^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 Sanyo 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) * From ir-sanyo-decoder.c:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * This protocol uses the NEC protocol timings. However, data is formatted as:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * 13 bits Custom Code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * 13 bits NOT(Custom Code)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * 8 bits Key data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * 8 bits NOT(Key data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * According with LIRC, this protocol is used on Sanyo, Aiwa and Chinon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * Information for this protocol is available at the Sanyo LC7461 datasheet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "img-ir-hw.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /* Convert Sanyo data to a scancode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static int img_ir_sanyo_scancode(int len, u64 raw, u64 enabled_protocols,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct img_ir_scancode_req *request)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) unsigned int addr, addr_inv, data, data_inv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) /* a repeat code has no data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) if (!len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) return IMG_IR_REPEATCODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) if (len != 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) addr = (raw >> 0) & 0x1fff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) addr_inv = (raw >> 13) & 0x1fff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) data = (raw >> 26) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) data_inv = (raw >> 34) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /* Validate data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) if ((data_inv ^ data) != 0xff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* Validate address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) if ((addr_inv ^ addr) != 0x1fff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /* Normal Sanyo */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) request->protocol = RC_PROTO_SANYO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) request->scancode = addr << 8 | data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return IMG_IR_SCANCODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* Convert Sanyo scancode to Sanyo data filter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static int img_ir_sanyo_filter(const struct rc_scancode_filter *in,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct img_ir_filter *out, u64 protocols)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) unsigned int addr, addr_inv, data, data_inv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) unsigned int addr_m, data_m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) data = in->data & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) data_m = in->mask & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) data_inv = data ^ 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) if (in->data & 0xff700000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) addr = (in->data >> 8) & 0x1fff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) addr_m = (in->mask >> 8) & 0x1fff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) addr_inv = addr ^ 0x1fff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) out->data = (u64)data_inv << 34 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) (u64)data << 26 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) addr_inv << 13 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) out->mask = (u64)data_m << 34 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) (u64)data_m << 26 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) addr_m << 13 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) addr_m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /* Sanyo decoder */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct img_ir_decoder img_ir_sanyo = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .type = RC_PROTO_BIT_SANYO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .control = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .decoden = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .code_type = IMG_IR_CODETYPE_PULSEDIST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /* main timings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .unit = 562500, /* 562.5 us */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .timings = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) /* leader symbol */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .ldr = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .pulse = { 16 /* 9ms */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .space = { 8 /* 4.5ms */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) /* 0 symbol */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .s00 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .pulse = { 1 /* 562.5 us */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .space = { 1 /* 562.5 us */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) /* 1 symbol */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .s01 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .pulse = { 1 /* 562.5 us */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .space = { 3 /* 1687.5 us */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /* free time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .ft = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .minlen = 42,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) .maxlen = 42,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .ft_min = 10, /* 5.625 ms */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) /* repeat codes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .repeat = 108, /* 108 ms */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) .rtimings = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) /* leader symbol */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) .ldr = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .space = { 4 /* 2.25 ms */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) /* free time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .ft = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .minlen = 0, /* repeat code has no data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .maxlen = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /* scancode logic */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .scancode = img_ir_sanyo_scancode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .filter = img_ir_sanyo_filter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) };
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