sa11x1_pcic.c revision 1.23
1 /* $NetBSD: sa11x1_pcic.c,v 1.23 2021/04/24 23:36:28 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 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: sa11x1_pcic.c,v 1.23 2021/04/24 23:36:28 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/malloc.h> 44 45 #include <sys/bus.h> 46 47 #include <dev/pcmcia/pcmciachip.h> 48 #include <dev/pcmcia/pcmciavar.h> 49 #include <arm/sa11x0/sa11x0_reg.h> 50 #include <arm/sa11x0/sa11x0_var.h> 51 #include <arm/sa11x0/sa1111_reg.h> 52 #include <arm/sa11x0/sa1111_var.h> 53 #include <arm/sa11x0/sa11x1_pcicreg.h> 54 #include <arm/sa11x0/sa11xx_pcicvar.h> 55 #include <arm/sa11x0/sa11x1_pcicvar.h> 56 57 #include "sacpcic.h" 58 59 static int sacpcic_print(void *, const char *); 60 61 static void 62 sacpcic_config_deferred(device_t dev) 63 { 64 struct sacpcic_softc *sc = device_private(dev); 65 struct sapcic_socket *so; 66 int i; 67 68 for (i = 0; i < 2; i++) { 69 so = &sc->sc_socket[i]; 70 sapcic_kthread_create(so); 71 72 sacc_intr_establish((sacc_chipset_tag_t)so->pcictag_cookie, 73 i ? IRQ_S1_CDVALID : IRQ_S0_CDVALID, 74 IST_EDGE_RAISE, IPL_BIO, sapcic_intr, so); 75 } 76 } 77 78 void 79 sacpcic_attach_common(struct sacc_softc *psc, struct sacpcic_softc *sc, 80 void *aux, void (* socket_setup_hook)(struct sapcic_socket *)) 81 { 82 int i; 83 struct pcmciabus_attach_args paa; 84 85 aprint_normal("\n"); 86 87 sc->sc_pc.sc_iot = psc->sc_iot; 88 sc->sc_ioh = psc->sc_ioh; 89 90 mutex_init(&sc->sc_pc.sc_lock, MUTEX_DEFAULT, IPL_NONE); 91 92 for (i = 0; i < 2; i++) { 93 sc->sc_socket[i].sc = (struct sapcic_softc *)sc; 94 sc->sc_socket[i].socket = i; 95 sc->sc_socket[i].pcictag_cookie = psc; 96 sc->sc_socket[i].pcictag = NULL; 97 sc->sc_socket[i].event_thread = NULL; 98 sc->sc_socket[i].event = 0; 99 sc->sc_socket[i].laststatus = SAPCIC_CARD_INVALID; 100 sc->sc_socket[i].shutdown = 0; 101 102 socket_setup_hook(&sc->sc_socket[i]); 103 104 paa.paa_busname = "pcmcia"; 105 paa.pct = (pcmcia_chipset_tag_t)&sa11x0_pcmcia_functions; 106 paa.pch = (pcmcia_chipset_handle_t)&sc->sc_socket[i]; 107 108 sc->sc_socket[i].pcmcia = 109 config_found(sc->sc_pc.sc_dev, &paa, sacpcic_print, 110 CFARG_EOL); 111 } 112 113 config_interrupts(sc->sc_pc.sc_dev, sacpcic_config_deferred); 114 } 115 116 int 117 sacpcic_print(void *aux, const char *name) 118 { 119 120 return UNCONF; 121 } 122 123 int 124 sacpcic_read(struct sapcic_socket *so, int reg) 125 { 126 int cr, bit; 127 struct sacpcic_softc *sc = (struct sacpcic_softc *)so->sc; 128 129 cr = bus_space_read_4(sc->sc_pc.sc_iot, sc->sc_ioh, SACPCIC_SR); 130 131 switch (reg) { 132 case SAPCIC_STATUS_CARD: 133 bit = (so->socket ? SR_S1_CARDDETECT : SR_S0_CARDDETECT) & cr; 134 if (bit) 135 return SAPCIC_CARD_INVALID; 136 else 137 return SAPCIC_CARD_VALID; 138 139 case SAPCIC_STATUS_VS1: 140 bit = (so->socket ? SR_S1_VS1 : SR_S0_VS1); 141 return (bit & cr); 142 143 case SAPCIC_STATUS_VS2: 144 bit = (so->socket ? SR_S1_VS2 : SR_S0_VS2); 145 return (bit & cr); 146 147 case SAPCIC_STATUS_READY: 148 bit = (so->socket ? SR_S1_READY : SR_S0_READY); 149 return (bit & cr); 150 151 default: 152 panic("sacpcic_read: bogus register"); 153 } 154 } 155 156 void 157 sacpcic_write(struct sapcic_socket *so, int reg, int arg) 158 { 159 int s, oldvalue, newvalue, mask; 160 struct sacpcic_softc *sc = (struct sacpcic_softc *)so->sc; 161 162 s = splhigh(); 163 oldvalue = bus_space_read_4(sc->sc_pc.sc_iot, sc->sc_ioh, SACPCIC_CR); 164 165 switch (reg) { 166 case SAPCIC_CONTROL_RESET: 167 mask = so->socket ? CR_S1_RST : CR_S0_RST; 168 169 newvalue = (oldvalue & ~mask) | (arg ? mask : 0); 170 break; 171 172 case SAPCIC_CONTROL_LINEENABLE: 173 mask = so->socket ? CR_S1_FLT : CR_S0_FLT; 174 175 newvalue = (oldvalue & ~mask) | (arg ? mask : 0); 176 break; 177 178 case SAPCIC_CONTROL_WAITENABLE: 179 mask = so->socket ? CR_S1_PWAITEN : CR_S0_PWAITEN; 180 181 newvalue = (oldvalue & ~mask) | (arg ? mask : 0); 182 break; 183 184 case SAPCIC_CONTROL_POWERSELECT: 185 mask = so->socket ? CR_S1_PSE : CR_S0_PSE; 186 newvalue = oldvalue & ~mask; 187 188 switch (arg) { 189 case SAPCIC_POWER_3V: 190 break; 191 case SAPCIC_POWER_5V: 192 newvalue |= mask; 193 break; 194 default: 195 splx(s); 196 panic("sacpcic_write: bogus arg"); 197 } 198 break; 199 200 default: 201 splx(s); 202 panic("sacpcic_write: bogus register"); 203 } 204 bus_space_write_4(sc->sc_pc.sc_iot, sc->sc_ioh, SACPCIC_CR, newvalue); 205 splx(s); 206 } 207 208 void 209 sacpcic_clear_intr(int arg) 210 { 211 /* sacc_intr_dispatch takes care of intr status */ 212 } 213 214 void * 215 sacpcic_intr_establish(struct sapcic_socket *so, int level, 216 int (*ih_fun)(void *), void *ih_arg) 217 { 218 int irq; 219 220 irq = so->socket ? IRQ_S1_READY : IRQ_S0_READY; 221 return sacc_intr_establish((sacc_chipset_tag_t)so->pcictag_cookie, irq, 222 IST_EDGE_FALL, level, ih_fun, ih_arg); 223 } 224 225 void 226 sacpcic_intr_disestablish(struct sapcic_socket *so, void *ih) 227 { 228 sacc_intr_disestablish((sacc_chipset_tag_t)so->pcictag_cookie, ih); 229 } 230
Indexes created Wed Oct 01 19:09:53 GMT 2025