diff options
Diffstat (limited to 'src/tuner_fc2580.c')
| -rw-r--r-- | src/tuner_fc2580.c | 494 |
1 files changed, 0 insertions, 494 deletions
diff --git a/src/tuner_fc2580.c b/src/tuner_fc2580.c deleted file mode 100644 index d2eeba5..0000000 --- a/src/tuner_fc2580.c +++ /dev/null @@ -1,494 +0,0 @@ -/* - * 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; -// -//} - |