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author | Markus Klotzbuecher <mk@denx.de> | 2008-01-09 13:57:10 +0100 |
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committer | Markus Klotzbuecher <mk@denx.de> | 2008-01-09 13:57:10 +0100 |
commit | 6a40ef62c4300e9f606deef0a4618cbc4b514a51 (patch) | |
tree | c01bdd0e773d092f13af05567fa92fb9072df9e0 /common/cmd_terminal.c | |
parent | 245a362ad3c0c1b84fccc9fec7b623eb14f6e502 (diff) | |
parent | 07eb02687f008721974a2fb54cd7fdc28033ab3c (diff) | |
download | u-boot-imx-6a40ef62c4300e9f606deef0a4618cbc4b514a51.zip u-boot-imx-6a40ef62c4300e9f606deef0a4618cbc4b514a51.tar.gz u-boot-imx-6a40ef62c4300e9f606deef0a4618cbc4b514a51.tar.bz2 |
Merge git://www.denx.de/git/u-boot
Conflicts:
board/tqm5200/tqm5200.c
Diffstat (limited to 'common/cmd_terminal.c')
-rw-r--r-- | common/cmd_terminal.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/common/cmd_terminal.c b/common/cmd_terminal.c new file mode 100644 index 0000000..8871607 --- /dev/null +++ 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 */ |