LXR linux/drivers/video/via/ioctl.c

   1/*
   2 * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
   3 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
   4
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU General Public
   7 * License as published by the Free Software Foundation;
   8 * either version 2, or (at your option) any later version.
   9
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
  12 * the implied warranty of MERCHANTABILITY or FITNESS FOR
  13 * A PARTICULAR PURPOSE.See the GNU General Public License
  14 * for more details.
  15
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc.,
  19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20 */
  21
  22#include "global.h"
  23
  24int viafb_ioctl_get_viafb_info(u_long arg)
  25{
  26        struct viafb_ioctl_info viainfo;
  27
  28        memset(&viainfo, 0, sizeof(struct viafb_ioctl_info));
  29
  30        viainfo.viafb_id = VIAID;
  31        viainfo.vendor_id = PCI_VIA_VENDOR_ID;
  32
  33        switch (viaparinfo->chip_info->gfx_chip_name) {
  34        case UNICHROME_CLE266:
  35                viainfo.device_id = UNICHROME_CLE266_DID;
  36                break;
  37
  38        case UNICHROME_K400:
  39                viainfo.device_id = UNICHROME_K400_DID;
  40                break;
  41
  42        case UNICHROME_K800:
  43                viainfo.device_id = UNICHROME_K800_DID;
  44                break;
  45
  46        case UNICHROME_PM800:
  47                viainfo.device_id = UNICHROME_PM800_DID;
  48                break;
  49
  50        case UNICHROME_CN700:
  51                viainfo.device_id = UNICHROME_CN700_DID;
  52                break;
  53
  54        case UNICHROME_CX700:
  55                viainfo.device_id = UNICHROME_CX700_DID;
  56                break;
  57
  58        case UNICHROME_K8M890:
  59                viainfo.device_id = UNICHROME_K8M890_DID;
  60                break;
  61
  62        case UNICHROME_P4M890:
  63                viainfo.device_id = UNICHROME_P4M890_DID;
  64                break;
  65
  66        case UNICHROME_P4M900:
  67                viainfo.device_id = UNICHROME_P4M900_DID;
  68                break;
  69        }
  70
  71        viainfo.version = VERSION_MAJOR;
  72        viainfo.revision = VERSION_MINOR;
  73
  74        if (copy_to_user((void __user *)arg, &viainfo, sizeof(viainfo)))
  75                return -EFAULT;
  76
  77        return 0;
  78}
  79
  80/* Hot-Plug Priority: DVI > CRT*/
  81int viafb_ioctl_hotplug(int hres, int vres, int bpp)
  82{
  83        int DVIsense, status = 0;
  84        DEBUG_MSG(KERN_INFO "viafb_ioctl_hotplug!!\n");
  85
  86        if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name !=
  87                NON_TMDS_TRANSMITTER) {
  88                DVIsense = viafb_dvi_sense();
  89
  90                if (DVIsense) {
  91                        DEBUG_MSG(KERN_INFO "DVI Attached...\n");
  92                        if (viafb_DeviceStatus != DVI_Device) {
  93                                viafb_DVI_ON = 1;
  94                                viafb_CRT_ON = 0;
  95                                viafb_LCD_ON = 0;
  96                                viafb_DeviceStatus = DVI_Device;
  97                                viafb_set_iga_path();
  98                                return viafb_DeviceStatus;
  99                        }
 100                        status = 1;
 101                } else
 102                        DEBUG_MSG(KERN_INFO "DVI De-attached...\n");
 103        }
 104
 105        if ((viafb_DeviceStatus != CRT_Device) && (status == 0)) {
 106                viafb_CRT_ON = 1;
 107                viafb_DVI_ON = 0;
 108                viafb_LCD_ON = 0;
 109
 110                viafb_DeviceStatus = CRT_Device;
 111                viafb_set_iga_path();
 112                return viafb_DeviceStatus;
 113        }
 114
 115        return 0;
 116}
 117