linux/arch/m68k/include/asm/amigahw.h
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   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(ZORRO);             /* Zorro AutoConfig */
 106    AMIGAHW_DECLARE(ZORRO3);            /* Zorro III */
 107};
 108
 109extern struct amiga_hw_present amiga_hw_present;
 110
 111struct CUSTOM {
 112    unsigned short bltddat;
 113    unsigned short dmaconr;
 114    unsigned short vposr;
 115    unsigned short vhposr;
 116    unsigned short dskdatr;
 117    unsigned short joy0dat;
 118    unsigned short joy1dat;
 119    unsigned short clxdat;
 120    unsigned short adkconr;
 121    unsigned short pot0dat;
 122    unsigned short pot1dat;
 123    unsigned short potgor;
 124    unsigned short serdatr;
 125    unsigned short dskbytr;
 126    unsigned short intenar;
 127    unsigned short intreqr;
 128    unsigned char  *dskptr;
 129    unsigned short dsklen;
 130    unsigned short dskdat;
 131    unsigned short refptr;
 132    unsigned short vposw;
 133    unsigned short vhposw;
 134    unsigned short copcon;
 135    unsigned short serdat;
 136    unsigned short serper;
 137    unsigned short potgo;
 138    unsigned short joytest;
 139    unsigned short strequ;
 140    unsigned short strvbl;
 141    unsigned short strhor;
 142    unsigned short strlong;
 143    unsigned short bltcon0;
 144    unsigned short bltcon1;
 145    unsigned short bltafwm;
 146    unsigned short bltalwm;
 147    unsigned char  *bltcpt;
 148    unsigned char  *bltbpt;
 149    unsigned char  *bltapt;
 150    unsigned char  *bltdpt;
 151    unsigned short bltsize;
 152    unsigned char  pad2d;
 153    unsigned char  bltcon0l;
 154    unsigned short bltsizv;
 155    unsigned short bltsizh;
 156    unsigned short bltcmod;
 157    unsigned short bltbmod;
 158    unsigned short bltamod;
 159    unsigned short bltdmod;
 160    unsigned short spare2[4];
 161    unsigned short bltcdat;
 162    unsigned short bltbdat;
 163    unsigned short bltadat;
 164    unsigned short spare3[3];
 165    unsigned short deniseid;
 166    unsigned short dsksync;
 167    unsigned short *cop1lc;
 168    unsigned short *cop2lc;
 169    unsigned short copjmp1;
 170    unsigned short copjmp2;
 171    unsigned short copins;
 172    unsigned short diwstrt;
 173    unsigned short diwstop;
 174    unsigned short ddfstrt;
 175    unsigned short ddfstop;
 176    unsigned short dmacon;
 177    unsigned short clxcon;
 178    unsigned short intena;
 179    unsigned short intreq;
 180    unsigned short adkcon;
 181    struct {
 182        unsigned short  *audlc;
 183        unsigned short audlen;
 184        unsigned short audper;
 185        unsigned short audvol;
 186        unsigned short auddat;
 187        unsigned short audspare[2];
 188    } aud[4];
 189    unsigned char  *bplpt[8];
 190    unsigned short bplcon0;
 191    unsigned short bplcon1;
 192    unsigned short bplcon2;
 193    unsigned short bplcon3;
 194    unsigned short bpl1mod;
 195    unsigned short bpl2mod;
 196    unsigned short bplcon4;
 197    unsigned short clxcon2;
 198    unsigned short bpldat[8];
 199    unsigned char  *sprpt[8];
 200    struct {
 201        unsigned short pos;
 202        unsigned short ctl;
 203        unsigned short dataa;
 204        unsigned short datab;
 205    } spr[8];
 206    unsigned short color[32];
 207    unsigned short htotal;
 208    unsigned short hsstop;
 209    unsigned short hbstrt;
 210    unsigned short hbstop;
 211    unsigned short vtotal;
 212    unsigned short vsstop;
 213    unsigned short vbstrt;
 214    unsigned short vbstop;
 215    unsigned short sprhstrt;
 216    unsigned short sprhstop;
 217    unsigned short bplhstrt;
 218    unsigned short bplhstop;
 219    unsigned short hhposw;
 220    unsigned short hhposr;
 221    unsigned short beamcon0;
 222    unsigned short hsstrt;
 223    unsigned short vsstrt;
 224    unsigned short hcenter;
 225    unsigned short diwhigh;
 226    unsigned short spare4[11];
 227    unsigned short fmode;
 228};
 229
 230/*
 231 * DMA register bits
 232 */
 233#define DMAF_SETCLR             (0x8000)
 234#define DMAF_AUD0               (0x0001)
 235#define DMAF_AUD1               (0x0002)
 236#define DMAF_AUD2               (0x0004)
 237#define DMAF_AUD3               (0x0008)
 238#define DMAF_DISK               (0x0010)
 239#define DMAF_SPRITE             (0x0020)
 240#define DMAF_BLITTER            (0x0040)
 241#define DMAF_COPPER             (0x0080)
 242#define DMAF_RASTER             (0x0100)
 243#define DMAF_MASTER             (0x0200)
 244#define DMAF_BLITHOG            (0x0400)
 245#define DMAF_BLTNZERO           (0x2000)
 246#define DMAF_BLTDONE            (0x4000)
 247#define DMAF_ALL                (0x01FF)
 248
 249struct CIA {
 250    unsigned char pra;          char pad0[0xff];
 251    unsigned char prb;          char pad1[0xff];
 252    unsigned char ddra;         char pad2[0xff];
 253    unsigned char ddrb;         char pad3[0xff];
 254    unsigned char talo;         char pad4[0xff];
 255    unsigned char tahi;         char pad5[0xff];
 256    unsigned char tblo;         char pad6[0xff];
 257    unsigned char tbhi;         char pad7[0xff];
 258    unsigned char todlo;        char pad8[0xff];
 259    unsigned char todmid;       char pad9[0xff];
 260    unsigned char todhi;        char pada[0x1ff];
 261    unsigned char sdr;          char padb[0xff];
 262    unsigned char icr;          char padc[0xff];
 263    unsigned char cra;          char padd[0xff];
 264    unsigned char crb;          char pade[0xff];
 265};
 266
 267#define zTwoBase (0x80000000)
 268#define ZTWO_PADDR(x) (((unsigned long)(x))-zTwoBase)
 269#define ZTWO_VADDR(x) (((unsigned long)(x))+zTwoBase)
 270
 271#define CUSTOM_PHYSADDR     (0xdff000)
 272#define amiga_custom ((*(volatile struct CUSTOM *)(zTwoBase+CUSTOM_PHYSADDR)))
 273
 274#define CIAA_PHYSADDR     (0xbfe001)
 275#define CIAB_PHYSADDR     (0xbfd000)
 276#define ciaa   ((*(volatile struct CIA *)(zTwoBase + CIAA_PHYSADDR)))
 277#define ciab   ((*(volatile struct CIA *)(zTwoBase + CIAB_PHYSADDR)))
 278
 279#define CHIP_PHYSADDR       (0x000000)
 280
 281void amiga_chip_init (void);
 282void *amiga_chip_alloc(unsigned long size, const char *name);
 283void *amiga_chip_alloc_res(unsigned long size, struct resource *res);
 284void amiga_chip_free(void *ptr);
 285unsigned long amiga_chip_avail( void ); /*MILAN*/
 286extern volatile unsigned short amiga_audio_min_period;
 287
 288static inline void amifb_video_off(void)
 289{
 290        if (amiga_chipset == CS_ECS || amiga_chipset == CS_AGA) {
 291                /* program Denise/Lisa for a higher maximum play rate */
 292                amiga_custom.htotal = 113;        /* 31 kHz */
 293                amiga_custom.vtotal = 223;        /* 70 Hz */
 294                amiga_custom.beamcon0 = 0x4390;   /* HARDDIS, VAR{BEAM,VSY,HSY,CSY}EN */
 295                /* suspend the monitor */
 296                amiga_custom.hsstrt = amiga_custom.hsstop = 116;
 297                amiga_custom.vsstrt = amiga_custom.vsstop = 226;
 298                amiga_audio_min_period = 57;
 299        }
 300}
 301
 302struct tod3000 {
 303  unsigned int  :28, second2:4; /* lower digit */
 304  unsigned int  :28, second1:4; /* upper digit */
 305  unsigned int  :28, minute2:4; /* lower digit */
 306  unsigned int  :28, minute1:4; /* upper digit */
 307  unsigned int  :28, hour2:4;   /* lower digit */
 308  unsigned int  :28, hour1:4;   /* upper digit */
 309  unsigned int  :28, weekday:4;
 310  unsigned int  :28, day2:4;    /* lower digit */
 311  unsigned int  :28, day1:4;    /* upper digit */
 312  unsigned int  :28, month2:4;  /* lower digit */
 313  unsigned int  :28, month1:4;  /* upper digit */
 314  unsigned int  :28, year2:4;   /* lower digit */
 315  unsigned int  :28, year1:4;   /* upper digit */
 316  unsigned int  :28, cntrl1:4;  /* control-byte 1 */
 317  unsigned int  :28, cntrl2:4;  /* control-byte 2 */
 318  unsigned int  :28, cntrl3:4;  /* control-byte 3 */
 319};
 320#define TOD3000_CNTRL1_HOLD     0
 321#define TOD3000_CNTRL1_FREE     9
 322#define tod_3000 ((*(volatile struct tod3000 *)(zTwoBase+0xDC0000)))
 323
 324struct tod2000 {
 325  unsigned int  :28, second2:4; /* lower digit */
 326  unsigned int  :28, second1:4; /* upper digit */
 327  unsigned int  :28, minute2:4; /* lower digit */
 328  unsigned int  :28, minute1:4; /* upper digit */
 329  unsigned int  :28, hour2:4;   /* lower digit */
 330  unsigned int  :28, hour1:4;   /* upper digit */
 331  unsigned int  :28, day2:4;    /* lower digit */
 332  unsigned int  :28, day1:4;    /* upper digit */
 333  unsigned int  :28, month2:4;  /* lower digit */
 334  unsigned int  :28, month1:4;  /* upper digit */
 335  unsigned int  :28, year2:4;   /* lower digit */
 336  unsigned int  :28, year1:4;   /* upper digit */
 337  unsigned int  :28, weekday:4;
 338  unsigned int  :28, cntrl1:4;  /* control-byte 1 */
 339  unsigned int  :28, cntrl2:4;  /* control-byte 2 */
 340  unsigned int  :28, cntrl3:4;  /* control-byte 3 */
 341};
 342
 343#define TOD2000_CNTRL1_HOLD     (1<<0)
 344#define TOD2000_CNTRL1_BUSY     (1<<1)
 345#define TOD2000_CNTRL3_24HMODE  (1<<2)
 346#define TOD2000_HOUR1_PM        (1<<2)
 347#define tod_2000 ((*(volatile struct tod2000 *)(zTwoBase+0xDC0000)))
 348
 349#endif /* _M68K_AMIGAHW_H */
 350
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