2 * ImgTec IR Decoder setup for Sanyo protocol.
4 * Copyright 2012-2014 Imagination Technologies Ltd.
6 * From ir-sanyo-decoder.c:
8 * This protocol uses the NEC protocol timings. However, data is formatted as:
10 * 13 bits NOT(Custom Code)
12 * 8 bits NOT(Key data)
14 * According with LIRC, this protocol is used on Sanyo, Aiwa and Chinon
15 * Information for this protocol is available at the Sanyo LC7461 datasheet.
18 #include "img-ir-hw.h"
20 /* Convert Sanyo data to a scancode */
21 static int img_ir_sanyo_scancode(int len, u64 raw, int *scancode, u64 protocols)
23 unsigned int addr, addr_inv, data, data_inv;
24 /* a repeat code has no data */
26 return IMG_IR_REPEATCODE;
29 addr = (raw >> 0) & 0x1fff;
30 addr_inv = (raw >> 13) & 0x1fff;
31 data = (raw >> 26) & 0xff;
32 data_inv = (raw >> 34) & 0xff;
34 if ((data_inv ^ data) != 0xff)
36 /* Validate address */
37 if ((addr_inv ^ addr) != 0x1fff)
41 *scancode = addr << 8 | data;
42 return IMG_IR_SCANCODE;
45 /* Convert Sanyo scancode to Sanyo data filter */
46 static int img_ir_sanyo_filter(const struct rc_scancode_filter *in,
47 struct img_ir_filter *out, u64 protocols)
49 unsigned int addr, addr_inv, data, data_inv;
50 unsigned int addr_m, data_m;
52 data = in->data & 0xff;
53 data_m = in->mask & 0xff;
54 data_inv = data ^ 0xff;
56 if (in->data & 0xff700000)
59 addr = (in->data >> 8) & 0x1fff;
60 addr_m = (in->mask >> 8) & 0x1fff;
61 addr_inv = addr ^ 0x1fff;
63 out->data = (u64)data_inv << 34 |
67 out->mask = (u64)data_m << 34 |
75 struct img_ir_decoder img_ir_sanyo = {
79 .code_type = IMG_IR_CODETYPE_PULSEDIST,
82 .unit = 562500, /* 562.5 us */
86 .pulse = { 16 /* 9ms */ },
87 .space = { 8 /* 4.5ms */ },
91 .pulse = { 1 /* 562.5 us */ },
92 .space = { 1 /* 562.5 us */ },
96 .pulse = { 1 /* 562.5 us */ },
97 .space = { 3 /* 1687.5 us */ },
103 .ft_min = 10, /* 5.625 ms */
107 .repeat = 108, /* 108 ms */
111 .space = { 4 /* 2.25 ms */ },
115 .minlen = 0, /* repeat code has no data */
120 .scancode = img_ir_sanyo_scancode,
121 .filter = img_ir_sanyo_filter,