mirror of https://github.com/google/pebble
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/*
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* Copyright 2024 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "drivers/battery.h"
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#include "drivers/qemu/qemu_serial.h"
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#include "drivers/qemu/qemu_settings.h"
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#include "system/passert.h"
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#include "services/common/battery/battery_state.h"
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#include "services/common/battery/battery_curve.h"
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#include "system/logging.h"
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#include "util/math.h"
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#include "util/net.h"
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static uint16_t s_battery_mv = 4000;
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static bool s_usb_connected;
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static uint8_t s_percent = 100;
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void battery_init(void) {
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s_usb_connected = qemu_setting_get(QemuSetting_DefaultPluggedIn);
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}
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// TODO: update whoever uses this function
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int battery_get_millivolts(void) {
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return s_battery_mv;
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}
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bool battery_charge_controller_thinks_we_are_charging_impl(void) {
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return s_usb_connected && (s_percent < 100);
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}
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bool battery_is_usb_connected_impl(void) {
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return s_usb_connected;
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}
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void battery_set_charge_enable(bool charging_enabled) {
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s_usb_connected = false;
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}
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void battery_set_fast_charge(bool fast_charge_enabled) {
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}
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void qemu_battery_msg_callback(const uint8_t *data, uint32_t len) {
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QemuProtocolBatteryHeader *hdr = (QemuProtocolBatteryHeader *)data;
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if (len != sizeof(*hdr)) {
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PBL_LOG(LOG_LEVEL_ERROR, "Invalid packet length");
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return;
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}
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PBL_LOG(LOG_LEVEL_DEBUG, "Got battery msg: pct: %d, charger_connected:%d",
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hdr->battery_pct, hdr->charger_connected);
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s_percent = MIN(100, hdr->battery_pct);
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s_usb_connected = hdr->charger_connected;
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s_battery_mv = battery_curve_lookup_voltage_by_percent(s_percent, hdr->charger_connected);
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// Reset the time averaging so these new values take effect immediately
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battery_state_reset_filter();
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// Force a state machine update
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battery_state_handle_connection_event(s_usb_connected);
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}
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