1 /*
2 * Copyright (C) 2013 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 requied 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
18 #include <assert.h>
19 #include <dirent.h>
20 #include <errno.h>
21 #include <fcntl.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <gtest/gtest.h>
25 #include <linux/ioctl.h>
26 #include <sound/asound.h>
27 #include <sys/types.h>
28 #include <tinyalsa/asoundlib.h>
29
30 #define LOG_TAG "pcmtest"
31 #include <utils/Log.h>
32 #include <testUtil.h>
33
34 #define PCM_PREFIX "pcm"
35 #define MIXER_PREFIX "control"
36 #define TIMER_PREFIX "timer"
37
38 const char kSoundDir[] = "/dev/snd";
39
40 typedef struct PCM_NODE {
41 unsigned int card;
42 unsigned int device;
43 unsigned int flags;
44 } pcm_node_t;
45
46 static pcm_node_t *pcmnodes;
47
48 static unsigned int pcms;
49 static unsigned int cards;
50 static unsigned int mixers;
51 static unsigned int timers;
52
getPcmNodes(void)53 unsigned int getPcmNodes(void)
54 {
55 DIR *d;
56 struct dirent *de;
57 unsigned int pcount = 0;
58
59 d = opendir(kSoundDir);
60 if (d == 0)
61 return 0;
62 while ((de = readdir(d)) != NULL) {
63 if (de->d_name[0] == '.')
64 continue;
65 if (strstr(de->d_name, PCM_PREFIX))
66 pcount++;
67 }
68 closedir(d);
69 return pcount;
70 }
71
getSndDev(unsigned int pcmdevs)72 int getSndDev(unsigned int pcmdevs)
73 {
74 DIR *d;
75 struct dirent *de;
76 unsigned int prevcard = -1;
77
78 d = opendir(kSoundDir);
79 if (d == 0)
80 return -ENXIO;
81 pcmnodes = (pcm_node_t *)malloc(pcmdevs * sizeof(pcm_node_t));
82 if (!pcmnodes)
83 return -ENOMEM;
84 pcms = 0;
85 while ((de = readdir(d)) != NULL) {
86 if (de->d_name[0] == '.')
87 continue;
88 /* printf("%s\n", de->d_name); */
89 if (strstr(de->d_name, PCM_PREFIX)) {
90 char flags;
91
92 EXPECT_LE(pcms, pcmdevs) << "Too many PCMs";
93 if (pcms >= pcmdevs)
94 continue;
95 sscanf(de->d_name, PCM_PREFIX "C%uD%u", &(pcmnodes[pcms].card),
96 &(pcmnodes[pcms].device));
97 flags = de->d_name[strlen(de->d_name)-1];
98 if (flags == 'c') {
99 pcmnodes[pcms].flags = PCM_IN;
100 } else if(flags == 'p') {
101 pcmnodes[pcms].flags = PCM_OUT;
102 } else {
103 pcmnodes[pcms].flags = -1;
104 testPrintI("Unknown PCM type = %c", flags);
105 }
106 if (prevcard != pcmnodes[pcms].card)
107 cards++;
108 prevcard = pcmnodes[pcms].card;
109 pcms++;
110 continue;
111 }
112 if (strstr(de->d_name, MIXER_PREFIX)) {
113 unsigned int mixer = -1;
114 sscanf(de->d_name, MIXER_PREFIX "C%u", &mixer);
115 mixers++;
116 continue;
117 }
118 if (strstr(de->d_name, TIMER_PREFIX)) {
119 timers++;
120 continue;
121 }
122 }
123 closedir(d);
124 return 0;
125 }
126
getPcmParams(unsigned int i)127 int getPcmParams(unsigned int i)
128 {
129 struct pcm_params *params;
130 unsigned int min;
131 unsigned int max;
132
133 params = pcm_params_get(pcmnodes[i].card, pcmnodes[i].device,
134 pcmnodes[i].flags);
135 if (params == NULL)
136 return -ENODEV;
137
138 min = pcm_params_get_min(params, PCM_PARAM_RATE);
139 max = pcm_params_get_max(params, PCM_PARAM_RATE);
140 EXPECT_LE(min, max);
141 /* printf(" Rate:\tmin=%uHz\tmax=%uHz\n", min, max); */
142 min = pcm_params_get_min(params, PCM_PARAM_CHANNELS);
143 max = pcm_params_get_max(params, PCM_PARAM_CHANNELS);
144 EXPECT_LE(min, max);
145 /* printf(" Channels:\tmin=%u\t\tmax=%u\n", min, max); */
146 min = pcm_params_get_min(params, PCM_PARAM_SAMPLE_BITS);
147 max = pcm_params_get_max(params, PCM_PARAM_SAMPLE_BITS);
148 EXPECT_LE(min, max);
149 /* printf(" Sample bits:\tmin=%u\t\tmax=%u\n", min, max); */
150 min = pcm_params_get_min(params, PCM_PARAM_PERIOD_SIZE);
151 max = pcm_params_get_max(params, PCM_PARAM_PERIOD_SIZE);
152 EXPECT_LE(min, max);
153 /* printf(" Period size:\tmin=%u\t\tmax=%u\n", min, max); */
154 min = pcm_params_get_min(params, PCM_PARAM_PERIODS);
155 max = pcm_params_get_max(params, PCM_PARAM_PERIODS);
156 EXPECT_LE(min, max);
157 /* printf("Period count:\tmin=%u\t\tmax=%u\n", min, max); */
158
159 pcm_params_free(params);
160 return 0;
161 }
162
TEST(pcmtest,CheckAudioDir)163 TEST(pcmtest, CheckAudioDir) {
164 pcms = getPcmNodes();
165 ASSERT_GT(pcms, 0U);
166 }
167
TEST(pcmtest,GetSoundDevs)168 TEST(pcmtest, GetSoundDevs) {
169 int err = getSndDev(pcms);
170 testPrintI(" DEVICES = PCMS:%u CARDS:%u MIXERS:%u TIMERS:%u",
171 pcms, cards, mixers, timers);
172 ASSERT_EQ(0, err);
173 }
174
TEST(pcmtest,CheckPcmSanity0)175 TEST(pcmtest, CheckPcmSanity0) {
176 ASSERT_NE(0U, pcms);
177 }
178
TEST(pcmtest,CheckPcmSanity1)179 TEST(pcmtest, CheckPcmSanity1) {
180 EXPECT_NE(1U, pcms % 2);
181 }
182
TEST(pcmtests,CheckMixerSanity)183 TEST(pcmtests, CheckMixerSanity) {
184 ASSERT_NE(0U, mixers);
185 ASSERT_EQ(mixers, cards);
186 }
187
TEST(pcmtest,CheckTimesSanity0)188 TEST(pcmtest, CheckTimesSanity0) {
189 ASSERT_NE(0U, timers);
190 }
191
TEST(pcmtest,CheckTimesSanity1)192 TEST(pcmtest, CheckTimesSanity1) {
193 EXPECT_EQ(1U, timers);
194 }
195
TEST(pcmtest,CheckPcmDevices)196 TEST(pcmtest, CheckPcmDevices) {
197 for (unsigned int i = 0; i < pcms; i++) {
198 EXPECT_EQ(0, getPcmParams(i));
199 }
200 free(pcmnodes);
201 }
202
TEST(pcmtest,CheckMixerDevices)203 TEST(pcmtest, CheckMixerDevices) {
204 struct mixer *mixer;
205 for (unsigned int i = 0; i < mixers; i++) {
206 mixer = mixer_open(i);
207 EXPECT_TRUE(mixer != NULL);
208 if (mixer)
209 mixer_close(mixer);
210 }
211 }
212
TEST(pcmtest,CheckTimer)213 TEST(pcmtest, CheckTimer) {
214 int ver = 0;
215 int fd = open("/dev/snd/timer", O_RDWR | O_NONBLOCK);
216 ASSERT_GE(fd, 0);
217 int ret = ioctl(fd, SNDRV_TIMER_IOCTL_PVERSION, &ver);
218 EXPECT_EQ(0, ret);
219 testPrintI(" Timer Version = 0x%x", ver);
220 close(fd);
221 }
222