diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-04 09:50:07 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-04 09:50:07 -0700 |
commit | 3c83e61e67256e0bb08c46cc2db43b58fd617251 (patch) | |
tree | 0233e1e04e6449c60b01ff5dea8bea85bcf22f08 /drivers/media/usb/usbtv/usbtv.h | |
parent | 4a4389abdd9822fdf3cc2ac6ed87eb811fd43acc (diff) | |
parent | a83b93a7480441a47856dc9104bea970e84cda87 (diff) | |
download | linux-3c83e61e67256e0bb08c46cc2db43b58fd617251.tar.bz2 |
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:
"The main set of series of patches for media subsystem, including:
- document RC sysfs class
- added an API to setup scancode to allow waking up systems using the
Remote Controller
- add API for SDR devices. Drivers are still on staging
- some API improvements for getting EDID data from media
inputs/outputs
- new DVB frontend driver for drx-j (ATSC)
- one driver (it913x/it9137) got removed, in favor of an improvement
on another driver (af9035)
- added a skeleton V4L2 PCI driver at documentation
- added a dual flash driver (lm3646)
- added a new IR driver (img-ir)
- added an IR scancode decoder for the Sharp protocol
- some improvements at the usbtv driver, to allow its core to be
reused.
- added a new SDR driver (rtl2832u_sdr)
- added a new tuner driver (msi001)
- several improvements at em28xx driver to fix PM support, device
removal and to split the V4L2 specific bits into a separate
sub-driver
- one driver got converted to videobuf2 (s2255drv)
- the e4000 tuner driver now follows an improved binding model
- some fixes at V4L2 compat32 code
- several fixes and enhancements at videobuf2 code
- some cleanups at V4L2 API documentation
- usual driver enhancements, new board additions and misc fixups"
[ NOTE! This merge effective drops commit 4329b93b283c ("of: Reduce
indentation in of_graph_get_next_endpoint").
The of_graph_get_next_endpoint() function was moved and renamed by
commit fd9fdb78a9bf ("[media] of: move graph helpers from
drivers/media/v4l2-core to drivers/of"). It was originally called
v4l2_of_get_next_endpoint() and lived in the file
drivers/media/v4l2-core/v4l2-of.c.
In that original location, it was then fixed to support empty port
nodes by commit b9db140c1e46 ("[media] v4l: of: Support empty port
nodes"), and that commit clashes badly with the dropped "Reduce
intendation" commit. I had to choose one or the other, and decided
that the "Support empty port nodes" commit was more important ]
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (426 commits)
[media] em28xx-dvb: fix PCTV 461e tuner I2C binding
Revert "[media] em28xx-dvb: fix PCTV 461e tuner I2C binding"
[media] em28xx: fix PCTV 290e LNA oops
[media] em28xx-dvb: fix PCTV 461e tuner I2C binding
[media] m88ds3103: fix bug on .set_tone()
[media] saa7134: fix WARN_ON during resume
[media] v4l2-dv-timings: add module name, description, license
[media] videodev2.h: add parenthesis around macro arguments
[media] saa6752hs: depends on CRC32
[media] si4713: fix Kconfig dependencies
[media] Sensoray 2255 uses videobuf2
[media] adv7180: free an interrupt on failure paths in init_device()
[media] e4000: make VIDEO_V4L2 dependency optional
[media] af9033: Don't export functions for the hardware filter
[media] af9035: use af9033 PID filters
[media] af9033: implement PID filter
[media] rtl2832_sdr: do not use dynamic stack allocation
[media] e4000: fix 32-bit build error
[media] em28xx-audio: make sure audio is unmuted on open()
[media] DocBook media: v4l2_format_sdr was renamed to v4l2_sdr_format
...
Diffstat (limited to 'drivers/media/usb/usbtv/usbtv.h')
-rw-r--r-- | drivers/media/usb/usbtv/usbtv.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/drivers/media/usb/usbtv/usbtv.h b/drivers/media/usb/usbtv/usbtv.h new file mode 100644 index 000000000000..cb1d388cc647 --- /dev/null +++ b/drivers/media/usb/usbtv/usbtv.h @@ -0,0 +1,99 @@ +/* + * Fushicai USBTV007 Video Grabber Driver + * + * Copyright (c) 2013 Lubomir Rintel + * All rights reserved. + * No physical hardware was harmed running Windows during the + * reverse-engineering activity + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL"). + */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/usb.h> + +#include <media/v4l2-device.h> +#include <media/videobuf2-vmalloc.h> + +/* Hardware. */ +#define USBTV_VIDEO_ENDP 0x81 +#define USBTV_BASE 0xc000 +#define USBTV_REQUEST_REG 12 + +/* Number of concurrent isochronous urbs submitted. + * Higher numbers was seen to overly saturate the USB bus. */ +#define USBTV_ISOC_TRANSFERS 16 +#define USBTV_ISOC_PACKETS 8 + +#define USBTV_CHUNK_SIZE 256 +#define USBTV_CHUNK 240 + +/* Chunk header. */ +#define USBTV_MAGIC_OK(chunk) ((be32_to_cpu(chunk[0]) & 0xff000000) \ + == 0x88000000) +#define USBTV_FRAME_ID(chunk) ((be32_to_cpu(chunk[0]) & 0x00ff0000) >> 16) +#define USBTV_ODD(chunk) ((be32_to_cpu(chunk[0]) & 0x0000f000) >> 15) +#define USBTV_CHUNK_NO(chunk) (be32_to_cpu(chunk[0]) & 0x00000fff) + +#define USBTV_TV_STD (V4L2_STD_525_60 | V4L2_STD_PAL) + +/* parameters for supported TV norms */ +struct usbtv_norm_params { + v4l2_std_id norm; + int cap_width, cap_height; +}; + +/* A single videobuf2 frame buffer. */ +struct usbtv_buf { + struct vb2_buffer vb; + struct list_head list; +}; + +/* Per-device structure. */ +struct usbtv { + struct device *dev; + struct usb_device *udev; + + /* video */ + struct v4l2_device v4l2_dev; + struct video_device vdev; + struct vb2_queue vb2q; + struct mutex v4l2_lock; + struct mutex vb2q_lock; + + /* List of videobuf2 buffers protected by a lock. */ + spinlock_t buflock; + struct list_head bufs; + + /* Number of currently processed frame, useful find + * out when a new one begins. */ + u32 frame_id; + int chunks_done; + + enum { + USBTV_COMPOSITE_INPUT, + USBTV_SVIDEO_INPUT, + } input; + v4l2_std_id norm; + int width, height; + int n_chunks; + int iso_size; + unsigned int sequence; + struct urb *isoc_urbs[USBTV_ISOC_TRANSFERS]; +}; + +int usbtv_set_regs(struct usbtv *usbtv, const u16 regs[][2], int size); + +int usbtv_video_init(struct usbtv *usbtv); +void usbtv_video_free(struct usbtv *usbtv); |