619 lines
17 KiB
C
619 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// kselftest for the ALSA PCM API
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//
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// Original author: Jaroslav Kysela <perex@perex.cz>
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// Copyright (c) 2022 Red Hat Inc.
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// This test will iterate over all cards detected in the system, exercising
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// every PCM device it can find. This may conflict with other system
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// software if there is audio activity so is best run on a system with a
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// minimal active userspace.
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <errno.h>
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#include <assert.h>
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#include <pthread.h>
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#include "../kselftest.h"
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#include "alsa-local.h"
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typedef struct timespec timestamp_t;
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struct card_data {
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int card;
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pthread_t thread;
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struct card_data *next;
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};
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struct card_data *card_list = NULL;
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struct pcm_data {
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snd_pcm_t *handle;
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int card;
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int device;
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int subdevice;
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snd_pcm_stream_t stream;
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snd_config_t *pcm_config;
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struct pcm_data *next;
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};
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struct pcm_data *pcm_list = NULL;
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int num_missing = 0;
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struct pcm_data *pcm_missing = NULL;
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snd_config_t *default_pcm_config;
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/* Lock while reporting results since kselftest doesn't */
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pthread_mutex_t results_lock = PTHREAD_MUTEX_INITIALIZER;
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enum test_class {
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TEST_CLASS_DEFAULT,
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TEST_CLASS_SYSTEM,
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};
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void timestamp_now(timestamp_t *tstamp)
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{
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if (clock_gettime(CLOCK_MONOTONIC_RAW, tstamp))
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ksft_exit_fail_msg("clock_get_time\n");
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}
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long long timestamp_diff_ms(timestamp_t *tstamp)
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{
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timestamp_t now, diff;
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timestamp_now(&now);
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if (tstamp->tv_nsec > now.tv_nsec) {
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diff.tv_sec = now.tv_sec - tstamp->tv_sec - 1;
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diff.tv_nsec = (now.tv_nsec + 1000000000L) - tstamp->tv_nsec;
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} else {
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diff.tv_sec = now.tv_sec - tstamp->tv_sec;
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diff.tv_nsec = now.tv_nsec - tstamp->tv_nsec;
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}
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return (diff.tv_sec * 1000) + ((diff.tv_nsec + 500000L) / 1000000L);
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}
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static long device_from_id(snd_config_t *node)
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{
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const char *id;
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char *end;
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long v;
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if (snd_config_get_id(node, &id))
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ksft_exit_fail_msg("snd_config_get_id\n");
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errno = 0;
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v = strtol(id, &end, 10);
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if (errno || *end)
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return -1;
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return v;
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}
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static void missing_device(int card, int device, int subdevice, snd_pcm_stream_t stream)
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{
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struct pcm_data *pcm_data;
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for (pcm_data = pcm_list; pcm_data != NULL; pcm_data = pcm_data->next) {
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if (pcm_data->card != card)
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continue;
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if (pcm_data->device != device)
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continue;
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if (pcm_data->subdevice != subdevice)
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continue;
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if (pcm_data->stream != stream)
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continue;
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return;
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}
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pcm_data = calloc(1, sizeof(*pcm_data));
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if (!pcm_data)
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ksft_exit_fail_msg("Out of memory\n");
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pcm_data->card = card;
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pcm_data->device = device;
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pcm_data->subdevice = subdevice;
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pcm_data->stream = stream;
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pcm_data->next = pcm_missing;
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pcm_missing = pcm_data;
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num_missing++;
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}
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static void missing_devices(int card, snd_config_t *card_config)
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{
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snd_config_t *pcm_config, *node1, *node2;
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snd_config_iterator_t i1, i2, next1, next2;
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int device, subdevice;
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pcm_config = conf_get_subtree(card_config, "pcm", NULL);
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if (!pcm_config)
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return;
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snd_config_for_each(i1, next1, pcm_config) {
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node1 = snd_config_iterator_entry(i1);
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device = device_from_id(node1);
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if (device < 0)
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continue;
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if (snd_config_get_type(node1) != SND_CONFIG_TYPE_COMPOUND)
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continue;
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snd_config_for_each(i2, next2, node1) {
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node2 = snd_config_iterator_entry(i2);
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subdevice = device_from_id(node2);
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if (subdevice < 0)
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continue;
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if (conf_get_subtree(node2, "PLAYBACK", NULL))
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missing_device(card, device, subdevice, SND_PCM_STREAM_PLAYBACK);
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if (conf_get_subtree(node2, "CAPTURE", NULL))
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missing_device(card, device, subdevice, SND_PCM_STREAM_CAPTURE);
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}
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}
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}
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static void find_pcms(void)
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{
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char name[32], key[64];
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int card, dev, subdev, count, direction, err;
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snd_pcm_stream_t stream;
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struct pcm_data *pcm_data;
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snd_ctl_t *handle;
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snd_pcm_info_t *pcm_info;
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snd_config_t *config, *card_config, *pcm_config;
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struct card_data *card_data;
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snd_pcm_info_alloca(&pcm_info);
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card = -1;
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if (snd_card_next(&card) < 0 || card < 0)
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return;
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config = get_alsalib_config();
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while (card >= 0) {
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sprintf(name, "hw:%d", card);
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err = snd_ctl_open_lconf(&handle, name, 0, config);
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if (err < 0) {
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ksft_print_msg("Failed to get hctl for card %d: %s\n",
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card, snd_strerror(err));
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goto next_card;
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}
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card_config = conf_by_card(card);
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card_data = calloc(1, sizeof(*card_data));
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if (!card_data)
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ksft_exit_fail_msg("Out of memory\n");
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card_data->card = card;
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card_data->next = card_list;
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card_list = card_data;
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dev = -1;
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while (1) {
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if (snd_ctl_pcm_next_device(handle, &dev) < 0)
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ksft_exit_fail_msg("snd_ctl_pcm_next_device\n");
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if (dev < 0)
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break;
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for (direction = 0; direction < 2; direction++) {
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stream = direction ? SND_PCM_STREAM_CAPTURE : SND_PCM_STREAM_PLAYBACK;
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sprintf(key, "pcm.%d.%s", dev, snd_pcm_stream_name(stream));
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pcm_config = conf_get_subtree(card_config, key, NULL);
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if (conf_get_bool(card_config, key, "skip", false)) {
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ksft_print_msg("skipping pcm %d.%d.%s\n", card, dev, snd_pcm_stream_name(stream));
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continue;
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}
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snd_pcm_info_set_device(pcm_info, dev);
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snd_pcm_info_set_subdevice(pcm_info, 0);
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snd_pcm_info_set_stream(pcm_info, stream);
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err = snd_ctl_pcm_info(handle, pcm_info);
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if (err == -ENOENT)
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continue;
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if (err < 0)
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ksft_exit_fail_msg("snd_ctl_pcm_info: %d:%d:%d\n",
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dev, 0, stream);
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count = snd_pcm_info_get_subdevices_count(pcm_info);
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for (subdev = 0; subdev < count; subdev++) {
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sprintf(key, "pcm.%d.%d.%s", dev, subdev, snd_pcm_stream_name(stream));
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if (conf_get_bool(card_config, key, "skip", false)) {
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ksft_print_msg("skipping pcm %d.%d.%d.%s\n", card, dev,
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subdev, snd_pcm_stream_name(stream));
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continue;
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}
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pcm_data = calloc(1, sizeof(*pcm_data));
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if (!pcm_data)
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ksft_exit_fail_msg("Out of memory\n");
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pcm_data->card = card;
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pcm_data->device = dev;
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pcm_data->subdevice = subdev;
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pcm_data->stream = stream;
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pcm_data->pcm_config = conf_get_subtree(card_config, key, NULL);
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pcm_data->next = pcm_list;
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pcm_list = pcm_data;
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}
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}
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}
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/* check for missing devices */
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missing_devices(card, card_config);
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next_card:
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snd_ctl_close(handle);
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if (snd_card_next(&card) < 0) {
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ksft_print_msg("snd_card_next");
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break;
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}
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}
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snd_config_delete(config);
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}
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static void test_pcm_time(struct pcm_data *data, enum test_class class,
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const char *test_name, snd_config_t *pcm_cfg)
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{
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char name[64], key[128], msg[256];
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const char *cs;
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int i, err;
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snd_pcm_t *handle = NULL;
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snd_pcm_access_t access = SND_PCM_ACCESS_RW_INTERLEAVED;
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snd_pcm_format_t format, old_format;
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const char *alt_formats[8];
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unsigned char *samples = NULL;
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snd_pcm_sframes_t frames;
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long long ms;
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long rate, channels, period_size, buffer_size;
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unsigned int rrate;
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snd_pcm_uframes_t rperiod_size, rbuffer_size, start_threshold;
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timestamp_t tstamp;
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bool pass = false;
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snd_pcm_hw_params_t *hw_params;
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snd_pcm_sw_params_t *sw_params;
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const char *test_class_name;
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bool skip = true;
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const char *desc;
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switch (class) {
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case TEST_CLASS_DEFAULT:
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test_class_name = "default";
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break;
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case TEST_CLASS_SYSTEM:
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test_class_name = "system";
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break;
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default:
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ksft_exit_fail_msg("Unknown test class %d\n", class);
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break;
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}
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desc = conf_get_string(pcm_cfg, "description", NULL, NULL);
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if (desc)
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ksft_print_msg("%s.%s.%d.%d.%d.%s - %s\n",
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test_class_name, test_name,
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data->card, data->device, data->subdevice,
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snd_pcm_stream_name(data->stream),
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desc);
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snd_pcm_hw_params_alloca(&hw_params);
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snd_pcm_sw_params_alloca(&sw_params);
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cs = conf_get_string(pcm_cfg, "format", NULL, "S16_LE");
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format = snd_pcm_format_value(cs);
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if (format == SND_PCM_FORMAT_UNKNOWN)
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ksft_exit_fail_msg("Wrong format '%s'\n", cs);
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conf_get_string_array(pcm_cfg, "alt_formats", NULL,
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alt_formats, ARRAY_SIZE(alt_formats), NULL);
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rate = conf_get_long(pcm_cfg, "rate", NULL, 48000);
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channels = conf_get_long(pcm_cfg, "channels", NULL, 2);
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period_size = conf_get_long(pcm_cfg, "period_size", NULL, 4096);
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buffer_size = conf_get_long(pcm_cfg, "buffer_size", NULL, 16384);
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samples = malloc((rate * channels * snd_pcm_format_physical_width(format)) / 8);
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if (!samples)
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ksft_exit_fail_msg("Out of memory\n");
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snd_pcm_format_set_silence(format, samples, rate * channels);
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sprintf(name, "hw:%d,%d,%d", data->card, data->device, data->subdevice);
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err = snd_pcm_open(&handle, name, data->stream, 0);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "Failed to get pcm handle: %s", snd_strerror(err));
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goto __close;
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}
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err = snd_pcm_hw_params_any(handle, hw_params);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_hw_params_any: %s", snd_strerror(err));
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goto __close;
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}
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err = snd_pcm_hw_params_set_rate_resample(handle, hw_params, 0);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_rate_resample: %s", snd_strerror(err));
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goto __close;
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}
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err = snd_pcm_hw_params_set_access(handle, hw_params, access);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_access %s: %s",
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snd_pcm_access_name(access), snd_strerror(err));
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goto __close;
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}
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i = -1;
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__format:
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err = snd_pcm_hw_params_set_format(handle, hw_params, format);
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if (err < 0) {
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i++;
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if (i < ARRAY_SIZE(alt_formats) && alt_formats[i]) {
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old_format = format;
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format = snd_pcm_format_value(alt_formats[i]);
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if (format != SND_PCM_FORMAT_UNKNOWN) {
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ksft_print_msg("%s.%d.%d.%d.%s.%s format %s -> %s\n",
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test_name,
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data->card, data->device, data->subdevice,
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snd_pcm_stream_name(data->stream),
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snd_pcm_access_name(access),
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snd_pcm_format_name(old_format),
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snd_pcm_format_name(format));
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samples = realloc(samples, (rate * channels *
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snd_pcm_format_physical_width(format)) / 8);
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if (!samples)
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ksft_exit_fail_msg("Out of memory\n");
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snd_pcm_format_set_silence(format, samples, rate * channels);
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goto __format;
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}
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}
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snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_format %s: %s",
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snd_pcm_format_name(format), snd_strerror(err));
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goto __close;
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}
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err = snd_pcm_hw_params_set_channels(handle, hw_params, channels);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_channels %ld: %s", channels, snd_strerror(err));
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goto __close;
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}
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rrate = rate;
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err = snd_pcm_hw_params_set_rate_near(handle, hw_params, &rrate, 0);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_rate %ld: %s", rate, snd_strerror(err));
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goto __close;
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}
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if (rrate != rate) {
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snprintf(msg, sizeof(msg), "rate mismatch %ld != %ld", rate, rrate);
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goto __close;
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}
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rperiod_size = period_size;
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err = snd_pcm_hw_params_set_period_size_near(handle, hw_params, &rperiod_size, 0);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_period_size %ld: %s", period_size, snd_strerror(err));
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goto __close;
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}
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rbuffer_size = buffer_size;
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err = snd_pcm_hw_params_set_buffer_size_near(handle, hw_params, &rbuffer_size);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_buffer_size %ld: %s", buffer_size, snd_strerror(err));
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goto __close;
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}
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err = snd_pcm_hw_params(handle, hw_params);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_hw_params: %s", snd_strerror(err));
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goto __close;
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}
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|
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err = snd_pcm_sw_params_current(handle, sw_params);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_sw_params_current: %s", snd_strerror(err));
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goto __close;
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}
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if (data->stream == SND_PCM_STREAM_PLAYBACK) {
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start_threshold = (rbuffer_size / rperiod_size) * rperiod_size;
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} else {
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start_threshold = rperiod_size;
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}
|
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err = snd_pcm_sw_params_set_start_threshold(handle, sw_params, start_threshold);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_sw_params_set_start_threshold %ld: %s", (long)start_threshold, snd_strerror(err));
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goto __close;
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}
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err = snd_pcm_sw_params_set_avail_min(handle, sw_params, rperiod_size);
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if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_sw_params_set_avail_min %ld: %s", (long)rperiod_size, snd_strerror(err));
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|
goto __close;
|
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}
|
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err = snd_pcm_sw_params(handle, sw_params);
|
|
if (err < 0) {
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snprintf(msg, sizeof(msg), "snd_pcm_sw_params: %s", snd_strerror(err));
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goto __close;
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|
}
|
|
|
|
ksft_print_msg("%s.%s.%d.%d.%d.%s hw_params.%s.%s.%ld.%ld.%ld.%ld sw_params.%ld\n",
|
|
test_class_name, test_name,
|
|
data->card, data->device, data->subdevice,
|
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snd_pcm_stream_name(data->stream),
|
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snd_pcm_access_name(access),
|
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snd_pcm_format_name(format),
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(long)rate, (long)channels,
|
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(long)rperiod_size, (long)rbuffer_size,
|
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(long)start_threshold);
|
|
|
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/* Set all the params, actually run the test */
|
|
skip = false;
|
|
|
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timestamp_now(&tstamp);
|
|
for (i = 0; i < 4; i++) {
|
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if (data->stream == SND_PCM_STREAM_PLAYBACK) {
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frames = snd_pcm_writei(handle, samples, rate);
|
|
if (frames < 0) {
|
|
snprintf(msg, sizeof(msg),
|
|
"Write failed: expected %d, wrote %li", rate, frames);
|
|
goto __close;
|
|
}
|
|
if (frames < rate) {
|
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snprintf(msg, sizeof(msg),
|
|
"expected %d, wrote %li", rate, frames);
|
|
goto __close;
|
|
}
|
|
} else {
|
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frames = snd_pcm_readi(handle, samples, rate);
|
|
if (frames < 0) {
|
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snprintf(msg, sizeof(msg),
|
|
"expected %d, wrote %li", rate, frames);
|
|
goto __close;
|
|
}
|
|
if (frames < rate) {
|
|
snprintf(msg, sizeof(msg),
|
|
"expected %d, wrote %li", rate, frames);
|
|
goto __close;
|
|
}
|
|
}
|
|
}
|
|
|
|
snd_pcm_drain(handle);
|
|
ms = timestamp_diff_ms(&tstamp);
|
|
if (ms < 3900 || ms > 4100) {
|
|
snprintf(msg, sizeof(msg), "time mismatch: expected 4000ms got %lld", ms);
|
|
goto __close;
|
|
}
|
|
|
|
msg[0] = '\0';
|
|
pass = true;
|
|
__close:
|
|
pthread_mutex_lock(&results_lock);
|
|
|
|
switch (class) {
|
|
case TEST_CLASS_SYSTEM:
|
|
test_class_name = "system";
|
|
/*
|
|
* Anything specified as specific to this system
|
|
* should always be supported.
|
|
*/
|
|
ksft_test_result(!skip, "%s.%s.%d.%d.%d.%s.params\n",
|
|
test_class_name, test_name,
|
|
data->card, data->device, data->subdevice,
|
|
snd_pcm_stream_name(data->stream));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!skip)
|
|
ksft_test_result(pass, "%s.%s.%d.%d.%d.%s%s%s\n",
|
|
test_class_name, test_name,
|
|
data->card, data->device, data->subdevice,
|
|
snd_pcm_stream_name(data->stream),
|
|
msg[0] ? " " : "", msg);
|
|
else
|
|
ksft_test_result_skip("%s.%s.%d.%d.%d.%s%s%s\n",
|
|
test_class_name, test_name,
|
|
data->card, data->device, data->subdevice,
|
|
snd_pcm_stream_name(data->stream),
|
|
msg[0] ? " " : "", msg);
|
|
|
|
pthread_mutex_unlock(&results_lock);
|
|
|
|
free(samples);
|
|
if (handle)
|
|
snd_pcm_close(handle);
|
|
}
|
|
|
|
void run_time_tests(struct pcm_data *pcm, enum test_class class,
|
|
snd_config_t *cfg)
|
|
{
|
|
const char *test_name, *test_type;
|
|
snd_config_t *pcm_cfg;
|
|
snd_config_iterator_t i, next;
|
|
|
|
if (!cfg)
|
|
return;
|
|
|
|
cfg = conf_get_subtree(cfg, "test", NULL);
|
|
if (cfg == NULL)
|
|
return;
|
|
|
|
snd_config_for_each(i, next, cfg) {
|
|
pcm_cfg = snd_config_iterator_entry(i);
|
|
if (snd_config_get_id(pcm_cfg, &test_name) < 0)
|
|
ksft_exit_fail_msg("snd_config_get_id\n");
|
|
test_type = conf_get_string(pcm_cfg, "type", NULL, "time");
|
|
if (strcmp(test_type, "time") == 0)
|
|
test_pcm_time(pcm, class, test_name, pcm_cfg);
|
|
else
|
|
ksft_exit_fail_msg("unknown test type '%s'\n", test_type);
|
|
}
|
|
}
|
|
|
|
void *card_thread(void *data)
|
|
{
|
|
struct card_data *card = data;
|
|
struct pcm_data *pcm;
|
|
|
|
for (pcm = pcm_list; pcm != NULL; pcm = pcm->next) {
|
|
if (pcm->card != card->card)
|
|
continue;
|
|
|
|
run_time_tests(pcm, TEST_CLASS_DEFAULT, default_pcm_config);
|
|
run_time_tests(pcm, TEST_CLASS_SYSTEM, pcm->pcm_config);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
struct card_data *card;
|
|
struct pcm_data *pcm;
|
|
snd_config_t *global_config, *cfg, *pcm_cfg;
|
|
int num_pcm_tests = 0, num_tests, num_std_pcm_tests;
|
|
int ret;
|
|
void *thread_ret;
|
|
|
|
ksft_print_header();
|
|
|
|
global_config = conf_load_from_file("pcm-test.conf");
|
|
default_pcm_config = conf_get_subtree(global_config, "pcm", NULL);
|
|
if (default_pcm_config == NULL)
|
|
ksft_exit_fail_msg("default pcm test configuration (pcm compound) is missing\n");
|
|
|
|
conf_load();
|
|
|
|
find_pcms();
|
|
|
|
num_std_pcm_tests = conf_get_count(default_pcm_config, "test", NULL);
|
|
|
|
for (pcm = pcm_list; pcm != NULL; pcm = pcm->next) {
|
|
num_pcm_tests += num_std_pcm_tests;
|
|
cfg = pcm->pcm_config;
|
|
if (cfg == NULL)
|
|
continue;
|
|
/* Setting params is reported as a separate test */
|
|
num_tests = conf_get_count(cfg, "test", NULL) * 2;
|
|
if (num_tests > 0)
|
|
num_pcm_tests += num_tests;
|
|
}
|
|
|
|
ksft_set_plan(num_missing + num_pcm_tests);
|
|
|
|
for (pcm = pcm_missing; pcm != NULL; pcm = pcm->next) {
|
|
ksft_test_result(false, "test.missing.%d.%d.%d.%s\n",
|
|
pcm->card, pcm->device, pcm->subdevice,
|
|
snd_pcm_stream_name(pcm->stream));
|
|
}
|
|
|
|
for (card = card_list; card != NULL; card = card->next) {
|
|
ret = pthread_create(&card->thread, NULL, card_thread, card);
|
|
if (ret != 0) {
|
|
ksft_exit_fail_msg("Failed to create card %d thread: %d (%s)\n",
|
|
card->card, ret,
|
|
strerror(errno));
|
|
}
|
|
}
|
|
|
|
for (card = card_list; card != NULL; card = card->next) {
|
|
ret = pthread_join(card->thread, &thread_ret);
|
|
if (ret != 0) {
|
|
ksft_exit_fail_msg("Failed to join card %d thread: %d (%s)\n",
|
|
card->card, ret,
|
|
strerror(errno));
|
|
}
|
|
}
|
|
|
|
snd_config_delete(global_config);
|
|
conf_free();
|
|
|
|
ksft_exit_pass();
|
|
|
|
return 0;
|
|
}
|