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050c7df011
This module controls the inductive charging transmitter. For now, the policy is to charge whenever possible. BUG=chrome-os-partner:31392 TEST=Unit test passed BRANCH=None Change-Id: Ie48a38ad92fe2bc3329c4962e96572f2bc40b4e6 Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/212715
38 lines
1.0 KiB
C
38 lines
1.0 KiB
C
/* Copyright 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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/* Inductive charging control */
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#include "common.h"
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#include "gpio.h"
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#include "hooks.h"
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#include "lid_switch.h"
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void inductive_charging_interrupt(enum gpio_signal signal)
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{
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int charger_enabled = gpio_get_level(GPIO_BASE_CHG_VDD_EN);
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int charge_done = gpio_get_level(GPIO_CHARGE_DONE);
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if (!charger_enabled || charge_done)
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gpio_set_level(GPIO_CHARGE_EN, 0);
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else
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gpio_set_level(GPIO_CHARGE_EN, 1);
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}
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static void inductive_charging_lid_update(void)
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{
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int lid_open = lid_is_open();
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gpio_set_level(GPIO_BASE_CHG_VDD_EN, !lid_open);
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inductive_charging_interrupt(GPIO_LID_OPEN);
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}
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DECLARE_HOOK(HOOK_LID_CHANGE, inductive_charging_lid_update, HOOK_PRIO_DEFAULT);
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static void inductive_charging_init(void)
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{
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gpio_enable_interrupt(GPIO_CHARGE_DONE);
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inductive_charging_lid_update();
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}
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DECLARE_HOOK(HOOK_INIT, inductive_charging_init, HOOK_PRIO_DEFAULT);
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