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yaml
---
r: 192945
b: refs/heads/master
c: 3f113e3
h: refs/heads/master
i:
  192943: 21f0e72
v: v3
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Mauro Carvalho Chehab committed May 19, 2010
1 parent 2913d17 commit da1bd9b
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Showing 9 changed files with 128 additions and 83 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 724e2495502a98aaa3f93c404472a991da8ff857
refs/heads/master: 3f113e36106f133752de47208816b28aa8e60f88
111 changes: 111 additions & 0 deletions trunk/drivers/media/IR/ir-core-priv.h
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@@ -0,0 +1,111 @@
/*
* Remote Controller core raw events header
*
* Copyright (C) 2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
*
* 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.
*/

#ifndef _IR_RAW_EVENT
#define _IR_RAW_EVENT

#include <linux/slab.h>
#include <media/ir-core.h>

struct ir_raw_handler {
struct list_head list;

int (*decode)(struct input_dev *input_dev, s64 duration);
int (*raw_register)(struct input_dev *input_dev);
int (*raw_unregister)(struct input_dev *input_dev);
};

struct ir_raw_event_ctrl {
struct work_struct rx_work; /* for the rx decoding workqueue */
struct kfifo kfifo; /* fifo for the pulse/space durations */
ktime_t last_event; /* when last event occurred */
enum raw_event_type last_type; /* last event type */
struct input_dev *input_dev; /* pointer to the parent input_dev */
};

/* macros for IR decoders */
#define PULSE(units) ((units))
#define SPACE(units) (-(units))
#define IS_RESET(duration) ((duration) == 0)
#define IS_PULSE(duration) ((duration) > 0)
#define IS_SPACE(duration) ((duration) < 0)
#define DURATION(duration) (abs((duration)))
#define IS_TRANSITION(x, y) ((x) * (y) < 0)
#define DECREASE_DURATION(duration, amount) \
do { \
if (IS_SPACE(duration)) \
duration += (amount); \
else if (IS_PULSE(duration)) \
duration -= (amount); \
} while (0)

#define TO_UNITS(duration, unit_len) \
((int)((duration) > 0 ? \
DIV_ROUND_CLOSEST(abs((duration)), (unit_len)) :\
-DIV_ROUND_CLOSEST(abs((duration)), (unit_len))))
#define TO_US(duration) ((int)TO_UNITS(duration, 1000))

/*
* Routines from ir-keytable.c to be used internally on ir-core and decoders
*/

u32 ir_g_keycode_from_table(struct input_dev *input_dev,
u32 scancode);

/*
* Routines from ir-sysfs.c - Meant to be called only internally inside
* ir-core
*/

int ir_register_class(struct input_dev *input_dev);
void ir_unregister_class(struct input_dev *input_dev);

/*
* Routines from ir-raw-event.c to be used internally and by decoders
*/
int ir_raw_event_register(struct input_dev *input_dev);
void ir_raw_event_unregister(struct input_dev *input_dev);
static inline void ir_raw_event_reset(struct input_dev *input_dev)
{
ir_raw_event_store(input_dev, 0);
ir_raw_event_handle(input_dev);
}
int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
void ir_raw_init(void);


/*
* Decoder initialization code
*
* Those load logic are called during ir-core init, and automatically
* loads the compiled decoders for their usage with IR raw events
*/

/* from ir-nec-decoder.c */
#ifdef CONFIG_IR_NEC_DECODER_MODULE
#define load_nec_decode() request_module("ir-nec-decoder")
#else
#define load_nec_decode() 0
#endif

/* from ir-rc5-decoder.c */
#ifdef CONFIG_IR_RC5_DECODER_MODULE
#define load_rc5_decode() request_module("ir-rc5-decoder")
#else
#define load_rc5_decode() 0
#endif

#endif /* _IR_RAW_EVENT */
1 change: 1 addition & 0 deletions trunk/drivers/media/IR/ir-functions.c
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Expand Up @@ -24,6 +24,7 @@
#include <linux/string.h>
#include <linux/jiffies.h>
#include <media/ir-common.h>
#include "ir-core-priv.h"

/* -------------------------------------------------------------------------- */

Expand Down
2 changes: 1 addition & 1 deletion trunk/drivers/media/IR/ir-keytable.c
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@

#include <linux/input.h>
#include <linux/slab.h>
#include <media/ir-common.h>
#include "ir-core-priv.h"

/* Sizes are in bytes, 256 bytes allows for 32 entries on x64 */
#define IR_TAB_MIN_SIZE 256
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2 changes: 1 addition & 1 deletion trunk/drivers/media/IR/ir-nec-decoder.c
Original file line number Diff line number Diff line change
Expand Up @@ -12,8 +12,8 @@
* GNU General Public License for more details.
*/

#include <media/ir-core.h>
#include <linux/bitrev.h>
#include "ir-core-priv.h"

#define NEC_NBITS 32
#define NEC_UNIT 562500 /* ns */
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2 changes: 1 addition & 1 deletion trunk/drivers/media/IR/ir-raw-event.c
Original file line number Diff line number Diff line change
Expand Up @@ -12,10 +12,10 @@
* GNU General Public License for more details.
*/

#include <media/ir-core.h>
#include <linux/workqueue.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
#include "ir-core-priv.h"

/* Define the max number of pulse/space transitions to buffer */
#define MAX_IR_EVENT_SIZE 512
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2 changes: 1 addition & 1 deletion trunk/drivers/media/IR/ir-rc5-decoder.c
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@
* the first two bits are start bits, and a third one is a filing bit
*/

#include <media/ir-core.h>
#include "ir-core-priv.h"

#define RC5_NBITS 14
#define RC5_UNIT 888888 /* ns */
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2 changes: 1 addition & 1 deletion trunk/drivers/media/IR/ir-sysfs.c
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/device.h>
#include <media/ir-core.h>
#include "ir-core-priv.h"

#define IRRCV_NUM_DEVICES 256

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87 changes: 10 additions & 77 deletions trunk/include/media/ir-core.h
Original file line number Diff line number Diff line change
Expand Up @@ -31,13 +31,6 @@ enum rc_driver_type {
RC_DRIVER_IR_RAW, /* Needs a Infra-Red pulse/space decoder */
};

enum raw_event_type {
IR_SPACE = (1 << 0),
IR_PULSE = (1 << 1),
IR_START_EVENT = (1 << 2),
IR_STOP_EVENT = (1 << 3),
};

/**
* struct ir_dev_props - Allow caller drivers to set special properties
* @driver_type: specifies if the driver or hardware have already a decoder,
Expand Down Expand Up @@ -65,14 +58,6 @@ struct ir_dev_props {
void (*close)(void *priv);
};

struct ir_raw_event_ctrl {
struct work_struct rx_work; /* for the rx decoding workqueue */
struct kfifo kfifo; /* fifo for the pulse/space durations */
ktime_t last_event; /* when last event occurred */
enum raw_event_type last_type; /* last event type */
struct input_dev *input_dev; /* pointer to the parent input_dev */
};

struct ir_input_dev {
struct device dev; /* device */
char *driver_name; /* Name of the driver module */
Expand All @@ -92,22 +77,16 @@ struct ir_input_dev {
u8 last_toggle; /* toggle of last command */
};

struct ir_raw_handler {
struct list_head list;

int (*decode)(struct input_dev *input_dev, s64 duration);
int (*raw_register)(struct input_dev *input_dev);
int (*raw_unregister)(struct input_dev *input_dev);
enum raw_event_type {
IR_SPACE = (1 << 0),
IR_PULSE = (1 << 1),
IR_START_EVENT = (1 << 2),
IR_STOP_EVENT = (1 << 3),
};

#define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr)

/* Routines from ir-keytable.c */

u32 ir_g_keycode_from_table(struct input_dev *input_dev,
u32 scancode);
void ir_repeat(struct input_dev *dev);
void ir_keydown(struct input_dev *dev, int scancode, u8 toggle);
/* From ir-keytable.c */
int __ir_input_register(struct input_dev *dev,
const struct ir_scancode_table *ir_codes,
const struct ir_dev_props *props,
Expand Down Expand Up @@ -143,60 +122,14 @@ static inline int ir_input_register(struct input_dev *dev,

void ir_input_unregister(struct input_dev *input_dev);

/* Routines from ir-sysfs.c */
void ir_repeat(struct input_dev *dev);
void ir_keydown(struct input_dev *dev, int scancode, u8 toggle);

int ir_register_class(struct input_dev *input_dev);
void ir_unregister_class(struct input_dev *input_dev);
/* From ir-raw-event.c */

/* Routines from ir-raw-event.c */
int ir_raw_event_register(struct input_dev *input_dev);
void ir_raw_event_unregister(struct input_dev *input_dev);
void ir_raw_event_handle(struct input_dev *input_dev);
int ir_raw_event_store(struct input_dev *input_dev, s64 duration);
int ir_raw_event_store_edge(struct input_dev *input_dev, enum raw_event_type type);
static inline void ir_raw_event_reset(struct input_dev *input_dev)
{
ir_raw_event_store(input_dev, 0);
ir_raw_event_handle(input_dev);
}
int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
void ir_raw_init(void);

/* from ir-nec-decoder.c */
#ifdef CONFIG_IR_NEC_DECODER_MODULE
#define load_nec_decode() request_module("ir-nec-decoder")
#else
#define load_nec_decode() 0
#endif

/* from ir-rc5-decoder.c */
#ifdef CONFIG_IR_RC5_DECODER_MODULE
#define load_rc5_decode() request_module("ir-rc5-decoder")
#else
#define load_rc5_decode() 0
#endif

/* macros for ir decoders */
#define PULSE(units) ((units))
#define SPACE(units) (-(units))
#define IS_RESET(duration) ((duration) == 0)
#define IS_PULSE(duration) ((duration) > 0)
#define IS_SPACE(duration) ((duration) < 0)
#define DURATION(duration) (abs((duration)))
#define IS_TRANSITION(x, y) ((x) * (y) < 0)
#define DECREASE_DURATION(duration, amount) \
do { \
if (IS_SPACE(duration)) \
duration += (amount); \
else if (IS_PULSE(duration)) \
duration -= (amount); \
} while (0)

#define TO_UNITS(duration, unit_len) \
((int)((duration) > 0 ? \
DIV_ROUND_CLOSEST(abs((duration)), (unit_len)) :\
-DIV_ROUND_CLOSEST(abs((duration)), (unit_len))))
#define TO_US(duration) ((int)TO_UNITS(duration, 1000))


#endif /* _IR_CORE */

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