| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * controlfb_hw.h: Constants of all sorts for controlfb |
| 3 | * |
| 4 | * Copyright (C) 1998 Daniel Jacobowitz <dan@debian.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * Based on an awful lot of code, including: |
| 12 | * |
| 13 | * control.c: Console support for PowerMac "control" display adaptor. |
| 14 | * Copyright (C) 1996 Paul Mackerras. |
| 15 | * |
| 16 | * The so far unpublished platinumfb.c |
| 17 | * Copyright (C) 1998 Jon Howell |
| 18 | */ |
| 19 | |
| 20 | /* |
| 21 | * Structure of the registers for the RADACAL colormap device. |
| 22 | */ |
| 23 | struct cmap_regs { |
| 24 | unsigned char addr; /* index for both cmap and misc registers */ |
| 25 | char pad1[15]; |
| 26 | unsigned char crsr; /* cursor palette */ |
| 27 | char pad2[15]; |
| 28 | unsigned char dat; /* RADACAL misc register data */ |
| 29 | char pad3[15]; |
| 30 | unsigned char lut; /* cmap data */ |
| 31 | char pad4[15]; |
| 32 | }; |
| 33 | |
| 34 | /* |
| 35 | * Structure of the registers for the "control" display adaptor. |
| 36 | */ |
| 37 | #define PAD(x) char x[12] |
| 38 | |
| 39 | struct preg { /* padded register */ |
| 40 | unsigned r; |
| 41 | char pad[12]; |
| 42 | }; |
| 43 | |
| 44 | struct control_regs { |
| 45 | struct preg vcount; /* vertical counter */ |
| 46 | /* Vertical parameters are in units of 1/2 scan line */ |
| 47 | struct preg vswin; /* between vsblank and vssync */ |
| 48 | struct preg vsblank; /* vert start blank */ |
| 49 | struct preg veblank; /* vert end blank (display start) */ |
| 50 | struct preg vewin; /* between vesync and veblank */ |
| 51 | struct preg vesync; /* vert end sync */ |
| 52 | struct preg vssync; /* vert start sync */ |
| 53 | struct preg vperiod; /* vert period */ |
| 54 | struct preg piped; /* pipe delay hardware cursor */ |
| 55 | /* Horizontal params are in units of 2 pixels */ |
| 56 | struct preg hperiod; /* horiz period - 2 */ |
| 57 | struct preg hsblank; /* horiz start blank */ |
| 58 | struct preg heblank; /* horiz end blank */ |
| 59 | struct preg hesync; /* horiz end sync */ |
| 60 | struct preg hssync; /* horiz start sync */ |
| 61 | struct preg heq; /* half horiz sync len */ |
| 62 | struct preg hlfln; /* half horiz period */ |
| 63 | struct preg hserr; /* horiz period - horiz sync len */ |
| 64 | struct preg cnttst; |
| 65 | struct preg ctrl; /* display control */ |
| 66 | struct preg start_addr; /* start address: 5 lsbs zero */ |
| 67 | struct preg pitch; /* addrs diff between scan lines */ |
| 68 | struct preg mon_sense; /* monitor sense bits */ |
| 69 | struct preg vram_attr; /* enable vram banks */ |
| 70 | struct preg mode; |
| 71 | struct preg rfrcnt; /* refresh count */ |
| 72 | struct preg intr_ena; /* interrupt enable */ |
| 73 | struct preg intr_stat; /* interrupt status */ |
| 74 | struct preg res[5]; |
| 75 | }; |
| 76 | |
| 77 | struct control_regints { |
| 78 | /* Vertical parameters are in units of 1/2 scan line */ |
| 79 | unsigned vswin; /* between vsblank and vssync */ |
| 80 | unsigned vsblank; /* vert start blank */ |
| 81 | unsigned veblank; /* vert end blank (display start) */ |
| 82 | unsigned vewin; /* between vesync and veblank */ |
| 83 | unsigned vesync; /* vert end sync */ |
| 84 | unsigned vssync; /* vert start sync */ |
| 85 | unsigned vperiod; /* vert period */ |
| 86 | unsigned piped; /* pipe delay hardware cursor */ |
| 87 | /* Horizontal params are in units of 2 pixels */ |
| 88 | /* Except, apparently, for hres > 1024 (or == 1280?) */ |
| 89 | unsigned hperiod; /* horiz period - 2 */ |
| 90 | unsigned hsblank; /* horiz start blank */ |
| 91 | unsigned heblank; /* horiz end blank */ |
| 92 | unsigned hesync; /* horiz end sync */ |
| 93 | unsigned hssync; /* horiz start sync */ |
| 94 | unsigned heq; /* half horiz sync len */ |
| 95 | unsigned hlfln; /* half horiz period */ |
| 96 | unsigned hserr; /* horiz period - horiz sync len */ |
| 97 | }; |
| 98 | |
| 99 | /* |
| 100 | * Dot clock rate is |
| 101 | * 3.9064MHz * 2**clock_params[2] * clock_params[1] / clock_params[0]. |
| 102 | */ |
| 103 | struct control_regvals { |
| 104 | unsigned regs[16]; /* for vswin .. hserr */ |
| 105 | unsigned char mode; |
| 106 | unsigned char radacal_ctrl; |
| 107 | unsigned char clock_params[3]; |
| 108 | }; |
| 109 | |
| 110 | #define CTRLFB_OFF 16 /* position of pixel 0 in frame buffer */ |
| 111 | |
| 112 | |
| 113 | /* |
| 114 | * Best cmode supported by control |
| 115 | */ |
| 116 | struct max_cmodes { |
| 117 | int m[2]; /* 0: 2MB vram, 1: 4MB vram */ |
| 118 | }; |
| 119 | |
| 120 | /* |
| 121 | * Video modes supported by macmodes.c |
| 122 | */ |
| 123 | static struct max_cmodes control_mac_modes[] = { |
| 124 | {{-1,-1}}, /* 512x384, 60Hz interlaced (NTSC) */ |
| 125 | {{-1,-1}}, /* 512x384, 60Hz */ |
| 126 | {{-1,-1}}, /* 640x480, 50Hz interlaced (PAL) */ |
| 127 | {{-1,-1}}, /* 640x480, 60Hz interlaced (NTSC) */ |
| 128 | {{ 2, 2}}, /* 640x480, 60Hz (VGA) */ |
| 129 | {{ 2, 2}}, /* 640x480, 67Hz */ |
| 130 | {{-1,-1}}, /* 640x870, 75Hz (portrait) */ |
| 131 | {{-1,-1}}, /* 768x576, 50Hz (PAL full frame) */ |
| 132 | {{ 2, 2}}, /* 800x600, 56Hz */ |
| 133 | {{ 2, 2}}, /* 800x600, 60Hz */ |
| 134 | {{ 2, 2}}, /* 800x600, 72Hz */ |
| 135 | {{ 2, 2}}, /* 800x600, 75Hz */ |
| 136 | {{ 1, 2}}, /* 832x624, 75Hz */ |
| 137 | {{ 1, 2}}, /* 1024x768, 60Hz */ |
| 138 | {{ 1, 2}}, /* 1024x768, 70Hz (or 72Hz?) */ |
| 139 | {{ 1, 2}}, /* 1024x768, 75Hz (VESA) */ |
| 140 | {{ 1, 2}}, /* 1024x768, 75Hz */ |
| 141 | {{ 1, 2}}, /* 1152x870, 75Hz */ |
| 142 | {{ 0, 1}}, /* 1280x960, 75Hz */ |
| 143 | {{ 0, 1}}, /* 1280x1024, 75Hz */ |
| 144 | }; |
| 145 | |