HwModule.cpp revision 322b4d25387a04c9afebe998326d005bbdf17ede 
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 "ConfigParsingUtils.h"
24#include "audio_policy_conf.h"
25#include <hardware/audio.h>
26#include <policy.h>
27
28namespace android {
29
30HwModule::HwModule(const char *name)
31    : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)),
32      mHalVersion(AUDIO_DEVICE_API_VERSION_MIN), mHandle(0)
33{
34}
35
36HwModule::~HwModule()
37{
38    for (size_t i = 0; i < mOutputProfiles.size(); i++) {
39        mOutputProfiles[i]->mSupportedDevices.clear();
40    }
41    for (size_t i = 0; i < mInputProfiles.size(); i++) {
42        mInputProfiles[i]->mSupportedDevices.clear();
43    }
44    free((void *)mName);
45}
46
47status_t HwModule::loadInput(cnode *root)
48{
49    cnode *node = root->first_child;
50
51    sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SINK);
52
53    while (node) {
54        if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) {
55            profile->loadSamplingRates((char *)node->value);
56        } else if (strcmp(node->name, FORMATS_TAG) == 0) {
57            profile->loadFormats((char *)node->value);
58        } else if (strcmp(node->name, CHANNELS_TAG) == 0) {
59            profile->loadInChannels((char *)node->value);
60        } else if (strcmp(node->name, DEVICES_TAG) == 0) {
61            profile->mSupportedDevices.loadDevicesFromName((char *)node->value,
62                                                           mDeclaredDevices);
63        } else if (strcmp(node->name, FLAGS_TAG) == 0) {
64            profile->mFlags = ConfigParsingUtils::parseInputFlagNames((char *)node->value);
65        } else if (strcmp(node->name, GAINS_TAG) == 0) {
66            profile->loadGains(node);
67        }
68        node = node->next;
69    }
70    ALOGW_IF(profile->mSupportedDevices.isEmpty(),
71            "loadInput() invalid supported devices");
72    ALOGW_IF(profile->mChannelMasks.size() == 0,
73            "loadInput() invalid supported channel masks");
74    ALOGW_IF(profile->mSamplingRates.size() == 0,
75            "loadInput() invalid supported sampling rates");
76    ALOGW_IF(profile->mFormats.size() == 0,
77            "loadInput() invalid supported formats");
78    if (!profile->mSupportedDevices.isEmpty() &&
79            (profile->mChannelMasks.size() != 0) &&
80            (profile->mSamplingRates.size() != 0) &&
81            (profile->mFormats.size() != 0)) {
82
83        ALOGV("loadInput() adding input Supported Devices %04x",
84              profile->mSupportedDevices.types());
85
86        profile->attach(this);
87        mInputProfiles.add(profile);
88        return NO_ERROR;
89    } else {
90        return BAD_VALUE;
91    }
92}
93
94status_t HwModule::loadOutput(cnode *root)
95{
96    cnode *node = root->first_child;
97
98    sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SOURCE);
99
100    while (node) {
101        if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) {
102            profile->loadSamplingRates((char *)node->value);
103        } else if (strcmp(node->name, FORMATS_TAG) == 0) {
104            profile->loadFormats((char *)node->value);
105        } else if (strcmp(node->name, CHANNELS_TAG) == 0) {
106            profile->loadOutChannels((char *)node->value);
107        } else if (strcmp(node->name, DEVICES_TAG) == 0) {
108            profile->mSupportedDevices.loadDevicesFromName((char *)node->value,
109                                                           mDeclaredDevices);
110        } else if (strcmp(node->name, FLAGS_TAG) == 0) {
111            profile->mFlags = ConfigParsingUtils::parseOutputFlagNames((char *)node->value);
112        } else if (strcmp(node->name, GAINS_TAG) == 0) {
113            profile->loadGains(node);
114        }
115        node = node->next;
116    }
117    ALOGW_IF(profile->mSupportedDevices.isEmpty(),
118            "loadOutput() invalid supported devices");
119    ALOGW_IF(profile->mChannelMasks.size() == 0,
120            "loadOutput() invalid supported channel masks");
121    ALOGW_IF(profile->mSamplingRates.size() == 0,
122            "loadOutput() invalid supported sampling rates");
123    ALOGW_IF(profile->mFormats.size() == 0,
124            "loadOutput() invalid supported formats");
125    if (!profile->mSupportedDevices.isEmpty() &&
126            (profile->mChannelMasks.size() != 0) &&
127            (profile->mSamplingRates.size() != 0) &&
128            (profile->mFormats.size() != 0)) {
129
130        ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x",
131              profile->mSupportedDevices.types(), profile->mFlags);
132        profile->attach(this);
133        mOutputProfiles.add(profile);
134        return NO_ERROR;
135    } else {
136        return BAD_VALUE;
137    }
138}
139
140status_t HwModule::loadDevice(cnode *root)
141{
142    cnode *node = root->first_child;
143
144    audio_devices_t type = AUDIO_DEVICE_NONE;
145    while (node) {
146        if (strcmp(node->name, APM_DEVICE_TYPE) == 0) {
147            type = ConfigParsingUtils::parseDeviceNames((char *)node->value);
148            break;
149        }
150        node = node->next;
151    }
152    if (type == AUDIO_DEVICE_NONE ||
153            (!audio_is_input_device(type) && !audio_is_output_device(type))) {
154        ALOGW("loadDevice() bad type %08x", type);
155        return BAD_VALUE;
156    }
157    sp<DeviceDescriptor> deviceDesc = new DeviceDescriptor(String8(root->name), type);
158
159    node = root->first_child;
160    while (node) {
161        if (strcmp(node->name, APM_DEVICE_ADDRESS) == 0) {
162            deviceDesc->mAddress = String8((char *)node->value);
163        } else if (strcmp(node->name, CHANNELS_TAG) == 0) {
164            if (audio_is_input_device(type)) {
165                deviceDesc->loadInChannels((char *)node->value);
166            } else {
167                deviceDesc->loadOutChannels((char *)node->value);
168            }
169        } else if (strcmp(node->name, GAINS_TAG) == 0) {
170            deviceDesc->loadGains(node);
171        }
172        node = node->next;
173    }
174
175    ALOGV("loadDevice() adding device name %s type %08x address %s",
176          deviceDesc->mName.string(), type, deviceDesc->mAddress.string());
177
178    mDeclaredDevices.add(deviceDesc);
179
180    return NO_ERROR;
181}
182
183status_t HwModule::addOutputProfile(String8 name, const audio_config_t *config,
184                                                  audio_devices_t device, String8 address)
185{
186    sp<IOProfile> profile = new IOProfile(name, AUDIO_PORT_ROLE_SOURCE);
187
188    profile->mSamplingRates.add(config->sample_rate);
189    profile->mChannelMasks.add(config->channel_mask);
190    profile->mFormats.add(config->format);
191
192    sp<DeviceDescriptor> devDesc = new DeviceDescriptor(name, device);
193    devDesc->mAddress = address;
194    profile->mSupportedDevices.add(devDesc);
195
196    profile->attach(this);
197    mOutputProfiles.add(profile);
198
199    return NO_ERROR;
200}
201
202status_t HwModule::removeOutputProfile(String8 name)
203{
204    for (size_t i = 0; i < mOutputProfiles.size(); i++) {
205        if (mOutputProfiles[i]->mName == name) {
206            mOutputProfiles.removeAt(i);
207            break;
208        }
209    }
210
211    return NO_ERROR;
212}
213
214status_t HwModule::addInputProfile(String8 name, const audio_config_t *config,
215                                                  audio_devices_t device, String8 address)
216{
217    sp<IOProfile> profile = new IOProfile(name, AUDIO_PORT_ROLE_SINK);
218
219    profile->mSamplingRates.add(config->sample_rate);
220    profile->mChannelMasks.add(config->channel_mask);
221    profile->mFormats.add(config->format);
222
223    sp<DeviceDescriptor> devDesc = new DeviceDescriptor(name, device);
224    devDesc->mAddress = address;
225    profile->mSupportedDevices.add(devDesc);
226
227    ALOGV("addInputProfile() name %s rate %d mask 0x08", name.string(), config->sample_rate, config->channel_mask);
228
229    profile->attach(this);
230    mInputProfiles.add(profile);
231
232    return NO_ERROR;
233}
234
235status_t HwModule::removeInputProfile(String8 name)
236{
237    for (size_t i = 0; i < mInputProfiles.size(); i++) {
238        if (mInputProfiles[i]->mName == name) {
239            mInputProfiles.removeAt(i);
240            break;
241        }
242    }
243
244    return NO_ERROR;
245}
246
247
248void HwModule::dump(int fd)
249{
250    const size_t SIZE = 256;
251    char buffer[SIZE];
252    String8 result;
253
254    snprintf(buffer, SIZE, "  - name: %s\n", mName);
255    result.append(buffer);
256    snprintf(buffer, SIZE, "  - handle: %d\n", mHandle);
257    result.append(buffer);
258    snprintf(buffer, SIZE, "  - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF);
259    result.append(buffer);
260    write(fd, result.string(), result.size());
261    if (mOutputProfiles.size()) {
262        write(fd, "  - outputs:\n", strlen("  - outputs:\n"));
263        for (size_t i = 0; i < mOutputProfiles.size(); i++) {
264            snprintf(buffer, SIZE, "    output %zu:\n", i);
265            write(fd, buffer, strlen(buffer));
266            mOutputProfiles[i]->dump(fd);
267        }
268    }
269    if (mInputProfiles.size()) {
270        write(fd, "  - inputs:\n", strlen("  - inputs:\n"));
271        for (size_t i = 0; i < mInputProfiles.size(); i++) {
272            snprintf(buffer, SIZE, "    input %zu:\n", i);
273            write(fd, buffer, strlen(buffer));
274            mInputProfiles[i]->dump(fd);
275        }
276    }
277    if (mDeclaredDevices.size()) {
278        write(fd, "  - devices:\n", strlen("  - devices:\n"));
279        for (size_t i = 0; i < mDeclaredDevices.size(); i++) {
280            mDeclaredDevices[i]->dump(fd, 4, i);
281        }
282    }
283}
284
285sp <HwModule> HwModuleCollection::getModuleFromName(const char *name) const
286{
287    sp <HwModule> module;
288
289    for (size_t i = 0; i < size(); i++)
290    {
291        if (strcmp(itemAt(i)->mName, name) == 0) {
292            return itemAt(i);
293        }
294    }
295    return module;
296}
297
298
299sp <HwModule> HwModuleCollection::getModuleForDevice(audio_devices_t device) const
300{
301    sp <HwModule> module;
302
303    for (size_t i = 0; i < size(); i++) {
304        if (itemAt(i)->mHandle == 0) {
305            continue;
306        }
307        if (audio_is_output_device(device)) {
308            for (size_t j = 0; j < itemAt(i)->mOutputProfiles.size(); j++)
309            {
310                if (itemAt(i)->mOutputProfiles[j]->mSupportedDevices.types() & device) {
311                    return itemAt(i);
312                }
313            }
314        } else {
315            for (size_t j = 0; j < itemAt(i)->mInputProfiles.size(); j++) {
316                if (itemAt(i)->mInputProfiles[j]->mSupportedDevices.types() &
317                        device & ~AUDIO_DEVICE_BIT_IN) {
318                    return itemAt(i);
319                }
320            }
321        }
322    }
323    return module;
324}
325
326sp<DeviceDescriptor>  HwModuleCollection::getDeviceDescriptor(const audio_devices_t device,
327                                                              const char *device_address,
328                                                              const char *device_name) const
329{
330    String8 address = (device_address == NULL) ? String8("") : String8(device_address);
331    // handle legacy remote submix case where the address was not always specified
332    if (device_distinguishes_on_address(device) && (address.length() == 0)) {
333        address = String8("0");
334    }
335
336    for (size_t i = 0; i < size(); i++) {
337        const sp<HwModule> hwModule = itemAt(i);
338        if (hwModule->mHandle == 0) {
339            continue;
340        }
341        DeviceVector deviceList =
342                hwModule->mDeclaredDevices.getDevicesFromTypeAddr(device, address);
343        if (!deviceList.isEmpty()) {
344            return deviceList.itemAt(0);
345        }
346        deviceList = hwModule->mDeclaredDevices.getDevicesFromType(device);
347        if (!deviceList.isEmpty()) {
348            return deviceList.itemAt(0);
349        }
350    }
351
352    sp<DeviceDescriptor> devDesc =
353            new DeviceDescriptor(String8(device_name != NULL ? device_name : ""), device);
354    devDesc->mAddress = address;
355    return devDesc;
356}
357
358status_t HwModuleCollection::dump(int fd) const
359{
360    const size_t SIZE = 256;
361    char buffer[SIZE];
362
363    snprintf(buffer, SIZE, "\nHW Modules dump:\n");
364    write(fd, buffer, strlen(buffer));
365    for (size_t i = 0; i < size(); i++) {
366        snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1);
367        write(fd, buffer, strlen(buffer));
368        itemAt(i)->dump(fd);
369    }
370    return NO_ERROR;
371}
372
373} //namespace android
374