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Track RFFC5071 enabled state

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Re-lock PLL when re-tuning while enabled
This commit is contained in:
Michael Ossmann
2026-02-10 07:04:09 -05:00
parent d60ebc2781
commit aaad548b0b
1 changed files with 20 additions and 6 deletions
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26
firmware/common/rffc5071.c
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@@ -41,6 +41,8 @@
#include "hackrf_core.h"
#include "delay.h"
static bool enabled = false;
/* Default register values from vendor documentation or software. */
static const uint16_t rffc5071_regs_default[RFFC5071_NUM_REGS] = {
0xfffb, /* 00 */
@@ -146,6 +148,7 @@ void rffc5071_lock_test(rffc5071_driver_t* const drv)
for (int i = 0; i < NUM_LOCK_ATTEMPTS; i++) {
// Tune to 100MHz.
rffc5071_set_frequency(drv, 100000000);
rffc5071_enable(drv);
// Wait 1ms.
delay_us_at_mhz(1000, 204);
@@ -153,6 +156,9 @@ void rffc5071_lock_test(rffc5071_driver_t* const drv)
// Check for lock.
lock = rffc5071_check_lock(drv);
rffc5071_disable(drv);
delay_us_at_mhz(100, 204);
selftest.mixer_locks[i] = lock;
}
@@ -229,14 +235,20 @@ void rffc5071_regs_commit(rffc5071_driver_t* const drv)
void rffc5071_disable(rffc5071_driver_t* const drv)
{
set_RFFC5071_ENBL(drv, 0);
rffc5071_regs_commit(drv);
if (enabled) {
set_RFFC5071_ENBL(drv, 0);
rffc5071_regs_commit(drv);
enabled = false;
}
}
void rffc5071_enable(rffc5071_driver_t* const drv)
{
set_RFFC5071_ENBL(drv, 1);
rffc5071_regs_commit(drv);
if (!enabled) {
set_RFFC5071_ENBL(drv, 1);
rffc5071_regs_commit(drv);
enabled = true;
}
}
#define FREQ_ONE_MHZ (1000ULL * 1000ULL)
@@ -308,9 +320,11 @@ uint64_t rffc5071_set_frequency(rffc5071_driver_t* const drv, uint64_t hz)
{
uint32_t tune_freq;
rffc5071_disable(drv);
tune_freq = rffc5071_config_synth(drv, hz);
rffc5071_enable(drv);
if (enabled) {
set_RFFC5071_RELOK(drv, 1);
rffc5071_regs_commit(drv);
}
return tune_freq;
}