1 /* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */
2
3 /*
4 * Copyright (c) 2014 genua mbh <info@genua.de>
5 * Copyright (c) 2014 Fixup Software Ltd.
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 /*-
21 * Based on BSD-licensed source modules in the Linux iwlwifi driver,
22 * which were used as the reference documentation for this implementation.
23 *
24 * Driver version we are currently based off of is
25 * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd)
26 *
27 ***********************************************************************
28 *
29 * This file is provided under a dual BSD/GPLv2 license. When using or
30 * redistributing this file, you may do so under either license.
31 *
32 * GPL LICENSE SUMMARY
33 *
34 * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
35 *
36 * This program is free software; you can redistribute it and/or modify
37 * it under the terms of version 2 of the GNU General Public License as
38 * published by the Free Software Foundation.
39 *
40 * This program is distributed in the hope that it will be useful, but
41 * WITHOUT ANY WARRANTY; without even the implied warranty of
42 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
43 * General Public License for more details.
44 *
45 * You should have received a copy of the GNU General Public License
46 * along with this program; if not, write to the Free Software
47 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
48 * USA
49 *
50 * The full GNU General Public License is included in this distribution
51 * in the file called COPYING.
52 *
53 * Contact Information:
54 * Intel Linux Wireless <ilw@linux.intel.com>
55 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
56 *
57 *
58 * BSD LICENSE
59 *
60 * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
61 * All rights reserved.
62 *
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
65 * are met:
66 *
67 * * Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
69 * * Redistributions in binary form must reproduce the above copyright
70 * notice, this list of conditions and the following disclaimer in
71 * the documentation and/or other materials provided with the
72 * distribution.
73 * * Neither the name Intel Corporation nor the names of its
74 * contributors may be used to endorse or promote products derived
75 * from this software without specific prior written permission.
76 *
77 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
78 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
79 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
80 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
81 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
82 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
83 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
84 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
85 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
86 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
87 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
88 */
89 #include <sys/cdefs.h>
90 #include "opt_wlan.h"
91 #include "opt_iwm.h"
92
93 #include <sys/param.h>
94 #include <sys/bus.h>
95 #include <sys/endian.h>
96 #include <sys/firmware.h>
97 #include <sys/kernel.h>
98 #include <sys/malloc.h>
99 #include <sys/mbuf.h>
100 #include <sys/mutex.h>
101 #include <sys/module.h>
102 #include <sys/proc.h>
103 #include <sys/rman.h>
104 #include <sys/socket.h>
105 #include <sys/sockio.h>
106 #include <sys/sysctl.h>
107 #include <sys/linker.h>
108
109 #include <machine/endian.h>
110 #include <machine/bus.h>
111
112 #include <net/bpf.h>
113
114 #include <net/if.h>
115 #include <net/if_var.h>
116 #include <net/if_arp.h>
117 #include <net/ethernet.h>
118 #include <net/if_dl.h>
119 #include <net/if_media.h>
120 #include <net/if_types.h>
121
122 #include <netinet/in.h>
123 #include <netinet/in_systm.h>
124 #include <netinet/if_ether.h>
125 #include <netinet/ip.h>
126
127 #include <net80211/ieee80211_var.h>
128 #include <net80211/ieee80211_regdomain.h>
129 #include <net80211/ieee80211_ratectl.h>
130 #include <net80211/ieee80211_radiotap.h>
131
132 #include <dev/iwm/if_iwmreg.h>
133 #include <dev/iwm/if_iwmvar.h>
134 #include <dev/iwm/if_iwm_debug.h>
135 #include <dev/iwm/if_iwm_util.h>
136 #include <dev/iwm/if_iwm_led.h>
137
138 /* Set led register on */
139 void
iwm_led_enable(struct iwm_softc * sc)140 iwm_led_enable(struct iwm_softc *sc)
141 {
142 IWM_WRITE(sc, IWM_CSR_LED_REG, IWM_CSR_LED_REG_TURN_ON);
143 }
144
145 /* Set led register off */
146 void
iwm_led_disable(struct iwm_softc * sc)147 iwm_led_disable(struct iwm_softc *sc)
148 {
149 IWM_WRITE(sc, IWM_CSR_LED_REG, IWM_CSR_LED_REG_TURN_OFF);
150 }
151
152 static int
iwm_led_is_enabled(struct iwm_softc * sc)153 iwm_led_is_enabled(struct iwm_softc *sc)
154 {
155 return (IWM_READ(sc, IWM_CSR_LED_REG) == IWM_CSR_LED_REG_TURN_ON);
156 }
157
158 static void
iwm_led_blink_timeout(void * arg)159 iwm_led_blink_timeout(void *arg)
160 {
161 struct iwm_softc *sc = arg;
162
163 if (sc->sc_attached == 0)
164 return;
165
166 if (iwm_led_is_enabled(sc))
167 iwm_led_disable(sc);
168 else
169 iwm_led_enable(sc);
170
171 callout_reset(&sc->sc_led_blink_to, (200 * hz) / 1000,
172 iwm_led_blink_timeout, sc);
173 }
174
175 void
iwm_led_blink_start(struct iwm_softc * sc)176 iwm_led_blink_start(struct iwm_softc *sc)
177 {
178 callout_reset(&sc->sc_led_blink_to, 0, iwm_led_blink_timeout, sc);
179 }
180
181 void
iwm_led_blink_stop(struct iwm_softc * sc)182 iwm_led_blink_stop(struct iwm_softc *sc)
183 {
184 callout_stop(&sc->sc_led_blink_to);
185 iwm_led_disable(sc);
186 }
187