V4L/DVB (13663): sh_mobile_ceu: Add V4L2_FIELD_INTERLACED_BT/TB support

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 51 insertions, 24 deletions

diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 273ad34f9d8..df8dc1dde19 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -107,7 +107,8 @@ struct sh_mobile_ceu_dev {
 
         u32 cflcr;
 
-        unsigned int is_interlaced:1;
+        enum v4l2_field field;
+
         unsigned int image_mode:1;
         unsigned int is_16bit:1;
 };
@@ -254,6 +255,8 @@ static int sh_mobile_ceu_capture(struct sh_mobile_ceu_dev *pcdev)
 {
         struct soc_camera_device *icd = pcdev->icd;
         dma_addr_t phys_addr_top, phys_addr_bottom;
+        unsigned long top1, top2;
+        unsigned long bottom1, bottom2;
         u32 status;
         int ret = 0;
 
@@ -282,11 +285,23 @@ static int sh_mobile_ceu_capture(struct sh_mobile_ceu_dev *pcdev)
         if (!pcdev->active)
                 return ret;
 
+        if (V4L2_FIELD_INTERLACED_BT == pcdev->field) {
+                top1    = CDBYR;
+                top2    = CDBCR;
+                bottom1 = CDAYR;
+                bottom2 = CDACR;
+        } else {
+                top1    = CDAYR;
+                top2    = CDACR;
+                bottom1 = CDBYR;
+                bottom2 = CDBCR;
+        }
+
         phys_addr_top = videobuf_to_dma_contig(pcdev->active);
-        ceu_write(pcdev, CDAYR, phys_addr_top);
-        if (pcdev->is_interlaced) {
+        ceu_write(pcdev, top1, phys_addr_top);
+        if (V4L2_FIELD_NONE != pcdev->field) {
                 phys_addr_bottom = phys_addr_top + icd->user_width;
-                ceu_write(pcdev, CDBYR, phys_addr_bottom);
+                ceu_write(pcdev, bottom1, phys_addr_bottom);
         }
 
         switch (icd->current_fmt->host_fmt->fourcc) {
@@ -296,11 +311,10 @@ static int sh_mobile_ceu_capture(struct sh_mobile_ceu_dev *pcdev)
         case V4L2_PIX_FMT_NV61:
                 phys_addr_top += icd->user_width *
                         icd->user_height;
-                ceu_write(pcdev, CDACR, phys_addr_top);
-                if (pcdev->is_interlaced) {
-                        phys_addr_bottom = phys_addr_top +
-                                icd->user_width;
-                        ceu_write(pcdev, CDBCR, phys_addr_bottom);
+                ceu_write(pcdev, top2, phys_addr_top);
+                if (V4L2_FIELD_NONE != pcdev->field) {
+                        phys_addr_bottom = phys_addr_top + icd->user_width;
+                        ceu_write(pcdev, bottom2, phys_addr_bottom);
                 }
         }
 
@@ -602,7 +616,7 @@ static void sh_mobile_ceu_set_rect(struct soc_camera_device *icd,
 
         height = out_height;
         in_height = rect->height;
-        if (pcdev->is_interlaced) {
+        if (V4L2_FIELD_NONE != pcdev->field) {
                 height /= 2;
                 in_height /= 2;
                 top_offset /= 2;
@@ -729,7 +743,19 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd,
         ceu_write(pcdev, CAMCR, value);
 
         ceu_write(pcdev, CAPCR, 0x00300000);
-        ceu_write(pcdev, CAIFR, pcdev->is_interlaced ? 0x101 : 0);
+
+        switch (pcdev->field) {
+        case V4L2_FIELD_INTERLACED_TB:
+                value = 0x101;
+                break;
+        case V4L2_FIELD_INTERLACED_BT:
+                value = 0x102;
+                break;
+        default:
+                value = 0;
+                break;
+        }
+        ceu_write(pcdev, CAIFR, value);
 
         sh_mobile_ceu_set_rect(icd, icd->user_width, icd->user_height);
         mdelay(1);
@@ -1357,8 +1383,7 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
 
         /* 6. - 9. */
         mf.code         = cam->code;
-        mf.field        = pcdev->is_interlaced ? V4L2_FIELD_INTERLACED :
-                                                V4L2_FIELD_NONE;
+        mf.field        = pcdev->field;
 
         capsr = capture_save_reset(pcdev);
         dev_dbg(dev, "CAPSR 0x%x, CFLCR 0x%x\n", capsr, pcdev->cflcr);
@@ -1368,7 +1393,8 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
         rect->top       -= cam_rect->top;
 
         ret = client_scale(icd, cam_rect, rect, ceu_rect, &mf,
-                           pcdev->image_mode && !pcdev->is_interlaced);
+                           pcdev->image_mode &&
+                           V4L2_FIELD_NONE == pcdev->field);
 
         dev_geo(dev, "6-9: %d\n", ret);
 
@@ -1425,18 +1451,20 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
         unsigned int scale_cam_h, scale_cam_v;
         u16 scale_v, scale_h;
         int ret;
-        bool is_interlaced, image_mode;
+        bool image_mode;
+        enum v4l2_field field;
 
         switch (pix->field) {
-        case V4L2_FIELD_INTERLACED:
-                is_interlaced = true;
-                break;
-        case V4L2_FIELD_ANY:
         default:
                 pix->field = V4L2_FIELD_NONE;
                 /* fall-through */
+        case V4L2_FIELD_INTERLACED_TB:
+        case V4L2_FIELD_INTERLACED_BT:
         case V4L2_FIELD_NONE:
-                is_interlaced = false;
+                field = pix->field;
+                break;
+        case V4L2_FIELD_INTERLACED:
+                field = V4L2_FIELD_INTERLACED_TB;
                 break;
         }
 
@@ -1505,7 +1533,7 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
 
         /* 5. - 9. */
         ret = client_scale(icd, cam_rect, &cam_subrect, &ceu_rect, &mf,
-                           image_mode && !is_interlaced);
+                           image_mode && V4L2_FIELD_NONE == field);
 
         dev_geo(dev, "5-9: client scale %d\n", ret);
 
@@ -1555,7 +1583,7 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
         cam->ceu_rect           = ceu_rect;
         icd->current_fmt        = xlate;
 
-        pcdev->is_interlaced = is_interlaced;
+        pcdev->field = field;
         pcdev->image_mode = image_mode;
 
         return 0;
@@ -1698,8 +1726,7 @@ static void sh_mobile_ceu_init_videobuf(struct videobuf_queue *q,
                                        &sh_mobile_ceu_videobuf_ops,
                                        icd->dev.parent, &pcdev->lock,
                                        V4L2_BUF_TYPE_VIDEO_CAPTURE,
-                                       pcdev->is_interlaced ?
-                                       V4L2_FIELD_INTERLACED : V4L2_FIELD_NONE,
+                                       pcdev->field,
                                        sizeof(struct sh_mobile_ceu_buffer),
                                        icd);
 }