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# ====================================================================

#

#      wallclock.cdl

#

#      eCos wallclock configuration data

#

# ====================================================================

#####ECOSGPLCOPYRIGHTBEGIN####

## -------------------------------------------

## This file is part of eCos, the Embedded Configurable Operating System.

## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

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## or inline functions from this file, or you compile this file and link it

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#####ECOSGPLCOPYRIGHTEND####

# ====================================================================

######DESCRIPTIONBEGIN####

#

# Author(s):      jskov

# Original data:  nickg

# Contributors:

# Date:           1999-07-13

#

#####DESCRIPTIONEND####

#

# ====================================================================

cdl_package CYGPKG_IO_WALLCLOCK {

    display       "Wallclock device"

    include_dir   cyg/io

    define_header wallclock.h

    description   "

        The wallclock device provides real time stamps, as opposed

        to the eCos kernel timers which typically just count the

        number of clock ticks since the hardware was powered up.

        Depending on the target platform this device may involve

        interacting with a suitable clock chip, or it may be

        emulated by using the kernel timers."

    compile       wallclock.cxx

    cdl_interface CYGINT_WALLCLOCK_HW_IMPLEMENTATIONS {

        display       "Number of wallclock hardware implementations"

        no_define

    }

    cdl_interface CYGINT_WALLCLOCK_IMPLEMENTATIONS {

        display       "Number of wallclock implementations"

        no_define

        requires      1 == CYGINT_WALLCLOCK_IMPLEMENTATIONS

    }

    cdl_interface CYGINT_WALLCLOCK_SET_GET_MODE_SUPPORTED {

        display       "Wallclock driver supports set/get mode"

        no_define

    }

    cdl_option CYGSEM_WALLCLOCK_MODE {

        display       "Wallclock mode"

        flavor        data

        legal_values  { "init_get" "set_get" }

        default_value { CYGINT_WALLCLOCK_SET_GET_MODE_SUPPORTED ? \

                        "set_get" : "init_get" }

        requires      { CYGINT_WALLCLOCK_SET_GET_MODE_SUPPORTED || \

                        CYGSEM_WALLCLOCK_MODE == "init_get" }

        no_define

        description   "

            The wallclock driver can be used in one of two

            modes. Set/get mode allows time to be kept during power

            off (assuming there's a battery backed clock). Init/get

            mode is slightly smaller and can be used when there is no

            battery backed clock - in this mode time 0 is the time of

            the board power up."

    }

    cdl_option CYGSEM_WALLCLOCK_SET_GET_MODE {

        display     "Wallclock set/get mode"

        calculated  { CYGSEM_WALLCLOCK_MODE == "set_get" ? 1 : 0 }

    }

    cdl_component CYGPKG_IO_WALLCLOCK_IMPLEMENTATION {

        display "Wallclock implementation"

        flavor none

        no_define

        description "Implementations of the wallclock device."

        cdl_option CYGPKG_WALLCLOCK_EMULATE {

            default_value { 0 == CYGINT_WALLCLOCK_HW_IMPLEMENTATIONS }

            display       "Wallclock emulator"

            implements    CYGINT_WALLCLOCK_IMPLEMENTATIONS

            compile       emulate.cxx

            requires      CYGPKG_KERNEL

            define_proc {

                puts $::cdl_header "#undef CYGSEM_WALLCLOCK_SET_GET_MODE"

            }

            description   "

                When this option is enabled, a wallclock device will be

                emulated using the kernel real-time clock."

        }

        cdl_option CYGIMP_WALLCLOCK_NONE {

            display       "No wallclock"

            default_value { !CYGPKG_KERNEL && 0 == CYGINT_WALLCLOCK_HW_IMPLEMENTATIONS }

            implements    CYGINT_WALLCLOCK_IMPLEMENTATIONS

            description   "Disables the wallclock."

        }

    }

    cdl_component CYGPKG_IO_WALLCLOCK_OPTIONS {

        display "Wallclock build options"

        flavor  none

        description   "

            Package specific build options including control over

            compiler flags used only in building this package,

            and details of which tests are built."

        cdl_option CYGPKG_IO_WALLCLOCK_CFLAGS_ADD {

            display "Additional compiler flags"

            flavor  data

            no_define

            default_value { "" }

            description   "

                This option modifies the set of compiler flags for

                building the wallclock device. These flags are used in addition

                to the set of global flags."

        }

        cdl_option CYGPKG_IO_WALLCLOCK_CFLAGS_REMOVE {

            display "Suppressed compiler flags"

            flavor  data

            no_define

            default_value { "" }

            description   "

                This option modifies the set of compiler flags for

                building the wallclock device. These flags are removed from

                the set of global flags if present."

        }

        cdl_option CYGPKG_IO_WALLCLOCK_TESTS {

            display "Wallclock tests"

            flavor  data

            no_define

            calculated { CYGPKG_KERNEL ? "tests/wallclock tests/wallclock2" : "" }

            description   "

                This option specifies the set of tests for the

                wallclock device."

        }

    }

}