cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

ioctl.c (2176B)

      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}