xref: /netbsd-src/sys/arch/prep/include/eisa_machdep.h (revision e58a356cba5da26ec5dfa3e7b91db913ffb59130)
1 /*	$NetBSD: eisa_machdep.h,v 1.3 2014/03/29 19:28:29 christos Exp $	*/
2 
3 /*
4  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *      This product includes software developed by Christopher G. Demetriou
17  *	for the NetBSD Project.
18  * 4. The name of the author may not be used to endorse or promote products
19  *    derived from this software without specific prior written permission
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 /*
34  * Machine-specific definitions for EISA autoconfiguration.
35  */
36 
37 /*
38  * prep-specific EISA definitions.
39  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
40  */
41 #define	EISA_ID			"EISA"
42 #define	EISA_ID_LEN		(sizeof(EISA_ID) - 1)
43 #define	EISA_ID_PADDR		0xfffd9
44 
45 extern struct powerpc_bus_dma_tag eisa_bus_dma_tag;
46 
47 /* EISA Edge/Level trigger control registers */
48 #define ELCR0   0x4d0                   /* eisa irq 0-7 */
49 #define ELCR1   0x4d1                   /* eisa irq 8-15 */
50 
51 /*
52  * Types provided to machine-independent EISA code.
53  */
54 typedef void *eisa_chipset_tag_t;
55 typedef int eisa_intr_handle_t;
56 
57 /*
58  * Functions provided to machine-independent EISA code.
59  */
60 void		eisa_attach_hook(device_t, device_t,
61 		    struct eisabus_attach_args *);
62 int		eisa_maxslots(eisa_chipset_tag_t);
63 int		eisa_intr_map(eisa_chipset_tag_t, u_int,
64 		    eisa_intr_handle_t *);
65 const char	*eisa_intr_string(eisa_chipset_tag_t, eisa_intr_handle_t,
66 		    char *, size_t);
67 const struct evcnt *eisa_intr_evcnt(eisa_chipset_tag_t, eisa_intr_handle_t);
68 void		*eisa_intr_establish(eisa_chipset_tag_t,
69 		    eisa_intr_handle_t, int, int, int (*)(void *), void *);
70 void		eisa_intr_disestablish(eisa_chipset_tag_t, void *);
71 int		eisa_mem_alloc(bus_space_tag_t, bus_size_t, bus_size_t,
72 		    bus_addr_t, int, bus_addr_t *, bus_space_handle_t *);
73 void		eisa_mem_free(bus_space_tag_t, bus_space_handle_t,
74 		    bus_size_t);
75 
76 int		eisa_conf_read_mem(eisa_chipset_tag_t, int, int, int,
77 		    struct eisa_cfg_mem *);
78 int		eisa_conf_read_irq(eisa_chipset_tag_t, int, int, int,
79 		    struct eisa_cfg_irq *);
80 int		eisa_conf_read_dma(eisa_chipset_tag_t, int, int, int,
81 		    struct eisa_cfg_dma *);
82 int		eisa_conf_read_io(eisa_chipset_tag_t, int, int, int,
83 		    struct eisa_cfg_io *);
84