media/rc/rc-core-priv.h

1 /* SPDX-License-Identifier: GPL-2.0 */
5  * Copyright (C) 2010 by Mauro Carvalho Chehab
9 #define _RC_CORE_PRIV
11 #define	RC_DEV_MAX		256
12 /* Define the max number of pulse/space transitions to buffer */
13 #define	MAX_IR_EVENT_SIZE	512
17 #include <media/rc-core.h>
20  * rc_open - Opens a RC device
27  * rc_close - Closes a RC device
36 	u64 protocols; /* which are handled by this handler */
39 		      struct ir_raw_event *events, unsigned int max);
43 	/* These two should only be used by the mce kbd decoder */
169 	return d1 > (d2 - margin);  in geq_margin()
174 	return ((d1 > (d2 - margin)) && (d1 < (d2 + margin)));  in eq_margin()
179 	return x->pulse != y->pulse;  in is_transition()
184 	if (duration > ev->duration)  in decrease_duration()
185 		ev->duration = 0;  in decrease_duration()
187 		ev->duration -= duration;  in decrease_duration()
196 #define TO_STR(is_pulse)		((is_pulse) ? "pulse" : "space")
212  * struct ir_raw_timings_manchester - Manchester coding timings
229 int ir_raw_gen_manchester(struct ir_raw_event **ev, unsigned int max,
234  * ir_raw_gen_pulse_space() - generate pulse and space raw events.
237  * @max:		Pointer to number of raw events available in buffer.
243  *		-ENOBUFS if there isn't enough buffer space to write both raw
244  *		events. In this case @max events will have been written.
247 					 unsigned int *max,  in ir_raw_gen_pulse_space()  argument
251 	if (!*max)  in ir_raw_gen_pulse_space()
252 		return -ENOBUFS;  in ir_raw_gen_pulse_space()
254 	if (!--*max)  in ir_raw_gen_pulse_space()
255 		return -ENOBUFS;  in ir_raw_gen_pulse_space()
257 	--*max;  in ir_raw_gen_pulse_space()
262  * struct ir_raw_timings_pd - pulse-distance modulation timings
281 int ir_raw_gen_pd(struct ir_raw_event **ev, unsigned int max,
286  * struct ir_raw_timings_pl - pulse-length modulation timings
301 int ir_raw_gen_pl(struct ir_raw_event **ev, unsigned int max,
306  * Routines from rc-raw.c to be used internally and by decoders