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# ====================================================================
#
#      adc_synth.cdl
#
#      eCos Synthetic ADC configuration data
#
# ====================================================================
## ####ECOSGPLCOPYRIGHTBEGIN####                                            
## -------------------------------------------                              
## This file is part of eCos, the Embedded Configurable Operating System.   
## Copyright (C) 2009 Free Software Foundation, Inc.                        
##
## eCos is free software; you can redistribute it and/or modify it under    
## the terms of the GNU General Public License as published by the Free     
## Software Foundation; either version 2 or (at your option) any later      
## version.                                                                 
##
## eCos is distributed in the hope that it will be useful, but WITHOUT      
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## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
## for more details.                                                        
##
## You should have received a copy of the GNU General Public License        
## along with eCos; if not, write to the Free Software Foundation, Inc.,    
## 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
##
## As a special exception, if other files instantiate templates or use      
## macros or inline functions from this file, or you compile this file      
## and link it with other works to produce a work based on this file,       
## this file does not by itself cause the resulting work to be covered by   
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## must still be made available in accordance with section (3) of the GNU   
## General Public License v2.                                               
##
## This exception does not invalidate any other reasons why a work based    
## on this file might be covered by the GNU General Public License.         
## -------------------------------------------                              
## ####ECOSGPLCOPYRIGHTEND####                                              
# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      Simon Kallweit <simon.kallweit@intefo.ch>
# 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
            }
        }
    }
}