/* $NetBSD: h_pad.c,v 1.3 2019/06/20 12:14:46 isaki Exp $ */ /* * Copyright (c) 2010 Antti Kantee. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include "h_pad_musa.c" /* * Stuff some audio into /dev/audio, read it from /dev/pad. */ #define BUFSIZE 1024 static const int16_t mulaw_to_slinear16[256] = { 0x8284, 0x8684, 0x8a84, 0x8e84, 0x9284, 0x9684, 0x9a84, 0x9e84, 0xa284, 0xa684, 0xaa84, 0xae84, 0xb284, 0xb684, 0xba84, 0xbe84, 0xc184, 0xc384, 0xc584, 0xc784, 0xc984, 0xcb84, 0xcd84, 0xcf84, 0xd184, 0xd384, 0xd584, 0xd784, 0xd984, 0xdb84, 0xdd84, 0xdf84, 0xe104, 0xe204, 0xe304, 0xe404, 0xe504, 0xe604, 0xe704, 0xe804, 0xe904, 0xea04, 0xeb04, 0xec04, 0xed04, 0xee04, 0xef04, 0xf004, 0xf0c4, 0xf144, 0xf1c4, 0xf244, 0xf2c4, 0xf344, 0xf3c4, 0xf444, 0xf4c4, 0xf544, 0xf5c4, 0xf644, 0xf6c4, 0xf744, 0xf7c4, 0xf844, 0xf8a4, 0xf8e4, 0xf924, 0xf964, 0xf9a4, 0xf9e4, 0xfa24, 0xfa64, 0xfaa4, 0xfae4, 0xfb24, 0xfb64, 0xfba4, 0xfbe4, 0xfc24, 0xfc64, 0xfc94, 0xfcb4, 0xfcd4, 0xfcf4, 0xfd14, 0xfd34, 0xfd54, 0xfd74, 0xfd94, 0xfdb4, 0xfdd4, 0xfdf4, 0xfe14, 0xfe34, 0xfe54, 0xfe74, 0xfe8c, 0xfe9c, 0xfeac, 0xfebc, 0xfecc, 0xfedc, 0xfeec, 0xfefc, 0xff0c, 0xff1c, 0xff2c, 0xff3c, 0xff4c, 0xff5c, 0xff6c, 0xff7c, 0xff88, 0xff90, 0xff98, 0xffa0, 0xffa8, 0xffb0, 0xffb8, 0xffc0, 0xffc8, 0xffd0, 0xffd8, 0xffe0, 0xffe8, 0xfff0, 0xfff8, 0xfffc, 0x7d7c, 0x797c, 0x757c, 0x717c, 0x6d7c, 0x697c, 0x657c, 0x617c, 0x5d7c, 0x597c, 0x557c, 0x517c, 0x4d7c, 0x497c, 0x457c, 0x417c, 0x3e7c, 0x3c7c, 0x3a7c, 0x387c, 0x367c, 0x347c, 0x327c, 0x307c, 0x2e7c, 0x2c7c, 0x2a7c, 0x287c, 0x267c, 0x247c, 0x227c, 0x207c, 0x1efc, 0x1dfc, 0x1cfc, 0x1bfc, 0x1afc, 0x19fc, 0x18fc, 0x17fc, 0x16fc, 0x15fc, 0x14fc, 0x13fc, 0x12fc, 0x11fc, 0x10fc, 0x0ffc, 0x0f3c, 0x0ebc, 0x0e3c, 0x0dbc, 0x0d3c, 0x0cbc, 0x0c3c, 0x0bbc, 0x0b3c, 0x0abc, 0x0a3c, 0x09bc, 0x093c, 0x08bc, 0x083c, 0x07bc, 0x075c, 0x071c, 0x06dc, 0x069c, 0x065c, 0x061c, 0x05dc, 0x059c, 0x055c, 0x051c, 0x04dc, 0x049c, 0x045c, 0x041c, 0x03dc, 0x039c, 0x036c, 0x034c, 0x032c, 0x030c, 0x02ec, 0x02cc, 0x02ac, 0x028c, 0x026c, 0x024c, 0x022c, 0x020c, 0x01ec, 0x01cc, 0x01ac, 0x018c, 0x0174, 0x0164, 0x0154, 0x0144, 0x0134, 0x0124, 0x0114, 0x0104, 0x00f4, 0x00e4, 0x00d4, 0x00c4, 0x00b4, 0x00a4, 0x0094, 0x0084, 0x0078, 0x0070, 0x0068, 0x0060, 0x0058, 0x0050, 0x0048, 0x0040, 0x0038, 0x0030, 0x0028, 0x0020, 0x0018, 0x0010, 0x0008, 0x0000, }; #define DPRINTF(n, fmt...) do { \ if (debug >= (n)) \ printf(fmt); \ } while (0) int debug; int main(int argc, char *argv[]) { struct audio_info ai; int padfd, audiofd; ssize_t n; int i; int nframe; int outlen; uint32_t *outbuf; uint32_t *outp; int inplen; uint32_t *inpbuf; uint32_t actual; uint32_t expected; int c; enum { PRE, BODY, POST, } phase; while ((c = getopt(argc, argv, "d")) != -1) { switch (c) { case 'd': debug++; break; default: errx(1, "unknown option"); } } /* Make input buffer (and it is also expected data). */ inplen = sizeof(musa) * 4; inpbuf = (uint32_t *)malloc(inplen); if (inpbuf == NULL) err(1, "malloc: inpbuf"); /* mulaw:mono to slinear_le16:stereo */ for (i = 0; i < (int)sizeof(musa); i++) { int16_t s = mulaw_to_slinear16[musa[i]]; uint32_t v = htole16((uint16_t)s); inpbuf[i] = (v << 16) | v; } outlen = BUFSIZE; outbuf = (uint32_t *)malloc(outlen); if (outbuf == NULL) err(1, "malloc: outbuf"); DPRINTF(1, "init\n"); rump_init(); padfd = rump_sys_open("/dev/pad0", O_RDONLY); if (padfd == -1) err(1, "open pad"); audiofd = rump_sys_open("/dev/audio0", O_RDWR); if (audiofd == -1) err(1, "open audio"); DPRINTF(1, "ioctl\n"); /* pad is SLINEAR_LE, 16bit, 2ch, 44100Hz. */ AUDIO_INITINFO(&ai); ai.play.encoding = AUDIO_ENCODING_SLINEAR_LE; ai.play.precision = 16; ai.play.channels = 2; ai.play.sample_rate = 44100; n = rump_sys_ioctl(audiofd, AUDIO_SETINFO, &ai); if (n == -1) err(1, "ioctl"); DPRINTF(1, "write %d\n", inplen); n = rump_sys_write(audiofd, inpbuf, inplen); if (n == -1) err(1, "write"); if (n != inplen) errx(1, "write: n=%zd < %d", n, inplen); phase = PRE; i = 0; nframe = 0; outp = NULL; for (;;) { /* Read to outbuf when it is empty. */ if (nframe == 0) { n = rump_sys_read(padfd, outbuf, outlen); if (n == -1) err(1, "read"); if (n == 0) errx(1, "read: EOF"); /* XXX Should I recover from this? */ if (n % 4 != 0) errx(1, "read: n=%zd", n); nframe = n / 4; outp = outbuf; } if (phase == PRE) { /* Skip preceding silence part. */ if (*outp == 0) { outp++; nframe--; } else { /* This is the first frame. */ phase = BODY; } } else if (phase == BODY) { /* Compare wavedata. */ expected = le32dec(outp); actual = le32dec(inpbuf + i); DPRINTF(2, "[%d] %08x %08x\n", i, actual, expected); if (actual != expected) { errx(1, "bad output [%d] %08x %08x", i, actual, expected); } outp++; nframe--; i++; if (i >= (int)sizeof(musa)) { phase = POST; i = 0; } } else if (phase == POST) { /* * There is no way to determine the end of playback. * Therefore it detects and terminates with some * continuous silence. */ actual = le32dec(outp); if (actual != 0) errx(1, "bad post output: %08x", actual); outp++; nframe--; i++; if (i >= (int)ai.play.sample_rate / 100) break; } } DPRINTF(1, "success\n"); return 0; }