93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/*
|
|
* 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);
|
|
}
|