summaryrefslogtreecommitdiff
path: root/sys/dev/cardbus/cardbus.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/dev/cardbus/cardbus.c')
-rw-r--r--sys/dev/cardbus/cardbus.c934
1 files changed, 934 insertions, 0 deletions
diff --git a/sys/dev/cardbus/cardbus.c b/sys/dev/cardbus/cardbus.c
new file mode 100644
index 00000000000..20546bf90de
--- /dev/null
+++ b/sys/dev/cardbus/cardbus.c
@@ -0,0 +1,934 @@
+/* $OpenBSD: cardbus.c,v 1.1 2000/04/08 05:50:52 aaron Exp $ */
+/* $NetBSD: cardbus.c,v 1.24 2000/04/02 19:11:37 mycroft Exp $ */
+
+/*
+ * Copyright (c) 1997, 1998, 1999 and 2000
+ * HAYAKAWA Koichi. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by HAYAKAWA Koichi.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+#include <sys/syslog.h>
+#include <sys/proc.h>
+
+#include <machine/bus.h>
+
+#include <dev/cardbus/cardbusvar.h>
+#include <dev/cardbus/cardbusdevs.h>
+
+#include <dev/cardbus/cardbus_exrom.h>
+
+#include <dev/pci/pcivar.h> /* XXX */
+#include <dev/pci/pcireg.h> /* XXX */
+
+#include <dev/pcmcia/pcmciareg.h>
+
+#if defined CARDBUS_DEBUG
+#define STATIC
+#define DPRINTF(a) printf a
+#else
+#define STATIC static
+#define DPRINTF(a)
+#endif
+
+extern int cold;
+
+STATIC void cardbusattach __P((struct device *, struct device *, void *));
+/* STATIC int cardbusprint __P((void *, const char *)); */
+int cardbus_attach_card __P((struct cardbus_softc *));
+
+STATIC int cardbusmatch __P((struct device *, void *, void *));
+static int cardbussubmatch __P((struct device *, void *, void *));
+static int cardbusprint __P((void *, const char *));
+
+typedef void (*tuple_decode_func)(u_int8_t*, int, void*);
+
+static int decode_tuples __P((u_int8_t *, int, tuple_decode_func, void*));
+#ifdef CARDBUS_DEBUG
+static void print_tuple __P((u_int8_t*, int, void*));
+#endif
+
+static int cardbus_read_tuples __P((struct cardbus_attach_args *,
+ cardbusreg_t, u_int8_t *, size_t));
+
+static void enable_function __P((struct cardbus_softc *, int, int));
+static void disable_function __P((struct cardbus_softc *, int));
+
+
+struct cfattach cardbus_ca = {
+ sizeof(struct cardbus_softc), cardbusmatch, cardbusattach
+};
+
+#ifndef __NetBSD_Version__
+struct cfdriver cardbus_cd = {
+ NULL, "cardbus", DV_DULL
+};
+#endif
+
+
+STATIC int
+cardbusmatch(parent, match, aux)
+ struct device *parent;
+ void *match;
+ void *aux;
+{
+ struct cfdata *cf = match;
+ struct cbslot_attach_args *cba = aux;
+
+ if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) {
+ DPRINTF(("cardbusmatch: busname differs %s <=> %s\n",
+ cba->cba_busname, cf->cf_driver->cd_name));
+ return 0;
+ }
+
+ return 1;
+}
+
+
+
+STATIC void
+cardbusattach(parent, self, aux)
+ struct device *parent;
+ struct device *self;
+ void *aux;
+{
+ struct cardbus_softc *sc = (void *)self;
+ struct cbslot_attach_args *cba = aux;
+ int cdstatus;
+
+ sc->sc_bus = cba->cba_bus;
+ sc->sc_device = 0;
+ sc->sc_intrline = cba->cba_intrline;
+ sc->sc_cacheline = cba->cba_cacheline;
+ sc->sc_lattimer = cba->cba_lattimer;
+
+ printf(": bus %d device %d", sc->sc_bus, sc->sc_device);
+ printf(" cacheline 0x%x, lattimer 0x%x\n", sc->sc_cacheline,sc->sc_lattimer);
+
+ sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */
+ sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */
+ sc->sc_dmat = cba->cba_dmat; /* DMA tag */
+ sc->sc_cc = cba->cba_cc;
+ sc->sc_cf = cba->cba_cf;
+
+#if rbus
+ sc->sc_rbus_iot = cba->cba_rbus_iot;
+ sc->sc_rbus_memt = cba->cba_rbus_memt;
+#endif
+
+ sc->sc_funcs = NULL;
+
+ cdstatus = 0;
+}
+
+static int
+cardbus_read_tuples(ca, cis_ptr, tuples, len)
+ struct cardbus_attach_args *ca;
+ cardbusreg_t cis_ptr;
+ u_int8_t *tuples;
+ size_t len;
+{
+ struct cardbus_softc *sc = ca->ca_ct->ct_sc;
+ cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc;
+ cardbus_function_tag_t cf = ca->ca_ct->ct_cf;
+ cardbustag_t tag = ca->ca_tag;
+ cardbusreg_t command;
+ int found = 0;
+
+ int i, j;
+ int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK;
+ bus_space_handle_t bar_memh;
+ bus_size_t bar_size;
+ bus_addr_t bar_addr;
+
+ int reg;
+
+ memset(tuples, 0, len);
+
+ cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK;
+
+ switch(cardbus_space) {
+ case CARDBUS_CIS_ASI_TUPLE:
+ DPRINTF(("%s: reading CIS data from configuration space\n",
+ sc->sc_dev.dv_xname));
+ for (i = cis_ptr, j = 0; i < 0xff; i += 4) {
+ u_int32_t e = (cf->cardbus_conf_read)(cc, tag, i);
+ tuples[j] = 0xff & e;
+ e >>= 8;
+ tuples[j + 1] = 0xff & e;
+ e >>= 8;
+ tuples[j + 2] = 0xff & e;
+ e >>= 8;
+ tuples[j + 3] = 0xff & e;
+ j += 4;
+ }
+ found++;
+ break;
+
+ case CARDBUS_CIS_ASI_BAR0:
+ case CARDBUS_CIS_ASI_BAR1:
+ case CARDBUS_CIS_ASI_BAR2:
+ case CARDBUS_CIS_ASI_BAR3:
+ case CARDBUS_CIS_ASI_BAR4:
+ case CARDBUS_CIS_ASI_BAR5:
+ case CARDBUS_CIS_ASI_ROM:
+ if(cardbus_space == CARDBUS_CIS_ASI_ROM) {
+ reg = CARDBUS_ROM_REG;
+ DPRINTF(("%s: reading CIS data from ROM\n",
+ sc->sc_dev.dv_xname));
+ } else {
+ reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4;
+ DPRINTF(("%s: reading CIS data from BAR%d\n",
+ sc->sc_dev.dv_xname, cardbus_space - 1));
+ }
+
+ /* XXX zero register so mapreg_map doesn't get confused by old
+ contents */
+ cardbus_conf_write(cc, cf, tag, reg, 0);
+ if(Cardbus_mapreg_map(ca->ca_ct, reg,
+ CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
+ 0,
+ NULL, &bar_memh, &bar_addr, &bar_size)) {
+ printf("%s: failed to map memory\n", sc->sc_dev.dv_xname);
+ return 1;
+ }
+
+
+ if(cardbus_space == CARDBUS_CIS_ASI_ROM) {
+ cardbusreg_t exrom;
+ int save;
+ struct cardbus_rom_image_head rom_image;
+ struct cardbus_rom_image *p;
+
+ save = splhigh();
+ /* enable rom address decoder */
+ exrom = cardbus_conf_read(cc, cf, tag, reg);
+ cardbus_conf_write(cc, cf, tag, reg, exrom | 1);
+
+ command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG);
+ cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG,
+ command | CARDBUS_COMMAND_MEM_ENABLE);
+
+ if(cardbus_read_exrom(ca->ca_memt, bar_memh, &rom_image))
+ goto out;
+
+ for(p = SIMPLEQ_FIRST(&rom_image);
+ p;
+ p = SIMPLEQ_NEXT(p, next)) {
+ if(p->rom_image == CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) {
+ bus_space_read_region_1(p->romt, p->romh,
+ CARDBUS_CIS_ADDR(cis_ptr),
+ tuples, 256);
+ found++;
+ }
+ break;
+ }
+ while((p = SIMPLEQ_FIRST(&rom_image)) != NULL) {
+ SIMPLEQ_REMOVE_HEAD(&rom_image, p, next);
+ free(p, M_DEVBUF);
+ }
+ out:
+ exrom = cardbus_conf_read(cc, cf, tag, reg);
+ cardbus_conf_write(cc, cf, tag, reg, exrom & ~1);
+ splx(save);
+ } else {
+ command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG);
+ cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG,
+ command | CARDBUS_COMMAND_MEM_ENABLE);
+ /* XXX byte order? */
+ bus_space_read_region_1(ca->ca_memt, bar_memh,
+ cis_ptr, tuples, 256);
+ found++;
+ }
+ command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG);
+ cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG,
+ command & ~CARDBUS_COMMAND_MEM_ENABLE);
+ cardbus_conf_write(cc, cf, tag, reg, 0);
+#if 0
+ /* XXX unmap memory */
+ (*ca->ca_ct->ct_cf->cardbus_space_free)(ca->ca_ct,
+ ca->ca_ct->ct_sc->sc_rbus_memt,
+ bar_memh, bar_size);
+#endif
+ break;
+
+#ifdef DIAGNOSTIC
+ default:
+ panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, cardbus_space);
+#endif
+ }
+ return !found;
+}
+
+static void
+parse_tuple(u_int8_t *tuple, int len, void *data)
+{
+#ifdef CARDBUS_DEBUG
+ static const char func[] = "parse_tuple";
+#endif
+ struct cardbus_cis_info *cis = data;
+ int bar_index;
+ int i;
+ char *p;
+ switch(tuple[0]) {
+ case PCMCIA_CISTPL_MANFID:
+ if(tuple[1] != 5) {
+ DPRINTF(("%s: wrong length manufacturer id (%d)\n",
+ func, tuple[1]));
+ break;
+ }
+ cis->manufacturer = tuple[2] | (tuple[3] << 8);
+ cis->product = tuple[4] | (tuple[5] << 8);
+ break;
+ case PCMCIA_CISTPL_VERS_1:
+ bcopy(tuple + 2, cis->cis1_info_buf, tuple[1]);
+ i = 0;
+ p = cis->cis1_info_buf + 2;
+ while(i < sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) {
+ cis->cis1_info[i++] = p;
+ while(*p != '\0' && *p != '\xff')
+ p++;
+ if(*p == '\xff')
+ break;
+ p++;
+ }
+ break;
+ case PCMCIA_CISTPL_BAR:
+ if(tuple[1] != 6) {
+ DPRINTF(("%s: BAR with short length (%d)\n", func, tuple[1]));
+ break;
+ }
+ bar_index = tuple[2] & 7;
+ if(bar_index == 0) {
+ DPRINTF(("%s: invalid ASI in BAR tuple\n", func));
+ break;
+ }
+ bar_index--;
+ cis->bar[bar_index].flags = tuple[2];
+ cis->bar[bar_index].size = (tuple[4] << 0) |
+ (tuple[5] << 8) |
+ (tuple[6] << 16) |
+ (tuple[7] << 24);
+ break;
+ case PCMCIA_CISTPL_FUNCID:
+ cis->funcid = tuple[2];
+ break;
+
+ case PCMCIA_CISTPL_FUNCE:
+ if(cis->funcid == PCMCIA_FUNCTION_NETWORK && tuple[1] >= 8) {
+ if(tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) {
+ if(tuple[3] > sizeof(cis->funce.network.netid)) {
+ DPRINTF(("%s: unknown network id type (len = %d)\n",
+ func, tuple[3]));
+ } else {
+ cis->funce.network.netid_present = 1;
+ bcopy(tuple + 4, cis->funce.network.netid,
+ tuple[3]);
+ }
+ }
+ }
+ break;
+ }
+}
+
+/*
+ * int cardbus_attach_card(struct cardbus_softc *sc)
+ *
+ * This function attaches the card on the slot: turns on power,
+ * reads and analyses tuple, sets consifuration index.
+ *
+ * This function returns the number of recognised device functions.
+ * If no functions are recognised, return 0.
+ */
+int
+cardbus_attach_card(sc)
+ struct cardbus_softc *sc;
+{
+ cardbus_chipset_tag_t cc;
+ cardbus_function_tag_t cf;
+ int cdstatus;
+ cardbustag_t tag;
+ cardbusreg_t id, class, cis_ptr;
+ cardbusreg_t bhlc;
+ u_int8_t tuple[2048];
+ int function, nfunction;
+ struct cardbus_devfunc **previous_next = &(sc->sc_funcs);
+ struct device *csc;
+ int no_work_funcs = 0;
+ cardbus_devfunc_t ct;
+
+ cc = sc->sc_cc;
+ cf = sc->sc_cf;
+
+ DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit));
+
+ /* inspect initial voltage */
+ if (0 == (cdstatus = (cf->cardbus_ctrl)(cc, CARDBUS_CD))) {
+ DPRINTF(("cardbusattach: no CardBus card on cb%d\n", sc->sc_dev.dv_unit));
+ return 0;
+ }
+
+ enable_function(sc, cdstatus, 8); /* XXX use fake function 8 to
+ keep power on during whole
+ configuration */
+
+ function = 0;
+
+ tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function);
+
+ /*
+ * Wait until power comes up. Maxmum 500 ms.
+ */
+ {
+ int i;
+ for (i = 0; i < 5; ++i) {
+ id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG);
+ if (id != 0xffffffff && id != 0) {
+ break;
+ }
+ if (cold) { /* before kernel thread invoked */
+ delay(100*1000);
+ } else { /* thread context */
+ if (tsleep((void *)sc, PCATCH, "cardbus", hz/10) != EWOULDBLOCK) {
+ break;
+ }
+ }
+ }
+ if (i == 5) {
+ return 0;
+ }
+ }
+
+ bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG);
+ if (CARDBUS_LATTIMER(bhlc) < 0x10) {
+ bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT);
+ bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT);
+ cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc);
+ }
+
+ nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1;
+
+ for(function = 0; function < nfunction; function++) {
+ struct cardbus_attach_args ca;
+
+ tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function);
+
+ id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG);
+ class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG);
+ cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG);
+
+ /* Invalid vendor ID value? */
+ if (CARDBUS_VENDOR(id) == CARDBUS_VENDOR_INVALID) {
+ continue;
+ }
+
+ DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, CIS 0x%x\n",
+ CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr));
+
+ enable_function(sc, cdstatus, function);
+
+ /* clean up every BAR */
+ cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0);
+ cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0);
+ cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0);
+ cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0);
+ cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0);
+ cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0);
+ cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0);
+
+ /*
+ * We need to allocate the ct here, since we might
+ * need it when reading the CIS
+ */
+ if (NULL == (ct = (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc),
+ M_DEVBUF, M_NOWAIT))) {
+ panic("no room for cardbus_tag");
+ }
+
+ ct->ct_cc = sc->sc_cc;
+ ct->ct_cf = sc->sc_cf;
+ ct->ct_bus = sc->sc_bus;
+ ct->ct_dev = sc->sc_device;
+ ct->ct_func = function;
+ ct->ct_sc = sc;
+ ct->ct_next = NULL;
+ *previous_next = ct;
+
+ memset(&ca, 0, sizeof(ca));
+
+ ca.ca_unit = sc->sc_dev.dv_unit;
+ ca.ca_ct = ct;
+
+ ca.ca_iot = sc->sc_iot;
+ ca.ca_memt = sc->sc_memt;
+ ca.ca_dmat = sc->sc_dmat;
+
+ ca.ca_tag = tag;
+ ca.ca_device = sc->sc_device;
+ ca.ca_function = function;
+ ca.ca_id = id;
+ ca.ca_class = class;
+
+ ca.ca_intrline = sc->sc_intrline;
+
+ bzero(tuple, 2048);
+
+ if(cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) {
+ printf("cardbus_attach_card: failed to read CIS\n");
+ } else {
+#ifdef CARDBUS_DEBUG
+ decode_tuples(tuple, 2048, print_tuple, NULL);
+#endif
+ decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis);
+ }
+
+ if (NULL == (csc = config_found_sm((void *)sc, &ca, cardbusprint, cardbussubmatch))) {
+ /* do not match */
+ disable_function(sc, function);
+ free(ct, M_DEVBUF);
+ *previous_next = NULL;
+ } else {
+ /* found */
+ previous_next = &(ct->ct_next);
+ ct->ct_device = csc;
+ ++no_work_funcs;
+ }
+ }
+ /*
+ * XXX power down pseudo function 8 (this will power down the card
+ * if no functions were attached).
+ */
+ disable_function(sc, 8);
+
+ return no_work_funcs;
+}
+
+
+static int
+cardbussubmatch(parent, match, aux)
+ struct device *parent;
+ void *match;
+ void *aux;
+{
+ struct cfdata *cf = match;
+ struct cardbus_attach_args *ca = aux;
+
+ if (cf->cardbuscf_dev != CARDBUS_UNK_DEV &&
+ cf->cardbuscf_dev != ca->ca_unit) {
+ return 0;
+ }
+ if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION &&
+ cf->cardbuscf_function != ca->ca_function) {
+ return 0;
+ }
+
+ return ((*cf->cf_attach->ca_match)(parent, cf, aux));
+}
+
+
+
+static int
+cardbusprint(aux, pnp)
+ void *aux;
+ const char *pnp;
+{
+ struct cardbus_attach_args *ca = aux;
+ char devinfo[256];
+ int i;
+ if (pnp) {
+ pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo);
+ for (i = 0; i < 4; i++) {
+ if (ca->ca_cis.cis1_info[i] == NULL)
+ break;
+ if (i)
+ printf(", ");
+ printf("%s", ca->ca_cis.cis1_info[i]);
+ }
+ if (i)
+ printf(" ");
+ printf("(manufacturer 0x%x, product 0x%x)", ca->ca_cis.manufacturer,
+ ca->ca_cis.product);
+ printf(" %s at %s", devinfo, pnp);
+ }
+ printf(" dev %d function %d", ca->ca_device, ca->ca_function);
+
+ return UNCONF;
+}
+
+
+
+
+
+
+/*
+ * void cardbus_detach_card(struct cardbus_softc *sc)
+ *
+ * This function detaches the card on the slot: detach device data
+ * structure and turns off the power.
+ *
+ * This function must not be called under interrupt context.
+ */
+void
+cardbus_detach_card(sc)
+ struct cardbus_softc *sc;
+{
+ struct cardbus_devfunc *ct, *ct_next, **prev_next;
+
+ prev_next = &(sc->sc_funcs->ct_next);
+
+ for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) {
+ struct device *fndev = ct->ct_device;
+ ct_next = ct->ct_next;
+
+ DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, fndev->dv_xname));
+ /* call device detach function */
+
+ if (0 != config_detach(fndev, 0)) {
+ printf("%s: cannot detaching dev %s, function %d\n",
+ sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func);
+ prev_next = &(ct->ct_next);
+ } else {
+ sc->sc_poweron_func &= ~(1 << ct->ct_func);
+ *prev_next = ct->ct_next;
+ free(ct, M_DEVBUF);
+ }
+ }
+
+ sc->sc_poweron_func = 0;
+ sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V | CARDBUS_VPP_0V);
+}
+
+
+
+
+/*
+ * void *cardbus_intr_establish(cc, cf, irq, level, func, arg)
+ * Interrupt handler of pccard.
+ * args:
+ * cardbus_chipset_tag_t *cc
+ * int irq:
+ */
+void *
+cardbus_intr_establish(cc, cf, irq, level, func, arg)
+ cardbus_chipset_tag_t cc;
+ cardbus_function_tag_t cf;
+ cardbus_intr_handle_t irq;
+ int level;
+ int (*func) __P((void *));
+ void *arg;
+{
+ DPRINTF(("- cardbus_intr_establish: irq %d\n", irq));
+
+ return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg);
+}
+
+
+
+/*
+ * void cardbus_intr_disestablish(cc, cf, handler)
+ * Interrupt handler of pccard.
+ * args:
+ * cardbus_chipset_tag_t *cc
+ */
+void
+cardbus_intr_disestablish(cc, cf, handler)
+ cardbus_chipset_tag_t cc;
+ cardbus_function_tag_t cf;
+ void *handler;
+{
+ DPRINTF(("- pccard_intr_disestablish\n"));
+
+ (*cf->cardbus_intr_disestablish)(cc, handler);
+ return;
+}
+
+
+
+/* XXX this should be merged with cardbus_function_{enable,disable},
+ but we don't have a ct when these functions are called */
+
+static void
+enable_function(sc, cdstatus, function)
+ struct cardbus_softc *sc;
+ int cdstatus;
+ int function;
+{
+
+ if (sc->sc_poweron_func == 0) {
+ /* switch to 3V and/or wait for power to stabilize */
+ if (cdstatus & CARDBUS_3V_CARD) {
+ sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_3V);
+ } else {
+ /* No cards other than 3.3V cards. */
+ return;
+ }
+ (sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET);
+ }
+ sc->sc_poweron_func |= (1 << function);
+}
+
+static void
+disable_function(sc, function)
+ struct cardbus_softc *sc;
+ int function;
+{
+
+ sc->sc_poweron_func &= ~(1 << function);
+ if (sc->sc_poweron_func == 0) {
+ /* power-off because no functions are enabled */
+ sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V);
+ }
+}
+
+/*
+ * int cardbus_function_enable(struct cardbus_softc *sc, int func)
+ *
+ * This function enables a function on a card. When no power is
+ * applied on the card, power will be applied on it.
+ */
+int
+cardbus_function_enable(sc, func)
+ struct cardbus_softc *sc;
+ int func;
+{
+ cardbus_chipset_tag_t cc = sc->sc_cc;
+ cardbus_function_tag_t cf = sc->sc_cf;
+ cardbusreg_t command;
+ cardbustag_t tag;
+
+ DPRINTF(("entering cardbus_function_enable... "));
+
+ /* entering critical area */
+
+ enable_function(sc, CARDBUS_3V_CARD, func); /* XXX: sc_vold should be used */
+
+ /* exiting critical area */
+
+ tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func);
+
+ command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG);
+ command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */
+
+ cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command);
+
+ cardbus_free_tag(cc, cf, tag);
+
+ DPRINTF(("%x\n", sc->sc_poweron_func));
+
+ return 0;
+}
+
+
+/*
+ * int cardbus_function_disable(struct cardbus_softc *, int func)
+ *
+ * This function disable a function on a card. When no functions are
+ * enabled, it turns off the power.
+ */
+int
+cardbus_function_disable(sc, func)
+ struct cardbus_softc *sc;
+ int func;
+{
+
+ DPRINTF(("entering cardbus_function_disable... "));
+
+ disable_function(sc, func);
+
+ return 0;
+}
+
+
+/*
+ * int cardbus_get_capability(cardbus_chipset_tag_t cc,
+ * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset,
+ * cardbusreg_t *value)
+ *
+ * Find the specified PCI capability.
+ */
+int
+cardbus_get_capability(cc, cf, tag, capid, offset, value)
+ cardbus_chipset_tag_t cc;
+ cardbus_function_tag_t cf;
+ cardbustag_t tag;
+ int capid;
+ int *offset;
+ cardbusreg_t *value;
+{
+ cardbusreg_t reg;
+ unsigned int ofs;
+
+ reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG);
+ if (!(reg & PCI_STATUS_CAPLIST_SUPPORT))
+ return (0);
+
+ ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag,
+ PCI_CAPLISTPTR_REG));
+ while (ofs != 0) {
+#ifdef DIAGNOSTIC
+ if ((ofs & 3) || (ofs < 0x40))
+ panic("cardbus_get_capability");
+#endif
+ reg = cardbus_conf_read(cc, cf, tag, ofs);
+ if (PCI_CAPLIST_CAP(reg) == capid) {
+ if (offset)
+ *offset = ofs;
+ if (value)
+ *value = reg;
+ return (1);
+ }
+ ofs = PCI_CAPLIST_NEXT(reg);
+ }
+
+ return (0);
+}
+
+
+/*
+ * below this line, there are some functions for decoding tuples.
+ * They should go out from this file.
+ */
+
+static u_int8_t *
+decode_tuple __P((u_int8_t *tuple, tuple_decode_func func, void *data));
+
+static int
+decode_tuples(tuple, buflen, func, data)
+ u_int8_t *tuple;
+ int buflen;
+ tuple_decode_func func;
+ void *data;
+{
+ u_int8_t *tp = tuple;
+
+ if (PCMCIA_CISTPL_LINKTARGET != *tuple) {
+ DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple));
+ return 0;
+ }
+
+ while (NULL != (tp = decode_tuple(tp, func, data))) {
+ if (tuple + buflen < tp) {
+ break;
+ }
+ }
+
+ return 1;
+}
+
+
+static u_int8_t *
+decode_tuple(tuple, func, data)
+ u_int8_t *tuple;
+ tuple_decode_func func;
+ void *data;
+{
+ u_int8_t type;
+ u_int8_t len;
+
+ type = tuple[0];
+ len = tuple[1] + 2;
+
+ (*func)(tuple, len, data);
+
+ if (PCMCIA_CISTPL_END == type) {
+ return NULL;
+ }
+
+ return tuple + len;
+}
+
+
+#ifdef CARDBUS_DEBUG
+static char *tuple_name __P((int type));
+
+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";
+ }
+}
+
+static void
+print_tuple(tuple, len, data)
+ u_int8_t *tuple;
+ int len;
+ void *data;
+{
+ int i;
+
+ printf("tuple: %s len %d\n", tuple_name(tuple[0]), len);
+
+ 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
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 16:02:39 +0000