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ofisavar.h revision 1.3 
      1 /*	$NetBSD: ofisavar.h,v 1.3 1998/06/30 00:09:36 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright 1998
      5  * Digital Equipment Corporation. All rights reserved.
      6  *
      7  * This software is furnished under license and may be used and
      8  * copied only in accordance with the following terms and conditions.
      9  * Subject to these conditions, you may download, copy, install,
     10  * use, modify and distribute this software in source and/or binary
     11  * form. No title or ownership is transferred hereby.
     12  *
     13  * 1) Any source code used, modified or distributed must reproduce
     14  *    and retain this copyright notice and list of conditions as
     15  *    they appear in the source file.
     16  *
     17  * 2) No right is granted to use any trade name, trademark, or logo of
     18  *    Digital Equipment Corporation. Neither the "Digital Equipment
     19  *    Corporation" name nor any trademark or logo of Digital Equipment
     20  *    Corporation may be used to endorse or promote products derived
     21  *    from this software without the prior written permission of
     22  *    Digital Equipment Corporation.
     23  *
     24  * 3) This software is provided "AS-IS" and any express or implied
     25  *    warranties, including but not limited to, any implied warranties
     26  *    of merchantability, fitness for a particular purpose, or
     27  *    non-infringement are disclaimed. In no event shall DIGITAL be
     28  *    liable for any damages whatsoever, and in particular, DIGITAL
     29  *    shall not be liable for special, indirect, consequential, or
     30  *    incidental damages or damages for lost profits, loss of
     31  *    revenue or loss of use, whether such damages arise in contract,
     32  *    negligence, tort, under statute, in equity, at law or otherwise,
     33  *    even if advised of the possibility of such damage.
     34  */
     35 
     36 #ifndef _DEV_OFISA_OFISAVAR_H_
     37 #define	_DEV_OFISA_OFISAVAR_H_
     38 
     39 struct ofisa_attach_args {
     40 	struct ofbus_attach_args oba;	/* common */
     41 
     42 	bus_space_tag_t	iot;		/* i/o space tag */
     43 	bus_space_tag_t	memt;		/* mem space tag */
     44 	bus_dma_tag_t	dmat;		/* DMA tag */
     45 	isa_chipset_tag_t ic;		/* chipset tag (for intr, etc.) */
     46 };
     47 
     48 struct ofisa_reg_desc {
     49 	int		type;		/* type.  XXX aliasing modifiers? */
     50 	bus_addr_t	addr;		/* base address. */
     51 	bus_size_t	len;		/* length. */
     52 };
     53 
     54 #define	OFISA_REG_TYPE_MEM	0	/* memory space */
     55 #define	OFISA_REG_TYPE_IO	1	/* I/O space */
     56 
     57 struct ofisa_intr_desc {
     58 	int		share;		/* sharing type: IST_*. */
     59 	int		irq;		/* IRQ. */
     60 };
     61 
     62 struct ofisa_dma_desc {
     63 	int		drq;		/* DMA request */
     64 	int		mode;		/* DMA mode */
     65 	int		width;		/* DMA width */
     66 	int		countwidth;	/* DMA count width */
     67 	int		busmaster;	/* boolean; is a busmaster */
     68 };
     69 
     70 #define	OFISA_DMA_MODE_COMPAT	0	/* compatibility mode */
     71 #define	OFISA_DMA_MODE_A	1	/* DMA A mode */
     72 #define	OFISA_DMA_MODE_B	2	/* DMA B mode */
     73 #define	OFISA_DMA_MODE_F	3	/* DMA F mode */
     74 #define	OFISA_DMA_MODE_C	4	/* DMA C mode */
     75 
     76 /*
     77  * Machine-dependent function/macro definitions.
     78  *
     79  * Machine-dependent code must implement at least:
     80  *
     81  *	int	ofisa_get_isabus_data(int phandle,
     82  *		    struct isabus_attach_args *iba);
     83  *
     84  *	int	ofisa_ignore_child(int pphandle, int cphandle);
     85  *
     86  * Individual ofisa attachments may want addition functions or
     87  * macros from this (or other) headers.  See those attachments'
     88  * files for more details.
     89  */
     90 #if (arm32 != 1)
     91 ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE.
     92 #endif
     93 #if arm32
     94 #include <arm32/ofw/ofisa_machdep.h>
     95 #endif
     96 
     97 int	ofisa_reg_count __P((int));
     98 int	ofisa_reg_get __P((int, struct ofisa_reg_desc *, int));
     99 void	ofisa_reg_print __P((struct ofisa_reg_desc *, int));
    100 int	ofisa_intr_count __P((int));
    101 int	ofisa_intr_get __P((int, struct ofisa_intr_desc *, int));
    102 void	ofisa_intr_print __P((struct ofisa_intr_desc *, int));
    103 int	ofisa_dma_count __P((int));
    104 int	ofisa_dma_get __P((int, struct ofisa_dma_desc *, int));
    105 void	ofisa_dma_print __P((struct ofisa_dma_desc *, int));
    106 
    107 #endif /* _DEV_OFISA_OFISAVAR_H_ */
    108