linux/drivers/media/video/cx88/Kconfig
Mauro Carvalho Chehab e32fadc4c2 V4L/DVB (10190): cx88: Fix some Kbuild troubles
As Randy Dunlap <randy.dunlap@oracle.com> reported, cx88 has some compilation issues:

drivers/built-in.o: In function `cx88_call_i2c_clients':
(.text+0x20af17): undefined reference to `videobuf_dvb_get_frontend'
drivers/built-in.o: In function `cx8802_probe':
cx88-mpeg.c:(.devinit.text+0x268c4): undefined reference to `videobuf_dvb_alloc_frontend'
cx88-mpeg.c:(.devinit.text+0x268ea): undefined reference to `videobuf_dvb_dealloc_frontends'

With those configs:

CONFIG_VIDEO_CX88=y
CONFIG_VIDEO_CX88_BLACKBIRD=y
CONFIG_VIDEO_CX88_DVB=m
CONFIG_DVB_CORE=m

After carefully examining the code, with the current code, several cx88 drivers
(cx8800, cx8802, cx88_dvb and cx88_blackbird) should be compiled as a module,
if one of them is marked as such. Just fixing Kconfig could create a very complex
set of rules. Also, this hides a problem with the current approach where the dvb
functionality weren't confined inside dvb module.

What happens is that:
	- cx88-i2c (part of cx8800) has some special rules if DVB;
	- cx88-mpeg (cx8802 module) has also part of DVB init code;
	- cx88-dvb has the rest of the dvb code;
	- cx88-blackbird can be used with cx88-mpeg, having cx88-dvb or not.

So, instead of doing some tricks at Kconfig and wait for a next breakage,
this patch moves the dvb code inside cx88-i2c and cx88-mpeg into cx88-dvb.

Another problem is that cx8802 were being compiled, even without cx88-dvb
and cx88-blackbird modules.

While on this code, let's fix also a reported problem:
http://www.linuxtv.org/pipermail/linux-dvb/2009-January/031225.html

A solution for the issue were proposed here:
http://www.mail-archive.com/linux-media@vger.kernel.org/msg00021.html

Thanks to Randy, Andy, Gregoire and Thomas for helping us to detect
and solve the issues.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-01-07 22:18:56 -02:00

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config VIDEO_CX88
tristate "Conexant 2388x (bt878 successor) support"
depends on VIDEO_DEV && PCI && I2C && INPUT
select I2C_ALGOBIT
select VIDEO_BTCX
select VIDEOBUF_DMA_SG
select VIDEO_TUNER
select VIDEO_TVEEPROM
select VIDEO_IR
select VIDEO_WM8775 if VIDEO_HELPER_CHIPS_AUTO
---help---
This is a video4linux driver for Conexant 2388x based
TV cards.
To compile this driver as a module, choose M here: the
module will be called cx8800
config VIDEO_CX88_ALSA
tristate "Conexant 2388x DMA audio support"
depends on VIDEO_CX88 && SND && EXPERIMENTAL
select SND_PCM
---help---
This is a video4linux driver for direct (DMA) audio on
Conexant 2388x based TV cards using ALSA.
It only works with boards with function 01 enabled.
To check if your board supports, use lspci -n.
If supported, you should see 14f1:8801 or 14f1:8811
PCI device.
To compile this driver as a module, choose M here: the
module will be called cx88-alsa.
config VIDEO_CX88_BLACKBIRD
tristate "Blackbird MPEG encoder support (cx2388x + cx23416)"
depends on VIDEO_CX88
select VIDEO_CX2341X
---help---
This adds support for MPEG encoder cards based on the
Blackbird reference design, using the Conexant 2388x
and 23416 chips.
To compile this driver as a module, choose M here: the
module will be called cx88-blackbird.
config VIDEO_CX88_DVB
tristate "DVB/ATSC Support for cx2388x based TV cards"
depends on VIDEO_CX88 && DVB_CORE
select VIDEOBUF_DVB
select DVB_PLL if !DVB_FE_CUSTOMISE
select DVB_MT352 if !DVB_FE_CUSTOMISE
select DVB_ZL10353 if !DVB_FE_CUSTOMISE
select DVB_OR51132 if !DVB_FE_CUSTOMISE
select DVB_CX22702 if !DVB_FE_CUSTOMISE
select DVB_LGDT330X if !DVB_FE_CUSTOMISE
select DVB_NXT200X if !DVB_FE_CUSTOMISE
select DVB_CX24123 if !DVB_FE_CUSTOMISE
select DVB_ISL6421 if !DVB_FE_CUSTOMISE
select DVB_S5H1411 if !DVB_FE_CUSTOMISE
select DVB_CX24116 if !DVB_FE_CUSTOMISE
select DVB_STV0299 if !DVB_FE_CUSTOMISE
select DVB_STV0288 if !DVB_FE_CUSTOMISE
select DVB_STB6000 if !DVB_FE_CUSTOMISE
select MEDIA_TUNER_SIMPLE if !MEDIA_TUNER_CUSTOMIZE
---help---
This adds support for DVB/ATSC cards based on the
Conexant 2388x chip.
To compile this driver as a module, choose M here: the
module will be called cx88-dvb.
config VIDEO_CX88_MPEG
tristate
depends on VIDEO_CX88_DVB || VIDEO_CX88_BLACKBIRD
default y
config VIDEO_CX88_VP3054
tristate "VP-3054 Secondary I2C Bus Support"
default m
depends on VIDEO_CX88_DVB && DVB_MT352
---help---
This adds DVB-T support for cards based on the
Conexant 2388x chip and the MT352 demodulator,
which also require support for the VP-3054
Secondary I2C bus, such at DNTV Live! DVB-T Pro.