xref: /openbmc/linux/include/video/tdfx.h (revision f5c27da4)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _TDFX_H
3 #define _TDFX_H
4 
5 #include <linux/i2c.h>
6 #include <linux/i2c-algo-bit.h>
7 
8 /* membase0 register offsets */
9 #define STATUS		0x00
10 #define PCIINIT0	0x04
11 #define SIPMONITOR	0x08
12 #define LFBMEMORYCONFIG	0x0c
13 #define MISCINIT0	0x10
14 #define MISCINIT1	0x14
15 #define DRAMINIT0	0x18
16 #define DRAMINIT1	0x1c
17 #define AGPINIT		0x20
18 #define TMUGBEINIT	0x24
19 #define VGAINIT0	0x28
20 #define VGAINIT1	0x2c
21 #define DRAMCOMMAND	0x30
22 #define DRAMDATA	0x34
23 /* reserved	0x38 */
24 /* reserved	0x3c */
25 #define PLLCTRL0	0x40
26 #define PLLCTRL1	0x44
27 #define PLLCTRL2	0x48
28 #define DACMODE		0x4c
29 #define DACADDR		0x50
30 #define DACDATA		0x54
31 #define RGBMAXDELTA	0x58
32 #define VIDPROCCFG	0x5c
33 #define HWCURPATADDR	0x60
34 #define HWCURLOC	0x64
35 #define HWCURC0		0x68
36 #define HWCURC1		0x6c
37 #define VIDINFORMAT	0x70
38 #define VIDINSTATUS	0x74
39 #define VIDSERPARPORT	0x78
40 #define VIDINXDELTA	0x7c
41 #define VIDININITERR	0x80
42 #define VIDINYDELTA	0x84
43 #define VIDPIXBUFTHOLD	0x88
44 #define VIDCHRMIN	0x8c
45 #define VIDCHRMAX	0x90
46 #define VIDCURLIN	0x94
47 #define VIDSCREENSIZE	0x98
48 #define VIDOVRSTARTCRD	0x9c
49 #define VIDOVRENDCRD	0xa0
50 #define VIDOVRDUDX	0xa4
51 #define VIDOVRDUDXOFF	0xa8
52 #define VIDOVRDVDY	0xac
53 /* ... */
54 #define VIDOVRDVDYOFF	0xe0
55 #define VIDDESKSTART	0xe4
56 #define VIDDESKSTRIDE	0xe8
57 #define VIDINADDR0	0xec
58 #define VIDINADDR1	0xf0
59 #define VIDINADDR2	0xf4
60 #define VIDINSTRIDE	0xf8
61 #define VIDCUROVRSTART	0xfc
62 
63 #define INTCTRL		(0x00100000 + 0x04)
64 #define CLIP0MIN	(0x00100000 + 0x08)
65 #define CLIP0MAX	(0x00100000 + 0x0c)
66 #define DSTBASE		(0x00100000 + 0x10)
67 #define DSTFORMAT	(0x00100000 + 0x14)
68 #define SRCBASE		(0x00100000 + 0x34)
69 #define COMMANDEXTRA_2D	(0x00100000 + 0x38)
70 #define CLIP1MIN	(0x00100000 + 0x4c)
71 #define CLIP1MAX	(0x00100000 + 0x50)
72 #define SRCFORMAT	(0x00100000 + 0x54)
73 #define SRCSIZE		(0x00100000 + 0x58)
74 #define SRCXY		(0x00100000 + 0x5c)
75 #define COLORBACK	(0x00100000 + 0x60)
76 #define COLORFORE	(0x00100000 + 0x64)
77 #define DSTSIZE		(0x00100000 + 0x68)
78 #define DSTXY		(0x00100000 + 0x6c)
79 #define COMMAND_2D	(0x00100000 + 0x70)
80 #define LAUNCH_2D	(0x00100000 + 0x80)
81 
82 #define COMMAND_3D	(0x00200000 + 0x120)
83 
84 /* register bitfields (not all, only as needed) */
85 
86 /* COMMAND_2D reg. values */
87 #define TDFX_ROP_COPY		0xcc	/* src */
88 #define TDFX_ROP_INVERT		0x55	/* NOT dst */
89 #define TDFX_ROP_XOR		0x66	/* src XOR dst */
90 
91 #define AUTOINC_DSTX			BIT(10)
92 #define AUTOINC_DSTY			BIT(11)
93 #define COMMAND_2D_FILLRECT		0x05
94 #define COMMAND_2D_S2S_BITBLT		0x01	/* screen to screen */
95 #define COMMAND_2D_H2S_BITBLT		0x03	/* host to screen */
96 
97 #define COMMAND_3D_NOP			0x00
98 #define STATUS_RETRACE			BIT(6)
99 #define STATUS_BUSY			BIT(9)
100 #define MISCINIT1_CLUT_INV		BIT(0)
101 #define MISCINIT1_2DBLOCK_DIS		BIT(15)
102 #define DRAMINIT0_SGRAM_NUM		BIT(26)
103 #define DRAMINIT0_SGRAM_TYPE		BIT(27)
104 #define DRAMINIT0_SGRAM_TYPE_MASK       (BIT(27) | BIT(28) | BIT(29))
105 #define DRAMINIT0_SGRAM_TYPE_SHIFT      27
106 #define DRAMINIT1_MEM_SDRAM		BIT(30)
107 #define VGAINIT0_VGA_DISABLE		BIT(0)
108 #define VGAINIT0_EXT_TIMING		BIT(1)
109 #define VGAINIT0_8BIT_DAC		BIT(2)
110 #define VGAINIT0_EXT_ENABLE		BIT(6)
111 #define VGAINIT0_WAKEUP_3C3		BIT(8)
112 #define VGAINIT0_LEGACY_DISABLE		BIT(9)
113 #define VGAINIT0_ALT_READBACK		BIT(10)
114 #define VGAINIT0_FAST_BLINK		BIT(11)
115 #define VGAINIT0_EXTSHIFTOUT		BIT(12)
116 #define VGAINIT0_DECODE_3C6		BIT(13)
117 #define VGAINIT0_SGRAM_HBLANK_DISABLE	BIT(22)
118 #define VGAINIT1_MASK			0x1fffff
119 #define VIDCFG_VIDPROC_ENABLE		BIT(0)
120 #define VIDCFG_CURS_X11			BIT(1)
121 #define VIDCFG_INTERLACE		BIT(3)
122 #define VIDCFG_HALF_MODE		BIT(4)
123 #define VIDCFG_DESK_ENABLE		BIT(7)
124 #define VIDCFG_CLUT_BYPASS		BIT(10)
125 #define VIDCFG_2X			BIT(26)
126 #define VIDCFG_HWCURSOR_ENABLE		BIT(27)
127 #define VIDCFG_PIXFMT_SHIFT             18
128 #define DACMODE_2X			BIT(0)
129 
130 /* I2C bit locations in the VIDSERPARPORT register */
131 #define DDC_ENAB	0x00040000
132 #define DDC_SCL_OUT	0x00080000
133 #define DDC_SDA_OUT	0x00100000
134 #define DDC_SCL_IN	0x00200000
135 #define DDC_SDA_IN	0x00400000
136 #define I2C_ENAB	0x00800000
137 #define I2C_SCL_OUT	0x01000000
138 #define I2C_SDA_OUT	0x02000000
139 #define I2C_SCL_IN	0x04000000
140 #define I2C_SDA_IN	0x08000000
141 
142 /* VGA rubbish, need to change this for multihead support */
143 #define MISC_W		0x3c2
144 #define MISC_R		0x3cc
145 #define SEQ_I		0x3c4
146 #define SEQ_D		0x3c5
147 #define CRT_I		0x3d4
148 #define CRT_D		0x3d5
149 #define ATT_IW		0x3c0
150 #define IS1_R		0x3da
151 #define GRA_I		0x3ce
152 #define GRA_D		0x3cf
153 
154 #ifdef __KERNEL__
155 
156 struct banshee_reg {
157 	/* VGA rubbish */
158 	unsigned char att[21];
159 	unsigned char crt[25];
160 	unsigned char gra[9];
161 	unsigned char misc[1];
162 	unsigned char seq[5];
163 
164 	/* Banshee extensions */
165 	unsigned char ext[2];
166 	unsigned long vidcfg;
167 	unsigned long vidpll;
168 	unsigned long mempll;
169 	unsigned long gfxpll;
170 	unsigned long dacmode;
171 	unsigned long vgainit0;
172 	unsigned long vgainit1;
173 	unsigned long screensize;
174 	unsigned long stride;
175 	unsigned long cursloc;
176 	unsigned long curspataddr;
177 	unsigned long cursc0;
178 	unsigned long cursc1;
179 	unsigned long startaddr;
180 	unsigned long clip0min;
181 	unsigned long clip0max;
182 	unsigned long clip1min;
183 	unsigned long clip1max;
184 	unsigned long miscinit0;
185 };
186 
187 struct tdfx_par;
188 
189 struct tdfxfb_i2c_chan {
190 	struct tdfx_par *par;
191 	struct i2c_adapter adapter;
192 	struct i2c_algo_bit_data algo;
193 };
194 
195 struct tdfx_par {
196 	u32 max_pixclock;
197 	u32 palette[16];
198 	void __iomem *regbase_virt;
199 	unsigned long iobase;
200 	int wc_cookie;
201 #ifdef CONFIG_FB_3DFX_I2C
202 	struct tdfxfb_i2c_chan chan[2];
203 #endif
204 };
205 
206 #endif	/* __KERNEL__ */
207 
208 #endif	/* _TDFX_H */
209 
210