path: root/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c

/*
 * 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.
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#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/hardirq.h>
#include <linux/mutex.h>
#include <linux/wait.h>
#include <linux/module.h>
#include <net/cfg80211.h>
#include <net/rtnetlink.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 "fwil.h"

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");

#define MAX_WAIT_FOR_8021X_TX		50	/* msecs */

/* Error bits */
int brcmf_msg_level = BRCMF_ERROR_VAL;
module_param(brcmf_msg_level, int, 0);

int brcmf_ifname2idx(struct brcmf_pub *drvr, char *name)
{
	int i = BRCMF_MAX_IFS;
	struct brcmf_if *ifp;

	if (name == NULL || *name == '\0')
		return 0;

	while (--i > 0) {
		ifp = drvr->iflist[i];
		if (ifp && !strncmp(ifp->ndev->name, name, IFNAMSIZ))
			break;
	}

	brcmf_dbg(TRACE, "return idx %d for \"%s\"\n", i, name);

	return i;		/* default - the primary interface */
}

char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx)
{
	if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
		brcmf_dbg(ERROR, "ifidx %d out of range\n", ifidx);
		return "<if_bad>";
	}

	if (drvr->iflist[ifidx] == NULL) {
		brcmf_dbg(ERROR, "null i/f %d\n", ifidx);
		return "<if_null>";
	}

	if (drvr->iflist[ifidx]->ndev)
		return drvr->iflist[ifidx]->ndev->name;

	return "<if_none>";
}

static void _brcmf_set_multicast_list(struct work_struct *work)
{
	struct brcmf_if *ifp;
	struct net_device *ndev;
	struct netdev_hw_addr *ha;
	u32 cmd_value, cnt;
	__le32 cnt_le;
	char *buf, *bufp;
	u32 buflen;
	s32 err;
	struct brcmf_pub *drvr = container_of(work, struct brcmf_pub,
						    multicast_work);

	brcmf_dbg(TRACE, "enter\n");

	ifp = drvr->iflist[0];
	ndev = ifp->ndev;

	/* Determine initial value of allmulti flag */
	cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false;

	/* Send down the multicast list first. */
	cnt = netdev_mc_count(ndev);
	buflen = sizeof(cnt) + (cnt * ETH_ALEN);
	buf = kmalloc(buflen, GFP_ATOMIC);
	if (!buf)
		return;
	bufp = buf;

	cnt_le = cpu_to_le32(cnt);
	memcpy(bufp, &cnt_le, sizeof(cnt_le));
	bufp += sizeof(cnt_le);

	netdev_for_each_mc_addr(ha, ndev) {
		if (!cnt)
			break;
		memcpy(bufp, ha->addr, ETH_ALEN);
		bufp += ETH_ALEN;
		cnt--;
	}

	err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen);
	if (err < 0) {
		brcmf_dbg(ERROR, "Setting mcast_list failed, %d\n", err);
		cmd_value = cnt ? true : cmd_value;
	}

	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...
	 */
	err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value);
	if (err < 0)
		brcmf_dbg(ERROR, "Setting allmulti failed, %d\n", err);

	/*Finally, pick up the PROMISC flag */