1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer, 12 * without modification. 13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 15 * redistribution must be conditioned upon including a substantially 16 * similar Disclaimer requirement for further binary redistribution. 17 * 18 * NO WARRANTY 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 23 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 27 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 29 * THE POSSIBILITY OF SUCH DAMAGES. 30 */ 31 32 #include <sys/cdefs.h> 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 #include <sys/smp.h> /* for mp_ncpus */ 69 70 #include <machine/bus.h> 71 72 #include <net/if.h> 73 #include <net/if_dl.h> 74 #include <net/if_media.h> 75 #include <net/if_types.h> 76 #include <net/if_arp.h> 77 #include <net/ethernet.h> 78 #include <net/if_llc.h> 79 #include <net/if_var.h> 80 81 #include <net80211/ieee80211_var.h> 82 #include <net80211/ieee80211_regdomain.h> 83 #ifdef IEEE80211_SUPPORT_SUPERG 84 #include <net80211/ieee80211_superg.h> 85 #endif 86 #ifdef IEEE80211_SUPPORT_TDMA 87 #include <net80211/ieee80211_tdma.h> 88 #endif 89 90 #include <net/bpf.h> 91 92 #ifdef INET 93 #include <netinet/in.h> 94 #include <netinet/if_ether.h> 95 #endif 96 97 #include <dev/ath/if_athvar.h> 98 #include <dev/ath/ath_hal/ah_devid.h> /* XXX for softled */ 99 #include <dev/ath/ath_hal/ah_diagcodes.h> 100 101 #include <dev/ath/if_ath_debug.h> 102 #include <dev/ath/if_ath_misc.h> 103 104 #include <dev/ath/if_ath_led.h> 105 106 /* 107 * Software LED driver routines. 108 */ 109 110 /* 111 * XXX TODO: move the LED sysctls here. 112 */ 113 114 /* 115 * Configure the hardware for software and LED blinking. 116 * The user may choose to configure part of each, depending upon the 117 * NIC being used. 118 * 119 * This requires the configuration to be set before this function 120 * is called. 121 */ 122 void 123 ath_led_config(struct ath_softc *sc) 124 { 125 126 ATH_LOCK(sc); 127 ath_power_set_power_state(sc, HAL_PM_AWAKE); 128 ATH_UNLOCK(sc); 129 130 /* Software LED blinking - GPIO controlled LED */ 131 if (sc->sc_softled) { 132 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin, 133 HAL_GPIO_OUTPUT_MUX_AS_OUTPUT); 134 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon); 135 } 136 137 /* Hardware LED blinking - MAC controlled LED */ 138 if (sc->sc_hardled) { 139 /* 140 * Only enable each LED if required. 141 * 142 * Some NICs only have one LED connected; others may 143 * have GPIO1/GPIO2 connected to other hardware. 144 */ 145 if (sc->sc_led_pwr_pin > 0) 146 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_pwr_pin, 147 HAL_GPIO_OUTPUT_MUX_MAC_POWER_LED); 148 if (sc->sc_led_net_pin > 0) 149 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_net_pin, 150 HAL_GPIO_OUTPUT_MUX_MAC_NETWORK_LED); 151 } 152 153 ATH_LOCK(sc); 154 ath_power_restore_power_state(sc); 155 ATH_UNLOCK(sc); 156 } 157 158 static void 159 ath_led_done(void *arg) 160 { 161 struct ath_softc *sc = arg; 162 163 sc->sc_blinking = 0; 164 } 165 166 /* 167 * Turn the LED off: flip the pin and then set a timer so no 168 * update will happen for the specified duration. 169 */ 170 static void 171 ath_led_off(void *arg) 172 { 173 struct ath_softc *sc = arg; 174 175 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon); 176 callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, ath_led_done, sc); 177 } 178 179 /* 180 * Blink the LED according to the specified on/off times. 181 */ 182 static void 183 ath_led_blink(struct ath_softc *sc, int on, int off) 184 { 185 DPRINTF(sc, ATH_DEBUG_LED, "%s: on %u off %u\n", __func__, on, off); 186 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, sc->sc_ledon); 187 sc->sc_blinking = 1; 188 sc->sc_ledoff = off; 189 callout_reset(&sc->sc_ledtimer, on, ath_led_off, sc); 190 } 191 192 void 193 ath_led_event(struct ath_softc *sc, int rix) 194 { 195 sc->sc_ledevent = ticks; /* time of last event */ 196 if (sc->sc_blinking) /* don't interrupt active blink */ 197 return; 198 ath_led_blink(sc, sc->sc_hwmap[rix].ledon, sc->sc_hwmap[rix].ledoff); 199 } 200