LED drivers: switch to i2c_writeReg() (#22878)
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					 23 changed files with 172 additions and 477 deletions
				
			
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			@ -60,8 +60,6 @@
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#    define IS31FL3733_SYNC_4 IS31FL3733_SYNC_NONE
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#endif
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uint8_t i2c_transfer_buffer[20];
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// These buffers match the IS31FL3733 PWM registers.
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// The control buffers match the page 0 LED On/Off registers.
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// Storing them like this is optimal for I2C transfers to the registers.
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			@ -75,15 +73,12 @@ uint8_t g_led_control_registers[IS31FL3733_DRIVER_COUNT][IS31FL3733_LED_CONTROL_
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bool    g_led_control_registers_update_required[IS31FL3733_DRIVER_COUNT]                        = {false};
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void is31fl3733_write_register(uint8_t index, 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 IS31FL3733_I2C_PERSISTENCE > 0
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    for (uint8_t i = 0; i < IS31FL3733_I2C_PERSISTENCE; i++) {
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        if (i2c_transmit(index, addr << 1, i2c_transfer_buffer, 2, IS31FL3733_I2C_TIMEOUT) == 0) break;
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        if (i2c_writeReg(index, addr << 1, reg, &data, 1, IS31FL3733_I2C_TIMEOUT) == 0) break;
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    }
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#else
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    i2c_transmit(index, addr << 1, i2c_transfer_buffer, 2, IS31FL3733_I2C_TIMEOUT);
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    i2c_writeReg(index, addr << 1, reg, &data, 1, IS31FL3733_I2C_TIMEOUT);
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#endif
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}
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			@ -95,24 +90,15 @@ void is31fl3733_select_page(uint8_t index, uint8_t addr, uint8_t page) {
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void is31fl3733_write_pwm_buffer(uint8_t index, uint8_t addr, uint8_t *pwm_buffer) {
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    // Assumes page 1 is already selected.
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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 < IS31FL3733_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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        for (int j = 0; j < 16; j++) {
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            i2c_transfer_buffer[1 + j] = pwm_buffer[i + j];
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        }
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#if IS31FL3733_I2C_PERSISTENCE > 0
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        for (uint8_t i = 0; i < IS31FL3733_I2C_PERSISTENCE; i++) {
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            if (i2c_transmit(index, addr << 1, i2c_transfer_buffer, 17, IS31FL3733_I2C_TIMEOUT) == 0) break;
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            if (i2c_writeReg(index, addr << 1, i, pwm_buffer + i, 16, IS31FL3733_I2C_TIMEOUT) == 0) break;
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        }
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#else
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        i2c_transmit(index, addr << 1, i2c_transfer_buffer, 17, IS31FL3733_I2C_TIMEOUT);
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        i2c_writeReg(index, addr << 1, i, pwm_buffer + i, 16, IS31FL3733_I2C_TIMEOUT);
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#endif
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    }
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}
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