diff options
Diffstat (limited to '0009-bootsplash.patch')
| -rw-r--r--[-rwxr-xr-x] | 0009-bootsplash.patch | 339 |
1 files changed, 300 insertions, 39 deletions
diff --git a/0009-bootsplash.patch b/0009-bootsplash.patch index 216953762e2e..2785c5e65277 100755..100644 --- a/0009-bootsplash.patch +++ b/0009-bootsplash.patch @@ -1,66 +1,327 @@ diff --git a/drivers/video/fbdev/core/bootsplash.c b/drivers/video/fbdev/core/bootsplash.c -index 843c5400fefc..815b007f81ca 100644 +index 815b007f81ca..c8642142cfea 100644 --- a/drivers/video/fbdev/core/bootsplash.c +++ b/drivers/video/fbdev/core/bootsplash.c -@@ -112,6 +112,8 @@ void bootsplash_render_full(struct fb_info *info) +@@ -53,6 +53,14 @@ static void splash_callback_redraw_vc(struct work_struct *ignored) + console_unlock(); + } + ++static void splash_callback_animation(struct work_struct *ignored) ++{ ++ if (bootsplash_would_render_now()) { ++ /* This will also re-schedule this delayed worker */ ++ splash_callback_redraw_vc(ignored); ++ } ++} ++ + + static bool is_fb_compatible(const struct fb_info *info) + { +@@ -103,17 +111,44 @@ static bool is_fb_compatible(const struct fb_info *info) + */ + void bootsplash_render_full(struct fb_info *info) + { ++ bool is_update = false; ++ + mutex_lock(&splash_state.data_lock); + +- if (!is_fb_compatible(info)) +- goto out; ++ /* ++ * If we've painted on this FB recently, we don't have to do ++ * the sanity checks and background drawing again. ++ */ ++ if (splash_state.splash_fb == info) ++ is_update = true; ++ ++ ++ if (!is_update) { ++ /* Check whether we actually support this FB. */ ++ splash_state.splash_fb = NULL; ++ ++ if (!is_fb_compatible(info)) ++ goto out; ++ ++ /* Draw the background only once */ ++ bootsplash_do_render_background(info, splash_state.file); + +- bootsplash_do_render_background(info, splash_state.file); ++ /* Mark this FB as last seen */ ++ splash_state.splash_fb = info; ++ } - bootsplash_do_render_pictures(info, splash_state.file); +- bootsplash_do_render_pictures(info, splash_state.file); ++ bootsplash_do_render_pictures(info, splash_state.file, is_update); -+ bootsplash_do_render_flush(info); + bootsplash_do_render_flush(info); + ++ bootsplash_do_step_animations(splash_state.file); ++ ++ /* Schedule update for animated splash screens */ ++ if (splash_state.file->frame_ms > 0) ++ schedule_delayed_work(&splash_state.dwork_animation, ++ msecs_to_jiffies( ++ splash_state.file->frame_ms)); + out: mutex_unlock(&splash_state.data_lock); } +@@ -169,8 +204,14 @@ void bootsplash_enable(void) + + was_enabled = test_and_set_bit(0, &splash_state.enabled); + +- if (!was_enabled) ++ if (!was_enabled) { ++ /* Force a full redraw when the splash is re-activated */ ++ mutex_lock(&splash_state.data_lock); ++ splash_state.splash_fb = NULL; ++ mutex_unlock(&splash_state.data_lock); ++ + schedule_work(&splash_state.work_redraw_vc); ++ } + } + + +@@ -227,6 +268,14 @@ ATTRIBUTE_GROUPS(splash_dev); + */ + static int splash_resume(struct device *device) + { ++ /* ++ * Force full redraw on resume since we've probably lost the ++ * framebuffer's contents meanwhile ++ */ ++ mutex_lock(&splash_state.data_lock); ++ splash_state.splash_fb = NULL; ++ mutex_unlock(&splash_state.data_lock); ++ + if (bootsplash_would_render_now()) + schedule_work(&splash_state.work_redraw_vc); + +@@ -235,6 +284,7 @@ static int splash_resume(struct device *device) + + static int splash_suspend(struct device *device) + { ++ cancel_delayed_work_sync(&splash_state.dwork_animation); + cancel_work_sync(&splash_state.work_redraw_vc); + + return 0; +@@ -296,6 +346,8 @@ void bootsplash_init(void) + set_bit(0, &splash_state.enabled); + + INIT_WORK(&splash_state.work_redraw_vc, splash_callback_redraw_vc); ++ INIT_DELAYED_WORK(&splash_state.dwork_animation, ++ splash_callback_animation); + + + if (!splash_state.bootfile || !strlen(splash_state.bootfile)) diff --git a/drivers/video/fbdev/core/bootsplash_internal.h b/drivers/video/fbdev/core/bootsplash_internal.h -index 71e2a27ac0b8..0acb383aa4e3 100644 +index 0acb383aa4e3..b3a74835d90f 100644 --- a/drivers/video/fbdev/core/bootsplash_internal.h +++ b/drivers/video/fbdev/core/bootsplash_internal.h -@@ -89,6 +89,7 @@ void bootsplash_do_render_background(struct fb_info *info, +@@ -37,6 +37,8 @@ struct splash_pic_priv { + + struct splash_blob_priv *blobs; + u16 blobs_loaded; ++ ++ u16 anim_nextframe; + }; + + +@@ -45,6 +47,12 @@ struct splash_file_priv { + const struct splash_file_header *header; + + struct splash_pic_priv *pics; ++ ++ /* ++ * A local copy of the frame delay in the header. ++ * We modify it to keep the code simple. ++ */ ++ u16 frame_ms; + }; + + +@@ -71,6 +79,7 @@ struct splash_priv { + struct platform_device *splash_device; + + struct work_struct work_redraw_vc; ++ struct delayed_work dwork_animation; + + /* Splash data structures including lock for everything below */ + struct mutex data_lock; +@@ -88,8 +97,10 @@ struct splash_priv { + void bootsplash_do_render_background(struct fb_info *info, const struct splash_file_priv *fp); void bootsplash_do_render_pictures(struct fb_info *info, - const struct splash_file_priv *fp); -+void bootsplash_do_render_flush(struct fb_info *info); +- const struct splash_file_priv *fp); ++ const struct splash_file_priv *fp, ++ bool is_update); + void bootsplash_do_render_flush(struct fb_info *info); ++void bootsplash_do_step_animations(struct splash_file_priv *fp); void bootsplash_free_file(struct splash_file_priv *fp); +diff --git a/drivers/video/fbdev/core/bootsplash_load.c b/drivers/video/fbdev/core/bootsplash_load.c +index fd807571ab7d..1f661b2d4cc9 100644 +--- a/drivers/video/fbdev/core/bootsplash_load.c ++++ b/drivers/video/fbdev/core/bootsplash_load.c +@@ -71,6 +71,7 @@ struct splash_file_priv *bootsplash_load_firmware(struct device *device, + { + const struct firmware *fw; + struct splash_file_priv *fp; ++ bool have_anim = false; + unsigned int i; + const u8 *walker; + +@@ -135,6 +136,13 @@ struct splash_file_priv *bootsplash_load_firmware(struct device *device, + goto err; + } + ++ if (ph->anim_type > SPLASH_ANIM_LOOP_FORWARD) { ++ pr_warn("Picture %u: Unsupported animation type %u.\n", ++ i, ph->anim_type); ++ ++ ph->anim_type = SPLASH_ANIM_NONE; ++ } ++ + pp->pic_header = ph; + pp->blobs = vzalloc(ph->num_blobs + * sizeof(struct splash_blob_priv)); +@@ -202,6 +210,7 @@ struct splash_file_priv *bootsplash_load_firmware(struct device *device, + /* Walk over pictures and ensure all blob slots are filled */ + for (i = 0; i < fp->header->num_pics; i++) { + struct splash_pic_priv *pp = &fp->pics[i]; ++ const struct splash_pic_header *ph = pp->pic_header; + + if (pp->blobs_loaded != pp->pic_header->num_blobs) { + pr_err("Picture %u doesn't have all blob slots filled.\n", +@@ -209,8 +218,20 @@ struct splash_file_priv *bootsplash_load_firmware(struct device *device, + + goto err; + } ++ ++ if (ph->anim_type ++ && ph->num_blobs > 1 ++ && ph->anim_loop < pp->blobs_loaded) ++ have_anim = true; + } + ++ if (!have_anim) ++ /* Disable animation timer if there is nothing to animate */ ++ fp->frame_ms = 0; ++ else ++ /* Enforce minimum delay between frames */ ++ fp->frame_ms = max((u16)20, fp->header->frame_ms); ++ + pr_info("Loaded (%ld bytes, %u pics, %u blobs).\n", + fw->size, + fp->header->num_pics, diff --git a/drivers/video/fbdev/core/bootsplash_render.c b/drivers/video/fbdev/core/bootsplash_render.c -index 2ae36949d0e3..8c09c306ff67 100644 +index 07e3a4eab811..76033606ca8a 100644 --- a/drivers/video/fbdev/core/bootsplash_render.c +++ b/drivers/video/fbdev/core/bootsplash_render.c -@@ -186,3 +186,36 @@ void bootsplash_do_render_pictures(struct fb_info *info, - pp->pic_header->width, pp->pic_header->height); +@@ -148,7 +148,8 @@ void bootsplash_do_render_background(struct fb_info *info, + + + void bootsplash_do_render_pictures(struct fb_info *info, +- const struct splash_file_priv *fp) ++ const struct splash_file_priv *fp, ++ bool is_update) + { + unsigned int i; + +@@ -161,7 +162,11 @@ void bootsplash_do_render_pictures(struct fb_info *info, + if (pp->blobs_loaded < 1) + continue; + +- bp = &pp->blobs[0]; ++ /* Skip static pictures when refreshing animations */ ++ if (ph->anim_type == SPLASH_ANIM_NONE && is_update) ++ continue; ++ ++ bp = &pp->blobs[pp->anim_nextframe]; + + if (!bp || bp->blob_header->type != 0) + continue; +@@ -351,3 +356,24 @@ void bootsplash_do_render_flush(struct fb_info *info) + info->fbops->fb_copyarea(info, &area); } } + + -+void bootsplash_do_render_flush(struct fb_info *info) ++void bootsplash_do_step_animations(struct splash_file_priv *fp) +{ -+ /* -+ * FB drivers using deferred_io (such as Xen) need to sync the -+ * screen after modifying its contents. When the FB is mmap()ed -+ * from userspace, this happens via a dirty pages callback, but -+ * when modifying the FB from the kernel, there is no such thing. -+ * -+ * So let's issue a fake fb_copyarea (copying the FB onto itself) -+ * to trick the FB driver into syncing the screen. -+ * -+ * A few DRM drivers' FB implementations are broken by not using -+ * deferred_io when they really should - we match on the known -+ * bad ones manually for now. -+ */ -+ if (info->fbdefio -+ || !strcmp(info->fix.id, "astdrmfb") -+ || !strcmp(info->fix.id, "cirrusdrmfb") -+ || !strcmp(info->fix.id, "mgadrmfb")) { -+ struct fb_copyarea area; -+ -+ area.dx = 0; -+ area.dy = 0; -+ area.width = info->var.xres; -+ area.height = info->var.yres; -+ area.sx = 0; -+ area.sy = 0; -+ -+ info->fbops->fb_copyarea(info, &area); ++ unsigned int i; ++ ++ /* Step every animation once */ ++ for (i = 0; i < fp->header->num_pics; i++) { ++ struct splash_pic_priv *pp = &fp->pics[i]; ++ ++ if (pp->blobs_loaded < 2 ++ || pp->pic_header->anim_loop > pp->blobs_loaded) ++ continue; ++ ++ if (pp->pic_header->anim_type == SPLASH_ANIM_LOOP_FORWARD) { ++ pp->anim_nextframe++; ++ if (pp->anim_nextframe >= pp->pic_header->num_blobs) ++ pp->anim_nextframe = pp->pic_header->anim_loop; ++ } + } +} +diff --git a/include/uapi/linux/bootsplash_file.h b/include/uapi/linux/bootsplash_file.h +index 71cedcc68933..b3af0a3c6487 100644 +--- a/include/uapi/linux/bootsplash_file.h ++++ b/include/uapi/linux/bootsplash_file.h +@@ -77,7 +77,17 @@ struct splash_file_header { + uint16_t num_blobs; + uint8_t num_pics; + +- uint8_t padding[103]; ++ uint8_t unused_1; ++ ++ /* ++ * Milliseconds to wait before painting the next frame in ++ * an animation. ++ * This is actually a minimum, as the system is allowed to ++ * stall for longer between frames. ++ */ ++ uint16_t frame_ms; ++ ++ uint8_t padding[100]; + } __attribute__((__packed__)); + + +@@ -116,7 +126,23 @@ struct splash_pic_header { + */ + uint16_t position_offset; + +- uint8_t padding[24]; ++ /* ++ * Animation type. ++ * 0 - off ++ * 1 - forward loop ++ */ ++ uint8_t anim_type; ++ ++ /* ++ * Animation loop point. ++ * Actual meaning depends on animation type: ++ * Type 0 - Unused ++ * 1 - Frame at which to restart the forward loop ++ * (allowing for "intro" frames) ++ */ ++ uint8_t anim_loop; ++ ++ uint8_t padding[22]; + } __attribute__((__packed__)); + + +@@ -158,4 +184,9 @@ enum splash_position { + SPLASH_POS_FLAG_CORNER = 0x10, + }; + ++enum splash_anim_type { ++ SPLASH_ANIM_NONE = 0, ++ SPLASH_ANIM_LOOP_FORWARD = 1, ++}; ++ + #endif |