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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2009-03-18 19:24:05 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 19:43:30 +0400 |
| commit | b794aabff01a704df5c0bcf6537e6a7343a08465 (patch) | |
| tree | 41d8e60b09f33017bde5f5b4847688ec7caadc19 /drivers/media/video/ov7670.c | |
| parent | ca07561ac70b00b5c2b5af727b3d0b6a4f91bee2 (diff) | |
| download | linux-b794aabff01a704df5c0bcf6537e6a7343a08465.tar.xz | |
V4L/DVB (11117): ov7670: add support to get/set registers
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/ov7670.c')
| -rw-r--r-- | drivers/media/video/ov7670.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/media/video/ov7670.c b/drivers/media/video/ov7670.c index ab245f71b195..0e2184ec994e 100644 --- a/drivers/media/video/ov7670.c +++ b/drivers/media/video/ov7670.c @@ -1180,6 +1180,36 @@ static int ov7670_g_chip_ident(struct v4l2_subdev *sd, return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_OV7670, 0); } +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int ov7670_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + unsigned char val = 0; + int ret; + + if (!v4l2_chip_match_i2c_client(client, ®->match)) + return -EINVAL; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + ret = ov7670_read(sd, reg->reg & 0xff, &val); + reg->val = val; + reg->size = 1; + return ret; +} + +static int ov7670_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (!v4l2_chip_match_i2c_client(client, ®->match)) + return -EINVAL; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + ov7670_write(sd, reg->reg & 0xff, reg->val & 0xff); + return 0; +} +#endif + /* ----------------------------------------------------------------------- */ static const struct v4l2_subdev_core_ops ov7670_core_ops = { @@ -1189,6 +1219,10 @@ static const struct v4l2_subdev_core_ops ov7670_core_ops = { .queryctrl = ov7670_queryctrl, .reset = ov7670_reset, .init = ov7670_init, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = ov7670_g_register, + .s_register = ov7670_s_register, +#endif }; static const struct v4l2_subdev_video_ops ov7670_video_ops = { |