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authorJoseph Chan <JosephChan@via.com.tw>2008-10-16 01:03:24 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 14:21:41 -0400
commitc91b557ad0a4d4803874f8b908aa9732152b0f0b (patch)
tree7ad914c2deed6f71e2600bdfdb7cbc84ef22aa41 /drivers/video/via
parentd61e0bf38e3e4adb2c775d64e447f6f9bef67075 (diff)
viafb: iface.c, iface.h, ioctl.c, ioctl.h
iface.c, iface.h: support getting video memory from backdoor. ioctl.c, ioctl.h: support user mode application with additional information Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/via')
-rw-r--r--drivers/video/via/iface.c78
-rw-r--r--drivers/video/via/iface.h38
-rw-r--r--drivers/video/via/ioctl.c112
-rw-r--r--drivers/video/via/ioctl.h210
4 files changed, 438 insertions, 0 deletions
diff --git a/drivers/video/via/iface.c b/drivers/video/via/iface.c
new file mode 100644
index 000000000000..1570636c8d51
--- /dev/null
+++ b/drivers/video/via/iface.c
@@ -0,0 +1,78 @@
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/* Get frame buffer size from VGA BIOS */
25
26unsigned int viafb_get_memsize(void)
27{
28 unsigned int m;
29
30 /* If memory size provided by user */
31 if (viafb_memsize)
32 m = viafb_memsize * Mb;
33 else {
34 m = (unsigned int)viafb_read_reg(VIASR, SR39);
35 m = m * (4 * Mb);
36
37 if ((m < (16 * Mb)) || (m > (64 * Mb)))
38 m = 16 * Mb;
39 }
40 DEBUG_MSG(KERN_INFO "framebuffer size = %d Mb\n", m / Mb);
41 return m;
42}
43
44/* Get Video Buffer Starting Physical Address(back door)*/
45
46unsigned long viafb_get_videobuf_addr(void)
47{
48 struct pci_dev *pdev = NULL;
49 unsigned char sys_mem;
50 unsigned char video_mem;
51 unsigned long sys_mem_size;
52 unsigned long video_mem_size;
53 /*system memory = 256 MB, video memory 64 MB */
54 unsigned long vmem_starting_adr = 0x0C000000;
55
56 pdev =
57 (struct pci_dev *)pci_get_device(VIA_K800_BRIDGE_VID,
58 VIA_K800_BRIDGE_DID, NULL);
59 if (pdev != NULL) {
60 pci_read_config_byte(pdev, VIA_K800_SYSTEM_MEMORY_REG,
61 &sys_mem);
62 pci_read_config_byte(pdev, VIA_K800_VIDEO_MEMORY_REG,
63 &video_mem);
64 video_mem = (video_mem & 0x70) >> 4;
65 sys_mem_size = ((unsigned long)sys_mem) << 24;
66 if (video_mem != 0)
67 video_mem_size = (1 << (video_mem)) * 1024 * 1024;
68 else
69 video_mem_size = 0;
70
71 vmem_starting_adr = sys_mem_size - video_mem_size;
72 pci_dev_put(pdev);
73 }
74
75 DEBUG_MSG(KERN_INFO "Video Memory Starting Address = %lx \n",
76 vmem_starting_adr);
77 return vmem_starting_adr;
78}
diff --git a/drivers/video/via/iface.h b/drivers/video/via/iface.h
new file mode 100644
index 000000000000..790ec3e3aea2
--- /dev/null
+++ b/drivers/video/via/iface.h
@@ -0,0 +1,38 @@
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#ifndef __IFACE_H__
23#define __IFACE_H__
24
25#define Kb (1024)
26#define Mb (Kb*Kb)
27
28#define VIA_K800_BRIDGE_VID 0x1106
29#define VIA_K800_BRIDGE_DID 0x3204
30
31#define VIA_K800_SYSTEM_MEMORY_REG 0x47
32#define VIA_K800_VIDEO_MEMORY_REG 0xA1
33
34extern int viafb_memsize;
35unsigned int viafb_get_memsize(void);
36unsigned long viafb_get_videobuf_addr(void);
37
38#endif /* __IFACE_H__ */
diff --git a/drivers/video/via/ioctl.c b/drivers/video/via/ioctl.c
new file mode 100644
index 000000000000..da03c074e32a
--- /dev/null
+++ b/drivers/video/via/ioctl.c
@@ -0,0 +1,112 @@
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
24int viafb_ioctl_get_viafb_info(u_long arg)
25{
26 struct viafb_ioctl_info viainfo;
27
28 viainfo.viafb_id = VIAID;
29 viainfo.vendor_id = PCI_VIA_VENDOR_ID;
30
31 switch (viaparinfo->chip_info->gfx_chip_name) {
32 case UNICHROME_CLE266:
33 viainfo.device_id = UNICHROME_CLE266_DID;
34 break;
35
36 case UNICHROME_K400:
37 viainfo.device_id = UNICHROME_K400_DID;
38 break;
39
40 case UNICHROME_K800:
41 viainfo.device_id = UNICHROME_K800_DID;
42 break;
43
44 case UNICHROME_PM800:
45 viainfo.device_id = UNICHROME_PM800_DID;
46 break;
47
48 case UNICHROME_CN700:
49 viainfo.device_id = UNICHROME_CN700_DID;
50 break;
51
52 case UNICHROME_CX700:
53 viainfo.device_id = UNICHROME_CX700_DID;
54 break;
55
56 case UNICHROME_K8M890:
57 viainfo.device_id = UNICHROME_K8M890_DID;
58 break;
59
60 case UNICHROME_P4M890:
61 viainfo.device_id = UNICHROME_P4M890_DID;
62 break;
63
64 case UNICHROME_P4M900:
65 viainfo.device_id = UNICHROME_P4M900_DID;
66 break;
67 }
68
69 viainfo.version = VERSION_MAJOR;
70 viainfo.revision = VERSION_MINOR;
71
72 if (copy_to_user((void __user *)arg, &viainfo, sizeof(viainfo)))
73 return -EFAULT;
74
75 return 0;
76}
77
78/* Hot-Plug Priority: DVI > CRT*/
79int viafb_ioctl_hotplug(int hres, int vres, int bpp)
80{
81 int DVIsense, status = 0;
82 DEBUG_MSG(KERN_INFO "viafb_ioctl_hotplug!!\n");
83
84 if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name !=
85 NON_TMDS_TRANSMITTER) {
86 DVIsense = viafb_dvi_sense();
87
88 if (DVIsense) {
89 DEBUG_MSG(KERN_INFO "DVI Attached...\n");
90 if (viafb_DeviceStatus != DVI_Device) {
91 viafb_DVI_ON = 1;
92 viafb_CRT_ON = 0;
93 viafb_LCD_ON = 0;
94 viafb_DeviceStatus = DVI_Device;
95 return viafb_DeviceStatus;
96 }
97 status = 1;
98 } else
99 DEBUG_MSG(KERN_INFO "DVI De-attached...\n");
100 }
101
102 if ((viafb_DeviceStatus != CRT_Device) && (status == 0)) {
103 viafb_CRT_ON = 1;
104 viafb_DVI_ON = 0;
105 viafb_LCD_ON = 0;
106
107 viafb_DeviceStatus = CRT_Device;
108 return viafb_DeviceStatus;
109 }
110
111 return 0;
112}
diff --git a/drivers/video/via/ioctl.h b/drivers/video/via/ioctl.h
new file mode 100644
index 000000000000..842fe30b9868
--- /dev/null
+++ b/drivers/video/via/ioctl.h
@@ -0,0 +1,210 @@
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#ifndef __IOCTL_H__
23#define __IOCTL_H__
24
25#ifndef __user
26#define __user
27#endif
28
29/* VIAFB IOCTL definition */
30#define VIAFB_GET_INFO_SIZE 0x56494101 /* 'VIA\01' */
31#define VIAFB_GET_INFO 0x56494102 /* 'VIA\02' */
32#define VIAFB_HOTPLUG 0x56494103 /* 'VIA\03' */
33#define VIAFB_SET_HOTPLUG_FLAG 0x56494104 /* 'VIA\04' */
34#define VIAFB_GET_RESOLUTION 0x56494105 /* 'VIA\05' */
35#define VIAFB_GET_SAMM_INFO 0x56494107 /* 'VIA\07' */
36#define VIAFB_TURN_ON_OUTPUT_DEVICE 0x56494108 /* 'VIA\08' */
37#define VIAFB_TURN_OFF_OUTPUT_DEVICE 0x56494109 /* 'VIA\09' */
38#define VIAFB_SET_DEVICE 0x5649410A
39#define VIAFB_GET_DEVICE 0x5649410B
40#define VIAFB_GET_DRIVER_VERSION 0x56494112 /* 'VIA\12' */
41#define VIAFB_GET_CHIP_INFO 0x56494113 /* 'VIA\13' */
42#define VIAFB_SET_DEVICE_INFO 0x56494114
43#define VIAFB_GET_DEVICE_INFO 0x56494115
44
45#define VIAFB_GET_DEVICE_SUPPORT 0x56494118
46#define VIAFB_GET_DEVICE_CONNECT 0x56494119
47#define VIAFB_GET_PANEL_SUPPORT_EXPAND 0x5649411A
48#define VIAFB_GET_DRIVER_NAME 0x56494122
49#define VIAFB_GET_DEVICE_SUPPORT_STATE 0x56494123
50#define VIAFB_GET_GAMMA_LUT 0x56494124
51#define VIAFB_SET_GAMMA_LUT 0x56494125
52#define VIAFB_GET_GAMMA_SUPPORT_STATE 0x56494126
53#define VIAFB_SET_VIDEO_DEVICE 0x56494127
54#define VIAFB_GET_VIDEO_DEVICE 0x56494128
55#define VIAFB_SET_SECOND_MODE 0x56494129
56#define VIAFB_SYNC_SURFACE 0x56494130
57#define VIAFB_GET_DRIVER_CAPS 0x56494131
58#define VIAFB_GET_IGA_SCALING_INFO 0x56494132
59#define VIAFB_GET_PANEL_MAX_SIZE 0x56494133
60#define VIAFB_GET_PANEL_MAX_POSITION 0x56494134
61#define VIAFB_SET_PANEL_SIZE 0x56494135
62#define VIAFB_SET_PANEL_POSITION 0x56494136
63#define VIAFB_GET_PANEL_POSITION 0x56494137
64#define VIAFB_GET_PANEL_SIZE 0x56494138
65
66#define None_Device 0x00
67#define CRT_Device 0x01
68#define LCD_Device 0x02
69#define DVI_Device 0x08
70#define CRT2_Device 0x10
71#define LCD2_Device 0x40
72
73#define OP_LCD_CENTERING 0x01
74#define OP_LCD_PANEL_ID 0x02
75#define OP_LCD_MODE 0x03
76
77/*SAMM operation flag*/
78#define OP_SAMM 0x80
79
80#define LCD_PANEL_ID_MAXIMUM 22
81
82#define STATE_ON 0x1
83#define STATE_OFF 0x0
84#define STATE_DEFAULT 0xFFFF
85
86#define MAX_ACTIVE_DEV_NUM 2
87
88struct device_t {
89 unsigned short crt:1;
90 unsigned short dvi:1;
91 unsigned short lcd:1;
92 unsigned short samm:1;
93 unsigned short lcd_dsp_cent:1;
94 unsigned char lcd_mode:1;
95 unsigned short epia_dvi:1;
96 unsigned short lcd_dual_edge:1;
97 unsigned short lcd2:1;
98
99 unsigned short primary_dev;
100 unsigned char lcd_panel_id;
101 unsigned short xres, yres;
102 unsigned short xres1, yres1;
103 unsigned short refresh;
104 unsigned short bpp;
105 unsigned short refresh1;
106 unsigned short bpp1;
107 unsigned short sequence;
108 unsigned short bus_width;
109};
110
111struct viafb_ioctl_info {
112 u32 viafb_id; /* for identifying viafb */
113#define VIAID 0x56494146 /* Identify myself with 'VIAF' */
114 u16 vendor_id;
115 u16 device_id;
116 u8 version;
117 u8 revision;
118 u8 reserved[246]; /* for future use */
119};
120
121struct viafb_ioctl_mode {
122 u32 xres;
123 u32 yres;
124 u32 refresh;
125 u32 bpp;
126 u32 xres_sec;
127 u32 yres_sec;
128 u32 virtual_xres_sec;
129 u32 virtual_yres_sec;
130 u32 refresh_sec;
131 u32 bpp_sec;
132};
133struct viafb_ioctl_samm {
134 u32 samm_status;
135 u32 size_prim;
136 u32 size_sec;
137 u32 mem_base;
138 u32 offset_sec;
139};
140
141struct viafb_driver_version {
142 int iMajorNum;
143 int iKernelNum;
144 int iOSNum;
145 int iMinorNum;
146};
147
148struct viafb_ioctl_lcd_attribute {
149 unsigned int panel_id;
150 unsigned int display_center;
151 unsigned int lcd_mode;
152};
153
154struct viafb_ioctl_setting {
155 /* Enable or disable active devices */
156 unsigned short device_flag;
157 /* Indicate which device should be turn on or turn off. */
158 unsigned short device_status;
159 unsigned int reserved;
160 /* Indicate which LCD's attribute can be changed. */
161 unsigned short lcd_operation_flag;
162 /* 1: SAMM ON 0: SAMM OFF */
163 unsigned short samm_status;
164 /* horizontal resolution of first device */
165 unsigned short first_dev_hor_res;
166 /* vertical resolution of first device */
167 unsigned short first_dev_ver_res;
168 /* horizontal resolution of second device */
169 unsigned short second_dev_hor_res;
170 /* vertical resolution of second device */
171 unsigned short second_dev_ver_res;
172 /* refresh rate of first device */
173 unsigned short first_dev_refresh;
174 /* bpp of first device */
175 unsigned short first_dev_bpp;
176 /* refresh rate of second device */
177 unsigned short second_dev_refresh;
178 /* bpp of second device */
179 unsigned short second_dev_bpp;
180 /* Indicate which device are primary display device. */
181 unsigned int primary_device;
182 /* Indicate which device will show video. only valid in duoview mode */
183 unsigned int video_device_status;
184 unsigned int struct_reserved[34];
185 struct viafb_ioctl_lcd_attribute lcd_attributes;
186};
187
188struct _UTFunctionCaps {
189 unsigned int dw3DScalingState;
190 unsigned int reserved[31];
191};
192
193struct _POSITIONVALUE {
194 unsigned int dwX;
195 unsigned int dwY;
196};
197
198struct _panel_size_pos_info {
199 unsigned int device_type;
200 int x;
201 int y;
202};
203
204extern int viafb_LCD_ON;
205extern int viafb_DVI_ON;
206
207int viafb_ioctl_get_viafb_info(u_long arg);
208int viafb_ioctl_hotplug(int hres, int vres, int bpp);
209
210#endif /* __IOCTL_H__ */
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-16 04:13:46 -0400