1# SPDX-License-Identifier: GPL-2.0 2menuconfig BCM_VIDEOCORE 3 tristate "Broadcom VideoCore support" 4 depends on OF 5 depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 6 default y 7 help 8 Support for Broadcom VideoCore services including 9 the BCM2835 family of products which is used 10 by the Raspberry PI. 11 12if BCM_VIDEOCORE 13 14config BCM2835_VCHIQ 15 tristate "BCM2835 VCHIQ" 16 depends on HAS_DMA 17 imply VCHIQ_CDEV 18 help 19 Broadcom BCM2835 and similar SoCs have a VPU called VideoCore. This config 20 enables the VCHIQ driver, which implements a messaging interface between 21 the kernel and the firmware running on VideoCore. Other drivers use this 22 interface to communicate to the VPU. More specifically, the VCHIQ driver is 23 used by audio/video and camera drivers as well as for implementing MMAL 24 API, which is in turn used by several multimedia services on the BCM2835 25 family of SoCs. 26 Defaults to Y when the Broadcom Videocore services are included in 27 the build, N otherwise. 28 29if BCM2835_VCHIQ 30 31config VCHIQ_CDEV 32 bool "VCHIQ Character Driver" 33 help 34 Enable the creation of VCHIQ character driver. The cdev exposes ioctls used 35 by userspace libraries and testing tools to interact with VideoCore, via 36 the VCHIQ core driver (Check BCM2835_VCHIQ for more info). 37 This can be set to 'N' if the VideoCore communication is not needed by 38 userspace but only by other kernel modules (like bcm2835-audio). If not 39 sure, set this to 'Y'. 40 41endif 42 43source "drivers/staging/vc04_services/bcm2835-audio/Kconfig" 44 45source "drivers/staging/vc04_services/bcm2835-camera/Kconfig" 46 47source "drivers/staging/vc04_services/vchiq-mmal/Kconfig" 48 49endif 50 51