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authormarkster <markster@f38db490-d61c-443f-a65b-d21fe96a405b>2002-05-30 17:38:34 +0000
committermarkster <markster@f38db490-d61c-443f-a65b-d21fe96a405b>2002-05-30 17:38:34 +0000
commita1900b506edd9b07beb14c19102517844c08f93d (patch)
tree851e471d2264f1c5067ecc11574b9e1f145da417 /apps/app_milliwatt.c
parent1894676b424803dd8dee2df9c0b76beeeb695fac (diff)
Version 0.1.12 from FTP
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@455 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'apps/app_milliwatt.c')
-rwxr-xr-xapps/app_milliwatt.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/apps/app_milliwatt.c b/apps/app_milliwatt.c
new file mode 100755
index 000000000..2f162f242
--- /dev/null
+++ b/apps/app_milliwatt.c
@@ -0,0 +1,148 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Digital Milliwatt Test
+ *
+ * Copyright (C) 2002, Mark Spencer
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+#include <asterisk/lock.h>
+#include <asterisk/file.h>
+#include <asterisk/logger.h>
+#include <asterisk/channel.h>
+#include <asterisk/pbx.h>
+#include <asterisk/module.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <pthread.h>
+
+static char *tdesc = "Digital Milliwatt (mu-law) Test Application";
+
+static char *app = "Milliwatt";
+
+static char *synopsis = "Generate a Constant 1000Hz tone at 0dbm (mu-law)";
+
+static char *descrip =
+"Milliwatt(): Generate a Constant 1000Hz tone at 0dbm (mu-law)\n";
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+static char digital_milliwatt[] = {0x1e,0x0b,0x0b,0x1e,0x9e,0x8b,0x8b,0x9e} ;
+
+static void *milliwatt_alloc(struct ast_channel *chan, void *params)
+{
+int *indexp;
+ indexp = malloc(sizeof(int));
+ if (indexp == NULL) return(NULL);
+ *indexp = 0;
+ return(indexp);
+}
+
+static void milliwatt_release(struct ast_channel *chan, void *data)
+{
+ free(data);
+ return;
+}
+
+static int milliwatt_generate(struct ast_channel *chan, void *data, int len)
+{
+ struct ast_frame wf;
+ unsigned char waste[AST_FRIENDLY_OFFSET];
+ unsigned char buf[640];
+ int i,*indexp = (int *) data;
+
+ if (len > sizeof(buf))
+ {
+ ast_log(LOG_WARNING,"Only doing %d bytes (%d bytes requested)\n",sizeof(buf),len);
+ len = sizeof(buf);
+ }
+ waste[0] = 0; /* make compiler happy */
+ wf.frametype = AST_FRAME_VOICE;
+ wf.subclass = AST_FORMAT_ULAW;
+ wf.offset = AST_FRIENDLY_OFFSET;
+ wf.mallocd = 0;
+ wf.data = buf;
+ wf.datalen = len;
+ wf.timelen = wf.datalen / 8;
+ wf.src = "app_milliwatt";
+ /* create a buffer containing the digital milliwatt pattern */
+ for(i = 0; i < len; i++)
+ {
+ buf[i] = digital_milliwatt[(*indexp)++];
+ *indexp &= 7;
+ }
+ if (ast_write(chan,&wf) < 0)
+ {
+ ast_log(LOG_WARNING,"Failed to write frame to '%s': %s\n",chan->name,strerror(errno));
+ return -1;
+ }
+ return 0;
+}
+
+static struct ast_generator milliwattgen =
+{
+ alloc: milliwatt_alloc,
+ release: milliwatt_release,
+ generate: milliwatt_generate,
+} ;
+
+static int milliwatt_exec(struct ast_channel *chan, void *data)
+{
+
+ struct localuser *u;
+ struct ast_frame *f;
+ LOCAL_USER_ADD(u);
+ ast_set_write_format(chan, AST_FORMAT_ULAW);
+ ast_set_read_format(chan, AST_FORMAT_ULAW);
+ if (chan->state != AST_STATE_UP)
+ {
+ ast_answer(chan);
+ }
+ if (ast_activate_generator(chan,&milliwattgen,"milliwatt") < 0)
+ {
+ ast_log(LOG_WARNING,"Failed to activate generator on '%s'\n",chan->name);
+ return -1;
+ }
+ while(!ast_safe_sleep(chan, 10000));
+ ast_deactivate_generator(chan);
+ LOCAL_USER_REMOVE(u);
+ return -1;
+}
+
+int unload_module(void)
+{
+ STANDARD_HANGUP_LOCALUSERS;
+ return ast_unregister_application(app);
+}
+
+int load_module(void)
+{
+ return ast_register_application(app, milliwatt_exec, synopsis, descrip);
+}
+
+char *description(void)
+{
+ return tdesc;
+}
+
+int usecount(void)
+{
+ int res;
+ STANDARD_USECOUNT(res);
+ return res;
+}
+
+char *key()
+{
+ return ASTERISK_GPL_KEY;
+}