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Annotation of sys/arch/jornada/dev/sacpcic_jornada.c, Revision 1.1

1.1     ! nbrk        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:
        !            43: #include <sys/param.h>
        !            44: #include <sys/systm.h>
        !            45: #include <sys/types.h>
        !            46: #include <sys/conf.h>
        !            47: #include <sys/file.h>
        !            48: #include <sys/device.h>
        !            49: #include <sys/kernel.h>
        !            50: #include <sys/kthread.h>
        !            51: #include <sys/malloc.h>
        !            52: #include <sys/mutex.h>
        !            53:
        !            54: #include <dev/pcmcia/pcmciachip.h>
        !            55: #include <dev/pcmcia/pcmciavar.h>
        !            56:
        !            57: #include <arm/sa11x0/sa11x0_reg.h>
        !            58: #include <arm/sa11x0/sa11x0_var.h>
        !            59: #include <arm/sa11x0/sa1111_reg.h>
        !            60: #include <arm/sa11x0/sa11x1_var.h>
        !            61: #include <arm/sa11x0/sa11x1_pcicreg.h>
        !            62: #include <arm/sa11x0/sa11xx_pcicvar.h>
        !            63: #include <arm/sa11x0/sa11x1_pcicvar.h>
        !            64:
        !            65: //#include "jpcic.h"
        !            66:
        !            67: static int     sacpcic_jornada_match(struct device *, void *, void *);
        !            68: static void    sacpcic_jornada_attach(struct device *, struct device *, void *);
        !            69:
        !            70: static void    j720_socket_setup(struct sapcic_socket *);
        !            71: static void    j720_set_power(struct sapcic_socket *, int);
        !            72:
        !            73: static struct sapcic_tag j720_sacpcic_functions = {
        !            74:        sacpcic_read,
        !            75:        sacpcic_write,
        !            76:        j720_set_power,
        !            77:        sacpcic_clear_intr,
        !            78:        sacpcic_intr_establish,
        !            79:        sacpcic_intr_disestablish
        !            80: };
        !            81:
        !            82: #if 0
        !            83: static int j720_power_capability[] = {
        !            84:        SAPCIC_POWER_5V | SAPCIC_POWER_3V, SAPCIC_POWER_3V
        !            85: };
        !            86: #endif
        !            87:
        !            88: /*
        !            89:  * Autoconf glue.
        !            90:  */
        !            91: struct cfattach        sacpcic_jornada_ca = {
        !            92:        sizeof(struct sacpcic_softc),
        !            93:        sacpcic_jornada_match,
        !            94:        sacpcic_jornada_attach,
        !            95:        NULL,
        !            96:        NULL
        !            97: };
        !            98:
        !            99:
        !           100: static int
        !           101: sacpcic_jornada_match(struct device *parent, void *cdata, void *aux)
        !           102: {
        !           103:
        !           104:        return 1;
        !           105: }
        !           106:
        !           107: static void
        !           108: sacpcic_jornada_attach(struct device *parent, struct device *self, void *aux)
        !           109: {
        !           110:
        !           111:        sacpcic_attach_common((struct sacc_softc *)parent,
        !           112:            (struct sacpcic_softc *)self, aux, j720_socket_setup);
        !           113: }
        !           114:
        !           115: static void
        !           116: j720_socket_setup(struct sapcic_socket *sp)
        !           117: {
        !           118:        /* XXX */
        !           119:
        !           120:        sp->power_capability = SAPCIC_POWER_5V;
        !           121:
        !           122:        sp->pcictag = &j720_sacpcic_functions;
        !           123: }
        !           124:
        !           125: static void
        !           126: j720_set_power(struct sapcic_socket *so, int arg)
        !           127: {
        !           128:        int newval, oldval, s;
        !           129:        struct sacc_softc *sc = so->pcictag_cookie;
        !           130:
        !           131:        /* XXX this isn't well confirmed. DANGER DANGER */
        !           132:        switch (arg) {
        !           133:        case SAPCIC_POWER_OFF:
        !           134:                newval = 0;
        !           135:                break;
        !           136:        case SAPCIC_POWER_3V:
        !           137:                newval = 2;
        !           138:                break;
        !           139:        case SAPCIC_POWER_5V:
        !           140:                newval = 1;
        !           141:                break;
        !           142:        default:
        !           143:                panic("j720_set_power: bogus arg (%d)", arg);
        !           144:        }
        !           145:
        !           146:        s = splbio();
        !           147:        oldval = bus_space_read_4(sc->sc_bust, sc->sc_ioh, SACCGPIOA_DVR);
        !           148:        printf("j720_set_power: bus_space_read_4\n");
        !           149:
        !           150:        switch (so->socket) {
        !           151:        case 0:
        !           152:                newval = newval | (oldval & 0xc);
        !           153:                break;
        !           154:        case 1:
        !           155:                newval = (newval << 2) | (oldval & 3);
        !           156:                break;
        !           157:        default:
        !           158:                splx(s);
        !           159:                panic("j720_set_power: bogus socket (%d)", so->socket);
        !           160:        }
        !           161:        bus_space_write_4(sc->sc_bust, sc->sc_ioh, SACCGPIOA_DVR, newval);
        !           162:        printf("j720_set_power: bus_space_write_4\n");
        !           163:
        !           164:        splx(s);
        !           165: }

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