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4cff3ded | 1 | /* mbed Microcontroller Library - Serial\r |
8fcce42e | 2 | * Copyright (c) 2007-2011 ARM Limited. All rights reserved.\r |
4cff3ded AW |
3 | */ \r |
4 | \r | |
5 | #ifndef MBED_SERIAL_H\r | |
6 | #define MBED_SERIAL_H\r | |
7 | \r | |
8fcce42e AG |
8 | #include "device.h"\r |
9 | \r | |
10 | #if DEVICE_SERIAL\r | |
11 | \r | |
4cff3ded AW |
12 | #include "platform.h"\r |
13 | #include "PinNames.h"\r | |
14 | #include "PeripheralNames.h"\r | |
15 | #include "Stream.h"\r | |
16 | #include "FunctionPointer.h"\r | |
17 | \r | |
18 | namespace mbed {\r | |
19 | \r | |
20 | /* Class: Serial\r | |
21 | * A serial port (UART) for communication with other serial devices\r | |
22 | *\r | |
8fcce42e AG |
23 | * Can be used for Full Duplex communication, or Simplex by specifying \r |
24 | * one pin as NC (Not Connected)\r | |
25 | *\r | |
4cff3ded AW |
26 | * Example:\r |
27 | * > // Print "Hello World" to the PC\r | |
28 | * >\r | |
29 | * > #include "mbed.h"\r | |
30 | * >\r | |
31 | * > Serial pc(USBTX, USBRX);\r | |
32 | * >\r | |
33 | * > int main() {\r | |
34 | * > pc.printf("Hello World\n");\r | |
35 | * > }\r | |
36 | */\r | |
37 | class Serial : public Stream {\r | |
38 | \r | |
39 | public:\r | |
40 | \r | |
41 | /* Constructor: Serial\r | |
42 | * Create a Serial port, connected to the specified transmit and receive pins\r | |
43 | *\r | |
44 | * Variables:\r | |
45 | * tx - Transmit pin \r | |
46 | * rx - Receive pin\r | |
47 | *\r | |
48 | * Note: Either tx or rx may be specified as NC if unused\r | |
49 | */\r | |
50 | Serial(PinName tx, PinName rx, const char *name = NULL);\r | |
51 | \r | |
52 | /* Function: baud\r | |
53 | * Set the baud rate of the serial port\r | |
54 | * \r | |
55 | * Variables:\r | |
56 | * baudrate - The baudrate of the serial port (default = 9600).\r | |
57 | */\r | |
58 | void baud(int baudrate);\r | |
59 | \r | |
60 | enum Parity {\r | |
61 | None = 0\r | |
62 | , Odd\r | |
63 | , Even\r | |
64 | , Forced1 \r | |
65 | , Forced0\r | |
66 | };\r | |
67 | \r | |
68 | enum IrqType {\r | |
69 | RxIrq = 0\r | |
70 | , TxIrq\r | |
71 | };\r | |
72 | \r | |
73 | /* Function: format\r | |
74 | * Set the transmission format used by the Serial port\r | |
75 | *\r | |
76 | * Variables:\r | |
77 | * bits - The number of bits in a word (5-8; default = 8)\r | |
78 | * parity - The parity used (Serial::None, Serial::Odd, Serial::Even, Serial::Forced1, Serial::Forced0; default = Serial::None)\r | |
79 | * stop - The number of stop bits (1 or 2; default = 1)\r | |
80 | */\r | |
81 | void format(int bits = 8, Parity parity = Serial::None, int stop_bits = 1); \r | |
82 | \r | |
83 | #if 0 // Inhereted from Stream, for documentation only\r | |
84 | \r | |
85 | /* Function: putc\r | |
86 | * Write a character\r | |
87 | *\r | |
88 | * Variables:\r | |
89 | * c - The character to write to the serial port\r | |
90 | */\r | |
91 | int putc(int c);\r | |
92 | \r | |
93 | /* Function: getc\r | |
94 | * Read a character\r | |
95 | *\r | |
8fcce42e AG |
96 | * Reads a character from the serial port. This will block until \r |
97 | * a character is available. To see if a character is available, \r | |
98 | * see <readable>\r | |
99 | *\r | |
4cff3ded AW |
100 | * Variables:\r |
101 | * returns - The character read from the serial port\r | |
102 | */\r | |
103 | int getc();\r | |
104 | \r | |
105 | /* Function: printf\r | |
106 | * Write a formated string\r | |
107 | *\r | |
108 | * Variables:\r | |
109 | * format - A printf-style format string, followed by the \r | |
110 | * variables to use in formating the string.\r | |
111 | */\r | |
112 | int printf(const char* format, ...);\r | |
113 | \r | |
114 | /* Function: scanf\r | |
115 | * Read a formated string \r | |
116 | *\r | |
117 | * Variables:\r | |
118 | * format - A scanf-style format string,\r | |
119 | * followed by the pointers to variables to store the results. \r | |
120 | */\r | |
121 | int scanf(const char* format, ...);\r | |
122 | \r | |
123 | #endif\r | |
124 | \r | |
125 | /* Function: readable\r | |
126 | * Determine if there is a character available to read\r | |
127 | *\r | |
128 | * Variables:\r | |
129 | * returns - 1 if there is a character available to read, else 0\r | |
130 | */\r | |
131 | int readable();\r | |
132 | \r | |
133 | /* Function: writeable\r | |
134 | * Determine if there is space available to write a character\r | |
135 | * \r | |
136 | * Variables:\r | |
137 | * returns - 1 if there is space to write a character, else 0\r | |
138 | */\r | |
139 | int writeable();\r | |
140 | \r | |
141 | /* Function: attach\r | |
142 | * Attach a function to call whenever a serial interrupt is generated\r | |
143 | *\r | |
144 | * Variables:\r | |
145 | * fptr - A pointer to a void function, or 0 to set as none\r | |
146 | * type - Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty)\r | |
147 | */\r | |
148 | void attach(void (*fptr)(void), IrqType type = RxIrq);\r | |
149 | \r | |
150 | /* Function: attach\r | |
151 | * Attach a member function to call whenever a serial interrupt is generated\r | |
152 | * \r | |
153 | * Variables:\r | |
154 | * tptr - pointer to the object to call the member function on\r | |
155 | * mptr - pointer to the member function to be called\r | |
156 | * type - Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty)\r | |
157 | */\r | |
158 | template<typename T>\r | |
159 | void attach(T* tptr, void (T::*mptr)(void), IrqType type = RxIrq) {\r | |
160 | if((mptr != NULL) && (tptr != NULL)) {\r | |
161 | _irq[type].attach(tptr, mptr);\r | |
162 | setup_interrupt(type);\r | |
163 | }\r | |
164 | }\r | |
165 | \r | |
166 | #ifdef MBED_RPC\r | |
167 | virtual const struct rpc_method *get_rpc_methods();\r | |
168 | static struct rpc_class *get_rpc_class();\r | |
169 | #endif\r | |
170 | \r | |
171 | protected:\r | |
172 | \r | |
173 | void setup_interrupt(IrqType type);\r | |
174 | void remove_interrupt(IrqType type);\r | |
175 | \r | |
176 | virtual int _getc();\r | |
177 | virtual int _putc(int c);\r | |
178 | \r | |
179 | UARTName _uart;\r | |
180 | FunctionPointer _irq[2];\r | |
181 | int _uidx;\r | |
182 | \r | |
183 | };\r | |
184 | \r | |
185 | } // namespace mbed\r | |
186 | \r | |
187 | #endif\r | |
188 | \r | |
8fcce42e | 189 | #endif\r |