diff options
Diffstat (limited to 'drivers/char/drm/r128_irq.c')
| -rw-r--r-- | drivers/char/drm/r128_irq.c | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/drivers/char/drm/r128_irq.c b/drivers/char/drm/r128_irq.c deleted file mode 100644 index 5b95bd898f9..00000000000 --- a/drivers/char/drm/r128_irq.c +++ /dev/null @@ -1,116 +0,0 @@ -/* 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. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Authors: - * Keith Whitwell <keith@tungstengraphics.com> - * Eric Anholt <anholt@FreeBSD.org> - */ - -#include "drmP.h" -#include "drm.h" -#include "r128_drm.h" -#include "r128_drv.h" - -u32 r128_get_vblank_counter(struct drm_device *dev, int crtc) -{ - const drm_r128_private_t *dev_priv = dev->dev_private; - - if (crtc != 0) - return 0; - - return atomic_read(&dev_priv->vbl_received); -} - -irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) -{ - struct drm_device *dev = (struct drm_device *) arg; - drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; - 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); - atomic_inc(&dev_priv->vbl_received); - drm_handle_vblank(dev, 0); - return IRQ_HANDLED; - } - return IRQ_NONE; -} - -int r128_enable_vblank(struct drm_device *dev, int crtc) -{ - drm_r128_private_t *dev_priv = dev->dev_private; - - if (crtc != 0) { - DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc); - return -EINVAL; - } - - R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN); - return 0; -} - -void r128_disable_vblank(struct drm_device *dev, int crtc) -{ - if (crtc != 0) - DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc); - - /* - * FIXME: implement proper interrupt disable by using the vblank - * counter register (if available) - * - * R128_WRITE(R128_GEN_INT_CNTL, - * R128_READ(R128_GEN_INT_CNTL) & ~R128_CRTC_VBLANK_INT_EN); - */ -} - -void r128_driver_irq_preinstall(struct drm_device * dev) -{ - drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; - - /* Disable *all* interrupts */ - 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); -} - -int r128_driver_irq_postinstall(struct drm_device * dev) -{ - return drm_vblank_init(dev, 1); -} - -void r128_driver_irq_uninstall(struct drm_device * 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); -} |