/*	$OpenBSD: if_ralvar.h,v 1.2 2005/05/13 18:42:50 damien Exp $  */

/*-
 * Copyright (c) 2005
 *	Damien Bergamini <damien.bergamini@free.fr>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#define RAL_RX_LIST_COUNT	1
#define RAL_TX_LIST_COUNT	1

struct ural_rx_radiotap_header {
	struct ieee80211_radiotap_header wr_ihdr;
	uint8_t		wr_flags;
	uint16_t	wr_chan_freq;
	uint16_t	wr_chan_flags;
	uint8_t		wr_antenna;
	uint8_t		wr_antsignal;
} __packed;

#define RAL_RX_RADIOTAP_PRESENT						\
	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
	 (1 << IEEE80211_RADIOTAP_ANTENNA) |				\
	 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL))

struct ural_tx_radiotap_header {
	struct ieee80211_radiotap_header wt_ihdr;
	uint8_t		wt_flags;
	uint8_t		wt_rate;
	uint16_t	wt_chan_freq;
	uint16_t	wt_chan_flags;
	uint8_t		wt_antenna;
} __packed;

#define RAL_TX_RADIOTAP_PRESENT						\
	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
	 (1 << IEEE80211_RADIOTAP_RATE) |				\
	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
	 (1 << IEEE80211_RADIOTAP_ANTENNA))

struct ural_softc;

struct ural_tx_data {
	struct ural_softc	*sc;
	usbd_xfer_handle	xfer;
	uint8_t			*buf;
	struct mbuf		*m;
	struct ieee80211_node	*ni;
};

struct ural_rx_data {
	struct ural_softc	*sc;
	usbd_xfer_handle	xfer;
	uint8_t			*buf;
	struct mbuf		*m;
};

struct ural_softc {
	USBBASEDEVICE		sc_dev;
	struct ieee80211com	sc_ic;
	int			(*sc_newstate)(struct ieee80211com *,
				    enum ieee80211_state, int);

	usbd_device_handle	sc_udev;
	usbd_interface_handle	sc_iface;

	int			sc_rx_no;
	int			sc_tx_no;

	uint32_t		asic_rev;
	uint8_t			rf_rev;

	usbd_pipe_handle	sc_rx_pipeh;
	usbd_pipe_handle	sc_tx_pipeh;

	enum ieee80211_state	sc_state;
	struct usb_task		sc_task;

	struct ural_rx_data	rx_data[RAL_RX_LIST_COUNT];
	struct ural_tx_data	tx_data[RAL_TX_LIST_COUNT];
	int			tx_queued;

	struct timeout		scan_ch;

	int			sc_tx_timer;

	uint32_t		rf_regs[4];
	uint8_t			txpow[14];

	struct {
		uint8_t	val;
		uint8_t	reg;
	} __packed		bbp_prom[16];

	int			led_mode;
	int			hw_radio;
	int			rx_ant;
	int			tx_ant;
	int			nb_ant;

#if NBPFILTER > 0
	caddr_t			sc_drvbpf;

	union {
		struct ural_rx_radiotap_header th;
		uint8_t	pad[64];
	}			sc_rxtapu;
#define sc_rxtap	sc_rxtapu.th
	int			sc_rxtap_len;

	union {
		struct ural_tx_radiotap_header th;
		uint8_t	pad[64];
	}			sc_txtapu;
#define sc_txtap	sc_txtapu.th
	int			sc_txtap_len;
#endif
};