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Linux Cross Reference
Linux/include/asm-parisc/hil.h

Version: ~ [ 2.4.0 ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~ 
  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
 27
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