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 first part of the media updates for Kernel 3.7.

  This series contain:

   - A major tree renaming patch series: now, drivers are organized
     internally by their used bus, instead of by V4L2 and/or DVB API,
     providing a cleaner driver location for hybrid drivers that
     implement both APIs, and allowing to cleanup the Kconfig items and
     make them more intuitive for the end user;

   - Media Kernel developers are typically very lazy with their duties
     of keeping the MAINTAINERS entries for their drivers updated.  As
     now the tree is more organized, we're doing an effort to add/update
     those entries for the drivers that aren't currently orphan;

   - Several DVB USB drivers got moved to a new DVB USB v2 core; the new
     core fixes several bugs (as the existing one that got bitroted).
     Now, suspend/resume finally started to work fine (at least with
     some devices - we should expect more work with regards to it);

   - added multistream support for DVB-T2, and unified the API for
     DVB-S2 and ISDB-S.  Backward binary support is preserved;

   - as usual, a few new drivers, some V4L2 core improvements and lots
     of drivers improvements and fixes.

  There are some points to notice on this series:

   1) you should expect a trivial merge conflict on your tree, with the
      removal of Documentation/feature-removal-schedule.txt: this series
      would be adding two additional entries there.  I opted to not
      rebase it due to this recent change;

   2) With regards to the PCTV 520e udev-related breakage, I opted to
      fix it in a way that the patches can be backported to 3.5 even
      without your firmware fix patch.  This way, Greg doesn't need to
      rush backporting your patch (as there are still the firmware cache
      and firmware path customization issues to be addressed there).

      I'll send later a patch (likely after the end of the merge window)
      reverting the rest of the DRX-K async firmware request, fully
      restoring its original behaviour to allow media drivers to
      initialize everything serialized as before for 3.7 and upper.

   3) I'm planning to work on this weekend to test the DMABUF patches
      for V4L2.  The patches are on my queue for several Kernel cycles,
      but, up to now, there is/was no way to test the series locally.

      I have some concerns about this particular changeset with regards
      to security issues, and with regards to the replacement of the old
      VIDIOC_OVERLAY ioctl's that is broken on modern systems, due to
      GPU drivers change.  The Overlay API allows direct PCI2PCI
      transfers from a media capture card into the GPU framebuffer, but
      its API is crappy.  Also, the only existing X11 driver that
      implements it requires a XV extension that is not available
      anymore on modern drivers.  The DMABUF can do the same thing, but
      with it is promising to be a properly-designed API.  If I can
      successfully test this series and be happy with it, I should be
      asking you to pull them next week."

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (717 commits)
  em28xx: regression fix: use DRX-K sync firmware requests on em28xx
  drxk: allow loading firmware synchrousnously
  em28xx: Make all em28xx extensions to be initialized asynchronously
  [media] tda18271: properly report read errors in tda18271_get_id
  [media] tda18271: delay IR & RF calibration until init() if delay_cal is set
  [media] MAINTAINERS: add Michael Krufky as tda827x maintainer
  [media] MAINTAINERS: add Michael Krufky as tda8290 maintainer
  [media] MAINTAINERS: add Michael Krufky as cxusb maintainer
  [media] MAINTAINERS: add Michael Krufky as lg2160 maintainer
  [media] MAINTAINERS: add Michael Krufky as lgdt3305 maintainer
  [media] MAINTAINERS: add Michael Krufky as mxl111sf maintainer
  [media] MAINTAINERS: add Michael Krufky as mxl5007t maintainer
  [media] MAINTAINERS: add Michael Krufky as tda18271 maintainer
  [media] s5p-tv: Report only multi-plane capabilities in vidioc_querycap
  [media] s5p-mfc: Fix misplaced return statement in s5p_mfc_suspend()
  [media] exynos-gsc: Add missing static storage class specifiers
  [media] exynos-gsc: Remove <linux/version.h> header file inclusion
  [media] s5p-fimc: Fix incorrect condition in fimc_lite_reqbufs()
  [media] s5p-tv: Fix potential NULL pointer dereference error
  [media] s5k6aa: Fix possible NULL pointer dereference
  ...

1 files changed, 150 insertions, 0 deletions

diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.h b/drivers/media/platform/s5p-jpeg/jpeg-core.h
new file mode 100644
index 000000000000..022b9b9baff9
--- /dev/null
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.h
@@ -0,0 +1,150 @@
+/* linux/drivers/media/platform/s5p-jpeg/jpeg-core.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef JPEG_CORE_H_
+#define JPEG_CORE_H_
+
+#include <media/v4l2-device.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-ctrls.h>
+
+#define S5P_JPEG_M2M_NAME		"s5p-jpeg"
+
+/* JPEG compression quality setting */
+#define S5P_JPEG_COMPR_QUAL_BEST	0
+#define S5P_JPEG_COMPR_QUAL_WORST	3
+
+/* JPEG RGB to YCbCr conversion matrix coefficients */
+#define S5P_JPEG_COEF11			0x4d
+#define S5P_JPEG_COEF12			0x97
+#define S5P_JPEG_COEF13			0x1e
+#define S5P_JPEG_COEF21			0x2c
+#define S5P_JPEG_COEF22			0x57
+#define S5P_JPEG_COEF23			0x83
+#define S5P_JPEG_COEF31			0x83
+#define S5P_JPEG_COEF32			0x6e
+#define S5P_JPEG_COEF33			0x13
+
+/* a selection of JPEG markers */
+#define TEM				0x01
+#define SOF0				0xc0
+#define RST				0xd0
+#define SOI				0xd8
+#define EOI				0xd9
+#define DHP				0xde
+
+/* Flags that indicate a format can be used for capture/output */
+#define MEM2MEM_CAPTURE			(1 << 0)
+#define MEM2MEM_OUTPUT			(1 << 1)
+
+/**
+ * struct s5p_jpeg - JPEG IP abstraction
+ * @lock:		the mutex protecting this structure
+ * @slock:		spinlock protecting the device contexts
+ * @v4l2_dev:		v4l2 device for mem2mem mode
+ * @vfd_encoder:	video device node for encoder mem2mem mode
+ * @vfd_decoder:	video device node for decoder mem2mem mode
+ * @m2m_dev:		v4l2 mem2mem device data
+ * @regs:		JPEG IP registers mapping
+ * @irq:		JPEG IP irq
+ * @clk:		JPEG IP clock
+ * @dev:		JPEG IP struct device
+ * @alloc_ctx:		videobuf2 memory allocator's context
+ */
+struct s5p_jpeg {
+	struct mutex		lock;
+	struct spinlock		slock;
+
+	struct v4l2_device	v4l2_dev;
+	struct video_device	*vfd_encoder;
+	struct video_device	*vfd_decoder;
+	struct v4l2_m2m_dev	*m2m_dev;
+
+	void __iomem		*regs;
+	unsigned int		irq;
+	struct clk		*clk;
+	struct device		*dev;
+	void			*alloc_ctx;
+};
+
+/**
+ * struct jpeg_fmt - driver's internal color format data
+ * @name:	format descritpion
+ * @fourcc:	the fourcc code, 0 if not applicable
+ * @depth:	number of bits per pixel
+ * @colplanes:	number of color planes (1 for packed formats)
+ * @h_align:	horizontal alignment order (align to 2^h_align)
+ * @v_align:	vertical alignment order (align to 2^v_align)
+ * @types:	types of queue this format is applicable to
+ */
+struct s5p_jpeg_fmt {
+	char	*name;
+	u32	fourcc;
+	int	depth;
+	int	colplanes;
+	int	h_align;
+	int	v_align;
+	u32	types;
+};
+
+/**
+ * s5p_jpeg_q_data - parameters of one queue
+ * @fmt:	driver-specific format of this queue
+ * @w:		image width
+ * @h:		image height
+ * @size:	image buffer size in bytes
+ */
+struct s5p_jpeg_q_data {
+	struct s5p_jpeg_fmt	*fmt;
+	u32			w;
+	u32			h;
+	u32			size;
+};
+
+/**
+ * s5p_jpeg_ctx - the device context data
+ * @jpeg:		JPEG IP device for this context
+ * @mode:		compression (encode) operation or decompression (decode)
+ * @compr_quality:	destination image quality in compression (encode) mode
+ * @m2m_ctx:		mem2mem device context
+ * @out_q:		source (output) queue information
+ * @cap_fmt:		destination (capture) queue queue information
+ * @hdr_parsed:		set if header has been parsed during decompression
+ * @ctrl_handler:	controls handler
+ */
+struct s5p_jpeg_ctx {
+	struct s5p_jpeg		*jpeg;
+	unsigned int		mode;
+	unsigned short		compr_quality;
+	unsigned short		restart_interval;
+	unsigned short		subsampling;
+	struct v4l2_m2m_ctx	*m2m_ctx;
+	struct s5p_jpeg_q_data	out_q;
+	struct s5p_jpeg_q_data	cap_q;
+	struct v4l2_fh		fh;
+	bool			hdr_parsed;
+	struct v4l2_ctrl_handler ctrl_handler;
+};
+
+/**
+ * s5p_jpeg_buffer - description of memory containing input JPEG data
+ * @size:	buffer size
+ * @curr:	current position in the buffer
+ * @data:	pointer to the data
+ */
+struct s5p_jpeg_buffer {
+	unsigned long size;
+	unsigned long curr;
+	unsigned long data;
+};
+
+#endif /* JPEG_CORE_H */