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Commit 20702ebc authored by Sylwester Nawrocki's avatar Sylwester Nawrocki Committed by Mauro Carvalho Chehab
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[media] mem2mem_testdev: Use mem-to-mem ioctl and vb2 helpers 

Simplify the driver by using the m2m ioctl and vb2 helpers.
Signed-off-by: default avatarSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Acked-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Acked-by: default avatarKamil Debski <k.debski@samsung.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 8e6e8f93
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Showing with 28 additions and 124 deletions
drivers/media/platform/mem2mem_testdev.c
View file @ 20702ebc
......@@ -177,8 +177,6 @@ struct m2mtest_ctx {
enum v4l2_colorspace colorspace;
struct v4l2_m2m_ctx *m2m_ctx;
/* Source and destination queue data */
struct m2mtest_q_data q_data[2];
};
......@@ -342,8 +340,8 @@ static int job_ready(void *priv)
{
struct m2mtest_ctx *ctx = priv;
if (v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) < ctx->translen
|| v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx) < ctx->translen) {
if (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) < ctx->translen
|| v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx) < ctx->translen) {
dprintk(ctx->dev, "Not enough buffers available\n");
return 0;
}
......@@ -359,21 +357,6 @@ static void job_abort(void *priv)
ctx->aborting = 1;
}
static void m2mtest_lock(void *priv)
{
struct m2mtest_ctx *ctx = priv;
struct m2mtest_dev *dev = ctx->dev;
mutex_lock(&dev->dev_mutex);
}
static void m2mtest_unlock(void *priv)
{
struct m2mtest_ctx *ctx = priv;
struct m2mtest_dev *dev = ctx->dev;
mutex_unlock(&dev->dev_mutex);
}
/* device_run() - prepares and starts the device
*
* This simulates all the immediate preparations required before starting
......@@ -386,8 +369,8 @@ static void device_run(void *priv)
struct m2mtest_dev *dev = ctx->dev;
struct vb2_buffer *src_buf, *dst_buf;
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);
device_process(ctx, src_buf, dst_buf);
......@@ -409,8 +392,8 @@ static void device_isr(unsigned long priv)
return;
}
src_vb = v4l2_m2m_src_buf_remove(curr_ctx->m2m_ctx);
dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->m2m_ctx);
src_vb = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx);
dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx);
curr_ctx->num_processed++;
......@@ -423,7 +406,7 @@ static void device_isr(unsigned long priv)
|| curr_ctx->aborting) {
dprintk(curr_ctx->dev, "Finishing transaction\n");
curr_ctx->num_processed = 0;
v4l2_m2m_job_finish(m2mtest_dev->m2m_dev, curr_ctx->m2m_ctx);
v4l2_m2m_job_finish(m2mtest_dev->m2m_dev, curr_ctx->fh.m2m_ctx);
} else {
device_run(curr_ctx);
}
......@@ -491,7 +474,7 @@ static int vidioc_g_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f)
struct vb2_queue *vq;
struct m2mtest_q_data *q_data;
vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
if (!vq)
return -EINVAL;
......@@ -594,7 +577,7 @@ static int vidioc_s_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f)
struct m2mtest_q_data *q_data;
struct vb2_queue *vq;
vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
if (!vq)
return -EINVAL;
......@@ -648,52 +631,6 @@ static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
return ret;
}
static int vidioc_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *reqbufs)
{
struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
}
static int vidioc_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
}
static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
}
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
}
static int vidioc_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
}
static int vidioc_streamoff(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
}
static int m2mtest_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct m2mtest_ctx *ctx =
......@@ -748,14 +685,14 @@ static const struct v4l2_ioctl_ops m2mtest_ioctl_ops = {
.vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
.vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
.vidioc_reqbufs = vidioc_reqbufs,
.vidioc_querybuf = vidioc_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 = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
......@@ -818,27 +755,15 @@ static int m2mtest_buf_prepare(struct vb2_buffer *vb)
static void m2mtest_buf_queue(struct vb2_buffer *vb)
{
struct m2mtest_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
}
static void m2mtest_wait_prepare(struct vb2_queue *q)
{
struct m2mtest_ctx *ctx = vb2_get_drv_priv(q);
m2mtest_unlock(ctx);
}
static void m2mtest_wait_finish(struct vb2_queue *q)
{
struct m2mtest_ctx *ctx = vb2_get_drv_priv(q);
m2mtest_lock(ctx);
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
}
static struct vb2_ops m2mtest_qops = {
.queue_setup = m2mtest_queue_setup,
.buf_prepare = m2mtest_buf_prepare,
.buf_queue = m2mtest_buf_queue,
.wait_prepare = m2mtest_wait_prepare,
.wait_finish = m2mtest_wait_finish,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
};
static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
......@@ -853,6 +778,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *ds
src_vq->ops = &m2mtest_qops;
src_vq->mem_ops = &vb2_vmalloc_memops;
src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
src_vq->lock = &ctx->dev->dev_mutex;
ret = vb2_queue_init(src_vq);
if (ret)
......@@ -865,6 +791,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *ds
dst_vq->ops = &m2mtest_qops;
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->dev->dev_mutex;
return vb2_queue_init(dst_vq);
}
......@@ -936,10 +863,10 @@ static int m2mtest_open(struct file *file)
ctx->q_data[V4L2_M2M_DST] = ctx->q_data[V4L2_M2M_SRC];
ctx->colorspace = V4L2_COLORSPACE_REC709;
ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
if (IS_ERR(ctx->m2m_ctx)) {
rc = PTR_ERR(ctx->m2m_ctx);
if (IS_ERR(ctx->fh.m2m_ctx)) {
rc = PTR_ERR(ctx->fh.m2m_ctx);
v4l2_ctrl_handler_free(hdl);
kfree(ctx);
......@@ -949,7 +876,8 @@ static int m2mtest_open(struct file *file)
v4l2_fh_add(&ctx->fh);
atomic_inc(&dev->num_inst);
dprintk(dev, "Created instance %p, m2m_ctx: %p\n", ctx, ctx->m2m_ctx);
dprintk(dev, "Created instance: %p, m2m_ctx: %p\n",
ctx, ctx->fh.m2m_ctx);
open_unlock:
mutex_unlock(&dev->dev_mutex);
......@@ -967,7 +895,7 @@ static int m2mtest_release(struct file *file)
v4l2_fh_exit(&ctx->fh);
v4l2_ctrl_handler_free(&ctx->hdl);
mutex_lock(&dev->dev_mutex);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
mutex_unlock(&dev->dev_mutex);
kfree(ctx);
......@@ -976,34 +904,13 @@ static int m2mtest_release(struct file *file)
return 0;
}
static unsigned int m2mtest_poll(struct file *file,
struct poll_table_struct *wait)
{
struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
}
static int m2mtest_mmap(struct file *file, struct vm_area_struct *vma)
{
struct m2mtest_dev *dev = video_drvdata(file);
struct m2mtest_ctx *ctx = file2ctx(file);
int res;
if (mutex_lock_interruptible(&dev->dev_mutex))
return -ERESTARTSYS;
res = v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
mutex_unlock(&dev->dev_mutex);
return res;
}
static const struct v4l2_file_operations m2mtest_fops = {
.owner = THIS_MODULE,
.open = m2mtest_open,
.release = m2mtest_release,
.poll = m2mtest_poll,
.poll = v4l2_m2m_fop_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = m2mtest_mmap,
.mmap = v4l2_m2m_fop_mmap,
};
static struct video_device m2mtest_videodev = {
......@@ -1019,8 +926,6 @@ static struct v4l2_m2m_ops m2m_ops = {
.device_run = device_run,
.job_ready = job_ready,
.job_abort = job_abort,
.lock = m2mtest_lock,
.unlock = m2mtest_unlock,
};
static int m2mtest_probe(struct platform_device *pdev)
......@@ -1133,4 +1038,3 @@ static int __init m2mtest_init(void)
module_init(m2mtest_init);
module_exit(m2mtest_exit);
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