#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) \
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;
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;
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 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)
{
*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);
+}
+
/* ------------------------------------------------------------------
IOCTL vidioc handling
------------------------------------------------------------------*/
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, hscale, &width, &height);
f->fmt.pix.width = width;
f->fmt.pix.height = height;
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);
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;
- if (*norm == dev->norm)
+ if (norm == dev->norm)
return 0;
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);
}
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;
}
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;
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;
}
}
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;
/* 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;
}
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;
(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) {
git.samba.org / sfrench / cifs-2.6.git / blobdiff