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      1 /*
      2  * Copyright (C) 2015 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 "APM::HwModule"
     18 //#define LOG_NDEBUG 0
     19 
     20 #include "HwModule.h"
     21 #include "IOProfile.h"
     22 #include "AudioGain.h"
     23 #include <hardware/audio.h>
     24 #include <policy.h>
     25 
     26 namespace android {
     27 
     28 HwModule::HwModule(const char *name, uint32_t halVersion)
     29     : mName(String8(name)),
     30       mHandle(AUDIO_MODULE_HANDLE_NONE),
     31       mHalVersion(halVersion)
     32 {
     33 }
     34 
     35 HwModule::~HwModule()
     36 {
     37     for (size_t i = 0; i < mOutputProfiles.size(); i++) {
     38         mOutputProfiles[i]->clearSupportedDevices();
     39     }
     40     for (size_t i = 0; i < mInputProfiles.size(); i++) {
     41         mInputProfiles[i]->clearSupportedDevices();
     42     }
     43 }
     44 
     45 status_t HwModule::addOutputProfile(String8 name, const audio_config_t *config,
     46                                     audio_devices_t device, String8 address)
     47 {
     48     sp<IOProfile> profile = new OutputProfile(name);
     49 
     50     profile->addAudioProfile(new AudioProfile(config->format, config->channel_mask,
     51                                               config->sample_rate));
     52 
     53     sp<DeviceDescriptor> devDesc = new DeviceDescriptor(device);
     54     devDesc->mAddress = address;
     55     profile->addSupportedDevice(devDesc);
     56 
     57     return addOutputProfile(profile);
     58 }
     59 
     60 status_t HwModule::addOutputProfile(const sp<IOProfile> &profile)
     61 {
     62     profile->attach(this);
     63     mOutputProfiles.add(profile);
     64     mPorts.add(profile);
     65     return NO_ERROR;
     66 }
     67 
     68 status_t HwModule::addInputProfile(const sp<IOProfile> &profile)
     69 {
     70     profile->attach(this);
     71     mInputProfiles.add(profile);
     72     mPorts.add(profile);
     73     return NO_ERROR;
     74 }
     75 
     76 status_t HwModule::addProfile(const sp<IOProfile> &profile)
     77 {
     78     switch (profile->getRole()) {
     79     case AUDIO_PORT_ROLE_SOURCE:
     80         return addOutputProfile(profile);
     81     case AUDIO_PORT_ROLE_SINK:
     82         return addInputProfile(profile);
     83     case AUDIO_PORT_ROLE_NONE:
     84         return BAD_VALUE;
     85     }
     86     return BAD_VALUE;
     87 }
     88 
     89 void HwModule::setProfiles(const IOProfileCollection &profiles)
     90 {
     91     for (size_t i = 0; i < profiles.size(); i++) {
     92         addProfile(profiles[i]);
     93     }
     94 }
     95 
     96 status_t HwModule::removeOutputProfile(String8 name)
     97 {
     98     for (size_t i = 0; i < mOutputProfiles.size(); i++) {
     99         if (mOutputProfiles[i]->getName() == name) {
    100             mOutputProfiles.removeAt(i);
    101             break;
    102         }
    103     }
    104 
    105     return NO_ERROR;
    106 }
    107 
    108 status_t HwModule::addInputProfile(String8 name, const audio_config_t *config,
    109                                    audio_devices_t device, String8 address)
    110 {
    111     sp<IOProfile> profile = new InputProfile(name);
    112     profile->addAudioProfile(new AudioProfile(config->format, config->channel_mask,
    113                                               config->sample_rate));
    114 
    115     sp<DeviceDescriptor> devDesc = new DeviceDescriptor(device);
    116     devDesc->mAddress = address;
    117     profile->addSupportedDevice(devDesc);
    118 
    119     ALOGV("addInputProfile() name %s rate %d mask 0x%08x",
    120           name.string(), config->sample_rate, config->channel_mask);
    121 
    122     return addInputProfile(profile);
    123 }
    124 
    125 status_t HwModule::removeInputProfile(String8 name)
    126 {
    127     for (size_t i = 0; i < mInputProfiles.size(); i++) {
    128         if (mInputProfiles[i]->getName() == name) {
    129             mInputProfiles.removeAt(i);
    130             break;
    131         }
    132     }
    133 
    134     return NO_ERROR;
    135 }
    136 
    137 void HwModule::setDeclaredDevices(const DeviceVector &devices)
    138 {
    139     mDeclaredDevices = devices;
    140     for (size_t i = 0; i < devices.size(); i++) {
    141         mPorts.add(devices[i]);
    142     }
    143 }
    144 
    145 sp<DeviceDescriptor> HwModule::getRouteSinkDevice(const sp<AudioRoute> &route) const
    146 {
    147     sp<DeviceDescriptor> sinkDevice = 0;
    148     if (route->getSink()->getType() == AUDIO_PORT_TYPE_DEVICE) {
    149         sinkDevice = mDeclaredDevices.getDeviceFromTagName(route->getSink()->getTagName());
    150     }
    151     return sinkDevice;
    152 }
    153 
    154 DeviceVector HwModule::getRouteSourceDevices(const sp<AudioRoute> &route) const
    155 {
    156     DeviceVector sourceDevices;
    157     Vector <sp<AudioPort> > sources = route->getSources();
    158     for (size_t i = 0; i < sources.size(); i++) {
    159         if (sources[i]->getType() == AUDIO_PORT_TYPE_DEVICE) {
    160             sourceDevices.add(mDeclaredDevices.getDeviceFromTagName(sources[i]->getTagName()));
    161         }
    162     }
    163     return sourceDevices;
    164 }
    165 
    166 void HwModule::setRoutes(const AudioRouteVector &routes)
    167 {
    168     mRoutes = routes;
    169     // Now updating the streams (aka IOProfile until now) supported devices
    170     refreshSupportedDevices();
    171 }
    172 
    173 void HwModule::refreshSupportedDevices()
    174 {
    175     // Now updating the streams (aka IOProfile until now) supported devices
    176     for (size_t i = 0; i < mInputProfiles.size(); i++) {
    177         sp<IOProfile> stream = mInputProfiles[i];
    178         DeviceVector sourceDevices;
    179         const AudioRouteVector &routes = stream->getRoutes();
    180         for (size_t j = 0; j < routes.size(); j++) {
    181             sp<AudioPort> sink = routes[j]->getSink();
    182             if (sink == 0 || stream != sink) {
    183                 ALOGE("%s: Invalid route attached to input stream", __FUNCTION__);
    184                 continue;
    185             }
    186             DeviceVector sourceDevicesForRoute = getRouteSourceDevices(routes[j]);
    187             if (sourceDevicesForRoute.isEmpty()) {
    188                 ALOGE("%s: invalid source devices for %s", __FUNCTION__, stream->getName().string());
    189                 continue;
    190             }
    191             sourceDevices.add(sourceDevicesForRoute);
    192         }
    193         if (sourceDevices.isEmpty()) {
    194             ALOGE("%s: invalid source devices for %s", __FUNCTION__, stream->getName().string());
    195             continue;
    196         }
    197         stream->setSupportedDevices(sourceDevices);
    198     }
    199     for (size_t i = 0; i < mOutputProfiles.size(); i++) {
    200         sp<IOProfile> stream = mOutputProfiles[i];
    201         DeviceVector sinkDevices;
    202         const AudioRouteVector &routes = stream->getRoutes();
    203         for (size_t j = 0; j < routes.size(); j++) {
    204             sp<AudioPort> source = routes[j]->getSources().findByTagName(stream->getTagName());
    205             if (source == 0 || stream != source) {
    206                 ALOGE("%s: Invalid route attached to output stream", __FUNCTION__);
    207                 continue;
    208             }
    209             sp<DeviceDescriptor> sinkDevice = getRouteSinkDevice(routes[j]);
    210             if (sinkDevice == 0) {
    211                 ALOGE("%s: invalid sink device for %s", __FUNCTION__, stream->getName().string());
    212                 continue;
    213             }
    214             sinkDevices.add(sinkDevice);
    215         }
    216         stream->setSupportedDevices(sinkDevices);
    217     }
    218 }
    219 
    220 void HwModule::dump(int fd)
    221 {
    222     const size_t SIZE = 256;
    223     char buffer[SIZE];
    224     String8 result;
    225 
    226     snprintf(buffer, SIZE, "  - name: %s\n", getName());
    227     result.append(buffer);
    228     snprintf(buffer, SIZE, "  - handle: %d\n", mHandle);
    229     result.append(buffer);
    230     snprintf(buffer, SIZE, "  - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF);
    231     result.append(buffer);
    232     write(fd, result.string(), result.size());
    233     if (mOutputProfiles.size()) {
    234         write(fd, "  - outputs:\n", strlen("  - outputs:\n"));
    235         for (size_t i = 0; i < mOutputProfiles.size(); i++) {
    236             snprintf(buffer, SIZE, "    output %zu:\n", i);
    237             write(fd, buffer, strlen(buffer));
    238             mOutputProfiles[i]->dump(fd);
    239         }
    240     }
    241     if (mInputProfiles.size()) {
    242         write(fd, "  - inputs:\n", strlen("  - inputs:\n"));
    243         for (size_t i = 0; i < mInputProfiles.size(); i++) {
    244             snprintf(buffer, SIZE, "    input %zu:\n", i);
    245             write(fd, buffer, strlen(buffer));
    246             mInputProfiles[i]->dump(fd);
    247         }
    248     }
    249     mDeclaredDevices.dump(fd, String8("Declared"),  2, true);
    250     mRoutes.dump(fd, 2);
    251 }
    252 
    253 sp <HwModule> HwModuleCollection::getModuleFromName(const char *name) const
    254 {
    255     sp <HwModule> module;
    256 
    257     for (size_t i = 0; i < size(); i++)
    258     {
    259         if (strcmp(itemAt(i)->getName(), name) == 0) {
    260             return itemAt(i);
    261         }
    262     }
    263     return module;
    264 }
    265 
    266 
    267 sp <HwModule> HwModuleCollection::getModuleForDevice(audio_devices_t device) const
    268 {
    269     sp <HwModule> module;
    270 
    271     for (size_t i = 0; i < size(); i++) {
    272         if (itemAt(i)->getHandle() == 0) {
    273             continue;
    274         }
    275         if (audio_is_output_device(device)) {
    276             for (size_t j = 0; j < itemAt(i)->mOutputProfiles.size(); j++)
    277             {
    278                 if (itemAt(i)->mOutputProfiles[j]->supportDevice(device)) {
    279                     return itemAt(i);
    280                 }
    281             }
    282         } else {
    283             for (size_t j = 0; j < itemAt(i)->mInputProfiles.size(); j++) {
    284                 if (itemAt(i)->mInputProfiles[j]->supportDevice(device)) {
    285                     return itemAt(i);
    286                 }
    287             }
    288         }
    289     }
    290     return module;
    291 }
    292 
    293 sp<DeviceDescriptor>  HwModuleCollection::getDeviceDescriptor(const audio_devices_t device,
    294                                                               const char *device_address,
    295                                                               const char *device_name,
    296                                                               bool matchAdress) const
    297 {
    298     String8 address = (device_address == NULL) ? String8("") : String8(device_address);
    299     // handle legacy remote submix case where the address was not always specified
    300     if (device_distinguishes_on_address(device) && (address.length() == 0)) {
    301         address = String8("0");
    302     }
    303 
    304     for (size_t i = 0; i < size(); i++) {
    305         const sp<HwModule> hwModule = itemAt(i);
    306         if (hwModule->mHandle == 0) {
    307             continue;
    308         }
    309         DeviceVector declaredDevices = hwModule->getDeclaredDevices();
    310         DeviceVector deviceList = declaredDevices.getDevicesFromTypeAddr(device, address);
    311         if (!deviceList.isEmpty()) {
    312             return deviceList.itemAt(0);
    313         }
    314         if (!matchAdress) {
    315             deviceList = declaredDevices.getDevicesFromType(device);
    316             if (!deviceList.isEmpty()) {
    317                 return deviceList.itemAt(0);
    318             }
    319         }
    320     }
    321 
    322     sp<DeviceDescriptor> devDesc = new DeviceDescriptor(device);
    323     devDesc->setName(String8(device_name));
    324     devDesc->mAddress = address;
    325     return devDesc;
    326 }
    327 
    328 status_t HwModuleCollection::dump(int fd) const
    329 {
    330     const size_t SIZE = 256;
    331     char buffer[SIZE];
    332 
    333     snprintf(buffer, SIZE, "\nHW Modules dump:\n");
    334     write(fd, buffer, strlen(buffer));
    335     for (size_t i = 0; i < size(); i++) {
    336         snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1);
    337         write(fd, buffer, strlen(buffer));
    338         itemAt(i)->dump(fd);
    339     }
    340     return NO_ERROR;
    341 }
    342 
    343 } //namespace android
    344