diff options
Diffstat (limited to 'shared-core/mach64_irq.c')
| -rw-r--r-- | shared-core/mach64_irq.c | 45 |
1 files changed, 31 insertions, 14 deletions
diff --git a/shared-core/mach64_irq.c b/shared-core/mach64_irq.c index 2d522a6c..57879e8d 100644 --- a/shared-core/mach64_irq.c +++ b/shared-core/mach64_irq.c @@ -71,11 +71,10 @@ irqreturn_t mach64_driver_irq_handler(DRM_IRQ_ARGS) u32 mach64_get_vblank_counter(struct drm_device * dev, int crtc) { const drm_mach64_private_t *const dev_priv = dev->dev_private; - - if (crtc != 0) { + + if (crtc != 0) return 0; - } - + return atomic_read(&dev_priv->vbl_received); } @@ -83,14 +82,15 @@ int mach64_enable_vblank(struct drm_device * dev, int crtc) { drm_mach64_private_t *dev_priv = dev->dev_private; u32 status = MACH64_READ(MACH64_CRTC_INT_CNTL); - + if (crtc != 0) { - DRM_ERROR("tried to enable vblank on non-existent crtc %d\n", crtc); - return 0; + DRM_ERROR("tried to enable vblank on non-existent crtc %d\n", + crtc); + return -EINVAL; } - + DRM_DEBUG("before enable vblank CRTC_INT_CTNL: 0x%08x\n", status); - + /* Turn on VBLANK interrupt */ MACH64_WRITE(MACH64_CRTC_INT_CNTL, MACH64_READ(MACH64_CRTC_INT_CNTL) | MACH64_CRTC_VBLANK_INT_EN); @@ -98,12 +98,31 @@ int mach64_enable_vblank(struct drm_device * dev, int crtc) return 0; } - void mach64_disable_vblank(struct drm_device * dev, int crtc) { + if (crtc != 0) { + DRM_ERROR("tried to disable vblank on non-existent crtc %d\n", + crtc); + return; + } + + /* + * FIXME: implement proper interrupt disable by using the vblank + * counter register (if available). + */ +} + +static void mach64_disable_vblank_local(struct drm_device * dev, int crtc) +{ drm_mach64_private_t *dev_priv = dev->dev_private; u32 status = MACH64_READ(MACH64_CRTC_INT_CNTL); + if (crtc != 0) { + DRM_ERROR("tried to disable vblank on non-existent crtc %d\n", + crtc); + return; + } + DRM_DEBUG("before disable vblank CRTC_INT_CTNL: 0x%08x\n", status); /* Disable and clear VBLANK interrupt */ @@ -111,8 +130,6 @@ void mach64_disable_vblank(struct drm_device * dev, int crtc) | MACH64_CRTC_VBLANK_INT); } -/* drm_dma.h hooks -*/ void mach64_driver_irq_preinstall(struct drm_device * dev) { drm_mach64_private_t *dev_priv = dev->dev_private; @@ -121,7 +138,7 @@ void mach64_driver_irq_preinstall(struct drm_device * dev) DRM_DEBUG("before install CRTC_INT_CTNL: 0x%08x\n", status); - mach64_disable_vblank(dev,0); + mach64_disable_vblank_local(dev, 0); } int mach64_driver_irq_postinstall(struct drm_device * dev) @@ -135,7 +152,7 @@ void mach64_driver_irq_uninstall(struct drm_device * dev) if (!dev_priv) return; - mach64_disable_vblank(dev, 0); + mach64_disable_vblank_local(dev, 0); DRM_DEBUG("after uninstall CRTC_INT_CTNL: 0x%08x\n", MACH64_READ(MACH64_CRTC_INT_CNTL)); |