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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-05 16:36:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-05 16:36:30 -0700
commitf4d33337eac4007793ca11fd1ab68d91ce7aa762 (patch)
treeb775ad213179822225a3e1c1a27e4cc16f8aff68 /drivers/media/rc/ir-rc5-sz-decoder.c
parent91c2ff7708d4edf73ef1f0abb3ea4a44b4b0cf1d (diff)
parent0f3bf3dc1ca394a8385079a5653088672b65c5c4 (diff)
downloadblackbird-op-linux-f4d33337eac4007793ca11fd1ab68d91ce7aa762.tar.gz
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Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab: - removal of sn9c102. This device driver was replaced a long time ago by gspca - solo6x10 and go7007 webcam drivers moved from staging into mainstream. They were waiting for an API to allow setting the image detection matrix - SDR drivers moved from staging into mainstream: sdr-msi3101 (renamed as msi2500) and rtl2832 - added SDR driver for airspy - added demux driver: si2165 - rework at several RC subsystem, making the code for RC-5 SZ variant to be added at the standard RC5 decoder - added decoder for the XMP IR protocol - tuner driver moved from staging into mainstream: msi3101 (renamed as msi001) - added documentation for some additional SDR pixfmt - some device tree bindings documented - added support for exynos3250 at s5p-jpeg - remove the obsolete, unmaintained and broken mx1_camera driver - added support for remote controllers at au0828 driver - added a RC driver: sunxi-cir - several driver fixes, enhancements and cleanups. * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (455 commits) [media] cx23885: fix UNSET/TUNER_ABSENT confusion [media] coda: fix build error by making reset control optional [media] radio-miropcm20: fix sparse NULL pointer warning [media] MAINTAINERS: Update go7007 pattern [media] MAINTAINERS: Update solo6x10 patterns [media] media: atmel-isi: add primary DT support [media] media: atmel-isi: convert the pdata from pointer to structure [media] media: atmel-isi: add v4l2 async probe support [media] rcar_vin: add devicetree support [media] media: pxa_camera device-tree support [media] media: mt9m111: add device-tree suppport [media] soc_camera: add support for dt binding soc_camera drivers [media] media: soc_camera: pxa_camera documentation device-tree support [media] media: mt9m111: add device-tree documentation [media] s5p-mfc: remove unnecessary calling to function video_devdata() [media] s5p-jpeg: add chroma subsampling adjustment for Exynos3250 [media] s5p-jpeg: Prevent erroneous downscaling for Exynos3250 SoC [media] s5p-jpeg: Assure proper crop rectangle initialization [media] s5p-jpeg: fix g_selection op [media] s5p-jpeg: Adjust jpeg_bound_align_image to Exynos3250 needs ...
Diffstat (limited to 'drivers/media/rc/ir-rc5-sz-decoder.c')
-rw-r--r--drivers/media/rc/ir-rc5-sz-decoder.c154
1 files changed, 0 insertions, 154 deletions
diff --git a/drivers/media/rc/ir-rc5-sz-decoder.c b/drivers/media/rc/ir-rc5-sz-decoder.c
deleted file mode 100644
index dc18b7434db8..000000000000
--- a/drivers/media/rc/ir-rc5-sz-decoder.c
+++ /dev/null
@@ -1,154 +0,0 @@
-/* ir-rc5-sz-decoder.c - handle RC5 Streamzap IR Pulse/Space protocol
- *
- * Copyright (C) 2010 by Mauro Carvalho Chehab
- * Copyright (C) 2010 by Jarod Wilson <jarod@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.
- */
-
-/*
- * This code handles the 15 bit RC5-ish protocol used by the Streamzap
- * PC Remote.
- * It considers a carrier of 36 kHz, with a total of 15 bits, where
- * the first two bits are start bits, and a third one is a filing bit
- */
-
-#include "rc-core-priv.h"
-#include <linux/module.h>
-
-#define RC5_SZ_NBITS 15
-#define RC5_UNIT 888888 /* ns */
-#define RC5_BIT_START (1 * RC5_UNIT)
-#define RC5_BIT_END (1 * RC5_UNIT)
-
-enum rc5_sz_state {
- STATE_INACTIVE,
- STATE_BIT_START,
- STATE_BIT_END,
- STATE_FINISHED,
-};
-
-/**
- * ir_rc5_sz_decode() - Decode one RC-5 Streamzap pulse or space
- * @dev: the struct rc_dev descriptor of the device
- * @ev: the struct ir_raw_event descriptor of the pulse/space
- *
- * This function returns -EINVAL if the pulse violates the state machine
- */
-static int ir_rc5_sz_decode(struct rc_dev *dev, struct ir_raw_event ev)
-{
- struct rc5_sz_dec *data = &dev->raw->rc5_sz;
- u8 toggle, command, system;
- u32 scancode;
-
- if (!rc_protocols_enabled(dev, RC_BIT_RC5_SZ))
- return 0;
-
- if (!is_timing_event(ev)) {
- if (ev.reset)
- data->state = STATE_INACTIVE;
- return 0;
- }
-
- if (!geq_margin(ev.duration, RC5_UNIT, RC5_UNIT / 2))
- goto out;
-
-again:
- IR_dprintk(2, "RC5-sz decode started at state %i (%uus %s)\n",
- data->state, TO_US(ev.duration), TO_STR(ev.pulse));
-
- if (!geq_margin(ev.duration, RC5_UNIT, RC5_UNIT / 2))
- return 0;
-
- switch (data->state) {
-
- case STATE_INACTIVE:
- if (!ev.pulse)
- break;
-
- data->state = STATE_BIT_START;
- data->count = 1;
- data->wanted_bits = RC5_SZ_NBITS;
- decrease_duration(&ev, RC5_BIT_START);
- goto again;
-
- case STATE_BIT_START:
- if (!eq_margin(ev.duration, RC5_BIT_START, RC5_UNIT / 2))
- break;
-
- data->bits <<= 1;
- if (!ev.pulse)
- data->bits |= 1;
- data->count++;
- data->state = STATE_BIT_END;
- return 0;
-
- case STATE_BIT_END:
- if (!is_transition(&ev, &dev->raw->prev_ev))
- break;
-
- if (data->count == data->wanted_bits)
- data->state = STATE_FINISHED;
- else
- data->state = STATE_BIT_START;
-
- decrease_duration(&ev, RC5_BIT_END);
- goto again;
-
- case STATE_FINISHED:
- if (ev.pulse)
- break;
-
- /* RC5-sz */
- command = (data->bits & 0x0003F) >> 0;
- system = (data->bits & 0x02FC0) >> 6;
- toggle = (data->bits & 0x01000) ? 1 : 0;
- scancode = system << 6 | command;
-
- IR_dprintk(1, "RC5-sz scancode 0x%04x (toggle: %u)\n",
- scancode, toggle);
-
- rc_keydown(dev, scancode, toggle);
- data->state = STATE_INACTIVE;
- return 0;
- }
-
-out:
- IR_dprintk(1, "RC5-sz decode failed at state %i (%uus %s)\n",
- data->state, TO_US(ev.duration), TO_STR(ev.pulse));
- data->state = STATE_INACTIVE;
- return -EINVAL;
-}
-
-static struct ir_raw_handler rc5_sz_handler = {
- .protocols = RC_BIT_RC5_SZ,
- .decode = ir_rc5_sz_decode,
-};
-
-static int __init ir_rc5_sz_decode_init(void)
-{
- ir_raw_handler_register(&rc5_sz_handler);
-
- printk(KERN_INFO "IR RC5 (streamzap) protocol handler initialized\n");
- return 0;
-}
-
-static void __exit ir_rc5_sz_decode_exit(void)
-{
- ir_raw_handler_unregister(&rc5_sz_handler);
-}
-
-module_init(ir_rc5_sz_decode_init);
-module_exit(ir_rc5_sz_decode_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jarod Wilson <jarod@redhat.com>");
-MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com)");
-MODULE_DESCRIPTION("RC5 (streamzap) IR protocol decoder");
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