1 /* $NetBSD: ipaq_pcic.c,v 1.24 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 Ichiro FUKUHARA (ichiro (at) ichiro.org). 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: ipaq_pcic.c,v 1.24 2023/12/20 14:50:02 thorpej Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/types.h> 38 #include <sys/conf.h> 39 #include <sys/file.h> 40 #include <sys/device.h> 41 #include <sys/kernel.h> 42 #include <sys/kthread.h> 43 #include <sys/bus.h> 44 45 #include <dev/pcmcia/pcmciachip.h> 46 #include <dev/pcmcia/pcmciavar.h> 47 48 #include <hpcarm/dev/ipaq_saipvar.h> 49 #include <hpcarm/dev/ipaq_pcicreg.h> 50 #include <hpcarm/dev/ipaq_gpioreg.h> 51 52 #include <arm/sa11x0/sa11x0_gpioreg.h> 53 #include <arm/sa11x0/sa11x0_var.h> 54 #include <arm/sa11x0/sa11xx_pcicvar.h> 55 56 #include "ipaqpcic.h" 57 58 static int ipaqpcic_match(device_t, cfdata_t, void *); 59 static void ipaqpcic_attach(device_t, device_t, void *); 60 static int ipaqpcic_print(void *, const char *); 61 62 static int ipaqpcic_read(struct sapcic_socket *, int); 63 static void ipaqpcic_write(struct sapcic_socket *, int, int); 64 static void ipaqpcic_set_power(struct sapcic_socket *, int); 65 static void ipaqpcic_clear_intr(int); 66 static void *ipaqpcic_intr_establish(struct sapcic_socket *, int, 67 int (*)(void *), void *); 68 static void ipaqpcic_intr_disestablish(struct sapcic_socket *, void *); 69 70 struct ipaqpcic_softc { 71 struct sapcic_softc sc_pc; 72 bus_space_handle_t sc_ioh; 73 struct ipaq_softc *sc_parent; 74 struct sapcic_socket sc_socket[2]; 75 }; 76 77 static void ipaqpcic_init(struct ipaqpcic_softc *); 78 79 static struct sapcic_tag ipaqpcic_functions = { 80 ipaqpcic_read, 81 ipaqpcic_write, 82 ipaqpcic_set_power, 83 ipaqpcic_clear_intr, 84 ipaqpcic_intr_establish, 85 ipaqpcic_intr_disestablish 86 }; 87 88 CFATTACH_DECL_NEW(ipaqpcic, sizeof(struct ipaqpcic_softc), 89 ipaqpcic_match, ipaqpcic_attach, NULL, NULL); 90 91 static int 92 ipaqpcic_match(device_t parent, cfdata_t cf, void *aux) 93 { 94 return (1); 95 } 96 97 static void 98 ipaqpcic_attach(device_t parent, device_t self, void *aux) 99 { 100 int i; 101 struct pcmciabus_attach_args paa; 102 struct ipaqpcic_softc *sc = device_private(self); 103 struct ipaq_softc *psc = device_private(parent); 104 105 aprint_normal("\n"); 106 107 sc->sc_pc.sc_dev = self; 108 sc->sc_pc.sc_iot = psc->sc_iot; 109 sc->sc_ioh = psc->sc_ioh; 110 sc->sc_parent = psc; 111 112 ipaqpcic_init(sc); 113 114 for(i = 0; i < 2; i++) { 115 sc->sc_socket[i].sc = (struct sapcic_softc *)sc; 116 sc->sc_socket[i].socket = i; 117 sc->sc_socket[i].pcictag_cookie = psc; 118 sc->sc_socket[i].pcictag = &ipaqpcic_functions; 119 sc->sc_socket[i].event_thread = NULL; 120 sc->sc_socket[i].event = 0; 121 sc->sc_socket[i].laststatus = SAPCIC_CARD_INVALID; 122 sc->sc_socket[i].shutdown = 0; 123 124 paa.paa_busname = "pcmcia"; 125 paa.pct = (pcmcia_chipset_tag_t)&sa11x0_pcmcia_functions; 126 paa.pch = (pcmcia_chipset_handle_t)&sc->sc_socket[i]; 127 128 sc->sc_socket[i].pcmcia = 129 config_found(sc->sc_pc.sc_dev, &paa, ipaqpcic_print, 130 CFARGS_NONE); 131 132 sa11x0_intr_establish((sa11x0_chipset_tag_t)psc, 133 i ? IRQ_CD1 : IRQ_CD0, 134 1, IPL_BIO, sapcic_intr, 135 &sc->sc_socket[i]); 136 137 /* schedule kthread creation */ 138 sapcic_kthread_create(&sc->sc_socket[i]); 139 140 #if 0 /* XXX */ 141 /* establish_intr should be after creating the kthread */ 142 config_interrupt(&sc->sc_socket[i], ipaqpcic_config_intr); 143 #endif 144 } 145 } 146 147 static int 148 ipaqpcic_print(void *aux, const char *name) 149 { 150 return (UNCONF); 151 } 152 153 static void 154 ipaqpcic_init(struct ipaqpcic_softc *sc) 155 { 156 int cr; 157 158 /* All those are inputs */ 159 cr = bus_space_read_4(sc->sc_pc.sc_iot, sc->sc_parent->sc_gpioh, SAGPIO_PDR); 160 cr &= ~(GPIO_H3600_PCMCIA_CD0 | GPIO_H3600_PCMCIA_CD1 | GPIO_H3600_PCMCIA_IRQ0 | 161 GPIO_H3600_PCMCIA_IRQ1); 162 bus_space_write_4(sc->sc_pc.sc_iot, sc->sc_parent->sc_gpioh, SAGPIO_PDR, cr); 163 164 sc->sc_parent->ipaq_egpio |= 165 EGPIO_H3600_OPT_NVRAM_ON | EGPIO_H3600_OPT_ON ; 166 sc->sc_parent->ipaq_egpio &= 167 ~(EGPIO_H3600_CARD_RESET | EGPIO_H3600_OPT_RESET); 168 bus_space_write_2(sc->sc_pc.sc_iot, sc->sc_parent->sc_egpioh, 169 0, sc->sc_parent->ipaq_egpio); 170 } 171 172 static int 173 ipaqpcic_read(struct sapcic_socket *so, int reg) 174 { 175 int cr, bit; 176 struct ipaqpcic_softc *sc = (struct ipaqpcic_softc *)so->sc; 177 178 cr = bus_space_read_4(sc->sc_pc.sc_iot, sc->sc_parent->sc_gpioh, SAGPIO_PLR); 179 180 switch (reg) { 181 case SAPCIC_STATUS_CARD: 182 bit = (so->socket ? GPIO_H3600_PCMCIA_CD0 : 183 GPIO_H3600_PCMCIA_CD1) & cr; 184 if (!bit) 185 return SAPCIC_CARD_INVALID; 186 else 187 return SAPCIC_CARD_VALID; 188 case SAPCIC_STATUS_VS1: 189 case SAPCIC_STATUS_VS2: 190 case SAPCIC_STATUS_READY: 191 bit = (so->socket ? GPIO_H3600_PCMCIA_IRQ0: 192 GPIO_H3600_PCMCIA_IRQ1); 193 return (bit & cr); 194 default: 195 panic("ipaqpcic_read: bogus register"); 196 } 197 } 198 199 static void 200 ipaqpcic_write(struct sapcic_socket *so, int reg, int arg) 201 { 202 int s; 203 struct ipaqpcic_softc *sc = (struct ipaqpcic_softc *)so->sc; 204 205 s = splhigh(); 206 switch (reg) { 207 case SAPCIC_CONTROL_RESET: 208 sc->sc_parent->ipaq_egpio |= EGPIO_H3600_CARD_RESET; 209 break; 210 case SAPCIC_CONTROL_LINEENABLE: 211 case SAPCIC_CONTROL_WAITENABLE: 212 case SAPCIC_CONTROL_POWERSELECT: 213 break; 214 215 default: 216 splx(s); 217 panic("ipaqpcic_write: bogus register"); 218 } 219 bus_space_write_2(sc->sc_pc.sc_iot, sc->sc_parent->sc_egpioh, 0, 220 sc->sc_parent->ipaq_egpio); 221 splx(s); 222 } 223 224 static void 225 ipaqpcic_set_power(struct sapcic_socket *so, int arg) 226 { 227 int s; 228 struct ipaqpcic_softc *sc = (struct ipaqpcic_softc *)so->sc; 229 230 s = splbio(); 231 switch (arg) { 232 case SAPCIC_POWER_OFF: 233 sc->sc_parent->ipaq_egpio &= 234 ~(EGPIO_H3600_OPT_NVRAM_ON | EGPIO_H3600_OPT_ON); 235 break; 236 case SAPCIC_POWER_3V: 237 case SAPCIC_POWER_5V: 238 sc->sc_parent->ipaq_egpio |= 239 EGPIO_H3600_OPT_NVRAM_ON | EGPIO_H3600_OPT_ON; 240 break; 241 default: 242 panic("ipaqpcic_set_power: bogus arg"); 243 } 244 bus_space_write_2(sc->sc_pc.sc_iot, sc->sc_parent->sc_egpioh, 245 0, sc->sc_parent->ipaq_egpio); 246 splx(s); 247 } 248 249 static void 250 ipaqpcic_clear_intr(int arg) 251 { 252 } 253 254 static void * 255 ipaqpcic_intr_establish(struct sapcic_socket *so, int level, 256 int (*ih_fun)(void *), void *ih_arg) 257 { 258 int irq; 259 260 irq = so->socket ? IRQ_IRQ0 : IRQ_IRQ1; 261 return (sa11x0_intr_establish((sa11x0_chipset_tag_t)so->pcictag_cookie, 262 irq-16, 1, level, ih_fun, ih_arg)); 263 } 264 265 static void 266 ipaqpcic_intr_disestablish(struct sapcic_socket *so, void *ih) 267 { 268 sa11x0_intr_disestablish((sa11x0_chipset_tag_t)so->pcictag_cookie, ih); 269 } 270
Indexes created Sun Sep 21 20:09:37 GMT 2025