38 строки
1.1 KiB
C
38 строки
1.1 KiB
C
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#ifndef _ASM_ATARI_ACSI_H
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#define _ASM_ATARI_ACSI_H
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/* Functions exported by drivers/block/acsi.c */
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void acsi_delay_start( void );
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void acsi_delay_end( long usec );
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int acsi_wait_for_IRQ( unsigned timeout );
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int acsi_wait_for_noIRQ( unsigned timeout );
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int acsicmd_nodma( const char *cmd, int enable);
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int acsi_getstatus( void );
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int acsi_extstatus( char *buffer, int cnt );
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void acsi_end_extstatus( void );
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int acsi_extcmd( unsigned char *buffer, int cnt );
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/* The ACSI buffer is guarantueed to reside in ST-RAM and may be used by other
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* drivers that work on the ACSI bus, too. It's data are valid only as long as
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* the ST-DMA is locked. */
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extern char *acsi_buffer;
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extern unsigned long phys_acsi_buffer;
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/* Utility macros */
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/* Send one data byte over the bus and set mode for next operation
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* with one move.l -- Atari recommends this...
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*/
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#define DMA_LONG_WRITE(data,mode) \
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do { \
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*((unsigned long *)&dma_wd.fdc_acces_seccount) = \
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((data)<<16) | (mode); \
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} while(0)
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#define ENABLE_IRQ() atari_turnon_irq( IRQ_MFP_ACSI )
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#define DISABLE_IRQ() atari_turnoff_irq( IRQ_MFP_ACSI )
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#endif /* _ASM_ATARI_ACSI_H */
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