/*	$OpenBSD: if_runvar.h,v 1.8 2010/02/08 18:46:47 damien Exp $	*/

/*-
 * Copyright (c) 2008,2009 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 RUN_MAX_RXSZ			\
	4096
#if 0
	(sizeof (uint32_t) +		\
	 sizeof (struct rt2860_rxwi) +	\
	 sizeof (uint16_t) +		\
	 MCLBYTES +			\
	 sizeof (struct rt2870_rxd))
#endif
/* NB: "11" is the maximum number of padding bytes needed for Tx */
#define RUN_MAX_TXSZ			\
	(sizeof (struct rt2870_txd) +	\
	 sizeof (struct rt2860_rxwi) +	\
	 MCLBYTES + 11)

#define RUN_TX_TIMEOUT	5000	/* ms */

#define RUN_RX_RING_COUNT	1
#define RUN_TX_RING_COUNT	8

#define RT2870_WCID_MAX		253
#define RUN_AID2WCID(aid)	((aid) & 0xff)

struct run_rx_radiotap_header {
	struct ieee80211_radiotap_header wr_ihdr;
	uint8_t		wr_flags;
	uint8_t		wr_rate;
	uint16_t	wr_chan_freq;
	uint16_t	wr_chan_flags;
	uint8_t		wr_dbm_antsignal;
	uint8_t		wr_antenna;
	uint8_t		wr_antsignal;
} __packed;

#define RUN_RX_RADIOTAP_PRESENT				\
	(1 << IEEE80211_RADIOTAP_FLAGS |		\
	 1 << IEEE80211_RADIOTAP_RATE |			\
	 1 << IEEE80211_RADIOTAP_CHANNEL |		\
	 1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL |	\
	 1 << IEEE80211_RADIOTAP_ANTENNA |		\
	 1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL)

struct run_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_hwqueue;
} __packed;

#define RUN_TX_RADIOTAP_PRESENT				\
	(1 << IEEE80211_RADIOTAP_FLAGS |		\
	 1 << IEEE80211_RADIOTAP_RATE |			\
	 1 << IEEE80211_RADIOTAP_CHANNEL |		\
	 1 << IEEE80211_RADIOTAP_HWQUEUE)

struct run_softc;

struct run_tx_data {
	struct run_softc	*sc;
	usbd_xfer_handle	xfer;
	uint8_t			*buf;
	uint8_t			qid;
};

struct run_rx_data {
	struct run_softc	*sc;
	usbd_xfer_handle	xfer;
	uint8_t			*buf;
};

struct run_tx_ring {
	struct run_tx_data	data[RUN_TX_RING_COUNT];
	usbd_pipe_handle	pipeh;
	int			cur;
	int			queued;
	uint8_t			pipe_no;
};

struct run_rx_ring {
	struct run_rx_data	data[RUN_RX_RING_COUNT];
	usbd_pipe_handle	pipeh;
	uint8_t			pipe_no;
};

struct run_host_cmd {
	void	(*cb)(struct run_softc *, void *);
	uint8_t	data[256];
};

struct run_cmd_newstate {
	enum ieee80211_state	state;
	int			arg;
};

struct run_cmd_key {
	struct ieee80211_key	key;
	uint16_t		associd;
};

#define RUN_HOST_CMD_RING_COUNT	32
struct run_host_cmd_ring {
	struct run_host_cmd	cmd[RUN_HOST_CMD_RING_COUNT];
	int			cur;
	int			next;
	int			queued;
};

struct run_node {
	struct ieee80211_node	ni;
	uint8_t			ridx[IEEE80211_RATE_MAXSIZE];
	uint8_t			ctl_ridx[IEEE80211_RATE_MAXSIZE];
};

struct run_softc {
	struct device			sc_dev;
	struct ieee80211com		sc_ic;
	int				(*sc_newstate)(struct ieee80211com *,
					    enum ieee80211_state, int);
	int				(*sc_srom_read)(struct run_softc *,
					    uint16_t, uint16_t *);

	usbd_device_handle		sc_udev;
	usbd_interface_handle		sc_iface;

	uint16_t			mac_ver;
	uint16_t			mac_rev;
	uint8_t				rf_rev;
	uint8_t				freq;
	uint8_t				ntxchains;
	uint8_t				nrxchains;
	int				fixed_ridx;

	uint8_t				bbp25;
	uint8_t				bbp26;
	uint8_t				rf24_20mhz;
	uint8_t				rf24_40mhz;
	uint8_t				patch_dac;
	uint8_t				rfswitch;
	uint8_t				ext_2ghz_lna;
	uint8_t				ext_5ghz_lna;
	uint8_t				calib_2ghz;
	uint8_t				calib_5ghz;
	uint8_t				txmixgain_2ghz;
	uint8_t				txmixgain_5ghz;
	int8_t				txpow1[54];
	int8_t				txpow2[54];
	int8_t				rssi_2ghz[3];
	int8_t				rssi_5ghz[3];
	uint8_t				lna[4];

	struct {
		uint8_t	reg;
		uint8_t	val;
	}				bbp[10], rf[10];
	uint8_t				leds;
	uint16_t			led[3];
	uint32_t			txpow20mhz[5];
	uint32_t			txpow40mhz_2ghz[5];
	uint32_t			txpow40mhz_5ghz[5];

	struct usb_task			sc_task;

	struct ieee80211_amrr		amrr;
	struct ieee80211_amrr_node	amn;

	struct timeout			scan_to;
	struct timeout			calib_to;

	struct run_rx_ring		rxq;
	struct run_tx_ring		txq[4];
	struct run_host_cmd_ring	cmdq;
	uint8_t				qfullmsk;
	int				sc_tx_timer;

#if NBPFILTER > 0
	caddr_t				sc_drvbpf;

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

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