Try to fix some weird null registry

Makefile: explicit rules to generale static and dynamic libraries

.gitignore

@@ -0,0 +1,3 @@
+*.o
+*.a
+*.gch

app/Makefile

@@ -1,7 +1,7 @@
 all: testrpitx 
 
-CFLAGS	= -Wall -g -O3 -Wno-unused-variable 
-LDFLAGS	= -lm -lrt -lpthread 
+CFLAGS	= -Wall -g -O3 -Wno-unused-variable -I /opt/vc/include 
+LDFLAGS	= -lm -lrt -lpthread -L/opt/vc/lib -lbcm_host
 CCP = g++ 
 CC = gcc 
 

app/testrpitx.cpp

@@ -283,9 +283,9 @@ void SimpleTestAm(uint64_t Freq)
 void SimpleTestOOK(uint64_t Freq)
 {
 
-	int SR = 1000;
+	int SR = 10; //10 HZ
 	int FifoSize = 21; //24
-	ookburst ook(Freq, SR, 14, FifoSize);
+	ookburst ook(Freq, SR, 14, FifoSize,100);
 
 	unsigned char TabSymbol[FifoSize] = {0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0};
 
@@ -701,6 +701,54 @@ void SimpleTestAtv(uint64_t Freq)
 	}
 }
 
+void info(uint64_t Freq)
+{
+	generalgpio genpio;
+	fprintf(stderr, "GPIOPULL =%x\n", genpio.gpioreg[GPPUDCLK0]);
+
+#define PULL_OFF 0
+#define PULL_DOWN 1
+#define PULL_UP 2
+	/*genpio.gpioreg[GPPUD] = 0; //PULL_DOWN;
+	usleep(150);
+	genpio.gpioreg[GPPUDCLK0] = (1 << 4); //GPIO CLK is GPIO 4
+	usleep(150);
+	genpio.gpioreg[GPPUDCLK0] = (0); //GPIO CLK is GPIO 4
+	*/
+	//genpio.setpulloff(4);
+
+	padgpio pad;
+	pad.setlevel(7);
+
+	clkgpio clk;
+	clk.print_clock_tree();
+	/* // THis fractional works on pi4
+	clk.SetPllNumber(clk_plld, 2);
+	clk.enableclk(4);
+	*/
+	clk.SetPllNumber(clk_pllc, 2);
+	clk.SetAdvancedPllMode(true);
+	clk.enableclk(4);
+	//clk.SetAdvancedPllMode(true);
+	//clk.SetPLLMasterLoop(0,4,0);
+	//clk.Setppm(+7.7);
+	clk.SetCenterFrequency(Freq, 1000);
+	clk.SetFrequency(0);
+	double freqresolution = clk.GetFrequencyResolution();
+	double RealFreq = clk.GetRealFrequency(0);
+	fprintf(stderr, "Frequency resolution=%f Error freq=%f\n", freqresolution, RealFreq);
+	int Deviation = 0;
+	
+	for(int i=0;i<1000;i++)
+	{
+		clk.SetFrequency(i*100);
+		usleep(10000);
+	}
+	sleep(10);
+	clk.disableclk(4);
+
+}
+
 static void
 terminate(int num)
 {
@@ -723,7 +771,7 @@ int main(int argc, char *argv[])
 		sa.sa_handler = terminate;
 		sigaction(i, &sa, NULL);
 	}
-	dbg_setlevel(0);
+	dbg_setlevel(1);
 	//SimpleTest(Freq);
 	//SimpleTestbpsk(Freq);
 	//SimpleTestFileIQ(Freq);
@@ -734,5 +782,8 @@ int main(int argc, char *argv[])
 	//SimpleTestOOKTiming(Freq);
 	//AlectoOOK(Freq);
 	//RfSwitchOOK(Freq);
-	SimpleTestAtv(Freq);
+	//SimpleTestbpsk(Freq);
+
+	//SimpleTestAtv(Freq);
+	info(Freq);
 }

src/Makefile

@@ -1,16 +1,36 @@
-CFLAGS = -Wall -O3 -Wno-unused-variable
-CXXFLAGS = -std=c++11 -Wall -O3 -Wno-unused-variable
-LDFLAGS = -lm -lrt -lpthread
-CCP = c++
-CC = cc
+CFLAGS ?= -Wall -O3 -Wno-unused-variable
+CFLAGS += -std=c++11 -fPIC
+CXXFLAGS ?= -std=c++11 -Wall -O3 -Wno-unused-variable -I /opt/vc/include 
+CXXFLAGS += -std=c++11 -Wall -O3 -Wno-unused-variable -fPIC
+LDFLAGS ?= -lm -lrt -lpthread -L/opt/vc/lib -lbcm_host
+LDFLAGS += -fPIC
+CXX ?= c++
+CC ?= cc
+PREFIX ?= /usr/local/
+SRCCC=$(wildcard *.c)
+SRCXX=$(wildcard *.cpp)
+OBJS=$(SRCCC:.c=.o)
+OBJS+=$(SRCXX:.cpp=.o)
 
-librpitx: librpitx.h gpio.h gpio.cpp dma.h dma.cpp mailbox.c raspberry_pi_revision.c fmdmasync.h fmdmasync.cpp ngfmdmasync.h ngfmdmasync.cpp dsp.h dsp.cpp iqdmasync.h iqdmasync.cpp serialdmasync.h serialdmasync.cpp phasedmasync.h phasedmasync.cpp fskburst.h fskburst.cpp ookburst.cpp ookburst.h atv.h atv.cpp util.h
-	#$(CC) $(CFLAGS) -c -o mailbox.o mailbox.c
-	$(CC) $(CFLAGS) -c -o raspberry_pi_revision.o raspberry_pi_revision.c
-	$(CCP) $(CXXFLAGS) -c dsp.cpp iqdmasync.cpp ngfmdmasync.cpp fmdmasync.cpp  dma.cpp gpio.cpp serialdmasync.cpp phasedmasync.cpp amdmasync.h amdmasync.cpp fskburst.cpp ookburst.cpp atv.cpp util.cpp mailbox.c
-	$(AR) rc librpitx.a dsp.o iqdmasync.o ngfmdmasync.o fmdmasync.o  dma.o gpio.o mailbox.o raspberry_pi_revision.o  serialdmasync.o phasedmasync.o amdmasync.o fskburst.o ookburst.o atv.o util.o mailbox.o
+all: librpitx.a librpitx.so
 
-install: librpitx
+%.o: %.c
+	$(CXX) $(CFLAGS) -c $^
+
+%.o: %.cpp
+	$(CXX) $(CXXFLAGS) -c $^
+
+librpitx.a: $(OBJS)
+	$(AR) rc $@ $^
+
+librpitx.so: $(OBJS)
+	$(CXX) -fPIC -shared -o $@ $^ $(LDFLAGS) 
+
+install: librpitx.a
+	mkdir -p $(PREFIX)/include/librpitx
+	install *.h $(PREFIX)/include/librpitx
+	mkdir -p $(PREFIX)/lib
+	install librpitx.a $(PREFIX)/lib
 
 clean:
-	rm -f *.o *.a
+	rm -f $(OBJS) *.a *.so

src/atv.cpp

@@ -158,7 +158,7 @@ void atv::SetDmaAlgo()
     }
     cbp--;
     cbp->next = mem_virt_to_phys(cbarray); // We loop to the first CB
-    dbg_printf(1, "Last cbp :  %d \n", ((unsigned int)(cbp) - (unsigned int)(cbarray)) / sizeof(dma_cb_t));
+    dbg_printf(1, "Last cbp :  %d \n", ((uintptr_t)(cbp) - (uintptr_t)(cbarray)) / sizeof(dma_cb_t));
 }
 
 void atv::SetFrame(unsigned char *Luminance, size_t Lines)

src/dma.cpp

@@ -19,6 +19,7 @@ This program is free software: you can redistribute it and/or modify
 #include "dma.h"
 #include "stdio.h"
 #include "util.h"
+#include "rpi.h"
 
 extern "C"
 {
@@ -32,9 +33,24 @@ extern "C"
 
 dma::dma(int Channel,uint32_t CBSize,uint32_t UserMemSize) // Fixme! Need to check to be 256 Aligned for UserMem
 { 
-	dbg_printf(1,"Channel %d CBSize %u UsermemSize %u\n",Channel,CBSize,UserMemSize);
+	
+	//Channel DMA is now hardcoded according to Raspi Model (DMA 7 for Pi4, DMA 14 for others)
+	uint32_t BCM2708_PERI_BASE =bcm_host_get_peripheral_address();
 	
 	channel=Channel;
+	if(BCM2708_PERI_BASE==0xFE000000)
+	{
+		channel= 7; // Pi4
+		dbg_printf(1,"dma PI4 using channel %d\n",channel);
+	}
+	else
+	{
+		channel = 14; // Other Pi
+		dbg_printf(1,"dma (NOT a PI4)  using channel %d\n",channel);
+	}
+	
+	dbg_printf(1,"channel %d CBSize %u UsermemSize %u\n",channel,CBSize,UserMemSize);
+	
     mbox.handle = mbox_open();
 	if (mbox.handle < 0)
 	{
@@ -45,6 +61,7 @@ dma::dma(int Channel,uint32_t CBSize,uint32_t UserMemSize) // Fixme! Need to che
 	usermemsize=UserMemSize;
 
 	GetRpiInfo(); // Fill mem_flag and dram_phys_base
+
     uint32_t MemoryRequired=CBSize*sizeof(dma_cb_t)+UserMemSize*sizeof(uint32_t);
     int NumPages=(MemoryRequired/PAGE_SIZE)+1;
     dbg_printf(1,"%d Size NUM PAGES %d PAGE_SIZE %d\n",MemoryRequired,NumPages,PAGE_SIZE);
@@ -71,27 +88,16 @@ dma::dma(int Channel,uint32_t CBSize,uint32_t UserMemSize) // Fixme! Need to che
 
 void dma::GetRpiInfo()
 {
-	RASPBERRY_PI_INFO_T info;
-	if (getRaspberryPiInformation(&info) > 0)
-	{
-		if(info.peripheralBase==RPI_BROADCOM_2835_PERIPHERAL_BASE)
-		{
+	dram_phys_base= bcm_host_get_sdram_address();
 
-			 dram_phys_base   =  0x40000000;
-			 mem_flag         =  MEM_FLAG_L1_NONALLOCATING|MEM_FLAG_HINT_PERMALOCK|MEM_FLAG_NO_INIT;//0x0c;
+	mem_flag =  MEM_FLAG_HINT_PERMALOCK|MEM_FLAG_NO_INIT;//0x0c;
+	switch(dram_phys_base)
+	{
+		case 0x40000000 : mem_flag |=MEM_FLAG_L1_NONALLOCATING;break;
+		case 0xC0000000 : mem_flag |=MEM_FLAG_DIRECT;break;
+		default: dbg_printf(0,"Unknown Raspberry architecture\n");
 	}
 	
-		if((info.peripheralBase==RPI_BROADCOM_2836_PERIPHERAL_BASE)||(info.peripheralBase==RPI_BROADCOM_2837_PERIPHERAL_BASE))
-		{
-			
-			 dram_phys_base   =  0xc0000000;
-			 mem_flag         =  MEM_FLAG_DIRECT|MEM_FLAG_HINT_PERMALOCK|MEM_FLAG_NO_INIT;// 0x04;
-		}
-	}
-	else
-	{
-		dbg_printf(1,"Unknown Raspberry architecture\n");
-	}
 }
 
 dma::~dma()

src/fskburst.cpp

@@ -20,108 +20,124 @@ This program is free software: you can redistribute it and/or modify
 #include "util.h"
 #include <unistd.h>
 
-	fskburst::fskburst(uint64_t TuneFrequency,uint32_t SymbolRate,float Deviation,int Channel,uint32_t FifoSize):bufferdma(Channel,FifoSize+3,2,1),freqdeviation(Deviation)
-	{
+fskburst::fskburst(uint64_t TuneFrequency, float SymbolRate, float Deviation, int Channel, uint32_t FifoSize, size_t upsample,float RatioRamp) : bufferdma(Channel, FifoSize * upsample + 3, 2, 1), freqdeviation(Deviation), SR_upsample(upsample)
+{
 
 	clkgpio::SetAdvancedPllMode(true);
-		clkgpio::SetCenterFrequency(TuneFrequency,SymbolRate); // Write Mult Int and Frac : FixMe carrier is already there
+	clkgpio::SetCenterFrequency(TuneFrequency, Deviation*10); // Write Mult Int and Frac : FixMe carrier is already there
 	clkgpio::SetFrequency(0);
 	disableclk(4);
-		syncwithpwm=false;
+	syncwithpwm = false;
+	Ramp = SR_upsample * RatioRamp; //Ramp time = 10%
 
-		if(syncwithpwm)
+	if (syncwithpwm)
 	{
-			pwmgpio::SetPllNumber(clk_plld,1);
-			pwmgpio::SetFrequency(SymbolRate);
+		pwmgpio::SetPllNumber(clk_plld, 1);
+		pwmgpio::SetFrequency(SymbolRate * (float)SR_upsample);
 	}
 	else
 	{
-			pcmgpio::SetPllNumber(clk_plld,1);
-			pcmgpio::SetFrequency(SymbolRate);
+		pcmgpio::SetPllNumber(clk_plld, 1);
+		pcmgpio::SetFrequency(SymbolRate * (float)SR_upsample);
 	}
 
 	//Should be obligatory place before setdmaalgo
-		Originfsel=clkgpio::gengpio.gpioreg[GPFSEL0];
-		dbg_printf(1,"FSK Origin fsel %x\n",Originfsel);
+	Originfsel = clkgpio::gengpio.gpioreg[GPFSEL0];
+	dbg_printf(1, "FSK Origin fsel %x\n", Originfsel);
 
 	SetDmaAlgo();
+}
 
+fskburst::~fskburst()
+{
+}
 
-		
-	}
-
-	fskburst::~fskburst()
-	{
-	}
-
-	void fskburst::SetDmaAlgo()
+void fskburst::SetDmaAlgo()
 {
 
-			sampletab[buffersize*registerbysample-2]=(Originfsel & ~(7 << 12)) | (4 << 12); //Gpio  Clk
-			sampletab[buffersize*registerbysample-1]=(Originfsel & ~(7 << 12)) | (0 << 12); //Gpio  In
+	sampletab[buffersize * registerbysample - 2] = (Originfsel & ~(7 << 12)) | (4 << 12); //Gpio  Clk
+	sampletab[buffersize * registerbysample - 1] = (Originfsel & ~(7 << 12)) | (0 << 12); //Gpio  In
 
 	dma_cb_t *cbp = cbarray;
 	// We must fill the FIFO (PWM or PCM) to be Synchronized from start
 	// PWM FIFO = 16
 	// PCM FIFO = 64
-			if(syncwithpwm)
+	if (syncwithpwm)
 	{
-				SetEasyCB(cbp++,0,dma_pwm,16+1);
+		SetEasyCB(cbp++, 0, dma_pwm, 16 + 1);
 	}
 	else
 	{
-				SetEasyCB(cbp++,0,dma_pcm,64+1);
-				
+		SetEasyCB(cbp++, 0, dma_pcm, 64 + 1);
 	}
 
-			SetEasyCB(cbp++,buffersize*registerbysample-2,dma_fsel,1);//Enable clk
+	SetEasyCB(cbp++, buffersize * registerbysample - 2, dma_fsel, 1); //Enable clk
 
-			
-			for (uint32_t samplecnt = 0; samplecnt < buffersize-2; samplecnt++) 
+	for (uint32_t samplecnt = 0; samplecnt < buffersize - 2; samplecnt++)
 	{
 
-
 		// Write a frequency sample
-				SetEasyCB(cbp++,samplecnt*registerbysample,dma_pllc_frac,1);//FReq
+		SetEasyCB(cbp++, samplecnt * registerbysample, dma_pllc_frac, 1); //FReq
 
 		// Delay
-				SetEasyCB(cbp++,samplecnt*registerbysample,syncwithpwm?dma_pwm:dma_pcm,1);
-			
+		SetEasyCB(cbp++, samplecnt * registerbysample, syncwithpwm ? dma_pwm : dma_pcm, 1);
 	}
-			lastcbp=cbp;
+	lastcbp = cbp;
 
-			SetEasyCB(cbp,buffersize*registerbysample-1,dma_fsel,1);//Disable clk
+	SetEasyCB(cbp, buffersize * registerbysample - 1, dma_fsel, 1); //Disable clk
 
 	cbp->next = 0; // Stop DMA
 
-		dbg_printf(2,"Last cbp :  src %x dest %x next %x\n",cbp->src,cbp->dst,cbp->next);
+	dbg_printf(2, "Last cbp :  src %x dest %x next %x\n", cbp->src, cbp->dst, cbp->next);
 }
-	void fskburst::SetSymbols(unsigned char *Symbols,uint32_t Size)
+void fskburst::SetSymbols(unsigned char *Symbols, uint32_t Size)
+{
+	if (Size > buffersize - 3)
 	{
-		if(Size>buffersize-3) {dbg_printf(1,"Buffer overflow\n");return;}
+		dbg_printf(1, "Buffer overflow\n");
+		return;
+	}
 
-		dma_cb_t *cbp=cbarray;
-		cbp+=2; // Skip the first 2 CB (initialisation)
-		for(unsigned int i=0;i<Size;i++)
+	dma_cb_t *cbp = cbarray;
+	cbp += 2; // Skip the first 2 CB (initialisation)
+
+	
+
+	for (unsigned int i = 0; i < Size; i++)
 	{
-			sampletab[i]=(0x5A<<24)|GetMasterFrac(freqdeviation*Symbols[i]);
-			cbp++;//SKIP FREQ CB
+		for (size_t j = 0; j < SR_upsample - Ramp; j++)
+		{
+			sampletab[i * SR_upsample + j] = (0x5A << 24) | GetMasterFrac(freqdeviation * Symbols[i]);
+			cbp++; //SKIP FREQ CB
 			cbp->next = mem_virt_to_phys(cbp + 1);
 			cbp++;
 		}
+		for (size_t j = 0 ; j < Ramp; j++)
+		{
+			if (i < Size - 1)
+			{
+				sampletab[i * SR_upsample + j + SR_upsample - Ramp] = (0x5A << 24) | GetMasterFrac(freqdeviation * Symbols[i] + j* (freqdeviation * Symbols[i + 1] - freqdeviation * Symbols[i]) / (float)Ramp);
+				dbg_printf(2, "Ramp %f ->%f : %d %f\n",freqdeviation * Symbols[i],freqdeviation * Symbols[i+1], j,freqdeviation * Symbols[i] + j* (freqdeviation * Symbols[i + 1] - freqdeviation * Symbols[i]) / (float)Ramp);							
+			}
+			else
+			{
+				sampletab[i * SR_upsample + j + SR_upsample -Ramp] = (0x5A << 24) | GetMasterFrac(freqdeviation * Symbols[i]);
+			}
+			
+			cbp++; //SKIP FREQ CB
+			cbp->next = mem_virt_to_phys(cbp + 1);
+			cbp++;
+		}
+	}
 	cbp--;
 	cbp->next = mem_virt_to_phys(lastcbp);
 
-		
 	dma::start();
-		while(isrunning()) //Block function : return until sent completely signal
+	while (isrunning()) //Block function : return until sent completely signal
 	{
 		//dbg_printf(1,"GPIO %x\n",clkgpio::gengpio.gpioreg[GPFSEL0]);
 		usleep(100);
-			
 	}
-		dbg_printf(1,"FSK burst end Tx\n",cbp->src,cbp->dst,cbp->next);
-		usleep(100);//To be sure last symbol Tx ?
-				
-	}
-
+	dbg_printf(1, "FSK burst end Tx\n", cbp->src, cbp->dst, cbp->next);
+	usleep(100); //To be sure last symbol Tx ?
+}

src/fskburst.h

@@ -12,8 +12,10 @@ class fskburst:public bufferdma,public clkgpio,public pwmgpio,public pcmgpio
 	uint32_t Originfsel;
 	bool syncwithpwm;
 	dma_cb_t *lastcbp;
+	size_t SR_upsample=0;
+	size_t Ramp=0;
 	public:
-	fskburst(uint64_t TuneFrequency,uint32_t SymbolRate,float Deviation,int Channel,uint32_t FifoSize);
+	fskburst(uint64_t TuneFrequency,float SymbolRate,float Deviation,int Channel,uint32_t FifoSize,size_t upsample=1,float RatioRamp=0);
 	~fskburst();
 	void SetDmaAlgo();
 	

src/gpio.cpp

@@ -24,12 +24,15 @@ extern "C" {
 #include <unistd.h>
 #include <sys/timex.h>
 #include <math.h>
+#include <string.h>
 #include "util.h"
+#include "rpi.h"
 
 gpio::gpio(uint32_t base, uint32_t len)
 {
 
-	gpioreg = (uint32_t *)mapmem(base, len);
+	
+	gpioreg = (uint32_t *)mapmem(GetPeripheralBase()+base, len);
 	gpiolen=len;	
 }
 
@@ -39,33 +42,85 @@ gpio::~gpio()
 		unmapmem((void*)gpioreg,gpiolen);
 	
 }
+
+uint32_t get_hwbase(void)
+{
+    const char *ranges_file = "/proc/device-tree/soc/ranges";
+    uint8_t ranges[12];
+    FILE *fd;
+    uint32_t ret = 0;
+
+    memset(ranges, 0, sizeof(ranges));
+
+    if ((fd = fopen(ranges_file, "rb")) == NULL)
+    {
+        printf("Can't open '%s'\n", ranges_file);
+    }
+    else if (fread(ranges, 1, sizeof(ranges), fd) >= 8)
+    {
+        ret = (ranges[4] << 24) |
+              (ranges[5] << 16) |
+              (ranges[6] << 8) |
+              (ranges[7] << 0);
+        if (!ret)
+            ret = (ranges[8] << 24) |
+                  (ranges[9] << 16) |
+                  (ranges[10] << 8) |
+                  (ranges[11] << 0);
+        if ((ranges[0] != 0x7e) ||
+                (ranges[1] != 0x00) ||
+                (ranges[2] != 0x00) ||
+                (ranges[3] != 0x00) ||
+                ((ret != 0x20000000) && (ret != 0x3f000000) && (ret != 0xfe000000)))
+        {
+            printf("Unexpected ranges data (%02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x)\n",
+                   ranges[0], ranges[1], ranges[2], ranges[3],
+                   ranges[4], ranges[5], ranges[6], ranges[7],
+                   ranges[8], ranges[9], ranges[10], ranges[11]);
+            ret = 0;
+        }
+    }
+    else
+    {
+	printf("Ranges data too short\n");
+    }
+
+    fclose(fd);
+
+    return ret;
+}
+
 uint32_t gpio::GetPeripheralBase()
 {
 	RASPBERRY_PI_INFO_T info;
-	uint32_t BCM2708_PERI_BASE = 0;
-	if (getRaspberryPiInformation(&info) > 0)
+	uint32_t BCM2708_PERI_BASE =bcm_host_get_peripheral_address();
+	dbg_printf(0,"Peri Base = %x SDRAM %x\n",/*get_hwbase()*/bcm_host_get_peripheral_address(),bcm_host_get_sdram_address());
+	if(BCM2708_PERI_BASE==0xFE000000) // Fixme , could be inspect without this hardcoded value
 	{
-		if (info.peripheralBase == RPI_BROADCOM_2835_PERIPHERAL_BASE)
+               dbg_printf(0,"RPi4 GPIO detected\n");
+		pi_is_2711=true;  //Rpi4
+		XOSC_FREQUENCY=54000000;
+	}
+	if(BCM2708_PERI_BASE==0)
 	{
-			BCM2708_PERI_BASE = info.peripheralBase;
-		}
-
-		if ((info.peripheralBase == RPI_BROADCOM_2836_PERIPHERAL_BASE) || (info.peripheralBase == RPI_BROADCOM_2837_PERIPHERAL_BASE))
-		{
-			BCM2708_PERI_BASE = info.peripheralBase;
-		}
+		dbg_printf(0,"Unknown peripheral base, switch to PI4 \n");
+		BCM2708_PERI_BASE=0xfe000000;
+		XOSC_FREQUENCY=54000000;
+		pi_is_2711=true;  
 	}
+	if(pi_is_2711)
+		dbg_printf(1,"Running on Pi4\n");
 	return BCM2708_PERI_BASE;
 }
 
 //******************** DMA Registers ***************************************
 
-dmagpio::dmagpio() : gpio(GetPeripheralBase() + DMA_BASE, DMA_LEN)
+dmagpio::dmagpio() : gpio( DMA_BASE, DMA_LEN)
 {
 }
 
 // ***************** CLK Registers *****************************************
-clkgpio::clkgpio() : gpio(GetPeripheralBase() + CLK_BASE, CLK_LEN)
+clkgpio::clkgpio() : gpio(CLK_BASE, CLK_LEN)
 {
 	SetppmFromNTP();
 	padgpio level;
@@ -81,7 +136,7 @@ clkgpio::~clkgpio()
 
 int clkgpio::SetPllNumber(int PllNo, int MashType)
 {
-	//print_clock_tree();
+	print_clock_tree();
 	if (PllNo < 8)
 		pllnumber = PllNo;
 	else
@@ -109,21 +164,26 @@ uint64_t clkgpio::GetPllFrequency(int PllNo)
 		Freq = XOSC_FREQUENCY;
 		break;
 	case clk_plla:
-		Freq = XOSC_FREQUENCY * ((uint64_t)gpioreg[PLLA_CTRL] & 0x3ff) + XOSC_FREQUENCY * (uint64_t)gpioreg[PLLA_FRAC] / (1 << 20);
+		Freq =  (XOSC_FREQUENCY * ((uint64_t)gpioreg[PLLA_CTRL] & 0x3ff) + XOSC_FREQUENCY * (uint64_t)gpioreg[PLLA_FRAC] / (1 << 20))/(2*(gpioreg[PLLA_CTRL] >> 12)&0x7);
 		break;
 	//case clk_pllb:Freq=XOSC_FREQUENCY*((uint64_t)gpioreg[PLLB_CTRL]&0x3ff) +XOSC_FREQUENCY*(uint64_t)gpioreg[PLLB_FRAC]/(1<<20);break;
 	case clk_pllc:
-		Freq = XOSC_FREQUENCY * ((uint64_t)gpioreg[PLLC_CTRL] & 0x3ff) + XOSC_FREQUENCY * (uint64_t)gpioreg[PLLC_FRAC] / (1 << 20);
+		//Freq = (XOSC_FREQUENCY * ((uint64_t)gpioreg[PLLC_CTRL] & 0x3ff) + (XOSC_FREQUENCY * (uint64_t)gpioreg[PLLC_FRAC]) / (1 << 20)) / (2*gpioreg[PLLC_PER] >> 1)) /((gpioreg[PLLC_CTRL] >> 12)&0x7) ;
+		//dbg_printf(1, "Gpio reg %x %x\n",gpioreg[PLLC_PER],gpioreg[PLLC_CTRL] >> 12);
+		if((gpioreg[PLLC_PER]!=0)&&(gpioreg[PLLC_CTRL] >> 12 != 0)) 
+			Freq =( (XOSC_FREQUENCY * ((uint64_t)gpioreg[PLLC_CTRL] & 0x3ff) + (XOSC_FREQUENCY * (uint64_t)gpioreg[PLLC_FRAC]) / (1 << 20)) / (2*gpioreg[PLLC_PER] >> 1))/((gpioreg[PLLC_CTRL] >> 12)&0x7) ;
 		break;
 	case clk_plld:
-		Freq = (XOSC_FREQUENCY * ((uint64_t)gpioreg[PLLD_CTRL] & 0x3ff) + (XOSC_FREQUENCY * (uint64_t)gpioreg[PLLD_FRAC]) / (1 << 20)) / (gpioreg[PLLD_PER] >> 1);
+		Freq =( (XOSC_FREQUENCY * ((uint64_t)gpioreg[PLLD_CTRL] & 0x3ff) + (XOSC_FREQUENCY * (uint64_t)gpioreg[PLLD_FRAC]) / (1 << 20)) / (2*gpioreg[PLLD_PER] >> 1))/((gpioreg[PLLD_CTRL] >> 12)&0x7) ;
 		break;
 	case clk_hdmi:
-		Freq = XOSC_FREQUENCY * ((uint64_t)gpioreg[PLLH_CTRL] & 0x3ff) + XOSC_FREQUENCY * (uint64_t)gpioreg[PLLH_FRAC] / (1 << 20);
+		Freq =( XOSC_FREQUENCY * ((uint64_t)gpioreg[PLLH_CTRL] & 0x3ff) + XOSC_FREQUENCY * (uint64_t)gpioreg[PLLH_FRAC] / (1 << 20))/(2*(gpioreg[PLLH_CTRL] >> 12)&0x7) ;
 		break;
 	}
+	if(!pi_is_2711) // FixMe : Surely a register which say it is a 2x
+		Freq*=2LL;
 	Freq=Freq*(1.0-clk_ppm*1e-6);
-	dbg_printf(1, "Freq PLL no %d= %llu\n",PllNo, Freq);
+	dbg_printf(1, "Pi4=%d Xosc = %llu Freq PLL no %d= %llu\n",pi_is_2711,XOSC_FREQUENCY,PllNo, Freq);
 
 	return Freq;
 }
@@ -157,9 +217,26 @@ int clkgpio::SetFrequency(double Frequency)
 
 		double FloatMult=0;
 		if(PllFixDivider==1) //Using PDIV thus frequency/2
-		 	FloatMult = ((double)(CentralFrequency + Frequency) ) / ((double)(XOSC_FREQUENCY*2) * (1 - clk_ppm * 1e-6));
+		{
+			if(pi_is_2711)
+		 		FloatMult = ((double)(CentralFrequency + Frequency)*2 ) / ((double)(XOSC_FREQUENCY) * (1 - clk_ppm * 1e-6));
 			 else
+			 {
+				FloatMult = ((double)(CentralFrequency + Frequency) ) / ((double)(XOSC_FREQUENCY*2) * (1 - clk_ppm * 1e-6));
+			 }
+			 
+		}	 
+		else
+		{
+			if(pi_is_2711)
+		 		FloatMult = ((double)(CentralFrequency + Frequency)*PllFixDivider*2 ) / ((double)(XOSC_FREQUENCY) * (1 - clk_ppm * 1e-6)); 
+			else
+			{
 				FloatMult = ((double)(CentralFrequency + Frequency)*PllFixDivider ) / ((double)(XOSC_FREQUENCY) * (1 - clk_ppm * 1e-6)); 
+			}
+				 
+		}
+
 		uint32_t freqctl = FloatMult * ((double)(1 << 20));
 		int IntMultiply = freqctl >> 20; // Need to be calculated to have a center frequency
 		freqctl &= 0xFFFFF;				 // Fractionnal is 20bits
@@ -187,10 +264,26 @@ uint32_t clkgpio::GetMasterFrac(double Frequency)
 	if (ModulateFromMasterPLL)
 	{
 		double FloatMult=0;
-		if(PllFixDivider==1) //Using PDIV thus frequency/2
-		 	FloatMult = ((double)(CentralFrequency + Frequency) ) / ((double)(XOSC_FREQUENCY*2) * (1 - clk_ppm * 1e-6));
+		if((PllFixDivider==1))//There is no Prediv on Pi4 //Using PDIV thus frequency/2
+		{
+			if(pi_is_2711) // No PDIV on pi4
+		 		FloatMult = ((double)(CentralFrequency + Frequency)*2 ) / ((double)(XOSC_FREQUENCY) * (1 - clk_ppm * 1e-6));
 			else
+			{
+				FloatMult = ((double)(CentralFrequency + Frequency) ) / ((double)(XOSC_FREQUENCY*2) * (1 - clk_ppm * 1e-6));
+			}
+				 
+		}	 
+		else
+		{
+			if(pi_is_2711)
+		 		FloatMult = ((double)(CentralFrequency + Frequency)*PllFixDivider*2 ) / ((double)(XOSC_FREQUENCY) * (1 - clk_ppm * 1e-6)); 
+			else
+			{
 				FloatMult = ((double)(CentralFrequency + Frequency)*PllFixDivider ) / ((double)(XOSC_FREQUENCY) * (1 - clk_ppm * 1e-6)); 
+			}
+				 
+		}	 
 		uint32_t freqctl = FloatMult * ((double)(1 << 20));
 		int IntMultiply = freqctl >> 20; // Need to be calculated to have a center frequency
 		freqctl &= 0xFFFFF;				 // Fractionnal is 20bits
@@ -212,7 +305,8 @@ int clkgpio::ComputeBestLO(uint64_t Frequency, int Bandwidth)
 	#define MIN_PLL_RATE 200e6
 	#define MIN_PLL_RATE_USE_PDIV 1500e6 //1700 works but some ticky breaks in clock..PLL should be at limit
 	#define MAX_PLL_RATE 4e9
-	#define XTAL_RATE 19.2e6
+	#define XTAL_RATE XOSC_FREQUENCY
+	//Pi4 seems 54Mhz
 	double xtal_freq_recip = 1.0 / XTAL_RATE; // todo PPM correction
 	int best_divider = 0;
 
@@ -222,6 +316,8 @@ int clkgpio::ComputeBestLO(uint64_t Frequency, int Bandwidth)
 	double Multiplier=0.0;
 	best_divider = 0;
 	bool cross_boundary=false;
+
+	
 	if(Frequency<MIN_PLL_RATE/4095)
 	{
 		dbg_printf(1, "Frequency too low !!!!!!\n"); 
@@ -268,6 +364,7 @@ int clkgpio::ComputeBestLO(uint64_t Frequency, int Bandwidth)
 	if (best_divider!=0)
 	{
 		PllFixDivider = best_divider;
+		
 		if(cross_boundary) dbg_printf(1,"Warning : cross boundary frequency\n");
 		dbg_printf(1, "Found PLL solution for frequency %4.1fMHz : divider:%d VCO: %4.1fMHz\n", (Frequency/1e6), PllFixDivider,(Frequency/1e6) *((PllFixDivider==1)?2.0:(double)PllFixDivider));
 		return 0;
@@ -312,15 +409,24 @@ int clkgpio::SetCenterFrequency(uint64_t Frequency, int Bandwidth)
 	if (ModulateFromMasterPLL)
 	{
 		//Choose best PLLDiv and Div
-		ComputeBestLO(Frequency, Bandwidth); //FixeDivider update
 		
 		
+		if(pi_is_2711)
+		{
+			ComputeBestLO(Frequency*2, Bandwidth); //FixeDivider update
+			//PllFixDivider=PllFixDivider/2;
+		}
+		else
+		{
+			ComputeBestLO(Frequency, Bandwidth); //FixeDivider update
+		}
+		
 		
 		if(PllFixDivider==1)
 		{
 			//We will use PDIV by 2, means like we have a 2 times more	
 			SetClkDivFrac(2, 0x0); // NO MASH !!!!
-			
+			dbg_printf(1, "Pll Fix Divider\n");
 			
 		}
 		else
@@ -346,7 +452,7 @@ int clkgpio::SetCenterFrequency(uint64_t Frequency, int Bandwidth)
 		}
 		else	
 		{
-		    ana[1]|=(0<<14); // No use prediv means Frequency
+		    ana[1]|=(0<<14); // No use prediv means Frequenc
 		}
 		/*
 	 * ANA register setup is done as a series of writes to
@@ -402,6 +508,7 @@ void clkgpio::SetPhase(bool inversed)
 	clkgpio::gpioreg[GPCLK_CNTL] = (0x5A << 24) | StateBefore | ((inversed ? 1 : 0) << 8) | 0 << 5;
 	//clkgpio::gpioreg[GPCLK_CNTL_2] = (0x5A << 24) | StateBefore | ((inversed ? 1 : 0) << 8) | 0 << 5;
 }
+//https://elinux.org/The_Undocumented_Pi
 //Should inspect https://github.com/raspberrypi/linux/blob/ffd7bf4085b09447e5db96edd74e524f118ca3fe/drivers/clk/bcm/clk-bcm2835.c#L695
 void clkgpio::SetAdvancedPllMode(bool Advanced)
 {
@@ -432,7 +539,14 @@ void clkgpio::SetAdvancedPllMode(bool Advanced)
 
 		
 		gpioreg[PLLC_CORE0] = 0x5A000000|(1<<8);//Disable 
-		gpioreg[PLLC_PER] = 0x5A000001; // Divisor
+		if(pi_is_2711)
+			gpioreg[PLLC_PER] = 0x5A000002; // Divisor by 2 (1 seems not working on pi4)
+		else
+		{
+			gpioreg[PLLC_PER] = 0x5A000001; // Divisor 1 for max frequence
+		}
+			
+
 		usleep(100);
 	}
 }
@@ -535,24 +649,25 @@ void clkgpio::print_clock_tree(void)
 
 	// Sometimes calculated frequencies are off by a factor of 2
 	// ANA1 bit 14 may indicate that a /2 prescaler is active
+	double xoscmhz=XOSC_FREQUENCY/1e6;
 	printf("PLLA PDIV=%d NDIV=%d FRAC=%d  ", (gpioreg[PLLA_CTRL] >> 12)&0x7, gpioreg[PLLA_CTRL] & 0x3ff, gpioreg[PLLA_FRAC]);
-	printf(" %f MHz\n", 19.2 * ((float)(gpioreg[PLLA_CTRL] & 0x3ff) + ((float)gpioreg[PLLA_FRAC]) / ((float)(1 << 20))));
+	printf(" %f MHz\n", xoscmhz * ((float)(gpioreg[PLLA_CTRL] & 0x3ff) + ((float)gpioreg[PLLA_FRAC]) / ((float)(1 << 20))));
 	printf("DSI0=%d CORE=%d PER=%d CCP2=%d\n\n", gpioreg[PLLA_DSI0], gpioreg[PLLA_CORE], gpioreg[PLLA_PER], gpioreg[PLLA_CCP2]);
 
 	printf("PLLB PDIV=%d NDIV=%d FRAC=%d  ", (gpioreg[PLLB_CTRL] >> 12)&0x7, gpioreg[PLLB_CTRL] & 0x3ff, gpioreg[PLLB_FRAC]);
-	printf(" %f MHz\n", 19.2 * ((float)(gpioreg[PLLB_CTRL] & 0x3ff) + ((float)gpioreg[PLLB_FRAC]) / ((float)(1 << 20))));
+	printf(" %f MHz\n", xoscmhz * ((float)(gpioreg[PLLB_CTRL] & 0x3ff) + ((float)gpioreg[PLLB_FRAC]) / ((float)(1 << 20))));
 	printf("ARM=%d SP0=%d SP1=%d SP2=%d\n\n", gpioreg[PLLB_ARM], gpioreg[PLLB_SP0], gpioreg[PLLB_SP1], gpioreg[PLLB_SP2]);
 
 	printf("PLLC PDIV=%d NDIV=%d FRAC=%d  ", (gpioreg[PLLC_CTRL] >> 12)&0x7, gpioreg[PLLC_CTRL] & 0x3ff, gpioreg[PLLC_FRAC]);
-	printf(" %f MHz\n", 19.2 * ((float)(gpioreg[PLLC_CTRL] & 0x3ff) + ((float)gpioreg[PLLC_FRAC]) / ((float)(1 << 20))));
+	printf(" %f MHz\n", xoscmhz * ((float)(gpioreg[PLLC_CTRL] & 0x3ff) + ((float)gpioreg[PLLC_FRAC]) / ((float)(1 << 20))));
 	printf("CORE2=%d CORE1=%d PER=%d CORE0=%d\n\n", gpioreg[PLLC_CORE2], gpioreg[PLLC_CORE1], gpioreg[PLLC_PER], gpioreg[PLLC_CORE0]);
 
 	printf("PLLD %x PDIV=%d NDIV=%d FRAC=%d  ", gpioreg[PLLD_CTRL], (gpioreg[PLLD_CTRL] >> 12)&0x7, gpioreg[PLLD_CTRL] & 0x3ff, gpioreg[PLLD_FRAC]);
-	printf(" %f MHz\n", 19.2 * ((float)(gpioreg[PLLD_CTRL] & 0x3ff) + ((float)gpioreg[PLLD_FRAC]) / ((float)(1 << 20))));
+	printf(" %f MHz\n", xoscmhz * ((float)(gpioreg[PLLD_CTRL] & 0x3ff) + ((float)gpioreg[PLLD_FRAC]) / ((float)(1 << 20))));
 	printf("DSI0=%d CORE=%d PER=%d DSI1=%d\n\n", gpioreg[PLLD_DSI0], gpioreg[PLLD_CORE], gpioreg[PLLD_PER], gpioreg[PLLD_DSI1]);
 
 	printf("PLLH PDIV=%d NDIV=%d FRAC=%d  ", (gpioreg[PLLH_CTRL] >> 12)&0x7, gpioreg[PLLH_CTRL] & 0x3ff, gpioreg[PLLH_FRAC]);
-	printf(" %f MHz\n", 19.2 * ((float)(gpioreg[PLLH_CTRL] & 0x3ff) + ((float)gpioreg[PLLH_FRAC]) / ((float)(1 << 20))));
+	printf(" %f MHz\n", xoscmhz * ((float)(gpioreg[PLLH_CTRL] & 0x3ff) + ((float)gpioreg[PLLH_FRAC]) / ((float)(1 << 20))));
 	printf("AUX=%d RCAL=%d PIX=%d STS=%d\n\n", gpioreg[PLLH_AUX], gpioreg[PLLH_RCAL], gpioreg[PLLH_PIX], gpioreg[PLLH_STS]);
 }
 
@@ -622,7 +737,7 @@ void clkgpio::SetppmFromNTP()
 
 // ************************************** GENERAL GPIO *****************************************************
 
-generalgpio::generalgpio() : gpio(GetPeripheralBase() + GENERAL_BASE, GENERAL_LEN)
+generalgpio::generalgpio() : gpio(/*GetPeripheralBase() + */GENERAL_BASE, GENERAL_LEN)
 {
 }
 
@@ -644,18 +759,32 @@ int generalgpio::setmode(uint32_t gpio, uint32_t mode)
 
 int generalgpio::setpulloff(uint32_t gpio)
 {
+	if(!pi_is_2711)
+	{
 		gpioreg[GPPUD]=0;
 		usleep(150);	
 		gpioreg[GPPUDCLK0]=1<<gpio;
 		usleep(150);	
 		gpioreg[GPPUDCLK0]=0;
+	}
+	else
+	{
+		uint32_t bits;
+		uint32_t pull=0; // 0 OFF, 1 = UP, 2= DOWN
+		int shift = (gpio & 0xf) << 1;
+		bits = gpioreg[GPPUPPDN0 + (gpio>>4)];
+		bits &= ~(3 << shift);
+        bits |= (pull << shift);
+      	gpioreg[GPPUPPDN0 + (gpio>>4)] = bits;
+	}
+	
 	return 0;
 }
 
 
 // ********************************** PWM GPIO **********************************
 
-pwmgpio::pwmgpio() : gpio(GetPeripheralBase() + PWM_BASE, PWM_LEN)
+pwmgpio::pwmgpio() : gpio(/*GetPeripheralBase() + */PWM_BASE, PWM_LEN)
 {
 
 	gpioreg[PWM_CTL] = 0;
@@ -805,7 +934,7 @@ int pwmgpio::SetPrediv(int predivisor) //Mode should be only for SYNC or a Data
 
 // ********************************** PCM GPIO (I2S) **********************************
 
-pcmgpio::pcmgpio() : gpio(GetPeripheralBase() + PCM_BASE, PCM_LEN)
+pcmgpio::pcmgpio() : gpio(PCM_BASE, PCM_LEN)
 {
 	gpioreg[PCM_CS_A] = 1; // Disable Rx+Tx, Enable PCM block
 }
@@ -890,7 +1019,7 @@ int pcmgpio::SetPrediv(int predivisor) //Carefull we use a 10 fixe divisor for n
 
 // ********************************** PADGPIO (Amplitude) **********************************
 
-padgpio::padgpio() : gpio(GetPeripheralBase() + PADS_GPIO, PADS_GPIO_LEN)
+padgpio::padgpio() : gpio(PADS_GPIO, PADS_GPIO_LEN)
 {
 }
 

src/gpio.h

@@ -7,7 +7,9 @@
 
 class gpio
 {
-
+	public:
+  bool pi_is_2711=false;	
+  uint64_t XOSC_FREQUENCY=19200000; 
   public:
 	volatile uint32_t *gpioreg = NULL;
 	uint32_t gpiolen;
@@ -57,7 +59,7 @@ class dmagpio : public gpio
 //************************************ GENERAL GPIO ***************************************
 
 #define GENERAL_BASE (0x00200000)
-#define GENERAL_LEN 0xB4
+#define GENERAL_LEN 0xD0
 
 #define GPFSEL0 (0x00 / 4)
 #define GPFSEL1 (0x04 / 4)
@@ -66,6 +68,11 @@ class dmagpio : public gpio
 #define GPPUDCLK0 (0x98 / 4)
 #define GPPUDCLK1 (0x9C / 4)
 
+#define GPPUPPDN0 (0xBC/4)
+#define GPPUPPDN1 (0xC0/4)
+#define GPPUPPDN2 (0xC4/4)
+#define GPPUPPDN3 (0xC8/4)
+
 enum
 {
 	fsel_input,
@@ -104,6 +111,8 @@ class generalgpio : public gpio
 #define GPCLK_DIV_2 (0x84 / 4)
 #define EMMCCLK_CNTL (0x1C0 / 4)
 #define EMMCCLK_DIV (0x1C4 / 4)
+#define CM_EMMC2CTL		(0x1d0/4)
+#define CM_EMMC2DIV		(0x1d4/4)
 
 #define CM_VPUCTL 0x008
 #define CM_VPUDIV 0x00c
@@ -246,8 +255,8 @@ class generalgpio : public gpio
 #define PLLH_STS (0x1660 / 4)
 
 #define XOSC_CTRL (0x1190 / 4)
-#define XOSC_FREQUENCY 19200000
-
+//#define XOSC_FREQUENCY 19200000
+//#define XOSC_FREQUENCY 54000000
 //Parent PLL
 enum
 {

src/iqdmasync.h

@@ -11,15 +11,15 @@
 
 class iqdmasync:public bufferdma,public clkgpio,public pwmgpio,public pcmgpio
 {
+      
 	protected:
 	uint64_t tunefreq;
 	bool syncwithpwm;
 	dsp mydsp;
-	int ModeIQ=MODE_IQ;
 	uint32_t	Originfsel; //Save the original FSEL GPIO
 	uint32_t SampleRate;
 	public:
-	
+	int ModeIQ=MODE_IQ;
 	iqdmasync(uint64_t TuneFrequency,uint32_t SR,int Channel,uint32_t FifoSize,int Mode);
 	~iqdmasync();
 	void SetDmaAlgo();

src/ookburst.cpp

@@ -20,139 +20,144 @@ This program is free software: you can redistribute it and/or modify
 #include "ookburst.h"
 #include "util.h"
 
-
-	ookburst::ookburst(uint64_t TuneFrequency,uint32_t SymbolRate,int Channel,uint32_t FifoSize):bufferdma(Channel,FifoSize+2,2,1)
-	{
+ookburst::ookburst(uint64_t TuneFrequency, float SymbolRate, int Channel, uint32_t FifoSize, size_t upsample, float RatioRamp) : bufferdma(Channel, FifoSize * upsample + 2, 2, 1),SR_upsample(upsample)
+{
 
 	clkgpio::SetAdvancedPllMode(true);
 
-		clkgpio::SetCenterFrequency(TuneFrequency,0); // Bandwidth is 0 because frequency always the same
+	clkgpio::SetCenterFrequency(TuneFrequency, 0); // Bandwidth is 0 because frequency always the same
 	clkgpio::SetFrequency(0);
 
-		syncwithpwm=false;
+	syncwithpwm = false;
+	Ramp = SR_upsample * RatioRamp; //Ramp time
 
-		if(syncwithpwm)
+	if (syncwithpwm)
 	{
-			pwmgpio::SetPllNumber(clk_plld,1);
-			pwmgpio::SetFrequency(SymbolRate);
+		pwmgpio::SetPllNumber(clk_plld, 1);
+		pwmgpio::SetFrequency(SymbolRate * (float)upsample);
 	}
 	else
 	{
-			pcmgpio::SetPllNumber(clk_plld,1);
-			pcmgpio::SetFrequency(SymbolRate);
+		pcmgpio::SetPllNumber(clk_plld, 1);
+		pcmgpio::SetFrequency(SymbolRate * float(upsample));
 	}
 
-	
-	   Originfsel=clkgpio::gengpio.gpioreg[GPFSEL0];
+	Originfsel = clkgpio::gengpio.gpioreg[GPFSEL0];
 	SetDmaAlgo();
+}
 
-		
-		
-	}
-
-	ookburst::~ookburst()
-	{
-	}
-
-	void ookburst::SetDmaAlgo()
+ookburst::~ookburst()
 {
-			dma_cb_t *cbp=cbarray;
+}
+
+void ookburst::SetDmaAlgo()
+{
+	dma_cb_t *cbp = cbarray;
 	// We must fill the FIFO (PWM or PCM) to be Synchronized from start
 	// PWM FIFO = 16
 	// PCM FIFO = 64
-			if(syncwithpwm)
+	if (syncwithpwm)
 	{
-				SetEasyCB(cbp++,0,dma_pwm,16+1);
+		SetEasyCB(cbp++, 0, dma_pwm, 16 + 1);
 	}
 	else
 	{
-				SetEasyCB(cbp++,0,dma_pcm,64+1);
-				
+		SetEasyCB(cbp++, 0, dma_pcm, 64 + 1);
 	}
 
-			for (uint32_t samplecnt = 0; samplecnt < buffersize-2; samplecnt++) 
+	for (uint32_t samplecnt = 0; samplecnt < buffersize - 2; samplecnt++)
 	{
 
 		//Set Amplitude  to FSEL for amplitude=0
-				SetEasyCB(cbp++,samplecnt*registerbysample,dma_fsel,1);
+		SetEasyCB(cbp++, samplecnt * registerbysample, dma_fsel, 1);
 		// Delay
-				SetEasyCB(cbp++,samplecnt*registerbysample,syncwithpwm?dma_pwm:dma_pcm,1);
-				
-			
+		SetEasyCB(cbp++, samplecnt * registerbysample, syncwithpwm ? dma_pwm : dma_pcm, 1);
 	}
-			lastcbp=cbp;
+	lastcbp = cbp;
 
 	// Last CBP before stopping : disable output
-			sampletab[buffersize*registerbysample-1]=(Originfsel & ~(7 << 12)) | (0 << 12); //Disable Clk
-			SetEasyCB(cbp,buffersize*registerbysample-1,dma_fsel,1);
+	sampletab[buffersize * registerbysample - 1] = (Originfsel & ~(7 << 12)) | (0 << 12); //Disable Clk
+	SetEasyCB(cbp, buffersize * registerbysample - 1, dma_fsel, 1);
 	cbp->next = 0; // Stop DMA
-			
 }
-	void ookburst::SetSymbols(unsigned char *Symbols,uint32_t Size)
+void ookburst::SetSymbols(unsigned char *Symbols, uint32_t Size)
+{
+	if (Size > buffersize - 2)
 	{
-		if(Size>buffersize-2) {dbg_printf(1,"Buffer overflow\n");return;}
+		dbg_printf(1, "Buffer overflow\n");
+		return;
+	}
 
-		dma_cb_t *cbp=cbarray;
+	dma_cb_t *cbp = cbarray;
 	cbp++; // Skip the first which is the Fiiling of Fifo
 
-		
-		for(unsigned i=0;i<Size;i++)
+	for (unsigned i = 0; i < Size; i++)
 	{
-			
-			sampletab[i]=(Symbols[i]==0)?((Originfsel & ~(7 << 12)) | (0 << 12)):((Originfsel & ~(7 << 12)) | (4 << 12));
-		
-			cbp++;//SKIP FSEL CB
+		for (size_t j = 0; j < SR_upsample - Ramp; j++)
+		{
+			sampletab[i * SR_upsample + j] = (Symbols[i] == 0) ? ((Originfsel & ~(7 << 12)) | (0 << 12)) : ((Originfsel & ~(7 << 12)) | (4 << 12));
+			cbp++; //SKIP FSEL CB
 			cbp->next = mem_virt_to_phys(cbp + 1);
-			
-			//dbg_printf(1,"cbp : sample %d pointer %p src %x dest %x next %x\n",i,cbp,cbp->src,cbp->dst,cbp->next);
 			cbp++;
+		}
+		for (size_t j = 0; j < Ramp; j++)
+		{
+			if (i < Size - 1)
+			{
+				sampletab[i * SR_upsample + j + SR_upsample - Ramp] = (Symbols[i] == 0) ? ((Originfsel & ~(7 << 12)) | (0 << 12)) : ((Originfsel & ~(7 << 12)) | (4 << 12));
 				
 			}
+			else
+			{
+				sampletab[i * SR_upsample + j + SR_upsample - Ramp] = (Symbols[i] == 0) ? ((Originfsel & ~(7 << 12)) | (0 << 12)) : ((Originfsel & ~(7 << 12)) | (4 << 12));
+			}
+
+			cbp++; //SKIP FREQ CB
+			cbp->next = mem_virt_to_phys(cbp + 1);
+			cbp++;
+		}
+	}
 
 	cbp--;
 	cbp->next = mem_virt_to_phys(lastcbp);
 
-				
 	dma::start();
 
-		
-		while(isrunning()) //Block function : return until sent completely signal
+	while (isrunning()) //Block function : return until sent completely signal
 	{
 		usleep(100);
-			
 	}
-		usleep(100);//To be sure last symbol Tx ?
+	usleep(100); //To be sure last symbol Tx ?
+}
 
-	}
+//****************************** OOK BURST TIMING *****************************************
+// SampleRate is set to 0.1MHZ,means 10us granularity, MaxMessageDuration in us
+ookbursttiming::ookbursttiming(uint64_t TuneFrequency, size_t MaxMessageDuration) : ookburst(TuneFrequency, 1e5, 14, MaxMessageDuration / 10)
+{
+	m_MaxMessage = MaxMessageDuration;
+	ookrenderbuffer = new unsigned char[m_MaxMessage];
+}
 
-	//****************************** OOK BURST TIMING *****************************************
-	// SampleRate is set to 0.1MHZ,means 10us granularity, MaxMessageDuration in us
-	ookbursttiming::ookbursttiming(uint64_t TuneFrequency,size_t MaxMessageDuration):ookburst(TuneFrequency,1e5,14,MaxMessageDuration/10)
-	{
-		m_MaxMessage=MaxMessageDuration;
-		ookrenderbuffer=new unsigned char[m_MaxMessage];
-	}
+ookbursttiming::~ookbursttiming()
+{
+	if (ookrenderbuffer != nullptr)
+		delete[] ookrenderbuffer;
+}
 
-	ookbursttiming::~ookbursttiming()
+void ookbursttiming::SendMessage(SampleOOKTiming *TabSymbols, size_t Size)
+{
+	size_t n = 0;
+	for (size_t i = 0; i < Size; i++)
 	{
-		if(ookrenderbuffer!=nullptr)
-			delete []ookrenderbuffer;
-	}
-
-	void ookbursttiming::SendMessage(SampleOOKTiming *TabSymbols,size_t Size)
+		for (size_t j = 0; j < TabSymbols[i].duration / 10; j++)
 		{
-		size_t n=0;
-		for (size_t i=0;i<Size;i++)
+			ookrenderbuffer[n++] = TabSymbols[i].value;
+			if (n >= m_MaxMessage)
 			{
-			for(size_t j=0;j<TabSymbols[i].duration/10;j++)
-			{
-				ookrenderbuffer[n++]=TabSymbols[i].value;
-				if(n>=m_MaxMessage) 
-				{
-					dbg_printf(1,"OOK Message too long abort time(%d/%d)\n",n,m_MaxMessage);
+				dbg_printf(1, "OOK Message too long abort time(%d/%d)\n", n, m_MaxMessage);
 				return;
 			}
 		}
 	}
-		SetSymbols(ookrenderbuffer,n);
-	}
+	SetSymbols(ookrenderbuffer, n);
+}

src/ookburst.h

@@ -12,8 +12,10 @@ class ookburst:public bufferdma,public clkgpio,public pwmgpio,public pcmgpio
 	uint32_t Originfsel;
 	bool syncwithpwm;
 	dma_cb_t *lastcbp;
+	size_t SR_upsample=1;
+	size_t Ramp=0.0;
 	public:
-	ookburst(uint64_t TuneFrequency,uint32_t SymbolRate,int Channel,uint32_t FifoSize);
+	ookburst(uint64_t TuneFrequency,float SymbolRate,int Channel,uint32_t FifoSize, size_t upsample=1,float RatioRamp=0.0);
 	~ookburst();
 	void SetDmaAlgo();
 	

src/phasedmasync.cpp

@@ -41,7 +41,7 @@ phasedmasync::phasedmasync(uint64_t TuneFrequency,uint32_t SampleRateIn,int Numb
 	clkgpio::SetAdvancedPllMode(true);
 	
 	clkgpio::ComputeBestLO(tunefreq,0); // compute PWM divider according to MasterPLL clkgpio::PllFixDivider
-	double FloatMult=((double)(tunefreq)*clkgpio::PllFixDivider)/(double)(XOSC_FREQUENCY);
+	double FloatMult=((double)(tunefreq)*clkgpio::PllFixDivider)/(double)(pwmgpio::XOSC_FREQUENCY);
 	uint32_t freqctl = FloatMult*((double)(1<<20)) ; 
 	int IntMultiply= freqctl>>20; // Need to be calculated to have a center frequency
 	freqctl&=0xFFFFF; // Fractionnal is 20bits

src/rpi.c

@@ -0,0 +1,31 @@
+#include "stdint.h"
+#include <cstdio>
+
+static unsigned get_dt_ranges(const char *filename, unsigned offset)
+{
+   unsigned address = ~0;
+   FILE *fp = fopen(filename, "rb");
+   if (fp)
+   {
+      unsigned char buf[4];
+      fseek(fp, offset, SEEK_SET);
+      if (fread(buf, 1, sizeof buf, fp) == sizeof buf)
+         address = buf[0] << 24 | buf[1] << 16 | buf[2] << 8 | buf[3] << 0;
+      fclose(fp);
+   }
+   return address;
+}
+
+unsigned bcm_host_get_peripheral_address(void)
+{
+   unsigned address = get_dt_ranges("/proc/device-tree/soc/ranges", 4);
+   if (address == 0)
+      address = get_dt_ranges("/proc/device-tree/soc/ranges", 8);
+   return address == ~0u ? 0x20000000 : address;
+}
+
+unsigned bcm_host_get_sdram_address(void)
+{
+    unsigned address = get_dt_ranges("/proc/device-tree/axi/vc_mem/reg", 8);
+    return address == ~0u ? 0x40000000 : address;
+}

src/rpi.h

@@ -0,0 +1,3 @@
+unsigned get_dt_ranges(const char *filename, unsigned offset);
+unsigned bcm_host_get_peripheral_address(void);
+unsigned bcm_host_get_sdram_address(void);

src/util.cpp

@@ -7,6 +7,11 @@ void dbg_setlevel(int Level)
     debug_level=Level;
 }
 
+int dbg_getlevel()
+{
+    return debug_level;
+}
+
 void dbg_printf(int Level, const char *fmt, ...)
 {
     if (Level <= debug_level)

src/util.h

@@ -5,6 +5,7 @@
 #include <stdarg.h>
 
 void dbg_setlevel(int Level);
+int dbg_getlevel();
 void dbg_printf(int Level, const char *fmt, ...);
 
 #endif