SecBSD's official ports repository

audio/cmu-sphinxbase/files/ad_sndio.c

@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2010	Eric Faurot	<eric@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sndio.h>
+#include <stdio.h>
+#include <config.h>
+
+#include "prim_type.h"
+#include "ad.h"
+
+#define bPS	16
+#define BPS	2
+
+ad_rec_t *
+ad_open_dev(const char *dev, int32 rate)
+{
+	struct sio_hdl	*hdl;
+	struct sio_par	 param;
+
+	hdl = sio_open(dev, SIO_REC, 1);
+	if (hdl == NULL) {
+		fprintf(stderr, "ad_open_dev: sio_open(%s) failed\n", dev);
+		return NULL;
+	}
+
+	sio_initpar(&param);
+	param.bits = bPS;
+	param.bps = BPS;
+	param.sig = 1;
+	param.le = 1;
+	param.rchan = 1;
+	param.rate = rate;
+	if (!sio_setpar(hdl, &param)) {
+		fprintf(stderr, "ad_open_dev: sio_setpar() failed\n");
+		sio_close(hdl);
+		return NULL;
+	}
+	if (!sio_getpar(hdl, &param)) {
+		fprintf(stderr, "ad_open_dev: sio_getpar() failed\n");
+		sio_close(hdl);
+		return NULL;
+	}
+	if (param.bits != bPS ||
+	    param.bps != BPS ||
+	    param.sig != 1 ||
+	    param.le != 1 ||
+	    param.rchan != 1 ||
+	    param.rate != rate) {
+		fprintf(stderr, "ad_open_dev: can't set specified params\n");
+		sio_close(hdl);
+		return NULL;
+	}
+
+	return (ad_rec_t*)hdl;
+}
+
+ad_rec_t *
+ad_open_sps(int32 rate)
+{
+	return ad_open_dev(NULL, rate);
+}
+
+ad_rec_t *
+ad_open(void)
+{
+	return ad_open_sps(DEFAULT_SAMPLES_PER_SEC);
+}
+
+int32
+ad_start_rec(ad_rec_t *r)
+{
+	struct sio_hdl	*hdl = (struct sio_hdl*)r;
+
+	if (!sio_start(hdl))
+		return AD_ERR_GEN;
+
+	return (0);
+}
+
+int32
+ad_stop_rec(ad_rec_t *r)
+{
+	struct sio_hdl	*hdl = (struct sio_hdl*)r;
+
+	if (!sio_stop(hdl))
+		return AD_ERR_GEN;
+
+	return (0);
+}
+
+
+int32
+ad_read(ad_rec_t *r, int16 *buf, int32 max)
+{
+	size_t		 n, t;
+	char*		 b = (char *)buf;
+	struct sio_hdl	*hdl = (struct sio_hdl*)r;
+
+	n = sio_read(hdl, b, max * BPS);
+	while (n % BPS) {
+		t = sio_read(hdl, b + n, BPS - (n % BPS));
+		if (t == 0)
+			return AD_ERR_GEN;
+		n += t;
+	}
+	return (n / BPS);
+}
+
+int32
+ad_close(ad_rec_t *r)
+{
+	struct sio_hdl  *hdl = (struct sio_hdl*)r;
+
+	sio_close(hdl);
+	return (0);
+}