111 static u32 goldfish_cmd_status(struct goldfish_pipe *pipe, u32 cmd)  in goldfish_cmd_status()  argument
115 	struct goldfish_pipe_dev *dev = pipe->dev;  in goldfish_cmd_status()
118 	writel((u32)(u64)pipe, dev->base + PIPE_REG_CHANNEL);  in goldfish_cmd_status()
120 	writel((u32)((u64)pipe >> 32), dev->base + PIPE_REG_CHANNEL_HIGH);  in goldfish_cmd_status()
128 static void goldfish_cmd(struct goldfish_pipe *pipe, u32 cmd)  in goldfish_cmd()  argument
131 	struct goldfish_pipe_dev *dev = pipe->dev;  in goldfish_cmd()
134 	writel((u32)(u64)pipe, dev->base + PIPE_REG_CHANNEL);  in goldfish_cmd()
136 	writel((u32)((u64)pipe >> 32), dev->base + PIPE_REG_CHANNEL_HIGH);  in goldfish_cmd()
206 				struct goldfish_pipe *pipe, int *status)  in access_with_param()  argument
214 	aps->channel = (unsigned long)pipe;  in access_with_param()
233 	struct goldfish_pipe *pipe = filp->private_data;  in goldfish_pipe_read_write()  local
234 	struct goldfish_pipe_dev *dev = pipe->dev;  in goldfish_pipe_read_write()
240 	if (test_bit(BIT_CLOSED_ON_HOST, &pipe->flags))  in goldfish_pipe_read_write()
253 	if (mutex_lock_interruptible(&pipe->lock))  in goldfish_pipe_read_write()
282 			mutex_unlock(&pipe->lock);  in goldfish_pipe_read_write()
288 			mutex_unlock(&pipe->lock);  in goldfish_pipe_read_write()
314 					xaddr, avail, pipe, &status)) {  in goldfish_pipe_read_write()
315 			writel((u32)(u64)pipe, dev->base + PIPE_REG_CHANNEL);  in goldfish_pipe_read_write()
317 			writel((u32)((u64)pipe >> 32), dev->base + PIPE_REG_CHANNEL_HIGH);  in goldfish_pipe_read_write()
378 		set_bit(wakeBit, &pipe->flags);  in goldfish_pipe_read_write()
381 		goldfish_cmd(pipe,  in goldfish_pipe_read_write()
385 		mutex_unlock(&pipe->lock);  in goldfish_pipe_read_write()
387 		while (test_bit(wakeBit, &pipe->flags)) {  in goldfish_pipe_read_write()
389 					pipe->wake_queue,  in goldfish_pipe_read_write()
390 					!test_bit(wakeBit, &pipe->flags))) {  in goldfish_pipe_read_write()
394 			if (test_bit(BIT_CLOSED_ON_HOST, &pipe->flags)) {  in goldfish_pipe_read_write()
400 		if (mutex_lock_interruptible(&pipe->lock))  in goldfish_pipe_read_write()
403 	mutex_unlock(&pipe->lock);  in goldfish_pipe_read_write()
428 	struct goldfish_pipe *pipe = filp->private_data;  in goldfish_pipe_poll()  local
432 	mutex_lock(&pipe->lock);  in goldfish_pipe_poll()
434 	poll_wait(filp, &pipe->wake_queue, wait);  in goldfish_pipe_poll()
436 	status = goldfish_cmd_status(pipe, CMD_POLL);  in goldfish_pipe_poll()
438 	mutex_unlock(&pipe->lock);  in goldfish_pipe_poll()
449 	if (test_bit(BIT_CLOSED_ON_HOST, &pipe->flags))  in goldfish_pipe_poll()
469 		struct goldfish_pipe *pipe;  in goldfish_pipe_interrupt()  local
486 		pipe  = (struct goldfish_pipe *)(ptrdiff_t)channel;  in goldfish_pipe_interrupt()
490 			set_bit(BIT_CLOSED_ON_HOST, &pipe->flags);  in goldfish_pipe_interrupt()
494 			clear_bit(BIT_WAKE_ON_READ, &pipe->flags);  in goldfish_pipe_interrupt()
496 			clear_bit(BIT_WAKE_ON_WRITE, &pipe->flags);  in goldfish_pipe_interrupt()
498 		wake_up_interruptible(&pipe->wake_queue);  in goldfish_pipe_interrupt()
519 	struct goldfish_pipe *pipe;  in goldfish_pipe_open()  local
524 	pipe = kzalloc(sizeof(*pipe), GFP_KERNEL);  in goldfish_pipe_open()
525 	if (pipe == NULL)  in goldfish_pipe_open()
528 	pipe->dev = dev;  in goldfish_pipe_open()
529 	mutex_init(&pipe->lock);  in goldfish_pipe_open()
530 …ll. pipe_dev pipe_dev=0x%lx new_pipe_addr=0x%lx file=0x%lx\n", __FUNCTION__, pipe_dev, pipe, file);  in goldfish_pipe_open()
532 	init_waitqueue_head(&pipe->wake_queue);  in goldfish_pipe_open()
539 	status = goldfish_cmd_status(pipe, CMD_OPEN);  in goldfish_pipe_open()
541 		kfree(pipe);  in goldfish_pipe_open()
546 	file->private_data = pipe;  in goldfish_pipe_open()
552 	struct goldfish_pipe *pipe = filp->private_data;  in goldfish_pipe_release()  local
554 	DPRINT("%s: call. pipe=0x%lx file=0x%lx\n", __FUNCTION__, pipe, filp);  in goldfish_pipe_release()
556 	goldfish_cmd(pipe, CMD_CLOSE);  in goldfish_pipe_release()
557 	kfree(pipe);  in goldfish_pipe_release()