Extract rf_path code into a separate .c/.h.
Add an rf_path_init() function to do initial, idle configuration during start-up.
This commit is contained in:
Jared Boone
@ -23,6 +23,7 @@
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BINARY = hackrf_usb
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SRC = $(BINARY).c \
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rf_path.c \
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usb.c \
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usb_request.c \
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usb_standard_request.c \
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@ -23,6 +23,7 @@
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BINARY = hackrf_usb_rom_to_ram
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SRC = hackrf_usb.c \
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rf_path.c \
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usb.c \
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usb_request.c \
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usb_standard_request.c \
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@ -45,6 +45,8 @@
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#include "usb_descriptor.h"
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#include "usb_standard_request.h"
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#include "rf_path.h"
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static volatile transceiver_mode_t transceiver_mode = TRANSCEIVER_MODE_OFF;
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void sgpio_isr_rx();
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@ -79,119 +81,6 @@ typedef struct {
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set_sample_r_params_t set_sample_r_params;
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#ifdef JAWBREAKER
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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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#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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typedef enum {
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RF_PATH_DIRECTION_RX,
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RF_PATH_DIRECTION_TX,
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} rf_path_direction_t;
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void rf_path_set_direction(const rf_path_direction_t direction) {
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/* Turn off TX and RX amplifiers, then enable based on direction and bypass state. */
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switchctrl |= SWITCHCTRL_NO_TX_AMP_PWR | SWITCHCTRL_NO_RX_AMP_PWR;
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if( direction == RF_PATH_DIRECTION_TX ) {
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switchctrl |= SWITCHCTRL_TX;
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if( (switchctrl & SWITCHCTRL_AMP_BYPASS) == 0 ) {
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/* TX amplifier is in path, be sure to enable TX amplifier. */
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switchctrl &= ~SWITCHCTRL_NO_TX_AMP_PWR;
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}
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rffc5071_tx();
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} else {
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switchctrl &= ~SWITCHCTRL_TX;
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if( (switchctrl & SWITCHCTRL_AMP_BYPASS) == 0 ) {
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/* RX amplifier is in path, be sure to enable RX amplifier. */
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switchctrl &= ~SWITCHCTRL_NO_RX_AMP_PWR;
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}
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rffc5071_rx();
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}
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rffc5071_set_gpo(switchctrl);
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}
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typedef enum {
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RF_PATH_FILTER_BYPASS,
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RF_PATH_FILTER_LOW_PASS,
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RF_PATH_FILTER_HIGH_PASS,
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} rf_path_filter_t;
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void rf_path_set_filter(const rf_path_filter_t filter) {
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switch(filter) {
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default:
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case RF_PATH_FILTER_BYPASS:
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switchctrl |= SWITCHCTRL_MIX_BYPASS;
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rffc5071_disable();
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break;
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case RF_PATH_FILTER_LOW_PASS:
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switchctrl &= ~(SWITCHCTRL_HP | SWITCHCTRL_MIX_BYPASS);
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rffc5071_enable();
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break;
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case RF_PATH_FILTER_HIGH_PASS:
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switchctrl &= ~SWITCHCTRL_MIX_BYPASS;
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switchctrl |= SWITCHCTRL_HP;
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rffc5071_enable();
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break;
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}
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rffc5071_set_gpo(switchctrl);
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}
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void rf_path_set_lna(const uint_fast8_t enable) {
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if( enable ) {
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if( switchctrl & SWITCHCTRL_TX ) {
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/* AMP_BYPASS=0, NO_RX_AMP_PWR=1, NO_TX_AMP_PWR=0 */
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switchctrl |= SWITCHCTRL_NO_RX_AMP_PWR;
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switchctrl &= ~(SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_NO_TX_AMP_PWR);
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} else {
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/* AMP_BYPASS=0, NO_RX_AMP_PWR=0, NO_TX_AMP_PWR=1 */
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switchctrl |= SWITCHCTRL_NO_TX_AMP_PWR;
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switchctrl &= ~(SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_NO_RX_AMP_PWR);
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}
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} else {
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/* AMP_BYPASS=1, NO_RX_AMP_PWR=1, NO_TX_AMP_PWR=1 */
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switchctrl |= SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_NO_TX_AMP_PWR | SWITCHCTRL_NO_RX_AMP_PWR;
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}
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rffc5071_set_gpo(switchctrl);
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}
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#define FREQ_ONE_MHZ (1000*1000)
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#define MIN_LP_FREQ_MHZ (5)
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@ -1107,10 +996,8 @@ int main(void) {
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max2837_set_frequency(ifreq);
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rffc5071_setup();
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#ifdef JAWBREAKER
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/* initial safe switch control settings */
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rffc5071_set_gpo(switchctrl);
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#endif
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rf_path_init();
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while(true) {
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// Wait until buffer 0 is transmitted/received.
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109
firmware/hackrf_usb/rf_path.c
Normal file
109
firmware/hackrf_usb/rf_path.c
Normal file
@ -0,0 +1,109 @@
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#include "rf_path.h"
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#include <rffc5071.h>
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#ifdef JAWBREAKER
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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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#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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void rf_path_init(void) {
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rffc5071_set_gpo(switchctrl);
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}
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void rf_path_set_direction(const rf_path_direction_t direction) {
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/* Turn off TX and RX amplifiers, then enable based on direction and bypass state. */
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switchctrl |= SWITCHCTRL_NO_TX_AMP_PWR | SWITCHCTRL_NO_RX_AMP_PWR;
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if( direction == RF_PATH_DIRECTION_TX ) {
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switchctrl |= SWITCHCTRL_TX;
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if( (switchctrl & SWITCHCTRL_AMP_BYPASS) == 0 ) {
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/* TX amplifier is in path, be sure to enable TX amplifier. */
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switchctrl &= ~SWITCHCTRL_NO_TX_AMP_PWR;
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}
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rffc5071_tx();
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} else {
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switchctrl &= ~SWITCHCTRL_TX;
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if( (switchctrl & SWITCHCTRL_AMP_BYPASS) == 0 ) {
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/* RX amplifier is in path, be sure to enable RX amplifier. */
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switchctrl &= ~SWITCHCTRL_NO_RX_AMP_PWR;
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}
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rffc5071_rx();
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}
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rffc5071_set_gpo(switchctrl);
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}
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void rf_path_set_filter(const rf_path_filter_t filter) {
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switch(filter) {
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default:
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case RF_PATH_FILTER_BYPASS:
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switchctrl |= SWITCHCTRL_MIX_BYPASS;
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rffc5071_disable();
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break;
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case RF_PATH_FILTER_LOW_PASS:
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switchctrl &= ~(SWITCHCTRL_HP | SWITCHCTRL_MIX_BYPASS);
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rffc5071_enable();
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break;
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case RF_PATH_FILTER_HIGH_PASS:
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switchctrl &= ~SWITCHCTRL_MIX_BYPASS;
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switchctrl |= SWITCHCTRL_HP;
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rffc5071_enable();
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break;
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}
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rffc5071_set_gpo(switchctrl);
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}
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void rf_path_set_lna(const uint_fast8_t enable) {
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if( enable ) {
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if( switchctrl & SWITCHCTRL_TX ) {
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/* AMP_BYPASS=0, NO_RX_AMP_PWR=1, NO_TX_AMP_PWR=0 */
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switchctrl |= SWITCHCTRL_NO_RX_AMP_PWR;
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switchctrl &= ~(SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_NO_TX_AMP_PWR);
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} else {
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/* AMP_BYPASS=0, NO_RX_AMP_PWR=0, NO_TX_AMP_PWR=1 */
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switchctrl |= SWITCHCTRL_NO_TX_AMP_PWR;
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switchctrl &= ~(SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_NO_RX_AMP_PWR);
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}
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} else {
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/* AMP_BYPASS=1, NO_RX_AMP_PWR=1, NO_TX_AMP_PWR=1 */
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switchctrl |= SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_NO_TX_AMP_PWR | SWITCHCTRL_NO_RX_AMP_PWR;
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}
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rffc5071_set_gpo(switchctrl);
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}
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25
firmware/hackrf_usb/rf_path.h
Normal file
25
firmware/hackrf_usb/rf_path.h
Normal file
@ -0,0 +1,25 @@
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#ifndef __RFPATH_H__
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#define __RFPATH_H__
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#include <stdint.h>
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void rf_path_init(void);
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typedef enum {
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RF_PATH_DIRECTION_RX,
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RF_PATH_DIRECTION_TX,
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} rf_path_direction_t;
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void rf_path_set_direction(const rf_path_direction_t direction);
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typedef enum {
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RF_PATH_FILTER_BYPASS,
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RF_PATH_FILTER_LOW_PASS,
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RF_PATH_FILTER_HIGH_PASS,
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} rf_path_filter_t;
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void rf_path_set_filter(const rf_path_filter_t filter);
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void rf_path_set_lna(const uint_fast8_t enable);
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#endif/*__RFPATH_H__*/
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@ -25,6 +25,7 @@ BINARY = hackrf_usb_rom_to_ram
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SRC_DIR = hackrf_usb
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SRC = hackrf_usb.c \
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rf_path.c \
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usb.c \
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usb_request.c \
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usb_standard_request.c \
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Reference in New Issue
Block a user