2 * This file is taken from the KeyboardioScanner module:
3 * https://github.com/keyboardio/KeyboardioScanner/blob/master/wire-protocol-constants.h
5 * Copyright (C) 2015-2018 Keyboard.io, Inc
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8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
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11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in all
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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27 #define TWI_CMD_NONE 0x00
28 #define TWI_CMD_VERSION 0x01
29 #define TWI_CMD_KEYSCAN_INTERVAL 0x02
30 #define TWI_CMD_LED_SET_ALL_TO 0x03
31 #define TWI_CMD_LED_SET_ONE_TO 0x04
32 #define TWI_CMD_COLS_USE_PULLUPS 0x05
33 #define TWI_CMD_LED_SPI_FREQUENCY 0x06
35 #define LED_SPI_FREQUENCY_4MHZ 0x07
36 #define LED_SPI_FREQUENCY_2MHZ 0x06
37 #define LED_SPI_FREQUENCY_1MHZ 0x05
38 #define LED_SPI_FREQUENCY_512KHZ 0x04
39 #define LED_SPI_FREQUENCY_256KHZ 0x03
40 #define LED_SPI_FREQUENCY_128KHZ 0x02
41 #define LED_SPI_FREQUENCY_64KHZ 0x01
42 #define LED_SPI_OFF 0x00
45 // 512KHZ seems to be the sweet spot in early testing
46 // so make it the default
47 #define LED_SPI_FREQUENCY_DEFAULT LED_SPI_FREQUENCY_512KHZ
50 #define TWI_CMD_LED_BASE 0x80
52 #define TWI_REPLY_NONE 0x00
53 #define TWI_REPLY_KEYDATA 0x01