add channel-driver callbacks for variable length DTMF

teach ast_write() to call those new callbacks

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@8851 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channel.c b/channel.c
index 3db38b6..c961f57 100644 (file)
--- a/channel.c
+++ b/channel.c
@@ -2295,9 +2295,16 @@ int ast_write(struct ast_channel *chan, struct ast_frame *fr)
                ast_log(LOG_WARNING, "Don't know how to handle control frames yet\n");
                break;
        case AST_FRAME_DTMF_BEGIN:
+               if (chan->tech->send_digit_begin)
+                       res = chan->tech->send_digit_begin(chan, fr->subclass);
+               else
+                       res = 0;
+               break;
        case AST_FRAME_DTMF_END:
-               /* nothing to do with these yet */
-               res = 0;
+               if (chan->tech->send_digit_end)
+                       res = chan->tech->send_digit_end(chan);
+               else
+                       res = 0;
                break;
        case AST_FRAME_DTMF:
                ast_clear_flag(chan, AST_FLAG_BLOCKING);

diff --git a/include/asterisk/channel.h b/include/asterisk/channel.h
index 59fbee5..4b120d8 100644 (file)
--- a/include/asterisk/channel.h
+++ b/include/asterisk/channel.h
@@ -189,6 +189,12 @@ struct ast_channel_tech {
        /*! Send a literal DTMF digit */
        int (* const send_digit)(struct ast_channel *chan, char digit);
 
+       /*! Start sending a literal DTMF digit */
+       int (* const send_digit_begin)(struct ast_channel *chan, char digit);
+
+       /*! Stop sending the last literal DTMF digit */
+       int (* const send_digit_end)(struct ast_channel *chan);
+
        /*! Call a given phone number (address, etc), but don't
           take longer than timeout seconds to do so.  */
        int (* const call)(struct ast_channel *chan, char *addr, int timeout);