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()
66 int mei_amthif_host_init(struct mei_device *dev, struct mei_me_client *me_cl)  in mei_amthif_host_init()  argument
68 	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()
77 		dev_err(dev->dev, "amthif: failed cl_link %d\n", ret);  in mei_amthif_host_init()
83 	dev->iamthif_state = MEI_IAMTHIF_IDLE;  in mei_amthif_host_init()
96 struct mei_cl_cb *mei_amthif_find_read_list_entry(struct mei_device *dev,  in mei_amthif_find_read_list_entry()  argument
101 	list_for_each_entry(cb, &dev->amthif_rd_complete_list.list, list)  in mei_amthif_find_read_list_entry()
124 int mei_amthif_read(struct mei_device *dev, struct file *file,  in mei_amthif_read()  argument
135 		dev_err(dev->dev, "bad file ext.\n");  in mei_amthif_read()
139 	dev_dbg(dev->dev, "checking amthif data\n");  in mei_amthif_read()
140 	cb = mei_amthif_find_read_list_entry(dev, file);  in mei_amthif_read()
147 	dev_dbg(dev->dev, "waiting for amthif data\n");  in mei_amthif_read()
150 		mutex_unlock(&dev->device_lock);  in mei_amthif_read()
152 		wait_ret = wait_event_interruptible(dev->iamthif_cl.wait,  in mei_amthif_read()
153 			(cb = mei_amthif_find_read_list_entry(dev, file)));  in mei_amthif_read()
156 		mutex_lock(&dev->device_lock);  in mei_amthif_read()
161 		dev_dbg(dev->dev, "woke up from sleep\n");  in mei_amthif_read()
166 		dev_dbg(dev->dev, "read operation failed %d\n", rets);  in mei_amthif_read()
170 	dev_dbg(dev->dev, "Got amthif data\n");  in mei_amthif_read()
171 	dev->iamthif_timer = 0;  in mei_amthif_read()
175 	dev_dbg(dev->dev, "amthif timeout = %lud\n",  in mei_amthif_read()
179 		dev_dbg(dev->dev, "amthif Time out\n");  in mei_amthif_read()
198 	dev_dbg(dev->dev, "amthif cb->buf size - %d\n",  in mei_amthif_read()
200 	dev_dbg(dev->dev, "amthif cb->buf_idx - %lu\n", cb->buf_idx);  in mei_amthif_read()
207 		dev_dbg(dev->dev, "failed to copy data to userland\n");  in mei_amthif_read()
217 	dev_dbg(dev->dev, "free amthif cb memory.\n");  in mei_amthif_read()
234 	struct mei_device *dev = cl->dev;  in mei_amthif_read_start()  local
248 	list_add_tail(&cb->list, &dev->ctrl_wr_list.list);  in mei_amthif_read_start()
250 	dev->iamthif_state = MEI_IAMTHIF_READING;  in mei_amthif_read_start()
251 	dev->iamthif_file_object = cb->file_object;  in mei_amthif_read_start()
252 	dev->iamthif_current_cb = cb;  in mei_amthif_read_start()
270 	struct mei_device *dev;  in mei_amthif_send_cmd()  local
273 	if (!cl->dev || !cb)  in mei_amthif_send_cmd()
276 	dev = cl->dev;  in mei_amthif_send_cmd()
278 	dev->iamthif_state = MEI_IAMTHIF_WRITING;  in mei_amthif_send_cmd()
279 	dev->iamthif_current_cb = cb;  in mei_amthif_send_cmd()
280 	dev->iamthif_file_object = cb->file_object;  in mei_amthif_send_cmd()
281 	dev->iamthif_canceled = false;  in mei_amthif_send_cmd()
300 int mei_amthif_run_next_cmd(struct mei_device *dev)  in mei_amthif_run_next_cmd()  argument
302 	struct mei_cl *cl = &dev->iamthif_cl;  in mei_amthif_run_next_cmd()
305 	dev->iamthif_canceled = false;  in mei_amthif_run_next_cmd()
306 	dev->iamthif_state = MEI_IAMTHIF_IDLE;  in mei_amthif_run_next_cmd()
307 	dev->iamthif_timer = 0;  in mei_amthif_run_next_cmd()
308 	dev->iamthif_file_object = NULL;  in mei_amthif_run_next_cmd()
310 	dev_dbg(dev->dev, "complete amthif cmd_list cb.\n");  in mei_amthif_run_next_cmd()
312 	cb = list_first_entry_or_null(&dev->amthif_cmd_list.list,  in mei_amthif_run_next_cmd()
332 	struct mei_device *dev;  in mei_amthif_write()  local
334 	if (WARN_ON(!cl || !cl->dev))  in mei_amthif_write()
340 	dev = cl->dev;  in mei_amthif_write()
342 	list_add_tail(&cb->list, &dev->amthif_cmd_list.list);  in mei_amthif_write()
343 	return mei_amthif_run_next_cmd(dev);  in mei_amthif_write()
358 unsigned int mei_amthif_poll(struct mei_device *dev,  in mei_amthif_poll()  argument
363 	poll_wait(file, &dev->iamthif_cl.wait, wait);  in mei_amthif_poll()
365 	if (dev->iamthif_state == MEI_IAMTHIF_READ_COMPLETE &&  in mei_amthif_poll()
366 	    dev->iamthif_file_object == file) {  in mei_amthif_poll()
369 		mei_amthif_run_next_cmd(dev);  in mei_amthif_poll()
415 	struct mei_device *dev;  in mei_amthif_irq_read_msg()  local
418 	dev = cl->dev;  in mei_amthif_irq_read_msg()
420 	if (dev->iamthif_state != MEI_IAMTHIF_READING) {  in mei_amthif_irq_read_msg()
421 		mei_irq_discard_msg(dev, mei_hdr);  in mei_amthif_irq_read_msg()
432 	dev_dbg(dev->dev, "completed amthif read.\n ");  in mei_amthif_irq_read_msg()
433 	dev->iamthif_current_cb = NULL;  in mei_amthif_irq_read_msg()
434 	dev->iamthif_stall_timer = 0;  in mei_amthif_irq_read_msg()
445 void mei_amthif_complete(struct mei_device *dev, struct mei_cl_cb *cb)  in mei_amthif_complete()  argument
450 			dev->iamthif_stall_timer = MEI_IAMTHIF_STALL_TIMER;  in mei_amthif_complete()
458 		list_add_tail(&cb->list, &dev->amthif_rd_complete_list.list);  in mei_amthif_complete()
459 		wake_up_interruptible(&dev->iamthif_cl.wait);  in mei_amthif_complete()
463 	if (!dev->iamthif_canceled) {  in mei_amthif_complete()
464 		dev->iamthif_state = MEI_IAMTHIF_READ_COMPLETE;  in mei_amthif_complete()
465 		dev->iamthif_stall_timer = 0;  in mei_amthif_complete()
466 		list_add_tail(&cb->list, &dev->amthif_rd_complete_list.list);  in mei_amthif_complete()
467 		dev_dbg(dev->dev, "amthif read completed\n");  in mei_amthif_complete()
468 		dev->iamthif_timer = jiffies;  in mei_amthif_complete()
469 		dev_dbg(dev->dev, "dev->iamthif_timer = %ld\n",  in mei_amthif_complete()
470 			dev->iamthif_timer);  in mei_amthif_complete()
472 		mei_amthif_run_next_cmd(dev);  in mei_amthif_complete()
475 	dev_dbg(dev->dev, "completing amthif call back.\n");  in mei_amthif_complete()
476 	wake_up_interruptible(&dev->iamthif_cl.wait);  in mei_amthif_complete()
492 static bool mei_clear_list(struct mei_device *dev,  in mei_clear_list()  argument
495 	struct mei_cl *cl = &dev->iamthif_cl;  in mei_clear_list()
504 			if (dev->iamthif_current_cb == cb) {  in mei_clear_list()
505 				dev->iamthif_current_cb = NULL;  in mei_clear_list()
507 				mei_hbm_cl_flow_control_req(dev, cl);  in mei_clear_list()
528 static bool mei_clear_lists(struct mei_device *dev, struct file *file)  in mei_clear_lists()  argument
533 	mei_clear_list(dev, file, &dev->amthif_cmd_list.list);  in mei_clear_lists()
534 	if (mei_clear_list(dev, file, &dev->amthif_rd_complete_list.list))  in mei_clear_lists()
537 	mei_clear_list(dev, file, &dev->ctrl_rd_list.list);  in mei_clear_lists()
539 	if (mei_clear_list(dev, file, &dev->ctrl_wr_list.list))  in mei_clear_lists()
542 	if (mei_clear_list(dev, file, &dev->write_waiting_list.list))  in mei_clear_lists()
545 	if (mei_clear_list(dev, file, &dev->write_list.list))  in mei_clear_lists()
549 	if (dev->iamthif_current_cb && !removed) {  in mei_clear_lists()
551 		if (dev->iamthif_current_cb->file_object == file) {  in mei_clear_lists()
553 			mei_io_cb_free(dev->iamthif_current_cb);  in mei_clear_lists()
554 			dev->iamthif_current_cb = NULL;  in mei_clear_lists()
569 int mei_amthif_release(struct mei_device *dev, struct file *file)  in mei_amthif_release()  argument
571 	if (dev->iamthif_open_count > 0)  in mei_amthif_release()
572 		dev->iamthif_open_count--;  in mei_amthif_release()
574 	if (dev->iamthif_file_object == file &&  in mei_amthif_release()
575 	    dev->iamthif_state != MEI_IAMTHIF_IDLE) {  in mei_amthif_release()
577 		dev_dbg(dev->dev, "amthif canceled iamthif state %d\n",  in mei_amthif_release()
578 		    dev->iamthif_state);  in mei_amthif_release()
579 		dev->iamthif_canceled = true;  in mei_amthif_release()
580 		if (dev->iamthif_state == MEI_IAMTHIF_READ_COMPLETE) {  in mei_amthif_release()
581 			dev_dbg(dev->dev, "run next amthif iamthif cb\n");  in mei_amthif_release()
582 			mei_amthif_run_next_cmd(dev);  in mei_amthif_release()
586 	if (mei_clear_lists(dev, file))  in mei_amthif_release()
587 		dev->iamthif_state = MEI_IAMTHIF_IDLE;  in mei_amthif_release()