[0];
|
|
+
|
|
+ wl = vendor_kernel->wl;
|
|
+ alloc_info = vendor_kernel->alloc_info;
|
|
+ ipts->resource.num_of_outputs = alloc_info->num_of_outputs;
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+
|
|
+ for (pidx = 0; pidx < num_of_parallels; pidx++) {
|
|
+ bidx = wl[pidx].iobuf_input;
|
|
+ buf = alloc_info->buffs[bidx].buf;
|
|
+
|
|
+ ipts_dbg(ipts, "in_buf[%d](%d) c:%p, p:%p, g:%p\n",
|
|
+ pidx, bidx, (void *)buf->cpu_addr,
|
|
+ (void *)buf->phy_addr, (void *)buf->gfx_addr);
|
|
+
|
|
+ ipts_set_input_buffer(ipts, pidx, buf->cpu_addr, buf->phy_addr);
|
|
+
|
|
+ for (i = 0; i < alloc_info->num_of_outputs; i++) {
|
|
+ bidx = wl[pidx].iobuf_output[i];
|
|
+ buf = alloc_info->buffs[bidx].buf;
|
|
+
|
|
+ ipts_dbg(ipts, "out_buf[%d][%d] c:%p, p:%p, g:%p\n",
|
|
+ pidx, i, (void *)buf->cpu_addr,
|
|
+ (void *)buf->phy_addr, (void *)buf->gfx_addr);
|
|
+
|
|
+ ipts_set_output_buffer(ipts, pidx, i,
|
|
+ buf->cpu_addr, buf->phy_addr);
|
|
+ }
|
|
+ }
|
|
+}
|
|
+
|
|
+static void unload_kernel(struct ipts_info *ipts,
|
|
+ struct bin_kernel_info *kernel)
|
|
+{
|
|
+ struct bin_alloc_info *alloc_info = kernel->alloc_info;
|
|
+ struct bin_guc_wq_item *guc_wq_item = kernel->guc_wq_item;
|
|
+
|
|
+ if (guc_wq_item)
|
|
+ vfree(guc_wq_item);
|
|
+
|
|
+ if (alloc_info) {
|
|
+ unmap_buffers(ipts, alloc_info);
|
|
+
|
|
+ vfree(alloc_info->buffs);
|
|
+ vfree(alloc_info);
|
|
+ }
|
|
+}
|
|
+
|
|
+static int setup_kernel(struct ipts_info *ipts,
|
|
+ struct ipts_bin_fw_list *fw_list)
|
|
+{
|
|
+ struct bin_kernel_list *kernel_list = NULL;
|
|
+ struct bin_kernel_info *kernel = NULL;
|
|
+ const struct firmware *fw = NULL;
|
|
+ struct bin_workload *wl;
|
|
+ struct ipts_bin_fw_info *fw_info;
|
|
+ char *fw_name, *fw_data;
|
|
+ struct bin_parse_info parse_info;
|
|
+ int ret = 0, kidx = 0, num_of_kernels = 0;
|
|
+ int vidx, total_workload = 0;
|
|
+
|
|
+ num_of_kernels = fw_list->num_of_fws;
|
|
+ kernel_list = vmalloc(sizeof(*kernel) *
|
|
+ num_of_kernels + sizeof(*kernel_list));
|
|
+
|
|
+ if (kernel_list == NULL)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ memset(kernel_list, 0, sizeof(*kernel) *
|
|
+ num_of_kernels + sizeof(*kernel_list));
|
|
+
|
|
+ kernel_list->num_of_kernels = num_of_kernels;
|
|
+ kernel = &kernel_list->kernels[0];
|
|
+
|
|
+ fw_data = (char *)&fw_list->fw_info[0];
|
|
+ for (kidx = 0; kidx < num_of_kernels; kidx++) {
|
|
+ fw_info = (struct ipts_bin_fw_info *)fw_data;
|
|
+ fw_name = &fw_info->fw_name[0];
|
|
+ vidx = fw_info->vendor_output;
|
|
+
|
|
+ ret = ipts_request_firmware(&fw, fw_name, &ipts->cldev->dev);
|
|
+ if (ret) {
|
|
+ ipts_err(ipts, "cannot read fw %s\n", fw_name);
|
|
+ goto error_exit;
|
|
+ }
|
|
+
|
|
+ parse_info.data = (u8 *)fw->data;
|
|
+ parse_info.size = fw->size;
|
|
+ parse_info.parsed = 0;
|
|
+ parse_info.fw_info = fw_info;
|
|
+ parse_info.vendor_kernel = (kidx == 0) ? NULL : &kernel[0];
|
|
+ parse_info.interested_vendor_output = vidx;
|
|
+
|
|
+ ret = load_kernel(ipts, &parse_info, &kernel[kidx]);
|
|
+ if (ret) {
|
|
+ ipts_err(ipts, "do_setup_kernel error : %d\n", ret);
|
|
+ release_firmware(fw);
|
|
+ goto error_exit;
|
|
+ }
|
|
+
|
|
+ release_firmware(fw);
|
|
+
|
|
+ total_workload += kernel[kidx].guc_wq_item->size;
|
|
+
|
|
+ // advance to the next kernel
|
|
+ fw_data += sizeof(struct ipts_bin_fw_info);
|
|
+ fw_data += sizeof(struct ipts_bin_data_file_info) *
|
|
+ fw_info->num_of_data_files;
|
|
+ }
|
|
+
|
|
+ ipts_set_wq_item_size(ipts, total_workload);
|
|
+
|
|
+ ret = bin_setup_guc_workqueue(ipts, kernel_list);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "error setup_guc_workqueue\n");
|
|
+ goto error_exit;
|
|
+ }
|
|
+
|
|
+ ret = bin_setup_bufid_buffer(ipts, kernel_list);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "error setup_lastbubmit_buffer\n");
|
|
+ goto error_exit;
|
|
+ }
|
|
+
|
|
+ bin_setup_input_output(ipts, kernel_list);
|
|
+
|
|
+ // workload is not needed during run-time so free them
|
|
+ for (kidx = 0; kidx < num_of_kernels; kidx++) {
|
|
+ wl = kernel[kidx].wl;
|
|
+ vfree(wl);
|
|
+ }
|
|
+
|
|
+ ipts->kernel_handle = (u64)kernel_list;
|
|
+
|
|
+ return 0;
|
|
+
|
|
+error_exit:
|
|
+
|
|
+ for (kidx = 0; kidx < num_of_kernels; kidx++) {
|
|
+ wl = kernel[kidx].wl;
|
|
+ vfree(wl);
|
|
+ unload_kernel(ipts, &kernel[kidx]);
|
|
+ }
|
|
+
|
|
+ vfree(kernel_list);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+
|
|
+static void release_kernel(struct ipts_info *ipts)
|
|
+{
|
|
+ struct bin_kernel_list *kernel_list;
|
|
+ struct bin_kernel_info *kernel;
|
|
+ int kidx, knum;
|
|
+
|
|
+ kernel_list = (struct bin_kernel_list *)ipts->kernel_handle;
|
|
+ knum = kernel_list->num_of_kernels;
|
|
+ kernel = &kernel_list->kernels[0];
|
|
+
|
|
+ for (kidx = 0; kidx < knum; kidx++) {
|
|
+ unload_kernel(ipts, kernel);
|
|
+ kernel++;
|
|
+ }
|
|
+
|
|
+ ipts_unmap_buffer(ipts, kernel_list->bufid_buf);
|
|
+
|
|
+ vfree(kernel_list);
|
|
+ ipts->kernel_handle = 0;
|
|
+}
|
|
+
|
|
+int ipts_init_kernels(struct ipts_info *ipts)
|
|
+{
|
|
+ struct ipts_bin_fw_list *fw_list;
|
|
+ int ret;
|
|
+
|
|
+ ret = ipts_open_gpu(ipts);
|
|
+ if (ret) {
|
|
+ ipts_err(ipts, "open gpu error : %d\n", ret);
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ ret = ipts_request_firmware_config(ipts, &fw_list);
|
|
+ if (ret) {
|
|
+ ipts_err(ipts, "request firmware config error : %d\n", ret);
|
|
+ goto close_gpu;
|
|
+ }
|
|
+
|
|
+ ret = setup_kernel(ipts, fw_list);
|
|
+ if (ret) {
|
|
+ ipts_err(ipts, "setup kernel error : %d\n", ret);
|
|
+ goto close_gpu;
|
|
+ }
|
|
+
|
|
+ return ret;
|
|
+
|
|
+close_gpu:
|
|
+ ipts_close_gpu(ipts);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+void ipts_release_kernels(struct ipts_info *ipts)
|
|
+{
|
|
+ release_kernel(ipts);
|
|
+ ipts_close_gpu(ipts);
|
|
+}
|
|
diff --git a/drivers/misc/ipts/kernel.h b/drivers/misc/ipts/kernel.h
|
|
new file mode 100644
|
|
index 0000000000000..7be45da01cfc0
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/kernel.h
|
|
@@ -0,0 +1,17 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_KERNEL_H_
|
|
+#define _IPTS_KERNEL_H_
|
|
+
|
|
+#include "ipts.h"
|
|
+
|
|
+int ipts_init_kernels(struct ipts_info *ipts);
|
|
+void ipts_release_kernels(struct ipts_info *ipts);
|
|
+
|
|
+#endif // _IPTS_KERNEL_H_
|
|
diff --git a/drivers/misc/ipts/mei-msgs.h b/drivers/misc/ipts/mei-msgs.h
|
|
new file mode 100644
|
|
index 0000000000000..036b74f7234ef
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/mei-msgs.h
|
|
@@ -0,0 +1,901 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2013-2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_MEI_MSGS_H_
|
|
+#define _IPTS_MEI_MSGS_H_
|
|
+
|
|
+#include <linux/build_bug.h>
|
|
+
|
|
+#include "sensor-regs.h"
|
|
+
|
|
+#pragma pack(1)
|
|
+
|
|
+// Define static_assert macro (which will be available after 5.1
|
|
+// and not available on 4.19 yet) to check structure size and fail
|
|
+// compile for unexpected mismatch.
|
|
+// Taken from upstream commit 6bab69c65013bed5fce9f101a64a84d0385b3946.
|
|
+#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
|
|
+#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
|
|
+
|
|
+// Initial protocol version
|
|
+#define TOUCH_HECI_CLIENT_PROTOCOL_VERSION 10
|
|
+
|
|
+// GUID that identifies the Touch HECI client.
|
|
+#define TOUCH_HECI_CLIENT_GUID \
|
|
+ {0x3e8d0870, 0x271a, 0x4208, \
|
|
+ {0x8e, 0xb5, 0x9a, 0xcb, 0x94, 0x02, 0xae, 0x04} }
|
|
+
|
|
+#define TOUCH_SENSOR_GET_DEVICE_INFO_CMD 0x00000001
|
|
+#define TOUCH_SENSOR_GET_DEVICE_INFO_RSP 0x80000001
|
|
+
|
|
+#define TOUCH_SENSOR_SET_MODE_CMD 0x00000002
|
|
+#define TOUCH_SENSOR_SET_MODE_RSP 0x80000002
|
|
+
|
|
+#define TOUCH_SENSOR_SET_MEM_WINDOW_CMD 0x00000003
|
|
+#define TOUCH_SENSOR_SET_MEM_WINDOW_RSP 0x80000003
|
|
+
|
|
+#define TOUCH_SENSOR_QUIESCE_IO_CMD 0x00000004
|
|
+#define TOUCH_SENSOR_QUIESCE_IO_RSP 0x80000004
|
|
+
|
|
+#define TOUCH_SENSOR_HID_READY_FOR_DATA_CMD 0x00000005
|
|
+#define TOUCH_SENSOR_HID_READY_FOR_DATA_RSP 0x80000005
|
|
+
|
|
+#define TOUCH_SENSOR_FEEDBACK_READY_CMD 0x00000006
|
|
+#define TOUCH_SENSOR_FEEDBACK_READY_RSP 0x80000006
|
|
+
|
|
+#define TOUCH_SENSOR_CLEAR_MEM_WINDOW_CMD 0x00000007
|
|
+#define TOUCH_SENSOR_CLEAR_MEM_WINDOW_RSP 0x80000007
|
|
+
|
|
+#define TOUCH_SENSOR_NOTIFY_DEV_READY_CMD 0x00000008
|
|
+#define TOUCH_SENSOR_NOTIFY_DEV_READY_RSP 0x80000008
|
|
+
|
|
+#define TOUCH_SENSOR_SET_POLICIES_CMD 0x00000009
|
|
+#define TOUCH_SENSOR_SET_POLICIES_RSP 0x80000009
|
|
+
|
|
+#define TOUCH_SENSOR_GET_POLICIES_CMD 0x0000000A
|
|
+#define TOUCH_SENSOR_GET_POLICIES_RSP 0x8000000A
|
|
+
|
|
+#define TOUCH_SENSOR_RESET_CMD 0x0000000B
|
|
+#define TOUCH_SENSOR_RESET_RSP 0x8000000B
|
|
+
|
|
+#define TOUCH_SENSOR_READ_ALL_REGS_CMD 0x0000000C
|
|
+#define TOUCH_SENSOR_READ_ALL_REGS_RSP 0x8000000C
|
|
+
|
|
+// ME sends this message to indicate previous command was unrecognized
|
|
+#define TOUCH_SENSOR_CMD_ERROR_RSP 0x8FFFFFFF
|
|
+
|
|
+#define TOUCH_SENSOR_MAX_DATA_BUFFERS 16
|
|
+#define TOUCH_HID_2_ME_BUFFER_ID TOUCH_SENSOR_MAX_DATA_BUFFERS
|
|
+#define TOUCH_HID_2_ME_BUFFER_SIZE_MAX 1024
|
|
+#define TOUCH_INVALID_BUFFER_ID 0xFF
|
|
+
|
|
+#define TOUCH_DEFAULT_DOZE_TIMER_SECONDS 30
|
|
+
|
|
+#define TOUCH_MSG_SIZE_MAX_BYTES \
|
|
+ (MAX(sizeof(struct touch_sensor_msg_m2h), \
|
|
+ sizeof(struct touch_sensor_msg_h2m)))
|
|
+
|
|
+// indicates GuC got reset and ME must re-read GuC data such as
|
|
+// TailOffset and Doorbell Cookie values
|
|
+#define TOUCH_SENSOR_QUIESCE_FLAG_GUC_RESET BIT(0)
|
|
+
|
|
+/*
|
|
+ * Debug Policy bits used by TOUCH_POLICY_DATA.DebugOverride
|
|
+ */
|
|
+
|
|
+// Disable sensor startup timer
|
|
+#define TOUCH_DBG_POLICY_OVERRIDE_STARTUP_TIMER_DIS BIT(0)
|
|
+
|
|
+// Disable Sync Byte check
|
|
+#define TOUCH_DBG_POLICY_OVERRIDE_SYNC_BYTE_DIS BIT(1)
|
|
+
|
|
+// Disable error resets
|
|
+#define TOUCH_DBG_POLICY_OVERRIDE_ERR_RESET_DIS BIT(2)
|
|
+
|
|
+/*
|
|
+ * Touch Sensor Status Codes
|
|
+ */
|
|
+enum touch_status {
|
|
+ // Requested operation was successful
|
|
+ TOUCH_STATUS_SUCCESS = 0,
|
|
+
|
|
+ // Invalid parameter(s) sent
|
|
+ TOUCH_STATUS_INVALID_PARAMS,
|
|
+
|
|
+ // Unable to validate address range
|
|
+ TOUCH_STATUS_ACCESS_DENIED,
|
|
+
|
|
+ // HECI message incorrect size for specified command
|
|
+ TOUCH_STATUS_CMD_SIZE_ERROR,
|
|
+
|
|
+ // Memory window not set or device is not armed for operation
|
|
+ TOUCH_STATUS_NOT_READY,
|
|
+
|
|
+ // There is already an outstanding message of the same type, must
|
|
+ // wait for response before sending another request of that type
|
|
+ TOUCH_STATUS_REQUEST_OUTSTANDING,
|
|
+
|
|
+ // Sensor could not be found. Either no sensor is connected,
|
|
+ // the sensor has not yet initialized, or the system is
|
|
+ // improperly configured.
|
|
+ TOUCH_STATUS_NO_SENSOR_FOUND,
|
|
+
|
|
+ // Not enough memory/storage for requested operation
|
|
+ TOUCH_STATUS_OUT_OF_MEMORY,
|
|
+
|
|
+ // Unexpected error occurred
|
|
+ TOUCH_STATUS_INTERNAL_ERROR,
|
|
+
|
|
+ // Used in TOUCH_SENSOR_HID_READY_FOR_DATA_RSP to indicate sensor
|
|
+ // has been disabled or reset and must be reinitialized.
|
|
+ TOUCH_STATUS_SENSOR_DISABLED,
|
|
+
|
|
+ // Used to indicate compatibility revision check between sensor and ME
|
|
+ // failed, or protocol ver between ME/HID/Kernels failed.
|
|
+ TOUCH_STATUS_COMPAT_CHECK_FAIL,
|
|
+
|
|
+ // Indicates sensor went through a reset initiated by ME
|
|
+ TOUCH_STATUS_SENSOR_EXPECTED_RESET,
|
|
+
|
|
+ // Indicates sensor went through an unexpected reset
|
|
+ TOUCH_STATUS_SENSOR_UNEXPECTED_RESET,
|
|
+
|
|
+ // Requested sensor reset failed to complete
|
|
+ TOUCH_STATUS_RESET_FAILED,
|
|
+
|
|
+ // Operation timed out
|
|
+ TOUCH_STATUS_TIMEOUT,
|
|
+
|
|
+ // Test mode pattern did not match expected values
|
|
+ TOUCH_STATUS_TEST_MODE_FAIL,
|
|
+
|
|
+ // Indicates sensor reported fatal error during reset sequence.
|
|
+ // Further progress is not possible.
|
|
+ TOUCH_STATUS_SENSOR_FAIL_FATAL,
|
|
+
|
|
+ // Indicates sensor reported non-fatal error during reset sequence.
|
|
+ // HID/BIOS logs error and attempts to continue.
|
|
+ TOUCH_STATUS_SENSOR_FAIL_NONFATAL,
|
|
+
|
|
+ // Indicates sensor reported invalid capabilities, such as not
|
|
+ // supporting required minimum frequency or I/O mode.
|
|
+ TOUCH_STATUS_INVALID_DEVICE_CAPS,
|
|
+
|
|
+ // Indicates that command cannot be complete until ongoing Quiesce I/O
|
|
+ // flow has completed.
|
|
+ TOUCH_STATUS_QUIESCE_IO_IN_PROGRESS,
|
|
+
|
|
+ // Invalid value, never returned
|
|
+ TOUCH_STATUS_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_status) == 4);
|
|
+
|
|
+/*
|
|
+ * Defines for message structures used for Host to ME communication
|
|
+ */
|
|
+enum touch_sensor_mode {
|
|
+ // Set mode to HID mode
|
|
+ TOUCH_SENSOR_MODE_HID = 0,
|
|
+
|
|
+ // Set mode to Raw Data mode
|
|
+ TOUCH_SENSOR_MODE_RAW_DATA,
|
|
+
|
|
+ // Used like TOUCH_SENSOR_MODE_HID but data coming from sensor is
|
|
+ // not necessarily a HID packet.
|
|
+ TOUCH_SENSOR_MODE_SENSOR_DEBUG = 4,
|
|
+
|
|
+ // Invalid value
|
|
+ TOUCH_SENSOR_MODE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_sensor_mode) == 4);
|
|
+
|
|
+struct touch_sensor_set_mode_cmd_data {
|
|
+ // Indicate desired sensor mode
|
|
+ enum touch_sensor_mode sensor_mode;
|
|
+
|
|
+ // For future expansion
|
|
+ u32 Reserved[3];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_set_mode_cmd_data) == 16);
|
|
+
|
|
+struct touch_sensor_set_mem_window_cmd_data {
|
|
+ // Lower 32 bits of Touch Data Buffer physical address. Size of each
|
|
+ // buffer should be TOUCH_SENSOR_GET_DEVICE_INFO_RSP_DATA.FrameSize
|
|
+ u32 touch_data_buffer_addr_lower[TOUCH_SENSOR_MAX_DATA_BUFFERS];
|
|
+
|
|
+ // Upper 32 bits of Touch Data Buffer physical address. Size of each
|
|
+ // buffer should be TOUCH_SENSOR_GET_DEVICE_INFO_RSP_DATA.FrameSize
|
|
+ u32 touch_data_buffer_addr_upper[TOUCH_SENSOR_MAX_DATA_BUFFERS];
|
|
+
|
|
+ // Lower 32 bits of Tail Offset physical address
|
|
+ u32 tail_offset_addr_lower;
|
|
+
|
|
+ // Upper 32 bits of Tail Offset physical address, always 32 bit,
|
|
+ // increment by WorkQueueItemSize
|
|
+ u32 tail_offset_addr_upper;
|
|
+
|
|
+ // Lower 32 bits of Doorbell register physical address
|
|
+ u32 doorbell_cookie_addr_lower;
|
|
+
|
|
+ // Upper 32 bits of Doorbell register physical address, always 32 bit,
|
|
+ // increment as integer, rollover to 1
|
|
+ u32 doorbell_cookie_addr_upper;
|
|
+
|
|
+ // Lower 32 bits of Feedback Buffer physical address. Size of each
|
|
+ // buffer should be TOUCH_SENSOR_GET_DEVICE_INFO_RSP_DATA.FeedbackSize
|
|
+ u32 feedback_buffer_addr_lower[TOUCH_SENSOR_MAX_DATA_BUFFERS];
|
|
+
|
|
+ // Upper 32 bits of Feedback Buffer physical address. Size of each
|
|
+ // buffer should be TOUCH_SENSOR_GET_DEVICE_INFO_RSP_DATA.FeedbackSize
|
|
+ u32 feedback_buffer_addr_upper[TOUCH_SENSOR_MAX_DATA_BUFFERS];
|
|
+
|
|
+ // Lower 32 bits of dedicated HID to ME communication buffer.
|
|
+ // Size is Hid2MeBufferSize.
|
|
+ u32 hid2me_buffer_addr_lower;
|
|
+
|
|
+ // Upper 32 bits of dedicated HID to ME communication buffer.
|
|
+ // Size is Hid2MeBufferSize.
|
|
+ u32 hid2me_buffer_addr_upper;
|
|
+
|
|
+ // Size in bytes of Hid2MeBuffer, can be no bigger than
|
|
+ // TOUCH_HID_2_ME_BUFFER_SIZE_MAX
|
|
+ u32 hid2me_buffer_size;
|
|
+
|
|
+ // For future expansion
|
|
+ u8 reserved1;
|
|
+
|
|
+ // Size in bytes of the GuC Work Queue Item pointed to by TailOffset
|
|
+ u8 work_queue_item_size;
|
|
+
|
|
+ // Size in bytes of the entire GuC Work Queue
|
|
+ u16 work_queue_size;
|
|
+
|
|
+ // For future expansion
|
|
+ u32 reserved[8];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_set_mem_window_cmd_data) == 320);
|
|
+
|
|
+struct touch_sensor_quiesce_io_cmd_data {
|
|
+ // Optionally set TOUCH_SENSOR_QUIESCE_FLAG_GUC_RESET
|
|
+ u32 quiesce_flags;
|
|
+ u32 reserved[2];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_quiesce_io_cmd_data) == 12);
|
|
+
|
|
+struct touch_sensor_feedback_ready_cmd_data {
|
|
+ // Index value from 0 to TOUCH_HID_2_ME_BUFFER_ID used to indicate
|
|
+ // which Feedback Buffer to use. Using special value
|
|
+ // TOUCH_HID_2_ME_BUFFER_ID is an indication to ME to
|
|
+ // get feedback data from the Hid2Me buffer instead of one
|
|
+ // of the standard Feedback buffers.
|
|
+ u8 feedback_index;
|
|
+
|
|
+ // For future expansion
|
|
+ u8 reserved1[3];
|
|
+
|
|
+ // Transaction ID that was originally passed to host in
|
|
+ // TOUCH_HID_PRIVATE_DATA. Used to track round trip of a given
|
|
+ // transaction for performance measurements.
|
|
+ u32 transaction_id;
|
|
+
|
|
+ // For future expansion
|
|
+ u32 reserved2[2];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_feedback_ready_cmd_data) == 16);
|
|
+
|
|
+enum touch_freq_override {
|
|
+ // Do not apply any override
|
|
+ TOUCH_FREQ_OVERRIDE_NONE,
|
|
+
|
|
+ // Force frequency to 10MHz (not currently supported)
|
|
+ TOUCH_FREQ_OVERRIDE_10MHZ,
|
|
+
|
|
+ // Force frequency to 17MHz
|
|
+ TOUCH_FREQ_OVERRIDE_17MHZ,
|
|
+
|
|
+ // Force frequency to 30MHz
|
|
+ TOUCH_FREQ_OVERRIDE_30MHZ,
|
|
+
|
|
+ // Force frequency to 50MHz (not currently supported)
|
|
+ TOUCH_FREQ_OVERRIDE_50MHZ,
|
|
+
|
|
+ // Invalid value
|
|
+ TOUCH_FREQ_OVERRIDE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_freq_override) == 4);
|
|
+
|
|
+enum touch_spi_io_mode_override {
|
|
+ // Do not apply any override
|
|
+ TOUCH_SPI_IO_MODE_OVERRIDE_NONE,
|
|
+
|
|
+ // Force Single I/O
|
|
+ TOUCH_SPI_IO_MODE_OVERRIDE_SINGLE,
|
|
+
|
|
+ // Force Dual I/O
|
|
+ TOUCH_SPI_IO_MODE_OVERRIDE_DUAL,
|
|
+
|
|
+ // Force Quad I/O
|
|
+ TOUCH_SPI_IO_MODE_OVERRIDE_QUAD,
|
|
+
|
|
+ // Invalid value
|
|
+ TOUCH_SPI_IO_MODE_OVERRIDE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_spi_io_mode_override) == 4);
|
|
+
|
|
+struct touch_policy_data {
|
|
+ // For future expansion.
|
|
+ u32 reserved0;
|
|
+
|
|
+ // Value in seconds, after which ME will put the sensor into Doze power
|
|
+ // state if no activity occurs. Set to 0 to disable Doze mode
|
|
+ // (not recommended). Value will be set to
|
|
+ // TOUCH_DEFAULT_DOZE_TIMER_SECONDS by default
|
|
+ u32 doze_timer:16;
|
|
+
|
|
+ // Override frequency requested by sensor
|
|
+ enum touch_freq_override freq_override:3;
|
|
+
|
|
+ // Override IO mode requested by sensor
|
|
+ enum touch_spi_io_mode_override spi_io_override :3;
|
|
+
|
|
+ // For future expansion
|
|
+ u32 reserved1:10;
|
|
+
|
|
+ // For future expansion
|
|
+ u32 reserved2;
|
|
+
|
|
+ // Normally all bits will be zero. Bits will be defined as needed
|
|
+ // for enabling special debug features
|
|
+ u32 debug_override;
|
|
+};
|
|
+static_assert(sizeof(struct touch_policy_data) == 16);
|
|
+
|
|
+struct touch_sensor_set_policies_cmd_data {
|
|
+ // Contains the desired policy to be set
|
|
+ struct touch_policy_data policy_data;
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_set_policies_cmd_data) == 16);
|
|
+
|
|
+enum touch_sensor_reset_type {
|
|
+ // Hardware Reset using dedicated GPIO pin
|
|
+ TOUCH_SENSOR_RESET_TYPE_HARD,
|
|
+
|
|
+ // Software Reset using command written over SPI interface
|
|
+ TOUCH_SENSOR_RESET_TYPE_SOFT,
|
|
+
|
|
+ // Invalid value
|
|
+ TOUCH_SENSOR_RESET_TYPE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_sensor_reset_type) == 4);
|
|
+
|
|
+struct touch_sensor_reset_cmd_data {
|
|
+ // Indicate desired reset type
|
|
+ enum touch_sensor_reset_type reset_type;
|
|
+
|
|
+ // For future expansion
|
|
+ u32 reserved;
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_reset_cmd_data) == 8);
|
|
+
|
|
+/*
|
|
+ * Host to ME message
|
|
+ */
|
|
+union touch_sensor_data_h2m {
|
|
+ struct touch_sensor_set_mode_cmd_data set_mode_cmd_data;
|
|
+ struct touch_sensor_set_mem_window_cmd_data set_window_cmd_data;
|
|
+ struct touch_sensor_quiesce_io_cmd_data quiesce_io_cmd_data;
|
|
+ struct touch_sensor_feedback_ready_cmd_data feedback_ready_cmd_data;
|
|
+ struct touch_sensor_set_policies_cmd_data set_policies_cmd_data;
|
|
+ struct touch_sensor_reset_cmd_data reset_cmd_data;
|
|
+};
|
|
+struct touch_sensor_msg_h2m {
|
|
+ u32 command_code;
|
|
+ union touch_sensor_data_h2m h2m_data;
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_msg_h2m) == 324);
|
|
+
|
|
+/*
|
|
+ * Message structures used for ME to Host communication
|
|
+ */
|
|
+
|
|
+// I/O mode values used by TOUCH_SENSOR_GET_DEVICE_INFO_RSP_DATA.
|
|
+enum touch_spi_io_mode {
|
|
+ // Sensor set for Single I/O SPI
|
|
+ TOUCH_SPI_IO_MODE_SINGLE = 0,
|
|
+
|
|
+ // Sensor set for Dual I/O SPI
|
|
+ TOUCH_SPI_IO_MODE_DUAL,
|
|
+
|
|
+ // Sensor set for Quad I/O SPI
|
|
+ TOUCH_SPI_IO_MODE_QUAD,
|
|
+
|
|
+ // Invalid value
|
|
+ TOUCH_SPI_IO_MODE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_spi_io_mode) == 4);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_GET_DEVICE_INFO_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_GET_DEVICE_INFO_CMD. This code will be followed by
|
|
+ * TOUCH_SENSOR_GET_DEVICE_INFO_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and sensor
|
|
+ * details are reported.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ *
|
|
+ * TOUCH_STATUS_NO_SENSOR_FOUND:
|
|
+ * Sensor has not yet been detected. Other fields will
|
|
+ * not contain valid data.
|
|
+ *
|
|
+ * TOUCH_STATUS_INVALID_DEVICE_CAPS:
|
|
+ * Indicates sensor does not support minimum required Frequency
|
|
+ * or I/O Mode. ME firmware will choose best possible option for
|
|
+ * the errant field. Caller should attempt to continue.
|
|
+ *
|
|
+ * TOUCH_STATUS_COMPAT_CHECK_FAIL:
|
|
+ * Indicates TouchIC/ME compatibility mismatch. Caller should
|
|
+ * attempt to continue.
|
|
+ */
|
|
+struct touch_sensor_get_device_info_rsp_data {
|
|
+ // Touch Sensor vendor ID
|
|
+ u16 vendor_id;
|
|
+
|
|
+ // Touch Sensor device ID
|
|
+ u16 device_id;
|
|
+
|
|
+ // Touch Sensor Hardware Revision
|
|
+ u32 hw_rev;
|
|
+
|
|
+ // Touch Sensor Firmware Revision
|
|
+ u32 fw_rev;
|
|
+
|
|
+ // Max size of one frame returned by Touch IC in bytes. This data
|
|
+ // will be TOUCH_RAW_DATA_HDR followed by a payload. The payload can be
|
|
+ // raw data or a HID structure depending on mode.
|
|
+ u32 frame_size;
|
|
+
|
|
+ // Max size of one Feedback structure in bytes
|
|
+ u32 feedback_size;
|
|
+
|
|
+ // Current operating mode of the sensor
|
|
+ enum touch_sensor_mode sensor_mode;
|
|
+
|
|
+ // Maximum number of simultaneous touch points that
|
|
+ // can be reported by sensor
|
|
+ u32 max_touch_points:8;
|
|
+
|
|
+ // SPI bus Frequency supported by sensor and ME firmware
|
|
+ enum touch_freq spi_frequency:8;
|
|
+
|
|
+ // SPI bus I/O Mode supported by sensor and ME firmware
|
|
+ enum touch_spi_io_mode spi_io_mode:8;
|
|
+
|
|
+ // For future expansion
|
|
+ u32 reserved0:8;
|
|
+
|
|
+ // Minor version number of EDS spec supported by
|
|
+ // sensor (from Compat Rev ID Reg)
|
|
+ u8 sensor_minor_eds_rev;
|
|
+
|
|
+ // Major version number of EDS spec supported by
|
|
+ // sensor (from Compat Rev ID Reg)
|
|
+ u8 sensor_major_eds_rev;
|
|
+
|
|
+ // Minor version number of EDS spec supported by ME
|
|
+ u8 me_minor_eds_rev;
|
|
+
|
|
+ // Major version number of EDS spec supported by ME
|
|
+ u8 me_major_eds_rev;
|
|
+
|
|
+ // EDS Interface Revision Number supported by
|
|
+ // sensor (from Compat Rev ID Reg)
|
|
+ u8 sensor_eds_intf_rev;
|
|
+
|
|
+ // EDS Interface Revision Number supported by ME
|
|
+ u8 me_eds_intf_rev;
|
|
+
|
|
+ // EU Kernel Compatibility Version (from Compat Rev ID Reg)
|
|
+ u8 kernel_compat_ver;
|
|
+
|
|
+ // For future expansion
|
|
+ u8 reserved1;
|
|
+
|
|
+ // For future expansion
|
|
+ u32 reserved2[2];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_get_device_info_rsp_data) == 44);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_SET_MODE_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_SET_MODE_CMD. This code will be followed by
|
|
+ * TOUCH_SENSOR_SET_MODE_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and mode was set.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ *
|
|
+ * TOUCH_STATUS_INVALID_PARAMS:
|
|
+ * Input parameters are out of range.
|
|
+ */
|
|
+struct touch_sensor_set_mode_rsp_data {
|
|
+ // For future expansion
|
|
+ u32 reserved[3];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_set_mode_rsp_data) == 12);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_SET_MEM_WINDOW_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_SET_MEM_WINDOW_CMD. This code will be followed
|
|
+ * by TOUCH_SENSOR_SET_MEM_WINDOW_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and memory window was set.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ *
|
|
+ * TOUCH_STATUS_INVALID_PARAMS:
|
|
+ * Input parameters are out of range.
|
|
+ *
|
|
+ * TOUCH_STATUS_ACCESS_DENIED:
|
|
+ * Unable to map host address ranges for DMA.
|
|
+ *
|
|
+ * TOUCH_STATUS_OUT_OF_MEMORY:
|
|
+ * Unable to allocate enough space for needed buffers.
|
|
+ */
|
|
+struct touch_sensor_set_mem_window_rsp_data {
|
|
+ // For future expansion
|
|
+ u32 reserved[3];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_set_mem_window_rsp_data) == 12);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_QUIESCE_IO_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_QUIESCE_IO_CMD. This code will be followed
|
|
+ * by TOUCH_SENSOR_QUIESCE_IO_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and touch flow has stopped.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ *
|
|
+ * TOUCH_STATUS_QUIESCE_IO_IN_PROGRESS:
|
|
+ * Indicates that Quiesce I/O is already in progress and this
|
|
+ * command cannot be accepted at this time.
|
|
+ *
|
|
+ * TOUCH_STATIS_TIMEOUT:
|
|
+ * Indicates ME timed out waiting for Quiesce I/O flow to complete.
|
|
+ */
|
|
+struct touch_sensor_quiesce_io_rsp_data {
|
|
+ // For future expansion
|
|
+ u32 reserved[3];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_quiesce_io_rsp_data) == 12);
|
|
+
|
|
+// Reset Reason values used in TOUCH_SENSOR_HID_READY_FOR_DATA_RSP_DATA
|
|
+enum touch_reset_reason {
|
|
+ // Reason for sensor reset is not known
|
|
+ TOUCH_RESET_REASON_UNKNOWN = 0,
|
|
+
|
|
+ // Reset was requested as part of TOUCH_SENSOR_FEEDBACK_READY_CMD
|
|
+ TOUCH_RESET_REASON_FEEDBACK_REQUEST,
|
|
+
|
|
+ // Reset was requested via TOUCH_SENSOR_RESET_CMD
|
|
+ TOUCH_RESET_REASON_HECI_REQUEST,
|
|
+
|
|
+ TOUCH_RESET_REASON_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_reset_reason) == 4);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_HID_READY_FOR_DATA_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_HID_READY_FOR_DATA_CMD. This code will be followed
|
|
+ * by TOUCH_SENSOR_HID_READY_FOR_DATA_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and HID data was sent by DMA.
|
|
+ * This will only be sent in HID mode.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ *
|
|
+ * TOUCH_STATUS_REQUEST_OUTSTANDING:
|
|
+ * Previous request is still outstanding, ME FW cannot handle
|
|
+ * another request for the same command.
|
|
+ *
|
|
+ * TOUCH_STATUS_NOT_READY:
|
|
+ * Indicates memory window has not yet been set by BIOS/HID.
|
|
+ *
|
|
+ * TOUCH_STATUS_SENSOR_DISABLED:
|
|
+ * Indicates that ME to HID communication has been stopped either
|
|
+ * by TOUCH_SENSOR_QUIESCE_IO_CMD or
|
|
+ * TOUCH_SENSOR_CLEAR_MEM_WINDOW_CMD.
|
|
+ *
|
|
+ * TOUCH_STATUS_SENSOR_UNEXPECTED_RESET:
|
|
+ * Sensor signaled a Reset Interrupt. ME did not expect this and
|
|
+ * has no info about why this occurred.
|
|
+ *
|
|
+ * TOUCH_STATUS_SENSOR_EXPECTED_RESET:
|
|
+ * Sensor signaled a Reset Interrupt. ME either directly requested
|
|
+ * this reset, or it was expected as part of a defined flow
|
|
+ * in the EDS.
|
|
+ *
|
|
+ * TOUCH_STATUS_QUIESCE_IO_IN_PROGRESS:
|
|
+ * Indicates that Quiesce I/O is already in progress and this
|
|
+ * command cannot be accepted at this time.
|
|
+ *
|
|
+ * TOUCH_STATUS_TIMEOUT:
|
|
+ * Sensor did not generate a reset interrupt in the time allotted.
|
|
+ * Could indicate sensor is not connected or malfunctioning.
|
|
+ */
|
|
+struct touch_sensor_hid_ready_for_data_rsp_data {
|
|
+ // Size of the data the ME DMA'd into a RawDataBuffer.
|
|
+ // Valid only when Status == TOUCH_STATUS_SUCCESS
|
|
+ u32 data_size;
|
|
+
|
|
+ // Index to indicate which RawDataBuffer was used.
|
|
+ // Valid only when Status == TOUCH_STATUS_SUCCESS
|
|
+ u8 touch_data_buffer_index;
|
|
+
|
|
+ // If Status is TOUCH_STATUS_SENSOR_EXPECTED_RESET, ME will provide
|
|
+ // the cause. See TOUCH_RESET_REASON.
|
|
+ u8 reset_reason;
|
|
+
|
|
+ // For future expansion
|
|
+ u8 reserved1[2];
|
|
+ u32 reserved2[5];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_hid_ready_for_data_rsp_data) == 28);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_FEEDBACK_READY_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_FEEDBACK_READY_CMD. This code will be followed
|
|
+ * by TOUCH_SENSOR_FEEDBACK_READY_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and any feedback or
|
|
+ * commands were sent to sensor.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ *
|
|
+ * TOUCH_STATUS_INVALID_PARAMS:
|
|
+ * Input parameters are out of range.
|
|
+ *
|
|
+ * TOUCH_STATUS_COMPAT_CHECK_FAIL:
|
|
+ * Indicates ProtocolVer does not match ME supported
|
|
+ * version. (non-fatal error)
|
|
+ *
|
|
+ * TOUCH_STATUS_INTERNAL_ERROR:
|
|
+ * Unexpected error occurred. This should not normally be seen.
|
|
+ *
|
|
+ * TOUCH_STATUS_OUT_OF_MEMORY:
|
|
+ * Insufficient space to store Calibration Data
|
|
+ */
|
|
+struct touch_sensor_feedback_ready_rsp_data {
|
|
+ // Index value from 0 to TOUCH_SENSOR_MAX_DATA_BUFFERS used
|
|
+ // to indicate which Feedback Buffer to use
|
|
+ u8 feedback_index;
|
|
+
|
|
+ // For future expansion
|
|
+ u8 reserved1[3];
|
|
+ u32 reserved2[6];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_feedback_ready_rsp_data) == 28);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_CLEAR_MEM_WINDOW_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_CLEAR_MEM_WINDOW_CMD. This code will be followed
|
|
+ * by TOUCH_SENSOR_CLEAR_MEM_WINDOW_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and memory window was set.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ *
|
|
+ * TOUCH_STATUS_INVALID_PARAMS:
|
|
+ * Input parameters are out of range.
|
|
+ *
|
|
+ * TOUCH_STATUS_QUIESCE_IO_IN_PROGRESS:
|
|
+ * Indicates that Quiesce I/O is already in progress and this
|
|
+ * command cannot be accepted at this time.
|
|
+ */
|
|
+struct touch_sensor_clear_mem_window_rsp_data {
|
|
+ // For future expansion
|
|
+ u32 reserved[3];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_clear_mem_window_rsp_data) == 12);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_NOTIFY_DEV_READY_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_NOTIFY_DEV_READY_CMD. This code will be followed
|
|
+ * by TOUCH_SENSOR_NOTIFY_DEV_READY_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and sensor has
|
|
+ * been detected by ME FW.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size.
|
|
+ *
|
|
+ * TOUCH_STATUS_REQUEST_OUTSTANDING:
|
|
+ * Previous request is still outstanding, ME FW cannot handle
|
|
+ * another request for the same command.
|
|
+ *
|
|
+ * TOUCH_STATUS_TIMEOUT:
|
|
+ * Sensor did not generate a reset interrupt in the time allotted.
|
|
+ * Could indicate sensor is not connected or malfunctioning.
|
|
+ *
|
|
+ * TOUCH_STATUS_SENSOR_FAIL_FATAL:
|
|
+ * Sensor indicated a fatal error, further operation is not
|
|
+ * possible. Error details can be found in ErrReg.
|
|
+ *
|
|
+ * TOUCH_STATUS_SENSOR_FAIL_NONFATAL:
|
|
+ * Sensor indicated a non-fatal error. Error should be logged by
|
|
+ * caller and init flow can continue. Error details can be found
|
|
+ * in ErrReg.
|
|
+ */
|
|
+struct touch_sensor_notify_dev_ready_rsp_data {
|
|
+ // Value of sensor Error Register, field is only valid for
|
|
+ // Status == TOUCH_STATUS_SENSOR_FAIL_FATAL or
|
|
+ // TOUCH_STATUS_SENSOR_FAIL_NONFATAL
|
|
+ union touch_err_reg err_reg;
|
|
+
|
|
+ // For future expansion
|
|
+ u32 reserved[2];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_notify_dev_ready_rsp_data) == 12);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_SET_POLICIES_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_SET_POLICIES_CMD. This code will be followed
|
|
+ * by TOUCH_SENSOR_SET_POLICIES_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and new policies were set.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ *
|
|
+ * TOUCH_STATUS_INVALID_PARAMS:
|
|
+ * Input parameters are out of range.
|
|
+ */
|
|
+struct touch_sensor_set_policies_rsp_data {
|
|
+ // For future expansion
|
|
+ u32 reserved[3];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_set_policies_rsp_data) == 12);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_GET_POLICIES_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_GET_POLICIES_CMD. This code will be followed
|
|
+ * by TOUCH_SENSOR_GET_POLICIES_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and new policies were set.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ */
|
|
+struct touch_sensor_get_policies_rsp_data {
|
|
+ // Contains the current policy
|
|
+ struct touch_policy_data policy_data;
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_get_policies_rsp_data) == 16);
|
|
+
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_RESET_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_RESET_CMD. This code will be followed
|
|
+ * by TOUCH_SENSOR_RESET_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and
|
|
+ * sensor reset was completed.
|
|
+ *
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ *
|
|
+ * TOUCH_STATUS_INVALID_PARAMS:
|
|
+ * Input parameters are out of range.
|
|
+ *
|
|
+ * TOUCH_STATUS_TIMEOUT:
|
|
+ * Sensor did not generate a reset interrupt in the time allotted.
|
|
+ * Could indicate sensor is not connected or malfunctioning.
|
|
+ *
|
|
+ * TOUCH_STATUS_RESET_FAILED:
|
|
+ * Sensor generated an invalid or unexpected interrupt.
|
|
+ *
|
|
+ * TOUCH_STATUS_QUIESCE_IO_IN_PROGRESS:
|
|
+ * Indicates that Quiesce I/O is already in progress and this
|
|
+ * command cannot be accepted at this time.
|
|
+ */
|
|
+struct touch_sensor_reset_rsp_data {
|
|
+ // For future expansion
|
|
+ u32 reserved[3];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_reset_rsp_data) == 12);
|
|
+
|
|
+/*
|
|
+ * TOUCH_SENSOR_READ_ALL_REGS_RSP code is sent in response to
|
|
+ * TOUCH_SENSOR_READ_ALL_REGS_CMD. This code will be followed
|
|
+ * by TOUCH_SENSOR_READ_ALL_REGS_RSP_DATA.
|
|
+ *
|
|
+ * Possible Status values:
|
|
+ * TOUCH_STATUS_SUCCESS:
|
|
+ * Command was processed successfully and new policies were set.
|
|
+ * TOUCH_STATUS_CMD_SIZE_ERROR:
|
|
+ * Command sent did not match expected size. Other fields will
|
|
+ * not contain valid data.
|
|
+ */
|
|
+struct touch_sensor_read_all_regs_rsp_data {
|
|
+ // Returns first 64 bytes of register space used for normal
|
|
+ // touch operation. Does not include test mode register.
|
|
+ struct touch_reg_block sensor_regs;
|
|
+ u32 reserved[4];
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_read_all_regs_rsp_data) == 80);
|
|
+
|
|
+/*
|
|
+ * ME to Host Message
|
|
+ */
|
|
+union touch_sensor_data_m2h {
|
|
+ struct touch_sensor_get_device_info_rsp_data device_info_rsp_data;
|
|
+ struct touch_sensor_set_mode_rsp_data set_mode_rsp_data;
|
|
+ struct touch_sensor_set_mem_window_rsp_data set_mem_window_rsp_data;
|
|
+ struct touch_sensor_quiesce_io_rsp_data quiesce_io_rsp_data;
|
|
+
|
|
+ struct touch_sensor_hid_ready_for_data_rsp_data
|
|
+ hid_ready_for_data_rsp_data;
|
|
+
|
|
+ struct touch_sensor_feedback_ready_rsp_data feedback_ready_rsp_data;
|
|
+ struct touch_sensor_clear_mem_window_rsp_data clear_mem_window_rsp_data;
|
|
+ struct touch_sensor_notify_dev_ready_rsp_data notify_dev_ready_rsp_data;
|
|
+ struct touch_sensor_set_policies_rsp_data set_policies_rsp_data;
|
|
+ struct touch_sensor_get_policies_rsp_data get_policies_rsp_data;
|
|
+ struct touch_sensor_reset_rsp_data reset_rsp_data;
|
|
+ struct touch_sensor_read_all_regs_rsp_data read_all_regs_rsp_data;
|
|
+};
|
|
+struct touch_sensor_msg_m2h {
|
|
+ u32 command_code;
|
|
+ enum touch_status status;
|
|
+ union touch_sensor_data_m2h m2h_data;
|
|
+};
|
|
+static_assert(sizeof(struct touch_sensor_msg_m2h) == 88);
|
|
+
|
|
+#pragma pack()
|
|
+
|
|
+#endif // _IPTS_MEI_MSGS_H_
|
|
diff --git a/drivers/misc/ipts/mei.c b/drivers/misc/ipts/mei.c
|
|
new file mode 100644
|
|
index 0000000000000..03b5d747a728f
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/mei.c
|
|
@@ -0,0 +1,238 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/dma-mapping.h>
|
|
+#include <linux/hid.h>
|
|
+#include <linux/ipts-binary.h>
|
|
+#include <linux/kthread.h>
|
|
+#include <linux/mei_cl_bus.h>
|
|
+#include <linux/module.h>
|
|
+#include <linux/mod_devicetable.h>
|
|
+
|
|
+#include "companion.h"
|
|
+#include "hid.h"
|
|
+#include "ipts.h"
|
|
+#include "params.h"
|
|
+#include "msg-handler.h"
|
|
+#include "mei-msgs.h"
|
|
+#include "state.h"
|
|
+
|
|
+#define IPTS_DRIVER_NAME "ipts"
|
|
+#define IPTS_MEI_UUID UUID_LE(0x3e8d0870, 0x271a, 0x4208, \
|
|
+ 0x8e, 0xb5, 0x9a, 0xcb, 0x94, 0x02, 0xae, 0x04)
|
|
+
|
|
+static struct mei_cl_device_id ipts_mei_cl_tbl[] = {
|
|
+ { "", IPTS_MEI_UUID, MEI_CL_VERSION_ANY },
|
|
+ { }
|
|
+};
|
|
+MODULE_DEVICE_TABLE(mei, ipts_mei_cl_tbl);
|
|
+
|
|
+static ssize_t device_info_show(struct device *dev,
|
|
+ struct device_attribute *attr, char *buf)
|
|
+{
|
|
+ struct ipts_info *ipts;
|
|
+
|
|
+ ipts = dev_get_drvdata(dev);
|
|
+ return sprintf(buf, "vendor id = 0x%04hX\ndevice id = 0x%04hX\n"
|
|
+ "HW rev = 0x%08X\nfirmware rev = 0x%08X\n",
|
|
+ ipts->device_info.vendor_id, ipts->device_info.device_id,
|
|
+ ipts->device_info.hw_rev, ipts->device_info.fw_rev);
|
|
+}
|
|
+static DEVICE_ATTR_RO(device_info);
|
|
+
|
|
+static struct attribute *ipts_attrs[] = {
|
|
+ &dev_attr_device_info.attr,
|
|
+ NULL
|
|
+};
|
|
+
|
|
+static const struct attribute_group ipts_grp = {
|
|
+ .attrs = ipts_attrs,
|
|
+};
|
|
+
|
|
+static void raw_data_work_func(struct work_struct *work)
|
|
+{
|
|
+ struct ipts_info *ipts = container_of(work,
|
|
+ struct ipts_info, raw_data_work);
|
|
+
|
|
+ ipts_handle_processed_data(ipts);
|
|
+}
|
|
+
|
|
+static void gfx_status_work_func(struct work_struct *work)
|
|
+{
|
|
+ struct ipts_info *ipts = container_of(work, struct ipts_info,
|
|
+ gfx_status_work);
|
|
+ enum ipts_state state;
|
|
+ int status = ipts->gfx_status;
|
|
+
|
|
+ ipts_dbg(ipts, "notify gfx status : %d\n", status);
|
|
+
|
|
+ state = ipts_get_state(ipts);
|
|
+
|
|
+ if (state != IPTS_STA_RAW_DATA_STARTED && state != IPTS_STA_HID_STARTED)
|
|
+ return;
|
|
+
|
|
+ if (status == IPTS_NOTIFY_STA_BACKLIGHT_ON && !ipts->display_status) {
|
|
+ ipts_send_sensor_clear_mem_window_cmd(ipts);
|
|
+ ipts->display_status = true;
|
|
+ }
|
|
+
|
|
+ if (status == IPTS_NOTIFY_STA_BACKLIGHT_OFF && ipts->display_status) {
|
|
+ ipts_send_sensor_quiesce_io_cmd(ipts);
|
|
+ ipts->display_status = false;
|
|
+ }
|
|
+}
|
|
+
|
|
+// event loop
|
|
+static int ipts_mei_cl_event_thread(void *data)
|
|
+{
|
|
+ struct ipts_info *ipts = (struct ipts_info *)data;
|
|
+ struct mei_cl_device *cldev = ipts->cldev;
|
|
+ ssize_t msg_len;
|
|
+ struct touch_sensor_msg_m2h m2h_msg;
|
|
+
|
|
+ while (!kthread_should_stop()) {
|
|
+ msg_len = mei_cldev_recv(cldev,
|
|
+ (u8 *)&m2h_msg, sizeof(m2h_msg));
|
|
+ if (msg_len <= 0) {
|
|
+ ipts_err(ipts, "error in reading m2h msg\n");
|
|
+ continue;
|
|
+ }
|
|
+
|
|
+ if (ipts_handle_resp(ipts, &m2h_msg, msg_len) != 0)
|
|
+ ipts_err(ipts, "error in handling resp msg\n");
|
|
+ }
|
|
+
|
|
+ ipts_dbg(ipts, "!! end event loop !!\n");
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void init_work_func(struct work_struct *work)
|
|
+{
|
|
+ struct ipts_info *ipts = container_of(work,
|
|
+ struct ipts_info, init_work);
|
|
+
|
|
+ ipts->sensor_mode = TOUCH_SENSOR_MODE_RAW_DATA;
|
|
+ ipts->display_status = true;
|
|
+
|
|
+ ipts_start(ipts);
|
|
+}
|
|
+
|
|
+static int ipts_mei_cl_probe(struct mei_cl_device *cldev,
|
|
+ const struct mei_cl_device_id *id)
|
|
+{
|
|
+ int ret = 0;
|
|
+ struct ipts_info *ipts = NULL;
|
|
+
|
|
+ // Check if a companion driver for firmware loading was registered
|
|
+ // If not, defer probing until it was properly registered
|
|
+ if (!ipts_companion_available() && !ipts_modparams.ignore_companion)
|
|
+ return -EPROBE_DEFER;
|
|
+
|
|
+ pr_info("probing Intel Precise Touch & Stylus\n");
|
|
+
|
|
+ // setup the DMA BIT mask, the system will choose the best possible
|
|
+ if (dma_coerce_mask_and_coherent(&cldev->dev, DMA_BIT_MASK(64)) == 0) {
|
|
+ pr_info("IPTS using DMA_BIT_MASK(64)\n");
|
|
+ } else if (dma_coerce_mask_and_coherent(&cldev->dev,
|
|
+ DMA_BIT_MASK(32)) == 0) {
|
|
+ pr_info("IPTS using DMA_BIT_MASK(32)\n");
|
|
+ } else {
|
|
+ pr_err("IPTS: No suitable DMA available\n");
|
|
+ return -EFAULT;
|
|
+ }
|
|
+
|
|
+ ret = mei_cldev_enable(cldev);
|
|
+ if (ret < 0) {
|
|
+ pr_err("cannot enable IPTS\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ ipts = devm_kzalloc(&cldev->dev, sizeof(struct ipts_info), GFP_KERNEL);
|
|
+ if (ipts == NULL) {
|
|
+ ret = -ENOMEM;
|
|
+ goto disable_mei;
|
|
+ }
|
|
+
|
|
+ ipts->cldev = cldev;
|
|
+ mei_cldev_set_drvdata(cldev, ipts);
|
|
+ ipts->event_loop = kthread_run(ipts_mei_cl_event_thread, (void *)ipts,
|
|
+ "ipts_event_thread");
|
|
+
|
|
+ if (ipts_dbgfs_register(ipts, "ipts"))
|
|
+ pr_debug("cannot register debugfs for IPTS\n");
|
|
+
|
|
+ INIT_WORK(&ipts->init_work, init_work_func);
|
|
+ INIT_WORK(&ipts->raw_data_work, raw_data_work_func);
|
|
+ INIT_WORK(&ipts->gfx_status_work, gfx_status_work_func);
|
|
+
|
|
+ ret = sysfs_create_group(&cldev->dev.kobj, &ipts_grp);
|
|
+ if (ret != 0)
|
|
+ pr_debug("cannot create sysfs for IPTS\n");
|
|
+
|
|
+ schedule_work(&ipts->init_work);
|
|
+
|
|
+ return 0;
|
|
+
|
|
+disable_mei:
|
|
+ mei_cldev_disable(cldev);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static int ipts_mei_cl_remove(struct mei_cl_device *cldev)
|
|
+{
|
|
+ struct ipts_info *ipts = mei_cldev_get_drvdata(cldev);
|
|
+
|
|
+ ipts_stop(ipts);
|
|
+
|
|
+ sysfs_remove_group(&cldev->dev.kobj, &ipts_grp);
|
|
+ ipts_hid_release(ipts);
|
|
+ ipts_dbgfs_deregister(ipts);
|
|
+ mei_cldev_disable(cldev);
|
|
+
|
|
+ kthread_stop(ipts->event_loop);
|
|
+
|
|
+ pr_info("IPTS removed\n");
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static struct mei_cl_driver ipts_mei_cl_driver = {
|
|
+ .id_table = ipts_mei_cl_tbl,
|
|
+ .name = IPTS_DRIVER_NAME,
|
|
+ .probe = ipts_mei_cl_probe,
|
|
+ .remove = ipts_mei_cl_remove,
|
|
+};
|
|
+
|
|
+static int ipts_mei_cl_init(void)
|
|
+{
|
|
+ int ret;
|
|
+
|
|
+ pr_info("IPTS %s() is called\n", __func__);
|
|
+
|
|
+ ret = mei_cldev_driver_register(&ipts_mei_cl_driver);
|
|
+ if (ret) {
|
|
+ pr_err("unable to register IPTS mei client driver\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void __exit ipts_mei_cl_exit(void)
|
|
+{
|
|
+ pr_info("IPTS %s() is called\n", __func__);
|
|
+ mei_cldev_driver_unregister(&ipts_mei_cl_driver);
|
|
+}
|
|
+
|
|
+module_init(ipts_mei_cl_init);
|
|
+module_exit(ipts_mei_cl_exit);
|
|
+
|
|
+MODULE_DESCRIPTION("Intel(R) ME Interface Client Driver for IPTS");
|
|
+MODULE_LICENSE("GPL");
|
|
diff --git a/drivers/misc/ipts/msg-handler.c b/drivers/misc/ipts/msg-handler.c
|
|
new file mode 100644
|
|
index 0000000000000..9431b1dfc6e06
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/msg-handler.c
|
|
@@ -0,0 +1,405 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/mei_cl_bus.h>
|
|
+
|
|
+#include "hid.h"
|
|
+#include "ipts.h"
|
|
+#include "mei-msgs.h"
|
|
+#include "resource.h"
|
|
+
|
|
+#define rsp_failed(ipts, cmd, status) \
|
|
+ ipts_err(ipts, "0x%08x failed status = %d\n", cmd, status)
|
|
+
|
|
+int ipts_handle_cmd(struct ipts_info *ipts, u32 cmd, void *data, int data_size)
|
|
+{
|
|
+ int ret = 0;
|
|
+ int len = 0;
|
|
+ struct touch_sensor_msg_h2m h2m_msg;
|
|
+
|
|
+ memset(&h2m_msg, 0, sizeof(h2m_msg));
|
|
+
|
|
+ h2m_msg.command_code = cmd;
|
|
+ len = sizeof(h2m_msg.command_code) + data_size;
|
|
+
|
|
+ if (data != NULL && data_size != 0)
|
|
+ memcpy(&h2m_msg.h2m_data, data, data_size); // copy payload
|
|
+
|
|
+ ret = mei_cldev_send(ipts->cldev, (u8 *)&h2m_msg, len);
|
|
+ if (ret < 0) {
|
|
+ ipts_err(ipts, "mei_cldev_send() error 0x%X:%d\n", cmd, ret);
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+int ipts_send_feedback(struct ipts_info *ipts, int buffer_idx,
|
|
+ u32 transaction_id)
|
|
+{
|
|
+ struct ipts_buffer_info feedback_buffer;
|
|
+ struct touch_feedback_hdr *feedback;
|
|
+ struct touch_sensor_feedback_ready_cmd_data cmd;
|
|
+
|
|
+ feedback_buffer = ipts->resource.feedback_buffer[buffer_idx];
|
|
+ feedback = (struct touch_feedback_hdr *)feedback_buffer.addr;
|
|
+
|
|
+ memset(feedback, 0, sizeof(struct touch_feedback_hdr));
|
|
+ memset(&cmd, 0, sizeof(struct touch_sensor_feedback_ready_cmd_data));
|
|
+
|
|
+ feedback->feedback_cmd_type = TOUCH_FEEDBACK_CMD_TYPE_NONE;
|
|
+ feedback->buffer_id = transaction_id;
|
|
+
|
|
+ cmd.feedback_index = buffer_idx;
|
|
+ cmd.transaction_id = transaction_id;
|
|
+
|
|
+ return ipts_handle_cmd(ipts, TOUCH_SENSOR_FEEDBACK_READY_CMD,
|
|
+ &cmd, sizeof(struct touch_sensor_feedback_ready_cmd_data));
|
|
+}
|
|
+
|
|
+int ipts_send_sensor_quiesce_io_cmd(struct ipts_info *ipts)
|
|
+{
|
|
+ int cmd_len = sizeof(struct touch_sensor_quiesce_io_cmd_data);
|
|
+ struct touch_sensor_quiesce_io_cmd_data quiesce_io_cmd;
|
|
+
|
|
+ memset(&quiesce_io_cmd, 0, cmd_len);
|
|
+
|
|
+ return ipts_handle_cmd(ipts, TOUCH_SENSOR_QUIESCE_IO_CMD,
|
|
+ &quiesce_io_cmd, cmd_len);
|
|
+}
|
|
+
|
|
+int ipts_send_sensor_hid_ready_for_data_cmd(struct ipts_info *ipts)
|
|
+{
|
|
+ return ipts_handle_cmd(ipts,
|
|
+ TOUCH_SENSOR_HID_READY_FOR_DATA_CMD, NULL, 0);
|
|
+}
|
|
+
|
|
+int ipts_send_sensor_clear_mem_window_cmd(struct ipts_info *ipts)
|
|
+{
|
|
+ return ipts_handle_cmd(ipts,
|
|
+ TOUCH_SENSOR_CLEAR_MEM_WINDOW_CMD, NULL, 0);
|
|
+}
|
|
+
|
|
+static int check_validity(struct touch_sensor_msg_m2h *m2h_msg, u32 msg_len)
|
|
+{
|
|
+ int ret = 0;
|
|
+ int valid_msg_len = sizeof(m2h_msg->command_code);
|
|
+ u32 cmd_code = m2h_msg->command_code;
|
|
+
|
|
+ switch (cmd_code) {
|
|
+ case TOUCH_SENSOR_SET_MODE_RSP:
|
|
+ valid_msg_len +=
|
|
+ sizeof(struct touch_sensor_set_mode_rsp_data);
|
|
+ break;
|
|
+ case TOUCH_SENSOR_SET_MEM_WINDOW_RSP:
|
|
+ valid_msg_len +=
|
|
+ sizeof(struct touch_sensor_set_mem_window_rsp_data);
|
|
+ break;
|
|
+ case TOUCH_SENSOR_QUIESCE_IO_RSP:
|
|
+ valid_msg_len +=
|
|
+ sizeof(struct touch_sensor_quiesce_io_rsp_data);
|
|
+ break;
|
|
+ case TOUCH_SENSOR_HID_READY_FOR_DATA_RSP:
|
|
+ valid_msg_len +=
|
|
+ sizeof(struct touch_sensor_hid_ready_for_data_rsp_data);
|
|
+ break;
|
|
+ case TOUCH_SENSOR_FEEDBACK_READY_RSP:
|
|
+ valid_msg_len +=
|
|
+ sizeof(struct touch_sensor_feedback_ready_rsp_data);
|
|
+ break;
|
|
+ case TOUCH_SENSOR_CLEAR_MEM_WINDOW_RSP:
|
|
+ valid_msg_len +=
|
|
+ sizeof(struct touch_sensor_clear_mem_window_rsp_data);
|
|
+ break;
|
|
+ case TOUCH_SENSOR_NOTIFY_DEV_READY_RSP:
|
|
+ valid_msg_len +=
|
|
+ sizeof(struct touch_sensor_notify_dev_ready_rsp_data);
|
|
+ break;
|
|
+ case TOUCH_SENSOR_SET_POLICIES_RSP:
|
|
+ valid_msg_len +=
|
|
+ sizeof(struct touch_sensor_set_policies_rsp_data);
|
|
+ break;
|
|
+ case TOUCH_SENSOR_GET_POLICIES_RSP:
|
|
+ valid_msg_len +=
|
|
+ sizeof(struct touch_sensor_get_policies_rsp_data);
|
|
+ break;
|
|
+ case TOUCH_SENSOR_RESET_RSP:
|
|
+ valid_msg_len +=
|
|
+ sizeof(struct touch_sensor_reset_rsp_data);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ if (valid_msg_len != msg_len)
|
|
+ return -EINVAL;
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+int ipts_start(struct ipts_info *ipts)
|
|
+{
|
|
+ /*
|
|
+ * TODO: check if we need to do SET_POLICIES_CMD we need to do this
|
|
+ * when protocol version doesn't match with reported one how we keep
|
|
+ * vendor specific data is the first thing to solve.
|
|
+ */
|
|
+ ipts_set_state(ipts, IPTS_STA_INIT);
|
|
+ ipts->num_of_parallel_data_buffers = TOUCH_SENSOR_MAX_DATA_BUFFERS;
|
|
+
|
|
+ // start with RAW_DATA
|
|
+ ipts->sensor_mode = TOUCH_SENSOR_MODE_RAW_DATA;
|
|
+
|
|
+ return ipts_handle_cmd(ipts,
|
|
+ TOUCH_SENSOR_NOTIFY_DEV_READY_CMD, NULL, 0);
|
|
+}
|
|
+
|
|
+void ipts_stop(struct ipts_info *ipts)
|
|
+{
|
|
+ enum ipts_state old_state = ipts_get_state(ipts);
|
|
+
|
|
+ ipts_set_state(ipts, IPTS_STA_STOPPING);
|
|
+
|
|
+ ipts_send_sensor_quiesce_io_cmd(ipts);
|
|
+ ipts_send_sensor_clear_mem_window_cmd(ipts);
|
|
+
|
|
+ if (old_state < IPTS_STA_RESOURCE_READY)
|
|
+ return;
|
|
+
|
|
+ if (old_state == IPTS_STA_RAW_DATA_STARTED ||
|
|
+ old_state == IPTS_STA_HID_STARTED) {
|
|
+ ipts_free_default_resource(ipts);
|
|
+ ipts_free_raw_data_resource(ipts);
|
|
+ }
|
|
+}
|
|
+
|
|
+int ipts_restart(struct ipts_info *ipts)
|
|
+{
|
|
+ ipts_dbg(ipts, "ipts restart\n");
|
|
+ ipts_stop(ipts);
|
|
+
|
|
+ ipts_send_sensor_quiesce_io_cmd(ipts);
|
|
+ ipts->restart = true;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+int ipts_handle_resp(struct ipts_info *ipts,
|
|
+ struct touch_sensor_msg_m2h *m2h_msg, u32 msg_len)
|
|
+{
|
|
+ int ret = 0;
|
|
+ int rsp_status = 0;
|
|
+ int cmd_status = 0;
|
|
+ int cmd_len = 0;
|
|
+ u32 cmd;
|
|
+
|
|
+ if (!check_validity(m2h_msg, msg_len)) {
|
|
+ ipts_err(ipts, "wrong rsp\n");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ rsp_status = m2h_msg->status;
|
|
+ cmd = m2h_msg->command_code;
|
|
+
|
|
+ switch (cmd) {
|
|
+ case TOUCH_SENSOR_NOTIFY_DEV_READY_RSP: {
|
|
+ if (rsp_status != TOUCH_STATUS_SENSOR_FAIL_NONFATAL &&
|
|
+ rsp_status != 0) {
|
|
+ rsp_failed(ipts, cmd, rsp_status);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ cmd_status = ipts_handle_cmd(ipts,
|
|
+ TOUCH_SENSOR_GET_DEVICE_INFO_CMD, NULL, 0);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ case TOUCH_SENSOR_GET_DEVICE_INFO_RSP: {
|
|
+ if (rsp_status != TOUCH_STATUS_COMPAT_CHECK_FAIL &&
|
|
+ rsp_status != 0) {
|
|
+ rsp_failed(ipts, cmd, rsp_status);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ memcpy(&ipts->device_info,
|
|
+ &m2h_msg->m2h_data.device_info_rsp_data,
|
|
+ sizeof(struct touch_sensor_get_device_info_rsp_data));
|
|
+
|
|
+ /*
|
|
+ * TODO: support raw_request during HID init. Although HID
|
|
+ * init happens here, technically most of reports
|
|
+ * (for both direction) can be issued only after
|
|
+ * SET_MEM_WINDOWS_CMD since they may require ME or touch IC.
|
|
+ * If ipts vendor requires raw_request during HID init, we
|
|
+ * need to consider to move HID init.
|
|
+ */
|
|
+ if (ipts->hid_desc_ready == false) {
|
|
+ ret = ipts_hid_init(ipts);
|
|
+ if (ret)
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ cmd_status = ipts_send_sensor_clear_mem_window_cmd(ipts);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ case TOUCH_SENSOR_CLEAR_MEM_WINDOW_RSP: {
|
|
+ struct touch_sensor_set_mode_cmd_data sensor_mode_cmd;
|
|
+
|
|
+ if (rsp_status != TOUCH_STATUS_TIMEOUT && rsp_status != 0) {
|
|
+ rsp_failed(ipts, cmd, rsp_status);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ if (ipts_get_state(ipts) == IPTS_STA_STOPPING)
|
|
+ break;
|
|
+
|
|
+ // allocate default resource: common & hid only
|
|
+ if (!ipts_is_default_resource_ready(ipts)) {
|
|
+ ret = ipts_allocate_default_resource(ipts);
|
|
+ if (ret)
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ if (ipts->sensor_mode == TOUCH_SENSOR_MODE_RAW_DATA &&
|
|
+ !ipts_is_raw_data_resource_ready(ipts)) {
|
|
+ ret = ipts_allocate_raw_data_resource(ipts);
|
|
+ if (ret) {
|
|
+ ipts_free_default_resource(ipts);
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ ipts_set_state(ipts, IPTS_STA_RESOURCE_READY);
|
|
+
|
|
+ cmd_len = sizeof(struct touch_sensor_set_mode_cmd_data);
|
|
+ memset(&sensor_mode_cmd, 0, cmd_len);
|
|
+
|
|
+ sensor_mode_cmd.sensor_mode = ipts->sensor_mode;
|
|
+ cmd_status = ipts_handle_cmd(ipts, TOUCH_SENSOR_SET_MODE_CMD,
|
|
+ &sensor_mode_cmd, cmd_len);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ case TOUCH_SENSOR_SET_MODE_RSP: {
|
|
+ struct touch_sensor_set_mem_window_cmd_data smw_cmd;
|
|
+
|
|
+ if (rsp_status != 0) {
|
|
+ rsp_failed(ipts, cmd, rsp_status);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ cmd_len = sizeof(struct touch_sensor_set_mem_window_cmd_data);
|
|
+ memset(&smw_cmd, 0, cmd_len);
|
|
+
|
|
+ ipts_get_set_mem_window_cmd_data(ipts, &smw_cmd);
|
|
+ cmd_status = ipts_handle_cmd(ipts,
|
|
+ TOUCH_SENSOR_SET_MEM_WINDOW_CMD, &smw_cmd, cmd_len);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ case TOUCH_SENSOR_SET_MEM_WINDOW_RSP: {
|
|
+ if (rsp_status != 0) {
|
|
+ rsp_failed(ipts, cmd, rsp_status);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ cmd_status = ipts_send_sensor_hid_ready_for_data_cmd(ipts);
|
|
+ if (cmd_status)
|
|
+ break;
|
|
+
|
|
+ if (ipts->sensor_mode == TOUCH_SENSOR_MODE_HID)
|
|
+ ipts_set_state(ipts, IPTS_STA_HID_STARTED);
|
|
+ else if (ipts->sensor_mode == TOUCH_SENSOR_MODE_RAW_DATA)
|
|
+ ipts_set_state(ipts, IPTS_STA_RAW_DATA_STARTED);
|
|
+
|
|
+ ipts_dbg(ipts, "touch enabled %d\n", ipts_get_state(ipts));
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ case TOUCH_SENSOR_HID_READY_FOR_DATA_RSP: {
|
|
+ struct touch_sensor_hid_ready_for_data_rsp_data *hid_data;
|
|
+ enum ipts_state state;
|
|
+
|
|
+ if (rsp_status != TOUCH_STATUS_SENSOR_DISABLED &&
|
|
+ rsp_status != 0) {
|
|
+ rsp_failed(ipts, cmd, rsp_status);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ state = ipts_get_state(ipts);
|
|
+ if (ipts->sensor_mode == TOUCH_SENSOR_MODE_HID &&
|
|
+ state == IPTS_STA_HID_STARTED) {
|
|
+ hid_data =
|
|
+ &m2h_msg->m2h_data.hid_ready_for_data_rsp_data;
|
|
+
|
|
+ // HID mode only uses buffer 0
|
|
+ if (hid_data->touch_data_buffer_index != 0)
|
|
+ break;
|
|
+
|
|
+ // handle hid data
|
|
+ ipts_handle_hid_data(ipts, hid_data);
|
|
+ }
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ case TOUCH_SENSOR_FEEDBACK_READY_RSP: {
|
|
+ if (rsp_status != TOUCH_STATUS_COMPAT_CHECK_FAIL &&
|
|
+ rsp_status != TOUCH_STATUS_INVALID_PARAMS &&
|
|
+ rsp_status != 0) {
|
|
+ rsp_failed(ipts, cmd, rsp_status);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ if (m2h_msg->m2h_data.feedback_ready_rsp_data.feedback_index
|
|
+ == TOUCH_HID_2_ME_BUFFER_ID)
|
|
+ break;
|
|
+
|
|
+ if (ipts->sensor_mode == TOUCH_SENSOR_MODE_HID)
|
|
+ cmd_status = ipts_handle_cmd(ipts,
|
|
+ TOUCH_SENSOR_HID_READY_FOR_DATA_CMD, NULL, 0);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ case TOUCH_SENSOR_QUIESCE_IO_RSP: {
|
|
+ enum ipts_state state;
|
|
+
|
|
+ if (rsp_status != 0) {
|
|
+ rsp_failed(ipts, cmd, rsp_status);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ state = ipts_get_state(ipts);
|
|
+ if (state == IPTS_STA_STOPPING && ipts->restart) {
|
|
+ ipts_dbg(ipts, "restart\n");
|
|
+ ipts_start(ipts);
|
|
+ ipts->restart = 0;
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ // handle error in rsp_status
|
|
+ if (rsp_status != 0) {
|
|
+ switch (rsp_status) {
|
|
+ case TOUCH_STATUS_SENSOR_EXPECTED_RESET:
|
|
+ case TOUCH_STATUS_SENSOR_UNEXPECTED_RESET:
|
|
+ ipts_dbg(ipts, "sensor reset %d\n", rsp_status);
|
|
+ ipts_restart(ipts);
|
|
+ break;
|
|
+ default:
|
|
+ ipts_dbg(ipts, "cmd : 0x%08x, status %d\n",
|
|
+ cmd, rsp_status);
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ if (cmd_status)
|
|
+ ipts_restart(ipts);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
diff --git a/drivers/misc/ipts/msg-handler.h b/drivers/misc/ipts/msg-handler.h
|
|
new file mode 100644
|
|
index 0000000000000..eca4238adf4b1
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/msg-handler.h
|
|
@@ -0,0 +1,28 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_MSG_HANDLER_H_
|
|
+#define _IPTS_MSG_HANDLER_H_
|
|
+
|
|
+int ipts_start(struct ipts_info *ipts);
|
|
+void ipts_stop(struct ipts_info *ipts);
|
|
+int ipts_handle_cmd(struct ipts_info *ipts, u32 cmd, void *data, int data_size);
|
|
+
|
|
+int ipts_handle_resp(struct ipts_info *ipts,
|
|
+ struct touch_sensor_msg_m2h *m2h_msg, u32 msg_len);
|
|
+
|
|
+int ipts_send_feedback(struct ipts_info *ipts,
|
|
+ int buffer_idx, u32 transaction_id);
|
|
+
|
|
+int ipts_handle_processed_data(struct ipts_info *ipts);
|
|
+int ipts_send_sensor_quiesce_io_cmd(struct ipts_info *ipts);
|
|
+int ipts_send_sensor_hid_ready_for_data_cmd(struct ipts_info *ipts);
|
|
+int ipts_send_sensor_clear_mem_window_cmd(struct ipts_info *ipts);
|
|
+int ipts_restart(struct ipts_info *ipts);
|
|
+
|
|
+#endif /* _IPTS_MSG_HANDLER_H */
|
|
diff --git a/drivers/misc/ipts/params.c b/drivers/misc/ipts/params.c
|
|
new file mode 100644
|
|
index 0000000000000..3ea76ca8342a9
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/params.c
|
|
@@ -0,0 +1,42 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/moduleparam.h>
|
|
+
|
|
+#include "params.h"
|
|
+
|
|
+#define IPTS_PARAM(NAME, TYPE, PERM, DESC) \
|
|
+ module_param_named(NAME, ipts_modparams.NAME, TYPE, PERM); \
|
|
+ MODULE_PARM_DESC(NAME, DESC)
|
|
+
|
|
+struct ipts_params ipts_modparams = {
|
|
+ .ignore_fw_fallback = false,
|
|
+ .ignore_config_fallback = false,
|
|
+ .ignore_companion = false,
|
|
+
|
|
+ .debug = false,
|
|
+ .debug_thread = false,
|
|
+};
|
|
+
|
|
+IPTS_PARAM(ignore_fw_fallback, bool, 0400,
|
|
+ "Don't use the IPTS firmware fallback path. (default: false)"
|
|
+);
|
|
+IPTS_PARAM(ignore_config_fallback, bool, 0400,
|
|
+ "Don't try to load the IPTS firmware config from a file. (default: false)"
|
|
+);
|
|
+IPTS_PARAM(ignore_companion, bool, 0400,
|
|
+ "Don't use a companion driver to load firmware. (default: false)"
|
|
+);
|
|
+
|
|
+IPTS_PARAM(debug, bool, 0400,
|
|
+ "Enable IPTS debugging output. (default: false)"
|
|
+);
|
|
+IPTS_PARAM(debug_thread, bool, 0400,
|
|
+ "Periodically print the ME status into the kernel log. (default: false)"
|
|
+);
|
|
+
|
|
diff --git a/drivers/misc/ipts/params.h b/drivers/misc/ipts/params.h
|
|
new file mode 100644
|
|
index 0000000000000..c20546bacb086
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/params.h
|
|
@@ -0,0 +1,25 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_PARAMS_H_
|
|
+#define _IPTS_PARAMS_H_
|
|
+
|
|
+#include <linux/types.h>
|
|
+
|
|
+struct ipts_params {
|
|
+ bool ignore_fw_fallback;
|
|
+ bool ignore_config_fallback;
|
|
+ bool ignore_companion;
|
|
+
|
|
+ bool debug;
|
|
+ bool debug_thread;
|
|
+};
|
|
+
|
|
+extern struct ipts_params ipts_modparams;
|
|
+
|
|
+#endif // _IPTS_PARAMS_H_
|
|
diff --git a/drivers/misc/ipts/resource.c b/drivers/misc/ipts/resource.c
|
|
new file mode 100644
|
|
index 0000000000000..cfd212f2cac09
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/resource.c
|
|
@@ -0,0 +1,291 @@
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/dma-mapping.h>
|
|
+
|
|
+#include "ipts.h"
|
|
+#include "kernel.h"
|
|
+#include "mei-msgs.h"
|
|
+
|
|
+static void free_common_resource(struct ipts_info *ipts)
|
|
+{
|
|
+ char *addr;
|
|
+ struct ipts_buffer_info *feedback_buffer;
|
|
+ dma_addr_t dma_addr;
|
|
+ u32 buffer_size;
|
|
+ int i, num_of_parallels;
|
|
+
|
|
+ if (ipts->resource.me2hid_buffer) {
|
|
+ devm_kfree(&ipts->cldev->dev, ipts->resource.me2hid_buffer);
|
|
+ ipts->resource.me2hid_buffer = 0;
|
|
+ }
|
|
+
|
|
+ addr = ipts->resource.hid2me_buffer.addr;
|
|
+ dma_addr = ipts->resource.hid2me_buffer.dma_addr;
|
|
+ buffer_size = ipts->resource.hid2me_buffer_size;
|
|
+
|
|
+ if (ipts->resource.hid2me_buffer.addr) {
|
|
+ dmam_free_coherent(&ipts->cldev->dev, buffer_size,
|
|
+ addr, dma_addr);
|
|
+
|
|
+ ipts->resource.hid2me_buffer.addr = 0;
|
|
+ ipts->resource.hid2me_buffer.dma_addr = 0;
|
|
+ ipts->resource.hid2me_buffer_size = 0;
|
|
+ }
|
|
+
|
|
+ feedback_buffer = ipts->resource.feedback_buffer;
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+ for (i = 0; i < num_of_parallels; i++) {
|
|
+
|
|
+ if (!feedback_buffer[i].addr)
|
|
+ continue;
|
|
+
|
|
+ dmam_free_coherent(&ipts->cldev->dev,
|
|
+ ipts->device_info.feedback_size,
|
|
+ feedback_buffer[i].addr, feedback_buffer[i].dma_addr);
|
|
+
|
|
+ feedback_buffer[i].addr = 0;
|
|
+ feedback_buffer[i].dma_addr = 0;
|
|
+ }
|
|
+}
|
|
+
|
|
+static int allocate_common_resource(struct ipts_info *ipts)
|
|
+{
|
|
+ char *addr, *me2hid_addr;
|
|
+ struct ipts_buffer_info *feedback_buffer;
|
|
+ dma_addr_t dma_addr;
|
|
+ int i, ret = 0, num_of_parallels;
|
|
+ u32 buffer_size;
|
|
+
|
|
+ buffer_size = ipts->device_info.feedback_size;
|
|
+
|
|
+ addr = dmam_alloc_coherent(&ipts->cldev->dev, buffer_size, &dma_addr,
|
|
+ GFP_ATOMIC | __GFP_ZERO);
|
|
+ if (addr == NULL)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ me2hid_addr = devm_kzalloc(&ipts->cldev->dev, buffer_size, GFP_KERNEL);
|
|
+ if (me2hid_addr == NULL) {
|
|
+ ret = -ENOMEM;
|
|
+ goto release_resource;
|
|
+ }
|
|
+
|
|
+ ipts->resource.hid2me_buffer.addr = addr;
|
|
+ ipts->resource.hid2me_buffer.dma_addr = dma_addr;
|
|
+ ipts->resource.hid2me_buffer_size = buffer_size;
|
|
+ ipts->resource.me2hid_buffer = me2hid_addr;
|
|
+
|
|
+ feedback_buffer = ipts->resource.feedback_buffer;
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+
|
|
+ for (i = 0; i < num_of_parallels; i++) {
|
|
+ feedback_buffer[i].addr = dmam_alloc_coherent(&ipts->cldev->dev,
|
|
+ ipts->device_info.feedback_size,
|
|
+ &feedback_buffer[i].dma_addr, GFP_ATOMIC|__GFP_ZERO);
|
|
+
|
|
+ if (feedback_buffer[i].addr == NULL) {
|
|
+ ret = -ENOMEM;
|
|
+ goto release_resource;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+
|
|
+release_resource:
|
|
+ free_common_resource(ipts);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+void ipts_free_raw_data_resource(struct ipts_info *ipts)
|
|
+{
|
|
+ if (ipts_is_raw_data_resource_ready(ipts)) {
|
|
+ ipts->resource.raw_data_resource_ready = false;
|
|
+ ipts_release_kernels(ipts);
|
|
+ }
|
|
+}
|
|
+
|
|
+static int allocate_hid_resource(struct ipts_info *ipts)
|
|
+{
|
|
+ struct ipts_buffer_info *buffer_hid;
|
|
+
|
|
+ // hid mode uses only one touch data buffer
|
|
+ buffer_hid = &ipts->resource.touch_data_buffer_hid;
|
|
+ buffer_hid->addr = dmam_alloc_coherent(&ipts->cldev->dev,
|
|
+ ipts->device_info.frame_size, &buffer_hid->dma_addr,
|
|
+ GFP_ATOMIC|__GFP_ZERO);
|
|
+
|
|
+ if (buffer_hid->addr == NULL)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void free_hid_resource(struct ipts_info *ipts)
|
|
+{
|
|
+ struct ipts_buffer_info *buffer_hid;
|
|
+
|
|
+ buffer_hid = &ipts->resource.touch_data_buffer_hid;
|
|
+ if (buffer_hid->addr) {
|
|
+ dmam_free_coherent(&ipts->cldev->dev,
|
|
+ ipts->device_info.frame_size,
|
|
+ buffer_hid->addr, buffer_hid->dma_addr);
|
|
+
|
|
+ buffer_hid->addr = 0;
|
|
+ buffer_hid->dma_addr = 0;
|
|
+ }
|
|
+}
|
|
+
|
|
+int ipts_allocate_default_resource(struct ipts_info *ipts)
|
|
+{
|
|
+ int ret;
|
|
+
|
|
+ ret = allocate_common_resource(ipts);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "cannot allocate common resource\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ ret = allocate_hid_resource(ipts);
|
|
+ if (ret) {
|
|
+ ipts_dbg(ipts, "cannot allocate hid resource\n");
|
|
+ free_common_resource(ipts);
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ ipts->resource.default_resource_ready = true;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+void ipts_free_default_resource(struct ipts_info *ipts)
|
|
+{
|
|
+ if (ipts_is_default_resource_ready(ipts)) {
|
|
+ ipts->resource.default_resource_ready = false;
|
|
+ free_hid_resource(ipts);
|
|
+ free_common_resource(ipts);
|
|
+ }
|
|
+}
|
|
+
|
|
+int ipts_allocate_raw_data_resource(struct ipts_info *ipts)
|
|
+{
|
|
+ int ret = 0;
|
|
+
|
|
+ ret = ipts_init_kernels(ipts);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
+ ipts->resource.raw_data_resource_ready = true;
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void get_hid_only_smw_cmd_data(struct ipts_info *ipts,
|
|
+ struct touch_sensor_set_mem_window_cmd_data *data,
|
|
+ struct ipts_resource *resrc)
|
|
+{
|
|
+ struct ipts_buffer_info *touch_buf;
|
|
+ struct ipts_buffer_info *feedback_buf;
|
|
+
|
|
+ touch_buf = &resrc->touch_data_buffer_hid;
|
|
+ feedback_buf = &resrc->feedback_buffer[0];
|
|
+
|
|
+ data->touch_data_buffer_addr_lower[0] =
|
|
+ lower_32_bits(touch_buf->dma_addr);
|
|
+
|
|
+ data->touch_data_buffer_addr_upper[0] =
|
|
+ upper_32_bits(touch_buf->dma_addr);
|
|
+
|
|
+ data->feedback_buffer_addr_lower[0] =
|
|
+ lower_32_bits(feedback_buf->dma_addr);
|
|
+
|
|
+ data->feedback_buffer_addr_upper[0] =
|
|
+ upper_32_bits(feedback_buf->dma_addr);
|
|
+}
|
|
+
|
|
+static void get_raw_data_only_smw_cmd_data(struct ipts_info *ipts,
|
|
+ struct touch_sensor_set_mem_window_cmd_data *data,
|
|
+ struct ipts_resource *resrc)
|
|
+{
|
|
+ u64 wq_tail_phy_addr;
|
|
+ u64 cookie_phy_addr;
|
|
+ struct ipts_buffer_info *touch_buf;
|
|
+ struct ipts_buffer_info *feedback_buf;
|
|
+ int i, num_of_parallels;
|
|
+
|
|
+ touch_buf = resrc->touch_data_buffer_raw;
|
|
+ feedback_buf = resrc->feedback_buffer;
|
|
+
|
|
+ num_of_parallels = ipts_get_num_of_parallel_buffers(ipts);
|
|
+ for (i = 0; i < num_of_parallels; i++) {
|
|
+ data->touch_data_buffer_addr_lower[i] =
|
|
+ lower_32_bits(touch_buf[i].dma_addr);
|
|
+
|
|
+ data->touch_data_buffer_addr_upper[i] =
|
|
+ upper_32_bits(touch_buf[i].dma_addr);
|
|
+
|
|
+ data->feedback_buffer_addr_lower[i] =
|
|
+ lower_32_bits(feedback_buf[i].dma_addr);
|
|
+
|
|
+ data->feedback_buffer_addr_upper[i] =
|
|
+ upper_32_bits(feedback_buf[i].dma_addr);
|
|
+ }
|
|
+
|
|
+ wq_tail_phy_addr = resrc->wq_info.wq_tail_phy_addr;
|
|
+ data->tail_offset_addr_lower = lower_32_bits(wq_tail_phy_addr);
|
|
+ data->tail_offset_addr_upper = upper_32_bits(wq_tail_phy_addr);
|
|
+
|
|
+ cookie_phy_addr = resrc->wq_info.db_phy_addr +
|
|
+ resrc->wq_info.db_cookie_offset;
|
|
+
|
|
+ data->doorbell_cookie_addr_lower = lower_32_bits(cookie_phy_addr);
|
|
+ data->doorbell_cookie_addr_upper = upper_32_bits(cookie_phy_addr);
|
|
+ data->work_queue_size = resrc->wq_info.wq_size;
|
|
+ data->work_queue_item_size = resrc->wq_item_size;
|
|
+}
|
|
+
|
|
+void ipts_get_set_mem_window_cmd_data(struct ipts_info *ipts,
|
|
+ struct touch_sensor_set_mem_window_cmd_data *data)
|
|
+{
|
|
+ struct ipts_resource *resrc = &ipts->resource;
|
|
+
|
|
+ if (ipts->sensor_mode == TOUCH_SENSOR_MODE_RAW_DATA)
|
|
+ get_raw_data_only_smw_cmd_data(ipts, data, resrc);
|
|
+ else if (ipts->sensor_mode == TOUCH_SENSOR_MODE_HID)
|
|
+ get_hid_only_smw_cmd_data(ipts, data, resrc);
|
|
+
|
|
+ // hid2me is common for "raw data" and "hid"
|
|
+ data->hid2me_buffer_addr_lower =
|
|
+ lower_32_bits(resrc->hid2me_buffer.dma_addr);
|
|
+
|
|
+ data->hid2me_buffer_addr_upper =
|
|
+ upper_32_bits(resrc->hid2me_buffer.dma_addr);
|
|
+
|
|
+ data->hid2me_buffer_size = resrc->hid2me_buffer_size;
|
|
+}
|
|
+
|
|
+void ipts_set_input_buffer(struct ipts_info *ipts, int parallel_idx,
|
|
+ u8 *cpu_addr, u64 dma_addr)
|
|
+{
|
|
+ struct ipts_buffer_info *touch_buf;
|
|
+
|
|
+ touch_buf = ipts->resource.touch_data_buffer_raw;
|
|
+ touch_buf[parallel_idx].dma_addr = dma_addr;
|
|
+ touch_buf[parallel_idx].addr = cpu_addr;
|
|
+}
|
|
+
|
|
+void ipts_set_output_buffer(struct ipts_info *ipts, int parallel_idx,
|
|
+ int output_idx, u8 *cpu_addr, u64 dma_addr)
|
|
+{
|
|
+ struct ipts_buffer_info *output_buf;
|
|
+
|
|
+ output_buf = &ipts->resource.raw_data_mode_output_buffer
|
|
+ [parallel_idx][output_idx];
|
|
+
|
|
+ output_buf->dma_addr = dma_addr;
|
|
+ output_buf->addr = cpu_addr;
|
|
+}
|
|
diff --git a/drivers/misc/ipts/resource.h b/drivers/misc/ipts/resource.h
|
|
new file mode 100644
|
|
index 0000000000000..27b9c17fcb89a
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/resource.h
|
|
@@ -0,0 +1,26 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_RESOURCE_H_
|
|
+#define _IPTS_RESOURCE_H_
|
|
+
|
|
+int ipts_allocate_default_resource(struct ipts_info *ipts);
|
|
+void ipts_free_default_resource(struct ipts_info *ipts);
|
|
+int ipts_allocate_raw_data_resource(struct ipts_info *ipts);
|
|
+void ipts_free_raw_data_resource(struct ipts_info *ipts);
|
|
+
|
|
+void ipts_get_set_mem_window_cmd_data(struct ipts_info *ipts,
|
|
+ struct touch_sensor_set_mem_window_cmd_data *data);
|
|
+
|
|
+void ipts_set_input_buffer(struct ipts_info *ipts, int parallel_idx,
|
|
+ u8 *cpu_addr, u64 dma_addr);
|
|
+
|
|
+void ipts_set_output_buffer(struct ipts_info *ipts, int parallel_idx,
|
|
+ int output_idx, u8 *cpu_addr, u64 dma_addr);
|
|
+
|
|
+#endif // _IPTS_RESOURCE_H_
|
|
diff --git a/drivers/misc/ipts/sensor-regs.h b/drivers/misc/ipts/sensor-regs.h
|
|
new file mode 100644
|
|
index 0000000000000..c1afab48249b7
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/sensor-regs.h
|
|
@@ -0,0 +1,834 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2013-2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_SENSOR_REGS_H_
|
|
+#define _IPTS_SENSOR_REGS_H_
|
|
+
|
|
+#include <linux/build_bug.h>
|
|
+
|
|
+#pragma pack(1)
|
|
+
|
|
+// Define static_assert macro (which will be available after 5.1
|
|
+// and not available on 4.19 yet) to check structure size and fail
|
|
+// compile for unexpected mismatch.
|
|
+// Taken from upstream commit 6bab69c65013bed5fce9f101a64a84d0385b3946.
|
|
+#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
|
|
+#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
|
|
+
|
|
+/*
|
|
+ * Compatibility versions for this header file
|
|
+ */
|
|
+#define TOUCH_EDS_REV_MINOR 0
|
|
+#define TOUCH_EDS_REV_MAJOR 1
|
|
+#define TOUCH_EDS_INTF_REV 1
|
|
+#define TOUCH_PROTOCOL_VER 0
|
|
+
|
|
+/*
|
|
+ * Offset 00h: TOUCH_STS: Status Register
|
|
+ * This register is read by the SPI Controller immediately following
|
|
+ * an interrupt.
|
|
+ */
|
|
+#define TOUCH_STS_REG_OFFSET 0x00
|
|
+
|
|
+#define TOUCH_SYNC_BYTE_VALUE 0x5A
|
|
+
|
|
+/*
|
|
+ * Offset 04h: TOUCH_FRAME_CHAR: Frame Characteristics Register
|
|
+ * This registers describes the characteristics of each data frame read by the
|
|
+ * SPI Controller in response to a touch interrupt.
|
|
+ */
|
|
+#define TOUCH_FRAME_CHAR_REG_OFFSET 0x04
|
|
+
|
|
+/*
|
|
+ * Offset 08h: Touch Error Register
|
|
+ */
|
|
+#define TOUCH_ERR_REG_OFFSET 0x08
|
|
+
|
|
+/*
|
|
+ * Offset 10h: Touch Identification Register
|
|
+ */
|
|
+#define TOUCH_ID_REG_OFFSET 0x10
|
|
+#define TOUCH_ID_REG_VALUE 0x43495424
|
|
+
|
|
+/*
|
|
+ * Offset 14h: TOUCH_DATA_SZ: Touch Data Size Register
|
|
+ * This register describes the maximum size of frames and feedback data
|
|
+ */
|
|
+#define TOUCH_DATA_SZ_REG_OFFSET 0x14
|
|
+
|
|
+#define TOUCH_MAX_FRAME_SIZE_INCREMENT 64
|
|
+#define TOUCH_MAX_FEEDBACK_SIZE_INCREMENT 64
|
|
+
|
|
+/*
|
|
+ * Max allowed frame size 32KB
|
|
+ * Max allowed feedback size 16KB
|
|
+ */
|
|
+#define TOUCH_SENSOR_MAX_FRAME_SIZE (32 * 1024)
|
|
+#define TOUCH_SENSOR_MAX_FEEDBACK_SIZE (16 * 1024)
|
|
+
|
|
+/*
|
|
+ * Offset 18h: TOUCH_CAPABILITIES: Touch Capabilities Register
|
|
+ * This register informs the host as to the capabilities of the touch IC.
|
|
+ */
|
|
+#define TOUCH_CAPS_REG_OFFSET 0x18
|
|
+
|
|
+#define TOUCH_BULK_DATA_MAX_WRITE_INCREMENT 64
|
|
+
|
|
+/*
|
|
+ * Offset 1Ch: TOUCH_CFG: Touch Configuration Register
|
|
+ * This register allows the SPI Controller to configure the touch sensor as
|
|
+ * needed during touch operations.
|
|
+ */
|
|
+#define TOUCH_CFG_REG_OFFSET 0x1C
|
|
+
|
|
+/*
|
|
+ * Offset 20h: TOUCH_CMD: Touch Command Register
|
|
+ * This register is used for sending commands to the Touch IC.
|
|
+ */
|
|
+#define TOUCH_CMD_REG_OFFSET 0x20
|
|
+
|
|
+/*
|
|
+ * Offset 24h: Power Management Control
|
|
+ * This register is used for active power management. The Touch IC is allowed
|
|
+ * to mover from Doze or Armed to Sensing after a touch has occurred. All other
|
|
+ * transitions will be made at the request of the SPI Controller.
|
|
+ */
|
|
+#define TOUCH_PWR_MGMT_CTRL_REG_OFFSET 0x24
|
|
+
|
|
+/*
|
|
+ * Offset 28h: Vendor HW Information Register
|
|
+ * This register is used to relay Intel-assigned vendor ID information to the
|
|
+ * SPI Controller, which may be forwarded to SW running on the host CPU.
|
|
+ */
|
|
+#define TOUCH_VEN_HW_INFO_REG_OFFSET 0x28
|
|
+
|
|
+/*
|
|
+ * Offset 2Ch: HW Revision ID Register
|
|
+ * This register is used to relay vendor HW revision information to the SPI
|
|
+ * Controller which may be forwarded to SW running on the host CPU.
|
|
+ */
|
|
+#define TOUCH_HW_REV_REG_OFFSET 0x2C
|
|
+
|
|
+/*
|
|
+ * Offset 30h: FW Revision ID Register
|
|
+ * This register is used to relay vendor FW revision information to the SPI
|
|
+ * Controller which may be forwarded to SW running on the host CPU.
|
|
+ */
|
|
+#define TOUCH_FW_REV_REG_OFFSET 0x30
|
|
+
|
|
+/*
|
|
+ * Offset 34h: Compatibility Revision ID Register
|
|
+ * This register is used to relay vendor compatibility information to the SPI
|
|
+ * Controller which may be forwarded to SW running on the host CPU.
|
|
+ * Compatibility Information is a numeric value given by Intel to the Touch IC
|
|
+ * vendor based on the major and minor revision of the EDS supported. From a
|
|
+ * nomenclature point of view in an x.y revision number of the EDS, the major
|
|
+ * version is the value of x and the minor version is the value of y. For
|
|
+ * example, a Touch IC supporting an EDS version of 0.61 would contain a major
|
|
+ * version of 0 and a minor version of 61 in the register.
|
|
+ */
|
|
+#define TOUCH_COMPAT_REV_REG_OFFSET 0x34
|
|
+
|
|
+/*
|
|
+ * Touch Register Block is the full set of registers from offset 0x00h to 0x3F
|
|
+ * This is the entire set of registers needed for normal touch operation. It
|
|
+ * does not include test registers such as TOUCH_TEST_CTRL_REG
|
|
+ */
|
|
+#define TOUCH_REG_BLOCK_OFFSET TOUCH_STS_REG_OFFSET
|
|
+
|
|
+/*
|
|
+ * Offset 40h: Test Control Register
|
|
+ * This register
|
|
+ */
|
|
+#define TOUCH_TEST_CTRL_REG_OFFSET 0x40
|
|
+
|
|
+/*
|
|
+ * Offsets 0x000 to 0xFFF are reserved for Intel-defined Registers
|
|
+ */
|
|
+#define TOUCH_REGISTER_LIMIT 0xFFF
|
|
+
|
|
+/*
|
|
+ * Data Window: Address 0x1000-0x1FFFF
|
|
+ * The data window is reserved for writing and reading large quantities of
|
|
+ * data to and from the sensor.
|
|
+ */
|
|
+#define TOUCH_DATA_WINDOW_OFFSET 0x1000
|
|
+#define TOUCH_DATA_WINDOW_LIMIT 0x1FFFF
|
|
+
|
|
+#define TOUCH_SENSOR_MAX_OFFSET TOUCH_DATA_WINDOW_LIMIT
|
|
+
|
|
+enum touch_sts_reg_int_type {
|
|
+ // Touch Data Available
|
|
+ TOUCH_STS_REG_INT_TYPE_DATA_AVAIL = 0,
|
|
+
|
|
+ // Reset Occurred
|
|
+ TOUCH_STS_REG_INT_TYPE_RESET_OCCURRED,
|
|
+
|
|
+ // Error Occurred
|
|
+ TOUCH_STS_REG_INT_TYPE_ERROR_OCCURRED,
|
|
+
|
|
+ // Vendor specific data, treated same as raw frame
|
|
+ TOUCH_STS_REG_INT_TYPE_VENDOR_DATA,
|
|
+
|
|
+ // Get Features response data available
|
|
+ TOUCH_STS_REG_INT_TYPE_GET_FEATURES,
|
|
+
|
|
+ TOUCH_STS_REG_INT_TYPE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_sts_reg_int_type) == 4);
|
|
+
|
|
+enum touch_sts_reg_pwr_state {
|
|
+ // Sleep
|
|
+ TOUCH_STS_REG_PWR_STATE_SLEEP = 0,
|
|
+
|
|
+ // Doze
|
|
+ TOUCH_STS_REG_PWR_STATE_DOZE,
|
|
+
|
|
+ // Armed
|
|
+ TOUCH_STS_REG_PWR_STATE_ARMED,
|
|
+
|
|
+ // Sensing
|
|
+ TOUCH_STS_REG_PWR_STATE_SENSING,
|
|
+
|
|
+ TOUCH_STS_REG_PWR_STATE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_sts_reg_pwr_state) == 4);
|
|
+
|
|
+enum touch_sts_reg_init_state {
|
|
+ // Ready for normal operation
|
|
+ TOUCH_STS_REG_INIT_STATE_READY_FOR_OP = 0,
|
|
+
|
|
+ // Touch IC needs its Firmware loaded
|
|
+ TOUCH_STS_REG_INIT_STATE_FW_NEEDED,
|
|
+
|
|
+ // Touch IC needs its Data loaded
|
|
+ TOUCH_STS_REG_INIT_STATE_DATA_NEEDED,
|
|
+
|
|
+ // Error info in TOUCH_ERR_REG
|
|
+ TOUCH_STS_REG_INIT_STATE_INIT_ERROR,
|
|
+
|
|
+ TOUCH_STS_REG_INIT_STATE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_sts_reg_init_state) == 4);
|
|
+
|
|
+union touch_sts_reg {
|
|
+ u32 reg_value;
|
|
+ struct {
|
|
+ // When set, this indicates the hardware has data
|
|
+ // that needs to be read.
|
|
+ u32 int_status:1;
|
|
+
|
|
+ // see TOUCH_STS_REG_INT_TYPE
|
|
+ u32 int_type:4;
|
|
+
|
|
+ // see TOUCH_STS_REG_PWR_STATE
|
|
+ u32 pwr_state:2;
|
|
+
|
|
+ // see TOUCH_STS_REG_INIT_STATE
|
|
+ u32 init_state:2;
|
|
+
|
|
+ // Busy bit indicates that sensor cannot
|
|
+ // accept writes at this time
|
|
+ u32 busy:1;
|
|
+
|
|
+ // Reserved
|
|
+ u32 reserved:14;
|
|
+
|
|
+ // Synchronization bit, should always be TOUCH_SYNC_BYTE_VALUE
|
|
+ u32 sync_byte:8;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_sts_reg) == 4);
|
|
+
|
|
+union touch_frame_char_reg {
|
|
+ u32 reg_value;
|
|
+ struct {
|
|
+ // Micro-Frame Size (MFS): Indicates the size of a touch
|
|
+ // micro-frame in byte increments. When a micro-frame is to be
|
|
+ // read for processing (in data mode), this is the total number
|
|
+ // of bytes that must be read per interrupt, split into
|
|
+ // multiple read commands no longer than RPS.
|
|
+ // Maximum micro-frame size is 256KB.
|
|
+ u32 microframe_size:18;
|
|
+
|
|
+ // Micro-Frames per Frame (MFPF): Indicates the number of
|
|
+ // micro-frames per frame. If a sensor's frame does not contain
|
|
+ // micro-frames this value will be 1. Valid values are 1-31.
|
|
+ u32 microframes_per_frame:5;
|
|
+
|
|
+ // Micro-Frame Index (MFI): Indicates the index of the
|
|
+ // micro-frame within a frame. This allows the SPI Controller
|
|
+ // to maintain synchronization with the sensor and determine
|
|
+ // when the final micro-frame has arrived.
|
|
+ // Valid values are 1-31.
|
|
+ u32 microframe_index:5;
|
|
+
|
|
+ // HID/Raw Data: This bit describes whether the data from the
|
|
+ // sensor is Raw data or a HID report. When set, the data
|
|
+ // is a HID report.
|
|
+ u32 hid_report:1;
|
|
+
|
|
+ // Reserved
|
|
+ u32 reserved:3;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_frame_char_reg) == 4);
|
|
+
|
|
+// bit definition is vendor specific
|
|
+union touch_err_reg {
|
|
+ u32 reg_value;
|
|
+ struct {
|
|
+ u32 invalid_fw:1;
|
|
+ u32 invalid_data:1;
|
|
+ u32 self_test_failed:1;
|
|
+ u32 reserved:12;
|
|
+ u32 fatal_error:1;
|
|
+ u32 vendor_errors:16;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_err_reg) == 4);
|
|
+
|
|
+union touch_data_sz_reg {
|
|
+ u32 reg_value;
|
|
+ struct {
|
|
+ // This value describes the maximum frame size in
|
|
+ // 64byte increments.
|
|
+ u32 max_frame_size:12;
|
|
+
|
|
+ // This value describes the maximum feedback size in
|
|
+ // 64byte increments.
|
|
+ u32 max_feedback_size:8;
|
|
+
|
|
+ // Reserved
|
|
+ u32 reserved:12;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_data_sz_reg) == 4);
|
|
+
|
|
+enum touch_caps_reg_read_delay_time {
|
|
+ TOUCH_CAPS_REG_READ_DELAY_TIME_0,
|
|
+ TOUCH_CAPS_REG_READ_DELAY_TIME_10uS,
|
|
+ TOUCH_CAPS_REG_READ_DELAY_TIME_50uS,
|
|
+ TOUCH_CAPS_REG_READ_DELAY_TIME_100uS,
|
|
+ TOUCH_CAPS_REG_READ_DELAY_TIME_150uS,
|
|
+ TOUCH_CAPS_REG_READ_DELAY_TIME_250uS,
|
|
+ TOUCH_CAPS_REG_READ_DELAY_TIME_500uS,
|
|
+ TOUCH_CAPS_REG_READ_DELAY_TIME_1mS,
|
|
+};
|
|
+static_assert(sizeof(enum touch_caps_reg_read_delay_time) == 4);
|
|
+
|
|
+union touch_caps_reg {
|
|
+ u32 reg_value;
|
|
+ struct {
|
|
+ // Reserved for future frequency
|
|
+ u32 reserved0:1;
|
|
+
|
|
+ // 17 MHz (14 MHz on Atom) Supported
|
|
+ // 0b - Not supported, 1b - Supported
|
|
+ u32 supported_17Mhz:1;
|
|
+
|
|
+ // 30 MHz (25MHz on Atom) Supported
|
|
+ // 0b - Not supported, 1b - Supported
|
|
+ u32 supported_30Mhz:1;
|
|
+
|
|
+ // 50 MHz Supported
|
|
+ // 0b - Not supported, 1b - Supported
|
|
+ u32 supported_50Mhz:1;
|
|
+
|
|
+ // Reserved
|
|
+ u32 reserved1:4;
|
|
+
|
|
+ // Single I/O Supported
|
|
+ // 0b - Not supported, 1b - Supported
|
|
+ u32 supported_single_io:1;
|
|
+
|
|
+ // Dual I/O Supported
|
|
+ // 0b - Not supported, 1b - Supported
|
|
+ u32 supported_dual_io:1;
|
|
+
|
|
+ // Quad I/O Supported
|
|
+ // 0b - Not supported, 1b - Supported
|
|
+ u32 supported_quad_io:1;
|
|
+
|
|
+ // Bulk Data Area Max Write Size: The amount of data the SPI
|
|
+ // Controller can write to the bulk data area before it has to
|
|
+ // poll the busy bit. This field is in multiples of 64 bytes.
|
|
+ // The SPI Controller will write the amount of data specified
|
|
+ // in this field, then check and wait for the Status.Busy bit
|
|
+ // to be zero before writing the next data chunk. This field is
|
|
+ // 6 bits long, allowing for 4KB of contiguous writes w/o a
|
|
+ // poll of the busy bit. If this field is 0x00 the Touch IC has
|
|
+ // no limit in the amount of data the SPI Controller can write
|
|
+ // to the bulk data area.
|
|
+ u32 bulk_data_max_write:6;
|
|
+
|
|
+ // Read Delay Timer Value: This field describes the delay the
|
|
+ // SPI Controller will initiate when a read interrupt follows
|
|
+ // a write data command. Uses values from
|
|
+ // TOUCH_CAPS_REG_READ_DELAY_TIME
|
|
+ u32 read_delay_timer_value:3;
|
|
+
|
|
+ // Reserved
|
|
+ u32 reserved2:4;
|
|
+
|
|
+ // Maximum Touch Points: A byte value based on the
|
|
+ // HID descriptor definition.
|
|
+ u32 max_touch_points:8;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_caps_reg) == 4);
|
|
+
|
|
+enum touch_cfg_reg_bulk_xfer_size {
|
|
+ // Bulk Data Transfer Size is 4 bytes
|
|
+ TOUCH_CFG_REG_BULK_XFER_SIZE_4B = 0,
|
|
+
|
|
+ // Bulk Data Transfer Size is 8 bytes
|
|
+ TOUCH_CFG_REG_BULK_XFER_SIZE_8B,
|
|
+
|
|
+ // Bulk Data Transfer Size is 16 bytes
|
|
+ TOUCH_CFG_REG_BULK_XFER_SIZE_16B,
|
|
+
|
|
+ // Bulk Data Transfer Size is 32 bytes
|
|
+ TOUCH_CFG_REG_BULK_XFER_SIZE_32B,
|
|
+
|
|
+ // Bulk Data Transfer Size is 64 bytes
|
|
+ TOUCH_CFG_REG_BULK_XFER_SIZE_64B,
|
|
+
|
|
+ TOUCH_CFG_REG_BULK_XFER_SIZE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_cfg_reg_bulk_xfer_size) == 4);
|
|
+
|
|
+/*
|
|
+ * Frequency values used by TOUCH_CFG_REG
|
|
+ * and TOUCH_SENSOR_GET_DEVICE_INFO_RSP_DATA.
|
|
+ */
|
|
+enum touch_freq {
|
|
+ // Reserved value
|
|
+ TOUCH_FREQ_RSVD = 0,
|
|
+
|
|
+ // Sensor set for 17MHz operation (14MHz on Atom)
|
|
+ TOUCH_FREQ_17MHZ,
|
|
+
|
|
+ // Sensor set for 30MHz operation (25MHz on Atom)
|
|
+ TOUCH_FREQ_30MHZ,
|
|
+
|
|
+ // Invalid value
|
|
+ TOUCH_FREQ_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_freq) == 4);
|
|
+
|
|
+union touch_cfg_reg {
|
|
+ u32 reg_value;
|
|
+ struct {
|
|
+ // Touch Enable (TE): This bit is used as a HW semaphore for
|
|
+ // the Touch IC to guarantee to the SPI Controller to that
|
|
+ // (when 0) no sensing operations will occur and only the Reset
|
|
+ // interrupt will be generated.
|
|
+ //
|
|
+ // When TE is cleared by the SPI
|
|
+ // Controller:
|
|
+ // - TICs must flush all output buffers
|
|
+ // - TICs must De-assert any pending interrupt
|
|
+ // - ME must throw away any partial frame and pending
|
|
+ // interrupt must be cleared/not serviced.
|
|
+ //
|
|
+ // The SPI Controller will only modify the configuration of the
|
|
+ // TIC when TE is cleared.
|
|
+ // TE is defaulted to 0h on a power-on reset.
|
|
+ u32 touch_enable:1;
|
|
+
|
|
+ // Data/HID Packet Mode (DHPM)
|
|
+ // Raw Data Mode: 0h, HID Packet Mode: 1h
|
|
+ u32 dhpm:1;
|
|
+
|
|
+ // Bulk Data Transfer Size: This field represents the amount
|
|
+ // of data written to the Bulk Data Area
|
|
+ // (SPI Offset 0x1000-0x2FFF) in a single SPI write protocol
|
|
+ u32 bulk_xfer_size:4;
|
|
+
|
|
+ // Frequency Select: Frequency for the TouchIC to run at.
|
|
+ // Use values from TOUCH_FREQ
|
|
+ u32 freq_select:3;
|
|
+
|
|
+ // Reserved
|
|
+ u32 reserved:23;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_cfg_reg) == 4);
|
|
+
|
|
+enum touch_cmd_reg_code {
|
|
+ // No Operation
|
|
+ TOUCH_CMD_REG_CODE_NOP = 0,
|
|
+
|
|
+ // Soft Reset
|
|
+ TOUCH_CMD_REG_CODE_SOFT_RESET,
|
|
+
|
|
+ // Prepare All Registers for Read
|
|
+ TOUCH_CMD_REG_CODE_PREP_4_READ,
|
|
+
|
|
+ // Generate Test Packets according to value in TOUCH_TEST_CTRL_REG
|
|
+ TOUCH_CMD_REG_CODE_GEN_TEST_PACKETS,
|
|
+
|
|
+ TOUCH_CMD_REG_CODE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_cmd_reg_code) == 4);
|
|
+
|
|
+union touch_cmd_reg {
|
|
+ u32 reg_value;
|
|
+ struct {
|
|
+ // Command Code: See TOUCH_CMD_REG_CODE
|
|
+ u32 command_code:8;
|
|
+
|
|
+ // Reserved
|
|
+ u32 reserved:24;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_cmd_reg) == 4);
|
|
+
|
|
+enum touch_pwr_mgmt_ctrl_reg_cmd {
|
|
+ // No change to power state
|
|
+ TOUCH_PWR_MGMT_CTRL_REG_CMD_NOP = 0,
|
|
+
|
|
+ // Sleep - set when the system goes into connected standby
|
|
+ TOUCH_PWR_MGMT_CTRL_REG_CMD_SLEEP,
|
|
+
|
|
+ // Doze - set after 300 seconds of inactivity
|
|
+ TOUCH_PWR_MGMT_CTRL_REG_CMD_DOZE,
|
|
+
|
|
+ // Armed - Set by FW when a "finger off" message is
|
|
+ // received from the EUs
|
|
+ TOUCH_PWR_MGMT_CTRL_REG_CMD_ARMED,
|
|
+
|
|
+ // Sensing - not typically set by FW
|
|
+ TOUCH_PWR_MGMT_CTRL_REG_CMD_SENSING,
|
|
+
|
|
+ // Values will result in no change to the power state of the Touch IC
|
|
+ TOUCH_PWR_MGMT_CTRL_REG_CMD_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_pwr_mgmt_ctrl_reg_cmd) == 4);
|
|
+
|
|
+union touch_pwr_mgmt_ctrl_reg {
|
|
+ u32 reg_value;
|
|
+ struct {
|
|
+ // Power State Command: See TOUCH_PWR_MGMT_CTRL_REG_CMD
|
|
+ u32 pwr_state_cmd:3;
|
|
+
|
|
+ // Reserved
|
|
+ u32 reserved:29;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_pwr_mgmt_ctrl_reg) == 4);
|
|
+
|
|
+union touch_ven_hw_info_reg {
|
|
+ u32 reg_value;
|
|
+ struct {
|
|
+ // Touch Sensor Vendor ID
|
|
+ u32 vendor_id:16;
|
|
+
|
|
+ // Touch Sensor Device ID
|
|
+ u32 device_id:16;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_ven_hw_info_reg) == 4);
|
|
+
|
|
+union touch_compat_rev_reg {
|
|
+ u32 reg_value;
|
|
+
|
|
+ struct {
|
|
+ // EDS Minor Revision
|
|
+ u8 minor;
|
|
+
|
|
+ // EDS Major Revision
|
|
+ u8 major;
|
|
+
|
|
+ // Interface Revision Number (from EDS)
|
|
+ u8 intf_rev;
|
|
+
|
|
+ // EU Kernel Compatibility Version - vendor specific value
|
|
+ u8 kernel_compat_ver;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_compat_rev_reg) == 4);
|
|
+
|
|
+struct touch_reg_block {
|
|
+ // 0x00
|
|
+ union touch_sts_reg sts_reg;
|
|
+
|
|
+ // 0x04
|
|
+ union touch_frame_char_reg frame_char_reg;
|
|
+
|
|
+ // 0x08
|
|
+ union touch_err_reg error_reg;
|
|
+
|
|
+ // 0x0C
|
|
+ u32 reserved0;
|
|
+
|
|
+ // 0x10 - expected value is "$TIC" or 0x43495424
|
|
+ u32 id_reg;
|
|
+
|
|
+ // 0x14
|
|
+ union touch_data_sz_reg data_size_reg;
|
|
+
|
|
+ // 0x18
|
|
+ union touch_caps_reg caps_reg;
|
|
+
|
|
+ // 0x1C
|
|
+ union touch_cfg_reg cfg_reg;
|
|
+
|
|
+ // 0x20
|
|
+ union touch_cmd_reg cmd_reg;
|
|
+
|
|
+ // 0x24
|
|
+ union touch_pwr_mgmt_ctrl_reg pwm_mgme_ctrl_reg;
|
|
+
|
|
+ // 0x28
|
|
+ union touch_ven_hw_info_reg ven_hw_info_reg;
|
|
+
|
|
+ // 0x2C
|
|
+ u32 hw_rev_reg;
|
|
+
|
|
+ // 0x30
|
|
+ u32 fw_rev_reg;
|
|
+
|
|
+ // 0x34
|
|
+ union touch_compat_rev_reg compat_rev_reg;
|
|
+
|
|
+ // 0x38
|
|
+ u32 reserved1;
|
|
+
|
|
+ // 0x3C
|
|
+ u32 reserved2;
|
|
+};
|
|
+static_assert(sizeof(struct touch_reg_block) == 64);
|
|
+
|
|
+union touch_test_ctrl_reg {
|
|
+ u32 reg_value;
|
|
+ struct {
|
|
+ // Size of Test Frame in Raw Data Mode: This field specifies
|
|
+ // the test frame size in raw data mode in multiple of 64 bytes.
|
|
+ // For example, if this field value is 16, the test frame size
|
|
+ // will be 16x64 = 1K.
|
|
+ u32 raw_test_frame_size:16;
|
|
+
|
|
+ // Number of Raw Data Frames or HID Report Packets Generation.
|
|
+ // This field represents the number of test frames or HID
|
|
+ // reports to be generated when test mode is enabled. When
|
|
+ // multiple packets/frames are generated, they need be
|
|
+ // generated at 100 Hz frequency, i.e. 10ms per packet/frame.
|
|
+ u32 num_test_frames:16;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_test_ctrl_reg) == 4);
|
|
+
|
|
+/*
|
|
+ * The following data structures represent the headers defined in the Data
|
|
+ * Structures chapter of the Intel Integrated Touch EDS
|
|
+ */
|
|
+
|
|
+// Enumeration used in TOUCH_RAW_DATA_HDR
|
|
+enum touch_raw_data_types {
|
|
+ TOUCH_RAW_DATA_TYPE_FRAME = 0,
|
|
+
|
|
+ // RawData will be the TOUCH_ERROR struct below
|
|
+ TOUCH_RAW_DATA_TYPE_ERROR,
|
|
+
|
|
+ // Set when InterruptType is Vendor Data
|
|
+ TOUCH_RAW_DATA_TYPE_VENDOR_DATA,
|
|
+
|
|
+ TOUCH_RAW_DATA_TYPE_HID_REPORT,
|
|
+ TOUCH_RAW_DATA_TYPE_GET_FEATURES,
|
|
+ TOUCH_RAW_DATA_TYPE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_raw_data_types) == 4);
|
|
+
|
|
+// Private data structure. Kernels must copy to HID driver buffer
|
|
+struct touch_hid_private_data {
|
|
+ u32 transaction_id;
|
|
+ u8 reserved[28];
|
|
+};
|
|
+static_assert(sizeof(struct touch_hid_private_data) == 32);
|
|
+
|
|
+// This is the data structure sent from the PCH FW to the EU kernel
|
|
+struct touch_raw_data_hdr {
|
|
+ // use values from TOUCH_RAW_DATA_TYPES
|
|
+ u32 data_type;
|
|
+
|
|
+ // The size in bytes of the raw data read from the sensor, does not
|
|
+ // include TOUCH_RAW_DATA_HDR. Will be the sum of all uFrames, or size
|
|
+ // of TOUCH_ERROR for if DataType is TOUCH_RAW_DATA_TYPE_ERROR
|
|
+ u32 raw_data_size_bytes;
|
|
+
|
|
+ // An ID to qualify with the feedback data to track buffer usage
|
|
+ u32 buffer_id;
|
|
+
|
|
+ // Must match protocol version of the EDS
|
|
+ u32 protocol_ver;
|
|
+
|
|
+ // Copied from the Compatibility Revision ID Reg
|
|
+ u8 kernel_compat_id;
|
|
+
|
|
+ // Padding to extend header to full 64 bytes and allow for growth
|
|
+ u8 reserved[15];
|
|
+
|
|
+ // Private data structure. Kernels must copy to HID driver buffer
|
|
+ struct touch_hid_private_data hid_private_data;
|
|
+};
|
|
+static_assert(sizeof(struct touch_raw_data_hdr) == 64);
|
|
+
|
|
+struct touch_raw_data {
|
|
+ struct touch_raw_data_hdr header;
|
|
+
|
|
+ // used to access the raw data as an array and keep the compilers
|
|
+ // happy. Actual size of this array is Header.RawDataSizeBytes
|
|
+ u8 raw_data[1];
|
|
+};
|
|
+
|
|
+/*
|
|
+ * The following section describes the data passed in TOUCH_RAW_DATA.RawData
|
|
+ * when DataType equals TOUCH_RAW_DATA_TYPE_ERROR
|
|
+ * Note: This data structure is also applied to HID mode
|
|
+ */
|
|
+enum touch_err_types {
|
|
+ TOUCH_RAW_DATA_ERROR = 0,
|
|
+ TOUCH_RAW_ERROR_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_err_types) == 4);
|
|
+
|
|
+union touch_me_fw_error {
|
|
+ u32 value;
|
|
+ struct {
|
|
+ u32 invalid_frame_characteristics:1;
|
|
+ u32 microframe_index_invalid:1;
|
|
+ u32 reserved:30;
|
|
+ } fields;
|
|
+};
|
|
+static_assert(sizeof(union touch_me_fw_error) == 4);
|
|
+
|
|
+struct touch_error {
|
|
+ // This must be a value from TOUCH_ERROR_TYPES
|
|
+ u8 touch_error_type;
|
|
+ u8 reserved[3];
|
|
+ union touch_me_fw_error touch_me_fw_error;
|
|
+
|
|
+ // Contains the value copied from the Touch Error Reg
|
|
+ union touch_err_reg touch_error_register;
|
|
+};
|
|
+static_assert(sizeof(struct touch_error) == 12);
|
|
+
|
|
+// Enumeration used in TOUCH_FEEDBACK_BUFFER
|
|
+enum touch_feedback_cmd_types {
|
|
+ TOUCH_FEEDBACK_CMD_TYPE_NONE = 0,
|
|
+ TOUCH_FEEDBACK_CMD_TYPE_SOFT_RESET,
|
|
+ TOUCH_FEEDBACK_CMD_TYPE_GOTO_ARMED,
|
|
+ TOUCH_FEEDBACK_CMD_TYPE_GOTO_SENSING,
|
|
+ TOUCH_FEEDBACK_CMD_TYPE_GOTO_SLEEP,
|
|
+ TOUCH_FEEDBACK_CMD_TYPE_GOTO_DOZE,
|
|
+ TOUCH_FEEDBACK_CMD_TYPE_HARD_RESET,
|
|
+ TOUCH_FEEDBACK_CMD_TYPE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_feedback_cmd_types) == 4);
|
|
+
|
|
+// Enumeration used in TOUCH_FEEDBACK_HDR
|
|
+enum touch_feedback_data_types {
|
|
+ // This is vendor specific feedback to be written to the sensor
|
|
+ TOUCH_FEEDBACK_DATA_TYPE_FEEDBACK = 0,
|
|
+
|
|
+ // This is a set features command to be written to the sensor
|
|
+ TOUCH_FEEDBACK_DATA_TYPE_SET_FEATURES,
|
|
+
|
|
+ // This is a get features command to be written to the sensor
|
|
+ TOUCH_FEEDBACK_DATA_TYPE_GET_FEATURES,
|
|
+
|
|
+ // This is a HID output report to be written to the sensor
|
|
+ TOUCH_FEEDBACK_DATA_TYPE_OUTPUT_REPORT,
|
|
+
|
|
+ // This is calibration data to be written to system flash
|
|
+ TOUCH_FEEDBACK_DATA_TYPE_STORE_DATA,
|
|
+
|
|
+ TOUCH_FEEDBACK_DATA_TYPE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_feedback_data_types) == 4);
|
|
+
|
|
+/*
|
|
+ * This is the data structure sent from the EU kernels back to the ME FW.
|
|
+ * In addition to "feedback" data, the FW can execute a "command" described by
|
|
+ * the command type parameter. Any payload data will always be sent to the TIC
|
|
+ * first, then any command will be issued.
|
|
+ */
|
|
+struct touch_feedback_hdr {
|
|
+ // use values from TOUCH_FEEDBACK_CMD_TYPES
|
|
+ u32 feedback_cmd_type;
|
|
+
|
|
+ // The amount of data to be written to the sensor,
|
|
+ // not including the header
|
|
+ u32 payload_size_bytes;
|
|
+
|
|
+ // The ID of the raw data buffer that generated this feedback data
|
|
+ u32 buffer_id;
|
|
+
|
|
+ // Must match protocol version of the EDS
|
|
+ u32 protocol_ver;
|
|
+
|
|
+ // use values from TOUCH_FEEDBACK_DATA_TYPES. This is not relevant
|
|
+ // if PayloadSizeBytes is 0
|
|
+ u32 feedback_data_type;
|
|
+
|
|
+ // The offset from TOUCH_DATA_WINDOW_OFFSET at which to write the
|
|
+ // Payload data. Maximum offset is 0x1EFFF.
|
|
+ u32 spi_offest;
|
|
+
|
|
+ // Padding to extend header to full 64 bytes and allow for growth
|
|
+ u8 reserved[40];
|
|
+};
|
|
+static_assert(sizeof(struct touch_feedback_hdr) == 64);
|
|
+
|
|
+struct touch_feedback_buffer {
|
|
+ struct touch_feedback_hdr Header;
|
|
+
|
|
+ // used to access the feedback data as an array and keep the compilers
|
|
+ // happy. Actual size of this array is Header.PayloadSizeBytes
|
|
+ u8 feedback_data[1];
|
|
+};
|
|
+
|
|
+/*
|
|
+ * This data structure describes the header prepended to all data
|
|
+ * written to the touch IC at the bulk data write
|
|
+ * (TOUCH_DATA_WINDOW_OFFSET + TOUCH_FEEDBACK_HDR.SpiOffest) address.
|
|
+ */
|
|
+enum touch_write_data_type {
|
|
+ TOUCH_WRITE_DATA_TYPE_FW_LOAD = 0,
|
|
+ TOUCH_WRITE_DATA_TYPE_DATA_LOAD,
|
|
+ TOUCH_WRITE_DATA_TYPE_FEEDBACK,
|
|
+ TOUCH_WRITE_DATA_TYPE_SET_FEATURES,
|
|
+ TOUCH_WRITE_DATA_TYPE_GET_FEATURES,
|
|
+ TOUCH_WRITE_DATA_TYPE_OUTPUT_REPORT,
|
|
+ TOUCH_WRITE_DATA_TYPE_NO_DATA_USE_DEFAULTS,
|
|
+ TOUCH_WRITE_DATA_TYPE_MAX
|
|
+};
|
|
+static_assert(sizeof(enum touch_write_data_type) == 4);
|
|
+
|
|
+struct touch_write_hdr {
|
|
+ // Use values from TOUCH_WRITE_DATA_TYPE
|
|
+ u32 write_data_type;
|
|
+
|
|
+ // This field designates the amount of data to follow
|
|
+ u32 write_data_len;
|
|
+};
|
|
+static_assert(sizeof(struct touch_write_hdr) == 8);
|
|
+
|
|
+struct touch_write_data {
|
|
+ struct touch_write_hdr header;
|
|
+
|
|
+ // used to access the write data as an array and keep the compilers
|
|
+ // happy. Actual size of this array is Header.WriteDataLen
|
|
+ u8 write_data[1];
|
|
+};
|
|
+
|
|
+#pragma pack()
|
|
+
|
|
+#endif // _IPTS_SENSOR_REGS_H_
|
|
diff --git a/drivers/misc/ipts/state.h b/drivers/misc/ipts/state.h
|
|
new file mode 100644
|
|
index 0000000000000..ef73d28db47cc
|
|
--- /dev/null
|
|
+++ b/drivers/misc/ipts/state.h
|
|
@@ -0,0 +1,22 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef _IPTS_STATE_H_
|
|
+#define _IPTS_STATE_H_
|
|
+
|
|
+// IPTS driver states
|
|
+enum ipts_state {
|
|
+ IPTS_STA_NONE,
|
|
+ IPTS_STA_INIT,
|
|
+ IPTS_STA_RESOURCE_READY,
|
|
+ IPTS_STA_HID_STARTED,
|
|
+ IPTS_STA_RAW_DATA_STARTED,
|
|
+ IPTS_STA_STOPPING
|
|
+};
|
|
+
|
|
+#endif // _IPTS_STATE_H_
|
|
diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h
|
|
index 2ac1dc5104b7a..5daa857a49389 100644
|
|
--- a/drivers/misc/mei/hw-me-regs.h
|
|
+++ b/drivers/misc/mei/hw-me-regs.h
|
|
@@ -119,6 +119,7 @@
|
|
|
|
#define MEI_DEV_ID_SPT 0x9D3A /* Sunrise Point */
|
|
#define MEI_DEV_ID_SPT_2 0x9D3B /* Sunrise Point 2 */
|
|
+#define MEI_DEV_ID_SPT_4 0x9D3E /* Sunrise Point 4 */
|
|
#define MEI_DEV_ID_SPT_H 0xA13A /* Sunrise Point H */
|
|
#define MEI_DEV_ID_SPT_H_2 0xA13B /* Sunrise Point H 2 */
|
|
|
|
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
|
|
index b4bf12f27caf5..34f4338fa6417 100644
|
|
--- a/drivers/misc/mei/pci-me.c
|
|
+++ b/drivers/misc/mei/pci-me.c
|
|
@@ -86,6 +86,7 @@ static const struct pci_device_id mei_me_pci_tbl[] = {
|
|
|
|
{MEI_PCI_DEVICE(MEI_DEV_ID_SPT, MEI_ME_PCH8_CFG)},
|
|
{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_2, MEI_ME_PCH8_CFG)},
|
|
+ {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_4, MEI_ME_PCH8_CFG)},
|
|
{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, MEI_ME_PCH8_SPS_CFG)},
|
|
{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, MEI_ME_PCH8_SPS_CFG)},
|
|
{MEI_PCI_DEVICE(MEI_DEV_ID_LBG, MEI_ME_PCH12_CFG)},
|
|
diff --git a/include/linux/ipts-binary.h b/include/linux/ipts-binary.h
|
|
new file mode 100644
|
|
index 0000000000000..98b54d74ff888
|
|
--- /dev/null
|
|
+++ b/include/linux/ipts-binary.h
|
|
@@ -0,0 +1,140 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef IPTS_BINARY_H
|
|
+#define IPTS_BINARY_H
|
|
+
|
|
+#include <linux/ipts.h>
|
|
+#include <linux/types.h>
|
|
+
|
|
+#define IPTS_BIN_HEADER_VERSION 2
|
|
+
|
|
+#pragma pack(1)
|
|
+
|
|
+// we support 16 output buffers (1:feedback, 15:HID)
|
|
+#define MAX_NUM_OUTPUT_BUFFERS 16
|
|
+
|
|
+enum ipts_bin_res_type {
|
|
+ IPTS_BIN_KERNEL,
|
|
+ IPTS_BIN_RO_DATA,
|
|
+ IPTS_BIN_RW_DATA,
|
|
+ IPTS_BIN_SENSOR_FRAME,
|
|
+ IPTS_BIN_OUTPUT,
|
|
+ IPTS_BIN_DYNAMIC_STATE_HEAP,
|
|
+ IPTS_BIN_PATCH_LOCATION_LIST,
|
|
+ IPTS_BIN_ALLOCATION_LIST,
|
|
+ IPTS_BIN_COMMAND_BUFFER_PACKET,
|
|
+ IPTS_BIN_TAG,
|
|
+};
|
|
+
|
|
+struct ipts_bin_header {
|
|
+ char str[4];
|
|
+ u32 version;
|
|
+
|
|
+#if IPTS_BIN_HEADER_VERSION > 1
|
|
+ u32 gfxcore;
|
|
+ u32 revid;
|
|
+#endif
|
|
+};
|
|
+
|
|
+struct ipts_bin_alloc {
|
|
+ u32 handle;
|
|
+ u32 reserved;
|
|
+};
|
|
+
|
|
+struct ipts_bin_alloc_list {
|
|
+ u32 num;
|
|
+ struct ipts_bin_alloc alloc[];
|
|
+};
|
|
+
|
|
+struct ipts_bin_cmdbuf {
|
|
+ u32 size;
|
|
+ char data[];
|
|
+};
|
|
+
|
|
+struct ipts_bin_res {
|
|
+ u32 handle;
|
|
+ enum ipts_bin_res_type type;
|
|
+ u32 initialize;
|
|
+ u32 aligned_size;
|
|
+ u32 size;
|
|
+ char data[];
|
|
+};
|
|
+
|
|
+enum ipts_bin_io_buffer_type {
|
|
+ IPTS_INPUT,
|
|
+ IPTS_OUTPUT,
|
|
+ IPTS_CONFIGURATION,
|
|
+ IPTS_CALIBRATION,
|
|
+ IPTS_FEATURE,
|
|
+};
|
|
+
|
|
+struct ipts_bin_io_header {
|
|
+ char str[10];
|
|
+ u16 type;
|
|
+};
|
|
+
|
|
+struct ipts_bin_res_list {
|
|
+ u32 num;
|
|
+ struct ipts_bin_res res[];
|
|
+};
|
|
+
|
|
+struct ipts_bin_patch {
|
|
+ u32 index;
|
|
+ u32 reserved1[2];
|
|
+ u32 alloc_offset;
|
|
+ u32 patch_offset;
|
|
+ u32 reserved2;
|
|
+};
|
|
+
|
|
+struct ipts_bin_patch_list {
|
|
+ u32 num;
|
|
+ struct ipts_bin_patch patch[];
|
|
+};
|
|
+
|
|
+struct ipts_bin_guc_wq_info {
|
|
+ u32 batch_offset;
|
|
+ u32 size;
|
|
+ char data[];
|
|
+};
|
|
+
|
|
+struct ipts_bin_bufid_patch {
|
|
+ u32 imm_offset;
|
|
+ u32 mem_offset;
|
|
+};
|
|
+
|
|
+enum ipts_bin_data_file_flags {
|
|
+ IPTS_DATA_FILE_FLAG_NONE = 0,
|
|
+ IPTS_DATA_FILE_FLAG_SHARE = 1,
|
|
+ IPTS_DATA_FILE_FLAG_ALLOC_CONTIGUOUS = 2,
|
|
+};
|
|
+
|
|
+struct ipts_bin_data_file_info {
|
|
+ u32 io_buffer_type;
|
|
+ u32 flags;
|
|
+ char file_name[MAX_IOCL_FILE_NAME_LEN];
|
|
+};
|
|
+
|
|
+struct ipts_bin_fw_info {
|
|
+ char fw_name[MAX_IOCL_FILE_NAME_LEN];
|
|
+
|
|
+ // output index. -1 for no use
|
|
+ s32 vendor_output;
|
|
+
|
|
+ u32 num_of_data_files;
|
|
+ struct ipts_bin_data_file_info data_file[];
|
|
+};
|
|
+
|
|
+struct ipts_bin_fw_list {
|
|
+ u32 num_of_fws;
|
|
+ struct ipts_bin_fw_info fw_info[];
|
|
+};
|
|
+
|
|
+#pragma pack()
|
|
+
|
|
+#endif // IPTS_BINARY_H
|
|
diff --git a/include/linux/ipts-companion.h b/include/linux/ipts-companion.h
|
|
new file mode 100644
|
|
index 0000000000000..de31f5e0b186b
|
|
--- /dev/null
|
|
+++ b/include/linux/ipts-companion.h
|
|
@@ -0,0 +1,29 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ * Copyright (c) 2019 Dorian Stoll
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef IPTS_COMPANION_H
|
|
+#define IPTS_COMPANION_H
|
|
+
|
|
+#include <linux/firmware.h>
|
|
+#include <linux/ipts-binary.h>
|
|
+
|
|
+struct ipts_companion {
|
|
+ int (*firmware_request)(struct ipts_companion *companion,
|
|
+ const struct firmware **fw,
|
|
+ const char *name, struct device *device);
|
|
+
|
|
+ struct ipts_bin_fw_info **firmware_config;
|
|
+ void *data;
|
|
+ const char *name;
|
|
+};
|
|
+
|
|
+int ipts_add_companion(struct ipts_companion *companion);
|
|
+int ipts_remove_companion(struct ipts_companion *companion);
|
|
+
|
|
+#endif // IPTS_COMPANION_H
|
|
diff --git a/include/linux/ipts-gfx.h b/include/linux/ipts-gfx.h
|
|
new file mode 100644
|
|
index 0000000000000..cb9d98fe96e4b
|
|
--- /dev/null
|
|
+++ b/include/linux/ipts-gfx.h
|
|
@@ -0,0 +1,86 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef IPTS_GFX_H
|
|
+#define IPTS_GFX_H
|
|
+
|
|
+enum {
|
|
+ IPTS_INTERFACE_V1 = 1,
|
|
+};
|
|
+
|
|
+#define IPTS_BUF_FLAG_CONTIGUOUS 0x01
|
|
+
|
|
+#define IPTS_NOTIFY_STA_BACKLIGHT_OFF 0x00
|
|
+#define IPTS_NOTIFY_STA_BACKLIGHT_ON 0x01
|
|
+
|
|
+struct ipts_mapbuffer {
|
|
+ u32 size;
|
|
+ u32 flags;
|
|
+ void *gfx_addr;
|
|
+ void *cpu_addr;
|
|
+ u64 buf_handle;
|
|
+ u64 phy_addr;
|
|
+};
|
|
+
|
|
+struct ipts_wq_info {
|
|
+ u64 db_addr;
|
|
+ u64 db_phy_addr;
|
|
+ u32 db_cookie_offset;
|
|
+ u32 wq_size;
|
|
+ u64 wq_addr;
|
|
+ u64 wq_phy_addr;
|
|
+
|
|
+ // head of wq is managed by GPU
|
|
+ u64 wq_head_addr;
|
|
+ u64 wq_head_phy_addr;
|
|
+
|
|
+ // tail of wq is managed by CSME
|
|
+ u64 wq_tail_addr;
|
|
+ u64 wq_tail_phy_addr;
|
|
+};
|
|
+
|
|
+struct ipts_ops {
|
|
+ int (*get_wq_info)(uint64_t gfx_handle,
|
|
+ struct ipts_wq_info *wq_info);
|
|
+ int (*map_buffer)(uint64_t gfx_handle,
|
|
+ struct ipts_mapbuffer *mapbuffer);
|
|
+ int (*unmap_buffer)(uint64_t gfx_handle, uint64_t buf_handle);
|
|
+};
|
|
+
|
|
+struct ipts_callback {
|
|
+ void (*workload_complete)(void *data);
|
|
+ void (*notify_gfx_status)(u32 status, void *data);
|
|
+};
|
|
+
|
|
+struct ipts_connect {
|
|
+ // input: Client device for PM setup
|
|
+ struct device *client;
|
|
+
|
|
+ // input: Callback addresses
|
|
+ struct ipts_callback ipts_cb;
|
|
+
|
|
+ // input: Callback data
|
|
+ void *data;
|
|
+
|
|
+ // input: interface version
|
|
+ u32 if_version;
|
|
+
|
|
+ // output: GFX version
|
|
+ u32 gfx_version;
|
|
+
|
|
+ // output: GFX handle
|
|
+ u64 gfx_handle;
|
|
+
|
|
+ // output: GFX ops for IPTS
|
|
+ struct ipts_ops ipts_ops;
|
|
+};
|
|
+
|
|
+int ipts_connect(struct ipts_connect *ipts_connect);
|
|
+void ipts_disconnect(uint64_t gfx_handle);
|
|
+
|
|
+#endif // IPTS_GFX_H
|
|
diff --git a/include/linux/ipts.h b/include/linux/ipts.h
|
|
new file mode 100644
|
|
index 0000000000000..f229a34368516
|
|
--- /dev/null
|
|
+++ b/include/linux/ipts.h
|
|
@@ -0,0 +1,19 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
+/*
|
|
+ *
|
|
+ * Intel Precise Touch & Stylus
|
|
+ * Copyright (c) 2016 Intel Corporation
|
|
+ *
|
|
+ */
|
|
+
|
|
+#ifndef IPTS_H
|
|
+#define IPTS_H
|
|
+
|
|
+#include <linux/bits.h>
|
|
+
|
|
+#define MAX_IOCL_FILE_NAME_LEN 80
|
|
+#define MAX_IOCL_FILE_PATH_LEN 256
|
|
+
|
|
+#define IPTS_QUIRK_NONE 0
|
|
+
|
|
+#endif // IPTS_H
|
|
--
|
|
2.27.0
|
|
|