1 /******************************************************************************
2 *
3 * This is the AVRC call-out function implementation for BTC.
4 *
5 ******************************************************************************/
6 // Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
7 //
8 // Licensed under the Apache License, Version 2.0 (the "License");
9 // you may not use this file except in compliance with the License.
10 // You may obtain a copy of the License at
11
12 // http://www.apache.org/licenses/LICENSE-2.0
13 //
14 // Unless required by applicable law or agreed to in writing, software
15 // distributed under the License is distributed on an "AS IS" BASIS,
16 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 // See the License for the specific language governing permissions and
18 // limitations under the License.
19
20 /*****************************************************************************
21 *
22 * Filename: bta_avrc_co.c
23 *
24 * Description: Bluetooth AVRC implementation
25 *
26 *****************************************************************************/
27
28 #include <stdint.h>
29 #include "common/bt_target.h"
30 #include "bta/bta_sys.h"
31 #include "bta/bta_av_api.h"
32 #include "btc_avrc.h"
33
34 #if BTC_AV_INCLUDED
35 /*******************************************************************************
36 **
37 ** Function bta_avrc_co_cmd_allowed
38 **
39 ** Description Check if local AVRCP TG configuration supports a specific
40 ** PASSTHROUGH command with the given operation_id
41 **
42 ** Returns TRUE if operation_id is supported, FALSE otherwise
43 **
44 *******************************************************************************/
bta_avrc_co_cmd_allowed(tBTA_AV_RC rc_id)45 BOOLEAN bta_avrc_co_cmd_allowed(tBTA_AV_RC rc_id)
46 {
47 if (rc_id >= BTA_AV_VENDOR) {
48 return FALSE;
49 }
50 const uint16_t *rc_cmd = btc_avrc_tg_get_supported_command();
51 if (rc_cmd[rc_id >> 4] & ((uint16_t)1 << (rc_id & 0x0F))) {
52 return TRUE;
53 } else {
54 return FALSE;
55 }
56 }
57
58 /*******************************************************************************
59 **
60 ** Function bta_avrc_co_rn_evt_cap
61 **
62 ** Description get the event notifcation capabilities on AVRCP target
63 **
64 ** Returns number of event_ids supported
65 **
66 *******************************************************************************/
bta_avrc_co_rn_evt_cap(UINT8 * event_ids)67 UINT8 bta_avrc_co_rn_evt_cap(UINT8 *event_ids)
68 {
69 if (event_ids == 0) {
70 return 0;
71 }
72
73 UINT16 event_bits = btc_avrc_tg_get_rn_supported_evt();
74 UINT8 count = 0;
75 for (UINT8 i = 0; i < 16; ++i, event_bits >>= 1) {
76 if (event_bits & 0x01) {
77 event_ids[count++] = i;
78 }
79 }
80 return count;
81 }
82
83 /*******************************************************************************
84 **
85 ** Function bta_avrc_co_evt_supported
86 **
87 ** Description Check if local AVRCP TG configuration supports the given
88 ** event_id
89 **
90 ** Returns TRUE if operation_id is supported, FALSE otherwise
91 **
92 *******************************************************************************/
bta_avrc_co_rn_evt_supported(UINT8 event_id)93 BOOLEAN bta_avrc_co_rn_evt_supported(UINT8 event_id)
94 {
95 return btc_avrc_tg_rn_evt_supported(event_id) ?
96 TRUE : FALSE;
97 }
98
99 /* the call out functions for AVRC */
100 tBTA_AVRC_CO_FUNCTS bta_avrc_cos = {
101 bta_avrc_co_cmd_allowed,
102 bta_avrc_co_rn_evt_cap,
103 bta_avrc_co_rn_evt_supported,
104 };
105
106 #endif /* #if BTC_AV_INCLUDED */
107
