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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-05 16:36:30 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-05 16:36:30 -0700 |
commit | f4d33337eac4007793ca11fd1ab68d91ce7aa762 (patch) | |
tree | b775ad213179822225a3e1c1a27e4cc16f8aff68 /drivers/media/rc/ir-rc5-sz-decoder.c | |
parent | 91c2ff7708d4edf73ef1f0abb3ea4a44b4b0cf1d (diff) | |
parent | 0f3bf3dc1ca394a8385079a5653088672b65c5c4 (diff) | |
download | blackbird-op-linux-f4d33337eac4007793ca11fd1ab68d91ce7aa762.tar.gz blackbird-op-linux-f4d33337eac4007793ca11fd1ab68d91ce7aa762.zip |
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.c | 154 |
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"); |