forked from luck/tmp_suning_uos_patched
e589333f34
LIRC: add new IOCTL that enables learning mode (wide band receiver) Still missing features: carrier report & timeout reports. Will need to pack these into ir_raw_event Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
186 lines
6.3 KiB
C
186 lines
6.3 KiB
C
/*
|
|
* Remote Controller core header
|
|
*
|
|
* Copyright (C) 2009-2010 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_CORE
|
|
#define _IR_CORE
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <linux/kfifo.h>
|
|
#include <linux/time.h>
|
|
#include <linux/timer.h>
|
|
#include <media/rc-map.h>
|
|
|
|
extern int ir_core_debug;
|
|
#define IR_dprintk(level, fmt, arg...) if (ir_core_debug >= level) \
|
|
printk(KERN_DEBUG "%s: " fmt , __func__, ## arg)
|
|
|
|
enum rc_driver_type {
|
|
RC_DRIVER_SCANCODE = 0, /* Driver or hardware generates a scancode */
|
|
RC_DRIVER_IR_RAW, /* Needs a Infra-Red pulse/space decoder */
|
|
};
|
|
|
|
/**
|
|
* struct ir_dev_props - Allow caller drivers to set special properties
|
|
* @driver_type: specifies if the driver or hardware have already a decoder,
|
|
* or if it needs to use the IR raw event decoders to produce a scancode
|
|
* @allowed_protos: bitmask with the supported IR_TYPE_* protocols
|
|
* @scanmask: some hardware decoders are not capable of providing the full
|
|
* scancode to the application. As this is a hardware limit, we can't do
|
|
* anything with it. Yet, as the same keycode table can be used with other
|
|
* devices, a mask is provided to allow its usage. Drivers should generally
|
|
* leave this field in blank
|
|
* @timeout: optional time after which device stops sending data
|
|
* @min_timeout: minimum timeout supported by device
|
|
* @max_timeout: maximum timeout supported by device
|
|
* @rx_resolution : resolution (in ns) of input sampler
|
|
* @tx_resolution: resolution (in ns) of output sampler
|
|
* @priv: driver-specific data, to be used on the callbacks
|
|
* @change_protocol: allow changing the protocol used on hardware decoders
|
|
* @open: callback to allow drivers to enable polling/irq when IR input device
|
|
* is opened.
|
|
* @close: callback to allow drivers to disable polling/irq when IR input device
|
|
* is opened.
|
|
* @s_tx_mask: set transmitter mask (for devices with multiple tx outputs)
|
|
* @s_tx_carrier: set transmit carrier frequency
|
|
* @s_tx_duty_cycle: set transmit duty cycle (0% - 100%)
|
|
* @s_rx_carrier: inform driver about carrier it is expected to handle
|
|
* @tx_ir: transmit IR
|
|
* @s_idle: optional: enable/disable hardware idle mode, upon which,
|
|
device doesn't interrupt host until it sees IR pulses
|
|
* @s_learning_mode: enable wide band receiver used for learning
|
|
*/
|
|
struct ir_dev_props {
|
|
enum rc_driver_type driver_type;
|
|
unsigned long allowed_protos;
|
|
u32 scanmask;
|
|
|
|
u32 timeout;
|
|
u32 min_timeout;
|
|
u32 max_timeout;
|
|
|
|
u32 rx_resolution;
|
|
u32 tx_resolution;
|
|
|
|
void *priv;
|
|
int (*change_protocol)(void *priv, u64 ir_type);
|
|
int (*open)(void *priv);
|
|
void (*close)(void *priv);
|
|
int (*s_tx_mask)(void *priv, u32 mask);
|
|
int (*s_tx_carrier)(void *priv, u32 carrier);
|
|
int (*s_tx_duty_cycle)(void *priv, u32 duty_cycle);
|
|
int (*s_rx_carrier_range)(void *priv, u32 min, u32 max);
|
|
int (*tx_ir)(void *priv, int *txbuf, u32 n);
|
|
void (*s_idle)(void *priv, int enable);
|
|
int (*s_learning_mode)(void *priv, int enable);
|
|
};
|
|
|
|
struct ir_input_dev {
|
|
struct device dev; /* device */
|
|
char *driver_name; /* Name of the driver module */
|
|
struct ir_scancode_table rc_tab; /* scan/key table */
|
|
unsigned long devno; /* device number */
|
|
struct ir_dev_props *props; /* Device properties */
|
|
struct ir_raw_event_ctrl *raw; /* for raw pulse/space events */
|
|
struct input_dev *input_dev; /* the input device associated with this device */
|
|
bool idle;
|
|
|
|
/* key info - needed by IR keycode handlers */
|
|
spinlock_t keylock; /* protects the below members */
|
|
bool keypressed; /* current state */
|
|
unsigned long keyup_jiffies; /* when should the current keypress be released? */
|
|
struct timer_list timer_keyup; /* timer for releasing a keypress */
|
|
u32 last_keycode; /* keycode of last command */
|
|
u32 last_scancode; /* scancode of last command */
|
|
u8 last_toggle; /* toggle of last command */
|
|
};
|
|
|
|
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)
|
|
|
|
/* From ir-keytable.c */
|
|
int __ir_input_register(struct input_dev *dev,
|
|
const struct ir_scancode_table *ir_codes,
|
|
struct ir_dev_props *props,
|
|
const char *driver_name);
|
|
|
|
static inline int ir_input_register(struct input_dev *dev,
|
|
const char *map_name,
|
|
struct ir_dev_props *props,
|
|
const char *driver_name) {
|
|
struct ir_scancode_table *ir_codes;
|
|
struct ir_input_dev *ir_dev;
|
|
int rc;
|
|
|
|
if (!map_name)
|
|
return -EINVAL;
|
|
|
|
ir_codes = get_rc_map(map_name);
|
|
if (!ir_codes) {
|
|
ir_codes = get_rc_map(RC_MAP_EMPTY);
|
|
|
|
if (!ir_codes)
|
|
return -EINVAL;
|
|
}
|
|
|
|
rc = __ir_input_register(dev, ir_codes, props, driver_name);
|
|
if (rc < 0)
|
|
return -EINVAL;
|
|
|
|
ir_dev = input_get_drvdata(dev);
|
|
|
|
if (!rc && ir_dev->props && ir_dev->props->change_protocol)
|
|
rc = ir_dev->props->change_protocol(ir_dev->props->priv,
|
|
ir_codes->ir_type);
|
|
|
|
return rc;
|
|
}
|
|
|
|
void ir_input_unregister(struct input_dev *input_dev);
|
|
|
|
void ir_repeat(struct input_dev *dev);
|
|
void ir_keydown(struct input_dev *dev, int scancode, u8 toggle);
|
|
u32 ir_g_keycode_from_table(struct input_dev *input_dev, u32 scancode);
|
|
|
|
/* From ir-raw-event.c */
|
|
|
|
struct ir_raw_event {
|
|
unsigned pulse:1;
|
|
unsigned duration:31;
|
|
};
|
|
|
|
#define IR_MAX_DURATION 0x7FFFFFFF /* a bit more than 2 seconds */
|
|
|
|
void ir_raw_event_handle(struct input_dev *input_dev);
|
|
int ir_raw_event_store(struct input_dev *input_dev, struct ir_raw_event *ev);
|
|
int ir_raw_event_store_edge(struct input_dev *input_dev, enum raw_event_type type);
|
|
int ir_raw_event_store_with_filter(struct input_dev *input_dev,
|
|
struct ir_raw_event *ev);
|
|
void ir_raw_event_set_idle(struct input_dev *input_dev, int idle);
|
|
|
|
static inline void ir_raw_event_reset(struct input_dev *input_dev)
|
|
{
|
|
struct ir_raw_event ev = { .pulse = false, .duration = 0 };
|
|
ir_raw_event_store(input_dev, &ev);
|
|
ir_raw_event_handle(input_dev);
|
|
}
|
|
|
|
#endif /* _IR_CORE */
|