V4L/DVB (6508): ttpci: Rework Kconfig menus and Makefile

The ttpci Kconfig file has bugs that cause it to fail in certain Kconfig
situations.  The basic problem is that it selects certain drivers, but does
not depend on the dependencies of those drivers.

See http://article.gmane.org/gmane.comp.video.video4linux/35072

Using the Kconfig file also has some annoyances.  For instance one can't turn
off AV7110 support unless you go down several options and first turn off
budget-patch support.  Normally user selectable drivers are not forced on like
this.

The "AV7110 cards with Budget Patch" option is disabled if "Budget cards"
isn't on.  Normally a driver appears nested under a driver it depends on, but
since drivers that don't depend on "Budget cards" are between the two options,
the config programs can't display the tree correctly.

The Makefile has an issue too.  Some modules, ttpci-eeprom and budget-core,
appear in the Makefile under several different config symbols.  If more than
one of these symbols is on, they will get added the to list of objects
multiple times.  The normal convention is to have a config symbol just the
common object(s) and have the users of the that object either depend on or
select that config symbol.

This patch fixes all these issues.  ttpci-eepom is under a new config symbol,
and so is the budget-core module.  The four different budget card types appear
as sub-drivers under a main "SAA7146 DVB cards" option.  Turning on
budget-patch doesn't force AV7110.  Drivers using SAA7146_VV have the
necessary VIDEO_DEV dependency, so that it isn't possible to select SAA7146_VV
without V4L being on.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/common/Kconfig

@@ -1,6 +1,6 @@
 config VIDEO_SAA7146
 	tristate
-	depends on I2C
+	depends on I2C && PCI
 
 config VIDEO_SAA7146_VV
 	tristate

drivers/media/dvb/ttpci/Kconfig

@@ -1,8 +1,14 @@
+config TTPCI_EEPROM
+	tristate
+	default n
+
 config DVB_AV7110
 	tristate "AV7110 cards"
 	depends on DVB_CORE && PCI && I2C
 	select FW_LOADER if !DVB_AV7110_FIRMWARE
+	select TTPCI_EEPROM
 	select VIDEO_SAA7146_VV
+	depends on VIDEO_DEV	# dependencies of VIDEO_SAA7146_VV
 	select DVB_VES1820 if !DVB_FE_CUSTOMISE
 	select DVB_VES1X93 if !DVB_FE_CUSTOMISE
 	select DVB_STV0299 if !DVB_FE_CUSTOMISE
@@ -57,10 +63,19 @@ config DVB_AV7110_OSD
 
 	  All other people say N.
 
-config DVB_BUDGET
-	tristate "Budget cards"
+config DVB_BUDGET_CORE
+	tristate "SAA7146 DVB cards (aka Budget, Nova-PCI)"
 	depends on DVB_CORE && PCI && I2C
 	select VIDEO_SAA7146
+	select TTPCI_EEPROM
+	help
+	  Support for simple SAA7146 based DVB cards
+	  (so called Budget- or Nova-PCI cards) without onboard
+	  MPEG2 decoder.
+
+config DVB_BUDGET
+	tristate "Budget cards"
+	depends on DVB_BUDGET_CORE && I2C
 	select DVB_STV0299 if !DVB_FE_CUSTOMISE
 	select DVB_VES1X93 if !DVB_FE_CUSTOMISE
 	select DVB_VES1820 if !DVB_FE_CUSTOMISE
@@ -73,9 +88,9 @@ config DVB_BUDGET
 	select DVB_TDA826X if !DVB_FE_CUSTOMISE
 	select DVB_LNBP21 if !DVB_FE_CUSTOMISE
 	help
-	  Support for simple SAA7146 based DVB cards
-	  (so called Budget- or Nova-PCI cards) without onboard
-	  MPEG2 decoder.
+	  Support for simple SAA7146 based DVB cards (so called Budget-
+	  or Nova-PCI cards) without onboard MPEG2 decoder, and without
+	  analog inputs or an onboard Common Interface connector.
 
 	  Say Y if you own such a card and want to use it.
 
@@ -84,8 +99,7 @@ config DVB_BUDGET
 
 config DVB_BUDGET_CI
 	tristate "Budget cards with onboard CI connector"
-	depends on DVB_CORE && PCI && I2C && INPUT
-	select VIDEO_SAA7146
+	depends on DVB_BUDGET_CORE && I2C
 	select DVB_STV0297 if !DVB_FE_CUSTOMISE
 	select DVB_STV0299 if !DVB_FE_CUSTOMISE
 	select DVB_TDA1004X if !DVB_FE_CUSTOMISE
@@ -106,8 +120,9 @@ config DVB_BUDGET_CI
 
 config DVB_BUDGET_AV
 	tristate "Budget cards with analog video inputs"
-	depends on DVB_CORE && PCI && I2C
+	depends on DVB_BUDGET_CORE && I2C
 	select VIDEO_SAA7146_VV
+	depends on VIDEO_DEV	# dependencies of VIDEO_SAA7146_VV
 	select DVB_PLL if !DVB_FE_CUSTOMISE
 	select DVB_STV0299 if !DVB_FE_CUSTOMISE
 	select DVB_TDA1004X if !DVB_FE_CUSTOMISE
@@ -127,8 +142,8 @@ config DVB_BUDGET_AV
 
 config DVB_BUDGET_PATCH
 	tristate "AV7110 cards with Budget Patch"
-	depends on DVB_CORE && DVB_BUDGET
-	select DVB_AV7110
+	depends on DVB_BUDGET_CORE && I2C
+	depends on DVB_AV7110
 	select DVB_STV0299 if !DVB_FE_CUSTOMISE
 	select DVB_VES1X93 if !DVB_FE_CUSTOMISE
 	select DVB_TDA8083 if !DVB_FE_CUSTOMISE

drivers/media/dvb/ttpci/Makefile

@@ -5,11 +5,13 @@
 
 dvb-ttpci-objs := av7110_hw.o av7110_v4l.o av7110_av.o av7110_ca.o av7110.o av7110_ipack.o av7110_ir.o
 
-obj-$(CONFIG_DVB_BUDGET) += budget-core.o budget.o ttpci-eeprom.o
-obj-$(CONFIG_DVB_BUDGET_AV) += budget-core.o budget-av.o ttpci-eeprom.o
-obj-$(CONFIG_DVB_BUDGET_CI) += budget-core.o budget-ci.o ttpci-eeprom.o
-obj-$(CONFIG_DVB_BUDGET_PATCH) += budget-core.o budget-patch.o ttpci-eeprom.o
-obj-$(CONFIG_DVB_AV7110) += dvb-ttpci.o ttpci-eeprom.o
+obj-$(CONFIG_TTPCI_EEPROM) += ttpci-eeprom.o
+obj-$(CONFIG_DVB_BUDGET_CORE) += budget-core.o
+obj-$(CONFIG_DVB_BUDGET) += budget.o
+obj-$(CONFIG_DVB_BUDGET_AV) += budget-av.o
+obj-$(CONFIG_DVB_BUDGET_CI) += budget-ci.o
+obj-$(CONFIG_DVB_BUDGET_PATCH) += budget-patch.o
+obj-$(CONFIG_DVB_AV7110) += dvb-ttpci.o
 
 EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/