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

   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
  10int 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*/
  67int 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}
 103