mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-11-04 10:21:25 +01:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
102 lines
1.9 KiB
C
102 lines
1.9 KiB
C
/*
|
|
* (C) Copyright 2002-2009
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#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 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;
|
|
}
|