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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, true, 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_color(int index, uint8_t red, uint8_t green, uint8_t blue) { |
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@ -208,22 +207,22 @@ void snled27351_set_led_control_register(uint8_t index, bool red, bool green, bo |
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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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@ -231,30 +230,23 @@ 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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} |