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
  ...

1 files changed, 134 insertions, 0 deletions

diff --git a/drivers/media/usb/usbtv/usbtv-core.c b/drivers/media/usb/usbtv/usbtv-core.c
new file mode 100644
index 0000000..2f87ddf
--- /dev/null
+++ b/drivers/media/usb/usbtv/usbtv-core.c
@@ -0,0 +1,134 @@
+/*
+ * Fushicai USBTV007 Video Grabber Driver
+ *
+ * Product web site:
+ * http://www.fushicai.com/products_detail/&productId=d05449ee-b690-42f9-a661-aa7353894bed.html
+ *
+ * Following LWN articles were very useful in construction of this driver:
+ * Video4Linux2 API series: http://lwn.net/Articles/203924/
+ * videobuf2 API explanation: http://lwn.net/Articles/447435/
+ * Thanks go to Jonathan Corbet for providing this quality documentation.
+ * He is awesome.
+ *
+ * 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 "usbtv.h"
+
+int usbtv_set_regs(struct usbtv *usbtv, const u16 regs[][2], int size)
+{
+	int ret;
+	int pipe = usb_rcvctrlpipe(usbtv->udev, 0);
+	int i;
+
+	for (i = 0; i < size; i++) {
+		u16 index = regs[i][0];
+		u16 value = regs[i][1];
+
+		ret = usb_control_msg(usbtv->udev, pipe, USBTV_REQUEST_REG,
+			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			value, index, NULL, 0, 0);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int usbtv_probe(struct usb_interface *intf,
+	const struct usb_device_id *id)
+{
+	int ret;
+	int size;
+	struct device *dev = &intf->dev;
+	struct usbtv *usbtv;
+
+	/* Checks that the device is what we think it is. */
+	if (intf->num_altsetting != 2)
+		return -ENODEV;
+	if (intf->altsetting[1].desc.bNumEndpoints != 4)
+		return -ENODEV;
+
+	/* Packet size is split into 11 bits of base size and count of
+	 * extra multiplies of it.*/
+	size = usb_endpoint_maxp(&intf->altsetting[1].endpoint[0].desc);
+	size = (size & 0x07ff) * (((size & 0x1800) >> 11) + 1);
+
+	/* Device structure */
+	usbtv = kzalloc(sizeof(struct usbtv), GFP_KERNEL);
+	if (usbtv == NULL)
+		return -ENOMEM;
+	usbtv->dev = dev;
+	usbtv->udev = usb_get_dev(interface_to_usbdev(intf));
+
+	usbtv->iso_size = size;
+
+	usb_set_intfdata(intf, usbtv);
+
+	ret = usbtv_video_init(usbtv);
+	if (ret < 0)
+		goto usbtv_video_fail;
+
+	/* for simplicity we exploit the v4l2_device reference counting */
+	v4l2_device_get(&usbtv->v4l2_dev);
+
+	dev_info(dev, "Fushicai USBTV007 Video Grabber\n");
+	return 0;
+
+usbtv_video_fail:
+	kfree(usbtv);
+
+	return ret;
+}
+
+static void usbtv_disconnect(struct usb_interface *intf)
+{
+	struct usbtv *usbtv = usb_get_intfdata(intf);
+	usb_set_intfdata(intf, NULL);
+
+	if (!usbtv)
+		return;
+
+	usbtv_video_free(usbtv);
+
+	usb_put_dev(usbtv->udev);
+	usbtv->udev = NULL;
+
+	/* the usbtv structure will be deallocated when v4l2 will be
+	   done using it */
+	v4l2_device_put(&usbtv->v4l2_dev);
+}
+
+static struct usb_device_id usbtv_id_table[] = {
+	{ USB_DEVICE(0x1b71, 0x3002) },
+	{}
+};
+MODULE_DEVICE_TABLE(usb, usbtv_id_table);
+
+MODULE_AUTHOR("Lubomir Rintel");
+MODULE_DESCRIPTION("Fushicai USBTV007 Video Grabber Driver");
+MODULE_LICENSE("Dual BSD/GPL");
+
+static struct usb_driver usbtv_usb_driver = {
+	.name = "usbtv",
+	.id_table = usbtv_id_table,
+	.probe = usbtv_probe,
+	.disconnect = usbtv_disconnect,
+};
+
+module_usb_driver(usbtv_usb_driver);