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WSL2-Linux-Kernel
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[media] zoran: use standard core lock 

Use the standard core lock to take care of serializing ioctl calls and
to serialize file operations.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-07-20 10:18:20 -03:00 коммит произвёл Mauro Carvalho Chehab
Родитель 8148802f18
Коммит 7b962d43ef
3 изменённых файлов: 60 добавлений и 198 удалений
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3
drivers/media/pci/zoran/zoran.h
Просмотреть файл

@ -280,8 +280,7 @@ struct zoran {
struct videocodec *codec; /* video codec */
struct videocodec *vfe; /* video front end */
struct mutex resource_lock; /* prevent evil stuff */
struct mutex other_lock; /* please merge with above */
struct mutex lock; /* file ops serialize lock */
u8 initialized; /* flag if zoran has been correctly initialized */
int user; /* number of current users */

6
drivers/media/pci/zoran/zoran_card.c
Просмотреть файл

@ -1049,8 +1049,9 @@ static int zr36057_init (struct zoran *zr)
/*
* Now add the template and register the device unit.
*/
memcpy(zr->video_dev, &zoran_template, sizeof(zoran_template));
*zr->video_dev = zoran_template;
zr->video_dev->v4l2_dev = &zr->v4l2_dev;
zr->video_dev->lock = &zr->lock;
strcpy(zr->video_dev->name, ZR_DEVNAME(zr));
/* It's not a mem2mem device, but you can both capture and output from
one and the same device. This should really be split up into two
@ -1220,8 +1221,7 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
zr->id = nr;
snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%u]", zr->id);
spin_lock_init(&zr->spinlock);
mutex_init(&zr->resource_lock);
mutex_init(&zr->other_lock);
mutex_init(&zr->lock);
if (pci_enable_device(pdev))
goto zr_unreg;
zr->revision = zr->pci_dev->revision;

249
drivers/media/pci/zoran/zoran_driver.c
Просмотреть файл

@ -592,10 +592,14 @@ static int v4l_sync(struct zoran_fh *fh, int frame)
return -EPROTO;
}
mutex_unlock(&zr->lock);
/* wait on this buffer to get ready */
if (!wait_event_interruptible_timeout(zr->v4l_capq,
(zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ))
(zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ)) {
mutex_lock(&zr->lock);
return -ETIME;
}
mutex_lock(&zr->lock);
if (signal_pending(current))
return -ERESTARTSYS;
@ -783,6 +787,7 @@ static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
mutex_unlock(&zr->lock);
if (!wait_event_interruptible_timeout(zr->jpg_capq,
(zr->jpg_que_tail != zr->jpg_dma_tail ||
zr->jpg_dma_tail == zr->jpg_dma_head),
@ -793,6 +798,7 @@ static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
udelay(1);
zr->codec->control(zr->codec, CODEC_G_STATUS,
sizeof(isr), &isr);
mutex_lock(&zr->lock);
dprintk(1,
KERN_ERR
"%s: %s - timeout: codec isr=0x%02x\n",
@ -801,6 +807,7 @@ static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
return -ETIME;
}
mutex_lock(&zr->lock);
if (signal_pending(current))
return -ERESTARTSYS;
@ -911,7 +918,7 @@ static int zoran_open(struct file *file)
dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
mutex_lock(&zr->other_lock);
mutex_lock(&zr->lock);
if (zr->user >= 2048) {
dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
@ -946,8 +953,6 @@ static int zoran_open(struct file *file)
if (zr->user++ == 0)
first_open = 1;
/*mutex_unlock(&zr->resource_lock);*/
/* default setup - TODO: look at flags */
if (first_open) { /* First device open */
zr36057_restart(zr);
@ -961,14 +966,14 @@ static int zoran_open(struct file *file)
file->private_data = fh;
fh->zr = zr;
zoran_open_init_session(fh);
mutex_unlock(&zr->other_lock);
mutex_unlock(&zr->lock);
return 0;
fail_fh:
kfree(fh);
fail_unlock:
mutex_unlock(&zr->other_lock);
mutex_unlock(&zr->lock);
dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
ZR_DEVNAME(zr), res, zr->user);
@ -987,7 +992,7 @@ zoran_close(struct file *file)
/* kernel locks (fs/device.c), so don't do that ourselves
* (prevents deadlocks) */
mutex_lock(&zr->other_lock);
mutex_lock(&zr->lock);
zoran_close_end_session(fh);
@ -1021,9 +1026,8 @@ zoran_close(struct file *file)
encoder_call(zr, video, s_routing, 2, 0, 0);
}
}
mutex_unlock(&zr->other_lock);
mutex_unlock(&zr->lock);
file->private_data = NULL;
kfree(fh->overlay_mask);
kfree(fh);
@ -1559,9 +1563,6 @@ static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
mutex_lock(&zr->resource_lock);
fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
@ -1577,7 +1578,6 @@ static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
fmt->fmt.pix.bytesperline = 0;
fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -1590,7 +1590,6 @@ static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
if (fh->map_mode != ZORAN_MAP_MODE_RAW)
return zoran_g_fmt_vid_out(file, fh, fmt);
mutex_lock(&zr->resource_lock);
fmt->fmt.pix.width = fh->v4l_settings.width;
fmt->fmt.pix.height = fh->v4l_settings.height;
fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
@ -1602,7 +1601,6 @@ static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
else
fmt->fmt.pix.field = V4L2_FIELD_TOP;
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -1612,8 +1610,6 @@ static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
mutex_lock(&zr->resource_lock);
fmt->fmt.win.w.left = fh->overlay_settings.x;
fmt->fmt.win.w.top = fh->overlay_settings.y;
fmt->fmt.win.w.width = fh->overlay_settings.width;
@ -1623,7 +1619,6 @@ static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
else
fmt->fmt.win.field = V4L2_FIELD_TOP;
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -1633,8 +1628,6 @@ static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
mutex_lock(&zr->resource_lock);
if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
@ -1644,7 +1637,6 @@ static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -1659,7 +1651,6 @@ static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
return -EINVAL;
mutex_lock(&zr->resource_lock);
settings = fh->jpg_settings;
/* we actually need to set 'real' parameters now */
@ -1694,7 +1685,7 @@ static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
/* check */
res = zoran_check_jpg_settings(zr, &settings, 1);
if (res)
goto tryfmt_unlock_and_return;
return res;
/* tell the user what we actually did */
fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
@ -1710,8 +1701,6 @@ static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
fmt->fmt.pix.bytesperline = 0;
fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
tryfmt_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -1726,23 +1715,17 @@ static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
return zoran_try_fmt_vid_out(file, fh, fmt);
mutex_lock(&zr->resource_lock);
for (i = 0; i < NUM_FORMATS; i++)
if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
break;
if (i == NUM_FORMATS) {
mutex_unlock(&zr->resource_lock);
if (i == NUM_FORMATS)
return -EINVAL;
}
bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
v4l_bound_align_image(
&fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2,
&fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0);
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -1750,7 +1733,6 @@ static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int res;
dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
@ -1759,12 +1741,10 @@ static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
fmt->fmt.win.w.height,
fmt->fmt.win.clipcount,
fmt->fmt.win.bitmap);
mutex_lock(&zr->resource_lock);
res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
fmt->fmt.win.w.width, fmt->fmt.win.w.height,
(struct v4l2_clip __user *)fmt->fmt.win.clips,
fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
mutex_unlock(&zr->resource_lock);
return res;
}
@ -1784,13 +1764,11 @@ static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
return -EINVAL;
mutex_lock(&zr->resource_lock);
if (fh->buffers.allocated) {
dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
ZR_DEVNAME(zr));
res = -EBUSY;
goto sfmtjpg_unlock_and_return;
return res;
}
settings = fh->jpg_settings;
@ -1827,7 +1805,7 @@ static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
/* check */
res = zoran_check_jpg_settings(zr, &settings, 0);
if (res)
goto sfmtjpg_unlock_and_return;
return res;
/* it's ok, so set them */
fh->jpg_settings = settings;
@ -1848,9 +1826,6 @@ static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
fmt->fmt.pix.bytesperline = 0;
fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
sfmtjpg_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -1874,14 +1849,12 @@ static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
return -EINVAL;
}
mutex_lock(&zr->resource_lock);
if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
fh->buffers.active != ZORAN_FREE) {
dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
ZR_DEVNAME(zr));
res = -EBUSY;
goto sfmtv4l_unlock_and_return;
return res;
}
if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
@ -1893,7 +1866,7 @@ static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
&zoran_formats[i]);
if (res)
goto sfmtv4l_unlock_and_return;
return res;
/* tell the user the results/missing stuff */
fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
@ -1903,9 +1876,6 @@ static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
else
fmt->fmt.pix.field = V4L2_FIELD_TOP;
sfmtv4l_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -1916,14 +1886,12 @@ static int zoran_g_fbuf(struct file *file, void *__fh,
struct zoran *zr = fh->zr;
memset(fb, 0, sizeof(*fb));
mutex_lock(&zr->resource_lock);
fb->base = zr->vbuf_base;
fb->fmt.width = zr->vbuf_width;
fb->fmt.height = zr->vbuf_height;
if (zr->overlay_settings.format)
fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
fb->fmt.bytesperline = zr->vbuf_bytesperline;
mutex_unlock(&zr->resource_lock);
fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
fb->fmt.field = V4L2_FIELD_INTERLACED;
fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
@ -1949,10 +1917,8 @@ static int zoran_s_fbuf(struct file *file, void *__fh,
return -EINVAL;
}
mutex_lock(&zr->resource_lock);
res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
fb->fmt.height, fb->fmt.bytesperline);
mutex_unlock(&zr->resource_lock);
return res;
}
@ -1960,12 +1926,9 @@ static int zoran_s_fbuf(struct file *file, void *__fh,
static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int res;
mutex_lock(&zr->resource_lock);
res = setup_overlay(fh, on);
mutex_unlock(&zr->resource_lock);
return res;
}
@ -1989,14 +1952,13 @@ static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffe
if (req->count == 0)
return zoran_streamoff(file, fh, req->type);
mutex_lock(&zr->resource_lock);
if (fh->buffers.allocated) {
dprintk(2,
KERN_ERR
"%s: VIDIOC_REQBUFS - buffers already allocated\n",
ZR_DEVNAME(zr));
res = -EBUSY;
goto v4l2reqbuf_unlock_and_return;
return res;
}
if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
@ -2013,7 +1975,7 @@ static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffe
if (v4l_fbuffer_alloc(fh)) {
res = -ENOMEM;
goto v4l2reqbuf_unlock_and_return;
return res;
}
} else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
@ -2030,7 +1992,7 @@ static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffe
if (jpg_fbuffer_alloc(fh)) {
res = -ENOMEM;
goto v4l2reqbuf_unlock_and_return;
return res;
}
} else {
dprintk(1,
@ -2038,23 +2000,17 @@ static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffe
"%s: VIDIOC_REQBUFS - unknown type %d\n",
ZR_DEVNAME(zr), req->type);
res = -EINVAL;
goto v4l2reqbuf_unlock_and_return;
return res;
}
v4l2reqbuf_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int res;
mutex_lock(&zr->resource_lock);
res = zoran_v4l2_buffer_status(fh, buf, buf->index);
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2065,8 +2021,6 @@ static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
struct zoran *zr = fh->zr;
int res = 0, codec_mode, buf_type;
mutex_lock(&zr->resource_lock);
switch (fh->map_mode) {
case ZORAN_MAP_MODE_RAW:
if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
@ -2074,12 +2028,12 @@ static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
"%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
ZR_DEVNAME(zr), buf->type, fh->map_mode);
res = -EINVAL;
goto qbuf_unlock_and_return;
return res;
}
res = zoran_v4l_queue_frame(fh, buf->index);
if (res)
goto qbuf_unlock_and_return;
return res;
if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED)
zr36057_set_memgrab(zr, 1);
break;
@ -2099,12 +2053,12 @@ static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
"%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
ZR_DEVNAME(zr), buf->type, fh->map_mode);
res = -EINVAL;
goto qbuf_unlock_and_return;
return res;
}
res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
if (res != 0)
goto qbuf_unlock_and_return;
return res;
if (zr->codec_mode == BUZ_MODE_IDLE &&
fh->buffers.active == ZORAN_LOCKED)
zr36057_enable_jpg(zr, codec_mode);
@ -2118,9 +2072,6 @@ static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
res = -EINVAL;
break;
}
qbuf_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2130,8 +2081,6 @@ static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
struct zoran *zr = fh->zr;
int res = 0, buf_type, num = -1; /* compiler borks here (?) */
mutex_lock(&zr->resource_lock);
switch (fh->map_mode) {
case ZORAN_MAP_MODE_RAW:
if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
@ -2139,18 +2088,18 @@ static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
"%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
ZR_DEVNAME(zr), buf->type, fh->map_mode);
res = -EINVAL;
goto dqbuf_unlock_and_return;
return res;
}
num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
if (file->f_flags & O_NONBLOCK &&
zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) {
res = -EAGAIN;
goto dqbuf_unlock_and_return;
return res;
}
res = v4l_sync(fh, num);
if (res)
goto dqbuf_unlock_and_return;
return res;
zr->v4l_sync_tail++;
res = zoran_v4l2_buffer_status(fh, buf, num);
break;
@ -2170,7 +2119,7 @@ static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
"%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
ZR_DEVNAME(zr), buf->type, fh->map_mode);
res = -EINVAL;
goto dqbuf_unlock_and_return;
return res;
}
num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
@ -2178,12 +2127,12 @@ static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
if (file->f_flags & O_NONBLOCK &&
zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) {
res = -EAGAIN;
goto dqbuf_unlock_and_return;
return res;
}
bs.frame = 0; /* suppress compiler warning */
res = jpg_sync(fh, &bs);
if (res)
goto dqbuf_unlock_and_return;
return res;
res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
break;
}
@ -2195,9 +2144,6 @@ static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
res = -EINVAL;
break;
}
dqbuf_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2207,14 +2153,12 @@ static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type
struct zoran *zr = fh->zr;
int res = 0;
mutex_lock(&zr->resource_lock);
switch (fh->map_mode) {
case ZORAN_MAP_MODE_RAW: /* raw capture */
if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
fh->buffers.active != ZORAN_ACTIVE) {
res = -EBUSY;
goto strmon_unlock_and_return;
return res;
}
zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED;
@ -2233,7 +2177,7 @@ static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type
if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
fh->buffers.active != ZORAN_ACTIVE) {
res = -EBUSY;
goto strmon_unlock_and_return;
return res;
}
zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED;
@ -2252,9 +2196,6 @@ static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type
res = -EINVAL;
break;
}
strmon_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2265,17 +2206,15 @@ static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type typ
int i, res = 0;
unsigned long flags;
mutex_lock(&zr->resource_lock);
switch (fh->map_mode) {
case ZORAN_MAP_MODE_RAW: /* raw capture */
if (fh->buffers.active == ZORAN_FREE &&
zr->v4l_buffers.active != ZORAN_FREE) {
res = -EPERM; /* stay off other's settings! */
goto strmoff_unlock_and_return;
return res;
}
if (zr->v4l_buffers.active == ZORAN_FREE)
goto strmoff_unlock_and_return;
return res;
spin_lock_irqsave(&zr->spinlock, flags);
/* unload capture */
@ -2303,17 +2242,17 @@ static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type typ
if (fh->buffers.active == ZORAN_FREE &&
zr->jpg_buffers.active != ZORAN_FREE) {
res = -EPERM; /* stay off other's settings! */
goto strmoff_unlock_and_return;
return res;
}
if (zr->jpg_buffers.active == ZORAN_FREE)
goto strmoff_unlock_and_return;
return res;
res = jpg_qbuf(fh, -1,
(fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
BUZ_MODE_MOTION_COMPRESS :
BUZ_MODE_MOTION_DECOMPRESS);
if (res)
goto strmoff_unlock_and_return;
return res;
break;
default:
dprintk(1, KERN_ERR
@ -2322,9 +2261,6 @@ static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type typ
res = -EINVAL;
break;
}
strmoff_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2354,9 +2290,7 @@ static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl
ctrl->id > V4L2_CID_HUE)
return -EINVAL;
mutex_lock(&zr->resource_lock);
decoder_call(zr, core, g_ctrl, ctrl);
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -2371,9 +2305,7 @@ static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl
ctrl->id > V4L2_CID_HUE)
return -EINVAL;
mutex_lock(&zr->resource_lock);
decoder_call(zr, core, s_ctrl, ctrl);
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -2383,9 +2315,7 @@ static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
mutex_lock(&zr->resource_lock);
*std = zr->norm;
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -2395,14 +2325,11 @@ static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std)
struct zoran *zr = fh->zr;
int res = 0;
mutex_lock(&zr->resource_lock);
res = zoran_set_norm(zr, std);
if (res)
goto sstd_unlock_and_return;
return res;
res = wait_grab_pending(zr);
sstd_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2421,9 +2348,7 @@ static int zoran_enum_input(struct file *file, void *__fh,
inp->std = V4L2_STD_ALL;
/* Get status of video decoder */
mutex_lock(&zr->resource_lock);
decoder_call(zr, video, g_input_status, &inp->status);
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -2432,9 +2357,7 @@ static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
mutex_lock(&zr->resource_lock);
*input = zr->input;
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -2445,15 +2368,12 @@ static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
struct zoran *zr = fh->zr;
int res;
mutex_lock(&zr->resource_lock);
res = zoran_set_input(zr, input);
if (res)
goto sinput_unlock_and_return;
return res;
/* Make sure the changes come into effect */
res = wait_grab_pending(zr);
sinput_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2496,8 +2416,6 @@ static int zoran_cropcap(struct file *file, void *__fh,
memset(cropcap, 0, sizeof(*cropcap));
cropcap->type = type;
mutex_lock(&zr->resource_lock);
if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
(cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
fh->map_mode == ZORAN_MAP_MODE_RAW)) {
@ -2505,7 +2423,7 @@ static int zoran_cropcap(struct file *file, void *__fh,
"%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
ZR_DEVNAME(zr));
res = -EINVAL;
goto cropcap_unlock_and_return;
return res;
}
cropcap->bounds.top = cropcap->bounds.left = 0;
@ -2514,8 +2432,6 @@ static int zoran_cropcap(struct file *file, void *__fh,
cropcap->defrect.top = cropcap->defrect.left = 0;
cropcap->defrect.width = BUZ_MIN_WIDTH;
cropcap->defrect.height = BUZ_MIN_HEIGHT;
cropcap_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2528,8 +2444,6 @@ static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
memset(crop, 0, sizeof(*crop));
crop->type = type;
mutex_lock(&zr->resource_lock);
if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
(crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
fh->map_mode == ZORAN_MAP_MODE_RAW)) {
@ -2538,17 +2452,13 @@ static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
"%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
ZR_DEVNAME(zr));
res = -EINVAL;
goto gcrop_unlock_and_return;
return res;
}
crop->c.top = fh->jpg_settings.img_y;
crop->c.left = fh->jpg_settings.img_x;
crop->c.width = fh->jpg_settings.img_width;
crop->c.height = fh->jpg_settings.img_height;
gcrop_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2561,14 +2471,12 @@ static int zoran_s_crop(struct file *file, void *__fh, const struct v4l2_crop *c
settings = fh->jpg_settings;
mutex_lock(&zr->resource_lock);
if (fh->buffers.allocated) {
dprintk(1, KERN_ERR
"%s: VIDIOC_S_CROP - cannot change settings while active\n",
ZR_DEVNAME(zr));
res = -EBUSY;
goto scrop_unlock_and_return;
return res;
}
if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
@ -2578,7 +2486,7 @@ static int zoran_s_crop(struct file *file, void *__fh, const struct v4l2_crop *c
"%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
ZR_DEVNAME(zr));
res = -EINVAL;
goto scrop_unlock_and_return;
return res;
}
/* move into a form that we understand */
@ -2590,13 +2498,10 @@ static int zoran_s_crop(struct file *file, void *__fh, const struct v4l2_crop *c
/* check validity */
res = zoran_check_jpg_settings(zr, &settings, 0);
if (res)
goto scrop_unlock_and_return;
return res;
/* accept */
fh->jpg_settings = settings;
scrop_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2604,11 +2509,8 @@ static int zoran_g_jpegcomp(struct file *file, void *__fh,
struct v4l2_jpegcompression *params)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
memset(params, 0, sizeof(*params));
mutex_lock(&zr->resource_lock);
params->quality = fh->jpg_settings.jpg_comp.quality;
params->APPn = fh->jpg_settings.jpg_comp.APPn;
memcpy(params->APP_data,
@ -2622,8 +2524,6 @@ static int zoran_g_jpegcomp(struct file *file, void *__fh,
params->jpeg_markers =
fh->jpg_settings.jpg_comp.jpeg_markers;
mutex_unlock(&zr->resource_lock);
return 0;
}
@ -2639,26 +2539,21 @@ static int zoran_s_jpegcomp(struct file *file, void *__fh,
settings.jpg_comp = *params;
mutex_lock(&zr->resource_lock);
if (fh->buffers.active != ZORAN_FREE) {
dprintk(1, KERN_WARNING
"%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
ZR_DEVNAME(zr));
res = -EBUSY;
goto sjpegc_unlock_and_return;
return res;
}
res = zoran_check_jpg_settings(zr, &settings, 0);
if (res)
goto sjpegc_unlock_and_return;
return res;
if (!fh->buffers.allocated)
fh->buffers.buffer_size =
zoran_v4l2_calc_bufsize(&fh->jpg_settings);
fh->jpg_settings.jpg_comp = settings.jpg_comp;
sjpegc_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2679,8 +2574,6 @@ zoran_poll (struct file *file,
* if no buffers queued or so, return POLLNVAL
*/
mutex_lock(&zr->resource_lock);
switch (fh->map_mode) {
case ZORAN_MAP_MODE_RAW:
poll_wait(file, &zr->v4l_capq, wait);
@ -2735,8 +2628,6 @@ zoran_poll (struct file *file,
res = POLLNVAL;
}
mutex_unlock(&zr->resource_lock);
return res;
}
@ -2768,9 +2659,6 @@ zoran_vm_close (struct vm_area_struct *vma)
struct zoran *zr = fh->zr;
int i;
if (!atomic_dec_and_mutex_lock(&map->count, &zr->resource_lock))
return;
dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
__func__, mode_name(fh->map_mode));
@ -2783,7 +2671,6 @@ zoran_vm_close (struct vm_area_struct *vma)
/* Any buffers still mapped? */
for (i = 0; i < fh->buffers.num_buffers; i++) {
if (fh->buffers.buffer[i].map) {
mutex_unlock(&zr->resource_lock);
return;
}
}
@ -2791,7 +2678,6 @@ zoran_vm_close (struct vm_area_struct *vma)
dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
__func__, mode_name(fh->map_mode));
if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
if (fh->buffers.active != ZORAN_FREE) {
unsigned long flags;
@ -2811,8 +2697,6 @@ zoran_vm_close (struct vm_area_struct *vma)
}
jpg_fbuffer_free(fh);
}
mutex_unlock(&zr->resource_lock);
}
static const struct vm_operations_struct zoran_vm_ops = {
@ -2848,15 +2732,13 @@ zoran_mmap (struct file *file,
return -EINVAL;
}
mutex_lock(&zr->resource_lock);
if (!fh->buffers.allocated) {
dprintk(1,
KERN_ERR
"%s: %s(%s) - buffers not yet allocated\n",
ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
res = -ENOMEM;
goto mmap_unlock_and_return;
return res;
}
first = offset / fh->buffers.buffer_size;
@ -2872,7 +2754,7 @@ zoran_mmap (struct file *file,
fh->buffers.buffer_size,
fh->buffers.num_buffers);
res = -EINVAL;
goto mmap_unlock_and_return;
return res;
}
/* Check if any buffers are already mapped */
@ -2883,7 +2765,7 @@ zoran_mmap (struct file *file,
"%s: %s(%s) - buffer %d already mapped\n",
ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
res = -EBUSY;
goto mmap_unlock_and_return;
return res;
}
}
@ -2891,7 +2773,7 @@ zoran_mmap (struct file *file,
map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
if (!map) {
res = -ENOMEM;
goto mmap_unlock_and_return;
return res;
}
map->fh = fh;
atomic_set(&map->count, 1);
@ -2913,7 +2795,7 @@ zoran_mmap (struct file *file,
"%s: %s(V4L) - remap_pfn_range failed\n",
ZR_DEVNAME(zr), __func__);
res = -EAGAIN;
goto mmap_unlock_and_return;
return res;
}
size -= todo;
start += todo;
@ -2945,7 +2827,7 @@ zoran_mmap (struct file *file,
"%s: %s(V4L) - remap_pfn_range failed\n",
ZR_DEVNAME(zr), __func__);
res = -EAGAIN;
goto mmap_unlock_and_return;
return res;
}
size -= todo;
start += todo;
@ -2961,10 +2843,6 @@ zoran_mmap (struct file *file,
}
}
mmap_unlock_and_return:
mutex_unlock(&zr->resource_lock);
return res;
}
@ -3009,26 +2887,11 @@ static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
.vidioc_g_ctrl = zoran_g_ctrl,
};
/* please use zr->resource_lock consistently and kill this wrapper */
static long zoran_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
int ret;
mutex_lock(&zr->other_lock);
ret = video_ioctl2(file, cmd, arg);
mutex_unlock(&zr->other_lock);
return ret;
}
static const struct v4l2_file_operations zoran_fops = {
.owner = THIS_MODULE,
.open = zoran_open,
.release = zoran_close,
.unlocked_ioctl = zoran_ioctl,
.unlocked_ioctl = video_ioctl2,
.mmap = zoran_mmap,
.poll = zoran_poll,
};