1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * ImgTec IR Decoder setup for JVC protocol.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright 2012-2014 Imagination Technologies Ltd.
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include "img-ir-hw.h"
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun /* Convert JVC data to a scancode */
img_ir_jvc_scancode(int len,u64 raw,u64 enabled_protocols,struct img_ir_scancode_req * request)11*4882a593Smuzhiyun static int img_ir_jvc_scancode(int len, u64 raw, u64 enabled_protocols,
12*4882a593Smuzhiyun struct img_ir_scancode_req *request)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun unsigned int cust, data;
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun if (len != 16)
17*4882a593Smuzhiyun return -EINVAL;
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun cust = (raw >> 0) & 0xff;
20*4882a593Smuzhiyun data = (raw >> 8) & 0xff;
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun request->protocol = RC_PROTO_JVC;
23*4882a593Smuzhiyun request->scancode = cust << 8 | data;
24*4882a593Smuzhiyun return IMG_IR_SCANCODE;
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun /* Convert JVC scancode to JVC data filter */
img_ir_jvc_filter(const struct rc_scancode_filter * in,struct img_ir_filter * out,u64 protocols)28*4882a593Smuzhiyun static int img_ir_jvc_filter(const struct rc_scancode_filter *in,
29*4882a593Smuzhiyun struct img_ir_filter *out, u64 protocols)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun unsigned int cust, data;
32*4882a593Smuzhiyun unsigned int cust_m, data_m;
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun cust = (in->data >> 8) & 0xff;
35*4882a593Smuzhiyun cust_m = (in->mask >> 8) & 0xff;
36*4882a593Smuzhiyun data = (in->data >> 0) & 0xff;
37*4882a593Smuzhiyun data_m = (in->mask >> 0) & 0xff;
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun out->data = cust | data << 8;
40*4882a593Smuzhiyun out->mask = cust_m | data_m << 8;
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun return 0;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun /*
46*4882a593Smuzhiyun * JVC decoder
47*4882a593Smuzhiyun * See also http://www.sbprojects.com/knowledge/ir/jvc.php
48*4882a593Smuzhiyun * http://support.jvc.com/consumer/support/documents/RemoteCodes.pdf
49*4882a593Smuzhiyun */
50*4882a593Smuzhiyun struct img_ir_decoder img_ir_jvc = {
51*4882a593Smuzhiyun .type = RC_PROTO_BIT_JVC,
52*4882a593Smuzhiyun .control = {
53*4882a593Smuzhiyun .decoden = 1,
54*4882a593Smuzhiyun .code_type = IMG_IR_CODETYPE_PULSEDIST,
55*4882a593Smuzhiyun },
56*4882a593Smuzhiyun /* main timings */
57*4882a593Smuzhiyun .unit = 527500, /* 527.5 us */
58*4882a593Smuzhiyun .timings = {
59*4882a593Smuzhiyun /* leader symbol */
60*4882a593Smuzhiyun .ldr = {
61*4882a593Smuzhiyun .pulse = { 16 /* 8.44 ms */ },
62*4882a593Smuzhiyun .space = { 8 /* 4.22 ms */ },
63*4882a593Smuzhiyun },
64*4882a593Smuzhiyun /* 0 symbol */
65*4882a593Smuzhiyun .s00 = {
66*4882a593Smuzhiyun .pulse = { 1 /* 527.5 us +-60 us */ },
67*4882a593Smuzhiyun .space = { 1 /* 527.5 us */ },
68*4882a593Smuzhiyun },
69*4882a593Smuzhiyun /* 1 symbol */
70*4882a593Smuzhiyun .s01 = {
71*4882a593Smuzhiyun .pulse = { 1 /* 527.5 us +-60 us */ },
72*4882a593Smuzhiyun .space = { 3 /* 1.5825 ms +-40 us */ },
73*4882a593Smuzhiyun },
74*4882a593Smuzhiyun /* free time */
75*4882a593Smuzhiyun .ft = {
76*4882a593Smuzhiyun .minlen = 16,
77*4882a593Smuzhiyun .maxlen = 16,
78*4882a593Smuzhiyun .ft_min = 10, /* 5.275 ms */
79*4882a593Smuzhiyun },
80*4882a593Smuzhiyun },
81*4882a593Smuzhiyun /* scancode logic */
82*4882a593Smuzhiyun .scancode = img_ir_jvc_scancode,
83*4882a593Smuzhiyun .filter = img_ir_jvc_filter,
84*4882a593Smuzhiyun };
85