From a5ea619139cb08f49cbfa440984ee2604f7104ba Mon Sep 17 00:00:00 2001 From: Ryan Date: Fri, 9 Feb 2024 22:37:18 +1100 Subject: LED drivers: place I2C addresses into an array (#22975) --- drivers/led/issi/is31fl3736.c | 102 +++++++++++++++++++----------------------- 1 file changed, 47 insertions(+), 55 deletions(-) (limited to 'drivers/led/issi/is31fl3736.c') diff --git a/drivers/led/issi/is31fl3736.c b/drivers/led/issi/is31fl3736.c index e4cba2c398..b546589693 100644 --- a/drivers/led/issi/is31fl3736.c +++ b/drivers/led/issi/is31fl3736.c @@ -46,6 +46,19 @@ # define IS31FL3736_GLOBAL_CURRENT 0xFF #endif +const uint8_t i2c_addresses[IS31FL3736_DRIVER_COUNT] = { + IS31FL3736_I2C_ADDRESS_1, +#ifdef IS31FL3736_I2C_ADDRESS_2 + IS31FL3736_I2C_ADDRESS_2, +# ifdef IS31FL3736_I2C_ADDRESS_3 + IS31FL3736_I2C_ADDRESS_3, +# ifdef IS31FL3736_I2C_ADDRESS_4 + IS31FL3736_I2C_ADDRESS_4, +# endif +# endif +#endif +}; + // These buffers match the IS31FL3736 PWM registers. // The control buffers match the page 0 LED On/Off registers. // Storing them like this is optimal for I2C transfers to the registers. @@ -58,22 +71,22 @@ bool g_pwm_buffer_update_required[IS31FL3736_DRIVER_COUNT] = {false}; uint8_t g_led_control_registers[IS31FL3736_DRIVER_COUNT][IS31FL3736_LED_CONTROL_REGISTER_COUNT] = {0}; bool g_led_control_registers_update_required[IS31FL3736_DRIVER_COUNT] = {false}; -void is31fl3736_write_register(uint8_t addr, uint8_t reg, uint8_t data) { +void is31fl3736_write_register(uint8_t index, uint8_t reg, uint8_t data) { #if IS31FL3736_I2C_PERSISTENCE > 0 for (uint8_t i = 0; i < IS31FL3736_I2C_PERSISTENCE; i++) { - if (i2c_write_register(addr << 1, reg, &data, 1, IS31FL3736_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; + if (i2c_write_register(i2c_addresses[index] << 1, reg, &data, 1, IS31FL3736_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; } #else - i2c_write_register(addr << 1, reg, &data, 1, IS31FL3736_I2C_TIMEOUT); + i2c_write_register(i2c_addresses[index] << 1, reg, &data, 1, IS31FL3736_I2C_TIMEOUT); #endif } -void is31fl3736_select_page(uint8_t addr, uint8_t page) { - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC); - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, page); +void is31fl3736_select_page(uint8_t index, uint8_t page) { + is31fl3736_write_register(index, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC); + is31fl3736_write_register(index, IS31FL3736_REG_COMMAND, page); } -void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t index) { +void is31fl3736_write_pwm_buffer(uint8_t index) { // Assumes page 1 is already selected. // Transmit PWM registers in 12 transfers of 16 bytes. @@ -81,10 +94,10 @@ void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t index) { for (uint8_t i = 0; i < IS31FL3736_PWM_REGISTER_COUNT; i += 16) { #if IS31FL3736_I2C_PERSISTENCE > 0 for (uint8_t j = 0; j < IS31FL3736_I2C_PERSISTENCE; j++) { - if (i2c_write_register(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3736_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; + if (i2c_write_register(i2c_addresses[index] << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3736_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; } #else - i2c_write_register(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3736_I2C_TIMEOUT); + i2c_write_register(i2c_addresses[index] << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3736_I2C_TIMEOUT); #endif } } @@ -92,64 +105,50 @@ void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t index) { void is31fl3736_init_drivers(void) { i2c_init(); - is31fl3736_init(IS31FL3736_I2C_ADDRESS_1); -#if defined(IS31FL3736_I2C_ADDRESS_2) - is31fl3736_init(IS31FL3736_I2C_ADDRESS_2); -# if defined(IS31FL3736_I2C_ADDRESS_3) - is31fl3736_init(IS31FL3736_I2C_ADDRESS_3); -# if defined(IS31FL3736_I2C_ADDRESS_4) - is31fl3736_init(IS31FL3736_I2C_ADDRESS_4); -# endif -# endif -#endif + for (uint8_t i = 0; i < IS31FL3736_DRIVER_COUNT; i++) { + is31fl3736_init(i); + } for (int i = 0; i < IS31FL3736_LED_COUNT; i++) { is31fl3736_set_led_control_register(i, true, true, true); } - is31fl3736_update_led_control_registers(IS31FL3736_I2C_ADDRESS_1, 0); -#if defined(IS31FL3736_I2C_ADDRESS_2) - is31fl3736_update_led_control_registers(IS31FL3736_I2C_ADDRESS_2, 1); -# if defined(IS31FL3736_I2C_ADDRESS_3) - is31fl3736_update_led_control_registers(IS31FL3736_I2C_ADDRESS_3, 2); -# if defined(IS31FL3736_I2C_ADDRESS_4) - is31fl3736_update_led_control_registers(IS31FL3736_I2C_ADDRESS_4, 3); -# endif -# endif -#endif + for (uint8_t i = 0; i < IS31FL3736_DRIVER_COUNT; i++) { + is31fl3736_update_led_control_registers(i); + } } -void is31fl3736_init(uint8_t addr) { +void is31fl3736_init(uint8_t index) { // In order to avoid the LEDs being driven with garbage data // in the LED driver's PWM registers, shutdown is enabled last. // Set up the mode and other settings, clear the PWM registers, // then disable software shutdown. - is31fl3736_select_page(addr, IS31FL3736_COMMAND_LED_CONTROL); + is31fl3736_select_page(index, IS31FL3736_COMMAND_LED_CONTROL); // Turn off all LEDs. for (uint8_t i = 0; i < IS31FL3736_LED_CONTROL_REGISTER_COUNT; i++) { - is31fl3736_write_register(addr, i, 0x00); + is31fl3736_write_register(index, i, 0x00); } - is31fl3736_select_page(addr, IS31FL3736_COMMAND_PWM); + is31fl3736_select_page(index, IS31FL3736_COMMAND_PWM); // Set PWM on all LEDs to 0 // No need to setup Breath registers to PWM as that is the default. for (uint8_t i = 0; i < IS31FL3736_PWM_REGISTER_COUNT; i++) { - is31fl3736_write_register(addr, i, 0x00); + is31fl3736_write_register(index, i, 0x00); } - is31fl3736_select_page(addr, IS31FL3736_COMMAND_FUNCTION); + is31fl3736_select_page(index, IS31FL3736_COMMAND_FUNCTION); // Set de-ghost pull-up resistors (SWx) - is31fl3736_write_register(addr, IS31FL3736_FUNCTION_REG_SW_PULLUP, IS31FL3736_SW_PULLUP); + is31fl3736_write_register(index, IS31FL3736_FUNCTION_REG_SW_PULLUP, IS31FL3736_SW_PULLUP); // Set de-ghost pull-down resistors (CSx) - is31fl3736_write_register(addr, IS31FL3736_FUNCTION_REG_CS_PULLDOWN, IS31FL3736_CS_PULLDOWN); + is31fl3736_write_register(index, IS31FL3736_FUNCTION_REG_CS_PULLDOWN, IS31FL3736_CS_PULLDOWN); // Set global current to maximum. - is31fl3736_write_register(addr, IS31FL3736_FUNCTION_REG_GLOBAL_CURRENT, IS31FL3736_GLOBAL_CURRENT); + is31fl3736_write_register(index, IS31FL3736_FUNCTION_REG_GLOBAL_CURRENT, IS31FL3736_GLOBAL_CURRENT); // Disable software shutdown. - is31fl3736_write_register(addr, IS31FL3736_FUNCTION_REG_CONFIGURATION, ((IS31FL3736_PWM_FREQUENCY & 0b111) << 3) | 0x01); + is31fl3736_write_register(index, IS31FL3736_FUNCTION_REG_CONFIGURATION, ((IS31FL3736_PWM_FREQUENCY & 0b111) << 3) | 0x01); // Wait 10ms to ensure the device has woken up. wait_ms(10); @@ -215,22 +214,22 @@ void is31fl3736_set_led_control_register(uint8_t index, bool red, bool green, bo g_led_control_registers_update_required[led.driver] = true; } -void is31fl3736_update_pwm_buffers(uint8_t addr, uint8_t index) { +void is31fl3736_update_pwm_buffers(uint8_t index) { if (g_pwm_buffer_update_required[index]) { - is31fl3736_select_page(addr, IS31FL3736_COMMAND_PWM); + is31fl3736_select_page(index, IS31FL3736_COMMAND_PWM); - is31fl3736_write_pwm_buffer(addr, index); + is31fl3736_write_pwm_buffer(index); g_pwm_buffer_update_required[index] = false; } } -void is31fl3736_update_led_control_registers(uint8_t addr, uint8_t index) { +void is31fl3736_update_led_control_registers(uint8_t index) { if (g_led_control_registers_update_required[index]) { - is31fl3736_select_page(addr, IS31FL3736_COMMAND_LED_CONTROL); + is31fl3736_select_page(index, IS31FL3736_COMMAND_LED_CONTROL); for (uint8_t i = 0; i < IS31FL3736_LED_CONTROL_REGISTER_COUNT; i++) { - is31fl3736_write_register(addr, i, g_led_control_registers[index][i]); + is31fl3736_write_register(index, i, g_led_control_registers[index][i]); } g_led_control_registers_update_required[index] = false; @@ -238,14 +237,7 @@ void is31fl3736_update_led_control_registers(uint8_t addr, uint8_t index) { } void is31fl3736_flush(void) { - is31fl3736_update_pwm_buffers(IS31FL3736_I2C_ADDRESS_1, 0); -#if defined(IS31FL3736_I2C_ADDRESS_2) - is31fl3736_update_pwm_buffers(IS31FL3736_I2C_ADDRESS_2, 1); -# if defined(IS31FL3736_I2C_ADDRESS_3) - is31fl3736_update_pwm_buffers(IS31FL3736_I2C_ADDRESS_3, 2); -# if defined(IS31FL3736_I2C_ADDRESS_4) - is31fl3736_update_pwm_buffers(IS31FL3736_I2C_ADDRESS_4, 3); -# endif -# endif -#endif + for (uint8_t i = 0; i < IS31FL3736_DRIVER_COUNT; i++) { + is31fl3736_update_pwm_buffers(i); + } } -- cgit v1.2.3