V4L/DVB: v4l: s5p-fimc: Fix 3-planar formats handling and pixel offset error on S5PV2...

Fix DMA engine pixel offset calculation for 3-planar YUV formats.
On S5PV210 SoCs horizontal offset is applied as number of pixels,
not bytes per line.

[mchehab@redhat.com: CodingStyle cleanup]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c
index 8cd1ef07392656bed13a97127f04448cb195ec76..6961c55baf9b1140609dd470b4abc3e05eed86c3 100644 (file)
--- a/drivers/media/video/s5p-fimc/fimc-core.c
+++ b/drivers/media/video/s5p-fimc/fimc-core.c
@@ -393,6 +393,37 @@ static void fimc_set_yuv_order(struct fimc_ctx *ctx)
        dbg("ctx->out_order_1p= %d", ctx->out_order_1p);
 }
 
+static void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f)
+{
+       struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
+
+       f->dma_offset.y_h = f->offs_h;
+       if (!variant->pix_hoff)
+               f->dma_offset.y_h *= (f->fmt->depth >> 3);
+
+       f->dma_offset.y_v = f->offs_v;
+
+       f->dma_offset.cb_h = f->offs_h;
+       f->dma_offset.cb_v = f->offs_v;
+
+       f->dma_offset.cr_h = f->offs_h;
+       f->dma_offset.cr_v = f->offs_v;
+
+       if (!variant->pix_hoff) {
+               if (f->fmt->planes_cnt == 3) {
+                       f->dma_offset.cb_h >>= 1;
+                       f->dma_offset.cr_h >>= 1;
+               }
+               if (f->fmt->color == S5P_FIMC_YCBCR420) {
+                       f->dma_offset.cb_v >>= 1;
+                       f->dma_offset.cr_v >>= 1;
+               }
+       }
+
+       dbg("in_offset: color= %d, y_h= %d, y_v= %d",
+           f->fmt->color, f->dma_offset.y_h, f->dma_offset.y_v);
+}
+
 /**
  * fimc_prepare_config - check dimensions, operation and color mode
  *                      and pre-calculate offset and the scaling coefficients.
@@ -406,7 +437,6 @@ static int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
 {
        struct fimc_frame *s_frame, *d_frame;
        struct fimc_vid_buffer *buf = NULL;
-       struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
        int ret = 0;
 
        s_frame = &ctx->s_frame;
@@ -419,61 +449,16 @@ static int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
                        swap(d_frame->width, d_frame->height);
                }
 
-               /* Prepare the output offset ratios for scaler. */
-               d_frame->dma_offset.y_h = d_frame->offs_h;
-               if (!variant->pix_hoff)
-                       d_frame->dma_offset.y_h *= (d_frame->fmt->depth >> 3);
-
-               d_frame->dma_offset.y_v = d_frame->offs_v;
+               /* Prepare the DMA offset ratios for scaler. */
+               fimc_prepare_dma_offset(ctx, &ctx->s_frame);
+               fimc_prepare_dma_offset(ctx, &ctx->d_frame);
 
-               d_frame->dma_offset.cb_h = d_frame->offs_h;
-               d_frame->dma_offset.cb_v = d_frame->offs_v;
-
-               d_frame->dma_offset.cr_h = d_frame->offs_h;
-               d_frame->dma_offset.cr_v = d_frame->offs_v;
-
-               if (!variant->pix_hoff && d_frame->fmt->planes_cnt == 3) {
-                       d_frame->dma_offset.cb_h >>= 1;
-                       d_frame->dma_offset.cb_v >>= 1;
-                       d_frame->dma_offset.cr_h >>= 1;
-                       d_frame->dma_offset.cr_v >>= 1;
-               }
-
-               dbg("out offset: color= %d, y_h= %d, y_v= %d",
-                       d_frame->fmt->color,
-                       d_frame->dma_offset.y_h, d_frame->dma_offset.y_v);
-
-               /* Prepare the input offset ratios for scaler. */
-               s_frame->dma_offset.y_h = s_frame->offs_h;
-               if (!variant->pix_hoff)
-                       s_frame->dma_offset.y_h *= (s_frame->fmt->depth >> 3);
-               s_frame->dma_offset.y_v = s_frame->offs_v;
-
-               s_frame->dma_offset.cb_h = s_frame->offs_h;
-               s_frame->dma_offset.cb_v = s_frame->offs_v;
-
-               s_frame->dma_offset.cr_h = s_frame->offs_h;
-               s_frame->dma_offset.cr_v = s_frame->offs_v;
-
-               if (!variant->pix_hoff && s_frame->fmt->planes_cnt == 3) {
-                       s_frame->dma_offset.cb_h >>= 1;
-                       s_frame->dma_offset.cb_v >>= 1;
-                       s_frame->dma_offset.cr_h >>= 1;
-                       s_frame->dma_offset.cr_v >>= 1;
-               }
-
-               dbg("in offset: color= %d, y_h= %d, y_v= %d",
-                       s_frame->fmt->color, s_frame->dma_offset.y_h,
-                       s_frame->dma_offset.y_v);
-
-               fimc_set_yuv_order(ctx);
-
-               /* Check against the scaler ratio. */
                if (s_frame->height > (SCALER_MAX_VRATIO * d_frame->height) ||
                    s_frame->width > (SCALER_MAX_HRATIO * d_frame->width)) {
                        err("out of scaler range");
                        return -EINVAL;
                }
+               fimc_set_yuv_order(ctx);
        }
 
        /* Input DMA mode is not allowed when the scaler is disabled. */
@@ -1495,6 +1480,7 @@ static struct samsung_fimc_variant fimc2_variant_s5p = {
 };
 
 static struct samsung_fimc_variant fimc01_variant_s5pv210 = {
+       .pix_hoff       = 1,
        .has_inp_rot    = 1,
        .has_out_rot    = 1,
        .min_inp_pixsize = 16,
@@ -1509,6 +1495,7 @@ static struct samsung_fimc_variant fimc01_variant_s5pv210 = {
 };
 
 static struct samsung_fimc_variant fimc2_variant_s5pv210 = {
+       .pix_hoff        = 1,
        .min_inp_pixsize = 16,
        .min_out_pixsize = 32,