diff options
Diffstat (limited to 'drivers/power/twl6030_bci_battery.c')
| -rw-r--r-- | drivers/power/twl6030_bci_battery.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/power/twl6030_bci_battery.c b/drivers/power/twl6030_bci_battery.c index 29c4fd1..7106ed2 100644 --- a/drivers/power/twl6030_bci_battery.c +++ b/drivers/power/twl6030_bci_battery.c @@ -328,6 +328,22 @@ struct twl6030_bci_device_info { unsigned int min_vbus_val; }; +/* Battery capacity estimation table */ +struct batt_capacity_chart { + int volt; + unsigned int cap; +}; + +static struct batt_capacity_chart volt_cap_table[] = { + { .volt = 3345, .cap = 7 }, + { .volt = 3450, .cap = 15 }, + { .volt = 3500, .cap = 30 }, + { .volt = 3600, .cap = 50 }, + { .volt = 3650, .cap = 70 }, + { .volt = 3780, .cap = 85 }, + { .volt = 3850, .cap = 95 }, +}; + static BLOCKING_NOTIFIER_HEAD(notifier_list); extern u32 wakeup_timer_seconds; @@ -1616,6 +1632,19 @@ static int twl6030_usb_autogate_charger(struct twl6030_bci_device_info *di) return ret; } +static int capacity_lookup(int volt) +{ + int i, table_size; + table_size = ARRAY_SIZE(volt_cap_table); + + for (i = 1; i < table_size; i++) { + if (volt < volt_cap_table[i].volt) + break; + } + + return volt_cap_table[i-1].cap; +} + static int capacity_changed(struct twl6030_bci_device_info *di) { int curr_capacity = di->capacity; |