1/*      $NetBSD: j720pcic.c,v 1.7 2010/08/19 15:17:53 tsutsui 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 1.7 2010/08/19 15:17:53 tsutsui 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/malloc.h>
46#include <sys/bus.h>
47
48#include <machine/platid.h>
49#include <machine/platid_mask.h>
50
51#include <dev/pcmcia/pcmciachip.h>
52#include <dev/pcmcia/pcmciavar.h>
53
54#include <arm/sa11x0/sa11x0_reg.h>
55#include <arm/sa11x0/sa11x0_var.h>
56#include <arm/sa11x0/sa1111_reg.h>
57#include <arm/sa11x0/sa1111_var.h>
58#include <arm/sa11x0/sa11x1_pcicreg.h>
59#include <arm/sa11x0/sa11xx_pcicvar.h>
60#include <arm/sa11x0/sa11x1_pcicvar.h>
61
62#include "sacpcic.h"
63
64static int	sacpcic_match(device_t, cfdata_t, void *);
65static void	sacpcic_attach(device_t, device_t, void *);
66
67static void	j720_socket_setup(struct sapcic_socket *);
68static void	j720_set_power(struct sapcic_socket *, int);
69
70static struct sapcic_tag j720_sacpcic_functions = {
71	sacpcic_read,
72	sacpcic_write,
73	j720_set_power,
74	sacpcic_clear_intr,
75	sacpcic_intr_establish,
76	sacpcic_intr_disestablish
77};
78
79static int j720_power_capability[] = {
80	SAPCIC_POWER_5V | SAPCIC_POWER_3V, SAPCIC_POWER_3V
81};
82
83static struct platid_data sacpcic_platid_table[] = {
84	{ &platid_mask_MACH_HP_JORNADA_7XX, j720_power_capability },
85	{ NULL, NULL }
86};
87
88CFATTACH_DECL_NEW(sacpcic, sizeof(struct sacpcic_softc),
89    sacpcic_match, sacpcic_attach, NULL, NULL);
90
91
92static int
93sacpcic_match(device_t parent, cfdata_t cf, void *aux)
94{
95
96	return 1;
97}
98
99static void
100sacpcic_attach(device_t parent, device_t self, void *aux)
101{
102	struct sacc_softc *psc;
103	struct sacpcic_softc *sc;
104
105	psc = device_private(parent);
106	sc = device_private(self);
107	sc->sc_pc.sc_dev = self;
108
109	sacpcic_attach_common(psc, sc, aux, j720_socket_setup);
110}
111
112static void
113j720_socket_setup(struct sapcic_socket *sp)
114{
115	int *ip;
116	struct platid_data *p;
117	int socket = sp->socket;
118
119	p = platid_search_data(&platid, sacpcic_platid_table);
120
121	if (p == NULL) {
122		sp->power_capability = SAPCIC_POWER_5V;
123	} else {
124		ip = (int *)p->data;
125		sp->power_capability = ip[socket];
126	}
127
128	sp->pcictag = &j720_sacpcic_functions;
129}
130
131static void
132j720_set_power(struct sapcic_socket *so, int arg)
133{
134	int newval, oldval, s;
135	struct sacc_softc *sc = so->pcictag_cookie;
136
137	/* XXX this isn't well confirmed. DANGER DANGER */
138	switch (arg) {
139	case SAPCIC_POWER_OFF:
140		newval = 0;
141		break;
142	case SAPCIC_POWER_3V:
143		newval = 2;
144		break;
145	case SAPCIC_POWER_5V:
146		newval = 1;
147		break;
148	default:
149		panic("j720_set_power: bogus arg (%d)", arg);
150	}
151
152	s = splbio();
153	oldval = bus_space_read_4(sc->sc_iot, sc->sc_ioh, SACCGPIOA_DVR);
154
155	switch (so->socket) {
156	case 0:
157		newval = newval | (oldval & 0xc);
158		break;
159	case 1:
160		newval = (newval << 2) | (oldval & 3);
161		break;
162	default:
163		splx(s);
164		panic("j720_set_power: bogus socket (%d)", so->socket);
165	}
166	bus_space_write_4(sc->sc_iot, sc->sc_ioh, SACCGPIOA_DVR, newval);
167	splx(s);
168}
169