1 /*
2 * Copyright 2017 Gary Mills
3 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
4 * Use is subject to license terms.
5 */
6
7 /*
8 * Copyright (c) 2007, 2008
9 * Damien Bergamini <damien.bergamini@free.fr>
10 *
11 * Permission to use, copy, modify, and distribute this software for any
12 * purpose with or without fee is hereby granted, provided that the above
13 * copyright notice and this permission notice appear in all copies.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
16 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
17 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
18 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
20 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
21 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 */
23
24 /*
25 * Ralink Technology RT2860 chipset driver
26 * http://www.ralinktech.com/
27 */
28
29 #include <sys/types.h>
30 #include <sys/byteorder.h>
31 #include <sys/conf.h>
32 #include <sys/cmn_err.h>
33 #include <sys/stat.h>
34 #include <sys/ddi.h>
35 #include <sys/sunddi.h>
36 #include <sys/strsubr.h>
37 #include <inet/common.h>
38 #include <sys/note.h>
39 #include <sys/stream.h>
40 #include <sys/strsun.h>
41 #include <sys/modctl.h>
42 #include <sys/devops.h>
43 #include <sys/mac_provider.h>
44 #include <sys/mac_wifi.h>
45 #include <sys/net80211.h>
46 #include <sys/net80211_proto.h>
47 #include <sys/varargs.h>
48 #include <sys/pci.h>
49 #include <sys/crypto/common.h>
50 #include <sys/crypto/api.h>
51 #include <inet/wifi_ioctl.h>
52
53 #include "rt2860_reg.h"
54 #include "rt2860_var.h"
55
56 #define RT2860_DBG_80211 (1 << 0)
57 #define RT2860_DBG_DMA (1 << 1)
58 #define RT2860_DBG_EEPROM (1 << 2)
59 #define RT2860_DBG_FW (1 << 3)
60 #define RT2860_DBG_HW (1 << 4)
61 #define RT2860_DBG_INTR (1 << 5)
62 #define RT2860_DBG_RX (1 << 6)
63 #define RT2860_DBG_SCAN (1 << 7)
64 #define RT2860_DBG_TX (1 << 8)
65 #define RT2860_DBG_RADIO (1 << 9)
66 #define RT2860_DBG_RESUME (1 << 10)
67 #define RT2860_DBG_MSG (1 << 11)
68
69 uint32_t rt2860_dbg_flags = 0x0;
70
71 #ifdef DEBUG
72 #define RWN_DEBUG \
73 rt2860_debug
74 #else
75 #define RWN_DEBUG
76 #endif
77
78 static void *rt2860_soft_state_p = NULL;
79 static uint8_t rt2860_fw_bin [] = {
80 #include "fw-rt2860/rt2860.ucode"
81 };
82
83 static const struct ieee80211_rateset rt2860_rateset_11b =
84 { 4, { 2, 4, 11, 22 } };
85
86 static const struct ieee80211_rateset rt2860_rateset_11g =
87 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } };
88
89 static const struct {
90 uint32_t reg;
91 uint32_t val;
92 } rt2860_def_mac[] = {
93 RT2860_DEF_MAC
94 };
95
96 static const struct {
97 uint8_t reg;
98 uint8_t val;
99 } rt2860_def_bbp[] = {
100 RT2860_DEF_BBP
101 };
102
103 static const struct rfprog {
104 uint8_t chan;
105 uint32_t r1, r2, r3, r4;
106 } rt2860_rf2850[] = {
107 RT2860_RF2850
108 };
109
110 /*
111 * PIO access attributes for registers
112 */
113 static ddi_device_acc_attr_t rwn_csr_accattr = {
114 DDI_DEVICE_ATTR_V0,
115 DDI_STRUCTURE_LE_ACC,
116 DDI_STRICTORDER_ACC
117 };
118
119 /*
120 * DMA access attributes for descriptors: NOT to be byte swapped.
121 */
122 static ddi_device_acc_attr_t rt2860_desc_accattr = {
123 DDI_DEVICE_ATTR_V0,
124 DDI_STRUCTURE_LE_ACC,
125 DDI_STRICTORDER_ACC
126 };
127
128 static ddi_device_acc_attr_t rt2860_buf_accattr = {
129 DDI_DEVICE_ATTR_V0,
130 DDI_NEVERSWAP_ACC,
131 DDI_STRICTORDER_ACC,
132 DDI_DEFAULT_ACC
133 };
134
135 /*
136 * Describes the chip's DMA engine
137 */
138 static ddi_dma_attr_t rt2860_dma_attr = {
139 DMA_ATTR_V0, /* dma_attr version */
140 0x0, /* dma_attr_addr_lo */
141 0xffffffffU, /* dma_attr_addr_hi */
142 0xffffffffU, /* dma_attr_count_max */
143 16, /* dma_attr_align */
144 0x00000fff, /* dma_attr_burstsizes */
145 1, /* dma_attr_minxfer */
146 0xffffffffU, /* dma_attr_maxxfer */
147 0xffffffffU, /* dma_attr_seg */
148 1, /* dma_attr_sgllen */
149 1, /* dma_attr_granular */
150 0 /* dma_attr_flags */
151 };
152
153 static uint16_t rt2860_eeprom_read(struct rt2860_softc *, uint8_t);
154 static int rt2860_read_eeprom(struct rt2860_softc *);
155 const char *rt2860_get_rf(uint8_t);
156 static int rt2860_alloc_dma_mem(dev_info_t *, ddi_dma_attr_t *, size_t,
157 ddi_device_acc_attr_t *, uint_t, uint_t, struct dma_area *);
158 static void rt2860_free_dma_mem(struct dma_area *);
159 static int rt2860_alloc_tx_ring(struct rt2860_softc *,
160 struct rt2860_tx_ring *);
161 static void rt2860_free_tx_ring(struct rt2860_softc *,
162 struct rt2860_tx_ring *);
163 static int rt2860_alloc_rx_ring(struct rt2860_softc *,
164 struct rt2860_rx_ring *);
165 static void rt2860_free_rx_ring(struct rt2860_softc *,
166 struct rt2860_rx_ring *);
167 static int rt2860_alloc_tx_pool(struct rt2860_softc *);
168 static void rt2860_free_tx_pool(struct rt2860_softc *);
169 static uint16_t rt2860_txtime(int, int, uint32_t);
170 static int rt2860_ack_rate(struct ieee80211com *, int);
171 static int rt2860_send(ieee80211com_t *, mblk_t *, uint8_t);
172 static uint8_t rt2860_maxrssi_chain(struct rt2860_softc *,
173 const struct rt2860_rxwi *);
174 static void rt2860_drain_stats_fifo(struct rt2860_softc *);
175 static void rt2860_tx_intr(struct rt2860_softc *, int);
176 static void rt2860_rx_intr(struct rt2860_softc *);
177 static uint_t rt2860_softintr(caddr_t);
178 static uint_t rt2860_intr(caddr_t);
179 static void rt2860_set_region_4(struct rt2860_softc *,
180 uint32_t, uint32_t, int);
181 static int rt2860_load_microcode(struct rt2860_softc *);
182 static void rt2860_set_macaddr(struct rt2860_softc *, const uint8_t *);
183 static int rt2860_bbp_init(struct rt2860_softc *);
184 static uint8_t rt2860_mcu_bbp_read(struct rt2860_softc *, uint8_t);
185 static void rt2860_mcu_bbp_write(struct rt2860_softc *, uint8_t, uint8_t);
186 static int rt2860_mcu_cmd(struct rt2860_softc *, uint8_t, uint16_t);
187 static void rt2860_rf_write(struct rt2860_softc *, uint8_t, uint32_t);
188 static void rt2860_select_chan_group(struct rt2860_softc *, int);
189 static void rt2860_set_chan(struct rt2860_softc *,
190 struct ieee80211_channel *);
191 static void rt2860_updateprot(struct ieee80211com *);
192 static void rt2860_set_leds(struct rt2860_softc *, uint16_t);
193 static void rt2860_next_scan(void *);
194 static void rt2860_iter_func(void *, struct ieee80211_node *);
195 static void rt2860_updateslot(struct rt2860_softc *);
196 static uint8_t rt2860_rate2mcs(uint8_t);
197 static void rt2860_enable_mrr(struct rt2860_softc *);
198 static void rt2860_set_txpreamble(struct rt2860_softc *);
199 static void rt2860_set_basicrates(struct rt2860_softc *);
200 static void rt2860_set_bssid(struct rt2860_softc *, const uint8_t *);
201 static void rt2860_amrr_node_init(const struct rt2860_amrr *,
202 struct rt2860_amrr_node *);
203 static void rt2860_amrr_choose(struct rt2860_amrr *,
204 struct ieee80211_node *, struct rt2860_amrr_node *);
205 static void rt2860_newassoc(struct ieee80211com *, struct ieee80211_node *,
206 int);
207 static void rt2860_enable_tsf_sync(struct rt2860_softc *);
208 static int rt2860_newstate(struct ieee80211com *,
209 enum ieee80211_state, int);
210 static int rt2860_init(struct rt2860_softc *);
211 static void rt2860_stop(struct rt2860_softc *);
212 static int rt2860_quiesce(dev_info_t *t);
213
214 /*
215 * device operations
216 */
217 static int rt2860_attach(dev_info_t *, ddi_attach_cmd_t);
218 static int rt2860_detach(dev_info_t *, ddi_detach_cmd_t);
219
220 /*
221 * Module Loading Data & Entry Points
222 */
223 DDI_DEFINE_STREAM_OPS(rwn_dev_ops, nulldev, nulldev, rt2860_attach,
224 rt2860_detach, nodev, NULL, D_MP, NULL, rt2860_quiesce);
225
226 static struct modldrv rwn_modldrv = {
227 &mod_driverops, /* Type of module. This one is a driver */
228 "Ralink RT2700/2800 driver v1.2", /* short description */
229 &rwn_dev_ops /* driver specific ops */
230 };
231
232 static struct modlinkage modlinkage = {
233 MODREV_1,
234 (void *)&rwn_modldrv,
235 NULL
236 };
237
238 static int rt2860_m_stat(void *, uint_t, uint64_t *);
239 static int rt2860_m_start(void *);
240 static void rt2860_m_stop(void *);
241 static int rt2860_m_promisc(void *, boolean_t);
242 static int rt2860_m_multicst(void *, boolean_t, const uint8_t *);
243 static int rt2860_m_unicst(void *, const uint8_t *);
244 static mblk_t *rt2860_m_tx(void *, mblk_t *);
245 static void rt2860_m_ioctl(void *, queue_t *, mblk_t *);
246 static int rt2860_m_setprop(void *arg, const char *pr_name,
247 mac_prop_id_t wldp_pr_num,
248 uint_t wldp_length, const void *wldp_buf);
249 static void rt2860_m_propinfo(void *arg, const char *pr_name,
250 mac_prop_id_t wldp_pr_num, mac_prop_info_handle_t prh);
251 static int rt2860_m_getprop(void *arg, const char *pr_name,
252 mac_prop_id_t wldp_pr_num, uint_t wldp_length,
253 void *wldp_buf);
254
255 static mac_callbacks_t rt2860_m_callbacks = {
256 MC_IOCTL | MC_SETPROP | MC_GETPROP | MC_PROPINFO,
257 rt2860_m_stat,
258 rt2860_m_start,
259 rt2860_m_stop,
260 rt2860_m_promisc,
261 rt2860_m_multicst,
262 rt2860_m_unicst,
263 rt2860_m_tx,
264 NULL,
265 rt2860_m_ioctl,
266 NULL,
267 NULL,
268 NULL,
269 rt2860_m_setprop,
270 rt2860_m_getprop,
271 rt2860_m_propinfo
272 };
273
274 #ifdef DEBUG
275 void
276 rt2860_debug(uint32_t dbg_flags, const int8_t *fmt, ...)
277 {
278 va_list args;
279
280 if (dbg_flags & rt2860_dbg_flags) {
281 va_start(args, fmt);
282 vcmn_err(CE_CONT, fmt, args);
283 va_end(args);
284 }
285 }
286 #endif
287
288 const char *
289 rt2860_get_rf(uint8_t rev)
290 {
291 switch (rev) {
292 case RT2860_RF_2820: return "RT2820";
293 case RT2860_RF_2850: return "RT2850";
294 case RT2860_RF_2720: return "RT2720";
295 case RT2860_RF_2750: return "RT2750";
296 default: return "unknown";
297 }
298 }
299
300 /*
301 * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46,
302 * 93C66 or 93C86).
303 */
304 static uint16_t
305 rt2860_eeprom_read(struct rt2860_softc *sc, uint8_t addr)
306 {
307 int n;
308 uint16_t val;
309 uint32_t tmp;
310
311 /* clock C once before the first command */
312 RT2860_EEPROM_CTL(sc, 0);
313
314 RT2860_EEPROM_CTL(sc, RT2860_S);
315 RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_C);
316 RT2860_EEPROM_CTL(sc, RT2860_S);
317
318 /* write start bit (1) */
319 RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_D);
320 RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_D | RT2860_C);
321
322 /* write READ opcode (10) */
323 RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_D);
324 RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_D | RT2860_C);
325 RT2860_EEPROM_CTL(sc, RT2860_S);
326 RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_C);
327
328 /* write address (A5-A0 or A7-A0) */
329 n = ((RT2860_READ(sc, RT2860_PCI_EECTRL) & 0x30) == 0) ? 5 : 7;
330 for (; n >= 0; n--) {
331 RT2860_EEPROM_CTL(sc, RT2860_S |
332 (((addr >> n) & 1) << RT2860_SHIFT_D));
333 RT2860_EEPROM_CTL(sc, RT2860_S |
334 (((addr >> n) & 1) << RT2860_SHIFT_D) | RT2860_C);
335 }
336
337 RT2860_EEPROM_CTL(sc, RT2860_S);
338
339 /* read data Q15-Q0 */
340 val = 0;
341 for (n = 15; n >= 0; n--) {
342 RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_C);
343 tmp = RT2860_READ(sc, RT2860_PCI_EECTRL);
344 val |= ((tmp & RT2860_Q) >> RT2860_SHIFT_Q) << n;
345 RT2860_EEPROM_CTL(sc, RT2860_S);
346 }
347
348 RT2860_EEPROM_CTL(sc, 0);
349
350 /* clear Chip Select and clock C */
351 RT2860_EEPROM_CTL(sc, RT2860_S);
352 RT2860_EEPROM_CTL(sc, 0);
353 RT2860_EEPROM_CTL(sc, RT2860_C);
354
355 return (val);
356 }
357
358 /*
359 * Add `delta' (signed) to each 4-bit sub-word of a 32-bit word.
360 * Used to adjust per-rate Tx power registers.
361 */
362 static inline uint32_t
363 b4inc(uint32_t b32, int8_t delta)
364 {
365 int8_t i, b4;
366
367 for (i = 0; i < 8; i++) {
368 b4 = b32 & 0xf;
369 b4 += delta;
370 if (b4 < 0)
371 b4 = 0;
372 else if (b4 > 0xf)
373 b4 = 0xf;
374 b32 = b32 >> 4 | b4 << 28;
375 }
376 return (b32);
377 }
378
379 static int
380 rt2860_read_eeprom(struct rt2860_softc *sc)
381 {
382 struct ieee80211com *ic = &sc->sc_ic;
383 int ridx, ant, i;
384 int8_t delta_2ghz, delta_5ghz;
385 uint16_t val;
386
387 /* read EEPROM version */
388 val = rt2860_eeprom_read(sc, RT2860_EEPROM_VERSION);
389 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
390 "EEPROM rev=%d, FAE=%d\n",
391 val & 0xff, val >> 8);
392
393 /* read MAC address */
394 val = rt2860_eeprom_read(sc, RT2860_EEPROM_MAC01);
395 ic->ic_macaddr[0] = val & 0xff;
396 ic->ic_macaddr[1] = val >> 8;
397 val = rt2860_eeprom_read(sc, RT2860_EEPROM_MAC23);
398 ic->ic_macaddr[2] = val & 0xff;
399 ic->ic_macaddr[3] = val >> 8;
400 val = rt2860_eeprom_read(sc, RT2860_EEPROM_MAC45);
401 ic->ic_macaddr[4] = val & 0xff;
402 ic->ic_macaddr[5] = val >> 8;
403 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
404 "MAC address is: %x:%x:%x:%x:%x:%x\n",
405 ic->ic_macaddr[0], ic->ic_macaddr[1],
406 ic->ic_macaddr[2], ic->ic_macaddr[3],
407 ic->ic_macaddr[4], ic->ic_macaddr[5]);
408
409 /* read country code */
410 val = rt2860_eeprom_read(sc, RT2860_EEPROM_COUNTRY);
411 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
412 "EEPROM region code=0x%04x\n", val);
413
414 /* read default BBP settings */
415 for (i = 0; i < 8; i++) {
416 val = rt2860_eeprom_read(sc, RT2860_EEPROM_BBP_BASE + i);
417 sc->bbp[i].val = val & 0xff;
418 sc->bbp[i].reg = val >> 8;
419 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
420 "BBP%d=0x%02x\n",
421 sc->bbp[i].reg, sc->bbp[i].val);
422 }
423
424 /* read RF frequency offset from EEPROM */
425 val = rt2860_eeprom_read(sc, RT2860_EEPROM_FREQ_LEDS);
426 sc->freq = ((val & 0xff) != 0xff) ? val & 0xff : 0;
427 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
428 "EEPROM freq offset %d\n", sc->freq & 0xff);
429
430 if ((sc->leds = val >> 8) != 0xff) {
431 /* read LEDs operating mode */
432 sc->led[0] = rt2860_eeprom_read(sc, RT2860_EEPROM_LED1);
433 sc->led[1] = rt2860_eeprom_read(sc, RT2860_EEPROM_LED2);
434 sc->led[2] = rt2860_eeprom_read(sc, RT2860_EEPROM_LED3);
435 } else {
436 /* broken EEPROM, use default settings */
437 sc->leds = 0x01;
438 sc->led[0] = 0x5555;
439 sc->led[1] = 0x2221;
440 sc->led[2] = 0xa9f8;
441 }
442 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
443 "EEPROM LED mode=0x%02x, LEDs=0x%04x/0x%04x/0x%04x\n",
444 sc->leds, sc->led[0], sc->led[1], sc->led[2]);
445
446 /* read RF information */
447 val = rt2860_eeprom_read(sc, RT2860_EEPROM_ANTENNA);
448 if (val == 0xffff) {
449 /* broken EEPROM, default to RF2820 1T2R */
450 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
451 "invalid EEPROM antenna info, using default\n");
452 sc->rf_rev = RT2860_RF_2820;
453 sc->ntxchains = 1;
454 sc->nrxchains = 2;
455 } else {
456 sc->rf_rev = (val >> 8) & 0xf;
457 sc->ntxchains = (val >> 4) & 0xf;
458 sc->nrxchains = val & 0xf;
459 }
460 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
461 "EEPROM RF rev=0x%02x chains=%dT%dR\n",
462 sc->rf_rev, sc->ntxchains, sc->nrxchains);
463
464 /* check if RF supports automatic Tx access gain control */
465 val = rt2860_eeprom_read(sc, RT2860_EEPROM_CONFIG);
466 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
467 "EEPROM CFG 0x%04x\n", val);
468 if ((val & 0xff) != 0xff)
469 sc->calib_2ghz = sc->calib_5ghz = 0; /* XXX (val >> 1) & 1 */;
470
471 if (sc->sc_flags & RT2860_ADVANCED_PS) {
472 /* read PCIe power save level */
473 val = rt2860_eeprom_read(sc, RT2860_EEPROM_PCIE_PSLEVEL);
474 if ((val & 0xff) != 0xff) {
475 sc->pslevel = val & 0x3;
476 val = rt2860_eeprom_read(sc, RT2860_EEPROM_REV);
477 if (val >> 8 != 0x92 || !(val & 0x80))
478 sc->pslevel = MIN(sc->pslevel, 1);
479 RWN_DEBUG(RT2860_DBG_EEPROM,
480 "rwn: rt2860_read_eeprom(): "
481 "EEPROM PCIe PS Level=%d\n",
482 sc->pslevel);
483 }
484 }
485 /* read power settings for 2GHz channels */
486 for (i = 0; i < 14; i += 2) {
487 val = rt2860_eeprom_read(sc,
488 RT2860_EEPROM_PWR2GHZ_BASE1 + i / 2);
489 sc->txpow1[i + 0] = (int8_t)(val & 0xff);
490 sc->txpow1[i + 1] = (int8_t)(val >> 8);
491
492 val = rt2860_eeprom_read(sc,
493 RT2860_EEPROM_PWR2GHZ_BASE2 + i / 2);
494 sc->txpow2[i + 0] = (int8_t)(val & 0xff);
495 sc->txpow2[i + 1] = (int8_t)(val >> 8);
496 }
497 /* fix broken Tx power entries */
498 for (i = 0; i < 14; i++) {
499 if (sc->txpow1[i] < 0 || sc->txpow1[i] > 31)
500 sc->txpow1[i] = 5;
501 if (sc->txpow2[i] < 0 || sc->txpow2[i] > 31)
502 sc->txpow2[i] = 5;
503 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
504 "chan %d: power1=%d, power2=%d\n",
505 rt2860_rf2850[i].chan, sc->txpow1[i], sc->txpow2[i]);
506 }
507 /* read power settings for 5GHz channels */
508 for (i = 0; i < 36; i += 2) {
509 val = rt2860_eeprom_read(sc,
510 RT2860_EEPROM_PWR5GHZ_BASE1 + i / 2);
511 sc->txpow1[i + 14] = (int8_t)(val & 0xff);
512 sc->txpow1[i + 15] = (int8_t)(val >> 8);
513
514 val = rt2860_eeprom_read(sc,
515 RT2860_EEPROM_PWR5GHZ_BASE2 + i / 2);
516 sc->txpow2[i + 14] = (int8_t)(val & 0xff);
517 sc->txpow2[i + 15] = (int8_t)(val >> 8);
518 }
519 /* fix broken Tx power entries */
520 for (i = 0; i < 35; i++) {
521 if (sc->txpow1[14 + i] < -7 || sc->txpow1[14 + i] > 15)
522 sc->txpow1[14 + i] = 5;
523 if (sc->txpow2[14 + i] < -7 || sc->txpow2[14 + i] > 15)
524 sc->txpow2[14 + i] = 5;
525 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
526 "chan %d: power1=%d, power2=%d\n",
527 rt2860_rf2850[14 + i].chan, sc->txpow1[14 + i],
528 sc->txpow2[14 + i]);
529 }
530
531 /* read Tx power compensation for each Tx rate */
532 val = rt2860_eeprom_read(sc, RT2860_EEPROM_DELTAPWR);
533 delta_2ghz = delta_5ghz = 0;
534 if ((val & 0xff) != 0xff && (val & 0x80)) {
535 delta_2ghz = val & 0xf;
536 if (!(val & 0x40)) /* negative number */
537 delta_2ghz = -delta_2ghz;
538 }
539 val >>= 8;
540 if ((val & 0xff) != 0xff && (val & 0x80)) {
541 delta_5ghz = val & 0xf;
542 if (!(val & 0x40)) /* negative number */
543 delta_5ghz = -delta_5ghz;
544 }
545 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
546 "power compensation=%d (2GHz), %d (5GHz) \n",
547 delta_2ghz, delta_5ghz);
548
549 for (ridx = 0; ridx < 5; ridx++) {
550 uint32_t reg;
551
552 val = rt2860_eeprom_read(sc, RT2860_EEPROM_RPWR + ridx);
553 reg = (uint32_t)val << 16;
554 val = rt2860_eeprom_read(sc, RT2860_EEPROM_RPWR + ridx + 1);
555 reg |= val;
556
557 sc->txpow20mhz[ridx] = reg;
558 sc->txpow40mhz_2ghz[ridx] = b4inc(reg, delta_2ghz);
559 sc->txpow40mhz_5ghz[ridx] = b4inc(reg, delta_5ghz);
560
561 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
562 "ridx %d: power 20MHz=0x%08x, 40MHz/2GHz=0x%08x, "
563 "40MHz/5GHz=0x%08x\n", ridx, sc->txpow20mhz[ridx],
564 sc->txpow40mhz_2ghz[ridx], sc->txpow40mhz_5ghz[ridx]);
565 }
566
567 /* read factory-calibrated samples for temperature compensation */
568 val = rt2860_eeprom_read(sc, RT2860_EEPROM_TSSI1_2GHZ);
569 sc->tssi_2ghz[0] = val & 0xff; /* [-4] */
570 sc->tssi_2ghz[1] = val >> 8; /* [-3] */
571 val = rt2860_eeprom_read(sc, RT2860_EEPROM_TSSI2_2GHZ);
572 sc->tssi_2ghz[2] = val & 0xff; /* [-2] */
573 sc->tssi_2ghz[3] = val >> 8; /* [-1] */
574 val = rt2860_eeprom_read(sc, RT2860_EEPROM_TSSI3_2GHZ);
575 sc->tssi_2ghz[4] = val & 0xff; /* [+0] */
576 sc->tssi_2ghz[5] = val >> 8; /* [+1] */
577 val = rt2860_eeprom_read(sc, RT2860_EEPROM_TSSI4_2GHZ);
578 sc->tssi_2ghz[6] = val & 0xff; /* [+2] */
579 sc->tssi_2ghz[7] = val >> 8; /* [+3] */
580 val = rt2860_eeprom_read(sc, RT2860_EEPROM_TSSI5_2GHZ);
581 sc->tssi_2ghz[8] = val & 0xff; /* [+4] */
582 sc->step_2ghz = val >> 8;
583 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
584 "TSSI 2GHz: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x "
585 "0x%02x 0x%02x step=%d\n", sc->tssi_2ghz[0], sc->tssi_2ghz[1],
586 sc->tssi_2ghz[2], sc->tssi_2ghz[3], sc->tssi_2ghz[4],
587 sc->tssi_2ghz[5], sc->tssi_2ghz[6], sc->tssi_2ghz[7],
588 sc->tssi_2ghz[8], sc->step_2ghz);
589 /* check that ref value is correct, otherwise disable calibration */
590 if (sc->tssi_2ghz[4] == 0xff)
591 sc->calib_2ghz = 0;
592
593 val = rt2860_eeprom_read(sc, RT2860_EEPROM_TSSI1_5GHZ);
594 sc->tssi_5ghz[0] = val & 0xff; /* [-4] */
595 sc->tssi_5ghz[1] = val >> 8; /* [-3] */
596 val = rt2860_eeprom_read(sc, RT2860_EEPROM_TSSI2_5GHZ);
597 sc->tssi_5ghz[2] = val & 0xff; /* [-2] */
598 sc->tssi_5ghz[3] = val >> 8; /* [-1] */
599 val = rt2860_eeprom_read(sc, RT2860_EEPROM_TSSI3_5GHZ);
600 sc->tssi_5ghz[4] = val & 0xff; /* [+0] */
601 sc->tssi_5ghz[5] = val >> 8; /* [+1] */
602 val = rt2860_eeprom_read(sc, RT2860_EEPROM_TSSI4_5GHZ);
603 sc->tssi_5ghz[6] = val & 0xff; /* [+2] */
604 sc->tssi_5ghz[7] = val >> 8; /* [+3] */
605 val = rt2860_eeprom_read(sc, RT2860_EEPROM_TSSI5_5GHZ);
606 sc->tssi_5ghz[8] = val & 0xff; /* [+4] */
607 sc->step_5ghz = val >> 8;
608 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
609 "TSSI 5GHz: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x "
610 "0x%02x 0x%02x step=%d\n", sc->tssi_5ghz[0], sc->tssi_5ghz[1],
611 sc->tssi_5ghz[2], sc->tssi_5ghz[3], sc->tssi_5ghz[4],
612 sc->tssi_5ghz[5], sc->tssi_5ghz[6], sc->tssi_5ghz[7],
613 sc->tssi_5ghz[8], sc->step_5ghz);
614 /* check that ref value is correct, otherwise disable calibration */
615 if (sc->tssi_5ghz[4] == 0xff)
616 sc->calib_5ghz = 0;
617
618 /* read RSSI offsets and LNA gains from EEPROM */
619 val = rt2860_eeprom_read(sc, RT2860_EEPROM_RSSI1_2GHZ);
620 sc->rssi_2ghz[0] = val & 0xff; /* Ant A */
621 sc->rssi_2ghz[1] = val >> 8; /* Ant B */
622 val = rt2860_eeprom_read(sc, RT2860_EEPROM_RSSI2_2GHZ);
623 sc->rssi_2ghz[2] = val & 0xff; /* Ant C */
624 sc->lna[2] = val >> 8; /* channel group 2 */
625
626 val = rt2860_eeprom_read(sc, RT2860_EEPROM_RSSI1_5GHZ);
627 sc->rssi_5ghz[0] = val & 0xff; /* Ant A */
628 sc->rssi_5ghz[1] = val >> 8; /* Ant B */
629 val = rt2860_eeprom_read(sc, RT2860_EEPROM_RSSI2_5GHZ);
630 sc->rssi_5ghz[2] = val & 0xff; /* Ant C */
631 sc->lna[3] = val >> 8; /* channel group 3 */
632
633 val = rt2860_eeprom_read(sc, RT2860_EEPROM_LNA);
634 sc->lna[0] = val & 0xff; /* channel group 0 */
635 sc->lna[1] = val >> 8; /* channel group 1 */
636
637 /* fix broken 5GHz LNA entries */
638 if (sc->lna[2] == 0 || sc->lna[2] == 0xff) {
639 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
640 "invalid LNA for channel group %d\n", 2);
641 sc->lna[2] = sc->lna[1];
642 }
643 if (sc->lna[3] == 0 || sc->lna[3] == 0xff) {
644 RWN_DEBUG(RT2860_DBG_EEPROM, "rwn: rt2860_read_eeprom(): "
645 "invalid LNA for channel group %d\n", 3);
646 sc->lna[3] = sc->lna[1];
647 }
648
649 /* fix broken RSSI offset entries */
650 for (ant = 0; ant < 3; ant++) {
651 if (sc->rssi_2ghz[ant] < -10 || sc->rssi_2ghz[ant] > 10) {
652 RWN_DEBUG(RT2860_DBG_EEPROM,
653 "rwn: rt2860_read_eeprom(): "
654 "invalid RSSI%d offset: %d (2GHz)\n",
655 ant + 1, sc->rssi_2ghz[ant]);
656 sc->rssi_2ghz[ant] = 0;
657 }
658 if (sc->rssi_5ghz[ant] < -10 || sc->rssi_5ghz[ant] > 10) {
659 RWN_DEBUG(RT2860_DBG_EEPROM,
660 "rwn: rt2860_read_eeprom(): "
661 "invalid RSSI%d offset: %d (2GHz)\n",
662 ant + 1, sc->rssi_5ghz[ant]);
663 sc->rssi_5ghz[ant] = 0;
664 }
665 }
666
667 return (RT2860_SUCCESS);
668 }
669
670 /*
671 * Allocate an DMA memory and a DMA handle for accessing it
672 */
673 static int
674 rt2860_alloc_dma_mem(dev_info_t *devinfo, ddi_dma_attr_t *dma_attr,
675 size_t memsize, ddi_device_acc_attr_t *attr_p, uint_t alloc_flags,
676 uint_t bind_flags, struct dma_area *dma_p)
677 {
678 int err;
679
680 /*
681 * Allocate handle
682 */
683 err = ddi_dma_alloc_handle(devinfo, dma_attr,
684 DDI_DMA_SLEEP, NULL, &dma_p->dma_hdl);
685 if (err != DDI_SUCCESS) {
686 RWN_DEBUG(RT2860_DBG_DMA, "rwn: rwn_allo_dma_mem(): "
687 "failed to alloc handle\n");
688 goto fail1;
689 }
690
691 /*
692 * Allocate memory
693 */
694 err = ddi_dma_mem_alloc(dma_p->dma_hdl, memsize, attr_p,
695 alloc_flags, DDI_DMA_SLEEP, NULL, &dma_p->mem_va,
696 &dma_p->alength, &dma_p->acc_hdl);
697 if (err != DDI_SUCCESS) {
698 RWN_DEBUG(RT2860_DBG_DMA, "rwn: rwn_alloc_dma_mem(): "
699 "failed to alloc mem\n");
700 goto fail2;
701 }
702
703 /*
704 * Bind the two together
705 */
706 err = ddi_dma_addr_bind_handle(dma_p->dma_hdl, NULL,
707 dma_p->mem_va, dma_p->alength, bind_flags,
708 DDI_DMA_SLEEP, NULL, &dma_p->cookie, &dma_p->ncookies);
709 if (err != DDI_DMA_MAPPED) {
710 RWN_DEBUG(RT2860_DBG_DMA, "rwn: rwn_alloc_dma_mem(): "
711 "failed to bind handle\n");
712 goto fail3;
713 }
714
715 if (dma_p->ncookies != 1) {
716 RWN_DEBUG(RT2860_DBG_DMA, "rwn: rwn_alloc_dma_mem(): "
717 "failed to alloc cookies\n");
718 goto fail4;
719 }
720
721 dma_p->nslots = ~0U;
722 dma_p->size = ~0U;
723 dma_p->token = ~0U;
724 dma_p->offset = 0;
725 return (DDI_SUCCESS);
726
727 fail4:
728 (void) ddi_dma_unbind_handle(dma_p->dma_hdl);
729 fail3:
730 ddi_dma_mem_free(&dma_p->acc_hdl);
731 fail2:
732 ddi_dma_free_handle(&dma_p->dma_hdl);
733 fail1:
734 return (err);
735 }
736
737 static void
738 rt2860_free_dma_mem(struct dma_area *dma_p)
739 {
740 if (dma_p->dma_hdl != NULL) {
741 (void) ddi_dma_unbind_handle(dma_p->dma_hdl);
742 if (dma_p->acc_hdl != NULL) {
743 ddi_dma_mem_free(&dma_p->acc_hdl);
744 dma_p->acc_hdl = NULL;
745 }
746 ddi_dma_free_handle(&dma_p->dma_hdl);
747 dma_p->ncookies = 0;
748 dma_p->dma_hdl = NULL;
749 }
750 }
751
752 /*ARGSUSED*/
753 static int
754 rt2860_alloc_tx_ring(struct rt2860_softc *sc, struct rt2860_tx_ring *ring)
755 {
756 int size, err;
757
758 size = RT2860_TX_RING_COUNT * sizeof (struct rt2860_txd);
759
760 err = rt2860_alloc_dma_mem(sc->sc_dev, &rt2860_dma_attr, size,
761 &rt2860_desc_accattr, DDI_DMA_CONSISTENT,
762 DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
763 &ring->txdesc_dma);
764 if (err != DDI_SUCCESS) {
765 RWN_DEBUG(RT2860_DBG_DMA, "rwn: rt2860_alloc_tx_ring(): "
766 "failed to alloc dma mem\n");
767 goto fail1;
768 }
769
770 ring->txd = (struct rt2860_txd *)ring->txdesc_dma.mem_va;
771 ring->paddr = ring->txdesc_dma.cookie.dmac_address;
772
773 ring->cur = 0;
774 ring->next = 0;
775 ring->queued = 0;
776
777 (void) bzero(ring->txd, size);
778 RT2860_DMA_SYNC(ring->txdesc_dma, DDI_DMA_SYNC_FORDEV);
779 return (DDI_SUCCESS);
780 fail1:
781 return (err);
782 }
783
784 void
785 rt2860_reset_tx_ring(struct rt2860_softc *sc, struct rt2860_tx_ring *ring)
786 {
787 struct rt2860_tx_data *data;
788 int i;
789
790 for (i = 0; i < RT2860_TX_RING_COUNT; i++) {
791 ring->txd[i].sdl0 &= ~LE_16(RT2860_TX_DDONE);
792
793 if ((data = ring->data[i]) == NULL)
794 continue; /* nothing mapped in this slot */
795
796 /* by pass if it's quiesced */
797 if (!(sc->sc_flags & RT2860_F_QUIESCE))
798 RT2860_DMA_SYNC(data->txbuf_dma, DDI_DMA_SYNC_FORDEV);
799
800 if (data->ni != NULL) {
801 ieee80211_free_node(data->ni);
802 data->ni = NULL; /* node already freed */
803 }
804
805 SLIST_INSERT_HEAD(&sc->data_pool, data, next);
806 ring->data[i] = NULL;
807 }
808
809 /* by pass if it's quiesced */
810 if (!(sc->sc_flags & RT2860_F_QUIESCE))
811 RT2860_DMA_SYNC(ring->txdesc_dma, DDI_DMA_SYNC_FORDEV);
812
813 ring->queued = 0;
814 ring->cur = ring->next = 0;
815 }
816
817 /*ARGSUSED*/
818 static void
819 rt2860_free_tx_ring(struct rt2860_softc *sc, struct rt2860_tx_ring *ring)
820 {
821 if (ring->txd != NULL) {
822 rt2860_free_dma_mem(&ring->txdesc_dma);
823 }
824 }
825
826 static int
827 rt2860_alloc_rx_ring(struct rt2860_softc *sc, struct rt2860_rx_ring *ring)
828 {
829 struct rt2860_rx_data *data;
830 struct rt2860_rxd *rxd;
831 int i, err, size, datalen;
832
833 size = RT2860_RX_RING_COUNT * sizeof (struct rt2860_rxd);
834
835 err = rt2860_alloc_dma_mem(sc->sc_dev, &rt2860_dma_attr, size,
836 &rt2860_desc_accattr, DDI_DMA_CONSISTENT,
837 DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
838 &ring->rxdesc_dma);
839 if (err != DDI_SUCCESS) {
840 RWN_DEBUG(RT2860_DBG_DMA, "rwn: rt2860_alloc_rx_ring(): "
841 "failed to alloc dma mem\n");
842 goto fail1;
843 }
844
845 ring->rxd = (struct rt2860_rxd *)ring->rxdesc_dma.mem_va;
846 ring->paddr = ring->rxdesc_dma.cookie.dmac_address;
847 bzero(ring->rxd, size);
848
849 /*
850 * Pre-allocate Rx buffers and populate Rx ring.
851 */
852 datalen = RT2860_RX_RING_COUNT * sizeof (struct rt2860_rx_data);
853 bzero(ring->data, datalen);
854 for (i = 0; i < RT2860_RX_RING_COUNT; i++) {
855 rxd = &ring->rxd[i];
856 data = &ring->data[i];
857 /* alloc DMA memory */
858 (void) rt2860_alloc_dma_mem(sc->sc_dev, &rt2860_dma_attr,
859 sc->sc_dmabuf_size,
860 &rt2860_buf_accattr,
861 DDI_DMA_STREAMING,
862 DDI_DMA_READ | DDI_DMA_STREAMING,
863 &data->rxbuf_dma);
864 rxd->sdp0 = LE_32(data->rxbuf_dma.cookie.dmac_address);
865 rxd->sdl0 = LE_16(sc->sc_dmabuf_size);
866 }
867
868 ring->cur = 0;
869
870 RT2860_DMA_SYNC(ring->rxdesc_dma, DDI_DMA_SYNC_FORDEV);
871 return (DDI_SUCCESS);
872 fail2:
873 rt2860_free_dma_mem(&ring->rxdesc_dma);
874 fail1:
875 return (err);
876 }
877
878 /*ARGSUSED*/
879 void
880 rt2860_reset_rx_ring(struct rt2860_softc *sc, struct rt2860_rx_ring *ring)
881 {
882 int i;
883
884 for (i = 0; i < RT2860_RX_RING_COUNT; i++)
885 ring->rxd[i].sdl0 &= ~LE_16(RT2860_RX_DDONE);
886
887 RT2860_DMA_SYNC(ring->rxdesc_dma, DDI_DMA_SYNC_FORDEV);
888
889 ring->cur = 0;
890 }
891
892 /*ARGSUSED*/
893 static void
894 rt2860_free_rx_ring(struct rt2860_softc *sc, struct rt2860_rx_ring *ring)
895 {
896 struct rt2860_rx_data *data;
897 int i, count;
898
899 if (ring->rxd != NULL)
900 rt2860_free_dma_mem(&ring->rxdesc_dma);
901
902 count = RT2860_RX_RING_COUNT;
903 if (ring->data != NULL) {
904 for (i = 0; i < count; i++) {
905 data = &ring->data[i];
906 rt2860_free_dma_mem(&data->rxbuf_dma);
907 }
908 }
909 }
910
911 static int
912 rt2860_alloc_tx_pool(struct rt2860_softc *sc)
913 {
914 struct rt2860_tx_data *data;
915 int i, err, size;
916
917 size = RT2860_TX_POOL_COUNT * sizeof (struct rt2860_txwi);
918
919 /* init data_pool early in case of failure.. */
920 SLIST_INIT(&sc->data_pool);
921
922 err = rt2860_alloc_dma_mem(sc->sc_dev, &rt2860_dma_attr, size,
923 &rt2860_desc_accattr, DDI_DMA_CONSISTENT,
924 DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
925 &sc->txpool_dma);
926 if (err != DDI_SUCCESS) {
927 RWN_DEBUG(RT2860_DBG_DMA, "rwn: rt2860_alloc_tx_pool(): "
928 "failed to alloc dma mem\n");
929 goto fail1;
930 }
931
932 sc->txwi = (struct rt2860_txwi *)sc->txpool_dma.mem_va;
933 (void) bzero(sc->txwi, size);
934 RT2860_DMA_SYNC(sc->txpool_dma, DDI_DMA_SYNC_FORDEV);
935
936 for (i = 0; i < RT2860_TX_POOL_COUNT; i++) {
937 data = &sc->data[i];
938
939 err = rt2860_alloc_dma_mem(sc->sc_dev, &rt2860_dma_attr,
940 sc->sc_dmabuf_size,
941 &rt2860_buf_accattr, DDI_DMA_CONSISTENT,
942 DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
943 &data->txbuf_dma);
944 if (err != DDI_SUCCESS) {
945 RWN_DEBUG(RT2860_DBG_DMA,
946 "rwn: rt2860_alloc_tx_pool(): "
947 "failed to alloc dma mem\n");
948 goto fail2;
949 }
950 data->txwi = &sc->txwi[i];
951 data->paddr = sc->txpool_dma.cookie.dmac_address +
952 i * sizeof (struct rt2860_txwi);
953
954 SLIST_INSERT_HEAD(&sc->data_pool, data, next);
955 }
956 return (DDI_SUCCESS);
957 fail2:
958 rt2860_free_dma_mem(&sc->txpool_dma);
959 fail1:
960 return (err);
961 }
962
963 static void
964 rt2860_free_tx_pool(struct rt2860_softc *sc)
965 {
966 struct rt2860_tx_data *data;
967 int i;
968
969 if (sc->txwi != NULL) {
970 rt2860_free_dma_mem(&sc->txpool_dma);
971 }
972
973 for (i = 0; i < RT2860_TX_POOL_COUNT; i++) {
974 data = &sc->data[i];
975 rt2860_free_dma_mem(&data->txbuf_dma);
976 }
977 }
978
979 /* quickly determine if a given rate is CCK or OFDM */
980 #define RT2860_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
981
982 #define RT2860_ACK_SIZE 14 /* 10 + 4(FCS) */
983 #define RT2860_SIFS_TIME 10
984
985 static uint8_t
986 rt2860_rate2mcs(uint8_t rate)
987 {
988 switch (rate) {
989 /* CCK rates */
990 case 2:
991 return (0);
992 case 4:
993 return (1);
994 case 11:
995 return (2);
996 case 22:
997 return (3);
998 /* OFDM rates */
999 case 12:
1000 return (0);
1001 case 18:
1002 return (1);
1003 case 24:
1004 return (2);
1005 case 36:
1006 return (3);
1007 case 48:
1008 return (4);
1009 case 72:
1010 return (5);
1011 case 96:
1012 return (6);
1013 case 108:
1014 return (7);
1015 }
1016
1017 return (0); /* shouldn't get there */
1018 }
1019
1020 /*
1021 * Return the expected ack rate for a frame transmitted at rate `rate'.
1022 */
1023 static int
1024 rt2860_ack_rate(struct ieee80211com *ic, int rate)
1025 {
1026 switch (rate) {
1027 /* CCK rates */
1028 case 2:
1029 return (2);
1030 case 4:
1031 case 11:
1032 case 22:
1033 return ((ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate);
1034
1035 /* OFDM rates */
1036 case 12:
1037 case 18:
1038 return (12);
1039 case 24:
1040 case 36:
1041 return (24);
1042 case 48:
1043 case 72:
1044 case 96:
1045 case 108:
1046 return (48);
1047 }
1048
1049 /* default to 1Mbps */
1050 return (2);
1051 }
1052
1053
1054 /*
1055 * Compute the duration (in us) needed to transmit `len' bytes at rate `rate'.
1056 * The function automatically determines the operating mode depending on the
1057 * given rate. `flags' indicates whether short preamble is in use or not.
1058 */
1059 static uint16_t
1060 rt2860_txtime(int len, int rate, uint32_t flags)
1061 {
1062 uint16_t txtime;
1063
1064 if (RT2860_RATE_IS_OFDM(rate)) {
1065 /* IEEE Std 802.11g-2003, pp. 44 */
1066 txtime = (8 + 4 * len + 3 + rate - 1) / rate;
1067 txtime = 16 + 4 + 4 * txtime + 6;
1068 } else {
1069 /* IEEE Std 802.11b-1999, pp. 28 */
1070 txtime = (16 * len + rate - 1) / rate;
1071 if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE))
1072 txtime += 72 + 24;
1073 else
1074 txtime += 144 + 48;
1075 }
1076 return (txtime);
1077 }
1078
1079 static int
1080 rt2860_send(ieee80211com_t *ic, mblk_t *mp, uint8_t type)
1081 {
1082 struct rt2860_softc *sc = (struct rt2860_softc *)ic;
1083 struct rt2860_tx_ring *ring;
1084 struct rt2860_tx_data *data;
1085 struct rt2860_txd *txd;
1086 struct rt2860_txwi *txwi;
1087 struct ieee80211_frame *wh;
1088 struct ieee80211_node *ni;
1089 int qid, off, rate, err;
1090 int mblen, pktlen;
1091 uint_t hdrlen;
1092 uint8_t mcs, pid, qsel;
1093 uint16_t dur;
1094 mblk_t *m, *m0;
1095
1096 err = DDI_SUCCESS;
1097
1098 mutex_enter(&sc->sc_txlock);
1099 if (RT2860_IS_SUSPEND(sc)) {
1100 err = ENXIO;
1101 goto fail1;
1102 }
1103
1104 if ((type & IEEE80211_FC0_TYPE_MASK) !=
1105 IEEE80211_FC0_TYPE_DATA)
1106 qid = sc->mgtqid;
1107 else
1108 qid = EDCA_AC_BE;
1109 ring = &sc->txq[qid];
1110
1111 if (SLIST_EMPTY(&sc->data_pool) || (ring->queued > 15)) {
1112 sc->sc_need_sched = 1;
1113 sc->sc_tx_nobuf++;
1114 err = ENOMEM;
1115 goto fail1;
1116 }
1117
1118 /* the data pool contains at least one element, pick the first */
1119 data = SLIST_FIRST(&sc->data_pool);
1120
1121 m = allocb(msgdsize(mp) + 32, BPRI_MED);
1122 if (m == NULL) {
1123 RWN_DEBUG(RT2860_DBG_TX, "rwn: rt2860_send():"
1124 "rt2860_mgmt_send: can't alloc mblk.\n");
1125 err = DDI_FAILURE;
1126 goto fail1;
1127 }
1128
1129 for (off = 0, m0 = mp; m0 != NULL; m0 = m0->b_cont) {
1130 mblen = MBLKL(m0);
1131 (void) bcopy(m0->b_rptr, m->b_rptr + off, mblen);
1132 off += mblen;
1133 }
1134 m->b_wptr += off;
1135
1136 wh = (struct ieee80211_frame *)m->b_rptr;
1137 ni = ieee80211_find_txnode(ic, wh->i_addr1);
1138 if (ni == NULL) {
1139 err = DDI_FAILURE;
1140 sc->sc_tx_err++;
1141 goto fail2;
1142 }
1143
1144 if ((type & IEEE80211_FC0_TYPE_MASK) ==
1145 IEEE80211_FC0_TYPE_DATA)
1146 (void) ieee80211_encap(ic, m, ni);
1147
1148 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1149 struct ieee80211_key *k;
1150 k = ieee80211_crypto_encap(ic, m);
1151 if (k == NULL) {
1152 sc->sc_tx_err++;
1153 err = DDI_FAILURE;
1154 goto fail3;
1155 }
1156 /* packet header may have moved, reset our local pointer */
1157 wh = (struct ieee80211_frame *)m->b_rptr;
1158 }
1159 pktlen = msgdsize(m);
1160 hdrlen = sizeof (*wh);
1161
1162 /* pickup a rate */
1163 if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
1164 ((type & IEEE80211_FC0_TYPE_MASK) !=
1165 IEEE80211_FC0_TYPE_DATA))
1166 rate = ni->in_rates.ir_rates[0];
1167 else {
1168 if (ic->ic_fixed_rate != IEEE80211_FIXED_RATE_NONE)
1169 rate = ic->ic_fixed_rate;
1170 else
1171 rate = ni->in_rates.ir_rates[ni->in_txrate];
1172 }
1173 rate &= IEEE80211_RATE_VAL;
1174
1175 /* get MCS code from rate */
1176 mcs = rt2860_rate2mcs(rate);
1177
1178 /* setup TX Wireless Information */
1179 txwi = data->txwi;
1180 (void) bzero(txwi, sizeof (struct rt2860_txwi));
1181 txwi->wcid = (type == IEEE80211_FC0_TYPE_DATA) ?
1182 RT2860_AID2WCID(ni->in_associd) : 0xff;
1183 txwi->len = LE_16(pktlen);
1184 if (!RT2860_RATE_IS_OFDM(rate)) {
1185 txwi->phy = LE_16(RT2860_PHY_CCK);
1186 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1187 mcs |= RT2860_PHY_SHPRE;
1188 } else
1189 txwi->phy = LE_16(RT2860_PHY_OFDM);
1190 txwi->phy |= LE_16(mcs);
1191
1192 /*
1193 * We store the MCS code into the driver-private PacketID field.
1194 * The PacketID is latched into TX_STAT_FIFO when Tx completes so
1195 * that we know at which initial rate the frame was transmitted.
1196 * We add 1 to the MCS code because setting the PacketID field to
1197 * 0 means that we don't want feedback in TX_STAT_FIFO.
1198 */
1199 pid = (mcs + 1) & 0xf;
1200 txwi->len |= LE_16(pid << RT2860_TX_PID_SHIFT);
1201
1202 /* check if RTS/CTS or CTS-to-self protection is required */
1203 if (!IEEE80211_IS_MULTICAST(wh->i_addr1) &&
1204 (pktlen + IEEE80211_CRC_LEN > ic->ic_rtsthreshold ||
1205 ((ic->ic_flags &
1206 IEEE80211_F_USEPROT) && RT2860_RATE_IS_OFDM(rate))))
1207 txwi->txop = RT2860_TX_TXOP_HT;
1208 else
1209 txwi->txop = RT2860_TX_TXOP_BACKOFF;
1210
1211 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1212 txwi->xflags |= RT2860_TX_ACK;
1213
1214 dur = rt2860_txtime(RT2860_ACK_SIZE, rt2860_ack_rate(ic, rate),
1215 ic->ic_flags) + sc->sifs;
1216 *(uint16_t *)wh->i_dur = LE_16(dur);
1217 }
1218
1219 /* copy and trim 802.11 header */
1220 bcopy(wh, &txwi->wh, hdrlen);
1221 m->b_rptr += hdrlen;
1222 bcopy(m->b_rptr, data->txbuf_dma.mem_va, pktlen - hdrlen);
1223
1224 qsel = (qid < EDCA_NUM_AC) ? RT2860_TX_QSEL_EDCA : RT2860_TX_QSEL_MGMT;
1225
1226 /* first segment is TXWI + 802.11 header */
1227 txd = &ring->txd[ring->cur];
1228 txd->sdp0 = LE_32(data->paddr);
1229 txd->sdl0 = LE_16(16 + hdrlen);
1230 txd->flags = qsel;
1231
1232 /* finalize last segment */
1233 txd->sdp1 = LE_32(data->txbuf_dma.cookie.dmac_address);
1234 txd->sdl1 = LE_16(pktlen - hdrlen | RT2860_TX_LS1);
1235
1236 /* remove from the free pool and link it into the SW Tx slot */
1237 SLIST_REMOVE_HEAD(&sc->data_pool, next);
1238 data->ni = ieee80211_ref_node(ni);
1239 ring->data[ring->cur] = data;
1240
1241 (void) ddi_dma_sync(sc->txpool_dma.dma_hdl,
1242 _PTRDIFF(txwi, sc->txwi),
1243 (hdrlen + 16 + 2),
1244 DDI_DMA_SYNC_FORDEV);
1245 RT2860_DMA_SYNC(data->txbuf_dma, DDI_DMA_SYNC_FORDEV);
1246 RT2860_DMA_SYNC(ring->txdesc_dma, DDI_DMA_SYNC_FORDEV);
1247
1248 RWN_DEBUG(RT2860_DBG_TX, "rwn: rt2860_send():"
1249 "sending frame qid=%d wcid=%d rate=%d cur = %x\n",
1250 qid, txwi->wcid, rate, ring->cur);
1251
1252 ring->queued++;
1253 ring->cur = (ring->cur + 1) % RT2860_TX_RING_COUNT;
1254
1255 /* kick Tx */
1256 RT2860_WRITE(sc, RT2860_TX_CTX_IDX(qid), ring->cur);
1257
1258 sc->sc_tx_timer = 5;
1259
1260 ic->ic_stats.is_tx_frags++;
1261 ic->ic_stats.is_tx_bytes += pktlen;
1262
1263 fail3:
1264 ieee80211_free_node(ni);
1265 fail2:
1266 freemsg(m);
1267 fail1:
1268 if ((type & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_DATA ||
1269 err == DDI_SUCCESS)
1270 freemsg(mp);
1271 mutex_exit(&sc->sc_txlock);
1272 return (err);
1273 }
1274
1275 /*
1276 * This function is called periodically (every 200ms) during scanning to
1277 * switch from one channel to another.
1278 */
1279 static void
1280 rt2860_next_scan(void *arg)
1281 {
1282 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
1283 struct ieee80211com *ic = &sc->sc_ic;
1284
1285 if (ic->ic_state == IEEE80211_S_SCAN)
1286 (void) ieee80211_next_scan(ic);
1287 }
1288
1289 static void
1290 rt2860_updateslot(struct rt2860_softc *sc)
1291 {
1292 struct ieee80211com *ic = &sc->sc_ic;
1293 uint32_t tmp;
1294
1295 tmp = RT2860_READ(sc, RT2860_BKOFF_SLOT_CFG);
1296 tmp &= ~0xff;
1297 tmp |= (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
1298 RT2860_WRITE(sc, RT2860_BKOFF_SLOT_CFG, tmp);
1299 }
1300
1301 static void
1302 rt2860_iter_func(void *arg, struct ieee80211_node *ni)
1303 {
1304 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
1305 uint8_t wcid;
1306
1307 wcid = RT2860_AID2WCID(ni->in_associd);
1308 rt2860_amrr_choose(&sc->amrr, ni, &sc->amn[wcid]);
1309 }
1310
1311 static void
1312 rt2860_updatestats(void *arg)
1313 {
1314 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
1315 struct ieee80211com *ic = &sc->sc_ic;
1316
1317 if (ic->ic_opmode == IEEE80211_M_STA)
1318 rt2860_iter_func(sc, ic->ic_bss);
1319 else
1320 ieee80211_iterate_nodes(&ic->ic_sta, rt2860_iter_func, arg);
1321
1322 sc->sc_rssadapt_id = timeout(rt2860_updatestats, (void *)sc,
1323 drv_usectohz(500 * 1000));
1324 }
1325
1326 static void
1327 rt2860_enable_mrr(struct rt2860_softc *sc)
1328 {
1329 #define CCK(mcs) (mcs)
1330 #define OFDM(mcs) ((uint32_t)1 << 3 | (mcs))
1331 RT2860_WRITE(sc, RT2860_LG_FBK_CFG0,
1332 OFDM(6) << 28 | /* 54->48 */
1333 OFDM(5) << 24 | /* 48->36 */
1334 OFDM(4) << 20 | /* 36->24 */
1335 OFDM(3) << 16 | /* 24->18 */
1336 OFDM(2) << 12 | /* 18->12 */
1337 OFDM(1) << 8 | /* 12-> 9 */
1338 OFDM(0) << 4 | /* 9-> 6 */
1339 OFDM(0)); /* 6-> 6 */
1340
1341 RT2860_WRITE(sc, RT2860_LG_FBK_CFG1,
1342 CCK(2) << 12 | /* 11->5.5 */
1343 CCK(1) << 8 | /* 5.5-> 2 */
1344 CCK(0) << 4 | /* 2-> 1 */
1345 CCK(0)); /* 1-> 1 */
1346 #undef OFDM
1347 #undef CCK
1348 }
1349
1350 static void
1351 rt2860_set_txpreamble(struct rt2860_softc *sc)
1352 {
1353 uint32_t tmp;
1354
1355 tmp = RT2860_READ(sc, RT2860_AUTO_RSP_CFG);
1356 tmp &= ~RT2860_CCK_SHORT_EN;
1357 if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)
1358 tmp |= RT2860_CCK_SHORT_EN;
1359 RT2860_WRITE(sc, RT2860_AUTO_RSP_CFG, tmp);
1360 }
1361
1362 static void
1363 rt2860_set_bssid(struct rt2860_softc *sc, const uint8_t *bssid)
1364 {
1365 RT2860_WRITE(sc, RT2860_MAC_BSSID_DW0,
1366 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24);
1367 RT2860_WRITE(sc, RT2860_MAC_BSSID_DW1,
1368 bssid[4] | bssid[5] << 8);
1369 }
1370
1371 static void
1372 rt2860_set_basicrates(struct rt2860_softc *sc)
1373 {
1374 struct ieee80211com *ic = &sc->sc_ic;
1375
1376 /* set basic rates mask */
1377 if (ic->ic_curmode == IEEE80211_MODE_11B)
1378 RT2860_WRITE(sc, RT2860_LEGACY_BASIC_RATE, 0x003);
1379 else if (ic->ic_curmode == IEEE80211_MODE_11A)
1380 RT2860_WRITE(sc, RT2860_LEGACY_BASIC_RATE, 0x150);
1381 else /* 11g */
1382 RT2860_WRITE(sc, RT2860_LEGACY_BASIC_RATE, 0x15f);
1383 }
1384
1385 static void
1386 rt2860_amrr_node_init(const struct rt2860_amrr *amrr,
1387 struct rt2860_amrr_node *amn)
1388 {
1389 amn->amn_success = 0;
1390 amn->amn_recovery = 0;
1391 amn->amn_txcnt = amn->amn_retrycnt = 0;
1392 amn->amn_success_threshold = amrr->amrr_min_success_threshold;
1393 }
1394
1395 static void
1396 rt2860_amrr_choose(struct rt2860_amrr *amrr, struct ieee80211_node *ni,
1397 struct rt2860_amrr_node *amn)
1398 {
1399 #define RV(rate) ((rate) & IEEE80211_RATE_VAL)
1400 #define is_success(amn) \
1401 ((amn)->amn_retrycnt < (amn)->amn_txcnt / 10)
1402 #define is_failure(amn) \
1403 ((amn)->amn_retrycnt > (amn)->amn_txcnt / 3)
1404 #define is_enough(amn) \
1405 ((amn)->amn_txcnt > 10)
1406 #define is_min_rate(ni) \
1407 ((ni)->in_txrate == 0)
1408 #define is_max_rate(ni) \
1409 ((ni)->in_txrate == (ni)->in_rates.ir_nrates - 1)
1410 #define increase_rate(ni) \
1411 ((ni)->in_txrate++)
1412 #define decrease_rate(ni) \
1413 ((ni)->in_txrate--)
1414 #define reset_cnt(amn) \
1415 { (amn)->amn_txcnt = (amn)->amn_retrycnt = 0; }
1416
1417 int need_change = 0;
1418
1419 if (is_success(amn) && is_enough(amn)) {
1420 amn->amn_success++;
1421 if (amn->amn_success >= amn->amn_success_threshold &&
1422 !is_max_rate(ni)) {
1423 amn->amn_recovery = 1;
1424 amn->amn_success = 0;
1425 increase_rate(ni);
1426 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_amrr_choose(): "
1427 "increase rate = %d, #tx = %d, #retries = %d\n",
1428 RV(ni->in_rates.ir_rates[ni->in_txrate]),
1429 amn->amn_txcnt, amn->amn_retrycnt);
1430 need_change = 1;
1431 } else {
1432 amn->amn_recovery = 0;
1433 }
1434 } else if (is_failure(amn)) {
1435 amn->amn_success = 0;
1436 if (!is_min_rate(ni)) {
1437 if (amn->amn_recovery) {
1438 amn->amn_success_threshold *= 2;
1439 if (amn->amn_success_threshold >
1440 amrr->amrr_max_success_threshold)
1441 amn->amn_success_threshold =
1442 amrr->amrr_max_success_threshold;
1443 } else {
1444 amn->amn_success_threshold =
1445 amrr->amrr_min_success_threshold;
1446 }
1447 decrease_rate(ni);
1448 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_amrr_choose(): "
1449 "decrease rate = %d, #tx = %d, #retries = %d\n",
1450 RV(ni->in_rates.ir_rates[ni->in_txrate]),
1451 amn->amn_txcnt, amn->amn_retrycnt);
1452 need_change = 1;
1453 }
1454 amn->amn_recovery = 0;
1455 }
1456
1457 if (is_enough(amn) || need_change)
1458 reset_cnt(amn);
1459 #undef RV
1460 }
1461
1462 static void
1463 rt2860_newassoc(struct ieee80211com *ic, struct ieee80211_node *in, int isnew)
1464 {
1465 struct rt2860_softc *sc = (struct rt2860_softc *)ic;
1466 uint32_t off;
1467 uint8_t *fptr, wcid = 0;
1468 int i;
1469
1470 if (isnew && in->in_associd != 0) {
1471 /* only interested in true associations */
1472 wcid = RT2860_AID2WCID(in->in_associd);
1473
1474 /* init WCID table entry */
1475 off = RT2860_WCID_ENTRY(wcid);
1476 fptr = in->in_macaddr;
1477 for (i = 0; i < IEEE80211_ADDR_LEN; i++)
1478 rt2860_mem_write1(sc, off++, *fptr++);
1479 }
1480 rt2860_amrr_node_init(&sc->amrr, &sc->amn[wcid]);
1481
1482 /* set rate to some reasonable initial value */
1483 i = in->in_rates.ir_nrates - 1;
1484 for (; i > 0 && (in->in_rates.ir_rates[i] & IEEE80211_RATE_VAL) > 72; )
1485 i--;
1486 in->in_txrate = i;
1487
1488 RWN_DEBUG(RT2860_DBG_80211, "rwn: rt2860_newassoc(): "
1489 "new assoc isnew=%d WCID=%d, initial rate=%d\n",
1490 isnew, wcid,
1491 in->in_rates.ir_rates[i] & IEEE80211_RATE_VAL);
1492 RWN_DEBUG(RT2860_DBG_80211, "rwn: rt2860_newassoc(): "
1493 "addr=%x:%x:%x:%x:%x:%x\n",
1494 in->in_macaddr[0], in->in_macaddr[1], in->in_macaddr[2],
1495 in->in_macaddr[3], in->in_macaddr[4], in->in_macaddr[5]);
1496 }
1497
1498 void
1499 rt2860_enable_tsf_sync(struct rt2860_softc *sc)
1500 {
1501 struct ieee80211com *ic = &sc->sc_ic;
1502 uint32_t tmp;
1503
1504 tmp = RT2860_READ(sc, RT2860_BCN_TIME_CFG);
1505
1506 tmp &= ~0x1fffff;
1507 tmp |= ic->ic_bss->in_intval * 16;
1508 tmp |= RT2860_TSF_TIMER_EN | RT2860_TBTT_TIMER_EN;
1509 if (ic->ic_opmode == IEEE80211_M_STA) {
1510 /*
1511 * Local TSF is always updated with remote TSF on beacon
1512 * reception.
1513 */
1514 tmp |= 1 << RT2860_TSF_SYNC_MODE_SHIFT;
1515 }
1516
1517 RT2860_WRITE(sc, RT2860_BCN_TIME_CFG, tmp);
1518 }
1519
1520 static int
1521 rt2860_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
1522 {
1523 struct rt2860_softc *sc = (struct rt2860_softc *)ic;
1524 enum ieee80211_state ostate;
1525 int err;
1526 uint32_t tmp;
1527
1528 ostate = ic->ic_state;
1529 RWN_DEBUG(RT2860_DBG_80211, "rwn: rt2860_newstate(): "
1530 "%x -> %x!\n", ostate, nstate);
1531
1532 RT2860_GLOCK(sc);
1533 if (sc->sc_scan_id != 0) {
1534 (void) untimeout(sc->sc_scan_id);
1535 sc->sc_scan_id = 0;
1536 }
1537 if (sc->sc_rssadapt_id != 0) {
1538 (void) untimeout(sc->sc_rssadapt_id);
1539 sc->sc_rssadapt_id = 0;
1540 }
1541 if (ostate == IEEE80211_S_RUN) {
1542 /* turn link LED off */
1543 rt2860_set_leds(sc, RT2860_LED_RADIO);
1544 }
1545
1546 switch (nstate) {
1547 case IEEE80211_S_INIT:
1548 if (ostate == IEEE80211_S_RUN) {
1549 /* abort TSF synchronization */
1550 tmp = RT2860_READ(sc, RT2860_BCN_TIME_CFG);
1551 RT2860_WRITE(sc, RT2860_BCN_TIME_CFG,
1552 tmp & ~(RT2860_BCN_TX_EN | RT2860_TSF_TIMER_EN |
1553 RT2860_TBTT_TIMER_EN));
1554 }
1555 break;
1556
1557 case IEEE80211_S_SCAN:
1558 rt2860_set_chan(sc, ic->ic_curchan);
1559 sc->sc_scan_id = timeout(rt2860_next_scan, (void *)sc,
1560 drv_usectohz(200000));
1561 break;
1562
1563 case IEEE80211_S_AUTH:
1564 case IEEE80211_S_ASSOC:
1565 rt2860_set_chan(sc, ic->ic_curchan);
1566 break;
1567
1568 case IEEE80211_S_RUN:
1569 rt2860_set_chan(sc, ic->ic_curchan);
1570
1571 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1572 rt2860_updateslot(sc);
1573 rt2860_enable_mrr(sc);
1574 rt2860_set_txpreamble(sc);
1575 rt2860_set_basicrates(sc);
1576 rt2860_set_bssid(sc, ic->ic_bss->in_bssid);
1577 }
1578 if (ic->ic_opmode == IEEE80211_M_STA) {
1579 /* fake a join to init the tx rate */
1580 rt2860_newassoc(ic, ic->ic_bss, 1);
1581 }
1582
1583 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1584 rt2860_enable_tsf_sync(sc);
1585 sc->sc_rssadapt_id = timeout(rt2860_updatestats,
1586 (void *)sc, drv_usectohz(500 * 1000));
1587 }
1588
1589 /* turn link LED on */
1590 rt2860_set_leds(sc, RT2860_LED_RADIO |
1591 (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan) ?
1592 RT2860_LED_LINK_2GHZ : RT2860_LED_LINK_5GHZ));
1593 break;
1594 }
1595
1596 RT2860_GUNLOCK(sc);
1597
1598 err = sc->sc_newstate(ic, nstate, arg);
1599
1600 return (err);
1601 }
1602
1603 /*
1604 * Return the Rx chain with the highest RSSI for a given frame.
1605 */
1606 static uint8_t
1607 rt2860_maxrssi_chain(struct rt2860_softc *sc, const struct rt2860_rxwi *rxwi)
1608 {
1609 uint8_t rxchain = 0;
1610
1611 if (sc->nrxchains > 1)
1612 if (rxwi->rssi[1] > rxwi->rssi[rxchain])
1613 rxchain = 1;
1614 if (sc->nrxchains > 2)
1615 if (rxwi->rssi[2] > rxwi->rssi[rxchain])
1616 rxchain = 2;
1617
1618 return (rxchain);
1619 }
1620
1621 static void
1622 rt2860_drain_stats_fifo(struct rt2860_softc *sc)
1623 {
1624 struct rt2860_amrr_node *amn;
1625 uint32_t stat;
1626 uint8_t wcid, mcs, pid;
1627
1628 /* drain Tx status FIFO (maxsize = 16) */
1629 while ((stat = RT2860_READ(sc, RT2860_TX_STAT_FIFO)) & RT2860_TXQ_VLD) {
1630 RWN_DEBUG(RT2860_DBG_TX, "rwn: rt2860_drain_stats_fifo(): "
1631 "tx stat 0x%08\n", stat);
1632
1633 wcid = (stat >> 8) & 0xff;
1634
1635 /* if no ACK was requested, no feedback is available */
1636 if (!(stat & RT2860_TXQ_ACKREQ) || wcid == 0xff)
1637 continue;
1638 /* update per-STA AMRR stats */
1639 amn = &sc->amn[wcid];
1640 amn->amn_txcnt++;
1641 if (stat & RT2860_TXQ_OK) {
1642 /*
1643 * Check if there were retries, ie if the Tx success
1644 * rate is different from the requested rate. Note
1645 * that it works only because we do not allow rate
1646 * fallback from OFDM to CCK.
1647 */
1648 mcs = (stat >> RT2860_TXQ_MCS_SHIFT) & 0x7f;
1649 pid = (stat >> RT2860_TXQ_PID_SHIFT) & 0xf;
1650 if (mcs + 1 != pid)
1651 amn->amn_retrycnt++;
1652 } else
1653 amn->amn_retrycnt++;
1654 }
1655 }
1656
1657 /*ARGSUSED*/
1658 static void
1659 rt2860_tx_intr(struct rt2860_softc *sc, int qid)
1660 {
1661 struct rt2860_tx_ring *ring = &sc->txq[qid];
1662 struct ieee80211com *ic = &sc->sc_ic;
1663 uint32_t hw;
1664
1665 rt2860_drain_stats_fifo(sc);
1666
1667 mutex_enter(&sc->sc_txlock);
1668 hw = RT2860_READ(sc, RT2860_TX_DTX_IDX(qid));
1669 RWN_DEBUG(RT2860_DBG_TX, "rwn: rwn_tx_intr():"
1670 "hw = %x, ring->next = %x, queued = %d\n",
1671 hw, ring->next, ring->queued);
1672 while (ring->next != hw) {
1673 struct rt2860_txd *txd = &ring->txd[ring->next];
1674 struct rt2860_tx_data *data = ring->data[ring->next];
1675
1676 if (data != NULL) {
1677 RT2860_DMA_SYNC(data->txbuf_dma, DDI_DMA_SYNC_FORDEV);
1678 if (data->ni != NULL) {
1679 ieee80211_free_node(data->ni);
1680 data->ni = NULL;
1681 }
1682 SLIST_INSERT_HEAD(&sc->data_pool, data, next);
1683 ring->data[ring->next] = NULL;
1684 }
1685
1686 txd->sdl0 &= ~LE_16(RT2860_TX_DDONE);
1687
1688 (void) ddi_dma_sync(ring->txdesc_dma.dma_hdl,
1689 ring->next * sizeof (struct rt2860_txd),
1690 sizeof (struct rt2860_txd),
1691 DDI_DMA_SYNC_FORDEV);
1692
1693 ring->queued--;
1694 ring->next = (ring->next + 1) % RT2860_TX_RING_COUNT;
1695
1696 if (sc->sc_need_sched &&
1697 (ring->queued < RT2860_TX_RING_COUNT)) {
1698 sc->sc_need_sched = 0;
1699 mac_tx_update(ic->ic_mach);
1700 }
1701 }
1702 sc->sc_tx_timer = 0;
1703 mutex_exit(&sc->sc_txlock);
1704 }
1705
1706 static void
1707 rt2860_rx_intr(struct rt2860_softc *sc)
1708 {
1709 struct ieee80211com *ic = &sc->sc_ic;
1710 struct ieee80211_node *ni;
1711 struct ieee80211_frame *wh;
1712 int pktlen;
1713 uint8_t ant, rssi, *rxbuf;
1714 mblk_t *mp0;
1715
1716 mutex_enter(&sc->sc_rxlock);
1717 for (;;) {
1718 struct rt2860_rx_data *data = &sc->rxq.data[sc->rxq.cur];
1719 struct rt2860_rxd *rxd = &sc->rxq.rxd[sc->rxq.cur];
1720 struct rt2860_rxwi *rxwi;
1721
1722 (void) ddi_dma_sync(sc->rxq.rxdesc_dma.dma_hdl,
1723 sc->rxq.cur * sizeof (struct rt2860_rxd),
1724 sizeof (struct rt2860_rxd),
1725 DDI_DMA_SYNC_FORKERNEL);
1726
1727 if (!(rxd->sdl0 & LE_16(RT2860_RX_DDONE))) {
1728 RWN_DEBUG(RT2860_DBG_RX, "rwn: rt2860_rx_intr(): "
1729 "rx done!\n");
1730 break;
1731 }
1732
1733 if (rxd->flags &
1734 LE_32(RT2860_RX_CRCERR | RT2860_RX_ICVERR)) {
1735 RWN_DEBUG(RT2860_DBG_RX, "rwn: rt2860_rx_intr(): "
1736 "rx crc error & rx icv error!\n");
1737 sc->sc_rx_err++;
1738 goto skip;
1739 }
1740
1741 if (rxd->flags & LE_32(RT2860_RX_MICERR)) {
1742 RWN_DEBUG(RT2860_DBG_RX, "rwn: rt2860_rx_intr(): "
1743 "rx mic error!\n");
1744 sc->sc_rx_err++;
1745 goto skip;
1746 }
1747
1748 (void) ddi_dma_sync(data->rxbuf_dma.dma_hdl,
1749 data->rxbuf_dma.offset,
1750 data->rxbuf_dma.alength,
1751 DDI_DMA_SYNC_FORCPU);
1752
1753 rxbuf = (uint8_t *)data->rxbuf_dma.mem_va;
1754 rxd->sdp0 = LE_32(data->rxbuf_dma.cookie.dmac_address);
1755 rxwi = (struct rt2860_rxwi *)rxbuf;
1756 rxbuf = (uint8_t *)(rxwi + 1);
1757 pktlen = LE_16(rxwi->len) & 0xfff;
1758
1759 mp0 = allocb(sc->sc_dmabuf_size, BPRI_MED);
1760 if (mp0 == NULL) {
1761 RWN_DEBUG(RT2860_DBG_RX, "rwn: rt2860_rx_intr():"
1762 "alloc mblk error\n");
1763 sc->sc_rx_nobuf++;
1764 goto skip;
1765 }
1766 bcopy(rxbuf, mp0->b_rptr, pktlen);
1767 mp0->b_wptr += pktlen;
1768
1769 wh = (struct ieee80211_frame *)mp0->b_rptr;
1770
1771 /* HW may insert 2 padding bytes after 802.11 header */
1772 if (rxd->flags & LE_32(RT2860_RX_L2PAD)) {
1773 RWN_DEBUG(RT2860_DBG_RX, "rwn: rt2860_rx_intr():"
1774 "2 padding bytes after 80211 header!\n");
1775 }
1776
1777 ant = rt2860_maxrssi_chain(sc, rxwi);
1778 rssi = RT2860_RSSI_OFFSET - rxwi->rssi[ant];
1779 /* grab a reference to the source node */
1780 ni = ieee80211_find_rxnode(ic, wh);
1781
1782 (void) ieee80211_input(ic, mp0, ni, rssi, 0);
1783
1784 /* node is no longer needed */
1785 ieee80211_free_node(ni);
1786 skip:
1787 rxd->sdl0 &= ~LE_16(RT2860_RX_DDONE);
1788
1789 (void) ddi_dma_sync(sc->rxq.rxdesc_dma.dma_hdl,
1790 sc->rxq.cur * sizeof (struct rt2860_rxd),
1791 sizeof (struct rt2860_rxd),
1792 DDI_DMA_SYNC_FORDEV);
1793
1794 sc->rxq.cur = (sc->rxq.cur + 1) % RT2860_RX_RING_COUNT;
1795 }
1796 mutex_exit(&sc->sc_rxlock);
1797
1798 /* tell HW what we have processed */
1799 RT2860_WRITE(sc, RT2860_RX_CALC_IDX,
1800 (sc->rxq.cur - 1) % RT2860_RX_RING_COUNT);
1801 }
1802
1803 static uint_t
1804 rt2860_softintr(caddr_t data)
1805 {
1806 struct rt2860_softc *sc = (struct rt2860_softc *)data;
1807
1808 /*
1809 * Check if the soft interrupt is triggered by another
1810 * driver at the same level.
1811 */
1812 RT2860_GLOCK(sc);
1813 if (sc->sc_rx_pend) {
1814 sc->sc_rx_pend = 0;
1815 RT2860_GUNLOCK(sc);
1816 rt2860_rx_intr(sc);
1817 return (DDI_INTR_CLAIMED);
1818 }
1819 RT2860_GUNLOCK(sc);
1820
1821 return (DDI_INTR_UNCLAIMED);
1822 }
1823
1824 static uint_t
1825 rt2860_intr(caddr_t arg)
1826 {
1827 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
1828 uint32_t r;
1829
1830 RT2860_GLOCK(sc);
1831
1832 if ((!RT2860_IS_RUNNING(sc)) || RT2860_IS_SUSPEND(sc)) {
1833 /*
1834 * The hardware is not ready/present, don't touch anything.
1835 * Note this can happen early on if the IRQ is shared.
1836 */
1837 RT2860_GUNLOCK(sc);
1838 return (DDI_INTR_UNCLAIMED);
1839 }
1840
1841 r = RT2860_READ(sc, RT2860_INT_STATUS);
1842 if (r == 0xffffffff) {
1843 RT2860_GUNLOCK(sc);
1844 return (DDI_INTR_UNCLAIMED);
1845 }
1846 if (r == 0) {
1847 RT2860_GUNLOCK(sc);
1848 return (DDI_INTR_UNCLAIMED);
1849 }
1850
1851 /* acknowledge interrupts */
1852 RT2860_WRITE(sc, RT2860_INT_STATUS, r);
1853
1854 if (r & RT2860_TX_COHERENT)
1855 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr()"
1856 "RT2860_TX_COHERENT\n");
1857
1858 if (r & RT2860_RX_COHERENT)
1859 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr()"
1860 "RT2860_RX_COHERENT\n");
1861
1862 if (r & RT2860_MAC_INT_2) {
1863 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr(): "
1864 "RT2860_MAC_INT_2\n");
1865 rt2860_drain_stats_fifo(sc);
1866 }
1867
1868 if (r & RT2860_TX_DONE_INT5) {
1869 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr(): "
1870 "RT2860_TX_DONE_INT5\n");
1871 rt2860_tx_intr(sc, 5);
1872 }
1873
1874 if (r & RT2860_RX_DONE_INT) {
1875 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr()"
1876 "RT2860_RX_INT\n");
1877 sc->sc_rx_pend = 1;
1878 ddi_trigger_softintr(sc->sc_softintr_hdl);
1879 }
1880
1881 if (r & RT2860_TX_DONE_INT4) {
1882 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr(): "
1883 "RT2860_TX_DONE_INT4\n");
1884 rt2860_tx_intr(sc, 4);
1885 }
1886
1887 if (r & RT2860_TX_DONE_INT3) {
1888 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr(): "
1889 "RT2860_TX_DONE_INT3\n");
1890 rt2860_tx_intr(sc, 3);
1891 }
1892
1893 if (r & RT2860_TX_DONE_INT2) {
1894 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr(): "
1895 "RT2860_TX_DONE_INT2\n");
1896 rt2860_tx_intr(sc, 2);
1897 }
1898
1899 if (r & RT2860_TX_DONE_INT1) {
1900 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr(): "
1901 "RT2860_TX_DONE_INT1\n");
1902 rt2860_tx_intr(sc, 1);
1903 }
1904
1905 if (r & RT2860_TX_DONE_INT0) {
1906 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr(): "
1907 "RT2860_TX_DONE_INT0\n");
1908 rt2860_tx_intr(sc, 0);
1909 }
1910
1911 if (r & RT2860_MAC_INT_0) {
1912 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr(): "
1913 "RT2860_MAC_INT_0\n");
1914 struct ieee80211com *ic = &sc->sc_ic;
1915 /* check if protection mode has changed */
1916 if ((sc->sc_ic_flags ^ ic->ic_flags) & IEEE80211_F_USEPROT) {
1917 rt2860_updateprot(ic);
1918 sc->sc_ic_flags = ic->ic_flags;
1919 }
1920 }
1921
1922 if (r & RT2860_MAC_INT_3)
1923 RWN_DEBUG(RT2860_DBG_INTR, "rwn: rt2860_intr(): "
1924 "RT2860_MAC_INT_3\n");
1925
1926 RT2860_GUNLOCK(sc);
1927
1928 return (DDI_INTR_CLAIMED);
1929 }
1930
1931 static void
1932 rt2860_set_region_4(struct rt2860_softc *sc,
1933 uint32_t addr, uint32_t data, int size)
1934 {
1935 for (; size > 0; size--, data++, addr += 4)
1936 ddi_put32((sc)->sc_io_handle,
1937 (uint32_t *)((uintptr_t)(sc)->sc_io_base + addr), data);
1938 }
1939
1940 static int
1941 rt2860_load_microcode(struct rt2860_softc *sc)
1942 {
1943 int ntries;
1944 size_t size;
1945 uint8_t *ucode, *fptr;
1946 uint32_t off, i;
1947
1948 ucode = rt2860_fw_bin;
1949 size = sizeof (rt2860_fw_bin);
1950 RWN_DEBUG(RT2860_DBG_FW, "rwn: rt2860_load_microcode(): "
1951 "The size of ucode is: %x\n", size);
1952
1953 /* set "host program ram write selection" bit */
1954 RT2860_WRITE(sc, RT2860_SYS_CTRL, RT2860_HST_PM_SEL);
1955 /* write microcode image */
1956 fptr = ucode;
1957 off = RT2860_FW_BASE;
1958 for (i = 0; i < size; i++) {
1959 rt2860_mem_write1(sc, off++, *fptr++);
1960 }
1961 /* kick microcontroller unit */
1962 RT2860_WRITE(sc, RT2860_SYS_CTRL, 0);
1963 RT2860_WRITE(sc, RT2860_SYS_CTRL, RT2860_MCU_RESET);
1964
1965 RT2860_WRITE(sc, RT2860_H2M_BBPAGENT, 0);
1966 RT2860_WRITE(sc, RT2860_H2M_MAILBOX, 0);
1967
1968 /* wait until microcontroller is ready */
1969 for (ntries = 0; ntries < 1000; ntries++) {
1970 if (RT2860_READ(sc, RT2860_SYS_CTRL) & RT2860_MCU_READY)
1971 break;
1972 DELAY(1000);
1973 }
1974 if (ntries == 1000) {
1975 RWN_DEBUG(RT2860_DBG_FW, "rwn: rt2860_load_microcode(): "
1976 "timeout waiting for MCU to initialie\n");
1977 return (ETIMEDOUT);
1978 }
1979
1980 return (0);
1981 }
1982
1983 static void
1984 rt2860_set_macaddr(struct rt2860_softc *sc, const uint8_t *addr)
1985 {
1986 RT2860_WRITE(sc, RT2860_MAC_ADDR_DW0,
1987 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
1988 RT2860_WRITE(sc, RT2860_MAC_ADDR_DW1,
1989 addr[4] | addr[5] << 8);
1990 }
1991
1992 /*
1993 * Send a command to the 8051 microcontroller unit.
1994 */
1995 static int
1996 rt2860_mcu_cmd(struct rt2860_softc *sc, uint8_t cmd, uint16_t arg)
1997 {
1998 int ntries;
1999
2000 for (ntries = 0; ntries < 100; ntries++) {
2001 if (!(RT2860_READ(sc, RT2860_H2M_MAILBOX) & RT2860_H2M_BUSY))
2002 break;
2003 DELAY(2);
2004 }
2005 if (ntries == 100)
2006 return (EIO);
2007
2008 RT2860_WRITE(sc, RT2860_H2M_MAILBOX,
2009 RT2860_H2M_BUSY | RT2860_TOKEN_NO_INTR << 16 | arg);
2010 RT2860_WRITE(sc, RT2860_HOST_CMD, cmd);
2011
2012 return (RT2860_SUCCESS);
2013 }
2014
2015 /*
2016 * Reading and writing from/to the BBP is different from RT2560 and RT2661.
2017 * We access the BBP through the 8051 microcontroller unit which means that
2018 * the microcode must be loaded first.
2019 */
2020 static uint8_t
2021 rt2860_mcu_bbp_read(struct rt2860_softc *sc, uint8_t reg)
2022 {
2023 uint32_t val;
2024 int ntries;
2025
2026 for (ntries = 0; ntries < 100; ntries++) {
2027 if (!(RT2860_READ(sc,
2028 RT2860_H2M_BBPAGENT) & RT2860_BBP_CSR_KICK))
2029 break;
2030 DELAY(1);
2031 }
2032 if (ntries == 100) {
2033 RWN_DEBUG(RT2860_DBG_FW, "rwn: rt2860_mcu_bbp_read():"
2034 "could not read from BBP through MCU\n");
2035 return (0);
2036 }
2037
2038 RT2860_WRITE(sc, RT2860_H2M_BBPAGENT, RT2860_BBP_RW_PARALLEL |
2039 RT2860_BBP_CSR_KICK | RT2860_BBP_CSR_READ | reg << 8);
2040
2041 (void) rt2860_mcu_cmd(sc, RT2860_MCU_CMD_BBP, 0);
2042 DELAY(1000);
2043
2044 for (ntries = 0; ntries < 100; ntries++) {
2045 val = RT2860_READ(sc, RT2860_H2M_BBPAGENT);
2046 if (!(val & RT2860_BBP_CSR_KICK))
2047 return (val & 0xff);
2048 DELAY(1);
2049 }
2050 RWN_DEBUG(RT2860_DBG_FW, "rwn: rt2860_mcu_bbp_read():"
2051 "could not read from BBP through MCU\n");
2052
2053 return (0);
2054 }
2055
2056 static void
2057 rt2860_mcu_bbp_write(struct rt2860_softc *sc, uint8_t reg, uint8_t val)
2058 {
2059 int ntries;
2060
2061 for (ntries = 0; ntries < 100; ntries++) {
2062 if (!(RT2860_READ(sc,
2063 RT2860_H2M_BBPAGENT) & RT2860_BBP_CSR_KICK))
2064 break;
2065 DELAY(1);
2066 }
2067 if (ntries == 100) {
2068 RWN_DEBUG(RT2860_DBG_FW, "rwn: rt2860_mcu_bbp_write():"
2069 "could not write to BBP through MCU\n");
2070 return;
2071 }
2072
2073 RT2860_WRITE(sc, RT2860_H2M_BBPAGENT, RT2860_BBP_RW_PARALLEL |
2074 RT2860_BBP_CSR_KICK | reg << 8 | val);
2075
2076 (void) rt2860_mcu_cmd(sc, RT2860_MCU_CMD_BBP, 0);
2077 DELAY(1000);
2078 }
2079
2080 static int
2081 rt2860_bbp_init(struct rt2860_softc *sc)
2082 {
2083 int i, ntries;
2084
2085 /* wait for BBP to wake up */
2086 for (ntries = 0; ntries < 20; ntries++) {
2087 uint8_t bbp0 = rt2860_mcu_bbp_read(sc, 0);
2088 if (bbp0 != 0 && bbp0 != 0xff)
2089 break;
2090 }
2091 if (ntries == 20) {
2092 RWN_DEBUG(RT2860_DBG_FW, "rwn: rt2860_bbp_init():"
2093 "timeout waiting for BBP to wake up\n");
2094 return (ETIMEDOUT);
2095 }
2096
2097 /* initialize BBP registers to default values */
2098 for (i = 0; i < 12; i++) {
2099 rt2860_mcu_bbp_write(sc, rt2860_def_bbp[i].reg,
2100 rt2860_def_bbp[i].val);
2101 }
2102
2103 /* fix BBP69 and BBP73 for RT2860C */
2104 if (sc->mac_rev == 0x28600100) {
2105 rt2860_mcu_bbp_write(sc, 69, 0x16);
2106 rt2860_mcu_bbp_write(sc, 73, 0x12);
2107 }
2108
2109 return (0);
2110 }
2111
2112 static void
2113 rt2860_rf_write(struct rt2860_softc *sc, uint8_t reg, uint32_t val)
2114 {
2115 uint32_t tmp;
2116 int ntries;
2117
2118 for (ntries = 0; ntries < 100; ntries++) {
2119 if (!(RT2860_READ(sc, RT2860_RF_CSR_CFG0) & RT2860_RF_REG_CTRL))
2120 break;
2121 DELAY(1);
2122 }
2123 if (ntries == 100) {
2124 RWN_DEBUG(RT2860_DBG_FW, "rwn: rwn_init()"
2125 "could not write to RF\n");
2126 return;
2127 }
2128
2129 /* RF registers are 24-bit on the RT2860 */
2130 tmp = RT2860_RF_REG_CTRL | 24 << RT2860_RF_REG_WIDTH_SHIFT |
2131 (val & 0x3fffff) << 2 | (reg & 3);
2132 RT2860_WRITE(sc, RT2860_RF_CSR_CFG0, tmp);
2133 }
2134
2135 static void
2136 rt2860_select_chan_group(struct rt2860_softc *sc, int group)
2137 {
2138 uint32_t tmp;
2139
2140 rt2860_mcu_bbp_write(sc, 62, 0x37 - sc->lna[group]);
2141 rt2860_mcu_bbp_write(sc, 63, 0x37 - sc->lna[group]);
2142 rt2860_mcu_bbp_write(sc, 64, 0x37 - sc->lna[group]);
2143 rt2860_mcu_bbp_write(sc, 82, (group == 0) ? 0x62 : 0xf2);
2144
2145 tmp = RT2860_READ(sc, RT2860_TX_BAND_CFG);
2146 tmp &= ~(RT2860_5G_BAND_SEL_N | RT2860_5G_BAND_SEL_P);
2147 tmp |= (group == 0) ? RT2860_5G_BAND_SEL_N : RT2860_5G_BAND_SEL_P;
2148 RT2860_WRITE(sc, RT2860_TX_BAND_CFG, tmp);
2149
2150 /* enable appropriate Power Amplifiers and Low Noise Amplifiers */
2151 tmp = RT2860_RFTR_EN | RT2860_TRSW_EN;
2152 if (group == 0) { /* 2GHz */
2153 tmp |= RT2860_PA_PE_G0_EN | RT2860_LNA_PE_G0_EN;
2154 if (sc->ntxchains > 1)
2155 tmp |= RT2860_PA_PE_G1_EN;
2156 if (sc->nrxchains > 1)
2157 tmp |= RT2860_LNA_PE_G1_EN;
2158 } else { /* 5GHz */
2159 tmp |= RT2860_PA_PE_A0_EN | RT2860_LNA_PE_A0_EN;
2160 if (sc->ntxchains > 1)
2161 tmp |= RT2860_PA_PE_A1_EN;
2162 if (sc->nrxchains > 1)
2163 tmp |= RT2860_LNA_PE_A1_EN;
2164 }
2165 RT2860_WRITE(sc, RT2860_TX_PIN_CFG, tmp);
2166
2167 rt2860_mcu_bbp_write(sc, 66, 0x2e + sc->lna[group]);
2168 }
2169 static void
2170 rt2860_set_chan(struct rt2860_softc *sc, struct ieee80211_channel *c)
2171 {
2172 struct ieee80211com *ic = &sc->sc_ic;
2173 const struct rfprog *rfprog = rt2860_rf2850;
2174 uint_t i, chan, group;
2175 uint8_t txpow1, txpow2;
2176 uint32_t r2, r3, r4;
2177
2178 chan = ieee80211_chan2ieee(ic, c);
2179 if (chan == 0 || chan == IEEE80211_CHAN_ANY) {
2180 RWN_DEBUG(RT2860_DBG_FW, "Unkonwn channel!\n");
2181 return;
2182 }
2183
2184 /* find the settings for this channel (we know it exists) */
2185 for (i = 0; rfprog[i].chan != chan; )
2186 i++;
2187
2188 r2 = rfprog[i].r2;
2189 if (sc->ntxchains == 1)
2190 r2 |= 1 << 12; /* 1T: disable Tx chain 2 */
2191 if (sc->nrxchains == 1)
2192 r2 |= 1 << 15 | 1 << 4; /* 1R: disable Rx chains 2 & 3 */
2193 else if (sc->nrxchains == 2)
2194 r2 |= 1 << 4; /* 2R: disable Rx chain 3 */
2195
2196 /* use Tx power values from EEPROM */
2197 txpow1 = sc->txpow1[i];
2198 txpow2 = sc->txpow2[i];
2199 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2200 txpow1 = txpow1 << 1 | 1;
2201 txpow2 = txpow2 << 1 | 1;
2202 }
2203 r3 = rfprog[i].r3 | txpow1 << 7;
2204 r4 = rfprog[i].r4 | sc->freq << 13 | txpow2 << 4;
2205
2206 rt2860_rf_write(sc, RAL_RF1, rfprog[i].r1);
2207 rt2860_rf_write(sc, RAL_RF2, r2);
2208 rt2860_rf_write(sc, RAL_RF3, r3);
2209 rt2860_rf_write(sc, RAL_RF4, r4);
2210
2211 DELAY(200);
2212
2213 rt2860_rf_write(sc, RAL_RF1, rfprog[i].r1);
2214 rt2860_rf_write(sc, RAL_RF2, r2);
2215 rt2860_rf_write(sc, RAL_RF3, r3 | 1);
2216 rt2860_rf_write(sc, RAL_RF4, r4);
2217
2218 DELAY(200);
2219
2220 rt2860_rf_write(sc, RAL_RF1, rfprog[i].r1);
2221 rt2860_rf_write(sc, RAL_RF2, r2);
2222 rt2860_rf_write(sc, RAL_RF3, r3);
2223 rt2860_rf_write(sc, RAL_RF4, r4);
2224
2225 /* 802.11a uses a 16 microseconds short interframe space */
2226 sc->sifs = IEEE80211_IS_CHAN_5GHZ(c) ? 16 : 10;
2227
2228 /* determine channel group */
2229 if (chan <= 14)
2230 group = 0;
2231 else if (chan <= 64)
2232 group = 1;
2233 else if (chan <= 128)
2234 group = 2;
2235 else
2236 group = 3;
2237
2238 /* XXX necessary only when group has changed! */
2239 rt2860_select_chan_group(sc, group);
2240
2241 DELAY(1000);
2242 }
2243
2244 static void
2245 rt2860_updateprot(struct ieee80211com *ic)
2246 {
2247 struct rt2860_softc *sc = (struct rt2860_softc *)ic;
2248 uint32_t tmp;
2249
2250 tmp = RT2860_RTSTH_EN | RT2860_PROT_NAV_SHORT | RT2860_TXOP_ALLOW_ALL;
2251 /* setup protection frame rate (MCS code) */
2252 tmp |= (ic->ic_curmode == IEEE80211_MODE_11A) ? 0 : 3;
2253
2254 /* CCK frames don't require protection */
2255 RT2860_WRITE(sc, RT2860_CCK_PROT_CFG, tmp);
2256
2257 if (ic->ic_flags & IEEE80211_F_USEPROT) {
2258 if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
2259 tmp |= RT2860_PROT_CTRL_RTS_CTS;
2260 else if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
2261 tmp |= RT2860_PROT_CTRL_CTS;
2262 }
2263 RT2860_WRITE(sc, RT2860_OFDM_PROT_CFG, tmp);
2264 }
2265
2266 static void
2267 rt2860_set_leds(struct rt2860_softc *sc, uint16_t which)
2268 {
2269 (void) rt2860_mcu_cmd(sc, RT2860_MCU_CMD_LEDS,
2270 which | (sc->leds & 0x7f));
2271 }
2272
2273 static int
2274 rt2860_init(struct rt2860_softc *sc)
2275 {
2276 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2277 struct ieee80211com *ic;
2278 int i, err, qid, ridx, ntries;
2279 uint8_t bbp1, bbp3;
2280 uint32_t tmp;
2281
2282 ic = &sc->sc_ic;
2283
2284 rt2860_stop(sc);
2285 tmp = RT2860_READ(sc, RT2860_WPDMA_GLO_CFG);
2286 tmp &= 0xff0;
2287 RT2860_WRITE(sc, RT2860_WPDMA_GLO_CFG, tmp | RT2860_TX_WB_DDONE);
2288
2289 RT2860_WRITE(sc, RT2860_WPDMA_RST_IDX, 0xffffffff);
2290
2291 /* PBF hardware reset */
2292 RT2860_WRITE(sc, RT2860_SYS_CTRL, 0xe1f);
2293 RT2860_WRITE(sc, RT2860_SYS_CTRL, 0xe00);
2294
2295 if (!(sc->sc_flags & RT2860_FWLOADED)) {
2296 if ((err = rt2860_load_microcode(sc)) != 0) {
2297 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_init(): "
2298 "could not load 8051 microcode\n");
2299 rt2860_stop(sc);
2300 return (err);
2301 }
2302 RT2860_GLOCK(sc);
2303 sc->sc_flags |= RT2860_FWLOADED;
2304 RT2860_GUNLOCK(sc);
2305 }
2306
2307 rt2860_set_macaddr(sc, ic->ic_macaddr);
2308
2309 /* init Tx power for all Tx rates (from EEPROM) */
2310 for (ridx = 0; ridx < 5; ridx++) {
2311 if (sc->txpow20mhz[ridx] == 0xffffffff)
2312 continue;
2313 RT2860_WRITE(sc, RT2860_TX_PWR_CFG(ridx), sc->txpow20mhz[ridx]);
2314 }
2315
2316 for (ntries = 0; ntries < 100; ntries++) {
2317 tmp = RT2860_READ(sc, RT2860_WPDMA_GLO_CFG);
2318 if ((tmp & (RT2860_TX_DMA_BUSY | RT2860_RX_DMA_BUSY)) == 0)
2319 break;
2320 DELAY(1000);
2321 }
2322 if (ntries == 100) {
2323 RWN_DEBUG(RT2860_DBG_DMA, "rwn: rt2860_init():"
2324 "timeout waiting for DMA engine\n");
2325 rt2860_stop(sc);
2326 return (ETIMEDOUT);
2327 }
2328 tmp &= 0xff0;
2329 RT2860_WRITE(sc, RT2860_WPDMA_GLO_CFG, tmp | RT2860_TX_WB_DDONE);
2330
2331 /* reset Rx ring and all 6 Tx rings */
2332 RT2860_WRITE(sc, RT2860_WPDMA_RST_IDX, 0x1003f);
2333
2334 /* PBF hardware reset */
2335 RT2860_WRITE(sc, RT2860_SYS_CTRL, 0xe1f);
2336 RT2860_WRITE(sc, RT2860_SYS_CTRL, 0xe00);
2337
2338 RT2860_WRITE(sc, RT2860_MAC_SYS_CTRL,
2339 RT2860_BBP_HRST | RT2860_MAC_SRST);
2340 RT2860_WRITE(sc, RT2860_MAC_SYS_CTRL, 0);
2341
2342 for (i = 0; i < N(rt2860_def_mac); i++)
2343 RT2860_WRITE(sc, rt2860_def_mac[i].reg, rt2860_def_mac[i].val);
2344
2345 /* wait while MAC is busy */
2346 for (ntries = 0; ntries < 100; ntries++) {
2347 if (!(RT2860_READ(sc, RT2860_MAC_STATUS_REG) &
2348 (RT2860_RX_STATUS_BUSY | RT2860_TX_STATUS_BUSY)))
2349 break;
2350 DELAY(1000);
2351 }
2352 if (ntries == 100) {
2353 RWN_DEBUG(RT2860_DBG_FW, "rwn: rt2860_init():"
2354 "timeout waiting for MAC\n");
2355 rt2860_stop(sc);
2356 return (ETIMEDOUT);
2357 }
2358
2359 /* clear Host to MCU mailbox */
2360 RT2860_WRITE(sc, RT2860_H2M_BBPAGENT, 0);
2361 RT2860_WRITE(sc, RT2860_H2M_MAILBOX, 0);
2362
2363 if ((err = rt2860_bbp_init(sc)) != 0) {
2364 rt2860_stop(sc);
2365 return (err);
2366 }
2367
2368 /* init Tx rings (4 EDCAs + HCCA + Mgt) */
2369 for (qid = 0; qid < 6; qid++) {
2370 RT2860_WRITE(sc, RT2860_TX_BASE_PTR(qid), sc->txq[qid].paddr);
2371 RT2860_WRITE(sc, RT2860_TX_MAX_CNT(qid), RT2860_TX_RING_COUNT);
2372 RT2860_WRITE(sc, RT2860_TX_CTX_IDX(qid), 0);
2373 }
2374
2375 /* init Rx ring */
2376 RT2860_WRITE(sc, RT2860_RX_BASE_PTR, sc->rxq.paddr);
2377 RT2860_WRITE(sc, RT2860_RX_MAX_CNT, RT2860_RX_RING_COUNT);
2378 RT2860_WRITE(sc, RT2860_RX_CALC_IDX, RT2860_RX_RING_COUNT - 1);
2379
2380 /* setup maximum buffer sizes */
2381 RT2860_WRITE(sc, RT2860_MAX_LEN_CFG, 1 << 12 |
2382 (sc->sc_dmabuf_size - sizeof (struct rt2860_rxwi) - 2));
2383
2384 for (ntries = 0; ntries < 100; ntries++) {
2385 tmp = RT2860_READ(sc, RT2860_WPDMA_GLO_CFG);
2386 if ((tmp & (RT2860_TX_DMA_BUSY | RT2860_RX_DMA_BUSY)) == 0)
2387 break;
2388 DELAY(1000);
2389 }
2390 if (ntries == 100) {
2391 RWN_DEBUG(RT2860_DBG_DMA, "rwn: rt2860_init():"
2392 "timeout waiting for DMA engine\n");
2393 rt2860_stop(sc);
2394 return (ETIMEDOUT);
2395 }
2396 tmp &= 0xff0;
2397 RT2860_WRITE(sc, RT2860_WPDMA_GLO_CFG, tmp | RT2860_TX_WB_DDONE);
2398
2399 /* disable interrupts mitigation */
2400 RT2860_WRITE(sc, RT2860_DELAY_INT_CFG, 0);
2401
2402 /* write vendor-specific BBP values (from EEPROM) */
2403 for (i = 0; i < 8; i++) {
2404 if (sc->bbp[i].reg == 0 || sc->bbp[i].reg == 0xff)
2405 continue;
2406 rt2860_mcu_bbp_write(sc, sc->bbp[i].reg, sc->bbp[i].val);
2407 }
2408
2409 /* send LEDs operating mode to microcontroller */
2410 (void) rt2860_mcu_cmd(sc, RT2860_MCU_CMD_LED1, sc->led[0]);
2411 (void) rt2860_mcu_cmd(sc, RT2860_MCU_CMD_LED2, sc->led[1]);
2412 (void) rt2860_mcu_cmd(sc, RT2860_MCU_CMD_LED3, sc->led[2]);
2413
2414 /* disable non-existing Rx chains */
2415 bbp3 = rt2860_mcu_bbp_read(sc, 3);
2416 bbp3 &= ~(1 << 3 | 1 << 4);
2417 if (sc->nrxchains == 2)
2418 bbp3 |= 1 << 3;
2419 else if (sc->nrxchains == 3)
2420 bbp3 |= 1 << 4;
2421 rt2860_mcu_bbp_write(sc, 3, bbp3);
2422
2423 /* disable non-existing Tx chains */
2424 bbp1 = rt2860_mcu_bbp_read(sc, 1);
2425 if (sc->ntxchains == 1)
2426 bbp1 &= ~(1 << 3 | 1 << 4);
2427 rt2860_mcu_bbp_write(sc, 1, bbp1);
2428
2429 /* select default channel */
2430 rt2860_set_chan(sc, ic->ic_curchan);
2431
2432 /* XXX not clear what the following 8051 command does.. */
2433 (void) rt2860_mcu_cmd(sc, RT2860_MCU_CMD_BOOT, 0);
2434
2435 /* set RTS threshold */
2436 tmp = RT2860_READ(sc, RT2860_TX_RTS_CFG);
2437 tmp &= ~0xffff00;
2438 tmp |= ic->ic_rtsthreshold << 8;
2439
2440 /* setup initial protection mode */
2441 sc->sc_ic_flags = ic->ic_flags;
2442 rt2860_updateprot(ic);
2443
2444 /* enable Tx/Rx DMA engine */
2445 RT2860_WRITE(sc, RT2860_MAC_SYS_CTRL, RT2860_MAC_TX_EN);
2446 for (ntries = 0; ntries < 200; ntries++) {
2447 tmp = RT2860_READ(sc, RT2860_WPDMA_GLO_CFG);
2448 if ((tmp & (RT2860_TX_DMA_BUSY | RT2860_RX_DMA_BUSY)) == 0)
2449 break;
2450 DELAY(1000);
2451 }
2452 if (ntries == 200) {
2453 RWN_DEBUG(RT2860_DBG_DMA, "rwn: rt2860_int():"
2454 "timeout waiting for DMA engine\n");
2455 rt2860_stop(sc);
2456 return (ETIMEDOUT);
2457 }
2458
2459 DELAY(50);
2460
2461 tmp |= RT2860_TX_WB_DDONE | RT2860_RX_DMA_EN | RT2860_TX_DMA_EN |
2462 RT2860_WPDMA_BT_SIZE64 << RT2860_WPDMA_BT_SIZE_SHIFT;
2463 RT2860_WRITE(sc, RT2860_WPDMA_GLO_CFG, tmp);
2464
2465 /* turn radio LED on */
2466 rt2860_set_leds(sc, RT2860_LED_RADIO);
2467
2468 /* set Rx filter */
2469 tmp = RT2860_DROP_CRC_ERR | RT2860_DROP_PHY_ERR;
2470 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2471 tmp |= RT2860_DROP_UC_NOME | RT2860_DROP_DUPL |
2472 RT2860_DROP_CTS | RT2860_DROP_BA | RT2860_DROP_ACK |
2473 RT2860_DROP_VER_ERR | RT2860_DROP_CTRL_RSV |
2474 RT2860_DROP_CFACK | RT2860_DROP_CFEND;
2475 if (ic->ic_opmode == IEEE80211_M_STA)
2476 tmp |= RT2860_DROP_RTS | RT2860_DROP_PSPOLL;
2477 }
2478 RT2860_WRITE(sc, RT2860_RX_FILTR_CFG, tmp);
2479
2480 RT2860_WRITE(sc, RT2860_MAC_SYS_CTRL,
2481 RT2860_MAC_RX_EN | RT2860_MAC_TX_EN);
2482
2483 /* clear pending interrupts */
2484 RT2860_WRITE(sc, RT2860_INT_STATUS, 0xffffffff);
2485 /* enable interrupts */
2486 RT2860_WRITE(sc, RT2860_INT_MASK, 0x3fffc);
2487
2488 if (sc->sc_flags & RT2860_ADVANCED_PS)
2489 (void) rt2860_mcu_cmd(sc, RT2860_MCU_CMD_PSLEVEL, sc->pslevel);
2490
2491 return (DDI_SUCCESS);
2492 }
2493
2494 static int
2495 rt2860_quiesce(dev_info_t *dip)
2496 {
2497 struct rt2860_softc *sc;
2498
2499 sc = ddi_get_soft_state(rt2860_soft_state_p, ddi_get_instance(dip));
2500 if (sc == NULL)
2501 return (DDI_FAILURE);
2502
2503 #ifdef DEBUG
2504 rt2860_dbg_flags = 0;
2505 #endif
2506
2507 /*
2508 * No more blocking is allowed while we are in quiesce(9E) entry point
2509 */
2510 sc->sc_flags |= RT2860_F_QUIESCE;
2511
2512 /*
2513 * Disable and mask all interrupts
2514 */
2515 rt2860_stop(sc);
2516 return (DDI_SUCCESS);
2517 }
2518
2519 static void
2520 rt2860_stop(struct rt2860_softc *sc)
2521 {
2522 int qid;
2523 uint32_t tmp;
2524
2525 /* by pass if it's quiesced */
2526 if (!(sc->sc_flags & RT2860_F_QUIESCE))
2527 RT2860_GLOCK(sc);
2528 if (sc->sc_flags == RT2860_F_RUNNING)
2529 rt2860_set_leds(sc, 0); /* turn all LEDs off */
2530 sc->sc_tx_timer = 0;
2531 /* by pass if it's quiesced */
2532 if (!(sc->sc_flags & RT2860_F_QUIESCE))
2533 RT2860_GUNLOCK(sc);
2534
2535 /* clear RX WCID search table */
2536 rt2860_set_region_4(sc, RT2860_WCID_ENTRY(0), 0, 512);
2537 /* clear pairwise key table */
2538 rt2860_set_region_4(sc, RT2860_PKEY(0), 0, 2048);
2539 /* clear IV/EIV table */
2540 rt2860_set_region_4(sc, RT2860_IVEIV(0), 0, 512);
2541 /* clear WCID attribute table */
2542 rt2860_set_region_4(sc, RT2860_WCID_ATTR(0), 0, 256);
2543 /* clear shared key table */
2544 rt2860_set_region_4(sc, RT2860_SKEY(0, 0), 0, 8 * 32);
2545 /* clear shared key mode */
2546 rt2860_set_region_4(sc, RT2860_SKEY_MODE_0_7, 0, 4);
2547
2548 /* disable interrupts */
2549 RT2860_WRITE(sc, RT2860_INT_MASK, 0);
2550
2551 /* disable Rx */
2552 tmp = RT2860_READ(sc, RT2860_MAC_SYS_CTRL);
2553 tmp &= ~(RT2860_MAC_RX_EN | RT2860_MAC_TX_EN);
2554 RT2860_WRITE(sc, RT2860_MAC_SYS_CTRL, tmp);
2555
2556 /* reset adapter */
2557 RT2860_WRITE(sc, RT2860_MAC_SYS_CTRL,
2558 RT2860_BBP_HRST | RT2860_MAC_SRST);
2559 RT2860_WRITE(sc, RT2860_MAC_SYS_CTRL, 0);
2560
2561 /* reset Tx and Rx rings (and reclaim TXWIs) */
2562 for (qid = 0; qid < 6; qid++)
2563 rt2860_reset_tx_ring(sc, &sc->txq[qid]);
2564 rt2860_reset_rx_ring(sc, &sc->rxq);
2565
2566 /* by pass if it's quiesced */
2567 if (!(sc->sc_flags & RT2860_F_QUIESCE))
2568 RT2860_GLOCK(sc);
2569 sc->sc_flags &= ~RT2860_UPD_BEACON;
2570 /* by pass if it's quiesced */
2571 if (!(sc->sc_flags & RT2860_F_QUIESCE))
2572 RT2860_GUNLOCK(sc);
2573 }
2574
2575 static int
2576 rt2860_m_start(void *arg)
2577 {
2578 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
2579 struct ieee80211com *ic = &sc->sc_ic;
2580 int err;
2581
2582 err = rt2860_init(sc);
2583 if (err != DDI_SUCCESS) {
2584 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_m_start():"
2585 "Hardware initialization failed\n");
2586 goto fail1;
2587 }
2588
2589 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
2590
2591 RT2860_GLOCK(sc);
2592 sc->sc_flags |= RT2860_F_RUNNING;
2593 RT2860_GUNLOCK(sc);
2594
2595 return (err);
2596 fail1:
2597 rt2860_stop(sc);
2598 return (err);
2599 }
2600
2601 static void
2602 rt2860_m_stop(void *arg)
2603 {
2604 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
2605
2606 (void) rt2860_stop(sc);
2607
2608 ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1);
2609
2610 RT2860_GLOCK(sc);
2611 sc->sc_flags &= ~RT2860_F_RUNNING;
2612 RT2860_GUNLOCK(sc);
2613 }
2614
2615 static void
2616 rt2860_m_ioctl(void* arg, queue_t *wq, mblk_t *mp)
2617 {
2618 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
2619 struct ieee80211com *ic = &sc->sc_ic;
2620 int err;
2621
2622 err = ieee80211_ioctl(ic, wq, mp);
2623 RT2860_GLOCK(sc);
2624 if (err == ENETRESET) {
2625 if (ic->ic_des_esslen) {
2626 if (RT2860_IS_RUNNING(sc)) {
2627 RT2860_GUNLOCK(sc);
2628 (void) rt2860_init(sc);
2629 (void) ieee80211_new_state(ic,
2630 IEEE80211_S_SCAN, -1);
2631 RT2860_GLOCK(sc);
2632 }
2633 }
2634 }
2635 RT2860_GUNLOCK(sc);
2636 }
2637
2638 /*
2639 * Call back function for get/set proporty
2640 */
2641 static int
2642 rt2860_m_getprop(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_num,
2643 uint_t wldp_length, void *wldp_buf)
2644 {
2645 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
2646 int err = 0;
2647
2648 err = ieee80211_getprop(&sc->sc_ic, pr_name, wldp_pr_num,
2649 wldp_length, wldp_buf);
2650
2651 return (err);
2652 }
2653
2654 static void
2655 rt2860_m_propinfo(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_num,
2656 mac_prop_info_handle_t prh)
2657 {
2658 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
2659
2660 ieee80211_propinfo(&sc->sc_ic, pr_name, wldp_pr_num, prh);
2661 }
2662
2663 static int
2664 rt2860_m_setprop(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_num,
2665 uint_t wldp_length, const void *wldp_buf)
2666 {
2667 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
2668 ieee80211com_t *ic = &sc->sc_ic;
2669 int err;
2670
2671 err = ieee80211_setprop(ic, pr_name, wldp_pr_num, wldp_length,
2672 wldp_buf);
2673 RT2860_GLOCK(sc);
2674 if (err == ENETRESET) {
2675 if (ic->ic_des_esslen) {
2676 if (RT2860_IS_RUNNING(sc)) {
2677 RT2860_GUNLOCK(sc);
2678 (void) rt2860_init(sc);
2679 (void) ieee80211_new_state(ic,
2680 IEEE80211_S_SCAN, -1);
2681 RT2860_GLOCK(sc);
2682 }
2683 }
2684 err = 0;
2685 }
2686 RT2860_GUNLOCK(sc);
2687 return (err);
2688 }
2689
2690 static mblk_t *
2691 rt2860_m_tx(void *arg, mblk_t *mp)
2692 {
2693 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
2694 struct ieee80211com *ic = &sc->sc_ic;
2695 mblk_t *next;
2696
2697 if (RT2860_IS_SUSPEND(sc)) {
2698 freemsgchain(mp);
2699 return (NULL);
2700 }
2701
2702 /*
2703 * No data frames go out unless we're associated; this
2704 * should not happen as the 802.11 layer does not enable
2705 * the xmit queue until we enter the RUN state.
2706 */
2707 if (ic->ic_state != IEEE80211_S_RUN) {
2708 RWN_DEBUG(RT2860_DBG_TX, "rwn: rt2860_tx_data(): "
2709 "discard, state %u\n", ic->ic_state);
2710 freemsgchain(mp);
2711 return (NULL);
2712 }
2713
2714 while (mp != NULL) {
2715 next = mp->b_next;
2716 mp->b_next = NULL;
2717 if (rt2860_send(ic, mp, IEEE80211_FC0_TYPE_DATA) !=
2718 DDI_SUCCESS) {
2719 mp->b_next = next;
2720 break;
2721 }
2722 mp = next;
2723 }
2724 return (mp);
2725 }
2726
2727 /*ARGSUSED*/
2728 static int
2729 rt2860_m_unicst(void *arg, const uint8_t *macaddr)
2730 {
2731 return (ENOTSUP);
2732 }
2733
2734 /*ARGSUSED*/
2735 static int
2736 rt2860_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
2737 {
2738 return (ENOTSUP);
2739 }
2740
2741 /*ARGSUSED*/
2742 static int
2743 rt2860_m_promisc(void *arg, boolean_t on)
2744 {
2745 return (0);
2746 }
2747
2748 static int
2749 rt2860_m_stat(void *arg, uint_t stat, uint64_t *val)
2750 {
2751 struct rt2860_softc *sc = (struct rt2860_softc *)arg;
2752 ieee80211com_t *ic = &sc->sc_ic;
2753 ieee80211_node_t *ni = ic->ic_bss;
2754 struct ieee80211_rateset *rs = &ni->in_rates;
2755
2756 RT2860_GLOCK(sc);
2757 switch (stat) {
2758 case MAC_STAT_IFSPEED:
2759 *val = ((ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) ?
2760 (rs->ir_rates[ni->in_txrate] & IEEE80211_RATE_VAL)
2761 : ic->ic_fixed_rate) / 2 * 1000000;
2762 break;
2763 case MAC_STAT_NOXMTBUF:
2764 *val = sc->sc_tx_nobuf;
2765 break;
2766 case MAC_STAT_NORCVBUF:
2767 *val = sc->sc_rx_nobuf;
2768 break;
2769 case MAC_STAT_IERRORS:
2770 *val = sc->sc_rx_err;
2771 break;
2772 case MAC_STAT_RBYTES:
2773 *val = ic->ic_stats.is_rx_bytes;
2774 break;
2775 case MAC_STAT_IPACKETS:
2776 *val = ic->ic_stats.is_rx_frags;
2777 break;
2778 case MAC_STAT_OBYTES:
2779 *val = ic->ic_stats.is_tx_bytes;
2780 break;
2781 case MAC_STAT_OPACKETS:
2782 *val = ic->ic_stats.is_tx_frags;
2783 break;
2784 case MAC_STAT_OERRORS:
2785 case WIFI_STAT_TX_FAILED:
2786 *val = sc->sc_tx_err;
2787 break;
2788 case WIFI_STAT_TX_RETRANS:
2789 *val = sc->sc_tx_retries;
2790 break;
2791 case WIFI_STAT_FCS_ERRORS:
2792 case WIFI_STAT_WEP_ERRORS:
2793 case WIFI_STAT_TX_FRAGS:
2794 case WIFI_STAT_MCAST_TX:
2795 case WIFI_STAT_RTS_SUCCESS:
2796 case WIFI_STAT_RTS_FAILURE:
2797 case WIFI_STAT_ACK_FAILURE:
2798 case WIFI_STAT_RX_FRAGS:
2799 case WIFI_STAT_MCAST_RX:
2800 case WIFI_STAT_RX_DUPS:
2801 RT2860_GUNLOCK(sc);
2802 return (ieee80211_stat(ic, stat, val));
2803 default:
2804 RT2860_GUNLOCK(sc);
2805 return (ENOTSUP);
2806 }
2807 RT2860_GUNLOCK(sc);
2808
2809 return (0);
2810 }
2811
2812 static int
2813 rt2860_attach(dev_info_t *devinfo, ddi_attach_cmd_t cmd)
2814 {
2815 struct rt2860_softc *sc;
2816 struct ieee80211com *ic;
2817 int i, err, qid, ntries, instance;
2818 uint8_t cachelsz;
2819 uint16_t command, vendor_id, device_id;
2820 char strbuf[32];
2821 wifi_data_t wd = { 0 };
2822 mac_register_t *macp;
2823
2824 switch (cmd) {
2825 case DDI_ATTACH:
2826 break;
2827 case DDI_RESUME:
2828 sc = ddi_get_soft_state(rt2860_soft_state_p,
2829 ddi_get_instance(devinfo));
2830 ASSERT(sc != NULL);
2831 RT2860_GLOCK(sc);
2832 sc->sc_flags &= ~RT2860_F_SUSPEND;
2833 RT2860_GUNLOCK(sc);
2834 if (RT2860_IS_RUNNING(sc))
2835 (void) rt2860_init(sc);
2836 RWN_DEBUG(RT2860_DBG_RESUME, "rwn: rt2860_attach(): "
2837 "resume now\n");
2838 return (DDI_SUCCESS);
2839 default:
2840 return (DDI_FAILURE);
2841 }
2842
2843 instance = ddi_get_instance(devinfo);
2844
2845 err = ddi_soft_state_zalloc(rt2860_soft_state_p, instance);
2846 if (err != DDI_SUCCESS) {
2847 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
2848 "unable to alloc soft_state_p\n");
2849 return (err);
2850 }
2851
2852 sc = ddi_get_soft_state(rt2860_soft_state_p, instance);
2853 ic = (ieee80211com_t *)&sc->sc_ic;
2854 sc->sc_dev = devinfo;
2855
2856 /* pci configuration */
2857 err = ddi_regs_map_setup(devinfo, 0, &sc->sc_cfg_base, 0, 0,
2858 &rwn_csr_accattr, &sc->sc_cfg_handle);
2859 if (err != DDI_SUCCESS) {
2860 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
2861 "ddi_regs_map_setup() failed");
2862 goto fail1;
2863 }
2864
2865 cachelsz = ddi_get8(sc->sc_cfg_handle,
2866 (uint8_t *)(sc->sc_cfg_base + PCI_CONF_CACHE_LINESZ));
2867 if (cachelsz == 0)
2868 cachelsz = 0x10;
2869 sc->sc_cachelsz = cachelsz << 2;
2870 sc->sc_dmabuf_size = roundup(IEEE80211_MAX_LEN, sc->sc_cachelsz);
2871
2872 vendor_id = ddi_get16(sc->sc_cfg_handle,
2873 (uint16_t *)((uintptr_t)(sc->sc_cfg_base) + PCI_CONF_VENID));
2874 device_id = ddi_get16(sc->sc_cfg_handle,
2875 (uint16_t *)((uintptr_t)(sc->sc_cfg_base) + PCI_CONF_DEVID));
2876 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
2877 "vendor 0x%x, device id 0x%x, cache size %d\n",
2878 vendor_id, device_id, cachelsz);
2879
2880 /*
2881 * Enable response to memory space accesses,
2882 * and enabe bus master.
2883 */
2884 command = PCI_COMM_MAE | PCI_COMM_ME;
2885 ddi_put16(sc->sc_cfg_handle,
2886 (uint16_t *)((uintptr_t)(sc->sc_cfg_base) + PCI_CONF_COMM),
2887 command);
2888 ddi_put8(sc->sc_cfg_handle,
2889 (uint8_t *)(sc->sc_cfg_base + PCI_CONF_LATENCY_TIMER), 0xa8);
2890 ddi_put8(sc->sc_cfg_handle,
2891 (uint8_t *)(sc->sc_cfg_base + PCI_CONF_ILINE), 0x10);
2892
2893 /* pci i/o space */
2894 err = ddi_regs_map_setup(devinfo, 1,
2895 &sc->sc_io_base, 0, 0, &rwn_csr_accattr, &sc->sc_io_handle);
2896 if (err != DDI_SUCCESS) {
2897 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
2898 "ddi_regs_map_setup() failed");
2899 goto fail2;
2900 }
2901 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
2902 "PCI configuration is done successfully\n");
2903
2904 sc->amrr.amrr_min_success_threshold = 1;
2905 sc->amrr.amrr_max_success_threshold = 15;
2906
2907 /* wait for NIC to initialize */
2908 for (ntries = 0; ntries < 100; ntries++) {
2909 sc->mac_rev = RT2860_READ(sc, RT2860_ASIC_VER_ID);
2910 if (sc->mac_rev != 0 && sc->mac_rev != 0xffffffff)
2911 break;
2912 DELAY(10);
2913 }
2914 if (ntries == 100) {
2915 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
2916 "timeout waiting for NIC initialize\n");
2917 return (DDI_FAILURE);
2918 }
2919
2920 if ((sc->mac_rev >> 16) != 0x2860 &&
2921 (device_id == PRODUCT_RALINK_RT2890 ||
2922 device_id == PRODUCT_RALINK_RT2790 ||
2923 device_id == PRODUCT_AWT_RT2890))
2924 sc->sc_flags |= RT2860_ADVANCED_PS;
2925
2926 /* retrieve RF rev. no and various other things from EEPROM */
2927 (void) rt2860_read_eeprom(sc);
2928 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
2929 "MAC/BBP RT%X (rev 0x%04X), RF %s (%dT%dR)\n",
2930 sc->mac_rev >> 16, sc->mac_rev & 0xffff,
2931 rt2860_get_rf(sc->rf_rev), sc->ntxchains, sc->nrxchains);
2932
2933 /*
2934 * Allocate Tx (4 EDCAs + HCCA + Mgt) and Rx rings.
2935 */
2936 for (qid = 0; qid < 6; qid++) {
2937 if ((err = rt2860_alloc_tx_ring(sc, &sc->txq[qid])) != 0) {
2938 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
2939 "could not allocate Tx ring %d\n", qid);
2940 goto fail3;
2941 }
2942 }
2943
2944 if ((err = rt2860_alloc_rx_ring(sc, &sc->rxq)) != 0) {
2945 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
2946 "could not allocte Rx ring\n");
2947 goto fail4;
2948 }
2949
2950 if ((err = rt2860_alloc_tx_pool(sc)) != 0) {
2951 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
2952 "could not allocte Tx pool\n");
2953 goto fail5;
2954 }
2955
2956 mutex_init(&sc->sc_genlock, NULL, MUTEX_DRIVER, NULL);
2957 mutex_init(&sc->sc_txlock, NULL, MUTEX_DRIVER, NULL);
2958 mutex_init(&sc->sc_rxlock, NULL, MUTEX_DRIVER, NULL);
2959
2960 /* mgmt ring is broken on RT2860C, use EDCA AC VO ring instead */
2961 sc->mgtqid = (sc->mac_rev == 0x28600100) ? EDCA_AC_VO : 5;
2962 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach():"
2963 "mgtqid = %x\n", sc->mgtqid);
2964
2965 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
2966 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
2967 ic->ic_state = IEEE80211_S_INIT;
2968
2969 /* set device capabilities */
2970 ic->ic_caps =
2971 IEEE80211_C_TXPMGT | /* tx power management */
2972 IEEE80211_C_SHPREAMBLE | /* short preamble supported */
2973 IEEE80211_C_SHSLOT; /* short slot time supported */
2974
2975 /* WPA/WPA2 support */
2976 ic->ic_caps |= IEEE80211_C_WPA; /* Support WPA/WPA2 */
2977
2978 /* set supported .11b and .11g rates */
2979 ic->ic_sup_rates[IEEE80211_MODE_11B] = rt2860_rateset_11b;
2980 ic->ic_sup_rates[IEEE80211_MODE_11G] = rt2860_rateset_11g;
2981
2982 /* set supported .11b and .11g channels (1 through 14) */
2983 for (i = 1; i <= 14; i++) {
2984 ic->ic_sup_channels[i].ich_freq =
2985 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
2986 ic->ic_sup_channels[i].ich_flags =
2987 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
2988 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
2989 }
2990
2991 ic->ic_maxrssi = 63;
2992 ic->ic_xmit = rt2860_send;
2993
2994 ieee80211_attach(ic);
2995
2996 /* register WPA door */
2997 ieee80211_register_door(ic, ddi_driver_name(devinfo),
2998 ddi_get_instance(devinfo));
2999
3000 /* override state transition machine */
3001 sc->sc_newstate = ic->ic_newstate;
3002 ic->ic_newstate = rt2860_newstate;
3003 ieee80211_media_init(ic);
3004 ic->ic_def_txkey = 0;
3005
3006 err = ddi_add_softintr(devinfo, DDI_SOFTINT_LOW,
3007 &sc->sc_softintr_hdl, NULL, 0, rt2860_softintr, (caddr_t)sc);
3008 if (err != DDI_SUCCESS) {
3009 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
3010 "ddi_add_softintr() failed");
3011 goto fail8;
3012 }
3013
3014 err = ddi_get_iblock_cookie(devinfo, 0, &sc->sc_iblock);
3015 if (err != DDI_SUCCESS) {
3016 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
3017 "Can not get iblock cookie for INT\n");
3018 goto fail7;
3019 }
3020
3021 err = ddi_add_intr(devinfo, 0, NULL, NULL, rt2860_intr, (caddr_t)sc);
3022 if (err != DDI_SUCCESS) {
3023 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
3024 "unable to add device interrupt handler\n");
3025 goto fail7;
3026 }
3027
3028 /*
3029 * Provide initial settings for the WiFi plugin; whenever this
3030 * information changes, we need to call mac_plugindata_update()
3031 */
3032 wd.wd_opmode = ic->ic_opmode;
3033 wd.wd_secalloc = WIFI_SEC_NONE;
3034 IEEE80211_ADDR_COPY(wd.wd_bssid, ic->ic_bss->in_bssid);
3035
3036 if ((macp = mac_alloc(MAC_VERSION)) == NULL) {
3037 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
3038 "MAC version mismatch\n");
3039 goto fail9;
3040 }
3041
3042 macp->m_type_ident = MAC_PLUGIN_IDENT_WIFI;
3043 macp->m_driver = sc;
3044 macp->m_dip = devinfo;
3045 macp->m_src_addr = ic->ic_macaddr;
3046 macp->m_callbacks = &rt2860_m_callbacks;
3047 macp->m_min_sdu = 0;
3048 macp->m_max_sdu = IEEE80211_MTU;
3049 macp->m_pdata = &wd;
3050 macp->m_pdata_size = sizeof (wd);
3051
3052 err = mac_register(macp, &ic->ic_mach);
3053 mac_free(macp);
3054 if (err != 0) {
3055 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach(): "
3056 "mac_register err %x\n", err);
3057 goto fail9;
3058 }
3059
3060 /*
3061 * Create minor node of type DDI_NT_NET_WIFI
3062 */
3063 (void) snprintf(strbuf, sizeof (strbuf), "%s%d",
3064 "rwn", instance);
3065 err = ddi_create_minor_node(devinfo, strbuf, S_IFCHR,
3066 instance + 1, DDI_NT_NET_WIFI, 0);
3067
3068 /*
3069 * Notify link is down now
3070 */
3071 mac_link_update(ic->ic_mach, LINK_STATE_DOWN);
3072
3073 sc->sc_flags &= ~RT2860_F_RUNNING;
3074
3075 RWN_DEBUG(RT2860_DBG_MSG, "rwn: rt2860_attach() successfully.\n");
3076 return (DDI_SUCCESS);
3077 fail9:
3078 ddi_remove_softintr(sc->sc_softintr_hdl);
3079 fail8:
3080 ddi_remove_intr(devinfo, 0, sc->sc_iblock);
3081 fail7:
3082 mutex_destroy(&sc->sc_genlock);
3083 mutex_destroy(&sc->sc_txlock);
3084 mutex_destroy(&sc->sc_rxlock);
3085 fail6:
3086 rt2860_free_tx_pool(sc);
3087 fail5:
3088 rt2860_free_rx_ring(sc, &sc->rxq);
3089 fail4:
3090 while (--qid >= 0)
3091 rt2860_free_tx_ring(sc, &sc->txq[qid]);
3092 fail3:
3093 ddi_regs_map_free(&sc->sc_io_handle);
3094 fail2:
3095 ddi_regs_map_free(&sc->sc_cfg_handle);
3096 fail1:
3097 return (err);
3098 }
3099
3100 static int
3101 rt2860_detach(dev_info_t *devinfo, ddi_detach_cmd_t cmd)
3102 {
3103 struct rt2860_softc *sc;
3104 int qid;
3105
3106 sc = ddi_get_soft_state(rt2860_soft_state_p, ddi_get_instance(devinfo));
3107
3108 switch (cmd) {
3109 case DDI_DETACH:
3110 break;
3111 case DDI_SUSPEND:
3112 if (RT2860_IS_RUNNING(sc))
3113 rt2860_stop(sc);
3114 RT2860_GLOCK(sc);
3115 sc->sc_flags &= ~RT2860_FWLOADED;
3116 sc->sc_flags |= RT2860_F_SUSPEND;
3117 RT2860_GUNLOCK(sc);
3118 RWN_DEBUG(RT2860_DBG_RESUME, "rwn: rt2860_detach(): "
3119 "suspend now\n");
3120 return (DDI_SUCCESS);
3121 default:
3122 return (DDI_FAILURE);
3123 }
3124
3125 if (mac_disable(sc->sc_ic.ic_mach) != 0)
3126 return (DDI_FAILURE);
3127
3128 rt2860_stop(sc);
3129
3130 /*
3131 * Unregister from the MAC layer subsystem
3132 */
3133 (void) mac_unregister(sc->sc_ic.ic_mach);
3134
3135 ddi_remove_intr(devinfo, 0, sc->sc_iblock);
3136 ddi_remove_softintr(sc->sc_softintr_hdl);
3137
3138 /*
3139 * detach ieee80211 layer
3140 */
3141 ieee80211_detach(&sc->sc_ic);
3142
3143 rt2860_free_tx_pool(sc);
3144 rt2860_free_rx_ring(sc, &sc->rxq);
3145 for (qid = 0; qid < 6; qid++)
3146 rt2860_free_tx_ring(sc, &sc->txq[qid]);
3147
3148 ddi_regs_map_free(&sc->sc_io_handle);
3149
3150 mutex_destroy(&sc->sc_genlock);
3151 mutex_destroy(&sc->sc_txlock);
3152 mutex_destroy(&sc->sc_rxlock);
3153
3154 ddi_remove_minor_node(devinfo, NULL);
3155 ddi_soft_state_free(rt2860_soft_state_p, ddi_get_instance(devinfo));
3156
3157 return (DDI_SUCCESS);
3158 }
3159
3160 int
3161 _info(struct modinfo *modinfop)
3162 {
3163 return (mod_info(&modlinkage, modinfop));
3164 }
3165
3166 int
3167 _init(void)
3168 {
3169 int status;
3170
3171 status = ddi_soft_state_init(&rt2860_soft_state_p,
3172 sizeof (struct rt2860_softc), 1);
3173 if (status != 0)
3174 return (status);
3175
3176 mac_init_ops(&rwn_dev_ops, "rwn");
3177 status = mod_install(&modlinkage);
3178 if (status != 0) {
3179 mac_fini_ops(&rwn_dev_ops);
3180 ddi_soft_state_fini(&rt2860_soft_state_p);
3181 }
3182 return (status);
3183 }
3184
3185 int
3186 _fini(void)
3187 {
3188 int status;
3189
3190 status = mod_remove(&modlinkage);
3191 if (status == 0) {
3192 mac_fini_ops(&rwn_dev_ops);
3193 ddi_soft_state_fini(&rt2860_soft_state_p);
3194 }
3195 return (status);
3196 }