platform/chrome/cros_ec_ishtp.c

74 #define cl_data_to_dev(client_data) ishtp_device((client_data)->cl_device)
144 	struct ishtp_cl_data *client_data =
147 	cros_ec_irq_thread(0, client_data->ec_dev);
153  * @client_data: Client data instance
163 static int ish_send(struct ishtp_cl_data *client_data,
170 	struct ishtp_cl *cros_ish_cl = client_data->cros_ish_cl;
172 	dev_dbg(cl_data_to_dev(client_data),
177 	client_data->response.data = in_msg;
178 	client_data->response.max_size = in_size;
179 	client_data->response.error = 0;
180 	client_data->response.token = next_token++;
181 	client_data->response.received = false;
183 	out_hdr->token = client_data->response.token;
187 		dev_err(cl_data_to_dev(client_data),
192 	wait_event_interruptible_timeout(client_data->response.wait_queue,
193 					 client_data->response.received,
195 	if (!client_data->response.received) {
196 		dev_err(cl_data_to_dev(client_data),
201 	if (client_data->response.error < 0)
202 		return client_data->response.error;
204 	return client_data->response.size;
221 	struct ishtp_cl_data *client_data =
223 	struct device *dev = cl_data_to_dev(client_data);
242 		client_data->response.error = -EBADMSG;
249 		client_data->response.error = -EMSGSIZE;
258 		if (client_data->response.received) {
264 		if (client_data->response.token != in_msg->hdr.token) {
272 		if (!client_data->response.data) {
275 			client_data->response.error = -EINVAL;
279 		if (data_len > client_data->response.max_size) {
282 				data_len, client_data->response.max_size);
283 			client_data->response.error = -EMSGSIZE;
290 			client_data->response.error = -EIO;
295 		client_data->response.size = data_len;
301 		memcpy(client_data->response.data,
310 		client_data->response.received = true;
313 		wake_up_interruptible(&client_data->response.wait_queue);
325 		client_data->ec_dev->last_event_time = timestamp;
326 		schedule_work(&client_data->work_ec_evt);
379 	struct ishtp_cl_data *client_data = ishtp_get_client_data(cros_ish_cl);
387 		dev_err(cl_data_to_dev(client_data),
392 	ishtp_register_event_cb(client_data->cl_device, ish_event_cb);
464 	struct ishtp_cl_data *client_data = ishtp_get_client_data(cros_ish_cl);
465 	struct device *dev = cl_data_to_dev(client_data);
513 	rv = ish_send(client_data,
541 static int cros_ec_dev_init(struct ishtp_cl_data *client_data)
544 	struct device *dev = cl_data_to_dev(client_data);
550 	client_data->ec_dev = ec_dev;
554 	ec_dev->priv = client_data->cros_ish_cl;
570 	struct ishtp_cl_data *client_data =
576 	cros_ish_cl = client_data->cros_ish_cl;
582 		dev_err(cl_data_to_dev(client_data), "Reset Failed\n");
588 	client_data->ec_dev->priv = client_data->cros_ish_cl;
589 	dev = cl_data_to_dev(client_data);
590 	dev->driver_data = client_data->ec_dev;
592 	dev_info(cl_data_to_dev(client_data), "Chrome EC ISH reset done\n");
607 	struct ishtp_cl_data *client_data =
609 			     sizeof(*client_data), GFP_KERNEL);
610 	if (!client_data)
623 	ishtp_set_client_data(cros_ish_cl, client_data);
624 	client_data->cros_ish_cl = cros_ish_cl;
625 	client_data->cl_device = cl_device;
627 	init_waitqueue_head(&client_data->response.wait_queue);
629 	INIT_WORK(&client_data->work_ishtp_reset,
631 	INIT_WORK(&client_data->work_ec_evt,
643 	rv = cros_ec_dev_init(client_data);
670 	struct ishtp_cl_data *client_data = ishtp_get_client_data(cros_ish_cl);
672 	cancel_work_sync(&client_data->work_ishtp_reset);
673 	cancel_work_sync(&client_data->work_ec_evt);
687 	struct ishtp_cl_data *client_data = ishtp_get_client_data(cros_ish_cl);
689 	schedule_work(&client_data->work_ishtp_reset);
704 	struct ishtp_cl_data *client_data = ishtp_get_client_data(cros_ish_cl);
706 	return cros_ec_suspend(client_data->ec_dev);
719 	struct ishtp_cl_data *client_data = ishtp_get_client_data(cros_ish_cl);
721 	return cros_ec_resume(client_data->ec_dev);