Annotation of sys/dev/pci/if_sf_pci.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_sf_pci.c,v 1.2 2006/12/06 22:43:38 martin Exp $ */
! 2: /* $NetBSD: if_sf_pci.c,v 1.10 2006/06/17 23:34:27 christos Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 2001 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Jason R. Thorpe.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by the NetBSD
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 39:
! 40: /*
! 41: * PCI bus front-end for the Adaptec AIC-6915 (``Starfire'')
! 42: * 10/100 Ethernet controller.
! 43: */
! 44:
! 45: #include <sys/param.h>
! 46: #include <sys/systm.h>
! 47: #include <sys/mbuf.h>
! 48: #include <sys/malloc.h>
! 49: #include <sys/kernel.h>
! 50: #include <sys/socket.h>
! 51: #include <sys/ioctl.h>
! 52: #include <sys/errno.h>
! 53: #include <sys/device.h>
! 54:
! 55: #include <net/if.h>
! 56: #include <net/if_dl.h>
! 57: #include <net/if_types.h>
! 58:
! 59: #ifdef INET
! 60: #include <netinet/in.h>
! 61: #include <netinet/in_systm.h>
! 62: #include <netinet/in_var.h>
! 63: #include <netinet/ip.h>
! 64: #include <netinet/if_ether.h>
! 65: #endif
! 66:
! 67: #include <net/if_media.h>
! 68:
! 69: #include <machine/bus.h>
! 70: #include <machine/intr.h>
! 71:
! 72: #include <dev/mii/miivar.h>
! 73:
! 74: #include <dev/ic/aic6915.h>
! 75:
! 76: #include <dev/pci/pcireg.h>
! 77: #include <dev/pci/pcivar.h>
! 78: #include <dev/pci/pcidevs.h>
! 79:
! 80: struct sf_pci_softc {
! 81: struct sf_softc sc_starfire; /* read Starfire softc */
! 82:
! 83: /* PCI-specific goo. */
! 84: void *sc_ih; /* interrupt handle */
! 85: };
! 86:
! 87: int sf_pci_match(struct device *, void *, void *);
! 88: void sf_pci_attach(struct device *, struct device *, void *);
! 89:
! 90: struct cfattach sf_pci_ca = {
! 91: sizeof(struct sf_pci_softc), sf_pci_match, sf_pci_attach
! 92: };
! 93:
! 94: const struct pci_matchid sf_pci_products[] = {
! 95: { PCI_VENDOR_ADP, PCI_PRODUCT_ADP_AIC6915 },
! 96: };
! 97:
! 98: int
! 99: sf_pci_match(struct device *parent, void *match, void *aux)
! 100: {
! 101: return (pci_matchbyid((struct pci_attach_args *)aux, sf_pci_products,
! 102: sizeof(sf_pci_products)/sizeof(sf_pci_products[0])));
! 103: }
! 104:
! 105: void
! 106: sf_pci_attach(struct device *parent, struct device *self, void *aux)
! 107: {
! 108: struct sf_pci_softc *psc = (void *) self;
! 109: struct sf_softc *sc = &psc->sc_starfire;
! 110: struct pci_attach_args *pa = aux;
! 111: pci_intr_handle_t ih;
! 112: const char *intrstr = NULL;
! 113: bus_space_tag_t iot, memt;
! 114: bus_space_handle_t ioh, memh;
! 115: pcireg_t reg;
! 116: int pmreg, ioh_valid, memh_valid;
! 117:
! 118: if (pci_get_capability(pa->pa_pc, pa->pa_tag, PCI_CAP_PWRMGMT,
! 119: &pmreg, 0)) {
! 120: reg = pci_conf_read(pa->pa_pc, pa->pa_tag, pmreg + PCI_PMCSR);
! 121: switch (reg & PCI_PMCSR_STATE_MASK) {
! 122: case PCI_PMCSR_STATE_D1:
! 123: case PCI_PMCSR_STATE_D2:
! 124: printf(": waking up from power state D%d\n%s",
! 125: reg & PCI_PMCSR_STATE_MASK, sc->sc_dev.dv_xname);
! 126: pci_conf_write(pa->pa_pc, pa->pa_tag, pmreg + PCI_PMCSR,
! 127: (reg & ~PCI_PMCSR_STATE_MASK) |
! 128: PCI_PMCSR_STATE_D0);
! 129: break;
! 130:
! 131: case PCI_PMCSR_STATE_D3:
! 132: printf("%s: unable to wake up from power state D3\n",
! 133: sc->sc_dev.dv_xname);
! 134: pci_conf_write(pa->pa_pc, pa->pa_tag, pmreg + PCI_PMCSR,
! 135: (reg & ~PCI_PMCSR_STATE_MASK) |
! 136: PCI_PMCSR_STATE_D0);
! 137: return;
! 138: }
! 139: }
! 140:
! 141: /*
! 142: * Map the device.
! 143: */
! 144: reg = pci_mapreg_type(pa->pa_pc, pa->pa_tag, SF_PCI_MEMBA);
! 145: switch (reg) {
! 146: case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
! 147: case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
! 148: memh_valid = (pci_mapreg_map(pa, SF_PCI_MEMBA,
! 149: reg, 0, &memt, &memh, NULL, NULL, 0) == 0);
! 150: break;
! 151: default:
! 152: memh_valid = 0;
! 153: }
! 154:
! 155: ioh_valid = (pci_mapreg_map(pa,
! 156: (reg == (PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT)) ?
! 157: SF_PCI_IOBA : SF_PCI_IOBA - 0x04,
! 158: PCI_MAPREG_TYPE_IO, 0,
! 159: &iot, &ioh, NULL, NULL, 0) == 0);
! 160:
! 161: if (memh_valid) {
! 162: sc->sc_st = memt;
! 163: sc->sc_sh = memh;
! 164: sc->sc_iomapped = 0;
! 165: } else if (ioh_valid) {
! 166: sc->sc_st = iot;
! 167: sc->sc_sh = ioh;
! 168: sc->sc_iomapped = 1;
! 169: } else {
! 170: printf("%s: unable to map device registers\n",
! 171: sc->sc_dev.dv_xname);
! 172: return;
! 173: }
! 174:
! 175: sc->sc_dmat = pa->pa_dmat;
! 176:
! 177: /* Make sure bus mastering is enabled. */
! 178: pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
! 179: pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
! 180: PCI_COMMAND_MASTER_ENABLE);
! 181:
! 182: /*
! 183: * Map and establish our interrupt.
! 184: */
! 185: if (pci_intr_map(pa, &ih)) {
! 186: printf("%s: unable to map interrupt\n", sc->sc_dev.dv_xname);
! 187: return;
! 188: }
! 189: intrstr = pci_intr_string(pa->pa_pc, ih);
! 190: psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, sf_intr, sc,
! 191: self->dv_xname);
! 192: if (psc->sc_ih == NULL) {
! 193: printf("%s: unable to establish interrupt",
! 194: sc->sc_dev.dv_xname);
! 195: if (intrstr != NULL)
! 196: printf(" at %s", intrstr);
! 197: return;
! 198: }
! 199: printf(": %s", intrstr);
! 200:
! 201: /*
! 202: * Finish off the attach.
! 203: */
! 204: sf_attach(sc);
! 205: }
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