[linux.git] / drivers / video / controlfb.h

/*
 * controlfb_hw.h: Constants of all sorts for controlfb
 *
 * Copyright (C) 1998 Daniel Jacobowitz <[email protected]>
 *
 * 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 * The so far unpublished platinumfb.c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 */
};
Commit	Line	Data
1da177e4 LT	1	/*
	2	* controlfb_hw.h: Constants of all sorts for controlfb
	3	*
	4	* Copyright (C) 1998 Daniel Jacobowitz <[email protected]>
	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