1 /*
2 * Copyright (c) 2018-2020 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 * DOC: define utility API related to the DISA component
20 * called by other components
21 */
22
23 #include "wlan_disa_obj_mgmt_api.h"
24 #include "wlan_disa_main.h"
25 #include "target_if_disa.h"
26 #include "wlan_disa_tgt_api.h"
27 #include "wlan_objmgr_global_obj.h"
28
29 /**
30 * disa_init() - register disa notification handlers.
31 *
32 * This function registers disa related notification handlers and
33 * allocates disa context.
34 *
35 * Return: QDF_STATUS_SUCCESS - in case of success else return error
36 */
disa_init(void)37 QDF_STATUS disa_init(void)
38 {
39 QDF_STATUS status;
40
41 DISA_ENTER();
42
43 if (disa_allocate_ctx() != QDF_STATUS_SUCCESS) {
44 disa_err("unable to allocate disa ctx");
45 status = QDF_STATUS_E_FAULT;
46 goto out;
47 }
48
49 status = wlan_objmgr_register_psoc_create_handler(
50 WLAN_UMAC_COMP_DISA,
51 disa_psoc_object_created_notification,
52 NULL);
53 if (status != QDF_STATUS_SUCCESS) {
54 disa_err("unable to register psoc create handler");
55 goto err_free_ctx;
56 }
57
58 status = wlan_objmgr_register_psoc_destroy_handler(
59 WLAN_UMAC_COMP_DISA,
60 disa_psoc_object_destroyed_notification,
61 NULL);
62 if (status != QDF_STATUS_SUCCESS) {
63 disa_err("unable to register psoc destroy handler");
64 wlan_objmgr_unregister_psoc_create_handler(
65 WLAN_UMAC_COMP_DISA,
66 disa_psoc_object_created_notification,
67 NULL);
68 } else {
69 goto out;
70 }
71
72 err_free_ctx:
73 disa_free_ctx();
74 out:
75 DISA_EXIT();
76
77 return status;
78 }
79
80 /**
81 * disa_deinit() - unregister disa notification handlers.
82 *
83 * This function unregisters disa related notification handlers and
84 * frees disa context.
85 *
86 * Return: QDF_STATUS_SUCCESS - in case of success else return error
87 */
disa_deinit(void)88 QDF_STATUS disa_deinit(void)
89 {
90 QDF_STATUS status;
91
92 DISA_ENTER();
93 status = wlan_objmgr_unregister_psoc_destroy_handler(
94 WLAN_UMAC_COMP_DISA,
95 disa_psoc_object_destroyed_notification,
96 NULL);
97 if (status != QDF_STATUS_SUCCESS)
98 disa_err("unable to unregister psoc create handle");
99
100 status = wlan_objmgr_unregister_psoc_create_handler(
101 WLAN_UMAC_COMP_DISA,
102 disa_psoc_object_created_notification,
103 NULL);
104 if (status != QDF_STATUS_SUCCESS)
105 disa_err("unable to unregister psoc create handle");
106
107 disa_free_ctx();
108 DISA_EXIT();
109
110 return status;
111 }
112
113 /**
114 * disa_psoc_object_created_notification(): disa psoc create handler
115 * @psoc: psoc which is going to created by objmgr
116 * @arg: argument for psoc create handler
117 *
118 * Attach psoc private object, register rx/tx ops and event handlers
119 *
120 * Return QDF_STATUS status in case of success else return error
121 */
disa_psoc_object_created_notification(struct wlan_objmgr_psoc * psoc,void * arg)122 QDF_STATUS disa_psoc_object_created_notification(
123 struct wlan_objmgr_psoc *psoc, void *arg)
124 {
125 struct disa_psoc_priv_obj *disa_priv;
126 QDF_STATUS status;
127
128 DISA_ENTER();
129
130 disa_priv = qdf_mem_malloc(sizeof(*disa_priv));
131 if (!disa_priv) {
132 status = QDF_STATUS_E_NOMEM;
133 goto out;
134 }
135
136 status = wlan_objmgr_psoc_component_obj_attach(psoc,
137 WLAN_UMAC_COMP_DISA,
138 (void *)disa_priv, QDF_STATUS_SUCCESS);
139 if (status != QDF_STATUS_SUCCESS) {
140 disa_err("Failed to attach disa_priv with psoc");
141 qdf_mem_free(disa_priv);
142 goto out;
143 }
144
145 qdf_spinlock_create(&disa_priv->lock);
146 target_if_disa_register_tx_ops(&disa_priv->disa_tx_ops);
147
148 out:
149 DISA_EXIT();
150
151 return status;
152 }
153
154 /**
155 * disa_psoc_object_destroyed_notification(): disa psoc destroy handler
156 * @psoc: objmgr object corresponding to psoc which is going to be destroyed
157 * @arg: argument for psoc destroy handler
158 *
159 * Detach and free psoc private object, unregister event handlers
160 *
161 * Return QDF_STATUS status in case of success else return error
162 */
disa_psoc_object_destroyed_notification(struct wlan_objmgr_psoc * psoc,void * arg)163 QDF_STATUS disa_psoc_object_destroyed_notification(
164 struct wlan_objmgr_psoc *psoc, void *arg)
165 {
166 struct disa_psoc_priv_obj *disa_priv = NULL;
167 QDF_STATUS status = QDF_STATUS_SUCCESS;
168
169 DISA_ENTER();
170
171 disa_priv = disa_psoc_get_priv(psoc);
172
173 status = wlan_objmgr_psoc_component_obj_detach(psoc,
174 WLAN_UMAC_COMP_DISA,
175 (void *)disa_priv);
176
177 if (status != QDF_STATUS_SUCCESS)
178 disa_err("Failed to detach disa_priv with psoc");
179
180 qdf_spinlock_destroy(&disa_priv->lock);
181 qdf_mem_free(disa_priv);
182 DISA_EXIT();
183
184 return status;
185 }
186
187 /**
188 * disa_psoc_enable() - Trigger psoc enable for DISA
189 * @psoc: objmgr psoc object
190 *
191 * Return: QDF status success or failure
192 */
disa_psoc_enable(struct wlan_objmgr_psoc * psoc)193 QDF_STATUS disa_psoc_enable(struct wlan_objmgr_psoc *psoc)
194 {
195 return tgt_disa_register_ev_handlers(psoc);
196 }
197
198 /**
199 * disa_psoc_disable() - Trigger psoc disable for DISA
200 * @psoc: objmgr psoc object
201 *
202 * Return: QDF status success or failure
203 */
disa_psoc_disable(struct wlan_objmgr_psoc * psoc)204 QDF_STATUS disa_psoc_disable(struct wlan_objmgr_psoc *psoc)
205 {
206 return tgt_disa_unregister_ev_handlers(psoc);
207
208 }
209
210