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rtwvar.h revision 1.6
      1 /* $NetBSD: rtwvar.h,v 1.6 2004/12/20 23:05:41 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 extern int rtw_debug;
     41 #define RTW_DPRINTF(x)	if (rtw_debug > 0) printf x
     42 #define RTW_DPRINTF2(x)	if (rtw_debug > 1) printf x
     43 #define RTW_DPRINTF3(x)	if (rtw_debug > 2) printf x
     44 #define	DPRINTF(sc, x)	if ((sc)->sc_ic.ic_if.if_flags & IFF_DEBUG) printf x
     45 #define	DPRINTF2(sc, x)	if ((sc)->sc_ic.ic_if.if_flags & IFF_DEBUG) RTW_DPRINTF2(x)
     46 #define	DPRINTF3(sc, x)	if ((sc)->sc_ic.ic_if.if_flags & IFF_DEBUG) RTW_DPRINTF3(x)
     47 #else /* RTW_DEBUG */
     48 #define RTW_DPRINTF(x)
     49 #define RTW_DPRINTF2(x)
     50 #define RTW_DPRINTF3(x)
     51 #define	DPRINTF(sc, x)
     52 #define	DPRINTF2(sc, x)
     53 #define	DPRINTF3(sc, x)
     54 #endif /* RTW_DEBUG */
     55 
     56 #if 0
     57 enum rtw_rftype {
     58 	RTW_RFTYPE_INTERSIL = 0,
     59 	RTW_RFTYPE_RFMD,
     60 	RTW_RFTYPE_PHILIPS,
     61 	RTW_RFTYPE_MAXIM
     62 };
     63 #endif
     64 
     65 enum rtw_locale {
     66 	RTW_LOCALE_USA = 0,
     67 	RTW_LOCALE_EUROPE,
     68 	RTW_LOCALE_JAPAN,
     69 	RTW_LOCALE_UNKNOWN
     70 };
     71 
     72 enum rtw_rfchipid {
     73 	RTW_RFCHIPID_RESERVED = 0,
     74 	RTW_RFCHIPID_INTERSIL = 1,
     75 	RTW_RFCHIPID_RFMD = 2,
     76 	RTW_RFCHIPID_PHILIPS = 3,
     77 	RTW_RFCHIPID_MAXIM = 4,
     78 	RTW_RFCHIPID_GCT = 5
     79 };
     80 
     81 /* sc_flags */
     82 #define RTW_F_ENABLED		0x00000001	/* chip is enabled */
     83 #define RTW_F_DIGPHY		0x00000002	/* digital PHY */
     84 #define RTW_F_DFLANTB		0x00000004	/* B antenna is default */
     85 #define RTW_F_ANTDIV		0x00000010	/* h/w antenna diversity */
     86 #define RTW_F_9356SROM		0x00000020	/* 93c56 SROM */
     87 #define RTW_F_SLEEP		0x00000040	/* chip is asleep */
     88 #define RTW_F_INVALID		0x00000080	/* chip is absent */
     89 	/* all PHY flags */
     90 #define RTW_F_ALLPHY		(RTW_F_DIGPHY|RTW_F_DFLANTB|RTW_F_ANTDIV)
     91 
     92 struct rtw_regs {
     93 	bus_space_tag_t		r_bt;
     94 	bus_space_handle_t	r_bh;
     95 };
     96 
     97 #define RTW_SR_GET(sr, ofs) \
     98     (((sr)->sr_content[(ofs)/2] >> (((ofs) % 2 == 0) ? 0 : 8)) & 0xff)
     99 
    100 #define RTW_SR_GET16(sr, ofs) \
    101     (RTW_SR_GET((sr), (ofs)) | (RTW_SR_GET((sr), (ofs) + 1) << 8))
    102 
    103 struct rtw_srom {
    104 	u_int16_t		*sr_content;
    105 	u_int16_t		sr_size;
    106 };
    107 
    108 struct rtw_rxctl {
    109 	struct mbuf			*srx_mbuf;
    110 	bus_dmamap_t			srx_dmamap;
    111 };
    112 
    113 struct rtw_txctl {
    114 	SIMPLEQ_ENTRY(rtw_txctl)	stx_q;
    115 	struct mbuf			*stx_mbuf;
    116 	bus_dmamap_t			stx_dmamap;
    117 	struct ieee80211_node		*stx_ni;	/* destination node */
    118 	u_int				stx_first;	/* 1st hw descriptor */
    119 	u_int				stx_last;	/* last hw descriptor */
    120 	struct ieee80211_duration	stx_d0;
    121 	struct ieee80211_duration	stx_dn;
    122 };
    123 
    124 #define RTW_NTXPRI	4	/* number of Tx priorities */
    125 #define RTW_TXPRILO	0
    126 #define RTW_TXPRIMD	1
    127 #define RTW_TXPRIHI	2
    128 #define RTW_TXPRIBCN	3	/* beacon priority */
    129 
    130 #define RTW_MAXPKTSEGS		32	/* max 32 segments per Tx packet */
    131 
    132 #define CASSERT(cond, complaint) complaint[(cond) ? 0 : -1] = complaint[(cond) ? 0 : -1]
    133 
    134 #define RTW_NTXDESC_ROUNDUP(n) \
    135     roundup(n, RTW_DESC_ALIGNMENT / sizeof(struct rtw_txdesc))
    136 
    137 #define RTW_TXQLEN_ROUNDUP(n) \
    138     (RTW_NTXDESC_ROUNDUP(n * RTW_MAXPKTSEGS) / RTW_MAXPKTSEGS)
    139 
    140 #define RTW_RXQLEN_ROUNDUP(n) \
    141     roundup(n, RTW_DESC_ALIGNMENT / sizeof(struct rtw_rxctl))
    142 
    143 /* The descriptor rings must begin on RTW_DESC_ALIGNMENT boundaries.
    144  * I allocate them consecutively from one buffer, so just round up.
    145  */
    146 #define RTW_TXQLENLO	RTW_TXQLEN_ROUNDUP(64)	/* low-priority queue length */
    147 #define RTW_TXQLENMD	RTW_TXQLEN_ROUNDUP(32)	/* medium-priority */
    148 #define RTW_TXQLENHI	RTW_TXQLEN_ROUNDUP(16)	/* high-priority */
    149 #define RTW_TXQLENBCN	1			/* beacon */
    150 
    151 #define RTW_NTXDESCLO	(RTW_TXQLENLO * RTW_MAXPKTSEGS)
    152 #define RTW_NTXDESCMD	(RTW_TXQLENMD * RTW_MAXPKTSEGS)
    153 #define RTW_NTXDESCHI	(RTW_TXQLENHI * RTW_MAXPKTSEGS)
    154 #define RTW_NTXDESCBCN	(RTW_TXQLENBCN * RTW_MAXPKTSEGS)
    155 
    156 #define RTW_NTXDESCTOTAL	(RTW_NTXDESCLO + RTW_NTXDESCMD + \
    157 				 RTW_NTXDESCHI + RTW_NTXDESCBCN)
    158 
    159 #define RTW_RXQLEN	RTW_RXQLEN_ROUNDUP(32)
    160 #define RTW_NRXDESC	RTW_RXQLEN
    161 
    162 struct rtw_txdesc_blk {
    163 	u_int			htc_ndesc;
    164 	u_int			htc_next;
    165 	u_int			htc_nfree;
    166 	bus_addr_t		htc_physbase;
    167 	bus_addr_t		htc_ofs;
    168 	struct rtw_txdesc	*htc_desc;
    169 };
    170 
    171 #define RTW_NEXT_IDX(__htc, __idx)	(((__idx) + 1) % (__htc)->htc_ndesc)
    172 
    173 #define RTW_NEXT_DESC(__htc, __idx) \
    174     ((__htc)->htc_physbase + \
    175      sizeof(struct rtw_txdesc) * RTW_NEXT_IDX((__htc), (__idx)))
    176 
    177 SIMPLEQ_HEAD(rtw_txq, rtw_txctl);
    178 
    179 struct rtw_txctl_blk {
    180 	/* dirty/free s/w descriptors */
    181 	struct rtw_txq		stc_dirtyq;
    182 	struct rtw_txq		stc_freeq;
    183 	u_int			stc_ndesc;
    184 	int			stc_tx_timer;
    185 	struct rtw_txctl	*stc_desc;
    186 };
    187 
    188 struct rtw_descs {
    189 	struct rtw_txdesc	hd_txlo[RTW_NTXDESCLO];
    190 	struct rtw_txdesc	hd_txmd[RTW_NTXDESCMD];
    191 	struct rtw_txdesc	hd_txhi[RTW_NTXDESCMD];
    192 	struct rtw_rxdesc	hd_rx[RTW_NRXDESC];
    193 	struct rtw_txdesc	hd_bcn[RTW_NTXDESCBCN];
    194 };
    195 #define RTW_DESC_OFFSET(ring, i)	offsetof(struct rtw_descs, ring[i])
    196 #define RTW_RING_OFFSET(ring)		RTW_DESC_OFFSET(ring, 0)
    197 #define RTW_RING_BASE(sc, ring)		((sc)->sc_desc_physaddr + \
    198 					 RTW_RING_OFFSET(ring))
    199 
    200 /* Radio capture format for RTL8180. */
    201 
    202 #define RTW_RX_RADIOTAP_PRESENT	\
    203 	((1 << IEEE80211_RADIOTAP_FLAGS) | (1 << IEEE80211_RADIOTAP_RATE) | \
    204 	 (1 << IEEE80211_RADIOTAP_CHANNEL) | \
    205 	 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL))
    206 
    207 struct rtw_rx_radiotap_header {
    208 	struct ieee80211_radiotap_header	rr_ihdr;
    209 	u_int8_t				rr_flags;
    210 	u_int8_t				rr_rate;
    211 	u_int16_t				rr_chan_freq;
    212 	u_int16_t				rr_chan_flags;
    213 	u_int8_t				rr_antsignal;
    214 } __attribute__((__packed__));
    215 
    216 #define RTW_TX_RADIOTAP_PRESENT	((1 << IEEE80211_RADIOTAP_FLAGS) | \
    217 				 (1 << IEEE80211_RADIOTAP_RATE) | \
    218 				 (1 << IEEE80211_RADIOTAP_CHANNEL))
    219 
    220 struct rtw_tx_radiotap_header {
    221 	struct ieee80211_radiotap_header	rt_ihdr;
    222 	u_int8_t				rt_flags;
    223 	u_int8_t				rt_rate;
    224 	u_int16_t				rt_chan_freq;
    225 	u_int16_t				rt_chan_flags;
    226 } __attribute__((__packed__));
    227 
    228 enum rtw_attach_state {FINISHED, FINISH_DESCMAP_LOAD, FINISH_DESCMAP_CREATE,
    229 	FINISH_DESC_MAP, FINISH_DESC_ALLOC, FINISH_RXMAPS_CREATE,
    230 	FINISH_TXMAPS_CREATE, FINISH_RESET, FINISH_READ_SROM, FINISH_PARSE_SROM,
    231 	FINISH_RF_ATTACH, FINISH_ID_STA, FINISH_TXDESCBLK_SETUP,
    232 	FINISH_TXCTLBLK_SETUP, DETACHED};
    233 
    234 struct rtw_hooks {
    235 	void			*rh_shutdown;	/* shutdown hook */
    236 	void			*rh_power;	/* power management hook */
    237 };
    238 
    239 struct rtw_mtbl {
    240 	int			(*mt_newstate)(struct ieee80211com *,
    241 					enum ieee80211_state, int);
    242 	void			(*mt_recv_mgmt)(struct ieee80211com *,
    243 				    struct mbuf *, struct ieee80211_node *,
    244 				    int, int, u_int32_t);
    245 	struct ieee80211_node	*(*mt_node_alloc)(struct ieee80211com *);
    246 	void			(*mt_node_free)(struct ieee80211com *,
    247 					struct ieee80211_node *);
    248 };
    249 
    250 enum rtw_pwrstate { RTW_OFF = 0, RTW_SLEEP, RTW_ON };
    251 
    252 typedef void (*rtw_continuous_tx_cb_t)(void *arg, int);
    253 
    254 struct rtw_phy {
    255 	struct rtw_rf	*p_rf;
    256 	struct rtw_regs	*p_regs;
    257 };
    258 
    259 struct rtw_bbpset {
    260 	u_int	bb_antatten;
    261 	u_int	bb_chestlim;
    262 	u_int	bb_chsqlim;
    263 	u_int	bb_ifagcdet;
    264 	u_int	bb_ifagcini;
    265 	u_int	bb_ifagclimit;
    266 	u_int	bb_lnadet;
    267 	u_int	bb_sys1;
    268 	u_int	bb_sys2;
    269 	u_int	bb_sys3;
    270 	u_int	bb_trl;
    271 	u_int	bb_txagc;
    272 };
    273 
    274 struct rtw_rf {
    275 	void	(*rf_destroy)(struct rtw_rf *);
    276 	/* args: frequency, txpower, power state */
    277 	int	(*rf_init)(struct rtw_rf *, u_int, u_int8_t,
    278 	                  enum rtw_pwrstate);
    279 	/* arg: power state */
    280 	int	(*rf_pwrstate)(struct rtw_rf *, enum rtw_pwrstate);
    281 	/* arg: frequency */
    282 	int	(*rf_tune)(struct rtw_rf *, u_int);
    283 	/* arg: txpower */
    284 	int	(*rf_txpower)(struct rtw_rf *, u_int8_t);
    285 	rtw_continuous_tx_cb_t	rf_continuous_tx_cb;
    286 	void			*rf_continuous_tx_arg;
    287 	struct rtw_bbpset	rf_bbpset;
    288 };
    289 
    290 static __inline void
    291 rtw_rf_destroy(struct rtw_rf *rf)
    292 {
    293 	(*rf->rf_destroy)(rf);
    294 }
    295 
    296 static __inline int
    297 rtw_rf_init(struct rtw_rf *rf, u_int freq, u_int8_t opaque_txpower,
    298     enum rtw_pwrstate power)
    299 {
    300 	return (*rf->rf_init)(rf, freq, opaque_txpower, power);
    301 }
    302 
    303 static __inline int
    304 rtw_rf_pwrstate(struct rtw_rf *rf, enum rtw_pwrstate power)
    305 {
    306 	return (*rf->rf_pwrstate)(rf, power);
    307 }
    308 
    309 static __inline int
    310 rtw_rf_tune(struct rtw_rf *rf, u_int freq)
    311 {
    312 	return (*rf->rf_tune)(rf, freq);
    313 }
    314 
    315 static __inline int
    316 rtw_rf_txpower(struct rtw_rf *rf, u_int8_t opaque_txpower)
    317 {
    318 	return (*rf->rf_txpower)(rf, opaque_txpower);
    319 }
    320 
    321 typedef int (*rtw_rf_write_t)(struct rtw_regs *, enum rtw_rfchipid, u_int,
    322     u_int32_t);
    323 
    324 struct rtw_rfbus {
    325 	struct rtw_regs		*b_regs;
    326 	rtw_rf_write_t		b_write;
    327 };
    328 
    329 static __inline int
    330 rtw_rfbus_write(struct rtw_rfbus *bus, enum rtw_rfchipid rfchipid, u_int addr,
    331     u_int32_t val)
    332 {
    333 	return (*bus->b_write)(bus->b_regs, rfchipid, addr, val);
    334 }
    335 
    336 struct rtw_max2820 {
    337 	struct rtw_rf		mx_rf;
    338 	struct rtw_rfbus	mx_bus;
    339 	int			mx_is_a;	/* 1: MAX2820A/MAX2821A */
    340 };
    341 
    342 struct rtw_sa2400 {
    343 	struct rtw_rf		sa_rf;
    344 	struct rtw_rfbus	sa_bus;
    345 	int			sa_digphy;	/* 1: digital PHY */
    346 };
    347 
    348 typedef void (*rtw_pwrstate_t)(struct rtw_regs *, enum rtw_pwrstate, int, int);
    349 
    350 enum rtw_access {RTW_ACCESS_NONE = 0,
    351 		 RTW_ACCESS_CONFIG = 1,
    352 		 RTW_ACCESS_ANAPARM = 2};
    353 
    354 struct rtw_softc {
    355 	struct device		sc_dev;
    356 	struct ieee80211com	sc_ic;
    357 	struct rtw_regs		sc_regs;
    358 	bus_dma_tag_t		sc_dmat;
    359 	u_int32_t		sc_flags;
    360 
    361 #if 0
    362 	enum rtw_rftype		sc_rftype;
    363 #endif
    364 	enum rtw_attach_state	sc_attach_state;
    365 	enum rtw_rfchipid	sc_rfchipid;
    366 	enum rtw_locale		sc_locale;
    367 	u_int8_t		sc_phydelay;
    368 
    369 	/* s/w Tx/Rx descriptors */
    370 	struct rtw_txctl_blk	sc_txctl_blk[RTW_NTXPRI];
    371 	struct rtw_rxctl	sc_rxctl[RTW_RXQLEN];
    372 	u_int			sc_txq;
    373 	u_int			sc_txnext;
    374 
    375 	struct rtw_txdesc_blk	sc_txdesc_blk[RTW_NTXPRI];
    376 	struct rtw_rxdesc	*sc_rxdesc;
    377 	u_int			sc_rxnext;
    378 
    379 	struct rtw_descs	*sc_descs;
    380 
    381 	bus_dma_segment_t	sc_desc_segs;
    382 	int			sc_desc_nsegs;
    383 	bus_dmamap_t		sc_desc_dmamap;
    384 #define	sc_desc_physaddr sc_desc_dmamap->dm_segs[0].ds_addr
    385 
    386 	struct rtw_srom		sc_srom;
    387 
    388 	enum rtw_pwrstate	sc_pwrstate;
    389 
    390 	rtw_pwrstate_t		sc_pwrstate_cb;
    391 
    392 	struct rtw_rf		*sc_rf;
    393 
    394 	u_int16_t		sc_inten;
    395 
    396 	/* interrupt acknowledge hook */
    397 	void (*sc_intr_ack) __P((struct rtw_regs *));
    398 
    399 	int			(*sc_enable)(struct rtw_softc *);
    400 	void			(*sc_disable)(struct rtw_softc *);
    401 	void			(*sc_power)(struct rtw_softc *, int);
    402 	struct rtw_mtbl		sc_mtbl;
    403 	struct rtw_hooks	sc_hooks;
    404 
    405 	caddr_t			sc_radiobpf;
    406 
    407 	struct callout		sc_scan_ch;
    408 	u_int			sc_cur_chan;
    409 
    410 	u_int32_t		sc_tsfth;	/* most significant TSFT bits */
    411 	u_int32_t		sc_rcr;		/* RTW_RCR */
    412 	u_int8_t		sc_csthr;	/* carrier-sense threshold */
    413 
    414 	int			sc_do_tick;	/* indicate 1s ticks */
    415 	struct timeval		sc_tick0;	/* first tick */
    416 
    417 	uint8_t			sc_rev;		/* PCI/Cardbus revision */
    418 
    419 	uint32_t		sc_anaparm;	/* register RTW_ANAPARM */
    420 
    421 	union {
    422 		struct rtw_rx_radiotap_header	tap;
    423 		u_int8_t			pad[64];
    424 	} sc_rxtapu;
    425 	union {
    426 		struct rtw_tx_radiotap_header	tap;
    427 		u_int8_t			pad[64];
    428 	} sc_txtapu;
    429 	enum rtw_access		sc_access;
    430 };
    431 
    432 #define	sc_if		sc_ic.ic_if
    433 #define sc_rxtap	sc_rxtapu.tap
    434 #define sc_txtap	sc_txtapu.tap
    435 
    436 extern int rtw_host_rfio;
    437 extern int rtw_flush_rfio;
    438 extern int rtw_rfio_delay;
    439 
    440 void rtw_txdac_enable(struct rtw_softc *, int);
    441 void rtw_anaparm_enable(struct rtw_regs *, int);
    442 void rtw_config0123_enable(struct rtw_regs *, int);
    443 void rtw_continuous_tx_enable(struct rtw_softc *, int);
    444 void rtw_set_access(struct rtw_softc *, enum rtw_access);
    445 
    446 void rtw_attach(struct rtw_softc *);
    447 int rtw_detach(struct rtw_softc *);
    448 int rtw_intr(void *);
    449 
    450 void rtw_disable(struct rtw_softc *);
    451 int rtw_enable(struct rtw_softc *);
    452 
    453 int rtw_activate(struct device *, enum devact);
    454 void rtw_power(int, void *);
    455 void rtw_shutdown(void *);
    456 
    457 const char *rtw_pwrstate_string(enum rtw_pwrstate);
    458 
    459 #endif /* _DEV_IC_RTWVAR_H_ */
    460