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LED drivers: create structs to hold PWM/scaling buffers (#22955)

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Ryan 2024-02-10 18:48:13 +11:00 • committed by GitHub
parent a5ea619139
commit 66015f1645
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GPG key ID: B5690EEEBB952194
24 changed files with 668 additions and 479 deletions
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44
drivers/led/issi/is31fl3218-mono.c
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@ -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
}
@ -90,12 +98,12 @@ void is31fl3218_set_value(int index, uint8_t value) {
if (index >= 0 && index < IS31FL3218_LED_COUNT) {
memcpy_P(&led, (&g_is31fl3218_leds[index]), sizeof(led));
if (g_pwm_buffer[led.v] == value) {
if (driver_buffers.pwm_buffer[led.v] == value) {
return;
}
g_pwm_buffer[led.v] = value;
g_pwm_buffer_update_required = true;
driver_buffers.pwm_buffer[led.v] = value;
driver_buffers.pwm_buffer_dirty = true;
}
}
@ -113,30 +121,30 @@ void is31fl3218_set_led_control_register(uint8_t index, bool value) {
uint8_t bit_value = led.v % 6;
if (value) {
g_led_control_registers[control_register] |= (1 << bit_value);
driver_buffers.led_control_buffer[control_register] |= (1 << bit_value);
} else {
g_led_control_registers[control_register] &= ~(1 << bit_value);
driver_buffers.led_control_buffer[control_register] &= ~(1 << bit_value);
}
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;
}
}