diff options
Diffstat (limited to 'drivers/char/drm/r128_irq.c')
| -rw-r--r-- | drivers/char/drm/r128_irq.c | 53 |
1 files changed, 26 insertions, 27 deletions
diff --git a/drivers/char/drm/r128_irq.c b/drivers/char/drm/r128_irq.c index 643a30785fe5..27eb0e31bd3b 100644 --- a/drivers/char/drm/r128_irq.c +++ b/drivers/char/drm/r128_irq.c @@ -1,7 +1,7 @@ /* r128_irq.c -- IRQ handling for radeon -*- linux-c -*- * * Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. - * + * * The Weather Channel (TM) funded Tungsten Graphics to develop the * initial release of the Radeon 8500 driver under the XFree86 license. * This notice must be preserved. @@ -35,68 +35,67 @@ #include "r128_drm.h" #include "r128_drv.h" -irqreturn_t r128_driver_irq_handler( DRM_IRQ_ARGS ) +irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) { drm_device_t *dev = (drm_device_t *) arg; - drm_r128_private_t *dev_priv = - (drm_r128_private_t *)dev->dev_private; + drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; int status; - status = R128_READ( R128_GEN_INT_STATUS ); - + status = R128_READ(R128_GEN_INT_STATUS); + /* VBLANK interrupt */ - if ( status & R128_CRTC_VBLANK_INT ) { - R128_WRITE( R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK ); + if (status & R128_CRTC_VBLANK_INT) { + R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); atomic_inc(&dev->vbl_received); DRM_WAKEUP(&dev->vbl_queue); - drm_vbl_send_signals( dev ); + drm_vbl_send_signals(dev); return IRQ_HANDLED; } return IRQ_NONE; } -int r128_driver_vblank_wait(drm_device_t *dev, unsigned int *sequence) +int r128_driver_vblank_wait(drm_device_t * dev, unsigned int *sequence) { unsigned int cur_vblank; int ret = 0; /* Assume that the user has missed the current sequence number * by about a day rather than she wants to wait for years - * using vertical blanks... + * using vertical blanks... */ - DRM_WAIT_ON( ret, dev->vbl_queue, 3*DRM_HZ, - ( ( ( cur_vblank = atomic_read(&dev->vbl_received ) ) - - *sequence ) <= (1<<23) ) ); + DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ, + (((cur_vblank = atomic_read(&dev->vbl_received)) + - *sequence) <= (1 << 23))); *sequence = cur_vblank; return ret; } -void r128_driver_irq_preinstall( drm_device_t *dev ) { - drm_r128_private_t *dev_priv = - (drm_r128_private_t *)dev->dev_private; +void r128_driver_irq_preinstall(drm_device_t * dev) +{ + drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; /* Disable *all* interrupts */ - R128_WRITE( R128_GEN_INT_CNTL, 0 ); + R128_WRITE(R128_GEN_INT_CNTL, 0); /* Clear vblank bit if it's already high */ - R128_WRITE( R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK ); + R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); } -void r128_driver_irq_postinstall( drm_device_t *dev ) { - drm_r128_private_t *dev_priv = - (drm_r128_private_t *)dev->dev_private; +void r128_driver_irq_postinstall(drm_device_t * dev) +{ + drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; /* Turn on VBL interrupt */ - R128_WRITE( R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN ); + R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN); } -void r128_driver_irq_uninstall( drm_device_t *dev ) { - drm_r128_private_t *dev_priv = - (drm_r128_private_t *)dev->dev_private; +void r128_driver_irq_uninstall(drm_device_t * dev) +{ + drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; if (!dev_priv) return; /* Disable *all* interrupts */ - R128_WRITE( R128_GEN_INT_CNTL, 0 ); + R128_WRITE(R128_GEN_INT_CNTL, 0); } |