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_DATA) {
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);
133 brcmf_fil_cmd_data_set(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
137 mutex_lock(&ifp->drvr->proto_block);
139 brcmf_dbg(FIL, "ifidx=%d, cmd=%d, len=%d\n", ifp->ifidx, cmd, len);
140 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
141 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
143 err = brcmf_fil_cmd_data(ifp, cmd, data, len, true);
144 mutex_unlock(&ifp->drvr->proto_block);
150 brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
154 mutex_lock(&ifp->drvr->proto_block);
155 err = brcmf_fil_cmd_data(ifp, cmd, data, len, false);
157 brcmf_dbg(FIL, "ifidx=%d, cmd=%d, len=%d\n", ifp->ifidx, cmd, len);
158 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
159 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
161 mutex_unlock(&ifp->drvr->proto_block);
168 brcmf_fil_cmd_int_set(struct brcmf_if *ifp, u32 cmd, u32 data)
171 __le32 data_le = cpu_to_le32(data);
173 mutex_lock(&ifp->drvr->proto_block);
174 brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, data);
175 err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), true);
176 mutex_unlock(&ifp->drvr->proto_block);
182 brcmf_fil_cmd_int_get(struct brcmf_if *ifp, u32 cmd, u32 *data)
185 __le32 data_le = cpu_to_le32(*data);
187 mutex_lock(&ifp->drvr->proto_block);
188 err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), false);
189 mutex_unlock(&ifp->drvr->proto_block);
190 *data = le32_to_cpu(data_le);
191 brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, *data);
197 brcmf_create_iovar(char *name, const char *data, u32 datalen,
198 char *buf, u32 buflen)
202 len = strlen(name) + 1;
204 if ((len + datalen) > buflen)
207 memcpy(buf, name, len);
209 /* append data onto the end of the name string */
211 memcpy(&buf[len], data, datalen);
213 return len + datalen;
218 brcmf_fil_iovar_data_set(struct brcmf_if *ifp, char *name, const void *data,
221 struct brcmf_pub *drvr = ifp->drvr;
225 mutex_lock(&drvr->proto_block);
227 brcmf_dbg(FIL, "ifidx=%d, name=%s, len=%d\n", ifp->ifidx, name, len);
228 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
229 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
231 buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
232 sizeof(drvr->proto_buf));
234 err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
238 brcmf_err("Creating iovar failed\n");
241 mutex_unlock(&drvr->proto_block);
246 brcmf_fil_iovar_data_get(struct brcmf_if *ifp, char *name, void *data,
249 struct brcmf_pub *drvr = ifp->drvr;
253 mutex_lock(&drvr->proto_block);
255 buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
256 sizeof(drvr->proto_buf));
258 err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
261 memcpy(data, drvr->proto_buf, len);
264 brcmf_err("Creating iovar failed\n");
267 brcmf_dbg(FIL, "ifidx=%d, name=%s, len=%d\n", ifp->ifidx, name, len);
268 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
269 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
271 mutex_unlock(&drvr->proto_block);
276 brcmf_fil_iovar_int_set(struct brcmf_if *ifp, char *name, u32 data)
278 __le32 data_le = cpu_to_le32(data);
280 return brcmf_fil_iovar_data_set(ifp, name, &data_le, sizeof(data_le));
284 brcmf_fil_iovar_int_get(struct brcmf_if *ifp, char *name, u32 *data)
286 __le32 data_le = cpu_to_le32(*data);
289 err = brcmf_fil_iovar_data_get(ifp, name, &data_le, sizeof(data_le));
291 *data = le32_to_cpu(data_le);
296 brcmf_create_bsscfg(s32 bssidx, char *name, char *data, u32 datalen, char *buf,
299 const s8 *prefix = "bsscfg:";
307 return brcmf_create_iovar(name, data, datalen, buf, buflen);
309 prefixlen = strlen(prefix);
310 namelen = strlen(name) + 1; /* lengh of iovar name + null */
311 iolen = prefixlen + namelen + sizeof(bssidx_le) + datalen;
313 if (buflen < iolen) {
314 brcmf_err("buffer is too short\n");
320 /* copy prefix, no null */
321 memcpy(p, prefix, prefixlen);
324 /* copy iovar name including null */
325 memcpy(p, name, namelen);
328 /* bss config index as first data */
329 bssidx_le = cpu_to_le32(bssidx);
330 memcpy(p, &bssidx_le, sizeof(bssidx_le));
331 p += sizeof(bssidx_le);
333 /* parameter buffer follows */
335 memcpy(p, data, datalen);
341 brcmf_fil_bsscfg_data_set(struct brcmf_if *ifp, char *name,
344 struct brcmf_pub *drvr = ifp->drvr;
348 mutex_lock(&drvr->proto_block);
350 brcmf_dbg(FIL, "ifidx=%d, bssidx=%d, name=%s, len=%d\n", ifp->ifidx,
351 ifp->bssidx, name, len);
352 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
353 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
355 buflen = brcmf_create_bsscfg(ifp->bssidx, name, data, len,
356 drvr->proto_buf, sizeof(drvr->proto_buf));
358 err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
362 brcmf_err("Creating bsscfg failed\n");
365 mutex_unlock(&drvr->proto_block);
370 brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, char *name,
373 struct brcmf_pub *drvr = ifp->drvr;
377 mutex_lock(&drvr->proto_block);
379 buflen = brcmf_create_bsscfg(ifp->bssidx, name, data, len,
380 drvr->proto_buf, sizeof(drvr->proto_buf));
382 err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
385 memcpy(data, drvr->proto_buf, len);
388 brcmf_err("Creating bsscfg failed\n");
390 brcmf_dbg(FIL, "ifidx=%d, bssidx=%d, name=%s, len=%d\n", ifp->ifidx,
391 ifp->bssidx, name, len);
392 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
393 min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
395 mutex_unlock(&drvr->proto_block);
401 brcmf_fil_bsscfg_int_set(struct brcmf_if *ifp, char *name, u32 data)
403 __le32 data_le = cpu_to_le32(data);
405 return brcmf_fil_bsscfg_data_set(ifp, name, &data_le,
410 brcmf_fil_bsscfg_int_get(struct brcmf_if *ifp, char *name, u32 *data)
412 __le32 data_le = cpu_to_le32(*data);
415 err = brcmf_fil_bsscfg_data_get(ifp, name, &data_le,
418 *data = le32_to_cpu(data_le);