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OpenCloudOS-Kernel/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c

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/*
* linux/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
*
* Copyright (C) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
* Kamil Debski, <k.debski@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/clk.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/workqueue.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-event.h>
#include <media/videobuf2-v4l2.h>
#include "s5p_mfc_common.h"
#include "s5p_mfc_ctrl.h"
#include "s5p_mfc_debug.h"
#include "s5p_mfc_dec.h"
#include "s5p_mfc_intr.h"
#include "s5p_mfc_opr.h"
#include "s5p_mfc_pm.h"
static struct s5p_mfc_fmt formats[] = {
{
.name = "4:2:0 2 Planes 16x16 Tiles",
.fourcc = V4L2_PIX_FMT_NV12MT_16X16,
.codec_mode = S5P_MFC_CODEC_NONE,
.type = MFC_FMT_RAW,
.num_planes = 2,
.versions = MFC_V6_BIT | MFC_V7_BIT,
},
{
.name = "4:2:0 2 Planes 64x32 Tiles",
.fourcc = V4L2_PIX_FMT_NV12MT,
.codec_mode = S5P_MFC_CODEC_NONE,
.type = MFC_FMT_RAW,
.num_planes = 2,
.versions = MFC_V5_BIT,
},
{
.name = "4:2:0 2 Planes Y/CbCr",
.fourcc = V4L2_PIX_FMT_NV12M,
.codec_mode = S5P_MFC_CODEC_NONE,
.type = MFC_FMT_RAW,
.num_planes = 2,
.versions = MFC_V6PLUS_BITS,
},
{
.name = "4:2:0 2 Planes Y/CrCb",
.fourcc = V4L2_PIX_FMT_NV21M,
.codec_mode = S5P_MFC_CODEC_NONE,
.type = MFC_FMT_RAW,
.num_planes = 2,
.versions = MFC_V6PLUS_BITS,
},
{
.name = "H264 Encoded Stream",
.fourcc = V4L2_PIX_FMT_H264,
.codec_mode = S5P_MFC_CODEC_H264_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V5PLUS_BITS,
},
{
.name = "H264/MVC Encoded Stream",
.fourcc = V4L2_PIX_FMT_H264_MVC,
.codec_mode = S5P_MFC_CODEC_H264_MVC_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V6PLUS_BITS,
},
{
.name = "H263 Encoded Stream",
.fourcc = V4L2_PIX_FMT_H263,
.codec_mode = S5P_MFC_CODEC_H263_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V5PLUS_BITS,
},
{
.name = "MPEG1 Encoded Stream",
.fourcc = V4L2_PIX_FMT_MPEG1,
.codec_mode = S5P_MFC_CODEC_MPEG2_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V5PLUS_BITS,
},
{
.name = "MPEG2 Encoded Stream",
.fourcc = V4L2_PIX_FMT_MPEG2,
.codec_mode = S5P_MFC_CODEC_MPEG2_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V5PLUS_BITS,
},
{
.name = "MPEG4 Encoded Stream",
.fourcc = V4L2_PIX_FMT_MPEG4,
.codec_mode = S5P_MFC_CODEC_MPEG4_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V5PLUS_BITS,
},
{
.name = "XviD Encoded Stream",
.fourcc = V4L2_PIX_FMT_XVID,
.codec_mode = S5P_MFC_CODEC_MPEG4_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V5PLUS_BITS,
},
{
.name = "VC1 Encoded Stream",
.fourcc = V4L2_PIX_FMT_VC1_ANNEX_G,
.codec_mode = S5P_MFC_CODEC_VC1_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V5PLUS_BITS,
},
{
.name = "VC1 RCV Encoded Stream",
.fourcc = V4L2_PIX_FMT_VC1_ANNEX_L,
.codec_mode = S5P_MFC_CODEC_VC1RCV_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V5PLUS_BITS,
},
{
.name = "VP8 Encoded Stream",
.fourcc = V4L2_PIX_FMT_VP8,
.codec_mode = S5P_MFC_CODEC_VP8_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V6PLUS_BITS,
},
{
.fourcc = V4L2_PIX_FMT_HEVC,
.codec_mode = S5P_FIMV_CODEC_HEVC_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V10_BIT,
},
{
.fourcc = V4L2_PIX_FMT_VP9,
.codec_mode = S5P_FIMV_CODEC_VP9_DEC,
.type = MFC_FMT_DEC,
.num_planes = 1,
.versions = MFC_V10_BIT,
},
};
#define NUM_FORMATS ARRAY_SIZE(formats)
/* Find selected format description */
static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
{
unsigned int i;
for (i = 0; i < NUM_FORMATS; i++) {
if (formats[i].fourcc == f->fmt.pix_mp.pixelformat &&
formats[i].type == t)
return &formats[i];
}
return NULL;
}
static struct mfc_control controls[] = {
{
.id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "H264 Display Delay",
.minimum = 0,
.maximum = 16383,
.step = 1,
.default_value = 0,
},
{
.id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "H264 Display Delay Enable",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0,
},
{
.id = V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Mpeg4 Loop Filter Enable",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0,
},
{
.id = V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Slice Interface Enable",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0,
},
{
.id = V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Minimum number of cap bufs",
.minimum = 1,
.maximum = 32,
.step = 1,
.default_value = 1,
.is_volatile = 1,
},
};
#define NUM_CTRLS ARRAY_SIZE(controls)
/* Check whether a context should be run on hardware */
static int s5p_mfc_ctx_ready(struct s5p_mfc_ctx *ctx)
{
/* Context is to parse header */
if (ctx->src_queue_cnt >= 1 && ctx->state == MFCINST_GOT_INST)
return 1;
/* Context is to decode a frame */
if (ctx->src_queue_cnt >= 1 &&
ctx->state == MFCINST_RUNNING &&
ctx->dst_queue_cnt >= ctx->pb_count)
return 1;
/* Context is to return last frame */
if (ctx->state == MFCINST_FINISHING &&
ctx->dst_queue_cnt >= ctx->pb_count)
return 1;
/* Context is to set buffers */
if (ctx->src_queue_cnt >= 1 &&
ctx->state == MFCINST_HEAD_PARSED &&
ctx->capture_state == QUEUE_BUFS_MMAPED)
return 1;
/* Resolution change */
if ((ctx->state == MFCINST_RES_CHANGE_INIT ||
ctx->state == MFCINST_RES_CHANGE_FLUSH) &&
ctx->dst_queue_cnt >= ctx->pb_count)
return 1;
if (ctx->state == MFCINST_RES_CHANGE_END &&
ctx->src_queue_cnt >= 1)
return 1;
mfc_debug(2, "ctx is not ready\n");
return 0;
}
static const struct s5p_mfc_codec_ops decoder_codec_ops = {
.pre_seq_start = NULL,
.post_seq_start = NULL,
.pre_frame_start = NULL,
.post_frame_start = NULL,
};
/* Query capabilities of the device */
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct s5p_mfc_dev *dev = video_drvdata(file);
strncpy(cap->driver, S5P_MFC_NAME, sizeof(cap->driver) - 1);
strncpy(cap->card, dev->vfd_dec->name, sizeof(cap->card) - 1);
snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
dev_name(&dev->plat_dev->dev));
/*
* This is only a mem-to-mem video device. The capture and output
* device capability flags are left only for backward compatibility
* and are scheduled for removal.
*/
cap->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
return 0;
}
/* Enumerate format */
static int vidioc_enum_fmt(struct file *file, struct v4l2_fmtdesc *f,
bool out)
{
struct s5p_mfc_dev *dev = video_drvdata(file);
struct s5p_mfc_fmt *fmt;
int i, j = 0;
for (i = 0; i < ARRAY_SIZE(formats); ++i) {
if (out && formats[i].type != MFC_FMT_DEC)
continue;
else if (!out && formats[i].type != MFC_FMT_RAW)
continue;
else if ((dev->variant->version_bit & formats[i].versions) == 0)
continue;
if (j == f->index)
break;
++j;
}
if (i == ARRAY_SIZE(formats))
return -EINVAL;
fmt = &formats[i];
strlcpy(f->description, fmt->name, sizeof(f->description));
f->pixelformat = fmt->fourcc;
return 0;
}
static int vidioc_enum_fmt_vid_cap_mplane(struct file *file, void *pirv,
struct v4l2_fmtdesc *f)
{
return vidioc_enum_fmt(file, f, false);
}
static int vidioc_enum_fmt_vid_out_mplane(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
return vidioc_enum_fmt(file, f, true);
}
/* Get format */
static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
struct v4l2_pix_format_mplane *pix_mp;
mfc_debug_enter();
pix_mp = &f->fmt.pix_mp;
if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
(ctx->state == MFCINST_GOT_INST || ctx->state ==
MFCINST_RES_CHANGE_END)) {
/* If the MFC is parsing the header,
* so wait until it is finished */
s5p_mfc_wait_for_done_ctx(ctx, S5P_MFC_R2H_CMD_SEQ_DONE_RET,
0);
}
if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
ctx->state >= MFCINST_HEAD_PARSED &&
ctx->state < MFCINST_ABORT) {
/* This is run on CAPTURE (decode output) */
/* Width and height are set to the dimensions
of the movie, the buffer is bigger and
further processing stages should crop to this
rectangle. */
pix_mp->width = ctx->buf_width;
pix_mp->height = ctx->buf_height;
pix_mp->field = V4L2_FIELD_NONE;
pix_mp->num_planes = 2;
/* Set pixelformat to the format in which MFC
outputs the decoded frame */
pix_mp->pixelformat = ctx->dst_fmt->fourcc;
pix_mp->plane_fmt[0].bytesperline = ctx->buf_width;
pix_mp->plane_fmt[0].sizeimage = ctx->luma_size;
pix_mp->plane_fmt[1].bytesperline = ctx->buf_width;
pix_mp->plane_fmt[1].sizeimage = ctx->chroma_size;
} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
/* This is run on OUTPUT
The buffer contains compressed image
so width and height have no meaning */
pix_mp->width = 0;
pix_mp->height = 0;
pix_mp->field = V4L2_FIELD_NONE;
pix_mp->plane_fmt[0].bytesperline = ctx->dec_src_buf_size;
pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size;
pix_mp->pixelformat = ctx->src_fmt->fourcc;
pix_mp->num_planes = ctx->src_fmt->num_planes;
} else {
mfc_err("Format could not be read\n");
mfc_debug(2, "%s-- with error\n", __func__);
return -EINVAL;
}
mfc_debug_leave();
return 0;
}
/* Try format */
static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
{
struct s5p_mfc_dev *dev = video_drvdata(file);
struct s5p_mfc_fmt *fmt;
mfc_debug(2, "Type is %d\n", f->type);
if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
fmt = find_format(f, MFC_FMT_DEC);
if (!fmt) {
mfc_err("Unsupported format for source.\n");
return -EINVAL;
}
if (fmt->codec_mode == S5P_FIMV_CODEC_NONE) {
mfc_err("Unknown codec\n");
return -EINVAL;
}
if ((dev->variant->version_bit & fmt->versions) == 0) {
mfc_err("Unsupported format by this MFC version.\n");
return -EINVAL;
}
} else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
fmt = find_format(f, MFC_FMT_RAW);
if (!fmt) {
mfc_err("Unsupported format for destination.\n");
return -EINVAL;
}
if ((dev->variant->version_bit & fmt->versions) == 0) {
mfc_err("Unsupported format by this MFC version.\n");
return -EINVAL;
}
}
return 0;
}
/* Set format */
static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
{
struct s5p_mfc_dev *dev = video_drvdata(file);
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
int ret = 0;
struct v4l2_pix_format_mplane *pix_mp;
struct s5p_mfc_buf_size *buf_size = dev->variant->buf_size;
mfc_debug_enter();
ret = vidioc_try_fmt(file, priv, f);
pix_mp = &f->fmt.pix_mp;
if (ret)
return ret;
if (vb2_is_streaming(&ctx->vq_src) || vb2_is_streaming(&ctx->vq_dst)) {
v4l2_err(&dev->v4l2_dev, "%s queue busy\n", __func__);
ret = -EBUSY;
goto out;
}
if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
/* dst_fmt is validated by call to vidioc_try_fmt */
ctx->dst_fmt = find_format(f, MFC_FMT_RAW);
ret = 0;
goto out;
} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
/* src_fmt is validated by call to vidioc_try_fmt */
ctx->src_fmt = find_format(f, MFC_FMT_DEC);
ctx->codec_mode = ctx->src_fmt->codec_mode;
mfc_debug(2, "The codec number is: %d\n", ctx->codec_mode);
pix_mp->height = 0;
pix_mp->width = 0;
if (pix_mp->plane_fmt[0].sizeimage == 0)
pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size =
DEF_CPB_SIZE;
else if (pix_mp->plane_fmt[0].sizeimage > buf_size->cpb)
ctx->dec_src_buf_size = buf_size->cpb;
else
ctx->dec_src_buf_size = pix_mp->plane_fmt[0].sizeimage;
pix_mp->plane_fmt[0].bytesperline = 0;
ctx->state = MFCINST_INIT;
ret = 0;
goto out;
} else {
mfc_err("Wrong type error for S_FMT : %d", f->type);
ret = -EINVAL;
goto out;
}
out:
mfc_debug_leave();
return ret;
}
static int reqbufs_output(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
struct v4l2_requestbuffers *reqbufs)
{
int ret = 0;
s5p_mfc_clock_on();
if (reqbufs->count == 0) {
mfc_debug(2, "Freeing buffers\n");
ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
if (ret)
goto out;
ctx->src_bufs_cnt = 0;
ctx->output_state = QUEUE_FREE;
} else if (ctx->output_state == QUEUE_FREE) {
/* Can only request buffers when we have a valid format set. */
WARN_ON(ctx->src_bufs_cnt != 0);
if (ctx->state != MFCINST_INIT) {
mfc_err("Reqbufs called in an invalid state\n");
ret = -EINVAL;
goto out;
}
mfc_debug(2, "Allocating %d buffers for OUTPUT queue\n",
reqbufs->count);
ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
if (ret)
goto out;
ret = s5p_mfc_open_mfc_inst(dev, ctx);
if (ret) {
reqbufs->count = 0;
vb2_reqbufs(&ctx->vq_src, reqbufs);
goto out;
}
ctx->output_state = QUEUE_BUFS_REQUESTED;
} else {
mfc_err("Buffers have already been requested\n");
ret = -EINVAL;
}
out:
s5p_mfc_clock_off();
if (ret)
mfc_err("Failed allocating buffers for OUTPUT queue\n");
return ret;
}
static int reqbufs_capture(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
struct v4l2_requestbuffers *reqbufs)
{
int ret = 0;
s5p_mfc_clock_on();
if (reqbufs->count == 0) {
mfc_debug(2, "Freeing buffers\n");
ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
if (ret)
goto out;
s5p_mfc_hw_call(dev->mfc_ops, release_codec_buffers, ctx);
ctx->dst_bufs_cnt = 0;
} else if (ctx->capture_state == QUEUE_FREE) {
WARN_ON(ctx->dst_bufs_cnt != 0);
mfc_debug(2, "Allocating %d buffers for CAPTURE queue\n",
reqbufs->count);
ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
if (ret)
goto out;
ctx->capture_state = QUEUE_BUFS_REQUESTED;
ctx->total_dpb_count = reqbufs->count;
ret = s5p_mfc_hw_call(dev->mfc_ops, alloc_codec_buffers, ctx);
if (ret) {
mfc_err("Failed to allocate decoding buffers\n");
reqbufs->count = 0;
vb2_reqbufs(&ctx->vq_dst, reqbufs);
ret = -ENOMEM;
ctx->capture_state = QUEUE_FREE;
goto out;
}
WARN_ON(ctx->dst_bufs_cnt != ctx->total_dpb_count);
ctx->capture_state = QUEUE_BUFS_MMAPED;
if (s5p_mfc_ctx_ready(ctx))
set_work_bit_irqsave(ctx);
s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
s5p_mfc_wait_for_done_ctx(ctx, S5P_MFC_R2H_CMD_INIT_BUFFERS_RET,
0);
} else {
mfc_err("Buffers have already been requested\n");
ret = -EINVAL;
}
out:
s5p_mfc_clock_off();
if (ret)
mfc_err("Failed allocating buffers for CAPTURE queue\n");
return ret;
}
/* Request buffers */
static int vidioc_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *reqbufs)
{
struct s5p_mfc_dev *dev = video_drvdata(file);
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
if (reqbufs->memory != V4L2_MEMORY_MMAP) {
mfc_debug(2, "Only V4L2_MEMORY_MMAP is supported\n");
return -EINVAL;
}
if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
return reqbufs_output(dev, ctx, reqbufs);
} else if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
return reqbufs_capture(dev, ctx, reqbufs);
} else {
mfc_err("Invalid type requested\n");
return -EINVAL;
}
}
/* Query buffer */
static int vidioc_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
int ret;
int i;
if (buf->memory != V4L2_MEMORY_MMAP) {
mfc_err("Only mmaped buffers can be used\n");
return -EINVAL;
}
mfc_debug(2, "State: %d, buf->type: %d\n", ctx->state, buf->type);
if (ctx->state == MFCINST_GOT_INST &&
buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
ret = vb2_querybuf(&ctx->vq_src, buf);
} else if (ctx->state == MFCINST_RUNNING &&
buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
ret = vb2_querybuf(&ctx->vq_dst, buf);
for (i = 0; i < buf->length; i++)
buf->m.planes[i].m.mem_offset += DST_QUEUE_OFF_BASE;
} else {
mfc_err("vidioc_querybuf called in an inappropriate state\n");
ret = -EINVAL;
}
mfc_debug_leave();
return ret;
}
/* Queue a buffer */
static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
if (ctx->state == MFCINST_ERROR) {
mfc_err("Call on QBUF after unrecoverable error\n");
return -EIO;
}
if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
return vb2_qbuf(&ctx->vq_src, buf);
else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
return vb2_qbuf(&ctx->vq_dst, buf);
return -EINVAL;
}
/* Dequeue a buffer */
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
const struct v4l2_event ev = {
.type = V4L2_EVENT_EOS
};
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
int ret;
if (ctx->state == MFCINST_ERROR) {
mfc_err_limited("Call on DQBUF after unrecoverable error\n");
return -EIO;
}
switch (buf->type) {
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
return vb2_dqbuf(&ctx->vq_src, buf, file->f_flags & O_NONBLOCK);
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
ret = vb2_dqbuf(&ctx->vq_dst, buf, file->f_flags & O_NONBLOCK);
if (ret)
return ret;
if (ctx->state == MFCINST_FINISHED &&
(ctx->dst_bufs[buf->index].flags & MFC_BUF_FLAG_EOS))
v4l2_event_queue_fh(&ctx->fh, &ev);
return 0;
default:
return -EINVAL;
}
}
/* Export DMA buffer */
static int vidioc_expbuf(struct file *file, void *priv,
struct v4l2_exportbuffer *eb)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
if (eb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
return vb2_expbuf(&ctx->vq_src, eb);
if (eb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
return vb2_expbuf(&ctx->vq_dst, eb);
return -EINVAL;
}
/* Stream on */
static int vidioc_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
int ret = -EINVAL;
mfc_debug_enter();
if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
ret = vb2_streamon(&ctx->vq_src, type);
else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
ret = vb2_streamon(&ctx->vq_dst, type);
mfc_debug_leave();
return ret;
}
/* Stream off, which equals to a pause */
static int vidioc_streamoff(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
return vb2_streamoff(&ctx->vq_src, type);
else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
return vb2_streamoff(&ctx->vq_dst, type);
return -EINVAL;
}
/* Set controls - v4l2 control framework */
static int s5p_mfc_dec_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
switch (ctrl->id) {
case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY:
ctx->display_delay = ctrl->val;
break;
case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE:
ctx->display_delay_enable = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER:
ctx->loop_filter_mpeg4 = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE:
ctx->slice_interface = ctrl->val;
break;
default:
mfc_err("Invalid control 0x%08x\n", ctrl->id);
return -EINVAL;
}
return 0;
}
static int s5p_mfc_dec_g_v_ctrl(struct v4l2_ctrl *ctrl)
{
struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
struct s5p_mfc_dev *dev = ctx->dev;
switch (ctrl->id) {
case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
if (ctx->state >= MFCINST_HEAD_PARSED &&
ctx->state < MFCINST_ABORT) {
ctrl->val = ctx->pb_count;
break;
} else if (ctx->state != MFCINST_INIT &&
ctx->state != MFCINST_RES_CHANGE_END) {
v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
return -EINVAL;
}
/* Should wait for the header to be parsed */
s5p_mfc_wait_for_done_ctx(ctx,
S5P_MFC_R2H_CMD_SEQ_DONE_RET, 0);
if (ctx->state >= MFCINST_HEAD_PARSED &&
ctx->state < MFCINST_ABORT) {
ctrl->val = ctx->pb_count;
} else {
v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
return -EINVAL;
}
break;
}
return 0;
}
static const struct v4l2_ctrl_ops s5p_mfc_dec_ctrl_ops = {
.s_ctrl = s5p_mfc_dec_s_ctrl,
.g_volatile_ctrl = s5p_mfc_dec_g_v_ctrl,
};
/* Get cropping information */
static int vidioc_g_crop(struct file *file, void *priv,
struct v4l2_crop *cr)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
struct s5p_mfc_dev *dev = ctx->dev;
u32 left, right, top, bottom;
if (ctx->state != MFCINST_HEAD_PARSED &&
ctx->state != MFCINST_RUNNING &&
ctx->state != MFCINST_FINISHING &&
ctx->state != MFCINST_FINISHED) {
mfc_err("Can not get crop information\n");
return -EINVAL;
}
if (ctx->src_fmt->fourcc == V4L2_PIX_FMT_H264) {
left = s5p_mfc_hw_call(dev->mfc_ops, get_crop_info_h, ctx);
right = left >> S5P_FIMV_SHARED_CROP_RIGHT_SHIFT;
left = left & S5P_FIMV_SHARED_CROP_LEFT_MASK;
top = s5p_mfc_hw_call(dev->mfc_ops, get_crop_info_v, ctx);
bottom = top >> S5P_FIMV_SHARED_CROP_BOTTOM_SHIFT;
top = top & S5P_FIMV_SHARED_CROP_TOP_MASK;
cr->c.left = left;
cr->c.top = top;
cr->c.width = ctx->img_width - left - right;
cr->c.height = ctx->img_height - top - bottom;
mfc_debug(2, "Cropping info [h264]: l=%d t=%d w=%d h=%d (r=%d b=%d fw=%d fh=%d\n",
left, top, cr->c.width, cr->c.height, right, bottom,
ctx->buf_width, ctx->buf_height);
} else {
cr->c.left = 0;
cr->c.top = 0;
cr->c.width = ctx->img_width;
cr->c.height = ctx->img_height;
mfc_debug(2, "Cropping info: w=%d h=%d fw=%d fh=%d\n",
cr->c.width, cr->c.height, ctx->buf_width,
ctx->buf_height);
}
return 0;
}
static int vidioc_decoder_cmd(struct file *file, void *priv,
struct v4l2_decoder_cmd *cmd)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
struct s5p_mfc_dev *dev = ctx->dev;
struct s5p_mfc_buf *buf;
unsigned long flags;
switch (cmd->cmd) {
case V4L2_DEC_CMD_STOP:
if (cmd->flags != 0)
return -EINVAL;
if (!vb2_is_streaming(&ctx->vq_src))
return -EINVAL;
spin_lock_irqsave(&dev->irqlock, flags);
if (list_empty(&ctx->src_queue)) {
mfc_err("EOS: empty src queue, entering finishing state");
ctx->state = MFCINST_FINISHING;
if (s5p_mfc_ctx_ready(ctx))
set_work_bit_irqsave(ctx);
spin_unlock_irqrestore(&dev->irqlock, flags);
s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
} else {
mfc_err("EOS: marking last buffer of stream");
buf = list_entry(ctx->src_queue.prev,
struct s5p_mfc_buf, list);
if (buf->flags & MFC_BUF_FLAG_USED)
ctx->state = MFCINST_FINISHING;
else
buf->flags |= MFC_BUF_FLAG_EOS;
spin_unlock_irqrestore(&dev->irqlock, flags);
}
break;
default:
return -EINVAL;
}
return 0;
}
static int vidioc_subscribe_event(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub)
{
switch (sub->type) {
case V4L2_EVENT_EOS:
return v4l2_event_subscribe(fh, sub, 2, NULL);
case V4L2_EVENT_SOURCE_CHANGE:
return v4l2_src_change_event_subscribe(fh, sub);
default:
return -EINVAL;
}
}
/* v4l2_ioctl_ops */
static const struct v4l2_ioctl_ops s5p_mfc_dec_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_enum_fmt_vid_cap_mplane = vidioc_enum_fmt_vid_cap_mplane,
.vidioc_enum_fmt_vid_out_mplane = vidioc_enum_fmt_vid_out_mplane,
.vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt,
.vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt,
.vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt,
.vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt,
.vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt,
.vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt,
.vidioc_reqbufs = vidioc_reqbufs,
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
.vidioc_expbuf = vidioc_expbuf,
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
.vidioc_g_crop = vidioc_g_crop,
.vidioc_decoder_cmd = vidioc_decoder_cmd,
.vidioc_subscribe_event = vidioc_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static int s5p_mfc_queue_setup(struct vb2_queue *vq,
unsigned int *buf_count,
unsigned int *plane_count, unsigned int psize[],
struct device *alloc_devs[])
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
struct s5p_mfc_dev *dev = ctx->dev;
/* Video output for decoding (source)
* this can be set after getting an instance */
if (ctx->state == MFCINST_INIT &&
vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
/* A single plane is required for input */
*plane_count = 1;
if (*buf_count < 1)
*buf_count = 1;
if (*buf_count > MFC_MAX_BUFFERS)
*buf_count = MFC_MAX_BUFFERS;
/* Video capture for decoding (destination)
* this can be set after the header was parsed */
} else if (ctx->state == MFCINST_HEAD_PARSED &&
vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
/* Output plane count is 2 - one for Y and one for CbCr */
*plane_count = 2;
/* Setup buffer count */
if (*buf_count < ctx->pb_count)
*buf_count = ctx->pb_count;
if (*buf_count > ctx->pb_count + MFC_MAX_EXTRA_DPB)
*buf_count = ctx->pb_count + MFC_MAX_EXTRA_DPB;
if (*buf_count > MFC_MAX_BUFFERS)
*buf_count = MFC_MAX_BUFFERS;
} else {
mfc_err("State seems invalid. State = %d, vq->type = %d\n",
ctx->state, vq->type);
return -EINVAL;
}
mfc_debug(2, "Buffer count=%d, plane count=%d\n",
*buf_count, *plane_count);
if (ctx->state == MFCINST_HEAD_PARSED &&
vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
psize[0] = ctx->luma_size;
psize[1] = ctx->chroma_size;
if (IS_MFCV6_PLUS(dev))
alloc_devs[0] = ctx->dev->mem_dev[BANK_L_CTX];
else
alloc_devs[0] = ctx->dev->mem_dev[BANK_R_CTX];
alloc_devs[1] = ctx->dev->mem_dev[BANK_L_CTX];
} else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
ctx->state == MFCINST_INIT) {
psize[0] = ctx->dec_src_buf_size;
alloc_devs[0] = ctx->dev->mem_dev[BANK_L_CTX];
} else {
mfc_err("This video node is dedicated to decoding. Decoding not initialized\n");
return -EINVAL;
}
return 0;
}
static int s5p_mfc_buf_init(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct vb2_queue *vq = vb->vb2_queue;
struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
unsigned int i;
if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
if (ctx->capture_state == QUEUE_BUFS_MMAPED)
return 0;
for (i = 0; i < ctx->dst_fmt->num_planes; i++) {
if (IS_ERR_OR_NULL(ERR_PTR(
vb2_dma_contig_plane_dma_addr(vb, i)))) {
mfc_err("Plane mem not allocated\n");
return -EINVAL;
}
}
if (vb2_plane_size(vb, 0) < ctx->luma_size ||
vb2_plane_size(vb, 1) < ctx->chroma_size) {
mfc_err("Plane buffer (CAPTURE) is too small\n");
return -EINVAL;
}
i = vb->index;
ctx->dst_bufs[i].b = vbuf;
ctx->dst_bufs[i].cookie.raw.luma =
vb2_dma_contig_plane_dma_addr(vb, 0);
ctx->dst_bufs[i].cookie.raw.chroma =
vb2_dma_contig_plane_dma_addr(vb, 1);
ctx->dst_bufs_cnt++;
} else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
if (IS_ERR_OR_NULL(ERR_PTR(
vb2_dma_contig_plane_dma_addr(vb, 0)))) {
mfc_err("Plane memory not allocated\n");
return -EINVAL;
}
if (vb2_plane_size(vb, 0) < ctx->dec_src_buf_size) {
mfc_err("Plane buffer (OUTPUT) is too small\n");
return -EINVAL;
}
i = vb->index;
ctx->src_bufs[i].b = vbuf;
ctx->src_bufs[i].cookie.stream =
vb2_dma_contig_plane_dma_addr(vb, 0);
ctx->src_bufs_cnt++;
} else {
mfc_err("s5p_mfc_buf_init: unknown queue type\n");
return -EINVAL;
}
return 0;
}
static int s5p_mfc_start_streaming(struct vb2_queue *q, unsigned int count)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
struct s5p_mfc_dev *dev = ctx->dev;
v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
if (ctx->state == MFCINST_FINISHING ||
ctx->state == MFCINST_FINISHED)
ctx->state = MFCINST_RUNNING;
/* If context is ready then dev = work->data;schedule it to run */
if (s5p_mfc_ctx_ready(ctx))
set_work_bit_irqsave(ctx);
s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
return 0;
}
static void s5p_mfc_stop_streaming(struct vb2_queue *q)
{
unsigned long flags;
struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
struct s5p_mfc_dev *dev = ctx->dev;
int aborted = 0;
spin_lock_irqsave(&dev->irqlock, flags);
if ((ctx->state == MFCINST_FINISHING ||
ctx->state == MFCINST_RUNNING) &&
dev->curr_ctx == ctx->num && dev->hw_lock) {
ctx->state = MFCINST_ABORT;
spin_unlock_irqrestore(&dev->irqlock, flags);
s5p_mfc_wait_for_done_ctx(ctx,
S5P_MFC_R2H_CMD_FRAME_DONE_RET, 0);
aborted = 1;
spin_lock_irqsave(&dev->irqlock, flags);
}
if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
s5p_mfc_cleanup_queue(&ctx->dst_queue, &ctx->vq_dst);
INIT_LIST_HEAD(&ctx->dst_queue);
ctx->dst_queue_cnt = 0;
ctx->dpb_flush_flag = 1;
ctx->dec_dst_flag = 0;
if (IS_MFCV6_PLUS(dev) && (ctx->state == MFCINST_RUNNING)) {
ctx->state = MFCINST_FLUSH;
set_work_bit_irqsave(ctx);
s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
spin_unlock_irqrestore(&dev->irqlock, flags);
if (s5p_mfc_wait_for_done_ctx(ctx,
S5P_MFC_R2H_CMD_DPB_FLUSH_RET, 0))
mfc_err("Err flushing buffers\n");
spin_lock_irqsave(&dev->irqlock, flags);
}
} else if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
s5p_mfc_cleanup_queue(&ctx->src_queue, &ctx->vq_src);
INIT_LIST_HEAD(&ctx->src_queue);
ctx->src_queue_cnt = 0;
}
if (aborted)
ctx->state = MFCINST_RUNNING;
spin_unlock_irqrestore(&dev->irqlock, flags);
}
static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
{
struct vb2_queue *vq = vb->vb2_queue;
struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
struct s5p_mfc_dev *dev = ctx->dev;
unsigned long flags;
struct s5p_mfc_buf *mfc_buf;
if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
mfc_buf = &ctx->src_bufs[vb->index];
mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
spin_lock_irqsave(&dev->irqlock, flags);
list_add_tail(&mfc_buf->list, &ctx->src_queue);
ctx->src_queue_cnt++;
spin_unlock_irqrestore(&dev->irqlock, flags);
} else if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
mfc_buf = &ctx->dst_bufs[vb->index];
mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
/* Mark destination as available for use by MFC */
spin_lock_irqsave(&dev->irqlock, flags);
set_bit(vb->index, &ctx->dec_dst_flag);
list_add_tail(&mfc_buf->list, &ctx->dst_queue);
ctx->dst_queue_cnt++;
spin_unlock_irqrestore(&dev->irqlock, flags);
} else {
mfc_err("Unsupported buffer type (%d)\n", vq->type);
}
if (s5p_mfc_ctx_ready(ctx))
set_work_bit_irqsave(ctx);
s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
}
static struct vb2_ops s5p_mfc_dec_qops = {
.queue_setup = s5p_mfc_queue_setup,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
.buf_init = s5p_mfc_buf_init,
.start_streaming = s5p_mfc_start_streaming,
.stop_streaming = s5p_mfc_stop_streaming,
.buf_queue = s5p_mfc_buf_queue,
};
const struct s5p_mfc_codec_ops *get_dec_codec_ops(void)
{
return &decoder_codec_ops;
}
struct vb2_ops *get_dec_queue_ops(void)
{
return &s5p_mfc_dec_qops;
}
const struct v4l2_ioctl_ops *get_dec_v4l2_ioctl_ops(void)
{
return &s5p_mfc_dec_ioctl_ops;
}
#define IS_MFC51_PRIV(x) ((V4L2_CTRL_ID2WHICH(x) == V4L2_CTRL_CLASS_MPEG) \
&& V4L2_CTRL_DRIVER_PRIV(x))
int s5p_mfc_dec_ctrls_setup(struct s5p_mfc_ctx *ctx)
{
struct v4l2_ctrl_config cfg;
int i;
v4l2_ctrl_handler_init(&ctx->ctrl_handler, NUM_CTRLS);
if (ctx->ctrl_handler.error) {
mfc_err("v4l2_ctrl_handler_init failed\n");
return ctx->ctrl_handler.error;
}
for (i = 0; i < NUM_CTRLS; i++) {
if (IS_MFC51_PRIV(controls[i].id)) {
memset(&cfg, 0, sizeof(struct v4l2_ctrl_config));
cfg.ops = &s5p_mfc_dec_ctrl_ops;
cfg.id = controls[i].id;
cfg.min = controls[i].minimum;
cfg.max = controls[i].maximum;
cfg.def = controls[i].default_value;
cfg.name = controls[i].name;
cfg.type = controls[i].type;
cfg.step = controls[i].step;
cfg.menu_skip_mask = 0;
ctx->ctrls[i] = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
&cfg, NULL);
} else {
ctx->ctrls[i] = v4l2_ctrl_new_std(&ctx->ctrl_handler,
&s5p_mfc_dec_ctrl_ops,
controls[i].id, controls[i].minimum,
controls[i].maximum, controls[i].step,
controls[i].default_value);
}
if (ctx->ctrl_handler.error) {
mfc_err("Adding control (%d) failed\n", i);
return ctx->ctrl_handler.error;
}
if (controls[i].is_volatile && ctx->ctrls[i])
ctx->ctrls[i]->flags |= V4L2_CTRL_FLAG_VOLATILE;
}
return 0;
}
void s5p_mfc_dec_ctrls_delete(struct s5p_mfc_ctx *ctx)
{
int i;
v4l2_ctrl_handler_free(&ctx->ctrl_handler);
for (i = 0; i < NUM_CTRLS; i++)
ctx->ctrls[i] = NULL;
}
void s5p_mfc_dec_init(struct s5p_mfc_ctx *ctx)
{
struct v4l2_format f;
f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_H264;
ctx->src_fmt = find_format(&f, MFC_FMT_DEC);
if (IS_MFCV8_PLUS(ctx->dev))
f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12M;
else if (IS_MFCV6_PLUS(ctx->dev))
f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12MT_16X16;
else
f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12MT;
ctx->dst_fmt = find_format(&f, MFC_FMT_RAW);
mfc_debug(2, "Default src_fmt is %p, dest_fmt is %p\n",
ctx->src_fmt, ctx->dst_fmt);
}
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