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| author | Baolin Wang <baolin.wang@linaro.org> | 2018-11-05 15:39:09 +0800 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2018-11-09 22:55:46 +0100 |
| commit | 3afb50d7125bcdbf71df843134e96ceffc78c8b8 (patch) | |
| tree | 9e5c23b56b109eb8361d83e47a44b80511de95d8 /include/linux/power_supply.h | |
| parent | 428527b3e6e1531dcde5c47f0553a9833e1054c8 (diff) | |
| download | lwn-3afb50d7125bcdbf71df843134e96ceffc78c8b8.tar.gz lwn-3afb50d7125bcdbf71df843134e96ceffc78c8b8.zip | |
power: supply: core: Add some helpers to use the battery OCV capacity table
We have introduced some battery properties to present the OCV table
temperatures and OCV capacity table values. Thus this patch add OCV
temperature and OCV table for battery information, as well as providing
some helper functions to use the OCV capacity table for users.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'include/linux/power_supply.h')
| -rw-r--r-- | include/linux/power_supply.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index d089566828be..84fe93f674a0 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -309,6 +309,13 @@ struct power_supply_info { int use_for_apm; }; +struct power_supply_battery_ocv_table { + int ocv; /* microVolts */ + int capacity; /* percent */ +}; + +#define POWER_SUPPLY_OCV_TEMP_MAX 20 + /* * This is the recommended struct to manage static battery parameters, * populated by power_supply_get_battery_info(). Most platform drivers should @@ -327,6 +334,9 @@ struct power_supply_battery_info { int constant_charge_current_max_ua; /* microAmps */ int constant_charge_voltage_max_uv; /* microVolts */ int factory_internal_resistance_uohm; /* microOhms */ + int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */ + struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX]; + int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX]; }; extern struct atomic_notifier_head power_supply_notifier; @@ -350,6 +360,15 @@ devm_power_supply_get_by_phandle(struct device *dev, const char *property) extern int power_supply_get_battery_info(struct power_supply *psy, struct power_supply_battery_info *info); +extern void power_supply_put_battery_info(struct power_supply *psy, + struct power_supply_battery_info *info); +extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table, + int table_len, int ocv); +extern struct power_supply_battery_ocv_table * +power_supply_find_ocv2cap_table(struct power_supply_battery_info *info, + int temp, int *table_len); +extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info, + int ocv, int temp); extern void power_supply_changed(struct power_supply *psy); extern int power_supply_am_i_supplied(struct power_supply *psy); extern int power_supply_set_input_current_limit_from_supplier( |