1#ifndef _ASM_ATARI_ACSI_H 2#define _ASM_ATARI_ACSI_H 3 4/* Functions exported by drivers/block/acsi.c */ 5 6void acsi_delay_start( void ); 7void acsi_delay_end( long usec ); 8int acsi_wait_for_IRQ( unsigned timeout ); 9int acsi_wait_for_noIRQ( unsigned timeout ); 10int acsicmd_nodma( const char *cmd, int enable); 11int acsi_getstatus( void ); 12int acsi_extstatus( char *buffer, int cnt ); 13void acsi_end_extstatus( void ); 14int 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. */ 19extern char *acsi_buffer; 20extern 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 */ 38