diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Makefile | 1 | ||||
| -rw-r--r-- | common/cmd_terminal.c | 102 |
2 files changed, 103 insertions, 0 deletions
diff --git a/common/Makefile b/common/Makefile index 7be89a4..fbfa536 100644 --- a/common/Makefile +++ b/common/Makefile @@ -86,6 +86,7 @@ COBJS-$(CONFIG_CMD_REISER) += cmd_reiser.o COBJS-y += cmd_sata.o COBJS-$(CONFIG_CMD_SCSI) += cmd_scsi.o COBJS-$(CONFIG_CMD_SPI) += cmd_spi.o +COBJS-$(CONFIG_CMD_TERMINAL) += cmd_terminal.o COBJS-$(CONFIG_CMD_UNIVERSE) += cmd_universe.o COBJS-$(CONFIG_CMD_USB) += cmd_usb.o COBJS-y += cmd_vfd.o 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 */ |