1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*
* Copyright (C) 2017, Microchip Technology Inc. and its subsidiaries.
* Author Tobias Jahnke
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#define _GNU_SOURCE
#include <string.h>
#include "hal-interface.h"
#include "audio-common.h"
#include "wrap-json.h"
#include "wrap_unicens.h"
#include "wrap_volume.h"
#ifndef UCS2_CFG_PATH
# define UCS2_CFG_PATH "/home/agluser/DEVELOPMENT/AGL/BINDING/unicens2-binding/data"
#endif
#define ALSA_CARD_NAME "Microchip MOST:1"
#define PCM_MAX_CHANNELS 6
static int master_volume;
static json_bool master_switch;
static int pcm_volume[PCM_MAX_CHANNELS];
void unicens_master_vol_cb(halCtlsTagT tag, alsaHalCtlMapT *control, void* handle, json_object *j_obj) {
const char *j_str = json_object_to_json_string(j_obj);
if (wrap_json_unpack(j_obj, "[i!]", &master_volume) == 0) {
AFB_NOTICE("master_volume: %s, value=%d", j_str, master_volume);
wrap_volume_master(master_volume);
}
else {
AFB_NOTICE("master_volume: INVALID STRING %s", j_str);
}
}
void unicens_master_switch_cb(halCtlsTagT tag, alsaHalCtlMapT *control, void* handle, json_object *j_obj) {
const char *j_str = json_object_to_json_string(j_obj);
if (wrap_json_unpack(j_obj, "[b!]", &master_switch) == 0) {
AFB_NOTICE("master_switch: %s, value=%d", j_str, master_switch);
}
else {
AFB_NOTICE("master_switch: INVALID STRING %s", j_str);
}
}
void unicens_pcm_vol_cb(halCtlsTagT tag, alsaHalCtlMapT *control, void* handle, json_object *j_obj) {
const char *j_str = json_object_to_json_string(j_obj);
if (wrap_json_unpack(j_obj, "[iiiiii!]", &pcm_volume[0], &pcm_volume[1], &pcm_volume[2], &pcm_volume[3],
&pcm_volume[4], &pcm_volume[5]) == 0) {
AFB_NOTICE("pcm_vol: %s", j_str);
wrap_volume_pcm(pcm_volume, PCM_MAX_CHANNELS/*array size*/);
}
else {
AFB_NOTICE("pcm_vol: INVALID STRING %s", j_str);
}
}
/* declare ALSA mixer controls */
STATIC alsaHalMapT alsaHalMap[]= {
{ .tag=Master_Playback_Volume, .cb={.callback=unicens_master_vol_cb, .handle=&master_volume}, .info="Sets master playback volume",
.ctl={.numid=1, .type=SND_CTL_ELEM_TYPE_INTEGER, .count=1, .minval=0, .maxval=100, .step=1, .value=50, .name="Master Playback Volume"}
},
/*{ .tag=Master_OnOff_Switch, .cb={.callback=unicens_master_switch_cb, .handle=&master_switch}, .info="Sets master playback switch",
.ctl={.numid=2, .type=SND_CTL_ELEM_TYPE_BOOLEAN, .count=1, .minval=0, .maxval=1, .step=1, .value=1, .name="Master Playback Switch"}
},*/
{ .tag=PCM_Playback_Volume, .cb={.callback=unicens_pcm_vol_cb, .handle=&pcm_volume}, .info="Sets PCM playback volume",
.ctl={.numid=3, .type=SND_CTL_ELEM_TYPE_INTEGER, .count=6, .minval=0, .maxval=100, .step=1, .value=100, .name="PCM Playback Volume"}
},
{ .tag=EndHalCrlTag} /* marker for end of the array */
} ;
/* HAL sound card mapping info */
STATIC alsaHalSndCardT alsaHalSndCard = {
.name = ALSA_CARD_NAME, /* WARNING: name MUST match with 'aplay -l' */
.info = "HAL for MICROCHIP MOST sound card controlled by UNICENS binding",
.ctls = alsaHalMap,
.volumeCB = NULL, /* use default volume normalization function */
};
/* initializes ALSA sound card, UNICENS API */
STATIC int unicens_service_init() {
int err = 0;
char *config_file = NULL;
AFB_NOTICE("Initializing HAL-MOST-UNICENS-BINDING");
err = halServiceInit(afbBindingV2.api, &alsaHalSndCard);
if (err) {
AFB_ERROR("Cannot initialize ALSA soundcard.");
goto OnErrorExit;
}
err= afb_daemon_require_api("UNICENS", 1);
if (err) {
AFB_ERROR("Failed to access UNICENS API");
goto OnErrorExit;
}
err = wrap_ucs_getconfig_sync(UCS2_CFG_PATH, &config_file);
if (err || (config_file == NULL)) {
AFB_ERROR("Failed to retrieve configuration");
goto OnErrorExit;
}
else {
AFB_NOTICE("Found configuration: %s", config_file);
}
err = wrap_ucs_subscribe_sync();
if (err) {
AFB_ERROR("Failed to subscribe to UNICENS binding");
goto OnErrorExit;
}
err = wrap_ucs_initialize_sync(config_file);
free(config_file);
config_file = NULL;
if (err) {
AFB_ERROR("Failed to initialize UNICENS binding");
goto OnErrorExit;
}
err = wrap_volume_init();
if (err) {
AFB_ERROR("Failed to initialize wrapper for volume library");
goto OnErrorExit;
}
OnErrorExit:
AFB_NOTICE("Initializing HAL-MOST-UNICENS-BINDING done..");
return err;
}
// This receive all event this binding subscribe to
PUBLIC void unicens_event_cb(const char *evtname, json_object *j_event) {
if (strncmp(evtname, "alsacore/", 9) == 0) {
halServiceEvent(evtname, j_event);
return;
}
if (strncmp(evtname, "UNICENS/", 8) == 0) {
AFB_NOTICE("unicens_event_cb: evtname=%s [msg=%s]", evtname, json_object_get_string(j_event));
return;
}
AFB_NOTICE("unicens_event_cb: UNHANDLED EVENT, evtname=%s [msg=%s]", evtname, json_object_get_string(j_event));
}
/* API prefix should be unique for each snd card */
PUBLIC const struct afb_binding_v2 afbBindingV2 = {
.api = "hal-most-unicens",
.init = unicens_service_init,
.verbs = halServiceApi,
.onevent = unicens_event_cb,
};
|
