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 */
38
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