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hid-input/battery: deal with both FEATURE and INPUT report batteries 

Some devices seem to report batteries as FEATUREs, others as INPUTs.

Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
This commit is contained in:
Jeremy Fitzhardinge 2011-12-02 11:18:45 -08:00
parent bbc21cfd55
commit fb8ac91b4d
2 changed files with 14 additions and 7 deletions
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20
drivers/hid/hid-input.c
View File

@ -312,7 +312,6 @@ static int hidinput_get_battery_property(struct power_supply *psy,
int ret = 0;
int ret_rep;
__u8 buf[2] = {};
unsigned char report_number = dev->battery_report_id;
switch (prop) {
case POWER_SUPPLY_PROP_PRESENT:
@ -321,8 +320,9 @@ static int hidinput_get_battery_property(struct power_supply *psy,
break;
case POWER_SUPPLY_PROP_CAPACITY:
ret_rep = dev->hid_get_raw_report(dev, report_number,
buf, sizeof(buf), HID_FEATURE_REPORT);
ret_rep = dev->hid_get_raw_report(dev, dev->battery_report_id,
buf, sizeof(buf),
dev->battery_report_type);
if (ret_rep != 2) {
ret = -EINVAL;
break;
@ -351,7 +351,9 @@ static int hidinput_get_battery_property(struct power_supply *psy,
return ret;
}
static void hidinput_setup_battery(struct hid_device *dev, unsigned id, s32 min, s32 max)
static void hidinput_setup_battery(struct hid_device *dev,
unsigned report_type, unsigned report_id,
s32 min, s32 max)
{
struct power_supply *battery = &dev->battery;
int ret;
@ -379,7 +381,8 @@ static void hidinput_setup_battery(struct hid_device *dev, unsigned id, s32 min,
dev->battery_min = min;
dev->battery_max = max;
dev->battery_report_id = id;
dev->battery_report_type = report_type;
dev->battery_report_id = report_id;
ret = power_supply_register(&dev->dev, battery);
if (ret != 0) {
@ -399,7 +402,9 @@ static void hidinput_cleanup_battery(struct hid_device *dev)
dev->battery.name = NULL;
}
#else /* !CONFIG_HID_BATTERY_STRENGTH */
static void hidinput_setup_battery(struct hid_device *dev, unsigned id, s32 min, s32 max)
static void hidinput_setup_battery(struct hid_device *dev,
unsigned report_type, unsigned report_id,
s32 min, s32 max)
{
}
@ -769,6 +774,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
case HID_UP_GENDEVCTRLS:
if ((usage->hid & HID_USAGE) == 0x20) { /* Battery Strength */
hidinput_setup_battery(device,
HID_INPUT_REPORT,
field->report->id,
field->logical_minimum,
field->logical_maximum);
@ -1052,7 +1058,7 @@ static void report_features(struct hid_device *hid)
if (((rep->field[i]->usage + j)->hid & HID_USAGE_PAGE) == HID_UP_GENDEVCTRLS &&
((rep->field[i]->usage + j)->hid & HID_USAGE) == 0x20) {
hidinput_setup_battery(hid,
rep->id,
HID_FEATURE_REPORT, rep->id,
rep->field[i]->logical_minimum,
rep->field[i]->logical_maximum);
}

1
include/linux/hid.h
View File

@ -496,6 +496,7 @@ struct hid_device { /* device report descriptor */
__s32 battery_min;
__s32 battery_max;
__s32 battery_val;
__s32 battery_report_type;
__s32 battery_report_id;
#endif