xref: /openbmc/linux/drivers/video/fbdev/sm712.h (revision bbb774d9)
1 /*
2  * Silicon Motion SM712 frame buffer device
3  *
4  * Copyright (C) 2006 Silicon Motion Technology Corp.
5  * Authors:	Ge Wang, gewang@siliconmotion.com
6  *		Boyod boyod.yang@siliconmotion.com.cn
7  *
8  * Copyright (C) 2009 Lemote, Inc.
9  * Author: Wu Zhangjin, wuzhangjin@gmail.com
10  *
11  *  This file is subject to the terms and conditions of the GNU General Public
12  *  License. See the file COPYING in the main directory of this archive for
13  *  more details.
14  */
15 
16 #define FB_ACCEL_SMI_LYNX 88
17 
18 #define SCREEN_X_RES          1024
19 #define SCREEN_Y_RES_PC       768
20 #define SCREEN_Y_RES_NETBOOK  600
21 #define SCREEN_BPP            16
22 
23 #define dac_reg	(0x3c8)
24 #define dac_val	(0x3c9)
25 
26 extern void __iomem *smtc_regbaseaddress;
27 #define smtc_mmiowb(dat, reg)	writeb(dat, smtc_regbaseaddress + reg)
28 
29 #define smtc_mmiorb(reg)	readb(smtc_regbaseaddress + reg)
30 
31 #define SIZE_SR00_SR04      (0x04 - 0x00 + 1)
32 #define SIZE_SR10_SR24      (0x24 - 0x10 + 1)
33 #define SIZE_SR30_SR75      (0x75 - 0x30 + 1)
34 #define SIZE_SR80_SR93      (0x93 - 0x80 + 1)
35 #define SIZE_SRA0_SRAF      (0xAF - 0xA0 + 1)
36 #define SIZE_GR00_GR08      (0x08 - 0x00 + 1)
37 #define SIZE_AR00_AR14      (0x14 - 0x00 + 1)
38 #define SIZE_CR00_CR18      (0x18 - 0x00 + 1)
39 #define SIZE_CR30_CR4D      (0x4D - 0x30 + 1)
40 #define SIZE_CR90_CRA7      (0xA7 - 0x90 + 1)
41 
42 static inline void smtc_crtcw(int reg, int val)
43 {
44 	smtc_mmiowb(reg, 0x3d4);
45 	smtc_mmiowb(val, 0x3d5);
46 }
47 
48 static inline void smtc_grphw(int reg, int val)
49 {
50 	smtc_mmiowb(reg, 0x3ce);
51 	smtc_mmiowb(val, 0x3cf);
52 }
53 
54 static inline void smtc_attrw(int reg, int val)
55 {
56 	smtc_mmiorb(0x3da);
57 	smtc_mmiowb(reg, 0x3c0);
58 	smtc_mmiorb(0x3c1);
59 	smtc_mmiowb(val, 0x3c0);
60 }
61 
62 static inline void smtc_seqw(int reg, int val)
63 {
64 	smtc_mmiowb(reg, 0x3c4);
65 	smtc_mmiowb(val, 0x3c5);
66 }
67 
68 static inline unsigned int smtc_seqr(int reg)
69 {
70 	smtc_mmiowb(reg, 0x3c4);
71 	return smtc_mmiorb(0x3c5);
72 }
73 
74 /* The next structure holds all information relevant for a specific video mode.
75  */
76 
77 struct modeinit {
78 	int mmsizex;
79 	int mmsizey;
80 	int bpp;
81 	int hz;
82 	unsigned char init_misc;
83 	unsigned char init_sr00_sr04[SIZE_SR00_SR04];
84 	unsigned char init_sr10_sr24[SIZE_SR10_SR24];
85 	unsigned char init_sr30_sr75[SIZE_SR30_SR75];
86 	unsigned char init_sr80_sr93[SIZE_SR80_SR93];
87 	unsigned char init_sra0_sraf[SIZE_SRA0_SRAF];
88 	unsigned char init_gr00_gr08[SIZE_GR00_GR08];
89 	unsigned char init_ar00_ar14[SIZE_AR00_AR14];
90 	unsigned char init_cr00_cr18[SIZE_CR00_CR18];
91 	unsigned char init_cr30_cr4d[SIZE_CR30_CR4D];
92 	unsigned char init_cr90_cra7[SIZE_CR90_CRA7];
93 };
94 
95 #ifdef __BIG_ENDIAN
96 #define pal_rgb(r, g, b, val)	(((r & 0xf800) >> 8) | \
97 				((g & 0xe000) >> 13) | \
98 				((g & 0x1c00) << 3) | \
99 				((b & 0xf800) >> 3))
100 #define big_addr		0x800000
101 #define mmio_addr		0x00800000
102 #define seqw17()		smtc_seqw(0x17, 0x30)
103 #define big_pixel_depth(p, d)	{if (p == 24) {p = 32; d = 32; } }
104 #define big_swap(p)		((p & 0xff00ff00 >> 8) | (p & 0x00ff00ff << 8))
105 #else
106 #define pal_rgb(r, g, b, val)	val
107 #define big_addr		0
108 #define mmio_addr		0x00c00000
109 #define seqw17()		do { } while (0)
110 #define big_pixel_depth(p, d)	do { } while (0)
111 #define big_swap(p)		p
112 #endif
113