ban4jp - / VS1053b_mod

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

Fork of VS1053b by Christian Schmiljun

VS1053.cpp@6:eed008905159, 2011-01-08 (annotated)

Committer:
christi_s
Date:
Sat Jan 08 15:45:58 2011 +0000
Revision:
6:eed008905159
Parent:
5:ead95c0f7800
Child:
8:5e4a21202223
fix loading VS1053_PATCH_1_5

add audio stream information

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