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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2009-03-18 17:24:05 +0100 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2009-03-18 17:24:05 +0100 |
| commit | 8d931e8c8a626b3828f0fd1805f7ef17a43f223e (patch) | |
| tree | a5ad5c285ad3cdab9e472bfec317f713b28d8e95 | |
| parent | 9586770579fda1a7ffe16db0ca1a94aae4f58113 (diff) | |
| download | mediapointer-dvb-s2-8d931e8c8a626b3828f0fd1805f7ef17a43f223e.tar.gz mediapointer-dvb-s2-8d931e8c8a626b3828f0fd1805f7ef17a43f223e.tar.bz2 | |
ov7670: add support to get/set registers
From: Hans Verkuil <hverkuil@xs4all.nl>
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Jonathan Corbet <corbet@lwn.net>
| -rw-r--r-- | linux/drivers/media/video/ov7670.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/linux/drivers/media/video/ov7670.c b/linux/drivers/media/video/ov7670.c index 2a048645c..263f20669 100644 --- a/linux/drivers/media/video/ov7670.c +++ b/linux/drivers/media/video/ov7670.c @@ -1223,6 +1223,36 @@ 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 = { @@ -1232,6 +1262,10 @@ 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 = { |