Anthony Phillips / Mbed OS ATT_AWS_IoT_demo

AWS IoT demonstration using the Avnet Shield (AT&T LTE) and the FRDM-K64F target board.

Dependencies:   K64F_FATFileSystem

Fork of mbed-os-example-tls-tls-client by mbed-os-examples

WNCInterface/WncControllerK64F/MODSERIAL/GETC.cpp@25:91d771247ac8, 2016-12-19 (annotated)

Committer:
ampembeng
Date:
Mon Dec 19 20:52:28 2016 +0000
Revision:
25:91d771247ac8
Parent:
15:6f2798e45099 
Updated the look/feel of the Python GUI to match the AT&T locker demo S3 page.  Added "assets" folder to support this.  Updated the README.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ampembeng 15:6f2798e45099 1 /*
ampembeng 15:6f2798e45099 2 Copyright (c) 2010 Andy Kirkham
ampembeng 15:6f2798e45099 3
ampembeng 15:6f2798e45099 4 Permission is hereby granted, free of charge, to any person obtaining a copy
ampembeng 15:6f2798e45099 5 of this software and associated documentation files (the "Software"), to deal
ampembeng 15:6f2798e45099 6 in the Software without restriction, including without limitation the rights
ampembeng 15:6f2798e45099 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
ampembeng 15:6f2798e45099 8 copies of the Software, and to permit persons to whom the Software is
ampembeng 15:6f2798e45099 9 furnished to do so, subject to the following conditions:
ampembeng 15:6f2798e45099 10
ampembeng 15:6f2798e45099 11 The above copyright notice and this permission notice shall be included in
ampembeng 15:6f2798e45099 12 all copies or substantial portions of the Software.
ampembeng 15:6f2798e45099 13
ampembeng 15:6f2798e45099 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
ampembeng 15:6f2798e45099 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ampembeng 15:6f2798e45099 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
ampembeng 15:6f2798e45099 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
ampembeng 15:6f2798e45099 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ampembeng 15:6f2798e45099 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
ampembeng 15:6f2798e45099 20 THE SOFTWARE.
ampembeng 15:6f2798e45099 21 */
ampembeng 15:6f2798e45099 22
ampembeng 15:6f2798e45099 23 #include "MODSERIAL.h"
ampembeng 15:6f2798e45099 24 #include "MACROS.h"
ampembeng 15:6f2798e45099 25
ampembeng 15:6f2798e45099 26 namespace AjK {
ampembeng 15:6f2798e45099 27
ampembeng 15:6f2798e45099 28 int
ampembeng 15:6f2798e45099 29 MODSERIAL::__getc(bool block)
ampembeng 15:6f2798e45099 30 {
ampembeng 15:6f2798e45099 31 // If no buffer is in use fall back to standard RX FIFO usage.
ampembeng 15:6f2798e45099 32 // Note, we must block in this case and ignore bool "block"
ampembeng 15:6f2798e45099 33 // so as to maintain compat with Mbed Serial.
ampembeng 15:6f2798e45099 34 if (buffer_size[RxIrq] == 0 || buffer[RxIrq] == (char *)NULL) {
ampembeng 15:6f2798e45099 35 while(! MODSERIAL_READABLE ) ;
ampembeng 15:6f2798e45099 36 return (int)(MODSERIAL_READ_REG & 0xFF);
ampembeng 15:6f2798e45099 37 }
ampembeng 15:6f2798e45099 38
ampembeng 15:6f2798e45099 39 if (block) { while ( MODSERIAL_RX_BUFFER_EMPTY ) ; } // Blocks.
ampembeng 15:6f2798e45099 40 else if ( MODSERIAL_RX_BUFFER_EMPTY ) return -1;
ampembeng 15:6f2798e45099 41
ampembeng 15:6f2798e45099 42 int c = buffer[RxIrq][buffer_out[RxIrq]];
ampembeng 15:6f2798e45099 43 buffer_out[RxIrq]++;
ampembeng 15:6f2798e45099 44 if (buffer_out[RxIrq] >= buffer_size[RxIrq]) {
ampembeng 15:6f2798e45099 45 buffer_out[RxIrq] = 0;
ampembeng 15:6f2798e45099 46 }
ampembeng 15:6f2798e45099 47
ampembeng 15:6f2798e45099 48 // If we have made space in the RX Buffer then copy over
ampembeng 15:6f2798e45099 49 // any characters in the RX FIFO that my reside there.
ampembeng 15:6f2798e45099 50 // Temporarily disable the RX IRQ so that we do not re-enter
ampembeng 15:6f2798e45099 51 // it under interrupts.
ampembeng 15:6f2798e45099 52 if ( ! MODSERIAL_RX_BUFFER_FULL ) {
ampembeng 15:6f2798e45099 53 uint32_t irq_reg = MODSERIAL_IRQ_REG;
ampembeng 15:6f2798e45099 54 DISABLE_RX_IRQ;
ampembeng 15:6f2798e45099 55 isr_rx();
ampembeng 15:6f2798e45099 56 MODSERIAL_IRQ_REG = irq_reg;
ampembeng 15:6f2798e45099 57 }
ampembeng 15:6f2798e45099 58
ampembeng 15:6f2798e45099 59 __disable_irq();
ampembeng 15:6f2798e45099 60 buffer_count[RxIrq]--;
ampembeng 15:6f2798e45099 61 __enable_irq();
ampembeng 15:6f2798e45099 62 return c;
ampembeng 15:6f2798e45099 63 }
ampembeng 15:6f2798e45099 64
ampembeng 15:6f2798e45099 65 }; // namespace AjK ends
ampembeng 15:6f2798e45099 66