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@ -71,6 +71,10 @@ bool snled27351_write_register(uint8_t addr, uint8_t reg, uint8_t data) { |
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return true; |
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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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} |
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bool snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) { |
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// Assumes PG1 is already selected. |
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// If any of the transactions fails function returns false. |
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@ -132,8 +136,8 @@ void snled27351_init_drivers(void) { |
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} |
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void snled27351_init(uint8_t addr) { |
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// Select to function page |
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snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION); |
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snled27351_select_page(addr, 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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// Setting internal channel pulldown/pullup |
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@ -146,33 +150,34 @@ void snled27351_init(uint8_t addr) { |
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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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// Setting Iref |
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snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SLEEP, 0); |
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// Set LED CONTROL PAGE (Page 0) |
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snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_LED_CONTROL); |
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snled27351_select_page(addr, 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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} |
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// Set PWM PAGE (Page 1) |
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snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_PWM); |
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snled27351_select_page(addr, 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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} |
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// Set CURRENT PAGE (Page 4) |
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snled27351_select_page(addr, 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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snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_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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} |
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// Enable LEDs ON/OFF |
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snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_LED_CONTROL); |
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snled27351_select_page(addr, 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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} |
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// Select to function page |
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snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION); |
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snled27351_select_page(addr, 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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} |
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@ -230,7 +235,7 @@ void snled27351_set_led_control_register(uint8_t index, bool red, bool green, bo |
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void snled27351_update_pwm_buffers(uint8_t addr, uint8_t index) { |
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if (g_pwm_buffer_update_required[index]) { |
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snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_PWM); |
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snled27351_select_page(addr, SNLED27351_COMMAND_PWM); |
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// If any of the transactions fail we risk writing dirty PG0, |
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// refresh page 0 just in case. |
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@ -243,7 +248,8 @@ void snled27351_update_pwm_buffers(uint8_t addr, uint8_t index) { |
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void snled27351_update_led_control_registers(uint8_t addr, uint8_t index) { |
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if (g_led_control_registers_update_required[index]) { |
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snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_LED_CONTROL); |
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snled27351_select_page(addr, SNLED27351_COMMAND_LED_CONTROL); |
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for (int 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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} |
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@ -265,15 +271,15 @@ void snled27351_flush(void) { |
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} |
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void snled27351_sw_return_normal(uint8_t addr) { |
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// Select to function page |
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snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION); |
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snled27351_select_page(addr, 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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} |
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void snled27351_sw_shutdown(uint8_t addr) { |
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// Select to function page |
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snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION); |
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snled27351_select_page(addr, 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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// Write SW Sleep Register |
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