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path: root/drivers/media/usb/em28xx/em28xx-video.c
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Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-video.c')
-rw-r--r--drivers/media/usb/em28xx/em28xx-video.c415
1 files changed, 250 insertions, 165 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index 32bd7de5dec1..32d60e5546bc 100644
--- a/drivers/media/usb/em28xx/em28xx-video.c
+++ b/drivers/media/usb/em28xx/em28xx-video.c
@@ -52,7 +52,7 @@
#define DRIVER_DESC "Empia em28xx based USB video device driver"
-#define EM28XX_VERSION "0.1.3"
+#define EM28XX_VERSION "0.2.0"
#define em28xx_videodbg(fmt, arg...) do {\
if (video_debug) \
@@ -76,6 +76,16 @@ MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_VERSION(EM28XX_VERSION);
+
+#define EM25XX_FRMDATAHDR_BYTE1 0x02
+#define EM25XX_FRMDATAHDR_BYTE2_STILL_IMAGE 0x20
+#define EM25XX_FRMDATAHDR_BYTE2_FRAME_END 0x02
+#define EM25XX_FRMDATAHDR_BYTE2_FRAME_ID 0x01
+#define EM25XX_FRMDATAHDR_BYTE2_MASK (EM25XX_FRMDATAHDR_BYTE2_STILL_IMAGE | \
+ EM25XX_FRMDATAHDR_BYTE2_FRAME_END | \
+ EM25XX_FRMDATAHDR_BYTE2_FRAME_ID)
+
+
static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U };
static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U };
static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U };
@@ -408,6 +418,62 @@ static inline void process_frame_data_em28xx(struct em28xx *dev,
em28xx_copy_video(dev, buf, data_pkt, data_len);
}
+/*
+ * Process data packet according to the em25xx/em276x/7x/8x frame data format
+ */
+static inline void process_frame_data_em25xx(struct em28xx *dev,
+ unsigned char *data_pkt,
+ unsigned int data_len)
+{
+ struct em28xx_buffer *buf = dev->usb_ctl.vid_buf;
+ struct em28xx_dmaqueue *dmaq = &dev->vidq;
+ bool frame_end = 0;
+
+ /* Check for header */
+ /* NOTE: at least with bulk transfers, only the first packet
+ * has a header and has always set the FRAME_END bit */
+ if (data_len >= 2) { /* em25xx header is only 2 bytes long */
+ if ((data_pkt[0] == EM25XX_FRMDATAHDR_BYTE1) &&
+ ((data_pkt[1] & ~EM25XX_FRMDATAHDR_BYTE2_MASK) == 0x00)) {
+ dev->top_field = !(data_pkt[1] &
+ EM25XX_FRMDATAHDR_BYTE2_FRAME_ID);
+ frame_end = data_pkt[1] &
+ EM25XX_FRMDATAHDR_BYTE2_FRAME_END;
+ data_pkt += 2;
+ data_len -= 2;
+ }
+
+ /* Finish field and prepare next (BULK only) */
+ if (dev->analog_xfer_bulk && frame_end) {
+ buf = finish_field_prepare_next(dev, buf, dmaq);
+ dev->usb_ctl.vid_buf = buf;
+ }
+ /* NOTE: in ISOC mode when a new frame starts and buf==NULL,
+ * we COULD already prepare a buffer here to avoid skipping the
+ * first frame.
+ */
+ }
+
+ /* Copy data */
+ if (buf != NULL && data_len > 0)
+ em28xx_copy_video(dev, buf, data_pkt, data_len);
+
+ /* Finish frame (ISOC only) => avoids lag of 1 frame */
+ if (!dev->analog_xfer_bulk && frame_end) {
+ buf = finish_field_prepare_next(dev, buf, dmaq);
+ dev->usb_ctl.vid_buf = buf;
+ }
+
+ /* NOTE: Tested with USB bulk transfers only !
+ * The wording in the datasheet suggests that isoc might work different.
+ * The current code assumes that with isoc transfers each packet has a
+ * header like with the other em28xx devices.
+ */
+ /* NOTE: Support for interlaced mode is pure theory. It has not been
+ * tested and it is unknown if these devices actually support it. */
+ /* NOTE: No VBI support yet (these chips likely do not support VBI). */
+}
+
/* Processes and copies the URB data content (video and VBI data) */
static inline int em28xx_urb_data_copy(struct em28xx *dev, struct urb *urb)
{
@@ -460,7 +526,13 @@ static inline int em28xx_urb_data_copy(struct em28xx *dev, struct urb *urb)
continue;
}
- process_frame_data_em28xx(dev, usb_data_pkt, usb_data_len);
+ if (dev->is_em25xx)
+ process_frame_data_em25xx(dev,
+ usb_data_pkt, usb_data_len);
+ else
+ process_frame_data_em28xx(dev,
+ usb_data_pkt, usb_data_len);
+
}
return 1;
}
@@ -700,6 +772,7 @@ int em28xx_vb2_setup(struct em28xx *dev)
q = &dev->vb_vidq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+ q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct em28xx_buffer);
q->ops = &em28xx_video_qops;
@@ -713,6 +786,7 @@ int em28xx_vb2_setup(struct em28xx *dev)
q = &dev->vb_vbiq;
q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR;
+ q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct em28xx_buffer);
q->ops = &em28xx_vbi_qops;
@@ -782,33 +856,45 @@ void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv)
static int em28xx_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct em28xx *dev = container_of(ctrl->handler, struct em28xx, ctrl_handler);
+ int ret = -EINVAL;
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
dev->mute = ctrl->val;
+ ret = em28xx_audio_analog_set(dev);
break;
case V4L2_CID_AUDIO_VOLUME:
dev->volume = ctrl->val;
+ ret = em28xx_audio_analog_set(dev);
+ break;
+ case V4L2_CID_CONTRAST:
+ ret = em28xx_write_reg(dev, EM28XX_R20_YGAIN, ctrl->val);
+ break;
+ case V4L2_CID_BRIGHTNESS:
+ ret = em28xx_write_reg(dev, EM28XX_R21_YOFFSET, ctrl->val);
+ break;
+ case V4L2_CID_SATURATION:
+ ret = em28xx_write_reg(dev, EM28XX_R22_UVGAIN, ctrl->val);
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ ret = em28xx_write_reg(dev, EM28XX_R23_UOFFSET, ctrl->val);
+ break;
+ case V4L2_CID_RED_BALANCE:
+ ret = em28xx_write_reg(dev, EM28XX_R24_VOFFSET, ctrl->val);
+ break;
+ case V4L2_CID_SHARPNESS:
+ ret = em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, ctrl->val);
break;
}
- return em28xx_audio_analog_set(dev);
+ return (ret < 0) ? ret : 0;
}
const struct v4l2_ctrl_ops em28xx_ctrl_ops = {
.s_ctrl = em28xx_s_ctrl,
};
-static int check_dev(struct em28xx *dev)
-{
- if (dev->disconnected) {
- em28xx_errdev("v4l2 ioctl: device not present\n");
- return -ENODEV;
- }
- return 0;
-}
-
-static void get_scale(struct em28xx *dev,
+static void size_to_scale(struct em28xx *dev,
unsigned int width, unsigned int height,
unsigned int *hscale, unsigned int *vscale)
{
@@ -816,12 +902,23 @@ static void get_scale(struct em28xx *dev,
unsigned int maxh = norm_maxh(dev);
*hscale = (((unsigned long)maxw) << 12) / width - 4096L;
- if (*hscale >= 0x4000)
- *hscale = 0x3fff;
+ if (*hscale > EM28XX_HVSCALE_MAX)
+ *hscale = EM28XX_HVSCALE_MAX;
*vscale = (((unsigned long)maxh) << 12) / height - 4096L;
- if (*vscale >= 0x4000)
- *vscale = 0x3fff;
+ if (*vscale > EM28XX_HVSCALE_MAX)
+ *vscale = EM28XX_HVSCALE_MAX;
+}
+
+static void scale_to_size(struct em28xx *dev,
+ unsigned int hscale, unsigned int vscale,
+ unsigned int *width, unsigned int *height)
+{
+ unsigned int maxw = norm_maxw(dev);
+ unsigned int maxh = norm_maxh(dev);
+
+ *width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
+ *height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
}
/* ------------------------------------------------------------------
@@ -898,10 +995,8 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1, 0);
}
- get_scale(dev, width, height, &hscale, &vscale);
-
- width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
- height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
+ size_to_scale(dev, width, height, &hscale, &vscale);
+ scale_to_size(dev, hscale, vscale, &width, &height);
f->fmt.pix.width = width;
f->fmt.pix.height = height;
@@ -932,7 +1027,7 @@ static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc,
dev->height = height;
/* set new image size */
- get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
+ size_to_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
em28xx_resolution_set(dev);
@@ -957,13 +1052,6 @@ static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- int rc;
-
- if (dev->board.is_webcam)
- return -ENOTTY;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
*norm = dev->norm;
@@ -974,48 +1062,35 @@ static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm)
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- int rc;
-
- if (dev->board.is_webcam)
- return -ENOTTY;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
v4l2_device_call_all(&dev->v4l2_dev, 0, video, querystd, norm);
return 0;
}
-static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
+static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
struct v4l2_format f;
- int rc;
- if (dev->board.is_webcam)
- return -ENOTTY;
- if (*norm == dev->norm)
+ if (norm == dev->norm)
return 0;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
if (dev->streaming_users > 0)
return -EBUSY;
- dev->norm = *norm;
+ dev->norm = norm;
/* Adjusts width/height, if needed */
f.fmt.pix.width = 720;
- f.fmt.pix.height = (*norm & V4L2_STD_525_60) ? 480 : 576;
+ f.fmt.pix.height = (norm & V4L2_STD_525_60) ? 480 : 576;
vidioc_try_fmt_vid_cap(file, priv, &f);
/* set new image size */
dev->width = f.fmt.pix.width;
dev->height = f.fmt.pix.height;
- get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
+ size_to_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
em28xx_resolution_set(dev);
v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
@@ -1030,9 +1105,6 @@ static int vidioc_g_parm(struct file *file, void *priv,
struct em28xx *dev = fh->dev;
int rc = 0;
- if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
p->parm.capture.readbuffers = EM28XX_MIN_BUF;
if (dev->board.is_webcam)
rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0,
@@ -1050,12 +1122,6 @@ static int vidioc_s_parm(struct file *file, void *priv,
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- if (!dev->board.is_webcam)
- return -ENOTTY;
-
- if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
p->parm.capture.readbuffers = EM28XX_MIN_BUF;
return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p);
}
@@ -1116,11 +1182,6 @@ static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
if (i >= MAX_EM28XX_INPUT)
return -EINVAL;
@@ -1136,9 +1197,6 @@ static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- if (!dev->audio_mode.has_audio)
- return -EINVAL;
-
switch (a->index) {
case EM28XX_AMUX_VIDEO:
strcpy(a->name, "Television");
@@ -1179,10 +1237,6 @@ static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
-
- if (!dev->audio_mode.has_audio)
- return -EINVAL;
-
if (a->index >= MAX_EM28XX_INPUT)
return -EINVAL;
if (0 == INPUT(a->index)->type)
@@ -1202,11 +1256,6 @@ static int vidioc_g_tuner(struct file *file, void *priv,
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
if (0 != t->index)
return -EINVAL;
@@ -1218,15 +1267,10 @@ static int vidioc_g_tuner(struct file *file, void *priv,
}
static int vidioc_s_tuner(struct file *file, void *priv,
- struct v4l2_tuner *t)
+ const struct v4l2_tuner *t)
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
if (0 != t->index)
return -EINVAL;
@@ -1249,39 +1293,22 @@ static int vidioc_g_frequency(struct file *file, void *priv,
}
static int vidioc_s_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
+ const struct v4l2_frequency *f)
{
+ struct v4l2_frequency new_freq = *f;
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
if (0 != f->tuner)
return -EINVAL;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
- dev->ctl_freq = f->frequency;
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
+ dev->ctl_freq = new_freq.frequency;
return 0;
}
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-static int em28xx_reg_len(int reg)
-{
- switch (reg) {
- case EM28XX_R40_AC97LSB:
- case EM28XX_R30_HSCALELOW:
- case EM28XX_R32_VSCALELOW:
- return 2;
- default:
- return 1;
- }
-}
-
static int vidioc_g_chip_ident(struct file *file, void *priv,
struct v4l2_dbg_chip_ident *chip)
{
@@ -1290,9 +1317,9 @@ static int vidioc_g_chip_ident(struct file *file, void *priv,
chip->ident = V4L2_IDENT_NONE;
chip->revision = 0;
- if (chip->match.type == V4L2_CHIP_MATCH_HOST) {
- if (v4l2_chip_match_host(&chip->match))
- chip->ident = V4L2_IDENT_NONE;
+ if (chip->match.type == V4L2_CHIP_MATCH_BRIDGE) {
+ if (chip->match.addr > 1)
+ return -EINVAL;
return 0;
}
if (chip->match.type != V4L2_CHIP_MATCH_I2C_DRIVER &&
@@ -1304,6 +1331,33 @@ static int vidioc_g_chip_ident(struct file *file, void *priv,
return 0;
}
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int vidioc_g_chip_info(struct file *file, void *priv,
+ struct v4l2_dbg_chip_info *chip)
+{
+ struct em28xx_fh *fh = priv;
+ struct em28xx *dev = fh->dev;
+
+ if (chip->match.addr > 1)
+ return -EINVAL;
+ if (chip->match.addr == 1)
+ strlcpy(chip->name, "ac97", sizeof(chip->name));
+ else
+ strlcpy(chip->name, dev->v4l2_dev.name, sizeof(chip->name));
+ return 0;
+}
+
+static int em28xx_reg_len(int reg)
+{
+ switch (reg) {
+ case EM28XX_R40_AC97LSB:
+ case EM28XX_R30_HSCALELOW:
+ case EM28XX_R32_VSCALELOW:
+ return 2;
+ default:
+ return 1;
+ }
+}
static int vidioc_g_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg)
@@ -1313,6 +1367,12 @@ static int vidioc_g_register(struct file *file, void *priv,
int ret;
switch (reg->match.type) {
+ case V4L2_CHIP_MATCH_BRIDGE:
+ if (reg->match.addr > 1)
+ return -EINVAL;
+ if (!reg->match.addr)
+ break;
+ /* fall-through */
case V4L2_CHIP_MATCH_AC97:
ret = em28xx_read_ac97(dev, reg->reg);
if (ret < 0)
@@ -1329,8 +1389,7 @@ static int vidioc_g_register(struct file *file, void *priv,
v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
return 0;
default:
- if (!v4l2_chip_match_host(&reg->match))
- return -EINVAL;
+ return -EINVAL;
}
/* Match host */
@@ -1356,13 +1415,19 @@ static int vidioc_g_register(struct file *file, void *priv,
}
static int vidioc_s_register(struct file *file, void *priv,
- struct v4l2_dbg_register *reg)
+ const struct v4l2_dbg_register *reg)
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
__le16 buf;
switch (reg->match.type) {
+ case V4L2_CHIP_MATCH_BRIDGE:
+ if (reg->match.addr > 1)
+ return -EINVAL;
+ if (!reg->match.addr)
+ break;
+ /* fall-through */
case V4L2_CHIP_MATCH_AC97:
return em28xx_write_ac97(dev, reg->reg, reg->val);
case V4L2_CHIP_MATCH_I2C_DRIVER:
@@ -1373,8 +1438,7 @@ static int vidioc_s_register(struct file *file, void *priv,
v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
return 0;
default:
- if (!v4l2_chip_match_host(&reg->match))
- return -EINVAL;
+ return -EINVAL;
}
/* Match host */
@@ -1386,26 +1450,6 @@ static int vidioc_s_register(struct file *file, void *priv,
#endif
-static int vidioc_cropcap(struct file *file, void *priv,
- struct v4l2_cropcap *cc)
-{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
-
- if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
- cc->bounds.left = 0;
- cc->bounds.top = 0;
- cc->bounds.width = dev->width;
- cc->bounds.height = dev->height;
- cc->defrect = cc->bounds;
- cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
- cc->pixelaspect.denominator = 59;
-
- return 0;
-}
-
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
@@ -1482,8 +1526,12 @@ static int vidioc_enum_framesizes(struct file *file, void *priv,
/* Report a continuous range */
fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
- fsize->stepwise.min_width = 48;
- fsize->stepwise.min_height = 32;
+ scale_to_size(dev, EM28XX_HVSCALE_MAX, EM28XX_HVSCALE_MAX,
+ &fsize->stepwise.min_width, &fsize->stepwise.min_height);
+ if (fsize->stepwise.min_width < 48)
+ fsize->stepwise.min_width = 48;
+ if (fsize->stepwise.min_height < 38)
+ fsize->stepwise.min_height = 38;
fsize->stepwise.max_width = maxw;
fsize->stepwise.max_height = maxh;
fsize->stepwise.step_width = 1;
@@ -1522,35 +1570,6 @@ static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
return 0;
}
-static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
- struct v4l2_format *format)
-{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
-
- format->fmt.vbi.samples_per_line = dev->vbi_width;
- format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
- format->fmt.vbi.offset = 0;
- format->fmt.vbi.flags = 0;
- format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
- format->fmt.vbi.count[0] = dev->vbi_height;
- format->fmt.vbi.count[1] = dev->vbi_height;
- memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
-
- /* Varies by video standard (NTSC, PAL, etc.) */
- if (dev->norm & V4L2_STD_525_60) {
- /* NTSC */
- format->fmt.vbi.start[0] = 10;
- format->fmt.vbi.start[1] = 273;
- } else if (dev->norm & V4L2_STD_625_50) {
- /* PAL */
- format->fmt.vbi.start[0] = 6;
- format->fmt.vbi.start[1] = 318;
- }
-
- return 0;
-}
-
/* ----------------------------------------------------------- */
/* RADIO ESPECIFIC IOCTLS */
/* ----------------------------------------------------------- */
@@ -1564,7 +1583,6 @@ static int radio_g_tuner(struct file *file, void *priv,
return -EINVAL;
strcpy(t->name, "Radio");
- t->type = V4L2_TUNER_RADIO;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
@@ -1572,7 +1590,7 @@ static int radio_g_tuner(struct file *file, void *priv,
}
static int radio_s_tuner(struct file *file, void *priv,
- struct v4l2_tuner *t)
+ const struct v4l2_tuner *t)
{
struct em28xx *dev = ((struct em28xx_fh *)priv)->dev;
@@ -1749,11 +1767,10 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
.vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
.vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
- .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap,
+ .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
.vidioc_enum_framesizes = vidioc_enum_framesizes,
.vidioc_g_audio = vidioc_g_audio,
.vidioc_s_audio = vidioc_s_audio,
- .vidioc_cropcap = vidioc_cropcap,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_create_bufs = vb2_ioctl_create_bufs,
@@ -1778,10 +1795,11 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_s_frequency = vidioc_s_frequency,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+ .vidioc_g_chip_ident = vidioc_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_g_chip_info = vidioc_g_chip_info,
.vidioc_g_register = vidioc_g_register,
.vidioc_s_register = vidioc_s_register,
- .vidioc_g_chip_ident = vidioc_g_chip_ident,
#endif
};
@@ -1808,7 +1826,9 @@ static const struct v4l2_ioctl_ops radio_ioctl_ops = {
.vidioc_s_frequency = vidioc_s_frequency,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+ .vidioc_g_chip_ident = vidioc_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_g_chip_info = vidioc_g_chip_info,
.vidioc_g_register = vidioc_g_register,
.vidioc_s_register = vidioc_s_register,
#endif
@@ -1887,9 +1907,42 @@ int em28xx_register_analog_devices(struct em28xx *dev)
(EM28XX_XCLK_AUDIO_UNMUTE | val));
em28xx_set_outfmt(dev);
- em28xx_colorlevels_set_default(dev);
em28xx_compression_disable(dev);
+ /* Add image controls */
+ /* NOTE: at this point, the subdevices are already registered, so bridge
+ * controls are only added/enabled when no subdevice provides them */
+ if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_CONTRAST))
+ v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ V4L2_CID_CONTRAST,
+ 0, 0x1f, 1, CONTRAST_DEFAULT);
+ if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_BRIGHTNESS))
+ v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ V4L2_CID_BRIGHTNESS,
+ -0x80, 0x7f, 1, BRIGHTNESS_DEFAULT);
+ if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_SATURATION))
+ v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ V4L2_CID_SATURATION,
+ 0, 0x1f, 1, SATURATION_DEFAULT);
+ if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_BLUE_BALANCE))
+ v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ V4L2_CID_BLUE_BALANCE,
+ -0x30, 0x30, 1, BLUE_BALANCE_DEFAULT);
+ if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_RED_BALANCE))
+ v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ V4L2_CID_RED_BALANCE,
+ -0x30, 0x30, 1, RED_BALANCE_DEFAULT);
+ if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_SHARPNESS))
+ v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ V4L2_CID_SHARPNESS,
+ 0, 0x0f, 1, SHARPNESS_DEFAULT);
+
+ /* Reset image controls */
+ em28xx_colorlevels_set_default(dev);
+ v4l2_ctrl_handler_setup(&dev->ctrl_handler);
+ if (dev->ctrl_handler.error)
+ return dev->ctrl_handler.error;
+
/* allocate and fill video video_device struct */
dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video");
if (!dev->vdev) {
@@ -1899,6 +1952,25 @@ int em28xx_register_analog_devices(struct em28xx *dev)
dev->vdev->queue = &dev->vb_vidq;
dev->vdev->queue->lock = &dev->vb_queue_lock;
+ /* disable inapplicable ioctls */
+ if (dev->board.is_webcam) {
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_QUERYSTD);
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_G_STD);
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_S_STD);
+ } else {
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM);
+ }
+ if (dev->tuner_type == TUNER_ABSENT) {
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_G_TUNER);
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_S_TUNER);
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_G_FREQUENCY);
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_S_FREQUENCY);
+ }
+ if (!dev->audio_mode.has_audio) {
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_G_AUDIO);
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_S_AUDIO);
+ }
+
/* register v4l2 video video_device */
ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
video_nr[dev->devno]);
@@ -1916,6 +1988,19 @@ int em28xx_register_analog_devices(struct em28xx *dev)
dev->vbi_dev->queue = &dev->vb_vbiq;
dev->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock;
+ /* disable inapplicable ioctls */
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM);
+ if (dev->tuner_type == TUNER_ABSENT) {
+ v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_TUNER);
+ v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_TUNER);
+ v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_FREQUENCY);
+ v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_FREQUENCY);
+ }
+ if (!dev->audio_mode.has_audio) {
+ v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_AUDIO);
+ v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_AUDIO);
+ }
+
/* register v4l2 vbi video_device */
ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
vbi_nr[dev->devno]);
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-22 10:29:13 +0000