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healthd: add support for dynamic logging 

Core healthd shows a log with battery parameters and charging
status periodically. Currently this is kept disabled by default
to reduce log spew. Add support to control this logging based
on a property (persist.healthd_msm.log_en) which upon set will
enable logging. This will be useful for testing.

Change-Id: Ic23f4ba310994dc0a265de3dd09898dd75075e00
This commit is contained in:
Subbaraman Narayanamurthy 2017-01-26 18:44:26 -08:00
parent 7c3d7ba0f1
commit 4b3284ae73
1 changed files with 11 additions and 0 deletions
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11
healthd/healthd_board_msm.cpp
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@ -35,6 +35,7 @@
#include <cutils/klog.h>
#include <batteryservice/BatteryService.h>
#include <cutils/android_reboot.h>
#include <cutils/properties.h>
#include <healthd.h>
#include "minui/minui.h"
#include "healthd_msm.h"
@ -105,6 +106,7 @@ struct soc_led_color_mapping soc_leds[3] = {
static int batt_info_cached[BATT_INFO_MAX];
static bool healthd_msm_err_log_once;
static int8_t healthd_msm_log_en;
static int write_file_int(char const* path, int value)
{
@ -284,6 +286,11 @@ void healthd_board_mode_charger_set_backlight(bool en)
LOGV(CHGR_TAG, "set backlight status to %d\n", en);
}
static inline void get_healthd_log_status()
{
healthd_msm_log_en = property_get_bool("persist.healthd_msm.log_en", 1);
}
#define WAIT_BMS_READY_TIMES_MAX 200
#define WAIT_BMS_READY_INTERVAL_USEC 200000
void healthd_board_mode_charger_init()
@ -330,6 +337,7 @@ void healthd_board_mode_charger_init()
}
close(fd);
LOGV(CHGR_TAG, "Checking BMS SoC ready done %d!\n", bms_ready);
get_healthd_log_status();
}
static void healthd_batt_info_notify()
@ -454,6 +462,7 @@ void healthd_board_init(struct healthd_config*)
// use defaults
power_off_alarm_init();
healthd_batt_info_notify();
get_healthd_log_status();
}
static void healthd_store_batt_props(const struct android::BatteryProperties* props)
@ -546,5 +555,7 @@ int healthd_board_battery_update(struct android::BatteryProperties* props)
{
// return 0 to log periodic polled battery status to kernel log
healthd_store_batt_props(props);
if (healthd_msm_log_en)
return 0;
return 1;
}