diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/iio/industrialio-trigger.c | 30 | ||||
| -rw-r--r-- | drivers/staging/iio/trigger.h | 39 |
2 files changed, 24 insertions, 45 deletions
diff --git a/drivers/staging/iio/industrialio-trigger.c b/drivers/staging/iio/industrialio-trigger.c index 72ea106..f1ece86 100644 --- a/drivers/staging/iio/industrialio-trigger.c +++ b/drivers/staging/iio/industrialio-trigger.c @@ -215,6 +215,26 @@ void iio_trigger_notify_done(struct iio_trigger *trig) EXPORT_SYMBOL(iio_trigger_notify_done); /* Trigger Consumer related functions */ +static int iio_trigger_get_irq(struct iio_trigger *trig) +{ + int ret; + mutex_lock(&trig->pool_lock); + ret = bitmap_find_free_region(trig->pool, + CONFIG_IIO_CONSUMERS_PER_TRIGGER, + ilog2(1)); + mutex_unlock(&trig->pool_lock); + if (ret >= 0) + ret += trig->subirq_base; + + return ret; +} + +static void iio_trigger_put_irq(struct iio_trigger *trig, int irq) +{ + mutex_lock(&trig->pool_lock); + clear_bit(irq - trig->subirq_base, trig->pool); + mutex_unlock(&trig->pool_lock); +} /* Complexity in here. With certain triggers (datardy) an acknowledgement * may be needed if the pollfuncs do not include the data read for the @@ -223,8 +243,8 @@ EXPORT_SYMBOL(iio_trigger_notify_done); * the relevant function is in there may be the best option. */ /* Worth protecting against double additions?*/ -int iio_trigger_attach_poll_func(struct iio_trigger *trig, - struct iio_poll_func *pf) +static int iio_trigger_attach_poll_func(struct iio_trigger *trig, + struct iio_poll_func *pf) { int ret = 0; bool notinuse @@ -241,10 +261,9 @@ int iio_trigger_attach_poll_func(struct iio_trigger *trig, return ret; } -EXPORT_SYMBOL(iio_trigger_attach_poll_func); -int iio_trigger_dettach_poll_func(struct iio_trigger *trig, - struct iio_poll_func *pf) +static int iio_trigger_dettach_poll_func(struct iio_trigger *trig, + struct iio_poll_func *pf) { int ret = 0; bool no_other_users @@ -263,7 +282,6 @@ int iio_trigger_dettach_poll_func(struct iio_trigger *trig, error_ret: return ret; } -EXPORT_SYMBOL(iio_trigger_dettach_poll_func); irqreturn_t iio_pollfunc_store_time(int irq, void *p) { diff --git a/drivers/staging/iio/trigger.h b/drivers/staging/iio/trigger.h index 56f8baf..722fc33 100644 --- a/drivers/staging/iio/trigger.h +++ b/drivers/staging/iio/trigger.h @@ -104,23 +104,6 @@ int iio_trigger_register(struct iio_trigger *trig_info); void iio_trigger_unregister(struct iio_trigger *trig_info); /** - * iio_trigger_attach_poll_func() - add a function pair to be run on trigger - * @trig: trigger to which the function pair are being added - * @pf: poll function pair - **/ -int iio_trigger_attach_poll_func(struct iio_trigger *trig, - struct iio_poll_func *pf); - -/** - * iio_trigger_dettach_poll_func() - remove function pair from those to be - * run on trigger - * @trig: trigger from which the function is being removed - * @pf: poll function pair - **/ -int iio_trigger_dettach_poll_func(struct iio_trigger *trig, - struct iio_poll_func *pf); - -/** * iio_trigger_poll() - called on a trigger occurring * @trig: trigger which occurred * @@ -129,30 +112,8 @@ int iio_trigger_dettach_poll_func(struct iio_trigger *trig, void iio_trigger_poll(struct iio_trigger *trig, s64 time); void iio_trigger_poll_chained(struct iio_trigger *trig, s64 time); - irqreturn_t iio_trigger_generic_data_rdy_poll(int irq, void *private); -static inline int iio_trigger_get_irq(struct iio_trigger *trig) -{ - int ret; - mutex_lock(&trig->pool_lock); - ret = bitmap_find_free_region(trig->pool, - CONFIG_IIO_CONSUMERS_PER_TRIGGER, - ilog2(1)); - mutex_unlock(&trig->pool_lock); - if (ret >= 0) - ret += trig->subirq_base; - - return ret; -}; - -static inline void iio_trigger_put_irq(struct iio_trigger *trig, int irq) -{ - mutex_lock(&trig->pool_lock); - clear_bit(irq - trig->subirq_base, trig->pool); - mutex_unlock(&trig->pool_lock); -}; - struct iio_trigger *iio_allocate_trigger(const char *fmt, ...) __attribute__((format(printf, 1, 2))); void iio_free_trigger(struct iio_trigger *trig); |
