if_ath_led.c revision 228888
1228887Sadrian/*- 2228887Sadrian * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting 3228887Sadrian * All rights reserved. 4228887Sadrian * 5228887Sadrian * Redistribution and use in source and binary forms, with or without 6228887Sadrian * modification, are permitted provided that the following conditions 7228887Sadrian * are met: 8228887Sadrian * 1. Redistributions of source code must retain the above copyright 9228887Sadrian * notice, this list of conditions and the following disclaimer, 10228887Sadrian * without modification. 11228887Sadrian * 2. Redistributions in binary form must reproduce at minimum a disclaimer 12228887Sadrian * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 13228887Sadrian * redistribution must be conditioned upon including a substantially 14228887Sadrian * similar Disclaimer requirement for further binary redistribution. 15228887Sadrian * 16228887Sadrian * NO WARRANTY 17228887Sadrian * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18228887Sadrian * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19228887Sadrian * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 20228887Sadrian * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 21228887Sadrian * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 22228887Sadrian * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23228887Sadrian * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24228887Sadrian * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 25228887Sadrian * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26228887Sadrian * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 27228887Sadrian * THE POSSIBILITY OF SUCH DAMAGES. 28228887Sadrian */ 29228887Sadrian 30228887Sadrian#include <sys/cdefs.h> 31228887Sadrian__FBSDID("$FreeBSD: head/sys/dev/ath/if_ath_led.c 228888 2011-12-26 05:46:22Z adrian $"); 32228887Sadrian 33228887Sadrian/* 34228887Sadrian * Driver for the Atheros Wireless LAN controller. 35228887Sadrian * 36228887Sadrian * This software is derived from work of Atsushi Onoe; his contribution 37228887Sadrian * is greatly appreciated. 38228887Sadrian */ 39228887Sadrian 40228887Sadrian#include "opt_inet.h" 41228887Sadrian#include "opt_ath.h" 42228887Sadrian/* 43228887Sadrian * This is needed for register operations which are performed 44228887Sadrian * by the driver - eg, calls to ath_hal_gettsf32(). 45228887Sadrian */ 46228887Sadrian#include "opt_ah.h" 47228887Sadrian#include "opt_wlan.h" 48228887Sadrian 49228887Sadrian#include <sys/param.h> 50228887Sadrian#include <sys/systm.h> 51228887Sadrian#include <sys/sysctl.h> 52228887Sadrian#include <sys/mbuf.h> 53228887Sadrian#include <sys/malloc.h> 54228887Sadrian#include <sys/lock.h> 55228887Sadrian#include <sys/mutex.h> 56228887Sadrian#include <sys/kernel.h> 57228887Sadrian#include <sys/socket.h> 58228887Sadrian#include <sys/sockio.h> 59228887Sadrian#include <sys/errno.h> 60228887Sadrian#include <sys/callout.h> 61228887Sadrian#include <sys/bus.h> 62228887Sadrian#include <sys/endian.h> 63228887Sadrian#include <sys/kthread.h> 64228887Sadrian#include <sys/taskqueue.h> 65228887Sadrian#include <sys/priv.h> 66228887Sadrian#include <sys/module.h> 67228887Sadrian#include <sys/ktr.h> 68228887Sadrian#include <sys/smp.h> /* for mp_ncpus */ 69228887Sadrian 70228887Sadrian#include <machine/bus.h> 71228887Sadrian 72228887Sadrian#include <net/if.h> 73228887Sadrian#include <net/if_dl.h> 74228887Sadrian#include <net/if_media.h> 75228887Sadrian#include <net/if_types.h> 76228887Sadrian#include <net/if_arp.h> 77228887Sadrian#include <net/ethernet.h> 78228887Sadrian#include <net/if_llc.h> 79228887Sadrian 80228887Sadrian#include <net80211/ieee80211_var.h> 81228887Sadrian#include <net80211/ieee80211_regdomain.h> 82228887Sadrian#ifdef IEEE80211_SUPPORT_SUPERG 83228887Sadrian#include <net80211/ieee80211_superg.h> 84228887Sadrian#endif 85228887Sadrian#ifdef IEEE80211_SUPPORT_TDMA 86228887Sadrian#include <net80211/ieee80211_tdma.h> 87228887Sadrian#endif 88228887Sadrian 89228887Sadrian#include <net/bpf.h> 90228887Sadrian 91228887Sadrian#ifdef INET 92228887Sadrian#include <netinet/in.h> 93228887Sadrian#include <netinet/if_ether.h> 94228887Sadrian#endif 95228887Sadrian 96228887Sadrian#include <dev/ath/if_athvar.h> 97228887Sadrian#include <dev/ath/ath_hal/ah_devid.h> /* XXX for softled */ 98228887Sadrian#include <dev/ath/ath_hal/ah_diagcodes.h> 99228887Sadrian 100228887Sadrian#include <dev/ath/if_ath_debug.h> 101228887Sadrian#include <dev/ath/if_ath_misc.h> 102228887Sadrian 103228887Sadrian#include <dev/ath/if_ath_led.h> 104228887Sadrian 105228887Sadrian/* 106228887Sadrian * Software LED driver routines. 107228887Sadrian */ 108228887Sadrian 109228887Sadrian/* 110228887Sadrian * XXX TODO: move the LED sysctls here. 111228887Sadrian */ 112228887Sadrian 113228888Sadrian 114228888Sadrian/* 115228888Sadrian * Configure the hardware for software and/or LED blinking. 116228888Sadrian * 117228888Sadrian * This requires the configuration to be set beforehand. 118228888Sadrian */ 119228888Sadrianvoid 120228888Sadrianath_led_config(struct ath_softc *sc) 121228888Sadrian{ 122228888Sadrian /* Software LED blinking - GPIO controlled LED */ 123228888Sadrian if (sc->sc_softled) { 124228888Sadrian ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin, 125228888Sadrian HAL_GPIO_MUX_MAC_NETWORK_LED); 126228888Sadrian ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon); 127228888Sadrian return; 128228888Sadrian } 129228888Sadrian 130228888Sadrian /* Hardware LED blinking - MAC controlled LED */ 131228888Sadrian} 132228888Sadrian 133228887Sadrianstatic void 134228887Sadrianath_led_done(void *arg) 135228887Sadrian{ 136228887Sadrian struct ath_softc *sc = arg; 137228887Sadrian 138228887Sadrian sc->sc_blinking = 0; 139228887Sadrian} 140228887Sadrian 141228887Sadrian/* 142228887Sadrian * Turn the LED off: flip the pin and then set a timer so no 143228887Sadrian * update will happen for the specified duration. 144228887Sadrian */ 145228887Sadrianstatic void 146228887Sadrianath_led_off(void *arg) 147228887Sadrian{ 148228887Sadrian struct ath_softc *sc = arg; 149228887Sadrian 150228887Sadrian ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon); 151228887Sadrian callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, ath_led_done, sc); 152228887Sadrian} 153228887Sadrian 154228887Sadrian/* 155228887Sadrian * Blink the LED according to the specified on/off times. 156228887Sadrian */ 157228887Sadrianstatic void 158228887Sadrianath_led_blink(struct ath_softc *sc, int on, int off) 159228887Sadrian{ 160228887Sadrian DPRINTF(sc, ATH_DEBUG_LED, "%s: on %u off %u\n", __func__, on, off); 161228887Sadrian ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, sc->sc_ledon); 162228887Sadrian sc->sc_blinking = 1; 163228887Sadrian sc->sc_ledoff = off; 164228887Sadrian callout_reset(&sc->sc_ledtimer, on, ath_led_off, sc); 165228887Sadrian} 166228887Sadrian 167228887Sadrianvoid 168228887Sadrianath_led_event(struct ath_softc *sc, int rix) 169228887Sadrian{ 170228887Sadrian sc->sc_ledevent = ticks; /* time of last event */ 171228887Sadrian if (sc->sc_blinking) /* don't interrupt active blink */ 172228887Sadrian return; 173228887Sadrian ath_led_blink(sc, sc->sc_hwmap[rix].ledon, sc->sc_hwmap[rix].ledoff); 174228887Sadrian} 175