diff options
Diffstat (limited to 'drivers/led/issi/is31fl3236-mono.c')
| -rw-r--r-- | drivers/led/issi/is31fl3236-mono.c | 168 | 
1 files changed, 168 insertions, 0 deletions
| diff --git a/drivers/led/issi/is31fl3236-mono.c b/drivers/led/issi/is31fl3236-mono.c new file mode 100644 index 0000000000..b80245a1dc --- /dev/null +++ b/drivers/led/issi/is31fl3236-mono.c @@ -0,0 +1,168 @@ +// Copyright 2024 QMK +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "is31fl3236-mono.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); +    } + +    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_value(int index, uint8_t value) { +    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.v] == value) { +            return; +        } + +        driver_buffers[led.driver].pwm_buffer[led.v] = value; +        driver_buffers[led.driver].pwm_buffer_dirty  = true; +    } +} + +void is31fl3236_set_value_all(uint8_t value) { +    for (uint8_t i = 0; i < IS31FL3236_LED_COUNT; i++) { +        is31fl3236_set_value(i, value); +    } +} + +void is31fl3236_set_led_control_register(uint8_t index, bool value) { +    is31fl3236_led_t led; +    memcpy_P(&led, (&g_is31fl3236_leds[index]), sizeof(led)); + +    driver_buffers[led.driver].led_control_buffer[led.v] = value ? 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); +    } +} | 
