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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 16:34:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 16:34:21 -0700
commitfb09bafda67041b74a668dc9d77735e36bd33d3b (patch)
tree2dd32b65062a95045468fdcab366ecdb8e4fcac6 /include/linux/iio/trigger_consumer.h
parent94b5aff4c6f72fee6b0f49d49e4fa8b204e8ded9 (diff)
parentc3c6cc91b0ae7b3d598488ad0b593bafba4a0817 (diff)
Merge tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree changes from Greg Kroah-Hartman: "Here is the big staging tree pull request for the 3.5-rc1 merge window. Loads of changes here, and we just narrowly added more lines than we added: 622 files changed, 28356 insertions(+), 26059 deletions(-) But, good news is that there is a number of subsystems that moved out of the staging tree, to their respective "real" portions of the kernel. Code that moved out was: - iio core code - mei driver - vme core and bridge drivers There was one broken network driver that moved into staging as a step before it is removed from the tree (pc300), and there was a few new drivers added to the tree: - new iio drivers - gdm72xx wimax USB driver - ipack subsystem and 2 drivers All of the movements around have acks from the various subsystem maintainers, and all of this has been in the linux-next tree for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fixed up various trivial conflicts, along with a non-trivial one found in -next and pointed out by Olof Johanssen: a clean - but incorrect - merge of the arch/arm/boot/dts/at91sam9g20.dtsi file. Fix up manually as per Stephen Rothwell. * tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (536 commits) Staging: bcm: Remove two unused variables from Adapter.h Staging: bcm: Removes the volatile type definition from Adapter.h Staging: bcm: Rename all "INT" to "int" in Adapter.h Staging: bcm: Fix warning: __packed vs. __attribute__((packed)) in Adapter.h Staging: bcm: Correctly format all comments in Adapter.h Staging: bcm: Fix all whitespace issues in Adapter.h Staging: bcm: Properly format braces in Adapter.h Staging: ipack/bridges/tpci200: remove unneeded casts Staging: ipack/bridges/tpci200: remove TPCI200_SHORTNAME constant Staging: ipack: remove board_name and bus_name fields from struct ipack_device Staging: ipack: improve the register of a bus and a device in the bus. staging: comedi: cleanup all the comedi_driver 'detach' functions staging: comedi: remove all 'default N' in Kconfig staging: line6/config.h: Delete unused header staging: gdm72xx depends on NET staging: gdm72xx: Set up parent link in sysfs for gdm72xx devices staging: drm/omap: initial dmabuf/prime import support staging: drm/omap: dmabuf/prime mmap support pstore/ram: Add ECC support pstore/ram: Switch to persistent_ram routines ...
Diffstat (limited to 'include/linux/iio/trigger_consumer.h')
-rw-r--r--include/linux/iio/trigger_consumer.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/include/linux/iio/trigger_consumer.h b/include/linux/iio/trigger_consumer.h
new file mode 100644
index 000000000000..60d64b356945
--- /dev/null
+++ b/include/linux/iio/trigger_consumer.h
@@ -0,0 +1,52 @@
+/* The industrial I/O core, trigger consumer functions
+ *
+ * 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.
+ */
+
+/**
+ * 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.
+ **/
+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;
+};
+
+
+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);