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media: vivid: add vivid_create_queue() helper

Browse Source 
Refactor some of the vivid_create_instance code by using a
new vivid_create_queue() helper function.

Also add some sanity checks for the node_types vs input/output_types
module options.

This patch resolves these two smatch parse errors:

drivers/media/platform/vivid/vivid-core.c:1679 vivid_create_instance() parse error: OOM: 3002600Kb sm_state_count = 6160113
drivers/media/platform/vivid/vivid-core.c: drivers/media/platform/vivid/vivid-core.c:1679
vivid_create_instance() parse error: __split_smt: function too hairy.  Giving up after 33 seconds

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Hans Verkuil 2019-11-03 15:01:42 +01:00 committed by Mauro Carvalho Chehab
parent 1318372450
commit 0c90f649d2
3 changed files with 119 additions and 152 deletions
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7
drivers/media/platform/vivid/vivid-cec.c
View File

@ -276,12 +276,11 @@ struct cec_adapter *vivid_cec_alloc_adap(struct vivid_dev *dev,
unsigned int idx,
bool is_source)
{
char name[sizeof(dev->vid_out_dev.name) + 2];
u32 caps = CEC_CAP_DEFAULTS | CEC_CAP_MONITOR_ALL | CEC_CAP_MONITOR_PIN;
char name[32];
snprintf(name, sizeof(name), "%s%d",
is_source ? dev->vid_out_dev.name : dev->vid_cap_dev.name,
idx);
snprintf(name, sizeof(name), "vivid-%03d-vid-%s%d",
dev->inst, is_source ? "out" : "cap", idx);
return cec_allocate_adapter(&vivid_cec_adap_ops, dev,
name, caps, 1);
}

263
drivers/media/platform/vivid/vivid-core.c
View File

@ -680,14 +680,44 @@ static const struct media_device_ops vivid_media_ops = {
};
#endif
static int vivid_create_queue(struct vivid_dev *dev,
struct vb2_queue *q,
u32 buf_type,
unsigned int min_buffers_needed,
const struct vb2_ops *ops)
{
if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->multiplanar)
buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
else if (buf_type == V4L2_BUF_TYPE_VIDEO_OUTPUT && dev->multiplanar)
buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
else if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE && !dev->has_raw_vbi_cap)
buf_type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
else if (buf_type == V4L2_BUF_TYPE_VBI_OUTPUT && !dev->has_raw_vbi_out)
buf_type = V4L2_BUF_TYPE_SLICED_VBI_OUTPUT;
q->type = buf_type;
q->io_modes = VB2_MMAP | VB2_DMABUF;
q->io_modes |= V4L2_TYPE_IS_OUTPUT(buf_type) ? VB2_WRITE : VB2_READ;
if (allocators[dev->inst] != 1)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct vivid_buffer);
q->ops = ops;
q->mem_ops = allocators[dev->inst] == 1 ? &vb2_dma_contig_memops :
&vb2_vmalloc_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->min_buffers_needed = min_buffers_needed;
q->lock = &dev->mutex;
q->dev = dev->v4l2_dev.dev;
q->supports_requests = true;
return vb2_queue_init(q);
}
static int vivid_create_instance(struct platform_device *pdev, int inst)
{
static const struct v4l2_dv_timings def_dv_timings =
V4L2_DV_BT_CEA_1280X720P60;
static const struct vb2_mem_ops * const vivid_mem_ops[2] = {
&vb2_vmalloc_memops,
&vb2_dma_contig_memops,
};
unsigned in_type_counter[4] = { 0, 0, 0, 0 };
unsigned out_type_counter[4] = { 0, 0, 0, 0 };
int ccs_cap = ccs_cap_mode[inst];
@ -696,9 +726,7 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
bool has_modulator;
struct vivid_dev *dev;
struct video_device *vfd;
struct vb2_queue *q;
unsigned node_type = node_types[inst];
unsigned int allocator = allocators[inst];
v4l2_std_id tvnorms_cap = 0, tvnorms_out = 0;
int ret;
int i;
@ -793,6 +821,25 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
dev->has_vbi_cap = dev->has_raw_vbi_cap | dev->has_sliced_vbi_cap;
}
/* do we create a meta capture device */
dev->has_meta_cap = node_type & 0x20000;
/* sanity checks */
if ((in_type_counter[WEBCAM] || in_type_counter[HDMI]) &&
!dev->has_vid_cap && !dev->has_meta_cap) {
v4l2_warn(&dev->v4l2_dev,
"Webcam or HDMI input without video or metadata nodes\n");
kfree(dev);
return -EINVAL;
}
if ((in_type_counter[TV] || in_type_counter[SVID]) &&
!dev->has_vid_cap && !dev->has_vbi_cap && !dev->has_meta_cap) {
v4l2_warn(&dev->v4l2_dev,
"TV or S-Video input without video, VBI or metadata nodes\n");
kfree(dev);
return -EINVAL;
}
/* do we create a video output device? */
dev->has_vid_out = node_type & 0x0100;
@ -803,6 +850,24 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
dev->has_vbi_out = dev->has_raw_vbi_out | dev->has_sliced_vbi_out;
}
/* do we create a metadata output device */
dev->has_meta_out = node_type & 0x40000;
/* sanity checks */
if (out_type_counter[SVID] &&
!dev->has_vid_out && !dev->has_vbi_out && !dev->has_meta_out) {
v4l2_warn(&dev->v4l2_dev,
"S-Video output without video, VBI or metadata nodes\n");
kfree(dev);
return -EINVAL;
}
if (out_type_counter[HDMI] && !dev->has_vid_out && !dev->has_meta_out) {
v4l2_warn(&dev->v4l2_dev,
"HDMI output without video or metadata nodes\n");
kfree(dev);
return -EINVAL;
}
/* do we create a radio receiver device? */
dev->has_radio_rx = node_type & 0x0010;
@ -812,6 +877,9 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
/* do we create a software defined radio capture device? */
dev->has_sdr_cap = node_type & 0x0020;
/* do we have a TV tuner? */
dev->has_tv_tuner = in_type_counter[TV];
/* do we have a tuner? */
has_tuner = ((dev->has_vid_cap || dev->has_vbi_cap) && in_type_counter[TV]) ||
dev->has_radio_rx || dev->has_sdr_cap;
@ -853,12 +921,6 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
dev->has_scaler_out ? 'Y' : 'N');
}
/* do we create a meta capture device */
dev->has_meta_cap = node_type & 0x20000;
/* do we create a metadata output device */
dev->has_meta_out = node_type & 0x40000;
/* end detecting feature set */
if (dev->has_vid_cap) {
@ -869,7 +931,7 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
dev->vid_cap_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
if (dev->has_audio_inputs)
dev->vid_cap_caps |= V4L2_CAP_AUDIO;
if (in_type_counter[TV])
if (dev->has_tv_tuner)
dev->vid_cap_caps |= V4L2_CAP_TUNER;
}
if (dev->has_vid_out) {
@ -890,7 +952,7 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
dev->vbi_cap_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
if (dev->has_audio_inputs)
dev->vbi_cap_caps |= V4L2_CAP_AUDIO;
if (in_type_counter[TV])
if (dev->has_tv_tuner)
dev->vbi_cap_caps |= V4L2_CAP_TUNER;
}
if (dev->has_vbi_out) {
@ -922,7 +984,7 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
if (dev->has_audio_inputs)
dev->meta_cap_caps |= V4L2_CAP_AUDIO;
if (in_type_counter[TV])
if (dev->has_tv_tuner)
dev->meta_cap_caps |= V4L2_CAP_TUNER;
}
/* set up the capabilities of meta output device */
@ -1165,126 +1227,69 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
goto unreg_dev;
}
if (allocator == 1)
if (allocators[inst] == 1)
dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
else if (allocator >= ARRAY_SIZE(vivid_mem_ops))
allocator = 0;
/* start creating the vb2 queues */
if (dev->has_vid_cap) {
snprintf(dev->vid_cap_dev.name, sizeof(dev->vid_cap_dev.name),
"vivid-%03d-vid-cap", inst);
/* initialize vid_cap queue */
q = &dev->vb_vid_cap_q;
q->type = dev->multiplanar ? V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
if (!allocator)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct vivid_buffer);
q->ops = &vivid_vid_cap_qops;
q->mem_ops = vivid_mem_ops[allocator];
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->min_buffers_needed = 2;
q->lock = &dev->mutex;
q->dev = dev->v4l2_dev.dev;
q->supports_requests = true;
ret = vb2_queue_init(q);
ret = vivid_create_queue(dev, &dev->vb_vid_cap_q,
V4L2_BUF_TYPE_VIDEO_CAPTURE, 2,
&vivid_vid_cap_qops);
if (ret)
goto unreg_dev;
}
if (dev->has_vid_out) {
snprintf(dev->vid_out_dev.name, sizeof(dev->vid_out_dev.name),
"vivid-%03d-vid-out", inst);
/* initialize vid_out queue */
q = &dev->vb_vid_out_q;
q->type = dev->multiplanar ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
V4L2_BUF_TYPE_VIDEO_OUTPUT;
q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_WRITE;
if (!allocator)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct vivid_buffer);
q->ops = &vivid_vid_out_qops;
q->mem_ops = vivid_mem_ops[allocator];
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->min_buffers_needed = 2;
q->lock = &dev->mutex;
q->dev = dev->v4l2_dev.dev;
q->supports_requests = true;
ret = vb2_queue_init(q);
ret = vivid_create_queue(dev, &dev->vb_vid_out_q,
V4L2_BUF_TYPE_VIDEO_OUTPUT, 2,
&vivid_vid_out_qops);
if (ret)
goto unreg_dev;
}
if (dev->has_vbi_cap) {
/* initialize vbi_cap queue */
q = &dev->vb_vbi_cap_q;
q->type = dev->has_raw_vbi_cap ? V4L2_BUF_TYPE_VBI_CAPTURE :
V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
if (!allocator)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct vivid_buffer);
q->ops = &vivid_vbi_cap_qops;
q->mem_ops = vivid_mem_ops[allocator];
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->min_buffers_needed = 2;
q->lock = &dev->mutex;
q->dev = dev->v4l2_dev.dev;
q->supports_requests = true;
ret = vb2_queue_init(q);
ret = vivid_create_queue(dev, &dev->vb_vbi_cap_q,
V4L2_BUF_TYPE_VBI_CAPTURE, 2,
&vivid_vbi_cap_qops);
if (ret)
goto unreg_dev;
}
if (dev->has_vbi_out) {
/* initialize vbi_out queue */
q = &dev->vb_vbi_out_q;
q->type = dev->has_raw_vbi_out ? V4L2_BUF_TYPE_VBI_OUTPUT :
V4L2_BUF_TYPE_SLICED_VBI_OUTPUT;
q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_WRITE;
if (!allocator)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct vivid_buffer);
q->ops = &vivid_vbi_out_qops;
q->mem_ops = vivid_mem_ops[allocator];
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->min_buffers_needed = 2;
q->lock = &dev->mutex;
q->dev = dev->v4l2_dev.dev;
q->supports_requests = true;
ret = vb2_queue_init(q);
ret = vivid_create_queue(dev, &dev->vb_vbi_out_q,
V4L2_BUF_TYPE_VBI_OUTPUT, 2,
&vivid_vbi_out_qops);
if (ret)
goto unreg_dev;
}
if (dev->has_sdr_cap) {
/* initialize sdr_cap queue */
q = &dev->vb_sdr_cap_q;
q->type = V4L2_BUF_TYPE_SDR_CAPTURE;
q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
if (!allocator)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct vivid_buffer);
q->ops = &vivid_sdr_cap_qops;
q->mem_ops = vivid_mem_ops[allocator];
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->min_buffers_needed = 8;
q->lock = &dev->mutex;
q->dev = dev->v4l2_dev.dev;
q->supports_requests = true;
ret = vivid_create_queue(dev, &dev->vb_sdr_cap_q,
V4L2_BUF_TYPE_SDR_CAPTURE, 8,
&vivid_sdr_cap_qops);
if (ret)
goto unreg_dev;
}
ret = vb2_queue_init(q);
if (dev->has_meta_cap) {
/* initialize meta_cap queue */
ret = vivid_create_queue(dev, &dev->vb_meta_cap_q,
V4L2_BUF_TYPE_META_CAPTURE, 2,
&vivid_meta_cap_qops);
if (ret)
goto unreg_dev;
}
if (dev->has_meta_out) {
/* initialize meta_out queue */
ret = vivid_create_queue(dev, &dev->vb_meta_out_q,
V4L2_BUF_TYPE_META_OUTPUT, 1,
&vivid_meta_out_qops);
if (ret)
goto unreg_dev;
}
@ -1295,49 +1300,7 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
if (ret)
goto unreg_dev;
v4l2_info(&dev->v4l2_dev, "Framebuffer device registered as fb%d\n",
dev->fb_info.node);
}
if (dev->has_meta_cap) {
/* initialize meta_cap queue */
q = &dev->vb_meta_cap_q;
q->type = V4L2_BUF_TYPE_META_CAPTURE;
q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
if (!allocator)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct vivid_buffer);
q->ops = &vivid_meta_cap_qops;
q->mem_ops = vivid_mem_ops[allocator];
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->min_buffers_needed = 2;
q->lock = &dev->mutex;
q->dev = dev->v4l2_dev.dev;
q->supports_requests = true;
ret = vb2_queue_init(q);
if (ret)
goto unreg_dev;
}
if (dev->has_meta_out) {
/* initialize meta_out queue */
q = &dev->vb_meta_out_q;
q->type = V4L2_BUF_TYPE_META_OUTPUT;
q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_WRITE;
if (!allocator)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct vivid_buffer);
q->ops = &vivid_meta_out_qops;
q->mem_ops = vivid_mem_ops[allocator];
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->min_buffers_needed = 1;
q->lock = &dev->mutex;
q->dev = dev->v4l2_dev.dev;
q->supports_requests = true;
ret = vb2_queue_init(q);
if (ret)
goto unreg_dev;
dev->fb_info.node);
}
#ifdef CONFIG_VIDEO_VIVID_CEC
@ -1386,6 +1349,8 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
/* finally start creating the device nodes */
if (dev->has_vid_cap) {
vfd = &dev->vid_cap_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-vid-cap", inst);
vfd->fops = &vivid_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->vid_cap_caps;
@ -1431,6 +1396,8 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
if (dev->has_vid_out) {
vfd = &dev->vid_out_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-vid-out", inst);
vfd->vfl_dir = VFL_DIR_TX;
vfd->fops = &vivid_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;

1
drivers/media/platform/vivid/vivid-core.h
View File

@ -200,6 +200,7 @@ struct vivid_dev {
bool has_fb;
bool has_meta_cap;
bool has_meta_out;
bool has_tv_tuner;
bool can_loop_video;