diff options
Diffstat (limited to 'board/nyan/battery.c')
| -rw-r--r-- | board/nyan/battery.c | 43 |
1 files changed, 39 insertions, 4 deletions
diff --git a/board/nyan/battery.c b/board/nyan/battery.c index 6bd445fdf4..7ebfd594da 100644 --- a/board/nyan/battery.c +++ b/board/nyan/battery.c @@ -30,6 +30,39 @@ struct battery_device { int support_cut_off; }; +/* + * Used for the case that battery cannot be detected, such as the pre-charge + * case. In this case, we need to provide the battery with the enough voltage + * (usually the highest voltage among batteries, but the smallest precharge + * current). This should be as conservative as possible. + */ +static struct battery_info info_precharge = { + /* + * Design voltage + * max = 8.4V + * normal = 7.4V + * min = 6.0V + */ + .voltage_max = 12600, /* the max voltage among batteries */ + .voltage_normal = 11100, + .voltage_min = 9000, + + /* Pre-charge current: I <= 0.01C */ + .precharge_current = 64, /* mA, the min current among batteries */ + + /* + * Operational temperature range + * 0 <= T_charge <= 50 deg C + * -20 <= T_discharge <= 60 deg C + */ + .start_charging_min_c = 0, + .start_charging_max_c = 50, + .charging_min_c = 0, + .charging_max_c = 50, + .discharging_min_c = 0, + .discharging_max_c = 60, +}; + static struct battery_info info_2s = { /* * Design voltage @@ -204,16 +237,16 @@ const struct battery_info *battery_get_info(void) if (battery_manufacturer_name(manuf, sizeof(manuf))) { CPRINTF("[%T Failed to get MANUF name]\n"); - return NULL; + return &info_precharge; } if (battery_device_name(device, sizeof(device))) { CPRINTF("[%T Failed to get DEVICE name]\n"); - return NULL; + return &info_precharge; } if (battery_design_voltage((int *)&design_mv)) { CPRINTF("[%T Failed to get DESIGN_VOLTAGE]\n"); - return NULL; + return &info_precharge; } for (i = 0; i < ARRAY_SIZE(support_batteries); ++i) { @@ -228,7 +261,9 @@ const struct battery_info *battery_get_info(void) } } - return NULL; + CPRINTF("[%T un-recognized battery Manuf:%s, Device=%s]\n", + manuf, device); + return &info_precharge; } int battery_command_cut_off(struct host_cmd_handler_args *args) |