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);
}
static int gfrm_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
unsigned long hdev_type = (unsigned long) hid_get_drvdata(hdev);
int ret = 0;
if (hdev_type != GFRM100)
return 0;
if (size < 2 || data[0] != GFRM100_SEARCH_KEY_REPORT_ID)
return 0;
/*
* Convert GFRM100 Search key reports into Consumer.0221 (Key.Search)
* reports. Ignore audio data.
*/
switch (data[1]) {
case GFRM100_SEARCH_KEY_DOWN:
ret = hid_report_raw_event(hdev, HID_INPUT_REPORT, search_key_dn,
sizeof(search_key_dn), 1);
break;
case GFRM100_SEARCH_KEY_AUDIO_DATA:
break;
case GFRM100_SEARCH_KEY_UP:
ret = hid_report_raw_event(hdev, HID_INPUT_REPORT, search_key_up,
sizeof(search_key_up), 1);
break;
default:
break;
}
return (ret < 0) ? ret : -1;
}
static int px_raw_event(struct hid_device *hid, struct hid_report *report,
u8 *data, int size)
{
int idx = size;
switch (report->id) {
case 0: /* keyboard input */
/*
* Convert in-band modifier key values into out of band
* modifier bits and pull the key strokes from the report.
* Thus a report data set which looked like:
*
* [00][00][E0][30][00][00][00][00]
* (no modifier bits + "Left Shift" key + "1" key)
*
* Would be converted to:
*
* [01][00][00][30][00][00][00][00]
* (Left Shift modifier bit + "1" key)
*
* As long as it's in the size range, the upper level
* drivers don't particularly care if there are in-band
* 0-valued keys, so they don't stop parsing.
*/
while (--idx > 1) {
if (data[idx] < 0xE0 || data[idx] > 0xE7)
continue;
data[0] |= (1 << (data[idx] - 0xE0));
data[idx] = 0;
}
hid_report_raw_event(hid, HID_INPUT_REPORT, data, size, 0);
return 1;
default: /* unknown report */
/* Unknown report type; pass upstream */
hid_info(hid, "unknown report type %d\n", report->id);
break;
}
return 0;
}
static int px_raw_event(struct hid_device *hid, struct hid_report *report,
u8 *data, int size)
{
int idx = size;
switch (report->id) {
case 0:
while (--idx > 1) {
if (data[idx] < 0xE0 || data[idx] > 0xE7)
continue;
data[0] |= (1 << (data[idx] - 0xE0));
data[idx] = 0;
}
hid_report_raw_event(hid, HID_INPUT_REPORT, data, size, 0);
return 1;
default:
hid_info(hid, "unknown report type %d\n", report->id);
break;
}
return 0;
}
