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 | * | |
| 1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 55e0ed60 JCPV |
6 | */ |
| 7 | ||
| 8 | #include <common.h> | |
| 9 | ||
| 10 | /* 'inline' - We have to do it fast */ | |
| 11 | static inline void mdm_readline(char *buf, int bufsiz) | |
| 12 | { | |
| 13 | char c; | |
| 14 | char *p; | |
| 15 | int n; | |
| 16 | ||
| 17 | n = 0; | |
| 18 | p = buf; | |
| 19 | for(;;) { | |
| 20 | c = serial_getc(); | |
| 21 | ||
| 22 | /* dbg("(%c)", c); */ | |
| 23 | ||
| 24 | switch(c) { | |
| 25 | case '\r': | |
| 26 | break; | |
| 27 | case '\n': | |
| 28 | *p = '\0'; | |
| 29 | return; | |
| 30 | ||
| 31 | default: | |
| 32 | if(n++ > bufsiz) { | |
| 33 | *p = '\0'; | |
| 34 | return; /* sanity check */ | |
| 35 | } | |
| 36 | *p = c; | |
| 37 | p++; | |
| 38 | break; | |
| 39 | } | |
| 40 | } | |
| 41 | } | |
| 42 | ||
| 43 | extern void dbg(const char *fmt, ...); | |
| 44 | int mdm_init (void) | |
| 45 | { | |
| 46 | char env_str[16]; | |
| 47 | char *init_str; | |
| 48 | int i; | |
| 55e0ed60 JCPV |
49 | extern void enable_putc(void); |
| 50 | extern int hwflow_onoff(int); | |
| 51 | ||
| 52 | enable_putc(); /* enable serial_putc() */ | |
| 53 | ||
| 54 | #ifdef CONFIG_HWFLOW | |
| 55 | init_str = getenv("mdm_flow_control"); | |
| 56 | if (init_str && (strcmp(init_str, "rts/cts") == 0)) | |
| 57 | hwflow_onoff (1); | |
| 58 | else | |
| 59 | hwflow_onoff(-1); | |
| 60 | #endif | |
| 61 | ||
| 62 | for (i = 1;;i++) { | |
| 63 | sprintf(env_str, "mdm_init%d", i); | |
| 64 | if ((init_str = getenv(env_str)) != NULL) { | |
| 65 | serial_puts(init_str); | |
| 66 | serial_puts("\n"); | |
| 67 | for(;;) { | |
| 68 | mdm_readline(console_buffer, CONFIG_SYS_CBSIZE); | |
| 69 | dbg("ini%d: [%s]", i, console_buffer); | |
| 70 | ||
| 71 | if ((strcmp(console_buffer, "OK") == 0) || | |
| 72 | (strcmp(console_buffer, "ERROR") == 0)) { | |
| 73 | dbg("ini%d: cmd done", i); | |
| 74 | break; | |
| 75 | } else /* in case we are originating call ... */ | |
| 76 | if (strncmp(console_buffer, "CONNECT", 7) == 0) { | |
| 77 | dbg("ini%d: connect", i); | |
| 78 | return 0; | |
| 79 | } | |
| 80 | } | |
| 81 | } else | |
| 82 | break; /* no init string - stop modem init */ | |
| 83 | ||
| 84 | udelay(100000); | |
| 85 | } | |
| 86 | ||
| 87 | udelay(100000); | |
| 88 | ||
| 89 | /* final stage - wait for connect */ | |
| 90 | for(;i > 1;) { /* if 'i' > 1 - wait for connection | |
| 91 | message from modem */ | |
| 92 | mdm_readline(console_buffer, CONFIG_SYS_CBSIZE); | |
| 93 | dbg("ini_f: [%s]", console_buffer); | |
| 94 | if (strncmp(console_buffer, "CONNECT", 7) == 0) { | |
| 95 | dbg("ini_f: connected"); | |
| 96 | return 0; | |
| 97 | } | |
| 98 | } | |
| 99 | ||
| 100 | return 0; | |
| 101 | } |