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Simplify upper-half battery driver

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4323 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
2012-01-22 19:22:51 +00:00
parent 80ce244ce1
commit 8a4e17b865
3 changed files with 66 additions and 60 deletions
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nuttx/include/nuttx/power/battery.h
+18 -13
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@@ -44,6 +44,8 @@
#include <nuttx/config.h>
#include <nuttx/ioctl.h>
#include <semaphore.h>
#ifdef CONFIG_BATTERY
/****************************************************************************
@@ -99,33 +101,36 @@ enum battery_status_e
/* This structure defines the lower half battery interface */
struct battery_lower_s;
struct battery_dev_s;
struct battery_operations_s
{
/* Return the current battery state */
enum battery_status_e state(struct battery_lower_s *lower);
enum battery_status_e state(struct battery_dev_s *dev);
/* Return true if the batter is online */
bool online(struct battery_lower_s *lower);
bool online(struct battery_dev_s *dev);
/* Current battery voltage */
int voltage(struct battery_lower_s *lower);
int voltage(struct battery_dev_s *dev);
/* Battery capacity */
int capacity(struct battery_lower_s *lower);
int capacity(struct battery_dev_s *dev);
};
/* This structure defines the lower half battery driver state structure */
/* This structure defines the battery driver state structure */
struct battery_lower_s
struct battery_dev_s
{
FAR const struct battery_operations_s *ops; /* Battery operations */
/* Fields required by the upper-half driver */
/* Data fields specific to the lower half driver may follow */
FAR const struct battery_operations_s *ops; /* Battery operations */
sem_t batsem; /* Enforce mutually exclusive access */
/* Data fields specific to the lower-half driver may follow */
};
/****************************************************************************
@@ -154,7 +159,7 @@ extern "C" {
* Input parameters:
* devpath - The location in the pseudo-filesystem to create the driver.
* Recommended standard is "/dev/bat0", "/dev/bat1", etc.
* lower - The lower half battery state.
* dev - An instance of the battery state structure .
*
* Returned value:
* Zero on success or a negated errno value on failure.
@@ -162,7 +167,7 @@ extern "C" {
****************************************************************************/
EXTERN int battery_register(FAR const char *devpath,
FAR struct battery_lower_s *lower);
FAR struct battery_dev_s *dev);
/****************************************************************************
* Name: max1704x_initialize
@@ -182,13 +187,13 @@ EXTERN int battery_register(FAR const char *devpath,
* addr - The I2C address of the MAX1704x.
*
* Returned Value:
* A pointer to the intialized lower-half driver instance. A NULL pointer
* A pointer to the intialized battery driver instance. A NULL pointer
* is returned on a failure to initialize the MAX1704x lower half.
*
****************************************************************************/
#if defined(CONFIG_I2C) && defined(CONFIG_I2C_MAX1704X)
EXTERN FAR struct battery_lower_s *
EXTERN FAR struct battery_dev_s *
max1704x_initialize(FAR struct i2c_dev_s *i2c, uint8_t addr);
#endif