xref: /netbsd/sys/arch/alpha/jensenio/jenseniovar.h (revision 3988b25e)
1 /* $NetBSD: jenseniovar.h,v 1.6 2020/10/14 00:59:50 thorpej Exp $ */
2 
3 /*-
4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _ALPHA_JENSENIO_JENSENIOVAR_H_
33 #define _ALPHA_JENSENIO_JENSENIOVAR_H_
34 
35 #include <sys/evcnt.h>
36 
37 /*
38  * Arguments used to attach devices to the Jensen I/O bus.
39  */
40 struct jensenio_attach_args {
41 	union {
42 		struct eisabus_attach_args jaun_eisa;
43 		struct isabus_attach_args jaun_isa;
44 	} ja_un;
45 
46 	const char *ja_name;
47 	bus_addr_t ja_ioaddr;		/* I/O space address */
48 	int ja_irq[2];			/* Jensen IRQs */
49 
50 /* For attaching busses. */
51 #define	ja_eisa		ja_un.jaun_eisa
52 #define	ja_isa		ja_un.jaun_isa
53 
54 /* For attaching built-in devices. */
55 #define	ja_iot		ja_eisa.eba_iot
56 #define	ja_ec		ja_eisa.eba_ec
57 };
58 
59 /*
60  * The Jensen I/O bus configuration.
61  *
62  * All of the information that the chipset-specific functions need to
63  * do their dirty work (and more!)
64  */
65 struct jensenio_config {
66 	int	jc_initted;
67 
68 	struct alpha_bus_space jc_internal_iot, jc_eisa_iot, jc_eisa_memt;
69 	struct alpha_eisa_chipset jc_ec;
70 	struct alpha_isa_chipset jc_ic;
71 
72 	struct alpha_bus_dma_tag jc_dmat_eisa, jc_dmat_isa;
73 
74 	struct extent *jc_io_ex, *jc_s_mem_ex;
75 
76 	int	jc_mallocsafe;
77 };
78 
79 /*
80  * Interrupt handle for Jensen I/O interrupts that hook into
81  * the SCB directly.
82  */
83 struct jensenio_scb_intrhand {
84 	int		(*jih_func)(void *);
85 	void		*jih_arg;
86 	unsigned long	jih_vec;
87 	char		jih_vecstr[8];
88 	struct evcnt	jih_evcnt;
89 };
90 
91 void	jensenio_page_physload(unsigned long, unsigned long);
92 void	jensenio_init(struct jensenio_config *, int);
93 void	jensenio_bus_io_init(bus_space_tag_t, void *);
94 void	jensenio_bus_intio_init(bus_space_tag_t, void *);
95 void	jensenio_bus_mem_init(bus_space_tag_t, void *);
96 void	jensenio_intr_init(struct jensenio_config *);
97 void	jensenio_dma_init(struct jensenio_config *);
98 
99 void	jensenio_intr_establish(struct jensenio_scb_intrhand *,
100 	    unsigned long, int, int (*)(void *), void *);
101 #endif /* _ALPHA_JENSENIO_JENSENIOVAR_H_ */
102