rtwvar.h revision 1.1 1 /* $NetBSD: rtwvar.h,v 1.1 2004/09/26 02:29:15 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 enabled */
88 /* all PHY flags */
89 #define RTW_F_ALLPHY (RTW_F_DIGPHY|RTW_F_DFLANTB|RTW_F_ANTDIV)
90
91 struct rtw_regs {
92 bus_space_tag_t r_bt;
93 bus_space_handle_t r_bh;
94 };
95
96 #define RTW_SR_GET(sr, ofs) \
97 (((sr)->sr_content[(ofs)/2] >> (((ofs) % 2 == 0) ? 0 : 8)) & 0xff)
98
99 #define RTW_SR_GET16(sr, ofs) \
100 (RTW_SR_GET((sr), (ofs)) | (RTW_SR_GET((sr), (ofs) + 1) << 8))
101
102 struct rtw_srom {
103 u_int16_t *sr_content;
104 u_int16_t sr_size;
105 };
106
107 struct rtw_rxctl {
108 struct mbuf *srx_mbuf;
109 bus_dmamap_t srx_dmamap;
110 };
111
112 struct rtw_txctl {
113 SIMPLEQ_ENTRY(rtw_txctl) stx_q;
114 struct mbuf *stx_mbuf;
115 bus_dmamap_t stx_dmamap;
116 struct ieee80211_node *stx_ni; /* destination node */
117 u_int stx_first; /* 1st hw descriptor */
118 u_int stx_last; /* last hw descriptor */
119 };
120
121 #define RTW_NTXPRI 4 /* number of Tx priorities */
122 #define RTW_TXPRILO 0
123 #define RTW_TXPRIMD 1
124 #define RTW_TXPRIHI 2
125 #define RTW_TXPRIBCN 3 /* beacon priority */
126
127 #define RTW_MAXPKTSEGS 32 /* max 32 segments per Tx packet */
128
129 #define CASSERT(cond, complaint) complaint[(cond) ? 0 : -1] = complaint[(cond) ? 0 : -1]
130
131 #define RTW_NTXDESC_ROUNDUP(n) \
132 roundup(n, RTW_DESC_ALIGNMENT / sizeof(struct rtw_txdesc))
133
134 #define RTW_TXQLEN_ROUNDUP(n) \
135 (RTW_NTXDESC_ROUNDUP(n * RTW_MAXPKTSEGS) / RTW_MAXPKTSEGS)
136
137 #define RTW_RXQLEN_ROUNDUP(n) \
138 roundup(n, RTW_DESC_ALIGNMENT / sizeof(struct rtw_rxctl))
139
140 /* The descriptor rings must begin on RTW_DESC_ALIGNMENT boundaries.
141 * I allocate them consecutively from one buffer, so just round up.
142 */
143 #define RTW_TXQLENLO RTW_TXQLEN_ROUNDUP(64) /* high-priority queue length */
144 #define RTW_TXQLENMD RTW_TXQLEN_ROUNDUP(32) /* medium-priority */
145 #define RTW_TXQLENHI RTW_TXQLEN_ROUNDUP(16) /* high-priority */
146 #define RTW_TXQLENBCN 1 /* beacon */
147
148 #define RTW_NTXDESCLO (RTW_TXQLENLO * RTW_MAXPKTSEGS)
149 #define RTW_NTXDESCMD (RTW_TXQLENMD * RTW_MAXPKTSEGS)
150 #define RTW_NTXDESCHI (RTW_TXQLENHI * RTW_MAXPKTSEGS)
151 #define RTW_NTXDESCBCN (RTW_TXQLENBCN * RTW_MAXPKTSEGS)
152
153 #define RTW_NTXDESCTOTAL (RTW_NTXDESCLO + RTW_NTXDESCMD + \
154 RTW_NTXDESCHI + RTW_NTXDESCBCN)
155
156 #define RTW_RXQLEN RTW_RXQLEN_ROUNDUP(32)
157 #define RTW_NRXDESC RTW_RXQLEN
158
159 struct rtw_txdesc_blk {
160 u_int htc_ndesc;
161 u_int htc_next;
162 u_int htc_nfree;
163 bus_addr_t htc_physbase;
164 bus_addr_t htc_ofs;
165 struct rtw_txdesc *htc_desc;
166 };
167
168 #define RTW_NEXT_DESC(htc, idx) \
169 (htc->htc_physbase + \
170 sizeof(struct rtw_txdesc) * ((idx + 1) % htc->htc_ndesc))
171
172 SIMPLEQ_HEAD(rtw_txq, rtw_txctl);
173
174 struct rtw_txctl_blk {
175 /* dirty/free s/w descriptors */
176 struct rtw_txq stc_dirtyq;
177 struct rtw_txq stc_freeq;
178 u_int stc_ndesc;
179 struct rtw_txctl *stc_desc;
180 };
181
182 struct rtw_descs {
183 struct rtw_txdesc hd_txlo[RTW_NTXDESCLO];
184 struct rtw_txdesc hd_txmd[RTW_NTXDESCMD];
185 struct rtw_txdesc hd_txhi[RTW_NTXDESCMD];
186 struct rtw_rxdesc hd_rx[RTW_NRXDESC];
187 struct rtw_txdesc hd_bcn[RTW_NTXDESCBCN];
188 };
189 #define RTW_DESC_OFFSET(ring, i) offsetof(struct rtw_descs, ring[i])
190 #define RTW_RING_OFFSET(ring) RTW_DESC_OFFSET(ring, 0)
191 #define RTW_RING_BASE(sc, ring) ((sc)->sc_desc_physaddr + \
192 RTW_RING_OFFSET(ring))
193
194 /* Radio capture format for RTL8180. */
195
196 #define RTW_RX_RADIOTAP_PRESENT \
197 ((1 << IEEE80211_RADIOTAP_FLAGS) | (1 << IEEE80211_RADIOTAP_RATE) | \
198 (1 << IEEE80211_RADIOTAP_CHANNEL) | \
199 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL))
200
201 struct rtw_rx_radiotap_header {
202 struct ieee80211_radiotap_header rr_ihdr;
203 u_int8_t rr_flags;
204 u_int8_t rr_rate;
205 u_int16_t rr_chan_freq;
206 u_int16_t rr_chan_flags;
207 u_int8_t rr_antsignal;
208 } __attribute__((__packed__));
209
210 #define RTW_TX_RADIOTAP_PRESENT ((1 << IEEE80211_RADIOTAP_FLAGS) | \
211 (1 << IEEE80211_RADIOTAP_RATE) | \
212 (1 << IEEE80211_RADIOTAP_CHANNEL))
213
214 struct rtw_tx_radiotap_header {
215 struct ieee80211_radiotap_header rt_ihdr;
216 u_int8_t rt_flags;
217 u_int8_t rt_rate;
218 u_int16_t rt_chan_freq;
219 u_int16_t rt_chan_flags;
220 } __attribute__((__packed__));
221
222 enum rtw_attach_state {FINISHED, FINISH_DESCMAP_LOAD, FINISH_DESCMAP_CREATE,
223 FINISH_DESC_MAP, FINISH_DESC_ALLOC, FINISH_RXMAPS_CREATE,
224 FINISH_TXMAPS_CREATE, FINISH_RESET, FINISH_READ_SROM, FINISH_PARSE_SROM,
225 FINISH_RF_ATTACH, FINISH_ID_STA, FINISH_TXDESCBLK_SETUP,
226 FINISH_TXCTLBLK_SETUP, DETACHED};
227
228 struct rtw_hooks {
229 void *rh_shutdown; /* shutdown hook */
230 void *rh_power; /* power management hook */
231 };
232
233 struct rtw_mtbl {
234 int (*mt_newstate)(struct ieee80211com *,
235 enum ieee80211_state, int);
236 void (*mt_recv_mgmt)(struct ieee80211com *,
237 struct mbuf *, struct ieee80211_node *,
238 int, int, u_int32_t);
239 struct ieee80211_node *(*mt_node_alloc)(struct ieee80211com *);
240 void (*mt_node_free)(struct ieee80211com *,
241 struct ieee80211_node *);
242 };
243
244 enum rtw_pwrstate { RTW_OFF = 0, RTW_SLEEP, RTW_ON };
245
246 typedef void (*rtw_continuous_tx_cb_t)(void *arg, int);
247
248 struct rtw_phy {
249 struct rtw_rf *p_rf;
250 struct rtw_regs *p_regs;
251 };
252
253 struct rtw_bbpset {
254 u_int bb_antatten;
255 u_int bb_chestlim;
256 u_int bb_chsqlim;
257 u_int bb_ifagcdet;
258 u_int bb_ifagcini;
259 u_int bb_ifagclimit;
260 u_int bb_lnadet;
261 u_int bb_sys1;
262 u_int bb_sys2;
263 u_int bb_sys3;
264 u_int bb_trl;
265 u_int bb_txagc;
266 };
267
268 struct rtw_rf {
269 void (*rf_destroy)(struct rtw_rf *);
270 /* args: frequency, txpower, power state */
271 int (*rf_init)(struct rtw_rf *, u_int, u_int8_t,
272 enum rtw_pwrstate);
273 /* arg: power state */
274 int (*rf_pwrstate)(struct rtw_rf *, enum rtw_pwrstate);
275 /* arg: frequency */
276 int (*rf_tune)(struct rtw_rf *, u_int);
277 /* arg: txpower */
278 int (*rf_txpower)(struct rtw_rf *, u_int8_t);
279 rtw_continuous_tx_cb_t rf_continuous_tx_cb;
280 void *rf_continuous_tx_arg;
281 struct rtw_bbpset rf_bbpset;
282 };
283
284 static __inline void
285 rtw_rf_destroy(struct rtw_rf *rf)
286 {
287 (*rf->rf_destroy)(rf);
288 }
289
290 static __inline int
291 rtw_rf_init(struct rtw_rf *rf, u_int freq, u_int8_t opaque_txpower,
292 enum rtw_pwrstate power)
293 {
294 return (*rf->rf_init)(rf, freq, opaque_txpower, power);
295 }
296
297 static __inline int
298 rtw_rf_pwrstate(struct rtw_rf *rf, enum rtw_pwrstate power)
299 {
300 return (*rf->rf_pwrstate)(rf, power);
301 }
302
303 static __inline int
304 rtw_rf_tune(struct rtw_rf *rf, u_int freq)
305 {
306 return (*rf->rf_tune)(rf, freq);
307 }
308
309 static __inline int
310 rtw_rf_txpower(struct rtw_rf *rf, u_int8_t opaque_txpower)
311 {
312 return (*rf->rf_txpower)(rf, opaque_txpower);
313 }
314
315 typedef int (*rtw_rf_write_t)(struct rtw_regs *, enum rtw_rfchipid, u_int,
316 u_int32_t);
317
318 struct rtw_rfbus {
319 struct rtw_regs *b_regs;
320 rtw_rf_write_t b_write;
321 };
322
323 static __inline int
324 rtw_rfbus_write(struct rtw_rfbus *bus, enum rtw_rfchipid rfchipid, u_int addr,
325 u_int32_t val)
326 {
327 return (*bus->b_write)(bus->b_regs, rfchipid, addr, val);
328 }
329
330 struct rtw_max2820 {
331 struct rtw_rf mx_rf;
332 struct rtw_rfbus mx_bus;
333 int mx_is_a; /* 1: MAX2820A/MAX2821A */
334 };
335
336 struct rtw_sa2400 {
337 struct rtw_rf sa_rf;
338 struct rtw_rfbus sa_bus;
339 int sa_digphy; /* 1: digital PHY */
340 };
341
342 typedef void (*rtw_pwrstate_t)(struct rtw_regs *, enum rtw_pwrstate, int);
343
344 struct rtw_softc {
345 struct device sc_dev;
346 struct ieee80211com sc_ic;
347 struct rtw_regs sc_regs;
348 bus_dma_tag_t sc_dmat;
349 u_int32_t sc_flags;
350
351 #if 0
352 enum rtw_rftype sc_rftype;
353 #endif
354 enum rtw_attach_state sc_attach_state;
355 enum rtw_rfchipid sc_rfchipid;
356 enum rtw_locale sc_locale;
357 u_int8_t sc_phydelay;
358
359 /* s/w Tx/Rx descriptors */
360 struct rtw_txctl_blk sc_txctl_blk[RTW_NTXPRI];
361 struct rtw_rxctl sc_rxctl[RTW_RXQLEN];
362 u_int sc_txq;
363 u_int sc_txnext;
364
365 struct rtw_txdesc_blk sc_txdesc_blk[RTW_NTXPRI];
366 struct rtw_rxdesc *sc_rxdesc;
367 u_int sc_rxnext;
368
369 struct rtw_descs *sc_descs;
370
371 bus_dma_segment_t sc_desc_segs;
372 int sc_desc_nsegs;
373 bus_dmamap_t sc_desc_dmamap;
374 #define sc_desc_physaddr sc_desc_dmamap->dm_segs[0].ds_addr
375
376 struct rtw_srom sc_srom;
377
378 enum rtw_pwrstate sc_pwrstate;
379
380 rtw_pwrstate_t sc_pwrstate_cb;
381
382 struct rtw_rf *sc_rf;
383
384 u_int16_t sc_inten;
385
386 /* interrupt acknowledge hook */
387 void (*sc_intr_ack) __P((struct rtw_regs *));
388
389 int (*sc_enable)(struct rtw_softc *);
390 void (*sc_disable)(struct rtw_softc *);
391 void (*sc_power)(struct rtw_softc *, int);
392 struct rtw_mtbl sc_mtbl;
393 struct rtw_hooks sc_hooks;
394
395 caddr_t sc_radiobpf;
396
397 struct callout sc_scan_ch;
398 u_int sc_cur_chan;
399
400 u_int32_t sc_tsfth; /* most significant TSFT bits */
401 u_int32_t sc_rcr; /* RTW_RCR */
402 u_int8_t sc_csthr; /* carrier-sense threshold */
403
404 int sc_do_tick; /* indicate 1s ticks */
405 struct timeval sc_tick0; /* first tick */
406
407 uint8_t sc_rev; /* PCI/Cardbus revision */
408
409 union {
410 struct rtw_rx_radiotap_header tap;
411 u_int8_t pad[64];
412 } sc_rxtapu;
413 union {
414 struct rtw_tx_radiotap_header tap;
415 u_int8_t pad[64];
416 } sc_txtapu;
417 };
418
419 #define sc_if sc_ic.ic_if
420 #define sc_rxtap sc_rxtapu.tap
421 #define sc_txtap sc_txtapu.tap
422
423 void rtw_txdac_enable(struct rtw_regs *, int);
424 void rtw_anaparm_enable(struct rtw_regs *, int);
425 void rtw_config0123_enable(struct rtw_regs *, int);
426 void rtw_continuous_tx_enable(struct rtw_regs *, int);
427
428 void rtw_attach(struct rtw_softc *);
429 int rtw_detach(struct rtw_softc *);
430 int rtw_intr(void *);
431
432 void rtw_disable(struct rtw_softc *);
433 int rtw_enable(struct rtw_softc *);
434
435 int rtw_activate(struct device *, enum devact);
436 void rtw_power(int, void *);
437 void rtw_shutdown(void *);
438
439 const char *rtw_pwrstate_string(enum rtw_pwrstate);
440
441 #endif /* _DEV_IC_RTWVAR_H_ */
442