ser_sh_scif.cdl

来自「eCos操作系统源码」· CDL 代码 · 共 178 行

# ====================================================================
#
#      ser_sh_scif.cdl
#
#      eCos serial SH/SCIF configuration data
#
# ====================================================================
#####ECOSGPLCOPYRIGHTBEGIN####
## -------------------------------------------
## This file is part of eCos, the Embedded Configurable Operating System.
## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, 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 ANY
## WARRANTY; without even the implied warranty of MERCHANTABILITY or
## 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.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 the GNU General Public
## License. However the source code for this file must still be made available
## in accordance with section (3) of the GNU General Public License.
##
## This exception does not invalidate any other reasons why a work based on
## this file might be covered by the GNU General Public License.
##
## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
## at http://sources.redhat.com/ecos/ecos-license/
## -------------------------------------------
#####ECOSGPLCOPYRIGHTEND####
# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      jskov
# Contributors:
# Date:           2000-04-04
#
#####DESCRIPTIONEND####
#
# ====================================================================


cdl_package CYGPKG_IO_SERIAL_SH_SCIF {
    display       "SH SCIF serial device drivers"

    parent        CYGPKG_IO_SERIAL_DEVICES
    active_if     CYGPKG_IO_SERIAL
    active_if     CYGPKG_HAL_SH

    active_if     CYGINT_IO_SERIAL_SH_SCIF_REQUIRED

    requires      CYGPKG_ERROR
    include_dir   cyg/io
    include_files ; # none _exported_ whatsoever
    description   "
           This option enables the serial device drivers for the
           SCIF module in Hitachi SH CPUs."

    compile       -library=libextras.a sh_scif_serial.c

    define_proc {
        puts $::cdl_system_header "/***** serial driver proc output start *****/"
        puts $::cdl_system_header "#ifndef CYGDAT_IO_SERIAL_DEVICE_HEADER"
        puts $::cdl_system_header "#define CYGDAT_IO_SERIAL_DEVICE_HEADER <pkgconf/io_serial_sh_scif.h>"
        puts $::cdl_system_header "#endif"
        puts $::cdl_system_header "/*****  serial driver proc output end  *****/"

        puts $::cdl_header "#include <pkgconf/system.h>";
        puts $::cdl_header "#include CYGDAT_IO_SERIAL_SH_SCIF_CFG";
    }

    # The driver tries to be effective with FIFO transfers
    implements    CYGINT_IO_SERIAL_BLOCK_TRANSFER

    cdl_interface CYGINT_IO_SERIAL_SH_SCIF_DMA {
        display       "SCIF serial driver DMA support"
        flavor        booldata
        description   "
            The serial driver can use DMA to move data from the
            transmit buffer to the serial controller if the CPU
            supports it."
    }

    cdl_interface CYGINT_IO_SERIAL_SH_SCIF_ASYNC_RXTX {
        display        "SCIF async RX/TX support"
        flavor         booldata
        description    "
            By enabling this option, the SCIF driver will
            be able to support controllers with transceivers
            that are asynchronous (RS4xx). This will cause
            RX to be disabled before TX is enabled, and vice
            versa."
    }

    cdl_interface CYGINT_IO_SERIAL_SH_SCIF_IRDA {
        display        "SCIF IrDA support"
        flavor         booldata
        description    "
            By enabling this option, the SCIF driver will
            be able to support controllers in IrDA mode."
    }

    cdl_option CYGHWR_IO_SERIAL_SH_SH2_SCIF_IRDA_TXRX_COMPENSATION {
        display          "SCIF IrDA TX/RX switch compensation"
        default_value    1
        active_if        CYGINT_IO_SERIAL_SH_SCIF_IRDA
        description      "
            When switching from TX mode to RX mode, the controller causes
            a spurious 0xff character to be received at speeds up to
            57600 baud. At higher baud rates, more spurious characters
            may be received. Enabling this option tries to remove the
            spurious characters, but since there are no errors reported
            from the controller, it is impossible to do so with any kind
            of precision.
            Having this option enabled allows some eCos serial tests to
            run. There is a matching option in the SH2 HAL controlling a
            similar kludge for the polled driver, making RedBoot usable.
            It is an incomplete kludge however, and for any real use of
            the IrDA mode for data transmission, the option should be
            disabled, and a protocol capable of handling the spurious
            receive characters must be used on top of the driver.
            Note that the problem is exaggerated when the baud rate is
            changed."
    }

    cdl_interface CYGINT_IO_SERIAL_SH_SCIF_BR_INTERRUPT {
        display       "Controller uses BR interrupts"
        flavor        booldata
        description   "
            Some controllers route BREAK interrupts to the
            error interrupt vector. Others have a separate
            vector. When this interface is implemented, the
            driver will handle the separate BR vector."
    }

    cdl_component CYGPKG_IO_SERIAL_SH_SCIF_OPTIONS {
        display "SCIF serial 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_SERIAL_SH_SCIF_CFLAGS_ADD {
            display "Additional compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building these serial device drivers. These flags are
                used in addition to the set of global flags."
        }

        cdl_option CYGPKG_IO_SERIAL_SH_SCIF_CFLAGS_REMOVE {
            display "Suppressed compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building these serial device drivers. These flags are
                removed from the set of global flags if present."
        }
    }
}
# EOF ser_sh_scif.cdl