diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/display.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/display.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/display.h b/arch/arm/plat-omap/include/plat/display.h index 5e04ddc18fa..9f30ab8d1e1 100644 --- a/arch/arm/plat-omap/include/plat/display.h +++ b/arch/arm/plat-omap/include/plat/display.h @@ -23,6 +23,7 @@ #include <linux/list.h> #include <linux/kobject.h> #include <linux/device.h> +#include <linux/notifier.h> #include <linux/platform_device.h> #include <asm/atomic.h> @@ -131,6 +132,10 @@ enum omap_dss_venc_type { enum omap_display_caps { OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE = 1 << 0, OMAP_DSS_DISPLAY_CAP_TEAR_ELIM = 1 << 1, + /* set if display supports hotplug detect, and will call + * omap_dss_notify(CONNECT/DISCONNECT) at appropriate times + */ + OMAP_DSS_DISPLAY_CAP_HPD = 1 << 2, }; enum omap_dss_update_mode { @@ -459,6 +464,7 @@ struct omap_dss_device { struct omap_overlay_manager *manager; enum omap_dss_display_state state; + struct blocking_notifier_head notifier; /* platform specific */ int (*platform_enable)(struct omap_dss_device *dssdev); @@ -514,6 +520,17 @@ struct omap_dss_driver { int (*set_wss)(struct omap_dss_device *dssdev, u32 wss); u32 (*get_wss)(struct omap_dss_device *dssdev); + + /* return raw EDID.. len indicates the max number of bytes of the + * EDID to read */ + int (*get_edid)(struct omap_dss_device *dssdev, u8 *edid, int len); + + /* is this display physically present / plugged-in? For hot-plug + * type displays (DVI, HDMI), this means is the cable plugged in. + * For displays like LCD panels, this means is the display present + * on the board. + */ + bool (*is_detected)(struct omap_dss_device *dssdev); }; int omap_dss_register_driver(struct omap_dss_driver *); @@ -532,12 +549,34 @@ struct omap_dss_device *omap_dss_find_device(void *data, int omap_dss_start_device(struct omap_dss_device *dssdev); void omap_dss_stop_device(struct omap_dss_device *dssdev); +/* the event id of the event that occurred is passed in as the second arg + * to the notifier function, and the dssdev is passed as the third. + */ +enum omap_dss_event { + OMAP_DSS_SIZE_CHANGE, + /* the CONNECT/DISCONNECT events will be sent if OMAP_DSS_DISPLAY_CAP_HPD + * flag is set in the dssdev->caps. Otherwise the user will have to poll + * for detection when a monitor is plugged/unplugged. + */ + OMAP_DSS_HOTPLUG_CONNECT, + OMAP_DSS_HOTPLUG_DISCONNECT, +}; + +void omap_dss_notify(struct omap_dss_device *dssdev, enum omap_dss_event evt); +void omap_dss_add_notify(struct omap_dss_device *dssdev, struct notifier_block *nb); +void omap_dss_remove_notify(struct omap_dss_device *dssdev, struct notifier_block *nb); + int omap_dss_get_num_overlay_managers(void); struct omap_overlay_manager *omap_dss_get_overlay_manager(int num); int omap_dss_get_num_overlays(void); struct omap_overlay *omap_dss_get_overlay(int num); +void omapdss_default_get_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings); +int omapdss_default_check_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings); +bool omapdss_default_is_detected(struct omap_dss_device *dssdev); void omapdss_default_get_resolution(struct omap_dss_device *dssdev, u16 *xres, u16 *yres); int omapdss_default_get_recommended_bpp(struct omap_dss_device *dssdev); |