Use --tty/-T on command line to specify target device

Also, use the ALTOS_TTY environment variable in all tools. Note that
the magic value of "BITBANG" switches the library to connecting
through a CP2103 instead.

Signed-off-by: Keith Packard <keithp@keithp.com>

11 files changed, 130 insertions, 37 deletions

diff --git a/ao-tools/ao-bitbang/ao-bitbang.c b/ao-tools/ao-bitbang/ao-bitbang.c
index 7090c9a3..e8dff6bf 100644
--- a/ao-tools/ao-bitbang/ao-bitbang.c
+++ b/ao-tools/ao-bitbang/ao-bitbang.c
@@ -23,7 +23,7 @@ main (int argc, char **argv)
 {
 	struct ccdbg	*dbg;
 
-	dbg = ccdbg_open();
+	dbg = ccdbg_open("BITBANG");
 	if (!dbg)
 		exit (1);
 
diff --git a/ao-tools/ao-dbg/ao-dbg-main.c b/ao-tools/ao-dbg/ao-dbg-main.c
index 72249a6b..f1e2c111 100644
--- a/ao-tools/ao-dbg/ao-dbg-main.c
+++ b/ao-tools/ao-dbg/ao-dbg-main.c
@@ -24,6 +24,7 @@
 #include <signal.h>
 #include <stdarg.h>
 #include <poll.h>
+#include <getopt.h>
 
 static int s51_port = 0;
 static char *cpu = "8051";
@@ -32,6 +33,7 @@ char *s51_prompt = "> ";
 struct ccdbg *s51_dbg;
 int s51_interrupted = 0;
 int s51_monitor = 0;
+char *s51_tty = NULL;
 
 static FILE *s51_input;
 static FILE *s51_output;
@@ -48,6 +50,11 @@ void s51_sigint()
 	s51_interrupted = 1;
 }
 
+static const struct option options[] = {
+	{ .name = "tty", .has_arg = 1, .val = 'T' },
+	{ 0, 0, 0, 0 },
+};
+
 int
 main(int argc, char **argv)
 {
@@ -55,7 +62,7 @@ main(int argc, char **argv)
 	char *endptr;
 	struct sigvec vec, ovec;
 
-	while ((opt = getopt(argc, argv, "PVvHhmt:X:c:r:Z:s:S:p:")) != -1) {
+	while ((opt = getopt_long(argc, argv, "PVvHhmt:X:c:r:Z:s:S:p:T:", options, NULL)) != -1) {
 		switch (opt) {
 		case 't':
 			cpu = optarg;
@@ -104,6 +111,9 @@ main(int argc, char **argv)
 		case 'm':
 			s51_monitor = 1;
 			break;
+		case 'T':
+			s51_tty = optarg;
+			break;
 		}
 	}
 	if (s51_port) {
diff --git a/ao-tools/ao-dbg/ao-dbg-parse.c b/ao-tools/ao-dbg/ao-dbg-parse.c
index 5db6c01c..825d0e9c 100644
--- a/ao-tools/ao-dbg/ao-dbg-parse.c
+++ b/ao-tools/ao-dbg/ao-dbg-parse.c
@@ -195,11 +195,9 @@ command_read (void)
 	enum command_result result;
 	struct command_function *func;
 
-	s51_dbg = ccdbg_open ();
-	if (!s51_dbg) {
-		perror("ccdbg_open");
+	s51_dbg = ccdbg_open (s51_tty);
+	if (!s51_dbg)
 		exit(1);
-	}
 	ccdbg_debug_mode(s51_dbg);
 	ccdbg_halt(s51_dbg);
 	s51_printf("Welcome to the non-simulated processor\n");
diff --git a/ao-tools/ao-dbg/ao-dbg.1 b/ao-tools/ao-dbg/ao-dbg.1
index f2f59a52..1f544e5b 100644
--- a/ao-tools/ao-dbg/ao-dbg.1
+++ b/ao-tools/ao-dbg/ao-dbg.1
@@ -34,6 +34,7 @@ s51 \- hex debugger for cc1111 processors
 [\-H]
 [\-h]
 [\-m]
+[\-T \fItty-device\fP]
 .SH DESCRIPTION
 .I s51
 connects to a cc1111 processor through a cp1203-based USB-to-serial
@@ -78,6 +79,9 @@ This should print a usage message, but does nothing useful currently.
 .IP "\-m"
 This option is not present in the original 8051 emulator, and causes s51 to
 dump all commands and replies that are received from and sent to sdcdb.
+.IP "\-T"
+This selects which tty device the debugger uses to communicate with
+the target device.
 .SH COMMANDS
 Once started, s51 connects to the cc1111 via the CP2103 using libusb2 and
 then reads and executes commands, either from stdin, or the nework
diff --git a/ao-tools/ao-dbg/ao-dbg.h b/ao-tools/ao-dbg/ao-dbg.h
index f4dcce66..c1789d10 100644
--- a/ao-tools/ao-dbg/ao-dbg.h
+++ b/ao-tools/ao-dbg/ao-dbg.h
@@ -22,6 +22,7 @@ extern char *s51_prompt;
 extern struct ccdbg *s51_dbg;
 extern int s51_interrupted;
 extern int s51_monitor;
+extern char *s51_tty;
 
 enum command_result {
 	command_success, command_debug, command_syntax, command_interrupt, command_error,
diff --git a/ao-tools/ao-eeprom/ao-eeprom.c b/ao-tools/ao-eeprom/ao-eeprom.c
index 399732d9..726cc22c 100644
--- a/ao-tools/ao-eeprom/ao-eeprom.c
+++ b/ao-tools/ao-eeprom/ao-eeprom.c
@@ -18,10 +18,23 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
 #include "cc-usb.h"
 
 #define NUM_BLOCK	512
 
+static const struct option options[] = {
+	{ .name = "tty", .has_arg = 1, .val = 'T' },
+	{ 0, 0, 0, 0},
+};
+
+static void usage(char *program)
+{
+	fprintf(stderr, "usage: %s [--tty <tty-name>]\n", program);
+	exit(1);
+}
+
 int
 main (int argc, char **argv)
 {
@@ -31,10 +44,26 @@ main (int argc, char **argv)
 	uint8_t		*b;
 	int		i, j;
 	uint32_t	addr;
-	char		*tty;
+	char		*tty = NULL;
+	int		c;
 
-	tty = getenv("CCDBG_TTY");
+	while ((c = getopt_long(argc, argv, "T:", options, NULL)) != -1) {
+		switch (c) {
+		case 'T':
+			tty = optarg;
+			break;
+		default:
+			usage(argv[0]);
+			break;
+		}
+	}
+	if (!tty)
+		tty = getenv("ALTOS_TTY");
+	if (!tty)
+		tty="/dev/ttyACM0";
 	cc = cc_usb_open(tty);
+	if (!cc)
+		exit(1);
 	for (block = 0; block < NUM_BLOCK; block++) {
 		cc_queue_read(cc, bytes, sizeof (bytes));
 		cc_usb_printf(cc, "e %x\n", block);
diff --git a/ao-tools/ao-load/ao-load.c b/ao-tools/ao-load/ao-load.c
index b84a88a6..c27fcbe9 100644
--- a/ao-tools/ao-load/ao-load.c
+++ b/ao-tools/ao-load/ao-load.c
@@ -19,17 +19,12 @@
 #include <stdlib.h>
 #include <limits.h>
 #include <stdint.h>
+#include <unistd.h>
+#include <getopt.h>
 #include "ccdbg.h"
 
 #define AO_USB_DESC_STRING		3
 
-void
-usage(char *program)
-{
-	fprintf(stderr, "usage: %s <filename.ihx> <serial>\n", program);
-	exit(1);
-}
-
 struct sym {
 	unsigned	addr;
 	char		*name;
@@ -94,6 +89,17 @@ rewrite(struct hex_image *image, unsigned addr, char *data, int len)
 	memcpy(image->data + addr - image->address, data, len);
 }
 
+static const struct option options[] = {
+	{ .name = "tty", .has_arg = 1, .val = 'T' },
+	{ 0, 0, 0, 0},
+};
+
+static void usage(char *program)
+{
+	fprintf(stderr, "usage: %s [--tty <tty-name>] file.ihx serial-number\n", program);
+	exit(1);
+}
+
 int
 main (int argc, char **argv)
 {
@@ -102,12 +108,12 @@ main (int argc, char **argv)
 	uint16_t	pc;
 	struct hex_file	*hex;
 	struct hex_image *image;
-	char *filename;
-	FILE *file;
-	FILE *map;
-	char *serial_string;
-	unsigned int serial;
-	char *mapname, *dot;
+	char		*filename;
+	FILE		*file;
+	FILE		*map;
+	char		*serial_string;
+	unsigned int	serial;
+	char		*mapname, *dot;
 	char		*serial_ucs2;
 	int		serial_ucs2_len;
 	char		serial_int[2];
@@ -115,8 +121,20 @@ main (int argc, char **argv)
 	int		i;
 	unsigned	usb_descriptors;
 	int		string_num;
-
-	filename = argv[1];
+	char		*tty = NULL;
+	int		c;
+
+	while ((c = getopt_long(argc, argv, "T:", options, NULL)) != -1) {
+		switch (c) {
+		case 'T':
+			tty = optarg;
+			break;
+		default:
+			usage(argv[0]);
+			break;
+		}
+	}
+	filename = argv[optind];
 	if (filename == NULL)
 		usage(argv[0]);
 	mapname = strdup(filename);
@@ -125,7 +143,7 @@ main (int argc, char **argv)
 		usage(argv[0]);
 	strcpy(dot, ".map");
 
-	serial_string = argv[2];
+	serial_string = argv[optind + 1];
 	if (serial_string == NULL)
 		usage(argv[0]);
 
@@ -160,7 +178,7 @@ main (int argc, char **argv)
 
 	serial = strtoul(serial_string, NULL, 0);
 	if (!serial)
-		usage(argv[0]);
+(argv[0]);
 
 	serial_int[0] = serial & 0xff;
 	serial_int[1] = (serial >> 8) & 0xff;
@@ -201,7 +219,7 @@ main (int argc, char **argv)
 	if (!rewrite(image, usb_descriptors + 2 + image->address, serial_ucs2, serial_ucs2_len))
 		usage(argv[0]);
 
-	dbg = ccdbg_open();
+	dbg = ccdbg_open(tty);
 	if (!dbg)
 		exit (1);
 
diff --git a/ao-tools/ao-rawload/ao-rawload.c b/ao-tools/ao-rawload/ao-rawload.c
index 5f7708fd..1f1537b9 100644
--- a/ao-tools/ao-rawload/ao-rawload.c
+++ b/ao-tools/ao-rawload/ao-rawload.c
@@ -16,8 +16,21 @@
  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  */
 
+#include <unistd.h>
+#include <getopt.h>
 #include "ccdbg.h"
 
+static const struct option options[] = {
+	{ .name = "tty", .has_arg = 1, .val = 'T' },
+	{ 0, 0, 0, 0},
+};
+
+static void usage(char *program)
+{
+	fprintf(stderr, "usage: %s [--tty <tty-name>] file.ihx\n", program);
+	exit(1);
+}
+
 int
 main (int argc, char **argv)
 {
@@ -26,10 +39,22 @@ main (int argc, char **argv)
 	uint16_t	pc;
 	struct hex_file	*hex;
 	struct hex_image *image;
-	char *filename;
-	FILE *file;
+	char		*filename;
+	FILE		*file;
+	char		*tty = NULL;
+	int		c;
 
-	filename = argv[1];
+	while ((c = getopt_long(argc, argv, "T:", options, NULL)) != -1) {
+		switch (c) {
+		case 'T':
+			tty = optarg;
+			break;
+		default:
+			usage(argv[0]);
+			break;
+		}
+	}
+	filename = argv[optind];
 	if (filename == NULL) {
 		fprintf(stderr, "usage: %s <filename.ihx>\n", argv[0]);
 		exit(1);
@@ -50,7 +75,7 @@ main (int argc, char **argv)
 	}
 
 	ccdbg_hex_file_free(hex);
-	dbg = ccdbg_open();
+	dbg = ccdbg_open(tty);
 	if (!dbg)
 		exit (1);
 
diff --git a/ao-tools/lib/ccdbg-io.c b/ao-tools/lib/ccdbg-io.c
index 9c6693cd..d3f87274 100644
--- a/ao-tools/lib/ccdbg-io.c
+++ b/ao-tools/lib/ccdbg-io.c
@@ -22,25 +22,32 @@
 #include "cc-bitbang.h"
 
 struct ccdbg *
-ccdbg_open(void)
+ccdbg_open(char *tty)
 {
 	struct ccdbg *dbg;
-	char *tty;
 
 	dbg = calloc(sizeof (struct ccdbg), 1);
 	if (!dbg) {
 		perror("calloc");
 		return NULL;
 	}
-	tty = getenv("CCDBG_TTY");
-	if (!tty || tty[0] == '/')
-		dbg->usb = cc_usb_open(tty);
-	if (!dbg->usb) {
+	if (!tty)
+		tty = getenv("ALTOS_TTY");
+	if (!tty)
+		tty="/dev/ttyACM0";
+
+	if (!strcmp(tty, "BITBANG")) {
 		dbg->bb = cc_bitbang_open();
 		if (!dbg->bb) {
 			free(dbg);
 			return NULL;
 		}
+	} else {
+		dbg->usb = cc_usb_open(tty);
+		if (!dbg->usb) {
+			free(dbg);
+			return NULL;
+		}
 	}
 	return dbg;
 }
diff --git a/ao-tools/lib/ccdbg.h b/ao-tools/lib/ccdbg.h
index 4a2e3b9f..ca596143 100644
--- a/ao-tools/lib/ccdbg.h
+++ b/ao-tools/lib/ccdbg.h
@@ -258,7 +258,7 @@ ccdbg_hex_image_equal(struct hex_image *a, struct hex_image *b);
 
 /* ccdbg-io.c */
 struct ccdbg *
-ccdbg_open(void);
+ccdbg_open(char *tty);
 
 void
 ccdbg_close(struct ccdbg *dbg);
diff --git a/ao-tools/lib/cp-usb-async.c b/ao-tools/lib/cp-usb-async.c
index 6539394b..3e75b507 100644
--- a/ao-tools/lib/cp-usb-async.c
+++ b/ao-tools/lib/cp-usb-async.c
@@ -60,6 +60,7 @@ cp_usb_async_open(void)
 						     0x10c4, 0xea60);
 	cp->ack = -1;
 	if (!cp->handle) {
+		fprintf(stderr, "Cannot find USB device 10c4:ea60\n");
 		libusb_exit(cp->ctx);
 		free(cp);
 		return NULL;