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path: root/drivers/staging/omapdrm/omap_fb.c
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Diffstat (limited to 'drivers/staging/omapdrm/omap_fb.c')
-rw-r--r--drivers/staging/omapdrm/omap_fb.c103
1 files changed, 80 insertions, 23 deletions
diff --git a/drivers/staging/omapdrm/omap_fb.c b/drivers/staging/omapdrm/omap_fb.c
index 0b50c5b3b564..805a18e559c4 100644
--- a/drivers/staging/omapdrm/omap_fb.c
+++ b/drivers/staging/omapdrm/omap_fb.c
@@ -22,11 +22,43 @@
#include "drm_crtc.h"
#include "drm_crtc_helper.h"
-
/*
* framebuffer funcs
*/
+/* per-format info: */
+struct format {
+ enum omap_color_mode dss_format;
+ uint32_t pixel_format;
+ struct {
+ int stride_bpp; /* this times width is stride */
+ int sub_y; /* sub-sample in y dimension */
+ } planes[4];
+ bool yuv;
+};
+
+static const struct format formats[] = {
+ /* 16bpp [A]RGB: */
+ { OMAP_DSS_COLOR_RGB16, DRM_FORMAT_RGB565, {{2, 1}}, false }, /* RGB16-565 */
+ { OMAP_DSS_COLOR_RGB12U, DRM_FORMAT_RGBX4444, {{2, 1}}, false }, /* RGB12x-4444 */
+ { OMAP_DSS_COLOR_RGBX16, DRM_FORMAT_XRGB4444, {{2, 1}}, false }, /* xRGB12-4444 */
+ { OMAP_DSS_COLOR_RGBA16, DRM_FORMAT_RGBA4444, {{2, 1}}, false }, /* RGBA12-4444 */
+ { OMAP_DSS_COLOR_ARGB16, DRM_FORMAT_ARGB4444, {{2, 1}}, false }, /* ARGB16-4444 */
+ { OMAP_DSS_COLOR_XRGB16_1555, DRM_FORMAT_XRGB1555, {{2, 1}}, false }, /* xRGB15-1555 */
+ { OMAP_DSS_COLOR_ARGB16_1555, DRM_FORMAT_ARGB1555, {{2, 1}}, false }, /* ARGB16-1555 */
+ /* 24bpp RGB: */
+ { OMAP_DSS_COLOR_RGB24P, DRM_FORMAT_RGB888, {{3, 1}}, false }, /* RGB24-888 */
+ /* 32bpp [A]RGB: */
+ { OMAP_DSS_COLOR_RGBX32, DRM_FORMAT_RGBX8888, {{4, 1}}, false }, /* RGBx24-8888 */
+ { OMAP_DSS_COLOR_RGB24U, DRM_FORMAT_XRGB8888, {{4, 1}}, false }, /* xRGB24-8888 */
+ { OMAP_DSS_COLOR_RGBA32, DRM_FORMAT_RGBA8888, {{4, 1}}, false }, /* RGBA32-8888 */
+ { OMAP_DSS_COLOR_ARGB32, DRM_FORMAT_ARGB8888, {{4, 1}}, false }, /* ARGB32-8888 */
+ /* YUV: */
+ { OMAP_DSS_COLOR_NV12, DRM_FORMAT_NV12, {{1, 1}, {1, 2}}, true },
+ { OMAP_DSS_COLOR_YUV2, DRM_FORMAT_YUYV, {{2, 1}}, true },
+ { OMAP_DSS_COLOR_UYVY, DRM_FORMAT_UYVY, {{2, 1}}, true },
+};
+
#define to_omap_framebuffer(x) container_of(x, struct omap_framebuffer, base)
struct omap_framebuffer {
@@ -34,6 +66,7 @@ struct omap_framebuffer {
struct drm_gem_object *bo;
int size;
dma_addr_t paddr;
+ const struct format *format;
};
static int omap_framebuffer_create_handle(struct drm_framebuffer *fb,
@@ -91,7 +124,7 @@ int omap_framebuffer_get_buffer(struct drm_framebuffer *fb, int x, int y,
int bpp = fb->bits_per_pixel / 8;
unsigned long offset;
- offset = (x * bpp) + (y * fb->pitch);
+ offset = (x * bpp) + (y * fb->pitches[0]);
if (vaddr) {
void *bo_vaddr = omap_gem_vaddr(omap_fb->bo);
@@ -105,7 +138,7 @@ int omap_framebuffer_get_buffer(struct drm_framebuffer *fb, int x, int y,
}
*paddr = omap_fb->paddr + offset;
- *screen_width = fb->pitch / bpp;
+ *screen_width = fb->pitches[0] / bpp;
return omap_fb->size - offset;
}
@@ -171,39 +204,61 @@ void omap_framebuffer_flush(struct drm_framebuffer *fb,
}
struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
- struct drm_file *file, struct drm_mode_fb_cmd *mode_cmd)
+ struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd)
{
- struct drm_gem_object *bo;
+ struct drm_gem_object *bos[4];
struct drm_framebuffer *fb;
- bo = drm_gem_object_lookup(dev, file, mode_cmd->handle);
- if (!bo) {
- return ERR_PTR(-ENOENT);
- }
- fb = omap_framebuffer_init(dev, mode_cmd, bo);
- if (!fb) {
- return ERR_PTR(-ENOMEM);
+ int ret;
+
+ ret = objects_lookup(dev, file, mode_cmd->pixel_format,
+ bos, mode_cmd->handles);
+ if (ret)
+ return ERR_PTR(ret);
+
+ fb = omap_framebuffer_init(dev, mode_cmd, bos);
+ if (IS_ERR(fb)) {
+ int i, n = drm_format_num_planes(mode_cmd->pixel_format);
+ for (i = 0; i < n; i++)
+ drm_gem_object_unreference_unlocked(bos[i]);
+ return fb;
}
return fb;
}
struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
- struct drm_mode_fb_cmd *mode_cmd, struct drm_gem_object *bo)
+ struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
{
struct omap_framebuffer *omap_fb;
struct drm_framebuffer *fb = NULL;
- int size, ret;
+ const struct format *format = NULL;
+ int i, size, ret;
- DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%d)",
+ DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%4.4s)",
dev, mode_cmd, mode_cmd->width, mode_cmd->height,
- mode_cmd->bpp);
+ (char *)&mode_cmd->pixel_format);
+
+ for (i = 0; i < ARRAY_SIZE(formats); i++) {
+ if (formats[i].pixel_format == mode_cmd->pixel_format) {
+ format = &formats[i];
+ break;
+ }
+ }
+
+ if (!format) {
+ dev_err(dev->dev, "unsupported pixel format: %4.4s\n",
+ (char *)&mode_cmd->pixel_format);
+ ret = -EINVAL;
+ goto fail;
+ }
/* in case someone tries to feed us a completely bogus stride: */
- mode_cmd->pitch = align_pitch(mode_cmd->pitch,
- mode_cmd->width, mode_cmd->bpp);
+ mode_cmd->pitches[0] = align_pitch(mode_cmd->pitches[0],
+ mode_cmd->width, format->planes[0].stride_bpp);
omap_fb = kzalloc(sizeof(*omap_fb), GFP_KERNEL);
if (!omap_fb) {
dev_err(dev->dev, "could not allocate fb\n");
+ ret = -ENOMEM;
goto fail;
}
@@ -216,17 +271,19 @@ struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
DBG("create: FB ID: %d (%p)", fb->base.id, fb);
- size = PAGE_ALIGN(mode_cmd->pitch * mode_cmd->height);
+ size = PAGE_ALIGN(mode_cmd->pitches[0] * mode_cmd->height);
- if (size > bo->size) {
+ if (size > bos[0]->size) {
dev_err(dev->dev, "provided buffer object is too small!\n");
+ ret = -EINVAL;
goto fail;
}
- omap_fb->bo = bo;
+ omap_fb->bo = bos[0];
omap_fb->size = size;
- if (omap_gem_get_paddr(bo, &omap_fb->paddr, true)) {
+ ret = omap_gem_get_paddr(bos[0], &omap_fb->paddr, true);
+ if (ret) {
dev_err(dev->dev, "could not map (paddr)!\n");
goto fail;
}
@@ -239,5 +296,5 @@ fail:
if (fb) {
omap_framebuffer_destroy(fb);
}
- return NULL;
+ return ERR_PTR(ret);
}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-24 02:29:53 +0200