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, MERCHANTABILITY
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/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/caps.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
ath_led_config(struct ath_softc * sc)119 ath_led_config(struct ath_softc *sc)
120 {
121
122 ATH_LOCK(sc);
123 ath_power_set_power_state(sc, HAL_PM_AWAKE);
124 ATH_UNLOCK(sc);
125
126 /* Software LED blinking - GPIO controlled LED */
127 if (sc->sc_softled) {
128 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin,
129 HAL_GPIO_OUTPUT_MUX_AS_OUTPUT);
130 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon);
131 }
132
133 /* Hardware LED blinking - MAC controlled LED */
134 if (sc->sc_hardled) {
135 /*
136 * Only enable each LED if required.
137 *
138 * Some NICs only have one LED connected; others may
139 * have GPIO1/GPIO2 connected to other hardware.
140 */
141 if (sc->sc_led_pwr_pin > 0)
142 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_pwr_pin,
143 HAL_GPIO_OUTPUT_MUX_MAC_POWER_LED);
144 if (sc->sc_led_net_pin > 0)
145 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_net_pin,
146 HAL_GPIO_OUTPUT_MUX_MAC_NETWORK_LED);
147 }
148
149 ATH_LOCK(sc);
150 ath_power_restore_power_state(sc);
151 ATH_UNLOCK(sc);
152 }
153
154 static void
ath_led_done(void * arg)155 ath_led_done(void *arg)
156 {
157 struct ath_softc *sc = arg;
158
159 sc->sc_blinking = 0;
160 }
161
162 /*
163 * Turn the LED off: flip the pin and then set a timer so no
164 * update will happen for the specified duration.
165 */
166 static void
ath_led_off(void * arg)167 ath_led_off(void *arg)
168 {
169 struct ath_softc *sc = arg;
170
171 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon);
172 callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, ath_led_done, sc);
173 }
174
175 /*
176 * Blink the LED according to the specified on/off times.
177 */
178 static void
ath_led_blink(struct ath_softc * sc,int on,int off)179 ath_led_blink(struct ath_softc *sc, int on, int off)
180 {
181 DPRINTF(sc, ATH_DEBUG_LED, "%s: on %u off %u\n", __func__, on, off);
182 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, sc->sc_ledon);
183 sc->sc_blinking = 1;
184 sc->sc_ledoff = off;
185 callout_reset(&sc->sc_ledtimer, on, ath_led_off, sc);
186 }
187
188 void
ath_led_event(struct ath_softc * sc,int rix)189 ath_led_event(struct ath_softc *sc, int rix)
190 {
191 sc->sc_ledevent = ticks; /* time of last event */
192 if (sc->sc_blinking) /* don't interrupt active blink */
193 return;
194 ath_led_blink(sc, sc->sc_hwmap[rix].ledon, sc->sc_hwmap[rix].ledoff);
195 }
196