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"
32 #define MAX_HEX_DUMP_LEN 64
36 brcmf_fil_cmd_data(struct brcmf_if *ifp, u32 cmd, void *data, u32 len, bool set)
38 struct brcmf_pub *drvr = ifp->drvr;
41 if (drvr->bus_if->state != BRCMF_BUS_DATA) {
42 brcmf_err("bus is down. we have nothing to do.\n");
47 len = min_t(uint, len, BRCMF_DCMD_MAXLEN);
49 err = brcmf_proto_cdc_set_dcmd(drvr, ifp->ifidx, cmd, data,
52 err = brcmf_proto_cdc_query_dcmd(drvr, ifp->ifidx, cmd, data,
58 brcmf_err("Failed err=%d\n", err);
64 brcmf_fil_cmd_data_set(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
68 mutex_lock(&ifp->drvr->proto_block);
70 brcmf_dbg(FIL, "cmd=%d, len=%d\n", cmd, len);
71 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
72 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
74 err = brcmf_fil_cmd_data(ifp, cmd, data, len, true);
75 mutex_unlock(&ifp->drvr->proto_block);
81 brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
85 mutex_lock(&ifp->drvr->proto_block);
86 err = brcmf_fil_cmd_data(ifp, cmd, data, len, false);
88 brcmf_dbg(FIL, "cmd=%d, len=%d\n", cmd, len);
89 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
90 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
92 mutex_unlock(&ifp->drvr->proto_block);
99 brcmf_fil_cmd_int_set(struct brcmf_if *ifp, u32 cmd, u32 data)
102 __le32 data_le = cpu_to_le32(data);
104 mutex_lock(&ifp->drvr->proto_block);
105 brcmf_dbg(FIL, "cmd=%d, value=%d\n", cmd, data);
106 err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), true);
107 mutex_unlock(&ifp->drvr->proto_block);
113 brcmf_fil_cmd_int_get(struct brcmf_if *ifp, u32 cmd, u32 *data)
116 __le32 data_le = cpu_to_le32(*data);
118 mutex_lock(&ifp->drvr->proto_block);
119 err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), false);
120 mutex_unlock(&ifp->drvr->proto_block);
121 *data = le32_to_cpu(data_le);
122 brcmf_dbg(FIL, "cmd=%d, value=%d\n", cmd, *data);
128 brcmf_create_iovar(char *name, char *data, u32 datalen, char *buf, u32 buflen)
132 len = strlen(name) + 1;
134 if ((len + datalen) > buflen)
137 memcpy(buf, name, len);
139 /* append data onto the end of the name string */
141 memcpy(&buf[len], data, datalen);
143 return len + datalen;
148 brcmf_fil_iovar_data_set(struct brcmf_if *ifp, char *name, void *data,
151 struct brcmf_pub *drvr = ifp->drvr;
155 mutex_lock(&drvr->proto_block);
157 brcmf_dbg(FIL, "name=%s, len=%d\n", name, len);
158 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
159 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
161 buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
162 sizeof(drvr->proto_buf));
164 err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
168 brcmf_err("Creating iovar failed\n");
171 mutex_unlock(&drvr->proto_block);
176 brcmf_fil_iovar_data_get(struct brcmf_if *ifp, char *name, void *data,
179 struct brcmf_pub *drvr = ifp->drvr;
183 mutex_lock(&drvr->proto_block);
185 buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
186 sizeof(drvr->proto_buf));
188 err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
191 memcpy(data, drvr->proto_buf, len);
194 brcmf_err("Creating iovar failed\n");
197 brcmf_dbg(FIL, "name=%s, len=%d\n", name, len);
198 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
199 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
201 mutex_unlock(&drvr->proto_block);
206 brcmf_fil_iovar_int_set(struct brcmf_if *ifp, char *name, u32 data)
208 __le32 data_le = cpu_to_le32(data);
210 return brcmf_fil_iovar_data_set(ifp, name, &data_le, sizeof(data_le));
214 brcmf_fil_iovar_int_get(struct brcmf_if *ifp, char *name, u32 *data)
216 __le32 data_le = cpu_to_le32(*data);
219 err = brcmf_fil_iovar_data_get(ifp, name, &data_le, sizeof(data_le));
221 *data = le32_to_cpu(data_le);
226 brcmf_create_bsscfg(s32 bssidx, char *name, char *data, u32 datalen, char *buf,
229 const s8 *prefix = "bsscfg:";
237 return brcmf_create_iovar(name, data, datalen, buf, buflen);
239 prefixlen = strlen(prefix);
240 namelen = strlen(name) + 1; /* lengh of iovar name + null */
241 iolen = prefixlen + namelen + sizeof(bssidx_le) + datalen;
243 if (buflen < iolen) {
244 brcmf_err("buffer is too short\n");
250 /* copy prefix, no null */
251 memcpy(p, prefix, prefixlen);
254 /* copy iovar name including null */
255 memcpy(p, name, namelen);
258 /* bss config index as first data */
259 bssidx_le = cpu_to_le32(bssidx);
260 memcpy(p, &bssidx_le, sizeof(bssidx_le));
261 p += sizeof(bssidx_le);
263 /* parameter buffer follows */
265 memcpy(p, data, datalen);
271 brcmf_fil_bsscfg_data_set(struct brcmf_if *ifp, char *name,
274 struct brcmf_pub *drvr = ifp->drvr;
278 mutex_lock(&drvr->proto_block);
280 brcmf_dbg(FIL, "bssidx=%d, name=%s, len=%d\n", ifp->bssidx, name, len);
281 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
282 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
284 buflen = brcmf_create_bsscfg(ifp->bssidx, name, data, len,
285 drvr->proto_buf, sizeof(drvr->proto_buf));
287 err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
291 brcmf_err("Creating bsscfg failed\n");
294 mutex_unlock(&drvr->proto_block);
299 brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, char *name,
302 struct brcmf_pub *drvr = ifp->drvr;
306 mutex_lock(&drvr->proto_block);
308 buflen = brcmf_create_bsscfg(ifp->bssidx, name, data, len,
309 drvr->proto_buf, sizeof(drvr->proto_buf));
311 err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
314 memcpy(data, drvr->proto_buf, len);
317 brcmf_err("Creating bsscfg failed\n");
319 brcmf_dbg(FIL, "bssidx=%d, name=%s, len=%d\n", ifp->bssidx, name, len);
320 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
321 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
323 mutex_unlock(&drvr->proto_block);
329 brcmf_fil_bsscfg_int_set(struct brcmf_if *ifp, char *name, u32 data)
331 __le32 data_le = cpu_to_le32(data);
333 return brcmf_fil_bsscfg_data_set(ifp, name, &data_le,
338 brcmf_fil_bsscfg_int_get(struct brcmf_if *ifp, char *name, u32 *data)
340 __le32 data_le = cpu_to_le32(*data);
343 err = brcmf_fil_bsscfg_data_get(ifp, name, &data_le,
346 *data = le32_to_cpu(data_le);