static int logi_dj_ll_input_event(struct input_dev *dev, unsigned int type,
unsigned int code, int value)
{
/* Sent by the input layer to handle leds and Force Feedback */
struct hid_device *dj_hiddev = input_get_drvdata(dev);
struct dj_device *dj_dev = dj_hiddev->driver_data;
struct dj_receiver_dev *djrcv_dev =
dev_get_drvdata(dj_hiddev->dev.parent);
struct hid_device *dj_rcv_hiddev = djrcv_dev->hdev;
struct hid_report_enum *output_report_enum;
struct hid_field *field;
struct hid_report *report;
unsigned char *data;
int offset;
dbg_hid("%s: %s, type:%d | code:%d | value:%d\n",
__func__, dev->phys, type, code, value);
if (type != EV_LED)
return -1;
offset = hidinput_find_field(dj_hiddev, type, code, &field);
if (offset == -1) {
dev_warn(&dev->dev, "event field not found\n");
return -1;
}
hid_set_field(field, offset, value);
data = hid_alloc_report_buf(field->report, GFP_KERNEL);
if (!data) {
dev_warn(&dev->dev, "failed to allocate report buf memory\n");
return -1;
}
hid_output_report(field->report, &data[0]);
output_report_enum = &dj_rcv_hiddev->report_enum[HID_OUTPUT_REPORT];
report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT];
hid_set_field(report->field[0], 0, dj_dev->device_index);
hid_set_field(report->field[0], 1, REPORT_TYPE_LEDS);
hid_set_field(report->field[0], 2, data[1]);
hid_hw_request(dj_rcv_hiddev, report, HID_REQ_SET_REPORT);
kfree(data);
return 0;
}
static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
{
struct mt_device *td = hid_get_drvdata(hdev);
int ret, size = hid_report_len(report);
u8 *buf;
/*
* Do not fetch the feature report if the device has been explicitly
* marked as non-capable.
*/
if (td->initial_quirks & HID_QUIRK_NO_INIT_REPORTS)
return;
buf = hid_alloc_report_buf(report, GFP_KERNEL);
if (!buf)
return;
ret = hid_hw_raw_request(hdev, report->id, buf, size,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0) {
dev_warn(&hdev->dev, "failed to fetch feature %d\n",
report->id);
} else {
ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
size, 0);
if (ret)
dev_warn(&hdev->dev, "failed to report feature\n");
}
kfree(buf);
}
static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
{
struct mt_device *td = hid_get_drvdata(hdev);
int ret, size = hid_report_len(report);
u8 *buf;
/*
* Only fetch the feature report if initial reports are not already
* been retrieved. Currently this is only done for Windows 8 touch
* devices.
*/
if (!(hdev->quirks & HID_QUIRK_NO_INIT_REPORTS))
return;
if (td->mtclass.name != MT_CLS_WIN_8)
return;
buf = hid_alloc_report_buf(report, GFP_KERNEL);
if (!buf)
return;
ret = hid_hw_raw_request(hdev, report->id, buf, size,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0) {
dev_warn(&hdev->dev, "failed to fetch feature %d\n",
report->id);
} else {
ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
size, 0);
if (ret)
dev_warn(&hdev->dev, "failed to report feature\n");
}
kfree(buf);
}
