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,kernel_ulong_t quirks)36 int 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
66 error_nep_create:
67 kfree(wa->dti_buf);
68 error_dti_buf_alloc:
69 wa_rpipes_destroy(wa);
70 error_rpipes_create:
71 return result;
72 }
73 EXPORT_SYMBOL_GPL(wa_create);
74
75
__wa_destroy(struct wahc * wa)76 void __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 }
86 EXPORT_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 */
wa_reset_all(struct wahc * wa)94 void wa_reset_all(struct wahc *wa)
95 {
96 /* FIXME: assuming HWA. */
97 wusbhc_reset_all(wa->wusb);
98 }
99
100 MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>");
101 MODULE_DESCRIPTION("Wireless USB Wire Adapter core");
102 MODULE_LICENSE("GPL");
103