1/* 2** asm-m68k/amigahw.h -- This header defines some macros and pointers for 3** the various Amiga custom hardware registers. 4** The naming conventions used here conform to those 5** used in the Amiga Hardware Reference Manual, 3rd Edition 6** 7** Copyright 1992 by Greg Harp 8** 9** This file is subject to the terms and conditions of the GNU General Public 10** License. See the file COPYING in the main directory of this archive 11** for more details. 12** 13** Created: 9/24/92 by Greg Harp 14*/ 15 16#ifndef _M68K_AMIGAHW_H 17#define _M68K_AMIGAHW_H 18 19#include <linux/ioport.h> 20 21 /* 22 * Different Amiga models 23 */ 24 25#define AMI_UNKNOWN (0) 26#define AMI_500 (1) 27#define AMI_500PLUS (2) 28#define AMI_600 (3) 29#define AMI_1000 (4) 30#define AMI_1200 (5) 31#define AMI_2000 (6) 32#define AMI_2500 (7) 33#define AMI_3000 (8) 34#define AMI_3000T (9) 35#define AMI_3000PLUS (10) 36#define AMI_4000 (11) 37#define AMI_4000T (12) 38#define AMI_CDTV (13) 39#define AMI_CD32 (14) 40#define AMI_DRACO (15) 41 42 43 /* 44 * Chipsets 45 */ 46 47extern unsigned long amiga_chipset; 48 49#define CS_STONEAGE (0) 50#define CS_OCS (1) 51#define CS_ECS (2) 52#define CS_AGA (3) 53 54 55 /* 56 * Miscellaneous 57 */ 58 59extern unsigned long amiga_eclock; /* 700 kHz E Peripheral Clock */ 60extern unsigned long amiga_colorclock; /* 3.5 MHz Color Clock */ 61extern unsigned long amiga_chip_size; /* Chip RAM Size (bytes) */ 62extern unsigned char amiga_vblank; /* VBLANK Frequency */ 63 64 65#define AMIGAHW_DECLARE(name) unsigned name : 1 66#define AMIGAHW_SET(name) (amiga_hw_present.name = 1) 67#define AMIGAHW_PRESENT(name) (amiga_hw_present.name) 68 69struct amiga_hw_present { 70 /* video hardware */ 71 AMIGAHW_DECLARE(AMI_VIDEO); /* Amiga Video */ 72 AMIGAHW_DECLARE(AMI_BLITTER); /* Amiga Blitter */ 73 AMIGAHW_DECLARE(AMBER_FF); /* Amber Flicker Fixer */ 74 /* sound hardware */ 75 AMIGAHW_DECLARE(AMI_AUDIO); /* Amiga Audio */ 76 /* disk storage interfaces */ 77 AMIGAHW_DECLARE(AMI_FLOPPY); /* Amiga Floppy */ 78 AMIGAHW_DECLARE(A3000_SCSI); /* SCSI (wd33c93, A3000 alike) */ 79 AMIGAHW_DECLARE(A4000_SCSI); /* SCSI (ncr53c710, A4000T alike) */ 80 AMIGAHW_DECLARE(A1200_IDE); /* IDE (A1200 alike) */ 81 AMIGAHW_DECLARE(A4000_IDE); /* IDE (A4000 alike) */ 82 AMIGAHW_DECLARE(CD_ROM); /* CD ROM drive */ 83 /* other I/O hardware */ 84 AMIGAHW_DECLARE(AMI_KEYBOARD); /* Amiga Keyboard */ 85 AMIGAHW_DECLARE(AMI_MOUSE); /* Amiga Mouse */ 86 AMIGAHW_DECLARE(AMI_SERIAL); /* Amiga Serial */ 87 AMIGAHW_DECLARE(AMI_PARALLEL); /* Amiga Parallel */ 88 /* real time clocks */ 89 AMIGAHW_DECLARE(A2000_CLK); /* Hardware Clock (A2000 alike) */ 90 AMIGAHW_DECLARE(A3000_CLK); /* Hardware Clock (A3000 alike) */ 91 /* supporting hardware */ 92 AMIGAHW_DECLARE(CHIP_RAM); /* Chip RAM */ 93 AMIGAHW_DECLARE(PAULA); /* Paula (8364) */ 94 AMIGAHW_DECLARE(DENISE); /* Denise (8362) */ 95 AMIGAHW_DECLARE(DENISE_HR); /* Denise (8373) */ 96 AMIGAHW_DECLARE(LISA); /* Lisa (8375) */ 97 AMIGAHW_DECLARE(AGNUS_PAL); /* Normal/Fat PAL Agnus (8367/8371) */ 98 AMIGAHW_DECLARE(AGNUS_NTSC); /* Normal/Fat NTSC Agnus (8361/8370) */ 99 AMIGAHW_DECLARE(AGNUS_HR_PAL); /* Fat Hires PAL Agnus (8372) */ 100 AMIGAHW_DECLARE(AGNUS_HR_NTSC); /* Fat Hires NTSC Agnus (8372) */ 101 AMIGAHW_DECLARE(ALICE_PAL); /* PAL Alice (8374) */ 102 AMIGAHW_DECLARE(ALICE_NTSC); /* NTSC Alice (8374) */ 103 AMIGAHW_DECLARE(MAGIC_REKICK); /* A3000 Magic Hard Rekick */ 104 AMIGAHW_DECLARE(PCMCIA); /* PCMCIA Slot */ 105 AMIGAHW_DECLARE(GG2_ISA); /* GG2 Zorro2ISA Bridge */ 106 AMIGAHW_DECLARE(ZORRO); /* Zorro AutoConfig */ 107 AMIGAHW_DECLARE(ZORRO3); /* Zorro III */ 108}; 109 110extern struct amiga_hw_present amiga_hw_present; 111 112struct CUSTOM { 113 unsigned short bltddat; 114 unsigned short dmaconr; 115 unsigned short vposr; 116 unsigned short vhposr; 117 unsigned short dskdatr; 118 unsigned short joy0dat; 119 unsigned short joy1dat; 120 unsigned short clxdat; 121 unsigned short adkconr; 122 unsigned short pot0dat; 123 unsigned short pot1dat; 124 unsigned short potgor; 125 unsigned short serdatr; 126 unsigned short dskbytr; 127 unsigned short intenar; 128 unsigned short intreqr; 129 unsigned char *dskptr; 130 unsigned short dsklen; 131 unsigned short dskdat; 132 unsigned short refptr; 133 unsigned short vposw; 134 unsigned short vhposw; 135 unsigned short copcon; 136 unsigned short serdat; 137 unsigned short serper; 138 unsigned short potgo; 139 unsigned short joytest; 140 unsigned short strequ; 141 unsigned short strvbl; 142 unsigned short strhor; 143 unsigned short strlong; 144 unsigned short bltcon0; 145 unsigned short bltcon1; 146 unsigned short bltafwm; 147 unsigned short bltalwm; 148 unsigned char *bltcpt; 149 unsigned char *bltbpt; 150 unsigned char *bltapt; 151 unsigned char *bltdpt; 152 unsigned short bltsize; 153 unsigned char pad2d; 154 unsigned char bltcon0l; 155 unsigned short bltsizv; 156 unsigned short bltsizh; 157 unsigned short bltcmod; 158 unsigned short bltbmod; 159 unsigned short bltamod; 160 unsigned short bltdmod; 161 unsigned short spare2[4]; 162 unsigned short bltcdat; 163 unsigned short bltbdat; 164 unsigned short bltadat; 165 unsigned short spare3[3]; 166 unsigned short deniseid; 167 unsigned short dsksync; 168 unsigned short *cop1lc; 169 unsigned short *cop2lc; 170 unsigned short copjmp1; 171 unsigned short copjmp2; 172 unsigned short copins; 173 unsigned short diwstrt; 174 unsigned short diwstop; 175 unsigned short ddfstrt; 176 unsigned short ddfstop; 177 unsigned short dmacon; 178 unsigned short clxcon; 179 unsigned short intena; 180 unsigned short intreq; 181 unsigned short adkcon; 182 struct { 183 unsigned short *audlc; 184 unsigned short audlen; 185 unsigned short audper; 186 unsigned short audvol; 187 unsigned short auddat; 188 unsigned short audspare[2]; 189 } aud[4]; 190 unsigned char *bplpt[8]; 191 unsigned short bplcon0; 192 unsigned short bplcon1; 193 unsigned short bplcon2; 194 unsigned short bplcon3; 195 unsigned short bpl1mod; 196 unsigned short bpl2mod; 197 unsigned short bplcon4; 198 unsigned short clxcon2; 199 unsigned short bpldat[8]; 200 unsigned char *sprpt[8]; 201 struct { 202 unsigned short pos; 203 unsigned short ctl; 204 unsigned short dataa; 205 unsigned short datab; 206 } spr[8]; 207 unsigned short color[32]; 208 unsigned short htotal; 209 unsigned short hsstop; 210 unsigned short hbstrt; 211 unsigned short hbstop; 212 unsigned short vtotal; 213 unsigned short vsstop; 214 unsigned short vbstrt; 215 unsigned short vbstop; 216 unsigned short sprhstrt; 217 unsigned short sprhstop; 218 unsigned short bplhstrt; 219 unsigned short bplhstop; 220 unsigned short hhposw; 221 unsigned short hhposr; 222 unsigned short beamcon0; 223 unsigned short hsstrt; 224 unsigned short vsstrt; 225 unsigned short hcenter; 226 unsigned short diwhigh; 227 unsigned short spare4[11]; 228 unsigned short fmode; 229}; 230 231/* 232 * DMA register bits 233 */ 234#define DMAF_SETCLR (0x8000) 235#define DMAF_AUD0 (0x0001) 236#define DMAF_AUD1 (0x0002) 237#define DMAF_AUD2 (0x0004) 238#define DMAF_AUD3 (0x0008) 239#define DMAF_DISK (0x0010) 240#define DMAF_SPRITE (0x0020) 241#define DMAF_BLITTER (0x0040) 242#define DMAF_COPPER (0x0080) 243#define DMAF_RASTER (0x0100) 244#define DMAF_MASTER (0x0200) 245#define DMAF_BLITHOG (0x0400) 246#define DMAF_BLTNZERO (0x2000) 247#define DMAF_BLTDONE (0x4000) 248#define DMAF_ALL (0x01FF) 249 250struct CIA { 251 unsigned char pra; char pad0[0xff]; 252 unsigned char prb; char pad1[0xff]; 253 unsigned char ddra; char pad2[0xff]; 254 unsigned char ddrb; char pad3[0xff]; 255 unsigned char talo; char pad4[0xff]; 256 unsigned char tahi; char pad5[0xff]; 257 unsigned char tblo; char pad6[0xff]; 258 unsigned char tbhi; char pad7[0xff]; 259 unsigned char todlo; char pad8[0xff]; 260 unsigned char todmid; char pad9[0xff]; 261 unsigned char todhi; char pada[0x1ff]; 262 unsigned char sdr; char padb[0xff]; 263 unsigned char icr; char padc[0xff]; 264 unsigned char cra; char padd[0xff]; 265 unsigned char crb; char pade[0xff]; 266}; 267 268#define zTwoBase (0x80000000) 269#define ZTWO_PADDR(x) (((unsigned long)(x))-zTwoBase) 270#define ZTWO_VADDR(x) (((unsigned long)(x))+zTwoBase) 271 272#define CUSTOM_PHYSADDR (0xdff000) 273#define amiga_custom ((*(volatile struct CUSTOM *)(zTwoBase+CUSTOM_PHYSADDR))) 274 275#define CIAA_PHYSADDR (0xbfe001) 276#define CIAB_PHYSADDR (0xbfd000) 277#define ciaa ((*(volatile struct CIA *)(zTwoBase + CIAA_PHYSADDR))) 278#define ciab ((*(volatile struct CIA *)(zTwoBase + CIAB_PHYSADDR))) 279 280#define CHIP_PHYSADDR (0x000000) 281 282void amiga_chip_init (void); 283void *amiga_chip_alloc(unsigned long size, const char *name); 284void *amiga_chip_alloc_res(unsigned long size, struct resource *res); 285void amiga_chip_free(void *ptr); 286unsigned long amiga_chip_avail( void ); /*MILAN*/ 287extern volatile unsigned short amiga_audio_min_period; 288 289static inline void amifb_video_off(void) 290{ 291 if (amiga_chipset == CS_ECS || amiga_chipset == CS_AGA) { 292 /* program Denise/Lisa for a higher maximum play rate */ 293 amiga_custom.htotal = 113; /* 31 kHz */ 294 amiga_custom.vtotal = 223; /* 70 Hz */ 295 amiga_custom.beamcon0 = 0x4390; /* HARDDIS, VAR{BEAM,VSY,HSY,CSY}EN */ 296 /* suspend the monitor */ 297 amiga_custom.hsstrt = amiga_custom.hsstop = 116; 298 amiga_custom.vsstrt = amiga_custom.vsstop = 226; 299 amiga_audio_min_period = 57; 300 } 301} 302 303struct tod3000 { 304 unsigned int :28, second2:4; /* lower digit */ 305 unsigned int :28, second1:4; /* upper digit */ 306 unsigned int :28, minute2:4; /* lower digit */ 307 unsigned int :28, minute1:4; /* upper digit */ 308 unsigned int :28, hour2:4; /* lower digit */ 309 unsigned int :28, hour1:4; /* upper digit */ 310 unsigned int :28, weekday:4; 311 unsigned int :28, day2:4; /* lower digit */ 312 unsigned int :28, day1:4; /* upper digit */ 313 unsigned int :28, month2:4; /* lower digit */ 314 unsigned int :28, month1:4; /* upper digit */ 315 unsigned int :28, year2:4; /* lower digit */ 316 unsigned int :28, year1:4; /* upper digit */ 317 unsigned int :28, cntrl1:4; /* control-byte 1 */ 318 unsigned int :28, cntrl2:4; /* control-byte 2 */ 319 unsigned int :28, cntrl3:4; /* control-byte 3 */ 320}; 321#define TOD3000_CNTRL1_HOLD 0 322#define TOD3000_CNTRL1_FREE 9 323#define tod_3000 ((*(volatile struct tod3000 *)(zTwoBase+0xDC0000))) 324 325struct tod2000 { 326 unsigned int :28, second2:4; /* lower digit */ 327 unsigned int :28, second1:4; /* upper digit */ 328 unsigned int :28, minute2:4; /* lower digit */ 329 unsigned int :28, minute1:4; /* upper digit */ 330 unsigned int :28, hour2:4; /* lower digit */ 331 unsigned int :28, hour1:4; /* upper digit */ 332 unsigned int :28, day2:4; /* lower digit */ 333 unsigned int :28, day1:4; /* upper digit */ 334 unsigned int :28, month2:4; /* lower digit */ 335 unsigned int :28, month1:4; /* upper digit */ 336 unsigned int :28, year2:4; /* lower digit */ 337 unsigned int :28, year1:4; /* upper digit */ 338 unsigned int :28, weekday:4; 339 unsigned int :28, cntrl1:4; /* control-byte 1 */ 340 unsigned int :28, cntrl2:4; /* control-byte 2 */ 341 unsigned int :28, cntrl3:4; /* control-byte 3 */ 342}; 343 344#define TOD2000_CNTRL1_HOLD (1<<0) 345#define TOD2000_CNTRL1_BUSY (1<<1) 346#define TOD2000_CNTRL3_24HMODE (1<<2) 347#define TOD2000_HOUR1_PM (1<<2) 348#define tod_2000 ((*(volatile struct tod2000 *)(zTwoBase+0xDC0000))) 349 350#endif /* _M68K_AMIGAHW_H */ 351