1/* 2 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved. 3 * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sub license, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the 13 * next paragraph) shall be included in all copies or substantial portions 14 * of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 19 * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 */ 24#include "drmP.h" 25#include "via_drm.h" 26#include "via_drv.h" 27 28static int via_do_init_map(drm_device_t * dev, drm_via_init_t * init) 29{ 30 drm_via_private_t *dev_priv = dev->dev_private; 31 32 DRM_DEBUG("%s\n", __FUNCTION__); 33 34 DRM_GETSAREA(); 35 if (!dev_priv->sarea) { 36 DRM_ERROR("could not find sarea!\n"); 37 dev->dev_private = (void *)dev_priv; 38 via_do_cleanup_map(dev); 39 return -EINVAL; 40 } 41 42 dev_priv->fb = drm_core_findmap(dev, init->fb_offset); 43 if (!dev_priv->fb) { 44 DRM_ERROR("could not find framebuffer!\n"); 45 dev->dev_private = (void *)dev_priv; 46 via_do_cleanup_map(dev); 47 return -EINVAL; 48 } 49 dev_priv->mmio = drm_core_findmap(dev, init->mmio_offset); 50 if (!dev_priv->mmio) { 51 DRM_ERROR("could not find mmio region!\n"); 52 dev->dev_private = (void *)dev_priv; 53 via_do_cleanup_map(dev); 54 return -EINVAL; 55 } 56 57 dev_priv->sarea_priv = 58 (drm_via_sarea_t *) ((u8 *) dev_priv->sarea->handle + 59 init->sarea_priv_offset); 60 61 dev_priv->agpAddr = init->agpAddr; 62 63 via_init_futex(dev_priv); 64 65 via_init_dmablit(dev); 66 67 dev->dev_private = (void *)dev_priv; 68 return 0; 69} 70 71int via_do_cleanup_map(drm_device_t * dev) 72{ 73 via_dma_cleanup(dev); 74 75 return 0; 76} 77 78int via_map_init(DRM_IOCTL_ARGS) 79{ 80 DRM_DEVICE; 81 drm_via_init_t init; 82 83 DRM_DEBUG("%s\n", __FUNCTION__); 84 85 DRM_COPY_FROM_USER_IOCTL(init, (drm_via_init_t __user *) data, 86 sizeof(init)); 87 88 switch (init.func) { 89 case VIA_INIT_MAP: 90 return via_do_init_map(dev, &init); 91 case VIA_CLEANUP_MAP: 92 return via_do_cleanup_map(dev); 93 } 94 95 return -EINVAL; 96} 97 98int via_driver_load(drm_device_t *dev, unsigned long chipset) 99{ 100 drm_via_private_t *dev_priv; 101 int ret = 0; 102 103 dev_priv = drm_calloc(1, sizeof(drm_via_private_t), DRM_MEM_DRIVER); 104 if (dev_priv == NULL) 105 return DRM_ERR(ENOMEM); 106 107 dev->dev_private = (void *)dev_priv; 108 109 dev_priv->chipset = chipset; 110 111 ret = drm_sman_init(&dev_priv->sman, 2, 12, 8); 112 if (ret) { 113 drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER); 114 } 115 return ret; 116} 117 118int via_driver_unload(drm_device_t *dev) 119{ 120 drm_via_private_t *dev_priv = dev->dev_private; 121 122 drm_sman_takedown(&dev_priv->sman); 123 124 drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER); 125 126 return 0; 127} 128