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/* usbtest.c - test module for USB */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2008 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/types.h>
#include <grub/misc.h>
#include <grub/charset.h>
#include <grub/mm.h>
#include <grub/err.h>
#include <grub/dl.h>
#include <grub/usb.h>
#include <grub/command.h>
#include <grub/i18n.h>
GRUB_MOD_LICENSE ("GPLv3+");
static const char *usb_classes[] =
{
"Unknown",
"Audio",
"Communication Interface",
"HID",
"Unknown",
"Physical",
"Image",
"Printer",
"Mass Storage",
"Hub",
"Data Interface",
"Smart Card",
"Content Security",
"Video"
};
static const char *usb_endp_type[] =
{
"Control",
"Isochronous",
"Bulk",
"Interrupt"
};
static const char *usb_devspeed[] =
{
"",
"Low",
"Full",
"High"
};
#if __GNUC__ >= 9
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
#endif
static grub_usb_err_t
grub_usb_get_string (grub_usb_device_t dev, grub_uint8_t index, int langid,
char **string)
{
struct grub_usb_desc_str descstr;
struct grub_usb_desc_str *descstrp;
grub_usb_err_t err;
/* Only get the length. */
err = grub_usb_control_msg (dev, 1 << 7,
0x06, (3 << 8) | index,
langid, 1, (char *) &descstr);
if (err)
return err;
descstrp = grub_malloc (descstr.length);
if (! descstrp)
return GRUB_USB_ERR_INTERNAL;
err = grub_usb_control_msg (dev, 1 << 7,
0x06, (3 << 8) | index,
langid, descstr.length, (char *) descstrp);
if (descstrp->length == 0)
{
grub_free (descstrp);
*string = grub_strdup ("");
if (! *string)
return GRUB_USB_ERR_INTERNAL;
return GRUB_USB_ERR_NONE;
}
*string = grub_malloc (descstr.length * 2 + 1);
if (! *string)
{
grub_free (descstrp);
return GRUB_USB_ERR_INTERNAL;
}
*grub_utf16_to_utf8 ((grub_uint8_t *) *string, descstrp->str,
descstrp->length / 2 - 1) = 0;
grub_free (descstrp);
return GRUB_USB_ERR_NONE;
}
#if __GNUC__ >= 9
#pragma GCC diagnostic pop
#endif
static void
usb_print_str (const char *description, grub_usb_device_t dev, int idx)
{
char *name = NULL;
grub_usb_err_t err;
/* XXX: LANGID */
if (! idx)
return;
err = grub_usb_get_string (dev, idx, 0x0409, &name);
if (err)
grub_printf ("Error %d retrieving %s\n", err, description);
else
{
grub_printf ("%s: `%s'\n", description, name);
grub_free (name);
}
}
static int
usb_iterate (grub_usb_device_t dev, void *data __attribute__ ((unused)))
{
struct grub_usb_desc_device *descdev;
int i;
descdev = &dev->descdev;
usb_print_str ("Product", dev, descdev->strprod);
usb_print_str ("Vendor", dev, descdev->strvendor);
usb_print_str ("Serial", dev, descdev->strserial);
grub_printf ("Class: (0x%02x) %s, Subclass: 0x%02x, Protocol: 0x%02x\n",
descdev->class, descdev->class < ARRAY_SIZE (usb_classes)
? usb_classes[descdev->class] : "Unknown",
descdev->subclass, descdev->protocol);
grub_printf ("USB version %d.%d, VendorID: 0x%02x, ProductID: 0x%02x, #conf: %d\n",
descdev->usbrel >> 8, (descdev->usbrel >> 4) & 0x0F,
descdev->vendorid, descdev->prodid, descdev->configcnt);
grub_printf ("%s speed device\n", usb_devspeed[dev->speed]);
for (i = 0; i < descdev->configcnt; i++)
{
struct grub_usb_desc_config *config;
config = dev->config[i].descconf;
usb_print_str ("Configuration:", dev, config->strconfig);
}
for (i = 0; i < dev->config[0].descconf->numif; i++)
{
int j;
struct grub_usb_desc_if *interf;
interf = dev->config[0].interf[i].descif;
grub_printf ("Interface #%d: #Endpoints: %d ",
i, interf->endpointcnt);
grub_printf ("Class: (0x%02x) %s, Subclass: 0x%02x, Protocol: 0x%02x\n",
interf->class, interf->class < ARRAY_SIZE (usb_classes)
? usb_classes[interf->class] : "Unknown",
interf->subclass, interf->protocol);
usb_print_str ("Interface", dev, interf->strif);
for (j = 0; j < interf->endpointcnt; j++)
{
struct grub_usb_desc_endp *endp;
endp = &dev->config[0].interf[i].descendp[j];
grub_printf ("Endpoint #%d: %s, max packed size: %d, transfer type: %s, latency: %d\n",
endp->endp_addr & 15,
(endp->endp_addr & 128) ? "IN" : "OUT",
endp->maxpacket, usb_endp_type[endp->attrib & 3],
endp->interval);
}
}
grub_printf("\n");
return 0;
}
static grub_err_t
grub_cmd_usbtest (grub_command_t cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char **args __attribute__ ((unused)))
{
grub_usb_poll_devices (1);
grub_printf ("USB devices:\n\n");
grub_usb_iterate (usb_iterate, NULL);
return 0;
}
static grub_command_t cmd;
GRUB_MOD_INIT(usbtest)
{
cmd = grub_register_command ("usb", grub_cmd_usbtest,
0, N_("Test USB support."));
}
GRUB_MOD_FINI(usbtest)
{
grub_unregister_command (cmd);
}
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