a1854fae14
Curretly, RX packet processing is done sequencially. To improve the efficiency, RX skb queue is introduced. Here, while preparing RX URB skb is allocated and used for RX buffer. When rx done handler is called, enqueue the skb to rx_q and set the thread event. RX thread is modified to dequeue packets from skb queue and process further. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/**
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* @section LICENSE
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* Copyright (c) 2014 Redpine Signals Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __RSI_USB_INTF__
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#define __RSI_USB_INTF__
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#include <linux/usb.h>
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#include "rsi_main.h"
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#include "rsi_common.h"
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#define USB_INTERNAL_REG_1 0x25000
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#define RSI_USB_READY_MAGIC_NUM 0xab
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#define FW_STATUS_REG 0x41050012
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#define RSI_TA_HOLD_REG 0x22000844
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#define USB_VENDOR_REGISTER_READ 0x15
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#define USB_VENDOR_REGISTER_WRITE 0x16
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#define RSI_USB_TX_HEAD_ROOM 128
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#define MAX_RX_URBS 2
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#define MAX_BULK_EP 8
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#define WLAN_EP 1
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#define BT_EP 2
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#define RSI_USB_BUF_SIZE 4096
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#define RSI_USB_CTRL_BUF_SIZE 0x04
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struct rx_usb_ctrl_block {
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u8 *data;
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struct urb *rx_urb;
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struct sk_buff *rx_skb;
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u8 ep_num;
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};
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struct rsi_91x_usbdev {
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void *priv;
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struct rsi_thread rx_thread;
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u8 endpoint;
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struct usb_device *usbdev;
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struct usb_interface *pfunction;
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struct rx_usb_ctrl_block rx_cb[MAX_RX_URBS];
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u8 *tx_buffer;
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__le16 bulkin_size[MAX_BULK_EP];
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u8 bulkin_endpoint_addr[MAX_BULK_EP];
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__le16 bulkout_size[MAX_BULK_EP];
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u8 bulkout_endpoint_addr[MAX_BULK_EP];
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u32 tx_blk_size;
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u8 write_fail;
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struct sk_buff_head rx_q;
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};
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static inline int rsi_usb_check_queue_status(struct rsi_hw *adapter, u8 q_num)
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{
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/* In USB, there isn't any need to check the queue status */
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return QUEUE_NOT_FULL;
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}
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static inline int rsi_usb_event_timeout(struct rsi_hw *adapter)
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{
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return EVENT_WAIT_FOREVER;
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}
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void rsi_usb_rx_thread(struct rsi_common *common);
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#endif
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