dtmf.c

来自「蓝牙HANDFREE软件源代码」· C语言 代码 · 共 29 行

#include "handsfree_private.h"
#include "handsfree.h"

#include <ctype.h>
#include <message.h>
#include <string.h>


/*
	sendDtmfReqAction

	Send one of the allowed ASCII characters (0-9, #, *, A-D) for DTMF tone generation.
*/
void sendDtmfReqAction(char dtmf)
{
	if (isdigit(dtmf) || dtmf=='#' || dtmf=='*' || dtmf=='A' || dtmf=='B' || dtmf=='C' || dtmf=='D')
	{
		/* Send the code if it is within the allowed range */
		MAKE_MSG(HANDSFREE_SEND_DTMF_CODE_REQ);
		msg->dtmf_code = dtmf;
		putMsg(msg);
	}
	else
	{
		/* Send an error to the interface */
		handleErrorInd(HfErrorInvalidDtmfCode);
	}
}