blob: ab9b1e4071c037b8ff81a66c473fbc83d05bb351 [file] [log] [blame]
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -03001/* ir-raw-event.c - handle IR Pulse/Space event
2 *
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
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030015#include <linux/kthread.h>
Maxim Levitsky45a568f2010-07-31 11:59:16 -030016#include <linux/mutex.h>
David Härdeman724e2492010-04-08 13:10:00 -030017#include <linux/sched.h>
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030018#include <linux/freezer.h>
Mauro Carvalho Chehabf62de672010-11-09 23:09:57 -030019#include "rc-core-priv.h"
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -030020
David Härdeman724e2492010-04-08 13:10:00 -030021/* Define the max number of pulse/space transitions to buffer */
22#define MAX_IR_EVENT_SIZE 512
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -030023
David Härdemanc2163692010-06-13 17:29:36 -030024/* Used to keep track of IR raw clients, protected by ir_raw_handler_lock */
25static LIST_HEAD(ir_raw_client_list);
26
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -030027/* Used to handle IR raw handler extensions */
Maxim Levitsky45a568f2010-07-31 11:59:16 -030028static DEFINE_MUTEX(ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -030029static LIST_HEAD(ir_raw_handler_list);
30static u64 available_protocols;
Mauro Carvalho Chehab93c312f2010-03-25 21:13:43 -030031
Mauro Carvalho Chehab5fa29892010-04-08 19:04:06 -030032#ifdef MODULE
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -030033/* Used to load the decoders */
34static struct work_struct wq_load;
Mauro Carvalho Chehab5fa29892010-04-08 19:04:06 -030035#endif
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -030036
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030037static int ir_raw_event_thread(void *data)
David Härdeman724e2492010-04-08 13:10:00 -030038{
David Härdemane40b1122010-04-15 18:46:00 -030039 struct ir_raw_event ev;
David Härdemanc2163692010-06-13 17:29:36 -030040 struct ir_raw_handler *handler;
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030041 struct ir_raw_event_ctrl *raw = (struct ir_raw_event_ctrl *)data;
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030042 int retval;
David Härdeman724e2492010-04-08 13:10:00 -030043
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030044 while (!kthread_should_stop()) {
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030045
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030046 spin_lock_irq(&raw->lock);
47 retval = kfifo_out(&raw->kfifo, &ev, sizeof(ev));
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030048
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030049 if (!retval) {
50 set_current_state(TASK_INTERRUPTIBLE);
51
52 if (kthread_should_stop())
53 set_current_state(TASK_RUNNING);
54
55 spin_unlock_irq(&raw->lock);
56 schedule();
57 continue;
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030058 }
59
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030060 spin_unlock_irq(&raw->lock);
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -030061
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -030062
63 BUG_ON(retval != sizeof(ev));
64
65 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 */
David Härdemane40b1122010-04-15 18:46:00 -0300115 struct ir_raw_event ev;
David Härdeman724e2492010-04-08 13:10:00 -0300116 int rc = 0;
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300117
David Härdemand8b4b582010-10-29 16:08:23 -0300118 if (!dev->raw)
David Härdeman724e2492010-04-08 13:10:00 -0300119 return -EINVAL;
120
121 now = ktime_get();
David Härdemand8b4b582010-10-29 16:08:23 -0300122 delta = ktime_to_ns(ktime_sub(now, dev->raw->last_event));
David Härdeman724e2492010-04-08 13:10:00 -0300123
124 /* Check for a long duration since last event or if we're
125 * being called for the first time, note that delta can't
126 * possibly be negative.
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300127 */
David Härdemane40b1122010-04-15 18:46:00 -0300128 ev.duration = 0;
David Härdemand8b4b582010-10-29 16:08:23 -0300129 if (delta > IR_MAX_DURATION || !dev->raw->last_type)
David Härdeman724e2492010-04-08 13:10:00 -0300130 type |= IR_START_EVENT;
David Härdemane40b1122010-04-15 18:46:00 -0300131 else
132 ev.duration = delta;
David Härdeman724e2492010-04-08 13:10:00 -0300133
134 if (type & IR_START_EVENT)
David Härdemand8b4b582010-10-29 16:08:23 -0300135 ir_raw_event_reset(dev);
136 else if (dev->raw->last_type & IR_SPACE) {
David Härdemane40b1122010-04-15 18:46:00 -0300137 ev.pulse = false;
David Härdemand8b4b582010-10-29 16:08:23 -0300138 rc = ir_raw_event_store(dev, &ev);
139 } else if (dev->raw->last_type & IR_PULSE) {
David Härdemane40b1122010-04-15 18:46:00 -0300140 ev.pulse = true;
David Härdemand8b4b582010-10-29 16:08:23 -0300141 rc = ir_raw_event_store(dev, &ev);
David Härdemane40b1122010-04-15 18:46:00 -0300142 } else
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300143 return 0;
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300144
David Härdemand8b4b582010-10-29 16:08:23 -0300145 dev->raw->last_event = now;
146 dev->raw->last_type = type;
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300147 return rc;
148}
David Härdeman724e2492010-04-08 13:10:00 -0300149EXPORT_SYMBOL_GPL(ir_raw_event_store_edge);
150
151/**
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300152 * ir_raw_event_store_with_filter() - pass next pulse/space to decoders with some processing
David Härdemand8b4b582010-10-29 16:08:23 -0300153 * @dev: the struct rc_dev device descriptor
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300154 * @type: the type of the event that has occurred
155 *
156 * This routine (which may be called from an interrupt context) works
157 * in similiar manner to ir_raw_event_store_edge.
158 * This routine is intended for devices with limited internal buffer
159 * It automerges samples of same type, and handles timeouts
160 */
David Härdemand8b4b582010-10-29 16:08:23 -0300161int ir_raw_event_store_with_filter(struct rc_dev *dev, struct ir_raw_event *ev)
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300162{
David Härdemand8b4b582010-10-29 16:08:23 -0300163 if (!dev->raw)
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300164 return -EINVAL;
165
166 /* Ignore spaces in idle mode */
David Härdemand8b4b582010-10-29 16:08:23 -0300167 if (dev->idle && !ev->pulse)
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300168 return 0;
David Härdemand8b4b582010-10-29 16:08:23 -0300169 else if (dev->idle)
170 ir_raw_event_set_idle(dev, false);
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300171
David Härdemand8b4b582010-10-29 16:08:23 -0300172 if (!dev->raw->this_ev.duration)
173 dev->raw->this_ev = *ev;
174 else if (ev->pulse == dev->raw->this_ev.pulse)
175 dev->raw->this_ev.duration += ev->duration;
176 else {
177 ir_raw_event_store(dev, &dev->raw->this_ev);
178 dev->raw->this_ev = *ev;
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300179 }
180
181 /* Enter idle mode if nessesary */
David Härdemand8b4b582010-10-29 16:08:23 -0300182 if (!ev->pulse && dev->timeout &&
183 dev->raw->this_ev.duration >= dev->timeout)
184 ir_raw_event_set_idle(dev, true);
185
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300186 return 0;
187}
188EXPORT_SYMBOL_GPL(ir_raw_event_store_with_filter);
189
Maxim Levitsky46519182010-10-16 19:56:28 -0300190/**
David Härdemand8b4b582010-10-29 16:08:23 -0300191 * ir_raw_event_set_idle() - provide hint to rc-core when the device is idle or not
192 * @dev: the struct rc_dev device descriptor
193 * @idle: whether the device is idle or not
Maxim Levitsky46519182010-10-16 19:56:28 -0300194 */
David Härdemand8b4b582010-10-29 16:08:23 -0300195void ir_raw_event_set_idle(struct rc_dev *dev, bool idle)
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300196{
David Härdemand8b4b582010-10-29 16:08:23 -0300197 if (!dev->raw)
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300198 return;
199
Maxim Levitsky46519182010-10-16 19:56:28 -0300200 IR_dprintk(2, "%s idle mode\n", idle ? "enter" : "leave");
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300201
202 if (idle) {
David Härdemand8b4b582010-10-29 16:08:23 -0300203 dev->raw->this_ev.timeout = true;
204 ir_raw_event_store(dev, &dev->raw->this_ev);
205 init_ir_raw_event(&dev->raw->this_ev);
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300206 }
Maxim Levitsky46519182010-10-16 19:56:28 -0300207
David Härdemand8b4b582010-10-29 16:08:23 -0300208 if (dev->s_idle)
209 dev->s_idle(dev, idle);
210
211 dev->idle = idle;
Maxim Levitsky4a702eb2010-07-31 11:59:22 -0300212}
213EXPORT_SYMBOL_GPL(ir_raw_event_set_idle);
214
215/**
David Härdeman724e2492010-04-08 13:10:00 -0300216 * ir_raw_event_handle() - schedules the decoding of stored ir data
David Härdemand8b4b582010-10-29 16:08:23 -0300217 * @dev: the struct rc_dev device descriptor
David Härdeman724e2492010-04-08 13:10:00 -0300218 *
David Härdemand8b4b582010-10-29 16:08:23 -0300219 * This routine will tell rc-core to start decoding stored ir data.
David Härdeman724e2492010-04-08 13:10:00 -0300220 */
David Härdemand8b4b582010-10-29 16:08:23 -0300221void ir_raw_event_handle(struct rc_dev *dev)
David Härdeman724e2492010-04-08 13:10:00 -0300222{
Maxim Levitskyc6ef1e72010-09-06 18:26:06 -0300223 unsigned long flags;
David Härdeman724e2492010-04-08 13:10:00 -0300224
David Härdemand8b4b582010-10-29 16:08:23 -0300225 if (!dev->raw)
David Härdeman724e2492010-04-08 13:10:00 -0300226 return;
227
David Härdemand8b4b582010-10-29 16:08:23 -0300228 spin_lock_irqsave(&dev->raw->lock, flags);
229 wake_up_process(dev->raw->thread);
230 spin_unlock_irqrestore(&dev->raw->lock, flags);
David Härdeman724e2492010-04-08 13:10:00 -0300231}
Mauro Carvalho Chehaba3572c32010-03-20 20:59:44 -0300232EXPORT_SYMBOL_GPL(ir_raw_event_handle);
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300233
David Härdeman667c9eb2010-06-13 17:29:31 -0300234/* used internally by the sysfs interface */
235u64
236ir_raw_get_allowed_protocols()
237{
238 u64 protocols;
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300239 mutex_lock(&ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -0300240 protocols = available_protocols;
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300241 mutex_unlock(&ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -0300242 return protocols;
243}
244
245/*
246 * Used to (un)register raw event clients
247 */
David Härdemand8b4b582010-10-29 16:08:23 -0300248int ir_raw_event_register(struct rc_dev *dev)
David Härdeman667c9eb2010-06-13 17:29:31 -0300249{
David Härdeman667c9eb2010-06-13 17:29:31 -0300250 int rc;
David Härdemanc2163692010-06-13 17:29:36 -0300251 struct ir_raw_handler *handler;
David Härdeman667c9eb2010-06-13 17:29:31 -0300252
David Härdemand8b4b582010-10-29 16:08:23 -0300253 if (!dev)
254 return -EINVAL;
255
256 dev->raw = kzalloc(sizeof(*dev->raw), GFP_KERNEL);
257 if (!dev->raw)
David Härdeman667c9eb2010-06-13 17:29:31 -0300258 return -ENOMEM;
259
David Härdemand8b4b582010-10-29 16:08:23 -0300260 dev->raw->dev = dev;
261 dev->raw->enabled_protocols = ~0;
262 rc = kfifo_alloc(&dev->raw->kfifo,
263 sizeof(struct ir_raw_event) * MAX_IR_EVENT_SIZE,
David Härdeman667c9eb2010-06-13 17:29:31 -0300264 GFP_KERNEL);
David Härdemand8b4b582010-10-29 16:08:23 -0300265 if (rc < 0)
266 goto out;
David Härdeman667c9eb2010-06-13 17:29:31 -0300267
David Härdemand8b4b582010-10-29 16:08:23 -0300268 spin_lock_init(&dev->raw->lock);
269 dev->raw->thread = kthread_run(ir_raw_event_thread, dev->raw,
270 "rc%ld", dev->devno);
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -0300271
David Härdemand8b4b582010-10-29 16:08:23 -0300272 if (IS_ERR(dev->raw->thread)) {
273 rc = PTR_ERR(dev->raw->thread);
274 goto out;
Maxim Levitsky0d2cb1d2010-07-31 11:59:17 -0300275 }
276
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300277 mutex_lock(&ir_raw_handler_lock);
David Härdemand8b4b582010-10-29 16:08:23 -0300278 list_add_tail(&dev->raw->list, &ir_raw_client_list);
David Härdemanc2163692010-06-13 17:29:36 -0300279 list_for_each_entry(handler, &ir_raw_handler_list, list)
280 if (handler->raw_register)
David Härdemand8b4b582010-10-29 16:08:23 -0300281 handler->raw_register(dev);
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300282 mutex_unlock(&ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -0300283
David Härdemanc2163692010-06-13 17:29:36 -0300284 return 0;
David Härdemand8b4b582010-10-29 16:08:23 -0300285
286out:
287 kfree(dev->raw);
288 dev->raw = NULL;
289 return rc;
David Härdeman667c9eb2010-06-13 17:29:31 -0300290}
291
David Härdemand8b4b582010-10-29 16:08:23 -0300292void ir_raw_event_unregister(struct rc_dev *dev)
David Härdeman667c9eb2010-06-13 17:29:31 -0300293{
David Härdemanc2163692010-06-13 17:29:36 -0300294 struct ir_raw_handler *handler;
David Härdeman667c9eb2010-06-13 17:29:31 -0300295
David Härdemand8b4b582010-10-29 16:08:23 -0300296 if (!dev || !dev->raw)
David Härdeman667c9eb2010-06-13 17:29:31 -0300297 return;
298
David Härdemand8b4b582010-10-29 16:08:23 -0300299 kthread_stop(dev->raw->thread);
David Härdemanc2163692010-06-13 17:29:36 -0300300
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300301 mutex_lock(&ir_raw_handler_lock);
David Härdemand8b4b582010-10-29 16:08:23 -0300302 list_del(&dev->raw->list);
David Härdemanc2163692010-06-13 17:29:36 -0300303 list_for_each_entry(handler, &ir_raw_handler_list, list)
304 if (handler->raw_unregister)
David Härdemand8b4b582010-10-29 16:08:23 -0300305 handler->raw_unregister(dev);
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300306 mutex_unlock(&ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -0300307
David Härdemand8b4b582010-10-29 16:08:23 -0300308 kfifo_free(&dev->raw->kfifo);
309 kfree(dev->raw);
310 dev->raw = NULL;
David Härdeman667c9eb2010-06-13 17:29:31 -0300311}
312
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300313/*
314 * Extension interface - used to register the IR decoders
315 */
316
317int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler)
318{
David Härdemanc2163692010-06-13 17:29:36 -0300319 struct ir_raw_event_ctrl *raw;
320
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300321 mutex_lock(&ir_raw_handler_lock);
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300322 list_add_tail(&ir_raw_handler->list, &ir_raw_handler_list);
David Härdemanc2163692010-06-13 17:29:36 -0300323 if (ir_raw_handler->raw_register)
324 list_for_each_entry(raw, &ir_raw_client_list, list)
David Härdemand8b4b582010-10-29 16:08:23 -0300325 ir_raw_handler->raw_register(raw->dev);
David Härdeman667c9eb2010-06-13 17:29:31 -0300326 available_protocols |= ir_raw_handler->protocols;
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300327 mutex_unlock(&ir_raw_handler_lock);
David Härdeman667c9eb2010-06-13 17:29:31 -0300328
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300329 return 0;
330}
331EXPORT_SYMBOL(ir_raw_handler_register);
332
333void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler)
334{
David Härdemanc2163692010-06-13 17:29:36 -0300335 struct ir_raw_event_ctrl *raw;
336
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300337 mutex_lock(&ir_raw_handler_lock);
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300338 list_del(&ir_raw_handler->list);
David Härdemanc2163692010-06-13 17:29:36 -0300339 if (ir_raw_handler->raw_unregister)
340 list_for_each_entry(raw, &ir_raw_client_list, list)
David Härdemand8b4b582010-10-29 16:08:23 -0300341 ir_raw_handler->raw_unregister(raw->dev);
David Härdeman667c9eb2010-06-13 17:29:31 -0300342 available_protocols &= ~ir_raw_handler->protocols;
Maxim Levitsky45a568f2010-07-31 11:59:16 -0300343 mutex_unlock(&ir_raw_handler_lock);
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300344}
345EXPORT_SYMBOL(ir_raw_handler_unregister);
346
Mauro Carvalho Chehab5fa29892010-04-08 19:04:06 -0300347#ifdef MODULE
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300348static void init_decoders(struct work_struct *work)
349{
350 /* Load the decoder modules */
351
352 load_nec_decode();
Mauro Carvalho Chehabdb1423a2010-04-04 10:27:20 -0300353 load_rc5_decode();
David Härdeman784a4932010-04-08 20:04:40 -0300354 load_rc6_decode();
David Härdemanbf670f62010-04-15 18:46:05 -0300355 load_jvc_decode();
David Härdeman3fe29c82010-04-15 18:46:10 -0300356 load_sony_decode();
Jarod Wilsonca414692010-07-03 01:07:53 -0300357 load_lirc_codec();
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300358
359 /* If needed, we may later add some init code. In this case,
360 it is needed to change the CONFIG_MODULE test at ir-core.h
361 */
362}
Mauro Carvalho Chehab5fa29892010-04-08 19:04:06 -0300363#endif
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300364
365void ir_raw_init(void)
366{
Mauro Carvalho Chehab93c312f2010-03-25 21:13:43 -0300367#ifdef MODULE
Mauro Carvalho Chehab995187b2010-03-24 20:47:53 -0300368 INIT_WORK(&wq_load, init_decoders);
369 schedule_work(&wq_load);
Mauro Carvalho Chehab93c312f2010-03-25 21:13:43 -0300370#endif
371}