p54usb.h

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#ifndef P54USB_H
#define P54USB_H

/*
 * Defines for USB based mac80211 Prism54 driver
 *
 * Copyright (c) 2006, Michael Wu <[email protected]>
 *
 * Based on the islsm (softmac prism54) driver, which is:
 * Copyright 2004-2006 Jean-Baptiste Note <[email protected]>, 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];
} __packed;

struct lm87_tx_hdr {
    __le32 device_addr;
    __le32 chksum;
} __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;
} __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;
};

enum p54u_hw_type {
    P54U_INVALID_HW,
    P54U_NET2280,
    P54U_3887,

    /* keep last */
    __NUM_P54U_HWTYPES,
};

struct p54u_priv {
    struct p54_common common;
    struct usb_device *udev;
    struct usb_interface *intf;
    int (*upload_fw)(struct ieee80211_hw *dev);

    enum p54u_hw_type hw_type;
    spinlock_t lock;
    struct sk_buff_head rx_queue;
    struct usb_anchor submitted;
    const struct firmware *fw;

    /* asynchronous firmware callback */
    struct completion fw_wait_load;
};

#endif /* P54USB_H */