118 lines
2.6 KiB
C
118 lines
2.6 KiB
C
/*
|
|
* (C) Copyright 2002-2009
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include <common.h>
|
|
|
|
/* 'inline' - We have to do it fast */
|
|
static inline void mdm_readline(char *buf, int bufsiz)
|
|
{
|
|
char c;
|
|
char *p;
|
|
int n;
|
|
|
|
n = 0;
|
|
p = buf;
|
|
for(;;) {
|
|
c = serial_getc();
|
|
|
|
/* dbg("(%c)", c); */
|
|
|
|
switch(c) {
|
|
case '\r':
|
|
break;
|
|
case '\n':
|
|
*p = '\0';
|
|
return;
|
|
|
|
default:
|
|
if(n++ > bufsiz) {
|
|
*p = '\0';
|
|
return; /* sanity check */
|
|
}
|
|
*p = c;
|
|
p++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
extern void dbg(const char *fmt, ...);
|
|
int mdm_init (void)
|
|
{
|
|
char env_str[16];
|
|
char *init_str;
|
|
int i;
|
|
extern char console_buffer[];
|
|
extern void enable_putc(void);
|
|
extern int hwflow_onoff(int);
|
|
|
|
enable_putc(); /* enable serial_putc() */
|
|
|
|
#ifdef CONFIG_HWFLOW
|
|
init_str = getenv("mdm_flow_control");
|
|
if (init_str && (strcmp(init_str, "rts/cts") == 0))
|
|
hwflow_onoff (1);
|
|
else
|
|
hwflow_onoff(-1);
|
|
#endif
|
|
|
|
for (i = 1;;i++) {
|
|
sprintf(env_str, "mdm_init%d", i);
|
|
if ((init_str = getenv(env_str)) != NULL) {
|
|
serial_puts(init_str);
|
|
serial_puts("\n");
|
|
for(;;) {
|
|
mdm_readline(console_buffer, CONFIG_SYS_CBSIZE);
|
|
dbg("ini%d: [%s]", i, console_buffer);
|
|
|
|
if ((strcmp(console_buffer, "OK") == 0) ||
|
|
(strcmp(console_buffer, "ERROR") == 0)) {
|
|
dbg("ini%d: cmd done", i);
|
|
break;
|
|
} else /* in case we are originating call ... */
|
|
if (strncmp(console_buffer, "CONNECT", 7) == 0) {
|
|
dbg("ini%d: connect", i);
|
|
return 0;
|
|
}
|
|
}
|
|
} else
|
|
break; /* no init string - stop modem init */
|
|
|
|
udelay(100000);
|
|
}
|
|
|
|
udelay(100000);
|
|
|
|
/* final stage - wait for connect */
|
|
for(;i > 1;) { /* if 'i' > 1 - wait for connection
|
|
message from modem */
|
|
mdm_readline(console_buffer, CONFIG_SYS_CBSIZE);
|
|
dbg("ini_f: [%s]", console_buffer);
|
|
if (strncmp(console_buffer, "CONNECT", 7) == 0) {
|
|
dbg("ini_f: connected");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|