controlfb.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:5k
- /*
- * controlfb_hw.h: Constants of all sorts for controlfb
- *
- * Copyright (C) 1998 Daniel Jacobowitz <dan@debian.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Based on an awful lot of code, including:
- *
- * control.c: Console support for PowerMac "control" display adaptor.
- * Copyright (C) 1996 Paul Mackerras.
- *
- * The so far unpublished platinumfb.c
- * Copyright (C) 1998 Jon Howell
- */
- /*
- * Structure of the registers for the RADACAL colormap device.
- */
- struct cmap_regs {
- unsigned char addr; /* index for both cmap and misc registers */
- char pad1[15];
- unsigned char crsr; /* cursor palette */
- char pad2[15];
- unsigned char dat; /* RADACAL misc register data */
- char pad3[15];
- unsigned char lut; /* cmap data */
- char pad4[15];
- };
- /*
- * Structure of the registers for the "control" display adaptor.
- */
- #define PAD(x) char x[12]
- struct preg { /* padded register */
- unsigned r;
- char pad[12];
- };
- struct control_regs {
- struct preg vcount; /* vertical counter */
- /* Vertical parameters are in units of 1/2 scan line */
- struct preg vswin; /* between vsblank and vssync */
- struct preg vsblank; /* vert start blank */
- struct preg veblank; /* vert end blank (display start) */
- struct preg vewin; /* between vesync and veblank */
- struct preg vesync; /* vert end sync */
- struct preg vssync; /* vert start sync */
- struct preg vperiod; /* vert period */
- struct preg piped; /* pipe delay hardware cursor */
- /* Horizontal params are in units of 2 pixels */
- struct preg hperiod; /* horiz period - 2 */
- struct preg hsblank; /* horiz start blank */
- struct preg heblank; /* horiz end blank */
- struct preg hesync; /* horiz end sync */
- struct preg hssync; /* horiz start sync */
- struct preg heq; /* half horiz sync len */
- struct preg hlfln; /* half horiz period */
- struct preg hserr; /* horiz period - horiz sync len */
- struct preg cnttst;
- struct preg ctrl; /* display control */
- struct preg start_addr; /* start address: 5 lsbs zero */
- struct preg pitch; /* addrs diff between scan lines */
- struct preg mon_sense; /* monitor sense bits */
- struct preg vram_attr; /* enable vram banks */
- struct preg mode;
- struct preg rfrcnt; /* refresh count */
- struct preg intr_ena; /* interrupt enable */
- struct preg intr_stat; /* interrupt status */
- struct preg res[5];
- };
- struct control_regints {
- /* Vertical parameters are in units of 1/2 scan line */
- unsigned vswin; /* between vsblank and vssync */
- unsigned vsblank; /* vert start blank */
- unsigned veblank; /* vert end blank (display start) */
- unsigned vewin; /* between vesync and veblank */
- unsigned vesync; /* vert end sync */
- unsigned vssync; /* vert start sync */
- unsigned vperiod; /* vert period */
- unsigned piped; /* pipe delay hardware cursor */
- /* Horizontal params are in units of 2 pixels */
- /* Except, apparently, for hres > 1024 (or == 1280?) */
- unsigned hperiod; /* horiz period - 2 */
- unsigned hsblank; /* horiz start blank */
- unsigned heblank; /* horiz end blank */
- unsigned hesync; /* horiz end sync */
- unsigned hssync; /* horiz start sync */
- unsigned heq; /* half horiz sync len */
- unsigned hlfln; /* half horiz period */
- unsigned hserr; /* horiz period - horiz sync len */
- };
-
- /*
- * Dot clock rate is
- * 3.9064MHz * 2**clock_params[2] * clock_params[1] / clock_params[0].
- */
- struct control_regvals {
- unsigned regs[16]; /* for vswin .. hserr */
- unsigned char mode;
- unsigned char radacal_ctrl;
- unsigned char clock_params[3];
- };
- #define CTRLFB_OFF 16 /* position of pixel 0 in frame buffer */
- /*
- * Best cmode supported by control
- */
- struct max_cmodes {
- int m[2]; /* 0: 2MB vram, 1: 4MB vram */
- };
- /*
- * Video modes supported by macmodes.c
- */
- static struct max_cmodes control_mac_modes[] = {
- {{-1,-1}}, /* 512x384, 60Hz interlaced (NTSC) */
- {{-1,-1}}, /* 512x384, 60Hz */
- {{-1,-1}}, /* 640x480, 50Hz interlaced (PAL) */
- {{-1,-1}}, /* 640x480, 60Hz interlaced (NTSC) */
- {{ 2, 2}}, /* 640x480, 60Hz (VGA) */
- {{ 2, 2}}, /* 640x480, 67Hz */
- {{-1,-1}}, /* 640x870, 75Hz (portrait) */
- {{-1,-1}}, /* 768x576, 50Hz (PAL full frame) */
- {{ 2, 2}}, /* 800x600, 56Hz */
- {{ 2, 2}}, /* 800x600, 60Hz */
- {{ 2, 2}}, /* 800x600, 72Hz */
- {{ 2, 2}}, /* 800x600, 75Hz */
- {{ 1, 2}}, /* 832x624, 75Hz */
- {{ 1, 2}}, /* 1024x768, 60Hz */
- {{ 1, 2}}, /* 1024x768, 70Hz (or 72Hz?) */
- {{ 1, 2}}, /* 1024x768, 75Hz (VESA) */
- {{ 1, 2}}, /* 1024x768, 75Hz */
- {{ 1, 2}}, /* 1152x870, 75Hz */
- {{ 0, 1}}, /* 1280x960, 75Hz */
- {{ 0, 1}}, /* 1280x1024, 75Hz */
- };