1 // SPDX-License-Identifier: ISC
2 /*
3 * Copyright (c) 2010 Broadcom Corporation
4 */
5
6 #include <linux/kernel.h>
7 #include <linux/string.h>
8 #include <linux/netdevice.h>
9 #include <linux/module.h>
10 #include <linux/firmware.h>
11 #include <brcmu_wifi.h>
12 #include <brcmu_utils.h>
13 #include "core.h"
14 #include "bus.h"
15 #include "debug.h"
16 #include "fwil.h"
17 #include "fwil_types.h"
18 #include "tracepoint.h"
19 #include "common.h"
20 #include "of.h"
21 #include "firmware.h"
22 #include "chip.h"
23
24 MODULE_AUTHOR("Broadcom Corporation");
25 MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver.");
26 MODULE_LICENSE("Dual BSD/GPL");
27
28 #define BRCMF_DEFAULT_SCAN_CHANNEL_TIME 40
29 #define BRCMF_DEFAULT_SCAN_UNASSOC_TIME 40
30
31 /* default boost value for RSSI_DELTA in preferred join selection */
32 #define BRCMF_JOIN_PREF_RSSI_BOOST 8
33
34 #define BRCMF_DEFAULT_TXGLOM_SIZE 32 /* max tx frames in glom chain */
35
36 static int brcmf_sdiod_txglomsz = BRCMF_DEFAULT_TXGLOM_SIZE;
37 module_param_named(txglomsz, brcmf_sdiod_txglomsz, int, 0);
38 MODULE_PARM_DESC(txglomsz, "Maximum tx packet chain size [SDIO]");
39
40 /* Debug level configuration. See debug.h for bits, sysfs modifiable */
41 int brcmf_msg_level;
42 module_param_named(debug, brcmf_msg_level, int, 0600);
43 MODULE_PARM_DESC(debug, "Level of debug output");
44
45 static int brcmf_p2p_enable;
46 module_param_named(p2pon, brcmf_p2p_enable, int, 0);
47 MODULE_PARM_DESC(p2pon, "Enable legacy p2p management functionality");
48
49 static int brcmf_feature_disable;
50 module_param_named(feature_disable, brcmf_feature_disable, int, 0);
51 MODULE_PARM_DESC(feature_disable, "Disable features");
52
53 static char brcmf_firmware_path[BRCMF_FW_ALTPATH_LEN];
54 module_param_string(alternative_fw_path, brcmf_firmware_path,
55 BRCMF_FW_ALTPATH_LEN, 0400);
56 MODULE_PARM_DESC(alternative_fw_path, "Alternative firmware path");
57
58 static int brcmf_fcmode;
59 module_param_named(fcmode, brcmf_fcmode, int, 0);
60 MODULE_PARM_DESC(fcmode, "Mode of firmware signalled flow control");
61
62 static int brcmf_roamoff;
63 module_param_named(roamoff, brcmf_roamoff, int, 0400);
64 MODULE_PARM_DESC(roamoff, "Do not use internal roaming engine");
65
66 static int brcmf_iapp_enable;
67 module_param_named(iapp, brcmf_iapp_enable, int, 0);
68 MODULE_PARM_DESC(iapp, "Enable partial support for the obsoleted Inter-Access Point Protocol");
69
70 #ifdef DEBUG
71 /* always succeed brcmf_bus_started() */
72 static int brcmf_ignore_probe_fail;
73 module_param_named(ignore_probe_fail, brcmf_ignore_probe_fail, int, 0);
74 MODULE_PARM_DESC(ignore_probe_fail, "always succeed probe for debugging");
75 #endif
76
77 static struct brcmfmac_platform_data *brcmfmac_pdata;
78 struct brcmf_mp_global_t brcmf_mp_global;
79
brcmf_c_set_joinpref_default(struct brcmf_if * ifp)80 void brcmf_c_set_joinpref_default(struct brcmf_if *ifp)
81 {
82 struct brcmf_pub *drvr = ifp->drvr;
83 struct brcmf_join_pref_params join_pref_params[2];
84 int err;
85
86 /* Setup join_pref to select target by RSSI (boost on 5GHz) */
87 join_pref_params[0].type = BRCMF_JOIN_PREF_RSSI_DELTA;
88 join_pref_params[0].len = 2;
89 join_pref_params[0].rssi_gain = BRCMF_JOIN_PREF_RSSI_BOOST;
90 join_pref_params[0].band = WLC_BAND_5G;
91
92 join_pref_params[1].type = BRCMF_JOIN_PREF_RSSI;
93 join_pref_params[1].len = 2;
94 join_pref_params[1].rssi_gain = 0;
95 join_pref_params[1].band = 0;
96 err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params,
97 sizeof(join_pref_params));
98 if (err)
99 bphy_err(drvr, "Set join_pref error (%d)\n", err);
100 }
101
brcmf_c_download(struct brcmf_if * ifp,u16 flag,struct brcmf_dload_data_le * dload_buf,u32 len,const char * var)102 static int brcmf_c_download(struct brcmf_if *ifp, u16 flag,
103 struct brcmf_dload_data_le *dload_buf,
104 u32 len, const char *var)
105 {
106 s32 err;
107
108 flag |= (DLOAD_HANDLER_VER << DLOAD_FLAG_VER_SHIFT);
109 dload_buf->flag = cpu_to_le16(flag);
110 dload_buf->dload_type = cpu_to_le16(DL_TYPE_CLM);
111 dload_buf->len = cpu_to_le32(len);
112 dload_buf->crc = cpu_to_le32(0);
113
114 err = brcmf_fil_iovar_data_set(ifp, var, dload_buf,
115 struct_size(dload_buf, data, len));
116
117 return err;
118 }
119
brcmf_c_download_blob(struct brcmf_if * ifp,const void * data,size_t size,const char * loadvar,const char * statvar)120 static int brcmf_c_download_blob(struct brcmf_if *ifp,
121 const void *data, size_t size,
122 const char *loadvar, const char *statvar)
123 {
124 struct brcmf_pub *drvr = ifp->drvr;
125 struct brcmf_dload_data_le *chunk_buf;
126 u32 chunk_len;
127 u32 datalen;
128 u32 cumulative_len;
129 u16 dl_flag = DL_BEGIN;
130 u32 status;
131 s32 err;
132
133 brcmf_dbg(TRACE, "Enter\n");
134
135 chunk_buf = kzalloc(struct_size(chunk_buf, data, MAX_CHUNK_LEN),
136 GFP_KERNEL);
137 if (!chunk_buf) {
138 err = -ENOMEM;
139 return -ENOMEM;
140 }
141
142 datalen = size;
143 cumulative_len = 0;
144 do {
145 if (datalen > MAX_CHUNK_LEN) {
146 chunk_len = MAX_CHUNK_LEN;
147 } else {
148 chunk_len = datalen;
149 dl_flag |= DL_END;
150 }
151 memcpy(chunk_buf->data, data + cumulative_len, chunk_len);
152
153 err = brcmf_c_download(ifp, dl_flag, chunk_buf, chunk_len,
154 loadvar);
155
156 dl_flag &= ~DL_BEGIN;
157
158 cumulative_len += chunk_len;
159 datalen -= chunk_len;
160 } while ((datalen > 0) && (err == 0));
161
162 if (err) {
163 bphy_err(drvr, "%s (%zu byte file) failed (%d)\n",
164 loadvar, size, err);
165 /* Retrieve status and print */
166 err = brcmf_fil_iovar_int_get(ifp, statvar, &status);
167 if (err)
168 bphy_err(drvr, "get %s failed (%d)\n", statvar, err);
169 else
170 brcmf_dbg(INFO, "%s=%d\n", statvar, status);
171 err = -EIO;
172 }
173
174 kfree(chunk_buf);
175 return err;
176 }
177
brcmf_c_process_clm_blob(struct brcmf_if * ifp)178 static int brcmf_c_process_clm_blob(struct brcmf_if *ifp)
179 {
180 struct brcmf_pub *drvr = ifp->drvr;
181 struct brcmf_bus *bus = drvr->bus_if;
182 const struct firmware *fw = NULL;
183 s32 err;
184
185 brcmf_dbg(TRACE, "Enter\n");
186
187 err = brcmf_bus_get_blob(bus, &fw, BRCMF_BLOB_CLM);
188 if (err || !fw) {
189 brcmf_info("no clm_blob available (err=%d), device may have limited channels available\n",
190 err);
191 return 0;
192 }
193
194 err = brcmf_c_download_blob(ifp, fw->data, fw->size,
195 "clmload", "clmload_status");
196
197 release_firmware(fw);
198 return err;
199 }
200
brcmf_c_process_txcap_blob(struct brcmf_if * ifp)201 static int brcmf_c_process_txcap_blob(struct brcmf_if *ifp)
202 {
203 struct brcmf_pub *drvr = ifp->drvr;
204 struct brcmf_bus *bus = drvr->bus_if;
205 const struct firmware *fw = NULL;
206 s32 err;
207
208 brcmf_dbg(TRACE, "Enter\n");
209
210 err = brcmf_bus_get_blob(bus, &fw, BRCMF_BLOB_TXCAP);
211 if (err || !fw) {
212 brcmf_info("no txcap_blob available (err=%d)\n", err);
213 return 0;
214 }
215
216 brcmf_info("TxCap blob found, loading\n");
217 err = brcmf_c_download_blob(ifp, fw->data, fw->size,
218 "txcapload", "txcapload_status");
219
220 release_firmware(fw);
221 return err;
222 }
223
brcmf_c_set_cur_etheraddr(struct brcmf_if * ifp,const u8 * addr)224 int brcmf_c_set_cur_etheraddr(struct brcmf_if *ifp, const u8 *addr)
225 {
226 s32 err;
227
228 err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", addr, ETH_ALEN);
229 if (err < 0)
230 bphy_err(ifp->drvr, "Setting cur_etheraddr failed, %d\n", err);
231
232 return err;
233 }
234
235 /* On some boards there is no eeprom to hold the nvram, in this case instead
236 * a board specific nvram is loaded from /lib/firmware. On most boards the
237 * macaddr setting in the /lib/firmware nvram file is ignored because the
238 * wifibt chip has a unique MAC programmed into the chip itself.
239 * But in some cases the actual MAC from the /lib/firmware nvram file gets
240 * used, leading to MAC conflicts.
241 * The MAC addresses in the troublesome nvram files seem to all come from
242 * the same nvram file template, so we only need to check for 1 known
243 * address to detect this.
244 */
245 static const u8 brcmf_default_mac_address[ETH_ALEN] = {
246 0x00, 0x90, 0x4c, 0xc5, 0x12, 0x38
247 };
248
brcmf_c_process_cal_blob(struct brcmf_if * ifp)249 static int brcmf_c_process_cal_blob(struct brcmf_if *ifp)
250 {
251 struct brcmf_pub *drvr = ifp->drvr;
252 struct brcmf_mp_device *settings = drvr->settings;
253 s32 err;
254
255 brcmf_dbg(TRACE, "Enter\n");
256
257 if (!settings->cal_blob || !settings->cal_size)
258 return 0;
259
260 brcmf_info("Calibration blob provided by platform, loading\n");
261 err = brcmf_c_download_blob(ifp, settings->cal_blob, settings->cal_size,
262 "calload", "calload_status");
263 return err;
264 }
265
brcmf_c_preinit_dcmds(struct brcmf_if * ifp)266 int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
267 {
268 struct brcmf_pub *drvr = ifp->drvr;
269 s8 eventmask[BRCMF_EVENTING_MASK_LEN];
270 u8 buf[BRCMF_DCMD_SMLEN];
271 struct brcmf_bus *bus;
272 struct brcmf_rev_info_le revinfo;
273 struct brcmf_rev_info *ri;
274 char *clmver;
275 char *ptr;
276 s32 err;
277
278 if (is_valid_ether_addr(ifp->mac_addr)) {
279 /* set mac address */
280 err = brcmf_c_set_cur_etheraddr(ifp, ifp->mac_addr);
281 if (err < 0)
282 goto done;
283 } else {
284 /* retrieve mac address */
285 err = brcmf_fil_iovar_data_get(ifp, "cur_etheraddr", ifp->mac_addr,
286 sizeof(ifp->mac_addr));
287 if (err < 0) {
288 bphy_err(drvr, "Retrieving cur_etheraddr failed, %d\n", err);
289 goto done;
290 }
291
292 if (ether_addr_equal_unaligned(ifp->mac_addr, brcmf_default_mac_address)) {
293 bphy_err(drvr, "Default MAC is used, replacing with random MAC to avoid conflicts\n");
294 eth_random_addr(ifp->mac_addr);
295 ifp->ndev->addr_assign_type = NET_ADDR_RANDOM;
296 err = brcmf_c_set_cur_etheraddr(ifp, ifp->mac_addr);
297 if (err < 0)
298 goto done;
299 }
300 }
301
302 memcpy(ifp->drvr->mac, ifp->mac_addr, sizeof(ifp->drvr->mac));
303 memcpy(ifp->drvr->wiphy->perm_addr, ifp->drvr->mac, ETH_ALEN);
304
305 bus = ifp->drvr->bus_if;
306 ri = &ifp->drvr->revinfo;
307
308 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_REVINFO,
309 &revinfo, sizeof(revinfo));
310 if (err < 0) {
311 bphy_err(drvr, "retrieving revision info failed, %d\n", err);
312 strscpy(ri->chipname, "UNKNOWN", sizeof(ri->chipname));
313 } else {
314 ri->vendorid = le32_to_cpu(revinfo.vendorid);
315 ri->deviceid = le32_to_cpu(revinfo.deviceid);
316 ri->radiorev = le32_to_cpu(revinfo.radiorev);
317 ri->corerev = le32_to_cpu(revinfo.corerev);
318 ri->boardid = le32_to_cpu(revinfo.boardid);
319 ri->boardvendor = le32_to_cpu(revinfo.boardvendor);
320 ri->boardrev = le32_to_cpu(revinfo.boardrev);
321 ri->driverrev = le32_to_cpu(revinfo.driverrev);
322 ri->ucoderev = le32_to_cpu(revinfo.ucoderev);
323 ri->bus = le32_to_cpu(revinfo.bus);
324 ri->phytype = le32_to_cpu(revinfo.phytype);
325 ri->phyrev = le32_to_cpu(revinfo.phyrev);
326 ri->anarev = le32_to_cpu(revinfo.anarev);
327 ri->chippkg = le32_to_cpu(revinfo.chippkg);
328 ri->nvramrev = le32_to_cpu(revinfo.nvramrev);
329
330 /* use revinfo if not known yet */
331 if (!bus->chip) {
332 bus->chip = le32_to_cpu(revinfo.chipnum);
333 bus->chiprev = le32_to_cpu(revinfo.chiprev);
334 }
335 }
336 ri->result = err;
337
338 if (bus->chip)
339 brcmf_chip_name(bus->chip, bus->chiprev,
340 ri->chipname, sizeof(ri->chipname));
341
342 /* Do any CLM downloading */
343 err = brcmf_c_process_clm_blob(ifp);
344 if (err < 0) {
345 bphy_err(drvr, "download CLM blob file failed, %d\n", err);
346 goto done;
347 }
348
349 /* Do TxCap downloading, if needed */
350 err = brcmf_c_process_txcap_blob(ifp);
351 if (err < 0) {
352 bphy_err(drvr, "download TxCap blob file failed, %d\n", err);
353 goto done;
354 }
355
356 /* Download external calibration blob, if available */
357 err = brcmf_c_process_cal_blob(ifp);
358 if (err < 0) {
359 bphy_err(drvr, "download calibration blob file failed, %d\n", err);
360 goto done;
361 }
362
363 /* query for 'ver' to get version info from firmware */
364 memset(buf, 0, sizeof(buf));
365 err = brcmf_fil_iovar_data_get(ifp, "ver", buf, sizeof(buf));
366 if (err < 0) {
367 bphy_err(drvr, "Retrieving version information failed, %d\n",
368 err);
369 goto done;
370 }
371 buf[sizeof(buf) - 1] = '\0';
372 ptr = (char *)buf;
373 strsep(&ptr, "\n");
374
375 /* Print fw version info */
376 brcmf_info("Firmware: %s %s\n", ri->chipname, buf);
377
378 /* locate firmware version number for ethtool */
379 ptr = strrchr(buf, ' ');
380 if (!ptr) {
381 bphy_err(drvr, "Retrieving version number failed");
382 goto done;
383 }
384 strscpy(ifp->drvr->fwver, ptr + 1, sizeof(ifp->drvr->fwver));
385
386 /* Query for 'clmver' to get CLM version info from firmware */
387 memset(buf, 0, sizeof(buf));
388 err = brcmf_fil_iovar_data_get(ifp, "clmver", buf, sizeof(buf));
389 if (err) {
390 brcmf_dbg(TRACE, "retrieving clmver failed, %d\n", err);
391 } else {
392 buf[sizeof(buf) - 1] = '\0';
393 clmver = (char *)buf;
394
395 /* Replace all newline/linefeed characters with space
396 * character
397 */
398 strreplace(clmver, '\n', ' ');
399
400 /* store CLM version for adding it to revinfo debugfs file */
401 memcpy(ifp->drvr->clmver, clmver, sizeof(ifp->drvr->clmver));
402
403 brcmf_dbg(INFO, "CLM version = %s\n", clmver);
404 }
405
406 /* set mpc */
407 err = brcmf_fil_iovar_int_set(ifp, "mpc", 1);
408 if (err) {
409 bphy_err(drvr, "failed setting mpc\n");
410 goto done;
411 }
412
413 brcmf_c_set_joinpref_default(ifp);
414
415 /* Setup event_msgs, enable E_IF */
416 err = brcmf_fil_iovar_data_get(ifp, "event_msgs", eventmask,
417 BRCMF_EVENTING_MASK_LEN);
418 if (err) {
419 bphy_err(drvr, "Get event_msgs error (%d)\n", err);
420 goto done;
421 }
422 setbit(eventmask, BRCMF_E_IF);
423 err = brcmf_fil_iovar_data_set(ifp, "event_msgs", eventmask,
424 BRCMF_EVENTING_MASK_LEN);
425 if (err) {
426 bphy_err(drvr, "Set event_msgs error (%d)\n", err);
427 goto done;
428 }
429
430 /* Setup default scan channel time */
431 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
432 BRCMF_DEFAULT_SCAN_CHANNEL_TIME);
433 if (err) {
434 bphy_err(drvr, "BRCMF_C_SET_SCAN_CHANNEL_TIME error (%d)\n",
435 err);
436 goto done;
437 }
438
439 /* Setup default scan unassoc time */
440 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
441 BRCMF_DEFAULT_SCAN_UNASSOC_TIME);
442 if (err) {
443 bphy_err(drvr, "BRCMF_C_SET_SCAN_UNASSOC_TIME error (%d)\n",
444 err);
445 goto done;
446 }
447
448 /* Enable tx beamforming, errors can be ignored (not supported) */
449 (void)brcmf_fil_iovar_int_set(ifp, "txbf", 1);
450 done:
451 return err;
452 }
453
454 #ifndef CONFIG_BRCM_TRACING
__brcmf_err(struct brcmf_bus * bus,const char * func,const char * fmt,...)455 void __brcmf_err(struct brcmf_bus *bus, const char *func, const char *fmt, ...)
456 {
457 struct va_format vaf;
458 va_list args;
459
460 va_start(args, fmt);
461
462 vaf.fmt = fmt;
463 vaf.va = &args;
464 if (bus)
465 dev_err(bus->dev, "%s: %pV", func, &vaf);
466 else
467 pr_err("%s: %pV", func, &vaf);
468
469 va_end(args);
470 }
471 #endif
472
473 #if defined(CONFIG_BRCM_TRACING) || defined(CONFIG_BRCMDBG)
__brcmf_dbg(u32 level,const char * func,const char * fmt,...)474 void __brcmf_dbg(u32 level, const char *func, const char *fmt, ...)
475 {
476 struct va_format vaf = {
477 .fmt = fmt,
478 };
479 va_list args;
480
481 va_start(args, fmt);
482 vaf.va = &args;
483 if (brcmf_msg_level & level)
484 pr_debug("%s %pV", func, &vaf);
485 trace_brcmf_dbg(level, func, &vaf);
486 va_end(args);
487 }
488 #endif
489
brcmf_mp_attach(void)490 static void brcmf_mp_attach(void)
491 {
492 /* If module param firmware path is set then this will always be used,
493 * if not set then if available use the platform data version. To make
494 * sure it gets initialized at all, always copy the module param version
495 */
496 strscpy(brcmf_mp_global.firmware_path, brcmf_firmware_path,
497 BRCMF_FW_ALTPATH_LEN);
498 if ((brcmfmac_pdata) && (brcmfmac_pdata->fw_alternative_path) &&
499 (brcmf_mp_global.firmware_path[0] == '\0')) {
500 strscpy(brcmf_mp_global.firmware_path,
501 brcmfmac_pdata->fw_alternative_path,
502 BRCMF_FW_ALTPATH_LEN);
503 }
504 }
505
brcmf_get_module_param(struct device * dev,enum brcmf_bus_type bus_type,u32 chip,u32 chiprev)506 struct brcmf_mp_device *brcmf_get_module_param(struct device *dev,
507 enum brcmf_bus_type bus_type,
508 u32 chip, u32 chiprev)
509 {
510 struct brcmf_mp_device *settings;
511 struct brcmfmac_pd_device *device_pd;
512 bool found;
513 int i;
514
515 brcmf_dbg(INFO, "Enter, bus=%d, chip=%d, rev=%d\n", bus_type, chip,
516 chiprev);
517 settings = kzalloc(sizeof(*settings), GFP_ATOMIC);
518 if (!settings)
519 return NULL;
520
521 /* start by using the module paramaters */
522 settings->p2p_enable = !!brcmf_p2p_enable;
523 settings->feature_disable = brcmf_feature_disable;
524 settings->fcmode = brcmf_fcmode;
525 settings->roamoff = !!brcmf_roamoff;
526 settings->iapp = !!brcmf_iapp_enable;
527 #ifdef DEBUG
528 settings->ignore_probe_fail = !!brcmf_ignore_probe_fail;
529 #endif
530
531 if (bus_type == BRCMF_BUSTYPE_SDIO)
532 settings->bus.sdio.txglomsz = brcmf_sdiod_txglomsz;
533
534 /* See if there is any device specific platform data configured */
535 found = false;
536 if (brcmfmac_pdata) {
537 for (i = 0; i < brcmfmac_pdata->device_count; i++) {
538 device_pd = &brcmfmac_pdata->devices[i];
539 if ((device_pd->bus_type == bus_type) &&
540 (device_pd->id == chip) &&
541 ((device_pd->rev == chiprev) ||
542 (device_pd->rev == -1))) {
543 brcmf_dbg(INFO, "Platform data for device found\n");
544 settings->country_codes =
545 device_pd->country_codes;
546 if (device_pd->bus_type == BRCMF_BUSTYPE_SDIO)
547 memcpy(&settings->bus.sdio,
548 &device_pd->bus.sdio,
549 sizeof(settings->bus.sdio));
550 found = true;
551 break;
552 }
553 }
554 }
555 if (!found) {
556 /* No platform data for this device, try OF and DMI data */
557 brcmf_dmi_probe(settings, chip, chiprev);
558 brcmf_of_probe(dev, bus_type, settings);
559 brcmf_acpi_probe(dev, bus_type, settings);
560 }
561 return settings;
562 }
563
brcmf_release_module_param(struct brcmf_mp_device * module_param)564 void brcmf_release_module_param(struct brcmf_mp_device *module_param)
565 {
566 kfree(module_param);
567 }
568
brcmf_common_pd_probe(struct platform_device * pdev)569 static int __init brcmf_common_pd_probe(struct platform_device *pdev)
570 {
571 brcmf_dbg(INFO, "Enter\n");
572
573 brcmfmac_pdata = dev_get_platdata(&pdev->dev);
574
575 if (brcmfmac_pdata->power_on)
576 brcmfmac_pdata->power_on();
577
578 return 0;
579 }
580
brcmf_common_pd_remove(struct platform_device * pdev)581 static int brcmf_common_pd_remove(struct platform_device *pdev)
582 {
583 brcmf_dbg(INFO, "Enter\n");
584
585 if (brcmfmac_pdata->power_off)
586 brcmfmac_pdata->power_off();
587
588 return 0;
589 }
590
591 static struct platform_driver brcmf_pd = {
592 .remove = brcmf_common_pd_remove,
593 .driver = {
594 .name = BRCMFMAC_PDATA_NAME,
595 }
596 };
597
brcmfmac_module_init(void)598 static int __init brcmfmac_module_init(void)
599 {
600 int err;
601
602 /* Get the platform data (if available) for our devices */
603 err = platform_driver_probe(&brcmf_pd, brcmf_common_pd_probe);
604 if (err == -ENODEV)
605 brcmf_dbg(INFO, "No platform data available.\n");
606
607 /* Initialize global module paramaters */
608 brcmf_mp_attach();
609
610 /* Continue the initialization by registering the different busses */
611 err = brcmf_core_init();
612 if (err) {
613 if (brcmfmac_pdata)
614 platform_driver_unregister(&brcmf_pd);
615 }
616
617 return err;
618 }
619
brcmfmac_module_exit(void)620 static void __exit brcmfmac_module_exit(void)
621 {
622 brcmf_core_exit();
623 if (brcmfmac_pdata)
624 platform_driver_unregister(&brcmf_pd);
625 }
626
627 module_init(brcmfmac_module_init);
628 module_exit(brcmfmac_module_exit);
629
630