diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2014-05-19 16:37:38 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-08-21 15:25:14 -0500 |
| commit | 9a36d8ed33c481a99f69f8a2eeb22e3c7750e522 (patch) | |
| tree | 05e04c5c044086df8248e88877426758571be347 /drivers/media/platform/omap3isp/ispccdc.c | |
| parent | 0a7b1a01037e0d43e1b85134be4217c7831f57d6 (diff) | |
[media] omap3isp: ccdc: Add basic support for interlaced video
When the CCDC input is interlaced enable the alternate field order on
the CCDC output video node. The field signal polarity is specified
through platform data.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Enrico Butera <ebutera@users.sourceforge.net>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/platform/omap3isp/ispccdc.c')
| -rw-r--r-- | drivers/media/platform/omap3isp/ispccdc.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/media/platform/omap3isp/ispccdc.c b/drivers/media/platform/omap3isp/ispccdc.c index 76d4fd73f5e8..49d7256a7de3 100644 --- a/drivers/media/platform/omap3isp/ispccdc.c +++ b/drivers/media/platform/omap3isp/ispccdc.c @@ -1001,6 +1001,9 @@ static void ccdc_config_sync_if(struct isp_ccdc_device *ccdc, if (pdata && pdata->vs_pol) syn_mode |= ISPCCDC_SYN_MODE_VDPOL; + if (pdata && pdata->fld_pol) + syn_mode |= ISPCCDC_SYN_MODE_FLDPOL; + isp_reg_writel(isp, syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE); /* The CCDC_CFG.Y8POS bit is used in YCbCr8 input mode only. The @@ -1140,6 +1143,7 @@ static void ccdc_configure(struct isp_ccdc_device *ccdc) omap3isp_configure_bridge(isp, ccdc->input, pdata, shift, bridge); + /* Configure the sync interface. */ ccdc_config_sync_if(ccdc, pdata, depth_out); syn_mode = isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE); @@ -1499,6 +1503,17 @@ static int ccdc_isr_buffer(struct isp_ccdc_device *ccdc) return 1; } + /* When capturing fields in alternate order read the current field + * identifier and store it in the pipeline. + */ + if (ccdc->formats[CCDC_PAD_SOURCE_OF].field == V4L2_FIELD_ALTERNATE) { + u32 syn_mode = isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, + ISPCCDC_SYN_MODE); + + pipe->field = syn_mode & ISPCCDC_SYN_MODE_FLDSTAT + ? V4L2_FIELD_BOTTOM : V4L2_FIELD_TOP; + } + if (ccdc_sbl_wait_idle(ccdc, 1000)) { dev_info(isp->dev, "CCDC won't become idle!\n"); isp->crashed |= 1U << ccdc->subdev.entity.id; @@ -1830,6 +1845,11 @@ ccdc_try_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_fh *fh, /* Clamp the input size. */ fmt->width = clamp_t(u32, width, 32, 4096); fmt->height = clamp_t(u32, height, 32, 4096); + + /* Default to progressive field order. */ + if (fmt->field == V4L2_FIELD_ANY) + fmt->field = V4L2_FIELD_NONE; + break; case CCDC_PAD_SOURCE_OF: @@ -1885,7 +1905,6 @@ ccdc_try_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_fh *fh, * stored on 2 bytes. */ fmt->colorspace = V4L2_COLORSPACE_SRGB; - fmt->field = V4L2_FIELD_NONE; } /* |