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Message-Id: <201109081923.55365.laurent.pinchart@ideasonboard.com>
Date: Thu, 8 Sep 2011 19:23:54 +0200
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Deepthy Ravi <deepthy.ravi@...com>
Cc: linux-media@...r.kernel.org, tony@...mide.com,
linux@....linux.org.uk, linux-omap@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
mchehab@...radead.org, g.liakhovetski@....de,
"Vaibhav Hiremath" <hvaibhav@...com>
Subject: Re: [PATCH 5/8] ispccdc: Configure CCDC registers
Hi,
Thanks for the patch.
On Thursday 08 September 2011 15:35:44 Deepthy Ravi wrote:
> From: Vaibhav Hiremath <hvaibhav@...com>
>
> Configure the CCDC registers for YUV and non YUV
> data. Also some code clean-up for making it compact.
I've already posted patches to the linux-media mailing list for this. Can you
rebase this patch on top of them ?
> Signed-off-by: Vaibhav Hiremath <hvaibhav@...com>
> Signed-off-by: Deepthy Ravi <deepthy.ravi@...com>
> ---
> drivers/media/video/omap3isp/ispccdc.c | 65
> +++++++++++++++++++++---------- drivers/media/video/omap3isp/ispreg.h |
> 1 +
> drivers/media/video/omap3isp/ispvideo.c | 3 +
> 3 files changed, 48 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/media/video/omap3isp/ispccdc.c
> b/drivers/media/video/omap3isp/ispccdc.c index d58fe45..c583384 100644
> --- a/drivers/media/video/omap3isp/ispccdc.c
> +++ b/drivers/media/video/omap3isp/ispccdc.c
> @@ -58,6 +58,7 @@ static const unsigned int ccdc_fmts[] = {
> V4L2_MBUS_FMT_SBGGR12_1X12,
> V4L2_MBUS_FMT_SGBRG12_1X12,
> V4L2_MBUS_FMT_UYVY8_2X8,
> + V4L2_MBUS_FMT_YUYV8_2X8,
> };
>
> /*
> @@ -788,11 +789,16 @@ static void ccdc_apply_controls(struct
> isp_ccdc_device *ccdc) void omap3isp_ccdc_restore_context(struct
> isp_device *isp)
> {
> struct isp_ccdc_device *ccdc = &isp->isp_ccdc;
> + struct v4l2_mbus_framefmt *format;
>
> isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG, ISPCCDC_CFG_VDLC);
>
> - ccdc->update = OMAP3ISP_CCDC_ALAW | OMAP3ISP_CCDC_LPF
> - | OMAP3ISP_CCDC_BLCLAMP | OMAP3ISP_CCDC_BCOMP;
> + /* CCDC_PAD_SINK */
> + format = &ccdc->formats[CCDC_PAD_SINK];
> + if ((format->code != V4L2_MBUS_FMT_UYVY8_2X8) &&
> + (format->code != V4L2_MBUS_FMT_UYVY8_2X8))
> + ccdc->update = OMAP3ISP_CCDC_ALAW | OMAP3ISP_CCDC_LPF
> + | OMAP3ISP_CCDC_BLCLAMP | OMAP3ISP_CCDC_BCOMP;
> ccdc_apply_controls(ccdc);
> ccdc_configure_fpc(ccdc);
> }
> @@ -966,14 +972,22 @@ static void ccdc_config_sync_if(struct
> isp_ccdc_device *ccdc, u32 syn_mode = isp_reg_readl(isp,
> OMAP3_ISP_IOMEM_CCDC,
> ISPCCDC_SYN_MODE);
>
> + syn_mode &= ~(ISPCCDC_SYN_MODE_VDHDOUT |
> + ISPCCDC_SYN_MODE_FLDOUT |
> + ISPCCDC_SYN_MODE_VDPOL |
> + ISPCCDC_SYN_MODE_HDPOL |
> + ISPCCDC_SYN_MODE_FLDPOL |
> + ISPCCDC_SYN_MODE_FLDMODE |
> + ISPCCDC_SYN_MODE_DATAPOL |
> + ISPCCDC_SYN_MODE_DATSIZ_MASK |
> + ISPCCDC_SYN_MODE_PACK8 |
> + ISPCCDC_SYN_MODE_INPMOD_MASK);
> +
> syn_mode |= ISPCCDC_SYN_MODE_VDHDEN;
>
> if (syncif->fldstat)
> syn_mode |= ISPCCDC_SYN_MODE_FLDSTAT;
> - else
> - syn_mode &= ~ISPCCDC_SYN_MODE_FLDSTAT;
>
> - syn_mode &= ~ISPCCDC_SYN_MODE_DATSIZ_MASK;
> switch (syncif->datsz) {
> case 8:
> syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_8;
> @@ -991,28 +1005,18 @@ static void ccdc_config_sync_if(struct
> isp_ccdc_device *ccdc,
>
> if (syncif->fldmode)
> syn_mode |= ISPCCDC_SYN_MODE_FLDMODE;
> - else
> - syn_mode &= ~ISPCCDC_SYN_MODE_FLDMODE;
>
> if (syncif->datapol)
> syn_mode |= ISPCCDC_SYN_MODE_DATAPOL;
> - else
> - syn_mode &= ~ISPCCDC_SYN_MODE_DATAPOL;
>
> if (syncif->fldpol)
> syn_mode |= ISPCCDC_SYN_MODE_FLDPOL;
> - else
> - syn_mode &= ~ISPCCDC_SYN_MODE_FLDPOL;
>
> if (syncif->hdpol)
> syn_mode |= ISPCCDC_SYN_MODE_HDPOL;
> - else
> - syn_mode &= ~ISPCCDC_SYN_MODE_HDPOL;
>
> if (syncif->vdpol)
> syn_mode |= ISPCCDC_SYN_MODE_VDPOL;
> - else
> - syn_mode &= ~ISPCCDC_SYN_MODE_VDPOL;
>
> if (syncif->ccdc_mastermode) {
> syn_mode |= ISPCCDC_SYN_MODE_FLDOUT | ISPCCDC_SYN_MODE_VDHDOUT;
> @@ -1027,9 +1031,7 @@ static void ccdc_config_sync_if(struct
> isp_ccdc_device *ccdc,
>
> | syncif->hlprf << ISPCCDC_PIX_LINES_HLPRF_SHIFT,
>
> OMAP3_ISP_IOMEM_CCDC,
> ISPCCDC_PIX_LINES);
> - } else
> - syn_mode &= ~(ISPCCDC_SYN_MODE_FLDOUT |
> - ISPCCDC_SYN_MODE_VDHDOUT);
> + }
>
> isp_reg_writel(isp, syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
>
> @@ -1181,6 +1183,9 @@ static void ccdc_configure(struct isp_ccdc_device
> *ccdc)
>
> isp_reg_writel(isp, syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
>
> + if (format->code == V4L2_MBUS_FMT_UYVY8_2X8)
> + isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
> + ISPCCDC_CFG_Y8POS);
> /* Mosaic filter */
> switch (format->code) {
> case V4L2_MBUS_FMT_SRGGB10_1X10:
> @@ -1200,7 +1205,10 @@ static void ccdc_configure(struct isp_ccdc_device
> *ccdc) ccdc_pattern = ccdc_sgrbg_pattern;
> break;
> }
> - ccdc_config_imgattr(ccdc, ccdc_pattern);
> +
> + if ((format->code != V4L2_MBUS_FMT_YUYV8_2X8) &&
> + (format->code != V4L2_MBUS_FMT_UYVY8_2X8))
> + ccdc_config_imgattr(ccdc, ccdc_pattern);
>
> /* Generate VD0 on the last line of the image and VD1 on the
> * 2/3 height line.
> @@ -1221,6 +1229,15 @@ static void ccdc_configure(struct isp_ccdc_device
> *ccdc) << ISPCCDC_VERT_LINES_NLV_SHIFT,
> OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_LINES);
>
> + isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
> + ISPCCDC_SDOFST_LOFST_MASK << ISPCCDC_SDOFST_LOFST0_SHIFT);
> + isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
> + ISPCCDC_SDOFST_LOFST_MASK << ISPCCDC_SDOFST_LOFST1_SHIFT);
> + isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
> + ISPCCDC_SDOFST_LOFST_MASK << ISPCCDC_SDOFST_LOFST2_SHIFT);
> + isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
> + ISPCCDC_SDOFST_LOFST_MASK << ISPCCDC_SDOFST_LOFST3_SHIFT);
> +
> ccdc_config_outlineoffset(ccdc, ccdc->video_out.bpl_value, 0, 0);
>
> /* CCDC_PAD_SOURCE_VP */
> @@ -1270,6 +1287,7 @@ static void __ccdc_enable(struct isp_ccdc_device
> *ccdc, int enable) ISPCCDC_PCR_EN, enable ? ISPCCDC_PCR_EN : 0);
> }
>
> +static int __ccdc_handle_stopping(struct isp_ccdc_device *ccdc, u32
> event); static int ccdc_disable(struct isp_ccdc_device *ccdc)
> {
> unsigned long flags;
> @@ -1280,6 +1298,11 @@ static int ccdc_disable(struct isp_ccdc_device
> *ccdc) ccdc->stopping = CCDC_STOP_REQUEST;
> spin_unlock_irqrestore(&ccdc->lock, flags);
>
> + __ccdc_lsc_enable(ccdc, 0);
> + __ccdc_enable(ccdc, 0);
> + ccdc->stopping = CCDC_STOP_EXECUTED;
> + __ccdc_handle_stopping(ccdc, CCDC_STOP_FINISHED);
> +
This looks a bit unrelated. Could you please explain why that's needed ?
> ret = wait_event_timeout(ccdc->wait,
> ccdc->stopping == CCDC_STOP_FINISHED,
> msecs_to_jiffies(2000));
> @@ -1735,7 +1758,7 @@ static int ccdc_set_stream(struct v4l2_subdev *sd,
> int enable) * links are inactive.
> */
> ccdc_config_vp(ccdc);
> - ccdc_enable_vp(ccdc, 1);
> + ccdc_enable_vp(ccdc, 0);
Are you sure about this ?
> ccdc->error = 0;
> ccdc_print_status(ccdc);
> }
> @@ -2265,7 +2288,7 @@ int omap3isp_ccdc_init(struct isp_device *isp)
>
> ccdc->vpcfg.pixelclk = 0;
>
> - ccdc->update = OMAP3ISP_CCDC_BLCLAMP;
> + ccdc->update = 0;
> ccdc_apply_controls(ccdc);
>
> return ccdc_init_entities(ccdc);
> diff --git a/drivers/media/video/omap3isp/ispreg.h
> b/drivers/media/video/omap3isp/ispreg.h index 69f6af6..ada39c6 100644
> --- a/drivers/media/video/omap3isp/ispreg.h
> +++ b/drivers/media/video/omap3isp/ispreg.h
> @@ -827,6 +827,7 @@
> #define ISPCCDC_SDOFST_LOFST2_SHIFT 3
> #define ISPCCDC_SDOFST_LOFST1_SHIFT 6
> #define ISPCCDC_SDOFST_LOFST0_SHIFT 9
> +#define ISPCCDC_SDOFST_LOFST_MASK 0x7
> #define EVENEVEN 1
> #define ODDEVEN 2
> #define EVENODD 3
> diff --git a/drivers/media/video/omap3isp/ispvideo.c
> b/drivers/media/video/omap3isp/ispvideo.c index ff0ffed..d595d01 100644
> --- a/drivers/media/video/omap3isp/ispvideo.c
> +++ b/drivers/media/video/omap3isp/ispvideo.c
> @@ -104,6 +104,9 @@ static struct isp_format_info formats[] = {
> { V4L2_MBUS_FMT_UYVY8_2X8, V4L2_MBUS_FMT_UYVY8_2X8,
> V4L2_MBUS_FMT_UYVY8_2X8, 0,
> V4L2_PIX_FMT_UYVY, 16, },
> + { V4L2_MBUS_FMT_YUYV8_2X8, V4L2_MBUS_FMT_YUYV8_2X8,
> + V4L2_MBUS_FMT_YUYV8_2X8, 0,
> + V4L2_PIX_FMT_YUYV, 16, },
> };
>
> const struct isp_format_info *
--
Regards,
Laurent Pinchart
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