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Universalize: tuning.{c,h}, tune_config.h

Browse source 
Co-authored-by: Antoine van Gelder <antoine@greatscottgadgets.com>
This commit is contained in:
Martin Ling 2026-04-04 00:51:41 +01:00
parent 3aaa7185bd
commit 275b75fc85
4 changed files with 27 additions and 18 deletions
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2
firmware/common/tune_config.h
View file

@ -21,7 +21,7 @@
#pragma once
#ifdef PRALINE
#if defined(PRALINE) || defined(UNIVERSAL)
#include "fpga.h"
typedef struct {

37
firmware/common/tuning.c
View file

@ -29,18 +29,23 @@
#define MIN(x, y) ((x) < (y) ? (x) : (y))
#define MAX(x, y) ((x) > (y) ? (x) : (y))
#ifdef PRALINE
#define MIN_BYPASS_FREQ FP_MHZ(2320)
#define MAX_BYPASS_FREQ FP_MHZ(2580)
#else
#define MIN_BYPASS_FREQ FP_MHZ(2170)
#define MAX_BYPASS_FREQ FP_MHZ(2740)
#endif
#define MID1_HP_FREQ FP_MHZ(3600)
#define MID2_HP_FREQ FP_MHZ(5100)
#define MAX_HP_FREQ FP_MHZ(7250)
static fp_40_24_t min_bypass_freq = FP_MHZ(2170);
static fp_40_24_t max_bypass_freq = FP_MHZ(2740);
void tuning_setup(void)
{
#if defined(PRALINE) || defined(UNIVERSAL)
if (detected_platform() == BOARD_ID_PRALINE) {
min_bypass_freq = FP_MHZ(2320);
max_bypass_freq = FP_MHZ(2580);
}
#endif
}
fp_40_24_t select_graduated_if(fp_40_24_t freq_rf, rf_path_filter_t img_reject)
{
fp_40_24_t freq_if;
@ -57,8 +62,8 @@ fp_40_24_t select_graduated_if(fp_40_24_t freq_rf, rf_path_filter_t img_reject)
case RF_PATH_FILTER_HIGH_PASS:
if (freq_rf < MID1_HP_FREQ) {
/* IF is graduated from 2170 MHz to 2740 MHz */
freq_if = MIN_BYPASS_FREQ +
(((freq_rf - (MAX_BYPASS_FREQ)) * 57) / 86);
freq_if = min_bypass_freq +
(((freq_rf - (max_bypass_freq)) * 57) / 86);
} else if (freq_rf < MID2_HP_FREQ) {
/* IF is graduated from 2350 MHz to 2650 MHz */
freq_if = FP_MHZ(2350) + ((freq_rf - (MID1_HP_FREQ)) / 5);
@ -75,9 +80,9 @@ fp_40_24_t select_graduated_if(fp_40_24_t freq_rf, rf_path_filter_t img_reject)
rf_path_filter_t select_img_reject(fp_40_24_t freq_rf)
{
if (freq_rf > MAX_BYPASS_FREQ) {
if (freq_rf > max_bypass_freq) {
return RF_PATH_FILTER_HIGH_PASS;
} else if (freq_rf >= MIN_BYPASS_FREQ) {
} else if (freq_rf >= min_bypass_freq) {
return RF_PATH_FILTER_BYPASS;
} else {
return RF_PATH_FILTER_LOW_PASS;
@ -91,14 +96,14 @@ fp_40_24_t restrict_rf(fp_40_24_t freq_rf, rf_path_filter_t img_reject)
switch (img_reject) {
case RF_PATH_FILTER_LOW_PASS:
max_rf = MIN_BYPASS_FREQ;
max_rf = min_bypass_freq;
break;
case RF_PATH_FILTER_HIGH_PASS:
min_rf = MAX_BYPASS_FREQ;
min_rf = max_bypass_freq;
break;
default:
min_rf = MIN_BYPASS_FREQ;
max_rf = MAX_BYPASS_FREQ;
min_rf = min_bypass_freq;
max_rf = max_bypass_freq;
}
freq_rf = MIN(freq_rf, max_rf);
freq_rf = MAX(freq_rf, min_rf);

2
firmware/common/tuning.h
View file

@ -26,6 +26,8 @@
#include "fixed_point.h"
#include "rf_path.h"
void tuning_setup(void);
/**
* Select fixed or graduated IF for a given RF and image reject filter.
*/

4
firmware/hackrf_usb/hackrf_usb.c
View file

@ -40,8 +40,9 @@
#include <rf_path.h>
#include <rom_iap.h>
#include <selftest.h>
#include <transceiver_mode.h>
#include <sgpio.h>
#include <transceiver_mode.h>
#include <tuning.h>
#include <usb.h>
#include <usb_queue.h>
#include <usb_request.h>
@ -463,6 +464,7 @@ int main(void)
clock_gen_init();
#endif
#endif
tuning_setup();
#ifdef HACKRF_ONE
// Set up mixer before enabling RF power, because its
// GPO is used to control the antenna bias tee.