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if_rum - Reapply ratectl fix from 12ae2d804aa2cd27a8e9884f125d484784e76e75.
[dragonfly.git] / sys / bus / u4b / wlan / if_rum.c
blob7dfdadb24b39424c461b7941ff038c068b7e9de6
1 /* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 276701 2015-01-05 15:04:17Z hselasky $ */
2
3 /*-
4 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr>
5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
6 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org>
7 *
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 */
20
21 /*-
22 * Ralink Technology RT2501USB/RT2601USB chipset driver
23 * http://www.ralinktech.com.tw/
24 */
25
26 #include <sys/param.h>
27 #include <sys/sockio.h>
28 #include <sys/sysctl.h>
29 #include <sys/lock.h>
30 #include <sys/mbuf.h>
31 #include <sys/kernel.h>
32 #include <sys/socket.h>
33 #include <sys/systm.h>
34 #include <sys/malloc.h>
35 #include <sys/module.h>
36 #include <sys/bus.h>
37 #include <sys/endian.h>
38
39 #include <sys/rman.h>
40
41 #include <net/bpf.h>
42 #include <net/if.h>
43 #include <net/if_arp.h>
44 #include <net/ethernet.h>
45 #include <net/if_dl.h>
46 #include <net/if_media.h>
47 #include <net/if_types.h>
48 #include <net/ifq_var.h>
49
50 #ifdef INET
51 #include <netinet/in.h>
52 #include <netinet/in_systm.h>
53 #include <netinet/in_var.h>
54 #include <netinet/if_ether.h>
55 #include <netinet/ip.h>
56 #endif
57
58 #include <netproto/802_11/ieee80211_var.h>
59 #include <netproto/802_11/ieee80211_regdomain.h>
60 #include <netproto/802_11/ieee80211_radiotap.h>
61 #include <netproto/802_11/ieee80211_ratectl.h>
62
63 #include <bus/u4b/usb.h>
64 #include <bus/u4b/usbdi.h>
65 #include "usbdevs.h"
66
67 #define USB_DEBUG_VAR rum_debug
68 #include <bus/u4b/usb_debug.h>
69
70 #include <bus/u4b/wlan/if_rumreg.h>
71 #include <bus/u4b/wlan/if_rumvar.h>
72 #include <bus/u4b/wlan/if_rumfw.h>
73
74 #ifdef USB_DEBUG
75 static int rum_debug = 0;
76
77 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum");
78 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0,
79 "Debug level");
80 #endif
81
82 #define N(a) ((int)(sizeof (a) / sizeof ((a)[0])))
83
84 static const STRUCT_USB_HOST_ID rum_devs[] = {
85 #define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
86 RUM_DEV(ABOCOM, HWU54DM),
87 RUM_DEV(ABOCOM, RT2573_2),
88 RUM_DEV(ABOCOM, RT2573_3),
89 RUM_DEV(ABOCOM, RT2573_4),
90 RUM_DEV(ABOCOM, WUG2700),
91 RUM_DEV(AMIT, CGWLUSB2GO),
92 RUM_DEV(ASUS, RT2573_1),
93 RUM_DEV(ASUS, RT2573_2),
94 RUM_DEV(BELKIN, F5D7050A),
95 RUM_DEV(BELKIN, F5D9050V3),
96 RUM_DEV(CISCOLINKSYS, WUSB54GC),
97 RUM_DEV(CISCOLINKSYS, WUSB54GR),
98 RUM_DEV(CONCEPTRONIC2, C54RU2),
99 RUM_DEV(COREGA, CGWLUSB2GL),
100 RUM_DEV(COREGA, CGWLUSB2GPX),
101 RUM_DEV(DICKSMITH, CWD854F),
102 RUM_DEV(DICKSMITH, RT2573),
103 RUM_DEV(EDIMAX, EW7318USG),
104 RUM_DEV(DLINK2, DWLG122C1),
105 RUM_DEV(DLINK2, WUA1340),
106 RUM_DEV(DLINK2, DWA111),
107 RUM_DEV(DLINK2, DWA110),
108 RUM_DEV(GIGABYTE, GNWB01GS),
109 RUM_DEV(GIGABYTE, GNWI05GS),
110 RUM_DEV(GIGASET, RT2573),
111 RUM_DEV(GOODWAY, RT2573),
112 RUM_DEV(GUILLEMOT, HWGUSB254LB),
113 RUM_DEV(GUILLEMOT, HWGUSB254V2AP),
114 RUM_DEV(HUAWEI3COM, WUB320G),
115 RUM_DEV(MELCO, G54HP),
116 RUM_DEV(MELCO, SG54HP),
117 RUM_DEV(MELCO, SG54HG),
118 RUM_DEV(MELCO, WLIUCG),
119 RUM_DEV(MELCO, WLRUCG),
120 RUM_DEV(MELCO, WLRUCGAOSS),
121 RUM_DEV(MSI, RT2573_1),
122 RUM_DEV(MSI, RT2573_2),
123 RUM_DEV(MSI, RT2573_3),
124 RUM_DEV(MSI, RT2573_4),
125 RUM_DEV(NOVATECH, RT2573),
126 RUM_DEV(PLANEX2, GWUS54HP),
127 RUM_DEV(PLANEX2, GWUS54MINI2),
128 RUM_DEV(PLANEX2, GWUSMM),
129 RUM_DEV(QCOM, RT2573),
130 RUM_DEV(QCOM, RT2573_2),
131 RUM_DEV(QCOM, RT2573_3),
132 RUM_DEV(RALINK, RT2573),
133 RUM_DEV(RALINK, RT2573_2),
134 RUM_DEV(RALINK, RT2671),
135 RUM_DEV(SITECOMEU, WL113R2),
136 RUM_DEV(SITECOMEU, WL172),
137 RUM_DEV(SPARKLAN, RT2573),
138 RUM_DEV(SURECOM, RT2573),
139 #undef RUM_DEV
140 };
141
142 static device_probe_t rum_match;
143 static device_attach_t rum_attach;
144 static device_detach_t rum_detach;
145
146 static usb_callback_t rum_bulk_read_callback;
147 static usb_callback_t rum_bulk_write_callback;
148
149 static usb_error_t rum_do_request(struct rum_softc *sc,
150 struct usb_device_request *req, void *data);
151 static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
152 const char [IFNAMSIZ], int,
153 enum ieee80211_opmode,
154 int, const uint8_t [IEEE80211_ADDR_LEN],
155 const uint8_t [IEEE80211_ADDR_LEN]);
156 static void rum_vap_delete(struct ieee80211vap *);
157 static void rum_tx_free(struct rum_tx_data *, int);
158 static void rum_setup_tx_list(struct rum_softc *);
159 static void rum_unsetup_tx_list(struct rum_softc *);
160 static int rum_newstate(struct ieee80211vap *,
161 enum ieee80211_state, int);
162 static void rum_setup_tx_desc(struct rum_softc *,
163 struct rum_tx_desc *, uint32_t, uint16_t, int,
164 int);
165 static int rum_tx_mgt(struct rum_softc *, struct mbuf *,
166 struct ieee80211_node *);
167 static int rum_tx_raw(struct rum_softc *, struct mbuf *,
168 struct ieee80211_node *,
169 const struct ieee80211_bpf_params *);
170 static int rum_tx_data(struct rum_softc *, struct mbuf *,
171 struct ieee80211_node *);
172 static void rum_start(struct ifnet *, struct ifaltq_subque *);
173 static int rum_ioctl(struct ifnet *, u_long, caddr_t,
174 struct ucred *);
175 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
176 int);
177 static uint32_t rum_read(struct rum_softc *, uint16_t);
178 static void rum_read_multi(struct rum_softc *, uint16_t, void *,
179 int);
180 static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t);
181 static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *,
182 size_t);
183 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
184 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
185 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
186 static void rum_select_antenna(struct rum_softc *);
187 static void rum_enable_mrr(struct rum_softc *);
188 static void rum_set_txpreamble(struct rum_softc *);
189 static void rum_set_basicrates(struct rum_softc *);
190 static void rum_select_band(struct rum_softc *,
191 struct ieee80211_channel *);
192 static void rum_set_chan(struct rum_softc *,
193 struct ieee80211_channel *);
194 static void rum_enable_tsf_sync(struct rum_softc *);
195 static void rum_enable_tsf(struct rum_softc *);
196 static void rum_update_slot(struct ifnet *);
197 static void rum_set_bssid(struct rum_softc *, const uint8_t *);
198 static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
199 static void rum_update_mcast(struct ifnet *);
200 static void rum_update_promisc(struct ifnet *);
201 static void rum_setpromisc(struct rum_softc *);
202 static const char *rum_get_rf(int);
203 static void rum_read_eeprom(struct rum_softc *);
204 static int rum_bbp_init(struct rum_softc *);
205 static void rum_init_locked(struct rum_softc *);
206 static void rum_init(void *);
207 static void rum_stop(struct rum_softc *);
208 static void rum_load_microcode(struct rum_softc *, const uint8_t *,
209 size_t);
210 static void rum_prepare_beacon(struct rum_softc *,
211 struct ieee80211vap *);
212 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
213 const struct ieee80211_bpf_params *);
214 static void rum_scan_start(struct ieee80211com *);
215 static void rum_scan_end(struct ieee80211com *);
216 static void rum_set_channel(struct ieee80211com *);
217 static int rum_get_rssi(struct rum_softc *, uint8_t);
218 static void rum_ratectl_start(struct rum_softc *,
219 struct ieee80211_node *);
220 static void rum_ratectl_timeout(void *);
221 static void rum_ratectl_task(void *, int);
222 static int rum_pause(struct rum_softc *, int);
223
224 static const struct {
225 uint32_t reg;
226 uint32_t val;
227 } rum_def_mac[] = {
228 { RT2573_TXRX_CSR0, 0x025fb032 },
229 { RT2573_TXRX_CSR1, 0x9eaa9eaf },
230 { RT2573_TXRX_CSR2, 0x8a8b8c8d },
231 { RT2573_TXRX_CSR3, 0x00858687 },
232 { RT2573_TXRX_CSR7, 0x2e31353b },
233 { RT2573_TXRX_CSR8, 0x2a2a2a2c },
234 { RT2573_TXRX_CSR15, 0x0000000f },
235 { RT2573_MAC_CSR6, 0x00000fff },
236 { RT2573_MAC_CSR8, 0x016c030a },
237 { RT2573_MAC_CSR10, 0x00000718 },
238 { RT2573_MAC_CSR12, 0x00000004 },
239 { RT2573_MAC_CSR13, 0x00007f00 },
240 { RT2573_SEC_CSR0, 0x00000000 },
241 { RT2573_SEC_CSR1, 0x00000000 },
242 { RT2573_SEC_CSR5, 0x00000000 },
243 { RT2573_PHY_CSR1, 0x000023b0 },
244 { RT2573_PHY_CSR5, 0x00040a06 },
245 { RT2573_PHY_CSR6, 0x00080606 },
246 { RT2573_PHY_CSR7, 0x00000408 },
247 { RT2573_AIFSN_CSR, 0x00002273 },
248 { RT2573_CWMIN_CSR, 0x00002344 },
249 { RT2573_CWMAX_CSR, 0x000034aa }
250 };
251
252 static const struct {
253 uint8_t reg;
254 uint8_t val;
255 } rum_def_bbp[] = {
256 { 3, 0x80 },
257 { 15, 0x30 },
258 { 17, 0x20 },
259 { 21, 0xc8 },
260 { 22, 0x38 },
261 { 23, 0x06 },
262 { 24, 0xfe },
263 { 25, 0x0a },
264 { 26, 0x0d },
265 { 32, 0x0b },
266 { 34, 0x12 },
267 { 37, 0x07 },
268 { 39, 0xf8 },
269 { 41, 0x60 },
270 { 53, 0x10 },
271 { 54, 0x18 },
272 { 60, 0x10 },
273 { 61, 0x04 },
274 { 62, 0x04 },
275 { 75, 0xfe },
276 { 86, 0xfe },
277 { 88, 0xfe },
278 { 90, 0x0f },
279 { 99, 0x00 },
280 { 102, 0x16 },
281 { 107, 0x04 }
282 };
283
284 static const struct rfprog {
285 uint8_t chan;
286 uint32_t r1, r2, r3, r4;
287 } rum_rf5226[] = {
288 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
289 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
290 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
291 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
292 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
293 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
294 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
295 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
296 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
297 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
298 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
299 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
300 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
301 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
302
303 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 },
304 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 },
305 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 },
306 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 },
307
308 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 },
309 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 },
310 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 },
311 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
312 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
313 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
314 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
315 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
316
317 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
318 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
319 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
320 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
321 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
322 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
323 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
324 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
325 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
326 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
327 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
328
329 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
330 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
331 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
332 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
333 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
334 }, rum_rf5225[] = {
335 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
336 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
337 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
338 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
339 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
340 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
341 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
342 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
343 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
344 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
345 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
346 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
347 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
348 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
349
350 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 },
351 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 },
352 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 },
353 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 },
354
355 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 },
356 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 },
357 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 },
358 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
359 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
360 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
361 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
362 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
363
364 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
365 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
366 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
367 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
368 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
369 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
370 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
371 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
372 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
373 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
374 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
375
376 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
377 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
378 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
379 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
380 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
381 };
382
383 static const struct usb_config rum_config[RUM_N_TRANSFER] = {
384 [RUM_BULK_WR] = {
385 .type = UE_BULK,
386 .endpoint = UE_ADDR_ANY,
387 .direction = UE_DIR_OUT,
388 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
389 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
390 .callback = rum_bulk_write_callback,
391 .timeout = 5000, /* ms */
392 },
393 [RUM_BULK_RD] = {
394 .type = UE_BULK,
395 .endpoint = UE_ADDR_ANY,
396 .direction = UE_DIR_IN,
397 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
398 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
399 .callback = rum_bulk_read_callback,
400 },
401 };
402
403 static int
404 rum_match(device_t self)
405 {
406 struct usb_attach_arg *uaa = device_get_ivars(self);
407
408 if (uaa->usb_mode != USB_MODE_HOST)
409 return (ENXIO);
410 if (uaa->info.bConfigIndex != 0)
411 return (ENXIO);
412 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
413 return (ENXIO);
414
415 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
416 }
417
418 static int
419 rum_attach(device_t self)
420 {
421 struct usb_attach_arg *uaa = device_get_ivars(self);
422 struct rum_softc *sc = device_get_softc(self);
423 struct ieee80211com *ic;
424 struct ifnet *ifp;
425 uint8_t iface_index, bands;
426 uint32_t tmp;
427 int error, ntries;
428
429 wlan_serialize_enter();
430 device_set_usb_desc(self);
431 sc->sc_udev = uaa->device;
432 sc->sc_dev = self;
433
434 lockinit(&sc->sc_lock, device_get_nameunit(self), 0, LK_CANRECURSE);
435
436 iface_index = RT2573_IFACE_INDEX;
437 error = usbd_transfer_setup(uaa->device, &iface_index,
438 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_lock);
439 if (error) {
440 device_printf(self, "could not allocate USB transfers, "
441 "err=%s\n", usbd_errstr(error));
442 goto detach;
443 }
444
445 RUM_LOCK(sc);
446 /* retrieve RT2573 rev. no */
447 for (ntries = 0; ntries < 100; ntries++) {
448 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
449 break;
450 if (rum_pause(sc, hz / 100))
451 break;
452 }
453 if (ntries == 100) {
454 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
455 RUM_UNLOCK(sc);
456 goto detach;
457 }
458
459 /* retrieve MAC address and various other things from EEPROM */
460 rum_read_eeprom(sc);
461
462 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
463 tmp, rum_get_rf(sc->rf_rev));
464
465 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
466 RUM_UNLOCK(sc);
467
468 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
469 if (ifp == NULL) {
470 device_printf(sc->sc_dev, "can not if_alloc()\n");
471 goto detach;
472 }
473 ic = ifp->if_l2com;
474
475 ifp->if_softc = sc;
476 if_initname(ifp, "rum", device_get_unit(sc->sc_dev));
477 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
478 ifp->if_init = rum_init;
479 ifp->if_ioctl = rum_ioctl;
480 ifp->if_start = rum_start;
481 ifq_set_maxlen(&ifp->if_snd, ifqmaxlen);
482 #if 0 /* XXX swildner: see c3d4131842e47b168d93a0650d58d425ebeef789 */
483 ifq_set_ready(&ifp->if_snd);
484 #endif
485 ic->ic_ifp = ifp;
486 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
487
488 /* set device capabilities */
489 ic->ic_caps =
490 IEEE80211_C_STA /* station mode supported */
491 | IEEE80211_C_IBSS /* IBSS mode supported */
492 | IEEE80211_C_MONITOR /* monitor mode supported */
493 | IEEE80211_C_HOSTAP /* HostAp mode supported */
494 | IEEE80211_C_TXPMGT /* tx power management */
495 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
496 | IEEE80211_C_SHSLOT /* short slot time supported */
497 | IEEE80211_C_BGSCAN /* bg scanning supported */
498 | IEEE80211_C_WPA /* 802.11i */
499 ;
500
501 bands = 0;
502 setbit(&bands, IEEE80211_MODE_11B);
503 setbit(&bands, IEEE80211_MODE_11G);
504 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226)
505 setbit(&bands, IEEE80211_MODE_11A);
506 ieee80211_init_channels(ic, NULL, &bands);
507
508 ieee80211_ifattach(ic, sc->sc_bssid);
509 ic->ic_update_promisc = rum_update_promisc;
510 ic->ic_raw_xmit = rum_raw_xmit;
511 ic->ic_scan_start = rum_scan_start;
512 ic->ic_scan_end = rum_scan_end;
513 ic->ic_set_channel = rum_set_channel;
514
515 ic->ic_vap_create = rum_vap_create;
516 ic->ic_vap_delete = rum_vap_delete;
517 ic->ic_update_mcast = rum_update_mcast;
518
519 ieee80211_radiotap_attach(ic,
520 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
521 RT2573_TX_RADIOTAP_PRESENT,
522 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
523 RT2573_RX_RADIOTAP_PRESENT);
524
525 if (bootverbose)
526 ieee80211_announce(ic);
527
528 wlan_serialize_exit();
529 return (0);
530
531 detach:
532 wlan_serialize_exit();
533 rum_detach(self);
534 return (ENXIO); /* failure */
535 }
536
537 static int
538 rum_detach(device_t self)
539 {
540 struct rum_softc *sc = device_get_softc(self);
541 struct ifnet *ifp = sc->sc_ifp;
542 struct ieee80211com *ic;
543
544 wlan_serialize_enter();
545 /* Prevent further ioctls */
546 RUM_LOCK(sc);
547 sc->sc_detached = 1;
548 RUM_UNLOCK(sc);
549
550 /* stop all USB transfers */
551 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
552
553 /* free TX list, if any */
554 RUM_LOCK(sc);
555 rum_unsetup_tx_list(sc);
556 RUM_UNLOCK(sc);
557
558 if (ifp) {
559 ic = ifp->if_l2com;
560 ieee80211_ifdetach(ic);
561 if_free(ifp);
562 }
563 lockuninit(&sc->sc_lock);
564 wlan_serialize_exit();
565 return (0);
566 }
567
568 static usb_error_t
569 rum_do_request(struct rum_softc *sc,
570 struct usb_device_request *req, void *data)
571 {
572 usb_error_t err;
573 int ntries = 10;
574
575 while (ntries--) {
576 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_lock,
577 req, data, 0, NULL, 250 /* ms */);
578 if (err == 0)
579 break;
580
581 DPRINTFN(1, "Control request failed, %s (retrying)\n",
582 usbd_errstr(err));
583 if (rum_pause(sc, hz / 100))
584 break;
585 }
586 return (err);
587 }
588
589 static struct ieee80211vap *
590 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
591 enum ieee80211_opmode opmode, int flags,
592 const uint8_t bssid[IEEE80211_ADDR_LEN],
593 const uint8_t mac[IEEE80211_ADDR_LEN])
594 {
595 struct rum_softc *sc = ic->ic_ifp->if_softc;
596 struct rum_vap *rvp;
597 struct ieee80211vap *vap;
598
599 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
600 return NULL;
601 rvp = (struct rum_vap *) kmalloc(sizeof(struct rum_vap),
602 M_80211_VAP, M_INTWAIT | M_ZERO);
603 if (rvp == NULL)
604 return NULL;
605 vap = &rvp->vap;
606 /* enable s/w bmiss handling for sta mode */
607
608 if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
609 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac) != 0) {
610 /* out of memory */
611 kfree(rvp, M_80211_VAP);
612 return (NULL);
613 }
614
615 /* override state transition machine */
616 rvp->newstate = vap->iv_newstate;
617 vap->iv_newstate = rum_newstate;
618
619 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_lock, 0);
620 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
621 ieee80211_ratectl_init(vap);
622 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
623 /* complete setup */
624 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
625 ic->ic_opmode = opmode;
626 return vap;
627 }
628
629 static void
630 rum_vap_delete(struct ieee80211vap *vap)
631 {
632 struct rum_vap *rvp = RUM_VAP(vap);
633 struct ieee80211com *ic = vap->iv_ic;
634
635 usb_callout_drain(&rvp->ratectl_ch);
636 ieee80211_draintask(ic, &rvp->ratectl_task);
637 ieee80211_ratectl_deinit(vap);
638 ieee80211_vap_detach(vap);
639 kfree(rvp, M_80211_VAP);
640 }
641
642 static void
643 rum_tx_free(struct rum_tx_data *data, int txerr)
644 {
645 struct rum_softc *sc = data->sc;
646
647 if (data->m != NULL) {
648 if (data->m->m_flags & M_TXCB)
649 ieee80211_process_callback(data->ni, data->m,
650 txerr ? ETIMEDOUT : 0);
651 m_freem(data->m);
652 data->m = NULL;
653
654 ieee80211_free_node(data->ni);
655 data->ni = NULL;
656 }
657 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
658 sc->tx_nfree++;
659 }
660
661 static void
662 rum_setup_tx_list(struct rum_softc *sc)
663 {
664 struct rum_tx_data *data;
665 int i;
666
667 sc->tx_nfree = 0;
668 STAILQ_INIT(&sc->tx_q);
669 STAILQ_INIT(&sc->tx_free);
670
671 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
672 data = &sc->tx_data[i];
673
674 data->sc = sc;
675 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
676 sc->tx_nfree++;
677 }
678 }
679
680 static void
681 rum_unsetup_tx_list(struct rum_softc *sc)
682 {
683 struct rum_tx_data *data;
684 int i;
685
686 /* make sure any subsequent use of the queues will fail */
687 sc->tx_nfree = 0;
688 STAILQ_INIT(&sc->tx_q);
689 STAILQ_INIT(&sc->tx_free);
690
691 /* free up all node references and mbufs */
692 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
693 data = &sc->tx_data[i];
694
695 if (data->m != NULL) {
696 m_freem(data->m);
697 data->m = NULL;
698 }
699 if (data->ni != NULL) {
700 ieee80211_free_node(data->ni);
701 data->ni = NULL;
702 }
703 }
704 }
705
706 static int
707 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
708 {
709 struct rum_vap *rvp = RUM_VAP(vap);
710 struct ieee80211com *ic = vap->iv_ic;
711 struct rum_softc *sc = ic->ic_ifp->if_softc;
712 const struct ieee80211_txparam *tp;
713 enum ieee80211_state ostate;
714 struct ieee80211_node *ni;
715 uint32_t tmp;
716
717 ostate = vap->iv_state;
718 DPRINTF("%s -> %s\n",
719 ieee80211_state_name[ostate],
720 ieee80211_state_name[nstate]);
721
722 IEEE80211_UNLOCK(ic);
723 RUM_LOCK(sc);
724 usb_callout_stop(&rvp->ratectl_ch);
725
726 switch (nstate) {
727 case IEEE80211_S_INIT:
728 if (ostate == IEEE80211_S_RUN) {
729 /* abort TSF synchronization */
730 tmp = rum_read(sc, RT2573_TXRX_CSR9);
731 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
732 }
733 break;
734
735 case IEEE80211_S_RUN:
736 ni = ieee80211_ref_node(vap->iv_bss);
737
738 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
739 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) {
740 RUM_UNLOCK(sc);
741 IEEE80211_LOCK(ic);
742 ieee80211_free_node(ni);
743 return (-1);
744 }
745 rum_update_slot(ic->ic_ifp);
746 rum_enable_mrr(sc);
747 rum_set_txpreamble(sc);
748 rum_set_basicrates(sc);
749 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
750 rum_set_bssid(sc, sc->sc_bssid);
751 }
752
753 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
754 vap->iv_opmode == IEEE80211_M_IBSS)
755 rum_prepare_beacon(sc, vap);
756
757 if (vap->iv_opmode != IEEE80211_M_MONITOR)
758 rum_enable_tsf_sync(sc);
759 else
760 rum_enable_tsf(sc);
761
762 /* enable automatic rate adaptation */
763 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
764 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
765 rum_ratectl_start(sc, ni);
766 ieee80211_free_node(ni);
767 break;
768 default:
769 break;
770 }
771 RUM_UNLOCK(sc);
772 IEEE80211_LOCK(ic);
773 return (rvp->newstate(vap, nstate, arg));
774 }
775
776 static void
777 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
778 {
779 struct rum_softc *sc = usbd_xfer_softc(xfer);
780 struct ifnet *ifp = sc->sc_ifp;
781 struct ieee80211vap *vap;
782 struct rum_tx_data *data;
783 struct mbuf *m;
784 struct usb_page_cache *pc;
785 unsigned int len;
786 int actlen, sumlen;
787
788 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
789
790 switch (USB_GET_STATE(xfer)) {
791 case USB_ST_TRANSFERRED:
792 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
793
794 /* free resources */
795 data = usbd_xfer_get_priv(xfer);
796 rum_tx_free(data, 0);
797 usbd_xfer_set_priv(xfer, NULL);
798
799 IFNET_STAT_INC(ifp, opackets, 1);
800 ifq_clr_oactive(&ifp->if_snd);
801
802 /* FALLTHROUGH */
803 case USB_ST_SETUP:
804 tr_setup:
805 data = STAILQ_FIRST(&sc->tx_q);
806 if (data) {
807 STAILQ_REMOVE_HEAD(&sc->tx_q, next);
808 m = data->m;
809
810 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) {
811 DPRINTFN(0, "data overflow, %u bytes\n",
812 m->m_pkthdr.len);
813 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
814 }
815 pc = usbd_xfer_get_frame(xfer, 0);
816 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
817 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
818 m->m_pkthdr.len);
819
820 vap = data->ni->ni_vap;
821 if (ieee80211_radiotap_active_vap(vap)) {
822 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
823
824 tap->wt_flags = 0;
825 tap->wt_rate = data->rate;
826 tap->wt_antenna = sc->tx_ant;
827
828 ieee80211_radiotap_tx(vap, m);
829 }
830
831 /* align end on a 4-bytes boundary */
832 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
833 if ((len % 64) == 0)
834 len += 4;
835
836 DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
837 m->m_pkthdr.len, len);
838
839 usbd_xfer_set_frame_len(xfer, 0, len);
840 usbd_xfer_set_priv(xfer, data);
841
842 usbd_transfer_submit(xfer);
843 }
844 RUM_UNLOCK(sc);
845 rum_start(ifp, NULL);
846 RUM_LOCK(sc);
847 break;
848
849 default: /* Error */
850 DPRINTFN(11, "transfer error, %s\n",
851 usbd_errstr(error));
852
853 IFNET_STAT_INC(ifp, oerrors, 1);
854 data = usbd_xfer_get_priv(xfer);
855 if (data != NULL) {
856 rum_tx_free(data, error);
857 usbd_xfer_set_priv(xfer, NULL);
858 }
859
860 if (error != USB_ERR_CANCELLED) {
861 if (error == USB_ERR_TIMEOUT)
862 device_printf(sc->sc_dev, "device timeout\n");
863
864 /*
865 * Try to clear stall first, also if other
866 * errors occur, hence clearing stall
867 * introduces a 50 ms delay:
868 */
869 usbd_xfer_set_stall(xfer);
870 goto tr_setup;
871 }
872 break;
873 }
874 }
875
876 static void
877 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
878 {
879 struct rum_softc *sc = usbd_xfer_softc(xfer);
880 struct ifnet *ifp = sc->sc_ifp;
881 struct ieee80211com *ic = ifp->if_l2com;
882 struct ieee80211_node *ni;
883 struct mbuf *m = NULL;
884 struct usb_page_cache *pc;
885 uint32_t flags;
886 uint8_t rssi = 0;
887 int len;
888
889 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
890
891 switch (USB_GET_STATE(xfer)) {
892 case USB_ST_TRANSFERRED:
893
894 DPRINTFN(15, "rx done, actlen=%d\n", len);
895
896 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) {
897 DPRINTF("%s: xfer too short %d\n",
898 device_get_nameunit(sc->sc_dev), len);
899 IFNET_STAT_INC(ifp, ierrors, 1);
900 goto tr_setup;
901 }
902
903 len -= RT2573_RX_DESC_SIZE;
904 pc = usbd_xfer_get_frame(xfer, 0);
905 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
906
907 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
908 flags = le32toh(sc->sc_rx_desc.flags);
909 if (flags & RT2573_RX_CRC_ERROR) {
910 /*
911 * This should not happen since we did not
912 * request to receive those frames when we
913 * filled RUM_TXRX_CSR2:
914 */
915 DPRINTFN(5, "PHY or CRC error\n");
916 IFNET_STAT_INC(ifp, ierrors, 1);
917 goto tr_setup;
918 }
919
920 m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
921 if (m == NULL) {
922 DPRINTF("could not allocate mbuf\n");
923 IFNET_STAT_INC(ifp, ierrors, 1);
924 goto tr_setup;
925 }
926 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
927 mtod(m, uint8_t *), len);
928
929 /* finalize mbuf */
930 m->m_pkthdr.rcvif = ifp;
931 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff;
932
933 if (ieee80211_radiotap_active(ic)) {
934 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
935
936 /* XXX read tsf */
937 tap->wr_flags = 0;
938 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
939 (flags & RT2573_RX_OFDM) ?
940 IEEE80211_T_OFDM : IEEE80211_T_CCK);
941 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
942 tap->wr_antnoise = RT2573_NOISE_FLOOR;
943 tap->wr_antenna = sc->rx_ant;
944 }
945 /* FALLTHROUGH */
946 case USB_ST_SETUP:
947 tr_setup:
948 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
949 usbd_transfer_submit(xfer);
950
951 /*
952 * At the end of a USB callback it is always safe to unlock
953 * the private mutex of a device! That is why we do the
954 * "ieee80211_input" here, and not some lines up!
955 */
956 RUM_UNLOCK(sc);
957 if (m) {
958 ni = ieee80211_find_rxnode(ic,
959 mtod(m, struct ieee80211_frame_min *));
960 if (ni != NULL) {
961 (void) ieee80211_input(ni, m, rssi,
962 RT2573_NOISE_FLOOR);
963 ieee80211_free_node(ni);
964 } else
965 (void) ieee80211_input_all(ic, m, rssi,
966 RT2573_NOISE_FLOOR);
967 }
968 if (!ifq_is_oactive(&ifp->if_snd) &&
969 !ifq_is_empty(&ifp->if_snd))
970 rum_start(ifp, NULL);
971 RUM_LOCK(sc);
972 return;
973
974 default: /* Error */
975 if (error != USB_ERR_CANCELLED) {
976 /* try to clear stall first */
977 usbd_xfer_set_stall(xfer);
978 goto tr_setup;
979 }
980 return;
981 }
982 }
983
984 static uint8_t
985 rum_plcp_signal(int rate)
986 {
987 switch (rate) {
988 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
989 case 12: return 0xb;
990 case 18: return 0xf;
991 case 24: return 0xa;
992 case 36: return 0xe;
993 case 48: return 0x9;
994 case 72: return 0xd;
995 case 96: return 0x8;
996 case 108: return 0xc;
997
998 /* CCK rates (NB: not IEEE std, device-specific) */
999 case 2: return 0x0;
1000 case 4: return 0x1;
1001 case 11: return 0x2;
1002 case 22: return 0x3;
1003 }
1004 return 0xff; /* XXX unsupported/unknown rate */
1005 }
1006
1007 static void
1008 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
1009 uint32_t flags, uint16_t xflags, int len, int rate)
1010 {
1011 struct ifnet *ifp = sc->sc_ifp;
1012 struct ieee80211com *ic = ifp->if_l2com;
1013 uint16_t plcp_length;
1014 int remainder;
1015
1016 desc->flags = htole32(flags);
1017 desc->flags |= htole32(RT2573_TX_VALID);
1018 desc->flags |= htole32(len << 16);
1019
1020 desc->xflags = htole16(xflags);
1021
1022 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) |
1023 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10));
1024
1025 /* setup PLCP fields */
1026 desc->plcp_signal = rum_plcp_signal(rate);
1027 desc->plcp_service = 4;
1028
1029 len += IEEE80211_CRC_LEN;
1030 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1031 desc->flags |= htole32(RT2573_TX_OFDM);
1032
1033 plcp_length = len & 0xfff;
1034 desc->plcp_length_hi = plcp_length >> 6;
1035 desc->plcp_length_lo = plcp_length & 0x3f;
1036 } else {
1037 if (rate == 0)
1038 rate = 2; /* avoid division by zero */
1039 plcp_length = (16 * len + rate - 1) / rate;
1040 if (rate == 22) {
1041 remainder = (16 * len) % 22;
1042 if (remainder != 0 && remainder < 7)
1043 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1044 }
1045 desc->plcp_length_hi = plcp_length >> 8;
1046 desc->plcp_length_lo = plcp_length & 0xff;
1047
1048 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1049 desc->plcp_signal |= 0x08;
1050 }
1051 }
1052
1053 static int
1054 rum_sendprot(struct rum_softc *sc,
1055 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1056 {
1057 struct ieee80211com *ic = ni->ni_ic;
1058 const struct ieee80211_frame *wh;
1059 struct rum_tx_data *data;
1060 struct mbuf *mprot;
1061 int protrate, ackrate, pktlen, flags, isshort;
1062 uint16_t dur;
1063
1064 RUM_LOCK_ASSERT(sc, MA_OWNED);
1065 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1066 ("protection %d", prot));
1067
1068 wh = mtod(m, const struct ieee80211_frame *);
1069 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1070
1071 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1072 ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
1073
1074 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1075 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1076 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1077 flags = RT2573_TX_MORE_FRAG;
1078 if (prot == IEEE80211_PROT_RTSCTS) {
1079 /* NB: CTS is the same size as an ACK */
1080 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1081 flags |= RT2573_TX_NEED_ACK;
1082 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1083 } else {
1084 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1085 }
1086 if (mprot == NULL) {
1087 /* XXX stat + msg */
1088 return (ENOBUFS);
1089 }
1090 data = STAILQ_FIRST(&sc->tx_free);
1091 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1092 sc->tx_nfree--;
1093
1094 data->m = mprot;
1095 data->ni = ieee80211_ref_node(ni);
1096 data->rate = protrate;
1097 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate);
1098
1099 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1100 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1101
1102 return 0;
1103 }
1104
1105 static int
1106 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1107 {
1108 struct ieee80211vap *vap = ni->ni_vap;
1109 struct ifnet *ifp = sc->sc_ifp;
1110 struct ieee80211com *ic = ifp->if_l2com;
1111 struct rum_tx_data *data;
1112 struct ieee80211_frame *wh;
1113 const struct ieee80211_txparam *tp;
1114 struct ieee80211_key *k;
1115 uint32_t flags = 0;
1116 uint16_t dur;
1117
1118 RUM_LOCK_ASSERT(sc, MA_OWNED);
1119
1120 data = STAILQ_FIRST(&sc->tx_free);
1121 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1122 sc->tx_nfree--;
1123
1124 wh = mtod(m0, struct ieee80211_frame *);
1125 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1126 k = ieee80211_crypto_encap(ni, m0);
1127 if (k == NULL) {
1128 m_freem(m0);
1129 return ENOBUFS;
1130 }
1131 wh = mtod(m0, struct ieee80211_frame *);
1132 }
1133
1134 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1135
1136 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1137 flags |= RT2573_TX_NEED_ACK;
1138
1139 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1140 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1141 *(uint16_t *)wh->i_dur = htole16(dur);
1142
1143 /* tell hardware to add timestamp for probe responses */
1144 if ((wh->i_fc[0] &
1145 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
1146 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
1147 flags |= RT2573_TX_TIMESTAMP;
1148 }
1149
1150 data->m = m0;
1151 data->ni = ni;
1152 data->rate = tp->mgmtrate;
1153
1154 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate);
1155
1156 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1157 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1158
1159 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1160 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1161
1162 return (0);
1163 }
1164
1165 static int
1166 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1167 const struct ieee80211_bpf_params *params)
1168 {
1169 struct ieee80211com *ic = ni->ni_ic;
1170 struct rum_tx_data *data;
1171 uint32_t flags;
1172 int rate, error;
1173
1174 RUM_LOCK_ASSERT(sc, MA_OWNED);
1175 KASSERT(params != NULL, ("no raw xmit params"));
1176
1177 rate = params->ibp_rate0;
1178 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1179 m_freem(m0);
1180 return EINVAL;
1181 }
1182 flags = 0;
1183 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1184 flags |= RT2573_TX_NEED_ACK;
1185 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1186 error = rum_sendprot(sc, m0, ni,
1187 params->ibp_flags & IEEE80211_BPF_RTS ?
1188 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1189 rate);
1190 if (error || sc->tx_nfree == 0) {
1191 m_freem(m0);
1192 return ENOBUFS;
1193 }
1194 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1195 }
1196
1197 data = STAILQ_FIRST(&sc->tx_free);
1198 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1199 sc->tx_nfree--;
1200
1201 data->m = m0;
1202 data->ni = ni;
1203 data->rate = rate;
1204
1205 /* XXX need to setup descriptor ourself */
1206 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate);
1207
1208 DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1209 m0->m_pkthdr.len, rate);
1210
1211 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1212 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1213
1214 return 0;
1215 }
1216
1217 static int
1218 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1219 {
1220 struct ieee80211vap *vap = ni->ni_vap;
1221 struct ifnet *ifp = sc->sc_ifp;
1222 struct ieee80211com *ic = ifp->if_l2com;
1223 struct rum_tx_data *data;
1224 struct ieee80211_frame *wh;
1225 const struct ieee80211_txparam *tp;
1226 struct ieee80211_key *k;
1227 uint32_t flags = 0;
1228 uint16_t dur;
1229 int error, rate;
1230
1231 RUM_LOCK_ASSERT(sc, MA_OWNED);
1232
1233 wh = mtod(m0, struct ieee80211_frame *);
1234
1235 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1236 if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1237 rate = tp->mcastrate;
1238 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1239 rate = tp->ucastrate;
1240 else
1241 rate = ni->ni_txrate;
1242
1243 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1244 k = ieee80211_crypto_encap(ni, m0);
1245 if (k == NULL) {
1246 m_freem(m0);
1247 return ENOBUFS;
1248 }
1249
1250 /* packet header may have moved, reset our local pointer */
1251 wh = mtod(m0, struct ieee80211_frame *);
1252 }
1253
1254 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1255 int prot = IEEE80211_PROT_NONE;
1256 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1257 prot = IEEE80211_PROT_RTSCTS;
1258 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1259 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1260 prot = ic->ic_protmode;
1261 if (prot != IEEE80211_PROT_NONE) {
1262 error = rum_sendprot(sc, m0, ni, prot, rate);
1263 if (error || sc->tx_nfree == 0) {
1264 m_freem(m0);
1265 return ENOBUFS;
1266 }
1267 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1268 }
1269 }
1270
1271 data = STAILQ_FIRST(&sc->tx_free);
1272 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1273 sc->tx_nfree--;
1274
1275 data->m = m0;
1276 data->ni = ni;
1277 data->rate = rate;
1278
1279 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1280 flags |= RT2573_TX_NEED_ACK;
1281 flags |= RT2573_TX_MORE_FRAG;
1282
1283 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1284 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1285 *(uint16_t *)wh->i_dur = htole16(dur);
1286 }
1287
1288 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate);
1289
1290 DPRINTFN(10, "sending frame len=%d rate=%d\n",
1291 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1292
1293 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1294 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1295
1296 return 0;
1297 }
1298
1299 static void
1300 rum_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
1301 {
1302 struct rum_softc *sc = ifp->if_softc;
1303 struct ieee80211_node *ni;
1304 struct mbuf *m;
1305
1306 RUM_LOCK(sc);
1307 if ((ifp->if_flags & IFF_RUNNING) == 0) {
1308 RUM_UNLOCK(sc);
1309 return;
1310 }
1311 for (;;) {
1312 m = ifq_dequeue(&ifp->if_snd);
1313 if (m == NULL)
1314 break;
1315 if (sc->tx_nfree < RUM_TX_MINFREE) {
1316 ifq_prepend(&ifp->if_snd, m);
1317 ifq_set_oactive(&ifp->if_snd);
1318 break;
1319 }
1320 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1321 if (rum_tx_data(sc, m, ni) != 0) {
1322 ieee80211_free_node(ni);
1323 IFNET_STAT_INC(ifp, oerrors, 1);
1324 break;
1325 }
1326 }
1327 RUM_UNLOCK(sc);
1328 }
1329
1330 static int
1331 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
1332 {
1333 struct rum_softc *sc = ifp->if_softc;
1334 struct ieee80211com *ic = ifp->if_l2com;
1335 struct ifreq *ifr = (struct ifreq *) data;
1336 int error;
1337 int startall = 0;
1338
1339 RUM_LOCK(sc);
1340 error = sc->sc_detached ? ENXIO : 0;
1341 RUM_UNLOCK(sc);
1342 if (error)
1343 return (error);
1344
1345 switch (cmd) {
1346 case SIOCSIFFLAGS:
1347 RUM_LOCK(sc);
1348 if (ifp->if_flags & IFF_UP) {
1349 if ((ifp->if_flags & IFF_RUNNING) == 0) {
1350 rum_init_locked(sc);
1351 startall = 1;
1352 } else
1353 rum_setpromisc(sc);
1354 } else {
1355 if (ifp->if_flags & IFF_RUNNING)
1356 rum_stop(sc);
1357 }
1358 RUM_UNLOCK(sc);
1359 if (startall)
1360 ieee80211_start_all(ic);
1361 break;
1362 case SIOCGIFMEDIA:
1363 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1364 break;
1365 case SIOCGIFADDR:
1366 error = ether_ioctl(ifp, cmd, data);
1367 break;
1368 default:
1369 error = EINVAL;
1370 break;
1371 }
1372 return error;
1373 }
1374
1375 static void
1376 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1377 {
1378 struct usb_device_request req;
1379 usb_error_t error;
1380
1381 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1382 req.bRequest = RT2573_READ_EEPROM;
1383 USETW(req.wValue, 0);
1384 USETW(req.wIndex, addr);
1385 USETW(req.wLength, len);
1386
1387 error = rum_do_request(sc, &req, buf);
1388 if (error != 0) {
1389 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1390 usbd_errstr(error));
1391 }
1392 }
1393
1394 static uint32_t
1395 rum_read(struct rum_softc *sc, uint16_t reg)
1396 {
1397 uint32_t val;
1398
1399 rum_read_multi(sc, reg, &val, sizeof val);
1400
1401 return le32toh(val);
1402 }
1403
1404 static void
1405 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1406 {
1407 struct usb_device_request req;
1408 usb_error_t error;
1409
1410 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1411 req.bRequest = RT2573_READ_MULTI_MAC;
1412 USETW(req.wValue, 0);
1413 USETW(req.wIndex, reg);
1414 USETW(req.wLength, len);
1415
1416 error = rum_do_request(sc, &req, buf);
1417 if (error != 0) {
1418 device_printf(sc->sc_dev,
1419 "could not multi read MAC register: %s\n",
1420 usbd_errstr(error));
1421 }
1422 }
1423
1424 static usb_error_t
1425 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1426 {
1427 uint32_t tmp = htole32(val);
1428
1429 return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1430 }
1431
1432 static usb_error_t
1433 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1434 {
1435 struct usb_device_request req;
1436 usb_error_t error;
1437 size_t offset;
1438
1439 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1440 req.bRequest = RT2573_WRITE_MULTI_MAC;
1441 USETW(req.wValue, 0);
1442
1443 /* write at most 64 bytes at a time */
1444 for (offset = 0; offset < len; offset += 64) {
1445 USETW(req.wIndex, reg + offset);
1446 USETW(req.wLength, MIN(len - offset, 64));
1447
1448 error = rum_do_request(sc, &req, (char *)buf + offset);
1449 if (error != 0) {
1450 device_printf(sc->sc_dev,
1451 "could not multi write MAC register: %s\n",
1452 usbd_errstr(error));
1453 return (error);
1454 }
1455 }
1456
1457 return (USB_ERR_NORMAL_COMPLETION);
1458 }
1459
1460 static void
1461 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1462 {
1463 uint32_t tmp;
1464 int ntries;
1465
1466 DPRINTFN(2, "reg=0x%08x\n", reg);
1467
1468 for (ntries = 0; ntries < 100; ntries++) {
1469 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1470 break;
1471 if (rum_pause(sc, hz / 100))
1472 break;
1473 }
1474 if (ntries == 100) {
1475 device_printf(sc->sc_dev, "could not write to BBP\n");
1476 return;
1477 }
1478
1479 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1480 rum_write(sc, RT2573_PHY_CSR3, tmp);
1481 }
1482
1483 static uint8_t
1484 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1485 {
1486 uint32_t val;
1487 int ntries;
1488
1489 DPRINTFN(2, "reg=0x%08x\n", reg);
1490
1491 for (ntries = 0; ntries < 100; ntries++) {
1492 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1493 break;
1494 if (rum_pause(sc, hz / 100))
1495 break;
1496 }
1497 if (ntries == 100) {
1498 device_printf(sc->sc_dev, "could not read BBP\n");
1499 return 0;
1500 }
1501
1502 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1503 rum_write(sc, RT2573_PHY_CSR3, val);
1504
1505 for (ntries = 0; ntries < 100; ntries++) {
1506 val = rum_read(sc, RT2573_PHY_CSR3);
1507 if (!(val & RT2573_BBP_BUSY))
1508 return val & 0xff;
1509 if (rum_pause(sc, hz / 100))
1510 break;
1511 }
1512
1513 device_printf(sc->sc_dev, "could not read BBP\n");
1514 return 0;
1515 }
1516
1517 static void
1518 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1519 {
1520 uint32_t tmp;
1521 int ntries;
1522
1523 for (ntries = 0; ntries < 100; ntries++) {
1524 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1525 break;
1526 if (rum_pause(sc, hz / 100))
1527 break;
1528 }
1529 if (ntries == 100) {
1530 device_printf(sc->sc_dev, "could not write to RF\n");
1531 return;
1532 }
1533
1534 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1535 (reg & 3);
1536 rum_write(sc, RT2573_PHY_CSR4, tmp);
1537
1538 /* remember last written value in sc */
1539 sc->rf_regs[reg] = val;
1540
1541 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1542 }
1543
1544 static void
1545 rum_select_antenna(struct rum_softc *sc)
1546 {
1547 uint8_t bbp4, bbp77;
1548 uint32_t tmp;
1549
1550 bbp4 = rum_bbp_read(sc, 4);
1551 bbp77 = rum_bbp_read(sc, 77);
1552
1553 /* TBD */
1554
1555 /* make sure Rx is disabled before switching antenna */
1556 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1557 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
1558
1559 rum_bbp_write(sc, 4, bbp4);
1560 rum_bbp_write(sc, 77, bbp77);
1561
1562 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1563 }
1564
1565 /*
1566 * Enable multi-rate retries for frames sent at OFDM rates.
1567 * In 802.11b/g mode, allow fallback to CCK rates.
1568 */
1569 static void
1570 rum_enable_mrr(struct rum_softc *sc)
1571 {
1572 struct ifnet *ifp = sc->sc_ifp;
1573 struct ieee80211com *ic = ifp->if_l2com;
1574 uint32_t tmp;
1575
1576 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1577
1578 tmp &= ~RT2573_MRR_CCK_FALLBACK;
1579 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan))
1580 tmp |= RT2573_MRR_CCK_FALLBACK;
1581 tmp |= RT2573_MRR_ENABLED;
1582
1583 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1584 }
1585
1586 static void
1587 rum_set_txpreamble(struct rum_softc *sc)
1588 {
1589 struct ifnet *ifp = sc->sc_ifp;
1590 struct ieee80211com *ic = ifp->if_l2com;
1591 uint32_t tmp;
1592
1593 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1594
1595 tmp &= ~RT2573_SHORT_PREAMBLE;
1596 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1597 tmp |= RT2573_SHORT_PREAMBLE;
1598
1599 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1600 }
1601
1602 static void
1603 rum_set_basicrates(struct rum_softc *sc)
1604 {
1605 struct ifnet *ifp = sc->sc_ifp;
1606 struct ieee80211com *ic = ifp->if_l2com;
1607
1608 /* update basic rate set */
1609 if (ic->ic_curmode == IEEE80211_MODE_11B) {
1610 /* 11b basic rates: 1, 2Mbps */
1611 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
1612 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
1613 /* 11a basic rates: 6, 12, 24Mbps */
1614 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
1615 } else {
1616 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
1617 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
1618 }
1619 }
1620
1621 /*
1622 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
1623 * driver.
1624 */
1625 static void
1626 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
1627 {
1628 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
1629 uint32_t tmp;
1630
1631 /* update all BBP registers that depend on the band */
1632 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
1633 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
1634 if (IEEE80211_IS_CHAN_5GHZ(c)) {
1635 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
1636 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
1637 }
1638 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1639 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1640 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
1641 }
1642
1643 sc->bbp17 = bbp17;
1644 rum_bbp_write(sc, 17, bbp17);
1645 rum_bbp_write(sc, 96, bbp96);
1646 rum_bbp_write(sc, 104, bbp104);
1647
1648 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1649 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1650 rum_bbp_write(sc, 75, 0x80);
1651 rum_bbp_write(sc, 86, 0x80);
1652 rum_bbp_write(sc, 88, 0x80);
1653 }
1654
1655 rum_bbp_write(sc, 35, bbp35);
1656 rum_bbp_write(sc, 97, bbp97);
1657 rum_bbp_write(sc, 98, bbp98);
1658
1659 tmp = rum_read(sc, RT2573_PHY_CSR0);
1660 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ);
1661 if (IEEE80211_IS_CHAN_2GHZ(c))
1662 tmp |= RT2573_PA_PE_2GHZ;
1663 else
1664 tmp |= RT2573_PA_PE_5GHZ;
1665 rum_write(sc, RT2573_PHY_CSR0, tmp);
1666 }
1667
1668 static void
1669 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
1670 {
1671 struct ifnet *ifp = sc->sc_ifp;
1672 struct ieee80211com *ic = ifp->if_l2com;
1673 const struct rfprog *rfprog;
1674 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
1675 int8_t power;
1676 int i, chan;
1677
1678 chan = ieee80211_chan2ieee(ic, c);
1679 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
1680 return;
1681
1682 /* select the appropriate RF settings based on what EEPROM says */
1683 rfprog = (sc->rf_rev == RT2573_RF_5225 ||
1684 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
1685
1686 /* find the settings for this channel (we know it exists) */
1687 for (i = 0; rfprog[i].chan != chan; i++);
1688
1689 power = sc->txpow[i];
1690 if (power < 0) {
1691 bbp94 += power;
1692 power = 0;
1693 } else if (power > 31) {
1694 bbp94 += power - 31;
1695 power = 31;
1696 }
1697
1698 /*
1699 * If we are switching from the 2GHz band to the 5GHz band or
1700 * vice-versa, BBP registers need to be reprogrammed.
1701 */
1702 if (c->ic_flags != ic->ic_curchan->ic_flags) {
1703 rum_select_band(sc, c);
1704 rum_select_antenna(sc);
1705 }
1706 ic->ic_curchan = c;
1707
1708 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1709 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1710 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1711 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1712
1713 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1714 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1715 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
1716 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1717
1718 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1719 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1720 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1721 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1722
1723 rum_pause(sc, hz / 100);
1724
1725 /* enable smart mode for MIMO-capable RFs */
1726 bbp3 = rum_bbp_read(sc, 3);
1727
1728 bbp3 &= ~RT2573_SMART_MODE;
1729 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
1730 bbp3 |= RT2573_SMART_MODE;
1731
1732 rum_bbp_write(sc, 3, bbp3);
1733
1734 if (bbp94 != RT2573_BBPR94_DEFAULT)
1735 rum_bbp_write(sc, 94, bbp94);
1736
1737 /* give the chip some extra time to do the switchover */
1738 rum_pause(sc, hz / 100);
1739 }
1740
1741 /*
1742 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
1743 * and HostAP operating modes.
1744 */
1745 static void
1746 rum_enable_tsf_sync(struct rum_softc *sc)
1747 {
1748 struct ifnet *ifp = sc->sc_ifp;
1749 struct ieee80211com *ic = ifp->if_l2com;
1750 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1751 uint32_t tmp;
1752
1753 if (vap->iv_opmode != IEEE80211_M_STA) {
1754 /*
1755 * Change default 16ms TBTT adjustment to 8ms.
1756 * Must be done before enabling beacon generation.
1757 */
1758 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8);
1759 }
1760
1761 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
1762
1763 /* set beacon interval (in 1/16ms unit) */
1764 tmp |= vap->iv_bss->ni_intval * 16;
1765
1766 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT;
1767 if (vap->iv_opmode == IEEE80211_M_STA)
1768 tmp |= RT2573_TSF_MODE(1);
1769 else
1770 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON;
1771
1772 rum_write(sc, RT2573_TXRX_CSR9, tmp);
1773 }
1774
1775 static void
1776 rum_enable_tsf(struct rum_softc *sc)
1777 {
1778 rum_write(sc, RT2573_TXRX_CSR9,
1779 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) |
1780 RT2573_TSF_TICKING | RT2573_TSF_MODE(2));
1781 }
1782
1783 static void
1784 rum_update_slot(struct ifnet *ifp)
1785 {
1786 struct rum_softc *sc = ifp->if_softc;
1787 struct ieee80211com *ic = ifp->if_l2com;
1788 uint8_t slottime;
1789 uint32_t tmp;
1790
1791 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
1792
1793 tmp = rum_read(sc, RT2573_MAC_CSR9);
1794 tmp = (tmp & ~0xff) | slottime;
1795 rum_write(sc, RT2573_MAC_CSR9, tmp);
1796
1797 DPRINTF("setting slot time to %uus\n", slottime);
1798 }
1799
1800 static void
1801 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
1802 {
1803 uint32_t tmp;
1804
1805 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
1806 rum_write(sc, RT2573_MAC_CSR4, tmp);
1807
1808 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16;
1809 rum_write(sc, RT2573_MAC_CSR5, tmp);
1810 }
1811
1812 static void
1813 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
1814 {
1815 uint32_t tmp;
1816
1817 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
1818 rum_write(sc, RT2573_MAC_CSR2, tmp);
1819
1820 tmp = addr[4] | addr[5] << 8 | 0xff << 16;
1821 rum_write(sc, RT2573_MAC_CSR3, tmp);
1822 }
1823
1824 static void
1825 rum_setpromisc(struct rum_softc *sc)
1826 {
1827 struct ifnet *ifp = sc->sc_ifp;
1828 uint32_t tmp;
1829
1830 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1831
1832 tmp &= ~RT2573_DROP_NOT_TO_ME;
1833 if (!(ifp->if_flags & IFF_PROMISC))
1834 tmp |= RT2573_DROP_NOT_TO_ME;
1835
1836 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1837
1838 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
1839 "entering" : "leaving");
1840 }
1841
1842 static void
1843 rum_update_promisc(struct ifnet *ifp)
1844 {
1845 struct rum_softc *sc = ifp->if_softc;
1846
1847 if ((ifp->if_flags & IFF_RUNNING) == 0)
1848 return;
1849
1850 RUM_LOCK(sc);
1851 rum_setpromisc(sc);
1852 RUM_UNLOCK(sc);
1853 }
1854
1855 static void
1856 rum_update_mcast(struct ifnet *ifp)
1857 {
1858 static int warning_printed;
1859
1860 if (warning_printed == 0) {
1861 if_printf(ifp, "need to implement %s\n", __func__);
1862 warning_printed = 1;
1863 }
1864 }
1865
1866 static const char *
1867 rum_get_rf(int rev)
1868 {
1869 switch (rev) {
1870 case RT2573_RF_2527: return "RT2527 (MIMO XR)";
1871 case RT2573_RF_2528: return "RT2528";
1872 case RT2573_RF_5225: return "RT5225 (MIMO XR)";
1873 case RT2573_RF_5226: return "RT5226";
1874 default: return "unknown";
1875 }
1876 }
1877
1878 static void
1879 rum_read_eeprom(struct rum_softc *sc)
1880 {
1881 uint16_t val;
1882 #ifdef RUM_DEBUG
1883 int i;
1884 #endif
1885
1886 /* read MAC address */
1887 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6);
1888
1889 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
1890 val = le16toh(val);
1891 sc->rf_rev = (val >> 11) & 0x1f;
1892 sc->hw_radio = (val >> 10) & 0x1;
1893 sc->rx_ant = (val >> 4) & 0x3;
1894 sc->tx_ant = (val >> 2) & 0x3;
1895 sc->nb_ant = val & 0x3;
1896
1897 DPRINTF("RF revision=%d\n", sc->rf_rev);
1898
1899 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
1900 val = le16toh(val);
1901 sc->ext_5ghz_lna = (val >> 6) & 0x1;
1902 sc->ext_2ghz_lna = (val >> 4) & 0x1;
1903
1904 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
1905 sc->ext_2ghz_lna, sc->ext_5ghz_lna);
1906
1907 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
1908 val = le16toh(val);
1909 if ((val & 0xff) != 0xff)
1910 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
1911
1912 /* Only [-10, 10] is valid */
1913 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
1914 sc->rssi_2ghz_corr = 0;
1915
1916 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
1917 val = le16toh(val);
1918 if ((val & 0xff) != 0xff)
1919 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
1920
1921 /* Only [-10, 10] is valid */
1922 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
1923 sc->rssi_5ghz_corr = 0;
1924
1925 if (sc->ext_2ghz_lna)
1926 sc->rssi_2ghz_corr -= 14;
1927 if (sc->ext_5ghz_lna)
1928 sc->rssi_5ghz_corr -= 14;
1929
1930 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
1931 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
1932
1933 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
1934 val = le16toh(val);
1935 if ((val & 0xff) != 0xff)
1936 sc->rffreq = val & 0xff;
1937
1938 DPRINTF("RF freq=%d\n", sc->rffreq);
1939
1940 /* read Tx power for all a/b/g channels */
1941 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
1942 /* XXX default Tx power for 802.11a channels */
1943 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
1944 #ifdef RUM_DEBUG
1945 for (i = 0; i < 14; i++)
1946 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]);
1947 #endif
1948
1949 /* read default values for BBP registers */
1950 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
1951 #ifdef RUM_DEBUG
1952 for (i = 0; i < 14; i++) {
1953 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1954 continue;
1955 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
1956 sc->bbp_prom[i].val);
1957 }
1958 #endif
1959 }
1960
1961 static int
1962 rum_bbp_init(struct rum_softc *sc)
1963 {
1964 int i, ntries;
1965
1966 /* wait for BBP to be ready */
1967 for (ntries = 0; ntries < 100; ntries++) {
1968 const uint8_t val = rum_bbp_read(sc, 0);
1969 if (val != 0 && val != 0xff)
1970 break;
1971 if (rum_pause(sc, hz / 100))
1972 break;
1973 }
1974 if (ntries == 100) {
1975 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
1976 return EIO;
1977 }
1978
1979 /* initialize BBP registers to default values */
1980 for (i = 0; i < N(rum_def_bbp); i++)
1981 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
1982
1983 /* write vendor-specific BBP values (from EEPROM) */
1984 for (i = 0; i < 16; i++) {
1985 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1986 continue;
1987 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
1988 }
1989
1990 return 0;
1991 }
1992
1993 static void
1994 rum_init_locked(struct rum_softc *sc)
1995 {
1996 struct ifnet *ifp = sc->sc_ifp;
1997 struct ieee80211com *ic = ifp->if_l2com;
1998 uint32_t tmp;
1999 usb_error_t error;
2000 int i, ntries;
2001
2002 RUM_LOCK_ASSERT(sc, MA_OWNED);
2003
2004 rum_stop(sc);
2005
2006 /* initialize MAC registers to default values */
2007 for (i = 0; i < N(rum_def_mac); i++)
2008 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
2009
2010 /* set host ready */
2011 rum_write(sc, RT2573_MAC_CSR1, 3);
2012 rum_write(sc, RT2573_MAC_CSR1, 0);
2013
2014 /* wait for BBP/RF to wakeup */
2015 for (ntries = 0; ntries < 100; ntries++) {
2016 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
2017 break;
2018 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
2019 if (rum_pause(sc, hz / 100))
2020 break;
2021 }
2022 if (ntries == 100) {
2023 device_printf(sc->sc_dev,
2024 "timeout waiting for BBP/RF to wakeup\n");
2025 goto fail;
2026 }
2027
2028 if ((error = rum_bbp_init(sc)) != 0)
2029 goto fail;
2030
2031 /* select default channel */
2032 rum_select_band(sc, ic->ic_curchan);
2033 rum_select_antenna(sc);
2034 rum_set_chan(sc, ic->ic_curchan);
2035
2036 /* clear STA registers */
2037 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2038
2039 rum_set_macaddr(sc, IF_LLADDR(ifp));
2040
2041 /* initialize ASIC */
2042 rum_write(sc, RT2573_MAC_CSR1, 4);
2043
2044 /*
2045 * Allocate Tx and Rx xfer queues.
2046 */
2047 rum_setup_tx_list(sc);
2048
2049 /* update Rx filter */
2050 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2051
2052 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2053 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2054 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2055 RT2573_DROP_ACKCTS;
2056 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2057 tmp |= RT2573_DROP_TODS;
2058 if (!(ifp->if_flags & IFF_PROMISC))
2059 tmp |= RT2573_DROP_NOT_TO_ME;
2060 }
2061 rum_write(sc, RT2573_TXRX_CSR0, tmp);
2062
2063 ifq_clr_oactive(&ifp->if_snd);
2064 ifp->if_flags |= IFF_RUNNING;
2065 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2066 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2067 return;
2068
2069 fail: rum_stop(sc);
2070 #undef N
2071 }
2072
2073 static void
2074 rum_init(void *priv)
2075 {
2076 struct rum_softc *sc = priv;
2077 struct ifnet *ifp = sc->sc_ifp;
2078 struct ieee80211com *ic = ifp->if_l2com;
2079
2080 RUM_LOCK(sc);
2081 rum_init_locked(sc);
2082 RUM_UNLOCK(sc);
2083
2084 if (ifp->if_flags & IFF_RUNNING)
2085 ieee80211_start_all(ic); /* start all vap's */
2086 }
2087
2088 static void
2089 rum_stop(struct rum_softc *sc)
2090 {
2091 struct ifnet *ifp = sc->sc_ifp;
2092 uint32_t tmp;
2093
2094 RUM_LOCK_ASSERT(sc, MA_OWNED);
2095
2096 ifp->if_flags &= ~IFF_RUNNING;
2097 ifq_clr_oactive(&ifp->if_snd);
2098
2099 RUM_UNLOCK(sc);
2100
2101 /*
2102 * Drain the USB transfers, if not already drained:
2103 */
2104 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2105 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2106
2107 RUM_LOCK(sc);
2108
2109 rum_unsetup_tx_list(sc);
2110
2111 /* disable Rx */
2112 tmp = rum_read(sc, RT2573_TXRX_CSR0);
2113 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2114
2115 /* reset ASIC */
2116 rum_write(sc, RT2573_MAC_CSR1, 3);
2117 rum_write(sc, RT2573_MAC_CSR1, 0);
2118 }
2119
2120 static void
2121 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2122 {
2123 struct usb_device_request req;
2124 uint16_t reg = RT2573_MCU_CODE_BASE;
2125 usb_error_t err;
2126
2127 /* copy firmware image into NIC */
2128 for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2129 err = rum_write(sc, reg, UGETDW(ucode));
2130 if (err) {
2131 /* firmware already loaded ? */
2132 device_printf(sc->sc_dev, "Firmware load "
2133 "failure! (ignored)\n");
2134 break;
2135 }
2136 }
2137
2138 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
2139 req.bRequest = RT2573_MCU_CNTL;
2140 USETW(req.wValue, RT2573_MCU_RUN);
2141 USETW(req.wIndex, 0);
2142 USETW(req.wLength, 0);
2143
2144 err = rum_do_request(sc, &req, NULL);
2145 if (err != 0) {
2146 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2147 usbd_errstr(err));
2148 }
2149
2150 /* give the chip some time to boot */
2151 rum_pause(sc, hz / 8);
2152 }
2153
2154 static void
2155 rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2156 {
2157 struct ieee80211com *ic = vap->iv_ic;
2158 const struct ieee80211_txparam *tp;
2159 struct rum_tx_desc desc;
2160 struct mbuf *m0;
2161
2162 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC)
2163 return;
2164 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC)
2165 return;
2166
2167 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo);
2168 if (m0 == NULL)
2169 return;
2170
2171 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2172 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ,
2173 m0->m_pkthdr.len, tp->mgmtrate);
2174
2175 /* copy the first 24 bytes of Tx descriptor into NIC memory */
2176 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24);
2177
2178 /* copy beacon header and payload into NIC memory */
2179 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *),
2180 m0->m_pkthdr.len);
2181
2182 m_freem(m0);
2183 }
2184
2185 static int
2186 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2187 const struct ieee80211_bpf_params *params)
2188 {
2189 struct ifnet *ifp = ni->ni_ic->ic_ifp;
2190 struct rum_softc *sc = ifp->if_softc;
2191
2192 RUM_LOCK(sc);
2193 /* prevent management frames from being sent if we're not ready */
2194 if (!(ifp->if_flags & IFF_RUNNING)) {
2195 RUM_UNLOCK(sc);
2196 m_freem(m);
2197 ieee80211_free_node(ni);
2198 return ENETDOWN;
2199 }
2200 if (sc->tx_nfree < RUM_TX_MINFREE) {
2201 ifq_set_oactive(&ifp->if_snd);
2202 RUM_UNLOCK(sc);
2203 m_freem(m);
2204 ieee80211_free_node(ni);
2205 return EIO;
2206 }
2207
2208 IFNET_STAT_INC(ifp, opackets, 1);
2209
2210 if (params == NULL) {
2211 /*
2212 * Legacy path; interpret frame contents to decide
2213 * precisely how to send the frame.
2214 */
2215 if (rum_tx_mgt(sc, m, ni) != 0)
2216 goto bad;
2217 } else {
2218 /*
2219 * Caller supplied explicit parameters to use in
2220 * sending the frame.
2221 */
2222 if (rum_tx_raw(sc, m, ni, params) != 0)
2223 goto bad;
2224 }
2225 RUM_UNLOCK(sc);
2226
2227 return 0;
2228 bad:
2229 IFNET_STAT_INC(ifp, oerrors, 1);
2230 RUM_UNLOCK(sc);
2231 ieee80211_free_node(ni);
2232 return EIO;
2233 }
2234
2235 static void
2236 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
2237 {
2238 struct ieee80211vap *vap = ni->ni_vap;
2239 struct rum_vap *rvp = RUM_VAP(vap);
2240
2241 /* clear statistic registers (STA_CSR0 to STA_CSR5) */
2242 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2243
2244 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
2245 }
2246
2247 static void
2248 rum_ratectl_timeout(void *arg)
2249 {
2250 struct rum_vap *rvp = arg;
2251 struct ieee80211vap *vap = &rvp->vap;
2252 struct ieee80211com *ic = vap->iv_ic;
2253
2254 ieee80211_runtask(ic, &rvp->ratectl_task);
2255 }
2256
2257 static void
2258 rum_ratectl_task(void *arg, int pending)
2259 {
2260 struct rum_vap *rvp = arg;
2261 struct ieee80211vap *vap = &rvp->vap;
2262 struct ieee80211com *ic = vap->iv_ic;
2263 struct ifnet *ifp = ic->ic_ifp;
2264 struct rum_softc *sc = ifp->if_softc;
2265 struct ieee80211_node *ni;
2266 int ok, fail;
2267 int sum, retrycnt;
2268
2269 RUM_LOCK(sc);
2270 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */
2271 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
2272
2273 ok = (le32toh(sc->sta[4]) & 0xffff) + /* TX no-retry ok count */
2274 (le32toh(sc->sta[4]) >> 16) + /* TX one-retry ok count */
2275 (le32toh(sc->sta[5]) & 0xffff); /* TX more-retry ok count */
2276 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */
2277 sum = ok+fail;
2278 retrycnt = (le32toh(sc->sta[4]) >> 16) +
2279 (le32toh(sc->sta[5]) & 0xffff) + fail;
2280
2281 ni = ieee80211_ref_node(vap->iv_bss);
2282 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt);
2283 (void) ieee80211_ratectl_rate(ni, NULL, 0);
2284 ieee80211_free_node(ni);
2285
2286 IFNET_STAT_INC(ifp, oerrors, fail); /* count TX retry-fail as Tx errors */
2287
2288 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
2289 RUM_UNLOCK(sc);
2290 }
2291
2292 static void
2293 rum_scan_start(struct ieee80211com *ic)
2294 {
2295 struct ifnet *ifp = ic->ic_ifp;
2296 struct rum_softc *sc = ifp->if_softc;
2297 uint32_t tmp;
2298
2299 RUM_LOCK(sc);
2300 /* abort TSF synchronization */
2301 tmp = rum_read(sc, RT2573_TXRX_CSR9);
2302 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
2303 rum_set_bssid(sc, ifp->if_broadcastaddr);
2304 RUM_UNLOCK(sc);
2305
2306 }
2307
2308 static void
2309 rum_scan_end(struct ieee80211com *ic)
2310 {
2311 struct rum_softc *sc = ic->ic_ifp->if_softc;
2312
2313 RUM_LOCK(sc);
2314 rum_enable_tsf_sync(sc);
2315 rum_set_bssid(sc, sc->sc_bssid);
2316 RUM_UNLOCK(sc);
2317
2318 }
2319
2320 static void
2321 rum_set_channel(struct ieee80211com *ic)
2322 {
2323 struct rum_softc *sc = ic->ic_ifp->if_softc;
2324
2325 RUM_LOCK(sc);
2326 rum_set_chan(sc, ic->ic_curchan);
2327 RUM_UNLOCK(sc);
2328 }
2329
2330 static int
2331 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
2332 {
2333 struct ifnet *ifp = sc->sc_ifp;
2334 struct ieee80211com *ic = ifp->if_l2com;
2335 int lna, agc, rssi;
2336
2337 lna = (raw >> 5) & 0x3;
2338 agc = raw & 0x1f;
2339
2340 if (lna == 0) {
2341 /*
2342 * No RSSI mapping
2343 *
2344 * NB: Since RSSI is relative to noise floor, -1 is
2345 * adequate for caller to know error happened.
2346 */
2347 return -1;
2348 }
2349
2350 rssi = (2 * agc) - RT2573_NOISE_FLOOR;
2351
2352 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2353 rssi += sc->rssi_2ghz_corr;
2354
2355 if (lna == 1)
2356 rssi -= 64;
2357 else if (lna == 2)
2358 rssi -= 74;
2359 else if (lna == 3)
2360 rssi -= 90;
2361 } else {
2362 rssi += sc->rssi_5ghz_corr;
2363
2364 if (!sc->ext_5ghz_lna && lna != 1)
2365 rssi += 4;
2366
2367 if (lna == 1)
2368 rssi -= 64;
2369 else if (lna == 2)
2370 rssi -= 86;
2371 else if (lna == 3)
2372 rssi -= 100;
2373 }
2374 return rssi;
2375 }
2376
2377 static int
2378 rum_pause(struct rum_softc *sc, int timeout)
2379 {
2380 usb_pause_mtx(&sc->sc_lock, timeout);
2381 return (0);
2382 }
2383
2384 static device_method_t rum_methods[] = {
2385 /* Device interface */
2386 DEVMETHOD(device_probe, rum_match),
2387 DEVMETHOD(device_attach, rum_attach),
2388 DEVMETHOD(device_detach, rum_detach),
2389 DEVMETHOD_END
2390 };
2391
2392 static driver_t rum_driver = {
2393 .name = "rum",
2394 .methods = rum_methods,
2395 .size = sizeof(struct rum_softc),
2396 };
2397
2398 static devclass_t rum_devclass;
2399
2400 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, NULL);
2401 MODULE_DEPEND(rum, wlan, 1, 1, 1);
2402 MODULE_DEPEND(rum, usb, 1, 1, 1);
2403 MODULE_VERSION(rum, 1);
DragonFly BSD