blob: a82025121345bdad0dc1d84f425d640fa7010a30 [file] [log] [blame]
David Härdeman829ba9f2010-11-19 20:43:27 -03001/* ir-raw.c - handle IR pulse/space events
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -03002 *
3 * Copyright (C) 2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation version 2 of the License.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14
Paul Gortmaker35a24632011-08-01 15:26:38 -040015#include <linux/export.h>
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030016#include <linux/kthread.h>
Maxim Levitsky45a568f2010-07-31 11:59:16 -030017#include <linux/mutex.h>
Stephen Rothwelldff65de2011-07-29 15:34:32 +100018#include <linux/kmod.h>
David Härdeman724e2492010-04-08 13:10:00 -030019#include <linux/sched.h>
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030020#include <linux/freezer.h>
Mauro Carvalho Chehabf62de672010-11-09 23:09:57 -030021#include "rc-core-priv.h"
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -030022
David Härdeman724e2492010-04-08 13:10:00 -030023/* Define the max number of pulse/space transitions to buffer */
24#define MAX_IR_EVENT_SIZE 512
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -030025
David Härdemanc2163692010-06-13 17:29:36 -030026/* Used to keep track of IR raw clients, protected by ir_raw_handler_lock */
27static LIST_HEAD(ir_raw_client_list);
28
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -030029/* Used to handle IR raw handler extensions */
Maxim Levitsky45a568f2010-07-31 11:59:16 -030030static DEFINE_MUTEX(ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -030031static LIST_HEAD(ir_raw_handler_list);
32static u64 available_protocols;
Mauro Carvalho Chehab93c312f2010-03-25 21:13:43 -030033
Mauro Carvalho Chehab5fa29892010-04-08 19:04:06 -030034#ifdef MODULE
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -030035/* Used to load the decoders */
36static struct work_struct wq_load;
Mauro Carvalho Chehab5fa29892010-04-08 19:04:06 -030037#endif
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -030038
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030039static int ir_raw_event_thread(void *data)
David Härdeman724e2492010-04-08 13:10:00 -030040{
David Härdemane40b1122010-04-15 18:46:00 -030041 struct ir_raw_event ev;
David Härdemanc2163692010-06-13 17:29:36 -030042 struct ir_raw_handler *handler;
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030043 struct ir_raw_event_ctrl *raw = (struct ir_raw_event_ctrl *)data;
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030044 int retval;
David Härdeman724e2492010-04-08 13:10:00 -030045
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030046 while (!kthread_should_stop()) {
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030047
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030048 spin_lock_irq(&raw->lock);
Srinivas Kandagatla004ac382012-03-20 14:05:40 -030049 retval = kfifo_len(&raw->kfifo);
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030050
Srinivas Kandagatla004ac382012-03-20 14:05:40 -030051 if (retval < sizeof(ev)) {
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030052 set_current_state(TASK_INTERRUPTIBLE);
53
54 if (kthread_should_stop())
55 set_current_state(TASK_RUNNING);
56
57 spin_unlock_irq(&raw->lock);
58 schedule();
59 continue;
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030060 }
61
Srinivas Kandagatla004ac382012-03-20 14:05:40 -030062 retval = kfifo_out(&raw->kfifo, &ev, sizeof(ev));
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030063 spin_unlock_irq(&raw->lock);
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030064
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030065 mutex_lock(&ir_raw_handler_lock);
66 list_for_each_entry(handler, &ir_raw_handler_list, list)
David Härdemand8b4b582010-10-29 16:08:23 -030067 handler->decode(raw->dev, ev);
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030068 raw->prev_ev = ev;
69 mutex_unlock(&ir_raw_handler_lock);
David Härdemanc2163692010-06-13 17:29:36 -030070 }
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030071
72 return 0;
David Härdeman724e2492010-04-08 13:10:00 -030073}
74
David Härdeman724e2492010-04-08 13:10:00 -030075/**
76 * ir_raw_event_store() - pass a pulse/space duration to the raw ir decoders
David Härdemand8b4b582010-10-29 16:08:23 -030077 * @dev: the struct rc_dev device descriptor
David Härdemane40b1122010-04-15 18:46:00 -030078 * @ev: the struct ir_raw_event descriptor of the pulse/space
David Härdeman724e2492010-04-08 13:10:00 -030079 *
80 * This routine (which may be called from an interrupt context) stores a
81 * pulse/space duration for the raw ir decoding state machines. Pulses are
82 * signalled as positive values and spaces as negative values. A zero value
83 * will reset the decoding state machines.
84 */
David Härdemand8b4b582010-10-29 16:08:23 -030085int ir_raw_event_store(struct rc_dev *dev, struct ir_raw_event *ev)
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -030086{
David Härdemand8b4b582010-10-29 16:08:23 -030087 if (!dev->raw)
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -030088 return -EINVAL;
89
Mauro Carvalho Chehab74c47922010-10-20 11:56:50 -030090 IR_dprintk(2, "sample: (%05dus %s)\n",
David Härdemand8b4b582010-10-29 16:08:23 -030091 TO_US(ev->duration), TO_STR(ev->pulse));
Maxim Levitsky510fcb72010-07-31 11:59:15 -030092
David Härdemand8b4b582010-10-29 16:08:23 -030093 if (kfifo_in(&dev->raw->kfifo, ev, sizeof(*ev)) != sizeof(*ev))
David Härdeman724e2492010-04-08 13:10:00 -030094 return -ENOMEM;
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -030095
David Härdeman724e2492010-04-08 13:10:00 -030096 return 0;
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -030097}
98EXPORT_SYMBOL_GPL(ir_raw_event_store);
99
David Härdeman724e2492010-04-08 13:10:00 -0300100/**
101 * ir_raw_event_store_edge() - notify raw ir decoders of the start of a pulse/space
David Härdemand8b4b582010-10-29 16:08:23 -0300102 * @dev: the struct rc_dev device descriptor
David Härdeman724e2492010-04-08 13:10:00 -0300103 * @type: the type of the event that has occurred
104 *
105 * This routine (which may be called from an interrupt context) is used to
106 * store the beginning of an ir pulse or space (or the start/end of ir
107 * reception) for the raw ir decoding state machines. This is used by
108 * hardware which does not provide durations directly but only interrupts
109 * (or similar events) on state change.
110 */
David Härdemand8b4b582010-10-29 16:08:23 -0300111int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type)
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300112{
David Härdeman724e2492010-04-08 13:10:00 -0300113 ktime_t now;
114 s64 delta; /* ns */
Mauro Carvalho Chehab83587832011-01-20 18:16:50 -0300115 DEFINE_IR_RAW_EVENT(ev);
David Härdeman724e2492010-04-08 13:10:00 -0300116 int rc = 0;
Jarod Wilson3f5c4c72011-06-16 16:18:37 -0300117 int delay;
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300118
David Härdemand8b4b582010-10-29 16:08:23 -0300119 if (!dev->raw)
David Härdeman724e2492010-04-08 13:10:00 -0300120 return -EINVAL;
121
122 now = ktime_get();
David Härdemand8b4b582010-10-29 16:08:23 -0300123 delta = ktime_to_ns(ktime_sub(now, dev->raw->last_event));
Jarod Wilson3f5c4c72011-06-16 16:18:37 -0300124 delay = MS_TO_NS(dev->input_dev->rep[REP_DELAY]);
David Härdeman724e2492010-04-08 13:10:00 -0300125
126 /* Check for a long duration since last event or if we're
127 * being called for the first time, note that delta can't
128 * possibly be negative.
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300129 */
Jarod Wilson3f5c4c72011-06-16 16:18:37 -0300130 if (delta > delay || !dev->raw->last_type)
David Härdeman724e2492010-04-08 13:10:00 -0300131 type |= IR_START_EVENT;
David Härdemane40b1122010-04-15 18:46:00 -0300132 else
133 ev.duration = delta;
David Härdeman724e2492010-04-08 13:10:00 -0300134
135 if (type & IR_START_EVENT)
David Härdemand8b4b582010-10-29 16:08:23 -0300136 ir_raw_event_reset(dev);
137 else if (dev->raw->last_type & IR_SPACE) {
David Härdemane40b1122010-04-15 18:46:00 -0300138 ev.pulse = false;
David Härdemand8b4b582010-10-29 16:08:23 -0300139 rc = ir_raw_event_store(dev, &ev);
140 } else if (dev->raw->last_type & IR_PULSE) {
David Härdemane40b1122010-04-15 18:46:00 -0300141 ev.pulse = true;
David Härdemand8b4b582010-10-29 16:08:23 -0300142 rc = ir_raw_event_store(dev, &ev);
David Härdemane40b1122010-04-15 18:46:00 -0300143 } else
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300144 return 0;
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300145
David Härdemand8b4b582010-10-29 16:08:23 -0300146 dev->raw->last_event = now;
147 dev->raw->last_type = type;
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300148 return rc;
149}
David Härdeman724e2492010-04-08 13:10:00 -0300150EXPORT_SYMBOL_GPL(ir_raw_event_store_edge);
151
152/**
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300153 * ir_raw_event_store_with_filter() - pass next pulse/space to decoders with some processing
David Härdemand8b4b582010-10-29 16:08:23 -0300154 * @dev: the struct rc_dev device descriptor
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300155 * @type: the type of the event that has occurred
156 *
157 * This routine (which may be called from an interrupt context) works
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300158 * in similar manner to ir_raw_event_store_edge.
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300159 * This routine is intended for devices with limited internal buffer
160 * It automerges samples of same type, and handles timeouts
161 */
David Härdemand8b4b582010-10-29 16:08:23 -0300162int ir_raw_event_store_with_filter(struct rc_dev *dev, struct ir_raw_event *ev)
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300163{
David Härdemand8b4b582010-10-29 16:08:23 -0300164 if (!dev->raw)
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300165 return -EINVAL;
166
167 /* Ignore spaces in idle mode */
David Härdemand8b4b582010-10-29 16:08:23 -0300168 if (dev->idle && !ev->pulse)
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300169 return 0;
David Härdemand8b4b582010-10-29 16:08:23 -0300170 else if (dev->idle)
171 ir_raw_event_set_idle(dev, false);
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300172
David Härdemand8b4b582010-10-29 16:08:23 -0300173 if (!dev->raw->this_ev.duration)
174 dev->raw->this_ev = *ev;
175 else if (ev->pulse == dev->raw->this_ev.pulse)
176 dev->raw->this_ev.duration += ev->duration;
177 else {
178 ir_raw_event_store(dev, &dev->raw->this_ev);
179 dev->raw->this_ev = *ev;
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300180 }
181
182 /* Enter idle mode if nessesary */
David Härdemand8b4b582010-10-29 16:08:23 -0300183 if (!ev->pulse && dev->timeout &&
184 dev->raw->this_ev.duration >= dev->timeout)
185 ir_raw_event_set_idle(dev, true);
186
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300187 return 0;
188}
189EXPORT_SYMBOL_GPL(ir_raw_event_store_with_filter);
190
Maxim Levitsky46519182010-10-16 19:56:28 -0300191/**
David Härdemand8b4b582010-10-29 16:08:23 -0300192 * ir_raw_event_set_idle() - provide hint to rc-core when the device is idle or not
193 * @dev: the struct rc_dev device descriptor
194 * @idle: whether the device is idle or not
Maxim Levitsky46519182010-10-16 19:56:28 -0300195 */
David Härdemand8b4b582010-10-29 16:08:23 -0300196void ir_raw_event_set_idle(struct rc_dev *dev, bool idle)
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300197{
David Härdemand8b4b582010-10-29 16:08:23 -0300198 if (!dev->raw)
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300199 return;
200
Maxim Levitsky46519182010-10-16 19:56:28 -0300201 IR_dprintk(2, "%s idle mode\n", idle ? "enter" : "leave");
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300202
203 if (idle) {
David Härdemand8b4b582010-10-29 16:08:23 -0300204 dev->raw->this_ev.timeout = true;
205 ir_raw_event_store(dev, &dev->raw->this_ev);
206 init_ir_raw_event(&dev->raw->this_ev);
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300207 }
Maxim Levitsky46519182010-10-16 19:56:28 -0300208
David Härdemand8b4b582010-10-29 16:08:23 -0300209 if (dev->s_idle)
210 dev->s_idle(dev, idle);
211
212 dev->idle = idle;
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300213}
214EXPORT_SYMBOL_GPL(ir_raw_event_set_idle);
215
216/**
David Härdeman724e2492010-04-08 13:10:00 -0300217 * ir_raw_event_handle() - schedules the decoding of stored ir data
David Härdemand8b4b582010-10-29 16:08:23 -0300218 * @dev: the struct rc_dev device descriptor
David Härdeman724e2492010-04-08 13:10:00 -0300219 *
David Härdemand8b4b582010-10-29 16:08:23 -0300220 * This routine will tell rc-core to start decoding stored ir data.
David Härdeman724e2492010-04-08 13:10:00 -0300221 */
David Härdemand8b4b582010-10-29 16:08:23 -0300222void ir_raw_event_handle(struct rc_dev *dev)
David Härdeman724e2492010-04-08 13:10:00 -0300223{
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -0300224 unsigned long flags;
David Härdeman724e2492010-04-08 13:10:00 -0300225
David Härdemand8b4b582010-10-29 16:08:23 -0300226 if (!dev->raw)
David Härdeman724e2492010-04-08 13:10:00 -0300227 return;
228
David Härdemand8b4b582010-10-29 16:08:23 -0300229 spin_lock_irqsave(&dev->raw->lock, flags);
230 wake_up_process(dev->raw->thread);
231 spin_unlock_irqrestore(&dev->raw->lock, flags);
David Härdeman724e2492010-04-08 13:10:00 -0300232}
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300233EXPORT_SYMBOL_GPL(ir_raw_event_handle);
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300234
David Härdeman667c9eb2010-06-13 17:29:31 -0300235/* used internally by the sysfs interface */
236u64
Randy Dunlap2dbd61b2011-01-09 00:53:53 -0300237ir_raw_get_allowed_protocols(void)
David Härdeman667c9eb2010-06-13 17:29:31 -0300238{
239 u64 protocols;
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300240 mutex_lock(&ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -0300241 protocols = available_protocols;
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300242 mutex_unlock(&ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -0300243 return protocols;
244}
245
246/*
247 * Used to (un)register raw event clients
248 */
David Härdemand8b4b582010-10-29 16:08:23 -0300249int ir_raw_event_register(struct rc_dev *dev)
David Härdeman667c9eb2010-06-13 17:29:31 -0300250{
David Härdeman667c9eb2010-06-13 17:29:31 -0300251 int rc;
David Härdemanc2163692010-06-13 17:29:36 -0300252 struct ir_raw_handler *handler;
David Härdeman667c9eb2010-06-13 17:29:31 -0300253
David Härdemand8b4b582010-10-29 16:08:23 -0300254 if (!dev)
255 return -EINVAL;
256
257 dev->raw = kzalloc(sizeof(*dev->raw), GFP_KERNEL);
258 if (!dev->raw)
David Härdeman667c9eb2010-06-13 17:29:31 -0300259 return -ENOMEM;
260
David Härdemand8b4b582010-10-29 16:08:23 -0300261 dev->raw->dev = dev;
262 dev->raw->enabled_protocols = ~0;
263 rc = kfifo_alloc(&dev->raw->kfifo,
264 sizeof(struct ir_raw_event) * MAX_IR_EVENT_SIZE,
David Härdeman667c9eb2010-06-13 17:29:31 -0300265 GFP_KERNEL);
David Härdemand8b4b582010-10-29 16:08:23 -0300266 if (rc < 0)
267 goto out;
David Härdeman667c9eb2010-06-13 17:29:31 -0300268
David Härdemand8b4b582010-10-29 16:08:23 -0300269 spin_lock_init(&dev->raw->lock);
270 dev->raw->thread = kthread_run(ir_raw_event_thread, dev->raw,
271 "rc%ld", dev->devno);
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -0300272
David Härdemand8b4b582010-10-29 16:08:23 -0300273 if (IS_ERR(dev->raw->thread)) {
274 rc = PTR_ERR(dev->raw->thread);
275 goto out;
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -0300276 }
277
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300278 mutex_lock(&ir_raw_handler_lock);
David Härdemand8b4b582010-10-29 16:08:23 -0300279 list_add_tail(&dev->raw->list, &ir_raw_client_list);
David Härdemanc2163692010-06-13 17:29:36 -0300280 list_for_each_entry(handler, &ir_raw_handler_list, list)
281 if (handler->raw_register)
David Härdemand8b4b582010-10-29 16:08:23 -0300282 handler->raw_register(dev);
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300283 mutex_unlock(&ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -0300284
David Härdemanc2163692010-06-13 17:29:36 -0300285 return 0;
David Härdemand8b4b582010-10-29 16:08:23 -0300286
287out:
288 kfree(dev->raw);
289 dev->raw = NULL;
290 return rc;
David Härdeman667c9eb2010-06-13 17:29:31 -0300291}
292
David Härdemand8b4b582010-10-29 16:08:23 -0300293void ir_raw_event_unregister(struct rc_dev *dev)
David Härdeman667c9eb2010-06-13 17:29:31 -0300294{
David Härdemanc2163692010-06-13 17:29:36 -0300295 struct ir_raw_handler *handler;
David Härdeman667c9eb2010-06-13 17:29:31 -0300296
David Härdemand8b4b582010-10-29 16:08:23 -0300297 if (!dev || !dev->raw)
David Härdeman667c9eb2010-06-13 17:29:31 -0300298 return;
299
David Härdemand8b4b582010-10-29 16:08:23 -0300300 kthread_stop(dev->raw->thread);
David Härdemanc2163692010-06-13 17:29:36 -0300301
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300302 mutex_lock(&ir_raw_handler_lock);
David Härdemand8b4b582010-10-29 16:08:23 -0300303 list_del(&dev->raw->list);
David Härdemanc2163692010-06-13 17:29:36 -0300304 list_for_each_entry(handler, &ir_raw_handler_list, list)
305 if (handler->raw_unregister)
David Härdemand8b4b582010-10-29 16:08:23 -0300306 handler->raw_unregister(dev);
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300307 mutex_unlock(&ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -0300308
David Härdemand8b4b582010-10-29 16:08:23 -0300309 kfifo_free(&dev->raw->kfifo);
310 kfree(dev->raw);
311 dev->raw = NULL;
David Härdeman667c9eb2010-06-13 17:29:31 -0300312}
313
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300314/*
315 * Extension interface - used to register the IR decoders
316 */
317
318int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler)
319{
David Härdemanc2163692010-06-13 17:29:36 -0300320 struct ir_raw_event_ctrl *raw;
321
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300322 mutex_lock(&ir_raw_handler_lock);
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300323 list_add_tail(&ir_raw_handler->list, &ir_raw_handler_list);
David Härdemanc2163692010-06-13 17:29:36 -0300324 if (ir_raw_handler->raw_register)
325 list_for_each_entry(raw, &ir_raw_client_list, list)
David Härdemand8b4b582010-10-29 16:08:23 -0300326 ir_raw_handler->raw_register(raw->dev);
David Härdeman667c9eb2010-06-13 17:29:31 -0300327 available_protocols |= ir_raw_handler->protocols;
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300328 mutex_unlock(&ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -0300329
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300330 return 0;
331}
332EXPORT_SYMBOL(ir_raw_handler_register);
333
334void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler)
335{
David Härdemanc2163692010-06-13 17:29:36 -0300336 struct ir_raw_event_ctrl *raw;
337
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300338 mutex_lock(&ir_raw_handler_lock);
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300339 list_del(&ir_raw_handler->list);
David Härdemanc2163692010-06-13 17:29:36 -0300340 if (ir_raw_handler->raw_unregister)
341 list_for_each_entry(raw, &ir_raw_client_list, list)
David Härdemand8b4b582010-10-29 16:08:23 -0300342 ir_raw_handler->raw_unregister(raw->dev);
David Härdeman667c9eb2010-06-13 17:29:31 -0300343 available_protocols &= ~ir_raw_handler->protocols;
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300344 mutex_unlock(&ir_raw_handler_lock);
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300345}
346EXPORT_SYMBOL(ir_raw_handler_unregister);
347
Mauro Carvalho Chehab5fa29892010-04-08 19:04:06 -0300348#ifdef MODULE
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300349static void init_decoders(struct work_struct *work)
350{
351 /* Load the decoder modules */
352
353 load_nec_decode();
Mauro Carvalho Chehabdb1423a2010-04-04 10:27:20 -0300354 load_rc5_decode();
David Härdeman784a4932010-04-08 20:04:40 -0300355 load_rc6_decode();
David Härdemanbf670f62010-04-15 18:46:05 -0300356 load_jvc_decode();
David Härdeman3fe29c82010-04-15 18:46:10 -0300357 load_sony_decode();
Mauro Carvalho Chehabb32e7242011-11-23 12:04:08 -0300358 load_sanyo_decode();
Jarod Wilsonf5f2cc62011-07-13 18:09:48 -0300359 load_mce_kbd_decode();
Jarod Wilsonca414692010-07-03 01:07:53 -0300360 load_lirc_codec();
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300361
362 /* If needed, we may later add some init code. In this case,
Mauro Carvalho Chehab6bda9642010-11-17 13:28:38 -0300363 it is needed to change the CONFIG_MODULE test at rc-core.h
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300364 */
365}
Mauro Carvalho Chehab5fa29892010-04-08 19:04:06 -0300366#endif
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300367
368void ir_raw_init(void)
369{
Mauro Carvalho Chehab93c312f2010-03-25 21:13:43 -0300370#ifdef MODULE
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300371 INIT_WORK(&wq_load, init_decoders);
372 schedule_work(&wq_load);
Mauro Carvalho Chehab93c312f2010-03-25 21:13:43 -0300373#endif
374}