include/linux/power/bq27xxx_battery.h

   1 #ifndef __LINUX_BQ27X00_BATTERY_H__
   2 #define __LINUX_BQ27X00_BATTERY_H__
   3
   4 enum bq27xxx_chip {
   5         BQ27000 = 1, /* bq27000, bq27200 */
   6         BQ27010, /* bq27010, bq27210 */
   7         BQ27500, /* bq27500, bq27510, bq27520 */
   8         BQ27530, /* bq27530, bq27531 */
   9         BQ27541, /* bq27541, bq27542, bq27546, bq27742 */
  10         BQ27545, /* bq27545 */
  11         BQ27421, /* bq27421, bq27425, bq27441, bq27621 */
  12 };
  13
  14 /**
  15  * struct bq27xxx_plaform_data - Platform data for bq27xxx devices
  16  * @name: Name of the battery.
  17  * @chip: Chip class number of this device.
  18  * @read: HDQ read callback.
  19  *      This function should provide access to the HDQ bus the battery is
  20  *      connected to.
  21  *      The first parameter is a pointer to the battery device, the second the
  22  *      register to be read. The return value should either be the content of
  23  *      the passed register or an error value.
  24  */
  25 struct bq27xxx_platform_data {
  26         const char *name;
  27         enum bq27xxx_chip chip;
  28         int (*read)(struct device *dev, unsigned int);
  29 };
  30
  31 struct bq27xxx_device_info;
  32 struct bq27xxx_access_methods {
  33         int (*read)(struct bq27xxx_device_info *di, u8 reg, bool single);
  34 };
  35
  36 struct bq27xxx_reg_cache {
  37         int temperature;
  38         int time_to_empty;
  39         int time_to_empty_avg;
  40         int time_to_full;
  41         int charge_full;
  42         int cycle_count;
  43         int capacity;
  44         int energy;
  45         int flags;
  46         int power_avg;
  47         int health;
  48 };
  49
  50 struct bq27xxx_device_info {
  51         struct device *dev;
  52         int id;
  53         enum bq27xxx_chip chip;
  54         const char *name;
  55         struct bq27xxx_access_methods bus;
  56         struct bq27xxx_reg_cache cache;
  57         int charge_design_full;
  58         unsigned long last_update;
  59         struct delayed_work work;
  60         struct power_supply *bat;
  61         struct mutex lock;
  62         u8 *regs;
  63 };
  64
  65 void bq27xxx_battery_update(struct bq27xxx_device_info *di);
  66 int bq27xxx_battery_setup(struct bq27xxx_device_info *di);
  67 void bq27xxx_battery_teardown(struct bq27xxx_device_info *di);
  68
  69 #endif