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orinoco: encapsulate driver locking

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Local bus and USB drivers will need to do locking differently.

The original orinoco_usb patches had a boolean variable controlling
whether spin_lock_bh was used, or irq based locking. This version
provides wrappers for the lock functions and the drivers specify the
functions pointers needed.

This will introduce a performance penalty, but I'm not expecting it to
be noticable.

Signed-off-by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Kilroy
2010-05-01 14:05:40 +01:00
committed by John W. Linville
parent 593ef09c9e
commit bcad6e80f3
7 changed files with 60 additions and 20 deletions
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4
drivers/net/wireless/orinoco/hermes.h
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@@ -393,6 +393,10 @@ struct hermes_ops {
u16 id, u16 offset);
int (*bap_pwrite)(struct hermes *hw, int bap, const void *buf,
int len, u16 id, u16 offset);
void (*lock_irqsave)(spinlock_t *lock, unsigned long *flags);
void (*unlock_irqrestore)(spinlock_t *lock, unsigned long *flags);
void (*lock_irq)(spinlock_t *lock);
void (*unlock_irq)(spinlock_t *lock);
};
/* Basic control structure */