Add media token device resource framework to allow sharing resources such as tuner, dma, audio etc. across media drivers and non-media sound drivers that control media hardware. The Media token resource is created at the main struct device that is common to all drivers that claim various pieces of the main media device, which allows them to find the resource using the main struct device. As an example, digital, analog, and snd-usb-audio drivers can use the media token resource API using the main struct device for the interface the media device is attached to. This patch series consists of media token resource framework and changes to use it in dvb-core, v4l2-core, and au0828 driver. With these changes dvb and v4l2 can share the tuner without disrupting each other. Used tvtime, xawtv, kaffeine, and vlc to during development to identify v4l2 vb2 and vb1 ioctls and file operations that disrupt the digital stream and would require changes to check tuner ownership prior to changing the tuner configuration. vb2 changes are made in the v4l2-core and vb1 changes are made in the au0828 driver to encourage porting drivers to vb2 to advantage of the new media token resource framework with changes in the core. Shuah Khan (5): media: add media token device resource framework media: v4l2-core changes to use media tuner token api media: au0828-video changes to use media tuner token api media: dvb-core changes to use media tuner token api media: au0828-core changes to create and destroy media token res MAINTAINERS | 2 + drivers/media/dvb-core/dvb_frontend.c | 10 + drivers/media/usb/au0828/au0828-core.c | 23 ++ drivers/media/usb/au0828/au0828-video.c | 43 +++- drivers/media/v4l2-core/v4l2-fh.c | 16 ++ drivers/media/v4l2-core/v4l2-ioctl.c | 96 +++++++- include/linux/media_tknres.h | 98 +++++++++ lib/Makefile | 2 + lib/media_tknres.c | 361 +++++++++++++++++++++++++++++++ 9 files changed, 648 insertions(+), 3 deletions(-) create mode 100644 include/linux/media_tknres.h create mode 100644 lib/media_tknres.c -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
