kernel-packages: add DVB support and drivers

Adds DVB drivers intended to be used with tvheadend package and easily available Astrometa USB DVB tuners. More adapters can be added in the future.
This allows users to record and stream TV programs from DVB networks to tvheadend clients.

Changes:
- Add packages for these kernel modules:
  - Multimedia support (installs mc.ko)
  - DVB core (installs dvb-core.ko)
  - DVB USB v2 (installs dvb-usb-v2.ko)
  - Drivers for chips used in Astrometa DVB:
    - Rafael Micro R820T
    - Realtek RTL28xxU, RTL2830, RTL2832
    - Panasonic MN88472 (no firmware)
    - Panasonic MN88473 (no firmware)
    - Sony CXD2841ER
- Added new kernel config lines for v6.6
- USB audio needed a dependecy on kmod-multimedia, when kmod-multimedia is also selected.

Signed-off-by: Marius Dinu <m95d+git@psihoexpert.ro>

package/kernel/linux/modules/multimedia.mk

@@ -1,15 +1,29 @@
 MMEDIA_MENU:=Multimedia
 
+define KernelPackage/multimedia
+  SUBMENU:=$(MMEDIA_MENU)
+  TITLE:=Multimedia
+  KCONFIG:= \
+    CONFIG_MEDIA_SUPPORT \
+    CONFIG_MEDIA_SUPPORT_FILTER=y \
+    CONFIG_MEDIA_USB_SUPPORT=y
+  FILES:=$(LINUX_DIR)/drivers/media/mc/mc.ko
+  AUTOLOAD:=$(call AutoLoad,80,mc)
+endef
+define KernelPackage/multimedia/description
+  Kernel module for Multimedia support (cameras, TV tuners, DVB)
+endef
+$(eval $(call KernelPackage,multimedia))
+
 #
 # Video Capture
 #
 
 define KernelPackage/video-core
   SUBMENU:=$(MMEDIA_MENU)
   TITLE=Video4Linux support
-  DEPENDS:=+PACKAGE_kmod-i2c-core:kmod-i2c-core
+  DEPENDS:=+kmod-multimedia +PACKAGE_kmod-i2c-core:kmod-i2c-core
   KCONFIG:= \
-	CONFIG_MEDIA_SUPPORT \
 	CONFIG_MEDIA_CAMERA_SUPPORT=y \
 	CONFIG_VIDEO_DEV \
 	CONFIG_V4L_PLATFORM_DRIVERS=y \
@@ -664,3 +678,124 @@ define KernelPackage/video-gspca-konica/description
 endef
 
 $(eval $(call KernelPackage,video-gspca-konica))
+
+#
+# Tuners, radio, DVB
+#
+
+define KernelPackage/dvb-core
+  SUBMENU:=$(MMEDIA_MENU)
+  TITLE:=DVB core
+  KCONFIG:= \
+    CONFIG_MEDIA_ANALOG_TV_SUPPORT=y \
+    CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y \
+    CONFIG_DVB_CORE \
+    CONFIG_DVB_NET=n \
+    CONFIG_DVB_MAX_ADAPTERS=8 \
+    CONFIG_DVB_DYNAMIC_MINORS=n \
+    CONFIG_DVB_PLATFORM_DRIVERS=n
+  DEPENDS:=kmod-multimedia +kmod-i2c-core
+  FILES:=$(LINUX_DIR)/drivers/media/dvb-core/dvb-core.ko
+  AUTOLOAD:=$(call AutoLoad,81,dvb-core)
+endef
+define KernelPackage/dvb-core/description
+  Kernel module for generic DVB support.
+endef
+$(eval $(call KernelPackage,dvb-core))
+
+#### TODO: INSERT HERE DVB-USB (v1)
+
+define KernelPackage/dvb-usb-v2
+  SUBMENU:=$(MMEDIA_MENU)
+  TITLE:=DVB USB v2 support
+  KCONFIG:=CONFIG_DVB_USB_V2
+  DEPENDS:=kmod-dvb-core @USB_SUPPORT +kmod-usb-core
+  FILES:=$(LINUX_DIR)/drivers/media/usb/dvb-usb-v2/dvb_usb_v2.ko
+  AUTOLOAD:=$(call AutoLoad,82,dvb_usb_v2)
+endef
+define KernelPackage/dvb-usb-v2/description
+  Kernel module for DVB USB v2 support
+endef
+$(eval $(call KernelPackage,dvb-usb-v2))
+
+define KernelPackage/dvb-tuner-r820t
+  SUBMENU:=$(MMEDIA_MENU)
+  TITLE:=DVB Tuner Rafael Micro R820T
+  KCONFIG:=CONFIG_MEDIA_TUNER_R820T
+  DEPENDS:=kmod-dvb-usb-v2
+  FILES:=$(LINUX_DIR)/drivers/media/tuners/r820t.ko
+  AUTOLOAD:=$(call AutoLoad,83,r820t)
+endef
+define KernelPackage/dvb-tuner-r820t/description
+  Kernel module for Rafael Micro R820T tuner
+endef
+$(eval $(call KernelPackage,dvb-tuner-r820t))
+
+define KernelPackage/dvb-frontend-mn88472
+  SUBMENU:=$(MMEDIA_MENU)
+  TITLE:=DVB-T Panasonic MN88472 (no firmware)
+  KCONFIG:=CONFIG_DVB_MN88472
+  DEPENDS:=kmod-dvb-usb-v2 +kmod-regmap-i2c
+  FILES:=$(LINUX_DIR)/drivers/media/dvb-frontends/mn88472.ko
+  AUTOLOAD:=$(call AutoLoad,84,mn88472)
+endef
+define KernelPackage/dvb-frontend-mn88472/description
+  Kernel module for Panasonic MN88472 DVB-T/T2/C frontend
+
+  This chip requires firmware! It is not included due to missing license.
+  Firmware file: dvb-demod-mn88472-02.fw
+  Install in: /lib/firmware
+endef
+$(eval $(call KernelPackage,dvb-frontend-mn88472))
+
+define KernelPackage/dvb-frontend-mn88473
+  SUBMENU:=$(MMEDIA_MENU)
+  TITLE:=DVB-T Panasonic MN88473 (no firmware)
+  KCONFIG:=CONFIG_DVB_MN88473
+  DEPENDS:=kmod-dvb-usb-v2 +kmod-regmap-i2c
+  FILES:=$(LINUX_DIR)/drivers/media/dvb-frontends/mn88473.ko
+  AUTOLOAD:=$(call AutoLoad,84,mn88473)
+endef
+define KernelPackage/dvb-frontend-mn88473/description
+  Kernel module for Panasonic MN88473 DVB-T/T2/C frontend
+
+  This chip requires firmware! It is not included due to missing license.
+  Firmware file: dvb-demod-mn88473-01.fw
+  Install in: /lib/firmware
+endef
+$(eval $(call KernelPackage,dvb-frontend-mn88473))
+
+define KernelPackage/dvb-frontend-cxd2841er
+  SUBMENU:=$(MMEDIA_MENU)
+  TITLE:=DVB-C Sony CXD2841ER
+  KCONFIG:=CONFIG_DVB_CXD2841ER
+  DEPENDS:=kmod-dvb-usb-v2
+  FILES:=$(LINUX_DIR)/drivers/media/dvb-frontends/cxd2841er.ko
+  AUTOLOAD:=$(call AutoLoad,84,cxd2841er)
+endef
+define KernelPackage/dvb-frontend-cxd2841er/description
+  Kernel module for Sony CXD2841ER DVB-C frontend
+endef
+$(eval $(call KernelPackage,dvb-frontend-cxd2841er))
+
+define KernelPackage/dvb-usb-rtl28xx
+  SUBMENU:=$(MMEDIA_MENU)
+  TITLE:=DVB USB Realtek RTL28xx
+  KCONFIG:= \
+    CONFIG_DVB_USB_RTL28XXU \
+    CONFIG_DVB_RTL2830 \
+    CONFIG_DVB_RTL2832
+  DEPENDS:=kmod-dvb-usb-v2 +kmod-regmap-i2c +kmod-i2c-mux
+  FILES:= \
+    $(LINUX_DIR)/drivers/media/usb/dvb-usb-v2/dvb-usb-rtl28xxu.ko \
+    $(LINUX_DIR)/drivers/media/dvb-frontends/rtl2830.ko \
+    $(LINUX_DIR)/drivers/media/dvb-frontends/rtl2832.ko
+  AUTOLOAD:=$(call AutoLoad,84,rtl2830)
+  AUTOLOAD:=$(call AutoLoad,84,rtl2832)
+  AUTOLOAD:=$(call AutoLoad,89,dvb-usb-rtl28xxu)
+# rtl28xxu must load after these frontends: MN88472, MN88473, CXD2841ER, RTL2830, RTL2832, R820T, and others not yet added in OpenWrt (see dependencies in kernel_menuconfig help for this module)
+endef
+define KernelPackage/dvb-usb-rtl28xx/description
+  Kernel modules for RTL28xxU USB DVB demod and RTL2830 & RTL2832 DVB-T frontends
+endef
+$(eval $(call KernelPackage,dvb-usb-rtl28xx))

package/kernel/linux/modules/usb.mk

@@ -574,6 +574,7 @@ define KernelPackage/usb-audio
   KCONFIG:= \
 	CONFIG_SND_USB=y \
 	CONFIG_SND_USB_AUDIO
+  DEPENDS:=+PACKAGE_kmod-multimedia:kmod-multimedia
   $(call AddDepends/usb)
   $(call AddDepends/sound)
   FILES:= \

target/linux/generic/config-6.6

@@ -1653,6 +1653,7 @@ CONFIG_DUMMY_CONSOLE_ROWS=25
 # CONFIG_DVB_B2C2_FLEXCOP_PCI is not set
 # CONFIG_DVB_B2C2_FLEXCOP_USB is not set
 # CONFIG_DVB_BCM3510 is not set
+# CONFIG_DVB_BUDGET_CORE is not set
 # CONFIG_DVB_CORE is not set
 # CONFIG_DVB_CX22700 is not set
 # CONFIG_DVB_CX22702 is not set
@@ -1773,7 +1774,20 @@ CONFIG_DVB_MAX_ADAPTERS=16
 # CONFIG_DVB_TUNER_ITD1000 is not set
 # CONFIG_DVB_ULE_DEBUG is not set
 # CONFIG_DVB_USB is not set
+# CONFIG_DVB_USB_AF9015 is not set
+# CONFIG_DVB_USB_AF9035 is not set
+# CONFIG_DVB_USB_ANYSEE is not set
+# CONFIG_DVB_USB_AU6610 is not set
+# CONFIG_DVB_USB_AZ6007 is not set
+# CONFIG_DVB_USB_CE6230 is not set
+# CONFIG_DVB_USB_DVBSKY is not set
+# CONFIG_DVB_USB_EC168 is not set
+# CONFIG_DVB_USB_GL861 is not set
+# CONFIG_DVB_USB_LME2510 is not set
+# CONFIG_DVB_USB_MXL111SF is not set
+# CONFIG_DVB_USB_RTL28XXU is not set
 # CONFIG_DVB_USB_V2 is not set
+# CONFIG_DVB_USB_ZD1301 is not set
 # CONFIG_DVB_VES1820 is not set
 # CONFIG_DVB_VES1X93 is not set
 # CONFIG_DVB_ZD1301_DEMOD is not set
@@ -7331,6 +7345,9 @@ CONFIG_VHOST_MENU=y
 # CONFIG_VIDEO_UPD64031A is not set
 # CONFIG_VIDEO_UPD64083 is not set
 # CONFIG_VIDEO_USBTV is not set
+# CONFIG_VIDEO_USBVISION is not set
+# CONFIG_VIDEO_V4L2 is not set
+# CONFIG_VIDEO_V4L2_SUBDEV_API is not set
 # CONFIG_VIDEO_VP27SMPX is not set
 # CONFIG_VIDEO_VPX3220 is not set
 # CONFIG_VIDEO_WM8739 is not set