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Annotation of sys/arch/zaurus/dev/scoop_mmc.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: scoop_mmc.c,v 1.1 2007/03/18 20:53:10 uwe Exp $       */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2007 Uwe Stuehler <uwe@openbsd.org>
        !             5:  *
        !             6:  * Permission to use, copy, modify, and distribute this software for any
        !             7:  * purpose with or without fee is hereby granted, provided that the above
        !             8:  * copyright notice and this permission notice appear in all copies.
        !             9:  *
        !            10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            17:  */
        !            18:
        !            19: /* Attachment driver for pxammc(4) on Zaurus */
        !            20:
        !            21: #include <sys/param.h>
        !            22: #include <sys/device.h>
        !            23: #include <sys/systm.h>
        !            24:
        !            25: #include <dev/sdmmc/sdmmcreg.h>
        !            26:
        !            27: #include <arch/arm/xscale/pxammcvar.h>
        !            28: #include <arch/zaurus/dev/zaurus_scoopvar.h>
        !            29:
        !            30: int    scoop_mmc_match(struct device *, void *, void *);
        !            31: void   scoop_mmc_attach(struct device *, struct device *, void *);
        !            32:
        !            33: struct cfattach pxammc_scoop_ca = {
        !            34:        sizeof(struct pxammc_softc), scoop_mmc_match,
        !            35:        scoop_mmc_attach
        !            36: };
        !            37:
        !            38: u_int32_t scoop_mmc_get_ocr(void *);
        !            39: int      scoop_mmc_set_power(void *, u_int32_t);
        !            40:
        !            41: int
        !            42: scoop_mmc_match(struct device *parent, void *match, void *aux)
        !            43: {
        !            44:        return pxammc_match();
        !            45: }
        !            46:
        !            47: void
        !            48: scoop_mmc_attach(struct device *parent, struct device *self, void *aux)
        !            49: {
        !            50:        struct pxammc_softc *sc = (struct pxammc_softc *)self;
        !            51:
        !            52:        sc->tag.cookie = (void *)sc;
        !            53:        sc->tag.get_ocr = scoop_mmc_get_ocr;
        !            54:        sc->tag.set_power = scoop_mmc_set_power;
        !            55:
        !            56:        pxammc_attach(sc, aux);
        !            57: }
        !            58:
        !            59: u_int32_t
        !            60: scoop_mmc_get_ocr(void *cookie)
        !            61: {
        !            62:        return MMC_OCR_3_2V_3_3V | MMC_OCR_3_3V_3_4V;
        !            63: }
        !            64:
        !            65: int
        !            66: scoop_mmc_set_power(void *cookie, u_int32_t ocr)
        !            67: {
        !            68:        if (ISSET(ocr, MMC_OCR_3_2V_3_3V | MMC_OCR_3_3V_3_4V)) {
        !            69:                scoop_set_sdmmc_power(1);
        !            70:                return 0;
        !            71:        } else if (ocr != 0) {
        !            72:                printf("scoop_mmc_set_power: unsupported OCR (%#x)\n", ocr);
        !            73:                return EINVAL;
        !            74:        } else {
        !            75:                scoop_set_sdmmc_power(0);
        !            76:                return 0;
        !            77:        }
        !            78: }