source: mainline/uspace/lib/usb/src/hcdrv.c@ 1f43c8f

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 1f43c8f was 1f43c8f, checked in by Vojtech Horky <vojtechhorky@…>, 15 years ago

Bugfixes and workarounds

Fixed problem when VHC died due to uninitialized list.

Another workaround for devman. Probably another deadlock. Oh, well.

  • Property mode set to 100644
File size: 3.1 KB
Line 
1/*
2 * Copyright (c) 2010 Vojtech Horky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup libusb usb
30 * @{
31 */
32/** @file
33 * @brief HC driver.
34 */
35#include <usb/hcdhubd.h>
36#include <usb/devreq.h>
37#include <usbhc_iface.h>
38#include <usb/descriptor.h>
39#include <driver.h>
40#include <bool.h>
41#include <errno.h>
42#include <usb/classes/hub.h>
43
44#include "hcdhubd_private.h"
45
46/** List of handled host controllers. */
47LIST_INITIALIZE(hc_list);
48
49/** Our HC driver. */
50usb_hc_driver_t *hc_driver = NULL;
51
52static device_ops_t usb_device_ops = {
53 .interfaces[USBHC_DEV_IFACE] = &usbhc_interface
54};
55
56static usb_hc_device_t *usb_hc_device_create(device_t *dev) {
57 usb_hc_device_t *hc_dev = malloc(sizeof (usb_hc_device_t));
58
59 list_initialize(&hc_dev->link);
60 list_initialize(&hc_dev->hubs);
61 list_initialize(&hc_dev->attached_devices);
62 hc_dev->transfer_ops = NULL;
63
64 hc_dev->generic = dev;
65 dev->ops = &usb_device_ops;
66 hc_dev->generic->driver_data = hc_dev;
67
68 return hc_dev;
69}
70
71int usb_add_hc_device(device_t *dev)
72{
73 usb_hc_device_t *hc_dev = usb_hc_device_create(dev);
74
75 int rc = hc_driver->add_hc(hc_dev);
76 if (rc != EOK) {
77 free(hc_dev);
78 return rc;
79 }
80
81 /*
82 * FIXME: The following line causes devman to hang.
83 * Will investigate later why.
84 */
85 // add_device_to_class(dev, "usbhc");
86
87 list_append(&hc_dev->link, &hc_list);
88
89 /*
90 * FIXME: the following is a workaround to force loading of USB
91 * keyboard driver.
92 * Will be removed as soon as the hub driver is completed and
93 * can detect connected devices.
94 */
95 printf("%s: trying to add USB HID child device...\n", hc_driver->name);
96 rc = usb_hc_add_child_device(dev, USB_KBD_DEVICE_NAME, "usb&hid", false);
97 if (rc != EOK) {
98 printf("%s: adding USB HID child failed...\n", hc_driver->name);
99 }
100
101 return EOK;
102}
103
104/**
105 * @}
106 */
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