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