diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2011-01-18 15:58:04 +0100 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2011-10-14 13:10:43 +0200 |
| commit | a3480b99fe448d85581d7455a1d2346582a2b0c7 (patch) | |
| tree | d1599adc63522535c311e6da3da2d65001b95e52 /isp | |
| parent | d5e0f9b31e8a5da5b25a01bb1955314859c62760 (diff) | |
omap3isp: CCDC black level compensation control
Add a function to modify the black level DC offset for the OMAP3 ISP
CCDC.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'isp')
| -rw-r--r-- | isp/controls.c | 25 | ||||
| -rw-r--r-- | isp/omap3isp.h | 2 |
2 files changed, 27 insertions, 0 deletions
diff --git a/isp/controls.c b/isp/controls.c index c7ceee2..4dc943f 100644 --- a/isp/controls.c +++ b/isp/controls.c @@ -153,6 +153,31 @@ static void matrix_float_to_s12q8(__u16 out[3][3], const struct matrix *in) } /* ----------------------------------------------------------------------------- + * CCDC parameters configuration + */ + +int omap3_isp_ccdc_set_black_level(struct omap3_isp_device *isp, unsigned int value) +{ + struct omap3isp_ccdc_update_config config; + struct omap3isp_ccdc_bclamp bclamp; + int ret; + + memset(&config, 0, sizeof config); + config.update = OMAP3ISP_CCDC_BLCLAMP; + config.flag = 0; + config.bclamp = &bclamp; + + memset(&bclamp, 0, sizeof bclamp); + bclamp.dcsubval = value; + + ret = ioctl(isp->ccdc->fd, VIDIOC_OMAP3ISP_CCDC_CFG, &config); + if (ret < 0) + return -errno; + + return ret; +} + +/* ----------------------------------------------------------------------------- * Preview engine parameters configuration */ diff --git a/isp/omap3isp.h b/isp/omap3isp.h index 368fd72..6635437 100644 --- a/isp/omap3isp.h +++ b/isp/omap3isp.h @@ -74,6 +74,8 @@ int omap3_isp_snapshot_capture(struct omap3_isp_device *isp); int omap3_isp_snapshot_put_buffer(struct omap3_isp_device *isp, struct v4l2_video_buffer *buffer); +int omap3_isp_ccdc_set_black_level(struct omap3_isp_device *isp, unsigned int value); + int omap3_isp_preview_set_contrast(struct omap3_isp_device *isp, unsigned int value); int omap3_isp_preview_set_saturation(struct omap3_isp_device *isp, float value); |