2021-09-15 13:51:59 +00:00
|
|
|
From a9919478a89a940a0e8a546c369c6d7c2559ee63 Mon Sep 17 00:00:00 2001
|
2019-07-02 22:36:37 +00:00
|
|
|
From: Maximilian Luz <luzmaximilian@gmail.com>
|
2019-10-20 22:10:47 +00:00
|
|
|
Date: Sat, 28 Sep 2019 18:00:43 +0200
|
2020-10-22 16:20:27 +00:00
|
|
|
Subject: [PATCH] platform/x86: Surface 3 battery platform operation region
|
|
|
|
support
|
2019-01-27 16:01:27 +00:00
|
|
|
|
2020-10-22 16:20:27 +00:00
|
|
|
Patchset: surface3-power
|
2019-01-27 16:01:27 +00:00
|
|
|
---
|
2019-02-18 18:10:27 +00:00
|
|
|
drivers/platform/x86/Kconfig | 7 +
|
|
|
|
drivers/platform/x86/Makefile | 1 +
|
|
|
|
drivers/platform/x86/surface3_power.c | 604 ++++++++++++++++++++++++++
|
|
|
|
3 files changed, 612 insertions(+)
|
|
|
|
create mode 100644 drivers/platform/x86/surface3_power.c
|
2019-01-27 16:01:27 +00:00
|
|
|
|
2019-02-18 18:10:27 +00:00
|
|
|
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
|
2020-10-16 17:33:14 +00:00
|
|
|
index a13bb4ddd0cf..0d20ffdb5a67 100644
|
2019-02-18 18:10:27 +00:00
|
|
|
--- a/drivers/platform/x86/Kconfig
|
|
|
|
+++ b/drivers/platform/x86/Kconfig
|
2020-10-16 17:33:14 +00:00
|
|
|
@@ -1161,6 +1161,13 @@ config SURFACE_3_BUTTON
|
2019-02-18 18:10:27 +00:00
|
|
|
---help---
|
|
|
|
This driver handles the power/home/volume buttons on the Microsoft Surface 3 tablet.
|
2019-01-27 16:01:27 +00:00
|
|
|
|
2019-02-18 18:10:27 +00:00
|
|
|
+config SURFACE_3_POWER_OPREGION
|
2019-01-27 16:01:27 +00:00
|
|
|
+ tristate "Surface 3 battery platform operation region support"
|
2019-02-18 18:10:27 +00:00
|
|
|
+ depends on ACPI && I2C
|
2019-01-27 16:01:27 +00:00
|
|
|
+ help
|
|
|
|
+ Select this option to enable support for ACPI operation
|
|
|
|
+ region of the Surface 3 battery platform driver.
|
|
|
|
+
|
2019-02-18 18:10:27 +00:00
|
|
|
config INTEL_PUNIT_IPC
|
|
|
|
tristate "Intel P-Unit IPC Driver"
|
|
|
|
---help---
|
|
|
|
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
|
2020-09-12 14:08:25 +00:00
|
|
|
index dc29af4d8e2f..2ea90039a3e4 100644
|
2019-02-18 18:10:27 +00:00
|
|
|
--- a/drivers/platform/x86/Makefile
|
|
|
|
+++ b/drivers/platform/x86/Makefile
|
2019-10-20 22:10:47 +00:00
|
|
|
@@ -81,6 +81,7 @@ obj-$(CONFIG_INTEL_PMC_IPC) += intel_pmc_ipc.o
|
2019-02-18 18:10:27 +00:00
|
|
|
obj-$(CONFIG_TOUCHSCREEN_DMI) += touchscreen_dmi.o
|
|
|
|
obj-$(CONFIG_SURFACE_PRO3_BUTTON) += surfacepro3_button.o
|
|
|
|
obj-$(CONFIG_SURFACE_3_BUTTON) += surface3_button.o
|
|
|
|
+obj-$(CONFIG_SURFACE_3_POWER_OPREGION) += surface3_power.o
|
|
|
|
obj-$(CONFIG_INTEL_PUNIT_IPC) += intel_punit_ipc.o
|
|
|
|
obj-$(CONFIG_INTEL_BXTWC_PMIC_TMU) += intel_bxtwc_tmu.o
|
|
|
|
obj-$(CONFIG_INTEL_TELEMETRY) += intel_telemetry_core.o \
|
|
|
|
diff --git a/drivers/platform/x86/surface3_power.c b/drivers/platform/x86/surface3_power.c
|
2019-01-27 16:01:27 +00:00
|
|
|
new file mode 100644
|
2020-09-12 14:08:25 +00:00
|
|
|
index 000000000000..e0af01a60302
|
2019-01-27 16:01:27 +00:00
|
|
|
--- /dev/null
|
2019-02-18 18:10:27 +00:00
|
|
|
+++ b/drivers/platform/x86/surface3_power.c
|
|
|
|
@@ -0,0 +1,604 @@
|
|
|
|
+// SPDX-License-Identifier: GPL-2.0+
|
|
|
|
+
|
2019-01-27 16:01:27 +00:00
|
|
|
+/*
|
|
|
|
+ * Supports for the power IC on the Surface 3 tablet.
|
|
|
|
+ *
|
2019-02-18 18:10:27 +00:00
|
|
|
+ * (C) Copyright 2016-2018 Red Hat, Inc
|
|
|
|
+ * (C) Copyright 2016-2018 Benjamin Tissoires <benjamin.tissoires@gmail.com>
|
2019-01-27 16:01:27 +00:00
|
|
|
+ * (C) Copyright 2016 Stephen Just <stephenjust@gmail.com>
|
|
|
|
+ *
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ * This driver has been reverse-engineered by parsing the DSDT of the Surface 3
|
|
|
|
+ * and looking at the registers of the chips.
|
|
|
|
+ *
|
|
|
|
+ * The DSDT allowed to find out that:
|
|
|
|
+ * - the driver is required for the ACPI BAT0 device to communicate to the chip
|
|
|
|
+ * through an operation region.
|
|
|
|
+ * - the various defines for the operation region functions to communicate with
|
|
|
|
+ * this driver
|
|
|
|
+ * - the DSM 3f99e367-6220-4955-8b0f-06ef2ae79412 allows to trigger ACPI
|
|
|
|
+ * events to BAT0 (the code is all available in the DSDT).
|
|
|
|
+ *
|
|
|
|
+ * Further findings regarding the 2 chips declared in the MSHW0011 are:
|
|
|
|
+ * - there are 2 chips declared:
|
|
|
|
+ * . 0x22 seems to control the ADP1 line status (and probably the charger)
|
|
|
|
+ * . 0x55 controls the battery directly
|
|
|
|
+ * - the battery chip uses a SMBus protocol (using plain SMBus allows non
|
|
|
|
+ * destructive commands):
|
|
|
|
+ * . the commands/registers used are in the range 0x00..0x7F
|
|
|
|
+ * . if bit 8 (0x80) is set in the SMBus command, the returned value is the
|
|
|
|
+ * same as when it is not set. There is a high chance this bit is the
|
|
|
|
+ * read/write
|
|
|
|
+ * . the various registers semantic as been deduced by observing the register
|
|
|
|
+ * dumps.
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+#include <asm/unaligned.h>
|
|
|
|
+#include <linux/acpi.h>
|
|
|
|
+#include <linux/freezer.h>
|
|
|
|
+#include <linux/i2c.h>
|
|
|
|
+#include <linux/kernel.h>
|
|
|
|
+#include <linux/kthread.h>
|
|
|
|
+#include <linux/slab.h>
|
|
|
|
+#include <linux/uuid.h>
|
|
|
|
+
|
|
|
|
+#define POLL_INTERVAL (2 * HZ)
|
|
|
|
+
|
|
|
|
+struct mshw0011_data {
|
|
|
|
+ struct i2c_client *adp1;
|
|
|
|
+ struct i2c_client *bat0;
|
2019-02-18 18:10:27 +00:00
|
|
|
+ unsigned short notify_mask;
|
2019-01-27 16:01:27 +00:00
|
|
|
+ struct task_struct *poll_task;
|
|
|
|
+ bool kthread_running;
|
|
|
|
+
|
|
|
|
+ bool charging;
|
|
|
|
+ bool bat_charging;
|
|
|
|
+ u8 trip_point;
|
|
|
|
+ s32 full_capacity;
|
|
|
|
+};
|
|
|
|
+
|
|
|
|
+struct mshw0011_lookup {
|
|
|
|
+ struct mshw0011_data *cdata;
|
|
|
|
+ unsigned int n;
|
|
|
|
+ unsigned int index;
|
|
|
|
+ int addr;
|
|
|
|
+};
|
|
|
|
+
|
|
|
|
+struct mshw0011_handler_data {
|
|
|
|
+ struct acpi_connection_info info;
|
|
|
|
+ struct i2c_client *client;
|
|
|
|
+};
|
|
|
|
+
|
|
|
|
+struct bix {
|
|
|
|
+ u32 revision;
|
|
|
|
+ u32 power_unit;
|
|
|
|
+ u32 design_capacity;
|
|
|
|
+ u32 last_full_charg_capacity;
|
|
|
|
+ u32 battery_technology;
|
|
|
|
+ u32 design_voltage;
|
|
|
|
+ u32 design_capacity_of_warning;
|
|
|
|
+ u32 design_capacity_of_low;
|
|
|
|
+ u32 cycle_count;
|
|
|
|
+ u32 measurement_accuracy;
|
|
|
|
+ u32 max_sampling_time;
|
|
|
|
+ u32 min_sampling_time;
|
|
|
|
+ u32 max_average_interval;
|
|
|
|
+ u32 min_average_interval;
|
|
|
|
+ u32 battery_capacity_granularity_1;
|
|
|
|
+ u32 battery_capacity_granularity_2;
|
|
|
|
+ char model[10];
|
|
|
|
+ char serial[10];
|
|
|
|
+ char type[10];
|
|
|
|
+ char OEM[10];
|
|
|
|
+} __packed;
|
|
|
|
+
|
|
|
|
+struct bst {
|
|
|
|
+ u32 battery_state;
|
|
|
|
+ s32 battery_present_rate;
|
|
|
|
+ u32 battery_remaining_capacity;
|
|
|
|
+ u32 battery_present_voltage;
|
|
|
|
+} __packed;
|
|
|
|
+
|
|
|
|
+struct gsb_command {
|
|
|
|
+ u8 arg0;
|
|
|
|
+ u8 arg1;
|
|
|
|
+ u8 arg2;
|
|
|
|
+} __packed;
|
|
|
|
+
|
|
|
|
+struct gsb_buffer {
|
|
|
|
+ u8 status;
|
|
|
|
+ u8 len;
|
|
|
|
+ u8 ret;
|
|
|
|
+ union {
|
|
|
|
+ struct gsb_command cmd;
|
|
|
|
+ struct bst bst;
|
|
|
|
+ struct bix bix;
|
|
|
|
+ } __packed;
|
|
|
|
+} __packed;
|
|
|
|
+
|
2019-02-18 18:10:27 +00:00
|
|
|
+
|
|
|
|
+#define ACPI_BATTERY_STATE_DISCHARGING BIT(0)
|
|
|
|
+#define ACPI_BATTERY_STATE_CHARGING BIT(1)
|
|
|
|
+#define ACPI_BATTERY_STATE_CRITICAL BIT(2)
|
2019-01-27 16:01:27 +00:00
|
|
|
+
|
|
|
|
+#define MSHW0011_CMD_DEST_BAT0 0x01
|
|
|
|
+#define MSHW0011_CMD_DEST_ADP1 0x03
|
|
|
|
+
|
|
|
|
+#define MSHW0011_CMD_BAT0_STA 0x01
|
|
|
|
+#define MSHW0011_CMD_BAT0_BIX 0x02
|
|
|
|
+#define MSHW0011_CMD_BAT0_BCT 0x03
|
|
|
|
+#define MSHW0011_CMD_BAT0_BTM 0x04
|
|
|
|
+#define MSHW0011_CMD_BAT0_BST 0x05
|
|
|
|
+#define MSHW0011_CMD_BAT0_BTP 0x06
|
|
|
|
+#define MSHW0011_CMD_ADP1_PSR 0x07
|
|
|
|
+#define MSHW0011_CMD_BAT0_PSOC 0x09
|
|
|
|
+#define MSHW0011_CMD_BAT0_PMAX 0x0a
|
|
|
|
+#define MSHW0011_CMD_BAT0_PSRC 0x0b
|
|
|
|
+#define MSHW0011_CMD_BAT0_CHGI 0x0c
|
|
|
|
+#define MSHW0011_CMD_BAT0_ARTG 0x0d
|
|
|
|
+
|
|
|
|
+#define MSHW0011_NOTIFY_GET_VERSION 0x00
|
|
|
|
+#define MSHW0011_NOTIFY_ADP1 0x01
|
|
|
|
+#define MSHW0011_NOTIFY_BAT0_BST 0x02
|
|
|
|
+#define MSHW0011_NOTIFY_BAT0_BIX 0x05
|
|
|
|
+
|
|
|
|
+#define MSHW0011_ADP1_REG_PSR 0x04
|
|
|
|
+
|
|
|
|
+#define MSHW0011_BAT0_REG_CAPACITY 0x0c
|
|
|
|
+#define MSHW0011_BAT0_REG_FULL_CHG_CAPACITY 0x0e
|
|
|
|
+#define MSHW0011_BAT0_REG_DESIGN_CAPACITY 0x40
|
|
|
|
+#define MSHW0011_BAT0_REG_VOLTAGE 0x08
|
|
|
|
+#define MSHW0011_BAT0_REG_RATE 0x14
|
|
|
|
+#define MSHW0011_BAT0_REG_OEM 0x45
|
|
|
|
+#define MSHW0011_BAT0_REG_TYPE 0x4e
|
|
|
|
+#define MSHW0011_BAT0_REG_SERIAL_NO 0x56
|
|
|
|
+#define MSHW0011_BAT0_REG_CYCLE_CNT 0x6e
|
|
|
|
+
|
|
|
|
+#define MSHW0011_EV_2_5 0x1ff
|
|
|
|
+
|
|
|
|
+static int
|
|
|
|
+mshw0011_notify(struct mshw0011_data *cdata, u8 arg1, u8 arg2,
|
|
|
|
+ unsigned int *ret_value)
|
|
|
|
+{
|
2019-02-18 18:10:27 +00:00
|
|
|
+ static const guid_t mshw0011_guid =
|
2019-01-27 16:01:27 +00:00
|
|
|
+ GUID_INIT(0x3F99E367, 0x6220, 0x4955,
|
|
|
|
+ 0x8B, 0x0F, 0x06, 0xEF, 0x2A, 0xE7, 0x94, 0x12);
|
|
|
|
+ union acpi_object *obj;
|
|
|
|
+ struct acpi_device *adev;
|
|
|
|
+ acpi_handle handle;
|
|
|
|
+ unsigned int i;
|
|
|
|
+
|
|
|
|
+ handle = ACPI_HANDLE(&cdata->adp1->dev);
|
|
|
|
+ if (!handle || acpi_bus_get_device(handle, &adev))
|
|
|
|
+ return -ENODEV;
|
|
|
|
+
|
|
|
|
+ obj = acpi_evaluate_dsm_typed(handle, &mshw0011_guid, arg1, arg2, NULL,
|
|
|
|
+ ACPI_TYPE_BUFFER);
|
|
|
|
+ if (!obj) {
|
|
|
|
+ dev_err(&cdata->adp1->dev, "device _DSM execution failed\n");
|
|
|
|
+ return -ENODEV;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ *ret_value = 0;
|
|
|
|
+ for (i = 0; i < obj->buffer.length; i++)
|
|
|
|
+ *ret_value |= obj->buffer.pointer[i] << (i * 8);
|
|
|
|
+
|
|
|
|
+ ACPI_FREE(obj);
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static const struct bix default_bix = {
|
|
|
|
+ .revision = 0x00,
|
|
|
|
+ .power_unit = 0x01,
|
|
|
|
+ .design_capacity = 0x1dca,
|
|
|
|
+ .last_full_charg_capacity = 0x1dca,
|
|
|
|
+ .battery_technology = 0x01,
|
|
|
|
+ .design_voltage = 0x10df,
|
|
|
|
+ .design_capacity_of_warning = 0x8f,
|
|
|
|
+ .design_capacity_of_low = 0x47,
|
|
|
|
+ .cycle_count = 0xffffffff,
|
|
|
|
+ .measurement_accuracy = 0x00015f90,
|
|
|
|
+ .max_sampling_time = 0x03e8,
|
|
|
|
+ .min_sampling_time = 0x03e8,
|
|
|
|
+ .max_average_interval = 0x03e8,
|
|
|
|
+ .min_average_interval = 0x03e8,
|
|
|
|
+ .battery_capacity_granularity_1 = 0x45,
|
|
|
|
+ .battery_capacity_granularity_2 = 0x11,
|
|
|
|
+ .model = "P11G8M",
|
|
|
|
+ .serial = "",
|
|
|
|
+ .type = "LION",
|
|
|
|
+ .OEM = "",
|
|
|
|
+};
|
|
|
|
+
|
|
|
|
+static int mshw0011_bix(struct mshw0011_data *cdata, struct bix *bix)
|
|
|
|
+{
|
|
|
|
+ struct i2c_client *client = cdata->bat0;
|
|
|
|
+ char buf[10];
|
|
|
|
+ int ret;
|
|
|
|
+
|
|
|
|
+ *bix = default_bix;
|
|
|
|
+
|
|
|
|
+ /* get design capacity */
|
|
|
|
+ ret = i2c_smbus_read_word_data(client,
|
|
|
|
+ MSHW0011_BAT0_REG_DESIGN_CAPACITY);
|
|
|
|
+ if (ret < 0) {
|
|
|
|
+ dev_err(&client->dev, "Error reading design capacity: %d\n",
|
|
|
|
+ ret);
|
|
|
|
+ return ret;
|
|
|
|
+ }
|
2019-02-18 18:10:27 +00:00
|
|
|
+ bix->design_capacity = ret;
|
2019-01-27 16:01:27 +00:00
|
|
|
+
|
|
|
|
+ /* get last full charge capacity */
|
|
|
|
+ ret = i2c_smbus_read_word_data(client,
|
|
|
|
+ MSHW0011_BAT0_REG_FULL_CHG_CAPACITY);
|
|
|
|
+ if (ret < 0) {
|
|
|
|
+ dev_err(&client->dev,
|
|
|
|
+ "Error reading last full charge capacity: %d\n", ret);
|
|
|
|
+ return ret;
|
|
|
|
+ }
|
2019-02-18 18:10:27 +00:00
|
|
|
+ bix->last_full_charg_capacity = ret;
|
2019-01-27 16:01:27 +00:00
|
|
|
+
|
|
|
|
+ /* get serial number */
|
2019-02-18 18:10:27 +00:00
|
|
|
+ ret = i2c_smbus_read_i2c_block_data(client, MSHW0011_BAT0_REG_SERIAL_NO,
|
|
|
|
+ 10, buf);
|
|
|
|
+ if (ret != 10) {
|
2019-01-27 16:01:27 +00:00
|
|
|
+ dev_err(&client->dev, "Error reading serial no: %d\n", ret);
|
|
|
|
+ return ret;
|
|
|
|
+ }
|
2019-02-18 18:10:27 +00:00
|
|
|
+ snprintf(bix->serial, ARRAY_SIZE(bix->serial),
|
|
|
|
+ "%*pE%*pE", 3, buf + 7, 6, buf);
|
2019-01-27 16:01:27 +00:00
|
|
|
+
|
|
|
|
+ /* get cycle count */
|
|
|
|
+ ret = i2c_smbus_read_word_data(client, MSHW0011_BAT0_REG_CYCLE_CNT);
|
|
|
|
+ if (ret < 0) {
|
|
|
|
+ dev_err(&client->dev, "Error reading cycle count: %d\n", ret);
|
|
|
|
+ return ret;
|
|
|
|
+ }
|
2019-02-18 18:10:27 +00:00
|
|
|
+ bix->cycle_count = ret;
|
2019-01-27 16:01:27 +00:00
|
|
|
+
|
|
|
|
+ /* get OEM name */
|
2019-02-18 18:10:27 +00:00
|
|
|
+ ret = i2c_smbus_read_i2c_block_data(client, MSHW0011_BAT0_REG_OEM,
|
|
|
|
+ 4, buf);
|
|
|
|
+ if (ret != 4) {
|
2019-01-27 16:01:27 +00:00
|
|
|
+ dev_err(&client->dev, "Error reading cycle count: %d\n", ret);
|
|
|
|
+ return ret;
|
|
|
|
+ }
|
2019-02-18 18:10:27 +00:00
|
|
|
+ snprintf(bix->OEM, ARRAY_SIZE(bix->OEM), "%*pE", 3, buf);
|
2019-01-27 16:01:27 +00:00
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int mshw0011_bst(struct mshw0011_data *cdata, struct bst *bst)
|
|
|
|
+{
|
|
|
|
+ struct i2c_client *client = cdata->bat0;
|
|
|
|
+ int rate, capacity, voltage, state;
|
|
|
|
+ s16 tmp;
|
|
|
|
+
|
|
|
|
+ rate = i2c_smbus_read_word_data(client, MSHW0011_BAT0_REG_RATE);
|
|
|
|
+ if (rate < 0)
|
|
|
|
+ return rate;
|
|
|
|
+
|
|
|
|
+ capacity = i2c_smbus_read_word_data(client, MSHW0011_BAT0_REG_CAPACITY);
|
|
|
|
+ if (capacity < 0)
|
|
|
|
+ return capacity;
|
|
|
|
+
|
|
|
|
+ voltage = i2c_smbus_read_word_data(client, MSHW0011_BAT0_REG_VOLTAGE);
|
|
|
|
+ if (voltage < 0)
|
|
|
|
+ return voltage;
|
|
|
|
+
|
2019-02-18 18:10:27 +00:00
|
|
|
+ tmp = rate;
|
2019-01-27 16:01:27 +00:00
|
|
|
+ bst->battery_present_rate = abs((s32)tmp);
|
|
|
|
+
|
|
|
|
+ state = 0;
|
|
|
|
+ if ((s32) tmp > 0)
|
|
|
|
+ state |= ACPI_BATTERY_STATE_CHARGING;
|
|
|
|
+ else if ((s32) tmp < 0)
|
|
|
|
+ state |= ACPI_BATTERY_STATE_DISCHARGING;
|
|
|
|
+ bst->battery_state = state;
|
|
|
|
+
|
2019-02-18 18:10:27 +00:00
|
|
|
+ bst->battery_remaining_capacity = capacity;
|
|
|
|
+ bst->battery_present_voltage = voltage;
|
2019-01-27 16:01:27 +00:00
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int mshw0011_adp_psr(struct mshw0011_data *cdata)
|
|
|
|
+{
|
|
|
|
+ struct i2c_client *client = cdata->adp1;
|
|
|
|
+ int ret;
|
|
|
|
+
|
|
|
|
+ ret = i2c_smbus_read_byte_data(client, MSHW0011_ADP1_REG_PSR);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ return ret;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int mshw0011_isr(struct mshw0011_data *cdata)
|
|
|
|
+{
|
|
|
|
+ struct bst bst;
|
|
|
|
+ struct bix bix;
|
|
|
|
+ int ret;
|
|
|
|
+ bool status, bat_status;
|
|
|
|
+
|
|
|
|
+ ret = mshw0011_adp_psr(cdata);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ status = ret;
|
|
|
|
+
|
|
|
|
+ if (status != cdata->charging)
|
2019-02-18 18:10:27 +00:00
|
|
|
+ mshw0011_notify(cdata, cdata->notify_mask,
|
2019-01-27 16:01:27 +00:00
|
|
|
+ MSHW0011_NOTIFY_ADP1, &ret);
|
|
|
|
+
|
|
|
|
+ cdata->charging = status;
|
|
|
|
+
|
|
|
|
+ ret = mshw0011_bst(cdata, &bst);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ bat_status = bst.battery_state;
|
|
|
|
+
|
|
|
|
+ if (bat_status != cdata->bat_charging)
|
2019-02-18 18:10:27 +00:00
|
|
|
+ mshw0011_notify(cdata, cdata->notify_mask,
|
2019-01-27 16:01:27 +00:00
|
|
|
+ MSHW0011_NOTIFY_BAT0_BST, &ret);
|
|
|
|
+
|
|
|
|
+ cdata->bat_charging = bat_status;
|
|
|
|
+
|
|
|
|
+ ret = mshw0011_bix(cdata, &bix);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ return ret;
|
|
|
|
+ if (bix.last_full_charg_capacity != cdata->full_capacity)
|
2019-02-18 18:10:27 +00:00
|
|
|
+ mshw0011_notify(cdata, cdata->notify_mask,
|
2019-01-27 16:01:27 +00:00
|
|
|
+ MSHW0011_NOTIFY_BAT0_BIX, &ret);
|
|
|
|
+
|
|
|
|
+ cdata->full_capacity = bix.last_full_charg_capacity;
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int mshw0011_poll_task(void *data)
|
|
|
|
+{
|
|
|
|
+ struct mshw0011_data *cdata = data;
|
|
|
|
+ int ret = 0;
|
|
|
|
+
|
|
|
|
+ cdata->kthread_running = true;
|
|
|
|
+
|
|
|
|
+ set_freezable();
|
|
|
|
+
|
|
|
|
+ while (!kthread_should_stop()) {
|
|
|
|
+ schedule_timeout_interruptible(POLL_INTERVAL);
|
|
|
|
+ try_to_freeze();
|
|
|
|
+ ret = mshw0011_isr(data);
|
|
|
|
+ if (ret)
|
|
|
|
+ break;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ cdata->kthread_running = false;
|
|
|
|
+ return ret;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static acpi_status
|
|
|
|
+mshw0011_space_handler(u32 function, acpi_physical_address command,
|
|
|
|
+ u32 bits, u64 *value64,
|
|
|
|
+ void *handler_context, void *region_context)
|
|
|
|
+{
|
|
|
|
+ struct gsb_buffer *gsb = (struct gsb_buffer *)value64;
|
|
|
|
+ struct mshw0011_handler_data *data = handler_context;
|
|
|
|
+ struct acpi_connection_info *info = &data->info;
|
|
|
|
+ struct acpi_resource_i2c_serialbus *sb;
|
|
|
|
+ struct i2c_client *client = data->client;
|
|
|
|
+ struct mshw0011_data *cdata = i2c_get_clientdata(client);
|
|
|
|
+ struct acpi_resource *ares;
|
|
|
|
+ u32 accessor_type = function >> 16;
|
|
|
|
+ acpi_status ret;
|
|
|
|
+ int status = 1;
|
|
|
|
+
|
|
|
|
+ ret = acpi_buffer_to_resource(info->connection, info->length, &ares);
|
|
|
|
+ if (ACPI_FAILURE(ret))
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ if (!value64 || ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS) {
|
|
|
|
+ ret = AE_BAD_PARAMETER;
|
|
|
|
+ goto err;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ sb = &ares->data.i2c_serial_bus;
|
|
|
|
+ if (sb->type != ACPI_RESOURCE_SERIAL_TYPE_I2C) {
|
|
|
|
+ ret = AE_BAD_PARAMETER;
|
|
|
|
+ goto err;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (accessor_type != ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS) {
|
|
|
|
+ ret = AE_BAD_PARAMETER;
|
|
|
|
+ goto err;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (gsb->cmd.arg0 == MSHW0011_CMD_DEST_ADP1 &&
|
|
|
|
+ gsb->cmd.arg1 == MSHW0011_CMD_ADP1_PSR) {
|
|
|
|
+ ret = mshw0011_adp_psr(cdata);
|
|
|
|
+ if (ret >= 0) {
|
|
|
|
+ status = ret;
|
|
|
|
+ ret = 0;
|
|
|
|
+ }
|
|
|
|
+ goto out;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (gsb->cmd.arg0 != MSHW0011_CMD_DEST_BAT0) {
|
|
|
|
+ ret = AE_BAD_PARAMETER;
|
|
|
|
+ goto err;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ switch (gsb->cmd.arg1) {
|
|
|
|
+ case MSHW0011_CMD_BAT0_STA:
|
|
|
|
+ break;
|
|
|
|
+ case MSHW0011_CMD_BAT0_BIX:
|
|
|
|
+ ret = mshw0011_bix(cdata, &gsb->bix);
|
|
|
|
+ break;
|
|
|
|
+ case MSHW0011_CMD_BAT0_BTP:
|
|
|
|
+ cdata->trip_point = gsb->cmd.arg2;
|
|
|
|
+ break;
|
|
|
|
+ case MSHW0011_CMD_BAT0_BST:
|
|
|
|
+ ret = mshw0011_bst(cdata, &gsb->bst);
|
|
|
|
+ break;
|
|
|
|
+ default:
|
|
|
|
+ pr_info("command(0x%02x) is not supported.\n", gsb->cmd.arg1);
|
|
|
|
+ ret = AE_BAD_PARAMETER;
|
|
|
|
+ goto err;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ out:
|
|
|
|
+ gsb->ret = status;
|
|
|
|
+ gsb->status = 0;
|
|
|
|
+
|
|
|
|
+ err:
|
|
|
|
+ ACPI_FREE(ares);
|
|
|
|
+ return ret;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int mshw0011_install_space_handler(struct i2c_client *client)
|
|
|
|
+{
|
|
|
|
+ acpi_handle handle;
|
|
|
|
+ struct mshw0011_handler_data *data;
|
|
|
|
+ acpi_status status;
|
|
|
|
+
|
|
|
|
+ handle = ACPI_HANDLE(&client->dev);
|
|
|
|
+
|
|
|
|
+ if (!handle)
|
|
|
|
+ return -ENODEV;
|
|
|
|
+
|
|
|
|
+ data = kzalloc(sizeof(struct mshw0011_handler_data),
|
|
|
|
+ GFP_KERNEL);
|
|
|
|
+ if (!data)
|
|
|
|
+ return -ENOMEM;
|
|
|
|
+
|
|
|
|
+ data->client = client;
|
|
|
|
+ status = acpi_bus_attach_private_data(handle, (void *)data);
|
|
|
|
+ if (ACPI_FAILURE(status)) {
|
|
|
|
+ kfree(data);
|
|
|
|
+ return -ENOMEM;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ status = acpi_install_address_space_handler(handle,
|
|
|
|
+ ACPI_ADR_SPACE_GSBUS,
|
|
|
|
+ &mshw0011_space_handler,
|
|
|
|
+ NULL,
|
|
|
|
+ data);
|
|
|
|
+ if (ACPI_FAILURE(status)) {
|
|
|
|
+ dev_err(&client->dev, "Error installing i2c space handler\n");
|
|
|
|
+ acpi_bus_detach_private_data(handle);
|
|
|
|
+ kfree(data);
|
|
|
|
+ return -ENOMEM;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ acpi_walk_dep_device_list(handle);
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static void mshw0011_remove_space_handler(struct i2c_client *client)
|
|
|
|
+{
|
|
|
|
+ acpi_handle handle = ACPI_HANDLE(&client->dev);
|
|
|
|
+ struct mshw0011_handler_data *data;
|
|
|
|
+ acpi_status status;
|
|
|
|
+
|
|
|
|
+ if (!handle)
|
|
|
|
+ return;
|
|
|
|
+
|
|
|
|
+ acpi_remove_address_space_handler(handle,
|
|
|
|
+ ACPI_ADR_SPACE_GSBUS,
|
|
|
|
+ &mshw0011_space_handler);
|
|
|
|
+
|
|
|
|
+ status = acpi_bus_get_private_data(handle, (void **)&data);
|
|
|
|
+ if (ACPI_SUCCESS(status))
|
|
|
|
+ kfree(data);
|
|
|
|
+
|
|
|
|
+ acpi_bus_detach_private_data(handle);
|
|
|
|
+}
|
|
|
|
+
|
2019-02-18 18:10:27 +00:00
|
|
|
+static int mshw0011_probe(struct i2c_client *client)
|
2019-01-27 16:01:27 +00:00
|
|
|
+{
|
2019-02-18 18:10:27 +00:00
|
|
|
+ struct i2c_board_info board_info;
|
2019-01-27 16:01:27 +00:00
|
|
|
+ struct device *dev = &client->dev;
|
|
|
|
+ struct i2c_client *bat0;
|
2019-02-18 18:10:27 +00:00
|
|
|
+
|
2019-01-27 16:01:27 +00:00
|
|
|
+ struct mshw0011_data *data;
|
2019-02-18 18:10:27 +00:00
|
|
|
+ int error, mask;
|
2019-01-27 16:01:27 +00:00
|
|
|
+
|
|
|
|
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
|
|
|
|
+ if (!data)
|
|
|
|
+ return -ENOMEM;
|
|
|
|
+
|
|
|
|
+ data->adp1 = client;
|
|
|
|
+ i2c_set_clientdata(client, data);
|
|
|
|
+
|
2019-02-18 18:10:27 +00:00
|
|
|
+ memset(&board_info, 0, sizeof(board_info));
|
|
|
|
+ strlcpy(board_info.type, "MSHW0011-bat0", I2C_NAME_SIZE);
|
2019-01-27 16:01:27 +00:00
|
|
|
+
|
2019-02-18 18:10:27 +00:00
|
|
|
+ bat0 = i2c_acpi_new_device(dev, 1, &board_info);
|
2019-01-27 16:01:27 +00:00
|
|
|
+ if (!bat0)
|
|
|
|
+ return -ENOMEM;
|
|
|
|
+
|
|
|
|
+ data->bat0 = bat0;
|
|
|
|
+ i2c_set_clientdata(bat0, data);
|
|
|
|
+
|
2019-02-18 18:10:27 +00:00
|
|
|
+ error = mshw0011_notify(data, 1, MSHW0011_NOTIFY_GET_VERSION, &mask);
|
2019-01-27 16:01:27 +00:00
|
|
|
+ if (error)
|
|
|
|
+ goto out_err;
|
|
|
|
+
|
2019-02-18 18:10:27 +00:00
|
|
|
+ data->notify_mask = mask == MSHW0011_EV_2_5;
|
2019-01-27 16:01:27 +00:00
|
|
|
+
|
|
|
|
+ data->poll_task = kthread_run(mshw0011_poll_task, data, "mshw0011_adp");
|
|
|
|
+ if (IS_ERR(data->poll_task)) {
|
|
|
|
+ error = PTR_ERR(data->poll_task);
|
|
|
|
+ dev_err(&client->dev, "Unable to run kthread err %d\n", error);
|
|
|
|
+ goto out_err;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ error = mshw0011_install_space_handler(client);
|
|
|
|
+ if (error)
|
|
|
|
+ goto out_err;
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+
|
|
|
|
+out_err:
|
|
|
|
+ if (data->kthread_running)
|
|
|
|
+ kthread_stop(data->poll_task);
|
|
|
|
+ i2c_unregister_device(data->bat0);
|
|
|
|
+ return error;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int mshw0011_remove(struct i2c_client *client)
|
|
|
|
+{
|
|
|
|
+ struct mshw0011_data *cdata = i2c_get_clientdata(client);
|
|
|
|
+
|
|
|
|
+ mshw0011_remove_space_handler(client);
|
|
|
|
+
|
|
|
|
+ if (cdata->kthread_running)
|
|
|
|
+ kthread_stop(cdata->poll_task);
|
|
|
|
+
|
|
|
|
+ i2c_unregister_device(cdata->bat0);
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static const struct acpi_device_id mshw0011_acpi_match[] = {
|
|
|
|
+ { "MSHW0011", 0 },
|
|
|
|
+ { }
|
|
|
|
+};
|
|
|
|
+MODULE_DEVICE_TABLE(acpi, mshw0011_acpi_match);
|
|
|
|
+
|
|
|
|
+static struct i2c_driver mshw0011_driver = {
|
2019-02-18 18:10:27 +00:00
|
|
|
+ .probe_new = mshw0011_probe,
|
2019-01-27 16:01:27 +00:00
|
|
|
+ .remove = mshw0011_remove,
|
|
|
|
+ .driver = {
|
|
|
|
+ .name = "mshw0011",
|
|
|
|
+ .acpi_match_table = ACPI_PTR(mshw0011_acpi_match),
|
|
|
|
+ },
|
|
|
|
+};
|
|
|
|
+module_i2c_driver(mshw0011_driver);
|
|
|
|
+
|
|
|
|
+MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
|
|
|
|
+MODULE_DESCRIPTION("mshw0011 driver");
|
|
|
|
+MODULE_LICENSE("GPL v2");
|
|
|
|
--
|
2021-09-15 13:51:59 +00:00
|
|
|
2.33.0
|
2019-01-27 16:01:27 +00:00
|
|
|
|