* INTC Contribution to the O-RAN F Release for O-DU Low
[o-du/phy.git] / fapi_5g / source / api / fapi2mac / p5 / nr5g_fapi_proc_stop_ind.c
1 /******************************************************************************
2 *
3 *   Copyright (c) 2021 Intel.
4 *
5 *   Licensed under the Apache License, Version 2.0 (the "License");
6 *   you may not use this file except in compliance with the License.
7 *   You may obtain a copy of the License at
8 *
9 *       http://www.apache.org/licenses/LICENSE-2.0
10 *
11 *   Unless required by applicable law or agreed to in writing, software
12 *   distributed under the License is distributed on an "AS IS" BASIS,
13 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 *   See the License for the specific language governing permissions and
15 *   limitations under the License.
16 *
17 *******************************************************************************/
18
19 /**
20  * @file
21  * This file consist of implementation of FAPI STOP.indication message.
22  *
23  **/
24
25 #include "nr5g_fapi_framework.h"
26 #include "nr5g_fapi_fapi2mac_api.h"
27 #include "nr5g_fapi_fapi2phy_api.h"
28 #include "nr5g_fapi_fapi2mac_p5_proc.h"
29 #include "nr5g_fapi_fapi2phy_p5_proc.h"
30 #include "nr5g_fapi_fapi2phy_p5_pvt_proc.h"
31
32 /** @ingroup group_source_api_p5_fapi2mac_proc
33  *
34  *  @param[in]  p_phy_ctx Pointer to PHY context.
35  *  @param[in]  p_fapi_resp Pointer to IAPI STOP.indication message structure.
36  *  @return     Returns ::SUCCESS and ::FAILURE.
37  *
38  *  @description
39  *  This message allows PHY to indicate that it has successfully stopped
40  *  and returned to the CONFIGURED state. 
41  *
42 **/
43 uint8_t nr5g_fapi_stop_indication(
44     p_nr5g_fapi_phy_ctx_t p_phy_ctx,
45     PSTOPRESPONSEStruct p_iapi_resp)
46 {
47     uint8_t phy_id;
48
49     fapi_error_ind_t *p_fapi_error_ind;
50     p_fapi_api_queue_elem_t p_list_elem;
51     p_nr5g_fapi_phy_instance_t p_phy_instance = NULL;
52     nr5g_fapi_stats_t *p_stats;
53
54     if (NULL == p_phy_ctx) {
55         NR5G_FAPI_LOG(ERROR_LOG, ("[STOP.indication] Invalid " "phy context"));
56         return FAILURE;
57     }
58
59     if (NULL == p_iapi_resp) {
60         NR5G_FAPI_LOG(ERROR_LOG, ("[STOP.indication] Invalid "
61                 "stop response message"));
62         return FAILURE;
63     }
64
65     phy_id = p_iapi_resp->sSFN_Slot.nCarrierIdx;
66     p_phy_instance = &p_phy_ctx->phy_instance[phy_id];
67     if (p_phy_instance->phy_id != phy_id) {
68         NR5G_FAPI_LOG(ERROR_LOG, ("[STOP.indication] Invalid " "phy instance"));
69         return FAILURE;
70     }
71
72     p_stats = &p_phy_instance->stats;
73     p_stats->iapi_stats.iapi_stop_ind++;
74     if (SUCCESS == p_iapi_resp->nStatus) {
75         if (FAPI_STATE_RUNNING == p_phy_instance->state) {
76             p_phy_instance->state = FAPI_STATE_CONFIGURED;
77         }
78 #ifdef DEBUG_MODE
79         p_list_elem =
80             nr5g_fapi_fapi2mac_create_api_list_elem(FAPI_STOP_INDICATION, 1,
81             sizeof(fapi_stop_ind_t));
82         if (!p_list_elem) {
83             NR5G_FAPI_LOG(ERROR_LOG, ("[STOP.indication] Unable to create "
84                     "list element. Out of memory!!!"));
85             return FAILURE;
86         }
87         fapi_stop_ind_t *p_fapi_resp;
88         p_fapi_resp = (fapi_stop_ind_t *) (p_list_elem + 1);
89         p_fapi_resp->header.msg_id = FAPI_STOP_INDICATION;
90         p_fapi_resp->header.length = (uint16_t) sizeof(fapi_stop_ind_t);
91         /* Add element to send list */
92         nr5g_fapi_fapi2mac_add_api_to_list(phy_id, p_list_elem, false);
93         p_stats->fapi_stats.fapi_stop_ind++;
94         NR5G_FAPI_LOG(INFO_LOG, ("[STOP.indication][%d]", phy_id));
95 #else
96         fapi_vendor_ext_shutdown_req_t fapi_req;
97         fapi_req.header.msg_id = FAPI_VENDOR_EXT_SHUTDOWN_REQUEST;
98         fapi_req.header.length = sizeof(fapi_vendor_ext_shutdown_req_t);
99         fapi_req.sfn = 0;
100         fapi_req.slot = 0;
101         fapi_req.test_type = 0;
102         nr5g_fapi_shutdown_request(0, p_phy_instance, &fapi_req);
103         nr5g_fapi_fapi2phy_send_api_list(0);
104 #endif
105     } else if (FAILURE == p_iapi_resp->nStatus) {
106         p_list_elem =
107             nr5g_fapi_fapi2mac_create_api_list_elem(FAPI_ERROR_INDICATION, 1,
108             sizeof(fapi_error_ind_t));
109         if (!p_list_elem) {
110             NR5G_FAPI_LOG(ERROR_LOG, ("[STOP.indication] Unable to create "
111                     "list element. Out of memory!!!"));
112             return FAILURE;
113         }
114
115         /* PHY STOP Failed. Sending Error Indication to MAC */
116         p_fapi_error_ind = (fapi_error_ind_t *) (p_list_elem + 1);
117         p_fapi_error_ind->header.msg_id = FAPI_ERROR_INDICATION;
118         p_fapi_error_ind->header.length = (uint16_t) sizeof(fapi_error_ind_t);
119         p_fapi_error_ind->sfn = p_iapi_resp->sSFN_Slot.nSFN;
120         p_fapi_error_ind->slot = p_iapi_resp->sSFN_Slot.nSlot;
121         p_fapi_error_ind->message_id = FAPI_STOP_REQUEST;
122         p_fapi_error_ind->error_code = p_iapi_resp->nStatus;
123         /* Add element to send list */
124         nr5g_fapi_fapi2mac_add_api_to_list(phy_id, p_list_elem, false);
125         p_stats->fapi_stats.fapi_error_ind++;
126         NR5G_FAPI_LOG(INFO_LOG, ("[STOP.indication][ERROR.indication][%d]",
127                 phy_id));
128     } else {
129         NR5G_FAPI_LOG(ERROR_LOG, ("[STOP.indication] Invalid status "
130                 "from PHY"));
131         return FAILURE;
132     }
133     return SUCCESS;
134 }