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Release 4.11 drivers/media/rc/img-ir/img-ir-sharp.c

/*
 * ImgTec IR Decoder setup for Sharp 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 Sharp data to a scancode */

static int img_ir_sharp_scancode(int len, u64 raw, u64 enabled_protocols, struct img_ir_scancode_req *request) { unsigned int addr, cmd, exp, chk; if (len != 15) return -EINVAL; addr = (raw >> 0) & 0x1f; cmd = (raw >> 5) & 0xff; exp = (raw >> 13) & 0x1; chk = (raw >> 14) & 0x1; /* validate data */ if (!exp) return -EINVAL; if (chk) /* probably the second half of the message */ return -EINVAL; request->protocol = RC_TYPE_SHARP; request->scancode = addr << 8 | cmd; return IMG_IR_SCANCODE; }

Contributors

PersonTokensPropCommitsCommitProp
James Hogan10488.14%133.33%
Sifan Naeem97.63%133.33%
David Härdeman54.24%133.33%
Total118100.00%3100.00%

/* Convert Sharp scancode to Sharp data filter */
static int img_ir_sharp_filter(const struct rc_scancode_filter *in, struct img_ir_filter *out, u64 protocols) { unsigned int addr, cmd, exp = 0, chk = 0; unsigned int addr_m, cmd_m, exp_m = 0, chk_m = 0; addr = (in->data >> 8) & 0x1f; addr_m = (in->mask >> 8) & 0x1f; cmd = (in->data >> 0) & 0xff; cmd_m = (in->mask >> 0) & 0xff; if (cmd_m) { /* if filtering commands, we can only match the first part */ exp = 1; exp_m = 1; chk = 0; chk_m = 1; } out->data = addr | cmd << 5 | exp << 13 | chk << 14; out->mask = addr_m | cmd_m << 5 | exp_m << 13 | chk_m << 14; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
James Hogan158100.00%1100.00%
Total158100.00%1100.00%

/* * Sharp decoder * See also http://www.sbprojects.com/knowledge/ir/sharp.php */ struct img_ir_decoder img_ir_sharp = { .type = RC_BIT_SHARP, .control = { .decoden = 0, .decodend2 = 1, .code_type = IMG_IR_CODETYPE_PULSEDIST, .d1validsel = 1, }, /* main timings */ .tolerance = 20, /* 20% */ .timings = { /* 0 symbol */ .s10 = { .pulse = { 320 /* 320 us */ }, .space = { 680 /* 1 ms period */ }, }, /* 1 symbol */ .s11 = { .pulse = { 320 /* 320 us */ }, .space = { 1680 /* 2 ms period */ }, }, /* free time */ .ft = { .minlen = 15, .maxlen = 15, .ft_min = 5000, /* 5 ms */ }, }, /* scancode logic */ .scancode = img_ir_sharp_scancode, .filter = img_ir_sharp_filter, };

Overall Contributors

PersonTokensPropCommitsCommitProp
James Hogan39596.58%250.00%
Sifan Naeem92.20%125.00%
David Härdeman51.22%125.00%
Total409100.00%4100.00%
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