i2c.cdl

开放源码实时操作系统源码.

# ====================================================================
#
#      i2c.cdl
#
#      Generic I2C package configuration data
#
# ====================================================================
#####ECOSGPLCOPYRIGHTBEGIN####
## -------------------------------------------
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## Copyright (C) 2004 eCosCentric Limited
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# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):     bartv
# Date:          2004-10-05
#
#####DESCRIPTIONEND####
#========================================================================

cdl_package CYGPKG_IO_I2C {
    display		"I2C support"
    requires		CYGPKG_INFRA CYGPKG_HAL
    hardware
    include_dir		cyg/io
    compile		i2c.cxx
    
    description "
        The generic I2C package provides an API for accessing devices
        attached to an I2C bus. It specifies how I2C bus drivers should
        be written and how I2C devices should be defined. There is also
        support for bit-banged I2C buses."

    cdl_option CYGNUM_I2C_INIT_PRIORITY {
	display		"I2C initialization priority"
	flavor		data
	default_value	{ "CYG_INIT_DRIVERS" }

	description "
            The generic I2C package will initialize each I2C bus during
            system startup, using a prioritized static constructor. This
            option controls the priority that is used. The default value,
            CYG_INIT_DRIVERS, means that I2C buses get initialized early
            on."
    }

    cdl_component CYGPKG_IO_I2C_OPTIONS {
        display "I2C build options"
        flavor  none
        description   "
	    Package specific build options including control over
	    compiler flags used only in building the generic I2C
            package, and details of which tests are built."

        cdl_option CYGPKG_IO_I2C_CFLAGS_ADD {
            display "Additional compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the generic I2C package. These flags are
                used in addition to the set of global flags."
        }

        cdl_option CYGPKG_IO_I2C_CFLAGS_REMOVE {
            display "Suppressed compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the generic I2C package. These flags are
                removed from the set of global flags if present."
        }
    }
}