Annotation of sys/arch/arm/sa11x0/sa11x1_pcic.c, Revision 1.1
1.1 ! nbrk 1: /* $NetBSD: sa11x1_pcic.c,v 1.16 2007/10/17 19:53:43 garbled 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: #include <sys/cdefs.h>
! 40: __KERNEL_RCSID(0, "$NetBSD: sa11x1_pcic.c,v 1.16 2007/10/17 19:53:43 garbled Exp $");
! 41:
! 42: #include <sys/param.h>
! 43: #include <sys/systm.h>
! 44: #include <sys/types.h>
! 45: #include <sys/conf.h>
! 46: #include <sys/file.h>
! 47: #include <sys/device.h>
! 48: #include <sys/kernel.h>
! 49: #include <sys/kthread.h>
! 50: #include <sys/malloc.h>
! 51:
! 52: #include <machine/bus.h>
! 53:
! 54: #include <dev/pcmcia/pcmciachip.h>
! 55: #include <dev/pcmcia/pcmciavar.h>
! 56: #include <arm/sa11x0/sa11x0_reg.h>
! 57: #include <arm/sa11x0/sa11x0_var.h>
! 58: #include <arm/sa11x0/sa1111_reg.h>
! 59: #include <arm/sa11x0/sa1111_var.h>
! 60: #include <arm/sa11x0/sa11x1_pcicreg.h>
! 61: #include <arm/sa11x0/sa11xx_pcicvar.h>
! 62: #include <arm/sa11x0/sa11x1_pcicvar.h>
! 63:
! 64: #include "sacpcic.h"
! 65:
! 66: static int sacpcic_print(void *, const char *);
! 67:
! 68: void
! 69: sacpcic_attach_common(struct sacc_softc *psc, struct sacpcic_softc *sc,
! 70: void *aux, void (* socket_setup_hook)(struct sapcic_socket *))
! 71: {
! 72: int i;
! 73: struct pcmciabus_attach_args paa;
! 74:
! 75: printf("\n");
! 76:
! 77: sc->sc_pc.sc_iot = psc->sc_iot;
! 78: sc->sc_ioh = psc->sc_ioh;
! 79:
! 80: for (i = 0; i < 2; i++) {
! 81: sc->sc_socket[i].sc = (struct sapcic_softc *)sc;
! 82: sc->sc_socket[i].socket = i;
! 83: sc->sc_socket[i].pcictag_cookie = psc;
! 84: sc->sc_socket[i].pcictag = NULL;
! 85: sc->sc_socket[i].event_thread = NULL;
! 86: sc->sc_socket[i].event = 0;
! 87: sc->sc_socket[i].laststatus = SAPCIC_CARD_INVALID;
! 88: sc->sc_socket[i].shutdown = 0;
! 89:
! 90: socket_setup_hook(&sc->sc_socket[i]);
! 91:
! 92: paa.paa_busname = "pcmcia";
! 93: paa.pct = (pcmcia_chipset_tag_t)&sa11x0_pcmcia_functions;
! 94: paa.pch = (pcmcia_chipset_handle_t)&sc->sc_socket[i];
! 95: paa.iobase = 0;
! 96: paa.iosize = 0x4000000;
! 97:
! 98: sc->sc_socket[i].pcmcia =
! 99: config_found_ia(&sc->sc_pc.sc_dev, "pcmciabus", &paa,
! 100: sacpcic_print);
! 101:
! 102: sacc_intr_establish((sacc_chipset_tag_t)psc,
! 103: i ? IRQ_S1_CDVALID : IRQ_S0_CDVALID,
! 104: IST_EDGE_RAISE, IPL_BIO, sapcic_intr,
! 105: &sc->sc_socket[i]);
! 106:
! 107: /* create kthread */
! 108: sapcic_kthread_create(&sc->sc_socket[i]);
! 109: #if 0 /* XXX */
! 110: /* establish_intr should be after creating the kthread */
! 111: config_interrupt(&sc->sc_socket[i], sapcic_config_intr);
! 112: #endif
! 113: }
! 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: }
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