1 /*- 2 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification. 11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 12 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 13 * redistribution must be conditioned upon including a substantially 14 * similar Disclaimer requirement for further binary redistribution. 15 * 16 * NO WARRANTY 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 21 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 27 * THE POSSIBILITY OF SUCH DAMAGES. 28 */ 29 30 #include <sys/cdefs.h> 31 32 /* 33 * Driver for the Atheros Wireless LAN controller. 34 * 35 * This software is derived from work of Atsushi Onoe; his contribution 36 * is greatly appreciated. 37 */ 38 39 #include "opt_inet.h" 40 #include "opt_ath.h" 41 /* 42 * This is needed for register operations which are performed 43 * by the driver - eg, calls to ath_hal_gettsf32(). 44 */ 45 #include "opt_ah.h" 46 #include "opt_wlan.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/sysctl.h> 51 #include <sys/mbuf.h> 52 #include <sys/malloc.h> 53 #include <sys/lock.h> 54 #include <sys/mutex.h> 55 #include <sys/kernel.h> 56 #include <sys/socket.h> 57 #include <sys/sockio.h> 58 #include <sys/errno.h> 59 #include <sys/callout.h> 60 #include <sys/bus.h> 61 #include <sys/endian.h> 62 #include <sys/kthread.h> 63 #include <sys/taskqueue.h> 64 #include <sys/priv.h> 65 #include <sys/module.h> 66 #include <sys/ktr.h> 67 68 #include <net/if.h> 69 #include <net/if_dl.h> 70 #include <net/if_media.h> 71 #include <net/if_types.h> 72 #include <net/if_arp.h> 73 #include <net/ethernet.h> 74 #include <net/if_llc.h> 75 76 #include <netproto/802_11/ieee80211_var.h> 77 #include <netproto/802_11/ieee80211_regdomain.h> 78 #ifdef IEEE80211_SUPPORT_SUPERG 79 #include <netproto/802_11/ieee80211_superg.h> 80 #endif 81 #ifdef IEEE80211_SUPPORT_TDMA 82 #include <netproto/802_11/ieee80211_tdma.h> 83 #endif 84 85 #include <net/bpf.h> 86 87 #ifdef INET 88 #include <netinet/in.h> 89 #include <netinet/if_ether.h> 90 #endif 91 92 #include <dev/netif/ath/ath/if_athvar.h> 93 #include <dev/netif/ath/ath_hal/ah_devid.h> /* XXX for softled */ 94 #include <dev/netif/ath/ath_hal/ah_diagcodes.h> 95 96 #include <dev/netif/ath/ath/if_ath_debug.h> 97 #include <dev/netif/ath/ath/if_ath_misc.h> 98 99 #include <dev/netif/ath/ath/if_ath_led.h> 100 101 /* 102 * Software LED driver routines. 103 */ 104 105 /* 106 * XXX TODO: move the LED sysctls here. 107 */ 108 109 110 /* 111 * Configure the hardware for software and LED blinking. 112 * The user may choose to configure part of each, depending upon the 113 * NIC being used. 114 * 115 * This requires the configuration to be set before this function 116 * is called. 117 */ 118 void 119 ath_led_config(struct ath_softc *sc) 120 { 121 /* Software LED blinking - GPIO controlled LED */ 122 if (sc->sc_softled) { 123 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin, 124 HAL_GPIO_OUTPUT_MUX_AS_OUTPUT); 125 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon); 126 } 127 128 /* Hardware LED blinking - MAC controlled LED */ 129 if (sc->sc_hardled) { 130 /* 131 * Only enable each LED if required. 132 * 133 * Some NICs only have one LED connected; others may 134 * have GPIO1/GPIO2 connected to other hardware. 135 */ 136 if (sc->sc_led_pwr_pin > 0) 137 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_pwr_pin, 138 HAL_GPIO_OUTPUT_MUX_MAC_POWER_LED); 139 if (sc->sc_led_net_pin > 0) 140 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_net_pin, 141 HAL_GPIO_OUTPUT_MUX_MAC_NETWORK_LED); 142 } 143 } 144 145 static void 146 ath_led_done(void *arg) 147 { 148 struct ath_softc *sc = arg; 149 150 wlan_serialize_enter(); 151 sc->sc_blinking = 0; 152 wlan_serialize_exit(); 153 } 154 155 /* 156 * Turn the LED off: flip the pin and then set a timer so no 157 * update will happen for the specified duration. 158 */ 159 static void 160 ath_led_off(void *arg) 161 { 162 struct ath_softc *sc = arg; 163 164 wlan_serialize_enter(); 165 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon); 166 callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, ath_led_done, sc); 167 wlan_serialize_exit(); 168 } 169 170 /* 171 * Blink the LED according to the specified on/off times. 172 */ 173 static void 174 ath_led_blink(struct ath_softc *sc, int on, int off) 175 { 176 DPRINTF(sc, ATH_DEBUG_LED, "%s: on %u off %u\n", __func__, on, off); 177 wlan_serialize_enter(); 178 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, sc->sc_ledon); 179 sc->sc_blinking = 1; 180 sc->sc_ledoff = off; 181 callout_reset(&sc->sc_ledtimer, on, ath_led_off, sc); 182 wlan_serialize_exit(); 183 } 184 185 void 186 ath_led_event(struct ath_softc *sc, int rix) 187 { 188 sc->sc_ledevent = ticks; /* time of last event */ 189 if (sc->sc_blinking) /* don't interrupt active blink */ 190 return; 191 ath_led_blink(sc, sc->sc_hwmap[rix].ledon, sc->sc_hwmap[rix].ledoff); 192 } 193