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/*
* 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 requied 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.
*
*/
#include <assert.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <gtest/gtest.h>
#include <linux/ioctl.h>
#define __force
#define __bitwise
#define __user
#include <sound/asound.h>
#include <sys/types.h>
#include <tinyalsa/asoundlib.h>
#define LOG_TAG "pcmtest"
#include <utils/Log.h>
#include <testUtil.h>
#define PCM_PREFIX "pcm"
#define MIXER_PREFIX "control"
#define TIMER_PREFIX "timer"
const char kSoundDir[] = "/dev/snd";
typedef struct PCM_NODE {
unsigned int card;
unsigned int device;
unsigned int flags;
} pcm_node_t;
static pcm_node_t *pcmnodes;
static unsigned int pcms;
static unsigned int cards;
static unsigned int mixers;
static unsigned int timers;
unsigned int getPcmNodes(void)
{
DIR *d;
struct dirent *de;
unsigned int pcount = 0;
d = opendir(kSoundDir);
if (d == 0)
return 0;
while ((de = readdir(d)) != NULL) {
if (de->d_name[0] == '.')
continue;
if (strstr(de->d_name, PCM_PREFIX))
pcount++;
}
closedir(d);
return pcount;
}
int getSndDev(unsigned int pcmdevs)
{
DIR *d;
struct dirent *de;
unsigned int prevcard = -1;
d = opendir(kSoundDir);
if (d == 0)
return -ENXIO;
pcmnodes = (pcm_node_t *)malloc(pcmdevs * sizeof(pcm_node_t));
if (!pcmnodes)
return -ENOMEM;
pcms = 0;
while ((de = readdir(d)) != NULL) {
if (de->d_name[0] == '.')
continue;
/* printf("%s\n", de->d_name); */
if (strstr(de->d_name, PCM_PREFIX)) {
char flags;
EXPECT_LE(pcms, pcmdevs) << "Too many PCMs";
if (pcms >= pcmdevs)
continue;
sscanf(de->d_name, PCM_PREFIX "C%uD%u", &(pcmnodes[pcms].card),
&(pcmnodes[pcms].device));
flags = de->d_name[strlen(de->d_name)-1];
if (flags == 'c') {
pcmnodes[pcms].flags = PCM_IN;
} else if(flags == 'p') {
pcmnodes[pcms].flags = PCM_OUT;
} else {
pcmnodes[pcms].flags = -1;
testPrintI("Unknown PCM type = %c", flags);
}
if (prevcard != pcmnodes[pcms].card)
cards++;
prevcard = pcmnodes[pcms].card;
pcms++;
continue;
}
if (strstr(de->d_name, MIXER_PREFIX)) {
unsigned int mixer = -1;
sscanf(de->d_name, MIXER_PREFIX "C%u", &mixer);
mixers++;
continue;
}
if (strstr(de->d_name, TIMER_PREFIX)) {
timers++;
continue;
}
}
closedir(d);
return 0;
}
int getPcmParams(unsigned int i)
{
struct pcm_params *params;
unsigned int min;
unsigned int max;
params = pcm_params_get(pcmnodes[i].card, pcmnodes[i].device,
pcmnodes[i].flags);
if (params == NULL)
return -ENODEV;
min = pcm_params_get_min(params, PCM_PARAM_RATE);
max = pcm_params_get_max(params, PCM_PARAM_RATE);
EXPECT_LE(min, max);
/* printf(" Rate:\tmin=%uHz\tmax=%uHz\n", min, max); */
min = pcm_params_get_min(params, PCM_PARAM_CHANNELS);
max = pcm_params_get_max(params, PCM_PARAM_CHANNELS);
EXPECT_LE(min, max);
/* printf(" Channels:\tmin=%u\t\tmax=%u\n", min, max); */
min = pcm_params_get_min(params, PCM_PARAM_SAMPLE_BITS);
max = pcm_params_get_max(params, PCM_PARAM_SAMPLE_BITS);
EXPECT_LE(min, max);
/* printf(" Sample bits:\tmin=%u\t\tmax=%u\n", min, max); */
min = pcm_params_get_min(params, PCM_PARAM_PERIOD_SIZE);
max = pcm_params_get_max(params, PCM_PARAM_PERIOD_SIZE);
EXPECT_LE(min, max);
/* printf(" Period size:\tmin=%u\t\tmax=%u\n", min, max); */
min = pcm_params_get_min(params, PCM_PARAM_PERIODS);
max = pcm_params_get_max(params, PCM_PARAM_PERIODS);
EXPECT_LE(min, max);
/* printf("Period count:\tmin=%u\t\tmax=%u\n", min, max); */
pcm_params_free(params);
return 0;
}
TEST(pcmtest, CheckAudioDir) {
pcms = getPcmNodes();
ASSERT_GT(pcms, 0U);
}
TEST(pcmtest, GetSoundDevs) {
int err = getSndDev(pcms);
testPrintI(" DEVICES = PCMS:%u CARDS:%u MIXERS:%u TIMERS:%u",
pcms, cards, mixers, timers);
ASSERT_EQ(0, err);
}
TEST(pcmtest, CheckPcmSanity0) {
ASSERT_NE(0U, pcms);
}
TEST(pcmtest, CheckPcmSanity1) {
EXPECT_NE(1U, pcms % 2);
}
TEST(pcmtests, CheckMixerSanity) {
ASSERT_NE(0U, mixers);
ASSERT_EQ(mixers, cards);
}
TEST(pcmtest, CheckTimesSanity0) {
ASSERT_NE(0U, timers);
}
TEST(pcmtest, CheckTimesSanity1) {
EXPECT_EQ(1U, timers);
}
TEST(pcmtest, CheckPcmDevices) {
for (unsigned int i = 0; i < pcms; i++) {
EXPECT_EQ(0, getPcmParams(i));
}
free(pcmnodes);
}
TEST(pcmtest, CheckMixerDevices) {
struct mixer *mixer;
for (unsigned int i = 0; i < mixers; i++) {
mixer = mixer_open(i);
EXPECT_TRUE(mixer != NULL);
if (mixer)
mixer_close(mixer);
}
}
TEST(pcmtest, CheckTimer) {
int ver = 0;
int fd = open("/dev/snd/timer", O_RDWR | O_NONBLOCK);
ASSERT_GE(fd, 0);
int ret = ioctl(fd, SNDRV_TIMER_IOCTL_PVERSION, &ver);
EXPECT_EQ(0, ret);
testPrintI(" Timer Version = 0x%x", ver);
close(fd);
}
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