+++ /dev/null
-/*
- * FCI FC2580 tuner driver, taken from the kernel driver that can be found
- * on http://linux.terratec.de/tv_en.html
- *
- * This driver is a mess, and should be cleaned up/rewritten.
- *
- */
-
-#include <stdint.h>
-
-#include "rtlsdr_i2c.h"
-#include "tuner_fc2580.h"
-
-/* 16.384 MHz (at least on the Logilink VG0002A) */
-#define CRYSTAL_FREQ 16384000
-
-/* glue functions to rtl-sdr code */
-
-fc2580_fci_result_type fc2580_i2c_write(void *pTuner, unsigned char reg, unsigned char val)
-{
- uint8_t data[2];
-
- data[0] = reg;
- data[1] = val;
-
- if (rtlsdr_i2c_write_fn(pTuner, FC2580_I2C_ADDR, data, 2) < 0)
- return FC2580_FCI_FAIL;
-
- return FC2580_FCI_SUCCESS;
-}
-
-fc2580_fci_result_type fc2580_i2c_read(void *pTuner, unsigned char reg, unsigned char *read_data)
-{
- uint8_t data = reg;
-
- if (rtlsdr_i2c_write_fn(pTuner, FC2580_I2C_ADDR, &data, 1) < 0)
- return FC2580_FCI_FAIL;
-
- if (rtlsdr_i2c_read_fn(pTuner, FC2580_I2C_ADDR, &data, 1) < 0)
- return FC2580_FCI_FAIL;
-
- *read_data = data;
-
- return FC2580_FCI_SUCCESS;
-}
-
-int
-fc2580_Initialize(
- void *pTuner
- )
-{
- int AgcMode;
- unsigned int CrystalFreqKhz;
-
- //TODO set AGC mode
- AgcMode = FC2580_AGC_EXTERNAL;
-
- // Initialize tuner with AGC mode.
- // Note: CrystalFreqKhz = round(CrystalFreqHz / 1000)
- CrystalFreqKhz = (unsigned int)((CRYSTAL_FREQ + 500) / 1000);
-
- if(fc2580_set_init(pTuner, AgcMode, CrystalFreqKhz) != FC2580_FCI_SUCCESS)
- goto error_status_initialize_tuner;
-
-
- return FUNCTION_SUCCESS;
-
-
-error_status_initialize_tuner:
- return FUNCTION_ERROR;
-}
-
-int
-fc2580_SetRfFreqHz(
- void *pTuner,
- unsigned long RfFreqHz
- )
-{
- unsigned int RfFreqKhz;
- unsigned int CrystalFreqKhz;
-
- // Set tuner RF frequency in KHz.
- // Note: RfFreqKhz = round(RfFreqHz / 1000)
- // CrystalFreqKhz = round(CrystalFreqHz / 1000)
- RfFreqKhz = (unsigned int)((RfFreqHz + 500) / 1000);
- CrystalFreqKhz = (unsigned int)((CRYSTAL_FREQ + 500) / 1000);
-
- if(fc2580_set_freq(pTuner, RfFreqKhz, CrystalFreqKhz) != FC2580_FCI_SUCCESS)
- goto error_status_set_tuner_rf_frequency;
-
- return FUNCTION_SUCCESS;
-
-error_status_set_tuner_rf_frequency:
- return FUNCTION_ERROR;
-}
-
-/**
-
-@brief Set FC2580 tuner bandwidth mode.
-
-*/
-int
-fc2580_SetBandwidthMode(
- void *pTuner,
- int BandwidthMode
- )
-{
- unsigned int CrystalFreqKhz;
-
- // Set tuner bandwidth mode.
- // Note: CrystalFreqKhz = round(CrystalFreqHz / 1000)
- CrystalFreqKhz = (unsigned int)((CRYSTAL_FREQ + 500) / 1000);
-
- if(fc2580_set_filter(pTuner, (unsigned char)BandwidthMode, CrystalFreqKhz) != FC2580_FCI_SUCCESS)
- goto error_status_set_tuner_bandwidth_mode;
-
- return FUNCTION_SUCCESS;
-
-
-error_status_set_tuner_bandwidth_mode:
- return FUNCTION_ERROR;
-}
-
-void fc2580_wait_msec(void *pTuner, int a)
-{
- /* USB latency is enough for now ;) */
-// usleep(a * 1000);
- return;
-}
-
-/*==============================================================================
- fc2580 initial setting
-
- This function is a generic function which gets called to initialize
-
- fc2580 in DVB-H mode or L-Band TDMB mode
-
- <input parameter>
-
- ifagc_mode
- type : integer
- 1 : Internal AGC
- 2 : Voltage Control Mode
-
-==============================================================================*/
-fc2580_fci_result_type fc2580_set_init( void *pTuner, int ifagc_mode, unsigned int freq_xtal )
-{
- fc2580_fci_result_type result = FC2580_FCI_SUCCESS;
-
- result &= fc2580_i2c_write(pTuner, 0x00, 0x00); /*** Confidential ***/
- result &= fc2580_i2c_write(pTuner, 0x12, 0x86);
- result &= fc2580_i2c_write(pTuner, 0x14, 0x5C);
- result &= fc2580_i2c_write(pTuner, 0x16, 0x3C);
- result &= fc2580_i2c_write(pTuner, 0x1F, 0xD2);
- result &= fc2580_i2c_write(pTuner, 0x09, 0xD7);
- result &= fc2580_i2c_write(pTuner, 0x0B, 0xD5);
- result &= fc2580_i2c_write(pTuner, 0x0C, 0x32);
- result &= fc2580_i2c_write(pTuner, 0x0E, 0x43);
- result &= fc2580_i2c_write(pTuner, 0x21, 0x0A);
- result &= fc2580_i2c_write(pTuner, 0x22, 0x82);
- if( ifagc_mode == 1 )
- {
- result &= fc2580_i2c_write(pTuner, 0x45, 0x10); //internal AGC
- result &= fc2580_i2c_write(pTuner, 0x4C, 0x00); //HOLD_AGC polarity
- }
- else if( ifagc_mode == 2 )
- {
- result &= fc2580_i2c_write(pTuner, 0x45, 0x20); //Voltage Control Mode
- result &= fc2580_i2c_write(pTuner, 0x4C, 0x02); //HOLD_AGC polarity
- }
- result &= fc2580_i2c_write(pTuner, 0x3F, 0x88);
- result &= fc2580_i2c_write(pTuner, 0x02, 0x0E);
- result &= fc2580_i2c_write(pTuner, 0x58, 0x14);
- result &= fc2580_set_filter(pTuner, 8, freq_xtal); //BW = 7.8MHz
-
- return result;
-}
-
-
-/*==============================================================================
- fc2580 frequency setting
-
- This function is a generic function which gets called to change LO Frequency
-
- of fc2580 in DVB-H mode or L-Band TDMB mode
-
- <input parameter>
- freq_xtal: kHz
-
- f_lo
- Value of target LO Frequency in 'kHz' unit
- ex) 2.6GHz = 2600000
-
-==============================================================================*/
-fc2580_fci_result_type fc2580_set_freq( void *pTuner, unsigned int f_lo, unsigned int freq_xtal )
-{
- unsigned int f_diff, f_diff_shifted, n_val, k_val;
- unsigned int f_vco, r_val, f_comp;
- unsigned char pre_shift_bits = 4;// number of preshift to prevent overflow in shifting f_diff to f_diff_shifted
- unsigned char data_0x18;
- unsigned char data_0x02 = (USE_EXT_CLK<<5)|0x0E;
-
- fc2580_band_type band = ( f_lo > 1000000 )? FC2580_L_BAND : ( f_lo > 400000 )? FC2580_UHF_BAND : FC2580_VHF_BAND;
-
- fc2580_fci_result_type result = FC2580_FCI_SUCCESS;
-
- f_vco = ( band == FC2580_UHF_BAND )? f_lo * 4 : (( band == FC2580_L_BAND )? f_lo * 2 : f_lo * 12);
- r_val = ( f_vco >= 2*76*freq_xtal )? 1 : ( f_vco >= 76*freq_xtal )? 2 : 4;
- f_comp = freq_xtal/r_val;
- n_val = ( f_vco / 2 ) / f_comp;
-
- f_diff = f_vco - 2* f_comp * n_val;
- f_diff_shifted = f_diff << ( 20 - pre_shift_bits );
- k_val = f_diff_shifted / ( ( 2* f_comp ) >> pre_shift_bits );
-
- if( f_diff_shifted - k_val * ( ( 2* f_comp ) >> pre_shift_bits ) >= ( f_comp >> pre_shift_bits ) )
- k_val = k_val + 1;
-
- if( f_vco >= BORDER_FREQ ) //Select VCO Band
- data_0x02 = data_0x02 | 0x08; //0x02[3] = 1;
- else
- data_0x02 = data_0x02 & 0xF7; //0x02[3] = 0;
-
-// if( band != curr_band ) {
- switch(band)
- {
- case FC2580_UHF_BAND:
- data_0x02 = (data_0x02 & 0x3F);
-
- result &= fc2580_i2c_write(pTuner, 0x25, 0xF0);
- result &= fc2580_i2c_write(pTuner, 0x27, 0x77);
- result &= fc2580_i2c_write(pTuner, 0x28, 0x53);
- result &= fc2580_i2c_write(pTuner, 0x29, 0x60);
- result &= fc2580_i2c_write(pTuner, 0x30, 0x09);
- result &= fc2580_i2c_write(pTuner, 0x50, 0x8C);
- result &= fc2580_i2c_write(pTuner, 0x53, 0x50);
-
- if( f_lo < 538000 )
- result &= fc2580_i2c_write(pTuner, 0x5F, 0x13);
- else
- result &= fc2580_i2c_write(pTuner, 0x5F, 0x15);
-
- if( f_lo < 538000 )
- {
- result &= fc2580_i2c_write(pTuner, 0x61, 0x07);
- result &= fc2580_i2c_write(pTuner, 0x62, 0x06);
- result &= fc2580_i2c_write(pTuner, 0x67, 0x06);
- result &= fc2580_i2c_write(pTuner, 0x68, 0x08);
- result &= fc2580_i2c_write(pTuner, 0x69, 0x10);
- result &= fc2580_i2c_write(pTuner, 0x6A, 0x12);
- }
- 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 = 0, 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;
-//
-//}
-
projects / rtl-433.git / blobdiff