sys/dev/ppbus/ppbus_var.h

   1 /* $NetBSD: ppbus_var.h,v 1.3.4.4 2005/03/04 16:49:52 skrll Exp $ */
   2
   3 #ifndef __PPBUS_VAR_H
   4 #define __PPBUS_VAR_H
   5
   6 /* PPBUS mode masks. */
   7 #define PPBUS_COMPATIBLE        0x01    /* Centronics compatible mode */
   8 #define PPBUS_NIBBLE            0x02    /* reverse 4 bit mode */
   9 #define PPBUS_PS2               0x04    /* PS/2 byte mode */
  10 #define PPBUS_EPP               0x08    /* EPP mode, 32 bit */
  11 #define PPBUS_ECP               0x10    /* ECP mode */
  12 #define PPBUS_FAST              0x20    /* Fast Centronics mode */
  13 /* mode aliases */
  14 #define PPBUS_SPP               PPBUS_NIBBLE | PPBUS_PS2 /* Won't work! */
  15 #define PPBUS_BYTE              PPBUS_PS2
  16 #define PPBUS_MASK              0x3f
  17 #define PPBUS_OPTIONS_MASK      0xc0
  18 /* Useful macros for this field */
  19 #define PPBUS_IS_EPP(mode) ((mode) & PPBUS_EPP)
  20 #define PPBUS_IN_EPP_MODE(bus) (PPBUS_IS_EPP(ppbus_get_mode(bus)))
  21 #define PPBUS_IN_NIBBLE_MODE(bus) (ppbus_get_mode(bus) & PPBUS_NIBBLE)
  22 #define PPBUS_IN_PS2_MODE(bus) (ppbus_get_mode(bus) & PPBUS_PS2)
  23
  24 /* PPBUS capabilities */
  25 #define PPBUS_HAS_INTR          0x01    /* Interrupt available */
  26 #define PPBUS_HAS_DMA           0x02    /* DMA available */
  27 #define PPBUS_HAS_FIFO          0x04    /* FIFO available */
  28 #define PPBUS_HAS_PS2           0x08    /* PS2 mode capable */
  29 #define PPBUS_HAS_ECP           0x10    /* ECP mode available */
  30 #define PPBUS_HAS_EPP           0x20    /* EPP mode available */
  31
  32 /* IEEE flag in soft config */
  33 #define PPBUS_DISABLE_IEEE      0x00
  34 #define PPBUS_ENABLE_IEEE       0x01
  35
  36 /* List of IVARS available to ppbus device drivers */
  37 /* #define PPBUS_IVAR_MODE 0 */
  38 #define PPBUS_IVAR_DMA          1
  39 #define PPBUS_IVAR_INTR         2
  40 #define PPBUS_IVAR_EPP_PROTO    3
  41 #define PPBUS_IVAR_IEEE         4
  42 /* Needed by callback's implemented using callout */
  43 #define PPBUS_IVAR_IRQSTAT      5
  44 #define PPBUS_IVAR_DMASTAT      6
  45 /* other fields are reserved to the ppbus internals */
  46
  47 /* EPP protocol versions */
  48 #define PPBUS_EPP_1_9           0x0                     /* default */
  49 #define PPBUS_EPP_1_7           0x1
  50
  51 /* Parallel Port Bus sleep/wakeup queue. */
  52 #define PPBUSPRI                (PZERO+8)
  53
  54 #endif /* __PPBUS_VAR_H */