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BLE Rx parsing improvements (#1566)

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* Running simple state machine to better catch in between buffers. 
* Fixed buffer size 2048 was too large for a decimated before only containing 512 (2048/4 Decimation) Bytes.
* attempt at trying to minimize uncleared str buffers
This commit is contained in:
Netro
2023-11-07 12:10:18 -05:00
committed by GitHub
parent 7a87e3f3af
commit a9df9dde69
3 changed files with 189 additions and 164 deletions
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19
firmware/baseband/proc_btlerx.hpp
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@@ -48,6 +48,12 @@ class BTLERxProcessor : public BasebandProcessor {
static constexpr uint32_t DEFAULT_ACCESS_ADDR{0x8E89BED6};
static constexpr int NUM_ACCESS_ADDR_BYTE{4};
enum Parse_State {
Parse_State_Begin = 0,
Parse_State_PDU_Header,
Parse_State_PDU_Payload
};
enum ADV_PDU_TYPE {
ADV_IND = 0,
ADV_DIRECT_IND = 1,
@@ -111,13 +117,13 @@ class BTLERxProcessor : public BasebandProcessor {
// void demod_byte(int num_byte, uint8_t *out_byte);
int parse_adv_pdu_payload_byte(uint8_t* payload_byte, int num_payload_byte, ADV_PDU_TYPE pdu_type, void* adv_pdu_payload);
std::array<complex16_t, 1024> dst{};
std::array<complex16_t, 512> dst{};
const buffer_c16_t dst_buffer{
dst.data(),
dst.size()};
static constexpr int RB_SIZE = 2048;
uint8_t rb_buf[2048];
static constexpr int RB_SIZE = 512;
uint8_t rb_buf[RB_SIZE];
dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0{};
@@ -131,6 +137,13 @@ class BTLERxProcessor : public BasebandProcessor {
bool configured{false};
BlePacketData blePacketData{};
Parse_State parseState{};
uint16_t packet_index{0};
int sample_idx{0};
uint8_t bit_decision{0};
uint8_t payload_len{0};
uint8_t pdu_type{0};
/* NB: Threads should be the last members in the class definition. */
BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive};
RSSIThread rssi_thread{};