47 void mei_amthif_reset_params(struct mei_device *dev)  in mei_amthif_reset_params()  argument
50 	dev->iamthif_current_cb = NULL;  in mei_amthif_reset_params()
51 	dev->iamthif_canceled = false;  in mei_amthif_reset_params()
52 	dev->iamthif_state = MEI_IAMTHIF_IDLE;  in mei_amthif_reset_params()
53 	dev->iamthif_timer = 0;  in mei_amthif_reset_params()
54 	dev->iamthif_stall_timer = 0;  in mei_amthif_reset_params()
55 	dev->iamthif_open_count = 0;  in mei_amthif_reset_params()
65 int mei_amthif_host_init(struct mei_device *dev)  in mei_amthif_host_init()  argument
67 	struct mei_cl *cl = &dev->iamthif_cl;  in mei_amthif_host_init()
71 	dev->iamthif_state = MEI_IAMTHIF_IDLE;  in mei_amthif_host_init()
73 	mei_cl_init(cl, dev);  in mei_amthif_host_init()
75 	me_cl = mei_me_cl_by_uuid(dev, &mei_amthif_guid);  in mei_amthif_host_init()
77 		dev_info(dev->dev, "amthif: failed to find the client");  in mei_amthif_host_init()
86 	dev->iamthif_mtu = me_cl->props.max_msg_length;  in mei_amthif_host_init()
87 	dev_dbg(dev->dev, "IAMTHIF_MTU = %d\n", dev->iamthif_mtu);  in mei_amthif_host_init()
92 		dev_err(dev->dev, "amthif: failed cl_link %d\n", ret);  in mei_amthif_host_init()
98 	dev->iamthif_state = MEI_IAMTHIF_IDLE;  in mei_amthif_host_init()
113 struct mei_cl_cb *mei_amthif_find_read_list_entry(struct mei_device *dev,  in mei_amthif_find_read_list_entry()  argument
118 	list_for_each_entry(cb, &dev->amthif_rd_complete_list.list, list)  in mei_amthif_find_read_list_entry()
141 int mei_amthif_read(struct mei_device *dev, struct file *file,  in mei_amthif_read()  argument
152 		dev_err(dev->dev, "bad file ext.\n");  in mei_amthif_read()
156 	dev_dbg(dev->dev, "checking amthif data\n");  in mei_amthif_read()
157 	cb = mei_amthif_find_read_list_entry(dev, file);  in mei_amthif_read()
164 	dev_dbg(dev->dev, "waiting for amthif data\n");  in mei_amthif_read()
167 		mutex_unlock(&dev->device_lock);  in mei_amthif_read()
169 		wait_ret = wait_event_interruptible(dev->iamthif_cl.wait,  in mei_amthif_read()
170 			(cb = mei_amthif_find_read_list_entry(dev, file)));  in mei_amthif_read()
173 		mutex_lock(&dev->device_lock);  in mei_amthif_read()
178 		dev_dbg(dev->dev, "woke up from sleep\n");  in mei_amthif_read()
183 		dev_dbg(dev->dev, "read operation failed %d\n", rets);  in mei_amthif_read()
187 	dev_dbg(dev->dev, "Got amthif data\n");  in mei_amthif_read()
188 	dev->iamthif_timer = 0;  in mei_amthif_read()
192 	dev_dbg(dev->dev, "amthif timeout = %lud\n",  in mei_amthif_read()
196 		dev_dbg(dev->dev, "amthif Time out\n");  in mei_amthif_read()
215 	dev_dbg(dev->dev, "amthif cb->buf size - %d\n",  in mei_amthif_read()
217 	dev_dbg(dev->dev, "amthif cb->buf_idx - %lu\n", cb->buf_idx);  in mei_amthif_read()
224 		dev_dbg(dev->dev, "failed to copy data to userland\n");  in mei_amthif_read()
234 	dev_dbg(dev->dev, "free amthif cb memory.\n");  in mei_amthif_read()
251 	struct mei_device *dev = cl->dev;  in mei_amthif_read_start()  local
253 	size_t length = dev->iamthif_mtu;  in mei_amthif_read_start()
266 	list_add_tail(&cb->list, &dev->ctrl_wr_list.list);  in mei_amthif_read_start()
268 	dev->iamthif_state = MEI_IAMTHIF_READING;  in mei_amthif_read_start()
269 	dev->iamthif_file_object = cb->file_object;  in mei_amthif_read_start()
270 	dev->iamthif_current_cb = cb;  in mei_amthif_read_start()
288 	struct mei_device *dev;  in mei_amthif_send_cmd()  local
291 	if (!cl->dev || !cb)  in mei_amthif_send_cmd()
294 	dev = cl->dev;  in mei_amthif_send_cmd()
296 	dev->iamthif_state = MEI_IAMTHIF_WRITING;  in mei_amthif_send_cmd()
297 	dev->iamthif_current_cb = cb;  in mei_amthif_send_cmd()
298 	dev->iamthif_file_object = cb->file_object;  in mei_amthif_send_cmd()
299 	dev->iamthif_canceled = false;  in mei_amthif_send_cmd()
318 int mei_amthif_run_next_cmd(struct mei_device *dev)  in mei_amthif_run_next_cmd()  argument
320 	struct mei_cl *cl = &dev->iamthif_cl;  in mei_amthif_run_next_cmd()
323 	dev->iamthif_canceled = false;  in mei_amthif_run_next_cmd()
324 	dev->iamthif_state = MEI_IAMTHIF_IDLE;  in mei_amthif_run_next_cmd()
325 	dev->iamthif_timer = 0;  in mei_amthif_run_next_cmd()
326 	dev->iamthif_file_object = NULL;  in mei_amthif_run_next_cmd()
328 	dev_dbg(dev->dev, "complete amthif cmd_list cb.\n");  in mei_amthif_run_next_cmd()
330 	cb = list_first_entry_or_null(&dev->amthif_cmd_list.list,  in mei_amthif_run_next_cmd()
350 	struct mei_device *dev;  in mei_amthif_write()  local
352 	if (WARN_ON(!cl || !cl->dev))  in mei_amthif_write()
358 	dev = cl->dev;  in mei_amthif_write()
360 	list_add_tail(&cb->list, &dev->amthif_cmd_list.list);  in mei_amthif_write()
361 	return mei_amthif_run_next_cmd(dev);  in mei_amthif_write()
376 unsigned int mei_amthif_poll(struct mei_device *dev,  in mei_amthif_poll()  argument
381 	poll_wait(file, &dev->iamthif_cl.wait, wait);  in mei_amthif_poll()
383 	if (dev->iamthif_state == MEI_IAMTHIF_READ_COMPLETE &&  in mei_amthif_poll()
384 	    dev->iamthif_file_object == file) {  in mei_amthif_poll()
387 		mei_amthif_run_next_cmd(dev);  in mei_amthif_poll()
433 	struct mei_device *dev;  in mei_amthif_irq_read_msg()  local
436 	dev = cl->dev;  in mei_amthif_irq_read_msg()
438 	if (dev->iamthif_state != MEI_IAMTHIF_READING)  in mei_amthif_irq_read_msg()
448 	dev_dbg(dev->dev, "completed amthif read.\n ");  in mei_amthif_irq_read_msg()
449 	dev->iamthif_current_cb = NULL;  in mei_amthif_irq_read_msg()
450 	dev->iamthif_stall_timer = 0;  in mei_amthif_irq_read_msg()
461 void mei_amthif_complete(struct mei_device *dev, struct mei_cl_cb *cb)  in mei_amthif_complete()  argument
466 			dev->iamthif_stall_timer = MEI_IAMTHIF_STALL_TIMER;  in mei_amthif_complete()
474 		list_add_tail(&cb->list, &dev->amthif_rd_complete_list.list);  in mei_amthif_complete()
475 		wake_up_interruptible(&dev->iamthif_cl.wait);  in mei_amthif_complete()
479 	if (dev->iamthif_canceled != 1) {  in mei_amthif_complete()
480 		dev->iamthif_state = MEI_IAMTHIF_READ_COMPLETE;  in mei_amthif_complete()
481 		dev->iamthif_stall_timer = 0;  in mei_amthif_complete()
482 		list_add_tail(&cb->list, &dev->amthif_rd_complete_list.list);  in mei_amthif_complete()
483 		dev_dbg(dev->dev, "amthif read completed\n");  in mei_amthif_complete()
484 		dev->iamthif_timer = jiffies;  in mei_amthif_complete()
485 		dev_dbg(dev->dev, "dev->iamthif_timer = %ld\n",  in mei_amthif_complete()
486 			dev->iamthif_timer);  in mei_amthif_complete()
488 		mei_amthif_run_next_cmd(dev);  in mei_amthif_complete()
491 	dev_dbg(dev->dev, "completing amthif call back.\n");  in mei_amthif_complete()
492 	wake_up_interruptible(&dev->iamthif_cl.wait);  in mei_amthif_complete()
508 static bool mei_clear_list(struct mei_device *dev,  in mei_clear_list()  argument
511 	struct mei_cl *cl = &dev->iamthif_cl;  in mei_clear_list()
520 			if (dev->iamthif_current_cb == cb) {  in mei_clear_list()
521 				dev->iamthif_current_cb = NULL;  in mei_clear_list()
523 				mei_hbm_cl_flow_control_req(dev, cl);  in mei_clear_list()
544 static bool mei_clear_lists(struct mei_device *dev, struct file *file)  in mei_clear_lists()  argument
549 	mei_clear_list(dev, file, &dev->amthif_cmd_list.list);  in mei_clear_lists()
550 	if (mei_clear_list(dev, file, &dev->amthif_rd_complete_list.list))  in mei_clear_lists()
553 	mei_clear_list(dev, file, &dev->ctrl_rd_list.list);  in mei_clear_lists()
555 	if (mei_clear_list(dev, file, &dev->ctrl_wr_list.list))  in mei_clear_lists()
558 	if (mei_clear_list(dev, file, &dev->write_waiting_list.list))  in mei_clear_lists()
561 	if (mei_clear_list(dev, file, &dev->write_list.list))  in mei_clear_lists()
565 	if (dev->iamthif_current_cb && !removed) {  in mei_clear_lists()
567 		if (dev->iamthif_current_cb->file_object == file) {  in mei_clear_lists()
569 			mei_io_cb_free(dev->iamthif_current_cb);  in mei_clear_lists()
570 			dev->iamthif_current_cb = NULL;  in mei_clear_lists()
585 int mei_amthif_release(struct mei_device *dev, struct file *file)  in mei_amthif_release()  argument
587 	if (dev->iamthif_open_count > 0)  in mei_amthif_release()
588 		dev->iamthif_open_count--;  in mei_amthif_release()
590 	if (dev->iamthif_file_object == file &&  in mei_amthif_release()
591 	    dev->iamthif_state != MEI_IAMTHIF_IDLE) {  in mei_amthif_release()
593 		dev_dbg(dev->dev, "amthif canceled iamthif state %d\n",  in mei_amthif_release()
594 		    dev->iamthif_state);  in mei_amthif_release()
595 		dev->iamthif_canceled = true;  in mei_amthif_release()
596 		if (dev->iamthif_state == MEI_IAMTHIF_READ_COMPLETE) {  in mei_amthif_release()
597 			dev_dbg(dev->dev, "run next amthif iamthif cb\n");  in mei_amthif_release()
598 			mei_amthif_run_next_cmd(dev);  in mei_amthif_release()
602 	if (mei_clear_lists(dev, file))  in mei_amthif_release()
603 		dev->iamthif_state = MEI_IAMTHIF_IDLE;  in mei_amthif_release()