2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
36 u_int32_t wi_tx_unicast_frames;
37 u_int32_t wi_tx_multicast_frames;
38 u_int32_t wi_tx_fragments;
39 u_int32_t wi_tx_unicast_octets;
40 u_int32_t wi_tx_multicast_octets;
41 u_int32_t wi_tx_deferred_xmits;
42 u_int32_t wi_tx_single_retries;
43 u_int32_t wi_tx_multi_retries;
44 u_int32_t wi_tx_retry_limit;
45 u_int32_t wi_tx_discards;
46 u_int32_t wi_rx_unicast_frames;
47 u_int32_t wi_rx_multicast_frames;
48 u_int32_t wi_rx_fragments;
49 u_int32_t wi_rx_unicast_octets;
50 u_int32_t wi_rx_multicast_octets;
51 u_int32_t wi_rx_fcs_errors;
52 u_int32_t wi_rx_discards_nobuf;
53 u_int32_t wi_tx_discards_wrong_sa;
54 u_int32_t wi_rx_WEP_cant_decrypt;
55 u_int32_t wi_rx_msg_in_msg_frags;
56 u_int32_t wi_rx_msg_in_bad_msg_frags;
60 * Encryption controls. We can enable or disable encryption as
61 * well as specify up to 4 encryption keys. We can also specify
62 * which of the four keys will be used for transmit encryption.
64 #define WI_RID_ENCRYPTION 0xFC20
65 #define WI_RID_AUTHTYPE 0xFC21
66 #define WI_RID_DEFLT_CRYPT_KEYS 0xFCB0
67 #define WI_RID_TX_CRYPT_KEY 0xFCB1
68 #define WI_RID_WEP_AVAIL 0xFD4F
71 u_int8_t wi_keydat[14];
77 struct wi_key wi_keys[4];
82 struct ifmedia ifmedia;
85 struct resource * iobase;
86 struct resource * irq;
87 bus_space_handle_t wi_bhandle;
88 bus_space_tag_t wi_btag;
97 u_int16_t wi_max_data_len;
98 u_int16_t wi_rts_thresh;
99 u_int16_t wi_ap_density;
100 u_int16_t wi_tx_rate;
101 u_int16_t wi_create_ibss;
102 u_int16_t wi_channel;
103 u_int16_t wi_pm_enabled;
104 u_int16_t wi_max_sleep;
105 char wi_node_name[32];
106 char wi_net_name[32];
107 char wi_ibss_name[32];
108 u_int8_t wi_txbuf[1596];
109 struct wi_counters wi_stats;
113 struct wi_ltv_keys wi_keys;
116 struct wi_sigcache wi_sigcache[MAXWICACHE];
119 struct callout_handle wi_stat_ch;
122 #define WI_TIMEOUT 65536
131 /* Default port: 0 (only 0 exists on stations) */
132 #define WI_DEFAULT_PORT (WI_PORT0 << 8)
134 /* Default TX rate: 2Mbps, auto fallback */
135 #define WI_DEFAULT_TX_RATE 3
137 /* Default network name: empty string implies any */
138 #define WI_DEFAULT_NETNAME ""
140 #define WI_DEFAULT_AP_DENSITY 1
142 #define WI_DEFAULT_RTS_THRESH 2347
144 #define WI_DEFAULT_DATALEN 2304
146 #define WI_DEFAULT_CREATE_IBSS 0
148 #define WI_DEFAULT_PM_ENABLED 0
150 #define WI_DEFAULT_MAX_SLEEP 100
152 #define WI_DEFAULT_NODENAME "FreeBSD WaveLAN/IEEE node"
154 #define WI_DEFAULT_IBSS "FreeBSD IBSS"
156 #define WI_DEFAULT_CHAN 3
159 * register space access macros
161 #define CSR_WRITE_4(sc, reg, val) \
162 bus_space_write_4(sc->wi_btag, sc->wi_bhandle, reg, val)
163 #define CSR_WRITE_2(sc, reg, val) \
164 bus_space_write_2(sc->wi_btag, sc->wi_bhandle, reg, val)
165 #define CSR_WRITE_1(sc, reg, val) \
166 bus_space_write_1(sc->wi_btag, sc->wi_bhandle, reg, val)
168 #define CSR_READ_4(sc, reg) \
169 bus_space_read_4(sc->wi_btag, sc->wi_bhandle, reg)
170 #define CSR_READ_2(sc, reg) \
171 bus_space_read_2(sc->wi_btag, sc->wi_bhandle, reg)
172 #define CSR_READ_1(sc, reg) \
173 bus_space_read_1(sc->wi_btag, sc->wi_bhandle, reg)
176 * The WaveLAN/IEEE cards contain an 802.11 MAC controller which Lucent
177 * calls 'Hermes.' In typical fashion, getting documentation about this
178 * controller is about as easy as squeezing blood from a stone. Here
179 * is more or less what I know:
181 * - The Hermes controller is firmware driven, and the host interacts
182 * with the Hermes via a firmware interface, which can change.
184 * - The Hermes is described in a document called: "Hermes Firmware
185 * WaveLAN/IEEE Station Functions," document #010245, which of course
186 * Lucent will not release without an NDA.
188 * - Lucent has created a library called HCF (Hardware Control Functions)
189 * though which it wants developers to interact with the card. The HCF
190 * is needlessly complex, ill conceived and badly documented. Actually,
191 * the comments in the HCP code itself aren't bad, but the publically
192 * available manual that comes with it is awful, probably due largely to
193 * the fact that it has been emasculated in order to hide information
194 * that Lucent wants to keep proprietary. The purpose of the HCF seems
195 * to be to insulate the driver programmer from the Hermes itself so that
196 * Lucent has an excuse not to release programming in for it.
198 * - Lucent only makes available documentation and code for 'HCF Light'
199 * which is a stripped down version of HCF with certain features not
200 * implemented, most notably support for 802.11 frames.
202 * - The HCF code which I have seen blows goats. Whoever decided to
203 * use a 132 column format should be shot.
205 * Rather than actually use the Lucent HCF library, I have stripped all
206 * the useful information from it and used it to create a driver in the
207 * usual BSD form. Note: I don't want to hear anybody whining about the
208 * fact that the Lucent code is GPLed and mine isn't. I did not actually
209 * put any of Lucent's code in this driver: I only used it as a reference
210 * to obtain information about the underlying hardware. The Hermes
211 * programming interface is not GPLed, so bite me.
215 * Size of Hermes I/O space.
217 #define WI_IOSIZ 0x40
220 * Hermes register definitions and what little I know about them.
223 /* Hermes command/status registers. */
224 #define WI_COMMAND 0x00
225 #define WI_PARAM0 0x02
226 #define WI_PARAM1 0x04
227 #define WI_PARAM2 0x06
228 #define WI_STATUS 0x08
229 #define WI_RESP0 0x0A
230 #define WI_RESP1 0x0C
231 #define WI_RESP2 0x0E
233 /* Command register values. */
234 #define WI_CMD_BUSY 0x8000 /* busy bit */
235 #define WI_CMD_INI 0x0000 /* initialize */
236 #define WI_CMD_ENABLE 0x0001 /* enable */
237 #define WI_CMD_DISABLE 0x0002 /* disable */
238 #define WI_CMD_DIAG 0x0003
239 #define WI_CMD_ALLOC_MEM 0x000A /* allocate NIC memory */
240 #define WI_CMD_TX 0x000B /* transmit */
241 #define WI_CMD_NOTIFY 0x0010
242 #define WI_CMD_INQUIRE 0x0011
243 #define WI_CMD_ACCESS 0x0021
244 #define WI_CMD_PROGRAM 0x0022
246 #define WI_CMD_CODE_MASK 0x003F
249 * Reclaim qualifier bit, applicable to the
250 * TX and INQUIRE commands.
252 #define WI_RECLAIM 0x0100 /* reclaim NIC memory */
255 * ACCESS command qualifier bits.
257 #define WI_ACCESS_READ 0x0000
258 #define WI_ACCESS_WRITE 0x0100
261 * PROGRAM command qualifier bits.
263 #define WI_PROGRAM_DISABLE 0x0000
264 #define WI_PROGRAM_ENABLE_RAM 0x0100
265 #define WI_PROGRAM_ENABLE_NVRAM 0x0200
266 #define WI_PROGRAM_NVRAM 0x0300
268 /* Status register values */
269 #define WI_STAT_CMD_CODE 0x003F
270 #define WI_STAT_DIAG_ERR 0x0100
271 #define WI_STAT_INQ_ERR 0x0500
272 #define WI_STAT_CMD_RESULT 0x7F00
274 /* memory handle management registers */
275 #define WI_INFO_FID 0x10
276 #define WI_RX_FID 0x20
277 #define WI_ALLOC_FID 0x22
278 #define WI_TX_CMP_FID 0x24
281 * Buffer Access Path (BAP) registers.
282 * These are I/O channels. I believe you can use each one for
283 * any desired purpose independently of the other. In general
284 * though, we use BAP1 for reading and writing LTV records and
285 * reading received data frames, and BAP0 for writing transmit
286 * frames. This is a convention though, not a rule.
292 #define WI_DATA0 0x36
293 #define WI_DATA1 0x38
294 #define WI_BAP0 WI_DATA0
295 #define WI_BAP1 WI_DATA1
297 #define WI_OFF_BUSY 0x8000
298 #define WI_OFF_ERR 0x4000
299 #define WI_OFF_DATAOFF 0x0FFF
301 /* Event registers */
302 #define WI_EVENT_STAT 0x30 /* Event status */
303 #define WI_INT_EN 0x32 /* Interrupt enable/disable */
304 #define WI_EVENT_ACK 0x34 /* Ack event */
307 #define WI_EV_TICK 0x8000 /* aux timer tick */
308 #define WI_EV_RES 0x4000 /* controller h/w error (time out) */
309 #define WI_EV_INFO_DROP 0x2000 /* no RAM to build unsolicited frame */
310 #define WI_EV_NO_CARD 0x0800 /* card removed (hunh?) */
311 #define WI_EV_DUIF_RX 0x0400 /* wavelan management packet received */
312 #define WI_EV_INFO 0x0080 /* async info frame */
313 #define WI_EV_CMD 0x0010 /* command completed */
314 #define WI_EV_ALLOC 0x0008 /* async alloc/reclaim completed */
315 #define WI_EV_TX_EXC 0x0004 /* async xmit completed with failure */
316 #define WI_EV_TX 0x0002 /* async xmit completed succesfully */
317 #define WI_EV_RX 0x0001 /* async rx completed */
320 (WI_EV_RX|WI_EV_TX|WI_EV_TX_EXC|WI_EV_ALLOC|WI_EV_INFO|WI_EV_INFO_DROP)
322 /* Host software registers */
330 #define WI_CNTL_AUX_ENA 0xC000
331 #define WI_CNTL_AUX_ENA_STAT 0xC000
332 #define WI_CNTL_AUX_DIS_STAT 0x0000
333 #define WI_CNTL_AUX_ENA_CNTL 0x8000
334 #define WI_CNTL_AUX_DIS_CNTL 0x4000
336 #define WI_AUX_PAGE 0x3A
337 #define WI_AUX_OFFSET 0x3C
338 #define WI_AUX_DATA 0x3E
341 * One form of communication with the Hermes is with what Lucent calls
342 * LTV records, where LTV stands for Length, Type and Value. The length
343 * and type are 16 bits and are in native byte order. The value is in
344 * multiples of 16 bits and is in little endian byte order.
355 u_int16_t wi_str[17];
358 #define WI_SETVAL(recno, val) \
360 struct wi_ltv_gen g; \
365 wi_write_record(sc, &g); \
368 #define WI_SETSTR(recno, str) \
370 struct wi_ltv_str s; \
373 l = (strlen(str) + 1) & ~0x1; \
374 bzero((char *)&s, sizeof(s)); \
375 s.wi_len = (l / 2) + 2; \
377 s.wi_str[0] = strlen(str); \
378 bcopy(str, (char *)&s.wi_str[1], strlen(str)); \
379 wi_write_record(sc, (struct wi_ltv_gen *)&s); \
383 * Download buffer location and length (0xFD01).
385 #define WI_RID_DNLD_BUF 0xFD01
386 struct wi_ltv_dnld_buf {
389 u_int16_t wi_buf_pg; /* page addr of intermediate dl buf*/
390 u_int16_t wi_buf_off; /* offset of idb */
391 u_int16_t wi_buf_len; /* len of idb */
395 * Mem sizes (0xFD02).
397 #define WI_RID_MEMSZ 0xFD02
398 struct wi_ltv_memsz {
401 u_int16_t wi_mem_ram;
402 u_int16_t wi_mem_nvram;
406 * List of intended regulatory domains (0xFD11).
408 #define WI_RID_DOMAINS 0xFD11
409 struct wi_ltv_domains {
412 u_int16_t wi_domains[6];
416 * CIS struct (0xFD13).
418 #define WI_RID_CIS 0xFD13
422 u_int16_t wi_cis[240];
426 * Communications quality (0xFD43).
428 #define WI_RID_COMMQUAL 0xFD43
429 struct wi_ltv_commqual {
432 u_int16_t wi_coms_qual;
433 u_int16_t wi_sig_lvl;
434 u_int16_t wi_noise_lvl;
438 * Actual system scale thresholds (0xFD46).
440 #define WI_RID_SYSTEM_SCALE 0xFC06
441 #define WI_RID_SCALETHRESH 0xFD46
442 struct wi_ltv_scalethresh {
445 u_int16_t wi_energy_detect;
446 u_int16_t wi_carrier_detect;
448 u_int16_t wi_cell_search;
449 u_int16_t wi_out_of_range;
450 u_int16_t wi_delta_snr;
454 * PCF info struct (0xFD87).
456 #define WI_RID_PCF 0xFD87
460 u_int16_t wi_energy_detect;
461 u_int16_t wi_carrier_detect;
463 u_int16_t wi_cell_search;
468 * Connection control characteristics.
469 * 1 == Basic Service Set (BSS)
470 * 2 == Wireless Distribudion System (WDS)
473 #define WI_RID_PORTTYPE 0xFC00
474 #define WI_PORTTYPE_BSS 0x1
475 #define WI_PORTTYPE_WDS 0x2
476 #define WI_PORTTYPE_ADHOC 0x3
481 #define WI_RID_MAC_NODE 0xFC01
482 #define WI_RID_MAC_WDS 0xFC08
483 struct wi_ltv_macaddr {
486 u_int16_t wi_mac_addr[3];
490 * Station set identification (SSID).
492 #define WI_RID_DESIRED_SSID 0xFC02
493 #define WI_RID_OWN_SSID 0xFC04
501 * Set communications channel (radio frequency).
503 #define WI_RID_OWN_CHNL 0xFC03
508 #define WI_RID_MAX_DATALEN 0xFC07
511 * ESS power management enable
513 #define WI_RID_PM_ENABLED 0xFC09
516 * ESS max PM sleep internal
518 #define WI_RID_MAX_SLEEP 0xFC0C
521 * Set our station name.
523 #define WI_RID_NODENAME 0xFC0E
524 struct wi_ltv_nodename {
527 u_int16_t wi_nodename[17];
531 * Multicast addresses to be put in filter. We're
532 * allowed up to 16 addresses in the filter.
534 #define WI_RID_MCAST 0xFC80
535 struct wi_ltv_mcast {
538 struct ether_addr wi_mcast[16];
544 #define WI_RID_CREATE_IBSS 0xFC81
546 #define WI_RID_FRAG_THRESH 0xFC82
547 #define WI_RID_RTS_THRESH 0xFC83
555 #define WI_RID_TX_RATE 0xFC84
560 #define WI_RID_PROMISC 0xFC85
563 * Auxiliary Timer tick interval
565 #define WI_RID_TICK_TIME 0xFCE0
568 * Information frame types.
570 #define WI_INFO_NOTIFY 0xF000 /* Handover address */
571 #define WI_INFO_COUNTERS 0xF100 /* Statistics counters */
572 #define WI_INFO_SCAN_RESULTS 0xF101 /* Scan results */
573 #define WI_INFO_LINK_STAT 0xF200 /* Link status */
574 #define WI_INFO_ASSOC_STAT 0xF201 /* Association status */
577 * Hermes transmit/receive frame structure
580 u_int16_t wi_status; /* 0x00 */
581 u_int16_t wi_rsvd0; /* 0x02 */
582 u_int16_t wi_rsvd1; /* 0x04 */
583 u_int16_t wi_q_info; /* 0x06 */
584 u_int16_t wi_rsvd2; /* 0x08 */
585 u_int16_t wi_rsvd3; /* 0x0A */
586 u_int16_t wi_tx_ctl; /* 0x0C */
587 u_int16_t wi_frame_ctl; /* 0x0E */
588 u_int16_t wi_id; /* 0x10 */
589 u_int8_t wi_addr1[6]; /* 0x12 */
590 u_int8_t wi_addr2[6]; /* 0x18 */
591 u_int8_t wi_addr3[6]; /* 0x1E */
592 u_int16_t wi_seq_ctl; /* 0x24 */
593 u_int8_t wi_addr4[6]; /* 0x26 */
594 u_int16_t wi_dat_len; /* 0x2C */
595 u_int8_t wi_dst_addr[6]; /* 0x2E */
596 u_int8_t wi_src_addr[6]; /* 0x34 */
597 u_int16_t wi_len; /* 0x3A */
598 u_int16_t wi_dat[3]; /* 0x3C */ /* SNAP header */
599 u_int16_t wi_type; /* 0x42 */
602 #define WI_802_3_OFFSET 0x2E
603 #define WI_802_11_OFFSET 0x44
604 #define WI_802_11_OFFSET_RAW 0x3C
606 #define WI_STAT_BADCRC 0x0001
607 #define WI_STAT_UNDECRYPTABLE 0x0002
608 #define WI_STAT_ERRSTAT 0x0003
609 #define WI_STAT_MAC_PORT 0x0700
610 #define WI_STAT_1042 0x2000 /* RFC1042 encoded */
611 #define WI_STAT_TUNNEL 0x4000 /* Bridge-tunnel encoded */
612 #define WI_STAT_WMP_MSG 0x6000 /* WaveLAN-II management protocol */
613 #define WI_RXSTAT_MSG_TYPE 0xE000
615 #define WI_ENC_TX_802_3 0x00
616 #define WI_ENC_TX_802_11 0x11
617 #define WI_ENC_TX_E_II 0x0E
619 #define WI_ENC_TX_1042 0x00
620 #define WI_ENC_TX_TUNNEL 0xF8
622 #define WI_TXCNTL_MACPORT 0x00FF
623 #define WI_TXCNTL_STRUCTTYPE 0xFF00
626 * SNAP (sub-network access protocol) constants for transmission
627 * of IP datagrams over IEEE 802 networks, taken from RFC1042.
628 * We need these for the LLC/SNAP header fields in the TX/RX frame
631 #define WI_SNAP_K1 0xaa /* assigned global SAP for SNAP */
632 #define WI_SNAP_K2 0x00
633 #define WI_SNAP_CONTROL 0x03 /* unnumbered information format */
634 #define WI_SNAP_WORD0 (WI_SNAP_K1 | (WI_SNAP_K1 << 8))
635 #define WI_SNAP_WORD1 (WI_SNAP_K2 | (WI_SNAP_CONTROL << 8))
636 #define WI_SNAPHDR_LEN 0x6