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
  24 int viafb_ioctl_get_viafb_info(u_long arg)
  25 {
  26         struct viafb_ioctl_info viainfo;
  27
  28         viainfo.viafb_id = VIAID;
  29         viainfo.vendor_id = PCI_VIA_VENDOR_ID;
  30
  31         switch (viaparinfo->chip_info->gfx_chip_name) {
  32         case UNICHROME_CLE266:
  33                 viainfo.device_id = UNICHROME_CLE266_DID;
  34                 break;
  35
  36         case UNICHROME_K400:
  37                 viainfo.device_id = UNICHROME_K400_DID;
  38                 break;
  39
  40         case UNICHROME_K800:
  41                 viainfo.device_id = UNICHROME_K800_DID;
  42                 break;
  43
  44         case UNICHROME_PM800:
  45                 viainfo.device_id = UNICHROME_PM800_DID;
  46                 break;
  47
  48         case UNICHROME_CN700:
  49                 viainfo.device_id = UNICHROME_CN700_DID;
  50                 break;
  51
  52         case UNICHROME_CX700:
  53                 viainfo.device_id = UNICHROME_CX700_DID;
  54                 break;
  55
  56         case UNICHROME_K8M890:
  57                 viainfo.device_id = UNICHROME_K8M890_DID;
  58                 break;
  59
  60         case UNICHROME_P4M890:
  61                 viainfo.device_id = UNICHROME_P4M890_DID;
  62                 break;
  63
  64         case UNICHROME_P4M900:
  65                 viainfo.device_id = UNICHROME_P4M900_DID;
  66                 break;
  67         }
  68
  69         viainfo.version = VERSION_MAJOR;
  70         viainfo.revision = VERSION_MINOR;
  71
  72         if (copy_to_user((void __user *)arg, &viainfo, sizeof(viainfo)))
  73                 return -EFAULT;
  74
  75         return 0;
  76 }
  77
  78 /* Hot-Plug Priority: DVI > CRT*/
  79 int viafb_ioctl_hotplug(int hres, int vres, int bpp)
  80 {
  81         int DVIsense, status = 0;
  82         DEBUG_MSG(KERN_INFO "viafb_ioctl_hotplug!!\n");
  83
  84         if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name !=
  85                 NON_TMDS_TRANSMITTER) {
  86                 DVIsense = viafb_dvi_sense();
  87
  88                 if (DVIsense) {
  89                         DEBUG_MSG(KERN_INFO "DVI Attached...\n");
  90                         if (viafb_DeviceStatus != DVI_Device) {
  91                                 viafb_DVI_ON = 1;
  92                                 viafb_CRT_ON = 0;
  93                                 viafb_LCD_ON = 0;
  94                                 viafb_DeviceStatus = DVI_Device;
  95                                 return viafb_DeviceStatus;
  96                         }
  97                         status = 1;
  98                 } else
  99                         DEBUG_MSG(KERN_INFO "DVI De-attached...\n");
 100         }
 101
 102         if ((viafb_DeviceStatus != CRT_Device) && (status == 0)) {
 103                 viafb_CRT_ON = 1;
 104                 viafb_DVI_ON = 0;
 105                 viafb_LCD_ON = 0;
 106
 107                 viafb_DeviceStatus = CRT_Device;
 108                 return viafb_DeviceStatus;
 109         }
 110
 111         return 0;
 112 }