root/drivers/video/fbdev/via/ioctl.c

DEFINITIONS

1. viafb_ioctl_get_viafb_info
2. viafb_ioctl_hotplug

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
   4  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
   5 
   6  */
   7 
   8 #include "global.h"
   9 
  10 int viafb_ioctl_get_viafb_info(u_long arg)
  11 {
  12         struct viafb_ioctl_info viainfo;
  13 
  14         memset(&viainfo, 0, sizeof(struct viafb_ioctl_info));
  15 
  16         viainfo.viafb_id = VIAID;
  17         viainfo.vendor_id = PCI_VIA_VENDOR_ID;
  18 
  19         switch (viaparinfo->chip_info->gfx_chip_name) {
  20         case UNICHROME_CLE266:
  21                 viainfo.device_id = UNICHROME_CLE266_DID;
  22                 break;
  23 
  24         case UNICHROME_K400:
  25                 viainfo.device_id = UNICHROME_K400_DID;
  26                 break;
  27 
  28         case UNICHROME_K800:
  29                 viainfo.device_id = UNICHROME_K800_DID;
  30                 break;
  31 
  32         case UNICHROME_PM800:
  33                 viainfo.device_id = UNICHROME_PM800_DID;
  34                 break;
  35 
  36         case UNICHROME_CN700:
  37                 viainfo.device_id = UNICHROME_CN700_DID;
  38                 break;
  39 
  40         case UNICHROME_CX700:
  41                 viainfo.device_id = UNICHROME_CX700_DID;
  42                 break;
  43 
  44         case UNICHROME_K8M890:
  45                 viainfo.device_id = UNICHROME_K8M890_DID;
  46                 break;
  47 
  48         case UNICHROME_P4M890:
  49                 viainfo.device_id = UNICHROME_P4M890_DID;
  50                 break;
  51 
  52         case UNICHROME_P4M900:
  53                 viainfo.device_id = UNICHROME_P4M900_DID;
  54                 break;
  55         }
  56 
  57         viainfo.version = VERSION_MAJOR;
  58         viainfo.revision = VERSION_MINOR;
  59 
  60         if (copy_to_user((void __user *)arg, &viainfo, sizeof(viainfo)))
  61                 return -EFAULT;
  62 
  63         return 0;
  64 }
  65 
  66 /* Hot-Plug Priority: DVI > CRT*/
  67 int viafb_ioctl_hotplug(int hres, int vres, int bpp)
  68 {
  69         int DVIsense, status = 0;
  70         DEBUG_MSG(KERN_INFO "viafb_ioctl_hotplug!!\n");
  71 
  72         if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name !=
  73                 NON_TMDS_TRANSMITTER) {
  74                 DVIsense = viafb_dvi_sense();
  75 
  76                 if (DVIsense) {
  77                         DEBUG_MSG(KERN_INFO "DVI Attached...\n");
  78                         if (viafb_DeviceStatus != DVI_Device) {
  79                                 viafb_DVI_ON = 1;
  80                                 viafb_CRT_ON = 0;
  81                                 viafb_LCD_ON = 0;
  82                                 viafb_DeviceStatus = DVI_Device;
  83                                 viafb_set_iga_path();
  84                                 return viafb_DeviceStatus;
  85                         }
  86                         status = 1;
  87                 } else
  88                         DEBUG_MSG(KERN_INFO "DVI De-attached...\n");
  89         }
  90 
  91         if ((viafb_DeviceStatus != CRT_Device) && (status == 0)) {
  92                 viafb_CRT_ON = 1;
  93                 viafb_DVI_ON = 0;
  94                 viafb_LCD_ON = 0;
  95 
  96                 viafb_DeviceStatus = CRT_Device;
  97                 viafb_set_iga_path();
  98                 return viafb_DeviceStatus;
  99         }
 100 
 101         return 0;
 102 }