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feea8de21b
Move common USB charger code out of board directory including setting VBUS supplier when VBUS changes, and initializing BC1.2 supplier types on init. This also enables re-enabling of Pericom BC1.2 detection interrupts when VBUS is changed on all boards that use USB_CHG task. BUG=chrome-os-partner:42292 BRANCH=none TEST=make -j buildall. Tested on glados and samus by plugging in a few different chargers and making sure we charge. Change-Id: Ib102fbf7a6aace998e6fcb6d35f3c97e5f03f5c2 Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/290453 Reviewed-by: Shawn N <shawnn@chromium.org> Reviewed-by: Rong Chang <rongchang@chromium.org>
85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* USB charging control module for Chrome EC */
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#ifndef __CROS_EC_USB_CHARGE_H
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#define __CROS_EC_USB_CHARGE_H
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#include "common.h"
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/* USB charger voltage */
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#define USB_CHARGER_VOLTAGE_MV 5000
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/* USB charger minimum current */
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#define USB_CHARGER_MIN_CURR_MA 500
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enum usb_charge_mode {
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/* Disable USB port. */
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USB_CHARGE_MODE_DISABLED,
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/* Set USB port to Standard Downstream Port, USB 2.0 mode. */
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USB_CHARGE_MODE_SDP2,
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/* Set USB port to Charging Downstream Port, BC 1.2. */
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USB_CHARGE_MODE_CDP,
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/* Set USB port to Dedicated Charging Port, BC 1.2. */
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USB_CHARGE_MODE_DCP_SHORT,
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/* Enable USB port (for dumb ports). */
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USB_CHARGE_MODE_ENABLED,
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USB_CHARGE_MODE_COUNT
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};
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/**
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* Set USB charge mode for the port.
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*
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* @param usb_port_id Port to set.
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* @param mode New mode for port.
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* @return EC_SUCCESS, or non-zero if error.
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*/
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int usb_charge_set_mode(int usb_port_id, enum usb_charge_mode mode);
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/**
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* Return a bitmask of which USB ports are enabled.
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*
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* If bit (1 << i) is set, port <i> is enabled. If it is clear, port <i> is
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* in USB_CHARGE_MODE_DISABLED.
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*/
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int usb_charge_ports_enabled(void);
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/* Events handled by the USB_CHG task */
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#define USB_CHG_EVENT_BC12 TASK_EVENT_CUSTOM(1)
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#define USB_CHG_EVENT_VBUS TASK_EVENT_CUSTOM(2)
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/**
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* Returns true if the passed port is a power source.
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*
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* @param port Port number.
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* @return True if port is sourcing vbus.
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*/
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int usb_charger_port_is_sourcing_vbus(int port);
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enum usb_switch {
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USB_SWITCH_CONNECT,
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USB_SWITCH_DISCONNECT,
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USB_SWITCH_RESTORE,
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};
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/**
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* Configure USB data switches on type-C port.
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*
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* @param port port number.
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* @param setting new switch setting to configure.
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*/
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void usb_charger_set_switches(int port, enum usb_switch setting);
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/**
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* Notify USB_CHG task that VBUS level has changed.
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*
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* @param port port number.
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* @param vbus_level new VBUS level
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*/
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void usb_charger_vbus_change(int port, int vbus_level);
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#endif /* __CROS_EC_USB_CHARGE_H */
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