source: src/linux/universal/linux-3.18/drivers/usb/wusbcore/wa-hc.c @ 31869

Last change on this file since 31869 was 31869, checked in by brainslayer, 2 months ago

update

File size: 2.6 KB
Line 
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 <linux/module.h>
27#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        kernel_ulong_t quirks)
38{
39        int result;
40        struct device *dev = &iface->dev;
41
42        if (iface->cur_altsetting->desc.bNumEndpoints < 3)
43                return -ENODEV;
44
45        result = wa_rpipes_create(wa);
46        if (result < 0)
47                goto error_rpipes_create;
48        wa->quirks = quirks;
49        /* Fill up Data Transfer EP pointers */
50        wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc;
51        wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
52        wa->dti_buf_size = usb_endpoint_maxp(wa->dti_epd);
53        wa->dti_buf = kmalloc(wa->dti_buf_size, GFP_KERNEL);
54        if (wa->dti_buf == NULL) {
55                result = -ENOMEM;
56                goto error_dti_buf_alloc;
57        }
58        result = wa_nep_create(wa, iface);
59        if (result < 0) {
60                dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n",
61                        result);
62                goto error_nep_create;
63        }
64        return 0;
65
66error_nep_create:
67        kfree(wa->dti_buf);
68error_dti_buf_alloc:
69        wa_rpipes_destroy(wa);
70error_rpipes_create:
71        return result;
72}
73EXPORT_SYMBOL_GPL(wa_create);
74
75
76void __wa_destroy(struct wahc *wa)
77{
78        if (wa->dti_urb) {
79                usb_kill_urb(wa->dti_urb);
80                usb_put_urb(wa->dti_urb);
81        }
82        kfree(wa->dti_buf);
83        wa_nep_destroy(wa);
84        wa_rpipes_destroy(wa);
85}
86EXPORT_SYMBOL_GPL(__wa_destroy);
87
88/**
89 * wa_reset_all - reset the WA device
90 * @wa: the WA to be reset
91 *
92 * For HWAs the radio controller and all other PALs are also reset.
93 */
94void wa_reset_all(struct wahc *wa)
95{
96        /* FIXME: assuming HWA. */
97        wusbhc_reset_all(wa->wusb);
98}
99
100MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>");
101MODULE_DESCRIPTION("Wireless USB Wire Adapter core");
102MODULE_LICENSE("GPL");
Note: See TracBrowser for help on using the repository browser.