| /* |
| * Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| * Not a Contribution. |
| * |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * 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 LOG_TAG "offload_effect_equalizer" |
| #define LOG_NDEBUG 0 |
| |
| #include <cutils/list.h> |
| #include <cutils/log.h> |
| #include <tinyalsa/asoundlib.h> |
| #include <sound/audio_effects.h> |
| #include <audio_effects/effect_equalizer.h> |
| |
| #include "effect_api.h" |
| #include "equalizer.h" |
| |
| /* Offload equalizer UUID: a0dac280-401c-11e3-9379-0002a5d5c51b */ |
| const effect_descriptor_t equalizer_descriptor = { |
| {0x0bed4300, 0xddd6, 0x11db, 0x8f34, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // type |
| {0xa0dac280, 0x401c, 0x11e3, 0x9379, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // uuid |
| EFFECT_CONTROL_API_VERSION, |
| (EFFECT_FLAG_TYPE_INSERT | EFFECT_FLAG_HW_ACC_TUNNEL), |
| 0, /* TODO */ |
| 1, |
| "MSM offload equalizer", |
| "The Android Open Source Project", |
| }; |
| |
| static const char *equalizer_preset_names[] = { |
| "Normal", |
| "Classical", |
| "Dance", |
| "Flat", |
| "Folk", |
| "Heavy Metal", |
| "Hip Hop", |
| "Jazz", |
| "Pop", |
| "Rock" |
| }; |
| |
| static const uint32_t equalizer_band_freq_range[NUM_EQ_BANDS][2] = { |
| {30000, 120000}, |
| {120001, 460000}, |
| {460001, 1800000}, |
| {1800001, 7000000}, |
| {7000001, 20000000}}; |
| |
| static const uint16_t equalizer_band_presets_level[] = { |
| 3, 0, 0, 0, 3, /* Normal Preset */ |
| 5, 3, -2, 4, 4, /* Classical Preset */ |
| 6, 0, 2, 4, 1, /* Dance Preset */ |
| 0, 0, 0, 0, 0, /* Flat Preset */ |
| 3, 0, 0, 2, -1, /* Folk Preset */ |
| 4, 1, 9, 3, 0, /* Heavy Metal Preset */ |
| 5, 3, 0, 1, 3, /* Hip Hop Preset */ |
| 4, 2, -2, 2, 5, /* Jazz Preset */ |
| -1, 2, 5, 1, -2, /* Pop Preset */ |
| 5, 3, -1, 3, 5}; /* Rock Preset */ |
| |
| const uint16_t equalizer_band_presets_freq[NUM_EQ_BANDS] = { |
| 60, /* Frequencies in Hz */ |
| 230, |
| 910, |
| 3600, |
| 14000 |
| }; |
| |
| /* |
| * Equalizer operations |
| */ |
| |
| int equalizer_get_band_level(equalizer_context_t *context, int32_t band) |
| { |
| ALOGV("%s: ctxt %p, band: %d level: %d", __func__, context, band, |
| context->band_levels[band] * 100); |
| return context->band_levels[band] * 100; |
| } |
| |
| int equalizer_set_band_level(equalizer_context_t *context, int32_t band, |
| int32_t level) |
| { |
| ALOGV("%s: ctxt %p, band: %d, level: %d", __func__, context, band, level); |
| if (level > 0) { |
| level = (int)((level+50)/100); |
| } else { |
| level = (int)((level-50)/100); |
| } |
| context->band_levels[band] = level; |
| context->preset = PRESET_CUSTOM; |
| |
| offload_eq_set_preset(&(context->offload_eq), PRESET_CUSTOM); |
| offload_eq_set_bands_level(&(context->offload_eq), |
| NUM_EQ_BANDS, |
| equalizer_band_presets_freq, |
| context->band_levels); |
| if (context->ctl) |
| offload_eq_send_params(context->ctl, context->offload_eq, |
| OFFLOAD_SEND_EQ_ENABLE_FLAG | |
| OFFLOAD_SEND_EQ_BANDS_LEVEL); |
| return 0; |
| } |
| |
| int equalizer_get_center_frequency(equalizer_context_t *context, int32_t band) |
| { |
| ALOGV("%s: ctxt %p, band: %d", __func__, context, band); |
| return (equalizer_band_freq_range[band][0] + |
| equalizer_band_freq_range[band][1]) / 2; |
| } |
| |
| int equalizer_get_band_freq_range(equalizer_context_t *context, int32_t band, |
| uint32_t *low, uint32_t *high) |
| { |
| ALOGV("%s: ctxt %p, band: %d", __func__, context, band); |
| *low = equalizer_band_freq_range[band][0]; |
| *high = equalizer_band_freq_range[band][1]; |
| return 0; |
| } |
| |
| int equalizer_get_band(equalizer_context_t *context, uint32_t freq) |
| { |
| int i; |
| |
| ALOGV("%s: ctxt %p, freq: %d", __func__, context, freq); |
| for(i = 0; i < NUM_EQ_BANDS; i++) { |
| if (freq <= equalizer_band_freq_range[i][1]) { |
| return i; |
| } |
| } |
| return NUM_EQ_BANDS - 1; |
| } |
| |
| int equalizer_get_preset(equalizer_context_t *context) |
| { |
| ALOGV("%s: ctxt %p, preset: %d", __func__, context, context->preset); |
| return context->preset; |
| } |
| |
| int equalizer_set_preset(equalizer_context_t *context, int preset) |
| { |
| int i; |
| |
| ALOGV("%s: ctxt %p, preset: %d", __func__, context, preset); |
| context->preset = preset; |
| for (i=0; i<NUM_EQ_BANDS; i++) |
| context->band_levels[i] = |
| equalizer_band_presets_level[i + preset * NUM_EQ_BANDS]; |
| |
| offload_eq_set_preset(&(context->offload_eq), preset); |
| offload_eq_set_bands_level(&(context->offload_eq), |
| NUM_EQ_BANDS, |
| equalizer_band_presets_freq, |
| context->band_levels); |
| if(context->ctl) |
| offload_eq_send_params(context->ctl, context->offload_eq, |
| OFFLOAD_SEND_EQ_ENABLE_FLAG | |
| OFFLOAD_SEND_EQ_PRESET); |
| return 0; |
| } |
| |
| const char * equalizer_get_preset_name(equalizer_context_t *context, |
| int32_t preset) |
| { |
| ALOGV("%s: ctxt %p, preset: %s", __func__, context, |
| equalizer_preset_names[preset]); |
| if (preset == PRESET_CUSTOM) { |
| return "Custom"; |
| } else { |
| return equalizer_preset_names[preset]; |
| } |
| } |
| |
| int equalizer_get_num_presets(equalizer_context_t *context) |
| { |
| ALOGV("%s: ctxt %p, presets_num: %d", __func__, context, |
| sizeof(equalizer_preset_names)/sizeof(char *)); |
| return sizeof(equalizer_preset_names)/sizeof(char *); |
| } |
| |
| int equalizer_get_parameter(effect_context_t *context, effect_param_t *p, |
| uint32_t *size) |
| { |
| equalizer_context_t *eq_ctxt = (equalizer_context_t *)context; |
| int voffset = ((p->psize - 1) / sizeof(int32_t) + 1) * sizeof(int32_t); |
| int32_t *param_tmp = (int32_t *)p->data; |
| int32_t param = *param_tmp++; |
| int32_t param2; |
| char *name; |
| void *value = p->data + voffset; |
| int i; |
| |
| ALOGV("%s: ctxt %p, param %d", __func__, eq_ctxt, param); |
| |
| p->status = 0; |
| |
| switch (param) { |
| case EQ_PARAM_NUM_BANDS: |
| case EQ_PARAM_CUR_PRESET: |
| case EQ_PARAM_GET_NUM_OF_PRESETS: |
| case EQ_PARAM_BAND_LEVEL: |
| case EQ_PARAM_GET_BAND: |
| if (p->vsize < sizeof(int16_t)) |
| p->status = -EINVAL; |
| p->vsize = sizeof(int16_t); |
| break; |
| |
| case EQ_PARAM_LEVEL_RANGE: |
| if (p->vsize < 2 * sizeof(int16_t)) |
| p->status = -EINVAL; |
| p->vsize = 2 * sizeof(int16_t); |
| break; |
| case EQ_PARAM_BAND_FREQ_RANGE: |
| if (p->vsize < 2 * sizeof(int32_t)) |
| p->status = -EINVAL; |
| p->vsize = 2 * sizeof(int32_t); |
| break; |
| |
| case EQ_PARAM_CENTER_FREQ: |
| if (p->vsize < sizeof(int32_t)) |
| p->status = -EINVAL; |
| p->vsize = sizeof(int32_t); |
| break; |
| |
| case EQ_PARAM_GET_PRESET_NAME: |
| break; |
| |
| case EQ_PARAM_PROPERTIES: |
| if (p->vsize < (2 + NUM_EQ_BANDS) * sizeof(uint16_t)) |
| p->status = -EINVAL; |
| p->vsize = (2 + NUM_EQ_BANDS) * sizeof(uint16_t); |
| break; |
| |
| default: |
| p->status = -EINVAL; |
| } |
| |
| *size = sizeof(effect_param_t) + voffset + p->vsize; |
| |
| if (p->status != 0) |
| return 0; |
| |
| switch (param) { |
| case EQ_PARAM_NUM_BANDS: |
| *(uint16_t *)value = (uint16_t)NUM_EQ_BANDS; |
| break; |
| |
| case EQ_PARAM_LEVEL_RANGE: |
| *(int16_t *)value = -1500; |
| *((int16_t *)value + 1) = 1500; |
| break; |
| |
| case EQ_PARAM_BAND_LEVEL: |
| param2 = *param_tmp; |
| if (param2 >= NUM_EQ_BANDS) { |
| p->status = -EINVAL; |
| break; |
| } |
| *(int16_t *)value = (int16_t)equalizer_get_band_level(eq_ctxt, param2); |
| break; |
| |
| case EQ_PARAM_CENTER_FREQ: |
| param2 = *param_tmp; |
| if (param2 >= NUM_EQ_BANDS) { |
| p->status = -EINVAL; |
| break; |
| } |
| *(int32_t *)value = equalizer_get_center_frequency(eq_ctxt, param2); |
| break; |
| |
| case EQ_PARAM_BAND_FREQ_RANGE: |
| param2 = *param_tmp; |
| if (param2 >= NUM_EQ_BANDS) { |
| p->status = -EINVAL; |
| break; |
| } |
| equalizer_get_band_freq_range(eq_ctxt, param2, (uint32_t *)value, |
| ((uint32_t *)value + 1)); |
| break; |
| |
| case EQ_PARAM_GET_BAND: |
| param2 = *param_tmp; |
| *(uint16_t *)value = (uint16_t)equalizer_get_band(eq_ctxt, param2); |
| break; |
| |
| case EQ_PARAM_CUR_PRESET: |
| *(uint16_t *)value = (uint16_t)equalizer_get_preset(eq_ctxt); |
| break; |
| |
| case EQ_PARAM_GET_NUM_OF_PRESETS: |
| *(uint16_t *)value = (uint16_t)equalizer_get_num_presets(eq_ctxt); |
| break; |
| |
| case EQ_PARAM_GET_PRESET_NAME: |
| param2 = *param_tmp; |
| ALOGV("%s: EQ_PARAM_GET_PRESET_NAME: param2: %d", __func__, param2); |
| if (param2 >= equalizer_get_num_presets(eq_ctxt)) { |
| p->status = -EINVAL; |
| break; |
| } |
| name = (char *)value; |
| strlcpy(name, equalizer_get_preset_name(eq_ctxt, param2), p->vsize - 1); |
| name[p->vsize - 1] = 0; |
| p->vsize = strlen(name) + 1; |
| break; |
| |
| case EQ_PARAM_PROPERTIES: { |
| int16_t *prop = (int16_t *)value; |
| prop[0] = (int16_t)equalizer_get_preset(eq_ctxt); |
| prop[1] = (int16_t)NUM_EQ_BANDS; |
| for (i = 0; i < NUM_EQ_BANDS; i++) { |
| prop[2 + i] = (int16_t)equalizer_get_band_level(eq_ctxt, i); |
| } |
| } break; |
| |
| default: |
| p->status = -EINVAL; |
| break; |
| } |
| |
| return 0; |
| } |
| |
| int equalizer_set_parameter(effect_context_t *context, effect_param_t *p, |
| uint32_t size) |
| { |
| equalizer_context_t *eq_ctxt = (equalizer_context_t *)context; |
| int voffset = ((p->psize - 1) / sizeof(int32_t) + 1) * sizeof(int32_t); |
| void *value = p->data + voffset; |
| int32_t *param_tmp = (int32_t *)p->data; |
| int32_t param = *param_tmp++; |
| int32_t preset; |
| int32_t band; |
| int32_t level; |
| int i; |
| |
| ALOGV("%s: ctxt %p, param %d", __func__, eq_ctxt, param); |
| |
| p->status = 0; |
| |
| switch (param) { |
| case EQ_PARAM_CUR_PRESET: |
| preset = (int32_t)(*(uint16_t *)value); |
| |
| if ((preset >= equalizer_get_num_presets(eq_ctxt)) || (preset < 0)) { |
| p->status = -EINVAL; |
| break; |
| } |
| equalizer_set_preset(eq_ctxt, preset); |
| break; |
| case EQ_PARAM_BAND_LEVEL: |
| band = *param_tmp; |
| level = (int32_t)(*(int16_t *)value); |
| if (band >= NUM_EQ_BANDS) { |
| p->status = -EINVAL; |
| break; |
| } |
| equalizer_set_band_level(eq_ctxt, band, level); |
| break; |
| case EQ_PARAM_PROPERTIES: { |
| int16_t *prop = (int16_t *)value; |
| if ((int)prop[0] >= equalizer_get_num_presets(eq_ctxt)) { |
| p->status = -EINVAL; |
| break; |
| } |
| if (prop[0] >= 0) { |
| equalizer_set_preset(eq_ctxt, (int)prop[0]); |
| } else { |
| if ((int)prop[1] != NUM_EQ_BANDS) { |
| p->status = -EINVAL; |
| break; |
| } |
| for (i = 0; i < NUM_EQ_BANDS; i++) { |
| equalizer_set_band_level(eq_ctxt, i, (int)prop[2 + i]); |
| } |
| } |
| } break; |
| default: |
| p->status = -EINVAL; |
| break; |
| } |
| |
| return 0; |
| } |
| |
| int equalizer_set_device(effect_context_t *context, uint32_t device) |
| { |
| ALOGV("%s: ctxt %p, device: 0x%x", __func__, context, device); |
| equalizer_context_t *eq_ctxt = (equalizer_context_t *)context; |
| eq_ctxt->device = device; |
| offload_eq_set_device(&(eq_ctxt->offload_eq), device); |
| return 0; |
| } |
| |
| int equalizer_reset(effect_context_t *context) |
| { |
| equalizer_context_t *eq_ctxt = (equalizer_context_t *)context; |
| |
| return 0; |
| } |
| |
| int equalizer_init(effect_context_t *context) |
| { |
| ALOGV("%s: ctxt %p", __func__, context); |
| equalizer_context_t *eq_ctxt = (equalizer_context_t *)context; |
| |
| context->config.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ; |
| context->config.inputCfg.channels = AUDIO_CHANNEL_OUT_STEREO; |
| context->config.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT; |
| context->config.inputCfg.samplingRate = 44100; |
| context->config.inputCfg.bufferProvider.getBuffer = NULL; |
| context->config.inputCfg.bufferProvider.releaseBuffer = NULL; |
| context->config.inputCfg.bufferProvider.cookie = NULL; |
| context->config.inputCfg.mask = EFFECT_CONFIG_ALL; |
| context->config.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE; |
| context->config.outputCfg.channels = AUDIO_CHANNEL_OUT_STEREO; |
| context->config.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT; |
| context->config.outputCfg.samplingRate = 44100; |
| context->config.outputCfg.bufferProvider.getBuffer = NULL; |
| context->config.outputCfg.bufferProvider.releaseBuffer = NULL; |
| context->config.outputCfg.bufferProvider.cookie = NULL; |
| context->config.outputCfg.mask = EFFECT_CONFIG_ALL; |
| |
| set_config(context, &context->config); |
| |
| memset(&(eq_ctxt->offload_eq), 0, sizeof(struct eq_params)); |
| offload_eq_set_preset(&(eq_ctxt->offload_eq), INVALID_PRESET); |
| |
| return 0; |
| } |
| |
| int equalizer_enable(effect_context_t *context) |
| { |
| equalizer_context_t *eq_ctxt = (equalizer_context_t *)context; |
| |
| ALOGV("%s: ctxt %p", __func__, context); |
| |
| if (!offload_eq_get_enable_flag(&(eq_ctxt->offload_eq))) { |
| offload_eq_set_enable_flag(&(eq_ctxt->offload_eq), true); |
| if (eq_ctxt->ctl) |
| offload_eq_send_params(eq_ctxt->ctl, eq_ctxt->offload_eq, |
| OFFLOAD_SEND_EQ_ENABLE_FLAG | |
| OFFLOAD_SEND_EQ_BANDS_LEVEL); |
| } |
| return 0; |
| } |
| |
| int equalizer_disable(effect_context_t *context) |
| { |
| equalizer_context_t *eq_ctxt = (equalizer_context_t *)context; |
| |
| ALOGV("%s:ctxt %p", __func__, eq_ctxt); |
| if (offload_eq_get_enable_flag(&(eq_ctxt->offload_eq))) { |
| offload_eq_set_enable_flag(&(eq_ctxt->offload_eq), false); |
| if (eq_ctxt->ctl) |
| offload_eq_send_params(eq_ctxt->ctl, eq_ctxt->offload_eq, |
| OFFLOAD_SEND_EQ_ENABLE_FLAG); |
| } |
| return 0; |
| } |
| |
| int equalizer_start(effect_context_t *context, output_context_t *output) |
| { |
| equalizer_context_t *eq_ctxt = (equalizer_context_t *)context; |
| |
| ALOGV("%s: ctxt %p, ctl %p", __func__, eq_ctxt, output->ctl); |
| eq_ctxt->ctl = output->ctl; |
| if (offload_eq_get_enable_flag(&(eq_ctxt->offload_eq))) |
| if (eq_ctxt->ctl) |
| offload_eq_send_params(eq_ctxt->ctl, eq_ctxt->offload_eq, |
| OFFLOAD_SEND_EQ_ENABLE_FLAG | |
| OFFLOAD_SEND_EQ_BANDS_LEVEL); |
| return 0; |
| } |
| |
| int equalizer_stop(effect_context_t *context, output_context_t *output) |
| { |
| equalizer_context_t *eq_ctxt = (equalizer_context_t *)context; |
| |
| ALOGV("%s: ctxt %p", __func__, eq_ctxt); |
| eq_ctxt->ctl = NULL; |
| return 0; |
| } |