From 9f2d6cdbeada0bc4d543aadf8b6ba6d6b2ba4b2b Mon Sep 17 00:00:00 2001 From: Mike Walters Date: Fri, 1 Jul 2016 20:09:15 +0100 Subject: [PATCH] WIP scanning --- firmware/hackrf_usb/hackrf_usb.c | 50 +++++++++++++++++++++++--------- 1 file changed, 36 insertions(+), 14 deletions(-) diff --git a/firmware/hackrf_usb/hackrf_usb.c b/firmware/hackrf_usb/hackrf_usb.c index 2c5ec3d0..394875c4 100644 --- a/firmware/hackrf_usb/hackrf_usb.c +++ b/firmware/hackrf_usb/hackrf_usb.c @@ -28,6 +28,8 @@ #include +#include "tuning.h" + #include "usb.h" #include "usb_standard_request.h" @@ -239,6 +241,13 @@ int main(void) { rf_path_init(&rf_path); unsigned int phase = 0; + + unsigned int blocks_queued = 0; + const uint64_t scan_freq_min = 100000000; + const uint64_t scan_freq_max = 6000000000; + const uint64_t scan_freq_step = 20000000; + uint64_t scan_freq = scan_freq_min; + set_freq(scan_freq); while(true) { // Check whether we need to initiate a CPLD update if (start_cpld_update) @@ -248,28 +257,41 @@ int main(void) { if ( usb_bulk_buffer_offset >= 16384 && phase == 1 && transceiver_mode() != TRANSCEIVER_MODE_OFF) { - usb_transfer_schedule_block( - (transceiver_mode() == TRANSCEIVER_MODE_RX) - ? &usb_endpoint_bulk_in : &usb_endpoint_bulk_out, - &usb_bulk_buffer[0x0000], - 0x4000, - NULL, NULL - ); + if (blocks_queued == 2) + usb_transfer_schedule_block( + (transceiver_mode() == TRANSCEIVER_MODE_RX) + ? &usb_endpoint_bulk_in : &usb_endpoint_bulk_out, + &usb_bulk_buffer[0x0000], + 0x4000, + NULL, NULL + ); phase = 0; + blocks_queued++; } // Set up IN transfer of buffer 1. if ( usb_bulk_buffer_offset < 16384 && phase == 0 && transceiver_mode() != TRANSCEIVER_MODE_OFF) { - usb_transfer_schedule_block( - (transceiver_mode() == TRANSCEIVER_MODE_RX) - ? &usb_endpoint_bulk_in : &usb_endpoint_bulk_out, - &usb_bulk_buffer[0x4000], - 0x4000, - NULL, NULL - ); + if (blocks_queued == 2) + usb_transfer_schedule_block( + (transceiver_mode() == TRANSCEIVER_MODE_RX) + ? &usb_endpoint_bulk_in : &usb_endpoint_bulk_out, + &usb_bulk_buffer[0x4000], + 0x4000, + NULL, NULL + ); phase = 1; + blocks_queued++; + } + + if (blocks_queued > 2) { + scan_freq += scan_freq_step; + if (scan_freq > scan_freq_max) { + scan_freq = scan_freq_min; + } + set_freq(scan_freq); + blocks_queued = 0; } }