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# ====================================================================
#
#       mcfxxxx_eth.cdl
#
#       Ethernet driver for Freescale MCFxxxx ColdFires
#
# ====================================================================
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# -------------------------------------------                               
# This file is part of eCos, the Embedded Configurable Operating System.    
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# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      bartv
# Date:           2003-06-04
#
#####DESCRIPTIONEND####
# ====================================================================

cdl_package CYGPKG_DEVS_ETH_MCFxxxx {
    display         "MCFxxxx ethernet driver"
    doc         ref/devs-eth-m68k-mcfxxxx-part.html
    parent          CYGPKG_IO_ETH_DRIVERS
    active_if   CYGPKG_IO_ETH_DRIVERS
    active_if   CYGPKG_HAL_M68K_MCFxxxx
    include_dir cyg/io/eth
    
    implements  CYGHWR_NET_DRIVERS
    implements  CYGHWR_NET_DRIVER_ETH0
    implements  CYGINT_IO_ETH_MULTICAST
    requires    CYGPKG_INFRA CYGPKG_HAL CYGPKG_ISOINFRA
    compile     -library=libextras.a if_mcf5272.c
    
    description "
        This driver supports the on-chip ethernet provided by some
        Freescale MCFxxxx coldfire processors."
    

    cdl_option CYGDAT_DEVS_ETH_MCFxxxx_NAME {
        display             "Device name for this ethernet device"
        flavor              data
        default_value   {"\"eth0\""}
        description "
            This option controls the name of the on-chip ethernet device.
            By default the on-chip device is labelled eth0, and any
            additional devices can be named eth1 onwards."
    }

    cdl_option CYGNUM_DEVS_ETH_MCFxxxx_RXBUFFERS {
        display             "Number of receive buffers"
        flavor              data
        default_value   4
        legal_values    2 to 16
        description "
            This ethernet driver statically allocates a number of buffers
            for incoming packets. Usually each buffer requires 1528 bytes.
            Increasing the number of buffers reduces the probability of packets getting
            lost under heavy processor or network load. Reducing the number
            of buffers makes lost packets more likely, potentially causing
            significant TCP/IP delays."
    }

    cdl_option CYGNUM_DEVS_ETH_MCFxxxx_ISR_RX_PRIORITY {
        display         "Interrupt priority for incoming packets"
        flavor          data
        default_value   { is_loaded(CYGNUM_HAL_M68K_MCFxxxx_ISR_DEFAULT_PRIORITY_ETH_RX) ?
            CYGNUM_HAL_M68K_MCFxxxx_ISR_DEFAULT_PRIORITY_ETH_RX :
            CYGNUM_HAL_M68K_MCFxxxx_ISR_PRIORITY_MIN }
        legal_values    CYGNUM_HAL_M68K_MCFxxxx_ISR_PRIORITY_MIN to CYGNUM_HAL_M68K_MCFxxxx_ISR_PRIORITY_MAX
        description "
            By default the ethernet is given an interrupt priority of 1,
            in other words it will interrupt at IPL level 1. The device can
            be made to interrupt at a higher priority but this is rarely
            useful since nearly all processing happens at thread level
            or DSR level rather than ISR level."
    }

    cdl_option CYGNUM_DEVS_ETH_MCFxxxx_ISR_TX_PRIORITY {
        display         "Interrupt priority for packet transmits"
        flavor          data
        default_value   { is_loaded(CYGNUM_HAL_M68K_MCFxxxx_ISR_DEFAULT_PRIORITY_ETH_TX) ?
            CYGNUM_HAL_M68K_MCFxxxx_ISR_DEFAULT_PRIORITY_ETH_TX :
            CYGNUM_HAL_M68K_MCFxxxx_ISR_PRIORITY_MIN }
        legal_values    CYGNUM_HAL_M68K_MCFxxxx_ISR_PRIORITY_MIN to CYGNUM_HAL_M68K_MCFxxxx_ISR_PRIORITY_MAX
        description "
            By default the ethernet is given an interrupt priority of 1,
            in other words it will interrupt at IPL level 1. The device can
            be made to interrupt at a higher priority but this is rarely
            useful since nearly all processing happens at thread level
            or DSR level rather than ISR level."
    }

    cdl_interface CYGINT_DEVS_ETH_MCFxxxx_PLATFORM_MAC {
        display         "Platform provides network MAC address"
        flavor          bool
    }

    cdl_option CYGDAT_DEVS_ETH_MCFxxxx_PLATFORM_MAC {
        display         "Default MAC address"
        active_if       !CYGINT_DEVS_ETH_MCFxxxx_PLATFORM_MAC
        flavor          data
        default_value   { "0x00, 0xFF, 0x12, 0x34, 0x56, 0x78" }
        description "
            If the target board does not provide a fixed unique ethernet
            MAC address assigned by the IEEE then it is necessary to invent one.
            If RedBoot is in use and provides configuration data held in
            flash then that will be used. If RedBoot is not in use or if the
            fconfig flash block does not contain an entry for the MAC address
            then the code will use a default value, determined by this option.
            If the local network has multiple boards attached then it is
            essential that each one has a unique MAC address."
    }

    cdl_option CYGFUN_DEVS_ETH_MCFxxxx_STATISTICS {
        display         "Maintain traffic statistics"
        flavor          bool
        default_value   CYGPKG_SNMPAGENT
        description "
            The MCFxxxx ethernet driver can maintain some statistics
            about traffic, for example the number of incoming and
                outgoing packets. These statistics are intended mainly
            for SNMP agent software."
    }
    
    cdl_component CYGPKG_DEVS_ETH_MCFxxxx_OPTIONS {
        display     "Build options"
        flavor      none
        description "
                Package-specific build options including control over compiler
            flags used only in building this package."

        cdl_option CYGPKG_DEVS_ETH_MCFxxxx_CFLAGS_ADD {
            display "Additional compiler flags"
            flavor  data
            no_define
            requires {
                is_substr(CYGBLD_GLOBAL_CFLAGS, "-O1") || is_substr(CYGBLD_GLOBAL_CFLAGS, "-O2") ||
                is_substr(CYGBLD_GLOBAL_CFLAGS, "-O3") || is_substr(CYGBLD_GLOBAL_CFLAGS, "-Os") ||
                is_substr(CYGPKG_DEVS_ETH_MCFxxxx_CFLAGS_ADD, "-O1") ||
                is_substr(CYGPKG_DEVS_ETH_MCFxxxx_CFLAGS_ADD, "-O2") ||
                is_substr(CYGPKG_DEVS_ETH_MCFxxxx_CFLAGS_ADD, "-O3") ||
                is_substr(CYGPKG_DEVS_ETH_MCFxxxx_CFLAGS_ADD, "-Os")
            }
            default_value { ((is_substr(CYGBLD_GLOBAL_CFLAGS, "-O1") || is_substr(CYGBLD_GLOBAL_CFLAGS, "-O2") ||
                              is_substr(CYGBLD_GLOBAL_CFLAGS, "-O3") || is_substr(CYGBLD_GLOBAL_CFLAGS, "-Os")) ? "" : "-O2 ") .
                             "-D_KERNEL -D__ECOS" }
            description   "
                This option modifies the set of compiler flags for
                building this package. These flags are used in addition
                to the set of global flags. Note that the package cannot
                be built with -O0: some of the cache-related code depends
                on certain values being held in registers instead of
                memory."
        }
        cdl_option CYGPKG_DEVS_ETH_MCFxxxx_CFLAGS_REMOVE {
            display "Suppressed compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building this package. These flags are removed from
                the set of global flags if present."
        }
    }
}