linux/include/media/lirc.h

/*
 * lirc.h - linux infrared remote control header file
 * last modified 2010/07/13 by Jarod Wilson
 */

#ifndef _LINUX_LIRC_H
#define _LINUX_LIRC_H

#include <linux/types.h>
#include <linux/ioctl.h>

#define PULSE_BIT       0x01000000
#define PULSE_MASK      0x00FFFFFF

#define LIRC_MODE2_SPACE     0x00000000
#define LIRC_MODE2_PULSE     0x01000000
#define LIRC_MODE2_FREQUENCY 0x02000000
#define LIRC_MODE2_TIMEOUT   0x03000000

#define LIRC_VALUE_MASK      0x00FFFFFF
#define LIRC_MODE2_MASK      0xFF000000

#define LIRC_SPACE(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_SPACE)
#define LIRC_PULSE(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_PULSE)
#define LIRC_FREQUENCY(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_FREQUENCY)
#define LIRC_TIMEOUT(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_TIMEOUT)

#define LIRC_VALUE(val) ((val)&LIRC_VALUE_MASK)
#define LIRC_MODE2(val) ((val)&LIRC_MODE2_MASK)

#define LIRC_IS_SPACE(val) (LIRC_MODE2(val) == LIRC_MODE2_SPACE)
#define LIRC_IS_PULSE(val) (LIRC_MODE2(val) == LIRC_MODE2_PULSE)
#define LIRC_IS_FREQUENCY(val) (LIRC_MODE2(val) == LIRC_MODE2_FREQUENCY)
#define LIRC_IS_TIMEOUT(val) (LIRC_MODE2(val) == LIRC_MODE2_TIMEOUT)

/* used heavily by lirc userspace */
#define lirc_t int

/*** lirc compatible hardware features ***/

#define LIRC_MODE2SEND(x) (x)
#define LIRC_SEND2MODE(x) (x)
#define LIRC_MODE2REC(x) ((x) << 16)
#define LIRC_REC2MODE(x) ((x) >> 16)

#define LIRC_MODE_RAW                  0x00000001
#define LIRC_MODE_PULSE                0x00000002
#define LIRC_MODE_MODE2                0x00000004
#define LIRC_MODE_LIRCCODE             0x00000010


#define LIRC_CAN_SEND_RAW              LIRC_MODE2SEND(LIRC_MODE_RAW)
#define LIRC_CAN_SEND_PULSE            LIRC_MODE2SEND(LIRC_MODE_PULSE)
#define LIRC_CAN_SEND_MODE2            LIRC_MODE2SEND(LIRC_MODE_MODE2)
#define LIRC_CAN_SEND_LIRCCODE         LIRC_MODE2SEND(LIRC_MODE_LIRCCODE)

#define LIRC_CAN_SEND_MASK             0x0000003f

#define LIRC_CAN_SET_SEND_CARRIER      0x00000100
#define LIRC_CAN_SET_SEND_DUTY_CYCLE   0x00000200
#define LIRC_CAN_SET_TRANSMITTER_MASK  0x00000400

#define LIRC_CAN_REC_RAW               LIRC_MODE2REC(LIRC_MODE_RAW)
#define LIRC_CAN_REC_PULSE             LIRC_MODE2REC(LIRC_MODE_PULSE)
#define LIRC_CAN_REC_MODE2             LIRC_MODE2REC(LIRC_MODE_MODE2)
#define LIRC_CAN_REC_LIRCCODE          LIRC_MODE2REC(LIRC_MODE_LIRCCODE)

#define LIRC_CAN_REC_MASK              LIRC_MODE2REC(LIRC_CAN_SEND_MASK)

#define LIRC_CAN_SET_REC_CARRIER       (LIRC_CAN_SET_SEND_CARRIER << 16)
#define LIRC_CAN_SET_REC_DUTY_CYCLE    (LIRC_CAN_SET_SEND_DUTY_CYCLE << 16)

#define LIRC_CAN_SET_REC_DUTY_CYCLE_RANGE 0x40000000
#define LIRC_CAN_SET_REC_CARRIER_RANGE    0x80000000
#define LIRC_CAN_GET_REC_RESOLUTION       0x20000000
#define LIRC_CAN_SET_REC_TIMEOUT          0x10000000
#define LIRC_CAN_SET_REC_FILTER           0x08000000

#define LIRC_CAN_MEASURE_CARRIER          0x02000000
#define LIRC_CAN_USE_WIDEBAND_RECEIVER    0x04000000

#define LIRC_CAN_SEND(x) ((x)&LIRC_CAN_SEND_MASK)
#define LIRC_CAN_REC(x) ((x)&LIRC_CAN_REC_MASK)

#define LIRC_CAN_NOTIFY_DECODE            0x01000000

/*** IOCTL commands for lirc driver ***/

#define LIRC_GET_FEATURES              _IOR('i', 0x00000000, __u32)

#define LIRC_GET_SEND_MODE             _IOR('i', 0x00000001, __u32)
#define LIRC_GET_REC_MODE              _IOR('i', 0x00000002, __u32)
#define LIRC_GET_SEND_CARRIER          _IOR('i', 0x00000003, __u32)
#define LIRC_GET_REC_CARRIER           _IOR('i', 0x00000004, __u32)
#define LIRC_GET_SEND_DUTY_CYCLE       _IOR('i', 0x00000005, __u32)
#define LIRC_GET_REC_DUTY_CYCLE        _IOR('i', 0x00000006, __u32)
#define LIRC_GET_REC_RESOLUTION        _IOR('i', 0x00000007, __u32)

#define LIRC_GET_MIN_TIMEOUT           _IOR('i', 0x00000008, __u32)
#define LIRC_GET_MAX_TIMEOUT           _IOR('i', 0x00000009, __u32)

#define LIRC_GET_MIN_FILTER_PULSE      _IOR('i', 0x0000000a, __u32)
#define LIRC_GET_MAX_FILTER_PULSE      _IOR('i', 0x0000000b, __u32)
#define LIRC_GET_MIN_FILTER_SPACE      _IOR('i', 0x0000000c, __u32)
#define LIRC_GET_MAX_FILTER_SPACE      _IOR('i', 0x0000000d, __u32)

/* code length in bits, currently only for LIRC_MODE_LIRCCODE */
#define LIRC_GET_LENGTH                _IOR('i', 0x0000000f, __u32)

#define LIRC_SET_SEND_MODE             _IOW('i', 0x00000011, __u32)
#define LIRC_SET_REC_MODE              _IOW('i', 0x00000012, __u32)
/* Note: these can reset the according pulse_width */
#define LIRC_SET_SEND_CARRIER          _IOW('i', 0x00000013, __u32)
#define LIRC_SET_REC_CARRIER           _IOW('i', 0x00000014, __u32)
#define LIRC_SET_SEND_DUTY_CYCLE       _IOW('i', 0x00000015, __u32)
#define LIRC_SET_REC_DUTY_CYCLE        _IOW('i', 0x00000016, __u32)
#define LIRC_SET_TRANSMITTER_MASK      _IOW('i', 0x00000017, __u32)

/*
 * when a timeout != 0 is set the driver will send a
 * LIRC_MODE2_TIMEOUT data packet, otherwise LIRC_MODE2_TIMEOUT is
 * never sent, timeout is disabled by default
 */
#define LIRC_SET_REC_TIMEOUT           _IOW('i', 0x00000018, __u32)

/* 1 enables, 0 disables timeout reports in MODE2 */
#define LIRC_SET_REC_TIMEOUT_REPORTS   _IOW('i', 0x00000019, __u32)

/*
 * pulses shorter than this are filtered out by hardware (software
 * emulation in lirc_dev?)
 */
#define LIRC_SET_REC_FILTER_PULSE      _IOW('i', 0x0000001a, __u32)
/*
 * spaces shorter than this are filtered out by hardware (software
 * emulation in lirc_dev?)
 */
#define LIRC_SET_REC_FILTER_SPACE      _IOW('i', 0x0000001b, __u32)
/*
 * if filter cannot be set independently for pulse/space, this should
 * be used
 */
#define LIRC_SET_REC_FILTER            _IOW('i', 0x0000001c, __u32)

/*
 * if enabled from the next key press on the driver will send
 * LIRC_MODE2_FREQUENCY packets
 */
#define LIRC_SET_MEASURE_CARRIER_MODE	_IOW('i', 0x0000001d, __u32)

/*
 * to set a range use
 * LIRC_SET_REC_DUTY_CYCLE_RANGE/LIRC_SET_REC_CARRIER_RANGE with the
 * lower bound first and later
 * LIRC_SET_REC_DUTY_CYCLE/LIRC_SET_REC_CARRIER with the upper bound
 */

#define LIRC_SET_REC_DUTY_CYCLE_RANGE  _IOW('i', 0x0000001e, __u32)
#define LIRC_SET_REC_CARRIER_RANGE     _IOW('i', 0x0000001f, __u32)

#define LIRC_NOTIFY_DECODE             _IO('i', 0x00000020)

#define LIRC_SETUP_START               _IO('i', 0x00000021)
#define LIRC_SETUP_END                 _IO('i', 0x00000022)

#define LIRC_SET_WIDEBAND_RECEIVER     _IOW('i', 0x00000023, __u32)

#endif