static int rmi_spi_remove(struct spi_device *spi)
{
struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
rmi_unregister_transport_device(&rmi_spi->xport);
return 0;
}
static int rmi_smb_remove(struct i2c_client *client)
{
struct rmi_smb_xport *rmi_smb = i2c_get_clientdata(client);
rmi_unregister_transport_device(&rmi_smb->xport);
return 0;
}
static void rmi_hid_remove(struct hid_device *hdev)
{
struct rmi_transport_device *xport = hid_get_drvdata(hdev);
struct rmi_hid_data * hdata = xport->data;
clear_bit(RMI_HID_STARTED, &hdata->flags);
cancel_work_sync(&hdata->attn_report_work);
cancel_work_sync(&hdata->reset_work);
if (IS_ENABLED(CONFIG_RMI4_DEBUG))
teardown_debugfs(xport->data);
rmi_unregister_transport_device(xport);
hdev->ll_driver->close(hdev);
hid_hw_stop(hdev);
}
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;
}
