[P54]: add mac80211-based driver for prism54 softmac hardware

Signed-off-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -3060,6 +3060,14 @@ L:	kpreempt-tech@lists.sourceforge.net
 W:	ftp://ftp.kernel.org/pub/linux/kernel/people/rml/preempt-kernel
 S:	Supported
 
+P54 WIRELESS DRIVER
+P:	Michael Wu
+M:	flamingice@sourmilk.net
+L:	linux-wireless@vger.kernel.org
+W:	http://prism54.org
+T:	git kernel.org:/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git
+S:	Maintained
+
 PRISM54 WIRELESS DRIVER
 P:	Luis R. Rodriguez
 M:	mcgrof@gmail.com

drivers/net/wireless/Kconfig

@@ -577,6 +577,19 @@ config ADM8211
 
 	  Thanks to Infineon-ADMtek for their support of this driver.
 
+config P54_COMMON
+	tristate "Softmac Prism54 support"
+	depends on MAC80211 && WLAN_80211 && FW_LOADER && EXPERIMENTAL
+
+config P54_USB
+	tristate "Prism54 USB support"
+	depends on P54_COMMON && USB
+	select CRC32
+
+config P54_PCI
+	tristate "Prism54 PCI support"
+	depends on P54_COMMON && PCI
+
 source "drivers/net/wireless/iwlwifi/Kconfig"
 source "drivers/net/wireless/hostap/Kconfig"
 source "drivers/net/wireless/bcm43xx/Kconfig"

drivers/net/wireless/Makefile

@@ -54,3 +54,7 @@ obj-$(CONFIG_ADM8211)	+= adm8211.o
 
 obj-$(CONFIG_IWLWIFI)	+= iwlwifi/
 obj-$(CONFIG_RT2X00)	+= rt2x00/
+
+obj-$(CONFIG_P54_COMMON)	+= p54common.o
+obj-$(CONFIG_P54_USB)		+= p54usb.o
+obj-$(CONFIG_P54_PCI)		+= p54pci.o

drivers/net/wireless/p54.h

+#ifndef PRISM54_H
+#define PRISM54_H
+
+/*
+ * Shared defines for all mac80211 Prism54 code
+ *
+ * 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.
+ */
+
+enum control_frame_types {
+	P54_CONTROL_TYPE_FILTER_SET = 0,
+	P54_CONTROL_TYPE_CHANNEL_CHANGE,
+	P54_CONTROL_TYPE_FREQDONE,
+	P54_CONTROL_TYPE_DCFINIT,
+	P54_CONTROL_TYPE_FREEQUEUE = 7,
+	P54_CONTROL_TYPE_TXDONE,
+	P54_CONTROL_TYPE_PING,
+	P54_CONTROL_TYPE_STAT_READBACK,
+	P54_CONTROL_TYPE_BBP,
+	P54_CONTROL_TYPE_EEPROM_READBACK,
+	P54_CONTROL_TYPE_LED
+};
+
+struct p54_control_hdr {
+	__le16 magic1;
+	__le16 len;
+	__le32 req_id;
+	__le16 type;	/* enum control_frame_types */
+	u8 retry1;
+	u8 retry2;
+	u8 data[0];
+} __attribute__ ((packed));
+
+#define EEPROM_READBACK_LEN (sizeof(struct p54_control_hdr) + 4 /* p54_eeprom_lm86 */)
+#define MAX_RX_SIZE (IEEE80211_MAX_RTS_THRESHOLD + sizeof(struct p54_control_hdr) + 20 /* length of struct p54_rx_hdr */ + 16 )
+
+#define ISL38XX_DEV_FIRMWARE_ADDR 0x20000
+
+struct p54_common {
+	u32 rx_start;
+	u32 rx_end;
+	struct sk_buff_head tx_queue;
+	void (*tx)(struct ieee80211_hw *dev, struct p54_control_hdr *data,
+		   size_t len, int free_on_tx);
+	int (*open)(struct ieee80211_hw *dev);
+	void (*stop)(struct ieee80211_hw *dev);
+	int mode;
+	u8 *mac_addr;
+	struct pda_iq_autocal_entry *iq_autocal;
+	unsigned int iq_autocal_len;
+	struct pda_channel_output_limit *output_limit;
+	unsigned int output_limit_len;
+	struct pda_pa_curve_data *curve_data;
+	__le16 rxhw;
+	u8 version;
+	unsigned int tx_hdr_len;
+	void *cached_vdcf;
+	unsigned int fw_var;
+	/* FIXME: this channels/modes/rates stuff sucks */
+	struct ieee80211_channel channels[14];
+	struct ieee80211_rate rates[12];
+	struct ieee80211_hw_mode modes[2];
+	struct ieee80211_tx_queue_stats tx_stats;
+};
+
+int p54_rx(struct ieee80211_hw *dev, struct sk_buff *skb);
+void p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw);
+int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len);
+void p54_fill_eeprom_readback(struct p54_control_hdr *hdr);
+struct ieee80211_hw *p54_init_common(size_t priv_data_len);
+void p54_free_common(struct ieee80211_hw *dev);
+
+#endif /* PRISM54_H */

drivers/net/wireless/p54common.h

+#ifndef PRISM54COMMON_H
+#define PRISM54COMMON_H
+
+/*
+ * Common code specific definitions for mac80211 Prism54 drivers
+ *
+ * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ * Copyright (c) 2007, Christian Lamparter <chunkeey@web.de>
+ *
+ * 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.
+ */
+
+struct bootrec {
+	__le32 code;
+	__le32 len;
+	u32 data[0];
+} __attribute__((packed));
+
+struct bootrec_exp_if {
+	__le16 role;
+	__le16 if_id;
+	__le16 variant;
+	__le16 btm_compat;
+	__le16 top_compat;
+} __attribute__((packed));
+
+#define BR_CODE_MIN			0x80000000
+#define BR_CODE_COMPONENT_ID		0x80000001
+#define BR_CODE_COMPONENT_VERSION	0x80000002
+#define BR_CODE_DEPENDENT_IF		0x80000003
+#define BR_CODE_EXPOSED_IF		0x80000004
+#define BR_CODE_DESCR			0x80000101
+#define BR_CODE_MAX			0x8FFFFFFF
+#define BR_CODE_END_OF_BRA		0xFF0000FF
+#define LEGACY_BR_CODE_END_OF_BRA	0xFFFFFFFF
+
+#define FW_FMAC 0x464d4143
+#define FW_LM86 0x4c4d3836
+#define FW_LM87 0x4c4d3837
+#define FW_LM20 0x4c4d3230
+
+/* PDA defines are Copyright (C) 2005 Nokia Corporation (taken from islsm_pda.h) */
+
+struct pda_entry {
+	__le16 len;	/* includes both code and data */
+	__le16 code;
+	u8 data[0];
+} __attribute__ ((packed));
+
+struct eeprom_pda_wrap {
+	u32 magic;
+	u16 pad;
+	u16 len;
+	u32 arm_opcode;
+	u8 data[0];
+} __attribute__ ((packed));
+
+struct pda_iq_autocal_entry {
+        __le16 freq;
+        __le16 iq_param[4];
+} __attribute__ ((packed));
+
+struct pda_channel_output_limit {
+	__le16 freq;
+	u8 val_bpsk;
+	u8 val_qpsk;
+	u8 val_16qam;
+	u8 val_64qam;
+	u8 rate_set_mask;
+	u8 rate_set_size;
+} __attribute__ ((packed));
+
+struct pda_pa_curve_data_sample_rev0 {
+	u8 rf_power;
+	u8 pa_detector;
+	u8 pcv;
+} __attribute__ ((packed));
+
+struct pda_pa_curve_data_sample_rev1 {
+	u8 rf_power;
+	u8 pa_detector;
+	u8 data_barker;
+	u8 data_bpsk;
+	u8 data_qpsk;
+	u8 data_16qam;
+	u8 data_64qam;
+	u8 padding;
+} __attribute__ ((packed));
+
+struct pda_pa_curve_data {
+	u8 cal_method_rev;
+	u8 channels;
+	u8 points_per_channel;
+	u8 padding;
+	u8 data[0];
+} __attribute__ ((packed));
+
+/*
+ * this defines the PDR codes used to build PDAs as defined in document
+ * number 553155. The current implementation mirrors version 1.1 of the
+ * document and lists only PDRs supported by the ARM platform.
+ */
+
+/* common and choice range (0x0000 - 0x0fff) */
+#define PDR_END					0x0000
+#define PDR_MANUFACTURING_PART_NUMBER		0x0001
+#define PDR_PDA_VERSION				0x0002
+#define PDR_NIC_SERIAL_NUMBER			0x0003
+
+#define PDR_MAC_ADDRESS				0x0101
+#define PDR_REGULATORY_DOMAIN_LIST		0x0103
+#define PDR_TEMPERATURE_TYPE			0x0107
+
+#define PDR_PRISM_PCI_IDENTIFIER		0x0402
+
+/* ARM range (0x1000 - 0x1fff) */
+#define PDR_COUNTRY_INFORMATION			0x1000
+#define PDR_INTERFACE_LIST			0x1001
+#define PDR_HARDWARE_PLATFORM_COMPONENT_ID	0x1002
+#define PDR_OEM_NAME				0x1003
+#define PDR_PRODUCT_NAME			0x1004
+#define PDR_UTF8_OEM_NAME			0x1005
+#define PDR_UTF8_PRODUCT_NAME			0x1006
+#define PDR_COUNTRY_LIST			0x1007
+#define PDR_DEFAULT_COUNTRY			0x1008
+
+#define PDR_ANTENNA_GAIN			0x1100
+
+#define PDR_PRISM_INDIGO_PA_CALIBRATION_DATA	0x1901
+#define PDR_RSSI_LINEAR_APPROXIMATION		0x1902
+#define PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS	0x1903
+#define PDR_PRISM_PA_CAL_CURVE_DATA		0x1904
+#define PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND	0x1905
+#define PDR_PRISM_ZIF_TX_IQ_CALIBRATION		0x1906
+#define PDR_REGULATORY_POWER_LIMITS		0x1907
+#define PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED	0x1908
+#define PDR_RADIATED_TRANSMISSION_CORRECTION	0x1909
+#define PDR_PRISM_TX_IQ_CALIBRATION		0x190a
+
+/* reserved range (0x2000 - 0x7fff) */
+
+/* customer range (0x8000 - 0xffff) */
+#define PDR_BASEBAND_REGISTERS			0x8000
+#define PDR_PER_CHANNEL_BASEBAND_REGISTERS	0x8001
+
+/* stored in skb->cb */
+struct memrecord {
+	u32 start_addr;
+	u32 end_addr;
+	struct ieee80211_tx_control *control;
+};
+
+struct p54_eeprom_lm86 {
+	__le16 offset;
+	__le16 len;
+	u8 data[0];
+} __attribute__ ((packed));
+
+struct p54_rx_hdr {
+	__le16 magic;
+	__le16 len;
+	__le16 freq;
+	u8 antenna;
+	u8 rate;
+	u8 rssi;
+	u8 quality;
+	u16 unknown2;
+	__le64 timestamp;
+	u8 data[0];
+} __attribute__ ((packed));
+
+struct p54_frame_sent_hdr {
+	u8 status;
+	u8 retries;
+	__le16 ack_rssi;
+	__le16 seq;
+	u16 rate;
+} __attribute__ ((packed));
+
+struct p54_tx_control_allocdata {
+	u8 rateset[8];
+	u16 padding;
+	u8 wep_key_present;
+	u8 wep_key_len;
+	u8 wep_key[16];
+	__le32 frame_type;
+	u32 padding2;
+	__le16 magic4;
+	u8 antenna;
+	u8 output_power;
+	__le32 magic5;
+	u8 align[0];
+} __attribute__ ((packed));
+
+struct p54_tx_control_filter {
+	__le16 filter_type;
+	u8 dst[ETH_ALEN];
+	u8 src[ETH_ALEN];
+	u8 antenna;
+	u8 debug;
+	__le32 magic3;
+	u8 rates[8];	// FIXME: what's this for?
+	__le32 rx_addr;
+	__le16 max_rx;
+	__le16 rxhw;
+	__le16 magic8;
+	__le16 magic9;
+} __attribute__ ((packed));
+
+struct p54_tx_control_channel {
+	__le16 magic1;
+	__le16 magic2;
+	u8 padding1[20];
+	struct pda_iq_autocal_entry iq_autocal;
+	u8 pa_points_per_curve;
+	u8 val_barker;
+	u8 val_bpsk;
+	u8 val_qpsk;
+	u8 val_16qam;
+	u8 val_64qam;
+	struct pda_pa_curve_data_sample_rev1 curve_data[0];
+	/* additional padding/data after curve_data */
+} __attribute__ ((packed));
+
+struct p54_tx_control_led {
+	__le16 mode;
+	__le16 led_temporary;
+	__le16 led_permanent;
+	__le16 duration;
+} __attribute__ ((packed));
+
+struct p54_tx_vdcf_queues {
+	__le16 aifs;
+	__le16 cwmin;
+	__le16 cwmax;
+	__le16 txop;
+} __attribute__ ((packed));
+
+struct p54_tx_control_vdcf {
+	u8 padding;
+	u8 slottime;
+	u8 magic1;
+	u8 magic2;
+	struct p54_tx_vdcf_queues queue[8];
+	u8 pad2[4];
+	__le16 frameburst;
+} __attribute__ ((packed));
+
+static const struct ieee80211_rate p54_rates[] = {
+	{ .rate = 10,
+	  .val = 0,
+	  .val2 = 0x10,
+	  .flags = IEEE80211_RATE_CCK_2 },
+	{ .rate = 20,
+	  .val = 1,
+	  .val2 = 0x11,
+	  .flags = IEEE80211_RATE_CCK_2 },
+	{ .rate = 55,
+	  .val = 2,
+	  .val2 = 0x12,
+	  .flags = IEEE80211_RATE_CCK_2 },
+	{ .rate = 110,
+	  .val = 3,
+	  .val2 = 0x13,
+	  .flags = IEEE80211_RATE_CCK_2 },
+	{ .rate = 60,
+	  .val = 4,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 90,
+	  .val = 5,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 120,
+	  .val = 6,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 180,
+	  .val = 7,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 240,
+	  .val = 8,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 360,
+	  .val = 9,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 480,
+	  .val = 10,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 540,
+	  .val = 11,
+	  .flags = IEEE80211_RATE_OFDM },
+};
+
+// TODO: just generate this..
+static const struct ieee80211_channel p54_channels[] = {
+	{ .chan = 1,
+	  .freq = 2412},
+	{ .chan = 2,
+	  .freq = 2417},
+	{ .chan = 3,
+	  .freq = 2422},
+	{ .chan = 4,
+	  .freq = 2427},
+	{ .chan = 5,
+	  .freq = 2432},
+	{ .chan = 6,
+	  .freq = 2437},
+	{ .chan = 7,
+	  .freq = 2442},
+	{ .chan = 8,
+	  .freq = 2447},
+	{ .chan = 9,
+	  .freq = 2452},
+	{ .chan = 10,
+	  .freq = 2457},
+	{ .chan = 11,
+	  .freq = 2462},
+	{ .chan = 12,
+	  .freq = 2467},
+	{ .chan = 13,
+	  .freq = 2472},
+	{ .chan = 14,
+	  .freq = 2484}
+};
+
+#endif /* PRISM54COMMON_H */

drivers/net/wireless/p54pci.h

+#ifndef PRISM54PCI_H
+#define PRISM54PCI_H
+
+/*
+ * Defines for PCI 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.
+ */
+
+/* Device Interrupt register bits */
+#define ISL38XX_DEV_INT_RESET                   0x0001
+#define ISL38XX_DEV_INT_UPDATE                  0x0002
+#define ISL38XX_DEV_INT_WAKEUP                  0x0008
+#define ISL38XX_DEV_INT_SLEEP                   0x0010
+#define ISL38XX_DEV_INT_ABORT                   0x0020
+/* these two only used in USB */
+#define ISL38XX_DEV_INT_DATA                    0x0040
+#define ISL38XX_DEV_INT_MGMT                    0x0080
+
+#define ISL38XX_DEV_INT_PCIUART_CTS             0x4000
+#define ISL38XX_DEV_INT_PCIUART_DR              0x8000
+
+/* Interrupt Identification/Acknowledge/Enable register bits */
+#define ISL38XX_INT_IDENT_UPDATE		0x0002
+#define ISL38XX_INT_IDENT_INIT			0x0004
+#define ISL38XX_INT_IDENT_WAKEUP		0x0008
+#define ISL38XX_INT_IDENT_SLEEP			0x0010
+#define ISL38XX_INT_IDENT_PCIUART_CTS		0x4000
+#define ISL38XX_INT_IDENT_PCIUART_DR		0x8000
+
+/* Control/Status register bits */
+#define ISL38XX_CTRL_STAT_SLEEPMODE		0x00000200
+#define ISL38XX_CTRL_STAT_CLKRUN		0x00800000
+#define ISL38XX_CTRL_STAT_RESET			0x10000000
+#define ISL38XX_CTRL_STAT_RAMBOOT		0x20000000
+#define ISL38XX_CTRL_STAT_STARTHALTED		0x40000000
+#define ISL38XX_CTRL_STAT_HOST_OVERRIDE		0x80000000
+
+struct p54p_csr {
+	__le32 dev_int;
+	u8 unused_1[12];
+	__le32 int_ident;
+	__le32 int_ack;
+	__le32 int_enable;
+	u8 unused_2[4];
+	union {
+		__le32 ring_control_base;
+		__le32 gen_purp_com[2];
+	};
+	u8 unused_3[8];
+	__le32 direct_mem_base;
+	u8 unused_4[44];
+	__le32 dma_addr;
+	__le32 dma_len;
+	__le32 dma_ctrl;
+	u8 unused_5[12];
+	__le32 ctrl_stat;
+	u8 unused_6[1924];
+	u8 cardbus_cis[0x800];
+	u8 direct_mem_win[0x1000];
+} __attribute__ ((packed));
+
+/* usb backend only needs the register defines above */
+#ifndef PRISM54USB_H
+struct p54p_desc {
+	__le32 host_addr;
+	__le32 device_addr;
+	__le16 len;
+	__le16 flags;
+} __attribute__ ((packed));
+
+struct p54p_ring_control {
+	__le32 host_idx[4];
+	__le32 device_idx[4];
+	struct p54p_desc rx_data[8];
+	struct p54p_desc tx_data[32];
+	struct p54p_desc rx_mgmt[4];
+	struct p54p_desc tx_mgmt[4];
+} __attribute__ ((packed));
+
+#define P54P_READ(r) __raw_readl(&priv->map->r)
+#define P54P_WRITE(r, val) __raw_writel((__force u32)(val), &priv->map->r)
+
+struct p54p_priv {
+	struct p54_common common;
+	struct pci_dev *pdev;
+	struct p54p_csr __iomem *map;
+
+	spinlock_t lock;
+	struct p54p_ring_control *ring_control;
+	dma_addr_t ring_control_dma;
+	u32 rx_idx, tx_idx;
+	struct sk_buff *rx_buf[8];
+	void *tx_buf[32];
+	struct completion boot_comp;
+};
+
+#endif /* PRISM54USB_H */
+#endif /* PRISM54PCI_H */

drivers/net/wireless/p54usb.h

+#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 */