Software to turn the RTL2832U into a SDR receiver
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rtl-sdr/include/tuner_e4000.h

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3.6 KiB

#ifndef __TUNER_E4000_H
#define __TUNER_E4000_H
/**
@file
@brief E4000 tuner module declaration
One can manipulate E4000 tuner through E4000 module.
E4000 module is derived from tuner module.
@par Example:
@code
// The example is the same as the tuner example in tuner_base.h except the listed lines.
#include "tuner_e4000.h"
...
int main(void)
{
TUNER_MODULE *pTuner;
E4000_EXTRA_MODULE *pTunerExtra;
TUNER_MODULE TunerModuleMemory;
BASE_INTERFACE_MODULE BaseInterfaceModuleMemory;
// I2C_BRIDGE_MODULE I2cBridgeModuleMemory;
unsigned long BandwidthMode;
...
// Build E4000 tuner module.
BuildE4000Module(
&pTuner,
&TunerModuleMemory,
&BaseInterfaceModuleMemory,
&I2cBridgeModuleMemory,
0xac, // I2C device address is 0xac in 8-bit format.
CRYSTAL_FREQ_16384000HZ, // Crystal frequency is 16.384 MHz.
E4000_AGC_INTERNAL // The E4000 AGC mode is internal AGC mode.
);
// Get E4000 tuner extra module.
pTunerExtra = (T2266_EXTRA_MODULE *)(pTuner->pExtra);
// ==== Initialize tuner and set its parameters =====
...
// Set E4000 bandwidth.
pTunerExtra->SetBandwidthMode(pTuner, E4000_BANDWIDTH_6MHZ);
// ==== Get tuner information =====
...
// Get E4000 bandwidth.
pTunerExtra->GetBandwidthMode(pTuner, &BandwidthMode);
// See the example for other tuner functions in tuner_base.h
return 0;
}
@endcode
*/
//#include "tuner_base.h"
// The following context is implemented for E4000 source code.
// Definition (implemeted for E4000)
#define E4000_1_SUCCESS 1
#define E4000_1_FAIL 0
#define E4000_I2C_SUCCESS 1
#define E4000_I2C_FAIL 0
// Function (implemeted for E4000)
int
I2CReadByte(void *pTuner,
unsigned char NoUse,
unsigned char RegAddr,
unsigned char *pReadingByte
);
int
I2CWriteByte(
void *pTuner,
unsigned char NoUse,
unsigned char RegAddr,
unsigned char WritingByte
);
int
I2CWriteArray(void *pTuner,
unsigned char NoUse,
unsigned char RegStartAddr,
unsigned char ByteNum,
unsigned char *pWritingBytes
);
// Functions (from E4000 source code)
int tunerreset (void *pTuner);
int Tunerclock(void *pTuner);
int Qpeak(void *pTuner);
int DCoffloop(void *pTuner);
int GainControlinit(void *pTuner);
int Gainmanual(void *pTuner);
int E4000_gain_freq(void *pTuner, int frequency);
int PLL(void *pTuner, int Ref_clk, int Freq);
int LNAfilter(void *pTuner, int Freq);
int IFfilter(void *pTuner, int bandwidth, int Ref_clk);
int freqband(void *pTuner, int Freq);
int DCoffLUT(void *pTuner);
int GainControlauto(void *pTuner);
int E4000_sensitivity(void *pTuner, int Freq, int bandwidth);
int E4000_linearity(void *pTuner, int Freq, int bandwidth);
int E4000_high_linearity(void *pTuner);
int E4000_nominal(void *pTuner, int Freq, int bandwidth);
// The following context is E4000 tuner API source code
// Definitions
// Bandwidth in Hz
enum E4000_BANDWIDTH_HZ
{
E4000_BANDWIDTH_6000000HZ = 6000000,
E4000_BANDWIDTH_7000000HZ = 7000000,
E4000_BANDWIDTH_8000000HZ = 8000000,
};
// Manipulaing functions
void
e4000_GetTunerType(
void *pTuner,
int *pTunerType
);
void
e4000_GetDeviceAddr(
void *pTuner,
unsigned char *pDeviceAddr
);
int
e4000_Initialize(
void *pTuner
);
int
e4000_SetRfFreqHz(
void *pTuner,
unsigned long RfFreqHz
);
int
e4000_GetRfFreqHz(
void *pTuner,
unsigned long *pRfFreqHz
);
// Extra manipulaing functions
int
e4000_GetRegByte(
void *pTuner,
unsigned char RegAddr,
unsigned char *pReadingByte
);
int
e4000_SetBandwidthHz(
void *pTuner,
unsigned long BandwidthHz
);
int
e4000_GetBandwidthHz(
void *pTuner,
unsigned long *pBandwidthHz
);
#endif