release/src-rt-6.x/linux/linux-2.6/drivers/char/drm/sis_drv.c

   1 /* sis.c -- sis driver -*- linux-c -*-
   2  *
   3  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
   4  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the next
  15  * paragraph) shall be included in all copies or substantial portions of the
  16  * Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  24  * DEALINGS IN THE SOFTWARE.
  25  *
  26  */
  27
  28 #include "drmP.h"
  29 #include "sis_drm.h"
  30 #include "sis_drv.h"
  31
  32 #include "drm_pciids.h"
  33
  34 static struct pci_device_id pciidlist[] = {
  35         sisdrv_PCI_IDS
  36 };
  37
  38 static int sis_driver_load(drm_device_t *dev, unsigned long chipset)
  39 {
  40         drm_sis_private_t *dev_priv;
  41         int ret;
  42
  43         dev_priv = drm_calloc(1, sizeof(drm_sis_private_t), DRM_MEM_DRIVER);
  44         if (dev_priv == NULL)
  45                 return DRM_ERR(ENOMEM);
  46
  47         dev->dev_private = (void *)dev_priv;
  48         dev_priv->chipset = chipset;
  49         ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
  50         if (ret) {
  51                 drm_free(dev_priv, sizeof(dev_priv), DRM_MEM_DRIVER);
  52         }
  53
  54         return ret;
  55 }
  56
  57 static int sis_driver_unload(drm_device_t *dev)
  58 {
  59         drm_sis_private_t *dev_priv = dev->dev_private;
  60
  61         drm_sman_takedown(&dev_priv->sman);
  62         drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
  63
  64         return 0;
  65 }
  66
  67 static struct drm_driver driver = {
  68         .driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR,
  69         .load = sis_driver_load,
  70         .unload = sis_driver_unload,
  71         .context_dtor = NULL,
  72         .dma_quiescent = sis_idle,
  73         .reclaim_buffers = NULL,
  74         .reclaim_buffers_idlelocked = sis_reclaim_buffers_locked,
  75         .lastclose = sis_lastclose,
  76         .get_map_ofs = drm_core_get_map_ofs,
  77         .get_reg_ofs = drm_core_get_reg_ofs,
  78         .ioctls = sis_ioctls,
  79         .fops = {
  80                  .owner = THIS_MODULE,
  81                  .open = drm_open,
  82                  .release = drm_release,
  83                  .ioctl = drm_ioctl,
  84                  .mmap = drm_mmap,
  85                  .poll = drm_poll,
  86                  .fasync = drm_fasync,
  87         },
  88         .pci_driver = {
  89                  .name = DRIVER_NAME,
  90                  .id_table = pciidlist,
  91         },
  92
  93         .name = DRIVER_NAME,
  94         .desc = DRIVER_DESC,
  95         .date = DRIVER_DATE,
  96         .major = DRIVER_MAJOR,
  97         .minor = DRIVER_MINOR,
  98         .patchlevel = DRIVER_PATCHLEVEL,
  99 };
 100
 101 static int __init sis_init(void)
 102 {
 103         driver.num_ioctls = sis_max_ioctl;
 104         return drm_init(&driver);
 105 }
 106
 107 static void __exit sis_exit(void)
 108 {
 109         drm_exit(&driver);
 110 }
 111
 112 module_init(sis_init);
 113 module_exit(sis_exit);
 114
 115 MODULE_AUTHOR(DRIVER_AUTHOR);
 116 MODULE_DESCRIPTION(DRIVER_DESC);
 117 MODULE_LICENSE("GPL and additional rights");