Annotation of sys/dev/cardbus/if_acx_cardbus.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_acx_cardbus.c,v 1.11 2006/11/10 20:20:04 damien Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2006 Claudio Jeker <claudio@openbsd.org>
! 5: * Copyright (c) 2005, 2006
! 6: * Damien Bergamini <damien.bergamini@free.fr>
! 7: *
! 8: * Permission to use, copy, modify, and distribute this software for any
! 9: * purpose with or without fee is hereby granted, provided that the above
! 10: * copyright notice and this permission notice appear in all copies.
! 11: *
! 12: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 13: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 14: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 15: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 16: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 17: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 18: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 19: */
! 20:
! 21: /*
! 22: * CardBus front-end for the Texas Instruments ACX driver
! 23: */
! 24:
! 25: #include "bpfilter.h"
! 26:
! 27: #include <sys/param.h>
! 28: #include <sys/sockio.h>
! 29: #include <sys/mbuf.h>
! 30: #include <sys/kernel.h>
! 31: #include <sys/socket.h>
! 32: #include <sys/systm.h>
! 33: #include <sys/malloc.h>
! 34: #include <sys/timeout.h>
! 35: #include <sys/device.h>
! 36:
! 37: #include <machine/bus.h>
! 38: #include <machine/intr.h>
! 39:
! 40: #include <net/if.h>
! 41: #include <net/if_dl.h>
! 42: #include <net/if_media.h>
! 43:
! 44: #ifdef INET
! 45: #include <netinet/in.h>
! 46: #include <netinet/if_ether.h>
! 47: #endif
! 48:
! 49: #include <net80211/ieee80211_var.h>
! 50: #include <net80211/ieee80211_amrr.h>
! 51: #include <net80211/ieee80211_radiotap.h>
! 52:
! 53: #include <dev/ic/acxvar.h>
! 54: #include <dev/ic/acxreg.h>
! 55:
! 56: #include <dev/pci/pcireg.h>
! 57: #include <dev/pci/pcivar.h>
! 58: #include <dev/pci/pcidevs.h>
! 59:
! 60: #include <dev/cardbus/cardbusvar.h>
! 61:
! 62: struct acx_cardbus_softc {
! 63: struct acx_softc sc_acx;
! 64:
! 65: /* cardbus specific goo */
! 66: cardbus_devfunc_t sc_ct;
! 67: cardbustag_t sc_tag;
! 68: void *sc_ih;
! 69: bus_size_t sc_mapsize1;
! 70: bus_size_t sc_mapsize2;
! 71: pcireg_t sc_iobar_val; /* acx100 only */
! 72: pcireg_t sc_bar1_val;
! 73: pcireg_t sc_bar2_val;
! 74: int sc_intrline;
! 75:
! 76: /* hack for ACX100A */
! 77: bus_space_tag_t sc_io_bt;
! 78: bus_space_handle_t sc_io_bh;
! 79: bus_size_t sc_iomapsize;
! 80: };
! 81:
! 82: int acx_cardbus_match(struct device *, void *, void *);
! 83: void acx_cardbus_attach(struct device *, struct device *, void *);
! 84: int acx_cardbus_detach(struct device *, int);
! 85:
! 86: struct cfattach acx_cardbus_ca = {
! 87: sizeof (struct acx_cardbus_softc), acx_cardbus_match,
! 88: acx_cardbus_attach, acx_cardbus_detach
! 89: };
! 90:
! 91: static const struct cardbus_matchid acx_cardbus_devices[] = {
! 92: { PCI_VENDOR_TI, PCI_PRODUCT_TI_ACX100A },
! 93: { PCI_VENDOR_TI, PCI_PRODUCT_TI_ACX100B },
! 94: { PCI_VENDOR_TI, PCI_PRODUCT_TI_ACX111 },
! 95: };
! 96:
! 97: int acx_cardbus_enable(struct acx_softc *);
! 98: void acx_cardbus_disable(struct acx_softc *);
! 99: void acx_cardbus_power(struct acx_softc *, int);
! 100: void acx_cardbus_setup(struct acx_cardbus_softc *);
! 101:
! 102: int
! 103: acx_cardbus_match(struct device *parent, void *match, void *aux)
! 104: {
! 105: return (cardbus_matchbyid((struct cardbus_attach_args *)aux,
! 106: acx_cardbus_devices,
! 107: sizeof (acx_cardbus_devices) / sizeof (acx_cardbus_devices[0])));
! 108: }
! 109:
! 110: void
! 111: acx_cardbus_attach(struct device *parent, struct device *self, void *aux)
! 112: {
! 113: struct acx_cardbus_softc *csc = (struct acx_cardbus_softc *)self;
! 114: struct acx_softc *sc = &csc->sc_acx;
! 115: struct cardbus_attach_args *ca = aux;
! 116: cardbus_devfunc_t ct = ca->ca_ct;
! 117: bus_addr_t base;
! 118: int error, b1 = CARDBUS_BASE0_REG, b2 = CARDBUS_BASE1_REG;
! 119:
! 120: sc->sc_dmat = ca->ca_dmat;
! 121: csc->sc_ct = ct;
! 122: csc->sc_tag = ca->ca_tag;
! 123: csc->sc_intrline = ca->ca_intrline;
! 124:
! 125: /* power management hooks */
! 126: sc->sc_enable = acx_cardbus_enable;
! 127: sc->sc_disable = acx_cardbus_disable;
! 128: sc->sc_power = acx_cardbus_power;
! 129:
! 130: if (CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_TI_ACX100A) {
! 131: /* first map I/O space as seen in the dragonfly code */
! 132: error = Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG,
! 133: CARDBUS_MAPREG_TYPE_IO, 0, &csc->sc_io_bt, &csc->sc_io_bh,
! 134: &base, &csc->sc_iomapsize);
! 135: if (error != 0) {
! 136: printf(": could not map i/o space\n");
! 137: return;
! 138: }
! 139: csc->sc_iobar_val = base | CARDBUS_MAPREG_TYPE_IO;
! 140: b1 = CARDBUS_BASE1_REG;
! 141: b2 = CARDBUS_BASE2_REG;
! 142: }
! 143:
! 144: /* map control/status registers */
! 145: error = Cardbus_mapreg_map(ct, b1, CARDBUS_MAPREG_TYPE_MEM, 0,
! 146: &sc->sc_mem1_bt, &sc->sc_mem1_bh, &base, &csc->sc_mapsize1);
! 147: if (error != 0) {
! 148: printf(": could not map memory1 space\n");
! 149: return;
! 150: }
! 151:
! 152: csc->sc_bar1_val = base | CARDBUS_MAPREG_TYPE_MEM;
! 153:
! 154: /* map the other memory region */
! 155: error = Cardbus_mapreg_map(ct, b2, CARDBUS_MAPREG_TYPE_MEM, 0,
! 156: &sc->sc_mem2_bt, &sc->sc_mem2_bh, &base, &csc->sc_mapsize2);
! 157: if (error != 0) {
! 158: printf(": could not map memory2 space\n");
! 159: return;
! 160: }
! 161:
! 162: csc->sc_bar2_val = base | CARDBUS_MAPREG_TYPE_MEM;
! 163:
! 164: /* set up the PCI configuration registers */
! 165: acx_cardbus_setup(csc);
! 166:
! 167: printf(": irq %d\n", csc->sc_intrline);
! 168:
! 169: if (CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_TI_ACX111)
! 170: acx111_set_param(sc);
! 171: else
! 172: acx100_set_param(sc);
! 173:
! 174: acx_attach(sc);
! 175:
! 176: Cardbus_function_disable(ct);
! 177: }
! 178:
! 179: int
! 180: acx_cardbus_detach(struct device *self, int flags)
! 181: {
! 182: struct acx_cardbus_softc *csc = (struct acx_cardbus_softc *)self;
! 183: struct acx_softc *sc = &csc->sc_acx;
! 184: cardbus_devfunc_t ct = csc->sc_ct;
! 185: cardbus_chipset_tag_t cc = ct->ct_cc;
! 186: cardbus_function_tag_t cf = ct->ct_cf;
! 187: int error, b1 = CARDBUS_BASE0_REG, b2 = CARDBUS_BASE1_REG;
! 188:
! 189: error = acx_detach(sc);
! 190: if (error != 0)
! 191: return (error);
! 192:
! 193: /* unhook the interrupt handler */
! 194: if (csc->sc_ih != NULL) {
! 195: cardbus_intr_disestablish(cc, cf, csc->sc_ih);
! 196: csc->sc_ih = NULL;
! 197: }
! 198:
! 199: /* release bus space and close window */
! 200: if (csc->sc_iomapsize) {
! 201: b1 = CARDBUS_BASE1_REG;
! 202: b2 = CARDBUS_BASE2_REG;
! 203: }
! 204: Cardbus_mapreg_unmap(ct, b1, sc->sc_mem1_bt,
! 205: sc->sc_mem1_bh, csc->sc_mapsize1);
! 206: Cardbus_mapreg_unmap(ct, b2, sc->sc_mem2_bt,
! 207: sc->sc_mem2_bh, csc->sc_mapsize2);
! 208: if (csc->sc_iomapsize)
! 209: Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, csc->sc_io_bt,
! 210: csc->sc_io_bh, csc->sc_iomapsize);
! 211:
! 212: return (0);
! 213: }
! 214:
! 215: int
! 216: acx_cardbus_enable(struct acx_softc *sc)
! 217: {
! 218: struct acx_cardbus_softc *csc = (struct acx_cardbus_softc *)sc;
! 219: cardbus_devfunc_t ct = csc->sc_ct;
! 220: cardbus_chipset_tag_t cc = ct->ct_cc;
! 221: cardbus_function_tag_t cf = ct->ct_cf;
! 222:
! 223: /* power on the socket */
! 224: Cardbus_function_enable(ct);
! 225:
! 226: /* setup the PCI configuration registers */
! 227: acx_cardbus_setup(csc);
! 228:
! 229: /* map and establish the interrupt handler */
! 230: csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET,
! 231: acx_intr, sc, sc->sc_dev.dv_xname);
! 232: if (csc->sc_ih == NULL) {
! 233: printf("%s: could not establish interrupt at %d\n",
! 234: sc->sc_dev.dv_xname, csc->sc_intrline);
! 235: Cardbus_function_disable(ct);
! 236: return (1);
! 237: }
! 238:
! 239: return (0);
! 240: }
! 241:
! 242: void
! 243: acx_cardbus_disable(struct acx_softc *sc)
! 244: {
! 245: struct acx_cardbus_softc *csc = (struct acx_cardbus_softc *)sc;
! 246: cardbus_devfunc_t ct = csc->sc_ct;
! 247: cardbus_chipset_tag_t cc = ct->ct_cc;
! 248: cardbus_function_tag_t cf = ct->ct_cf;
! 249:
! 250: /* unhook the interrupt handler */
! 251: cardbus_intr_disestablish(cc, cf, csc->sc_ih);
! 252: csc->sc_ih = NULL;
! 253:
! 254: /* power down the socket */
! 255: Cardbus_function_disable(ct);
! 256: }
! 257:
! 258: void
! 259: acx_cardbus_power(struct acx_softc *sc, int why)
! 260: {
! 261: struct acx_cardbus_softc *csc = (struct acx_cardbus_softc *)sc;
! 262:
! 263: if (why == PWR_RESUME) {
! 264: /* kick the PCI configuration registers */
! 265: acx_cardbus_setup(csc);
! 266: }
! 267: }
! 268:
! 269: void
! 270: acx_cardbus_setup(struct acx_cardbus_softc *csc)
! 271: {
! 272: cardbus_devfunc_t ct = csc->sc_ct;
! 273: cardbus_chipset_tag_t cc = ct->ct_cc;
! 274: cardbus_function_tag_t cf = ct->ct_cf;
! 275: pcireg_t reg;
! 276: int b1 = CARDBUS_BASE0_REG, b2 = CARDBUS_BASE1_REG;
! 277:
! 278: if (csc->sc_iobar_val) {
! 279: cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BASE0_REG,
! 280: csc->sc_bar1_val);
! 281: b1 = CARDBUS_BASE1_REG;
! 282: b2 = CARDBUS_BASE2_REG;
! 283: /* (*cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE); */
! 284: }
! 285:
! 286: /* program the BAR */
! 287: cardbus_conf_write(cc, cf, csc->sc_tag, b1, csc->sc_bar1_val);
! 288: cardbus_conf_write(cc, cf, csc->sc_tag, b2, csc->sc_bar2_val);
! 289:
! 290: /* make sure the right access type is on the cardbus bridge */
! 291: (*cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
! 292: (*cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
! 293:
! 294: /* enable the appropriate bits in the PCI CSR */
! 295: reg = cardbus_conf_read(cc, cf, csc->sc_tag,
! 296: CARDBUS_COMMAND_STATUS_REG);
! 297: reg |= CARDBUS_COMMAND_MASTER_ENABLE | CARDBUS_COMMAND_MEM_ENABLE;
! 298: #if 0
! 299: if (csc->sc_iobar_val)
! 300: reg |= CARDBUS_COMMAND_IO_ENABLE;
! 301: #endif
! 302: cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG,
! 303: reg);
! 304: }
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