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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 20:37:45 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 20:37:45 +0400
commitfb091be08d1acf184e8801dfdcace6e0cb19b1fe (patch)
treecbd0c4200fd8628d592167589ca790e36fc4ae26 /drivers/media/IR/ir-core-priv.h
parentbd7fc2f2d807fdb254f7efc542f8eec3f23e289e (diff)
parente8d0416796d43a950ec7b65629e53419b2e22453 (diff)
downloadlinux-fb091be08d1acf184e8801dfdcace6e0cb19b1fe.tar.xz
Merge branch 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (534 commits) V4L/DVB (13554a): v4l: Use the video_drvdata function in drivers V4L/DVB: vivi and mem2mem_testdev need slab.h to build V4L/DVB: tm6000: bugfix image position V4L/DVB: IR/imon: remove dead IMON_KEY_RELEASE_OFFSET V4L/DVB: tm6000: README - add vbi V4L/DVB: Fix unlock logic at medusa_video_init V4L/DVB: fix dvb frontend lockup V4L/DVB: s2255drv: remove dead code V4L/DVB: s2255drv: return if vdev not found V4L/DVB: ov511: cleanup: remove unneeded null check V4L/DVB: media/mem2mem: dereferencing free memory V4L/DVB: media/IR: Add missing include file to rc-map.c V4L/DVB: dvb/stv6110x: cleanup error handling V4L/DVB: ngene: Add lgdt3303 and mt2131 deps to Kconfig V4L/DVB: ngene: start separating out DVB functions into separate file V4L/DVB: ngene: split out card specific code into a separate file V4L/DVB: ngene: split out i2c code into a separate file V4L/DVB: ngene: add initial support for digital side of Avermedia m780 V4L/DVB: ngene: properly support boards where channel 0 isn't a TS input V4L-DVB: ngene: make sure that tuner headers are included ...
Diffstat (limited to 'drivers/media/IR/ir-core-priv.h')
-rw-r--r--drivers/media/IR/ir-core-priv.h126
1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/media/IR/ir-core-priv.h b/drivers/media/IR/ir-core-priv.h
new file mode 100644
index 000000000000..9a5e65a471a5
--- /dev/null
+++ b/drivers/media/IR/ir-core-priv.h
@@ -0,0 +1,126 @@
+/*
+ * Remote Controller core raw events header
+ *
+ * Copyright (C) 2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _IR_RAW_EVENT
+#define _IR_RAW_EVENT
+
+#include <linux/slab.h>
+#include <media/ir-core.h>
+
+struct ir_raw_handler {
+ struct list_head list;
+
+ int (*decode)(struct input_dev *input_dev, struct ir_raw_event event);
+ int (*raw_register)(struct input_dev *input_dev);
+ int (*raw_unregister)(struct input_dev *input_dev);
+};
+
+struct ir_raw_event_ctrl {
+ struct work_struct rx_work; /* for the rx decoding workqueue */
+ struct kfifo kfifo; /* fifo for the pulse/space durations */
+ ktime_t last_event; /* when last event occurred */
+ enum raw_event_type last_type; /* last event type */
+ struct input_dev *input_dev; /* pointer to the parent input_dev */
+};
+
+/* macros for IR decoders */
+static inline bool geq_margin(unsigned d1, unsigned d2, unsigned margin)
+{
+ return d1 > (d2 - margin);
+}
+
+static inline bool eq_margin(unsigned d1, unsigned d2, unsigned margin)
+{
+ return ((d1 > (d2 - margin)) && (d1 < (d2 + margin)));
+}
+
+static inline bool is_transition(struct ir_raw_event *x, struct ir_raw_event *y)
+{
+ return x->pulse != y->pulse;
+}
+
+static inline void decrease_duration(struct ir_raw_event *ev, unsigned duration)
+{
+ if (duration > ev->duration)
+ ev->duration = 0;
+ else
+ ev->duration -= duration;
+}
+
+#define TO_US(duration) (((duration) + 500) / 1000)
+#define TO_STR(is_pulse) ((is_pulse) ? "pulse" : "space")
+#define IS_RESET(ev) (ev.duration == 0)
+
+/*
+ * Routines from ir-sysfs.c - Meant to be called only internally inside
+ * ir-core
+ */
+
+int ir_register_class(struct input_dev *input_dev);
+void ir_unregister_class(struct input_dev *input_dev);
+
+/*
+ * Routines from ir-raw-event.c to be used internally and by decoders
+ */
+int ir_raw_event_register(struct input_dev *input_dev);
+void ir_raw_event_unregister(struct input_dev *input_dev);
+int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
+void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
+void ir_raw_init(void);
+
+
+/*
+ * Decoder initialization code
+ *
+ * Those load logic are called during ir-core init, and automatically
+ * loads the compiled decoders for their usage with IR raw events
+ */
+
+/* from ir-nec-decoder.c */
+#ifdef CONFIG_IR_NEC_DECODER_MODULE
+#define load_nec_decode() request_module("ir-nec-decoder")
+#else
+#define load_nec_decode() 0
+#endif
+
+/* from ir-rc5-decoder.c */
+#ifdef CONFIG_IR_RC5_DECODER_MODULE
+#define load_rc5_decode() request_module("ir-rc5-decoder")
+#else
+#define load_rc5_decode() 0
+#endif
+
+/* from ir-rc6-decoder.c */
+#ifdef CONFIG_IR_RC6_DECODER_MODULE
+#define load_rc6_decode() request_module("ir-rc6-decoder")
+#else
+#define load_rc6_decode() 0
+#endif
+
+/* from ir-jvc-decoder.c */
+#ifdef CONFIG_IR_JVC_DECODER_MODULE
+#define load_jvc_decode() request_module("ir-jvc-decoder")
+#else
+#define load_jvc_decode() 0
+#endif
+
+/* from ir-sony-decoder.c */
+#ifdef CONFIG_IR_SONY_DECODER_MODULE
+#define load_sony_decode() request_module("ir-sony-decoder")
+#else
+#define load_sony_decode() 0
+#endif
+
+#endif /* _IR_RAW_EVENT */