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rtwvar.h revision 1.17
      1 /* $NetBSD: rtwvar.h,v 1.17 2005/01/02 04:23:03 dyoung Exp $ */
      2 /*-
      3  * Copyright (c) 2004, 2005 David Young.  All rights reserved.
      4  *
      5  * Driver for the Realtek RTL8180 802.11 MAC/BBP by David Young.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of David Young may not be used to endorse or promote
     16  *    products derived from this software without specific prior
     17  *    written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY David Young ``AS IS'' AND ANY
     20  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
     22  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL David
     23  * Young BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
     25  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     27  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     28  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
     30  * OF SUCH DAMAGE.
     31  */
     32 
     33 #ifndef _DEV_IC_RTWVAR_H_
     34 #define	_DEV_IC_RTWVAR_H_
     35 
     36 #include <sys/queue.h>
     37 #include <sys/callout.h>
     38 
     39 #ifdef RTW_DEBUG
     40 #define	RTW_DEBUG_TUNE		0x000001
     41 #define	RTW_DEBUG_PKTFILT	0x000002
     42 #define	RTW_DEBUG_XMIT		0x000004
     43 #define	RTW_DEBUG_XMIT_DESC	0x000008
     44 #define	RTW_DEBUG_NODE		0x000010
     45 #define	RTW_DEBUG_PWR		0x000020
     46 #define	RTW_DEBUG_ATTACH	0x000040
     47 #define	RTW_DEBUG_REGDUMP	0x000080
     48 #define	RTW_DEBUG_ACCESS	0x000100
     49 #define	RTW_DEBUG_RESET		0x000200
     50 #define	RTW_DEBUG_INIT		0x000400
     51 #define	RTW_DEBUG_IOSTATE	0x000800
     52 #define	RTW_DEBUG_RECV		0x001000
     53 #define	RTW_DEBUG_RECV_DESC	0x002000
     54 #define	RTW_DEBUG_IO_KICK	0x004000
     55 #define	RTW_DEBUG_INTR		0x008000
     56 #define	RTW_DEBUG_PHY		0x010000
     57 #define	RTW_DEBUG_PHYIO		0x020000
     58 #define	RTW_DEBUG_PHYBITIO	0x040000
     59 #define	RTW_DEBUG_TIMEOUT	0x080000
     60 #define	RTW_DEBUG_BUGS		0x100000
     61 #define	RTW_DEBUG_MAX		0x1fffff
     62 
     63 extern int rtw_debug;
     64 #define RTW_DPRINTF(__flags, __x)	\
     65 	if ((rtw_debug & (__flags)) != 0) printf __x
     66 #define	DPRINTF(__sc, __flags, __x)				\
     67 	if (((__sc)->sc_ic.ic_if.if_flags & IFF_DEBUG) != 0)	\
     68 		RTW_DPRINTF(__flags, __x)
     69 #else /* RTW_DEBUG */
     70 #define RTW_DPRINTF(__flags, __x)
     71 #define	DPRINTF(__sc, __flags, __x)
     72 #endif /* RTW_DEBUG */
     73 
     74 enum rtw_locale {
     75 	RTW_LOCALE_USA = 0,
     76 	RTW_LOCALE_EUROPE,
     77 	RTW_LOCALE_JAPAN,
     78 	RTW_LOCALE_UNKNOWN
     79 };
     80 
     81 enum rtw_rfchipid {
     82 	RTW_RFCHIPID_RESERVED = 0,
     83 	RTW_RFCHIPID_INTERSIL = 1,
     84 	RTW_RFCHIPID_RFMD = 2,
     85 	RTW_RFCHIPID_PHILIPS = 3,
     86 	RTW_RFCHIPID_MAXIM = 4,
     87 	RTW_RFCHIPID_GCT = 5
     88 };
     89 
     90 /* sc_flags */
     91 #define RTW_F_ENABLED		0x00000001	/* chip is enabled */
     92 #define RTW_F_DIGPHY		0x00000002	/* digital PHY */
     93 #define RTW_F_DFLANTB		0x00000004	/* B antenna is default */
     94 #define RTW_F_ANTDIV		0x00000010	/* h/w antenna diversity */
     95 #define RTW_F_9356SROM		0x00000020	/* 93c56 SROM */
     96 #define RTW_F_SLEEP		0x00000040	/* chip is asleep */
     97 #define RTW_F_INVALID		0x00000080	/* chip is absent */
     98 	/* all PHY flags */
     99 #define RTW_F_ALLPHY		(RTW_F_DIGPHY|RTW_F_DFLANTB|RTW_F_ANTDIV)
    100 
    101 struct rtw_regs {
    102 	bus_space_tag_t		r_bt;
    103 	bus_space_handle_t	r_bh;
    104 };
    105 
    106 #define RTW_SR_GET(sr, ofs) \
    107     (((sr)->sr_content[(ofs)/2] >> (((ofs) % 2 == 0) ? 0 : 8)) & 0xff)
    108 
    109 #define RTW_SR_GET16(sr, ofs) \
    110     (RTW_SR_GET((sr), (ofs)) | (RTW_SR_GET((sr), (ofs) + 1) << 8))
    111 
    112 struct rtw_srom {
    113 	uint16_t		*sr_content;
    114 	uint16_t		sr_size;
    115 };
    116 
    117 struct rtw_rxsoft {
    118 	struct mbuf			*rs_mbuf;
    119 	bus_dmamap_t			rs_dmamap;
    120 };
    121 
    122 struct rtw_txsoft {
    123 	SIMPLEQ_ENTRY(rtw_txsoft)	ts_q;
    124 	struct mbuf			*ts_mbuf;
    125 	bus_dmamap_t			ts_dmamap;
    126 	struct ieee80211_node		*ts_ni;	/* destination node */
    127 	u_int				ts_first;	/* 1st hw descriptor */
    128 	u_int				ts_last;	/* last hw descriptor */
    129 	struct ieee80211_duration	ts_d0;
    130 	struct ieee80211_duration	ts_dn;
    131 };
    132 
    133 #define RTW_NTXPRI	4	/* number of Tx priorities */
    134 #define RTW_TXPRILO	0
    135 #define RTW_TXPRIMD	1
    136 #define RTW_TXPRIHI	2
    137 #define RTW_TXPRIBCN	3	/* beacon priority */
    138 
    139 #define RTW_MAXPKTSEGS		64	/* Max 64 segments per Tx packet */
    140 
    141 #define CASSERT(cond, complaint) complaint[(cond) ? 0 : -1] = complaint[(cond) ? 0 : -1]
    142 
    143 /* Note well: the descriptor rings must begin on RTW_DESC_ALIGNMENT
    144  * boundaries.  I allocate them consecutively from one buffer, so
    145  * just round up.
    146  */
    147 #define RTW_TXQLENLO	64	/* low-priority queue length */
    148 #define RTW_TXQLENMD	64	/* medium-priority */
    149 #define RTW_TXQLENHI	64	/* high-priority */
    150 #define RTW_TXQLENBCN	1	/* beacon */
    151 
    152 #define RTW_NTXDESCLO	RTW_TXQLENLO
    153 #define RTW_NTXDESCMD	RTW_TXQLENMD
    154 #define RTW_NTXDESCHI	RTW_TXQLENHI
    155 #define RTW_NTXDESCBCN	RTW_TXQLENBCN
    156 
    157 #define RTW_NTXDESCTOTAL	(RTW_NTXDESCLO + RTW_NTXDESCMD + \
    158 				 RTW_NTXDESCHI + RTW_NTXDESCBCN)
    159 
    160 #define RTW_RXQLEN	64
    161 
    162 struct rtw_rxdesc_blk {
    163 	struct rtw_rxdesc	*rdb_desc;
    164 	u_int			rdb_next;
    165 	u_int			rdb_ndesc;
    166 	bus_dma_tag_t		rdb_dmat;
    167 	bus_dmamap_t		rdb_dmamap;
    168 };
    169 
    170 struct rtw_txdesc_blk {
    171 	u_int			tdb_ndesc;
    172 	u_int			tdb_next;
    173 	u_int			tdb_nfree;
    174 	bus_dma_tag_t		tdb_dmat;
    175 	bus_dmamap_t		tdb_dmamap;
    176 	bus_addr_t		tdb_physbase;
    177 	bus_addr_t		tdb_ofs;
    178 	struct rtw_txdesc	*tdb_desc;
    179 };
    180 
    181 #define RTW_NEXT_IDX(__htc, __idx)	(((__idx) + 1) % (__htc)->tdb_ndesc)
    182 
    183 #define RTW_NEXT_DESC(__htc, __idx) \
    184     ((__htc)->tdb_physbase + \
    185      sizeof(struct rtw_txdesc) * RTW_NEXT_IDX((__htc), (__idx)))
    186 
    187 SIMPLEQ_HEAD(rtw_txq, rtw_txsoft);
    188 
    189 struct rtw_txsoft_blk {
    190 	/* dirty/free s/w descriptors */
    191 	struct rtw_txq		tsb_dirtyq;
    192 	struct rtw_txq		tsb_freeq;
    193 	u_int			tsb_ndesc;
    194 	int			tsb_tx_timer;
    195 	struct rtw_txsoft	*tsb_desc;
    196 };
    197 
    198 struct rtw_descs {
    199 	struct rtw_txdesc	hd_txlo[RTW_NTXDESCLO];
    200 	struct rtw_txdesc	hd_txmd[RTW_NTXDESCMD];
    201 	struct rtw_txdesc	hd_txhi[RTW_NTXDESCMD];
    202 	struct rtw_rxdesc	hd_rx[RTW_RXQLEN];
    203 	struct rtw_txdesc	hd_bcn[RTW_NTXDESCBCN];
    204 };
    205 #define RTW_DESC_OFFSET(ring, i)	offsetof(struct rtw_descs, ring[i])
    206 #define RTW_RING_OFFSET(ring)		RTW_DESC_OFFSET(ring, 0)
    207 #define RTW_RING_BASE(sc, ring)		((sc)->sc_desc_physaddr + \
    208 					 RTW_RING_OFFSET(ring))
    209 
    210 /* Radio capture format for RTL8180. */
    211 
    212 #define RTW_RX_RADIOTAP_PRESENT					\
    213 	((1 << IEEE80211_RADIOTAP_TSFT)			|	\
    214 	 (1 << IEEE80211_RADIOTAP_FLAGS)		|	\
    215 	 (1 << IEEE80211_RADIOTAP_RATE)			|	\
    216 	 (1 << IEEE80211_RADIOTAP_CHANNEL)		|	\
    217 	 (1 << IEEE80211_RADIOTAP_LOCK_QUALITY)		|	\
    218 	 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL)		|	\
    219 	 0)
    220 
    221 struct rtw_rx_radiotap_header {
    222 	struct ieee80211_radiotap_header	rr_ihdr;
    223 	uint64_t				rr_tsft;
    224 	uint8_t				rr_flags;
    225 	uint8_t				rr_rate;
    226 	uint16_t				rr_chan_freq;
    227 	uint16_t				rr_chan_flags;
    228 	uint16_t				rr_barker_lock;
    229 	uint8_t				rr_antsignal;
    230 } __attribute__((__packed__));
    231 
    232 #define RTW_TX_RADIOTAP_PRESENT				\
    233 	((1 << IEEE80211_RADIOTAP_FLAGS)	|	\
    234 	 (1 << IEEE80211_RADIOTAP_RATE)		|	\
    235 	 (1 << IEEE80211_RADIOTAP_CHANNEL)	|	\
    236 	 0)
    237 
    238 struct rtw_tx_radiotap_header {
    239 	struct ieee80211_radiotap_header	rt_ihdr;
    240 	uint8_t				rt_flags;
    241 	uint8_t				rt_rate;
    242 	uint16_t				rt_chan_freq;
    243 	uint16_t				rt_chan_flags;
    244 } __attribute__((__packed__));
    245 
    246 enum rtw_attach_state {FINISHED, FINISH_DESCMAP_LOAD, FINISH_DESCMAP_CREATE,
    247 	FINISH_DESC_MAP, FINISH_DESC_ALLOC, FINISH_RXMAPS_CREATE,
    248 	FINISH_TXMAPS_CREATE, FINISH_RESET, FINISH_READ_SROM, FINISH_PARSE_SROM,
    249 	FINISH_RF_ATTACH, FINISH_ID_STA, FINISH_TXDESCBLK_SETUP,
    250 	FINISH_TXCTLBLK_SETUP, DETACHED};
    251 
    252 struct rtw_hooks {
    253 	void			*rh_shutdown;	/* shutdown hook */
    254 	void			*rh_power;	/* power management hook */
    255 };
    256 
    257 struct rtw_mtbl {
    258 	int			(*mt_newstate)(struct ieee80211com *,
    259 					enum ieee80211_state, int);
    260 	void			(*mt_recv_mgmt)(struct ieee80211com *,
    261 				    struct mbuf *, struct ieee80211_node *,
    262 				    int, int, uint32_t);
    263 	struct ieee80211_node	*(*mt_node_alloc)(struct ieee80211com *);
    264 	void			(*mt_node_free)(struct ieee80211com *,
    265 					struct ieee80211_node *);
    266 };
    267 
    268 enum rtw_pwrstate { RTW_OFF = 0, RTW_SLEEP, RTW_ON };
    269 
    270 typedef void (*rtw_continuous_tx_cb_t)(void *arg, int);
    271 
    272 struct rtw_phy {
    273 	struct rtw_rf	*p_rf;
    274 	struct rtw_regs	*p_regs;
    275 };
    276 
    277 struct rtw_bbpset {
    278 	u_int	bb_antatten;
    279 	u_int	bb_chestlim;
    280 	u_int	bb_chsqlim;
    281 	u_int	bb_ifagcdet;
    282 	u_int	bb_ifagcini;
    283 	u_int	bb_ifagclimit;
    284 	u_int	bb_lnadet;
    285 	u_int	bb_sys1;
    286 	u_int	bb_sys2;
    287 	u_int	bb_sys3;
    288 	u_int	bb_trl;
    289 	u_int	bb_txagc;
    290 };
    291 
    292 struct rtw_rf {
    293 	void	(*rf_destroy)(struct rtw_rf *);
    294 	/* args: frequency, txpower, power state */
    295 	int	(*rf_init)(struct rtw_rf *, u_int, uint8_t,
    296 	                  enum rtw_pwrstate);
    297 	/* arg: power state */
    298 	int	(*rf_pwrstate)(struct rtw_rf *, enum rtw_pwrstate);
    299 	/* arg: frequency */
    300 	int	(*rf_tune)(struct rtw_rf *, u_int);
    301 	/* arg: txpower */
    302 	int	(*rf_txpower)(struct rtw_rf *, uint8_t);
    303 	rtw_continuous_tx_cb_t	rf_continuous_tx_cb;
    304 	void			*rf_continuous_tx_arg;
    305 	struct rtw_bbpset	rf_bbpset;
    306 };
    307 
    308 static __inline void
    309 rtw_rf_destroy(struct rtw_rf *rf)
    310 {
    311 	(*rf->rf_destroy)(rf);
    312 }
    313 
    314 static __inline int
    315 rtw_rf_init(struct rtw_rf *rf, u_int freq, uint8_t opaque_txpower,
    316     enum rtw_pwrstate power)
    317 {
    318 	return (*rf->rf_init)(rf, freq, opaque_txpower, power);
    319 }
    320 
    321 static __inline int
    322 rtw_rf_pwrstate(struct rtw_rf *rf, enum rtw_pwrstate power)
    323 {
    324 	return (*rf->rf_pwrstate)(rf, power);
    325 }
    326 
    327 static __inline int
    328 rtw_rf_tune(struct rtw_rf *rf, u_int freq)
    329 {
    330 	return (*rf->rf_tune)(rf, freq);
    331 }
    332 
    333 static __inline int
    334 rtw_rf_txpower(struct rtw_rf *rf, uint8_t opaque_txpower)
    335 {
    336 	return (*rf->rf_txpower)(rf, opaque_txpower);
    337 }
    338 
    339 typedef int (*rtw_rf_write_t)(struct rtw_regs *, enum rtw_rfchipid, u_int,
    340     uint32_t);
    341 
    342 struct rtw_rfbus {
    343 	struct rtw_regs		*b_regs;
    344 	rtw_rf_write_t		b_write;
    345 };
    346 
    347 static __inline int
    348 rtw_rfbus_write(struct rtw_rfbus *bus, enum rtw_rfchipid rfchipid, u_int addr,
    349     uint32_t val)
    350 {
    351 	return (*bus->b_write)(bus->b_regs, rfchipid, addr, val);
    352 }
    353 
    354 struct rtw_max2820 {
    355 	struct rtw_rf		mx_rf;
    356 	struct rtw_rfbus	mx_bus;
    357 	int			mx_is_a;	/* 1: MAX2820A/MAX2821A */
    358 };
    359 
    360 struct rtw_sa2400 {
    361 	struct rtw_rf		sa_rf;
    362 	struct rtw_rfbus	sa_bus;
    363 	int			sa_digphy;	/* 1: digital PHY */
    364 };
    365 
    366 typedef void (*rtw_pwrstate_t)(struct rtw_regs *, enum rtw_pwrstate, int, int);
    367 
    368 enum rtw_access {RTW_ACCESS_NONE = 0,
    369 		 RTW_ACCESS_CONFIG = 1,
    370 		 RTW_ACCESS_ANAPARM = 2};
    371 
    372 struct rtw_softc {
    373 	struct device		sc_dev;
    374 	struct ieee80211com	sc_ic;
    375 	struct rtw_regs		sc_regs;
    376 	bus_dma_tag_t		sc_dmat;
    377 	uint32_t		sc_flags;
    378 
    379 	enum rtw_attach_state	sc_attach_state;
    380 	enum rtw_rfchipid	sc_rfchipid;
    381 	enum rtw_locale		sc_locale;
    382 	uint8_t		sc_phydelay;
    383 
    384 	/* s/w Tx/Rx descriptors */
    385 	struct rtw_txsoft_blk	sc_txsoft_blk[RTW_NTXPRI];
    386 	struct rtw_txdesc_blk	sc_txdesc_blk[RTW_NTXPRI];
    387 
    388 	struct rtw_rxsoft	sc_rxsoft[RTW_RXQLEN];
    389 	struct rtw_rxdesc_blk	sc_rxdesc_blk;
    390 
    391 	struct rtw_descs	*sc_descs;
    392 
    393 	bus_dma_segment_t	sc_desc_segs;
    394 	int			sc_desc_nsegs;
    395 	bus_dmamap_t		sc_desc_dmamap;
    396 #define	sc_desc_physaddr sc_desc_dmamap->dm_segs[0].ds_addr
    397 
    398 	struct rtw_srom		sc_srom;
    399 
    400 	enum rtw_pwrstate	sc_pwrstate;
    401 
    402 	rtw_pwrstate_t		sc_pwrstate_cb;
    403 
    404 	struct rtw_rf		*sc_rf;
    405 
    406 	uint16_t		sc_inten;
    407 
    408 	/* interrupt acknowledge hook */
    409 	void (*sc_intr_ack) __P((struct rtw_regs *));
    410 
    411 	int			(*sc_enable)(struct rtw_softc *);
    412 	void			(*sc_disable)(struct rtw_softc *);
    413 	void			(*sc_power)(struct rtw_softc *, int);
    414 	struct rtw_mtbl		sc_mtbl;
    415 	struct rtw_hooks	sc_hooks;
    416 
    417 	caddr_t			sc_radiobpf;
    418 
    419 	struct callout		sc_scan_ch;
    420 	u_int			sc_cur_chan;
    421 
    422 	uint32_t		sc_tsfth;	/* most significant TSFT bits */
    423 	uint32_t		sc_rcr;		/* RTW_RCR */
    424 	uint8_t		sc_csthr;	/* carrier-sense threshold */
    425 
    426 	int			sc_do_tick;	/* indicate 1s ticks */
    427 	struct timeval		sc_tick0;	/* first tick */
    428 
    429 	uint8_t			sc_rev;		/* PCI/Cardbus revision */
    430 
    431 	uint32_t		sc_anaparm;	/* register RTW_ANAPARM */
    432 
    433 	union {
    434 		struct rtw_rx_radiotap_header	tap;
    435 		uint8_t			pad[64];
    436 	} sc_rxtapu;
    437 	union {
    438 		struct rtw_tx_radiotap_header	tap;
    439 		uint8_t			pad[64];
    440 	} sc_txtapu;
    441 	enum rtw_access		sc_access;
    442 };
    443 
    444 #define	sc_if		sc_ic.ic_if
    445 #define sc_rxtap	sc_rxtapu.tap
    446 #define sc_txtap	sc_txtapu.tap
    447 
    448 extern int rtw_host_rfio;
    449 
    450 void rtw_txdac_enable(struct rtw_softc *, int);
    451 void rtw_anaparm_enable(struct rtw_regs *, int);
    452 void rtw_config0123_enable(struct rtw_regs *, int);
    453 void rtw_continuous_tx_enable(struct rtw_softc *, int);
    454 void rtw_set_access(struct rtw_softc *, enum rtw_access);
    455 
    456 void rtw_attach(struct rtw_softc *);
    457 int rtw_detach(struct rtw_softc *);
    458 int rtw_intr(void *);
    459 
    460 void rtw_disable(struct rtw_softc *);
    461 int rtw_enable(struct rtw_softc *);
    462 
    463 int rtw_activate(struct device *, enum devact);
    464 void rtw_power(int, void *);
    465 void rtw_shutdown(void *);
    466 
    467 const char *rtw_pwrstate_string(enum rtw_pwrstate);
    468 
    469 #endif /* _DEV_IC_RTWVAR_H_ */
    470