xref: /openbmc/linux/drivers/video/fbdev/via/ioctl.c (revision 9b9c2cd4)
1 /*
2  * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
3  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
4 
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public
7  * License as published by the Free Software Foundation;
8  * either version 2, or (at your option) any later version.
9 
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
12  * the implied warranty of MERCHANTABILITY or FITNESS FOR
13  * A PARTICULAR PURPOSE.See the GNU General Public License
14  * for more details.
15 
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc.,
19  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20  */
21 
22 #include "global.h"
23 
24 int viafb_ioctl_get_viafb_info(u_long arg)
25 {
26 	struct viafb_ioctl_info viainfo;
27 
28 	memset(&viainfo, 0, sizeof(struct viafb_ioctl_info));
29 
30 	viainfo.viafb_id = VIAID;
31 	viainfo.vendor_id = PCI_VIA_VENDOR_ID;
32 
33 	switch (viaparinfo->chip_info->gfx_chip_name) {
34 	case UNICHROME_CLE266:
35 		viainfo.device_id = UNICHROME_CLE266_DID;
36 		break;
37 
38 	case UNICHROME_K400:
39 		viainfo.device_id = UNICHROME_K400_DID;
40 		break;
41 
42 	case UNICHROME_K800:
43 		viainfo.device_id = UNICHROME_K800_DID;
44 		break;
45 
46 	case UNICHROME_PM800:
47 		viainfo.device_id = UNICHROME_PM800_DID;
48 		break;
49 
50 	case UNICHROME_CN700:
51 		viainfo.device_id = UNICHROME_CN700_DID;
52 		break;
53 
54 	case UNICHROME_CX700:
55 		viainfo.device_id = UNICHROME_CX700_DID;
56 		break;
57 
58 	case UNICHROME_K8M890:
59 		viainfo.device_id = UNICHROME_K8M890_DID;
60 		break;
61 
62 	case UNICHROME_P4M890:
63 		viainfo.device_id = UNICHROME_P4M890_DID;
64 		break;
65 
66 	case UNICHROME_P4M900:
67 		viainfo.device_id = UNICHROME_P4M900_DID;
68 		break;
69 	}
70 
71 	viainfo.version = VERSION_MAJOR;
72 	viainfo.revision = VERSION_MINOR;
73 
74 	if (copy_to_user((void __user *)arg, &viainfo, sizeof(viainfo)))
75 		return -EFAULT;
76 
77 	return 0;
78 }
79 
80 /* Hot-Plug Priority: DVI > CRT*/
81 int viafb_ioctl_hotplug(int hres, int vres, int bpp)
82 {
83 	int DVIsense, status = 0;
84 	DEBUG_MSG(KERN_INFO "viafb_ioctl_hotplug!!\n");
85 
86 	if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name !=
87 		NON_TMDS_TRANSMITTER) {
88 		DVIsense = viafb_dvi_sense();
89 
90 		if (DVIsense) {
91 			DEBUG_MSG(KERN_INFO "DVI Attached...\n");
92 			if (viafb_DeviceStatus != DVI_Device) {
93 				viafb_DVI_ON = 1;
94 				viafb_CRT_ON = 0;
95 				viafb_LCD_ON = 0;
96 				viafb_DeviceStatus = DVI_Device;
97 				viafb_set_iga_path();
98 				return viafb_DeviceStatus;
99 			}
100 			status = 1;
101 		} else
102 			DEBUG_MSG(KERN_INFO "DVI De-attached...\n");
103 	}
104 
105 	if ((viafb_DeviceStatus != CRT_Device) && (status == 0)) {
106 		viafb_CRT_ON = 1;
107 		viafb_DVI_ON = 0;
108 		viafb_LCD_ON = 0;
109 
110 		viafb_DeviceStatus = CRT_Device;
111 		viafb_set_iga_path();
112 		return viafb_DeviceStatus;
113 	}
114 
115 	return 0;
116 }
117