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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.
*
* Dual Role (Source & Sink) USB-PD module.
*/
#include "usb_pd.h"
#if defined(PD_MAX_VOLTAGE_MV) && defined(PD_OPERATING_POWER_MW)
/*
* As a sink, this is the max voltage (in millivolts) we can request
* before getting source caps
*/
static unsigned int max_request_mv = PD_MAX_VOLTAGE_MV;
void pd_set_max_voltage(unsigned int mv)
{
max_request_mv = mv;
}
unsigned int pd_get_max_voltage(void)
{
return max_request_mv;
}
#endif /* defined(PD_MAX_VOLTAGE_MV) && defined(PD_OPERATING_POWER_MW) */
int pd_charge_from_device(uint16_t vid, uint16_t pid)
{
/* TODO: rewrite into table if we get more of these */
/*
* White-list Apple charge-through accessory since it doesn't set
* unconstrained bit, but we still need to charge from it when
* we are a sink.
*/
return (vid == USB_VID_APPLE &&
(pid == USB_PID1_APPLE || pid == USB_PID2_APPLE));
}
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