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linux/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c

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/*
* Copyright (c) 2010 Broadcom Corporation
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/sched.h>
#include <linux/netdevice.h>
#include <asm/unaligned.h>
#include <defs.h>
#include <brcmu_wifi.h>
#include <brcmu_utils.h>
#include "dhd.h"
#include "dhd_bus.h"
#include "dhd_proto.h"
#include "dhd_dbg.h"
#define BRCM_OUI "\x00\x10\x18"
#define DOT11_OUI_LEN 3
#define BCMILCP_BCM_SUBTYPE_EVENT 1
#define PKTFILTER_BUF_SIZE 2048
#define BRCMF_ARPOL_MODE 0xb /* agent|snoop|peer_autoreply */
#define MSGTRACE_VERSION 1
#define BRCMF_PKT_FILTER_FIXED_LEN offsetof(struct brcmf_pkt_filter_le, u)
#define BRCMF_PKT_FILTER_PATTERN_FIXED_LEN \
offsetof(struct brcmf_pkt_filter_pattern_le, mask_and_pattern)
#ifdef BCMDBG
static const char brcmf_version[] =
"Dongle Host Driver, version " BRCMF_VERSION_STR "\nCompiled on "
__DATE__ " at " __TIME__;
#else
static const char brcmf_version[] =
"Dongle Host Driver, version " BRCMF_VERSION_STR;
#endif
/* Message trace header */
struct msgtrace_hdr {
u8 version;
u8 spare;
__be16 len; /* Len of the trace */
__be32 seqnum; /* Sequence number of message. Useful
* if the messsage has been lost
* because of DMA error or a bus reset
* (ex: SDIO Func2)
*/
__be32 discarded_bytes; /* Number of discarded bytes because of
trace overflow */
__be32 discarded_printf; /* Number of discarded printf
because of trace overflow */
} __packed;
uint
brcmf_c_mkiovar(char *name, char *data, uint datalen, char *buf, uint buflen)
{
uint len;
len = strlen(name) + 1;
if ((len + datalen) > buflen)
return 0;
strncpy(buf, name, buflen);
/* append data onto the end of the name string */
memcpy(&buf[len], data, datalen);
len += datalen;
return len;
}
bool brcmf_c_prec_enq(struct brcmf_pub *drvr, struct pktq *q,
struct sk_buff *pkt, int prec)
{
struct sk_buff *p;
int eprec = -1; /* precedence to evict from */
bool discard_oldest;
/* Fast case, precedence queue is not full and we are also not
* exceeding total queue length
*/
if (!pktq_pfull(q, prec) && !pktq_full(q)) {
brcmu_pktq_penq(q, prec, pkt);
return true;
}
/* Determine precedence from which to evict packet, if any */
if (pktq_pfull(q, prec))
eprec = prec;
else if (pktq_full(q)) {
p = brcmu_pktq_peek_tail(q, &eprec);
if (eprec > prec)
return false;
}
/* Evict if needed */
if (eprec >= 0) {
/* Detect queueing to unconfigured precedence */
discard_oldest = ac_bitmap_tst(drvr->wme_dp, eprec);
if (eprec == prec && !discard_oldest)
return false; /* refuse newer (incoming) packet */
/* Evict packet according to discard policy */
p = discard_oldest ? brcmu_pktq_pdeq(q, eprec) :
brcmu_pktq_pdeq_tail(q, eprec);
if (p == NULL)
brcmf_dbg(ERROR, "brcmu_pktq_penq() failed, oldest %d\n",
discard_oldest);
brcmu_pkt_buf_free_skb(p);
}
/* Enqueue */
p = brcmu_pktq_penq(q, prec, pkt);
if (p == NULL)
brcmf_dbg(ERROR, "brcmu_pktq_penq() failed\n");
return p != NULL;
}
#ifdef BCMDBG
static void
brcmf_c_show_host_event(struct brcmf_event_msg *event, void *event_data)
{
uint i, status, reason;
bool group = false, flush_txq = false, link = false;
char *auth_str, *event_name;
unsigned char *buf;
char err_msg[256], eabuf[ETHER_ADDR_STR_LEN];
static struct {
uint event;
char *event_name;
} event_names[] = {
{
BRCMF_E_SET_SSID, "SET_SSID"}, {
BRCMF_E_JOIN, "JOIN"}, {
BRCMF_E_START, "START"}, {
BRCMF_E_AUTH, "AUTH"}, {
BRCMF_E_AUTH_IND, "AUTH_IND"}, {
BRCMF_E_DEAUTH, "DEAUTH"}, {
BRCMF_E_DEAUTH_IND, "DEAUTH_IND"}, {
BRCMF_E_ASSOC, "ASSOC"}, {
BRCMF_E_ASSOC_IND, "ASSOC_IND"}, {
BRCMF_E_REASSOC, "REASSOC"}, {
BRCMF_E_REASSOC_IND, "REASSOC_IND"}, {
BRCMF_E_DISASSOC, "DISASSOC"}, {
BRCMF_E_DISASSOC_IND, "DISASSOC_IND"}, {
BRCMF_E_QUIET_START, "START_QUIET"}, {
BRCMF_E_QUIET_END, "END_QUIET"}, {
BRCMF_E_BEACON_RX, "BEACON_RX"}, {
BRCMF_E_LINK, "LINK"}, {
BRCMF_E_MIC_ERROR, "MIC_ERROR"}, {
BRCMF_E_NDIS_LINK, "NDIS_LINK"}, {
BRCMF_E_ROAM, "ROAM"}, {
BRCMF_E_TXFAIL, "TXFAIL"}, {
BRCMF_E_PMKID_CACHE, "PMKID_CACHE"}, {
BRCMF_E_RETROGRADE_TSF, "RETROGRADE_TSF"}, {
BRCMF_E_PRUNE, "PRUNE"}, {
BRCMF_E_AUTOAUTH, "AUTOAUTH"}, {
BRCMF_E_EAPOL_MSG, "EAPOL_MSG"}, {
BRCMF_E_SCAN_COMPLETE, "SCAN_COMPLETE"}, {
BRCMF_E_ADDTS_IND, "ADDTS_IND"}, {
BRCMF_E_DELTS_IND, "DELTS_IND"}, {
BRCMF_E_BCNSENT_IND, "BCNSENT_IND"}, {
BRCMF_E_BCNRX_MSG, "BCNRX_MSG"}, {
BRCMF_E_BCNLOST_MSG, "BCNLOST_MSG"}, {
BRCMF_E_ROAM_PREP, "ROAM_PREP"}, {
BRCMF_E_PFN_NET_FOUND, "PNO_NET_FOUND"}, {
BRCMF_E_PFN_NET_LOST, "PNO_NET_LOST"}, {
BRCMF_E_RESET_COMPLETE, "RESET_COMPLETE"}, {
BRCMF_E_JOIN_START, "JOIN_START"}, {
BRCMF_E_ROAM_START, "ROAM_START"}, {
BRCMF_E_ASSOC_START, "ASSOC_START"}, {
BRCMF_E_IBSS_ASSOC, "IBSS_ASSOC"}, {
BRCMF_E_RADIO, "RADIO"}, {
BRCMF_E_PSM_WATCHDOG, "PSM_WATCHDOG"}, {
BRCMF_E_PROBREQ_MSG, "PROBREQ_MSG"}, {
BRCMF_E_SCAN_CONFIRM_IND, "SCAN_CONFIRM_IND"}, {
BRCMF_E_PSK_SUP, "PSK_SUP"}, {
BRCMF_E_COUNTRY_CODE_CHANGED, "COUNTRY_CODE_CHANGED"}, {
BRCMF_E_EXCEEDED_MEDIUM_TIME, "EXCEEDED_MEDIUM_TIME"}, {
BRCMF_E_ICV_ERROR, "ICV_ERROR"}, {
BRCMF_E_UNICAST_DECODE_ERROR, "UNICAST_DECODE_ERROR"}, {
BRCMF_E_MULTICAST_DECODE_ERROR, "MULTICAST_DECODE_ERROR"}, {
BRCMF_E_TRACE, "TRACE"}, {
BRCMF_E_ACTION_FRAME, "ACTION FRAME"}, {
BRCMF_E_ACTION_FRAME_COMPLETE, "ACTION FRAME TX COMPLETE"}, {
BRCMF_E_IF, "IF"}, {
BRCMF_E_RSSI, "RSSI"}, {
BRCMF_E_PFN_SCAN_COMPLETE, "SCAN_COMPLETE"}
};
uint event_type, flags, auth_type, datalen;
static u32 seqnum_prev;
struct msgtrace_hdr hdr;
u32 nblost;
char *s, *p;
event_type = be32_to_cpu(event->event_type);
flags = be16_to_cpu(event->flags);
status = be32_to_cpu(event->status);
reason = be32_to_cpu(event->reason);
auth_type = be32_to_cpu(event->auth_type);
datalen = be32_to_cpu(event->datalen);
/* debug dump of event messages */
sprintf(eabuf, "%pM", event->addr);
event_name = "UNKNOWN";
for (i = 0; i < ARRAY_SIZE(event_names); i++) {
if (event_names[i].event == event_type)
event_name = event_names[i].event_name;
}
brcmf_dbg(EVENT, "EVENT: %s, event ID = %d\n", event_name, event_type);
brcmf_dbg(EVENT, "flags 0x%04x, status %d, reason %d, auth_type %d MAC %s\n",
flags, status, reason, auth_type, eabuf);
if (flags & BRCMF_EVENT_MSG_LINK)
link = true;
if (flags & BRCMF_EVENT_MSG_GROUP)
group = true;
if (flags & BRCMF_EVENT_MSG_FLUSHTXQ)
flush_txq = true;
switch (event_type) {
case BRCMF_E_START:
case BRCMF_E_DEAUTH:
case BRCMF_E_DISASSOC:
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s\n", event_name, eabuf);
break;
case BRCMF_E_ASSOC_IND:
case BRCMF_E_REASSOC_IND:
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s\n", event_name, eabuf);
break;
case BRCMF_E_ASSOC:
case BRCMF_E_REASSOC:
if (status == BRCMF_E_STATUS_SUCCESS)
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, SUCCESS\n",
event_name, eabuf);
else if (status == BRCMF_E_STATUS_TIMEOUT)
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, TIMEOUT\n",
event_name, eabuf);
else if (status == BRCMF_E_STATUS_FAIL)
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, FAILURE, reason %d\n",
event_name, eabuf, (int)reason);
else
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, unexpected status %d\n",
event_name, eabuf, (int)status);
break;
case BRCMF_E_DEAUTH_IND:
case BRCMF_E_DISASSOC_IND:
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, reason %d\n",
event_name, eabuf, (int)reason);
break;
case BRCMF_E_AUTH:
case BRCMF_E_AUTH_IND:
if (auth_type == WLAN_AUTH_OPEN)
auth_str = "Open System";
else if (auth_type == WLAN_AUTH_SHARED_KEY)
auth_str = "Shared Key";
else {
sprintf(err_msg, "AUTH unknown: %d", (int)auth_type);
auth_str = err_msg;
}
if (event_type == BRCMF_E_AUTH_IND)
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, %s\n",
event_name, eabuf, auth_str);
else if (status == BRCMF_E_STATUS_SUCCESS)
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, %s, SUCCESS\n",
event_name, eabuf, auth_str);
else if (status == BRCMF_E_STATUS_TIMEOUT)
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, %s, TIMEOUT\n",
event_name, eabuf, auth_str);
else if (status == BRCMF_E_STATUS_FAIL) {
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, %s, FAILURE, reason %d\n",
event_name, eabuf, auth_str, (int)reason);
}
break;
case BRCMF_E_JOIN:
case BRCMF_E_ROAM:
case BRCMF_E_SET_SSID:
if (status == BRCMF_E_STATUS_SUCCESS)
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s\n",
event_name, eabuf);
else if (status == BRCMF_E_STATUS_FAIL)
brcmf_dbg(EVENT, "MACEVENT: %s, failed\n", event_name);
else if (status == BRCMF_E_STATUS_NO_NETWORKS)
brcmf_dbg(EVENT, "MACEVENT: %s, no networks found\n",
event_name);
else
brcmf_dbg(EVENT, "MACEVENT: %s, unexpected status %d\n",
event_name, (int)status);
break;
case BRCMF_E_BEACON_RX:
if (status == BRCMF_E_STATUS_SUCCESS)
brcmf_dbg(EVENT, "MACEVENT: %s, SUCCESS\n", event_name);
else if (status == BRCMF_E_STATUS_FAIL)
brcmf_dbg(EVENT, "MACEVENT: %s, FAIL\n", event_name);
else
brcmf_dbg(EVENT, "MACEVENT: %s, status %d\n",
event_name, status);
break;
case BRCMF_E_LINK:
brcmf_dbg(EVENT, "MACEVENT: %s %s\n",
event_name, link ? "UP" : "DOWN");
break;
case BRCMF_E_MIC_ERROR:
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s, Group %d, Flush %d\n",
event_name, eabuf, group, flush_txq);
break;
case BRCMF_E_ICV_ERROR:
case BRCMF_E_UNICAST_DECODE_ERROR:
case BRCMF_E_MULTICAST_DECODE_ERROR:
brcmf_dbg(EVENT, "MACEVENT: %s, MAC %s\n", event_name, eabuf);
break;
case BRCMF_E_TXFAIL:
brcmf_dbg(EVENT, "MACEVENT: %s, RA %s\n", event_name, eabuf);
break;
case BRCMF_E_SCAN_COMPLETE:
case BRCMF_E_PMKID_CACHE:
brcmf_dbg(EVENT, "MACEVENT: %s\n", event_name);
break;
case BRCMF_E_PFN_NET_FOUND:
case BRCMF_E_PFN_NET_LOST:
case BRCMF_E_PFN_SCAN_COMPLETE:
brcmf_dbg(EVENT, "PNOEVENT: %s\n", event_name);
break;
case BRCMF_E_PSK_SUP:
case BRCMF_E_PRUNE:
brcmf_dbg(EVENT, "MACEVENT: %s, status %d, reason %d\n",
event_name, (int)status, (int)reason);
break;
case BRCMF_E_TRACE:
buf = (unsigned char *) event_data;
memcpy(&hdr, buf, sizeof(struct msgtrace_hdr));
if (hdr.version != MSGTRACE_VERSION) {
brcmf_dbg(ERROR,
"MACEVENT: %s [unsupported version --> brcmf"
" version:%d dongle version:%d]\n",
event_name, MSGTRACE_VERSION, hdr.version);
/* Reset datalen to avoid display below */
datalen = 0;
break;
}
/* There are 2 bytes available at the end of data */
*(buf + sizeof(struct msgtrace_hdr)
+ be16_to_cpu(hdr.len)) = '\0';
if (be32_to_cpu(hdr.discarded_bytes)
|| be32_to_cpu(hdr.discarded_printf))
brcmf_dbg(ERROR,
"WLC_E_TRACE: [Discarded traces in dongle -->"
" discarded_bytes %d discarded_printf %d]\n",
be32_to_cpu(hdr.discarded_bytes),
be32_to_cpu(hdr.discarded_printf));
nblost = be32_to_cpu(hdr.seqnum) - seqnum_prev - 1;
if (nblost > 0)
brcmf_dbg(ERROR, "WLC_E_TRACE: [Event lost --> seqnum "
" %d nblost %d\n", be32_to_cpu(hdr.seqnum),
nblost);
seqnum_prev = be32_to_cpu(hdr.seqnum);
/* Display the trace buffer. Advance from \n to \n to
* avoid display big
* printf (issue with Linux printk )
*/
p = (char *)&buf[sizeof(struct msgtrace_hdr)];
while ((s = strstr(p, "\n")) != NULL) {
*s = '\0';
printk(KERN_DEBUG"%s\n", p);
p = s + 1;
}
printk(KERN_DEBUG "%s\n", p);
/* Reset datalen to avoid display below */
datalen = 0;
break;
case BRCMF_E_RSSI:
brcmf_dbg(EVENT, "MACEVENT: %s %d\n",
event_name, be32_to_cpu(*((__be32 *)event_data)));
break;
default:
brcmf_dbg(EVENT,
"MACEVENT: %s %d, MAC %s, status %d, reason %d, "
"auth %d\n", event_name, event_type, eabuf,
(int)status, (int)reason, (int)auth_type);
break;
}
/* show any appended data */
if (datalen) {
buf = (unsigned char *) event_data;
brcmf_dbg(EVENT, " data (%d) : ", datalen);
for (i = 0; i < datalen; i++)
brcmf_dbg(EVENT, " 0x%02x ", *buf++);
brcmf_dbg(EVENT, "\n");
}
}
#endif /* BCMDBG */
int
brcmf_c_host_event(struct brcmf_info *drvr_priv, int *ifidx, void *pktdata,
struct brcmf_event_msg *event, void **data_ptr)
{
/* check whether packet is a BRCM event pkt */
struct brcmf_event *pvt_data = (struct brcmf_event *) pktdata;
struct brcmf_if_event *ifevent;
char *event_data;
u32 type, status;
u16 flags;
int evlen;
if (memcmp(BRCM_OUI, &pvt_data->hdr.oui[0], DOT11_OUI_LEN)) {
brcmf_dbg(ERROR, "mismatched OUI, bailing\n");
return -EBADE;
}
/* BRCM event pkt may be unaligned - use xxx_ua to load user_subtype. */
if (get_unaligned_be16(&pvt_data->hdr.usr_subtype) !=
BCMILCP_BCM_SUBTYPE_EVENT) {
brcmf_dbg(ERROR, "mismatched subtype, bailing\n");
return -EBADE;
}
*data_ptr = &pvt_data[1];
event_data = *data_ptr;
/* memcpy since BRCM event pkt may be unaligned. */
memcpy(event, &pvt_data->msg, sizeof(struct brcmf_event_msg));
type = get_unaligned_be32(&event->event_type);
flags = get_unaligned_be16(&event->flags);
status = get_unaligned_be32(&event->status);
evlen = get_unaligned_be32(&event->datalen) +
sizeof(struct brcmf_event);
switch (type) {
case BRCMF_E_IF:
ifevent = (struct brcmf_if_event *) event_data;
brcmf_dbg(TRACE, "if event\n");
if (ifevent->ifidx > 0 && ifevent->ifidx < BRCMF_MAX_IFS) {
if (ifevent->action == BRCMF_E_IF_ADD)
brcmf_add_if(drvr_priv, ifevent->ifidx,
event->ifname,
pvt_data->eth.h_dest);
else
brcmf_del_if(drvr_priv, ifevent->ifidx);
} else {
brcmf_dbg(ERROR, "Invalid ifidx %d for %s\n",
ifevent->ifidx, event->ifname);
}
/* send up the if event: btamp user needs it */
*ifidx = brcmf_ifname2idx(drvr_priv, event->ifname);
break;
/* These are what external supplicant/authenticator wants */
case BRCMF_E_LINK:
case BRCMF_E_ASSOC_IND:
case BRCMF_E_REASSOC_IND:
case BRCMF_E_DISASSOC_IND:
case BRCMF_E_MIC_ERROR:
default:
/* Fall through: this should get _everything_ */
*ifidx = brcmf_ifname2idx(drvr_priv, event->ifname);
brcmf_dbg(TRACE, "MAC event %d, flags %x, status %x\n",
type, flags, status);
/* put it back to BRCMF_E_NDIS_LINK */
if (type == BRCMF_E_NDIS_LINK) {
u32 temp1;
__be32 temp2;
temp1 = get_unaligned_be32(&event->event_type);
brcmf_dbg(TRACE, "Converted to WLC_E_LINK type %d\n",
temp1);
temp2 = cpu_to_be32(BRCMF_E_NDIS_LINK);
memcpy((void *)(&pvt_data->msg.event_type), &temp2,
sizeof(pvt_data->msg.event_type));
}
break;
}
#ifdef BCMDBG
brcmf_c_show_host_event(event, event_data);
#endif /* BCMDBG */
return 0;
}
/* Convert user's input in hex pattern to byte-size mask */
static int brcmf_c_pattern_atoh(char *src, char *dst)
{
int i;
if (strncmp(src, "0x", 2) != 0 && strncmp(src, "0X", 2) != 0) {
brcmf_dbg(ERROR, "Mask invalid format. Needs to start with 0x\n");
return -EINVAL;
}
src = src + 2; /* Skip past 0x */
if (strlen(src) % 2 != 0) {
brcmf_dbg(ERROR, "Mask invalid format. Length must be even.\n");
return -EINVAL;
}
for (i = 0; *src != '\0'; i++) {
unsigned long res;
char num[3];
strncpy(num, src, 2);
num[2] = '\0';
if (kstrtoul(num, 16, &res))
return -EINVAL;
dst[i] = (u8)res;
src += 2;
}
return i;
}
void
brcmf_c_pktfilter_offload_enable(struct brcmf_pub *drvr, char *arg, int enable,
int master_mode)
{
unsigned long res;
char *argv[8];
int i = 0;
const char *str;
int buf_len;
int str_len;
char *arg_save = NULL, *arg_org = NULL;
int rc;
char buf[128];
struct brcmf_pkt_filter_enable_le enable_parm;
struct brcmf_pkt_filter_enable_le *pkt_filterp;
__le32 mmode_le;
arg_save = kmalloc(strlen(arg) + 1, GFP_ATOMIC);
if (!arg_save)
goto fail;
arg_org = arg_save;
memcpy(arg_save, arg, strlen(arg) + 1);
argv[i] = strsep(&arg_save, " ");
i = 0;
if (NULL == argv[i]) {
brcmf_dbg(ERROR, "No args provided\n");
goto fail;
}
str = "pkt_filter_enable";
str_len = strlen(str);
strncpy(buf, str, str_len);
buf[str_len] = '\0';
buf_len = str_len + 1;
pkt_filterp = (struct brcmf_pkt_filter_enable_le *) (buf + str_len + 1);
/* Parse packet filter id. */
enable_parm.id = 0;
if (!kstrtoul(argv[i], 0, &res))
enable_parm.id = cpu_to_le32((u32)res);
/* Parse enable/disable value. */
enable_parm.enable = cpu_to_le32(enable);
buf_len += sizeof(enable_parm);
memcpy((char *)pkt_filterp, &enable_parm, sizeof(enable_parm));
/* Enable/disable the specified filter. */
rc = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, buf, buf_len);
rc = rc >= 0 ? 0 : rc;
if (rc)
brcmf_dbg(TRACE, "failed to add pktfilter %s, retcode = %d\n",
arg, rc);
else
brcmf_dbg(TRACE, "successfully added pktfilter %s\n", arg);
/* Contorl the master mode */
mmode_le = cpu_to_le32(master_mode);
brcmf_c_mkiovar("pkt_filter_mode", (char *)&mmode_le, 4, buf,
sizeof(buf));
rc = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, buf,
sizeof(buf));
rc = rc >= 0 ? 0 : rc;
if (rc)
brcmf_dbg(TRACE, "failed to add pktfilter %s, retcode = %d\n",
arg, rc);
fail:
kfree(arg_org);
}
void brcmf_c_pktfilter_offload_set(struct brcmf_pub *drvr, char *arg)
{
const char *str;
struct brcmf_pkt_filter_le pkt_filter;
struct brcmf_pkt_filter_le *pkt_filterp;
unsigned long res;
int buf_len;
int str_len;
int rc;
u32 mask_size;
u32 pattern_size;
char *argv[8], *buf = NULL;
int i = 0;
char *arg_save = NULL, *arg_org = NULL;
arg_save = kstrdup(arg, GFP_ATOMIC);
if (!arg_save)
goto fail;
arg_org = arg_save;
buf = kmalloc(PKTFILTER_BUF_SIZE, GFP_ATOMIC);
if (!buf)
goto fail;
argv[i] = strsep(&arg_save, " ");
while (argv[i++])
argv[i] = strsep(&arg_save, " ");
i = 0;
if (NULL == argv[i]) {
brcmf_dbg(ERROR, "No args provided\n");
goto fail;
}
str = "pkt_filter_add";
strcpy(buf, str);
str_len = strlen(str);
buf_len = str_len + 1;
pkt_filterp = (struct brcmf_pkt_filter_le *) (buf + str_len + 1);
/* Parse packet filter id. */
pkt_filter.id = 0;
if (!kstrtoul(argv[i], 0, &res))
pkt_filter.id = cpu_to_le32((u32)res);
if (NULL == argv[++i]) {
brcmf_dbg(ERROR, "Polarity not provided\n");
goto fail;
}
/* Parse filter polarity. */
pkt_filter.negate_match = 0;
if (!kstrtoul(argv[i], 0, &res))
pkt_filter.negate_match = cpu_to_le32((u32)res);
if (NULL == argv[++i]) {
brcmf_dbg(ERROR, "Filter type not provided\n");
goto fail;
}
/* Parse filter type. */
pkt_filter.type = 0;
if (!kstrtoul(argv[i], 0, &res))
pkt_filter.type = cpu_to_le32((u32)res);
if (NULL == argv[++i]) {
brcmf_dbg(ERROR, "Offset not provided\n");
goto fail;
}
/* Parse pattern filter offset. */
pkt_filter.u.pattern.offset = 0;
if (!kstrtoul(argv[i], 0, &res))
pkt_filter.u.pattern.offset = cpu_to_le32((u32)res);
if (NULL == argv[++i]) {
brcmf_dbg(ERROR, "Bitmask not provided\n");
goto fail;
}
/* Parse pattern filter mask. */
mask_size =
brcmf_c_pattern_atoh
(argv[i], (char *)pkt_filterp->u.pattern.mask_and_pattern);
if (NULL == argv[++i]) {
brcmf_dbg(ERROR, "Pattern not provided\n");
goto fail;
}
/* Parse pattern filter pattern. */
pattern_size =
brcmf_c_pattern_atoh(argv[i],
(char *)&pkt_filterp->u.pattern.
mask_and_pattern[mask_size]);
if (mask_size != pattern_size) {
brcmf_dbg(ERROR, "Mask and pattern not the same size\n");
goto fail;
}
pkt_filter.u.pattern.size_bytes = cpu_to_le32(mask_size);
buf_len += BRCMF_PKT_FILTER_FIXED_LEN;
buf_len += (BRCMF_PKT_FILTER_PATTERN_FIXED_LEN + 2 * mask_size);
/* Keep-alive attributes are set in local
* variable (keep_alive_pkt), and
** then memcpy'ed into buffer (keep_alive_pktp) since there is no
** guarantee that the buffer is properly aligned.
*/
memcpy((char *)pkt_filterp,
&pkt_filter,
BRCMF_PKT_FILTER_FIXED_LEN + BRCMF_PKT_FILTER_PATTERN_FIXED_LEN);
rc = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, buf, buf_len);
rc = rc >= 0 ? 0 : rc;
if (rc)
brcmf_dbg(TRACE, "failed to add pktfilter %s, retcode = %d\n",
arg, rc);
else
brcmf_dbg(TRACE, "successfully added pktfilter %s\n", arg);
fail:
kfree(arg_org);
kfree(buf);
}
static void brcmf_c_arp_offload_set(struct brcmf_pub *drvr, int arp_mode)
{
char iovbuf[32];
int retcode;
brcmf_c_mkiovar("arp_ol", (char *)&arp_mode, 4, iovbuf, sizeof(iovbuf));
retcode = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR,
iovbuf, sizeof(iovbuf));
retcode = retcode >= 0 ? 0 : retcode;
if (retcode)
brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, retcode = %d\n",
arp_mode, retcode);
else
brcmf_dbg(TRACE, "successfully set ARP offload mode to 0x%x\n",
arp_mode);
}
static void brcmf_c_arp_offload_enable(struct brcmf_pub *drvr, int arp_enable)
{
char iovbuf[32];
int retcode;
brcmf_c_mkiovar("arpoe", (char *)&arp_enable, 4,
iovbuf, sizeof(iovbuf));
retcode = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR,
iovbuf, sizeof(iovbuf));
retcode = retcode >= 0 ? 0 : retcode;
if (retcode)
brcmf_dbg(TRACE, "failed to enable ARP offload to %d, retcode = %d\n",
arp_enable, retcode);
else
brcmf_dbg(TRACE, "successfully enabled ARP offload to %d\n",
arp_enable);
}
int brcmf_c_preinit_dcmds(struct brcmf_pub *drvr)
{
char iovbuf[BRCMF_EVENTING_MASK_LEN + 12]; /* Room for
"event_msgs" + '\0' + bitvec */
uint up = 0;
char buf[128], *ptr;
u32 dongle_align = BRCMF_SDALIGN;
u32 glom = 0;
u32 roaming = 1;
uint bcn_timeout = 3;
int scan_assoc_time = 40;
int scan_unassoc_time = 40;
int i;
brcmf_os_proto_block(drvr);
/* Set Country code */
if (drvr->country_code[0] != 0) {
if (brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_COUNTRY,
drvr->country_code,
sizeof(drvr->country_code)) < 0)
brcmf_dbg(ERROR, "country code setting failed\n");
}
/* query for 'ver' to get version info from firmware */
memset(buf, 0, sizeof(buf));
ptr = buf;
brcmf_c_mkiovar("ver", NULL, 0, buf, sizeof(buf));
brcmf_proto_cdc_query_dcmd(drvr, 0, BRCMF_C_GET_VAR, buf, sizeof(buf));
strsep(&ptr, "\n");
/* Print fw version info */
brcmf_dbg(ERROR, "Firmware version = %s\n", buf);
/* Match Host and Dongle rx alignment */
brcmf_c_mkiovar("bus:txglomalign", (char *)&dongle_align, 4, iovbuf,
sizeof(iovbuf));
brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
sizeof(iovbuf));
/* disable glom option per default */
brcmf_c_mkiovar("bus:txglom", (char *)&glom, 4, iovbuf, sizeof(iovbuf));
brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
sizeof(iovbuf));
/* Setup timeout if Beacons are lost and roam is off to report
link down */
brcmf_c_mkiovar("bcn_timeout", (char *)&bcn_timeout, 4, iovbuf,
sizeof(iovbuf));
brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
sizeof(iovbuf));
/* Enable/Disable build-in roaming to allowed ext supplicant to take
of romaing */
brcmf_c_mkiovar("roam_off", (char *)&roaming, 4,
iovbuf, sizeof(iovbuf));
brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
sizeof(iovbuf));
/* Force STA UP */
brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_UP, (char *)&up, sizeof(up));
/* Setup event_msgs */
brcmf_c_mkiovar("event_msgs", drvr->eventmask, BRCMF_EVENTING_MASK_LEN,
iovbuf, sizeof(iovbuf));
brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
sizeof(iovbuf));
brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_SCAN_CHANNEL_TIME,
(char *)&scan_assoc_time, sizeof(scan_assoc_time));
brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_SCAN_UNASSOC_TIME,
(char *)&scan_unassoc_time, sizeof(scan_unassoc_time));
/* Set and enable ARP offload feature */
brcmf_c_arp_offload_set(drvr, BRCMF_ARPOL_MODE);
brcmf_c_arp_offload_enable(drvr, true);
/* Set up pkt filter */
for (i = 0; i < drvr->pktfilter_count; i++) {
brcmf_c_pktfilter_offload_set(drvr, drvr->pktfilter[i]);
brcmf_c_pktfilter_offload_enable(drvr, drvr->pktfilter[i],
0, true);
}
brcmf_os_proto_unblock(drvr);
return 0;
}
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