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V4L/DVB (12282): gspca - main: Support for vidioc_g_chip_ident and vidioc_g/s_register.

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Signed-off-by: Brian Johnson <brijohn@gmail.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Brian Johnson 2009-07-19 05:29:20 -03:00 committed by Mauro Carvalho Chehab
parent a2f5a8117c
commit af1d9afa75
2 changed files with 82 additions and 0 deletions
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73
drivers/media/video/gspca/gspca.c
View File

@ -727,6 +727,74 @@ static int gspca_get_mode(struct gspca_dev *gspca_dev,
return -EINVAL;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int vidioc_g_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg)
{
int ret;
struct gspca_dev *gspca_dev = priv;
if (!gspca_dev->sd_desc->get_chip_ident)
return -EINVAL;
if (!gspca_dev->sd_desc->get_register)
return -EINVAL;
if (mutex_lock_interruptible(&gspca_dev->usb_lock))
return -ERESTARTSYS;
if (gspca_dev->present)
ret = gspca_dev->sd_desc->get_register(gspca_dev, reg);
else
ret = -ENODEV;
mutex_unlock(&gspca_dev->usb_lock);
return ret;
}
static int vidioc_s_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg)
{
int ret;
struct gspca_dev *gspca_dev = priv;
if (!gspca_dev->sd_desc->get_chip_ident)
return -EINVAL;
if (!gspca_dev->sd_desc->set_register)
return -EINVAL;
if (mutex_lock_interruptible(&gspca_dev->usb_lock))
return -ERESTARTSYS;
if (gspca_dev->present)
ret = gspca_dev->sd_desc->set_register(gspca_dev, reg);
else
ret = -ENODEV;
mutex_unlock(&gspca_dev->usb_lock);
return ret;
}
#endif
static int vidioc_g_chip_ident(struct file *file, void *priv,
struct v4l2_dbg_chip_ident *chip)
{
int ret;
struct gspca_dev *gspca_dev = priv;
if (!gspca_dev->sd_desc->get_chip_ident)
return -EINVAL;
if (mutex_lock_interruptible(&gspca_dev->usb_lock))
return -ERESTARTSYS;
if (gspca_dev->present)
ret = gspca_dev->sd_desc->get_chip_ident(gspca_dev, chip);
else
ret = -ENODEV;
mutex_unlock(&gspca_dev->usb_lock);
return ret;
}
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *fmtdesc)
{
@ -1883,6 +1951,11 @@ static const struct v4l2_ioctl_ops dev_ioctl_ops = {
.vidioc_s_parm = vidioc_s_parm,
.vidioc_s_std = vidioc_s_std,
.vidioc_enum_framesizes = vidioc_enum_framesizes,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = vidioc_g_register,
.vidioc_s_register = vidioc_s_register,
#endif
.vidioc_g_chip_ident = vidioc_g_chip_ident,
#ifdef CONFIG_VIDEO_V4L1_COMPAT
.vidiocgmbuf = vidiocgmbuf,
#endif

9
drivers/media/video/gspca/gspca.h
View File

@ -69,6 +69,10 @@ typedef void (*cam_v_op) (struct gspca_dev *);
typedef int (*cam_cf_op) (struct gspca_dev *, const struct usb_device_id *);
typedef int (*cam_jpg_op) (struct gspca_dev *,
struct v4l2_jpegcompression *);
typedef int (*cam_reg_op) (struct gspca_dev *,
struct v4l2_dbg_register *);
typedef int (*cam_ident_op) (struct gspca_dev *,
struct v4l2_dbg_chip_ident *);
typedef int (*cam_streamparm_op) (struct gspca_dev *,
struct v4l2_streamparm *);
typedef int (*cam_qmnu_op) (struct gspca_dev *,
@ -105,6 +109,11 @@ struct sd_desc {
cam_qmnu_op querymenu;
cam_streamparm_op get_streamparm;
cam_streamparm_op set_streamparm;
#ifdef CONFIG_VIDEO_ADV_DEBUG
cam_reg_op set_register;
cam_reg_op get_register;
#endif
cam_ident_op get_chip_ident;
};
/* packet types when moving from iso buf to frame buf */