1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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__FBSDID("$FreeBSD: releng/12.0/sys/dev/ath/if_ath_led.c 326255 2017-11-27 14:52:40Z pfg $"); 34 35/* 36 * Driver for the Atheros Wireless LAN controller. 37 * 38 * This software is derived from work of Atsushi Onoe; his contribution 39 * is greatly appreciated. 40 */ 41 42#include "opt_inet.h" 43#include "opt_ath.h" 44/* 45 * This is needed for register operations which are performed 46 * by the driver - eg, calls to ath_hal_gettsf32(). 47 */ 48#include "opt_ah.h" 49#include "opt_wlan.h" 50 51#include <sys/param.h> 52#include <sys/systm.h> 53#include <sys/sysctl.h> 54#include <sys/mbuf.h> 55#include <sys/malloc.h> 56#include <sys/lock.h> 57#include <sys/mutex.h> 58#include <sys/kernel.h> 59#include <sys/socket.h> 60#include <sys/sockio.h> 61#include <sys/errno.h> 62#include <sys/callout.h> 63#include <sys/bus.h> 64#include <sys/endian.h> 65#include <sys/kthread.h> 66#include <sys/taskqueue.h> 67#include <sys/priv.h> 68#include <sys/module.h> 69#include <sys/ktr.h> 70#include <sys/smp.h> /* for mp_ncpus */ 71 72#include <machine/bus.h> 73 74#include <net/if.h> 75#include <net/if_dl.h> 76#include <net/if_media.h> 77#include <net/if_types.h> 78#include <net/if_arp.h> 79#include <net/ethernet.h> 80#include <net/if_llc.h> 81 82#include <net80211/ieee80211_var.h> 83#include <net80211/ieee80211_regdomain.h> 84#ifdef IEEE80211_SUPPORT_SUPERG 85#include <net80211/ieee80211_superg.h> 86#endif 87#ifdef IEEE80211_SUPPORT_TDMA 88#include <net80211/ieee80211_tdma.h> 89#endif 90 91#include <net/bpf.h> 92 93#ifdef INET 94#include <netinet/in.h> 95#include <netinet/if_ether.h> 96#endif 97 98#include <dev/ath/if_athvar.h> 99#include <dev/ath/ath_hal/ah_devid.h> /* XXX for softled */ 100#include <dev/ath/ath_hal/ah_diagcodes.h> 101 102#include <dev/ath/if_ath_debug.h> 103#include <dev/ath/if_ath_misc.h> 104 105#include <dev/ath/if_ath_led.h> 106 107/* 108 * Software LED driver routines. 109 */ 110 111/* 112 * XXX TODO: move the LED sysctls here. 113 */ 114 115/* 116 * Configure the hardware for software and LED blinking. 117 * The user may choose to configure part of each, depending upon the 118 * NIC being used. 119 * 120 * This requires the configuration to be set before this function 121 * is called. 122 */ 123void 124ath_led_config(struct ath_softc *sc) 125{ 126 127 ATH_LOCK(sc); 128 ath_power_set_power_state(sc, HAL_PM_AWAKE); 129 ATH_UNLOCK(sc); 130 131 /* Software LED blinking - GPIO controlled LED */ 132 if (sc->sc_softled) { 133 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin, 134 HAL_GPIO_OUTPUT_MUX_AS_OUTPUT); 135 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon); 136 } 137 138 /* Hardware LED blinking - MAC controlled LED */ 139 if (sc->sc_hardled) { 140 /* 141 * Only enable each LED if required. 142 * 143 * Some NICs only have one LED connected; others may 144 * have GPIO1/GPIO2 connected to other hardware. 145 */ 146 if (sc->sc_led_pwr_pin > 0) 147 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_pwr_pin, 148 HAL_GPIO_OUTPUT_MUX_MAC_POWER_LED); 149 if (sc->sc_led_net_pin > 0) 150 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_net_pin, 151 HAL_GPIO_OUTPUT_MUX_MAC_NETWORK_LED); 152 } 153 154 ATH_LOCK(sc); 155 ath_power_restore_power_state(sc); 156 ATH_UNLOCK(sc); 157} 158 159static void 160ath_led_done(void *arg) 161{ 162 struct ath_softc *sc = arg; 163 164 sc->sc_blinking = 0; 165} 166 167/* 168 * Turn the LED off: flip the pin and then set a timer so no 169 * update will happen for the specified duration. 170 */ 171static void 172ath_led_off(void *arg) 173{ 174 struct ath_softc *sc = arg; 175 176 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon); 177 callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, ath_led_done, sc); 178} 179 180/* 181 * Blink the LED according to the specified on/off times. 182 */ 183static void 184ath_led_blink(struct ath_softc *sc, int on, int off) 185{ 186 DPRINTF(sc, ATH_DEBUG_LED, "%s: on %u off %u\n", __func__, on, off); 187 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, sc->sc_ledon); 188 sc->sc_blinking = 1; 189 sc->sc_ledoff = off; 190 callout_reset(&sc->sc_ledtimer, on, ath_led_off, sc); 191} 192 193void 194ath_led_event(struct ath_softc *sc, int rix) 195{ 196 sc->sc_ledevent = ticks; /* time of last event */ 197 if (sc->sc_blinking) /* don't interrupt active blink */ 198 return; 199 ath_led_blink(sc, sc->sc_hwmap[rix].ledon, sc->sc_hwmap[rix].ledoff); 200} 201