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LED drivers: switch to i2c_writeReg() (#22878)

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Ryan 2024-01-10 17:25:34 +11:00 • committed by GitHub
parent 7a3183b8c8
commit 58696a3937
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GPG key ID: 4AEE18F83AFDEB23
23 changed files with 172 additions and 477 deletions
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30
drivers/led/issi/is31fl3746a-mono.c
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@ -19,7 +19,6 @@
*/
#include "is31fl3746a-mono.h"
#include <string.h>
#include "i2c_master.h"
#include "wait.h"
@ -54,8 +53,6 @@
# define IS31FL3746A_GLOBAL_CURRENT 0xFF
#endif
uint8_t i2c_transfer_buffer[20] = {0xFF};
uint8_t g_pwm_buffer[IS31FL3746A_DRIVER_COUNT][IS31FL3746A_PWM_REGISTER_COUNT];
bool g_pwm_buffer_update_required[IS31FL3746A_DRIVER_COUNT] = {false};
bool g_scaling_registers_update_required[IS31FL3746A_DRIVER_COUNT] = {false};
@ -63,15 +60,12 @@ bool g_scaling_registers_update_required[IS31FL3746A_DRIVER_COUNT] = {false};
uint8_t g_scaling_registers[IS31FL3746A_DRIVER_COUNT][IS31FL3746A_SCALING_REGISTER_COUNT];
void is31fl3746a_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
i2c_transfer_buffer[0] = reg;
i2c_transfer_buffer[1] = data;
#if IS31FL3746A_I2C_PERSISTENCE > 0
for (uint8_t i = 0; i < IS31FL3746A_I2C_PERSISTENCE; i++) {
if (i2c_transmit(addr << 1, i2c_transfer_buffer, 2, IS31FL3746A_I2C_TIMEOUT) == 0) break;
if (i2c_writeReg(addr << 1, reg, &data, 1, IS31FL3746A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
}
#else
i2c_transmit(addr << 1, i2c_transfer_buffer, 2, IS31FL3746A_I2C_TIMEOUT);
i2c_writeReg(addr << 1, reg, &data, 1, IS31FL3746A_I2C_TIMEOUT);
#endif
}
@ -82,24 +76,16 @@ void is31fl3746a_select_page(uint8_t addr, uint8_t page) {
void is31fl3746a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
// Assumes page 0 is already selected.
// If any of the transactions fails function returns false.
// Transmit PWM registers in 12 transfers of 16 bytes.
// i2c_transfer_buffer[] is 20 bytes
// Iterate over the pwm_buffer contents at 16 byte intervals.
for (int i = 0; i < IS31FL3746A_PWM_REGISTER_COUNT; i += 16) {
i2c_transfer_buffer[0] = i + 1;
// Copy the data from i to i+15.
// Device will auto-increment register for data after the first byte
// Thus this sets registers 0x00-0x0F, 0x10-0x1F, etc. in one transfer.
memcpy(i2c_transfer_buffer + 1, pwm_buffer + i, 16);
// Transmit PWM registers in 4 transfers of 18 bytes.
// Iterate over the pwm_buffer contents at 18 byte intervals.
for (uint8_t i = 0; i < IS31FL3746A_PWM_REGISTER_COUNT; i += 18) {
#if IS31FL3746A_I2C_PERSISTENCE > 0
for (uint8_t i = 0; i < IS31FL3746A_I2C_PERSISTENCE; i++) {
if (i2c_transmit(addr << 1, i2c_transfer_buffer, 17, IS31FL3746A_I2C_TIMEOUT) != 0) break;
for (uint8_t j = 0; j < IS31FL3746A_I2C_PERSISTENCE; j++) {
if (i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3746A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
}
#else
i2c_transmit(addr << 1, i2c_transfer_buffer, 17, IS31FL3746A_I2C_TIMEOUT);
i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3746A_I2C_TIMEOUT);
#endif
}
}