diff options
Diffstat (limited to 'include/drm/drm_fb_helper.h')
| -rw-r--r-- | include/drm/drm_fb_helper.h | 95 |
1 files changed, 67 insertions, 28 deletions
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index fddd0d1af689..72032c354a30 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -30,18 +30,12 @@ #ifndef DRM_FB_HELPER_H #define DRM_FB_HELPER_H +struct drm_clip_rect; struct drm_fb_helper; -#include <drm/drm_client.h> -#include <drm/drm_crtc.h> -#include <drm/drm_device.h> #include <linux/fb.h> -#include <linux/kgdb.h> -enum mode_set_atomic { - LEAVE_ATOMIC_MODE_SET, - ENTER_ATOMIC_MODE_SET, -}; +#include <drm/drm_client.h> /** * struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size @@ -91,6 +85,20 @@ struct drm_fb_helper_funcs { */ int (*fb_probe)(struct drm_fb_helper *helper, struct drm_fb_helper_surface_size *sizes); + + /** + * @fb_dirty: + * + * Driver callback to update the framebuffer memory. If set, fbdev + * emulation will invoke this callback in regular intervals after + * the framebuffer has been written. + * + * This callback is optional. + * + * Returns: + * 0 on success, or an error code otherwise. + */ + int (*fb_dirty)(struct drm_fb_helper *helper, struct drm_clip_rect *clip); }; /** @@ -98,7 +106,7 @@ struct drm_fb_helper_funcs { * @fb: Scanout framebuffer object * @dev: DRM device * @funcs: driver callbacks for fb helper - * @fbdev: emulated fbdev device info struct + * @info: emulated fbdev device info struct * @pseudo_palette: fake palette of 16 colors * @damage_clip: clip rectangle used with deferred_io to accumulate damage to * the screen buffer @@ -129,7 +137,7 @@ struct drm_fb_helper { struct drm_framebuffer *fb; struct drm_device *dev; const struct drm_fb_helper_funcs *funcs; - struct fb_info *fbdev; + struct fb_info *info; u32 pseudo_palette[17]; struct drm_clip_rect damage_clip; spinlock_t damage_lock; @@ -186,6 +194,18 @@ struct drm_fb_helper { * See also: @deferred_setup */ int preferred_bpp; + +#ifdef CONFIG_FB_DEFERRED_IO + /** + * @fbdefio: + * + * Temporary storage for the driver's FB deferred I/O handler. If the + * driver uses the DRM fbdev emulation layer, this is set by the core + * to a generic deferred I/O handler if a driver is preferring to use + * a shadow buffer. + */ + struct fb_deferred_io fbdefio; +#endif }; static inline struct drm_fb_helper * @@ -212,7 +232,9 @@ drm_fb_helper_from_client(struct drm_client_dev *client) #ifdef CONFIG_DRM_FBDEV_EMULATION void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, + unsigned int preferred_bpp, const struct drm_fb_helper_funcs *funcs); +void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper); int drm_fb_helper_init(struct drm_device *dev, struct drm_fb_helper *helper); void drm_fb_helper_fini(struct drm_fb_helper *helper); int drm_fb_helper_blank(int blank, struct fb_info *info); @@ -224,8 +246,9 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var, 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); +struct fb_info *drm_fb_helper_alloc_info(struct drm_fb_helper *fb_helper); +void drm_fb_helper_release_info(struct drm_fb_helper *fb_helper); +void drm_fb_helper_unregister_info(struct drm_fb_helper *fb_helper); void drm_fb_helper_fill_info(struct fb_info *info, struct drm_fb_helper *fb_helper, struct drm_fb_helper_surface_size *sizes); @@ -244,6 +267,11 @@ void drm_fb_helper_sys_copyarea(struct fb_info *info, void drm_fb_helper_sys_imageblit(struct fb_info *info, const struct fb_image *image); +ssize_t drm_fb_helper_cfb_read(struct fb_info *info, char __user *buf, + size_t count, loff_t *ppos); +ssize_t drm_fb_helper_cfb_write(struct fb_info *info, const char __user *buf, + size_t count, loff_t *ppos); + 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, @@ -261,19 +289,21 @@ int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg); int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper); -int 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 drm_fb_helper_debug_enter(struct fb_info *info); int drm_fb_helper_debug_leave(struct fb_info *info); void drm_fb_helper_lastclose(struct drm_device *dev); void drm_fb_helper_output_poll_changed(struct drm_device *dev); - -void drm_fbdev_generic_setup(struct drm_device *dev, - unsigned int preferred_bpp); #else static inline void drm_fb_helper_prepare(struct drm_device *dev, - struct drm_fb_helper *helper, - const struct drm_fb_helper_funcs *funcs) + struct drm_fb_helper *helper, + unsigned int preferred_bpp, + const struct drm_fb_helper_funcs *funcs) +{ +} + +static inline void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper) { } @@ -322,12 +352,16 @@ drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper) } static inline struct fb_info * -drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper) +drm_fb_helper_alloc_info(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_info(struct drm_fb_helper *fb_helper) +{ +} + +static inline void drm_fb_helper_unregister_info(struct drm_fb_helper *fb_helper) { } @@ -389,6 +423,18 @@ static inline void drm_fb_helper_sys_imageblit(struct fb_info *info, { } +static inline ssize_t drm_fb_helper_cfb_read(struct fb_info *info, char __user *buf, + size_t count, loff_t *ppos) +{ + return -ENODEV; +} + +static inline ssize_t drm_fb_helper_cfb_write(struct fb_info *info, const char __user *buf, + size_t count, loff_t *ppos) +{ + return -ENODEV; +} + static inline void drm_fb_helper_cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) { @@ -419,8 +465,7 @@ 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) +static inline int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper) { return 0; } @@ -442,12 +487,6 @@ static inline void drm_fb_helper_lastclose(struct drm_device *dev) static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev) { } - -static inline void -drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp) -{ -} - #endif #endif |