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}