if_ral_pci.c revision 1.4.6.1
1 /* $NetBSD: if_ral_pci.c,v 1.4.6.1 2006/11/18 21:34:30 ad Exp $ */ 2 /* $OpenBSD: if_ral_pci.c,v 1.6 2006/01/09 20:03:43 damien Exp $ */ 3 4 /*- 5 * Copyright (c) 2005, 2006 6 * Damien Bergamini <damien.bergamini (at) 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 * PCI front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver. 23 */ 24 #include <sys/cdefs.h> 25 __KERNEL_RCSID(0, "$NetBSD: if_ral_pci.c,v 1.4.6.1 2006/11/18 21:34:30 ad Exp $"); 26 27 #include "bpfilter.h" 28 29 #include <sys/param.h> 30 #include <sys/sockio.h> 31 #include <sys/mbuf.h> 32 #include <sys/kernel.h> 33 #include <sys/socket.h> 34 #include <sys/systm.h> 35 #include <sys/malloc.h> 36 #include <sys/device.h> 37 38 #include <machine/bus.h> 39 #include <machine/intr.h> 40 41 #include <net/if.h> 42 #include <net/if_dl.h> 43 #include <net/if_media.h> 44 #include <net/if_ether.h> 45 46 #include <netinet/in.h> 47 48 #include <net80211/ieee80211_var.h> 49 #include <net80211/ieee80211_rssadapt.h> 50 #include <net80211/ieee80211_radiotap.h> 51 52 #include <dev/ic/rt2560var.h> 53 #include <dev/ic/rt2661var.h> 54 55 #include <dev/pci/pcireg.h> 56 #include <dev/pci/pcivar.h> 57 #include <dev/pci/pcidevs.h> 58 59 static struct ral_opns { 60 int (*attach)(void *, int); 61 int (*detach)(void *); 62 int (*intr)(void *); 63 64 } ral_rt2560_opns = { 65 rt2560_attach, 66 rt2560_detach, 67 rt2560_intr 68 69 }, ral_rt2661_opns = { 70 rt2661_attach, 71 rt2661_detach, 72 rt2661_intr 73 }; 74 75 struct ral_pci_softc { 76 union { 77 struct rt2560_softc sc_rt2560; 78 struct rt2661_softc sc_rt2661; 79 } u; 80 #define sc_sc u.sc_rt2560 81 82 /* PCI specific goo */ 83 struct ral_opns *sc_opns; 84 pci_chipset_tag_t sc_pc; 85 void *sc_ih; 86 bus_size_t sc_mapsize; 87 }; 88 89 /* Base Address Register */ 90 #define RAL_PCI_BAR0 0x10 91 92 int ral_pci_match(struct device *, struct cfdata *, void *); 93 void ral_pci_attach(struct device *, struct device *, void *); 94 int ral_pci_detach(struct device *, int); 95 96 CFATTACH_DECL(ral_pci, sizeof (struct ral_pci_softc), 97 ral_pci_match, ral_pci_attach, ral_pci_detach, NULL); 98 99 int 100 ral_pci_match(struct device *parent, struct cfdata *cfdata, 101 void *aux) 102 { 103 struct pci_attach_args *pa = aux; 104 105 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_RALINK) { 106 switch (PCI_PRODUCT(pa->pa_id)) { 107 case PCI_PRODUCT_RALINK_RT2560: 108 case PCI_PRODUCT_RALINK_RT2561: 109 case PCI_PRODUCT_RALINK_RT2561S: 110 case PCI_PRODUCT_RALINK_RT2661: 111 return 1; 112 default: 113 return 0; 114 } 115 } 116 117 return 0; 118 } 119 120 void 121 ral_pci_attach(struct device *parent, struct device *self, void *aux) 122 { 123 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 124 struct rt2560_softc *sc = &psc->sc_sc; 125 struct pci_attach_args *pa = aux; 126 const char *intrstr; 127 char devinfo[256]; 128 bus_addr_t base; 129 pci_intr_handle_t ih; 130 pcireg_t reg; 131 int error, revision; 132 133 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 134 revision = PCI_REVISION(pa->pa_class); 135 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 136 137 psc->sc_opns = (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560) ? 138 &ral_rt2560_opns : &ral_rt2661_opns; 139 140 sc->sc_dmat = pa->pa_dmat; 141 psc->sc_pc = pa->pa_pc; 142 143 /* enable the appropriate bits in the PCI CSR */ 144 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 145 reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; 146 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg); 147 148 /* map control/status registers */ 149 error = pci_mapreg_map(pa, RAL_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 150 PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_st, &sc->sc_sh, &base, 151 &psc->sc_mapsize); 152 153 if (error != 0) { 154 aprint_error(": could not map memory space\n"); 155 return; 156 } 157 158 if (pci_intr_map(pa, &ih) != 0) { 159 aprint_error(": could not map interrupt\n"); 160 return; 161 } 162 163 intrstr = pci_intr_string(psc->sc_pc, ih); 164 psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, 165 psc->sc_opns->intr, sc); 166 167 if (psc->sc_ih == NULL) { 168 aprint_error(": could not establish interrupt"); 169 if (intrstr != NULL) 170 printf(" at %s", intrstr); 171 aprint_error("\n"); 172 return; 173 } 174 aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 175 176 (*psc->sc_opns->attach)(sc, PCI_PRODUCT(pa->pa_id)); 177 } 178 179 int 180 ral_pci_detach(struct device *self, int flags) 181 { 182 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 183 struct rt2560_softc *sc = &psc->sc_sc; 184 185 (*psc->sc_opns->detach)(sc); 186 pci_intr_disestablish(psc->sc_pc, psc->sc_ih); 187 188 return 0; 189 } 190 191
Indexes created Sat Nov 01 05:10:12 GMT 2025