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SubjectRe: [PATCH v3 5/5] media: platform: Add jpeg dec/enc feature
From
Date
On 9/24/19 9:43 AM, Xia Jiang wrote:
> Add mtk jpeg encode v4l2 driver based on jpeg decode, because that jpeg
> decode and encode have great similarities with function operation.
>
> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com>
> ---
> v3: delete Change-Id
> only test once handler->error after the last v4l2_ctrl_new_std()
> seperate changes of v4l2-ctrls.c and v4l2-controls.h to new patch
> v2: fix compliance test fail, check created buffer size in driver
> ---
> drivers/media/platform/mtk-jpeg/Makefile | 5 +-
> .../media/platform/mtk-jpeg/mtk_jpeg_core.c | 735 ++++++++++++++----
> .../media/platform/mtk-jpeg/mtk_jpeg_core.h | 114 ++-
> .../media/platform/mtk-jpeg/mtk_jpeg_dec_hw.h | 7 +-
> .../media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c | 175 +++++
> .../media/platform/mtk-jpeg/mtk_jpeg_enc_hw.h | 60 ++
> .../platform/mtk-jpeg/mtk_jpeg_enc_reg.h | 49 ++
> 7 files changed, 975 insertions(+), 170 deletions(-)
> create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
> create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.h
> create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_reg.h
>
> diff --git a/drivers/media/platform/mtk-jpeg/Makefile b/drivers/media/platform/mtk-jpeg/Makefile
> index 48516dcf96e6..76c33aad0f3f 100644
> --- a/drivers/media/platform/mtk-jpeg/Makefile
> +++ b/drivers/media/platform/mtk-jpeg/Makefile
> @@ -1,3 +1,6 @@
> # SPDX-License-Identifier: GPL-2.0-only
> -mtk_jpeg-objs := mtk_jpeg_core.o mtk_jpeg_dec_hw.o mtk_jpeg_dec_parse.o
> +mtk_jpeg-objs := mtk_jpeg_core.o \
> + mtk_jpeg_dec_hw.o \
> + mtk_jpeg_dec_parse.o \
> + mtk_jpeg_enc_hw.o
> obj-$(CONFIG_VIDEO_MEDIATEK_JPEG) += mtk_jpeg.o
> diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
> index 5f0990fce8ef..aa18b01802ed 100644
> --- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
> +++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
> @@ -3,6 +3,7 @@
> * Copyright (c) 2016 MediaTek Inc.
> * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
> * Rick Chang <rick.chang@mediatek.com>
> + * Xia Jiang <xia.jiang@mediatek.com>
> */
>
> #include <linux/clk.h>
> @@ -23,6 +24,7 @@
> #include <media/videobuf2-dma-contig.h>
> #include <soc/mediatek/smi.h>
>
> +#include "mtk_jpeg_enc_hw.h"
> #include "mtk_jpeg_dec_hw.h"
> #include "mtk_jpeg_core.h"
> #include "mtk_jpeg_dec_parse.h"
> @@ -31,7 +33,8 @@ static struct mtk_jpeg_fmt mtk_jpeg_formats[] = {
> {
> .fourcc = V4L2_PIX_FMT_JPEG,
> .colplanes = 1,
> - .flags = MTK_JPEG_FMT_FLAG_DEC_OUTPUT,
> + .flags = MTK_JPEG_FMT_FLAG_DEC_OUTPUT |
> + MTK_JPEG_FMT_FLAG_ENC_CAPTURE,
> },
> {
> .fourcc = V4L2_PIX_FMT_YUV420M,
> @@ -51,6 +54,42 @@ static struct mtk_jpeg_fmt mtk_jpeg_formats[] = {
> .v_align = 3,
> .flags = MTK_JPEG_FMT_FLAG_DEC_CAPTURE,
> },
> + {
> + .fourcc = V4L2_PIX_FMT_NV12M,
> + .h_sample = {4, 2, 2},
> + .v_sample = {4, 2, 2},
> + .colplanes = 2,
> + .h_align = 4,
> + .v_align = 4,
> + .flags = MTK_JPEG_FMT_FLAG_ENC_OUTPUT,
> + },
> + {
> + .fourcc = V4L2_PIX_FMT_NV21M,
> + .h_sample = {4, 2, 2},
> + .v_sample = {4, 2, 2},
> + .colplanes = 2,
> + .h_align = 4,
> + .v_align = 4,
> + .flags = MTK_JPEG_FMT_FLAG_ENC_OUTPUT,
> + },
> + {
> + .fourcc = V4L2_PIX_FMT_YUYV,
> + .h_sample = {4, 2, 2},
> + .v_sample = {4, 4, 4},
> + .colplanes = 1,
> + .h_align = 4,
> + .v_align = 3,
> + .flags = MTK_JPEG_FMT_FLAG_ENC_OUTPUT,
> + },
> + {
> + .fourcc = V4L2_PIX_FMT_YVYU,
> + .h_sample = {4, 2, 2},
> + .v_sample = {4, 4, 4},
> + .colplanes = 1,
> + .h_align = 4,
> + .v_align = 3,
> + .flags = MTK_JPEG_FMT_FLAG_ENC_OUTPUT,
> + },
> };
>
> #define MTK_JPEG_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_formats)
> @@ -65,11 +104,19 @@ struct mtk_jpeg_src_buf {
> struct list_head list;
> int flags;
> struct mtk_jpeg_dec_param dec_param;
> + struct mtk_jpeg_enc_param enc_param;
> };
>
> +#define MTK_MAX_CTRLS_HINT 20
> +
> static int debug;
> module_param(debug, int, 0644);
>
> +static inline struct mtk_jpeg_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
> +{
> + return container_of(ctrl->handler, struct mtk_jpeg_ctx, ctrl_hdl);
> +}
> +
> static inline struct mtk_jpeg_ctx *mtk_jpeg_fh_to_ctx(struct v4l2_fh *fh)
> {
> return container_of(fh, struct mtk_jpeg_ctx, fh);
> @@ -86,10 +133,70 @@ static int mtk_jpeg_querycap(struct file *file, void *priv,
> {
> struct mtk_jpeg_dev *jpeg = video_drvdata(file);
>
> - strscpy(cap->driver, MTK_JPEG_NAME " decoder", sizeof(cap->driver));
> - strscpy(cap->card, MTK_JPEG_NAME " decoder", sizeof(cap->card));
> - snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
> - dev_name(jpeg->dev));
> + strscpy(cap->driver, MTK_JPEG_NAME, sizeof(cap->driver));
> + if (jpeg->mode == MTK_JPEG_ENC)
> + strscpy(cap->card, MTK_JPEG_NAME " encoder", sizeof(cap->card));
> + else
> + strscpy(cap->card, MTK_JPEG_NAME " decoder", sizeof(cap->card));
> + snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
> + dev_name(jpeg->dev));
> +
> + return 0;
> +}
> +
> +static int vidioc_jpeg_s_ctrl(struct v4l2_ctrl *ctrl)
> +{
> + struct mtk_jpeg_ctx *ctx = ctrl_to_ctx(ctrl);
> + struct jpeg_enc_param *p = &ctx->jpeg_param;
> + struct mtk_jpeg_dev *jpeg = ctx->jpeg;
> + int ret = 0;
> +
> + switch (ctrl->id) {
> + case V4L2_CID_JPEG_RESTART_INTERVAL:
> + p->restart_interval = ctrl->val;
> + break;
> + case V4L2_CID_JPEG_COMPRESSION_QUALITY:
> + p->enc_quality = ctrl->val;
> + break;
> + case V4L2_CID_JPEG_ENABLE_EXIF:
> + p->enable_exif = ctrl->val;
> + break;
> + }
> +
> + v4l2_dbg(2, debug, &jpeg->v4l2_dev, "%s val = %d",
> + v4l2_ctrl_get_name(ctrl->id), ctrl->val);
> +
> + return ret;
> +}
> +
> +static const struct v4l2_ctrl_ops mtk_jpeg_ctrl_ops = {
> + .s_ctrl = vidioc_jpeg_s_ctrl,
> +};
> +
> +int mtk_jpeg_ctrls_setup(struct mtk_jpeg_ctx *ctx)
> +{
> + const struct v4l2_ctrl_ops *ops = &mtk_jpeg_ctrl_ops;
> + struct v4l2_ctrl_handler *handler = &ctx->ctrl_hdl;
> + struct mtk_jpeg_dev *jpeg = ctx->jpeg;
> +
> + v4l2_ctrl_handler_init(handler, MTK_MAX_CTRLS_HINT);
> +
> + if (jpeg->mode == MTK_JPEG_ENC) {
> + v4l2_ctrl_new_std(handler, ops, V4L2_CID_JPEG_RESTART_INTERVAL,
> + 0, 100, 1, 0);
> + v4l2_ctrl_new_std(handler, ops,
> + V4L2_CID_JPEG_COMPRESSION_QUALITY, 48, 100, 1,
> + 90);
> + v4l2_ctrl_new_std(handler, ops, V4L2_CID_JPEG_ENABLE_EXIF, 0,
> + 1, 1, 0);
> +
> + if (handler->error) {
> + v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
> + return handler->error;
> + }
> + }
> +
> + v4l2_ctrl_handler_setup(&ctx->ctrl_hdl);
>
> return 0;
> }
> @@ -118,23 +225,29 @@ static int mtk_jpeg_enum_fmt(struct mtk_jpeg_fmt *mtk_jpeg_formats, int n,
> static int mtk_jpeg_enum_fmt_vid_cap(struct file *file, void *priv,
> struct v4l2_fmtdesc *f)
> {
> + struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
> +
> return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
> + ctx->jpeg->mode == MTK_JPEG_ENC ?
> + MTK_JPEG_FMT_FLAG_ENC_CAPTURE :
> MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
> }
>
> static int mtk_jpeg_enum_fmt_vid_out(struct file *file, void *priv,
> struct v4l2_fmtdesc *f)
> {
> + struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
> +
> return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
> + ctx->jpeg->mode == MTK_JPEG_ENC ?
> + MTK_JPEG_FMT_FLAG_ENC_OUTPUT :
> MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
> }
>
> -static struct mtk_jpeg_q_data *mtk_jpeg_get_q_data(struct mtk_jpeg_ctx *ctx,
> - enum v4l2_buf_type type)
> +static struct mtk_jpeg_q_data *
> +mtk_jpeg_get_q_data(struct mtk_jpeg_ctx *ctx, enum v4l2_buf_type type)
> {
> - if (V4L2_TYPE_IS_OUTPUT(type))
> - return &ctx->out_q;
> - return &ctx->cap_q;
> + return V4L2_TYPE_IS_OUTPUT(type) ? &ctx->out_q : &ctx->cap_q;
> }
>
> static struct mtk_jpeg_fmt *mtk_jpeg_find_format(struct mtk_jpeg_ctx *ctx,
> @@ -143,9 +256,14 @@ static struct mtk_jpeg_fmt *mtk_jpeg_find_format(struct mtk_jpeg_ctx *ctx,
> {
> unsigned int k, fmt_flag;
>
> - fmt_flag = (fmt_type == MTK_JPEG_FMT_TYPE_OUTPUT) ?
> - MTK_JPEG_FMT_FLAG_DEC_OUTPUT :
> - MTK_JPEG_FMT_FLAG_DEC_CAPTURE;
> + if (ctx->jpeg->mode == MTK_JPEG_ENC)
> + fmt_flag = (fmt_type == MTK_JPEG_FMT_TYPE_OUTPUT) ?
> + MTK_JPEG_FMT_FLAG_ENC_OUTPUT :
> + MTK_JPEG_FMT_FLAG_ENC_CAPTURE;
> + else
> + fmt_flag = (fmt_type == MTK_JPEG_FMT_TYPE_OUTPUT) ?
> + MTK_JPEG_FMT_FLAG_DEC_OUTPUT :
> + MTK_JPEG_FMT_FLAG_DEC_CAPTURE;
>
> for (k = 0; k < MTK_JPEG_NUM_FORMATS; k++) {
> struct mtk_jpeg_fmt *fmt = &mtk_jpeg_formats[k];
> @@ -202,7 +320,7 @@ static int mtk_jpeg_try_fmt_mplane(struct v4l2_format *f,
> {
> struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
> struct mtk_jpeg_dev *jpeg = ctx->jpeg;
> - int i;
> + int i, align_w, align_h;
>
> memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
> pix_mp->field = V4L2_FIELD_NONE;
> @@ -216,36 +334,111 @@ static int mtk_jpeg_try_fmt_mplane(struct v4l2_format *f,
> pix_mp->pixelformat = fmt->fourcc;
>
> if (q_type == MTK_JPEG_FMT_TYPE_OUTPUT) {
> - struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[0];
> + if (jpeg->mode == MTK_JPEG_ENC) {
> + pix_mp->height = clamp(pix_mp->height,
> + MTK_JPEG_MIN_HEIGHT,
> + MTK_JPEG_MAX_HEIGHT);
> + pix_mp->width = clamp(pix_mp->width,
> + MTK_JPEG_MIN_WIDTH,
> + MTK_JPEG_MAX_WIDTH);
> + align_w = pix_mp->width;
> + align_h = pix_mp->height;
> + align_w = round_up(align_w, 2);
> + if (pix_mp->num_planes == 1U) {
> + align_w = align_w << 1;
> + mtk_jpeg_bound_align_image(&align_w,
> + MTK_JPEG_MIN_WIDTH,
> + MTK_JPEG_MAX_WIDTH,
> + 5, &align_h,
> + MTK_JPEG_MIN_HEIGHT,
> + MTK_JPEG_MAX_HEIGHT,
> + 3);
> + pix_mp->plane_fmt[0].bytesperline = align_w;
> + pix_mp->plane_fmt[0].sizeimage =
> + align_w * align_h;
> + } else if (pix_mp->num_planes == 2U) {
> + mtk_jpeg_bound_align_image(&align_w,
> + MTK_JPEG_MIN_WIDTH,
> + MTK_JPEG_MAX_WIDTH,
> + 4, &align_h,
> + MTK_JPEG_MIN_HEIGHT,
> + MTK_JPEG_MAX_HEIGHT,
> + 4);
> + pix_mp->plane_fmt[0].bytesperline = align_w;
> + pix_mp->plane_fmt[0].sizeimage =
> + align_w * align_h;
> + pix_mp->plane_fmt[1].bytesperline = align_w;
> + pix_mp->plane_fmt[1].sizeimage =
> + (align_w * align_h) / 2;
> + } else {
> + v4l2_err(&ctx->jpeg->v4l2_dev,
> + "Unsupport num planes = %d\n",
> + pix_mp->num_planes);
> + }
> + goto end;
> + } else {
> + struct v4l2_plane_pix_format *pfmt =
> + &pix_mp->plane_fmt[0];
> +
> + mtk_jpeg_bound_align_image(&pix_mp->width,
> + MTK_JPEG_MIN_WIDTH,
> + MTK_JPEG_MAX_WIDTH, 0,
> + &pix_mp->height,
> + MTK_JPEG_MIN_HEIGHT,
> + MTK_JPEG_MAX_HEIGHT, 0);
> +
> + pfmt->bytesperline = 0;
> + /* Source size must be aligned to 128 */
> + pfmt->sizeimage = mtk_jpeg_align(pfmt->sizeimage, 128);
> + if (pfmt->sizeimage == 0)
> + pfmt->sizeimage = MTK_JPEG_DEFAULT_SIZEIMAGE;
> +
> + goto end;
> + }
> + }

The differences between capture and output are too large IMHO. I would
recommend splitting this into different functions, one for the encoder,
one for the decoder.

>
> + /* type is MTK_JPEG_FMT_TYPE_CAPTURE */
> + if (jpeg->mode == MTK_JPEG_ENC) {
> mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
> MTK_JPEG_MAX_WIDTH, 0,
> &pix_mp->height, MTK_JPEG_MIN_HEIGHT,
> MTK_JPEG_MAX_HEIGHT, 0);
>
> - memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
> - pfmt->bytesperline = 0;
> - /* Source size must be aligned to 128 */
> - pfmt->sizeimage = mtk_jpeg_align(pfmt->sizeimage, 128);
> - if (pfmt->sizeimage == 0)
> - pfmt->sizeimage = MTK_JPEG_DEFAULT_SIZEIMAGE;
> - goto end;
> + if (fmt->fourcc == V4L2_PIX_FMT_JPEG) {
> + pix_mp->plane_fmt[0].bytesperline = 0;
> + pix_mp->plane_fmt[0].sizeimage =
> + mtk_jpeg_align(pix_mp->plane_fmt[0].sizeimage,
> + 128);
> + if (pix_mp->plane_fmt[0].sizeimage == 0)
> + pix_mp->plane_fmt[0].sizeimage =
> + MTK_JPEG_DEFAULT_SIZEIMAGE;
> + }
> + } else {
> + pix_mp->height = clamp(pix_mp->height, MTK_JPEG_MIN_HEIGHT,
> + MTK_JPEG_MAX_HEIGHT);
> + pix_mp->width = clamp(pix_mp->width, MTK_JPEG_MIN_WIDTH,
> + MTK_JPEG_MAX_WIDTH);
> + mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
> + MTK_JPEG_MAX_WIDTH, fmt->h_align,
> + &pix_mp->height,
> + MTK_JPEG_MIN_HEIGHT,
> + MTK_JPEG_MAX_HEIGHT, fmt->v_align);
> +
> + for (i = 0; i < fmt->colplanes; i++) {
> + struct v4l2_plane_pix_format *pfmt =
> + &pix_mp->plane_fmt[i];
> + u32 stride = pix_mp->width * fmt->h_sample[i] / 4;
> + u32 h = pix_mp->height * fmt->v_sample[i] / 4;
> +
> + pfmt->bytesperline = stride;
> + pfmt->sizeimage = stride * h;
> + }
> }
>
> - /* type is MTK_JPEG_FMT_TYPE_CAPTURE */
> - mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
> - MTK_JPEG_MAX_WIDTH, fmt->h_align,
> - &pix_mp->height, MTK_JPEG_MIN_HEIGHT,
> - MTK_JPEG_MAX_HEIGHT, fmt->v_align);
> -
> for (i = 0; i < fmt->colplanes; i++) {
> - struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i];
> - u32 stride = pix_mp->width * fmt->h_sample[i] / 4;
> - u32 h = pix_mp->height * fmt->v_sample[i] / 4;
> -
> + struct v4l2_plane_pix_format *pfmt =
> + &pix_mp->plane_fmt[i];
> memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
> - pfmt->bytesperline = stride;
> - pfmt->sizeimage = stride * h;
> }
> end:
> v4l2_dbg(2, debug, &jpeg->v4l2_dev, "wxh:%ux%u\n",
> @@ -446,9 +639,9 @@ static int mtk_jpeg_subscribe_event(struct v4l2_fh *fh,
> switch (sub->type) {
> case V4L2_EVENT_SOURCE_CHANGE:
> return v4l2_src_change_event_subscribe(fh, sub);
> - default:
> - return -EINVAL;
> }
> +
> + return v4l2_ctrl_subscribe_event(fh, sub);
> }

This appears to be a bug fix. Please put this in a separate patch.

>
> static int mtk_jpeg_g_selection(struct file *file, void *priv,
> @@ -571,6 +764,13 @@ static int mtk_jpeg_queue_setup(struct vb2_queue *q,
> if (!q_data)
> return -EINVAL;
>
> + if (*num_planes) {
> + for (i = 0; i < *num_planes; i++)
> + if (sizes[i] < q_data->sizeimage[i])
> + return -EINVAL;
> + return 0;
> + }
> +
> *num_planes = q_data->fmt->colplanes;
> for (i = 0; i < q_data->fmt->colplanes; i++) {
> sizes[i] = q_data->sizeimage[i];

Also appears to be a bug fix.

> @@ -651,10 +851,92 @@ static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx *ctx,
> param->dec_w, param->dec_h);
> }
>
> +static void mtk_jpeg_set_param(struct mtk_jpeg_ctx *ctx,
> + struct mtk_jpeg_enc_param *param)
> +{
> + struct mtk_jpeg_q_data *q_data_src = &ctx->out_q;
> + struct jpeg_enc_param *jpeg_params = &ctx->jpeg_param;
> + struct mtk_jpeg_dev *jpeg = ctx->jpeg;
> + u32 width_even;
> + u32 is_420;
> + u32 padding_width;
> + u32 padding_height;
> +
> + switch (q_data_src->fmt->fourcc) {
> + case V4L2_PIX_FMT_YUYV:
> + param->enc_format = JPEG_YUV_FORMAT_YUYV;
> + break;
> + case V4L2_PIX_FMT_YVYU:
> + param->enc_format = JPEG_YUV_FORMAT_YVYU;
> + break;
> + case V4L2_PIX_FMT_NV12M:
> + param->enc_format = JPEG_YUV_FORMAT_NV12;
> + break;
> + case V4L2_PIX_FMT_NV21M:
> + param->enc_format = JPEG_YUV_FORMAT_NV12;
> + break;
> + default:
> + v4l2_err(&jpeg->v4l2_dev, "Unsupport fourcc =%d\n",
> + q_data_src->fmt->fourcc);
> + break;
> + }
> + param->enc_w = q_data_src->w;
> + param->enc_h = q_data_src->h;
> +
> + if (jpeg_params->enc_quality >= 97)
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q97;
> + else if (jpeg_params->enc_quality >= 95)
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q95;
> + else if (jpeg_params->enc_quality >= 92)
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q92;
> + else if (jpeg_params->enc_quality >= 90)
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q90;
> + else if (jpeg_params->enc_quality >= 87)
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q87;
> + else if (jpeg_params->enc_quality >= 84)
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q84;
> + else if (jpeg_params->enc_quality >= 80)
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q80;
> + else if (jpeg_params->enc_quality >= 74)
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q74;
> + else if (jpeg_params->enc_quality >= 64)
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q64;
> + else if (jpeg_params->enc_quality >= 60)
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q60;
> + else
> + param->enc_quality = JPEG_ENCODE_QUALITY_Q48;
> +
> + param->enable_exif = jpeg_params->enable_exif;
> + param->restart_interval = jpeg_params->restart_interval;
> +
> + width_even = ((param->enc_w + 1) >> 1) << 1;
> + is_420 = (param->enc_format == JPEG_YUV_FORMAT_NV12 ||
> + param->enc_format == JPEG_YUV_FORMAT_NV12) ? 1 : 0;
> + padding_width = mtk_jpeg_align(param->enc_w, 16);
> + padding_height = mtk_jpeg_align(param->enc_h, is_420 ? 16 : 8);
> + if (!is_420)
> + width_even = width_even << 1;
> +
> + param->img_stride = mtk_jpeg_align(width_even, (is_420 ? 16 : 32));
> + param->mem_stride = mtk_jpeg_align(width_even, (is_420 ? 16 : 32));
> + param->total_encdu =
> + ((padding_width >> 4) * (padding_height >> (is_420 ? 4 : 3)) *
> + (is_420 ? 6 : 4)) - 1;
> +
> + v4l2_dbg(0, 2, &jpeg->v4l2_dev, "fmt %d, w,h %d,%d, enable_exif %d,",
> + "enc_quality %d, restart_interval %d,img_stride %d,",
> + "mem_stride %d,totalEncDu %d\n",
> + param->enc_format, param->enc_w, param->enc_h,
> + param->enable_exif, param->enc_quality,
> + param->restart_interval, param->img_stride,
> + param->mem_stride, param->total_encdu);
> +}
> +
> 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_enc_param *enc_param;
> struct mtk_jpeg_dev *jpeg = ctx->jpeg;
> struct mtk_jpeg_src_buf *jpeg_src_buf;
> bool header_valid;
> @@ -666,29 +948,45 @@ static void mtk_jpeg_buf_queue(struct vb2_buffer *vb)
> 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);
> + if (jpeg->mode == MTK_JPEG_ENC) {
> + enc_param = &jpeg_src_buf->enc_param;
> + memset(enc_param, 0, sizeof(*enc_param));
> + mtk_jpeg_set_param(ctx, enc_param);
> + if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) {
> + v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Got eos");
> + goto end;
> + }
> + if (ctx->state == MTK_JPEG_INIT)
> + ctx->state = MTK_JPEG_RUNNING;
> + } else {
> + 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;
> + }
>
> - 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;
> + if (ctx->state == MTK_JPEG_INIT) {
> + struct vb2_queue *dst_vq;
> +
> + 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));
> @@ -731,16 +1029,16 @@ static void mtk_jpeg_stop_streaming(struct vb2_queue *q)
> * subsampling. Update capture queue when the stream is off.
> */
> if (ctx->state == MTK_JPEG_SOURCE_CHANGE &&
> - !V4L2_TYPE_IS_OUTPUT(q->type)) {
> + !V4L2_TYPE_IS_OUTPUT(q->type) &&
> + ctx->jpeg->mode == MTK_JPEG_DEC) {
> 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->vb2_buf);
> mtk_jpeg_set_queue_data(ctx, &src_buf->dec_param);
> ctx->state = MTK_JPEG_RUNNING;
> - } else if (V4L2_TYPE_IS_OUTPUT(q->type)) {
> + } 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(vb, VB2_BUF_STATE_ERROR);
> @@ -795,6 +1093,28 @@ static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx,
> return 0;
> }
>
> +static void mtk_jpeg_set_enc_dst(struct mtk_jpeg_ctx *ctx,
> + struct vb2_buffer *dst_buf,
> + struct mtk_jpeg_enc_bs *bs)
> +{
> + bs->dma_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0) &
> + (~JPEG_ENC_DST_ADDR_OFFSET_MASK);
> + bs->dma_addr_offset = 0;
> + bs->dma_addr_offsetmask = bs->dma_addr & JPEG_ENC_DST_ADDR_OFFSET_MASK;
> + bs->size = mtk_jpeg_align(vb2_plane_size(dst_buf, 0), 128);
> +}
> +
> +static void mtk_jpeg_set_enc_src(struct mtk_jpeg_ctx *ctx,
> + struct vb2_buffer *src_buf,
> + struct mtk_jpeg_enc_fb *fb)
> +{
> + int i;
> +
> + for (i = 0; i < src_buf->num_planes; i++)
> + fb->fb_addr[i].dma_addr =
> + vb2_dma_contig_plane_dma_addr(src_buf, i);
> +}
> +
> static void mtk_jpeg_device_run(void *priv)
> {
> struct mtk_jpeg_ctx *ctx = priv;
> @@ -805,6 +1125,8 @@ static void mtk_jpeg_device_run(void *priv)
> struct mtk_jpeg_src_buf *jpeg_src_buf;
> struct mtk_jpeg_bs bs;
> struct mtk_jpeg_fb fb;
> + struct mtk_jpeg_enc_bs enc_bs;
> + struct mtk_jpeg_enc_fb enc_fb;
> int i;
>
> src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
> @@ -815,30 +1137,45 @@ static void mtk_jpeg_device_run(void *priv)
> for (i = 0; i < dst_buf->vb2_buf.num_planes; i++)
> vb2_set_plane_payload(&dst_buf->vb2_buf, i, 0);
> buf_state = VB2_BUF_STATE_DONE;
> - goto dec_end;
> + goto device_run_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;
> - }
> + if (jpeg->mode == MTK_JPEG_ENC) {
> + mtk_jpeg_set_enc_dst(ctx, &dst_buf->vb2_buf, &enc_bs);
> + mtk_jpeg_set_enc_src(ctx, &src_buf->vb2_buf, &enc_fb);
> +
> + spin_lock_irqsave(&jpeg->hw_lock, flags);
> + mtk_jpeg_enc_reset(jpeg->reg_base);
> + mtk_jpeg_enc_set_config(jpeg->reg_base,
> + &jpeg_src_buf->enc_param, &enc_bs,
> + &enc_fb);
> +
> + mtk_jpeg_enc_start(jpeg->reg_base);
> + } else {
> + 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->vb2_buf, &bs);
> - if (mtk_jpeg_set_dec_dst(ctx, &jpeg_src_buf->dec_param, &dst_buf->vb2_buf, &fb))
> - goto dec_end;
> + mtk_jpeg_set_dec_src(ctx, &src_buf->vb2_buf, &bs);
> + if (mtk_jpeg_set_dec_dst(ctx, &jpeg_src_buf->dec_param,
> + &dst_buf->vb2_buf, &fb))
> + goto device_run_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);
> + spin_lock_irqsave(&jpeg->hw_lock, flags);
> + mtk_jpeg_dec_reset(jpeg->reg_base);
> + mtk_jpeg_dec_set_config(jpeg->reg_base,
> + &jpeg_src_buf->dec_param, &bs, &fb);
>
> - mtk_jpeg_dec_start(jpeg->dec_reg_base);
> + mtk_jpeg_dec_start(jpeg->reg_base);
> + }
> spin_unlock_irqrestore(&jpeg->hw_lock, flags);
> return;
>
> -dec_end:
> +device_run_end:
> v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
> v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
> v4l2_m2m_buf_done(src_buf, buf_state);
> @@ -898,30 +1235,30 @@ static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg)
> 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);
> + if (jpeg->mode == MTK_JPEG_DEC)
> + clk_prepare_enable(jpeg->clk_jpeg_smi);
> + clk_prepare_enable(jpeg->clk_jpeg);
> }
>
> static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg)
> {
> - clk_disable_unprepare(jpeg->clk_jdec);
> - clk_disable_unprepare(jpeg->clk_jdec_smi);
> + clk_disable_unprepare(jpeg->clk_jpeg);
> + if (jpeg->mode == MTK_JPEG_DEC)
> + clk_disable_unprepare(jpeg->clk_jpeg_smi);
> mtk_smi_larb_put(jpeg->larb);
> }
>
> -static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
> +static irqreturn_t mtk_jpeg_irq(int irq, void *priv)
> {
> struct mtk_jpeg_dev *jpeg = priv;
> struct mtk_jpeg_ctx *ctx;
> struct vb2_v4l2_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;
> + u32 irq_ret;
> + u32 ret, result_size;
> 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");
> @@ -932,21 +1269,42 @@ static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
> dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
> jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf);
>
> - if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
> - mtk_jpeg_dec_reset(jpeg->dec_reg_base);
> + if (jpeg->mode == MTK_JPEG_ENC) {
> + ret = mtk_jpeg_enc_get_int_status(jpeg->reg_base);
> + irq_ret = mtk_jpeg_enc_enum_result(jpeg->reg_base, ret,
> + &result_size);
>
> - if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
> - dev_err(jpeg->dev, "decode failed\n");
> - goto dec_end;
> - }
> + if (irq_ret >= MTK_JPEG_ENC_RESULT_STALL)
> + mtk_jpeg_enc_reset(jpeg->reg_base);
> +
> + if (irq_ret != MTK_JPEG_ENC_RESULT_DONE) {
> + dev_err(jpeg->dev, "encode failed\n");
> + goto irq_end;
> + }
>
> - for (i = 0; i < dst_buf->vb2_buf.num_planes; i++)
> - vb2_set_plane_payload(&dst_buf->vb2_buf, i,
> - jpeg_src_buf->dec_param.comp_size[i]);
> + vb2_set_plane_payload(&dst_buf->vb2_buf, 0,
> + result_size);
> + } else {
> + ret = mtk_jpeg_dec_get_int_status(jpeg->reg_base);
> + irq_ret = mtk_jpeg_dec_enum_result(ret);
> +
> + if (irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
> + mtk_jpeg_dec_reset(jpeg->reg_base);
> +
> + if (irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
> + dev_err(jpeg->dev, "decode failed\n");
> + goto irq_end;
> + }
> +
> + for (i = 0; i < dst_buf->vb2_buf.num_planes; i++)
> + vb2_set_plane_payload
> + (&dst_buf->vb2_buf, i,
> + jpeg_src_buf->dec_param.comp_size[i]);
> + }
>
> buf_state = VB2_BUF_STATE_DONE;
>
> -dec_end:
> +irq_end:
> v4l2_m2m_buf_done(src_buf, buf_state);
> v4l2_m2m_buf_done(dst_buf, buf_state);
> v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
> @@ -956,32 +1314,72 @@ static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
> static void mtk_jpeg_set_default_params(struct mtk_jpeg_ctx *ctx)
> {
> struct mtk_jpeg_q_data *q = &ctx->out_q;
> - int i;
> + int i, align_w, align_h;
> +
> + ctx->fh.ctrl_handler = &ctx->ctrl_hdl;
>
> 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,
> + if (ctx->jpeg->mode == MTK_JPEG_ENC) {
> + q->w = MTK_JPEG_MIN_WIDTH;
> + q->h = MTK_JPEG_MIN_HEIGHT;
> +
> + q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_YUYV,
> 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;
> +
> + align_w = q->w;
> + align_h = q->h;
> + align_w = round_up(align_w, 2);
> + align_w = align_w << 1;
> + v4l_bound_align_image(&align_w,
> + MTK_JPEG_MIN_WIDTH,
> + MTK_JPEG_MAX_WIDTH, 5,
> + &align_h,
> + MTK_JPEG_MIN_HEIGHT,
> + MTK_JPEG_MAX_HEIGHT, 3, 0);
> +
> + if (align_w < MTK_JPEG_MIN_WIDTH &&
> + (align_w + 32) <= MTK_JPEG_MAX_WIDTH)
> + align_w += 32;
> + if (align_h < MTK_JPEG_MIN_HEIGHT &&
> + (align_h + 8) <= MTK_JPEG_MAX_HEIGHT)
> + align_h += 8;
> +
> + q->sizeimage[0] = align_w * align_h;
> + q->bytesperline[0] = align_w;
> + } else {
> + 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,
> + if (ctx->jpeg->mode == MTK_JPEG_ENC) {
> + q->w = MTK_JPEG_MIN_WIDTH;
> + q->h = MTK_JPEG_MIN_HEIGHT;
> + q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG,
> + MTK_JPEG_FMT_TYPE_CAPTURE);
> + q->bytesperline[0] = 0;
> + q->sizeimage[0] = MTK_JPEG_DEFAULT_SIZEIMAGE;
> + } else {
> + 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;
> + 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;
> + 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;
> + q->bytesperline[i] = stride;
> + q->sizeimage[i] = stride * h;
> + }
> }
> }

This is another function were there appears to be little overlap between
encoder and decoder. A candidate to split up?

>
> @@ -1013,6 +1411,13 @@ static int mtk_jpeg_open(struct file *file)
> goto error;
> }
>
> + ret = mtk_jpeg_ctrls_setup(ctx);
> + if (ret) {
> + v4l2_err(&jpeg->v4l2_dev, "Failed to setup controls() (%d)\n",
> + ret);
> + goto error;
> + }
> +
> mtk_jpeg_set_default_params(ctx);
> mutex_unlock(&jpeg->lock);
> return 0;
> @@ -1033,6 +1438,7 @@ static int mtk_jpeg_release(struct file *file)
>
> mutex_lock(&jpeg->lock);
> v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
> + v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
> v4l2_fh_del(&ctx->fh);
> v4l2_fh_exit(&ctx->fh);
> kfree(ctx);
> @@ -1057,6 +1463,7 @@ static int mtk_jpeg_clk_init(struct mtk_jpeg_dev *jpeg)
> 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);
> @@ -1066,19 +1473,24 @@ static int mtk_jpeg_clk_init(struct mtk_jpeg_dev *jpeg)
>
> jpeg->larb = &pdev->dev;
>
> - jpeg->clk_jdec = devm_clk_get(jpeg->dev, "jpgdec");
> - if (IS_ERR(jpeg->clk_jdec))
> - return PTR_ERR(jpeg->clk_jdec);
> + if (jpeg->mode == MTK_JPEG_ENC) {
> + jpeg->clk_jpeg = devm_clk_get(jpeg->dev, "jpgenc");
> + return PTR_ERR_OR_ZERO(jpeg->clk_jpeg);
> + }
> +
> + jpeg->clk_jpeg = devm_clk_get(jpeg->dev, "jpgdec");
> + if (IS_ERR(jpeg->clk_jpeg))
> + return PTR_ERR(jpeg->clk_jpeg);
>
> - jpeg->clk_jdec_smi = devm_clk_get(jpeg->dev, "jpgdec-smi");
> - return PTR_ERR_OR_ZERO(jpeg->clk_jdec_smi);
> + jpeg->clk_jpeg_smi = devm_clk_get(jpeg->dev, "jpgdec-smi");
> + return PTR_ERR_OR_ZERO(jpeg->clk_jpeg_smi);
> }
>
> static int mtk_jpeg_probe(struct platform_device *pdev)
> {
> struct mtk_jpeg_dev *jpeg;
> struct resource *res;
> - int dec_irq;
> + int jpeg_irq;
> int ret;
>
> jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL);
> @@ -1088,28 +1500,26 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
> mutex_init(&jpeg->lock);
> spin_lock_init(&jpeg->hw_lock);
> jpeg->dev = &pdev->dev;
> + jpeg->mode = (enum mtk_jpeg_mode)of_device_get_match_data(jpeg->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);
> + jpeg->reg_base = devm_ioremap_resource(&pdev->dev, res);
> + if (IS_ERR(jpeg->reg_base)) {
> + ret = PTR_ERR(jpeg->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;
> + jpeg_irq = platform_get_irq(pdev, 0);
> + if (jpeg_irq < 0) {
> + dev_err(&pdev->dev, "Failed to get jpeg_irq %d.\n", jpeg_irq);
> + return jpeg_irq;
> }
>
> - ret = devm_request_irq(&pdev->dev, dec_irq, mtk_jpeg_dec_irq, 0,
> + ret = devm_request_irq(&pdev->dev, jpeg_irq, mtk_jpeg_irq, 0,
> pdev->name, jpeg);
> if (ret) {
> - dev_err(&pdev->dev, "Failed to request dec_irq %d (%d)\n",
> - dec_irq, ret);
> - ret = -EINVAL;
> + dev_err(&pdev->dev, "Failed to request jpeg_irq %d (%d)\n",
> + jpeg_irq, ret);
> goto err_req_irq;
> }
>
> @@ -1133,33 +1543,35 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
> goto err_m2m_init;
> }
>
> - jpeg->dec_vdev = video_device_alloc();
> - if (!jpeg->dec_vdev) {
> + jpeg->vfd_jpeg = video_device_alloc();
> + if (!jpeg->vfd_jpeg) {
> ret = -ENOMEM;
> - goto err_dec_vdev_alloc;
> + goto err_vfd_jpeg_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 |
> + snprintf(jpeg->vfd_jpeg->name, sizeof(jpeg->vfd_jpeg->name),
> + "%s-%s", MTK_JPEG_NAME,
> + jpeg->mode == MTK_JPEG_ENC ? "enc" : "dec");
> + jpeg->vfd_jpeg->fops = &mtk_jpeg_fops;
> + jpeg->vfd_jpeg->ioctl_ops = &mtk_jpeg_ioctl_ops;
> + jpeg->vfd_jpeg->minor = -1;
> + jpeg->vfd_jpeg->release = video_device_release;
> + jpeg->vfd_jpeg->lock = &jpeg->lock;
> + jpeg->vfd_jpeg->v4l2_dev = &jpeg->v4l2_dev;
> + jpeg->vfd_jpeg->vfl_dir = VFL_DIR_M2M;
> + jpeg->vfd_jpeg->device_caps = V4L2_CAP_STREAMING |
> V4L2_CAP_VIDEO_M2M_MPLANE;
>
> - ret = video_register_device(jpeg->dec_vdev, VFL_TYPE_GRABBER, 3);
> + ret = video_register_device(jpeg->vfd_jpeg, VFL_TYPE_GRABBER, -1);
> if (ret) {
> v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");
> - goto err_dec_vdev_register;
> + goto err_vfd_jpeg_register;
> }
>
> - video_set_drvdata(jpeg->dec_vdev, jpeg);
> + video_set_drvdata(jpeg->vfd_jpeg, 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);
> + "jpeg device %d registered as /dev/video%d (%d,%d)\n",
> + jpeg->mode, jpeg->vfd_jpeg->num, VIDEO_MAJOR,
> + jpeg->vfd_jpeg->minor);
>
> platform_set_drvdata(pdev, jpeg);
>
> @@ -1167,10 +1579,10 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
>
> return 0;
>
> -err_dec_vdev_register:
> - video_device_release(jpeg->dec_vdev);
> +err_vfd_jpeg_register:
> + video_device_release(jpeg->vfd_jpeg);
>
> -err_dec_vdev_alloc:
> +err_vfd_jpeg_alloc:
> v4l2_m2m_release(jpeg->m2m_dev);
>
> err_m2m_init:
> @@ -1190,8 +1602,8 @@ 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);
> + video_unregister_device(jpeg->vfd_jpeg);
> + video_device_release(jpeg->vfd_jpeg);
> v4l2_m2m_release(jpeg->m2m_dev);
> v4l2_device_unregister(&jpeg->v4l2_dev);
>
> @@ -1202,7 +1614,11 @@ 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);
> + if (jpeg->mode == MTK_JPEG_ENC)
> + mtk_jpeg_enc_reset(jpeg->reg_base);
> + else
> + mtk_jpeg_dec_reset(jpeg->reg_base);
> +
> mtk_jpeg_clk_off(jpeg);
>
> return 0;
> @@ -1213,7 +1629,10 @@ 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);
> + if (jpeg->mode == MTK_JPEG_ENC)
> + mtk_jpeg_enc_reset(jpeg->reg_base);
> + else
> + mtk_jpeg_dec_reset(jpeg->reg_base);
>
> return 0;
> }
> @@ -1249,11 +1668,15 @@ static const struct dev_pm_ops mtk_jpeg_pm_ops = {
> static const struct of_device_id mtk_jpeg_match[] = {
> {
> .compatible = "mediatek,mt8173-jpgdec",
> - .data = NULL,
> + .data = (void *)MTK_JPEG_DEC,
> },
> {
> .compatible = "mediatek,mt2701-jpgdec",
> - .data = NULL,
> + .data = (void *)MTK_JPEG_DEC,
> + },
> + {
> + .compatible = "mediatek,mtk-jpgenc",
> + .data = (void *)MTK_JPEG_ENC,
> },
> {},
> };


The g/s_selection ioctls are unchanged: that can't be right.

The decoder supports composing, but that's not valid for an encoder:
I expect cropping support for an encoder.

Regards,

Hans

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