From 66015f164507022e376a15b45f41b58c0fb5ee97 Mon Sep 17 00:00:00 2001 From: Ryan Date: Sat, 10 Feb 2024 18:48:13 +1100 Subject: LED drivers: create structs to hold PWM/scaling buffers (#22955) --- drivers/led/issi/is31fl3218.c | 56 ++++++++++++++++++++++++------------------- 1 file changed, 32 insertions(+), 24 deletions(-) (limited to 'drivers/led/issi/is31fl3218.c') diff --git a/drivers/led/issi/is31fl3218.c b/drivers/led/issi/is31fl3218.c index 5099480023..c591e22a51 100644 --- a/drivers/led/issi/is31fl3218.c +++ b/drivers/led/issi/is31fl3218.c @@ -28,12 +28,20 @@ # define IS31FL3218_I2C_PERSISTENCE 0 #endif -// IS31FL3218 has 18 PWM outputs and a fixed I2C address, so no chaining. -uint8_t g_pwm_buffer[IS31FL3218_PWM_REGISTER_COUNT]; -bool g_pwm_buffer_update_required = false; +typedef struct is31fl3218_driver_t { + uint8_t pwm_buffer[IS31FL3218_PWM_REGISTER_COUNT]; + bool pwm_buffer_dirty; + uint8_t led_control_buffer[IS31FL3218_LED_CONTROL_REGISTER_COUNT]; + bool led_control_buffer_dirty; +} PACKED is31fl3218_driver_t; -uint8_t g_led_control_registers[IS31FL3218_LED_CONTROL_REGISTER_COUNT] = {0}; -bool g_led_control_registers_update_required = false; +// IS31FL3218 has 18 PWM outputs and a fixed I2C address, so no chaining. +is31fl3218_driver_t driver_buffers = { + .pwm_buffer = {0}, + .pwm_buffer_dirty = false, + .led_control_buffer = {0}, + .led_control_buffer_dirty = false, +}; void is31fl3218_write_register(uint8_t reg, uint8_t data) { #if IS31FL3218_I2C_PERSISTENCE > 0 @@ -48,10 +56,10 @@ void is31fl3218_write_register(uint8_t reg, uint8_t data) { void is31fl3218_write_pwm_buffer(void) { #if IS31FL3218_I2C_PERSISTENCE > 0 for (uint8_t i = 0; i < IS31FL3218_I2C_PERSISTENCE; i++) { - if (i2c_write_register(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, g_pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; + if (i2c_write_register(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, driver_buffers.pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; } #else - i2c_write_register(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, g_pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT); + i2c_write_register(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, driver_buffers.pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT); #endif } @@ -90,14 +98,14 @@ void is31fl3218_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) { if (index >= 0 && index < IS31FL3218_LED_COUNT) { memcpy_P(&led, (&g_is31fl3218_leds[index]), sizeof(led)); - if (g_pwm_buffer[led.r] == red && g_pwm_buffer[led.g] == green && g_pwm_buffer[led.b] == blue) { + if (driver_buffers.pwm_buffer[led.r] == red && driver_buffers.pwm_buffer[led.g] == green && driver_buffers.pwm_buffer[led.b] == blue) { return; } - g_pwm_buffer[led.r] = red; - g_pwm_buffer[led.g] = green; - g_pwm_buffer[led.b] = blue; - g_pwm_buffer_update_required = true; + driver_buffers.pwm_buffer[led.r] = red; + driver_buffers.pwm_buffer[led.g] = green; + driver_buffers.pwm_buffer[led.b] = blue; + driver_buffers.pwm_buffer_dirty = true; } } @@ -119,40 +127,40 @@ void is31fl3218_set_led_control_register(uint8_t index, bool red, bool green, bo uint8_t bit_b = led.b % 6; if (red) { - g_led_control_registers[control_register_r] |= (1 << bit_r); + driver_buffers.led_control_buffer[control_register_r] |= (1 << bit_r); } else { - g_led_control_registers[control_register_r] &= ~(1 << bit_r); + driver_buffers.led_control_buffer[control_register_r] &= ~(1 << bit_r); } if (green) { - g_led_control_registers[control_register_g] |= (1 << bit_g); + driver_buffers.led_control_buffer[control_register_g] |= (1 << bit_g); } else { - g_led_control_registers[control_register_g] &= ~(1 << bit_g); + driver_buffers.led_control_buffer[control_register_g] &= ~(1 << bit_g); } if (blue) { - g_led_control_registers[control_register_b] |= (1 << bit_b); + driver_buffers.led_control_buffer[control_register_b] |= (1 << bit_b); } else { - g_led_control_registers[control_register_b] &= ~(1 << bit_b); + driver_buffers.led_control_buffer[control_register_b] &= ~(1 << bit_b); } - g_led_control_registers_update_required = true; + driver_buffers.led_control_buffer_dirty = true; } void is31fl3218_update_pwm_buffers(void) { - if (g_pwm_buffer_update_required) { + if (driver_buffers.pwm_buffer_dirty) { is31fl3218_write_pwm_buffer(); // Load PWM registers and LED Control register data is31fl3218_write_register(IS31FL3218_REG_UPDATE, 0x01); - g_pwm_buffer_update_required = false; + driver_buffers.pwm_buffer_dirty = false; } } void is31fl3218_update_led_control_registers(void) { - if (g_led_control_registers_update_required) { + if (driver_buffers.led_control_buffer_dirty) { for (uint8_t i = 0; i < IS31FL3218_LED_CONTROL_REGISTER_COUNT; i++) { - is31fl3218_write_register(IS31FL3218_REG_LED_CONTROL_1 + i, g_led_control_registers[i]); + is31fl3218_write_register(IS31FL3218_REG_LED_CONTROL_1 + i, driver_buffers.led_control_buffer[i]); } - g_led_control_registers_update_required = false; + driver_buffers.led_control_buffer_dirty = false; } } -- cgit v1.2.3