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Tidy up existing i2c_master implementations (#15376)

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* Move chibios defines out of header

* Make some avr defines internal
This commit is contained in:
Joel Challis 2021-12-02 14:32:31 +00:00 • committed by GitHub
parent 4466261895
commit 3bf2403244
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 71 additions and 81 deletions
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7
platforms/avr/drivers/i2c_master.c
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@ -32,6 +32,9 @@
# define I2C_START_RETRY_COUNT 20
#endif // I2C_START_RETRY_COUNT
#define I2C_ACTION_READ 0x01
#define I2C_ACTION_WRITE 0x00
#define TWBR_val (((F_CPU / F_SCL) - 16) / 2)
#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
@ -154,7 +157,7 @@ int16_t i2c_read_nack(uint16_t timeout) {
}
i2c_status_t i2c_transmit(uint8_t address, const uint8_t* data, uint16_t length, uint16_t timeout) {
i2c_status_t status = i2c_start(address | I2C_WRITE, timeout);
i2c_status_t status = i2c_start(address | I2C_ACTION_WRITE, timeout);
for (uint16_t i = 0; i < length && status >= 0; i++) {
status = i2c_write(data[i], timeout);
@ -166,7 +169,7 @@ i2c_status_t i2c_transmit(uint8_t address, const uint8_t* data, uint16_t length,
}
i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout) {
i2c_status_t status = i2c_start(address | I2C_READ, timeout);
i2c_status_t status = i2c_start(address | I2C_ACTION_READ, timeout);
for (uint16_t i = 0; i < (length - 1) && status >= 0; i++) {
status = i2c_read_ack(timeout);