2 * Copyright (c) 2010 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 #include <linux/kernel.h>
18 #include <linux/string.h>
19 #include <linux/netdevice.h>
20 #include <brcmu_wifi.h>
21 #include <brcmu_utils.h>
24 #include "dhd_proto.h"
27 #include "tracepoint.h"
29 #define PKTFILTER_BUF_SIZE 128
30 #define BRCMF_ARPOL_MODE 0xb /* agent|snoop|peer_autoreply */
31 #define BRCMF_DEFAULT_BCN_TIMEOUT 3
32 #define BRCMF_DEFAULT_SCAN_CHANNEL_TIME 40
33 #define BRCMF_DEFAULT_SCAN_UNASSOC_TIME 40
34 #define BRCMF_DEFAULT_PACKET_FILTER "100 0 0 0 0x01 0x00"
37 static const char brcmf_version[] =
38 "Dongle Host Driver, version " BRCMF_VERSION_STR "\nCompiled on "
39 __DATE__ " at " __TIME__;
41 static const char brcmf_version[] =
42 "Dongle Host Driver, version " BRCMF_VERSION_STR;
46 bool brcmf_c_prec_enq(struct device *dev, struct pktq *q,
47 struct sk_buff *pkt, int prec)
50 int eprec = -1; /* precedence to evict from */
52 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
53 struct brcmf_pub *drvr = bus_if->drvr;
55 /* Fast case, precedence queue is not full and we are also not
56 * exceeding total queue length
58 if (!pktq_pfull(q, prec) && !pktq_full(q)) {
59 brcmu_pktq_penq(q, prec, pkt);
63 /* Determine precedence from which to evict packet, if any */
64 if (pktq_pfull(q, prec))
66 else if (pktq_full(q)) {
67 p = brcmu_pktq_peek_tail(q, &eprec);
74 /* Detect queueing to unconfigured precedence */
75 discard_oldest = ac_bitmap_tst(drvr->wme_dp, eprec);
76 if (eprec == prec && !discard_oldest)
77 return false; /* refuse newer (incoming) packet */
78 /* Evict packet according to discard policy */
79 p = discard_oldest ? brcmu_pktq_pdeq(q, eprec) :
80 brcmu_pktq_pdeq_tail(q, eprec);
82 brcmf_err("brcmu_pktq_penq() failed, oldest %d\n",
85 brcmu_pkt_buf_free_skb(p);
89 p = brcmu_pktq_penq(q, prec, pkt);
91 brcmf_err("brcmu_pktq_penq() failed\n");
96 /* Convert user's input in hex pattern to byte-size mask */
97 static int brcmf_c_pattern_atoh(char *src, char *dst)
100 if (strncmp(src, "0x", 2) != 0 && strncmp(src, "0X", 2) != 0) {
101 brcmf_err("Mask invalid format. Needs to start with 0x\n");
104 src = src + 2; /* Skip past 0x */
105 if (strlen(src) % 2 != 0) {
106 brcmf_err("Mask invalid format. Length must be even.\n");
109 for (i = 0; *src != '\0'; i++) {
112 strncpy(num, src, 2);
114 if (kstrtoul(num, 16, &res))
123 brcmf_c_pktfilter_offload_enable(struct brcmf_if *ifp, char *arg, int enable,
128 char *arg_save = NULL, *arg_org = NULL;
130 struct brcmf_pkt_filter_enable_le enable_parm;
132 arg_save = kstrdup(arg, GFP_ATOMIC);
138 argv = strsep(&arg_save, " ");
141 brcmf_err("No args provided\n");
145 /* Parse packet filter id. */
147 if (!kstrtoul(argv, 0, &res))
148 enable_parm.id = cpu_to_le32((u32)res);
150 /* Enable/disable the specified filter. */
151 enable_parm.enable = cpu_to_le32(enable);
153 err = brcmf_fil_iovar_data_set(ifp, "pkt_filter_enable", &enable_parm,
154 sizeof(enable_parm));
156 brcmf_err("Set pkt_filter_enable error (%d)\n", err);
158 /* Control the master mode */
159 err = brcmf_fil_iovar_int_set(ifp, "pkt_filter_mode", master_mode);
161 brcmf_err("Set pkt_filter_mode error (%d)\n", err);
167 static void brcmf_c_pktfilter_offload_set(struct brcmf_if *ifp, char *arg)
169 struct brcmf_pkt_filter_le *pkt_filter;
175 char *argv[8], *buf = NULL;
177 char *arg_save = NULL, *arg_org = NULL;
179 arg_save = kstrdup(arg, GFP_ATOMIC);
185 buf = kmalloc(PKTFILTER_BUF_SIZE, GFP_ATOMIC);
189 argv[i] = strsep(&arg_save, " ");
193 brcmf_err("Too many parameters\n");
196 argv[i] = strsep(&arg_save, " ");
200 brcmf_err("Not enough args provided %d\n", i);
204 pkt_filter = (struct brcmf_pkt_filter_le *)buf;
206 /* Parse packet filter id. */
208 if (!kstrtoul(argv[0], 0, &res))
209 pkt_filter->id = cpu_to_le32((u32)res);
211 /* Parse filter polarity. */
212 pkt_filter->negate_match = 0;
213 if (!kstrtoul(argv[1], 0, &res))
214 pkt_filter->negate_match = cpu_to_le32((u32)res);
216 /* Parse filter type. */
217 pkt_filter->type = 0;
218 if (!kstrtoul(argv[2], 0, &res))
219 pkt_filter->type = cpu_to_le32((u32)res);
221 /* Parse pattern filter offset. */
222 pkt_filter->u.pattern.offset = 0;
223 if (!kstrtoul(argv[3], 0, &res))
224 pkt_filter->u.pattern.offset = cpu_to_le32((u32)res);
226 /* Parse pattern filter mask. */
227 mask_size = brcmf_c_pattern_atoh(argv[4],
228 (char *)pkt_filter->u.pattern.mask_and_pattern);
230 /* Parse pattern filter pattern. */
231 pattern_size = brcmf_c_pattern_atoh(argv[5],
232 (char *)&pkt_filter->u.pattern.mask_and_pattern[mask_size]);
234 if (mask_size != pattern_size) {
235 brcmf_err("Mask and pattern not the same size\n");
239 pkt_filter->u.pattern.size_bytes = cpu_to_le32(mask_size);
240 buf_len = offsetof(struct brcmf_pkt_filter_le,
241 u.pattern.mask_and_pattern);
242 buf_len += mask_size + pattern_size;
244 err = brcmf_fil_iovar_data_set(ifp, "pkt_filter_add", pkt_filter,
247 brcmf_err("Set pkt_filter_add error (%d)\n", err);
255 int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
257 s8 eventmask[BRCMF_EVENTING_MASK_LEN];
258 u8 buf[BRCMF_DCMD_SMLEN];
261 struct brcmf_bus_dcmd *cmdlst;
262 struct list_head *cur, *q;
264 /* retreive mac address */
265 err = brcmf_fil_iovar_data_get(ifp, "cur_etheraddr", ifp->mac_addr,
266 sizeof(ifp->mac_addr));
268 brcmf_err("Retreiving cur_etheraddr failed, %d\n",
272 memcpy(ifp->drvr->mac, ifp->mac_addr, sizeof(ifp->drvr->mac));
274 /* query for 'ver' to get version info from firmware */
275 memset(buf, 0, sizeof(buf));
277 err = brcmf_fil_iovar_data_get(ifp, "ver", buf, sizeof(buf));
279 brcmf_err("Retreiving version information failed, %d\n",
285 /* Print fw version info */
286 brcmf_err("Firmware version = %s\n", buf);
289 * Setup timeout if Beacons are lost and roam is off to report
292 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout",
293 BRCMF_DEFAULT_BCN_TIMEOUT);
295 brcmf_err("bcn_timeout error (%d)\n", err);
299 /* Enable/Disable build-in roaming to allowed ext supplicant to take
302 err = brcmf_fil_iovar_int_set(ifp, "roam_off", 1);
304 brcmf_err("roam_off error (%d)\n", err);
308 /* Setup event_msgs, enable E_IF */
309 err = brcmf_fil_iovar_data_get(ifp, "event_msgs", eventmask,
310 BRCMF_EVENTING_MASK_LEN);
312 brcmf_err("Get event_msgs error (%d)\n", err);
315 setbit(eventmask, BRCMF_E_IF);
316 err = brcmf_fil_iovar_data_set(ifp, "event_msgs", eventmask,
317 BRCMF_EVENTING_MASK_LEN);
319 brcmf_err("Set event_msgs error (%d)\n", err);
323 /* Setup default scan channel time */
324 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
325 BRCMF_DEFAULT_SCAN_CHANNEL_TIME);
327 brcmf_err("BRCMF_C_SET_SCAN_CHANNEL_TIME error (%d)\n",
332 /* Setup default scan unassoc time */
333 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
334 BRCMF_DEFAULT_SCAN_UNASSOC_TIME);
336 brcmf_err("BRCMF_C_SET_SCAN_UNASSOC_TIME error (%d)\n",
341 /* Try to set and enable ARP offload feature, this may fail */
342 err = brcmf_fil_iovar_int_set(ifp, "arp_ol", BRCMF_ARPOL_MODE);
344 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
345 BRCMF_ARPOL_MODE, err);
348 err = brcmf_fil_iovar_int_set(ifp, "arpoe", 1);
350 brcmf_dbg(TRACE, "failed to enable ARP offload err = %d\n",
354 brcmf_dbg(TRACE, "successfully enabled ARP offload to 0x%x\n",
358 /* Setup packet filter */
359 brcmf_c_pktfilter_offload_set(ifp, BRCMF_DEFAULT_PACKET_FILTER);
360 brcmf_c_pktfilter_offload_enable(ifp, BRCMF_DEFAULT_PACKET_FILTER,
363 /* set bus specific command if there is any */
364 list_for_each_safe(cur, q, &ifp->drvr->bus_if->dcmd_list) {
365 cmdlst = list_entry(cur, struct brcmf_bus_dcmd, list);
366 if (cmdlst->name && cmdlst->param && cmdlst->param_len) {
367 brcmf_fil_iovar_data_set(ifp, cmdlst->name,
378 #ifdef CONFIG_BRCM_TRACING
379 void __brcmf_err(const char *func, const char *fmt, ...)
381 struct va_format vaf = {
388 pr_err("%s: %pV", func, &vaf);
389 trace_brcmf_err(func, &vaf);
393 #if defined(CONFIG_BRCM_TRACING) || defined(CONFIG_BRCMDBG)
394 void __brcmf_dbg(u32 level, const char *func, const char *fmt, ...)
396 struct va_format vaf = {
403 if (brcmf_msg_level & level)
404 pr_debug("%s %pV", func, &vaf);
405 trace_brcmf_dbg(level, func, &vaf);