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gerrit-public.fairphone.software / kernel / msm / b7a82d40f1d9dc7a69281fc3b2a42a489f2a1619 / . / drivers / net / wireless / bcmdhd / dhd_linux.c
blob: 0651c256e3c937e75d75f919071278a6a235c977 [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) 1999-2011, 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 1.131.2.55 2011-02-09 05:31:56 Exp $
*/
#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/inetdevice.h>
#include <linux/rtnetlink.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 <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>
#ifdef CONFIG_HAS_WAKELOCK
#include <linux/wakelock.h>
#endif
#ifdef WL_CFG80211
#include <wl_cfg80211.h>
#endif
#include <proto/802.11_bta.h>
#include <proto/bt_amp_hci.h>
#include <dhd_bta.h>
#ifdef WLMEDIA_HTSF
#include <linux/time.h>
#include <htsf.h>
#define HTSF_MINLEN 200 /* min. packet length to timestamp */
#define HTSF_BUS_DELAY 150 /* assume a fix propagation in us */
#define TSMAX 1000 /* max no. of timing record kept */
#define NUMBIN 34
static uint32 tsidx = 0;
static uint32 htsf_seqnum = 0;
uint32 tsfsync;
struct timeval tsync;
static uint32 tsport = 5010;
typedef struct histo_ {
uint32 bin[NUMBIN];
} histo_t;
static histo_t vi_d1, vi_d2, vi_d3, vi_d4;
#endif /* WLMEDIA_HTSF */
#if defined(SOFTAP)
extern bool ap_cfg_running;
extern bool ap_fw_loaded;
#endif
/* enable HOSTIP cache update from the host side when an eth0:N is up */
#define AOE_IP_ALIAS_SUPPORT 1
#ifdef PROP_TXSTATUS
#include <wlfc_proto.h>
#include <dhd_wlfc.h>
#endif
#include <wl_android.h>
#ifdef ARP_OFFLOAD_SUPPORT
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
};
#endif /* ARP_OFFLOAD_SUPPORT */
#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 */
#include <dhd_bus.h>
#define DBUS_RX_BUFFER_SIZE_DHD(net) (net->mtu + net->hard_header_len + dhd->pub.hdrlen)
#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>
extern wl_iw_extra_params_t g_wl_iw_params;
#endif /* defined(CONFIG_WIRELESS_EXT) */
#if defined(CONFIG_HAS_EARLYSUSPEND)
#include <linux/earlysuspend.h>
extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len);
extern int dhd_get_dtim_skip(dhd_pub_t *dhd);
#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 */
uint8 bssidx; /* bsscfg index for the interface */
} dhd_if_t;
#ifdef WLMEDIA_HTSF
typedef struct {
uint32 low;
uint32 high;
} tsf_t;
typedef struct {
uint32 last_cycle;
uint32 last_sec;
uint32 last_tsf;
uint32 coef; /* scaling factor */
uint32 coefdec1; /* first decimal */
uint32 coefdec2; /* second decimal */
} htsf_t;
typedef struct {
uint32 t1;
uint32 t2;
uint32 t3;
uint32 t4;
} tstamp_t;
static tstamp_t ts[TSMAX];
static tstamp_t maxdelayts;
static uint32 maxdelay = 0, tspktcnt = 0, maxdelaypktno = 0;
#endif /* WLMEDIA_HTSF */
/* 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;
/* For supporting multiple interfaces */
dhd_if_t *iflist[DHD_MAX_IFS];
struct semaphore proto_sem;
#ifdef PROP_TXSTATUS
spinlock_t wlfc_spinlock;
#endif
#ifdef WLMEDIA_HTSF
htsf_t htsf;
#endif
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;
#ifdef DHDTHREAD
/* Thread based operation */
bool threads_only;
struct semaphore sdsem;
tsk_ctl_t thr_dpc_ctl;
tsk_ctl_t thr_wdt_ctl;
#else
bool dhd_tasklet_create;
#endif /* DHDTHREAD */
tsk_ctl_t thr_sysioc_ctl;
/* Wakelocks */
#if defined(CONFIG_HAS_WAKELOCK) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
struct wake_lock wl_wifi; /* Wifi wakelock */
struct wake_lock wl_rxwake; /* Wifi rx wakelock */
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
/* net_device interface lock, prevent race conditions among net_dev interface
* calls and wifi_on or wifi_off
*/
struct mutex dhd_net_if_mutex;
#endif
spinlock_t wakelock_spinlock;
int wakelock_counter;
int wakelock_timeout_enable;
int hang_was_sent;
/* Thread to issue ioctl for multicast */
bool set_multicast;
bool set_macaddress;
struct ether_addr macvalue;
wait_queue_head_t ctrl_wait;
atomic_t pend_8021x_cnt;
dhd_attach_states_t dhd_state;
#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];
extern int wl_control_wl_start(struct net_device *dev);
extern int net_os_send_hang_message(struct net_device *dev);
#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)) */
/* Spawn a thread for system ioctls (set mac, set mcast) */
uint dhd_sysioc = TRUE;
module_param(dhd_sysioc, uint, 0);
/* Error bits */
module_param(dhd_msg_level, int, 0);
/* load firmware and/or nvram values from the filesystem */
module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0660);
module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0);
/* Watchdog interval */
uint dhd_watchdog_ms = 10;
module_param(dhd_watchdog_ms, uint, 0);
#if defined(DHD_DEBUG)
/* Console poll interval */
uint dhd_console_ms = 0;
module_param(dhd_console_ms, uint, 0);
#endif /* defined(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);
#ifdef DHDTHREAD
/* 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);
#endif /* DHDTHREAD */
/* Control fw roaming */
uint dhd_roam_disable = 0;
/* 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 BCMDBGFS
extern void dhd_dbg_init(dhd_pub_t *dhdp);
extern void dhd_dbg_remove(void);
#endif /* BCMDBGFS */
#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 /* SDTEST */
/* Version string to report */
#ifdef DHD_DEBUG
#ifndef SRCBASE
#define SRCBASE "drivers/net/wireless/bcmdhd"
#endif
#define DHD_COMPILED "\nCompiled in " SRCBASE
#else
#define DHD_COMPILED
#endif /* DHD_DEBUG */
static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR
#ifdef DHD_DEBUG
"\nCompiled in " SRCBASE " on " __DATE__ " at " __TIME__
#endif
;
static void dhd_net_if_lock_local(dhd_info_t *dhd);
static void dhd_net_if_unlock_local(dhd_info_t *dhd);
#ifdef WLMEDIA_HTSF
void htsf_update(dhd_info_t *dhd, void *data);
tsf_t prev_tsf, cur_tsf;
uint32 dhd_get_htsf(dhd_info_t *dhd, int ifidx);
static int dhd_ioctl_htsf_get(dhd_info_t *dhd, int ifidx);
static void dhd_dump_latency(void);
static void dhd_htsf_addtxts(dhd_pub_t *dhdp, void *pktbuf);
static void dhd_htsf_addrxts(dhd_pub_t *dhdp, void *pktbuf);
static void dhd_dump_htsfhisto(histo_t *his, char *s);
#endif /* WLMEDIA_HTSF */
extern s32 wl_cfg80211_ifdel_ops(struct net_device *net);
/* Monitor interface */
extern int dhd_monitor_init(void *dhd_pub);
extern int dhd_monitor_uninit(void);
#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) && 1
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) */
/* && defined(DHD_GPL) */
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;
uint roamvar = 1;
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_ERROR(("%s: force extra Suspend setting \n", __FUNCTION__));
dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode,
sizeof(power_mode), TRUE, 0);
/* Enable packet filter, only allow unicast packet to send up */
dhd_set_packet_filter(1, dhd);
/* If DTIM skip is set up as default, force it to wake
* each third DTIM for better power savings. Note that
* one side effect is a 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));
dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
/* Disable firmware roaming during suspend */
bcm_mkiovar("roam_off", (char *)&roamvar, 4,
iovbuf, sizeof(iovbuf));
dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
} else {
/* Kernel resumed */
DHD_TRACE(("%s: Remove extra suspend setting \n", __FUNCTION__));
power_mode = PM_FAST;
dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode,
sizeof(power_mode), TRUE, 0);
/* 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));
dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
roamvar = dhd_roam_disable;
bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf,
sizeof(iovbuf));
dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
}
}
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);
/* Set flag when early suspend was called */
dhdp->in_suspend = val;
if (!dhdp->suspend_disable_flag)
dhd_set_suspend(val, 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;
}
struct net_device * dhd_idx2net(struct dhd_pub *dhd_pub, int ifidx)
{
struct dhd_info *dhd_info;
if (!dhd_pub || ifidx < 0 || ifidx >= DHD_MAX_IFS)
return NULL;
dhd_info = dhd_pub->info;
if (dhd_info && dhd_info->iflist[ifidx])
return dhd_info->iflist[ifidx]->net;
return NULL;
}
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>";
}
uint8 *
dhd_bssidx2bssid(dhd_pub_t *dhdp, int idx)
{
int i;
dhd_info_t *dhd = (dhd_info_t *)dhdp;
ASSERT(dhd);
for (i = 0; i < DHD_MAX_IFS; i++)
if (dhd->iflist[i] && dhd->iflist[i]->bssidx == idx)
return dhd->iflist[i]->mac_addr;
return NULL;
}
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;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
netif_addr_lock_bh(dev);
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
cnt = netdev_mc_count(dev);
#else
cnt = dev->mc_count;
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
netif_addr_unlock_bh(dev);
#endif
/* 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);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
netif_addr_lock_bh(dev);
#endif
#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
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
netif_addr_unlock_bh(dev);
#endif
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = WLC_SET_VAR;
ioc.buf = buf;
ioc.len = buflen;
ioc.set = TRUE;
ret = dhd_wl_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_wl_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_wl_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;
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_wl_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;
extern tsk_ctl_t ap_eth_ctl; /* ap netdev heper thread ctl */
#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));
#ifdef WL_CFG80211
if (wl_cfg80211_is_progress_ifchange())
return;
#endif
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) {
strncpy(ifp->net->name, ifp->name, IFNAMSIZ);
ifp->net->name[IFNAMSIZ - 1] = '\0';
memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd));
#ifdef WL_CFG80211
if (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211)
if (!wl_cfg80211_notify_ifadd(ifp->net, ifp->idx, dhd_net_attach)) {
ifp->state = 0;
return;
}
#endif
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 {
#if defined(SOFTAP)
if (ap_fw_loaded && !(dhd->dhd_state & DHD_ATTACH_STATE_CFG80211)) {
/* semaphore that the soft AP CODE waits on */
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_ctl.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__));
#ifdef WL_CFG80211
wl_cfg80211_ifdel_ops(ifp->net);
#endif
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 WL_CFG80211
if (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211)
wl_cfg80211_notify_ifdel(ifp->net);
#endif
#ifdef SOFTAP
flags = dhd_os_spin_lock(&dhd->pub);
if (ifp->net == ap_net_dev)
ap_net_dev = NULL; /* NULL SOFTAP global wl0.1 as well */
dhd_os_spin_unlock(&dhd->pub, flags);
#endif /* SOFTAP */
}
}
static int
_dhd_sysioc_thread(void *data)
{
tsk_ctl_t *tsk = (tsk_ctl_t *)data;
dhd_info_t *dhd = (dhd_info_t *)tsk->parent;
int i;
#ifdef SOFTAP
bool in_ap = FALSE;
unsigned long flags;
#endif
DAEMONIZE("dhd_sysioc");
complete(&tsk->completed);
while (down_interruptible(&tsk->sema) == 0) {
SMP_RD_BARRIER_DEPENDS();
if (tsk->terminated) {
break;
}
dhd_net_if_lock_local(dhd);
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(("\n\n %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_net_if_unlock_local(dhd);
}
DHD_TRACE(("%s: stopped\n", __FUNCTION__));
complete_and_exit(&tsk->completed, 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;
ifidx = dhd_net2idx(dhd, dev);
if (ifidx == DHD_BAD_IF)
return -1;
ASSERT(&dhd->thr_sysioc_ctl.thr_pid >= 0);
memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN);
dhd->set_macaddress = TRUE;
up(&dhd->thr_sysioc_ctl.sema);
return ret;
}
static void
dhd_set_multicast_list(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
int ifidx;
ifidx = dhd_net2idx(dhd, dev);
if (ifidx == DHD_BAD_IF)
return;
ASSERT(&dhd->thr_sysioc_ctl.thr_pid >= 0);
dhd->set_multicast = TRUE;
up(&dhd->thr_sysioc_ctl.sema);
}
#ifdef PROP_TXSTATUS
int
dhd_os_wlfc_block(dhd_pub_t *pub)
{
dhd_info_t *di = (dhd_info_t *)(pub->info);
ASSERT(di != NULL);
spin_lock_bh(&di->wlfc_spinlock);
return 1;
}
int
dhd_os_wlfc_unblock(dhd_pub_t *pub)
{
dhd_info_t *di = (dhd_info_t *)(pub->info);
ASSERT(di != NULL);
spin_unlock_bh(&di->wlfc_spinlock);
return 1;
}
const uint8 wme_fifo2ac[] = { 0, 1, 2, 3, 1, 1 };
uint8 prio2fifo[8] = { 1, 0, 0, 1, 2, 2, 3, 3 };
#define WME_PRIO2AC(prio) wme_fifo2ac[prio2fifo[(prio)]]
#endif /* PROP_TXSTATUS */
int
dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
{
int ret;
dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
struct ether_header *eh = NULL;
/* Reject if down */
if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN)) {
/* free the packet here since the caller won't */
PKTFREE(dhdp->osh, pktbuf, TRUE);
return -ENODEV;
}
/* Update multicast statistic */
if (PKTLEN(dhdp->osh, pktbuf) >= ETHER_ADDR_LEN) {
uint8 *pktdata = (uint8 *)PKTDATA(dhdp->osh, pktbuf);
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);
#ifdef PROP_TXSTATUS
if (dhdp->wlfc_state) {
/* store the interface ID */
DHD_PKTTAG_SETIF(PKTTAG(pktbuf), ifidx);
/* store destination MAC in the tag as well */
DHD_PKTTAG_SETDSTN(PKTTAG(pktbuf), eh->ether_dhost);
/* decide which FIFO this packet belongs to */
if (ETHER_ISMULTI(eh->ether_dhost))
/* one additional queue index (highest AC + 1) is used for bc/mc queue */
DHD_PKTTAG_SETFIFO(PKTTAG(pktbuf), AC_COUNT);
else
DHD_PKTTAG_SETFIFO(PKTTAG(pktbuf), WME_PRIO2AC(PKTPRIO(pktbuf)));
} else
#endif /* PROP_TXSTATUS */
/* If the protocol uses a data header, apply it */
dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
/* Use bus module to send data frame */
#ifdef WLMEDIA_HTSF
dhd_htsf_addtxts(dhdp, pktbuf);
#endif
#ifdef PROP_TXSTATUS
if (dhdp->wlfc_state && ((athost_wl_status_info_t*)dhdp->wlfc_state)->proptxstatus_mode
!= WLFC_FCMODE_NONE) {
dhd_os_wlfc_block(dhdp);
ret = dhd_wlfc_enque_sendq(dhdp->wlfc_state, DHD_PKTTAG_FIFO(PKTTAG(pktbuf)),
pktbuf);
dhd_wlfc_commit_packets(dhdp->wlfc_state, (f_commitpkt_t)dhd_bus_txdata,
dhdp->bus);
if (((athost_wl_status_info_t*)dhdp->wlfc_state)->toggle_host_if) {
((athost_wl_status_info_t*)dhdp->wlfc_state)->toggle_host_if = 0;
}
dhd_os_wlfc_unblock(dhdp);
}
else
/* non-proptxstatus way */
ret = dhd_bus_txdata(dhdp->bus, pktbuf);
#else
ret = dhd_bus_txdata(dhdp->bus, pktbuf);
#endif /* PROP_TXSTATUS */
return ret;
}
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;
#ifdef WLMEDIA_HTSF
uint8 htsfdlystat_sz = dhd->pub.htsfdlystat_sz;
#else
uint8 htsfdlystat_sz = 0;
#endif
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 sent 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 + htsfdlystat_sz) {
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 + htsfdlystat_sz);
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;
}
#ifdef WLMEDIA_HTSF
if (htsfdlystat_sz && PKTLEN(dhd->pub.osh, pktbuf) >= ETHER_ADDR_LEN) {
uint8 *pktdata = (uint8 *)PKTDATA(dhd->pub.osh, pktbuf);
struct ether_header *eh = (struct ether_header *)pktdata;
if (!ETHER_ISMULTI(eh->ether_dhost) &&
(ntoh16(eh->ether_type) == ETHER_TYPE_IP)) {
eh->ether_type = hton16(ETHER_TYPE_BRCM_PKTDLYSTATS);
}
}
#endif
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;
int i;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
dhdp->txoff = state;
ASSERT(dhd);
if (ifidx == ALL_INTERFACES) {
/* Flow control on all active interfaces */
for (i = 0; i < DHD_MAX_IFS; i++) {
if (dhd->iflist[i]) {
net = dhd->iflist[i]->net;
if (state == ON)
netif_stop_queue(net);
else
netif_wake_queue(net);
}
}
}
else {
if (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, uint8 chan)
{
dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
struct sk_buff *skb;
uchar *eth;
uint len;
void *data, *pnext = NULL, *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) {
struct ether_header *eh;
struct dot11_llc_snap_header *lsh;
ifp = dhd->iflist[ifidx];
/* Dropping packets before registering net device to avoid kernel panic */
if (!ifp->net || ifp->net->reg_state != NETREG_REGISTERED) {
DHD_ERROR(("%s: net device is NOT registered yet. drop packet\n",
__FUNCTION__));
PKTFREE(dhdp->osh, pktbuf, TRUE);
continue;
}
pnext = PKTNEXT(dhdp->osh, pktbuf);
PKTSETNEXT(wl->sh.osh, pktbuf, NULL);
eh = (struct ether_header *)PKTDATA(wl->sh.osh, pktbuf);
lsh = (struct dot11_llc_snap_header *)&eh[1];
if ((ntoh16(eh->ether_type) < ETHER_TYPE_MIN) &&
(PKTLEN(wl->sh.osh, pktbuf) >= RFC1042_HDR_LEN) &&
bcmp(lsh, BT_SIG_SNAP_MPROT, DOT11_LLC_SNAP_HDR_LEN - 2) == 0 &&
lsh->type == HTON16(BTA_PROT_L2CAP)) {
amp_hci_ACL_data_t *ACL_data = (amp_hci_ACL_data_t *)
((uint8 *)eh + RFC1042_HDR_LEN);
ACL_data = NULL;
}
#ifdef PROP_TXSTATUS
if (dhdp->wlfc_state && PKTLEN(wl->sh.osh, pktbuf) == 0) {
/* WLFC may send header only packet when
there is an urgent message but no packet to
piggy-back on
*/
((athost_wl_status_info_t*)dhdp->wlfc_state)->stats.wlfc_header_only_pkt++;
PKTFREE(dhdp->osh, pktbuf, TRUE);
continue;
}
#endif
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;
#ifdef WLMEDIA_HTSF
dhd_htsf_addrxts(dhdp, pktbuf);
#endif
/* 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, 22)
skb->mac_header,
#else
skb->mac.raw,
#endif
&event,
&data);
wl_event_to_host_order(&event);
if (event.event_type == WLC_E_BTA_HCI_EVENT) {
dhd_bta_doevt(dhdp, data, event.datalen);
}
}
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;
uint len;
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);
/* Crack open the packet and check to see if it is BT HCI ACL data packet.
* If yes generate packet completion event.
*/
len = PKTLEN(dhdp->osh, txp);
/* Generate ACL data tx completion event locally to avoid SDIO bus transaction */
if ((type < ETHER_TYPE_MIN) && (len >= RFC1042_HDR_LEN)) {
struct dot11_llc_snap_header *lsh = (struct dot11_llc_snap_header *)&eh[1];
if (bcmp(lsh, BT_SIG_SNAP_MPROT, DOT11_LLC_SNAP_HDR_LEN - 2) == 0 &&
ntoh16(lsh->type) == BTA_PROT_L2CAP) {
dhd_bta_tx_hcidata_complete(dhdp, txp, success);
}
}
}
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;
}
#ifdef DHDTHREAD
static int
dhd_watchdog_thread(void *data)
{
tsk_ctl_t *tsk = (tsk_ctl_t *)data;
dhd_info_t *dhd = (dhd_info_t *)tsk->parent;
/* 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 */
complete(&tsk->completed);
while (1)
if (down_interruptible (&tsk->sema) == 0) {
unsigned long flags;
SMP_RD_BARRIER_DEPENDS();
if (tsk->terminated) {
break;
}
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);
flags = dhd_os_spin_lock(&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_spin_unlock(&dhd->pub, flags);
}
dhd_os_sdunlock(&dhd->pub);
DHD_OS_WAKE_UNLOCK(&dhd->pub);
} else {
break;
}
complete_and_exit(&tsk->completed, 0);
}
#endif /* DHDTHREAD */
static void dhd_watchdog(ulong data)
{
dhd_info_t *dhd = (dhd_info_t *)data;
unsigned long flags;
DHD_OS_WAKE_LOCK(&dhd->pub);
if (dhd->pub.dongle_reset) {
DHD_OS_WAKE_UNLOCK(&dhd->pub);
return;
}
#ifdef DHDTHREAD
if (dhd->thr_wdt_ctl.thr_pid >= 0) {
up(&dhd->thr_wdt_ctl.sema);
return;
}
#endif /* DHDTHREAD */
dhd_os_sdlock(&dhd->pub);
/* Call the bus module watchdog */
dhd_bus_watchdog(&dhd->pub);
flags = dhd_os_spin_lock(&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_spin_unlock(&dhd->pub, flags);
dhd_os_sdunlock(&dhd->pub);
DHD_OS_WAKE_UNLOCK(&dhd->pub);
}
#ifdef DHDTHREAD
static int
dhd_dpc_thread(void *data)
{
tsk_ctl_t *tsk = (tsk_ctl_t *)data;
dhd_info_t *dhd = (dhd_info_t *)tsk->parent;
/* 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");
/* DHD_OS_WAKE_LOCK is called in dhd_sched_dpc[dhd_linux.c] down below */
/* signal: thread has started */
complete(&tsk->completed);
/* Run until signal received */
while (1) {
if (down_interruptible(&tsk->sema) == 0) {
SMP_RD_BARRIER_DEPENDS();
if (tsk->terminated) {
break;
}
/* 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(&tsk->sema);
}
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(&tsk->completed, 0);
}
#endif /* DHDTHREAD */
static void
dhd_dpc(ulong data)
{
dhd_info_t *dhd;
dhd = (dhd_info_t *)data;
/* this (tasklet) can be scheduled in dhd_sched_dpc[dhd_linux.c]
* down below , wake lock is set,
* the tasklet is initialized in dhd_attach()
*/
/* 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_OS_WAKE_UNLOCK(&dhd->pub);
} else {
dhd_bus_stop(dhd->pub.bus, TRUE);
DHD_OS_WAKE_UNLOCK(&dhd->pub);
}
}
void
dhd_sched_dpc(dhd_pub_t *dhdp)
{
dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
DHD_OS_WAKE_LOCK(dhdp);
#ifdef DHDTHREAD
if (dhd->thr_dpc_ctl.thr_pid >= 0) {
up(&dhd->thr_dpc_ctl.sema);
return;
}
#endif /* DHDTHREAD */
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_wl_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_wl_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_wl_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;
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+1) {
ret = wl_android_priv_cmd(net, ifr, cmd);
DHD_OS_WAKE_UNLOCK(&dhd->pub);
return ret;
}
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) {
bcmerror = BCME_DONGLE_DOWN;
goto done;
}
if (!dhd->pub.iswl) {
bcmerror = BCME_DONGLE_DOWN;
goto done;
}
/*
* Flush the TX queue if required for proper message serialization:
* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
* prevent M4 encryption and
* intercept WLC_DISASSOC IOCTL - serialize WPS-DONE and WLC_DISASSOC IOCTL to
* prevent disassoc frame being sent before WPS-DONE frame.
*/
if (ioc.cmd == WLC_SET_KEY ||
(ioc.cmd == WLC_SET_VAR && ioc.buf != NULL &&
strncmp("wsec_key", ioc.buf, 9) == 0) ||
(ioc.cmd == WLC_SET_VAR && ioc.buf != NULL &&
strncmp("bsscfg:wsec_key", ioc.buf, 15) == 0) ||
ioc.cmd == WLC_DISASSOC)
dhd_wait_pend8021x(net);
#ifdef WLMEDIA_HTSF
if (ioc.buf) {
/* short cut wl ioctl calls here */
if (strcmp("htsf", ioc.buf) == 0) {
dhd_ioctl_htsf_get(dhd, 0);
return BCME_OK;
}
if (strcmp("htsflate", ioc.buf) == 0) {
if (ioc.set) {
memset(ts, 0, sizeof(tstamp_t)*TSMAX);
memset(&maxdelayts, 0, sizeof(tstamp_t));
maxdelay = 0;
tspktcnt = 0;
maxdelaypktno = 0;
memset(&vi_d1.bin, 0, sizeof(uint32)*NUMBIN);
memset(&vi_d2.bin, 0, sizeof(uint32)*NUMBIN);
memset(&vi_d3.bin, 0, sizeof(uint32)*NUMBIN);
memset(&vi_d4.bin, 0, sizeof(uint32)*NUMBIN);
} else {
dhd_dump_latency();
}
return BCME_OK;
}
if (strcmp("htsfclear", ioc.buf) == 0) {
memset(&vi_d1.bin, 0, sizeof(uint32)*NUMBIN);
memset(&vi_d2.bin, 0, sizeof(uint32)*NUMBIN);
memset(&vi_d3.bin, 0, sizeof(uint32)*NUMBIN);
memset(&vi_d4.bin, 0, sizeof(uint32)*NUMBIN);
htsf_seqnum = 0;
return BCME_OK;
}
if (strcmp("htsfhis", ioc.buf) == 0) {
dhd_dump_htsfhisto(&vi_d1, "H to D");
dhd_dump_htsfhisto(&vi_d2, "D to D");
dhd_dump_htsfhisto(&vi_d3, "D to H");
dhd_dump_htsfhisto(&vi_d4, "H to H");
return BCME_OK;
}
if (strcmp("tsport", ioc.buf) == 0) {
if (ioc.set) {
memcpy(&tsport, ioc.buf + 7, 4);
} else {
DHD_ERROR(("current timestamp port: %d \n", tsport));
}
return BCME_OK;
}
}
#endif /* WLMEDIA_HTSF */
bcmerror = dhd_wl_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)
{
int ifidx;
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
if (dhd->pub.up == 0) {
return 0;
}
ifidx = dhd_net2idx(dhd, net);
#ifdef WL_CFG80211
if (ifidx == 0)
wl_cfg80211_down();
#endif
#ifdef PROP_TXSTATUS
dhd_wlfc_cleanup(&dhd->pub);
#endif
/* Set state and stop OS transmissions */
dhd->pub.up = 0;
netif_stop_queue(net);
/* Stop the protocol module */
dhd_prot_stop(&dhd->pub);
#if defined(WL_CFG80211)
if (ifidx == 0)
wl_android_wifi_off(net);
#endif
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;
int32 ret = 0;
/* Update FW path if it was changed */
if ((firmware_path != NULL) && (firmware_path[0] != '\0')) {
if (firmware_path[strlen(firmware_path)-1] == '\n')
firmware_path[strlen(firmware_path)-1] = '\0';
strcpy(fw_path, firmware_path);
firmware_path[0] = '\0';
}
#if !defined(WL_CFG80211)
/** Force start if ifconfig_up gets called before START command
* We keep WEXT's wl_control_wl_start to provide backward compatibility
* This should be removed in the future
*/
wl_control_wl_start(net);
#endif
ifidx = dhd_net2idx(dhd, net);
DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx));
if (ifidx < 0) {
DHD_ERROR(("%s: Error: called with invalid IF\n", __FUNCTION__));
return -1;
}
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) {
atomic_set(&dhd->pend_8021x_cnt, 0);
#if defined(WL_CFG80211)
wl_android_wifi_on(net);
#endif
if (dhd->pub.busstate != DHD_BUS_DATA) {
int ret;
/* try to bring up bus */
if ((ret = dhd_bus_start(&dhd->pub)) != 0) {
DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret));
return -1;
}
}
/* dhd_prot_init has been called in dhd_bus_start or wl_android_wifi_on */
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 /* TOE */
#if defined(WL_CFG80211)
if (unlikely(wl_cfg80211_up())) {
DHD_ERROR(("%s: failed to bring up cfg80211\n", __FUNCTION__));
return -1;
}
#endif /* WL_CFG80211 */
}
/* Allow transmit calls */
netif_start_queue(net);
dhd->pub.up = 1;
#ifdef BCMDBGFS
dhd_dbg_init(&dhd->pub);
#endif
OLD_MOD_INC_USE_COUNT;
return ret;
}
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
}
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 != NULL) {
if (ifp->net != NULL) {
netif_stop_queue(ifp->net);
unregister_netdev(ifp->net);
free_netdev(ifp->net);
}
} else
if ((ifp = MALLOC(dhd->pub.osh, sizeof(dhd_if_t))) == NULL) {
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->thr_sysioc_ctl.thr_pid >= 0);
up(&dhd->thr_sysioc_ctl.sema);
} 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->thr_sysioc_ctl.thr_pid >= 0);
up(&dhd->thr_sysioc_ctl.sema);
}
dhd_pub_t *
dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen)
{
dhd_info_t *dhd = NULL;
struct net_device *net = NULL;
dhd_attach_states_t dhd_state = DHD_ATTACH_STATE_INIT;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
/* updates firmware nvram path if it was provided as module parameters */
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;
}
dhd_state |= DHD_ATTACH_STATE_NET_ALLOC;
/* 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));
#ifdef DHDTHREAD
dhd->thr_dpc_ctl.thr_pid = DHD_PID_KT_TL_INVALID;
dhd->thr_wdt_ctl.thr_pid = DHD_PID_KT_INVALID;
#else
dhd->dhd_tasklet_create = FALSE;
#endif /* DHDTHREAD */
dhd->thr_sysioc_ctl.thr_pid = DHD_PID_KT_INVALID;
dhd_state |= DHD_ATTACH_STATE_DHD_ALLOC;
/*
* Save the dhd_info into the priv
*/
memcpy((void *)netdev_priv(net), &dhd, sizeof(dhd));
dhd->pub.osh = osh;
/* Link to info module */
dhd->pub.info = dhd;
/* Link to bus module */
dhd->pub.bus = bus;
dhd->pub.hdrlen = bus_hdrlen;
/* 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;
dhd_state |= DHD_ATTACH_STATE_ADD_IF;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
net->open = NULL;
#else
net->netdev_ops = NULL;
#endif
sema_init(&dhd->proto_sem, 1);
#ifdef PROP_TXSTATUS
spin_lock_init(&dhd->wlfc_spinlock);
dhd->pub.wlfc_enabled = TRUE;
#endif /* PROP_TXSTATUS */
/* 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->wakelock_spinlock);
dhd->wakelock_counter = 0;
dhd->wakelock_timeout_enable = 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->dhd_net_if_mutex);
#endif
dhd_state |= DHD_ATTACH_STATE_WAKELOCKS_INIT;
/* Attach and link in the protocol */
if (dhd_prot_attach(&dhd->pub) != 0) {
DHD_ERROR(("dhd_prot_attach failed\n"));
goto fail;
}
dhd_state |= DHD_ATTACH_STATE_PROT_ATTACH;
#ifdef WL_CFG80211
/* Attach and link in the cfg80211 */
if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
DHD_ERROR(("wl_cfg80211_attach failed\n"));
goto fail;
}
dhd_monitor_init(&dhd->pub);
dhd_state |= DHD_ATTACH_STATE_CFG80211;
#endif
#if defined(CONFIG_WIRELESS_EXT)
/* Attach and link in the iw */
if (!(dhd_state & DHD_ATTACH_STATE_CFG80211)) {
if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
DHD_ERROR(("wl_iw_attach failed\n"));
goto fail;
}
dhd_state |= DHD_ATTACH_STATE_WL_ATTACH;
}
#endif /* defined(CONFIG_WIRELESS_EXT) */
/* Set up the watchdog timer */
init_timer(&dhd->timer);
dhd->timer.data = (ulong)dhd;
dhd->timer.function = dhd_watchdog;
#ifdef DHDTHREAD
/* Initialize thread based operation and lock */
sema_init(&dhd->sdsem, 1);
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 */
PROC_START(dhd_watchdog_thread, dhd, &dhd->thr_wdt_ctl, 0);
} else {
dhd->thr_wdt_ctl.thr_pid = -1;
}
/* Set up the bottom half handler */
if (dhd_dpc_prio >= 0) {
/* Initialize DPC thread */
PROC_START(dhd_dpc_thread, dhd, &dhd->thr_dpc_ctl, 0);
} else {
/* use tasklet for dpc */
tasklet_init(&dhd->tasklet, dhd_dpc, (ulong)dhd);
dhd->thr_dpc_ctl.thr_pid = -1;
}
#else
/* Set up the bottom half handler */
tasklet_init(&dhd->tasklet, dhd_dpc, (ulong)dhd);
dhd->dhd_tasklet_create = TRUE;
#endif /* DHDTHREAD */
if (dhd_sysioc) {
PROC_START(_dhd_sysioc_thread, dhd, &dhd->thr_sysioc_ctl, 0);
} else {
dhd->thr_sysioc_ctl.thr_pid = -1;
}
dhd_state |= DHD_ATTACH_STATE_THREADS_CREATED;
/*
* Save the dhd_info into the priv
*/
memcpy(netdev_priv(net), &dhd, sizeof(dhd));
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) && 1
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);
dhd_state |= DHD_ATTACH_STATE_EARLYSUSPEND_DONE;
#endif
#ifdef ARP_OFFLOAD_SUPPORT
register_inetaddr_notifier(&dhd_notifier);
#endif /* ARP_OFFLOAD_SUPPORT */
dhd_state |= DHD_ATTACH_STATE_DONE;
dhd->dhd_state = dhd_state;
return &dhd->pub;
fail:
if (dhd_state < DHD_ATTACH_STATE_DHD_ALLOC) {
if (net) free_netdev(net);
} else {
DHD_TRACE(("%s: Calling dhd_detach dhd_state 0x%x &dhd->pub %p\n",
__FUNCTION__, dhd_state, &dhd->pub));
dhd->dhd_state = dhd_state;
dhd_detach(&dhd->pub);
dhd_free(&dhd->pub);
}
return NULL;
}
int
dhd_bus_start(dhd_pub_t *dhdp)
{
int ret = -1;
dhd_info_t *dhd = (dhd_info_t*)dhdp->info;
unsigned long flags;
#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__));
dhd_os_sdlock(dhdp);
/* try to download image and nvram to the dongle */
if ((dhd->pub.busstate == DHD_BUS_DOWN) &&
(fw_path != NULL) && (fw_path[0] != '\0') &&
(nv_path != NULL) && (nv_path[0] != '\0')) {
/* wake lock moved to dhdsdio_download_firmware */
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));
dhd_os_sdunlock(dhdp);
return -1;
}
}
if (dhd->pub.busstate != DHD_BUS_LOAD) {
dhd_os_sdunlock(dhdp);
return -ENETDOWN;
}
/* 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, FALSE)) != 0) {
DHD_ERROR(("%s, dhd_bus_init failed %d\n", __FUNCTION__, ret));
dhd_os_sdunlock(dhdp);
return ret;
}
#if defined(OOB_INTR_ONLY)
/* Host registration for OOB interrupt */
if (bcmsdh_register_oob_intr(dhdp)) {
/* deactivate timer and wait for the handler to finish */
flags = dhd_os_spin_lock(&dhd->pub);
dhd->wd_timer_valid = FALSE;
dhd_os_spin_unlock(&dhd->pub, flags);
del_timer_sync(&dhd->timer);
DHD_ERROR(("%s Host failed to register for OOB\n", __FUNCTION__));
dhd_os_sdunlock(dhdp);
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) {
flags = dhd_os_spin_lock(&dhd->pub);
dhd->wd_timer_valid = FALSE;
dhd_os_spin_unlock(&dhd->pub, flags);
del_timer_sync(&dhd->timer);
DHD_ERROR(("%s failed bus is not ready\n", __FUNCTION__));
dhd_os_sdunlock(dhdp);
return -ENODEV;
}
dhd_os_sdunlock(dhdp);
#ifdef EMBEDDED_PLATFORM
bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf, sizeof(iovbuf));
dhd_wl_ioctl_cmd(dhdp, WLC_GET_VAR, iovbuf, sizeof(iovbuf), FALSE, 0);
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_ACTION_FRAME_RX);
setbit(dhdp->eventmask, WLC_E_ACTION_FRAME_COMPLETE);
#if defined(WLP2P)
setbit(dhdp->eventmask, WLC_E_P2P_PROBREQ_MSG);
#endif /* WLP2P */
#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 = 4;
/* Setup filter to allow only unicast */
dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
dhdp->pktfilter[1] = NULL;
dhdp->pktfilter[2] = NULL;
dhdp->pktfilter[3] = NULL;
#endif /* EMBEDDED_PLATFORM */
#ifdef READ_MACADDR
dhd_read_macaddr(dhd);
#endif
/* Bus is ready, do any protocol initialization */
if ((ret = dhd_prot_init(&dhd->pub)) < 0)
return ret;
#ifdef WRITE_MACADDR
dhd_write_macaddr(dhd->pub.mac.octet);
#endif
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 = TRUE;
ret = dhd_wl_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 /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31)) */
int dhd_change_mtu(dhd_pub_t *dhdp, int new_mtu, int ifidx)
{
struct dhd_info *dhd = dhdp->info;
struct net_device *dev = NULL;
ASSERT(dhd && dhd->iflist[ifidx]);
dev = dhd->iflist[ifidx]->net;
ASSERT(dev);
if (netif_running(dev)) {
DHD_ERROR(("%s: Must be down to change its MTU", dev->name));
return BCME_NOTDOWN;
}
#define DHD_MIN_MTU 1500
#define DHD_MAX_MTU 1752
if ((new_mtu < DHD_MIN_MTU) || (new_mtu > DHD_MAX_MTU)) {
DHD_ERROR(("%s: MTU size %d is invalid.\n", __FUNCTION__, new_mtu));
return BCME_BADARG;
}
dev->mtu = new_mtu;
return 0;
}
#ifdef ARP_OFFLOAD_SUPPORT
/* add or remove AOE host ip(s) (up to 8 IPs on the interface) */
void aoe_update_host_ipv4_table(dhd_pub_t *dhd_pub, u32 ipa, bool add)
{
u32 ipv4_buf[MAX_IPV4_ENTRIES]; /* temp save for AOE host_ip table */
int i;
int ret;
bzero(ipv4_buf, sizeof(ipv4_buf));
/* display what we've got */
ret = dhd_arp_get_arp_hostip_table(dhd_pub, ipv4_buf, sizeof(ipv4_buf));
DHD_ARPOE(("%s: hostip table read from Dongle:\n", __FUNCTION__));
#ifdef AOE_DBG
dhd_print_buf(ipv4_buf, 32, 4); /* max 8 IPs 4b each */
#endif
/* now we saved hoste_ip table, clr it in the dongle AOE */
dhd_aoe_hostip_clr(dhd_pub);
if (ret) {
DHD_ERROR(("%s failed\n", __FUNCTION__));
return;
}
for (i = 0; i < MAX_IPV4_ENTRIES; i++) {
if (add && (ipv4_buf[i] == 0)) {
ipv4_buf[i] = ipa;
add = FALSE; /* added ipa to local table */
DHD_ARPOE(("%s: Saved new IP in temp arp_hostip[%d]\n",
__FUNCTION__, i));
} else if (ipv4_buf[i] == ipa) {
ipv4_buf[i] = 0;
DHD_ARPOE(("%s: removed IP:%x from temp table %d\n",
__FUNCTION__, ipa, i));
}
if (ipv4_buf[i] != 0) {
/* add back host_ip entries from our local cache */
dhd_arp_offload_add_ip(dhd_pub, ipv4_buf[i]);
DHD_ARPOE(("%s: added IP:%x to dongle arp_hostip[%d]\n\n",
__FUNCTION__, ipv4_buf[i], i));
}
}
#ifdef AOE_DBG
/* see the resulting hostip table */
dhd_arp_get_arp_hostip_table(dhd_pub, ipv4_buf, sizeof(ipv4_buf));
DHD_ARPOE(("%s: read back arp_hostip table:\n", __FUNCTION__));
dhd_print_buf(ipv4_buf, 32, 4); /* max 8 IPs 4b each */
#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) {
#endif
switch (event) {
case NETDEV_UP:
DHD_ARPOE(("%s: [%s] Up IP: 0x%x\n",
__FUNCTION__, ifa->ifa_label, ifa->ifa_address));
#ifdef AOE_IP_ALIAS_SUPPORT
if (ifa->ifa_label[strlen(ifa->ifa_label)-2] == 0x3a) {
DHD_ARPOE(("%s:add aliased IP to AOE hostip cache\n",
__FUNCTION__));
aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, TRUE);
}
else
aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, TRUE);
#endif
break;
case NETDEV_DOWN:
DHD_ARPOE(("%s: [%s] Down IP: 0x%x\n",
__FUNCTION__, ifa->ifa_label, ifa->ifa_address));
#ifdef AOE_IP_ALIAS_SUPPORT
if (!(ifa->ifa_label[strlen(ifa->ifa_label)-2] == 0x3a)) {
DHD_ARPOE(("%s: primary interface is down, AOE clr all\n",
__FUNCTION__));
dhd_aoe_hostip_clr(&dhd->pub);
dhd_aoe_arp_clr(&dhd->pub);
} else
aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, FALSE);
#else
dhd_aoe_hostip_clr(&dhd->pub);
dhd_aoe_arp_clr(&dhd->pub);
#endif
break;
default:
DHD_ARPOE(("%s: do noting for [%s] Event: %lu\n",
__func__, ifa->ifa_label, event));
break;
}
}
return NOTIFY_DONE;
}
#endif /* ARP_OFFLOAD_SUPPORT */
int
dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
{
dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
struct net_device *net = NULL;
int err = 0;
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
/* Ok, link into the network layer... */
if (ifidx == 0) {
/*
* device functions for the primary interface only
*/
#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
} else {
/*
* We have to use the primary MAC for virtual interfaces
*/
memcpy(temp_addr, dhd->iflist[ifidx]->mac_addr, ETHER_ADDR_LEN);
/*
* Android sets the locally administered bit to indicate that this is a
* portable hotspot. This will not work in simultaneous AP/STA mode,
* nor with P2P. Need to set the Donlge's MAC address, and then use that.
*/
if (ifidx > 0) {
DHD_ERROR(("%s interface [%s]: set locally administered bit in MAC\n",
__func__, net->name));
temp_addr[0] |= 0x02;
}
}
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 = DBUS_RX_BUFFER_SIZE_DHD(net);
memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);
if ((err = register_netdev(net)) != 0) {
DHD_ERROR(("couldn't register the net device, err %d\n", err));
goto fail;
}
printf("Broadcom Dongle Host Driver: register interface [%s]"
" MAC: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
net->name,
net->dev_addr[0], net->dev_addr[1], net->dev_addr[2],
net->dev_addr[3], net->dev_addr[4], net->dev_addr[5]);
#if defined(SOFTAP) && defined(CONFIG_WIRELESS_EXT) && !defined(WL_CFG80211)
wl_iw_iscan_set_scan_broadcast_prep(net, 1);
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
if (ifidx == 0) {
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 err;
}
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) {
/** In case of Android cfg80211 driver, the bus is down in dhd_stop,
* calling stop again will cuase SD read/write errors.
*/
if (dhd->pub.busstate != DHD_BUS_DOWN) {
/* 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) */
}
}
}
void dhd_detach(dhd_pub_t *dhdp)
{
dhd_info_t *dhd;
unsigned long flags;
int timer_valid = FALSE;
if (!dhdp)
return;
dhd = (dhd_info_t *)dhdp->info;
if (!dhd)
return;
DHD_TRACE(("%s: Enter state 0x%x\n", __FUNCTION__, dhd->dhd_state));
if (!(dhd->dhd_state & DHD_ATTACH_STATE_DONE)) {
/* Give sufficient time for threads to start running in case
* dhd_attach() has failed
*/
osl_delay(1000*100);
}
#ifdef ARP_OFFLOAD_SUPPORT
unregister_inetaddr_notifier(&dhd_notifier);
#endif /* ARP_OFFLOAD_SUPPORT */
#if defined(CONFIG_HAS_EARLYSUSPEND)
if (dhd->dhd_state & DHD_ATTACH_STATE_EARLYSUSPEND_DONE) {
if (dhd->early_suspend.suspend)
unregister_early_suspend(&dhd->early_suspend);
}
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
#if defined(CONFIG_WIRELESS_EXT)
if (dhd->dhd_state & DHD_ATTACH_STATE_WL_ATTACH) {
/* Detatch and unlink in the iw */
wl_iw_detach();
}
#endif /* defined(CONFIG_WIRELESS_EXT) */
if (&dhd->thr_sysioc_ctl.thr_pid >= 0) {
PROC_STOP(&dhd->thr_sysioc_ctl);
}
/* delete all interfaces, start with virtual */
if (dhd->dhd_state & DHD_ATTACH_STATE_ADD_IF) {
int i = 1;
dhd_if_t *ifp;
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]);
}
/* delete primary interface 0 */
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
{
if (ifp->net) {
unregister_netdev(ifp->net);
free_netdev(ifp->net);
ifp->net = NULL;
}
MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
dhd->iflist[0] = NULL;
}
}
/* Clear the watchdog timer */
flags = dhd_os_spin_lock(&dhd->pub);
timer_valid = dhd->wd_timer_valid;
dhd->wd_timer_valid = FALSE;
dhd_os_spin_unlock(&dhd->pub, flags);
if (timer_valid)
del_timer_sync(&dhd->timer);
if (dhd->dhd_state & DHD_ATTACH_STATE_THREADS_CREATED) {
#ifdef DHDTHREAD
if (dhd->thr_wdt_ctl.thr_pid >= 0) {
PROC_STOP(&dhd->thr_wdt_ctl);
}
if (dhd->thr_dpc_ctl.thr_pid >= 0) {
PROC_STOP(&dhd->thr_dpc_ctl);
}
else
#endif /* DHDTHREAD */
tasklet_kill(&dhd->tasklet);
}
if (dhd->dhd_state & DHD_ATTACH_STATE_PROT_ATTACH) {
dhd_bus_detach(dhdp);
if (dhdp->prot)
dhd_prot_detach(dhdp);
}
#ifdef WL_CFG80211
if (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211) {
wl_cfg80211_detach();
dhd_monitor_uninit();
}
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP)
unregister_pm_notifier(&dhd_sleep_pm_notifier);
#endif
if (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT) {
#ifdef CONFIG_HAS_WAKELOCK
wake_lock_destroy(&dhd->wl_wifi);
wake_lock_destroy(&dhd->wl_rxwake);
#endif
}
}
void
dhd_free(dhd_pub_t *dhdp)
{
dhd_info_t *dhd;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
if (dhdp) {
dhd = (dhd_info_t *)dhdp->info;
if (dhd)
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(CONFIG_WIFI_CONTROL_FUNC)
wl_android_wifictrl_func_del();
#endif /* CONFIG_WIFI_CONTROL_FUNC */
wl_android_exit();
/* 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 = 0;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
wl_android_init();
#ifdef DHDTHREAD
/* 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);
#endif /* DHDTHREAD */
/* Call customer gpio to turn on power with WL_REG_ON signal */
dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
#if defined(CONFIG_WIFI_CONTROL_FUNC)
if (wl_android_wifictrl_func_add() < 0)
goto fail_1;
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
sema_init(&dhd_registration_sem, 0);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
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
#if defined(WL_CFG80211)
error = wl_android_post_init();
#endif
return error;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && 1
fail_2:
dhd_bus_unregister();
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
fail_1:
#if defined(CONFIG_WIFI_CONTROL_FUNC)
wl_android_wifictrl_func_del();
#endif
/* Call customer gpio to turn off power with WL_REG_ON signal */
dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
return error;
}
late_initcall(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 */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
timeout = msecs_to_jiffies(timeout);
#else
timeout = timeout * HZ / 1000;
#endif
/* Wait until control frame is available */
add_wait_queue(&dhd->ioctl_resp_wait, &wait);
set_current_state(TASK_INTERRUPTIBLE);
/* Memory barrier to support multi-processing
* As the variable "condition", which points to dhd->rxlen (dhd_bus_rxctl[dhd_sdio.c])
* Can be changed by another processor.
*/
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;
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
flags = dhd_os_spin_lock(pub);
/* don't start the wd until fw is loaded */
if (pub->busstate == DHD_BUS_DOWN) {
dhd_os_spin_unlock(pub, flags);
return;
}
/* Totally stop the timer */
if (!wdtick && dhd->wd_timer_valid == TRUE) {
dhd->wd_timer_valid = FALSE;
dhd_os_spin_unlock(pub, flags);
#ifdef DHDTHREAD
del_timer_sync(&dhd->timer);
#else
del_timer(&dhd->timer);
#endif /* DHDTHREAD */
return;
}
if (wdtick) {
dhd_watchdog_ms = (uint)wdtick;
/* Re arm the timer, at last watchdog period */
mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
dhd->wd_timer_valid = TRUE;
}
dhd_os_spin_unlock(pub, flags);
}
void *
dhd_os_open_image(char *filename)
{
struct file *fp;
/* wl_cfg80211_request_fw(filename); */
fp = filp_open(filename, O_RDONLY, 0);
/*
* 2.6.11 (FC4) supports filp_open() but later revs don't?
* Alternative:
* fp = open_namei(AT_FDCWD, filename, O_RD, 0);
* ???
*/
if (IS_ERR(fp))
fp = NULL;
return fp;
}
int
dhd_os_get_image_block(char *buf, int len, void *image)
{
struct file *fp = (struct file *)image;
int rdlen;
/* wl_cfg80211_read_fw(buf, len); */
if (!image)
return 0;
rdlen = kernel_read(fp, fp->f_pos, buf, len);
if (rdlen > 0)
fp->f_pos += rdlen;
return rdlen;
}
void
dhd_os_close_image(void *image)
{
/* wl_cfg80211_release_fw(); */
if (image)
filp_close((struct file *)image, NULL);
}
void
dhd_os_sdlock(dhd_pub_t *pub)
{
dhd_info_t *dhd;
dhd = (dhd_info_t *)(pub->info);
#ifdef DHDTHREAD
if (dhd->threads_only)
down(&dhd->sdsem);
else
#endif /* DHDTHREAD */
spin_lock_bh(&dhd->sdlock);
}
void
dhd_os_sdunlock(dhd_pub_t *pub)
{
dhd_info_t *dhd;
dhd = (dhd_info_t *)(pub->info);
#ifdef DHDTHREAD
if (dhd->threads_only)
up(&dhd->sdsem);
else
#endif /* DHDTHREAD */
spin_unlock_bh(&dhd->sdlock);
}
void
dhd_os_sdlock_txq(dhd_pub_t *pub)
{
dhd_info_t *dhd;
dhd = (dhd_info_t *)(pub->info);
spin_lock_bh(&dhd->txqlock);
}
void
dhd_os_sdunlock_txq(dhd_pub_t *pub)
{
dhd_info_t *dhd;
dhd = (dhd_info_t *)(pub->info);
spin_unlock_bh(&dhd->txqlock);
}
void
dhd_os_sdlock_rxq(dhd_pub_t *pub)
{
}
void
dhd_os_sdunlock_rxq(dhd_pub_t *pub)
{
}
void
dhd_os_sdtxlock(dhd_pub_t *pub)
{
dhd_os_sdlock(pub);
}
void
dhd_os_sdtxunlock(dhd_pub_t *pub)
{
dhd_os_sdunlock(pub);
}
#if defined(DHD_USE_STATIC_BUF)
uint8* dhd_os_prealloc(void *osh, int section, uint size)
{
return (uint8*)wl_android_prealloc(section, size);
}
void dhd_os_prefree(void *osh, void *addr, uint size)
{
}
#endif /* defined(CONFIG_WIFI_CONTROL_FUNC) */
#if defined(CONFIG_WIRELESS_EXT)
struct iw_statistics *
dhd_get_wireless_stats(struct net_device *dev)
{
int res = 0;
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
if (!dhd->pub.up) {
return NULL;
}
res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);
if (res == 0)
return &dhd->iw.wstats;
else
return NULL;
}
#endif /* defined(CONFIG_WIRELESS_EXT) */
static int
dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
wl_event_msg_t *event, void **data)
{
int bcmerror = 0;
ASSERT(dhd != NULL);
bcmerror = wl_host_event(&dhd->pub, ifidx, pktdata, event, data);
if (bcmerror != BCME_OK)
return (bcmerror);
#if defined(CONFIG_WIRELESS_EXT)
if (event->bsscfgidx == 0) {
/*
* Wireless ext is on primary interface only
*/
ASSERT(dhd->iflist[*ifidx] != NULL);
ASSERT(dhd->iflist[*ifidx]->net != NULL);
if (dhd->iflist[*ifidx]->net) {
wl_iw_event(dhd->iflist[*ifidx]->net, event, *data);
}
}
#endif /* defined(CONFIG_WIRELESS_EXT) */
#ifdef WL_CFG80211
if ((wl_cfg80211_is_progress_ifchange() ||
wl_cfg80211_is_progress_ifadd()) && (*ifidx != 0)) {
/*
* If IF_ADD/CHANGE operation is going on,
* discard any event received on the virtual I/F
*/
return (BCME_OK);
}
ASSERT(dhd->iflist[*ifidx] != NULL);
ASSERT(dhd->iflist[*ifidx]->net != NULL);
if (dhd->iflist[*ifidx]->net) {
wl_cfg80211_event(dhd->iflist[*ifidx]->net, event, *data);
}
#endif /* defined(WL_CFG80211) */
return (bcmerror);
}
/* send up locally generated event */
void
dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
{
switch (ntoh32(event->event_type)) {
/* Send up locally generated AMP HCI Events */
case WLC_E_BTA_HCI_EVENT: {
struct sk_buff *p, *skb;
bcm_event_t *msg;
wl_event_msg_t *p_bcm_event;
char *ptr;
uint32 len;
uint32 pktlen;
dhd_if_t *ifp;
dhd_info_t *dhd;
uchar *eth;
int ifidx;
len = ntoh32(event->datalen);
pktlen = sizeof(bcm_event_t) + len + 2;
dhd = dhdp->info;
ifidx = dhd_ifname2idx(dhd, event->ifname);
if ((p = PKTGET(dhdp->osh, pktlen, FALSE))) {
ASSERT(ISALIGNED((uintptr)PKTDATA(dhdp->osh, p), sizeof(uint32)));
msg = (bcm_event_t *) PKTDATA(dhdp->osh, p);
bcopy(&dhdp->mac, &msg->eth.ether_dhost, ETHER_ADDR_LEN);
bcopy(&dhdp->mac, &msg->eth.ether_shost, ETHER_ADDR_LEN);
ETHER_TOGGLE_LOCALADDR(&msg->eth.ether_shost);
msg->eth.ether_type = hton16(ETHER_TYPE_BRCM);
/* BCM Vendor specific header... */
msg->bcm_hdr.subtype = hton16(BCMILCP_SUBTYPE_VENDOR_LONG);
msg->bcm_hdr.version = BCMILCP_BCM_SUBTYPEHDR_VERSION;
bcopy(BRCM_OUI, &msg->bcm_hdr.oui[0], DOT11_OUI_LEN);
/* vendor spec header length + pvt data length (private indication
* hdr + actual message itself)
*/
msg->bcm_hdr.length = hton16(BCMILCP_BCM_SUBTYPEHDR_MINLENGTH +
BCM_MSG_LEN + sizeof(wl_event_msg_t) + (uint16)len);
msg->bcm_hdr.usr_subtype = hton16(BCMILCP_BCM_SUBTYPE_EVENT);
PKTSETLEN(dhdp->osh, p, (sizeof(bcm_event_t) + len + 2));
/* copy wl_event_msg_t into sk_buf */
/* pointer to wl_event_msg_t in sk_buf */
p_bcm_event = &msg->event;
bcopy(event, p_bcm_event, sizeof(wl_event_msg_t));
/* copy hci event into sk_buf */
bcopy(data, (p_bcm_event + 1), len);
msg->bcm_hdr.length = hton16(sizeof(wl_event_msg_t) +
ntoh16(msg->bcm_hdr.length));
PKTSETLEN(dhdp->osh, p, (sizeof(bcm_event_t) + len + 2));
ptr = (char *)(msg + 1);
/* Last 2 bytes of the message are 0x00 0x00 to signal that there
* are no ethertypes which are following this
*/
ptr[len+0] = 0x00;
ptr[len+1] = 0x00;
skb = PKTTONATIVE(dhdp->osh, p);
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);
skb->data = eth;
skb->len = len;
/* Strip header, count, deliver upward */
skb_pull(skb, ETH_HLEN);
/* Send the packet */
if (in_interrupt()) {
netif_rx(skb);
} else {
netif_rx_ni(skb);
}
}
else {
/* Could not allocate a sk_buf */
DHD_ERROR(("%s: unable to alloc sk_buf", __FUNCTION__));
}
break;
} /* case WLC_E_BTA_HCI_EVENT */
default:
break;
}
}
void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
struct dhd_info *dhdinfo = dhd->info;
dhd_os_sdunlock(dhd);
wait_event_interruptible_timeout(dhdinfo->ctrl_wait, (*lockvar == FALSE), HZ * 2);
dhd_os_sdlock(dhd);
#endif
return;
}
void dhd_wait_event_wakeup(dhd_pub_t *dhd)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
struct dhd_info *dhdinfo = dhd->info;
if (waitqueue_active(&dhdinfo->ctrl_wait))
wake_up_interruptible(&dhdinfo->ctrl_wait);
#endif
return;
}
int
dhd_dev_reset(struct net_device *dev, uint8 flag)
{
int ret;
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
ret = dhd_bus_devreset(&dhd->pub, flag);
if (ret) {
DHD_ERROR(("%s: dhd_bus_devreset: %d\n", __FUNCTION__, ret));
return ret;
}
return ret;
}
int net_os_set_suspend_disable(struct net_device *dev, int val)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
int ret = 0;
if (dhd) {
ret = dhd->pub.suspend_disable_flag;
dhd->pub.suspend_disable_flag = val;
}
return ret;
}
int net_os_set_suspend(struct net_device *dev, int val)
{
int ret = 0;
#if defined(CONFIG_HAS_EARLYSUSPEND)
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
if (dhd) {
ret = dhd_set_suspend(val, &dhd->pub);
}
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
return ret;
}
int net_os_set_dtim_skip(struct net_device *dev, int val)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
if (dhd)
dhd->pub.dtim_skip = val;
return 0;
}
int net_os_rxfilter_add_remove(struct net_device *dev, int add_remove, int num)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
char *filterp = NULL;
int ret = 0;
if (!dhd || (num == DHD_UNICAST_FILTER_NUM))
return ret;
if (num >= dhd->pub.pktfilter_count)
return -EINVAL;
if (add_remove) {
switch (num) {
case DHD_BROADCAST_FILTER_NUM:
filterp = "101 0 0 0 0xFFFFFFFFFFFF 0xFFFFFFFFFFFF";
break;
case DHD_MULTICAST4_FILTER_NUM:
filterp = "102 0 0 0 0xFFFFFF 0x01005E";
break;
case DHD_MULTICAST6_FILTER_NUM:
filterp = "103 0 0 0 0xFFFF 0x3333";
break;
default:
return -EINVAL;
}
}
dhd->pub.pktfilter[num] = filterp;
return ret;
}
int net_os_set_packet_filter(struct net_device *dev, int val)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
int ret = 0;
/* Packet filtering is set only if we still in early-suspend and
* we need either to turn it ON or turn it OFF
* We can always turn it OFF in case of early-suspend, but we turn it
* back ON only if suspend_disable_flag was not set
*/
if (dhd && dhd->pub.up) {
if (dhd->pub.in_suspend) {
if (!val || (val && !dhd->pub.suspend_disable_flag))
dhd_set_packet_filter(val, &dhd->pub);
}
}
return ret;
}
void
dhd_dev_init_ioctl(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
dhd_preinit_ioctls(&dhd->pub);
}
#ifdef PNO_SUPPORT
/* Linux wrapper to call common dhd_pno_clean */
int
dhd_dev_pno_reset(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
return (dhd_pno_clean(&dhd->pub));
}
/* Linux wrapper to call common dhd_pno_enable */
int
dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
return (dhd_pno_enable(&dhd->pub, pfn_enabled));
}
/* Linux wrapper to call common dhd_pno_set */
int
dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t* ssids_local, int nssid,
ushort scan_fr, int pno_repeat, int pno_freq_expo_max)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
return (dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr, pno_repeat, pno_freq_expo_max));
}
/* Linux wrapper to get pno status */
int
dhd_dev_get_pno_status(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
return (dhd_pno_get_status(&dhd->pub));
}
#endif /* PNO_SUPPORT */
int net_os_send_hang_message(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
int ret = 0;
if (dhd) {
if (!dhd->hang_was_sent) {
dhd->hang_was_sent = 1;
#if defined(CONFIG_WIRELESS_EXT)
ret = wl_iw_send_priv_event(dev, "HANG");
#endif
}
}
return ret;
}
void dhd_bus_country_set(struct net_device *dev, wl_country_t *cspec)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
if (dhd && dhd->pub.up)
memcpy(&dhd->pub.dhd_cspec, cspec, sizeof(wl_country_t));
}
void dhd_net_if_lock(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
dhd_net_if_lock_local(dhd);
}
void dhd_net_if_unlock(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
dhd_net_if_unlock_local(dhd);
}
static void dhd_net_if_lock_local(dhd_info_t *dhd)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
if (dhd)
mutex_lock(&dhd->dhd_net_if_mutex);
#endif
}
static void dhd_net_if_unlock_local(dhd_info_t *dhd)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
if (dhd)
mutex_unlock(&dhd->dhd_net_if_mutex);
#endif
}
unsigned long dhd_os_spin_lock(dhd_pub_t *pub)
{
dhd_info_t *dhd = (dhd_info_t *)(pub->info);
unsigned long flags = 0;
if (dhd)
spin_lock_irqsave(&dhd->dhd_lock, flags);
return flags;
}
void dhd_os_spin_unlock(dhd_pub_t *pub, unsigned long flags)
{
dhd_info_t *dhd = (dhd_info_t *)(pub->info);
if (dhd)
spin_unlock_irqrestore(&dhd->dhd_lock, flags);
}
static int
dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
{
return (atomic_read(&dhd->pend_8021x_cnt));
}
#define MAX_WAIT_FOR_8021X_TX 10
int
dhd_wait_pend8021x(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
int timeout = 10 * HZ / 1000;
int ntimes = MAX_WAIT_FOR_8021X_TX;
int pend = dhd_get_pend_8021x_cnt(dhd);
while (ntimes && pend) {
if (pend) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(timeout);
set_current_state(TASK_RUNNING);
ntimes--;
}
pend = dhd_get_pend_8021x_cnt(dhd);
}
return pend;
}
#ifdef DHD_DEBUG
int
write_to_file(dhd_pub_t *dhd, uint8 *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) {
printf("%s: open file error\n", __FUNCTION__);
ret = -1;
goto exit;
}
/* Write buf to file */
fp->f_op->write(fp, buf, size, &pos);
exit:
/* free buf before return */
MFREE(dhd->osh, buf, size);
/* close file before return */
if (fp)
filp_close(fp, current->files);
/* restore previous address limit */
set_fs(old_fs);
return ret;
}
#endif /* DHD_DEBUG */
int dhd_os_wake_lock_timeout(dhd_pub_t *pub)
{
dhd_info_t *dhd = (dhd_info_t *)(pub->info);
unsigned long flags;
int ret = 0;
if (dhd) {
spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
ret = dhd->wakelock_timeout_enable;
#ifdef CONFIG_HAS_WAKELOCK
if (dhd->wakelock_timeout_enable)
wake_lock_timeout(&dhd->wl_rxwake, HZ);
#endif
dhd->wakelock_timeout_enable = 0;
spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
}
return ret;
}
int net_os_wake_lock_timeout(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
int ret = 0;
if (dhd)
ret = dhd_os_wake_lock_timeout(&dhd->pub);
return ret;
}
int dhd_os_wake_lock_timeout_enable(dhd_pub_t *pub)
{
dhd_info_t *dhd = (dhd_info_t *)(pub->info);
unsigned long flags;
if (dhd) {
spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
dhd->wakelock_timeout_enable = 1;
spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
}
return 0;
}
int net_os_wake_lock_timeout_enable(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
int ret = 0;
if (dhd)
ret = dhd_os_wake_lock_timeout_enable(&dhd->pub);
return ret;
}
int dhd_os_wake_lock(dhd_pub_t *pub)
{
dhd_info_t *dhd = (dhd_info_t *)(pub->info);
unsigned long flags;
int ret = 0;
if (dhd) {
spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
#ifdef CONFIG_HAS_WAKELOCK
if (!dhd->wakelock_counter)
wake_lock(&dhd->wl_wifi);
#endif
dhd->wakelock_counter++;
ret = dhd->wakelock_counter;
spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
}
return ret;
}
int net_os_wake_lock(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
int ret = 0;
if (dhd)
ret = dhd_os_wake_lock(&dhd->pub);
return ret;
}
int dhd_os_wake_unlock(dhd_pub_t *pub)
{
dhd_info_t *dhd = (dhd_info_t *)(pub->info);
unsigned long flags;
int ret = 0;
dhd_os_wake_lock_timeout(pub);
if (dhd) {
spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
if (dhd->wakelock_counter) {
dhd->wakelock_counter--;
#ifdef CONFIG_HAS_WAKELOCK
if (!dhd->wakelock_counter)
wake_unlock(&dhd->wl_wifi);
#endif
ret = dhd->wakelock_counter;
}
spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
}
return ret;
}
int net_os_wake_unlock(struct net_device *dev)
{
dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
int ret = 0;
if (dhd)
ret = dhd_os_wake_unlock(&dhd->pub);
return ret;
}
int dhd_ioctl_entry_local(struct net_device *net, wl_ioctl_t *ioc, int cmd)
{
int ifidx;
int ret = 0;
dhd_info_t *dhd = NULL;
if (!net || !netdev_priv(net)) {
DHD_ERROR(("%s invalid parameter\n", __FUNCTION__));
return -EINVAL;
}
dhd = *(dhd_info_t **)netdev_priv(net);
ifidx = dhd_net2idx(dhd, net);
if (ifidx == DHD_BAD_IF) {
DHD_ERROR(("%s bad ifidx\n", __FUNCTION__));
return -ENODEV;
}
DHD_OS_WAKE_LOCK(&dhd->pub);
ret = dhd_wl_ioctl(&dhd->pub, ifidx, ioc, ioc->buf, ioc->len);
DHD_OS_WAKE_UNLOCK(&dhd->pub);
return ret;
}
#ifdef PROP_TXSTATUS
extern int dhd_wlfc_interface_entry_update(void* state, ewlfc_mac_entry_action_t action, uint8 ifid,
uint8 iftype, uint8* ea);
extern int dhd_wlfc_FIFOcreditmap_update(void* state, uint8* credits);
int dhd_wlfc_interface_event(struct dhd_info *dhd, uint8 action, uint8 ifid, uint8 iftype,
uint8* ea)
{
if (dhd->pub.wlfc_state == NULL)
return BCME_OK;
return dhd_wlfc_interface_entry_update(dhd->pub.wlfc_state, action, ifid, iftype, ea);
}
int dhd_wlfc_FIFOcreditmap_event(struct dhd_info *dhd, uint8* event_data)
{
if (dhd->pub.wlfc_state == NULL)
return BCME_OK;
return dhd_wlfc_FIFOcreditmap_update(dhd->pub.wlfc_state, event_data);
}
int dhd_wlfc_event(struct dhd_info *dhd)
{
return dhd_wlfc_enable(&dhd->pub);
}
#endif /* PROP_TXSTATUS */
#ifdef BCMDBGFS
#include <linux/debugfs.h>
extern uint32 dhd_readregl(void *bp, uint32 addr);
extern uint32 dhd_writeregl(void *bp, uint32 addr, uint32 data);
typedef struct dhd_dbgfs {
struct dentry *debugfs_dir;
struct dentry *debugfs_mem;
dhd_pub_t *dhdp;
uint32 size;
} dhd_dbgfs_t;
dhd_dbgfs_t g_dbgfs;
static int
dhd_dbg_state_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static ssize_t
dhd_dbg_state_read(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
ssize_t rval;
uint32 tmp;
loff_t pos = *ppos;
size_t ret;
if (pos < 0)
return -EINVAL;
if (pos >= g_dbgfs.size || !count)
return 0;
if (count > g_dbgfs.size - pos)
count = g_dbgfs.size - pos;
/* Basically enforce aligned 4 byte reads. It's up to the user to work out the details */
tmp = dhd_readregl(g_dbgfs.dhdp->bus, file->f_pos & (~3));
ret = copy_to_user(ubuf, &tmp, 4);
if (ret == count)
return -EFAULT;
count -= ret;
*ppos = pos + count;
rval = count;
return rval;
}
static ssize_t
dhd_debugfs_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos)
{
loff_t pos = *ppos;
size_t ret;
uint32 buf;
if (pos < 0)
return -EINVAL;
if (pos >= g_dbgfs.size || !count)
return 0;
if (count > g_dbgfs.size - pos)
count = g_dbgfs.size - pos;
ret = copy_from_user(&buf, ubuf, sizeof(uint32));
if (ret == count)
return -EFAULT;
/* Basically enforce aligned 4 byte writes. It's up to the user to work out the details */
dhd_writeregl(g_dbgfs.dhdp->bus, file->f_pos & (~3), buf);
return count;
}
loff_t
dhd_debugfs_lseek(struct file *file, loff_t off, int whence)
{
loff_t pos = -1;
switch (whence) {
case 0:
pos = off;
break;
case 1:
pos = file->f_pos + off;
break;
case 2:
pos = g_dbgfs.size - off;
}
return (pos < 0 || pos > g_dbgfs.size) ? -EINVAL : (file->f_pos = pos);
}
static const struct file_operations dhd_dbg_state_ops = {
.read = dhd_dbg_state_read,
.write = dhd_debugfs_write,
.open = dhd_dbg_state_open,
.llseek = dhd_debugfs_lseek
};
static void dhd_dbg_create(void)
{
if (g_dbgfs.debugfs_dir) {
g_dbgfs.debugfs_mem = debugfs_create_file("mem", 0644, g_dbgfs.debugfs_dir,
NULL, &dhd_dbg_state_ops);
}
}
void dhd_dbg_init(dhd_pub_t *dhdp)
{
int err;
g_dbgfs.dhdp = dhdp;
g_dbgfs.size = 0x20000000; /* Allow access to various cores regs */
g_dbgfs.debugfs_dir = debugfs_create_dir("dhd", 0);
if (IS_ERR(g_dbgfs.debugfs_dir)) {
err = PTR_ERR(g_dbgfs.debugfs_dir);
g_dbgfs.debugfs_dir = NULL;
return;
}
dhd_dbg_create();
return;
}
void dhd_dbg_remove(void)
{
debugfs_remove(g_dbgfs.debugfs_mem);
debugfs_remove(g_dbgfs.debugfs_dir);
bzero((unsigned char *) &g_dbgfs, sizeof(g_dbgfs));
}
#endif /* ifdef BCMDBGFS */
#ifdef WLMEDIA_HTSF
static
void dhd_htsf_addtxts(dhd_pub_t *dhdp, void *pktbuf)
{
dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
struct sk_buff *skb;
uint32 htsf = 0;
uint16 dport = 0, oldmagic = 0xACAC;
char *p1;
htsfts_t ts;
/* timestamp packet */
p1 = (char*) PKTDATA(dhdp->osh, pktbuf);
if (PKTLEN(dhdp->osh, pktbuf) > HTSF_MINLEN) {
/* memcpy(&proto, p1+26, 4); */
memcpy(&dport, p1+40, 2);
/* proto = ((ntoh32(proto))>> 16) & 0xFF; */
dport = ntoh16(dport);
}
/* timestamp only if icmp or udb iperf with port 5555 */
/* if (proto == 17 && dport == tsport) { */
if (dport >= tsport && dport <= tsport + 20) {
skb = (struct sk_buff *) pktbuf;
htsf = dhd_get_htsf(dhd, 0);
memset(skb->data + 44, 0, 2); /* clear checksum */
memcpy(skb->data+82, &oldmagic, 2);
memcpy(skb->data+84, &htsf, 4);
memset(&ts, 0, sizeof(htsfts_t));
ts.magic = HTSFMAGIC;
ts.prio = PKTPRIO(pktbuf);
ts.seqnum = htsf_seqnum++;
ts.c10 = get_cycles();
ts.t10 = htsf;
ts.endmagic = HTSFENDMAGIC;
memcpy(skb->data + HTSF_HOSTOFFSET, &ts, sizeof(ts));
}
}
static void dhd_dump_htsfhisto(histo_t *his, char *s)
{
int pktcnt = 0, curval = 0, i;
for (i = 0; i < (NUMBIN-2); i++) {
curval += 500;
printf("%d ", his->bin[i]);
pktcnt += his->bin[i];
}
printf(" max: %d TotPkt: %d neg: %d [%s]\n", his->bin[NUMBIN-2], pktcnt,
his->bin[NUMBIN-1], s);
}
static
void sorttobin(int value, histo_t *histo)
{
int i, binval = 0;
if (value < 0) {
histo->bin[NUMBIN-1]++;
return;
}
if (value > histo->bin[NUMBIN-2]) /* store the max value */
histo->bin[NUMBIN-2] = value;
for (i = 0; i < (NUMBIN-2); i++) {
binval += 500; /* 500m s bins */
if (value <= binval) {
histo->bin[i]++;
return;
}
}
histo->bin[NUMBIN-3]++;
}
static
void dhd_htsf_addrxts(dhd_pub_t *dhdp, void *pktbuf)
{
dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
struct sk_buff *skb;
char *p1;
uint16 old_magic;
int d1, d2, d3, end2end;
htsfts_t *htsf_ts;
uint32 htsf;
skb = PKTTONATIVE(dhdp->osh, pktbuf);
p1 = (char*)PKTDATA(dhdp->osh, pktbuf);
if (PKTLEN(osh, pktbuf) > HTSF_MINLEN) {
memcpy(&old_magic, p1+78, 2);
htsf_ts = (htsfts_t*) (p1 + HTSF_HOSTOFFSET - 4);
}
else
return;
if (htsf_ts->magic == HTSFMAGIC) {
htsf_ts->tE0 = dhd_get_htsf(dhd, 0);
htsf_ts->cE0 = get_cycles();
}
if (old_magic == 0xACAC) {
tspktcnt++;
htsf = dhd_get_htsf(dhd, 0);
memcpy(skb->data+92, &htsf, sizeof(uint32));
memcpy(&ts[tsidx].t1, skb->data+80, 16);
d1 = ts[tsidx].t2 - ts[tsidx].t1;
d2 = ts[tsidx].t3 - ts[tsidx].t2;
d3 = ts[tsidx].t4 - ts[tsidx].t3;
end2end = ts[tsidx].t4 - ts[tsidx].t1;
sorttobin(d1, &vi_d1);
sorttobin(d2, &vi_d2);
sorttobin(d3, &vi_d3);
sorttobin(end2end, &vi_d4);
if (end2end > 0 && end2end > maxdelay) {
maxdelay = end2end;
maxdelaypktno = tspktcnt;
memcpy(&maxdelayts, &ts[tsidx], 16);
}
if (++tsidx >= TSMAX)
tsidx = 0;
}
}
uint32 dhd_get_htsf(dhd_info_t *dhd, int ifidx)
{
uint32 htsf = 0, cur_cycle, delta, delta_us;
uint32 factor, baseval, baseval2;
cycles_t t;
t = get_cycles();
cur_cycle = t;
if (cur_cycle > dhd->htsf.last_cycle)
delta = cur_cycle - dhd->htsf.last_cycle;
else {
delta = cur_cycle + (0xFFFFFFFF - dhd->htsf.last_cycle);
}
delta = delta >> 4;
if (dhd->htsf.coef) {
/* times ten to get the first digit */
factor = (dhd->htsf.coef*10 + dhd->htsf.coefdec1);
baseval = (delta*10)/factor;
baseval2 = (delta*10)/(factor+1);
delta_us = (baseval - (((baseval - baseval2) * dhd->htsf.coefdec2)) / 10);
htsf = (delta_us << 4) + dhd->htsf.last_tsf + HTSF_BUS_DELAY;
}
else {
DHD_ERROR(("-------dhd->htsf.coef = 0 -------\n"));
}
return htsf;
}
static void dhd_dump_latency(void)
{
int i, max = 0;
int d1, d2, d3, d4, d5;
printf("T1 T2 T3 T4 d1 d2 t4-t1 i \n");
for (i = 0; i < TSMAX; i++) {
d1 = ts[i].t2 - ts[i].t1;
d2 = ts[i].t3 - ts[i].t2;
d3 = ts[i].t4 - ts[i].t3;
d4 = ts[i].t4 - ts[i].t1;
d5 = ts[max].t4-ts[max].t1;
if (d4 > d5 && d4 > 0) {
max = i;
}
printf("%08X %08X %08X %08X \t%d %d %d %d i=%d\n",
ts[i].t1, ts[i].t2, ts[i].t3, ts[i].t4,
d1, d2, d3, d4, i);
}
printf("current idx = %d \n", tsidx);
printf("Highest latency %d pkt no.%d total=%d\n", maxdelay, maxdelaypktno, tspktcnt);
printf("%08X %08X %08X %08X \t%d %d %d %d\n",
maxdelayts.t1, maxdelayts.t2, maxdelayts.t3, maxdelayts.t4,
maxdelayts.t2 - maxdelayts.t1,
maxdelayts.t3 - maxdelayts.t2,
maxdelayts.t4 - maxdelayts.t3,
maxdelayts.t4 - maxdelayts.t1);
}
static int
dhd_ioctl_htsf_get(dhd_info_t *dhd, int ifidx)
{
wl_ioctl_t ioc;
char buf[32];
int ret;
uint32 s1, s2;
struct tsf {
uint32 low;
uint32 high;
} tsf_buf;
memset(&ioc, 0, sizeof(ioc));
memset(&tsf_buf, 0, sizeof(tsf_buf));
ioc.cmd = WLC_GET_VAR;
ioc.buf = buf;
ioc.len = (uint)sizeof(buf);
ioc.set = FALSE;
strcpy(buf, "tsf");
s1 = dhd_get_htsf(dhd, 0);
if ((ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
if (ret == -EIO) {
DHD_ERROR(("%s: tsf is not supported by device\n",
dhd_ifname(&dhd->pub, ifidx)));
return -EOPNOTSUPP;
}
return ret;
}
s2 = dhd_get_htsf(dhd, 0);
memcpy(&tsf_buf, buf, sizeof(tsf_buf));
printf(" TSF_h=%04X lo=%08X Calc:htsf=%08X, coef=%d.%d%d delta=%d ",
tsf_buf.high, tsf_buf.low, s2, dhd->htsf.coef, dhd->htsf.coefdec1,
dhd->htsf.coefdec2, s2-tsf_buf.low);
printf("lasttsf=%08X lastcycle=%08X\n", dhd->htsf.last_tsf, dhd->htsf.last_cycle);
return 0;
}
void htsf_update(dhd_info_t *dhd, void *data)
{
static ulong cur_cycle = 0, prev_cycle = 0;
uint32 htsf, tsf_delta = 0;
uint32 hfactor = 0, cyc_delta, dec1 = 0, dec2, dec3, tmp;
ulong b, a;
cycles_t t;
/* cycles_t in inlcude/mips/timex.h */
t = get_cycles();
prev_cycle = cur_cycle;
cur_cycle = t;
if (cur_cycle > prev_cycle)
cyc_delta = cur_cycle - prev_cycle;
else {
b = cur_cycle;
a = prev_cycle;
cyc_delta = cur_cycle + (0xFFFFFFFF - prev_cycle);
}
if (data == NULL)
printf(" tsf update ata point er is null \n");
memcpy(&prev_tsf, &cur_tsf, sizeof(tsf_t));
memcpy(&cur_tsf, data, sizeof(tsf_t));
if (cur_tsf.low == 0) {
DHD_INFO((" ---- 0 TSF, do not update, return\n"));
return;
}
if (cur_tsf.low > prev_tsf.low)
tsf_delta = (cur_tsf.low - prev_tsf.low);
else {
DHD_INFO((" ---- tsf low is smaller cur_tsf= %08X, prev_tsf=%08X, \n",
cur_tsf.low, prev_tsf.low));
if (cur_tsf.high > prev_tsf.high) {
tsf_delta = cur_tsf.low + (0xFFFFFFFF - prev_tsf.low);
DHD_INFO((" ---- Wrap around tsf coutner adjusted TSF=%08X\n", tsf_delta));
}
else
return; /* do not update */
}
if (tsf_delta) {
hfactor = cyc_delta / tsf_delta;
tmp = (cyc_delta - (hfactor * tsf_delta))*10;
dec1 = tmp/tsf_delta;
dec2 = ((tmp - dec1*tsf_delta)*10) / tsf_delta;
tmp = (tmp - (dec1*tsf_delta))*10;
dec3 = ((tmp - dec2*tsf_delta)*10) / tsf_delta;
if (dec3 > 4) {
if (dec2 == 9) {
dec2 = 0;
if (dec1 == 9) {
dec1 = 0;
hfactor++;
}
else {
dec1++;
}
}
else
dec2++;
}
}
if (hfactor) {
htsf = ((cyc_delta * 10) / (hfactor*10+dec1)) + prev_tsf.low;
dhd->htsf.coef = hfactor;
dhd->htsf.last_cycle = cur_cycle;
dhd->htsf.last_tsf = cur_tsf.low;
dhd->htsf.coefdec1 = dec1;
dhd->htsf.coefdec2 = dec2;
}
else {
htsf = prev_tsf.low;
}
}
#endif /* WLMEDIA_HTSF */