1 /* $OpenBSD: if_pgt_pci.c,v 1.18 2015/12/11 16:07:02 mpi Exp $ */ 2 3 /* 4 * Copyright (c) 2006 Marcus Glocker <mglocker@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /* 20 * PCI front-end for the PrismGT 21 */ 22 23 #include "bpfilter.h" 24 25 #include <sys/param.h> 26 #include <sys/sockio.h> 27 #include <sys/mbuf.h> 28 #include <sys/kernel.h> 29 #include <sys/socket.h> 30 #include <sys/systm.h> 31 #include <sys/malloc.h> 32 #include <sys/timeout.h> 33 #include <sys/device.h> 34 35 #include <machine/bus.h> 36 37 #include <net/if.h> 38 #include <net/if_media.h> 39 40 #include <netinet/in.h> 41 #include <netinet/if_ether.h> 42 43 #include <net80211/ieee80211_var.h> 44 #include <net80211/ieee80211_radiotap.h> 45 46 #include <dev/ic/pgtreg.h> 47 #include <dev/ic/pgtvar.h> 48 49 #include <dev/pci/pcireg.h> 50 #include <dev/pci/pcivar.h> 51 #include <dev/pci/pcidevs.h> 52 53 /* Base Address Register */ 54 #define PGT_PCI_BAR0 0x10 55 56 int pgt_pci_match(struct device *, void *, void *); 57 void pgt_pci_attach(struct device *, struct device *, void *); 58 int pgt_pci_detach(struct device *, int); 59 60 struct pgt_pci_softc { 61 struct pgt_softc sc_pgt; 62 63 pci_chipset_tag_t sc_pc; 64 void *sc_ih; 65 bus_size_t sc_mapsize; 66 }; 67 68 struct cfattach pgt_pci_ca = { 69 sizeof(struct pgt_pci_softc), pgt_pci_match, pgt_pci_attach, 70 pgt_pci_detach, pgt_activate 71 }; 72 73 const struct pci_matchid pgt_pci_devices[] = { 74 { PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_ISL3877 }, 75 { PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_ISL3890 }, 76 { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CRWE154G72 } 77 }; 78 79 int 80 pgt_pci_match(struct device *parent, void *match, void *aux) 81 { 82 return (pci_matchbyid((struct pci_attach_args *)aux, pgt_pci_devices, 83 sizeof(pgt_pci_devices) / sizeof(pgt_pci_devices[0]))); 84 } 85 86 void 87 pgt_pci_attach(struct device *parent, struct device *self, void *aux) 88 { 89 struct pgt_pci_softc *psc = (struct pgt_pci_softc *)self; 90 struct pgt_softc *sc = &psc->sc_pgt; 91 struct pci_attach_args *pa = aux; 92 const char *intrstr = NULL; 93 pci_intr_handle_t ih; 94 int error; 95 96 sc->sc_dmat = pa->pa_dmat; 97 psc->sc_pc = pa->pa_pc; 98 99 /* remember chipset */ 100 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTERSIL_ISL3877) 101 sc->sc_flags |= SC_ISL3877; 102 103 /* map control / status registers */ 104 error = pci_mapreg_map(pa, PGT_PCI_BAR0, 105 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 106 &sc->sc_iotag, &sc->sc_iohandle, NULL, &psc->sc_mapsize, 0); 107 if (error != 0) { 108 printf(": can't map mem space\n"); 109 return; 110 } 111 112 /* map interrupt */ 113 if (pci_intr_map(pa, &ih) != 0) { 114 printf(": can't map interrupt\n"); 115 return; 116 } 117 118 /* disable all interrupts */ 119 bus_space_write_4(sc->sc_iotag, sc->sc_iohandle, PGT_REG_INT_EN, 0); 120 (void)bus_space_read_4(sc->sc_iotag, sc->sc_iohandle, PGT_REG_INT_EN); 121 DELAY(PGT_WRITEIO_DELAY); 122 123 /* establish interrupt */ 124 intrstr = pci_intr_string(psc->sc_pc, ih); 125 psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, pgt_intr, sc, 126 sc->sc_dev.dv_xname); 127 if (psc->sc_ih == NULL) { 128 printf(": can't establish interrupt"); 129 if (intrstr != NULL) 130 printf(" at %s", intrstr); 131 printf("\n"); 132 return; 133 } 134 printf(": %s\n", intrstr); 135 136 config_mountroot(self, pgt_attach); 137 } 138 139 int 140 pgt_pci_detach(struct device *self, int flags) 141 { 142 struct pgt_pci_softc *psc = (struct pgt_pci_softc *)self; 143 struct pgt_softc *sc = &psc->sc_pgt; 144 145 if (psc->sc_ih != NULL) { 146 pgt_detach(sc); 147 pci_intr_disestablish(psc->sc_pc, psc->sc_ih); 148 } 149 if (psc->sc_mapsize > 0) 150 bus_space_unmap(sc->sc_iotag, sc->sc_iohandle, 151 psc->sc_mapsize); 152 153 return (0); 154 } 155