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# ====================================================================
#
#      adc_lpc24xx.cdl
#
#      eCos LPC24xx ADC configuration data
#
# ====================================================================
## ####ECOSGPLCOPYRIGHTBEGIN####                                            
## -------------------------------------------                              
## This file is part of eCos, the Embedded Configurable Operating System.   
## Copyright (C) 2008 Free Software Foundation, Inc.                        
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## for more details.                                                        
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# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      Uwe Kindler <uwe_kindler@web.de>
# Contributors:   
# Date:           2008-09-24
#
#####DESCRIPTIONEND####
#
# ====================================================================


cdl_package CYGPKG_DEVS_ADC_ARM_LPC24XX {
    display     "ADC hardware device driver for LPC24xx family of ARM controllers"
    
    parent      CYGPKG_IO_ADC_DEVICES
    active_if   CYGPKG_IO_ADC_DEVICES
    active_if   CYGPKG_HAL_ARM_LPC24XX
    requires    {CYGNUM_IO_ADC_SAMPLE_SIZE <= 10}
    requires    {CYGNUM_IO_ADC_SAMPLE_SIZE >= 3}
    description " 
           This package provides a generic ADC device driver for the on-chip
           ADC peripherals in LPX24xx processors."
           
    include_dir cyg/io
    compile     -library=libextras.a adc_lpc24xx.c
    
    cdl_interface CYGINT_DEVS_ADC_ARM_LPC24XX_CHANNELS {
        display "Number of ADC channels"
    }  
   
    cdl_option CYGPKG_DEVS_ADC_ARM_LPC24XX_DEBUG_LEVEL {
         display "Driver debug output level"
         flavor  data
         legal_values {0 1 2}
         default_value 0
         description   "
             This option specifies the level of debug data output by
             the LPC24XX ADC device driver. A value of 0 signifies
             no debug data output; 1 signifies normal debug data
             output. If an overrun occurred then this can only be
             detected by debug output messages."         
    }
    
    cdl_option CYGNUM_DEVS_ADC_ARM_LPC24XX_INTPRIO {
        display       "Interrupt priority"
        flavor        data
        legal_values  0 to 15
        default_value 15
        description   "
            This option selects the interrupt priority for the ADC
            interrupts.  Timer 1 is used for generating the sample
            clock. So this option configures the interrupt priority
            for timer 1. There are 16 priority levels corresponding to
            the values 0 through 15 decimal, of which 15 is the lowest
            priority. The reset value of these registers defaults all
            interrupts to the lowest priority, allowing a single write
            to elevate the priority of an individual interrupt."
    }

      
    cdl_option CYGNUM_DEVS_ADC_ARM_LPC24XX_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 up to 8 ADC channels
    for { set ::channel 0 } { $::channel < 8 } { incr ::channel } {  
    
        cdl_component CYGPKG_DEVS_ADC_ARM_LPC24XX_CHANNEL[set ::channel] {
            display        "Access ADC channel [set ::channel]"
            flavor          bool
            default_value   [set ::channel] == 0
            implements      CYGINT_DEVS_ADC_ARM_LPC24XX_CHANNELS
            description "
                If the application needs to access the on-chip ADC
                channel [set ::channel] via an eCos ADC driver then
                this option should be enabled."
     
            cdl_option CYGDAT_DEVS_ADC_ARM_LPC24XX_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 CYGDAT_DEVS_ADC_ARM_LPC24XX_CHANNEL[set ::channel]_BUFSIZE {
                display "Size of data buffer"
                flavor  data
                legal_values  0x01 to 0x2000000
                default_value 512
                description "
                    This option controls the number of samples the
                    buffer can store. The required RAM depends on the
                    sample size and on the number of samples. If the
                    sample size is <= 8 bit the the required RAM =
                    size of data buffer. If the sample size is 9 or 10
                    bit then required RAM = size of data buffer * 2."
            } 
        } 
    }
    
    cdl_option CYGPKG_DEVS_ADC_ARM_LPC24XX_TESTS {
        display "Tests for LPC24xx ADC driver"
        flavor  data
        no_define
        calculated { "tests/lpc24xx_adc_test" }
        description   "
            This option specifies the set of tests for the LPC24xx 
            ADC device driver."
    }

}