/*	$OpenBSD: if_wpireg.h,v 1.11 2006/08/28 19:47:43 damien Exp $	*/

/*-
 * Copyright (c) 2006
 *	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 WPI_TX_RING_COUNT	256
#define WPI_SVC_RING_COUNT	256
#define WPI_CMD_RING_COUNT	256
#define WPI_RX_RING_COUNT	64

/*
 * Rings must be aligned on a four 4K-pages boundary.
 * I had a hard time figuring this out.
 */
#define WPI_RING_DMA_ALIGN	0x4000

/* maximum scatter/gather */
#define WPI_MAX_SCATTER	4

/* maximum Rx buffer size */
#define WPI_RBUF_SIZE	(3 * 1024)	/* XXX 3000 but must be aligned! */

/*
 * Control and status registers.
 */
#define WPI_HWCONFIG		0x000
#define WPI_INTR		0x008
#define WPI_MASK		0x00c
#define WPI_INTR_STATUS		0x010
#define WPI_GPIO_STATUS		0x018
#define WPI_RESET		0x020
#define WPI_GPIO_CTL		0x024
#define WPI_EEPROM_CTL		0x02c
#define WPI_EEPROM_STATUS	0x030
#define WPI_UCODE_CLR		0x05c
#define WPI_TEMPERATURE		0x060
#define WPI_CHICKEN		0x100
#define WPI_PLL_CTL		0x20c
#define WPI_FW_TARGET		0x410
#define WPI_WRITE_MEM_ADDR  	0x444
#define WPI_READ_MEM_ADDR   	0x448
#define WPI_WRITE_MEM_DATA  	0x44c
#define WPI_READ_MEM_DATA   	0x450
#define WPI_TX_WIDX		0x460
#define WPI_TX_CTL(qid)		(0x940 + (qid) * 8)
#define WPI_TX_BASE(qid)	(0x944 + (qid) * 8)
#define WPI_TX_DESC(qid)	(0x980 + (qid) * 80)
#define WPI_RX_CONFIG		0xc00
#define WPI_RX_BASE		0xc04
#define WPI_RX_WIDX		0xc20
#define WPI_RX_RIDX_PTR		0xc24
#define WPI_RX_CTL		0xcc0
#define WPI_RX_STATUS		0xcc4
#define WPI_TX_CONFIG(qid)	(0xd00 + (qid) * 32)
#define WPI_TX_CREDIT(qid)	(0xd04 + (qid) * 32)
#define WPI_TX_STATE(qid)	(0xd08 + (qid) * 32)
#define WPI_TX_BASE_PTR		0xe80
#define WPI_MSG_CONFIG		0xe88
#define WPI_TX_STATUS		0xe90


/*
 * NIC internal memory offsets.
 */
#define WPI_MEM_MODE		0x2e00
#define WPI_MEM_RA		0x2e04
#define WPI_MEM_TXCFG		0x2e10
#define WPI_MEM_MAGIC4		0x2e14
#define WPI_MEM_MAGIC5		0x2e20
#define WPI_MEM_BYPASS1		0x2e2c
#define WPI_MEM_BYPASS2		0x2e30
#define WPI_MEM_CLOCK1		0x3004
#define WPI_MEM_CLOCK2		0x3008
#define WPI_MEM_POWER		0x300c
#define WPI_MEM_PCIDEV		0x3010
#define WPI_MEM_UCODE_CTL	0x3400
#define WPI_MEM_UCODE_SRC	0x3404
#define WPI_MEM_UCODE_DST	0x3408
#define WPI_MEM_UCODE_SIZE	0x340c
#define WPI_MEM_UCODE_BASE	0x3800


/* possible flags for register WPI_HWCONFIG */
#define WPI_HW_ALM_MB	(1 << 8)
#define WPI_HW_ALM_MM	(1 << 9)
#define WPI_HW_SKU_MRC	(1 << 10)
#define WPI_HW_REV_D	(1 << 11)
#define WPI_HW_TYPE_B	(1 << 12)

/* possible flags for registers WPI_READ_MEM_ADDR/WPI_WRITE_MEM_ADDR */
#define WPI_MEM_4	((sizeof (uint32_t) - 1) << 24)

/* possible values for WPI_FW_TARGET */
#define WPI_FW_TEXT	0x00000000
#define WPI_FW_DATA	0x00800000

/* possible flags for WPI_GPIO_STATUS */
#define WPI_POWERED		(1 << 9)

/* possible flags for register WPI_RESET */
#define WPI_NEVO_RESET		(1 << 0)
#define WPI_SW_RESET		(1 << 7)
#define WPI_MASTER_DISABLED	(1 << 8)
#define WPI_STOP_MASTER		(1 << 9)

/* possible flags for register WPI_GPIO_CTL */
#define WPI_GPIO_CLOCK		(1 << 0)
#define WPI_GPIO_INIT		(1 << 2)
#define WPI_GPIO_MAC		(1 << 3)
#define WPI_GPIO_SLEEP		(1 << 4)
#define WPI_GPIO_PWR_STATUS	0x07000000
#define WPI_GPIO_PWR_SLEEP	(4 << 24)

/* possible flags for register WPI_CHICKEN */
#define WPI_CHICKEN_RXNOLOS	(1 << 23)

/* possible flags for register WPI_PLL_CTL */
#define WPI_PLL_INIT		(1 << 24)

/* possible flags for register WPI_UCODE_CLR */
#define WPI_RADIO_OFF		(1 << 1)
#define WPI_DISABLE_CMD		(1 << 2)

/* possible flags for WPI_RX_STATUS */
#define	WPI_RX_IDLE	(1 << 24)

/* possible flags for register WPI_UC_CTL */
#define WPI_UC_RUN	(1 << 30)

/* possible flags for register WPI_INTR_CSR */
#define WPI_ALIVE_INTR	(1 << 0)
#define WPI_WAKEUP_INTR	(1 << 1)
#define WPI_SW_ERROR	(1 << 25)
#define WPI_TX_INTR	(1 << 27)
#define WPI_HW_ERROR	(1 << 29)
#define WPI_RX_INTR	(1 << 31)

#define WPI_INTR_MASK							\
	(WPI_SW_ERROR | WPI_HW_ERROR | WPI_TX_INTR | WPI_RX_INTR |	\
	 WPI_ALIVE_INTR | WPI_WAKEUP_INTR)

/* possible flags for register WPI_TX_STATUS */
#define WPI_TX_IDLE(qid)	(1 << ((qid) + 24) | 1 << ((qid) + 16))

/* possible flags for register WPI_EEPROM_CTL */
#define WPI_EEPROM_READY	(1 << 0)

/* possible flags for register WPI_EEPROM_STATUS */
#define WPI_EEPROM_VERSION	0x00000007
#define WPI_EEPROM_LOCKED	0x00000180


struct wpi_shared {
	uint32_t	txbase[8];
	uint32_t	next;
	uint32_t	reserved[2];
} __packed;

#define WPI_MAX_SEG_LEN	65520
struct wpi_tx_desc {
	uint32_t	flags;
#define WPI_PAD32(x)	((((x) + 3) & ~3) - (x))

	struct {
		uint32_t	addr;
		uint32_t	len;
	} __packed	segs[WPI_MAX_SCATTER];
	uint8_t		reserved[28];
} __packed;

struct wpi_tx_stat {
	uint8_t		nrts;
	uint8_t		ntries;
	uint8_t		nkill;
	uint8_t		rate;
	uint32_t	duration;
	uint32_t	status;
} __packed;

struct wpi_rx_desc {
	uint32_t	len;
	uint8_t		type;
#define WPI_UC_READY		  1
#define WPI_RX_DONE		 27
#define WPI_TX_DONE		 28
#define WPI_START_SCAN		130
#define WPI_STOP_SCAN		132
#define WPI_STATE_CHANGED	161

	uint8_t		flags;
	uint8_t		idx;
	uint8_t		qid;
} __packed;

struct wpi_rx_stat {
	uint8_t		len;
#define WPI_STAT_MAXLEN	20

	uint8_t		id;
	uint8_t		rssi;	/* received signal strength */
#define WPI_RSSI_OFFSET	95

	uint8_t		agc;	/* access gain control */
	uint16_t	signal;
	uint16_t	noise;
} __packed;

struct wpi_rx_head {
	uint16_t	chan;
	uint16_t	flags;
	uint8_t		reserved;
	uint8_t		rate;
	uint16_t	len;
} __packed;

struct wpi_rx_tail {
	uint32_t	flags;
#define WPI_RX_NO_CRC_ERR	(1 << 0)
#define WPI_RX_NO_OVFL_ERR	(1 << 1)
/* shortcut for the above */
#define WPI_RX_NOERROR		(WPI_RX_NO_CRC_ERR | WPI_RX_NO_OVFL_ERR)

	uint64_t	tstamp;
	uint32_t	tbeacon;
} __packed;

struct wpi_tx_cmd {
	uint8_t	code;
#define WPI_CMD_CONFIGURE	 16
#define WPI_CMD_ASSOCIATE	 17
#define WPI_CMD_TSF		 20
#define WPI_CMD_ADD_NODE	 24
#define WPI_CMD_TX_DATA		 28
#define WPI_CMD_MRR_SETUP	 71
#define WPI_CMD_SET_LED		 72
#define WPI_CMD_SET_POWER_MODE	119
#define WPI_CMD_SCAN		128
#define WPI_CMD_SET_BEACON	145
#define WPI_CMD_BLUETOOTH	155
#define WPI_CMD_TXPOWER		176

	uint8_t	flags;
	uint8_t	idx;
	uint8_t	qid;
	uint8_t	data[124];
} __packed;

/* structure for WPI_CMD_CONFIGURE */
struct wpi_config {
	uint8_t		myaddr[IEEE80211_ADDR_LEN];
	uint16_t	reserved1;
	uint8_t		bssid[IEEE80211_ADDR_LEN];
	uint16_t	reserved2;
	uint32_t	reserved3[2];
	uint8_t		mode;
#define WPI_MODE_HOSTAP		1
#define WPI_MODE_STA		3
#define WPI_MODE_IBSS		4
#define WPI_MODE_MONITOR	6

	uint8_t		reserved4[3];
	uint8_t		ofdm_mask;
	uint8_t		cck_mask;
	uint16_t	state;
#define WPI_STATE_ASSOCIATED	4

	uint32_t	flags;
#define WPI_CONFIG_24GHZ	(1 << 0)
#define WPI_CONFIG_CCK		(1 << 1)
#define WPI_CONFIG_AUTO		(1 << 2)
#define WPI_CONFIG_SHSLOT	(1 << 4)
#define WPI_CONFIG_SHPREAMBLE	(1 << 5)
#define WPI_CONFIG_NODIVERSITY	(1 << 7)
#define WPI_CONFIG_ANTENNA_A	(1 << 8)
#define WPI_CONFIG_ANTENNA_B	(1 << 9)
#define WPI_CONFIG_TSF		(1 << 15)

	uint32_t	filter;
#define WPI_FILTER_PROMISC	(1 << 0)
#define WPI_FILTER_CTL		(1 << 1)
#define WPI_FILTER_MULTICAST	(1 << 2)
#define WPI_FILTER_NODECRYPT	(1 << 3)
#define WPI_FILTER_BSS		(1 << 5)

	uint8_t		chan;
	uint8_t		reserved6[3];
} __packed;

/* structure for command WPI_CMD_ASSOCIATE */
struct wpi_assoc {
	uint32_t	flags;
	uint32_t	filter;
	uint8_t		ofdm_mask;
	uint8_t		cck_mask;
	uint16_t	reserved;
} __packed;

/* structure for command WPI_CMD_TSF */
struct wpi_cmd_tsf {
	uint64_t	tstamp;
	uint16_t	bintval;
	uint16_t	atim;
	uint32_t	binitval;
	uint16_t	lintval;
	uint16_t	reserved;
} __packed;

/* structure for WPI_CMD_ADD_NODE */
struct wpi_node_info {
	uint8_t		control;
#define WPI_NODE_UPDATE	(1 << 0)

	uint8_t		reserved1[3];
	uint8_t		bssid[IEEE80211_ADDR_LEN];
	uint16_t	reserved2;
	uint8_t		id;
#define WPI_ID_BSS		0
#define WPI_ID_BROADCAST	24

	uint8_t		sta_mask;
	uint16_t	reserved3;
	uint16_t	key_flags;
	uint8_t		tkip;
	uint8_t		reserved4;
	uint16_t	ttak[5];
	uint16_t	reserved5;
	uint8_t		key[IEEE80211_KEYBUF_SIZE];
	uint32_t	flags;
	uint32_t	mask;
	uint16_t	tid;
	uint8_t		rate;
	uint8_t		reserved6;
	uint8_t		add_imm;
	uint8_t		del_imm;
	uint16_t	add_imm_start;
} __packed;

/* structure for command WPI_CMD_TX_DATA */
struct wpi_cmd_data {
	uint16_t	len;
	uint16_t	lnext;
	uint32_t	flags;
#define WPI_TX_NEED_RTS		(1 <<  1)
#define WPI_TX_NEED_ACK		(1 <<  3)
#define WPI_TX_FULL_TXOP	(1 <<  7)
#define WPI_TX_AUTO_SEQ		(1 << 13)
#define WPI_TX_INSERT_TSTAMP	(1 << 16)

	uint8_t		rate;
	uint8_t		id;
	uint8_t		tid;
	uint8_t		security;
	uint8_t		key[IEEE80211_KEYBUF_SIZE];
	uint8_t		tkip[IEEE80211_WEP_MICLEN];
	uint32_t	fnext;
	uint32_t	lifetime;
	uint8_t		ofdm_mask;
	uint8_t		cck_mask;
	uint8_t		rts_ntries;
	uint8_t		data_ntries;
	uint16_t	timeout;
	uint16_t	txop;
	struct		ieee80211_frame wh;
} __packed;

/* structure for command WPI_CMD_SET_BEACON */
struct wpi_cmd_beacon {
	uint16_t	len;
	uint16_t	reserved1;
	uint32_t	flags;	/* same as wpi_cmd_data */
	uint8_t		rate;
	uint8_t		id;
	uint8_t		reserved2[30];
	uint32_t	lifetime;
	uint8_t		ofdm_mask;
	uint8_t		cck_mask;
	uint16_t	reserved3[3];
	uint16_t	tim;
	uint8_t		timsz;
	uint8_t		reserved4;
	struct		ieee80211_frame wh;
} __packed;

/* structure for WPI_CMD_MRR_SETUP */
struct wpi_mrr_setup {
	uint32_t	which;
#define WPI_MRR_CTL	0
#define WPI_MRR_DATA	1

	struct {
		uint8_t	plcp;
		uint8_t	flags;
		uint8_t	ntries;
		uint8_t	next;
#define WPI_OFDM6	0
#define WPI_OFDM54	7
#define WPI_CCK1	8
#define WPI_CCK2	9
#define WPI_CCK11	11

	} __packed	rates[WPI_CCK11 + 1];
} __packed;

/* structure for WPI_CMD_SET_LED */
struct wpi_cmd_led {
	uint32_t	unit;	/* multiplier (in usecs) */
	uint8_t		which;
#define WPI_LED_ACTIVITY	1
#define WPI_LED_LINK		2

	uint8_t		off;
	uint8_t		on;
	uint8_t		reserved;
} __packed;

/* structure for WPI_CMD_SET_POWER_MODE */
struct wpi_power {
	uint32_t	flags;
	uint32_t	rx_timeout;
	uint32_t	tx_timeout;
	uint32_t	sleep[5];
} __packed;

/* structure for command WPI_CMD_SCAN */
struct wpi_scan_hdr {
	uint8_t		len;
	uint8_t		first;
	uint8_t		reserved1;
	uint8_t		nchan;
	uint16_t	quiet;
	uint16_t	threshold;
	uint16_t	band;
#define WPI_SCAN_5GHZ	1

	uint16_t	reserved2[5];
	uint32_t	flags;
	uint32_t	filter;
	uint16_t	length;
	uint16_t	reserved4;
	uint32_t	magic1;
	uint8_t		rate;
	uint8_t		id;
	uint16_t	reserved5;
	uint32_t	reserved6[7];
	uint32_t	mask;
	uint32_t	reserved7[2];
	uint8_t		reserved8;
	uint8_t		esslen;
	uint8_t		essid[134];

	/* followed by probe request body */
	/* followed by nchan x wpi_scan_chan */
} __packed;

struct wpi_scan_chan {
	uint8_t		flags;
#define WPI_CHAN_ACTIVE	3

	uint8_t		chan;
	uint16_t	magic;		/* XXX */
	uint16_t	active;		/* msecs */
	uint16_t	passive;	/* msecs */
} __packed;

/* structure for WPI_CMD_BLUETOOTH */
struct wpi_bluetooth {
	uint8_t		flags;
	uint8_t		lead;
	uint8_t		kill;
	uint8_t		reserved;
	uint32_t	ack;
	uint32_t	cts;
} __packed;

/* structure for command WPI_CMD_TXPOWER */
struct wpi_txpower {
	uint32_t	reserved1;
	uint16_t	pwr1[14];
	uint32_t	reserved2[2];
	uint16_t	pwr2[14];
	uint32_t	reserved3[2];
} __packed;


/* firmware image header */
struct wpi_firmware_hdr {
	uint32_t	version;
	uint32_t	textsz;
	uint32_t	datasz;
	uint32_t	bootsz;
} __packed;

/* structure for WPI_UC_READY notification */
struct wpi_ucode_info {
	uint32_t	version;
	uint8_t		revision[8];
	uint8_t		type;
	uint8_t		subtype;
	uint16_t	reserved;
	uint32_t	logptr;
	uint32_t	errorptr;
	uint32_t	timestamp;
	uint32_t	valid;
} __packed;

/* structure for WPI_START_SCAN notification */
struct wpi_start_scan {
	uint64_t	tstamp;
	uint32_t	tbeacon;
	uint8_t		chan;
	uint8_t		band;
	uint16_t	reserved;
	uint32_t	status;
} __packed;

/* structure for WPI_STOP_SCAN notification */
struct wpi_stop_scan {
	uint8_t		nchan;
	uint8_t		status;
	uint8_t		reserved;
	uint8_t		chan;
	uint64_t	tsf;
} __packed;

#define WPI_EEPROM_MAC		0x015
#define WPI_EEPROM_REVISION	0x035
#define WPI_EEPROM_CAPABILITIES	0x045
#define WPI_EEPROM_TYPE		0x04a
#define WPI_EEPROM_PWR1		0x1ae
#define WPI_EEPROM_PWR2		0x1bc

#define WPI_READ(sc, reg)						\
	bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (reg))

#define WPI_WRITE(sc, reg, val)						\
	bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (reg), (val))

#define WPI_WRITE_REGION_4(sc, offset, datap, count)			\
	bus_space_write_region_4((sc)->sc_st, (sc)->sc_sh, (offset),	\
	    (datap), (count))
