Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb

e695e10b · Linus Torvalds <[email protected]> · 2007-02-21 11:10:30 -08:00

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (196 commits)
  V4L/DVB (5253): Qt1010: whitespace / 80 column cleanups
  V4L/DVB (5252): Qt1010: use ARRAY_SIZE macro when appropriate
  V4L/DVB (5251): Qt1010: fix compiler warning
  V4L/DVB (5249): Fix compiler warning in vivi.c
  V4L/DVB (5247): Stv0297: Enable BER/UNC counting
  V4L/DVB (5246): Budget-ci: IR handling fixups
  V4L/DVB (5245): Dvb-ttpci: use i2c gate ctrl from stv0297 frontend driver
  V4L/DVB (5244): Dvbdev: fix illegal re-usage of fileoperations struct
  V4L/DVB (5178): Avoid race when deregistering the IR control for dvb-usb
  V4L/DVB (5240): Qt1010: use i2c_gate_ctrl where appropriate
  V4L/DVB (5239): Whitespace / 80-column cleanups
  V4L/DVB (5238): Kconfig: qt1010 should be selected by gl861 and au6610
  V4L/DVB (5237): Dvb: add new qt1010 tuner module
  V4L/DVB (5236): Initial support for Sigmatek DVB-110 DVB-T
  V4L/DVB (5235): Gl861: use parallel_ts
  V4L/DVB (5234): Gl861: remove unneeded declaration
  V4L/DVB (5233): Gl861: correct address of the bulk endpoint
  V4L/DVB (5232): Gl861: correct oops when loading module
  V4L/DVB (5231): Gl861: whitespace cleanups
  V4L/DVB (5230): Gl861: remove NULL entry from gl861_properties
  ...

Commit: e695e10bc996d6f83df7d85f1011c8d00573f68b
Parents: 3a5f10e3 · f6982d59

Merge commit. Changes below are compared with the first parent: 3a5f10e3.

Changes

170 files changed · +9913 −4401

File	Status	Add	Del	Content
Documentation/video4linux/CARDLIST.bttv	modified	+1	−1	View file
Documentation/video4linux/CARDLIST.saa7134	modified	+3	−0	View file
Documentation/video4linux/CQcam.txt	modified	+3	−3	View file
Documentation/video4linux/Zoran	modified	+2	−2	View file
Documentation/video4linux/cx2341x/fw-decoder-api.txt	modified	+18	−40	View file
Documentation/video4linux/cx2341x/fw-decoder-regs.txt	added	+815	−0	View file
Documentation/video4linux/cx2341x/fw-dma.txt	modified	+9	−7	View file
Documentation/video4linux/cx2341x/fw-encoder-api.txt	modified	+32	−20	View file
Documentation/video4linux/cx2341x/fw-memory.txt	modified	+4	−6	View file
Documentation/video4linux/et61x251.txt	modified	+4	−3	View file
Documentation/video4linux/sn9c102.txt	modified	+152	−94	View file
Documentation/video4linux/zc0301.txt	modified	+5	−5	View file
MAINTAINERS	modified	+1	−1	View file
drivers/media/Kconfig	modified	+1	−0	View file
drivers/media/common/Kconfig	modified	+0	−4	View file
drivers/media/common/ir-functions.c	modified	+110	−0	View file
drivers/media/common/ir-keymaps.c	modified	+171	−0	View file
drivers/media/common/saa7146_fops.c	modified	+1	−1	View file
drivers/media/dvb/b2c2/flexcop-fe-tuner.c	modified	+35	−55	View file
drivers/media/dvb/bt8xx/bt878.c	modified	+1	−0	View file
drivers/media/dvb/bt8xx/dst.c	modified	+1	−1	View file
drivers/media/dvb/bt8xx/dvb-bt8xx.c	modified	+2	−1	View file
drivers/media/dvb/cinergyT2/cinergyT2.c	modified	+5	−0	View file
drivers/media/dvb/dvb-core/dvb_frontend.c	modified	+25	−46	View file
drivers/media/dvb/dvb-core/dvbdev.c	modified	+15	−2	View file
drivers/media/dvb/dvb-usb/Kconfig	modified	+28	−0	View file
drivers/media/dvb/dvb-usb/Makefile	modified	+9	−0	View file
drivers/media/dvb/dvb-usb/au6610.c	added	+255	−0	View file
drivers/media/dvb/dvb-usb/au6610.h	added	+19	−0	View file
drivers/media/dvb/dvb-usb/dvb-usb-ids.h	modified	+5	−0	View file
drivers/media/dvb/dvb-usb/dvb-usb-remote.c	modified	+1	−1	View file
drivers/media/dvb/dvb-usb/gl861.c	added	+231	−0	View file
drivers/media/dvb/dvb-usb/gl861.h	added	+15	−0	View file
drivers/media/dvb/dvb-usb/m920x.c	added	+541	−0	View file
drivers/media/dvb/dvb-usb/m920x.h	added	+35	−0	View file
drivers/media/dvb/frontends/Kconfig	modified	+7	−0	View file
drivers/media/dvb/frontends/Makefile	modified	+1	−0	View file
drivers/media/dvb/frontends/cx24110.c	modified	+2	−2	View file
drivers/media/dvb/frontends/cx24123.c	modified	+3	−3	View file
drivers/media/dvb/frontends/dib3000mc.c	modified	+1	−1	View file
drivers/media/dvb/frontends/qt1010.c	added	+485	−0	View file
drivers/media/dvb/frontends/qt1010.h	added	+53	−0	View file
drivers/media/dvb/frontends/qt1010_priv.h	added	+105	−0	View file
drivers/media/dvb/frontends/stv0297.c	modified	+15	−4	View file
drivers/media/dvb/frontends/stv0299.c	modified	+1	−1	View file
drivers/media/dvb/frontends/tda10021.c	modified	+1	−1	View file
drivers/media/dvb/frontends/tda1004x.c	modified	+1	−1	View file
drivers/media/dvb/frontends/zl10353.c	modified	+97	−6	View file
drivers/media/dvb/frontends/zl10353.h	modified	+3	−0	View file
drivers/media/dvb/frontends/zl10353_priv.h	modified	+24	−12	View file
drivers/media/dvb/ttpci/av7110.c	modified	+27	−30	View file
drivers/media/dvb/ttpci/av7110.h	modified	+0	−2	View file
drivers/media/dvb/ttpci/av7110_av.c	modified	+21	−21	View file
drivers/media/dvb/ttpci/av7110_ca.c	modified	+10	−12	View file
drivers/media/dvb/ttpci/av7110_ir.c	modified	+17	−1	View file
drivers/media/dvb/ttpci/av7110_v4l.c	modified	+10	−20	View file
drivers/media/dvb/ttpci/budget-av.c	modified	+3	−0	View file
drivers/media/dvb/ttpci/budget-ci.c	modified	+44	−11	View file
drivers/media/dvb/ttusb-dec/ttusb_dec.c	modified	+2	−2	View file
drivers/media/radio/radio-aztech.c	modified	+160	−118	View file
drivers/media/radio/radio-gemtek-pci.c	modified	+5	−13	View file
drivers/media/radio/radio-maxiradio.c	modified	+217	−137	View file
drivers/media/video/Kconfig	modified	+1	−1	View file
drivers/media/video/Makefile	modified	+0	−1	View file
drivers/media/video/bt8xx/bttv-cards.c	modified	+1	−22	View file
drivers/media/video/bt8xx/bttv-driver.c	modified	+765	−128	View file
drivers/media/video/bt8xx/bttv-input.c	modified	+25	−132	View file
drivers/media/video/bt8xx/bttv-risc.c	modified	+140	−31	View file
drivers/media/video/bt8xx/bttv-vbi.c	modified	+299	−69	View file
drivers/media/video/bt8xx/bttv.h	modified	+0	−27	View file
drivers/media/video/bt8xx/bttvp.h	modified	+77	−13	View file
drivers/media/video/cafe_ccic.c	modified	+1	−1	View file
drivers/media/video/cpia.c	modified	+5	−6	View file
drivers/media/video/cx2341x.c	modified	+2	−15	View file
drivers/media/video/cx25840/cx25840-core.c	modified	+9	−13	View file
drivers/media/video/cx88/Makefile	modified	+0	−5	View file
drivers/media/video/cx88/cx88-blackbird.c	modified	+368	−199	View file
drivers/media/video/cx88/cx88-cards.c	modified	+6	−0	View file
drivers/media/video/cx88/cx88-core.c	modified	+68	−34	View file
drivers/media/video/cx88/cx88-dvb.c	modified	+5	−5	View file
drivers/media/video/cx88/cx88-i2c.c	modified	+2	−0	View file
drivers/media/video/cx88/cx88-tvaudio.c	modified	+0	−49	View file
drivers/media/video/cx88/cx88-vbi.c	modified	+7	−4	View file
drivers/media/video/cx88/cx88-video.c	modified	+515	−651	View file
drivers/media/video/cx88/cx88.h	modified	+29	−25	View file
drivers/media/video/et61x251/et61x251.h	modified	+1	−4	View file
drivers/media/video/et61x251/et61x251_core.c	modified	+84	−45	View file
drivers/media/video/et61x251/et61x251_sensor.h	modified	+2	−2	View file
drivers/media/video/et61x251/et61x251_tas5130d1b.c	modified	+1	−1	View file
drivers/media/video/pvrusb2/pvrusb2-audio.c	modified	+5	−41	View file
drivers/media/video/pvrusb2/pvrusb2-context.c	modified	+1	−2	View file
drivers/media/video/pvrusb2/pvrusb2-ctrl.c	modified	+27	−18	View file
drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c	modified	+5	−22	View file
drivers/media/video/pvrusb2/pvrusb2-debugifc.c	modified	+2	−2	View file
drivers/media/video/pvrusb2/pvrusb2-eeprom.c	modified	+2	−3	View file
drivers/media/video/pvrusb2/pvrusb2-encoder.c	modified	+191	−78	View file
drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h	added	+62	−0	View file
drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h	modified	+19	−17	View file
drivers/media/video/pvrusb2/pvrusb2-hdw.c	modified	+327	−174	View file
drivers/media/video/pvrusb2/pvrusb2-hdw.h	modified	+22	−17	View file
drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c	modified	+10	−6	View file
drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c	modified	+58	−11	View file
drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.h	modified	+3	−0	View file
drivers/media/video/pvrusb2/pvrusb2-i2c-core.c	modified	+34	−7	View file
drivers/media/video/pvrusb2/pvrusb2-i2c-core.h	modified	+3	−0	View file
drivers/media/video/pvrusb2/pvrusb2-io.c	modified	+1	−2	View file
drivers/media/video/pvrusb2/pvrusb2-ioread.c	modified	+1	−2	View file
drivers/media/video/pvrusb2/pvrusb2-std.c	modified	+10	−18	View file
drivers/media/video/pvrusb2/pvrusb2-sysfs.c	modified	+40	−12	View file
drivers/media/video/pvrusb2/pvrusb2-tuner.c	modified	+1	−2	View file
drivers/media/video/pvrusb2/pvrusb2-v4l2.c	modified	+234	−101	View file
drivers/media/video/pvrusb2/pvrusb2-video-v4l.c	modified	+7	−22	View file
drivers/media/video/pvrusb2/pvrusb2-wm8775.c	modified	+15	−13	View file
drivers/media/video/pwc/Makefile	modified	+0	−8	View file
drivers/media/video/pwc/pwc-if.c	modified	+4	−4	View file
drivers/media/video/pwc/pwc-v4l.c	modified	+1	−1	View file
drivers/media/video/pwc/pwc.h	modified	+2	−7	View file
drivers/media/video/saa5246a.c	modified	+5	−5	View file
drivers/media/video/saa5246a.h	modified	+2	−7	View file
drivers/media/video/saa5249.c	modified	+18	−23	View file
drivers/media/video/saa7115.c	modified	+33	−24	View file
drivers/media/video/saa7127.c	modified	+6	−12	View file
drivers/media/video/saa7134/Makefile	modified	+0	−4	View file
drivers/media/video/saa7134/saa7134-cards.c	modified	+140	−0	View file
drivers/media/video/saa7134/saa7134-dvb.c	modified	+12	−0	View file
drivers/media/video/saa7134/saa7134-i2c.c	modified	+12	−12	View file
drivers/media/video/saa7134/saa7134-input.c	modified	+87	−6	View file
drivers/media/video/saa7134/saa7134.h	modified	+9	−21	View file
drivers/media/video/sn9c102/Kconfig	modified	+2	−2	View file
drivers/media/video/sn9c102/Makefile	modified	+1	−1	View file
drivers/media/video/sn9c102/sn9c102.h	modified	+21	−36	View file
drivers/media/video/sn9c102/sn9c102_config.h	added	+86	−0	View file
drivers/media/video/sn9c102/sn9c102_core.c	modified	+559	−160	View file
drivers/media/video/sn9c102/sn9c102_devtable.h	added	+142	−0	View file
drivers/media/video/sn9c102/sn9c102_hv7131d.c	modified	+4	−3	View file
drivers/media/video/sn9c102/sn9c102_mi0343.c	modified	+4	−3	View file
drivers/media/video/sn9c102/sn9c102_ov7630.c	modified	+197	−139	View file
drivers/media/video/sn9c102/sn9c102_ov7660.c	added	+592	−0	View file
drivers/media/video/sn9c102/sn9c102_pas106b.c	modified	+4	−3	View file
drivers/media/video/sn9c102/sn9c102_pas202bca.c	deleted	+0	−238	View before deletion
drivers/media/video/sn9c102/sn9c102_pas202bcb.c	modified	+81	−16	View file
drivers/media/video/sn9c102/sn9c102_sensor.h	modified	+39	−129	View file
drivers/media/video/sn9c102/sn9c102_tas5110c1b.c	modified	+5	−3	View file
drivers/media/video/sn9c102/sn9c102_tas5130d1b.c	modified	+5	−3	View file
drivers/media/video/tvmixer.c	modified	+1	−2	View file
drivers/media/video/tvp5150.c	modified	+6	−12	View file
drivers/media/video/upd64031a.c	modified	+6	−14	View file
drivers/media/video/upd64083.c	modified	+6	−14	View file
drivers/media/video/usbvision/Kconfig	modified	+1	−1	View file
drivers/media/video/usbvision/usbvision-core.c	modified	+53	−17	View file
drivers/media/video/usbvision/usbvision-video.c	modified	+104	−68	View file
drivers/media/video/usbvision/usbvision.h	modified	+8	−3	View file
drivers/media/video/v4l1-compat.c	modified	+1	−1	View file
drivers/media/video/v4l2-common.c	modified	+4	−587	View file
drivers/media/video/video-buf.c	modified	+3	−0	View file
drivers/media/video/videodev.c	modified	+20	−0	View file
drivers/media/video/vivi.c	modified	+85	−17	View file
drivers/media/video/zc0301/zc0301.h	modified	+2	−2	View file
drivers/media/video/zc0301/zc0301_core.c	modified	+47	−8	View file
drivers/media/video/zc0301/zc0301_pas202bcb.c	modified	+2	−2	View file
drivers/media/video/zc0301/zc0301_pb0330.c	modified	+2	−2	View file
drivers/media/video/zc0301/zc0301_sensor.h	modified	+6	−6	View file
include/linux/videodev2.h	modified	+57	−14	View file
include/media/cx2341x.h	modified	+0	−4	View file
include/media/ir-common.h	modified	+46	−0	View file
include/media/saa7115.h	modified	+3	−0	View file
include/media/v4l2-common.h	modified	+1	−13	View file
include/media/v4l2-dev.h	modified	+9	−0	View file
include/media/video-buf.h	modified	+3	−0	View file
sound/pci/bt87x.c	modified	+1	−0	View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/video4linux/CARDLIST.bttv

View file

diff --git a/Documentation/video4linux/CARDLIST.bttv b/Documentation/video4linux/CARDLIST.bttv
index 4efa464..fc2fe9b 100644
--- a/Documentation/video4linux/CARDLIST.bttv
+++ b/Documentation/video4linux/CARDLIST.bttv
@@ -126,7 +126,7 @@
 125 -> MATRIX Vision Sigma-SQ
 126 -> MATRIX Vision Sigma-SLC
 127 -> APAC Viewcomp 878(AMAX)
-128 -> DViCO FusionHDTV DVB-T Lite                         [18ac:db10]
+128 -> DViCO FusionHDTV DVB-T Lite                         [18ac:db10,18ac:db11]
 129 -> V-Gear MyVCD
 130 -> Super TV Tuner
 131 -> Tibet Systems 'Progress DVR' CS16

Documentation/video4linux/CARDLIST.saa7134

View file

diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134
index f6201cc..a12246a 100644
--- a/Documentation/video4linux/CARDLIST.saa7134
+++ b/Documentation/video4linux/CARDLIST.saa7134
@@ -104,3 +104,6 @@
 103 -> Compro Videomate DVB-T200A
 104 -> Hauppauge WinTV-HVR1110 DVB-T/Hybrid     [0070:6701]
 105 -> Terratec Cinergy HT PCMCIA               [153b:1172]
+106 -> Encore ENLTV                             [1131:2342,1131:2341,3016:2344]
+107 -> Encore ENLTV-FM                          [1131:230f]
+108 -> Terratec Cinergy HT PCI                  [153b:1175]

Documentation/video4linux/CQcam.txt

View file

diff --git a/Documentation/video4linux/CQcam.txt b/Documentation/video4linux/CQcam.txt
index ade8651..04986ef 100644
--- a/Documentation/video4linux/CQcam.txt
+++ b/Documentation/video4linux/CQcam.txt
@@ -197,10 +197,10 @@ Use the ../../Maintainers file, particularly the  VIDEO FOR LINUX and PARALLEL
 PORT SUPPORT sections
 
 The video4linux page:
-  http://roadrunner.swansea.linux.org.uk/v4l.shtml
+  http://linuxtv.org
 
-The video4linux2 page:
-  http://millennium.diads.com/bdirks/v4l2.htm
+The V4L2 API spec:
+  http://v4l2spec.bytesex.org/
 
 Some web pages about the quickcams:
    http://www.dkfz-heidelberg.de/Macromol/wedemann/mini-HOWTO-cqcam.html

Documentation/video4linux/Zoran

View file

diff --git a/Documentation/video4linux/Zoran b/Documentation/video4linux/Zoran
index deb218f..85c575a 100644
--- a/Documentation/video4linux/Zoran
+++ b/Documentation/video4linux/Zoran
@@ -339,9 +339,9 @@ Information - video4linux/mjpeg extensions:
 (also see below)
 
 Information - video4linux2:
-http://www.thedirks.org/v4l2/
+http://linuxtv.org
+http://v4l2spec.bytesex.org/
 /usr/include/linux/videodev2.h
-http://www.bytesex.org/v4l/
 
 More information on the video4linux/mjpeg extensions, by Serguei
 Miridonovi and Rainer Johanni:

Documentation/video4linux/cx2341x/fw-decoder-api.txt

View file

diff --git a/Documentation/video4linux/cx2341x/fw-decoder-api.txt b/Documentation/video4linux/cx2341x/fw-decoder-api.txt
index 78bf5f2..8c317b7 100644
--- a/Documentation/video4linux/cx2341x/fw-decoder-api.txt
+++ b/Documentation/video4linux/cx2341x/fw-decoder-api.txt
@@ -21,7 +21,7 @@ Param[0]
 	0 based frame number in GOP to begin playback from.
 Param[1]
 	Specifies the number of muted audio frames to play before normal
-	audio resumes.
+	audio resumes. (This is not implemented in the firmware, leave at 0)
 
 -------------------------------------------------------------------------------
 
@@ -32,6 +32,10 @@ Description
 	playback stops at specified PTS.
 Param[0]
 	Display 0=last frame, 1=black
+	Note: this takes effect immediately, so if you want to wait for a PTS,
+	then use '0', otherwise the screen goes to black at once.
+	You can call this later (even if there is no playback) with a 1 value
+	to set the screen to black.
 Param[1]
 	PTS low
 Param[2]
@@ -60,8 +64,12 @@ Param[0]
 	    31   Speed:
 		     '0' slow
 		     '1' fast
+	Note: n is limited to 2. Anything higher does not result in
+	faster playback. Instead the host should start dropping frames.
 Param[1]
 	Direction: 0=forward, 1=reverse
+	Note: to make reverse playback work you have to write full GOPs in
+	reverse order.
 Param[2]
 	Picture mask:
 	    1=I frames
@@ -69,13 +77,16 @@ Param[2]
 	    7=I, P, B frames
 Param[3]
 	B frames per GOP (for reverse play only)
+	Note: for reverse playback the Picture Mask should be set to I or I, P.
+	Adding B frames to the mask will result in corrupt video. This field
+	has to be set to the correct value in order to keep the timing correct.
 Param[4]
 	Mute audio: 0=disable, 1=enable
 Param[5]
 	Display 0=frame, 1=field
 Param[6]
 	Specifies the number of muted audio frames to play before normal audio
-	resumes.
+	resumes. (Not implemented in the firmware, leave at 0)
 
 -------------------------------------------------------------------------------
 
@@ -212,6 +223,7 @@ Description
 	Select audio mode
 Param[0]
 	Dual mono mode action
+	    0=Stereo, 1=Left, 2=Right, 3=Mono, 4=Swap, -1=Unchanged
 Param[1]
 	Stereo mode action:
 	    0=Stereo, 1=Left, 2=Right, 3=Mono, 4=Swap, -1=Unchanged
@@ -224,7 +236,10 @@ Description
 	Setup firmware to notify the host about a particular event.
 	Counterpart to API 0xD5
 Param[0]
-	Event: 0=Audio mode change between stereo and dual channel
+	Event: 0=Audio mode change between mono, (joint) stereo and dual channel.
+	Event: 3=Decoder started
+	Event: 4=Unknown: goes off 10-15 times per second while decoding.
+	Event: 5=Some sync event: goes off once per frame.
 Param[1]
 	Notification 0=disabled, 1=enabled
 Param[2]
@@ -273,43 +288,6 @@ Param[3]
 
 -------------------------------------------------------------------------------
 
-Name 	CX2341X_DEC_SET_AUDIO_OUTPUT
-Enum 	27/0x1B
-Description
-	Select audio output format
-Param[0]
-	Bitmask:
-	     0:1  Data size:
-		      '00' 16 bit
-		      '01' 20 bit
-		      '10' 24 bit
-	     2:7  Unused
-	     8:9  Mode:
-		      '00' 2 channels
-		      '01' 4 channels
-		      '10' 6 channels
-		      '11' 6 channels with one line data mode
-			   (for left justified MSB first mode, 20 bit only)
-	    10:11 Unused
-	    12:13 Channel format:
-		      '00' right justified MSB first mode
-		      '01' left justified MSB first mode
-		      '10' I2S mode
-	    14:15 Unused
-	    16:21 Right justify bit count
-	    22:31 Unused
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_DEC_SET_AV_DELAY
-Enum 	28/0x1C
-Description
-	Set audio/video delay in 90Khz ticks
-Param[0]
-	0=A/V in sync, negative=audio lags, positive=video lags
-
--------------------------------------------------------------------------------
-
 Name 	CX2341X_DEC_SET_PREBUFFERING
 Enum 	30/0x1E
 Description

Documentation/video4linux/cx2341x/fw-decoder-regs.txt

View file

diff --git a/Documentation/video4linux/cx2341x/fw-decoder-regs.txt b/Documentation/video4linux/cx2341x/fw-decoder-regs.txt
new file mode 100644
index 0000000..db2366c
--- /dev/null
+++ b/Documentation/video4linux/cx2341x/fw-decoder-regs.txt
@@ -0,0 +1,815 @@
+PVR350 Video decoder registers 0x02002800 -> 0x02002B00
+=======================================================
+
+This list has been worked out through trial and error. There will be mistakes
+and omissions. Some registers have no obvious effect so it's hard to say what
+they do, while others interact with each other, or require a certain load
+sequence. Horizontal filter setup is one example, with six registers working
+in unison and requiring a certain load sequence to correctly configure. The
+indexed colour palette is much easier to set at just two registers, but again
+it requires a certain load sequence.
+
+Some registers are fussy about what they are set to. Load in a bad value & the
+decoder will fail. A firmware reload will often recover, but sometimes a reset
+is required. For registers containing size information, setting them to 0 is
+generally a bad idea. For other control registers i.e. 2878, you'll only find
+out what values are bad when it hangs.
+
+--------------------------------------------------------------------------------
+2800
+      bit 0
+	Decoder enable
+	  0 = disable
+	  1 = enable
+--------------------------------------------------------------------------------
+2804
+      bits 0:31
+	Decoder horizontal Y alias register 1
+---------------
+2808
+      bits 0:31
+	Decoder horizontal Y alias register 2
+---------------
+280C
+      bits 0:31
+	Decoder horizontal Y alias register 3
+---------------
+2810
+      bits 0:31
+	Decoder horizontal Y alias register 4
+---------------
+2814
+      bits 0:31
+	Decoder horizontal Y alias register 5
+---------------
+2818
+      bits 0:31
+	Decoder horizontal Y alias trigger
+
+     These six registers control the horizontal aliasing filter for the Y plane.
+     The first five registers must all be loaded before accessing the trigger
+     (2818), as this register actually clocks the data through for the first
+     five.
+
+     To correctly program set the filter, this whole procedure must be done 16
+     times. The actual register contents are copied from a lookup-table in the
+     firmware which contains 4 different filter settings.
+
+--------------------------------------------------------------------------------
+281C
+      bits 0:31
+	Decoder horizontal UV alias register 1
+---------------
+2820
+      bits 0:31
+	Decoder horizontal UV alias register 2
+---------------
+2824
+      bits 0:31
+	Decoder horizontal UV alias register 3
+---------------
+2828
+      bits 0:31
+	Decoder horizontal UV alias register 4
+---------------
+282C
+      bits 0:31
+	Decoder horizontal UV alias register 5
+---------------
+2830
+      bits 0:31
+	Decoder horizontal UV alias trigger
+
+     These six registers control the horizontal aliasing for the UV plane.
+     Operation is the same as the Y filter, with 2830 being the trigger
+     register.
+
+--------------------------------------------------------------------------------
+2834
+      bits 0:15
+	Decoder Y source width in pixels
+
+      bits 16:31
+	Decoder Y destination width in pixels
+---------------
+2838
+      bits 0:15
+	Decoder UV source width in pixels
+
+      bits 16:31
+	Decoder UV destination width in pixels
+
+     NOTE: For both registers, the resulting image must be fully visible on
+     screen. If the image exceeds the right edge both the source and destination
+     size must be adjusted to reflect the visible portion. For the source width,
+     you must take into account the scaling when calculating the new value.
+--------------------------------------------------------------------------------
+
+283C
+      bits 0:31
+	Decoder Y horizontal scaling
+		    Normally = Reg 2854 >> 2
+---------------
+2840
+      bits 0:31
+	Decoder ?? unknown - horizontal scaling
+	  Usually 0x00080514
+---------------
+2844
+      bits 0:31
+	Decoder UV horizontal scaling
+	  Normally = Reg 2854 >> 2
+---------------
+2848
+      bits 0:31
+	Decoder ?? unknown - horizontal scaling
+	  Usually 0x00100514
+---------------
+284C
+      bits 0:31
+	Decoder ?? unknown - Y plane
+	  Usually 0x00200020
+---------------
+2850
+      bits 0:31
+	Decoder ?? unknown - UV plane
+	  Usually 0x00200020
+---------------
+2854
+      bits 0:31
+	Decoder 'master' value for horizontal scaling
+---------------
+2858
+      bits 0:31
+	Decoder ?? unknown
+	  Usually 0
+---------------
+285C
+      bits 0:31
+	Decoder ?? unknown
+	  Normally = Reg 2854 >> 1
+---------------
+2860
+      bits 0:31
+	Decoder ?? unknown
+	  Usually 0
+---------------
+2864
+      bits 0:31
+	Decoder ?? unknown
+	  Normally = Reg 2854 >> 1
+---------------
+2868
+      bits 0:31
+	Decoder ?? unknown
+	  Usually 0
+
+     Most of these registers either control horizontal scaling, or appear linked
+     to it in some way. Register 2854 contains the 'master' value & the other
+     registers can be calculated from that one. You must also remember to
+     correctly set the divider in Reg 2874.
+
+     To enlarge:
+	     Reg 2854 = (source_width * 0x00200000) / destination_width
+	     Reg 2874 = No divide
+
+     To reduce from full size down to half size:
+	     Reg 2854 = (source_width/2 * 0x00200000) / destination width
+	     Reg 2874 = Divide by 2
+
+     To reduce from half size down to quarter size:
+	     Reg 2854 = (source_width/4 * 0x00200000) / destination width
+	     Reg 2874 = Divide by 4
+
+     The result is always rounded up.
+
+--------------------------------------------------------------------------------
+286C
+      bits 0:15
+	Decoder horizontal Y buffer offset
+
+      bits 15:31
+	Decoder horizontal UV buffer offset
+
+     Offset into the video image buffer. If the offset is gradually incremented,
+     the on screen image will move left & wrap around higher up on the right.
+
+--------------------------------------------------------------------------------
+2870
+      bits 0:15
+	Decoder horizontal Y output offset
+
+      bits 16:31
+	Decoder horizontal UV output offset
+
+     Offsets the actual video output. Controls output alignment of the Y & UV
+     planes. The higher the value, the greater the shift to the left. Use
+     reg 2890 to move the image right.
+
+--------------------------------------------------------------------------------
+2874
+      bits 0:1
+	Decoder horizontal Y output size divider
+	  00 = No divide
+	  01 = Divide by 2
+	  10 = Divide by 3
+
+      bits 4:5
+	Decoder horizontal UV output size divider
+	  00 = No divide
+	  01 = Divide by 2
+	  10 = Divide by 3
+
+      bit 8
+	Decoder ?? unknown
+	  0 = Normal
+	  1 = Affects video output levels
+
+      bit 16
+	Decoder ?? unknown
+	  0 = Normal
+	  1 = Disable horizontal filter
+
+--------------------------------------------------------------------------------
+2878
+      bit 0
+	?? unknown
+
+      bit 1
+	osd on/off
+	  0 = osd off
+	  1 = osd on
+
+      bit 2
+	Decoder + osd video timing
+	  0 = NTSC
+	  1 = PAL
+
+      bits 3:4
+	?? unknown
+
+      bit 5
+	Decoder + osd
+	  Swaps upper & lower fields
+
+--------------------------------------------------------------------------------
+287C
+      bits 0:10
+	Decoder & osd ?? unknown
+	  Moves entire screen horizontally. Starts at 0x005 with the screen
+	  shifted heavily to the right. Incrementing in steps of 0x004 will
+	  gradually shift the screen to the left.
+
+      bits 11:31
+	?? unknown
+
+     Normally contents are 0x00101111 (NTSC) or 0x1010111d (PAL)
+
+--------------------------------------------------------------------------------
+2880  --------    ?? unknown
+2884  --------    ?? unknown
+--------------------------------------------------------------------------------
+2888
+      bit 0
+	Decoder + osd ?? unknown
+	  0 = Normal
+	  1 = Misaligned fields (Correctable through 289C & 28A4)
+
+      bit 4
+	?? unknown
+
+      bit 8
+	?? unknown
+
+     Warning: Bad values will require a firmware reload to recover.
+		 Known to be bad are 0x000,0x011,0x100,0x111
+--------------------------------------------------------------------------------
+288C
+      bits 0:15
+	osd ?? unknown
+	  Appears to affect the osd position stability. The higher the value the
+	  more unstable it becomes. Decoder output remains stable.
+
+      bits 16:31
+	osd ?? unknown
+	  Same as bits 0:15
+
+--------------------------------------------------------------------------------
+2890
+      bits 0:11
+	Decoder output horizontal offset.
+
+     Horizontal offset moves the video image right. A small left shift is
+     possible, but it's better to use reg 2870 for that due to its greater
+     range.
+
+     NOTE: Video corruption will occur if video window is shifted off the right
+     edge. To avoid this read the notes for 2834 & 2838.
+--------------------------------------------------------------------------------
+2894
+      bits 0:23
+	Decoder output video surround colour.
+
+     Contains the colour (in yuv) used to fill the screen when the video is
+     running in a window.
+--------------------------------------------------------------------------------
+2898
+      bits 0:23
+	Decoder video window colour
+	  Contains the colour (in yuv) used to fill the video window when the
+	  video is turned off.
+
+      bit 24
+	Decoder video output
+	  0 = Video on
+	  1 = Video off
+
+      bit 28
+	Decoder plane order
+	  0 = Y,UV
+	  1 = UV,Y
+
+      bit 29
+	Decoder second plane byte order
+	  0 = Normal (UV)
+	  1 = Swapped (VU)
+
+     In normal usage, the first plane is Y & the second plane is UV. Though the
+     order of the planes can be swapped, only the byte order of the second plane
+     can be swapped. This isn't much use for the Y plane, but can be useful for
+     the UV plane.
+
+--------------------------------------------------------------------------------
+289C
+      bits 0:15
+	Decoder vertical field offset 1
+
+      bits 16:31
+	Decoder vertical field offset 2
+
+     Controls field output vertical alignment. The higher the number, the lower
+     the image on screen. Known starting values are 0x011E0017 (NTSC) &
+     0x01500017 (PAL)
+--------------------------------------------------------------------------------
+28A0
+      bits 0:15
+	Decoder & osd width in pixels
+
+      bits 16:31
+	Decoder & osd height in pixels
+
+     All output from the decoder & osd are disabled beyond this area. Decoder
+     output will simply go black outside of this region. If the osd tries to
+     exceed this area it will become corrupt.
+--------------------------------------------------------------------------------
+28A4
+      bits 0:11
+	osd left shift.
+
+     Has a range of 0x770->0x7FF. With the exception of 0, any value outside of
+     this range corrupts the osd.
+--------------------------------------------------------------------------------
+28A8
+      bits 0:15
+	osd vertical field offset 1
+
+      bits 16:31
+	osd vertical field offset 2
+
+     Controls field output vertical alignment. The higher the number, the lower
+     the image on screen. Known starting values are 0x011E0017 (NTSC) &
+     0x01500017 (PAL)
+--------------------------------------------------------------------------------
+28AC  --------    ?? unknown
+ |
+ V
+28BC  --------    ?? unknown
+--------------------------------------------------------------------------------
+28C0
+      bit 0
+	Current output field
+	  0 = first field
+	  1 = second field
+
+      bits 16:31
+	Current scanline
+	  The scanline counts from the top line of the first field
+	  through to the last line of the second field.
+--------------------------------------------------------------------------------
+28C4  --------    ?? unknown
+ |
+ V
+28F8  --------    ?? unknown
+--------------------------------------------------------------------------------
+28FC
+      bit 0
+	?? unknown
+	  0 = Normal
+	  1 = Breaks decoder & osd output
+--------------------------------------------------------------------------------
+2900
+      bits 0:31
+	Decoder vertical Y alias register 1
+---------------
+2904
+      bits 0:31
+	Decoder vertical Y alias register 2
+---------------