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rt2x00: Introduce tasklets for interrupt handling 

No functional changes, just preparation for moving interrupt handling to
tasklets. The tasklets are disabled by default. Drivers making use of
them need to enable the tasklets when the device state is set to IRQ_ON.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Helmut Schaa 2011-01-30 13:17:52 +01:00 committed by John W. Linville
parent 8d59c4e993
commit c5c6576183
2 changed files with 34 additions and 0 deletions
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13
drivers/net/wireless/rt2x00/rt2x00.h
View File

@ -520,6 +520,10 @@ struct rt2x00lib_ops {
* TX status tasklet handler.
*/
void (*txstatus_tasklet) (unsigned long data);
void (*pretbtt_tasklet) (unsigned long data);
void (*tbtt_tasklet) (unsigned long data);
void (*rxdone_tasklet) (unsigned long data);
void (*autowake_tasklet) (unsigned long data);
/*
* Device init handlers.
@ -905,6 +909,15 @@ struct rt2x00_dev {
* Tasklet for processing tx status reports (rt2800pci).
*/
struct tasklet_struct txstatus_tasklet;
struct tasklet_struct pretbtt_tasklet;
struct tasklet_struct tbtt_tasklet;
struct tasklet_struct rxdone_tasklet;
struct tasklet_struct autowake_tasklet;
/*
* Protect the interrupt mask register.
*/
spinlock_t irqmask_lock;
};
/*

21
drivers/net/wireless/rt2x00/rt2x00dev.c
View File

@ -830,6 +830,26 @@ static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev)
}
/*
* Initialize tasklets if used by the driver. Tasklets are
* disabled until the interrupts are turned on. The driver
* has to handle that.
*/
#define RT2X00_TASKLET_INIT(taskletname) \
if (rt2x00dev->ops->lib->taskletname) { \
tasklet_init(&rt2x00dev->taskletname, \
rt2x00dev->ops->lib->taskletname, \
(unsigned long)rt2x00dev); \
tasklet_disable(&rt2x00dev->taskletname); \
}
RT2X00_TASKLET_INIT(pretbtt_tasklet);
RT2X00_TASKLET_INIT(tbtt_tasklet);
RT2X00_TASKLET_INIT(rxdone_tasklet);
RT2X00_TASKLET_INIT(autowake_tasklet);
#undef RT2X00_TASKLET_INIT
/*
* Register HW.
*/
@ -958,6 +978,7 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
{
int retval = -ENOMEM;
spin_lock_init(&rt2x00dev->irqmask_lock);
mutex_init(&rt2x00dev->csr_mutex);
set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);