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Commit d8a2ae5c authored by Sean Young's avatar Sean Young Committed by Mauro Carvalho Chehab
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[media] rc: ir-jvc-decoder: Add encode capability



Add the capability to encode JVC scancodes as raw events.

Signed-off-by: default avatarSean Young <sean@mess.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 141cfb14
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+39 −0
Original line number Diff line number Diff line
@@ -170,9 +170,48 @@ static int ir_jvc_decode(struct rc_dev *dev, struct ir_raw_event ev)
	return -EINVAL;
}

static const struct ir_raw_timings_pd ir_jvc_timings = {
	.header_pulse  = JVC_HEADER_PULSE,
	.header_space  = JVC_HEADER_SPACE,
	.bit_pulse     = JVC_BIT_PULSE,
	.bit_space[0]  = JVC_BIT_0_SPACE,
	.bit_space[1]  = JVC_BIT_1_SPACE,
	.trailer_pulse = JVC_TRAILER_PULSE,
	.trailer_space = JVC_TRAILER_SPACE,
	.msb_first     = 1,
};

/**
 * ir_jvc_encode() - Encode a scancode as a stream of raw events
 *
 * @protocol:	protocol to encode
 * @scancode:	scancode to encode
 * @events:	array of raw ir events to write into
 * @max:	maximum size of @events
 *
 * Returns:	The number of events written.
 *		-ENOBUFS if there isn't enough space in the array to fit the
 *		encoding. In this case all @max events will have been written.
 */
static int ir_jvc_encode(enum rc_type protocol, u32 scancode,
			 struct ir_raw_event *events, unsigned int max)
{
	struct ir_raw_event *e = events;
	int ret;
	u32 raw = (bitrev8((scancode >> 8) & 0xff) << 8) |
		  (bitrev8((scancode >> 0) & 0xff) << 0);

	ret = ir_raw_gen_pd(&e, max, &ir_jvc_timings, JVC_NBITS, raw);
	if (ret < 0)
		return ret;

	return e - events;
}

static struct ir_raw_handler jvc_handler = {
	.protocols	= RC_BIT_JVC,
	.decode		= ir_jvc_decode,
	.encode		= ir_jvc_encode,
};

static int __init ir_jvc_decode_init(void)