mdebug

commit ed5e5852ba600ac752382852716ce5599dd6d79b
parent ff46e3d61e09c2e5f8363b7e9a32263f66d5d335
Author: Brian Swetland <swetland@frotz.net>
Date:   Wed,  5 Aug 2015 14:48:23 -0700

debugger: clean up wconsole a bit

Diffstat:
M
tools/debugger-commands.c
 | 
19
++++++++++---------

1 file changed, 10 insertions(+), 9 deletions(-)
diff --git a/tools/debugger-commands.c b/tools/debugger-commands.c
@@ -818,14 +818,18 @@ int do_threads(int argc, param *argv) {
 int remote_msg(u32 cmd) {
 	unsigned timeout = 250;
 	u32 n = 0;
-	if (swdp_ahb_write(DCRDR, cmd)) return -1;
-	if (swdp_ahb_read(DEMCR, &n)) return -1;
-	if (swdp_ahb_write(DEMCR, n | DEMCR_MON_PEND)) return -1;
+	if (swdp_ahb_write(DCRDR, cmd)) goto fail;
+	if (swdp_ahb_read(DEMCR, &n)) goto fail;
+	if (swdp_ahb_write(DEMCR, n | DEMCR_MON_PEND)) goto fail;
 	while (timeout > 0) {
-		if (swdp_ahb_read(DCRDR, &n)) return -1;
+		if (swdp_ahb_read(DCRDR, &n)) goto fail;
 		if (!(n & 0x80000000)) return 0;
 		timeout--;
 	}
+	xprintf(XCORE, "console write timeout\n");
+	return -1;
+fail:
+	xprintf(XCORE, "console write io error\n");
 	return -1;
 }
 
@@ -833,14 +837,11 @@ int do_wconsole(int argc, param *argv) {
 	if (argc != 1) return -1;
 	const char *line = argv[0].s;
 	while (*line) {
-		if (remote_msg(0x80000000 | *line)) goto oops;
+		if (remote_msg(0x80000000 | *line)) return -1;
 		line++;
 	}
-	if (remote_msg(0x80000000 | '\n')) goto oops;
+	if (remote_msg(0x80000000 | '\r')) return -1;
 	return 0;
-oops:
-	xprintf(XCORE, "console write failed\n");
-	return -1;
 }