[linux.git] / include / asm-m68k / atari_acsi.h

#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 */
Commit	Line	Data
1da177e4 LT	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 */