| 44,6 → 44,25 |
|---|
| int x, y; |
| }; |
| |
| /** |
| * struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size |
| * @fb_width: fbdev width |
| * @fb_height: fbdev height |
| * @surface_width: scanout buffer width |
| * @surface_height: scanout buffer height |
| * @surface_bpp: scanout buffer bpp |
| * @surface_depth: scanout buffer depth |
| * |
| * Note that the scanout surface width/height may be larger than the fbdev |
| * width/height. In case of multiple displays, the scanout surface is sized |
| * according to the largest width/height (so it is large enough for all CRTCs |
| * to scanout). But the fbdev width/height is sized to the minimum width/ |
| * height of all the displays. This ensures that fbcon fits on the smallest |
| * of the attached displays. |
| * |
| * So what is passed to drm_fb_helper_fill_var() should be fb_width/fb_height, |
| * rather than the surface size. |
| */ |
| struct drm_fb_helper_surface_size { |
| u32 fb_width; |
| u32 fb_height; |
| 85,6 → 104,20 |
|---|
| struct drm_connector *connector; |
| }; |
| |
| /** |
| * struct drm_fb_helper - helper to emulate fbdev on top of kms |
| * @fb: Scanout framebuffer object |
| * @dev: DRM device |
| * @crtc_count: number of possible CRTCs |
| * @crtc_info: per-CRTC helper state (mode, x/y offset, etc) |
| * @connector_count: number of connected connectors |
| * @connector_info_alloc_count: size of connector_info |
| * @funcs: driver callbacks for fb helper |
| * @fbdev: emulated fbdev device info struct |
| * @pseudo_palette: fake palette of 16 colors |
| * @kernel_fb_list: list_head in kernel_fb_helper_list |
| * @delayed_hotplug: was there a hotplug while kms master active? |
| */ |
| struct drm_fb_helper { |
| struct drm_framebuffer *fb; |
| struct drm_device *dev; |
| 101,8 → 134,20 |
|---|
| /* we got a hotplug but fbdev wasn't running the console |
| delay until next set_par */ |
| bool delayed_hotplug; |
| |
| /** |
| * @atomic: |
| * |
| * Use atomic updates for restore_fbdev_mode(), etc. This defaults to |
| * true if driver has DRIVER_ATOMIC feature flag, but drivers can |
| * override it to true after drm_fb_helper_init() if they support atomic |
| * modeset but do not yet advertise DRIVER_ATOMIC (note that fb-helper |
| * does not require ASYNC commits). |
| */ |
| bool atomic; |
| }; |
| |
| #ifdef CONFIG_DRM_FBDEV_EMULATION |
| void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, |
| const struct drm_fb_helper_funcs *funcs); |
| int drm_fb_helper_init(struct drm_device *dev, |
| 116,16 → 161,43 |
|---|
| int drm_fb_helper_check_var(struct fb_var_screeninfo *var, |
| struct fb_info *info); |
| |
| bool drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper); |
| int drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper); |
| |
| struct fb_info *drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper); |
| void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper); |
| void drm_fb_helper_release_fbi(struct drm_fb_helper *fb_helper); |
| void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper, |
| uint32_t fb_width, uint32_t fb_height); |
| void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, |
| uint32_t depth); |
| |
| void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper); |
| |
| ssize_t drm_fb_helper_sys_read(struct fb_info *info, char __user *buf, |
| size_t count, loff_t *ppos); |
| ssize_t drm_fb_helper_sys_write(struct fb_info *info, const char __user *buf, |
| size_t count, loff_t *ppos); |
| |
| void drm_fb_helper_sys_fillrect(struct fb_info *info, |
| const struct fb_fillrect *rect); |
| void drm_fb_helper_sys_copyarea(struct fb_info *info, |
| const struct fb_copyarea *area); |
| void drm_fb_helper_sys_imageblit(struct fb_info *info, |
| const struct fb_image *image); |
| |
| void drm_fb_helper_cfb_fillrect(struct fb_info *info, |
| const struct fb_fillrect *rect); |
| void drm_fb_helper_cfb_copyarea(struct fb_info *info, |
| const struct fb_copyarea *area); |
| void drm_fb_helper_cfb_imageblit(struct fb_info *info, |
| const struct fb_image *image); |
| |
| void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, int state); |
| |
| int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info); |
| |
| int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper); |
| bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel); |
| int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel); |
| int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper); |
| int drm_fb_helper_debug_enter(struct fb_info *info); |
| int drm_fb_helper_debug_leave(struct fb_info *info); |
| 139,4 → 211,188 |
|---|
| int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector); |
| int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper, |
| struct drm_connector *connector); |
| #else |
| static inline void drm_fb_helper_prepare(struct drm_device *dev, |
| struct drm_fb_helper *helper, |
| const struct drm_fb_helper_funcs *funcs) |
| { |
| } |
| |
| static inline int drm_fb_helper_init(struct drm_device *dev, |
| struct drm_fb_helper *helper, int crtc_count, |
| int max_conn) |
| { |
| return 0; |
| } |
| |
| static inline void drm_fb_helper_fini(struct drm_fb_helper *helper) |
| { |
| } |
| |
| static inline int drm_fb_helper_blank(int blank, struct fb_info *info) |
| { |
| return 0; |
| } |
| |
| static inline int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, |
| struct fb_info *info) |
| { |
| return 0; |
| } |
| |
| static inline int drm_fb_helper_set_par(struct fb_info *info) |
| { |
| return 0; |
| } |
| |
| static inline int drm_fb_helper_check_var(struct fb_var_screeninfo *var, |
| struct fb_info *info) |
| { |
| return 0; |
| } |
| |
| static inline int |
| drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper) |
| { |
| return 0; |
| } |
| |
| static inline struct fb_info * |
| drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper) |
| { |
| return NULL; |
| } |
| |
| static inline void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper) |
| { |
| } |
| static inline void drm_fb_helper_release_fbi(struct drm_fb_helper *fb_helper) |
| { |
| } |
| |
| static inline void drm_fb_helper_fill_var(struct fb_info *info, |
| struct drm_fb_helper *fb_helper, |
| uint32_t fb_width, uint32_t fb_height) |
| { |
| } |
| |
| static inline void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, |
| uint32_t depth) |
| { |
| } |
| |
| static inline int drm_fb_helper_setcmap(struct fb_cmap *cmap, |
| struct fb_info *info) |
| { |
| return 0; |
| } |
| |
| static inline void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper) |
| { |
| } |
| |
| static inline ssize_t drm_fb_helper_sys_read(struct fb_info *info, |
| char __user *buf, size_t count, |
| loff_t *ppos) |
| { |
| return -ENODEV; |
| } |
| |
| static inline ssize_t drm_fb_helper_sys_write(struct fb_info *info, |
| const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| return -ENODEV; |
| } |
| |
| static inline void drm_fb_helper_sys_fillrect(struct fb_info *info, |
| const struct fb_fillrect *rect) |
| { |
| } |
| |
| static inline void drm_fb_helper_sys_copyarea(struct fb_info *info, |
| const struct fb_copyarea *area) |
| { |
| } |
| |
| static inline void drm_fb_helper_sys_imageblit(struct fb_info *info, |
| const struct fb_image *image) |
| { |
| } |
| |
| static inline void drm_fb_helper_cfb_fillrect(struct fb_info *info, |
| const struct fb_fillrect *rect) |
| { |
| } |
| |
| static inline void drm_fb_helper_cfb_copyarea(struct fb_info *info, |
| const struct fb_copyarea *area) |
| { |
| } |
| |
| static inline void drm_fb_helper_cfb_imageblit(struct fb_info *info, |
| const struct fb_image *image) |
| { |
| } |
| |
| static inline void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, |
| int state) |
| { |
| } |
| |
| static inline int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) |
| { |
| return 0; |
| } |
| |
| static inline int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, |
| int bpp_sel) |
| { |
| return 0; |
| } |
| |
| static inline int |
| drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper) |
| { |
| return 0; |
| } |
| |
| static inline int drm_fb_helper_debug_enter(struct fb_info *info) |
| { |
| return 0; |
| } |
| |
| static inline int drm_fb_helper_debug_leave(struct fb_info *info) |
| { |
| return 0; |
| } |
| |
| static inline struct drm_display_mode * |
| drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, |
| int width, int height) |
| { |
| return NULL; |
| } |
| |
| static inline struct drm_display_mode * |
| drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn, |
| int width, int height) |
| { |
| return NULL; |
| } |
| |
| static inline int |
| drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, |
| struct drm_connector *connector) |
| { |
| return 0; |
| } |
| |
| static inline int |
| drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper, |
| struct drm_connector *connector) |
| { |
| return 0; |
| } |
| #endif |
| #endif |