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[media] s5p-jpeg: Use mem-to-mem ioctl helpers 

Simplify the driver by using the m2m ioctl and vb2 helpers.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sylwester Nawrocki 2013-08-25 17:16:56 -03:00 коммит произвёл Mauro Carvalho Chehab
Родитель 43894d848a
Коммит 718cf4a9da
2 изменённых файлов: 24 добавлений и 112 удалений
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134
drivers/media/platform/s5p-jpeg/jpeg-core.c
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@ -316,9 +316,9 @@ static int s5p_jpeg_open(struct file *file)
if (ret < 0)
goto error;
ctx->m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, queue_init);
if (IS_ERR(ctx->m2m_ctx)) {
ret = PTR_ERR(ctx->m2m_ctx);
ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, queue_init);
if (IS_ERR(ctx->fh.m2m_ctx)) {
ret = PTR_ERR(ctx->fh.m2m_ctx);
goto error;
}
@ -342,7 +342,7 @@ static int s5p_jpeg_release(struct file *file)
struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data);
mutex_lock(&jpeg->lock);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
mutex_unlock(&jpeg->lock);
v4l2_ctrl_handler_free(&ctx->ctrl_handler);
v4l2_fh_del(&ctx->fh);
@ -352,39 +352,13 @@ static int s5p_jpeg_release(struct file *file)
return 0;
}
static unsigned int s5p_jpeg_poll(struct file *file,
struct poll_table_struct *wait)
{
struct s5p_jpeg *jpeg = video_drvdata(file);
struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data);
unsigned int res;
mutex_lock(&jpeg->lock);
res = v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
mutex_unlock(&jpeg->lock);
return res;
}
static int s5p_jpeg_mmap(struct file *file, struct vm_area_struct *vma)
{
struct s5p_jpeg *jpeg = video_drvdata(file);
struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data);
int ret;
if (mutex_lock_interruptible(&jpeg->lock))
return -ERESTARTSYS;
ret = v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
mutex_unlock(&jpeg->lock);
return ret;
}
static const struct v4l2_file_operations s5p_jpeg_fops = {
.owner = THIS_MODULE,
.open = s5p_jpeg_open,
.release = s5p_jpeg_release,
.poll = s5p_jpeg_poll,
.poll = v4l2_m2m_fop_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = s5p_jpeg_mmap,
.mmap = v4l2_m2m_fop_mmap,
};
/*
@ -589,7 +563,7 @@ static int s5p_jpeg_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
struct v4l2_pix_format *pix = &f->fmt.pix;
struct s5p_jpeg_ctx *ct = fh_to_ctx(priv);
vq = v4l2_m2m_get_vq(ct->m2m_ctx, f->type);
vq = v4l2_m2m_get_vq(ct->fh.m2m_ctx, f->type);
if (!vq)
return -EINVAL;
@ -745,7 +719,7 @@ static int s5p_jpeg_s_fmt(struct s5p_jpeg_ctx *ct, struct v4l2_format *f)
struct s5p_jpeg_q_data *q_data = NULL;
struct v4l2_pix_format *pix = &f->fmt.pix;
vq = v4l2_m2m_get_vq(ct->m2m_ctx, f->type);
vq = v4l2_m2m_get_vq(ct->fh.m2m_ctx, f->type);
if (!vq)
return -EINVAL;
@ -792,53 +766,6 @@ static int s5p_jpeg_s_fmt_vid_out(struct file *file, void *priv,
return s5p_jpeg_s_fmt(fh_to_ctx(priv), f);
}
static int s5p_jpeg_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *reqbufs)
{
struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
}
static int s5p_jpeg_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
}
static int s5p_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
}
static int s5p_jpeg_dqbuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
}
static int s5p_jpeg_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
}
static int s5p_jpeg_streamoff(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
}
static int s5p_jpeg_g_selection(struct file *file, void *priv,
struct v4l2_selection *s)
{
@ -972,14 +899,13 @@ static const struct v4l2_ioctl_ops s5p_jpeg_ioctl_ops = {
.vidioc_s_fmt_vid_cap = s5p_jpeg_s_fmt_vid_cap,
.vidioc_s_fmt_vid_out = s5p_jpeg_s_fmt_vid_out,
.vidioc_reqbufs = s5p_jpeg_reqbufs,
.vidioc_querybuf = s5p_jpeg_querybuf,
.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
.vidioc_qbuf = s5p_jpeg_qbuf,
.vidioc_dqbuf = s5p_jpeg_dqbuf,
.vidioc_streamon = s5p_jpeg_streamon,
.vidioc_streamoff = s5p_jpeg_streamoff,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
.vidioc_g_selection = s5p_jpeg_g_selection,
};
@ -997,8 +923,8 @@ static void s5p_jpeg_device_run(void *priv)
struct vb2_buffer *src_buf, *dst_buf;
unsigned long src_addr, dst_addr;
src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
src_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
dst_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
@ -1170,22 +1096,8 @@ static void s5p_jpeg_buf_queue(struct vb2_buffer *vb)
);
q_data->size = q_data->w * q_data->h * q_data->fmt->depth >> 3;
}
if (ctx->m2m_ctx)
v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
}
static void s5p_jpeg_wait_prepare(struct vb2_queue *vq)
{
struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq);
mutex_unlock(&ctx->jpeg->lock);
}
static void s5p_jpeg_wait_finish(struct vb2_queue *vq)
{
struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq);
mutex_lock(&ctx->jpeg->lock);
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
}
static int s5p_jpeg_start_streaming(struct vb2_queue *q, unsigned int count)
@ -1211,8 +1123,8 @@ static struct vb2_ops s5p_jpeg_qops = {
.queue_setup = s5p_jpeg_queue_setup,
.buf_prepare = s5p_jpeg_buf_prepare,
.buf_queue = s5p_jpeg_buf_queue,
.wait_prepare = s5p_jpeg_wait_prepare,
.wait_finish = s5p_jpeg_wait_finish,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
.start_streaming = s5p_jpeg_start_streaming,
.stop_streaming = s5p_jpeg_stop_streaming,
};
@ -1230,6 +1142,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
src_vq->ops = &s5p_jpeg_qops;
src_vq->mem_ops = &vb2_dma_contig_memops;
src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
src_vq->lock = &ctx->jpeg->lock;
ret = vb2_queue_init(src_vq);
if (ret)
@ -1242,6 +1155,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
dst_vq->ops = &s5p_jpeg_qops;
dst_vq->mem_ops = &vb2_dma_contig_memops;
dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->jpeg->lock;
return vb2_queue_init(dst_vq);
}
@ -1267,8 +1181,8 @@ static irqreturn_t s5p_jpeg_irq(int irq, void *dev_id)
curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
src_buf = v4l2_m2m_src_buf_remove(curr_ctx->m2m_ctx);
dst_buf = v4l2_m2m_dst_buf_remove(curr_ctx->m2m_ctx);
src_buf = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx);
dst_buf = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx);
if (curr_ctx->mode == S5P_JPEG_ENCODE)
enc_jpeg_too_large = jpeg_enc_stream_stat(jpeg->regs);
@ -1296,7 +1210,7 @@ static irqreturn_t s5p_jpeg_irq(int irq, void *dev_id)
if (curr_ctx->mode == S5P_JPEG_ENCODE)
vb2_set_plane_payload(dst_buf, 0, payload_size);
v4l2_m2m_buf_done(dst_buf, state);
v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->m2m_ctx);
v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->fh.m2m_ctx);
curr_ctx->subsampling = jpeg_get_subsampling_mode(jpeg->regs);
spin_unlock(&jpeg->slock);

2
drivers/media/platform/s5p-jpeg/jpeg-core.h
Просмотреть файл

@ -115,7 +115,6 @@ struct s5p_jpeg_q_data {
* @jpeg: JPEG IP device for this context
* @mode: compression (encode) operation or decompression (decode)
* @compr_quality: destination image quality in compression (encode) mode
* @m2m_ctx: mem2mem device context
* @out_q: source (output) queue information
* @cap_fmt: destination (capture) queue queue information
* @hdr_parsed: set if header has been parsed during decompression
@ -127,7 +126,6 @@ struct s5p_jpeg_ctx {
unsigned short compr_quality;
unsigned short restart_interval;
unsigned short subsampling;
struct v4l2_m2m_ctx *m2m_ctx;
struct s5p_jpeg_q_data out_q;
struct s5p_jpeg_q_data cap_q;
struct v4l2_fh fh;