Library for VLSI VS1053b - Ogg Vorbis / MP3 / AAC / WMA / FLAC / MIDI Audio Codec Chip for a complete sample see Lib_VS1053b

Dependents:   Lab3_1 RTOS-VS1053b-mp3_semaphore RTOS-VS1053b-mp3_v01

Committer:
christi_s
Date:
Sun Jan 16 16:53:16 2011 +0000
Revision:
9:0d76f559a151
Parent:
8:5e4a21202223

        

Who changed what in which revision?

UserRevisionLine numberNew contents of line
christi_s 1:ced2c297cc1b 1 /* mbed VLSI VS1053b library
christi_s 1:ced2c297cc1b 2 * Copyright (c) 2010 Christian Schmiljun
christi_s 1:ced2c297cc1b 3 *
christi_s 1:ced2c297cc1b 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
christi_s 1:ced2c297cc1b 5 * of this software and associated documentation files (the "Software"), to deal
christi_s 1:ced2c297cc1b 6 * in the Software without restriction, including without limitation the rights
christi_s 1:ced2c297cc1b 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
christi_s 1:ced2c297cc1b 8 * copies of the Software, and to permit persons to whom the Software is
christi_s 1:ced2c297cc1b 9 * furnished to do so, subject to the following conditions:
christi_s 1:ced2c297cc1b 10 *
christi_s 1:ced2c297cc1b 11 * The above copyright notice and this permission notice shall be included in
christi_s 1:ced2c297cc1b 12 * all copies or substantial portions of the Software.
christi_s 1:ced2c297cc1b 13 *
christi_s 1:ced2c297cc1b 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
christi_s 1:ced2c297cc1b 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
christi_s 1:ced2c297cc1b 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
christi_s 1:ced2c297cc1b 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
christi_s 1:ced2c297cc1b 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
christi_s 1:ced2c297cc1b 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
christi_s 1:ced2c297cc1b 20 * THE SOFTWARE.
christi_s 1:ced2c297cc1b 21 */
christi_s 1:ced2c297cc1b 22
christi_s 1:ced2c297cc1b 23 /* This code based on:
christi_s 1:ced2c297cc1b 24 * mbeduino_MP3_Shield_MP3Player
christi_s 1:ced2c297cc1b 25 * http://mbed.org/users/xshige/programs/mbeduino_MP3_Shield_MP3Player/lgcx63
christi_s 1:ced2c297cc1b 26 * 2010-10-16
christi_s 1:ced2c297cc1b 27 */
christi_s 1:ced2c297cc1b 28
christi_s 2:5bab956cb59e 29 #ifndef _VS1053_H
christi_s 2:5bab956cb59e 30 #define _VS1053_H
christi_s 1:ced2c297cc1b 31
christi_s 0:7728d9c6c487 32 // ----------------------------------------------------------------------------
christi_s 0:7728d9c6c487 33 // Extended settings
christi_s 0:7728d9c6c487 34 // ----------------------------------------------------------------------------
christi_s 1:ced2c297cc1b 35 // Enable debug output (Output -> printf ...)
christi_s 1:ced2c297cc1b 36 // --------------------------------------------------------------------------
christi_s 2:5bab956cb59e 37 // #define DEBUG
christi_s 2:5bab956cb59e 38 // #define DEBUGOUT (x,y...) printf(x, ##y);
christi_s 0:7728d9c6c487 39 // Patches, Addons
christi_s 0:7728d9c6c487 40 // --------------------------------------------------------------------------
christi_s 2:5bab956cb59e 41 // #define VS1053_PATCH_1_4_FLAC
christi_s 2:5bab956cb59e 42 // #define VS1053_PATCH_1_5
christi_s 2:5bab956cb59e 43 // #define VS1053_PATCH_1_5_FLAC
christi_s 2:5bab956cb59e 44 // #define VS1053_SPECANA
christi_s 2:5bab956cb59e 45 // #define VS1053B_PCM_RECORDER_0_9
christi_s 0:7728d9c6c487 46 // ----------------------------------------------------------------------------
christi_s 0:7728d9c6c487 47
christi_s 2:5bab956cb59e 48 #include "defines.h"
christi_s 2:5bab956cb59e 49 #include "mbed.h"
christi_s 2:5bab956cb59e 50
christi_s 1:ced2c297cc1b 51 #if defined(VS1053_PATCH_1_4_FLAC) && defined(VS1053_PATCH_1_5) && defined(VS1053_PATCH_1_5_FLAC) && defined(VS1053_SPECANA) && defined(VS1053B_PCM_RECORDER_0_9)
christi_s 1:ced2c297cc1b 52 #error "VS1053: Exclusive use of patch and app versions."
christi_s 1:ced2c297cc1b 53 #endif
christi_s 1:ced2c297cc1b 54 #if defined(VS1053_PATCH_1_4_FLAC) || defined(VS1053_PATCH_1_5) || defined(VS1053_PATCH_1_5_FLAC) || defined(VS1053_SPECANA) || defined(VS1053B_PCM_RECORDER_0_9)
christi_s 1:ced2c297cc1b 55 #define VS_PATCH
christi_s 0:7728d9c6c487 56 #endif
christi_s 0:7728d9c6c487 57
christi_s 2:5bab956cb59e 58 #ifndef DEBUGOUT
christi_s 2:5bab956cb59e 59 #define DEBUGOUT(x,y...)
christi_s 2:5bab956cb59e 60 #endif
christi_s 2:5bab956cb59e 61
christi_s 0:7728d9c6c487 62
christi_s 2:5bab956cb59e 63 #define DEFAULT_BALANCE_DIFERENCE_LEFT_RIGHT 0.0f
christi_s 2:5bab956cb59e 64 #define DEFAULT_VOLUME -40.0f
christi_s 2:5bab956cb59e 65 #define DEFAULT_BASS_AMPLITUDE 5 // 0 - 15 dB
christi_s 2:5bab956cb59e 66 #define DEFAULT_BASS_FREQUENCY 100 // 20 - 150 Hz
christi_s 2:5bab956cb59e 67 #define DEFAULT_TREBLE_AMPLITUDE 0 // -8 - 7 dB
christi_s 2:5bab956cb59e 68 #define DEFAULT_TREBLE_FREQUENCY 15000 //1000 - 15000 Hz
christi_s 0:7728d9c6c487 69
christi_s 8:5e4a21202223 70
christi_s 4:cacb5e663fa9 71
christi_s 0:7728d9c6c487 72 // SCI register address assignment
christi_s 3:88a645490529 73 #define SCI_MODE 0x00
christi_s 3:88a645490529 74 #define SCI_STATUS 0x01
christi_s 3:88a645490529 75 #define SCI_BASS 0x02
christi_s 3:88a645490529 76 #define SCI_CLOCKF 0x03
christi_s 6:eed008905159 77 #define SCI_DECODE_TIME 0x04
christi_s 3:88a645490529 78 #define SCI_AUDATA 0x05
christi_s 3:88a645490529 79 #define SCI_WRAM 0x06
christi_s 3:88a645490529 80 #define SCI_WRAMADDR 0x07
christi_s 3:88a645490529 81 #define SCI_HDAT0 0x08
christi_s 3:88a645490529 82 #define SCI_HDAT1 0x09
christi_s 3:88a645490529 83 #define SCI_AIADDR 0x0A
christi_s 3:88a645490529 84 #define SCI_VOL 0x0B
christi_s 3:88a645490529 85 #define SCI_AICTRL0 0x0C
christi_s 3:88a645490529 86 #define SCI_AICTRL1 0x0D
christi_s 3:88a645490529 87 #define SCI_AICTRL2 0x0E
christi_s 3:88a645490529 88 #define SCI_AICTRL3 0x0F
christi_s 0:7728d9c6c487 89
christi_s 0:7728d9c6c487 90
christi_s 0:7728d9c6c487 91 //SCI_MODE register bits as of p.38 of the datasheet
christi_s 3:88a645490529 92 #define SM_DIFF 0x0001
christi_s 3:88a645490529 93 #define SM_LAYER12 0x0002
christi_s 3:88a645490529 94 #define SM_RESET 0x0004
christi_s 3:88a645490529 95 #define SM_CANCEL 0x0008
christi_s 3:88a645490529 96 #define SM_EARSPEAKER_LO 0x0010
christi_s 3:88a645490529 97 #define SM_TESTS 0x0020
christi_s 3:88a645490529 98 #define SM_STREAM 0x0040
christi_s 3:88a645490529 99 #define SM_EARSPEAKER_HI 0x0080
christi_s 3:88a645490529 100 #define SM_DACT 0x0100
christi_s 3:88a645490529 101 #define SM_SDIORD 0x0200
christi_s 3:88a645490529 102 #define SM_SDISHARE 0x0400
christi_s 3:88a645490529 103 #define SM_SDINEW 0x0800
christi_s 3:88a645490529 104 #define SM_ADPCM 0x1000
christi_s 3:88a645490529 105 #define SM_B13 0x2000
christi_s 3:88a645490529 106 #define SM_LINE1 0x4000
christi_s 3:88a645490529 107 #define SM_CLK_RANGE 0x8000
christi_s 0:7728d9c6c487 108
christi_s 0:7728d9c6c487 109 //SCI_CLOCKF register bits as of p.42 of the datasheet
christi_s 3:88a645490529 110 #define SC_ADD_NOMOD 0x0000
christi_s 3:88a645490529 111 #define SC_ADD_10x 0x0800
christi_s 3:88a645490529 112 #define SC_ADD_15x 0x1000
christi_s 3:88a645490529 113 #define SC_ADD_20x 0x1800
christi_s 3:88a645490529 114 #define SC_MULT_XTALI 0x0000
christi_s 3:88a645490529 115 #define SC_MULT_XTALIx20 0x2000
christi_s 3:88a645490529 116 #define SC_MULT_XTALIx25 0x4000
christi_s 3:88a645490529 117 #define SC_MULT_XTALIx30 0x6000
christi_s 3:88a645490529 118 #define SC_MULT_XTALIx35 0x8000
christi_s 3:88a645490529 119 #define SC_MULT_XTALIx40 0xA000
christi_s 3:88a645490529 120 #define SC_MULT_XTALIx45 0xC000
christi_s 3:88a645490529 121 #define SC_MULT_XTALIx50 0xE000
christi_s 0:7728d9c6c487 122
christi_s 0:7728d9c6c487 123 // Extra Parameter in X memory (refer to p.58 of the datasheet)
christi_s 3:88a645490529 124 #define para_chipID_0 0x1E00
christi_s 3:88a645490529 125 #define para_chipID_1 0x1E01
christi_s 3:88a645490529 126 #define para_version 0x1E02
christi_s 3:88a645490529 127 #define para_config1 0x1E03
christi_s 3:88a645490529 128 #define para_playSpeed 0x1E04
christi_s 3:88a645490529 129 #define para_byteRate 0x1E05
christi_s 3:88a645490529 130 #define para_endFillByte 0x1E06
christi_s 0:7728d9c6c487 131 //
christi_s 3:88a645490529 132 #define para_positionMsec_0 0x1E27
christi_s 3:88a645490529 133 #define para_positionMsec_1 0x1E28
christi_s 3:88a645490529 134 #define para_resync 0x1E29
christi_s 4:cacb5e663fa9 135
christi_s 4:cacb5e663fa9 136 #define INTERRUPT_HANDLER_ENABLE _DREQ_INTERUPT_IN.rise(this, &VS1053::dataRequestHandler); timer.attach_us(this, &VS1053::dataRequestHandler, 1000)
christi_s 4:cacb5e663fa9 137 #define INTERRUPT_HANDLER_DISABLE _DREQ_INTERUPT_IN.rise(NULL); timer.detach()
christi_s 0:7728d9c6c487 138
christi_s 6:eed008905159 139
christi_s 7:b6853a2c88c2 140 /** Types of audio streams
christi_s 7:b6853a2c88c2 141 *
christi_s 7:b6853a2c88c2 142 */
christi_s 9:0d76f559a151 143 enum AudioType
christi_s 6:eed008905159 144 {
christi_s 7:b6853a2c88c2 145 WAV, /*!< WAVE audio stream */
christi_s 7:b6853a2c88c2 146 AAC, /*!< AAC audio stream (ADTS (.aac), MPEG2 ADIF (.aac) and MPEG4 AUDIO (.mp4 / .m4a / .3gp / .3g2)) */
christi_s 7:b6853a2c88c2 147 WMA, /*!< Windows Media Audio (WMA) stream */
christi_s 7:b6853a2c88c2 148 MIDI, /*!< Midi audio stream */
christi_s 7:b6853a2c88c2 149 OGG_VORBIS, /*!< Ogg Vorbis audio stream */
christi_s 7:b6853a2c88c2 150 MP3, /*!< MPEG Audio Layer */
christi_s 7:b6853a2c88c2 151 UNKNOWN /*!< Unknown */
christi_s 9:0d76f559a151 152 };
christi_s 9:0d76f559a151 153
christi_s 9:0d76f559a151 154 typedef enum AudioType AudioType;
christi_s 6:eed008905159 155
christi_s 7:b6853a2c88c2 156 /** Types of MPEG Audio Layer stream IDs.
christi_s 7:b6853a2c88c2 157 *
christi_s 7:b6853a2c88c2 158 */
christi_s 9:0d76f559a151 159 enum MP3_ID
christi_s 6:eed008905159 160 {
christi_s 7:b6853a2c88c2 161 MPG2_5a = 0, /*!< MPG 2.5, nonstandard, proprietary */
christi_s 7:b6853a2c88c2 162 MPG2_5b = 1, /*!< MPG 2.5, nonstandard, proprietary */
christi_s 7:b6853a2c88c2 163 MPG2_0 = 2, /*!< ISO 13818-3 MPG 2.0 */
christi_s 7:b6853a2c88c2 164 MPG1_0 = 3 /*!< ISO 11172-3 MPG 1.0 */
christi_s 9:0d76f559a151 165 };
christi_s 9:0d76f559a151 166
christi_s 9:0d76f559a151 167 typedef enum MP3_ID MP3_ID;
christi_s 6:eed008905159 168
christi_s 7:b6853a2c88c2 169 /** Types of MPEG Audio Layer channel modes.
christi_s 7:b6853a2c88c2 170 *
christi_s 7:b6853a2c88c2 171 */
christi_s 9:0d76f559a151 172 enum MP3_MODE
christi_s 6:eed008905159 173 {
christi_s 7:b6853a2c88c2 174 STEREO = 0, /*!< Stereo */
christi_s 7:b6853a2c88c2 175 JOINT_STEREO = 1, /*!< Joint Stereo */
christi_s 7:b6853a2c88c2 176 DUAL_CHANNEL = 2, /*!< Dual Channel */
christi_s 7:b6853a2c88c2 177 MONO = 3 /*!< Mono */
christi_s 9:0d76f559a151 178 };
christi_s 6:eed008905159 179
christi_s 9:0d76f559a151 180 typedef enum MP3_MODE MP3_MODE;
christi_s 6:eed008905159 181 /** Struct for informations about audio streams.
christi_s 6:eed008905159 182 *
christi_s 6:eed008905159 183 */
christi_s 6:eed008905159 184 typedef struct AudioInfo
christi_s 6:eed008905159 185 {
christi_s 7:b6853a2c88c2 186 AudioType type : 4; /*!< Type of the audio stream - important for the interpretation of the lower union */
christi_s 7:b6853a2c88c2 187 unsigned short kBitRate; /*!< Average bitrate of the audio stream - in kBit/s */
christi_s 7:b6853a2c88c2 188 unsigned short decodeTime; /*!< Decode time */
christi_s 6:eed008905159 189 union {
christi_s 6:eed008905159 190 struct {
christi_s 7:b6853a2c88c2 191 MP3_ID id : 2; /*!< ID */
christi_s 7:b6853a2c88c2 192 char layer : 2; /*!< Layer */
christi_s 7:b6853a2c88c2 193 char protrectBit : 1; /*!< Protect bit, see p.44 of the datasheet */
christi_s 7:b6853a2c88c2 194 char padBit : 1; /*!< Pad bit, see p.44 of the datasheet */
christi_s 7:b6853a2c88c2 195 MP3_MODE mode : 2; /*!< Channel mode */
christi_s 7:b6853a2c88c2 196 char extension : 2; /*!< Extension, see p.44 of the datasheet */
christi_s 7:b6853a2c88c2 197 char copyright : 1; /*!< Copyright, see p.44 of the datasheet */
christi_s 7:b6853a2c88c2 198 char original : 1; /*!< Original, see p.44 of the datasheet */
christi_s 7:b6853a2c88c2 199 char emphasis : 2; /*!< Emphasis, see p.44 of the datasheet */
christi_s 7:b6853a2c88c2 200 char kSampleRate : 6; /*!< Samplerate - in kHz (rounded) */
christi_s 7:b6853a2c88c2 201 } mp3; /*!< MPEG Audio Layer */
christi_s 6:eed008905159 202 struct {
christi_s 6:eed008905159 203
christi_s 7:b6853a2c88c2 204 } wma; /*!< Windows Media Audio (WMA) stream */
christi_s 6:eed008905159 205 struct {
christi_s 6:eed008905159 206
christi_s 7:b6853a2c88c2 207 } aac; /*!< AAC audio stream */
christi_s 6:eed008905159 208 struct {
christi_s 6:eed008905159 209
christi_s 7:b6853a2c88c2 210 } other; /*!< Other */
christi_s 6:eed008905159 211 } ext;
christi_s 6:eed008905159 212
christi_s 6:eed008905159 213 } AudioInfo;
christi_s 6:eed008905159 214
christi_s 2:5bab956cb59e 215 /** Class for VS1053 - Ogg Vorbis / MP3 / AAC / WMA / FLAC / MIDI Audio Codec Chip.
christi_s 7:b6853a2c88c2 216 * Datasheet, see http://www.vlsi.fi/fileadmin/datasheets/vlsi/vs1053.pdf
christi_s 2:5bab956cb59e 217 *
christi_s 2:5bab956cb59e 218 * This code based on:
christi_s 2:5bab956cb59e 219 * mbeduino_MP3_Shield_MP3Player
christi_s 2:5bab956cb59e 220 * http://mbed.org/users/xshige/programs/mbeduino_MP3_Shield_MP3Player/lgcx63
christi_s 2:5bab956cb59e 221 * 2010-10-16
christi_s 2:5bab956cb59e 222 *
christi_s 2:5bab956cb59e 223 * For the use of this class, a file "defines.h" must be created.
christi_s 2:5bab956cb59e 224 * It controls debug output and vs1053 patches.
christi_s 1:ced2c297cc1b 225 *
christi_s 2:5bab956cb59e 226 * defines.h:
christi_s 2:5bab956cb59e 227 *@code
christi_s 2:5bab956cb59e 228 * #ifndef _DEFINES_H
christi_s 2:5bab956cb59e 229 * #define _DEFINES_H
christi_s 2:5bab956cb59e 230 * // ----------------------------------------------------------------------------
christi_s 2:5bab956cb59e 231 * // debug output
christi_s 2:5bab956cb59e 232 * // ----------------------------------------------------------------------------
christi_s 2:5bab956cb59e 233 * // optional
christi_s 2:5bab956cb59e 234 * #define DEBUG
christi_s 2:5bab956cb59e 235 * #ifdef DEBUG
christi_s 2:5bab956cb59e 236 * # define DEBUGOUT(x,y...) printf(x, ##y);
christi_s 2:5bab956cb59e 237 * #else
christi_s 2:5bab956cb59e 238 * # define DEBUGOUT(x,y...)
christi_s 2:5bab956cb59e 239 * #endif
christi_s 2:5bab956cb59e 240 * // ----------------------------------------------------------------------------
christi_s 2:5bab956cb59e 241 * // VLSI VS1053b library, patch, apps
christi_s 2:5bab956cb59e 242 * // ----------------------------------------------------------------------------
christi_s 2:5bab956cb59e 243 * // optional, ONLY ONE
christi_s 2:5bab956cb59e 244 * //#define VS1053_PATCH_1_4_FLAC
christi_s 2:5bab956cb59e 245 * //#define VS1053_PATCH_1_5
christi_s 2:5bab956cb59e 246 * #define VS1053_PATCH_1_5_FLAC
christi_s 2:5bab956cb59e 247 * //#define VS1053_SPECANA
christi_s 2:5bab956cb59e 248 * //#define VS1053B_PCM_RECORDER_0_9
christi_s 2:5bab956cb59e 249 *
christi_s 7:b6853a2c88c2 250 * #endif //_DEFINES_H
christi_s 7:b6853a2c88c2 251 *@endcode
christi_s 1:ced2c297cc1b 252 *
christi_s 7:b6853a2c88c2 253 * For a complete sample, see http://mbed.org/users/christi_s/programs/Lib_VS1053b
christi_s 7:b6853a2c88c2 254 *
christi_s 1:ced2c297cc1b 255 */
christi_s 0:7728d9c6c487 256 class VS1053 {
christi_s 0:7728d9c6c487 257
christi_s 0:7728d9c6c487 258 public:
christi_s 1:ced2c297cc1b 259 /** Create a vs1053b object.
christi_s 1:ced2c297cc1b 260 *
christi_s 2:5bab956cb59e 261 * @param mosi
christi_s 2:5bab956cb59e 262 * SPI Master Out, Slave In pin to vs1053b.
christi_s 2:5bab956cb59e 263 * @param miso
christi_s 2:5bab956cb59e 264 * SPI Master In, Slave Out pin to vs1053b.
christi_s 2:5bab956cb59e 265 * @param sck
christi_s 2:5bab956cb59e 266 * SPI Clock pin to vs1053b.
christi_s 2:5bab956cb59e 267 * @param cs
christi_s 2:5bab956cb59e 268 * Pin to vs1053b control chip select.
christi_s 2:5bab956cb59e 269 * @param rst
christi_s 2:5bab956cb59e 270 * Pin to vs1053b reset.
christi_s 2:5bab956cb59e 271 * @param dreq
christi_s 2:5bab956cb59e 272 * Pin to vs1053b data request.
christi_s 2:5bab956cb59e 273 * @param dcs
christi_s 2:5bab956cb59e 274 * Pin to vs1053b data chip select.
christi_s 8:5e4a21202223 275 * @param buffer
christi_s 8:5e4a21202223 276 * Array to cache audio data.
christi_s 8:5e4a21202223 277 * @param buffer_size
christi_s 8:5e4a21202223 278 * Length of the array.
christi_s 1:ced2c297cc1b 279 */
christi_s 0:7728d9c6c487 280 VS1053(
christi_s 1:ced2c297cc1b 281 PinName mosi,
christi_s 1:ced2c297cc1b 282 PinName miso,
christi_s 1:ced2c297cc1b 283 PinName sck,
christi_s 1:ced2c297cc1b 284 PinName cs,
christi_s 1:ced2c297cc1b 285 PinName rst,
christi_s 1:ced2c297cc1b 286 PinName dreq,
christi_s 8:5e4a21202223 287 PinName dcs,
christi_s 8:5e4a21202223 288 char* buffer,
christi_s 8:5e4a21202223 289 int buffer_size
christi_s 8:5e4a21202223 290 );
christi_s 0:7728d9c6c487 291
christi_s 1:ced2c297cc1b 292 /** Reset the vs1053b. (hardware reset)
christi_s 1:ced2c297cc1b 293 *
christi_s 1:ced2c297cc1b 294 */
christi_s 2:5bab956cb59e 295 void reset(void);
christi_s 5:ead95c0f7800 296
christi_s 5:ead95c0f7800 297 /** Stop the playback if the song is completed.
christi_s 5:ead95c0f7800 298 * You must call this function for default playback.
christi_s 5:ead95c0f7800 299 *
christi_s 5:ead95c0f7800 300 */
christi_s 1:ced2c297cc1b 301 void terminateStream(void);
christi_s 1:ced2c297cc1b 302
christi_s 2:5bab956cb59e 303 /** Initialize the vs1053b device.
christi_s 1:ced2c297cc1b 304 *
christi_s 2:5bab956cb59e 305 * @return
christi_s 2:5bab956cb59e 306 * TRUE on success, FALSE on failure.
christi_s 1:ced2c297cc1b 307 */
christi_s 2:5bab956cb59e 308 bool initialize(void);
christi_s 1:ced2c297cc1b 309
christi_s 2:5bab956cb59e 310 /** Set the volume.
christi_s 2:5bab956cb59e 311 *
christi_s 2:5bab956cb59e 312 * @param volume
christi_s 2:5bab956cb59e 313 * Volume -0.5dB, -1.0dB, .. -64.0dB.
christi_s 2:5bab956cb59e 314 */
christi_s 2:5bab956cb59e 315 void setVolume(float volume = DEFAULT_VOLUME);
christi_s 2:5bab956cb59e 316
christi_s 2:5bab956cb59e 317 /** Get the volume.
christi_s 2:5bab956cb59e 318 *
christi_s 2:5bab956cb59e 319 * @return
christi_s 2:5bab956cb59e 320 * Return the volume in dB.
christi_s 2:5bab956cb59e 321 */
christi_s 1:ced2c297cc1b 322 float getVolume();
christi_s 1:ced2c297cc1b 323
christi_s 2:5bab956cb59e 324 /** Set the balance - volume difference between left-right.
christi_s 2:5bab956cb59e 325 *
christi_s 2:5bab956cb59e 326 * @param balance
christi_s 2:5bab956cb59e 327 * Difference in dB.
christi_s 2:5bab956cb59e 328 */
christi_s 2:5bab956cb59e 329 void setBalance(float balance = DEFAULT_BALANCE_DIFERENCE_LEFT_RIGHT);
christi_s 2:5bab956cb59e 330
christi_s 2:5bab956cb59e 331 /** Get the balance - volume difference between left-right.
christi_s 2:5bab956cb59e 332 *
christi_s 2:5bab956cb59e 333 * @return
christi_s 2:5bab956cb59e 334 * Difference in dB.
christi_s 2:5bab956cb59e 335 */
christi_s 1:ced2c297cc1b 336 float getBalance();
christi_s 2:5bab956cb59e 337
christi_s 2:5bab956cb59e 338 /** Get the treble frequency limit.
christi_s 2:5bab956cb59e 339 *
christi_s 2:5bab956cb59e 340 * @return
christi_s 2:5bab956cb59e 341 * Frequenzy 1000, 2000 .. 15000Hz.
christi_s 2:5bab956cb59e 342 */
christi_s 2:5bab956cb59e 343 int getTrebleFrequency(void);
christi_s 2:5bab956cb59e 344 /** Set the treble frequency limit.
christi_s 2:5bab956cb59e 345 *
christi_s 2:5bab956cb59e 346 * @param frequency
christi_s 2:5bab956cb59e 347 * Frequenzy 1000, 2000, .. 15000Hz.
christi_s 2:5bab956cb59e 348 */
christi_s 2:5bab956cb59e 349 void setTrebleFrequency(int frequency = DEFAULT_TREBLE_FREQUENCY);
christi_s 1:ced2c297cc1b 350
christi_s 2:5bab956cb59e 351 /** Get the treble amplitude.
christi_s 2:5bab956cb59e 352 *
christi_s 2:5bab956cb59e 353 * @return
christi_s 2:5bab956cb59e 354 * Amplitude -8 .. 7dB (in 1.5dB steps); 0 = off.
christi_s 2:5bab956cb59e 355 */
christi_s 2:5bab956cb59e 356 int getTrebleAmplitude(void);
christi_s 2:5bab956cb59e 357 /** Set the treble amplitude.
christi_s 2:5bab956cb59e 358 *
christi_s 2:5bab956cb59e 359 * @param amplitude
christi_s 2:5bab956cb59e 360 * Amplitude -8 .. 7dB (in 1.5dB steps); 0 = off.
christi_s 2:5bab956cb59e 361 */
christi_s 2:5bab956cb59e 362 void setTrebleAmplitude(int amplitude = DEFAULT_TREBLE_AMPLITUDE);
christi_s 1:ced2c297cc1b 363
christi_s 2:5bab956cb59e 364 /** Get the bass frequency limit.
christi_s 2:5bab956cb59e 365 *
christi_s 2:5bab956cb59e 366 * @return
christi_s 2:5bab956cb59e 367 * Frequenzy 20, 30, .. 150Hz.
christi_s 2:5bab956cb59e 368 */
christi_s 2:5bab956cb59e 369 int getBassFrequency(void);
christi_s 2:5bab956cb59e 370 /** Set the bass frequency limit.
christi_s 2:5bab956cb59e 371 *
christi_s 2:5bab956cb59e 372 * @param frequency
christi_s 2:5bab956cb59e 373 * Frequenzy 20, 30, .. 150Hz.
christi_s 2:5bab956cb59e 374 */
christi_s 2:5bab956cb59e 375 void setBassFrequency(int frequency= DEFAULT_BASS_FREQUENCY);
christi_s 2:5bab956cb59e 376
christi_s 2:5bab956cb59e 377 /** Get the bass amplitude.
christi_s 2:5bab956cb59e 378 *
christi_s 2:5bab956cb59e 379 * @return
christi_s 2:5bab956cb59e 380 * Amplitude 0 .. 15dB (in 1dB steps); 0 = off.
christi_s 2:5bab956cb59e 381 */
christi_s 2:5bab956cb59e 382 int getBassAmplitude(void);
christi_s 2:5bab956cb59e 383 /** Set the bass amplitude.
christi_s 2:5bab956cb59e 384 *
christi_s 2:5bab956cb59e 385 * @param amplitude
christi_s 2:5bab956cb59e 386 * Amplitude 0 .. 15dB (in 1dB steps); 0 = off.
christi_s 2:5bab956cb59e 387 */
christi_s 2:5bab956cb59e 388 void setBassAmplitude(int amplitude = DEFAULT_BASS_AMPLITUDE);
christi_s 2:5bab956cb59e 389
christi_s 2:5bab956cb59e 390 /** Set the speed of a playback.
christi_s 2:5bab956cb59e 391 *
christi_s 2:5bab956cb59e 392 * @param speed
christi_s 5:ead95c0f7800 393 * Speed 0, 1, .. (0, 1 normal speed).
christi_s 5:ead95c0f7800 394 * Speeds greater 2 are not recommended, buffer must be filled quickly enough.
christi_s 2:5bab956cb59e 395 */
christi_s 4:cacb5e663fa9 396 void setPlaySpeed(unsigned short speed);
christi_s 4:cacb5e663fa9 397
christi_s 5:ead95c0f7800 398 /** Copy a byte into the audio data buffer.
christi_s 5:ead95c0f7800 399 *
christi_s 5:ead95c0f7800 400 * @param c
christi_s 5:ead95c0f7800 401 * Data for the buffer.
christi_s 5:ead95c0f7800 402 *
christi_s 5:ead95c0f7800 403 * @return
christi_s 5:ead95c0f7800 404 * TRUE on success; FALSE on failure, c isn't copied in the buffer.
christi_s 5:ead95c0f7800 405 */
christi_s 8:5e4a21202223 406 bool bufferSetByte(char c);
christi_s 5:ead95c0f7800 407
christi_s 5:ead95c0f7800 408 /** Copy a array of bytes into the audio data buffer.
christi_s 5:ead95c0f7800 409 *
christi_s 5:ead95c0f7800 410 * @param s
christi_s 5:ead95c0f7800 411 * Data for the buffer.
christi_s 5:ead95c0f7800 412 *
christi_s 5:ead95c0f7800 413 * @param length
christi_s 5:ead95c0f7800 414 * Size of data array.
christi_s 5:ead95c0f7800 415 *
christi_s 5:ead95c0f7800 416 * @return
christi_s 5:ead95c0f7800 417 * TRUE on success; FALSE on failure, s isn't copied in the buffer.
christi_s 5:ead95c0f7800 418 */
christi_s 8:5e4a21202223 419 bool bufferPutStream(const char *s, unsigned int length);
christi_s 5:ead95c0f7800 420
christi_s 5:ead95c0f7800 421 /** Get the free space of the audio data buffer.
christi_s 5:ead95c0f7800 422 *
christi_s 5:ead95c0f7800 423 * @return
christi_s 5:ead95c0f7800 424 * Space 0 .. BUFFER_SIZE - 1.
christi_s 5:ead95c0f7800 425 */
christi_s 4:cacb5e663fa9 426 unsigned int bufferFree(void);
christi_s 5:ead95c0f7800 427
christi_s 5:ead95c0f7800 428 /** Get the busy space of the audio data buffer.
christi_s 5:ead95c0f7800 429 *
christi_s 5:ead95c0f7800 430 * @return
christi_s 5:ead95c0f7800 431 * Space 0 .. BUFFER_SIZE - 1.
christi_s 5:ead95c0f7800 432 */
christi_s 8:5e4a21202223 433 unsigned int bufferCount(void);
christi_s 8:5e4a21202223 434
christi_s 8:5e4a21202223 435 /** Complete length of the audio buffer.
christi_s 8:5e4a21202223 436 *
christi_s 8:5e4a21202223 437 * @return
christi_s 8:5e4a21202223 438 * Buffer length.
christi_s 8:5e4a21202223 439 */
christi_s 8:5e4a21202223 440 unsigned int bufferLength(void);
christi_s 4:cacb5e663fa9 441
christi_s 5:ead95c0f7800 442 /** Start playing audio from buffer.
christi_s 5:ead95c0f7800 443 *
christi_s 5:ead95c0f7800 444 */
christi_s 4:cacb5e663fa9 445 void play(void);
christi_s 5:ead95c0f7800 446
christi_s 5:ead95c0f7800 447 /** Interrupt the playback.
christi_s 5:ead95c0f7800 448 *
christi_s 5:ead95c0f7800 449 */
christi_s 4:cacb5e663fa9 450 void pause(void);
christi_s 5:ead95c0f7800 451
christi_s 5:ead95c0f7800 452 /** Stop the playback in the middle of a song.
christi_s 5:ead95c0f7800 453 * After this call, you can now send the next audio file to buffer.
christi_s 5:ead95c0f7800 454 *
christi_s 5:ead95c0f7800 455 */
christi_s 4:cacb5e663fa9 456 void stop(void);
christi_s 6:eed008905159 457
christi_s 6:eed008905159 458 /** Get information about played audio stream.
christi_s 6:eed008905159 459 *
christi_s 6:eed008905159 460 * @param aInfo
christi_s 6:eed008905159 461 * Return value for the informations.
christi_s 6:eed008905159 462 *
christi_s 6:eed008905159 463 */
christi_s 6:eed008905159 464 void getAudioInfo(AudioInfo* aInfo);
christi_s 1:ced2c297cc1b 465
christi_s 1:ced2c297cc1b 466 protected:
christi_s 1:ced2c297cc1b 467 unsigned short int wram_read(unsigned short int);
christi_s 1:ced2c297cc1b 468 void wram_write(unsigned short int, unsigned short int);
christi_s 1:ced2c297cc1b 469 void write_plugin(const unsigned short* , unsigned int);
christi_s 0:7728d9c6c487 470 void cs_low(void);
christi_s 0:7728d9c6c487 471 void cs_high(void);
christi_s 0:7728d9c6c487 472 void dcs_low(void);
christi_s 0:7728d9c6c487 473 void dcs_high(void);
christi_s 0:7728d9c6c487 474 void sci_en(void);
christi_s 0:7728d9c6c487 475 void sci_dis(void);
christi_s 0:7728d9c6c487 476 void sdi_en(void);
christi_s 0:7728d9c6c487 477 void sdi_dis(void);
christi_s 0:7728d9c6c487 478
christi_s 1:ced2c297cc1b 479 void spi_initialise(void);
christi_s 1:ced2c297cc1b 480
christi_s 0:7728d9c6c487 481 void sdi_initialise(void);
christi_s 0:7728d9c6c487 482
christi_s 0:7728d9c6c487 483 void sci_write(unsigned char, unsigned short int);
christi_s 0:7728d9c6c487 484 void sdi_write(unsigned char);
christi_s 0:7728d9c6c487 485 unsigned short int sci_read(unsigned short int);
christi_s 0:7728d9c6c487 486 void sine_test_activate(unsigned char);
christi_s 0:7728d9c6c487 487
christi_s 0:7728d9c6c487 488 void sine_test_deactivate(void);
christi_s 0:7728d9c6c487 489
christi_s 1:ced2c297cc1b 490 void changeVolume(void);
christi_s 4:cacb5e663fa9 491
christi_s 1:ced2c297cc1b 492
christi_s 2:5bab956cb59e 493 // TODO
christi_s 2:5bab956cb59e 494 void power_down(void);
christi_s 4:cacb5e663fa9 495
christi_s 2:5bab956cb59e 496 void changeBass(void);
christi_s 1:ced2c297cc1b 497
christi_s 4:cacb5e663fa9 498 unsigned char bufferGetByte(void);
christi_s 4:cacb5e663fa9 499 void bufferReset(void);
christi_s 4:cacb5e663fa9 500 void dataRequestHandler(void);
christi_s 2:5bab956cb59e 501
christi_s 4:cacb5e663fa9 502 SPI _spi;
christi_s 4:cacb5e663fa9 503 DigitalOut _CS;
christi_s 4:cacb5e663fa9 504 DigitalOut _RST;
christi_s 4:cacb5e663fa9 505 DigitalOut _DCS;
christi_s 4:cacb5e663fa9 506 DigitalIn _DREQ;
christi_s 4:cacb5e663fa9 507 InterruptIn _DREQ_INTERUPT_IN;
christi_s 4:cacb5e663fa9 508
christi_s 8:5e4a21202223 509 char* _buffer;
christi_s 8:5e4a21202223 510 char* _bufferReadPointer;
christi_s 8:5e4a21202223 511 char* _bufferWritePointer;
christi_s 8:5e4a21202223 512 int BUFFER_SIZE;
christi_s 4:cacb5e663fa9 513
christi_s 4:cacb5e663fa9 514 bool _isIdle;
christi_s 4:cacb5e663fa9 515
christi_s 2:5bab956cb59e 516 // variables to save
christi_s 2:5bab956cb59e 517 // volume, values in db
christi_s 4:cacb5e663fa9 518 float _balance;
christi_s 4:cacb5e663fa9 519 float _volume;
christi_s 2:5bab956cb59e 520 // bass enhancer settings
christi_s 4:cacb5e663fa9 521 int _sb_amplitude;
christi_s 4:cacb5e663fa9 522 int _sb_freqlimit;
christi_s 4:cacb5e663fa9 523 int _st_amplitude;
christi_s 8:5e4a21202223 524 int _st_freqlimit;
christi_s 8:5e4a21202223 525
christi_s 4:cacb5e663fa9 526
christi_s 4:cacb5e663fa9 527 Ticker timer;
christi_s 4:cacb5e663fa9 528
christi_s 6:eed008905159 529 static const char _sampleRateTable[4][4]; // _sampleRateTable[id][srate]
christi_s 6:eed008905159 530
christi_s 0:7728d9c6c487 531 };
christi_s 4:cacb5e663fa9 532
christi_s 0:7728d9c6c487 533 #endif