scottk/OpenCellular
1
0
Fork 0
mirror of https://github.com/Telecominfraproject/OpenCellular.git synced 2025-12-29 18:11:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add system_can_boot_ap API

Browse Source 
This API checks battery charge level and current power supply
to determine whether the AP has enough power to boot or not.

BUG=b:38462249
BRANCH=none
TEST=make buildall

Change-Id: I489f7ea92f230701b8f18c94d3e698aad90b4a03
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/517272
This commit is contained in:
Daisuke Nojiri
2017-05-26 14:10:22 -07:00
committed by chrome-bot
parent 5ce3d32538
commit cdaca7c97e
2 changed files with 38 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
common/system.c
View File

@@ -4,6 +4,8 @@
*/
/* System module for Chrome EC : common functions */
#include "battery.h"
#include "charge_manager.h"
#include "clock.h"
#include "common.h"
#include "console.h"
@@ -1290,3 +1292,31 @@ int host_command_reboot(struct host_cmd_handler_args *args)
DECLARE_HOST_COMMAND(EC_CMD_REBOOT_EC,
host_command_reboot,
EC_VER_MASK(0));
int system_can_boot_ap(void)
{
int power_good = 0;
int soc = -1;
int pow = -1;
#ifdef CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON
/* Require a minimum battery level to power on. If battery isn't
* present, battery_state_of_charge_abs returns false. */
if (battery_state_of_charge_abs(&soc) == EC_SUCCESS &&
soc >= CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON)
power_good = 1;
#endif
#ifdef CONFIG_CHARGER_LIMIT_POWER_THRESH_CHG_MW
if (!power_good) {
pow = charge_manager_get_power_limit_uw() / 1000;
if (pow >= CONFIG_CHARGER_LIMIT_POWER_THRESH_CHG_MW)
power_good = 1;
}
#endif
if (!power_good)
CPRINTS("Not enough power to boot AP: charge=%d power=%d\n",
soc, pow);
return power_good;
}

8
include/system.h
View File

@@ -529,4 +529,12 @@ static inline void system_print_extended_version_info(void)
{
}
#endif
/**
* Check if the system can supply enough power to boot AP
*
* @return true if the system is powered enough or false otherwise
*/
int system_can_boot_ap(void);
#endif /* __CROS_EC_SYSTEM_H */