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[media] v4l: mem2mem: port m2m_testdev to vb2 

This patch ports mem2mem test device to videobuf2 framework.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Marek Szyprowski 2011-01-12 06:50:55 -03:00 committed by Mauro Carvalho Chehab
parent 908a0d7c58
commit d80ee38cd8
2 changed files with 107 additions and 123 deletions
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3
drivers/media/video/Kconfig
View File

@ -989,8 +989,7 @@ if V4L_MEM2MEM_DRIVERS
config VIDEO_MEM2MEM_TESTDEV
tristate "Virtual test device for mem2mem framework"
depends on VIDEO_DEV && VIDEO_V4L2
depends on BROKEN
select VIDEOBUF_VMALLOC
select VIDEOBUF2_VMALLOC
select V4L2_MEM2MEM_DEV
default n
---help---

227
drivers/media/video/mem2mem_testdev.c
View File

@ -28,7 +28,7 @@
#include <media/v4l2-mem2mem.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/videobuf-vmalloc.h>
#include <media/videobuf2-vmalloc.h>
#define MEM2MEM_TEST_MODULE_NAME "mem2mem-testdev"
@ -201,11 +201,6 @@ struct m2mtest_ctx {
struct v4l2_m2m_ctx *m2m_ctx;
};
struct m2mtest_buffer {
/* vb must be first! */
struct videobuf_buffer vb;
};
static struct v4l2_queryctrl *get_ctrl(int id)
{
int i;
@ -219,37 +214,41 @@ static struct v4l2_queryctrl *get_ctrl(int id)
}
static int device_process(struct m2mtest_ctx *ctx,
struct m2mtest_buffer *in_buf,
struct m2mtest_buffer *out_buf)
struct vb2_buffer *in_vb,
struct vb2_buffer *out_vb)
{
struct m2mtest_dev *dev = ctx->dev;
struct m2mtest_q_data *q_data;
u8 *p_in, *p_out;
int x, y, t, w;
int tile_w, bytes_left;
struct videobuf_queue *src_q;
struct videobuf_queue *dst_q;
int width, height, bytesperline;
src_q = v4l2_m2m_get_src_vq(ctx->m2m_ctx);
dst_q = v4l2_m2m_get_dst_vq(ctx->m2m_ctx);
p_in = videobuf_queue_to_vaddr(src_q, &in_buf->vb);
p_out = videobuf_queue_to_vaddr(dst_q, &out_buf->vb);
q_data = get_q_data(V4L2_BUF_TYPE_VIDEO_OUTPUT);
width = q_data->width;
height = q_data->height;
bytesperline = (q_data->width * q_data->fmt->depth) >> 3;
p_in = vb2_plane_vaddr(in_vb, 0);
p_out = vb2_plane_vaddr(out_vb, 0);
if (!p_in || !p_out) {
v4l2_err(&dev->v4l2_dev,
"Acquiring kernel pointers to buffers failed\n");
return -EFAULT;
}
if (in_buf->vb.size > out_buf->vb.size) {
if (vb2_plane_size(in_vb, 0) > vb2_plane_size(out_vb, 0)) {
v4l2_err(&dev->v4l2_dev, "Output buffer is too small\n");
return -EINVAL;
}
tile_w = (in_buf->vb.width * (q_data[V4L2_M2M_DST].fmt->depth >> 3))
tile_w = (width * (q_data[V4L2_M2M_DST].fmt->depth >> 3))
/ MEM2MEM_NUM_TILES;
bytes_left = in_buf->vb.bytesperline - tile_w * MEM2MEM_NUM_TILES;
bytes_left = bytesperline - tile_w * MEM2MEM_NUM_TILES;
w = 0;
for (y = 0; y < in_buf->vb.height; ++y) {
for (y = 0; y < height; ++y) {
for (t = 0; t < MEM2MEM_NUM_TILES; ++t) {
if (w & 0x1) {
for (x = 0; x < tile_w; ++x)
@ -301,6 +300,21 @@ 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
@ -311,7 +325,7 @@ static void device_run(void *priv)
{
struct m2mtest_ctx *ctx = priv;
struct m2mtest_dev *dev = ctx->dev;
struct m2mtest_buffer *src_buf, *dst_buf;
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);
@ -322,12 +336,11 @@ static void device_run(void *priv)
schedule_irq(dev, ctx->transtime);
}
static void device_isr(unsigned long priv)
{
struct m2mtest_dev *m2mtest_dev = (struct m2mtest_dev *)priv;
struct m2mtest_ctx *curr_ctx;
struct m2mtest_buffer *src_buf, *dst_buf;
struct vb2_buffer *src_vb, *dst_vb;
unsigned long flags;
curr_ctx = v4l2_m2m_get_curr_priv(m2mtest_dev->m2m_dev);
@ -338,31 +351,26 @@ static void device_isr(unsigned long priv)
return;
}
src_buf = v4l2_m2m_src_buf_remove(curr_ctx->m2m_ctx);
dst_buf = v4l2_m2m_dst_buf_remove(curr_ctx->m2m_ctx);
src_vb = v4l2_m2m_src_buf_remove(curr_ctx->m2m_ctx);
dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->m2m_ctx);
curr_ctx->num_processed++;
spin_lock_irqsave(&m2mtest_dev->irqlock, flags);
v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE);
v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE);
spin_unlock_irqrestore(&m2mtest_dev->irqlock, flags);
if (curr_ctx->num_processed == curr_ctx->translen
|| curr_ctx->aborting) {
dprintk(curr_ctx->dev, "Finishing transaction\n");
curr_ctx->num_processed = 0;
spin_lock_irqsave(&m2mtest_dev->irqlock, flags);
src_buf->vb.state = dst_buf->vb.state = VIDEOBUF_DONE;
wake_up(&src_buf->vb.done);
wake_up(&dst_buf->vb.done);
spin_unlock_irqrestore(&m2mtest_dev->irqlock, flags);
v4l2_m2m_job_finish(m2mtest_dev->m2m_dev, curr_ctx->m2m_ctx);
} else {
spin_lock_irqsave(&m2mtest_dev->irqlock, flags);
src_buf->vb.state = dst_buf->vb.state = VIDEOBUF_DONE;
wake_up(&src_buf->vb.done);
wake_up(&dst_buf->vb.done);
spin_unlock_irqrestore(&m2mtest_dev->irqlock, flags);
device_run(curr_ctx);
}
}
/*
* video ioctls
*/
@ -423,7 +431,7 @@ static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
static int vidioc_g_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f)
{
struct videobuf_queue *vq;
struct vb2_queue *vq;
struct m2mtest_q_data *q_data;
vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
@ -434,7 +442,7 @@ static int vidioc_g_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f)
f->fmt.pix.width = q_data->width;
f->fmt.pix.height = q_data->height;
f->fmt.pix.field = vq->field;
f->fmt.pix.field = V4L2_FIELD_NONE;
f->fmt.pix.pixelformat = q_data->fmt->fourcc;
f->fmt.pix.bytesperline = (q_data->width * q_data->fmt->depth) >> 3;
f->fmt.pix.sizeimage = q_data->sizeimage;
@ -523,7 +531,7 @@ static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
static int vidioc_s_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f)
{
struct m2mtest_q_data *q_data;
struct videobuf_queue *vq;
struct vb2_queue *vq;
vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
if (!vq)
@ -533,7 +541,7 @@ static int vidioc_s_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f)
if (!q_data)
return -EINVAL;
if (videobuf_queue_is_busy(vq)) {
if (vb2_is_busy(vq)) {
v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
return -EBUSY;
}
@ -543,7 +551,6 @@ static int vidioc_s_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f)
q_data->height = f->fmt.pix.height;
q_data->sizeimage = q_data->width * q_data->height
* q_data->fmt->depth >> 3;
vq->field = f->fmt.pix.field;
dprintk(ctx->dev,
"Setting format for type %d, wxh: %dx%d, fmt: %d\n",
@ -733,121 +740,95 @@ static const struct v4l2_ioctl_ops m2mtest_ioctl_ops = {
* Queue operations
*/
static void m2mtest_buf_release(struct videobuf_queue *vq,
struct videobuf_buffer *vb)
static int m2mtest_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
unsigned int *nplanes, unsigned long sizes[],
void *alloc_ctxs[])
{
struct m2mtest_ctx *ctx = vq->priv_data;
dprintk(ctx->dev, "type: %d, index: %d, state: %d\n",
vq->type, vb->i, vb->state);
videobuf_vmalloc_free(vb);
vb->state = VIDEOBUF_NEEDS_INIT;
}
static int m2mtest_buf_setup(struct videobuf_queue *vq, unsigned int *count,
unsigned int *size)
{
struct m2mtest_ctx *ctx = vq->priv_data;
struct m2mtest_ctx *ctx = vb2_get_drv_priv(vq);
struct m2mtest_q_data *q_data;
unsigned int size, count = *nbuffers;
q_data = get_q_data(vq->type);
*size = q_data->width * q_data->height * q_data->fmt->depth >> 3;
dprintk(ctx->dev, "size:%d, w/h %d/%d, depth: %d\n",
*size, q_data->width, q_data->height, q_data->fmt->depth);
size = q_data->width * q_data->height * q_data->fmt->depth >> 3;
if (0 == *count)
*count = MEM2MEM_DEF_NUM_BUFS;
while (size * count > MEM2MEM_VID_MEM_LIMIT)
(count)--;
while (*size * *count > MEM2MEM_VID_MEM_LIMIT)
(*count)--;
*nplanes = 1;
*nbuffers = count;
sizes[0] = size;
v4l2_info(&ctx->dev->v4l2_dev,
"%d buffers of size %d set up.\n", *count, *size);
/*
* videobuf2-vmalloc allocator is context-less so no need to set
* alloc_ctxs array.
*/
dprintk(ctx->dev, "get %d buffer(s) of size %d each.\n", count, size);
return 0;
}
static int m2mtest_buf_prepare(struct videobuf_queue *vq,
struct videobuf_buffer *vb,
enum v4l2_field field)
static int m2mtest_buf_prepare(struct vb2_buffer *vb)
{
struct m2mtest_ctx *ctx = vq->priv_data;
struct m2mtest_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
struct m2mtest_q_data *q_data;
int ret;
dprintk(ctx->dev, "type: %d, index: %d, state: %d\n",
vq->type, vb->i, vb->state);
dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type);
q_data = get_q_data(vq->type);
q_data = get_q_data(vb->vb2_queue->type);
if (vb->baddr) {
/* User-provided buffer */
if (vb->bsize < q_data->sizeimage) {
/* Buffer too small to fit a frame */
v4l2_err(&ctx->dev->v4l2_dev,
"User-provided buffer too small\n");
return -EINVAL;
}
} else if (vb->state != VIDEOBUF_NEEDS_INIT
&& vb->bsize < q_data->sizeimage) {
/* We provide the buffer, but it's already been initialized
* and is too small */
if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
dprintk(ctx->dev, "%s data will not fit into plane (%lu < %lu)\n",
__func__, vb2_plane_size(vb, 0), (long)q_data->sizeimage);
return -EINVAL;
}
vb->width = q_data->width;
vb->height = q_data->height;
vb->bytesperline = (q_data->width * q_data->fmt->depth) >> 3;
vb->size = q_data->sizeimage;
vb->field = field;
if (VIDEOBUF_NEEDS_INIT == vb->state) {
ret = videobuf_iolock(vq, vb, NULL);
if (ret) {
v4l2_err(&ctx->dev->v4l2_dev,
"Iolock failed\n");
goto fail;
}
}
vb->state = VIDEOBUF_PREPARED;
vb2_set_plane_payload(vb, 0, q_data->sizeimage);
return 0;
fail:
m2mtest_buf_release(vq, vb);
return ret;
}
static void m2mtest_buf_queue(struct videobuf_queue *vq,
struct videobuf_buffer *vb)
static void m2mtest_buf_queue(struct vb2_buffer *vb)
{
struct m2mtest_ctx *ctx = vq->priv_data;
v4l2_m2m_buf_queue(ctx->m2m_ctx, vq, vb);
struct m2mtest_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
}
static struct videobuf_queue_ops m2mtest_qops = {
.buf_setup = m2mtest_buf_setup,
.buf_prepare = m2mtest_buf_prepare,
.buf_queue = m2mtest_buf_queue,
.buf_release = m2mtest_buf_release,
static struct vb2_ops m2mtest_qops = {
.queue_setup = m2mtest_queue_setup,
.buf_prepare = m2mtest_buf_prepare,
.buf_queue = m2mtest_buf_queue,
};
static void queue_init(void *priv, struct videobuf_queue *vq,
enum v4l2_buf_type type)
static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
{
struct m2mtest_ctx *ctx = priv;
struct m2mtest_dev *dev = ctx->dev;
int ret;
videobuf_queue_vmalloc_init(vq, &m2mtest_qops, dev->v4l2_dev.dev,
&dev->irqlock, type, V4L2_FIELD_NONE,
sizeof(struct m2mtest_buffer), priv,
&dev->dev_mutex);
memset(src_vq, 0, sizeof(*src_vq));
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
src_vq->io_modes = VB2_MMAP;
src_vq->drv_priv = ctx;
src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
src_vq->ops = &m2mtest_qops;
src_vq->mem_ops = &vb2_vmalloc_memops;
ret = vb2_queue_init(src_vq);
if (ret)
return ret;
memset(dst_vq, 0, sizeof(*dst_vq));
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
dst_vq->io_modes = VB2_MMAP;
dst_vq->drv_priv = ctx;
dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
dst_vq->ops = &m2mtest_qops;
dst_vq->mem_ops = &vb2_vmalloc_memops;
return vb2_queue_init(dst_vq);
}
/*
* File operations
*/
@ -866,7 +847,8 @@ static int m2mtest_open(struct file *file)
ctx->transtime = MEM2MEM_DEF_TRANSTIME;
ctx->num_processed = 0;
ctx->m2m_ctx = v4l2_m2m_ctx_init(ctx, dev->m2m_dev, queue_init);
ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
if (IS_ERR(ctx->m2m_ctx)) {
int ret = PTR_ERR(ctx->m2m_ctx);
@ -932,6 +914,8 @@ 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)
@ -990,6 +974,7 @@ static int m2mtest_probe(struct platform_device *pdev)
return 0;
v4l2_m2m_release(dev->m2m_dev);
err_m2m:
video_unregister_device(dev->vfd);
rel_vdev: