summaryrefslogtreecommitdiff
path: root/shared/mga_irq.c
diff options
context:
space:
mode:
Diffstat (limited to 'shared/mga_irq.c')
-rw-r--r--shared/mga_irq.c103
1 files changed, 0 insertions, 103 deletions
diff --git a/shared/mga_irq.c b/shared/mga_irq.c
deleted file mode 100644
index c3185b0b..00000000
--- a/shared/mga_irq.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/* mga_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 "mga.h"
-#include "drmP.h"
-#include "drm.h"
-#include "mga_drm.h"
-#include "mga_drv.h"
-
-irqreturn_t mga_driver_irq_handler( DRM_IRQ_ARGS )
-{
- drm_device_t *dev = (drm_device_t *) arg;
- drm_mga_private_t *dev_priv =
- (drm_mga_private_t *)dev->dev_private;
- int status;
-
- status = MGA_READ( MGA_STATUS );
-
- /* VBLANK interrupt */
- if ( status & MGA_VLINEPEN ) {
- MGA_WRITE( MGA_ICLEAR, MGA_VLINEICLR );
- atomic_inc(&dev->vbl_received);
- DRM_WAKEUP(&dev->vbl_queue);
- DRM(vbl_send_signals)( dev );
- return IRQ_HANDLED;
- }
- return IRQ_NONE;
-}
-
-int mga_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;
-}
-
-void mga_driver_irq_preinstall( drm_device_t *dev ) {
- drm_mga_private_t *dev_priv =
- (drm_mga_private_t *)dev->dev_private;
-
- /* Disable *all* interrupts */
- MGA_WRITE( MGA_IEN, 0 );
- /* Clear bits if they're already high */
- MGA_WRITE( MGA_ICLEAR, ~0 );
-}
-
-void mga_driver_irq_postinstall( drm_device_t *dev ) {
- drm_mga_private_t *dev_priv =
- (drm_mga_private_t *)dev->dev_private;
-
- /* Turn on VBL interrupt */
- MGA_WRITE( MGA_IEN, MGA_VLINEIEN );
-}
-
-void mga_driver_irq_uninstall( drm_device_t *dev ) {
- drm_mga_private_t *dev_priv =
- (drm_mga_private_t *)dev->dev_private;
- if (!dev_priv)
- return;
-
- /* Disable *all* interrupts */
- MGA_WRITE( MGA_IEN, 0 );
-}