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@ -21,8 +21,10 @@ |
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#include "i2c_master.h" |
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#include "wait.h" |
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#define IS31FL3741_PWM_REGISTER_COUNT 351 |
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#define IS31FL3741_SCALING_REGISTER_COUNT 351 |
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#define IS31FL3741_PWM_0_REGISTER_COUNT 180 |
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#define IS31FL3741_PWM_1_REGISTER_COUNT 171 |
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#define IS31FL3741_SCALING_0_REGISTER_COUNT 180 |
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#define IS31FL3741_SCALING_1_REGISTER_COUNT 171 |
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#ifndef IS31FL3741_I2C_TIMEOUT |
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# define IS31FL3741_I2C_TIMEOUT 100 |
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@ -72,16 +74,20 @@ const uint8_t i2c_addresses[IS31FL3741_DRIVER_COUNT] = { |
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// buffers and the transfers in is31fl3741_write_pwm_buffer() but it's |
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// probably not worth the extra complexity. |
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typedef struct is31fl3741_driver_t { |
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uint8_t pwm_buffer[IS31FL3741_PWM_REGISTER_COUNT]; |
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uint8_t pwm_buffer_0[IS31FL3741_PWM_0_REGISTER_COUNT]; |
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uint8_t pwm_buffer_1[IS31FL3741_PWM_1_REGISTER_COUNT]; |
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bool pwm_buffer_dirty; |
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uint8_t scaling_buffer[IS31FL3741_SCALING_REGISTER_COUNT]; |
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uint8_t scaling_buffer_0[IS31FL3741_SCALING_0_REGISTER_COUNT]; |
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uint8_t scaling_buffer_1[IS31FL3741_SCALING_1_REGISTER_COUNT]; |
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bool scaling_buffer_dirty; |
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} PACKED is31fl3741_driver_t; |
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is31fl3741_driver_t driver_buffers[IS31FL3741_DRIVER_COUNT] = {{ |
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.pwm_buffer = {0}, |
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.pwm_buffer_0 = {0}, |
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.pwm_buffer_1 = {0}, |
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.pwm_buffer_dirty = false, |
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.scaling_buffer = {0}, |
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.scaling_buffer_0 = {0}, |
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.scaling_buffer_1 = {0}, |
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.scaling_buffer_dirty = false, |
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}}; |
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@ -101,30 +107,35 @@ void is31fl3741_select_page(uint8_t index, uint8_t page) { |
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} |
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void is31fl3741_write_pwm_buffer(uint8_t index) { |
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// Assume page 0 is already selected |
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is31fl3741_select_page(index, IS31FL3741_COMMAND_PWM_0); |
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for (uint16_t i = 0; i < 342; i += 18) { |
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if (i == 180) { |
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is31fl3741_select_page(index, IS31FL3741_COMMAND_PWM_1); |
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} |
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// Transmit PWM0 registers in 6 transfers of 30 bytes. |
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// Iterate over the pwm_buffer_0 contents at 30 byte intervals. |
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for (uint8_t i = 0; i < IS31FL3741_PWM_0_REGISTER_COUNT; i += 30) { |
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#if IS31FL3741_I2C_PERSISTENCE > 0 |
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for (uint8_t j = 0; j < IS31FL3741_I2C_PERSISTENCE; j++) { |
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if (i2c_write_register(i2c_addresses[index] << 1, i % 180, driver_buffers[index].pwm_buffer + i, 18, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; |
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if (i2c_write_register(i2c_addresses[index] << 1, i, driver_buffers[index].pwm_buffer_0 + i, 30, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; |
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} |
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#else |
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i2c_write_register(i2c_addresses[index] << 1, i % 180, driver_buffers[index].pwm_buffer + i, 18, IS31FL3741_I2C_TIMEOUT); |
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i2c_write_register(i2c_addresses[index] << 1, i, driver_buffers[index].pwm_buffer_0 + i, 30, IS31FL3741_I2C_TIMEOUT); |
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#endif |
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} |
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// transfer the left cause the total number is 351 |
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is31fl3741_select_page(index, IS31FL3741_COMMAND_PWM_1); |
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// Transmit PWM1 registers in 9 transfers of 19 bytes. |
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// Iterate over the pwm_buffer_1 contents at 19 byte intervals. |
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for (uint8_t i = 0; i < IS31FL3741_PWM_1_REGISTER_COUNT; i += 19) { |
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#if IS31FL3741_I2C_PERSISTENCE > 0 |
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for (uint8_t i = 0; i < IS31FL3741_I2C_PERSISTENCE; i++) { |
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if (i2c_write_register(i2c_addresses[index] << 1, 162, driver_buffers[index].pwm_buffer + 342, 9, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; |
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} |
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for (uint8_t i = 0; i < IS31FL3741_I2C_PERSISTENCE; i++) { |
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if (i2c_write_register(i2c_addresses[index] << 1, i, driver_buffers[index].pwm_buffer_1 + i, 19, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; |
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} |
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#else |
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i2c_write_register(i2c_addresses[index] << 1, 162, driver_buffers[index].pwm_buffer + 342, 9, IS31FL3741_I2C_TIMEOUT); |
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i2c_write_register(i2c_addresses[index] << 1, i, driver_buffers[index].pwm_buffer_1 + i, 19, IS31FL3741_I2C_TIMEOUT); |
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#endif |
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} |
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} |
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void is31fl3741_init_drivers(void) { |
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@ -168,20 +179,36 @@ void is31fl3741_init(uint8_t index) { |
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wait_ms(10); |
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} |
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uint8_t get_pwm_value(uint8_t driver, uint16_t reg) { |
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if (reg & 0x100) { |
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return driver_buffers[driver].pwm_buffer_1[reg & 0xFF]; |
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} else { |
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return driver_buffers[driver].pwm_buffer_0[reg]; |
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} |
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} |
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void set_pwm_value(uint8_t driver, uint16_t reg, uint8_t value) { |
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if (reg & 0x100) { |
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driver_buffers[driver].pwm_buffer_1[reg & 0xFF] = value; |
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} else { |
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driver_buffers[driver].pwm_buffer_0[reg] = value; |
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} |
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} |
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void is31fl3741_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) { |
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is31fl3741_led_t led; |
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if (index >= 0 && index < IS31FL3741_LED_COUNT) { |
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memcpy_P(&led, (&g_is31fl3741_leds[index]), sizeof(led)); |
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if (driver_buffers[led.driver].pwm_buffer[led.r] == red && driver_buffers[led.driver].pwm_buffer[led.g] == green && driver_buffers[led.driver].pwm_buffer[led.b] == blue) { |
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if (get_pwm_value(led.driver, led.r) == red && get_pwm_value(led.driver, led.g) == green && get_pwm_value(led.driver, led.b) == blue) { |
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return; |
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} |
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driver_buffers[led.driver].pwm_buffer[led.r] = red; |
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driver_buffers[led.driver].pwm_buffer[led.g] = green; |
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driver_buffers[led.driver].pwm_buffer[led.b] = blue; |
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driver_buffers[led.driver].pwm_buffer_dirty = true; |
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set_pwm_value(led.driver, led.r, red); |
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set_pwm_value(led.driver, led.g, green); |
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set_pwm_value(led.driver, led.b, blue); |
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driver_buffers[led.driver].pwm_buffer_dirty = true; |
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} |
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} |
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@ -191,35 +218,27 @@ void is31fl3741_set_color_all(uint8_t red, uint8_t green, uint8_t blue) { |
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} |
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} |
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void is31fl3741_set_led_control_register(uint8_t index, bool red, bool green, bool blue) { |
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is31fl3741_led_t led; |
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memcpy_P(&led, (&g_is31fl3741_leds[index]), sizeof(led)); |
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if (red) { |
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driver_buffers[led.driver].scaling_buffer[led.r] = 0xFF; |
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void set_scaling_value(uint8_t driver, uint16_t reg, uint8_t value) { |
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if (reg & 0x100) { |
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driver_buffers[driver].scaling_buffer_1[reg & 0xFF] = value; |
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} else { |
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driver_buffers[led.driver].scaling_buffer[led.r] = 0x00; |
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driver_buffers[driver].scaling_buffer_0[reg] = value; |
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} |
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} |
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if (green) { |
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driver_buffers[led.driver].scaling_buffer[led.g] = 0xFF; |
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} else { |
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driver_buffers[led.driver].scaling_buffer[led.g] = 0x00; |
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} |
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void is31fl3741_set_led_control_register(uint8_t index, bool red, bool green, bool blue) { |
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is31fl3741_led_t led; |
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memcpy_P(&led, (&g_is31fl3741_leds[index]), sizeof(led)); |
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if (blue) { |
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driver_buffers[led.driver].scaling_buffer[led.b] = 0xFF; |
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} else { |
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driver_buffers[led.driver].scaling_buffer[led.b] = 0x00; |
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} |
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set_scaling_value(led.driver, led.r, red ? 0xFF : 0x00); |
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set_scaling_value(led.driver, led.g, green ? 0xFF : 0x00); |
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set_scaling_value(led.driver, led.b, blue ? 0xFF : 0x00); |
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driver_buffers[led.driver].scaling_buffer_dirty = true; |
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} |
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void is31fl3741_update_pwm_buffers(uint8_t index) { |
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if (driver_buffers[index].pwm_buffer_dirty) { |
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is31fl3741_select_page(index, IS31FL3741_COMMAND_PWM_0); |
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is31fl3741_write_pwm_buffer(index); |
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driver_buffers[index].pwm_buffer_dirty = false; |
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@ -227,26 +246,24 @@ void is31fl3741_update_pwm_buffers(uint8_t index) { |
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} |
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void is31fl3741_set_pwm_buffer(const is31fl3741_led_t *pled, uint8_t red, uint8_t green, uint8_t blue) { |
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driver_buffers[pled->driver].pwm_buffer[pled->r] = red; |
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driver_buffers[pled->driver].pwm_buffer[pled->g] = green; |
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driver_buffers[pled->driver].pwm_buffer[pled->b] = blue; |
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driver_buffers[pled->driver].pwm_buffer_dirty = true; |
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set_pwm_value(pled->driver, pled->r, red); |
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set_pwm_value(pled->driver, pled->g, green); |
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set_pwm_value(pled->driver, pled->b, blue); |
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driver_buffers[pled->driver].pwm_buffer_dirty = true; |
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} |
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void is31fl3741_update_led_control_registers(uint8_t index) { |
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if (driver_buffers[index].scaling_buffer_dirty) { |
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is31fl3741_select_page(index, IS31FL3741_COMMAND_SCALING_0); |
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// CS1_SW1 to CS30_SW6 are on page 2 |
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for (int i = CS1_SW1; i <= CS30_SW6; ++i) { |
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is31fl3741_write_register(index, i, driver_buffers[index].scaling_buffer[i]); |
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for (uint8_t i = 0; i < IS31FL3741_SCALING_0_REGISTER_COUNT; i++) { |
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is31fl3741_write_register(index, i, driver_buffers[index].scaling_buffer_0[i]); |
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} |
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is31fl3741_select_page(index, IS31FL3741_COMMAND_SCALING_1); |
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// CS1_SW7 to CS39_SW9 are on page 3 |
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for (int i = CS1_SW7; i <= CS39_SW9; ++i) { |
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is31fl3741_write_register(index, i - CS1_SW7, driver_buffers[index].scaling_buffer[i]); |
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for (uint8_t i = 0; i < IS31FL3741_SCALING_1_REGISTER_COUNT; i++) { |
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is31fl3741_write_register(index, i, driver_buffers[index].scaling_buffer_1[i]); |
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} |
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driver_buffers[index].scaling_buffer_dirty = false; |
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@ -254,10 +271,10 @@ void is31fl3741_update_led_control_registers(uint8_t index) { |
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} |
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void is31fl3741_set_scaling_registers(const is31fl3741_led_t *pled, uint8_t red, uint8_t green, uint8_t blue) { |
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driver_buffers[pled->driver].scaling_buffer[pled->r] = red; |
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driver_buffers[pled->driver].scaling_buffer[pled->g] = green; |
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driver_buffers[pled->driver].scaling_buffer[pled->b] = blue; |
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driver_buffers[pled->driver].scaling_buffer_dirty = true; |
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set_scaling_value(pled->driver, pled->r, red); |
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set_scaling_value(pled->driver, pled->g, green); |
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set_scaling_value(pled->driver, pled->b, blue); |
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driver_buffers[pled->driver].scaling_buffer_dirty = true; |
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} |
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void is31fl3741_flush(void) { |
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