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LED drivers: add support for IS31FL3236 (#23264)

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Ryan 2024-03-17 19:23:14 +11:00 • committed by GitHub
parent 47dc471bd4
commit 23b7a02ebe
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11 changed files with 581 additions and 3 deletions
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drivers/led/issi/is31fl3236.c Normal file
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// Copyright 2024 QMK
// SPDX-License-Identifier: GPL-2.0-or-later
#include "is31fl3236.h"
#include "i2c_master.h"
#include "gpio.h"
#define IS31FL3236_PWM_REGISTER_COUNT 36
#define IS31FL3236_LED_CONTROL_REGISTER_COUNT 36
#ifndef IS31FL3236_I2C_TIMEOUT
# define IS31FL3236_I2C_TIMEOUT 100
#endif
#ifndef IS31FL3236_I2C_PERSISTENCE
# define IS31FL3236_I2C_PERSISTENCE 0
#endif
#ifndef IS31FL3236_PWM_FREQUENCY
# define IS31FL3236_PWM_FREQUENCY IS31FL3236_PWM_FREQUENCY_3K_HZ // OFS - IS31FL3236A only
#endif
const uint8_t i2c_addresses[IS31FL3236_DRIVER_COUNT] = {
IS31FL3236_I2C_ADDRESS_1,
#ifdef IS31FL3236_I2C_ADDRESS_2
IS31FL3236_I2C_ADDRESS_2,
# ifdef IS31FL3236_I2C_ADDRESS_3
IS31FL3236_I2C_ADDRESS_3,
# ifdef IS31FL3236_I2C_ADDRESS_4
IS31FL3236_I2C_ADDRESS_4,
# endif
# endif
#endif
};
typedef struct is31fl3236_driver_t {
uint8_t pwm_buffer[IS31FL3236_PWM_REGISTER_COUNT];
bool pwm_buffer_dirty;
uint8_t led_control_buffer[IS31FL3236_LED_CONTROL_REGISTER_COUNT];
bool led_control_buffer_dirty;
} PACKED is31fl3236_driver_t;
is31fl3236_driver_t driver_buffers[IS31FL3236_DRIVER_COUNT] = {{
.pwm_buffer = {0},
.pwm_buffer_dirty = false,
.led_control_buffer = {0},
.led_control_buffer_dirty = false,
}};
void is31fl3236_write_register(uint8_t index, uint8_t reg, uint8_t data) {
#if IS31FL3236_I2C_PERSISTENCE > 0
for (uint8_t i = 0; i < IS31FL3236_I2C_PERSISTENCE; i++) {
if (i2c_write_register(i2c_addresses[index] << 1, reg, &data, 1, IS31FL3236_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
}
#else
i2c_write_register(i2c_addresses[index] << 1, reg, &data, 1, IS31FL3236_I2C_TIMEOUT);
#endif
}
void is31fl3236_write_pwm_buffer(uint8_t index) {
#if IS31FL3236_I2C_PERSISTENCE > 0
for (uint8_t i = 0; i < IS31FL3236_I2C_PERSISTENCE; i++) {
if (i2c_write_register(i2c_addresses[index] << 1, IS31FL3236_REG_PWM, driver_buffers[index].pwm_buffer, 36, IS31FL3236_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
}
#else
i2c_write_register(i2c_addresses[index] << 1, IS31FL3236_REG_PWM, driver_buffers[index].pwm_buffer, 36, IS31FL3236_I2C_TIMEOUT);
#endif
}
void is31fl3236_init_drivers(void) {
i2c_init();
#if defined(IS31FL3236_SDB_PIN)
gpio_set_pin_output(IS31FL3236_SDB_PIN);
gpio_write_pin_high(IS31FL3236_SDB_PIN);
#endif
for (uint8_t i = 0; i < IS31FL3236_DRIVER_COUNT; i++) {
is31fl3236_init(i);
}
for (uint8_t i = 0; i < IS31FL3236_LED_COUNT; i++) {
is31fl3236_set_led_control_register(i, true, true, true);
}
for (uint8_t i = 0; i < IS31FL3236_DRIVER_COUNT; i++) {
is31fl3236_update_led_control_registers(i);
}
}
void is31fl3236_init(uint8_t index) {
// In case we ever want to reinitialize (?)
is31fl3236_write_register(index, IS31FL3236_REG_RESET, 0x00);
// Turn off software shutdown
is31fl3236_write_register(index, IS31FL3236_REG_SHUTDOWN, 0x01);
// Set all PWM values to zero
for (uint8_t i = 0; i < IS31FL3236_PWM_REGISTER_COUNT; i++) {
is31fl3236_write_register(index, IS31FL3236_REG_PWM + i, 0x00);
}
// turn off all LEDs in the LED control register
for (uint8_t i = 0; i < IS31FL3236_LED_CONTROL_REGISTER_COUNT; i++) {
is31fl3236_write_register(index, IS31FL3236_REG_LED_CONTROL + i, 0x00);
}
// Set PWM frequency (IS31FL3236A)
is31fl3236_write_register(index, IS31FL3236_REG_PWM_FREQUENCY, IS31FL3236_PWM_FREQUENCY);
// Load PWM registers and LED Control register data
is31fl3236_write_register(index, IS31FL3236_REG_UPDATE, 0x01);
}
void is31fl3236_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
is31fl3236_led_t led;
if (index < IS31FL3236_LED_COUNT) {
memcpy_P(&led, (&g_is31fl3236_leds[index]), sizeof(led));
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) {
return;
}
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;
driver_buffers[led.driver].pwm_buffer_dirty = true;
}
}
void is31fl3236_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
for (uint8_t i = 0; i < IS31FL3236_LED_COUNT; i++) {
is31fl3236_set_color(i, red, green, blue);
}
}
void is31fl3236_set_led_control_register(uint8_t index, bool red, bool green, bool blue) {
is31fl3236_led_t led;
memcpy_P(&led, (&g_is31fl3236_leds[index]), sizeof(led));
driver_buffers[led.driver].led_control_buffer[led.r] = red ? 0x01 : 0x00;
driver_buffers[led.driver].led_control_buffer[led.g] = green ? 0x01 : 0x00;
driver_buffers[led.driver].led_control_buffer[led.b] = blue ? 0x01 : 0x00;
driver_buffers[led.driver].led_control_buffer_dirty = true;
}
void is31fl3236_update_pwm_buffers(uint8_t index) {
if (driver_buffers[index].pwm_buffer_dirty) {
is31fl3236_write_pwm_buffer(index);
// Load PWM registers and LED Control register data
is31fl3236_write_register(index, IS31FL3236_REG_UPDATE, 0x01);
driver_buffers[index].pwm_buffer_dirty = false;
}
}
void is31fl3236_update_led_control_registers(uint8_t index) {
if (driver_buffers[index].led_control_buffer_dirty) {
for (uint8_t i = 0; i < IS31FL3236_LED_CONTROL_REGISTER_COUNT; i++) {
is31fl3236_write_register(index, IS31FL3236_REG_LED_CONTROL + i, driver_buffers[index].led_control_buffer[i]);
}
driver_buffers[index].led_control_buffer_dirty = false;
}
}
void is31fl3236_flush(void) {
for (uint8_t i = 0; i < IS31FL3236_DRIVER_COUNT; i++) {
is31fl3236_update_pwm_buffers(i);
}
}