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/*
* Copyright 2023 Jonathan Suite (GitHub: @ai6aj)
*
* 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 "user_config.h"
static user_config_user_opt_t user_direction_rx_bias_t_opts = RF_DIRECTION_USER_OPT_NOP;
static user_config_user_opt_t user_direction_tx_bias_t_opts = RF_DIRECTION_USER_OPT_NOP;
static user_config_user_opt_t user_direction_off_bias_t_opts =
RF_DIRECTION_USER_OPT_CLEAR;
// Perform user-specified actions to Bias T power when transitioning modes
static void _rf_path_handle_user_bias_t_action(rf_path_t* const rf_path, int action)
{
switch (action) {
case RF_DIRECTION_USER_OPT_SET:
rf_path_set_antenna(rf_path, 1);
break;
case RF_DIRECTION_USER_OPT_CLEAR:
rf_path_set_antenna(rf_path, 0);
break;
case RF_DIRECTION_USER_OPT_NOP:
default:
break;
}
}
void user_config_on_rf_path_direction_change(
rf_path_t* const rf_path,
const rf_path_direction_t direction)
{
switch (direction) {
case RF_PATH_DIRECTION_RX:
_rf_path_handle_user_bias_t_action(rf_path, user_direction_rx_bias_t_opts);
break;
case RF_PATH_DIRECTION_TX:
_rf_path_handle_user_bias_t_action(rf_path, user_direction_tx_bias_t_opts);
break;
case RF_PATH_DIRECTION_OFF:
default:
_rf_path_handle_user_bias_t_action(
rf_path,
user_direction_off_bias_t_opts);
break;
}
}
void user_config_set_bias_t_opt(
const rf_path_direction_t direction,
const user_config_user_opt_t option)
{
switch (direction) {
case RF_PATH_DIRECTION_RX:
user_direction_rx_bias_t_opts = option;
break;
case RF_PATH_DIRECTION_TX:
user_direction_tx_bias_t_opts = option;
break;
case RF_PATH_DIRECTION_OFF:
user_direction_off_bias_t_opts = option;
break;
default:
break;
}
}
/*
Bias T options are set as follows:
Bits 0,1: One of NOP (0), CLEAR (0b10), or SET (0b11)
Bit 2: 1=Set OFF behavior according to bits 0,1 0=Don't change
Bits 3,4: One of NOP (0), CLEAR (0b10), or SET (0b11)
Bit 5: 1=Set RX behavior according to bits 0,1 0=Don't change
Bits 6,7: One of NOP (0), CLEAR (0b10), or SET (0b11)
Bit 8: 1=Set TX behavior according to bits 0,1 0=Don't change
Bits 9-15: Ignored; set to 0
*/
void user_config_set_bias_t_opts(uint16_t value)
{
if (value & 0x4) {
user_config_set_bias_t_opt(RF_PATH_DIRECTION_OFF, value & 0x3);
}
if (value & 0x20) {
user_config_set_bias_t_opt(RF_PATH_DIRECTION_RX, (value & 0x18) >> 3);
}
if (value & 0x100) {
user_config_set_bias_t_opt(RF_PATH_DIRECTION_TX, (value & 0xC0) >> 6);
}
}
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