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