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path: root/drivers/gpu/drm/omapdrm/dss/dispc.c
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Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/dispc.c')
-rw-r--r--drivers/gpu/drm/omapdrm/dss/dispc.c248
1 files changed, 6 insertions, 242 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index 802d3e72843b..77d10bf9285f 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -1908,230 +1908,7 @@ static s32 pixinc(int pixels, u8 ps)
return 0;
}
-static void calc_vrfb_rotation_offset(u8 rotation, bool mirror,
- u16 screen_width,
- u16 width, u16 height,
- enum omap_color_mode color_mode, bool fieldmode,
- unsigned int field_offset,
- unsigned *offset0, unsigned *offset1,
- s32 *row_inc, s32 *pix_inc, int x_predecim, int y_predecim)
-{
- u8 ps;
-
- switch (color_mode) {
- case OMAP_DSS_COLOR_YUV2:
- case OMAP_DSS_COLOR_UYVY:
- ps = 4;
- break;
- default:
- ps = color_mode_to_bpp(color_mode) / 8;
- break;
- }
-
- DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
- width, height);
-
- /*
- * field 0 = even field = bottom field
- * field 1 = odd field = top field
- */
- switch (rotation + mirror * 4) {
- case OMAP_DSS_ROT_0:
- case OMAP_DSS_ROT_180:
- /*
- * If the pixel format is YUV or UYVY divide the width
- * of the image by 2 for 0 and 180 degree rotation.
- */
- if (color_mode == OMAP_DSS_COLOR_YUV2 ||
- color_mode == OMAP_DSS_COLOR_UYVY)
- width = width >> 1;
- case OMAP_DSS_ROT_90:
- case OMAP_DSS_ROT_270:
- *offset1 = 0;
- if (field_offset)
- *offset0 = field_offset * screen_width * ps;
- else
- *offset0 = 0;
-
- *row_inc = pixinc(1 +
- (y_predecim * screen_width - x_predecim * width) +
- (fieldmode ? screen_width : 0), ps);
- *pix_inc = pixinc(x_predecim, ps);
- break;
-
- case OMAP_DSS_ROT_0 + 4:
- case OMAP_DSS_ROT_180 + 4:
- /* If the pixel format is YUV or UYVY divide the width
- * of the image by 2 for 0 degree and 180 degree
- */
- if (color_mode == OMAP_DSS_COLOR_YUV2 ||
- color_mode == OMAP_DSS_COLOR_UYVY)
- width = width >> 1;
- case OMAP_DSS_ROT_90 + 4:
- case OMAP_DSS_ROT_270 + 4:
- *offset1 = 0;
- if (field_offset)
- *offset0 = field_offset * screen_width * ps;
- else
- *offset0 = 0;
- *row_inc = pixinc(1 -
- (y_predecim * screen_width + x_predecim * width) -
- (fieldmode ? screen_width : 0), ps);
- *pix_inc = pixinc(x_predecim, ps);
- break;
-
- default:
- BUG();
- return;
- }
-}
-
-static void calc_dma_rotation_offset(u8 rotation, bool mirror,
- u16 screen_width,
- u16 width, u16 height,
- enum omap_color_mode color_mode, bool fieldmode,
- unsigned int field_offset,
- unsigned *offset0, unsigned *offset1,
- s32 *row_inc, s32 *pix_inc, int x_predecim, int y_predecim)
-{
- u8 ps;
- u16 fbw, fbh;
-
- ps = color_mode_to_bpp(color_mode) / 8;
-
- DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
- width, height);
-
- /* width & height are overlay sizes, convert to fb sizes */
-
- if (rotation == OMAP_DSS_ROT_0 || rotation == OMAP_DSS_ROT_180) {
- fbw = width;
- fbh = height;
- } else {
- fbw = height;
- fbh = width;
- }
-
- /*
- * field 0 = even field = bottom field
- * field 1 = odd field = top field
- */
- switch (rotation + mirror * 4) {
- case OMAP_DSS_ROT_0:
- *offset1 = 0;
- if (field_offset)
- *offset0 = *offset1 + field_offset * screen_width * ps;
- else
- *offset0 = *offset1;
- *row_inc = pixinc(1 +
- (y_predecim * screen_width - fbw * x_predecim) +
- (fieldmode ? screen_width : 0), ps);
- if (color_mode == OMAP_DSS_COLOR_YUV2 ||
- color_mode == OMAP_DSS_COLOR_UYVY)
- *pix_inc = pixinc(x_predecim, 2 * ps);
- else
- *pix_inc = pixinc(x_predecim, ps);
- break;
- case OMAP_DSS_ROT_90:
- *offset1 = screen_width * (fbh - 1) * ps;
- if (field_offset)
- *offset0 = *offset1 + field_offset * ps;
- else
- *offset0 = *offset1;
- *row_inc = pixinc(screen_width * (fbh * x_predecim - 1) +
- y_predecim + (fieldmode ? 1 : 0), ps);
- *pix_inc = pixinc(-x_predecim * screen_width, ps);
- break;
- case OMAP_DSS_ROT_180:
- *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
- if (field_offset)
- *offset0 = *offset1 - field_offset * screen_width * ps;
- else
- *offset0 = *offset1;
- *row_inc = pixinc(-1 -
- (y_predecim * screen_width - fbw * x_predecim) -
- (fieldmode ? screen_width : 0), ps);
- if (color_mode == OMAP_DSS_COLOR_YUV2 ||
- color_mode == OMAP_DSS_COLOR_UYVY)
- *pix_inc = pixinc(-x_predecim, 2 * ps);
- else
- *pix_inc = pixinc(-x_predecim, ps);
- break;
- case OMAP_DSS_ROT_270:
- *offset1 = (fbw - 1) * ps;
- if (field_offset)
- *offset0 = *offset1 - field_offset * ps;
- else
- *offset0 = *offset1;
- *row_inc = pixinc(-screen_width * (fbh * x_predecim - 1) -
- y_predecim - (fieldmode ? 1 : 0), ps);
- *pix_inc = pixinc(x_predecim * screen_width, ps);
- break;
-
- /* mirroring */
- case OMAP_DSS_ROT_0 + 4:
- *offset1 = (fbw - 1) * ps;
- if (field_offset)
- *offset0 = *offset1 + field_offset * screen_width * ps;
- else
- *offset0 = *offset1;
- *row_inc = pixinc(y_predecim * screen_width * 2 - 1 +
- (fieldmode ? screen_width : 0),
- ps);
- if (color_mode == OMAP_DSS_COLOR_YUV2 ||
- color_mode == OMAP_DSS_COLOR_UYVY)
- *pix_inc = pixinc(-x_predecim, 2 * ps);
- else
- *pix_inc = pixinc(-x_predecim, ps);
- break;
-
- case OMAP_DSS_ROT_90 + 4:
- *offset1 = 0;
- if (field_offset)
- *offset0 = *offset1 + field_offset * ps;
- else
- *offset0 = *offset1;
- *row_inc = pixinc(-screen_width * (fbh * x_predecim - 1) +
- y_predecim + (fieldmode ? 1 : 0),
- ps);
- *pix_inc = pixinc(x_predecim * screen_width, ps);
- break;
-
- case OMAP_DSS_ROT_180 + 4:
- *offset1 = screen_width * (fbh - 1) * ps;
- if (field_offset)
- *offset0 = *offset1 - field_offset * screen_width * ps;
- else
- *offset0 = *offset1;
- *row_inc = pixinc(1 - y_predecim * screen_width * 2 -
- (fieldmode ? screen_width : 0),
- ps);
- if (color_mode == OMAP_DSS_COLOR_YUV2 ||
- color_mode == OMAP_DSS_COLOR_UYVY)
- *pix_inc = pixinc(x_predecim, 2 * ps);
- else
- *pix_inc = pixinc(x_predecim, ps);
- break;
-
- case OMAP_DSS_ROT_270 + 4:
- *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
- if (field_offset)
- *offset0 = *offset1 - field_offset * ps;
- else
- *offset0 = *offset1;
- *row_inc = pixinc(screen_width * (fbh * x_predecim - 1) -
- y_predecim - (fieldmode ? 1 : 0),
- ps);
- *pix_inc = pixinc(-x_predecim * screen_width, ps);
- break;
-
- default:
- BUG();
- return;
- }
-}
-
-static void calc_tiler_rotation_offset(u16 screen_width, u16 width,
+static void calc_offset(u16 screen_width, u16 width,
enum omap_color_mode color_mode, bool fieldmode,
unsigned int field_offset, unsigned *offset0, unsigned *offset1,
s32 *row_inc, s32 *pix_inc, int x_predecim, int y_predecim)
@@ -2711,23 +2488,10 @@ static int dispc_ovl_setup_common(enum omap_plane_id plane,
frame_height = height;
}
- if (rotation_type == OMAP_DSS_ROT_TILER)
- calc_tiler_rotation_offset(screen_width, frame_width,
- color_mode, fieldmode, field_offset,
- &offset0, &offset1, &row_inc, &pix_inc,
- x_predecim, y_predecim);
- else if (rotation_type == OMAP_DSS_ROT_DMA)
- calc_dma_rotation_offset(rotation, mirror, screen_width,
- frame_width, frame_height,
- color_mode, fieldmode, field_offset,
- &offset0, &offset1, &row_inc, &pix_inc,
- x_predecim, y_predecim);
- else
- calc_vrfb_rotation_offset(rotation, mirror,
- screen_width, frame_width, frame_height,
- color_mode, fieldmode, field_offset,
- &offset0, &offset1, &row_inc, &pix_inc,
- x_predecim, y_predecim);
+ calc_offset(screen_width, frame_width,
+ color_mode, fieldmode, field_offset,
+ &offset0, &offset1, &row_inc, &pix_inc,
+ x_predecim, y_predecim);
DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n",
offset0, offset1, row_inc, pix_inc);
@@ -4168,7 +3932,7 @@ static const struct dispc_errata_i734_data {
.width = 1, .height = 1,
.color_mode = OMAP_DSS_COLOR_RGB24U,
.rotation = OMAP_DSS_ROT_0,
- .rotation_type = OMAP_DSS_ROT_DMA,
+ .rotation_type = OMAP_DSS_ROT_NONE,
.mirror = 0,
.pos_x = 0, .pos_y = 0,
.out_width = 0, .out_height = 0,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.