Home | History | Annotate | Line # | Download | only in dev
fdvar.h revision 1.1 
      1  1.1  pk #define	FDC_BSIZE	512
      2  1.1  pk #define	FDC_MAXIOSIZE	NBPG	/* XXX should be MAXBSIZE */
      3  1.1  pk 
      4  1.1  pk #define FDC_NSTATUS	10
      5  1.1  pk 
      6  1.1  pk #if !defined(LOCORE)
      7  1.1  pk struct fdcio {
      8  1.1  pk 	/*
      9  1.1  pk 	 * 82072 (sun4c) and 82077 (sun4m) controllers have different
     10  1.1  pk 	 * register layout; so we cache some here.
     11  1.1  pk 	 */
     12  1.1  pk 	volatile u_int8_t	*fdcio_reg_msr;
     13  1.1  pk 	volatile u_int8_t	*fdcio_reg_fifo;
     14  1.1  pk 	volatile u_int8_t	*fdcio_reg_dor;	/* 82077 only */
     15  1.1  pk 
     16  1.1  pk 	/*
     17  1.1  pk 	 * Interrupt state.
     18  1.1  pk 	 */
     19  1.1  pk 	int	fdcio_istate;
     20  1.1  pk 
     21  1.1  pk 	/*
     22  1.1  pk 	 * IO state.
     23  1.1  pk 	 */
     24  1.1  pk 	char	*fdcio_data;		/* pseudo-dma data */
     25  1.1  pk 	int	fdcio_tc;		/* pseudo-dma Terminal Count */
     26  1.1  pk 	u_char	fdcio_status[FDC_NSTATUS];	/* copy of registers */
     27  1.1  pk 	int	fdcio_nstat;		/* # of valid status bytes */
     28  1.1  pk };
     29  1.1  pk #endif /* LOCORE */
     30  1.1  pk 
     31  1.1  pk /* istate values */
     32  1.1  pk #define ISTATE_IDLE		0	/* No HW interrupt expected */
     33  1.1  pk #define ISTATE_SPURIOUS		1	/* Spurious HW interrupt detected */
     34  1.1  pk #define ISTATE_SENSEI		2	/* Do SENSEI on next HW interrupt */
     35  1.1  pk #define ISTATE_DMA		3	/* Pseudo-DMA in progress */
     36  1.1  pk 
     37  1.1  pk #define FDIOCEJECT	_IO('f', 24)
     38  1.1  pk 
     39