diff options
Diffstat (limited to 'drivers/staging/omapdrm/omap_fb.c')
-rw-r--r-- | drivers/staging/omapdrm/omap_fb.c | 103 |
1 files changed, 80 insertions, 23 deletions
diff --git a/drivers/staging/omapdrm/omap_fb.c b/drivers/staging/omapdrm/omap_fb.c index 0b50c5b..805a18e 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); } |