Amanda Travieso / MODSERIAL1

Library Fork

Fork of MODSERIAL by Andy K

MODSERIAL.h@19:a158936322cc, 2011-04-21 (annotated)

Committer:
AjK
Date:
Thu Apr 21 09:39:50 2011 +0000
Revision:
19:a158936322cc
Parent:
18:21ef26402365
Child:
20:59c74aaedda2
1.18 See ChangeLog.c

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AjK 12:8c7394e2ae7f 1 /*
AjK 12:8c7394e2ae7f 2 Copyright (c) 2010 Andy Kirkham
AjK 12:8c7394e2ae7f 3
AjK 12:8c7394e2ae7f 4 Permission is hereby granted, free of charge, to any person obtaining a copy
AjK 12:8c7394e2ae7f 5 of this software and associated documentation files (the "Software"), to deal
AjK 12:8c7394e2ae7f 6 in the Software without restriction, including without limitation the rights
AjK 12:8c7394e2ae7f 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
AjK 12:8c7394e2ae7f 8 copies of the Software, and to permit persons to whom the Software is
AjK 12:8c7394e2ae7f 9 furnished to do so, subject to the following conditions:
AjK 12:8c7394e2ae7f 10
AjK 12:8c7394e2ae7f 11 The above copyright notice and this permission notice shall be included in
AjK 12:8c7394e2ae7f 12 all copies or substantial portions of the Software.
AjK 12:8c7394e2ae7f 13
AjK 12:8c7394e2ae7f 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
AjK 12:8c7394e2ae7f 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
AjK 12:8c7394e2ae7f 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AjK 12:8c7394e2ae7f 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
AjK 12:8c7394e2ae7f 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
AjK 12:8c7394e2ae7f 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
AjK 12:8c7394e2ae7f 20 THE SOFTWARE.
AjK 12:8c7394e2ae7f 21
AjK 12:8c7394e2ae7f 22 @file MODSERIAL.h
AjK 12:8c7394e2ae7f 23 @purpose Extends Serial to provide fully buffered IO
AjK 12:8c7394e2ae7f 24 @version see ChangeLog.c
AjK 12:8c7394e2ae7f 25 @date Nov 2010
AjK 12:8c7394e2ae7f 26 @author Andy Kirkham
AjK 12:8c7394e2ae7f 27 */
AjK 12:8c7394e2ae7f 28
AjK 12:8c7394e2ae7f 29 #ifndef MODSERIAL_H
AjK 12:8c7394e2ae7f 30 #define MODSERIAL_H
AjK 12:8c7394e2ae7f 31
AjK 12:8c7394e2ae7f 32 /** @defgroup API The MODSERIAL API */
AjK 12:8c7394e2ae7f 33 /** @defgroup MISC Misc MODSERIAL functions */
AjK 12:8c7394e2ae7f 34 /** @defgroup INTERNALS MODSERIAL Internals */
AjK 12:8c7394e2ae7f 35
AjK 12:8c7394e2ae7f 36 #ifndef MODSERIAL_DEFAULT_RX_BUFFER_SIZE
AjK 12:8c7394e2ae7f 37 #define MODSERIAL_DEFAULT_RX_BUFFER_SIZE 256
AjK 12:8c7394e2ae7f 38 #endif
AjK 12:8c7394e2ae7f 39
AjK 12:8c7394e2ae7f 40 #ifndef MODSERIAL_DEFAULT_TX_BUFFER_SIZE
AjK 12:8c7394e2ae7f 41 #define MODSERIAL_DEFAULT_TX_BUFFER_SIZE 256
AjK 12:8c7394e2ae7f 42 #endif
AjK 12:8c7394e2ae7f 43
AjK 12:8c7394e2ae7f 44 #include "mbed.h"
AjK 12:8c7394e2ae7f 45
AjK 12:8c7394e2ae7f 46 namespace AjK {
AjK 12:8c7394e2ae7f 47
AjK 18:21ef26402365 48 // Forward reference.
AjK 18:21ef26402365 49 class MODSERIAL;
AjK 18:21ef26402365 50
AjK 18:21ef26402365 51 /**
AjK 18:21ef26402365 52 * @author Andy Kirkham
AjK 18:21ef26402365 53 * @see http://mbed.org/cookbook/MODSERIAL
AjK 18:21ef26402365 54 * @see example3a.cpp
AjK 18:21ef26402365 55 * @see example3b.cpp
AjK 18:21ef26402365 56 * @see API
AjK 18:21ef26402365 57 *
AjK 18:21ef26402365 58 * <b>MODSERIAL_IRQ_INFO</b> is a class used to pass information (and access to protected
AjK 19:a158936322cc 59 * MODSERIAL functions) to IRQ callbacks.
AjK 18:21ef26402365 60 */
AjK 18:21ef26402365 61 class MODSERIAL_IRQ_INFO
AjK 18:21ef26402365 62 {
AjK 18:21ef26402365 63 public:
AjK 18:21ef26402365 64 friend class MODSERIAL;
AjK 18:21ef26402365 65
AjK 18:21ef26402365 66 MODSERIAL *serial;
AjK 18:21ef26402365 67
AjK 18:21ef26402365 68 MODSERIAL_IRQ_INFO() { serial = 0; }
AjK 18:21ef26402365 69
AjK 18:21ef26402365 70 /** rxDiscardLastChar()
AjK 18:21ef26402365 71 *
AjK 18:21ef26402365 72 * Remove the last char placed into the rx buffer.
AjK 18:21ef26402365 73 * This is an operation that can only be performed
AjK 18:21ef26402365 74 * by an rxCallback function.
AjK 18:21ef26402365 75 * @ingroup API
AjK 18:21ef26402365 76 * @return The byte removed from the buffer.
AjK 18:21ef26402365 77 */
AjK 18:21ef26402365 78 int rxDiscardLastChar(void);
AjK 18:21ef26402365 79
AjK 18:21ef26402365 80 protected:
AjK 18:21ef26402365 81
AjK 18:21ef26402365 82 /** setSerial()
AjK 18:21ef26402365 83 *
AjK 18:21ef26402365 84 * Used internally by MODSERIAL to set the "this" pointer
AjK 18:21ef26402365 85 * of the MODSERIAL that created this object.
AjK 18:21ef26402365 86 * @ingroup INTERNAL
AjK 18:21ef26402365 87 * @param A pointer to a MODSERIAL object instance.
AjK 18:21ef26402365 88 */
AjK 18:21ef26402365 89 void setSerial(MODSERIAL *s) { serial = s; }
AjK 18:21ef26402365 90 };
AjK 18:21ef26402365 91
AjK 18:21ef26402365 92 // Forward reference dummy class.
AjK 18:21ef26402365 93 class MODSERIAL_callback_dummy;
AjK 18:21ef26402365 94
AjK 18:21ef26402365 95 /**
AjK 18:21ef26402365 96 * @author Andy Kirkham
AjK 18:21ef26402365 97 * @see http://mbed.org/cookbook/MODSERIAL
AjK 18:21ef26402365 98 * @see example3a.cpp
AjK 18:21ef26402365 99 * @see example3b.cpp
AjK 18:21ef26402365 100 * @see API
AjK 18:21ef26402365 101 *
AjK 18:21ef26402365 102 * <b>MODSERIAL_callback</b> is a class used to hold application callbacks that
AjK 18:21ef26402365 103 * MODSERIAL can invoke on certain events.
AjK 18:21ef26402365 104 */
AjK 18:21ef26402365 105 class MODSERIAL_callback
AjK 18:21ef26402365 106 {
AjK 18:21ef26402365 107 protected:
AjK 18:21ef26402365 108
AjK 18:21ef26402365 109 //! C callback function pointer.
AjK 18:21ef26402365 110 void (*c_callback)(MODSERIAL_IRQ_INFO *);
AjK 18:21ef26402365 111
AjK 18:21ef26402365 112 //! C++ callback object/method pointer (the object part).
AjK 18:21ef26402365 113 MODSERIAL_callback_dummy *obj_callback;
AjK 18:21ef26402365 114
AjK 18:21ef26402365 115 //! C++ callback object/method pointer (the method part).
AjK 18:21ef26402365 116 void (MODSERIAL_callback_dummy::*method_callback)(MODSERIAL_IRQ_INFO *);
AjK 18:21ef26402365 117
AjK 18:21ef26402365 118 public:
AjK 18:21ef26402365 119
AjK 18:21ef26402365 120 /** Constructor
AjK 18:21ef26402365 121 */
AjK 18:21ef26402365 122 MODSERIAL_callback() {
AjK 18:21ef26402365 123 c_callback = 0;
AjK 18:21ef26402365 124 obj_callback = 0;
AjK 18:21ef26402365 125 method_callback = 0;
AjK 18:21ef26402365 126 }
AjK 18:21ef26402365 127
AjK 18:21ef26402365 128 /** attach - Overloaded attachment function.
AjK 18:21ef26402365 129 *
AjK 18:21ef26402365 130 * Attach a C type function pointer as the callback.
AjK 18:21ef26402365 131 *
AjK 18:21ef26402365 132 * Note, the callback function prototype must be:-
AjK 18:21ef26402365 133 * @code
AjK 18:21ef26402365 134 * void myCallbackFunction(MODSERIAL_IRQ_INFO *);
AjK 18:21ef26402365 135 * @endcode
AjK 18:21ef26402365 136 * @param A C function pointer to call.
AjK 18:21ef26402365 137 */
AjK 18:21ef26402365 138 void attach(void (*function)(MODSERIAL_IRQ_INFO *) = 0) { c_callback = function; }
AjK 18:21ef26402365 139
AjK 18:21ef26402365 140 /** attach - Overloaded attachment function.
AjK 18:21ef26402365 141 *
AjK 18:21ef26402365 142 * Attach a C++ type object/method pointer as the callback.
AjK 18:21ef26402365 143 *
AjK 18:21ef26402365 144 * Note, the callback method prototype must be:-
AjK 18:21ef26402365 145 * @code
AjK 18:21ef26402365 146 * public:
AjK 18:21ef26402365 147 * void myCallbackFunction(MODSERIAL_IRQ_INFO *);
AjK 18:21ef26402365 148 * @endcode
AjK 18:21ef26402365 149 * @param A C++ object pointer.
AjK 18:21ef26402365 150 * @param A C++ method within the object to call.
AjK 18:21ef26402365 151 */
AjK 18:21ef26402365 152 template<class T>
AjK 18:21ef26402365 153 void attach(T* item, void (T::*method)(MODSERIAL_IRQ_INFO *)) {
AjK 18:21ef26402365 154 obj_callback = (MODSERIAL_callback_dummy *)item;
AjK 18:21ef26402365 155 method_callback = (void (MODSERIAL_callback_dummy::*)(MODSERIAL_IRQ_INFO *))method;
AjK 18:21ef26402365 156 }
AjK 18:21ef26402365 157
AjK 18:21ef26402365 158 /** call - Overloaded callback initiator.
AjK 18:21ef26402365 159 *
AjK 18:21ef26402365 160 * call the callback function.
AjK 18:21ef26402365 161 *
AjK 18:21ef26402365 162 * @param uint32_t The value to pass to the callback.
AjK 18:21ef26402365 163 * @return uint32_t The value the callback returns.
AjK 18:21ef26402365 164 */
AjK 18:21ef26402365 165 void call(MODSERIAL_IRQ_INFO *arg) {
AjK 18:21ef26402365 166 if (c_callback != 0) {
AjK 18:21ef26402365 167 (*c_callback)(arg);
AjK 18:21ef26402365 168 }
AjK 18:21ef26402365 169 else {
AjK 18:21ef26402365 170 if (obj_callback != 0 && method_callback != 0) {
AjK 18:21ef26402365 171 (obj_callback->*method_callback)(arg);
AjK 18:21ef26402365 172 }
AjK 18:21ef26402365 173 }
AjK 18:21ef26402365 174 }
AjK 18:21ef26402365 175 };
AjK 18:21ef26402365 176
AjK 12:8c7394e2ae7f 177 /**
AjK 12:8c7394e2ae7f 178 * @author Andy Kirkham
AjK 12:8c7394e2ae7f 179 * @see http://mbed.org/cookbook/MODSERIAL
AjK 12:8c7394e2ae7f 180 * @see http://mbed.org/handbook/Serial
AjK 19:a158936322cc 181 * @see example1.cpp
AjK 19:a158936322cc 182 * @see example2.cpp
AjK 19:a158936322cc 183 * @see example3a.cpp
AjK 19:a158936322cc 184 * @see example3b.cpp
AjK 19:a158936322cc 185 * @see example_dma.cpp
AjK 12:8c7394e2ae7f 186 * @see API
AjK 12:8c7394e2ae7f 187 *
AjK 12:8c7394e2ae7f 188 * <b>MODSERIAL</b> extends the Mbed library <a href="/handbook/Serial">Serial</a> to provide fully buffered
AjK 12:8c7394e2ae7f 189 * TX and RX streams. Buffer length is fully customisable.
AjK 12:8c7394e2ae7f 190 *
AjK 12:8c7394e2ae7f 191 * Before using MODSERIAL users should be familar with Mbed's standard <a href="/handbook/Serial">Serial</a>
AjK 12:8c7394e2ae7f 192 * library object. MODSERIAL is a direct "drop in" replacement for <a href="/handbook/Serial">Serial</a>. Where
AjK 12:8c7394e2ae7f 193 * previously Serial was used, MODSERIAL can be used as adirect replacement instantly offering standard
AjK 12:8c7394e2ae7f 194 * TX and RX buffering. By default, both TX and RX buffers are 256 bytes in length.
AjK 12:8c7394e2ae7f 195 *
AjK 12:8c7394e2ae7f 196 * @image html /media/uploads/mbedofficial/serial_interfaces.png
AjK 12:8c7394e2ae7f 197 *
AjK 12:8c7394e2ae7f 198 * Standard example:
AjK 12:8c7394e2ae7f 199 * @code
AjK 12:8c7394e2ae7f 200 * #include "mbed.h"
AjK 12:8c7394e2ae7f 201 * #include "MODSERIAL.h"
AjK 12:8c7394e2ae7f 202 *
AjK 12:8c7394e2ae7f 203 * MODSERIAL pc(USBTX, USBRX); // tx, rx
AjK 12:8c7394e2ae7f 204 *
AjK 12:8c7394e2ae7f 205 * int main() {
AjK 12:8c7394e2ae7f 206 * pc.printf("Hello World!");
AjK 12:8c7394e2ae7f 207 * while(1) {
AjK 12:8c7394e2ae7f 208 * pc.putc(pc.getc() + 1);
AjK 12:8c7394e2ae7f 209 * }
AjK 12:8c7394e2ae7f 210 * }
AjK 12:8c7394e2ae7f 211 * @endcode
AjK 12:8c7394e2ae7f 212 *
AjK 12:8c7394e2ae7f 213 * Example with alternate buffer length:
AjK 12:8c7394e2ae7f 214 * @code
AjK 12:8c7394e2ae7f 215 * #include "mbed.h"
AjK 12:8c7394e2ae7f 216 * #include "MODSERIAL.h"
AjK 12:8c7394e2ae7f 217 *
AjK 12:8c7394e2ae7f 218 * // Make TX and RX buffers 512byes in length
AjK 12:8c7394e2ae7f 219 * MODSERIAL pc(USBTX, USBRX, 512); // tx, rx
AjK 12:8c7394e2ae7f 220 *
AjK 12:8c7394e2ae7f 221 * int main() {
AjK 12:8c7394e2ae7f 222 * pc.printf("Hello World!");
AjK 12:8c7394e2ae7f 223 * while(1) {
AjK 12:8c7394e2ae7f 224 * pc.putc(pc.getc() + 1);
AjK 12:8c7394e2ae7f 225 * }
AjK 12:8c7394e2ae7f 226 * }
AjK 12:8c7394e2ae7f 227 * @endcode
AjK 12:8c7394e2ae7f 228 *
AjK 12:8c7394e2ae7f 229 * Example with alternate buffer length:
AjK 12:8c7394e2ae7f 230 * @code
AjK 12:8c7394e2ae7f 231 * #include "mbed.h"
AjK 12:8c7394e2ae7f 232 * #include "MODSERIAL.h"
AjK 12:8c7394e2ae7f 233 *
AjK 12:8c7394e2ae7f 234 * // Make TX 1024bytes and RX 512byes in length
AjK 12:8c7394e2ae7f 235 * MODSERIAL pc(USBTX, USBRX, 1024, 512); // tx, rx
AjK 12:8c7394e2ae7f 236 *
AjK 12:8c7394e2ae7f 237 * int main() {
AjK 12:8c7394e2ae7f 238 * pc.printf("Hello World!");
AjK 12:8c7394e2ae7f 239 * while(1) {
AjK 12:8c7394e2ae7f 240 * pc.putc(pc.getc() + 1);
AjK 12:8c7394e2ae7f 241 * }
AjK 12:8c7394e2ae7f 242 * }
AjK 12:8c7394e2ae7f 243 * @endcode
AjK 12:8c7394e2ae7f 244 */
AjK 12:8c7394e2ae7f 245 class MODSERIAL : public Serial
AjK 12:8c7394e2ae7f 246 {
AjK 12:8c7394e2ae7f 247 public:
AjK 12:8c7394e2ae7f 248
AjK 18:21ef26402365 249 // Allow instances of MODSERIAL_IRQ_INFO to use protected properties and methods.
AjK 18:21ef26402365 250 friend class MODSERIAL_IRQ_INFO;
AjK 18:21ef26402365 251
AjK 12:8c7394e2ae7f 252 //! A copy of the Serial parity enum
AjK 12:8c7394e2ae7f 253 /** @see http://mbed.org/projects/libraries/api/mbed/trunk/Serial#Serial.format */
AjK 12:8c7394e2ae7f 254 enum Parity {
AjK 12:8c7394e2ae7f 255 None = 0
AjK 12:8c7394e2ae7f 256 , Odd
AjK 12:8c7394e2ae7f 257 , Even
AjK 12:8c7394e2ae7f 258 , Forced1
AjK 12:8c7394e2ae7f 259 , Forced0
AjK 12:8c7394e2ae7f 260 };
AjK 12:8c7394e2ae7f 261
AjK 12:8c7394e2ae7f 262 //! A copy of the Serial IrqType enum
AjK 12:8c7394e2ae7f 263 enum IrqType {
AjK 12:8c7394e2ae7f 264 RxIrq = 0
AjK 12:8c7394e2ae7f 265 , TxIrq
AjK 12:8c7394e2ae7f 266 , RxOvIrq
AjK 12:8c7394e2ae7f 267 , TxOvIrq
AjK 12:8c7394e2ae7f 268 , TxEmpty
AjK 12:8c7394e2ae7f 269 , RxAutoDetect
AjK 12:8c7394e2ae7f 270 , NumOfIrqTypes
AjK 12:8c7394e2ae7f 271 };
AjK 12:8c7394e2ae7f 272
AjK 12:8c7394e2ae7f 273 //! Non-blocking functions return code.
AjK 12:8c7394e2ae7f 274 enum Result {
AjK 12:8c7394e2ae7f 275 Ok = 0 /*!< Ok. */
AjK 12:8c7394e2ae7f 276 , NoMemory = -1 /*!< Memory allocation failed. */
AjK 12:8c7394e2ae7f 277 , NoChar = -1 /*!< No character in buffer. */
AjK 12:8c7394e2ae7f 278 , BufferOversize = -2 /*!< Oversized buffer. */
AjK 12:8c7394e2ae7f 279 };
AjK 12:8c7394e2ae7f 280
AjK 12:8c7394e2ae7f 281 /**
AjK 12:8c7394e2ae7f 282 * The MODSERIAL constructor is used to initialise the serial object.
AjK 12:8c7394e2ae7f 283 *
AjK 12:8c7394e2ae7f 284 * @param tx PinName of the TX pin.
AjK 12:8c7394e2ae7f 285 * @param rx PinName of the TX pin.
AjK 12:8c7394e2ae7f 286 * @param name An option name for RPC usage.
AjK 12:8c7394e2ae7f 287 */
AjK 12:8c7394e2ae7f 288 MODSERIAL(PinName tx, PinName rx, const char *name = NULL);
AjK 12:8c7394e2ae7f 289
AjK 12:8c7394e2ae7f 290 /**
AjK 12:8c7394e2ae7f 291 * The MODSERIAL constructor is used to initialise the serial object.
AjK 12:8c7394e2ae7f 292 *
AjK 12:8c7394e2ae7f 293 * @param tx PinName of the TX pin.
AjK 12:8c7394e2ae7f 294 * @param rx PinName of the TX pin.
AjK 12:8c7394e2ae7f 295 * @param bufferSize Integer of the TX and RX buffer sizes.
AjK 12:8c7394e2ae7f 296 * @param name An option name for RPC usage.
AjK 12:8c7394e2ae7f 297 */
AjK 12:8c7394e2ae7f 298 MODSERIAL(PinName tx, PinName rx, int bufferSize, const char *name = NULL);
AjK 12:8c7394e2ae7f 299
AjK 12:8c7394e2ae7f 300 /**
AjK 12:8c7394e2ae7f 301 * The MODSERIAL constructor is used to initialise the serial object.
AjK 12:8c7394e2ae7f 302 *
AjK 12:8c7394e2ae7f 303 * @param tx PinName of the TX pin.
AjK 12:8c7394e2ae7f 304 * @param rx PinName of the TX pin.
AjK 12:8c7394e2ae7f 305 * @param txBufferSize Integer of the TX buffer sizes.
AjK 12:8c7394e2ae7f 306 * @param rxBufferSize Integer of the RX buffer sizes.
AjK 12:8c7394e2ae7f 307 * @param name An option name for RPC usage.
AjK 12:8c7394e2ae7f 308 */
AjK 12:8c7394e2ae7f 309 MODSERIAL(PinName tx, PinName rx, int txBufferSize, int rxBufferSize, const char *name = NULL);
AjK 12:8c7394e2ae7f 310
AjK 12:8c7394e2ae7f 311 virtual ~MODSERIAL();
AjK 12:8c7394e2ae7f 312
AjK 12:8c7394e2ae7f 313 /**
AjK 12:8c7394e2ae7f 314 * Function: attach
AjK 12:8c7394e2ae7f 315 *
AjK 12:8c7394e2ae7f 316 * The Mbed standard <a href="/handbook/Serial">Serial</a> library object allows an interrupt callback
AjK 12:8c7394e2ae7f 317 * to be made when a byte is received by the TX or RX UART hardware. MODSERIAL traps these interrupts
AjK 12:8c7394e2ae7f 318 * to enable it's buffering system. However, after the byte has been received/sent under interrupt control,
AjK 12:8c7394e2ae7f 319 * MODSERIAL can callback a user function as a notification of the interrupt. Note, user code should not
AjK 12:8c7394e2ae7f 320 * directly interact with the Uart hardware, MODSERIAL does that, instead, MODSERIAL API functions should
AjK 12:8c7394e2ae7f 321 * be used.
AjK 12:8c7394e2ae7f 322 *
AjK 12:8c7394e2ae7f 323 * <b>Note</b>, a character is written out then, if there is room in the TX FIFO and the TX buffer is empty,
AjK 12:8c7394e2ae7f 324 * putc() will put the character directly into THR (the output holding register). If the TX FIFO is full and
AjK 12:8c7394e2ae7f 325 * cannot accept the character, it is placed into the TX output buffer. The TX interrupts are then enabled
AjK 12:8c7394e2ae7f 326 * so that when the TX FIFO empties, the TX buffer is then transferred to the THR FIFO. The TxIrq will ONLY
AjK 12:8c7394e2ae7f 327 * be activated when this transfer of a character from BUFFER to THR FIFO takes place. If your character
AjK 12:8c7394e2ae7f 328 * throughput is not high bandwidth, then the 16 byte TX FIFO may be enough and the TX output buffer may
AjK 12:8c7394e2ae7f 329 * never come into play.
AjK 12:8c7394e2ae7f 330 *
AjK 12:8c7394e2ae7f 331 * @code
AjK 12:8c7394e2ae7f 332 * #include "mbed.h"
AjK 12:8c7394e2ae7f 333 * #include "MODSERIAL.h"
AjK 12:8c7394e2ae7f 334 *
AjK 12:8c7394e2ae7f 335 * DigitalOut led1(LED1);
AjK 12:8c7394e2ae7f 336 * DigitalOut led2(LED2);
AjK 12:8c7394e2ae7f 337 * DigitalOut led3(LED3);
AjK 12:8c7394e2ae7f 338 *
AjK 12:8c7394e2ae7f 339 * // To test, connect p9 to p10 as a loopback.
AjK 12:8c7394e2ae7f 340 * MODSERIAL pc(p9, p10);
AjK 12:8c7394e2ae7f 341 *
AjK 12:8c7394e2ae7f 342 * // This function is called when a character goes into the TX buffer.
AjK 12:8c7394e2ae7f 343 * void txCallback(void) {
AjK 12:8c7394e2ae7f 344 * led2 = !led2;
AjK 12:8c7394e2ae7f 345 * }
AjK 12:8c7394e2ae7f 346 *
AjK 12:8c7394e2ae7f 347 * // This function is called when a character goes into the RX buffer.
AjK 12:8c7394e2ae7f 348 * void rxCallback(void) {
AjK 12:8c7394e2ae7f 349 * led3 = !led3;
AjK 12:8c7394e2ae7f 350 * }
AjK 12:8c7394e2ae7f 351 *
AjK 12:8c7394e2ae7f 352 * int main() {
AjK 12:8c7394e2ae7f 353 * pc.baud(115200);
AjK 12:8c7394e2ae7f 354 * pc.attach(&txCallback, MODSERIAL::TxIrq);
AjK 12:8c7394e2ae7f 355 * pc.attach(&rxCallback, MODSERIAL::RxIrq);
AjK 12:8c7394e2ae7f 356 *
AjK 12:8c7394e2ae7f 357 * while(1) {
AjK 12:8c7394e2ae7f 358 * led1 = !led1;
AjK 12:8c7394e2ae7f 359 * wait(0.5);
AjK 12:8c7394e2ae7f 360 * pc.putc('A');
AjK 12:8c7394e2ae7f 361 * wait(0.5);
AjK 12:8c7394e2ae7f 362 * }
AjK 12:8c7394e2ae7f 363 * ]
AjK 12:8c7394e2ae7f 364 * @endcode
AjK 12:8c7394e2ae7f 365 *
AjK 12:8c7394e2ae7f 366 * @ingroup API
AjK 12:8c7394e2ae7f 367 * @param fptr A pointer to a void function, or 0 to set as none
AjK 12:8c7394e2ae7f 368 * @param type Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty)
AjK 12:8c7394e2ae7f 369 */
AjK 18:21ef26402365 370 void attach(void (*fptr)(MODSERIAL_IRQ_INFO *), IrqType type = RxIrq) { _isr[type].attach(fptr); }
AjK 12:8c7394e2ae7f 371
AjK 12:8c7394e2ae7f 372 /**
AjK 12:8c7394e2ae7f 373 * Function: attach
AjK 12:8c7394e2ae7f 374 *
AjK 12:8c7394e2ae7f 375 * The Mbed standard <a href="/handbook/Serial">Serial</a> library object allows an interrupt callback
AjK 12:8c7394e2ae7f 376 * to be made when a byte is received by the TX or RX UART hardware. MODSERIAL traps these interrupts
AjK 12:8c7394e2ae7f 377 * to enable it's buffering system. However, after the byte has been received/sent under interrupt control,
AjK 12:8c7394e2ae7f 378 * MODSERIAL can callback a user function as a notification of the interrupt. Note, user code should not
AjK 12:8c7394e2ae7f 379 * directly interact with the Uart hardware, MODSERIAL does that, instead, MODSERIAL API functions should
AjK 12:8c7394e2ae7f 380 * be used.
AjK 12:8c7394e2ae7f 381 *
AjK 12:8c7394e2ae7f 382 * <b>Note</b>, a character is written out then, if there is room in the TX FIFO and the TX buffer is empty,
AjK 12:8c7394e2ae7f 383 * putc() will put the character directly into THR (the output holding register). If the TX FIFO is full and
AjK 12:8c7394e2ae7f 384 * cannot accept the character, it is placed into the TX output buffer. The TX interrupts are then enabled
AjK 12:8c7394e2ae7f 385 * so that when the TX FIFO empties, the TX buffer is then transferred to the THR FIFO. The TxIrq will ONLY
AjK 12:8c7394e2ae7f 386 * be activated when this transfer of a character from BUFFER to THR FIFO takes place. If your character
AjK 12:8c7394e2ae7f 387 * throughput is not high bandwidth, then the 16 byte TX FIFO may be enough and the TX output buffer may
AjK 12:8c7394e2ae7f 388 * never come into play.
AjK 12:8c7394e2ae7f 389 *
AjK 12:8c7394e2ae7f 390 * @code
AjK 12:8c7394e2ae7f 391 * #include "mbed.h"
AjK 12:8c7394e2ae7f 392 * #include "MODSERIAL.h"
AjK 12:8c7394e2ae7f 393 *
AjK 12:8c7394e2ae7f 394 * DigitalOut led1(LED1);
AjK 12:8c7394e2ae7f 395 * DigitalOut led2(LED2);
AjK 12:8c7394e2ae7f 396 * DigitalOut led3(LED3);
AjK 12:8c7394e2ae7f 397 *
AjK 12:8c7394e2ae7f 398 * // To test, connect p9 to p10 as a loopback.
AjK 12:8c7394e2ae7f 399 * MODSERIAL pc(p9, p10);
AjK 12:8c7394e2ae7f 400 *
AjK 12:8c7394e2ae7f 401 * class Foo {
AjK 12:8c7394e2ae7f 402 * public:
AjK 12:8c7394e2ae7f 403 * // This method is called when a character goes into the TX buffer.
AjK 12:8c7394e2ae7f 404 * void txCallback(void) { led2 = !led2; }
AjK 12:8c7394e2ae7f 405 *
AjK 12:8c7394e2ae7f 406 * // This method is called when a character goes into the RX buffer.
AjK 12:8c7394e2ae7f 407 * void rxCallback(void) { led3 = !led3; }
AjK 12:8c7394e2ae7f 408 * };
AjK 12:8c7394e2ae7f 409 *
AjK 12:8c7394e2ae7f 410 * Foo foo;
AjK 12:8c7394e2ae7f 411 *
AjK 12:8c7394e2ae7f 412 * int main() {
AjK 12:8c7394e2ae7f 413 * pc.baud(115200);
AjK 12:8c7394e2ae7f 414 * pc.attach(&foo, &Foo::txCallback, MODSERIAL::TxIrq);
AjK 12:8c7394e2ae7f 415 * pc.attach(&foo, &Foo::rxCallback, MODSERIAL::RxIrq);
AjK 12:8c7394e2ae7f 416 *
AjK 12:8c7394e2ae7f 417 * while(1) {
AjK 12:8c7394e2ae7f 418 * led1 = !led1;
AjK 12:8c7394e2ae7f 419 * wait(0.5);
AjK 12:8c7394e2ae7f 420 * pc.putc('A');
AjK 12:8c7394e2ae7f 421 * wait(0.5);
AjK 12:8c7394e2ae7f 422 * }
AjK 12:8c7394e2ae7f 423 * ]
AjK 12:8c7394e2ae7f 424 * @endcode
AjK 12:8c7394e2ae7f 425 *
AjK 12:8c7394e2ae7f 426 * @ingroup API
AjK 12:8c7394e2ae7f 427 * @param tptr A pointer to the object to call the member function on
AjK 12:8c7394e2ae7f 428 * @param mptr A pointer to the member function to be called
AjK 12:8c7394e2ae7f 429 * @param type Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty)
AjK 12:8c7394e2ae7f 430 */
AjK 12:8c7394e2ae7f 431 template<typename T>
AjK 18:21ef26402365 432 void attach(T* tptr, uint32_t (T::*mptr)(uint32_t), IrqType type = RxIrq) {
AjK 18:21ef26402365 433 if((mptr != 0) && (tptr != 0)) {
AjK 12:8c7394e2ae7f 434 _isr[type].attach(tptr, mptr);
AjK 12:8c7394e2ae7f 435 }
AjK 12:8c7394e2ae7f 436 }
AjK 12:8c7394e2ae7f 437
AjK 12:8c7394e2ae7f 438 /**
AjK 12:8c7394e2ae7f 439 * @see attach
AjK 12:8c7394e2ae7f 440 * @ingroup API
AjK 12:8c7394e2ae7f 441 */
AjK 18:21ef26402365 442 void connect(void (*fptr)(MODSERIAL_IRQ_INFO *), IrqType type = RxIrq) { _isr[RxIrq].attach(fptr); }
AjK 12:8c7394e2ae7f 443
AjK 12:8c7394e2ae7f 444 /**
AjK 12:8c7394e2ae7f 445 * @see attach
AjK 12:8c7394e2ae7f 446 * @ingroup API
AjK 12:8c7394e2ae7f 447 */
AjK 12:8c7394e2ae7f 448 template<typename T>
AjK 18:21ef26402365 449 void connect(T* tptr, void (T::*mptr)(MODSERIAL_IRQ_INFO *), IrqType type = RxIrq) {
AjK 18:21ef26402365 450 if((mptr != 0) && (tptr != 0)) {
AjK 12:8c7394e2ae7f 451 _isr[type].attach(tptr, mptr);
AjK 12:8c7394e2ae7f 452 }
AjK 12:8c7394e2ae7f 453 }
AjK 12:8c7394e2ae7f 454
AjK 12:8c7394e2ae7f 455 /**
AjK 12:8c7394e2ae7f 456 * Function: writeable
AjK 12:8c7394e2ae7f 457 *
AjK 12:8c7394e2ae7f 458 * Determine if there is space available to write a byte
AjK 12:8c7394e2ae7f 459 *
AjK 12:8c7394e2ae7f 460 * @ingroup API
AjK 12:8c7394e2ae7f 461 * @return 1 if there is space to write a character, else 0
AjK 12:8c7394e2ae7f 462 */
AjK 12:8c7394e2ae7f 463 int writeable() { return txBufferFull() ? 0 : 1; }
AjK 12:8c7394e2ae7f 464
AjK 12:8c7394e2ae7f 465 /**
AjK 12:8c7394e2ae7f 466 * Function: readable
AjK 12:8c7394e2ae7f 467 *
AjK 12:8c7394e2ae7f 468 * Determine if there is a byte available to read
AjK 12:8c7394e2ae7f 469 *
AjK 12:8c7394e2ae7f 470 * @ingroup API
AjK 12:8c7394e2ae7f 471 * @return 1 if there is a character available to read, else 0
AjK 12:8c7394e2ae7f 472 */
AjK 12:8c7394e2ae7f 473 int readable() { return rxBufferEmpty() ? 0 : 1; }
AjK 12:8c7394e2ae7f 474
AjK 12:8c7394e2ae7f 475 /**
AjK 12:8c7394e2ae7f 476 * Function: txBufferSane
AjK 12:8c7394e2ae7f 477 *
AjK 12:8c7394e2ae7f 478 * Determine if the TX buffer has been initialized.
AjK 12:8c7394e2ae7f 479 *
AjK 12:8c7394e2ae7f 480 * @ingroup API
AjK 12:8c7394e2ae7f 481 * @return true if the buffer is initialized, else false
AjK 12:8c7394e2ae7f 482 */
AjK 12:8c7394e2ae7f 483 bool txBufferSane(void) { return buffer[TxIrq] != (char *)NULL ? true : false; }
AjK 12:8c7394e2ae7f 484
AjK 12:8c7394e2ae7f 485 /**
AjK 12:8c7394e2ae7f 486 * Function: rxBufferSane
AjK 12:8c7394e2ae7f 487 *
AjK 12:8c7394e2ae7f 488 * Determine if the RX buffer has been initialized.
AjK 12:8c7394e2ae7f 489 *
AjK 12:8c7394e2ae7f 490 * @ingroup API
AjK 12:8c7394e2ae7f 491 * @return true if the buffer is initialized, else false
AjK 12:8c7394e2ae7f 492 */
AjK 12:8c7394e2ae7f 493 bool rxBufferSane(void) { return buffer[TxIrq] != (char *)NULL ? true : false; }
AjK 12:8c7394e2ae7f 494
AjK 12:8c7394e2ae7f 495 /**
AjK 12:8c7394e2ae7f 496 * Function: txBufferGetCount
AjK 12:8c7394e2ae7f 497 *
AjK 12:8c7394e2ae7f 498 * Returns how many bytes are in the TX buffer
AjK 12:8c7394e2ae7f 499 *
AjK 12:8c7394e2ae7f 500 * @ingroup API
AjK 12:8c7394e2ae7f 501 * @return The number of bytes in the TX buffer
AjK 12:8c7394e2ae7f 502 */
AjK 12:8c7394e2ae7f 503 int txBufferGetCount(void) { return buffer_count[TxIrq]; }
AjK 12:8c7394e2ae7f 504
AjK 12:8c7394e2ae7f 505 /**
AjK 12:8c7394e2ae7f 506 * Function: rxBufferGetCount
AjK 12:8c7394e2ae7f 507 *
AjK 12:8c7394e2ae7f 508 * Returns how many bytes are in the RX buffer
AjK 12:8c7394e2ae7f 509 *
AjK 12:8c7394e2ae7f 510 * @ingroup API
AjK 12:8c7394e2ae7f 511 * @return The number of bytes in the RX buffer
AjK 12:8c7394e2ae7f 512 */
AjK 12:8c7394e2ae7f 513 int rxBufferGetCount(void) { return buffer_count[RxIrq]; }
AjK 12:8c7394e2ae7f 514
AjK 12:8c7394e2ae7f 515 /**
AjK 12:8c7394e2ae7f 516 * Function: txBufferGetSize
AjK 12:8c7394e2ae7f 517 *
AjK 12:8c7394e2ae7f 518 * Returns the current size of the TX buffer
AjK 12:8c7394e2ae7f 519 *
AjK 12:8c7394e2ae7f 520 * @ingroup API
AjK 12:8c7394e2ae7f 521 * @return The length iof the TX buffer in bytes
AjK 12:8c7394e2ae7f 522 */
AjK 12:8c7394e2ae7f 523 int txBufferGetSize(int size) { return buffer_size[TxIrq]; }
AjK 12:8c7394e2ae7f 524
AjK 12:8c7394e2ae7f 525 /**
AjK 12:8c7394e2ae7f 526 * Function: rxBufferGetSize
AjK 12:8c7394e2ae7f 527 *
AjK 12:8c7394e2ae7f 528 * Returns the current size of the RX buffer
AjK 12:8c7394e2ae7f 529 *
AjK 12:8c7394e2ae7f 530 * @ingroup API
AjK 12:8c7394e2ae7f 531 * @return The length iof the RX buffer in bytes
AjK 12:8c7394e2ae7f 532 */
AjK 12:8c7394e2ae7f 533 int rxBufferGetSize(int size) { return buffer_size[RxIrq]; }
AjK 12:8c7394e2ae7f 534
AjK 12:8c7394e2ae7f 535 /**
AjK 12:8c7394e2ae7f 536 * Function: txBufferFull
AjK 12:8c7394e2ae7f 537 *
AjK 12:8c7394e2ae7f 538 * Is the TX buffer full?
AjK 12:8c7394e2ae7f 539 *
AjK 12:8c7394e2ae7f 540 * @ingroup API
AjK 12:8c7394e2ae7f 541 * @return true if the TX buffer is full, otherwise false
AjK 12:8c7394e2ae7f 542 */
AjK 12:8c7394e2ae7f 543 bool txBufferFull(void);
AjK 12:8c7394e2ae7f 544
AjK 12:8c7394e2ae7f 545 /**
AjK 12:8c7394e2ae7f 546 * Function: rxBufferFull
AjK 12:8c7394e2ae7f 547 *
AjK 12:8c7394e2ae7f 548 * Is the RX buffer full?
AjK 12:8c7394e2ae7f 549 *
AjK 12:8c7394e2ae7f 550 * @ingroup API
AjK 12:8c7394e2ae7f 551 * @return true if the RX buffer is full, otherwise false
AjK 12:8c7394e2ae7f 552 */
AjK 12:8c7394e2ae7f 553 bool rxBufferFull(void);
AjK 12:8c7394e2ae7f 554
AjK 12:8c7394e2ae7f 555 /**
AjK 12:8c7394e2ae7f 556 * Function: txBufferEmpty
AjK 12:8c7394e2ae7f 557 *
AjK 12:8c7394e2ae7f 558 * Is the TX buffer empty?
AjK 12:8c7394e2ae7f 559 *
AjK 12:8c7394e2ae7f 560 * @ingroup API
AjK 12:8c7394e2ae7f 561 * @return true if the TX buffer is empty, otherwise false
AjK 12:8c7394e2ae7f 562 */
AjK 12:8c7394e2ae7f 563 bool txBufferEmpty(void);
AjK 12:8c7394e2ae7f 564
AjK 12:8c7394e2ae7f 565 /**
AjK 12:8c7394e2ae7f 566 * Function: rxBufferEmpty
AjK 12:8c7394e2ae7f 567 *
AjK 12:8c7394e2ae7f 568 * Is the RX buffer empty?
AjK 12:8c7394e2ae7f 569 *
AjK 12:8c7394e2ae7f 570 * @ingroup API
AjK 12:8c7394e2ae7f 571 * @return true if the RX buffer is empty, otherwise false
AjK 12:8c7394e2ae7f 572 */
AjK 12:8c7394e2ae7f 573 bool rxBufferEmpty(void);
AjK 12:8c7394e2ae7f 574
AjK 12:8c7394e2ae7f 575 /**
AjK 12:8c7394e2ae7f 576 * Function: txBufferSetSize
AjK 12:8c7394e2ae7f 577 *
AjK 12:8c7394e2ae7f 578 * Change the TX buffer size.
AjK 12:8c7394e2ae7f 579 *
AjK 12:8c7394e2ae7f 580 * @see Result
AjK 12:8c7394e2ae7f 581 * @ingroup API
AjK 12:8c7394e2ae7f 582 * @param size The new TX buffer size in bytes.
AjK 12:8c7394e2ae7f 583 * @param m Perform a memory sanity check. Errs the Mbed if memory alloc fails.
AjK 12:8c7394e2ae7f 584 * @return Result Ok on success.
AjK 12:8c7394e2ae7f 585 */
AjK 12:8c7394e2ae7f 586 int txBufferSetSize(int size, bool m) { return resizeBuffer(size, TxIrq, m); }
AjK 12:8c7394e2ae7f 587
AjK 12:8c7394e2ae7f 588 /**
AjK 12:8c7394e2ae7f 589 * Function: rxBufferSetSize
AjK 12:8c7394e2ae7f 590 *
AjK 12:8c7394e2ae7f 591 * Change the RX buffer size.
AjK 12:8c7394e2ae7f 592 *
AjK 12:8c7394e2ae7f 593 * @see Result
AjK 12:8c7394e2ae7f 594 * @ingroup API
AjK 12:8c7394e2ae7f 595 * @param size The new RX buffer size in bytes.
AjK 12:8c7394e2ae7f 596 * @param m Perform a memory sanity check. Errs the Mbed if memory alloc fails.
AjK 12:8c7394e2ae7f 597 * @return Result Ok on success.
AjK 12:8c7394e2ae7f 598 */
AjK 12:8c7394e2ae7f 599 int rxBufferSetSize(int size, bool m) { return resizeBuffer(size, RxIrq, m); }
AjK 12:8c7394e2ae7f 600
AjK 12:8c7394e2ae7f 601 /**
AjK 12:8c7394e2ae7f 602 * Function: txBufferSetSize
AjK 12:8c7394e2ae7f 603 *
AjK 12:8c7394e2ae7f 604 * Change the TX buffer size.
AjK 12:8c7394e2ae7f 605 * Always performs a memory sanity check, halting the Mbed on failure.
AjK 12:8c7394e2ae7f 606 *
AjK 12:8c7394e2ae7f 607 * @see Result
AjK 12:8c7394e2ae7f 608 * @ingroup API
AjK 12:8c7394e2ae7f 609 * @param size The new TX buffer size in bytes.
AjK 12:8c7394e2ae7f 610 * @return Result Ok on success.
AjK 12:8c7394e2ae7f 611 */
AjK 12:8c7394e2ae7f 612 int txBufferSetSize(int size) { return resizeBuffer(size, TxIrq, true); }
AjK 12:8c7394e2ae7f 613
AjK 12:8c7394e2ae7f 614 /**
AjK 12:8c7394e2ae7f 615 * Function: rxBufferSetSize
AjK 12:8c7394e2ae7f 616 *
AjK 12:8c7394e2ae7f 617 * Change the RX buffer size.
AjK 12:8c7394e2ae7f 618 * Always performs a memory sanity check, halting the Mbed on failure.
AjK 12:8c7394e2ae7f 619 *
AjK 12:8c7394e2ae7f 620 * @see Result
AjK 12:8c7394e2ae7f 621 * @ingroup API
AjK 12:8c7394e2ae7f 622 * @param size The new RX buffer size in bytes.
AjK 12:8c7394e2ae7f 623 * @return Result Ok on success.
AjK 12:8c7394e2ae7f 624 */
AjK 12:8c7394e2ae7f 625 int rxBufferSetSize(int size) { return resizeBuffer(size, RxIrq, true); }
AjK 12:8c7394e2ae7f 626
AjK 12:8c7394e2ae7f 627 /**
AjK 12:8c7394e2ae7f 628 * Function: txBufferFlush
AjK 12:8c7394e2ae7f 629 *
AjK 12:8c7394e2ae7f 630 * Remove all bytes from the TX buffer.
AjK 12:8c7394e2ae7f 631 * @ingroup API
AjK 12:8c7394e2ae7f 632 */
AjK 12:8c7394e2ae7f 633 void txBufferFlush(void) { flushBuffer(TxIrq); }
AjK 12:8c7394e2ae7f 634
AjK 12:8c7394e2ae7f 635 /**
AjK 12:8c7394e2ae7f 636 * Function: rxBufferFlush
AjK 12:8c7394e2ae7f 637 *
AjK 12:8c7394e2ae7f 638 * Remove all bytes from the RX buffer.
AjK 12:8c7394e2ae7f 639 * @ingroup API
AjK 12:8c7394e2ae7f 640 */
AjK 12:8c7394e2ae7f 641 void rxBufferFlush(void) { flushBuffer(RxIrq); }
AjK 12:8c7394e2ae7f 642
AjK 12:8c7394e2ae7f 643 /**
AjK 12:8c7394e2ae7f 644 * Function: getcNb
AjK 12:8c7394e2ae7f 645 *
AjK 12:8c7394e2ae7f 646 * Like getc() but is non-blocking. If no bytes are in the RX buffer this
AjK 12:8c7394e2ae7f 647 * function returns Result::NoChar (-1)
AjK 12:8c7394e2ae7f 648 *
AjK 12:8c7394e2ae7f 649 * @ingroup API
AjK 12:8c7394e2ae7f 650 * @return A byte from the RX buffer or Result::NoChar (-1) if bufer empty.
AjK 12:8c7394e2ae7f 651 */
AjK 12:8c7394e2ae7f 652 int getcNb() { return __getc(false); }
AjK 12:8c7394e2ae7f 653
AjK 12:8c7394e2ae7f 654 /**
AjK 12:8c7394e2ae7f 655 * Function: getc
AjK 12:8c7394e2ae7f 656 *
AjK 12:8c7394e2ae7f 657 * Overloaded version of Serial::getc()
AjK 12:8c7394e2ae7f 658 *
AjK 12:8c7394e2ae7f 659 * This function blocks (if the RX buffer is empty the function will wait for a
AjK 12:8c7394e2ae7f 660 * character to arrive and then return that character).
AjK 12:8c7394e2ae7f 661 *
AjK 12:8c7394e2ae7f 662 * @ingroup API
AjK 12:8c7394e2ae7f 663 * @return A byte from the RX buffer
AjK 12:8c7394e2ae7f 664 */
AjK 12:8c7394e2ae7f 665 int getc() { return __getc(true); }
AjK 12:8c7394e2ae7f 666
AjK 12:8c7394e2ae7f 667 /**
AjK 12:8c7394e2ae7f 668 * Function: txGetLastChar
AjK 12:8c7394e2ae7f 669 *
AjK 12:8c7394e2ae7f 670 * Rteurn the last byte to pass through the TX interrupt handler.
AjK 12:8c7394e2ae7f 671 *
AjK 12:8c7394e2ae7f 672 * @ingroup MISC
AjK 12:8c7394e2ae7f 673 * @return The byte
AjK 12:8c7394e2ae7f 674 */
AjK 12:8c7394e2ae7f 675 char txGetLastChar(void) { return txc; }
AjK 12:8c7394e2ae7f 676
AjK 12:8c7394e2ae7f 677 /**
AjK 12:8c7394e2ae7f 678 * Function: rxGetLastChar
AjK 12:8c7394e2ae7f 679 *
AjK 12:8c7394e2ae7f 680 * Return the last byte to pass through the RX interrupt handler.
AjK 12:8c7394e2ae7f 681 *
AjK 12:8c7394e2ae7f 682 * @ingroup MISC
AjK 12:8c7394e2ae7f 683 * @return The byte
AjK 12:8c7394e2ae7f 684 */
AjK 12:8c7394e2ae7f 685 char rxGetLastChar(void) { return rxc; }
AjK 12:8c7394e2ae7f 686
AjK 12:8c7394e2ae7f 687 /**
AjK 12:8c7394e2ae7f 688 * Function: txIsBusy
AjK 12:8c7394e2ae7f 689 *
AjK 12:8c7394e2ae7f 690 * If the Uart is still actively sending characters this
AjK 12:8c7394e2ae7f 691 * function will return true.
AjK 12:8c7394e2ae7f 692 *
AjK 12:8c7394e2ae7f 693 * @ingroup API
AjK 12:8c7394e2ae7f 694 * @return bool
AjK 12:8c7394e2ae7f 695 */
AjK 12:8c7394e2ae7f 696 bool txIsBusy(void);
AjK 12:8c7394e2ae7f 697
AjK 12:8c7394e2ae7f 698 /**
AjK 16:8b1dbf4cce4e 699 * Function: autoDetectChar
AjK 12:8c7394e2ae7f 700 *
AjK 12:8c7394e2ae7f 701 * Set the char that, if seen incoming, invokes the AutoDetectChar callback.
AjK 12:8c7394e2ae7f 702 *
AjK 12:8c7394e2ae7f 703 * @ingroup API
AjK 12:8c7394e2ae7f 704 * @param int c The character to detect.
AjK 12:8c7394e2ae7f 705 */
AjK 16:8b1dbf4cce4e 706 void autoDetectChar(char c) { auto_detect_char = c; }
AjK 12:8c7394e2ae7f 707
AjK 12:8c7394e2ae7f 708 /**
AjK 12:8c7394e2ae7f 709 * Function: move
AjK 12:8c7394e2ae7f 710 *
AjK 12:8c7394e2ae7f 711 * Move contents of RX buffer to external buffer. Stops if "end" detected.
AjK 12:8c7394e2ae7f 712 *
AjK 12:8c7394e2ae7f 713 * @ingroup API
AjK 12:8c7394e2ae7f 714 * @param char *s The destination buffer address
AjK 12:8c7394e2ae7f 715 * @param int max The maximum number of chars to move.
AjK 12:8c7394e2ae7f 716 * @param char end If this char is detected stop moving.
AjK 12:8c7394e2ae7f 717 */
AjK 12:8c7394e2ae7f 718 int move(char *s, int max, char end) {
AjK 12:8c7394e2ae7f 719 int counter = 0;
AjK 12:8c7394e2ae7f 720 char c;
AjK 12:8c7394e2ae7f 721 while(readable()) {
AjK 12:8c7394e2ae7f 722 c = getc();
AjK 12:8c7394e2ae7f 723 if (c == end) break;
AjK 12:8c7394e2ae7f 724 *(s++) = c;
AjK 12:8c7394e2ae7f 725 counter++;
AjK 12:8c7394e2ae7f 726 if (counter == max) break;
AjK 12:8c7394e2ae7f 727 }
AjK 12:8c7394e2ae7f 728 return counter;
AjK 12:8c7394e2ae7f 729 }
AjK 12:8c7394e2ae7f 730
AjK 12:8c7394e2ae7f 731 /**
AjK 12:8c7394e2ae7f 732 * Function: move (overloaded)
AjK 12:8c7394e2ae7f 733 *
AjK 12:8c7394e2ae7f 734 * Move contents of RX buffer to external buffer. Stops if auto_detect_char detected.
AjK 12:8c7394e2ae7f 735 *
AjK 12:8c7394e2ae7f 736 * @ingroup API
AjK 12:8c7394e2ae7f 737 * @param int max The maximum number of chars to move.
AjK 12:8c7394e2ae7f 738 * @param char *s The destination buffer address
AjK 12:8c7394e2ae7f 739 */
AjK 12:8c7394e2ae7f 740 int move(char *s, int max) {
AjK 12:8c7394e2ae7f 741 return move(s, max, auto_detect_char);
AjK 12:8c7394e2ae7f 742 }
AjK 12:8c7394e2ae7f 743
AjK 12:8c7394e2ae7f 744 #if 0 // Inhereted from Serial/Stream, for documentation only
AjK 12:8c7394e2ae7f 745 /**
AjK 12:8c7394e2ae7f 746 * Function: putc
AjK 12:8c7394e2ae7f 747 *
AjK 12:8c7394e2ae7f 748 * Write a character
AjK 12:8c7394e2ae7f 749 * Inhereted from Serial/Stream
AjK 12:8c7394e2ae7f 750 *
AjK 12:8c7394e2ae7f 751 * @see http://mbed.org/projects/libraries/api/mbed/trunk/Serial#Serial.putc
AjK 12:8c7394e2ae7f 752 * @ingroup API
AjK 12:8c7394e2ae7f 753 * @param c The character to write to the serial port
AjK 12:8c7394e2ae7f 754 */
AjK 12:8c7394e2ae7f 755 int putc(int c);
AjK 12:8c7394e2ae7f 756 #endif
AjK 12:8c7394e2ae7f 757
AjK 12:8c7394e2ae7f 758 #if 0 // Inhereted from Serial/Stream, for documentation only
AjK 12:8c7394e2ae7f 759 /**
AjK 12:8c7394e2ae7f 760 * Function: printf
AjK 12:8c7394e2ae7f 761 *
AjK 12:8c7394e2ae7f 762 * Write a formated string
AjK 12:8c7394e2ae7f 763 * Inhereted from Serial/Stream
AjK 12:8c7394e2ae7f 764 *
AjK 12:8c7394e2ae7f 765 * @see http://mbed.org/projects/libraries/api/mbed/trunk/Serial#Serial.printf
AjK 12:8c7394e2ae7f 766 * @ingroup API
AjK 12:8c7394e2ae7f 767 * @param format A printf-style format string, followed by the variables to use in formating the string.
AjK 12:8c7394e2ae7f 768 */
AjK 12:8c7394e2ae7f 769 int printf(const char* format, ...);
AjK 12:8c7394e2ae7f 770 #endif
AjK 12:8c7394e2ae7f 771
AjK 12:8c7394e2ae7f 772 #if 0 // Inhereted from Serial/Stream, for documentation only
AjK 12:8c7394e2ae7f 773 /**
AjK 12:8c7394e2ae7f 774 * Function: scanf
AjK 12:8c7394e2ae7f 775 *
AjK 12:8c7394e2ae7f 776 * Read a formated string
AjK 12:8c7394e2ae7f 777 * Inhereted from Serial/Stream
AjK 12:8c7394e2ae7f 778 *
AjK 12:8c7394e2ae7f 779 * @see http://mbed.org/projects/libraries/api/mbed/trunk/Serial#Serial.scanf
AjK 12:8c7394e2ae7f 780 * @ingroup API
AjK 12:8c7394e2ae7f 781 * @param format - A scanf-style format string, followed by the pointers to variables to store the results.
AjK 12:8c7394e2ae7f 782 */
AjK 12:8c7394e2ae7f 783 int scanf(const char* format, ...);
AjK 12:8c7394e2ae7f 784 #endif
AjK 18:21ef26402365 785
AjK 18:21ef26402365 786 protected:
AjK 18:21ef26402365 787 /**
AjK 18:21ef26402365 788 * Used to pass information to callbacks.
AjK 18:21ef26402365 789 * @ingroup INTERNALS
AjK 18:21ef26402365 790 */
AjK 18:21ef26402365 791 MODSERIAL_IRQ_INFO callbackInfo;
AjK 18:21ef26402365 792
AjK 18:21ef26402365 793 /**
AjK 18:21ef26402365 794 * Remove the last char placed into the rx buffer.
AjK 18:21ef26402365 795 * This is an operation that can only be performed
AjK 18:21ef26402365 796 * by an rxCallback function. To protect the buffers
AjK 18:21ef26402365 797 * this function is defined protected so that a
AjK 18:21ef26402365 798 * regular application cannot call it directly. It
AjK 18:21ef26402365 799 * can only be called by the public version within a
AjK 18:21ef26402365 800 * MODSERIAL_IRQ_INFO class.
AjK 18:21ef26402365 801 * @ingroup INTERNALS
AjK 18:21ef26402365 802 * @return The byte removed from the buffer.
AjK 18:21ef26402365 803 */
AjK 18:21ef26402365 804 int rxDiscardLastChar(void);
AjK 12:8c7394e2ae7f 805
AjK 18:21ef26402365 806 private:
AjK 12:8c7394e2ae7f 807
AjK 12:8c7394e2ae7f 808 /**
AjK 12:8c7394e2ae7f 809 * A pointer to the UART peripheral base address being used.
AjK 12:8c7394e2ae7f 810 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 811 */
AjK 12:8c7394e2ae7f 812 void *_base;
AjK 12:8c7394e2ae7f 813
AjK 12:8c7394e2ae7f 814 /**
AjK 12:8c7394e2ae7f 815 * The last byte to pass through the TX IRQ handler.
AjK 12:8c7394e2ae7f 816 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 817 */
AjK 12:8c7394e2ae7f 818 volatile char txc;
AjK 12:8c7394e2ae7f 819
AjK 12:8c7394e2ae7f 820 /**
AjK 12:8c7394e2ae7f 821 * The last byte to pass through the RX IRQ handler.
AjK 12:8c7394e2ae7f 822 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 823 */
AjK 12:8c7394e2ae7f 824 volatile char rxc;
AjK 12:8c7394e2ae7f 825
AjK 12:8c7394e2ae7f 826 /**
AjK 12:8c7394e2ae7f 827 * Pointers to the TX and RX buffers.
AjK 12:8c7394e2ae7f 828 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 829 */
AjK 12:8c7394e2ae7f 830 volatile char *buffer[2];
AjK 12:8c7394e2ae7f 831
AjK 12:8c7394e2ae7f 832 /**
AjK 12:8c7394e2ae7f 833 * Buffer in pointers.
AjK 12:8c7394e2ae7f 834 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 835 */
AjK 12:8c7394e2ae7f 836 volatile int buffer_in[2];
AjK 12:8c7394e2ae7f 837
AjK 12:8c7394e2ae7f 838 /**
AjK 12:8c7394e2ae7f 839 * Buffer out pointers.
AjK 12:8c7394e2ae7f 840 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 841 */
AjK 12:8c7394e2ae7f 842 volatile int buffer_out[2];
AjK 12:8c7394e2ae7f 843
AjK 12:8c7394e2ae7f 844 /**
AjK 12:8c7394e2ae7f 845 * Buffer lengths.
AjK 12:8c7394e2ae7f 846 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 847 */
AjK 12:8c7394e2ae7f 848 volatile int buffer_size[2];
AjK 12:8c7394e2ae7f 849
AjK 12:8c7394e2ae7f 850 /**
AjK 12:8c7394e2ae7f 851 * Buffer content counters.
AjK 12:8c7394e2ae7f 852 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 853 */
AjK 12:8c7394e2ae7f 854 volatile int buffer_count[2];
AjK 12:8c7394e2ae7f 855
AjK 12:8c7394e2ae7f 856 /**
AjK 12:8c7394e2ae7f 857 * Buffer overflow.
AjK 12:8c7394e2ae7f 858 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 859 */
AjK 12:8c7394e2ae7f 860 volatile int buffer_overflow[2];
AjK 12:8c7394e2ae7f 861
AjK 12:8c7394e2ae7f 862 /**
AjK 12:8c7394e2ae7f 863 * Auto-detect character.
AjK 12:8c7394e2ae7f 864 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 865 */
AjK 12:8c7394e2ae7f 866 volatile char auto_detect_char;
AjK 12:8c7394e2ae7f 867
AjK 12:8c7394e2ae7f 868 /**
AjK 12:8c7394e2ae7f 869 * Callback system.
AjK 12:8c7394e2ae7f 870 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 871 */
AjK 18:21ef26402365 872 MODSERIAL_callback _isr[NumOfIrqTypes];
AjK 12:8c7394e2ae7f 873
AjK 12:8c7394e2ae7f 874 /**
AjK 12:8c7394e2ae7f 875 * TX Interrupt Service Routine.
AjK 12:8c7394e2ae7f 876 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 877 */
AjK 12:8c7394e2ae7f 878 void isr_tx(bool doCallback);
AjK 12:8c7394e2ae7f 879
AjK 12:8c7394e2ae7f 880 /**
AjK 12:8c7394e2ae7f 881 * TX Interrupt Service Routine stub version.
AjK 12:8c7394e2ae7f 882 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 883 */
AjK 12:8c7394e2ae7f 884 void isr_tx(void) { isr_tx(true); }
AjK 12:8c7394e2ae7f 885
AjK 12:8c7394e2ae7f 886
AjK 12:8c7394e2ae7f 887 /**
AjK 12:8c7394e2ae7f 888 * RX Interrupt Service Routine.
AjK 12:8c7394e2ae7f 889 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 890 */
AjK 12:8c7394e2ae7f 891 void isr_rx(void);
AjK 12:8c7394e2ae7f 892
AjK 12:8c7394e2ae7f 893 /**
AjK 12:8c7394e2ae7f 894 * Disable the interrupts for this Uart.
AjK 12:8c7394e2ae7f 895 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 896 */
AjK 12:8c7394e2ae7f 897 void disableIrq(void);
AjK 12:8c7394e2ae7f 898
AjK 12:8c7394e2ae7f 899 /**
AjK 12:8c7394e2ae7f 900 * Enable the interrupts for this Uart.
AjK 12:8c7394e2ae7f 901 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 902 */
AjK 12:8c7394e2ae7f 903 void enableIrq(void);
AjK 18:21ef26402365 904
AjK 12:8c7394e2ae7f 905 /**
AjK 12:8c7394e2ae7f 906 * Get a character from the RX buffer
AjK 12:8c7394e2ae7f 907 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 908 * @param bool True to block (wait for input)
AjK 12:8c7394e2ae7f 909 * @return A byte from the buffer.
AjK 12:8c7394e2ae7f 910 */
AjK 12:8c7394e2ae7f 911 int __getc(bool);
AjK 12:8c7394e2ae7f 912
AjK 12:8c7394e2ae7f 913 /**
AjK 12:8c7394e2ae7f 914 * Put a character from the TX buffer
AjK 12:8c7394e2ae7f 915 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 916 * @param bool True to block (wait for space in the TX buffer if full)
AjK 12:8c7394e2ae7f 917 * @return 0 on success
AjK 12:8c7394e2ae7f 918 */
AjK 12:8c7394e2ae7f 919 int __putc(int c, bool);
AjK 12:8c7394e2ae7f 920
AjK 12:8c7394e2ae7f 921 /**
AjK 12:8c7394e2ae7f 922 * Function: _putc
AjK 12:8c7394e2ae7f 923 * Overloaded virtual function.
AjK 12:8c7394e2ae7f 924 */
AjK 12:8c7394e2ae7f 925 virtual int _putc(int c) { return __putc(c, true); }
AjK 12:8c7394e2ae7f 926
AjK 12:8c7394e2ae7f 927 /**
AjK 12:8c7394e2ae7f 928 * Function: _getc
AjK 12:8c7394e2ae7f 929 * Overloaded virtual function.
AjK 12:8c7394e2ae7f 930 */
AjK 12:8c7394e2ae7f 931 virtual int _getc() { return __getc(true); }
AjK 12:8c7394e2ae7f 932
AjK 12:8c7394e2ae7f 933 /**
AjK 12:8c7394e2ae7f 934 * Function: init
AjK 12:8c7394e2ae7f 935 * Initialize the MODSERIAL object
AjK 12:8c7394e2ae7f 936 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 937 */
AjK 12:8c7394e2ae7f 938 void init(int txSize, int rxSize);
AjK 12:8c7394e2ae7f 939
AjK 12:8c7394e2ae7f 940 /**
AjK 12:8c7394e2ae7f 941 * Function: flushBuffer
AjK 12:8c7394e2ae7f 942 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 943 */
AjK 12:8c7394e2ae7f 944 void flushBuffer(IrqType type);
AjK 12:8c7394e2ae7f 945
AjK 12:8c7394e2ae7f 946 /**
AjK 12:8c7394e2ae7f 947 * Function: resizeBuffer
AjK 12:8c7394e2ae7f 948 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 949 */
AjK 12:8c7394e2ae7f 950 int resizeBuffer(int size, IrqType type = RxIrq, bool memory_check = true);
AjK 12:8c7394e2ae7f 951
AjK 12:8c7394e2ae7f 952 /**
AjK 12:8c7394e2ae7f 953 * Function: downSizeBuffer
AjK 12:8c7394e2ae7f 954 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 955 */
AjK 12:8c7394e2ae7f 956 int downSizeBuffer(int size, IrqType type, bool memory_check);
AjK 12:8c7394e2ae7f 957
AjK 12:8c7394e2ae7f 958 /**
AjK 12:8c7394e2ae7f 959 * Function: upSizeBuffer
AjK 12:8c7394e2ae7f 960 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 961 */
AjK 12:8c7394e2ae7f 962 int upSizeBuffer(int size, IrqType type, bool memory_check);
AjK 12:8c7394e2ae7f 963
AjK 12:8c7394e2ae7f 964 /*
AjK 12:8c7394e2ae7f 965 * If MODDMA is available the compile in code to handle sending
AjK 12:8c7394e2ae7f 966 * an arbitary char buffer. Note, the parts before teh #ifdef
AjK 12:8c7394e2ae7f 967 * are declared so that MODSERIAL can access then even if MODDMA
AjK 12:8c7394e2ae7f 968 * isn't avaiable. Since MODDMA.h is only available at this point
AjK 12:8c7394e2ae7f 969 * all DMA functionality must be declared inline in the class
AjK 12:8c7394e2ae7f 970 * definition.
AjK 12:8c7394e2ae7f 971 */
AjK 12:8c7394e2ae7f 972 public:
AjK 12:8c7394e2ae7f 973
AjK 12:8c7394e2ae7f 974 int dmaSendChannel;
AjK 12:8c7394e2ae7f 975 void *moddma_p;
AjK 12:8c7394e2ae7f 976
AjK 12:8c7394e2ae7f 977 #ifdef MODDMA_H
AjK 12:8c7394e2ae7f 978
AjK 17:6c9b57c14868 979 MODDMA_Config *config;
AjK 17:6c9b57c14868 980
AjK 12:8c7394e2ae7f 981 /**
AjK 12:8c7394e2ae7f 982 * Set the "void pointer" moddma_p to be a pointer to a
AjK 12:8c7394e2ae7f 983 * MODDMA controller class instance. Used to manage the
AjK 12:8c7394e2ae7f 984 * data transfer of DMA configurations.
AjK 12:8c7394e2ae7f 985 *
AjK 12:8c7394e2ae7f 986 * @ingroup API
AjK 12:8c7394e2ae7f 987 * @param p A pointer to "the" instance of MODDMA.
AjK 12:8c7394e2ae7f 988 */
AjK 12:8c7394e2ae7f 989 void MODDMA(MODDMA *p) { moddma_p = p; }
AjK 12:8c7394e2ae7f 990
AjK 12:8c7394e2ae7f 991 /**
AjK 12:8c7394e2ae7f 992 * Send a char buffer to the Uarts TX system
AjK 12:8c7394e2ae7f 993 * using DMA. This blocks regular library
AjK 12:8c7394e2ae7f 994 * sending.
AjK 12:8c7394e2ae7f 995 *
AjK 12:8c7394e2ae7f 996 * @param buffer A char buffer of bytes to send.
AjK 12:8c7394e2ae7f 997 * @param len The length of the buffer to send.
AjK 12:8c7394e2ae7f 998 * @param dmaChannel The DMA channel to use, defaults to 7
AjK 12:8c7394e2ae7f 999 * @return MODDMA::Status MODDMA::ok if all went ok
AjK 12:8c7394e2ae7f 1000 */
AjK 12:8c7394e2ae7f 1001 int dmaSend(char *buffer, int len, int dmaChannel = 7)
AjK 12:8c7394e2ae7f 1002 {
AjK 12:8c7394e2ae7f 1003 if (moddma_p == (void *)NULL) return -2;
AjK 12:8c7394e2ae7f 1004 class MODDMA *dma = (class MODDMA *)moddma_p;
AjK 12:8c7394e2ae7f 1005
AjK 12:8c7394e2ae7f 1006 dmaSendChannel = dmaChannel & 0x7;
AjK 12:8c7394e2ae7f 1007
AjK 12:8c7394e2ae7f 1008 uint32_t conn = MODDMA::UART0_Tx;
AjK 12:8c7394e2ae7f 1009 switch(_uidx) {
AjK 12:8c7394e2ae7f 1010 case 0: conn = MODDMA::UART0_Tx; break;
AjK 12:8c7394e2ae7f 1011 case 1: conn = MODDMA::UART1_Tx; break;
AjK 12:8c7394e2ae7f 1012 case 2: conn = MODDMA::UART2_Tx; break;
AjK 12:8c7394e2ae7f 1013 case 3: conn = MODDMA::UART3_Tx; break;
AjK 12:8c7394e2ae7f 1014 }
AjK 12:8c7394e2ae7f 1015
AjK 17:6c9b57c14868 1016 config = new MODDMA_Config;
AjK 12:8c7394e2ae7f 1017 config
AjK 12:8c7394e2ae7f 1018 ->channelNum ( (MODDMA::CHANNELS)(dmaSendChannel & 0x7) )
AjK 12:8c7394e2ae7f 1019 ->srcMemAddr ( (uint32_t) buffer )
AjK 12:8c7394e2ae7f 1020 ->transferSize ( len )
AjK 12:8c7394e2ae7f 1021 ->transferType ( MODDMA::m2p )
AjK 12:8c7394e2ae7f 1022 ->dstConn ( conn )
AjK 12:8c7394e2ae7f 1023 ->attach_tc ( this, &MODSERIAL::dmaSendCallback )
AjK 12:8c7394e2ae7f 1024 ->attach_err ( this, &MODSERIAL::dmaSendCallback )
AjK 12:8c7394e2ae7f 1025 ; // config end
AjK 12:8c7394e2ae7f 1026
AjK 12:8c7394e2ae7f 1027 // Setup the configuration.
AjK 17:6c9b57c14868 1028 if (dma->Setup(config) == 0) {
AjK 12:8c7394e2ae7f 1029 return -1;
AjK 12:8c7394e2ae7f 1030 }
AjK 12:8c7394e2ae7f 1031
AjK 12:8c7394e2ae7f 1032 //dma.Enable( MODDMA::Channel_0 );
AjK 12:8c7394e2ae7f 1033 dma->Enable( config->channelNum() );
AjK 12:8c7394e2ae7f 1034 return MODDMA::Ok;
AjK 12:8c7394e2ae7f 1035 }
AjK 12:8c7394e2ae7f 1036
AjK 12:8c7394e2ae7f 1037 /**
AjK 12:8c7394e2ae7f 1038 * Attach a callback to the DMA completion.
AjK 12:8c7394e2ae7f 1039 *
AjK 12:8c7394e2ae7f 1040 * @ingroup API
AjK 12:8c7394e2ae7f 1041 * @param fptr A function pointer to call
AjK 12:8c7394e2ae7f 1042 * @return this
AjK 12:8c7394e2ae7f 1043 */
AjK 18:21ef26402365 1044 void attach_dmaSendComplete(void (*fptr)(MODSERIAL_IRQ_INFO *)) {
AjK 12:8c7394e2ae7f 1045 _isrDmaSendComplete.attach(fptr);
AjK 12:8c7394e2ae7f 1046 }
AjK 12:8c7394e2ae7f 1047
AjK 12:8c7394e2ae7f 1048 /**
AjK 12:8c7394e2ae7f 1049 * Attach a callback to the DMA completion.
AjK 12:8c7394e2ae7f 1050 *
AjK 12:8c7394e2ae7f 1051 * @ingroup API
AjK 12:8c7394e2ae7f 1052 * @param tptr A template pointer to the calling object
AjK 12:8c7394e2ae7f 1053 * @param mptr A method pointer within the object to call.
AjK 12:8c7394e2ae7f 1054 * @return this
AjK 12:8c7394e2ae7f 1055 */
AjK 12:8c7394e2ae7f 1056 template<typename T>
AjK 18:21ef26402365 1057 void attach_dmaSendComplete(T* tptr, void (T::*mptr)(MODSERIAL_IRQ_INFO *)) {
AjK 12:8c7394e2ae7f 1058 if((mptr != NULL) && (tptr != NULL)) {
AjK 12:8c7394e2ae7f 1059 _isrDmaSendComplete.attach(tptr, mptr);
AjK 12:8c7394e2ae7f 1060 }
AjK 12:8c7394e2ae7f 1061 }
AjK 12:8c7394e2ae7f 1062
AjK 18:21ef26402365 1063 MODSERIAL_callback _isrDmaSendComplete;
AjK 12:8c7394e2ae7f 1064
AjK 12:8c7394e2ae7f 1065 protected:
AjK 12:8c7394e2ae7f 1066 /**
AjK 12:8c7394e2ae7f 1067 * Callback for dmaSend().
AjK 12:8c7394e2ae7f 1068 */
AjK 12:8c7394e2ae7f 1069 void dmaSendCallback(void)
AjK 12:8c7394e2ae7f 1070 {
AjK 12:8c7394e2ae7f 1071 if (moddma_p == (void *)NULL) return;
AjK 12:8c7394e2ae7f 1072 class MODDMA *dma = (class MODDMA *)moddma_p;
AjK 12:8c7394e2ae7f 1073
AjK 12:8c7394e2ae7f 1074 MODDMA_Config *config = dma->getConfig();
AjK 12:8c7394e2ae7f 1075 dma->haltAndWaitChannelComplete( (MODDMA::CHANNELS)config->channelNum());
AjK 12:8c7394e2ae7f 1076 dma->Disable( (MODDMA::CHANNELS)config->channelNum() );
AjK 12:8c7394e2ae7f 1077 if (dma->irqType() == MODDMA::TcIrq) dma->clearTcIrq();
AjK 12:8c7394e2ae7f 1078 if (dma->irqType() == MODDMA::ErrIrq) dma->clearErrIrq();
AjK 12:8c7394e2ae7f 1079 dmaSendChannel = -1;
AjK 18:21ef26402365 1080 _isrDmaSendComplete.call(&this->callbackInfo);
AjK 17:6c9b57c14868 1081 delete(config);
AjK 12:8c7394e2ae7f 1082 }
AjK 12:8c7394e2ae7f 1083
AjK 12:8c7394e2ae7f 1084 #endif // MODDMA_H
AjK 12:8c7394e2ae7f 1085
AjK 12:8c7394e2ae7f 1086 };
AjK 12:8c7394e2ae7f 1087
AjK 12:8c7394e2ae7f 1088 }; // namespace AjK ends
AjK 12:8c7394e2ae7f 1089
AjK 12:8c7394e2ae7f 1090 using namespace AjK;
AjK 12:8c7394e2ae7f 1091
AjK 12:8c7394e2ae7f 1092 #endif