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Current Path: /usr/src/sys/dev/usb

📁 ..
📁 controller
📁 gadget
📁 input
📁 misc
📁 net
📁 quirk
📁 serial
📁 storage
📁 template
📄 ufm_ioctl.h(1.85 KB)
📄 uftdiio.h(3.51 KB)
📄 uled_ioctl.h(1.61 KB)
📄 usb.h(24.12 KB)
📄 usb_bus.h(4.41 KB)
📄 usb_busdma.c(27.5 KB)
📄 usb_busdma.h(5.26 KB)
📄 usb_cdc.h(8.17 KB)
📄 usb_controller.h(6.1 KB)
📄 usb_core.c(2.53 KB)
📄 usb_core.h(6.83 KB)
📄 usb_debug.c(10.43 KB)
📄 usb_debug.h(3.23 KB)
📄 usb_dev.c(51.38 KB)
📄 usb_dev.h(5.12 KB)
📄 usb_device.c(77.7 KB)
📄 usb_device.h(11.68 KB)
📄 usb_dynamic.c(4.74 KB)
📄 usb_dynamic.h(2.5 KB)
📄 usb_endian.h(3.6 KB)
📄 usb_error.c(3.69 KB)
📄 usb_fdt_support.c(5.84 KB)
📄 usb_fdt_support.h(2.06 KB)
📄 usb_freebsd.h(3.96 KB)
📄 usb_freebsd_loader.h(3.74 KB)
📄 usb_generic.c(52.22 KB)
📄 usb_generic.h(1.66 KB)
📄 usb_handle_request.c(18.78 KB)
📄 usb_hid.c(4.59 KB)
📄 usb_hub.c(72.44 KB)
📄 usb_hub.h(2.98 KB)
📄 usb_hub_acpi.c(15.4 KB)
📄 usb_hub_private.h(2.73 KB)
📄 usb_if.m(2.27 KB)
📄 usb_ioctl.h(12.01 KB)
📄 usb_lookup.c(4.59 KB)
📄 usb_mbuf.c(3.08 KB)
📄 usb_mbuf.h(3.04 KB)
📄 usb_msctest.c(27.07 KB)
📄 usb_msctest.h(2.32 KB)
📄 usb_parse.c(9.2 KB)
📄 usb_pci.h(1.68 KB)
📄 usb_pf.c(13.22 KB)
📄 usb_pf.h(4.85 KB)
📄 usb_process.c(14.31 KB)
📄 usb_process.h(3.01 KB)
📄 usb_request.c(60.92 KB)
📄 usb_request.h(5.09 KB)
📄 usb_transfer.c(91.06 KB)
📄 usb_transfer.h(7.59 KB)
📄 usb_util.c(6.04 KB)
📄 usb_util.h(1.62 KB)
📄 usbdevs(201.48 KB)
📄 usbdi.h(24.3 KB)
📄 usbdi_util.h(3.97 KB)
📄 usbhid.h(3.26 KB)
📁 video
📁 wlan

Editing: usb_util.c

/* $FreeBSD$ */
/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifdef USB_GLOBAL_INCLUDE_FILE
#include USB_GLOBAL_INCLUDE_FILE
#else
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>

#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>

#include <dev/usb/usb_core.h>
#include <dev/usb/usb_util.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/usb_device.h>
#include <dev/usb/usb_request.h>
#include <dev/usb/usb_busdma.h>

#include <dev/usb/usb_controller.h>
#include <dev/usb/usb_bus.h>
#endif			/* USB_GLOBAL_INCLUDE_FILE */

/*------------------------------------------------------------------------*
 *	device_set_usb_desc
 *
 * This function can be called at probe or attach to set the USB
 * device supplied textual description for the given device.
 *------------------------------------------------------------------------*/
void
device_set_usb_desc(device_t dev)
{
	struct usb_attach_arg *uaa;
	struct usb_device *udev;
	struct usb_interface *iface;
	char *temp_p;
	usb_error_t err;
	uint8_t do_unlock;

if (dev == NULL) {
		/* should not happen */
		return;
	}
	uaa = device_get_ivars(dev);
	if (uaa == NULL) {
		/* can happen if called at the wrong time */
		return;
	}
	udev = uaa->device;
	iface = uaa->iface;

if ((iface == NULL) ||
	    (iface->idesc == NULL) ||
	    (iface->idesc->iInterface == 0)) {
		err = USB_ERR_INVAL;
	} else {
		err = 0;
	}

/* Protect scratch area */
	do_unlock = usbd_ctrl_lock(udev);

temp_p = (char *)udev->scratch.data;

if (err == 0) {
		/* try to get the interface string ! */
		err = usbd_req_get_string_any(udev, NULL, temp_p,
		    sizeof(udev->scratch.data),
		    iface->idesc->iInterface);
	}
	if (err != 0) {
		/* use default description */
		usb_devinfo(udev, temp_p,
		    sizeof(udev->scratch.data));
	}

if (do_unlock)
		usbd_ctrl_unlock(udev);

device_set_desc_copy(dev, temp_p);
	device_printf(dev, "<%s> on %s\n", temp_p,
	    device_get_nameunit(udev->bus->bdev));
}

/*------------------------------------------------------------------------*
 *	 usb_pause_mtx - factored out code
 *
 * This function will delay the code by the passed number of system
 * ticks. The passed mutex "mtx" will be dropped while waiting, if
 * "mtx" is different from NULL.
 *------------------------------------------------------------------------*/
void
usb_pause_mtx(struct mtx *mtx, int timo)
{
	if (mtx != NULL)
		mtx_unlock(mtx);

/*
	 * Add one tick to the timeout so that we don't return too
	 * early! Note that pause() will assert that the passed
	 * timeout is positive and non-zero!
	 */
	pause("USBWAIT", timo + 1);

if (mtx != NULL)
		mtx_lock(mtx);
}

/*------------------------------------------------------------------------*
 *	usb_printbcd
 *
 * This function will print the version number "bcd" to the string
 * pointed to by "p" having a maximum length of "p_len" bytes
 * including the terminating zero.
 *------------------------------------------------------------------------*/
void
usb_printbcd(char *p, uint16_t p_len, uint16_t bcd)
{
	if (snprintf(p, p_len, "%x.%02x", bcd >> 8, bcd & 0xff)) {
		/* ignore any errors */
	}
}

/*------------------------------------------------------------------------*
 *	usb_trim_spaces
 *
 * This function removes spaces at the beginning and the end of the string
 * pointed to by the "p" argument.
 *------------------------------------------------------------------------*/
void
usb_trim_spaces(char *p)
{
	char *q;
	char *e;

if (p == NULL)
		return;
	q = e = p;
	while (*q == ' ')		/* skip leading spaces */
		q++;
	while ((*p = *q++))		/* copy string */
		if (*p++ != ' ')	/* remember last non-space */
			e = p;
	*e = 0;				/* kill trailing spaces */
}

/*------------------------------------------------------------------------*
 *	usb_make_str_desc - convert an ASCII string into a UNICODE string
 *------------------------------------------------------------------------*/
uint8_t
usb_make_str_desc(void *ptr, uint16_t max_len, const char *s)
{
	struct usb_string_descriptor *p = ptr;
	uint8_t totlen;
	int j;

if (max_len < 2) {
		/* invalid length */
		return (0);
	}
	max_len = ((max_len / 2) - 1);

j = strlen(s);

if (j < 0) {
		j = 0;
	}
	if (j > 126) {
		j = 126;
	}
	if (max_len > j) {
		max_len = j;
	}
	totlen = (max_len + 1) * 2;

p->bLength = totlen;
	p->bDescriptorType = UDESC_STRING;

while (max_len--) {
		USETW2(p->bString[max_len], 0, s[max_len]);
	}
	return (totlen);
}

003 File Manager

Editing: usb_util.c

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