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Annotation of sys/arch/jornada/stand/boot/pciide.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: pciide.c,v 1.3 2006/07/30 20:46:30 drahn Exp $        */
        !             2: /*     $NetBSD: pciide.c,v 1.5 2005/12/11 12:17:06 christos Exp $      */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 2003 The NetBSD Foundation, Inc.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. All advertising materials mentioning features or use of this software
        !            17:  *    must display the following acknowledgement:
        !            18:  *        This product includes software developed by the NetBSD
        !            19:  *        Foundation, Inc. and its contributors.
        !            20:  * 4. Neither the name of The NetBSD Foundation nor the names of its
        !            21:  *    contributors may be used to endorse or promote products derived
        !            22:  *    from this software without specific prior written permission.
        !            23:  *
        !            24:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
        !            25:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
        !            26:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
        !            27:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
        !            28:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        !            29:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        !            30:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        !            31:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        !            32:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            33:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            34:  * POSSIBILITY OF SUCH DAMAGE.
        !            35:  */
        !            36:
        !            37: #include <sys/types.h>
        !            38:
        !            39: #include "libsa.h"
        !            40: #include "wdvar.h"
        !            41:
        !            42: u_int32_t wdc_base_addr = 0;
        !            43:
        !            44: int
        !            45: pciide_init(struct wdc_channel *chp, u_int chan)
        !            46: {
        !            47:        u_int32_t cmdreg, ctlreg;
        !            48:        int i;
        !            49:
        !            50:        /*
        !            51:         * two channels per chip, one drive per channel
        !            52:         */
        !            53:        if (chan >= PCIIDE_NUM_CHANNELS || wdc_base_addr == 0)
        !            54:                return (ENXIO);
        !            55:        chp->ndrives = 1;
        !            56:
        !            57:        DPRINTF(("[pciide] channel: %d\n", chan));
        !            58:
        !            59:        /*
        !            60:         * XXX map?
        !            61:         */
        !            62:        cmdreg = wdc_base_addr + chan * 0x10;
        !            63:        ctlreg = wdc_base_addr+0x8 + chan * 0x10;
        !            64:
        !            65:        /* set up cmd regsiters */
        !            66:        chp->c_cmdbase = (u_int8_t *)cmdreg;
        !            67:        chp->c_data = (u_int16_t *)(cmdreg + wd_data);
        !            68:        for (i = 0; i < WDC_NPORTS; i++)
        !            69:                chp->c_cmdreg[i] = chp->c_cmdbase + i;
        !            70:        /* set up shadow registers */
        !            71:        chp->c_cmdreg[wd_status]   = chp->c_cmdreg[wd_command];
        !            72:        chp->c_cmdreg[wd_features] = chp->c_cmdreg[wd_precomp];
        !            73:        /* set up ctl registers */
        !            74:        chp->c_ctlbase = (u_int8_t *)ctlreg;
        !            75:
        !            76:        return (0);
        !            77: }