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 */
wa_create(struct wahc * wa,struct usb_interface * iface)36 int 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;
47 wa->xfer_result_size = usb_endpoint_maxp(wa->dti_epd);
48 wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
49 if (wa->xfer_result == NULL)
50 goto error_xfer_result_alloc;
51 result = wa_nep_create(wa, iface);
52 if (result < 0) {
53 dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n",
54 result);
55 goto error_nep_create;
56 }
57 return 0;
58
59 error_nep_create:
60 kfree(wa->xfer_result);
61 error_xfer_result_alloc:
62 wa_rpipes_destroy(wa);
63 error_rpipes_create:
64 return result;
65 }
66 EXPORT_SYMBOL_GPL(wa_create);
67
68
__wa_destroy(struct wahc * wa)69 void __wa_destroy(struct wahc *wa)
70 {
71 if (wa->dti_urb) {
72 usb_kill_urb(wa->dti_urb);
73 usb_put_urb(wa->dti_urb);
74 usb_kill_urb(wa->buf_in_urb);
75 usb_put_urb(wa->buf_in_urb);
76 }
77 kfree(wa->xfer_result);
78 wa_nep_destroy(wa);
79 wa_rpipes_destroy(wa);
80 }
81 EXPORT_SYMBOL_GPL(__wa_destroy);
82
83 /**
84 * wa_reset_all - reset the WA device
85 * @wa: the WA to be reset
86 *
87 * For HWAs the radio controller and all other PALs are also reset.
88 */
wa_reset_all(struct wahc * wa)89 void wa_reset_all(struct wahc *wa)
90 {
91 /* FIXME: assuming HWA. */
92 wusbhc_reset_all(wa->wusb);
93 }
94
95 MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>");
96 MODULE_DESCRIPTION("Wireless USB Wire Adapter core");
97 MODULE_LICENSE("GPL");
98