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 __FBSDID("$FreeBSD$"); 32 33 /* 34 * Driver for the Atheros Wireless LAN controller. 35 * 36 * This software is derived from work of Atsushi Onoe; his contribution 37 * is greatly appreciated. 38 */ 39 40 #include "opt_inet.h" 41 #include "opt_ath.h" 42 /* 43 * This is needed for register operations which are performed 44 * by the driver - eg, calls to ath_hal_gettsf32(). 45 */ 46 #include "opt_ah.h" 47 #include "opt_wlan.h" 48 49 #include <sys/param.h> 50 #include <sys/systm.h> 51 #include <sys/sysctl.h> 52 #include <sys/mbuf.h> 53 #include <sys/malloc.h> 54 #include <sys/lock.h> 55 #include <sys/mutex.h> 56 #include <sys/kernel.h> 57 #include <sys/socket.h> 58 #include <sys/sockio.h> 59 #include <sys/errno.h> 60 #include <sys/callout.h> 61 #include <sys/bus.h> 62 #include <sys/endian.h> 63 #include <sys/kthread.h> 64 #include <sys/taskqueue.h> 65 #include <sys/priv.h> 66 #include <sys/module.h> 67 #include <sys/ktr.h> 68 69 #include <net/if.h> 70 #include <net/if_dl.h> 71 #include <net/if_media.h> 72 #include <net/if_types.h> 73 #include <net/if_arp.h> 74 #include <net/ethernet.h> 75 #include <net/if_llc.h> 76 77 #include <netproto/802_11/ieee80211_var.h> 78 #include <netproto/802_11/ieee80211_regdomain.h> 79 #ifdef IEEE80211_SUPPORT_SUPERG 80 #include <netproto/802_11/ieee80211_superg.h> 81 #endif 82 #ifdef IEEE80211_SUPPORT_TDMA 83 #include <netproto/802_11/ieee80211_tdma.h> 84 #endif 85 86 #include <net/bpf.h> 87 88 #ifdef INET 89 #include <netinet/in.h> 90 #include <netinet/if_ether.h> 91 #endif 92 93 #include <dev/netif/ath/ath/if_athvar.h> 94 #include <dev/netif/ath/ath_hal/ah_devid.h> /* XXX for softled */ 95 #include <dev/netif/ath/ath_hal/ah_diagcodes.h> 96 97 #include <dev/netif/ath/ath/if_ath_debug.h> 98 #include <dev/netif/ath/ath/if_ath_misc.h> 99 100 #include <dev/netif/ath/ath/if_ath_led.h> 101 102 /* 103 * Software LED driver routines. 104 */ 105 106 /* 107 * XXX TODO: move the LED sysctls here. 108 */ 109 110 111 /* 112 * Configure the hardware for software and LED blinking. 113 * The user may choose to configure part of each, depending upon the 114 * NIC being used. 115 * 116 * This requires the configuration to be set before this function 117 * is called. 118 */ 119 void 120 ath_led_config(struct ath_softc *sc) 121 { 122 123 ATH_LOCK(sc); 124 ath_power_set_power_state(sc, HAL_PM_AWAKE); 125 ATH_UNLOCK(sc); 126 127 /* Software LED blinking - GPIO controlled LED */ 128 if (sc->sc_softled) { 129 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin, 130 HAL_GPIO_OUTPUT_MUX_AS_OUTPUT); 131 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon); 132 } 133 134 /* Hardware LED blinking - MAC controlled LED */ 135 if (sc->sc_hardled) { 136 /* 137 * Only enable each LED if required. 138 * 139 * Some NICs only have one LED connected; others may 140 * have GPIO1/GPIO2 connected to other hardware. 141 */ 142 if (sc->sc_led_pwr_pin > 0) 143 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_pwr_pin, 144 HAL_GPIO_OUTPUT_MUX_MAC_POWER_LED); 145 if (sc->sc_led_net_pin > 0) 146 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_net_pin, 147 HAL_GPIO_OUTPUT_MUX_MAC_NETWORK_LED); 148 } 149 150 ATH_LOCK(sc); 151 ath_power_restore_power_state(sc); 152 ATH_UNLOCK(sc); 153 } 154 155 static void 156 ath_led_done(void *arg) 157 { 158 struct ath_softc *sc = arg; 159 160 sc->sc_blinking = 0; 161 } 162 163 /* 164 * Turn the LED off: flip the pin and then set a timer so no 165 * update will happen for the specified duration. 166 */ 167 static void 168 ath_led_off(void *arg) 169 { 170 struct ath_softc *sc = arg; 171 172 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon); 173 callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, ath_led_done, sc); 174 } 175 176 /* 177 * Blink the LED according to the specified on/off times. 178 */ 179 static void 180 ath_led_blink(struct ath_softc *sc, int on, int off) 181 { 182 DPRINTF(sc, ATH_DEBUG_LED, "%s: on %u off %u\n", __func__, on, off); 183 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, sc->sc_ledon); 184 sc->sc_blinking = 1; 185 sc->sc_ledoff = off; 186 callout_reset(&sc->sc_ledtimer, on, ath_led_off, sc); 187 } 188 189 void 190 ath_led_event(struct ath_softc *sc, int rix) 191 { 192 sc->sc_ledevent = ticks; /* time of last event */ 193 if (sc->sc_blinking) /* don't interrupt active blink */ 194 return; 195 ath_led_blink(sc, sc->sc_hwmap[rix].ledon, sc->sc_hwmap[rix].ledoff); 196 } 197