common/cmd_terminal.c

   1 /*
   2  * (C) Copyright 2007 OpenMoko, Inc.
   3  * Written by Harald Welte <laforge@openmoko.org>
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 /*
  25  * Boot support
  26  */
  27 #include <common.h>
  28 #include <command.h>
  29 #include <devices.h>
  30
  31 #if defined(CONFIG_CMD_TERMINAL)
  32
  33 int do_terminal(cmd_tbl_t * cmd, int flag, int argc, char *argv[])
  34 {
  35         int i, l;
  36         int last_tilde = 0;
  37         device_t *dev = NULL;
  38
  39         if (argc < 1)
  40                 return -1;
  41
  42         /* Scan for selected output/input device */
  43         for (i = 1; i <= ListNumItems (devlist); i++) {
  44                 device_t *tmp = ListGetPtrToItem (devlist, i);
  45                 if (!strcmp(tmp->name, argv[1])) {
  46                         dev = tmp;
  47                         break;
  48                 }
  49         }
  50         if (!dev)
  51                 return -1;
  52
  53 #if defined(CONFIG_ARCH_GTA01_v3) || defined(CONFIG_ARCH_GTA01_v4) || \
  54     defined(CONFIG_ARCH_GTA01B_v2) || defined(CONFIG_ARCH_GTA01B_v3) || \
  55     defined(CONFIG_ARCH_GTA01B_v4)
  56         if (!strcmp(dev->name, "serial") ||
  57             !strcmp(dev->name, "s3ser0"))
  58                 neo1973_gta01_serial0_gsm(1);
  59 #endif
  60
  61         //serial_reinit_all();
  62         printf("Entering terminal mode for port %s\n", dev->name);
  63         puts("Use '~.' to leave the terminal and get back to u-boot\n");
  64
  65         while (1) {
  66                 int c;
  67
  68                 /* read from console and display on serial port */
  69                 if (stdio_devices[0]->tstc()) {
  70                         c = stdio_devices[0]->getc();
  71                         if (last_tilde == 1) {
  72                                 if (c == '.') {
  73                                         putc(c);
  74                                         putc('\n');
  75                                         break;
  76                                 } else {
  77                                         last_tilde = 0;
  78                                         /* write the delayed tilde */
  79                                         dev->putc('~');
  80                                         /* fall-through to print current
  81                                          * character */
  82                                 }
  83                         }
  84                         if (c == '~') {
  85                                 last_tilde = 1;
  86                                 puts("[u-boot]");
  87                                 putc(c);
  88                         }
  89                         dev->putc(c);
  90                 }
  91
  92                 /* read from serial port and display on console */
  93                 if (dev->tstc()) {
  94                         c = dev->getc();
  95                         putc(c);
  96                 }
  97         }
  98 #if defined(CONFIG_ARCH_GTA01_v3) || defined(CONFIG_ARCH_GTA01_v4) || \
  99     defined(CONFIG_ARCH_GTA01B_v2) || defined(CONFIG_ARCH_GTA01B_v3) || \
 100     defined(CONFIG_ARCH_GTA01B_v4)
 101         if (!strcmp(dev->name, "serial") ||
 102             !strcmp(dev->name, "s3ser0"))
 103                 neo1973_gta01_serial0_gsm(0);
 104 #endif
 105
 106         return 0;
 107 }
 108
 109
 110 /***************************************************/
 111
 112 U_BOOT_CMD(
 113         terminal,       3,      1,      do_terminal,
 114         "terminal - start terminal emulator\n",
 115         ""
 116 );
 117
 118 #endif /* CONFIG_CMD_TERMINAL */