1 /*
2 * Copyright (c) 2011-2020 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 any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 /**
19 * DOC: wlan_hdd_sysfs_txrx_fw_st_rst.c
20 *
21 * implementation for creating sysfs file txrx_fw_st_rst
22 */
23
24 #include <wlan_hdd_includes.h>
25 #include "osif_vdev_sync.h"
26 #include <wlan_hdd_sysfs.h>
27 #include <wlan_hdd_sysfs_txrx_fw_st_rst.h>
28 #include "wma.h"
29 #include "wma_api.h"
30
hdd_sysfs_set_vdev(struct hdd_adapter * adapter,int id,const char * id_string,int value)31 static int hdd_sysfs_set_vdev(struct hdd_adapter *adapter,
32 int id, const char *id_string,
33 int value)
34 {
35 int errno;
36
37 hdd_debug("%s %d", id_string, value);
38 errno = wma_cli_set_command(adapter->deflink->vdev_id,
39 id, value, VDEV_CMD);
40 if (errno)
41 hdd_err("Failed to set firmware, errno %d", errno);
42
43 return errno;
44 }
45
46 #define hdd_sysfs_set_vdev(adapter, id, value) \
47 hdd_sysfs_set_vdev(adapter, id, #id, value)
48
49 static ssize_t
__hdd_sysfs_txrx_fw_st_rst_store(struct net_device * net_dev,char const * buf,size_t count)50 __hdd_sysfs_txrx_fw_st_rst_store(struct net_device *net_dev,
51 char const *buf, size_t count)
52 {
53 struct hdd_adapter *adapter = netdev_priv(net_dev);
54 char buf_local[MAX_SYSFS_USER_COMMAND_SIZE_LENGTH + 1];
55 struct hdd_context *hdd_ctx;
56 char *sptr, *token;
57 uint32_t value;
58 int ret;
59
60 if (hdd_validate_adapter(adapter))
61 return -EINVAL;
62
63 hdd_ctx = WLAN_HDD_GET_CTX(adapter);
64 ret = wlan_hdd_validate_context(hdd_ctx);
65 if (ret != 0)
66 return ret;
67
68 if (!wlan_hdd_validate_modules_state(hdd_ctx))
69 return -EINVAL;
70
71 ret = hdd_sysfs_validate_and_copy_buf(buf_local, sizeof(buf_local),
72 buf, count);
73
74 if (ret) {
75 hdd_err_rl("invalid input");
76 return ret;
77 }
78
79 sptr = buf_local;
80 hdd_debug("txrx_fw_st_rst: count %zu buf_local:(%s) net_devname %s",
81 count, buf_local, net_dev->name);
82
83 /* Get value */
84 token = strsep(&sptr, " ");
85 if (!token)
86 return -EINVAL;
87 if (kstrtou32(token, 0, &value))
88 return -EINVAL;
89
90 ret = hdd_sysfs_set_vdev(adapter,
91 WMA_VDEV_TXRX_FWSTATS_RESET_CMDID, value);
92
93 if (ret) {
94 hdd_err_rl("failed to set txrx fw stats reset: %d", ret);
95 return ret;
96 }
97
98 return count;
99 }
100
101 static ssize_t
hdd_sysfs_txrx_fw_st_rst_store(struct device * dev,struct device_attribute * attr,char const * buf,size_t count)102 hdd_sysfs_txrx_fw_st_rst_store(struct device *dev,
103 struct device_attribute *attr,
104 char const *buf, size_t count)
105 {
106 struct net_device *net_dev = container_of(dev, struct net_device, dev);
107 struct osif_vdev_sync *vdev_sync;
108 ssize_t errno_size;
109
110 errno_size = osif_vdev_sync_op_start(net_dev, &vdev_sync);
111 if (errno_size)
112 return errno_size;
113
114 errno_size = __hdd_sysfs_txrx_fw_st_rst_store(net_dev, buf, count);
115
116 osif_vdev_sync_op_stop(vdev_sync);
117
118 return errno_size;
119 }
120
121 static DEVICE_ATTR(txrx_fw_st_rst, 0220,
122 NULL, hdd_sysfs_txrx_fw_st_rst_store);
123
hdd_sysfs_txrx_fw_st_rst_create(struct hdd_adapter * adapter)124 int hdd_sysfs_txrx_fw_st_rst_create(struct hdd_adapter *adapter)
125 {
126 int error;
127
128 error = device_create_file(&adapter->dev->dev,
129 &dev_attr_txrx_fw_st_rst);
130 if (error)
131 hdd_err("could not create txrx_fw_st_rst sysfs file");
132
133 return error;
134 }
135
hdd_sysfs_txrx_fw_st_rst_destroy(struct hdd_adapter * adapter)136 void hdd_sysfs_txrx_fw_st_rst_destroy(struct hdd_adapter *adapter)
137 {
138 device_remove_file(&adapter->dev->dev, &dev_attr_txrx_fw_st_rst);
139 }
140