blob: 90cc92979c0257a4d95765fe3b7f7794ca26fcf3 [file] [log] [blame]
/*
* Broadcom Dongle Host Driver (DHD), Linux-specific network interface
* Basically selected code segments from usb-cdc.c and usb-rndis.c
*
* Copyright (C) 1999-2010, Broadcom Corporation
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2 (the "GPL"),
* available at http://www.broadcom.com/licenses/GPLv2.php, with the
* following added to such license:
*
* As a special exception, the copyright holders of this software give you
* permission to link this software with independent modules, and to copy and
* distribute the resulting executable under terms of your choice, provided that
* you also meet, for each linked independent module, the terms and conditions of
* the license of that module. An independent module is a module which is not
* derived from this software. The special exception does not apply to any
* modifications of the software.
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a license
* other than the GPL, without Broadcom's express prior written consent.
*
* $Id: dhd_linux.c,v 1.65.4.9.2.12.2.104.4.35 2010/11/17 03:13:21 Exp $
*/
#ifdef CONFIG_WIFI_CONTROL_FUNC
#include <linux/platform_device.h>
#endif
#include <typedefs.h>
#include <linuxver.h>
#include <osl.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/random.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <linux/fcntl.h>
#include <linux/fs.h>
#include <linux/inetdevice.h>
#include <asm/uaccess.h>
#include <asm/unaligned.h>
#include <epivers.h>
#include <bcmutils.h>
#include <bcmendian.h>
#include <proto/ethernet.h>
#include <dngl_stats.h>
#include <dhd.h>
#include <dhd_bus.h>
#include <dhd_proto.h>
#include <dhd_dbg.h>
#include <wl_iw.h>
#ifdef CONFIG_HAS_WAKELOCK
#include <linux/wakelock.h>
#endif
#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
#include <linux/wlan_plat.h>
struct semaphore wifi_control_sem;
struct dhd_bus *g_bus;
static struct wifi_platform_data *wifi_control_data = NULL;
static struct resource *wifi_irqres = NULL;
int wifi_get_irq_number(unsigned long *irq_flags_ptr)
{
if (wifi_irqres) {
*irq_flags_ptr = wifi_irqres->flags & IRQF_TRIGGER_MASK;
return (int)wifi_irqres->start;
}
#ifdef CUSTOM_OOB_GPIO_NUM
return CUSTOM_OOB_GPIO_NUM;
#else
return -1;
#endif
}
int wifi_set_carddetect(int on)
{
printk("%s = %d\n", __FUNCTION__, on);
if (wifi_control_data && wifi_control_data->set_carddetect) {
wifi_control_data->set_carddetect(on);
}
return 0;
}
int wifi_set_power(int on, unsigned long msec)
{
printk("%s = %d\n", __FUNCTION__, on);
if (wifi_control_data && wifi_control_data->set_power) {
wifi_control_data->set_power(on);
}
if (msec)
mdelay(msec);
return 0;
}
int wifi_set_reset(int on, unsigned long msec)
{
DHD_TRACE(("%s = %d\n", __FUNCTION__, on));
if (wifi_control_data && wifi_control_data->set_reset) {
wifi_control_data->set_reset(on);
}
if (msec)
mdelay(msec);
return 0;
}
int wifi_get_mac_addr(unsigned char *buf)
{
DHD_TRACE(("%s\n", __FUNCTION__));
if (!buf)
return -EINVAL;
if (wifi_control_data && wifi_control_data->get_mac_addr) {
return wifi_control_data->get_mac_addr(buf);
}
return -EOPNOTSUPP;
}
static int wifi_probe(struct platform_device *pdev)
{
struct wifi_platform_data *wifi_ctrl =
(struct wifi_platform_data *)(pdev->dev.platform_data);
DHD_TRACE(("## %s\n", __FUNCTION__));
wifi_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "bcm4329_wlan_irq");
wifi_control_data = wifi_ctrl;
wifi_set_power(1, 0); /* Power On */
wifi_set_carddetect(1); /* CardDetect (0->1) */
up(&wifi_control_sem);
return 0;
}
static int wifi_remove(struct platform_device *pdev)
{
struct wifi_platform_data *wifi_ctrl =
(struct wifi_platform_data *)(pdev->dev.platform_data);
DHD_TRACE(("## %s\n", __FUNCTION__));
wifi_control_data = wifi_ctrl;
wifi_set_power(0, 0); /* Power Off */
wifi_set_carddetect(0); /* CardDetect (1->0) */
up(&wifi_control_sem);
return 0;
}
static int wifi_suspend(struct platform_device *pdev, pm_message_t state)
{
DHD_TRACE(("##> %s\n", __FUNCTION__));
return 0;
}
static int wifi_resume(struct platform_device *pdev)
{
DHD_TRACE(("##> %s\n", __FUNCTION__));
return 0;
}
static struct platform_driver wifi_device = {
.probe = wifi_probe,
.remove = wifi_remove,
.suspend = wifi_suspend,
.resume = wifi_resume,
.driver = {
.name = "bcm4329_wlan",
}
};
int wifi_add_dev(void)
{
DHD_TRACE(("## Calling platform_driver_register\n"));
return platform_driver_register(&wifi_device);
}
void wifi_del_dev(void)
{
DHD_TRACE(("## Unregister platform_driver_register\n"));
platform_driver_unregister(&wifi_device);
}
#endif /* defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
static int dhd_device_event(struct notifier_block *this, unsigned long event,
void *ptr);
static struct notifier_block dhd_notifier = {
.notifier_call = dhd_device_event
};
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP)
#include <linux/suspend.h>
volatile bool dhd_mmc_suspend = FALSE;
DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */
#if defined(OOB_INTR_ONLY)
extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable);
#endif /* defined(OOB_INTR_ONLY) */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
MODULE_LICENSE("GPL v2");
#endif /* LinuxVer */
#if LINUX_VERSION_CODE == KERNEL_VERSION(2, 6, 15)
const char *
print_tainted()
{
return "";
}
#endif /* LINUX_VERSION_CODE == KERNEL_VERSION(2, 6, 15) */
/* Linux wireless extension support */
#if defined(CONFIG_WIRELESS_EXT)
#include <wl_iw.h>
#endif /* defined(CONFIG_WIRELESS_EXT) */
extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len);
#if defined(CONFIG_HAS_EARLYSUSPEND)
#include <linux/earlysuspend.h>
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
#ifdef PKT_FILTER_SUPPORT
extern void dhd_pktfilter_offload_set(dhd_pub_t * dhd, char *arg);
extern void dhd_pktfilter_offload_enable(dhd_pub_t * dhd, char *arg, int enable, int master_mode);
#endif
/* Interface control information */
typedef struct dhd_if {
struct dhd_info *info; /* back pointer to dhd_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 */
uint8 mac_addr[ETHER_ADDR_LEN]; /* assigned MAC address */
bool attached; /* Delayed attachment when unset */
bool txflowcontrol; /* Per interface flow control indicator */
char name[IFNAMSIZ+1]; /* linux interface name */
} dhd_if_t;
/* Local private structure (extension of pub) */
typedef struct dhd_info {
#if defined(CONFIG_WIRELESS_EXT)
wl_iw_t iw; /* wireless extensions state (must be first) */
#endif /* defined(CONFIG_WIRELESS_EXT) */
dhd_pub_t pub;
/* OS/stack specifics */
dhd_if_t *iflist[DHD_MAX_IFS];
struct semaphore proto_sem;
wait_queue_head_t ioctl_resp_wait;
struct timer_list timer;
bool wd_timer_valid;
struct tasklet_struct tasklet;
spinlock_t sdlock;
spinlock_t txqlock;
spinlock_t dhd_lock;
/* Thread based operation */
bool threads_only;
struct semaphore sdsem;
long watchdog_pid;
struct semaphore watchdog_sem;
struct completion watchdog_exited;
long dpc_pid;
struct semaphore dpc_sem;
struct completion dpc_exited;
/* Wakelocks */
#ifdef CONFIG_HAS_WAKELOCK
struct wake_lock wl_wifi; /* Wifi wakelock */
struct wake_lock wl_rxwake; /* Wifi rx wakelock */
#endif
spinlock_t wl_lock;
int wl_count;
int wl_packet;
int hang_was_sent; /* flag that message was send at least once */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
struct mutex wl_start_lock; /* mutex when START called to prevent any other Linux calls */
#endif
/* Thread to issue ioctl for multicast */
long sysioc_pid;
struct semaphore sysioc_sem;
struct completion sysioc_exited;
bool set_multicast;
bool set_macaddress;
struct ether_addr macvalue;
wait_queue_head_t ctrl_wait;
atomic_t pend_8021x_cnt;
#ifdef CONFIG_HAS_EARLYSUSPEND
struct early_suspend early_suspend;
#endif /* CONFIG_HAS_EARLYSUSPEND */
} dhd_info_t;
/* Definitions to provide path to the firmware and nvram
* example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt"
*/
char firmware_path[MOD_PARAM_PATHLEN];
char nvram_path[MOD_PARAM_PATHLEN];
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
struct semaphore dhd_registration_sem;
#define DHD_REGISTRATION_TIMEOUT 12000 /* msec : allowed time to finished dhd registration */
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
/* load firmware and/or nvram values from the filesystem */
module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0);
module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0);
/* Error bits */
module_param(dhd_msg_level, int, 0);
/* Spawn a thread for system ioctls (set mac, set mcast) */
uint dhd_sysioc = TRUE;
module_param(dhd_sysioc, uint, 0);
/* Watchdog interval */
uint dhd_watchdog_ms = 10;
module_param(dhd_watchdog_ms, uint, 0);
#ifdef DHD_DEBUG
/* Console poll interval */
uint dhd_console_ms = 0;
module_param(dhd_console_ms, uint, 0);
#endif /* DHD_DEBUG */
/* ARP offload agent mode : Enable ARP Host Auto-Reply and ARP Peer Auto-Reply */
uint dhd_arp_mode = 0xb;
module_param(dhd_arp_mode, uint, 0);
/* ARP offload enable */
uint dhd_arp_enable = TRUE;
module_param(dhd_arp_enable, uint, 0);
/* Global Pkt filter enable control */
uint dhd_pkt_filter_enable = TRUE;
module_param(dhd_pkt_filter_enable, uint, 0);
/* Pkt filter init setup */
uint dhd_pkt_filter_init = 0;
module_param(dhd_pkt_filter_init, uint, 0);
/* Pkt filter mode control */
uint dhd_master_mode = TRUE;
module_param(dhd_master_mode, uint, 1);
/* Watchdog thread priority, -1 to use kernel timer */
int dhd_watchdog_prio = 97;
module_param(dhd_watchdog_prio, int, 0);
/* DPC thread priority, -1 to use tasklet */
int dhd_dpc_prio = 98;
module_param(dhd_dpc_prio, int, 0);
/* DPC thread priority, -1 to use tasklet */
extern int dhd_dongle_memsize;
module_param(dhd_dongle_memsize, int, 0);
/* Control fw roaming */
#ifdef CUSTOMER_HW2
uint dhd_roam = 0;
#else
uint dhd_roam = 1;
#endif
/* Control radio state */
uint dhd_radio_up = 1;
/* Network inteface name */
char iface_name[IFNAMSIZ];
module_param_string(iface_name, iface_name, IFNAMSIZ, 0);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
#define DAEMONIZE(a) daemonize(a); \
allow_signal(SIGKILL); \
allow_signal(SIGTERM);
#else /* Linux 2.4 (w/o preemption patch) */
#define RAISE_RX_SOFTIRQ() \
cpu_raise_softirq(smp_processor_id(), NET_RX_SOFTIRQ)
#define DAEMONIZE(a) daemonize(); \
do { if (a) \
strncpy(current->comm, a, MIN(sizeof(current->comm), (strlen(a) + 1))); \
} while (0);
#endif /* LINUX_VERSION_CODE */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
#define BLOCKABLE() (!in_atomic())
#else
#define BLOCKABLE() (!in_interrupt())
#endif
/* The following are specific to the SDIO dongle */
/* IOCTL response timeout */
int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;
/* Idle timeout for backplane clock */
int dhd_idletime = DHD_IDLETIME_TICKS;
module_param(dhd_idletime, int, 0);
/* Use polling */
uint dhd_poll = FALSE;
module_param(dhd_poll, uint, 0);
/* Use interrupts */
uint dhd_intr = TRUE;
module_param(dhd_intr, uint, 0);
/* SDIO Drive Strength (in milliamps) */
uint dhd_sdiod_drive_strength = 6;
module_param(dhd_sdiod_drive_strength, uint, 0);
/* Tx/Rx bounds */
extern uint dhd_txbound;
extern uint dhd_rxbound;
module_param(dhd_txbound, uint, 0);
module_param(dhd_rxbound, uint, 0);
/* Deferred transmits */
extern uint dhd_deferred_tx;
module_param(dhd_deferred_tx, uint, 0);
#ifdef SDTEST
/* Echo packet generator (pkts/s) */
uint dhd_pktgen = 0;
module_param(dhd_pktgen, uint, 0);
/* Echo packet len (0 => sawtooth, max 2040) */
uint dhd_pktgen_len = 0;
module_param(dhd_pktgen_len, uint, 0);
#endif
/* Version string to report */
#ifdef DHD_DEBUG
#ifndef SRCBASE
#define SRCBASE "drivers/net/wireless/bcm4329"
#endif
#define DHD_COMPILED "\nCompiled in " SRCBASE
#else
#define DHD_COMPILED
#endif
static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR
#ifdef DHD_DEBUG
"\nCompiled in " SRCBASE " on " __DATE__ " at " __TIME__
#endif
;
#if defined(CONFIG_WIRELESS_EXT)
struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev);
#endif /* defined(CONFIG_WIRELESS_EXT) */
static void dhd_dpc(ulong data);
/* forward decl */
extern int dhd_wait_pend8021x(struct net_device *dev);
#ifdef TOE
#ifndef BDC
#error TOE requires BDC
#endif /* !BDC */
static int dhd_toe_get(dhd_info_t *dhd, int idx, uint32 *toe_ol);
static int dhd_toe_set(dhd_info_t *dhd, int idx, uint32 toe_ol);
#endif /* TOE */
static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
wl_event_msg_t *event_ptr, void **data_ptr);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP)
static int dhd_sleep_pm_callback(struct notifier_block *nfb, unsigned long action, void *ignored)
{
int ret = NOTIFY_DONE;
switch (action) {
case PM_HIBERNATION_PREPARE:
case PM_SUSPEND_PREPARE:
dhd_mmc_suspend = TRUE;
ret = NOTIFY_OK;
break;
case PM_POST_HIBERNATION:
case PM_POST_SUSPEND:
dhd_mmc_suspend = FALSE;
ret = NOTIFY_OK;
break;
}
smp_mb();
return ret;
}
static struct notifier_block dhd_sleep_pm_notifier = {
.notifier_call = dhd_sleep_pm_callback,
.priority = 0
};
extern int register_pm_notifier(struct notifier_block *nb);
extern int unregister_pm_notifier(struct notifier_block *nb);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */
static void dhd_set_packet_filter(int value, dhd_pub_t *dhd)
{
#ifdef PKT_FILTER_SUPPORT
DHD_TRACE(("%s: %d\n", __FUNCTION__, value));
/* 1 - Enable packet filter, only allow unicast packet to send up */
/* 0 - Disable packet filter */
if (dhd_pkt_filter_enable) {
int i;
for (i = 0; i < dhd->pktfilter_count; i++) {
dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
value, dhd_master_mode);
}
}
#endif
}
#if defined(CONFIG_HAS_EARLYSUSPEND)
static int dhd_set_suspend(int value, dhd_pub_t *dhd)
{
int power_mode = PM_MAX;
/* wl_pkt_filter_enable_t enable_parm; */
char iovbuf[32];
int bcn_li_dtim = 3;
#ifdef CUSTOMER_HW2
uint roamvar = 1;
#endif /* CUSTOMER_HW2 */
DHD_TRACE(("%s: enter, value = %d in_suspend = %d\n",
__FUNCTION__, value, dhd->in_suspend));
if (dhd && dhd->up) {
if (value && dhd->in_suspend) {
/* Kernel suspended */
DHD_TRACE(("%s: force extra Suspend setting \n", __FUNCTION__));
dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
(char *)&power_mode, sizeof(power_mode));
/* Enable packet filter, only allow unicast packet to send up */
dhd_set_packet_filter(1, dhd);
/* if dtim skip setup as default force it to wake each thrid dtim
* for better power saving.
* Note that side effect is chance to miss BC/MC packet
*/
bcn_li_dtim = dhd_get_dtim_skip(dhd);
bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
4, iovbuf, sizeof(iovbuf));
dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
#ifdef CUSTOMER_HW2
/* Disable build-in roaming during suspend */
bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf, sizeof(iovbuf));
dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
#endif /* CUSTOMER_HW2 */
} else {
/* Kernel resumed */
DHD_TRACE(("%s: Remove extra suspend setting \n", __FUNCTION__));
power_mode = PM_FAST;
dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM, (char *)&power_mode,
sizeof(power_mode));
/* disable pkt filter */
dhd_set_packet_filter(0, dhd);
/* restore pre-suspend setting for dtim_skip */
bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip,
4, iovbuf, sizeof(iovbuf));
dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
#ifdef CUSTOMER_HW2
roamvar = dhd_roam;
bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf, sizeof(iovbuf));
dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
#endif /* CUSTOMER_HW2 */
}
}
return 0;
}
static void dhd_suspend_resume_helper(struct dhd_info *dhd, int val)
{
dhd_pub_t *dhdp = &dhd->pub;
dhd_os_wake_lock(dhdp);
dhd_os_proto_block(dhdp);
/* Set flag when early suspend was called */
dhdp->in_suspend = val;
if (!dhdp->suspend_disable_flag)
dhd_set_suspend(val, dhdp);
dhd_os_proto_unblock(dhdp);
dhd_os_wake_unlock(dhdp);
}
static void dhd_early_suspend(struct early_suspend *h)
{
struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
DHD_TRACE(("%s: enter\n", __FUNCTION__));
if (dhd)
dhd_suspend_resume_helper(dhd, 1);
}
static void dhd_late_resume(struct early_suspend *h)
{
struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
DHD_TRACE(("%s: enter\n", __FUNCTION__));
if (dhd)
dhd_suspend_resume_helper(dhd, 0);
}
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
/*
* Generalized timeout mechanism. Uses spin sleep with exponential back-off until
* the sleep time reaches one jiffy, then switches over to task delay. Usage:
*
* dhd_timeout_start(&tmo, usec);
* while (!dhd_timeout_expired(&tmo))
* if (poll_something())
* break;
* if (dhd_timeout_expired(&tmo))
* fatal();
*/
void
dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
{
tmo->limit = usec;
tmo->increment = 0;
tmo->elapsed = 0;
tmo->tick = 1000000 / HZ;
}
int
dhd_timeout_expired(dhd_timeout_t *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) {
OSL_DELAY(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
dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
{
int i = 0;
ASSERT(dhd);
while (i < DHD_MAX_IFS) {
if (dhd->iflist[i] && (dhd->iflist[i]->net == net))
return i;
i++;
}
return DHD_BAD_IF;
}
int
dhd_ifname2idx(dhd_info_t *dhd, char *name)
{
int i = DHD_MAX_IFS;
ASSERT(dhd);
if (name == NULL || *name == '\0')
return 0;
while (--i > 0)
if (dhd->iflist[i] && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ))
break;
DHD_TRACE(("%s: return idx %d for \"%s\"\n", __FUNCTION__, i, name));
return i; /* default - the primary interface */
}
char *
dhd_ifname(dhd_pub_t *dhdp, int ifidx)
{
dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
ASSERT(dhd);
if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
DHD_ERROR(("%s: ifidx %d out of range\n", __FUNCTION__, ifidx));
return "<if_bad>";
}
if (dhd->iflist[ifidx] == NULL) {
DHD_ERROR(("%s: null i/f %d\n", __FUNCTION__, ifidx));
return "<if_null>";
}
if (dhd->iflist[ifidx]->net)
return dhd->iflist[ifidx]->net->name;
return "<if_none>";
}
static void
_dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
{
struct net_device *dev;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
struct netdev_hw_addr *ha;
#else
struct dev_mc_list *mclist;
#endif
uint32 allmulti, cnt;
wl_ioctl_t ioc;
char *buf, *bufp;
uint buflen;
int ret;
ASSERT(dhd && dhd->iflist[ifidx]);
dev = dhd->iflist[ifidx]->net;
netif_addr_lock_bh(dev);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
cnt = netdev_mc_count(dev);
#else
cnt = dev->mc_count;
#endif
netif_addr_unlock_bh(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 * ETHER_ADDR_LEN);
if (!(bufp = buf = MALLOC(dhd->pub.osh, buflen))) {
DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
dhd_ifname(&dhd->pub, ifidx), cnt));
return;
}
strcpy(bufp, "mcast_list");
bufp += strlen("mcast_list") + 1;
cnt = htol32(cnt);
memcpy(bufp, &cnt, sizeof(cnt));
bufp += sizeof(cnt);
netif_addr_lock_bh(dev);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
netdev_for_each_mc_addr(ha, dev) {
if (!cnt)
break;
memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
bufp += ETHER_ADDR_LEN;
cnt--;
}
#else
for (mclist = dev->mc_list;(mclist && (cnt > 0)); cnt--, mclist = mclist->next) {
memcpy(bufp, (void *)mclist->dmi_addr, ETHER_ADDR_LEN);
bufp += ETHER_ADDR_LEN;
}
#endif
netif_addr_unlock_bh(dev);
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = WLC_SET_VAR;
ioc.buf = buf;
ioc.len = buflen;
ioc.set = TRUE;
ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
dhd_ifname(&dhd->pub, ifidx), cnt));
allmulti = cnt ? TRUE : allmulti;
}
MFREE(dhd->pub.osh, buf, buflen);
/* 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);
if (!(buf = MALLOC(dhd->pub.osh, buflen))) {
DHD_ERROR(("%s: out of memory for allmulti\n", dhd_ifname(&dhd->pub, ifidx)));
return;
}
allmulti = htol32(allmulti);
if (!bcm_mkiovar("allmulti", (void*)&allmulti, sizeof(allmulti), buf, buflen)) {
DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d buflen %u\n",
dhd_ifname(&dhd->pub, ifidx), (int)sizeof(allmulti), buflen));
MFREE(dhd->pub.osh, buf, buflen);
return;
}
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = WLC_SET_VAR;
ioc.buf = buf;
ioc.len = buflen;
ioc.set = TRUE;
ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
DHD_ERROR(("%s: set allmulti %d failed\n",
dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
}
MFREE(dhd->pub.osh, buf, buflen);
/* Finally, pick up the PROMISC flag as well, like the NIC driver does */
allmulti = (dev->flags & IFF_PROMISC) ? TRUE : FALSE;
allmulti = htol32(allmulti);
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = WLC_SET_PROMISC;
ioc.buf = &allmulti;
ioc.len = sizeof(allmulti);
ioc.set = TRUE;
ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
DHD_ERROR(("%s: set promisc %d failed\n",
dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
}
}
static int
_dhd_set_mac_address(dhd_info_t *dhd, int ifidx, struct ether_addr *addr)
{
char buf[32];
wl_ioctl_t ioc;
int ret;
DHD_TRACE(("%s enter\n", __FUNCTION__));
if (!bcm_mkiovar("cur_etheraddr", (char*)addr, ETHER_ADDR_LEN, buf, 32)) {
DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n", dhd_ifname(&dhd->pub, ifidx)));
return -1;
}
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = WLC_SET_VAR;
ioc.buf = buf;
ioc.len = 32;
ioc.set = TRUE;
ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
if (ret < 0) {
DHD_ERROR(("%s: set cur_etheraddr failed\n", dhd_ifname(&dhd->pub, ifidx)));
} else {
memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN);
}
return ret;
}
#ifdef SOFTAP
extern struct net_device *ap_net_dev;
/* semaphore that the soft AP CODE waits on */
extern struct semaphore ap_eth_sema;
#endif
static void
dhd_op_if(dhd_if_t *ifp)
{
dhd_info_t *dhd;
int ret = 0, err = 0;
#ifdef SOFTAP
unsigned long flags;
#endif
ASSERT(ifp && ifp->info && ifp->idx); /* Virtual interfaces only */
dhd = ifp->info;
DHD_TRACE(("%s: idx %d, state %d\n", __FUNCTION__, ifp->idx, ifp->state));
switch (ifp->state) {
case WLC_E_IF_ADD:
/*
* Delete the existing interface before overwriting it
* in case we missed the WLC_E_IF_DEL event.
*/
if (ifp->net != NULL) {
DHD_ERROR(("%s: ERROR: netdev:%s already exists, try free & unregister \n",
__FUNCTION__, ifp->net->name));
netif_stop_queue(ifp->net);
unregister_netdev(ifp->net);
free_netdev(ifp->net);
}
/* Allocate etherdev, including space for private structure */
if (!(ifp->net = alloc_etherdev(sizeof(dhd)))) {
DHD_ERROR(("%s: OOM - alloc_etherdev\n", __FUNCTION__));
ret = -ENOMEM;
}
if (ret == 0) {
strcpy(ifp->net->name, ifp->name);
memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd));
if ((err = dhd_net_attach(&dhd->pub, ifp->idx)) != 0) {
DHD_ERROR(("%s: dhd_net_attach failed, err %d\n",
__FUNCTION__, err));
ret = -EOPNOTSUPP;
} else {
#ifdef SOFTAP
flags = dhd_os_spin_lock(&dhd->pub);
/* 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);
dhd_os_spin_unlock(&dhd->pub, flags);
#endif
DHD_TRACE(("\n ==== pid:%x, net_device for if:%s created ===\n\n",
current->pid, ifp->net->name));
ifp->state = 0;
}
}
break;
case WLC_E_IF_DEL:
if (ifp->net != NULL) {
DHD_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n", __FUNCTION__));
netif_stop_queue(ifp->net);
unregister_netdev(ifp->net);
ret = DHD_DEL_IF; /* Make sure the free_netdev() is called */
}
break;
default:
DHD_ERROR(("%s: bad op %d\n", __FUNCTION__, ifp->state));
ASSERT(!ifp->state);
break;
}
if (ret < 0) {
if (ifp->net) {
free_netdev(ifp->net);
}
dhd->iflist[ifp->idx] = NULL;
MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
#ifdef SOFTAP
flags = dhd_os_spin_lock(&dhd->pub);
if (ifp->net == ap_net_dev)
ap_net_dev = NULL; /* NULL SOFTAP global as well */
dhd_os_spin_unlock(&dhd->pub, flags);
#endif /* SOFTAP */
}
}
static int
_dhd_sysioc_thread(void *data)
{
dhd_info_t *dhd = (dhd_info_t *)data;
int i;
#ifdef SOFTAP
bool in_ap = FALSE;
unsigned long flags;
#endif
DAEMONIZE("dhd_sysioc");
while (down_interruptible(&dhd->sysioc_sem) == 0) {
dhd_os_start_lock(&dhd->pub);
dhd_os_wake_lock(&dhd->pub);
for (i = 0; i < DHD_MAX_IFS; i++) {
if (dhd->iflist[i]) {
DHD_TRACE(("%s: interface %d\n",__FUNCTION__, i));
#ifdef SOFTAP
flags = dhd_os_spin_lock(&dhd->pub);
in_ap = (ap_net_dev != NULL);
dhd_os_spin_unlock(&dhd->pub, flags);
#endif /* SOFTAP */
if (dhd->iflist[i]->state)
dhd_op_if(dhd->iflist[i]);
#ifdef SOFTAP
if (dhd->iflist[i] == NULL) {
DHD_TRACE(("%s: interface %d just been removed!\n\n", __FUNCTION__, i));
continue;
}
if (in_ap && dhd->set_macaddress) {
DHD_TRACE(("attempt to set MAC for %s in AP Mode blocked.\n", dhd->iflist[i]->net->name));
dhd->set_macaddress = FALSE;
continue;
}
if (in_ap && dhd->set_multicast) {
DHD_TRACE(("attempt to set MULTICAST list for %s in AP Mode blocked.\n", dhd->iflist[i]->net->name));
dhd->set_multicast = FALSE;
continue;
}
#endif /* SOFTAP */
if (dhd->set_multicast) {
dhd->set_multicast = FALSE;
_dhd_set_multicast_list(dhd, i);
}
if (dhd->set_macaddress) {
dhd->set_macaddress = FALSE;
_dhd_set_mac_address(dhd, i, &dhd->macvalue);
}
}
}
dhd_os_wake_unlock(&dhd->pub);
dhd_os_start_unlock(&dhd->pub);
}
DHD_TRACE(("%s: stopped\n",__FUNCTION__));
complete_and_exit(&dhd->sysioc_exited, 0);
}
static int
dhd_set_mac_address(struct net_device *dev, void *addr)
{
int ret = 0;
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
struct sockaddr *sa = (struct sockaddr *)addr;
int ifidx;
DHD_TRACE(("%s: Enter\n",__FUNCTION__));
ifidx = dhd_net2idx(dhd, dev);
if (ifidx == DHD_BAD_IF)
return -1;
ASSERT(dhd->sysioc_pid >= 0);
memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN);
dhd->set_macaddress = TRUE;
up(&dhd->sysioc_sem);
return ret;
}
static void
dhd_set_multicast_list(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
int ifidx;
DHD_TRACE(("%s: Enter\n",__FUNCTION__));
ifidx = dhd_net2idx(dhd, dev);
if (ifidx == DHD_BAD_IF)
return;
ASSERT(dhd->sysioc_pid >= 0);
dhd->set_multicast = TRUE;
up(&dhd->sysioc_sem);
}
int
dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
{
int ret;
dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
/* Reject if down */
if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN)) {
return -ENODEV;
}
/* Update multicast statistic */
if (PKTLEN(dhdp->osh, pktbuf) >= ETHER_ADDR_LEN) {
uint8 *pktdata = (uint8 *)PKTDATA(dhdp->osh, pktbuf);
struct ether_header *eh = (struct ether_header *)pktdata;
if (ETHER_ISMULTI(eh->ether_dhost))
dhdp->tx_multicast++;
if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X)
atomic_inc(&dhd->pend_8021x_cnt);
}
/* Look into the packet and update the packet priority */
if ((PKTPRIO(pktbuf) == 0))
pktsetprio(pktbuf, FALSE);
/* If the protocol uses a data header, apply it */
dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
/* Use bus module to send data frame */
#ifdef BCMDBUS
ret = dbus_send_pkt(dhdp->dbus, pktbuf, NULL /* pktinfo */);
#else
ret = dhd_bus_txdata(dhdp->bus, pktbuf);
#endif /* BCMDBUS */
return ret;
}
static int
dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
{
int ret;
void *pktbuf;
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
int ifidx;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
dhd_os_wake_lock(&dhd->pub);
/* Reject if down */
if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) {
DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n",
__FUNCTION__, dhd->pub.up, dhd->pub.busstate));
netif_stop_queue(net);
/* Send Event when bus down detected during data session */
if (dhd->pub.busstate == DHD_BUS_DOWN) {
DHD_ERROR(("%s: Event HANG send up\n", __FUNCTION__));
net_os_send_hang_message(net);
}
dhd_os_wake_unlock(&dhd->pub);
return -ENODEV;
}
ifidx = dhd_net2idx(dhd, net);
if (ifidx == DHD_BAD_IF) {
DHD_ERROR(("%s: bad ifidx %d\n", __FUNCTION__, ifidx));
netif_stop_queue(net);
dhd_os_wake_unlock(&dhd->pub);
return -ENODEV;
}
/* Make sure there's enough room for any header */
if (skb_headroom(skb) < dhd->pub.hdrlen) {
struct sk_buff *skb2;
DHD_INFO(("%s: insufficient headroom\n",
dhd_ifname(&dhd->pub, ifidx)));
dhd->pub.tx_realloc++;
skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen);
dev_kfree_skb(skb);
if ((skb = skb2) == NULL) {
DHD_ERROR(("%s: skb_realloc_headroom failed\n",
dhd_ifname(&dhd->pub, ifidx)));
ret = -ENOMEM;
goto done;
}
}
/* Convert to packet */
if (!(pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb))) {
DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
dhd_ifname(&dhd->pub, ifidx)));
dev_kfree_skb_any(skb);
ret = -ENOMEM;
goto done;
}
ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
done:
if (ret)
dhd->pub.dstats.tx_dropped++;
else
dhd->pub.tx_packets++;
dhd_os_wake_unlock(&dhd->pub);
/* Return ok: we always eat the packet */
return 0;
}
void
dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
{
struct net_device *net;
dhd_info_t *dhd = dhdp->info;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
dhdp->txoff = state;
ASSERT(dhd && dhd->iflist[ifidx]);
net = dhd->iflist[ifidx]->net;
if (state == ON)
netif_stop_queue(net);
else
netif_wake_queue(net);
}
void
dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt)
{
dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
struct sk_buff *skb;
uchar *eth;
uint len;
void * data, *pnext, *save_pktbuf;
int i;
dhd_if_t *ifp;
wl_event_msg_t event;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
save_pktbuf = pktbuf;
for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
pnext = PKTNEXT(dhdp->osh, pktbuf);
PKTSETNEXT(wl->sh.osh, pktbuf, NULL);
skb = PKTTONATIVE(dhdp->osh, pktbuf);
/* 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 = dhd->iflist[ifidx];
if (ifp == NULL)
ifp = dhd->iflist[0];
ASSERT(ifp);
skb->dev = ifp->net;
skb->protocol = eth_type_trans(skb, skb->dev);
if (skb->pkt_type == PACKET_MULTICAST) {
dhd->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 (ntoh16(skb->protocol) == ETHER_TYPE_BRCM)
dhd_wl_host_event(dhd, &ifidx,
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24)
skb->mac_header,
#else
skb->mac.raw,
#endif
&event,
&data);
ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state)
ifp = dhd->iflist[ifidx];
if (ifp->net)
ifp->net->last_rx = jiffies;
dhdp->dstats.rx_bytes += skb->len;
dhdp->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.
*/
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
netif_rx_ni(skb);
#else
ulong flags;
netif_rx(skb);
local_irq_save(flags);
RAISE_RX_SOFTIRQ();
local_irq_restore(flags);
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) */
}
}
dhd_os_wake_lock_timeout_enable(dhdp);
}
void
dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
{
/* Linux version has nothing to do */
return;
}
void
dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success)
{
uint ifidx;
dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
struct ether_header *eh;
uint16 type;
dhd_prot_hdrpull(dhdp, &ifidx, txp);
eh = (struct ether_header *)PKTDATA(dhdp->osh, txp);
type = ntoh16(eh->ether_type);
if (type == ETHER_TYPE_802_1X)
atomic_dec(&dhd->pend_8021x_cnt);
}
static struct net_device_stats *
dhd_get_stats(struct net_device *net)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
dhd_if_t *ifp;
int ifidx;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
ifidx = dhd_net2idx(dhd, net);
if (ifidx == DHD_BAD_IF)
return NULL;
ifp = dhd->iflist[ifidx];
ASSERT(dhd && ifp);
if (dhd->pub.up) {
/* Use the protocol to get dongle stats */
dhd_prot_dstats(&dhd->pub);
}
/* Copy dongle stats to net device stats */
ifp->stats.rx_packets = dhd->pub.dstats.rx_packets;
ifp->stats.tx_packets = dhd->pub.dstats.tx_packets;
ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes;
ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes;
ifp->stats.rx_errors = dhd->pub.dstats.rx_errors;
ifp->stats.tx_errors = dhd->pub.dstats.tx_errors;
ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped;
ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped;
ifp->stats.multicast = dhd->pub.dstats.multicast;
return &ifp->stats;
}
static int
dhd_watchdog_thread(void *data)
{
dhd_info_t *dhd = (dhd_info_t *)data;
/* This thread doesn't need any user-level access,
* so get rid of all our resources
*/
#ifdef DHD_SCHED
if (dhd_watchdog_prio > 0) {
struct sched_param param;
param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO)?
dhd_watchdog_prio:(MAX_RT_PRIO-1);
setScheduler(current, SCHED_FIFO, &param);
}
#endif /* DHD_SCHED */
DAEMONIZE("dhd_watchdog");
/* Run until signal received */
while (1) {
if (down_interruptible (&dhd->watchdog_sem) == 0) {
dhd_os_sdlock(&dhd->pub);
if (dhd->pub.dongle_reset == FALSE) {
DHD_TIMER(("%s:\n", __FUNCTION__));
/* Call the bus module watchdog */
dhd_bus_watchdog(&dhd->pub);
/* Count the tick for reference */
dhd->pub.tickcnt++;
/* Reschedule the watchdog */
if (dhd->wd_timer_valid)
mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
}
dhd_os_sdunlock(&dhd->pub);
dhd_os_wake_unlock(&dhd->pub);
} else {
break;
}
}
complete_and_exit(&dhd->watchdog_exited, 0);
}
static void
dhd_watchdog(ulong data)
{
dhd_info_t *dhd = (dhd_info_t *)data;
dhd_os_wake_lock(&dhd->pub);
if (dhd->pub.dongle_reset) {
dhd_os_wake_unlock(&dhd->pub);
return;
}
if (dhd->watchdog_pid >= 0) {
up(&dhd->watchdog_sem);
return;
}
dhd_os_sdlock(&dhd->pub);
/* Call the bus module watchdog */
dhd_bus_watchdog(&dhd->pub);
/* Count the tick for reference */
dhd->pub.tickcnt++;
/* Reschedule the watchdog */
if (dhd->wd_timer_valid)
mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
dhd_os_sdunlock(&dhd->pub);
dhd_os_wake_unlock(&dhd->pub);
}
static int
dhd_dpc_thread(void *data)
{
dhd_info_t *dhd = (dhd_info_t *)data;
/* This thread doesn't need any user-level access,
* so get rid of all our resources
*/
#ifdef DHD_SCHED
if (dhd_dpc_prio > 0)
{
struct sched_param param;
param.sched_priority = (dhd_dpc_prio < MAX_RT_PRIO)?dhd_dpc_prio:(MAX_RT_PRIO-1);
setScheduler(current, SCHED_FIFO, &param);
}
#endif /* DHD_SCHED */
DAEMONIZE("dhd_dpc");
/* Run until signal received */
while (1) {
if (down_interruptible(&dhd->dpc_sem) == 0) {
/* Call bus dpc unless it indicated down (then clean stop) */
if (dhd->pub.busstate != DHD_BUS_DOWN) {
if (dhd_bus_dpc(dhd->pub.bus)) {
up(&dhd->dpc_sem);
}
else {
dhd_os_wake_unlock(&dhd->pub);
}
} else {
dhd_bus_stop(dhd->pub.bus, TRUE);
dhd_os_wake_unlock(&dhd->pub);
}
}
else
break;
}
complete_and_exit(&dhd->dpc_exited, 0);
}
static void
dhd_dpc(ulong data)
{
dhd_info_t *dhd;
dhd = (dhd_info_t *)data;
/* Call bus dpc unless it indicated down (then clean stop) */
if (dhd->pub.busstate != DHD_BUS_DOWN) {
if (dhd_bus_dpc(dhd->pub.bus))
tasklet_schedule(&dhd->tasklet);
} else {
dhd_bus_stop(dhd->pub.bus, TRUE);
}
}
void
dhd_sched_dpc(dhd_pub_t *dhdp)
{
dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
dhd_os_wake_lock(dhdp);
if (dhd->dpc_pid >= 0) {
up(&dhd->dpc_sem);
return;
}
tasklet_schedule(&dhd->tasklet);
}
#ifdef TOE
/* Retrieve current toe component enables, which are kept as a bitmap in toe_ol iovar */
static int
dhd_toe_get(dhd_info_t *dhd, int ifidx, uint32 *toe_ol)
{
wl_ioctl_t ioc;
char buf[32];
int ret;
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = WLC_GET_VAR;
ioc.buf = buf;
ioc.len = (uint)sizeof(buf);
ioc.set = FALSE;
strcpy(buf, "toe_ol");
if ((ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
/* Check for older dongle image that doesn't support toe_ol */
if (ret == -EIO) {
DHD_ERROR(("%s: toe not supported by device\n",
dhd_ifname(&dhd->pub, ifidx)));
return -EOPNOTSUPP;
}
DHD_INFO(("%s: could not get toe_ol: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret));
return ret;
}
memcpy(toe_ol, buf, sizeof(uint32));
return 0;
}
/* Set current toe component enables in toe_ol iovar, and set toe global enable iovar */
static int
dhd_toe_set(dhd_info_t *dhd, int ifidx, uint32 toe_ol)
{
wl_ioctl_t ioc;
char buf[32];
int toe, ret;
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = WLC_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(uint32));
if ((ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
dhd_ifname(&dhd->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(uint32));
if ((ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
DHD_ERROR(("%s: could not set toe: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret));
return ret;
}
return 0;
}
#endif /* TOE */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24)
static void dhd_ethtool_get_drvinfo(struct net_device *net,
struct ethtool_drvinfo *info)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
sprintf(info->driver, "wl");
sprintf(info->version, "%lu", dhd->pub.drv_version);
}
struct ethtool_ops dhd_ethtool_ops = {
.get_drvinfo = dhd_ethtool_get_drvinfo
};
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) */
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2)
static int
dhd_ethtool(dhd_info_t *dhd, void *uaddr)
{
struct ethtool_drvinfo info;
char drvname[sizeof(info.driver)];
uint32 cmd;
#ifdef TOE
struct ethtool_value edata;
uint32 toe_cmpnt, csum_dir;
int ret;
#endif
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
/* all ethtool calls start with a cmd word */
if (copy_from_user(&cmd, uaddr, sizeof (uint32)))
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 dhd requested, identify ourselves */
if (strcmp(drvname, "?dhd") == 0) {
sprintf(info.driver, "dhd");
strcpy(info.version, EPI_VERSION_STR);
}
/* otherwise, require dongle to be up */
else if (!dhd->pub.up) {
DHD_ERROR(("%s: dongle is not up\n", __FUNCTION__));
return -ENODEV;
}
/* finally, report dongle driver type */
else if (dhd->pub.iswl)
sprintf(info.driver, "wl");
else
sprintf(info.driver, "xx");
sprintf(info.version, "%lu", dhd->pub.drv_version);
if (copy_to_user(uaddr, &info, sizeof(info)))
return -EFAULT;
DHD_CTL(("%s: given %*s, returning %s\n", __FUNCTION__,
(int)sizeof(drvname), drvname, info.driver));
break;
#ifdef TOE
/* Get toe offload components from dongle */
case ETHTOOL_GRXCSUM:
case ETHTOOL_GTXCSUM:
if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 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 */
if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 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;
if ((ret = dhd_toe_set(dhd, 0, toe_cmpnt)) < 0)
return ret;
/* If setting TX checksum mode, tell Linux the new mode */
if (cmd == ETHTOOL_STXCSUM) {
if (edata.data)
dhd->iflist[0]->net->features |= NETIF_F_IP_CSUM;
else
dhd->iflist[0]->net->features &= ~NETIF_F_IP_CSUM;
}
break;
#endif /* TOE */
default:
return -EOPNOTSUPP;
}
return 0;
}
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) */
static int
dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
dhd_ioctl_t ioc;
int bcmerror = 0;
int buflen = 0;
void *buf = NULL;
uint driver = 0;
int ifidx;
bool is_set_key_cmd;
int ret;
dhd_os_wake_lock(&dhd->pub);
ifidx = dhd_net2idx(dhd, net);
DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __FUNCTION__, ifidx, cmd));
if (ifidx == DHD_BAD_IF) {
dhd_os_wake_unlock(&dhd->pub);
return -1;
}
#if defined(CONFIG_WIRELESS_EXT)
/* linux wireless extensions */
if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
/* may recurse, do NOT lock */
ret = wl_iw_ioctl(net, ifr, cmd);
dhd_os_wake_unlock(&dhd->pub);
return ret;
}
#endif /* defined(CONFIG_WIRELESS_EXT) */
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2)
if (cmd == SIOCETHTOOL) {
ret = dhd_ethtool(dhd, (void*)ifr->ifr_data);
dhd_os_wake_unlock(&dhd->pub);
return ret;
}
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) */
if (cmd != SIOCDEVPRIVATE) {
dhd_os_wake_unlock(&dhd->pub);
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(wl_ioctl_t))) {
bcmerror = -BCME_BADADDR;
goto done;
}
/* Copy out any buffer passed */
if (ioc.buf) {
buflen = MIN(ioc.len, DHD_IOCTL_MAXLEN);
/* optimization for direct ioctl calls from kernel */
/*
if (segment_eq(get_fs(), KERNEL_DS)) {
buf = ioc.buf;
} else {
*/
{
if (!(buf = (char*)MALLOC(dhd->pub.osh, buflen))) {
bcmerror = -BCME_NOMEM;
goto done;
}
if (copy_from_user(buf, ioc.buf, buflen)) {
bcmerror = -BCME_BADADDR;
goto done;
}
}
}
/* To differentiate between wl and dhd read 4 more byes */
if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
sizeof(uint)) != 0)) {
bcmerror = -BCME_BADADDR;
goto done;
}
if (!capable(CAP_NET_ADMIN)) {
bcmerror = -BCME_EPERM;
goto done;
}
/* check for local dhd ioctl and handle it */
if (driver == DHD_IOCTL_MAGIC) {
bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen);
if (bcmerror)
dhd->pub.bcmerror = bcmerror;
goto done;
}
/* send to dongle (must be up, and wl) */
if (dhd->pub.busstate != DHD_BUS_DATA) {
DHD_ERROR(("%s DONGLE_DOWN\n", __FUNCTION__));
bcmerror = BCME_DONGLE_DOWN;
goto done;
}
if (!dhd->pub.iswl) {
bcmerror = BCME_DONGLE_DOWN;
goto done;
}
/* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
* prevent M4 encryption.
*/
is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) ||
((ioc.cmd == WLC_SET_VAR) &&
!(strncmp("wsec_key", ioc.buf, 9))) ||
((ioc.cmd == WLC_SET_VAR) &&
!(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
if (is_set_key_cmd) {
dhd_wait_pend8021x(net);
}
bcmerror = dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen);
done:
if ((bcmerror == -ETIMEDOUT) || ((dhd->pub.busstate == DHD_BUS_DOWN) &&
(!dhd->pub.dongle_reset))) {
DHD_ERROR(("%s: Event HANG send up\n", __FUNCTION__));
net_os_send_hang_message(net);
}
if (!bcmerror && buf && ioc.buf) {
if (copy_to_user(ioc.buf, buf, buflen))
bcmerror = -EFAULT;
}
if (buf)
MFREE(dhd->pub.osh, buf, buflen);
dhd_os_wake_unlock(&dhd->pub);
return OSL_ERROR(bcmerror);
}
static int
dhd_stop(struct net_device *net)
{
#if !defined(IGNORE_ETH0_DOWN)
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
DHD_TRACE(("%s: Enter %s\n", __FUNCTION__, net->name));
if (dhd->pub.up == 0) {
return 0;
}
/* Set state and stop OS transmissions */
dhd->pub.up = 0;
netif_stop_queue(net);
#else
DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation ...\n", __FUNCTION__));
#endif /* !defined(IGNORE_ETH0_DOWN) */
OLD_MOD_DEC_USE_COUNT;
return 0;
}
static int
dhd_open(struct net_device *net)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
#ifdef TOE
uint32 toe_ol;
#endif
int ifidx;
/* Force start if ifconfig_up gets called before START command */
wl_control_wl_start(net);
ifidx = dhd_net2idx(dhd, net);
DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx));
if ((dhd->iflist[ifidx]) && (dhd->iflist[ifidx]->state == WLC_E_IF_DEL)) {
DHD_ERROR(("%s: Error: called when IF already deleted\n", __FUNCTION__));
return -1;
}
if (ifidx == 0) { /* do it only for primary eth0 */
atomic_set(&dhd->pend_8021x_cnt, 0);
memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
#ifdef TOE
/* Get current TOE mode from dongle */
if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0 && (toe_ol & TOE_TX_CSUM_OL) != 0)
dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
else
dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
#endif
}
/* Allow transmit calls */
netif_start_queue(net);
dhd->pub.up = 1;
OLD_MOD_INC_USE_COUNT;
return 0;
}
osl_t *
dhd_osl_attach(void *pdev, uint bustype)
{
return osl_attach(pdev, bustype, TRUE);
}
void
dhd_osl_detach(osl_t *osh)
{
if (MALLOCED(osh)) {
DHD_ERROR(("%s: MEMORY LEAK %d bytes\n", __FUNCTION__, MALLOCED(osh)));
}
osl_detach(osh);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && 1
up(&dhd_registration_sem);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
}
int
dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name,
uint8 *mac_addr, uint32 flags, uint8 bssidx)
{
dhd_if_t *ifp;
DHD_TRACE(("%s: idx %d, handle->%p\n", __FUNCTION__, ifidx, handle));
ASSERT(dhd && (ifidx < DHD_MAX_IFS));
ifp = dhd->iflist[ifidx];
if (!ifp && !(ifp = MALLOC(dhd->pub.osh, sizeof(dhd_if_t)))) {
DHD_ERROR(("%s: OOM - dhd_if_t\n", __FUNCTION__));
return -ENOMEM;
}
memset(ifp, 0, sizeof(dhd_if_t));
ifp->info = dhd;
dhd->iflist[ifidx] = ifp;
strncpy(ifp->name, name, IFNAMSIZ);
ifp->name[IFNAMSIZ] = '\0';
if (mac_addr != NULL)
memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN);
if (handle == NULL) {
ifp->state = WLC_E_IF_ADD;
ifp->idx = ifidx;
ASSERT(dhd->sysioc_pid >= 0);
up(&dhd->sysioc_sem);
} else
ifp->net = (struct net_device *)handle;
return 0;
}
void
dhd_del_if(dhd_info_t *dhd, int ifidx)
{
dhd_if_t *ifp;
DHD_TRACE(("%s: idx %d\n", __FUNCTION__, ifidx));
ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS));
ifp = dhd->iflist[ifidx];
if (!ifp) {
DHD_ERROR(("%s: Null interface\n", __FUNCTION__));
return;
}
ifp->state = WLC_E_IF_DEL;
ifp->idx = ifidx;
ASSERT(dhd->sysioc_pid >= 0);
up(&dhd->sysioc_sem);
}
dhd_pub_t *
dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen)
{
dhd_info_t *dhd = NULL;
struct net_device *net;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
/* updates firmware nvram path if it was provided as module paramters */
if ((firmware_path != NULL) && (firmware_path[0] != '\0'))
strcpy(fw_path, firmware_path);
if ((nvram_path != NULL) && (nvram_path[0] != '\0'))
strcpy(nv_path, nvram_path);
/* Allocate etherdev, including space for private structure */
if (!(net = alloc_etherdev(sizeof(dhd)))) {
DHD_ERROR(("%s: OOM - alloc_etherdev\n", __FUNCTION__));
goto fail;
}
/* Allocate primary dhd_info */
if (!(dhd = MALLOC(osh, sizeof(dhd_info_t)))) {
DHD_ERROR(("%s: OOM - alloc dhd_info\n", __FUNCTION__));
goto fail;
}
memset(dhd, 0, sizeof(dhd_info_t));
/*
* Save the dhd_info into the priv
*/
memcpy(netdev_priv(net), &dhd, sizeof(dhd));
dhd->pub.osh = osh;
/* 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 (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) == DHD_BAD_IF)
goto fail;
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 31))
net->open = NULL;
#else
net->netdev_ops = NULL;
#endif
init_MUTEX(&dhd->proto_sem);
/* Initialize other structure content */
init_waitqueue_head(&dhd->ioctl_resp_wait);
init_waitqueue_head(&dhd->ctrl_wait);
/* Initialize the spinlocks */
spin_lock_init(&dhd->sdlock);
spin_lock_init(&dhd->txqlock);
spin_lock_init(&dhd->dhd_lock);
/* Initialize Wakelock stuff */
spin_lock_init(&dhd->wl_lock);
dhd->wl_count = 0;
dhd->wl_packet = 0;
#ifdef CONFIG_HAS_WAKELOCK
wake_lock_init(&dhd->wl_wifi, WAKE_LOCK_SUSPEND, "wlan_wake");
wake_lock_init(&dhd->wl_rxwake, WAKE_LOCK_SUSPEND, "wlan_rx_wake");
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
mutex_init(&dhd->wl_start_lock);
#endif
/* Link to info module */
dhd->pub.info = dhd;
/* Link to bus module */
dhd->pub.bus = bus;
dhd->pub.hdrlen = bus_hdrlen;
/* Attach and link in the protocol */
if (dhd_prot_attach(&dhd->pub) != 0) {
DHD_ERROR(("dhd_prot_attach failed\n"));
goto fail;
}
#if defined(CONFIG_WIRELESS_EXT)
/* Attach and link in the iw */
if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
DHD_ERROR(("wl_iw_attach failed\n"));
goto fail;
}
#endif /* defined(CONFIG_WIRELESS_EXT) */
/* Set up the watchdog timer */
init_timer(&dhd->timer);
dhd->timer.data = (ulong)dhd;
dhd->timer.function = dhd_watchdog;
/* Initialize thread based operation and lock */
init_MUTEX(&dhd->sdsem);
if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)) {
dhd->threads_only = TRUE;
}
else {
dhd->threads_only = FALSE;
}
if (dhd_dpc_prio >= 0) {
/* Initialize watchdog thread */
sema_init(&dhd->watchdog_sem, 0);
init_completion(&dhd->watchdog_exited);
dhd->watchdog_pid = kernel_thread(dhd_watchdog_thread, dhd, 0);
} else {
dhd->watchdog_pid = -1;
}
/* Set up the bottom half handler */
if (dhd_dpc_prio >= 0) {
/* Initialize DPC thread */
sema_init(&dhd->dpc_sem, 0);
init_completion(&dhd->dpc_exited);
dhd->dpc_pid = kernel_thread(dhd_dpc_thread, dhd, 0);
} else {
tasklet_init(&dhd->tasklet, dhd_dpc, (ulong)dhd);
dhd->dpc_pid = -1;
}
if (dhd_sysioc) {
sema_init(&dhd->sysioc_sem, 0);
init_completion(&dhd->sysioc_exited);
dhd->sysioc_pid = kernel_thread(_dhd_sysioc_thread, dhd, 0);
} else {
dhd->sysioc_pid = -1;
}
/*
* Save the dhd_info into the priv
*/
memcpy(netdev_priv(net), &dhd, sizeof(dhd));
#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
g_bus = bus;
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP)
register_pm_notifier(&dhd_sleep_pm_notifier);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */
#ifdef CONFIG_HAS_EARLYSUSPEND
dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
dhd->early_suspend.suspend = dhd_early_suspend;
dhd->early_suspend.resume = dhd_late_resume;
register_early_suspend(&dhd->early_suspend);
#endif
register_inetaddr_notifier(&dhd_notifier);
return &dhd->pub;
fail:
if (net)
free_netdev(net);
if (dhd)
dhd_detach(&dhd->pub);
return NULL;
}
int
dhd_bus_start(dhd_pub_t *dhdp)
{
int ret = -1;
dhd_info_t *dhd = (dhd_info_t*)dhdp->info;
#ifdef EMBEDDED_PLATFORM
char iovbuf[WL_EVENTING_MASK_LEN + 12]; /* Room for "event_msgs" + '\0' + bitvec */
#endif /* EMBEDDED_PLATFORM */
ASSERT(dhd);
DHD_TRACE(("%s: \n", __FUNCTION__));
/* try to download image and nvram to the dongle */
if (dhd->pub.busstate == DHD_BUS_DOWN) {
if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
fw_path, nv_path))) {
DHD_ERROR(("%s: dhdsdio_probe_download failed. firmware = %s nvram = %s\n",
__FUNCTION__, fw_path, nv_path));
return -1;
}
}
/* Start the watchdog timer */
dhd->pub.tickcnt = 0;
dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
/* Bring up the bus */
if ((ret = dhd_bus_init(&dhd->pub, TRUE)) != 0) {
DHD_ERROR(("%s, dhd_bus_init failed %d\n", __FUNCTION__, ret));
return ret;
}
#if defined(OOB_INTR_ONLY)
/* Host registration for OOB interrupt */
if (bcmsdh_register_oob_intr(dhdp)) {
dhd->wd_timer_valid = FALSE;
del_timer_sync(&dhd->timer);
DHD_ERROR(("%s Host failed to resgister for OOB\n", __FUNCTION__));
return -ENODEV;
}
/* Enable oob at firmware */
dhd_enable_oob_intr(dhd->pub.bus, TRUE);
#endif /* defined(OOB_INTR_ONLY) */
/* If bus is not ready, can't come up */
if (dhd->pub.busstate != DHD_BUS_DATA) {
dhd->wd_timer_valid = FALSE;
del_timer_sync(&dhd->timer);
DHD_ERROR(("%s failed bus is not ready\n", __FUNCTION__));
return -ENODEV;
}
#ifdef EMBEDDED_PLATFORM
bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf, sizeof(iovbuf));
dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf));
bcopy(iovbuf, dhdp->eventmask, WL_EVENTING_MASK_LEN);
setbit(dhdp->eventmask, WLC_E_SET_SSID);
setbit(dhdp->eventmask, WLC_E_PRUNE);
setbit(dhdp->eventmask, WLC_E_AUTH);
setbit(dhdp->eventmask, WLC_E_REASSOC);
setbit(dhdp->eventmask, WLC_E_REASSOC_IND);
setbit(dhdp->eventmask, WLC_E_DEAUTH_IND);
setbit(dhdp->eventmask, WLC_E_DISASSOC_IND);
setbit(dhdp->eventmask, WLC_E_DISASSOC);
setbit(dhdp->eventmask, WLC_E_JOIN);
setbit(dhdp->eventmask, WLC_E_ASSOC_IND);
setbit(dhdp->eventmask, WLC_E_PSK_SUP);
setbit(dhdp->eventmask, WLC_E_LINK);
setbit(dhdp->eventmask, WLC_E_NDIS_LINK);
setbit(dhdp->eventmask, WLC_E_MIC_ERROR);
setbit(dhdp->eventmask, WLC_E_PMKID_CACHE);
setbit(dhdp->eventmask, WLC_E_TXFAIL);
setbit(dhdp->eventmask, WLC_E_JOIN_START);
setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE);
setbit(dhdp->eventmask, WLC_E_RELOAD);
#ifdef PNO_SUPPORT
setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND);
#endif /* PNO_SUPPORT */
/* enable dongle roaming event */
setbit(dhdp->eventmask, WLC_E_ROAM);
dhdp->pktfilter_count = 1;
/* Setup filter to allow only unicast */
dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
#endif /* EMBEDDED_PLATFORM */
/* Bus is ready, do any protocol initialization */
if ((ret = dhd_prot_init(&dhd->pub)) < 0)
return ret;
return 0;
}
int
dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len, int set)
{
char buf[strlen(name) + 1 + cmd_len];
int len = sizeof(buf);
wl_ioctl_t ioc;
int ret;
len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = set? WLC_SET_VAR : WLC_GET_VAR;
ioc.buf = buf;
ioc.len = len;
ioc.set = set;
ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
if (!set && ret >= 0)
memcpy(cmd_buf, buf, cmd_len);
return ret;
}
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 31))
static struct net_device_ops dhd_ops_pri = {
.ndo_open = dhd_open,
.ndo_stop = dhd_stop,
.ndo_get_stats = dhd_get_stats,
.ndo_do_ioctl = dhd_ioctl_entry,
.ndo_start_xmit = dhd_start_xmit,
.ndo_set_mac_address = dhd_set_mac_address,
.ndo_set_multicast_list = dhd_set_multicast_list,
};
static struct net_device_ops dhd_ops_virt = {
.ndo_get_stats = dhd_get_stats,
.ndo_do_ioctl = dhd_ioctl_entry,
.ndo_start_xmit = dhd_start_xmit,
.ndo_set_mac_address = dhd_set_mac_address,
.ndo_set_multicast_list = dhd_set_multicast_list,
};
#endif
static int dhd_device_event(struct notifier_block *this, unsigned long event,
void *ptr)
{
struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
dhd_info_t *dhd;
dhd_pub_t *dhd_pub;
if (!ifa)
return NOTIFY_DONE;
dhd = *(dhd_info_t **)netdev_priv(ifa->ifa_dev->dev);
dhd_pub = &dhd->pub;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 31))
if (ifa->ifa_dev->dev->netdev_ops == &dhd_ops_pri) {
#else
if (ifa->ifa_dev->dev->open == &dhd_open) {
#endif
switch (event) {
case NETDEV_UP:
DHD_TRACE(("%s: [%s] Up IP: 0x%x\n",
__FUNCTION__, ifa->ifa_label, ifa->ifa_address));
dhd_arp_cleanup(dhd_pub);
break;
case NETDEV_DOWN:
DHD_TRACE(("%s: [%s] Down IP: 0x%x\n",
__FUNCTION__, ifa->ifa_label, ifa->ifa_address));
dhd_arp_cleanup(dhd_pub);
break;
default:
DHD_TRACE(("%s: [%s] Event: %lu\n",
__FUNCTION__, ifa->ifa_label, event));
break;
}
}
return NOTIFY_DONE;
}
int
dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
{
dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
struct net_device *net;
uint8 temp_addr[ETHER_ADDR_LEN] = { 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33 };
DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx));
ASSERT(dhd && dhd->iflist[ifidx]);
net = dhd->iflist[ifidx]->net;
ASSERT(net);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 31))
ASSERT(!net->open);
net->get_stats = dhd_get_stats;
net->do_ioctl = dhd_ioctl_entry;
net->hard_start_xmit = dhd_start_xmit;
net->set_mac_address = dhd_set_mac_address;
net->set_multicast_list = dhd_set_multicast_list;
net->open = net->stop = NULL;
#else
ASSERT(!net->netdev_ops);
net->netdev_ops = &dhd_ops_virt;
#endif
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 31))
net->open = dhd_open;
net->stop = dhd_stop;
#else
net->netdev_ops = &dhd_ops_pri;
#endif
/*
* We have to use the primary MAC for virtual interfaces
*/
if (ifidx != 0) {
/* for virtual interfaces use the primary MAC */
memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
}
if (ifidx == 1) {
DHD_TRACE(("%s ACCESS POINT MAC: \n", __FUNCTION__));
/* ACCESSPOINT INTERFACE CASE */
temp_addr[0] |= 0x02; /* set bit 2 , - Locally Administered address */
}
net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24)
net->ethtool_ops = &dhd_ethtool_ops;
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) */
#if defined(CONFIG_WIRELESS_EXT)
#if WIRELESS_EXT < 19
net->get_wireless_stats = dhd_get_wireless_stats;
#endif /* WIRELESS_EXT < 19 */
#if WIRELESS_EXT > 12
net->wireless_handlers = (struct iw_handler_def *)&wl_iw_handler_def;
#endif /* WIRELESS_EXT > 12 */
#endif /* defined(CONFIG_WIRELESS_EXT) */
dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen;
memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);
if (register_netdev(net) != 0) {
DHD_ERROR(("%s: couldn't register the net device\n", __FUNCTION__));
goto fail;
}
printf("%s: Broadcom Dongle Host Driver mac=%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", net->name,
dhd->pub.mac.octet[0], dhd->pub.mac.octet[1], dhd->pub.mac.octet[2],
dhd->pub.mac.octet[3], dhd->pub.mac.octet[4], dhd->pub.mac.octet[5]);
#if defined(CONFIG_WIRELESS_EXT)
#if defined(CONFIG_FIRST_SCAN)
#ifdef SOFTAP
if (ifidx == 0)
/* Don't call for SOFTAP Interface in SOFTAP MODE */
wl_iw_iscan_set_scan_broadcast_prep(net, 1);
#else
wl_iw_iscan_set_scan_broadcast_prep(net, 1);
#endif /* SOFTAP */
#endif /* CONFIG_FIRST_SCAN */
#endif /* CONFIG_WIRELESS_EXT */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
up(&dhd_registration_sem);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
return 0;
fail:
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 31))
net->open = NULL;
#else
net->netdev_ops = NULL;
#endif
return BCME_ERROR;
}
void
dhd_bus_detach(dhd_pub_t *dhdp)
{
dhd_info_t *dhd;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
if (dhdp) {
dhd = (dhd_info_t *)dhdp->info;
if (dhd) {
/* Stop the protocol module */
dhd_prot_stop(&dhd->pub);
/* Stop the bus module */
dhd_bus_stop(dhd->pub.bus, TRUE);
#if defined(OOB_INTR_ONLY)
bcmsdh_unregister_oob_intr();
#endif /* defined(OOB_INTR_ONLY) */
/* Clear the watchdog timer */
dhd->wd_timer_valid = FALSE;
del_timer_sync(&dhd->timer);
}
}
}
void
dhd_detach(dhd_pub_t *dhdp)
{
dhd_info_t *dhd;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
if (dhdp) {
dhd = (dhd_info_t *)dhdp->info;
if (dhd) {
dhd_if_t *ifp;
int i;
unregister_inetaddr_notifier(&dhd_notifier);
#if defined(CONFIG_HAS_EARLYSUSPEND)
if (dhd->early_suspend.suspend)
unregister_early_suspend(&dhd->early_suspend);
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
#if defined(CONFIG_WIRELESS_EXT)
/* Attach and link in the iw */
wl_iw_detach();
#endif
if (dhd->sysioc_pid >= 0) {
KILL_PROC(dhd->sysioc_pid, SIGTERM);
wait_for_completion(&dhd->sysioc_exited);
}
for (i = 1; i < DHD_MAX_IFS; i++)
if (dhd->iflist[i]) {
dhd->iflist[i]->state = WLC_E_IF_DEL;
dhd->iflist[i]->idx = i;
dhd_op_if(dhd->iflist[i]);
}
ifp = dhd->iflist[0];
ASSERT(ifp);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 31))
if (ifp->net->open) {
#else
if (ifp->net->netdev_ops == &dhd_ops_pri) {
#endif
dhd_stop(ifp->net);
unregister_netdev(ifp->net);
}
if (dhd->watchdog_pid >= 0)
{
KILL_PROC(dhd->watchdog_pid, SIGTERM);
wait_for_completion(&dhd->watchdog_exited);
}
if (dhd->dpc_pid >= 0)
{
KILL_PROC(dhd->dpc_pid, SIGTERM);
wait_for_completion(&dhd->dpc_exited);
}
else
tasklet_kill(&dhd->tasklet);
dhd_bus_detach(dhdp);
if (dhdp->prot)
dhd_prot_detach(dhdp);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP)
unregister_pm_notifier(&dhd_sleep_pm_notifier);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */
free_netdev(ifp->net);
#ifdef CONFIG_HAS_WAKELOCK
wake_lock_destroy(&dhd->wl_wifi);
wake_lock_destroy(&dhd->wl_rxwake);
#endif
MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
MFREE(dhd->pub.osh, dhd, sizeof(*dhd));
}
}
}
static void __exit
dhd_module_cleanup(void)
{
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
dhd_bus_unregister();
#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
wifi_del_dev();
#endif
/* Call customer gpio to turn off power with WL_REG_ON signal */
dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
}
static int __init
dhd_module_init(void)
{
int error;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
/* Sanity check on the module parameters */
do {
/* Both watchdog and DPC as tasklets are ok */
if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0))
break;
/* If both watchdog and DPC are threads, TX must be deferred */
if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0) && dhd_deferred_tx)
break;
DHD_ERROR(("Invalid module parameters.\n"));
return -EINVAL;
} while (0);
/* Call customer gpio to turn on power with WL_REG_ON signal */
dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
sema_init(&wifi_control_sem, 0);
error = wifi_add_dev();
if (error) {
DHD_ERROR(("%s: platform_driver_register failed\n", __FUNCTION__));
goto fail_0;
}
/* Waiting callback after platform_driver_register is done or exit with error */
if (down_timeout(&wifi_control_sem, msecs_to_jiffies(5000)) != 0) {
error = -EINVAL;
DHD_ERROR(("%s: platform_driver_register timeout\n", __FUNCTION__));
goto fail_1;
}
#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
sema_init(&dhd_registration_sem, 0);
#endif
error = dhd_bus_register();
if (!error)
printf("\n%s\n", dhd_version);
else {
DHD_ERROR(("%s: sdio_register_driver failed\n", __FUNCTION__));
goto fail_1;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
/*
* Wait till MMC sdio_register_driver callback called and made driver attach.
* It's needed to make sync up exit from dhd insmod and
* Kernel MMC sdio device callback registration
*/
if (down_timeout(&dhd_registration_sem, msecs_to_jiffies(DHD_REGISTRATION_TIMEOUT)) != 0) {
error = -EINVAL;
DHD_ERROR(("%s: sdio_register_driver timeout\n", __FUNCTION__));
goto fail_2;
}
#endif
return error;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
fail_2:
dhd_bus_unregister();
#endif
fail_1:
#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
wifi_del_dev();
fail_0:
#endif /* defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
/* Call customer gpio to turn off power with WL_REG_ON signal */
dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
return error;
}
module_init(dhd_module_init);
module_exit(dhd_module_cleanup);
/*
* OS specific functions required to implement DHD driver in OS independent way
*/
int
dhd_os_proto_block(dhd_pub_t *pub)
{
dhd_info_t *dhd = (dhd_info_t *)(pub->info);
if (dhd) {
down(&dhd->proto_sem);
return 1;
}
return 0;
}
int
dhd_os_proto_unblock(dhd_pub_t *pub)
{
dhd_info_t *dhd = (dhd_info_t *)(pub->info);
if (dhd) {
up(&dhd->proto_sem);
return 1;
}
return 0;
}
unsigned int
dhd_os_get_ioctl_resp_timeout(void)
{
return ((unsigned int)dhd_ioctl_timeout_msec);
}
void
dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
{
dhd_ioctl_timeout_msec = (int)timeout_msec;
}
int
dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending)
{
dhd_info_t *dhd = (dhd_info_t *)(pub->info);
DECLARE_WAITQUEUE(wait, current);
int timeout = dhd_ioctl_timeout_msec;
/* Convert timeout in millsecond to jiffies */
/* timeout = timeout * HZ / 1000; */
timeout = msecs_to_jiffies(timeout);
/* Wait until control frame is available */
add_wait_queue(&dhd->ioctl_resp_wait, &wait);
set_current_state(TASK_INTERRUPTIBLE);
smp_mb();
while (!(*condition) && (!signal_pending(current) && timeout)) {
timeout = schedule_timeout(timeout);
smp_mb();
}
if (signal_pending(current))
*pending = TRUE;
set_current_state(TASK_RUNNING);
remove_wait_queue(&dhd->ioctl_resp_wait, &wait);
return timeout;
}
int
dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
{
dhd_info_t *dhd = (dhd_info_t *)(pub->info);
if (waitqueue_active(&dhd->ioctl_resp_wait)) {
wake_up_interruptible(&dhd->ioctl_resp_wait);
}
return 0;
}
void
dhd_os_wd_timer(void *bus, uint wdtick)
{
dhd_pub_t *pub = bus;
dhd_info_t *dhd = (dhd_info_t *)pub->info;
unsigned long flags;
int del_timer_flag = FALSE;
flags = dhd_os_spin_lock(pub);
/* don't start the wd until fw is loaded */
if (pub->busstate != DHD_BUS_DOWN) {
if (wdtick) {
dhd_watchdog_ms = (uint)wdtick;
dhd->wd_timer_valid = TRUE;
/* Re arm the timer, at last watchdog period */
mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
} else if (dhd->wd_timer_valid == TRUE) {
/* Totally stop the timer */
dhd->wd_timer_valid = FALSE;
del_timer_flag = TRUE;
}
}
dhd_os_spin_unlock(pub, flags);
if (del_timer_flag) {
del_timer_sync(&dhd->timer);
}
}
void *
dhd_os_open_image(char *filename)
{
struct file *fp;