From 8f36d8fbd053b9133352edf9666d6d6c3a77a8dd Mon Sep 17 00:00:00 2001
From: Stan Seibert <volsung@xiph.org>
Date: Wed, 8 Jan 2003 03:48:54 +0000
Subject: [PATCH] Patch from Stefan Tibus <sjti@gmx.net> to add support for the
AIX audio devices. The conditional compilation is a little messy, but I
still need to decide a good way to do that in general.
git-svn-id: http://svn.xiph.org/trunk/ao@4214 0101bb08-14d6-0310-b084-bc0e0c8e3800
---
configure.in | 4 +
include/ao/ao.h | 3 +-
src/Makefile.am | 2 +-
src/ao_aixs.c | 219 ++++++++++++++++++++++++++++++++++++++++++++++++
src/audio_out.c | 6 ++
5 files changed, 232 insertions(+), 2 deletions(-)
create mode 100644 src/ao_aixs.c
diff --git a/configure.in b/configure.in
index 97855e9..6cb00e3 100644
--- a/configure.in
+++ b/configure.in
@@ -221,6 +221,10 @@ dnl Check for Sun audio
AC_CHECK_HEADERS(sys/audioio.h)
AM_CONDITIONAL(HAVE_SUN_AUDIO,test "${ac_cv_header_sys_audioio_h}" = yes)
+dnl Check for AIX audio
+
+AC_CHECK_HEADERS(sys/audio.h)
+AM_CONDITIONAL(HAVE_AIX_AUDIO,test "${ac_cv_header_sys_audio_h}" = yes)
dnl Check for aRts
diff --git a/include/ao/ao.h b/include/ao/ao.h
index a25ad52..112e155 100644
--- a/include/ao/ao.h
+++ b/include/ao/ao.h
@@ -31,7 +31,8 @@
extern "C"
{
#endif /* __cplusplus */
-
+
+#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include "os_types.h"
diff --git a/src/Makefile.am b/src/Makefile.am
index bff0839..3e6f3a9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -7,7 +7,7 @@ INCLUDES = -I$(top_builddir)/include/ao -I$(top_srcdir)/include -DAO_PLUGIN_PATH
lib_LTLIBRARIES = libao.la
-libao_la_SOURCES = audio_out.c config.c ao_null.c ao_wav.c ao_au.c ao_raw.c ao_private.h
+libao_la_SOURCES = audio_out.c config.c ao_null.c ao_wav.c ao_au.c ao_raw.c ao_aixs.c ao_private.h
libao_la_LDFLAGS = -version-info @LIB_CURRENT@:@LIB_REVISION@:@LIB_AGE@ -ldl
diff --git a/src/ao_aixs.c b/src/ao_aixs.c
new file mode 100644
index 0000000..7533be7
--- /dev/null
+++ b/src/ao_aixs.c
@@ -0,0 +1,219 @@
+/*
+ *
+ * ao_aixs.c AIX (5.1)
+ *
+ * Original Copyright (C) Stefan Tibus - August 2002
+ *
+ * libao is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * libao is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifdef HAVE_SYS_AUDIO_H
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/audio.h>
+
+#include <ao/ao.h>
+#include <ao/plugin.h>
+
+
+/*
+ * default audio device to be used,
+ * possible options:
+ * /dev/paud0/1 on PCI machines with the Crystal chipset
+ * /dev/baud0/1 on MCA machines with the Crystal chipset
+ * /dev/acpa0/1 on MCA machines with the ACPA
+ */
+#ifndef AO_AIX_DEFAULT_DEV
+#define AO_AIX_DEFAULT_DEV "/dev/baud0/1"
+#endif
+
+
+static char *ao_aixs_options[] = {"dev"};
+ao_info ao_aixs_info = {
+ AO_TYPE_LIVE,
+ "AIX audio driver output",
+ "aixs",
+ "Stefan Tibus <sjti@gmx.net>",
+ "Outputs to the AIX audio system.",
+ AO_FMT_NATIVE,
+ 20,
+ ao_aixs_options,
+ 1
+};
+
+
+typedef struct ao_aixs_internal {
+ char *dev;
+ int fd;
+} ao_aixs_internal;
+
+
+int ao_aixs_test()
+{
+ int fd;
+
+ if ( (fd = open(AO_AIX_DEFAULT_DEV, O_WRONLY)) < 0 )
+ return 0; /* Cannot use this plugin with default parameters */
+ else {
+ close(fd);
+ return 1; /* This plugin works in default mode */
+ }
+}
+
+
+ao_info *ao_aixs_driver_info(void)
+{
+ return &ao_aixs_info;
+}
+
+
+int ao_aixs_device_init(ao_device *device)
+{
+ ao_aixs_internal *internal;
+
+ internal = (ao_aixs_internal *) malloc(sizeof(ao_aixs_internal));
+
+ if (internal == NULL)
+ return 0; /* Could not initialize device memory */
+
+ internal->dev = strdup(AO_AIX_DEFAULT_DEV);
+
+ if (internal->dev == NULL) {
+ free(internal);
+ return 0;
+ }
+
+ device->internal = internal;
+
+ return 1; /* Memory alloc successful */
+}
+
+int ao_aixs_set_option(ao_device *device, const char *key, const char *value)
+{
+ ao_aixs_internal *internal = (ao_aixs_internal *) device->internal;
+
+
+ if (!strcmp(key, "dev")) {
+ /* Free old string in case "dsp" set twice in options */
+ free(internal->dev);
+ internal->dev = strdup(value);
+ }
+
+ return 1;
+}
+
+
+int ao_aixs_open(ao_device *device, ao_sample_format *format)
+{
+ ao_aixs_internal *internal = (ao_aixs_internal *) device->internal;
+
+ audio_init init;
+ audio_control control;
+ audio_change change;
+
+ if ( (internal->fd = open(internal->dev, O_WRONLY)) < 0 )
+ return 0;
+
+ init.srate = format->rate;
+ init.bits_per_sample = format->bits;
+ init.channels = format->channels;
+ init.mode = AUDIO_PCM;
+ init.flags = AUDIO_BIG_ENDIAN | AUDIO_TWOS_COMPLEMENT;
+ init.operation = AUDIO_PLAY;
+
+ if (ioctl(internal->fd, AUDIO_INIT, &init) < 0) {
+ close(internal->fd);
+ return 0; /* Unsupported audio format */
+ }
+
+ change.balance = 0x3fff0000;
+ change.volume = 0x3fff0000;
+ change.monitor = AUDIO_IGNORE;
+ change.input = AUDIO_IGNORE;
+ change.output = AUDIO_OUTPUT_1;
+
+ control.ioctl_request = AUDIO_CHANGE;
+ control.position = 0;
+ control.request_info = &change;
+
+ if (ioctl(internal->fd, AUDIO_CONTROL, &control) < 0) {
+ close(internal->fd);
+ return 0;
+ }
+
+ control.ioctl_request = AUDIO_START;
+ control.request_info = NULL;
+
+ if (ioctl(internal->fd, AUDIO_CONTROL, &control) < 0) {
+ close(internal->fd);
+ return 0;
+ }
+
+ device->driver_byte_format = AO_FMT_NATIVE;
+
+ return 1;
+}
+
+
+int ao_aixs_play(ao_device *device, const char *output_samples,
+ uint_32 num_bytes)
+{
+ ao_aixs_internal *internal = (ao_aixs_internal *) device->internal;
+
+ if (write(internal->fd, output_samples, num_bytes) < 0)
+ return 0;
+ else
+ return 1;
+}
+
+
+int ao_aixs_close(ao_device *device)
+{
+ ao_aixs_internal *internal = (ao_aixs_internal *) device->internal;
+
+ close(internal->fd);
+
+ return 1;
+}
+
+
+void ao_aixs_device_clear(ao_device *device)
+{
+ ao_aixs_internal *internal = (ao_aixs_internal *) device->internal;
+
+ free(internal->dev);
+ free(internal);
+}
+
+ao_functions ao_aixs = {
+ ao_aixs_test,
+ ao_aixs_driver_info,
+ ao_aixs_device_init,
+ ao_aixs_set_option,
+ ao_aixs_open,
+ ao_aixs_play,
+ ao_aixs_close,
+ ao_aixs_device_clear
+};
+
+#endif
diff --git a/src/audio_out.c b/src/audio_out.c
index 9594bb1..ff9cac0 100644
--- a/src/audio_out.c
+++ b/src/audio_out.c
@@ -62,12 +62,18 @@ extern ao_functions ao_null;
extern ao_functions ao_wav;
extern ao_functions ao_raw;
extern ao_functions ao_au;
+#ifdef HAVE_SYS_AUDIO_H
+extern ao_functions ao_aixs;
+#endif
static ao_functions *static_drivers[] = {
&ao_null, /* Must have at least one static driver! */
&ao_wav,
&ao_raw,
&ao_au,
+#ifdef HAVE_SYS_AUDIO_H
+ &ao_aixs,
+#endif
NULL /* End of list */
};
--
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