1 /* $NetBSD: if_wi_obio.c,v 1.21 2010/12/16 01:56:21 macallan Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Tsubai Masanari. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: if_wi_obio.c,v 1.21 2010/12/16 01:56:21 macallan Exp $"); 31 32 #include "opt_inet.h" 33 34 #include <sys/param.h> 35 #include <sys/callout.h> 36 #include <sys/device.h> 37 #include <sys/socket.h> 38 #include <sys/systm.h> 39 40 #ifdef INET 41 #include <net/if.h> 42 #include <net/if_ether.h> 43 #include <net/if_media.h> 44 #include <net80211/ieee80211_var.h> 45 #include <net80211/ieee80211_radiotap.h> 46 #include <net80211/ieee80211_rssadapt.h> 47 #endif 48 49 #include <machine/autoconf.h> 50 #include <machine/bus.h> 51 52 #include <dev/ic/wi_ieee.h> 53 #include <dev/ic/wireg.h> 54 #include <dev/ic/wivar.h> 55 #include <macppc/dev/obiovar.h> 56 57 static int wi_obio_match(struct device *, struct cfdata *, void *); 58 static void wi_obio_attach(struct device *, struct device *, void *); 59 static int wi_obio_enable(device_t, int); 60 61 struct wi_obio_softc { 62 struct wi_softc sc_wi; 63 bus_space_tag_t sc_tag; 64 }; 65 66 CFATTACH_DECL_NEW(wi_obio, sizeof(struct wi_obio_softc), 67 wi_obio_match, wi_obio_attach, NULL, NULL); 68 69 int 70 wi_obio_match(device_t parent, struct cfdata *match, void *aux) 71 { 72 struct confargs *ca = aux; 73 74 if (ca->ca_nintr < 4 || ca->ca_nreg < 8) 75 return 0; 76 77 if (strcmp(ca->ca_name, "radio") != 0) 78 return 0; 79 80 return 1; 81 } 82 83 #define OBIO_WI_FCR2 0x40 84 #define OBIO_WI_GPIO 0x6a 85 #define OBIO_WI_EXTINT 0x58 86 87 void 88 wi_obio_attach(device_t parent, device_t self, void *aux) 89 { 90 struct wi_obio_softc * const sc = device_private(self); 91 struct wi_softc * const wisc = &sc->sc_wi; 92 struct confargs * const ca = aux; 93 94 aprint_normal(" irq %d:", ca->ca_intr[0]); 95 intr_establish(ca->ca_intr[0], IST_LEVEL, IPL_NET, wi_intr, sc); 96 97 wisc->sc_dev = self; 98 sc->sc_tag = wisc->sc_iot = ca->ca_tag; 99 100 if (bus_space_map(wisc->sc_iot, ca->ca_baseaddr + ca->ca_reg[0], 101 ca->ca_reg[1], 0, &wisc->sc_ioh)) { 102 printf(" can't map i/o space\n"); 103 return; 104 } 105 106 wisc->sc_enabled = 1; 107 wisc->sc_enable = wi_obio_enable; 108 109 if (wi_attach(wisc, 0)) { 110 printf("%s: failed to attach controller\n", self->dv_xname); 111 return; 112 } 113 114 if (!pmf_device_register(self, NULL, NULL)) 115 aprint_error_dev(self, "couldn't establish power handler\n"); 116 else 117 pmf_class_network_register(self, &sc->sc_wi.sc_if); 118 119 /* Disable the card. */ 120 wisc->sc_enabled = 0; 121 wi_obio_enable(self, 0); 122 } 123 124 int 125 wi_obio_enable(device_t self, int enable) 126 { 127 uint32_t x; 128 129 if (enable) { 130 x = obio_read_4(OBIO_WI_FCR2); 131 x |= 0x4; 132 obio_write_4(OBIO_WI_FCR2, x); 133 134 /* Enable card slot. */ 135 obio_write_1(OBIO_WI_GPIO + 0x0f, 5); 136 delay(1000); 137 obio_write_1(OBIO_WI_GPIO + 0x0f, 4); 138 delay(1000); 139 x = obio_read_4(OBIO_WI_FCR2); 140 x &= ~0x8000000; 141 142 obio_write_4(OBIO_WI_FCR2, x); 143 /* out8(gpio + 0x10, 4); */ 144 145 obio_write_1(OBIO_WI_EXTINT + 0x0b, 0); 146 obio_write_1(OBIO_WI_EXTINT + 0x0a, 0x28); 147 obio_write_1(OBIO_WI_EXTINT + 0x0d, 0x28); 148 obio_write_1(OBIO_WI_GPIO + 0x0d, 0x28); 149 obio_write_1(OBIO_WI_GPIO + 0x0e, 0x28); 150 obio_write_4(0x1c000, 0); 151 152 /* Initialize the card. */ 153 obio_write_4(0x1a3e0, 0x41); 154 x = obio_read_4(OBIO_WI_FCR2); 155 x |= 0x8000000; 156 obio_write_4(OBIO_WI_FCR2, x); 157 } else { 158 x = obio_read_4(OBIO_WI_FCR2); 159 x &= ~0x4; 160 obio_write_4(OBIO_WI_FCR2, x); 161 /* out8(gpio + 0x10, 0); */ 162 } 163 164 return 0; 165 } 166