2 * linux/drivers/video/acornfb.h
4 * Copyright (C) 1998,1999 Russell King
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * Frame buffer code for Acorn platforms
12 #if defined(HAS_VIDC20)
13 #include <asm/hardware/iomd.h>
14 #define VIDC_PALETTE_SIZE 256
15 #define VIDC_NAME "VIDC20"
16 #elif defined(HAS_VIDC)
17 #include <asm/hardware/memc.h>
18 #define VIDC_PALETTE_SIZE 16
19 #define VIDC_NAME "VIDC"
22 #define EXTEND8(x) ((x)|(x)<<8)
23 #define EXTEND4(x) ((x)|(x)<<4|(x)<<8|(x)<<12)
25 struct vidc20_palette
{
44 struct vidc20_palette vidc20
;
45 struct vidc_palette vidc
;
51 unsigned long screen_end
;
52 unsigned int dram_size
;
53 unsigned int vram_half_sam
;
54 unsigned int palette_size
;
56 unsigned int using_vram
: 1;
57 unsigned int dpms
: 1;
59 union palette palette
[VIDC_PALETTE_SIZE
];
61 u32 pseudo_palette
[16];
68 u_int h_display_start
;
76 u_int v_display_start
;
101 const struct modey_params
*modey
;
106 #define VID_CTL_VS_NVSYNC (1 << 3)
107 #define VID_CTL_HS_NHSYNC (1 << 2)
108 #define VID_CTL_24MHz (0)
109 #define VID_CTL_25MHz (1)
110 #define VID_CTL_36MHz (2)
112 #define VIDC_CTRL_CSYNC (1 << 7)
113 #define VIDC_CTRL_INTERLACE (1 << 6)
114 #define VIDC_CTRL_FIFO_0_4 (0 << 4)
115 #define VIDC_CTRL_FIFO_1_5 (1 << 4)
116 #define VIDC_CTRL_FIFO_2_6 (2 << 4)
117 #define VIDC_CTRL_FIFO_3_7 (3 << 4)
118 #define VIDC_CTRL_1BPP (0 << 2)
119 #define VIDC_CTRL_2BPP (1 << 2)
120 #define VIDC_CTRL_4BPP (2 << 2)
121 #define VIDC_CTRL_8BPP (3 << 2)
122 #define VIDC_CTRL_DIV3 (0 << 0)
123 #define VIDC_CTRL_DIV2 (1 << 0)
124 #define VIDC_CTRL_DIV1_5 (2 << 0)
125 #define VIDC_CTRL_DIV1 (3 << 0)
133 #define VIDC20_CTRL 0xe0000000
134 #define VIDC20_CTRL_PIX_VCLK (0 << 0)
135 #define VIDC20_CTRL_PIX_HCLK (1 << 0)
136 #define VIDC20_CTRL_PIX_RCLK (2 << 0)
137 #define VIDC20_CTRL_PIX_CK (0 << 2)
138 #define VIDC20_CTRL_PIX_CK2 (1 << 2)
139 #define VIDC20_CTRL_PIX_CK3 (2 << 2)
140 #define VIDC20_CTRL_PIX_CK4 (3 << 2)
141 #define VIDC20_CTRL_PIX_CK5 (4 << 2)
142 #define VIDC20_CTRL_PIX_CK6 (5 << 2)
143 #define VIDC20_CTRL_PIX_CK7 (6 << 2)
144 #define VIDC20_CTRL_PIX_CK8 (7 << 2)
145 #define VIDC20_CTRL_1BPP (0 << 5)
146 #define VIDC20_CTRL_2BPP (1 << 5)
147 #define VIDC20_CTRL_4BPP (2 << 5)
148 #define VIDC20_CTRL_8BPP (3 << 5)
149 #define VIDC20_CTRL_16BPP (4 << 5)
150 #define VIDC20_CTRL_32BPP (6 << 5)
151 #define VIDC20_CTRL_FIFO_NS (0 << 8)
152 #define VIDC20_CTRL_FIFO_4 (1 << 8)
153 #define VIDC20_CTRL_FIFO_8 (2 << 8)
154 #define VIDC20_CTRL_FIFO_12 (3 << 8)
155 #define VIDC20_CTRL_FIFO_16 (4 << 8)
156 #define VIDC20_CTRL_FIFO_20 (5 << 8)
157 #define VIDC20_CTRL_FIFO_24 (6 << 8)
158 #define VIDC20_CTRL_FIFO_28 (7 << 8)
159 #define VIDC20_CTRL_INT (1 << 12)
160 #define VIDC20_CTRL_DUP (1 << 13)
161 #define VIDC20_CTRL_PDOWN (1 << 14)
163 #define VIDC20_ECTL 0xc0000000
164 #define VIDC20_ECTL_REG(x) ((x) & 0xf3)
165 #define VIDC20_ECTL_ECK (1 << 2)
166 #define VIDC20_ECTL_REDPED (1 << 8)
167 #define VIDC20_ECTL_GREENPED (1 << 9)
168 #define VIDC20_ECTL_BLUEPED (1 << 10)
169 #define VIDC20_ECTL_DAC (1 << 12)
170 #define VIDC20_ECTL_LCDGS (1 << 13)
171 #define VIDC20_ECTL_HRM (1 << 14)
173 #define VIDC20_ECTL_HS_MASK (3 << 16)
174 #define VIDC20_ECTL_HS_HSYNC (0 << 16)
175 #define VIDC20_ECTL_HS_NHSYNC (1 << 16)
176 #define VIDC20_ECTL_HS_CSYNC (2 << 16)
177 #define VIDC20_ECTL_HS_NCSYNC (3 << 16)
179 #define VIDC20_ECTL_VS_MASK (3 << 18)
180 #define VIDC20_ECTL_VS_VSYNC (0 << 18)
181 #define VIDC20_ECTL_VS_NVSYNC (1 << 18)
182 #define VIDC20_ECTL_VS_CSYNC (2 << 18)
183 #define VIDC20_ECTL_VS_NCSYNC (3 << 18)
185 #define VIDC20_DCTL 0xf0000000
186 /* 0-9 = number of words in scanline */
187 #define VIDC20_DCTL_SNA (1 << 12)
188 #define VIDC20_DCTL_HDIS (1 << 13)
189 #define VIDC20_DCTL_BUS_NS (0 << 16)
190 #define VIDC20_DCTL_BUS_D31_0 (1 << 16)
191 #define VIDC20_DCTL_BUS_D63_32 (2 << 16)
192 #define VIDC20_DCTL_BUS_D63_0 (3 << 16)
193 #define VIDC20_DCTL_VRAM_DIS (0 << 18)
194 #define VIDC20_DCTL_VRAM_PXCLK (1 << 18)
195 #define VIDC20_DCTL_VRAM_PXCLK2 (2 << 18)
196 #define VIDC20_DCTL_VRAM_PXCLK4 (3 << 18)