include/asm-parisc/hil.h

   1 #ifndef _ASM_HIL_H
   2 #define _ASM_HIL_H
   3
   4 /*
   5  *      linux/asm-parisc/hil.h
   6  *
   7  *      (c) 1999 Matthew Wilcox
   8  */
   9
  10 extern unsigned long hil_base;  /* declared in drivers/gsc/hil.c */
  11 extern unsigned int hil_irq;
  12
  13 #define HILBASE                 hil_base /* 0xf0821000 (old) or 0xf0201000 (new) */
  14 #define HIL_DATA                0x800
  15 #define HIL_CMD                 0x801
  16
  17 #define HIL_IRQ                 hil_irq
  18
  19 #define hil_busy()              (gsc_readb(HILBASE + HIL_CMD) & HIL_BUSY)
  20 #define hil_data_available()    (gsc_readb(HILBASE + HIL_CMD) & HIL_DATA_RDY)
  21 #define hil_status()            (gsc_readb(HILBASE + HIL_CMD))
  22 #define hil_command(x)          do { gsc_writeb((x), HILBASE + HIL_CMD); } while (0)
  23 #define hil_read_data()         (gsc_readb(HILBASE + HIL_DATA))
  24 #define hil_write_data(x)       do { gsc_writeb((x), HILBASE + HIL_DATA); } while (0)
  25
  26 #endif