arch/m68k/include/asm/mac_oss.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *      OSS
   4  *
   5  *      This is used in place of VIA2 on the IIfx.
   6  */
   7
   8 #define OSS_BASE        (0x50f1a000)
   9
  10 /*
  11  * Interrupt level offsets for mac_oss->irq_level
  12  */
  13
  14 #define OSS_NUBUS0      0
  15 #define OSS_NUBUS1      1
  16 #define OSS_NUBUS2      2
  17 #define OSS_NUBUS3      3
  18 #define OSS_NUBUS4      4
  19 #define OSS_NUBUS5      5
  20 #define OSS_IOPISM      6
  21 #define OSS_IOPSCC      7
  22 #define OSS_SOUND       8
  23 #define OSS_SCSI        9
  24 #define OSS_60HZ        10
  25 #define OSS_VIA1        11
  26 #define OSS_UNUSED1     12
  27 #define OSS_UNUSED2     13
  28 #define OSS_PARITY      14
  29 #define OSS_UNUSED3     15
  30
  31 #define OSS_NUM_SOURCES 16
  32
  33 /*
  34  * Pending interrupt bits in mac_oss->irq_pending
  35  */
  36
  37 #define OSS_IP_NUBUS0   0x0001
  38 #define OSS_IP_NUBUS1   0x0002
  39 #define OSS_IP_NUBUS2   0x0004
  40 #define OSS_IP_NUBUS3   0x0008
  41 #define OSS_IP_NUBUS4   0x0010
  42 #define OSS_IP_NUBUS5   0x0020
  43 #define OSS_IP_IOPISM   0x0040
  44 #define OSS_IP_IOPSCC   0x0080
  45 #define OSS_IP_SOUND    0x0100
  46 #define OSS_IP_SCSI     0x0200
  47 #define OSS_IP_60HZ     0x0400
  48 #define OSS_IP_VIA1     0x0800
  49 #define OSS_IP_UNUSED1  0x1000
  50 #define OSS_IP_UNUSED2  0x2000
  51 #define OSS_IP_PARITY   0x4000
  52 #define OSS_IP_UNUSED3  0x8000
  53
  54 #define OSS_IP_NUBUS (OSS_IP_NUBUS0|OSS_IP_NUBUS1|OSS_IP_NUBUS2|OSS_IP_NUBUS3|OSS_IP_NUBUS4|OSS_IP_NUBUS5)
  55
  56 /*
  57  * Rom Control Register
  58  */
  59
  60 #define OSS_POWEROFF    0x80
  61
  62 #ifndef __ASSEMBLY__
  63
  64 struct mac_oss {
  65     __u8  irq_level[0x10];      /* [0x000-0x00f] Interrupt levels */
  66     __u8  padding0[0x1F2];      /* [0x010-0x201] IO space filler */
  67     __u16 irq_pending;          /* [0x202-0x203] pending interrupts bits */
  68     __u8  rom_ctrl;             /* [0x204-0x204] ROM cntl reg (for poweroff) */
  69     __u8  padding1[0x2];        /* [0x205-0x206] currently unused by A/UX */
  70     __u8  ack_60hz;             /* [0x207-0x207] 60 Hz ack. */
  71 };
  72
  73 extern volatile struct mac_oss *oss;
  74 extern int oss_present;
  75
  76 extern void oss_register_interrupts(void);
  77 extern void oss_irq_enable(int);
  78 extern void oss_irq_disable(int);
  79
  80 #endif /* __ASSEMBLY__ */