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1 | /* |
2 | * valkyriefb.h: Constants of all sorts for valkyriefb |
3 | * |
4 | * Created 8 August 1998 by |
5 | * Martin Costabel <costabel@wanadoo.fr> and Kevin Schoedel |
6 | * |
7 | * Vmode-switching changes and vmode 15/17 modifications created 29 August |
8 | * 1998 by Barry K. Nathan <barryn@pobox.com>. |
9 | * |
10 | * vmode 10 changed by Steven Borley <sjb@salix.demon.co.uk>, 14 mai 2000 |
11 | * |
12 | * Ported to 68k Macintosh by David Huggins-Daines <dhd@debian.org> |
13 | * |
14 | * This program is free software; you can redistribute it and/or |
15 | * modify it under the terms of the GNU General Public License |
16 | * as published by the Free Software Foundation; either version |
17 | * 2 of the License, or (at your option) any later version. |
18 | * |
19 | * Based directly on: |
20 | * |
21 | * controlfb.h: Constants of all sorts for controlfb |
22 | * Copyright (C) 1998 Daniel Jacobowitz <dan@debian.org> |
23 | * |
24 | * pmc-valkyrie.h: Console support for PowerMac "control" display adaptor. |
25 | * Copyright (C) 1997 Paul Mackerras. |
26 | * |
27 | * pmc-valkyrie.c: Console support for PowerMac "control" display adaptor. |
28 | * Copyright (C) 1997 Paul Mackerras. |
29 | * |
30 | * and indirectly from: |
31 | * |
32 | * pmc-control.h: Console support for PowerMac "control" display adaptor. |
33 | * Copyright (C) 1997 Paul Mackerras. |
34 | * |
35 | * pmc-control.c: Console support for PowerMac "control" display adaptor. |
36 | * Copyright (C) 1996 Paul Mackerras. |
37 | * |
38 | * platinumfb.c: Console support for PowerMac "platinum" display adaptor. |
39 | * Copyright (C) 1998 Jon Howell |
40 | */ |
41 | |
42 | #ifdef CONFIG_MAC |
43 | /* Valkyrie registers are word-aligned on m68k */ |
44 | #define VALKYRIE_REG_PADSIZE 3 |
45 | #else |
46 | #define VALKYRIE_REG_PADSIZE 7 |
47 | #endif |
48 | |
49 | /* |
50 | * Structure of the registers for the Valkyrie colormap registers. |
51 | */ |
52 | struct cmap_regs { |
53 | unsigned char addr; |
54 | char pad1[VALKYRIE_REG_PADSIZE]; |
55 | unsigned char lut; |
56 | }; |
57 | |
58 | /* |
59 | * Structure of the registers for the "valkyrie" display adaptor. |
60 | */ |
61 | |
62 | struct vpreg { /* padded register */ |
63 | unsigned char r; |
64 | char pad[VALKYRIE_REG_PADSIZE]; |
65 | }; |
66 | |
67 | |
68 | struct valkyrie_regs { |
69 | struct vpreg mode; |
70 | struct vpreg depth; |
71 | struct vpreg status; |
72 | struct vpreg reg3; |
73 | struct vpreg intr; |
74 | struct vpreg reg5; |
75 | struct vpreg intr_enb; |
76 | struct vpreg msense; |
77 | }; |
78 | |
79 | /* |
80 | * Register initialization tables for the valkyrie display. |
81 | * |
82 | * Dot clock rate is |
83 | * 3.9064MHz * 2**clock_params[2] * clock_params[1] / clock_params[0]. |
84 | */ |
85 | struct valkyrie_regvals { |
86 | unsigned char mode; |
87 | unsigned char clock_params[3]; |
88 | int pitch[2]; /* bytes/line, indexed by color_mode */ |
89 | int hres; |
90 | int vres; |
91 | }; |
92 | |
93 | #ifndef CONFIG_MAC |
94 | /* Register values for 1024x768, 75Hz mode (17) */ |
95 | /* I'm not sure which mode this is (16 or 17), so I'm defining it as 17, |
96 | * since the equivalent mode in controlfb (which I adapted this from) is |
97 | * also 17. Just because MacOS can't do this on Valkyrie doesn't mean we |
98 | * can't! :) |
99 | * |
100 | * I was going to use 12, 31, 3, which I found by myself, but instead I'm |
101 | * using 11, 28, 3 like controlfb, for consistency's sake. |
102 | */ |
103 | |
104 | static struct valkyrie_regvals valkyrie_reg_init_17 = { |
105 | 15, |
106 | { 11, 28, 3 }, /* pixel clock = 79.55MHz for V=74.50Hz */ |
107 | { 1024, 0 }, |
108 | 1024, 768 |
109 | }; |
110 | |
111 | /* Register values for 1024x768, 72Hz mode (15) */ |
112 | /* This used to be 12, 30, 3 for pixel clock = 78.12MHz for V=72.12Hz, but |
113 | * that didn't match MacOS in the same video mode on this chip, and it also |
114 | * caused the 15" Apple Studio Display to not work in this mode. While this |
115 | * mode still doesn't match MacOS exactly (as far as I can tell), it's a lot |
116 | * closer now, and it works with the Apple Studio Display. |
117 | * |
118 | * Yes, even though MacOS calls it "72Hz", in reality it's about 70Hz. |
119 | */ |
120 | static struct valkyrie_regvals valkyrie_reg_init_15 = { |
121 | 15, |
122 | { 12, 29, 3 }, /* pixel clock = 75.52MHz for V=69.71Hz? */ |
123 | /* I interpolated the V=69.71 from the vmode 14 and old 15 |
124 | * numbers. Is this result correct? |
125 | */ |
126 | { 1024, 0 }, |
127 | 1024, 768 |
128 | }; |
129 | |
130 | /* Register values for 1024x768, 60Hz mode (14) */ |
131 | static struct valkyrie_regvals valkyrie_reg_init_14 = { |
132 | 14, |
133 | { 15, 31, 3 }, /* pixel clock = 64.58MHz for V=59.62Hz */ |
134 | { 1024, 0 }, |
135 | 1024, 768 |
136 | }; |
137 | #endif /* !defined CONFIG_MAC */ |
138 | |
139 | /* Register values for 832x624, 75Hz mode (13) */ |
140 | static struct valkyrie_regvals valkyrie_reg_init_13 = { |
141 | 9, |
142 | { 23, 42, 3 }, /* pixel clock = 57.07MHz for V=74.27Hz */ |
143 | { 832, 0 }, |
144 | 832, 624 |
145 | }; |
146 | |
147 | /* Register values for 800x600, 72Hz mode (11) */ |
148 | static struct valkyrie_regvals valkyrie_reg_init_11 = { |
149 | 13, |
150 | { 17, 27, 3 }, /* pixel clock = 49.63MHz for V=71.66Hz */ |
151 | { 800, 0 }, |
152 | 800, 600 |
153 | }; |
154 | |
155 | /* Register values for 800x600, 60Hz mode (10) */ |
156 | static struct valkyrie_regvals valkyrie_reg_init_10 = { |
157 | 12, |
158 | { 25, 32, 3 }, /* pixel clock = 40.0015MHz, |
159 | used to be 20,53,2, pixel clock 41.41MHz for V=59.78Hz */ |
160 | { 800, 1600 }, |
161 | 800, 600 |
162 | }; |
163 | |
164 | /* Register values for 640x480, 67Hz mode (6) */ |
165 | static struct valkyrie_regvals valkyrie_reg_init_6 = { |
166 | 6, |
167 | { 14, 27, 2 }, /* pixel clock = 30.13MHz for V=66.43Hz */ |
168 | { 640, 1280 }, |
169 | 640, 480 |
170 | }; |
171 | |
172 | /* Register values for 640x480, 60Hz mode (5) */ |
173 | static struct valkyrie_regvals valkyrie_reg_init_5 = { |
174 | 11, |
175 | { 23, 37, 2 }, /* pixel clock = 25.14MHz for V=59.85Hz */ |
176 | { 640, 1280 }, |
177 | 640, 480 |
178 | }; |
179 | |
180 | static struct valkyrie_regvals *valkyrie_reg_init[VMODE_MAX] = { |
181 | NULL, |
182 | NULL, |
183 | NULL, |
184 | NULL, |
185 | &valkyrie_reg_init_5, |
186 | &valkyrie_reg_init_6, |
187 | NULL, |
188 | NULL, |
189 | NULL, |
190 | &valkyrie_reg_init_10, |
191 | &valkyrie_reg_init_11, |
192 | NULL, |
193 | &valkyrie_reg_init_13, |
194 | #ifndef CONFIG_MAC |
195 | &valkyrie_reg_init_14, |
196 | &valkyrie_reg_init_15, |
197 | NULL, |
198 | &valkyrie_reg_init_17, |
199 | #endif |
200 | }; |
201 |
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