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4d382ad640
We will soon have a need to independently set a charge ceiling from both the PD state machine and from incoming host commands. Store these ceilings separately, and have the minimum take effect. BUG=chrome-os-partner:43285 TEST=Pass unit tests. Also, host command current limit takes effect with subsequent commit. BRANCH=None Change-Id: I0ecfe888a7df0d5da5a68999c164c7c841da348b Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/293818 Reviewed-by: Alec Berg <alecaberg@chromium.org>
94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
/* Copyright (c) 2014 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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#ifndef __CROS_EC_CHARGE_MANAGER_H
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#define __CROS_EC_CHARGE_MANAGER_H
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#include "common.h"
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/* Charge port that indicates no active port */
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#define CHARGE_SUPPLIER_NONE -1
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#define CHARGE_PORT_NONE -1
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#define CHARGE_CEIL_NONE -1
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/* Initial charge state */
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#define CHARGE_CURRENT_UNINITIALIZED -1
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#define CHARGE_VOLTAGE_UNINITIALIZED -1
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/* Commonly-used charge suppliers listed in no particular order */
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enum charge_supplier {
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CHARGE_SUPPLIER_PD,
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CHARGE_SUPPLIER_TYPEC,
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CHARGE_SUPPLIER_BC12_DCP,
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CHARGE_SUPPLIER_BC12_CDP,
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CHARGE_SUPPLIER_BC12_SDP,
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CHARGE_SUPPLIER_PROPRIETARY,
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CHARGE_SUPPLIER_OTHER,
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CHARGE_SUPPLIER_VBUS,
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CHARGE_SUPPLIER_COUNT
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};
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/* Charge tasks report available current and voltage */
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struct charge_port_info {
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int current;
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int voltage;
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};
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/* Called by charging tasks to update their available charge */
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void charge_manager_update_charge(int supplier,
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int port,
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struct charge_port_info *charge);
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/* Partner port dualrole capabilities */
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enum dualrole_capabilities {
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CAP_UNKNOWN,
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CAP_DUALROLE,
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CAP_DEDICATED,
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};
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/* Called by charging tasks to indicate partner dualrole capability change */
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void charge_manager_update_dualrole(int port, enum dualrole_capabilities cap);
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/*
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* Charge ceiling can be set independently by different tasks / functions,
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* for different purposes.
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*/
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enum ceil_requestor {
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/* Set by PD task, during negotiation */
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CEIL_REQUESTOR_PD,
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/* Set by host commands */
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CEIL_REQUESTOR_HOST,
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/* Number of ceiling groups */
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CEIL_REQUESTOR_COUNT,
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};
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/* Update charge ceiling for a given port / requestor */
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void charge_manager_set_ceil(int port, enum ceil_requestor requestor, int ceil);
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/* Select an 'override port', which is always the preferred charge port */
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int charge_manager_set_override(int port);
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int charge_manager_get_override(void);
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/* Returns the current active charge port, as determined by charge manager */
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int charge_manager_get_active_charge_port(void);
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#ifdef CONFIG_USB_PD_LOGGING
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/* Save power state log entry for the given port */
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void charge_manager_save_log(int port);
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#endif
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/* Board-level callback functions */
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/*
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* Set the active charge port. Returns EC_SUCCESS if the charge port is
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* accepted, returns ec_error_list status otherwise.
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*/
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int board_set_active_charge_port(int charge_port);
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/* Set the charge current limit. */
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void board_set_charge_limit(int charge_ma);
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#endif /* __CROS_EC_CHARGE_MANAGER_H */
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