This patch ports mem2mem test device to videobuf2 framework.
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
drivers/media/video/Kconfig | 2 +-
drivers/media/video/mem2mem_testdev.c | 227 +++++++++++++++-----------------
2 files changed, 107 insertions(+), 122 deletions(-)
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index 8e5116e..38fc077 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -992,7 +992,7 @@ if V4L_MEM2MEM_DRIVERS
config VIDEO_MEM2MEM_TESTDEV
tristate "Virtual test device for mem2mem framework"
depends on VIDEO_DEV && VIDEO_V4L2
- select VIDEOBUF_VMALLOC
+ select VIDEOBUF2_VMALLOC
select V4L2_MEM2MEM_DEV
default n
---help---
diff --git a/drivers/media/video/mem2mem_testdev.c b/drivers/media/video/mem2mem_testdev.c
index c179041..6ab2d4f 100644
--- a/drivers/media/video/mem2mem_testdev.c
+++ b/drivers/media/video/mem2mem_testdev.c
@@ -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",
@@ -733,120 +740,94 @@ static const struct v4l2_ioctl_ops m2mtest_ioctl_ops = {
* Queue operations
*/
-static void m2mtest_buf_release(struct videobuf_queue *vq,
- struct videobuf_buffer *vb)
-{
- 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)
+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;
+ 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:
--
1.7.2.3
--
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