1 /*
2 * Copyright (c) 2020-2021 The Linux Foundation. All rights reserved.
3 * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for
6 * any purpose with or without fee is hereby granted, provided that the
7 * above copyright notice and this permission notice appear in all
8 * copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17 * PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 /**
21 * DOC: wlan_hdd_sysfs_reassoc.c
22 *
23 * implementation for creating sysfs file reassoc
24 */
25
26 #include <wlan_hdd_includes.h>
27 #include "osif_vdev_sync.h"
28 #include "wlan_hdd_sysfs_reassoc.h"
29 #include "wlan_cm_roam_ucfg_api.h"
30
31 static ssize_t
__wlan_hdd_store_reassoc_sysfs(struct net_device * net_dev,char const * buf,size_t count)32 __wlan_hdd_store_reassoc_sysfs(struct net_device *net_dev, char const *buf,
33 size_t count)
34 {
35 struct hdd_adapter *adapter = netdev_priv(net_dev);
36 struct hdd_context *hdd_ctx;
37 mac_handle_t mac_handle;
38 uint32_t operating_ch;
39 int ret;
40 struct qdf_mac_addr target_bssid;
41
42 if (hdd_validate_adapter(adapter))
43 return -EINVAL;
44
45 hdd_ctx = WLAN_HDD_GET_CTX(adapter);
46 ret = wlan_hdd_validate_context(hdd_ctx);
47 if (ret != 0)
48 return ret;
49
50 if (!wlan_hdd_validate_modules_state(hdd_ctx))
51 return -EINVAL;
52
53 mac_handle = hdd_ctx->mac_handle;
54 operating_ch = wlan_get_operation_chan_freq(adapter->deflink->vdev);
55 wlan_mlme_get_bssid_vdev_id(hdd_ctx->pdev, adapter->deflink->vdev_id,
56 &target_bssid);
57 hdd_debug("reassoc: net_devname %s", net_dev->name);
58 ucfg_wlan_cm_roam_invoke(hdd_ctx->pdev, adapter->deflink->vdev_id,
59 &target_bssid, operating_ch, CM_ROAMING_USER);
60
61 return count;
62 }
63
wlan_hdd_store_reassoc_sysfs(struct device * dev,struct device_attribute * attr,char const * buf,size_t count)64 static ssize_t wlan_hdd_store_reassoc_sysfs(struct device *dev,
65 struct device_attribute *attr,
66 char const *buf, size_t count)
67 {
68 struct net_device *net_dev = container_of(dev, struct net_device, dev);
69 struct osif_vdev_sync *vdev_sync;
70 ssize_t err_size;
71
72 err_size = osif_vdev_sync_op_start(net_dev, &vdev_sync);
73 if (err_size)
74 return err_size;
75
76 err_size = __wlan_hdd_store_reassoc_sysfs(net_dev, buf, count);
77
78 osif_vdev_sync_op_stop(vdev_sync);
79
80 return err_size;
81 }
82
83 static DEVICE_ATTR(reassoc, 0220,
84 NULL, wlan_hdd_store_reassoc_sysfs);
85
hdd_sysfs_reassoc_create(struct hdd_adapter * adapter)86 int hdd_sysfs_reassoc_create(struct hdd_adapter *adapter)
87 {
88 int error;
89
90 error = device_create_file(&adapter->dev->dev, &dev_attr_reassoc);
91 if (error)
92 hdd_err("could not create reassoc sysfs file");
93
94 return error;
95 }
96
hdd_sysfs_reassoc_destroy(struct hdd_adapter * adapter)97 void hdd_sysfs_reassoc_destroy(struct hdd_adapter *adapter)
98 {
99 device_remove_file(&adapter->dev->dev, &dev_attr_reassoc);
100 }
101