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power: battery_charger: add ioctl for charging input current

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This commit is contained in:
Juha Niskanen
2017-06-06 06:56:50 -06:00
committed by Gregory Nutt
parent 9120a78ee3
commit e577072790
4 changed files with 92 additions and 35 deletions
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include/nuttx/power/battery_charger.h
+20 -7
View File
@@ -46,7 +46,6 @@
#include <stdbool.h>
#include <semaphore.h>
#include <fixedmath.h>
#ifdef CONFIG_BATTERY_CHARGER
@@ -81,8 +80,18 @@
* Input value: A pointer to type bool.
* BATIOC_VOLTAGE - Define the wished charger voltage to charge the battery.
* Input value: An int defining the voltage value.
* BATIOC_CURRENT - Define the wished charger current to charge the battery.
* Input value: An int defining the current value.
* BATIOC_INPUT_CURRENT - Define the input current limit of power supply.
* Input value: An int defining the input current limit value.
*/
/* Special input values for BATIOC_INPUT_CURRENT that may optionally
* be supported by lower-half driver:
*/
#define BATTERY_INPUT_CURRENT_EXT_LIM (-1) /* External input current limit */
/****************************************************************************
* Public Types
****************************************************************************/
@@ -127,7 +136,7 @@ struct battery_charger_operations_s
int (*health)(struct battery_charger_dev_s *dev, int *health);
/* Return true if the batter is online */
/* Return true if the battery is online */
int (*online)(struct battery_charger_dev_s *dev, bool *status);
@@ -138,6 +147,10 @@ struct battery_charger_operations_s
/* Set the wished current rate used for charging */
int (*current)(struct battery_charger_dev_s *dev, int value);
/* Set the input current limit of power supply */
int (*input_current)(struct battery_charger_dev_s *dev, int value);
};
/* This structure defines the battery driver state structure */
@@ -201,27 +214,27 @@ int battery_charger_register(FAR const char *devpath,
* CONFIG_BATTERY_CHARGER - Upper half battery fuel gauge driver support
* CONFIG_I2C - I2C support
* CONFIG_I2C_BQ2425X - And the driver must be explictly selected.
* CONFIG_I2C_BQ24250 or CONFIG_I2C_BQ24251 - The driver must know which
* chip is on the board in order to scale the voltage correctly.
*
* Input Parameters:
* i2c - An instance of the I2C interface to use to communicate with
* the BQ2425X
* addr - The I2C address of the BQ2425X (Better be 0x6A).
* frequency - The I2C frequency
* current - The input current our power-supply can offer to charger
*
* Returned Value:
* A pointer to the initializeed battery driver instance. A NULL pointer
* A pointer to the initialized battery driver instance. A NULL pointer
* is returned on a failure to initialize the BQ2425X lower half.
*
****************************************************************************/
#if defined(CONFIG_I2C) && defined(CONFIG_I2C_BQ2425X)
struct i2c_master_s; /* Forward reference */
struct i2c_master_s;
FAR struct battery_charger_dev_s *bq2425x_initialize(FAR struct i2c_master_s *i2c,
uint8_t addr,
uint32_t frequency);
uint32_t frequency,
int current);
#endif
#undef EXTERN
include/nuttx/power/battery_ioctl.h
+7 -6
View File
@@ -48,11 +48,12 @@
* Pre-processor Definitions
****************************************************************************/
#define BATIOC_STATE _BATIOC(0x0001)
#define BATIOC_HEALTH _BATIOC(0x0002)
#define BATIOC_ONLINE _BATIOC(0x0003)
#define BATIOC_VOLTAGE _BATIOC(0x0004)
#define BATIOC_CURRENT _BATIOC(0x0005)
#define BATIOC_CAPACITY _BATIOC(0x0006)
#define BATIOC_STATE _BATIOC(0x0001)
#define BATIOC_HEALTH _BATIOC(0x0002)
#define BATIOC_ONLINE _BATIOC(0x0003)
#define BATIOC_VOLTAGE _BATIOC(0x0004)
#define BATIOC_CURRENT _BATIOC(0x0005)
#define BATIOC_INPUT_CURRENT _BATIOC(0x0006)
#define BATIOC_CAPACITY _BATIOC(0x0007)
#endif /* __INCLUDE_NUTTX_POWER_BATTERY_IOCTL_H */