arch/m68k/include/asm/amigahw.h

   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
  47 extern 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
  59 extern unsigned long amiga_eclock;      /* 700 kHz E Peripheral Clock */
  60 extern unsigned long amiga_colorclock;  /* 3.5 MHz Color Clock */
  61 extern unsigned long amiga_chip_size;   /* Chip RAM Size (bytes) */
  62 extern 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
  69 struct 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
 110 extern struct amiga_hw_present amiga_hw_present;
 111
 112 struct 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
 250 struct 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
 282 void amiga_chip_init (void);
 283 void *amiga_chip_alloc(unsigned long size, const char *name);
 284 void *amiga_chip_alloc_res(unsigned long size, struct resource *res);
 285 void amiga_chip_free(void *ptr);
 286 unsigned long amiga_chip_avail( void ); /*MILAN*/
 287 extern volatile unsigned short amiga_audio_min_period;
 288
 289 static 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
 303 struct 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
 325 struct 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 */