include/asm-m68k/atari_acsi.h

   1 #ifndef _ASM_ATARI_ACSI_H
   2 #define _ASM_ATARI_ACSI_H
   3
   4 /* Functions exported by drivers/block/acsi.c */
   5
   6 void acsi_delay_start( void );
   7 void acsi_delay_end( long usec );
   8 int acsi_wait_for_IRQ( unsigned timeout );
   9 int acsi_wait_for_noIRQ( unsigned timeout );
  10 int acsicmd_nodma( const char *cmd, int enable);
  11 int acsi_getstatus( void );
  12 int acsi_extstatus( char *buffer, int cnt );
  13 void acsi_end_extstatus( void );
  14 int acsi_extcmd( unsigned char *buffer, int cnt );
  15
  16 /* The ACSI buffer is guarantueed to reside in ST-RAM and may be used by other
  17  * drivers that work on the ACSI bus, too. It's data are valid only as long as
  18  * the ST-DMA is locked. */
  19 extern char *acsi_buffer;
  20 extern unsigned long phys_acsi_buffer;
  21
  22 /* Utility macros */
  23
  24 /* Send one data byte over the bus and set mode for next operation
  25  * with one move.l -- Atari recommends this...
  26  */
  27
  28 #define DMA_LONG_WRITE(data,mode)                                                       \
  29     do {                                                                                                        \
  30                 *((unsigned long *)&dma_wd.fdc_acces_seccount) =        \
  31                         ((data)<<16) | (mode);                                                  \
  32         } while(0)
  33
  34 #define ENABLE_IRQ()    atari_turnon_irq( IRQ_MFP_ACSI )
  35 #define DISABLE_IRQ()   atari_turnoff_irq( IRQ_MFP_ACSI )
  36
  37 #endif /* _ASM_ATARI_ACSI_H */