618 lines
15 KiB
C
618 lines
15 KiB
C
/* $NetBSD: cardbus.c,v 1.6 1999/10/29 07:29:08 haya Exp $ */
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/*
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* Copyright (c) 1997, 1998 and 1999
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* HAYAKAWA Koichi. 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by HAYAKAWA Koichi.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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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
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opt_cardbus.h"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/syslog.h>
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#include <machine/bus.h>
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#include <dev/cardbus/cardbusvar.h>
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#include <dev/cardbus/pccardcis.h>
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#include <dev/pci/pcivar.h> /* XXX */
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#include <dev/pci/pcireg.h> /* XXX */
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#if defined CARDBUS_DEBUG
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#define STATIC
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#define DPRINTF(a) printf a
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#define DDELAY(x) delay((x)*1000*1000)
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#else
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#define STATIC static
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#define DPRINTF(a)
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#endif
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STATIC void cardbusattach __P((struct device *, struct device *, void *));
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/* STATIC int cardbusprint __P((void *, const char *)); */
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int cardbus_attach_card __P((struct cardbus_softc *));
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#if !defined __BROKEN_INDIRECT_CONFIG
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STATIC int cardbusmatch __P((struct device *, struct cfdata *, void *));
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static int cardbussubmatch __P((struct device *, struct cfdata *, void *));
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#else
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STATIC int cardbusmatch __P((struct device *, void *, void *));
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static int cardbussubmatch __P((struct device *, void *, void *));
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#endif
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static int cardbusprint __P((void *, const char *));
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static int decode_tuples __P((u_int8_t *, int));
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struct cfattach cardbus_ca = {
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sizeof(struct cardbus_softc), cardbusmatch, cardbusattach
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};
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#ifndef __NetBSD_Version__
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struct cfdriver cardbus_cd = {
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NULL, "cardbus", DV_DULL
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};
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#endif
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STATIC int
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#if defined __BROKEN_INDIRECT_CONFIG
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cardbusmatch(parent, match, aux)
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struct device *parent;
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void *match;
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void *aux;
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#else
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cardbusmatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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#endif
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{
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#if defined __BROKEN_INDIRECT_CONFIG
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struct cfdata *cf = match;
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#endif
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struct cbslot_attach_args *cba = aux;
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if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) {
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DPRINTF(("cardbusmatch: busname differs %s <=> %s\n",
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cba->cba_busname, cf->cf_driver->cd_name));
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return 0;
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}
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#if 0
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/* which function? */
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if (cf->cbslotcf_func != CBSLOT_UNK_FUNC &&
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cf->cbslotcf_func != cba->cba_function) {
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DPRINTF(("cardbusmatch: function differs %d <=> %d\n",
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cf->cbslotcf_func, cba->cba_function));
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return 0;
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}
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#endif
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if (cba->cba_function < 0 || cba->cba_function > 255) {
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return 0;
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}
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return 1;
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}
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STATIC void
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cardbusattach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct cardbus_softc *sc = (void *)self;
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struct cbslot_attach_args *cba = aux;
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int cdstatus;
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sc->sc_bus = cba->cba_bus;
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sc->sc_device = cba->cba_function;
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sc->sc_intrline = cba->cba_intrline;
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sc->sc_cacheline = cba->cba_cacheline;
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sc->sc_lattimer = cba->cba_lattimer;
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printf(": bus %d device %d", sc->sc_bus, sc->sc_device);
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printf(" cacheline 0x%x, lattimer 0x%x\n", sc->sc_cacheline,sc->sc_lattimer);
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sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */
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sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */
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sc->sc_dmat = cba->cba_dmat; /* DMA tag */
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sc->sc_cc = cba->cba_cc;
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sc->sc_cf = cba->cba_cf;
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#if rbus
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sc->sc_rbus_iot = cba->cba_rbus_iot;
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sc->sc_rbus_memt = cba->cba_rbus_memt;
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#endif
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sc->sc_funcs = NULL;
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cdstatus = 0;
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}
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/*
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* int cardbus_attach_card(struct cardbus_softc *sc)
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*
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* This function attaches the card on the slot: turns on power,
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* reads and analyses tuple, sets consifuration index.
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*
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* This function returns the number of recognised device functions.
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* If no functions are recognised, return 0.
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*/
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int
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cardbus_attach_card(sc)
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struct cardbus_softc *sc;
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{
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cardbus_chipset_tag_t cc;
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cardbus_function_tag_t cf;
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int cdstatus;
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cardbustag_t tag;
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cardbusreg_t id, class, cis_ptr;
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cardbusreg_t bhlc;
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u_int8_t tuple[2048];
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int function, nfunction;
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struct cardbus_devfunc **previous_next = &(sc->sc_funcs);
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struct device *csc;
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int no_work_funcs = 0;
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cardbus_devfunc_t ct;
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cc = sc->sc_cc;
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cf = sc->sc_cf;
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DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit));
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/* inspect initial voltage */
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if (0 == (cdstatus = (cf->cardbus_ctrl)(cc, CARDBUS_CD))) {
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DPRINTF(("cardbusattach: no CardBus card on cb%d\n", sc->sc_dev.dv_unit));
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return 0;
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}
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if (cdstatus & CARDBUS_3V_CARD) {
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cf->cardbus_power(cc, CARDBUS_VCC_3V);
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sc->sc_poweron_func = 1; /* function 0 on */
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}
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(cf->cardbus_ctrl)(cc, CARDBUS_RESET);
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function = 0;
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tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function);
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/*
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* Wait until power comes up. Maxmum 500 ms.
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*/
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{
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int i;
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for (i = 0; i < 5; ++i) {
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id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG);
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if (id != 0xffffffff && id != 0) {
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break;
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}
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delay(100*1000); /* or tsleep */
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}
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if (i == 5) {
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return 0;
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}
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}
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bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG);
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if (CARDBUS_LATTIMER(bhlc) < 0x10) {
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bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT);
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bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT);
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cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc);
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}
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nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1;
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/*
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* XXX multi-function card
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*
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* I don't know how to process CIS information for
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* multi-function cards.
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*/
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id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG);
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class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG);
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cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG);
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DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, CIS 0x%x\n",
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CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr));
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bzero(tuple, 2048);
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if (CARDBUS_CIS_ASI_TUPLE == (CARDBUS_CIS_ASI(cis_ptr))) {
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/* Tuple is in Cardbus config space */
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int i = cis_ptr & CARDBUS_CIS_ADDRMASK;
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int j = 0;
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for (; i < 0xff; i += 4) {
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u_int32_t e = (cf->cardbus_conf_read)(cc, tag, i);
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tuple[j] = 0xff & e;
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e >>= 8;
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tuple[j + 1] = 0xff & e;
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e >>= 8;
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tuple[j + 2] = 0xff & e;
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e >>= 8;
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tuple[j + 3] = 0xff & e;
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j += 4;
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}
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} else if (CARDBUS_CIS_ASI(cis_ptr) <= CARDBUS_CIS_ASI_BAR5) {
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/* int bar = CARDBUS_CIS_ASI_BAR(cis_ptr);*/
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}
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decode_tuples(tuple, 2048);
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{
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struct cardbus_attach_args ca;
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if (NULL == (ct = (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc),
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M_DEVBUF, M_NOWAIT))) {
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panic("no room for cardbus_tag");
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}
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ct->ct_cc = sc->sc_cc;
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ct->ct_cf = sc->sc_cf;
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ct->ct_bus = sc->sc_bus;
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ct->ct_dev = sc->sc_device;
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ct->ct_func = function;
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ct->ct_sc = sc;
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ct->ct_next = NULL;
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*previous_next = ct;
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ca.ca_unit = sc->sc_dev.dv_unit;
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ca.ca_ct = ct;
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ca.ca_iot = sc->sc_iot;
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ca.ca_memt = sc->sc_memt;
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ca.ca_dmat = sc->sc_dmat;
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ca.ca_tag = tag;
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ca.ca_device = sc->sc_device;
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ca.ca_function = function;
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ca.ca_id = id;
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ca.ca_class = class;
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ca.ca_intrline = sc->sc_intrline;
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if (NULL == (csc = config_found_sm((void *)sc, &ca, cardbusprint, cardbussubmatch))) {
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/* do not match */
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cf->cardbus_power(cc, CARDBUS_VCC_0V);
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sc->sc_poweron_func = 0; /* no functions on */
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free(cc, M_DEVBUF);
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} else {
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/* found */
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previous_next = &(ct->ct_next);
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ct->ct_device = csc;
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++no_work_funcs;
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}
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}
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return no_work_funcs;
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}
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static int
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#ifdef __BROKEN_INDIRECT_CONFIG
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cardbussubmatch(parent, match, aux)
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#else
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cardbussubmatch(parent, cf, aux)
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#endif
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struct device *parent;
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#ifdef __BROKEN_INDIRECT_CONFIG
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void *match;
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#else
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struct cfdata *cf;
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#endif
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void *aux;
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{
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#ifdef __BROKEN_INDIRECT_CONFIG
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struct cfdata *cf = match;
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#endif
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struct cardbus_attach_args *ca = aux;
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if (cf->cardbuscf_dev != CARDBUS_UNK_DEV &&
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cf->cardbuscf_dev != ca->ca_unit) {
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return 0;
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}
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if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION &&
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cf->cardbuscf_function != ca->ca_function) {
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return 0;
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}
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return ((*cf->cf_attach->ca_match)(parent, cf, aux));
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}
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static int
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cardbusprint(aux, pnp)
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void *aux;
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const char *pnp;
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{
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register struct cardbus_attach_args *ca = aux;
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char devinfo[256];
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if (pnp) {
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pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo);
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printf("%s at %s", devinfo, pnp);
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}
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printf(" dev %d function %d", ca->ca_device, ca->ca_function);
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return UNCONF;
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}
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/*
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* void *cardbus_intr_establish(cc, cf, irq, level, func, arg)
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* Interrupt handler of pccard.
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* args:
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* cardbus_chipset_tag_t *cc
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* int irq:
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*/
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void *
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cardbus_intr_establish(cc, cf, irq, level, func, arg)
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cardbus_chipset_tag_t cc;
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cardbus_function_tag_t cf;
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cardbus_intr_handle_t irq;
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int level;
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int (*func) __P((void *));
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void *arg;
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{
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DPRINTF(("- cardbus_intr_establish: irq %d\n", irq));
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return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg);
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}
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/*
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* void cardbus_intr_disestablish(cc, cf, handler)
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* Interrupt handler of pccard.
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* args:
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* cardbus_chipset_tag_t *cc
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*/
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void
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cardbus_intr_disestablish(cc, cf, handler)
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cardbus_chipset_tag_t cc;
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cardbus_function_tag_t cf;
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void *handler;
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{
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DPRINTF(("- pccard_intr_disestablish\n"));
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(*cf->cardbus_intr_disestablish)(cc, handler);
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return;
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}
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/*
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* int cardbus_function_enable(cardbus_devfunc_t ct)
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*
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* This function enables a function on a card. When no power is
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* applied on the card, power will be applied on it.
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*/
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int
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cardbus_function_enable(ct)
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cardbus_devfunc_t ct;
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{
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struct cardbus_softc *sc = ct->ct_sc;
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int func = ct->ct_func;
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cardbus_chipset_tag_t cc = sc->sc_cc;
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cardbus_function_tag_t cf = sc->sc_cf;
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cardbusreg_t command;
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cardbustag_t tag;
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DPRINTF(("entering cardbus_function_enable... "));
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/* entering critical area */
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if (sc->sc_poweron_func == 0) {
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/* no functions are enabled */
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(*cf->cardbus_power)(cc, CARDBUS_VCC_3V); /* XXX: sc_vold should be used */
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(*cf->cardbus_ctrl)(cc, CARDBUS_RESET);
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}
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sc->sc_poweron_func |= (1 << func);
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/* exiting critical area */
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tag = Cardbus_make_tag(ct);
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command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG);
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command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */
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cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command);
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Cardbus_free_tag(ct, tag);
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DPRINTF(("%x\n", sc->sc_poweron_func));
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return 0;
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}
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/*
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* int cardbus_function_disable(cardbus_devfunc_t ct)
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*
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* This function disable a function on a card. When no functions are
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* enabled, it turns off the power.
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*/
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int
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cardbus_function_disable(ct)
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cardbus_devfunc_t ct;
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{
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struct cardbus_softc *sc = ct->ct_sc;
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int func = ct->ct_func;
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cardbus_chipset_tag_t cc = sc->sc_cc;
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cardbus_function_tag_t cf = sc->sc_cf;
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DPRINTF(("entering cardbus_enable_disable... "));
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sc->sc_poweron_func &= ~(1 << func);
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DPRINTF(("%x\n", sc->sc_poweron_func));
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if (sc->sc_poweron_func == 0) {
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/* power-off because no functions are enabled */
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(*cf->cardbus_power)(cc, CARDBUS_VCC_0V);
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}
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return 0;
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}
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/*
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* below this line, there are some functions for decoding tuples.
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* They should go out from this file.
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*/
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static u_int8_t *decode_tuple __P((u_int8_t *));
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#ifdef CARDBUS_DEBUG
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static char *tuple_name __P((int));
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#endif
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static int
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decode_tuples(tuple, buflen)
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u_int8_t *tuple;
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int buflen;
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{
|
|
u_int8_t *tp = tuple;
|
|
|
|
if (CISTPL_LINKTARGET != *tuple) {
|
|
DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple));
|
|
return 0;
|
|
}
|
|
|
|
while (NULL != (tp = decode_tuple(tp))) {
|
|
if (tuple + buflen < tp) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
static u_int8_t *
|
|
decode_tuple(tuple)
|
|
u_int8_t *tuple;
|
|
{
|
|
u_int8_t type;
|
|
u_int8_t len;
|
|
#ifdef CARDBUS_DEBUG
|
|
int i;
|
|
#endif
|
|
|
|
type = tuple[0];
|
|
len = tuple[1] + 2;
|
|
|
|
#ifdef CARDBUS_DEBUG
|
|
printf("tuple: %s len %d\n", tuple_name(type), len);
|
|
#endif
|
|
if (CISTPL_END == type) {
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef CARDBUS_DEBUG
|
|
for (i = 0; i < len; ++i) {
|
|
if (i % 16 == 0) {
|
|
printf(" 0x%2x:", i);
|
|
}
|
|
printf(" %x",tuple[i]);
|
|
if (i % 16 == 15) {
|
|
printf("\n");
|
|
}
|
|
}
|
|
if (i % 16 != 0) {
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
|
|
return tuple + len;
|
|
}
|
|
|
|
|
|
#ifdef CARDBUS_DEBUG
|
|
static char *
|
|
tuple_name(type)
|
|
int type;
|
|
{
|
|
static char *tuple_name_s [] = {
|
|
"TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */
|
|
"CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */
|
|
"Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */
|
|
"Reserved", "Reserved", "Reserved", "Reserved", /* C-F */
|
|
"CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */
|
|
"NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A",
|
|
"JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY",
|
|
"DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A",
|
|
"MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */
|
|
"Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */
|
|
"Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */
|
|
"Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */
|
|
"Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */
|
|
"Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */
|
|
"Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */
|
|
"Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */
|
|
"VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER",
|
|
"DATE", "BATTERY", "ORG"
|
|
};
|
|
#define NAME_LEN(x) (sizeof x / sizeof(x[0]))
|
|
|
|
if (type > 0 && type < NAME_LEN(tuple_name_s)) {
|
|
return tuple_name_s[type];
|
|
} else if (0xff == type) {
|
|
return "END";
|
|
} else {
|
|
return "Reserved";
|
|
}
|
|
}
|
|
#endif
|