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155 lines
4.0 KiB
C
155 lines
4.0 KiB
C
/* $NetBSD: nbpmci.c,v 1.2 2012/01/21 19:44:29 nonaka Exp $ */
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/*-
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* Copyright (C) 2007 NONAKA Kimihiro <nonaka@netbsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: nbpmci.c,v 1.2 2012/01/21 19:44:29 nonaka Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#include <machine/platid.h>
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#include <machine/platid_mask.h>
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#include <arm/xscale/pxa2x0var.h>
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#include <arm/xscale/pxa2x0_gpio.h>
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#include <arm/xscale/pxa2x0_mci.h>
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#include <dev/sdmmc/sdmmcreg.h>
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static int pxamci_match(device_t, cfdata_t, void *);
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static void pxamci_attach(device_t, device_t, void *);
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static int nbpmci_intr(void *);
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static uint32_t nbpmci_get_ocr(void *);
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static int nbpmci_set_power(void *, uint32_t);
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static int nbpmci_card_detect(void *);
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static int nbpmci_write_protect(void *);
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CFATTACH_DECL_NEW(nbpmci, sizeof(struct pxamci_softc),
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pxamci_match, pxamci_attach, NULL, NULL);
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/* ARGSUSED */
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static int
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pxamci_match(device_t parent, cfdata_t match, void *aux)
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{
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struct pxaip_attach_args *pxa = aux;
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if (strcmp(pxa->pxa_name, match->cf_name) != 0 ||
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!platid_match(&platid, &platid_mask_MACH_PSIONTEKLOGIX_NETBOOK_PRO))
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return 0;
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pxa->pxa_size = PXA2X0_MMC_SIZE;
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return 1;
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}
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/* ARGSUSED */
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static void
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pxamci_attach(device_t parent, device_t self, void *aux)
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{
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struct pxamci_softc *sc = device_private(self);
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struct pxaip_attach_args *pxa = aux;
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void *ih;
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pxa2x0_gpio_set_function(9, GPIO_IN);
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ih = pxa2x0_gpio_intr_establish(9, IST_EDGE_BOTH, IPL_BIO,
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nbpmci_intr, sc);
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if (ih == NULL) {
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aprint_error_dev(self,
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"unable to establish card detect interrupt\n");
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return;
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}
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sc->sc_tag.cookie = sc;
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sc->sc_tag.get_ocr = nbpmci_get_ocr;
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sc->sc_tag.set_power = nbpmci_set_power;
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sc->sc_tag.card_detect = nbpmci_card_detect;
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sc->sc_tag.write_protect = nbpmci_write_protect;
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sc->sc_caps = 0;
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if (pxamci_attach_sub(self, pxa))
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aprint_error_dev(self, "unable to attach MMC controller\n");
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if (!pmf_device_register(self, NULL, NULL))
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aprint_error_dev(self, "couldn't establish power handler\n");
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}
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static int
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nbpmci_intr(void *arg)
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{
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struct pxamci_softc *sc = (struct pxamci_softc *)arg;
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pxa2x0_gpio_clear_intr(9);
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pxamci_card_detect_event(sc);
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return 1;
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}
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/* ARGSUSED */
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static uint32_t
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nbpmci_get_ocr(void *arg)
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{
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return MMC_OCR_3_2V_3_3V|MMC_OCR_3_3V_3_4V;
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}
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/* ARGSUSED */
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static int
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nbpmci_set_power(void *arg, uint32_t ocr)
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{
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// nbp_pcon_command(I2C_SETMMCPOWER, vdd_bits ? 1 : 0, 0, NULL);
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return 0;
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}
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/*
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* Return non-zero if the card is currently inserted.
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*/
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/* ARGSUSED */
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static int
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nbpmci_card_detect(void *arg)
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{
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if (pxa2x0_gpio_get_bit(9))
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return 0;
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return 1;
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}
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/*
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* Return non-zero if the card is currently write-protected.
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*/
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/* ARGSUSED */
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static int
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nbpmci_write_protect(void *arg)
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{
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return 0;
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}
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