1 /* $NetBSD: j720pcic.c,v 1.4 2006/03/04 13:57:11 peter 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* Jornada 720 PCMCIA support. */ 40 41 #include <sys/cdefs.h> 42 __KERNEL_RCSID(0, "$NetBSD: j720pcic.c,v 1.4 2006/03/04 13:57:11 peter Exp $"); 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/types.h> 47 #include <sys/conf.h> 48 #include <sys/file.h> 49 #include <sys/device.h> 50 #include <sys/kernel.h> 51 #include <sys/kthread.h> 52 #include <sys/malloc.h> 53 54 #include <machine/bus.h> 55 #include <machine/platid.h> 56 #include <machine/platid_mask.h> 57 58 #include <dev/pcmcia/pcmciachip.h> 59 #include <dev/pcmcia/pcmciavar.h> 60 61 #include <arm/sa11x0/sa11x0_reg.h> 62 #include <arm/sa11x0/sa11x0_var.h> 63 #include <arm/sa11x0/sa1111_reg.h> 64 #include <arm/sa11x0/sa1111_var.h> 65 #include <arm/sa11x0/sa11x1_pcicreg.h> 66 #include <arm/sa11x0/sa11xx_pcicvar.h> 67 #include <arm/sa11x0/sa11x1_pcicvar.h> 68 69 #include "sacpcic.h" 70 71 static int sacpcic_match(struct device *, struct cfdata *, void *); 72 static void sacpcic_attach(struct device *, struct device *, void *); 73 74 static void j720_socket_setup(struct sapcic_socket *); 75 static void j720_set_power(struct sapcic_socket *, int); 76 77 static struct sapcic_tag j720_sacpcic_functions = { 78 sacpcic_read, 79 sacpcic_write, 80 j720_set_power, 81 sacpcic_clear_intr, 82 sacpcic_intr_establish, 83 sacpcic_intr_disestablish 84 }; 85 86 static int j720_power_capability[] = { 87 SAPCIC_POWER_5V | SAPCIC_POWER_3V, SAPCIC_POWER_3V 88 }; 89 90 static struct platid_data sacpcic_platid_table[] = { 91 { &platid_mask_MACH_HP_JORNADA_7XX, j720_power_capability }, 92 { NULL, NULL } 93 }; 94 95 CFATTACH_DECL(sacpcic, sizeof(struct sacpcic_softc), 96 sacpcic_match, sacpcic_attach, NULL, NULL); 97 98 99 static int 100 sacpcic_match(struct device *parent, struct cfdata *cf, void *aux) 101 { 102 103 return 1; 104 } 105 106 static void 107 sacpcic_attach(struct device *parent, struct device *self, void *aux) 108 { 109 110 sacpcic_attach_common((struct sacc_softc *)parent, 111 (struct sacpcic_softc *)self, aux, j720_socket_setup); 112 } 113 114 static void 115 j720_socket_setup(struct sapcic_socket *sp) 116 { 117 int *ip; 118 struct platid_data *p; 119 int socket = sp->socket; 120 121 p = platid_search_data(&platid, sacpcic_platid_table); 122 123 if (p == NULL) { 124 sp->power_capability = SAPCIC_POWER_5V; 125 } else { 126 ip = (int *)p->data; 127 sp->power_capability = ip[socket]; 128 } 129 130 sp->pcictag = &j720_sacpcic_functions; 131 } 132 133 static void 134 j720_set_power(struct sapcic_socket *so, int arg) 135 { 136 int newval, oldval, s; 137 struct sacc_softc *sc = so->pcictag_cookie; 138 139 /* XXX this isn't well confirmed. DANGER DANGER */ 140 switch (arg) { 141 case SAPCIC_POWER_OFF: 142 newval = 0; 143 break; 144 case SAPCIC_POWER_3V: 145 newval = 2; 146 break; 147 case SAPCIC_POWER_5V: 148 newval = 1; 149 break; 150 default: 151 panic("j720_set_power: bogus arg (%d)", arg); 152 } 153 154 s = splbio(); 155 oldval = bus_space_read_4(sc->sc_iot, sc->sc_ioh, SACCGPIOA_DVR); 156 157 switch (so->socket) { 158 case 0: 159 newval = newval | (oldval & 0xc); 160 break; 161 case 1: 162 newval = (newval << 2) | (oldval & 3); 163 break; 164 default: 165 splx(s); 166 panic("j720_set_power: bogus socket (%d)", so->socket); 167 } 168 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SACCGPIOA_DVR, newval); 169 splx(s); 170 } 171