From 6677e2a10b820a5ccfd375cc627b8e41453a71da Mon Sep 17 00:00:00 2001 From: Adam Jackson Date: Wed, 19 Jul 2006 16:19:25 -0400 Subject: Delete the pre-core DRM code with extreme prejudice. --- shared/via_irq.c | 340 ------------------------------------------------------- 1 file changed, 340 deletions(-) delete mode 100644 shared/via_irq.c (limited to 'shared/via_irq.c') diff --git a/shared/via_irq.c b/shared/via_irq.c deleted file mode 100644 index 0812e926..00000000 --- a/shared/via_irq.c +++ /dev/null @@ -1,340 +0,0 @@ -/* via_irq.c - * - * Copyright 2004 BEAM Ltd. - * Copyright 2002 Tungsten Graphics, Inc. - * Copyright 2005 Thomas Hellstrom. - * All Rights Reserved. - * - * 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 - * BEAM LTD, TUNGSTEN GRAPHICS 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: - * Terry Barnaby - * Keith Whitwell - * Thomas Hellstrom - * - * This code provides standard DRM access to the Via Unichrome / Pro Vertical blank - * interrupt, as well as an infrastructure to handle other interrupts of the chip. - * The refresh rate is also calculated for video playback sync purposes. - */ - -#include "via.h" -#include "drmP.h" -#include "drm.h" -#include "via_drm.h" -#include "via_drv.h" - -#define VIA_REG_INTERRUPT 0x200 - -/* VIA_REG_INTERRUPT */ -#define VIA_IRQ_GLOBAL (1 << 31) -#define VIA_IRQ_VBLANK_ENABLE (1 << 19) -#define VIA_IRQ_VBLANK_PENDING (1 << 3) -#define VIA_IRQ_HQV0_ENABLE (1 << 11) -#define VIA_IRQ_HQV1_ENABLE (1 << 25) -#define VIA_IRQ_HQV0_PENDING (1 << 9) -#define VIA_IRQ_HQV1_PENDING (1 << 10) - -/* - * Device-specific IRQs go here. This type might need to be extended with - * the register if there are multiple IRQ control registers. - * Currently we activate the HQV interrupts of Unichrome Pro group A. - */ - -static maskarray_t via_pro_group_a_irqs[] = { - {VIA_IRQ_HQV0_ENABLE, VIA_IRQ_HQV0_PENDING, 0x000003D0, 0x00008010, 0x00000000 }, - {VIA_IRQ_HQV1_ENABLE, VIA_IRQ_HQV1_PENDING, 0x000013D0, 0x00008010, 0x00000000 }}; -static int via_num_pro_group_a = sizeof(via_pro_group_a_irqs)/sizeof(maskarray_t); - -static maskarray_t via_unichrome_irqs[] = {}; -static int via_num_unichrome = sizeof(via_unichrome_irqs)/sizeof(maskarray_t); - - -static unsigned time_diff(struct timeval *now,struct timeval *then) -{ - return (now->tv_usec >= then->tv_usec) ? - now->tv_usec - then->tv_usec : - 1000000 - (then->tv_usec - now->tv_usec); -} - -irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) -{ - drm_device_t *dev = (drm_device_t *) arg; - drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; - u32 status; - int handled = 0; - struct timeval cur_vblank; - drm_via_irq_t *cur_irq = dev_priv->via_irqs; - int i; - - status = VIA_READ(VIA_REG_INTERRUPT); - if (status & VIA_IRQ_VBLANK_PENDING) { - atomic_inc(&dev->vbl_received); - if (!(atomic_read(&dev->vbl_received) & 0x0F)) { - do_gettimeofday(&cur_vblank); - if (dev_priv->last_vblank_valid) { - dev_priv->usec_per_vblank = - time_diff( &cur_vblank,&dev_priv->last_vblank) >> 4; - } - dev_priv->last_vblank = cur_vblank; - dev_priv->last_vblank_valid = 1; - } - if (!(atomic_read(&dev->vbl_received) & 0xFF)) { - DRM_DEBUG("US per vblank is: %u\n", - dev_priv->usec_per_vblank); - } - DRM_WAKEUP(&dev->vbl_queue); - DRM(vbl_send_signals)( dev ); - handled = 1; - } - - - for (i=0; inum_irqs; ++i) { - if (status & cur_irq->pending_mask) { - atomic_inc( &cur_irq->irq_received ); - DRM_WAKEUP( &cur_irq->irq_queue ); - handled = 1; - } - cur_irq++; - } - - /* Acknowlege interrupts */ - VIA_WRITE(VIA_REG_INTERRUPT, status); - - - if (handled) - return IRQ_HANDLED; - else - return IRQ_NONE; -} - -static __inline__ void viadrv_acknowledge_irqs(drm_via_private_t * dev_priv) -{ - u32 status; - - if (dev_priv) { - /* Acknowlege interrupts */ - status = VIA_READ(VIA_REG_INTERRUPT); - VIA_WRITE(VIA_REG_INTERRUPT, status | - dev_priv->irq_pending_mask); - } -} - -int via_driver_vblank_wait(drm_device_t * dev, unsigned int *sequence) -{ - drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; - unsigned int cur_vblank; - int ret = 0; - - DRM_DEBUG("viadrv_vblank_wait\n"); - if (!dev_priv) { - DRM_ERROR("%s called with no initialization\n", __FUNCTION__); - return -EINVAL; - } - - viadrv_acknowledge_irqs(dev_priv); - - /* 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; -} - -static int -via_driver_irq_wait(drm_device_t * dev, unsigned int irq, int force_sequence, - unsigned int *sequence) -{ - drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; - unsigned int cur_irq_sequence; - drm_via_irq_t *cur_irq = dev_priv->via_irqs; - int ret = 0; - maskarray_t *masks = dev_priv->irq_masks; - - DRM_DEBUG("%s\n", __FUNCTION__); - - if (!dev_priv) { - DRM_ERROR("%s called with no initialization\n", __FUNCTION__); - return DRM_ERR(EINVAL); - } - - if (irq >= dev_priv->num_irqs ) { - DRM_ERROR("%s Trying to wait on unknown irq %d\n", __FUNCTION__, irq); - return DRM_ERR(EINVAL); - } - - cur_irq += irq; - - if (masks[irq][2] && !force_sequence) { - DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ, - ((VIA_READ(masks[irq][2]) & masks[irq][3]) == masks[irq][4])); - cur_irq_sequence = atomic_read(&cur_irq->irq_received); - } else { - DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ, - (((cur_irq_sequence = atomic_read(&cur_irq->irq_received)) - - *sequence) <= (1 << 23))); - } - *sequence = cur_irq_sequence; - return ret; -} - - -/* - * drm_dma.h hooks - */ - -void via_driver_irq_preinstall(drm_device_t * dev) -{ - drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; - u32 status; - drm_via_irq_t *cur_irq = dev_priv->via_irqs; - int i; - - DRM_DEBUG("driver_irq_preinstall: dev_priv: %p\n", dev_priv); - if (dev_priv) { - - dev_priv->irq_enable_mask = VIA_IRQ_VBLANK_ENABLE; - dev_priv->irq_pending_mask = VIA_IRQ_VBLANK_PENDING; - - dev_priv->irq_masks = (dev_priv->pro_group_a) ? - via_pro_group_a_irqs : via_unichrome_irqs; - dev_priv->num_irqs = (dev_priv->pro_group_a) ? - via_num_pro_group_a : via_num_unichrome; - - for(i=0; i < dev_priv->num_irqs; ++i) { - atomic_set(&cur_irq->irq_received, 0); - cur_irq->enable_mask = dev_priv->irq_masks[i][0]; - cur_irq->pending_mask = dev_priv->irq_masks[i][1]; - DRM_INIT_WAITQUEUE( &cur_irq->irq_queue ); - dev_priv->irq_enable_mask |= cur_irq->enable_mask; - dev_priv->irq_pending_mask |= cur_irq->pending_mask; - cur_irq++; - - DRM_DEBUG("Initializing IRQ %d\n", i); - } - - dev_priv->last_vblank_valid = 0; - - // Clear VSync interrupt regs - status = VIA_READ(VIA_REG_INTERRUPT); - VIA_WRITE(VIA_REG_INTERRUPT, status & - ~(dev_priv->irq_enable_mask)); - - /* Clear bits if they're already high */ - viadrv_acknowledge_irqs(dev_priv); - } -} - -void via_driver_irq_postinstall(drm_device_t * dev) -{ - drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; - u32 status; - - DRM_DEBUG("via_driver_irq_postinstall\n"); - if (dev_priv) { - status = VIA_READ(VIA_REG_INTERRUPT); - VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_GLOBAL - | dev_priv->irq_enable_mask); - - /* Some magic, oh for some data sheets ! */ - - VIA_WRITE8(0x83d4, 0x11); - VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30); - - } -} - -void via_driver_irq_uninstall(drm_device_t * dev) -{ - drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; - u32 status; - - DRM_DEBUG("driver_irq_uninstall)\n"); - if (dev_priv) { - - /* Some more magic, oh for some data sheets ! */ - - VIA_WRITE8(0x83d4, 0x11); - VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) & ~0x30); - - status = VIA_READ(VIA_REG_INTERRUPT); - VIA_WRITE(VIA_REG_INTERRUPT, status & - ~(VIA_IRQ_VBLANK_ENABLE | dev_priv->irq_enable_mask)); - } -} - -int via_wait_irq(DRM_IOCTL_ARGS) -{ - DRM_DEVICE; - - drm_via_irqwait_t __user *argp = (void __user *)data; - drm_via_irqwait_t irqwait; - struct timeval now; - int ret = 0; - drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; - drm_via_irq_t *cur_irq = dev_priv->via_irqs; - int force_sequence; - - if (!dev->irq) - return DRM_ERR(EINVAL); - - DRM_COPY_FROM_USER_IOCTL(irqwait, argp, sizeof(irqwait)); - if (irqwait.request.irq >= dev_priv->num_irqs) { - DRM_ERROR("%s Trying to wait on unknown irq %d\n", __FUNCTION__, - irqwait.request.irq); - return DRM_ERR(EINVAL); - } - - cur_irq += irqwait.request.irq; - - switch (irqwait.request.type & ~VIA_IRQ_FLAGS_MASK) { - case VIA_IRQ_RELATIVE: - irqwait.request.sequence += atomic_read(&cur_irq->irq_received); - irqwait.request.type &= ~_DRM_VBLANK_RELATIVE; - case VIA_IRQ_ABSOLUTE: - break; - default: - return DRM_ERR(EINVAL); - } - - if (irqwait.request.type & VIA_IRQ_SIGNAL) { - DRM_ERROR("%s Signals on Via IRQs not implemented yet.\n", - __FUNCTION__); - return DRM_ERR(EINVAL); - } - - force_sequence = (irqwait.request.type & VIA_IRQ_FORCE_SEQUENCE); - - ret = via_driver_irq_wait(dev, irqwait.request.irq, force_sequence, - &irqwait.request.sequence); - do_gettimeofday(&now); - irqwait.reply.tval_sec = now.tv_sec; - irqwait.reply.tval_usec = now.tv_usec; - - DRM_COPY_TO_USER_IOCTL(argp, irqwait, sizeof(irqwait)); - - return ret; -} -- cgit v1.2.3