LED drivers: place I2C addresses into an array (#22975)
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54 changed files with 1292 additions and 1349 deletions
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@ -37,6 +37,19 @@
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{ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }
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#endif
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const uint8_t i2c_addresses[SNLED27351_DRIVER_COUNT] = {
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SNLED27351_I2C_ADDRESS_1,
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#ifdef SNLED27351_I2C_ADDRESS_2
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SNLED27351_I2C_ADDRESS_2,
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# ifdef SNLED27351_I2C_ADDRESS_3
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SNLED27351_I2C_ADDRESS_3,
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# ifdef SNLED27351_I2C_ADDRESS_4
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SNLED27351_I2C_ADDRESS_4,
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# endif
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# endif
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#endif
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};
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// These buffers match the SNLED27351 PWM registers.
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// The control buffers match the PG0 LED On/Off registers.
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// Storing them like this is optimal for I2C transfers to the registers.
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@ -49,21 +62,21 @@ bool g_pwm_buffer_update_required[SNLED27351_DRIVER_COUNT] = {false};
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uint8_t g_led_control_registers[SNLED27351_DRIVER_COUNT][SNLED27351_LED_CONTROL_REGISTER_COUNT] = {0};
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bool g_led_control_registers_update_required[SNLED27351_DRIVER_COUNT] = {false};
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void snled27351_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
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void snled27351_write_register(uint8_t index, uint8_t reg, uint8_t data) {
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#if SNLED27351_I2C_PERSISTENCE > 0
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for (uint8_t i = 0; i < SNLED27351_I2C_PERSISTENCE; i++) {
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if (i2c_write_register(addr << 1, reg, &data, 1, SNLED27351_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
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if (i2c_write_register(i2c_addresses[index] << 1, reg, &data, 1, SNLED27351_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
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}
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#else
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i2c_write_register(addr << 1, reg, &data, 1, SNLED27351_I2C_TIMEOUT);
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i2c_write_register(i2c_addresses[index] << 1, reg, &data, 1, SNLED27351_I2C_TIMEOUT);
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#endif
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}
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void snled27351_select_page(uint8_t addr, uint8_t page) {
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snled27351_write_register(addr, SNLED27351_REG_COMMAND, page);
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void snled27351_select_page(uint8_t index, uint8_t page) {
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snled27351_write_register(index, SNLED27351_REG_COMMAND, page);
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}
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void snled27351_write_pwm_buffer(uint8_t addr, uint8_t index) {
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void snled27351_write_pwm_buffer(uint8_t index) {
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// Assumes PG1 is already selected.
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// Transmit PWM registers in 12 transfers of 16 bytes.
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@ -71,10 +84,10 @@ void snled27351_write_pwm_buffer(uint8_t addr, uint8_t index) {
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for (uint8_t i = 0; i < SNLED27351_PWM_REGISTER_COUNT; i += 16) {
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#if SNLED27351_I2C_PERSISTENCE > 0
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for (uint8_t j = 0; j < SNLED27351_I2C_PERSISTENCE; j++) {
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if (i2c_write_register(addr << 1, i, g_pwm_buffer[index] + i, 16, SNLED27351_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
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if (i2c_write_register(i2c_addresses[index] << 1, i, g_pwm_buffer[index] + i, 16, SNLED27351_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
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}
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#else
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i2c_write_register(addr << 1, i, g_pwm_buffer[index] + i, 16, SNLED27351_I2C_TIMEOUT);
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i2c_write_register(i2c_addresses[index] << 1, i, g_pwm_buffer[index] + i, 16, SNLED27351_I2C_TIMEOUT);
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#endif
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}
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}
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@ -82,78 +95,64 @@ void snled27351_write_pwm_buffer(uint8_t addr, uint8_t index) {
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void snled27351_init_drivers(void) {
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i2c_init();
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snled27351_init(SNLED27351_I2C_ADDRESS_1);
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#if defined(SNLED27351_I2C_ADDRESS_2)
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snled27351_init(SNLED27351_I2C_ADDRESS_2);
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# if defined(SNLED27351_I2C_ADDRESS_3)
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snled27351_init(SNLED27351_I2C_ADDRESS_3);
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# if defined(SNLED27351_I2C_ADDRESS_4)
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snled27351_init(SNLED27351_I2C_ADDRESS_4);
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# endif
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# endif
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#endif
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for (uint8_t i = 0; i < SNLED27351_DRIVER_COUNT; i++) {
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snled27351_init(i);
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}
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for (int i = 0; i < SNLED27351_LED_COUNT; i++) {
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snled27351_set_led_control_register(i, true);
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}
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snled27351_update_led_control_registers(SNLED27351_I2C_ADDRESS_1, 0);
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#if defined(SNLED27351_I2C_ADDRESS_2)
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snled27351_update_led_control_registers(SNLED27351_I2C_ADDRESS_2, 1);
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# if defined(SNLED27351_I2C_ADDRESS_3)
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snled27351_update_led_control_registers(SNLED27351_I2C_ADDRESS_3, 2);
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# if defined(SNLED27351_I2C_ADDRESS_4)
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snled27351_update_led_control_registers(SNLED27351_I2C_ADDRESS_4, 3);
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# endif
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# endif
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#endif
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for (uint8_t i = 0; i < SNLED27351_DRIVER_COUNT; i++) {
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snled27351_update_led_control_registers(i);
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}
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}
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void snled27351_init(uint8_t addr) {
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snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
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void snled27351_init(uint8_t index) {
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snled27351_select_page(index, SNLED27351_COMMAND_FUNCTION);
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// Setting LED driver to shutdown mode
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_SHUTDOWN);
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snled27351_write_register(index, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_SHUTDOWN);
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// Setting internal channel pulldown/pullup
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_PULLDOWNUP, SNLED27351_PULLDOWNUP_ALL_ENABLED);
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snled27351_write_register(index, SNLED27351_FUNCTION_REG_PULLDOWNUP, SNLED27351_PULLDOWNUP_ALL_ENABLED);
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// Select number of scan phase
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SCAN_PHASE, SNLED27351_PHASE_CHANNEL);
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snled27351_write_register(index, SNLED27351_FUNCTION_REG_SCAN_PHASE, SNLED27351_PHASE_CHANNEL);
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// Setting PWM Delay Phase
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SLEW_RATE_CONTROL_MODE_1, SNLED27351_SLEW_RATE_CONTROL_MODE_1_PDP_ENABLE);
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snled27351_write_register(index, SNLED27351_FUNCTION_REG_SLEW_RATE_CONTROL_MODE_1, SNLED27351_SLEW_RATE_CONTROL_MODE_1_PDP_ENABLE);
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// Setting Driving/Sinking Channel Slew Rate
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SLEW_RATE_CONTROL_MODE_2, SNLED27351_SLEW_RATE_CONTROL_MODE_2_DSL_ENABLE | SNLED27351_SLEW_RATE_CONTROL_MODE_2_SSL_ENABLE);
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snled27351_write_register(index, SNLED27351_FUNCTION_REG_SLEW_RATE_CONTROL_MODE_2, SNLED27351_SLEW_RATE_CONTROL_MODE_2_DSL_ENABLE | SNLED27351_SLEW_RATE_CONTROL_MODE_2_SSL_ENABLE);
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// Setting Iref
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SLEEP, 0);
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snled27351_write_register(index, SNLED27351_FUNCTION_REG_SOFTWARE_SLEEP, 0);
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snled27351_select_page(addr, SNLED27351_COMMAND_LED_CONTROL);
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snled27351_select_page(index, SNLED27351_COMMAND_LED_CONTROL);
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for (int i = 0; i < SNLED27351_LED_CONTROL_ON_OFF_LENGTH; i++) {
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snled27351_write_register(addr, i, 0x00);
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snled27351_write_register(index, i, 0x00);
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}
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snled27351_select_page(addr, SNLED27351_COMMAND_PWM);
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snled27351_select_page(index, SNLED27351_COMMAND_PWM);
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for (int i = 0; i < SNLED27351_LED_CURRENT_TUNE_LENGTH; i++) {
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snled27351_write_register(addr, i, 0x00);
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snled27351_write_register(index, i, 0x00);
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}
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snled27351_select_page(addr, SNLED27351_COMMAND_CURRENT_TUNE);
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snled27351_select_page(index, SNLED27351_COMMAND_CURRENT_TUNE);
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uint8_t current_tune_reg_list[SNLED27351_LED_CURRENT_TUNE_LENGTH] = SNLED27351_CURRENT_TUNE;
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for (int i = 0; i < SNLED27351_LED_CURRENT_TUNE_LENGTH; i++) {
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snled27351_write_register(addr, i, current_tune_reg_list[i]);
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snled27351_write_register(index, i, current_tune_reg_list[i]);
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}
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snled27351_select_page(addr, SNLED27351_COMMAND_LED_CONTROL);
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snled27351_select_page(index, SNLED27351_COMMAND_LED_CONTROL);
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for (int i = 0; i < SNLED27351_LED_CONTROL_ON_OFF_LENGTH; i++) {
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snled27351_write_register(addr, i, 0xFF);
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snled27351_write_register(index, i, 0xFF);
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}
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snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
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snled27351_select_page(index, SNLED27351_COMMAND_FUNCTION);
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// Setting LED driver to normal mode
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_NORMAL);
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snled27351_write_register(index, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_NORMAL);
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}
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void snled27351_set_value(int index, uint8_t value) {
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@ -192,22 +191,22 @@ void snled27351_set_led_control_register(uint8_t index, bool value) {
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g_led_control_registers_update_required[led.driver] = true;
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}
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void snled27351_update_pwm_buffers(uint8_t addr, uint8_t index) {
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void snled27351_update_pwm_buffers(uint8_t index) {
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if (g_pwm_buffer_update_required[index]) {
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snled27351_select_page(addr, SNLED27351_COMMAND_PWM);
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snled27351_select_page(index, SNLED27351_COMMAND_PWM);
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snled27351_write_pwm_buffer(addr, index);
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snled27351_write_pwm_buffer(index);
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g_pwm_buffer_update_required[index] = false;
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}
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}
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void snled27351_update_led_control_registers(uint8_t addr, uint8_t index) {
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void snled27351_update_led_control_registers(uint8_t index) {
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if (g_led_control_registers_update_required[index]) {
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snled27351_select_page(addr, SNLED27351_COMMAND_LED_CONTROL);
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snled27351_select_page(index, SNLED27351_COMMAND_LED_CONTROL);
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for (uint8_t i = 0; i < SNLED27351_LED_CONTROL_REGISTER_COUNT; i++) {
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snled27351_write_register(addr, i, g_led_control_registers[index][i]);
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snled27351_write_register(index, i, g_led_control_registers[index][i]);
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}
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g_led_control_registers_update_required[index] = false;
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@ -215,30 +214,23 @@ void snled27351_update_led_control_registers(uint8_t addr, uint8_t index) {
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}
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void snled27351_flush(void) {
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snled27351_update_pwm_buffers(SNLED27351_I2C_ADDRESS_1, 0);
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#if defined(SNLED27351_I2C_ADDRESS_2)
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snled27351_update_pwm_buffers(SNLED27351_I2C_ADDRESS_2, 1);
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# if defined(SNLED27351_I2C_ADDRESS_3)
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snled27351_update_pwm_buffers(SNLED27351_I2C_ADDRESS_3, 2);
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# if defined(SNLED27351_I2C_ADDRESS_4)
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snled27351_update_pwm_buffers(SNLED27351_I2C_ADDRESS_4, 3);
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# endif
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# endif
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#endif
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for (uint8_t i = 0; i < SNLED27351_DRIVER_COUNT; i++) {
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snled27351_update_pwm_buffers(i);
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}
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}
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void snled27351_sw_return_normal(uint8_t addr) {
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snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
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void snled27351_sw_return_normal(uint8_t index) {
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snled27351_select_page(index, SNLED27351_COMMAND_FUNCTION);
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// Setting LED driver to normal mode
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_NORMAL);
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snled27351_write_register(index, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_NORMAL);
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}
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void snled27351_sw_shutdown(uint8_t addr) {
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snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
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void snled27351_sw_shutdown(uint8_t index) {
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snled27351_select_page(index, SNLED27351_COMMAND_FUNCTION);
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// Setting LED driver to shutdown mode
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_SHUTDOWN);
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snled27351_write_register(index, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_SHUTDOWN);
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// Write SW Sleep Register
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SLEEP, SNLED27351_SOFTWARE_SLEEP_ENABLE);
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snled27351_write_register(index, SNLED27351_FUNCTION_REG_SOFTWARE_SLEEP, SNLED27351_SOFTWARE_SLEEP_ENABLE);
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}
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