[media] rc-core: rename ir-raw.c
authorDavid Härdeman <david@hardeman.nu>
Thu, 3 Apr 2014 23:34:28 +0000 (20:34 -0300)
committerMauro Carvalho Chehab <m.chehab@samsung.com>
Fri, 25 Jul 2014 23:01:25 +0000 (20:01 -0300)
Better to be coherent and prefix this file with rc-, in order to
help to identify to what subsystem it belongs.

This is in preparaton for a latter patch that will transform the
raw handling into a separate module.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
drivers/media/rc/Makefile
drivers/media/rc/ir-raw.c [deleted file]
drivers/media/rc/rc-ir-raw.c [new file with mode: 0644]

index d07576f417dcf547a79d834d226d41ba06e30b02..096eb0692a04d46d5d1a2ac509518427cfc9bb1b 100644 (file)
@@ -1,4 +1,4 @@
-rc-core-objs   := rc-main.o ir-raw.o
+rc-core-objs   := rc-main.o rc-ir-raw.o
 
 obj-y += keymaps/
 
diff --git a/drivers/media/rc/ir-raw.c b/drivers/media/rc/ir-raw.c
deleted file mode 100644 (file)
index c72f57c..0000000
+++ /dev/null
@@ -1,369 +0,0 @@
-/* ir-raw.c - handle IR pulse/space events
- *
- * Copyright (C) 2010 by Mauro Carvalho Chehab
- *
- * This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- */
-
-#include <linux/export.h>
-#include <linux/kthread.h>
-#include <linux/mutex.h>
-#include <linux/kmod.h>
-#include <linux/sched.h>
-#include <linux/freezer.h>
-#include "rc-core-priv.h"
-
-/* Define the max number of pulse/space transitions to buffer */
-#define MAX_IR_EVENT_SIZE      512
-
-/* Used to keep track of IR raw clients, protected by ir_raw_handler_lock */
-static LIST_HEAD(ir_raw_client_list);
-
-/* Used to handle IR raw handler extensions */
-static DEFINE_MUTEX(ir_raw_handler_lock);
-static LIST_HEAD(ir_raw_handler_list);
-static u64 available_protocols;
-
-static int ir_raw_event_thread(void *data)
-{
-       struct ir_raw_event ev;
-       struct ir_raw_handler *handler;
-       struct ir_raw_event_ctrl *raw = (struct ir_raw_event_ctrl *)data;
-       int retval;
-
-       while (!kthread_should_stop()) {
-
-               spin_lock_irq(&raw->lock);
-               retval = kfifo_len(&raw->kfifo);
-
-               if (retval < sizeof(ev)) {
-                       set_current_state(TASK_INTERRUPTIBLE);
-
-                       if (kthread_should_stop())
-                               set_current_state(TASK_RUNNING);
-
-                       spin_unlock_irq(&raw->lock);
-                       schedule();
-                       continue;
-               }
-
-               retval = kfifo_out(&raw->kfifo, &ev, sizeof(ev));
-               spin_unlock_irq(&raw->lock);
-
-               mutex_lock(&ir_raw_handler_lock);
-               list_for_each_entry(handler, &ir_raw_handler_list, list)
-                       handler->decode(raw->dev, ev);
-               raw->prev_ev = ev;
-               mutex_unlock(&ir_raw_handler_lock);
-       }
-
-       return 0;
-}
-
-/**
- * ir_raw_event_store() - pass a pulse/space duration to the raw ir decoders
- * @dev:       the struct rc_dev device descriptor
- * @ev:                the struct ir_raw_event descriptor of the pulse/space
- *
- * This routine (which may be called from an interrupt context) stores a
- * pulse/space duration for the raw ir decoding state machines. Pulses are
- * signalled as positive values and spaces as negative values. A zero value
- * will reset the decoding state machines.
- */
-int ir_raw_event_store(struct rc_dev *dev, struct ir_raw_event *ev)
-{
-       if (!dev->raw)
-               return -EINVAL;
-
-       IR_dprintk(2, "sample: (%05dus %s)\n",
-                  TO_US(ev->duration), TO_STR(ev->pulse));
-
-       if (kfifo_in(&dev->raw->kfifo, ev, sizeof(*ev)) != sizeof(*ev))
-               return -ENOMEM;
-
-       return 0;
-}
-EXPORT_SYMBOL_GPL(ir_raw_event_store);
-
-/**
- * ir_raw_event_store_edge() - notify raw ir decoders of the start of a pulse/space
- * @dev:       the struct rc_dev device descriptor
- * @type:      the type of the event that has occurred
- *
- * This routine (which may be called from an interrupt context) is used to
- * store the beginning of an ir pulse or space (or the start/end of ir
- * reception) for the raw ir decoding state machines. This is used by
- * hardware which does not provide durations directly but only interrupts
- * (or similar events) on state change.
- */
-int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type)
-{
-       ktime_t                 now;
-       s64                     delta; /* ns */
-       DEFINE_IR_RAW_EVENT(ev);
-       int                     rc = 0;
-       int                     delay;
-
-       if (!dev->raw)
-               return -EINVAL;
-
-       now = ktime_get();
-       delta = ktime_to_ns(ktime_sub(now, dev->raw->last_event));
-       delay = MS_TO_NS(dev->input_dev->rep[REP_DELAY]);
-
-       /* Check for a long duration since last event or if we're
-        * being called for the first time, note that delta can't
-        * possibly be negative.
-        */
-       if (delta > delay || !dev->raw->last_type)
-               type |= IR_START_EVENT;
-       else
-               ev.duration = delta;
-
-       if (type & IR_START_EVENT)
-               ir_raw_event_reset(dev);
-       else if (dev->raw->last_type & IR_SPACE) {
-               ev.pulse = false;
-               rc = ir_raw_event_store(dev, &ev);
-       } else if (dev->raw->last_type & IR_PULSE) {
-               ev.pulse = true;
-               rc = ir_raw_event_store(dev, &ev);
-       } else
-               return 0;
-
-       dev->raw->last_event = now;
-       dev->raw->last_type = type;
-       return rc;
-}
-EXPORT_SYMBOL_GPL(ir_raw_event_store_edge);
-
-/**
- * ir_raw_event_store_with_filter() - pass next pulse/space to decoders with some processing
- * @dev:       the struct rc_dev device descriptor
- * @type:      the type of the event that has occurred
- *
- * This routine (which may be called from an interrupt context) works
- * in similar manner to ir_raw_event_store_edge.
- * This routine is intended for devices with limited internal buffer
- * It automerges samples of same type, and handles timeouts. Returns non-zero
- * if the event was added, and zero if the event was ignored due to idle
- * processing.
- */
-int ir_raw_event_store_with_filter(struct rc_dev *dev, struct ir_raw_event *ev)
-{
-       if (!dev->raw)
-               return -EINVAL;
-
-       /* Ignore spaces in idle mode */
-       if (dev->idle && !ev->pulse)
-               return 0;
-       else if (dev->idle)
-               ir_raw_event_set_idle(dev, false);
-
-       if (!dev->raw->this_ev.duration)
-               dev->raw->this_ev = *ev;
-       else if (ev->pulse == dev->raw->this_ev.pulse)
-               dev->raw->this_ev.duration += ev->duration;
-       else {
-               ir_raw_event_store(dev, &dev->raw->this_ev);
-               dev->raw->this_ev = *ev;
-       }
-
-       /* Enter idle mode if nessesary */
-       if (!ev->pulse && dev->timeout &&
-           dev->raw->this_ev.duration >= dev->timeout)
-               ir_raw_event_set_idle(dev, true);
-
-       return 1;
-}
-EXPORT_SYMBOL_GPL(ir_raw_event_store_with_filter);
-
-/**
- * ir_raw_event_set_idle() - provide hint to rc-core when the device is idle or not
- * @dev:       the struct rc_dev device descriptor
- * @idle:      whether the device is idle or not
- */
-void ir_raw_event_set_idle(struct rc_dev *dev, bool idle)
-{
-       if (!dev->raw)
-               return;
-
-       IR_dprintk(2, "%s idle mode\n", idle ? "enter" : "leave");
-
-       if (idle) {
-               dev->raw->this_ev.timeout = true;
-               ir_raw_event_store(dev, &dev->raw->this_ev);
-               init_ir_raw_event(&dev->raw->this_ev);
-       }
-
-       if (dev->s_idle)
-               dev->s_idle(dev, idle);
-
-       dev->idle = idle;
-}
-EXPORT_SYMBOL_GPL(ir_raw_event_set_idle);
-
-/**
- * ir_raw_event_handle() - schedules the decoding of stored ir data
- * @dev:       the struct rc_dev device descriptor
- *
- * This routine will tell rc-core to start decoding stored ir data.
- */
-void ir_raw_event_handle(struct rc_dev *dev)
-{
-       unsigned long flags;
-
-       if (!dev->raw)
-               return;
-
-       spin_lock_irqsave(&dev->raw->lock, flags);
-       wake_up_process(dev->raw->thread);
-       spin_unlock_irqrestore(&dev->raw->lock, flags);
-}
-EXPORT_SYMBOL_GPL(ir_raw_event_handle);
-
-/* used internally by the sysfs interface */
-u64
-ir_raw_get_allowed_protocols(void)
-{
-       u64 protocols;
-       mutex_lock(&ir_raw_handler_lock);
-       protocols = available_protocols;
-       mutex_unlock(&ir_raw_handler_lock);
-       return protocols;
-}
-
-static int change_protocol(struct rc_dev *dev, u64 *rc_type)
-{
-       /* the caller will update dev->enabled_protocols */
-       return 0;
-}
-
-/*
- * Used to (un)register raw event clients
- */
-int ir_raw_event_register(struct rc_dev *dev)
-{
-       int rc;
-       struct ir_raw_handler *handler;
-
-       if (!dev)
-               return -EINVAL;
-
-       dev->raw = kzalloc(sizeof(*dev->raw), GFP_KERNEL);
-       if (!dev->raw)
-               return -ENOMEM;
-
-       dev->raw->dev = dev;
-       dev->enabled_protocols = ~0;
-       dev->change_protocol = change_protocol;
-       rc = kfifo_alloc(&dev->raw->kfifo,
-                        sizeof(struct ir_raw_event) * MAX_IR_EVENT_SIZE,
-                        GFP_KERNEL);
-       if (rc < 0)
-               goto out;
-
-       spin_lock_init(&dev->raw->lock);
-       dev->raw->thread = kthread_run(ir_raw_event_thread, dev->raw,
-                                      "rc%ld", dev->devno);
-
-       if (IS_ERR(dev->raw->thread)) {
-               rc = PTR_ERR(dev->raw->thread);
-               goto out;
-       }
-
-       mutex_lock(&ir_raw_handler_lock);
-       list_add_tail(&dev->raw->list, &ir_raw_client_list);
-       list_for_each_entry(handler, &ir_raw_handler_list, list)
-               if (handler->raw_register)
-                       handler->raw_register(dev);
-       mutex_unlock(&ir_raw_handler_lock);
-
-       return 0;
-
-out:
-       kfree(dev->raw);
-       dev->raw = NULL;
-       return rc;
-}
-
-void ir_raw_event_unregister(struct rc_dev *dev)
-{
-       struct ir_raw_handler *handler;
-
-       if (!dev || !dev->raw)
-               return;
-
-       kthread_stop(dev->raw->thread);
-
-       mutex_lock(&ir_raw_handler_lock);
-       list_del(&dev->raw->list);
-       list_for_each_entry(handler, &ir_raw_handler_list, list)
-               if (handler->raw_unregister)
-                       handler->raw_unregister(dev);
-       mutex_unlock(&ir_raw_handler_lock);
-
-       kfifo_free(&dev->raw->kfifo);
-       kfree(dev->raw);
-       dev->raw = NULL;
-}
-
-/*
- * Extension interface - used to register the IR decoders
- */
-
-int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler)
-{
-       struct ir_raw_event_ctrl *raw;
-
-       mutex_lock(&ir_raw_handler_lock);
-       list_add_tail(&ir_raw_handler->list, &ir_raw_handler_list);
-       if (ir_raw_handler->raw_register)
-               list_for_each_entry(raw, &ir_raw_client_list, list)
-                       ir_raw_handler->raw_register(raw->dev);
-       available_protocols |= ir_raw_handler->protocols;
-       mutex_unlock(&ir_raw_handler_lock);
-
-       return 0;
-}
-EXPORT_SYMBOL(ir_raw_handler_register);
-
-void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler)
-{
-       struct ir_raw_event_ctrl *raw;
-
-       mutex_lock(&ir_raw_handler_lock);
-       list_del(&ir_raw_handler->list);
-       if (ir_raw_handler->raw_unregister)
-               list_for_each_entry(raw, &ir_raw_client_list, list)
-                       ir_raw_handler->raw_unregister(raw->dev);
-       available_protocols &= ~ir_raw_handler->protocols;
-       mutex_unlock(&ir_raw_handler_lock);
-}
-EXPORT_SYMBOL(ir_raw_handler_unregister);
-
-void ir_raw_init(void)
-{
-       /* Load the decoder modules */
-
-       load_nec_decode();
-       load_rc5_decode();
-       load_rc6_decode();
-       load_jvc_decode();
-       load_sony_decode();
-       load_sanyo_decode();
-       load_sharp_decode();
-       load_mce_kbd_decode();
-       load_lirc_codec();
-
-       /* If needed, we may later add some init code. In this case,
-          it is needed to change the CONFIG_MODULE test at rc-core.h
-        */
-}
diff --git a/drivers/media/rc/rc-ir-raw.c b/drivers/media/rc/rc-ir-raw.c
new file mode 100644 (file)
index 0000000..e772c4c
--- /dev/null
@@ -0,0 +1,369 @@
+/* rc-ir-raw.c - handle IR pulse/space events
+ *
+ * Copyright (C) 2010 by Mauro Carvalho Chehab
+ *
+ * This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ */
+
+#include <linux/export.h>
+#include <linux/kthread.h>
+#include <linux/mutex.h>
+#include <linux/kmod.h>
+#include <linux/sched.h>
+#include <linux/freezer.h>
+#include "rc-core-priv.h"
+
+/* Define the max number of pulse/space transitions to buffer */
+#define MAX_IR_EVENT_SIZE      512
+
+/* Used to keep track of IR raw clients, protected by ir_raw_handler_lock */
+static LIST_HEAD(ir_raw_client_list);
+
+/* Used to handle IR raw handler extensions */
+static DEFINE_MUTEX(ir_raw_handler_lock);
+static LIST_HEAD(ir_raw_handler_list);
+static u64 available_protocols;
+
+static int ir_raw_event_thread(void *data)
+{
+       struct ir_raw_event ev;
+       struct ir_raw_handler *handler;
+       struct ir_raw_event_ctrl *raw = (struct ir_raw_event_ctrl *)data;
+       int retval;
+
+       while (!kthread_should_stop()) {
+
+               spin_lock_irq(&raw->lock);
+               retval = kfifo_len(&raw->kfifo);
+
+               if (retval < sizeof(ev)) {
+                       set_current_state(TASK_INTERRUPTIBLE);
+
+                       if (kthread_should_stop())
+                               set_current_state(TASK_RUNNING);
+
+                       spin_unlock_irq(&raw->lock);
+                       schedule();
+                       continue;
+               }
+
+               retval = kfifo_out(&raw->kfifo, &ev, sizeof(ev));
+               spin_unlock_irq(&raw->lock);
+
+               mutex_lock(&ir_raw_handler_lock);
+               list_for_each_entry(handler, &ir_raw_handler_list, list)
+                       handler->decode(raw->dev, ev);
+               raw->prev_ev = ev;
+               mutex_unlock(&ir_raw_handler_lock);
+       }
+
+       return 0;
+}
+
+/**
+ * ir_raw_event_store() - pass a pulse/space duration to the raw ir decoders
+ * @dev:       the struct rc_dev device descriptor
+ * @ev:                the struct ir_raw_event descriptor of the pulse/space
+ *
+ * This routine (which may be called from an interrupt context) stores a
+ * pulse/space duration for the raw ir decoding state machines. Pulses are
+ * signalled as positive values and spaces as negative values. A zero value
+ * will reset the decoding state machines.
+ */
+int ir_raw_event_store(struct rc_dev *dev, struct ir_raw_event *ev)
+{
+       if (!dev->raw)
+               return -EINVAL;
+
+       IR_dprintk(2, "sample: (%05dus %s)\n",
+                  TO_US(ev->duration), TO_STR(ev->pulse));
+
+       if (kfifo_in(&dev->raw->kfifo, ev, sizeof(*ev)) != sizeof(*ev))
+               return -ENOMEM;
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(ir_raw_event_store);
+
+/**
+ * ir_raw_event_store_edge() - notify raw ir decoders of the start of a pulse/space
+ * @dev:       the struct rc_dev device descriptor
+ * @type:      the type of the event that has occurred
+ *
+ * This routine (which may be called from an interrupt context) is used to
+ * store the beginning of an ir pulse or space (or the start/end of ir
+ * reception) for the raw ir decoding state machines. This is used by
+ * hardware which does not provide durations directly but only interrupts
+ * (or similar events) on state change.
+ */
+int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type)
+{
+       ktime_t                 now;
+       s64                     delta; /* ns */
+       DEFINE_IR_RAW_EVENT(ev);
+       int                     rc = 0;
+       int                     delay;
+
+       if (!dev->raw)
+               return -EINVAL;
+
+       now = ktime_get();
+       delta = ktime_to_ns(ktime_sub(now, dev->raw->last_event));
+       delay = MS_TO_NS(dev->input_dev->rep[REP_DELAY]);
+
+       /* Check for a long duration since last event or if we're
+        * being called for the first time, note that delta can't
+        * possibly be negative.
+        */
+       if (delta > delay || !dev->raw->last_type)
+               type |= IR_START_EVENT;
+       else
+               ev.duration = delta;
+
+       if (type & IR_START_EVENT)
+               ir_raw_event_reset(dev);
+       else if (dev->raw->last_type & IR_SPACE) {
+               ev.pulse = false;
+               rc = ir_raw_event_store(dev, &ev);
+       } else if (dev->raw->last_type & IR_PULSE) {
+               ev.pulse = true;
+               rc = ir_raw_event_store(dev, &ev);
+       } else
+               return 0;
+
+       dev->raw->last_event = now;
+       dev->raw->last_type = type;
+       return rc;
+}
+EXPORT_SYMBOL_GPL(ir_raw_event_store_edge);
+
+/**
+ * ir_raw_event_store_with_filter() - pass next pulse/space to decoders with some processing
+ * @dev:       the struct rc_dev device descriptor
+ * @type:      the type of the event that has occurred
+ *
+ * This routine (which may be called from an interrupt context) works
+ * in similar manner to ir_raw_event_store_edge.
+ * This routine is intended for devices with limited internal buffer
+ * It automerges samples of same type, and handles timeouts. Returns non-zero
+ * if the event was added, and zero if the event was ignored due to idle
+ * processing.
+ */
+int ir_raw_event_store_with_filter(struct rc_dev *dev, struct ir_raw_event *ev)
+{
+       if (!dev->raw)
+               return -EINVAL;
+
+       /* Ignore spaces in idle mode */
+       if (dev->idle && !ev->pulse)
+               return 0;
+       else if (dev->idle)
+               ir_raw_event_set_idle(dev, false);
+
+       if (!dev->raw->this_ev.duration)
+               dev->raw->this_ev = *ev;
+       else if (ev->pulse == dev->raw->this_ev.pulse)
+               dev->raw->this_ev.duration += ev->duration;
+       else {
+               ir_raw_event_store(dev, &dev->raw->this_ev);
+               dev->raw->this_ev = *ev;
+       }
+
+       /* Enter idle mode if nessesary */
+       if (!ev->pulse && dev->timeout &&
+           dev->raw->this_ev.duration >= dev->timeout)
+               ir_raw_event_set_idle(dev, true);
+
+       return 1;
+}
+EXPORT_SYMBOL_GPL(ir_raw_event_store_with_filter);
+
+/**
+ * ir_raw_event_set_idle() - provide hint to rc-core when the device is idle or not
+ * @dev:       the struct rc_dev device descriptor
+ * @idle:      whether the device is idle or not
+ */
+void ir_raw_event_set_idle(struct rc_dev *dev, bool idle)
+{
+       if (!dev->raw)
+               return;
+
+       IR_dprintk(2, "%s idle mode\n", idle ? "enter" : "leave");
+
+       if (idle) {
+               dev->raw->this_ev.timeout = true;
+               ir_raw_event_store(dev, &dev->raw->this_ev);
+               init_ir_raw_event(&dev->raw->this_ev);
+       }
+
+       if (dev->s_idle)
+               dev->s_idle(dev, idle);
+
+       dev->idle = idle;
+}
+EXPORT_SYMBOL_GPL(ir_raw_event_set_idle);
+
+/**
+ * ir_raw_event_handle() - schedules the decoding of stored ir data
+ * @dev:       the struct rc_dev device descriptor
+ *
+ * This routine will tell rc-core to start decoding stored ir data.
+ */
+void ir_raw_event_handle(struct rc_dev *dev)
+{
+       unsigned long flags;
+
+       if (!dev->raw)
+               return;
+
+       spin_lock_irqsave(&dev->raw->lock, flags);
+       wake_up_process(dev->raw->thread);
+       spin_unlock_irqrestore(&dev->raw->lock, flags);
+}
+EXPORT_SYMBOL_GPL(ir_raw_event_handle);
+
+/* used internally by the sysfs interface */
+u64
+ir_raw_get_allowed_protocols(void)
+{
+       u64 protocols;
+       mutex_lock(&ir_raw_handler_lock);
+       protocols = available_protocols;
+       mutex_unlock(&ir_raw_handler_lock);
+       return protocols;
+}
+
+static int change_protocol(struct rc_dev *dev, u64 *rc_type)
+{
+       /* the caller will update dev->enabled_protocols */
+       return 0;
+}
+
+/*
+ * Used to (un)register raw event clients
+ */
+int ir_raw_event_register(struct rc_dev *dev)
+{
+       int rc;
+       struct ir_raw_handler *handler;
+
+       if (!dev)
+               return -EINVAL;
+
+       dev->raw = kzalloc(sizeof(*dev->raw), GFP_KERNEL);
+       if (!dev->raw)
+               return -ENOMEM;
+
+       dev->raw->dev = dev;
+       dev->enabled_protocols = ~0;
+       dev->change_protocol = change_protocol;
+       rc = kfifo_alloc(&dev->raw->kfifo,
+                        sizeof(struct ir_raw_event) * MAX_IR_EVENT_SIZE,
+                        GFP_KERNEL);
+       if (rc < 0)
+               goto out;
+
+       spin_lock_init(&dev->raw->lock);
+       dev->raw->thread = kthread_run(ir_raw_event_thread, dev->raw,
+                                      "rc%ld", dev->devno);
+
+       if (IS_ERR(dev->raw->thread)) {
+               rc = PTR_ERR(dev->raw->thread);
+               goto out;
+       }
+
+       mutex_lock(&ir_raw_handler_lock);
+       list_add_tail(&dev->raw->list, &ir_raw_client_list);
+       list_for_each_entry(handler, &ir_raw_handler_list, list)
+               if (handler->raw_register)
+                       handler->raw_register(dev);
+       mutex_unlock(&ir_raw_handler_lock);
+
+       return 0;
+
+out:
+       kfree(dev->raw);
+       dev->raw = NULL;
+       return rc;
+}
+
+void ir_raw_event_unregister(struct rc_dev *dev)
+{
+       struct ir_raw_handler *handler;
+
+       if (!dev || !dev->raw)
+               return;
+
+       kthread_stop(dev->raw->thread);
+
+       mutex_lock(&ir_raw_handler_lock);
+       list_del(&dev->raw->list);
+       list_for_each_entry(handler, &ir_raw_handler_list, list)
+               if (handler->raw_unregister)
+                       handler->raw_unregister(dev);
+       mutex_unlock(&ir_raw_handler_lock);
+
+       kfifo_free(&dev->raw->kfifo);
+       kfree(dev->raw);
+       dev->raw = NULL;
+}
+
+/*
+ * Extension interface - used to register the IR decoders
+ */
+
+int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler)
+{
+       struct ir_raw_event_ctrl *raw;
+
+       mutex_lock(&ir_raw_handler_lock);
+       list_add_tail(&ir_raw_handler->list, &ir_raw_handler_list);
+       if (ir_raw_handler->raw_register)
+               list_for_each_entry(raw, &ir_raw_client_list, list)
+                       ir_raw_handler->raw_register(raw->dev);
+       available_protocols |= ir_raw_handler->protocols;
+       mutex_unlock(&ir_raw_handler_lock);
+
+       return 0;
+}
+EXPORT_SYMBOL(ir_raw_handler_register);
+
+void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler)
+{
+       struct ir_raw_event_ctrl *raw;
+
+       mutex_lock(&ir_raw_handler_lock);
+       list_del(&ir_raw_handler->list);
+       if (ir_raw_handler->raw_unregister)
+               list_for_each_entry(raw, &ir_raw_client_list, list)
+                       ir_raw_handler->raw_unregister(raw->dev);
+       available_protocols &= ~ir_raw_handler->protocols;
+       mutex_unlock(&ir_raw_handler_lock);
+}
+EXPORT_SYMBOL(ir_raw_handler_unregister);
+
+void ir_raw_init(void)
+{
+       /* Load the decoder modules */
+
+       load_nec_decode();
+       load_rc5_decode();
+       load_rc6_decode();
+       load_jvc_decode();
+       load_sony_decode();
+       load_sanyo_decode();
+       load_sharp_decode();
+       load_mce_kbd_decode();
+       load_lirc_codec();
+
+       /* If needed, we may later add some init code. In this case,
+          it is needed to change the CONFIG_MODULE test at rc-core.h
+        */
+}