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Commit 1c1e45d1 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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V4L/DVB (7786): cx18: new driver for the Conexant CX23418 MPEG encoder chip 



Many thanks to Steve Toth from Hauppauge and Nattu Dakshinamurthy from
Conexant for their support. I am in particular thankful to Hauppauge
since without their help this driver would not exist. It should also
be noted that Steve did the work to get the DVB part up and running.
Thank you!

Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarSteven Toth <stoth@hauppauge.com>
Signed-off-by: default avatarMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: default avatarG. Andrew Walls <awalls@radix.net>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent d74bee8b

Documentation/video4linux/cx18.txt

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Some notes regarding the cx18 driver for the Conexant CX23418 MPEG

encoder chip:



1) The only hardware currently supported is the Hauppauge HVR-1600.



2) Some people have problems getting the i2c bus to work. Cause unknown.

   The symptom is that the eeprom cannot be read and the card is

   unusable.



3) The audio from the analog tuner is mono only. Probably caused by

   incorrect audio register information in the datasheet. We are

   waiting for updated information from Conexant.



4) VBI (raw or sliced) has not yet been implemented.



5) MPEG indexing is not yet implemented.



6) The driver is still a bit rough around the edges, this should

   improve over time.





Firmware:



The firmware needs to be extracted from the Windows Hauppauge HVR-1600

driver, available here:



http://hauppauge.lightpath.net/software/install_cd/hauppauge_cd_3.4d1.zip



Unzip, then copy the following files to the firmware directory

and rename them as follows:



Drivers/Driver18/hcw18apu.rom -> v4l-cx23418-apu.fw

Drivers/Driver18/hcw18enc.rom -> v4l-cx23418-cpu.fw

Drivers/Driver18/hcw18mlC.rom -> v4l-cx23418-dig.fw

drivers/media/video/Kconfig

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@@ -748,6 +748,8 @@ source "drivers/media/video/au0828/Kconfig" 


source "drivers/media/video/ivtv/Kconfig"



source "drivers/media/video/cx18/Kconfig"



config VIDEO_M32R_AR

	tristate "AR devices"

	depends on M32R && VIDEO_V4L1

drivers/media/video/Makefile

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@@ -124,6 +124,7 @@ obj-$(CONFIG_USB_VICAM) += usbvideo/ 
obj-$(CONFIG_USB_QUICKCAM_MESSENGER)	+= usbvideo/



obj-$(CONFIG_VIDEO_IVTV) += ivtv/

obj-$(CONFIG_VIDEO_CX18) += cx18/



obj-$(CONFIG_VIDEO_VIVI) += vivi.o

obj-$(CONFIG_VIDEO_CX23885) += cx23885/

drivers/media/video/cx18/Kconfig

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config VIDEO_CX18

	tristate "Conexant cx23418 MPEG encoder support"

	depends on VIDEO_V4L2 && DVB_CORE && PCI && I2C && EXPERIMENTAL

	select I2C_ALGOBIT

	select FW_LOADER

	select VIDEO_IR

	select VIDEO_TUNER

	select VIDEO_TVEEPROM

	select VIDEO_CX2341X

	select VIDEO_CS5345

	select DVB_S5H1409

	---help---

	  This is a video4linux driver for Conexant cx23418 based

	  PCI combo video recorder devices.



	  This is used in devices such as the Hauppauge HVR-1600

	  cards.



	  To compile this driver as a module, choose M here: the

	  module will be called cx18.

drivers/media/video/cx18/Makefile

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cx18-objs    := cx18-driver.o cx18-cards.o cx18-i2c.o cx18-firmware.o cx18-gpio.o \

	cx18-queue.o cx18-streams.o cx18-fileops.o cx18-ioctl.o cx18-controls.o \

	cx18-mailbox.o cx18-vbi.o cx18-audio.o cx18-video.o cx18-irq.o \

	cx18-av-core.o cx18-av-audio.o cx18-av-firmware.o cx18-av-vbi.o cx18-scb.o \

	cx18-dvb.o



obj-$(CONFIG_VIDEO_CX18) += cx18.o



EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core

EXTRA_CFLAGS += -Idrivers/media/dvb/frontends

EXTRA_CFLAGS += -Idrivers/media/common/tuners