arch/m68k-amiga/boot/amiga_hwreg.h

   1 /*
   2     Copyright © 1995-2010, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: m68k-amiga hardware registers
   6     Lang: english
   7  */
   8
   9 #ifndef AMIGA_HWREG_H
  10 #define AMIGA_HWREG_H
  11
  12 #include <exec/types.h>
  13
  14 /** Interrupts */
  15 #define INTENAR                 0x1c
  16 #define INTREQR                 0x1e
  17 #define INTENA                  0x9a
  18 #define INTREQ                  0x9c
  19
  20 /** Screen/Serial Debug **/
  21
  22 #define SERPER_BASE_PAL         3546895
  23 #define SERPER_BASE_NTSC        3579545
  24 #define SERPER                  0x32
  25 #define   SERPER_BAUD(base, x)  ((((base + (x)/2))/(x)-1) & 0x7fff)     /* Baud rate */
  26 #define SERDATR                 0x18
  27 #define   SERDATR_OVRUN         (1 << 15)       /* Overrun */
  28 #define   SERDATR_RBF           (1 << 14)       /* Rx Buffer Full */
  29 #define   SERDATR_TBE           (1 << 13)       /* Tx Buffer Empty */
  30 #define   SERDATR_TSRE          (1 << 12)       /* Tx Shift Empty */
  31 #define   SERDATR_RXD           (1 << 11)       /* Rx Pin */
  32 #define   SERDATR_STP9          (1 <<  9)       /* Stop bit (if 9 data) */
  33 #define   SERDATR_STP8          (1 <<  8)       /* Stop bit (if 8 data) */
  34 #define   SERDATR_DB9_of(x)     ((x) & 0x1ff)   /* 9-bit data */
  35 #define   SERDATR_DB8_of(x)     ((x) & 0xff)    /* 8-bit data */
  36 #define ADKCON                  0x9e
  37 #define   ADKCON_SETCLR         (1 << 15)
  38 #define   ADKCON_UARTBRK        (1 << 11)       /* Force break */
  39 #define SERDAT                  0x30
  40 #define   SERDAT_STP9           (1 << 9)
  41 #define   SERDAT_STP8           (1 << 8)
  42 #define   SERDAT_DB9(x)         ((x) & 0x1ff)
  43 #define   SERDAT_DB8(x)         ((x) & 0xff)
  44
  45 #define BPLCON0                 0x100
  46 #define BPL1DAT                 0x110
  47 #define COLOR00                 0x180
  48
  49 static inline void reg_w(ULONG reg, UWORD val)
  50 {
  51         volatile UWORD *r = (void *)(0xdff000 + reg);
  52
  53         *r = val;
  54 }
  55
  56 static inline UWORD reg_r(ULONG reg)
  57 {
  58         volatile UWORD *r = (void *)(0xdff000 + reg);
  59
  60         return *r;
  61 }
  62
  63 #endif /* AMIGA_HWREG_H */