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Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream

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This commit is contained in:
Jeff Garzik 2006-06-20 04:46:02 -04:00
commit 4b2d9cf009
13 changed files with 402 additions and 216 deletions
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100
drivers/net/wireless/bcm43xx/bcm43xx.h
View File

@ -636,6 +636,17 @@ struct bcm43xx_key {
u8 algorithm;
};
/* Driver initialization status. */
enum {
BCM43xx_STAT_UNINIT, /* Uninitialized. */
BCM43xx_STAT_INITIALIZING, /* init_board() in progress. */
BCM43xx_STAT_INITIALIZED, /* Fully operational. */
BCM43xx_STAT_SHUTTINGDOWN, /* free_board() in progress. */
BCM43xx_STAT_RESTARTING, /* controller_restart() called. */
};
#define bcm43xx_status(bcm) atomic_read(&(bcm)->init_status)
#define bcm43xx_set_status(bcm, stat) atomic_set(&(bcm)->init_status, (stat))
struct bcm43xx_private {
struct ieee80211_device *ieee;
struct ieee80211softmac_device *softmac;
@ -646,18 +657,17 @@ struct bcm43xx_private {
void __iomem *mmio_addr;
/* Do not use the lock directly. Use the bcm43xx_lock* helper
* functions, to be MMIO-safe. */
spinlock_t _lock;
/* Locking, see "theory of locking" text below. */
spinlock_t irq_lock;
struct mutex mutex;
/* Driver status flags. */
u32 initialized:1, /* init_board() succeed */
was_initialized:1, /* for PCI suspend/resume. */
shutting_down:1, /* free_board() in progress */
/* Driver initialization status BCM43xx_STAT_*** */
atomic_t init_status;
u16 was_initialized:1, /* for PCI suspend/resume. */
__using_pio:1, /* Internal, use bcm43xx_using_pio(). */
bad_frames_preempt:1, /* Use "Bad Frames Preemption" (default off) */
reg124_set_0x4:1, /* Some variable to keep track of IRQ stuff. */
powersaving:1, /* TRUE if we are in PowerSaving mode. FALSE otherwise. */
short_preamble:1, /* TRUE, if short preamble is enabled. */
firmware_norelease:1; /* Do not release the firmware. Used on suspend. */
@ -721,7 +731,7 @@ struct bcm43xx_private {
struct tasklet_struct isr_tasklet;
/* Periodic tasks */
struct timer_list periodic_tasks;
struct work_struct periodic_work;
unsigned int periodic_state;
struct work_struct restart_work;
@ -746,21 +756,55 @@ struct bcm43xx_private {
#endif
};
/* bcm43xx_(un)lock() protect struct bcm43xx_private.
* Note that _NO_ MMIO writes are allowed. If you want to
* write to the device through MMIO in the critical section, use
* the *_mmio lock functions.
* MMIO read-access is allowed, though.
/* *** THEORY OF LOCKING ***
*
* We have two different locks in the bcm43xx driver.
* => bcm->mutex: General sleeping mutex. Protects struct bcm43xx_private
* and the device registers.
* => bcm->irq_lock: IRQ spinlock. Protects against IRQ handler concurrency.
*
* We have three types of helper function pairs to utilize these locks.
* (Always use the helper functions.)
* 1) bcm43xx_{un}lock_noirq():
* Takes bcm->mutex. Does _not_ protect against IRQ concurrency,
* so it is almost always unsafe, if device IRQs are enabled.
* So only use this, if device IRQs are masked.
* Locking may sleep.
* You can sleep within the critical section.
* 2) bcm43xx_{un}lock_irqonly():
* Takes bcm->irq_lock. Does _not_ protect against
* bcm43xx_lock_noirq() critical sections.
* Does only protect against the IRQ handler path and other
* irqonly() critical sections.
* Locking does not sleep.
* You must not sleep within the critical section.
* 3) bcm43xx_{un}lock_irqsafe():
* This is the cummulative lock and takes both, mutex and irq_lock.
* Protects against noirq() and irqonly() critical sections (and
* the IRQ handler path).
* Locking may sleep.
* You must not sleep within the critical section.
*/
#define bcm43xx_lock(bcm, flags) spin_lock_irqsave(&(bcm)->_lock, flags)
#define bcm43xx_unlock(bcm, flags) spin_unlock_irqrestore(&(bcm)->_lock, flags)
/* bcm43xx_(un)lock_mmio() protect struct bcm43xx_private and MMIO.
* MMIO write-access to the device is allowed.
* All MMIO writes are flushed on unlock, so it is guaranteed to not
* interfere with other threads writing MMIO registers.
*/
#define bcm43xx_lock_mmio(bcm, flags) bcm43xx_lock(bcm, flags)
#define bcm43xx_unlock_mmio(bcm, flags) do { mmiowb(); bcm43xx_unlock(bcm, flags); } while (0)
/* Lock type 1 */
#define bcm43xx_lock_noirq(bcm) mutex_lock(&(bcm)->mutex)
#define bcm43xx_unlock_noirq(bcm) mutex_unlock(&(bcm)->mutex)
/* Lock type 2 */
#define bcm43xx_lock_irqonly(bcm, flags) \
spin_lock_irqsave(&(bcm)->irq_lock, flags)
#define bcm43xx_unlock_irqonly(bcm, flags) \
spin_unlock_irqrestore(&(bcm)->irq_lock, flags)
/* Lock type 3 */
#define bcm43xx_lock_irqsafe(bcm, flags) do { \
bcm43xx_lock_noirq(bcm); \
bcm43xx_lock_irqonly(bcm, flags); \
} while (0)
#define bcm43xx_unlock_irqsafe(bcm, flags) do { \
bcm43xx_unlock_irqonly(bcm, flags); \
bcm43xx_unlock_noirq(bcm); \
} while (0)
static inline
struct bcm43xx_private * bcm43xx_priv(struct net_device *dev)
@ -843,16 +887,6 @@ struct bcm43xx_radioinfo * bcm43xx_current_radio(struct bcm43xx_private *bcm)
return &(bcm->core_80211_ext[bcm->current_80211_core_idx].radio);
}
/* Are we running in init_board() context? */
static inline
int bcm43xx_is_initializing(struct bcm43xx_private *bcm)
{
if (bcm->initialized)
return 0;
if (bcm->shutting_down)
return 0;
return 1;
}
static inline
struct bcm43xx_lopair * bcm43xx_get_lopair(struct bcm43xx_phyinfo *phy,

33
drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c
View File

@ -77,8 +77,8 @@ static ssize_t devinfo_read_file(struct file *file, char __user *userbuf,
down(&big_buffer_sem);
bcm43xx_lock_mmio(bcm, flags);
if (!bcm->initialized) {
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED) {
fappend("Board not initialized.\n");
goto out;
}
@ -121,7 +121,7 @@ static ssize_t devinfo_read_file(struct file *file, char __user *userbuf,
fappend("\n");
out:
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
up(&big_buffer_sem);
return res;
@ -159,8 +159,8 @@ static ssize_t spromdump_read_file(struct file *file, char __user *userbuf,
unsigned long flags;
down(&big_buffer_sem);
bcm43xx_lock_mmio(bcm, flags);
if (!bcm->initialized) {
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED) {
fappend("Board not initialized.\n");
goto out;
}
@ -169,7 +169,7 @@ static ssize_t spromdump_read_file(struct file *file, char __user *userbuf,
fappend("boardflags: 0x%04x\n", bcm->sprom.boardflags);
out:
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
up(&big_buffer_sem);
return res;
@ -188,8 +188,8 @@ static ssize_t tsf_read_file(struct file *file, char __user *userbuf,
u64 tsf;
down(&big_buffer_sem);
bcm43xx_lock_mmio(bcm, flags);
if (!bcm->initialized) {
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED) {
fappend("Board not initialized.\n");
goto out;
}
@ -199,7 +199,7 @@ static ssize_t tsf_read_file(struct file *file, char __user *userbuf,
(unsigned int)(tsf & 0xFFFFFFFFULL));
out:
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
up(&big_buffer_sem);
return res;
@ -221,8 +221,8 @@ static ssize_t tsf_write_file(struct file *file, const char __user *user_buf,
res = -EFAULT;
goto out_up;
}
bcm43xx_lock_mmio(bcm, flags);
if (!bcm->initialized) {
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED) {
printk(KERN_INFO PFX "debugfs: Board not initialized.\n");
res = -EFAULT;
goto out_unlock;
@ -233,10 +233,11 @@ static ssize_t tsf_write_file(struct file *file, const char __user *user_buf,
goto out_unlock;
}
bcm43xx_tsf_write(bcm, tsf);
mmiowb();
res = buf_size;
out_unlock:
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
out_up:
up(&big_buffer_sem);
return res;
@ -257,7 +258,7 @@ static ssize_t txstat_read_file(struct file *file, char __user *userbuf,
int i, cnt, j = 0;
down(&big_buffer_sem);
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
fappend("Last %d logged xmitstatus blobs (Latest first):\n\n",
BCM43xx_NR_LOGGED_XMITSTATUS);
@ -293,14 +294,14 @@ static ssize_t txstat_read_file(struct file *file, char __user *userbuf,
i = BCM43xx_NR_LOGGED_XMITSTATUS - 1;
}
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
if (*ppos == pos) {
/* Done. Drop the copied data. */
e->xmitstatus_printing = 0;
}
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
up(&big_buffer_sem);
return res;
}

4
drivers/net/wireless/bcm43xx/bcm43xx_leds.c
View File

@ -51,12 +51,12 @@ static void bcm43xx_led_blink(unsigned long d)
struct bcm43xx_private *bcm = led->bcm;
unsigned long flags;
bcm43xx_lock_mmio(bcm, flags);
bcm43xx_lock_irqonly(bcm, flags);
if (led->blink_interval) {
bcm43xx_led_changestate(led);
mod_timer(&led->blink_timer, jiffies + led->blink_interval);
}
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqonly(bcm, flags);
}
static void bcm43xx_led_blink_start(struct bcm43xx_led *led,

221
drivers/net/wireless/bcm43xx/bcm43xx_main.c
View File

@ -498,20 +498,31 @@ static inline u32 bcm43xx_interrupt_disable(struct bcm43xx_private *bcm, u32 mas
return old_mask;
}
/* Synchronize IRQ top- and bottom-half.
* IRQs must be masked before calling this.
* This must not be called with the irq_lock held.
*/
static void bcm43xx_synchronize_irq(struct bcm43xx_private *bcm)
{
synchronize_irq(bcm->irq);
tasklet_disable(&bcm->isr_tasklet);
}
/* Make sure we don't receive more data from the device. */
static int bcm43xx_disable_interrupts_sync(struct bcm43xx_private *bcm, u32 *oldstate)
{
u32 old;
unsigned long flags;
u32 old;
bcm43xx_lock_mmio(bcm, flags);
if (bcm43xx_is_initializing(bcm) || bcm->shutting_down) {
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_lock_irqonly(bcm, flags);
if (unlikely(bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)) {
bcm43xx_unlock_irqonly(bcm, flags);
return -EBUSY;
}
old = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
tasklet_disable(&bcm->isr_tasklet);
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqonly(bcm, flags);
bcm43xx_synchronize_irq(bcm);
if (oldstate)
*oldstate = old;
@ -1389,7 +1400,7 @@ void bcm43xx_wireless_core_reset(struct bcm43xx_private *bcm, int connect_phy)
bcm43xx_dmacontroller_rx_reset(bcm, BCM43xx_MMIO_DMA4_BASE);
#endif
}
if (bcm->shutting_down) {
if (bcm43xx_status(bcm) == BCM43xx_STAT_SHUTTINGDOWN) {
bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
& ~(BCM43xx_SBF_MAC_ENABLED | 0x00000002));
@ -1709,7 +1720,7 @@ static void bcm43xx_interrupt_tasklet(struct bcm43xx_private *bcm)
# define bcmirq_handled(irq) do { /* nothing */ } while (0)
#endif /* CONFIG_BCM43XX_DEBUG*/
bcm43xx_lock_mmio(bcm, flags);
bcm43xx_lock_irqonly(bcm, flags);
reason = bcm->irq_reason;
dma_reason[0] = bcm->dma_reason[0];
dma_reason[1] = bcm->dma_reason[1];
@ -1734,7 +1745,8 @@ static void bcm43xx_interrupt_tasklet(struct bcm43xx_private *bcm)
dma_reason[0], dma_reason[1],
dma_reason[2], dma_reason[3]);
bcm43xx_controller_restart(bcm, "DMA error");
bcm43xx_unlock_mmio(bcm, flags);
mmiowb();
bcm43xx_unlock_irqonly(bcm, flags);
return;
}
if (unlikely((dma_reason[0] & BCM43xx_DMAIRQ_NONFATALMASK) |
@ -1821,7 +1833,8 @@ static void bcm43xx_interrupt_tasklet(struct bcm43xx_private *bcm)
if (!modparam_noleds)
bcm43xx_leds_update(bcm, activity);
bcm43xx_interrupt_enable(bcm, bcm->irq_savedstate);
bcm43xx_unlock_mmio(bcm, flags);
mmiowb();
bcm43xx_unlock_irqonly(bcm, flags);
}
static void pio_irq_workaround(struct bcm43xx_private *bcm,
@ -1870,7 +1883,7 @@ static irqreturn_t bcm43xx_interrupt_handler(int irq, void *dev_id, struct pt_re
if (!bcm)
return IRQ_NONE;
spin_lock(&bcm->_lock);
spin_lock(&bcm->irq_lock);
reason = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON);
if (reason == 0xffffffff) {
@ -1899,7 +1912,7 @@ static irqreturn_t bcm43xx_interrupt_handler(int irq, void *dev_id, struct pt_re
* completely, but some careful work is needed to fix this. I think it
* is best to stay with this cheap workaround for now... .
*/
if (likely(bcm->initialized)) {
if (likely(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)) {
/* disable all IRQs. They are enabled again in the bottom half. */
bcm->irq_savedstate = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
/* save the reason code and call our bottom half. */
@ -1909,7 +1922,7 @@ static irqreturn_t bcm43xx_interrupt_handler(int irq, void *dev_id, struct pt_re
out:
mmiowb();
spin_unlock(&bcm->_lock);
spin_unlock(&bcm->irq_lock);
return ret;
}
@ -2133,6 +2146,13 @@ out:
return err;
}
#ifdef CONFIG_BCM947XX
static struct pci_device_id bcm43xx_47xx_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4324) },
{ 0 }
};
#endif
static int bcm43xx_initialize_irq(struct bcm43xx_private *bcm)
{
int res;
@ -2142,11 +2162,15 @@ static int bcm43xx_initialize_irq(struct bcm43xx_private *bcm)
bcm->irq = bcm->pci_dev->irq;
#ifdef CONFIG_BCM947XX
if (bcm->pci_dev->bus->number == 0) {
struct pci_dev *d = NULL;
/* FIXME: we will probably need more device IDs here... */
d = pci_find_device(PCI_VENDOR_ID_BROADCOM, 0x4324, NULL);
if (d != NULL) {
bcm->irq = d->irq;
struct pci_dev *d;
struct pci_device_id *id;
for (id = bcm43xx_47xx_ids; id->vendor; id++) {
d = pci_get_device(id->vendor, id->device, NULL);
if (d != NULL) {
bcm->irq = d->irq;
pci_dev_put(d);
break;
}
}
}
#endif
@ -3106,15 +3130,10 @@ static void bcm43xx_periodic_every15sec(struct bcm43xx_private *bcm)
//TODO for APHY (temperature?)
}
static void bcm43xx_periodic_task_handler(unsigned long d)
static void do_periodic_work(struct bcm43xx_private *bcm)
{
struct bcm43xx_private *bcm = (struct bcm43xx_private *)d;
unsigned long flags;
unsigned int state;
bcm43xx_lock_mmio(bcm, flags);
assert(bcm->initialized);
state = bcm->periodic_state;
if (state % 8 == 0)
bcm43xx_periodic_every120sec(bcm);
@ -3122,29 +3141,93 @@ static void bcm43xx_periodic_task_handler(unsigned long d)
bcm43xx_periodic_every60sec(bcm);
if (state % 2 == 0)
bcm43xx_periodic_every30sec(bcm);
bcm43xx_periodic_every15sec(bcm);
if (state % 1 == 0)
bcm43xx_periodic_every15sec(bcm);
bcm->periodic_state = state + 1;
mod_timer(&bcm->periodic_tasks, jiffies + (HZ * 15));
schedule_delayed_work(&bcm->periodic_work, HZ * 15);
}
bcm43xx_unlock_mmio(bcm, flags);
/* Estimate a "Badness" value based on the periodic work
* state-machine state. "Badness" is worse (bigger), if the
* periodic work will take longer.
*/
static int estimate_periodic_work_badness(unsigned int state)
{
int badness = 0;
if (state % 8 == 0) /* every 120 sec */
badness += 10;
if (state % 4 == 0) /* every 60 sec */
badness += 5;
if (state % 2 == 0) /* every 30 sec */
badness += 1;
if (state % 1 == 0) /* every 15 sec */
badness += 1;
#define BADNESS_LIMIT 4
return badness;
}
static void bcm43xx_periodic_work_handler(void *d)
{
struct bcm43xx_private *bcm = d;
unsigned long flags;
u32 savedirqs = 0;
int badness;
badness = estimate_periodic_work_badness(bcm->periodic_state);
if (badness > BADNESS_LIMIT) {
/* Periodic work will take a long time, so we want it to
* be preemtible.
*/
bcm43xx_lock_irqonly(bcm, flags);
netif_stop_queue(bcm->net_dev);
if (bcm43xx_using_pio(bcm))
bcm43xx_pio_freeze_txqueues(bcm);
savedirqs = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
bcm43xx_unlock_irqonly(bcm, flags);
bcm43xx_lock_noirq(bcm);
bcm43xx_synchronize_irq(bcm);
} else {
/* Periodic work should take short time, so we want low
* locking overhead.
*/
bcm43xx_lock_irqsafe(bcm, flags);
}
do_periodic_work(bcm);
if (badness > BADNESS_LIMIT) {
bcm43xx_lock_irqonly(bcm, flags);
if (likely(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)) {
tasklet_enable(&bcm->isr_tasklet);
bcm43xx_interrupt_enable(bcm, savedirqs);
if (bcm43xx_using_pio(bcm))
bcm43xx_pio_thaw_txqueues(bcm);
}
netif_wake_queue(bcm->net_dev);
mmiowb();
bcm43xx_unlock_irqonly(bcm, flags);
bcm43xx_unlock_noirq(bcm);
} else {
mmiowb();
bcm43xx_unlock_irqsafe(bcm, flags);
}
}
static void bcm43xx_periodic_tasks_delete(struct bcm43xx_private *bcm)
{
del_timer_sync(&bcm->periodic_tasks);
cancel_rearming_delayed_work(&bcm->periodic_work);
}
static void bcm43xx_periodic_tasks_setup(struct bcm43xx_private *bcm)
{
struct timer_list *timer = &(bcm->periodic_tasks);
struct work_struct *work = &(bcm->periodic_work);
assert(bcm->initialized);
setup_timer(timer,
bcm43xx_periodic_task_handler,
(unsigned long)bcm);
timer->expires = jiffies;
add_timer(timer);
assert(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED);
INIT_WORK(work, bcm43xx_periodic_work_handler, bcm);
schedule_work(work);
}
static void bcm43xx_security_init(struct bcm43xx_private *bcm)
@ -3158,16 +3241,12 @@ static void bcm43xx_security_init(struct bcm43xx_private *bcm)
static void bcm43xx_free_board(struct bcm43xx_private *bcm)
{
int i, err;
unsigned long flags;
bcm43xx_lock_noirq(bcm);
bcm43xx_sysfs_unregister(bcm);
bcm43xx_periodic_tasks_delete(bcm);
bcm43xx_lock(bcm, flags);
bcm->initialized = 0;
bcm->shutting_down = 1;
bcm43xx_unlock(bcm, flags);
bcm43xx_set_status(bcm, BCM43xx_STAT_SHUTTINGDOWN);
for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) {
if (!bcm->core_80211[i].available)
@ -3182,23 +3261,19 @@ static void bcm43xx_free_board(struct bcm43xx_private *bcm)
bcm43xx_pctl_set_crystal(bcm, 0);
bcm43xx_lock(bcm, flags);
bcm->shutting_down = 0;
bcm43xx_unlock(bcm, flags);
bcm43xx_set_status(bcm, BCM43xx_STAT_UNINIT);
bcm43xx_unlock_noirq(bcm);
}
static int bcm43xx_init_board(struct bcm43xx_private *bcm)
{
int i, err;
int connect_phy;
unsigned long flags;
might_sleep();
bcm43xx_lock(bcm, flags);
bcm->initialized = 0;
bcm->shutting_down = 0;
bcm43xx_unlock(bcm, flags);
bcm43xx_lock_noirq(bcm);
bcm43xx_set_status(bcm, BCM43xx_STAT_INITIALIZING);
err = bcm43xx_pctl_set_crystal(bcm, 1);
if (err)
@ -3265,9 +3340,7 @@ static int bcm43xx_init_board(struct bcm43xx_private *bcm)
}
/* Initialization of the board is done. Flag it as such. */
bcm43xx_lock(bcm, flags);
bcm->initialized = 1;
bcm43xx_unlock(bcm, flags);
bcm43xx_set_status(bcm, BCM43xx_STAT_INITIALIZED);
bcm43xx_periodic_tasks_setup(bcm);
bcm43xx_sysfs_register(bcm);
@ -3278,6 +3351,8 @@ static int bcm43xx_init_board(struct bcm43xx_private *bcm)
assert(err == 0);
out:
bcm43xx_unlock_noirq(bcm);
return err;
err_80211_unwind:
@ -3534,8 +3609,8 @@ static void bcm43xx_ieee80211_set_chan(struct net_device *net_dev,
struct bcm43xx_radioinfo *radio;
unsigned long flags;
bcm43xx_lock_mmio(bcm, flags);
if (bcm->initialized) {
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
bcm43xx_mac_suspend(bcm);
bcm43xx_radio_selectchannel(bcm, channel, 0);
bcm43xx_mac_enable(bcm);
@ -3543,7 +3618,7 @@ static void bcm43xx_ieee80211_set_chan(struct net_device *net_dev,
radio = bcm43xx_current_radio(bcm);
radio->initial_channel = channel;
}
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
}
/* set_security() callback in struct ieee80211_device */
@ -3557,7 +3632,7 @@ static void bcm43xx_ieee80211_set_security(struct net_device *net_dev,
dprintk(KERN_INFO PFX "set security called");
bcm43xx_lock_mmio(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
for (keyidx = 0; keyidx<WEP_KEYS; keyidx++)
if (sec->flags & (1<<keyidx)) {
@ -3587,7 +3662,8 @@ static void bcm43xx_ieee80211_set_security(struct net_device *net_dev,
dprintk(", .encrypt = %d", sec->encrypt);
}
dprintk("\n");
if (bcm->initialized && !bcm->ieee->host_encrypt) {
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED &&
!bcm->ieee->host_encrypt) {
if (secinfo->enabled) {
/* upload WEP keys to hardware */
char null_address[6] = { 0 };
@ -3621,7 +3697,7 @@ static void bcm43xx_ieee80211_set_security(struct net_device *net_dev,
} else
bcm43xx_clear_keys(bcm);
}
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
}
/* hard_start_xmit() callback in struct ieee80211_device */
@ -3633,10 +3709,10 @@ static int bcm43xx_ieee80211_hard_start_xmit(struct ieee80211_txb *txb,
int err = -ENODEV;
unsigned long flags;
bcm43xx_lock_mmio(bcm, flags);
if (likely(bcm->initialized))
bcm43xx_lock_irqonly(bcm, flags);
if (likely(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED))
err = bcm43xx_tx(bcm, txb);
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqonly(bcm, flags);
return err;
}
@ -3651,9 +3727,9 @@ static void bcm43xx_net_tx_timeout(struct net_device *net_dev)
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
bcm43xx_lock_mmio(bcm, flags);
bcm43xx_lock_irqonly(bcm, flags);
bcm43xx_controller_restart(bcm, "TX timeout");
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqonly(bcm, flags);
}
#ifdef CONFIG_NET_POLL_CONTROLLER
@ -3678,9 +3754,11 @@ static int bcm43xx_net_open(struct net_device *net_dev)
static int bcm43xx_net_stop(struct net_device *net_dev)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
int err;
ieee80211softmac_stop(net_dev);
bcm43xx_disable_interrupts_sync(bcm, NULL);
err = bcm43xx_disable_interrupts_sync(bcm, NULL);
assert(!err);
bcm43xx_free_board(bcm);
return 0;
@ -3692,6 +3770,7 @@ static int bcm43xx_init_private(struct bcm43xx_private *bcm,
{
int err;
bcm43xx_set_status(bcm, BCM43xx_STAT_UNINIT);
bcm->ieee = netdev_priv(net_dev);
bcm->softmac = ieee80211_priv(net_dev);
bcm->softmac->set_channel = bcm43xx_ieee80211_set_chan;
@ -3700,7 +3779,8 @@ static int bcm43xx_init_private(struct bcm43xx_private *bcm,
bcm->pci_dev = pci_dev;
bcm->net_dev = net_dev;
bcm->bad_frames_preempt = modparam_bad_frames_preempt;
spin_lock_init(&bcm->_lock);
spin_lock_init(&bcm->irq_lock);
mutex_init(&bcm->mutex);
tasklet_init(&bcm->isr_tasklet,
(void (*)(unsigned long))bcm43xx_interrupt_tasklet,
(unsigned long)bcm);
@ -3831,7 +3911,7 @@ static void bcm43xx_chip_reset(void *_bcm)
struct net_device *net_dev = bcm->net_dev;
struct pci_dev *pci_dev = bcm->pci_dev;
int err;
int was_initialized = bcm->initialized;
int was_initialized = (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED);
netif_stop_queue(bcm->net_dev);
tasklet_disable(&bcm->isr_tasklet);
@ -3866,6 +3946,7 @@ failure:
*/
void bcm43xx_controller_restart(struct bcm43xx_private *bcm, const char *reason)
{
bcm43xx_set_status(bcm, BCM43xx_STAT_RESTARTING);
bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); /* dummy read */
printk(KERN_ERR PFX "Controller RESET (%s) ...\n", reason);
@ -3884,11 +3965,11 @@ static int bcm43xx_suspend(struct pci_dev *pdev, pm_message_t state)
dprintk(KERN_INFO PFX "Suspending...\n");
bcm43xx_lock(bcm, flags);
bcm->was_initialized = bcm->initialized;
if (bcm->initialized)
bcm43xx_lock_irqsafe(bcm, flags);
bcm->was_initialized = (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED);
if (bcm->was_initialized)
try_to_shutdown = 1;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
netif_device_detach(net_dev);
if (try_to_shutdown) {

9
drivers/net/wireless/bcm43xx/bcm43xx_phy.c
View File

@ -1410,7 +1410,10 @@ static inline
u16 bcm43xx_phy_lo_g_deviation_subval(struct bcm43xx_private *bcm, u16 control)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
u16 ret;
unsigned long flags;
local_irq_save(flags);
if (phy->connected) {
bcm43xx_phy_write(bcm, 0x15, 0xE300);
control <<= 8;
@ -1430,8 +1433,10 @@ u16 bcm43xx_phy_lo_g_deviation_subval(struct bcm43xx_private *bcm, u16 control)
bcm43xx_phy_write(bcm, 0x0015, control | 0xFFE0);
udelay(8);
}
ret = bcm43xx_phy_read(bcm, 0x002D);
local_irq_restore(flags);
return bcm43xx_phy_read(bcm, 0x002D);
return ret;
}
static u32 bcm43xx_phy_lo_g_singledeviation(struct bcm43xx_private *bcm, u16 control)
@ -1648,7 +1653,7 @@ void bcm43xx_phy_set_baseband_attenuation(struct bcm43xx_private *bcm,
void bcm43xx_phy_lo_g_measure(struct bcm43xx_private *bcm)
{
static const u8 pairorder[10] = { 3, 1, 5, 7, 9, 2, 0, 4, 6, 8 };
const int is_initializing = bcm43xx_is_initializing(bcm);
const int is_initializing = (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZING);
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 h, i, oldi = 0, j;

44
drivers/net/wireless/bcm43xx/bcm43xx_pio.c
View File

@ -262,8 +262,10 @@ static void tx_tasklet(unsigned long d)
int err;
u16 txctl;
bcm43xx_lock_mmio(bcm, flags);
bcm43xx_lock_irqonly(bcm, flags);
if (queue->tx_frozen)
goto out_unlock;
txctl = bcm43xx_pio_read(queue, BCM43xx_PIO_TXCTL);
if (txctl & BCM43xx_PIO_TXCTL_SUSPEND)
goto out_unlock;
@ -298,7 +300,7 @@ static void tx_tasklet(unsigned long d)
continue;
}
out_unlock:
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqonly(bcm, flags);
}
static void setup_txqueues(struct bcm43xx_pioqueue *queue)
@ -374,7 +376,6 @@ static void cancel_transfers(struct bcm43xx_pioqueue *queue)
struct bcm43xx_pio_txpacket *packet, *tmp_packet;
netif_tx_disable(queue->bcm->net_dev);
assert(queue->bcm->shutting_down);
tasklet_disable(&queue->txtask);
list_for_each_entry_safe(packet, tmp_packet, &queue->txrunning, list)
@ -634,5 +635,40 @@ void bcm43xx_pio_tx_resume(struct bcm43xx_pioqueue *queue)
bcm43xx_pio_read(queue, BCM43xx_PIO_TXCTL)
& ~BCM43xx_PIO_TXCTL_SUSPEND);
bcm43xx_power_saving_ctl_bits(queue->bcm, -1, -1);
tasklet_schedule(&queue->txtask);
if (!list_empty(&queue->txqueue))
tasklet_schedule(&queue->txtask);
}
void bcm43xx_pio_freeze_txqueues(struct bcm43xx_private *bcm)
{
struct bcm43xx_pio *pio;
assert(bcm43xx_using_pio(bcm));
pio = bcm43xx_current_pio(bcm);
pio->queue0->tx_frozen = 1;
pio->queue1->tx_frozen = 1;
pio->queue2->tx_frozen = 1;
pio->queue3->tx_frozen = 1;
}
void bcm43xx_pio_thaw_txqueues(struct bcm43xx_private *bcm)
{
struct bcm43xx_pio *pio;
assert(bcm43xx_using_pio(bcm));
pio = bcm43xx_current_pio(bcm);
pio->queue0->tx_frozen = 0;
pio->queue1->tx_frozen = 0;
pio->queue2->tx_frozen = 0;
pio->queue3->tx_frozen = 0;
if (!list_empty(&pio->queue0->txqueue))
tasklet_schedule(&pio->queue0->txtask);
if (!list_empty(&pio->queue1->txqueue))
tasklet_schedule(&pio->queue1->txtask);
if (!list_empty(&pio->queue2->txqueue))
tasklet_schedule(&pio->queue2->txtask);
if (!list_empty(&pio->queue3->txqueue))
tasklet_schedule(&pio->queue3->txtask);
}

13
drivers/net/wireless/bcm43xx/bcm43xx_pio.h
View File

@ -54,6 +54,7 @@ struct bcm43xx_pioqueue {
u16 mmio_base;
u8 tx_suspended:1,
tx_frozen:1,
need_workarounds:1; /* Workarounds needed for core.rev < 3 */
/* Adjusted size of the device internal TX buffer. */
@ -108,8 +109,12 @@ void bcm43xx_pio_handle_xmitstatus(struct bcm43xx_private *bcm,
struct bcm43xx_xmitstatus *status);
void bcm43xx_pio_rx(struct bcm43xx_pioqueue *queue);
/* Suspend a TX queue on hardware level. */
void bcm43xx_pio_tx_suspend(struct bcm43xx_pioqueue *queue);
void bcm43xx_pio_tx_resume(struct bcm43xx_pioqueue *queue);
/* Suspend (freeze) the TX tasklet (software level). */
void bcm43xx_pio_freeze_txqueues(struct bcm43xx_private *bcm);
void bcm43xx_pio_thaw_txqueues(struct bcm43xx_private *bcm);
#else /* CONFIG_BCM43XX_PIO */
@ -145,6 +150,14 @@ static inline
void bcm43xx_pio_tx_resume(struct bcm43xx_pioqueue *queue)
{
}
static inline
void bcm43xx_pio_freeze_txqueues(struct bcm43xx_private *bcm)
{
}
static inline
void bcm43xx_pio_thaw_txqueues(struct bcm43xx_private *bcm)
{
}
#endif /* CONFIG_BCM43XX_PIO */
#endif /* BCM43xx_PIO_H_ */

38
drivers/net/wireless/bcm43xx/bcm43xx_sysfs.c
View File

@ -120,12 +120,12 @@ static ssize_t bcm43xx_attr_sprom_show(struct device *dev,
GFP_KERNEL);
if (!sprom)
return -ENOMEM;
bcm43xx_lock_mmio(bcm, flags);
assert(bcm->initialized);
bcm43xx_lock_irqsafe(bcm, flags);
err = bcm43xx_sprom_read(bcm, sprom);
if (!err)
err = sprom2hex(sprom, buf, PAGE_SIZE);
bcm43xx_unlock_mmio(bcm, flags);
mmiowb();
bcm43xx_unlock_irqsafe(bcm, flags);
kfree(sprom);
return err;
@ -150,10 +150,10 @@ static ssize_t bcm43xx_attr_sprom_store(struct device *dev,
err = hex2sprom(sprom, buf, count);
if (err)
goto out_kfree;
bcm43xx_lock_mmio(bcm, flags);
assert(bcm->initialized);
bcm43xx_lock_irqsafe(bcm, flags);
err = bcm43xx_sprom_write(bcm, sprom);
bcm43xx_unlock_mmio(bcm, flags);
mmiowb();
bcm43xx_unlock_irqsafe(bcm, flags);
out_kfree:
kfree(sprom);
@ -170,15 +170,13 @@ static ssize_t bcm43xx_attr_interfmode_show(struct device *dev,
char *buf)
{
struct bcm43xx_private *bcm = dev_to_bcm(dev);
unsigned long flags;
int err;
ssize_t count = 0;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
bcm43xx_lock(bcm, flags);
assert(bcm->initialized);
bcm43xx_lock_noirq(bcm);
switch (bcm43xx_current_radio(bcm)->interfmode) {
case BCM43xx_RADIO_INTERFMODE_NONE:
@ -195,7 +193,7 @@ static ssize_t bcm43xx_attr_interfmode_show(struct device *dev,
}
err = 0;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_noirq(bcm);
return err ? err : count;
@ -231,16 +229,15 @@ static ssize_t bcm43xx_attr_interfmode_store(struct device *dev,
return -EINVAL;
}
bcm43xx_lock_mmio(bcm, flags);
assert(bcm->initialized);
bcm43xx_lock_irqsafe(bcm, flags);
err = bcm43xx_radio_set_interference_mitigation(bcm, mode);
if (err) {
printk(KERN_ERR PFX "Interference Mitigation not "
"supported by device\n");
}
bcm43xx_unlock_mmio(bcm, flags);
mmiowb();
bcm43xx_unlock_irqsafe(bcm, flags);
return err ? err : count;
}
@ -254,15 +251,13 @@ static ssize_t bcm43xx_attr_preamble_show(struct device *dev,
char *buf)
{
struct bcm43xx_private *bcm = dev_to_bcm(dev);
unsigned long flags;
int err;
ssize_t count;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
bcm43xx_lock(bcm, flags);
assert(bcm->initialized);
bcm43xx_lock_noirq(bcm);
if (bcm->short_preamble)
count = snprintf(buf, PAGE_SIZE, "1 (Short Preamble enabled)\n");
@ -270,7 +265,7 @@ static ssize_t bcm43xx_attr_preamble_show(struct device *dev,
count = snprintf(buf, PAGE_SIZE, "0 (Short Preamble disabled)\n");
err = 0;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_noirq(bcm);
return err ? err : count;
}
@ -290,13 +285,12 @@ static ssize_t bcm43xx_attr_preamble_store(struct device *dev,
value = get_boolean(buf, count);
if (value < 0)
return value;
bcm43xx_lock(bcm, flags);
assert(bcm->initialized);
bcm43xx_lock_irqsafe(bcm, flags);
bcm->short_preamble = !!value;
err = 0;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return err ? err : count;
}
@ -310,7 +304,7 @@ int bcm43xx_sysfs_register(struct bcm43xx_private *bcm)
struct device *dev = &bcm->pci_dev->dev;
int err;
assert(bcm->initialized);
assert(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED);
err = device_create_file(dev, &dev_attr_sprom);
if (err)

107
drivers/net/wireless/bcm43xx/bcm43xx_wx.c
View File

@ -55,13 +55,13 @@ static int bcm43xx_wx_get_name(struct net_device *net_dev,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
int i;
unsigned long flags;
struct bcm43xx_phyinfo *phy;
char suffix[7] = { 0 };
int have_a = 0, have_b = 0, have_g = 0;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
for (i = 0; i < bcm->nr_80211_available; i++) {
phy = &(bcm->core_80211_ext[i].phy);
switch (phy->type) {
@ -77,7 +77,7 @@ static int bcm43xx_wx_get_name(struct net_device *net_dev,
assert(0);
}
}
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
i = 0;
if (have_a) {
@ -111,7 +111,7 @@ static int bcm43xx_wx_set_channelfreq(struct net_device *net_dev,
int freq;
int err = -EINVAL;
bcm43xx_lock_mmio(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
if ((data->freq.m >= 0) && (data->freq.m <= 1000)) {
channel = data->freq.m;
freq = bcm43xx_channel_to_freq(bcm, channel);
@ -121,7 +121,7 @@ static int bcm43xx_wx_set_channelfreq(struct net_device *net_dev,
}
if (!bcm43xx_is_valid_channel(bcm, channel))
goto out_unlock;
if (bcm->initialized) {
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
//ieee80211softmac_disassoc(softmac, $REASON);
bcm43xx_mac_suspend(bcm);
err = bcm43xx_radio_selectchannel(bcm, channel, 0);
@ -131,7 +131,7 @@ static int bcm43xx_wx_set_channelfreq(struct net_device *net_dev,
err = 0;
}
out_unlock:
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
@ -147,11 +147,10 @@ static int bcm43xx_wx_get_channelfreq(struct net_device *net_dev,
int err = -ENODEV;
u16 channel;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
radio = bcm43xx_current_radio(bcm);
channel = radio->channel;
if (channel == 0xFF) {
assert(!bcm->initialized);
channel = radio->initial_channel;
if (channel == 0xFF)
goto out_unlock;
@ -163,7 +162,7 @@ static int bcm43xx_wx_get_channelfreq(struct net_device *net_dev,
err = 0;
out_unlock:
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
@ -181,13 +180,13 @@ static int bcm43xx_wx_set_mode(struct net_device *net_dev,
if (mode == IW_MODE_AUTO)
mode = BCM43xx_INITIAL_IWMODE;
bcm43xx_lock_mmio(bcm, flags);
if (bcm->initialized) {
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
if (bcm->ieee->iw_mode != mode)
bcm43xx_set_iwmode(bcm, mode);
} else
bcm->ieee->iw_mode = mode;
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
@ -200,9 +199,9 @@ static int bcm43xx_wx_get_mode(struct net_device *net_dev,
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
data->mode = bcm->ieee->iw_mode;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
@ -255,7 +254,7 @@ static int bcm43xx_wx_get_rangeparams(struct net_device *net_dev,
IW_ENC_CAPA_CIPHER_TKIP |
IW_ENC_CAPA_CIPHER_CCMP;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
phy = bcm43xx_current_phy(bcm);
range->num_bitrates = 0;
@ -302,7 +301,7 @@ static int bcm43xx_wx_get_rangeparams(struct net_device *net_dev,
}
range->num_frequency = j;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
@ -313,14 +312,13 @@ static int bcm43xx_wx_set_nick(struct net_device *net_dev,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
size_t len;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_noirq(bcm);
len = min((size_t)data->data.length, (size_t)IW_ESSID_MAX_SIZE);
memcpy(bcm->nick, extra, len);
bcm->nick[len] = '\0';
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_noirq(bcm);
return 0;
}
@ -331,15 +329,14 @@ static int bcm43xx_wx_get_nick(struct net_device *net_dev,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
size_t len;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_noirq(bcm);
len = strlen(bcm->nick) + 1;
memcpy(extra, bcm->nick, len);
data->data.length = (__u16)len;
data->data.flags = 1;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_noirq(bcm);
return 0;
}
@ -353,7 +350,7 @@ static int bcm43xx_wx_set_rts(struct net_device *net_dev,
unsigned long flags;
int err = -EINVAL;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
if (data->rts.disabled) {
bcm->rts_threshold = BCM43xx_MAX_RTS_THRESHOLD;
err = 0;
@ -364,7 +361,7 @@ static int bcm43xx_wx_set_rts(struct net_device *net_dev,
err = 0;
}
}
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
@ -377,11 +374,11 @@ static int bcm43xx_wx_get_rts(struct net_device *net_dev,
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
data->rts.value = bcm->rts_threshold;
data->rts.fixed = 0;
data->rts.disabled = (bcm->rts_threshold == BCM43xx_MAX_RTS_THRESHOLD);
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
@ -395,7 +392,7 @@ static int bcm43xx_wx_set_frag(struct net_device *net_dev,
unsigned long flags;
int err = -EINVAL;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
if (data->frag.disabled) {
bcm->ieee->fts = MAX_FRAG_THRESHOLD;
err = 0;
@ -406,7 +403,7 @@ static int bcm43xx_wx_set_frag(struct net_device *net_dev,
err = 0;
}
}
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
@ -419,11 +416,11 @@ static int bcm43xx_wx_get_frag(struct net_device *net_dev,
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
data->frag.value = bcm->ieee->fts;
data->frag.fixed = 0;
data->frag.disabled = (bcm->ieee->fts == MAX_FRAG_THRESHOLD);
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
@ -445,8 +442,8 @@ static int bcm43xx_wx_set_xmitpower(struct net_device *net_dev,
return -EOPNOTSUPP;
}
bcm43xx_lock_mmio(bcm, flags);
if (!bcm->initialized)
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)
goto out_unlock;
radio = bcm43xx_current_radio(bcm);
phy = bcm43xx_current_phy(bcm);
@ -469,7 +466,7 @@ static int bcm43xx_wx_set_xmitpower(struct net_device *net_dev,
err = 0;
out_unlock:
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
@ -484,8 +481,8 @@ static int bcm43xx_wx_get_xmitpower(struct net_device *net_dev,
unsigned long flags;
int err = -ENODEV;
bcm43xx_lock(bcm, flags);
if (!bcm->initialized)
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)
goto out_unlock;
radio = bcm43xx_current_radio(bcm);
/* desired dBm value is in Q5.2 */
@ -496,7 +493,7 @@ static int bcm43xx_wx_get_xmitpower(struct net_device *net_dev,
err = 0;
out_unlock:
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
@ -583,8 +580,8 @@ static int bcm43xx_wx_set_interfmode(struct net_device *net_dev,
return -EINVAL;
}
bcm43xx_lock_mmio(bcm, flags);
if (bcm->initialized) {
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
err = bcm43xx_radio_set_interference_mitigation(bcm, mode);
if (err) {
printk(KERN_ERR PFX "Interference Mitigation not "
@ -598,7 +595,7 @@ static int bcm43xx_wx_set_interfmode(struct net_device *net_dev,
} else
bcm43xx_current_radio(bcm)->interfmode = mode;
}
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
@ -612,9 +609,9 @@ static int bcm43xx_wx_get_interfmode(struct net_device *net_dev,
unsigned long flags;
int mode;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
mode = bcm43xx_current_radio(bcm)->interfmode;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
switch (mode) {
case BCM43xx_RADIO_INTERFMODE_NONE:
@ -644,9 +641,9 @@ static int bcm43xx_wx_set_shortpreamble(struct net_device *net_dev,
int on;
on = *((int *)extra);
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
bcm->short_preamble = !!on;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
@ -660,9 +657,9 @@ static int bcm43xx_wx_get_shortpreamble(struct net_device *net_dev,
unsigned long flags;
int on;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
on = bcm->short_preamble;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
if (on)
strncpy(extra, "1 (Short Preamble enabled)", MAX_WX_STRING);
@ -684,11 +681,11 @@ static int bcm43xx_wx_set_swencryption(struct net_device *net_dev,
on = *((int *)extra);
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
bcm->ieee->host_encrypt = !!on;
bcm->ieee->host_decrypt = !!on;
bcm->ieee->host_build_iv = !on;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
@ -702,9 +699,9 @@ static int bcm43xx_wx_get_swencryption(struct net_device *net_dev,
unsigned long flags;
int on;
bcm43xx_lock(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
on = bcm->ieee->host_encrypt;
bcm43xx_unlock(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
if (on)
strncpy(extra, "1 (SW encryption enabled) ", MAX_WX_STRING);
@ -767,11 +764,11 @@ static int bcm43xx_wx_sprom_read(struct net_device *net_dev,
if (!sprom)
goto out;
bcm43xx_lock_mmio(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
err = -ENODEV;
if (bcm->initialized)
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)
err = bcm43xx_sprom_read(bcm, sprom);
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
if (!err)
data->data.length = sprom2hex(sprom, extra);
kfree(sprom);
@ -812,11 +809,11 @@ static int bcm43xx_wx_sprom_write(struct net_device *net_dev,
if (err)
goto out_kfree;
bcm43xx_lock_mmio(bcm, flags);
bcm43xx_lock_irqsafe(bcm, flags);
err = -ENODEV;
if (bcm->initialized)
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)
err = bcm43xx_sprom_write(bcm, sprom);
bcm43xx_unlock_mmio(bcm, flags);
bcm43xx_unlock_irqsafe(bcm, flags);
out_kfree:
kfree(sprom);
out:

41
drivers/net/wireless/ipw2200.c
View File

@ -533,7 +533,7 @@ static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask)
ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask);
}
static inline void ipw_enable_interrupts(struct ipw_priv *priv)
static inline void __ipw_enable_interrupts(struct ipw_priv *priv)
{
if (priv->status & STATUS_INT_ENABLED)
return;
@ -541,7 +541,7 @@ static inline void ipw_enable_interrupts(struct ipw_priv *priv)
ipw_write32(priv, IPW_INTA_MASK_R, IPW_INTA_MASK_ALL);
}
static inline void ipw_disable_interrupts(struct ipw_priv *priv)
static inline void __ipw_disable_interrupts(struct ipw_priv *priv)
{
if (!(priv->status & STATUS_INT_ENABLED))
return;
@ -549,6 +549,24 @@ static inline void ipw_disable_interrupts(struct ipw_priv *priv)
ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
}
static inline void ipw_enable_interrupts(struct ipw_priv *priv)
{
unsigned long flags;
spin_lock_irqsave(&priv->irq_lock, flags);
__ipw_enable_interrupts(priv);
spin_unlock_irqrestore(&priv->irq_lock, flags);
}
static inline void ipw_disable_interrupts(struct ipw_priv *priv)
{
unsigned long flags;
spin_lock_irqsave(&priv->irq_lock, flags);
__ipw_disable_interrupts(priv);
spin_unlock_irqrestore(&priv->irq_lock, flags);
}
#ifdef CONFIG_IPW2200_DEBUG
static char *ipw_error_desc(u32 val)
{
@ -1856,7 +1874,7 @@ static void ipw_irq_tasklet(struct ipw_priv *priv)
unsigned long flags;
int rc = 0;
spin_lock_irqsave(&priv->lock, flags);
spin_lock_irqsave(&priv->irq_lock, flags);
inta = ipw_read32(priv, IPW_INTA_RW);
inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
@ -1865,6 +1883,10 @@ static void ipw_irq_tasklet(struct ipw_priv *priv)
/* Add any cached INTA values that need to be handled */
inta |= priv->isr_inta;
spin_unlock_irqrestore(&priv->irq_lock, flags);
spin_lock_irqsave(&priv->lock, flags);
/* handle all the justifications for the interrupt */
if (inta & IPW_INTA_BIT_RX_TRANSFER) {
ipw_rx(priv);
@ -1993,10 +2015,10 @@ static void ipw_irq_tasklet(struct ipw_priv *priv)
IPW_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
}
spin_unlock_irqrestore(&priv->lock, flags);
/* enable all interrupts */
ipw_enable_interrupts(priv);
spin_unlock_irqrestore(&priv->lock, flags);
}
#define IPW_CMD(x) case IPW_CMD_ ## x : return #x
@ -10460,7 +10482,7 @@ static irqreturn_t ipw_isr(int irq, void *data, struct pt_regs *regs)
if (!priv)
return IRQ_NONE;
spin_lock(&priv->lock);
spin_lock(&priv->irq_lock);
if (!(priv->status & STATUS_INT_ENABLED)) {
/* Shared IRQ */
@ -10482,7 +10504,7 @@ static irqreturn_t ipw_isr(int irq, void *data, struct pt_regs *regs)
}
/* tell the device to stop sending interrupts */
ipw_disable_interrupts(priv);
__ipw_disable_interrupts(priv);
/* ack current interrupts */
inta &= (IPW_INTA_MASK_ALL & inta_mask);
@ -10493,11 +10515,11 @@ static irqreturn_t ipw_isr(int irq, void *data, struct pt_regs *regs)
tasklet_schedule(&priv->irq_tasklet);
spin_unlock(&priv->lock);
spin_unlock(&priv->irq_lock);
return IRQ_HANDLED;
none:
spin_unlock(&priv->lock);
spin_unlock(&priv->irq_lock);
return IRQ_NONE;
}
@ -11477,6 +11499,7 @@ static int ipw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
#ifdef CONFIG_IPW2200_DEBUG
ipw_debug_level = debug;
#endif
spin_lock_init(&priv->irq_lock);
spin_lock_init(&priv->lock);
for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++)
INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);

1
drivers/net/wireless/ipw2200.h
View File

@ -1173,6 +1173,7 @@ struct ipw_priv {
struct ieee80211_device *ieee;
spinlock_t lock;
spinlock_t irq_lock;
struct mutex mutex;
/* basic pci-network driver stuff */

5
include/net/ieee80211.h
View File

@ -968,6 +968,7 @@ enum ieee80211_state {
enum {
IEEE80211_CH_PASSIVE_ONLY = (1 << 0),
IEEE80211_CH_80211H_RULES = (1 << 1),
IEEE80211_CH_B_ONLY = (1 << 2),
IEEE80211_CH_NO_IBSS = (1 << 3),
IEEE80211_CH_UNIFORM_SPREADING = (1 << 4),
@ -976,10 +977,10 @@ enum {
};
struct ieee80211_channel {
u32 freq;
u32 freq; /* in MHz */
u8 channel;
u8 flags;
u8 max_power;
u8 max_power; /* in dBm */
};
struct ieee80211_geo {

2
net/ieee80211/softmac/ieee80211softmac_wx.c
View File

@ -388,7 +388,7 @@ ieee80211softmac_wx_set_genie(struct net_device *dev,
memcpy(mac->wpa.IE, extra, wrqu->data.length);
dprintk(KERN_INFO PFX "generic IE set to ");
for (i=0;i<wrqu->data.length;i++)
dprintk("%.2x", mac->wpa.IE[i]);
dprintk("%.2x", (u8)mac->wpa.IE[i]);
dprintk("\n");
mac->wpa.IElen = wrqu->data.length;
} else {