1 /* $NetBSD: j720pcic.c,v 1.9 2023/12/20 14:50:02 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by IWAMOTO Toshihiro.
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 /* Jornada 720 PCMCIA support. */
33
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: j720pcic.c,v 1.9 2023/12/20 14:50:02 thorpej Exp $");
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/types.h>
40 #include <sys/conf.h>
41 #include <sys/file.h>
42 #include <sys/device.h>
43 #include <sys/kernel.h>
44 #include <sys/kthread.h>
45 #include <sys/bus.h>
46
47 #include <machine/platid.h>
48 #include <machine/platid_mask.h>
49
50 #include <dev/pcmcia/pcmciachip.h>
51 #include <dev/pcmcia/pcmciavar.h>
52
53 #include <arm/sa11x0/sa11x0_reg.h>
54 #include <arm/sa11x0/sa11x0_var.h>
55 #include <arm/sa11x0/sa1111_reg.h>
56 #include <arm/sa11x0/sa1111_var.h>
57 #include <arm/sa11x0/sa11x1_pcicreg.h>
58 #include <arm/sa11x0/sa11xx_pcicvar.h>
59 #include <arm/sa11x0/sa11x1_pcicvar.h>
60
61 #include "sacpcic.h"
62
63 static int sacpcic_match(device_t, cfdata_t, void *);
64 static void sacpcic_attach(device_t, device_t, void *);
65
66 static void j720_socket_setup(struct sapcic_socket *);
67 static void j720_set_power(struct sapcic_socket *, int);
68
69 static struct sapcic_tag j720_sacpcic_functions = {
70 sacpcic_read,
71 sacpcic_write,
72 j720_set_power,
73 sacpcic_clear_intr,
74 sacpcic_intr_establish,
75 sacpcic_intr_disestablish
76 };
77
78 static int j720_power_capability[] = {
79 SAPCIC_POWER_5V | SAPCIC_POWER_3V, SAPCIC_POWER_3V
80 };
81
82 static struct platid_data sacpcic_platid_table[] = {
83 { &platid_mask_MACH_HP_JORNADA_7XX, j720_power_capability },
84 { NULL, NULL }
85 };
86
87 CFATTACH_DECL_NEW(sacpcic, sizeof(struct sacpcic_softc),
88 sacpcic_match, sacpcic_attach, NULL, NULL);
89
90
91 static int
sacpcic_match(device_t parent,cfdata_t cf,void * aux)92 sacpcic_match(device_t parent, cfdata_t cf, void *aux)
93 {
94
95 return 1;
96 }
97
98 static void
sacpcic_attach(device_t parent,device_t self,void * aux)99 sacpcic_attach(device_t parent, device_t self, void *aux)
100 {
101 struct sacc_softc *psc;
102 struct sacpcic_softc *sc;
103
104 psc = device_private(parent);
105 sc = device_private(self);
106 sc->sc_pc.sc_dev = self;
107
108 sacpcic_attach_common(psc, sc, aux, j720_socket_setup);
109 }
110
111 static void
j720_socket_setup(struct sapcic_socket * sp)112 j720_socket_setup(struct sapcic_socket *sp)
113 {
114 int *ip;
115 struct platid_data *p;
116 int socket = sp->socket;
117
118 p = platid_search_data(&platid, sacpcic_platid_table);
119
120 if (p == NULL) {
121 sp->power_capability = SAPCIC_POWER_5V;
122 } else {
123 ip = (int *)p->data;
124 sp->power_capability = ip[socket];
125 }
126
127 sp->pcictag = &j720_sacpcic_functions;
128 }
129
130 static void
j720_set_power(struct sapcic_socket * so,int arg)131 j720_set_power(struct sapcic_socket *so, int arg)
132 {
133 int newval, oldval, s;
134 struct sacc_softc *sc = so->pcictag_cookie;
135
136 /* XXX this isn't well confirmed. DANGER DANGER */
137 switch (arg) {
138 case SAPCIC_POWER_OFF:
139 newval = 0;
140 break;
141 case SAPCIC_POWER_3V:
142 newval = 2;
143 break;
144 case SAPCIC_POWER_5V:
145 newval = 1;
146 break;
147 default:
148 panic("j720_set_power: bogus arg (%d)", arg);
149 }
150
151 s = splbio();
152 oldval = bus_space_read_4(sc->sc_iot, sc->sc_ioh, SACCGPIOA_DVR);
153
154 switch (so->socket) {
155 case 0:
156 newval = newval | (oldval & 0xc);
157 break;
158 case 1:
159 newval = (newval << 2) | (oldval & 3);
160 break;
161 default:
162 splx(s);
163 panic("j720_set_power: bogus socket (%d)", so->socket);
164 }
165 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SACCGPIOA_DVR, newval);
166 splx(s);
167 }
168