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>
31 #define MAX_HEX_DUMP_LEN 64
35 brcmf_fil_cmd_data(struct brcmf_if *ifp, u32 cmd, void *data, u32 len, bool set)
37 struct brcmf_pub *drvr = ifp->drvr;
40 if (drvr->bus_if->state != BRCMF_BUS_DATA) {
41 brcmf_err("bus is down. we have nothing to do.\n");
46 len = min_t(uint, len, BRCMF_DCMD_MAXLEN);
48 err = brcmf_proto_cdc_set_dcmd(drvr, ifp->ifidx, cmd, data,
51 err = brcmf_proto_cdc_query_dcmd(drvr, ifp->ifidx, cmd, data,
57 brcmf_err("Failed err=%d\n", err);
63 brcmf_fil_cmd_data_set(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
67 mutex_lock(&ifp->drvr->proto_block);
69 brcmf_dbg(FIL, "cmd=%d, len=%d\n", cmd, len);
70 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
71 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
73 err = brcmf_fil_cmd_data(ifp, cmd, data, len, true);
74 mutex_unlock(&ifp->drvr->proto_block);
80 brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
84 mutex_lock(&ifp->drvr->proto_block);
85 err = brcmf_fil_cmd_data(ifp, cmd, data, len, false);
87 brcmf_dbg(FIL, "cmd=%d, len=%d\n", cmd, len);
88 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
89 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
91 mutex_unlock(&ifp->drvr->proto_block);
98 brcmf_fil_cmd_int_set(struct brcmf_if *ifp, u32 cmd, u32 data)
101 __le32 data_le = cpu_to_le32(data);
103 mutex_lock(&ifp->drvr->proto_block);
104 brcmf_dbg(FIL, "cmd=%d, value=%d\n", cmd, data);
105 err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), true);
106 mutex_unlock(&ifp->drvr->proto_block);
112 brcmf_fil_cmd_int_get(struct brcmf_if *ifp, u32 cmd, u32 *data)
115 __le32 data_le = cpu_to_le32(*data);
117 mutex_lock(&ifp->drvr->proto_block);
118 err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), false);
119 mutex_unlock(&ifp->drvr->proto_block);
120 *data = le32_to_cpu(data_le);
121 brcmf_dbg(FIL, "cmd=%d, value=%d\n", cmd, *data);
127 brcmf_create_iovar(char *name, char *data, u32 datalen, char *buf, u32 buflen)
131 len = strlen(name) + 1;
133 if ((len + datalen) > buflen)
136 memcpy(buf, name, len);
138 /* append data onto the end of the name string */
140 memcpy(&buf[len], data, datalen);
142 return len + datalen;
147 brcmf_fil_iovar_data_set(struct brcmf_if *ifp, char *name, void *data,
150 struct brcmf_pub *drvr = ifp->drvr;
154 mutex_lock(&drvr->proto_block);
156 brcmf_dbg(FIL, "name=%s, len=%d\n", name, len);
157 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
158 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
160 buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
161 sizeof(drvr->proto_buf));
163 err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
167 brcmf_err("Creating iovar failed\n");
170 mutex_unlock(&drvr->proto_block);
175 brcmf_fil_iovar_data_get(struct brcmf_if *ifp, char *name, void *data,
178 struct brcmf_pub *drvr = ifp->drvr;
182 mutex_lock(&drvr->proto_block);
184 buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
185 sizeof(drvr->proto_buf));
187 err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
190 memcpy(data, drvr->proto_buf, len);
193 brcmf_err("Creating iovar failed\n");
196 brcmf_dbg(FIL, "name=%s, len=%d\n", name, len);
197 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
198 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
200 mutex_unlock(&drvr->proto_block);
205 brcmf_fil_iovar_int_set(struct brcmf_if *ifp, char *name, u32 data)
207 __le32 data_le = cpu_to_le32(data);
209 return brcmf_fil_iovar_data_set(ifp, name, &data_le, sizeof(data_le));
213 brcmf_fil_iovar_int_get(struct brcmf_if *ifp, char *name, u32 *data)
215 __le32 data_le = cpu_to_le32(*data);
218 err = brcmf_fil_iovar_data_get(ifp, name, &data_le, sizeof(data_le));
220 *data = le32_to_cpu(data_le);
225 brcmf_create_bsscfg(s32 bssidx, char *name, char *data, u32 datalen, char *buf,
228 const s8 *prefix = "bsscfg:";
236 return brcmf_create_iovar(name, data, datalen, buf, buflen);
238 prefixlen = strlen(prefix);
239 namelen = strlen(name) + 1; /* lengh of iovar name + null */
240 iolen = prefixlen + namelen + sizeof(bssidx_le) + datalen;
242 if (buflen < iolen) {
243 brcmf_err("buffer is too short\n");
249 /* copy prefix, no null */
250 memcpy(p, prefix, prefixlen);
253 /* copy iovar name including null */
254 memcpy(p, name, namelen);
257 /* bss config index as first data */
258 bssidx_le = cpu_to_le32(bssidx);
259 memcpy(p, &bssidx_le, sizeof(bssidx_le));
260 p += sizeof(bssidx_le);
262 /* parameter buffer follows */
264 memcpy(p, data, datalen);
270 brcmf_fil_bsscfg_data_set(struct brcmf_if *ifp, char *name,
273 struct brcmf_pub *drvr = ifp->drvr;
277 mutex_lock(&drvr->proto_block);
279 brcmf_dbg(FIL, "bssidx=%d, name=%s, len=%d\n", ifp->bssidx, name, len);
280 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
281 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
283 buflen = brcmf_create_bsscfg(ifp->bssidx, name, data, len,
284 drvr->proto_buf, sizeof(drvr->proto_buf));
286 err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
290 brcmf_err("Creating bsscfg failed\n");
293 mutex_unlock(&drvr->proto_block);
298 brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, char *name,
301 struct brcmf_pub *drvr = ifp->drvr;
305 mutex_lock(&drvr->proto_block);
307 buflen = brcmf_create_bsscfg(ifp->bssidx, name, data, len,
308 drvr->proto_buf, sizeof(drvr->proto_buf));
310 err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
313 memcpy(data, drvr->proto_buf, len);
316 brcmf_err("Creating bsscfg failed\n");
318 brcmf_dbg(FIL, "bssidx=%d, name=%s, len=%d\n", ifp->bssidx, name, len);
319 brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
320 min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
322 mutex_unlock(&drvr->proto_block);
328 brcmf_fil_bsscfg_int_set(struct brcmf_if *ifp, char *name, u32 data)
330 __le32 data_le = cpu_to_le32(data);
332 return brcmf_fil_bsscfg_data_set(ifp, name, &data_le,
337 brcmf_fil_bsscfg_int_get(struct brcmf_if *ifp, char *name, u32 *data)
339 __le32 data_le = cpu_to_le32(*data);
342 err = brcmf_fil_bsscfg_data_get(ifp, name, &data_le,
345 *data = le32_to_cpu(data_le);