2 * Copyright (c) 2006 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Sepherosa Ziehau <sepherosa@gmail.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * Copyright (c) 2003-2004 wlan.kewl.org Project
38 * All rights reserved.
40 * $Id: LICENSE,v 1.1.1.1 2004/07/01 12:20:39 darron Exp $
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
46 * 1. Redistributions of source code must retain the above copyright
47 * notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 * notice, this list of conditions and the following disclaimer in the
51 * documentation and/or other materials provided with the distribution.
53 * 3. All advertising materials mentioning features or use of this software
54 * must display the following acknowledgement:
56 * This product includes software developed by the wlan.kewl.org Project.
58 * 4. Neither the name of the wlan.kewl.org Project nor the names of its
59 * contributors may be used to endorse or promote products derived from
60 * this software without specific prior written permission.
62 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
63 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
64 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
65 * THE wlan.kewl.org Project BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
66 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
67 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
68 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
69 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
70 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
71 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
74 #include <sys/param.h>
75 #include <sys/endian.h>
76 #include <sys/kernel.h>
78 #include <sys/firmware.h>
79 #include <sys/interrupt.h>
80 #include <sys/malloc.h>
83 #include <sys/serialize.h>
84 #include <sys/socket.h>
85 #include <sys/sockio.h>
86 #include <sys/sysctl.h>
88 #include <net/ethernet.h>
91 #include <net/if_arp.h>
92 #include <net/if_dl.h>
93 #include <net/if_media.h>
94 #include <net/ifq_var.h>
96 #include <netproto/802_11/ieee80211_var.h>
97 #include <netproto/802_11/ieee80211_radiotap.h>
98 #include <netproto/802_11/wlan_ratectl/amrr/ieee80211_amrr_param.h>
99 #include <netproto/802_11/wlan_ratectl/onoe/ieee80211_onoe_param.h>
101 #include <bus/pci/pcireg.h>
102 #include <bus/pci/pcivar.h>
103 #include <bus/pci/pcidevs.h>
107 #include <dev/netif/acx/if_acxreg.h>
108 #include <dev/netif/acx/if_acxvar.h>
109 #include <dev/netif/acx/acxcmd.h>
111 static int acx_probe(device_t);
112 static int acx_attach(device_t);
113 static int acx_detach(device_t);
114 static int acx_shutdown(device_t);
116 static void acx_init(void *);
117 static void acx_start(struct ifnet *);
118 static int acx_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
119 static void acx_watchdog(struct ifnet *);
121 static void acx_intr(void *);
122 static void acx_txeof(struct acx_softc *);
123 static void acx_txerr(struct acx_softc *, uint8_t);
124 static void acx_rxeof(struct acx_softc *);
125 static void acx_disable_intr(struct acx_softc *);
126 static void acx_enable_intr(struct acx_softc *);
128 static int acx_reset(struct acx_softc *);
129 static int acx_stop(struct acx_softc *);
130 static void acx_init_info_reg(struct acx_softc *);
131 static int acx_config(struct acx_softc *);
132 static int acx_read_config(struct acx_softc *, struct acx_config *);
133 static int acx_write_config(struct acx_softc *, struct acx_config *);
134 static int acx_rx_config(struct acx_softc *, int);
135 static int acx_set_crypt_keys(struct acx_softc *);
136 static void acx_calibrate(void *);
138 static int acx_dma_alloc(struct acx_softc *);
139 static void acx_dma_free(struct acx_softc *);
140 static int acx_init_tx_ring(struct acx_softc *);
141 static int acx_init_rx_ring(struct acx_softc *);
142 static int acx_newbuf(struct acx_softc *, struct acx_rxbuf *, int);
143 static int acx_encap(struct acx_softc *, struct acx_txbuf *,
144 struct mbuf *, struct ieee80211_node *);
146 static int acx_set_null_tmplt(struct acx_softc *);
147 static int acx_set_probe_req_tmplt(struct acx_softc *, const char *, int);
148 static int acx_set_probe_resp_tmplt(struct acx_softc *,
149 struct ieee80211_node *);
150 static int acx_set_beacon_tmplt(struct acx_softc *,
151 struct ieee80211_node *);
153 static int acx_read_eeprom(struct acx_softc *, uint32_t, uint8_t *);
154 static int acx_read_phyreg(struct acx_softc *, uint32_t, uint8_t *);
156 static int acx_alloc_firmware(struct acx_softc *);
157 static void acx_free_firmware(struct acx_softc *);
158 static int acx_setup_firmware(struct acx_softc *, struct fw_image *,
159 const uint8_t **, int *);
160 static int acx_load_firmware(struct acx_softc *, uint32_t,
161 const uint8_t *, int);
162 static int acx_load_radio_firmware(struct acx_softc *, const uint8_t *,
164 static int acx_load_base_firmware(struct acx_softc *, const uint8_t *,
167 static void acx_next_scan(void *);
168 static int acx_set_chan(struct acx_softc *, struct ieee80211_channel *);
170 static int acx_media_change(struct ifnet *);
171 static int acx_newstate(struct ieee80211com *, enum ieee80211_state, int);
173 static int acx_sysctl_msdu_lifetime(SYSCTL_HANDLER_ARGS);
174 static int acx_sysctl_free_firmware(SYSCTL_HANDLER_ARGS);
176 const struct ieee80211_rateset acx_rates_11b =
177 { 4, { 2, 4, 11, 22 } };
178 const struct ieee80211_rateset acx_rates_11g =
179 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } };
180 const struct ieee80211_rateset acx_rates_11b_pbcc =
181 { 5, { 2, 4, 11, 22, 44 } };
182 const struct ieee80211_rateset acx_rates_11g_pbcc =
183 { 13, { 2, 4, 11, 22, 44, 12, 18, 24, 36, 48, 72, 96, 108 } };
185 int acx_enable_pbcc = 1;
186 TUNABLE_INT("hw.acx.enable_pbcc", &acx_enable_pbcc);
188 static const struct acx_device {
191 void (*set_param)(device_t);
194 { PCI_VENDOR_TI, PCI_PRODUCT_TI_ACX100A, acx100_set_param,
195 "Texas Instruments TNETW1100A Wireless Adapter" },
196 { PCI_VENDOR_TI, PCI_PRODUCT_TI_ACX100B, acx100_set_param,
197 "Texas Instruments TNETW1100B Wireless Adapter" },
198 { PCI_VENDOR_TI, PCI_PRODUCT_TI_ACX111, acx111_set_param,
199 "Texas Instruments TNETW1130 Wireless Adapter" },
203 static device_method_t acx_methods[] = {
204 DEVMETHOD(device_probe, acx_probe),
205 DEVMETHOD(device_attach, acx_attach),
206 DEVMETHOD(device_detach, acx_detach),
207 DEVMETHOD(device_shutdown, acx_shutdown),
209 DEVMETHOD(device_suspend, acx_suspend),
210 DEVMETHOD(device_resume, acx_resume),
215 static driver_t acx_driver = {
218 sizeof(struct acx_softc)
221 static devclass_t acx_devclass;
223 DRIVER_MODULE(acx, pci, acx_driver, acx_devclass, NULL, NULL);
224 DRIVER_MODULE(acx, cardbus, acx_driver, acx_devclass, NULL, NULL);
226 MODULE_DEPEND(acx, wlan, 1, 1, 1);
227 MODULE_DEPEND(acx, wlan_ratectl_onoe, 1, 1, 1);
228 MODULE_DEPEND(acx, wlan_ratectl_amrr, 1, 1, 1);
229 MODULE_DEPEND(acx, pci, 1, 1, 1);
230 MODULE_DEPEND(acx, cardbus, 1, 1, 1);
233 acx_get_rssi(struct acx_softc *sc, uint8_t raw)
237 rssi = ((sc->chip_rssi_corr / 2) + (raw * 5)) / sc->chip_rssi_corr;
238 return rssi > 100 ? 100 : rssi;
242 acx_probe(device_t dev)
244 const struct acx_device *a;
247 vid = pci_get_vendor(dev);
248 did = pci_get_device(dev);
249 for (a = acx_devices; a->desc != NULL; ++a) {
250 if (vid == a->vid && did == a->did) {
252 device_set_desc(dev, a->desc);
260 acx_attach(device_t dev)
262 struct acx_softc *sc;
264 struct ieee80211com *ic;
267 sc = device_get_softc(dev);
271 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
274 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
275 uint32_t mem1, mem2, irq;
277 mem1 = pci_read_config(dev, sc->chip_mem1_rid, 4);
278 mem2 = pci_read_config(dev, sc->chip_mem2_rid, 4);
279 irq = pci_read_config(dev, PCIR_INTLINE, 4);
281 device_printf(dev, "chip is in D%d power mode "
282 "-- setting to D0\n", pci_get_powerstate(dev));
284 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
286 pci_write_config(dev, sc->chip_mem1_rid, mem1, 4);
287 pci_write_config(dev, sc->chip_mem2_rid, mem2, 4);
288 pci_write_config(dev, PCIR_INTLINE, irq, 4);
290 #endif /* !BURN_BRIDGE */
292 /* Enable bus mastering */
293 pci_enable_busmaster(dev);
295 /* Allocate IO memory 1 */
296 sc->sc_mem1_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
299 if (sc->sc_mem1_res == NULL) {
301 device_printf(dev, "can't allocate IO mem1\n");
304 sc->sc_mem1_bt = rman_get_bustag(sc->sc_mem1_res);
305 sc->sc_mem1_bh = rman_get_bushandle(sc->sc_mem1_res);
307 /* Allocate IO memory 2 */
308 sc->sc_mem2_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
311 if (sc->sc_mem2_res == NULL) {
313 device_printf(dev, "can't allocate IO mem2\n");
316 sc->sc_mem2_bt = rman_get_bustag(sc->sc_mem2_res);
317 sc->sc_mem2_bh = rman_get_bushandle(sc->sc_mem2_res);
320 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
322 RF_SHAREABLE | RF_ACTIVE);
323 if (sc->sc_irq_res == NULL) {
325 device_printf(dev, "can't allocate intr\n");
329 /* Initialize channel scanning timer */
330 callout_init(&sc->sc_scan_timer);
332 /* Initialize calibration timer */
333 callout_init(&sc->sc_calibrate_timer);
335 /* Allocate busdma stuffs */
336 error = acx_dma_alloc(sc);
341 error = acx_reset(sc);
345 /* Disable interrupts before firmware is loaded */
346 acx_disable_intr(sc);
348 /* Get radio type and form factor */
349 #define EEINFO_RETRY_MAX 50
350 for (i = 0; i < EEINFO_RETRY_MAX; ++i) {
353 ee_info = CSR_READ_2(sc, ACXREG_EEPROM_INFO);
354 if (ACX_EEINFO_HAS_RADIO_TYPE(ee_info)) {
355 sc->sc_form_factor = ACX_EEINFO_FORM_FACTOR(ee_info);
356 sc->sc_radio_type = ACX_EEINFO_RADIO_TYPE(ee_info);
361 if (i == EEINFO_RETRY_MAX) {
365 #undef EEINFO_RETRY_MAX
367 DPRINTF((&sc->sc_ic.ic_if, "radio type %02x\n", sc->sc_radio_type));
370 for (i = 0; i < 0x40; ++i) {
373 error = acx_read_eeprom(sc, i, &val);
376 kprintf("%02x ", val);
379 #endif /* DUMP_EEPROM */
381 /* Get EEPROM version */
382 error = acx_read_eeprom(sc, ACX_EE_VERSION_OFS, &sc->sc_eeprom_ver);
385 DPRINTF((&sc->sc_ic.ic_if, "EEPROM version %u\n", sc->sc_eeprom_ver));
388 * Initialize device sysctl before ieee80211_ifattach()
390 sc->sc_long_retry_limit = 4;
391 sc->sc_msdu_lifetime = 4096;
392 sc->sc_scan_dwell = 200; /* 200 milliseconds */
393 sc->sc_calib_intvl = 3 * 60; /* 3 minutes */
395 sysctl_ctx_init(&sc->sc_sysctl_ctx);
396 sc->sc_sysctl_tree = SYSCTL_ADD_NODE(&sc->sc_sysctl_ctx,
397 SYSCTL_STATIC_CHILDREN(_hw),
399 device_get_nameunit(dev),
401 if (sc->sc_sysctl_tree == NULL) {
402 device_printf(dev, "can't add sysctl node\n");
406 SYSCTL_ADD_PROC(&sc->sc_sysctl_ctx,
407 SYSCTL_CHILDREN(sc->sc_sysctl_tree),
408 OID_AUTO, "msdu_lifetime",
409 CTLTYPE_INT | CTLFLAG_RW,
410 sc, 0, acx_sysctl_msdu_lifetime, "I",
412 SYSCTL_ADD_INT(&sc->sc_sysctl_ctx,
413 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
414 "long_retry_limit", CTLFLAG_RW,
415 &sc->sc_long_retry_limit, 0, "Long retry limit");
416 SYSCTL_ADD_INT(&sc->sc_sysctl_ctx,
417 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
418 "scan_dwell", CTLFLAG_RW,
419 &sc->sc_scan_dwell, 0, "Scan channel dwell time (ms)");
420 SYSCTL_ADD_INT(&sc->sc_sysctl_ctx,
421 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
422 "calib_intvl", CTLFLAG_RW,
423 &sc->sc_calib_intvl, 0, "Calibration interval (second)");
426 * Nodes for firmware operation
428 SYSCTL_ADD_INT(&sc->sc_sysctl_ctx,
429 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
430 "combined_radio_fw", CTLFLAG_RW,
431 &sc->sc_firmware.combined_radio_fw, 0,
432 "Radio and base firmwares are combined");
433 SYSCTL_ADD_PROC(&sc->sc_sysctl_ctx,
434 SYSCTL_CHILDREN(sc->sc_sysctl_tree),
436 CTLTYPE_INT | CTLFLAG_RW,
437 sc, 0, acx_sysctl_free_firmware, "I",
441 * Nodes for statistics
443 SYSCTL_ADD_UQUAD(&sc->sc_sysctl_ctx,
444 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
445 "frag_error", CTLFLAG_RW, &sc->sc_stats.err_oth_frag,
446 0, "Fragment errors");
447 SYSCTL_ADD_UQUAD(&sc->sc_sysctl_ctx,
448 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
449 "tx_abort", CTLFLAG_RW, &sc->sc_stats.err_abort,
451 SYSCTL_ADD_UQUAD(&sc->sc_sysctl_ctx,
452 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
453 "tx_invalid", CTLFLAG_RW, &sc->sc_stats.err_param,
454 0, "Invalid TX param in TX descriptor");
455 SYSCTL_ADD_UQUAD(&sc->sc_sysctl_ctx,
456 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
457 "no_wepkey", CTLFLAG_RW, &sc->sc_stats.err_no_wepkey,
458 0, "No WEP key exists");
459 SYSCTL_ADD_UQUAD(&sc->sc_sysctl_ctx,
460 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
461 "msdu_timeout", CTLFLAG_RW,
462 &sc->sc_stats.err_msdu_timeout,
464 SYSCTL_ADD_UQUAD(&sc->sc_sysctl_ctx,
465 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
466 "ex_txretry", CTLFLAG_RW, &sc->sc_stats.err_ex_retry,
467 0, "Excessive TX retries");
468 SYSCTL_ADD_UQUAD(&sc->sc_sysctl_ctx,
469 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
470 "buf_oflow", CTLFLAG_RW, &sc->sc_stats.err_buf_oflow,
471 0, "Buffer overflows");
472 SYSCTL_ADD_UQUAD(&sc->sc_sysctl_ctx,
473 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
474 "dma_error", CTLFLAG_RW, &sc->sc_stats.err_dma,
476 SYSCTL_ADD_UQUAD(&sc->sc_sysctl_ctx,
477 SYSCTL_CHILDREN(sc->sc_sysctl_tree), OID_AUTO,
478 "unkn_error", CTLFLAG_RW, &sc->sc_stats.err_unkn,
479 0, "Unknown errors");
482 ifp->if_init = acx_init;
483 ifp->if_ioctl = acx_ioctl;
484 ifp->if_start = acx_start;
485 ifp->if_watchdog = acx_watchdog;
486 ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST;
487 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
488 ifq_set_ready(&ifp->if_snd);
491 for (i = 1; i <= 14; ++i) {
492 ic->ic_channels[i].ic_freq =
493 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
494 ic->ic_channels[i].ic_flags = sc->chip_chan_flags;
497 ic->ic_opmode = IEEE80211_M_STA;
498 ic->ic_state = IEEE80211_S_INIT;
501 * NOTE: Don't overwrite ic_caps set by chip specific code
503 ic->ic_caps |= IEEE80211_C_WEP | /* WEP */
504 IEEE80211_C_HOSTAP | /* HostAP mode */
505 IEEE80211_C_MONITOR | /* Monitor mode */
506 IEEE80211_C_IBSS | /* IBSS modes */
507 IEEE80211_C_SHPREAMBLE; /* Short preamble */
509 ic->ic_caps_ext = IEEE80211_CEXT_PBCC; /* PBCC modulation */
512 for (i = 0; i < IEEE80211_ADDR_LEN; ++i) {
513 error = acx_read_eeprom(sc, sc->chip_ee_eaddr_ofs - i,
517 ieee80211_ifattach(ic);
519 /* Enable software beacon missing */
520 ic->ic_flags_ext |= IEEE80211_FEXT_SWBMISS;
522 /* Override newstate */
523 sc->sc_newstate = ic->ic_newstate;
524 ic->ic_newstate = acx_newstate;
526 ieee80211_media_init(ic, acx_media_change, ieee80211_media_status);
529 * Radio tap attaching
531 bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
532 sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th),
535 sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(uint32_t));
536 sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
537 sc->sc_tx_th.wt_ihdr.it_present = htole32(ACX_TX_RADIOTAP_PRESENT);
539 sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(uint32_t));
540 sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
541 sc->sc_rx_th.wr_ihdr.it_present = htole32(ACX_RX_RADIOTAP_PRESENT);
543 error = bus_setup_intr(dev, sc->sc_irq_res, INTR_MPSAFE, acx_intr, sc,
544 &sc->sc_irq_handle, ifp->if_serializer);
546 device_printf(dev, "can't set up interrupt\n");
548 ieee80211_ifdetach(ic);
552 ifp->if_cpuid = rman_get_cpuid(sc->sc_irq_res);
553 KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
556 ieee80211_announce(ic);
565 acx_detach(device_t dev)
567 struct acx_softc *sc = device_get_softc(dev);
569 if (device_is_attached(dev)) {
570 struct ieee80211com *ic = &sc->sc_ic;
571 struct ifnet *ifp = &ic->ic_if;
573 lwkt_serialize_enter(ifp->if_serializer);
576 acx_free_firmware(sc);
577 bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_irq_handle);
579 lwkt_serialize_exit(ifp->if_serializer);
582 ieee80211_ifdetach(ic);
585 if (sc->sc_sysctl_tree != NULL)
586 sysctl_ctx_free(&sc->sc_sysctl_ctx);
588 if (sc->sc_irq_res != NULL) {
589 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irq_rid,
592 if (sc->sc_mem1_res != NULL) {
593 bus_release_resource(dev, SYS_RES_MEMORY, sc->chip_mem1_rid,
596 if (sc->sc_mem2_res != NULL) {
597 bus_release_resource(dev, SYS_RES_MEMORY, sc->chip_mem2_rid,
606 acx_shutdown(device_t dev)
608 struct acx_softc *sc = device_get_softc(dev);
610 lwkt_serialize_enter(sc->sc_ic.ic_if.if_serializer);
612 lwkt_serialize_exit(sc->sc_ic.ic_if.if_serializer);
619 struct acx_softc *sc = arg;
620 struct ieee80211com *ic = &sc->sc_ic;
621 struct ifnet *ifp = &ic->ic_if;
622 struct acx_firmware *fw = &sc->sc_firmware;
625 error = acx_stop(sc);
629 error = acx_alloc_firmware(sc);
633 error = acx_init_tx_ring(sc);
635 if_printf(ifp, "can't initialize TX ring\n");
639 error = acx_init_rx_ring(sc);
641 if_printf(ifp, "can't initialize RX ring\n");
645 error = acx_load_base_firmware(sc, fw->base_fw, fw->base_fw_len);
650 * Initialize command and information registers
651 * NOTE: This should be done after base firmware is loaded
653 acx_init_cmd_reg(sc);
654 acx_init_info_reg(sc);
656 sc->sc_flags |= ACX_FLAG_FW_LOADED;
659 if (sc->chip_post_basefw != NULL) {
660 error = sc->chip_post_basefw(sc);
666 if (fw->radio_fw != NULL) {
667 error = acx_load_radio_firmware(sc, fw->radio_fw,
673 error = sc->chip_init(sc);
677 /* Get and set device various configuration */
678 error = acx_config(sc);
682 /* Setup crypto stuffs */
683 if (sc->sc_ic.ic_flags & IEEE80211_F_PRIVACY) {
684 error = acx_set_crypt_keys(sc);
687 sc->sc_ic.ic_flags &= ~IEEE80211_F_DROPUNENC;
690 /* Turn on power led */
691 CSR_CLRB_2(sc, ACXREG_GPIO_OUT, sc->chip_gpio_pled);
695 ifp->if_flags |= IFF_RUNNING;
696 ifp->if_flags &= ~IFF_OACTIVE;
698 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
699 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)
700 ieee80211_new_state(&sc->sc_ic, IEEE80211_S_SCAN, -1);
702 ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
710 acx_init_info_reg(struct acx_softc *sc)
712 sc->sc_info = CSR_READ_4(sc, ACXREG_INFO_REG_OFFSET);
713 sc->sc_info_param = sc->sc_info + ACX_INFO_REG_SIZE;
717 acx_set_crypt_keys(struct acx_softc *sc)
719 struct ieee80211com *ic = &sc->sc_ic;
720 struct acx_conf_wep_txkey wep_txkey;
721 int i, error, got_wk = 0;
723 for (i = 0; i < IEEE80211_WEP_NKID; ++i) {
724 struct ieee80211_key *wk = &ic->ic_nw_keys[i];
726 if (wk->wk_keylen == 0)
729 if (sc->chip_hw_crypt) {
730 error = sc->chip_set_wepkey(sc, wk, i);
734 } else if (wk->wk_flags & IEEE80211_KEY_XMIT) {
735 wk->wk_flags |= IEEE80211_KEY_SWCRYPT;
739 if (!got_wk || sc->chip_hw_crypt ||
740 ic->ic_def_txkey == IEEE80211_KEYIX_NONE)
743 /* Set current WEP key index */
744 wep_txkey.wep_txkey = ic->ic_def_txkey;
745 if (acx_set_wep_txkey_conf(sc, &wep_txkey) != 0) {
746 if_printf(&ic->ic_if, "set WEP txkey failed\n");
753 acx_next_scan(void *arg)
755 struct acx_softc *sc = arg;
756 struct ieee80211com *ic = &sc->sc_ic;
757 struct ifnet *ifp = &ic->ic_if;
759 lwkt_serialize_enter(ifp->if_serializer);
761 if (ic->ic_state == IEEE80211_S_SCAN)
762 ieee80211_next_scan(ic);
764 lwkt_serialize_exit(ifp->if_serializer);
768 acx_stop(struct acx_softc *sc)
770 struct ieee80211com *ic = &sc->sc_ic;
771 struct ifnet *ifp = &ic->ic_if;
772 struct acx_buf_data *bd = &sc->sc_buf_data;
773 struct acx_ring_data *rd = &sc->sc_ring_data;
776 ASSERT_SERIALIZED(ifp->if_serializer);
778 ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1);
780 sc->sc_firmware_ver = 0;
781 sc->sc_hardware_id = 0;
784 error = acx_reset(sc);
788 /* Firmware no longer functions after hardware reset */
789 sc->sc_flags &= ~ACX_FLAG_FW_LOADED;
791 acx_disable_intr(sc);
793 /* Stop backgroud scanning */
794 callout_stop(&sc->sc_scan_timer);
796 /* Turn off power led */
797 CSR_SETB_2(sc, ACXREG_GPIO_OUT, sc->chip_gpio_pled);
800 for (i = 0; i < ACX_TX_DESC_CNT; ++i) {
801 struct acx_txbuf *buf;
803 buf = &bd->tx_buf[i];
805 if (buf->tb_mbuf != NULL) {
806 bus_dmamap_unload(bd->mbuf_dma_tag,
807 buf->tb_mbuf_dmamap);
808 m_freem(buf->tb_mbuf);
812 if (buf->tb_node != NULL)
813 ieee80211_free_node(buf->tb_node);
817 /* Clear TX host descriptors */
818 bzero(rd->tx_ring, ACX_TX_RING_SIZE);
821 for (i = 0; i < ACX_RX_DESC_CNT; ++i) {
822 if (bd->rx_buf[i].rb_mbuf != NULL) {
823 bus_dmamap_unload(bd->mbuf_dma_tag,
824 bd->rx_buf[i].rb_mbuf_dmamap);
825 m_freem(bd->rx_buf[i].rb_mbuf);
826 bd->rx_buf[i].rb_mbuf = NULL;
830 /* Clear RX host descriptors */
831 bzero(rd->rx_ring, ACX_RX_RING_SIZE);
835 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
841 acx_config(struct acx_softc *sc)
843 struct acx_config conf;
846 error = acx_read_config(sc, &conf);
850 error = acx_write_config(sc, &conf);
854 error = acx_rx_config(sc, sc->sc_flags & ACX_FLAG_PROMISC);
858 if (acx_set_probe_req_tmplt(sc, "", 0) != 0) {
859 if_printf(&sc->sc_ic.ic_if, "can't set probe req template "
865 if (acx_set_null_tmplt(sc) != 0) {
866 if_printf(&sc->sc_ic.ic_if, "can't set null data template\n");
873 acx_read_config(struct acx_softc *sc, struct acx_config *conf)
875 struct acx_conf_eaddr addr;
876 struct acx_conf_regdom reg_dom;
877 struct acx_conf_antenna ant;
878 struct acx_conf_fwrev fw_rev;
884 if (acx_get_eaddr_conf(sc, &addr) != 0) {
885 if_printf(&sc->sc_ic.ic_if, "can't get station id\n");
890 * Get and print station id in case that EEPROM station id's
891 * offset is not correct
893 for (i = 0; i < IEEE80211_ADDR_LEN; ++i)
894 conf->eaddr[IEEE80211_ADDR_LEN - 1 - i] = addr.eaddr[i];
895 if_printf(&sc->sc_ic.ic_if, "MAC address (from firmware): %6D\n",
898 /* Get region domain */
899 if (acx_get_regdom_conf(sc, ®_dom) != 0) {
900 if_printf(&sc->sc_ic.ic_if, "can't get region domain\n");
903 conf->regdom = reg_dom.regdom;
904 DPRINTF((&sc->sc_ic.ic_if, "regdom %02x\n", reg_dom.regdom));
907 if (acx_get_antenna_conf(sc, &ant) != 0) {
908 if_printf(&sc->sc_ic.ic_if, "can't get antenna\n");
911 conf->antenna = ant.antenna;
912 DPRINTF((&sc->sc_ic.ic_if, "antenna %02x\n", ant.antenna));
914 /* Get sensitivity XXX not used */
915 if (sc->sc_radio_type == ACX_RADIO_TYPE_MAXIM ||
916 sc->sc_radio_type == ACX_RADIO_TYPE_RFMD ||
917 sc->sc_radio_type == ACX_RADIO_TYPE_RALINK) {
918 error = acx_read_phyreg(sc, ACXRV_PHYREG_SENSITIVITY, &sen);
920 if_printf(&sc->sc_ic.ic_if, "can't get sensitivity\n");
926 DPRINTF((&sc->sc_ic.ic_if, "sensitivity %02x\n", sen));
928 /* Get firmware revision */
929 if (acx_get_fwrev_conf(sc, &fw_rev) != 0) {
930 if_printf(&sc->sc_ic.ic_if, "can't get firmware revision\n");
934 if (strncmp(fw_rev.fw_rev, "Rev ", 4) != 0) {
935 if_printf(&sc->sc_ic.ic_if, "strange revision string -- %s\n",
937 fw_rev_no = 0x01090407;
946 s = &fw_rev.fw_rev[4];
948 for (i = 0; i < 4; ++i) {
951 val = strtoul(s, &endp, 16);
952 fw_rev_no |= val << ((3 - i) * 8);
960 sc->sc_firmware_ver = fw_rev_no;
961 sc->sc_hardware_id = le32toh(fw_rev.hw_id);
962 DPRINTF((&sc->sc_ic.ic_if, "fw rev %08x, hw id %08x\n",
963 sc->sc_firmware_ver, sc->sc_hardware_id));
965 if (sc->chip_read_config != NULL) {
966 error = sc->chip_read_config(sc, conf);
974 acx_write_config(struct acx_softc *sc, struct acx_config *conf)
976 struct acx_conf_nretry_short sretry;
977 struct acx_conf_nretry_long lretry;
978 struct acx_conf_msdu_lifetime msdu_lifetime;
979 struct acx_conf_rate_fallback rate_fb;
980 struct acx_conf_antenna ant;
981 struct acx_conf_regdom reg_dom;
984 /* Set number of long/short retry */
985 KKASSERT(sc->chip_short_retry_limit > 0);
986 sretry.nretry = sc->chip_short_retry_limit;
987 if (acx_set_nretry_short_conf(sc, &sretry) != 0) {
988 if_printf(&sc->sc_ic.ic_if, "can't set short retry limit\n");
992 lretry.nretry = sc->sc_long_retry_limit;
993 if (acx_set_nretry_long_conf(sc, &lretry) != 0) {
994 if_printf(&sc->sc_ic.ic_if, "can't set long retry limit\n");
998 /* Set MSDU lifetime */
999 msdu_lifetime.lifetime = htole32(sc->sc_msdu_lifetime);
1000 if (acx_set_msdu_lifetime_conf(sc, &msdu_lifetime) != 0) {
1001 if_printf(&sc->sc_ic.ic_if, "can't set MSDU lifetime\n");
1005 /* Enable rate fallback */
1006 rate_fb.ratefb_enable = 1;
1007 if (acx_set_rate_fallback_conf(sc, &rate_fb) != 0) {
1008 if_printf(&sc->sc_ic.ic_if, "can't enable rate fallback\n");
1013 ant.antenna = conf->antenna;
1014 if (acx_set_antenna_conf(sc, &ant) != 0) {
1015 if_printf(&sc->sc_ic.ic_if, "can't set antenna\n");
1019 /* Set region domain */
1020 reg_dom.regdom = conf->regdom;
1021 if (acx_set_regdom_conf(sc, ®_dom) != 0) {
1022 if_printf(&sc->sc_ic.ic_if, "can't set region domain\n");
1026 if (sc->chip_write_config != NULL) {
1027 error = sc->chip_write_config(sc, conf);
1036 acx_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1038 struct acx_softc *sc = ifp->if_softc;
1039 struct ieee80211com *ic = &sc->sc_ic;
1046 if (ifp->if_flags & IFF_UP) {
1047 if ((ifp->if_flags & IFF_RUNNING)) {
1050 if ((ifp->if_flags & IFF_PROMISC) &&
1051 (sc->sc_flags & ACX_FLAG_PROMISC) == 0)
1053 else if ((ifp->if_flags & IFF_PROMISC) == 0 &&
1054 (sc->sc_flags & ACX_FLAG_PROMISC))
1058 * Promisc mode is always enabled when
1059 * operation mode is Monitor.
1061 if (ic->ic_opmode != IEEE80211_M_MONITOR &&
1063 error = acx_rx_config(sc, promisc);
1068 if (ifp->if_flags & IFF_RUNNING)
1072 if (ifp->if_flags & IFF_PROMISC)
1073 sc->sc_flags |= ACX_FLAG_PROMISC;
1075 sc->sc_flags &= ~ACX_FLAG_PROMISC;
1082 error = ieee80211_ioctl(ic, cmd, data, cr);
1086 if (error == ENETRESET) {
1087 if ((ifp->if_flags & (IFF_RUNNING | IFF_UP)) ==
1088 (IFF_RUNNING | IFF_UP))
1096 acx_start(struct ifnet *ifp)
1098 struct acx_softc *sc = ifp->if_softc;
1099 struct ieee80211com *ic = &sc->sc_ic;
1100 struct acx_buf_data *bd = &sc->sc_buf_data;
1101 struct acx_txbuf *buf;
1104 ASSERT_SERIALIZED(ifp->if_serializer);
1106 if ((sc->sc_flags & ACX_FLAG_FW_LOADED) == 0) {
1107 ifq_purge(&ifp->if_snd);
1108 ieee80211_drain_mgtq(&ic->ic_mgtq);
1112 if ((ifp->if_flags & IFF_RUNNING) == 0 ||
1113 (ifp->if_flags & IFF_OACTIVE))
1118 * We can't start from a random position that TX descriptor
1119 * is free, since hardware will be confused by that.
1120 * We have to follow the order of the TX ring.
1122 idx = bd->tx_free_start;
1124 for (buf = &bd->tx_buf[idx]; buf->tb_mbuf == NULL;
1125 buf = &bd->tx_buf[idx]) {
1126 struct ieee80211_frame *f;
1127 struct ieee80211_node *ni = NULL;
1131 if (!IF_QEMPTY(&ic->ic_mgtq)) {
1132 IF_DEQUEUE(&ic->ic_mgtq, m);
1134 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
1135 m->m_pkthdr.rcvif = NULL;
1140 * Don't transmit probe response firmware will
1143 f = mtod(m, struct ieee80211_frame *);
1144 if ((f->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1145 IEEE80211_FC0_TYPE_MGT &&
1146 (f->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1147 IEEE80211_FC0_SUBTYPE_PROBE_RESP) {
1149 ieee80211_free_node(ni);
1153 } else if (!ifq_is_empty(&ifp->if_snd)) {
1154 struct ether_header *eh;
1156 if (ic->ic_state != IEEE80211_S_RUN) {
1157 ifq_purge(&ifp->if_snd);
1161 m = ifq_dequeue(&ifp->if_snd, NULL);
1165 if (m->m_len < sizeof(struct ether_header)) {
1166 m = m_pullup(m, sizeof(struct ether_header));
1172 eh = mtod(m, struct ether_header *);
1174 ni = ieee80211_find_txnode(ic, eh->ether_dhost);
1181 /* TODO power save */
1185 m = ieee80211_encap(ic, m, ni);
1187 ieee80211_free_node(ni);
1195 if (ic->ic_rawbpf != NULL)
1196 bpf_mtap(ic->ic_rawbpf, m);
1198 f = mtod(m, struct ieee80211_frame *);
1199 if ((f->i_fc[1] & IEEE80211_FC1_WEP) && !sc->chip_hw_crypt) {
1200 KASSERT(ni != NULL, ("TX node is NULL (WEP)"));
1201 if (ieee80211_crypto_encap(ic, ni, m) == NULL) {
1202 ieee80211_free_node(ni);
1210 * Since mgmt data are transmitted at fixed rate
1211 * they will not be used to do rate control.
1213 if (mgmt_pkt && ni != NULL) {
1214 ieee80211_free_node(ni);
1218 if (acx_encap(sc, buf, m, ni) != 0) {
1220 * NOTE: `m' will be freed in acx_encap()
1224 ieee80211_free_node(ni);
1231 * 1) `m' should not be touched after acx_encap()
1232 * 2) `node' will be used to do TX rate control during
1233 * acx_txeof(), so it is not freed here. acx_txeof()
1234 * will free it for us
1238 bd->tx_used_count++;
1239 idx = (idx + 1) % ACX_TX_DESC_CNT;
1241 bd->tx_free_start = idx;
1243 if (bd->tx_used_count == ACX_TX_DESC_CNT)
1244 ifp->if_flags |= IFF_OACTIVE;
1246 if (trans && sc->sc_tx_timer == 0)
1247 sc->sc_tx_timer = 5;
1252 acx_watchdog(struct ifnet *ifp)
1254 struct acx_softc *sc = ifp->if_softc;
1258 if ((ifp->if_flags & IFF_RUNNING) == 0)
1261 if (sc->sc_tx_timer) {
1262 if (--sc->sc_tx_timer == 0) {
1263 if_printf(ifp, "watchdog timeout\n");
1265 acx_txeof(ifp->if_softc);
1270 ieee80211_watchdog(&sc->sc_ic);
1276 struct acx_softc *sc = arg;
1277 uint16_t intr_status;
1279 if ((sc->sc_flags & ACX_FLAG_FW_LOADED) == 0)
1282 intr_status = CSR_READ_2(sc, ACXREG_INTR_STATUS_CLR);
1283 if (intr_status == ACXRV_INTR_ALL) {
1284 /* not our interrupt */
1288 intr_status &= sc->chip_intr_enable;
1289 if (intr_status == 0) {
1290 /* not interrupts we care about */
1294 /* Acknowledge all interrupts */
1295 CSR_WRITE_2(sc, ACXREG_INTR_ACK, ACXRV_INTR_ALL);
1297 if (intr_status & ACXRV_INTR_TX_FINI)
1300 if (intr_status & ACXRV_INTR_RX_FINI)
1305 acx_disable_intr(struct acx_softc *sc)
1307 CSR_WRITE_2(sc, ACXREG_INTR_MASK, sc->chip_intr_disable);
1308 CSR_WRITE_2(sc, ACXREG_EVENT_MASK, 0);
1312 acx_enable_intr(struct acx_softc *sc)
1314 /* Mask out interrupts that are not in the enable set */
1315 CSR_WRITE_2(sc, ACXREG_INTR_MASK, ~sc->chip_intr_enable);
1316 CSR_WRITE_2(sc, ACXREG_EVENT_MASK, ACXRV_EVENT_DISABLE);
1320 acx_txeof(struct acx_softc *sc)
1322 struct acx_buf_data *bd;
1323 struct acx_txbuf *buf;
1327 ifp = &sc->sc_ic.ic_if;
1328 ASSERT_SERIALIZED(ifp->if_serializer);
1330 bd = &sc->sc_buf_data;
1331 idx = bd->tx_used_start;
1332 for (buf = &bd->tx_buf[idx]; buf->tb_mbuf != NULL;
1333 buf = &bd->tx_buf[idx]) {
1334 uint8_t ctrl, error;
1337 ctrl = FW_TXDESC_GETFIELD_1(sc, buf, f_tx_ctrl);
1338 if ((ctrl & (DESC_CTRL_HOSTOWN | DESC_CTRL_ACXDONE)) !=
1339 (DESC_CTRL_HOSTOWN | DESC_CTRL_ACXDONE))
1342 bus_dmamap_unload(bd->mbuf_dma_tag, buf->tb_mbuf_dmamap);
1343 frame_len = buf->tb_mbuf->m_pkthdr.len;
1344 m_freem(buf->tb_mbuf);
1345 buf->tb_mbuf = NULL;
1347 error = FW_TXDESC_GETFIELD_1(sc, buf, f_tx_error);
1349 acx_txerr(sc, error);
1355 if (buf->tb_node != NULL) {
1356 sc->chip_tx_complete(sc, buf, frame_len, error);
1357 ieee80211_free_node(buf->tb_node);
1358 buf->tb_node = NULL;
1361 FW_TXDESC_SETFIELD_1(sc, buf, f_tx_ctrl, DESC_CTRL_HOSTOWN);
1363 bd->tx_used_count--;
1365 idx = (idx + 1) % ACX_TX_DESC_CNT;
1367 bd->tx_used_start = idx;
1369 sc->sc_tx_timer = bd->tx_used_count == 0 ? 0 : 5;
1371 if (bd->tx_used_count != ACX_TX_DESC_CNT) {
1372 ifp->if_flags &= ~IFF_OACTIVE;
1378 acx_txerr(struct acx_softc *sc, uint8_t err)
1380 struct ifnet *ifp = &sc->sc_ic.ic_if;
1381 struct acx_stats *stats = &sc->sc_stats;
1383 if (err == DESC_ERR_EXCESSIVE_RETRY) {
1385 * This a common error (see comment below),
1386 * so print it using DPRINTF()
1388 DPRINTF((ifp, "TX failed -- excessive retry\n"));
1390 if_printf(ifp, "TX failed -- ");
1394 * Although `err' looks like bitmask, it never
1395 * has multiple bits set.
1399 case DESC_ERR_OTHER_FRAG:
1400 /* XXX what's this */
1401 kprintf("error in other fragment\n");
1402 stats->err_oth_frag++;
1405 case DESC_ERR_ABORT:
1406 kprintf("aborted\n");
1409 case DESC_ERR_PARAM:
1410 kprintf("wrong parameters in descriptor\n");
1413 case DESC_ERR_NO_WEPKEY:
1414 kprintf("WEP key missing\n");
1415 stats->err_no_wepkey++;
1417 case DESC_ERR_MSDU_TIMEOUT:
1418 kprintf("MSDU life timeout\n");
1419 stats->err_msdu_timeout++;
1421 case DESC_ERR_EXCESSIVE_RETRY:
1424 * 1) Distance is too long
1425 * 2) Transmit failed (e.g. no MAC level ACK)
1426 * 3) Chip overheated (this should be rare)
1428 stats->err_ex_retry++;
1430 case DESC_ERR_BUF_OVERFLOW:
1431 kprintf("buffer overflow\n");
1432 stats->err_buf_oflow++;
1435 kprintf("DMA error\n");
1439 kprintf("unknown error %d\n", err);
1446 acx_rxeof(struct acx_softc *sc)
1448 struct ieee80211com *ic = &sc->sc_ic;
1449 struct acx_ring_data *rd = &sc->sc_ring_data;
1450 struct acx_buf_data *bd = &sc->sc_buf_data;
1451 struct ifnet *ifp = &ic->ic_if;
1454 ASSERT_SERIALIZED(ic->ic_if.if_serializer);
1456 bus_dmamap_sync(rd->rx_ring_dma_tag, rd->rx_ring_dmamap,
1457 BUS_DMASYNC_POSTREAD);
1460 * Locate first "ready" rx buffer,
1461 * start from last stopped position
1463 idx = bd->rx_scan_start;
1466 struct acx_rxbuf *buf;
1468 buf = &bd->rx_buf[idx];
1469 if ((buf->rb_desc->h_ctrl & htole16(DESC_CTRL_HOSTOWN)) &&
1470 (buf->rb_desc->h_status & htole32(DESC_STATUS_FULL))) {
1474 idx = (idx + 1) % ACX_RX_DESC_CNT;
1475 } while (idx != bd->rx_scan_start);
1481 * NOTE: don't mess up `idx' here, it will
1482 * be used in the following code
1486 struct acx_rxbuf_hdr *head;
1487 struct acx_rxbuf *buf;
1488 struct ieee80211_frame_min *wh;
1490 uint32_t desc_status;
1492 int len, error, rssi, is_priv;
1494 buf = &bd->rx_buf[idx];
1496 desc_ctrl = le16toh(buf->rb_desc->h_ctrl);
1497 desc_status = le32toh(buf->rb_desc->h_status);
1498 if (!(desc_ctrl & DESC_CTRL_HOSTOWN) ||
1499 !(desc_status & DESC_STATUS_FULL))
1502 bus_dmamap_sync(bd->mbuf_dma_tag, buf->rb_mbuf_dmamap,
1503 BUS_DMASYNC_POSTREAD);
1507 error = acx_newbuf(sc, buf, 0);
1513 head = mtod(m, struct acx_rxbuf_hdr *);
1514 len = le16toh(head->rbh_len) & ACX_RXBUF_LEN_MASK;
1515 rssi = acx_get_rssi(sc, head->rbh_level);
1517 m_adj(m, sizeof(struct acx_rxbuf_hdr) + sc->chip_rxbuf_exhdr);
1518 m->m_len = m->m_pkthdr.len = len;
1519 m->m_pkthdr.rcvif = &ic->ic_if;
1521 wh = mtod(m, struct ieee80211_frame_min *);
1522 is_priv = (wh->i_fc[1] & IEEE80211_FC1_WEP);
1524 if (sc->sc_drvbpf != NULL) {
1525 sc->sc_rx_th.wr_tsf = htole32(head->rbh_time);
1527 sc->sc_rx_th.wr_flags = 0;
1529 sc->sc_rx_th.wr_flags |=
1530 IEEE80211_RADIOTAP_F_WEP;
1532 if (head->rbh_bbp_stat & ACX_RXBUF_STAT_SHPRE) {
1533 sc->sc_rx_th.wr_flags |=
1534 IEEE80211_RADIOTAP_F_SHORTPRE;
1537 if (sc->chip_phymode == IEEE80211_MODE_11G) {
1538 sc->sc_rx_th.wr_rate =
1539 ieee80211_plcp2rate(head->rbh_plcp,
1540 head->rbh_bbp_stat & ACX_RXBUF_STAT_OFDM);
1542 sc->sc_rx_th.wr_rate =
1543 ieee80211_plcp2rate(head->rbh_plcp, 0);
1546 sc->sc_rx_th.wr_antsignal = rssi;
1548 if (head->rbh_bbp_stat & ACX_RXBUF_STAT_ANT1)
1549 sc->sc_rx_th.wr_antenna = 1;
1551 sc->sc_rx_th.wr_antenna = 0;
1553 bpf_ptap(sc->sc_drvbpf, m, &sc->sc_rx_th,
1557 if (len >= sizeof(struct ieee80211_frame_min) &&
1559 struct ieee80211_node *ni;
1561 if (is_priv && sc->chip_hw_crypt) {
1562 /* Short circuit software WEP */
1563 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
1565 /* Do chip specific RX buffer processing */
1566 if (sc->chip_proc_wep_rxbuf != NULL) {
1567 sc->chip_proc_wep_rxbuf(sc, m, &len);
1569 struct ieee80211_frame_min *);
1572 m->m_len = m->m_pkthdr.len = len;
1574 ni = ieee80211_find_rxnode(ic, wh);
1575 ieee80211_input(ic, m, ni, rssi,
1576 le32toh(head->rbh_time));
1577 ieee80211_free_node(ni);
1581 if (len < sizeof(struct ieee80211_frame_min)) {
1582 if (ic->ic_rawbpf != NULL &&
1583 len >= sizeof(struct ieee80211_frame_ack))
1584 bpf_mtap(ic->ic_rawbpf, m);
1586 if (ic->ic_opmode != IEEE80211_M_MONITOR)
1587 ic->ic_stats.is_rx_tooshort++;
1592 buf->rb_desc->h_ctrl = htole16(desc_ctrl & ~DESC_CTRL_HOSTOWN);
1593 buf->rb_desc->h_status = 0;
1594 bus_dmamap_sync(rd->rx_ring_dma_tag, rd->rx_ring_dmamap,
1595 BUS_DMASYNC_PREWRITE);
1597 idx = (idx + 1) % ACX_RX_DESC_CNT;
1598 } while (idx != bd->rx_scan_start);
1601 * Record the position so that next
1602 * time we can start from it
1604 bd->rx_scan_start = idx;
1608 acx_reset(struct acx_softc *sc)
1613 CSR_SETB_2(sc, ACXREG_ECPU_CTRL, ACXRV_ECPU_HALT);
1615 /* Software reset */
1616 reg = CSR_READ_2(sc, ACXREG_SOFT_RESET);
1617 CSR_WRITE_2(sc, ACXREG_SOFT_RESET, reg | ACXRV_SOFT_RESET);
1619 CSR_WRITE_2(sc, ACXREG_SOFT_RESET, reg);
1621 /* Initialize EEPROM */
1622 CSR_SETB_2(sc, ACXREG_EEPROM_INIT, ACXRV_EEPROM_INIT);
1625 /* Test whether ECPU is stopped */
1626 reg = CSR_READ_2(sc, ACXREG_ECPU_CTRL);
1627 if (!(reg & ACXRV_ECPU_HALT)) {
1628 if_printf(&sc->sc_ic.ic_if, "can't halt ECPU\n");
1635 acx_read_eeprom(struct acx_softc *sc, uint32_t offset, uint8_t *val)
1639 CSR_WRITE_4(sc, ACXREG_EEPROM_CONF, 0);
1640 CSR_WRITE_4(sc, ACXREG_EEPROM_ADDR, offset);
1641 CSR_WRITE_4(sc, ACXREG_EEPROM_CTRL, ACXRV_EEPROM_READ);
1643 #define EE_READ_RETRY_MAX 100
1644 for (i = 0; i < EE_READ_RETRY_MAX; ++i) {
1645 if (CSR_READ_2(sc, ACXREG_EEPROM_CTRL) == 0)
1649 if (i == EE_READ_RETRY_MAX) {
1650 if_printf(&sc->sc_ic.ic_if, "can't read EEPROM offset %x "
1651 "(timeout)\n", offset);
1654 #undef EE_READ_RETRY_MAX
1656 *val = CSR_READ_1(sc, ACXREG_EEPROM_DATA);
1661 acx_read_phyreg(struct acx_softc *sc, uint32_t reg, uint8_t *val)
1665 CSR_WRITE_4(sc, ACXREG_PHY_ADDR, reg);
1666 CSR_WRITE_4(sc, ACXREG_PHY_CTRL, ACXRV_PHY_READ);
1668 #define PHY_READ_RETRY_MAX 100
1669 for (i = 0; i < PHY_READ_RETRY_MAX; ++i) {
1670 if (CSR_READ_4(sc, ACXREG_PHY_CTRL) == 0)
1674 if (i == PHY_READ_RETRY_MAX) {
1675 if_printf(&sc->sc_ic.ic_if, "can't read phy reg %x (timeout)\n",
1679 #undef PHY_READ_RETRY_MAX
1681 *val = CSR_READ_1(sc, ACXREG_PHY_DATA);
1686 acx_write_phyreg(struct acx_softc *sc, uint32_t reg, uint8_t val)
1688 CSR_WRITE_4(sc, ACXREG_PHY_DATA, val);
1689 CSR_WRITE_4(sc, ACXREG_PHY_ADDR, reg);
1690 CSR_WRITE_4(sc, ACXREG_PHY_CTRL, ACXRV_PHY_WRITE);
1694 acx_alloc_firmware(struct acx_softc *sc)
1696 struct acx_firmware *fw = &sc->sc_firmware;
1697 struct ifnet *ifp = &sc->sc_ic.ic_if;
1698 struct fw_image *img;
1703 * NB: serializer need to be released before loading firmware
1704 * image to avoid possible dead lock
1706 ASSERT_SERIALIZED(ifp->if_serializer);
1708 if (fw->base_fw_image == NULL) {
1709 if (fw->combined_radio_fw) {
1710 ksnprintf(filename, sizeof(filename),
1711 ACX_BASE_RADIO_FW_PATH,
1712 fw->fwdir, sc->sc_radio_type);
1714 ksnprintf(filename, sizeof(filename),
1715 ACX_BASE_FW_PATH, fw->fwdir);
1718 lwkt_serialize_exit(ifp->if_serializer);
1719 img = firmware_image_load(filename, NULL);
1720 lwkt_serialize_enter(ifp->if_serializer);
1722 fw->base_fw_image = img;
1723 if (fw->base_fw_image == NULL) {
1724 if_printf(ifp, "load %s base fw failed\n", filename);
1729 error = acx_setup_firmware(sc, fw->base_fw_image,
1730 &fw->base_fw, &fw->base_fw_len);
1735 if (!fw->combined_radio_fw && fw->radio_fw_image == NULL) {
1736 ksnprintf(filename, sizeof(filename), ACX_RADIO_FW_PATH,
1737 fw->fwdir, sc->sc_radio_type);
1739 lwkt_serialize_exit(ifp->if_serializer);
1740 img = firmware_image_load(filename, NULL);
1741 lwkt_serialize_enter(ifp->if_serializer);
1743 fw->radio_fw_image = img;
1744 if (fw->radio_fw_image == NULL) {
1745 if_printf(ifp, "load %s radio fw failed\n", filename);
1750 error = acx_setup_firmware(sc, fw->radio_fw_image,
1751 &fw->radio_fw, &fw->radio_fw_len);
1755 acx_free_firmware(sc);
1760 acx_setup_firmware(struct acx_softc *sc, struct fw_image *img,
1761 const uint8_t **ptr, int *len)
1763 const struct acx_firmware_hdr *hdr;
1772 * Make sure that the firmware image contains more than just a header
1774 if (img->fw_imglen <= sizeof(*hdr)) {
1775 if_printf(&sc->sc_ic.ic_if, "%s is invalid image, "
1776 "size %zu (too small)\n",
1777 img->fw_name, img->fw_imglen);
1780 hdr = (const struct acx_firmware_hdr *)img->fw_image;
1785 if (hdr->fwh_len != img->fw_imglen - sizeof(*hdr)) {
1786 if_printf(&sc->sc_ic.ic_if, "%s is invalid image, "
1787 "size in hdr %u and image size %zu mismatches\n",
1788 img->fw_name, hdr->fwh_len, img->fw_imglen);
1796 for (i = 0, p = (const uint8_t *)&hdr->fwh_len;
1797 i < img->fw_imglen - sizeof(hdr->fwh_cksum); ++i, ++p)
1799 if (cksum != hdr->fwh_cksum) {
1800 if_printf(&sc->sc_ic.ic_if, "%s is invalid image, "
1801 "checksum mismatch\n", img->fw_name);
1805 *ptr = ((const uint8_t *)img->fw_image + sizeof(*hdr));
1806 *len = img->fw_imglen - sizeof(*hdr);
1811 acx_free_firmware(struct acx_softc *sc)
1813 struct acx_firmware *fw = &sc->sc_firmware;
1815 if (fw->base_fw_image != NULL) {
1816 firmware_image_unload(fw->base_fw_image);
1817 fw->base_fw_image = NULL;
1819 fw->base_fw_len = 0;
1821 if (fw->radio_fw_image != NULL) {
1822 firmware_image_unload(fw->radio_fw_image);
1823 fw->radio_fw_image = NULL;
1824 fw->radio_fw = NULL;
1825 fw->radio_fw_len = 0;
1830 acx_load_base_firmware(struct acx_softc *sc, const uint8_t *base_fw,
1831 uint32_t base_fw_len)
1835 /* Load base firmware */
1836 error = acx_load_firmware(sc, 0, base_fw, base_fw_len);
1838 if_printf(&sc->sc_ic.ic_if, "can't load base firmware\n");
1841 DPRINTF((&sc->sc_ic.ic_if, "base firmware loaded\n"));
1844 CSR_WRITE_2(sc, ACXREG_ECPU_CTRL, ACXRV_ECPU_START);
1846 /* Wait for ECPU to be up */
1847 for (i = 0; i < 500; ++i) {
1850 reg = CSR_READ_2(sc, ACXREG_INTR_STATUS);
1851 if (reg & ACXRV_INTR_FCS_THRESH) {
1852 CSR_WRITE_2(sc, ACXREG_INTR_ACK, ACXRV_INTR_FCS_THRESH);
1858 if_printf(&sc->sc_ic.ic_if, "can't initialize ECPU (timeout)\n");
1863 acx_load_radio_firmware(struct acx_softc *sc, const uint8_t *radio_fw,
1864 uint32_t radio_fw_len)
1866 struct acx_conf_mmap mem_map;
1867 uint32_t radio_fw_ofs;
1871 * Get the position, where base firmware is loaded, so that
1872 * radio firmware can be loaded after it.
1874 if (acx_get_mmap_conf(sc, &mem_map) != 0)
1876 radio_fw_ofs = le32toh(mem_map.code_end);
1878 /* Put ECPU into sleeping state, before loading radio firmware */
1879 if (acx_sleep(sc) != 0)
1882 /* Load radio firmware */
1883 error = acx_load_firmware(sc, radio_fw_ofs, radio_fw, radio_fw_len);
1885 if_printf(&sc->sc_ic.ic_if, "can't load radio firmware\n");
1888 DPRINTF((&sc->sc_ic.ic_if, "radio firmware loaded\n"));
1890 /* Wake up sleeping ECPU, after radio firmware is loaded */
1891 if (acx_wakeup(sc) != 0)
1894 /* Initialize radio */
1895 if (acx_init_radio(sc, radio_fw_ofs, radio_fw_len) != 0)
1898 /* Verify radio firmware's loading position */
1899 if (acx_get_mmap_conf(sc, &mem_map) != 0)
1901 if (le32toh(mem_map.code_end) != radio_fw_ofs + radio_fw_len) {
1902 if_printf(&sc->sc_ic.ic_if, "loaded radio firmware position "
1907 DPRINTF((&sc->sc_ic.ic_if, "radio firmware initialized\n"));
1912 acx_load_firmware(struct acx_softc *sc, uint32_t offset, const uint8_t *data,
1918 fw = (const uint32_t *)data;
1919 fw_len = data_len / sizeof(uint32_t);
1922 * LOADFW_AUTO_INC only works with some older firmware:
1923 * 1) acx100's firmware
1924 * 2) acx111's firmware whose rev is 0x00010011
1928 CSR_WRITE_4(sc, ACXREG_FWMEM_START, ACXRV_FWMEM_START_OP);
1929 #ifndef LOADFW_AUTO_INC
1930 CSR_WRITE_4(sc, ACXREG_FWMEM_CTRL, 0);
1932 CSR_WRITE_4(sc, ACXREG_FWMEM_CTRL, ACXRV_FWMEM_ADDR_AUTOINC);
1933 CSR_WRITE_4(sc, ACXREG_FWMEM_ADDR, offset);
1936 for (i = 0; i < fw_len; ++i) {
1937 #ifndef LOADFW_AUTO_INC
1938 CSR_WRITE_4(sc, ACXREG_FWMEM_ADDR, offset + (i * 4));
1940 CSR_WRITE_4(sc, ACXREG_FWMEM_DATA, be32toh(fw[i]));
1943 /* Verify firmware */
1944 CSR_WRITE_4(sc, ACXREG_FWMEM_START, ACXRV_FWMEM_START_OP);
1945 #ifndef LOADFW_AUTO_INC
1946 CSR_WRITE_4(sc, ACXREG_FWMEM_CTRL, 0);
1948 CSR_WRITE_4(sc, ACXREG_FWMEM_CTRL, ACXRV_FWMEM_ADDR_AUTOINC);
1949 CSR_WRITE_4(sc, ACXREG_FWMEM_ADDR, offset);
1952 for (i = 0; i < fw_len; ++i) {
1955 #ifndef LOADFW_AUTO_INC
1956 CSR_WRITE_4(sc, ACXREG_FWMEM_ADDR, offset + (i * 4));
1958 val = CSR_READ_4(sc, ACXREG_FWMEM_DATA);
1959 if (be32toh(fw[i]) != val) {
1960 if_printf(&sc->sc_ic.ic_if, "fireware mismatch "
1961 "fw %08x loaded %08x\n", fw[i], val);
1969 acx_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
1971 struct ifnet *ifp = &ic->ic_if;
1972 struct acx_softc *sc = ifp->if_softc;
1973 struct ieee80211_node *ni = NULL;
1974 struct ieee80211_channel *c = NULL;
1975 int error = 1, mode = 0;
1977 ASSERT_SERIALIZED(ifp->if_serializer);
1979 ieee80211_ratectl_newstate(ic, nstate);
1980 callout_stop(&sc->sc_scan_timer);
1981 callout_stop(&sc->sc_calibrate_timer);
1984 case IEEE80211_S_SCAN:
1985 acx_set_chan(sc, ic->ic_curchan);
1986 callout_reset(&sc->sc_scan_timer,
1987 (hz * sc->sc_scan_dwell) / 1000,
1990 case IEEE80211_S_AUTH:
1991 if (ic->ic_opmode == IEEE80211_M_STA) {
1994 mode = ACX_MODE_STA;
1997 case IEEE80211_S_RUN:
1998 if (ic->ic_opmode == IEEE80211_M_IBSS ||
1999 ic->ic_opmode == IEEE80211_M_HOSTAP) {
2002 if (ic->ic_opmode == IEEE80211_M_IBSS)
2003 mode = ACX_MODE_ADHOC;
2007 if (acx_set_beacon_tmplt(sc, ni) != 0) {
2008 if_printf(ifp, "set bescon template failed\n");
2011 if (acx_set_probe_resp_tmplt(sc, ni) != 0) {
2012 if_printf(ifp, "set probe response template"
2016 } else if (ic->ic_opmode == IEEE80211_M_MONITOR) {
2019 mode = ACX_MODE_STA;
2027 KKASSERT(c != NULL);
2029 if (acx_set_chan(sc, c) != 0)
2032 if (acx_join_bss(sc, mode, ni, c) != 0) {
2033 if_printf(ifp, "join BSS failed\n");
2038 if (nstate == IEEE80211_S_RUN) {
2039 int interval = sc->sc_calib_intvl;
2041 if (sc->chip_calibrate != NULL) {
2042 error = sc->chip_calibrate(sc);
2045 * Restart calibration some time later
2049 callout_reset(&sc->sc_calibrate_timer,
2050 hz * interval, acx_calibrate, sc);
2057 nstate = IEEE80211_S_INIT;
2060 return sc->sc_newstate(ic, nstate, arg);
2064 acx_init_tmplt_ordered(struct acx_softc *sc)
2066 #define INIT_TMPLT(name) \
2068 if (acx_init_##name##_tmplt(sc) != 0) \
2074 * Order of templates initialization:
2080 * Above order is critical to get a correct memory map.
2082 INIT_TMPLT(probe_req);
2083 INIT_TMPLT(null_data);
2086 INIT_TMPLT(probe_resp);
2093 acx_ring_dma_addr(void *arg, bus_dma_segment_t *seg, int nseg, int error)
2095 *((uint32_t *)arg) = seg->ds_addr;
2099 acx_dma_alloc(struct acx_softc *sc)
2101 struct acx_ring_data *rd = &sc->sc_ring_data;
2102 struct acx_buf_data *bd = &sc->sc_buf_data;
2105 /* Allocate DMA stuffs for RX descriptors */
2106 error = bus_dma_tag_create(NULL, PAGE_SIZE, 0,
2107 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
2109 ACX_RX_RING_SIZE, 1, ACX_RX_RING_SIZE,
2110 0, &rd->rx_ring_dma_tag);
2112 if_printf(&sc->sc_ic.ic_if, "can't create rx ring dma tag\n");
2116 error = bus_dmamem_alloc(rd->rx_ring_dma_tag, (void **)&rd->rx_ring,
2117 BUS_DMA_WAITOK | BUS_DMA_ZERO,
2118 &rd->rx_ring_dmamap);
2120 if_printf(&sc->sc_ic.ic_if,
2121 "can't allocate rx ring dma memory\n");
2122 bus_dma_tag_destroy(rd->rx_ring_dma_tag);
2123 rd->rx_ring_dma_tag = NULL;
2127 error = bus_dmamap_load(rd->rx_ring_dma_tag, rd->rx_ring_dmamap,
2128 rd->rx_ring, ACX_RX_RING_SIZE,
2129 acx_ring_dma_addr, &rd->rx_ring_paddr,
2132 if_printf(&sc->sc_ic.ic_if, "can't get rx ring dma address\n");
2133 bus_dmamem_free(rd->rx_ring_dma_tag, rd->rx_ring,
2134 rd->rx_ring_dmamap);
2135 bus_dma_tag_destroy(rd->rx_ring_dma_tag);
2136 rd->rx_ring_dma_tag = NULL;
2140 /* Allocate DMA stuffs for TX descriptors */
2141 error = bus_dma_tag_create(NULL, PAGE_SIZE, 0,
2142 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
2144 ACX_TX_RING_SIZE, 1, ACX_TX_RING_SIZE,
2145 0, &rd->tx_ring_dma_tag);
2147 if_printf(&sc->sc_ic.ic_if, "can't create tx ring dma tag\n");
2151 error = bus_dmamem_alloc(rd->tx_ring_dma_tag, (void **)&rd->tx_ring,
2152 BUS_DMA_WAITOK | BUS_DMA_ZERO,
2153 &rd->tx_ring_dmamap);
2155 if_printf(&sc->sc_ic.ic_if,
2156 "can't allocate tx ring dma memory\n");
2157 bus_dma_tag_destroy(rd->tx_ring_dma_tag);
2158 rd->tx_ring_dma_tag = NULL;
2162 error = bus_dmamap_load(rd->tx_ring_dma_tag, rd->tx_ring_dmamap,
2163 rd->tx_ring, ACX_TX_RING_SIZE,
2164 acx_ring_dma_addr, &rd->tx_ring_paddr,
2167 if_printf(&sc->sc_ic.ic_if, "can't get tx ring dma address\n");
2168 bus_dmamem_free(rd->tx_ring_dma_tag, rd->tx_ring,
2169 rd->tx_ring_dmamap);
2170 bus_dma_tag_destroy(rd->tx_ring_dma_tag);
2171 rd->tx_ring_dma_tag = NULL;
2175 /* Create DMA tag for RX/TX mbuf map */
2176 error = bus_dma_tag_create(NULL, 1, 0,
2177 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
2179 MCLBYTES, 1, MCLBYTES,
2180 0, &bd->mbuf_dma_tag);
2182 if_printf(&sc->sc_ic.ic_if, "can't create mbuf dma tag\n");
2186 /* Create a spare RX DMA map */
2187 error = bus_dmamap_create(bd->mbuf_dma_tag, 0, &bd->mbuf_tmp_dmamap);
2189 if_printf(&sc->sc_ic.ic_if, "can't create tmp mbuf dma map\n");
2190 bus_dma_tag_destroy(bd->mbuf_dma_tag);
2191 bd->mbuf_dma_tag = NULL;
2195 /* Create DMA map for RX mbufs */
2196 for (i = 0; i < ACX_RX_DESC_CNT; ++i) {
2197 error = bus_dmamap_create(bd->mbuf_dma_tag, 0,
2198 &bd->rx_buf[i].rb_mbuf_dmamap);
2200 if_printf(&sc->sc_ic.ic_if, "can't create rx mbuf "
2201 "dma map (%d)\n", i);
2204 bd->rx_buf[i].rb_desc = &rd->rx_ring[i];
2207 /* Create DMA map for TX mbufs */
2208 for (i = 0; i < ACX_TX_DESC_CNT; ++i) {
2209 error = bus_dmamap_create(bd->mbuf_dma_tag, 0,
2210 &bd->tx_buf[i].tb_mbuf_dmamap);
2212 if_printf(&sc->sc_ic.ic_if, "can't create tx mbuf "
2213 "dma map (%d)\n", i);
2216 bd->tx_buf[i].tb_desc1 = &rd->tx_ring[i * 2];
2217 bd->tx_buf[i].tb_desc2 = &rd->tx_ring[(i * 2) + 1];
2224 acx_dma_free(struct acx_softc *sc)
2226 struct acx_ring_data *rd = &sc->sc_ring_data;
2227 struct acx_buf_data *bd = &sc->sc_buf_data;
2230 if (rd->rx_ring_dma_tag != NULL) {
2231 bus_dmamap_unload(rd->rx_ring_dma_tag, rd->rx_ring_dmamap);
2232 bus_dmamem_free(rd->rx_ring_dma_tag, rd->rx_ring,
2233 rd->rx_ring_dmamap);
2234 bus_dma_tag_destroy(rd->rx_ring_dma_tag);
2237 if (rd->tx_ring_dma_tag != NULL) {
2238 bus_dmamap_unload(rd->tx_ring_dma_tag, rd->tx_ring_dmamap);
2239 bus_dmamem_free(rd->tx_ring_dma_tag, rd->tx_ring,
2240 rd->tx_ring_dmamap);
2241 bus_dma_tag_destroy(rd->tx_ring_dma_tag);
2244 for (i = 0; i < ACX_RX_DESC_CNT; ++i) {
2245 if (bd->rx_buf[i].rb_desc != NULL) {
2246 if (bd->rx_buf[i].rb_mbuf != NULL) {
2247 bus_dmamap_unload(bd->mbuf_dma_tag,
2248 bd->rx_buf[i].rb_mbuf_dmamap);
2249 m_freem(bd->rx_buf[i].rb_mbuf);
2251 bus_dmamap_destroy(bd->mbuf_dma_tag,
2252 bd->rx_buf[i].rb_mbuf_dmamap);
2256 for (i = 0; i < ACX_TX_DESC_CNT; ++i) {
2257 if (bd->tx_buf[i].tb_desc1 != NULL) {
2258 if (bd->tx_buf[i].tb_mbuf != NULL) {
2259 bus_dmamap_unload(bd->mbuf_dma_tag,
2260 bd->tx_buf[i].tb_mbuf_dmamap);
2261 m_freem(bd->tx_buf[i].tb_mbuf);
2263 bus_dmamap_destroy(bd->mbuf_dma_tag,
2264 bd->tx_buf[i].tb_mbuf_dmamap);
2268 if (bd->mbuf_dma_tag != NULL) {
2269 bus_dmamap_destroy(bd->mbuf_dma_tag, bd->mbuf_tmp_dmamap);
2270 bus_dma_tag_destroy(bd->mbuf_dma_tag);
2275 acx_init_tx_ring(struct acx_softc *sc)
2277 struct acx_ring_data *rd;
2278 struct acx_buf_data *bd;
2282 rd = &sc->sc_ring_data;
2283 paddr = rd->tx_ring_paddr;
2284 for (i = 0; i < (ACX_TX_DESC_CNT * 2) - 1; ++i) {
2285 paddr += sizeof(struct acx_host_desc);
2287 rd->tx_ring[i].h_ctrl = htole16(DESC_CTRL_HOSTOWN);
2289 if (i == (ACX_TX_DESC_CNT * 2) - 1)
2290 rd->tx_ring[i].h_next_desc = htole32(rd->tx_ring_paddr);
2292 rd->tx_ring[i].h_next_desc = htole32(paddr);
2295 bus_dmamap_sync(rd->tx_ring_dma_tag, rd->tx_ring_dmamap,
2296 BUS_DMASYNC_PREWRITE);
2298 bd = &sc->sc_buf_data;
2299 bd->tx_free_start = 0;
2300 bd->tx_used_start = 0;
2301 bd->tx_used_count = 0;
2307 acx_init_rx_ring(struct acx_softc *sc)
2309 struct acx_ring_data *rd;
2310 struct acx_buf_data *bd;
2314 bd = &sc->sc_buf_data;
2315 rd = &sc->sc_ring_data;
2316 paddr = rd->rx_ring_paddr;
2318 for (i = 0; i < ACX_RX_DESC_CNT; ++i) {
2321 paddr += sizeof(struct acx_host_desc);
2323 error = acx_newbuf(sc, &bd->rx_buf[i], 1);
2327 if (i == ACX_RX_DESC_CNT - 1)
2328 rd->rx_ring[i].h_next_desc = htole32(rd->rx_ring_paddr);
2330 rd->rx_ring[i].h_next_desc = htole32(paddr);
2333 bus_dmamap_sync(rd->rx_ring_dma_tag, rd->rx_ring_dmamap,
2334 BUS_DMASYNC_PREWRITE);
2336 bd->rx_scan_start = 0;
2341 acx_buf_dma_addr(void *arg, bus_dma_segment_t *seg, int nseg,
2342 bus_size_t mapsz, int error)
2348 KASSERT(nseg == 1, ("too many RX dma segments"));
2349 *((uint32_t *)arg) = seg->ds_addr;
2353 acx_newbuf(struct acx_softc *sc, struct acx_rxbuf *rb, int wait)
2355 struct acx_buf_data *bd;
2361 bd = &sc->sc_buf_data;
2363 m = m_getcl(wait ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR);
2367 m->m_len = m->m_pkthdr.len = MCLBYTES;
2369 error = bus_dmamap_load_mbuf(bd->mbuf_dma_tag, bd->mbuf_tmp_dmamap,
2370 m, acx_buf_dma_addr, &paddr,
2371 wait ? BUS_DMA_WAITOK : BUS_DMA_NOWAIT);
2374 if_printf(&sc->sc_ic.ic_if, "can't map rx mbuf %d\n", error);
2378 /* Unload originally mapped mbuf */
2379 bus_dmamap_unload(bd->mbuf_dma_tag, rb->rb_mbuf_dmamap);
2381 /* Swap this dmamap with tmp dmamap */
2382 map = rb->rb_mbuf_dmamap;
2383 rb->rb_mbuf_dmamap = bd->mbuf_tmp_dmamap;
2384 bd->mbuf_tmp_dmamap = map;
2387 rb->rb_desc->h_data_paddr = htole32(paddr);
2388 rb->rb_desc->h_data_len = htole16(m->m_len);
2390 bus_dmamap_sync(bd->mbuf_dma_tag, rb->rb_mbuf_dmamap,
2391 BUS_DMASYNC_PREREAD);
2396 acx_encap(struct acx_softc *sc, struct acx_txbuf *txbuf, struct mbuf *m,
2397 struct ieee80211_node *ni)
2399 struct acx_buf_data *bd = &sc->sc_buf_data;
2400 struct acx_ring_data *rd = &sc->sc_ring_data;
2405 KASSERT(txbuf->tb_mbuf == NULL, ("free TX buf has mbuf installed"));
2407 if (m->m_pkthdr.len > MCLBYTES) {
2408 if_printf(&sc->sc_ic.ic_if, "mbuf too big\n");
2411 } else if (m->m_pkthdr.len < ACX_FRAME_HDRLEN) {
2412 if_printf(&sc->sc_ic.ic_if, "mbuf too small\n");
2417 error = bus_dmamap_load_mbuf(bd->mbuf_dma_tag, txbuf->tb_mbuf_dmamap,
2418 m, acx_buf_dma_addr, &paddr,
2420 if (error && error != EFBIG) {
2421 if_printf(&sc->sc_ic.ic_if, "can't map tx mbuf1 %d\n", error);
2425 if (error) { /* error == EFBIG */
2428 m_new = m_defrag(m, MB_DONTWAIT);
2429 if (m_new == NULL) {
2430 if_printf(&sc->sc_ic.ic_if, "can't defrag tx mbuf\n");
2437 error = bus_dmamap_load_mbuf(bd->mbuf_dma_tag,
2438 txbuf->tb_mbuf_dmamap, m,
2439 acx_buf_dma_addr, &paddr,
2442 if_printf(&sc->sc_ic.ic_if, "can't map tx mbuf2 %d\n",
2450 bus_dmamap_sync(bd->mbuf_dma_tag, txbuf->tb_mbuf_dmamap,
2451 BUS_DMASYNC_PREWRITE);
2454 txbuf->tb_node = ni;
2457 * TX buffers are accessed in following way:
2458 * acx_fw_txdesc -> acx_host_desc -> buffer
2460 * It is quite strange that acx also querys acx_host_desc next to
2461 * the one we have assigned to acx_fw_txdesc even if first one's
2462 * acx_host_desc.h_data_len == acx_fw_txdesc.f_tx_len
2464 * So we allocate two acx_host_desc for one acx_fw_txdesc and
2465 * assign the first acx_host_desc to acx_fw_txdesc
2468 * host_desc1.h_data_len = buffer_len
2469 * host_desc2.h_data_len = buffer_len - mac_header_len
2472 * host_desc1.h_data_len = mac_header_len
2473 * host_desc2.h_data_len = buffer_len - mac_header_len
2476 txbuf->tb_desc1->h_data_paddr = htole32(paddr);
2477 txbuf->tb_desc2->h_data_paddr = htole32(paddr + ACX_FRAME_HDRLEN);
2479 txbuf->tb_desc1->h_data_len =
2480 htole16(sc->chip_txdesc1_len ? sc->chip_txdesc1_len
2482 txbuf->tb_desc2->h_data_len =
2483 htole16(m->m_pkthdr.len - ACX_FRAME_HDRLEN);
2487 * We can't simply assign f_tx_ctrl, we will first read it back
2488 * and change it bit by bit
2490 ctrl = FW_TXDESC_GETFIELD_1(sc, txbuf, f_tx_ctrl);
2491 ctrl |= sc->chip_fw_txdesc_ctrl; /* extra chip specific flags */
2492 ctrl &= ~(DESC_CTRL_HOSTOWN | DESC_CTRL_ACXDONE);
2494 FW_TXDESC_SETFIELD_2(sc, txbuf, f_tx_len, m->m_pkthdr.len);
2495 FW_TXDESC_SETFIELD_1(sc, txbuf, f_tx_error, 0);
2496 FW_TXDESC_SETFIELD_1(sc, txbuf, f_tx_data_nretry, 0);
2497 FW_TXDESC_SETFIELD_1(sc, txbuf, f_tx_rts_nretry, 0);
2498 FW_TXDESC_SETFIELD_1(sc, txbuf, f_tx_rts_ok, 0);
2499 rate = sc->chip_set_fw_txdesc_rate(sc, txbuf, ni, m->m_pkthdr.len);
2501 if (sc->sc_drvbpf != NULL) {
2502 struct ieee80211_frame_min *wh;
2504 wh = mtod(m, struct ieee80211_frame_min *);
2505 sc->sc_tx_th.wt_flags = 0;
2506 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
2507 sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2508 sc->sc_tx_th.wt_rate = rate;
2510 bpf_ptap(sc->sc_drvbpf, m, &sc->sc_tx_th, sc->sc_tx_th_len);
2513 txbuf->tb_desc1->h_ctrl = 0;
2514 txbuf->tb_desc2->h_ctrl = 0;
2515 bus_dmamap_sync(rd->tx_ring_dma_tag, rd->tx_ring_dmamap,
2516 BUS_DMASYNC_PREWRITE);
2518 FW_TXDESC_SETFIELD_1(sc, txbuf, f_tx_ctrl2, 0);
2519 FW_TXDESC_SETFIELD_1(sc, txbuf, f_tx_ctrl, ctrl);
2521 /* Tell chip to inform us about TX completion */
2522 CSR_WRITE_2(sc, ACXREG_INTR_TRIG, ACXRV_TRIG_TX_FINI);
2530 acx_set_null_tmplt(struct acx_softc *sc)
2532 struct acx_tmplt_null_data n;
2533 struct ieee80211_frame *f;
2535 bzero(&n, sizeof(n));
2538 f->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA |
2539 IEEE80211_FC0_SUBTYPE_NODATA;
2540 IEEE80211_ADDR_COPY(f->i_addr1, etherbroadcastaddr);
2541 IEEE80211_ADDR_COPY(f->i_addr2, IF_LLADDR(&sc->sc_ic.ic_if));
2542 IEEE80211_ADDR_COPY(f->i_addr3, etherbroadcastaddr);
2544 return _acx_set_null_data_tmplt(sc, &n, sizeof(n));
2548 acx_set_probe_req_tmplt(struct acx_softc *sc, const char *ssid, int ssid_len)
2550 struct acx_tmplt_probe_req req;
2551 struct ieee80211_frame *f;
2555 bzero(&req, sizeof(req));
2557 f = &req.data.u_data.f;
2558 f->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
2559 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
2560 IEEE80211_ADDR_COPY(f->i_addr1, etherbroadcastaddr);
2561 IEEE80211_ADDR_COPY(f->i_addr2, IF_LLADDR(&sc->sc_ic.ic_if));
2562 IEEE80211_ADDR_COPY(f->i_addr3, etherbroadcastaddr);
2564 v = req.data.u_data.var;
2565 v = ieee80211_add_ssid(v, ssid, ssid_len);
2566 v = ieee80211_add_rates(v, &sc->sc_ic.ic_sup_rates[sc->chip_phymode]);
2567 v = ieee80211_add_xrates(v, &sc->sc_ic.ic_sup_rates[sc->chip_phymode]);
2568 vlen = v - req.data.u_data.var;
2570 return _acx_set_probe_req_tmplt(sc, &req,
2571 ACX_TMPLT_PROBE_REQ_SIZ(vlen));
2575 acx_set_probe_resp_tmplt(struct acx_softc *sc, struct ieee80211_node *ni)
2577 struct ieee80211com *ic = &sc->sc_ic;
2578 struct acx_tmplt_probe_resp resp;
2579 struct ieee80211_frame *f;
2583 m = ieee80211_probe_resp_alloc(ic, ni);
2586 DPRINTF((&ic->ic_if, "%s alloc probe resp size %d\n", __func__,
2589 f = mtod(m, struct ieee80211_frame *);
2590 IEEE80211_ADDR_COPY(f->i_addr1, etherbroadcastaddr);
2592 bzero(&resp, sizeof(resp));
2593 m_copydata(m, 0, m->m_pkthdr.len, (caddr_t)&resp.data);
2594 len = m->m_pkthdr.len + sizeof(resp.size);
2597 return _acx_set_probe_resp_tmplt(sc, &resp, len);
2601 acx_set_beacon_tmplt(struct acx_softc *sc, struct ieee80211_node *ni)
2603 struct ieee80211com *ic = &sc->sc_ic;
2604 struct acx_tmplt_beacon beacon;
2605 struct acx_tmplt_tim tim;
2606 struct ieee80211_beacon_offsets bo;
2608 int beacon_tmplt_len = 0, tim_tmplt_len = 0;
2610 bzero(&bo, sizeof(bo));
2611 m = ieee80211_beacon_alloc(ic, ni, &bo);
2614 DPRINTF((&ic->ic_if, "%s alloc beacon size %d\n", __func__,
2617 if (bo.bo_tim_len == 0) {
2618 beacon_tmplt_len = m->m_pkthdr.len;
2620 beacon_tmplt_len = bo.bo_tim - mtod(m, uint8_t *);
2621 tim_tmplt_len = m->m_pkthdr.len - beacon_tmplt_len;
2624 bzero(&beacon, sizeof(beacon));
2625 bzero(&tim, sizeof(tim));
2627 m_copydata(m, 0, beacon_tmplt_len, (caddr_t)&beacon.data);
2628 if (tim_tmplt_len != 0) {
2629 m_copydata(m, beacon_tmplt_len, tim_tmplt_len,
2630 (caddr_t)&tim.data);
2634 beacon_tmplt_len += sizeof(beacon.size);
2635 if (_acx_set_beacon_tmplt(sc, &beacon, beacon_tmplt_len) != 0)
2638 if (tim_tmplt_len != 0) {
2639 tim_tmplt_len += sizeof(tim.size);
2640 if (_acx_set_tim_tmplt(sc, &tim, tim_tmplt_len) != 0)
2647 acx_sysctl_msdu_lifetime(SYSCTL_HANDLER_ARGS)
2649 struct acx_softc *sc = arg1;
2650 struct ifnet *ifp = &sc->sc_ic.ic_if;
2653 lwkt_serialize_enter(ifp->if_serializer);
2655 v = sc->sc_msdu_lifetime;
2656 error = sysctl_handle_int(oidp, &v, 0, req);
2657 if (error || req->newptr == NULL)
2664 if (sc->sc_flags & ACX_FLAG_FW_LOADED) {
2665 struct acx_conf_msdu_lifetime msdu_lifetime;
2667 msdu_lifetime.lifetime = htole32(v);
2668 if (acx_set_msdu_lifetime_conf(sc, &msdu_lifetime) != 0) {
2669 if_printf(&sc->sc_ic.ic_if,
2670 "can't set MSDU lifetime\n");
2675 sc->sc_msdu_lifetime = v;
2677 lwkt_serialize_exit(ifp->if_serializer);
2682 acx_sysctl_free_firmware(SYSCTL_HANDLER_ARGS)
2684 struct acx_softc *sc = arg1;
2685 struct ifnet *ifp = &sc->sc_ic.ic_if;
2688 lwkt_serialize_enter(ifp->if_serializer);
2691 error = sysctl_handle_int(oidp, &v, 0, req);
2692 if (error || req->newptr == NULL)
2694 if (v == 0) /* Do nothing */
2697 acx_free_firmware(sc);
2699 lwkt_serialize_exit(ifp->if_serializer);
2704 acx_media_change(struct ifnet *ifp)
2708 error = ieee80211_media_change(ifp);
2709 if (error != ENETRESET)
2712 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
2713 acx_init(ifp->if_softc);
2718 acx_rx_config(struct acx_softc *sc, int promisc)
2720 struct acx_conf_rxopt rx_opt;
2721 struct ieee80211com *ic = &sc->sc_ic;
2724 * What we want to receive and how to receive
2727 /* Common for all operational modes */
2728 rx_opt.opt1 = RXOPT1_INCL_RXBUF_HDR;
2729 rx_opt.opt2 = RXOPT2_RECV_ASSOC_REQ |
2731 RXOPT2_RECV_BEACON |
2736 RXOPT2_RECV_PROBE_REQ |
2737 RXOPT2_RECV_PROBE_RESP |
2740 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
2741 rx_opt.opt1 |= RXOPT1_PROMISC;
2742 rx_opt.opt2 |= RXOPT2_RECV_BROKEN | RXOPT2_RECV_ACK;
2744 rx_opt.opt1 |= promisc ? RXOPT1_PROMISC : RXOPT1_FILT_FDEST;
2747 if (acx_set_rxopt_conf(sc, &rx_opt) != 0) {
2748 if_printf(&sc->sc_ic.ic_if, "can't config RX\n");
2755 acx_set_chan(struct acx_softc *sc, struct ieee80211_channel *c)
2757 struct ieee80211com *ic = &sc->sc_ic;
2761 chan = ieee80211_chan2ieee(ic, c);
2762 if (acx_enable_txchan(sc, chan) != 0) {
2763 if_printf(&ic->ic_if, "enable TX on channel %d failed\n", chan);
2766 if (acx_enable_rxchan(sc, chan) != 0) {
2767 if_printf(&ic->ic_if, "enable RX on channel %d failed\n", chan);
2771 if (IEEE80211_IS_CHAN_G(c))
2772 flags = IEEE80211_CHAN_G;
2774 flags = IEEE80211_CHAN_B;
2776 sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq =
2777 htole16(c->ic_freq);
2778 sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags =
2784 acx_calibrate(void *xsc)
2786 struct acx_softc *sc = xsc;
2787 struct ifnet *ifp = &sc->sc_ic.ic_if;
2789 lwkt_serialize_enter(ifp->if_serializer);
2790 if (sc->chip_calibrate != NULL &&
2791 sc->sc_ic.ic_state == IEEE80211_S_RUN) {
2792 sc->chip_calibrate(sc);
2793 callout_reset(&sc->sc_calibrate_timer, hz * sc->sc_calib_intvl,
2796 lwkt_serialize_exit(ifp->if_serializer);