static int rmi_hid_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct rmi_transport_device *xport = NULL;
struct rmi_hid_data *data = NULL;
unsigned int connect_mask = HID_CONNECT_HIDRAW | HID_CONNECT_HIDDEV;
int ret;
dev_dbg(&hdev->dev, "%s\n", __func__);
xport = devm_kzalloc(&hdev->dev, sizeof(struct rmi_transport_device),
GFP_KERNEL);
if (!xport) {
ret = -ENOMEM;
goto err;
}
data = devm_kzalloc(&hdev->dev, sizeof(struct rmi_hid_data),
GFP_KERNEL);
if (!data) {
ret =-ENOMEM;
goto err;
}
data->xport = xport;
xport->data = data;
xport->dev = &hdev->dev;
xport->write_block = rmi_hid_write_block;
xport->read_block = rmi_hid_read_block;
xport->info.proto_type = RMI_PROTOCOL_HID;
xport->info.proto = transport_proto_name;
xport->post_reset = rmi_hid_post_reset;
hid_set_drvdata(hdev, xport);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err;
}
data->input_report_size =
(hdev->report_enum[HID_INPUT_REPORT]
.report_id_hash[RMI_ATTN_REPORT_ID]->size >> 3)
+ 1 /* report id */;
data->output_report_size =
(hdev->report_enum[HID_OUTPUT_REPORT]
.report_id_hash[RMI_WRITE_REPORT_ID]->size >> 3)
+ 1 /* report id */;
data->feature_report_size =
(hdev->report_enum[HID_FEATURE_REPORT]
.report_id_hash[RMI_SET_RMI_MODE_REPORT_ID]->size >> 3)
+ 1 /* report id */;
dev_dbg(&hdev->dev, "input report size %d\n", data->input_report_size);
dev_dbg(&hdev->dev, "output report size %d\n",
data->output_report_size);
dev_dbg(&hdev->dev, "feature report size %d\n",
data->feature_report_size);
data->input_queue = devm_kzalloc(&hdev->dev, data->input_report_size
* RMI_HID_INPUT_REPORT_QUEUE_LEN, GFP_KERNEL);
if (!data->input_queue) {
ret = -ENOMEM;
goto err;
}
data->writeReport = devm_kzalloc(&hdev->dev, data->output_report_size,
GFP_KERNEL);
if (!data->writeReport) {
ret = -ENOMEM;
goto err;
}
data->readReport = devm_kzalloc(&hdev->dev, data->input_report_size,
GFP_KERNEL);
if (!data->readReport) {
ret = -ENOMEM;
goto err;
}
data->attnReport = devm_kzalloc(&hdev->dev, data->input_report_size,
GFP_KERNEL);
if (!data->attnReport) {
ret = -ENOMEM;
goto err;
}
tp_platformdata.pm_data = hdev;
xport->dev->platform_data = &tp_platformdata;
#ifdef TOUCHPAD_WAKE_SYSTEM
if (tp_platformdata.f11_sensor_data[0].sensor_type == rmi_sensor_touchpad) {
device_init_wakeup(hdev->dev.parent, 1);
}
#endif
spin_lock_init(&data->input_queue_consumer_lock);
spin_lock_init(&data->input_queue_producer_lock);
data->input_queue_head = 0;
data->input_queue_tail = 0;
INIT_WORK(&data->attn_report_work, rmi_hid_attn_report_work);
INIT_WORK(&data->reset_work, rmi_hid_reset_work);
init_waitqueue_head(&data->wait);
mutex_init(&data->page_mutex);
ret = hid_hw_start(hdev, connect_mask);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err;
}
dev_dbg(&hdev->dev, "Opening low level driver\n");
hdev->ll_driver->open(hdev);
/* Allow incoming hid reports */
hid_device_io_start(hdev);
ret = rmi_hid_set_mode(hdev, RMI_HID_MODE_ATTN_REPORTS);
if (ret < 0) {
dev_err(&hdev->dev, "failed to set rmi mode\n");
goto rmi_read_failed;
}
ret = rmi_set_page(xport, 0);
if (ret < 0) {
dev_err(&hdev->dev, "failed to set page select to 0.\n");
goto rmi_read_failed;
}
ret = rmi_register_transport_device(xport);
if (ret) {
dev_err(&hdev->dev, "failed to register transport device at %s\n",
hdev->phys);
goto rmi_read_failed;
}
if (!xport->probe_succeeded) {
dev_err(&hdev->dev, "Probe failed in rmi_driver\n");
ret = -ENODEV;
goto rmi_driver_probe_failed;
}
set_bit(RMI_HID_STARTED, &data->flags);
if (IS_ENABLED(CONFIG_RMI4_DEBUG))
ret = setup_debugfs(xport->rmi_dev, data);
dev_info(&hdev->dev, "registered rmi hid driver at %s\n", hdev->phys);
return 0;
rmi_driver_probe_failed:
rmi_unregister_transport_device(xport);
rmi_read_failed:
hdev->ll_driver->close(hdev);
hid_hw_stop(hdev);
err:
return ret;
}
static int logi_dj_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct dj_receiver_dev *djrcv_dev;
int retval;
if (is_dj_device((struct dj_device *)hdev->driver_data))
return -ENODEV;
dbg_hid("%s called for ifnum %d\n", __func__,
intf->cur_altsetting->desc.bInterfaceNumber);
/* Ignore interfaces 0 and 1, they will not carry any data, dont create
* any hid_device for them */
if (intf->cur_altsetting->desc.bInterfaceNumber !=
LOGITECH_DJ_INTERFACE_NUMBER) {
dbg_hid("%s: ignoring ifnum %d\n", __func__,
intf->cur_altsetting->desc.bInterfaceNumber);
return -ENODEV;
}
/* Treat interface 2 */
djrcv_dev = kzalloc(sizeof(struct dj_receiver_dev), GFP_KERNEL);
if (!djrcv_dev) {
dev_err(&hdev->dev,
"%s:failed allocating dj_receiver_dev\n", __func__);
return -ENOMEM;
}
djrcv_dev->hdev = hdev;
INIT_WORK(&djrcv_dev->work, delayedwork_callback);
spin_lock_init(&djrcv_dev->lock);
if (kfifo_alloc(&djrcv_dev->notif_fifo,
DJ_MAX_NUMBER_NOTIFICATIONS * sizeof(struct dj_report),
GFP_KERNEL)) {
dev_err(&hdev->dev,
"%s:failed allocating notif_fifo\n", __func__);
kfree(djrcv_dev);
return -ENOMEM;
}
hid_set_drvdata(hdev, djrcv_dev);
/* Call to usbhid to fetch the HID descriptors of interface 2 and
* subsequently call to the hid/hid-core to parse the fetched
* descriptors, this will in turn create the hidraw and hiddev nodes
* for interface 2 of the receiver */
retval = hid_parse(hdev);
if (retval) {
dev_err(&hdev->dev,
"%s:parse of interface 2 failed\n", __func__);
goto hid_parse_fail;
}
if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, REPORT_ID_DJ_SHORT,
0, DJREPORT_SHORT_LENGTH - 1)) {
retval = -ENODEV;
goto hid_parse_fail;
}
/* Starts the usb device and connects to upper interfaces hiddev and
* hidraw */
retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (retval) {
dev_err(&hdev->dev,
"%s:hid_hw_start returned error\n", __func__);
goto hid_hw_start_fail;
}
retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
if (retval < 0) {
dev_err(&hdev->dev,
"%s:logi_dj_recv_switch_to_dj_mode returned error:%d\n",
__func__, retval);
goto switch_to_dj_mode_fail;
}
/* This is enabling the polling urb on the IN endpoint */
retval = hdev->ll_driver->open(hdev);
if (retval < 0) {
dev_err(&hdev->dev, "%s:hdev->ll_driver->open returned "
"error:%d\n", __func__, retval);
goto llopen_failed;
}
/* Allow incoming packets to arrive: */
hid_device_io_start(hdev);
retval = logi_dj_recv_query_paired_devices(djrcv_dev);
if (retval < 0) {
dev_err(&hdev->dev, "%s:logi_dj_recv_query_paired_devices "
"error:%d\n", __func__, retval);
goto logi_dj_recv_query_paired_devices_failed;
}
return retval;
logi_dj_recv_query_paired_devices_failed:
hdev->ll_driver->close(hdev);
llopen_failed:
switch_to_dj_mode_fail:
hid_hw_stop(hdev);
hid_hw_start_fail:
hid_parse_fail:
kfifo_free(&djrcv_dev->notif_fifo);
kfree(djrcv_dev);
hid_set_drvdata(hdev, NULL);
return retval;
}
static int hid_time_probe(struct platform_device *pdev)
{
int ret = 0;
struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
struct hid_time_state *time_state = devm_kzalloc(&pdev->dev,
sizeof(struct hid_time_state), GFP_KERNEL);
if (time_state == NULL)
return -ENOMEM;
platform_set_drvdata(pdev, time_state);
spin_lock_init(&time_state->lock_last_time);
init_completion(&time_state->comp_last_time);
time_state->common_attributes.hsdev = hsdev;
time_state->common_attributes.pdev = pdev;
ret = hid_sensor_parse_common_attributes(hsdev,
HID_USAGE_SENSOR_TIME,
&time_state->common_attributes);
if (ret) {
dev_err(&pdev->dev, "failed to setup common attributes!\n");
return ret;
}
ret = hid_time_parse_report(pdev, hsdev, HID_USAGE_SENSOR_TIME,
time_state);
if (ret) {
dev_err(&pdev->dev, "failed to setup attributes!\n");
return ret;
}
time_state->callbacks.send_event = hid_time_proc_event;
time_state->callbacks.capture_sample = hid_time_capture_sample;
time_state->callbacks.pdev = pdev;
ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_TIME,
&time_state->callbacks);
if (ret < 0) {
dev_err(&pdev->dev, "register callback failed!\n");
return ret;
}
ret = sensor_hub_device_open(hsdev);
if (ret) {
dev_err(&pdev->dev, "failed to open sensor hub device!\n");
goto err_open;
}
/*
* Enable HID input processing early in order to be able to read the
* clock already in devm_rtc_device_register().
*/
hid_device_io_start(hsdev->hdev);
time_state->rtc = devm_rtc_device_register(&pdev->dev,
"hid-sensor-time", &hid_time_rtc_ops,
THIS_MODULE);
if (IS_ERR_OR_NULL(time_state->rtc)) {
hid_device_io_stop(hsdev->hdev);
ret = time_state->rtc ? PTR_ERR(time_state->rtc) : -ENODEV;
time_state->rtc = NULL;
dev_err(&pdev->dev, "rtc device register failed!\n");
goto err_rtc;
}
return ret;
err_rtc:
sensor_hub_device_close(hsdev);
err_open:
sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_TIME);
return ret;
}
