usbs.cdl

eCos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.
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## or inline functions from this file, or you compile this file and link it
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#####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"
    }
}