2 * Copyright (c) 2012 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 /* FWIL is the Firmware Interface Layer. In this module the support functions
18 * are located to set and get variables to and from the firmware.
21 #include <linux/kernel.h>
22 #include <linux/netdevice.h>
23 #include <brcmu_utils.h>
24 #include <brcmu_wifi.h>
28 #include "tracepoint.h"
33 #define MAX_HEX_DUMP_LEN 64
36 static const char * const brcmf_fil_errstr[] = {
56 "BCME_OUTOFRANGECHAN",
68 "BCME_WME_NOT_ENABLED",
69 "BCME_TSPEC_NOTFOUND",
70 "BCME_ACM_NOTSUPPORTED",
71 "BCME_NOT_WME_ASSOCIATION",
78 "BCME_NMODE_DISABLED",
83 "BCME_SERIAL_PORT_ERR",
92 static const char *brcmf_fil_get_errstr(u32 err)
94 if (err >= ARRAY_SIZE(brcmf_fil_errstr))
97 return brcmf_fil_errstr[err];
100 static const char *brcmf_fil_get_errstr(u32 err)
107 brcmf_fil_cmd_data(struct brcmf_if *ifp, u32 cmd, void *data, u32 len, bool set)
109 struct brcmf_pub *drvr = ifp->drvr;
112 if (drvr->bus_if->state != BRCMF_BUS_UP) {
113 brcmf_err("bus is down. we have nothing to do.\n");
118 len = min_t(uint, len, BRCMF_DCMD_MAXLEN);
120 err = brcmf_proto_set_dcmd(drvr, ifp->ifidx, cmd, data, len);
122 err = brcmf_proto_query_dcmd(drvr, ifp->ifidx, cmd, data, len);
127 brcmf_dbg(FIL, "Failed: %s (%d)\n",
128 brcmf_fil_get_errstr((u32)(-err)), err);
134 brcmf_fil_cmd_data_set(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
138 mutex_lock(&ifp->drvr->proto_block);
140 brcmf_dbg(FIL, "ifidx=%d, cmd=%d, len=%d\n", ifp->ifidx, cmd, len);
141 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
142 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
144 err = brcmf_fil_cmd_data(ifp, cmd, data, len, true);
145 mutex_unlock(&ifp->drvr->proto_block);
151 brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
155 mutex_lock(&ifp->drvr->proto_block);
156 err = brcmf_fil_cmd_data(ifp, cmd, data, len, false);
158 brcmf_dbg(FIL, "ifidx=%d, cmd=%d, len=%d\n", ifp->ifidx, cmd, len);
159 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
160 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
162 mutex_unlock(&ifp->drvr->proto_block);
169 brcmf_fil_cmd_int_set(struct brcmf_if *ifp, u32 cmd, u32 data)
172 __le32 data_le = cpu_to_le32(data);
174 mutex_lock(&ifp->drvr->proto_block);
175 brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, data);
176 err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), true);
177 mutex_unlock(&ifp->drvr->proto_block);
183 brcmf_fil_cmd_int_get(struct brcmf_if *ifp, u32 cmd, u32 *data)
186 __le32 data_le = cpu_to_le32(*data);
188 mutex_lock(&ifp->drvr->proto_block);
189 err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), false);
190 mutex_unlock(&ifp->drvr->proto_block);
191 *data = le32_to_cpu(data_le);
192 brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, *data);
198 brcmf_create_iovar(char *name, const char *data, u32 datalen,
199 char *buf, u32 buflen)
203 len = strlen(name) + 1;
205 if ((len + datalen) > buflen)
208 memcpy(buf, name, len);
210 /* append data onto the end of the name string */
212 memcpy(&buf[len], data, datalen);
214 return len + datalen;
219 brcmf_fil_iovar_data_set(struct brcmf_if *ifp, char *name, const void *data,
222 struct brcmf_pub *drvr = ifp->drvr;
226 mutex_lock(&drvr->proto_block);
228 brcmf_dbg(FIL, "ifidx=%d, name=%s, len=%d\n", ifp->ifidx, name, len);
229 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
230 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
232 buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
233 sizeof(drvr->proto_buf));
235 err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
239 brcmf_err("Creating iovar failed\n");
242 mutex_unlock(&drvr->proto_block);
247 brcmf_fil_iovar_data_get(struct brcmf_if *ifp, char *name, void *data,
250 struct brcmf_pub *drvr = ifp->drvr;
254 mutex_lock(&drvr->proto_block);
256 buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
257 sizeof(drvr->proto_buf));
259 err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
262 memcpy(data, drvr->proto_buf, len);
265 brcmf_err("Creating iovar failed\n");
268 brcmf_dbg(FIL, "ifidx=%d, name=%s, len=%d\n", ifp->ifidx, name, len);
269 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
270 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
272 mutex_unlock(&drvr->proto_block);
277 brcmf_fil_iovar_int_set(struct brcmf_if *ifp, char *name, u32 data)
279 __le32 data_le = cpu_to_le32(data);
281 return brcmf_fil_iovar_data_set(ifp, name, &data_le, sizeof(data_le));
285 brcmf_fil_iovar_int_get(struct brcmf_if *ifp, char *name, u32 *data)
287 __le32 data_le = cpu_to_le32(*data);
290 err = brcmf_fil_iovar_data_get(ifp, name, &data_le, sizeof(data_le));
292 *data = le32_to_cpu(data_le);
297 brcmf_create_bsscfg(s32 bsscfgidx, char *name, char *data, u32 datalen,
298 char *buf, u32 buflen)
300 const s8 *prefix = "bsscfg:";
308 return brcmf_create_iovar(name, data, datalen, buf, buflen);
310 prefixlen = strlen(prefix);
311 namelen = strlen(name) + 1; /* lengh of iovar name + null */
312 iolen = prefixlen + namelen + sizeof(bsscfgidx_le) + datalen;
314 if (buflen < iolen) {
315 brcmf_err("buffer is too short\n");
321 /* copy prefix, no null */
322 memcpy(p, prefix, prefixlen);
325 /* copy iovar name including null */
326 memcpy(p, name, namelen);
329 /* bss config index as first data */
330 bsscfgidx_le = cpu_to_le32(bsscfgidx);
331 memcpy(p, &bsscfgidx_le, sizeof(bsscfgidx_le));
332 p += sizeof(bsscfgidx_le);
334 /* parameter buffer follows */
336 memcpy(p, data, datalen);
342 brcmf_fil_bsscfg_data_set(struct brcmf_if *ifp, char *name,
345 struct brcmf_pub *drvr = ifp->drvr;
349 mutex_lock(&drvr->proto_block);
351 brcmf_dbg(FIL, "ifidx=%d, bsscfgidx=%d, name=%s, len=%d\n", ifp->ifidx,
352 ifp->bsscfgidx, name, len);
353 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
354 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
356 buflen = brcmf_create_bsscfg(ifp->bsscfgidx, name, data, len,
357 drvr->proto_buf, sizeof(drvr->proto_buf));
359 err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
363 brcmf_err("Creating bsscfg failed\n");
366 mutex_unlock(&drvr->proto_block);
371 brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, char *name,
374 struct brcmf_pub *drvr = ifp->drvr;
378 mutex_lock(&drvr->proto_block);
380 buflen = brcmf_create_bsscfg(ifp->bsscfgidx, name, data, len,
381 drvr->proto_buf, sizeof(drvr->proto_buf));
383 err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
386 memcpy(data, drvr->proto_buf, len);
389 brcmf_err("Creating bsscfg failed\n");
391 brcmf_dbg(FIL, "ifidx=%d, bsscfgidx=%d, name=%s, len=%d\n", ifp->ifidx,
392 ifp->bsscfgidx, name, len);
393 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
394 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
396 mutex_unlock(&drvr->proto_block);
402 brcmf_fil_bsscfg_int_set(struct brcmf_if *ifp, char *name, u32 data)
404 __le32 data_le = cpu_to_le32(data);
406 return brcmf_fil_bsscfg_data_set(ifp, name, &data_le,
411 brcmf_fil_bsscfg_int_get(struct brcmf_if *ifp, char *name, u32 *data)
413 __le32 data_le = cpu_to_le32(*data);
416 err = brcmf_fil_bsscfg_data_get(ifp, name, &data_le,
419 *data = le32_to_cpu(data_le);