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media fixes for v4.5-rc3

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Merge tag 'media/v4.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 - vb2: fix a vb2_thread regression and DVB read() breakages
 - vsp1: fix compilation and links creation
 - s5k6a3: Fix VIDIOC_SUBDEV_G_FMT ioctl for TRY format
 - exynos4-is: fix a build issue, format negotiation and sensor detection
 - Fix a regression with pvrusb2 and ir-kbd-i2c
 - atmel-isi: fix debug message which only show the first format
 - tda1004x: fix a tuning bug if G_PROPERTY is called too early
 - saa7134-alsa: fix a bug at device unbinding/driver removal
 - Fix build of one driver if !HAS_DMA
 - soc_camera: cleanup control device on async_unbind

* tag 'media/v4.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] saa7134-alsa: Only frees registered sound cards
  [media] vb2-core: call threadio->fnc() if !VB2_BUF_STATE_ERROR
  [media] vb2: fix nasty vb2_thread regression
  [media] tda1004x: only update the frontend properties if locked
  [media] media: i2c: Don't export ir-kbd-i2c module alias
  [media] exynos4-is: make VIDEO_SAMSUNG_EXYNOS4_IS tristate
  [media] media: Kconfig: add dependency of HAS_DMA
  [media] exynos4-is: Wait for 100us before opening sensor
  [media] exynos4-is: Open shouldn't fail when sensor entity is not linked
  [media] s5k6a3: Fix VIDIOC_SUBDEV_G_FMT ioctl for TRY format
  [media] exynos4-is: fix a format string bug
  [media] drivers/media: vsp1_video: fix compile error
  [media] atmel-isi: fix debug message which only show the first format
  [media] soc_camera: cleanup control device on async_unbind
  [media] v4l: vsp1: Fix wrong entities links creation
This commit is contained in:
Linus Torvalds 2016-02-05 12:46:38 -08:00
commit dd6f86af39
16 changed files with 157 additions and 86 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/media/dvb-frontends/tda1004x.c
View File

@ -903,9 +903,18 @@ static int tda1004x_get_fe(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *fe_params = &fe->dtv_property_cache;
struct tda1004x_state* state = fe->demodulator_priv;
int status;
dprintk("%s\n", __func__);
status = tda1004x_read_byte(state, TDA1004X_STATUS_CD);
if (status == -1)
return -EIO;
/* Only update the properties cache if device is locked */
if (!(status & 8))
return 0;
// inversion status
fe_params->inversion = INVERSION_OFF;
if (tda1004x_read_byte(state, TDA1004X_CONFC1) & 0x20)

1
drivers/media/i2c/ir-kbd-i2c.c
View File

@ -478,7 +478,6 @@ static const struct i2c_device_id ir_kbd_id[] = {
{ "ir_rx_z8f0811_hdpvr", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ir_kbd_id);
static struct i2c_driver ir_kbd_driver = {
.driver = {

3
drivers/media/i2c/s5k6a3.c
View File

@ -144,8 +144,7 @@ static int s5k6a3_set_fmt(struct v4l2_subdev *sd,
mf = __s5k6a3_get_format(sensor, cfg, fmt->pad, fmt->which);
if (mf) {
mutex_lock(&sensor->lock);
if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
*mf = fmt->format;
*mf = fmt->format;
mutex_unlock(&sensor->lock);
}
return 0;

5
drivers/media/pci/saa7134/saa7134-alsa.c
View File

@ -1211,6 +1211,8 @@ static int alsa_device_init(struct saa7134_dev *dev)
static int alsa_device_exit(struct saa7134_dev *dev)
{
if (!snd_saa7134_cards[dev->nr])
return 1;
snd_card_free(snd_saa7134_cards[dev->nr]);
snd_saa7134_cards[dev->nr] = NULL;
@ -1260,7 +1262,8 @@ static void saa7134_alsa_exit(void)
int idx;
for (idx = 0; idx < SNDRV_CARDS; idx++) {
snd_card_free(snd_saa7134_cards[idx]);
if (snd_saa7134_cards[idx])
snd_card_free(snd_saa7134_cards[idx]);
}
saa7134_dmasound_init = NULL;

1
drivers/media/platform/Kconfig
View File

@ -215,6 +215,7 @@ config VIDEO_SAMSUNG_EXYNOS_GSC
config VIDEO_STI_BDISP
tristate "STMicroelectronics BDISP 2D blitter driver"
depends on VIDEO_DEV && VIDEO_V4L2
depends on HAS_DMA
depends on ARCH_STI || COMPILE_TEST
select VIDEOBUF2_DMA_CONTIG
select V4L2_MEM2MEM_DEV

2
drivers/media/platform/exynos4-is/Kconfig
View File

@ -1,6 +1,6 @@
config VIDEO_SAMSUNG_EXYNOS4_IS
bool "Samsung S5P/EXYNOS4 SoC series Camera Subsystem driver"
tristate "Samsung S5P/EXYNOS4 SoC series Camera Subsystem driver"
depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
depends on OF && COMMON_CLK

6
drivers/media/platform/exynos4-is/fimc-is.c
View File

@ -631,6 +631,12 @@ static int fimc_is_hw_open_sensor(struct fimc_is *is,
fimc_is_mem_barrier();
/*
* Some user space use cases hang up here without this
* empirically chosen delay.
*/
udelay(100);
mcuctl_write(HIC_OPEN_SENSOR, is, MCUCTL_REG_ISSR(0));
mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
mcuctl_write(sensor->drvdata->id, is, MCUCTL_REG_ISSR(2));

4
drivers/media/platform/exynos4-is/fimc-isp-video.c
View File

@ -218,8 +218,8 @@ static void isp_video_capture_buffer_queue(struct vb2_buffer *vb)
ivb->dma_addr[i];
isp_dbg(2, &video->ve.vdev,
"dma_buf %pad (%d/%d/%d) addr: %pad\n",
&buf_index, ivb->index, i, vb->index,
"dma_buf %d (%d/%d/%d) addr: %pad\n",
buf_index, ivb->index, i, vb->index,
&ivb->dma_addr[i]);
}

99
drivers/media/platform/exynos4-is/media-dev.c
View File

@ -186,32 +186,20 @@ static int fimc_pipeline_s_power(struct fimc_pipeline *p, bool on)
}
/**
* __fimc_pipeline_open - update the pipeline information, enable power
* of all pipeline subdevs and the sensor clock
* @me: media entity to start graph walk with
* @prepare: true to walk the current pipeline and acquire all subdevs
* __fimc_pipeline_enable - enable power of all pipeline subdevs
* and the sensor clock
* @ep: video pipeline structure
* @fmd: fimc media device
*
* Called with the graph mutex held.
*/
static int __fimc_pipeline_open(struct exynos_media_pipeline *ep,
struct media_entity *me, bool prepare)
static int __fimc_pipeline_enable(struct exynos_media_pipeline *ep,
struct fimc_md *fmd)
{
struct fimc_md *fmd = entity_to_fimc_mdev(me);
struct fimc_pipeline *p = to_fimc_pipeline(ep);
struct v4l2_subdev *sd;
int ret;
if (WARN_ON(p == NULL || me == NULL))
return -EINVAL;
if (prepare)
fimc_pipeline_prepare(p, me);
sd = p->subdevs[IDX_SENSOR];
if (sd == NULL)
return -EINVAL;
/* Disable PXLASYNC clock if this pipeline includes FIMC-IS */
/* Enable PXLASYNC clock if this pipeline includes FIMC-IS */
if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) {
ret = clk_prepare_enable(fmd->wbclk[CLK_IDX_WB_B]);
if (ret < 0)
@ -228,6 +216,40 @@ static int __fimc_pipeline_open(struct exynos_media_pipeline *ep,
return ret;
}
/**
* __fimc_pipeline_open - update the pipeline information, enable power
* of all pipeline subdevs and the sensor clock
* @me: media entity to start graph walk with
* @prepare: true to walk the current pipeline and acquire all subdevs
*
* Called with the graph mutex held.
*/
static int __fimc_pipeline_open(struct exynos_media_pipeline *ep,
struct media_entity *me, bool prepare)
{
struct fimc_md *fmd = entity_to_fimc_mdev(me);
struct fimc_pipeline *p = to_fimc_pipeline(ep);
struct v4l2_subdev *sd;
if (WARN_ON(p == NULL || me == NULL))
return -EINVAL;
if (prepare)
fimc_pipeline_prepare(p, me);
sd = p->subdevs[IDX_SENSOR];
if (sd == NULL) {
pr_warn("%s(): No sensor subdev\n", __func__);
/*
* Pipeline open cannot fail so as to make it possible
* for the user space to configure the pipeline.
*/
return 0;
}
return __fimc_pipeline_enable(ep, fmd);
}
/**
* __fimc_pipeline_close - disable the sensor clock and pipeline power
* @fimc: fimc device terminating the pipeline
@ -269,10 +291,43 @@ static int __fimc_pipeline_s_stream(struct exynos_media_pipeline *ep, bool on)
{ IDX_CSIS, IDX_FLITE, IDX_FIMC, IDX_SENSOR, IDX_IS_ISP },
};
struct fimc_pipeline *p = to_fimc_pipeline(ep);
struct fimc_md *fmd = entity_to_fimc_mdev(&p->subdevs[IDX_CSIS]->entity);
enum fimc_subdev_index sd_id;
int i, ret = 0;
if (p->subdevs[IDX_SENSOR] == NULL)
return -ENODEV;
if (p->subdevs[IDX_SENSOR] == NULL) {
if (!fmd->user_subdev_api) {
/*
* Sensor must be already discovered if we
* aren't in the user_subdev_api mode
*/
return -ENODEV;
}
/* Get pipeline sink entity */
if (p->subdevs[IDX_FIMC])
sd_id = IDX_FIMC;
else if (p->subdevs[IDX_IS_ISP])
sd_id = IDX_IS_ISP;
else if (p->subdevs[IDX_FLITE])
sd_id = IDX_FLITE;
else
return -ENODEV;
/*
* Sensor could have been linked between open and STREAMON -
* check if this is the case.
*/
fimc_pipeline_prepare(p, &p->subdevs[sd_id]->entity);
if (p->subdevs[IDX_SENSOR] == NULL)
return -ENODEV;
ret = __fimc_pipeline_enable(ep, fmd);
if (ret < 0)
return ret;
}
for (i = 0; i < IDX_MAX; i++) {
unsigned int idx = seq[on][i];
@ -282,8 +337,10 @@ static int __fimc_pipeline_s_stream(struct exynos_media_pipeline *ep, bool on)
if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
goto error;
}
return 0;
error:
fimc_pipeline_s_power(p, !on);
for (; i >= 0; i--) {
unsigned int idx = seq[on][i];
v4l2_subdev_call(p->subdevs[idx], video, s_stream, !on);

2
drivers/media/platform/soc_camera/atmel-isi.c
View File

@ -795,7 +795,7 @@ static int isi_camera_get_formats(struct soc_camera_device *icd,
xlate->host_fmt = &isi_camera_formats[i];
xlate->code = code.code;
dev_dbg(icd->parent, "Providing format %s using code %d\n",
isi_camera_formats[0].name, code.code);
xlate->host_fmt->name, xlate->code);
}
break;
default:

2
drivers/media/platform/soc_camera/soc_camera.c
View File

@ -1493,6 +1493,8 @@ static void soc_camera_async_unbind(struct v4l2_async_notifier *notifier,
struct soc_camera_async_client, notifier);
struct soc_camera_device *icd = platform_get_drvdata(sasc->pdev);
icd->control = NULL;
if (icd->clk) {
v4l2_clk_unregister(icd->clk);
icd->clk = NULL;

7
drivers/media/platform/vsp1/vsp1_drv.c
View File

@ -256,7 +256,7 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
/* Create links. */
list_for_each_entry(entity, &vsp1->entities, list_dev) {
if (entity->type == VSP1_ENTITY_LIF) {
if (entity->type == VSP1_ENTITY_WPF) {
ret = vsp1_wpf_create_links(vsp1, entity);
if (ret < 0)
goto done;
@ -264,7 +264,10 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
ret = vsp1_rpf_create_links(vsp1, entity);
if (ret < 0)
goto done;
} else {
}
if (entity->type != VSP1_ENTITY_LIF &&
entity->type != VSP1_ENTITY_RPF) {
ret = vsp1_create_links(vsp1, entity);
if (ret < 0)
goto done;

2
drivers/media/platform/vsp1/vsp1_video.c
View File

@ -515,7 +515,7 @@ static bool vsp1_pipeline_stopped(struct vsp1_pipeline *pipe)
bool stopped;
spin_lock_irqsave(&pipe->irqlock, flags);
stopped = pipe->state == VSP1_PIPELINE_STOPPED,
stopped = pipe->state == VSP1_PIPELINE_STOPPED;
spin_unlock_irqrestore(&pipe->irqlock, flags);
return stopped;

95
drivers/media/v4l2-core/videobuf2-core.c
View File

@ -1063,8 +1063,11 @@ EXPORT_SYMBOL_GPL(vb2_discard_done);
*/
static int __qbuf_mmap(struct vb2_buffer *vb, const void *pb)
{
int ret = call_bufop(vb->vb2_queue, fill_vb2_buffer,
vb, pb, vb->planes);
int ret = 0;
if (pb)
ret = call_bufop(vb->vb2_queue, fill_vb2_buffer,
vb, pb, vb->planes);
return ret ? ret : call_vb_qop(vb, buf_prepare, vb);
}
@ -1077,14 +1080,16 @@ static int __qbuf_userptr(struct vb2_buffer *vb, const void *pb)
struct vb2_queue *q = vb->vb2_queue;
void *mem_priv;
unsigned int plane;
int ret;
int ret = 0;
enum dma_data_direction dma_dir =
q->is_output ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
bool reacquired = vb->planes[0].mem_priv == NULL;
memset(planes, 0, sizeof(planes[0]) * vb->num_planes);
/* Copy relevant information provided by the userspace */
ret = call_bufop(vb->vb2_queue, fill_vb2_buffer, vb, pb, planes);
if (pb)
ret = call_bufop(vb->vb2_queue, fill_vb2_buffer,
vb, pb, planes);
if (ret)
return ret;
@ -1192,14 +1197,16 @@ static int __qbuf_dmabuf(struct vb2_buffer *vb, const void *pb)
struct vb2_queue *q = vb->vb2_queue;
void *mem_priv;
unsigned int plane;
int ret;
int ret = 0;
enum dma_data_direction dma_dir =
q->is_output ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
bool reacquired = vb->planes[0].mem_priv == NULL;
memset(planes, 0, sizeof(planes[0]) * vb->num_planes);
/* Copy relevant information provided by the userspace */
ret = call_bufop(vb->vb2_queue, fill_vb2_buffer, vb, pb, planes);
if (pb)
ret = call_bufop(vb->vb2_queue, fill_vb2_buffer,
vb, pb, planes);
if (ret)
return ret;
@ -1520,7 +1527,8 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb)
q->waiting_for_buffers = false;
vb->state = VB2_BUF_STATE_QUEUED;
call_void_bufop(q, copy_timestamp, vb, pb);
if (pb)
call_void_bufop(q, copy_timestamp, vb, pb);
trace_vb2_qbuf(q, vb);
@ -1532,7 +1540,8 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb)
__enqueue_in_driver(vb);
/* Fill buffer information for the userspace */
call_void_bufop(q, fill_user_buffer, vb, pb);
if (pb)
call_void_bufop(q, fill_user_buffer, vb, pb);
/*
* If streamon has been called, and we haven't yet called
@ -1731,7 +1740,8 @@ static void __vb2_dqbuf(struct vb2_buffer *vb)
* The return values from this function are intended to be directly returned
* from vidioc_dqbuf handler in driver.
*/
int vb2_core_dqbuf(struct vb2_queue *q, void *pb, bool nonblocking)
int vb2_core_dqbuf(struct vb2_queue *q, unsigned int *pindex, void *pb,
bool nonblocking)
{
struct vb2_buffer *vb = NULL;
int ret;
@ -1754,8 +1764,12 @@ int vb2_core_dqbuf(struct vb2_queue *q, void *pb, bool nonblocking)
call_void_vb_qop(vb, buf_finish, vb);
if (pindex)
*pindex = vb->index;
/* Fill buffer information for the userspace */
call_void_bufop(q, fill_user_buffer, vb, pb);
if (pb)
call_void_bufop(q, fill_user_buffer, vb, pb);
/* Remove from videobuf queue */
list_del(&vb->queued_entry);
@ -1828,7 +1842,7 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* that's done in dqbuf, but that's not going to happen when we
* cancel the whole queue. Note: this code belongs here, not in
* __vb2_dqbuf() since in vb2_internal_dqbuf() there is a critical
* call to __fill_v4l2_buffer() after buf_finish(). That order can't
* call to __fill_user_buffer() after buf_finish(). That order can't
* be changed, so we can't move the buf_finish() to __vb2_dqbuf().
*/
for (i = 0; i < q->num_buffers; ++i) {
@ -2357,7 +2371,6 @@ struct vb2_fileio_data {
unsigned int count;
unsigned int type;
unsigned int memory;
struct vb2_buffer *b;
struct vb2_fileio_buf bufs[VB2_MAX_FRAME];
unsigned int cur_index;
unsigned int initial_index;
@ -2410,12 +2423,6 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
if (fileio == NULL)
return -ENOMEM;
fileio->b = kzalloc(q->buf_struct_size, GFP_KERNEL);
if (fileio->b == NULL) {
kfree(fileio);
return -ENOMEM;
}
fileio->read_once = q->fileio_read_once;
fileio->write_immediately = q->fileio_write_immediately;
@ -2460,13 +2467,7 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
* Queue all buffers.
*/
for (i = 0; i < q->num_buffers; i++) {
struct vb2_buffer *b = fileio->b;
memset(b, 0, q->buf_struct_size);
b->type = q->type;
b->memory = q->memory;
b->index = i;
ret = vb2_core_qbuf(q, i, b);
ret = vb2_core_qbuf(q, i, NULL);
if (ret)
goto err_reqbufs;
fileio->bufs[i].queued = 1;
@ -2511,7 +2512,6 @@ static int __vb2_cleanup_fileio(struct vb2_queue *q)
q->fileio = NULL;
fileio->count = 0;
vb2_core_reqbufs(q, fileio->memory, &fileio->count);
kfree(fileio->b);
kfree(fileio);
dprintk(3, "file io emulator closed\n");
}
@ -2539,7 +2539,8 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* else is able to provide this information with the write() operation.
*/
bool copy_timestamp = !read && q->copy_timestamp;
int ret, index;
unsigned index;
int ret;
dprintk(3, "mode %s, offset %ld, count %zd, %sblocking\n",
read ? "read" : "write", (long)*ppos, count,
@ -2564,22 +2565,20 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
*/
index = fileio->cur_index;
if (index >= q->num_buffers) {
struct vb2_buffer *b = fileio->b;
struct vb2_buffer *b;
/*
* Call vb2_dqbuf to get buffer back.
*/
memset(b, 0, q->buf_struct_size);
b->type = q->type;
b->memory = q->memory;
ret = vb2_core_dqbuf(q, b, nonblock);
ret = vb2_core_dqbuf(q, &index, NULL, nonblock);
dprintk(5, "vb2_dqbuf result: %d\n", ret);
if (ret)
return ret;
fileio->dq_count += 1;
fileio->cur_index = index = b->index;
fileio->cur_index = index;
buf = &fileio->bufs[index];
b = q->bufs[index];
/*
* Get number of bytes filled by the driver
@ -2630,7 +2629,7 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* Queue next buffer if required.
*/
if (buf->pos == buf->size || (!read && fileio->write_immediately)) {
struct vb2_buffer *b = fileio->b;
struct vb2_buffer *b = q->bufs[index];
/*
* Check if this is the last buffer to read.
@ -2643,15 +2642,11 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
/*
* Call vb2_qbuf and give buffer to the driver.
*/
memset(b, 0, q->buf_struct_size);
b->type = q->type;
b->memory = q->memory;
b->index = index;
b->planes[0].bytesused = buf->pos;
if (copy_timestamp)
b->timestamp = ktime_get_ns();
ret = vb2_core_qbuf(q, index, b);
ret = vb2_core_qbuf(q, index, NULL);
dprintk(5, "vb2_dbuf result: %d\n", ret);
if (ret)
return ret;
@ -2713,10 +2708,9 @@ static int vb2_thread(void *data)
{
struct vb2_queue *q = data;
struct vb2_threadio_data *threadio = q->threadio;
struct vb2_fileio_data *fileio = q->fileio;
bool copy_timestamp = false;
int prequeue = 0;
int index = 0;
unsigned prequeue = 0;
unsigned index = 0;
int ret = 0;
if (q->is_output) {
@ -2728,37 +2722,34 @@ static int vb2_thread(void *data)
for (;;) {
struct vb2_buffer *vb;
struct vb2_buffer *b = fileio->b;
/*
* Call vb2_dqbuf to get buffer back.
*/
memset(b, 0, q->buf_struct_size);
b->type = q->type;
b->memory = q->memory;
if (prequeue) {
b->index = index++;
vb = q->bufs[index++];
prequeue--;
} else {
call_void_qop(q, wait_finish, q);
if (!threadio->stop)
ret = vb2_core_dqbuf(q, b, 0);
ret = vb2_core_dqbuf(q, &index, NULL, 0);
call_void_qop(q, wait_prepare, q);
dprintk(5, "file io: vb2_dqbuf result: %d\n", ret);
if (!ret)
vb = q->bufs[index];
}
if (ret || threadio->stop)
break;
try_to_freeze();
vb = q->bufs[b->index];
if (b->state == VB2_BUF_STATE_DONE)
if (vb->state != VB2_BUF_STATE_ERROR)
if (threadio->fnc(vb, threadio->priv))
break;
call_void_qop(q, wait_finish, q);
if (copy_timestamp)
b->timestamp = ktime_get_ns();;
vb->timestamp = ktime_get_ns();;
if (!threadio->stop)
ret = vb2_core_qbuf(q, b->index, b);
ret = vb2_core_qbuf(q, vb->index, NULL);
call_void_qop(q, wait_prepare, q);
if (ret || threadio->stop)
break;

2
drivers/media/v4l2-core/videobuf2-v4l2.c
View File

@ -625,7 +625,7 @@ static int vb2_internal_dqbuf(struct vb2_queue *q, struct v4l2_buffer *b,
return -EINVAL;
}
ret = vb2_core_dqbuf(q, b, nonblocking);
ret = vb2_core_dqbuf(q, NULL, b, nonblocking);
return ret;
}

3
include/media/videobuf2-core.h
View File

@ -533,7 +533,8 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
const unsigned int requested_sizes[]);
int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb);
int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb);
int vb2_core_dqbuf(struct vb2_queue *q, void *pb, bool nonblocking);
int vb2_core_dqbuf(struct vb2_queue *q, unsigned int *pindex, void *pb,
bool nonblocking);
int vb2_core_streamon(struct vb2_queue *q, unsigned int type);
int vb2_core_streamoff(struct vb2_queue *q, unsigned int type);