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-rw-r--r--src/tuner_fc0013.c433
1 files changed, 433 insertions, 0 deletions
diff --git a/src/tuner_fc0013.c b/src/tuner_fc0013.c
new file mode 100644
index 0000000..73b1ed9
--- /dev/null
+++ b/src/tuner_fc0013.c
@@ -0,0 +1,433 @@
+/*
+ * Fitipower FC0013 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 "tuner_fc0013.h"
+
+#define CRYSTAL_FREQ 28800000
+#define FC0013_I2C_ADDR 0xc6
+
+/* glue functions to rtl-sdr code */
+int FC0013_Write(int pTuner, unsigned char RegAddr, unsigned char Byte)
+{
+ uint8_t data[2];
+
+ data[0] = RegAddr;
+ data[1] = Byte;
+
+ if (rtl_i2c_write(FC0013_I2C_ADDR, data, 2) < 0)
+ return FC0013_I2C_ERROR;
+
+ return FC0013_I2C_SUCCESS;
+}
+
+int FC0013_Read(int pTuner, unsigned char RegAddr, unsigned char *pByte)
+{
+ uint8_t data = RegAddr;
+
+ if (rtl_i2c_write(FC0013_I2C_ADDR, &data, 1) < 0)
+ return FC0013_I2C_ERROR;
+
+ if (rtl_i2c_read(FC0013_I2C_ADDR, &data, 1) < 0)
+ return FC0013_I2C_ERROR;
+
+ *pByte = data;
+
+ return FC0013_I2C_SUCCESS;
+}
+
+int FC0013_SetVhfTrack(int pTuner, unsigned long FrequencyKHz)
+{
+ unsigned char read_byte;
+
+ if (FrequencyKHz <= 177500) // VHF Track: 7
+ {
+ if(FC0013_Read(pTuner, 0x1D, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x1D, (read_byte & 0xE3) | 0x1C) != FC0013_I2C_SUCCESS) goto error_status;
+
+ }
+ else if (FrequencyKHz <= 184500) // VHF Track: 6
+ {
+ if(FC0013_Read(pTuner, 0x1D, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x1D, (read_byte & 0xE3) | 0x18) != FC0013_I2C_SUCCESS) goto error_status;
+
+ }
+ else if (FrequencyKHz <= 191500) // VHF Track: 5
+ {
+ if(FC0013_Read(pTuner, 0x1D, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x1D, (read_byte & 0xE3) | 0x14) != FC0013_I2C_SUCCESS) goto error_status;
+
+ }
+ else if (FrequencyKHz <= 198500) // VHF Track: 4
+ {
+ if(FC0013_Read(pTuner, 0x1D, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x1D, (read_byte & 0xE3) | 0x10) != FC0013_I2C_SUCCESS) goto error_status;
+
+ }
+ else if (FrequencyKHz <= 205500) // VHF Track: 3
+ {
+ if(FC0013_Read(pTuner, 0x1D, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x1D, (read_byte & 0xE3) | 0x0C) != FC0013_I2C_SUCCESS) goto error_status;
+
+ }
+ else if (FrequencyKHz <= 212500) // VHF Track: 2
+ {
+ if(FC0013_Read(pTuner, 0x1D, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x1D, (read_byte & 0xE3) | 0x08) != FC0013_I2C_SUCCESS) goto error_status;
+
+ }
+ else if (FrequencyKHz <= 219500) // VHF Track: 2
+ {
+ if(FC0013_Read(pTuner, 0x1D, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x1D, (read_byte & 0xE3) | 0x08) != FC0013_I2C_SUCCESS) goto error_status;
+
+ }
+ else if (FrequencyKHz <= 226500) // VHF Track: 1
+ {
+ if(FC0013_Read(pTuner, 0x1D, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x1D, (read_byte & 0xE3) | 0x04) != FC0013_I2C_SUCCESS) goto error_status;
+ }
+ else // VHF Track: 1
+ {
+ if(FC0013_Read(pTuner, 0x1D, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x1D, (read_byte & 0xE3) | 0x04) != FC0013_I2C_SUCCESS) goto error_status;
+
+ }
+
+ //------------------------------------------------ arios modify 2010-12-24
+ // " | 0x10" ==> " | 0x30" (make sure reg[0x07] bit5 = 1)
+
+ // Enable VHF filter.
+ if(FC0013_Read(pTuner, 0x07, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x07, read_byte | 0x10) != FC0013_I2C_SUCCESS) goto error_status;
+
+ // Disable UHF & GPS.
+ if(FC0013_Read(pTuner, 0x14, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x14, read_byte & 0x1F) != FC0013_I2C_SUCCESS) goto error_status;
+
+
+ return FC0013_FUNCTION_SUCCESS;
+
+error_status:
+ return FC0013_FUNCTION_ERROR;
+}
+
+
+// FC0013 Open Function, includes enable/reset pin control and registers initialization.
+//void FC0013_Open()
+int FC0013_Open()
+{
+ int pTuner = 1;
+ // Enable FC0013 Power
+ // (...)
+ // FC0013 Enable = High
+ // (...)
+ // FC0013 Reset = High -> Low
+ // (...)
+
+ //================================ update base on new FC0013 register bank
+ if(FC0013_Write(pTuner, 0x01, 0x09) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x02, 0x16) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x03, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x04, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x05, 0x17) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x06, 0x02) != FC0013_I2C_SUCCESS) goto error_status;
+// if(FC0013_Write(pTuner, 0x07, 0x27) != FC0013_I2C_SUCCESS) goto error_status; // 28.8MHz, GainShift: 15
+ if(FC0013_Write(pTuner, 0x07, 0x2A) != FC0013_I2C_SUCCESS) goto error_status; // 28.8MHz, modified by Realtek
+ if(FC0013_Write(pTuner, 0x08, 0xFF) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x09, 0x6F) != FC0013_I2C_SUCCESS) goto error_status; // Enable Loop Through
+ if(FC0013_Write(pTuner, 0x0A, 0xB8) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x0B, 0x82) != FC0013_I2C_SUCCESS) goto error_status;
+
+ if(FC0013_Write(pTuner, 0x0C, 0xFE) != FC0013_I2C_SUCCESS) goto error_status; // Modified for up-dowm AGC by Realtek(for master, and for 2836BU dongle).
+// if(FC0013_Write(pTuner, 0x0C, 0xFC) != FC0013_I2C_SUCCESS) goto error_status; // Modified for up-dowm AGC by Realtek(for slave, and for 2832 mini dongle).
+
+// if(FC0013_Write(pTuner, 0x0D, 0x09) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x0D, 0x01) != FC0013_I2C_SUCCESS) goto error_status; // Modified for AGC non-forcing by Realtek.
+
+ if(FC0013_Write(pTuner, 0x0E, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x0F, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x10, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x11, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x12, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x13, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+
+ if(FC0013_Write(pTuner, 0x14, 0x50) != FC0013_I2C_SUCCESS) goto error_status; // DVB-T, High Gain
+// if(FC0013_Write(pTuner, 0x14, 0x48) != FC0013_I2C_SUCCESS) goto error_status; // DVB-T, Middle Gain
+// if(FC0013_Write(pTuner, 0x14, 0x40) != FC0013_I2C_SUCCESS) goto error_status; // DVB-T, Low Gain
+
+ if(FC0013_Write(pTuner, 0x15, 0x01) != FC0013_I2C_SUCCESS) goto error_status;
+
+
+ return FC0013_FUNCTION_SUCCESS;
+
+error_status:
+ return FC0013_FUNCTION_ERROR;
+}
+
+
+int FC0013_SetFrequency(unsigned long Frequency, unsigned short Bandwidth)
+{
+// bool VCO1 = false;
+// unsigned int doubleVCO;
+// unsigned short xin, xdiv;
+// unsigned char reg[21], am, pm, multi;
+ int VCO1 = FC0013_FALSE;
+ unsigned long doubleVCO;
+ unsigned short xin, xdiv;
+ unsigned char reg[21], am, pm, multi;
+
+ unsigned char read_byte;
+
+ unsigned long CrystalFreqKhz;
+
+ int pTuner =1;
+
+ int CrystalFreqHz = CRYSTAL_FREQ;
+
+ // Get tuner crystal frequency in KHz.
+ // Note: CrystalFreqKhz = round(CrystalFreqHz / 1000)
+ CrystalFreqKhz = (CrystalFreqHz + 500) / 1000;
+
+ // modified 2011-02-09: for D-Book test
+ // set VHF_Track = 7
+ if(FC0013_Read(pTuner, 0x1D, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+
+ // VHF Track: 7
+ if(FC0013_Write(pTuner, 0x1D, (read_byte & 0xE3) | 0x1C) != FC0013_I2C_SUCCESS) goto error_status;
+
+
+ if( Frequency < 300000 )
+ {
+ // Set VHF Track.
+ if(FC0013_SetVhfTrack(pTuner, Frequency) != FC0013_I2C_SUCCESS) goto error_status;
+
+ // Enable VHF filter.
+ if(FC0013_Read(pTuner, 0x07, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x07, read_byte | 0x10) != FC0013_I2C_SUCCESS) goto error_status;
+
+ // Disable UHF & disable GPS.
+ if(FC0013_Read(pTuner, 0x14, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x14, read_byte & 0x1F) != FC0013_I2C_SUCCESS) goto error_status;
+ }
+ else if ( (Frequency >= 300000) && (Frequency <= 862000) )
+ {
+ // Disable VHF filter.
+ if(FC0013_Read(pTuner, 0x07, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x07, read_byte & 0xEF) != FC0013_I2C_SUCCESS) goto error_status;
+
+ // enable UHF & disable GPS.
+ if(FC0013_Read(pTuner, 0x14, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x14, (read_byte & 0x1F) | 0x40) != FC0013_I2C_SUCCESS) goto error_status;
+ }
+ else if (Frequency > 862000)
+ {
+ // Disable VHF filter
+ if(FC0013_Read(pTuner, 0x07, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x07, read_byte & 0xEF) != FC0013_I2C_SUCCESS) goto error_status;
+
+ // Disable UHF & enable GPS
+ if(FC0013_Read(pTuner, 0x14, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x14, (read_byte & 0x1F) | 0x20) != FC0013_I2C_SUCCESS) goto error_status;
+ }
+
+ if (Frequency * 96 < 3560000)
+ {
+ multi = 96;
+ reg[5] = 0x82;
+ reg[6] = 0x00;
+ }
+ else if (Frequency * 64 < 3560000)
+ {
+ multi = 64;
+ reg[5] = 0x02;
+ reg[6] = 0x02;
+ }
+ else if (Frequency * 48 < 3560000)
+ {
+ multi = 48;
+ reg[5] = 0x42;
+ reg[6] = 0x00;
+ }
+ else if (Frequency * 32 < 3560000)
+ {
+ multi = 32;
+ reg[5] = 0x82;
+ reg[6] = 0x02;
+ }
+ else if (Frequency * 24 < 3560000)
+ {
+ multi = 24;
+ reg[5] = 0x22;
+ reg[6] = 0x00;
+ }
+ else if (Frequency * 16 < 3560000)
+ {
+ multi = 16;
+ reg[5] = 0x42;
+ reg[6] = 0x02;
+ }
+ else if (Frequency * 12 < 3560000)
+ {
+ multi = 12;
+ reg[5] = 0x12;
+ reg[6] = 0x00;
+ }
+ else if (Frequency * 8 < 3560000)
+ {
+ multi = 8;
+ reg[5] = 0x22;
+ reg[6] = 0x02;
+ }
+ else if (Frequency * 6 < 3560000)
+ {
+ multi = 6;
+ reg[5] = 0x0A;
+ reg[6] = 0x00;
+ }
+ else if (Frequency * 4 < 3800000)
+ {
+ multi = 4;
+ reg[5] = 0x12;
+ reg[6] = 0x02;
+ }
+ else
+ {
+ Frequency = Frequency / 2;
+ multi = 4;
+ reg[5] = 0x0A;
+ reg[6] = 0x02;
+ }
+
+ doubleVCO = Frequency * multi;
+
+ reg[6] = reg[6] | 0x08;
+// VCO1 = true;
+ VCO1 = FC0013_TRUE;
+
+ // Calculate VCO parameters: ap & pm & xin.
+// xdiv = (unsigned short)(doubleVCO / (Crystal_Frequency/2));
+ xdiv = (unsigned short)(doubleVCO / (CrystalFreqKhz/2));
+// if( (doubleVCO - xdiv * (Crystal_Frequency/2)) >= (Crystal_Frequency/4) )
+ if( (doubleVCO - xdiv * (CrystalFreqKhz/2)) >= (CrystalFreqKhz/4) )
+ {
+ xdiv = xdiv + 1;
+ }
+
+ pm = (unsigned char)( xdiv / 8 );
+ am = (unsigned char)( xdiv - (8 * pm));
+
+ if (am < 2)
+ {
+ reg[1] = am + 8;
+ reg[2] = pm - 1;
+ }
+ else
+ {
+ reg[1] = am;
+ reg[2] = pm;
+ }
+
+// xin = (unsigned short)(doubleVCO - ((unsigned short)(doubleVCO / (Crystal_Frequency/2))) * (Crystal_Frequency/2));
+ xin = (unsigned short)(doubleVCO - ((unsigned short)(doubleVCO / (CrystalFreqKhz/2))) * (CrystalFreqKhz/2));
+// xin = ((xin << 15)/(Crystal_Frequency/2));
+ xin = (unsigned short)((xin << 15)/(CrystalFreqKhz/2));
+
+// if( xin >= (unsigned short) pow( (double)2, (double)14) )
+// {
+// xin = xin + (unsigned short) pow( (double)2, (double)15);
+// }
+ if( xin >= (unsigned short) 16384 )
+ xin = xin + (unsigned short) 32768;
+
+ reg[3] = (unsigned char)(xin >> 8);
+ reg[4] = (unsigned char)(xin & 0x00FF);
+
+
+ //===================================== Only for testing
+// printf("Frequency: %d, Fa: %d, Fp: %d, Xin:%d \n", Frequency, am, pm, xin);
+
+
+ // Set Low-Pass Filter Bandwidth.
+ switch(Bandwidth)
+ {
+ case 6:
+ reg[6] = 0x80 | reg[6];
+ break;
+ case 7:
+ reg[6] = ~0x80 & reg[6];
+ reg[6] = 0x40 | reg[6];
+ break;
+ case 8:
+ default:
+ reg[6] = ~0xC0 & reg[6];
+ break;
+ }
+
+ reg[5] = reg[5] | 0x07;
+
+ if(FC0013_Write(pTuner, 0x01, reg[1]) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x02, reg[2]) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x03, reg[3]) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x04, reg[4]) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x05, reg[5]) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x06, reg[6]) != FC0013_I2C_SUCCESS) goto error_status;
+
+ if (multi == 64)
+ {
+// FC0013_Write(0x11, FC0013_Read(0x11) | 0x04);
+ if(FC0013_Read(pTuner, 0x11, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x11, read_byte | 0x04) != FC0013_I2C_SUCCESS) goto error_status;
+ }
+ else
+ {
+// FC0013_Write(0x11, FC0013_Read(0x11) & 0xFB);
+ if(FC0013_Read(pTuner, 0x11, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x11, read_byte & 0xFB) != FC0013_I2C_SUCCESS) goto error_status;
+ }
+
+ if(FC0013_Write(pTuner, 0x0E, 0x80) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x0E, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+
+ if(FC0013_Write(pTuner, 0x0E, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+// reg[14] = 0x3F & FC0013_Read(0x0E);
+ if(FC0013_Read(pTuner, 0x0E, &read_byte) != FC0013_I2C_SUCCESS) goto error_status;
+ reg[14] = 0x3F & read_byte;
+
+ if (VCO1)
+ {
+ if (reg[14] > 0x3C)
+ {
+ reg[6] = ~0x08 & reg[6];
+
+ if(FC0013_Write(pTuner, 0x06, reg[6]) != FC0013_I2C_SUCCESS) goto error_status;
+
+ if(FC0013_Write(pTuner, 0x0E, 0x80) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x0E, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+ }
+ }
+ else
+ {
+ if (reg[14] < 0x02)
+ {
+ reg[6] = 0x08 | reg[6];
+
+ if(FC0013_Write(pTuner, 0x06, reg[6]) != FC0013_I2C_SUCCESS) goto error_status;
+
+ if(FC0013_Write(pTuner, 0x0E, 0x80) != FC0013_I2C_SUCCESS) goto error_status;
+ if(FC0013_Write(pTuner, 0x0E, 0x00) != FC0013_I2C_SUCCESS) goto error_status;
+ }
+ }
+
+
+ return 1;
+
+error_status:
+ return 0;
+}
+
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