1293 lines
34 KiB
C
1293 lines
34 KiB
C
/*
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* Copyright (c) 2016 MediaTek Inc.
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* Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
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* Rick Chang <rick.chang@mediatek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/clk.h>
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#include <linux/err.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/of_platform.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include <media/v4l2-event.h>
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#include <media/v4l2-mem2mem.h>
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#include <media/v4l2-ioctl.h>
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#include <media/videobuf2-core.h>
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#include <media/videobuf2-dma-contig.h>
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#include <soc/mediatek/smi.h>
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#include "mtk_jpeg_hw.h"
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#include "mtk_jpeg_core.h"
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#include "mtk_jpeg_parse.h"
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static struct mtk_jpeg_fmt mtk_jpeg_formats[] = {
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{
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.fourcc = V4L2_PIX_FMT_JPEG,
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.colplanes = 1,
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.flags = MTK_JPEG_FMT_FLAG_DEC_OUTPUT,
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},
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{
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.fourcc = V4L2_PIX_FMT_YUV420M,
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.h_sample = {4, 2, 2},
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.v_sample = {4, 2, 2},
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.colplanes = 3,
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.h_align = 5,
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.v_align = 4,
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.flags = MTK_JPEG_FMT_FLAG_DEC_CAPTURE,
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},
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{
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.fourcc = V4L2_PIX_FMT_YUV422M,
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.h_sample = {4, 2, 2},
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.v_sample = {4, 4, 4},
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.colplanes = 3,
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.h_align = 5,
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.v_align = 3,
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.flags = MTK_JPEG_FMT_FLAG_DEC_CAPTURE,
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},
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};
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#define MTK_JPEG_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_formats)
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enum {
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MTK_JPEG_BUF_FLAGS_INIT = 0,
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MTK_JPEG_BUF_FLAGS_LAST_FRAME = 1,
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};
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struct mtk_jpeg_src_buf {
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struct vb2_v4l2_buffer b;
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struct list_head list;
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int flags;
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struct mtk_jpeg_dec_param dec_param;
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};
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static int debug;
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module_param(debug, int, 0644);
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static inline struct mtk_jpeg_ctx *mtk_jpeg_fh_to_ctx(struct v4l2_fh *fh)
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{
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return container_of(fh, struct mtk_jpeg_ctx, fh);
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}
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static inline struct mtk_jpeg_src_buf *mtk_jpeg_vb2_to_srcbuf(
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struct vb2_buffer *vb)
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{
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return container_of(to_vb2_v4l2_buffer(vb), struct mtk_jpeg_src_buf, b);
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}
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static int mtk_jpeg_querycap(struct file *file, void *priv,
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struct v4l2_capability *cap)
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{
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struct mtk_jpeg_dev *jpeg = video_drvdata(file);
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strlcpy(cap->driver, MTK_JPEG_NAME " decoder", sizeof(cap->driver));
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strlcpy(cap->card, MTK_JPEG_NAME " decoder", sizeof(cap->card));
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snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
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dev_name(jpeg->dev));
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return 0;
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}
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static int mtk_jpeg_enum_fmt(struct mtk_jpeg_fmt *mtk_jpeg_formats, int n,
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struct v4l2_fmtdesc *f, u32 type)
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{
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int i, num = 0;
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for (i = 0; i < n; ++i) {
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if (mtk_jpeg_formats[i].flags & type) {
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if (num == f->index)
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break;
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++num;
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}
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}
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if (i >= n)
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return -EINVAL;
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f->pixelformat = mtk_jpeg_formats[i].fourcc;
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return 0;
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}
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static int mtk_jpeg_enum_fmt_vid_cap(struct file *file, void *priv,
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struct v4l2_fmtdesc *f)
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{
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return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
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MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
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}
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static int mtk_jpeg_enum_fmt_vid_out(struct file *file, void *priv,
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struct v4l2_fmtdesc *f)
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{
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return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
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MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
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}
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static struct mtk_jpeg_q_data *mtk_jpeg_get_q_data(struct mtk_jpeg_ctx *ctx,
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enum v4l2_buf_type type)
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{
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if (V4L2_TYPE_IS_OUTPUT(type))
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return &ctx->out_q;
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return &ctx->cap_q;
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}
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static struct mtk_jpeg_fmt *mtk_jpeg_find_format(struct mtk_jpeg_ctx *ctx,
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u32 pixelformat,
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unsigned int fmt_type)
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{
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unsigned int k, fmt_flag;
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fmt_flag = (fmt_type == MTK_JPEG_FMT_TYPE_OUTPUT) ?
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MTK_JPEG_FMT_FLAG_DEC_OUTPUT :
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MTK_JPEG_FMT_FLAG_DEC_CAPTURE;
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for (k = 0; k < MTK_JPEG_NUM_FORMATS; k++) {
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struct mtk_jpeg_fmt *fmt = &mtk_jpeg_formats[k];
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if (fmt->fourcc == pixelformat && fmt->flags & fmt_flag)
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return fmt;
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}
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return NULL;
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}
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static void mtk_jpeg_bound_align_image(u32 *w, unsigned int wmin,
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unsigned int wmax, unsigned int walign,
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u32 *h, unsigned int hmin,
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unsigned int hmax, unsigned int halign)
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{
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int width, height, w_step, h_step;
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width = *w;
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height = *h;
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w_step = 1 << walign;
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h_step = 1 << halign;
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v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0);
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if (*w < width && (*w + w_step) <= wmax)
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*w += w_step;
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if (*h < height && (*h + h_step) <= hmax)
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*h += h_step;
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}
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static void mtk_jpeg_adjust_fmt_mplane(struct mtk_jpeg_ctx *ctx,
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struct v4l2_format *f)
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{
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struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
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struct mtk_jpeg_q_data *q_data;
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int i;
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q_data = mtk_jpeg_get_q_data(ctx, f->type);
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pix_mp->width = q_data->w;
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pix_mp->height = q_data->h;
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pix_mp->pixelformat = q_data->fmt->fourcc;
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pix_mp->num_planes = q_data->fmt->colplanes;
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for (i = 0; i < pix_mp->num_planes; i++) {
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pix_mp->plane_fmt[i].bytesperline = q_data->bytesperline[i];
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pix_mp->plane_fmt[i].sizeimage = q_data->sizeimage[i];
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}
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}
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static int mtk_jpeg_try_fmt_mplane(struct v4l2_format *f,
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struct mtk_jpeg_fmt *fmt,
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struct mtk_jpeg_ctx *ctx, int q_type)
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{
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struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
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struct mtk_jpeg_dev *jpeg = ctx->jpeg;
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int i;
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memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
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pix_mp->field = V4L2_FIELD_NONE;
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if (ctx->state != MTK_JPEG_INIT) {
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mtk_jpeg_adjust_fmt_mplane(ctx, f);
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goto end;
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}
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pix_mp->num_planes = fmt->colplanes;
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pix_mp->pixelformat = fmt->fourcc;
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if (q_type == MTK_JPEG_FMT_TYPE_OUTPUT) {
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struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[0];
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mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
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MTK_JPEG_MAX_WIDTH, 0,
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&pix_mp->height, MTK_JPEG_MIN_HEIGHT,
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MTK_JPEG_MAX_HEIGHT, 0);
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memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
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pfmt->bytesperline = 0;
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/* Source size must be aligned to 128 */
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pfmt->sizeimage = mtk_jpeg_align(pfmt->sizeimage, 128);
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if (pfmt->sizeimage == 0)
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pfmt->sizeimage = MTK_JPEG_DEFAULT_SIZEIMAGE;
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goto end;
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}
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/* type is MTK_JPEG_FMT_TYPE_CAPTURE */
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mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
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MTK_JPEG_MAX_WIDTH, fmt->h_align,
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&pix_mp->height, MTK_JPEG_MIN_HEIGHT,
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MTK_JPEG_MAX_HEIGHT, fmt->v_align);
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for (i = 0; i < fmt->colplanes; i++) {
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struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i];
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u32 stride = pix_mp->width * fmt->h_sample[i] / 4;
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u32 h = pix_mp->height * fmt->v_sample[i] / 4;
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memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
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pfmt->bytesperline = stride;
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pfmt->sizeimage = stride * h;
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}
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end:
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v4l2_dbg(2, debug, &jpeg->v4l2_dev, "wxh:%ux%u\n",
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pix_mp->width, pix_mp->height);
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for (i = 0; i < pix_mp->num_planes; i++) {
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v4l2_dbg(2, debug, &jpeg->v4l2_dev,
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"plane[%d] bpl=%u, size=%u\n",
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i,
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pix_mp->plane_fmt[i].bytesperline,
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pix_mp->plane_fmt[i].sizeimage);
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}
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return 0;
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}
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static int mtk_jpeg_g_fmt_vid_mplane(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct vb2_queue *vq;
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struct mtk_jpeg_q_data *q_data = NULL;
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struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
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struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
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struct mtk_jpeg_dev *jpeg = ctx->jpeg;
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int i;
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vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
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if (!vq)
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return -EINVAL;
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q_data = mtk_jpeg_get_q_data(ctx, f->type);
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memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
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pix_mp->width = q_data->w;
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pix_mp->height = q_data->h;
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pix_mp->field = V4L2_FIELD_NONE;
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pix_mp->pixelformat = q_data->fmt->fourcc;
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pix_mp->num_planes = q_data->fmt->colplanes;
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pix_mp->colorspace = ctx->colorspace;
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pix_mp->ycbcr_enc = ctx->ycbcr_enc;
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pix_mp->xfer_func = ctx->xfer_func;
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pix_mp->quantization = ctx->quantization;
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v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) g_fmt:%c%c%c%c wxh:%ux%u\n",
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f->type,
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(pix_mp->pixelformat & 0xff),
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(pix_mp->pixelformat >> 8 & 0xff),
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(pix_mp->pixelformat >> 16 & 0xff),
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(pix_mp->pixelformat >> 24 & 0xff),
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pix_mp->width, pix_mp->height);
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for (i = 0; i < pix_mp->num_planes; i++) {
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struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i];
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pfmt->bytesperline = q_data->bytesperline[i];
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pfmt->sizeimage = q_data->sizeimage[i];
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memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
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v4l2_dbg(1, debug, &jpeg->v4l2_dev,
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"plane[%d] bpl=%u, size=%u\n",
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i,
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pfmt->bytesperline,
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pfmt->sizeimage);
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}
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return 0;
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}
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static int mtk_jpeg_try_fmt_vid_cap_mplane(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
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struct mtk_jpeg_fmt *fmt;
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fmt = mtk_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat,
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MTK_JPEG_FMT_TYPE_CAPTURE);
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if (!fmt)
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fmt = ctx->cap_q.fmt;
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v4l2_dbg(2, debug, &ctx->jpeg->v4l2_dev, "(%d) try_fmt:%c%c%c%c\n",
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f->type,
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(fmt->fourcc & 0xff),
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(fmt->fourcc >> 8 & 0xff),
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(fmt->fourcc >> 16 & 0xff),
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(fmt->fourcc >> 24 & 0xff));
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return mtk_jpeg_try_fmt_mplane(f, fmt, ctx, MTK_JPEG_FMT_TYPE_CAPTURE);
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}
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static int mtk_jpeg_try_fmt_vid_out_mplane(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
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struct mtk_jpeg_fmt *fmt;
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fmt = mtk_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat,
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MTK_JPEG_FMT_TYPE_OUTPUT);
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if (!fmt)
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fmt = ctx->out_q.fmt;
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v4l2_dbg(2, debug, &ctx->jpeg->v4l2_dev, "(%d) try_fmt:%c%c%c%c\n",
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f->type,
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(fmt->fourcc & 0xff),
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(fmt->fourcc >> 8 & 0xff),
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(fmt->fourcc >> 16 & 0xff),
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(fmt->fourcc >> 24 & 0xff));
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return mtk_jpeg_try_fmt_mplane(f, fmt, ctx, MTK_JPEG_FMT_TYPE_OUTPUT);
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}
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static int mtk_jpeg_s_fmt_mplane(struct mtk_jpeg_ctx *ctx,
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struct v4l2_format *f)
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{
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struct vb2_queue *vq;
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struct mtk_jpeg_q_data *q_data = NULL;
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struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
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struct mtk_jpeg_dev *jpeg = ctx->jpeg;
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unsigned int f_type;
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int i;
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vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
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if (!vq)
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return -EINVAL;
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q_data = mtk_jpeg_get_q_data(ctx, f->type);
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if (vb2_is_busy(vq)) {
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v4l2_err(&jpeg->v4l2_dev, "queue busy\n");
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return -EBUSY;
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}
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f_type = V4L2_TYPE_IS_OUTPUT(f->type) ?
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MTK_JPEG_FMT_TYPE_OUTPUT : MTK_JPEG_FMT_TYPE_CAPTURE;
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q_data->fmt = mtk_jpeg_find_format(ctx, pix_mp->pixelformat, f_type);
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q_data->w = pix_mp->width;
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q_data->h = pix_mp->height;
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ctx->colorspace = pix_mp->colorspace;
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ctx->ycbcr_enc = pix_mp->ycbcr_enc;
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ctx->xfer_func = pix_mp->xfer_func;
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ctx->quantization = pix_mp->quantization;
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v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) s_fmt:%c%c%c%c wxh:%ux%u\n",
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f->type,
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(q_data->fmt->fourcc & 0xff),
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(q_data->fmt->fourcc >> 8 & 0xff),
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(q_data->fmt->fourcc >> 16 & 0xff),
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(q_data->fmt->fourcc >> 24 & 0xff),
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q_data->w, q_data->h);
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for (i = 0; i < q_data->fmt->colplanes; i++) {
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q_data->bytesperline[i] = pix_mp->plane_fmt[i].bytesperline;
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q_data->sizeimage[i] = pix_mp->plane_fmt[i].sizeimage;
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v4l2_dbg(1, debug, &jpeg->v4l2_dev,
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"plane[%d] bpl=%u, size=%u\n",
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i, q_data->bytesperline[i], q_data->sizeimage[i]);
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}
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return 0;
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}
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static int mtk_jpeg_s_fmt_vid_out_mplane(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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int ret;
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ret = mtk_jpeg_try_fmt_vid_out_mplane(file, priv, f);
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if (ret)
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return ret;
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return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f);
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}
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static int mtk_jpeg_s_fmt_vid_cap_mplane(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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int ret;
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ret = mtk_jpeg_try_fmt_vid_cap_mplane(file, priv, f);
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if (ret)
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return ret;
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return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f);
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}
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static void mtk_jpeg_queue_src_chg_event(struct mtk_jpeg_ctx *ctx)
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{
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static const struct v4l2_event ev_src_ch = {
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.type = V4L2_EVENT_SOURCE_CHANGE,
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.u.src_change.changes =
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V4L2_EVENT_SRC_CH_RESOLUTION,
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};
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v4l2_event_queue_fh(&ctx->fh, &ev_src_ch);
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}
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static int mtk_jpeg_subscribe_event(struct v4l2_fh *fh,
|
|
const struct v4l2_event_subscription *sub)
|
|
{
|
|
switch (sub->type) {
|
|
case V4L2_EVENT_SOURCE_CHANGE:
|
|
return v4l2_src_change_event_subscribe(fh, sub);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int mtk_jpeg_g_selection(struct file *file, void *priv,
|
|
struct v4l2_selection *s)
|
|
{
|
|
struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
|
|
|
|
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
switch (s->target) {
|
|
case V4L2_SEL_TGT_COMPOSE:
|
|
case V4L2_SEL_TGT_COMPOSE_DEFAULT:
|
|
s->r.width = ctx->out_q.w;
|
|
s->r.height = ctx->out_q.h;
|
|
s->r.left = 0;
|
|
s->r.top = 0;
|
|
break;
|
|
case V4L2_SEL_TGT_COMPOSE_BOUNDS:
|
|
case V4L2_SEL_TGT_COMPOSE_PADDED:
|
|
s->r.width = ctx->cap_q.w;
|
|
s->r.height = ctx->cap_q.h;
|
|
s->r.left = 0;
|
|
s->r.top = 0;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mtk_jpeg_s_selection(struct file *file, void *priv,
|
|
struct v4l2_selection *s)
|
|
{
|
|
struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
|
|
|
|
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
switch (s->target) {
|
|
case V4L2_SEL_TGT_COMPOSE:
|
|
s->r.left = 0;
|
|
s->r.top = 0;
|
|
s->r.width = ctx->out_q.w;
|
|
s->r.height = ctx->out_q.h;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mtk_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
|
|
{
|
|
struct v4l2_fh *fh = file->private_data;
|
|
struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
|
|
struct vb2_queue *vq;
|
|
struct vb2_buffer *vb;
|
|
struct mtk_jpeg_src_buf *jpeg_src_buf;
|
|
|
|
if (buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
|
|
goto end;
|
|
|
|
vq = v4l2_m2m_get_vq(fh->m2m_ctx, buf->type);
|
|
if (buf->index >= vq->num_buffers) {
|
|
dev_err(ctx->jpeg->dev, "buffer index out of range\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
vb = vq->bufs[buf->index];
|
|
jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
|
|
jpeg_src_buf->flags = (buf->m.planes[0].bytesused == 0) ?
|
|
MTK_JPEG_BUF_FLAGS_LAST_FRAME : MTK_JPEG_BUF_FLAGS_INIT;
|
|
end:
|
|
return v4l2_m2m_qbuf(file, fh->m2m_ctx, buf);
|
|
}
|
|
|
|
static const struct v4l2_ioctl_ops mtk_jpeg_ioctl_ops = {
|
|
.vidioc_querycap = mtk_jpeg_querycap,
|
|
.vidioc_enum_fmt_vid_cap_mplane = mtk_jpeg_enum_fmt_vid_cap,
|
|
.vidioc_enum_fmt_vid_out_mplane = mtk_jpeg_enum_fmt_vid_out,
|
|
.vidioc_try_fmt_vid_cap_mplane = mtk_jpeg_try_fmt_vid_cap_mplane,
|
|
.vidioc_try_fmt_vid_out_mplane = mtk_jpeg_try_fmt_vid_out_mplane,
|
|
.vidioc_g_fmt_vid_cap_mplane = mtk_jpeg_g_fmt_vid_mplane,
|
|
.vidioc_g_fmt_vid_out_mplane = mtk_jpeg_g_fmt_vid_mplane,
|
|
.vidioc_s_fmt_vid_cap_mplane = mtk_jpeg_s_fmt_vid_cap_mplane,
|
|
.vidioc_s_fmt_vid_out_mplane = mtk_jpeg_s_fmt_vid_out_mplane,
|
|
.vidioc_qbuf = mtk_jpeg_qbuf,
|
|
.vidioc_subscribe_event = mtk_jpeg_subscribe_event,
|
|
.vidioc_g_selection = mtk_jpeg_g_selection,
|
|
.vidioc_s_selection = mtk_jpeg_s_selection,
|
|
|
|
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
|
|
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
|
|
.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
|
|
.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
|
|
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
|
|
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
|
|
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
|
|
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
|
|
|
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
|
};
|
|
|
|
static int mtk_jpeg_queue_setup(struct vb2_queue *q,
|
|
unsigned int *num_buffers,
|
|
unsigned int *num_planes,
|
|
unsigned int sizes[],
|
|
struct device *alloc_ctxs[])
|
|
{
|
|
struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
|
|
struct mtk_jpeg_q_data *q_data = NULL;
|
|
struct mtk_jpeg_dev *jpeg = ctx->jpeg;
|
|
int i;
|
|
|
|
v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) buf_req count=%u\n",
|
|
q->type, *num_buffers);
|
|
|
|
q_data = mtk_jpeg_get_q_data(ctx, q->type);
|
|
if (!q_data)
|
|
return -EINVAL;
|
|
|
|
*num_planes = q_data->fmt->colplanes;
|
|
for (i = 0; i < q_data->fmt->colplanes; i++) {
|
|
sizes[i] = q_data->sizeimage[i];
|
|
v4l2_dbg(1, debug, &jpeg->v4l2_dev, "sizeimage[%d]=%u\n",
|
|
i, sizes[i]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mtk_jpeg_buf_prepare(struct vb2_buffer *vb)
|
|
{
|
|
struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
|
|
struct mtk_jpeg_q_data *q_data = NULL;
|
|
int i;
|
|
|
|
q_data = mtk_jpeg_get_q_data(ctx, vb->vb2_queue->type);
|
|
if (!q_data)
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < q_data->fmt->colplanes; i++)
|
|
vb2_set_plane_payload(vb, i, q_data->sizeimage[i]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool mtk_jpeg_check_resolution_change(struct mtk_jpeg_ctx *ctx,
|
|
struct mtk_jpeg_dec_param *param)
|
|
{
|
|
struct mtk_jpeg_dev *jpeg = ctx->jpeg;
|
|
struct mtk_jpeg_q_data *q_data;
|
|
|
|
q_data = &ctx->out_q;
|
|
if (q_data->w != param->pic_w || q_data->h != param->pic_h) {
|
|
v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Picture size change\n");
|
|
return true;
|
|
}
|
|
|
|
q_data = &ctx->cap_q;
|
|
if (q_data->fmt != mtk_jpeg_find_format(ctx, param->dst_fourcc,
|
|
MTK_JPEG_FMT_TYPE_CAPTURE)) {
|
|
v4l2_dbg(1, debug, &jpeg->v4l2_dev, "format change\n");
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx *ctx,
|
|
struct mtk_jpeg_dec_param *param)
|
|
{
|
|
struct mtk_jpeg_dev *jpeg = ctx->jpeg;
|
|
struct mtk_jpeg_q_data *q_data;
|
|
int i;
|
|
|
|
q_data = &ctx->out_q;
|
|
q_data->w = param->pic_w;
|
|
q_data->h = param->pic_h;
|
|
|
|
q_data = &ctx->cap_q;
|
|
q_data->w = param->dec_w;
|
|
q_data->h = param->dec_h;
|
|
q_data->fmt = mtk_jpeg_find_format(ctx,
|
|
param->dst_fourcc,
|
|
MTK_JPEG_FMT_TYPE_CAPTURE);
|
|
|
|
for (i = 0; i < q_data->fmt->colplanes; i++) {
|
|
q_data->bytesperline[i] = param->mem_stride[i];
|
|
q_data->sizeimage[i] = param->comp_size[i];
|
|
}
|
|
|
|
v4l2_dbg(1, debug, &jpeg->v4l2_dev,
|
|
"set_parse cap:%c%c%c%c pic(%u, %u), buf(%u, %u)\n",
|
|
(param->dst_fourcc & 0xff),
|
|
(param->dst_fourcc >> 8 & 0xff),
|
|
(param->dst_fourcc >> 16 & 0xff),
|
|
(param->dst_fourcc >> 24 & 0xff),
|
|
param->pic_w, param->pic_h,
|
|
param->dec_w, param->dec_h);
|
|
}
|
|
|
|
static void mtk_jpeg_buf_queue(struct vb2_buffer *vb)
|
|
{
|
|
struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
|
|
struct mtk_jpeg_dec_param *param;
|
|
struct mtk_jpeg_dev *jpeg = ctx->jpeg;
|
|
struct mtk_jpeg_src_buf *jpeg_src_buf;
|
|
bool header_valid;
|
|
|
|
v4l2_dbg(2, debug, &jpeg->v4l2_dev, "(%d) buf_q id=%d, vb=%p\n",
|
|
vb->vb2_queue->type, vb->index, vb);
|
|
|
|
if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
|
|
goto end;
|
|
|
|
jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
|
|
param = &jpeg_src_buf->dec_param;
|
|
memset(param, 0, sizeof(*param));
|
|
|
|
if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) {
|
|
v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Got eos\n");
|
|
goto end;
|
|
}
|
|
header_valid = mtk_jpeg_parse(param, (u8 *)vb2_plane_vaddr(vb, 0),
|
|
vb2_get_plane_payload(vb, 0));
|
|
if (!header_valid) {
|
|
v4l2_err(&jpeg->v4l2_dev, "Header invalid.\n");
|
|
vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
|
|
return;
|
|
}
|
|
|
|
if (ctx->state == MTK_JPEG_INIT) {
|
|
struct vb2_queue *dst_vq = v4l2_m2m_get_vq(
|
|
ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
|
|
|
|
mtk_jpeg_queue_src_chg_event(ctx);
|
|
mtk_jpeg_set_queue_data(ctx, param);
|
|
ctx->state = vb2_is_streaming(dst_vq) ?
|
|
MTK_JPEG_SOURCE_CHANGE : MTK_JPEG_RUNNING;
|
|
}
|
|
end:
|
|
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, to_vb2_v4l2_buffer(vb));
|
|
}
|
|
|
|
static void *mtk_jpeg_buf_remove(struct mtk_jpeg_ctx *ctx,
|
|
enum v4l2_buf_type type)
|
|
{
|
|
if (V4L2_TYPE_IS_OUTPUT(type))
|
|
return v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
|
|
else
|
|
return v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
|
|
}
|
|
|
|
static int mtk_jpeg_start_streaming(struct vb2_queue *q, unsigned int count)
|
|
{
|
|
struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
|
|
struct vb2_buffer *vb;
|
|
int ret = 0;
|
|
|
|
ret = pm_runtime_get_sync(ctx->jpeg->dev);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
return 0;
|
|
err:
|
|
while ((vb = mtk_jpeg_buf_remove(ctx, q->type)))
|
|
v4l2_m2m_buf_done(to_vb2_v4l2_buffer(vb), VB2_BUF_STATE_QUEUED);
|
|
return ret;
|
|
}
|
|
|
|
static void mtk_jpeg_stop_streaming(struct vb2_queue *q)
|
|
{
|
|
struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
|
|
struct vb2_buffer *vb;
|
|
|
|
/*
|
|
* STREAMOFF is an acknowledgment for source change event.
|
|
* Before STREAMOFF, we still have to return the old resolution and
|
|
* subsampling. Update capture queue when the stream is off.
|
|
*/
|
|
if (ctx->state == MTK_JPEG_SOURCE_CHANGE &&
|
|
!V4L2_TYPE_IS_OUTPUT(q->type)) {
|
|
struct mtk_jpeg_src_buf *src_buf;
|
|
|
|
vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
|
|
src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
|
|
mtk_jpeg_set_queue_data(ctx, &src_buf->dec_param);
|
|
ctx->state = MTK_JPEG_RUNNING;
|
|
} else if (V4L2_TYPE_IS_OUTPUT(q->type)) {
|
|
ctx->state = MTK_JPEG_INIT;
|
|
}
|
|
|
|
while ((vb = mtk_jpeg_buf_remove(ctx, q->type)))
|
|
v4l2_m2m_buf_done(to_vb2_v4l2_buffer(vb), VB2_BUF_STATE_ERROR);
|
|
|
|
pm_runtime_put_sync(ctx->jpeg->dev);
|
|
}
|
|
|
|
static struct vb2_ops mtk_jpeg_qops = {
|
|
.queue_setup = mtk_jpeg_queue_setup,
|
|
.buf_prepare = mtk_jpeg_buf_prepare,
|
|
.buf_queue = mtk_jpeg_buf_queue,
|
|
.wait_prepare = vb2_ops_wait_prepare,
|
|
.wait_finish = vb2_ops_wait_finish,
|
|
.start_streaming = mtk_jpeg_start_streaming,
|
|
.stop_streaming = mtk_jpeg_stop_streaming,
|
|
};
|
|
|
|
static void mtk_jpeg_set_dec_src(struct mtk_jpeg_ctx *ctx,
|
|
struct vb2_buffer *src_buf,
|
|
struct mtk_jpeg_bs *bs)
|
|
{
|
|
bs->str_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
|
|
bs->end_addr = bs->str_addr +
|
|
mtk_jpeg_align(vb2_get_plane_payload(src_buf, 0), 16);
|
|
bs->size = mtk_jpeg_align(vb2_plane_size(src_buf, 0), 128);
|
|
}
|
|
|
|
static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx,
|
|
struct mtk_jpeg_dec_param *param,
|
|
struct vb2_buffer *dst_buf,
|
|
struct mtk_jpeg_fb *fb)
|
|
{
|
|
int i;
|
|
|
|
if (param->comp_num != dst_buf->num_planes) {
|
|
dev_err(ctx->jpeg->dev, "plane number mismatch (%u != %u)\n",
|
|
param->comp_num, dst_buf->num_planes);
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (i = 0; i < dst_buf->num_planes; i++) {
|
|
if (vb2_plane_size(dst_buf, i) < param->comp_size[i]) {
|
|
dev_err(ctx->jpeg->dev,
|
|
"buffer size is underflow (%lu < %u)\n",
|
|
vb2_plane_size(dst_buf, 0),
|
|
param->comp_size[i]);
|
|
return -EINVAL;
|
|
}
|
|
fb->plane_addr[i] = vb2_dma_contig_plane_dma_addr(dst_buf, i);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mtk_jpeg_device_run(void *priv)
|
|
{
|
|
struct mtk_jpeg_ctx *ctx = priv;
|
|
struct mtk_jpeg_dev *jpeg = ctx->jpeg;
|
|
struct vb2_buffer *src_buf, *dst_buf;
|
|
enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
|
|
unsigned long flags;
|
|
struct mtk_jpeg_src_buf *jpeg_src_buf;
|
|
struct mtk_jpeg_bs bs;
|
|
struct mtk_jpeg_fb fb;
|
|
int i;
|
|
|
|
src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
|
|
dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
|
|
jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(src_buf);
|
|
|
|
if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) {
|
|
for (i = 0; i < dst_buf->num_planes; i++)
|
|
vb2_set_plane_payload(dst_buf, i, 0);
|
|
buf_state = VB2_BUF_STATE_DONE;
|
|
goto dec_end;
|
|
}
|
|
|
|
if (mtk_jpeg_check_resolution_change(ctx, &jpeg_src_buf->dec_param)) {
|
|
mtk_jpeg_queue_src_chg_event(ctx);
|
|
ctx->state = MTK_JPEG_SOURCE_CHANGE;
|
|
v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
|
|
return;
|
|
}
|
|
|
|
mtk_jpeg_set_dec_src(ctx, src_buf, &bs);
|
|
if (mtk_jpeg_set_dec_dst(ctx, &jpeg_src_buf->dec_param, dst_buf, &fb))
|
|
goto dec_end;
|
|
|
|
spin_lock_irqsave(&jpeg->hw_lock, flags);
|
|
mtk_jpeg_dec_reset(jpeg->dec_reg_base);
|
|
mtk_jpeg_dec_set_config(jpeg->dec_reg_base,
|
|
&jpeg_src_buf->dec_param, &bs, &fb);
|
|
|
|
mtk_jpeg_dec_start(jpeg->dec_reg_base);
|
|
spin_unlock_irqrestore(&jpeg->hw_lock, flags);
|
|
return;
|
|
|
|
dec_end:
|
|
v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
|
|
v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
|
|
v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf), buf_state);
|
|
v4l2_m2m_buf_done(to_vb2_v4l2_buffer(dst_buf), buf_state);
|
|
v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
|
|
}
|
|
|
|
static int mtk_jpeg_job_ready(void *priv)
|
|
{
|
|
struct mtk_jpeg_ctx *ctx = priv;
|
|
|
|
return (ctx->state == MTK_JPEG_RUNNING) ? 1 : 0;
|
|
}
|
|
|
|
static void mtk_jpeg_job_abort(void *priv)
|
|
{
|
|
}
|
|
|
|
static struct v4l2_m2m_ops mtk_jpeg_m2m_ops = {
|
|
.device_run = mtk_jpeg_device_run,
|
|
.job_ready = mtk_jpeg_job_ready,
|
|
.job_abort = mtk_jpeg_job_abort,
|
|
};
|
|
|
|
static int mtk_jpeg_queue_init(void *priv, struct vb2_queue *src_vq,
|
|
struct vb2_queue *dst_vq)
|
|
{
|
|
struct mtk_jpeg_ctx *ctx = priv;
|
|
int ret;
|
|
|
|
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
|
|
src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
|
|
src_vq->drv_priv = ctx;
|
|
src_vq->buf_struct_size = sizeof(struct mtk_jpeg_src_buf);
|
|
src_vq->ops = &mtk_jpeg_qops;
|
|
src_vq->mem_ops = &vb2_dma_contig_memops;
|
|
src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
|
|
src_vq->lock = &ctx->jpeg->lock;
|
|
src_vq->dev = ctx->jpeg->dev;
|
|
ret = vb2_queue_init(src_vq);
|
|
if (ret)
|
|
return ret;
|
|
|
|
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
|
dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
|
|
dst_vq->drv_priv = ctx;
|
|
dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
|
|
dst_vq->ops = &mtk_jpeg_qops;
|
|
dst_vq->mem_ops = &vb2_dma_contig_memops;
|
|
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
|
|
dst_vq->lock = &ctx->jpeg->lock;
|
|
dst_vq->dev = ctx->jpeg->dev;
|
|
ret = vb2_queue_init(dst_vq);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg)
|
|
{
|
|
int ret;
|
|
|
|
ret = mtk_smi_larb_get(jpeg->larb);
|
|
if (ret)
|
|
dev_err(jpeg->dev, "mtk_smi_larb_get larbvdec fail %d\n", ret);
|
|
clk_prepare_enable(jpeg->clk_jdec_smi);
|
|
clk_prepare_enable(jpeg->clk_jdec);
|
|
}
|
|
|
|
static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg)
|
|
{
|
|
clk_disable_unprepare(jpeg->clk_jdec);
|
|
clk_disable_unprepare(jpeg->clk_jdec_smi);
|
|
mtk_smi_larb_put(jpeg->larb);
|
|
}
|
|
|
|
static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
|
|
{
|
|
struct mtk_jpeg_dev *jpeg = priv;
|
|
struct mtk_jpeg_ctx *ctx;
|
|
struct vb2_buffer *src_buf, *dst_buf;
|
|
struct mtk_jpeg_src_buf *jpeg_src_buf;
|
|
enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
|
|
u32 dec_irq_ret;
|
|
u32 dec_ret;
|
|
int i;
|
|
|
|
dec_ret = mtk_jpeg_dec_get_int_status(jpeg->dec_reg_base);
|
|
dec_irq_ret = mtk_jpeg_dec_enum_result(dec_ret);
|
|
ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
|
|
if (!ctx) {
|
|
v4l2_err(&jpeg->v4l2_dev, "Context is NULL\n");
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
|
|
dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
|
|
jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(src_buf);
|
|
|
|
if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
|
|
mtk_jpeg_dec_reset(jpeg->dec_reg_base);
|
|
|
|
if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
|
|
dev_err(jpeg->dev, "decode failed\n");
|
|
goto dec_end;
|
|
}
|
|
|
|
for (i = 0; i < dst_buf->num_planes; i++)
|
|
vb2_set_plane_payload(dst_buf, i,
|
|
jpeg_src_buf->dec_param.comp_size[i]);
|
|
|
|
buf_state = VB2_BUF_STATE_DONE;
|
|
|
|
dec_end:
|
|
v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf), buf_state);
|
|
v4l2_m2m_buf_done(to_vb2_v4l2_buffer(dst_buf), buf_state);
|
|
v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void mtk_jpeg_set_default_params(struct mtk_jpeg_ctx *ctx)
|
|
{
|
|
struct mtk_jpeg_q_data *q = &ctx->out_q;
|
|
int i;
|
|
|
|
ctx->colorspace = V4L2_COLORSPACE_JPEG,
|
|
ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
|
|
ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
|
|
ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
|
|
|
|
q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG,
|
|
MTK_JPEG_FMT_TYPE_OUTPUT);
|
|
q->w = MTK_JPEG_MIN_WIDTH;
|
|
q->h = MTK_JPEG_MIN_HEIGHT;
|
|
q->bytesperline[0] = 0;
|
|
q->sizeimage[0] = MTK_JPEG_DEFAULT_SIZEIMAGE;
|
|
|
|
q = &ctx->cap_q;
|
|
q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_YUV420M,
|
|
MTK_JPEG_FMT_TYPE_CAPTURE);
|
|
q->w = MTK_JPEG_MIN_WIDTH;
|
|
q->h = MTK_JPEG_MIN_HEIGHT;
|
|
|
|
for (i = 0; i < q->fmt->colplanes; i++) {
|
|
u32 stride = q->w * q->fmt->h_sample[i] / 4;
|
|
u32 h = q->h * q->fmt->v_sample[i] / 4;
|
|
|
|
q->bytesperline[i] = stride;
|
|
q->sizeimage[i] = stride * h;
|
|
}
|
|
}
|
|
|
|
static int mtk_jpeg_open(struct file *file)
|
|
{
|
|
struct mtk_jpeg_dev *jpeg = video_drvdata(file);
|
|
struct video_device *vfd = video_devdata(file);
|
|
struct mtk_jpeg_ctx *ctx;
|
|
int ret = 0;
|
|
|
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
|
|
if (!ctx)
|
|
return -ENOMEM;
|
|
|
|
if (mutex_lock_interruptible(&jpeg->lock)) {
|
|
ret = -ERESTARTSYS;
|
|
goto free;
|
|
}
|
|
|
|
v4l2_fh_init(&ctx->fh, vfd);
|
|
file->private_data = &ctx->fh;
|
|
v4l2_fh_add(&ctx->fh);
|
|
|
|
ctx->jpeg = jpeg;
|
|
ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx,
|
|
mtk_jpeg_queue_init);
|
|
if (IS_ERR(ctx->fh.m2m_ctx)) {
|
|
ret = PTR_ERR(ctx->fh.m2m_ctx);
|
|
goto error;
|
|
}
|
|
|
|
mtk_jpeg_set_default_params(ctx);
|
|
mutex_unlock(&jpeg->lock);
|
|
return 0;
|
|
|
|
error:
|
|
v4l2_fh_del(&ctx->fh);
|
|
v4l2_fh_exit(&ctx->fh);
|
|
mutex_unlock(&jpeg->lock);
|
|
free:
|
|
kfree(ctx);
|
|
return ret;
|
|
}
|
|
|
|
static int mtk_jpeg_release(struct file *file)
|
|
{
|
|
struct mtk_jpeg_dev *jpeg = video_drvdata(file);
|
|
struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(file->private_data);
|
|
|
|
mutex_lock(&jpeg->lock);
|
|
v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
|
|
v4l2_fh_del(&ctx->fh);
|
|
v4l2_fh_exit(&ctx->fh);
|
|
kfree(ctx);
|
|
mutex_unlock(&jpeg->lock);
|
|
return 0;
|
|
}
|
|
|
|
static const struct v4l2_file_operations mtk_jpeg_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = mtk_jpeg_open,
|
|
.release = mtk_jpeg_release,
|
|
.poll = v4l2_m2m_fop_poll,
|
|
.unlocked_ioctl = video_ioctl2,
|
|
.mmap = v4l2_m2m_fop_mmap,
|
|
};
|
|
|
|
static int mtk_jpeg_clk_init(struct mtk_jpeg_dev *jpeg)
|
|
{
|
|
struct device_node *node;
|
|
struct platform_device *pdev;
|
|
|
|
node = of_parse_phandle(jpeg->dev->of_node, "mediatek,larb", 0);
|
|
if (!node)
|
|
return -EINVAL;
|
|
pdev = of_find_device_by_node(node);
|
|
if (WARN_ON(!pdev)) {
|
|
of_node_put(node);
|
|
return -EINVAL;
|
|
}
|
|
of_node_put(node);
|
|
|
|
jpeg->larb = &pdev->dev;
|
|
|
|
jpeg->clk_jdec = devm_clk_get(jpeg->dev, "jpgdec");
|
|
if (IS_ERR(jpeg->clk_jdec))
|
|
return -EINVAL;
|
|
|
|
jpeg->clk_jdec_smi = devm_clk_get(jpeg->dev, "jpgdec-smi");
|
|
if (IS_ERR(jpeg->clk_jdec_smi))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mtk_jpeg_probe(struct platform_device *pdev)
|
|
{
|
|
struct mtk_jpeg_dev *jpeg;
|
|
struct resource *res;
|
|
int dec_irq;
|
|
int ret;
|
|
|
|
jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL);
|
|
if (!jpeg)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&jpeg->lock);
|
|
spin_lock_init(&jpeg->hw_lock);
|
|
jpeg->dev = &pdev->dev;
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
jpeg->dec_reg_base = devm_ioremap_resource(&pdev->dev, res);
|
|
if (IS_ERR(jpeg->dec_reg_base)) {
|
|
ret = PTR_ERR(jpeg->dec_reg_base);
|
|
return ret;
|
|
}
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
|
|
dec_irq = platform_get_irq(pdev, 0);
|
|
if (!res || dec_irq < 0) {
|
|
dev_err(&pdev->dev, "Failed to get dec_irq %d.\n", dec_irq);
|
|
ret = -EINVAL;
|
|
return ret;
|
|
}
|
|
|
|
ret = devm_request_irq(&pdev->dev, dec_irq, mtk_jpeg_dec_irq, 0,
|
|
pdev->name, jpeg);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "Failed to request dec_irq %d (%d)\n",
|
|
dec_irq, ret);
|
|
ret = -EINVAL;
|
|
goto err_req_irq;
|
|
}
|
|
|
|
ret = mtk_jpeg_clk_init(jpeg);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "Failed to init clk, err %d\n", ret);
|
|
goto err_clk_init;
|
|
}
|
|
|
|
ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "Failed to register v4l2 device\n");
|
|
ret = -EINVAL;
|
|
goto err_dev_register;
|
|
}
|
|
|
|
jpeg->m2m_dev = v4l2_m2m_init(&mtk_jpeg_m2m_ops);
|
|
if (IS_ERR(jpeg->m2m_dev)) {
|
|
v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n");
|
|
ret = PTR_ERR(jpeg->m2m_dev);
|
|
goto err_m2m_init;
|
|
}
|
|
|
|
jpeg->dec_vdev = video_device_alloc();
|
|
if (!jpeg->dec_vdev) {
|
|
ret = -ENOMEM;
|
|
goto err_dec_vdev_alloc;
|
|
}
|
|
snprintf(jpeg->dec_vdev->name, sizeof(jpeg->dec_vdev->name),
|
|
"%s-dec", MTK_JPEG_NAME);
|
|
jpeg->dec_vdev->fops = &mtk_jpeg_fops;
|
|
jpeg->dec_vdev->ioctl_ops = &mtk_jpeg_ioctl_ops;
|
|
jpeg->dec_vdev->minor = -1;
|
|
jpeg->dec_vdev->release = video_device_release;
|
|
jpeg->dec_vdev->lock = &jpeg->lock;
|
|
jpeg->dec_vdev->v4l2_dev = &jpeg->v4l2_dev;
|
|
jpeg->dec_vdev->vfl_dir = VFL_DIR_M2M;
|
|
jpeg->dec_vdev->device_caps = V4L2_CAP_STREAMING |
|
|
V4L2_CAP_VIDEO_M2M_MPLANE;
|
|
|
|
ret = video_register_device(jpeg->dec_vdev, VFL_TYPE_GRABBER, 3);
|
|
if (ret) {
|
|
v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");
|
|
goto err_dec_vdev_register;
|
|
}
|
|
|
|
video_set_drvdata(jpeg->dec_vdev, jpeg);
|
|
v4l2_info(&jpeg->v4l2_dev,
|
|
"decoder device registered as /dev/video%d (%d,%d)\n",
|
|
jpeg->dec_vdev->num, VIDEO_MAJOR, jpeg->dec_vdev->minor);
|
|
|
|
platform_set_drvdata(pdev, jpeg);
|
|
|
|
pm_runtime_enable(&pdev->dev);
|
|
|
|
return 0;
|
|
|
|
err_dec_vdev_register:
|
|
video_device_release(jpeg->dec_vdev);
|
|
|
|
err_dec_vdev_alloc:
|
|
v4l2_m2m_release(jpeg->m2m_dev);
|
|
|
|
err_m2m_init:
|
|
v4l2_device_unregister(&jpeg->v4l2_dev);
|
|
|
|
err_dev_register:
|
|
|
|
err_clk_init:
|
|
|
|
err_req_irq:
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mtk_jpeg_remove(struct platform_device *pdev)
|
|
{
|
|
struct mtk_jpeg_dev *jpeg = platform_get_drvdata(pdev);
|
|
|
|
pm_runtime_disable(&pdev->dev);
|
|
video_unregister_device(jpeg->dec_vdev);
|
|
video_device_release(jpeg->dec_vdev);
|
|
v4l2_m2m_release(jpeg->m2m_dev);
|
|
v4l2_device_unregister(&jpeg->v4l2_dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static __maybe_unused int mtk_jpeg_pm_suspend(struct device *dev)
|
|
{
|
|
struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
|
|
|
|
mtk_jpeg_dec_reset(jpeg->dec_reg_base);
|
|
mtk_jpeg_clk_off(jpeg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static __maybe_unused int mtk_jpeg_pm_resume(struct device *dev)
|
|
{
|
|
struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
|
|
|
|
mtk_jpeg_clk_on(jpeg);
|
|
mtk_jpeg_dec_reset(jpeg->dec_reg_base);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static __maybe_unused int mtk_jpeg_suspend(struct device *dev)
|
|
{
|
|
int ret;
|
|
|
|
if (pm_runtime_suspended(dev))
|
|
return 0;
|
|
|
|
ret = mtk_jpeg_pm_suspend(dev);
|
|
return ret;
|
|
}
|
|
|
|
static __maybe_unused int mtk_jpeg_resume(struct device *dev)
|
|
{
|
|
int ret;
|
|
|
|
if (pm_runtime_suspended(dev))
|
|
return 0;
|
|
|
|
ret = mtk_jpeg_pm_resume(dev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct dev_pm_ops mtk_jpeg_pm_ops = {
|
|
SET_SYSTEM_SLEEP_PM_OPS(mtk_jpeg_suspend, mtk_jpeg_resume)
|
|
SET_RUNTIME_PM_OPS(mtk_jpeg_pm_suspend, mtk_jpeg_pm_resume, NULL)
|
|
};
|
|
|
|
static const struct of_device_id mtk_jpeg_match[] = {
|
|
{
|
|
.compatible = "mediatek,mt8173-jpgdec",
|
|
.data = NULL,
|
|
},
|
|
{
|
|
.compatible = "mediatek,mt2701-jpgdec",
|
|
.data = NULL,
|
|
},
|
|
{},
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(of, mtk_jpeg_match);
|
|
|
|
static struct platform_driver mtk_jpeg_driver = {
|
|
.probe = mtk_jpeg_probe,
|
|
.remove = mtk_jpeg_remove,
|
|
.driver = {
|
|
.name = MTK_JPEG_NAME,
|
|
.of_match_table = mtk_jpeg_match,
|
|
.pm = &mtk_jpeg_pm_ops,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(mtk_jpeg_driver);
|
|
|
|
MODULE_DESCRIPTION("MediaTek JPEG codec driver");
|
|
MODULE_LICENSE("GPL v2");
|