projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0 |
| df365423 IPG |
2 | /* |
| 3 | * Wire Adapter Host Controller Driver | |
| 4 | * Common items to HWA and DWA based HCDs | |
| 5 | * | |
| 6 | * Copyright (C) 2005-2006 Intel Corporation | |
| 7 | * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> | |
| 8 | * | |
| df365423 IPG |
9 | * FIXME: docs |
| 10 | */ | |
| 5a0e3ad6 | 11 | #include <linux/slab.h> |
| 6eb0de82 | 12 | #include <linux/module.h> |
| df365423 IPG |
13 | #include "wusbhc.h" |
| 14 | #include "wa-hc.h" | |
| 15 | ||
| 16 | /** | |
| 17 | * Assumes | |
| 18 | * | |
| 19 | * wa->usb_dev and wa->usb_iface initialized and refcounted, | |
| 20 | * wa->wa_descr initialized. | |
| 21 | */ | |
| f07ddb9e TP |
22 | int wa_create(struct wahc *wa, struct usb_interface *iface, |
| 23 | kernel_ulong_t quirks) | |
| df365423 IPG |
24 | { |
| 25 | int result; | |
| 26 | struct device *dev = &iface->dev; | |
| 27 | ||
| 03ace948 JH |
28 | if (iface->cur_altsetting->desc.bNumEndpoints < 3) |
| 29 | return -ENODEV; | |
| 30 | ||
| df365423 IPG |
31 | result = wa_rpipes_create(wa); |
| 32 | if (result < 0) | |
| 33 | goto error_rpipes_create; | |
| f07ddb9e | 34 | wa->quirks = quirks; |
| df365423 IPG |
35 | /* Fill up Data Transfer EP pointers */ |
| 36 | wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc; | |
| 37 | wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc; | |
| 0367eef2 TP |
38 | wa->dti_buf_size = usb_endpoint_maxp(wa->dti_epd); |
| 39 | wa->dti_buf = kmalloc(wa->dti_buf_size, GFP_KERNEL); | |
| 40 | if (wa->dti_buf == NULL) { | |
| fd4d72cb | 41 | result = -ENOMEM; |
| 0367eef2 | 42 | goto error_dti_buf_alloc; |
| fd4d72cb | 43 | } |
| df365423 IPG |
44 | result = wa_nep_create(wa, iface); |
| 45 | if (result < 0) { | |
| 46 | dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n", | |
| 47 | result); | |
| 48 | goto error_nep_create; | |
| 49 | } | |
| 50 | return 0; | |
| 51 | ||
| 52 | error_nep_create: | |
| 0367eef2 TP |
53 | kfree(wa->dti_buf); |
| 54 | error_dti_buf_alloc: | |
| df365423 IPG |
55 | wa_rpipes_destroy(wa); |
| 56 | error_rpipes_create: | |
| 57 | return result; | |
| 58 | } | |
| 59 | EXPORT_SYMBOL_GPL(wa_create); | |
| 60 | ||
| 61 | ||
| 62 | void __wa_destroy(struct wahc *wa) | |
| 63 | { | |
| 64 | if (wa->dti_urb) { | |
| 65 | usb_kill_urb(wa->dti_urb); | |
| 66 | usb_put_urb(wa->dti_urb); | |
| df365423 | 67 | } |
| 0367eef2 | 68 | kfree(wa->dti_buf); |
| df365423 IPG |
69 | wa_nep_destroy(wa); |
| 70 | wa_rpipes_destroy(wa); | |
| 71 | } | |
| 72 | EXPORT_SYMBOL_GPL(__wa_destroy); | |
| 73 | ||
| 74 | /** | |
| 75 | * wa_reset_all - reset the WA device | |
| 76 | * @wa: the WA to be reset | |
| 77 | * | |
| 78 | * For HWAs the radio controller and all other PALs are also reset. | |
| 79 | */ | |
| 80 | void wa_reset_all(struct wahc *wa) | |
| 81 | { | |
| 82 | /* FIXME: assuming HWA. */ | |
| 83 | wusbhc_reset_all(wa->wusb); | |
| 84 | } | |
| 85 | ||
| 86 | MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); | |
| 87 | MODULE_DESCRIPTION("Wireless USB Wire Adapter core"); | |
| 88 | MODULE_LICENSE("GPL"); |