HackRF-Treasure-Chest/Software/portapack-mayhem/hackrf/firmware/common/rf_path.c
2022-09-22 09:26:57 -07:00

455 lines
15 KiB
C

/*
* 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 "rf_path.h"
#include <libopencm3/lpc43xx/scu.h>
#include <hackrf_core.h>
#include "hackrf_ui.h"
#include <mixer.h>
#include <max2837.h>
#include <max5864.h>
#include <sgpio.h>
#if (defined JAWBREAKER || defined HACKRF_ONE || defined RAD1O)
/*
* RF switches on Jawbreaker are controlled by General Purpose Outputs (GPO) on
* the RFFC5072.
*
* On HackRF One, the same signals are controlled by GPIO on the LPC.
* SWITCHCTRL_NO_TX_AMP_PWR and SWITCHCTRL_NO_RX_AMP_PWR are not normally used
* on HackRF One as the amplifier power is instead controlled only by
* SWITCHCTRL_AMP_BYPASS.
*
* The rad1o also uses GPIO pins to control the different switches. The amplifiers
* are also connected to the LPC.
*/
#define SWITCHCTRL_NO_TX_AMP_PWR (1 << 0) /* GPO1 turn off TX amp power */
#define SWITCHCTRL_AMP_BYPASS (1 << 1) /* GPO2 bypass amp section */
#define SWITCHCTRL_TX (1 << 2) /* GPO3 1 for TX mode, 0 for RX mode */
#define SWITCHCTRL_MIX_BYPASS (1 << 3) /* GPO4 bypass RFFC5072 mixer section */
#define SWITCHCTRL_HP (1 << 4) /* GPO5 1 for high-pass, 0 for low-pass */
#define SWITCHCTRL_NO_RX_AMP_PWR (1 << 5) /* GPO6 turn off RX amp power */
/*
GPO6 GPO5 GPO4 GPO3 GPO2 GPO1
!RXAMP HP MIXBP TX AMPBP !TXAMP Mix mode Amp mode
1 X 1 1 1 1 TX bypass Bypass
1 X 1 1 0 0 TX bypass TX amplified
1 1 0 1 1 1 TX high Bypass
1 1 0 1 0 0 TX high TX amplified
1 0 0 1 1 1 TX low Bypass
1 0 0 1 0 0 TX low TX amplified
1 X 1 0 1 1 RX bypass Bypass
0 X 1 0 0 1 RX bypass RX amplified
1 1 0 0 1 1 RX high Bypass
0 1 0 0 0 1 RX high RX amplified
1 0 0 0 1 1 RX low Bypass
0 0 0 0 0 1 RX low RX amplified
*/
/*
* Safe (initial) switch settings turn off both amplifiers and enable both amp
* bypass and mixer bypass.
*/
#define SWITCHCTRL_SAFE (SWITCHCTRL_NO_TX_AMP_PWR | SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_TX | SWITCHCTRL_MIX_BYPASS | SWITCHCTRL_HP | SWITCHCTRL_NO_RX_AMP_PWR)
#endif
uint8_t switchctrl = SWITCHCTRL_SAFE;
/*
* Antenna port power on HackRF One is controlled by GPO1 on the RFFC5072.
* This is the only thing we use RFFC5072 GPO for on HackRF One. The value of
* SWITCHCTRL_NO_ANT_PWR does not correspond to the GPO1 bit in the gpo
* register.
*/
#define SWITCHCTRL_ANT_PWR (1 << 6) /* turn on antenna port power */
#ifdef HACKRF_ONE
static void switchctrl_set_hackrf_one(rf_path_t* const rf_path, uint8_t ctrl) {
if (ctrl & SWITCHCTRL_TX) {
gpio_set(rf_path->gpio_tx);
gpio_clear(rf_path->gpio_rx);
} else {
gpio_clear(rf_path->gpio_tx);
gpio_set(rf_path->gpio_rx);
}
if (ctrl & SWITCHCTRL_MIX_BYPASS) {
gpio_set(rf_path->gpio_mix_bypass);
gpio_clear(rf_path->gpio_no_mix_bypass);
if (ctrl & SWITCHCTRL_TX) {
gpio_set(rf_path->gpio_tx_mix_bp);
gpio_clear(rf_path->gpio_rx_mix_bp);
} else {
gpio_clear(rf_path->gpio_tx_mix_bp);
gpio_set(rf_path->gpio_rx_mix_bp);
}
} else {
gpio_clear(rf_path->gpio_mix_bypass);
gpio_set(rf_path->gpio_no_mix_bypass);
gpio_clear(rf_path->gpio_tx_mix_bp);
gpio_clear(rf_path->gpio_rx_mix_bp);
}
if (ctrl & SWITCHCTRL_HP) {
gpio_set(rf_path->gpio_hp);
gpio_clear(rf_path->gpio_lp);
} else {
gpio_clear(rf_path->gpio_hp);
gpio_set(rf_path->gpio_lp);
}
if (ctrl & SWITCHCTRL_AMP_BYPASS) {
gpio_set(rf_path->gpio_amp_bypass);
gpio_clear(rf_path->gpio_tx_amp);
gpio_set(rf_path->gpio_no_tx_amp_pwr);
gpio_clear(rf_path->gpio_rx_amp);
gpio_set(rf_path->gpio_no_rx_amp_pwr);
} else if (ctrl & SWITCHCTRL_TX) {
gpio_clear(rf_path->gpio_amp_bypass);
gpio_set(rf_path->gpio_tx_amp);
gpio_clear(rf_path->gpio_no_tx_amp_pwr);
gpio_clear(rf_path->gpio_rx_amp);
gpio_set(rf_path->gpio_no_rx_amp_pwr);
} else {
gpio_clear(rf_path->gpio_amp_bypass);
gpio_clear(rf_path->gpio_tx_amp);
gpio_set(rf_path->gpio_no_tx_amp_pwr);
gpio_set(rf_path->gpio_rx_amp);
gpio_clear(rf_path->gpio_no_rx_amp_pwr);
}
/*
* These normally shouldn't be set post-Jawbreaker, but they can be
* used to explicitly turn off power to the amplifiers while AMP_BYPASS
* is unset:
*/
if (ctrl & SWITCHCTRL_NO_TX_AMP_PWR)
gpio_set(rf_path->gpio_no_tx_amp_pwr);
if (ctrl & SWITCHCTRL_NO_RX_AMP_PWR)
gpio_set(rf_path->gpio_no_rx_amp_pwr);
if (ctrl & SWITCHCTRL_ANT_PWR) {
mixer_set_gpo(&mixer, 0x00); /* turn on antenna power by clearing GPO1 */
} else {
mixer_set_gpo(&mixer, 0x01); /* turn off antenna power by setting GPO1 */
}
}
#endif
#ifdef RAD1O
static void switchctrl_set_rad1o(rf_path_t* const rf_path, uint8_t ctrl) {
if (ctrl & SWITCHCTRL_TX) {
gpio_set(rf_path->gpio_tx_rx_n);
gpio_clear(rf_path->gpio_tx_rx);
} else {
gpio_clear(rf_path->gpio_tx_rx_n);
gpio_set(rf_path->gpio_tx_rx);
}
if (ctrl & SWITCHCTRL_MIX_BYPASS) {
gpio_clear(rf_path->gpio_by_mix);
gpio_set(rf_path->gpio_by_mix_n);
gpio_clear(rf_path->gpio_mixer_en);
} else {
gpio_set(rf_path->gpio_by_mix);
gpio_clear(rf_path->gpio_by_mix_n);
gpio_set(rf_path->gpio_mixer_en);
}
if (ctrl & SWITCHCTRL_HP) {
gpio_set(rf_path->gpio_low_high_filt);
gpio_clear(rf_path->gpio_low_high_filt_n);
} else {
gpio_clear(rf_path->gpio_low_high_filt);
gpio_set(rf_path->gpio_low_high_filt_n);
}
if (ctrl & SWITCHCTRL_AMP_BYPASS) {
gpio_clear(rf_path->gpio_by_amp);
gpio_set(rf_path->gpio_by_amp_n);
gpio_clear(rf_path->gpio_tx_amp);
gpio_clear(rf_path->gpio_rx_lna);
} else if (ctrl & SWITCHCTRL_TX) {
gpio_set(rf_path->gpio_by_amp);
gpio_clear(rf_path->gpio_by_amp_n);
gpio_set(rf_path->gpio_tx_amp);
gpio_clear(rf_path->gpio_rx_lna);
} else {
gpio_set(rf_path->gpio_by_amp);
gpio_clear(rf_path->gpio_by_amp_n);
gpio_clear(rf_path->gpio_tx_amp);
gpio_set(rf_path->gpio_rx_lna);
}
/*
* These normally shouldn't be set post-Jawbreaker, but they can be
* used to explicitly turn off power to the amplifiers while AMP_BYPASS
* is unset:
*/
if (ctrl & SWITCHCTRL_NO_TX_AMP_PWR) {
gpio_clear(rf_path->gpio_tx_amp);
}
if (ctrl & SWITCHCTRL_NO_RX_AMP_PWR) {
gpio_clear(rf_path->gpio_rx_lna);
}
}
#endif
static void switchctrl_set(rf_path_t* const rf_path, const uint8_t gpo) {
#ifdef JAWBREAKER
(void) rf_path; /* silence unused param warning */
mixer_set_gpo(&mixer, gpo);
#elif HACKRF_ONE
switchctrl_set_hackrf_one(rf_path, gpo);
#elif RAD1O
switchctrl_set_rad1o(rf_path, gpo);
#else
(void)gpo;
#endif
}
void rf_path_pin_setup(rf_path_t* const rf_path) {
#ifdef HACKRF_ONE
/* Configure RF switch control signals */
scu_pinmux(SCU_HP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_LP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_TX_MIX_BP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_NO_MIX_BYPASS, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_RX_MIX_BP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_TX_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_TX, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_MIX_BYPASS, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_RX, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_NO_TX_AMP_PWR, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_AMP_BYPASS, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_RX_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_NO_RX_AMP_PWR, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
/* Configure RF power supply (VAA) switch */
scu_pinmux(SCU_NO_VAA_ENABLE, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
/* Configure RF switch control signals as outputs */
gpio_output(rf_path->gpio_amp_bypass);
gpio_output(rf_path->gpio_no_mix_bypass);
gpio_output(rf_path->gpio_rx_amp);
gpio_output(rf_path->gpio_no_rx_amp_pwr);
gpio_output(rf_path->gpio_hp);
gpio_output(rf_path->gpio_lp);
gpio_output(rf_path->gpio_tx_mix_bp);
gpio_output(rf_path->gpio_rx_mix_bp);
gpio_output(rf_path->gpio_tx_amp);
gpio_output(rf_path->gpio_no_tx_amp_pwr);
gpio_output(rf_path->gpio_tx);
gpio_output(rf_path->gpio_mix_bypass);
gpio_output(rf_path->gpio_rx);
/*
* Safe (initial) switch settings turn off both amplifiers and antenna port
* power and enable both amp bypass and mixer bypass.
*/
switchctrl_set(rf_path, SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_MIX_BYPASS);
#elif RAD1O
/* Configure RF switch control signals */
scu_pinmux(SCU_BY_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_BY_AMP_N, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_TX_RX, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_TX_RX_N, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_BY_MIX, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_BY_MIX_N, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_LOW_HIGH_FILT, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_LOW_HIGH_FILT_N,SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_TX_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_RX_LNA, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_MIXER_EN, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
/* Configure RF power supply (VAA) switch */
scu_pinmux(SCU_VAA_ENABLE, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
/* Configure RF switch control signals as outputs */
gpio_output(rf_path->gpio_tx_rx_n);
gpio_output(rf_path->gpio_tx_rx);
gpio_output(rf_path->gpio_by_mix);
gpio_output(rf_path->gpio_by_mix_n);
gpio_output(rf_path->gpio_by_amp);
gpio_output(rf_path->gpio_by_amp_n);
gpio_output(rf_path->gpio_mixer_en);
gpio_output(rf_path->gpio_low_high_filt);
gpio_output(rf_path->gpio_low_high_filt_n);
gpio_output(rf_path->gpio_tx_amp);
gpio_output(rf_path->gpio_rx_lna);
/*
* Safe (initial) switch settings turn off both amplifiers and antenna port
* power and enable both amp bypass and mixer bypass.
*/
switchctrl_set(rf_path, SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_MIX_BYPASS);
#else
(void) rf_path; /* silence unused param warning */
#endif
}
void rf_path_init(rf_path_t* const rf_path) {
ssp1_set_mode_max5864();
max5864_setup(&max5864);
max5864_shutdown(&max5864);
ssp1_set_mode_max2837();
max2837_setup(&max2837);
max2837_start(&max2837);
mixer_setup(&mixer);
switchctrl_set(rf_path, switchctrl);
}
void rf_path_set_direction(rf_path_t* const rf_path, const rf_path_direction_t direction) {
/* Turn off TX and RX amplifiers, then enable based on direction and bypass state. */
rf_path->switchctrl |= SWITCHCTRL_NO_TX_AMP_PWR | SWITCHCTRL_NO_RX_AMP_PWR;
switch(direction) {
case RF_PATH_DIRECTION_TX:
rf_path->switchctrl |= SWITCHCTRL_TX;
if( (rf_path->switchctrl & SWITCHCTRL_AMP_BYPASS) == 0 ) {
/* TX amplifier is in path, be sure to enable TX amplifier. */
rf_path->switchctrl &= ~SWITCHCTRL_NO_TX_AMP_PWR;
}
mixer_tx(&mixer);
if( rf_path->switchctrl & SWITCHCTRL_MIX_BYPASS ) {
mixer_disable(&mixer);
} else {
mixer_enable(&mixer);
}
ssp1_set_mode_max5864();
max5864_tx(&max5864);
ssp1_set_mode_max2837();
max2837_tx(&max2837);
sgpio_configure(&sgpio_config, SGPIO_DIRECTION_TX);
break;
case RF_PATH_DIRECTION_RX:
rf_path->switchctrl &= ~SWITCHCTRL_TX;
if( (rf_path->switchctrl & SWITCHCTRL_AMP_BYPASS) == 0 ) {
/* RX amplifier is in path, be sure to enable RX amplifier. */
rf_path->switchctrl &= ~SWITCHCTRL_NO_RX_AMP_PWR;
}
mixer_rx(&mixer);
if( rf_path->switchctrl & SWITCHCTRL_MIX_BYPASS ) {
mixer_disable(&mixer);
} else {
mixer_enable(&mixer);
}
ssp1_set_mode_max5864();
max5864_rx(&max5864);
ssp1_set_mode_max2837();
max2837_rx(&max2837);
sgpio_configure(&sgpio_config, SGPIO_DIRECTION_RX);
break;
case RF_PATH_DIRECTION_OFF:
default:
#ifdef HACKRF_ONE
rf_path_set_antenna(rf_path, 0);
#endif
rf_path_set_lna(rf_path, 0);
/* Set RF path to receive direction when "off" */
rf_path->switchctrl &= ~SWITCHCTRL_TX;
mixer_disable(&mixer);
ssp1_set_mode_max5864();
max5864_standby(&max5864);
ssp1_set_mode_max2837();
max2837_set_mode(&max2837, MAX2837_MODE_STANDBY);
sgpio_configure(&sgpio_config, SGPIO_DIRECTION_RX);
break;
}
switchctrl_set(rf_path, rf_path->switchctrl);
hackrf_ui()->set_direction(direction);
}
void rf_path_set_filter(rf_path_t* const rf_path, const rf_path_filter_t filter) {
switch(filter) {
default:
case RF_PATH_FILTER_BYPASS:
rf_path->switchctrl |= SWITCHCTRL_MIX_BYPASS;
mixer_disable(&mixer);
break;
case RF_PATH_FILTER_LOW_PASS:
rf_path->switchctrl &= ~(SWITCHCTRL_HP | SWITCHCTRL_MIX_BYPASS);
mixer_enable(&mixer);
break;
case RF_PATH_FILTER_HIGH_PASS:
rf_path->switchctrl &= ~SWITCHCTRL_MIX_BYPASS;
rf_path->switchctrl |= SWITCHCTRL_HP;
mixer_enable(&mixer);
break;
}
switchctrl_set(rf_path, rf_path->switchctrl);
hackrf_ui()->set_filter(filter);
}
void rf_path_set_lna(rf_path_t* const rf_path, const uint_fast8_t enable) {
if( enable ) {
if( rf_path->switchctrl & SWITCHCTRL_TX ) {
/* AMP_BYPASS=0, NO_RX_AMP_PWR=1, NO_TX_AMP_PWR=0 */
rf_path->switchctrl |= SWITCHCTRL_NO_RX_AMP_PWR;
rf_path->switchctrl &= ~(SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_NO_TX_AMP_PWR);
} else {
/* AMP_BYPASS=0, NO_RX_AMP_PWR=0, NO_TX_AMP_PWR=1 */
rf_path->switchctrl |= SWITCHCTRL_NO_TX_AMP_PWR;
rf_path->switchctrl &= ~(SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_NO_RX_AMP_PWR);
}
} else {
/* AMP_BYPASS=1, NO_RX_AMP_PWR=1, NO_TX_AMP_PWR=1 */
rf_path->switchctrl |= SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_NO_TX_AMP_PWR | SWITCHCTRL_NO_RX_AMP_PWR;
}
switchctrl_set(rf_path, rf_path->switchctrl);
hackrf_ui()->set_lna_power(enable);
}
/* antenna port power control */
void rf_path_set_antenna(rf_path_t* const rf_path, const uint_fast8_t enable) {
if (enable) {
rf_path->switchctrl |= SWITCHCTRL_ANT_PWR;
} else {
rf_path->switchctrl &= ~(SWITCHCTRL_ANT_PWR);
}
switchctrl_set(rf_path, rf_path->switchctrl);
hackrf_ui()->set_antenna_bias(enable);
}