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# ====================================================================
#
#      io_can.cdl
#
#      eCos IO configuration data
#
# ====================================================================
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# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      Uwe Kindler
# Original data:  gthomas
# Contributors:
# Date:           2005-05-17
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_IO_CAN {
    display       "CAN device drivers"
    parent        CYGPKG_IO
    active_if     CYGPKG_IO
    requires      CYGPKG_ERROR
    include_dir   cyg/io
    description   "
        This option enables drivers for basic I/O services on
        CAN devices."
    doc           ref/io.html

    compile       -library=libextras.a can.c
 
    define_proc {
        puts $::cdl_header "/***** proc output start *****/"
        puts $::cdl_header "#include <pkgconf/system.h>"
        puts $::cdl_header "#ifdef CYGDAT_IO_CAN_DEVICE_HEADER"
        puts $::cdl_header "# include CYGDAT_IO_CAN_DEVICE_HEADER"
        puts $::cdl_header "#endif "
        puts $::cdl_header "/****** proc output end ******/"
    }
    
    #-----------------------------------------------------------------
    # Interfaces
    # A hardware device driver should implement each interface it
    # supports
    #
    cdl_interface CYGINT_IO_CAN_TIMESTAMP {
        display "CAN driver supports timestamps"
    }
    
    cdl_interface CYGINT_IO_CAN_STD_CAN_ID {
        display "11 Bit standard CAN ID support"
    }
    
    cdl_interface CYGINT_IO_CAN_EXT_CAN_ID {
        display "29 Bit extended CAN ID support"
    }
    
    cdl_interface CYGINT_IO_CAN_RUNTIME_MBOX_CFG {
        display "CAN driver supports message box runtime configuration"
    }
    
    cdl_interface CYGINT_IO_CAN_REMOTE_BUF {
        display "CAN driver supports remote response buffers"
    }
    
    cdl_interface CYGINT_IO_CAN_AUTOBAUD {
        display "CAN driver supports automatic baudrate detection"
    }
    
    cdl_interface CYGINT_IO_CAN_TX_EVENTS {
        display "CAN driver supports TX events"
    }
    
    #-----------------------------------------------------------------
    # Each single channel of a CAN chip or on chip CAN module should
    # implement this interface. It counts the number of available
    # CAN channels
    #
    cdl_interface CYGINT_IO_CAN_CHANNELS {
        display "Number of CAN channels"
    }
    
    
    #-----------------------------------------------------------------
    # Generic CAN driver configuration
    #
    cdl_component CYGPKG_IO_CAN_DEVICES {
        display       "Hardware CAN device drivers"
        flavor        bool
        default_value 1
        description   "
            This option enables the hardware device drivers
                for the current platform."
    }
    
    cdl_option CYGOPT_IO_CAN_SUPPORT_TIMESTAMP {
        display       "Support CAN event timestamps"
        requires      { CYGINT_IO_CAN_TIMESTAMP > 0 }
        active_if     { CYGINT_IO_CAN_TIMESTAMP > 0 }
        default_value 0
        description "
            If the CAN hardware driver supports some kind of timestamps
            then this option enables propagation of timestamps to higher layers. 
            This may add some extra code to hardware drivers."
    }
    
    cdl_option CYGOPT_IO_CAN_TX_EVENT_SUPPORT {
        display       "Support TX events"
        requires      { CYGINT_IO_CAN_TX_EVENTS > 0 }
        active_if     { CYGINT_IO_CAN_TX_EVENTS > 0 }
        default_value 0
        description "
            This option enables support for TX events. If a CAN message is
            transmitted successfully a TX event will be inserted into the
            receive event queue and propagated to higher layers. If this
            option is enabled the RX event queue will be filled faster."
    }
    
    cdl_option CYGOPT_IO_CAN_STD_CAN_ID {
        display "11 Bit standard CAN ID support"
        requires      { CYGINT_IO_CAN_STD_CAN_ID > 0 }
        active_if     { CYGINT_IO_CAN_STD_CAN_ID > 0 }
        default_value { CYGINT_IO_CAN_STD_CAN_ID > 0 ? 1 : 0 }
        description "
               This option enables support for 11 Bit standard CAN identifiers.
               If the application deals only with 29 Bit extended CAN messages
               then disabling this option may reduce codesize or increase
               performance."
    }
    
    cdl_option CYGOPT_IO_CAN_EXT_CAN_ID {
        display "29 Bit extended CAN ID support"
        requires      { CYGINT_IO_CAN_EXT_CAN_ID > 0 }
        active_if     { CYGINT_IO_CAN_EXT_CAN_ID > 0 }
        default_value { CYGINT_IO_CAN_EXT_CAN_ID > 0 ? 1 : 0 }
        description "
               This option enables support for 29 Bit extended CAN identifiers.
               If the application deals only with 11 Bit standard CAN messages
               then disabling this option may reduce codesize or increase
               performance."
    }
    
     cdl_option CYGOPT_IO_CAN_AUTOBAUD {
        display "Support automatic baudrate detection."
        requires      { CYGINT_IO_CAN_AUTOBAUD > 0 }
        active_if     { CYGINT_IO_CAN_AUTOBAUD > 0 }
        default_value 0
        description "
                If the CAN hardware device driver supports any kind of automatic
                baudrate detection then this option enables support for this feature.
                If automatic baudrate detection is not required, then disabling this
                option may reduce codesize."
    }
    
    cdl_option CYGOPT_IO_CAN_RUNTIME_MBOX_CFG {
        display "Message box runtime configuration support"
        requires      { CYGINT_IO_CAN_RUNTIME_MBOX_CFG > 0 }
        active_if     { CYGINT_IO_CAN_RUNTIME_MBOX_CFG > 0 }
        default_value 1
        description "
                Message box runtime configuration is required for for hardware message 
                filtering and for hardware remote response buffers. If no hardware
                filtering is required and if the application does not need remote
                response buffers this option can be disabled to decrease codesize."
    }
    
    cdl_option CYGOPT_IO_CAN_REMOTE_BUF {
        display "Remote response buffer support"
        requires { CYGOPT_IO_CAN_RUNTIME_MBOX_CFG }
        requires { CYGINT_IO_CAN_REMOTE_BUF > 0}
        active_if  { CYGINT_IO_CAN_REMOTE_BUF > 0 }
        default_value 1
        description "
                If the driver should handle remote requests automatically then remote
                response buffers are required. Disabling this option may save some 
                bytes of ROM memory."
    }
        
    cdl_option CYGOPT_IO_CAN_SUPPORT_NONBLOCKING {
        display       "Support non-blocking read and write calls"
        default_value 0
        description   "
            This option enables extra code in the generic CAN driver
            which allows clients to switch read() and write() call
            semantics from blocking to non-blocking."
    }

    cdl_option CYGOPT_IO_CAN_SUPPORT_CALLBACK {
        display       "Support callback on events"
        default_value 0
        description   "
            This option enables extra code in the generic CAN driver
            which allows application to register a callback for
            events. The callback function is called from DSR
            context so you should be careful to only call API
            functions that are safe in DSR context."
    }

    cdl_component CYGOPT_IO_CAN_SUPPORT_TIMEOUTS {
        display       "Support read/write timeouts"
        flavor        bool
        default_value 0
        active_if     CYGPKG_KERNEL
        requires      CYGMFN_KERNEL_SYNCH_CONDVAR_TIMED_WAIT
        requires      CYGOPT_IO_CAN_SUPPORT_NONBLOCKING
        description   "
             Read and write operations are blocking calls. If no CAN message
             arrives for a long time the calling thread remains blocked. If
             nonblocking calls are enabled but the call should return after 
             a certain amount of time then this option should be enabled."
             
        cdl_option CYGNUM_IO_CAN_DEFAULT_TIMEOUT_READ {
            display "Default read timeout."
            flavor  data
            default_value 100
            description   "
                The initial timeout value in clock ticks for cyg_io_read() calls."
        }
        
        cdl_option CYGNUM_IO_CAN_DEFAULT_TIMEOUT_WRITE {
            display "Default write timeout."
            flavor  data
            default_value 100
            description   "
                The initial timeout value in clock ticks for cyg_io_write() calls."
        }
    }

    cdl_component CYGPKG_IO_CAN_OPTIONS {
        display "CAN device driver 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_CAN_CFLAGS_ADD {
            display "Additional compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the CAN device drivers. These flags are used
                in addition to the set of global flags."
        }

        cdl_option CYGPKG_IO_CAN_CFLAGS_REMOVE {
            display "Suppressed compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the CAN device drivers. These flags are
                removed from the set of global flags if present."
        }

    }

    cdl_option CYGBLD_IO_CAN_EXTRA_TESTS {
        display "Build extra CAN tests"
        default_value 0
        no_define
        description "
            This option enables the building of some extra tests which
            can be used when testing / debugging CAN drivers. These
            are not built by default since they do not use the dedicated
            testing infrastructure. All tests require a properly configured
            CAN network with a second CAN node that can send and receive
            CAN messages."
    
        make -priority 320 {
            <PREFIX>/bin/can_load : <PACKAGE>/tests/can_load.c
            @sh -c "mkdir -p tests $(dir $@)"
            $(CC) -c $(INCLUDE_PATH) -Wp,-MD,deps.tmp -I$(dir $<) $(CFLAGS) -o tests/can_load.o $<
            @echo $@ ": \\" > $(notdir $@).deps
            @echo $(wildcard $(PREFIX)/lib/*) " \\" >> $(notdir $@).deps
            @tail -n +2 deps.tmp >> $(notdir $@).deps
            @echo >> $(notdir $@).deps
            @rm deps.tmp
            $(CC) $(LDFLAGS) -L$(PREFIX)/lib -Ttarget.ld -o $@ tests/can_load.o
        }
        
        make -priority 320 {
            <PREFIX>/bin/can_remote : <PACKAGE>/tests/can_remote.c
            @sh -c "mkdir -p tests $(dir $@)"
            $(CC) -c $(INCLUDE_PATH) -Wp,-MD,deps.tmp -I$(dir $<) $(CFLAGS) -o tests/can_remote.o $<
            @echo $@ ": \\" > $(notdir $@).deps
            @echo $(wildcard $(PREFIX)/lib/*) " \\" >> $(notdir $@).deps
            @tail -n +2 deps.tmp >> $(notdir $@).deps
            @echo >> $(notdir $@).deps
            @rm deps.tmp
            $(CC) $(LDFLAGS) -L$(PREFIX)/lib -Ttarget.ld -o $@ tests/can_remote.o
        }
                
        make -priority 320 {
            <PREFIX>/bin/can_tx : <PACKAGE>/tests/can_tx.c
            @sh -c "mkdir -p tests $(dir $@)"
            $(CC) -c $(INCLUDE_PATH) -Wp,-MD,deps.tmp -I$(dir $<) $(CFLAGS) -o tests/can_tx.o $<
            @echo $@ ": \\" > $(notdir $@).deps
            @echo $(wildcard $(PREFIX)/lib/*) " \\" >> $(notdir $@).deps
            @tail -n +2 deps.tmp >> $(notdir $@).deps
            @echo >> $(notdir $@).deps
            @rm deps.tmp
            $(CC) $(LDFLAGS) -L$(PREFIX)/lib -Ttarget.ld -o $@ tests/can_tx.o
        }
        
        make -priority 320 {
            <PREFIX>/bin/can_filter : <PACKAGE>/tests/can_filter.c
            @sh -c "mkdir -p tests $(dir $@)"
            $(CC) -c $(INCLUDE_PATH) -Wp,-MD,deps.tmp -I$(dir $<) $(CFLAGS) -o tests/can_filter.o $<
            @echo $@ ": \\" > $(notdir $@).deps
            @echo $(wildcard $(PREFIX)/lib/*) " \\" >> $(notdir $@).deps
            @tail -n +2 deps.tmp >> $(notdir $@).deps
            @echo >> $(notdir $@).deps
            @rm deps.tmp
            $(CC) $(LDFLAGS) -L$(PREFIX)/lib -Ttarget.ld -o $@ tests/can_filter.o
        }
        
        make -priority 320 {
            <PREFIX>/bin/can_hdi : <PACKAGE>/tests/can_hdi.c
            @sh -c "mkdir -p tests $(dir $@)"
            $(CC) -c $(INCLUDE_PATH) -Wp,-MD,deps.tmp -I$(dir $<) $(CFLAGS) -o tests/can_hdi.o $<
            @echo $@ ": \\" > $(notdir $@).deps
            @echo $(wildcard $(PREFIX)/lib/*) " \\" >> $(notdir $@).deps
            @tail -n +2 deps.tmp >> $(notdir $@).deps
            @echo >> $(notdir $@).deps
            @rm deps.tmp
            $(CC) $(LDFLAGS) -L$(PREFIX)/lib -Ttarget.ld -o $@ tests/can_hdi.o
        }
    }
}

# EOF io_can.cdl