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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
19 #include <linux/kernel.h>
20 #include <linux/string.h>
21 #include <linux/netdevice.h>
22 #include <brcmu_wifi.h>
23 #include <brcmu_utils.h>
26 #include "dhd_proto.h"
30 #define PKTFILTER_BUF_SIZE 128
31 #define BRCMF_ARPOL_MODE 0xb /* agent|snoop|peer_autoreply */
32 #define BRCMF_DEFAULT_BCN_TIMEOUT 3
33 #define BRCMF_DEFAULT_SCAN_CHANNEL_TIME 40
34 #define BRCMF_DEFAULT_SCAN_UNASSOC_TIME 40
35 #define BRCMF_DEFAULT_PACKET_FILTER "100 0 0 0 0x01 0x00"
38 static const char brcmf_version
[] =
39 "Dongle Host Driver, version " BRCMF_VERSION_STR
"\nCompiled on "
40 __DATE__
" at " __TIME__
;
42 static const char brcmf_version
[] =
43 "Dongle Host Driver, version " BRCMF_VERSION_STR
;
47 bool brcmf_c_prec_enq(struct device
*dev
, struct pktq
*q
,
48 struct sk_buff
*pkt
, int prec
)
51 int eprec
= -1; /* precedence to evict from */
53 struct brcmf_bus
*bus_if
= dev_get_drvdata(dev
);
54 struct brcmf_pub
*drvr
= bus_if
->drvr
;
56 /* Fast case, precedence queue is not full and we are also not
57 * exceeding total queue length
59 if (!pktq_pfull(q
, prec
) && !pktq_full(q
)) {
60 brcmu_pktq_penq(q
, prec
, pkt
);
64 /* Determine precedence from which to evict packet, if any */
65 if (pktq_pfull(q
, prec
))
67 else if (pktq_full(q
)) {
68 p
= brcmu_pktq_peek_tail(q
, &eprec
);
75 /* Detect queueing to unconfigured precedence */
76 discard_oldest
= ac_bitmap_tst(drvr
->wme_dp
, eprec
);
77 if (eprec
== prec
&& !discard_oldest
)
78 return false; /* refuse newer (incoming) packet */
79 /* Evict packet according to discard policy */
80 p
= discard_oldest
? brcmu_pktq_pdeq(q
, eprec
) :
81 brcmu_pktq_pdeq_tail(q
, eprec
);
83 brcmf_err("brcmu_pktq_penq() failed, oldest %d\n",
86 brcmu_pkt_buf_free_skb(p
);
90 p
= brcmu_pktq_penq(q
, prec
, pkt
);
92 brcmf_err("brcmu_pktq_penq() failed\n");
97 /* Convert user's input in hex pattern to byte-size mask */
98 static int brcmf_c_pattern_atoh(char *src
, char *dst
)
101 if (strncmp(src
, "0x", 2) != 0 && strncmp(src
, "0X", 2) != 0) {
102 brcmf_err("Mask invalid format. Needs to start with 0x\n");
105 src
= src
+ 2; /* Skip past 0x */
106 if (strlen(src
) % 2 != 0) {
107 brcmf_err("Mask invalid format. Length must be even.\n");
110 for (i
= 0; *src
!= '\0'; i
++) {
113 strncpy(num
, src
, 2);
115 if (kstrtoul(num
, 16, &res
))
124 brcmf_c_pktfilter_offload_enable(struct brcmf_if
*ifp
, char *arg
, int enable
,
129 char *arg_save
= NULL
, *arg_org
= NULL
;
131 struct brcmf_pkt_filter_enable_le enable_parm
;
133 arg_save
= kstrdup(arg
, GFP_ATOMIC
);
139 argv
= strsep(&arg_save
, " ");
142 brcmf_err("No args provided\n");
146 /* Parse packet filter id. */
148 if (!kstrtoul(argv
, 0, &res
))
149 enable_parm
.id
= cpu_to_le32((u32
)res
);
151 /* Enable/disable the specified filter. */
152 enable_parm
.enable
= cpu_to_le32(enable
);
154 err
= brcmf_fil_iovar_data_set(ifp
, "pkt_filter_enable", &enable_parm
,
155 sizeof(enable_parm
));
157 brcmf_err("Set pkt_filter_enable error (%d)\n", err
);
159 /* Control the master mode */
160 err
= brcmf_fil_iovar_int_set(ifp
, "pkt_filter_mode", master_mode
);
162 brcmf_err("Set pkt_filter_mode error (%d)\n", err
);
168 static void brcmf_c_pktfilter_offload_set(struct brcmf_if
*ifp
, char *arg
)
170 struct brcmf_pkt_filter_le
*pkt_filter
;
176 char *argv
[8], *buf
= NULL
;
178 char *arg_save
= NULL
, *arg_org
= NULL
;
180 arg_save
= kstrdup(arg
, GFP_ATOMIC
);
186 buf
= kmalloc(PKTFILTER_BUF_SIZE
, GFP_ATOMIC
);
190 argv
[i
] = strsep(&arg_save
, " ");
194 brcmf_err("Too many parameters\n");
197 argv
[i
] = strsep(&arg_save
, " ");
201 brcmf_err("Not enough args provided %d\n", i
);
205 pkt_filter
= (struct brcmf_pkt_filter_le
*)buf
;
207 /* Parse packet filter id. */
209 if (!kstrtoul(argv
[0], 0, &res
))
210 pkt_filter
->id
= cpu_to_le32((u32
)res
);
212 /* Parse filter polarity. */
213 pkt_filter
->negate_match
= 0;
214 if (!kstrtoul(argv
[1], 0, &res
))
215 pkt_filter
->negate_match
= cpu_to_le32((u32
)res
);
217 /* Parse filter type. */
218 pkt_filter
->type
= 0;
219 if (!kstrtoul(argv
[2], 0, &res
))
220 pkt_filter
->type
= cpu_to_le32((u32
)res
);
222 /* Parse pattern filter offset. */
223 pkt_filter
->u
.pattern
.offset
= 0;
224 if (!kstrtoul(argv
[3], 0, &res
))
225 pkt_filter
->u
.pattern
.offset
= cpu_to_le32((u32
)res
);
227 /* Parse pattern filter mask. */
228 mask_size
= brcmf_c_pattern_atoh(argv
[4],
229 (char *)pkt_filter
->u
.pattern
.mask_and_pattern
);
231 /* Parse pattern filter pattern. */
232 pattern_size
= brcmf_c_pattern_atoh(argv
[5],
233 (char *)&pkt_filter
->u
.pattern
.mask_and_pattern
[mask_size
]);
235 if (mask_size
!= pattern_size
) {
236 brcmf_err("Mask and pattern not the same size\n");
240 pkt_filter
->u
.pattern
.size_bytes
= cpu_to_le32(mask_size
);
241 buf_len
= offsetof(struct brcmf_pkt_filter_le
,
242 u
.pattern
.mask_and_pattern
);
243 buf_len
+= mask_size
+ pattern_size
;
245 err
= brcmf_fil_iovar_data_set(ifp
, "pkt_filter_add", pkt_filter
,
248 brcmf_err("Set pkt_filter_add error (%d)\n", err
);
256 int brcmf_c_preinit_dcmds(struct brcmf_if
*ifp
)
258 s8 eventmask
[BRCMF_EVENTING_MASK_LEN
];
259 u8 buf
[BRCMF_DCMD_SMLEN
];
262 struct brcmf_bus_dcmd
*cmdlst
;
263 struct list_head
*cur
, *q
;
265 /* retreive mac address */
266 err
= brcmf_fil_iovar_data_get(ifp
, "cur_etheraddr", ifp
->mac_addr
,
267 sizeof(ifp
->mac_addr
));
269 brcmf_err("Retreiving cur_etheraddr failed, %d\n",
273 memcpy(ifp
->drvr
->mac
, ifp
->mac_addr
, sizeof(ifp
->drvr
->mac
));
275 /* query for 'ver' to get version info from firmware */
276 memset(buf
, 0, sizeof(buf
));
278 err
= brcmf_fil_iovar_data_get(ifp
, "ver", buf
, sizeof(buf
));
280 brcmf_err("Retreiving version information failed, %d\n",
286 /* Print fw version info */
287 brcmf_err("Firmware version = %s\n", buf
);
290 * Setup timeout if Beacons are lost and roam is off to report
293 err
= brcmf_fil_iovar_int_set(ifp
, "bcn_timeout",
294 BRCMF_DEFAULT_BCN_TIMEOUT
);
296 brcmf_err("bcn_timeout error (%d)\n", err
);
300 /* Enable/Disable build-in roaming to allowed ext supplicant to take
303 err
= brcmf_fil_iovar_int_set(ifp
, "roam_off", 1);
305 brcmf_err("roam_off error (%d)\n", err
);
309 /* Setup event_msgs, enable E_IF */
310 err
= brcmf_fil_iovar_data_get(ifp
, "event_msgs", eventmask
,
311 BRCMF_EVENTING_MASK_LEN
);
313 brcmf_err("Get event_msgs error (%d)\n", err
);
316 setbit(eventmask
, BRCMF_E_IF
);
317 err
= brcmf_fil_iovar_data_set(ifp
, "event_msgs", eventmask
,
318 BRCMF_EVENTING_MASK_LEN
);
320 brcmf_err("Set event_msgs error (%d)\n", err
);
324 /* Setup default scan channel time */
325 err
= brcmf_fil_cmd_int_set(ifp
, BRCMF_C_SET_SCAN_CHANNEL_TIME
,
326 BRCMF_DEFAULT_SCAN_CHANNEL_TIME
);
328 brcmf_err("BRCMF_C_SET_SCAN_CHANNEL_TIME error (%d)\n",
333 /* Setup default scan unassoc time */
334 err
= brcmf_fil_cmd_int_set(ifp
, BRCMF_C_SET_SCAN_UNASSOC_TIME
,
335 BRCMF_DEFAULT_SCAN_UNASSOC_TIME
);
337 brcmf_err("BRCMF_C_SET_SCAN_UNASSOC_TIME error (%d)\n",
342 /* Try to set and enable ARP offload feature, this may fail */
343 err
= brcmf_fil_iovar_int_set(ifp
, "arp_ol", BRCMF_ARPOL_MODE
);
345 brcmf_dbg(TRACE
, "failed to set ARP offload mode to 0x%x, err = %d\n",
346 BRCMF_ARPOL_MODE
, err
);
349 err
= brcmf_fil_iovar_int_set(ifp
, "arpoe", 1);
351 brcmf_dbg(TRACE
, "failed to enable ARP offload err = %d\n",
355 brcmf_dbg(TRACE
, "successfully enabled ARP offload to 0x%x\n",
359 /* Setup packet filter */
360 brcmf_c_pktfilter_offload_set(ifp
, BRCMF_DEFAULT_PACKET_FILTER
);
361 brcmf_c_pktfilter_offload_enable(ifp
, BRCMF_DEFAULT_PACKET_FILTER
,
364 /* set bus specific command if there is any */
365 list_for_each_safe(cur
, q
, &ifp
->drvr
->bus_if
->dcmd_list
) {
366 cmdlst
= list_entry(cur
, struct brcmf_bus_dcmd
, list
);
367 if (cmdlst
->name
&& cmdlst
->param
&& cmdlst
->param_len
) {
368 brcmf_fil_iovar_data_set(ifp
, cmdlst
->name
,