parasiTstudio
/
BALibrary_parasitstudio
forked from wirtz/BALibrary
3
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

General library cleanup, added DMA SPI MEM support

Browse Source
master
Steve Lascos 7 years ago
parent e894318451
commit b649550cb3
24 changed files with 1859 additions and 496 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 114
      examples/Delay/AnalogDelayDemo/AnalogDelayDemo.ino
  2. 19
      examples/Delay/AnalogDelayDemo/name.c
  3. 316
      examples/Tests/DMA_MEM0_test/DMA_MEM0_test.ino
  4. 316
      examples/Tests/DMA_MEM1_test/DMA_MEM1_test.ino
  5. 78
      src/AudioEffectAnalogDelay.h
  6. 6
      src/BAAudioControlWM8731.h
  7. 7
      src/BAGpio.h
  8. 10
      src/BAGuitar.h
  9. 13
      src/BAHardware.h
  10. 17
      src/BASpiMemory.h
  11. 30
      src/BATypes.h
  12. 356
      src/LibBasicFunctions.cpp
  13. 6
      src/LibBasicFunctions.h
  14. 4
      src/LibMemoryManagement.h
  15. 171
      src/common/AudioDelay.cpp
  16. 73
      src/common/AudioHelpers.cpp
  17. 88
      src/common/ExtMemSlot.cpp
  18. 113
      src/common/ExternalSramManager.cpp
  19. 145
      src/common/IirBiquadFilter.cpp
  20. 6
      src/effects/AudioEffectAnalogDelay.cpp
  21. 0
      src/effects/BAAudioEffectDelayExternal.cpp
  22. 0
      src/peripherals/BAAudioControlWM8731.cpp
  23. 0
      src/peripherals/BAGpio.cpp
  24. 467
      src/peripherals/BASpiMemory.cpp

114
examples/Delay/AnalogDelayDemo/AnalogDelayDemo.ino
Unescape View File

@ -0,0 +1,114 @@
//#include <MIDI.h>
#include "BAGuitar.h"
using namespace BAGuitar;
AudioInputI2S i2sIn;
AudioOutputI2S i2sOut;
BAAudioControlWM8731 codec;
#define USE_EXT
#ifdef USE_EXT
ExternalSramManager externalSram(1); // Manage both SRAMs
ExtMemSlot delaySlot; // For the external memory
AudioEffectAnalogDelay myDelay(&delaySlot);
#else
AudioEffectAnalogDelay myDelay(200.0f);
#endif
AudioMixer4 mixer; // Used to mix the original dry with the wet (effects) path.
AudioConnection patch0(i2sIn,0, myDelay,0);
AudioConnection mixerDry(i2sIn,0, mixer,0);
AudioConnection mixerWet(myDelay,0, mixer,1);
AudioConnection leftOut(mixer,0, i2sOut, 0);
AudioConnection rightOut(mixer,0, i2sOut, 1);
unsigned loopCount = 0;
void setup() {
delay(100);
Serial.begin(57600);
codec.disable();
delay(100);
AudioMemory(128);
delay(5);
// Setup MIDI
//usbMIDI.setHandleControlChange(OnControlChange);
Serial.println("Enabling codec...\n");
codec.enable();
delay(100);
#ifdef USE_EXT
Serial.println("Using EXTERNAL memory");
//externalSram.requestMemory(&delaySlot, 1400.0f);
//externalSram.requestMemory(&delaySlot, 1400.0f, MemSelect::MEM0, true);
externalSram.requestMemory(&delaySlot, 1400.0f, MemSelect::MEM1, true);
#else
Serial.println("Using INTERNAL memory");
#endif
myDelay.delay(200.0f);
//myDelay.delay( 128.0f/44100.0f*1000.0f);
//myDelay.delay(0, 0.0f);
//myDelay.delay((size_t)8192);
myDelay.mapMidiBypass(16);
myDelay.mapMidiDelay(20);
myDelay.mapMidiFeedback(21);
myDelay.mapMidiMix(22);
myDelay.enable();
myDelay.bypass(false);
myDelay.mix(1.0f);
myDelay.feedback(0.0f);
mixer.gain(0, 0.0f); // unity gain on the dry
mixer.gain(1, 1.0f); // unity gain on the wet
}
void OnControlChange(byte channel, byte control, byte value) {
myDelay.processMidi(channel, control, value);
Serial.print("Control Change, ch=");
Serial.print(channel, DEC);
Serial.print(", control=");
Serial.print(control, DEC);
Serial.print(", value=");
Serial.print(value, DEC);
Serial.println();
}
void loop() {
// usbMIDI.read() needs to be called rapidly from loop(). When
// each MIDI messages arrives, it return true. The message must
// be fully processed before usbMIDI.read() is called again.
//Serial.println(".");
if (loopCount % 262144 == 0) {
Serial.print("Processor Usage: "); Serial.print(AudioProcessorUsage());
Serial.print(" "); Serial.print(AudioProcessorUsageMax());
Serial.print(" Delay: "); Serial.print(myDelay.processorUsage());
Serial.print(" "); Serial.println(myDelay.processorUsageMax());
}
loopCount++;
if (usbMIDI.read()) {
byte type, channel, data1, data2, cable;
type = usbMIDI.getType(); // which MIDI message, 128-255
channel = usbMIDI.getChannel(); // which MIDI channel, 1-16
data1 = usbMIDI.getData1(); // first data byte of message, 0-127
data2 = usbMIDI.getData2(); // second data byte of message, 0-127
//cable = usbMIDI.getCable(); // which virtual cable with MIDIx8, 0-7
if (type == 3) {
OnControlChange(channel-1, data1, data2);
}
}
}

19
examples/Delay/AnalogDelayDemo/name.c
Unescape View File

@ -0,0 +1,19 @@
// To give your project a unique name, this code must be
// placed into a .c file (its own tab). It can not be in
// a .cpp file or your main sketch (the .ino file).
#include "usb_names.h"
// Edit these lines to create your own name. The length must
// match the number of characters in your custom name.
#define MIDI_NAME {'B','l','a','c','k','a','d','d','r',' ','A','u','d','i','o',' ','T','G','A',' ','P','r','o'}
#define MIDI_NAME_LEN 23
// Do not change this part. This exact format is required by USB.
struct usb_string_descriptor_struct usb_string_product_name = {
2 + MIDI_NAME_LEN * 2,
3,
MIDI_NAME
};

316
examples/Tests/DMA_MEM0_test/DMA_MEM0_test.ino
Unescape View File

@ -0,0 +1,316 @@
/*************************************************************************
* This demo uses the BAGuitar library to provide enhanced control of
* the TGA Pro board.
*
* The latest copy of the BA Guitar library can be obtained from
* https://github.com/Blackaddr/BAGuitar
*
* This demo will perform a DMA memory test on MEM0 attached
* to SPI.
*
* NOTE: SPI MEM0 can be used by a Teensy 3.2/3.5/3.6.
* pins.
*
*/
#include <Wire.h>
#include "BAGuitar.h"
using namespace BAGuitar;
//#define SANITY
#define DMA_SIZE 256
#define SPI_WRITE_CMD 0x2
#define SPI_READ_CMD 0x3
#define SPI_ADDR_2_MASK 0xFF0000
#define SPI_ADDR_2_SHIFT 16
#define SPI_ADDR_1_MASK 0x00FF00
#define SPI_ADDR_1_SHIFT 8
#define SPI_ADDR_0_MASK 0x0000FF
SPISettings memSettings(20000000, MSBFIRST, SPI_MODE0);
const int cs0pin = 15;
BAGpio gpio; // access to User LED
BASpiMemoryDMA spiMem0(SpiDeviceId::SPI_DEVICE0);
bool compareBuffers(uint8_t *a, uint8_t *b, size_t numBytes)
{
bool pass=true;
int errorCount = 0;
for (size_t i=0; i<numBytes; i++) {
if (a[i] != b[i]) {
if (errorCount < 10) {
Serial.print(i); Serial.print(":: a:"); Serial.print(a[i]); Serial.print(" does not match b:"); Serial.println(b[i]);
pass=false;
errorCount++;
} else { return false; }
}
}
return pass;
}
bool compareBuffers16(uint16_t *a, uint16_t *b, size_t numWords)
{
return compareBuffers(reinterpret_cast<uint8_t *>(a), reinterpret_cast<uint8_t*>(b), sizeof(uint16_t)*numWords);
}
constexpr size_t TEST_END = SPI_MAX_ADDR;
void setup() {
Serial.begin(57600);
while (!Serial) {}
delay(5);
Serial.println("Enabling SPI");
spiMem0.begin();
}
bool spi8BitTest(void) {
size_t spiAddress = 0;
int spiPhase = 0;
constexpr uint8_t MASK80 = 0xaa;
constexpr uint8_t MASK81 = 0x55;
uint8_t src8[DMA_SIZE];
uint8_t dest8[DMA_SIZE];
// Write to the memory using 8-bit transfers
Serial.println("\nStarting 8-bit test Write/Read");
while (spiPhase < 4) {
spiAddress = 0;
while (spiAddress < TEST_END) {
// fill the write data buffer
switch (spiPhase) {
case 0 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ( (spiAddress+i) & 0xff) ^ MASK80;
}
break;
case 1 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ MASK81;
}
break;
case 2 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ (!MASK80);
}
break;
case 3 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ (!MASK81);
}
break;
}
// Send the DMA transfer
spiMem0.write(spiAddress, src8, DMA_SIZE);
// wait until write is done
while (spiMem0.isWriteBusy()) {}
spiAddress += DMA_SIZE;
}
// Read back the data using 8-bit transfers
spiAddress = 0;
while (spiAddress < TEST_END) {
// generate the golden data
switch (spiPhase) {
case 0 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ( (spiAddress+i) & 0xff) ^ MASK80;
}
break;
case 1 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ MASK81;
}
break;
case 2 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ (!MASK80);
}
break;
case 3 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ (!MASK81);
}
break;
}
// Read back the DMA data
spiMem0.read(spiAddress, dest8, DMA_SIZE);
// wait until read is done
while (spiMem0.isReadBusy()) {}
if (!compareBuffers(src8, dest8, DMA_SIZE)) {
Serial.println(String("ERROR @") + spiAddress);
return false; } // stop the test
spiAddress += DMA_SIZE;
}
Serial.println(String("Phase ") + spiPhase + String(": 8-bit Write/Read test passed!"));
spiPhase++;
}
#ifdef SANITY
for (int i=0; i<DMA_SIZE; i++) {
Serial.print(src8[i], HEX); Serial.print("="); Serial.println(dest8[i],HEX);
}
#endif
Serial.println("\nStarting 8-bit test Zero/Read");
// Clear the memory
spiAddress = 0;
memset(src8, 0, DMA_SIZE);
while (spiAddress < SPI_MAX_ADDR) {
// Send the DMA transfer
spiMem0.zero(spiAddress, DMA_SIZE);
// wait until write is done
while (spiMem0.isWriteBusy()) {}
spiAddress += DMA_SIZE;
}
// Check the memory is clear
spiAddress = 0;
while (spiAddress < SPI_MAX_ADDR) {
// Read back the DMA data
spiMem0.read(spiAddress, dest8, DMA_SIZE);
// wait until read is done
while (spiMem0.isReadBusy()) {}
if (!compareBuffers(src8, dest8, DMA_SIZE)) { return false; } // stop the test
spiAddress += DMA_SIZE;
}
Serial.println(String(": 8-bit Zero/Read test passed!"));
return true;
}
bool spi16BitTest(void) {
size_t spiAddress = 0;
int spiPhase = 0;
constexpr uint16_t MASK160 = 0xaaaa;
constexpr uint16_t MASK161 = 0x5555;
constexpr int NUM_DATA = DMA_SIZE / sizeof(uint16_t);
uint16_t src16[NUM_DATA];
uint16_t dest16[NUM_DATA];
// Write to the memory using 16-bit transfers
Serial.println("\nStarting 16-bit test");
while (spiPhase < 4) {
spiAddress = 0;
while (spiAddress < SPI_MAX_ADDR) {
// fill the write data buffer
switch (spiPhase) {
case 0 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ( (spiAddress+i) & 0xffff) ^ MASK160;
}
break;
case 1 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ MASK161;
}
break;
case 2 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ (!MASK160);
}
break;
case 3 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ (!MASK161);
}
break;
}
// Send the DMA transfer
spiMem0.write16(spiAddress, src16, NUM_DATA);
// wait until write is done
while (spiMem0.isWriteBusy()) {}
spiAddress += DMA_SIZE;
}
// Read back the data using 8-bit transfers
spiAddress = 0;
while (spiAddress < SPI_MAX_ADDR) {
// generate the golden data
switch (spiPhase) {
case 0 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ( (spiAddress+i) & 0xffff) ^ MASK160;
}
break;
case 1 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ MASK161;
}
break;
case 2 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ (!MASK160);
}
break;
case 3 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ (!MASK161);
}
break;
}
// Read back the DMA data
spiMem0.read16(spiAddress, dest16, NUM_DATA);
// wait until read is done
while (spiMem0.isReadBusy()) {}
if (!compareBuffers16(src16, dest16, NUM_DATA)) {
Serial.print("ERROR @"); Serial.println(spiAddress, HEX);
return false; } // stop the test
spiAddress += DMA_SIZE;
}
Serial.println(String("Phase ") + spiPhase + String(": 16-bit test passed!"));
spiPhase++;
}
#ifdef SANITY
for (int i=0; i<NUM_DATA; i++) {
Serial.print(src16[i], HEX); Serial.print("="); Serial.println(dest16[i],HEX);
}
#endif
Serial.println("\nStarting 16-bit test Zero/Read");
// Clear the memory
spiAddress = 0;
memset(src16, 0, DMA_SIZE);
while (spiAddress < SPI_MAX_ADDR) {
// Send the DMA transfer
spiMem0.zero16(spiAddress, NUM_DATA);
// wait until write is done
while (spiMem0.isWriteBusy()) {}
spiAddress += DMA_SIZE;
}
// Check the memory is clear
spiAddress = 0;
while (spiAddress < SPI_MAX_ADDR) {
// Read back the DMA data
spiMem0.read16(spiAddress, dest16, NUM_DATA);
// wait until read is done
while (spiMem0.isReadBusy()) {}
if (!compareBuffers16(src16, dest16, NUM_DATA)) { return false; } // stop the test
spiAddress += DMA_SIZE;
}
Serial.println(String(": 16-bit Zero/Read test passed!"));
return true;
}
void loop() {
spi8BitTest();
spi16BitTest();
while(true) {}
}

316
examples/Tests/DMA_MEM1_test/DMA_MEM1_test.ino
Unescape View File

@ -0,0 +1,316 @@
/*************************************************************************
* This demo uses the BAGuitar library to provide enhanced control of
* the TGA Pro board.
*
* The latest copy of the BA Guitar library can be obtained from
* https://github.com/Blackaddr/BAGuitar
*
* This demo will perform a DMA memory test on MEM1 attached
* to SPI1.
*
* NOTE: SPI MEM1 can be used by a Teensy 3.5/3.6.
* pins.
*
*/
#include <Wire.h>
#include "BAGuitar.h"
using namespace BAGuitar;
//#define SANITY
#define DMA_SIZE 256
#define SPI_WRITE_CMD 0x2
#define SPI_READ_CMD 0x3
#define SPI_ADDR_2_MASK 0xFF0000
#define SPI_ADDR_2_SHIFT 16
#define SPI_ADDR_1_MASK 0x00FF00
#define SPI_ADDR_1_SHIFT 8
#define SPI_ADDR_0_MASK 0x0000FF
SPISettings memSettings(20000000, MSBFIRST, SPI_MODE0);
const int cs0pin = 15;
BAGpio gpio; // access to User LED
BASpiMemoryDMA spiMem1(SpiDeviceId::SPI_DEVICE1);
bool compareBuffers(uint8_t *a, uint8_t *b, size_t numBytes)
{
bool pass=true;
int errorCount = 0;
for (size_t i=0; i<numBytes; i++) {
if (a[i] != b[i]) {
if (errorCount < 10) {
Serial.print(i); Serial.print(":: a:"); Serial.print(a[i]); Serial.print(" does not match b:"); Serial.println(b[i]);
pass=false;
errorCount++;
} else { return false; }
}
}
return pass;
}
bool compareBuffers16(uint16_t *a, uint16_t *b, size_t numWords)
{
return compareBuffers(reinterpret_cast<uint8_t *>(a), reinterpret_cast<uint8_t*>(b), sizeof(uint16_t)*numWords);
}
constexpr size_t TEST_END = SPI_MAX_ADDR;
void setup() {
Serial.begin(57600);
while (!Serial) {}
delay(5);
Serial.println("Enabling SPI");
spiMem1.begin();
}
bool spi8BitTest(void) {
size_t spiAddress = 0;
int spiPhase = 0;
constexpr uint8_t MASK80 = 0xaa;
constexpr uint8_t MASK81 = 0x55;
uint8_t src8[DMA_SIZE];
uint8_t dest8[DMA_SIZE];
// Write to the memory using 8-bit transfers
Serial.println("\nStarting 8-bit test Write/Read");
while (spiPhase < 4) {
spiAddress = 0;
while (spiAddress < TEST_END) {
// fill the write data buffer
switch (spiPhase) {
case 0 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ( (spiAddress+i) & 0xff) ^ MASK80;
}
break;
case 1 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ MASK81;
}
break;
case 2 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ (!MASK80);
}
break;
case 3 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ (!MASK81);
}
break;
}
// Send the DMA transfer
spiMem1.write(spiAddress, src8, DMA_SIZE);
// wait until write is done
while (spiMem1.isWriteBusy()) {}
spiAddress += DMA_SIZE;
}
// Read back the data using 8-bit transfers
spiAddress = 0;
while (spiAddress < TEST_END) {
// generate the golden data
switch (spiPhase) {
case 0 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ( (spiAddress+i) & 0xff) ^ MASK80;
}
break;
case 1 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ MASK81;
}
break;
case 2 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ (!MASK80);
}
break;
case 3 :
for (int i=0; i<DMA_SIZE; i++) {
src8[i] = ((spiAddress+i) & 0xff) ^ (!MASK81);
}
break;
}
// Read back the DMA data
spiMem1.read(spiAddress, dest8, DMA_SIZE);
// wait until read is done
while (spiMem1.isReadBusy()) {}
if (!compareBuffers(src8, dest8, DMA_SIZE)) {
Serial.println(String("ERROR @") + spiAddress);
return false; } // stop the test
spiAddress += DMA_SIZE;
}
Serial.println(String("Phase ") + spiPhase + String(": 8-bit Write/Read test passed!"));
spiPhase++;
}
#ifdef SANITY
for (int i=0; i<DMA_SIZE; i++) {
Serial.print(src8[i], HEX); Serial.print("="); Serial.println(dest8[i],HEX);
}
#endif
Serial.println("\nStarting 8-bit test Zero/Read");
// Clear the memory
spiAddress = 0;
memset(src8, 0, DMA_SIZE);
while (spiAddress < SPI_MAX_ADDR) {
// Send the DMA transfer
spiMem1.zero(spiAddress, DMA_SIZE);
// wait until write is done
while (spiMem1.isWriteBusy()) {}
spiAddress += DMA_SIZE;
}
// Check the memory is clear
spiAddress = 0;
while (spiAddress < SPI_MAX_ADDR) {
// Read back the DMA data
spiMem1.read(spiAddress, dest8, DMA_SIZE);
// wait until read is done
while (spiMem1.isReadBusy()) {}
if (!compareBuffers(src8, dest8, DMA_SIZE)) { return false; } // stop the test
spiAddress += DMA_SIZE;
}
Serial.println(String(": 8-bit Zero/Read test passed!"));
return true;
}
bool spi16BitTest(void) {
size_t spiAddress = 0;
int spiPhase = 0;
constexpr uint16_t MASK160 = 0xaaaa;
constexpr uint16_t MASK161 = 0x5555;
constexpr int NUM_DATA = DMA_SIZE / sizeof(uint16_t);
uint16_t src16[NUM_DATA];
uint16_t dest16[NUM_DATA];
// Write to the memory using 16-bit transfers
Serial.println("\nStarting 16-bit test");
while (spiPhase < 4) {
spiAddress = 0;
while (spiAddress < SPI_MAX_ADDR) {
// fill the write data buffer
switch (spiPhase) {
case 0 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ( (spiAddress+i) & 0xffff) ^ MASK160;
}
break;
case 1 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ MASK161;
}
break;
case 2 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ (!MASK160);
}
break;
case 3 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ (!MASK161);
}
break;
}
// Send the DMA transfer
spiMem1.write16(spiAddress, src16, NUM_DATA);
// wait until write is done
while (spiMem1.isWriteBusy()) {}
spiAddress += DMA_SIZE;
}
// Read back the data using 8-bit transfers
spiAddress = 0;
while (spiAddress < SPI_MAX_ADDR) {
// generate the golden data
switch (spiPhase) {
case 0 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ( (spiAddress+i) & 0xffff) ^ MASK160;
}
break;
case 1 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ MASK161;
}
break;
case 2 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ (!MASK160);
}
break;
case 3 :
for (int i=0; i<NUM_DATA; i++) {
src16[i] = ((spiAddress+i) & 0xffff) ^ (!MASK161);
}
break;
}
// Read back the DMA data
spiMem1.read16(spiAddress, dest16, NUM_DATA);
// wait until read is done
while (spiMem1.isReadBusy()) {}
if (!compareBuffers16(src16, dest16, NUM_DATA)) {
Serial.print("ERROR @"); Serial.println(spiAddress, HEX);
return false; } // stop the test
spiAddress += DMA_SIZE;
}
Serial.println(String("Phase ") + spiPhase + String(": 16-bit test passed!"));
spiPhase++;
}
#ifdef SANITY
for (int i=0; i<NUM_DATA; i++) {
Serial.print(src16[i], HEX); Serial.print("="); Serial.println(dest16[i],HEX);
}
#endif
Serial.println("\nStarting 16-bit test Zero/Read");
// Clear the memory
spiAddress = 0;
memset(src16, 0, DMA_SIZE);
while (spiAddress < SPI_MAX_ADDR) {
// Send the DMA transfer
spiMem1.zero16(spiAddress, NUM_DATA);
// wait until write is done
while (spiMem1.isWriteBusy()) {}
spiAddress += DMA_SIZE;
}
// Check the memory is clear
spiAddress = 0;
while (spiAddress < SPI_MAX_ADDR) {
// Read back the DMA data
spiMem1.read16(spiAddress, dest16, NUM_DATA);
// wait until read is done
while (spiMem1.isReadBusy()) {}
if (!compareBuffers16(src16, dest16, NUM_DATA)) { return false; } // stop the test
spiAddress += DMA_SIZE;
}
Serial.println(String(": 16-bit Zero/Read test passed!"));
return true;
}
void loop() {
spi8BitTest();
spi16BitTest();
while(true) {}
}

78
src/AudioEffectAnalogDelay.h
Unescape View File

@ -1,34 +1,88 @@
/*
* AudioEffectAnalogDelay.h
/**************************************************************************//**
* @file
* @author Steve Lascos
* @company Blackaddr Audio
*
* Created on: Jan 7, 2018
* Author: slascos
*/
* AudioEffectAnalogDelay is a class for simulating a classic BBD based delay
* like the Boss DM-2. This class works with either internal RAM, or external
* SPI RAM for longer delays. The exteranl ram uses DMA to minimize load on the
* CPU.
*
* @copyright This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#ifndef SRC_AUDIOEFFECTANALOGDELAY_H_
#define SRC_AUDIOEFFECTANALOGDELAY_H_
#ifndef __BAGUITAR_BAAUDIOEFFECTANALOGDELAY_H
#define __BAGUITAR_BAAUDIOEFFECTANALOGDELAY_H
#include <Audio.h>
#include "LibBasicFunctions.h"
namespace BAGuitar {
/**************************************************************************//**
* AudioEffectAnalogDelay models BBD based analog delays. It provides controls
* for delay, feedback (or regen), mix and output level. All parameters can be
* controlled by MIDI. The class supports internal memory, or external SPI
* memory by providing an ExtMemSlot. External memory access uses DMA to reduce
* process load.
*****************************************************************************/
class AudioEffectAnalogDelay : public AudioStream {
public:
AudioEffectAnalogDelay() = delete;
AudioEffectAnalogDelay(float maxDelay);
/// Construct an analog delay using internal memory by specifying the maximum
/// delay in milliseconds.
/// @param maxDelayMs maximum delay in milliseconds. Larger delays use more memory.
AudioEffectAnalogDelay(float maxDelayMs);
/// Construct an analog delay using internal memory by specifying the maximum
/// delay in audio samples.
/// @param numSamples maximum delay in audio samples. Larger delays use more memory.
AudioEffectAnalogDelay(size_t numSamples);
/// Construct an analog delay using external SPI via an ExtMemSlot. The amount of
/// delay will be determined by the amount of memory in the slot.
/// @param slot A pointer to the ExtMemSlot to use for the delay.
AudioEffectAnalogDelay(ExtMemSlot *slot); // requires sufficiently sized pre-allocated memory
virtual ~AudioEffectAnalogDelay();
virtual void update(void);
virtual ~AudioEffectAnalogDelay(); ///< Destructor
/// Set the delay in milliseconds.
/// @param milliseconds the request delay in milliseconds. Must be less than max delay.
void delay(float milliseconds);
/// Set the delay in number of audio samples.
/// @param delaySamples the request delay in audio samples. Must be less than max delay.
void delay(size_t delaySamples);
/// Bypass the effect.
/// @param byp when true, bypass wil disable the effect, when false, effect is enabled.
/// Note that audio still passes through when bypass is enabled.
void bypass(bool byp) { m_bypass = byp; }
/// Set the amount of echo feedback (a.k.a regeneration).
/// @param feedback a floating point number between 0.0 and 1.0.
void feedback(float feedback) { m_feedback = feedback; }
/// Set the amount of blending between dry and wet (echo) at the output.
/// @param mix When 0.0, output is 100% dry, when 1.0, output is 100% wet. When
/// 0.5, output is 50% Dry, 50% Wet.
void mix(float mix) { m_mix = mix; }
/// Enables audio processing. Note: when not enabled, CPU load is nearly zero.
void enable() { m_enable = true; }
/// Disables audio process. When disabled, CPU load is nearly zero.
void disable() { m_enable = false; }
void processMidi(int channel, int control, int value);
@ -37,6 +91,8 @@ public:
void mapMidiFeedback(int control, int channel = 0);
void mapMidiMix(int control, int channel = 0);
virtual void update(void); ///< update automatically called by the Teesny Audio Library
private:
audio_block_t *m_inputQueueArray[1];
bool m_bypass = true;
@ -62,4 +118,4 @@ private:
}
#endif /* SRC_AUDIOEFFECTANALOGDELAY_H_ */
#endif /* __BAGUITAR_BAAUDIOEFFECTANALOGDELAY_H */

6
src/BAAudioControlWM8731.h
Unescape View File

@ -22,8 +22,8 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#ifndef __BAAUDIOCONTROLWM8731_H
#define __BAAUDIOCONTROLWM8731_H
#ifndef __BAGUITAR__BAAUDIOCONTROLWM8731_H
#define __BAGUITAR__BAAUDIOCONTROLWM8731_H
namespace BAGuitar {
@ -128,4 +128,4 @@ private:
} /* namespace BAGuitar */
#endif /* __BAAUDIOCONTROLWM8731_H */
#endif /* __BAGUITAR__BAAUDIOCONTROLWM8731_H */

7
src/BAGpio.h
Unescape View File

@ -20,8 +20,8 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#ifndef __SRC_BAGPIO_H
#define __SRC_BAGPIO_H
#ifndef __BAGUITAR_BAGPIO_H
#define __BAGUITAR_BAGPIO_H
#include "BAHardware.h"
@ -35,6 +35,7 @@ namespace BAGuitar {
*****************************************************************************/
class BAGpio {
public:
/// Construct a GPIO object for controlling the various GPIO and user pins
BAGpio();
virtual ~BAGpio();
@ -72,4 +73,4 @@ private:
} /* namespace BAGuitar */
#endif /* __SRC_BAGPIO_H */
#endif /* __BAGUITAR_BAGPIO_H */

10
src/BAGuitar.h
Unescape View File

@ -18,16 +18,18 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __SRC_BATGUITAR_H
#define __SRC_BATGUITAR_H
#ifndef __BATGUITAR_H
#define __BATGUITAR_H
#include "BAHardware.h" // contains the Blackaddr hardware board definitions
#include "BATypes.h"
#include "BAAudioControlWM8731.h" // Codec Control
#include "BASpiMemory.h"
#include "BAGpio.h"
#include "BAAudioEffectDelayExternal.h"
#include "AudioEffectAnalogDelay.h"
#include "LibBasicFunctions.h"
#include "LibMemoryManagement.h"
#endif /* __SRC_BATGUITAR_H */
#endif /* __BATGUITAR_H */

13
src/BAHardware.h
Unescape View File

@ -20,8 +20,8 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#ifndef SRC_BAHARDWARE_H_
#define SRC_BAHARDWARE_H_
#ifndef __BAGUTIAR_BAHARDWARE_H
#define __BAGUTIAR_BAHARDWARE_H
#include <cstdint>
@ -64,9 +64,12 @@ enum MemSelect : unsigned {
MEM0 = 0, ///< SPI RAM MEM0
MEM1 = 1 ///< SPI RAM MEM1
};
/**************************************************************************//**
* Set the maximum address (byte-based) in the external SPI memories
*****************************************************************************/
constexpr size_t MEM_MAX_ADDR[NUM_MEM_SLOTS] = { 131071, 131071 };
//constexpr int MEM0_MAX_ADDR = 131071; ///< Max address size per chip
//constexpr int MEM1_MAX_ADDR = 131071; ///< Max address size per chip
/**************************************************************************//**
* General Purpose SPI Interfaces
@ -87,4 +90,4 @@ constexpr int SPI_MAX_ADDR = 131071; ///< Max address size per chip
} // namespace BAGuitar
#endif /* SRC_BAHARDWARE_H_ */
#endif /* __BAGUTIAR_BAHARDWARE_H */

17
src/BASpiMemory.h
Unescape View File

@ -4,7 +4,8 @@
* @company Blackaddr Audio
*
* BASpiMemory is convenience class for accessing the optional SPI RAMs on
* the GTA Series boards.
* the GTA Series boards. BASpiMemoryDma works the same but uses DMA to reduce
* load on the processor.
*
* @copyright This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -19,8 +20,8 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#ifndef __SRC_BASPIMEMORY_H
#define __SRC_BASPIMEMORY_H
#ifndef __BAGUITAR_BASPIMEMORY_H
#define __BAGUITAR_BASPIMEMORY_H
#include <SPI.h>
#include <DmaSpi.h>
@ -119,7 +120,6 @@ protected:
};
//constexpr int MAX_DMA_XFERS = 4;
class BASpiMemoryDMA : public BASpiMemory {
public:
@ -194,17 +194,12 @@ public:
void readBufferContents(uint16_t *dest, size_t numWords, size_t wordOffset = 0);
private:
//AbstractDmaSpi<DmaSpi0, SPIClass, SPI> *m_spiDma = nullptr;
//AbstractDmaSpi<DmaSpi0, SPIClass, SPI1> *m_spiDma = nullptr;
DmaSpiGeneric *m_spiDma = nullptr;
DmaSpiGeneric *m_spiDma = nullptr;
AbstractChipSelect *m_cs = nullptr;
//size_t m_bufferSize;
//uint8_t *m_txBuffer = nullptr;
uint8_t *m_txCommandBuffer = nullptr;
DmaSpi::Transfer *m_txTransfer;
//uint8_t *m_rxBuffer = nullptr;
uint8_t *m_rxCommandBuffer = nullptr;
DmaSpi::Transfer *m_rxTransfer;
@ -217,4 +212,4 @@ private:
} /* namespace BAGuitar */
#endif /* __SRC_BASPIMEMORY_H */
#endif /* __BAGUITAR_BASPIMEMORY_H */

30
src/BATypes.h
Unescape View File

@ -1,12 +1,26 @@
/*
* BATypes.h
/**************************************************************************//**
* @file
* @author Steve Lascos
* @company Blackaddr Audio
*
* This file contains some custom types used by the rest of the BAGuitar library.
*
* @copyright This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.*
*
* Created on: Feb 7, 2018
* Author: slascos
*/
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#ifndef SRC_BATYPES_H_
#define SRC_BATYPES_H_
#ifndef __BAGUITAR_BATYPES_H
#define __BAGUITAR_BATYPES_H
namespace BAGuitar {
@ -141,4 +155,4 @@ private:
} // BAGuitar
#endif /* SRC_BATYPES_H_ */
#endif /* __BAGUITAR_BATYPES_H */

356
src/LibBasicFunctions.cpp
Unescape View File

@ -1,356 +0,0 @@
/*
* LibBasicFunctions.cpp
*
* Created on: Dec 23, 2017
* Author: slascos
*/
#include "Audio.h"
#include "LibBasicFunctions.h"
namespace BAGuitar {
size_t calcAudioSamples(float milliseconds)
{
return (size_t)((milliseconds*(AUDIO_SAMPLE_RATE_EXACT/1000.0f))+0.5f);
}
QueuePosition calcQueuePosition(size_t numSamples)
{
QueuePosition queuePosition;
queuePosition.index = (int)(numSamples / AUDIO_BLOCK_SAMPLES);
queuePosition.offset = numSamples % AUDIO_BLOCK_SAMPLES;
return queuePosition;
}
QueuePosition calcQueuePosition(float milliseconds) {
size_t numSamples = (int)((milliseconds*(AUDIO_SAMPLE_RATE_EXACT/1000.0f))+0.5f);
return calcQueuePosition(numSamples);
}
size_t calcOffset(QueuePosition position)
{
return (position.index*AUDIO_BLOCK_SAMPLES) + position.offset;
}
void alphaBlend(audio_block_t *out, audio_block_t *dry, audio_block_t* wet, float mix)
{
//Non-optimized version for illustrative purposes
// for (int i=0; i< AUDIO_BLOCK_SAMPLES; i++) {
// out->data[i] = (dry->data[i] * (1 - mix)) + (wet->data[i] * mix);
// }
// return;
// ARM DSP optimized
int16_t wetBuffer[AUDIO_BLOCK_SAMPLES];
int16_t dryBuffer[AUDIO_BLOCK_SAMPLES];
int16_t scaleFractWet = (int16_t)(mix * 32767.0f);
int16_t scaleFractDry = 32767-scaleFractWet;
arm_scale_q15(dry->data, scaleFractDry, 0, dryBuffer, AUDIO_BLOCK_SAMPLES);
arm_scale_q15(wet->data, scaleFractWet, 0, wetBuffer, AUDIO_BLOCK_SAMPLES);
arm_add_q15(wetBuffer, dryBuffer, out->data, AUDIO_BLOCK_SAMPLES);
}
void clearAudioBlock(audio_block_t *block)
{
memset(block->data, 0, sizeof(int16_t)*AUDIO_BLOCK_SAMPLES);
}
////////////////////////////////////////////////////
// AudioDelay
////////////////////////////////////////////////////
AudioDelay::AudioDelay(size_t maxSamples)
: m_slot(nullptr)
{
m_type = (MemType::MEM_INTERNAL);
// INTERNAL memory consisting of audio_block_t data structures.
QueuePosition pos = calcQueuePosition(maxSamples);
m_ringBuffer = new RingBuffer<audio_block_t *>(pos.index+2); // If the delay is in queue x, we need to overflow into x+1, thus x+2 total buffers.
}
AudioDelay::AudioDelay(float maxDelayTimeMs)
: AudioDelay(calcAudioSamples(maxDelayTimeMs))
{
}
AudioDelay::AudioDelay(ExtMemSlot *slot)
{
m_type = (MemType::MEM_EXTERNAL);
m_slot = slot;
}
AudioDelay::~AudioDelay()
{
if (m_ringBuffer) delete m_ringBuffer;
}
audio_block_t* AudioDelay::addBlock(audio_block_t *block)
{
audio_block_t *blockToRelease = nullptr;
if (m_type == (MemType::MEM_INTERNAL)) {
// INTERNAL memory
// purposefully don't check if block is valid, the ringBuffer can support nullptrs
if ( m_ringBuffer->size() >= m_ringBuffer->max_size() ) {
// pop before adding
blockToRelease = m_ringBuffer->front();
m_ringBuffer->pop_front();
}
// add the new buffer
m_ringBuffer->push_back(block);
return blockToRelease;
} else {
// EXTERNAL memory
if (!m_slot) { Serial.println("addBlock(): m_slot is not valid"); }
if (block) {
// Audio is stored in reverse in block so we need to write it backwards to external memory
// to maintain temporal coherency.
// int16_t *srcPtr = block->data + AUDIO_BLOCK_SAMPLES - 1;
// for (int i=0; i<AUDIO_BLOCK_SAMPLES; i++) {
// m_slot->writeAdvance16(*srcPtr);
// srcPtr--;
// }
// this causes pops
m_slot->writeAdvance16(block->data, AUDIO_BLOCK_SAMPLES);
// Code below worked
// int16_t *srcPtr = block->data;
// for (int i=0; i<AUDIO_BLOCK_SAMPLES; i++) {
// m_slot->writeAdvance16(*srcPtr);
// srcPtr++;
// }
}
blockToRelease = block;
}
return blockToRelease;
}
audio_block_t* AudioDelay::getBlock(size_t index)
{
audio_block_t *ret = nullptr;
if (m_type == (MemType::MEM_INTERNAL)) {
ret = m_ringBuffer->at(m_ringBuffer->get_index_from_back(index));
}
return ret;
}
bool AudioDelay::getSamples(audio_block_t *dest, size_t offsetSamples, size_t numSamples)
{
if (!dest) {
Serial.println("getSamples(): dest is invalid");
return false;
}
if (m_type == (MemType::MEM_INTERNAL)) {
QueuePosition position = calcQueuePosition(offsetSamples);
size_t index = position.index;
audio_block_t *currentQueue0 = m_ringBuffer->at(m_ringBuffer->get_index_from_back(index));
// The latest buffer is at the back. We need index+1 counting from the back.
audio_block_t *currentQueue1 = m_ringBuffer->at(m_ringBuffer->get_index_from_back(index+1));
// check if either queue is invalid, if so just zero the destination buffer
if ( (!currentQueue0) || (!currentQueue0) ) {
// a valid entry is not in all queue positions while it is filling, use zeros
memset(static_cast<void*>(dest->data), 0, numSamples * sizeof(int16_t));
return true;
}
if (position.offset == 0) {
// single transfer
memcpy(static_cast<void*>(dest->data), static_cast<void*>(currentQueue0->data), numSamples * sizeof(int16_t));
return true;
}
// Otherwise we need to break the transfer into two memcpy because it will go across two source queues.
// Audio is stored in reverse order. That means the first sample (in time) goes in the last location in the audio block.
int16_t *destStart = dest->data;
int16_t *srcStart;
// Break the transfer into two. Copy the 'older' data first then the 'newer' data with respect to current time.
//currentQueue = m_ringBuffer->at(m_ringBuffer->get_index_from_back(index+1)); // The latest buffer is at the back. We need index+1 counting from the back.
srcStart = (currentQueue1->data + AUDIO_BLOCK_SAMPLES - position.offset);
size_t numData = position.offset;
memcpy(static_cast<void*>(destStart), static_cast<void*>(srcStart), numData * sizeof(int16_t));
//currentQueue = m_ringBuffer->at(m_ringBuffer->get_index_from_back(index)); // now grab the queue where the 'first' data sample was
destStart += numData; // we already wrote numData so advance by this much.
srcStart = (currentQueue0->data);
numData = AUDIO_BLOCK_SAMPLES - numData;
memcpy(static_cast<void*>(destStart), static_cast<void*>(srcStart), numData * sizeof(int16_t));
return true;
} else {
// EXTERNAL Memory
if (numSamples*sizeof(int16_t) <= m_slot->size() ) {
int currentPositionBytes = (int)m_slot->getWritePosition() - (int)(AUDIO_BLOCK_SAMPLES*sizeof(int16_t));
size_t offsetBytes = offsetSamples * sizeof(int16_t);
if ((int)offsetBytes <= currentPositionBytes) {
m_slot->setReadPosition(currentPositionBytes - offsetBytes);
} else {
// It's going to wrap around to the end of the slot
int readPosition = (int)m_slot->size() + currentPositionBytes - offsetBytes;
m_slot->setReadPosition((size_t)readPosition);
}
//m_slot->printStatus();
// write the data to the destination block in reverse
// int16_t *destPtr = dest->data + AUDIO_BLOCK_SAMPLES-1;
// for (int i=0; i<AUDIO_BLOCK_SAMPLES; i++) {
// *destPtr = m_slot->readAdvance16();
// destPtr--;
// }
// This causes pops
m_slot->readAdvance16(dest->data, AUDIO_BLOCK_SAMPLES);
// Code below worked
// int16_t *destPtr = dest->data;
// for (int i=0; i<AUDIO_BLOCK_SAMPLES; i++) {
// *destPtr = m_slot->readAdvance16();
// destPtr++;
// }
return true;
} else {
// numSampmles is > than total slot size
Serial.println("getSamples(): ERROR numSamples > total slot size");
return false;
}
}
}
////////////////////////////////////////////////////
// IirBiQuadFilter
////////////////////////////////////////////////////
IirBiQuadFilter::IirBiQuadFilter(unsigned numStages, const int32_t *coeffs, int coeffShift)
: NUM_STAGES(numStages)
{
m_coeffs = new int32_t[5*numStages];
memcpy(m_coeffs, coeffs, 5*numStages * sizeof(int32_t));
m_state = new int32_t[4*numStages];
arm_biquad_cascade_df1_init_q31(&m_iirCfg, numStages, m_coeffs, m_state, coeffShift);
}
IirBiQuadFilter::~IirBiQuadFilter()
{
if (m_coeffs) delete [] m_coeffs;
if (m_state) delete [] m_state;
}
bool IirBiQuadFilter::process(int16_t *output, int16_t *input, size_t numSamples)
{
if (!output) return false;
if (!input) {
// send zeros
memset(output, 0, numSamples * sizeof(int16_t));
} else {
// create convertion buffers on teh stack
int32_t input32[numSamples];
int32_t output32[numSamples];
for (size_t i=0; i<numSamples; i++) {
input32[i] = (int32_t)(input[i]);
}
arm_biquad_cascade_df1_fast_q31(&m_iirCfg, input32, output32, numSamples);
for (size_t i=0; i<numSamples; i++) {
output[i] = (int16_t)(output32[i] & 0xffff);
}
}
return true;
}
// HIGH QUALITY
IirBiQuadFilterHQ::IirBiQuadFilterHQ(unsigned numStages, const int32_t *coeffs, int coeffShift)
: NUM_STAGES(numStages)
{
m_coeffs = new int32_t[5*numStages];
memcpy(m_coeffs, coeffs, 5*numStages * sizeof(int32_t));
m_state = new int64_t[4*numStages];;
arm_biquad_cas_df1_32x64_init_q31(&m_iirCfg, numStages, m_coeffs, m_state, coeffShift);
}
IirBiQuadFilterHQ::~IirBiQuadFilterHQ()
{
if (m_coeffs) delete [] m_coeffs;
if (m_state) delete [] m_state;
}
bool IirBiQuadFilterHQ::process(int16_t *output, int16_t *input, size_t numSamples)
{
if (!output) return false;
if (!input) {
// send zeros
memset(output, 0, numSamples * sizeof(int16_t));
} else {
// create convertion buffers on teh stack
int32_t input32[numSamples];
int32_t output32[numSamples];
for (size_t i=0; i<numSamples; i++) {
input32[i] = (int32_t)(input[i]);
}
arm_biquad_cas_df1_32x64_q31(&m_iirCfg, input32, output32, numSamples);
for (size_t i=0; i<numSamples; i++) {
output[i] = (int16_t)(output32[i] & 0xffff);
}
}
return true;
}
// FLOAT
IirBiQuadFilterFloat::IirBiQuadFilterFloat(unsigned numStages, const float *coeffs)
: NUM_STAGES(numStages)
{
m_coeffs = new float[5*numStages];
memcpy(m_coeffs, coeffs, 5*numStages * sizeof(float));
m_state = new float[4*numStages];;
arm_biquad_cascade_df2T_init_f32(&m_iirCfg, numStages, m_coeffs, m_state);
}
IirBiQuadFilterFloat::~IirBiQuadFilterFloat()
{
if (m_coeffs) delete [] m_coeffs;
if (m_state) delete [] m_state;
}
bool IirBiQuadFilterFloat::process(float *output, float *input, size_t numSamples)
{
if (!output) return false;
if (!input) {
// send zeros
memset(output, 0, numSamples * sizeof(float));
} else {
arm_biquad_cascade_df2T_f32(&m_iirCfg, input, output, numSamples);
}
return true;
}
}

6
src/LibBasicFunctions.h
Unescape View File

@ -30,8 +30,8 @@
#include "BATypes.h"
#include "LibMemoryManagement.h"
#ifndef __LIBBASICFUNCTIONS_H
#define __LIBBASICFUNCTIONS_H
#ifndef __BAGUITAR_LIBBASICFUNCTIONS_H
#define __BAGUITAR_LIBBASICFUNCTIONS_H
namespace BAGuitar {
@ -260,4 +260,4 @@ private:
}
#endif /* __LIBBASICFUNCTIONS_H */
#endif /* __BAGUITAR_LIBBASICFUNCTIONS_H */

4
src/LibMemoryManagement.h
Unescape View File

@ -26,8 +26,8 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#ifndef __LIBMEMORYMANAGEMENT_H
#define __LIBMEMORYMANAGEMENT_H
#ifndef __BAGUITAR_LIBMEMORYMANAGEMENT_H
#define __BAGUITAR_LIBMEMORYMANAGEMENT_H
#include <cstddef>

171
src/common/AudioDelay.cpp
Unescape View File

@ -0,0 +1,171 @@
/*
* AudioDelay.cpp
*
* Created on: January 1, 2018
* Author: slascos
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Audio.h"
#include "LibBasicFunctions.h"
namespace BAGuitar {
////////////////////////////////////////////////////
// AudioDelay
////////////////////////////////////////////////////
AudioDelay::AudioDelay(size_t maxSamples)
: m_slot(nullptr)
{
m_type = (MemType::MEM_INTERNAL);
// INTERNAL memory consisting of audio_block_t data structures.
QueuePosition pos = calcQueuePosition(maxSamples);
m_ringBuffer = new RingBuffer<audio_block_t *>(pos.index+2); // If the delay is in queue x, we need to overflow into x+1, thus x+2 total buffers.
}
AudioDelay::AudioDelay(float maxDelayTimeMs)
: AudioDelay(calcAudioSamples(maxDelayTimeMs))
{
}
AudioDelay::AudioDelay(ExtMemSlot *slot)
{
m_type = (MemType::MEM_EXTERNAL);
m_slot = slot;
}
AudioDelay::~AudioDelay()
{
if (m_ringBuffer) delete m_ringBuffer;
}
audio_block_t* AudioDelay::addBlock(audio_block_t *block)
{
audio_block_t *blockToRelease = nullptr;
if (m_type == (MemType::MEM_INTERNAL)) {
// INTERNAL memory
// purposefully don't check if block is valid, the ringBuffer can support nullptrs
if ( m_ringBuffer->size() >= m_ringBuffer->max_size() ) {
// pop before adding
blockToRelease = m_ringBuffer->front();
m_ringBuffer->pop_front();
}
// add the new buffer
m_ringBuffer->push_back(block);
return blockToRelease;
} else {
// EXTERNAL memory
if (!m_slot) { Serial.println("addBlock(): m_slot is not valid"); }
if (block) {
// this causes pops
m_slot->writeAdvance16(block->data, AUDIO_BLOCK_SAMPLES);
}
blockToRelease = block;
}
return blockToRelease;
}
audio_block_t* AudioDelay::getBlock(size_t index)
{
audio_block_t *ret = nullptr;
if (m_type == (MemType::MEM_INTERNAL)) {
ret = m_ringBuffer->at(m_ringBuffer->get_index_from_back(index));
}
return ret;
}
bool AudioDelay::getSamples(audio_block_t *dest, size_t offsetSamples, size_t numSamples)
{
if (!dest) {
Serial.println("getSamples(): dest is invalid");
return false;
}
if (m_type == (MemType::MEM_INTERNAL)) {
QueuePosition position = calcQueuePosition(offsetSamples);
size_t index = position.index;
audio_block_t *currentQueue0 = m_ringBuffer->at(m_ringBuffer->get_index_from_back(index));
// The latest buffer is at the back. We need index+1 counting from the back.
audio_block_t *currentQueue1 = m_ringBuffer->at(m_ringBuffer->get_index_from_back(index+1));
// check if either queue is invalid, if so just zero the destination buffer
if ( (!currentQueue0) || (!currentQueue0) ) {
// a valid entry is not in all queue positions while it is filling, use zeros
memset(static_cast<void*>(dest->data), 0, numSamples * sizeof(int16_t));
return true;
}
if (position.offset == 0) {
// single transfer
memcpy(static_cast<void*>(dest->data), static_cast<void*>(currentQueue0->data), numSamples * sizeof(int16_t));
return true;
}
// Otherwise we need to break the transfer into two memcpy because it will go across two source queues.
// Audio is stored in reverse order. That means the first sample (in time) goes in the last location in the audio block.
int16_t *destStart = dest->data;
int16_t *srcStart;
// Break the transfer into two. Copy the 'older' data first then the 'newer' data with respect to current time.
//currentQueue = m_ringBuffer->at(m_ringBuffer->get_index_from_back(index+1)); // The latest buffer is at the back. We need index+1 counting from the back.
srcStart = (currentQueue1->data + AUDIO_BLOCK_SAMPLES - position.offset);
size_t numData = position.offset;
memcpy(static_cast<void*>(destStart), static_cast<void*>(srcStart), numData * sizeof(int16_t));
//currentQueue = m_ringBuffer->at(m_ringBuffer->get_index_from_back(index)); // now grab the queue where the 'first' data sample was
destStart += numData; // we already wrote numData so advance by this much.
srcStart = (currentQueue0->data);
numData = AUDIO_BLOCK_SAMPLES - numData;
memcpy(static_cast<void*>(destStart), static_cast<void*>(srcStart), numData * sizeof(int16_t));
return true;
} else {
// EXTERNAL Memory
if (numSamples*sizeof(int16_t) <= m_slot->size() ) {
int currentPositionBytes = (int)m_slot->getWritePosition() - (int)(AUDIO_BLOCK_SAMPLES*sizeof(int16_t));
size_t offsetBytes = offsetSamples * sizeof(int16_t);
if ((int)offsetBytes <= currentPositionBytes) {
m_slot->setReadPosition(currentPositionBytes - offsetBytes);
} else {
// It's going to wrap around to the end of the slot
int readPosition = (int)m_slot->size() + currentPositionBytes - offsetBytes;
m_slot->setReadPosition((size_t)readPosition);
}
// This causes pops
m_slot->readAdvance16(dest->data, AUDIO_BLOCK_SAMPLES);
return true;
} else {
// numSampmles is > than total slot size
Serial.println("getSamples(): ERROR numSamples > total slot size");
return false;
}
}
}
}

73
src/common/AudioHelpers.cpp
Unescape View File

@ -0,0 +1,73 @@
/*
* AudioHelpers.cpp
*
* Created on: January 1, 2018
* Author: slascos
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Audio.h"
#include "LibBasicFunctions.h"
namespace BAGuitar {
size_t calcAudioSamples(float milliseconds)
{
return (size_t)((milliseconds*(AUDIO_SAMPLE_RATE_EXACT/1000.0f))+0.5f);
}
QueuePosition calcQueuePosition(size_t numSamples)
{
QueuePosition queuePosition;
queuePosition.index = (int)(numSamples / AUDIO_BLOCK_SAMPLES);
queuePosition.offset = numSamples % AUDIO_BLOCK_SAMPLES;
return queuePosition;
}
QueuePosition calcQueuePosition(float milliseconds) {
size_t numSamples = (int)((milliseconds*(AUDIO_SAMPLE_RATE_EXACT/1000.0f))+0.5f);
return calcQueuePosition(numSamples);
}
size_t calcOffset(QueuePosition position)
{
return (position.index*AUDIO_BLOCK_SAMPLES) + position.offset;
}
void alphaBlend(audio_block_t *out, audio_block_t *dry, audio_block_t* wet, float mix)
{
//Non-optimized version for illustrative purposes
// for (int i=0; i< AUDIO_BLOCK_SAMPLES; i++) {
// out->data[i] = (dry->data[i] * (1 - mix)) + (wet->data[i] * mix);
// }
// return;
// ARM DSP optimized
int16_t wetBuffer[AUDIO_BLOCK_SAMPLES];
int16_t dryBuffer[AUDIO_BLOCK_SAMPLES];
int16_t scaleFractWet = (int16_t)(mix * 32767.0f);
int16_t scaleFractDry = 32767-scaleFractWet;
arm_scale_q15(dry->data, scaleFractDry, 0, dryBuffer, AUDIO_BLOCK_SAMPLES);
arm_scale_q15(wet->data, scaleFractWet, 0, wetBuffer, AUDIO_BLOCK_SAMPLES);
arm_add_q15(wetBuffer, dryBuffer, out->data, AUDIO_BLOCK_SAMPLES);
}
void clearAudioBlock(audio_block_t *block)
{
memset(block->data, 0, sizeof(int16_t)*AUDIO_BLOCK_SAMPLES);
}
}

88
src/LibMemoryManagement.cpp → src/common/ExtMemSlot.cpp
Unescape View File

@ -1,5 +1,5 @@
/*
* LibMemoryManagement.cpp
* ExtMemSlot.cpp
*
* Created on: Jan 19, 2018
* Author: slascos
@ -25,7 +25,6 @@
namespace BAGuitar {
/////////////////////////////////////////////////////////////////////////////
// MEM SLOT
/////////////////////////////////////////////////////////////////////////////
@ -232,90 +231,5 @@ void ExtMemSlot::printStatus(void) const
String(" m_size:") + m_size);
}
/////////////////////////////////////////////////////////////////////////////
// EXTERNAL SRAM MANAGER
/////////////////////////////////////////////////////////////////////////////
bool ExternalSramManager::m_configured = false;
MemConfig ExternalSramManager::m_memConfig[BAGuitar::NUM_MEM_SLOTS];
ExternalSramManager::ExternalSramManager(unsigned numMemories)
{
// Initialize the static memory configuration structs
if (!m_configured) {
for (unsigned i=0; i < NUM_MEM_SLOTS; i++) {
m_memConfig[i].size = MEM_MAX_ADDR[i];
m_memConfig[i].totalAvailable = MEM_MAX_ADDR[i];
m_memConfig[i].nextAvailable = 0;
m_memConfig[i].m_spi = nullptr;
}
m_configured = true;
}
}
ExternalSramManager::~ExternalSramManager()
{
for (unsigned i=0; i < NUM_MEM_SLOTS; i++) {
if (m_memConfig[i].m_spi) { delete m_memConfig[i].m_spi; }
}
}
size_t ExternalSramManager::availableMemory(BAGuitar::MemSelect mem)
{
return m_memConfig[mem].totalAvailable;
}
bool ExternalSramManager::requestMemory(ExtMemSlot *slot, float delayMilliseconds, BAGuitar::MemSelect mem, bool useDma)
{
// convert the time to numer of samples
size_t delayLengthInt = (size_t)((delayMilliseconds*(AUDIO_SAMPLE_RATE_EXACT/1000.0f))+0.5f);
return requestMemory(slot, delayLengthInt * sizeof(int16_t), mem, useDma);
}
bool ExternalSramManager::requestMemory(ExtMemSlot *slot, size_t sizeBytes, BAGuitar::MemSelect mem, bool useDma)
{
if (m_memConfig[mem].totalAvailable >= sizeBytes) {
Serial.println(String("Configuring a slot for mem ") + mem);
// there is enough available memory for this request
slot->m_start = m_memConfig[mem].nextAvailable;
slot->m_end = slot->m_start + sizeBytes -1;
slot->m_currentWrPosition = slot->m_start; // init to start of slot
slot->m_currentRdPosition = slot->m_start; // init to start of slot
slot->m_size = sizeBytes;
if (!m_memConfig[mem].m_spi) {
if (useDma) {
m_memConfig[mem].m_spi = new BAGuitar::BASpiMemoryDMA(static_cast<BAGuitar::SpiDeviceId>(mem));
slot->m_useDma = true;
} else {
m_memConfig[mem].m_spi = new BAGuitar::BASpiMemory(static_cast<BAGuitar::SpiDeviceId>(mem));
slot->m_useDma = false;
}
if (!m_memConfig[mem].m_spi) {
} else {
Serial.println("Calling spi begin()");
m_memConfig[mem].m_spi->begin();
}
}
slot->m_spi = m_memConfig[mem].m_spi;
// Update the mem config
m_memConfig[mem].nextAvailable = slot->m_end+1;
m_memConfig[mem].totalAvailable -= sizeBytes;
slot->m_valid = true;
if (!slot->isEnabled()) { slot->enable(); }
Serial.println("Clear the memory\n"); Serial.flush();
slot->clear();
Serial.println("Done Request memory\n"); Serial.flush();
return true;
} else {
// there is not enough memory available for the request
return false;
}
}
}

113
src/common/ExternalSramManager.cpp
Unescape View File

@ -0,0 +1,113 @@
/*
* LibMemoryManagement.cpp
*
* Created on: Jan 19, 2018
* Author: slascos
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cstring>
#include <new>
#include "Audio.h"
#include "LibMemoryManagement.h"
namespace BAGuitar {
/////////////////////////////////////////////////////////////////////////////
// EXTERNAL SRAM MANAGER
/////////////////////////////////////////////////////////////////////////////
bool ExternalSramManager::m_configured = false;
MemConfig ExternalSramManager::m_memConfig[BAGuitar::NUM_MEM_SLOTS];
ExternalSramManager::ExternalSramManager(unsigned numMemories)
{
// Initialize the static memory configuration structs
if (!m_configured) {
for (unsigned i=0; i < NUM_MEM_SLOTS; i++) {
m_memConfig[i].size = MEM_MAX_ADDR[i];
m_memConfig[i].totalAvailable = MEM_MAX_ADDR[i];
m_memConfig[i].nextAvailable = 0;
m_memConfig[i].m_spi = nullptr;
}
m_configured = true;
}
}
ExternalSramManager::~ExternalSramManager()
{
for (unsigned i=0; i < NUM_MEM_SLOTS; i++) {
if (m_memConfig[i].m_spi) { delete m_memConfig[i].m_spi; }
}
}
size_t ExternalSramManager::availableMemory(BAGuitar::MemSelect mem)
{
return m_memConfig[mem].totalAvailable;
}
bool ExternalSramManager::requestMemory(ExtMemSlot *slot, float delayMilliseconds, BAGuitar::MemSelect mem, bool useDma)
{
// convert the time to numer of samples
size_t delayLengthInt = (size_t)((delayMilliseconds*(AUDIO_SAMPLE_RATE_EXACT/1000.0f))+0.5f);
return requestMemory(slot, delayLengthInt * sizeof(int16_t), mem, useDma);
}
bool ExternalSramManager::requestMemory(ExtMemSlot *slot, size_t sizeBytes, BAGuitar::MemSelect mem, bool useDma)
{
if (m_memConfig[mem].totalAvailable >= sizeBytes) {
Serial.println(String("Configuring a slot for mem ") + mem);
// there is enough available memory for this request
slot->m_start = m_memConfig[mem].nextAvailable;
slot->m_end = slot->m_start + sizeBytes -1;
slot->m_currentWrPosition = slot->m_start; // init to start of slot
slot->m_currentRdPosition = slot->m_start; // init to start of slot
slot->m_size = sizeBytes;
if (!m_memConfig[mem].m_spi) {
if (useDma) {
m_memConfig[mem].m_spi = new BAGuitar::BASpiMemoryDMA(static_cast<BAGuitar::SpiDeviceId>(mem));
slot->m_useDma = true;
} else {
m_memConfig[mem].m_spi = new BAGuitar::BASpiMemory(static_cast<BAGuitar::SpiDeviceId>(mem));
slot->m_useDma = false;
}
if (!m_memConfig[mem].m_spi) {
} else {
Serial.println("Calling spi begin()");
m_memConfig[mem].m_spi->begin();
}
}
slot->m_spi = m_memConfig[mem].m_spi;
// Update the mem config
m_memConfig[mem].nextAvailable = slot->m_end+1;
m_memConfig[mem].totalAvailable -= sizeBytes;
slot->m_valid = true;
if (!slot->isEnabled()) { slot->enable(); }
Serial.println("Clear the memory\n"); Serial.flush();
slot->clear();
Serial.println("Done Request memory\n"); Serial.flush();
return true;
} else {
// there is not enough memory available for the request
return false;
}
}
}

145
src/common/IirBiquadFilter.cpp
Unescape View File

@ -0,0 +1,145 @@
/*
* IirBiquadFilter.cpp
*
* Created on: January 1, 2018
* Author: slascos
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Audio.h"
#include "LibBasicFunctions.h"
namespace BAGuitar {
////////////////////////////////////////////////////
// IirBiQuadFilter
////////////////////////////////////////////////////
IirBiQuadFilter::IirBiQuadFilter(unsigned numStages, const int32_t *coeffs, int coeffShift)
: NUM_STAGES(numStages)
{
m_coeffs = new int32_t[5*numStages];
memcpy(m_coeffs, coeffs, 5*numStages * sizeof(int32_t));
m_state = new int32_t[4*numStages];
arm_biquad_cascade_df1_init_q31(&m_iirCfg, numStages, m_coeffs, m_state, coeffShift);
}
IirBiQuadFilter::~IirBiQuadFilter()
{
if (m_coeffs) delete [] m_coeffs;
if (m_state) delete [] m_state;
}
bool IirBiQuadFilter::process(int16_t *output, int16_t *input, size_t numSamples)
{
if (!output) return false;
if (!input) {
// send zeros
memset(output, 0, numSamples * sizeof(int16_t));
} else {
// create convertion buffers on teh stack
int32_t input32[numSamples];
int32_t output32[numSamples];
for (size_t i=0; i<numSamples; i++) {
input32[i] = (int32_t)(input[i]);
}
arm_biquad_cascade_df1_fast_q31(&m_iirCfg, input32, output32, numSamples);
for (size_t i=0; i<numSamples; i++) {
output[i] = (int16_t)(output32[i] & 0xffff);
}
}
return true;
}
// HIGH QUALITY
IirBiQuadFilterHQ::IirBiQuadFilterHQ(unsigned numStages, const int32_t *coeffs, int coeffShift)
: NUM_STAGES(numStages)
{
m_coeffs = new int32_t[5*numStages];
memcpy(m_coeffs, coeffs, 5*numStages * sizeof(int32_t));
m_state = new int64_t[4*numStages];;
arm_biquad_cas_df1_32x64_init_q31(&m_iirCfg, numStages, m_coeffs, m_state, coeffShift);
}
IirBiQuadFilterHQ::~IirBiQuadFilterHQ()
{
if (m_coeffs) delete [] m_coeffs;
if (m_state) delete [] m_state;
}
bool IirBiQuadFilterHQ::process(int16_t *output, int16_t *input, size_t numSamples)
{
if (!output) return false;
if (!input) {
// send zeros
memset(output, 0, numSamples * sizeof(int16_t));
} else {
// create convertion buffers on teh stack
int32_t input32[numSamples];
int32_t output32[numSamples];
for (size_t i=0; i<numSamples; i++) {
input32[i] = (int32_t)(input[i]);
}
arm_biquad_cas_df1_32x64_q31(&m_iirCfg, input32, output32, numSamples);
for (size_t i=0; i<numSamples; i++) {
output[i] = (int16_t)(output32[i] & 0xffff);
}
}
return true;
}
// FLOAT
IirBiQuadFilterFloat::IirBiQuadFilterFloat(unsigned numStages, const float *coeffs)
: NUM_STAGES(numStages)
{
m_coeffs = new float[5*numStages];
memcpy(m_coeffs, coeffs, 5*numStages * sizeof(float));
m_state = new float[4*numStages];;
arm_biquad_cascade_df2T_init_f32(&m_iirCfg, numStages, m_coeffs, m_state);
}
IirBiQuadFilterFloat::~IirBiQuadFilterFloat()
{
if (m_coeffs) delete [] m_coeffs;
if (m_state) delete [] m_state;
}
bool IirBiQuadFilterFloat::process(float *output, float *input, size_t numSamples)
{
if (!output) return false;
if (!input) {
// send zeros
memset(output, 0, numSamples * sizeof(float));
} else {
arm_biquad_cascade_df2T_f32(&m_iirCfg, input, output, numSamples);
}
return true;
}
}

6
src/AudioEffectAnalogDelay.cpp → src/effects/AudioEffectAnalogDelay.cpp
Unescape View File

@ -29,11 +29,11 @@ constexpr int32_t DEFAULT_COEFFS[5*NUM_IIR_STAGES] = {
};
AudioEffectAnalogDelay::AudioEffectAnalogDelay(float maxDelay)
AudioEffectAnalogDelay::AudioEffectAnalogDelay(float maxDelayMs)
: AudioStream(1, m_inputQueueArray)
{
m_memory = new AudioDelay(maxDelay);
m_maxDelaySamples = calcAudioSamples(maxDelay);
m_memory = new AudioDelay(maxDelayMs);
m_maxDelaySamples = calcAudioSamples(maxDelayMs);
m_iir = new IirBiQuadFilterHQ(NUM_IIR_STAGES, reinterpret_cast<const int32_t *>(&DEFAULT_COEFFS), IIR_COEFF_SHIFT);
}

0
src/BAAudioEffectDelayExternal.cpp → src/effects/BAAudioEffectDelayExternal.cpp
Unescape View File

0
src/BAAudioControlWM8731.cpp → src/peripherals/BAAudioControlWM8731.cpp
Unescape View File

0
src/BAGpio.cpp → src/peripherals/BAGpio.cpp
Unescape View File

467
src/peripherals/BASpiMemory.cpp
Unescape View File

@ -0,0 +1,467 @@
/*
* BASpiMemory.cpp
*
* Created on: May 22, 2017
* Author: slascos
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Arduino.h"
#include "BASpiMemory.h"
namespace BAGuitar {
// MEM0 Settings
constexpr int SPI_CS_MEM0 = 15;
constexpr int SPI_MOSI_MEM0 = 7;
constexpr int SPI_MISO_MEM0 = 8;
constexpr int SPI_SCK_MEM0 = 14;
// MEM1 Settings
constexpr int SPI_CS_MEM1 = 31;
constexpr int SPI_MOSI_MEM1 = 21;
constexpr int SPI_MISO_MEM1 = 5;
constexpr int SPI_SCK_MEM1 = 20;
// SPI Constants
constexpr int SPI_WRITE_MODE_REG = 0x1;
constexpr int SPI_WRITE_CMD = 0x2;
constexpr int SPI_READ_CMD = 0x3;
constexpr int SPI_ADDR_2_MASK = 0xFF0000;
constexpr int SPI_ADDR_2_SHIFT = 16;
constexpr int SPI_ADDR_1_MASK = 0x00FF00;
constexpr int SPI_ADDR_1_SHIFT = 8;
constexpr int SPI_ADDR_0_MASK = 0x0000FF;
constexpr int CMD_ADDRESS_SIZE = 4;
constexpr int MAX_DMA_XFER_SIZE = 0x4000;
BASpiMemory::BASpiMemory(SpiDeviceId memDeviceId)
{
m_memDeviceId = memDeviceId;
m_settings = {20000000, MSBFIRST, SPI_MODE0};
}
BASpiMemory::BASpiMemory(SpiDeviceId memDeviceId, uint32_t speedHz)
{
m_memDeviceId = memDeviceId;
m_settings = {speedHz, MSBFIRST, SPI_MODE0};
}
// Intitialize the correct Arduino SPI interface
void BASpiMemory::begin()
{
switch (m_memDeviceId) {
case SpiDeviceId::SPI_DEVICE0 :
m_csPin = SPI_CS_MEM0;
m_spi = &SPI;
m_spi->setMOSI(SPI_MOSI_MEM0);
m_spi->setMISO(SPI_MISO_MEM0);
m_spi->setSCK(SPI_SCK_MEM0);
m_spi->begin();
break;
#if defined(__MK64FX512__) || defined(__MK66FX1M0__)
case SpiDeviceId::SPI_DEVICE1 :
m_csPin = SPI_CS_MEM1;
m_spi = &SPI1;
m_spi->setMOSI(SPI_MOSI_MEM1);
m_spi->setMISO(SPI_MISO_MEM1);
m_spi->setSCK(SPI_SCK_MEM1);
m_spi->begin();
break;
#endif
default :
// unreachable since memDeviceId is an enumerated class
return;
}
pinMode(m_csPin, OUTPUT);
digitalWrite(m_csPin, HIGH);
m_started = true;
}
BASpiMemory::~BASpiMemory() {
}
// Single address write
void BASpiMemory::write(size_t address, uint8_t data)
{
m_spi->beginTransaction(m_settings);
digitalWrite(m_csPin, LOW);
m_spi->transfer(SPI_WRITE_CMD);
m_spi->transfer((address & SPI_ADDR_2_MASK) >> SPI_ADDR_2_SHIFT);
m_spi->transfer((address & SPI_ADDR_1_MASK) >> SPI_ADDR_1_SHIFT);
m_spi->transfer((address & SPI_ADDR_0_MASK));
m_spi->transfer(data);
m_spi->endTransaction();
digitalWrite(m_csPin, HIGH);
}
// Single address write
void BASpiMemory::write(size_t address, uint8_t *src, size_t numBytes)
{
uint8_t *dataPtr = src;
m_spi->beginTransaction(m_settings);
digitalWrite(m_csPin, LOW);
m_spi->transfer(SPI_WRITE_CMD);
m_spi->transfer((address & SPI_ADDR_2_MASK) >> SPI_ADDR_2_SHIFT);
m_spi->transfer((address & SPI_ADDR_1_MASK) >> SPI_ADDR_1_SHIFT);
m_spi->transfer((address & SPI_ADDR_0_MASK));
for (size_t i=0; i < numBytes; i++) {
m_spi->transfer(*dataPtr++);
}
m_spi->endTransaction();
digitalWrite(m_csPin, HIGH);
}
void BASpiMemory::zero(size_t address, size_t numBytes)
{
m_spi->beginTransaction(m_settings);
digitalWrite(m_csPin, LOW);
m_spi->transfer(SPI_WRITE_CMD);
m_spi->transfer((address & SPI_ADDR_2_MASK) >> SPI_ADDR_2_SHIFT);
m_spi->transfer((address & SPI_ADDR_1_MASK) >> SPI_ADDR_1_SHIFT);
m_spi->transfer((address & SPI_ADDR_0_MASK));
for (size_t i=0; i < numBytes; i++) {
m_spi->transfer(0);
}
m_spi->endTransaction();
digitalWrite(m_csPin, HIGH);
}
void BASpiMemory::write16(size_t address, uint16_t data)
{
m_spi->beginTransaction(m_settings);
digitalWrite(m_csPin, LOW);
m_spi->transfer16((SPI_WRITE_CMD << 8) | (address >> 16) );
m_spi->transfer16(address & 0xFFFF);
m_spi->transfer16(data);
m_spi->endTransaction();
digitalWrite(m_csPin, HIGH);
}
void BASpiMemory::write16(size_t address, uint16_t *src, size_t numWords)
{
uint16_t *dataPtr = src;
m_spi->beginTransaction(m_settings);
digitalWrite(m_csPin, LOW);
m_spi->transfer16((SPI_WRITE_CMD << 8) | (address >> 16) );
m_spi->transfer16(address & 0xFFFF);
for (size_t i=0; i<numWords; i++) {
m_spi->transfer16(*dataPtr++);
}
m_spi->endTransaction();
digitalWrite(m_csPin, HIGH);
}
void BASpiMemory::zero16(size_t address, size_t numWords)
{
m_spi->beginTransaction(m_settings);
digitalWrite(m_csPin, LOW);
m_spi->transfer16((SPI_WRITE_CMD << 8) | (address >> 16) );
m_spi->transfer16(address & 0xFFFF);
for (size_t i=0; i<numWords; i++) {
m_spi->transfer16(0);
}
m_spi->endTransaction();
digitalWrite(m_csPin, HIGH);
Serial.println("DONE!");
}
// single address read
uint8_t BASpiMemory::read(size_t address)
{
int data;
m_spi->beginTransaction(m_settings);
digitalWrite(m_csPin, LOW);
m_spi->transfer(SPI_READ_CMD);
m_spi->transfer((address & SPI_ADDR_2_MASK) >> SPI_ADDR_2_SHIFT);
m_spi->transfer((address & SPI_ADDR_1_MASK) >> SPI_ADDR_1_SHIFT);
m_spi->transfer((address & SPI_ADDR_0_MASK));
data = m_spi->transfer(0);
m_spi->endTransaction();
digitalWrite(m_csPin, HIGH);
return data;
}
void BASpiMemory::read(size_t address, uint8_t *dest, size_t numBytes)
{
uint8_t *dataPtr = dest;
m_spi->beginTransaction(m_settings);
digitalWrite(m_csPin, LOW);
m_spi->transfer(SPI_READ_CMD);
m_spi->transfer((address & SPI_ADDR_2_MASK) >> SPI_ADDR_2_SHIFT);
m_spi->transfer((address & SPI_ADDR_1_MASK) >> SPI_ADDR_1_SHIFT);
m_spi->transfer((address & SPI_ADDR_0_MASK));
for (size_t i=0; i<numBytes; i++) {
*dataPtr++ = m_spi->transfer(0);
}
m_spi->endTransaction();
digitalWrite(m_csPin, HIGH);
}
uint16_t BASpiMemory::read16(size_t address)
{
uint16_t data;
m_spi->beginTransaction(m_settings);
digitalWrite(m_csPin, LOW);
m_spi->transfer16((SPI_READ_CMD << 8) | (address >> 16) );
m_spi->transfer16(address & 0xFFFF);
data = m_spi->transfer16(0);
m_spi->endTransaction();
digitalWrite(m_csPin, HIGH);
return data;
}
void BASpiMemory::read16(size_t address, uint16_t *dest, size_t numWords)
{
uint16_t *dataPtr = dest;
m_spi->beginTransaction(m_settings);
digitalWrite(m_csPin, LOW);
m_spi->transfer16((SPI_READ_CMD << 8) | (address >> 16) );
m_spi->transfer16(address & 0xFFFF);
for (size_t i=0; i<numWords; i++) {
*dataPtr++ = m_spi->transfer16(0);
}
m_spi->endTransaction();
digitalWrite(m_csPin, HIGH);
}
/////////////////////////////////////////////////////////////////////////////
// BASpiMemoryDMA
/////////////////////////////////////////////////////////////////////////////
BASpiMemoryDMA::BASpiMemoryDMA(SpiDeviceId memDeviceId)
: BASpiMemory(memDeviceId)
{
int cs;
switch (memDeviceId) {
case SpiDeviceId::SPI_DEVICE0 :
cs = SPI_CS_MEM0;
m_cs = new ActiveLowChipSelect(cs, m_settings);
break;
case SpiDeviceId::SPI_DEVICE1 :
cs = SPI_CS_MEM1;
m_cs = new ActiveLowChipSelect1(cs, m_settings);
break;
default :
cs = SPI_CS_MEM0;
}
// add 4 bytes to buffer for SPI CMD and 3 bytes of address
m_txCommandBuffer = new uint8_t[CMD_ADDRESS_SIZE];
m_rxCommandBuffer = new uint8_t[CMD_ADDRESS_SIZE];
m_txTransfer = new DmaSpi::Transfer[2];
m_rxTransfer = new DmaSpi::Transfer[2];
}
BASpiMemoryDMA::BASpiMemoryDMA(SpiDeviceId memDeviceId, uint32_t speedHz)
: BASpiMemory(memDeviceId, speedHz)
{
int cs;
switch (memDeviceId) {
case SpiDeviceId::SPI_DEVICE0 :
cs = SPI_CS_MEM0;
m_cs = new ActiveLowChipSelect(cs, m_settings);
break;
case SpiDeviceId::SPI_DEVICE1 :
cs = SPI_CS_MEM1;
m_cs = new ActiveLowChipSelect1(cs, m_settings);
break;
default :
cs = SPI_CS_MEM0;
}
m_txCommandBuffer = new uint8_t[CMD_ADDRESS_SIZE];
m_rxCommandBuffer = new uint8_t[CMD_ADDRESS_SIZE];
m_txTransfer = new DmaSpi::Transfer[2];
m_rxTransfer = new DmaSpi::Transfer[2];
}
BASpiMemoryDMA::~BASpiMemoryDMA()
{
delete m_cs;
if (m_txTransfer) delete [] m_txTransfer;
if (m_rxTransfer) delete [] m_rxTransfer;
if (m_txCommandBuffer) delete [] m_txCommandBuffer;
if (m_rxCommandBuffer) delete [] m_txCommandBuffer;
}
void BASpiMemoryDMA::m_setSpiCmdAddr(int command, size_t address, uint8_t *dest)
{
dest[0] = command;
dest[1] = ((address & SPI_ADDR_2_MASK) >> SPI_ADDR_2_SHIFT);
dest[2] = ((address & SPI_ADDR_1_MASK) >> SPI_ADDR_1_SHIFT);
dest[3] = ((address & SPI_ADDR_0_MASK));
}
void BASpiMemoryDMA::begin(void)
{
switch (m_memDeviceId) {
case SpiDeviceId::SPI_DEVICE0 :
m_csPin = SPI_CS_MEM0;
m_spi = &SPI;
m_spi->setMOSI(SPI_MOSI_MEM0);
m_spi->setMISO(SPI_MISO_MEM0);
m_spi->setSCK(SPI_SCK_MEM0);
m_spi->begin();
//m_spiDma = &DMASPI0;
m_spiDma = new DmaSpiGeneric();
break;
#if defined(__MK64FX512__) || defined(__MK66FX1M0__)
case SpiDeviceId::SPI_DEVICE1 :
m_csPin = SPI_CS_MEM1;
m_spi = &SPI1;
m_spi->setMOSI(SPI_MOSI_MEM1);
m_spi->setMISO(SPI_MISO_MEM1);
m_spi->setSCK(SPI_SCK_MEM1);
m_spi->begin();
m_spiDma = new DmaSpiGeneric(1);
//m_spiDma = &DMASPI1;
break;
#endif
default :
// unreachable since memDeviceId is an enumerated class
return;
}
m_spiDma->begin();
m_spiDma->start();
m_started = true;
}
// SPI must build up a payload that starts the teh CMD/Address first. It will cycle
// through the payloads in a circular buffer and use the transfer objects to check if they
// are done before continuing.
void BASpiMemoryDMA::write(size_t address, uint8_t *src, size_t numBytes)
{
size_t bytesRemaining = numBytes;
uint8_t *srcPtr = src;
size_t nextAddress = address;
while (bytesRemaining > 0) {
m_txXferCount = min(bytesRemaining, MAX_DMA_XFER_SIZE);
while ( m_txTransfer[1].busy()) {} // wait until not busy
m_setSpiCmdAddr(SPI_WRITE_CMD, nextAddress, m_txCommandBuffer);
m_txTransfer[1] = DmaSpi::Transfer(m_txCommandBuffer, CMD_ADDRESS_SIZE, nullptr, 0, m_cs, TransferType::NO_END_CS);
m_spiDma->registerTransfer(m_txTransfer[1]);
while ( m_txTransfer[0].busy()) {} // wait until not busy
m_txTransfer[0] = DmaSpi::Transfer(srcPtr, m_txXferCount, nullptr, 0, m_cs, TransferType::NO_START_CS);
m_spiDma->registerTransfer(m_txTransfer[0]);
bytesRemaining -= m_txXferCount;
srcPtr += m_txXferCount;
nextAddress += m_txXferCount;
}
}
void BASpiMemoryDMA::zero(size_t address, size_t numBytes)
{
size_t bytesRemaining = numBytes;
size_t nextAddress = address;
while (bytesRemaining > 0) {
m_txXferCount = min(bytesRemaining, MAX_DMA_XFER_SIZE);
while ( m_txTransfer[1].busy()) {} // wait until not busy
m_setSpiCmdAddr(SPI_WRITE_CMD, nextAddress, m_txCommandBuffer);
m_txTransfer[1] = DmaSpi::Transfer(m_txCommandBuffer, CMD_ADDRESS_SIZE, nullptr, 0, m_cs, TransferType::NO_END_CS);
m_spiDma->registerTransfer(m_txTransfer[1]);
while ( m_txTransfer[0].busy()) {} // wait until not busy
m_txTransfer[0] = DmaSpi::Transfer(nullptr, m_txXferCount, nullptr, 0, m_cs, TransferType::NO_START_CS);
m_spiDma->registerTransfer(m_txTransfer[0]);
bytesRemaining -= m_txXferCount;
nextAddress += m_txXferCount;
}
}
void BASpiMemoryDMA::write16(size_t address, uint16_t *src, size_t numWords)
{
write(address, reinterpret_cast<uint8_t*>(src), sizeof(uint16_t)*numWords);
}
void BASpiMemoryDMA::zero16(size_t address, size_t numWords)
{
zero(address, sizeof(uint16_t)*numWords);
}
void BASpiMemoryDMA::read(size_t address, uint8_t *dest, size_t numBytes)
{
size_t bytesRemaining = numBytes;
uint8_t *destPtr = dest;
size_t nextAddress = address;
while (bytesRemaining > 0) {
m_setSpiCmdAddr(SPI_READ_CMD, nextAddress, m_rxCommandBuffer);
while ( m_rxTransfer[1].busy()) {}
m_rxTransfer[1] = DmaSpi::Transfer(m_rxCommandBuffer, CMD_ADDRESS_SIZE, nullptr, 0, m_cs, TransferType::NO_END_CS);
m_spiDma->registerTransfer(m_rxTransfer[1]);
m_rxXferCount = min(bytesRemaining, MAX_DMA_XFER_SIZE);
while ( m_rxTransfer[0].busy()) {}
m_rxTransfer[0] = DmaSpi::Transfer(nullptr, m_rxXferCount, destPtr, 0, m_cs, TransferType::NO_START_CS);
m_spiDma->registerTransfer(m_rxTransfer[0]);
bytesRemaining -= m_rxXferCount;
destPtr += m_rxXferCount;
nextAddress += m_rxXferCount;
}
}
void BASpiMemoryDMA::read16(size_t address, uint16_t *dest, size_t numWords)
{
read(address, reinterpret_cast<uint8_t*>(dest), sizeof(uint16_t)*numWords);
}
bool BASpiMemoryDMA::isWriteBusy(void) const
{
return (m_txTransfer[0].busy() or m_txTransfer[1].busy());
}
bool BASpiMemoryDMA::isReadBusy(void) const
{
return (m_rxTransfer[0].busy() or m_rxTransfer[1].busy());
}
} /* namespace BAGuitar */
Write Preview
Loading…
Cancel
Save