1 /* $NetBSD: if_ral_pci.c,v 1.2 2005/07/04 17:50:10 drochner Exp $ */ 2 /* $OpenBSD: if_ral_pci.c,v 1.4 2005/02/22 10:41:30 damien Exp $ */ 3 4 /*- 5 * Copyright (c) 2005 6 * Damien Bergamini <damien.bergamini@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 RT2500 driver. 23 */ 24 25 #include <sys/cdefs.h> 26 __KERNEL_RCSID(0, "$NetBSD: if_ral_pci.c,v 1.2 2005/07/04 17:50:10 drochner Exp $"); 27 28 #include "bpfilter.h" 29 30 #include <sys/param.h> 31 #include <sys/sockio.h> 32 #include <sys/mbuf.h> 33 #include <sys/kernel.h> 34 #include <sys/socket.h> 35 #include <sys/systm.h> 36 #include <sys/malloc.h> 37 #include <sys/device.h> 38 39 #include <machine/bus.h> 40 #include <machine/intr.h> 41 42 #include <net/if.h> 43 #include <net/if_dl.h> 44 #include <net/if_ether.h> 45 #include <net/if_media.h> 46 47 #include <netinet/in.h> 48 49 #include <net80211/ieee80211_var.h> 50 #include <net80211/ieee80211_rssadapt.h> 51 #include <net80211/ieee80211_radiotap.h> 52 53 #include <dev/ic/ralvar.h> 54 55 #include <dev/pci/pcireg.h> 56 #include <dev/pci/pcivar.h> 57 #include <dev/pci/pcidevs.h> 58 59 struct ral_pci_softc { 60 struct ral_softc sc_sc; 61 62 /* PCI specific goo */ 63 pci_chipset_tag_t sc_pc; 64 void *sc_ih; 65 bus_size_t sc_mapsize; 66 }; 67 68 /* Base Address Register */ 69 #define RAL_PCI_BAR0 0x10 70 71 int ral_pci_match(struct device *, struct cfdata *, void *); 72 void ral_pci_attach(struct device *, struct device *, void *); 73 int ral_pci_detach(struct device *, int); 74 75 CFATTACH_DECL(ral_pci, sizeof (struct ral_pci_softc), 76 ral_pci_match, ral_pci_attach, ral_pci_detach, NULL); 77 78 int 79 ral_pci_match(struct device *parent, struct cfdata *match, void *aux) 80 { 81 struct pci_attach_args *pa = aux; 82 83 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_RALINK && 84 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560) 85 return 1; 86 87 return 0; 88 } 89 90 void 91 ral_pci_attach(struct device *parent, struct device *self, void *aux) 92 { 93 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 94 struct ral_softc *sc = &psc->sc_sc; 95 struct pci_attach_args *pa = aux; 96 const char *intrstr; 97 bus_addr_t base; 98 pci_intr_handle_t ih; 99 pcireg_t reg; 100 int error; 101 102 sc->sc_dmat = pa->pa_dmat; 103 psc->sc_pc = pa->pa_pc; 104 105 /* enable the appropriate bits in the PCI CSR */ 106 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 107 reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; 108 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg); 109 110 /* map control/status registers */ 111 error = pci_mapreg_map(pa, RAL_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 112 PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_st, &sc->sc_sh, &base, 113 &psc->sc_mapsize); 114 if (error != 0) { 115 printf(": could not map memory space\n"); 116 return; 117 } 118 119 if (pci_intr_map(pa, &ih) != 0) { 120 printf(": could not map interrupt\n"); 121 return; 122 } 123 124 intrstr = pci_intr_string(psc->sc_pc, ih); 125 psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, ral_intr, sc); 126 if (psc->sc_ih == NULL) { 127 printf(": could not establish interrupt"); 128 if (intrstr != NULL) 129 printf(" at %s", intrstr); 130 printf("\n"); 131 return; 132 } 133 printf(": %s\n", intrstr); 134 135 ral_attach(sc); 136 } 137 138 int 139 ral_pci_detach(struct device *self, int flags) 140 { 141 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 142 struct ral_softc *sc = &psc->sc_sc; 143 144 ral_detach(sc); 145 pci_intr_disestablish(psc->sc_pc, psc->sc_ih); 146 147 return 0; 148 } 149