include/asm-m68k/machw.h

   1 /*
   2 ** linux/machw.h -- This header defines some macros and pointers for
   3 **                    the various Macintosh custom hardware registers.
   4 **
   5 ** Copyright 1997 by Michael Schmitz
   6 **
   7 ** This file is subject to the terms and conditions of the GNU General Public
   8 ** License.  See the file COPYING in the main directory of this archive
   9 ** for more details.
  10 **
  11 */
  12
  13 #ifndef _ASM_MACHW_H_
  14 #define _ASM_MACHW_H_
  15
  16 #include <linux/types.h>
  17
  18 /* Mac SCSI Controller 5380 */
  19
  20 #define MAC_5380_BAS    (0x50F10000) /* This is definitely wrong!! */
  21 struct MAC_5380 {
  22         u_char  scsi_data;
  23         u_char  char_dummy1;
  24         u_char  scsi_icr;
  25         u_char  char_dummy2;
  26         u_char  scsi_mode;
  27         u_char  char_dummy3;
  28         u_char  scsi_tcr;
  29         u_char  char_dummy4;
  30         u_char  scsi_idstat;
  31         u_char  char_dummy5;
  32         u_char  scsi_dmastat;
  33         u_char  char_dummy6;
  34         u_char  scsi_targrcv;
  35         u_char  char_dummy7;
  36         u_char  scsi_inircv;
  37 };
  38 #define mac_scsi       ((*(volatile struct MAC_5380 *)MAC_5380_BAS))
  39
  40 /*
  41 ** SCC Z8530
  42 */
  43
  44 #define MAC_SCC_BAS (0x50F04000)
  45 struct MAC_SCC
  46  {
  47   u_char cha_a_ctrl;
  48   u_char char_dummy1;
  49   u_char cha_a_data;
  50   u_char char_dummy2;
  51   u_char cha_b_ctrl;
  52   u_char char_dummy3;
  53   u_char cha_b_data;
  54  };
  55 # define mac_scc ((*(volatile struct SCC*)MAC_SCC_BAS))
  56
  57 /*
  58 ** VIA 6522
  59 */
  60
  61 #define VIA1_BAS        (0x50F00000)
  62 #define VIA2_BAS        (0x50F02000)
  63 #define VIA2_BAS_IIci   (0x50F26000)
  64 struct VIA
  65  {
  66   u_char buf_b;
  67   u_char dummy1[0x199];
  68   u_char buf_a;
  69   u_char dummy2[0x199];
  70   u_char dir_b;
  71   u_char dummy3[0x199];
  72   u_char dir_a;
  73   u_char dummy4[0x199];
  74   u_char timer1_cl;
  75   u_char dummy5[0x199];
  76   u_char timer1_ch;
  77   u_char dummy6[0x199];
  78   u_char timer1_ll;
  79   u_char dummy7[0x199];
  80   u_char timer1_lh;
  81   u_char dummy8[0x199];
  82   u_char timer2_cl;
  83   u_char dummy9[0x199];
  84   u_char timer2_ch;
  85   u_char dummy10[0x199];
  86   u_char sr;
  87   u_char dummy11[0x199];
  88   u_char acr;
  89   u_char dummy12[0x199];
  90   u_char pcr;
  91   u_char dummy13[0x199];
  92   u_char int_fl;
  93   u_char dummy14[0x199];
  94   u_char int_en;
  95   u_char dummy15[0x199];
  96   u_char anr;
  97   u_char dummy16[0x199];
  98  };
  99
 100 # define via_1         ((*(volatile struct VIA *)VIA1_BAS))
 101 # define via_2         ((*(volatile struct VIA *)VIA2_BAS))
 102 # define via1_regp     ((volatile unsigned char *)VIA1_BAS)
 103
 104 /*
 105  * OSS/RBV base address
 106  */
 107
 108 #define OSS_BAS         0x50f1a000
 109 #define PSC_BAS         0x50f31000
 110
 111 /* move to oss.h?? */
 112 #define nIFR    0x203
 113 #define oIFR    0x202
 114
 115
 116 /* hardware stuff */
 117
 118 #define MACHW_DECLARE(name)    unsigned name : 1
 119 #define MACHW_SET(name)                (mac_hw_present.name = 1)
 120 #define MACHW_PRESENT(name)    (mac_hw_present.name)
 121
 122 struct {
 123   /* video hardware */
 124   /* sound hardware */
 125   /* disk storage interfaces */
 126   MACHW_DECLARE(MAC_SCSI_80);     /* Directly mapped NCR5380 */
 127   MACHW_DECLARE(MAC_SCSI_96);     /* 53c9[46] */
 128   MACHW_DECLARE(MAC_SCSI_96_2);   /* 2nd 53c9[46] Q900 and Q950 */
 129   MACHW_DECLARE(IDE);             /* IDE Interface */
 130   /* other I/O hardware */
 131   MACHW_DECLARE(SCC);             /* Serial Communications Contr. */
 132   /* DMA */
 133   MACHW_DECLARE(SCSI_DMA);        /* DMA for the NCR5380 */
 134   /* real time clocks */
 135   MACHW_DECLARE(RTC_CLK);         /* clock chip */
 136   /* supporting hardware */
 137   MACHW_DECLARE(VIA1);            /* Versatile Interface Ad. 1 */
 138   MACHW_DECLARE(VIA2);            /* Versatile Interface Ad. 2 */
 139   MACHW_DECLARE(RBV);             /* Versatile Interface Ad. 2+ */
 140   /* NUBUS */
 141   MACHW_DECLARE(NUBUS);           /* NUBUS */
 142 } mac_hw_present;
 143
 144 /* extern struct mac_hw_present mac_hw_present; */
 145
 146 #endif /* linux/machw.h */