diff options
Diffstat (limited to 'nx-X11/extras/drm/shared/mach64_irq.c')
| -rw-r--r-- | nx-X11/extras/drm/shared/mach64_irq.c | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/nx-X11/extras/drm/shared/mach64_irq.c b/nx-X11/extras/drm/shared/mach64_irq.c deleted file mode 100644 index efa0641f7..000000000 --- a/nx-X11/extras/drm/shared/mach64_irq.c +++ /dev/null @@ -1,130 +0,0 @@ -/* mach64_irq.c -- IRQ handling for ATI Mach64 -*- linux-c -*- - * Created: Tue Feb 25, 2003 by Leif Delgass, based on radeon_irq.c/r128_irq.c - * - * Copyright (C) The Weather Channel, Inc. 2002. - * Copyright 2003 Leif Delgass - * 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 - * THE COPYRIGHT OWNER(S) 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> - * Leif Delgass <ldelgass@retinalburn.net> - */ - -#include "mach64.h" -#include "drmP.h" -#include "drm.h" -#include "mach64_drm.h" -#include "mach64_drv.h" - -irqreturn_t mach64_driver_irq_handler( DRM_IRQ_ARGS ) -{ - drm_device_t *dev = (drm_device_t *) arg; - drm_mach64_private_t *dev_priv = - (drm_mach64_private_t *)dev->dev_private; - int status; - - status = MACH64_READ( MACH64_CRTC_INT_CNTL ); - - /* VBLANK interrupt */ - if (status & MACH64_CRTC_VBLANK_INT) { - /* Mask off all interrupt ack bits before setting the ack bit, since - * there may be other handlers outside the DRM. - * - * NOTE: On mach64, you need to keep the enable bits set when doing - * the ack, despite what the docs say about not acking and enabling - * in a single write. - */ - MACH64_WRITE( MACH64_CRTC_INT_CNTL, (status & ~MACH64_CRTC_INT_ACKS) - | MACH64_CRTC_VBLANK_INT ); - - atomic_inc(&dev->vbl_received); - DRM_WAKEUP(&dev->vbl_queue); - DRM(vbl_send_signals)( dev ); - return IRQ_HANDLED; - } - return IRQ_NONE; -} - -int mach64_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... - */ - 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; -} - -/* drm_dma.h hooks -*/ -void mach64_driver_irq_preinstall( drm_device_t *dev ) { - drm_mach64_private_t *dev_priv = - (drm_mach64_private_t *)dev->dev_private; - - u32 status = MACH64_READ( MACH64_CRTC_INT_CNTL ); - - DRM_DEBUG("before install CRTC_INT_CTNL: 0x%08x\n", status ); - - /* Disable and clear VBLANK interrupt */ - MACH64_WRITE( MACH64_CRTC_INT_CNTL, (status & ~MACH64_CRTC_VBLANK_INT_EN) - | MACH64_CRTC_VBLANK_INT ); -} - -void mach64_driver_irq_postinstall( drm_device_t *dev ) { - drm_mach64_private_t *dev_priv = - (drm_mach64_private_t *)dev->dev_private; - - /* Turn on VBLANK interrupt */ - MACH64_WRITE( MACH64_CRTC_INT_CNTL, MACH64_READ( MACH64_CRTC_INT_CNTL ) - | MACH64_CRTC_VBLANK_INT_EN ); - - DRM_DEBUG("after install CRTC_INT_CTNL: 0x%08x\n", MACH64_READ( MACH64_CRTC_INT_CNTL )); - -} - -void mach64_driver_irq_uninstall( drm_device_t *dev ) { - drm_mach64_private_t *dev_priv = - (drm_mach64_private_t *)dev->dev_private; - if ( !dev_priv ) - return; - - /* Disable and clear VBLANK interrupt */ - MACH64_WRITE( MACH64_CRTC_INT_CNTL, - (MACH64_READ( MACH64_CRTC_INT_CNTL ) & ~MACH64_CRTC_VBLANK_INT_EN) - | MACH64_CRTC_VBLANK_INT ); - - DRM_DEBUG("after uninstall CRTC_INT_CTNL: 0x%08x\n", - MACH64_READ( MACH64_CRTC_INT_CNTL )); -} |