455 lines
15 KiB
C
455 lines
15 KiB
C
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/*
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* Copyright 2012 Jared Boone
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* Copyright 2013 Benjamin Vernoux
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*
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* This file is part of HackRF.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "rf_path.h"
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#include <libopencm3/lpc43xx/scu.h>
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#include <hackrf_core.h>
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#include "hackrf_ui.h"
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#include <mixer.h>
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#include <max2837.h>
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#include <max5864.h>
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#include <sgpio.h>
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#if (defined JAWBREAKER || defined HACKRF_ONE || defined RAD1O)
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/*
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* RF switches on Jawbreaker are controlled by General Purpose Outputs (GPO) on
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* the RFFC5072.
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*
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* On HackRF One, the same signals are controlled by GPIO on the LPC.
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* SWITCHCTRL_NO_TX_AMP_PWR and SWITCHCTRL_NO_RX_AMP_PWR are not normally used
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* on HackRF One as the amplifier power is instead controlled only by
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* SWITCHCTRL_AMP_BYPASS.
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*
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* The rad1o also uses GPIO pins to control the different switches. The amplifiers
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* are also connected to the LPC.
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*/
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#define SWITCHCTRL_NO_TX_AMP_PWR (1 << 0) /* GPO1 turn off TX amp power */
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#define SWITCHCTRL_AMP_BYPASS (1 << 1) /* GPO2 bypass amp section */
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#define SWITCHCTRL_TX (1 << 2) /* GPO3 1 for TX mode, 0 for RX mode */
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#define SWITCHCTRL_MIX_BYPASS (1 << 3) /* GPO4 bypass RFFC5072 mixer section */
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#define SWITCHCTRL_HP (1 << 4) /* GPO5 1 for high-pass, 0 for low-pass */
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#define SWITCHCTRL_NO_RX_AMP_PWR (1 << 5) /* GPO6 turn off RX amp power */
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/*
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GPO6 GPO5 GPO4 GPO3 GPO2 GPO1
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!RXAMP HP MIXBP TX AMPBP !TXAMP Mix mode Amp mode
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1 X 1 1 1 1 TX bypass Bypass
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1 X 1 1 0 0 TX bypass TX amplified
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1 1 0 1 1 1 TX high Bypass
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1 1 0 1 0 0 TX high TX amplified
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1 0 0 1 1 1 TX low Bypass
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1 0 0 1 0 0 TX low TX amplified
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1 X 1 0 1 1 RX bypass Bypass
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0 X 1 0 0 1 RX bypass RX amplified
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1 1 0 0 1 1 RX high Bypass
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0 1 0 0 0 1 RX high RX amplified
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1 0 0 0 1 1 RX low Bypass
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0 0 0 0 0 1 RX low RX amplified
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*/
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/*
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* Safe (initial) switch settings turn off both amplifiers and enable both amp
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* bypass and mixer bypass.
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*/
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#define SWITCHCTRL_SAFE (SWITCHCTRL_NO_TX_AMP_PWR | SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_TX | SWITCHCTRL_MIX_BYPASS | SWITCHCTRL_HP | SWITCHCTRL_NO_RX_AMP_PWR)
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#endif
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uint8_t switchctrl = SWITCHCTRL_SAFE;
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/*
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* Antenna port power on HackRF One is controlled by GPO1 on the RFFC5072.
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* This is the only thing we use RFFC5072 GPO for on HackRF One. The value of
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* SWITCHCTRL_NO_ANT_PWR does not correspond to the GPO1 bit in the gpo
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* register.
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*/
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#define SWITCHCTRL_ANT_PWR (1 << 6) /* turn on antenna port power */
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#ifdef HACKRF_ONE
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static void switchctrl_set_hackrf_one(rf_path_t* const rf_path, uint8_t ctrl) {
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if (ctrl & SWITCHCTRL_TX) {
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gpio_set(rf_path->gpio_tx);
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gpio_clear(rf_path->gpio_rx);
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} else {
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gpio_clear(rf_path->gpio_tx);
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gpio_set(rf_path->gpio_rx);
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}
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if (ctrl & SWITCHCTRL_MIX_BYPASS) {
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gpio_set(rf_path->gpio_mix_bypass);
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gpio_clear(rf_path->gpio_no_mix_bypass);
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if (ctrl & SWITCHCTRL_TX) {
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gpio_set(rf_path->gpio_tx_mix_bp);
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gpio_clear(rf_path->gpio_rx_mix_bp);
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} else {
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gpio_clear(rf_path->gpio_tx_mix_bp);
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gpio_set(rf_path->gpio_rx_mix_bp);
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}
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} else {
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gpio_clear(rf_path->gpio_mix_bypass);
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gpio_set(rf_path->gpio_no_mix_bypass);
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gpio_clear(rf_path->gpio_tx_mix_bp);
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gpio_clear(rf_path->gpio_rx_mix_bp);
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}
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if (ctrl & SWITCHCTRL_HP) {
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gpio_set(rf_path->gpio_hp);
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gpio_clear(rf_path->gpio_lp);
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} else {
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gpio_clear(rf_path->gpio_hp);
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gpio_set(rf_path->gpio_lp);
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}
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if (ctrl & SWITCHCTRL_AMP_BYPASS) {
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gpio_set(rf_path->gpio_amp_bypass);
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gpio_clear(rf_path->gpio_tx_amp);
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gpio_set(rf_path->gpio_no_tx_amp_pwr);
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gpio_clear(rf_path->gpio_rx_amp);
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gpio_set(rf_path->gpio_no_rx_amp_pwr);
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} else if (ctrl & SWITCHCTRL_TX) {
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gpio_clear(rf_path->gpio_amp_bypass);
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gpio_set(rf_path->gpio_tx_amp);
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gpio_clear(rf_path->gpio_no_tx_amp_pwr);
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gpio_clear(rf_path->gpio_rx_amp);
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gpio_set(rf_path->gpio_no_rx_amp_pwr);
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} else {
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gpio_clear(rf_path->gpio_amp_bypass);
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gpio_clear(rf_path->gpio_tx_amp);
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gpio_set(rf_path->gpio_no_tx_amp_pwr);
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gpio_set(rf_path->gpio_rx_amp);
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gpio_clear(rf_path->gpio_no_rx_amp_pwr);
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}
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/*
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* These normally shouldn't be set post-Jawbreaker, but they can be
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* used to explicitly turn off power to the amplifiers while AMP_BYPASS
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* is unset:
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*/
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if (ctrl & SWITCHCTRL_NO_TX_AMP_PWR)
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gpio_set(rf_path->gpio_no_tx_amp_pwr);
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if (ctrl & SWITCHCTRL_NO_RX_AMP_PWR)
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gpio_set(rf_path->gpio_no_rx_amp_pwr);
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if (ctrl & SWITCHCTRL_ANT_PWR) {
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mixer_set_gpo(&mixer, 0x00); /* turn on antenna power by clearing GPO1 */
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} else {
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mixer_set_gpo(&mixer, 0x01); /* turn off antenna power by setting GPO1 */
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}
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}
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#endif
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#ifdef RAD1O
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static void switchctrl_set_rad1o(rf_path_t* const rf_path, uint8_t ctrl) {
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if (ctrl & SWITCHCTRL_TX) {
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gpio_set(rf_path->gpio_tx_rx_n);
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gpio_clear(rf_path->gpio_tx_rx);
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} else {
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gpio_clear(rf_path->gpio_tx_rx_n);
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gpio_set(rf_path->gpio_tx_rx);
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}
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if (ctrl & SWITCHCTRL_MIX_BYPASS) {
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gpio_clear(rf_path->gpio_by_mix);
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gpio_set(rf_path->gpio_by_mix_n);
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gpio_clear(rf_path->gpio_mixer_en);
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} else {
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gpio_set(rf_path->gpio_by_mix);
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gpio_clear(rf_path->gpio_by_mix_n);
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gpio_set(rf_path->gpio_mixer_en);
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}
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if (ctrl & SWITCHCTRL_HP) {
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gpio_set(rf_path->gpio_low_high_filt);
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gpio_clear(rf_path->gpio_low_high_filt_n);
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} else {
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gpio_clear(rf_path->gpio_low_high_filt);
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gpio_set(rf_path->gpio_low_high_filt_n);
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}
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if (ctrl & SWITCHCTRL_AMP_BYPASS) {
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gpio_clear(rf_path->gpio_by_amp);
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gpio_set(rf_path->gpio_by_amp_n);
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gpio_clear(rf_path->gpio_tx_amp);
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gpio_clear(rf_path->gpio_rx_lna);
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} else if (ctrl & SWITCHCTRL_TX) {
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gpio_set(rf_path->gpio_by_amp);
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gpio_clear(rf_path->gpio_by_amp_n);
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gpio_set(rf_path->gpio_tx_amp);
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gpio_clear(rf_path->gpio_rx_lna);
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} else {
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gpio_set(rf_path->gpio_by_amp);
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gpio_clear(rf_path->gpio_by_amp_n);
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gpio_clear(rf_path->gpio_tx_amp);
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gpio_set(rf_path->gpio_rx_lna);
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}
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/*
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* These normally shouldn't be set post-Jawbreaker, but they can be
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* used to explicitly turn off power to the amplifiers while AMP_BYPASS
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* is unset:
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*/
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if (ctrl & SWITCHCTRL_NO_TX_AMP_PWR) {
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gpio_clear(rf_path->gpio_tx_amp);
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}
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if (ctrl & SWITCHCTRL_NO_RX_AMP_PWR) {
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gpio_clear(rf_path->gpio_rx_lna);
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}
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}
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#endif
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static void switchctrl_set(rf_path_t* const rf_path, const uint8_t gpo) {
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#ifdef JAWBREAKER
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(void) rf_path; /* silence unused param warning */
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mixer_set_gpo(&mixer, gpo);
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#elif HACKRF_ONE
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switchctrl_set_hackrf_one(rf_path, gpo);
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#elif RAD1O
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switchctrl_set_rad1o(rf_path, gpo);
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#else
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(void)gpo;
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#endif
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}
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void rf_path_pin_setup(rf_path_t* const rf_path) {
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#ifdef HACKRF_ONE
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/* Configure RF switch control signals */
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scu_pinmux(SCU_HP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_LP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_TX_MIX_BP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_NO_MIX_BYPASS, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_RX_MIX_BP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_TX_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_TX, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
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scu_pinmux(SCU_MIX_BYPASS, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
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scu_pinmux(SCU_RX, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
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scu_pinmux(SCU_NO_TX_AMP_PWR, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_AMP_BYPASS, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_RX_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_NO_RX_AMP_PWR, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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/* Configure RF power supply (VAA) switch */
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scu_pinmux(SCU_NO_VAA_ENABLE, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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/* Configure RF switch control signals as outputs */
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gpio_output(rf_path->gpio_amp_bypass);
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gpio_output(rf_path->gpio_no_mix_bypass);
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gpio_output(rf_path->gpio_rx_amp);
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gpio_output(rf_path->gpio_no_rx_amp_pwr);
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gpio_output(rf_path->gpio_hp);
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gpio_output(rf_path->gpio_lp);
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gpio_output(rf_path->gpio_tx_mix_bp);
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gpio_output(rf_path->gpio_rx_mix_bp);
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gpio_output(rf_path->gpio_tx_amp);
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gpio_output(rf_path->gpio_no_tx_amp_pwr);
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gpio_output(rf_path->gpio_tx);
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gpio_output(rf_path->gpio_mix_bypass);
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gpio_output(rf_path->gpio_rx);
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/*
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* Safe (initial) switch settings turn off both amplifiers and antenna port
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* power and enable both amp bypass and mixer bypass.
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*/
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switchctrl_set(rf_path, SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_MIX_BYPASS);
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#elif RAD1O
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/* Configure RF switch control signals */
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scu_pinmux(SCU_BY_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_BY_AMP_N, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
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scu_pinmux(SCU_TX_RX, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_TX_RX_N, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_BY_MIX, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_BY_MIX_N, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_LOW_HIGH_FILT, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_LOW_HIGH_FILT_N,SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_TX_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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scu_pinmux(SCU_RX_LNA, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
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scu_pinmux(SCU_MIXER_EN, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
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/* Configure RF power supply (VAA) switch */
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scu_pinmux(SCU_VAA_ENABLE, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
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/* Configure RF switch control signals as outputs */
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gpio_output(rf_path->gpio_tx_rx_n);
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gpio_output(rf_path->gpio_tx_rx);
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gpio_output(rf_path->gpio_by_mix);
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gpio_output(rf_path->gpio_by_mix_n);
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gpio_output(rf_path->gpio_by_amp);
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gpio_output(rf_path->gpio_by_amp_n);
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gpio_output(rf_path->gpio_mixer_en);
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gpio_output(rf_path->gpio_low_high_filt);
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gpio_output(rf_path->gpio_low_high_filt_n);
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gpio_output(rf_path->gpio_tx_amp);
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gpio_output(rf_path->gpio_rx_lna);
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/*
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* Safe (initial) switch settings turn off both amplifiers and antenna port
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* power and enable both amp bypass and mixer bypass.
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*/
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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);
|
||
|
|
}
|