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