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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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24 changed files with 668 additions and 479 deletions
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54
drivers/led/snled27351.c
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@ -56,11 +56,19 @@ const uint8_t i2c_addresses[SNLED27351_DRIVER_COUNT] = {
// We could optimize this and take out the unused registers from these
// buffers and the transfers in snled27351_write_pwm_buffer() but it's
// probably not worth the extra complexity.
uint8_t g_pwm_buffer[SNLED27351_DRIVER_COUNT][SNLED27351_PWM_REGISTER_COUNT];
bool g_pwm_buffer_update_required[SNLED27351_DRIVER_COUNT] = {false};
typedef struct snled27351_driver_t {
uint8_t pwm_buffer[SNLED27351_PWM_REGISTER_COUNT];
bool pwm_buffer_dirty;
uint8_t led_control_buffer[SNLED27351_LED_CONTROL_REGISTER_COUNT];
bool led_control_buffer_dirty;
} PACKED snled27351_driver_t;
uint8_t g_led_control_registers[SNLED27351_DRIVER_COUNT][SNLED27351_LED_CONTROL_REGISTER_COUNT] = {0};
bool g_led_control_registers_update_required[SNLED27351_DRIVER_COUNT] = {false};
snled27351_driver_t driver_buffers[SNLED27351_DRIVER_COUNT] = {{
.pwm_buffer = {0},
.pwm_buffer_dirty = false,
.led_control_buffer = {0},
.led_control_buffer_dirty = false,
}};
void snled27351_write_register(uint8_t index, uint8_t reg, uint8_t data) {
#if SNLED27351_I2C_PERSISTENCE > 0
@ -84,10 +92,10 @@ void snled27351_write_pwm_buffer(uint8_t index) {
for (uint8_t i = 0; i < SNLED27351_PWM_REGISTER_COUNT; i += 16) {
#if SNLED27351_I2C_PERSISTENCE > 0
for (uint8_t j = 0; j < SNLED27351_I2C_PERSISTENCE; j++) {
if (i2c_write_register(i2c_addresses[index] << 1, i, g_pwm_buffer[index] + i, 16, SNLED27351_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
if (i2c_write_register(i2c_addresses[index] << 1, i, driver_buffers[index].pwm_buffer + i, 16, SNLED27351_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
}
#else
i2c_write_register(i2c_addresses[index] << 1, i, g_pwm_buffer[index] + i, 16, SNLED27351_I2C_TIMEOUT);
i2c_write_register(i2c_addresses[index] << 1, i, driver_buffers[index].pwm_buffer + i, 16, SNLED27351_I2C_TIMEOUT);
#endif
}
}
@ -160,14 +168,14 @@ void snled27351_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
if (index >= 0 && index < SNLED27351_LED_COUNT) {
memcpy_P(&led, (&g_snled27351_leds[index]), sizeof(led));
if (g_pwm_buffer[led.driver][led.r] == red && g_pwm_buffer[led.driver][led.g] == green && g_pwm_buffer[led.driver][led.b] == blue) {
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;
}
g_pwm_buffer[led.driver][led.r] = red;
g_pwm_buffer[led.driver][led.g] = green;
g_pwm_buffer[led.driver][led.b] = blue;
g_pwm_buffer_update_required[led.driver] = true;
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;
}
}
@ -189,43 +197,43 @@ void snled27351_set_led_control_register(uint8_t index, bool red, bool green, bo
uint8_t bit_b = led.b % 8;
if (red) {
g_led_control_registers[led.driver][control_register_r] |= (1 << bit_r);
driver_buffers[led.driver].led_control_buffer[control_register_r] |= (1 << bit_r);
} else {
g_led_control_registers[led.driver][control_register_r] &= ~(1 << bit_r);
driver_buffers[led.driver].led_control_buffer[control_register_r] &= ~(1 << bit_r);
}
if (green) {
g_led_control_registers[led.driver][control_register_g] |= (1 << bit_g);
driver_buffers[led.driver].led_control_buffer[control_register_g] |= (1 << bit_g);
} else {
g_led_control_registers[led.driver][control_register_g] &= ~(1 << bit_g);
driver_buffers[led.driver].led_control_buffer[control_register_g] &= ~(1 << bit_g);
}
if (blue) {
g_led_control_registers[led.driver][control_register_b] |= (1 << bit_b);
driver_buffers[led.driver].led_control_buffer[control_register_b] |= (1 << bit_b);
} else {
g_led_control_registers[led.driver][control_register_b] &= ~(1 << bit_b);
driver_buffers[led.driver].led_control_buffer[control_register_b] &= ~(1 << bit_b);
}
g_led_control_registers_update_required[led.driver] = true;
driver_buffers[led.driver].led_control_buffer_dirty = true;
}
void snled27351_update_pwm_buffers(uint8_t index) {
if (g_pwm_buffer_update_required[index]) {
if (driver_buffers[index].pwm_buffer_dirty) {
snled27351_select_page(index, SNLED27351_COMMAND_PWM);
snled27351_write_pwm_buffer(index);
g_pwm_buffer_update_required[index] = false;
driver_buffers[index].pwm_buffer_dirty = false;
}
}
void snled27351_update_led_control_registers(uint8_t index) {
if (g_led_control_registers_update_required[index]) {
if (driver_buffers[index].led_control_buffer_dirty) {
snled27351_select_page(index, SNLED27351_COMMAND_LED_CONTROL);
for (uint8_t i = 0; i < SNLED27351_LED_CONTROL_REGISTER_COUNT; i++) {
snled27351_write_register(index, i, g_led_control_registers[index][i]);
snled27351_write_register(index, i, driver_buffers[index].led_control_buffer[i]);
}
g_led_control_registers_update_required[index] = false;
driver_buffers[index].led_control_buffer_dirty = false;
}
}