89 lines
2.0 KiB
C
89 lines
2.0 KiB
C
|
/*
|
||
|
|
* ImgTec IR Decoder setup for JVC protocol.
|
||
|
|
*
|
||
|
|
* Copyright 2012-2014 Imagination Technologies Ltd.
|
||
|
|
*
|
||
|
|
* 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; either version 2 of the License, or (at your
|
||
|
|
* option) any later version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "img-ir-hw.h"
|
||
|
|
|
||
|
|
/* Convert JVC data to a scancode */
|
||
|
|
static int img_ir_jvc_scancode(int len, u64 raw, enum rc_type *protocol,
|
||
|
|
u32 *scancode, u64 enabled_protocols)
|
||
|
|
{
|
||
|
|
unsigned int cust, data;
|
||
|
|
|
||
|
|
if (len != 16)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
cust = (raw >> 0) & 0xff;
|
||
|
|
data = (raw >> 8) & 0xff;
|
||
|
|
|
||
|
|
*protocol = RC_TYPE_JVC;
|
||
|
|
*scancode = cust << 8 | data;
|
||
|
|
return IMG_IR_SCANCODE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Convert JVC scancode to JVC data filter */
|
||
|
|
static int img_ir_jvc_filter(const struct rc_scancode_filter *in,
|
||
|
|
struct img_ir_filter *out, u64 protocols)
|
||
|
|
{
|
||
|
|
unsigned int cust, data;
|
||
|
|
unsigned int cust_m, data_m;
|
||
|
|
|
||
|
|
cust = (in->data >> 8) & 0xff;
|
||
|
|
cust_m = (in->mask >> 8) & 0xff;
|
||
|
|
data = (in->data >> 0) & 0xff;
|
||
|
|
data_m = (in->mask >> 0) & 0xff;
|
||
|
|
|
||
|
|
out->data = cust | data << 8;
|
||
|
|
out->mask = cust_m | data_m << 8;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* JVC decoder
|
||
|
|
* See also http://www.sbprojects.com/knowledge/ir/jvc.php
|
||
|
|
* http://support.jvc.com/consumer/support/documents/RemoteCodes.pdf
|
||
|
|
*/
|
||
|
|
struct img_ir_decoder img_ir_jvc = {
|
||
|
|
.type = RC_BIT_JVC,
|
||
|
|
.control = {
|
||
|
|
.decoden = 1,
|
||
|
|
.code_type = IMG_IR_CODETYPE_PULSEDIST,
|
||
|
|
},
|
||
|
|
/* main timings */
|
||
|
|
.unit = 527500, /* 527.5 us */
|
||
|
|
.timings = {
|
||
|
|
/* leader symbol */
|
||
|
|
.ldr = {
|
||
|
|
.pulse = { 16 /* 8.44 ms */ },
|
||
|
|
.space = { 8 /* 4.22 ms */ },
|
||
|
|
},
|
||
|
|
/* 0 symbol */
|
||
|
|
.s00 = {
|
||
|
|
.pulse = { 1 /* 527.5 us +-60 us */ },
|
||
|
|
.space = { 1 /* 527.5 us */ },
|
||
|
|
},
|
||
|
|
/* 1 symbol */
|
||
|
|
.s01 = {
|
||
|
|
.pulse = { 1 /* 527.5 us +-60 us */ },
|
||
|
|
.space = { 3 /* 1.5825 ms +-40 us */ },
|
||
|
|
},
|
||
|
|
/* free time */
|
||
|
|
.ft = {
|
||
|
|
.minlen = 16,
|
||
|
|
.maxlen = 16,
|
||
|
|
.ft_min = 10, /* 5.275 ms */
|
||
|
|
},
|
||
|
|
},
|
||
|
|
/* scancode logic */
|
||
|
|
.scancode = img_ir_jvc_scancode,
|
||
|
|
.filter = img_ir_jvc_filter,
|
||
|
|
};
|