#include <audio.h>
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h> 
#include <string.h> 
#include <unistd.h>

static void
print_audio_info(struct audio_device *d)
{
	struct audio_channel *c;

	printf("name=%s\n", d->name);
	printf("desc=%s\n", d->desc);
	printf("unit=%d\n", d->unit);
	printf("devnode=%s\n", d->devnode);
	printf("is_default=%d\n", d->is_default);
	printf("format=%#08x\n", d->format);
	printf("rate=%d\n", d->rate);
	printf("channels=%d\n", d->channels);
	if (d->mixer != NULL)
		printf("mixer=%s\n", d->mixer->name);

	printf("caps=%#08x\n", d->caps);
	if (d->caps & PCM_CAP_TRIGGER)
		printf("\tPCM_CAP_TRIGGER (Trigger start)\n");
	if (d->caps & PCM_CAP_MMAP)
		printf("\tPCM_CAP_MMAP (Memory mapping)\n");
	if (d->caps & PCM_CAP_MULTI)
		printf("\tPCM_CAP_MULTI (Multiple open)\n");
	if (d->caps & PCM_CAP_INPUT)
		printf("\tPCM_CAP_INPUT (Recording)\n");
	if (d->caps & PCM_CAP_OUTPUT)
		printf("\tPCM_CAP_OUTPUT (Playback)\n");
	if (d->caps & PCM_CAP_DUPLEX)
		printf("\tPCM_CAP_DUPLEX (Duplex)\n");
	if (d->caps & PCM_CAP_VIRTUAL)
		printf("\tPCM_CAP_VIRTUAL (Virtual device)\n");
	if (d->caps & PCM_CAP_ANALOGIN)
		printf("\tPCM_CAP_ANALOGIN (Analog input)\n");
	if (d->caps & PCM_CAP_ANALOGOUT)
		printf("\tPCM_CAP_ANALOGOUT (Analog output)\n");
	if (d->caps & PCM_CAP_DIGITALIN)
		printf("\tPCM_CAP_DIGITALIN (Digital input)\n");
	if (d->caps & PCM_CAP_DIGITALOUT)
		printf("\tPCM_CAP_DIGITALOUT (Digital output)\n");
	if (d->caps & PCM_CAP_REALTIME)
		printf("\tPCM_CAP_REALTIME (High precision latency control)\n");

	printf("open_mode=%#04x\n", d->open_mode);
	if (d->open_mode & AUDIO_REC)
		printf("\tAUDIO_REC (Recording)\n");
	if (d->open_mode & AUDIO_PLAY)
		printf("\tAUDIO_PLAY (Playback)\n");
	if (d->open_mode & AUDIO_EXCL)
		printf("\tAUDIO_EXCL (Exclusive access)\n");
	if (d->open_mode & AUDIO_NBIO)
		printf("\tAUDIO_NBIO (Non-blocking IO)\n");
	if (d->open_mode & AUDIO_MMAP)
		printf("\tAUDIO_MMAP (Memory mapped IO)\n");

	if (d->chan_rec) {
		c = d->chan_rec;
		printf("chan_rec=%s\n", c->name);
		printf("\tunit=%d\n", c->unit);
		printf("\trate=%d\n", c->rate);
		printf("\tformat=%#08x\n", c->format);
		printf("\tmin_rate=%d\n", c->min_rate);
		printf("\tmax_rate=%d\n", c->max_rate);
		printf("\tcaps=%#08x\n", c->caps);
		printf("\tbufsz=%ld\n", c->bufsz);
		printf("\tsample_size=%ld\n", c->sample_size);
		printf("\tframe_size=%ld\n", c->frame_size);
		printf("\tframe_total=%d\n", c->frame_total);
	}
	if (d->chan_play) {
		c = d->chan_play;
		printf("chan_play=%s\n", c->name);
		printf("\tunit=%d\n", c->unit);
		printf("\trate=%d\n", c->rate);
		printf("\tformat=%#08x\n", c->format);
		printf("\tmin_rate=%d\n", c->min_rate);
		printf("\tmax_rate=%d\n", c->max_rate);
		printf("\tcaps=%#08x\n", c->caps);
		printf("\tbufsz=%ld\n", c->bufsz);
		printf("\tsample_size=%ld\n", c->sample_size);
		printf("\tframe_size=%ld\n", c->frame_size);
		printf("\tframe_total=%d\n", c->frame_total);
	}
}

int
main(int argc, char *argv[])
{
	struct audio_device *d;

	d = audio_open(argv[1], AUDIO_REC | AUDIO_PLAY | AUDIO_MMAP, AFMT_S32_NE, 2, 48000);
	if (d == NULL)
		err(1, "audio_open");

	print_audio_info(d);

	for (;;) {
		char buf[d->chan_play->bufsz];
		ssize_t n;

		n = read(STDIN_FILENO, buf, sizeof(buf));
		if (n < 0)
			err(1, "read");
		n = audio_write(d, buf, sizeof(buf));
	}

	audio_close(d);

	return (0);
}