LED drivers: switch to i2c_writeReg() (#22878)
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7a3183b8c8
commit
58696a3937
23 changed files with 172 additions and 477 deletions
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@ -19,7 +19,6 @@
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*/
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#include "is31fl3742a-mono.h"
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#include <string.h>
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#include "i2c_master.h"
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#include "wait.h"
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@ -54,8 +53,6 @@
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# define IS31FL3742A_GLOBAL_CURRENT 0xFF
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#endif
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uint8_t i2c_transfer_buffer[20] = {0xFF};
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uint8_t g_pwm_buffer[IS31FL3742A_DRIVER_COUNT][IS31FL3742A_PWM_REGISTER_COUNT];
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bool g_pwm_buffer_update_required[IS31FL3742A_DRIVER_COUNT] = {false};
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bool g_scaling_registers_update_required[IS31FL3742A_DRIVER_COUNT] = {false};
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@ -63,15 +60,12 @@ bool g_scaling_registers_update_required[IS31FL3742A_DRIVER_COUNT] = {false};
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uint8_t g_scaling_registers[IS31FL3742A_DRIVER_COUNT][IS31FL3742A_SCALING_REGISTER_COUNT];
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void is31fl3742a_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
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i2c_transfer_buffer[0] = reg;
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i2c_transfer_buffer[1] = data;
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#if IS31FL3742A_I2C_PERSISTENCE > 0
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for (uint8_t i = 0; i < IS31FL3742A_I2C_PERSISTENCE; i++) {
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if (i2c_transmit(addr << 1, i2c_transfer_buffer, 2, IS31FL3742A_I2C_TIMEOUT) == 0) break;
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if (i2c_writeReg(addr << 1, reg, &data, 1, IS31FL3742A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
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}
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#else
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i2c_transmit(addr << 1, i2c_transfer_buffer, 2, IS31FL3742A_I2C_TIMEOUT);
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i2c_writeReg(addr << 1, reg, &data, 1, IS31FL3742A_I2C_TIMEOUT);
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#endif
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}
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@ -82,24 +76,16 @@ void is31fl3742a_select_page(uint8_t addr, uint8_t page) {
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void is31fl3742a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
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// Assumes page 0 is already selected.
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// If any of the transactions fails function returns false.
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// Transmit PWM registers in 12 transfers of 16 bytes.
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// i2c_transfer_buffer[] is 20 bytes
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// Iterate over the pwm_buffer contents at 16 byte intervals.
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for (int i = 0; i < IS31FL3742A_PWM_REGISTER_COUNT; i += 16) {
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i2c_transfer_buffer[0] = i;
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// Copy the data from i to i+15.
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// Device will auto-increment register for data after the first byte
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// Thus this sets registers 0x00-0x0F, 0x10-0x1F, etc. in one transfer.
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memcpy(i2c_transfer_buffer + 1, pwm_buffer + i, 16);
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// Transmit PWM registers in 6 transfers of 30 bytes.
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// Iterate over the pwm_buffer contents at 30 byte intervals.
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for (uint8_t i = 0; i < IS31FL3742A_PWM_REGISTER_COUNT; i += 30) {
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#if IS31FL3742A_I2C_PERSISTENCE > 0
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for (uint8_t i = 0; i < IS31FL3742A_I2C_PERSISTENCE; i++) {
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if (i2c_transmit(addr << 1, i2c_transfer_buffer, 17, IS31FL3742A_I2C_TIMEOUT) != 0) break;
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for (uint8_t j = 0; j < IS31FL3742A_I2C_PERSISTENCE; j++) {
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if (i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 30, IS31FL3742A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
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}
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#else
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i2c_transmit(addr << 1, i2c_transfer_buffer, 17, IS31FL3742A_I2C_TIMEOUT);
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i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 30, IS31FL3742A_I2C_TIMEOUT);
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#endif
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}
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}
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