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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2000,2001,2002,2003,2004,2005,2007,2008,2009,2010,2013 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/serial.h>
#include <grub/types.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/usb.h>
#include <grub/usbserial.h>
#include <grub/i18n.h>
GRUB_MOD_LICENSE ("GPLv3+");
/* Fetch a key. */
static int
usbdebug_late_hw_fetch (struct grub_serial_port *port)
{
return grub_usbserial_fetch (port, 0);
}
/* Put a character. */
static void
usbdebug_late_hw_put (struct grub_serial_port *port, const int c)
{
char cc = c;
grub_usb_bulk_write (port->usbdev, port->out_endp, 1, &cc);
}
static grub_err_t
usbdebug_late_hw_configure (struct grub_serial_port *port __attribute__ ((unused)),
struct grub_serial_config *config __attribute__ ((unused)))
{
return GRUB_ERR_NONE;
}
static struct grub_serial_driver grub_usbdebug_late_driver =
{
.configure = usbdebug_late_hw_configure,
.fetch = usbdebug_late_hw_fetch,
.put = usbdebug_late_hw_put,
.fini = grub_usbserial_fini
};
static int
grub_usbdebug_late_attach (grub_usb_device_t usbdev, int configno, int interfno)
{
grub_usb_err_t err;
struct grub_usb_desc_debug debugdesc;
err = grub_usb_get_descriptor (usbdev, GRUB_USB_DESCRIPTOR_DEBUG, configno,
sizeof (debugdesc), (char *) &debugdesc);
if (err)
return 0;
return grub_usbserial_attach (usbdev, configno, interfno,
&grub_usbdebug_late_driver,
debugdesc.in_endp, debugdesc.out_endp);
}
static struct grub_usb_attach_desc attach_hook =
{
.class = 0xff,
.hook = grub_usbdebug_late_attach
};
GRUB_MOD_INIT(usbserial_usbdebug_late)
{
grub_usb_register_attach_hook_class (&attach_hook);
}
GRUB_MOD_FINI(usbserial_usbdebug_late)
{
grub_serial_unregister_driver (&grub_usbdebug_late_driver);
grub_usb_unregister_attach_hook_class (&attach_hook);
}
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