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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-08-06 12:15:09 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-08-08 07:52:01 +0200
commit71ed79b0e4be0db254640c3beb9a1a0316eb5f61 (patch)
treeaac2f4f0527802478b29c2e7897e56994b6ad759 /drivers/uwb/driver.c
parent7d9c1d2f7aca2651b3821947bf928ee131df102a (diff)
USB: Move wusbcore and UWB to staging as it is obsolete
The UWB and wusbcore code is long obsolete, so let us just move the code out of the real part of the kernel and into the drivers/staging/ location with plans to remove it entirely in a few releases. Link: https://lore.kernel.org/r/20190806101509.GA11280@kroah.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uwb/driver.c')
-rw-r--r--drivers/uwb/driver.c143
1 files changed, 0 insertions, 143 deletions
diff --git a/drivers/uwb/driver.c b/drivers/uwb/driver.c
deleted file mode 100644
index 5755c2e49ffc..000000000000
--- a/drivers/uwb/driver.c
+++ /dev/null
@@ -1,143 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Ultra Wide Band
- * Driver initialization, etc
- *
- * Copyright (C) 2005-2006 Intel Corporation
- * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
- *
- * FIXME: docs
- *
- * Life cycle: FIXME: explain
- *
- * UWB radio controller:
- *
- * 1. alloc a uwb_rc, zero it
- * 2. call uwb_rc_init() on it to set it up + ops (won't do any
- * kind of allocation)
- * 3. register (now it is owned by the UWB stack--deregister before
- * freeing/destroying).
- * 4. It lives on it's own now (UWB stack handles)--when it
- * disconnects, call unregister()
- * 5. free it.
- *
- * Make sure you have a reference to the uwb_rc before calling
- * any of the UWB API functions.
- *
- * TODO:
- *
- * 1. Locking and life cycle management is crappy still. All entry
- * points to the UWB HCD API assume you have a reference on the
- * uwb_rc structure and that it won't go away. They mutex lock it
- * before doing anything.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/kdev_t.h>
-#include <linux/random.h>
-
-#include "uwb-internal.h"
-
-
-/* UWB stack attributes (or 'global' constants) */
-
-
-/**
- * If a beacon disappears for longer than this, then we consider the
- * device who was represented by that beacon to be gone.
- *
- * ECMA-368[17.2.3, last para] establishes that a device must not
- * consider a device to be its neighbour if he doesn't receive a beacon
- * for more than mMaxLostBeacons. mMaxLostBeacons is defined in
- * ECMA-368[17.16] as 3; because we can get only one beacon per
- * superframe, that'd be 3 * 65ms = 195 ~ 200 ms. Let's give it time
- * for jitter and stuff and make it 500 ms.
- */
-unsigned long beacon_timeout_ms = 500;
-
-static
-ssize_t beacon_timeout_ms_show(struct class *class,
- struct class_attribute *attr,
- char *buf)
-{
- return scnprintf(buf, PAGE_SIZE, "%lu\n", beacon_timeout_ms);
-}
-
-static
-ssize_t beacon_timeout_ms_store(struct class *class,
- struct class_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long bt;
- ssize_t result;
- result = sscanf(buf, "%lu", &bt);
- if (result != 1)
- return -EINVAL;
- beacon_timeout_ms = bt;
- return size;
-}
-static CLASS_ATTR_RW(beacon_timeout_ms);
-
-static struct attribute *uwb_class_attrs[] = {
- &class_attr_beacon_timeout_ms.attr,
- NULL,
-};
-ATTRIBUTE_GROUPS(uwb_class);
-
-/** Device model classes */
-struct class uwb_rc_class = {
- .name = "uwb_rc",
- .class_groups = uwb_class_groups,
-};
-
-
-static int __init uwb_subsys_init(void)
-{
- int result = 0;
-
- result = uwb_est_create();
- if (result < 0) {
- printk(KERN_ERR "uwb: Can't initialize EST subsystem\n");
- goto error_est_init;
- }
-
- result = class_register(&uwb_rc_class);
- if (result < 0)
- goto error_uwb_rc_class_register;
-
- /* Register the UWB bus */
- result = bus_register(&uwb_bus_type);
- if (result) {
- pr_err("%s - registering bus driver failed\n", __func__);
- goto exit_bus;
- }
-
- uwb_dbg_init();
- return 0;
-
-exit_bus:
- class_unregister(&uwb_rc_class);
-error_uwb_rc_class_register:
- uwb_est_destroy();
-error_est_init:
- return result;
-}
-module_init(uwb_subsys_init);
-
-static void __exit uwb_subsys_exit(void)
-{
- uwb_dbg_exit();
- bus_unregister(&uwb_bus_type);
- class_unregister(&uwb_rc_class);
- uwb_est_destroy();
- return;
-}
-module_exit(uwb_subsys_exit);
-
-MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>");
-MODULE_DESCRIPTION("Ultra Wide Band core");
-MODULE_LICENSE("GPL");