tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Wire Adapter Host Controller Driver
3 * Common items to HWA and DWA based HCDs
4 *
5 * Copyright (C) 2005-2006 Intel Corporation
6 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License version
10 * 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 * 02110-1301, USA.
21 *
22 *
23 * FIXME: docs
24 */
25#include <linux/slab.h>
26#include "wusbhc.h"
27#include "wa-hc.h"
28
29/**
30 * Assumes
31 *
32 * wa->usb_dev and wa->usb_iface initialized and refcounted,
33 * wa->wa_descr initialized.
34 */
35int wa_create(struct wahc *wa, struct usb_interface *iface)
36{
37 int result;
38 struct device *dev = &iface->dev;
39
40 result = wa_rpipes_create(wa);
41 if (result < 0)
42 goto error_rpipes_create;
43 /* Fill up Data Transfer EP pointers */
44 wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc;
45 wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
46 wa->xfer_result_size = le16_to_cpu(wa->dti_epd->wMaxPacketSize);
47 wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
48 if (wa->xfer_result == NULL)
49 goto error_xfer_result_alloc;
50 result = wa_nep_create(wa, iface);
51 if (result < 0) {
52 dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n",
53 result);
54 goto error_nep_create;
55 }
56 return 0;
57
58error_nep_create:
59 kfree(wa->xfer_result);
60error_xfer_result_alloc:
61 wa_rpipes_destroy(wa);
62error_rpipes_create:
63 return result;
64}
65EXPORT_SYMBOL_GPL(wa_create);
66
67
68void __wa_destroy(struct wahc *wa)
69{
70 if (wa->dti_urb) {
71 usb_kill_urb(wa->dti_urb);
72 usb_put_urb(wa->dti_urb);
73 usb_kill_urb(wa->buf_in_urb);
74 usb_put_urb(wa->buf_in_urb);
75 }
76 kfree(wa->xfer_result);
77 wa_nep_destroy(wa);
78 wa_rpipes_destroy(wa);
79}
80EXPORT_SYMBOL_GPL(__wa_destroy);
81
82/**
83 * wa_reset_all - reset the WA device
84 * @wa: the WA to be reset
85 *
86 * For HWAs the radio controller and all other PALs are also reset.
87 */
88void wa_reset_all(struct wahc *wa)
89{
90 /* FIXME: assuming HWA. */
91 wusbhc_reset_all(wa->wusb);
92}
93
94MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>");
95MODULE_DESCRIPTION("Wireless USB Wire Adapter core");
96MODULE_LICENSE("GPL");