1dad0d04fSFariya Fatima /** 2dad0d04fSFariya Fatima * Copyright (c) 2014 Redpine Signals Inc. 3dad0d04fSFariya Fatima * 4dad0d04fSFariya Fatima * Permission to use, copy, modify, and/or distribute this software for any 5dad0d04fSFariya Fatima * purpose with or without fee is hereby granted, provided that the above 6dad0d04fSFariya Fatima * copyright notice and this permission notice appear in all copies. 7dad0d04fSFariya Fatima * 8dad0d04fSFariya Fatima * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9dad0d04fSFariya Fatima * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10dad0d04fSFariya Fatima * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11dad0d04fSFariya Fatima * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12dad0d04fSFariya Fatima * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13dad0d04fSFariya Fatima * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14dad0d04fSFariya Fatima * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15dad0d04fSFariya Fatima * 16dad0d04fSFariya Fatima */ 17dad0d04fSFariya Fatima 18dad0d04fSFariya Fatima #include <linux/firmware.h> 19dad0d04fSFariya Fatima #include "rsi_usb.h" 20dad0d04fSFariya Fatima 21dad0d04fSFariya Fatima /** 22dad0d04fSFariya Fatima * rsi_usb_rx_thread() - This is a kernel thread to receive the packets from 23dad0d04fSFariya Fatima * the USB device. 24dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 25dad0d04fSFariya Fatima * 26dad0d04fSFariya Fatima * Return: None. 27dad0d04fSFariya Fatima */ 28dad0d04fSFariya Fatima void rsi_usb_rx_thread(struct rsi_common *common) 29dad0d04fSFariya Fatima { 30dad0d04fSFariya Fatima struct rsi_hw *adapter = common->priv; 31dad0d04fSFariya Fatima struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; 32*a1854faeSPrameela Rani Garnepudi int status; 33*a1854faeSPrameela Rani Garnepudi struct sk_buff *skb; 34dad0d04fSFariya Fatima 35dad0d04fSFariya Fatima do { 36dad0d04fSFariya Fatima rsi_wait_event(&dev->rx_thread.event, EVENT_WAIT_FOREVER); 37*a1854faeSPrameela Rani Garnepudi rsi_reset_event(&dev->rx_thread.event); 38dad0d04fSFariya Fatima 39*a1854faeSPrameela Rani Garnepudi while (true) { 40dad0d04fSFariya Fatima if (atomic_read(&dev->rx_thread.thread_done)) 41dad0d04fSFariya Fatima goto out; 42dad0d04fSFariya Fatima 43*a1854faeSPrameela Rani Garnepudi skb = skb_dequeue(&dev->rx_q); 44*a1854faeSPrameela Rani Garnepudi if (!skb) 45*a1854faeSPrameela Rani Garnepudi break; 46*a1854faeSPrameela Rani Garnepudi status = rsi_read_pkt(common, skb->data, 0); 47dad0d04fSFariya Fatima if (status) { 481100f81bSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "%s: Failed To read data", 491100f81bSPrameela Rani Garnepudi __func__); 501100f81bSPrameela Rani Garnepudi break; 51dad0d04fSFariya Fatima } 52*a1854faeSPrameela Rani Garnepudi dev_kfree_skb(skb); 53dad0d04fSFariya Fatima } 54dad0d04fSFariya Fatima } while (1); 55dad0d04fSFariya Fatima 56dad0d04fSFariya Fatima out: 57dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, "%s: Terminated thread\n", __func__); 58*a1854faeSPrameela Rani Garnepudi skb_queue_purge(&dev->rx_q); 59dad0d04fSFariya Fatima complete_and_exit(&dev->rx_thread.completion, 0); 60dad0d04fSFariya Fatima } 61dad0d04fSFariya Fatima 62