X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=ao-tools%2Flib%2Fcc-usb.c;h=a3a19d5cda58c875fce4c0dc90d54d15013fa3a2;hp=485583f98b3897c1816547ffc4b7ae95ee32a6b1;hb=ca4b20f9781b1dc6974d26952973dfe0d607478c;hpb=0b6128d634c49e1790675ae8111e970b1af1f141

diff --git a/ao-tools/lib/cc-usb.c b/ao-tools/lib/cc-usb.c
index 485583f9..a3a19d5c 100644
--- a/ao-tools/lib/cc-usb.c
+++ b/ao-tools/lib/cc-usb.c
@@ -123,9 +123,10 @@ cc_handle_hex_read(struct cc_usb *cc)
 static void
 cc_usb_dbg(int indent, uint8_t *bytes, int len)
 {
-	int	eol = 1;
+	static int	eol = 1;
 	int	i;
 	uint8_t	c;
+	ccdbg_debug(CC_DEBUG_BITBANG, "<<<%d bytes>>>", len);
 	while (len--) {
 		c = *bytes++;
 		if (eol) {
@@ -135,10 +136,12 @@ cc_usb_dbg(int indent, uint8_t *bytes, int len)
 		}
 		switch (c) {
 		case '\r':
-			ccdbg_debug(CC_DEBUG_BITBANG, "^M");
+			ccdbg_debug(CC_DEBUG_BITBANG, "\\r");
 			break;
 		case '\n':
 			eol = 1;
+			ccdbg_debug(CC_DEBUG_BITBANG, "\\n\n");
+			break;
 		default:
 			if (c < ' ' || c > '~')
 				ccdbg_debug(CC_DEBUG_BITBANG, "\\%02x", c);
@@ -193,7 +196,6 @@ _cc_usb_sync(struct cc_usb *cc, int wait_for_input)
 			ret = read(cc->fd, cc->in_buf + cc->in_count,
 				   CC_IN_BUF - cc->in_count);
 			if (ret > 0) {
-				int i;
 				cc_usb_dbg(24, cc->in_buf + cc->in_count, ret);
 				cc->in_count += ret;
 				if (cc->hex_count)
@@ -410,19 +412,35 @@ cc_usb_close_remote(struct cc_usb *cc)
 
 static struct termios	save_termios;
 
+#include <errno.h>
+
 struct cc_usb *
 cc_usb_open(char *tty)
 {
 	struct cc_usb	*cc;
 	struct termios	termios;
+	int		i;
 
 	if (!tty)
 		tty = DEFAULT_TTY;
 	cc = calloc (sizeof (struct cc_usb), 1);
 	if (!cc)
 		return NULL;
-	cc->fd = open(tty, O_RDWR | O_NONBLOCK);
-	if (cc->fd < 0) {
+	i = 0;
+	for (;;) {
+		cc->fd = open(tty, O_RDWR | O_NONBLOCK);
+		if (cc->fd >= 0)
+			break;
+		i++;
+		if (errno == EBUSY || errno == EPERM || errno == EACCES) {
+			fprintf(stderr, "open failed, pausing");
+			perror(tty);
+			if (i < 20) {
+				sleep(3);
+				continue;
+			}
+		}
+
 		perror(tty);
 		free (cc);
 		return NULL;