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/* Copyright 2020 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* PI3HDX1204 retimer.
*/
#include "i2c.h"
#include "pi3hdx1204.h"
int pi3hdx1204_enable(const int i2c_port,
const uint16_t i2c_addr_flags,
const int enable)
{
const uint8_t buf[PI3HDX1204_DE_OFFSET + 1] = {
[PI3HDX1204_ACTIVITY_OFFSET] = 0, /* Read Only */
[PI3HDX1204_NOT_USED_OFFSET] = 0, /* Read Only */
[PI3HDX1204_ENABLE_OFFSET] =
enable ? PI3HDX1204_ENABLE_ALL_CHANNELS : 0,
[PI3HDX1204_EQ_CH0_CH1_OFFSET] =
pi3hdx1204_tuning.eq_ch0_ch1_offset,
[PI3HDX1204_EQ_CH2_CH3_OFFSET] =
pi3hdx1204_tuning.eq_ch2_ch3_offset,
[PI3HDX1204_VOD_OFFSET] = pi3hdx1204_tuning.vod_offset,
[PI3HDX1204_DE_OFFSET] = pi3hdx1204_tuning.de_offset,
};
int rv;
rv = i2c_xfer(i2c_port, i2c_addr_flags,
buf, PI3HDX1204_DE_OFFSET + 1,
NULL, 0);
if (rv)
ccprints("pi3hdx1204 enable failed: %d", rv);
return rv;
}
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