cc
Diff: SPWFSA01.cpp
- Revision:
- 0:9e5d98ceea74
- Child:
- 1:becf69a794fb
diff -r 000000000000 -r 9e5d98ceea74 SPWFSA01.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SPWFSA01.cpp Thu Jun 30 06:04:46 2016 +0000 @@ -0,0 +1,297 @@ +/* SPWFInterface Example + * Copyright (c) 2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "SPWFSA01.h" + +#define SPWFSA01_CONNECT_TIMEOUT 15000 +#define SPWFSA01_SEND_TIMEOUT 500 +#define SPWFSA01_RECV_TIMEOUT 1000//some commands like AT&F/W takes some time to get the result back! +#define SPWFSA01_MISC_TIMEOUT 500 + +SPWFSA01::SPWFSA01(PinName tx, PinName rx, bool debug) + : _serial(tx, rx, 1024), _parser(_serial), + _wakeup(PC_8, PIN_INPUT, PullNone, 0), _reset(PC_12, PIN_INPUT, PullNone, 1) + //Pin PC_8 is wakeup pin + //Pin PA_12 is reset pin +{ + _serial.baud(115200); + _reset.output(); + _wakeup.output(); + _parser.debugOn(debug); +} + +bool SPWFSA01::startup(int mode) +{ + setTimeout(SPWFSA01_RECV_TIMEOUT); + + /*Test module before reset*/ + waitSPWFReady(); + /*Reset module*/ + reset(); + + /*set local echo to 0*/ + if(!(_parser.send("AT+S.SCFG=localecho1,%d", 0) && _parser.recv("OK"))) + { + printf("\r\nerror local echo set\n"); + return false; + } + /*reset factory settings*/ + if(!(_parser.send("AT&F") && _parser.recv("OK"))) + { + printf("\r\nerror AT&F\n"); + return false; + } + + /*set idle mode (0->idle, 1->STA,3->miniAP, 2->IBSS)*/ + if(!(_parser.send("AT+S.SCFG=wifi_mode,%d\r", mode) && _parser.recv("OK"))) + { + printf("\r\nerror wifi mode set\n"); + return false; + } + + /* save current setting in flash */ + if(!(_parser.send("AT&W") && _parser.recv("OK"))) + { + printf("\r\nerror AT&W\n"); + return false; + } + + /*reset again and send AT command and check for result (AT->OK)*/ + reset(); + + return true; +} + +bool SPWFSA01::hw_reset(void) +{ + /* reset the pin PC12 */ + _reset.write(0); + wait_ms(200); + _reset.write(1); + wait_ms(100); + return 1; +} + +bool SPWFSA01::reset(void) +{ + if(!_parser.send("AT+CFUN=1")) return false; + while(1) { + if (_parser.recv("+WIND:32:WiFi Hardware Started")) { + return true; + } + } +} + +void SPWFSA01::waitSPWFReady(void) +{ + //wait_ms(200); + while(1) + if(_parser.send("AT") && _parser.recv("OK")) + //till we get OK from AT command + //printf("\r\nwaiting for reset to complete..\n"); + return; + +} + +/* Security Mode + None = 0, + WEP = 1, + WPA_Personal = 2, +*/ +bool SPWFSA01::connect(const char *ap, const char *passPhrase, int securityMode) +{ + uint32_t n1, n2, n3, n4; + + //AT+S.SCFG=wifi_wpa_psk_text,%s\r + if(!(_parser.send("AT+S.SCFG=wifi_wpa_psk_text,%s", passPhrase) && _parser.recv("OK"))) + { + printf("\r\nerror pass set\n"); + return false; + } + //AT+S.SSIDTXT=%s\r + if(!(_parser.send("AT+S.SSIDTXT=%s", ap) && _parser.recv("OK"))) + { + printf("\r\nerror ssid set\n"); + return false; + } + //AT+S.SCFG=wifi_priv_mode,%d\r + if(!(_parser.send("AT+S.SCFG=wifi_priv_mode,%d", securityMode) && _parser.recv("OK"))) + { + printf("\r\nerror security mode set\n"); + return false; + } + //"AT+S.SCFG=wifi_mode,%d\r" + /*set idle mode (0->idle, 1->STA,3->miniAP, 2->IBSS)*/ + if(!(_parser.send("AT+S.SCFG=wifi_mode,%d\r", 1) && _parser.recv("OK"))) + { + printf("\r\nerror wifi mode set\n"); + return false; + } + //AT&W + /* save current setting in flash */ + if(!(_parser.send("AT&W") && _parser.recv("OK"))) + { + printf("\r\nerror AT&W\n"); + return false; + } + //reset module + reset(); + + while(1) + if((_parser.recv("+WIND:24:WiFi Up:%u.%u.%u.%u",&n1, &n2, &n3, &n4))) + //if((_parser.recv("+WIND:24:WiFi Up:%[^\\r]",_ip_buffer))) + { + break; + } + + printf("\r\nip address:%u.%u.%u.%u\n",n1, n2, n3, n4); + + return true; +} + +bool SPWFSA01::disconnect(void) +{ + //"AT+S.SCFG=wifi_mode,%d\r" + /*set idle mode (0->idle, 1->STA,3->miniAP, 2->IBSS)*/ + if(!(_parser.send("AT+S.SCFG=wifi_mode,%d\r", 0) && _parser.recv("OK"))) + { + printf("\r\nerror wifi mode set\n"); + return false; + } + //AT&W + /* save current setting in flash */ + if(!(_parser.send("AT&W") && _parser.recv("OK"))) + { + printf("\r\nerror AT&W\n"); + return false; + } + //reset module + reset(); + return true; +} + +bool SPWFSA01::dhcp(bool enabled, int mode) +{ + //only 3 valid modes + if(mode < 0 || mode > 2) { + return false; + } + + return _parser.send("AT+CWDHCP=%d,%d", enabled?1:0, mode) + && _parser.recv("OK"); +} + + +const char *SPWFSA01::getIPAddress(void) +{ + uint32_t n1, n2, n3, n4; + + if (!(_parser.send("AT+S.STS=ip_ipaddr") + && _parser.recv("ip_ipaddr = %u.%u.%u.%u", &n1, &n2, &n3, &n4) + && _parser.recv("OK"))) { + printf("\r\ngetIPAddress error\n"); + return 0; + } + printf("\r\nip address:%u.%u.%u.%u\n",n1, n2, n3, n4); + sprintf((char*)_ip_buffer,"%u.%u.%u.%u", n1, n2, n3, n4); + + return _ip_buffer; +} + +const char *SPWFSA01::getMACAddress(void) +{ + if (!(_parser.send("AT+CIFSR") + && _parser.recv("+CIFSR:STAMAC,\"%[^\"]\"", _mac_buffer) + && _parser.recv("OK"))) { + return 0; + } + + return _mac_buffer; +} + +bool SPWFSA01::isConnected(void) +{ + return getIPAddress() != 0; +} + +bool SPWFSA01::open(const char *type, int id, const char* addr, int port) +{ + //IDs only 0-4 + if(id > 4) { + return false; + } + + return _parser.send("AT+CIPSTART=%d,\"%s\",\"%s\",%d", id, type, addr, port) + && _parser.recv("OK"); +} + +bool SPWFSA01::send(int id, const void *data, uint32_t amount) +{ + //May take a second try if device is busy + for (unsigned i = 0; i < 2; i++) { + if (_parser.send("AT+CIPSEND=%d,%d", id, amount) + && _parser.recv(">") + && _parser.write((char*)data, (int)amount) >= 0) { + return true; + } + } + + return false; +} + +int32_t SPWFSA01::recv(int id, void *data, uint32_t amount) +{ + uint32_t recv_amount; + int recv_id; + + if (!(_parser.recv("+IPD,%d,%d:", &recv_id, &recv_amount) + && recv_id == id + && recv_amount <= amount + && _parser.read((char*)data, recv_amount) + && _parser.recv("OK"))) { + return -1; + } + + return recv_amount; +} + +bool SPWFSA01::close(int id) +{ + //May take a second try if device is busy + for (unsigned i = 0; i < 2; i++) { + if (_parser.send("AT+CIPCLOSE=%d", id) + && _parser.recv("OK")) { + return true; + } + } + + return false; +} + +void SPWFSA01::setTimeout(uint32_t timeout_ms) +{ + _parser.setTimeout(timeout_ms); +} + +bool SPWFSA01::readable() +{ + return _serial.readable(); +} + +bool SPWFSA01::writeable() +{ + return _serial.writeable(); +}