From 73b8a3e23ea9b9760ecf1dd29170558122d1a17b Mon Sep 17 00:00:00 2001
From: hackbard <hackbard@hackdaworld.org>
Date: Sun, 27 Mar 2011 14:17:15 +0200
Subject: [PATCH] started code to set ir ...

---
 jtag.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/jtag.c b/jtag.c
index ca2e683..2e8298c 100644
--- a/jtag.c
+++ b/jtag.c
@@ -175,6 +175,22 @@ int jtag_read_data(u8 *p,int bitlen) {
 
 }
 
+int jtag_write_data(u8 *p,int bitlen) {
+
+	int count;
+
+	count=0;
+
+	while(bitlen) {
+		jtag_clock(0,p[count/8]&(1<<count)?1:0);
+		bitlen-=1;
+		count+=1;
+	}
+
+	return 0;
+
+}
+
 int jtag_chain_init(t_jtag *jtag) {
 
 	int i;
@@ -212,6 +228,33 @@ int jtag_chain_init(t_jtag *jtag) {
 
 }
 
+int jtag_set_ir(char *s,int bitlen) {
+
+	u8 ir[MAXDEV*MAX_IR_LEN/8];
+	int count;
+
+	if(biten>=MAXDEV*MAX_IR_LEN) {
+		printf("instruction register too big!\n");
+		return -1;
+	}
+
+	memset(ir,0,MAXDEV*MAX_IR_LEN/8*sizeof(u8));
+
+	while(bitlen) {
+		ir[count/8]|=p[count] ... HIER WEITER ..;
+		count+=1;
+		bitlen-=1;
+	}
+
+	jtag_enter_shift_ir();
+
+	while(len--)
+
+	jtag_leave_shift_ir();
+	return 0;
+
+}
+
 int main(int argc,char **argv) {
 
 	t_jtag jtag;
-- 
2.39.2