Merge branch 'for-linus' of git://github.com/cmetcalf-tilera/linux-tile

[~andy/linux] / drivers / staging / iio / trigger_consumer.h

diff --git a/drivers/staging/iio/trigger_consumer.h b/drivers/staging/iio/trigger_consumer.h
index 9d52d9637777dac9aad662bae6f73b39c2cf09d2..60d64b3569458a7f33c96ea27caa4df908ca9d59 100644 (file)
--- a/drivers/staging/iio/trigger_consumer.h
+++ b/drivers/staging/iio/trigger_consumer.h
@@ -1,47 +1,52 @@
-
-/* The industrial I/O core, trigger consumer handling functions
+/* The industrial I/O core, trigger consumer functions
  *
- * Copyright (c) 2008 Jonathan Cameron
+ * Copyright (c) 2008-2011 Jonathan Cameron
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 as published by
  * the Free Software Foundation.
  */
 
-#ifdef CONFIG_IIO_TRIGGER
-/**
- * iio_device_register_trigger_consumer() - set up an iio_dev to use triggers
- * @dev_info: iio_dev associated with the device that will consume the trigger
- **/
-int iio_device_register_trigger_consumer(struct iio_dev *dev_info);
-
-/**
- * iio_device_unregister_trigger_consumer() - reverse the registration process
- * @dev_info: iio_dev associated with the device that consumed the trigger
- **/
-int iio_device_unregister_trigger_consumer(struct iio_dev *dev_info);
-
-#else
-
 /**
- * iio_device_register_trigger_consumer() - set up an iio_dev to use triggers
- * @dev_info: iio_dev associated with the device that will consume the trigger
- **/
-static int iio_device_register_trigger_consumer(struct iio_dev *dev_info)
-{
-       return 0;
-};
-
-/**
- * iio_device_unregister_trigger_consumer() - reverse the registration process
- * @dev_info: iio_dev associated with the device that consumed the trigger
+ * struct iio_poll_func - poll function pair
+ *
+ * @indio_dev:                 data specific to device (passed into poll func)
+ * @h:                         the function that is actually run on trigger
+ * @thread:                    threaded interrupt part
+ * @type:                      the type of interrupt (basically if oneshot)
+ * @name:                      name used to identify the trigger consumer.
+ * @irq:                       the corresponding irq as allocated from the
+ *                             trigger pool
+ * @timestamp:                 some devices need a timestamp grabbed as soon
+ *                             as possible after the trigger - hence handler
+ *                             passes it via here.
  **/
-static int iio_device_unregister_trigger_consumer(struct iio_dev *dev_info)
-{
-       return 0;
+struct iio_poll_func {
+       struct iio_dev *indio_dev;
+       irqreturn_t (*h)(int irq, void *p);
+       irqreturn_t (*thread)(int irq, void *p);
+       int type;
+       char *name;
+       int irq;
+       s64 timestamp;
 };
 
-#endif /* CONFIG_TRIGGER_CONSUMER */
 
+struct iio_poll_func
+*iio_alloc_pollfunc(irqreturn_t (*h)(int irq, void *p),
+                   irqreturn_t (*thread)(int irq, void *p),
+                   int type,
+                   struct iio_dev *indio_dev,
+                   const char *fmt,
+                   ...);
+void iio_dealloc_pollfunc(struct iio_poll_func *pf);
+irqreturn_t iio_pollfunc_store_time(int irq, void *p);
 
+void iio_trigger_notify_done(struct iio_trigger *trig);
 
+/*
+ * Two functions for common case where all that happens is a pollfunc
+ * is attached and detached from a trigger
+ */
+int iio_triggered_buffer_postenable(struct iio_dev *indio_dev);
+int iio_triggered_buffer_predisable(struct iio_dev *indio_dev);