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 #define RSI_FW_WDT_DISABLE_REQ       0x69
  30
  31 #define USB_VENDOR_REGISTER_READ     0x15
  32 #define USB_VENDOR_REGISTER_WRITE    0x16
  33 #define RSI_USB_TX_HEAD_ROOM         128
  34
  35 #define MAX_RX_URBS                  2
  36 #define MAX_BULK_EP                  8
  37 #define WLAN_EP                      1
  38 #define BT_EP                        2
  39
  40 #define RSI_USB_BUF_SIZE             4096
  41 #define RSI_USB_CTRL_BUF_SIZE        0x04
  42
  43 struct rx_usb_ctrl_block {
  44         u8 *data;
  45         struct urb *rx_urb;
  46         struct sk_buff *rx_skb;
  47         u8 ep_num;
  48 };
  49
  50 struct rsi_91x_usbdev {
  51         void *priv;
  52         struct rsi_thread rx_thread;
  53         u8 endpoint;
  54         struct usb_device *usbdev;
  55         struct usb_interface *pfunction;
  56         struct rx_usb_ctrl_block rx_cb[MAX_RX_URBS];
  57         u8 *tx_buffer;
  58         __le16 bulkin_size[MAX_BULK_EP];
  59         u8 bulkin_endpoint_addr[MAX_BULK_EP];
  60         __le16 bulkout_size[MAX_BULK_EP];
  61         u8 bulkout_endpoint_addr[MAX_BULK_EP];
  62         u32 tx_blk_size;
  63         u8 write_fail;
  64         struct sk_buff_head rx_q;
  65 };
  66
  67 static inline int rsi_usb_check_queue_status(struct rsi_hw *adapter, u8 q_num)
  68 {
  69         /* In USB, there isn't any need to check the queue status */
  70         return QUEUE_NOT_FULL;
  71 }
  72
  73 static inline int rsi_usb_event_timeout(struct rsi_hw *adapter)
  74 {
  75         return EVENT_WAIT_FOREVER;
  76 }
  77
  78 void rsi_usb_rx_thread(struct rsi_common *common);
  79 #endif