xref: /openbsd/sys/dev/ic/rtwvar.h (revision 5af055cd)
1 /*	$OpenBSD: rtwvar.h,v 1.31 2015/11/04 12:11:59 dlg Exp $	*/
2 /*	$NetBSD: rtwvar.h,v 1.10 2004/12/26 22:37:57 mycroft Exp $	*/
3 
4 /*-
5  * Copyright (c) 2004, 2005 David Young.  All rights reserved.
6  *
7  * Driver for the Realtek RTL8180 802.11 MAC/BBP by David Young.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. The name of David Young may not be used to endorse or promote
18  *    products derived from this software without specific prior
19  *    written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY David Young ``AS IS'' AND ANY
22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
24  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL David
25  * Young BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
27  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
29  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
32  * OF SUCH DAMAGE.
33  */
34 
35 #ifndef _DEV_IC_RTWVAR_H_
36 #define	_DEV_IC_RTWVAR_H_
37 
38 #include <sys/device.h>
39 #include <sys/queue.h>
40 #include <sys/timeout.h>
41 
42 #ifdef RTW_DEBUG
43 #define	RTW_DEBUG_TUNE		0x0000001
44 #define	RTW_DEBUG_PKTFILT	0x0000002
45 #define	RTW_DEBUG_XMIT		0x0000004
46 #define	RTW_DEBUG_XMIT_DESC	0x0000008
47 #define	RTW_DEBUG_NODE		0x0000010
48 #define	RTW_DEBUG_PWR		0x0000020
49 #define	RTW_DEBUG_ATTACH	0x0000040
50 #define	RTW_DEBUG_REGDUMP	0x0000080
51 #define	RTW_DEBUG_ACCESS	0x0000100
52 #define	RTW_DEBUG_RESET		0x0000200
53 #define	RTW_DEBUG_INIT		0x0000400
54 #define	RTW_DEBUG_IOSTATE	0x0000800
55 #define	RTW_DEBUG_RECV		0x0001000
56 #define	RTW_DEBUG_RECV_DESC	0x0002000
57 #define	RTW_DEBUG_IO_KICK	0x0004000
58 #define	RTW_DEBUG_INTR		0x0008000
59 #define	RTW_DEBUG_PHY		0x0010000
60 #define	RTW_DEBUG_PHYIO		0x0020000
61 #define	RTW_DEBUG_PHYBITIO	0x0040000
62 #define	RTW_DEBUG_TIMEOUT	0x0080000
63 #define	RTW_DEBUG_BUGS		0x0100000
64 #define	RTW_DEBUG_BEACON	0x0200000
65 #define	RTW_DEBUG_LED		0x0400000
66 #define	RTW_DEBUG_KEY		0x0800000
67 #define	RTW_DEBUG_XMIT_RSRC	0x1000000
68 #define	RTW_DEBUG_OACTIVE	0x2000000
69 #define	RTW_DEBUG_MAX		0x3ffffff
70 
71 extern int rtw_debug;
72 #define RTW_DPRINTF(__flags, __x)	\
73 	if ((rtw_debug & (__flags)) != 0) printf __x
74 #define	DPRINTF(__sc, __flags, __x)				\
75 	if (((__sc)->sc_ic.ic_if.if_flags & IFF_DEBUG) != 0)	\
76 		RTW_DPRINTF(__flags, __x)
77 #else /* RTW_DEBUG */
78 #define RTW_DPRINTF(__flags, __x)
79 #define	DPRINTF(__sc, __flags, __x)
80 #endif /* RTW_DEBUG */
81 
82 #define	KASSERT2(__cond, __msg)		\
83 	do {				\
84 		if (!(__cond))		\
85 			panic __msg ;	\
86 	} while (0)
87 
88 enum rtw_locale {
89 	RTW_LOCALE_USA = 0,
90 	RTW_LOCALE_EUROPE,
91 	RTW_LOCALE_JAPAN,
92 	RTW_LOCALE_UNKNOWN
93 };
94 
95 #define	RTW_RFCHIPID_RESERVED	0x00
96 #define	RTW_RFCHIPID_INTERSIL	0x01
97 #define	RTW_RFCHIPID_RFMD2948	0x02
98 #define	RTW_RFCHIPID_PHILIPS	0x03
99 #define	RTW_RFCHIPID_MAXIM2820	0x04
100 #define	RTW_RFCHIPID_GCT	0x05
101 #define	RTW_RFCHIPID_RFMD2958	0x06
102 #define	RTW_RFCHIPID_MAXIM2822	0x07
103 #define	RTW_RFCHIPID_MAXIM2825	0x08
104 #define	RTW_RFCHIPID_RTL8225	0x09
105 #define	RTW_RFCHIPID_RTL8255	0x0a
106 
107 /* sc_flags */
108 #define RTW_F_ENABLED		0x00000001	/* chip is enabled */
109 #define RTW_F_DIGPHY		0x00000002	/* digital PHY */
110 #define RTW_F_DFLANTB		0x00000004	/* B antenna is default */
111 #define RTW_F_RTL8185		0x00000008	/* RTL8185 or newer */
112 #define RTW_F_ANTDIV		0x00000010	/* h/w antenna diversity */
113 #define RTW_F_9356SROM		0x00000020	/* 93c56 SROM */
114 #define RTW_F_SLEEP		0x00000040	/* chip is asleep */
115 #define RTW_F_INVALID		0x00000080	/* chip is absent */
116 	/* all PHY flags */
117 #define RTW_F_ALLPHY		(RTW_F_DIGPHY|RTW_F_DFLANTB|RTW_F_ANTDIV)
118 
119 enum rtw_access {
120 	RTW_ACCESS_NONE = 0,
121 	RTW_ACCESS_CONFIG = 1,
122 	RTW_ACCESS_ANAPARM = 2
123 };
124 
125 struct rtw_regs {
126 	bus_space_tag_t		r_bt;
127 	bus_space_handle_t	r_bh;
128 	enum rtw_access		r_access;
129 	void			*r_priv;
130 
131 	/* bus independent I/O callbacks */
132 	u_int8_t	(*r_read8)(void *, u_int32_t);
133 	u_int16_t	(*r_read16)(void *, u_int32_t);
134 	u_int32_t	(*r_read32)(void *, u_int32_t);
135 	void		(*r_write8)(void *, u_int32_t, u_int8_t);
136 	void		(*r_write16)(void *, u_int32_t, u_int16_t);
137 	void		(*r_write32)(void *, u_int32_t, u_int32_t);
138 	void		(*r_barrier)(void *, u_int32_t, u_int32_t, int);
139 };
140 
141 #define RTW_SR_GET(sr, ofs) \
142     (((sr)->sr_content[(ofs)/2] >> (((ofs) % 2 == 0) ? 0 : 8)) & 0xff)
143 
144 #define RTW_SR_GET16(sr, ofs) \
145     (RTW_SR_GET((sr), (ofs)) | (RTW_SR_GET((sr), (ofs) + 1) << 8))
146 
147 struct rtw_srom {
148 	u_int16_t		*sr_content;
149 	u_int16_t		sr_size;
150 };
151 
152 struct rtw_rxsoft {
153 	struct mbuf			*rs_mbuf;
154 	bus_dmamap_t			rs_dmamap;
155 };
156 
157 struct rtw_duration {
158 	uint16_t	d_rts_dur;
159 	uint16_t	d_data_dur;
160 	uint16_t	d_plcp_len;
161 	uint8_t		d_residue;	/* unused octets in time slot */
162 };
163 
164 struct rtw_txsoft {
165 	SIMPLEQ_ENTRY(rtw_txsoft)	ts_q;
166 	struct mbuf			*ts_mbuf;
167 	bus_dmamap_t			ts_dmamap;
168 	struct ieee80211_node		*ts_ni;	/* destination node */
169 	u_int				ts_first;	/* 1st hw descriptor */
170 	u_int				ts_last;	/* last hw descriptor */
171 	struct rtw_duration		ts_d0;
172 	struct rtw_duration		ts_dn;
173 };
174 
175 #define RTW_NTXPRI	4	/* number of Tx priorities */
176 #define RTW_TXPRILO	0
177 #define RTW_TXPRIMD	1
178 #define RTW_TXPRIHI	2
179 #define RTW_TXPRIBCN	3	/* beacon priority */
180 
181 #define RTW_MAXPKTSEGS		64	/* max 64 segments per Tx packet */
182 
183 /* Note well: the descriptor rings must begin on RTW_DESC_ALIGNMENT
184  * boundaries.  I allocate them consecutively from one buffer, so
185  * just round up.
186  */
187 #define RTW_TXQLENLO	64	/* low-priority queue length */
188 #define RTW_TXQLENMD	64	/* medium-priority */
189 #define RTW_TXQLENHI	64	/* high-priority */
190 #define RTW_TXQLENBCN	8	/* beacon */
191 
192 #define RTW_NTXDESCLO	RTW_TXQLENLO
193 #define RTW_NTXDESCMD	RTW_TXQLENMD
194 #define RTW_NTXDESCHI	RTW_TXQLENHI
195 #define RTW_NTXDESCBCN	RTW_TXQLENBCN
196 
197 #define RTW_NTXDESCTOTAL	(RTW_NTXDESCLO + RTW_NTXDESCMD + \
198 				 RTW_NTXDESCHI + RTW_NTXDESCBCN)
199 
200 #define RTW_RXQLEN	64
201 
202 struct rtw_rxdesc_blk {
203 	struct rtw_rxdesc	*rdb_desc;
204 	u_int			rdb_next;
205 	u_int			rdb_ndesc;
206 	bus_dma_tag_t		rdb_dmat;
207 	bus_dmamap_t		rdb_dmamap;
208 };
209 
210 struct rtw_txdesc_blk {
211 	u_int			tdb_ndesc;
212 	u_int			tdb_next;
213 	u_int			tdb_nfree;
214 	bus_dma_tag_t		tdb_dmat;
215 	bus_dmamap_t		tdb_dmamap;
216 	bus_addr_t		tdb_physbase;
217 	bus_addr_t		tdb_ofs;
218 	bus_size_t		tdb_basereg;
219 	uint32_t		tdb_base;
220 
221 	struct rtw_txdesc	*tdb_desc;
222 };
223 
224 #define RTW_NEXT_IDX(__htc, __idx)	(((__idx) + 1) % (__htc)->tdb_ndesc)
225 
226 #define RTW_NEXT_DESC(__htc, __idx) \
227     ((__htc)->tdb_physbase + \
228      sizeof(struct rtw_txdesc) * RTW_NEXT_IDX((__htc), (__idx)))
229 
230 SIMPLEQ_HEAD(rtw_txq, rtw_txsoft);
231 
232 struct rtw_txsoft_blk {
233 	/* dirty/free s/w descriptors */
234 	struct rtw_txq		tsb_dirtyq;
235 	struct rtw_txq		tsb_freeq;
236 	u_int			tsb_ndesc;
237 	int			tsb_tx_timer;
238 	struct rtw_txsoft	*tsb_desc;
239 	u_int8_t			tsb_poll;
240 };
241 
242 struct rtw_descs {
243 	struct rtw_txdesc	hd_txlo[RTW_NTXDESCLO];
244 	struct rtw_txdesc	hd_txmd[RTW_NTXDESCMD];
245 	struct rtw_txdesc	hd_txhi[RTW_NTXDESCMD];
246 	struct rtw_rxdesc	hd_rx[RTW_RXQLEN];
247 	struct rtw_txdesc	hd_bcn[RTW_NTXDESCBCN];
248 };
249 #define RTW_DESC_OFFSET(ring, i)	offsetof(struct rtw_descs, ring[i])
250 #define RTW_RING_OFFSET(ring)		RTW_DESC_OFFSET(ring, 0)
251 #define RTW_RING_BASE(sc, ring)		((sc)->sc_desc_physaddr + \
252 					 RTW_RING_OFFSET(ring))
253 
254 /* Radio capture format for RTL8180. */
255 
256 #define RTW_RX_RADIOTAP_PRESENT					\
257 	((1 << IEEE80211_RADIOTAP_TSFT)			|	\
258 	 (1 << IEEE80211_RADIOTAP_FLAGS)		|	\
259 	 (1 << IEEE80211_RADIOTAP_RATE)			|	\
260 	 (1 << IEEE80211_RADIOTAP_CHANNEL)		|	\
261 	 (1 << IEEE80211_RADIOTAP_LOCK_QUALITY)		|	\
262 	 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL)		|	\
263 	 0)
264 
265 struct rtw_rx_radiotap_header {
266 	struct ieee80211_radiotap_header	rr_ihdr;
267 	u_int64_t				rr_tsft;
268 	u_int8_t				rr_flags;
269 	u_int8_t				rr_rate;
270 	u_int16_t				rr_chan_freq;
271 	u_int16_t				rr_chan_flags;
272 	u_int16_t				rr_barker_lock;
273 	u_int8_t				rr_antsignal;
274 } __packed;
275 
276 #define RTW_TX_RADIOTAP_PRESENT				\
277 	((1 << IEEE80211_RADIOTAP_FLAGS)	|	\
278 	 (1 << IEEE80211_RADIOTAP_RATE)		|	\
279 	 (1 << IEEE80211_RADIOTAP_CHANNEL)	|	\
280 	 0)
281 
282 struct rtw_tx_radiotap_header {
283 	struct ieee80211_radiotap_header	rt_ihdr;
284 	u_int8_t				rt_flags;
285 	u_int8_t				rt_rate;
286 	u_int16_t				rt_chan_freq;
287 	u_int16_t				rt_chan_flags;
288 } __packed;
289 
290 struct rtw_mtbl {
291 	int			(*mt_newstate)(struct ieee80211com *,
292 					enum ieee80211_state, int);
293 	void			(*mt_recv_mgmt)(struct ieee80211com *,
294 				    struct mbuf *, struct ieee80211_node *,
295 				    struct ieee80211_rxinfo *, int);
296 	struct ieee80211_node	*(*mt_node_alloc)(struct ieee80211com *);
297 	void			(*mt_node_free)(struct ieee80211com *,
298 					struct ieee80211_node *);
299 };
300 
301 enum rtw_pwrstate { RTW_OFF = 0, RTW_SLEEP, RTW_ON };
302 
303 struct rtw_phy {
304 	struct rtw_rf	*p_rf;
305 	struct rtw_regs	*p_regs;
306 };
307 
308 struct rtw_bbpset {
309 	u_int	bb_antatten;
310 	u_int	bb_chestlim;
311 	u_int	bb_chsqlim;
312 	u_int	bb_ifagcdet;
313 	u_int	bb_ifagcini;
314 	u_int	bb_ifagclimit;
315 	u_int	bb_lnadet;
316 	u_int	bb_sys1;
317 	u_int	bb_sys2;
318 	u_int	bb_sys3;
319 	u_int	bb_trl;
320 	u_int	bb_txagc;
321 };
322 
323 typedef int (*rtw_rf_write_t)(struct rtw_regs *, int, u_int,
324     u_int32_t);
325 
326 typedef void (*rtw_pwrstate_t)(struct rtw_regs *, enum rtw_pwrstate, int, int);
327 
328 union rtw_keys {
329 	u_int8_t	rk_keys[4][16];
330 	u_int32_t	rk_words[16];
331 };
332 
333 #define	RTW_LED_SLOW_MSEC	500
334 #define	RTW_LED_FAST_MSEC	100
335 
336 struct rtw_led_state {
337 #define	RTW_LED0	0x1
338 #define	RTW_LED1	0x2
339 	u_int8_t	ls_slowblink:2;
340 	u_int8_t	ls_actblink:2;
341 	u_int8_t	ls_default:2;
342 	u_int8_t	ls_state;
343 	u_int8_t	ls_event;
344 #define	RTW_LED_S_RX	0x1
345 #define	RTW_LED_S_TX	0x2
346 #define	RTW_LED_S_SLOW	0x4
347 	struct timeout	ls_slow_ch;
348 	struct timeout	ls_fast_ch;
349 };
350 
351 struct rtw_softc {
352 	struct device		sc_dev;
353 	struct ieee80211com	sc_ic;
354 	struct rtw_regs		sc_regs;
355 	bus_dma_tag_t		sc_dmat;
356 	u_int32_t		sc_flags;
357 
358 	int			sc_rfchipid;
359 	enum rtw_locale		sc_locale;
360 	u_int8_t		sc_phydelay;
361 	struct rtw_bbpset       sc_bbpset;
362 
363 	/* s/w Tx/Rx descriptors */
364 	struct rtw_txsoft_blk	sc_txsoft_blk[RTW_NTXPRI];
365 	struct rtw_txdesc_blk	sc_txdesc_blk[RTW_NTXPRI];
366 
367 	struct rtw_rxsoft	sc_rxsoft[RTW_RXQLEN];
368 	struct rtw_rxdesc_blk	sc_rxdesc_blk;
369 
370 	struct rtw_descs	*sc_descs;
371 
372 	bus_dma_segment_t	sc_desc_segs;
373 	int			sc_desc_nsegs;
374 	bus_dmamap_t		sc_desc_dmamap;
375 #define	sc_desc_physaddr sc_desc_dmamap->dm_segs[0].ds_addr
376 
377 	struct rtw_srom		sc_srom;
378 
379 	enum rtw_pwrstate	sc_pwrstate;
380 
381 	rtw_pwrstate_t		sc_pwrstate_cb;
382 
383 	u_int16_t		sc_inten;
384 	int			(*sc_rf_init)(struct rtw_softc *, u_int,
385 				    u_int8_t, enum rtw_pwrstate);
386 	int			(*sc_rf_pwrstate)(struct rtw_softc *,
387 				    enum rtw_pwrstate);
388 	int			(*sc_rf_tune)(struct rtw_softc *, u_int);
389 	int			(*sc_rf_txpower)(struct rtw_softc *, u_int8_t);
390 
391 	/* interrupt acknowledge hook */
392 	void			(*sc_intr_ack)(struct rtw_regs *);
393 
394 	int			(*sc_enable)(struct rtw_softc *);
395 	void			(*sc_disable)(struct rtw_softc *);
396 	void			(*sc_power)(struct rtw_softc *, int);
397 	struct rtw_mtbl		sc_mtbl;
398 
399 	caddr_t			sc_radiobpf;
400 
401 	struct timeval		sc_last_beacon;
402 	struct timeout		sc_scan_to;
403 	u_int			sc_cur_chan;
404 
405 	u_int32_t		sc_tsfth;	/* most significant TSFT bits */
406 	u_int32_t		sc_rcr;		/* RTW_RCR */
407 	u_int8_t		sc_csthr;	/* carrier-sense threshold */
408 
409 	int			sc_do_tick;	/* indicate 1s ticks */
410 	struct timeval		sc_tick0;	/* first tick */
411 
412 	u_int8_t		sc_rev;		/* PCI/Cardbus revision */
413 
414 	u_int32_t		sc_anaparm[2];	/* RTW_ANAPARM_? registers */
415 
416 	union {
417 		struct rtw_rx_radiotap_header	tap;
418 		u_int8_t			pad[64];
419 	} sc_rxtapu;
420 	union {
421 		struct rtw_tx_radiotap_header	tap;
422 		u_int8_t			pad[64];
423 	} sc_txtapu;
424 	union rtw_keys		sc_keys;
425 	int			sc_txkey;
426 	struct mbuf_queue	sc_beaconq;
427 	struct rtw_led_state	sc_led_state;
428 	u_int			sc_hwverid;
429 };
430 
431 #define	sc_if		sc_ic.ic_if
432 #define sc_rxtap	sc_rxtapu.tap
433 #define sc_txtap	sc_txtapu.tap
434 
435 extern int rtw_host_rfio;
436 
437 void rtw_txdac_enable(struct rtw_softc *, int);
438 void rtw_anaparm_enable(struct rtw_regs *, int);
439 void rtw_config0123_enable(struct rtw_regs *, int);
440 void rtw_continuous_tx_enable(struct rtw_softc *, int);
441 void rtw_set_access(struct rtw_regs *, enum rtw_access);
442 
443 void rtw_attach(struct rtw_softc *);
444 int rtw_detach(struct rtw_softc *);
445 int rtw_intr(void *);
446 
447 void rtw_disable(struct rtw_softc *);
448 int rtw_enable(struct rtw_softc *);
449 
450 int rtw_activate(struct device *, int);
451 void rtw_shutdown(void *);
452 
453 const char *rtw_pwrstate_string(enum rtw_pwrstate);
454 
455 #endif /* _DEV_IC_RTWVAR_H_ */
456