Re: [2.6 patch] select for drivers/media

From: Michael Hunold
Date: Mon Sep 29 2003 - 13:39:19 EST

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Hello Greg, Adrian,

Your patch looks fine to me.

Ok, here comes my suggestion: 8-)

"VIDEO_SAA7146" consists of two parts: saa7146.o and saa7146_vv.o
The former contains the low level functions only, whereas the second
one has all the *v*ideo and *v*bi functions, too.

So I split the stuff into VIDEO_SAA7146 and VIDEO_SAA7146_VV.

The reason is, that the so-called DVB budget cards without MPEG-Deocder
only need the core functions, while the full-featured cards with
MPEG-Decoder need both modules plus Video4Linux support. The budget cards
work just fine without Video4Linux.

So here it comes: The idea is to allow the user to basically select
everything. If a subsystem or utitlity stuff is needed (NET, INET, PCI, USB, I2C)
it's selected automatically.

Before, users had to set all these things correctly, before they could
even see the drivers. A co-worked argued, that now stuff is automatically
selected and experienced user now have to find out which driver toggled which
setting. He said that this is almost as bad as before.

What do you think?

Ok, here are some comments to the patch:

diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/common/Kconfig linux-2.6.0-test6/drivers/media/common/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/common/Kconfig 2003-09-10 11:28:54.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/common/Kconfig 2003-09-29 14:17:09.000000000 +0200
@@ -1,11 +1,13 @@
config VIDEO_SAA7146
+ select I2C
+ select PCI
tristate
- default y if DVB_AV7110=y || DVB_BUDGET=y || DVB_BUDGET_AV=y || VIDEO_MXB=y || VIDEO_DPC=y || VIDEO_HEXIUM_ORION=y || VIDEO_HEXIUM_GEMINI=y
- default m if DVB_AV7110=m || DVB_BUDGET=m || DVB_BUDGET_AV=m || VIDEO_MXB=m || VIDEO_DPC=m || VIDEO_HEXIUM_ORION=m || VIDEO_HEXIUM_GEMINI=m
- depends on VIDEO_DEV && PCI && I2C
+
+config VIDEO_SAA7146_VV
+ tristate
+ select VIDEO_BUF
+ select VIDEO_VIDEOBUF
+ select VIDEO_SAA7146

config VIDEO_VIDEOBUF
tristate
- default y if VIDEO_SAA7134=y || VIDEO_BT848=y || VIDEO_SAA7146=y
- default m if VIDEO_SAA7134=m || VIDEO_BT848=m || VIDEO_SAA7146=m
- depends on VIDEO_DEV

VIDEO_SAA7146 needs I2C and PCI to function. VIDEO_SAA7146_VV needs VIDEO_BUF,
VIDEO_VIDEOBUF and VIDEO_SAA7146.

diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/Kconfig linux-2.6.0-test6/drivers/media/dvb/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/Kconfig 2003-09-10 11:28:41.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/Kconfig 2003-09-29 14:38:43.000000000 +0200
@@ -3,16 +3,18 @@
#

menu "Digital Video Broadcasting Devices"
- depends on NET && INET

config DVB
bool "DVB For Linux"
+ select NET
+ select INET
+ select DVB_CORE
---help---
Support Digital Video Broadcasting hardware. Enable this if you
own a DVB adapter and want to use it or if you compile Linux for
a digital SetTopBox.

- API specs and user tools and are available for example from
+ API specs and user tools are available from
<http://www.linuxtv.org/>.

I simplified the handling here. Instead of relying that the user
has NET and INET set, DVB depends on this. Set DVB_CORE automatically
-- if somebody wants DVB support, he wants the DVB_CORE stuff, too...

@@ -33,18 +35,18 @@
source "drivers/media/dvb/frontends/Kconfig"

comment "Supported SAA7146 based PCI Adapters"
- depends on DVB && PCI
+ depends on DVB_CORE

source "drivers/media/dvb/ttpci/Kconfig"

comment "Supported USB Adapters"
- depends on DVB && USB
+ depends on DVB_CORE

source "drivers/media/dvb/ttusb-budget/Kconfig"
source "drivers/media/dvb/ttusb-dec/Kconfig"

comment "Supported FlexCopII (B2C2) Adapters"
- depends on DVB && PCI
+ depends on DVB_CORE
source "drivers/media/dvb/b2c2/Kconfig"

Make every bigger "subsystem" depend on DVB_CORE. The drivers are all
selectable by default, they set the corresponding dependencies
(PCI or USB) later on.

endmenu
diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/b2c2/Kconfig linux-2.6.0-test6/drivers/media/dvb/b2c2/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/b2c2/Kconfig 2003-09-10 11:28:41.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/b2c2/Kconfig 2003-09-29 14:35:30.000000000 +0200
@@ -1,6 +1,7 @@
config DVB_B2C2_SKYSTAR
tristate "Technisat Skystar2 PCI"
depends on DVB_CORE
+ select PCI
help
Support for the Skystar2 PCI DVB card by Technisat, which
is equipped with the FlexCopII chipset by B2C2.

B2C2 needs PCI.

diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/ttpci/Kconfig linux-2.6.0-test6/drivers/media/dvb/ttpci/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/ttpci/Kconfig 2003-09-29 13:58:00.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/ttpci/Kconfig 2003-09-29 14:28:39.000000000 +0200
@@ -1,6 +1,8 @@
config DVB_AV7110
tristate "AV7110 cards"
- depends on VIDEO_DEV && DVB_CORE
+ depends on DVB_CORE
+ select VIDEO_DEV
+ select VIDEO_SAA7146_VV
help
Support for SAA7146 and AV7110 based DVB cards as produced
by Fujitsu-Siemens, Technotrend, Hauppauge and others.

This is the full-featured card which needs everything: VIDEO_DEV for Video4Linux,
VIDEO_SAA7146_VV for video&vbi saa7146 support.

@@ -26,6 +28,7 @@
config DVB_BUDGET
tristate "Budget cards"
depends on DVB_CORE
+ select VIDEO_SAA7146
help
Support for simple SAA7146 based DVB cards
(so called Budget- or Nova-PCI cards) without onboard
@@ -38,7 +41,8 @@

config DVB_BUDGET_CI
tristate "Budget cards with onboard CI connector"
- depends on VIDEO_DEV && DVB_CORE && DVB_BUDGET
+ depends on DVB_CORE
+ select VIDEO_SAA7146
help
Support for simple SAA7146 based DVB cards
(so called Budget- or Nova-PCI cards) without onboard
@@ -51,7 +55,9 @@

config DVB_BUDGET_AV
tristate "Budget cards with analog video inputs"
- depends on VIDEO_DEV && DVB_CORE && DVB_BUDGET
+ depends on DVB_CORE
+ select VIDEO_DEV
+ select VIDEO_SAA7146_VV
help
Support for simple SAA7146 based DVB cards
(so called Budget- or Nova-PCI cards) without onboard
@@ -64,7 +70,9 @@

The "budget" cards only need the core functionality of saa7146.

config DVB_BUDGET_PATCH
tristate "AV7110 cards with Budget Patch"
- depends on DVB_CORE && DVB_BUDGET
+ depends on DVB_BUDGET
+ select VIDEO_DEV
+ select VIDEO_SAA7146_VV
help
Support for Budget Patch (full TS) modification on
SAA7146+AV7110 based cards (DVB-S cards). This

This is basically the "full" av7110 card, but with hardware modifications to
behave like a "budget" card...

diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/ttusb-budget/Kconfig linux-2.6.0-test6/drivers/media/dvb/ttusb-budget/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/ttusb-budget/Kconfig 2003-09-10 11:28:41.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/ttusb-budget/Kconfig 2003-09-29 14:35:15.000000000 +0200
@@ -1,6 +1,7 @@
config DVB_TTUSB_BUDGET
tristate "Technotrend/Hauppauge Nova-USB devices"
- depends on DVB_CORE && USB
+ depends on DVB_CORE
+ select USB
help
Support for external USB adapters designed by Technotrend and
produced by Hauppauge, shipped under the brand name 'Nova-USB'.
diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/ttusb-dec/Kconfig linux-2.6.0-test6/drivers/media/dvb/ttusb-dec/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/ttusb-dec/Kconfig 2003-09-10 11:29:20.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/ttusb-dec/Kconfig 2003-09-29 14:36:01.000000000 +0200
@@ -1,6 +1,8 @@
config DVB_TTUSB_DEC
tristate "Technotrend/Hauppauge USB DEC2000-T devices"
- depends on DVB_CORE && USB && !STANDALONE
+ depends on DVB_CORE
+ depends on !STANDALONE
+ select USB
help
Support for external USB adapters designed by Technotrend and
produced by Hauppauge, shipped under the brand name 'DEC2000-T'.

The USB drivers need USB to work. What does STANDALONE mean?

diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/video/Kconfig linux-2.6.0-test6/drivers/media/video/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/video/Kconfig 2003-09-29 13:58:00.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/video/Kconfig 2003-09-29 14:13:01.000000000 +0200
@@ -228,7 +228,7 @@

config VIDEO_MXB
tristate "Siemens-Nixdorf 'Multimedia eXtension Board'"
- depends on VIDEO_DEV && PCI && I2C
+ select VIDEO_SAA7146_VV
---help---
This is a video4linux driver for the 'Multimedia eXtension Board'
TV card by Siemens-Nixdorf.
@@ -238,7 +238,7 @@

config VIDEO_DPC
tristate "Philips-Semiconductors 'dpc7146 demonstration board'"
- depends on VIDEO_DEV && PCI && I2C
+ select VIDEO_SAA7146_VV
---help---
This is a video4linux driver for the 'dpc7146 demonstration
board' by Philips-Semiconductors. It's the reference design
@@ -251,7 +251,7 @@

[...]

These are the "analog" drivers using the saa7146. They all need VIDEO_SAA7146_VV.

Ok, that's it. I'm planning to submit a DVB patchset for Linus within the next days.
I can incorporated these changes within my patchset easily.

CU
Michael.

diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/common/Kconfig linux-2.6.0-test6/drivers/media/common/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/common/Kconfig 2003-09-10 11:28:54.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/common/Kconfig 2003-09-29 14:17:09.000000000 +0200
@@ -1,11 +1,13 @@
config VIDEO_SAA7146
+ select I2C
+ select PCI
tristate
- default y if DVB_AV7110=y || DVB_BUDGET=y || DVB_BUDGET_AV=y || VIDEO_MXB=y || VIDEO_DPC=y || VIDEO_HEXIUM_ORION=y || VIDEO_HEXIUM_GEMINI=y
- default m if DVB_AV7110=m || DVB_BUDGET=m || DVB_BUDGET_AV=m || VIDEO_MXB=m || VIDEO_DPC=m || VIDEO_HEXIUM_ORION=m || VIDEO_HEXIUM_GEMINI=m
- depends on VIDEO_DEV && PCI && I2C
+
+config VIDEO_SAA7146_VV
+ tristate
+ select VIDEO_BUF
+ select VIDEO_VIDEOBUF
+ select VIDEO_SAA7146

config VIDEO_VIDEOBUF
tristate
- default y if VIDEO_SAA7134=y || VIDEO_BT848=y || VIDEO_SAA7146=y
- default m if VIDEO_SAA7134=m || VIDEO_BT848=m || VIDEO_SAA7146=m
- depends on VIDEO_DEV
diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/common/Makefile linux-2.6.0-test6/drivers/media/common/Makefile
--- xx-linux-2.6.0-test6/drivers/media/common/Makefile 2003-09-10 11:28:41.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/common/Makefile 2003-09-29 14:08:58.000000000 +0200
@@ -1,5 +1,6 @@
saa7146-objs := saa7146_i2c.o saa7146_core.o
saa7146_vv-objs := saa7146_vv_ksyms.o saa7146_fops.o saa7146_video.o saa7146_hlp.o saa7146_vbi.o

-obj-$(CONFIG_VIDEO_SAA7146) += saa7146.o saa7146_vv.o
+obj-$(CONFIG_VIDEO_SAA7146) += saa7146.o
+obj-$(CONFIG_VIDEO_SAA7146_VV) += saa7146_vv.o

diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/Kconfig linux-2.6.0-test6/drivers/media/dvb/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/Kconfig 2003-09-10 11:28:41.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/Kconfig 2003-09-29 14:38:43.000000000 +0200
@@ -3,16 +3,18 @@
#

menu "Digital Video Broadcasting Devices"
- depends on NET && INET

config DVB
bool "DVB For Linux"
+ select NET
+ select INET
+ select DVB_CORE
---help---
Support Digital Video Broadcasting hardware. Enable this if you
own a DVB adapter and want to use it or if you compile Linux for
a digital SetTopBox.

- API specs and user tools and are available for example from
+ API specs and user tools are available from
<http://www.linuxtv.org/>.

Please report problems regarding this driver to the LinuxDVB
@@ -33,18 +35,18 @@
source "drivers/media/dvb/frontends/Kconfig"

comment "Supported SAA7146 based PCI Adapters"
- depends on DVB && PCI
+ depends on DVB_CORE

source "drivers/media/dvb/ttpci/Kconfig"

comment "Supported USB Adapters"
- depends on DVB && USB
+ depends on DVB_CORE

source "drivers/media/dvb/ttusb-budget/Kconfig"
source "drivers/media/dvb/ttusb-dec/Kconfig"

comment "Supported FlexCopII (B2C2) Adapters"
- depends on DVB && PCI
+ depends on DVB_CORE
source "drivers/media/dvb/b2c2/Kconfig"

endmenu
diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/b2c2/Kconfig linux-2.6.0-test6/drivers/media/dvb/b2c2/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/b2c2/Kconfig 2003-09-10 11:28:41.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/b2c2/Kconfig 2003-09-29 14:35:30.000000000 +0200
@@ -1,6 +1,7 @@
config DVB_B2C2_SKYSTAR
tristate "Technisat Skystar2 PCI"
depends on DVB_CORE
+ select PCI
help
Support for the Skystar2 PCI DVB card by Technisat, which
is equipped with the FlexCopII chipset by B2C2.
diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/dvb-core/Kconfig linux-2.6.0-test6/drivers/media/dvb/dvb-core/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/dvb-core/Kconfig 2003-09-29 13:58:00.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/dvb-core/Kconfig 2003-09-29 15:50:51.000000000 +0200
@@ -4,5 +4,8 @@
select CRC32
help
DVB core utility functions for device handling, software fallbacks etc.
+ Say Y when you have a DVB card and want to use it. Say Y if your want
+ to build your drivers outside the kernel, but need the DVB core. All
+ in-kernel drivers will select this automatically if needed.
+ If unsure say N.

- Say Y when you have a DVB card and want to use it. If unsure say N.
diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/ttpci/Kconfig linux-2.6.0-test6/drivers/media/dvb/ttpci/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/ttpci/Kconfig 2003-09-29 13:58:00.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/ttpci/Kconfig 2003-09-29 14:28:39.000000000 +0200
@@ -1,6 +1,8 @@
config DVB_AV7110
tristate "AV7110 cards"
- depends on VIDEO_DEV && DVB_CORE
+ depends on DVB_CORE
+ select VIDEO_DEV
+ select VIDEO_SAA7146_VV
help
Support for SAA7146 and AV7110 based DVB cards as produced
by Fujitsu-Siemens, Technotrend, Hauppauge and others.
@@ -26,6 +28,7 @@
config DVB_BUDGET
tristate "Budget cards"
depends on DVB_CORE
+ select VIDEO_SAA7146
help
Support for simple SAA7146 based DVB cards
(so called Budget- or Nova-PCI cards) without onboard
@@ -38,7 +41,8 @@

config DVB_BUDGET_CI
tristate "Budget cards with onboard CI connector"
- depends on VIDEO_DEV && DVB_CORE && DVB_BUDGET
+ depends on DVB_CORE
+ select VIDEO_SAA7146
help
Support for simple SAA7146 based DVB cards
(so called Budget- or Nova-PCI cards) without onboard
@@ -51,7 +55,9 @@

config DVB_BUDGET_AV
tristate "Budget cards with analog video inputs"
- depends on VIDEO_DEV && DVB_CORE && DVB_BUDGET
+ depends on DVB_CORE
+ select VIDEO_DEV
+ select VIDEO_SAA7146_VV
help
Support for simple SAA7146 based DVB cards
(so called Budget- or Nova-PCI cards) without onboard
@@ -64,7 +70,9 @@

config DVB_BUDGET_PATCH
tristate "AV7110 cards with Budget Patch"
- depends on DVB_CORE && DVB_BUDGET
+ depends on DVB_BUDGET
+ select VIDEO_DEV
+ select VIDEO_SAA7146_VV
help
Support for Budget Patch (full TS) modification on
SAA7146+AV7110 based cards (DVB-S cards). This
diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/ttusb-budget/Kconfig linux-2.6.0-test6/drivers/media/dvb/ttusb-budget/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/ttusb-budget/Kconfig 2003-09-10 11:28:41.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/ttusb-budget/Kconfig 2003-09-29 14:35:15.000000000 +0200
@@ -1,6 +1,7 @@
config DVB_TTUSB_BUDGET
tristate "Technotrend/Hauppauge Nova-USB devices"
- depends on DVB_CORE && USB
+ depends on DVB_CORE
+ select USB
help
Support for external USB adapters designed by Technotrend and
produced by Hauppauge, shipped under the brand name 'Nova-USB'.
diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/dvb/ttusb-dec/Kconfig linux-2.6.0-test6/drivers/media/dvb/ttusb-dec/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/dvb/ttusb-dec/Kconfig 2003-09-10 11:29:20.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/dvb/ttusb-dec/Kconfig 2003-09-29 14:36:01.000000000 +0200
@@ -1,6 +1,8 @@
config DVB_TTUSB_DEC
tristate "Technotrend/Hauppauge USB DEC2000-T devices"
- depends on DVB_CORE && USB && !STANDALONE
+ depends on DVB_CORE
+ depends on !STANDALONE
+ select USB
help
Support for external USB adapters designed by Technotrend and
produced by Hauppauge, shipped under the brand name 'DEC2000-T'.
diff -uNrwB --new-file -uraN xx-linux-2.6.0-test6/drivers/media/video/Kconfig linux-2.6.0-test6/drivers/media/video/Kconfig
--- xx-linux-2.6.0-test6/drivers/media/video/Kconfig 2003-09-29 13:58:00.000000000 +0200
+++ linux-2.6.0-test6/drivers/media/video/Kconfig 2003-09-29 14:13:01.000000000 +0200
@@ -228,7 +228,7 @@

config VIDEO_MXB
tristate "Siemens-Nixdorf 'Multimedia eXtension Board'"
- depends on VIDEO_DEV && PCI && I2C
+ select VIDEO_SAA7146_VV
---help---
This is a video4linux driver for the 'Multimedia eXtension Board'
TV card by Siemens-Nixdorf.
@@ -238,7 +238,7 @@

config VIDEO_DPC
tristate "Philips-Semiconductors 'dpc7146 demonstration board'"
- depends on VIDEO_DEV && PCI && I2C
+ select VIDEO_SAA7146_VV
---help---
This is a video4linux driver for the 'dpc7146 demonstration
board' by Philips-Semiconductors. It's the reference design
@@ -251,7 +251,7 @@

config VIDEO_HEXIUM_ORION
tristate "Hexium HV-PCI6 and Orion frame grabber"
- depends on VIDEO_DEV && PCI && I2C
+ select VIDEO_SAA7146_VV
---help---
This is a video4linux driver for the Hexium HV-PCI6 and
Orion frame grabber cards by Hexium.
@@ -261,7 +261,7 @@

config VIDEO_HEXIUM_GEMINI
tristate "Hexium Gemini frame grabber"
- depends on VIDEO_DEV && PCI && I2C
+ select VIDEO_SAA7146_VV
---help---
This is a video4linux driver for the Hexium Gemini frame
grabber card by Hexium. Please note that the Gemini Dual

Next message: Jean-Guillaume: "Re: Simple Procfs question: Triggering an "action" when opening adirectory instead of a file (with seqfile.h)???"
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