ethan hong / MODSERIAL

USBUART - IRQ

Dependents:   MPU9250AHRS_UBSUART-IRQ

Fork of MODSERIAL by Andy K

MODSERIAL.h@18:21ef26402365, 2011-04-21 (annotated)

Committer:
AjK
Date:
Thu Apr 21 09:20:41 2011 +0000
Revision:
18:21ef26402365
Parent:
17:6c9b57c14868
Child:
19:a158936322cc
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 18:21ef26402365 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 12:8c7394e2ae7f 181 * @see example.cpp
AjK 12:8c7394e2ae7f 182 * @see API
AjK 12:8c7394e2ae7f 183 *
AjK 12:8c7394e2ae7f 184 * <b>MODSERIAL</b> extends the Mbed library <a href="/handbook/Serial">Serial</a> to provide fully buffered
AjK 12:8c7394e2ae7f 185 * TX and RX streams. Buffer length is fully customisable.
AjK 12:8c7394e2ae7f 186 *
AjK 12:8c7394e2ae7f 187 * Before using MODSERIAL users should be familar with Mbed's standard <a href="/handbook/Serial">Serial</a>
AjK 12:8c7394e2ae7f 188 * library object. MODSERIAL is a direct "drop in" replacement for <a href="/handbook/Serial">Serial</a>. Where
AjK 12:8c7394e2ae7f 189 * previously Serial was used, MODSERIAL can be used as adirect replacement instantly offering standard
AjK 12:8c7394e2ae7f 190 * TX and RX buffering. By default, both TX and RX buffers are 256 bytes in length.
AjK 12:8c7394e2ae7f 191 *
AjK 12:8c7394e2ae7f 192 * @image html /media/uploads/mbedofficial/serial_interfaces.png
AjK 12:8c7394e2ae7f 193 *
AjK 12:8c7394e2ae7f 194 * Standard example:
AjK 12:8c7394e2ae7f 195 * @code
AjK 12:8c7394e2ae7f 196 * #include "mbed.h"
AjK 12:8c7394e2ae7f 197 * #include "MODSERIAL.h"
AjK 12:8c7394e2ae7f 198 *
AjK 12:8c7394e2ae7f 199 * MODSERIAL pc(USBTX, USBRX); // tx, rx
AjK 12:8c7394e2ae7f 200 *
AjK 12:8c7394e2ae7f 201 * int main() {
AjK 12:8c7394e2ae7f 202 * pc.printf("Hello World!");
AjK 12:8c7394e2ae7f 203 * while(1) {
AjK 12:8c7394e2ae7f 204 * pc.putc(pc.getc() + 1);
AjK 12:8c7394e2ae7f 205 * }
AjK 12:8c7394e2ae7f 206 * }
AjK 12:8c7394e2ae7f 207 * @endcode
AjK 12:8c7394e2ae7f 208 *
AjK 12:8c7394e2ae7f 209 * Example with alternate buffer length:
AjK 12:8c7394e2ae7f 210 * @code
AjK 12:8c7394e2ae7f 211 * #include "mbed.h"
AjK 12:8c7394e2ae7f 212 * #include "MODSERIAL.h"
AjK 12:8c7394e2ae7f 213 *
AjK 12:8c7394e2ae7f 214 * // Make TX and RX buffers 512byes in length
AjK 12:8c7394e2ae7f 215 * MODSERIAL pc(USBTX, USBRX, 512); // tx, rx
AjK 12:8c7394e2ae7f 216 *
AjK 12:8c7394e2ae7f 217 * int main() {
AjK 12:8c7394e2ae7f 218 * pc.printf("Hello World!");
AjK 12:8c7394e2ae7f 219 * while(1) {
AjK 12:8c7394e2ae7f 220 * pc.putc(pc.getc() + 1);
AjK 12:8c7394e2ae7f 221 * }
AjK 12:8c7394e2ae7f 222 * }
AjK 12:8c7394e2ae7f 223 * @endcode
AjK 12:8c7394e2ae7f 224 *
AjK 12:8c7394e2ae7f 225 * Example with alternate buffer length:
AjK 12:8c7394e2ae7f 226 * @code
AjK 12:8c7394e2ae7f 227 * #include "mbed.h"
AjK 12:8c7394e2ae7f 228 * #include "MODSERIAL.h"
AjK 12:8c7394e2ae7f 229 *
AjK 12:8c7394e2ae7f 230 * // Make TX 1024bytes and RX 512byes in length
AjK 12:8c7394e2ae7f 231 * MODSERIAL pc(USBTX, USBRX, 1024, 512); // tx, rx
AjK 12:8c7394e2ae7f 232 *
AjK 12:8c7394e2ae7f 233 * int main() {
AjK 12:8c7394e2ae7f 234 * pc.printf("Hello World!");
AjK 12:8c7394e2ae7f 235 * while(1) {
AjK 12:8c7394e2ae7f 236 * pc.putc(pc.getc() + 1);
AjK 12:8c7394e2ae7f 237 * }
AjK 12:8c7394e2ae7f 238 * }
AjK 12:8c7394e2ae7f 239 * @endcode
AjK 12:8c7394e2ae7f 240 */
AjK 12:8c7394e2ae7f 241 class MODSERIAL : public Serial
AjK 12:8c7394e2ae7f 242 {
AjK 12:8c7394e2ae7f 243 public:
AjK 12:8c7394e2ae7f 244
AjK 18:21ef26402365 245 // Allow instances of MODSERIAL_IRQ_INFO to use protected properties and methods.
AjK 18:21ef26402365 246 friend class MODSERIAL_IRQ_INFO;
AjK 18:21ef26402365 247
AjK 12:8c7394e2ae7f 248 //! A copy of the Serial parity enum
AjK 12:8c7394e2ae7f 249 /** @see http://mbed.org/projects/libraries/api/mbed/trunk/Serial#Serial.format */
AjK 12:8c7394e2ae7f 250 enum Parity {
AjK 12:8c7394e2ae7f 251 None = 0
AjK 12:8c7394e2ae7f 252 , Odd
AjK 12:8c7394e2ae7f 253 , Even
AjK 12:8c7394e2ae7f 254 , Forced1
AjK 12:8c7394e2ae7f 255 , Forced0
AjK 12:8c7394e2ae7f 256 };
AjK 12:8c7394e2ae7f 257
AjK 12:8c7394e2ae7f 258 //! A copy of the Serial IrqType enum
AjK 12:8c7394e2ae7f 259 enum IrqType {
AjK 12:8c7394e2ae7f 260 RxIrq = 0
AjK 12:8c7394e2ae7f 261 , TxIrq
AjK 12:8c7394e2ae7f 262 , RxOvIrq
AjK 12:8c7394e2ae7f 263 , TxOvIrq
AjK 12:8c7394e2ae7f 264 , TxEmpty
AjK 12:8c7394e2ae7f 265 , RxAutoDetect
AjK 12:8c7394e2ae7f 266 , NumOfIrqTypes
AjK 12:8c7394e2ae7f 267 };
AjK 12:8c7394e2ae7f 268
AjK 12:8c7394e2ae7f 269 //! Non-blocking functions return code.
AjK 12:8c7394e2ae7f 270 enum Result {
AjK 12:8c7394e2ae7f 271 Ok = 0 /*!< Ok. */
AjK 12:8c7394e2ae7f 272 , NoMemory = -1 /*!< Memory allocation failed. */
AjK 12:8c7394e2ae7f 273 , NoChar = -1 /*!< No character in buffer. */
AjK 12:8c7394e2ae7f 274 , BufferOversize = -2 /*!< Oversized buffer. */
AjK 12:8c7394e2ae7f 275 };
AjK 12:8c7394e2ae7f 276
AjK 12:8c7394e2ae7f 277 /**
AjK 12:8c7394e2ae7f 278 * The MODSERIAL constructor is used to initialise the serial object.
AjK 12:8c7394e2ae7f 279 *
AjK 12:8c7394e2ae7f 280 * @param tx PinName of the TX pin.
AjK 12:8c7394e2ae7f 281 * @param rx PinName of the TX pin.
AjK 12:8c7394e2ae7f 282 * @param name An option name for RPC usage.
AjK 12:8c7394e2ae7f 283 */
AjK 12:8c7394e2ae7f 284 MODSERIAL(PinName tx, PinName rx, const char *name = NULL);
AjK 12:8c7394e2ae7f 285
AjK 12:8c7394e2ae7f 286 /**
AjK 12:8c7394e2ae7f 287 * The MODSERIAL constructor is used to initialise the serial object.
AjK 12:8c7394e2ae7f 288 *
AjK 12:8c7394e2ae7f 289 * @param tx PinName of the TX pin.
AjK 12:8c7394e2ae7f 290 * @param rx PinName of the TX pin.
AjK 12:8c7394e2ae7f 291 * @param bufferSize Integer of the TX and RX buffer sizes.
AjK 12:8c7394e2ae7f 292 * @param name An option name for RPC usage.
AjK 12:8c7394e2ae7f 293 */
AjK 12:8c7394e2ae7f 294 MODSERIAL(PinName tx, PinName rx, int bufferSize, const char *name = NULL);
AjK 12:8c7394e2ae7f 295
AjK 12:8c7394e2ae7f 296 /**
AjK 12:8c7394e2ae7f 297 * The MODSERIAL constructor is used to initialise the serial object.
AjK 12:8c7394e2ae7f 298 *
AjK 12:8c7394e2ae7f 299 * @param tx PinName of the TX pin.
AjK 12:8c7394e2ae7f 300 * @param rx PinName of the TX pin.
AjK 12:8c7394e2ae7f 301 * @param txBufferSize Integer of the TX buffer sizes.
AjK 12:8c7394e2ae7f 302 * @param rxBufferSize Integer of the RX buffer sizes.
AjK 12:8c7394e2ae7f 303 * @param name An option name for RPC usage.
AjK 12:8c7394e2ae7f 304 */
AjK 12:8c7394e2ae7f 305 MODSERIAL(PinName tx, PinName rx, int txBufferSize, int rxBufferSize, const char *name = NULL);
AjK 12:8c7394e2ae7f 306
AjK 12:8c7394e2ae7f 307 virtual ~MODSERIAL();
AjK 12:8c7394e2ae7f 308
AjK 12:8c7394e2ae7f 309 /**
AjK 12:8c7394e2ae7f 310 * Function: attach
AjK 12:8c7394e2ae7f 311 *
AjK 12:8c7394e2ae7f 312 * The Mbed standard <a href="/handbook/Serial">Serial</a> library object allows an interrupt callback
AjK 12:8c7394e2ae7f 313 * to be made when a byte is received by the TX or RX UART hardware. MODSERIAL traps these interrupts
AjK 12:8c7394e2ae7f 314 * to enable it's buffering system. However, after the byte has been received/sent under interrupt control,
AjK 12:8c7394e2ae7f 315 * MODSERIAL can callback a user function as a notification of the interrupt. Note, user code should not
AjK 12:8c7394e2ae7f 316 * directly interact with the Uart hardware, MODSERIAL does that, instead, MODSERIAL API functions should
AjK 12:8c7394e2ae7f 317 * be used.
AjK 12:8c7394e2ae7f 318 *
AjK 12:8c7394e2ae7f 319 * <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 320 * putc() will put the character directly into THR (the output holding register). If the TX FIFO is full and
AjK 12:8c7394e2ae7f 321 * cannot accept the character, it is placed into the TX output buffer. The TX interrupts are then enabled
AjK 12:8c7394e2ae7f 322 * so that when the TX FIFO empties, the TX buffer is then transferred to the THR FIFO. The TxIrq will ONLY
AjK 12:8c7394e2ae7f 323 * be activated when this transfer of a character from BUFFER to THR FIFO takes place. If your character
AjK 12:8c7394e2ae7f 324 * throughput is not high bandwidth, then the 16 byte TX FIFO may be enough and the TX output buffer may
AjK 12:8c7394e2ae7f 325 * never come into play.
AjK 12:8c7394e2ae7f 326 *
AjK 12:8c7394e2ae7f 327 * @code
AjK 12:8c7394e2ae7f 328 * #include "mbed.h"
AjK 12:8c7394e2ae7f 329 * #include "MODSERIAL.h"
AjK 12:8c7394e2ae7f 330 *
AjK 12:8c7394e2ae7f 331 * DigitalOut led1(LED1);
AjK 12:8c7394e2ae7f 332 * DigitalOut led2(LED2);
AjK 12:8c7394e2ae7f 333 * DigitalOut led3(LED3);
AjK 12:8c7394e2ae7f 334 *
AjK 12:8c7394e2ae7f 335 * // To test, connect p9 to p10 as a loopback.
AjK 12:8c7394e2ae7f 336 * MODSERIAL pc(p9, p10);
AjK 12:8c7394e2ae7f 337 *
AjK 12:8c7394e2ae7f 338 * // This function is called when a character goes into the TX buffer.
AjK 12:8c7394e2ae7f 339 * void txCallback(void) {
AjK 12:8c7394e2ae7f 340 * led2 = !led2;
AjK 12:8c7394e2ae7f 341 * }
AjK 12:8c7394e2ae7f 342 *
AjK 12:8c7394e2ae7f 343 * // This function is called when a character goes into the RX buffer.
AjK 12:8c7394e2ae7f 344 * void rxCallback(void) {
AjK 12:8c7394e2ae7f 345 * led3 = !led3;
AjK 12:8c7394e2ae7f 346 * }
AjK 12:8c7394e2ae7f 347 *
AjK 12:8c7394e2ae7f 348 * int main() {
AjK 12:8c7394e2ae7f 349 * pc.baud(115200);
AjK 12:8c7394e2ae7f 350 * pc.attach(&txCallback, MODSERIAL::TxIrq);
AjK 12:8c7394e2ae7f 351 * pc.attach(&rxCallback, MODSERIAL::RxIrq);
AjK 12:8c7394e2ae7f 352 *
AjK 12:8c7394e2ae7f 353 * while(1) {
AjK 12:8c7394e2ae7f 354 * led1 = !led1;
AjK 12:8c7394e2ae7f 355 * wait(0.5);
AjK 12:8c7394e2ae7f 356 * pc.putc('A');
AjK 12:8c7394e2ae7f 357 * wait(0.5);
AjK 12:8c7394e2ae7f 358 * }
AjK 12:8c7394e2ae7f 359 * ]
AjK 12:8c7394e2ae7f 360 * @endcode
AjK 12:8c7394e2ae7f 361 *
AjK 12:8c7394e2ae7f 362 * @ingroup API
AjK 12:8c7394e2ae7f 363 * @param fptr A pointer to a void function, or 0 to set as none
AjK 12:8c7394e2ae7f 364 * @param type Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty)
AjK 12:8c7394e2ae7f 365 */
AjK 18:21ef26402365 366 void attach(void (*fptr)(MODSERIAL_IRQ_INFO *), IrqType type = RxIrq) { _isr[type].attach(fptr); }
AjK 12:8c7394e2ae7f 367
AjK 12:8c7394e2ae7f 368 /**
AjK 12:8c7394e2ae7f 369 * Function: attach
AjK 12:8c7394e2ae7f 370 *
AjK 12:8c7394e2ae7f 371 * The Mbed standard <a href="/handbook/Serial">Serial</a> library object allows an interrupt callback
AjK 12:8c7394e2ae7f 372 * to be made when a byte is received by the TX or RX UART hardware. MODSERIAL traps these interrupts
AjK 12:8c7394e2ae7f 373 * to enable it's buffering system. However, after the byte has been received/sent under interrupt control,
AjK 12:8c7394e2ae7f 374 * MODSERIAL can callback a user function as a notification of the interrupt. Note, user code should not
AjK 12:8c7394e2ae7f 375 * directly interact with the Uart hardware, MODSERIAL does that, instead, MODSERIAL API functions should
AjK 12:8c7394e2ae7f 376 * be used.
AjK 12:8c7394e2ae7f 377 *
AjK 12:8c7394e2ae7f 378 * <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 379 * putc() will put the character directly into THR (the output holding register). If the TX FIFO is full and
AjK 12:8c7394e2ae7f 380 * cannot accept the character, it is placed into the TX output buffer. The TX interrupts are then enabled
AjK 12:8c7394e2ae7f 381 * so that when the TX FIFO empties, the TX buffer is then transferred to the THR FIFO. The TxIrq will ONLY
AjK 12:8c7394e2ae7f 382 * be activated when this transfer of a character from BUFFER to THR FIFO takes place. If your character
AjK 12:8c7394e2ae7f 383 * throughput is not high bandwidth, then the 16 byte TX FIFO may be enough and the TX output buffer may
AjK 12:8c7394e2ae7f 384 * never come into play.
AjK 12:8c7394e2ae7f 385 *
AjK 12:8c7394e2ae7f 386 * @code
AjK 12:8c7394e2ae7f 387 * #include "mbed.h"
AjK 12:8c7394e2ae7f 388 * #include "MODSERIAL.h"
AjK 12:8c7394e2ae7f 389 *
AjK 12:8c7394e2ae7f 390 * DigitalOut led1(LED1);
AjK 12:8c7394e2ae7f 391 * DigitalOut led2(LED2);
AjK 12:8c7394e2ae7f 392 * DigitalOut led3(LED3);
AjK 12:8c7394e2ae7f 393 *
AjK 12:8c7394e2ae7f 394 * // To test, connect p9 to p10 as a loopback.
AjK 12:8c7394e2ae7f 395 * MODSERIAL pc(p9, p10);
AjK 12:8c7394e2ae7f 396 *
AjK 12:8c7394e2ae7f 397 * class Foo {
AjK 12:8c7394e2ae7f 398 * public:
AjK 12:8c7394e2ae7f 399 * // This method is called when a character goes into the TX buffer.
AjK 12:8c7394e2ae7f 400 * void txCallback(void) { led2 = !led2; }
AjK 12:8c7394e2ae7f 401 *
AjK 12:8c7394e2ae7f 402 * // This method is called when a character goes into the RX buffer.
AjK 12:8c7394e2ae7f 403 * void rxCallback(void) { led3 = !led3; }
AjK 12:8c7394e2ae7f 404 * };
AjK 12:8c7394e2ae7f 405 *
AjK 12:8c7394e2ae7f 406 * Foo foo;
AjK 12:8c7394e2ae7f 407 *
AjK 12:8c7394e2ae7f 408 * int main() {
AjK 12:8c7394e2ae7f 409 * pc.baud(115200);
AjK 12:8c7394e2ae7f 410 * pc.attach(&foo, &Foo::txCallback, MODSERIAL::TxIrq);
AjK 12:8c7394e2ae7f 411 * pc.attach(&foo, &Foo::rxCallback, MODSERIAL::RxIrq);
AjK 12:8c7394e2ae7f 412 *
AjK 12:8c7394e2ae7f 413 * while(1) {
AjK 12:8c7394e2ae7f 414 * led1 = !led1;
AjK 12:8c7394e2ae7f 415 * wait(0.5);
AjK 12:8c7394e2ae7f 416 * pc.putc('A');
AjK 12:8c7394e2ae7f 417 * wait(0.5);
AjK 12:8c7394e2ae7f 418 * }
AjK 12:8c7394e2ae7f 419 * ]
AjK 12:8c7394e2ae7f 420 * @endcode
AjK 12:8c7394e2ae7f 421 *
AjK 12:8c7394e2ae7f 422 * @ingroup API
AjK 12:8c7394e2ae7f 423 * @param tptr A pointer to the object to call the member function on
AjK 12:8c7394e2ae7f 424 * @param mptr A pointer to the member function to be called
AjK 12:8c7394e2ae7f 425 * @param type Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty)
AjK 12:8c7394e2ae7f 426 */
AjK 12:8c7394e2ae7f 427 template<typename T>
AjK 18:21ef26402365 428 void attach(T* tptr, uint32_t (T::*mptr)(uint32_t), IrqType type = RxIrq) {
AjK 18:21ef26402365 429 if((mptr != 0) && (tptr != 0)) {
AjK 12:8c7394e2ae7f 430 _isr[type].attach(tptr, mptr);
AjK 12:8c7394e2ae7f 431 }
AjK 12:8c7394e2ae7f 432 }
AjK 12:8c7394e2ae7f 433
AjK 12:8c7394e2ae7f 434 /**
AjK 12:8c7394e2ae7f 435 * @see attach
AjK 12:8c7394e2ae7f 436 * @ingroup API
AjK 12:8c7394e2ae7f 437 */
AjK 18:21ef26402365 438 void connect(void (*fptr)(MODSERIAL_IRQ_INFO *), IrqType type = RxIrq) { _isr[RxIrq].attach(fptr); }
AjK 12:8c7394e2ae7f 439
AjK 12:8c7394e2ae7f 440 /**
AjK 12:8c7394e2ae7f 441 * @see attach
AjK 12:8c7394e2ae7f 442 * @ingroup API
AjK 12:8c7394e2ae7f 443 */
AjK 12:8c7394e2ae7f 444 template<typename T>
AjK 18:21ef26402365 445 void connect(T* tptr, void (T::*mptr)(MODSERIAL_IRQ_INFO *), IrqType type = RxIrq) {
AjK 18:21ef26402365 446 if((mptr != 0) && (tptr != 0)) {
AjK 12:8c7394e2ae7f 447 _isr[type].attach(tptr, mptr);
AjK 12:8c7394e2ae7f 448 }
AjK 12:8c7394e2ae7f 449 }
AjK 12:8c7394e2ae7f 450
AjK 12:8c7394e2ae7f 451 /**
AjK 12:8c7394e2ae7f 452 * Function: writeable
AjK 12:8c7394e2ae7f 453 *
AjK 12:8c7394e2ae7f 454 * Determine if there is space available to write a byte
AjK 12:8c7394e2ae7f 455 *
AjK 12:8c7394e2ae7f 456 * @ingroup API
AjK 12:8c7394e2ae7f 457 * @return 1 if there is space to write a character, else 0
AjK 12:8c7394e2ae7f 458 */
AjK 12:8c7394e2ae7f 459 int writeable() { return txBufferFull() ? 0 : 1; }
AjK 12:8c7394e2ae7f 460
AjK 12:8c7394e2ae7f 461 /**
AjK 12:8c7394e2ae7f 462 * Function: readable
AjK 12:8c7394e2ae7f 463 *
AjK 12:8c7394e2ae7f 464 * Determine if there is a byte available to read
AjK 12:8c7394e2ae7f 465 *
AjK 12:8c7394e2ae7f 466 * @ingroup API
AjK 12:8c7394e2ae7f 467 * @return 1 if there is a character available to read, else 0
AjK 12:8c7394e2ae7f 468 */
AjK 12:8c7394e2ae7f 469 int readable() { return rxBufferEmpty() ? 0 : 1; }
AjK 12:8c7394e2ae7f 470
AjK 12:8c7394e2ae7f 471 /**
AjK 12:8c7394e2ae7f 472 * Function: txBufferSane
AjK 12:8c7394e2ae7f 473 *
AjK 12:8c7394e2ae7f 474 * Determine if the TX buffer has been initialized.
AjK 12:8c7394e2ae7f 475 *
AjK 12:8c7394e2ae7f 476 * @ingroup API
AjK 12:8c7394e2ae7f 477 * @return true if the buffer is initialized, else false
AjK 12:8c7394e2ae7f 478 */
AjK 12:8c7394e2ae7f 479 bool txBufferSane(void) { return buffer[TxIrq] != (char *)NULL ? true : false; }
AjK 12:8c7394e2ae7f 480
AjK 12:8c7394e2ae7f 481 /**
AjK 12:8c7394e2ae7f 482 * Function: rxBufferSane
AjK 12:8c7394e2ae7f 483 *
AjK 12:8c7394e2ae7f 484 * Determine if the RX buffer has been initialized.
AjK 12:8c7394e2ae7f 485 *
AjK 12:8c7394e2ae7f 486 * @ingroup API
AjK 12:8c7394e2ae7f 487 * @return true if the buffer is initialized, else false
AjK 12:8c7394e2ae7f 488 */
AjK 12:8c7394e2ae7f 489 bool rxBufferSane(void) { return buffer[TxIrq] != (char *)NULL ? true : false; }
AjK 12:8c7394e2ae7f 490
AjK 12:8c7394e2ae7f 491 /**
AjK 12:8c7394e2ae7f 492 * Function: txBufferGetCount
AjK 12:8c7394e2ae7f 493 *
AjK 12:8c7394e2ae7f 494 * Returns how many bytes are in the TX buffer
AjK 12:8c7394e2ae7f 495 *
AjK 12:8c7394e2ae7f 496 * @ingroup API
AjK 12:8c7394e2ae7f 497 * @return The number of bytes in the TX buffer
AjK 12:8c7394e2ae7f 498 */
AjK 12:8c7394e2ae7f 499 int txBufferGetCount(void) { return buffer_count[TxIrq]; }
AjK 12:8c7394e2ae7f 500
AjK 12:8c7394e2ae7f 501 /**
AjK 12:8c7394e2ae7f 502 * Function: rxBufferGetCount
AjK 12:8c7394e2ae7f 503 *
AjK 12:8c7394e2ae7f 504 * Returns how many bytes are in the RX buffer
AjK 12:8c7394e2ae7f 505 *
AjK 12:8c7394e2ae7f 506 * @ingroup API
AjK 12:8c7394e2ae7f 507 * @return The number of bytes in the RX buffer
AjK 12:8c7394e2ae7f 508 */
AjK 12:8c7394e2ae7f 509 int rxBufferGetCount(void) { return buffer_count[RxIrq]; }
AjK 12:8c7394e2ae7f 510
AjK 12:8c7394e2ae7f 511 /**
AjK 12:8c7394e2ae7f 512 * Function: txBufferGetSize
AjK 12:8c7394e2ae7f 513 *
AjK 12:8c7394e2ae7f 514 * Returns the current size of the TX buffer
AjK 12:8c7394e2ae7f 515 *
AjK 12:8c7394e2ae7f 516 * @ingroup API
AjK 12:8c7394e2ae7f 517 * @return The length iof the TX buffer in bytes
AjK 12:8c7394e2ae7f 518 */
AjK 12:8c7394e2ae7f 519 int txBufferGetSize(int size) { return buffer_size[TxIrq]; }
AjK 12:8c7394e2ae7f 520
AjK 12:8c7394e2ae7f 521 /**
AjK 12:8c7394e2ae7f 522 * Function: rxBufferGetSize
AjK 12:8c7394e2ae7f 523 *
AjK 12:8c7394e2ae7f 524 * Returns the current size of the RX buffer
AjK 12:8c7394e2ae7f 525 *
AjK 12:8c7394e2ae7f 526 * @ingroup API
AjK 12:8c7394e2ae7f 527 * @return The length iof the RX buffer in bytes
AjK 12:8c7394e2ae7f 528 */
AjK 12:8c7394e2ae7f 529 int rxBufferGetSize(int size) { return buffer_size[RxIrq]; }
AjK 12:8c7394e2ae7f 530
AjK 12:8c7394e2ae7f 531 /**
AjK 12:8c7394e2ae7f 532 * Function: txBufferFull
AjK 12:8c7394e2ae7f 533 *
AjK 12:8c7394e2ae7f 534 * Is the TX buffer full?
AjK 12:8c7394e2ae7f 535 *
AjK 12:8c7394e2ae7f 536 * @ingroup API
AjK 12:8c7394e2ae7f 537 * @return true if the TX buffer is full, otherwise false
AjK 12:8c7394e2ae7f 538 */
AjK 12:8c7394e2ae7f 539 bool txBufferFull(void);
AjK 12:8c7394e2ae7f 540
AjK 12:8c7394e2ae7f 541 /**
AjK 12:8c7394e2ae7f 542 * Function: rxBufferFull
AjK 12:8c7394e2ae7f 543 *
AjK 12:8c7394e2ae7f 544 * Is the RX buffer full?
AjK 12:8c7394e2ae7f 545 *
AjK 12:8c7394e2ae7f 546 * @ingroup API
AjK 12:8c7394e2ae7f 547 * @return true if the RX buffer is full, otherwise false
AjK 12:8c7394e2ae7f 548 */
AjK 12:8c7394e2ae7f 549 bool rxBufferFull(void);
AjK 12:8c7394e2ae7f 550
AjK 12:8c7394e2ae7f 551 /**
AjK 12:8c7394e2ae7f 552 * Function: txBufferEmpty
AjK 12:8c7394e2ae7f 553 *
AjK 12:8c7394e2ae7f 554 * Is the TX buffer empty?
AjK 12:8c7394e2ae7f 555 *
AjK 12:8c7394e2ae7f 556 * @ingroup API
AjK 12:8c7394e2ae7f 557 * @return true if the TX buffer is empty, otherwise false
AjK 12:8c7394e2ae7f 558 */
AjK 12:8c7394e2ae7f 559 bool txBufferEmpty(void);
AjK 12:8c7394e2ae7f 560
AjK 12:8c7394e2ae7f 561 /**
AjK 12:8c7394e2ae7f 562 * Function: rxBufferEmpty
AjK 12:8c7394e2ae7f 563 *
AjK 12:8c7394e2ae7f 564 * Is the RX buffer empty?
AjK 12:8c7394e2ae7f 565 *
AjK 12:8c7394e2ae7f 566 * @ingroup API
AjK 12:8c7394e2ae7f 567 * @return true if the RX buffer is empty, otherwise false
AjK 12:8c7394e2ae7f 568 */
AjK 12:8c7394e2ae7f 569 bool rxBufferEmpty(void);
AjK 12:8c7394e2ae7f 570
AjK 12:8c7394e2ae7f 571 /**
AjK 12:8c7394e2ae7f 572 * Function: txBufferSetSize
AjK 12:8c7394e2ae7f 573 *
AjK 12:8c7394e2ae7f 574 * Change the TX buffer size.
AjK 12:8c7394e2ae7f 575 *
AjK 12:8c7394e2ae7f 576 * @see Result
AjK 12:8c7394e2ae7f 577 * @ingroup API
AjK 12:8c7394e2ae7f 578 * @param size The new TX buffer size in bytes.
AjK 12:8c7394e2ae7f 579 * @param m Perform a memory sanity check. Errs the Mbed if memory alloc fails.
AjK 12:8c7394e2ae7f 580 * @return Result Ok on success.
AjK 12:8c7394e2ae7f 581 */
AjK 12:8c7394e2ae7f 582 int txBufferSetSize(int size, bool m) { return resizeBuffer(size, TxIrq, m); }
AjK 12:8c7394e2ae7f 583
AjK 12:8c7394e2ae7f 584 /**
AjK 12:8c7394e2ae7f 585 * Function: rxBufferSetSize
AjK 12:8c7394e2ae7f 586 *
AjK 12:8c7394e2ae7f 587 * Change the RX buffer size.
AjK 12:8c7394e2ae7f 588 *
AjK 12:8c7394e2ae7f 589 * @see Result
AjK 12:8c7394e2ae7f 590 * @ingroup API
AjK 12:8c7394e2ae7f 591 * @param size The new RX buffer size in bytes.
AjK 12:8c7394e2ae7f 592 * @param m Perform a memory sanity check. Errs the Mbed if memory alloc fails.
AjK 12:8c7394e2ae7f 593 * @return Result Ok on success.
AjK 12:8c7394e2ae7f 594 */
AjK 12:8c7394e2ae7f 595 int rxBufferSetSize(int size, bool m) { return resizeBuffer(size, RxIrq, m); }
AjK 12:8c7394e2ae7f 596
AjK 12:8c7394e2ae7f 597 /**
AjK 12:8c7394e2ae7f 598 * Function: txBufferSetSize
AjK 12:8c7394e2ae7f 599 *
AjK 12:8c7394e2ae7f 600 * Change the TX buffer size.
AjK 12:8c7394e2ae7f 601 * Always performs a memory sanity check, halting the Mbed on failure.
AjK 12:8c7394e2ae7f 602 *
AjK 12:8c7394e2ae7f 603 * @see Result
AjK 12:8c7394e2ae7f 604 * @ingroup API
AjK 12:8c7394e2ae7f 605 * @param size The new TX buffer size in bytes.
AjK 12:8c7394e2ae7f 606 * @return Result Ok on success.
AjK 12:8c7394e2ae7f 607 */
AjK 12:8c7394e2ae7f 608 int txBufferSetSize(int size) { return resizeBuffer(size, TxIrq, true); }
AjK 12:8c7394e2ae7f 609
AjK 12:8c7394e2ae7f 610 /**
AjK 12:8c7394e2ae7f 611 * Function: rxBufferSetSize
AjK 12:8c7394e2ae7f 612 *
AjK 12:8c7394e2ae7f 613 * Change the RX buffer size.
AjK 12:8c7394e2ae7f 614 * Always performs a memory sanity check, halting the Mbed on failure.
AjK 12:8c7394e2ae7f 615 *
AjK 12:8c7394e2ae7f 616 * @see Result
AjK 12:8c7394e2ae7f 617 * @ingroup API
AjK 12:8c7394e2ae7f 618 * @param size The new RX buffer size in bytes.
AjK 12:8c7394e2ae7f 619 * @return Result Ok on success.
AjK 12:8c7394e2ae7f 620 */
AjK 12:8c7394e2ae7f 621 int rxBufferSetSize(int size) { return resizeBuffer(size, RxIrq, true); }
AjK 12:8c7394e2ae7f 622
AjK 12:8c7394e2ae7f 623 /**
AjK 12:8c7394e2ae7f 624 * Function: txBufferFlush
AjK 12:8c7394e2ae7f 625 *
AjK 12:8c7394e2ae7f 626 * Remove all bytes from the TX buffer.
AjK 12:8c7394e2ae7f 627 * @ingroup API
AjK 12:8c7394e2ae7f 628 */
AjK 12:8c7394e2ae7f 629 void txBufferFlush(void) { flushBuffer(TxIrq); }
AjK 12:8c7394e2ae7f 630
AjK 12:8c7394e2ae7f 631 /**
AjK 12:8c7394e2ae7f 632 * Function: rxBufferFlush
AjK 12:8c7394e2ae7f 633 *
AjK 12:8c7394e2ae7f 634 * Remove all bytes from the RX buffer.
AjK 12:8c7394e2ae7f 635 * @ingroup API
AjK 12:8c7394e2ae7f 636 */
AjK 12:8c7394e2ae7f 637 void rxBufferFlush(void) { flushBuffer(RxIrq); }
AjK 12:8c7394e2ae7f 638
AjK 12:8c7394e2ae7f 639 /**
AjK 12:8c7394e2ae7f 640 * Function: getcNb
AjK 12:8c7394e2ae7f 641 *
AjK 12:8c7394e2ae7f 642 * Like getc() but is non-blocking. If no bytes are in the RX buffer this
AjK 12:8c7394e2ae7f 643 * function returns Result::NoChar (-1)
AjK 12:8c7394e2ae7f 644 *
AjK 12:8c7394e2ae7f 645 * @ingroup API
AjK 12:8c7394e2ae7f 646 * @return A byte from the RX buffer or Result::NoChar (-1) if bufer empty.
AjK 12:8c7394e2ae7f 647 */
AjK 12:8c7394e2ae7f 648 int getcNb() { return __getc(false); }
AjK 12:8c7394e2ae7f 649
AjK 12:8c7394e2ae7f 650 /**
AjK 12:8c7394e2ae7f 651 * Function: getc
AjK 12:8c7394e2ae7f 652 *
AjK 12:8c7394e2ae7f 653 * Overloaded version of Serial::getc()
AjK 12:8c7394e2ae7f 654 *
AjK 12:8c7394e2ae7f 655 * This function blocks (if the RX buffer is empty the function will wait for a
AjK 12:8c7394e2ae7f 656 * character to arrive and then return that character).
AjK 12:8c7394e2ae7f 657 *
AjK 12:8c7394e2ae7f 658 * @ingroup API
AjK 12:8c7394e2ae7f 659 * @return A byte from the RX buffer
AjK 12:8c7394e2ae7f 660 */
AjK 12:8c7394e2ae7f 661 int getc() { return __getc(true); }
AjK 12:8c7394e2ae7f 662
AjK 12:8c7394e2ae7f 663 /**
AjK 12:8c7394e2ae7f 664 * Function: txGetLastChar
AjK 12:8c7394e2ae7f 665 *
AjK 12:8c7394e2ae7f 666 * Rteurn the last byte to pass through the TX interrupt handler.
AjK 12:8c7394e2ae7f 667 *
AjK 12:8c7394e2ae7f 668 * @ingroup MISC
AjK 12:8c7394e2ae7f 669 * @return The byte
AjK 12:8c7394e2ae7f 670 */
AjK 12:8c7394e2ae7f 671 char txGetLastChar(void) { return txc; }
AjK 12:8c7394e2ae7f 672
AjK 12:8c7394e2ae7f 673 /**
AjK 12:8c7394e2ae7f 674 * Function: rxGetLastChar
AjK 12:8c7394e2ae7f 675 *
AjK 12:8c7394e2ae7f 676 * Return the last byte to pass through the RX interrupt handler.
AjK 12:8c7394e2ae7f 677 *
AjK 12:8c7394e2ae7f 678 * @ingroup MISC
AjK 12:8c7394e2ae7f 679 * @return The byte
AjK 12:8c7394e2ae7f 680 */
AjK 12:8c7394e2ae7f 681 char rxGetLastChar(void) { return rxc; }
AjK 12:8c7394e2ae7f 682
AjK 12:8c7394e2ae7f 683 /**
AjK 12:8c7394e2ae7f 684 * Function: txIsBusy
AjK 12:8c7394e2ae7f 685 *
AjK 12:8c7394e2ae7f 686 * If the Uart is still actively sending characters this
AjK 12:8c7394e2ae7f 687 * function will return true.
AjK 12:8c7394e2ae7f 688 *
AjK 12:8c7394e2ae7f 689 * @ingroup API
AjK 12:8c7394e2ae7f 690 * @return bool
AjK 12:8c7394e2ae7f 691 */
AjK 12:8c7394e2ae7f 692 bool txIsBusy(void);
AjK 12:8c7394e2ae7f 693
AjK 12:8c7394e2ae7f 694 /**
AjK 16:8b1dbf4cce4e 695 * Function: autoDetectChar
AjK 12:8c7394e2ae7f 696 *
AjK 12:8c7394e2ae7f 697 * Set the char that, if seen incoming, invokes the AutoDetectChar callback.
AjK 12:8c7394e2ae7f 698 *
AjK 12:8c7394e2ae7f 699 * @ingroup API
AjK 12:8c7394e2ae7f 700 * @param int c The character to detect.
AjK 12:8c7394e2ae7f 701 */
AjK 16:8b1dbf4cce4e 702 void autoDetectChar(char c) { auto_detect_char = c; }
AjK 12:8c7394e2ae7f 703
AjK 12:8c7394e2ae7f 704 /**
AjK 12:8c7394e2ae7f 705 * Function: move
AjK 12:8c7394e2ae7f 706 *
AjK 12:8c7394e2ae7f 707 * Move contents of RX buffer to external buffer. Stops if "end" detected.
AjK 12:8c7394e2ae7f 708 *
AjK 12:8c7394e2ae7f 709 * @ingroup API
AjK 12:8c7394e2ae7f 710 * @param char *s The destination buffer address
AjK 12:8c7394e2ae7f 711 * @param int max The maximum number of chars to move.
AjK 12:8c7394e2ae7f 712 * @param char end If this char is detected stop moving.
AjK 12:8c7394e2ae7f 713 */
AjK 12:8c7394e2ae7f 714 int move(char *s, int max, char end) {
AjK 12:8c7394e2ae7f 715 int counter = 0;
AjK 12:8c7394e2ae7f 716 char c;
AjK 12:8c7394e2ae7f 717 while(readable()) {
AjK 12:8c7394e2ae7f 718 c = getc();
AjK 12:8c7394e2ae7f 719 if (c == end) break;
AjK 12:8c7394e2ae7f 720 *(s++) = c;
AjK 12:8c7394e2ae7f 721 counter++;
AjK 12:8c7394e2ae7f 722 if (counter == max) break;
AjK 12:8c7394e2ae7f 723 }
AjK 12:8c7394e2ae7f 724 return counter;
AjK 12:8c7394e2ae7f 725 }
AjK 12:8c7394e2ae7f 726
AjK 12:8c7394e2ae7f 727 /**
AjK 12:8c7394e2ae7f 728 * Function: move (overloaded)
AjK 12:8c7394e2ae7f 729 *
AjK 12:8c7394e2ae7f 730 * Move contents of RX buffer to external buffer. Stops if auto_detect_char detected.
AjK 12:8c7394e2ae7f 731 *
AjK 12:8c7394e2ae7f 732 * @ingroup API
AjK 12:8c7394e2ae7f 733 * @param int max The maximum number of chars to move.
AjK 12:8c7394e2ae7f 734 * @param char *s The destination buffer address
AjK 12:8c7394e2ae7f 735 */
AjK 12:8c7394e2ae7f 736 int move(char *s, int max) {
AjK 12:8c7394e2ae7f 737 return move(s, max, auto_detect_char);
AjK 12:8c7394e2ae7f 738 }
AjK 12:8c7394e2ae7f 739
AjK 12:8c7394e2ae7f 740 #if 0 // Inhereted from Serial/Stream, for documentation only
AjK 12:8c7394e2ae7f 741 /**
AjK 12:8c7394e2ae7f 742 * Function: putc
AjK 12:8c7394e2ae7f 743 *
AjK 12:8c7394e2ae7f 744 * Write a character
AjK 12:8c7394e2ae7f 745 * Inhereted from Serial/Stream
AjK 12:8c7394e2ae7f 746 *
AjK 12:8c7394e2ae7f 747 * @see http://mbed.org/projects/libraries/api/mbed/trunk/Serial#Serial.putc
AjK 12:8c7394e2ae7f 748 * @ingroup API
AjK 12:8c7394e2ae7f 749 * @param c The character to write to the serial port
AjK 12:8c7394e2ae7f 750 */
AjK 12:8c7394e2ae7f 751 int putc(int c);
AjK 12:8c7394e2ae7f 752 #endif
AjK 12:8c7394e2ae7f 753
AjK 12:8c7394e2ae7f 754 #if 0 // Inhereted from Serial/Stream, for documentation only
AjK 12:8c7394e2ae7f 755 /**
AjK 12:8c7394e2ae7f 756 * Function: printf
AjK 12:8c7394e2ae7f 757 *
AjK 12:8c7394e2ae7f 758 * Write a formated string
AjK 12:8c7394e2ae7f 759 * Inhereted from Serial/Stream
AjK 12:8c7394e2ae7f 760 *
AjK 12:8c7394e2ae7f 761 * @see http://mbed.org/projects/libraries/api/mbed/trunk/Serial#Serial.printf
AjK 12:8c7394e2ae7f 762 * @ingroup API
AjK 12:8c7394e2ae7f 763 * @param format A printf-style format string, followed by the variables to use in formating the string.
AjK 12:8c7394e2ae7f 764 */
AjK 12:8c7394e2ae7f 765 int printf(const char* format, ...);
AjK 12:8c7394e2ae7f 766 #endif
AjK 12:8c7394e2ae7f 767
AjK 12:8c7394e2ae7f 768 #if 0 // Inhereted from Serial/Stream, for documentation only
AjK 12:8c7394e2ae7f 769 /**
AjK 12:8c7394e2ae7f 770 * Function: scanf
AjK 12:8c7394e2ae7f 771 *
AjK 12:8c7394e2ae7f 772 * Read a formated string
AjK 12:8c7394e2ae7f 773 * Inhereted from Serial/Stream
AjK 12:8c7394e2ae7f 774 *
AjK 12:8c7394e2ae7f 775 * @see http://mbed.org/projects/libraries/api/mbed/trunk/Serial#Serial.scanf
AjK 12:8c7394e2ae7f 776 * @ingroup API
AjK 12:8c7394e2ae7f 777 * @param format - A scanf-style format string, followed by the pointers to variables to store the results.
AjK 12:8c7394e2ae7f 778 */
AjK 12:8c7394e2ae7f 779 int scanf(const char* format, ...);
AjK 12:8c7394e2ae7f 780 #endif
AjK 18:21ef26402365 781
AjK 18:21ef26402365 782 protected:
AjK 18:21ef26402365 783 /**
AjK 18:21ef26402365 784 * Used to pass information to callbacks.
AjK 18:21ef26402365 785 * @ingroup INTERNALS
AjK 18:21ef26402365 786 */
AjK 18:21ef26402365 787 MODSERIAL_IRQ_INFO callbackInfo;
AjK 18:21ef26402365 788
AjK 18:21ef26402365 789 /**
AjK 18:21ef26402365 790 * Remove the last char placed into the rx buffer.
AjK 18:21ef26402365 791 * This is an operation that can only be performed
AjK 18:21ef26402365 792 * by an rxCallback function. To protect the buffers
AjK 18:21ef26402365 793 * this function is defined protected so that a
AjK 18:21ef26402365 794 * regular application cannot call it directly. It
AjK 18:21ef26402365 795 * can only be called by the public version within a
AjK 18:21ef26402365 796 * MODSERIAL_IRQ_INFO class.
AjK 18:21ef26402365 797 * @ingroup INTERNALS
AjK 18:21ef26402365 798 * @return The byte removed from the buffer.
AjK 18:21ef26402365 799 */
AjK 18:21ef26402365 800 int rxDiscardLastChar(void);
AjK 12:8c7394e2ae7f 801
AjK 18:21ef26402365 802 private:
AjK 12:8c7394e2ae7f 803
AjK 12:8c7394e2ae7f 804 /**
AjK 12:8c7394e2ae7f 805 * A pointer to the UART peripheral base address being used.
AjK 12:8c7394e2ae7f 806 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 807 */
AjK 12:8c7394e2ae7f 808 void *_base;
AjK 12:8c7394e2ae7f 809
AjK 12:8c7394e2ae7f 810 /**
AjK 12:8c7394e2ae7f 811 * The last byte to pass through the TX IRQ handler.
AjK 12:8c7394e2ae7f 812 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 813 */
AjK 12:8c7394e2ae7f 814 volatile char txc;
AjK 12:8c7394e2ae7f 815
AjK 12:8c7394e2ae7f 816 /**
AjK 12:8c7394e2ae7f 817 * The last byte to pass through the RX IRQ handler.
AjK 12:8c7394e2ae7f 818 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 819 */
AjK 12:8c7394e2ae7f 820 volatile char rxc;
AjK 12:8c7394e2ae7f 821
AjK 12:8c7394e2ae7f 822 /**
AjK 12:8c7394e2ae7f 823 * Pointers to the TX and RX buffers.
AjK 12:8c7394e2ae7f 824 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 825 */
AjK 12:8c7394e2ae7f 826 volatile char *buffer[2];
AjK 12:8c7394e2ae7f 827
AjK 12:8c7394e2ae7f 828 /**
AjK 12:8c7394e2ae7f 829 * Buffer in pointers.
AjK 12:8c7394e2ae7f 830 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 831 */
AjK 12:8c7394e2ae7f 832 volatile int buffer_in[2];
AjK 12:8c7394e2ae7f 833
AjK 12:8c7394e2ae7f 834 /**
AjK 12:8c7394e2ae7f 835 * Buffer out pointers.
AjK 12:8c7394e2ae7f 836 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 837 */
AjK 12:8c7394e2ae7f 838 volatile int buffer_out[2];
AjK 12:8c7394e2ae7f 839
AjK 12:8c7394e2ae7f 840 /**
AjK 12:8c7394e2ae7f 841 * Buffer lengths.
AjK 12:8c7394e2ae7f 842 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 843 */
AjK 12:8c7394e2ae7f 844 volatile int buffer_size[2];
AjK 12:8c7394e2ae7f 845
AjK 12:8c7394e2ae7f 846 /**
AjK 12:8c7394e2ae7f 847 * Buffer content counters.
AjK 12:8c7394e2ae7f 848 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 849 */
AjK 12:8c7394e2ae7f 850 volatile int buffer_count[2];
AjK 12:8c7394e2ae7f 851
AjK 12:8c7394e2ae7f 852 /**
AjK 12:8c7394e2ae7f 853 * Buffer overflow.
AjK 12:8c7394e2ae7f 854 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 855 */
AjK 12:8c7394e2ae7f 856 volatile int buffer_overflow[2];
AjK 12:8c7394e2ae7f 857
AjK 12:8c7394e2ae7f 858 /**
AjK 12:8c7394e2ae7f 859 * Auto-detect character.
AjK 12:8c7394e2ae7f 860 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 861 */
AjK 12:8c7394e2ae7f 862 volatile char auto_detect_char;
AjK 12:8c7394e2ae7f 863
AjK 12:8c7394e2ae7f 864 /**
AjK 12:8c7394e2ae7f 865 * Callback system.
AjK 12:8c7394e2ae7f 866 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 867 */
AjK 18:21ef26402365 868 MODSERIAL_callback _isr[NumOfIrqTypes];
AjK 12:8c7394e2ae7f 869
AjK 12:8c7394e2ae7f 870 /**
AjK 12:8c7394e2ae7f 871 * TX Interrupt Service Routine.
AjK 12:8c7394e2ae7f 872 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 873 */
AjK 12:8c7394e2ae7f 874 void isr_tx(bool doCallback);
AjK 12:8c7394e2ae7f 875
AjK 12:8c7394e2ae7f 876 /**
AjK 12:8c7394e2ae7f 877 * TX Interrupt Service Routine stub version.
AjK 12:8c7394e2ae7f 878 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 879 */
AjK 12:8c7394e2ae7f 880 void isr_tx(void) { isr_tx(true); }
AjK 12:8c7394e2ae7f 881
AjK 12:8c7394e2ae7f 882
AjK 12:8c7394e2ae7f 883 /**
AjK 12:8c7394e2ae7f 884 * RX Interrupt Service Routine.
AjK 12:8c7394e2ae7f 885 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 886 */
AjK 12:8c7394e2ae7f 887 void isr_rx(void);
AjK 12:8c7394e2ae7f 888
AjK 12:8c7394e2ae7f 889 /**
AjK 12:8c7394e2ae7f 890 * Disable the interrupts for this Uart.
AjK 12:8c7394e2ae7f 891 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 892 */
AjK 12:8c7394e2ae7f 893 void disableIrq(void);
AjK 12:8c7394e2ae7f 894
AjK 12:8c7394e2ae7f 895 /**
AjK 12:8c7394e2ae7f 896 * Enable the interrupts for this Uart.
AjK 12:8c7394e2ae7f 897 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 898 */
AjK 12:8c7394e2ae7f 899 void enableIrq(void);
AjK 18:21ef26402365 900
AjK 12:8c7394e2ae7f 901 /**
AjK 12:8c7394e2ae7f 902 * Get a character from the RX buffer
AjK 12:8c7394e2ae7f 903 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 904 * @param bool True to block (wait for input)
AjK 12:8c7394e2ae7f 905 * @return A byte from the buffer.
AjK 12:8c7394e2ae7f 906 */
AjK 12:8c7394e2ae7f 907 int __getc(bool);
AjK 12:8c7394e2ae7f 908
AjK 12:8c7394e2ae7f 909 /**
AjK 12:8c7394e2ae7f 910 * Put a character from the TX buffer
AjK 12:8c7394e2ae7f 911 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 912 * @param bool True to block (wait for space in the TX buffer if full)
AjK 12:8c7394e2ae7f 913 * @return 0 on success
AjK 12:8c7394e2ae7f 914 */
AjK 12:8c7394e2ae7f 915 int __putc(int c, bool);
AjK 12:8c7394e2ae7f 916
AjK 12:8c7394e2ae7f 917 /**
AjK 12:8c7394e2ae7f 918 * Function: _putc
AjK 12:8c7394e2ae7f 919 * Overloaded virtual function.
AjK 12:8c7394e2ae7f 920 */
AjK 12:8c7394e2ae7f 921 virtual int _putc(int c) { return __putc(c, true); }
AjK 12:8c7394e2ae7f 922
AjK 12:8c7394e2ae7f 923 /**
AjK 12:8c7394e2ae7f 924 * Function: _getc
AjK 12:8c7394e2ae7f 925 * Overloaded virtual function.
AjK 12:8c7394e2ae7f 926 */
AjK 12:8c7394e2ae7f 927 virtual int _getc() { return __getc(true); }
AjK 12:8c7394e2ae7f 928
AjK 12:8c7394e2ae7f 929 /**
AjK 12:8c7394e2ae7f 930 * Function: init
AjK 12:8c7394e2ae7f 931 * Initialize the MODSERIAL object
AjK 12:8c7394e2ae7f 932 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 933 */
AjK 12:8c7394e2ae7f 934 void init(int txSize, int rxSize);
AjK 12:8c7394e2ae7f 935
AjK 12:8c7394e2ae7f 936 /**
AjK 12:8c7394e2ae7f 937 * Function: flushBuffer
AjK 12:8c7394e2ae7f 938 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 939 */
AjK 12:8c7394e2ae7f 940 void flushBuffer(IrqType type);
AjK 12:8c7394e2ae7f 941
AjK 12:8c7394e2ae7f 942 /**
AjK 12:8c7394e2ae7f 943 * Function: resizeBuffer
AjK 12:8c7394e2ae7f 944 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 945 */
AjK 12:8c7394e2ae7f 946 int resizeBuffer(int size, IrqType type = RxIrq, bool memory_check = true);
AjK 12:8c7394e2ae7f 947
AjK 12:8c7394e2ae7f 948 /**
AjK 12:8c7394e2ae7f 949 * Function: downSizeBuffer
AjK 12:8c7394e2ae7f 950 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 951 */
AjK 12:8c7394e2ae7f 952 int downSizeBuffer(int size, IrqType type, bool memory_check);
AjK 12:8c7394e2ae7f 953
AjK 12:8c7394e2ae7f 954 /**
AjK 12:8c7394e2ae7f 955 * Function: upSizeBuffer
AjK 12:8c7394e2ae7f 956 * @ingroup INTERNALS
AjK 12:8c7394e2ae7f 957 */
AjK 12:8c7394e2ae7f 958 int upSizeBuffer(int size, IrqType type, bool memory_check);
AjK 12:8c7394e2ae7f 959
AjK 12:8c7394e2ae7f 960 /*
AjK 12:8c7394e2ae7f 961 * If MODDMA is available the compile in code to handle sending
AjK 12:8c7394e2ae7f 962 * an arbitary char buffer. Note, the parts before teh #ifdef
AjK 12:8c7394e2ae7f 963 * are declared so that MODSERIAL can access then even if MODDMA
AjK 12:8c7394e2ae7f 964 * isn't avaiable. Since MODDMA.h is only available at this point
AjK 12:8c7394e2ae7f 965 * all DMA functionality must be declared inline in the class
AjK 12:8c7394e2ae7f 966 * definition.
AjK 12:8c7394e2ae7f 967 */
AjK 12:8c7394e2ae7f 968 public:
AjK 12:8c7394e2ae7f 969
AjK 12:8c7394e2ae7f 970 int dmaSendChannel;
AjK 12:8c7394e2ae7f 971 void *moddma_p;
AjK 12:8c7394e2ae7f 972
AjK 12:8c7394e2ae7f 973 #ifdef MODDMA_H
AjK 12:8c7394e2ae7f 974
AjK 17:6c9b57c14868 975 MODDMA_Config *config;
AjK 17:6c9b57c14868 976
AjK 12:8c7394e2ae7f 977 /**
AjK 12:8c7394e2ae7f 978 * Set the "void pointer" moddma_p to be a pointer to a
AjK 12:8c7394e2ae7f 979 * MODDMA controller class instance. Used to manage the
AjK 12:8c7394e2ae7f 980 * data transfer of DMA configurations.
AjK 12:8c7394e2ae7f 981 *
AjK 12:8c7394e2ae7f 982 * @ingroup API
AjK 12:8c7394e2ae7f 983 * @param p A pointer to "the" instance of MODDMA.
AjK 12:8c7394e2ae7f 984 */
AjK 12:8c7394e2ae7f 985 void MODDMA(MODDMA *p) { moddma_p = p; }
AjK 12:8c7394e2ae7f 986
AjK 12:8c7394e2ae7f 987 /**
AjK 12:8c7394e2ae7f 988 * Send a char buffer to the Uarts TX system
AjK 12:8c7394e2ae7f 989 * using DMA. This blocks regular library
AjK 12:8c7394e2ae7f 990 * sending.
AjK 12:8c7394e2ae7f 991 *
AjK 12:8c7394e2ae7f 992 * @param buffer A char buffer of bytes to send.
AjK 12:8c7394e2ae7f 993 * @param len The length of the buffer to send.
AjK 12:8c7394e2ae7f 994 * @param dmaChannel The DMA channel to use, defaults to 7
AjK 12:8c7394e2ae7f 995 * @return MODDMA::Status MODDMA::ok if all went ok
AjK 12:8c7394e2ae7f 996 */
AjK 12:8c7394e2ae7f 997 int dmaSend(char *buffer, int len, int dmaChannel = 7)
AjK 12:8c7394e2ae7f 998 {
AjK 12:8c7394e2ae7f 999 if (moddma_p == (void *)NULL) return -2;
AjK 12:8c7394e2ae7f 1000 class MODDMA *dma = (class MODDMA *)moddma_p;
AjK 12:8c7394e2ae7f 1001
AjK 12:8c7394e2ae7f 1002 dmaSendChannel = dmaChannel & 0x7;
AjK 12:8c7394e2ae7f 1003
AjK 12:8c7394e2ae7f 1004 uint32_t conn = MODDMA::UART0_Tx;
AjK 12:8c7394e2ae7f 1005 switch(_uidx) {
AjK 12:8c7394e2ae7f 1006 case 0: conn = MODDMA::UART0_Tx; break;
AjK 12:8c7394e2ae7f 1007 case 1: conn = MODDMA::UART1_Tx; break;
AjK 12:8c7394e2ae7f 1008 case 2: conn = MODDMA::UART2_Tx; break;
AjK 12:8c7394e2ae7f 1009 case 3: conn = MODDMA::UART3_Tx; break;
AjK 12:8c7394e2ae7f 1010 }
AjK 12:8c7394e2ae7f 1011
AjK 17:6c9b57c14868 1012 config = new MODDMA_Config;
AjK 12:8c7394e2ae7f 1013 config
AjK 12:8c7394e2ae7f 1014 ->channelNum ( (MODDMA::CHANNELS)(dmaSendChannel & 0x7) )
AjK 12:8c7394e2ae7f 1015 ->srcMemAddr ( (uint32_t) buffer )
AjK 12:8c7394e2ae7f 1016 ->transferSize ( len )
AjK 12:8c7394e2ae7f 1017 ->transferType ( MODDMA::m2p )
AjK 12:8c7394e2ae7f 1018 ->dstConn ( conn )
AjK 12:8c7394e2ae7f 1019 ->attach_tc ( this, &MODSERIAL::dmaSendCallback )
AjK 12:8c7394e2ae7f 1020 ->attach_err ( this, &MODSERIAL::dmaSendCallback )
AjK 12:8c7394e2ae7f 1021 ; // config end
AjK 12:8c7394e2ae7f 1022
AjK 12:8c7394e2ae7f 1023 // Setup the configuration.
AjK 17:6c9b57c14868 1024 if (dma->Setup(config) == 0) {
AjK 12:8c7394e2ae7f 1025 return -1;
AjK 12:8c7394e2ae7f 1026 }
AjK 12:8c7394e2ae7f 1027
AjK 12:8c7394e2ae7f 1028 //dma.Enable( MODDMA::Channel_0 );
AjK 12:8c7394e2ae7f 1029 dma->Enable( config->channelNum() );
AjK 12:8c7394e2ae7f 1030 return MODDMA::Ok;
AjK 12:8c7394e2ae7f 1031 }
AjK 12:8c7394e2ae7f 1032
AjK 12:8c7394e2ae7f 1033 /**
AjK 12:8c7394e2ae7f 1034 * Attach a callback to the DMA completion.
AjK 12:8c7394e2ae7f 1035 *
AjK 12:8c7394e2ae7f 1036 * @ingroup API
AjK 12:8c7394e2ae7f 1037 * @param fptr A function pointer to call
AjK 12:8c7394e2ae7f 1038 * @return this
AjK 12:8c7394e2ae7f 1039 */
AjK 18:21ef26402365 1040 void attach_dmaSendComplete(void (*fptr)(MODSERIAL_IRQ_INFO *)) {
AjK 12:8c7394e2ae7f 1041 _isrDmaSendComplete.attach(fptr);
AjK 12:8c7394e2ae7f 1042 }
AjK 12:8c7394e2ae7f 1043
AjK 12:8c7394e2ae7f 1044 /**
AjK 12:8c7394e2ae7f 1045 * Attach a callback to the DMA completion.
AjK 12:8c7394e2ae7f 1046 *
AjK 12:8c7394e2ae7f 1047 * @ingroup API
AjK 12:8c7394e2ae7f 1048 * @param tptr A template pointer to the calling object
AjK 12:8c7394e2ae7f 1049 * @param mptr A method pointer within the object to call.
AjK 12:8c7394e2ae7f 1050 * @return this
AjK 12:8c7394e2ae7f 1051 */
AjK 12:8c7394e2ae7f 1052 template<typename T>
AjK 18:21ef26402365 1053 void attach_dmaSendComplete(T* tptr, void (T::*mptr)(MODSERIAL_IRQ_INFO *)) {
AjK 12:8c7394e2ae7f 1054 if((mptr != NULL) && (tptr != NULL)) {
AjK 12:8c7394e2ae7f 1055 _isrDmaSendComplete.attach(tptr, mptr);
AjK 12:8c7394e2ae7f 1056 }
AjK 12:8c7394e2ae7f 1057 }
AjK 12:8c7394e2ae7f 1058
AjK 18:21ef26402365 1059 MODSERIAL_callback _isrDmaSendComplete;
AjK 12:8c7394e2ae7f 1060
AjK 12:8c7394e2ae7f 1061 protected:
AjK 12:8c7394e2ae7f 1062 /**
AjK 12:8c7394e2ae7f 1063 * Callback for dmaSend().
AjK 12:8c7394e2ae7f 1064 */
AjK 12:8c7394e2ae7f 1065 void dmaSendCallback(void)
AjK 12:8c7394e2ae7f 1066 {
AjK 12:8c7394e2ae7f 1067 if (moddma_p == (void *)NULL) return;
AjK 12:8c7394e2ae7f 1068 class MODDMA *dma = (class MODDMA *)moddma_p;
AjK 12:8c7394e2ae7f 1069
AjK 12:8c7394e2ae7f 1070 MODDMA_Config *config = dma->getConfig();
AjK 12:8c7394e2ae7f 1071 dma->haltAndWaitChannelComplete( (MODDMA::CHANNELS)config->channelNum());
AjK 12:8c7394e2ae7f 1072 dma->Disable( (MODDMA::CHANNELS)config->channelNum() );
AjK 12:8c7394e2ae7f 1073 if (dma->irqType() == MODDMA::TcIrq) dma->clearTcIrq();
AjK 12:8c7394e2ae7f 1074 if (dma->irqType() == MODDMA::ErrIrq) dma->clearErrIrq();
AjK 12:8c7394e2ae7f 1075 dmaSendChannel = -1;
AjK 18:21ef26402365 1076 _isrDmaSendComplete.call(&this->callbackInfo);
AjK 17:6c9b57c14868 1077 delete(config);
AjK 12:8c7394e2ae7f 1078 }
AjK 12:8c7394e2ae7f 1079
AjK 12:8c7394e2ae7f 1080 #endif // MODDMA_H
AjK 12:8c7394e2ae7f 1081
AjK 12:8c7394e2ae7f 1082 };
AjK 12:8c7394e2ae7f 1083
AjK 12:8c7394e2ae7f 1084 }; // namespace AjK ends
AjK 12:8c7394e2ae7f 1085
AjK 12:8c7394e2ae7f 1086 using namespace AjK;
AjK 12:8c7394e2ae7f 1087
AjK 12:8c7394e2ae7f 1088 #endif