text: #ifndef PRISM54USB_H
  #define PRISM54USB_H
  
  /*
   * Defines for USB based mac80211 Prism54 driver
   *
   * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   *
   * Based on the islsm (softmac prism54) driver, which is:
   * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  
  /* for isl3886 register definitions used on ver 1 devices */
  #include "p54pci.h"
  #include "net2280.h"
  
  /* pci */
  #define NET2280_BASE		0x10000000
  #define NET2280_BASE2		0x20000000
  
  /* gpio */
  #define P54U_BRG_POWER_UP	(1 << GPIO0_DATA)
  #define P54U_BRG_POWER_DOWN	(1 << GPIO1_DATA)
  
  /* devinit */
  #define NET2280_CLK_4Mhz	(15 << LOCAL_CLOCK_FREQUENCY)
  #define NET2280_CLK_30Mhz	(2 << LOCAL_CLOCK_FREQUENCY)
  #define NET2280_CLK_60Mhz	(1 << LOCAL_CLOCK_FREQUENCY)
  #define NET2280_CLK_STOP	(0 << LOCAL_CLOCK_FREQUENCY)
  #define NET2280_PCI_ENABLE	(1 << PCI_ENABLE)
  #define NET2280_PCI_SOFT_RESET	(1 << PCI_SOFT_RESET)
  
  /* endpoints */
  #define NET2280_CLEAR_NAK_OUT_PACKETS_MODE	(1 << CLEAR_NAK_OUT_PACKETS_MODE)
  #define NET2280_FIFO_FLUSH			(1 << FIFO_FLUSH)
  
  /* irq */
  #define NET2280_USB_INTERRUPT_ENABLE		(1 << USB_INTERRUPT_ENABLE)
  #define NET2280_PCI_INTA_INTERRUPT		(1 << PCI_INTA_INTERRUPT)
  #define NET2280_PCI_INTA_INTERRUPT_ENABLE	(1 << PCI_INTA_INTERRUPT_ENABLE)
  
  /* registers */
  #define NET2280_DEVINIT		0x00
  #define NET2280_USBIRQENB1	0x24
  #define NET2280_IRQSTAT1	0x2c
  #define NET2280_FIFOCTL         0x38
  #define NET2280_GPIOCTL		0x50
  #define NET2280_RELNUM		0x88
  #define NET2280_EPA_RSP		0x324
  #define NET2280_EPA_STAT	0x32c
  #define NET2280_EPB_STAT	0x34c
  #define NET2280_EPC_RSP		0x364
  #define NET2280_EPC_STAT	0x36c
  #define NET2280_EPD_STAT	0x38c
  
  #define NET2280_EPA_CFG     0x320
  #define NET2280_EPB_CFG     0x340
  #define NET2280_EPC_CFG     0x360
  #define NET2280_EPD_CFG     0x380
  #define NET2280_EPE_CFG     0x3A0
  #define NET2280_EPF_CFG     0x3C0
  #define P54U_DEV_BASE 0x40000000
  
  struct net2280_tx_hdr {
  	__le32 device_addr;
  	__le16 len;
  	__le16 follower;	/* ? */
  	u8 padding[8];
  } __attribute__((packed));
  
  /* Some flags for the isl hardware registers controlling DMA inside the
   * chip */
  #define ISL38XX_DMA_STATUS_DONE			0x00000001
  #define ISL38XX_DMA_STATUS_READY		0x00000002
  #define NET2280_EPA_FIFO_PCI_ADDR		0x20000000
  #define ISL38XX_DMA_MASTER_CONTROL_TRIGGER	0x00000004
  
  enum net2280_op_type {
  	NET2280_BRG_U32		= 0x001F,
  	NET2280_BRG_CFG_U32	= 0x000F,
  	NET2280_BRG_CFG_U16	= 0x0003,
  	NET2280_DEV_U32		= 0x080F,
  	NET2280_DEV_CFG_U32	= 0x088F,
  	NET2280_DEV_CFG_U16	= 0x0883
  };
  
  #define P54U_FW_BLOCK 2048
  
  #define X2_SIGNATURE "x2  "
  #define X2_SIGNATURE_SIZE 4
  
  struct x2_header {
  	u8 signature[X2_SIGNATURE_SIZE];
  	__le32 fw_load_addr;
  	__le32 fw_length;
  	__le32 crc;
  } __attribute__((packed));
  
  /* pipes 3 and 4 are not used by the driver */
  #define P54U_PIPE_NUMBER 9
  
  enum p54u_pipe_addr {
          P54U_PIPE_DATA = 0x01,
          P54U_PIPE_MGMT = 0x02,
          P54U_PIPE_3 = 0x03,
          P54U_PIPE_4 = 0x04,
          P54U_PIPE_BRG = 0x0d,
          P54U_PIPE_DEV = 0x0e,
          P54U_PIPE_INT = 0x0f
  };
  
  struct p54u_rx_info {
  	struct urb *urb;
  	struct ieee80211_hw *dev;
  };
  
  struct p54u_priv {
  	struct p54_common common;
  	struct usb_device *udev;
  	enum {
  		P54U_NET2280 = 0,
  		P54U_3887
  	} hw_type;
  
  	spinlock_t lock;
  	struct sk_buff_head rx_queue;
  };
  
  #endif /* PRISM54USB_H */
  