takashi kadono
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Nucleo_446
Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466
mbed-os/drivers/RawSerial.cpp@0:8fdf9a60065b, 2018-10-10 (annotated)
- Committer:
- kadonotakashi
- Date:
- Wed Oct 10 00:33:53 2018 +0000
- Revision:
- 0:8fdf9a60065b
how to make mbed librry
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kadonotakashi | 0:8fdf9a60065b | 1 | /* mbed Microcontroller Library |
kadonotakashi | 0:8fdf9a60065b | 2 | * Copyright (c) 2006-2013 ARM Limited |
kadonotakashi | 0:8fdf9a60065b | 3 | * |
kadonotakashi | 0:8fdf9a60065b | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
kadonotakashi | 0:8fdf9a60065b | 5 | * you may not use this file except in compliance with the License. |
kadonotakashi | 0:8fdf9a60065b | 6 | * You may obtain a copy of the License at |
kadonotakashi | 0:8fdf9a60065b | 7 | * |
kadonotakashi | 0:8fdf9a60065b | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
kadonotakashi | 0:8fdf9a60065b | 9 | * |
kadonotakashi | 0:8fdf9a60065b | 10 | * Unless required by applicable law or agreed to in writing, software |
kadonotakashi | 0:8fdf9a60065b | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
kadonotakashi | 0:8fdf9a60065b | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
kadonotakashi | 0:8fdf9a60065b | 13 | * See the License for the specific language governing permissions and |
kadonotakashi | 0:8fdf9a60065b | 14 | * limitations under the License. |
kadonotakashi | 0:8fdf9a60065b | 15 | */ |
kadonotakashi | 0:8fdf9a60065b | 16 | #include "drivers/RawSerial.h" |
kadonotakashi | 0:8fdf9a60065b | 17 | #include "platform/mbed_wait_api.h" |
kadonotakashi | 0:8fdf9a60065b | 18 | #include <stdio.h> |
kadonotakashi | 0:8fdf9a60065b | 19 | #include <cstdarg> |
kadonotakashi | 0:8fdf9a60065b | 20 | |
kadonotakashi | 0:8fdf9a60065b | 21 | |
kadonotakashi | 0:8fdf9a60065b | 22 | #if DEVICE_SERIAL |
kadonotakashi | 0:8fdf9a60065b | 23 | |
kadonotakashi | 0:8fdf9a60065b | 24 | #define STRING_STACK_LIMIT 120 |
kadonotakashi | 0:8fdf9a60065b | 25 | |
kadonotakashi | 0:8fdf9a60065b | 26 | namespace mbed { |
kadonotakashi | 0:8fdf9a60065b | 27 | |
kadonotakashi | 0:8fdf9a60065b | 28 | RawSerial::RawSerial(PinName tx, PinName rx, int baud) : SerialBase(tx, rx, baud) |
kadonotakashi | 0:8fdf9a60065b | 29 | { |
kadonotakashi | 0:8fdf9a60065b | 30 | // No lock needed in the constructor |
kadonotakashi | 0:8fdf9a60065b | 31 | } |
kadonotakashi | 0:8fdf9a60065b | 32 | |
kadonotakashi | 0:8fdf9a60065b | 33 | int RawSerial::getc() |
kadonotakashi | 0:8fdf9a60065b | 34 | { |
kadonotakashi | 0:8fdf9a60065b | 35 | lock(); |
kadonotakashi | 0:8fdf9a60065b | 36 | int ret = _base_getc(); |
kadonotakashi | 0:8fdf9a60065b | 37 | unlock(); |
kadonotakashi | 0:8fdf9a60065b | 38 | return ret; |
kadonotakashi | 0:8fdf9a60065b | 39 | } |
kadonotakashi | 0:8fdf9a60065b | 40 | |
kadonotakashi | 0:8fdf9a60065b | 41 | int RawSerial::putc(int c) |
kadonotakashi | 0:8fdf9a60065b | 42 | { |
kadonotakashi | 0:8fdf9a60065b | 43 | lock(); |
kadonotakashi | 0:8fdf9a60065b | 44 | int ret = _base_putc(c); |
kadonotakashi | 0:8fdf9a60065b | 45 | unlock(); |
kadonotakashi | 0:8fdf9a60065b | 46 | return ret; |
kadonotakashi | 0:8fdf9a60065b | 47 | } |
kadonotakashi | 0:8fdf9a60065b | 48 | |
kadonotakashi | 0:8fdf9a60065b | 49 | int RawSerial::puts(const char *str) |
kadonotakashi | 0:8fdf9a60065b | 50 | { |
kadonotakashi | 0:8fdf9a60065b | 51 | lock(); |
kadonotakashi | 0:8fdf9a60065b | 52 | while (*str) { |
kadonotakashi | 0:8fdf9a60065b | 53 | putc(*str ++); |
kadonotakashi | 0:8fdf9a60065b | 54 | } |
kadonotakashi | 0:8fdf9a60065b | 55 | unlock(); |
kadonotakashi | 0:8fdf9a60065b | 56 | return 0; |
kadonotakashi | 0:8fdf9a60065b | 57 | } |
kadonotakashi | 0:8fdf9a60065b | 58 | |
kadonotakashi | 0:8fdf9a60065b | 59 | // Experimental support for printf in RawSerial. No Stream inheritance |
kadonotakashi | 0:8fdf9a60065b | 60 | // means we can't call printf() directly, so we use sprintf() instead. |
kadonotakashi | 0:8fdf9a60065b | 61 | // We only call malloc() for the sprintf() buffer if the buffer |
kadonotakashi | 0:8fdf9a60065b | 62 | // length is above a certain threshold, otherwise we use just the stack. |
kadonotakashi | 0:8fdf9a60065b | 63 | int RawSerial::printf(const char *format, ...) |
kadonotakashi | 0:8fdf9a60065b | 64 | { |
kadonotakashi | 0:8fdf9a60065b | 65 | lock(); |
kadonotakashi | 0:8fdf9a60065b | 66 | std::va_list arg; |
kadonotakashi | 0:8fdf9a60065b | 67 | va_start(arg, format); |
kadonotakashi | 0:8fdf9a60065b | 68 | // ARMCC microlib does not properly handle a size of 0. |
kadonotakashi | 0:8fdf9a60065b | 69 | // As a workaround supply a dummy buffer with a size of 1. |
kadonotakashi | 0:8fdf9a60065b | 70 | char dummy_buf[1]; |
kadonotakashi | 0:8fdf9a60065b | 71 | int len = vsnprintf(dummy_buf, sizeof(dummy_buf), format, arg); |
kadonotakashi | 0:8fdf9a60065b | 72 | if (len < STRING_STACK_LIMIT) { |
kadonotakashi | 0:8fdf9a60065b | 73 | char temp[STRING_STACK_LIMIT]; |
kadonotakashi | 0:8fdf9a60065b | 74 | vsprintf(temp, format, arg); |
kadonotakashi | 0:8fdf9a60065b | 75 | puts(temp); |
kadonotakashi | 0:8fdf9a60065b | 76 | } else { |
kadonotakashi | 0:8fdf9a60065b | 77 | char *temp = new char[len + 1]; |
kadonotakashi | 0:8fdf9a60065b | 78 | vsprintf(temp, format, arg); |
kadonotakashi | 0:8fdf9a60065b | 79 | puts(temp); |
kadonotakashi | 0:8fdf9a60065b | 80 | delete[] temp; |
kadonotakashi | 0:8fdf9a60065b | 81 | } |
kadonotakashi | 0:8fdf9a60065b | 82 | va_end(arg); |
kadonotakashi | 0:8fdf9a60065b | 83 | unlock(); |
kadonotakashi | 0:8fdf9a60065b | 84 | return len; |
kadonotakashi | 0:8fdf9a60065b | 85 | } |
kadonotakashi | 0:8fdf9a60065b | 86 | |
kadonotakashi | 0:8fdf9a60065b | 87 | /** Acquire exclusive access to this serial port |
kadonotakashi | 0:8fdf9a60065b | 88 | */ |
kadonotakashi | 0:8fdf9a60065b | 89 | void RawSerial::lock() |
kadonotakashi | 0:8fdf9a60065b | 90 | { |
kadonotakashi | 0:8fdf9a60065b | 91 | // No lock used - external synchronization required |
kadonotakashi | 0:8fdf9a60065b | 92 | } |
kadonotakashi | 0:8fdf9a60065b | 93 | |
kadonotakashi | 0:8fdf9a60065b | 94 | /** Release exclusive access to this serial port |
kadonotakashi | 0:8fdf9a60065b | 95 | */ |
kadonotakashi | 0:8fdf9a60065b | 96 | void RawSerial::unlock() |
kadonotakashi | 0:8fdf9a60065b | 97 | { |
kadonotakashi | 0:8fdf9a60065b | 98 | // No lock used - external synchronization required |
kadonotakashi | 0:8fdf9a60065b | 99 | } |
kadonotakashi | 0:8fdf9a60065b | 100 | |
kadonotakashi | 0:8fdf9a60065b | 101 | } // namespace mbed |
kadonotakashi | 0:8fdf9a60065b | 102 | |
kadonotakashi | 0:8fdf9a60065b | 103 | #endif |