static int valve_sc_send_request(struct valve_sc_device *sc, u8 report_id,
const u8 *params, int params_size,
u8 *answer, int *answer_size)
{
int ret;
struct hid_device *hdev = sc->hdev;
u8 report[65];
if (params_size > 62)
return -EINVAL;
report[0] = 0;
report[1] = report_id;
report[2] = params_size;
memcpy(&report[3], params, params_size);
ret = hid_hw_raw_request(hdev, 0, report, sizeof(report),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret < 0) {
hid_warn(hdev, "Error sending feature: %d\n", -ret);
return ret;
}
if (ret != sizeof (report)) {
hid_warn(hdev, "Sent incomplete feature.\n");
return -EIO;
}
if (!answer)
return 0;
msleep(50);
ret = hid_hw_raw_request(hdev, 0, report, sizeof(report),
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0) {
hid_warn(hdev, "Error receiving feature: %d\n", -ret);
return ret;
}
if (ret != sizeof (report)) {
hid_warn(hdev, "Received incomplete feature.\n");
return -EIO;
}
if (report[1] != report_id) {
hid_warn(hdev, "Invalid feature id.\n");
return -EIO;
}
*answer_size = report[2];
memcpy(answer, &report[3], *answer_size);
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 int logi_dj_ll_raw_request(struct hid_device *hid,
unsigned char reportnum, __u8 *buf,
size_t count, unsigned char report_type,
int reqtype)
{
struct dj_device *djdev = hid->driver_data;
struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;
u8 *out_buf;
int ret;
if (buf[0] != REPORT_TYPE_LEDS)
return -EINVAL;
out_buf = kzalloc(DJREPORT_SHORT_LENGTH, GFP_ATOMIC);
if (!out_buf)
return -ENOMEM;
if (count > DJREPORT_SHORT_LENGTH - 2)
count = DJREPORT_SHORT_LENGTH - 2;
out_buf[0] = REPORT_ID_DJ_SHORT;
out_buf[1] = djdev->device_index;
memcpy(out_buf + 2, buf, count);
ret = hid_hw_raw_request(djrcv_dev->hdev, out_buf[0], out_buf,
DJREPORT_SHORT_LENGTH, report_type, reqtype);
kfree(out_buf);
return ret;
}
/* Send a config command to the keyboard */
static int lenovo_send_cmd_cptkbd(struct hid_device *hdev,
unsigned char byte2, unsigned char byte3)
{
int ret;
unsigned char *buf;
buf = kzalloc(3, GFP_KERNEL);
if (!buf)
return -ENOMEM;
buf[0] = 0x18;
buf[1] = byte2;
buf[2] = byte3;
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_CUSBKBD:
ret = hid_hw_raw_request(hdev, 0x13, buf, 3,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
break;
case USB_DEVICE_ID_LENOVO_CBTKBD:
ret = hid_hw_output_report(hdev, buf, 3);
break;
default:
ret = -EINVAL;
break;
}
kfree(buf);
return ret < 0 ? ret : 0; /* BT returns 0, USB returns sizeof(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);
}
/* Send a config command to the keyboard */
static int lenovo_send_cmd_cptkbd(struct hid_device *hdev,
unsigned char byte2, unsigned char byte3)
{
int ret;
unsigned char buf[] = {0x18, byte2, byte3};
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_CUSBKBD:
ret = hid_hw_raw_request(hdev, 0x13, buf, sizeof(buf),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
break;
case USB_DEVICE_ID_LENOVO_CBTKBD:
ret = hid_hw_output_report(hdev, buf, sizeof(buf));
break;
default:
ret = -EINVAL;
break;
}
return ret < 0 ? ret : 0; /* BT returns 0, USB returns sizeof(buf) */
}
static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
__u8 iface_num = iface->cur_altsetting->desc.bInterfaceNumber;
unsigned int connect_mask = HID_CONNECT_DEFAULT;
struct lg_drv_data *drv_data;
int ret;
/* G29 only work with the 1st interface */
if ((hdev->product == USB_DEVICE_ID_LOGITECH_G29_WHEEL) &&
(iface_num != 0)) {
dbg_hid("%s: ignoring ifnum %d\n", __func__, iface_num);
return -ENODEV;
}
drv_data = kzalloc(sizeof(struct lg_drv_data), GFP_KERNEL);
if (!drv_data) {
hid_err(hdev, "Insufficient memory, cannot allocate driver data\n");
return -ENOMEM;
}
drv_data->quirks = id->driver_data;
hid_set_drvdata(hdev, (void *)drv_data);
if (drv_data->quirks & LG_NOGET)
hdev->quirks |= HID_QUIRK_NOGET;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err_free;
}
if (drv_data->quirks & (LG_FF | LG_FF2 | LG_FF3 | LG_FF4))
connect_mask &= ~HID_CONNECT_FF;
ret = hid_hw_start(hdev, connect_mask);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
/* Setup wireless link with Logitech Wii wheel */
if (hdev->product == USB_DEVICE_ID_LOGITECH_WII_WHEEL) {
unsigned char buf[] = { 0x00, 0xAF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret >= 0) {
/* insert a little delay of 10 jiffies ~ 40ms */
wait_queue_head_t wait;
init_waitqueue_head (&wait);
wait_event_interruptible_timeout(wait, 0,
msecs_to_jiffies(40));
/* Select random Address */
buf[1] = 0xB2;
get_random_bytes(&buf[2], 2);
ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
}
}
if (drv_data->quirks & LG_FF)
ret = lgff_init(hdev);
else if (drv_data->quirks & LG_FF2)
ret = lg2ff_init(hdev);
else if (drv_data->quirks & LG_FF3)
ret = lg3ff_init(hdev);
else if (drv_data->quirks & LG_FF4)
ret = lg4ff_init(hdev);
if (ret)
goto err_free;
return 0;
err_free:
kfree(drv_data);
return ret;
}
static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
unsigned int connect_mask = HID_CONNECT_DEFAULT;
struct lg_drv_data *drv_data;
int ret;
drv_data = kzalloc(sizeof(struct lg_drv_data), GFP_KERNEL);
if (!drv_data) {
hid_err(hdev, "Insufficient memory, cannot allocate driver data\n");
return -ENOMEM;
}
drv_data->quirks = id->driver_data;
hid_set_drvdata(hdev, (void *)drv_data);
if (drv_data->quirks & LG_NOGET)
hdev->quirks |= HID_QUIRK_NOGET;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err_free;
}
if (drv_data->quirks & (LG_FF | LG_FF2 | LG_FF3 | LG_FF4))
connect_mask &= ~HID_CONNECT_FF;
ret = hid_hw_start(hdev, connect_mask);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
/* Setup wireless link with Logitech Wii wheel */
if (hdev->product == USB_DEVICE_ID_LOGITECH_WII_WHEEL) {
unsigned char buf[] = { 0x00, 0xAF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret >= 0) {
/* insert a little delay of 10 jiffies ~ 40ms */
wait_queue_head_t wait;
init_waitqueue_head (&wait);
wait_event_interruptible_timeout(wait, 0, 10);
/* Select random Address */
buf[1] = 0xB2;
get_random_bytes(&buf[2], 2);
ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
}
}
if (drv_data->quirks & LG_FF)
lgff_init(hdev);
if (drv_data->quirks & LG_FF2)
lg2ff_init(hdev);
if (drv_data->quirks & LG_FF3)
lg3ff_init(hdev);
if (drv_data->quirks & LG_FF4)
lg4ff_init(hdev);
return 0;
err_free:
kfree(drv_data);
return ret;
}
