1/*
2 * Copyright (c) 2014 Redpine Signals Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 *
16 */
17
18#include <linux/firmware.h>
19#include "rsi_usb.h"
20
21/**
22 * rsi_usb_rx_thread() - This is a kernel thread to receive the packets from
23 *			 the USB device.
24 * @common: Pointer to the driver private structure.
25 *
26 * Return: None.
27 */
28void rsi_usb_rx_thread(struct rsi_common *common)
29{
30	struct rsi_hw *adapter = common->priv;
31	struct rsi_91x_usbdev *dev = adapter->rsi_dev;
32	int status;
33	struct sk_buff *skb;
34
35	do {
36		rsi_wait_event(&dev->rx_thread.event, EVENT_WAIT_FOREVER);
37		rsi_reset_event(&dev->rx_thread.event);
38
39		while (true) {
40			if (atomic_read(&dev->rx_thread.thread_done))
41				goto out;
42
43			skb = skb_dequeue(&dev->rx_q);
44			if (!skb)
45				break;
46			status = rsi_read_pkt(common, skb->data, 0);
47			if (status) {
48				rsi_dbg(ERR_ZONE, "%s: Failed To read data",
49					__func__);
50				break;
51			}
52			dev_kfree_skb(skb);
53		}
54	} while (1);
55
56out:
57	rsi_dbg(INFO_ZONE, "%s: Terminated thread\n", __func__);
58	skb_queue_purge(&dev->rx_q);
59	kthread_complete_and_exit(&dev->rx_thread.completion, 0);
60}
61
62