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Extract tuning code into separate .c/.h file.

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This commit is contained in:
Jared Boone
2013-09-07 22:30:13 -07:00
parent b5dc264d22
commit 14eba3d947
6 changed files with 159 additions and 95 deletions
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1
firmware/hackrf_usb/Makefile
View File

@ -24,6 +24,7 @@ BINARY = hackrf_usb
SRC = $(BINARY).c \
rf_path.c \
tuning.c \
usb.c \
usb_request.c \
usb_standard_request.c \

1
firmware/hackrf_usb/Makefile_rom_to_ram
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@ -24,6 +24,7 @@ BINARY = hackrf_usb_rom_to_ram
SRC = hackrf_usb.c \
rf_path.c \
tuning.c \
usb.c \
usb_request.c \
usb_standard_request.c \

96
firmware/hackrf_usb/hackrf_usb.c
View File

@ -46,6 +46,7 @@
#include "usb_standard_request.h"
#include "rf_path.h"
#include "tuning.h"
static volatile transceiver_mode_t transceiver_mode = TRANSCEIVER_MODE_OFF;
@ -81,101 +82,6 @@ typedef struct {
set_sample_r_params_t set_sample_r_params;
#define FREQ_ONE_MHZ (1000*1000)
#define MIN_LP_FREQ_MHZ (5)
#define MAX_LP_FREQ_MHZ (2300)
#define MIN_BYPASS_FREQ_MHZ (2300)
#define MAX_BYPASS_FREQ_MHZ (2700)
#define MIN_HP_FREQ_MHZ (2700)
#define MAX_HP_FREQ_MHZ (6800)
static uint32_t max2837_freq_nominal_hz=2600000000;
#define MAX2837_FREQ_NOMINAL_MHZ (max2837_freq_nominal_hz / FREQ_ONE_MHZ)
uint32_t freq_mhz_cache=100, freq_hz_cache=0;
/*
* Set freq/tuning between 5MHz to 6800 MHz (less than 16bits really used)
* hz between 0 to 999999 Hz (not checked)
* return false on error or true if success.
*/
bool set_freq(uint32_t freq_mhz, uint32_t freq_hz)
{
bool success;
uint32_t RFFC5071_freq_mhz;
uint32_t MAX2837_freq_hz;
uint32_t real_RFFC5071_freq_hz;
uint32_t tmp_hz;
success = true;
const max2837_mode_t prior_max2837_mode = max2837_mode();
max2837_mode_standby();
if(freq_mhz >= MIN_LP_FREQ_MHZ)
{
if(freq_mhz < MAX_LP_FREQ_MHZ)
{
RFFC5071_freq_mhz = MAX2837_FREQ_NOMINAL_MHZ - freq_mhz;
/* Set Freq and read real freq */
real_RFFC5071_freq_hz = rffc5071_set_frequency(RFFC5071_freq_mhz);
if(real_RFFC5071_freq_hz < RFFC5071_freq_mhz * FREQ_ONE_MHZ)
{
tmp_hz = -(RFFC5071_freq_mhz * FREQ_ONE_MHZ - real_RFFC5071_freq_hz);
}else
{
tmp_hz = (real_RFFC5071_freq_hz - RFFC5071_freq_mhz * FREQ_ONE_MHZ);
}
MAX2837_freq_hz = max2837_freq_nominal_hz + tmp_hz + freq_hz;
max2837_set_frequency(MAX2837_freq_hz);
rf_path_set_filter(RF_PATH_FILTER_LOW_PASS);
}else if( (freq_mhz >= MIN_BYPASS_FREQ_MHZ) && (freq_mhz < MAX_BYPASS_FREQ_MHZ) )
{
MAX2837_freq_hz = (freq_mhz * FREQ_ONE_MHZ) + freq_hz;
/* RFFC5071_freq_mhz <= not used in Bypass mode */
max2837_set_frequency(MAX2837_freq_hz);
rf_path_set_filter(RF_PATH_FILTER_BYPASS);
}else if( (freq_mhz >= MIN_HP_FREQ_MHZ) && (freq_mhz < MAX_HP_FREQ_MHZ) )
{
RFFC5071_freq_mhz = freq_mhz - MAX2837_FREQ_NOMINAL_MHZ;
/* Set Freq and read real freq */
real_RFFC5071_freq_hz = rffc5071_set_frequency(RFFC5071_freq_mhz);
if(real_RFFC5071_freq_hz < RFFC5071_freq_mhz * FREQ_ONE_MHZ)
{
tmp_hz = (RFFC5071_freq_mhz * FREQ_ONE_MHZ - real_RFFC5071_freq_hz);
}else
{
tmp_hz = -(real_RFFC5071_freq_hz - RFFC5071_freq_mhz * FREQ_ONE_MHZ);
}
MAX2837_freq_hz = max2837_freq_nominal_hz + tmp_hz + freq_hz;
max2837_set_frequency(MAX2837_freq_hz);
rf_path_set_filter(RF_PATH_FILTER_HIGH_PASS);
}else
{
/* Error freq_mhz too high */
success = false;
}
}else
{
/* Error freq_mhz too low */
success = false;
}
max2837_set_mode(prior_max2837_mode);
freq_mhz_cache = freq_mhz;
freq_hz_cache = freq_hz;
return success;
}
bool set_freq_if(const uint32_t freq_if_hz) {
bool success = false;
if( (freq_if_hz >= MIN_BYPASS_FREQ_MHZ) && (freq_if_hz <= MAX_BYPASS_FREQ_MHZ) ) {
max2837_freq_nominal_hz = freq_if_hz;
success = set_freq(freq_mhz_cache, freq_hz_cache);
}
return success;
}
static void usb_init_buffers_bulk() {
usb_td_bulk[0].next_dtd_pointer = USB_TD_NEXT_DTD_POINTER_TERMINATE;
usb_td_bulk[0].total_bytes

123
firmware/hackrf_usb/tuning.c Normal file
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@ -0,0 +1,123 @@
/*
* Copyright 2012 Jared Boone
* Copyright 2013 Benjamin Vernoux
*
* This file is part of HackRF.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "tuning.h"
#include <rffc5071.h>
#include <max2837.h>
#include "rf_path.h"
#define FREQ_ONE_MHZ (1000*1000)
#define MIN_LP_FREQ_MHZ (5)
#define MAX_LP_FREQ_MHZ (2300)
#define MIN_BYPASS_FREQ_MHZ (2300)
#define MAX_BYPASS_FREQ_MHZ (2700)
#define MIN_HP_FREQ_MHZ (2700)
#define MAX_HP_FREQ_MHZ (6800)
static uint32_t max2837_freq_nominal_hz=2600000000;
#define MAX2837_FREQ_NOMINAL_MHZ (max2837_freq_nominal_hz / FREQ_ONE_MHZ)
uint32_t freq_mhz_cache=100, freq_hz_cache=0;
/*
* Set freq/tuning between 5MHz to 6800 MHz (less than 16bits really used)
* hz between 0 to 999999 Hz (not checked)
* return false on error or true if success.
*/
bool set_freq(uint32_t freq_mhz, uint32_t freq_hz)
{
bool success;
uint32_t RFFC5071_freq_mhz;
uint32_t MAX2837_freq_hz;
uint32_t real_RFFC5071_freq_hz;
uint32_t tmp_hz;
success = true;
const max2837_mode_t prior_max2837_mode = max2837_mode();
max2837_mode_standby();
if(freq_mhz >= MIN_LP_FREQ_MHZ)
{
if(freq_mhz < MAX_LP_FREQ_MHZ)
{
RFFC5071_freq_mhz = MAX2837_FREQ_NOMINAL_MHZ - freq_mhz;
/* Set Freq and read real freq */
real_RFFC5071_freq_hz = rffc5071_set_frequency(RFFC5071_freq_mhz);
if(real_RFFC5071_freq_hz < RFFC5071_freq_mhz * FREQ_ONE_MHZ)
{
tmp_hz = -(RFFC5071_freq_mhz * FREQ_ONE_MHZ - real_RFFC5071_freq_hz);
}else
{
tmp_hz = (real_RFFC5071_freq_hz - RFFC5071_freq_mhz * FREQ_ONE_MHZ);
}
MAX2837_freq_hz = max2837_freq_nominal_hz + tmp_hz + freq_hz;
max2837_set_frequency(MAX2837_freq_hz);
rf_path_set_filter(RF_PATH_FILTER_LOW_PASS);
}else if( (freq_mhz >= MIN_BYPASS_FREQ_MHZ) && (freq_mhz < MAX_BYPASS_FREQ_MHZ) )
{
MAX2837_freq_hz = (freq_mhz * FREQ_ONE_MHZ) + freq_hz;
/* RFFC5071_freq_mhz <= not used in Bypass mode */
max2837_set_frequency(MAX2837_freq_hz);
rf_path_set_filter(RF_PATH_FILTER_BYPASS);
}else if( (freq_mhz >= MIN_HP_FREQ_MHZ) && (freq_mhz < MAX_HP_FREQ_MHZ) )
{
RFFC5071_freq_mhz = freq_mhz - MAX2837_FREQ_NOMINAL_MHZ;
/* Set Freq and read real freq */
real_RFFC5071_freq_hz = rffc5071_set_frequency(RFFC5071_freq_mhz);
if(real_RFFC5071_freq_hz < RFFC5071_freq_mhz * FREQ_ONE_MHZ)
{
tmp_hz = (RFFC5071_freq_mhz * FREQ_ONE_MHZ - real_RFFC5071_freq_hz);
}else
{
tmp_hz = -(real_RFFC5071_freq_hz - RFFC5071_freq_mhz * FREQ_ONE_MHZ);
}
MAX2837_freq_hz = max2837_freq_nominal_hz + tmp_hz + freq_hz;
max2837_set_frequency(MAX2837_freq_hz);
rf_path_set_filter(RF_PATH_FILTER_HIGH_PASS);
}else
{
/* Error freq_mhz too high */
success = false;
}
}else
{
/* Error freq_mhz too low */
success = false;
}
max2837_set_mode(prior_max2837_mode);
freq_mhz_cache = freq_mhz;
freq_hz_cache = freq_hz;
return success;
}
bool set_freq_if(const uint32_t freq_if_hz) {
bool success = false;
if( (freq_if_hz >= MIN_BYPASS_FREQ_MHZ) && (freq_if_hz <= MAX_BYPASS_FREQ_MHZ) ) {
max2837_freq_nominal_hz = freq_if_hz;
success = set_freq(freq_mhz_cache, freq_hz_cache);
}
return success;
}

32
firmware/hackrf_usb/tuning.h Normal file
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@ -0,0 +1,32 @@
/*
* Copyright 2012 Jared Boone
* Copyright 2013 Benjamin Vernoux
*
* This file is part of HackRF.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __TUNING_H__
#define __TUNING_H__
#include <stdint.h>
#include <stdbool.h>
bool set_freq(uint32_t freq_mhz, uint32_t freq_hz);
bool set_freq_if(const uint32_t freq_if_hz);
#endif/*__TUNING_H__*/

1
firmware/hackrf_usb_rom_to_ram/Makefile
View File

@ -26,6 +26,7 @@ SRC_DIR = hackrf_usb
SRC = hackrf_usb.c \
rf_path.c \
tuning.c \
usb.c \
usb_request.c \
usb_standard_request.c \