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Make bidirectional communication work between the keyboard halves. Make the set test LED USB command set the test LED of the left half, too.

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This commit is contained in:
László Monda
2016-10-19 19:39:00 +02:00
parent 1286d9cfc3
commit 7a6e5523fb
9 changed files with 167 additions and 37 deletions
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28
shared/i2c_adddresses.c Normal file
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#include "fsl_i2c.h"
#include "i2c_addresses.h"
void I2cRead(I2C_Type *baseAddress, uint8_t i2cAddress, uint8_t *data, uint8_t size)
{
i2c_master_transfer_t masterXfer;
masterXfer.slaveAddress = i2cAddress;
masterXfer.direction = kI2C_Read;
masterXfer.subaddress = 0;
masterXfer.subaddressSize = 0;
masterXfer.data = data;
masterXfer.dataSize = size;
masterXfer.flags = kI2C_TransferDefaultFlag;
I2C_MasterTransferBlocking(baseAddress, &masterXfer);
}
void I2cWrite(I2C_Type *baseAddress, uint8_t i2cAddress, uint8_t *data, uint8_t size)
{
i2c_master_transfer_t masterXfer;
masterXfer.slaveAddress = i2cAddress;
masterXfer.direction = kI2C_Write;
masterXfer.subaddress = 0;
masterXfer.subaddressSize = 0;
masterXfer.data = data;
masterXfer.dataSize = size;
masterXfer.flags = kI2C_TransferDefaultFlag;
I2C_MasterTransferBlocking(baseAddress, &masterXfer);
}

45
shared/i2c_addresses.h
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@@ -1,24 +1,35 @@
#ifndef __I2C_ADDRESSES_H__
#define __I2C_ADDRESSES_H__
// 7-bit I2C addresses - see http://www.i2c-bus.org/addressing/
// Includes:
// General call / Start byte 0b0000000
// CBUS address 0b0000001
// Reserved for different bus formats 0b0000010
// Reserved for future purposes 0b0000011
// High-Speed master code 0b00001XX
#define I2C_ADDRESS_LEFT_KEYBOARD_HALF 0b0001000
#define I2C_ADDRESS_EEPROM 0b1010000
#define I2C_ADDRESS_LED_DRIVER_LEFT 0b1110100
// LED driver / touchpad 0b1110101
// LED driver / touchpad 0b1110110
#define I2C_ADDRESS_LED_DRIVER_RIGHT 0b1110111
// Touchpad 0b00001XX
// 10-bit slave addressing 0b11110XX
// Reserved for future purposes 0b11111XX
#include "fsl_gpio.h"
#define IS_I2C_LED_DRIVER_ADDRESS(address) \
(I2C_ADDRESS_LED_DRIVER_LEFT <= (address) && (address) <= I2C_ADDRESS_LED_DRIVER_RIGHT)
// Macros:
// 7-bit I2C addresses - see http://www.i2c-bus.org/addressing/
// General call / Start byte 0b0000000
// CBUS address 0b0000001
// Reserved for different bus formats 0b0000010
// Reserved for future purposes 0b0000011
// High-Speed master code 0b00001XX
#define I2C_ADDRESS_LEFT_KEYBOARD_HALF 0b0001000
#define I2C_ADDRESS_EEPROM 0b1010000
#define I2C_ADDRESS_LED_DRIVER_LEFT 0b1110100
// LED driver / touchpad 0b1110101
// LED driver / touchpad 0b1110110
#define I2C_ADDRESS_LED_DRIVER_RIGHT 0b1110111
// Touchpad 0b00001XX
// 10-bit slave addressing 0b11110XX
// Reserved for future purposes 0b11111XX
#define IS_I2C_LED_DRIVER_ADDRESS(address) \
(I2C_ADDRESS_LED_DRIVER_LEFT <= (address) && (address) <= I2C_ADDRESS_LED_DRIVER_RIGHT)
// Functions:
void I2cRead(I2C_Type *baseAddress, uint8_t i2cAddress, uint8_t *data, uint8_t size);
void I2cWrite(I2C_Type *baseAddress, uint8_t i2cAddress, uint8_t *data, uint8_t size);
#endif