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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/init.h>
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/mmc/sdio_func.h>
#include <linux/random.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <linux/fcntl.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <linux/interrupt.h>
#include <linux/hardirq.h>
#include <net/cfg80211.h>
#include <defs.h>
#include <brcmu_utils.h>
#include <brcmu_wifi.h>
#include "dhd.h"
#include "dhd_bus.h"
#include "dhd_proto.h"
#include "dhd_dbg.h"
#include "wl_cfg80211.h"
#include "bcmchip.h"
#if defined(CONFIG_PM_SLEEP)
#include <linux/suspend.h>
atomic_t brcmf_mmc_suspend;
#endif /* defined(CONFIG_PM_SLEEP) */
MODULE_AUTHOR("Broadcom Corporation");
MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver.");
MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
MODULE_LICENSE("Dual BSD/GPL");
/* Interface control information */
struct brcmf_if {
struct brcmf_info *info; /* back pointer to brcmf_info */
/* OS/stack specifics */
struct net_device *net;
struct net_device_stats stats;
int idx; /* iface idx in dongle */
int state; /* interface state */
uint subunit; /* subunit */
u8 mac_addr[ETH_ALEN]; /* assigned MAC address */
bool attached; /* Delayed attachment when unset */
bool txflowcontrol; /* Per interface flow control indicator */
char name[IFNAMSIZ]; /* linux interface name */
};
/* Local private structure (extension of pub) */
struct brcmf_info {
struct brcmf_pub pub;
/* OS/stack specifics */
struct brcmf_if *iflist[BRCMF_MAX_IFS];
struct semaphore proto_sem;
wait_queue_head_t ioctl_resp_wait;
/* Thread to issue ioctl for multicast */
struct task_struct *sysioc_tsk;
struct semaphore sysioc_sem;
bool set_multicast;
bool set_macaddress;
u8 macvalue[ETH_ALEN];
atomic_t pend_8021x_cnt;
};
/* Error bits */
module_param(brcmf_msg_level, int, 0);
/* Spawn a thread for system ioctls (set mac, set mcast) */
uint brcmf_sysioc = true;
module_param(brcmf_sysioc, uint, 0);
/* ARP offload agent mode : Enable ARP Host Auto-Reply
and ARP Peer Auto-Reply */
uint brcmf_arp_mode = 0xb;
module_param(brcmf_arp_mode, uint, 0);
/* ARP offload enable */
uint brcmf_arp_enable = true;
module_param(brcmf_arp_enable, uint, 0);
/* Global Pkt filter enable control */
uint brcmf_pkt_filter_enable = true;
module_param(brcmf_pkt_filter_enable, uint, 0);
/* Pkt filter init setup */
uint brcmf_pkt_filter_init;
module_param(brcmf_pkt_filter_init, uint, 0);
/* Pkt filter mode control */
uint brcmf_master_mode = true;
module_param(brcmf_master_mode, uint, 0);
module_param(brcmf_dongle_memsize, int, 0);
/* Contorl fw roaming */
uint brcmf_roam = 1;
/* Control radio state */
uint brcmf_radio_up = 1;
/* Network inteface name */
char iface_name[IFNAMSIZ] = "wlan";
module_param_string(iface_name, iface_name, IFNAMSIZ, 0);
/* The following are specific to the SDIO dongle */
/* IOCTL response timeout */
int brcmf_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;
/* Idle timeout for backplane clock */
int brcmf_idletime = BRCMF_IDLETIME_TICKS;
module_param(brcmf_idletime, int, 0);
/* Use polling */
uint brcmf_poll;
module_param(brcmf_poll, uint, 0);
/* Use interrupts */
uint brcmf_intr = true;
module_param(brcmf_intr, uint, 0);
/* SDIO Drive Strength (in milliamps) */
uint brcmf_sdiod_drive_strength = 6;
module_param(brcmf_sdiod_drive_strength, uint, 0);
/* Tx/Rx bounds */
module_param(brcmf_txbound, uint, 0);
module_param(brcmf_rxbound, uint, 0);
#ifdef SDTEST
/* Echo packet generator (pkts/s) */
uint brcmf_pktgen;
module_param(brcmf_pktgen, uint, 0);
/* Echo packet len (0 => sawtooth, max 2040) */
uint brcmf_pktgen_len;
module_param(brcmf_pktgen_len, uint, 0);
#endif
static int brcmf_toe_get(struct brcmf_info *drvr_priv, int idx, u32 *toe_ol);
static int brcmf_toe_set(struct brcmf_info *drvr_priv, int idx, u32 toe_ol);
static int brcmf_host_event(struct brcmf_info *drvr_priv, int *ifidx, void *pktdata,
struct brcmf_event_msg *event_ptr,
void **data_ptr);
/*
* Generalized timeout mechanism. Uses spin sleep with exponential
* back-off until
* the sleep time reaches one jiffy, then switches over to task delay. Usage:
*
* brcmf_timeout_start(&tmo, usec);
* while (!brcmf_timeout_expired(&tmo))
* if (poll_something())
* break;
* if (brcmf_timeout_expired(&tmo))
* fatal();
*/
void brcmf_timeout_start(struct brcmf_timeout *tmo, uint usec)
{
tmo->limit = usec;
tmo->increment = 0;
tmo->elapsed = 0;
tmo->tick = 1000000 / HZ;
}
int brcmf_timeout_expired(struct brcmf_timeout *tmo)
{
/* Does nothing the first call */
if (tmo->increment == 0) {
tmo->increment = 1;
return 0;
}
if (tmo->elapsed >= tmo->limit)
return 1;
/* Add the delay that's about to take place */
tmo->elapsed += tmo->increment;
if (tmo->increment < tmo->tick) {
udelay(tmo->increment);
tmo->increment *= 2;
if (tmo->increment > tmo->tick)
tmo->increment = tmo->tick;
} else {
wait_queue_head_t delay_wait;
DECLARE_WAITQUEUE(wait, current);
int pending;
init_waitqueue_head(&delay_wait);
add_wait_queue(&delay_wait, &wait);
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(1);
pending = signal_pending(current);
remove_wait_queue(&delay_wait, &wait);
set_current_state(TASK_RUNNING);
if (pending)
return 1; /* Interrupted */
}
return 0;
}
static int brcmf_net2idx(struct brcmf_info *drvr_priv, struct net_device *net)
{
int i = 0;
while (i < BRCMF_MAX_IFS) {
if (drvr_priv->iflist[i] && (drvr_priv->iflist[i]->net == net))
return i;
i++;
}
return BRCMF_BAD_IF;
}
int brcmf_ifname2idx(struct brcmf_info *drvr_priv, char *name)
{
int i = BRCMF_MAX_IFS;
if (name == NULL || *name == '\0')
return 0;
while (--i > 0)
if (drvr_priv->iflist[i]
&& !strncmp(drvr_priv->iflist[i]->name, name, IFNAMSIZ))
break;
BRCMF_TRACE(("%s: return idx %d for \"%s\"\n", __func__, i, name));
return i; /* default - the primary interface */
}
char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx)
{
struct brcmf_info *drvr_priv = drvr->info;
if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
BRCMF_ERROR(("%s: ifidx %d out of range\n", __func__, ifidx));
return "<if_bad>";
}
if (drvr_priv->iflist[ifidx] == NULL) {
BRCMF_ERROR(("%s: null i/f %d\n", __func__, ifidx));
return "<if_null>";
}
if (drvr_priv->iflist[ifidx]->net)
return drvr_priv->iflist[ifidx]->net->name;
return "<if_none>";
}
static void _brcmf_set_multicast_list(struct brcmf_info *drvr_priv, int ifidx)
{
struct net_device *dev;
struct netdev_hw_addr *ha;
u32 allmulti, cnt;
struct brcmf_ioctl ioc;
char *buf, *bufp;
uint buflen;
int ret;
dev = drvr_priv->iflist[ifidx]->net;
cnt = netdev_mc_count(dev);
/* Determine initial value of allmulti flag */
allmulti = (dev->flags & IFF_ALLMULTI) ? true : false;
/* Send down the multicast list first. */
buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETH_ALEN);
bufp = buf = kmalloc(buflen, GFP_ATOMIC);
if (!bufp) {
BRCMF_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
brcmf_ifname(&drvr_priv->pub, ifidx), cnt));
return;
}
strcpy(bufp, "mcast_list");
bufp += strlen("mcast_list") + 1;
cnt = cpu_to_le32(cnt);
memcpy(bufp, &cnt, sizeof(cnt));
bufp += sizeof(cnt);
netdev_for_each_mc_addr(ha, dev) {
if (!cnt)
break;
memcpy(bufp, ha->addr, ETH_ALEN);
bufp += ETH_ALEN;
cnt--;
}
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = BRCMF_C_SET_VAR;
ioc.buf = buf;
ioc.len = buflen;
ioc.set = true;
ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
BRCMF_ERROR(("%s: set mcast_list failed, cnt %d\n",
brcmf_ifname(&drvr_priv->pub, ifidx), cnt));
allmulti = cnt ? true : allmulti;
}
kfree(buf);
/* Now send the allmulti setting. This is based on the setting in the
* net_device flags, but might be modified above to be turned on if we
* were trying to set some addresses and dongle rejected it...
*/
buflen = sizeof("allmulti") + sizeof(allmulti);
buf = kmalloc(buflen, GFP_ATOMIC);
if (!buf) {
BRCMF_ERROR(("%s: out of memory for allmulti\n",
brcmf_ifname(&drvr_priv->pub, ifidx)));
return;
}
allmulti = cpu_to_le32(allmulti);
if (!brcmu_mkiovar
("allmulti", (void *)&allmulti, sizeof(allmulti), buf, buflen)) {
BRCMF_ERROR(("%s: mkiovar failed for allmulti, datalen %d "
"buflen %u\n",
brcmf_ifname(&drvr_priv->pub, ifidx),
(int)sizeof(allmulti), buflen));
kfree(buf);
return;
}
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = BRCMF_C_SET_VAR;
ioc.buf = buf;
ioc.len = buflen;
ioc.set = true;
ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
BRCMF_ERROR(("%s: set allmulti %d failed\n",
brcmf_ifname(&drvr_priv->pub, ifidx),
le32_to_cpu(allmulti)));
}
kfree(buf);
/* Finally, pick up the PROMISC flag as well, like the NIC
driver does */
allmulti = (dev->flags & IFF_PROMISC) ? true : false;
allmulti = cpu_to_le32(allmulti);
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = BRCMF_C_SET_PROMISC;
ioc.buf = &allmulti;
ioc.len = sizeof(allmulti);
ioc.set = true;
ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
BRCMF_ERROR(("%s: set promisc %d failed\n",
brcmf_ifname(&drvr_priv->pub, ifidx),
le32_to_cpu(allmulti)));
}
}
static int _brcmf_set_mac_address(struct brcmf_info *drvr_priv, int ifidx, u8 *addr)
{
char buf[32];
struct brcmf_ioctl ioc;
int ret;
BRCMF_TRACE(("%s enter\n", __func__));
if (!brcmu_mkiovar
("cur_etheraddr", (char *)addr, ETH_ALEN, buf, 32)) {
BRCMF_ERROR(("%s: mkiovar failed for cur_etheraddr\n",
brcmf_ifname(&drvr_priv->pub, ifidx)));
return -1;
}
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = BRCMF_C_SET_VAR;
ioc.buf = buf;
ioc.len = 32;
ioc.set = true;
ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
BRCMF_ERROR(("%s: set cur_etheraddr failed\n",
brcmf_ifname(&drvr_priv->pub, ifidx)));
} else {
memcpy(drvr_priv->iflist[ifidx]->net->dev_addr, addr, ETH_ALEN);
}
return ret;
}
#ifdef SOFTAP
extern struct net_device *ap_net_dev;
#endif
/* Virtual interfaces only ((ifp && ifp->info && ifp->idx == true) */
static void brcmf_op_if(struct brcmf_if *ifp)
{
struct brcmf_info *drvr_priv;
int ret = 0, err = 0;
drvr_priv = ifp->info;
BRCMF_TRACE(("%s: idx %d, state %d\n", __func__, ifp->idx, ifp->state));
switch (ifp->state) {
case BRCMF_E_IF_ADD:
/*
* Delete the existing interface before overwriting it
* in case we missed the BRCMF_E_IF_DEL event.
*/
if (ifp->net != NULL) {
BRCMF_ERROR(("%s: ERROR: netdev:%s already exists, "
"try free & unregister\n",
__func__, ifp->net->name));
netif_stop_queue(ifp->net);
unregister_netdev(ifp->net);
free_netdev(ifp->net);
}
/* Allocate etherdev, including space for private structure */
ifp->net = alloc_etherdev(sizeof(drvr_priv));
if (!ifp->net) {
BRCMF_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
ret = -ENOMEM;
}
if (ret == 0) {
strcpy(ifp->net->name, ifp->name);
memcpy(netdev_priv(ifp->net), &drvr_priv, sizeof(drvr_priv));
err = brcmf_net_attach(&drvr_priv->pub, ifp->idx);
if (err != 0) {
BRCMF_ERROR(("%s: brcmf_net_attach failed, "
"err %d\n",
__func__, err));
ret = -EOPNOTSUPP;
} else {
#ifdef SOFTAP
/* semaphore that the soft AP CODE
waits on */
extern struct semaphore ap_eth_sema;
/* save ptr to wl0.1 netdev for use
in wl_iw.c */
ap_net_dev = ifp->net;
/* signal to the SOFTAP 'sleeper' thread,
wl0.1 is ready */
up(&ap_eth_sema);
#endif
BRCMF_TRACE(("\n ==== pid:%x, net_device for "
"if:%s created ===\n\n",
current->pid, ifp->net->name));
ifp->state = 0;
}
}
break;
case BRCMF_E_IF_DEL:
if (ifp->net != NULL) {
BRCMF_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n",
__func__));
netif_stop_queue(ifp->net);
unregister_netdev(ifp->net);
ret = BRCMF_DEL_IF; /* Make sure the free_netdev()
is called */
}
break;
default:
BRCMF_ERROR(("%s: bad op %d\n", __func__, ifp->state));
break;
}
if (ret < 0) {
if (ifp->net)
free_netdev(ifp->net);
drvr_priv->iflist[ifp->idx] = NULL;
kfree(ifp);
#ifdef SOFTAP
if (ifp->net == ap_net_dev)
ap_net_dev = NULL; /* NULL SOFTAP global
wl0.1 as well */
#endif /* SOFTAP */
}
}
static int _brcmf_sysioc_thread(void *data)
{
struct brcmf_info *drvr_priv = (struct brcmf_info *) data;
int i;
#ifdef SOFTAP
bool in_ap = false;
#endif
allow_signal(SIGTERM);
while (down_interruptible(&drvr_priv->sysioc_sem) == 0) {
if (kthread_should_stop())
break;
for (i = 0; i < BRCMF_MAX_IFS; i++) {
struct brcmf_if *ifentry = drvr_priv->iflist[i];
if (ifentry) {
#ifdef SOFTAP
in_ap = (ap_net_dev != NULL);
#endif /* SOFTAP */
if (ifentry->state)
brcmf_op_if(ifentry);
#ifdef SOFTAP
if (drvr_priv->iflist[i] == NULL) {
BRCMF_TRACE(("\n\n %s: interface %d "
"removed!\n", __func__,
i));
continue;
}
if (in_ap && drvr_priv->set_macaddress) {
BRCMF_TRACE(("attempt to set MAC for"
" %s in AP Mode,"
" blocked.\n",
ifentry->net->name));
drvr_priv->set_macaddress = false;
continue;
}
if (in_ap && drvr_priv->set_multicast) {
BRCMF_TRACE(("attempt to set MULTICAST "
"list for %s in AP Mode, "
"blocked.\n",
ifentry->net->name));
drvr_priv->set_multicast = false;
continue;
}
#endif /* SOFTAP */
if (drvr_priv->set_multicast) {
drvr_priv->set_multicast = false;
_brcmf_set_multicast_list(drvr_priv, i);
}
if (drvr_priv->set_macaddress) {
drvr_priv->set_macaddress = false;
_brcmf_set_mac_address(drvr_priv, i,
drvr_priv->macvalue);
}
}
}
}
return 0;
}
static int brcmf_netdev_set_mac_address(struct net_device *dev, void *addr)
{
int ret = 0;
struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(dev);
struct sockaddr *sa = (struct sockaddr *)addr;
int ifidx;
ifidx = brcmf_net2idx(drvr_priv, dev);
if (ifidx == BRCMF_BAD_IF)
return -1;
memcpy(&drvr_priv->macvalue, sa->sa_data, ETH_ALEN);
drvr_priv->set_macaddress = true;
up(&drvr_priv->sysioc_sem);
return ret;
}
static void brcmf_netdev_set_multicast_list(struct net_device *dev)
{
struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(dev);
int ifidx;
ifidx = brcmf_net2idx(drvr_priv, dev);
if (ifidx == BRCMF_BAD_IF)
return;
drvr_priv->set_multicast = true;
up(&drvr_priv->sysioc_sem);
}
int brcmf_sendpkt(struct brcmf_pub *drvr, int ifidx, struct sk_buff *pktbuf)
{
struct brcmf_info *drvr_priv = drvr->info;
/* Reject if down */
if (!drvr->up || (drvr->busstate == BRCMF_BUS_DOWN))
return -ENODEV;
/* Update multicast statistic */
if (pktbuf->len >= ETH_ALEN) {
u8 *pktdata = (u8 *) (pktbuf->data);
struct ethhdr *eh = (struct ethhdr *)pktdata;
if (is_multicast_ether_addr(eh->h_dest))
drvr->tx_multicast++;
if (ntohs(eh->h_proto) == ETH_P_PAE)
atomic_inc(&drvr_priv->pend_8021x_cnt);
}
/* If the protocol uses a data header, apply it */
brcmf_proto_hdrpush(drvr, ifidx, pktbuf);
/* Use bus module to send data frame */
return brcmf_sdbrcm_bus_txdata(drvr->bus, pktbuf);
}
static int brcmf_netdev_start_xmit(struct sk_buff *skb, struct net_device *net)
{
int ret;
struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
int ifidx;
BRCMF_TRACE(("%s: Enter\n", __func__));
/* Reject if down */
if (!drvr_priv->pub.up || (drvr_priv->pub.busstate == BRCMF_BUS_DOWN)) {
BRCMF_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n",
__func__, drvr_priv->pub.up,
drvr_priv->pub.busstate));
netif_stop_queue(net);
return -ENODEV;
}
ifidx = brcmf_net2idx(drvr_priv, net);
if (ifidx == BRCMF_BAD_IF) {
BRCMF_ERROR(("%s: bad ifidx %d\n", __func__, ifidx));
netif_stop_queue(net);
return -ENODEV;
}
/* Make sure there's enough room for any header */
if (skb_headroom(skb) < drvr_priv->pub.hdrlen) {
struct sk_buff *skb2;
BRCMF_INFO(("%s: insufficient headroom\n",
brcmf_ifname(&drvr_priv->pub, ifidx)));
drvr_priv->pub.tx_realloc++;
skb2 = skb_realloc_headroom(skb, drvr_priv->pub.hdrlen);
dev_kfree_skb(skb);
skb = skb2;
if (skb == NULL) {
BRCMF_ERROR(("%s: skb_realloc_headroom failed\n",
brcmf_ifname(&drvr_priv->pub, ifidx)));
ret = -ENOMEM;
goto done;
}
}
ret = brcmf_sendpkt(&drvr_priv->pub, ifidx, skb);
done:
if (ret)
drvr_priv->pub.dstats.tx_dropped++;
else
drvr_priv->pub.tx_packets++;
/* Return ok: we always eat the packet */
return 0;
}
void brcmf_txflowcontrol(struct brcmf_pub *drvr, int ifidx, bool state)
{
struct net_device *net;
struct brcmf_info *drvr_priv = drvr->info;
BRCMF_TRACE(("%s: Enter\n", __func__));
drvr->txoff = state;
net = drvr_priv->iflist[ifidx]->net;
if (state == ON)
netif_stop_queue(net);
else
netif_wake_queue(net);
}
void brcmf_rx_frame(struct brcmf_pub *drvr, int ifidx, struct sk_buff *skb,
int numpkt)
{
struct brcmf_info *drvr_priv = drvr->info;
unsigned char *eth;
uint len;
void *data;
struct sk_buff *pnext, *save_pktbuf;
int i;
struct brcmf_if *ifp;
struct brcmf_event_msg event;
BRCMF_TRACE(("%s: Enter\n", __func__));
save_pktbuf = skb;
for (i = 0; skb && i < numpkt; i++, skb = pnext) {
pnext = skb->next;
skb->next = NULL;
/* Get the protocol, maintain skb around eth_type_trans()
* The main reason for this hack is for the limitation of
* Linux 2.4 where 'eth_type_trans' uses the
* 'net->hard_header_len'
* to perform skb_pull inside vs ETH_HLEN. Since to avoid
* coping of the packet coming from the network stack to add
* BDC, Hardware header etc, during network interface
* registration
* we set the 'net->hard_header_len' to ETH_HLEN + extra space
* required
* for BDC, Hardware header etc. and not just the ETH_HLEN
*/
eth = skb->data;
len = skb->len;
ifp = drvr_priv->iflist[ifidx];
if (ifp == NULL)
ifp = drvr_priv->iflist[0];
skb->dev = ifp->net;
skb->protocol = eth_type_trans(skb, skb->dev);
if (skb->pkt_type == PACKET_MULTICAST)
drvr_priv->pub.rx_multicast++;
skb->data = eth;
skb->len = len;
/* Strip header, count, deliver upward */
skb_pull(skb, ETH_HLEN);
/* Process special event packets and then discard them */
if (ntohs(skb->protocol) == ETH_P_LINK_CTL)
brcmf_host_event(drvr_priv, &ifidx,
skb_mac_header(skb),
&event, &data);
if (drvr_priv->iflist[ifidx] &&
!drvr_priv->iflist[ifidx]->state)
ifp = drvr_priv->iflist[ifidx];
if (ifp->net)
ifp->net->last_rx = jiffies;
drvr->dstats.rx_bytes += skb->len;
drvr->rx_packets++; /* Local count */
if (in_interrupt()) {
netif_rx(skb);
} else {
/* If the receive is not processed inside an ISR,
* the softirqd must be woken explicitly to service
* the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
* by netif_rx_ni(), but in earlier kernels, we need
* to do it manually.
*/
netif_rx_ni(skb);
}
}
}
void brcmf_txcomplete(struct brcmf_pub *drvr, struct sk_buff *txp, bool success)
{
uint ifidx;
struct brcmf_info *drvr_priv = drvr->info;
struct ethhdr *eh;
u16 type;
brcmf_proto_hdrpull(drvr, &ifidx, txp);
eh = (struct ethhdr *)(txp->data);
type = ntohs(eh->h_proto);
if (type == ETH_P_PAE)
atomic_dec(&drvr_priv->pend_8021x_cnt);
}
static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *net)
{
struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
struct brcmf_if *ifp;
int ifidx;
BRCMF_TRACE(("%s: Enter\n", __func__));
ifidx = brcmf_net2idx(drvr_priv, net);
if (ifidx == BRCMF_BAD_IF)
return NULL;
ifp = drvr_priv->iflist[ifidx];
if (drvr_priv->pub.up) {
/* Use the protocol to get dongle stats */
brcmf_proto_dstats(&drvr_priv->pub);
}
/* Copy dongle stats to net device stats */
ifp->stats.rx_packets = drvr_priv->pub.dstats.rx_packets;
ifp->stats.tx_packets = drvr_priv->pub.dstats.tx_packets;
ifp->stats.rx_bytes = drvr_priv->pub.dstats.rx_bytes;
ifp->stats.tx_bytes = drvr_priv->pub.dstats.tx_bytes;
ifp->stats.rx_errors = drvr_priv->pub.dstats.rx_errors;
ifp->stats.tx_errors = drvr_priv->pub.dstats.tx_errors;
ifp->stats.rx_dropped = drvr_priv->pub.dstats.rx_dropped;
ifp->stats.tx_dropped = drvr_priv->pub.dstats.tx_dropped;
ifp->stats.multicast = drvr_priv->pub.dstats.multicast;
return &ifp->stats;
}
/* Retrieve current toe component enables, which are kept
as a bitmap in toe_ol iovar */
static int brcmf_toe_get(struct brcmf_info *drvr_priv, int ifidx, u32 *toe_ol)
{
struct brcmf_ioctl ioc;
char buf[32];
int ret;
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = BRCMF_C_GET_VAR;
ioc.buf = buf;
ioc.len = (uint) sizeof(buf);
ioc.set = false;
strcpy(buf, "toe_ol");
ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
/* Check for older dongle image that doesn't support toe_ol */
if (ret == -EIO) {
BRCMF_ERROR(("%s: toe not supported by device\n",
brcmf_ifname(&drvr_priv->pub, ifidx)));
return -EOPNOTSUPP;
}
BRCMF_INFO(("%s: could not get toe_ol: ret=%d\n",
brcmf_ifname(&drvr_priv->pub, ifidx), ret));
return ret;
}
memcpy(toe_ol, buf, sizeof(u32));
return 0;
}
/* Set current toe component enables in toe_ol iovar,
and set toe global enable iovar */
static int brcmf_toe_set(struct brcmf_info *drvr_priv, int ifidx, u32 toe_ol)
{
struct brcmf_ioctl ioc;
char buf[32];
int toe, ret;
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = BRCMF_C_SET_VAR;
ioc.buf = buf;
ioc.len = (uint) sizeof(buf);
ioc.set = true;
/* Set toe_ol as requested */
strcpy(buf, "toe_ol");
memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(u32));
ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
BRCMF_ERROR(("%s: could not set toe_ol: ret=%d\n",
brcmf_ifname(&drvr_priv->pub, ifidx), ret));
return ret;
}
/* Enable toe globally only if any components are enabled. */
toe = (toe_ol != 0);
strcpy(buf, "toe");
memcpy(&buf[sizeof("toe")], &toe, sizeof(u32));
ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
BRCMF_ERROR(("%s: could not set toe: ret=%d\n",
brcmf_ifname(&drvr_priv->pub, ifidx), ret));
return ret;
}
return 0;
}
static void brcmf_ethtool_get_drvinfo(struct net_device *net,
struct ethtool_drvinfo *info)
{
struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
sprintf(info->driver, KBUILD_MODNAME);
sprintf(info->version, "%lu", drvr_priv->pub.drv_version);
sprintf(info->fw_version, "%s", BCM4329_FW_NAME);
sprintf(info->bus_info, "%s",
dev_name(&brcmf_cfg80211_get_sdio_func()->dev));
}
struct ethtool_ops brcmf_ethtool_ops = {
.get_drvinfo = brcmf_ethtool_get_drvinfo
};
static int brcmf_ethtool(struct brcmf_info *drvr_priv, void *uaddr)
{
struct ethtool_drvinfo info;
char drvname[sizeof(info.driver)];
u32 cmd;
struct ethtool_value edata;
u32 toe_cmpnt, csum_dir;
int ret;
BRCMF_TRACE(("%s: Enter\n", __func__));
/* all ethtool calls start with a cmd word */
if (copy_from_user(&cmd, uaddr, sizeof(u32)))
return -EFAULT;
switch (cmd) {
case ETHTOOL_GDRVINFO:
/* Copy out any request driver name */
if (copy_from_user(&info, uaddr, sizeof(info)))
return -EFAULT;
strncpy(drvname, info.driver, sizeof(info.driver));
drvname[sizeof(info.driver) - 1] = '\0';
/* clear struct for return */
memset(&info, 0, sizeof(info));
info.cmd = cmd;
/* if requested, identify ourselves */
if (strcmp(drvname, "?dhd") == 0) {
sprintf(info.driver, "dhd");
strcpy(info.version, BRCMF_VERSION_STR);
}
/* otherwise, require dongle to be up */
else if (!drvr_priv->pub.up) {
BRCMF_ERROR(("%s: dongle is not up\n", __func__));
return -ENODEV;
}
/* finally, report dongle driver type */
else if (drvr_priv->pub.iswl)
sprintf(info.driver, "wl");
else
sprintf(info.driver, "xx");
sprintf(info.version, "%lu", drvr_priv->pub.drv_version);
if (copy_to_user(uaddr, &info, sizeof(info)))
return -EFAULT;
BRCMF_CTL(("%s: given %*s, returning %s\n", __func__,
(int)sizeof(drvname), drvname, info.driver));
break;
/* Get toe offload components from dongle */
case ETHTOOL_GRXCSUM:
case ETHTOOL_GTXCSUM:
ret = brcmf_toe_get(drvr_priv, 0, &toe_cmpnt);
if (ret < 0)
return ret;
csum_dir =
(cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
edata.cmd = cmd;
edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
if (copy_to_user(uaddr, &edata, sizeof(edata)))
return -EFAULT;
break;
/* Set toe offload components in dongle */
case ETHTOOL_SRXCSUM:
case ETHTOOL_STXCSUM:
if (copy_from_user(&edata, uaddr, sizeof(edata)))
return -EFAULT;
/* Read the current settings, update and write back */
ret = brcmf_toe_get(drvr_priv, 0, &toe_cmpnt);
if (ret < 0)
return ret;
csum_dir =
(cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
if (edata.data != 0)
toe_cmpnt |= csum_dir;
else
toe_cmpnt &= ~csum_dir;
ret = brcmf_toe_set(drvr_priv, 0, toe_cmpnt);
if (ret < 0)
return ret;
/* If setting TX checksum mode, tell Linux the new mode */
if (cmd == ETHTOOL_STXCSUM) {
if (edata.data)
drvr_priv->iflist[0]->net->features |=
NETIF_F_IP_CSUM;
else
drvr_priv->iflist[0]->net->features &=
~NETIF_F_IP_CSUM;
}
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static int brcmf_netdev_ioctl_entry(struct net_device *net, struct ifreq *ifr,
int cmd)
{
struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
struct brcmf_c_ioctl ioc;
int bcmerror = 0;
int buflen = 0;
void *buf = NULL;
uint driver = 0;
int ifidx;
bool is_set_key_cmd;
ifidx = brcmf_net2idx(drvr_priv, net);
BRCMF_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __func__, ifidx, cmd));
if (ifidx == BRCMF_BAD_IF)
return -1;
if (cmd == SIOCETHTOOL)
return brcmf_ethtool(drvr_priv, (void *)ifr->ifr_data);
if (cmd != SIOCDEVPRIVATE)
return -EOPNOTSUPP;
memset(&ioc, 0, sizeof(ioc));
/* Copy the ioc control structure part of ioctl request */
if (copy_from_user(&ioc, ifr->ifr_data, sizeof(struct brcmf_ioctl))) {
bcmerror = -EINVAL;
goto done;
}
/* Copy out any buffer passed */
if (ioc.buf) {
buflen = min_t(int, ioc.len, BRCMF_IOCTL_MAXLEN);
/* optimization for direct ioctl calls from kernel */
/*
if (segment_eq(get_fs(), KERNEL_DS)) {
buf = ioc.buf;
} else {
*/
{
buf = kmalloc(buflen, GFP_ATOMIC);
if (!buf) {
bcmerror = -ENOMEM;
goto done;
}
if (copy_from_user(buf, ioc.buf, buflen)) {
bcmerror = -EINVAL;
goto done;
}
}
}
/* To differentiate read 4 more byes */
if ((copy_from_user(&driver, (char *)ifr->ifr_data +
sizeof(struct brcmf_ioctl), sizeof(uint)) != 0)) {
bcmerror = -EINVAL;
goto done;
}
if (!capable(CAP_NET_ADMIN)) {
bcmerror = -EPERM;
goto done;
}
/* check for local brcmf ioctl and handle it */
if (driver == BRCMF_IOCTL_MAGIC) {
bcmerror = brcmf_c_ioctl((void *)&drvr_priv->pub, &ioc, buf, buflen);
if (bcmerror)
drvr_priv->pub.bcmerror = bcmerror;
goto done;
}
/* send to dongle (must be up, and wl) */
if ((drvr_priv->pub.busstate != BRCMF_BUS_DATA)) {
BRCMF_ERROR(("%s DONGLE_DOWN,__func__\n", __func__));
bcmerror = -EIO;
goto done;
}
if (!drvr_priv->pub.iswl) {
bcmerror = -EIO;
goto done;
}
/*
* Intercept BRCMF_C_SET_KEY IOCTL - serialize M4 send and
* set key IOCTL to prevent M4 encryption.
*/
is_set_key_cmd = ((ioc.cmd == BRCMF_C_SET_KEY) ||
((ioc.cmd == BRCMF_C_SET_VAR) &&
!(strncmp("wsec_key", ioc.buf, 9))) ||
((ioc.cmd == BRCMF_C_SET_VAR) &&
!(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
if (is_set_key_cmd)
brcmf_netdev_wait_pend8021x(net);
bcmerror =
brcmf_proto_ioctl(&drvr_priv->pub, ifidx, (struct brcmf_ioctl *)&ioc,
buf, buflen);
done:
if (!bcmerror && buf && ioc.buf) {
if (copy_to_user(ioc.buf, buf, buflen))
bcmerror = -EFAULT;
}
kfree(buf);
if (bcmerror > 0)
bcmerror = 0;
return bcmerror;
}
static int brcmf_netdev_stop(struct net_device *net)
{
#if !defined(IGNORE_ETH0_DOWN)
struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
BRCMF_TRACE(("%s: Enter\n", __func__));
brcmf_cfg80211_down();
if (drvr_priv->pub.up == 0)
return 0;
/* Set state and stop OS transmissions */
drvr_priv->pub.up = 0;
netif_stop_queue(net);
#else
BRCMF_ERROR(("BYPASS %s:due to BRCM compilation: under investigation\n",
__func__));
#endif /* !defined(IGNORE_ETH0_DOWN) */
return 0;
}
static int brcmf_netdev_open(struct net_device *net)
{
struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
u32 toe_ol;
int ifidx = brcmf_net2idx(drvr_priv, net);
s32 ret = 0;
BRCMF_TRACE(("%s: ifidx %d\n", __func__, ifidx));
if (ifidx == 0) { /* do it only for primary eth0 */
/* try to bring up bus */
ret = brcmf_bus_start(&drvr_priv->pub);
if (ret != 0) {
BRCMF_ERROR(("%s: failed with code %d\n",
__func__, ret));
return -1;
}
atomic_set(&drvr_priv->pend_8021x_cnt, 0);
memcpy(net->dev_addr, drvr_priv->pub.mac, ETH_ALEN);
/* Get current TOE mode from dongle */
if (brcmf_toe_get(drvr_priv, ifidx, &toe_ol) >= 0
&& (toe_ol & TOE_TX_CSUM_OL) != 0)
drvr_priv->iflist[ifidx]->net->features |=
NETIF_F_IP_CSUM;
else
drvr_priv->iflist[ifidx]->net->features &=
~NETIF_F_IP_CSUM;
}
/* Allow transmit calls */
netif_start_queue(net);
drvr_priv->pub.up = 1;
if (unlikely(brcmf_cfg80211_up())) {
BRCMF_ERROR(("%s: failed to bring up cfg80211\n",
__func__));
return -1;
}
return ret;
}
int
brcmf_add_if(struct brcmf_info *drvr_priv, int ifidx, void *handle, char *name,
u8 *mac_addr, u32 flags, u8 bssidx)
{
struct brcmf_if *ifp;
BRCMF_TRACE(("%s: idx %d, handle->%p\n", __func__, ifidx, handle));
ifp = drvr_priv->iflist[ifidx];
if (!ifp) {
ifp = kmalloc(sizeof(struct brcmf_if), GFP_ATOMIC);
if (!ifp) {
BRCMF_ERROR(("%s: OOM - struct brcmf_if\n", __func__));
return -ENOMEM;
}
}
memset(ifp, 0, sizeof(struct brcmf_if));
ifp->info = drvr_priv;
drvr_priv->iflist[ifidx] = ifp;
strlcpy(ifp->name, name, IFNAMSIZ);
if (mac_addr != NULL)
memcpy(&ifp->mac_addr, mac_addr, ETH_ALEN);
if (handle == NULL) {
ifp->state = BRCMF_E_IF_ADD;
ifp->idx = ifidx;
up(&drvr_priv->sysioc_sem);
} else
ifp->net = (struct net_device *)handle;
return 0;
}
void brcmf_del_if(struct brcmf_info *drvr_priv, int ifidx)
{
struct brcmf_if *ifp;
BRCMF_TRACE(("%s: idx %d\n", __func__, ifidx));
ifp = drvr_priv->iflist[ifidx];
if (!ifp) {
BRCMF_ERROR(("%s: Null interface\n", __func__));
return;
}
ifp->state = BRCMF_E_IF_DEL;
ifp->idx = ifidx;
up(&drvr_priv->sysioc_sem);
}
struct brcmf_pub *brcmf_attach(struct brcmf_bus *bus, uint bus_hdrlen)
{
struct brcmf_info *drvr_priv = NULL;
struct net_device *net;
BRCMF_TRACE(("%s: Enter\n", __func__));
/* Allocate etherdev, including space for private structure */
net = alloc_etherdev(sizeof(drvr_priv));
if (!net) {
BRCMF_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
goto fail;
}
/* Allocate primary brcmf_info */
drvr_priv = kzalloc(sizeof(struct brcmf_info), GFP_ATOMIC);
if (!drvr_priv) {
BRCMF_ERROR(("%s: OOM - alloc brcmf_info\n", __func__));
goto fail;
}
/*
* Save the brcmf_info into the priv
*/
memcpy(netdev_priv(net), &drvr_priv, sizeof(drvr_priv));
/* Set network interface name if it was provided as module parameter */
if (iface_name[0]) {
int len;
char ch;
strncpy(net->name, iface_name, IFNAMSIZ);
net->name[IFNAMSIZ - 1] = 0;
len = strlen(net->name);
ch = net->name[len - 1];
if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
strcat(net->name, "%d");
}
if (brcmf_add_if(drvr_priv, 0, (void *)net, net->name, NULL, 0, 0) ==
BRCMF_BAD_IF)
goto fail;
net->netdev_ops = NULL;
sema_init(&drvr_priv->proto_sem, 1);
/* Initialize other structure content */
init_waitqueue_head(&drvr_priv->ioctl_resp_wait);
/* Link to info module */
drvr_priv->pub.info = drvr_priv;
/* Link to bus module */
drvr_priv->pub.bus = bus;
drvr_priv->pub.hdrlen = bus_hdrlen;
/* Attach and link in the protocol */
if (brcmf_proto_attach(&drvr_priv->pub) != 0) {
BRCMF_ERROR(("brcmf_prot_attach failed\n"));
goto fail;
}
/* Attach and link in the cfg80211 */
if (unlikely(brcmf_cfg80211_attach(net, &drvr_priv->pub))) {
BRCMF_ERROR(("wl_cfg80211_attach failed\n"));
goto fail;
}
if (brcmf_sysioc) {
sema_init(&drvr_priv->sysioc_sem, 0);
drvr_priv->sysioc_tsk = kthread_run(_brcmf_sysioc_thread, drvr_priv,
"_brcmf_sysioc");
if (IS_ERR(drvr_priv->sysioc_tsk)) {
printk(KERN_WARNING
"_brcmf_sysioc thread failed to start\n");
drvr_priv->sysioc_tsk = NULL;
}
} else
drvr_priv->sysioc_tsk = NULL;
/*
* Save the brcmf_info into the priv
*/
memcpy(netdev_priv(net), &drvr_priv, sizeof(drvr_priv));
#if defined(CONFIG_PM_SLEEP)
atomic_set(&brcmf_mmc_suspend, false);
#endif /* defined(CONFIG_PM_SLEEP) */
return &drvr_priv->pub;
fail:
if (net)
free_netdev(net);
if (drvr_priv)
brcmf_detach(&drvr_priv->pub);
return NULL;
}
int brcmf_bus_start(struct brcmf_pub *drvr)
{
int ret = -1;
struct brcmf_info *drvr_priv = drvr->info;
/* Room for "event_msgs" + '\0' + bitvec */
char iovbuf[BRCMF_EVENTING_MASK_LEN + 12];
BRCMF_TRACE(("%s:\n", __func__));
/* Bring up the bus */
ret = brcmf_sdbrcm_bus_init(&drvr_priv->pub, true);
if (ret != 0) {
BRCMF_ERROR(("%s, brcmf_sdbrcm_bus_init failed %d\n", __func__,
ret));
return ret;
}
/* If bus is not ready, can't come up */
if (drvr_priv->pub.busstate != BRCMF_BUS_DATA) {
BRCMF_ERROR(("%s failed bus is not ready\n", __func__));
return -ENODEV;
}
brcmu_mkiovar("event_msgs", drvr->eventmask, BRCMF_EVENTING_MASK_LEN,
iovbuf, sizeof(iovbuf));
brcmf_proto_cdc_query_ioctl(drvr, 0, BRCMF_C_GET_VAR, iovbuf,
sizeof(iovbuf));
memcpy(drvr->eventmask, iovbuf, BRCMF_EVENTING_MASK_LEN);
setbit(drvr->eventmask, BRCMF_E_SET_SSID);
setbit(drvr->eventmask, BRCMF_E_PRUNE);
setbit(drvr->eventmask, BRCMF_E_AUTH);
setbit(drvr->eventmask, BRCMF_E_REASSOC);
setbit(drvr->eventmask, BRCMF_E_REASSOC_IND);
setbit(drvr->eventmask, BRCMF_E_DEAUTH_IND);
setbit(drvr->eventmask, BRCMF_E_DISASSOC_IND);
setbit(drvr->eventmask, BRCMF_E_DISASSOC);
setbit(drvr->eventmask, BRCMF_E_JOIN);
setbit(drvr->eventmask, BRCMF_E_ASSOC_IND);
setbit(drvr->eventmask, BRCMF_E_PSK_SUP);
setbit(drvr->eventmask, BRCMF_E_LINK);
setbit(drvr->eventmask, BRCMF_E_NDIS_LINK);
setbit(drvr->eventmask, BRCMF_E_MIC_ERROR);
setbit(drvr->eventmask, BRCMF_E_PMKID_CACHE);
setbit(drvr->eventmask, BRCMF_E_TXFAIL);
setbit(drvr->eventmask, BRCMF_E_JOIN_START);
setbit(drvr->eventmask, BRCMF_E_SCAN_COMPLETE);
/* enable dongle roaming event */
drvr->pktfilter_count = 1;
/* Setup filter to allow only unicast */
drvr->pktfilter[0] = "100 0 0 0 0x01 0x00";
/* Bus is ready, do any protocol initialization */
ret = brcmf_proto_init(&drvr_priv->pub);
if (ret < 0)
return ret;
return 0;
}
static struct net_device_ops brcmf_netdev_ops_pri = {
.ndo_open = brcmf_netdev_open,
.ndo_stop = brcmf_netdev_stop,
.ndo_get_stats = brcmf_netdev_get_stats,
.ndo_do_ioctl = brcmf_netdev_ioctl_entry,
.ndo_start_xmit = brcmf_netdev_start_xmit,
.ndo_set_mac_address = brcmf_netdev_set_mac_address,
.ndo_set_multicast_list = brcmf_netdev_set_multicast_list
};
int brcmf_net_attach(struct brcmf_pub *drvr, int ifidx)
{
struct brcmf_info *drvr_priv = drvr->info;
struct net_device *net;
u8 temp_addr[ETH_ALEN] = {
0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
BRCMF_TRACE(("%s: ifidx %d\n", __func__, ifidx));
net = drvr_priv->iflist[ifidx]->net;
net->netdev_ops = &brcmf_netdev_ops_pri;
/*
* We have to use the primary MAC for virtual interfaces
*/
if (ifidx != 0) {
/* for virtual interfaces use the primary MAC */
memcpy(temp_addr, drvr_priv->pub.mac, ETH_ALEN);
}
if (ifidx == 1) {
BRCMF_TRACE(("%s ACCESS POINT MAC:\n", __func__));
/* ACCESSPOINT INTERFACE CASE */
temp_addr[0] |= 0X02; /* set bit 2 ,
- Locally Administered address */
}
net->hard_header_len = ETH_HLEN + drvr_priv->pub.hdrlen;
net->ethtool_ops = &brcmf_ethtool_ops;
drvr_priv->pub.rxsz = net->mtu + net->hard_header_len +
drvr_priv->pub.hdrlen;
memcpy(net->dev_addr, temp_addr, ETH_ALEN);
if (register_netdev(net) != 0) {
BRCMF_ERROR(("%s: couldn't register the net device\n",
__func__));
goto fail;
}
BRCMF_INFO(("%s: Broadcom Dongle Host Driver\n", net->name));
return 0;
fail:
net->netdev_ops = NULL;
return -EBADE;
}
static void brcmf_bus_detach(struct brcmf_pub *drvr)
{
struct brcmf_info *drvr_priv;
BRCMF_TRACE(("%s: Enter\n", __func__));
if (drvr) {
drvr_priv = drvr->info;
if (drvr_priv) {
/* Stop the protocol module */
brcmf_proto_stop(&drvr_priv->pub);
/* Stop the bus module */
brcmf_sdbrcm_bus_stop(drvr_priv->pub.bus, true);
}
}
}
void brcmf_detach(struct brcmf_pub *drvr)
{
struct brcmf_info *drvr_priv;
BRCMF_TRACE(("%s: Enter\n", __func__));
if (drvr) {
drvr_priv = drvr->info;
if (drvr_priv) {
struct brcmf_if *ifp;
int i;
for (i = 1; i < BRCMF_MAX_IFS; i++)
if (drvr_priv->iflist[i])
brcmf_del_if(drvr_priv, i);
ifp = drvr_priv->iflist[0];
if (ifp->net->netdev_ops == &brcmf_netdev_ops_pri) {
brcmf_netdev_stop(ifp->net);
unregister_netdev(ifp->net);
}
if (drvr_priv->sysioc_tsk) {
send_sig(SIGTERM, drvr_priv->sysioc_tsk, 1);
kthread_stop(drvr_priv->sysioc_tsk);
drvr_priv->sysioc_tsk = NULL;
}
brcmf_bus_detach(drvr);
if (drvr->prot)
brcmf_proto_detach(drvr);
brcmf_cfg80211_detach();
free_netdev(ifp->net);
kfree(ifp);
kfree(drvr_priv);
}
}
}
static void __exit brcmf_module_cleanup(void)
{
BRCMF_TRACE(("%s: Enter\n", __func__));
brcmf_bus_unregister();
}
static int __init brcmf_module_init(void)
{
int error;
BRCMF_TRACE(("%s: Enter\n", __func__));
error = brcmf_bus_register();
if (error) {
BRCMF_ERROR(("%s: brcmf_bus_register failed\n", __func__));
goto failed;
}
return 0;
failed:
return -EINVAL;
}
module_init(brcmf_module_init);
module_exit(brcmf_module_cleanup);
int brcmf_os_proto_block(struct brcmf_pub *drvr)
{
struct brcmf_info *drvr_priv = drvr->info;
if (drvr_priv) {
down(&drvr_priv->proto_sem);
return 1;
}
return 0;
}
int brcmf_os_proto_unblock(struct brcmf_pub *drvr)
{
struct brcmf_info *drvr_priv = drvr->info;
if (drvr_priv) {
up(&drvr_priv->proto_sem);
return 1;
}
return 0;
}
unsigned int brcmf_os_get_ioctl_resp_timeout(void)
{
return (unsigned int)brcmf_ioctl_timeout_msec;
}
void brcmf_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
{
brcmf_ioctl_timeout_msec = (int)timeout_msec;
}
int brcmf_os_ioctl_resp_wait(struct brcmf_pub *drvr, uint *condition,
bool *pending)
{
struct brcmf_info *drvr_priv = drvr->info;
DECLARE_WAITQUEUE(wait, current);
int timeout = brcmf_ioctl_timeout_msec;
/* Convert timeout in millsecond to jiffies */
timeout = timeout * HZ / 1000;
/* Wait until control frame is available */
add_wait_queue(&drvr_priv->ioctl_resp_wait, &wait);
set_current_state(TASK_INTERRUPTIBLE);
while (!(*condition) && (!signal_pending(current) && timeout))
timeout = schedule_timeout(timeout);
if (signal_pending(current))
*pending = true;
set_current_state(TASK_RUNNING);
remove_wait_queue(&drvr_priv->ioctl_resp_wait, &wait);
return timeout;
}
int brcmf_os_ioctl_resp_wake(struct brcmf_pub *drvr)
{
struct brcmf_info *drvr_priv = drvr->info;
if (waitqueue_active(&drvr_priv->ioctl_resp_wait))
wake_up_interruptible(&drvr_priv->ioctl_resp_wait);
return 0;
}
static int brcmf_host_event(struct brcmf_info *drvr_priv, int *ifidx, void *pktdata,
struct brcmf_event_msg *event, void **data)
{
int bcmerror = 0;
bcmerror = brcmf_c_host_event(drvr_priv, ifidx, pktdata, event, data);
if (bcmerror != 0)
return bcmerror;
if (drvr_priv->iflist[*ifidx]->net)
brcmf_cfg80211_event(drvr_priv->iflist[*ifidx]->net,
event, *data);
return bcmerror;
}
int brcmf_netdev_reset(struct net_device *dev, u8 flag)
{
struct brcmf_info *drvr_priv = *(struct brcmf_info **)netdev_priv(dev);
brcmf_bus_devreset(&drvr_priv->pub, flag);
return 1;
}
static int brcmf_get_pend_8021x_cnt(struct brcmf_info *drvr_priv)
{
return atomic_read(&drvr_priv->pend_8021x_cnt);
}
#define MAX_WAIT_FOR_8021X_TX 10
int brcmf_netdev_wait_pend8021x(struct net_device *dev)
{
struct brcmf_info *drvr_priv = *(struct brcmf_info **)netdev_priv(dev);
int timeout = 10 * HZ / 1000;
int ntimes = MAX_WAIT_FOR_8021X_TX;
int pend = brcmf_get_pend_8021x_cnt(drvr_priv);
while (ntimes && pend) {
if (pend) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(timeout);
set_current_state(TASK_RUNNING);
ntimes--;
}
pend = brcmf_get_pend_8021x_cnt(drvr_priv);
}
return pend;
}
#ifdef BCMDBG
int brcmf_write_to_file(struct brcmf_pub *drvr, u8 *buf, int size)
{
int ret = 0;
struct file *fp;
mm_segment_t old_fs;
loff_t pos = 0;
/* change to KERNEL_DS address limit */
old_fs = get_fs();
set_fs(KERNEL_DS);
/* open file to write */
fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
if (!fp) {
BRCMF_ERROR(("%s: open file error\n", __func__));
ret = -1;
goto exit;
}
/* Write buf to file */
fp->f_op->write(fp, buf, size, &pos);
exit:
/* free buf before return */
kfree(buf);
/* close file before return */
if (fp)
filp_close(fp, current->files);
/* restore previous address limit */
set_fs(old_fs);
return ret;
}
#endif /* BCMDBG */
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