if_ral_pci.c revision 1.9
1 /* $NetBSD: if_ral_pci.c,v 1.9 2008/04/29 22:21:45 scw 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 1.9 2008/04/29 22:21:45 scw 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 <sys/bus.h> 39 #include <sys/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_amrr.h> 50 #include <net80211/ieee80211_rssadapt.h> 51 #include <net80211/ieee80211_radiotap.h> 52 53 #include <dev/ic/rt2560var.h> 54 #include <dev/ic/rt2661var.h> 55 56 #include <dev/pci/pcireg.h> 57 #include <dev/pci/pcivar.h> 58 #include <dev/pci/pcidevs.h> 59 60 static struct ral_opns { 61 int (*attach)(void *, int); 62 int (*detach)(void *); 63 int (*intr)(void *); 64 65 } ral_rt2560_opns = { 66 rt2560_attach, 67 rt2560_detach, 68 rt2560_intr 69 70 }, ral_rt2661_opns = { 71 rt2661_attach, 72 rt2661_detach, 73 rt2661_intr 74 }; 75 76 struct ral_pci_softc { 77 union { 78 struct rt2560_softc sc_rt2560; 79 struct rt2661_softc sc_rt2661; 80 } u; 81 #define sc_sc u.sc_rt2560 82 83 /* PCI specific goo */ 84 struct ral_opns *sc_opns; 85 pci_chipset_tag_t sc_pc; 86 void *sc_ih; 87 bus_size_t sc_mapsize; 88 }; 89 90 /* Base Address Register */ 91 #define RAL_PCI_BAR0 0x10 92 93 int ral_pci_match(struct device *, struct cfdata *, void *); 94 void ral_pci_attach(struct device *, struct device *, void *); 95 int ral_pci_detach(struct device *, int); 96 97 CFATTACH_DECL(ral_pci, sizeof (struct ral_pci_softc), 98 ral_pci_match, ral_pci_attach, ral_pci_detach, NULL); 99 100 int 101 ral_pci_match(struct device *parent, struct cfdata *cfdata, 102 void *aux) 103 { 104 struct pci_attach_args *pa = aux; 105 106 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_RALINK) { 107 switch (PCI_PRODUCT(pa->pa_id)) { 108 case PCI_PRODUCT_RALINK_RT2560: 109 case PCI_PRODUCT_RALINK_RT2561: 110 case PCI_PRODUCT_RALINK_RT2561S: 111 case PCI_PRODUCT_RALINK_RT2661: 112 return 1; 113 default: 114 return 0; 115 } 116 } 117 118 return 0; 119 } 120 121 void 122 ral_pci_attach(struct device *parent, struct device *self, void *aux) 123 { 124 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 125 struct rt2560_softc *sc = &psc->sc_sc; 126 struct pci_attach_args *pa = aux; 127 const char *intrstr; 128 char devinfo[256]; 129 bus_addr_t base; 130 pci_intr_handle_t ih; 131 pcireg_t reg; 132 int error, revision; 133 134 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 135 revision = PCI_REVISION(pa->pa_class); 136 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 137 138 psc->sc_opns = (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560) ? 139 &ral_rt2560_opns : &ral_rt2661_opns; 140 141 sc->sc_dmat = pa->pa_dmat; 142 psc->sc_pc = pa->pa_pc; 143 144 /* enable the appropriate bits in the PCI CSR */ 145 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 146 reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; 147 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg); 148 149 /* map control/status registers */ 150 error = pci_mapreg_map(pa, RAL_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 151 PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_st, &sc->sc_sh, &base, 152 &psc->sc_mapsize); 153 154 if (error != 0) { 155 aprint_error(": could not map memory space\n"); 156 return; 157 } 158 159 if (pci_intr_map(pa, &ih) != 0) { 160 aprint_error(": could not map interrupt\n"); 161 return; 162 } 163 164 intrstr = pci_intr_string(psc->sc_pc, ih); 165 psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, 166 psc->sc_opns->intr, sc); 167 168 if (psc->sc_ih == NULL) { 169 aprint_error(": could not establish interrupt"); 170 if (intrstr != NULL) 171 printf(" at %s", intrstr); 172 aprint_error("\n"); 173 return; 174 } 175 aprint_normal_dev(&sc->sc_dev, "interrupting at %s\n", intrstr); 176 177 (*psc->sc_opns->attach)(sc, PCI_PRODUCT(pa->pa_id)); 178 } 179 180 int 181 ral_pci_detach(struct device *self, int flags) 182 { 183 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 184 struct rt2560_softc *sc = &psc->sc_sc; 185 186 (*psc->sc_opns->detach)(sc); 187 pci_intr_disestablish(psc->sc_pc, psc->sc_ih); 188 189 return 0; 190 } 191 192
Indexes created Sat Nov 01 05:10:12 GMT 2025