1 /*
2 * Copyright (c) 2017, 2020 The Linux Foundation. All rights reserved.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for
5 * any purpose with or without fee is hereby granted, provided that the
6 * above copyright notice and this permission notice appear in all
7 * copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
10 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
11 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
12 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
15 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
16 * PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 /**
20 * DOC: wma_fips_api.c
21 *
22 * WLAN Host Device Driver FIPS Certification Feature
23 */
24
25 #include "wma.h"
26 #include "wma_fips_api.h"
27 #include "wmi_unified_api.h"
28
29 static wma_fips_cb fips_callback;
30 static void *fips_context;
31
32 static int
wma_fips_event_handler(void * handle,uint8_t * event,uint32_t len)33 wma_fips_event_handler(void *handle, uint8_t *event, uint32_t len)
34 {
35 tp_wma_handle wma_handle;
36 wmi_unified_t wmi_handle;
37 struct wmi_host_fips_event_param param;
38 wma_fips_cb callback;
39 QDF_STATUS status;
40
41 wma_handle = handle;
42 if (wma_validate_handle(wma_handle))
43 return QDF_STATUS_E_INVAL;
44
45 wmi_handle = wma_handle->wmi_handle;
46 if (wmi_validate_handle(wmi_handle))
47 return QDF_STATUS_E_INVAL;
48
49 status = wmi_extract_fips_event_data(wmi_handle, event, ¶m);
50
51 wma_info("Received FIPS event, pdev:%u status:%u data_len:%u",
52 param.pdev_id, param.error_status, param.data_len);
53
54 /* make sure extraction error is propagated to upper layers */
55 if (QDF_IS_STATUS_ERROR(status))
56 param.error_status = FIPS_ERROR_OPER_TIMEOUT;
57
58 callback = fips_callback;
59 fips_callback = NULL;
60 if (callback)
61 callback(fips_context, ¶m);
62
63 return 0;
64 }
65
wma_fips_request(WMA_HANDLE handle,struct fips_params * param,wma_fips_cb callback,void * context)66 QDF_STATUS wma_fips_request(WMA_HANDLE handle,
67 struct fips_params *param,
68 wma_fips_cb callback,
69 void *context)
70 {
71 tp_wma_handle wma_handle = handle;
72 wmi_unified_t wmi_handle;
73 QDF_STATUS status;
74
75 if (wma_validate_handle(wma_handle))
76 return QDF_STATUS_E_INVAL;
77
78 wmi_handle = wma_handle->wmi_handle;
79 if (wmi_validate_handle(wmi_handle))
80 return QDF_STATUS_E_INVAL;
81
82 fips_callback = callback;
83 fips_context = context;
84 status = wmi_unified_pdev_fips_cmd_send(wmi_handle, param);
85 if (QDF_IS_STATUS_ERROR(status)) {
86 wma_err("wmi_unified_pdev_fips_cmd_send() error: %u",
87 status);
88 fips_callback = NULL;
89 }
90
91 return status;
92 }
93
wma_fips_register_event_handlers(WMA_HANDLE handle)94 QDF_STATUS wma_fips_register_event_handlers(WMA_HANDLE handle)
95 {
96 tp_wma_handle wma_handle = handle;
97
98 return wmi_unified_register_event_handler(wma_handle->wmi_handle,
99 wmi_pdev_fips_event_id,
100 wma_fips_event_handler,
101 WMA_RX_WORK_CTX);
102 }
103