From 39ce61a846c8e1fa00cb57ad5af021542e6e8403 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 11 Nov 2011 12:46:23 -0200 Subject: [media] dvb: Allow select between DVB-C Annex A and Annex C DVB-C, as defined by ITU-T J.83 has 3 annexes. The differences between Annex A and Annex C is that Annex C uses a subset of the modulation types, and uses a different rolloff factor. A different rolloff means that the bandwidth required is slicely different, and may affect the saw filter configuration at the tuners. Also, some demods have different configurations, depending on using Annex A or Annex C. So, allow userspace to specify it, by changing the rolloff factor. Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/dvb/dvbproperty.xml | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml index 3bc8a61efe30..6ac803959a47 100644 --- a/Documentation/DocBook/media/dvb/dvbproperty.xml +++ b/Documentation/DocBook/media/dvb/dvbproperty.xml @@ -311,6 +311,8 @@ typedef enum fe_rolloff { ROLLOFF_20, ROLLOFF_25, ROLLOFF_AUTO, + ROLLOFF_15, /* DVB-C Annex A */ + ROLLOFF_13, /* DVB-C Annex C */ } fe_rolloff_t; @@ -778,8 +780,10 @@ typedef enum fe_hierarchy { DTV_MODULATION DTV_INVERSION DTV_SYMBOL_RATE + DTV_ROLLOFF DTV_INNER_FEC + The Rolloff of 0.15 (ROLLOFF_15) is assumed, as ITU-T J.83 Annex A is more common. For Annex C, rolloff should be 0.13 (ROLLOFF_13). All other values are invalid.
DVB-C Annex B delivery system -- cgit 1.4.1 From 146d35b00db270054378de17ca33eb54b0b78311 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 12 Oct 2011 06:58:44 -0300 Subject: [media] V4L spec: fix typo and missing CAP_RDS documentation For some reason the V4L2_TUNER_CAP_RDS_CONTROLS/BLOCK_IO capabilities were never documented in the proper table. In addition, then RDS interface section incorrectly referred to them as V4L2_TUNER_SUB_RDS_... instead of CAP_RDS_... This is now fixed. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/dev-rds.xml | 8 ++++---- Documentation/DocBook/media/v4l/vidioc-g-tuner.xml | 10 ++++++++++ 2 files changed, 14 insertions(+), 4 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/dev-rds.xml b/Documentation/DocBook/media/v4l/dev-rds.xml index 2427f54397e7..7644b2ec88d7 100644 --- a/Documentation/DocBook/media/v4l/dev-rds.xml +++ b/Documentation/DocBook/media/v4l/dev-rds.xml @@ -29,10 +29,10 @@ returned by the &VIDIOC-QUERYCAP; ioctl. Any tuner that supports RDS will set the V4L2_TUNER_CAP_RDS flag in the capability field of &v4l2-tuner;. If the driver only passes RDS blocks without interpreting the data -the V4L2_TUNER_SUB_RDS_BLOCK_IO flag has to be +the V4L2_TUNER_CAP_RDS_BLOCK_IO flag has to be set, see Reading RDS data. For future use the -flag V4L2_TUNER_SUB_RDS_CONTROLS has also been +flag V4L2_TUNER_CAP_RDS_CONTROLS has also been defined. However, a driver for a radio tuner with this capability does not yet exist, so if you are planning to write such a driver you should discuss this on the linux-media mailing list: &v4l-ml;. @@ -52,9 +52,9 @@ field of &v4l2-modulator;. In order to enable the RDS transmission one must set the V4L2_TUNER_SUB_RDS bit in the txsubchans field of &v4l2-modulator;. If the driver only passes RDS blocks without interpreting the data -the V4L2_TUNER_SUB_RDS_BLOCK_IO flag has to be set. If the +the V4L2_TUNER_CAP_RDS_BLOCK_IO flag has to be set. If the tuner is capable of handling RDS entities like program identification codes and radio -text, the flag V4L2_TUNER_SUB_RDS_CONTROLS should be set, +text, the flag V4L2_TUNER_CAP_RDS_CONTROLS should be set, see Writing RDS data and FM Transmitter Control Reference.
diff --git a/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml b/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml index bd98c734c06b..b23a4b097b34 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml @@ -318,6 +318,16 @@ standard. RDS capture is supported. This capability is only valid for radio tuners. + + V4L2_TUNER_CAP_RDS_BLOCK_IO + 0x0100 + The RDS data is passed as unparsed RDS blocks. + + + V4L2_TUNER_CAP_RDS_CONTROLS + 0x0200 + The RDS data is parsed by the hardware and set via controls. + -- cgit 1.4.1 From 0fb6ec6b1c185a1d99bf238880cc265d72ab111b Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 7 Nov 2011 08:30:20 -0300 Subject: [media] V4L2 Spec: clarify usage of V4L2_FBUF_FLAG_PRIMARY As per discussion during the 2011 V4L-DVB workshop. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml b/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml index 055718231bc1..109d7294d355 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml @@ -295,7 +295,8 @@ set this field to zero. The device is capable of non-destructive overlays. When the driver clears this flag, only destructive overlays are supported. There are no drivers yet which support both destructive and -non-destructive overlays. +non-destructive overlays. Video Output Overlays are in practice always +non-destructive. V4L2_FBUF_CAP_CHROMAKEY @@ -356,7 +357,9 @@ with the chroma-key colors are replaced by video pixels, which is exactly opposi V4L2_FBUF_FLAG_PRIMARY 0x0001 The framebuffer is the primary graphics surface. -In other words, the overlay is destructive. [?] +In other words, the overlay is destructive. This flag is typically set by any +driver that doesn't have the V4L2_FBUF_CAP_EXTERNOVERLAY +capability and it is cleared otherwise. V4L2_FBUF_FLAG_OVERLAY @@ -366,9 +369,8 @@ size as the capture. [?] The purpose of -V4L2_FBUF_FLAG_PRIMARY and V4L2_FBUF_FLAG_OVERLAY was never quite clear. -Most drivers seem to ignore these flags. For compatibility with the +Most drivers seem to ignore this flag. For compatibility with the bttv driver applications should set the V4L2_FBUF_FLAG_OVERLAY flag. -- cgit 1.4.1 From b698c784bfacc909b05e043d8fca08281fe154bb Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 9 Nov 2011 10:53:01 -0300 Subject: [media] V4L2 spec: fix the description of V4L2_FBUF_CAP_SRC_CHROMAKEY V4L2_FBUF_CAP_SRC_CHROMAKEY is the opposite of V4L2_FBUF_CAP_CHROMAKEY, but according to the documentation it was the same. The terms 'video' and 'framebuffer' were accidentally swapped in the text. Signed-off-by: Hans Verkuil CC: Vaibhav Hiremath Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml b/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml index 109d7294d355..93817f337033 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml @@ -340,8 +340,8 @@ blending makes no sense for destructive overlays. V4L2_FBUF_CAP_SRC_CHROMAKEY 0x0080 - The device supports Source Chroma-keying. Framebuffer pixels -with the chroma-key colors are replaced by video pixels, which is exactly opposite of + The device supports Source Chroma-keying. Video pixels +with the chroma-key colors are replaced by framebuffer pixels, which is exactly opposite of V4L2_FBUF_CAP_CHROMAKEY -- cgit 1.4.1 From c6401af6692bac94b7ae1ff04f1d32c5dd1a38e3 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Sat, 3 Dec 2011 08:37:06 -0300 Subject: [media] Remove unneeded comments from the media API DocBook files This removes comment tags intended for emacs configuration from 67 files in the Media API DocBook. Such comments are not really helpful and violate the coding style rules. Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/biblio.xml | 8 -------- Documentation/DocBook/media/v4l/common.xml | 8 -------- Documentation/DocBook/media/v4l/compat.xml | 10 +--------- Documentation/DocBook/media/v4l/controls.xml | 8 -------- Documentation/DocBook/media/v4l/dev-capture.xml | 8 -------- Documentation/DocBook/media/v4l/dev-codec.xml | 8 -------- Documentation/DocBook/media/v4l/dev-effect.xml | 8 -------- Documentation/DocBook/media/v4l/dev-event.xml | 8 -------- Documentation/DocBook/media/v4l/dev-osd.xml | 8 -------- Documentation/DocBook/media/v4l/dev-output.xml | 8 -------- Documentation/DocBook/media/v4l/dev-overlay.xml | 8 -------- Documentation/DocBook/media/v4l/dev-radio.xml | 8 -------- Documentation/DocBook/media/v4l/dev-raw-vbi.xml | 8 -------- Documentation/DocBook/media/v4l/dev-rds.xml | 8 -------- Documentation/DocBook/media/v4l/dev-sliced-vbi.xml | 9 --------- Documentation/DocBook/media/v4l/dev-teletext.xml | 8 -------- Documentation/DocBook/media/v4l/driver.xml | 8 -------- Documentation/DocBook/media/v4l/func-close.xml | 8 -------- Documentation/DocBook/media/v4l/func-ioctl.xml | 8 -------- Documentation/DocBook/media/v4l/func-mmap.xml | 8 -------- Documentation/DocBook/media/v4l/func-munmap.xml | 8 -------- Documentation/DocBook/media/v4l/func-open.xml | 8 -------- Documentation/DocBook/media/v4l/func-poll.xml | 8 -------- Documentation/DocBook/media/v4l/func-read.xml | 8 -------- Documentation/DocBook/media/v4l/func-select.xml | 8 -------- Documentation/DocBook/media/v4l/func-write.xml | 8 -------- Documentation/DocBook/media/v4l/io.xml | 8 -------- Documentation/DocBook/media/v4l/libv4l.xml | 7 ------- Documentation/DocBook/media/v4l/pixfmt-grey.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-m420.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-nv12.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-nv12m.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-nv12mt.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-nv16.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-packed-yuv.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-sbggr16.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-sbggr8.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-sgbrg8.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-sgrbg8.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-uyvy.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-vyuy.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-y16.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-y41p.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-yuv410.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-yuv411p.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-yuv420.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-yuv422p.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-yuyv.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt-yvyu.xml | 8 -------- Documentation/DocBook/media/v4l/pixfmt.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-enum-dv-presets.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-enum-fmt.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-enuminput.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-enumoutput.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-enumstd.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml | 7 ------- Documentation/DocBook/media/v4l/vidioc-g-frequency.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-g-modulator.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-g-priority.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-g-std.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-g-tuner.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-querybuf.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-queryctrl.xml | 8 -------- Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml | 8 -------- 67 files changed, 1 insertion(+), 536 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/biblio.xml b/Documentation/DocBook/media/v4l/biblio.xml index afc8a0dd2601..cea6fd3ed428 100644 --- a/Documentation/DocBook/media/v4l/biblio.xml +++ b/Documentation/DocBook/media/v4l/biblio.xml @@ -178,11 +178,3 @@ in the frequency range from 87,5 to 108,0 MHz - - diff --git a/Documentation/DocBook/media/v4l/common.xml b/Documentation/DocBook/media/v4l/common.xml index a86f7a045529..9d3919831eba 100644 --- a/Documentation/DocBook/media/v4l/common.xml +++ b/Documentation/DocBook/media/v4l/common.xml @@ -1195,11 +1195,3 @@ separate parameters for input and output devices. These ioctls are optional, drivers need not implement them. If so, they return the &EINVAL;. - - diff --git a/Documentation/DocBook/media/v4l/compat.xml b/Documentation/DocBook/media/v4l/compat.xml index b68698f96e7f..8b44a43f4542 100644 --- a/Documentation/DocBook/media/v4l/compat.xml +++ b/Documentation/DocBook/media/v4l/compat.xml @@ -1082,7 +1082,7 @@ until the time in the timestamp field has arrived. I would like to follow SGI's lead, and adopt a multimedia timestamping system like their UST (Unadjusted System Time). See http://web.archive.org/web/*/http://reality.sgi.com -/cpirazzi_engr/lg/time/intro.html. +/cpirazzi_engr/lg/time/intro.html. UST uses timestamps that are 64-bit signed integers (not struct timeval's) and given in nanosecond units. The UST clock starts at zero when the system is booted and runs continuously and @@ -2507,11 +2507,3 @@ interfaces and should not be implemented in new drivers. - - diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index 3bc5ee8b2c74..9e72f077329a 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -3357,11 +3357,3 @@ interface and may change in the future. - - diff --git a/Documentation/DocBook/media/v4l/dev-capture.xml b/Documentation/DocBook/media/v4l/dev-capture.xml index 2237c661f26a..e1c5f9406d6a 100644 --- a/Documentation/DocBook/media/v4l/dev-capture.xml +++ b/Documentation/DocBook/media/v4l/dev-capture.xml @@ -108,11 +108,3 @@ linkend="mmap">memory mapping or user pointer) I/O. See for details. - - diff --git a/Documentation/DocBook/media/v4l/dev-codec.xml b/Documentation/DocBook/media/v4l/dev-codec.xml index 6e156dc45b94..dca0ecd54dc6 100644 --- a/Documentation/DocBook/media/v4l/dev-codec.xml +++ b/Documentation/DocBook/media/v4l/dev-codec.xml @@ -16,11 +16,3 @@ Applications send data to be converted to the driver through a I/O. [to do] - - diff --git a/Documentation/DocBook/media/v4l/dev-effect.xml b/Documentation/DocBook/media/v4l/dev-effect.xml index 9c243beba0e6..2350a67c0710 100644 --- a/Documentation/DocBook/media/v4l/dev-effect.xml +++ b/Documentation/DocBook/media/v4l/dev-effect.xml @@ -15,11 +15,3 @@ receive the result data either with &func-read; and &func-write; functions, or through the streaming I/O mechanism. [to do] - - diff --git a/Documentation/DocBook/media/v4l/dev-event.xml b/Documentation/DocBook/media/v4l/dev-event.xml index f14ae3fe107c..19f4becfae34 100644 --- a/Documentation/DocBook/media/v4l/dev-event.xml +++ b/Documentation/DocBook/media/v4l/dev-event.xml @@ -41,11 +41,3 @@ intermediate step leading up to that information. See the documentation for the event you want to subscribe to whether this is applicable for that event or not. - - diff --git a/Documentation/DocBook/media/v4l/dev-osd.xml b/Documentation/DocBook/media/v4l/dev-osd.xml index c9a68a2ccd33..479d9433869a 100644 --- a/Documentation/DocBook/media/v4l/dev-osd.xml +++ b/Documentation/DocBook/media/v4l/dev-osd.xml @@ -154,11 +154,3 @@ data flow. For more information see . however the framebuffer interface of the driver may support the FBIOBLANK ioctl. - - diff --git a/Documentation/DocBook/media/v4l/dev-output.xml b/Documentation/DocBook/media/v4l/dev-output.xml index 919e22c53854..9130a3dc7880 100644 --- a/Documentation/DocBook/media/v4l/dev-output.xml +++ b/Documentation/DocBook/media/v4l/dev-output.xml @@ -104,11 +104,3 @@ linkend="mmap">memory mapping or user pointer) I/O. See for details. - - diff --git a/Documentation/DocBook/media/v4l/dev-overlay.xml b/Documentation/DocBook/media/v4l/dev-overlay.xml index 92513cf79150..40d1d7681439 100644 --- a/Documentation/DocBook/media/v4l/dev-overlay.xml +++ b/Documentation/DocBook/media/v4l/dev-overlay.xml @@ -369,11 +369,3 @@ reasons. diff --git a/Documentation/DocBook/media/v4l/dev-radio.xml b/Documentation/DocBook/media/v4l/dev-radio.xml index 73aa90b45b34..3e6ac73b36af 100644 --- a/Documentation/DocBook/media/v4l/dev-radio.xml +++ b/Documentation/DocBook/media/v4l/dev-radio.xml @@ -47,11 +47,3 @@ depending on the selected frequency. The &VIDIOC-G-TUNER; or &VIDIOC-G-MODULATOR; ioctl reports the supported frequency range. - - diff --git a/Documentation/DocBook/media/v4l/dev-raw-vbi.xml b/Documentation/DocBook/media/v4l/dev-raw-vbi.xml index c5a70bdfaf27..b788c72c885e 100644 --- a/Documentation/DocBook/media/v4l/dev-raw-vbi.xml +++ b/Documentation/DocBook/media/v4l/dev-raw-vbi.xml @@ -337,11 +337,3 @@ an &EBUSY; if the required hardware resources are temporarily unavailable, for example the device is already in use by another process. - - diff --git a/Documentation/DocBook/media/v4l/dev-rds.xml b/Documentation/DocBook/media/v4l/dev-rds.xml index 7644b2ec88d7..38883a419e65 100644 --- a/Documentation/DocBook/media/v4l/dev-rds.xml +++ b/Documentation/DocBook/media/v4l/dev-rds.xml @@ -194,11 +194,3 @@ as follows: - - diff --git a/Documentation/DocBook/media/v4l/dev-sliced-vbi.xml b/Documentation/DocBook/media/v4l/dev-sliced-vbi.xml index 69e789fa7f7b..548f8ea28dee 100644 --- a/Documentation/DocBook/media/v4l/dev-sliced-vbi.xml +++ b/Documentation/DocBook/media/v4l/dev-sliced-vbi.xml @@ -697,12 +697,3 @@ Sliced VBI services for a description of the line payload. - - - diff --git a/Documentation/DocBook/media/v4l/dev-teletext.xml b/Documentation/DocBook/media/v4l/dev-teletext.xml index 414b1cfff9f4..bd21c64d70f3 100644 --- a/Documentation/DocBook/media/v4l/dev-teletext.xml +++ b/Documentation/DocBook/media/v4l/dev-teletext.xml @@ -27,11 +27,3 @@ kernel 2.6.37. Modern devices all use the raw or sliced VBI API. - - diff --git a/Documentation/DocBook/media/v4l/driver.xml b/Documentation/DocBook/media/v4l/driver.xml index 1f7eea5c4ec3..eacafe312cd2 100644 --- a/Documentation/DocBook/media/v4l/driver.xml +++ b/Documentation/DocBook/media/v4l/driver.xml @@ -198,11 +198,3 @@ devices with the videodev module. to do --> - - diff --git a/Documentation/DocBook/media/v4l/func-close.xml b/Documentation/DocBook/media/v4l/func-close.xml index dfb41cbbbec3..232920d2f3c6 100644 --- a/Documentation/DocBook/media/v4l/func-close.xml +++ b/Documentation/DocBook/media/v4l/func-close.xml @@ -60,11 +60,3 @@ descriptor. - - diff --git a/Documentation/DocBook/media/v4l/func-ioctl.xml b/Documentation/DocBook/media/v4l/func-ioctl.xml index 2de64be706f5..4394184a1a6d 100644 --- a/Documentation/DocBook/media/v4l/func-ioctl.xml +++ b/Documentation/DocBook/media/v4l/func-ioctl.xml @@ -69,11 +69,3 @@ their respective function and parameters are specified in - - diff --git a/Documentation/DocBook/media/v4l/func-mmap.xml b/Documentation/DocBook/media/v4l/func-mmap.xml index 786732b64bbd..f31ad71bf301 100644 --- a/Documentation/DocBook/media/v4l/func-mmap.xml +++ b/Documentation/DocBook/media/v4l/func-mmap.xml @@ -181,11 +181,3 @@ complete the request. - - diff --git a/Documentation/DocBook/media/v4l/func-munmap.xml b/Documentation/DocBook/media/v4l/func-munmap.xml index e2c4190f9bb6..860d49ca54a5 100644 --- a/Documentation/DocBook/media/v4l/func-munmap.xml +++ b/Documentation/DocBook/media/v4l/func-munmap.xml @@ -74,11 +74,3 @@ mapped yet. - - diff --git a/Documentation/DocBook/media/v4l/func-open.xml b/Documentation/DocBook/media/v4l/func-open.xml index 7595d07a8c72..cf64e207c3ee 100644 --- a/Documentation/DocBook/media/v4l/func-open.xml +++ b/Documentation/DocBook/media/v4l/func-open.xml @@ -111,11 +111,3 @@ system has been reached. - - diff --git a/Documentation/DocBook/media/v4l/func-poll.xml b/Documentation/DocBook/media/v4l/func-poll.xml index ec3c718f5963..85cad8bff5ba 100644 --- a/Documentation/DocBook/media/v4l/func-poll.xml +++ b/Documentation/DocBook/media/v4l/func-poll.xml @@ -117,11 +117,3 @@ than OPEN_MAX. - - diff --git a/Documentation/DocBook/media/v4l/func-read.xml b/Documentation/DocBook/media/v4l/func-read.xml index a5089bf8873d..e218bbfbd362 100644 --- a/Documentation/DocBook/media/v4l/func-read.xml +++ b/Documentation/DocBook/media/v4l/func-read.xml @@ -179,11 +179,3 @@ type of device. - - diff --git a/Documentation/DocBook/media/v4l/func-select.xml b/Documentation/DocBook/media/v4l/func-select.xml index b6713623181f..e12a60d9bd85 100644 --- a/Documentation/DocBook/media/v4l/func-select.xml +++ b/Documentation/DocBook/media/v4l/func-select.xml @@ -128,11 +128,3 @@ zero or greater than FD_SETSIZE. - - diff --git a/Documentation/DocBook/media/v4l/func-write.xml b/Documentation/DocBook/media/v4l/func-write.xml index 2c09c09371c3..575207885726 100644 --- a/Documentation/DocBook/media/v4l/func-write.xml +++ b/Documentation/DocBook/media/v4l/func-write.xml @@ -126,11 +126,3 @@ type of device. - - diff --git a/Documentation/DocBook/media/v4l/io.xml b/Documentation/DocBook/media/v4l/io.xml index 3f47df1aa54a..b815929b5bba 100644 --- a/Documentation/DocBook/media/v4l/io.xml +++ b/Documentation/DocBook/media/v4l/io.xml @@ -1282,11 +1282,3 @@ line, top field first. The bottom field is transmitted first. - - diff --git a/Documentation/DocBook/media/v4l/libv4l.xml b/Documentation/DocBook/media/v4l/libv4l.xml index 3cb10ec51929..d3b71e20003c 100644 --- a/Documentation/DocBook/media/v4l/libv4l.xml +++ b/Documentation/DocBook/media/v4l/libv4l.xml @@ -158,10 +158,3 @@ still don't use libv4l. - diff --git a/Documentation/DocBook/media/v4l/pixfmt-grey.xml b/Documentation/DocBook/media/v4l/pixfmt-grey.xml index 3b72bc6b2de7..bee970d3f76d 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-grey.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-grey.xml @@ -60,11 +60,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-m420.xml b/Documentation/DocBook/media/v4l/pixfmt-m420.xml index ce4bc019e5c0..aadae92c5d04 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-m420.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-m420.xml @@ -137,11 +137,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-nv12.xml b/Documentation/DocBook/media/v4l/pixfmt-nv12.xml index 873f67035181..84dd4fd7cb80 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-nv12.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-nv12.xml @@ -141,11 +141,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml b/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml index c9e166d9ded8..3fd3ce5df270 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml @@ -144,11 +144,3 @@ CbCr plane has as many pad bytes after its rows. - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-nv12mt.xml b/Documentation/DocBook/media/v4l/pixfmt-nv12mt.xml index 7a2855a526c1..2f82b1da8dfe 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-nv12mt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-nv12mt.xml @@ -64,11 +64,3 @@ layout of macroblocks - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-nv16.xml b/Documentation/DocBook/media/v4l/pixfmt-nv16.xml index 26094035fc04..8ae1f8a810d0 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-nv16.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-nv16.xml @@ -164,11 +164,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml b/Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml index 4db272b8a0d3..ba56536622f2 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml @@ -930,11 +930,3 @@ See &v4l-dvb; for access instructions. - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-packed-yuv.xml b/Documentation/DocBook/media/v4l/pixfmt-packed-yuv.xml index 3cab5d0ca75d..33fa5a47a865 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-packed-yuv.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-packed-yuv.xml @@ -234,11 +234,3 @@ linkend="osd">Video Output Overlay. - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-sbggr16.xml b/Documentation/DocBook/media/v4l/pixfmt-sbggr16.xml index 519a9efbac10..6494b05d84a1 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-sbggr16.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-sbggr16.xml @@ -81,11 +81,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-sbggr8.xml b/Documentation/DocBook/media/v4l/pixfmt-sbggr8.xml index 5fe84ecc2ebe..5eaf2b42d3f7 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-sbggr8.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-sbggr8.xml @@ -65,11 +65,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-sgbrg8.xml b/Documentation/DocBook/media/v4l/pixfmt-sgbrg8.xml index d67a472b0880..fee65dca79c5 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-sgbrg8.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-sgbrg8.xml @@ -65,11 +65,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-sgrbg8.xml b/Documentation/DocBook/media/v4l/pixfmt-sgrbg8.xml index 0cdf13b8ac1c..19727ab4c757 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-sgrbg8.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-sgrbg8.xml @@ -65,11 +65,3 @@ columns and rows. - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-uyvy.xml b/Documentation/DocBook/media/v4l/pixfmt-uyvy.xml index 816c8d467c16..b1f6801a17ff 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-uyvy.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-uyvy.xml @@ -118,11 +118,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-vyuy.xml b/Documentation/DocBook/media/v4l/pixfmt-vyuy.xml index 61f12a5e68d9..82803408b389 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-vyuy.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-vyuy.xml @@ -118,11 +118,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-y16.xml b/Documentation/DocBook/media/v4l/pixfmt-y16.xml index d58404015078..ff4f727d5624 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-y16.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-y16.xml @@ -79,11 +79,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-y41p.xml b/Documentation/DocBook/media/v4l/pixfmt-y41p.xml index 73c8536efb05..98dcb91d2917 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-y41p.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-y41p.xml @@ -147,11 +147,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv410.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv410.xml index 8eb4a193d770..0869dce5f92c 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yuv410.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv410.xml @@ -131,11 +131,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv411p.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv411p.xml index 00e0960a9869..086dc731bf02 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yuv411p.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv411p.xml @@ -145,11 +145,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv420.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv420.xml index 42d7de5e456d..48649fac1596 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yuv420.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv420.xml @@ -147,11 +147,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml index f5d8f57495c8..9957863daf18 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml @@ -152,11 +152,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv422p.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv422p.xml index 4348bd9f0d01..4ce6463fe0a5 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yuv422p.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv422p.xml @@ -151,11 +151,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuyv.xml b/Documentation/DocBook/media/v4l/pixfmt-yuyv.xml index bdb2ffacbbcc..58384092251a 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yuyv.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuyv.xml @@ -118,11 +118,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt-yvyu.xml b/Documentation/DocBook/media/v4l/pixfmt-yvyu.xml index 40d17ae39dde..bfffdc76d3da 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yvyu.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yvyu.xml @@ -118,11 +118,3 @@ pixel image - - diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml index 2ff6b7776d7f..a33a4b22173b 100644 --- a/Documentation/DocBook/media/v4l/pixfmt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt.xml @@ -997,11 +997,3 @@ the other bits are set to 0. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-enum-dv-presets.xml b/Documentation/DocBook/media/v4l/vidioc-enum-dv-presets.xml index 1d31427edd1b..0be17c232d3a 100644 --- a/Documentation/DocBook/media/v4l/vidioc-enum-dv-presets.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enum-dv-presets.xml @@ -228,11 +228,3 @@ is out of bounds. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-enum-fmt.xml b/Documentation/DocBook/media/v4l/vidioc-enum-fmt.xml index 71d373b6d36a..347d142e7431 100644 --- a/Documentation/DocBook/media/v4l/vidioc-enum-fmt.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enum-fmt.xml @@ -156,11 +156,3 @@ bounds. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-enuminput.xml b/Documentation/DocBook/media/v4l/vidioc-enuminput.xml index 476fe1d2bba0..9b8efcd6e947 100644 --- a/Documentation/DocBook/media/v4l/vidioc-enuminput.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enuminput.xml @@ -311,11 +311,3 @@ out of bounds. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-enumoutput.xml b/Documentation/DocBook/media/v4l/vidioc-enumoutput.xml index a281d26a195f..a64d5ef103fa 100644 --- a/Documentation/DocBook/media/v4l/vidioc-enumoutput.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enumoutput.xml @@ -196,11 +196,3 @@ is out of bounds. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-enumstd.xml b/Documentation/DocBook/media/v4l/vidioc-enumstd.xml index 95803fe2c8e4..3a5fc5405f96 100644 --- a/Documentation/DocBook/media/v4l/vidioc-enumstd.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enumstd.xml @@ -381,11 +381,3 @@ is out of bounds. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml b/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml index 5146d00782e3..12b1d0503e26 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml @@ -127,11 +127,3 @@ this control belongs to. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml index 5122ce87e0b8..6f1f9a629dc3 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml @@ -312,10 +312,3 @@ to store the payload and this error code is returned. - diff --git a/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml b/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml index 062d72069090..16431813bebd 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml @@ -135,11 +135,3 @@ wrong. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml b/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml index 15ce660f0f5a..7f4ac7e41fa8 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml @@ -236,11 +236,3 @@ mode. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-g-priority.xml b/Documentation/DocBook/media/v4l/vidioc-g-priority.xml index 8f5e3da7002f..6a81b4fe9538 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-priority.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-priority.xml @@ -133,11 +133,3 @@ priority. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-g-std.xml b/Documentation/DocBook/media/v4l/vidioc-g-std.xml index 37996f25b5d4..99ff1a016220 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-std.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-std.xml @@ -88,11 +88,3 @@ standards. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml b/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml index b23a4b097b34..91ec2fb658f8 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml @@ -535,11 +535,3 @@ out of bounds. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-querybuf.xml b/Documentation/DocBook/media/v4l/vidioc-querybuf.xml index 5c104d42d31c..6e414d7b6df7 100644 --- a/Documentation/DocBook/media/v4l/vidioc-querybuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-querybuf.xml @@ -100,11 +100,3 @@ supported, or the index is out of bounds. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-queryctrl.xml b/Documentation/DocBook/media/v4l/vidioc-queryctrl.xml index 0ac0057a51c4..36660d311b51 100644 --- a/Documentation/DocBook/media/v4l/vidioc-queryctrl.xml +++ b/Documentation/DocBook/media/v4l/vidioc-queryctrl.xml @@ -443,11 +443,3 @@ or this particular menu item is not supported by the driver. - - diff --git a/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml b/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml index c30dcc4232c0..e013da845b11 100644 --- a/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml +++ b/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml @@ -125,11 +125,3 @@ wrong. - - -- cgit 1.4.1 From 6c7ef54774a28aec6268ca325abf95c7d6956ee3 Mon Sep 17 00:00:00 2001 From: Manu Abraham Date: Wed, 16 Nov 2011 10:34:24 -0300 Subject: [media] DVB: Docbook update for DTV_ENUM_DELSYS Signed-off-by: Manu Abraham Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/dvb/dvbproperty.xml | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml index 6ac803959a47..b812e3140fcb 100644 --- a/Documentation/DocBook/media/dvb/dvbproperty.xml +++ b/Documentation/DocBook/media/dvb/dvbproperty.xml @@ -649,6 +649,18 @@ typedef enum fe_hierarchy { many data types via a single multiplex. The API will soon support this at which point this section will be expanded. +
+ <constant>DTV_ENUM_DELSYS</constant> + A Multi standard frontend needs to advertise the delivery systems provided. + Applications need to enumerate the provided delivery systems, before using + any other operation with the frontend. Prior to it's introduction, + FE_GET_INFO was used to determine a frontend type. A frontend which + provides more than a single delivery system, FE_GET_INFO doesn't help much. + Applications which intends to use a multistandard frontend must enumerate + the delivery systems associated with it, rather than trying to use + FE_GET_INFO. In the case of a legacy frontend, the result is just the same + as with FE_GET_INFO, but in a more structured format +
Properties used on terrestrial delivery systems -- cgit 1.4.1 From 0b9eabd77f4867232a9ac6ca54fa39607b0c9bc7 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 13 Dec 2011 14:02:27 +0100 Subject: v4l: Add V4L2_PIX_FMT_NV24 and V4L2_PIX_FMT_NV42 formats NV24 and NV42 are planar YCbCr 4:4:4 and YCrCb 4:4:4 formats with a luma plane followed by an interleaved chroma plane. Signed-off-by: Laurent Pinchart Acked-by: Mauro Carvalho Chehab Signed-off-by: Florian Tobias Schandinat --- Documentation/DocBook/media/v4l/pixfmt-nv24.xml | 121 ++++++++++++++++++++++++ Documentation/DocBook/media/v4l/pixfmt.xml | 1 + include/linux/videodev2.h | 2 + 3 files changed, 124 insertions(+) create mode 100644 Documentation/DocBook/media/v4l/pixfmt-nv24.xml (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/pixfmt-nv24.xml b/Documentation/DocBook/media/v4l/pixfmt-nv24.xml new file mode 100644 index 000000000000..fb255f2ca9dd --- /dev/null +++ b/Documentation/DocBook/media/v4l/pixfmt-nv24.xml @@ -0,0 +1,121 @@ + + + V4L2_PIX_FMT_NV24 ('NV24'), V4L2_PIX_FMT_NV42 ('NV42') + &manvol; + + + V4L2_PIX_FMT_NV24 + V4L2_PIX_FMT_NV42 + Formats with full horizontal and vertical +chroma resolutions, also known as YUV 4:4:4. One luminance and one +chrominance plane with alternating chroma samples as opposed to +V4L2_PIX_FMT_YVU420 + + + Description + + These are two-plane versions of the YUV 4:4:4 format. The three + components are separated into two sub-images or planes. The Y plane is + first, with each Y sample stored in one byte per pixel. For + V4L2_PIX_FMT_NV24, a combined CbCr plane + immediately follows the Y plane in memory. The CbCr plane has the same + width and height, in pixels, as the Y plane (and the image). Each line + contains one CbCr pair per pixel, with each Cb and Cr sample stored in + one byte. V4L2_PIX_FMT_NV42 is the same except that + the Cb and Cr samples are swapped, the CrCb plane starts with a Cr + sample. + + If the Y plane has pad bytes after each row, then the CbCr plane + has twice as many pad bytes after its rows. + + + <constant>V4L2_PIX_FMT_NV24</constant> 4 × 4 +pixel image + + + Byte Order. + Each cell is one byte. + + + + + + start + 0: + Y'00 + Y'01 + Y'02 + Y'03 + + + start + 4: + Y'10 + Y'11 + Y'12 + Y'13 + + + start + 8: + Y'20 + Y'21 + Y'22 + Y'23 + + + start + 12: + Y'30 + Y'31 + Y'32 + Y'33 + + + start + 16: + Cb00 + Cr00 + Cb01 + Cr01 + Cb02 + Cr02 + Cb03 + Cr03 + + + start + 24: + Cb10 + Cr10 + Cb11 + Cr11 + Cb12 + Cr12 + Cb13 + Cr13 + + + start + 32: + Cb20 + Cr20 + Cb21 + Cr21 + Cb22 + Cr22 + Cb23 + Cr23 + + + start + 40: + Cb30 + Cr30 + Cb31 + Cr31 + Cb32 + Cr32 + Cb33 + Cr33 + + + + + + + + + diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml index 2ff6b7776d7f..aef4615fb07b 100644 --- a/Documentation/DocBook/media/v4l/pixfmt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt.xml @@ -714,6 +714,7 @@ information. &sub-nv12m; &sub-nv12mt; &sub-nv16; + &sub-nv24; &sub-m420;
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 4b752d5ee80e..d2f74f8e3fe3 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -343,6 +343,8 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_NV21 v4l2_fourcc('N', 'V', '2', '1') /* 12 Y/CrCb 4:2:0 */ #define V4L2_PIX_FMT_NV16 v4l2_fourcc('N', 'V', '1', '6') /* 16 Y/CbCr 4:2:2 */ #define V4L2_PIX_FMT_NV61 v4l2_fourcc('N', 'V', '6', '1') /* 16 Y/CrCb 4:2:2 */ +#define V4L2_PIX_FMT_NV24 v4l2_fourcc('N', 'V', '2', '4') /* 24 Y/CbCr 4:4:4 */ +#define V4L2_PIX_FMT_NV42 v4l2_fourcc('N', 'V', '4', '2') /* 24 Y/CrCb 4:4:4 */ /* two non contiguous planes - one Y, one Cr + Cb interleaved */ #define V4L2_PIX_FMT_NV12M v4l2_fourcc('N', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 */ -- cgit 1.4.1 From a597fa78d374c57dcf9a9bac02472a530cd7e60a Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 10 Jun 2011 12:23:30 -0300 Subject: [media] v4l: Add over-current and indicator flash fault bits Flash controllers can report over-current and indicator fault conditions. Define flash fault control bits for them. Signed-off-by: Laurent Pinchart Acked-by: Andy Shevchenko Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/controls.xml | 10 ++++++++++ include/linux/videodev2.h | 2 ++ 2 files changed, 12 insertions(+) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index 9e72f077329a..c0422c622337 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -3329,6 +3329,16 @@ interface and may change in the future. The short circuit protection of the flash controller has been triggered. + + V4L2_FLASH_FAULT_OVER_CURRENT + Current in the LED power supply has exceeded the limit + specific to the flash controller. + + + V4L2_FLASH_FAULT_INDICATOR + The flash controller has detected a short or open + circuit condition on the indicator LED. + diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 4b752d5ee80e..3d62631839bc 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1682,6 +1682,8 @@ enum v4l2_flash_strobe_source { #define V4L2_FLASH_FAULT_TIMEOUT (1 << 1) #define V4L2_FLASH_FAULT_OVER_TEMPERATURE (1 << 2) #define V4L2_FLASH_FAULT_SHORT_CIRCUIT (1 << 3) +#define V4L2_FLASH_FAULT_OVER_CURRENT (1 << 4) +#define V4L2_FLASH_FAULT_INDICATOR (1 << 5) #define V4L2_CID_FLASH_CHARGE (V4L2_CID_FLASH_CLASS_BASE + 11) #define V4L2_CID_FLASH_READY (V4L2_CID_FLASH_CLASS_BASE + 12) -- cgit 1.4.1 From 669a4ba44d6054f147ef123b0c9a640e49c518e0 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sat, 17 Dec 2011 20:36:56 -0300 Subject: [media] Update documentation to reflect DVB-C Annex A/C support Instead of using the same delivery system for both Annex A and Annex C, split them into two separate ones. This helps to support devices that only support Annex A. Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/dvb/dvbproperty.xml | 11 +++++------ Documentation/DocBook/media/dvb/frontend.xml | 4 ++-- 2 files changed, 7 insertions(+), 8 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml index b812e3140fcb..ffee1fbbc001 100644 --- a/Documentation/DocBook/media/dvb/dvbproperty.xml +++ b/Documentation/DocBook/media/dvb/dvbproperty.xml @@ -311,8 +311,6 @@ typedef enum fe_rolloff { ROLLOFF_20, ROLLOFF_25, ROLLOFF_AUTO, - ROLLOFF_15, /* DVB-C Annex A */ - ROLLOFF_13, /* DVB-C Annex C */ } fe_rolloff_t; @@ -336,9 +334,10 @@ typedef enum fe_rolloff { fe_delivery_system type Possible values: + typedef enum fe_delivery_system { SYS_UNDEFINED, - SYS_DVBC_ANNEX_AC, + SYS_DVBC_ANNEX_A, SYS_DVBC_ANNEX_B, SYS_DVBT, SYS_DSS, @@ -355,6 +354,7 @@ typedef enum fe_delivery_system { SYS_DAB, SYS_DVBT2, SYS_TURBO, + SYS_DVBC_ANNEX_C, } fe_delivery_system_t; @@ -781,7 +781,8 @@ typedef enum fe_hierarchy { Properties used on cable delivery systems
DVB-C delivery system - The DVB-C Annex-A/C is the widely used cable standard. Transmission uses QAM modulation. + The DVB-C Annex-A is the widely used cable standard. Transmission uses QAM modulation. + The DVB-C Annex-C is optimized for 6MHz, and is used in Japan. It supports a subset of the Annex A modulation types, and a roll-off of 0.13, instead of 0.15 The following parameters are valid for DVB-C Annex A/C: DTV_API_VERSION @@ -792,10 +793,8 @@ typedef enum fe_hierarchy { DTV_MODULATION DTV_INVERSION DTV_SYMBOL_RATE - DTV_ROLLOFF DTV_INNER_FEC - The Rolloff of 0.15 (ROLLOFF_15) is assumed, as ITU-T J.83 Annex A is more common. For Annex C, rolloff should be 0.13 (ROLLOFF_13). All other values are invalid.
DVB-C Annex B delivery system diff --git a/Documentation/DocBook/media/dvb/frontend.xml b/Documentation/DocBook/media/dvb/frontend.xml index 61407eaba020..28d7ea5d5e73 100644 --- a/Documentation/DocBook/media/dvb/frontend.xml +++ b/Documentation/DocBook/media/dvb/frontend.xml @@ -45,8 +45,8 @@ transmission. The fontend types are given by fe_type_t type, defined as: FE_QAM - For DVB-C annex A/C standard - SYS_DVBC_ANNEX_AC + For DVB-C annex A standard + SYS_DVBC_ANNEX_A FE_OFDM -- cgit 1.4.1 From cc1d327232759647ea56725eab1c6b16c92d52fa Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Mon, 14 Nov 2011 08:48:18 -0300 Subject: [media] v4l: Add new alpha component control The V4L2_CID_ALPHA_COMPONENT control is intended for the video capture or memory-to-memory devices that are capable of setting up the per-pixel alpha component to some arbitrary value. It allows to set the alpha component for all pixels to an arbitrary value. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/compat.xml | 11 ++++++++++ Documentation/DocBook/media/v4l/controls.xml | 25 ++++++++++++++++------ .../DocBook/media/v4l/pixfmt-packed-rgb.xml | 7 ++++-- drivers/media/video/v4l2-ctrls.c | 1 + include/linux/videodev2.h | 6 +++--- 5 files changed, 39 insertions(+), 11 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/compat.xml b/Documentation/DocBook/media/v4l/compat.xml index 8b44a43f4542..12ba26262d32 100644 --- a/Documentation/DocBook/media/v4l/compat.xml +++ b/Documentation/DocBook/media/v4l/compat.xml @@ -2379,6 +2379,17 @@ that used it. It was originally scheduled for removal in 2.6.35.
+
+ V4L2 in Linux 3.3 + + + Added V4L2_CID_ALPHA_COMPONENT control + to the User controls class. + + + +
+
Relation of V4L2 to other Linux multimedia APIs diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index c0422c622337..a1be37897ad7 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -323,12 +323,6 @@ minimum value disables backlight compensation. Switch on or off the illuminator 1 or 2 of the device (usually a microscope). - - V4L2_CID_LASTP1 - - End of the predefined control IDs (currently -V4L2_CID_ILLUMINATORS_2 + 1). - V4L2_CID_MIN_BUFFERS_FOR_CAPTURE integer @@ -345,6 +339,25 @@ and used as a hint to determine the number of OUTPUT buffers to pass to REQBUFS. The value is the minimum number of OUTPUT buffers that is necessary for hardware to work. + + V4L2_CID_ALPHA_COMPONENT + integer + Sets the alpha color component on the capture device or on + the capture buffer queue of a mem-to-mem device. When a mem-to-mem + device produces frame format that includes an alpha component + (e.g. packed RGB image formats) + and the alpha value is not defined by the mem-to-mem input data + this control lets you select the alpha component value of all + pixels. It is applicable to any pixel format that contains an alpha + component. + + + + V4L2_CID_LASTP1 + + End of the predefined control IDs (currently + V4L2_CID_ALPHA_COMPONENT + 1). + V4L2_CID_PRIVATE_BASE diff --git a/Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml b/Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml index ba56536622f2..166c8d65e4f7 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml @@ -428,8 +428,11 @@ colorspace V4L2_COLORSPACE_SRGB. Bit 7 is the most significant bit. The value of a = alpha bits is undefined when reading from the driver, ignored when writing to the driver, except when alpha blending has been negotiated for a -Video Overlay or Video Output Overlay. +Video Overlay or +Video Output Overlay or when alpha component has been configured +for a Video Capture by means of V4L2_CID_ALPHA_COMPONENT + control. <constant>V4L2_PIX_FMT_BGR24</constant> 4 × 4 pixel diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c index 0f415dade05a..39266153499f 100644 --- a/drivers/media/video/v4l2-ctrls.c +++ b/drivers/media/video/v4l2-ctrls.c @@ -467,6 +467,7 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_ILLUMINATORS_2: return "Illuminator 2"; case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE: return "Minimum Number of Capture Buffers"; case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT: return "Minimum Number of Output Buffers"; + case V4L2_CID_ALPHA_COMPONENT: return "Alpha Component"; /* MPEG controls */ /* Keep the order of the 'case's the same as in videodev2.h! */ diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 3d62631839bc..2965906a02c9 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1204,10 +1204,10 @@ enum v4l2_colorfx { #define V4L2_CID_MIN_BUFFERS_FOR_CAPTURE (V4L2_CID_BASE+39) #define V4L2_CID_MIN_BUFFERS_FOR_OUTPUT (V4L2_CID_BASE+40) -/* last CID + 1 */ -#define V4L2_CID_LASTP1 (V4L2_CID_BASE+41) +#define V4L2_CID_ALPHA_COMPONENT (V4L2_CID_BASE+41) -/* Minimum number of buffer neede by the device */ +/* last CID + 1 */ +#define V4L2_CID_LASTP1 (V4L2_CID_BASE+42) /* MPEG-class control IDs defined by V4L2 */ #define V4L2_CID_MPEG_BASE (V4L2_CTRL_CLASS_MPEG | 0x900) -- cgit 1.4.1 From cd7d494d0b23673215330963c28138dd0c3fd405 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab <mchehab@redhat.com> Date: Sun, 1 Jan 2012 16:11:17 -0300 Subject: [media] dvb: deprecate the usage of ops->info.type Mark info.type as deprecated inside the header, recommending the usage of DTV_ENUM_DELSYS DVBv5 command instead. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> --- Documentation/DocBook/media/dvb/frontend.xml | 4 ++++ include/linux/dvb/frontend.h | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/dvb/frontend.xml b/Documentation/DocBook/media/dvb/frontend.xml index 28d7ea5d5e73..aeaed59d0f1f 100644 --- a/Documentation/DocBook/media/dvb/frontend.xml +++ b/Documentation/DocBook/media/dvb/frontend.xml @@ -63,6 +63,10 @@ transmission. The fontend types are given by fe_type_t type, defined as:</para> <para>Newer formats like DVB-S2, ISDB-T, ISDB-S and DVB-T2 are not described at the above, as they're supported via the new <link linkend="FE_GET_SET_PROPERTY">FE_GET_PROPERTY/FE_GET_SET_PROPERTY</link> ioctl's, using the <link linkend="DTV-DELIVERY-SYSTEM">DTV_DELIVERY_SYSTEM</link> parameter. </para> + +<para>The usage of this field is deprecated, as it doesn't report all supported standards, and +will provide an incomplete information for frontends that support multiple delivery systems. +Please use <link linkend="DTV_ENUM_DELSYS">DTV_ENUM_DELSYS</link> instead.</para> </section> <section id="fe-caps-t"> diff --git a/include/linux/dvb/frontend.h b/include/linux/dvb/frontend.h index 7e7cb64f56d8..cb4428ab81ed 100644 --- a/include/linux/dvb/frontend.h +++ b/include/linux/dvb/frontend.h @@ -72,7 +72,7 @@ typedef enum fe_caps { struct dvb_frontend_info { char name[128]; - fe_type_t type; + fe_type_t type; /* DEPRECATED. Use DTV_ENUM_DELSYS instead */ __u32 frequency_min; __u32 frequency_max; __u32 frequency_stepsize; -- cgit 1.4.1 From fe3449a4aa4e62404cc1c57c945fd56152b2f877 Mon Sep 17 00:00:00 2001 From: Theodore Kilgore <kilgota@banach.math.auburn.edu> Date: Tue, 13 Dec 2011 18:09:15 -0300 Subject: [media] gspca: Add jl2005bcd sub driver Written by Theodore Kilgore With minor changes by Hans de Goede: -Code style fixes -Correct the verbose level on various PDEBUG messages -Make error messages use pr_err instead of PDEBUG -Document the jl20 pixel format Signed-off-by: Theodore Kilgore <kilgota@auburn.edu> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> --- Documentation/DocBook/media/v4l/pixfmt.xml | 5 + Documentation/video4linux/gspca.txt | 1 + drivers/media/video/gspca/Kconfig | 10 + drivers/media/video/gspca/Makefile | 2 + drivers/media/video/gspca/jl2005bcd.c | 554 +++++++++++++++++++++++++++++ include/linux/videodev2.h | 1 + 6 files changed, 573 insertions(+) create mode 100644 drivers/media/video/gspca/jl2005bcd.c (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml index a33a4b22173b..9ddc57cb2ef9 100644 --- a/Documentation/DocBook/media/v4l/pixfmt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt.xml @@ -890,6 +890,11 @@ kernel sources in the file <filename>Documentation/video4linux/cx2341x/README.hm <entry>'M310'</entry> <entry>Compressed BGGR Bayer format used by the gspca driver.</entry> </row> + <row id="V4L2-PIX-FMT-JL2005BCD"> + <entry><constant>V4L2_PIX_FMT_JL2005BCD</constant></entry> + <entry>'JL20'</entry> + <entry>JPEG compressed RGGB Bayer format used by the gspca driver.</entry> + </row> <row id="V4L2-PIX-FMT-OV511"> <entry><constant>V4L2_PIX_FMT_OV511</constant></entry> <entry>'O511'</entry> diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt index 393815b62810..f2060f0dc02c 100644 --- a/Documentation/video4linux/gspca.txt +++ b/Documentation/video4linux/gspca.txt @@ -279,6 +279,7 @@ pac7302 093a:2628 Genius iLook 300 pac7302 093a:2629 Genious iSlim 300 pac7302 093a:262a Webcam 300k pac7302 093a:262c Philips SPC 230 NC +jl2005bcd 0979:0227 Various brands, 19 known cameras supported jeilinj 0979:0280 Sakar 57379 jeilinj 0979:0280 Sportscam DV15 zc3xx 0ac8:0302 Z-star Vimicro zc0302 diff --git a/drivers/media/video/gspca/Kconfig b/drivers/media/video/gspca/Kconfig index 103af3fe5aa0..dfe268bfa4f8 100644 --- a/drivers/media/video/gspca/Kconfig +++ b/drivers/media/video/gspca/Kconfig @@ -77,6 +77,16 @@ config USB_GSPCA_JEILINJ To compile this driver as a module, choose M here: the module will be called gspca_jeilinj. +config USB_GSPCA_JL2005BCD + tristate "JL2005B/C/D USB V4L2 driver" + depends on VIDEO_V4L2 && USB_GSPCA + help + Say Y here if you want support for cameras based the + JL2005B, JL2005C, or JL2005D chip. + + To compile this driver as a module, choose M here: the + module will be called gspca_jl2005bcd. + config USB_GSPCA_KINECT tristate "Kinect sensor device USB Camera Driver" depends on VIDEO_V4L2 && USB_GSPCA diff --git a/drivers/media/video/gspca/Makefile b/drivers/media/video/gspca/Makefile index f345f494d0f3..79ebe46e1ad7 100644 --- a/drivers/media/video/gspca/Makefile +++ b/drivers/media/video/gspca/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_USB_GSPCA_CPIA1) += gspca_cpia1.o obj-$(CONFIG_USB_GSPCA_ETOMS) += gspca_etoms.o obj-$(CONFIG_USB_GSPCA_FINEPIX) += gspca_finepix.o obj-$(CONFIG_USB_GSPCA_JEILINJ) += gspca_jeilinj.o +obj-$(CONFIG_USB_GSPCA_JL2005BCD) += gspca_jl2005bcd.o obj-$(CONFIG_USB_GSPCA_KINECT) += gspca_kinect.o obj-$(CONFIG_USB_GSPCA_KONICA) += gspca_konica.o obj-$(CONFIG_USB_GSPCA_MARS) += gspca_mars.o @@ -49,6 +50,7 @@ gspca_cpia1-objs := cpia1.o gspca_etoms-objs := etoms.o gspca_finepix-objs := finepix.o gspca_jeilinj-objs := jeilinj.o +gspca_jl2005bcd-objs := jl2005bcd.o gspca_kinect-objs := kinect.o gspca_konica-objs := konica.o gspca_mars-objs := mars.o diff --git a/drivers/media/video/gspca/jl2005bcd.c b/drivers/media/video/gspca/jl2005bcd.c new file mode 100644 index 000000000000..53f58ef367cf --- /dev/null +++ b/drivers/media/video/gspca/jl2005bcd.c @@ -0,0 +1,554 @@ +/* + * Jeilin JL2005B/C/D library + * + * Copyright (C) 2011 Theodore Kilgore <kilgota@auburn.edu> + * + * 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; either version 2 of the License, or + * any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#define MODULE_NAME "jl2005bcd" + +#include <linux/workqueue.h> +#include <linux/slab.h> +#include "gspca.h" + + +MODULE_AUTHOR("Theodore Kilgore <kilgota@auburn.edu>"); +MODULE_DESCRIPTION("JL2005B/C/D USB Camera Driver"); +MODULE_LICENSE("GPL"); + +/* Default timeouts, in ms */ +#define JL2005C_CMD_TIMEOUT 500 +#define JL2005C_DATA_TIMEOUT 1000 + +/* Maximum transfer size to use. */ +#define JL2005C_MAX_TRANSFER 0x200 +#define FRAME_HEADER_LEN 16 + + +/* specific webcam descriptor */ +struct sd { + struct gspca_dev gspca_dev; /* !! must be the first item */ + unsigned char firmware_id[6]; + const struct v4l2_pix_format *cap_mode; + /* Driver stuff */ + struct work_struct work_struct; + struct workqueue_struct *work_thread; + u8 frame_brightness; + int block_size; /* block size of camera */ + int vga; /* 1 if vga cam, 0 if cif cam */ +}; + + +/* Camera has two resolution settings. What they are depends on model. */ +static const struct v4l2_pix_format cif_mode[] = { + {176, 144, V4L2_PIX_FMT_JL2005BCD, V4L2_FIELD_NONE, + .bytesperline = 176, + .sizeimage = 176 * 144, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0}, + {352, 288, V4L2_PIX_FMT_JL2005BCD, V4L2_FIELD_NONE, + .bytesperline = 352, + .sizeimage = 352 * 288, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0}, +}; + +static const struct v4l2_pix_format vga_mode[] = { + {320, 240, V4L2_PIX_FMT_JL2005BCD, V4L2_FIELD_NONE, + .bytesperline = 320, + .sizeimage = 320 * 240, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0}, + {640, 480, V4L2_PIX_FMT_JL2005BCD, V4L2_FIELD_NONE, + .bytesperline = 640, + .sizeimage = 640 * 480, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0}, +}; + +/* + * cam uses endpoint 0x03 to send commands, 0x84 for read commands, + * and 0x82 for bulk data transfer. + */ + +/* All commands are two bytes only */ +static int jl2005c_write2(struct gspca_dev *gspca_dev, unsigned char *command) +{ + int retval; + + memcpy(gspca_dev->usb_buf, command, 2); + retval = usb_bulk_msg(gspca_dev->dev, + usb_sndbulkpipe(gspca_dev->dev, 3), + gspca_dev->usb_buf, 2, NULL, 500); + if (retval < 0) + pr_err("command write [%02x] error %d\n", + gspca_dev->usb_buf[0], retval); + return retval; +} + +/* Response to a command is one byte in usb_buf[0], only if requested. */ +static int jl2005c_read1(struct gspca_dev *gspca_dev) +{ + int retval; + + retval = usb_bulk_msg(gspca_dev->dev, + usb_rcvbulkpipe(gspca_dev->dev, 0x84), + gspca_dev->usb_buf, 1, NULL, 500); + if (retval < 0) + pr_err("read command [0x%02x] error %d\n", + gspca_dev->usb_buf[0], retval); + return retval; +} + +/* Response appears in gspca_dev->usb_buf[0] */ +static int jl2005c_read_reg(struct gspca_dev *gspca_dev, unsigned char reg) +{ + int retval; + + static u8 instruction[2] = {0x95, 0x00}; + /* put register to read in byte 1 */ + instruction[1] = reg; + /* Send the read request */ + retval = jl2005c_write2(gspca_dev, instruction); + if (retval < 0) + return retval; + retval = jl2005c_read1(gspca_dev); + + return retval; +} + +static int jl2005c_start_new_frame(struct gspca_dev *gspca_dev) +{ + int i; + int retval; + int frame_brightness = 0; + + static u8 instruction[2] = {0x7f, 0x01}; + + retval = jl2005c_write2(gspca_dev, instruction); + if (retval < 0) + return retval; + + i = 0; + while (i < 20 && !frame_brightness) { + /* If we tried 20 times, give up. */ + retval = jl2005c_read_reg(gspca_dev, 0x7e); + if (retval < 0) + return retval; + frame_brightness = gspca_dev->usb_buf[0]; + retval = jl2005c_read_reg(gspca_dev, 0x7d); + if (retval < 0) + return retval; + i++; + } + PDEBUG(D_FRAM, "frame_brightness is 0x%02x", gspca_dev->usb_buf[0]); + return retval; +} + +static int jl2005c_write_reg(struct gspca_dev *gspca_dev, unsigned char reg, + unsigned char value) +{ + int retval; + u8 instruction[2]; + + instruction[0] = reg; + instruction[1] = value; + + retval = jl2005c_write2(gspca_dev, instruction); + if (retval < 0) + return retval; + + return retval; +} + +static int jl2005c_get_firmware_id(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *)gspca_dev; + int i = 0; + int retval = -1; + unsigned char regs_to_read[] = {0x57, 0x02, 0x03, 0x5d, 0x5e, 0x5f}; + + PDEBUG(D_PROBE, "Running jl2005c_get_firmware_id"); + /* Read the first ID byte once for warmup */ + retval = jl2005c_read_reg(gspca_dev, regs_to_read[0]); + PDEBUG(D_PROBE, "response is %02x", gspca_dev->usb_buf[0]); + if (retval < 0) + return retval; + /* Now actually get the ID string */ + for (i = 0; i < 6; i++) { + retval = jl2005c_read_reg(gspca_dev, regs_to_read[i]); + if (retval < 0) + return retval; + sd->firmware_id[i] = gspca_dev->usb_buf[0]; + } + PDEBUG(D_PROBE, "firmware ID is %02x%02x%02x%02x%02x%02x", + sd->firmware_id[0], + sd->firmware_id[1], + sd->firmware_id[2], + sd->firmware_id[3], + sd->firmware_id[4], + sd->firmware_id[5]); + return 0; +} + +static int jl2005c_stream_start_vga_lg + (struct gspca_dev *gspca_dev) +{ + int i; + int retval = -1; + static u8 instruction[][2] = { + {0x05, 0x00}, + {0x7c, 0x00}, + {0x7d, 0x18}, + {0x02, 0x00}, + {0x01, 0x00}, + {0x04, 0x52}, + }; + + for (i = 0; i < ARRAY_SIZE(instruction); i++) { + msleep(60); + retval = jl2005c_write2(gspca_dev, instruction[i]); + if (retval < 0) + return retval; + } + msleep(60); + return retval; +} + +static int jl2005c_stream_start_vga_small(struct gspca_dev *gspca_dev) +{ + int i; + int retval = -1; + static u8 instruction[][2] = { + {0x06, 0x00}, + {0x7c, 0x00}, + {0x7d, 0x1a}, + {0x02, 0x00}, + {0x01, 0x00}, + {0x04, 0x52}, + }; + + for (i = 0; i < ARRAY_SIZE(instruction); i++) { + msleep(60); + retval = jl2005c_write2(gspca_dev, instruction[i]); + if (retval < 0) + return retval; + } + msleep(60); + return retval; +} + +static int jl2005c_stream_start_cif_lg(struct gspca_dev *gspca_dev) +{ + int i; + int retval = -1; + static u8 instruction[][2] = { + {0x05, 0x00}, + {0x7c, 0x00}, + {0x7d, 0x30}, + {0x02, 0x00}, + {0x01, 0x00}, + {0x04, 0x42}, + }; + + for (i = 0; i < ARRAY_SIZE(instruction); i++) { + msleep(60); + retval = jl2005c_write2(gspca_dev, instruction[i]); + if (retval < 0) + return retval; + } + msleep(60); + return retval; +} + +static int jl2005c_stream_start_cif_small(struct gspca_dev *gspca_dev) +{ + int i; + int retval = -1; + static u8 instruction[][2] = { + {0x06, 0x00}, + {0x7c, 0x00}, + {0x7d, 0x32}, + {0x02, 0x00}, + {0x01, 0x00}, + {0x04, 0x42}, + }; + + for (i = 0; i < ARRAY_SIZE(instruction); i++) { + msleep(60); + retval = jl2005c_write2(gspca_dev, instruction[i]); + if (retval < 0) + return retval; + } + msleep(60); + return retval; +} + + +static int jl2005c_stop(struct gspca_dev *gspca_dev) +{ + int retval; + + retval = jl2005c_write_reg(gspca_dev, 0x07, 0x00); + return retval; +} + +/* This function is called as a workqueue function and runs whenever the camera + * is streaming data. Because it is a workqueue function it is allowed to sleep + * so we can use synchronous USB calls. To avoid possible collisions with other + * threads attempting to use the camera's USB interface the gspca usb_lock is + * used when performing the one USB control operation inside the workqueue, + * which tells the camera to close the stream. In practice the only thing + * which needs to be protected against is the usb_set_interface call that + * gspca makes during stream_off. Otherwise the camera doesn't provide any + * controls that the user could try to change. + */ +static void jl2005c_dostream(struct work_struct *work) +{ + struct sd *dev = container_of(work, struct sd, work_struct); + struct gspca_dev *gspca_dev = &dev->gspca_dev; + int bytes_left = 0; /* bytes remaining in current frame. */ + int data_len; /* size to use for the next read. */ + int header_read = 0; + unsigned char header_sig[2] = {0x4a, 0x4c}; + int act_len; + int packet_type; + int ret; + u8 *buffer; + + buffer = kmalloc(JL2005C_MAX_TRANSFER, GFP_KERNEL | GFP_DMA); + if (!buffer) { + pr_err("Couldn't allocate USB buffer\n"); + goto quit_stream; + } + + while (gspca_dev->present && gspca_dev->streaming) { + /* Check if this is a new frame. If so, start the frame first */ + if (!header_read) { + mutex_lock(&gspca_dev->usb_lock); + ret = jl2005c_start_new_frame(gspca_dev); + mutex_unlock(&gspca_dev->usb_lock); + if (ret < 0) + goto quit_stream; + ret = usb_bulk_msg(gspca_dev->dev, + usb_rcvbulkpipe(gspca_dev->dev, 0x82), + buffer, JL2005C_MAX_TRANSFER, &act_len, + JL2005C_DATA_TIMEOUT); + PDEBUG(D_PACK, + "Got %d bytes out of %d for header", + act_len, JL2005C_MAX_TRANSFER); + if (ret < 0 || act_len < JL2005C_MAX_TRANSFER) + goto quit_stream; + /* Check whether we actually got the first blodk */ + if (memcmp(header_sig, buffer, 2) != 0) { + pr_err("First block is not the first block\n"); + goto quit_stream; + } + /* total size to fetch is byte 7, times blocksize + * of which we already got act_len */ + bytes_left = buffer[0x07] * dev->block_size - act_len; + PDEBUG(D_PACK, "bytes_left = 0x%x", bytes_left); + /* We keep the header. It has other information, too.*/ + packet_type = FIRST_PACKET; + gspca_frame_add(gspca_dev, packet_type, + buffer, act_len); + header_read = 1; + } + while (bytes_left > 0 && gspca_dev->present) { + data_len = bytes_left > JL2005C_MAX_TRANSFER ? + JL2005C_MAX_TRANSFER : bytes_left; + ret = usb_bulk_msg(gspca_dev->dev, + usb_rcvbulkpipe(gspca_dev->dev, 0x82), + buffer, data_len, &act_len, + JL2005C_DATA_TIMEOUT); + if (ret < 0 || act_len < data_len) + goto quit_stream; + PDEBUG(D_PACK, + "Got %d bytes out of %d for frame", + data_len, bytes_left); + bytes_left -= data_len; + if (bytes_left == 0) { + packet_type = LAST_PACKET; + header_read = 0; + } else + packet_type = INTER_PACKET; + gspca_frame_add(gspca_dev, packet_type, + buffer, data_len); + } + } +quit_stream: + if (gspca_dev->present) { + mutex_lock(&gspca_dev->usb_lock); + jl2005c_stop(gspca_dev); + mutex_unlock(&gspca_dev->usb_lock); + } + kfree(buffer); +} + + + + +/* This function is called at probe time */ +static int sd_config(struct gspca_dev *gspca_dev, + const struct usb_device_id *id) +{ + struct cam *cam; + struct sd *sd = (struct sd *) gspca_dev; + + cam = &gspca_dev->cam; + /* We don't use the buffer gspca allocates so make it small. */ + cam->bulk_size = 64; + cam->bulk = 1; + /* For the rest, the camera needs to be detected */ + jl2005c_get_firmware_id(gspca_dev); + /* Here are some known firmware IDs + * First some JL2005B cameras + * {0x41, 0x07, 0x04, 0x2c, 0xe8, 0xf2} Sakar KidzCam + * {0x45, 0x02, 0x08, 0xb9, 0x00, 0xd2} No-name JL2005B + * JL2005C cameras + * {0x01, 0x0c, 0x16, 0x10, 0xf8, 0xc8} Argus DC-1512 + * {0x12, 0x04, 0x03, 0xc0, 0x00, 0xd8} ICarly + * {0x86, 0x08, 0x05, 0x02, 0x00, 0xd4} Jazz + * + * Based upon this scanty evidence, we can detect a CIF camera by + * testing byte 0 for 0x4x. + */ + if ((sd->firmware_id[0] & 0xf0) == 0x40) { + cam->cam_mode = cif_mode; + cam->nmodes = ARRAY_SIZE(cif_mode); + sd->block_size = 0x80; + } else { + cam->cam_mode = vga_mode; + cam->nmodes = ARRAY_SIZE(vga_mode); + sd->block_size = 0x200; + } + + INIT_WORK(&sd->work_struct, jl2005c_dostream); + + return 0; +} + +/* this function is called at probe and resume time */ +static int sd_init(struct gspca_dev *gspca_dev) +{ + return 0; +} + +static int sd_start(struct gspca_dev *gspca_dev) +{ + + struct sd *sd = (struct sd *) gspca_dev; + sd->cap_mode = gspca_dev->cam.cam_mode; + + switch (gspca_dev->width) { + case 640: + PDEBUG(D_STREAM, "Start streaming at vga resolution"); + jl2005c_stream_start_vga_lg(gspca_dev); + break; + case 320: + PDEBUG(D_STREAM, "Start streaming at qvga resolution"); + jl2005c_stream_start_vga_small(gspca_dev); + break; + case 352: + PDEBUG(D_STREAM, "Start streaming at cif resolution"); + jl2005c_stream_start_cif_lg(gspca_dev); + break; + case 176: + PDEBUG(D_STREAM, "Start streaming at qcif resolution"); + jl2005c_stream_start_cif_small(gspca_dev); + break; + default: + pr_err("Unknown resolution specified\n"); + return -1; + } + + /* Start the workqueue function to do the streaming */ + sd->work_thread = create_singlethread_workqueue(MODULE_NAME); + queue_work(sd->work_thread, &sd->work_struct); + + return 0; +} + +/* called on streamoff with alt==0 and on disconnect */ +/* the usb_lock is held at entry - restore on exit */ +static void sd_stop0(struct gspca_dev *gspca_dev) +{ + struct sd *dev = (struct sd *) gspca_dev; + + /* wait for the work queue to terminate */ + mutex_unlock(&gspca_dev->usb_lock); + /* This waits for sq905c_dostream to finish */ + destroy_workqueue(dev->work_thread); + dev->work_thread = NULL; + mutex_lock(&gspca_dev->usb_lock); +} + + + +/* sub-driver description */ +static const struct sd_desc sd_desc = { + .name = MODULE_NAME, + /* .ctrls = none have been detected */ + /* .nctrls = ARRAY_SIZE(sd_ctrls), */ + .config = sd_config, + .init = sd_init, + .start = sd_start, + .stop0 = sd_stop0, +}; + +/* -- module initialisation -- */ +static const __devinitdata struct usb_device_id device_table[] = { + {USB_DEVICE(0x0979, 0x0227)}, + {} +}; +MODULE_DEVICE_TABLE(usb, device_table); + +/* -- device connect -- */ +static int sd_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), + THIS_MODULE); +} + +static struct usb_driver sd_driver = { + .name = MODULE_NAME, + .id_table = device_table, + .probe = sd_probe, + .disconnect = gspca_disconnect, +#ifdef CONFIG_PM + .suspend = gspca_suspend, + .resume = gspca_resume, +#endif +}; + +/* -- module insert / remove -- */ +static int __init sd_mod_init(void) +{ + int ret; + + ret = usb_register(&sd_driver); + if (ret < 0) + return ret; + return 0; +} +static void __exit sd_mod_exit(void) +{ + usb_deregister(&sd_driver); +} + +module_init(sd_mod_init); +module_exit(sd_mod_exit); diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 2965906a02c9..6bfaa767a817 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -401,6 +401,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_SPCA561 v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */ #define V4L2_PIX_FMT_PAC207 v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */ #define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */ +#define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '0') /* compressed RGGB bayer */ #define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */ #define V4L2_PIX_FMT_SQ905C v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */ #define V4L2_PIX_FMT_PJPG v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */ -- cgit 1.4.1 From 15e9ff3fcde7d8f78e4f9004b4a535a48e3c0cdd Mon Sep 17 00:00:00 2001 From: Tomasz Stanislawski <t.stanislaws@samsung.com> Date: Thu, 29 Sep 2011 11:00:20 -0300 Subject: [media] doc: v4l: add binary images for selection API This patch adds images in binary format for the V4L2 selection API. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> --- Documentation/DocBook/media/constraints.png.b64 | 59 +++++++ Documentation/DocBook/media/selection.png.b64 | 206 ++++++++++++++++++++++++ 2 files changed, 265 insertions(+) create mode 100644 Documentation/DocBook/media/constraints.png.b64 create mode 100644 Documentation/DocBook/media/selection.png.b64 (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/constraints.png.b64 b/Documentation/DocBook/media/constraints.png.b64 new file mode 100644 index 000000000000..125b4a94962c --- /dev/null +++ b/Documentation/DocBook/media/constraints.png.b64 @@ -0,0 +1,59 @@ +iVBORw0KGgoAAAANSUhEUgAAAlQAAAFYCAYAAACVsmLPAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A +/wD/oL2nkwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAAd0SU1FB9sLCBIAKVtZsMAAAAxxSURBVHja 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8af4922fe5d1574acfdedf8a9eaafccf1b955c1d Mon Sep 17 00:00:00 2001 From: Tomasz Stanislawski <t.stanislaws@samsung.com> Date: Fri, 19 Aug 2011 07:00:04 -0300 Subject: [media] doc: v4l: add documentation for selection API This patch adds a documentation for VIDIOC_{G/S}_SELECTION ioctl. Moreover, the patch adds the description of modeling of composing, cropping and scaling features in V4L2. Finally, some examples are presented. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> --- Documentation/DocBook/media/v4l/common.xml | 2 + Documentation/DocBook/media/v4l/compat.xml | 9 + Documentation/DocBook/media/v4l/selection-api.xml | 327 +++++++++++++++++++++ Documentation/DocBook/media/v4l/v4l2.xml | 1 + .../DocBook/media/v4l/vidioc-g-selection.xml | 304 +++++++++++++++++++ 5 files changed, 643 insertions(+) create mode 100644 Documentation/DocBook/media/v4l/selection-api.xml create mode 100644 Documentation/DocBook/media/v4l/vidioc-g-selection.xml (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/common.xml b/Documentation/DocBook/media/v4l/common.xml index 9d3919831eba..c79278acfb0e 100644 --- a/Documentation/DocBook/media/v4l/common.xml +++ b/Documentation/DocBook/media/v4l/common.xml @@ -1168,6 +1168,8 @@ dheight = format.fmt.pix.height; </section> </section> + &sub-selection-api; + <section id="streaming-par"> <title>Streaming Parameters diff --git a/Documentation/DocBook/media/v4l/compat.xml b/Documentation/DocBook/media/v4l/compat.xml index 12ba26262d32..c736380b4647 100644 --- a/Documentation/DocBook/media/v4l/compat.xml +++ b/Documentation/DocBook/media/v4l/compat.xml @@ -2376,6 +2376,12 @@ that used it. It was originally scheduled for removal in 2.6.35. V4L2_CTRL_FLAG_VOLATILE was added to signal volatile controls to userspace. + + Add selection API for extended control over cropping and +composing. Does not affect the compatibility of current drivers and +applications. See selection API for +details. +
@@ -2500,6 +2506,9 @@ ioctls. &VIDIOC-CREATE-BUFS; and &VIDIOC-PREPARE-BUF; ioctls. + + Selection API. + diff --git a/Documentation/DocBook/media/v4l/selection-api.xml b/Documentation/DocBook/media/v4l/selection-api.xml new file mode 100644 index 000000000000..46cb47ab8e3b --- /dev/null +++ b/Documentation/DocBook/media/v4l/selection-api.xml @@ -0,0 +1,327 @@ +
+ + Experimental API for cropping, composing and scaling + + + Experimental + + This is an experimental +interface and may change in the future. + + +
+ Introduction + +Some video capture devices can sample a subsection of a picture and +shrink or enlarge it to an image of arbitrary size. Next, the devices can +insert the image into larger one. Some video output devices can crop part of an +input image, scale it up or down and insert it at an arbitrary scan line and +horizontal offset into a video signal. We call these abilities cropping, +scaling and composing. + +On a video capture device the source is a video +signal, and the cropping target determine the area actually sampled. The sink +is an image stored in a memory buffer. The composing area specifies which part +of the buffer is actually written to by the hardware. + +On a video output device the source is an image in a +memory buffer, and the cropping target is a part of an image to be shown on a +display. The sink is the display or the graphics screen. The application may +select the part of display where the image should be displayed. The size and +position of such a window is controlled by the compose target. + +Rectangles for all cropping and composing targets are defined even if the +device does supports neither cropping nor composing. Their size and position +will be fixed in such a case. If the device does not support scaling then the +cropping and composing rectangles have the same size. + +
+ +
+ Selection targets + +
+ Cropping and composing targets + + + + + + Targets used by a cropping, composing and scaling + process + + +
+
+ +
+ + Configuration + +Applications can use the selection +API to select an area in a video signal or a buffer, and to query for +default settings and hardware limits. + +Video hardware can have various cropping, composing and scaling +limitations. It may only scale up or down, support only discrete scaling +factors, or have different scaling abilities in the horizontal and vertical +directions. Also it may not support scaling at all. At the same time the +cropping/composing rectangles may have to be aligned, and both the source and +the sink may have arbitrary upper and lower size limits. Therefore, as usual, +drivers are expected to adjust the requested parameters and return the actual +values selected. An application can control the rounding behaviour using constraint flags . + +
+ + Configuration of video capture + +See figure for examples of the +selection targets available for a video capture device. It is recommended to +configure the cropping targets before to the composing targets. + +The range of coordinates of the top left corner, width and height of +areas that can be sampled is given by the V4L2_SEL_TGT_CROP_BOUNDS + target. It is recommended for the driver developers to put the +top/left corner at position (0,0) . The rectangle's +coordinates are expressed in driver dependant units, although the coordinate +system guarantees that if sizes of the active cropping and the active composing +rectangles are equal then no scaling is performed. + +The top left corner, width and height of the source rectangle, that is +the area actually sampled, is given by the V4L2_SEL_TGT_CROP_ACTIVE + target. It uses the same coordinate system as +V4L2_SEL_TGT_CROP_BOUNDS . The active cropping area must lie +completely inside the capture boundaries. The driver may further adjust the +requested size and/or position according to hardware limitations. + +Each capture device has a default source rectangle, given by the + V4L2_SEL_TGT_CROP_DEFAULT target. This rectangle shall +over what the driver writer considers the complete picture. Drivers shall set +the active crop rectangle to the default when the driver is first loaded, but +not later. + +The composing targets refer to a memory buffer. The limits of composing +coordinates are obtained using V4L2_SEL_TGT_COMPOSE_BOUNDS +. All coordinates are expressed in natural unit for given formats. +Pixels are highly recommended. The rectangle's top/left corner must be located +at position (0,0) . The width and height are equal to the +image size set by VIDIOC_S_FMT . + +The part of a buffer into which the image is inserted by the hardware is +controlled by the V4L2_SEL_TGT_COMPOSE_ACTIVE target. +The rectangle's coordinates are also expressed in the same coordinate system as +the bounds rectangle. The composing rectangle must lie completely inside bounds +rectangle. The driver must adjust the composing rectangle to fit to the +bounding limits. Moreover, the driver can perform other adjustments according +to hardware limitations. The application can control rounding behaviour using + constraint flags . + +For capture devices the default composing rectangle is queried using + V4L2_SEL_TGT_COMPOSE_DEFAULT . It is usually equal to the +bounding rectangle. + +The part of a buffer that is modified by the hardware is given by + V4L2_SEL_TGT_COMPOSE_PADDED . It contains all pixels +defined using V4L2_SEL_TGT_COMPOSE_ACTIVE plus all +padding data modified by hardware during insertion process. All pixels outside +this rectangle must not be changed by the hardware. The +content of pixels that lie inside the padded area but outside active area is +undefined. The application can use the padded and active rectangles to detect +where the rubbish pixels are located and remove them if needed. + +
+ +
+ + Configuration of video output + +For output devices targets and ioctls are used similarly to the video +capture case. The composing rectangle refers to the +insertion of an image into a video signal. The cropping rectangles refer to a +memory buffer. It is recommended to configure the composing targets before to +the cropping targets. + +The cropping targets refer to the memory buffer that contains an image to +be inserted into a video signal or graphical screen. The limits of cropping +coordinates are obtained using V4L2_SEL_TGT_CROP_BOUNDS . +All coordinates are expressed in natural units for a given format. Pixels are +highly recommended. The top/left corner is always point (0,0) +. The width and height is equal to the image size specified using + VIDIOC_S_FMT ioctl. + +The top left corner, width and height of the source rectangle, that is +the area from which image date are processed by the hardware, is given by the + V4L2_SEL_TGT_CROP_ACTIVE . Its coordinates are expressed +in in the same coordinate system as the bounds rectangle. The active cropping +area must lie completely inside the crop boundaries and the driver may further +adjust the requested size and/or position according to hardware +limitations. + +For output devices the default cropping rectangle is queried using + V4L2_SEL_TGT_CROP_DEFAULT . It is usually equal to the +bounding rectangle. + +The part of a video signal or graphics display where the image is +inserted by the hardware is controlled by V4L2_SEL_TGT_COMPOSE_ACTIVE + target. The rectangle's coordinates are expressed in driver +dependant units. The only exception are digital outputs where the units are +pixels. For other types of devices, the coordinate system guarantees that if +sizes of the active cropping and the active composing rectangles are equal then +no scaling is performed. The composing rectangle must lie completely inside +the bounds rectangle. The driver must adjust the area to fit to the bounding +limits. Moreover, the driver can perform other adjustments according to +hardware limitations. + +The device has a default composing rectangle, given by the +V4L2_SEL_TGT_COMPOSE_DEFAULT target. This rectangle shall cover what +the driver writer considers the complete picture. It is recommended for the +driver developers to put the top/left corner at position (0,0) +. Drivers shall set the active composing rectangle to the default +one when the driver is first loaded. + +The devices may introduce additional content to video signal other than +an image from memory buffers. It includes borders around an image. However, +such a padded area is driver-dependent feature not covered by this document. +Driver developers are encouraged to keep padded rectangle equal to active one. +The padded target is accessed by the V4L2_SEL_TGT_COMPOSE_PADDED + identifier. It must contain all pixels from the +V4L2_SEL_TGT_COMPOSE_ACTIVE target. + +
+ +
+ + Scaling control. + +An application can detect if scaling is performed by comparing the width +and the height of rectangles obtained using V4L2_SEL_TGT_CROP_ACTIVE + and V4L2_SEL_TGT_COMPOSE_ACTIVE targets. If +these are not equal then the scaling is applied. The application can compute +the scaling ratios using these values. + +
+ +
+ +
+ + Comparison with old cropping API. + +The selection API was introduced to cope with deficiencies of previous + API , that was designed to control simple capture +devices. Later the cropping API was adopted by video output drivers. The ioctls +are used to select a part of the display were the video signal is inserted. It +should be considered as an API abuse because the described operation is +actually the composing. The selection API makes a clear distinction between +composing and cropping operations by setting the appropriate targets. The V4L2 +API lacks any support for composing to and cropping from an image inside a +memory buffer. The application could configure a capture device to fill only a +part of an image by abusing V4L2 API. Cropping a smaller image from a larger +one is achieved by setting the field +&v4l2-pix-format;::bytesperline . Introducing an image offsets +could be done by modifying field &v4l2-buffer;::m:userptr + before calling VIDIOC_QBUF . Those +operations should be avoided because they are not portable (endianness), and do +not work for macroblock and Bayer formats and mmap buffers. The selection API +deals with configuration of buffer cropping/composing in a clear, intuitive and +portable way. Next, with the selection API the concepts of the padded target +and constraints flags are introduced. Finally, &v4l2-crop; + and &v4l2-cropcap; have no reserved +fields. Therefore there is no way to extend their functionality. The new + &v4l2-selection; provides a lot of place for future +extensions. Driver developers are encouraged to implement only selection API. +The former cropping API would be simulated using the new one. + +
+ +
+ Examples + + Resetting the cropping parameters + + (A video capture device is assumed; change +V4L2_BUF_TYPE_VIDEO_CAPTURE for other devices; change target to + V4L2_SEL_TGT_COMPOSE_* family to configure composing +area) + + + + &v4l2-selection; sel = { + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, + .target = V4L2_SEL_TGT_CROP_DEFAULT, + }; + ret = ioctl(fd, &VIDIOC-G-SELECTION;, &sel); + if (ret) + exit(-1); + sel.target = V4L2_SEL_TGT_CROP_ACTIVE; + ret = ioctl(fd, &VIDIOC-S-SELECTION;, &sel); + if (ret) + exit(-1); + + + + + + Simple downscaling + Setting a composing area on output of size of at most + half of limit placed at a center of a display. + + + &v4l2-selection; sel = { + .type = V4L2_BUF_TYPE_VIDEO_OUTPUT, + .target = V4L2_SEL_TGT_COMPOSE_BOUNDS, + }; + struct v4l2_rect r; + + ret = ioctl(fd, &VIDIOC-G-SELECTION;, &sel); + if (ret) + exit(-1); + /* setting smaller compose rectangle */ + r.width = sel.r.width / 2; + r.height = sel.r.height / 2; + r.left = sel.r.width / 4; + r.top = sel.r.height / 4; + sel.r = r; + sel.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; + sel.flags = V4L2_SEL_FLAG_LE; + ret = ioctl(fd, &VIDIOC-S-SELECTION;, &sel); + if (ret) + exit(-1); + + + + + + Querying for scaling factors + A video output device is assumed; change +V4L2_BUF_TYPE_VIDEO_OUTPUT for other devices + + + &v4l2-selection; compose = { + .type = V4L2_BUF_TYPE_VIDEO_OUTPUT, + .target = V4L2_SEL_TGT_COMPOSE_ACTIVE, + }; + &v4l2-selection; crop = { + .type = V4L2_BUF_TYPE_VIDEO_OUTPUT, + .target = V4L2_SEL_TGT_CROP_ACTIVE, + }; + double hscale, vscale; + + ret = ioctl(fd, &VIDIOC-G-SELECTION;, &compose); + if (ret) + exit(-1); + ret = ioctl(fd, &VIDIOC-G-SELECTION;, &crop); + if (ret) + exit(-1); + + /* computing scaling factors */ + hscale = (double)compose.r.width / crop.r.width; + vscale = (double)compose.r.height / crop.r.height; + + + + +
+ +
diff --git a/Documentation/DocBook/media/v4l/v4l2.xml b/Documentation/DocBook/media/v4l/v4l2.xml index 2ab365c10fb9..e97c512861bb 100644 --- a/Documentation/DocBook/media/v4l/v4l2.xml +++ b/Documentation/DocBook/media/v4l/v4l2.xml @@ -501,6 +501,7 @@ and discussions on the V4L mailing list. &sub-g-output; &sub-g-parm; &sub-g-priority; + &sub-g-selection; &sub-g-sliced-vbi-cap; &sub-g-std; &sub-g-tuner; diff --git a/Documentation/DocBook/media/v4l/vidioc-g-selection.xml b/Documentation/DocBook/media/v4l/vidioc-g-selection.xml new file mode 100644 index 000000000000..a9d36e0c090e --- /dev/null +++ b/Documentation/DocBook/media/v4l/vidioc-g-selection.xml @@ -0,0 +1,304 @@ + + + + ioctl VIDIOC_G_SELECTION, VIDIOC_S_SELECTION + &manvol; + + + + VIDIOC_G_SELECTION + VIDIOC_S_SELECTION + Get or set one of the selection rectangles + + + + + + int ioctl + int fd + int request + struct v4l2_selection *argp + + + + + + Arguments + + + + fd + + &fd; + + + + request + + VIDIOC_G_SELECTION, VIDIOC_S_SELECTION + + + + argp + + + + + + + + + Description + + + Experimental + This is an experimental + interface and may change in the future. + + + The ioctls are used to query and configure selection rectangles. + + To query the cropping (composing) rectangle set +&v4l2-selection;::type to the respective buffer type. Do not +use multiplanar buffers. Use V4L2_BUF_TYPE_VIDEO_CAPTURE + instead of V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE +. Use V4L2_BUF_TYPE_VIDEO_OUTPUT instead of + V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE . The next step is +setting &v4l2-selection;::target to value + V4L2_SEL_TGT_CROP_ACTIVE ( +V4L2_SEL_TGT_COMPOSE_ACTIVE ). Please refer to table or for additional +targets. Fields &v4l2-selection;::flags and + &v4l2-selection;::reserved are ignored and they +must be filled with zeros. The driver fills the rest of the structure or +returns &EINVAL; if incorrect buffer type or target was used. If cropping +(composing) is not supported then the active rectangle is not mutable and it is +always equal to the bounds rectangle. Finally, structure +&v4l2-selection;::r is filled with the current cropping +(composing) coordinates. The coordinates are expressed in driver-dependent +units. The only exception are rectangles for images in raw formats, whose +coordinates are always expressed in pixels. + + To change the cropping (composing) rectangle set +&v4l2-selection;::type to the respective buffer type. Do not +use multiplanar buffers. Use V4L2_BUF_TYPE_VIDEO_CAPTURE + instead of V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE +. Use V4L2_BUF_TYPE_VIDEO_OUTPUT instead of + V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE . The next step is +setting &v4l2-selection;::target to value + V4L2_SEL_TGT_CROP_ACTIVE ( +V4L2_SEL_TGT_COMPOSE_ACTIVE ). Please refer to table or for additional +targets. Set desired active area into the field +&v4l2-selection;::r . Field +&v4l2-selection;::reserved is ignored and must be filled with +zeros. The driver may adjust the rectangle coordinates. An application may +introduce constraints to control rounding behaviour. Set the field + &v4l2-selection;::flags to one of values: + + + +0 - The driver can adjust the rectangle size freely +and shall choose a crop/compose rectangle as close as possible to the requested +one. + + +V4L2_SEL_FLAG_GE - The driver is not allowed to +shrink the rectangle. The original rectangle must lay inside the adjusted +one. + + +V4L2_SEL_FLAG_LE - The driver is not allowed to +enlarge the rectangle. The adjusted rectangle must lay inside the original +one. + + +V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE - The driver +must choose the size exactly the same as in the requested rectangle. + + + +Please refer to . + + + + The driver may have to adjusts the requested dimensions against hardware +limits and other parts as the pipeline, i.e. the bounds given by the +capture/output window or TV display. The closest possible values of horizontal +and vertical offset and sizes are chosen according to following priority: + + + + Satisfy constraints from &v4l2-selection;::flags. + + + Adjust width, height, left, and top to hardware limits and alignments. + + + Keep center of adjusted rectangle as close as possible to the original one. + + + Keep width and height as close as possible to original ones. + + + Keep horizontal and vertical offset as close as possible to original ones. + + + +On success the field &v4l2-selection;::r contains +the adjusted rectangle. When the parameters are unsuitable the application may +modify the cropping (composing) or image parameters and repeat the cycle until +satisfactory parameters have been negotiated. If constraints flags have to be +violated at then ERANGE is returned. The error indicates that there +exist no rectangle that satisfies the constraints. + + + + + + Selection targets. + + &cs-def; + + + V4L2_SEL_TGT_CROP_ACTIVE + 0 + area that is currently cropped by hardware + + + V4L2_SEL_TGT_CROP_DEFAULT + 1 + suggested cropping rectangle that covers the "whole picture" + + + V4L2_SEL_TGT_CROP_BOUNDS + 2 + limits for the cropping rectangle + + + V4L2_SEL_TGT_COMPOSE_ACTIVE + 256 + area to which data are composed by hardware + + + V4L2_SEL_TGT_COMPOSE_DEFAULT + 257 + suggested composing rectangle that covers the "whole picture" + + + V4L2_SEL_TGT_COMPOSE_BOUNDS + 258 + limits for the composing rectangle + + + V4L2_SEL_TGT_COMPOSE_PADDED + 259 + the active area and all padding pixels that are inserted or modified by the hardware + + + +
+ + + + + Selection constraint flags + + &cs-def; + + + V4L2_SEL_FLAG_GE + 0x00000001 + indicate that adjusted rectangle must contain a rectangle from &v4l2-selection;::r + + + V4L2_SEL_FLAG_LE + 0x00000002 + indicate that adjusted rectangle must be inside a rectangle from &v4l2-selection;::r + + + +
+ + +
+
+ Size adjustments with constraint flags. + + + + + + Behaviour of rectangle adjustment for different constraint + flags. + + +
+
+ + + + struct <structname>v4l2_selection</structname> + + &cs-str; + + + __u32 + type + Type of the buffer (from &v4l2-buf-type;) + + + __u32 + target + used to select between cropping and composing rectangles + + + __u32 + flags + control over coordinates adjustments, refer to selection flags + + + &v4l2-rect; + r + selection rectangle + + + __u32 + reserved[9] + Reserved fields for future use + + + +
+ + + + &return-value; + + + EINVAL + + The buffer &v4l2-selection;::type +or &v4l2-selection;::target is not supported, or +the &v4l2-selection;::flags are invalid. + + + + ERANGE + + it is not possible to adjust a rectangle +&v4l2-selection;::r that satisfies all contraints from + &v4l2-selection;::flags . + + + + EBUSY + + it is not possible to apply change of selection rectangle at the moment. +Usually because streaming is in progress. + + + + + + -- cgit 1.4.1 From aa73ab96bebb6fb9e0ee4429f78bfa3ef8c5b6b6 Mon Sep 17 00:00:00 2001 From: Tomasz Stanislawski Date: Fri, 9 Dec 2011 13:45:47 -0300 Subject: [media] doc: v4l: selection: choose pixels as units for selection rectangles Pixels were preferred units for selection rectangles over driver-dependent units for almost all use cases. Therefore the units were fixed to pixels. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/selection-api.xml | 30 +++++++++-------------- 1 file changed, 12 insertions(+), 18 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/selection-api.xml b/Documentation/DocBook/media/v4l/selection-api.xml index 46cb47ab8e3b..2f0bdb4d5551 100644 --- a/Documentation/DocBook/media/v4l/selection-api.xml +++ b/Documentation/DocBook/media/v4l/selection-api.xml @@ -84,9 +84,7 @@ configure the cropping targets before to the composing targets. areas that can be sampled is given by the V4L2_SEL_TGT_CROP_BOUNDS target. It is recommended for the driver developers to put the top/left corner at position (0,0) . The rectangle's -coordinates are expressed in driver dependant units, although the coordinate -system guarantees that if sizes of the active cropping and the active composing -rectangles are equal then no scaling is performed. +coordinates are expressed in pixels. The top left corner, width and height of the source rectangle, that is the area actually sampled, is given by the V4L2_SEL_TGT_CROP_ACTIVE @@ -103,10 +101,10 @@ not later. The composing targets refer to a memory buffer. The limits of composing coordinates are obtained using V4L2_SEL_TGT_COMPOSE_BOUNDS -. All coordinates are expressed in natural unit for given formats. -Pixels are highly recommended. The rectangle's top/left corner must be located -at position (0,0) . The width and height are equal to the -image size set by VIDIOC_S_FMT . +. All coordinates are expressed in pixels. The rectangle's top/left +corner must be located at position (0,0) . The width and +height are equal to the image size set by VIDIOC_S_FMT . + The part of a buffer into which the image is inserted by the hardware is controlled by the V4L2_SEL_TGT_COMPOSE_ACTIVE target. @@ -145,10 +143,9 @@ the cropping targets. The cropping targets refer to the memory buffer that contains an image to be inserted into a video signal or graphical screen. The limits of cropping coordinates are obtained using V4L2_SEL_TGT_CROP_BOUNDS . -All coordinates are expressed in natural units for a given format. Pixels are -highly recommended. The top/left corner is always point (0,0) -. The width and height is equal to the image size specified using - VIDIOC_S_FMT ioctl. +All coordinates are expressed in pixels. The top/left corner is always point + (0,0) . The width and height is equal to the image size +specified using VIDIOC_S_FMT ioctl. The top left corner, width and height of the source rectangle, that is the area from which image date are processed by the hardware, is given by the @@ -163,13 +160,10 @@ limitations. bounding rectangle. The part of a video signal or graphics display where the image is -inserted by the hardware is controlled by V4L2_SEL_TGT_COMPOSE_ACTIVE - target. The rectangle's coordinates are expressed in driver -dependant units. The only exception are digital outputs where the units are -pixels. For other types of devices, the coordinate system guarantees that if -sizes of the active cropping and the active composing rectangles are equal then -no scaling is performed. The composing rectangle must lie completely inside -the bounds rectangle. The driver must adjust the area to fit to the bounding +inserted by the hardware is controlled by +V4L2_SEL_TGT_COMPOSE_ACTIVE target. The rectangle's coordinates +are expressed in pixels. The composing rectangle must lie completely inside the +bounds rectangle. The driver must adjust the area to fit to the bounding limits. Moreover, the driver can perform other adjustments according to hardware limitations. -- cgit 1.4.1 From 05834fcf58fe77b0519a8dc40e3c4a5a28dfc88d Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 22 Nov 2011 08:59:34 -0300 Subject: [media] v4l2 spec: clarify usage of V4L2_FBUF_FLAG_OVERLAY Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml b/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml index 93817f337033..7c63815e7afd 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml @@ -364,15 +364,20 @@ capability and it is cleared otherwise. V4L2_FBUF_FLAG_OVERLAY 0x0002 - The frame buffer is an overlay surface the same -size as the capture. [?] - - - The purpose of -V4L2_FBUF_FLAG_OVERLAY was never quite clear. -Most drivers seem to ignore this flag. For compatibility with the -bttv driver applications should set the -V4L2_FBUF_FLAG_OVERLAY flag. + If this flag is set for a video capture device, then the +driver will set the initial overlay size to cover the full framebuffer size, +otherwise the existing overlay size (as set by &VIDIOC-S-FMT;) will be used. + +Only one video capture driver (bttv) supports this flag. The use of this flag +for capture devices is deprecated. There is no way to detect which drivers +support this flag, so the only reliable method of setting the overlay size is +through &VIDIOC-S-FMT;. + +If this flag is set for a video output device, then the video output overlay +window is relative to the top-left corner of the framebuffer and restricted +to the size of the framebuffer. If it is cleared, then the video output +overlay window is relative to the video output display. + V4L2_FBUF_FLAG_CHROMAKEY -- cgit 1.4.1 From 6055b12ae0f433314cba98f423fb8c5fc211ca8d Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 11 Jan 2012 07:30:55 -0300 Subject: [media] V4L2 Spec: fix extended control documentation Update the spec to the behavior implemented by the control framework. This should have been documented long ago but for some reason it was never done. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- .../DocBook/media/v4l/vidioc-g-ext-ctrls.xml | 18 +++++++++++++----- Documentation/video4linux/v4l2-controls.txt | 21 --------------------- 2 files changed, 13 insertions(+), 26 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml index 6f1f9a629dc3..b17a7aac6997 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml @@ -183,7 +183,12 @@ applications must set the array to zero. __u32 ctrl_class The control class to which all controls belong, see -. +. Drivers that use a kernel framework for handling +controls will also accept a value of 0 here, meaning that the controls can +belong to any control class. Whether drivers support this can be tested by setting +ctrl_class to 0 and calling VIDIOC_TRY_EXT_CTRLS +with a count of 0. If that succeeds, then the driver +supports this feature. __u32 @@ -194,10 +199,13 @@ also be zero. __u32 error_idx - Set by the driver in case of an error. It is the -index of the control causing the error or equal to 'count' when the -error is not associated with a particular control. Undefined when the -ioctl returns 0 (success). + Set by the driver in case of an error. If it is equal +to count, then no actual changes were made to +controls. In other words, the error was not associated with setting a particular +control. If it is another value, then only the controls up to error_idx-1 +were modified and control error_idx is the one that +caused the error. The error_idx value is undefined +if the ioctl returned 0 (success). __u32 diff --git a/Documentation/video4linux/v4l2-controls.txt b/Documentation/video4linux/v4l2-controls.txt index 26aa0573933e..e2492a9d1027 100644 --- a/Documentation/video4linux/v4l2-controls.txt +++ b/Documentation/video4linux/v4l2-controls.txt @@ -666,27 +666,6 @@ a control of this type whenever the first control belonging to a new control class is added. -Differences from the Spec -========================= - -There are a few places where the framework acts slightly differently from the -V4L2 Specification. Those differences are described in this section. We will -have to see whether we need to adjust the spec or not. - -1) It is no longer required to have all controls contained in a -v4l2_ext_control array be from the same control class. The framework will be -able to handle any type of control in the array. You need to set ctrl_class -to 0 in order to enable this. If ctrl_class is non-zero, then it will still -check that all controls belong to that control class. - -If you set ctrl_class to 0 and count to 0, then it will only return an error -if there are no controls at all. - -2) Clarified the way error_idx works. For get and set it will be equal to -count if nothing was done yet. If it is less than count then only the controls -up to error_idx-1 were successfully applied. - - Proposals for Extensions ======================== -- cgit 1.4.1 From dacd4fa37dbafe209a90d6d5b729d2257df4b734 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 11 Jan 2012 07:37:54 -0300 Subject: [media] V4L2 Spec: improve the G/S_INPUT/OUTPUT documentation As Rupert pointed out, the phrase "It is good practice" should be replaced with "You must". Signed-off-by: Hans Verkuil Cc: Rupert Eibauer Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/vidioc-g-input.xml | 4 ++-- Documentation/DocBook/media/v4l/vidioc-g-output.xml | 5 +++-- 2 files changed, 5 insertions(+), 4 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/vidioc-g-input.xml b/Documentation/DocBook/media/v4l/vidioc-g-input.xml index 08ae82f131f2..1d43065090dd 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-input.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-input.xml @@ -61,8 +61,8 @@ desired input in an integer and call the VIDIOC_S_INPUT ioctl with a pointer to this integer. Side effects are possible. For example inputs may support different video standards, so the driver may implicitly switch the -current standard. It is good practice to select an input before -querying or negotiating any other parameters. +current standard. Because of these possible side effects applications +must select an input before querying or negotiating any other parameters. Information about video inputs is available using the &VIDIOC-ENUMINPUT; ioctl. diff --git a/Documentation/DocBook/media/v4l/vidioc-g-output.xml b/Documentation/DocBook/media/v4l/vidioc-g-output.xml index fd45f1c13ccf..4533068ecb8a 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-output.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-output.xml @@ -61,8 +61,9 @@ desired output in an integer and call the VIDIOC_S_OUTPUT ioctl with a pointer to this integer. Side effects are possible. For example outputs may support different video standards, so the driver may implicitly switch the current -standard. It is good practice to select an output before querying or -negotiating any other parameters. +standard. +standard. Because of these possible side effects applications +must select an output before querying or negotiating any other parameters. Information about video outputs is available using the &VIDIOC-ENUMOUTPUT; ioctl. -- cgit 1.4.1 From aa07eec5320cf1793062c03b8409e7541ca37c31 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 11 Oct 2011 05:12:52 -0300 Subject: [media] v4l2-ioctl: make tuner 'type' check more strict for S_FREQUENCY As per the feature removal document, make the tuner type check more strict so that it is no longer possible to set the radio frequency through a video node or the TV frequency through a radio node. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/vidioc-g-frequency.xml | 7 +++++-- Documentation/feature-removal-schedule.txt | 11 ----------- drivers/media/video/v4l2-ioctl.c | 8 +++++++- 3 files changed, 12 insertions(+), 14 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml b/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml index 16431813bebd..66e9a5257861 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml @@ -98,8 +98,11 @@ the &v4l2-output; modulator field and the &v4l2-tuner-type; type The tuner type. This is the same value as in the -&v4l2-tuner; type field. The field is not -applicable to modulators, &ie; ignored by drivers. +&v4l2-tuner; type field. The type must be set +to V4L2_TUNER_RADIO for /dev/radioX +device nodes, and to V4L2_TUNER_ANALOG_TV +for all others. The field is not applicable to modulators, &ie; ignored +by drivers. __u32 diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index c4362ef3a793..fed5a34a727d 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -460,17 +460,6 @@ Who: Jean Delvare ---------------------------- -What: For VIDIOC_S_FREQUENCY the type field must match the device node's type. - If not, return -EINVAL. -When: 3.2 -Why: It makes no sense to switch the tuner to radio mode by calling - VIDIOC_S_FREQUENCY on a video node, or to switch the tuner to tv mode by - calling VIDIOC_S_FREQUENCY on a radio node. This is the first step of a - move to more consistent handling of tv and radio tuners. -Who: Hans Verkuil - ----------------------------- - What: Opening a radio device node will no longer automatically switch the tuner mode from tv to radio. When: 3.3 diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index 77feeb67e2db..3f623859a337 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -1871,6 +1871,7 @@ static long __video_do_ioctl(struct file *file, case VIDIOC_S_FREQUENCY: { struct v4l2_frequency *p = arg; + enum v4l2_tuner_type type; if (!ops->vidioc_s_frequency) break; @@ -1878,9 +1879,14 @@ static long __video_do_ioctl(struct file *file, ret = ret_prio; break; } + type = (vfd->vfl_type == VFL_TYPE_RADIO) ? + V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", p->tuner, p->type, p->frequency); - ret = ops->vidioc_s_frequency(file, fh, p); + if (p->type != type) + ret = -EINVAL; + else + ret = ops->vidioc_s_frequency(file, fh, p); break; } case VIDIOC_G_SLICED_VBI_CAP: -- cgit 1.4.1 From a34e2a784f8d5b4d26fb3cc378e04296cdc7ad23 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 17 Jan 2012 09:45:48 -0200 Subject: [media] DocBook/dvbproperty.xml: Fix the units for DTV_FREQUENCY The units for DTV_FREQUENCY are kHz for satellital delivery systems (DVB-S/DVB-S2/DVB-TURBO/ISDB-S). Fix it at the API spec. Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/dvb/dvbproperty.xml | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml index ffee1fbbc001..049664192bb7 100644 --- a/Documentation/DocBook/media/dvb/dvbproperty.xml +++ b/Documentation/DocBook/media/dvb/dvbproperty.xml @@ -163,14 +163,16 @@ get/set up to 64 properties. The actual meaning of each property is described on
<constant>DTV_FREQUENCY</constant> - Central frequency of the channel, in HZ. + Central frequency of the channel. Notes: - 1)For ISDB-T, the channels are usually transmitted with an offset of 143kHz. + 1)For satellital delivery systems, it is measured in kHz. + For the other ones, it is measured in Hz. + 2)For ISDB-T, the channels are usually transmitted with an offset of 143kHz. E.g. a valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of the channel which is 6MHz. - 2)As in ISDB-Tsb the channel consists of only one or three segments the + 3)As in ISDB-Tsb the channel consists of only one or three segments the frequency step is 429kHz, 3*429 respectively. As for ISDB-T the central frequency of the channel is expected.
-- cgit 1.4.1 From b5dad9fdd8e2c102e1a0f8490c55dbda198d412c Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 17 Jan 2012 09:49:28 -0200 Subject: [media] DocBook/dvbproperty.xml: Fix ISDB-T delivery system parameters The ISDB-T differs on its way to implement the hierarchical transmissions: instead of using a low-priority/high-priority FEC codes, it does that by using different layers, each layer with their groups of segments. So, those parameters don't make sense for ISDB-T. Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/dvb/dvbproperty.xml | 3 --- 1 file changed, 3 deletions(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml index 049664192bb7..2de2bb326906 100644 --- a/Documentation/DocBook/media/dvb/dvbproperty.xml +++ b/Documentation/DocBook/media/dvb/dvbproperty.xml @@ -740,11 +740,8 @@ typedef enum fe_hierarchy { DTV_MODULATION DTV_BANDWIDTH_HZ DTV_INVERSION - DTV_CODE_RATE_HP - DTV_CODE_RATE_LP DTV_GUARD_INTERVAL DTV_TRANSMISSION_MODE - DTV_HIERARCHY DTV_ISDBT_LAYER_ENABLED DTV_ISDBT_PARTIAL_RECEPTION DTV_ISDBT_SOUND_BROADCASTING -- cgit 1.4.1 From 7bb0f088f8dd1d60b8f5743471cc3db3f820df59 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 17 Jan 2012 10:00:41 -0200 Subject: [media] DocBook/dvbproperty.xml: Remove DTV_MODULATION from ISDB-T On ISDB-T, each layer can have its own independent modulation, applied to the carriers that belong to the segments associated with them. So, there's no sense to define a global modulation parameter. Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/dvb/dvbproperty.xml | 1 - 1 file changed, 1 deletion(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml index 2de2bb326906..c7a4ca517859 100644 --- a/Documentation/DocBook/media/dvb/dvbproperty.xml +++ b/Documentation/DocBook/media/dvb/dvbproperty.xml @@ -737,7 +737,6 @@ typedef enum fe_hierarchy { DTV_TUNE DTV_CLEAR DTV_FREQUENCY - DTV_MODULATION DTV_BANDWIDTH_HZ DTV_INVERSION DTV_GUARD_INTERVAL -- cgit 1.4.1 From 73e4a987390aacce102d7d36095a2dd63665f032 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 21 Jan 2012 11:03:16 -0800 Subject: docbook: don't use serial_core.h in device-drivers book Fix new kernel-doc warning. This file no longer contains kernel-doc comments. Warning(include/linux/serial_core.h): no structured comments found Signed-off-by: Randy Dunlap Cc: Greg Kroah-Hartman Signed-off-by: Linus Torvalds --- Documentation/DocBook/device-drivers.tmpl | 1 - 1 file changed, 1 deletion(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl index b638e50cf8f6..b330b327032a 100644 --- a/Documentation/DocBook/device-drivers.tmpl +++ b/Documentation/DocBook/device-drivers.tmpl @@ -216,7 +216,6 @@ X!Isound/sound_firmware.c 16x50 UART Driver -!Iinclude/linux/serial_core.h !Edrivers/tty/serial/serial_core.c !Edrivers/tty/serial/8250.c -- cgit 1.4.1 From 4e35d28751752859b9985074e02320393b6f1c33 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 21 Jan 2012 11:03:20 -0800 Subject: docbook: change iomap source filename in deviceiobook Fix warning since kernel-doc comments were moved to another source file. Warning(lib/iomap.c): no structured comments found Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- Documentation/DocBook/deviceiobook.tmpl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/deviceiobook.tmpl b/Documentation/DocBook/deviceiobook.tmpl index c1ed6a49e598..54199a0dcf9a 100644 --- a/Documentation/DocBook/deviceiobook.tmpl +++ b/Documentation/DocBook/deviceiobook.tmpl @@ -317,7 +317,7 @@ CPU B: spin_unlock_irqrestore(&dev_lock, flags) Public Functions Provided !Iarch/x86/include/asm/io.h -!Elib/iomap.c +!Elib/pci_iomap.c -- cgit 1.4.1 From b4d20859362fde976bb2fa53eb51b798cdba1afc Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 21 Jan 2012 11:03:24 -0800 Subject: docbook: fix sched source file names in device-drivers book Fix warning since kernel scheduler functions and kernel-doc notation were moved to other files. docproc: lnx-33-rc1/kernel/sched.c: No such file or directory Signed-off-by: Randy Dunlap Cc: Ingo Molnar Cc: Peter Zijlstra Signed-off-by: Linus Torvalds --- Documentation/DocBook/device-drivers.tmpl | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation/DocBook') diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl index b330b327032a..2f7fd4360848 100644 --- a/Documentation/DocBook/device-drivers.tmpl +++ b/Documentation/DocBook/device-drivers.tmpl @@ -50,7 +50,9 @@ Delaying, scheduling, and timer routines !Iinclude/linux/sched.h -!Ekernel/sched.c +!Ekernel/sched/core.c +!Ikernel/sched/cpupri.c +!Ikernel/sched/fair.c !Iinclude/linux/completion.h !Ekernel/timer.c -- cgit 1.4.1