Steve Markgraf
14 years ago
parent
6322c9343d
commit
b5e4b76885
@ -1,5 +1,5 @@ |
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rtlsdr_HEADERS = rtl-sdr.h
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rtlsdr_HEADERS = rtl-sdr.h
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noinst_HEADERS = rtlsdr_i2c.h tuner_e4000.h tuner_fc0012.h tuner_fc0013.h
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noinst_HEADERS = rtlsdr_i2c.h tuner_e4000.h tuner_fc0012.h tuner_fc0013.h tuner_fc2580.h
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rtlsdrdir = $(includedir)
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rtlsdrdir = $(includedir)
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@ -0,0 +1,127 @@ |
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#ifndef __TUNER_FC2580_H |
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#define __TUNER_FC2580_H |
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#define BORDER_FREQ 2600000 //2.6GHz : The border frequency which determines whether Low VCO or High VCO is used
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#define USE_EXT_CLK 0 //0 : Use internal XTAL Oscillator / 1 : Use External Clock input
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#define OFS_RSSI 57 |
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#define FC2580_I2C_ADDR 0xac |
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#define FC2580_CHECK_ADDR 0x01 |
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#define FC2580_CHECK_VAL 0x56 |
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typedef enum { |
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FC2580_UHF_BAND, |
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FC2580_L_BAND, |
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FC2580_VHF_BAND, |
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FC2580_NO_BAND |
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} fc2580_band_type; |
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typedef enum { |
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FC2580_FCI_FAIL, |
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FC2580_FCI_SUCCESS |
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} fc2580_fci_result_type; |
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enum FUNCTION_STATUS |
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{ |
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FUNCTION_SUCCESS, |
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FUNCTION_ERROR, |
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}; |
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extern void fc2580_wait_msec(void *pTuner, int a); |
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fc2580_fci_result_type fc2580_i2c_write(void *pTuner, unsigned char reg, unsigned char val); |
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fc2580_fci_result_type fc2580_i2c_read(void *pTuner, unsigned char reg, unsigned char *read_data); |
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/*==============================================================================
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fc2580 initial setting |
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This function is a generic function which gets called to initialize |
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fc2580 in DVB-H mode or L-Band TDMB mode |
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<input parameter> |
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ifagc_mode |
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type : integer |
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1 : Internal AGC |
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2 : Voltage Control Mode |
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==============================================================================*/ |
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fc2580_fci_result_type fc2580_set_init(void *pTuner, int ifagc_mode, unsigned int freq_xtal ); |
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/*==============================================================================
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fc2580 frequency setting |
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This function is a generic function which gets called to change LO Frequency |
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of fc2580 in DVB-H mode or L-Band TDMB mode |
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<input parameter> |
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f_lo |
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Value of target LO Frequency in 'kHz' unit |
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ex) 2.6GHz = 2600000 |
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==============================================================================*/ |
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fc2580_fci_result_type fc2580_set_freq(void *pTuner, unsigned int f_lo, unsigned int freq_xtal ); |
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/*==============================================================================
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fc2580 filter BW setting |
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This function is a generic function which gets called to change Bandwidth |
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frequency of fc2580's channel selection filter |
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<input parameter> |
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filter_bw |
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1 : 1.53MHz(TDMB) |
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6 : 6MHz |
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7 : 7MHz |
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8 : 7.8MHz |
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==============================================================================*/ |
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fc2580_fci_result_type fc2580_set_filter( void *pTuner, unsigned char filter_bw, unsigned int freq_xtal ); |
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// The following context is FC2580 tuner API source code
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// Definitions
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// AGC mode
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enum FC2580_AGC_MODE |
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{ |
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FC2580_AGC_INTERNAL = 1, |
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FC2580_AGC_EXTERNAL = 2, |
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}; |
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// Bandwidth mode
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enum FC2580_BANDWIDTH_MODE |
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{ |
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FC2580_BANDWIDTH_1530000HZ = 1, |
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FC2580_BANDWIDTH_6000000HZ = 6, |
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FC2580_BANDWIDTH_7000000HZ = 7, |
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FC2580_BANDWIDTH_8000000HZ = 8, |
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}; |
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// Manipulaing functions
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int |
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fc2580_Initialize( |
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void *pTuner |
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); |
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int |
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fc2580_SetRfFreqHz( |
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void *pTuner, |
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unsigned long RfFreqHz |
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); |
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// Extra manipulaing functions
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int |
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fc2580_SetBandwidthMode( |
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void *pTuner, |
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int BandwidthMode |
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); |
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#endif |
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@ -0,0 +1,494 @@ |
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/*
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* FCI FC2580 tuner driver, taken from the kernel driver that can be found |
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* on http://linux.terratec.de/tv_en.html
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* |
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* This driver is a mess, and should be cleaned up/rewritten. |
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* |
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*/ |
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#include <stdint.h> |
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#include "rtlsdr_i2c.h" |
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#include "tuner_fc2580.h" |
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/* 16.384 MHz (at least on the Logilink VG0002A) */ |
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#define CRYSTAL_FREQ 16384000 |
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/* glue functions to rtl-sdr code */ |
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fc2580_fci_result_type fc2580_i2c_write(void *pTuner, unsigned char reg, unsigned char val) |
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{ |
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uint8_t data[2]; |
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data[0] = reg; |
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data[1] = val; |
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if (rtlsdr_i2c_write((rtlsdr_dev_t *)pTuner, FC2580_I2C_ADDR, data, 2) < 0) |
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return FC2580_FCI_FAIL; |
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return FC2580_FCI_SUCCESS; |
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} |
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fc2580_fci_result_type fc2580_i2c_read(void *pTuner, unsigned char reg, unsigned char *read_data) |
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{ |
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uint8_t data = reg; |
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if (rtlsdr_i2c_write((rtlsdr_dev_t *)pTuner, FC2580_I2C_ADDR, &data, 1) < 0) |
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return FC2580_FCI_FAIL; |
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if (rtlsdr_i2c_read((rtlsdr_dev_t *)pTuner, FC2580_I2C_ADDR, &data, 1) < 0) |
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return FC2580_FCI_FAIL; |
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*read_data = data; |
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return FC2580_FCI_SUCCESS; |
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} |
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int |
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fc2580_Initialize( |
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void *pTuner |
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) |
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{ |
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int AgcMode; |
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unsigned int CrystalFreqKhz; |
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//TODO set AGC mode
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AgcMode = FC2580_AGC_EXTERNAL; |
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// Initialize tuner with AGC mode.
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// Note: CrystalFreqKhz = round(CrystalFreqHz / 1000)
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CrystalFreqKhz = (unsigned int)((CRYSTAL_FREQ + 500) / 1000); |
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if(fc2580_set_init(pTuner, AgcMode, CrystalFreqKhz) != FC2580_FCI_SUCCESS) |
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goto error_status_initialize_tuner; |
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return FUNCTION_SUCCESS; |
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error_status_initialize_tuner: |
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return FUNCTION_ERROR; |
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} |
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int |
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fc2580_SetRfFreqHz( |
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void *pTuner, |
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unsigned long RfFreqHz |
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) |
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{ |
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unsigned int RfFreqKhz; |
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unsigned int CrystalFreqKhz; |
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// Set tuner RF frequency in KHz.
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// Note: RfFreqKhz = round(RfFreqHz / 1000)
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// CrystalFreqKhz = round(CrystalFreqHz / 1000)
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RfFreqKhz = (unsigned int)((RfFreqHz + 500) / 1000); |
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CrystalFreqKhz = (unsigned int)((CRYSTAL_FREQ + 500) / 1000); |
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if(fc2580_set_freq(pTuner, RfFreqKhz, CrystalFreqKhz) != FC2580_FCI_SUCCESS) |
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goto error_status_set_tuner_rf_frequency; |
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return FUNCTION_SUCCESS; |
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error_status_set_tuner_rf_frequency: |
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return FUNCTION_ERROR; |
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} |
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/**
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@brief Set FC2580 tuner bandwidth mode. |
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*/ |
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int |
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fc2580_SetBandwidthMode( |
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void *pTuner, |
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int BandwidthMode |
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) |
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{ |
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unsigned int CrystalFreqKhz; |
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// Set tuner bandwidth mode.
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// Note: CrystalFreqKhz = round(CrystalFreqHz / 1000)
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CrystalFreqKhz = (unsigned int)((CRYSTAL_FREQ + 500) / 1000); |
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if(fc2580_set_filter(pTuner, (unsigned char)BandwidthMode, CrystalFreqKhz) != FC2580_FCI_SUCCESS) |
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goto error_status_set_tuner_bandwidth_mode; |
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return FUNCTION_SUCCESS; |
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error_status_set_tuner_bandwidth_mode: |
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return FUNCTION_ERROR; |
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} |
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void fc2580_wait_msec(void *pTuner, int a) |
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{ |
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/* USB latency is enough for now ;) */ |
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// usleep(a * 1000);
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return; |
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} |
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/*==============================================================================
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fc2580 initial setting |
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This function is a generic function which gets called to initialize |
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fc2580 in DVB-H mode or L-Band TDMB mode |
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<input parameter> |
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ifagc_mode |
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type : integer |
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1 : Internal AGC |
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2 : Voltage Control Mode |
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==============================================================================*/ |
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fc2580_fci_result_type fc2580_set_init( void *pTuner, int ifagc_mode, unsigned int freq_xtal ) |
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{ |
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fc2580_fci_result_type result = FC2580_FCI_SUCCESS; |
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result &= fc2580_i2c_write(pTuner, 0x00, 0x00); /*** Confidential ***/ |
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result &= fc2580_i2c_write(pTuner, 0x12, 0x86); |
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result &= fc2580_i2c_write(pTuner, 0x14, 0x5C); |
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result &= fc2580_i2c_write(pTuner, 0x16, 0x3C); |
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result &= fc2580_i2c_write(pTuner, 0x1F, 0xD2); |
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result &= fc2580_i2c_write(pTuner, 0x09, 0xD7); |
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result &= fc2580_i2c_write(pTuner, 0x0B, 0xD5); |
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result &= fc2580_i2c_write(pTuner, 0x0C, 0x32); |
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result &= fc2580_i2c_write(pTuner, 0x0E, 0x43); |
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result &= fc2580_i2c_write(pTuner, 0x21, 0x0A); |
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result &= fc2580_i2c_write(pTuner, 0x22, 0x82); |
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if( ifagc_mode == 1 ) |
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{ |
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result &= fc2580_i2c_write(pTuner, 0x45, 0x10); //internal AGC
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result &= fc2580_i2c_write(pTuner, 0x4C, 0x00); //HOLD_AGC polarity
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} |
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else if( ifagc_mode == 2 ) |
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{ |
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result &= fc2580_i2c_write(pTuner, 0x45, 0x20); //Voltage Control Mode
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result &= fc2580_i2c_write(pTuner, 0x4C, 0x02); //HOLD_AGC polarity
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} |
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result &= fc2580_i2c_write(pTuner, 0x3F, 0x88); |
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result &= fc2580_i2c_write(pTuner, 0x02, 0x0E); |
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result &= fc2580_i2c_write(pTuner, 0x58, 0x14); |
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result &= fc2580_set_filter(pTuner, 8, freq_xtal); //BW = 7.8MHz
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return result; |
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} |
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/*==============================================================================
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fc2580 frequency setting |
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This function is a generic function which gets called to change LO Frequency |
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of fc2580 in DVB-H mode or L-Band TDMB mode |
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<input parameter> |
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freq_xtal: kHz |
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f_lo |
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Value of target LO Frequency in 'kHz' unit |
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ex) 2.6GHz = 2600000 |
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==============================================================================*/ |
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fc2580_fci_result_type fc2580_set_freq( void *pTuner, unsigned int f_lo, unsigned int freq_xtal ) |
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{ |
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unsigned int f_diff, f_diff_shifted, n_val, k_val; |
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unsigned int f_vco, r_val, f_comp; |
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unsigned char pre_shift_bits = 4;// number of preshift to prevent overflow in shifting f_diff to f_diff_shifted
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unsigned char data_0x18; |
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unsigned char data_0x02 = (USE_EXT_CLK<<5)|0x0E; |
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fc2580_band_type band = ( f_lo > 1000000 )? FC2580_L_BAND : ( f_lo > 400000 )? FC2580_UHF_BAND : FC2580_VHF_BAND; |
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fc2580_fci_result_type result = FC2580_FCI_SUCCESS; |
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f_vco = ( band == FC2580_UHF_BAND )? f_lo * 4 : (( band == FC2580_L_BAND )? f_lo * 2 : f_lo * 12); |
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r_val = ( f_vco >= 2*76*freq_xtal )? 1 : ( f_vco >= 76*freq_xtal )? 2 : 4; |
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f_comp = freq_xtal/r_val; |
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n_val = ( f_vco / 2 ) / f_comp; |
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f_diff = f_vco - 2* f_comp * n_val; |
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f_diff_shifted = f_diff << ( 20 - pre_shift_bits ); |
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k_val = f_diff_shifted / ( ( 2* f_comp ) >> pre_shift_bits ); |
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if( f_diff_shifted - k_val * ( ( 2* f_comp ) >> pre_shift_bits ) >= ( f_comp >> pre_shift_bits ) ) |
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k_val = k_val + 1; |
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if( f_vco >= BORDER_FREQ ) //Select VCO Band
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data_0x02 = data_0x02 | 0x08; //0x02[3] = 1;
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else |
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data_0x02 = data_0x02 & 0xF7; //0x02[3] = 0;
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// if( band != curr_band ) {
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switch(band) |
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{ |
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case FC2580_UHF_BAND: |
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data_0x02 = (data_0x02 & 0x3F); |
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result &= fc2580_i2c_write(pTuner, 0x25, 0xF0); |
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result &= fc2580_i2c_write(pTuner, 0x27, 0x77); |
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result &= fc2580_i2c_write(pTuner, 0x28, 0x53); |
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result &= fc2580_i2c_write(pTuner, 0x29, 0x60); |
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result &= fc2580_i2c_write(pTuner, 0x30, 0x09); |
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result &= fc2580_i2c_write(pTuner, 0x50, 0x8C); |
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result &= fc2580_i2c_write(pTuner, 0x53, 0x50); |
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if( f_lo < 538000 ) |
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result &= fc2580_i2c_write(pTuner, 0x5F, 0x13); |
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else
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result &= fc2580_i2c_write(pTuner, 0x5F, 0x15); |
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if( f_lo < 538000 ) |
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{ |
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result &= fc2580_i2c_write(pTuner, 0x61, 0x07); |
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result &= fc2580_i2c_write(pTuner, 0x62, 0x06); |
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result &= fc2580_i2c_write(pTuner, 0x67, 0x06); |
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result &= fc2580_i2c_write(pTuner, 0x68, 0x08); |
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result &= fc2580_i2c_write(pTuner, 0x69, 0x10); |
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result &= fc2580_i2c_write(pTuner, 0x6A, 0x12); |
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} |
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else if( f_lo < 794000 ) |
||||||
|
{ |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x61, 0x03); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x62, 0x03); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x67, 0x03); //ACI improve
|
||||||
|
result &= fc2580_i2c_write(pTuner, 0x68, 0x05); //ACI improve
|
||||||
|
result &= fc2580_i2c_write(pTuner, 0x69, 0x0C); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6A, 0x0E); |
||||||
|
} |
||||||
|
else |
||||||
|
{ |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x61, 0x07); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x62, 0x06); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x67, 0x07); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x68, 0x09); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x69, 0x10); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6A, 0x12); |
||||||
|
} |
||||||
|
|
||||||
|
result &= fc2580_i2c_write(pTuner, 0x63, 0x15); |
||||||
|
|
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6B, 0x0B); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6C, 0x0C); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6D, 0x78); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6E, 0x32); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6F, 0x14); |
||||||
|
result &= fc2580_set_filter(pTuner, 8, freq_xtal); //BW = 7.8MHz
|
||||||
|
break; |
||||||
|
case FC2580_VHF_BAND: |
||||||
|
data_0x02 = (data_0x02 & 0x3F) | 0x80; |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x27, 0x77); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x28, 0x33); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x29, 0x40); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x30, 0x09); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x50, 0x8C); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x53, 0x50); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x5F, 0x0F); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x61, 0x07); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x62, 0x00); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x63, 0x15); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x67, 0x03); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x68, 0x05); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x69, 0x10); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6A, 0x12); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6B, 0x08); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6C, 0x0A); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6D, 0x78); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6E, 0x32); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6F, 0x54); |
||||||
|
result &= fc2580_set_filter(pTuner, 7, freq_xtal); //BW = 6.8MHz
|
||||||
|
break; |
||||||
|
case FC2580_L_BAND: |
||||||
|
data_0x02 = (data_0x02 & 0x3F) | 0x40; |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2B, 0x70); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2C, 0x37); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2D, 0xE7); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x30, 0x09); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x44, 0x20); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x50, 0x8C); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x53, 0x50); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x5F, 0x0F); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x61, 0x0F); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x62, 0x00); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x63, 0x13); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x67, 0x00); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x68, 0x02); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x69, 0x0C); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6A, 0x0E); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6B, 0x08); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6C, 0x0A); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6D, 0xA0); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6E, 0x50); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x6F, 0x14); |
||||||
|
result &= fc2580_set_filter(pTuner, 1, freq_xtal); //BW = 1.53MHz
|
||||||
|
break; |
||||||
|
default: |
||||||
|
break; |
||||||
|
} |
||||||
|
// curr_band = band;
|
||||||
|
// }
|
||||||
|
|
||||||
|
//A command about AGC clock's pre-divide ratio
|
||||||
|
if( freq_xtal >= 28000 ) |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x4B, 0x22 ); |
||||||
|
|
||||||
|
//Commands about VCO Band and PLL setting.
|
||||||
|
result &= fc2580_i2c_write(pTuner, 0x02, data_0x02); |
||||||
|
data_0x18 = ( ( r_val == 1 )? 0x00 : ( ( r_val == 2 )? 0x10 : 0x20 ) ) + (unsigned char)(k_val >> 16); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x18, data_0x18); //Load 'R' value and high part of 'K' values
|
||||||
|
result &= fc2580_i2c_write(pTuner, 0x1A, (unsigned char)( k_val >> 8 ) ); //Load middle part of 'K' value
|
||||||
|
result &= fc2580_i2c_write(pTuner, 0x1B, (unsigned char)( k_val ) ); //Load lower part of 'K' value
|
||||||
|
result &= fc2580_i2c_write(pTuner, 0x1C, (unsigned char)( n_val ) ); //Load 'N' value
|
||||||
|
|
||||||
|
//A command about UHF LNA Load Cap
|
||||||
|
if( band == FC2580_UHF_BAND ) |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2D, ( f_lo <= (unsigned int)794000 )? 0x9F : 0x8F ); //LNA_OUT_CAP
|
||||||
|
|
||||||
|
|
||||||
|
return result; |
||||||
|
} |
||||||
|
|
||||||
|
|
||||||
|
/*==============================================================================
|
||||||
|
fc2580 filter BW setting |
||||||
|
|
||||||
|
This function is a generic function which gets called to change Bandwidth |
||||||
|
|
||||||
|
frequency of fc2580's channel selection filter |
||||||
|
|
||||||
|
<input parameter> |
||||||
|
freq_xtal: kHz |
||||||
|
|
||||||
|
filter_bw |
||||||
|
1 : 1.53MHz(TDMB) |
||||||
|
6 : 6MHz (Bandwidth 6MHz) |
||||||
|
7 : 6.8MHz (Bandwidth 7MHz) |
||||||
|
8 : 7.8MHz (Bandwidth 8MHz) |
||||||
|
|
||||||
|
|
||||||
|
==============================================================================*/ |
||||||
|
fc2580_fci_result_type fc2580_set_filter( void *pTuner, unsigned char filter_bw, unsigned int freq_xtal ) |
||||||
|
{ |
||||||
|
unsigned char cal_mon, i; |
||||||
|
fc2580_fci_result_type result = FC2580_FCI_SUCCESS; |
||||||
|
|
||||||
|
if(filter_bw == 1) |
||||||
|
{ |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x36, 0x1C); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x37, (unsigned char)(4151*freq_xtal/1000000) ); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x39, 0x00); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2E, 0x09); |
||||||
|
} |
||||||
|
if(filter_bw == 6) |
||||||
|
{ |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x36, 0x18); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x37, (unsigned char)(4400*freq_xtal/1000000) ); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x39, 0x00); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2E, 0x09); |
||||||
|
} |
||||||
|
else if(filter_bw == 7) |
||||||
|
{ |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x36, 0x18); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x37, (unsigned char)(3910*freq_xtal/1000000) ); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x39, 0x80); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2E, 0x09); |
||||||
|
} |
||||||
|
else if(filter_bw == 8) |
||||||
|
{ |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x36, 0x18); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x37, (unsigned char)(3300*freq_xtal/1000000) ); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x39, 0x80); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2E, 0x09); |
||||||
|
} |
||||||
|
|
||||||
|
|
||||||
|
for(i=0; i<5; i++) |
||||||
|
{ |
||||||
|
fc2580_wait_msec(pTuner, 5);//wait 5ms
|
||||||
|
result &= fc2580_i2c_read(pTuner, 0x2F, &cal_mon); |
||||||
|
if( (cal_mon & 0xC0) != 0xC0) |
||||||
|
{ |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2E, 0x01); |
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2E, 0x09); |
||||||
|
} |
||||||
|
else |
||||||
|
break; |
||||||
|
} |
||||||
|
|
||||||
|
result &= fc2580_i2c_write(pTuner, 0x2E, 0x01); |
||||||
|
|
||||||
|
return result; |
||||||
|
} |
||||||
|
|
||||||
|
/*==============================================================================
|
||||||
|
fc2580 RSSI function |
||||||
|
|
||||||
|
This function is a generic function which returns fc2580's |
||||||
|
|
||||||
|
current RSSI value. |
||||||
|
|
||||||
|
<input parameter> |
||||||
|
none |
||||||
|
|
||||||
|
<return value> |
||||||
|
int |
||||||
|
rssi : estimated input power. |
||||||
|
|
||||||
|
==============================================================================*/ |
||||||
|
//int fc2580_get_rssi(void) {
|
||||||
|
//
|
||||||
|
// unsigned char s_lna, s_rfvga, s_cfs, s_ifvga;
|
||||||
|
// int ofs_lna, ofs_rfvga, ofs_csf, ofs_ifvga, rssi;
|
||||||
|
//
|
||||||
|
// fc2580_i2c_read(0x71, &s_lna );
|
||||||
|
// fc2580_i2c_read(0x72, &s_rfvga );
|
||||||
|
// fc2580_i2c_read(0x73, &s_cfs );
|
||||||
|
// fc2580_i2c_read(0x74, &s_ifvga );
|
||||||
|
//
|
||||||
|
//
|
||||||
|
// ofs_lna =
|
||||||
|
// (curr_band==FC2580_UHF_BAND)?
|
||||||
|
// (s_lna==0)? 0 :
|
||||||
|
// (s_lna==1)? -6 :
|
||||||
|
// (s_lna==2)? -17 :
|
||||||
|
// (s_lna==3)? -22 : -30 :
|
||||||
|
// (curr_band==FC2580_VHF_BAND)?
|
||||||
|
// (s_lna==0)? 0 :
|
||||||
|
// (s_lna==1)? -6 :
|
||||||
|
// (s_lna==2)? -19 :
|
||||||
|
// (s_lna==3)? -24 : -32 :
|
||||||
|
// (curr_band==FC2580_L_BAND)?
|
||||||
|
// (s_lna==0)? 0 :
|
||||||
|
// (s_lna==1)? -6 :
|
||||||
|
// (s_lna==2)? -11 :
|
||||||
|
// (s_lna==3)? -16 : -34 :
|
||||||
|
// 0;//FC2580_NO_BAND
|
||||||
|
// ofs_rfvga = -s_rfvga+((s_rfvga>=11)? 1 : 0) + ((s_rfvga>=18)? 1 : 0);
|
||||||
|
// ofs_csf = -6*s_cfs;
|
||||||
|
// ofs_ifvga = s_ifvga/4;
|
||||||
|
//
|
||||||
|
// return rssi = ofs_lna+ofs_rfvga+ofs_csf+ofs_ifvga+OFS_RSSI;
|
||||||
|
//
|
||||||
|
//}
|
||||||
|
|
||||||
|
/*==============================================================================
|
||||||
|
fc2580 Xtal frequency Setting |
||||||
|
|
||||||
|
This function is a generic function which sets
|
||||||
|
|
||||||
|
the frequency of xtal. |
||||||
|
|
||||||
|
<input parameter> |
||||||
|
|
||||||
|
frequency |
||||||
|
frequency value of internal(external) Xtal(clock) in kHz unit. |
||||||
|
|
||||||
|
==============================================================================*/ |
||||||
|
//void fc2580_set_freq_xtal(unsigned int frequency) {
|
||||||
|
//
|
||||||
|
// freq_xtal = frequency;
|
||||||
|
//
|
||||||
|
//}
|
||||||
|
|
||||||
Loading…
Reference in new issue