ban4jp - / VS1053b_mod

Add the RTOS processing. for the Network radio streaming receiver.

Fork of VS1053b by Christian Schmiljun

VS1053.cpp@8:5e4a21202223, 2011-01-12 (annotated)

Committer:
christi_s
Date:
Wed Jan 12 18:30:28 2011 +0000
Revision:
8:5e4a21202223
Parent:
6:eed008905159
Child:
10:114ac02a3875
change buffer functions const unsigned char* -> const char*

change ctor -> create buffer external; you can have more than one VS1053b with different buffer sizes

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 0:7728d9c6c487 29 #include "VS1053.h"
christi_s 0:7728d9c6c487 30 #include "mbed.h"
christi_s 0:7728d9c6c487 31
christi_s 0:7728d9c6c487 32 // patch binarys
christi_s 0:7728d9c6c487 33 #include "Patches/VS1053b_patch_1_5.c"
christi_s 0:7728d9c6c487 34 #include "Patches/VS1053b_patch_1_5_flac.c"
christi_s 0:7728d9c6c487 35 #include "Patches/VS1053b_patch_1_4_flac.c"
christi_s 1:ced2c297cc1b 36 #include "Patches/VS1053b_specana_0_9.c"
christi_s 1:ced2c297cc1b 37 #include "Patches/VS1053b_pcm_recorder_0_9.c"
christi_s 0:7728d9c6c487 38
christi_s 6:eed008905159 39 const char VS1053::_sampleRateTable[4][4] = {
christi_s 6:eed008905159 40 11, 12, 8, 0,
christi_s 6:eed008905159 41 11, 12, 8, 0,
christi_s 6:eed008905159 42 22, 24, 16, 0,
christi_s 6:eed008905159 43 44, 48, 32, 0
christi_s 6:eed008905159 44 };
christi_s 4:cacb5e663fa9 45
christi_s 0:7728d9c6c487 46 /* ==================================================================
christi_s 0:7728d9c6c487 47 * Constructor
christi_s 0:7728d9c6c487 48 * =================================================================*/
christi_s 0:7728d9c6c487 49 VS1053::VS1053(
christi_s 0:7728d9c6c487 50 PinName mosi, PinName miso, PinName sck, PinName cs, PinName rst,
christi_s 8:5e4a21202223 51 PinName dreq, PinName dcs, char* buffer, int buffer_size)
christi_s 0:7728d9c6c487 52 :
christi_s 0:7728d9c6c487 53 _spi(mosi, miso, sck),
christi_s 0:7728d9c6c487 54 _CS(cs),
christi_s 0:7728d9c6c487 55 _RST(rst),
christi_s 4:cacb5e663fa9 56 _DCS(dcs),
christi_s 4:cacb5e663fa9 57 _DREQ(dreq),
christi_s 4:cacb5e663fa9 58 _DREQ_INTERUPT_IN(dreq)
christi_s 2:5bab956cb59e 59 {
christi_s 1:ced2c297cc1b 60 _volume = DEFAULT_VOLUME;
christi_s 1:ced2c297cc1b 61 _balance = DEFAULT_BALANCE_DIFERENCE_LEFT_RIGHT;
christi_s 2:5bab956cb59e 62 _sb_amplitude = DEFAULT_BASS_AMPLITUDE;
christi_s 2:5bab956cb59e 63 _sb_freqlimit = DEFAULT_BASS_FREQUENCY;
christi_s 2:5bab956cb59e 64 _st_amplitude = DEFAULT_TREBLE_AMPLITUDE;
christi_s 4:cacb5e663fa9 65 _st_freqlimit = DEFAULT_TREBLE_FREQUENCY;
christi_s 8:5e4a21202223 66 _buffer = buffer;
christi_s 8:5e4a21202223 67 BUFFER_SIZE = buffer_size;
christi_s 4:cacb5e663fa9 68 _DREQ_INTERUPT_IN.mode(PullDown);
christi_s 4:cacb5e663fa9 69 INTERRUPT_HANDLER_DISABLE;
christi_s 4:cacb5e663fa9 70 bufferReset();
christi_s 0:7728d9c6c487 71 }
christi_s 0:7728d9c6c487 72
christi_s 8:5e4a21202223 73
christi_s 0:7728d9c6c487 74 /*===================================================================
christi_s 0:7728d9c6c487 75 * Functions
christi_s 0:7728d9c6c487 76 *==================================================================*/
christi_s 0:7728d9c6c487 77
christi_s 0:7728d9c6c487 78 void VS1053::cs_low(void) {
christi_s 0:7728d9c6c487 79 _CS = 0;
christi_s 0:7728d9c6c487 80 }
christi_s 0:7728d9c6c487 81 void VS1053::cs_high(void) {
christi_s 0:7728d9c6c487 82 _CS = 1;
christi_s 0:7728d9c6c487 83 }
christi_s 0:7728d9c6c487 84 void VS1053::dcs_low(void) {
christi_s 0:7728d9c6c487 85 _DCS = 0;
christi_s 0:7728d9c6c487 86
christi_s 0:7728d9c6c487 87 }
christi_s 0:7728d9c6c487 88 void VS1053::dcs_high(void) {
christi_s 0:7728d9c6c487 89 _DCS = 1;
christi_s 0:7728d9c6c487 90 }
christi_s 0:7728d9c6c487 91 void VS1053::sci_en(void) { //SCI enable
christi_s 0:7728d9c6c487 92 cs_high();
christi_s 0:7728d9c6c487 93 dcs_high();
christi_s 0:7728d9c6c487 94 cs_low();
christi_s 0:7728d9c6c487 95 }
christi_s 0:7728d9c6c487 96 void VS1053::sci_dis(void) { //SCI disable
christi_s 0:7728d9c6c487 97 cs_high();
christi_s 0:7728d9c6c487 98 }
christi_s 0:7728d9c6c487 99 void VS1053::sdi_en(void) { //SDI enable
christi_s 0:7728d9c6c487 100 dcs_high();
christi_s 0:7728d9c6c487 101 cs_high();
christi_s 0:7728d9c6c487 102 dcs_low();
christi_s 0:7728d9c6c487 103 }
christi_s 0:7728d9c6c487 104 void VS1053::sdi_dis(void) { //SDI disable
christi_s 0:7728d9c6c487 105 dcs_high();
christi_s 0:7728d9c6c487 106 }
christi_s 0:7728d9c6c487 107 void VS1053::reset(void) { //hardware reset
christi_s 4:cacb5e663fa9 108 INTERRUPT_HANDLER_DISABLE;
christi_s 0:7728d9c6c487 109 wait_ms(10);
christi_s 0:7728d9c6c487 110 _RST = 0;
christi_s 0:7728d9c6c487 111 wait_ms(5);
christi_s 0:7728d9c6c487 112 _RST = 1;
christi_s 0:7728d9c6c487 113 wait_ms(10);
christi_s 0:7728d9c6c487 114 }
christi_s 0:7728d9c6c487 115 void VS1053::power_down(void) { //hardware and software reset
christi_s 0:7728d9c6c487 116 cs_low();
christi_s 0:7728d9c6c487 117 reset();
christi_s 0:7728d9c6c487 118 // sci_write(0x00, SM_PDOWN);
christi_s 0:7728d9c6c487 119 sci_write(0x00, 0x10); // tempo
christi_s 0:7728d9c6c487 120 wait(0.01);
christi_s 0:7728d9c6c487 121 reset();
christi_s 0:7728d9c6c487 122 }
christi_s 1:ced2c297cc1b 123 void VS1053::spi_initialise(void) {
christi_s 0:7728d9c6c487 124 _RST = 1; //no reset
christi_s 0:7728d9c6c487 125 _spi.format(8,0); //spi 8bit interface, steady state low
christi_s 0:7728d9c6c487 126 // _spi.frequency(1000000); //rising edge data record, freq. 1Mhz
christi_s 0:7728d9c6c487 127 _spi.frequency(2000000); //rising edge data record, freq. 2Mhz
christi_s 0:7728d9c6c487 128
christi_s 0:7728d9c6c487 129
christi_s 0:7728d9c6c487 130 cs_low();
christi_s 0:7728d9c6c487 131 for (int i=0; i<4; i++) {
christi_s 0:7728d9c6c487 132 _spi.write(0xFF); //clock the chip a bit
christi_s 0:7728d9c6c487 133 }
christi_s 0:7728d9c6c487 134 cs_high();
christi_s 0:7728d9c6c487 135 dcs_high();
christi_s 0:7728d9c6c487 136 wait_us(5);
christi_s 0:7728d9c6c487 137 }
christi_s 0:7728d9c6c487 138 void VS1053::sdi_initialise(void) {
christi_s 1:ced2c297cc1b 139 _spi.frequency(8000000); //set to 8 MHz to make fast transfer
christi_s 0:7728d9c6c487 140 cs_high();
christi_s 0:7728d9c6c487 141 dcs_high();
christi_s 0:7728d9c6c487 142 }
christi_s 0:7728d9c6c487 143 void VS1053::sci_write(unsigned char address, unsigned short int data) {
christi_s 4:cacb5e663fa9 144 // TODO disable all interrupts
christi_s 4:cacb5e663fa9 145 __disable_irq();
christi_s 0:7728d9c6c487 146 sci_en(); //enables SCI/disables SDI
christi_s 0:7728d9c6c487 147
christi_s 0:7728d9c6c487 148 while (!_DREQ); //wait unitl data request is high
christi_s 0:7728d9c6c487 149 _spi.write(0x02); //SCI write
christi_s 0:7728d9c6c487 150 _spi.write(address); //register address
christi_s 0:7728d9c6c487 151 _spi.write((data >> 8) & 0xFF); //write out first half of data word
christi_s 0:7728d9c6c487 152 _spi.write(data & 0xFF); //write out second half of data word
christi_s 0:7728d9c6c487 153
christi_s 0:7728d9c6c487 154 sci_dis(); //enables SDI/disables SCI
christi_s 0:7728d9c6c487 155 wait_us(5);
christi_s 4:cacb5e663fa9 156
christi_s 4:cacb5e663fa9 157 // TODO enable all interrupts
christi_s 4:cacb5e663fa9 158 __enable_irq();
christi_s 0:7728d9c6c487 159 }
christi_s 4:cacb5e663fa9 160 void VS1053::sdi_write(unsigned char datum) {
christi_s 4:cacb5e663fa9 161
christi_s 0:7728d9c6c487 162 sdi_en();
christi_s 0:7728d9c6c487 163
christi_s 0:7728d9c6c487 164 while (!_DREQ);
christi_s 0:7728d9c6c487 165 _spi.write(datum);
christi_s 0:7728d9c6c487 166
christi_s 4:cacb5e663fa9 167 sdi_dis();
christi_s 0:7728d9c6c487 168 }
christi_s 1:ced2c297cc1b 169 unsigned short VS1053::sci_read(unsigned short int address) {
christi_s 4:cacb5e663fa9 170 // TODO disable all interrupts
christi_s 4:cacb5e663fa9 171 __disable_irq();
christi_s 4:cacb5e663fa9 172
christi_s 0:7728d9c6c487 173 cs_low(); //enables SCI/disables SDI
christi_s 0:7728d9c6c487 174
christi_s 0:7728d9c6c487 175 while (!_DREQ); //wait unitl data request is high
christi_s 0:7728d9c6c487 176 _spi.write(0x03); //SCI write
christi_s 0:7728d9c6c487 177 _spi.write(address); //register address
christi_s 0:7728d9c6c487 178 unsigned short int received = _spi.write(0x00); //write out dummy byte
christi_s 0:7728d9c6c487 179 received <<= 8;
christi_s 4:cacb5e663fa9 180 received |= _spi.write(0x00); //write out dummy byte
christi_s 0:7728d9c6c487 181
christi_s 0:7728d9c6c487 182 cs_high(); //enables SDI/disables SCI
christi_s 0:7728d9c6c487 183
christi_s 4:cacb5e663fa9 184 // TODO enable all interrupts
christi_s 4:cacb5e663fa9 185 __enable_irq();
christi_s 0:7728d9c6c487 186 return received; //return received word
christi_s 0:7728d9c6c487 187 }
christi_s 0:7728d9c6c487 188 void VS1053::sine_test_activate(unsigned char wave) {
christi_s 0:7728d9c6c487 189 cs_high(); //enables SDI/disables SCI
christi_s 0:7728d9c6c487 190
christi_s 0:7728d9c6c487 191 while (!_DREQ); //wait unitl data request is high
christi_s 0:7728d9c6c487 192 _spi.write(0x53); //SDI write
christi_s 0:7728d9c6c487 193 _spi.write(0xEF); //SDI write
christi_s 0:7728d9c6c487 194 _spi.write(0x6E); //SDI write
christi_s 0:7728d9c6c487 195 _spi.write(wave); //SDI write
christi_s 0:7728d9c6c487 196 _spi.write(0x00); //filler byte
christi_s 0:7728d9c6c487 197 _spi.write(0x00); //filler byte
christi_s 0:7728d9c6c487 198 _spi.write(0x00); //filler byte
christi_s 0:7728d9c6c487 199 _spi.write(0x00); //filler byte
christi_s 0:7728d9c6c487 200
christi_s 0:7728d9c6c487 201 cs_low(); //enables SCI/disables SDI
christi_s 0:7728d9c6c487 202 }
christi_s 0:7728d9c6c487 203 void VS1053::sine_test_deactivate(void) {
christi_s 0:7728d9c6c487 204 cs_high();
christi_s 0:7728d9c6c487 205
christi_s 0:7728d9c6c487 206 while (!_DREQ);
christi_s 0:7728d9c6c487 207 _spi.write(0x45); //SDI write
christi_s 0:7728d9c6c487 208 _spi.write(0x78); //SDI write
christi_s 0:7728d9c6c487 209 _spi.write(0x69); //SDI write
christi_s 0:7728d9c6c487 210 _spi.write(0x74); //SDI write
christi_s 0:7728d9c6c487 211 _spi.write(0x00); //filler byte
christi_s 0:7728d9c6c487 212 _spi.write(0x00); //filler byte
christi_s 0:7728d9c6c487 213 _spi.write(0x00); //filler byte
christi_s 0:7728d9c6c487 214 _spi.write(0x00); //filler byte
christi_s 0:7728d9c6c487 215 }
christi_s 0:7728d9c6c487 216
christi_s 0:7728d9c6c487 217 unsigned short int VS1053::wram_read(unsigned short int address) {
christi_s 0:7728d9c6c487 218 unsigned short int tmp1,tmp2;
christi_s 0:7728d9c6c487 219 sci_write(SCI_WRAMADDR,address);
christi_s 0:7728d9c6c487 220 tmp1=sci_read(SCI_WRAM);
christi_s 0:7728d9c6c487 221 sci_write(SCI_WRAMADDR,address);
christi_s 0:7728d9c6c487 222 tmp2=sci_read(SCI_WRAM);
christi_s 0:7728d9c6c487 223 if (tmp1==tmp2) return tmp1;
christi_s 0:7728d9c6c487 224 sci_write(SCI_WRAMADDR,address);
christi_s 0:7728d9c6c487 225 tmp1=sci_read(SCI_WRAM);
christi_s 0:7728d9c6c487 226 if (tmp1==tmp2) return tmp1;
christi_s 0:7728d9c6c487 227 sci_write(SCI_WRAMADDR,address);
christi_s 0:7728d9c6c487 228 tmp1=sci_read(SCI_WRAM);
christi_s 0:7728d9c6c487 229 if (tmp1==tmp2) return tmp1;
christi_s 0:7728d9c6c487 230 return tmp1;
christi_s 0:7728d9c6c487 231 }
christi_s 0:7728d9c6c487 232
christi_s 0:7728d9c6c487 233 void VS1053::wram_write(unsigned short int address, unsigned short int data) {
christi_s 0:7728d9c6c487 234 sci_write(SCI_WRAMADDR,address);
christi_s 0:7728d9c6c487 235 sci_write(SCI_WRAM,data);
christi_s 0:7728d9c6c487 236 return;
christi_s 0:7728d9c6c487 237 }
christi_s 0:7728d9c6c487 238
christi_s 1:ced2c297cc1b 239 void VS1053::setPlaySpeed(unsigned short speed)
christi_s 1:ced2c297cc1b 240 {
christi_s 1:ced2c297cc1b 241 wram_write(para_playSpeed, speed);
christi_s 2:5bab956cb59e 242 DEBUGOUT("VS1053b: Change speed. New speed: %d\r\n", speed);
christi_s 1:ced2c297cc1b 243 }
christi_s 0:7728d9c6c487 244
christi_s 0:7728d9c6c487 245 void VS1053::terminateStream(void) {
christi_s 4:cacb5e663fa9 246 while(bufferCount() > 0)
christi_s 4:cacb5e663fa9 247 ;
christi_s 4:cacb5e663fa9 248 DEBUGOUT("VS1053b: Song terminating..\r\n");
christi_s 1:ced2c297cc1b 249 // send at least 2052 bytes of endFillByte[7:0].
christi_s 1:ced2c297cc1b 250 // read endFillByte (0 .. 15) from wram
christi_s 1:ced2c297cc1b 251 unsigned short endFillByte=wram_read(para_endFillByte);
christi_s 1:ced2c297cc1b 252 // clear endFillByte (8 .. 15)
christi_s 1:ced2c297cc1b 253 endFillByte = endFillByte ^0x00FF;
christi_s 1:ced2c297cc1b 254 for (int n = 0; n < 2052; n++)
christi_s 1:ced2c297cc1b 255 sdi_write(endFillByte);
christi_s 1:ced2c297cc1b 256
christi_s 1:ced2c297cc1b 257 // set SCI MODE bit SM CANCEL
christi_s 1:ced2c297cc1b 258 unsigned short sciModeByte = sci_read(SCI_MODE);
christi_s 1:ced2c297cc1b 259 sciModeByte |= SM_CANCEL;
christi_s 1:ced2c297cc1b 260 sci_write(SCI_MODE, sciModeByte);
christi_s 1:ced2c297cc1b 261
christi_s 1:ced2c297cc1b 262 // send up 2048 bytes of endFillByte[7:0].
christi_s 1:ced2c297cc1b 263 for (int i = 0; i < 64; i++)
christi_s 1:ced2c297cc1b 264 {
christi_s 1:ced2c297cc1b 265 // send at least 32 bytes of endFillByte[7:0]
christi_s 1:ced2c297cc1b 266 for (int n = 0; n < 32; n++)
christi_s 1:ced2c297cc1b 267 sdi_write(endFillByte);
christi_s 1:ced2c297cc1b 268 // read SCI MODE; if SM CANCEL is still set, repeat
christi_s 1:ced2c297cc1b 269 sciModeByte = sci_read(SCI_MODE);
christi_s 1:ced2c297cc1b 270 if ((sciModeByte & SM_CANCEL) == 0x0000)
christi_s 1:ced2c297cc1b 271 {
christi_s 1:ced2c297cc1b 272 break;
christi_s 1:ced2c297cc1b 273 }
christi_s 1:ced2c297cc1b 274 }
christi_s 1:ced2c297cc1b 275
christi_s 1:ced2c297cc1b 276 if ((sciModeByte & SM_CANCEL) == 0x0000)
christi_s 1:ced2c297cc1b 277 {
christi_s 2:5bab956cb59e 278 DEBUGOUT("VS1053b: Song sucessfully sent. Terminating OK\r\n");
christi_s 2:5bab956cb59e 279 DEBUGOUT("VS1053b: SCI MODE = %#x, SM_CANCEL = %#x\r\n", sciModeByte, sciModeByte & SM_CANCEL);
christi_s 6:eed008905159 280 sci_write(SCI_DECODE_TIME, 0x0000);
christi_s 1:ced2c297cc1b 281 }
christi_s 1:ced2c297cc1b 282 else
christi_s 1:ced2c297cc1b 283 {
christi_s 2:5bab956cb59e 284 DEBUGOUT("VS1053b: SM CANCEL hasn't cleared after sending 2048 bytes, do software reset\r\n");
christi_s 6:eed008905159 285 DEBUGOUT("VS1053b: SCI MODE = %#x, SM_CANCEL = %#x\r\n", sciModeByte, sciModeByte & SM_CANCEL);
christi_s 1:ced2c297cc1b 286 initialize();
christi_s 1:ced2c297cc1b 287 }
christi_s 0:7728d9c6c487 288 }
christi_s 0:7728d9c6c487 289
christi_s 0:7728d9c6c487 290 void VS1053::write_plugin(const unsigned short *plugin, unsigned int len) {
christi_s 0:7728d9c6c487 291 unsigned int i;
christi_s 0:7728d9c6c487 292 unsigned short addr, n, val;
christi_s 0:7728d9c6c487 293
christi_s 0:7728d9c6c487 294 for (i=0; i<len;) {
christi_s 0:7728d9c6c487 295 addr = plugin[i++];
christi_s 0:7728d9c6c487 296 n = plugin[i++];
christi_s 0:7728d9c6c487 297 if (n & 0x8000U) { //RLE run, replicate n samples
christi_s 0:7728d9c6c487 298 n &= 0x7FFF;
christi_s 0:7728d9c6c487 299 val = plugin[i++];
christi_s 0:7728d9c6c487 300 while (n--) {
christi_s 0:7728d9c6c487 301 sci_write(addr,val);
christi_s 0:7728d9c6c487 302 }
christi_s 0:7728d9c6c487 303 } else { //copy run, copy n sample
christi_s 0:7728d9c6c487 304 while (n--) {
christi_s 0:7728d9c6c487 305 val = plugin[i++];
christi_s 0:7728d9c6c487 306 sci_write(addr,val);
christi_s 0:7728d9c6c487 307 }
christi_s 0:7728d9c6c487 308 }
christi_s 0:7728d9c6c487 309 }
christi_s 0:7728d9c6c487 310
christi_s 0:7728d9c6c487 311 return;
christi_s 0:7728d9c6c487 312 }
christi_s 0:7728d9c6c487 313
christi_s 0:7728d9c6c487 314
christi_s 1:ced2c297cc1b 315 bool VS1053::initialize(void) {
christi_s 0:7728d9c6c487 316 _RST = 1;
christi_s 0:7728d9c6c487 317 cs_high(); //chip disabled
christi_s 1:ced2c297cc1b 318 spi_initialise(); //initialise MBED
christi_s 1:ced2c297cc1b 319
christi_s 1:ced2c297cc1b 320 sci_write(SCI_MODE, (SM_SDINEW+SM_RESET)); // set mode reg.
christi_s 0:7728d9c6c487 321 wait_ms(10);
christi_s 1:ced2c297cc1b 322
christi_s 1:ced2c297cc1b 323 #ifdef DEBUG
christi_s 1:ced2c297cc1b 324 unsigned int info = wram_read(para_chipID_0);
christi_s 2:5bab956cb59e 325 DEBUGOUT("VS1053b: ChipID_0:%04X\r\n", info);
christi_s 1:ced2c297cc1b 326 info = wram_read(para_chipID_1);
christi_s 2:5bab956cb59e 327 DEBUGOUT("VS1053b: ChipID_1:%04X\r\n", info);
christi_s 1:ced2c297cc1b 328 info = wram_read(para_version);
christi_s 2:5bab956cb59e 329 DEBUGOUT("VS1053b: Structure version:%04X\r\n", info);
christi_s 0:7728d9c6c487 330 #endif
christi_s 1:ced2c297cc1b 331
christi_s 0:7728d9c6c487 332 //get chip version, set clock multiplier and load patch
christi_s 1:ced2c297cc1b 333 int i = (sci_read(SCI_STATUS) & 0xF0) >> 4;
christi_s 0:7728d9c6c487 334 if (i == 4) {
christi_s 2:5bab956cb59e 335
christi_s 2:5bab956cb59e 336 DEBUGOUT("VS1053b: Installed Chip is: VS1053\r\n");
christi_s 2:5bab956cb59e 337
christi_s 1:ced2c297cc1b 338 sci_write(SCI_CLOCKF, (SC_MULT_XTALIx50));
christi_s 1:ced2c297cc1b 339 wait_ms(10);
christi_s 0:7728d9c6c487 340 #ifdef VS_PATCH
christi_s 0:7728d9c6c487 341 // loading patch
christi_s 1:ced2c297cc1b 342 write_plugin(vs1053b_patch, sizeof(vs1053b_patch)/2);
christi_s 2:5bab956cb59e 343
christi_s 2:5bab956cb59e 344 DEBUGOUT("VS1053b: Patch is loaded.\r\n");
christi_s 2:5bab956cb59e 345 DEBUGOUT("VS1053b: Patch size:%d bytes\r\n",sizeof(vs1053b_patch));
christi_s 1:ced2c297cc1b 346
christi_s 1:ced2c297cc1b 347 #endif // VS_PATCH
christi_s 1:ced2c297cc1b 348 }
christi_s 1:ced2c297cc1b 349 else
christi_s 1:ced2c297cc1b 350 {
christi_s 2:5bab956cb59e 351 DEBUGOUT("VS1053b: Not Supported Chip\r\n");
christi_s 1:ced2c297cc1b 352 return false;
christi_s 1:ced2c297cc1b 353 }
christi_s 1:ced2c297cc1b 354
christi_s 1:ced2c297cc1b 355 // change spi to higher speed
christi_s 1:ced2c297cc1b 356 sdi_initialise();
christi_s 1:ced2c297cc1b 357 changeVolume();
christi_s 4:cacb5e663fa9 358 changeBass();
christi_s 4:cacb5e663fa9 359 _isIdle = true;
christi_s 1:ced2c297cc1b 360 return true;
christi_s 0:7728d9c6c487 361 }
christi_s 0:7728d9c6c487 362
christi_s 1:ced2c297cc1b 363 void VS1053::setVolume(float vol)
christi_s 1:ced2c297cc1b 364 {
christi_s 1:ced2c297cc1b 365 if (vol > -0.5)
christi_s 1:ced2c297cc1b 366 _volume = -0.5;
christi_s 1:ced2c297cc1b 367 else
christi_s 1:ced2c297cc1b 368 _volume = vol;
christi_s 1:ced2c297cc1b 369
christi_s 1:ced2c297cc1b 370 changeVolume();
christi_s 1:ced2c297cc1b 371 }
christi_s 1:ced2c297cc1b 372
christi_s 1:ced2c297cc1b 373 float VS1053::getVolume(void)
christi_s 1:ced2c297cc1b 374 {
christi_s 1:ced2c297cc1b 375 return _volume;
christi_s 0:7728d9c6c487 376 }
christi_s 1:ced2c297cc1b 377
christi_s 1:ced2c297cc1b 378 void VS1053::setBalance(float balance)
christi_s 1:ced2c297cc1b 379 {
christi_s 1:ced2c297cc1b 380 _balance = balance;
christi_s 1:ced2c297cc1b 381
christi_s 1:ced2c297cc1b 382 changeVolume();
christi_s 1:ced2c297cc1b 383 }
christi_s 1:ced2c297cc1b 384
christi_s 1:ced2c297cc1b 385 float VS1053::getBalance(void)
christi_s 1:ced2c297cc1b 386 {
christi_s 1:ced2c297cc1b 387 return _balance;
christi_s 1:ced2c297cc1b 388 }
christi_s 1:ced2c297cc1b 389
christi_s 1:ced2c297cc1b 390 void VS1053::changeVolume(void)
christi_s 1:ced2c297cc1b 391 {
christi_s 1:ced2c297cc1b 392 // volume calculation
christi_s 1:ced2c297cc1b 393 unsigned short volCalced = (((char)(_volume / -0.5f)) << 8) + (char)((_volume - _balance) / -0.5f);
christi_s 1:ced2c297cc1b 394
christi_s 2:5bab956cb59e 395 sci_write(SCI_VOL, volCalced);
christi_s 2:5bab956cb59e 396
christi_s 2:5bab956cb59e 397 DEBUGOUT("VS1053b: Change volume to %#x (%f, Balance = %f)\r\n", volCalced, _volume, _balance);
christi_s 2:5bab956cb59e 398 }
christi_s 2:5bab956cb59e 399
christi_s 2:5bab956cb59e 400 int VS1053::getTrebleFrequency(void)
christi_s 2:5bab956cb59e 401 {
christi_s 2:5bab956cb59e 402 return _st_freqlimit * 1000;
christi_s 2:5bab956cb59e 403 }
christi_s 2:5bab956cb59e 404
christi_s 2:5bab956cb59e 405
christi_s 2:5bab956cb59e 406 void VS1053::setTrebleFrequency(int frequency)
christi_s 2:5bab956cb59e 407 {
christi_s 2:5bab956cb59e 408 frequency /= 1000;
christi_s 2:5bab956cb59e 409
christi_s 2:5bab956cb59e 410 if(frequency < 1)
christi_s 2:5bab956cb59e 411 {
christi_s 2:5bab956cb59e 412 frequency = 1;
christi_s 2:5bab956cb59e 413 }
christi_s 2:5bab956cb59e 414 else if(frequency > 15)
christi_s 2:5bab956cb59e 415 {
christi_s 2:5bab956cb59e 416 frequency = 15;
christi_s 2:5bab956cb59e 417 }
christi_s 2:5bab956cb59e 418 _st_freqlimit = frequency;
christi_s 2:5bab956cb59e 419 changeBass();
christi_s 2:5bab956cb59e 420 }
christi_s 2:5bab956cb59e 421
christi_s 2:5bab956cb59e 422 int VS1053::getTrebleAmplitude(void)
christi_s 2:5bab956cb59e 423 {
christi_s 2:5bab956cb59e 424 return _st_amplitude;
christi_s 2:5bab956cb59e 425 }
christi_s 2:5bab956cb59e 426
christi_s 2:5bab956cb59e 427 void VS1053::setTrebleAmplitude(int amplitude)
christi_s 2:5bab956cb59e 428 {
christi_s 2:5bab956cb59e 429 if(amplitude < -8)
christi_s 2:5bab956cb59e 430 {
christi_s 2:5bab956cb59e 431 amplitude = -8;
christi_s 2:5bab956cb59e 432 }
christi_s 2:5bab956cb59e 433 else if(amplitude > 7)
christi_s 2:5bab956cb59e 434 {
christi_s 2:5bab956cb59e 435 amplitude = 7;
christi_s 2:5bab956cb59e 436 }
christi_s 2:5bab956cb59e 437 _st_amplitude = amplitude;
christi_s 2:5bab956cb59e 438 changeBass();
christi_s 2:5bab956cb59e 439 }
christi_s 1:ced2c297cc1b 440
christi_s 2:5bab956cb59e 441 int VS1053::getBassFrequency(void)
christi_s 2:5bab956cb59e 442 {
christi_s 2:5bab956cb59e 443 return _sb_freqlimit * 10;
christi_s 2:5bab956cb59e 444 }
christi_s 2:5bab956cb59e 445
christi_s 2:5bab956cb59e 446 void VS1053::setBassFrequency(int frequency)
christi_s 2:5bab956cb59e 447 {
christi_s 2:5bab956cb59e 448 frequency /= 10;
christi_s 2:5bab956cb59e 449
christi_s 2:5bab956cb59e 450 if(frequency < 2)
christi_s 2:5bab956cb59e 451 {
christi_s 2:5bab956cb59e 452 frequency = 2;
christi_s 2:5bab956cb59e 453 }
christi_s 2:5bab956cb59e 454 else if(frequency > 15)
christi_s 2:5bab956cb59e 455 {
christi_s 2:5bab956cb59e 456 frequency = 15;
christi_s 2:5bab956cb59e 457 }
christi_s 2:5bab956cb59e 458 _sb_freqlimit = frequency;
christi_s 2:5bab956cb59e 459 changeBass();
christi_s 2:5bab956cb59e 460 }
christi_s 2:5bab956cb59e 461
christi_s 2:5bab956cb59e 462 int VS1053::getBassAmplitude(void)
christi_s 2:5bab956cb59e 463 {
christi_s 2:5bab956cb59e 464 return _sb_amplitude;
christi_s 1:ced2c297cc1b 465 }
christi_s 2:5bab956cb59e 466
christi_s 2:5bab956cb59e 467 void VS1053::setBassAmplitude(int amplitude)
christi_s 2:5bab956cb59e 468 {
christi_s 2:5bab956cb59e 469 if(amplitude < -15)
christi_s 2:5bab956cb59e 470 {
christi_s 2:5bab956cb59e 471 amplitude = -15;
christi_s 2:5bab956cb59e 472 }
christi_s 2:5bab956cb59e 473 else if(amplitude > 0)
christi_s 2:5bab956cb59e 474 {
christi_s 2:5bab956cb59e 475 amplitude = 0;
christi_s 2:5bab956cb59e 476 }
christi_s 2:5bab956cb59e 477 _sb_amplitude = amplitude;
christi_s 2:5bab956cb59e 478 changeBass();
christi_s 2:5bab956cb59e 479 }
christi_s 2:5bab956cb59e 480
christi_s 2:5bab956cb59e 481 void VS1053::changeBass(void)
christi_s 2:5bab956cb59e 482 {
christi_s 2:5bab956cb59e 483 unsigned short bassCalced = ((_st_amplitude & 0x0f) << 12)
christi_s 2:5bab956cb59e 484 | ((_st_freqlimit & 0x0f) << 8)
christi_s 2:5bab956cb59e 485 | ((_sb_amplitude & 0x0f) << 4)
christi_s 2:5bab956cb59e 486 | ((_sb_freqlimit & 0x0f) << 0);
christi_s 2:5bab956cb59e 487
christi_s 2:5bab956cb59e 488 sci_write(SCI_BASS, bassCalced);
christi_s 2:5bab956cb59e 489
christi_s 2:5bab956cb59e 490 DEBUGOUT("VS1053b: Change bass settings to:\r\n")
christi_s 2:5bab956cb59e 491 DEBUGOUT("VS1053b: --Treble: Amplitude=%i, Frequency=%i\r\n", getTrebleAmplitude(), getTrebleFrequency());
christi_s 2:5bab956cb59e 492 DEBUGOUT("VS1053b: --Bass: Amplitude=%i, Frequency=%i\r\n", getBassAmplitude(), getBassFrequency());
christi_s 2:5bab956cb59e 493 }
christi_s 4:cacb5e663fa9 494
christi_s 4:cacb5e663fa9 495 /*===================================================================
christi_s 4:cacb5e663fa9 496 * Buffer handling
christi_s 4:cacb5e663fa9 497 *==================================================================*/
christi_s 8:5e4a21202223 498
christi_s 8:5e4a21202223 499 unsigned int VS1053::bufferLength(void)
christi_s 8:5e4a21202223 500 {
christi_s 8:5e4a21202223 501 return BUFFER_SIZE;
christi_s 8:5e4a21202223 502 }
christi_s 4:cacb5e663fa9 503
christi_s 4:cacb5e663fa9 504 unsigned char VS1053::bufferGetByte(void)
christi_s 4:cacb5e663fa9 505 {
christi_s 4:cacb5e663fa9 506 unsigned char retVal = 0x00;
christi_s 4:cacb5e663fa9 507 if (bufferCount() > 0x00)
christi_s 4:cacb5e663fa9 508 {
christi_s 4:cacb5e663fa9 509 retVal = *_bufferReadPointer++;
christi_s 4:cacb5e663fa9 510 if (_bufferReadPointer >= _buffer + BUFFER_SIZE)
christi_s 4:cacb5e663fa9 511 {
christi_s 4:cacb5e663fa9 512 _bufferReadPointer = _buffer;
christi_s 4:cacb5e663fa9 513 }
christi_s 4:cacb5e663fa9 514 }
christi_s 4:cacb5e663fa9 515 return retVal;
christi_s 4:cacb5e663fa9 516 }
christi_s 4:cacb5e663fa9 517
christi_s 8:5e4a21202223 518 bool VS1053::bufferSetByte(char c)
christi_s 4:cacb5e663fa9 519 {
christi_s 4:cacb5e663fa9 520 if (bufferFree() > 0x00)
christi_s 4:cacb5e663fa9 521 {
christi_s 4:cacb5e663fa9 522 *_bufferWritePointer++ = c;
christi_s 4:cacb5e663fa9 523 if (_bufferWritePointer >= _buffer + BUFFER_SIZE)
christi_s 4:cacb5e663fa9 524 {
christi_s 4:cacb5e663fa9 525 _bufferWritePointer = _buffer;
christi_s 4:cacb5e663fa9 526 }
christi_s 4:cacb5e663fa9 527 return true;
christi_s 4:cacb5e663fa9 528 }
christi_s 4:cacb5e663fa9 529 return false;
christi_s 4:cacb5e663fa9 530 }
christi_s 4:cacb5e663fa9 531
christi_s 8:5e4a21202223 532 bool VS1053::bufferPutStream(const char *s, unsigned int length)
christi_s 4:cacb5e663fa9 533 {
christi_s 4:cacb5e663fa9 534 if (bufferFree() >= length)
christi_s 4:cacb5e663fa9 535 {
christi_s 4:cacb5e663fa9 536 while (length--)
christi_s 4:cacb5e663fa9 537 {
christi_s 4:cacb5e663fa9 538 *_bufferWritePointer++ = *s++;
christi_s 4:cacb5e663fa9 539 if (_bufferWritePointer >= _buffer + BUFFER_SIZE)
christi_s 4:cacb5e663fa9 540 {
christi_s 4:cacb5e663fa9 541 _bufferWritePointer = _buffer;
christi_s 4:cacb5e663fa9 542 }
christi_s 4:cacb5e663fa9 543 }
christi_s 4:cacb5e663fa9 544 return true;
christi_s 4:cacb5e663fa9 545 }
christi_s 4:cacb5e663fa9 546 return false;
christi_s 4:cacb5e663fa9 547 }
christi_s 4:cacb5e663fa9 548
christi_s 4:cacb5e663fa9 549 unsigned int VS1053::bufferFree(void)
christi_s 4:cacb5e663fa9 550 {
christi_s 4:cacb5e663fa9 551 if(_bufferReadPointer > _bufferWritePointer)
christi_s 4:cacb5e663fa9 552 {
christi_s 4:cacb5e663fa9 553 return _bufferReadPointer - _bufferWritePointer - 1;
christi_s 4:cacb5e663fa9 554 }
christi_s 4:cacb5e663fa9 555 else if(_bufferReadPointer < _bufferWritePointer)
christi_s 4:cacb5e663fa9 556 {
christi_s 4:cacb5e663fa9 557 return BUFFER_SIZE - (_bufferWritePointer - _bufferReadPointer) - 1;
christi_s 4:cacb5e663fa9 558 }
christi_s 4:cacb5e663fa9 559 return BUFFER_SIZE - 1;
christi_s 4:cacb5e663fa9 560 }
christi_s 4:cacb5e663fa9 561
christi_s 4:cacb5e663fa9 562 unsigned int VS1053::bufferCount(void)
christi_s 4:cacb5e663fa9 563 {
christi_s 4:cacb5e663fa9 564 return BUFFER_SIZE - bufferFree() - 1;
christi_s 4:cacb5e663fa9 565 }
christi_s 4:cacb5e663fa9 566
christi_s 4:cacb5e663fa9 567 void VS1053::bufferReset(void)
christi_s 4:cacb5e663fa9 568 {
christi_s 4:cacb5e663fa9 569 _bufferReadPointer = _buffer;
christi_s 4:cacb5e663fa9 570 _bufferWritePointer = _buffer;
christi_s 4:cacb5e663fa9 571 }
christi_s 4:cacb5e663fa9 572
christi_s 4:cacb5e663fa9 573
christi_s 4:cacb5e663fa9 574 void VS1053::dataRequestHandler(void)
christi_s 4:cacb5e663fa9 575 {
christi_s 4:cacb5e663fa9 576 if (_isIdle && _DREQ)
christi_s 4:cacb5e663fa9 577 {
christi_s 4:cacb5e663fa9 578 _isIdle = false;
christi_s 4:cacb5e663fa9 579 // write buffer to vs1053b
christi_s 4:cacb5e663fa9 580 unsigned length = bufferCount();
christi_s 4:cacb5e663fa9 581 int i = 0;
christi_s 4:cacb5e663fa9 582 sdi_en();
christi_s 4:cacb5e663fa9 583
christi_s 4:cacb5e663fa9 584 while (length > 0)
christi_s 4:cacb5e663fa9 585 {
christi_s 4:cacb5e663fa9 586 int l2 = (length > 32) ? 32 : length;
christi_s 4:cacb5e663fa9 587 //DEBUGOUT("L2: %i\r\n", l2);
christi_s 4:cacb5e663fa9 588 for( ; l2 != 0; l2--)
christi_s 4:cacb5e663fa9 589 {
christi_s 4:cacb5e663fa9 590 _spi.write(bufferGetByte());
christi_s 4:cacb5e663fa9 591 }
christi_s 4:cacb5e663fa9 592
christi_s 4:cacb5e663fa9 593 length -= l2;
christi_s 4:cacb5e663fa9 594
christi_s 4:cacb5e663fa9 595 if (!_DREQ || i > 4)
christi_s 4:cacb5e663fa9 596 break;
christi_s 4:cacb5e663fa9 597 i++;
christi_s 4:cacb5e663fa9 598 }
christi_s 4:cacb5e663fa9 599
christi_s 4:cacb5e663fa9 600 sdi_dis();
christi_s 4:cacb5e663fa9 601
christi_s 4:cacb5e663fa9 602 _isIdle = true;
christi_s 4:cacb5e663fa9 603 }
christi_s 4:cacb5e663fa9 604 }
christi_s 4:cacb5e663fa9 605
christi_s 4:cacb5e663fa9 606 void VS1053::play(void)
christi_s 4:cacb5e663fa9 607 {
christi_s 4:cacb5e663fa9 608 INTERRUPT_HANDLER_ENABLE;
christi_s 4:cacb5e663fa9 609 DEBUGOUT("VS1053b: Play.\r\n");
christi_s 4:cacb5e663fa9 610 }
christi_s 4:cacb5e663fa9 611
christi_s 4:cacb5e663fa9 612 void VS1053::pause(void)
christi_s 4:cacb5e663fa9 613 {
christi_s 4:cacb5e663fa9 614 INTERRUPT_HANDLER_DISABLE;
christi_s 4:cacb5e663fa9 615 DEBUGOUT("VS1053b: Pause.\r\n");
christi_s 4:cacb5e663fa9 616 }
christi_s 4:cacb5e663fa9 617
christi_s 4:cacb5e663fa9 618 void VS1053::stop(void)
christi_s 4:cacb5e663fa9 619 {
christi_s 4:cacb5e663fa9 620 INTERRUPT_HANDLER_DISABLE;
christi_s 4:cacb5e663fa9 621 __disable_irq();
christi_s 4:cacb5e663fa9 622 DEBUGOUT("VS1053b: Song stoping..\r\n");
christi_s 4:cacb5e663fa9 623 while(!_isIdle)
christi_s 4:cacb5e663fa9 624 ;
christi_s 4:cacb5e663fa9 625
christi_s 4:cacb5e663fa9 626 // set SCI MODE bit SM CANCEL
christi_s 4:cacb5e663fa9 627 unsigned short sciModeByte = sci_read(SCI_MODE);
christi_s 4:cacb5e663fa9 628 sciModeByte |= SM_CANCEL;
christi_s 4:cacb5e663fa9 629 sci_write(SCI_MODE, sciModeByte);
christi_s 4:cacb5e663fa9 630
christi_s 4:cacb5e663fa9 631 // send up 2048 bytes of audio data.
christi_s 4:cacb5e663fa9 632 for (int i = 0; i < 64; i++)
christi_s 4:cacb5e663fa9 633 {
christi_s 4:cacb5e663fa9 634 // send at least 32 bytes of audio data
christi_s 4:cacb5e663fa9 635 int z = bufferCount();
christi_s 4:cacb5e663fa9 636 if (z > 32)
christi_s 4:cacb5e663fa9 637 z = 32;
christi_s 4:cacb5e663fa9 638 for (int n = 0; n < z; n++)
christi_s 4:cacb5e663fa9 639 {
christi_s 4:cacb5e663fa9 640 _spi.write(bufferGetByte());
christi_s 4:cacb5e663fa9 641 }
christi_s 4:cacb5e663fa9 642 // read SCI MODE; if SM CANCEL is still set, repeat
christi_s 4:cacb5e663fa9 643 sciModeByte = sci_read(SCI_MODE);
christi_s 4:cacb5e663fa9 644 if ((sciModeByte & SM_CANCEL) == 0x0000)
christi_s 4:cacb5e663fa9 645 {
christi_s 4:cacb5e663fa9 646 break;
christi_s 4:cacb5e663fa9 647 }
christi_s 4:cacb5e663fa9 648 }
christi_s 4:cacb5e663fa9 649
christi_s 4:cacb5e663fa9 650 if ((sciModeByte & SM_CANCEL) == 0x0000)
christi_s 4:cacb5e663fa9 651 {
christi_s 4:cacb5e663fa9 652 // send at least 2052 bytes of endFillByte[7:0].
christi_s 4:cacb5e663fa9 653 // read endFillByte (0 .. 15) from wram
christi_s 4:cacb5e663fa9 654 unsigned short endFillByte=wram_read(para_endFillByte);
christi_s 4:cacb5e663fa9 655 // clear endFillByte (8 .. 15)
christi_s 4:cacb5e663fa9 656 endFillByte = endFillByte ^0x00FF;
christi_s 4:cacb5e663fa9 657 for (int n = 0; n < 2052; n++)
christi_s 4:cacb5e663fa9 658 sdi_write(endFillByte);
christi_s 4:cacb5e663fa9 659 DEBUGOUT("VS1053b: Song sucessfully stopped.\r\n");
christi_s 4:cacb5e663fa9 660 DEBUGOUT("VS1053b: SCI MODE = %#x, SM_CANCEL = %#x\r\n", sciModeByte, sciModeByte & SM_CANCEL);
christi_s 6:eed008905159 661 sci_write(SCI_DECODE_TIME, 0x0000);
christi_s 4:cacb5e663fa9 662 }
christi_s 4:cacb5e663fa9 663 else
christi_s 4:cacb5e663fa9 664 {
christi_s 4:cacb5e663fa9 665 DEBUGOUT("VS1053b: SM CANCEL hasn't cleared after sending 2048 bytes, do software reset\r\n");
christi_s 6:eed008905159 666 DEBUGOUT("VS1053b: SCI MODE = %#x, SM_CANCEL = %#x\r\n", sciModeByte, sciModeByte & SM_CANCEL);
christi_s 4:cacb5e663fa9 667 initialize();
christi_s 4:cacb5e663fa9 668 }
christi_s 4:cacb5e663fa9 669
christi_s 4:cacb5e663fa9 670 bufferReset();
christi_s 4:cacb5e663fa9 671 __enable_irq();
christi_s 6:eed008905159 672 }
christi_s 6:eed008905159 673
christi_s 6:eed008905159 674 void VS1053::getAudioInfo(AudioInfo* aInfo)
christi_s 6:eed008905159 675 {
christi_s 6:eed008905159 676 // volume calculation
christi_s 6:eed008905159 677 unsigned short hdat0 = sci_read(SCI_HDAT0);
christi_s 6:eed008905159 678 unsigned short hdat1 = sci_read(SCI_HDAT1);
christi_s 6:eed008905159 679
christi_s 6:eed008905159 680 DEBUGOUT("VS1053b: Audio info\r\n");
christi_s 6:eed008905159 681
christi_s 6:eed008905159 682 AudioInfo* retVal = aInfo;
christi_s 6:eed008905159 683 retVal->type = UNKNOWN;
christi_s 6:eed008905159 684
christi_s 6:eed008905159 685 if (hdat1 == 0x7665)
christi_s 6:eed008905159 686 {
christi_s 6:eed008905159 687 // audio is WAV
christi_s 6:eed008905159 688 retVal->type = WAV;
christi_s 6:eed008905159 689 }
christi_s 6:eed008905159 690 else if (hdat1 == 0x4154 || hdat1 == 0x4144 || hdat1 == 0x4D34 )
christi_s 6:eed008905159 691 {
christi_s 6:eed008905159 692 // audio is AAC
christi_s 6:eed008905159 693 retVal->type = AAC;
christi_s 6:eed008905159 694 }
christi_s 6:eed008905159 695 else if (hdat1 == 0x574D )
christi_s 6:eed008905159 696 {
christi_s 6:eed008905159 697 // audio is WMA
christi_s 6:eed008905159 698 retVal->type = WMA;
christi_s 6:eed008905159 699 }
christi_s 6:eed008905159 700 else if (hdat1 == 0x4D54 )
christi_s 6:eed008905159 701 {
christi_s 6:eed008905159 702 // audio is MIDI
christi_s 6:eed008905159 703 retVal->type = MIDI;
christi_s 6:eed008905159 704 }
christi_s 6:eed008905159 705 else if (hdat1 == 0x4F76 )
christi_s 6:eed008905159 706 {
christi_s 6:eed008905159 707 // audio is OGG VORBIS
christi_s 6:eed008905159 708 retVal->type = OGG_VORBIS;
christi_s 6:eed008905159 709 }
christi_s 6:eed008905159 710 else if (hdat1 >= 0xFFE0 && hdat1 <= 0xFFFF)
christi_s 6:eed008905159 711 {
christi_s 6:eed008905159 712 // audio is mp3
christi_s 6:eed008905159 713 retVal->type = MP3;
christi_s 6:eed008905159 714
christi_s 6:eed008905159 715 DEBUGOUT("VS1053b: Audio is mp3\r\n");
christi_s 6:eed008905159 716 retVal->ext.mp3.id = (MP3_ID)((hdat1 >> 3) & 0x0003);
christi_s 6:eed008905159 717 switch((hdat1 >> 1) & 0x0003)
christi_s 6:eed008905159 718 {
christi_s 6:eed008905159 719 case 3:
christi_s 6:eed008905159 720 retVal->ext.mp3.layer = 1;
christi_s 6:eed008905159 721 break;
christi_s 6:eed008905159 722 case 2:
christi_s 6:eed008905159 723 retVal->ext.mp3.layer = 2;
christi_s 6:eed008905159 724 break;
christi_s 6:eed008905159 725 case 1:
christi_s 6:eed008905159 726 retVal->ext.mp3.layer = 3;
christi_s 6:eed008905159 727 break;
christi_s 6:eed008905159 728 default:
christi_s 6:eed008905159 729 retVal->ext.mp3.layer = 0;
christi_s 6:eed008905159 730 break;
christi_s 6:eed008905159 731 }
christi_s 6:eed008905159 732 retVal->ext.mp3.protrectBit = (hdat1 >> 0) & 0x0001;
christi_s 6:eed008905159 733
christi_s 6:eed008905159 734 char srate = (hdat0 >> 10) & 0x0003;
christi_s 6:eed008905159 735 retVal->ext.mp3.kSampleRate = _sampleRateTable[retVal->ext.mp3.id][srate];
christi_s 6:eed008905159 736
christi_s 6:eed008905159 737 retVal->ext.mp3.padBit = (hdat0 >> 9) & 0x0001;
christi_s 6:eed008905159 738 retVal->ext.mp3.mode =(MP3_MODE)((hdat0 >> 6) & 0x0003);
christi_s 6:eed008905159 739 retVal->ext.mp3.extension = (hdat0 >> 4) & 0x0003;
christi_s 6:eed008905159 740 retVal->ext.mp3.copyright = (hdat0 >> 3) & 0x0001;
christi_s 6:eed008905159 741 retVal->ext.mp3.original = (hdat0 >> 2) & 0x0001;
christi_s 6:eed008905159 742 retVal->ext.mp3.emphasis = (hdat0 >> 0) & 0x0003;
christi_s 6:eed008905159 743
christi_s 6:eed008905159 744 DEBUGOUT("VS1053b: ID: %i, Layer: %i, Samplerate: %i, Mode: %i\r\n", retVal->ext.mp3.id, retVal->ext.mp3.layer, retVal->ext.mp3.kSampleRate, retVal->ext.mp3.mode);
christi_s 6:eed008905159 745 }
christi_s 6:eed008905159 746
christi_s 6:eed008905159 747 // read byteRate
christi_s 6:eed008905159 748 unsigned short byteRate = wram_read(para_byteRate);
christi_s 6:eed008905159 749 retVal->kBitRate = (byteRate * 8) / 1000;
christi_s 6:eed008905159 750 DEBUGOUT("VS1053b: BitRate: %i kBit/s\r\n", retVal->kBitRate);
christi_s 6:eed008905159 751
christi_s 6:eed008905159 752 // decode time
christi_s 6:eed008905159 753 retVal->decodeTime = sci_read(SCI_DECODE_TIME);
christi_s 6:eed008905159 754 DEBUGOUT("VS1053b: Decodetime: %i s\r\n", retVal->decodeTime);
christi_s 6:eed008905159 755
christi_s 8:5e4a21202223 756 }