diff options
Diffstat (limited to 'platforms/chibios/drivers/i2c_master.c')
| -rw-r--r-- | platforms/chibios/drivers/i2c_master.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/platforms/chibios/drivers/i2c_master.c b/platforms/chibios/drivers/i2c_master.c index 981f6fa06d..312b4c7d0f 100644 --- a/platforms/chibios/drivers/i2c_master.c +++ b/platforms/chibios/drivers/i2c_master.c @@ -102,7 +102,7 @@ i2c_status_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, const uint8_t* data, i2cStart(&I2C_DRIVER, &i2cconfig); uint8_t complete_packet[length + 1]; - for (uint8_t i = 0; i < length; i++) { + for (uint16_t i = 0; i < length; i++) { complete_packet[i + 1] = data[i]; } complete_packet[0] = regaddr; @@ -111,6 +111,21 @@ i2c_status_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, const uint8_t* data, return chibios_to_qmk(&status); } +i2c_status_t i2c_writeReg16(uint8_t devaddr, uint16_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout) { + i2c_address = devaddr; + i2cStart(&I2C_DRIVER, &i2cconfig); + + uint8_t complete_packet[length + 2]; + for (uint16_t i = 0; i < length; i++) { + complete_packet[i + 2] = data[i]; + } + complete_packet[0] = regaddr >> 8; + complete_packet[1] = regaddr & 0xFF; + + msg_t status = i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), complete_packet, length + 2, 0, 0, TIME_MS2I(timeout)); + return chibios_to_qmk(&status); +} + i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout) { i2c_address = devaddr; i2cStart(&I2C_DRIVER, &i2cconfig); @@ -118,4 +133,12 @@ i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16 return chibios_to_qmk(&status); } +i2c_status_t i2c_readReg16(uint8_t devaddr, uint16_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout) { + i2c_address = devaddr; + i2cStart(&I2C_DRIVER, &i2cconfig); + uint8_t register_packet[2] = {regaddr >> 8, regaddr & 0xFF}; + msg_t status = i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), ®ister_packet, 2, data, length, TIME_MS2I(timeout)); + return chibios_to_qmk(&status); +} + void i2c_stop(void) { i2cStop(&I2C_DRIVER); } |