drivers/net/wireless/rsi/rsi_usb.h

   1 /**
   2  * @section LICENSE
   3  * Copyright (c) 2014 Redpine Signals Inc.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #ifndef __RSI_USB_INTF__
  19 #define __RSI_USB_INTF__
  20
  21 #include <linux/usb.h>
  22 #include "rsi_main.h"
  23 #include "rsi_common.h"
  24
  25 #define USB_INTERNAL_REG_1           0x25000
  26 #define RSI_USB_READY_MAGIC_NUM      0xab
  27 #define FW_STATUS_REG                0x41050012
  28 #define RSI_TA_HOLD_REG              0x22000844
  29
  30 #define USB_VENDOR_REGISTER_READ     0x15
  31 #define USB_VENDOR_REGISTER_WRITE    0x16
  32 #define RSI_USB_TX_HEAD_ROOM         128
  33
  34 #define MAX_RX_URBS                  2
  35 #define MAX_BULK_EP                  8
  36 #define WLAN_EP                      1
  37 #define BT_EP                        2
  38
  39 #define RSI_USB_BUF_SIZE             4096
  40 #define RSI_USB_CTRL_BUF_SIZE        0x04
  41
  42 struct rx_usb_ctrl_block {
  43         u8 *data;
  44         struct urb *rx_urb;
  45         struct sk_buff *rx_skb;
  46         u8 ep_num;
  47 };
  48
  49 struct rsi_91x_usbdev {
  50         void *priv;
  51         struct rsi_thread rx_thread;
  52         u8 endpoint;
  53         struct usb_device *usbdev;
  54         struct usb_interface *pfunction;
  55         struct rx_usb_ctrl_block rx_cb[MAX_RX_URBS];
  56         u8 *tx_buffer;
  57         __le16 bulkin_size[MAX_BULK_EP];
  58         u8 bulkin_endpoint_addr[MAX_BULK_EP];
  59         __le16 bulkout_size[MAX_BULK_EP];
  60         u8 bulkout_endpoint_addr[MAX_BULK_EP];
  61         u32 tx_blk_size;
  62         u8 write_fail;
  63         struct sk_buff_head rx_q;
  64 };
  65
  66 static inline int rsi_usb_check_queue_status(struct rsi_hw *adapter, u8 q_num)
  67 {
  68         /* In USB, there isn't any need to check the queue status */
  69         return QUEUE_NOT_FULL;
  70 }
  71
  72 static inline int rsi_usb_event_timeout(struct rsi_hw *adapter)
  73 {
  74         return EVENT_WAIT_FOREVER;
  75 }
  76
  77 void rsi_usb_rx_thread(struct rsi_common *common);
  78 #endif