projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 55e0ed60 JCPV |
1 | /* |
| 2 | * (C) Copyright 2002-2009 | |
| 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
| 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 | #include <common.h> | |
| 25 | ||
| 26 | /* 'inline' - We have to do it fast */ | |
| 27 | static inline void mdm_readline(char *buf, int bufsiz) | |
| 28 | { | |
| 29 | char c; | |
| 30 | char *p; | |
| 31 | int n; | |
| 32 | ||
| 33 | n = 0; | |
| 34 | p = buf; | |
| 35 | for(;;) { | |
| 36 | c = serial_getc(); | |
| 37 | ||
| 38 | /* dbg("(%c)", c); */ | |
| 39 | ||
| 40 | switch(c) { | |
| 41 | case '\r': | |
| 42 | break; | |
| 43 | case '\n': | |
| 44 | *p = '\0'; | |
| 45 | return; | |
| 46 | ||
| 47 | default: | |
| 48 | if(n++ > bufsiz) { | |
| 49 | *p = '\0'; | |
| 50 | return; /* sanity check */ | |
| 51 | } | |
| 52 | *p = c; | |
| 53 | p++; | |
| 54 | break; | |
| 55 | } | |
| 56 | } | |
| 57 | } | |
| 58 | ||
| 59 | extern void dbg(const char *fmt, ...); | |
| 60 | int mdm_init (void) | |
| 61 | { | |
| 62 | char env_str[16]; | |
| 63 | char *init_str; | |
| 64 | int i; | |
| 65 | extern char console_buffer[]; | |
| 66 | extern void enable_putc(void); | |
| 67 | extern int hwflow_onoff(int); | |
| 68 | ||
| 69 | enable_putc(); /* enable serial_putc() */ | |
| 70 | ||
| 71 | #ifdef CONFIG_HWFLOW | |
| 72 | init_str = getenv("mdm_flow_control"); | |
| 73 | if (init_str && (strcmp(init_str, "rts/cts") == 0)) | |
| 74 | hwflow_onoff (1); | |
| 75 | else | |
| 76 | hwflow_onoff(-1); | |
| 77 | #endif | |
| 78 | ||
| 79 | for (i = 1;;i++) { | |
| 80 | sprintf(env_str, "mdm_init%d", i); | |
| 81 | if ((init_str = getenv(env_str)) != NULL) { | |
| 82 | serial_puts(init_str); | |
| 83 | serial_puts("\n"); | |
| 84 | for(;;) { | |
| 85 | mdm_readline(console_buffer, CONFIG_SYS_CBSIZE); | |
| 86 | dbg("ini%d: [%s]", i, console_buffer); | |
| 87 | ||
| 88 | if ((strcmp(console_buffer, "OK") == 0) || | |
| 89 | (strcmp(console_buffer, "ERROR") == 0)) { | |
| 90 | dbg("ini%d: cmd done", i); | |
| 91 | break; | |
| 92 | } else /* in case we are originating call ... */ | |
| 93 | if (strncmp(console_buffer, "CONNECT", 7) == 0) { | |
| 94 | dbg("ini%d: connect", i); | |
| 95 | return 0; | |
| 96 | } | |
| 97 | } | |
| 98 | } else | |
| 99 | break; /* no init string - stop modem init */ | |
| 100 | ||
| 101 | udelay(100000); | |
| 102 | } | |
| 103 | ||
| 104 | udelay(100000); | |
| 105 | ||
| 106 | /* final stage - wait for connect */ | |
| 107 | for(;i > 1;) { /* if 'i' > 1 - wait for connection | |
| 108 | message from modem */ | |
| 109 | mdm_readline(console_buffer, CONFIG_SYS_CBSIZE); | |
| 110 | dbg("ini_f: [%s]", console_buffer); | |
| 111 | if (strncmp(console_buffer, "CONNECT", 7) == 0) { | |
| 112 | dbg("ini_f: connected"); | |
| 113 | return 0; | |
| 114 | } | |
| 115 | } | |
| 116 | ||
| 117 | return 0; | |
| 118 | } |