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add output_pt8211

dds
Frank Bösing 5 年之前
父節點
92c7914a42
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ad7b4f1644
共有 2 個檔案被更改，包括 103 行新增 和 26 行删除
分割檢視 顯示文件統計
  1. +103
    -24
      output_pt8211.cpp
  2. +0
    -2
      output_pt8211.h

+ 103
- 24
output_pt8211.cpp 查看文件

@@ -26,11 +26,11 @@

//Adapted to PT8211, Frank Bösing, Ben-Rheinland

#if !defined(__IMXRT1052__) && !defined(__IMXRT1062__)

#include <Arduino.h>
#include "output_pt8211.h"
#include "memcpy_audio.h"
#include "utility/imxrt_hw.h"

audio_block_t * AudioOutputPT8211::block_left_1st = NULL;
audio_block_t * AudioOutputPT8211::block_right_1st = NULL;
@@ -40,9 +40,9 @@ uint16_t AudioOutputPT8211::block_left_offset = 0;
uint16_t AudioOutputPT8211::block_right_offset = 0;
bool AudioOutputPT8211::update_responsibility = false;
#if defined(AUDIO_PT8211_OVERSAMPLING)
DMAMEM static uint32_t i2s_tx_buffer[AUDIO_BLOCK_SAMPLES*4];
static uint32_t i2s_tx_buffer[AUDIO_BLOCK_SAMPLES*4];
#else
DMAMEM static uint32_t i2s_tx_buffer[AUDIO_BLOCK_SAMPLES];
static uint32_t i2s_tx_buffer[AUDIO_BLOCK_SAMPLES];
#endif
DMAChannel AudioOutputPT8211::dma(false);

@@ -55,9 +55,9 @@ void AudioOutputPT8211::begin(void)

// TODO: should we set & clear the I2S_TCSR_SR bit here?
config_i2s();
#if defined(KINETISK)
CORE_PIN22_CONFIG = PORT_PCR_MUX(6); // pin 22, PTC1, I2S0_TXD0

#if defined(KINETISK)
dma.TCD->SADDR = i2s_tx_buffer;
dma.TCD->SOFF = 2;
dma.TCD->ATTR = DMA_TCD_ATTR_SSIZE(1) | DMA_TCD_ATTR_DSIZE(1);
@@ -69,13 +69,33 @@ void AudioOutputPT8211::begin(void)
dma.TCD->DLASTSGA = 0;
dma.TCD->BITER_ELINKNO = sizeof(i2s_tx_buffer) / 2;
dma.TCD->CSR = DMA_TCD_CSR_INTHALF | DMA_TCD_CSR_INTMAJOR;
#endif
dma.triggerAtHardwareEvent(DMAMUX_SOURCE_I2S0_TX);
update_responsibility = update_setup();
dma.enable();

dma.triggerAtHardwareEvent(DMAMUX_SOURCE_I2S0_TX);
I2S0_TCSR |= I2S_TCSR_TE | I2S_TCSR_BCE | I2S_TCSR_FRDE | I2S_TCSR_FR;

#elif defined(__IMXRT1052__) || defined(__IMXRT1062__)

CORE_PIN6_CONFIG = 3; //1:TX_DATA0

dma.TCD->SADDR = i2s_tx_buffer;
dma.TCD->SOFF = 2;
dma.TCD->ATTR = DMA_TCD_ATTR_SSIZE(1) | DMA_TCD_ATTR_DSIZE(1);
dma.TCD->NBYTES_MLNO = 2;
dma.TCD->SLAST = -sizeof(i2s_tx_buffer);
dma.TCD->DOFF = 0;
dma.TCD->CITER_ELINKNO = sizeof(i2s_tx_buffer) / 2;
dma.TCD->DLASTSGA = 0;
dma.TCD->BITER_ELINKNO = sizeof(i2s_tx_buffer) / 2;
dma.TCD->CSR = DMA_TCD_CSR_INTHALF | DMA_TCD_CSR_INTMAJOR;
dma.TCD->DADDR = (void *)((uint32_t)&I2S1_TDR0);
dma.triggerAtHardwareEvent(DMAMUX_SOURCE_SAI1_TX);

I2S1_RCSR |= I2S_RCSR_RE;
I2S1_TCSR |= I2S_TCSR_TE | I2S_TCSR_BCE | I2S_TCSR_FRDE;
#endif
update_responsibility = update_setup();
dma.attachInterrupt(isr);
dma.enable();
}

void AudioOutputPT8211::isr(void)
@@ -105,7 +125,7 @@ void AudioOutputPT8211::isr(void)
blockR = AudioOutputPT8211::block_right_1st;
offsetL = AudioOutputPT8211::block_left_offset;
offsetR = AudioOutputPT8211::block_right_offset;
#if defined(AUDIO_PT8211_OVERSAMPLING)
static int32_t oldL = 0;
static int32_t oldR = 0;
@@ -134,12 +154,12 @@ void AudioOutputPT8211::isr(void)
for (int i=0; i< AUDIO_BLOCK_SAMPLES / 2; i++, offsetL++, offsetR++) {
int32_t valL = blockL->data[offsetL];
int32_t valR = blockR->data[offsetR];
int32_t combL[3] = {0};
static int32_t combLOld[2] = {0};
int32_t combR[3] = {0};
static int32_t combROld[2] = {0};
combL[0] = valL - oldL;
combR[0] = valR - oldR;
combL[1] = combL[0] - combLOld[0];
@@ -186,7 +206,7 @@ void AudioOutputPT8211::isr(void)
offsetL += AUDIO_BLOCK_SAMPLES / 2;
offsetR += AUDIO_BLOCK_SAMPLES / 2;
#endif //defined(AUDIO_PT8211_OVERSAMPLING)
} else if (blockL) {
#if defined(AUDIO_PT8211_OVERSAMPLING)
#if defined(AUDIO_PT8211_INTERPOLATION_LINEAR)
@@ -210,14 +230,14 @@ void AudioOutputPT8211::isr(void)

int32_t combL[3] = {0};
static int32_t combLOld[2] = {0};
combL[0] = valL - oldL;
combL[1] = combL[0] - combLOld[0];
combL[2] = combL[1] - combLOld[1];
// combL[2] now holds input val
combLOld[0] = combL[0];
combLOld[1] = combL[1];
for (int j = 0; j < 4; j++) {
int32_t integrateL[3];
static int32_t integrateLOld[3] = {0};
@@ -230,7 +250,7 @@ void AudioOutputPT8211::isr(void)
integrateLOld[1] = integrateL[1];
integrateLOld[2] = integrateL[2];
}
// fill right channel with zeros:
*(dest+1) = 0;
*(dest+3) = 0;
@@ -242,7 +262,7 @@ void AudioOutputPT8211::isr(void)
#else
#error no interpolation method defined for oversampling.
#endif //defined(AUDIO_PT8211_INTERPOLATION_LINEAR)
#else
#else
memcpy_tointerleaveL(dest, blockL->data + offsetL);
offsetL += (AUDIO_BLOCK_SAMPLES / 2);
#endif //defined(AUDIO_PT8211_OVERSAMPLING)
@@ -269,14 +289,14 @@ void AudioOutputPT8211::isr(void)

int32_t combR[3] = {0};
static int32_t combROld[2] = {0};
combR[0] = valR - oldR;
combR[1] = combR[0] - combROld[0];
combR[2] = combR[1] - combROld[1];
// combR[2] now holds input val
combROld[0] = combR[0];
combROld[1] = combR[1];
for (int j = 0; j < 4; j++) {
int32_t integrateR[3];
static int32_t integrateROld[3] = {0};
@@ -289,7 +309,7 @@ void AudioOutputPT8211::isr(void)
integrateROld[1] = integrateR[1];
integrateROld[2] = integrateR[2];
}
// fill left channel with zeros:
*(dest+0) = 0;
*(dest+2) = 0;
@@ -309,7 +329,7 @@ void AudioOutputPT8211::isr(void)
#if defined(AUDIO_PT8211_OVERSAMPLING)
memset(dest,0,AUDIO_BLOCK_SAMPLES*8);
#else
memset(dest,0,AUDIO_BLOCK_SAMPLES*2);
memset(dest,0,AUDIO_BLOCK_SAMPLES*2);
#endif
return;
}
@@ -378,7 +398,7 @@ void AudioOutputPT8211::update(void)
}
}

#if defined(KINETISK)
// MCLK needs to be 48e6 / 1088 * 256 = 11.29411765 MHz -> 44.117647 kHz sample rate
//
#if F_CPU == 96000000 || F_CPU == 48000000 || F_CPU == 24000000
@@ -425,9 +445,11 @@ void AudioOutputPT8211::update(void)
#define MCLK_SRC 0 // system clock
#endif
#endif
#endif

void AudioOutputPT8211::config_i2s(void)
{
#if defined(KINETISK)
SIM_SCGC6 |= SIM_SCGC6_I2S;
SIM_SCGC7 |= SIM_SCGC7_DMA;
SIM_SCGC6 |= SIM_SCGC6_DMAMUX;
@@ -457,8 +479,65 @@ void AudioOutputPT8211::config_i2s(void)
// configure pin mux for 3 clock signals
CORE_PIN23_CONFIG = PORT_PCR_MUX(6); // pin 23, PTC2, I2S0_TX_FS (LRCLK)
CORE_PIN9_CONFIG = PORT_PCR_MUX(6); // pin 9, PTC3, I2S0_TX_BCLK
#if 0
CORE_PIN11_CONFIG = PORT_PCR_MUX(6); // pin 11, PTC6, I2S0_MCLK
//CORE_PIN11_CONFIG = PORT_PCR_MUX(6); // pin 11, PTC6, I2S0_MCLK
#elif ( defined(__IMXRT1052__) || defined(__IMXRT1062__) )

CCM_CCGR5 |= CCM_CCGR5_SAI1(CCM_CCGR_ON);
//PLL:
int fs = AUDIO_SAMPLE_RATE_EXACT;
// PLL between 27*24 = 648MHz und 54*24=1296MHz
int n1 = 4; //SAI prescaler 4 => (n1*n2) = multiple of 4
int n2 = 1 + (24000000 * 27) / (fs * 256 * n1);

double C = ((double)fs * 256 * n1 * n2) / 24000000;
int c0 = C;
int c2 = 10000;
int c1 = C * c2 - (c0 * c2);
set_audioClock(c0, c1, c2);

// clear SAI1_CLK register locations
CCM_CSCMR1 = (CCM_CSCMR1 & ~(CCM_CSCMR1_SAI1_CLK_SEL_MASK))
| CCM_CSCMR1_SAI1_CLK_SEL(2); // &0x03 // (0,1,2): PLL3PFD0, PLL5, PLL4
CCM_CS1CDR = (CCM_CS1CDR & ~(CCM_CS1CDR_SAI1_CLK_PRED_MASK | CCM_CS1CDR_SAI1_CLK_PODF_MASK))
| CCM_CS1CDR_SAI1_CLK_PRED(n1-1) // &0x07
| CCM_CS1CDR_SAI1_CLK_PODF(n2-1); // &0x3f

IOMUXC_GPR_GPR1 = (IOMUXC_GPR_GPR1 & ~(IOMUXC_GPR_GPR1_SAI1_MCLK1_SEL_MASK))
| (IOMUXC_GPR_GPR1_SAI1_MCLK_DIR | IOMUXC_GPR_GPR1_SAI1_MCLK1_SEL(0)); //Select MCLK

if (I2S1_TCSR & I2S_TCSR_TE) return;

// CORE_PIN23_CONFIG = 3; //1:MCLK
CORE_PIN21_CONFIG = 3; //1:RX_BCLK
CORE_PIN20_CONFIG = 3; //1:RX_SYNC
// CORE_PIN6_CONFIG = 3; //1:TX_DATA0
// CORE_PIN7_CONFIG = 3; //1:RX_DATA0

int rsync = 0;
int tsync = 1;
#if defined(AUDIO_PT8211_OVERSAMPLING)
int div = 0;
#else
int div = 3;
#endif
// configure transmitter
I2S1_TMR = 0;
I2S1_TCR1 = I2S_TCR1_RFW(0);
I2S1_TCR2 = I2S_TCR2_SYNC(tsync) | I2S_TCR2_BCP | I2S_TCR2_MSEL(1) | I2S_TCR2_BCD | I2S_TCR2_DIV(div);
I2S1_TCR3 = I2S_TCR3_TCE;
// I2S1_TCR4 = I2S_TCR4_FRSZ(1) | I2S_TCR4_SYWD(15) | I2S_TCR4_MF | I2S_TCR4_FSE | I2S_TCR4_FSP | I2S_TCR4_FSD; //TDA1543
I2S1_TCR4 = I2S_TCR4_FRSZ(1) | I2S_TCR4_SYWD(15) | I2S_TCR4_MF /*| I2S_TCR4_FSE*/ | I2S_TCR4_FSP | I2S_TCR4_FSD; //PT8211
I2S1_TCR5 = I2S_TCR5_WNW(15) | I2S_TCR5_W0W(15) | I2S_TCR5_FBT(15);

I2S1_RMR = 0;
//I2S1_RCSR = (1<<25); //Reset
I2S1_RCR1 = I2S_RCR1_RFW(0);
I2S1_RCR2 = I2S_RCR2_SYNC(rsync) | I2S_RCR2_BCP | I2S_RCR2_MSEL(1) | I2S_TCR2_BCD | I2S_TCR2_DIV(div);
I2S1_RCR3 = I2S_RCR3_RCE;
// I2S1_TCR4 = I2S_TCR4_FRSZ(1) | I2S_TCR4_SYWD(15) | I2S_TCR4_MF | I2S_TCR4_FSE | I2S_TCR4_FSP | I2S_TCR4_FSD; //TDA1543
I2S1_RCR4 = I2S_RCR4_FRSZ(1) | I2S_RCR4_SYWD(15) | I2S_RCR4_MF /*| I2S_RCR4_FSE*/ | I2S_RCR4_FSP | I2S_RCR4_FSD; //PT8211
I2S1_RCR5 = I2S_RCR5_WNW(15) | I2S_RCR5_W0W(15) | I2S_RCR5_FBT(15);

#endif
}
#endif

+ 0
- 2
output_pt8211.h 查看文件

@@ -45,9 +45,7 @@ public:
AudioOutputPT8211(void) : AudioStream(2, inputQueueArray) { begin(); }
virtual void update(void);
void begin(void);
//friend class AudioInputI2S;
protected:
//AudioOutputI2S(int dummy): AudioStream(2, inputQueueArray) {} // to be used only inside AudioOutputI2Sslave !!
static void config_i2s(void);
static audio_block_t *block_left_1st;
static audio_block_t *block_right_1st;

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