virtualizer.c revision 41f86651e362abc62d9d03f5c612c986bf15298f 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "offload_effect_virtualizer"
18//#define LOG_NDEBUG 0
19
20#include <cutils/list.h>
21#include <cutils/log.h>
22#include <tinyalsa/asoundlib.h>
23#include <sound/audio_effects.h>
24#include <audio_effects/effect_virtualizer.h>
25
26#include "effect_api.h"
27#include "virtualizer.h"
28
29/* Offload Virtualizer UUID: 509a4498-561a-4bea-b3b1-0002a5d5c51b */
30const effect_descriptor_t virtualizer_descriptor = {
31        {0x37cc2c00, 0xdddd, 0x11db, 0x8577, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}},
32        {0x509a4498, 0x561a, 0x4bea, 0xb3b1, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // uuid
33        EFFECT_CONTROL_API_VERSION,
34        (EFFECT_FLAG_TYPE_INSERT | EFFECT_FLAG_DEVICE_IND | EFFECT_FLAG_HW_ACC_TUNNEL),
35        0, /* TODO */
36        1,
37        "MSM offload virtualizer",
38        "The Android Open Source Project",
39};
40
41/*
42 * Virtualizer operations
43 */
44
45int virtualizer_get_strength(virtualizer_context_t *context)
46{
47    ALOGV("%s: strength: %d", __func__, context->strength);
48    return context->strength;
49}
50
51int virtualizer_set_strength(virtualizer_context_t *context, uint32_t strength)
52{
53    ALOGV("%s: strength: %d", __func__, strength);
54    context->strength = strength;
55
56    offload_virtualizer_set_strength(&(context->offload_virt), strength);
57    if (context->ctl)
58        offload_virtualizer_send_params(context->ctl, &context->offload_virt,
59                                        OFFLOAD_SEND_VIRTUALIZER_ENABLE_FLAG |
60                                        OFFLOAD_SEND_VIRTUALIZER_STRENGTH);
61    return 0;
62}
63
64int virtualizer_get_parameter(effect_context_t *context, effect_param_t *p,
65                              uint32_t *size)
66{
67    virtualizer_context_t *virt_ctxt = (virtualizer_context_t *)context;
68    int voffset = ((p->psize - 1) / sizeof(int32_t) + 1) * sizeof(int32_t);
69    int32_t *param_tmp = (int32_t *)p->data;
70    int32_t param = *param_tmp++;
71    void *value = p->data + voffset;
72    int i;
73
74    ALOGV("%s", __func__);
75
76    p->status = 0;
77
78    switch (param) {
79    case VIRTUALIZER_PARAM_STRENGTH_SUPPORTED:
80        if (p->vsize < sizeof(uint32_t))
81           p->status = -EINVAL;
82        p->vsize = sizeof(uint32_t);
83        break;
84    case VIRTUALIZER_PARAM_STRENGTH:
85        if (p->vsize < sizeof(int16_t))
86           p->status = -EINVAL;
87        p->vsize = sizeof(int16_t);
88        break;
89    default:
90        p->status = -EINVAL;
91    }
92
93    *size = sizeof(effect_param_t) + voffset + p->vsize;
94
95    if (p->status != 0)
96        return 0;
97
98    switch (param) {
99    case VIRTUALIZER_PARAM_STRENGTH_SUPPORTED:
100	ALOGV("%s: VIRTUALIZER_PARAM_STRENGTH_SUPPORTED", __func__);
101        *(uint32_t *)value = 1;
102        break;
103
104    case VIRTUALIZER_PARAM_STRENGTH:
105	ALOGV("%s: VIRTUALIZER_PARAM_STRENGTH", __func__);
106        *(int16_t *)value = virtualizer_get_strength(virt_ctxt);
107        break;
108
109    default:
110        p->status = -EINVAL;
111        break;
112    }
113
114    return 0;
115}
116
117int virtualizer_set_parameter(effect_context_t *context, effect_param_t *p,
118                              uint32_t size)
119{
120    virtualizer_context_t *virt_ctxt = (virtualizer_context_t *)context;
121    int voffset = ((p->psize - 1) / sizeof(int32_t) + 1) * sizeof(int32_t);
122    void *value = p->data + voffset;
123    int32_t *param_tmp = (int32_t *)p->data;
124    int32_t param = *param_tmp++;
125    uint32_t strength;
126
127    ALOGV("%s", __func__);
128
129    p->status = 0;
130
131    switch (param) {
132    case VIRTUALIZER_PARAM_STRENGTH:
133	ALOGV("%s VIRTUALIZER_PARAM_STRENGTH", __func__);
134        strength = (uint32_t)(*(int16_t *)value);
135        virtualizer_set_strength(virt_ctxt, strength);
136        break;
137    default:
138        p->status = -EINVAL;
139        break;
140    }
141
142    return 0;
143}
144
145int virtualizer_set_device(effect_context_t *context, uint32_t device)
146{
147    virtualizer_context_t *virt_ctxt = (virtualizer_context_t *)context;
148
149    ALOGV("%s: device: %d", __func__, device);
150    virt_ctxt->device = device;
151    if ((device == AUDIO_DEVICE_OUT_SPEAKER) ||
152       (device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT) ||
153       (device == AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER) ||
154       (device == AUDIO_DEVICE_OUT_PROXY) ||
155       (device == AUDIO_DEVICE_OUT_AUX_DIGITAL) ||
156       (device == AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET)) {
157        if (!virt_ctxt->temp_disabled) {
158            if (effect_is_active(&virt_ctxt->common)) {
159                offload_virtualizer_set_enable_flag(&(virt_ctxt->offload_virt), false);
160                if (virt_ctxt->ctl)
161                    offload_virtualizer_send_params(virt_ctxt->ctl,
162                                                    &virt_ctxt->offload_virt,
163                                                    OFFLOAD_SEND_VIRTUALIZER_ENABLE_FLAG);
164            }
165            virt_ctxt->temp_disabled = true;
166        }
167    } else {
168        if (virt_ctxt->temp_disabled) {
169            if (effect_is_active(&virt_ctxt->common)) {
170                offload_virtualizer_set_enable_flag(&(virt_ctxt->offload_virt), true);
171                if (virt_ctxt->ctl)
172                    offload_virtualizer_send_params(virt_ctxt->ctl,
173                                                    &virt_ctxt->offload_virt,
174                                                    OFFLOAD_SEND_VIRTUALIZER_ENABLE_FLAG);
175            }
176            virt_ctxt->temp_disabled = false;
177        }
178    }
179    offload_virtualizer_set_device(&(virt_ctxt->offload_virt), device);
180    return 0;
181}
182
183int virtualizer_reset(effect_context_t *context)
184{
185    virtualizer_context_t *virt_ctxt = (virtualizer_context_t *)context;
186
187    return 0;
188}
189
190int virtualizer_init(effect_context_t *context)
191{
192    ALOGV("%s", __func__);
193    virtualizer_context_t *virt_ctxt = (virtualizer_context_t *)context;
194
195    context->config.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
196    context->config.inputCfg.channels = AUDIO_CHANNEL_OUT_STEREO;
197    context->config.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
198    context->config.inputCfg.samplingRate = 44100;
199    context->config.inputCfg.bufferProvider.getBuffer = NULL;
200    context->config.inputCfg.bufferProvider.releaseBuffer = NULL;
201    context->config.inputCfg.bufferProvider.cookie = NULL;
202    context->config.inputCfg.mask = EFFECT_CONFIG_ALL;
203    context->config.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE;
204    context->config.outputCfg.channels = AUDIO_CHANNEL_OUT_STEREO;
205    context->config.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
206    context->config.outputCfg.samplingRate = 44100;
207    context->config.outputCfg.bufferProvider.getBuffer = NULL;
208    context->config.outputCfg.bufferProvider.releaseBuffer = NULL;
209    context->config.outputCfg.bufferProvider.cookie = NULL;
210    context->config.outputCfg.mask = EFFECT_CONFIG_ALL;
211
212    set_config(context, &context->config);
213
214    virt_ctxt->temp_disabled = false;
215    memset(&(virt_ctxt->offload_virt), 0, sizeof(struct virtualizer_params));
216
217    return 0;
218}
219
220int virtualizer_enable(effect_context_t *context)
221{
222    virtualizer_context_t *virt_ctxt = (virtualizer_context_t *)context;
223
224    ALOGV("%s", __func__);
225
226    if (!offload_virtualizer_get_enable_flag(&(virt_ctxt->offload_virt)) &&
227        !(virt_ctxt->temp_disabled)) {
228        offload_virtualizer_set_enable_flag(&(virt_ctxt->offload_virt), true);
229        if (virt_ctxt->ctl && virt_ctxt->strength)
230            offload_virtualizer_send_params(virt_ctxt->ctl,
231                                          &virt_ctxt->offload_virt,
232                                          OFFLOAD_SEND_VIRTUALIZER_ENABLE_FLAG |
233                                          OFFLOAD_SEND_BASSBOOST_STRENGTH);
234    }
235    return 0;
236}
237
238int virtualizer_disable(effect_context_t *context)
239{
240    virtualizer_context_t *virt_ctxt = (virtualizer_context_t *)context;
241
242    ALOGV("%s", __func__);
243    if (offload_virtualizer_get_enable_flag(&(virt_ctxt->offload_virt))) {
244        offload_virtualizer_set_enable_flag(&(virt_ctxt->offload_virt), false);
245        if (virt_ctxt->ctl)
246            offload_virtualizer_send_params(virt_ctxt->ctl,
247                                          &virt_ctxt->offload_virt,
248                                          OFFLOAD_SEND_VIRTUALIZER_ENABLE_FLAG);
249    }
250    return 0;
251}
252
253int virtualizer_start(effect_context_t *context, output_context_t *output)
254{
255    virtualizer_context_t *virt_ctxt = (virtualizer_context_t *)context;
256
257    ALOGV("%s", __func__);
258    virt_ctxt->ctl = output->ctl;
259    if (offload_virtualizer_get_enable_flag(&(virt_ctxt->offload_virt)))
260        if (virt_ctxt->ctl)
261            offload_virtualizer_send_params(virt_ctxt->ctl, &virt_ctxt->offload_virt,
262                                          OFFLOAD_SEND_VIRTUALIZER_ENABLE_FLAG |
263                                          OFFLOAD_SEND_VIRTUALIZER_STRENGTH);
264    return 0;
265}
266
267int virtualizer_stop(effect_context_t *context, output_context_t *output)
268{
269    virtualizer_context_t *virt_ctxt = (virtualizer_context_t *)context;
270
271    ALOGV("%s", __func__);
272    virt_ctxt->ctl = NULL;
273    return 0;
274}
275