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LED drivers: add defines for PWM and LED control register counts (#22383)

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Ryan 2023-11-02 06:13:25 +11:00 • committed by GitHub
parent 0a94c2951f
commit a27bc60703
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GPG key ID: 4AEE18F83AFDEB23
15 changed files with 130 additions and 91 deletions
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13
drivers/led/snled27351.c
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@ -17,6 +17,9 @@
#include "snled27351.h"
#include "i2c_master.h"
#define SNLED27351_PWM_REGISTER_COUNT 192
#define SNLED27351_LED_CONTROL_REGISTER_COUNT 24
#ifndef SNLED27351_I2C_TIMEOUT
# define SNLED27351_I2C_TIMEOUT 100
#endif
@ -43,11 +46,11 @@ uint8_t g_twi_transfer_buffer[65];
// 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][192];
uint8_t g_pwm_buffer[SNLED27351_DRIVER_COUNT][SNLED27351_PWM_REGISTER_COUNT];
bool g_pwm_buffer_update_required[SNLED27351_DRIVER_COUNT] = {false};
uint8_t g_led_control_registers[SNLED27351_DRIVER_COUNT][24] = {0};
bool g_led_control_registers_update_required[SNLED27351_DRIVER_COUNT] = {false};
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};
bool snled27351_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
// If the transaction fails function returns false.
@ -74,7 +77,7 @@ bool snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
// Transmit PWM registers in 3 transfers of 64 bytes.
// Iterate over the pwm_buffer contents at 64 byte intervals.
for (uint8_t i = 0; i < 192; i += 64) {
for (uint8_t i = 0; i < SNLED27351_PWM_REGISTER_COUNT; i += 64) {
g_twi_transfer_buffer[0] = i;
// Copy the data from i to i+63.
// Device will auto-increment register for data after the first byte
@ -239,7 +242,7 @@ void snled27351_update_pwm_buffers(uint8_t addr, uint8_t index) {
void snled27351_update_led_control_registers(uint8_t addr, uint8_t index) {
if (g_led_control_registers_update_required[index]) {
snled27351_write_register(addr, SNLED27351_REG_CONFIGURE_CMD_PAGE, SNLED27351_LED_CONTROL_PAGE);
for (int i = 0; i < 24; i++) {
for (int i = 0; i < SNLED27351_LED_CONTROL_REGISTER_COUNT; i++) {
snled27351_write_register(addr, i, g_led_control_registers[index][i]);
}
}