usbs_sa11x0_data.cxx

Sa11的USB驱动

//==========================================================================
//
//      usbs_sa11x0.c
//
//      Static data for the SA11x0 USB device driver
//
//==========================================================================
//####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.
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// 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
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// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
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// 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/
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//####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    bartv
// Contributors: bartv
// Date:         2000-10-04
//
// This file contains various objects that should go into extras.o
// rather than libtarget.a, e.g. devtab entries that would normally
// be eliminated by the selective linking.
//
//####DESCRIPTIONEND####
//==========================================================================

#include <cyg/io/devtab.h>
#include <cyg/io/usb/usbs_sa11x0.h>
#include <pkgconf/devs_usb_sa11x0.h>

// ----------------------------------------------------------------------------
// Initialization. The goal here is to call usbs_sa11x0_init()
// early on during system startup, to take care of things like
// registering interrupt handlers etc. which are best done
// during system init.
//
// If the endpoint 0 devtab entry is available then its init()
// function can be used to take care of this. However the devtab
// entries are optional so an alternative mechanism must be
// provided. Unfortunately although it is possible to give
// a C function the constructor attribute, it cannot be given
// an initpri attribute. Instead it is necessary to define a
// dummy C++ class.

extern "C" void usbs_sa11x0_init(void);

#ifndef CYGVAR_DEVS_USB_SA11X0_EP0_DEVTAB_ENTRY
class usbs_sa11x0_initialization {
  public:
    usbs_sa11x0_initialization() {
        usbs_sa11x0_init();
    }
};

static usbs_sa11x0_initialization usbs_sa11x0_init_object CYGBLD_ATTRIB_INIT_PRI(CYG_INIT_IO);
#endif

// ----------------------------------------------------------------------------
// The devtab entries. Each of these is optional, many applications
// will want to use the lower-level API rather than go via
// open/read/write/ioctl.

#ifdef CYGVAR_DEVS_USB_SA11X0_EP0_DEVTAB_ENTRY

// For endpoint 0 the only legal operations are get_config() and
// set_config(), and these are provided by the common package.

static bool
usbs_sa11x0_devtab_ep0_init(struct cyg_devtab_entry* tab)
{
    CYG_UNUSED_PARAM(struct cyg_devtab_entry*, tab);
    usbs_sa11x0_init();
    return true;
}

static CHAR_DEVIO_TABLE(usbs_sa11x0_ep0_devtab_functions,
                        &cyg_devio_cwrite,
                        &cyg_devio_cread,
                        &cyg_devio_select,
                        &usbs_devtab_get_config,
                        &usbs_devtab_set_config);

static CHAR_DEVTAB_ENTRY(usbs_sa11x0_ep0_devtab_entry,
                         CYGDAT_DEVS_USB_SA11X0_DEVTAB_BASENAME "0c",
                         0,
                         &usbs_sa11x0_ep0_devtab_functions,
                         &usbs_sa11x0_devtab_ep0_init,
                         0,
                         (void*) &usbs_sa11x0_ep0);
#endif

// ----------------------------------------------------------------------------
// Common routines for ep1 and ep2.
#if defined(CYGVAR_DEVS_USB_SA11X0_EP1_DEVTAB_ENTRY) || defined(CYGVAR_DEVS_USB_SA11X0_EP2_DEVTAB_ENTRY)
static bool
usbs_sa11x0_devtab_dummy_init(struct cyg_devtab_entry* tab)
{
    CYG_UNUSED_PARAM(struct cyg_devtab_entry*, tab);
    return true;
}
#endif

// ----------------------------------------------------------------------------
// ep1 devtab entry. This can only be used for host->slave, so only the
// cread() function makes sense.

#ifdef CYGVAR_DEVS_USB_SA11X0_EP1_DEVTAB_ENTRY

static CHAR_DEVIO_TABLE(usbs_sa11x0_ep1_devtab_functions,
                        &cyg_devio_cwrite,
                        &usbs_devtab_cread,
                        &cyg_devio_select,
                        &usbs_devtab_get_config,
                        &usbs_devtab_set_config);

static CHAR_DEVTAB_ENTRY(usbs_sa11x0_ep1_devtab_entry,
                         CYGDAT_DEVS_USB_SA11X0_DEVTAB_BASENAME "1r",
                         0,
                         &usbs_sa11x0_ep1_devtab_functions,
                         &usbs_sa11x0_devtab_dummy_init,
                         0,
                         (void*) &usbs_sa11x0_ep1);
#endif

// ----------------------------------------------------------------------------
// ep2 devtab entry. This can only be used for slave->host, so only
// the cwrite() function makes sense.

#ifdef CYGVAR_DEVS_USB_SA11X0_EP2_DEVTAB_ENTRY

static CHAR_DEVIO_TABLE(usbs_sa11x0_ep2_devtab_functions,
                        &usbs_devtab_cwrite,
                        &cyg_devio_cread,
                        &cyg_devio_select,
                        &usbs_devtab_get_config,
                        &usbs_devtab_set_config);

static DEVTAB_ENTRY(usbs_sa11x0_ep2_devtab_entry,
                    CYGDAT_DEVS_USB_SA11X0_DEVTAB_BASENAME "2w",
                    0,
                    &usbs_sa11x0_ep2_devtab_functions,
                    &usbs_sa11x0_devtab_dummy_init,
                    0,
                    (void*) &usbs_sa11x0_ep2);

#endif