Host library for controlling a WiConnect enabled Wi-Fi module.
Dependents: wiconnect-ota_example wiconnect-web_setup_example wiconnect-test-console wiconnect-tcp_server_example ... more
sdk/mbed/WiconnectSerial.cpp@0:ea85c4bb5e1f, 2014-08-11 (annotated)
- Committer:
- dan_ackme
- Date:
- Mon Aug 11 09:58:24 2014 +0000
- Revision:
- 0:ea85c4bb5e1f
- Child:
- 1:6ec9998427ad
initial check-in
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
dan_ackme | 0:ea85c4bb5e1f | 1 | /* |
dan_ackme | 0:ea85c4bb5e1f | 2 | * Copyright 2014, ACKme Networks |
dan_ackme | 0:ea85c4bb5e1f | 3 | * All Rights Reserved. |
dan_ackme | 0:ea85c4bb5e1f | 4 | * |
dan_ackme | 0:ea85c4bb5e1f | 5 | * This is UNPUBLISHED PROPRIETARY SOURCE CODE of ACKme Networks; |
dan_ackme | 0:ea85c4bb5e1f | 6 | * the contents of this file may not be disclosed to third parties, copied |
dan_ackme | 0:ea85c4bb5e1f | 7 | * or duplicated in any form, in whole or in part, without the prior |
dan_ackme | 0:ea85c4bb5e1f | 8 | * written permission of ACKme Networks. |
dan_ackme | 0:ea85c4bb5e1f | 9 | */ |
dan_ackme | 0:ea85c4bb5e1f | 10 | |
dan_ackme | 0:ea85c4bb5e1f | 11 | #include <assert.h> |
dan_ackme | 0:ea85c4bb5e1f | 12 | |
dan_ackme | 0:ea85c4bb5e1f | 13 | #include "Wiconnect.h" |
dan_ackme | 0:ea85c4bb5e1f | 14 | #include "internal/common.h" |
dan_ackme | 0:ea85c4bb5e1f | 15 | |
dan_ackme | 0:ea85c4bb5e1f | 16 | #ifndef WICONNECT_SERIAL_RX_BUFFER |
dan_ackme | 0:ea85c4bb5e1f | 17 | #error WICONNECT_SERIAL_RX_BUFFER NOT defined NOT currently supported |
dan_ackme | 0:ea85c4bb5e1f | 18 | #endif |
dan_ackme | 0:ea85c4bb5e1f | 19 | |
dan_ackme | 0:ea85c4bb5e1f | 20 | |
dan_ackme | 0:ea85c4bb5e1f | 21 | |
dan_ackme | 0:ea85c4bb5e1f | 22 | |
dan_ackme | 0:ea85c4bb5e1f | 23 | typedef struct |
dan_ackme | 0:ea85c4bb5e1f | 24 | { |
dan_ackme | 0:ea85c4bb5e1f | 25 | uint16_t size; |
dan_ackme | 0:ea85c4bb5e1f | 26 | uint8_t *start, *end; |
dan_ackme | 0:ea85c4bb5e1f | 27 | volatile uint8_t *head; |
dan_ackme | 0:ea85c4bb5e1f | 28 | volatile uint8_t *tail; |
dan_ackme | 0:ea85c4bb5e1f | 29 | volatile uint16_t count; |
dan_ackme | 0:ea85c4bb5e1f | 30 | } SerialRxBuffer; |
dan_ackme | 0:ea85c4bb5e1f | 31 | |
dan_ackme | 0:ea85c4bb5e1f | 32 | |
dan_ackme | 0:ea85c4bb5e1f | 33 | /*************************************************************************************************/ |
dan_ackme | 0:ea85c4bb5e1f | 34 | WiconnectSerial::WiconnectSerial(const SerialConfig &config, Wiconnect *wiconnect) : RawSerial(config.tx, config.rx) |
dan_ackme | 0:ea85c4bb5e1f | 35 | { |
dan_ackme | 0:ea85c4bb5e1f | 36 | ct_assert(sizeof(ringBuffer) >= sizeof(SerialRxBuffer)); |
dan_ackme | 0:ea85c4bb5e1f | 37 | |
dan_ackme | 0:ea85c4bb5e1f | 38 | baud(config.baud); |
dan_ackme | 0:ea85c4bb5e1f | 39 | |
dan_ackme | 0:ea85c4bb5e1f | 40 | SerialRxBuffer *rxBuffer = (SerialRxBuffer*)ringBuffer; |
dan_ackme | 0:ea85c4bb5e1f | 41 | memset(rxBuffer, 0, sizeof(SerialRxBuffer)); |
dan_ackme | 0:ea85c4bb5e1f | 42 | bufferAlloc = false; |
dan_ackme | 0:ea85c4bb5e1f | 43 | if(config.serialRxBufferSize > 0) |
dan_ackme | 0:ea85c4bb5e1f | 44 | { |
dan_ackme | 0:ea85c4bb5e1f | 45 | if(config.serialRxBuffer != NULL) |
dan_ackme | 0:ea85c4bb5e1f | 46 | { |
dan_ackme | 0:ea85c4bb5e1f | 47 | rxBuffer->head = (uint8_t*)config.serialRxBuffer; |
dan_ackme | 0:ea85c4bb5e1f | 48 | } |
dan_ackme | 0:ea85c4bb5e1f | 49 | #ifdef WICONNECT_ENABLE_MALLOC |
dan_ackme | 0:ea85c4bb5e1f | 50 | else |
dan_ackme | 0:ea85c4bb5e1f | 51 | { |
dan_ackme | 0:ea85c4bb5e1f | 52 | assert(wiconnect->_malloc != NULL); |
dan_ackme | 0:ea85c4bb5e1f | 53 | rxBuffer->start = (uint8_t*)wiconnect->_malloc(config.serialRxBufferSize); |
dan_ackme | 0:ea85c4bb5e1f | 54 | bufferAlloc = true; |
dan_ackme | 0:ea85c4bb5e1f | 55 | } |
dan_ackme | 0:ea85c4bb5e1f | 56 | #endif |
dan_ackme | 0:ea85c4bb5e1f | 57 | rxBuffer->head = rxBuffer->tail = (volatile uint8_t*)rxBuffer->start; |
dan_ackme | 0:ea85c4bb5e1f | 58 | rxBuffer->end = (uint8_t*)rxBuffer->head + config.serialRxBufferSize; |
dan_ackme | 0:ea85c4bb5e1f | 59 | rxBuffer->size = config.serialRxBufferSize; |
dan_ackme | 0:ea85c4bb5e1f | 60 | attach(this, &WiconnectSerial::rxIrqHandler, SerialBase::RxIrq); |
dan_ackme | 0:ea85c4bb5e1f | 61 | } |
dan_ackme | 0:ea85c4bb5e1f | 62 | } |
dan_ackme | 0:ea85c4bb5e1f | 63 | |
dan_ackme | 0:ea85c4bb5e1f | 64 | /*************************************************************************************************/ |
dan_ackme | 0:ea85c4bb5e1f | 65 | WiconnectSerial::~WiconnectSerial() |
dan_ackme | 0:ea85c4bb5e1f | 66 | { |
dan_ackme | 0:ea85c4bb5e1f | 67 | #ifdef WICONNECT_ENABLE_MALLOC |
dan_ackme | 0:ea85c4bb5e1f | 68 | if(bufferAlloc) |
dan_ackme | 0:ea85c4bb5e1f | 69 | { |
dan_ackme | 0:ea85c4bb5e1f | 70 | SerialRxBuffer *rxBuffer = (SerialRxBuffer*)ringBuffer; |
dan_ackme | 0:ea85c4bb5e1f | 71 | Wiconnect::getInstance()->_free(rxBuffer->start); |
dan_ackme | 0:ea85c4bb5e1f | 72 | } |
dan_ackme | 0:ea85c4bb5e1f | 73 | #endif |
dan_ackme | 0:ea85c4bb5e1f | 74 | } |
dan_ackme | 0:ea85c4bb5e1f | 75 | |
dan_ackme | 0:ea85c4bb5e1f | 76 | /*************************************************************************************************/ |
dan_ackme | 0:ea85c4bb5e1f | 77 | void WiconnectSerial::flush(void) |
dan_ackme | 0:ea85c4bb5e1f | 78 | { |
dan_ackme | 0:ea85c4bb5e1f | 79 | while (readable()) |
dan_ackme | 0:ea85c4bb5e1f | 80 | { |
dan_ackme | 0:ea85c4bb5e1f | 81 | int c = getc(); |
dan_ackme | 0:ea85c4bb5e1f | 82 | } |
dan_ackme | 0:ea85c4bb5e1f | 83 | |
dan_ackme | 0:ea85c4bb5e1f | 84 | SerialRxBuffer *rxBuffer = (SerialRxBuffer*)ringBuffer; |
dan_ackme | 0:ea85c4bb5e1f | 85 | rxBuffer->tail = rxBuffer->head = rxBuffer->start; |
dan_ackme | 0:ea85c4bb5e1f | 86 | rxBuffer->count = 0; |
dan_ackme | 0:ea85c4bb5e1f | 87 | } |
dan_ackme | 0:ea85c4bb5e1f | 88 | |
dan_ackme | 0:ea85c4bb5e1f | 89 | /*************************************************************************************************/ |
dan_ackme | 0:ea85c4bb5e1f | 90 | int WiconnectSerial::write(const void *data, int bytesToWrite, int timeoutMs) |
dan_ackme | 0:ea85c4bb5e1f | 91 | { |
dan_ackme | 0:ea85c4bb5e1f | 92 | uint8_t *ptr = (uint8_t*)data; |
dan_ackme | 0:ea85c4bb5e1f | 93 | int remaining = bytesToWrite; |
dan_ackme | 0:ea85c4bb5e1f | 94 | |
dan_ackme | 0:ea85c4bb5e1f | 95 | while(remaining > 0) |
dan_ackme | 0:ea85c4bb5e1f | 96 | { |
dan_ackme | 0:ea85c4bb5e1f | 97 | if(!writeable()) |
dan_ackme | 0:ea85c4bb5e1f | 98 | { |
dan_ackme | 0:ea85c4bb5e1f | 99 | timeoutTimer.reset(); |
dan_ackme | 0:ea85c4bb5e1f | 100 | while(!writeable()) |
dan_ackme | 0:ea85c4bb5e1f | 101 | { |
dan_ackme | 0:ea85c4bb5e1f | 102 | if(timeoutMs == 0) |
dan_ackme | 0:ea85c4bb5e1f | 103 | { |
dan_ackme | 0:ea85c4bb5e1f | 104 | if(timeoutTimer.readUs() >= 500) |
dan_ackme | 0:ea85c4bb5e1f | 105 | { |
dan_ackme | 0:ea85c4bb5e1f | 106 | goto exit; |
dan_ackme | 0:ea85c4bb5e1f | 107 | } |
dan_ackme | 0:ea85c4bb5e1f | 108 | } |
dan_ackme | 0:ea85c4bb5e1f | 109 | else |
dan_ackme | 0:ea85c4bb5e1f | 110 | { |
dan_ackme | 0:ea85c4bb5e1f | 111 | if(timeoutTimer.readUs() >= timeoutMs*1000) |
dan_ackme | 0:ea85c4bb5e1f | 112 | { |
dan_ackme | 0:ea85c4bb5e1f | 113 | goto exit; |
dan_ackme | 0:ea85c4bb5e1f | 114 | } |
dan_ackme | 0:ea85c4bb5e1f | 115 | } |
dan_ackme | 0:ea85c4bb5e1f | 116 | } |
dan_ackme | 0:ea85c4bb5e1f | 117 | } |
dan_ackme | 0:ea85c4bb5e1f | 118 | |
dan_ackme | 0:ea85c4bb5e1f | 119 | putc(*ptr); |
dan_ackme | 0:ea85c4bb5e1f | 120 | ++ptr; |
dan_ackme | 0:ea85c4bb5e1f | 121 | --remaining; |
dan_ackme | 0:ea85c4bb5e1f | 122 | } |
dan_ackme | 0:ea85c4bb5e1f | 123 | |
dan_ackme | 0:ea85c4bb5e1f | 124 | exit: |
dan_ackme | 0:ea85c4bb5e1f | 125 | return bytesToWrite - remaining; |
dan_ackme | 0:ea85c4bb5e1f | 126 | } |
dan_ackme | 0:ea85c4bb5e1f | 127 | |
dan_ackme | 0:ea85c4bb5e1f | 128 | /*************************************************************************************************/ |
dan_ackme | 0:ea85c4bb5e1f | 129 | int WiconnectSerial::read(void *data, int bytesToRead, int timeoutMs) |
dan_ackme | 0:ea85c4bb5e1f | 130 | { |
dan_ackme | 0:ea85c4bb5e1f | 131 | SerialRxBuffer *rxBuffer = (SerialRxBuffer*)ringBuffer; |
dan_ackme | 0:ea85c4bb5e1f | 132 | uint8_t *ptr = (uint8_t*)data; |
dan_ackme | 0:ea85c4bb5e1f | 133 | int remaining = bytesToRead; |
dan_ackme | 0:ea85c4bb5e1f | 134 | |
dan_ackme | 0:ea85c4bb5e1f | 135 | while(remaining > 0) |
dan_ackme | 0:ea85c4bb5e1f | 136 | { |
dan_ackme | 0:ea85c4bb5e1f | 137 | if(rxBuffer->count == 0) |
dan_ackme | 0:ea85c4bb5e1f | 138 | { |
dan_ackme | 0:ea85c4bb5e1f | 139 | if(timeoutMs == 0) |
dan_ackme | 0:ea85c4bb5e1f | 140 | { |
dan_ackme | 0:ea85c4bb5e1f | 141 | break; |
dan_ackme | 0:ea85c4bb5e1f | 142 | } |
dan_ackme | 0:ea85c4bb5e1f | 143 | else |
dan_ackme | 0:ea85c4bb5e1f | 144 | { |
dan_ackme | 0:ea85c4bb5e1f | 145 | timeoutTimer.reset(); |
dan_ackme | 0:ea85c4bb5e1f | 146 | while(rxBuffer->count == 0) |
dan_ackme | 0:ea85c4bb5e1f | 147 | { |
dan_ackme | 0:ea85c4bb5e1f | 148 | if(timeoutTimer.readUs() >= timeoutMs*1000) |
dan_ackme | 0:ea85c4bb5e1f | 149 | { |
dan_ackme | 0:ea85c4bb5e1f | 150 | goto exit; |
dan_ackme | 0:ea85c4bb5e1f | 151 | } |
dan_ackme | 0:ea85c4bb5e1f | 152 | } |
dan_ackme | 0:ea85c4bb5e1f | 153 | } |
dan_ackme | 0:ea85c4bb5e1f | 154 | } |
dan_ackme | 0:ea85c4bb5e1f | 155 | |
dan_ackme | 0:ea85c4bb5e1f | 156 | *ptr++ = *rxBuffer->tail++; |
dan_ackme | 0:ea85c4bb5e1f | 157 | --remaining; |
dan_ackme | 0:ea85c4bb5e1f | 158 | --rxBuffer->count; |
dan_ackme | 0:ea85c4bb5e1f | 159 | if(rxBuffer->tail >= rxBuffer->end) |
dan_ackme | 0:ea85c4bb5e1f | 160 | rxBuffer->tail = rxBuffer->start; |
dan_ackme | 0:ea85c4bb5e1f | 161 | } |
dan_ackme | 0:ea85c4bb5e1f | 162 | |
dan_ackme | 0:ea85c4bb5e1f | 163 | exit: |
dan_ackme | 0:ea85c4bb5e1f | 164 | return bytesToRead - remaining; |
dan_ackme | 0:ea85c4bb5e1f | 165 | } |
dan_ackme | 0:ea85c4bb5e1f | 166 | |
dan_ackme | 0:ea85c4bb5e1f | 167 | /*************************************************************************************************/ |
dan_ackme | 0:ea85c4bb5e1f | 168 | void WiconnectSerial::rxIrqHandler(void) |
dan_ackme | 0:ea85c4bb5e1f | 169 | { |
dan_ackme | 0:ea85c4bb5e1f | 170 | SerialRxBuffer *rxBuffer = (SerialRxBuffer*)ringBuffer; |
dan_ackme | 0:ea85c4bb5e1f | 171 | |
dan_ackme | 0:ea85c4bb5e1f | 172 | while (readable() && rxBuffer->count < rxBuffer->size) |
dan_ackme | 0:ea85c4bb5e1f | 173 | { |
dan_ackme | 0:ea85c4bb5e1f | 174 | *rxBuffer->head++ = (uint8_t)getc(); |
dan_ackme | 0:ea85c4bb5e1f | 175 | ++rxBuffer->count; |
dan_ackme | 0:ea85c4bb5e1f | 176 | if(rxBuffer->head >= rxBuffer->end) |
dan_ackme | 0:ea85c4bb5e1f | 177 | rxBuffer->head = rxBuffer->start; |
dan_ackme | 0:ea85c4bb5e1f | 178 | } |
dan_ackme | 0:ea85c4bb5e1f | 179 | } |
dan_ackme | 0:ea85c4bb5e1f | 180 |