1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
4 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
10 int viafb_ioctl_get_viafb_info(u_long arg)
12 struct viafb_ioctl_info viainfo;
14 memset(&viainfo, 0, sizeof(struct viafb_ioctl_info));
16 viainfo.viafb_id = VIAID;
17 viainfo.vendor_id = PCI_VIA_VENDOR_ID;
19 switch (viaparinfo->chip_info->gfx_chip_name) {
20 case UNICHROME_CLE266:
21 viainfo.device_id = UNICHROME_CLE266_DID;
25 viainfo.device_id = UNICHROME_K400_DID;
29 viainfo.device_id = UNICHROME_K800_DID;
33 viainfo.device_id = UNICHROME_PM800_DID;
37 viainfo.device_id = UNICHROME_CN700_DID;
41 viainfo.device_id = UNICHROME_CX700_DID;
44 case UNICHROME_K8M890:
45 viainfo.device_id = UNICHROME_K8M890_DID;
48 case UNICHROME_P4M890:
49 viainfo.device_id = UNICHROME_P4M890_DID;
52 case UNICHROME_P4M900:
53 viainfo.device_id = UNICHROME_P4M900_DID;
57 viainfo.version = VERSION_MAJOR;
58 viainfo.revision = VERSION_MINOR;
60 if (copy_to_user((void __user *)arg, &viainfo, sizeof(viainfo)))
66 /* Hot-Plug Priority: DVI > CRT*/
67 int viafb_ioctl_hotplug(int hres, int vres, int bpp)
69 int DVIsense, status = 0;
70 DEBUG_MSG(KERN_INFO "viafb_ioctl_hotplug!!\n");
72 if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name !=
73 NON_TMDS_TRANSMITTER) {
74 DVIsense = viafb_dvi_sense();
77 DEBUG_MSG(KERN_INFO "DVI Attached...\n");
78 if (viafb_DeviceStatus != DVI_Device) {
82 viafb_DeviceStatus = DVI_Device;
84 return viafb_DeviceStatus;
88 DEBUG_MSG(KERN_INFO "DVI De-attached...\n");
91 if ((viafb_DeviceStatus != CRT_Device) && (status == 0)) {
96 viafb_DeviceStatus = CRT_Device;
98 return viafb_DeviceStatus;