xref: /netbsd/sys/dev/hpc/hpcioman.c (revision 6550d01e)
1 /*	$NetBSD: hpcioman.c,v 1.18 2009/05/12 14:22:39 cegger Exp $ */
2 
3 /*-
4  * Copyright (c) 1999-2001 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by UCHIYAMA Yasushi.
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 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: hpcioman.c,v 1.18 2009/05/12 14:22:39 cegger Exp $");
34 
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/device.h>
38 
39 #include <machine/config_hook.h>
40 #include <machine/platid.h>
41 #include <machine/platid_mask.h>
42 
43 #include <sys/bus.h>
44 #include <dev/hpc/hpciovar.h>
45 #include <dev/hpc/hpciomanvar.h>
46 
47 #include "locators.h"
48 
49 int	hpcioman_match(device_t, cfdata_t, void *);
50 void	hpcioman_attach(device_t, device_t, void *);
51 int	hpcioman_print(void *, const char *);
52 int	hpcioman_search(device_t, cfdata_t,
53 			const int *, void *);
54 
55 struct hpcioman_softc {
56 	struct device sc_dev;
57 };
58 
59 CFATTACH_DECL(hpcioman, sizeof(struct hpcioman_softc),
60     hpcioman_match, hpcioman_attach, NULL, NULL);
61 
62 int
63 hpcioman_match(device_t parent, cfdata_t cf, void *aux)
64 {
65 	struct hpcio_attach_args *haa = aux;
66 	platid_mask_t mask;
67 
68 	if (strcmp(haa->haa_busname, HPCIO_BUSNAME))
69 		return (0);
70 	/* select platform */
71 	mask = PLATID_DEREF(cf->cf_loc[HPCIOIFCF_PLATFORM]);
72 
73 	return (platid_match(&platid, &mask));
74 }
75 
76 void
77 hpcioman_attach(device_t parent, device_t self, void *aux)
78 {
79 	printf("\n");
80 
81 	config_search_ia(hpcioman_search, self, "hpcioman", aux);
82 }
83 
84 int
85 hpcioman_search(device_t parent, cfdata_t cf,
86 		const int *ldesc, void *aux)
87 {
88 	//struct hpcioman_softc *sc = (struct hpcioman_softc *)parent;
89 	struct hpcio_attach_args *haa = aux;
90 	struct hpcioman_attach_args hma;
91 
92 	/* get io chip */
93 	hma.hma_hc = (*haa->haa_getchip)(haa->haa_sc, cf->cf_iochip);
94 
95 	/* interrupt mode */
96 	if (cf->cf_level != HPCIOMANCF_LEVEL_DEFAULT) {
97 		switch (cf->cf_hold) {
98 		case 1:
99 			hma.hma_intr_mode = HPCIO_INTR_HOLD;
100 			break;
101 		case 0:
102 		case HPCIOMANCF_HOLD_DEFAULT:
103 		default:
104 			hma.hma_intr_mode = HPCIO_INTR_THROUGH;
105 			break;
106 		}
107 		hma.hma_intr_mode |= HPCIO_INTR_LEVEL;
108 		if (cf->cf_level == 0)
109 			hma.hma_intr_mode |= HPCIO_INTR_LOW;
110 		else
111 			hma.hma_intr_mode |= HPCIO_INTR_HIGH;
112 	} else {
113 		switch (cf->cf_hold) {
114 		case 0:
115 			hma.hma_intr_mode = HPCIO_INTR_THROUGH;
116 			break;
117 		case 1:
118 		case HPCIOMANCF_HOLD_DEFAULT:
119 		default:
120 			hma.hma_intr_mode = HPCIO_INTR_HOLD;
121 			break;
122 		}
123 		hma.hma_intr_mode |= HPCIO_INTR_EDGE;
124 		switch (cf->cf_edge) {
125 		case 1:
126 			hma.hma_intr_mode |= HPCIO_INTR_POSEDGE;
127 			break;
128 		case 2:
129 			hma.hma_intr_mode |= HPCIO_INTR_NEGEDGE;
130 			break;
131 		case 0:
132 		case 3:
133 		case HPCIOMANCF_EDGE_DEFAULT:
134 			hma.hma_intr_mode |= HPCIO_INTR_POSEDGE;
135 			hma.hma_intr_mode |= HPCIO_INTR_NEGEDGE;
136 			break;
137 		default:
138 			printf("%s(%d): invalid configuration, edge=%d",
139 			    __FILE__, __LINE__, cf->cf_edge);
140 			break;
141 		}
142 	}
143 
144 	hma.hma_type = cf->cf_type;
145 	hma.hma_id = cf->cf_id;
146 	hma.hma_port = cf->cf_port;
147 	if (cf->cf_active == 0) {
148 		hma.hma_on = 0;
149 		hma.hma_off = 1;
150 	} else {
151 		hma.hma_on = 1;
152 		hma.hma_off = 0;
153 	}
154 	hma.hma_initvalue = -1; /* none */
155 	if (cf->cf_initvalue != HPCIOMANCF_INITVALUE_DEFAULT) {
156 		if (cf->cf_initvalue == 0)
157 			hma.hma_initvalue = hma.hma_off;
158 		else
159 			hma.hma_initvalue = hma.hma_on;
160 	}
161 	hma.hma_connect = cf->cf_connect;
162 
163 	config_attach(parent, cf, &hma, hpcioman_print);
164 
165 	return (0);
166 }
167 
168 int
169 hpcioman_print(void *aux, const char *pnp)
170 {
171 	struct hpcioman_attach_args *hma = aux;
172 	int type = hma->hma_type;
173 
174 	if (!pnp)  {
175 		aprint_normal(" iochip %s, port %d, type %d, id %d",
176 		    hma->hma_hc ? hma->hma_hc->hc_name : "not found",
177 		    hma->hma_port, type, hma->hma_id);
178 		if (type == CONFIG_HOOK_BUTTONEVENT ||
179 		    type == CONFIG_HOOK_PMEVENT ||
180 		    type == CONFIG_HOOK_EVENT ||
181 		    type == CONFIG_HOOK_PCIINTR) {
182 			if (hma->hma_intr_mode & HPCIO_INTR_EDGE)
183 				aprint_normal (", interrupt edge [%s%s]",
184 				    (hma->hma_intr_mode&HPCIO_INTR_POSEDGE)
185 				    ? "p" : "",
186 				    (hma->hma_intr_mode&HPCIO_INTR_NEGEDGE)
187 				    ? "n" : "");
188 			else
189 				aprint_normal (", interrupt level %s",
190 				    (hma->hma_intr_mode&HPCIO_INTR_HIGH) ?
191 				    "high" : "low");
192 		}
193 		if (hma->hma_initvalue != -1)
194 			aprint_normal(", initial value %d", hma->hma_initvalue);
195 		if (hma->hma_on == 0)
196 			aprint_normal(", active low");
197 	}
198 
199 	return (QUIET);
200 }
201