5ee11c2f8f
Mostly for testing purposes, but can be used later for backlight up/down stuff, too. Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
54 lines
2.0 KiB
C
54 lines
2.0 KiB
C
#include "led_driver.h"
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void LedDriver_WriteBuffer(uint8_t i2cAddress, uint8_t buffer[], uint8_t size)
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{
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i2c_master_transfer_t masterXfer;
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masterXfer.slaveAddress = i2cAddress;
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masterXfer.direction = kI2C_Write;
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masterXfer.subaddress = 0;
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masterXfer.subaddressSize = 0;
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masterXfer.data = buffer;
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masterXfer.dataSize = size;
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masterXfer.flags = kI2C_TransferDefaultFlag;
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I2C_MasterTransferBlocking(I2C_MAIN_BUS_BASEADDR, &masterXfer);
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}
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void LedDriver_WriteRegister(uint8_t i2cAddress, uint8_t reg, uint8_t val)
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{
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uint8_t buffer[] = {reg, val};
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LedDriver_WriteBuffer(i2cAddress, buffer, sizeof(buffer));
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}
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void LedDriver_InitAllLeds(char isEnabled)
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{
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CLOCK_EnableClock(LED_DRIVER_SDB_CLOCK);
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PORT_SetPinMux(LED_DRIVER_SDB_PORT, LED_DRIVER_SDB_PIN, kPORT_MuxAsGpio);
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GPIO_PinInit(GPIOA, LED_DRIVER_SDB_PIN, &(gpio_pin_config_t){kGPIO_DigitalOutput, 0});
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GPIO_WritePinOutput(LED_DRIVER_SDB_GPIO, LED_DRIVER_SDB_PIN, 1);
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LedDriver_SetAllLedsTo(isEnabled ? 0xFF : 0x00);
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}
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void LedDriver_SetAllLedsTo(uint8_t val)
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{
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uint8_t ledDriverAddresses[] = {I2C_ADDRESS_LED_DRIVER_LEFT, I2C_ADDRESS_LED_DRIVER_RIGHT};
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for (uint8_t addressId=0; addressId<sizeof(ledDriverAddresses); addressId++) {
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uint8_t address = ledDriverAddresses[addressId];
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LedDriver_WriteRegister(address, LED_DRIVER_REGISTER_FRAME, LED_DRIVER_FRAME_FUNCTION);
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LedDriver_WriteRegister(address, LED_DRIVER_REGISTER_SHUTDOWN, SHUTDOWN_MODE_NORMAL);
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LedDriver_WriteRegister(address, LED_DRIVER_REGISTER_FRAME, LED_DRIVER_FRAME_1);
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uint8_t i;
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for (i=FRAME_REGISTER_PWM_FIRST; i<=FRAME_REGISTER_PWM_LAST; i++) {
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LedDriver_WriteRegister(address, i, val);
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}
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for (i=FRAME_REGISTER_LED_CONTROL_FIRST; i<=FRAME_REGISTER_LED_CONTROL_LAST; i++) {
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LedDriver_WriteRegister(address, i, 0xff);
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}
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for (i=FRAME_REGISTER_BLINK_CONTROL_FIRST; i<=FRAME_REGISTER_BLINK_CONTROL_LAST; i++) {
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LedDriver_WriteRegister(address, i, 0x00);
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}
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}
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}
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