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-rw-r--r--common/cmd_terminal.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/common/cmd_terminal.c b/common/cmd_terminal.c
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+++ b/common/cmd_terminal.c
@@ -0,0 +1,102 @@
+/*
+ * (C) Copyright 2007 OpenMoko, Inc.
+ * Written by Harald Welte <laforge@openmoko.org>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Boot support
+ */
+#include <common.h>
+#include <command.h>
+#include <devices.h>
+
+#if defined(CONFIG_CMD_TERMINAL)
+
+int do_terminal(cmd_tbl_t * cmd, int flag, int argc, char *argv[])
+{
+ int i, l;
+ int last_tilde = 0;
+ device_t *dev = NULL;
+
+ if (argc < 1)
+ return -1;
+
+ /* Scan for selected output/input device */
+ for (i = 1; i <= ListNumItems (devlist); i++) {
+ device_t *tmp = ListGetPtrToItem (devlist, i);
+ if (!strcmp(tmp->name, argv[1])) {
+ dev = tmp;
+ break;
+ }
+ }
+ if (!dev)
+ return -1;
+
+ serial_reinit_all();
+ printf("Entering terminal mode for port %s\n", dev->name);
+ puts("Use '~.' to leave the terminal and get back to u-boot\n");
+
+ while (1) {
+ int c;
+
+ /* read from console and display on serial port */
+ if (stdio_devices[0]->tstc()) {
+ c = stdio_devices[0]->getc();
+ if (last_tilde == 1) {
+ if (c == '.') {
+ putc(c);
+ putc('\n');
+ break;
+ } else {
+ last_tilde = 0;
+ /* write the delayed tilde */
+ dev->putc('~');
+ /* fall-through to print current
+ * character */
+ }
+ }
+ if (c == '~') {
+ last_tilde = 1;
+ puts("[u-boot]");
+ putc(c);
+ }
+ dev->putc(c);
+ }
+
+ /* read from serial port and display on console */
+ if (dev->tstc()) {
+ c = dev->getc();
+ putc(c);
+ }
+ }
+ return 0;
+}
+
+
+/***************************************************/
+
+U_BOOT_CMD(
+ terminal, 3, 1, do_terminal,
+ "terminal - start terminal emulator\n",
+ ""
+);
+
+#endif /* CONFIG_CMD_TERMINAL */