From 903d9231d6f998657cc80ee6f20ded4df68e691b Mon Sep 17 00:00:00 2001 From: Alan Hourihane Date: Tue, 11 Mar 2008 20:29:37 +0000 Subject: Add support for monitor hotplug signals/waits Also adjust i915 irq handling as it follows the 16bit'ism's of the i8xx series. --- linux-core/drmP.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'linux-core/drmP.h') diff --git a/linux-core/drmP.h b/linux-core/drmP.h index 47974856..7b21f8a1 100644 --- a/linux-core/drmP.h +++ b/linux-core/drmP.h @@ -591,6 +591,13 @@ struct drm_vbl_sig { struct task_struct *task; }; +struct drm_hotplug_sig { + struct list_head head; + unsigned int counter; + struct siginfo info; + struct task_struct *task; +}; + /* location of GART table */ #define DRM_ATI_GART_MAIN 1 #define DRM_ATI_GART_FB 2 @@ -867,6 +874,15 @@ struct drm_device { struct work_struct work; + /** \name HOTPLUG IRQ support */ + /*@{ */ + wait_queue_head_t hotplug_queue; /**< HOTPLUG wait queue */ + spinlock_t hotplug_lock; + struct list_head *hotplug_sigs; /**< signal list to send on HOTPLUG */ + atomic_t hotplug_signal_pending; /* number of signals pending on all crtcs*/ + + /*@} */ + /** \name VBLANK IRQ support */ /*@{ */ @@ -1193,13 +1209,17 @@ extern void drm_driver_irq_preinstall(struct drm_device *dev); extern void drm_driver_irq_postinstall(struct drm_device *dev); extern void drm_driver_irq_uninstall(struct drm_device *dev); +extern int drm_hotplug_init(struct drm_device *dev); +extern int drm_wait_hotplug(struct drm_device *dev, void *data, struct drm_file *filp); extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); extern int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *filp); +extern int drm_wait_hotplug(struct drm_device *dev, void *data, struct drm_file *filp); extern int drm_vblank_wait(struct drm_device * dev, unsigned int *vbl_seq); extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*)); extern u32 drm_vblank_count(struct drm_device *dev, int crtc); extern void drm_update_vblank_count(struct drm_device *dev, int crtc); extern void drm_handle_vblank(struct drm_device *dev, int crtc); +extern void drm_handle_hotplug(struct drm_device *dev); extern int drm_vblank_get(struct drm_device *dev, int crtc); extern void drm_vblank_put(struct drm_device *dev, int crtc); -- cgit v1.2.3