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d53022a424
This patch should bring support for several kernel modules related to I2C to openwrt, which are existing for several years now. Namely there is the i2c-tiny-usb bus driver, to hook up an I2C bus on any device with usb support (prevent voiding warranty when opening and soldering). Second, there is support for the i2c-mux driver and pca954x as a I2C switch driver. Finally there is support for common I2C gpio expander driver modules pca953x and pcf857x. They work without providing platform data recently (can be instantiated at runtime). Signed-off-by: Hartmut Knaack <knaack.h@gmx.de> SVN-Revision: 28334
309 lines
7.9 KiB
Makefile
309 lines
7.9 KiB
Makefile
#
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# Copyright (C) 2006-2009 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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I2C_MENU:=I2C support
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ModuleConfVar=$(word 1,$(subst :,$(space),$(1)))
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ModuleFullPath=$(if $(findstring y,$($(call ModuleConfVar,$(1)))),,$(LINUX_DIR)/$(word 2,$(subst :,$(space),$(1))).ko)
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ModuleKconfig=$(foreach mod,$(1),$(call ModuleConfVar,$(mod)))
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ModuleFiles=$(foreach mod,$(1),$(call ModuleFullPath,$(mod)))
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ModuleAuto=$(call AutoLoad,$(1),$(foreach mod,$(2),$(basename $(notdir $(call ModuleFullPath,$(mod))))),$(3))
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define i2c_defaults
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SUBMENU:=$(I2C_MENU)
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KCONFIG:=$(call ModuleKconfig,$(1))
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FILES:=$(call ModuleFiles,$(1))
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AUTOLOAD:=$(call ModuleAuto,$(2),$(1),$(3))
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endef
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I2C_CORE_MODULES:= \
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CONFIG_I2C:drivers/i2c/i2c-core \
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CONFIG_I2C_CHARDEV:drivers/i2c/i2c-dev
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define KernelPackage/i2c-core
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$(call i2c_defaults,$(I2C_CORE_MODULES),51)
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TITLE:=I2C support
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DEPENDS:=@!TARGET_etrax
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endef
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define KernelPackage/i2c-core/description
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Kernel modules for I2C support
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endef
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$(eval $(call KernelPackage,i2c-core))
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I2C_ALGOBIT_MODULES:= \
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CONFIG_I2C_ALGOBIT:drivers/i2c/algos/i2c-algo-bit
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define KernelPackage/i2c-algo-bit
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$(call i2c_defaults,$(I2C_ALGOBIT_MODULES),55)
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TITLE:=I2C bit-banging interfaces
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DEPENDS:=kmod-i2c-core
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endef
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define KernelPackage/i2c-algo-bit/description
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Kernel modules for I2C bit-banging interfaces.
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endef
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$(eval $(call KernelPackage,i2c-algo-bit))
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I2C_ALGOPCA_MODULES:= \
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CONFIG_I2C_ALGOPCA:drivers/i2c/algos/i2c-algo-pca
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define KernelPackage/i2c-algo-pca
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$(call i2c_defaults,$(I2C_ALGOPCA_MODULES),55)
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TITLE:=I2C PCA 9564 interfaces
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DEPENDS:=kmod-i2c-core
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endef
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define KernelPackage/i2c-algo-pca/description
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Kernel modules for I2C PCA 9564 interfaces.
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endef
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$(eval $(call KernelPackage,i2c-algo-pca))
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I2C_ALGOPCF_MODULES:= \
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CONFIG_I2C_ALGOPCF:drivers/i2c/algos/i2c-algo-pcf
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define KernelPackage/i2c-algo-pcf
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$(call i2c_defaults,$(I2C_ALGOPCF_MODULES),55)
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TITLE:=I2C PCF 8584 interfaces
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DEPENDS:=kmod-i2c-core
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endef
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define KernelPackage/i2c-algo-pcf/description
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Kernel modules for I2C PCF 8584 interfaces
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endef
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$(eval $(call KernelPackage,i2c-algo-pcf))
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I2C_GPIO_MODULES:= \
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CONFIG_I2C_GPIO:drivers/i2c/busses/i2c-gpio
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define KernelPackage/i2c-gpio
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$(call i2c_defaults,$(I2C_GPIO_MODULES),59)
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TITLE:=GPIO-based bitbanging I2C
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DEPENDS:=@GPIO_SUPPORT +kmod-i2c-algo-bit
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endef
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define KernelPackage/i2c-gpio/description
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Kernel modules for a very simple bitbanging I2C driver utilizing the
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arch-neutral GPIO API to control the SCL and SDA lines.
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endef
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$(eval $(call KernelPackage,i2c-gpio))
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I2C_SCX200_MODULES:=\
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CONFIG_SCx200_I2C:drivers/i2c/busses/scx200_i2c
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define KernelPackage/i2c-scx200
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$(call i2c_defaults,$(I2C_SCX200_MODULES),59)
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TITLE:=Geode SCx200 I2C using GPIO pins
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DEPENDS:=@PCI_SUPPORT @TARGET_x86 +kmod-i2c-algo-bit
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KCONFIG+= \
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CONFIG_SCx200_I2C_SCL=12 \
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CONFIG_SCx200_I2C_SDA=13
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endef
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define KernelPackage/i2c-scx200/description
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Kernel module for I2C using GPIO pins on the Geode SCx200 processors.
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endef
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$(eval $(call KernelPackage,i2c-scx200))
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I2C_SCX200_ACB_MODULES:=\
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CONFIG_SCx200_ACB:drivers/i2c/busses/scx200_acb
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define KernelPackage/i2c-scx200-acb
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$(call i2c_defaults,$(I2C_SCX200_ACB_MODULES),59)
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TITLE:=Geode SCx200 ACCESS.bus support
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DEPENDS:=@PCI_SUPPORT @TARGET_x86 +kmod-i2c-algo-bit
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endef
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define KernelPackage/i2c-scx200-acb/description
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Kernel module for I2C using the ACCESS.bus controllers on the Geode SCx200
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and SC1100 processors and the CS5535 and CS5536 Geode companion devices.
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endef
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$(eval $(call KernelPackage,i2c-scx200-acb))
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OF_I2C_MODULES:=\
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CONFIG_OF_I2C:drivers/of/of_i2c
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define KernelPackage/of-i2c
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$(call i2c_defaults,$(OF_I2C_MODULES),58)
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TITLE:=OpenFirmware I2C accessors
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DEPENDS:=@TARGET_ppc40x||TARGET_ppc4xx kmod-i2c-core
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endef
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define KernelPackage/of-i2c/description
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Kernel module for OpenFirmware I2C accessors.
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endef
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$(eval $(call KernelPackage,of-i2c))
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I2C_IBM_IIC_MODULES:=\
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CONFIG_I2C_IBM_IIC:drivers/i2c/busses/i2c-ibm_iic
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define KernelPackage/i2c-ibm-iic
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$(call i2c_defaults,$(OF_I2C_MODULES),59)
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TITLE:=IBM PPC 4xx on-chip I2C interface support
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DEPENDS:=@TARGET_ppc40x||TARGET_ppc4xx +kmod-i2c-core +kmod-of-i2c
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endef
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define KernelPackage/i2c-ibm-iic/description
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Kernel module for IIC peripheral found on embedded IBM PPC4xx based systems.
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endef
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$(eval $(call KernelPackage,i2c-ibm-iic))
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I2C_MV64XXX_MODULES:=\
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CONFIG_I2C_MV64XXX:drivers/i2c/busses/i2c-mv64xxx
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define KernelPackage/i2c-mv64xxx
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$(call i2c_defaults,$(I2C_MV64XXX_MODULES),59)
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TITLE:=Orion Platform I2C interface support
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DEPENDS:=@TARGET_kirkwood||TARGET_orion +kmod-i2c-core
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endef
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define KernelPackage/i2c-mv64xxx/description
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Kernel module for I2C interface on the Kirkwood and Orion
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family processors.
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endef
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$(eval $(call KernelPackage,i2c-mv64xxx))
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I2C_AT91_MODULES:=\
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CONFIG_I2C_AT91:drivers/i2c/busses/i2c-at91
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define KernelPackage/at91-i2c
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$(call i2c_defaults,$(I2C_AT91_MODULES),55)
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TITLE:=I2C (TWI) master driver for Atmel AT91
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DEPENDS:=@TARGET_at91 +kmod-i2c-core
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endef
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define KernelPackage/at91-i2c/description
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Kernel module to use the I2C (TWI) master driver for Atmel AT91
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endef
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$(eval $(call KernelPackage,at91-i2c))
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I2C_OCTEON_MODULES:=\
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CONFIG_I2C_OCTEON:drivers/i2c/busses/i2c-octeon
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define KernelPackage/octeon-i2c
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$(call i2c_defaults,$(I2C_OCTEON_MODULES),59)
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TITLE:=I2C master driver for Cavium Octeon
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DEPENDS:=@TARGET_octeon +kmod-i2c-core
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endef
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define KernelPackage/octeon-i2c/description
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Kernel module to use the I2C master driver on Cavium Octeon
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endef
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I2C_TINY_USB_MODULES:= \
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CONFIG_I2C_TINY_USB:drivers/i2c/busses/i2c-tiny-usb
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define KernelPackage/i2c-tiny-usb
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$(call i2c_defaults,$(I2C_TINY_USB_MODULES),59)
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TITLE:=I2C Tiny USB adaptor
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DEPENDS:=@USB_SUPPORT kmod-i2c-core
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endef
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define KernelPackage/i2c-tiny-usb/description
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Kernel module for the I2C Tiny USB adaptor developed
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by Till Harbaum (http://www.harbaum.org/till/i2c_tiny_usb).
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endef
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$(eval $(call KernelPackage,i2c-tiny-usb))
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I2C_MUX_MODULES:= \
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CONFIG_I2C_MUX:drivers/i2c/i2c-mux
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define KernelPackage/i2c-mux
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$(call i2c_defaults,$(I2C_MUX_MODULES),51)
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TITLE:=I2C bus multiplexing support
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DEPENDS:=kmod-i2c-core
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endef
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define KernelPackage/i2c-mux/description
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Kernel modules for I2C bus multiplexing support.
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endef
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$(eval $(call KernelPackage,i2c-mux))
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I2C_MUX_PCA954x_MODULES:= \
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CONFIG_I2C_MUX_PCA954x:drivers/i2c/muxes/pca954x
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define KernelPackage/i2c-mux-pca954x
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$(call i2c_defaults,$(I2C_MUX_PCA954x_MODULES),51)
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TITLE:=Philips PCA954x I2C mux/switches
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DEPENDS:=kmod-i2c-mux
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endef
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define KernelPackage/i2c-mux-pca954x/description
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Kernel modules for PCA954x I2C bus mux/switching devices.
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endef
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$(eval $(call KernelPackage,i2c-mux-pca954x))
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## Support for pca954x seems to be in kernel since 2.6.36
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I2C_MUX_PCA9541_MODULES:= \
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CONFIG_I2C_MUX_PCA9541:drivers/i2c/muxes/pca9541
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define KernelPackage/i2c-mux-pca9541
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$(call i2c_defaults,$(I2C_MUX_PCA9541_MODULES),51)
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TITLE:=Philips PCA9541 I2C mux/switches
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DEPENDS:=kmod-i2c-mux
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endef
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define KernelPackage/i2c-mux-pca9541/description
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Kernel modules for PCA9541 I2C bus mux/switching devices.
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endef
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$(eval $(call KernelPackage,i2c-mux-pca9541))
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GPIO_PCA953X_MODULES:= \
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CONFIG_GPIO_PCA953X:drivers/gpio/pca953x
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define KernelPackage/pca953x
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$(call i2c_defaults,$(GPIO_PCA953X_MODULES),51)
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TITLE:=Philips PCA953x I2C GPIO extenders
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DEPENDS:=kmod-i2c-core
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endef
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define KernelPackage/pca953x/description
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Kernel modules for PCA953x I2C GPIO extenders.
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endef
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$(eval $(call KernelPackage,pca953x))
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GPIO_PCF857X_MODULES:= \
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CONFIG_GPIO_PCF857X:drivers/gpio/pcf857x
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define KernelPackage/pcf857x
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$(call i2c_defaults,$(GPIO_PCF857X_MODULES),51)
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TITLE:=Philips PCF857x I2C GPIO extenders
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DEPENDS:=kmod-i2c-core
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endef
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define KernelPackage/pcf857x/description
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Kernel modules for PCF857x I2C GPIO extenders.
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endef
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$(eval $(call KernelPackage,pcf857x))
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$(eval $(call KernelPackage,octeon-i2c))
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