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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * ImgTec IR Decoder setup for JVC protocol.4 *5 * Copyright 2012-2014 Imagination Technologies Ltd.6 */7 8#include "img-ir-hw.h"9 10/* Convert JVC data to a scancode */11static int img_ir_jvc_scancode(int len, u64 raw, u64 enabled_protocols,12 struct img_ir_scancode_req *request)13{14 unsigned int cust, data;15 16 if (len != 16)17 return -EINVAL;18 19 cust = (raw >> 0) & 0xff;20 data = (raw >> 8) & 0xff;21 22 request->protocol = RC_PROTO_JVC;23 request->scancode = cust << 8 | data;24 return IMG_IR_SCANCODE;25}26 27/* Convert JVC scancode to JVC data filter */28static int img_ir_jvc_filter(const struct rc_scancode_filter *in,29 struct img_ir_filter *out, u64 protocols)30{31 unsigned int cust, data;32 unsigned int cust_m, data_m;33 34 cust = (in->data >> 8) & 0xff;35 cust_m = (in->mask >> 8) & 0xff;36 data = (in->data >> 0) & 0xff;37 data_m = (in->mask >> 0) & 0xff;38 39 out->data = cust | data << 8;40 out->mask = cust_m | data_m << 8;41 42 return 0;43}44 45/*46 * JVC decoder47 * See also http://www.sbprojects.com/knowledge/ir/jvc.php48 * http://support.jvc.com/consumer/support/documents/RemoteCodes.pdf49 */50struct img_ir_decoder img_ir_jvc = {51 .type = RC_PROTO_BIT_JVC,52 .control = {53 .decoden = 1,54 .code_type = IMG_IR_CODETYPE_PULSEDIST,55 },56 /* main timings */57 .unit = 527500, /* 527.5 us */58 .timings = {59 /* leader symbol */60 .ldr = {61 .pulse = { 16 /* 8.44 ms */ },62 .space = { 8 /* 4.22 ms */ },63 },64 /* 0 symbol */65 .s00 = {66 .pulse = { 1 /* 527.5 us +-60 us */ },67 .space = { 1 /* 527.5 us */ },68 },69 /* 1 symbol */70 .s01 = {71 .pulse = { 1 /* 527.5 us +-60 us */ },72 .space = { 3 /* 1.5825 ms +-40 us */ },73 },74 /* free time */75 .ft = {76 .minlen = 16,77 .maxlen = 16,78 .ft_min = 10, /* 5.275 ms */79 },80 },81 /* scancode logic */82 .scancode = img_ir_jvc_scancode,83 .filter = img_ir_jvc_filter,84};85