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rtwvar.h revision 1.8
      1 /* $NetBSD: rtwvar.h,v 1.8 2004/12/25 06:58:37 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		0x00001
     41 #define	RTW_DEBUG_PKTFILT	0x00002
     42 #define	RTW_DEBUG_XMIT		0x00004
     43 #define	RTW_DEBUG_XMIT_DESC	0x00008
     44 #define	RTW_DEBUG_NODE		0x00010
     45 #define	RTW_DEBUG_PWR		0x00020
     46 #define	RTW_DEBUG_ATTACH	0x00040
     47 #define	RTW_DEBUG_REGDUMP	0x00080
     48 #define	RTW_DEBUG_ACCESS	0x00100
     49 #define	RTW_DEBUG_RESET		0x00200
     50 #define	RTW_DEBUG_INIT		0x00400
     51 #define	RTW_DEBUG_IOSTATE	0x00800
     52 #define	RTW_DEBUG_RECV		0x01000
     53 #define	RTW_DEBUG_RECV_DESC	0x02000
     54 #define	RTW_DEBUG_IO_KICK	0x04000
     55 #define	RTW_DEBUG_INTR		0x08000
     56 #define	RTW_DEBUG_PHY		0x10000
     57 #define	RTW_DEBUG_PHYIO		0x20000
     58 #define	RTW_DEBUG_PHYBITIO	0x40000
     59 #define	RTW_DEBUG_TIMEOUT	0x80000
     60 
     61 #define	RTW_DEBUG_MAX		0x7ffff
     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(__x)
     71 #define	DPRINTF(__sc, __x)
     72 #endif /* RTW_DEBUG */
     73 
     74 #if 0
     75 enum rtw_rftype {
     76 	RTW_RFTYPE_INTERSIL = 0,
     77 	RTW_RFTYPE_RFMD,
     78 	RTW_RFTYPE_PHILIPS,
     79 	RTW_RFTYPE_MAXIM
     80 };
     81 #endif
     82 
     83 enum rtw_locale {
     84 	RTW_LOCALE_USA = 0,
     85 	RTW_LOCALE_EUROPE,
     86 	RTW_LOCALE_JAPAN,
     87 	RTW_LOCALE_UNKNOWN
     88 };
     89 
     90 enum rtw_rfchipid {
     91 	RTW_RFCHIPID_RESERVED = 0,
     92 	RTW_RFCHIPID_INTERSIL = 1,
     93 	RTW_RFCHIPID_RFMD = 2,
     94 	RTW_RFCHIPID_PHILIPS = 3,
     95 	RTW_RFCHIPID_MAXIM = 4,
     96 	RTW_RFCHIPID_GCT = 5
     97 };
     98 
     99 /* sc_flags */
    100 #define RTW_F_ENABLED		0x00000001	/* chip is enabled */
    101 #define RTW_F_DIGPHY		0x00000002	/* digital PHY */
    102 #define RTW_F_DFLANTB		0x00000004	/* B antenna is default */
    103 #define RTW_F_ANTDIV		0x00000010	/* h/w antenna diversity */
    104 #define RTW_F_9356SROM		0x00000020	/* 93c56 SROM */
    105 #define RTW_F_SLEEP		0x00000040	/* chip is asleep */
    106 #define RTW_F_INVALID		0x00000080	/* chip is absent */
    107 	/* all PHY flags */
    108 #define RTW_F_ALLPHY		(RTW_F_DIGPHY|RTW_F_DFLANTB|RTW_F_ANTDIV)
    109 
    110 struct rtw_regs {
    111 	bus_space_tag_t		r_bt;
    112 	bus_space_handle_t	r_bh;
    113 };
    114 
    115 #define RTW_SR_GET(sr, ofs) \
    116     (((sr)->sr_content[(ofs)/2] >> (((ofs) % 2 == 0) ? 0 : 8)) & 0xff)
    117 
    118 #define RTW_SR_GET16(sr, ofs) \
    119     (RTW_SR_GET((sr), (ofs)) | (RTW_SR_GET((sr), (ofs) + 1) << 8))
    120 
    121 struct rtw_srom {
    122 	u_int16_t		*sr_content;
    123 	u_int16_t		sr_size;
    124 };
    125 
    126 struct rtw_rxctl {
    127 	struct mbuf			*srx_mbuf;
    128 	bus_dmamap_t			srx_dmamap;
    129 };
    130 
    131 struct rtw_txctl {
    132 	SIMPLEQ_ENTRY(rtw_txctl)	stx_q;
    133 	struct mbuf			*stx_mbuf;
    134 	bus_dmamap_t			stx_dmamap;
    135 	struct ieee80211_node		*stx_ni;	/* destination node */
    136 	u_int				stx_first;	/* 1st hw descriptor */
    137 	u_int				stx_last;	/* last hw descriptor */
    138 	struct ieee80211_duration	stx_d0;
    139 	struct ieee80211_duration	stx_dn;
    140 };
    141 
    142 #define RTW_NTXPRI	4	/* number of Tx priorities */
    143 #define RTW_TXPRILO	0
    144 #define RTW_TXPRIMD	1
    145 #define RTW_TXPRIHI	2
    146 #define RTW_TXPRIBCN	3	/* beacon priority */
    147 
    148 #define RTW_MAXPKTSEGS		64	/* Max 64 segments per Tx packet */
    149 
    150 #define CASSERT(cond, complaint) complaint[(cond) ? 0 : -1] = complaint[(cond) ? 0 : -1]
    151 
    152 /* Note well: the descriptor rings must begin on RTW_DESC_ALIGNMENT
    153  * boundaries.  I allocate them consecutively from one buffer, so
    154  * just round up.
    155  */
    156 #define RTW_TXQLENLO	64	/* low-priority queue length */
    157 #define RTW_TXQLENMD	64	/* medium-priority */
    158 #define RTW_TXQLENHI	64	/* high-priority */
    159 #define RTW_TXQLENBCN	1	/* beacon */
    160 
    161 #define RTW_NTXDESCLO	RTW_TXQLENLO
    162 #define RTW_NTXDESCMD	RTW_TXQLENMD
    163 #define RTW_NTXDESCHI	RTW_TXQLENHI
    164 #define RTW_NTXDESCBCN	RTW_TXQLENBCN
    165 
    166 #define RTW_NTXDESCTOTAL	(RTW_NTXDESCLO + RTW_NTXDESCMD + \
    167 				 RTW_NTXDESCHI + RTW_NTXDESCBCN)
    168 
    169 #define RTW_RXQLEN	64
    170 
    171 struct rtw_txdesc_blk {
    172 	u_int			htc_ndesc;
    173 	u_int			htc_next;
    174 	u_int			htc_nfree;
    175 	bus_addr_t		htc_physbase;
    176 	bus_addr_t		htc_ofs;
    177 	struct rtw_txdesc	*htc_desc;
    178 };
    179 
    180 #define RTW_NEXT_IDX(__htc, __idx)	(((__idx) + 1) % (__htc)->htc_ndesc)
    181 
    182 #define RTW_NEXT_DESC(__htc, __idx) \
    183     ((__htc)->htc_physbase + \
    184      sizeof(struct rtw_txdesc) * RTW_NEXT_IDX((__htc), (__idx)))
    185 
    186 SIMPLEQ_HEAD(rtw_txq, rtw_txctl);
    187 
    188 struct rtw_txctl_blk {
    189 	/* dirty/free s/w descriptors */
    190 	struct rtw_txq		stc_dirtyq;
    191 	struct rtw_txq		stc_freeq;
    192 	u_int			stc_ndesc;
    193 	int			stc_tx_timer;
    194 	struct rtw_txctl	*stc_desc;
    195 };
    196 
    197 struct rtw_descs {
    198 	struct rtw_txdesc	hd_txlo[RTW_NTXDESCLO];
    199 	struct rtw_txdesc	hd_txmd[RTW_NTXDESCMD];
    200 	struct rtw_txdesc	hd_txhi[RTW_NTXDESCMD];
    201 	struct rtw_rxdesc	hd_rx[RTW_RXQLEN];
    202 	struct rtw_txdesc	hd_bcn[RTW_NTXDESCBCN];
    203 };
    204 #define RTW_DESC_OFFSET(ring, i)	offsetof(struct rtw_descs, ring[i])
    205 #define RTW_RING_OFFSET(ring)		RTW_DESC_OFFSET(ring, 0)
    206 #define RTW_RING_BASE(sc, ring)		((sc)->sc_desc_physaddr + \
    207 					 RTW_RING_OFFSET(ring))
    208 
    209 /* Radio capture format for RTL8180. */
    210 
    211 #define RTW_RX_RADIOTAP_PRESENT	\
    212 	((1 << IEEE80211_RADIOTAP_FLAGS) | (1 << IEEE80211_RADIOTAP_RATE) | \
    213 	 (1 << IEEE80211_RADIOTAP_CHANNEL) | \
    214 	 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL))
    215 
    216 struct rtw_rx_radiotap_header {
    217 	struct ieee80211_radiotap_header	rr_ihdr;
    218 	u_int8_t				rr_flags;
    219 	u_int8_t				rr_rate;
    220 	u_int16_t				rr_chan_freq;
    221 	u_int16_t				rr_chan_flags;
    222 	u_int8_t				rr_antsignal;
    223 } __attribute__((__packed__));
    224 
    225 #define RTW_TX_RADIOTAP_PRESENT	((1 << IEEE80211_RADIOTAP_FLAGS) | \
    226 				 (1 << IEEE80211_RADIOTAP_RATE) | \
    227 				 (1 << IEEE80211_RADIOTAP_CHANNEL))
    228 
    229 struct rtw_tx_radiotap_header {
    230 	struct ieee80211_radiotap_header	rt_ihdr;
    231 	u_int8_t				rt_flags;
    232 	u_int8_t				rt_rate;
    233 	u_int16_t				rt_chan_freq;
    234 	u_int16_t				rt_chan_flags;
    235 } __attribute__((__packed__));
    236 
    237 enum rtw_attach_state {FINISHED, FINISH_DESCMAP_LOAD, FINISH_DESCMAP_CREATE,
    238 	FINISH_DESC_MAP, FINISH_DESC_ALLOC, FINISH_RXMAPS_CREATE,
    239 	FINISH_TXMAPS_CREATE, FINISH_RESET, FINISH_READ_SROM, FINISH_PARSE_SROM,
    240 	FINISH_RF_ATTACH, FINISH_ID_STA, FINISH_TXDESCBLK_SETUP,
    241 	FINISH_TXCTLBLK_SETUP, DETACHED};
    242 
    243 struct rtw_hooks {
    244 	void			*rh_shutdown;	/* shutdown hook */
    245 	void			*rh_power;	/* power management hook */
    246 };
    247 
    248 struct rtw_mtbl {
    249 	int			(*mt_newstate)(struct ieee80211com *,
    250 					enum ieee80211_state, int);
    251 	void			(*mt_recv_mgmt)(struct ieee80211com *,
    252 				    struct mbuf *, struct ieee80211_node *,
    253 				    int, int, u_int32_t);
    254 	struct ieee80211_node	*(*mt_node_alloc)(struct ieee80211com *);
    255 	void			(*mt_node_free)(struct ieee80211com *,
    256 					struct ieee80211_node *);
    257 };
    258 
    259 enum rtw_pwrstate { RTW_OFF = 0, RTW_SLEEP, RTW_ON };
    260 
    261 typedef void (*rtw_continuous_tx_cb_t)(void *arg, int);
    262 
    263 struct rtw_phy {
    264 	struct rtw_rf	*p_rf;
    265 	struct rtw_regs	*p_regs;
    266 };
    267 
    268 struct rtw_bbpset {
    269 	u_int	bb_antatten;
    270 	u_int	bb_chestlim;
    271 	u_int	bb_chsqlim;
    272 	u_int	bb_ifagcdet;
    273 	u_int	bb_ifagcini;
    274 	u_int	bb_ifagclimit;
    275 	u_int	bb_lnadet;
    276 	u_int	bb_sys1;
    277 	u_int	bb_sys2;
    278 	u_int	bb_sys3;
    279 	u_int	bb_trl;
    280 	u_int	bb_txagc;
    281 };
    282 
    283 struct rtw_rf {
    284 	void	(*rf_destroy)(struct rtw_rf *);
    285 	/* args: frequency, txpower, power state */
    286 	int	(*rf_init)(struct rtw_rf *, u_int, u_int8_t,
    287 	                  enum rtw_pwrstate);
    288 	/* arg: power state */
    289 	int	(*rf_pwrstate)(struct rtw_rf *, enum rtw_pwrstate);
    290 	/* arg: frequency */
    291 	int	(*rf_tune)(struct rtw_rf *, u_int);
    292 	/* arg: txpower */
    293 	int	(*rf_txpower)(struct rtw_rf *, u_int8_t);
    294 	rtw_continuous_tx_cb_t	rf_continuous_tx_cb;
    295 	void			*rf_continuous_tx_arg;
    296 	struct rtw_bbpset	rf_bbpset;
    297 };
    298 
    299 static __inline void
    300 rtw_rf_destroy(struct rtw_rf *rf)
    301 {
    302 	(*rf->rf_destroy)(rf);
    303 }
    304 
    305 static __inline int
    306 rtw_rf_init(struct rtw_rf *rf, u_int freq, u_int8_t opaque_txpower,
    307     enum rtw_pwrstate power)
    308 {
    309 	return (*rf->rf_init)(rf, freq, opaque_txpower, power);
    310 }
    311 
    312 static __inline int
    313 rtw_rf_pwrstate(struct rtw_rf *rf, enum rtw_pwrstate power)
    314 {
    315 	return (*rf->rf_pwrstate)(rf, power);
    316 }
    317 
    318 static __inline int
    319 rtw_rf_tune(struct rtw_rf *rf, u_int freq)
    320 {
    321 	return (*rf->rf_tune)(rf, freq);
    322 }
    323 
    324 static __inline int
    325 rtw_rf_txpower(struct rtw_rf *rf, u_int8_t opaque_txpower)
    326 {
    327 	return (*rf->rf_txpower)(rf, opaque_txpower);
    328 }
    329 
    330 typedef int (*rtw_rf_write_t)(struct rtw_regs *, enum rtw_rfchipid, u_int,
    331     u_int32_t);
    332 
    333 struct rtw_rfbus {
    334 	struct rtw_regs		*b_regs;
    335 	rtw_rf_write_t		b_write;
    336 };
    337 
    338 static __inline int
    339 rtw_rfbus_write(struct rtw_rfbus *bus, enum rtw_rfchipid rfchipid, u_int addr,
    340     u_int32_t val)
    341 {
    342 	return (*bus->b_write)(bus->b_regs, rfchipid, addr, val);
    343 }
    344 
    345 struct rtw_max2820 {
    346 	struct rtw_rf		mx_rf;
    347 	struct rtw_rfbus	mx_bus;
    348 	int			mx_is_a;	/* 1: MAX2820A/MAX2821A */
    349 };
    350 
    351 struct rtw_sa2400 {
    352 	struct rtw_rf		sa_rf;
    353 	struct rtw_rfbus	sa_bus;
    354 	int			sa_digphy;	/* 1: digital PHY */
    355 };
    356 
    357 typedef void (*rtw_pwrstate_t)(struct rtw_regs *, enum rtw_pwrstate, int, int);
    358 
    359 enum rtw_access {RTW_ACCESS_NONE = 0,
    360 		 RTW_ACCESS_CONFIG = 1,
    361 		 RTW_ACCESS_ANAPARM = 2};
    362 
    363 struct rtw_softc {
    364 	struct device		sc_dev;
    365 	struct ieee80211com	sc_ic;
    366 	struct rtw_regs		sc_regs;
    367 	bus_dma_tag_t		sc_dmat;
    368 	u_int32_t		sc_flags;
    369 
    370 #if 0
    371 	enum rtw_rftype		sc_rftype;
    372 #endif
    373 	enum rtw_attach_state	sc_attach_state;
    374 	enum rtw_rfchipid	sc_rfchipid;
    375 	enum rtw_locale		sc_locale;
    376 	u_int8_t		sc_phydelay;
    377 
    378 	/* s/w Tx/Rx descriptors */
    379 	struct rtw_txctl_blk	sc_txctl_blk[RTW_NTXPRI];
    380 	struct rtw_rxctl	sc_rxctl[RTW_RXQLEN];
    381 	u_int			sc_txq;
    382 	u_int			sc_txnext;
    383 
    384 	struct rtw_txdesc_blk	sc_txdesc_blk[RTW_NTXPRI];
    385 	struct rtw_rxdesc	*sc_rxdesc;
    386 	u_int			sc_rxnext;
    387 
    388 	struct rtw_descs	*sc_descs;
    389 
    390 	bus_dma_segment_t	sc_desc_segs;
    391 	int			sc_desc_nsegs;
    392 	bus_dmamap_t		sc_desc_dmamap;
    393 #define	sc_desc_physaddr sc_desc_dmamap->dm_segs[0].ds_addr
    394 
    395 	struct rtw_srom		sc_srom;
    396 
    397 	enum rtw_pwrstate	sc_pwrstate;
    398 
    399 	rtw_pwrstate_t		sc_pwrstate_cb;
    400 
    401 	struct rtw_rf		*sc_rf;
    402 
    403 	u_int16_t		sc_inten;
    404 
    405 	/* interrupt acknowledge hook */
    406 	void (*sc_intr_ack) __P((struct rtw_regs *));
    407 
    408 	int			(*sc_enable)(struct rtw_softc *);
    409 	void			(*sc_disable)(struct rtw_softc *);
    410 	void			(*sc_power)(struct rtw_softc *, int);
    411 	struct rtw_mtbl		sc_mtbl;
    412 	struct rtw_hooks	sc_hooks;
    413 
    414 	caddr_t			sc_radiobpf;
    415 
    416 	struct callout		sc_scan_ch;
    417 	u_int			sc_cur_chan;
    418 
    419 	u_int32_t		sc_tsfth;	/* most significant TSFT bits */
    420 	u_int32_t		sc_rcr;		/* RTW_RCR */
    421 	u_int8_t		sc_csthr;	/* carrier-sense threshold */
    422 
    423 	int			sc_do_tick;	/* indicate 1s ticks */
    424 	struct timeval		sc_tick0;	/* first tick */
    425 
    426 	uint8_t			sc_rev;		/* PCI/Cardbus revision */
    427 
    428 	uint32_t		sc_anaparm;	/* register RTW_ANAPARM */
    429 
    430 	union {
    431 		struct rtw_rx_radiotap_header	tap;
    432 		u_int8_t			pad[64];
    433 	} sc_rxtapu;
    434 	union {
    435 		struct rtw_tx_radiotap_header	tap;
    436 		u_int8_t			pad[64];
    437 	} sc_txtapu;
    438 	enum rtw_access		sc_access;
    439 };
    440 
    441 #define	sc_if		sc_ic.ic_if
    442 #define sc_rxtap	sc_rxtapu.tap
    443 #define sc_txtap	sc_txtapu.tap
    444 
    445 extern int rtw_host_rfio;
    446 extern int rtw_flush_rfio;
    447 extern int rtw_rfio_delay;
    448 
    449 void rtw_txdac_enable(struct rtw_softc *, int);
    450 void rtw_anaparm_enable(struct rtw_regs *, int);
    451 void rtw_config0123_enable(struct rtw_regs *, int);
    452 void rtw_continuous_tx_enable(struct rtw_softc *, int);
    453 void rtw_set_access(struct rtw_softc *, enum rtw_access);
    454 
    455 void rtw_attach(struct rtw_softc *);
    456 int rtw_detach(struct rtw_softc *);
    457 int rtw_intr(void *);
    458 
    459 void rtw_disable(struct rtw_softc *);
    460 int rtw_enable(struct rtw_softc *);
    461 
    462 int rtw_activate(struct device *, enum devact);
    463 void rtw_power(int, void *);
    464 void rtw_shutdown(void *);
    465 
    466 const char *rtw_pwrstate_string(enum rtw_pwrstate);
    467 
    468 #endif /* _DEV_IC_RTWVAR_H_ */
    469