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172 lines
5.8 KiB
172 lines
5.8 KiB
// Copyright 2024 QMK
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "is31fl3236.h"
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#include "i2c_master.h"
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#include "gpio.h"
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#define IS31FL3236_PWM_REGISTER_COUNT 36
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#define IS31FL3236_LED_CONTROL_REGISTER_COUNT 36
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#ifndef IS31FL3236_I2C_TIMEOUT
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# define IS31FL3236_I2C_TIMEOUT 100
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#endif
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#ifndef IS31FL3236_I2C_PERSISTENCE
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# define IS31FL3236_I2C_PERSISTENCE 0
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#endif
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#ifndef IS31FL3236_PWM_FREQUENCY
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# define IS31FL3236_PWM_FREQUENCY IS31FL3236_PWM_FREQUENCY_3K_HZ // OFS - IS31FL3236A only
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#endif
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const uint8_t i2c_addresses[IS31FL3236_DRIVER_COUNT] = {
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IS31FL3236_I2C_ADDRESS_1,
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#ifdef IS31FL3236_I2C_ADDRESS_2
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IS31FL3236_I2C_ADDRESS_2,
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# ifdef IS31FL3236_I2C_ADDRESS_3
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IS31FL3236_I2C_ADDRESS_3,
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# ifdef IS31FL3236_I2C_ADDRESS_4
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IS31FL3236_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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typedef struct is31fl3236_driver_t {
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uint8_t pwm_buffer[IS31FL3236_PWM_REGISTER_COUNT];
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bool pwm_buffer_dirty;
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uint8_t led_control_buffer[IS31FL3236_LED_CONTROL_REGISTER_COUNT];
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bool led_control_buffer_dirty;
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} PACKED is31fl3236_driver_t;
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is31fl3236_driver_t driver_buffers[IS31FL3236_DRIVER_COUNT] = {{
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.pwm_buffer = {0},
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.pwm_buffer_dirty = false,
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.led_control_buffer = {0},
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.led_control_buffer_dirty = false,
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}};
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void is31fl3236_write_register(uint8_t index, uint8_t reg, uint8_t data) {
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#if IS31FL3236_I2C_PERSISTENCE > 0
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for (uint8_t i = 0; i < IS31FL3236_I2C_PERSISTENCE; i++) {
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if (i2c_write_register(i2c_addresses[index] << 1, reg, &data, 1, IS31FL3236_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, reg, &data, 1, IS31FL3236_I2C_TIMEOUT);
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#endif
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}
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void is31fl3236_write_pwm_buffer(uint8_t index) {
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#if IS31FL3236_I2C_PERSISTENCE > 0
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for (uint8_t i = 0; i < IS31FL3236_I2C_PERSISTENCE; i++) {
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if (i2c_write_register(i2c_addresses[index] << 1, IS31FL3236_REG_PWM, driver_buffers[index].pwm_buffer, 36, IS31FL3236_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, IS31FL3236_REG_PWM, driver_buffers[index].pwm_buffer, 36, IS31FL3236_I2C_TIMEOUT);
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#endif
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}
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void is31fl3236_init_drivers(void) {
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i2c_init();
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#if defined(IS31FL3236_SDB_PIN)
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gpio_set_pin_output(IS31FL3236_SDB_PIN);
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gpio_write_pin_high(IS31FL3236_SDB_PIN);
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#endif
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for (uint8_t i = 0; i < IS31FL3236_DRIVER_COUNT; i++) {
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is31fl3236_init(i);
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}
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for (uint8_t i = 0; i < IS31FL3236_LED_COUNT; i++) {
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is31fl3236_set_led_control_register(i, true, true, true);
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}
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for (uint8_t i = 0; i < IS31FL3236_DRIVER_COUNT; i++) {
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is31fl3236_update_led_control_registers(i);
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}
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}
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void is31fl3236_init(uint8_t index) {
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// In case we ever want to reinitialize (?)
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is31fl3236_write_register(index, IS31FL3236_REG_RESET, 0x00);
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// Turn off software shutdown
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is31fl3236_write_register(index, IS31FL3236_REG_SHUTDOWN, 0x01);
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// Set all PWM values to zero
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for (uint8_t i = 0; i < IS31FL3236_PWM_REGISTER_COUNT; i++) {
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is31fl3236_write_register(index, IS31FL3236_REG_PWM + i, 0x00);
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}
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// turn off all LEDs in the LED control register
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for (uint8_t i = 0; i < IS31FL3236_LED_CONTROL_REGISTER_COUNT; i++) {
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is31fl3236_write_register(index, IS31FL3236_REG_LED_CONTROL + i, 0x00);
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}
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// Set PWM frequency (IS31FL3236A)
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is31fl3236_write_register(index, IS31FL3236_REG_PWM_FREQUENCY, IS31FL3236_PWM_FREQUENCY);
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// Load PWM registers and LED Control register data
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is31fl3236_write_register(index, IS31FL3236_REG_UPDATE, 0x01);
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}
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void is31fl3236_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
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is31fl3236_led_t led;
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if (index < IS31FL3236_LED_COUNT) {
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memcpy_P(&led, (&g_is31fl3236_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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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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}
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}
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void is31fl3236_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
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for (uint8_t i = 0; i < IS31FL3236_LED_COUNT; i++) {
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is31fl3236_set_color(i, red, green, blue);
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}
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}
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void is31fl3236_set_led_control_register(uint8_t index, bool red, bool green, bool blue) {
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is31fl3236_led_t led;
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memcpy_P(&led, (&g_is31fl3236_leds[index]), sizeof(led));
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driver_buffers[led.driver].led_control_buffer[led.r] = red ? 0x01 : 0x00;
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driver_buffers[led.driver].led_control_buffer[led.g] = green ? 0x01 : 0x00;
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driver_buffers[led.driver].led_control_buffer[led.b] = blue ? 0x01 : 0x00;
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driver_buffers[led.driver].led_control_buffer_dirty = true;
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}
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void is31fl3236_update_pwm_buffers(uint8_t index) {
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if (driver_buffers[index].pwm_buffer_dirty) {
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is31fl3236_write_pwm_buffer(index);
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// Load PWM registers and LED Control register data
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is31fl3236_write_register(index, IS31FL3236_REG_UPDATE, 0x01);
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driver_buffers[index].pwm_buffer_dirty = false;
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}
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}
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void is31fl3236_update_led_control_registers(uint8_t index) {
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if (driver_buffers[index].led_control_buffer_dirty) {
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for (uint8_t i = 0; i < IS31FL3236_LED_CONTROL_REGISTER_COUNT; i++) {
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is31fl3236_write_register(index, IS31FL3236_REG_LED_CONTROL + i, driver_buffers[index].led_control_buffer[i]);
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}
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driver_buffers[index].led_control_buffer_dirty = false;
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}
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}
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void is31fl3236_flush(void) {
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for (uint8_t i = 0; i < IS31FL3236_DRIVER_COUNT; i++) {
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is31fl3236_update_pwm_buffers(i);
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}
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}
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