If the remote video sensor reports an interlaced video mode, the CCDC block
should configure itself appropriately.
This patch reintroduces code with was removed in commit
cf7a3d91ade6c56bfd860b377f84bd58132f7a81, but in a way that is compatible
with the new media pipeline work.
This patch also cleans up the ccdc_config_outlineoffset function, which was
exposing too may low-level configuration bits. The only useful register
settings correspond to deinterlacing the video and flipping the image
vertically. Vertical flipping isn't used, so the function simply exposes
a boolean flag to enable deinterlacing. A flag for vertical flipping could
be added later.
Signed-off-by: William Swanson <william.swan...@fuel7.com>
---
drivers/media/platform/omap3isp/ispccdc.c | 57 +++++++++++++++--------------
drivers/media/platform/omap3isp/ispreg.h | 4 --
include/media/omap3isp.h | 3 ++
3 files changed, 32 insertions(+), 32 deletions(-)
diff --git a/drivers/media/platform/omap3isp/ispccdc.c
b/drivers/media/platform/omap3isp/ispccdc.c
index 60e60aa..7b795e6e 100644
--- a/drivers/media/platform/omap3isp/ispccdc.c
+++ b/drivers/media/platform/omap3isp/ispccdc.c
@@ -876,19 +876,15 @@ static void ccdc_enable_vp(struct isp_ccdc_device *ccdc,
u8 enable)
* ccdc_config_outlineoffset - Configure memory saving output line offset
* @ccdc: Pointer to ISP CCDC device.
* @offset: Address offset to start a new line. Must be twice the
- * Output width and aligned on 32 byte boundary
- * @oddeven: Specifies the odd/even line pattern to be chosen to store the
- * output.
- * @numlines: Set the value 0-3 for +1-4lines, 4-7 for -1-4lines.
+ * output width and aligned on 32 byte boundary
+ * @interlaced: Write alternate frames to memory with an even/odd pattern.
*
* - Configures the output line offset when stored in memory
- * - Sets the odd/even line pattern to store the output
- * (EVENEVEN (1), ODDEVEN (2), EVENODD (3), ODDODD (4))
* - Configures the number of even and odd line fields in case of rearranging
* the lines.
*/
static void ccdc_config_outlineoffset(struct isp_ccdc_device *ccdc,
- u32 offset, u8 oddeven, u8 numlines)
+ u32 offset, bool interlaced)
{
struct isp_device *isp = to_isp_device(ccdc);
@@ -901,25 +897,18 @@ static void ccdc_config_outlineoffset(struct
isp_ccdc_device *ccdc,
isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
ISPCCDC_SDOFST_FOFST_4L);
- switch (oddeven) {
- case EVENEVEN:
+ if (interlaced) {
isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
- (numlines & 0x7) << ISPCCDC_SDOFST_LOFST0_SHIFT);
- break;
- case ODDEVEN:
- isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
- (numlines & 0x7) << ISPCCDC_SDOFST_LOFST1_SHIFT);
- break;
- case EVENODD:
- isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
- (numlines & 0x7) << ISPCCDC_SDOFST_LOFST2_SHIFT);
- break;
- case ODDODD:
- isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
- (numlines & 0x7) << ISPCCDC_SDOFST_LOFST3_SHIFT);
- break;
- default:
- break;
+ 1 << ISPCCDC_SDOFST_LOFST0_SHIFT |
+ 1 << ISPCCDC_SDOFST_LOFST1_SHIFT |
+ 1 << ISPCCDC_SDOFST_LOFST2_SHIFT |
+ 1 << ISPCCDC_SDOFST_LOFST3_SHIFT );
+ } else {
+ isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
+ 0x7 << ISPCCDC_SDOFST_LOFST0_SHIFT |
+ 0x7 << ISPCCDC_SDOFST_LOFST1_SHIFT |
+ 0x7 << ISPCCDC_SDOFST_LOFST2_SHIFT |
+ 0x7 << ISPCCDC_SDOFST_LOFST3_SHIFT );
}
}
@@ -970,10 +959,11 @@ void omap3isp_ccdc_max_rate(struct isp_ccdc_device *ccdc,
* @ccdc: Pointer to ISP CCDC device.
* @pdata: Parallel interface platform data (may be NULL)
* @data_size: Data size
+ * @interlaced: Use interlaced mode instead of progressive mode
*/
static void ccdc_config_sync_if(struct isp_ccdc_device *ccdc,
struct isp_parallel_platform_data *pdata,
- unsigned int data_size)
+ unsigned int data_size, bool interlaced)
{
struct isp_device *isp = to_isp_device(ccdc);
const struct v4l2_mbus_framefmt *format;
@@ -1004,9 +994,15 @@ static void ccdc_config_sync_if(struct isp_ccdc_device
*ccdc,
break;
}
+ if (interlaced)
+ syn_mode |= ISPCCDC_SYN_MODE_FLDMODE;
+
if (pdata && pdata->data_pol)
syn_mode |= ISPCCDC_SYN_MODE_DATAPOL;
+ if (pdata && pdata->fld_pol)
+ syn_mode |= ISPCCDC_SYN_MODE_FLDPOL;
+
if (pdata && pdata->hs_pol)
syn_mode |= ISPCCDC_SYN_MODE_HDPOL;
@@ -1111,6 +1107,7 @@ static void ccdc_configure(struct isp_ccdc_device *ccdc)
const struct v4l2_rect *crop;
const struct isp_format_info *fmt_info;
struct v4l2_subdev_format fmt_src;
+ bool interlaced = false;
unsigned int depth_out;
unsigned int depth_in = 0;
struct media_pad *pad;
@@ -1132,6 +1129,10 @@ static void ccdc_configure(struct isp_ccdc_device *ccdc)
fmt_src.pad = pad->index;
fmt_src.which = V4L2_SUBDEV_FORMAT_ACTIVE;
if (!v4l2_subdev_call(sensor, pad, get_fmt, NULL, &fmt_src)) {
+ if (fmt_src.format.field == V4L2_FIELD_INTERLACED ||
+ fmt_src.format.field == V4L2_FIELD_INTERLACED_TB ||
+ fmt_src.format.field == V4L2_FIELD_INTERLACED_BT)
+ interlaced = true;
fmt_info = omap3isp_video_format_info(fmt_src.format.code);
depth_in = fmt_info->width;
}
@@ -1150,7 +1151,7 @@ static void ccdc_configure(struct isp_ccdc_device *ccdc)
omap3isp_configure_bridge(isp, ccdc->input, pdata, shift, bridge);
- ccdc_config_sync_if(ccdc, pdata, depth_out);
+ ccdc_config_sync_if(ccdc, pdata, depth_out, interlaced);
syn_mode = isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
@@ -1213,7 +1214,7 @@ static void ccdc_configure(struct isp_ccdc_device *ccdc)
<< ISPCCDC_VERT_LINES_NLV_SHIFT,
OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_LINES);
- ccdc_config_outlineoffset(ccdc, ccdc->video_out.bpl_value, 0, 0);
+ ccdc_config_outlineoffset(ccdc, ccdc->video_out.bpl_value, interlaced);
/* The CCDC outputs data in UYVY order by default. Swap bytes to get
* YUYV.
diff --git a/drivers/media/platform/omap3isp/ispreg.h
b/drivers/media/platform/omap3isp/ispreg.h
index b7d90e6..956df24a 100644
--- a/drivers/media/platform/omap3isp/ispreg.h
+++ b/drivers/media/platform/omap3isp/ispreg.h
@@ -747,10 +747,6 @@
#define ISPCCDC_SDOFST_LOFST2_SHIFT 3
#define ISPCCDC_SDOFST_LOFST1_SHIFT 6
#define ISPCCDC_SDOFST_LOFST0_SHIFT 9
-#define EVENEVEN 1
-#define ODDEVEN 2
-#define EVENODD 3
-#define ODDODD 4
#define ISPCCDC_CLAMP_OBGAIN_SHIFT 0
#define ISPCCDC_CLAMP_OBST_SHIFT 10
diff --git a/include/media/omap3isp.h b/include/media/omap3isp.h
index 9584269..32d85c2 100644
--- a/include/media/omap3isp.h
+++ b/include/media/omap3isp.h
@@ -57,6 +57,8 @@ enum {
* ISP_LANE_SHIFT_6 - CAMEXT[13:6] -> CAM[7:0]
* @clk_pol: Pixel clock polarity
* 0 - Sample on rising edge, 1 - Sample on falling edge
+ * @fld_pol: Field identification signal polarity
+ * 0 - Active high, 1 - Active low
* @hs_pol: Horizontal synchronization polarity
* 0 - Active high, 1 - Active low
* @vs_pol: Vertical synchronization polarity
@@ -67,6 +69,7 @@ enum {
struct isp_parallel_platform_data {
unsigned int data_lane_shift:2;
unsigned int clk_pol:1;
+ unsigned int fld_pol:1;
unsigned int hs_pol:1;
unsigned int vs_pol:1;
unsigned int data_pol:1;
--
1.7.9.5
--
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