[media] media: reorganize the main Kconfig items

Change the main items to:

<m> Multimedia support  --->
   [ ]   Cameras/video grabbers support
   [ ]   Analog TV support
   [ ]   Digital TV support
   [ ]   AM/FM radio receivers/transmitters support
   [ ]   Remote Controller support

This provides an interface that is clearer to end users that
are compiling the Kernel, and will allow the building system
to automatically unselect drivers for unused functions.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 74 insertions, 35 deletions

diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index 9575db429df4..323b2f042d85 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -6,20 +6,82 @@ menuconfig MEDIA_SUPPORT
         tristate "Multimedia support"
         depends on HAS_IOMEM
         help
-          If you want to use Video for Linux, DVB for Linux, or DAB adapters,
+          If you want to use Webcams, Video grabber devices and/or TV devices
           enable this option and other options below.
+          Additional info and docs are available on the web at
+          <http://linuxtv.org>
 
 if MEDIA_SUPPORT
 
 comment "Multimedia core support"
 
 #
+# Multimedia support - automatically enable V4L2 and DVB core
+#
+config MEDIA_CAMERA_SUPPORT
+        bool "Cameras/video grabbers support"
+        ---help---
+          Enable support for webcams and video grabbers.
+
+          Say Y when you have a webcam or a video capture grabber board.
+
+config MEDIA_ANALOG_TV_SUPPORT
+        bool "Analog TV support"
+        ---help---
+          Enable analog TV support.
+
+          Say Y when you have a TV board with analog support or with a
+          hybrid analog/digital TV chipset.
+
+          Note: There are several DVB cards that are based on chips that
+                support both analog and digital TV. Disabling this option
+                will disable support for them.
+
+config MEDIA_DIGITAL_TV_SUPPORT
+        bool "Digital TV support"
+        ---help---
+          Enable digital TV support.
+
+          Say Y when you have a board with digital support or a board with
+          hybrid digital TV and analog TV.
+
+config MEDIA_RADIO_SUPPORT
+        bool "AM/FM radio receivers/transmitters support"
+        ---help---
+          Enable AM/FM radio support.
+
+          Additional info and docs are available on the web at
+          <http://linuxtv.org>
+
+          Say Y when you have a board with radio support.
+
+          Note: There are several TV cards that are based on chips that
+                support radio reception. Disabling this option will
+                disable support for them.
+
+menuconfig MEDIA_RC_SUPPORT
+        bool "Remote Controller support"
+        depends on INPUT
+        ---help---
+          Enable support for Remote Controllers on Linux. This is
+          needed in order to support several video capture adapters,
+          standalone IR receivers/transmitters, and RF receivers.
+
+          Enable this option if you have a video capture board even
+          if you don't need IR, as otherwise, you may not be able to
+          compile the driver for your adapter.
+
+          Say Y when you have a TV or an IR device.
+
+#
 # Media controller
+#       Selectable only for webcam/grabbers, as other drivers don't use it
 #
 
 config MEDIA_CONTROLLER
         bool "Media Controller API (EXPERIMENTAL)"
         depends on EXPERIMENTAL
+        depends on MEDIA_CAMERA_SUPPORT
         ---help---
           Enable the media controller API used to query media devices internal
           topology and configure it dynamically.
@@ -27,26 +89,15 @@ config MEDIA_CONTROLLER
           This API is mostly used by camera interfaces in embedded platforms.
 
 #
-# V4L core and enabled API's
+# Video4Linux support
+#       Only enables if one of the V4L2 types (ATV, webcam, radio) is selected
 #
 
 config VIDEO_DEV
-        tristate "Video For Linux"
-        ---help---
-          V4L core support for video capture and overlay devices, webcams and
-          AM/FM radio cards.
-
-          This kernel includes support for the new Video for Linux Two API,
-          (V4L2).
-
-          Additional info and docs are available on the web at
-          <http://linuxtv.org>
-
-          Documentation for V4L2 is also available on the web at
-          <http://bytesex.org/v4l/>.
-
-          To compile this driver as a module, choose M here: the
-          module will be called videodev.
+        tristate
+        depends on MEDIA_SUPPORT
+        depends on MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_RADIO_SUPPORT
+        default y
 
 config VIDEO_V4L2_COMMON
         tristate
@@ -64,25 +115,15 @@ config VIDEO_V4L2_SUBDEV_API
 
 #
 # DVB Core
+#       Only enables if one of DTV is selected
 #
 
 config DVB_CORE
-        tristate "DVB for Linux"
+        tristate
+        depends on MEDIA_SUPPORT
+        depends on MEDIA_DIGITAL_TV_SUPPORT
+        default y
         select CRC32
-        help
-          DVB core utility functions for device handling, software fallbacks etc.
-
-          Enable this if you own a DVB/ATSC adapter and want to use it or if
-          you compile Linux for a digital SetTopBox.
-
-          Say Y when you have a DVB or an ATSC card and want to use it.
-
-          API specs and user tools are available from <http://www.linuxtv.org/>.
-
-          Please report problems regarding this support to the LinuxDVB
-          mailing list.
-
-          If unsure say N.
 
 config DVB_NET
         bool "DVB Network Support"
@@ -101,8 +142,6 @@ config VIDEO_MEDIA
         tristate
         default (DVB_CORE && (VIDEO_DEV = n)) || (VIDEO_DEV && (DVB_CORE = n)) || (DVB_CORE && VIDEO_DEV)
 
-comment "Multimedia drivers"
-
 source "drivers/media/common/Kconfig"
 source "drivers/media/rc/Kconfig"