usbs.cdl

开放源码实时操作系统源码.

# ====================================================================
#
#      usbs.cdl
#
#      USB slave-side support
#
# ====================================================================
#####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):      bartv
# Original data:  bartv
# Contributors:
# Date:           2000-10-04
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_IO_USB_SLAVE {
    display     "USB slave-side support"
    parent      CYGPKG_IO_USB
    include_dir "cyg/io/usb"
    active_if   CYGHWR_IO_USB_SLAVE
    doc         ref/io-usb-slave.html
    
    compile usbs.c

    cdl_interface CYGINT_IO_USB_SLAVE_CLIENTS {
	display         "Number of clients of USB devices"
	description "
	    This counter keeps track of the number of clients of
	    USB devices, especially application-class packages such
	    as the USB-ethernet support. It can be used by USB
	    device drivers for default settings.
	"
    }

    cdl_option CYGGLO_IO_USB_SLAVE_APPLICATION {
	display         "Application code uses USB devices"
	default_value   0
	implements      CYGINT_IO_USB_SLAVE_CLIENTS
	description "
	    If the USB devices are accessed by application code
	    rather than by other packages then enabling this
	    option will cause the USB device drivers to be enabled. 
	"
    }
    
    cdl_option CYGGLO_IO_USB_SLAVE_PROVIDE_DEVTAB_ENTRIES {
	display         "Provide devtab entries by default"
	default_value   CYGPKG_IO
	requires        CYGPKG_IO
	description "
	    The USB slave-side endpoints can typically be accessed in two
	    different ways. There is support for the traditional way of
	    doing I/O with open/read/write calls, which involves the
	    use of devtab entries. It is also possible to use a
	    USB-specific API, defined largely in terms of asynchronous
	    operations and callbacks (the read/write implementation uses
	    these lower-level calls). If neither the application nor
	    any other USB-related packages require the higher-level
            read/write calls then it is possible to save some memory
	    by eliminating the devtab entries.
	"
    }
    
    cdl_interface CYGHWR_IO_USB_SLAVE_OUT_ENDPOINTS {
	display "Number of available host->slave endpoints"
    }
    cdl_interface CYGHWR_IO_USB_SLAVE_IN_ENDPOINTS {
	display "Number of available slave->host endpoints"
    }

    cdl_option CYGBLD_IO_USB_SLAVE_USBTEST {
	display         "Build the main USB test program"
	doc             ref/usbs-testing.html
	description "
	    The USB slave-side software is supplied with host-side
            and target-side software that allows a variety of testing
	    to be performed. The slave-side software is not built
	    by default since it can only operate in specific environments
	    and in conjunction with the host-side software. Enabling
	    this option causes the slave-side software to be added
	    to the list of test cases for the current configuration."
	default_value   0
	implements      CYGINT_IO_USB_SLAVE_CLIENTS
	requires        { is_substr(CYGPKG_IO_USB_SLAVE_TESTS, " tests/usbtarget") }

	requires        CYGFUN_KERNEL_API_C CYGFUN_KERNEL_THREADS_TIMER !CYGINT_KNEREL_SCHEDULER_UNIQUE_PRIORITIES
	requires        CYGPKG_LIBC_STDIO CYGSEM_LIBC_STDIO_THREAD_SAFE_STREAMS
    }
    
    cdl_option CYGPKG_IO_USB_SLAVE_TESTS {
	display   "Kernel tests"
	flavor    data
	no_define
	default_value { "" }
	description "This option specifies the set of tests to be
            built for the USB slave package"
    }
}