drivers/video/fbdev/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         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*/
  81 int 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 }