blob: a09b65ebd9bb712d02060e760ff2c349bcdc2e77 [file] [log] [blame]
Inaky Perez-Gonzalezdf365422008-09-17 16:34:29 +01001/*
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 */
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090025#include <linux/slab.h>
Paul Gortmaker6eb0de82011-07-03 16:09:31 -040026#include <linux/module.h>
Inaky Perez-Gonzalezdf365422008-09-17 16:34:29 +010027#include "wusbhc.h"
28#include "wa-hc.h"
29
30/**
31 * Assumes
32 *
33 * wa->usb_dev and wa->usb_iface initialized and refcounted,
34 * wa->wa_descr initialized.
35 */
36int wa_create(struct wahc *wa, struct usb_interface *iface)
37{
38 int result;
39 struct device *dev = &iface->dev;
40
41 result = wa_rpipes_create(wa);
42 if (result < 0)
43 goto error_rpipes_create;
44 /* Fill up Data Transfer EP pointers */
45 wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc;
46 wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
Kuninori Morimoto29cc8892011-08-23 03:12:03 -070047 wa->xfer_result_size = usb_endpoint_maxp(wa->dti_epd);
Inaky Perez-Gonzalezdf365422008-09-17 16:34:29 +010048 wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
Julia Lawallfd4d72c2012-08-14 08:47:36 +020049 if (wa->xfer_result == NULL) {
50 result = -ENOMEM;
Inaky Perez-Gonzalezdf365422008-09-17 16:34:29 +010051 goto error_xfer_result_alloc;
Julia Lawallfd4d72c2012-08-14 08:47:36 +020052 }
Inaky Perez-Gonzalezdf365422008-09-17 16:34:29 +010053 result = wa_nep_create(wa, iface);
54 if (result < 0) {
55 dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n",
56 result);
57 goto error_nep_create;
58 }
59 return 0;
60
61error_nep_create:
62 kfree(wa->xfer_result);
63error_xfer_result_alloc:
64 wa_rpipes_destroy(wa);
65error_rpipes_create:
66 return result;
67}
68EXPORT_SYMBOL_GPL(wa_create);
69
70
71void __wa_destroy(struct wahc *wa)
72{
73 if (wa->dti_urb) {
74 usb_kill_urb(wa->dti_urb);
75 usb_put_urb(wa->dti_urb);
76 usb_kill_urb(wa->buf_in_urb);
77 usb_put_urb(wa->buf_in_urb);
78 }
79 kfree(wa->xfer_result);
80 wa_nep_destroy(wa);
81 wa_rpipes_destroy(wa);
82}
83EXPORT_SYMBOL_GPL(__wa_destroy);
84
85/**
86 * wa_reset_all - reset the WA device
87 * @wa: the WA to be reset
88 *
89 * For HWAs the radio controller and all other PALs are also reset.
90 */
91void wa_reset_all(struct wahc *wa)
92{
93 /* FIXME: assuming HWA. */
94 wusbhc_reset_all(wa->wusb);
95}
96
97MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>");
98MODULE_DESCRIPTION("Wireless USB Wire Adapter core");
99MODULE_LICENSE("GPL");