diff options
Diffstat (limited to 'drivers/staging/omapdrm/omap_fb.c')
| -rw-r--r-- | drivers/staging/omapdrm/omap_fb.c | 471 |
1 files changed, 0 insertions, 471 deletions
diff --git a/drivers/staging/omapdrm/omap_fb.c b/drivers/staging/omapdrm/omap_fb.c deleted file mode 100644 index bb4969942148..000000000000 --- a/drivers/staging/omapdrm/omap_fb.c +++ /dev/null @@ -1,471 +0,0 @@ -/* - * drivers/staging/omapdrm/omap_fb.c - * - * Copyright (C) 2011 Texas Instruments - * Author: Rob Clark <rob@ti.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "omap_drv.h" -#include "omap_dmm_tiler.h" - -#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 }, -}; - -/* convert from overlay's pixel formats bitmask to an array of fourcc's */ -uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats, - uint32_t max_formats, enum omap_color_mode supported_modes) -{ - uint32_t nformats = 0; - int i = 0; - - for (i = 0; i < ARRAY_SIZE(formats) && nformats < max_formats; i++) - if (formats[i].dss_format & supported_modes) - pixel_formats[nformats++] = formats[i].pixel_format; - - return nformats; -} - -/* per-plane info for the fb: */ -struct plane { - struct drm_gem_object *bo; - uint32_t pitch; - uint32_t offset; - dma_addr_t paddr; -}; - -#define to_omap_framebuffer(x) container_of(x, struct omap_framebuffer, base) - -struct omap_framebuffer { - struct drm_framebuffer base; - const struct format *format; - struct plane planes[4]; -}; - -static int omap_framebuffer_create_handle(struct drm_framebuffer *fb, - struct drm_file *file_priv, - unsigned int *handle) -{ - struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); - return drm_gem_handle_create(file_priv, - omap_fb->planes[0].bo, handle); -} - -static void omap_framebuffer_destroy(struct drm_framebuffer *fb) -{ - struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); - int i, n = drm_format_num_planes(fb->pixel_format); - - DBG("destroy: FB ID: %d (%p)", fb->base.id, fb); - - drm_framebuffer_cleanup(fb); - - for (i = 0; i < n; i++) { - struct plane *plane = &omap_fb->planes[i]; - if (plane->bo) - drm_gem_object_unreference_unlocked(plane->bo); - } - - kfree(omap_fb); -} - -static int omap_framebuffer_dirty(struct drm_framebuffer *fb, - struct drm_file *file_priv, unsigned flags, unsigned color, - struct drm_clip_rect *clips, unsigned num_clips) -{ - int i; - - for (i = 0; i < num_clips; i++) { - omap_framebuffer_flush(fb, clips[i].x1, clips[i].y1, - clips[i].x2 - clips[i].x1, - clips[i].y2 - clips[i].y1); - } - - return 0; -} - -static const struct drm_framebuffer_funcs omap_framebuffer_funcs = { - .create_handle = omap_framebuffer_create_handle, - .destroy = omap_framebuffer_destroy, - .dirty = omap_framebuffer_dirty, -}; - -static uint32_t get_linear_addr(struct plane *plane, - const struct format *format, int n, int x, int y) -{ - uint32_t offset; - - offset = plane->offset + - (x * format->planes[n].stride_bpp) + - (y * plane->pitch / format->planes[n].sub_y); - - return plane->paddr + offset; -} - -/* update ovl info for scanout, handles cases of multi-planar fb's, etc. - */ -void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, - struct omap_drm_window *win, struct omap_overlay_info *info) -{ - struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); - const struct format *format = omap_fb->format; - struct plane *plane = &omap_fb->planes[0]; - uint32_t x, y, orient = 0; - - info->color_mode = format->dss_format; - - info->pos_x = win->crtc_x; - info->pos_y = win->crtc_y; - info->out_width = win->crtc_w; - info->out_height = win->crtc_h; - info->width = win->src_w; - info->height = win->src_h; - - x = win->src_x; - y = win->src_y; - - if (omap_gem_flags(plane->bo) & OMAP_BO_TILED) { - uint32_t w = win->src_w; - uint32_t h = win->src_h; - - switch (win->rotation & 0xf) { - default: - dev_err(fb->dev->dev, "invalid rotation: %02x", - (uint32_t)win->rotation); - /* fallthru to default to no rotation */ - case 0: - case BIT(DRM_ROTATE_0): - orient = 0; - break; - case BIT(DRM_ROTATE_90): - orient = MASK_XY_FLIP | MASK_X_INVERT; - break; - case BIT(DRM_ROTATE_180): - orient = MASK_X_INVERT | MASK_Y_INVERT; - break; - case BIT(DRM_ROTATE_270): - orient = MASK_XY_FLIP | MASK_Y_INVERT; - break; - } - - if (win->rotation & BIT(DRM_REFLECT_X)) - orient ^= MASK_X_INVERT; - - if (win->rotation & BIT(DRM_REFLECT_Y)) - orient ^= MASK_Y_INVERT; - - /* adjust x,y offset for flip/invert: */ - if (orient & MASK_XY_FLIP) - swap(w, h); - if (orient & MASK_Y_INVERT) - y += h - 1; - if (orient & MASK_X_INVERT) - x += w - 1; - - omap_gem_rotated_paddr(plane->bo, orient, x, y, &info->paddr); - info->rotation_type = OMAP_DSS_ROT_TILER; - info->screen_width = omap_gem_tiled_stride(plane->bo, orient); - } else { - info->paddr = get_linear_addr(plane, format, 0, x, y); - info->rotation_type = OMAP_DSS_ROT_DMA; - info->screen_width = plane->pitch; - } - - /* convert to pixels: */ - info->screen_width /= format->planes[0].stride_bpp; - - if (format->dss_format == OMAP_DSS_COLOR_NV12) { - plane = &omap_fb->planes[1]; - - if (info->rotation_type == OMAP_DSS_ROT_TILER) { - WARN_ON(!(omap_gem_flags(plane->bo) & OMAP_BO_TILED)); - omap_gem_rotated_paddr(plane->bo, orient, - x/2, y/2, &info->p_uv_addr); - } else { - info->p_uv_addr = get_linear_addr(plane, format, 1, x, y); - } - } else { - info->p_uv_addr = 0; - } -} - -/* Call for unpin 'a' (if not NULL), and pin 'b' (if not NULL). Although - * buffers to unpin are just pushed to the unpin fifo so that the - * caller can defer unpin until vblank. - * - * Note if this fails (ie. something went very wrong!), all buffers are - * unpinned, and the caller disables the overlay. We could have tried - * to revert back to the previous set of pinned buffers but if things are - * hosed there is no guarantee that would succeed. - */ -int omap_framebuffer_replace(struct drm_framebuffer *a, - struct drm_framebuffer *b, void *arg, - void (*unpin)(void *arg, struct drm_gem_object *bo)) -{ - int ret = 0, i, na, nb; - struct omap_framebuffer *ofba = to_omap_framebuffer(a); - struct omap_framebuffer *ofbb = to_omap_framebuffer(b); - uint32_t pinned_mask = 0; - - na = a ? drm_format_num_planes(a->pixel_format) : 0; - nb = b ? drm_format_num_planes(b->pixel_format) : 0; - - for (i = 0; i < max(na, nb); i++) { - struct plane *pa, *pb; - - pa = (i < na) ? &ofba->planes[i] : NULL; - pb = (i < nb) ? &ofbb->planes[i] : NULL; - - if (pa) - unpin(arg, pa->bo); - - if (pb && !ret) { - ret = omap_gem_get_paddr(pb->bo, &pb->paddr, true); - if (!ret) { - omap_gem_dma_sync(pb->bo, DMA_TO_DEVICE); - pinned_mask |= (1 << i); - } - } - } - - if (ret) { - /* something went wrong.. unpin what has been pinned */ - for (i = 0; i < nb; i++) { - if (pinned_mask & (1 << i)) { - struct plane *pb = &ofba->planes[i]; - unpin(arg, pb->bo); - } - } - } - - return ret; -} - -struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p) -{ - struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); - if (p >= drm_format_num_planes(fb->pixel_format)) - return NULL; - return omap_fb->planes[p].bo; -} - -/* iterate thru all the connectors, returning ones that are attached - * to the same fb.. - */ -struct drm_connector *omap_framebuffer_get_next_connector( - struct drm_framebuffer *fb, struct drm_connector *from) -{ - struct drm_device *dev = fb->dev; - struct list_head *connector_list = &dev->mode_config.connector_list; - struct drm_connector *connector = from; - - if (!from) - return list_first_entry(connector_list, typeof(*from), head); - - list_for_each_entry_from(connector, connector_list, head) { - if (connector != from) { - struct drm_encoder *encoder = connector->encoder; - struct drm_crtc *crtc = encoder ? encoder->crtc : NULL; - if (crtc && crtc->fb == fb) - return connector; - - } - } - - return NULL; -} - -/* flush an area of the framebuffer (in case of manual update display that - * is not automatically flushed) - */ -void omap_framebuffer_flush(struct drm_framebuffer *fb, - int x, int y, int w, int h) -{ - struct drm_connector *connector = NULL; - - VERB("flush: %d,%d %dx%d, fb=%p", x, y, w, h, fb); - - while ((connector = omap_framebuffer_get_next_connector(fb, connector))) { - /* only consider connectors that are part of a chain */ - if (connector->encoder && connector->encoder->crtc) { - /* TODO: maybe this should propagate thru the crtc who - * could do the coordinate translation.. - */ - struct drm_crtc *crtc = connector->encoder->crtc; - int cx = max(0, x - crtc->x); - int cy = max(0, y - crtc->y); - int cw = w + (x - crtc->x) - cx; - int ch = h + (y - crtc->y) - cy; - - omap_connector_flush(connector, cx, cy, cw, ch); - } - } -} - -#ifdef CONFIG_DEBUG_FS -void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m) -{ - struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); - int i, n = drm_format_num_planes(fb->pixel_format); - - seq_printf(m, "fb: %dx%d@%4.4s\n", fb->width, fb->height, - (char *)&fb->pixel_format); - - for (i = 0; i < n; i++) { - struct plane *plane = &omap_fb->planes[i]; - seq_printf(m, " %d: offset=%d pitch=%d, obj: ", - i, plane->offset, plane->pitch); - omap_gem_describe(plane->bo, m); - } -} -#endif - -struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev, - struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd) -{ - struct drm_gem_object *bos[4]; - struct drm_framebuffer *fb; - 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_cmd2 *mode_cmd, struct drm_gem_object **bos) -{ - struct omap_framebuffer *omap_fb; - struct drm_framebuffer *fb = NULL; - const struct format *format = NULL; - int ret, i, n = drm_format_num_planes(mode_cmd->pixel_format); - - DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%4.4s)", - dev, mode_cmd, mode_cmd->width, mode_cmd->height, - (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; - } - - omap_fb = kzalloc(sizeof(*omap_fb), GFP_KERNEL); - if (!omap_fb) { - ret = -ENOMEM; - goto fail; - } - - fb = &omap_fb->base; - ret = drm_framebuffer_init(dev, fb, &omap_framebuffer_funcs); - if (ret) { - dev_err(dev->dev, "framebuffer init failed: %d\n", ret); - goto fail; - } - - DBG("create: FB ID: %d (%p)", fb->base.id, fb); - - omap_fb->format = format; - - for (i = 0; i < n; i++) { - struct plane *plane = &omap_fb->planes[i]; - int size, pitch = mode_cmd->pitches[i]; - - if (pitch < (mode_cmd->width * format->planes[i].stride_bpp)) { - dev_err(dev->dev, "provided buffer pitch is too small! %d < %d\n", - pitch, mode_cmd->width * format->planes[i].stride_bpp); - ret = -EINVAL; - goto fail; - } - - size = pitch * mode_cmd->height / format->planes[i].sub_y; - - if (size > (omap_gem_mmap_size(bos[i]) - mode_cmd->offsets[i])) { - dev_err(dev->dev, "provided buffer object is too small! %d < %d\n", - bos[i]->size - mode_cmd->offsets[i], size); - ret = -EINVAL; - goto fail; - } - - plane->bo = bos[i]; - plane->offset = mode_cmd->offsets[i]; - plane->pitch = pitch; - plane->paddr = 0; - } - - drm_helper_mode_fill_fb_struct(fb, mode_cmd); - - return fb; - -fail: - if (fb) - omap_framebuffer_destroy(fb); - - return ERR_PTR(ret); -} |