-/* ir-raw-event.c - handle IR Pulse/Space event
+/* ir-raw.c - handle IR pulse/space events
*
* Copyright (C) 2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
*
#include <linux/mutex.h>
#include <linux/sched.h>
#include <linux/freezer.h>
-#include "ir-core-priv.h"
+#include "rc-core-priv.h"
/* Define the max number of pulse/space transitions to buffer */
#define MAX_IR_EVENT_SIZE 512
mutex_lock(&ir_raw_handler_lock);
list_for_each_entry(handler, &ir_raw_handler_list, list)
- handler->decode(raw->input_dev, ev);
+ handler->decode(raw->dev, ev);
raw->prev_ev = ev;
mutex_unlock(&ir_raw_handler_lock);
}
/**
* ir_raw_event_store() - pass a pulse/space duration to the raw ir decoders
- * @input_dev: the struct input_dev device descriptor
+ * @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
* signalled as positive values and spaces as negative values. A zero value
* will reset the decoding state machines.
*/
-int ir_raw_event_store(struct input_dev *input_dev, struct ir_raw_event *ev)
+int ir_raw_event_store(struct rc_dev *dev, struct ir_raw_event *ev)
{
- struct ir_input_dev *ir = input_get_drvdata(input_dev);
-
- if (!ir->raw)
+ if (!dev->raw)
return -EINVAL;
IR_dprintk(2, "sample: (%05dus %s)\n",
- TO_US(ev->duration), TO_STR(ev->pulse));
+ TO_US(ev->duration), TO_STR(ev->pulse));
- if (kfifo_in(&ir->raw->kfifo, ev, sizeof(*ev)) != sizeof(*ev))
+ if (kfifo_in(&dev->raw->kfifo, ev, sizeof(*ev)) != sizeof(*ev))
return -ENOMEM;
return 0;
/**
* ir_raw_event_store_edge() - notify raw ir decoders of the start of a pulse/space
- * @input_dev: the struct input_dev device descriptor
+ * @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
* hardware which does not provide durations directly but only interrupts
* (or similar events) on state change.
*/
-int ir_raw_event_store_edge(struct input_dev *input_dev, enum raw_event_type type)
+int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type)
{
- struct ir_input_dev *ir = input_get_drvdata(input_dev);
ktime_t now;
s64 delta; /* ns */
- struct ir_raw_event ev;
+ DEFINE_IR_RAW_EVENT(ev);
int rc = 0;
- if (!ir->raw)
+ if (!dev->raw)
return -EINVAL;
now = ktime_get();
- delta = ktime_to_ns(ktime_sub(now, ir->raw->last_event));
+ delta = ktime_to_ns(ktime_sub(now, dev->raw->last_event));
/* 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.
*/
- ev.duration = 0;
- if (delta > IR_MAX_DURATION || !ir->raw->last_type)
+ if (delta > IR_MAX_DURATION || !dev->raw->last_type)
type |= IR_START_EVENT;
else
ev.duration = delta;
if (type & IR_START_EVENT)
- ir_raw_event_reset(input_dev);
- else if (ir->raw->last_type & IR_SPACE) {
+ ir_raw_event_reset(dev);
+ else if (dev->raw->last_type & IR_SPACE) {
ev.pulse = false;
- rc = ir_raw_event_store(input_dev, &ev);
- } else if (ir->raw->last_type & IR_PULSE) {
+ rc = ir_raw_event_store(dev, &ev);
+ } else if (dev->raw->last_type & IR_PULSE) {
ev.pulse = true;
- rc = ir_raw_event_store(input_dev, &ev);
+ rc = ir_raw_event_store(dev, &ev);
} else
return 0;
- ir->raw->last_event = now;
- ir->raw->last_type = type;
+ 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
- * @input_dev: the struct input_dev device descriptor
+ * @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
* This routine is intended for devices with limited internal buffer
* It automerges samples of same type, and handles timeouts
*/
-int ir_raw_event_store_with_filter(struct input_dev *input_dev,
- struct ir_raw_event *ev)
+int ir_raw_event_store_with_filter(struct rc_dev *dev, struct ir_raw_event *ev)
{
- struct ir_input_dev *ir = input_get_drvdata(input_dev);
- struct ir_raw_event_ctrl *raw = ir->raw;
-
- if (!raw || !ir->props)
+ if (!dev->raw)
return -EINVAL;
/* Ignore spaces in idle mode */
- if (ir->idle && !ev->pulse)
+ if (dev->idle && !ev->pulse)
return 0;
- else if (ir->idle)
- ir_raw_event_set_idle(input_dev, false);
-
- if (!raw->this_ev.duration) {
- raw->this_ev = *ev;
- } else if (ev->pulse == raw->this_ev.pulse) {
- raw->this_ev.duration += ev->duration;
- } else {
- ir_raw_event_store(input_dev, &raw->this_ev);
- raw->this_ev = *ev;
+ 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 && ir->props->timeout &&
- raw->this_ev.duration >= ir->props->timeout) {
- ir_raw_event_set_idle(input_dev, true);
- }
+ if (!ev->pulse && dev->timeout &&
+ dev->raw->this_ev.duration >= dev->timeout)
+ ir_raw_event_set_idle(dev, true);
+
return 0;
}
EXPORT_SYMBOL_GPL(ir_raw_event_store_with_filter);
/**
- * ir_raw_event_set_idle() - hint the ir core if device is receiving
- * IR data or not
- * @input_dev: the struct input_dev device descriptor
- * @idle: the hint value
+ * 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 input_dev *input_dev, bool idle)
+void ir_raw_event_set_idle(struct rc_dev *dev, bool idle)
{
- struct ir_input_dev *ir = input_get_drvdata(input_dev);
- struct ir_raw_event_ctrl *raw = ir->raw;
-
- if (!ir->props || !ir->raw)
+ if (!dev->raw)
return;
IR_dprintk(2, "%s idle mode\n", idle ? "enter" : "leave");
if (idle) {
- raw->this_ev.timeout = true;
- ir_raw_event_store(input_dev, &raw->this_ev);
- init_ir_raw_event(&raw->this_ev);
+ dev->raw->this_ev.timeout = true;
+ ir_raw_event_store(dev, &dev->raw->this_ev);
+ init_ir_raw_event(&dev->raw->this_ev);
}
- if (ir->props->s_idle)
- ir->props->s_idle(ir->props->priv, idle);
- ir->idle = idle;
+ 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
- * @input_dev: the struct input_dev device descriptor
+ * @dev: the struct rc_dev device descriptor
*
- * This routine will signal the workqueue to start decoding stored ir data.
+ * This routine will tell rc-core to start decoding stored ir data.
*/
-void ir_raw_event_handle(struct input_dev *input_dev)
+void ir_raw_event_handle(struct rc_dev *dev)
{
- struct ir_input_dev *ir = input_get_drvdata(input_dev);
unsigned long flags;
- if (!ir->raw)
+ if (!dev->raw)
return;
- spin_lock_irqsave(&ir->raw->lock, flags);
- wake_up_process(ir->raw->thread);
- spin_unlock_irqrestore(&ir->raw->lock, flags);
+ 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()
+ir_raw_get_allowed_protocols(void)
{
u64 protocols;
mutex_lock(&ir_raw_handler_lock);
/*
* Used to (un)register raw event clients
*/
-int ir_raw_event_register(struct input_dev *input_dev)
+int ir_raw_event_register(struct rc_dev *dev)
{
- struct ir_input_dev *ir = input_get_drvdata(input_dev);
int rc;
struct ir_raw_handler *handler;
- ir->raw = kzalloc(sizeof(*ir->raw), GFP_KERNEL);
- if (!ir->raw)
- return -ENOMEM;
+ if (!dev)
+ return -EINVAL;
- ir->raw->input_dev = input_dev;
+ dev->raw = kzalloc(sizeof(*dev->raw), GFP_KERNEL);
+ if (!dev->raw)
+ return -ENOMEM;
- ir->raw->enabled_protocols = ~0;
- rc = kfifo_alloc(&ir->raw->kfifo, sizeof(s64) * MAX_IR_EVENT_SIZE,
+ dev->raw->dev = dev;
+ dev->raw->enabled_protocols = ~0;
+ rc = kfifo_alloc(&dev->raw->kfifo,
+ sizeof(struct ir_raw_event) * MAX_IR_EVENT_SIZE,
GFP_KERNEL);
- if (rc < 0) {
- kfree(ir->raw);
- ir->raw = NULL;
- return rc;
- }
+ if (rc < 0)
+ goto out;
- spin_lock_init(&ir->raw->lock);
- ir->raw->thread = kthread_run(ir_raw_event_thread, ir->raw,
- "rc%u", (unsigned int)ir->devno);
+ spin_lock_init(&dev->raw->lock);
+ dev->raw->thread = kthread_run(ir_raw_event_thread, dev->raw,
+ "rc%ld", dev->devno);
- if (IS_ERR(ir->raw->thread)) {
- int ret = PTR_ERR(ir->raw->thread);
-
- kfree(ir->raw);
- ir->raw = NULL;
- return ret;
+ if (IS_ERR(dev->raw->thread)) {
+ rc = PTR_ERR(dev->raw->thread);
+ goto out;
}
mutex_lock(&ir_raw_handler_lock);
- list_add_tail(&ir->raw->list, &ir_raw_client_list);
+ 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(ir->raw->input_dev);
+ 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 input_dev *input_dev)
+void ir_raw_event_unregister(struct rc_dev *dev)
{
- struct ir_input_dev *ir = input_get_drvdata(input_dev);
struct ir_raw_handler *handler;
- if (!ir->raw)
+ if (!dev || !dev->raw)
return;
- kthread_stop(ir->raw->thread);
+ kthread_stop(dev->raw->thread);
mutex_lock(&ir_raw_handler_lock);
- list_del(&ir->raw->list);
+ list_del(&dev->raw->list);
list_for_each_entry(handler, &ir_raw_handler_list, list)
if (handler->raw_unregister)
- handler->raw_unregister(ir->raw->input_dev);
+ handler->raw_unregister(dev);
mutex_unlock(&ir_raw_handler_lock);
- kfifo_free(&ir->raw->kfifo);
- kfree(ir->raw);
- ir->raw = NULL;
+ kfifo_free(&dev->raw->kfifo);
+ kfree(dev->raw);
+ dev->raw = NULL;
}
/*
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->input_dev);
+ ir_raw_handler->raw_register(raw->dev);
available_protocols |= ir_raw_handler->protocols;
mutex_unlock(&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->input_dev);
+ ir_raw_handler->raw_unregister(raw->dev);
available_protocols &= ~ir_raw_handler->protocols;
mutex_unlock(&ir_raw_handler_lock);
}
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 ir-core.h
+ it is needed to change the CONFIG_MODULE test at rc-core.h
*/
}
#endif
projects / mv-sheeva.git / blobdiff