Fork with SeeedStudio Xadow GPS v2 enabled
Dependencies: FXOS8700CQ MODSERIAL XadowGPS mbed
Fork of Avnet_ATT_Cellular_IOT by
cell_modem.cpp@75:8cc98a3b9c62, 2016-08-13 (annotated)
- Committer:
- fkellermavnet
- Date:
- Sat Aug 13 17:46:30 2016 +0000
- Revision:
- 75:8cc98a3b9c62
- Parent:
- 74:3e3ee15584e5
- Parent:
- 73:da723fedfdd2
- Child:
- 77:c65eae5b9958
Re-merged in Stefan's branch with Eaddy branch.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
fkellermavnet | 68:6e311c747045 | 1 | /* =================================================================== |
fkellermavnet | 74:3e3ee15584e5 | 2 | Copyright c 2016, AVNET Inc. |
fkellermavnet | 68:6e311c747045 | 3 | |
fkellermavnet | 68:6e311c747045 | 4 | Licensed under the Apache License, Version 2.0 (the "License"); |
fkellermavnet | 68:6e311c747045 | 5 | you may not use this file except in compliance with the License. |
fkellermavnet | 68:6e311c747045 | 6 | You may obtain a copy of the License at |
fkellermavnet | 68:6e311c747045 | 7 | |
fkellermavnet | 68:6e311c747045 | 8 | http://www.apache.org/licenses/LICENSE-2.0 |
fkellermavnet | 68:6e311c747045 | 9 | |
fkellermavnet | 68:6e311c747045 | 10 | Unless required by applicable law or agreed to in writing, |
fkellermavnet | 68:6e311c747045 | 11 | software distributed under the License is distributed on an |
fkellermavnet | 68:6e311c747045 | 12 | "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, |
fkellermavnet | 68:6e311c747045 | 13 | either express or implied. See the License for the specific |
fkellermavnet | 68:6e311c747045 | 14 | language governing permissions and limitations under the License. |
fkellermavnet | 68:6e311c747045 | 15 | |
fkellermavnet | 68:6e311c747045 | 16 | ======================================================================== */ |
fkellermavnet | 68:6e311c747045 | 17 | |
stefanrousseau | 61:f6b93129f954 | 18 | #include "mbed.h" |
stefanrousseau | 61:f6b93129f954 | 19 | #include <cctype> |
stefanrousseau | 61:f6b93129f954 | 20 | #include <string> |
stefanrousseau | 61:f6b93129f954 | 21 | |
stefanrousseau | 61:f6b93129f954 | 22 | #include "config_me.h" |
stefanrousseau | 61:f6b93129f954 | 23 | #include "wnc_control.h" |
stefanrousseau | 61:f6b93129f954 | 24 | #include "hardware.h" |
stefanrousseau | 61:f6b93129f954 | 25 | |
stefanrousseau | 61:f6b93129f954 | 26 | #define MDM_DBG_OFF 0 |
stefanrousseau | 61:f6b93129f954 | 27 | #define MDM_DBG_AT_CMDS (1 << 0) |
stefanrousseau | 61:f6b93129f954 | 28 | int mdm_dbgmask = MDM_DBG_OFF; |
stefanrousseau | 61:f6b93129f954 | 29 | |
stefanrousseau | 61:f6b93129f954 | 30 | #define WNC_WAIT_FOR_AT_CMD_MS 40 |
stefanrousseau | 61:f6b93129f954 | 31 | |
stefanrousseau | 61:f6b93129f954 | 32 | DigitalOut mdm_uart2_rx_boot_mode_sel(PTC17); // on powerup, 0 = boot mode, 1 = normal boot |
stefanrousseau | 61:f6b93129f954 | 33 | DigitalOut mdm_power_on(PTB9); // 0 = turn modem on, 1 = turn modem off (should be held high for >5 seconds to cycle modem) |
stefanrousseau | 61:f6b93129f954 | 34 | DigitalOut mdm_wakeup_in(PTC2); // 0 = let modem sleep, 1 = keep modem awake -- Note: pulled high on shield |
stefanrousseau | 61:f6b93129f954 | 35 | |
stefanrousseau | 61:f6b93129f954 | 36 | DigitalOut mdm_reset(PTC12); // active high |
stefanrousseau | 61:f6b93129f954 | 37 | |
stefanrousseau | 61:f6b93129f954 | 38 | DigitalOut shield_3v3_1v8_sig_trans_ena(PTC4); // 0 = disabled (all signals high impedence, 1 = translation active |
stefanrousseau | 61:f6b93129f954 | 39 | DigitalOut mdm_uart1_cts(PTD0); |
stefanrousseau | 61:f6b93129f954 | 40 | |
stefanrousseau | 61:f6b93129f954 | 41 | #define TOUPPER(a) (a) //toupper(a) |
stefanrousseau | 61:f6b93129f954 | 42 | |
stefanrousseau | 61:f6b93129f954 | 43 | const char ok_str[] = "OK"; |
stefanrousseau | 61:f6b93129f954 | 44 | const char error_str[] = "ERROR"; |
stefanrousseau | 61:f6b93129f954 | 45 | |
stefanrousseau | 61:f6b93129f954 | 46 | #define MDM_OK 0 |
stefanrousseau | 61:f6b93129f954 | 47 | #define MDM_ERR_TIMEOUT -1 |
stefanrousseau | 61:f6b93129f954 | 48 | |
stefanrousseau | 61:f6b93129f954 | 49 | #define MAX_AT_RSP_LEN 255 |
stefanrousseau | 61:f6b93129f954 | 50 | |
stefanrousseau | 61:f6b93129f954 | 51 | ssize_t mdm_getline(char *buff, size_t size, int timeout_ms) { |
stefanrousseau | 61:f6b93129f954 | 52 | int cin = -1; |
stefanrousseau | 61:f6b93129f954 | 53 | int cin_last; |
stefanrousseau | 61:f6b93129f954 | 54 | |
stefanrousseau | 61:f6b93129f954 | 55 | if (NULL == buff || size == 0) { |
stefanrousseau | 61:f6b93129f954 | 56 | return -1; |
stefanrousseau | 61:f6b93129f954 | 57 | } |
stefanrousseau | 61:f6b93129f954 | 58 | |
stefanrousseau | 61:f6b93129f954 | 59 | size_t len = 0; |
stefanrousseau | 61:f6b93129f954 | 60 | Timer timer; |
stefanrousseau | 61:f6b93129f954 | 61 | timer.start(); |
stefanrousseau | 61:f6b93129f954 | 62 | while ((len < (size-1)) && (timer.read_ms() < timeout_ms)) { |
stefanrousseau | 61:f6b93129f954 | 63 | if (mdm.readable()) { |
stefanrousseau | 61:f6b93129f954 | 64 | cin_last = cin; |
stefanrousseau | 61:f6b93129f954 | 65 | cin = mdm.getc(); |
stefanrousseau | 61:f6b93129f954 | 66 | if (isprint(cin)) { |
stefanrousseau | 61:f6b93129f954 | 67 | buff[len++] = (char)cin; |
stefanrousseau | 61:f6b93129f954 | 68 | continue; |
stefanrousseau | 61:f6b93129f954 | 69 | } else if (('\r' == cin_last) && ('\n' == cin)) { |
stefanrousseau | 61:f6b93129f954 | 70 | break; |
stefanrousseau | 61:f6b93129f954 | 71 | } |
stefanrousseau | 61:f6b93129f954 | 72 | } |
stefanrousseau | 61:f6b93129f954 | 73 | // wait_ms(1); |
stefanrousseau | 61:f6b93129f954 | 74 | } |
stefanrousseau | 61:f6b93129f954 | 75 | buff[len] = (char)NULL; |
stefanrousseau | 61:f6b93129f954 | 76 | |
stefanrousseau | 61:f6b93129f954 | 77 | return len; |
stefanrousseau | 61:f6b93129f954 | 78 | } |
stefanrousseau | 61:f6b93129f954 | 79 | |
stefanrousseau | 61:f6b93129f954 | 80 | int mdm_sendAtCmd(const char *cmd, const char **rsp_list, int timeout_ms) { |
stefanrousseau | 61:f6b93129f954 | 81 | // Per WNC wait: |
stefanrousseau | 61:f6b93129f954 | 82 | wait_ms(WNC_WAIT_FOR_AT_CMD_MS); |
stefanrousseau | 61:f6b93129f954 | 83 | |
stefanrousseau | 61:f6b93129f954 | 84 | if (cmd && strlen(cmd) > 0) { |
stefanrousseau | 61:f6b93129f954 | 85 | if (mdm_dbgmask & MDM_DBG_AT_CMDS) { |
stefanrousseau | 64:09004cd610df | 86 | PRINTF(MAG "ATCMD: " DEF "--> " GRN "%s" DEF "\n", cmd); |
stefanrousseau | 61:f6b93129f954 | 87 | } |
stefanrousseau | 61:f6b93129f954 | 88 | mdm.puts(cmd); |
stefanrousseau | 61:f6b93129f954 | 89 | mdm.puts("\r\n"); |
stefanrousseau | 61:f6b93129f954 | 90 | } |
stefanrousseau | 61:f6b93129f954 | 91 | |
stefanrousseau | 61:f6b93129f954 | 92 | if (rsp_list) { |
stefanrousseau | 61:f6b93129f954 | 93 | Timer timer; |
stefanrousseau | 61:f6b93129f954 | 94 | char rsp[MAX_AT_RSP_LEN+1]; |
stefanrousseau | 61:f6b93129f954 | 95 | int len; |
stefanrousseau | 61:f6b93129f954 | 96 | |
stefanrousseau | 61:f6b93129f954 | 97 | timer.start(); |
stefanrousseau | 61:f6b93129f954 | 98 | while (timer.read_ms() < timeout_ms) { |
stefanrousseau | 61:f6b93129f954 | 99 | len = mdm_getline(rsp, sizeof(rsp), timeout_ms - timer.read_ms()); |
stefanrousseau | 61:f6b93129f954 | 100 | |
stefanrousseau | 61:f6b93129f954 | 101 | if (len < 0) |
stefanrousseau | 61:f6b93129f954 | 102 | return MDM_ERR_TIMEOUT; |
stefanrousseau | 61:f6b93129f954 | 103 | |
stefanrousseau | 61:f6b93129f954 | 104 | if (len == 0) |
stefanrousseau | 61:f6b93129f954 | 105 | continue; |
stefanrousseau | 61:f6b93129f954 | 106 | |
stefanrousseau | 61:f6b93129f954 | 107 | if (mdm_dbgmask & MDM_DBG_AT_CMDS) { |
stefanrousseau | 64:09004cd610df | 108 | PRINTF(MAG "ATRSP: " DEF "<-- " CYN "%s" DEF "\n", rsp); |
stefanrousseau | 61:f6b93129f954 | 109 | } |
stefanrousseau | 61:f6b93129f954 | 110 | |
stefanrousseau | 61:f6b93129f954 | 111 | if (rsp_list) { |
stefanrousseau | 61:f6b93129f954 | 112 | int rsp_idx = 0; |
stefanrousseau | 61:f6b93129f954 | 113 | while (rsp_list[rsp_idx]) { |
stefanrousseau | 61:f6b93129f954 | 114 | if (strcasecmp(rsp, rsp_list[rsp_idx]) == 0) { |
stefanrousseau | 61:f6b93129f954 | 115 | return rsp_idx; |
fkellermavnet | 74:3e3ee15584e5 | 116 | } else if (strncmp(rsp, "@EXTERR", 7) == 0){ |
fkellermavnet | 74:3e3ee15584e5 | 117 | pc.printf("----- We got EXTERR ---\r\n"); |
fkellermavnet | 74:3e3ee15584e5 | 118 | return 2; |
fkellermavnet | 74:3e3ee15584e5 | 119 | } else if (strncmp(rsp, "+CME", 4) == 0){ |
fkellermavnet | 74:3e3ee15584e5 | 120 | return 3; |
fkellermavnet | 74:3e3ee15584e5 | 121 | } |
stefanrousseau | 61:f6b93129f954 | 122 | rsp_idx++; |
stefanrousseau | 61:f6b93129f954 | 123 | } |
stefanrousseau | 61:f6b93129f954 | 124 | } |
stefanrousseau | 61:f6b93129f954 | 125 | } |
stefanrousseau | 61:f6b93129f954 | 126 | return MDM_ERR_TIMEOUT; |
stefanrousseau | 61:f6b93129f954 | 127 | } |
stefanrousseau | 61:f6b93129f954 | 128 | return MDM_OK; |
stefanrousseau | 61:f6b93129f954 | 129 | } |
stefanrousseau | 61:f6b93129f954 | 130 | |
stefanrousseau | 61:f6b93129f954 | 131 | int mdm_init(void) { |
stefanrousseau | 61:f6b93129f954 | 132 | // Hard reset the modem (doesn't go through |
stefanrousseau | 61:f6b93129f954 | 133 | // the signal level translator) |
stefanrousseau | 61:f6b93129f954 | 134 | mdm_reset = 0; |
stefanrousseau | 61:f6b93129f954 | 135 | |
stefanrousseau | 61:f6b93129f954 | 136 | // disable signal level translator (necessary |
stefanrousseau | 61:f6b93129f954 | 137 | // for the modem to boot properly). All signals |
stefanrousseau | 61:f6b93129f954 | 138 | // except mdm_reset go through the level translator |
stefanrousseau | 61:f6b93129f954 | 139 | // and have internal pull-up/down in the module. While |
stefanrousseau | 61:f6b93129f954 | 140 | // the level translator is disabled, these pins will |
stefanrousseau | 61:f6b93129f954 | 141 | // be in the correct state. |
stefanrousseau | 61:f6b93129f954 | 142 | shield_3v3_1v8_sig_trans_ena = 0; |
stefanrousseau | 61:f6b93129f954 | 143 | |
stefanrousseau | 61:f6b93129f954 | 144 | // While the level translator is disabled and ouptut pins |
stefanrousseau | 61:f6b93129f954 | 145 | // are tristated, make sure the inputs are in the same state |
stefanrousseau | 61:f6b93129f954 | 146 | // as the WNC Module pins so that when the level translator is |
stefanrousseau | 61:f6b93129f954 | 147 | // enabled, there are no differences. |
stefanrousseau | 61:f6b93129f954 | 148 | mdm_uart2_rx_boot_mode_sel = 1; // UART2_RX should be high |
stefanrousseau | 61:f6b93129f954 | 149 | mdm_power_on = 0; // powr_on should be low |
stefanrousseau | 61:f6b93129f954 | 150 | mdm_wakeup_in = 1; // wake-up should be high |
stefanrousseau | 61:f6b93129f954 | 151 | mdm_uart1_cts = 0; // indicate that it is ok to send |
stefanrousseau | 61:f6b93129f954 | 152 | |
stefanrousseau | 61:f6b93129f954 | 153 | // Now, wait for the WNC Module to perform its initial boot correctly |
stefanrousseau | 61:f6b93129f954 | 154 | wait(1.0); |
stefanrousseau | 61:f6b93129f954 | 155 | |
stefanrousseau | 61:f6b93129f954 | 156 | // The WNC module initializes comms at 115200 8N1 so set it up |
stefanrousseau | 61:f6b93129f954 | 157 | mdm.baud(115200); |
stefanrousseau | 61:f6b93129f954 | 158 | |
stefanrousseau | 61:f6b93129f954 | 159 | //Now, enable the level translator, the input pins should now be the |
stefanrousseau | 61:f6b93129f954 | 160 | //same as how the M14A module is driving them with internal pull ups/downs. |
stefanrousseau | 61:f6b93129f954 | 161 | //When enabled, there will be no changes in these 4 pins... |
stefanrousseau | 61:f6b93129f954 | 162 | shield_3v3_1v8_sig_trans_ena = 1; |
stefanrousseau | 61:f6b93129f954 | 163 | |
stefanrousseau | 61:f6b93129f954 | 164 | // Now, give the modem 60 seconds to start responding by |
stefanrousseau | 61:f6b93129f954 | 165 | // sending simple 'AT' commands to modem once per second. |
stefanrousseau | 61:f6b93129f954 | 166 | Timer timer; |
stefanrousseau | 61:f6b93129f954 | 167 | timer.start(); |
stefanrousseau | 61:f6b93129f954 | 168 | while (timer.read() < 60) { |
stefanrousseau | 61:f6b93129f954 | 169 | const char * rsp_lst[] = { ok_str, error_str, NULL }; |
stefanrousseau | 61:f6b93129f954 | 170 | int rc = mdm_sendAtCmd("AT", rsp_lst, 500); |
stefanrousseau | 61:f6b93129f954 | 171 | if (rc == 0) |
stefanrousseau | 61:f6b93129f954 | 172 | return true; //timer.read(); |
stefanrousseau | 61:f6b93129f954 | 173 | wait_ms(1000 - (timer.read_ms() % 1000)); |
stefanrousseau | 64:09004cd610df | 174 | PRINTF("\r%d",timer.read_ms()/1000); |
stefanrousseau | 61:f6b93129f954 | 175 | } |
stefanrousseau | 61:f6b93129f954 | 176 | return false; |
stefanrousseau | 61:f6b93129f954 | 177 | } |
stefanrousseau | 61:f6b93129f954 | 178 | |
stefanrousseau | 61:f6b93129f954 | 179 | int mdm_sendAtCmdRsp(const char *cmd, const char **rsp_list, int timeout_ms, string * rsp, int * len) { |
stefanrousseau | 61:f6b93129f954 | 180 | static char cmd_buf[3200]; // Need enough room for the WNC sockreads (over 3000 chars) |
stefanrousseau | 61:f6b93129f954 | 181 | size_t n = strlen(cmd); |
stefanrousseau | 61:f6b93129f954 | 182 | |
stefanrousseau | 61:f6b93129f954 | 183 | // Per WNC wait: |
stefanrousseau | 61:f6b93129f954 | 184 | wait_ms(WNC_WAIT_FOR_AT_CMD_MS); |
stefanrousseau | 61:f6b93129f954 | 185 | |
stefanrousseau | 61:f6b93129f954 | 186 | if (cmd && n > 0) { |
stefanrousseau | 61:f6b93129f954 | 187 | if (mdm_dbgmask & MDM_DBG_AT_CMDS) { |
stefanrousseau | 64:09004cd610df | 188 | PRINTF(MAG "ATCMD: " DEF "--> " GRN "%s" DEF "\n", cmd); |
stefanrousseau | 61:f6b93129f954 | 189 | } |
stefanrousseau | 61:f6b93129f954 | 190 | // mdm.puts(cmd); |
stefanrousseau | 61:f6b93129f954 | 191 | // mdm.puts("\r\n"); |
stefanrousseau | 61:f6b93129f954 | 192 | while (n--) { |
stefanrousseau | 61:f6b93129f954 | 193 | mdm.putc(*cmd++); |
stefanrousseau | 61:f6b93129f954 | 194 | wait_us(1000); |
stefanrousseau | 61:f6b93129f954 | 195 | }; |
stefanrousseau | 61:f6b93129f954 | 196 | mdm.putc('\r'); |
stefanrousseau | 61:f6b93129f954 | 197 | wait_us(1000); |
stefanrousseau | 61:f6b93129f954 | 198 | mdm.putc('\n'); |
stefanrousseau | 61:f6b93129f954 | 199 | wait_us(1000); |
stefanrousseau | 61:f6b93129f954 | 200 | } |
stefanrousseau | 61:f6b93129f954 | 201 | |
stefanrousseau | 61:f6b93129f954 | 202 | if (rsp_list) { |
stefanrousseau | 61:f6b93129f954 | 203 | rsp->erase(); // Clean up from prior cmd response |
stefanrousseau | 61:f6b93129f954 | 204 | *len = 0; |
stefanrousseau | 61:f6b93129f954 | 205 | Timer timer; |
stefanrousseau | 61:f6b93129f954 | 206 | timer.start(); |
stefanrousseau | 61:f6b93129f954 | 207 | while (timer.read_ms() < timeout_ms) { |
stefanrousseau | 61:f6b93129f954 | 208 | int lenCmd = mdm_getline(cmd_buf, sizeof(cmd_buf), timeout_ms - timer.read_ms()); |
stefanrousseau | 61:f6b93129f954 | 209 | |
stefanrousseau | 61:f6b93129f954 | 210 | if (lenCmd == 0) |
stefanrousseau | 61:f6b93129f954 | 211 | continue; |
stefanrousseau | 61:f6b93129f954 | 212 | |
stefanrousseau | 61:f6b93129f954 | 213 | if (lenCmd < 0) |
stefanrousseau | 61:f6b93129f954 | 214 | return MDM_ERR_TIMEOUT; |
stefanrousseau | 61:f6b93129f954 | 215 | else { |
stefanrousseau | 61:f6b93129f954 | 216 | *len += lenCmd; |
stefanrousseau | 61:f6b93129f954 | 217 | *rsp += cmd_buf; |
stefanrousseau | 61:f6b93129f954 | 218 | } |
stefanrousseau | 61:f6b93129f954 | 219 | |
stefanrousseau | 61:f6b93129f954 | 220 | if (mdm_dbgmask & MDM_DBG_AT_CMDS) { |
stefanrousseau | 64:09004cd610df | 221 | PRINTF(MAG "ATRSP: " DEF "<-- " CYN "%s" DEF "\n", cmd_buf); |
stefanrousseau | 61:f6b93129f954 | 222 | } |
stefanrousseau | 61:f6b93129f954 | 223 | |
stefanrousseau | 61:f6b93129f954 | 224 | int rsp_idx = 0; |
fkellermavnet | 73:da723fedfdd2 | 225 | // TODO: Test if @EXTERR:<code> |
stefanrousseau | 61:f6b93129f954 | 226 | while (rsp_list[rsp_idx]) { |
stefanrousseau | 61:f6b93129f954 | 227 | if (strcasecmp(cmd_buf, rsp_list[rsp_idx]) == 0) { |
stefanrousseau | 61:f6b93129f954 | 228 | return rsp_idx; |
fkellermavnet | 73:da723fedfdd2 | 229 | } else if (strncmp(cmd_buf, "@EXTERR", 7) == 0){ |
fkellermavnet | 75:8cc98a3b9c62 | 230 | PRINTF("----- We got EXTERR ---\r\n"); |
fkellermavnet | 74:3e3ee15584e5 | 231 | return 2; |
fkellermavnet | 74:3e3ee15584e5 | 232 | } else if (strncmp(cmd_buf, "+CME", 4) == 0){ |
fkellermavnet | 74:3e3ee15584e5 | 233 | return 3; |
fkellermavnet | 74:3e3ee15584e5 | 234 | } |
stefanrousseau | 61:f6b93129f954 | 235 | rsp_idx++; |
stefanrousseau | 61:f6b93129f954 | 236 | } |
stefanrousseau | 61:f6b93129f954 | 237 | } |
stefanrousseau | 61:f6b93129f954 | 238 | return MDM_ERR_TIMEOUT; |
stefanrousseau | 61:f6b93129f954 | 239 | } |
stefanrousseau | 61:f6b93129f954 | 240 | |
stefanrousseau | 61:f6b93129f954 | 241 | return MDM_OK; |
stefanrousseau | 61:f6b93129f954 | 242 | } |
stefanrousseau | 61:f6b93129f954 | 243 | |
stefanrousseau | 61:f6b93129f954 | 244 | void reinitialize_mdm(void) |
stefanrousseau | 61:f6b93129f954 | 245 | { |
stefanrousseau | 61:f6b93129f954 | 246 | // Initialize the modem |
stefanrousseau | 64:09004cd610df | 247 | PRINTF(GRN "Modem RE-initializing..." DEF "\r\n"); |
stefanrousseau | 61:f6b93129f954 | 248 | if (!mdm_init()) { |
stefanrousseau | 64:09004cd610df | 249 | PRINTF(RED "\n\rModem RE-initialization failed!" DEF "\n"); |
stefanrousseau | 61:f6b93129f954 | 250 | } |
stefanrousseau | 64:09004cd610df | 251 | PRINTF("\r\n"); |
stefanrousseau | 61:f6b93129f954 | 252 | } |
stefanrousseau | 61:f6b93129f954 | 253 | // These are built on the fly |
stefanrousseau | 61:f6b93129f954 | 254 | string MyServerIpAddress; |
stefanrousseau | 61:f6b93129f954 | 255 | string MySocketData; |
stefanrousseau | 61:f6b93129f954 | 256 | |
stefanrousseau | 61:f6b93129f954 | 257 | //******************************************************************************************************************************************** |
stefanrousseau | 61:f6b93129f954 | 258 | //* Process JSON response messages |
stefanrousseau | 61:f6b93129f954 | 259 | //******************************************************************************************************************************************** |
stefanrousseau | 61:f6b93129f954 | 260 | bool extract_JSON(char* search_field, char* found_string) |
stefanrousseau | 61:f6b93129f954 | 261 | { |
stefanrousseau | 61:f6b93129f954 | 262 | char* beginquote; |
stefanrousseau | 61:f6b93129f954 | 263 | char* endquote; |
stefanrousseau | 61:f6b93129f954 | 264 | beginquote = strchr(search_field, '{'); //start of JSON |
stefanrousseau | 61:f6b93129f954 | 265 | endquote = strchr(search_field, '}'); //end of JSON |
stefanrousseau | 61:f6b93129f954 | 266 | if (beginquote) |
stefanrousseau | 61:f6b93129f954 | 267 | { |
stefanrousseau | 61:f6b93129f954 | 268 | uint16_t ifoundlen; |
stefanrousseau | 61:f6b93129f954 | 269 | if (endquote) |
stefanrousseau | 61:f6b93129f954 | 270 | { |
stefanrousseau | 61:f6b93129f954 | 271 | ifoundlen = (uint16_t) (endquote - beginquote) + 1; |
stefanrousseau | 61:f6b93129f954 | 272 | strncpy(found_string, beginquote, ifoundlen ); |
stefanrousseau | 61:f6b93129f954 | 273 | found_string[ifoundlen] = 0; //null terminate |
stefanrousseau | 61:f6b93129f954 | 274 | return true; |
stefanrousseau | 61:f6b93129f954 | 275 | } |
stefanrousseau | 61:f6b93129f954 | 276 | else |
stefanrousseau | 61:f6b93129f954 | 277 | { |
stefanrousseau | 61:f6b93129f954 | 278 | endquote = strchr(search_field, '\0'); //end of string... sometimes the end bracket is missing |
stefanrousseau | 61:f6b93129f954 | 279 | ifoundlen = (uint16_t) (endquote - beginquote) + 1; |
stefanrousseau | 61:f6b93129f954 | 280 | strncpy(found_string, beginquote, ifoundlen ); |
stefanrousseau | 61:f6b93129f954 | 281 | found_string[ifoundlen] = 0; //null terminate |
stefanrousseau | 61:f6b93129f954 | 282 | return false; |
stefanrousseau | 61:f6b93129f954 | 283 | } |
stefanrousseau | 61:f6b93129f954 | 284 | } |
stefanrousseau | 61:f6b93129f954 | 285 | else |
stefanrousseau | 61:f6b93129f954 | 286 | { |
stefanrousseau | 61:f6b93129f954 | 287 | return false; |
stefanrousseau | 61:f6b93129f954 | 288 | } |
stefanrousseau | 61:f6b93129f954 | 289 | } //extract_JSON |
stefanrousseau | 61:f6b93129f954 | 290 | |
stefanrousseau | 61:f6b93129f954 | 291 | int cell_modem_init() |
stefanrousseau | 61:f6b93129f954 | 292 | { |
stefanrousseau | 61:f6b93129f954 | 293 | int i; |
stefanrousseau | 61:f6b93129f954 | 294 | |
stefanrousseau | 61:f6b93129f954 | 295 | pc.baud(115200); |
stefanrousseau | 61:f6b93129f954 | 296 | // Initialize the modem |
stefanrousseau | 64:09004cd610df | 297 | PRINTF(GRN "Modem initializing... will take up to 60 seconds" DEF "\r\n"); |
stefanrousseau | 61:f6b93129f954 | 298 | do { |
stefanrousseau | 61:f6b93129f954 | 299 | i=mdm_init(); |
stefanrousseau | 61:f6b93129f954 | 300 | if (!i) { |
stefanrousseau | 64:09004cd610df | 301 | PRINTF(RED "Modem initialization failed!" DEF "\n"); |
stefanrousseau | 61:f6b93129f954 | 302 | } |
stefanrousseau | 61:f6b93129f954 | 303 | } while (!i); |
stefanrousseau | 61:f6b93129f954 | 304 | |
stefanrousseau | 61:f6b93129f954 | 305 | //Software init |
stefanrousseau | 61:f6b93129f954 | 306 | software_init_mdm(); |
stefanrousseau | 61:f6b93129f954 | 307 | |
stefanrousseau | 61:f6b93129f954 | 308 | // Resolve URL to IP address to connect to |
stefanrousseau | 61:f6b93129f954 | 309 | resolve_mdm(); |
stefanrousseau | 61:f6b93129f954 | 310 | // Open the socket (connect to the server) |
stefanrousseau | 61:f6b93129f954 | 311 | sockopen_mdm(); |
stefanrousseau | 61:f6b93129f954 | 312 | return (0); |
stefanrousseau | 61:f6b93129f954 | 313 | } |
stefanrousseau | 61:f6b93129f954 | 314 | |
stefanrousseau | 61:f6b93129f954 | 315 | int cell_modem_Sendreceive(char* tx_string, char* rx_string) |
stefanrousseau | 61:f6b93129f954 | 316 | { |
stefanrousseau | 61:f6b93129f954 | 317 | int iStatus = 0; //error by default |
stefanrousseau | 64:09004cd610df | 318 | PRINTF(DEF "\r\n"); |
stefanrousseau | 64:09004cd610df | 319 | PRINTF(BLU "Sending to modem : %s" DEF "\r\n", &tx_string[0]); |
stefanrousseau | 61:f6b93129f954 | 320 | sockwrite_mdm(&tx_string[0]); |
stefanrousseau | 61:f6b93129f954 | 321 | if (sockread_mdm(&MySocketData, 1024, 20)) |
stefanrousseau | 61:f6b93129f954 | 322 | { |
stefanrousseau | 64:09004cd610df | 323 | PRINTF(DEF "\r\n"); |
stefanrousseau | 64:09004cd610df | 324 | PRINTF(YEL "Read back : %s" DEF "\r\n", &MySocketData[0]); |
stefanrousseau | 61:f6b93129f954 | 325 | char stringToCharBuf[BUF_SIZE_FOR_N_MAX_SOCKREAD*MAX_WNC_SOCKREAD_PAYLOAD+1]; // WNC can return max of 1500 (per sockread) |
stefanrousseau | 61:f6b93129f954 | 326 | if ((MySocketData.length() + 1) < sizeof(stringToCharBuf)) |
stefanrousseau | 61:f6b93129f954 | 327 | { |
stefanrousseau | 61:f6b93129f954 | 328 | strcpy(stringToCharBuf, MySocketData.c_str()); |
stefanrousseau | 61:f6b93129f954 | 329 | if (extract_JSON(stringToCharBuf, &rx_string[0])) |
stefanrousseau | 61:f6b93129f954 | 330 | { |
stefanrousseau | 64:09004cd610df | 331 | PRINTF(GRN "JSON : %s" DEF "\n", &rx_string[0]); |
stefanrousseau | 61:f6b93129f954 | 332 | iStatus = 1; //all good |
stefanrousseau | 61:f6b93129f954 | 333 | } |
stefanrousseau | 61:f6b93129f954 | 334 | } |
stefanrousseau | 61:f6b93129f954 | 335 | else |
stefanrousseau | 61:f6b93129f954 | 336 | { |
stefanrousseau | 64:09004cd610df | 337 | PRINTF(RED "BUFFER not big enough for sock data!" DEF "\r\n"); |
stefanrousseau | 61:f6b93129f954 | 338 | } |
stefanrousseau | 61:f6b93129f954 | 339 | } |
stefanrousseau | 61:f6b93129f954 | 340 | else |
stefanrousseau | 61:f6b93129f954 | 341 | { |
stefanrousseau | 64:09004cd610df | 342 | PRINTF(RED "No response..." DEF "\r\n"); |
stefanrousseau | 61:f6b93129f954 | 343 | } |
stefanrousseau | 61:f6b93129f954 | 344 | return iStatus; |
stefanrousseau | 61:f6b93129f954 | 345 | } |