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

#

#      adc_synth.cdl

#

#      eCos Synthetic ADC configuration data

#

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

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

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

## Copyright (C) 2009 Free Software Foundation, Inc.

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## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

## for more details.

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##

## As a special exception, if other files instantiate templates or use

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

######DESCRIPTIONBEGIN####

#

# Author(s):      Simon Kallweit 

# Contributors:

# Date:           2009-02-27

#

#####DESCRIPTIONEND####

#

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

cdl_package CYGPKG_DEVS_ADC_SYNTH {

    display     "Synthetic ADC device driver"

    parent      CYGPKG_IO_ADC_DEVICES

    active_if   CYGPKG_IO_ADC_DEVICES

    active_if   CYGPKG_HAL_SYNTH

    requires    {CYGNUM_IO_ADC_SAMPLE_SIZE >= CYGNUM_DEVS_ADC_SYNTH_SAMPLE_SIZE}

    description "

        This option enables the ADC device drivers for Synthetic target."

    include_dir cyg/io

    compile     -library=libextras.a adc_synth.c

    cdl_interface CYGINT_DEVS_ADC_SYNTH_CHANNELS {

        display         "Number of ADC channels"

    }

    cdl_option CYGNUM_DEVS_ADC_SYNTH_SAMPLE_SIZE {

        display         "Sample size"

        flavor          data

        legal_values    1 to 32

        default_value   16

        description     "

            Sample size provided by the ADC channels."

    }

    cdl_option CYGNUM_DEVS_ADC_SYNTH_DEFAULT_RATE {

        display         "Default sample rate"

        flavor          data

        legal_values    1 to 10000

        default_value   100

        description     "

            The driver will be initialized with the default sample rate.

            If you raise the default sample rate you might need to increase

            the buffer size for each channel."

    }

    # Support 16 channels

    for { set ::channel 0 } { $::channel < 16 } { incr ::channel } {

        cdl_component CYGHWR_DEVS_ADC_SYNTH_CHANNEL[set ::channel] {

            display         "ADC channel [set ::channel]"

            flavor          none

            implements      CYGINT_DEVS_ADC_SYNTH_CHANNELS

            description     "

                If the application needs to access the ADC

                channel [set ::channel] via an eCos ADC driver then

                this option should be enabled."

            cdl_option CYGDAT_DEVS_ADC_SYNTH_CHANNEL[set ::channel]_NAME {

                display         "Device name"

                flavor          data

                default_value   [format {"\"/dev/adc0%d\""} $::channel]

                description     "

                    This option controls the name that an eCos application

                    should use to access this device via cyg_io_lookup(),

                    open(), or similar calls."

            }

            cdl_option CYGNUM_DEVS_ADC_SYNTH_CHANNEL[set ::channel]_BUFSIZE {

                display         "Size of data buffer"

                flavor          data

                legal_values    1 to 65536

                default_value   128

                description     "

                    This option controls the number of samples the

                    buffer can store. The required RAM is = size of

                    data buffer * size of sample."

            }

            cdl_option CYGDAT_DEVS_ADC_SYNTH_CHANNEL[set ::channel]_SOURCE {

                display         "Channel source"

                flavor          data

                legal_values    { "CONST" "RANDOM" "FILE" }

                default_value   { "CONST" }

                description     "

                    This option controls the sample source of the virtual ADC

                    channel. CONST mode always returns a constant sample value.

                    RANDOM mode returns random samples. FILE returns samples as

                    read by a file on the host."

            }

            cdl_option CYGNUM_DEVS_ADC_SYNTH_CHANNEL[set ::channel]_CONST_VALUE {

                display         "Constant sample value"

                flavor          data

                default_value   0

                description     "

                    Constant sample value returned when CONST mode is selected."

            }

            cdl_option CYGDAT_DEVS_ADC_SYNTH_CHANNEL[set ::channel]_FILENAME {

                display         "Sample data filename"

                flavor          data

                default_value   [format {"\"adc0%d\""} $::channel]

                description     "

                    Filename of sample data file used in FILE mode."

            }

            cdl_option CYGNUM_DEVS_ADC_SYNTH_CHANNEL[set ::channel]_MODE {

                display         "Channel mode"

                flavor          data

                calculated      CYGDAT_DEVS_ADC_SYNTH_CHANNEL[set ::channel]_SOURCE == { "CONST" } ? 0 : \

                                CYGDAT_DEVS_ADC_SYNTH_CHANNEL[set ::channel]_SOURCE == { "RANDOM" } ? 1 : \

                                CYGDAT_DEVS_ADC_SYNTH_CHANNEL[set ::channel]_SOURCE == { "FILE" } ? 2 : -1

            }

        }

    }

}