1 /* $OpenBSD: if_ral_pci.c,v 1.8 2006/11/18 20:44:40 grange Exp $ */ 2 3 /*- 4 * Copyright (c) 2005, 2006 5 * Damien Bergamini <damien.bergamini@free.fr> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /* 21 * PCI front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver. 22 */ 23 24 #include "bpfilter.h" 25 26 #include <sys/param.h> 27 #include <sys/sockio.h> 28 #include <sys/mbuf.h> 29 #include <sys/kernel.h> 30 #include <sys/socket.h> 31 #include <sys/systm.h> 32 #include <sys/malloc.h> 33 #include <sys/timeout.h> 34 #include <sys/device.h> 35 36 #include <machine/bus.h> 37 #include <machine/intr.h> 38 39 #include <net/if.h> 40 #include <net/if_dl.h> 41 #include <net/if_media.h> 42 43 #include <netinet/in.h> 44 #include <netinet/if_ether.h> 45 46 #include <net80211/ieee80211_var.h> 47 #include <net80211/ieee80211_amrr.h> 48 #include <net80211/ieee80211_radiotap.h> 49 50 #include <dev/ic/rt2560var.h> 51 #include <dev/ic/rt2661var.h> 52 53 #include <dev/pci/pcireg.h> 54 #include <dev/pci/pcivar.h> 55 #include <dev/pci/pcidevs.h> 56 57 static struct ral_opns { 58 int (*attach)(void *, int); 59 int (*detach)(void *); 60 int (*intr)(void *); 61 62 } ral_rt2560_opns = { 63 rt2560_attach, 64 rt2560_detach, 65 rt2560_intr 66 67 }, ral_rt2661_opns = { 68 rt2661_attach, 69 rt2661_detach, 70 rt2661_intr 71 }; 72 73 struct ral_pci_softc { 74 union { 75 struct rt2560_softc sc_rt2560; 76 struct rt2661_softc sc_rt2661; 77 } u; 78 #define sc_sc u.sc_rt2560 79 80 /* PCI specific goo */ 81 struct ral_opns *sc_opns; 82 pci_chipset_tag_t sc_pc; 83 void *sc_ih; 84 bus_size_t sc_mapsize; 85 }; 86 87 /* Base Address Register */ 88 #define RAL_PCI_BAR0 0x10 89 90 int ral_pci_match(struct device *, void *, void *); 91 void ral_pci_attach(struct device *, struct device *, void *); 92 int ral_pci_detach(struct device *, int); 93 94 struct cfattach ral_pci_ca = { 95 sizeof (struct ral_pci_softc), ral_pci_match, ral_pci_attach, 96 ral_pci_detach 97 }; 98 99 const struct pci_matchid ral_pci_devices[] = { 100 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560 }, 101 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561 }, 102 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S }, 103 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661 } 104 }; 105 106 int 107 ral_pci_match(struct device *parent, void *match, void *aux) 108 { 109 return (pci_matchbyid((struct pci_attach_args *)aux, ral_pci_devices, 110 sizeof (ral_pci_devices) / sizeof (ral_pci_devices[0]))); 111 } 112 113 void 114 ral_pci_attach(struct device *parent, struct device *self, void *aux) 115 { 116 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 117 struct rt2560_softc *sc = &psc->sc_sc; 118 struct pci_attach_args *pa = aux; 119 const char *intrstr; 120 pci_intr_handle_t ih; 121 int error; 122 123 psc->sc_opns = (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560) ? 124 &ral_rt2560_opns : &ral_rt2661_opns; 125 126 sc->sc_dmat = pa->pa_dmat; 127 psc->sc_pc = pa->pa_pc; 128 129 /* map control/status registers */ 130 error = pci_mapreg_map(pa, RAL_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 131 PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_st, &sc->sc_sh, NULL, 132 &psc->sc_mapsize, 0); 133 if (error != 0) { 134 printf(": could not map memory space\n"); 135 return; 136 } 137 138 if (pci_intr_map(pa, &ih) != 0) { 139 printf(": could not map interrupt\n"); 140 return; 141 } 142 143 intrstr = pci_intr_string(psc->sc_pc, ih); 144 psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, 145 psc->sc_opns->intr, sc, sc->sc_dev.dv_xname); 146 if (psc->sc_ih == NULL) { 147 printf(": could not establish interrupt"); 148 if (intrstr != NULL) 149 printf(" at %s", intrstr); 150 printf("\n"); 151 return; 152 } 153 printf(": %s", intrstr); 154 155 (*psc->sc_opns->attach)(sc, PCI_PRODUCT(pa->pa_id)); 156 } 157 158 int 159 ral_pci_detach(struct device *self, int flags) 160 { 161 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 162 struct rt2560_softc *sc = &psc->sc_sc; 163 164 (*psc->sc_opns->detach)(sc); 165 pci_intr_disestablish(psc->sc_pc, psc->sc_ih); 166 167 return 0; 168 } 169