diff options
Diffstat (limited to 'include/asm-m68k/atari_acsi.h')
| -rw-r--r-- | include/asm-m68k/atari_acsi.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/asm-m68k/atari_acsi.h b/include/asm-m68k/atari_acsi.h new file mode 100644 index 00000000000..10fea68f191 --- /dev/null +++ b/include/asm-m68k/atari_acsi.h @@ -0,0 +1,37 @@ +#ifndef _ASM_ATARI_ACSI_H +#define _ASM_ATARI_ACSI_H + +/* Functions exported by drivers/block/acsi.c */ + +void acsi_delay_start( void ); +void acsi_delay_end( long usec ); +int acsi_wait_for_IRQ( unsigned timeout ); +int acsi_wait_for_noIRQ( unsigned timeout ); +int acsicmd_nodma( const char *cmd, int enable); +int acsi_getstatus( void ); +int acsi_extstatus( char *buffer, int cnt ); +void acsi_end_extstatus( void ); +int acsi_extcmd( unsigned char *buffer, int cnt ); + +/* The ACSI buffer is guarantueed to reside in ST-RAM and may be used by other + * drivers that work on the ACSI bus, too. It's data are valid only as long as + * the ST-DMA is locked. */ +extern char *acsi_buffer; +extern unsigned long phys_acsi_buffer; + +/* Utility macros */ + +/* Send one data byte over the bus and set mode for next operation + * with one move.l -- Atari recommends this... + */ + +#define DMA_LONG_WRITE(data,mode) \ + do { \ + *((unsigned long *)&dma_wd.fdc_acces_seccount) = \ + ((data)<<16) | (mode); \ + } while(0) + +#define ENABLE_IRQ() atari_turnon_irq( IRQ_MFP_ACSI ) +#define DISABLE_IRQ() atari_turnoff_irq( IRQ_MFP_ACSI ) + +#endif /* _ASM_ATARI_ACSI_H */ |