^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * ImgTec IR Decoder setup for Sharp protocol.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2012-2014 Imagination Technologies Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include "img-ir-hw.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) /* Convert Sharp data to a scancode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) static int img_ir_sharp_scancode(int len, u64 raw, u64 enabled_protocols,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) struct img_ir_scancode_req *request)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) unsigned int addr, cmd, exp, chk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) if (len != 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) addr = (raw >> 0) & 0x1f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) cmd = (raw >> 5) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) exp = (raw >> 13) & 0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) chk = (raw >> 14) & 0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) /* validate data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) if (!exp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) if (chk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /* probably the second half of the message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) request->protocol = RC_PROTO_SHARP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) request->scancode = addr << 8 | cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) return IMG_IR_SCANCODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /* Convert Sharp scancode to Sharp data filter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static int img_ir_sharp_filter(const struct rc_scancode_filter *in,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct img_ir_filter *out, u64 protocols)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) unsigned int addr, cmd, exp = 0, chk = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) unsigned int addr_m, cmd_m, exp_m = 0, chk_m = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) addr = (in->data >> 8) & 0x1f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) addr_m = (in->mask >> 8) & 0x1f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) cmd = (in->data >> 0) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) cmd_m = (in->mask >> 0) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (cmd_m) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* if filtering commands, we can only match the first part */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) exp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) exp_m = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) chk = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) chk_m = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) out->data = addr |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) cmd << 5 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) exp << 13 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) chk << 14;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) out->mask = addr_m |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) cmd_m << 5 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) exp_m << 13 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) chk_m << 14;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * Sharp decoder
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * See also http://www.sbprojects.com/knowledge/ir/sharp.php
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct img_ir_decoder img_ir_sharp = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .type = RC_PROTO_BIT_SHARP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .control = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .decoden = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .decodend2 = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .code_type = IMG_IR_CODETYPE_PULSEDIST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .d1validsel = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) /* main timings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .tolerance = 20, /* 20% */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .timings = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* 0 symbol */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .s10 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .pulse = { 320 /* 320 us */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .space = { 680 /* 1 ms period */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) /* 1 symbol */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .s11 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .pulse = { 320 /* 320 us */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .space = { 1680 /* 2 ms period */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) /* free time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .ft = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .minlen = 15,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .maxlen = 15,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) .ft_min = 5000, /* 5 ms */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) /* scancode logic */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .scancode = img_ir_sharp_scancode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .filter = img_ir_sharp_filter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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