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#include "lms7002m_controls.h"
#include "spi.h"
#include "LMS7002M_parameters_compact.h"
#include "typedefs.h"
#include "mcu_defines.h"
#include "lms7002m_calibrations.h"
#include <math.h>
#ifdef __cplusplus
bool hasStopped = false;
bool stopProcedure = false;
#else
extern bool hasStopped;
extern bool stopProcedure;
#endif
static uint16_t ROM stateAddresses[] = {0x0081, 0x010F, 0x0126, 0x040A, 0x040C};
//double space to store both channels
static uint16_t xdata stateStorage[2*sizeof(stateAddresses)/sizeof(uint16_t)];
static void StoreState(bool write)
{
uint16_t x0020 = SPI_read(0x0020);
uint8_t storageIndex = 0;
uint8_t ch;
for(ch = 2; ch>0; --ch)
{
uint8_t i = 0;
SPI_write(0x0020, (x0020 & 0xFFFC) | i);
for(; i < sizeof(stateAddresses)/sizeof(uint16_t); ++i)
{
if(write)
SPI_write(stateAddresses[i], stateStorage[storageIndex]);
else
stateStorage[storageIndex] = SPI_read(stateAddresses[i]);
++storageIndex;
}
}
SPI_write(0x0020, x0020);
}
#define TABLE_ENTRY(gain_setting, gainLNA, gainPGA) (gainPGA << 4 | gainLNA)
#define GET_PGA_GAIN(value) ((value >> 4) & 0x1F)
#define GET_LNA_GAIN(value) ((value) & 0xF)
static ROM const uint16_t AGC_gain_table[] = {
TABLE_ENTRY(-12,1,0),
TABLE_ENTRY(-11,1,1),
TABLE_ENTRY(-10,1,2),
TABLE_ENTRY(-9,2,0),
TABLE_ENTRY(-8,2,1),
TABLE_ENTRY(-7,2,2),
TABLE_ENTRY(-6,2,3),
TABLE_ENTRY(-5,3,1),
TABLE_ENTRY(-4,3,2),
TABLE_ENTRY(-3,3,3),
TABLE_ENTRY(-2,3,4),
TABLE_ENTRY(-1,4,2),
TABLE_ENTRY(0,4,3),
TABLE_ENTRY(1,4,4),
TABLE_ENTRY(2,4,5),
TABLE_ENTRY(3,5,3),
TABLE_ENTRY(4,5,4),
TABLE_ENTRY(5,5,5),
TABLE_ENTRY(6,5,6),
TABLE_ENTRY(7,6,4),
TABLE_ENTRY(8,6,5),
TABLE_ENTRY(9,6,6),
TABLE_ENTRY(10,6,7),
TABLE_ENTRY(11,7,5),
TABLE_ENTRY(12,7,6),
TABLE_ENTRY(13,7,7),
TABLE_ENTRY(14,7,8),
TABLE_ENTRY(15,8,6),
TABLE_ENTRY(16,8,7),
TABLE_ENTRY(17,8,8),
TABLE_ENTRY(18,8,9),
TABLE_ENTRY(19,9,7),
TABLE_ENTRY(20,9,8),
TABLE_ENTRY(21,9,9),
TABLE_ENTRY(22,9,10),
TABLE_ENTRY(23,10,10),
TABLE_ENTRY(24,10,11),
TABLE_ENTRY(25,10,12),
TABLE_ENTRY(26,10,13),
TABLE_ENTRY(27,11,13),
TABLE_ENTRY(28,11,14),
TABLE_ENTRY(29,11,15),
TABLE_ENTRY(30,11,16),
TABLE_ENTRY(31,11,17),
TABLE_ENTRY(32,11,18),
TABLE_ENTRY(33,11,19),
TABLE_ENTRY(34,11,20),
TABLE_ENTRY(35,11,21),
TABLE_ENTRY(36,11,22),
TABLE_ENTRY(37,11,23),
TABLE_ENTRY(38,11,24),
TABLE_ENTRY(39,11,25),
TABLE_ENTRY(40,11,26),
TABLE_ENTRY(41,11,27),
TABLE_ENTRY(42,11,28),
TABLE_ENTRY(43,11,29),
TABLE_ENTRY(44,11,30),
TABLE_ENTRY(45,11,31),
TABLE_ENTRY(46,12,31),
TABLE_ENTRY(47,13,31),
TABLE_ENTRY(48,14,31),
TABLE_ENTRY(49,15,31)
};
uint8_t RunAGC(uint32_t wantedRSSI)
{
xdata uint32_t lastRSSI[2];
uint16_t x0400[2];
uint8_t status;
uint8_t gainLNA[2];
uint8_t gainPGA[2];
uint8_t ch;
uint16_t x0020 = SPI_read(0x0020);
gainLNA[1] = gainLNA[0] = 11;
gainPGA[1] = gainPGA[0] = 31;
hasStopped = false;
StoreState(false);
//Setup
if(Get_SPI_Reg_bits(TRX_GAIN_SRC) == false)
{
for(ch=0; ch<2; ++ch)
{
SPI_write(0x0020, (x0020 & 0xFFFC) | (ch+1));
Modify_SPI_Reg_bits(CG_IAMP_TBB_R3, Get_SPI_Reg_bits(CG_IAMP_TBB));
Modify_SPI_Reg_bits(LOSS_LIN_TXPAD_TRF_R3, Get_SPI_Reg_bits(LOSS_LIN_TXPAD_TRF));
Modify_SPI_Reg_bits(LOSS_MAIN_TXPAD_TRF_R3, Get_SPI_Reg_bits(LOSS_MAIN_TXPAD_TRF));
}
}
Modify_SPI_Reg_bits(TRX_GAIN_SRC, 1);
for(ch=0; ch<2; ++ch)
{
SPI_write(0x0020, (x0020 & 0xFFFC) | (ch+1));
Modify_SPI_Reg_bits(ICT_TIAMAIN_RFE, 31);
Modify_SPI_Reg_bits(ICT_TIAOUT_RFE, 4);
//C_CTL_PGA_RBB 0, TIA 2
SPI_write(0x0126, (gainPGA[ch] << 6) | (gainLNA[ch] << 2) | 2);
status = CalibrateRx(false, false);
//if(status != MCU_NO_ERROR)
//goto AGC_END;
//Modify_SPI_Reg_bits(AGC_MODE_RXTSP, 1);
//Modify_SPI_Reg_bits(AGC_AVG_RXTSP, 0);
SPI_write(0x040A, 0x1000);
Modify_SPI_Reg_bits(AGC_BYP_RXTSP, 0);
if(Get_SPI_Reg_bits(CMIX_BYP_RXTSP) == 0)
{
Modify_SPI_Reg_bits(CMIX_GAIN_RXTSP, 1);
Modify_SPI_Reg_bits(CMIX_GAIN_RXTSP_R3, 0);
}
x0400[ch] = SPI_read(0x0400) & ~0xF000; //CAPTURE 0, CAPSEL 0
}
UpdateRSSIDelay();
while(!stopProcedure)
{
//Need to wait only
for(ch=0; ch<2; ++ch)
{
float dBdiff;
uint8_t LNA_gain_available;
uint32_t rssi;
bool needUpdate = false;
SPI_write(0x0020, (x0020 & 0xFFFC) | (ch+1));
//CAPTURE RSSI
SPI_write(0x0400, x0400[ch]);
SPI_write(0x0400, x0400[ch] | 0x8000);
rssi = SPI_read(0x040F);
rssi = (rssi << 2 | (SPI_read(0x040E) & 0x3));
if(rssi == lastRSSI[ch] || rssi == 0)
continue;
lastRSSI[ch] = rssi;
if(gainLNA[ch] <= 9)
LNA_gain_available = 3*(11-gainLNA[ch]); //G_LNA=0 not allowed
else
LNA_gain_available = 15-gainLNA[ch];
dBdiff = 20*log10((float)wantedRSSI/rssi);
if (dBdiff < 0 && rssi > 0x14000)
{
gainPGA[ch] = clamp(gainPGA[ch] - 12, 0, 31);
gainLNA[ch] = clamp(gainLNA[ch] - 3, 0, 15);
needUpdate = true;
}
else if(dBdiff < 0 || (dBdiff > 0 && LNA_gain_available+31-gainPGA[ch] > 0))
{
int8_t total_gain_current = 30-LNA_gain_available + gainPGA[ch];
const uint16_t gains = AGC_gain_table[clamp(total_gain_current+dBdiff, 0, 61)];
uint8_t newLNA = GET_LNA_GAIN(gains);
uint8_t newPGA = GET_PGA_GAIN(gains);
if(newPGA != gainPGA[ch] || newLNA != gainLNA[ch])
{
gainLNA[ch] = GET_LNA_GAIN(gains);
gainPGA[ch] = GET_PGA_GAIN(gains);
needUpdate = true;
}
}
if(needUpdate)
{
uint16_t reg126;
//set C_CTL_PGA_RBB
reg126 = GetValueOf_c_ctl_pga_rbb(gainPGA[ch]) << 11;
SPI_write(0x0126, reg126 | (gainPGA[ch] << 6) | (gainLNA[ch] << 2) | 2);
}
}
}
StoreState(true);
SPI_write(0x0020, x0020);
ClockLogicResets();
hasStopped = true;
return status;
}
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