moved to configurable components, added SSD1306 support

This commit is contained in:
Lurkars 2020-07-15 22:22:54 +02:00
parent 1eedea1b9a
commit eaf1c74faa
35 changed files with 1577 additions and 621 deletions

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@ -8,13 +8,13 @@ More information about the Covid-19 Exposure Notification at [Apple](https://www
[Demo Video](https://twitter.com/Lurkars/status/1282223547579019264)
This implementation covers for now the BLE part including the cryptography specifications needed (see Bluetooth Specifications and Cryptography Specifications documents in the links above):
* send tokens
* store TEKs on flash (last 14 tokens)
* receive tokens
* received tokens are stored after 5 minutes threshold (storage is limited, ~100k tokens can be stored)
* send beacons
* store TEKs on flash (last 14)
* receive beacons
* received beacons are stored after 5 minutes threshold (storage is limited, ~100k beacons can be stored)
Features missing for now are:
* compare received tokens with infected list
* compare received beacons with infected list
* calculating risks scores
Extensions planned:
@ -22,10 +22,10 @@ Extensions planned:
* add display (will test SSD1306)
* interface to
* set time
* delete tokens
* delete beacons
* show status
* report infection?
* receive infected token list (will test [Corona Warn App](https://github.com/corona-warn-app))
* receive infected beacons list (will test [Corona Warn App](https://github.com/corona-warn-app))
* send infected status (will test [Corona Warn App](https://github.com/corona-warn-app))
* battery support
* 3d print case
@ -44,7 +44,7 @@ The following acronyms will be used in code and comments:
* *AEM* Associated Encrypted Metadata - send and received metadata
Open questions
* now save ENIN for stored detection (documentation says timestamp), but for infection status ENIN should be enough!?
* now save ENIN for stored beacons (documentation says timestamp), but for infection status ENIN should be enough!?
* service UUID is send reversed, must RPI and AEM also beeing send in reverse? Don't know BLE specification enough
* fixed change of advertise payload every 10 minutes, random value between ~15 minutes better?
@ -68,6 +68,10 @@ required
recommended
* BLE Scan Duplicate (By Device Address and Advertising Data)
debug options
* Log output set to Debug
* Exposure Notification API enable Dump storage
### Build and Flash
@ -87,29 +91,6 @@ idf.py -p PORT flash monitor
(To exit the serial monitor, type ``Ctrl-]``.)
## Example Output
For now some debug outputs are set. Besides, after each scan a CSV output is printed with stored TEKs, temporary detections (RPI) and full detections (RPI)
```
I (1201484) ESP-ENA-advertise: payload for ENIN 2657432
D (1201494) ESP-ENA-advertise: 0x3ffbb6c4 02 01 1a 03 03 6f fd 17 16 6f fd 9a ee 95 9a 24 |.....o...o.....$|
D (1201494) ESP-ENA-advertise: 0x3ffbb6d4 f0 f9 8e 56 0f 6d 68 5f ac 12 e5 7f 94 a1 47 |...V.mh_......G|
I (1201524) ESP-ENA-scan: start scanning...
D (1202224) ESP-ENA-detection: New temporary detection at 0 with timestamp 1594459201
D (1202224) ESP-ENA-detection: 19 05 e3 3a 73 16 4e 74 2d 48 fc 0c 41 f6 26 3b
D (1202234) ESP-ENA-detection: 5e 7d a9 48
D (1202234) ESP-ENA-detection: RSSI -79
#,enin,tek
0,2657430,d5 13 92 b2 44 e4 7e b6 ca a7 20 c4 f 37 c0 1c
#,timestamp,rpi,aem,rssi
0,1594459201,19 5 e3 3a 73 16 4e 74 2d 48 fc c 41 f6 26 3b,5e 7d a9 48,-79
#,enin,rpi,aem,rssi
0,2657430,c7 2e b6 66 af 84 42 db b d1 a 0 f1 fd 86 2,4d 1 b2 d1,-76
1,2657431,19 5 e3 3a 73 16 4e 74 2d 48 fc c 41 f6 26 3b,5e 7d a9 48,-76
I (1231754) ESP-ENA-scan: finished scanning...
```
## Troubleshooting
Sometimes I get errors from BT-stack of ESP-IDF printed. Didn't affect functionality for now, but I also could not find out what it caused and what it means.
@ -121,10 +102,10 @@ E (909164) BT_HCI: btu_hcif_hdl_command_complete opcode 0x2005 status 0xc
## Structure
The project is divided in different files
* *ena-beacon* handles scanned data by storing temporary beacons, check for threshold and store beacons permanently
* *ena-crypto* covers cryptography part (key creation, encryption etc.)
* *ena-storage* storage part to store own TEKs and detections
* *ena-detection* handles scanned data by storing temporary detections, check for threshold and store full detections
* *ena-bluetooth-scan* BLE scans for detecting other tokens
* *ena-bluetooth-advertise* BLE advertising to send own tokens
* *ena-storage* storage part to store own TEKs and beacons
* *ena-bluetooth-scan* BLE scans for detecting other beacons
* *ena-bluetooth-advertise* BLE advertising to send own beacons
* *ena* run all together and timing for scanning and advertising
* *main* start and run main program

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@ -0,0 +1,9 @@
idf_component_register(
SRCS
"interface.c"
"interface-datetime.c"
"interface-menu.c"
INCLUDE_DIRS "include"
PRIV_REQUIRES
ena
)

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@ -11,7 +11,6 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_INTERFACE_DATETIME_H_
#define _ena_INTERFACE_DATETIME_H_

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@ -11,7 +11,6 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_INTERFACE_MENU_H_
#define _ena_INTERFACE_MENU_H_

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@ -11,14 +11,12 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_INTERFACE_H_
#define _ena_INTERFACE_H_
#define ENA_INTERFACE_LOG "ESP-ENA-interface" // TAG for Logging
#define TOUCHPAD_FILTER_TOUCH_PERIOD (10)
#define TOUCH_PAD_COUNT (4)
#define TOUCH_PAD_ESC (TOUCH_PAD_NUM0)
#define TOUCH_PAD_OK (TOUCH_PAD_NUM6)

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@ -0,0 +1,14 @@
idf_component_register(
SRCS
"beacons.c"
"bluetooth-advertise.c"
"bluetooth-scan.c"
"crypto.c"
"ena.c"
"storage.c"
INCLUDE_DIRS "include"
PRIV_REQUIRES
spi_flash
mbedtls
bt
)

85
components/ena/Kconfig Normal file
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@ -0,0 +1,85 @@
menu "Exposure Notification API"
menu "Storage"
config ENA_STORAGE_DUMP
bool "Dump storage"
default false
help
Dump storage (stored TEKs, temp. beacons and perm. beacons) to serial output after scan.
config ENA_STORAGE_TEK_MAX
int "Max. TEKs"
default 14
help
Defines the maximum number of TEKs to be stored. (Default 14 [14 * 144 => 14 days])
config ENA_STORAGE_TEMP_BEACONS_MAX
int "Max. temporary beacons"
default 1000
help
Defines the maximum number of temporary beacons to be stored. (Default 1000)
config ENA_STORAGE_START_ADDRESS
int "Storage start address"
default 0
help
Defines the start address on partition. (Default 0)
config ENA_STORAGE_PARTITION_NAME
string "Partition name"
default "ena"
help
Name of the partition used for storage. (Default "ena", see partitions.csv)
config ENA_STORAGE_ERASE
bool "Erase storage (!)"
default false
help
Erases the complete(!) partition on startup and reset counters.
endmenu
menu "Scanning"
config ENA_BEACON_TRESHOLD
int "Contact threshold"
default 300
help
Threshold in seconds after a received beacon is stored permanently. (Default 5 minutes)
config ENA_SCANNING_TIME
int "Scanning time"
default 30
help
Time in seconds how long a scan should run. (Default 30 seconds)
config ENA_SCANNING_INTERVAL
int "Scanning interval"
default 300
help
Interval in seconds for the next scan to happen. (Default 5 minutes)
endmenu
menu "Advertising"
config ENA_BT_ROTATION_TIMEOUT_INTERVAL
int "Rotation timeout interval"
default 900
help
Base rotation timeout interval in seconds for changing BT address and therefore the advertised beacon. (Default 5 minutes)
config ENA_BT_RANDOMIZE_ROTATION_TIMEOUT_INTERVAL
int "Randomize rotation timeout interval"
default 150
help
Range in seconds for randomize the rotation timeout interval. (Default +/- ~2.5 minutes)
config ENA_TEK_ROLLING_PERIOD
int "TEK rolling period"
default 144
help
Defines the TEK rolling period in 10 minute steps. (Default 144 => 24 hours)
endmenu
endmenu

119
components/ena/beacons.c Normal file
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@ -0,0 +1,119 @@
// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <string.h>
#include "esp_log.h"
#include "ena-crypto.h"
#include "ena-storage.h"
#include "ena-beacons.h"
static uint32_t temp_beacons_count = 0;
static ena_temp_beacon_t temp_beacons[ENA_STORAGE_TEMP_BEACONS_MAX];
ena_beacon_t ena_beacons_convert(ena_temp_beacon_t temp_beacon)
{
ena_beacon_t beacon;
memcpy(beacon.rpi, temp_beacon.rpi, ENA_KEY_LENGTH);
memcpy(beacon.aem, temp_beacon.aem, ENA_AEM_METADATA_LENGTH);
beacon.timestamp = temp_beacon.timestamp_last;
beacon.rssi = temp_beacon.rssi;
return beacon;
}
int ena_get_temp_beacon_index(uint8_t *rpi, uint8_t *aem)
{
for (int i = 0; i < temp_beacons_count; i++)
{
if (memcmp(temp_beacons[i].rpi, rpi, sizeof(ENA_KEY_LENGTH)) == 0 &&
memcmp(temp_beacons[i].aem, aem, sizeof(ENA_AEM_METADATA_LENGTH)) == 0)
{
return i;
}
}
return -1;
}
void ena_beacons_temp_refresh(uint32_t unix_timestamp)
{
for (int i = temp_beacons_count - 1; i >= 0; i--)
{
// check for treshold and add permanent beacon
if (temp_beacons[i].timestamp_last - temp_beacons[i].timestamp_first >= ENA_BEACON_TRESHOLD)
{
ESP_LOGD(ENA_BEACON_LOG, "create beacon after treshold");
ESP_LOG_BUFFER_HEXDUMP(ENA_BEACON_LOG, temp_beacons[i].rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ena_beacon_t beacon = ena_beacons_convert(temp_beacons[i]);
ena_storage_add_beacon(&beacon);
ena_storage_remove_temp_beacon(i);
}
else
// delete temp beacons older than two times time window (two times to be safe, one times time window enough?!)
if (unix_timestamp - temp_beacons[i].timestamp_last > (ENA_TIME_WINDOW * 2))
{
ESP_LOGD(ENA_BEACON_LOG, "remove old temporary beacon %u", i);
ena_storage_remove_temp_beacon(i);
}
}
// update beacons
temp_beacons_count = ena_storage_temp_beacons_count();
for (int i = 0; i < temp_beacons_count; i++)
{
ena_storage_get_temp_beacon(i, &temp_beacons[i]);
}
#if (CONFIG_ENA_STORAGE_DUMP)
// DEBUG dump
ena_storage_dump_tek();
ena_storage_dump_temp_beacons();
ena_storage_dump_beacons();
#endif
}
void ena_beacon(uint32_t unix_timestamp, uint8_t *rpi, uint8_t *aem, int rssi)
{
uint32_t beacon_index = ena_get_temp_beacon_index(rpi, aem);
if (beacon_index == -1)
{
temp_beacons[temp_beacons_count].timestamp_first = unix_timestamp;
memcpy(temp_beacons[temp_beacons_count].rpi, rpi, ENA_KEY_LENGTH);
memcpy(temp_beacons[temp_beacons_count].aem, aem, ENA_AEM_METADATA_LENGTH);
temp_beacons[temp_beacons_count].rssi = rssi;
temp_beacons[temp_beacons_count].timestamp_last = unix_timestamp;
beacon_index = ena_storage_add_temp_beacon(&temp_beacons[temp_beacons_count]);
ESP_LOGD(ENA_BEACON_LOG, "New temporary beacon at %d with timestamp %u", temp_beacons_count, unix_timestamp);
ESP_LOG_BUFFER_HEX_LEVEL(ENA_BEACON_LOG, rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEX_LEVEL(ENA_BEACON_LOG, aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_BEACON_LOG, "RSSI %d", rssi);
if (beacon_index != temp_beacons_count)
{
ESP_LOGW(ENA_BEACON_LOG, "last temporary beacon index does not match array index!");
}
temp_beacons_count++;
}
else
{
temp_beacons[beacon_index].rssi = (temp_beacons[beacon_index].rssi + rssi) / 2;
temp_beacons[beacon_index].timestamp_last = unix_timestamp;
ESP_LOGD(ENA_BEACON_LOG, "New Timestamp for temporary beacon %d: %u", beacon_index, unix_timestamp);
ESP_LOG_BUFFER_HEX_LEVEL(ENA_BEACON_LOG, rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEX_LEVEL(ENA_BEACON_LOG, aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ena_storage_set_temp_beacon(temp_beacons_count, &temp_beacons[temp_beacons_count]);
}
}

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@ -13,6 +13,7 @@
// limitations under the License.
#include "esp_log.h"
#include "esp_bt.h"
#include "esp_gap_ble_api.h"
#include "ena-crypto.h"

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@ -15,9 +15,10 @@
#include <time.h>
#include "esp_log.h"
#include "esp_gap_ble_api.h"
#include "ena-crypto.h"
#include "ena-detection.h"
#include "ena-beacons.h"
#include "ena-bluetooth-scan.h"
@ -36,6 +37,8 @@ static esp_ble_scan_params_t ena_scan_params = {
void ena_bluetooth_scan_event_callback(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
uint32_t unix_timestamp = (uint32_t)time(NULL);
esp_ble_gap_cb_param_t *p = (esp_ble_gap_cb_param_t *)param;
switch (event)
{
@ -44,7 +47,7 @@ void ena_bluetooth_scan_event_callback(esp_gap_ble_cb_event_t event, esp_ble_gap
break;
case ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT:
ESP_LOGD(ENA_SCAN_LOG, "stopped scanning...");
ena_detections_temp_refresh((uint32_t)time(NULL));
ena_beacons_temp_refresh(unix_timestamp);
break;
case ESP_GAP_BLE_SCAN_RESULT_EVT:
if (p->scan_rst.search_evt == ESP_GAP_SEARCH_INQ_RES_EVT)
@ -56,7 +59,8 @@ void ena_bluetooth_scan_event_callback(esp_gap_ble_cb_event_t event, esp_ble_gap
{
uint8_t service_data_length = 0;
uint8_t *service_data = esp_ble_resolve_adv_data(p->scan_rst.ble_adv, 0x16, &service_data_length);
if (service_data_length != (sizeof(ENA_SERVICE_UUID) + ENA_KEY_LENGTH + ENA_AEM_METADATA_LENGTH)) {
if (service_data_length != (sizeof(ENA_SERVICE_UUID) + ENA_KEY_LENGTH + ENA_AEM_METADATA_LENGTH))
{
ESP_LOGW(ENA_SCAN_LOG, "received ENA Service with invalid payload");
break;
}
@ -65,7 +69,7 @@ void ena_bluetooth_scan_event_callback(esp_gap_ble_cb_event_t event, esp_ble_gap
memcpy(rpi, &service_data[sizeof(ENA_SERVICE_UUID)], ENA_KEY_LENGTH);
uint8_t *aem = malloc(ENA_AEM_METADATA_LENGTH);
memcpy(aem, &service_data[sizeof(ENA_SERVICE_UUID) + ENA_KEY_LENGTH], ENA_AEM_METADATA_LENGTH);
ena_detection((uint32_t)time(NULL), rpi, aem, p->scan_rst.rssi);
ena_beacon(unix_timestamp, rpi, aem, p->scan_rst.rssi);
free(rpi);
free(aem);
}
@ -73,7 +77,7 @@ void ena_bluetooth_scan_event_callback(esp_gap_ble_cb_event_t event, esp_ble_gap
else if (p->scan_rst.search_evt == ESP_GAP_SEARCH_INQ_CMPL_EVT)
{
scan_status = ENA_SCAN_STATUS_NOT_SCANNING;
ena_detections_temp_refresh((uint32_t)time(NULL));
ena_beacons_temp_refresh(unix_timestamp);
ESP_LOGD(ENA_SCAN_LOG, "finished scanning...");
}
break;
@ -87,8 +91,8 @@ void ena_bluetooth_scan_init(void)
{
ESP_ERROR_CHECK(esp_ble_gap_set_scan_params(&ena_scan_params));
ESP_ERROR_CHECK(esp_ble_gap_register_callback(ena_bluetooth_scan_event_callback));
// init temporary detections
ena_detections_temp_refresh((uint32_t)time(NULL));
// init temporary beacons
ena_beacons_temp_refresh((uint32_t)time(NULL));
}
void ena_bluetooth_scan_start(uint32_t duration)

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@ -26,7 +26,6 @@
#include "nvs_flash.h"
#include "ena-datastructures.h"
#include "ena-crypto.h"
#include "ena-storage.h"
#include "ena-bluetooth-scan.h"
@ -39,13 +38,13 @@ static uint32_t next_rpi_timestamp; // next rpi
void ena_next_rpi_timestamp(uint32_t timestamp)
{
int random_interval = esp_random() % (2 * ENA_RPI_ROLLING_RANDOM_INTERVAL);
if (random_interval > ENA_RPI_ROLLING_RANDOM_INTERVAL)
int random_interval = esp_random() % (2 * ENA_BT_RANDOMIZE_ROTATION_TIMEOUT_INTERVAL);
if (random_interval > ENA_BT_RANDOMIZE_ROTATION_TIMEOUT_INTERVAL)
{
random_interval = ENA_RPI_ROLLING_RANDOM_INTERVAL - random_interval;
random_interval = ENA_BT_RANDOMIZE_ROTATION_TIMEOUT_INTERVAL - random_interval;
}
next_rpi_timestamp = timestamp + ENA_RPI_ROLLING_PERIOD + random_interval;
ESP_LOGD(ENA_LOG, "next rpi at %u (%u from %u)", next_rpi_timestamp, (ENA_RPI_ROLLING_PERIOD + random_interval), timestamp);
next_rpi_timestamp = timestamp + ENA_BT_ROTATION_TIMEOUT_INTERVAL + random_interval;
ESP_LOGD(ENA_LOG, "next rpi at %u (%u from %u)", next_rpi_timestamp, (ENA_BT_ROTATION_TIMEOUT_INTERVAL + random_interval), timestamp);
}
void ena_run(void *pvParameter)
@ -56,10 +55,12 @@ void ena_run(void *pvParameter)
{
unix_timestamp = (uint32_t)time(NULL);
current_enin = ena_crypto_enin(unix_timestamp);
if (current_enin - last_tek.enin >= ENA_TEK_ROLLING_PERIOD)
if (current_enin - last_tek.enin >= last_tek.rolling_period)
{
ena_crypto_tek(last_tek.key_data);
last_tek.enin = current_enin;
// validity only to next day 00:00
last_tek.rolling_period = ENA_TEK_ROLLING_PERIOD - (last_tek.enin % ENA_TEK_ROLLING_PERIOD);
ena_storage_write_tek(&last_tek);
}
@ -93,6 +94,9 @@ void ena_run(void *pvParameter)
void ena_start(void)
{
#if (CONFIG_ENA_STORAGE_ERASE)
ena_storage_erase();
#endif
// init NVS for BLE
esp_err_t ret;
ret = nvs_flash_init();
@ -141,17 +145,20 @@ void ena_start(void)
// init ENA
ena_crypto_init();
uint32_t current_enin = ena_crypto_enin((uint32_t)time(NULL));
uint32_t unix_timestamp = (uint32_t)time(NULL);
uint32_t current_enin = ena_crypto_enin(unix_timestamp);
uint32_t tek_count = ena_storage_read_last_tek(&last_tek);
ena_next_rpi_timestamp((uint32_t)time(NULL));
ena_next_rpi_timestamp(unix_timestamp);
// read last TEK or create new
if (tek_count == 0 || (current_enin - last_tek.enin) >= ENA_TEK_ROLLING_PERIOD)
if (tek_count == 0 || (current_enin - last_tek.enin) >= last_tek.rolling_period)
{
ena_crypto_tek(last_tek.key_data);
last_tek.enin = ena_crypto_enin((uint32_t)time(NULL));
last_tek.enin = ena_crypto_enin(unix_timestamp);
// validity only to next day 00:00
last_tek.rolling_period = ENA_TEK_ROLLING_PERIOD - (last_tek.enin % ENA_TEK_ROLLING_PERIOD);
ena_storage_write_tek(&last_tek);
}

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@ -11,37 +11,35 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_BEACON_H_
#define _ena_BEACON_H_
#ifndef _ena_DETECTION_H_
#define _ena_DETECTION_H_
#define ENA_DETECTION_LOG "ESP-ENA-detection" // TAG for Logging
#define ENA_DETECTION_TRESHOLD (300) // meet for longer than 5 minutes
#define ENA_BEACON_LOG "ESP-ENA-beacon" // TAG for Logging
#define ENA_BEACON_TRESHOLD (CONFIG_ENA_BEACON_TRESHOLD) // meet for longer than 5 minutes
/**
* @brief check temporary detection for full detection or expiring
* @brief check temporary beacon for threshold or expiring
*
* This function checks all current temporary detections if the contact threshold is
* This function checks all current temporary beacons if the contact threshold is
* reached or if the temporary contact can be discarded.
*
* @param[in] unix_timestamp current time as UNIX timestamp to compate
*
*/
void ena_detections_temp_refresh(uint32_t unix_timestamp);
void ena_beacons_temp_refresh(uint32_t unix_timestamp);
/**
* @brief handle new detection received from a BLE scan
* @brief handle new beacon received from a BLE scan
*
* This function gets called when a running BLE scan received a new ENA payload.
* On already detected RPI this will update just the timestamp and RSSI.
*
* @param[in] unix_timestamp UNIX timestamp when detection was made
* @param[in] unix_timestamp UNIX timestamp when beacon was made
* @param[in] rpi received RPI from scanned payload
* @param[in] aem received AEM from scanned payload
* @param[in] rssi measured RSSI on scan
*
*/
void ena_detection(uint32_t unix_timestamp, uint8_t *rpi, uint8_t *aem, int rssi);
void ena_beacon(uint32_t unix_timestamp, uint8_t *rpi, uint8_t *aem, int rssi);
#endif

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@ -11,14 +11,9 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_BLUETOOTH_ADVERTISE_H_
#define _ena_BLUETOOTH_ADVERTISE_H_
#include "esp_gap_ble_api.h"
#define ENA_ADVERTISE_LOG "ESP-ENA-advertise" // TAG for Logging
#define ENA_BLUETOOTH_TAG_DATA (0x1A) // Data for BLE payload TAG

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@ -11,16 +11,12 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_BLUETOOTH_SCAN_H_
#define _ena_BLUETOOTH_SCAN_H_
#define ENA_SCAN_LOG "ESP-ENA-scan" // TAG for Logging
#define ENA_SCANNING_TIME (30) // scan for 30 seconds
#define ENA_SCANNING_INTERVAL (300) // scan every 5 minutes
#include "esp_gap_ble_api.h"
#define ENA_SCAN_LOG "ESP-ENA-scan" // TAG for Logging
#define ENA_SCANNING_TIME (CONFIG_ENA_SCANNING_TIME) // time how long a scan should run
#define ENA_SCANNING_INTERVAL (CONFIG_ENA_SCANNING_INTERVAL) // interval for next scan to happen
/**
* @brief status of BLE scan

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@ -11,14 +11,13 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_CRYPTO_H_
#define _ena_CRYPTO_H_
#define ENA_TIME_WINDOW (600) // time window every 10 minutes
#define ENA_KEY_LENGTH (16) // key length
#define ENA_AEM_METADATA_LENGTH (4) // size of metadata
#define ENA_TEK_ROLLING_PERIOD (144) // TEKRollingPeriod
#define ENA_TIME_WINDOW (600) // time window every 10 minutes
#define ENA_KEY_LENGTH (16) // key length
#define ENA_AEM_METADATA_LENGTH (4) // size of metadata
#define ENA_TEK_ROLLING_PERIOD (CONFIG_ENA_TEK_ROLLING_PERIOD) // TEKRollingPeriod
#include <stdio.h>

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@ -0,0 +1,221 @@
// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_STORAGE_H_
#define _ena_STORAGE_H_
#include "ena-crypto.h"
#define ENA_STORAGE_LOG "ESP-ENA-storage" // TAG for Logging
#define ENA_STORAGE_PARTITION_NAME (CONFIG_ENA_STORAGE_PARTITION_NAME) // name of partition to use for storing
#define ENA_STORAGE_START_ADDRESS (CONFIG_ENA_STORAGE_START_ADDRESS) // start address of storage
#define ENA_STORAGE_TEK_MAX (CONFIG_ENA_STORAGE_TEK_MAX) // Period of storing TEKs // length of a stored beacon -> RPI keysize + AEM size + 4 Bytes for ENIN + 4 Bytes for RSSI
#define ENA_STORAGE_TEMP_BEACONS_MAX (CONFIG_ENA_STORAGE_TEMP_BEACONS_MAX) // Maximum number of temporary stored beacons
/**
* @brief structure for TEK
*/
typedef struct __attribute__((__packed__))
{
uint8_t key_data[ENA_KEY_LENGTH]; // key data for encryption
uint32_t enin; // ENIN marking start of validity
uint8_t rolling_period; // period after validity start to mark key as expired
} ena_tek_t;
/**
* @brief sturcture for storing a temporary beacon
*/
typedef struct __attribute__((__packed__))
{
uint8_t rpi[ENA_KEY_LENGTH]; // received RPI of beacon
uint8_t aem[ENA_AEM_METADATA_LENGTH]; // received AEM of beacon
uint32_t timestamp_first; // timestamp of first recognition
uint32_t timestamp_last; // timestamp of last recognition
int rssi; // average measured RSSI
} ena_temp_beacon_t;
/**
* @brief sturcture for permanently storing a beacon after threshold reached
*/
typedef struct __attribute__((__packed__))
{
uint8_t rpi[ENA_KEY_LENGTH]; // received RPI of beacon
uint8_t aem[ENA_AEM_METADATA_LENGTH]; // received AEM of beacon
uint32_t timestamp; // timestamp of last recognition
int rssi; // average measured RSSI
} ena_beacon_t;
/**
* @brief read bytes at given address
*
* @param[in] address the address to read bytes from
* @param[out] data pointer to write the read data
* @param[in] size how many bytes to read
*/
void ena_storage_read(size_t address, void *data, size_t size);
/**
* @brief store bytes at given address
*
* @param[in] address the address to write bytes to
* @param[in] data pointer to the data to write
* @param[in] size how many bytes to write
*/
void ena_storage_write(size_t address, void *data, size_t size);
/**
* @brief deletes bytes at given address and shift other data back
*
* @param[in] address the address to delete from
* @param[in] end_address the address to mark end of shift
* @param[in] size how many bytes to delete
*/
void ena_storage_shift_delete(size_t address, size_t end_address, size_t size);
/**
* @brief get last stored TEK
*
* @param[out] tek pointer to write last TEK to
*
* @return
* total number of TEKs stored
*/
uint32_t ena_storage_read_last_tek(ena_tek_t *tek);
/**
* @brief store given TEK
*
* This will store the given TEK as new TEK.
*
* @param[in] tek the tek to store
*/
void ena_storage_write_tek(ena_tek_t *tek);
/**
* @brief get number of stored temporary beacons
*
* @return
* total number of temporary beacons stored
*/
uint32_t ena_storage_temp_beacons_count(void);
/**
* @brief get temporary beacon at given index
*
* @param[in] index the index of the temporary beacon to read
* @param[out] beacon pointer to temporary to write to
*/
void ena_storage_get_temp_beacon(uint32_t index, ena_temp_beacon_t *beacon);
/**
* @brief store temporary beacon
*
* @param[in] beacon new temporary beacon to store
*
* @return
* index of new stored beacon
*/
uint32_t ena_storage_add_temp_beacon(ena_temp_beacon_t *beacon);
/**
* @brief store temporary beacon at given index
*
* @param[in] index the index of the temporary beacon to overwrite
* @param[in] beacon temporary beacon to store
*/
void ena_storage_set_temp_beacon(uint32_t index, ena_temp_beacon_t *beacon);
/**
* @brief remove temporary beacon at given index
*
* @param[in] index the index of the temporary beacon to remove
*/
void ena_storage_remove_temp_beacon(uint32_t index);
/**
* @brief get number of permanently stored beacons
*
* @return
* total number of beacons stored
*/
uint32_t ena_storage_beacons_count(void);
/**
* @brief get permanently stored beacon at given index
*
* @param[in] index the index of the beacon to read
* @param[out] beacon pointer to to write to
*/
void ena_storage_get_beacon(uint32_t index, ena_beacon_t *beacon);
/**
* @brief permanently store beacon
*
* @param[in] beacon new beacon to permanently store
*/
void ena_storage_add_beacon(ena_beacon_t *beacon);
/**
* @brief erase the storage
*
* This function completely deletes all stored data and resets the counters
* of TEKs, temporary beacon and beacon to zero.
*/
void ena_storage_erase(void);
/**
* @brief erase all stored TEKs
*
* This function deletes all stored TEKs and resets counter to zero.
*/
void ena_storage_erase_tek(void);
/**
* @brief erase all stored temporary beacons
*
* This function deletes all stored temporary beacons and resets counter to zero.
*/
void ena_storage_erase_temporary_beacon(void);
/**
* @brief erase all permanently stored beacons
*
* This function deletes all stored beacons and resets counter to zero.
*/
void ena_storage_erase_beacon(void);
/**
* @brief dump all stored TEKs to serial output
*
* This function prints all stored TEKs to serial output in
* the following CSV format: #,enin,tek
*/
void ena_storage_dump_tek(void);
/**
* @brief dump all stored temporary beacons to serial output
*
* This function prints all stored temporary beacons to serial output in
* the following CSV format: #,timestamp_first,timestamp_last,rpi,aem,rssi
*/
void ena_storage_dump_temp_beacons(void);
/**
* @brief dump all stored beacons to serial output
*
* This function prints all stored beacons to serial output in
* the following CSV format: #,timestamp,rpi,aem,rssi
*/
void ena_storage_dump_beacons(void);
#endif

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@ -11,14 +11,12 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_H_
#define _ena_H_
#define ENA_LOG "ESP-ENA" // TAG for Logging
#define ENA_RPI_ROLLING_PERIOD (900) // change RPI every 15 minutes
#define ENA_RPI_ROLLING_RANDOM_INTERVAL (150) // random intervall change of rpi +/- ~2.5 minutes
#define ENA_LOG "ESP-ENA" // TAG for Logging
#define ENA_BT_ROTATION_TIMEOUT_INTERVAL (CONFIG_ENA_BT_ROTATION_TIMEOUT_INTERVAL) // change advertising payload and therefore the BT address
#define ENA_BT_RANDOMIZE_ROTATION_TIMEOUT_INTERVAL (CONFIG_ENA_BT_RANDOMIZE_ROTATION_TIMEOUT_INTERVAL) // random intervall change for BT address change
/**
* @brief Start Exposure Notification API

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@ -14,27 +14,26 @@
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_partition.h"
#include "esp_spi_flash.h"
#include "esp_log.h"
#include "esp_partition.h"
#include "ena-storage.h"
#include "ena-crypto.h"
#define BLOCK_SIZE (4096)
const int ENA_STORAGE_TEK_COUNT_ADDRESS = (0); // starting address for TEK COUNT
const int ENA_STORAGE_TEK_COUNT_ADDRESS = (ENA_STORAGE_START_ADDRESS); // starting address for TEK COUNT
const int ENA_STORAGE_TEK_START_ADDRESS = (ENA_STORAGE_TEK_COUNT_ADDRESS + sizeof(uint32_t));
const int ENA_STORAGE_TEMP_DETECTIONS_COUNT_ADDRESS = (ENA_STORAGE_TEK_START_ADDRESS + sizeof(ena_tek_t) * ENA_STORAGE_TEK_STORE_PERIOD);
const int ENA_STORAGE_TEMP_DETECTIONS_START_ADDRESS = (ENA_STORAGE_TEMP_DETECTIONS_COUNT_ADDRESS + sizeof(uint32_t));
const int ENA_STORAGE_DETECTIONS_COUNT_ADDRESS = (ENA_STORAGE_TEMP_DETECTIONS_START_ADDRESS + sizeof(ena_temp_detection_t) * ENA_STORAGE_TEMP_DETECTIONS_MAX);
const int ENA_STORAGE_DETECTIONS_START_ADDRESS = (ENA_STORAGE_DETECTIONS_COUNT_ADDRESS + sizeof(uint32_t));
const int ENA_STORAGE_TEMP_BEACONS_COUNT_ADDRESS = (ENA_STORAGE_TEK_START_ADDRESS + sizeof(ena_tek_t) * ENA_STORAGE_TEK_MAX);
const int ENA_STORAGE_TEMP_BEACONS_START_ADDRESS = (ENA_STORAGE_TEMP_BEACONS_COUNT_ADDRESS + sizeof(uint32_t));
const int ENA_STORAGE_BEACONS_COUNT_ADDRESS = (ENA_STORAGE_TEMP_BEACONS_START_ADDRESS + sizeof(ena_temp_beacon_t) * ENA_STORAGE_TEMP_BEACONS_MAX);
const int ENA_STORAGE_BEACONS_START_ADDRESS = (ENA_STORAGE_BEACONS_COUNT_ADDRESS + sizeof(uint32_t));
void ena_storage_read(size_t address, void *data, size_t size)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_read");
const esp_partition_t *partition = esp_partition_find_first(
ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, PARTITION_NAME);
ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, ENA_STORAGE_PARTITION_NAME);
assert(partition);
ESP_ERROR_CHECK(esp_partition_read(partition, address, data, size));
vTaskDelay(1);
@ -51,7 +50,7 @@ void ena_storage_write(size_t address, void *data, size_t size)
if (address + size <= (block_num + 1) * BLOCK_SIZE)
{
const esp_partition_t *partition = esp_partition_find_first(
ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, PARTITION_NAME);
ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, ENA_STORAGE_PARTITION_NAME);
assert(partition);
const int block_start = block_num * BLOCK_SIZE;
const int block_address = address - block_start;
@ -103,7 +102,7 @@ void ena_storage_shift_delete(size_t address, size_t end_address, size_t size)
if (address + size <= (block_num_start + 1) * BLOCK_SIZE)
{
const esp_partition_t *partition = esp_partition_find_first(
ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, PARTITION_NAME);
ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, ENA_STORAGE_PARTITION_NAME);
assert(partition);
int block_num_end = end_address / BLOCK_SIZE;
@ -159,7 +158,7 @@ uint32_t ena_storage_read_last_tek(ena_tek_t *tek)
{
return 0;
}
uint8_t index = (tek_count % ENA_STORAGE_TEK_STORE_PERIOD) - 1;
uint8_t index = (tek_count % ENA_STORAGE_TEK_MAX) - 1;
ena_storage_read(ENA_STORAGE_TEK_START_ADDRESS + index * sizeof(ena_tek_t), tek, sizeof(ena_tek_t));
ESP_LOGD(ENA_STORAGE_LOG, "read last tek %u:", tek->enin);
@ -174,7 +173,7 @@ void ena_storage_write_tek(ena_tek_t *tek)
uint32_t tek_count = 0;
ena_storage_read(ENA_STORAGE_TEK_COUNT_ADDRESS, &tek_count, sizeof(uint32_t));
uint8_t index = (tek_count % ENA_STORAGE_TEK_STORE_PERIOD);
uint8_t index = (tek_count % ENA_STORAGE_TEK_MAX);
ena_storage_write(ENA_STORAGE_TEK_START_ADDRESS + index * sizeof(ena_tek_t), tek, sizeof(ena_tek_t));
tek_count++;
@ -185,116 +184,116 @@ void ena_storage_write_tek(ena_tek_t *tek)
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_write_tek");
}
uint32_t ena_storage_temp_detections_count(void)
uint32_t ena_storage_temp_beacons_count(void)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_temp_detections_count");
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_temp_beacons_count");
uint32_t count = 0;
ena_storage_read(ENA_STORAGE_TEMP_DETECTIONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ena_storage_read(ENA_STORAGE_TEMP_BEACONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "read temp contancts count: %u", count);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_temp_detections_count");
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_temp_beacons_count");
return count;
}
void ena_storage_get_temp_detection(uint32_t index, ena_temp_detection_t *detection)
void ena_storage_get_temp_beacon(uint32_t index, ena_temp_beacon_t *beacon)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_read_temp_detection");
ena_storage_read(ENA_STORAGE_TEMP_DETECTIONS_START_ADDRESS + index * sizeof(ena_temp_detection_t), detection, sizeof(ena_temp_detection_t));
ESP_LOGD(ENA_STORAGE_LOG, "read temp detection: first %u, last %u and rssi %d", detection->timestamp_first, detection->timestamp_last, detection->rssi);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_read_temp_detection");
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_read_temp_beacon");
ena_storage_read(ENA_STORAGE_TEMP_BEACONS_START_ADDRESS + index * sizeof(ena_temp_beacon_t), beacon, sizeof(ena_temp_beacon_t));
ESP_LOGD(ENA_STORAGE_LOG, "read temp beacon: first %u, last %u and rssi %d", beacon->timestamp_first, beacon->timestamp_last, beacon->rssi);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_read_temp_beacon");
}
uint32_t ena_storage_add_temp_detection(ena_temp_detection_t *detection)
uint32_t ena_storage_add_temp_beacon(ena_temp_beacon_t *beacon)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_add_temp_detection");
uint32_t count = ena_storage_temp_detections_count();
// overwrite older temporary detections?!
uint8_t index = count % ENA_STORAGE_TEMP_DETECTIONS_MAX;
ena_storage_set_temp_detection(index, detection);
ESP_LOGD(ENA_STORAGE_LOG, "add temp detection at %u: first %u, last %u and rssi %d", index, detection->timestamp_first, detection->timestamp_last, detection->rssi);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_add_temp_beacon");
uint32_t count = ena_storage_temp_beacons_count();
// overwrite older temporary beacons?!
uint8_t index = count % ENA_STORAGE_TEMP_BEACONS_MAX;
ena_storage_set_temp_beacon(index, beacon);
ESP_LOGD(ENA_STORAGE_LOG, "add temp beacon at %u: first %u, last %u and rssi %d", index, beacon->timestamp_first, beacon->timestamp_last, beacon->rssi);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
count++;
ena_storage_write(ENA_STORAGE_TEMP_DETECTIONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_add_temp_detection");
ena_storage_write(ENA_STORAGE_TEMP_BEACONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_add_temp_beacon");
return count - 1;
}
void ena_storage_set_temp_detection(uint32_t index, ena_temp_detection_t *detection)
void ena_storage_set_temp_beacon(uint32_t index, ena_temp_beacon_t *beacon)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_set_temp_detection");
ena_storage_write(ENA_STORAGE_TEMP_DETECTIONS_START_ADDRESS + index * sizeof(ena_temp_detection_t), detection, sizeof(ena_temp_detection_t));
ESP_LOGD(ENA_STORAGE_LOG, "set temp detection at %u: first %u, last %u and rssi %d", index, detection->timestamp_first, detection->timestamp_last, detection->rssi);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_set_temp_beacon");
ena_storage_write(ENA_STORAGE_TEMP_BEACONS_START_ADDRESS + index * sizeof(ena_temp_beacon_t), beacon, sizeof(ena_temp_beacon_t));
ESP_LOGD(ENA_STORAGE_LOG, "set temp beacon at %u: first %u, last %u and rssi %d", index, beacon->timestamp_first, beacon->timestamp_last, beacon->rssi);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_set_temp_detection");
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_set_temp_beacon");
}
void ena_storage_remove_temp_detection(uint32_t index)
void ena_storage_remove_temp_beacon(uint32_t index)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_remove_temp_detection");
uint32_t count = ena_storage_temp_detections_count();
size_t address_from = ENA_STORAGE_TEMP_DETECTIONS_START_ADDRESS + index * sizeof(ena_temp_detection_t);
size_t address_to = ENA_STORAGE_TEMP_DETECTIONS_START_ADDRESS + count * sizeof(ena_temp_detection_t);
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_remove_temp_beacon");
uint32_t count = ena_storage_temp_beacons_count();
size_t address_from = ENA_STORAGE_TEMP_BEACONS_START_ADDRESS + index * sizeof(ena_temp_beacon_t);
size_t address_to = ENA_STORAGE_TEMP_BEACONS_START_ADDRESS + count * sizeof(ena_temp_beacon_t);
ena_storage_shift_delete(address_from, address_to, sizeof(ena_temp_detection_t));
ena_storage_shift_delete(address_from, address_to, sizeof(ena_temp_beacon_t));
count--;
ena_storage_write(ENA_STORAGE_TEMP_DETECTIONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "remove temp detection: %u", index);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_remove_temp_detection");
ena_storage_write(ENA_STORAGE_TEMP_BEACONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "remove temp beacon: %u", index);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_remove_temp_beacon");
}
uint32_t ena_storage_detections_count(void)
uint32_t ena_storage_beacons_count(void)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_detections_count");
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_beacons_count");
uint32_t count = 0;
ena_storage_read(ENA_STORAGE_DETECTIONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ena_storage_read(ENA_STORAGE_BEACONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "read contancts count: %u", count);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_detections_count");
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_beacons_count");
return count;
}
void ena_storage_get_detection(uint32_t index, ena_detection_t *detection)
void ena_storage_get_beacon(uint32_t index, ena_beacon_t *beacon)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_read_detection");
ena_storage_read(ENA_STORAGE_DETECTIONS_START_ADDRESS + index * sizeof(ena_detection_t), detection, sizeof(ena_detection_t));
ESP_LOGD(ENA_STORAGE_LOG, "read detection: timestamp %u and rssi %d", detection->timestamp, detection->rssi);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_read_detection");
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_read_beacon");
ena_storage_read(ENA_STORAGE_BEACONS_START_ADDRESS + index * sizeof(ena_beacon_t), beacon, sizeof(ena_beacon_t));
ESP_LOGD(ENA_STORAGE_LOG, "read beacon: timestamp %u and rssi %d", beacon->timestamp, beacon->rssi);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_read_beacon");
}
void ena_storage_add_detection(ena_detection_t *detection)
void ena_storage_add_beacon(ena_beacon_t *beacon)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_write_detection");
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
uint32_t count = ena_storage_detections_count();
ena_storage_write(ENA_STORAGE_DETECTIONS_START_ADDRESS + count * sizeof(ena_detection_t), detection, sizeof(ena_detection_t));
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_write_beacon");
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
uint32_t count = ena_storage_beacons_count();
ena_storage_write(ENA_STORAGE_BEACONS_START_ADDRESS + count * sizeof(ena_beacon_t), beacon, sizeof(ena_beacon_t));
count++;
ena_storage_write(ENA_STORAGE_DETECTIONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "write detection: timestamp %u and rssi %d", detection->timestamp, detection->rssi);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, detection->aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_write_detection");
ena_storage_write(ENA_STORAGE_BEACONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "write beacon: timestamp %u and rssi %d", beacon->timestamp, beacon->rssi);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP(ENA_STORAGE_LOG, beacon->aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_write_beacon");
}
void ena_storage_erase(void)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_erase");
const esp_partition_t *partition = esp_partition_find_first(
ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, PARTITION_NAME);
ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, ENA_STORAGE_PARTITION_NAME);
assert(partition);
ESP_ERROR_CHECK(esp_partition_erase_range(partition, 0, partition->size));
ESP_LOGI(ENA_STORAGE_LOG, "erased partition %s!", PARTITION_NAME);
ESP_LOGI(ENA_STORAGE_LOG, "erased partition %s!", ENA_STORAGE_PARTITION_NAME);
uint32_t count = 0;
ena_storage_write(ENA_STORAGE_TEK_COUNT_ADDRESS, &count, sizeof(uint32_t));
ena_storage_write(ENA_STORAGE_TEMP_DETECTIONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ena_storage_write(ENA_STORAGE_DETECTIONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ena_storage_write(ENA_STORAGE_TEMP_BEACONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ena_storage_write(ENA_STORAGE_BEACONS_COUNT_ADDRESS, &count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_erase");
}
@ -305,9 +304,9 @@ void ena_storage_erase_tek(void)
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_erase_teks");
uint32_t tek_count = 0;
ena_storage_read(ENA_STORAGE_TEK_COUNT_ADDRESS, &tek_count, sizeof(uint32_t));
uint8_t stored = ENA_STORAGE_TEK_STORE_PERIOD;
uint8_t stored = ENA_STORAGE_TEK_MAX;
if (tek_count < ENA_STORAGE_TEK_STORE_PERIOD)
if (tek_count < ENA_STORAGE_TEK_MAX)
{
stored = tek_count;
}
@ -320,40 +319,40 @@ void ena_storage_erase_tek(void)
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_erase_teks");
}
void ena_storage_erase_temporary_detection(void)
void ena_storage_erase_temporary_beacon(void)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_erase_temporary_detections");
uint32_t detection_count = 0;
ena_storage_read(ENA_STORAGE_TEMP_DETECTIONS_COUNT_ADDRESS, &detection_count, sizeof(uint32_t));
uint32_t stored = ENA_STORAGE_TEMP_DETECTIONS_MAX;
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_erase_temporary_beacons");
uint32_t beacon_count = 0;
ena_storage_read(ENA_STORAGE_TEMP_BEACONS_COUNT_ADDRESS, &beacon_count, sizeof(uint32_t));
uint32_t stored = ENA_STORAGE_TEMP_BEACONS_MAX;
if (detection_count < ENA_STORAGE_TEMP_DETECTIONS_MAX)
if (beacon_count < ENA_STORAGE_TEMP_BEACONS_MAX)
{
stored = detection_count;
stored = beacon_count;
}
size_t size = sizeof(uint32_t) + stored * sizeof(ena_temp_detection_t);
size_t size = sizeof(uint32_t) + stored * sizeof(ena_temp_beacon_t);
uint8_t *zeros = calloc(size, sizeof(uint8_t));
ena_storage_write(ENA_STORAGE_TEMP_DETECTIONS_COUNT_ADDRESS, zeros, size);
ena_storage_write(ENA_STORAGE_TEMP_BEACONS_COUNT_ADDRESS, zeros, size);
free(zeros);
ESP_LOGI(ENA_STORAGE_LOG, "erased %d temporary detections (size %u at %u)", stored, size, ENA_STORAGE_TEMP_DETECTIONS_COUNT_ADDRESS);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_erase_temporary_detections");
ESP_LOGI(ENA_STORAGE_LOG, "erased %d temporary beacons (size %u at %u)", stored, size, ENA_STORAGE_TEMP_BEACONS_COUNT_ADDRESS);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_erase_temporary_beacons");
}
void ena_storage_erase_detection(void)
void ena_storage_erase_beacon(void)
{
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_erase_detection");
uint32_t detection_count = 0;
ena_storage_read(ENA_STORAGE_DETECTIONS_COUNT_ADDRESS, &detection_count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "START ena_storage_erase_beacon");
uint32_t beacon_count = 0;
ena_storage_read(ENA_STORAGE_BEACONS_COUNT_ADDRESS, &beacon_count, sizeof(uint32_t));
size_t size = sizeof(uint32_t) + detection_count * sizeof(ena_detection_t);
size_t size = sizeof(uint32_t) + beacon_count * sizeof(ena_beacon_t);
uint8_t *zeros = calloc(size, sizeof(uint8_t));
ena_storage_write(ENA_STORAGE_DETECTIONS_COUNT_ADDRESS, zeros, size);
ena_storage_write(ENA_STORAGE_BEACONS_COUNT_ADDRESS, zeros, size);
free(zeros);
ESP_LOGI(ENA_STORAGE_LOG, "erased %d detections (size %u at %u)", detection_count, size, ENA_STORAGE_DETECTIONS_COUNT_ADDRESS);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_erase_detection");
ESP_LOGI(ENA_STORAGE_LOG, "erased %d beacons (size %u at %u)", beacon_count, size, ENA_STORAGE_BEACONS_COUNT_ADDRESS);
ESP_LOGD(ENA_STORAGE_LOG, "END ena_storage_erase_beacon");
}
void ena_storage_dump_hash_array(uint8_t *data, size_t size)
@ -376,15 +375,15 @@ void ena_storage_dump_tek(void)
ena_tek_t tek;
uint32_t tek_count = 0;
ena_storage_read(ENA_STORAGE_TEK_COUNT_ADDRESS, &tek_count, sizeof(uint32_t));
uint8_t stored = ENA_STORAGE_TEK_STORE_PERIOD;
uint8_t stored = ENA_STORAGE_TEK_MAX;
if (tek_count < ENA_STORAGE_TEK_STORE_PERIOD)
if (tek_count < ENA_STORAGE_TEK_MAX)
{
stored = tek_count;
}
ESP_LOGD(ENA_STORAGE_LOG, "%u TEKs (%u stored)\n", tek_count, stored);
printf("#,enin,tek\n");
printf("#,enin,tek,rolling_period\n");
for (int i = 0; i < stored; i++)
{
@ -392,49 +391,49 @@ void ena_storage_dump_tek(void)
ena_storage_read(address, &tek, sizeof(ena_tek_t));
printf("%d,%u,", i, tek.enin);
ena_storage_dump_hash_array(tek.key_data, ENA_KEY_LENGTH);
printf("\n");
printf(",%u\n", tek.rolling_period);
}
}
void ena_storage_dump_temp_detections(void)
void ena_storage_dump_temp_beacons(void)
{
ena_temp_detection_t detection;
uint32_t detection_count = 0;
ena_storage_read(ENA_STORAGE_TEMP_DETECTIONS_COUNT_ADDRESS, &detection_count, sizeof(uint32_t));
uint32_t stored = ENA_STORAGE_TEMP_DETECTIONS_MAX;
ena_temp_beacon_t beacon;
uint32_t beacon_count = 0;
ena_storage_read(ENA_STORAGE_TEMP_BEACONS_COUNT_ADDRESS, &beacon_count, sizeof(uint32_t));
uint32_t stored = ENA_STORAGE_TEMP_BEACONS_MAX;
if (detection_count < ENA_STORAGE_TEMP_DETECTIONS_MAX)
if (beacon_count < ENA_STORAGE_TEMP_BEACONS_MAX)
{
stored = detection_count;
stored = beacon_count;
}
ESP_LOGD(ENA_STORAGE_LOG, "%u temporary detections (%u stored)\n", detection_count, stored);
ESP_LOGD(ENA_STORAGE_LOG, "%u temporary beacons (%u stored)\n", beacon_count, stored);
printf("#,timestamp_first,timestamp_last,rpi,aem,rssi\n");
for (int i = 0; i < stored; i++)
{
ena_storage_get_temp_detection(i, &detection);
printf("%d,%u,%u,", i, detection.timestamp_first, detection.timestamp_last);
ena_storage_dump_hash_array(detection.rpi, ENA_KEY_LENGTH);
ena_storage_get_temp_beacon(i, &beacon);
printf("%d,%u,%u,", i, beacon.timestamp_first, beacon.timestamp_last);
ena_storage_dump_hash_array(beacon.rpi, ENA_KEY_LENGTH);
printf(",");
ena_storage_dump_hash_array(detection.aem, ENA_AEM_METADATA_LENGTH);
printf(",%d\n", detection.rssi);
ena_storage_dump_hash_array(beacon.aem, ENA_AEM_METADATA_LENGTH);
printf(",%d\n", beacon.rssi);
}
}
void ena_storage_dump_detections(void)
void ena_storage_dump_beacons(void)
{
ena_detection_t detection;
uint32_t detection_count = 0;
ena_storage_read(ENA_STORAGE_DETECTIONS_COUNT_ADDRESS, &detection_count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "%u detections\n", detection_count);
ena_beacon_t beacon;
uint32_t beacon_count = 0;
ena_storage_read(ENA_STORAGE_BEACONS_COUNT_ADDRESS, &beacon_count, sizeof(uint32_t));
ESP_LOGD(ENA_STORAGE_LOG, "%u beacons\n", beacon_count);
printf("#,timestamp,rpi,aem,rssi\n");
for (int i = 0; i < detection_count; i++)
for (int i = 0; i < beacon_count; i++)
{
ena_storage_get_detection(i, &detection);
printf("%d,%u,", i, detection.timestamp);
ena_storage_dump_hash_array(detection.rpi, ENA_KEY_LENGTH);
ena_storage_get_beacon(i, &beacon);
printf("%d,%u,", i, beacon.timestamp);
ena_storage_dump_hash_array(beacon.rpi, ENA_KEY_LENGTH);
printf(",");
ena_storage_dump_hash_array(detection.aem, ENA_AEM_METADATA_LENGTH);
printf(",%d\n", detection.rssi);
ena_storage_dump_hash_array(beacon.aem, ENA_AEM_METADATA_LENGTH);
printf(",%d\n", beacon.rssi);
}
}

View File

@ -0,0 +1,7 @@
idf_component_register(
SRCS
"i2c-main.c"
INCLUDE_DIRS "."
PRIV_REQUIRES
driver
)

View File

@ -0,0 +1,39 @@
// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stdio.h>
#include "driver/i2c.h"
#include "i2c-main.h"
static bool i2c_initialized = false;
void i2c_main_init()
{
i2c_config_t i2c_config = {
.mode = I2C_MODE_MASTER,
.sda_io_num = I2C_SDA_PIN,
.scl_io_num = I2C_SCL_PIN,
.sda_pullup_en = GPIO_PULLUP_ENABLE,
.scl_pullup_en = GPIO_PULLUP_ENABLE,
.master.clk_speed = I2C_CLK_SPEED};
ESP_ERROR_CHECK(i2c_param_config(I2C_NUM_0, &i2c_config));
ESP_ERROR_CHECK(i2c_driver_install(I2C_NUM_0, I2C_MODE_MASTER, 0, 0, 0));
}
bool i2c_is_initialized()
{
return i2c_initialized;
}

View File

@ -0,0 +1,35 @@
// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _i2c_main_H_
#define _i2c_main_H_
#define I2C_SDA_PIN (21)
#define I2C_SCL_PIN (22)
#define I2C_CLK_SPEED (1000000)
/**
* @brief initialize main I2C interface
*/
void i2c_main_init();
/**
* @brief check if I2C interface already initialized
*
* @return
* - false I2C not initialized
* - true I2C initialized
*/
bool i2c_is_initialized();
#endif

View File

@ -0,0 +1,7 @@
idf_component_register(
SRCS
"ssd1306.c"
INCLUDE_DIRS "include"
PRIV_REQUIRES
i2c-main
)

View File

@ -0,0 +1,538 @@
// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ssd1306_FONT_H_
#define _ssd1306_FONT_H_
/**
* @brief constant containing a 5x8 ascii font
*/
const uint8_t ascii_font_5x8[256][5] = {
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x00
{0x1E, 0x35, 0x31, 0x35, 0x1E}, // 0x01
{0x1E, 0x35, 0x37, 0x35, 0x1E}, // 0x02
{0x0E, 0x1F, 0x3E, 0x1F, 0x0E}, // 0x03
{0x08, 0x1C, 0x7F, 0x1C, 0x08}, // 0x04
{0x18, 0x4A, 0x7F, 0x4A, 0x18}, // 0x05
{0x1C, 0x4E, 0x7F, 0x4E, 0x1C}, // 0x06
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x07
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x08
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x09
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x0A
{0x38, 0x44, 0x44, 0x47, 0x3B}, // 0x0B
{0x0E, 0x51, 0xF1, 0x51, 0x0E}, // 0x0C
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x0D
{0x60, 0x7E, 0x02, 0x33, 0x3F}, // 0x0E
{0x2A, 0x1C, 0x36, 0x1C, 0x2A}, // 0x0F
{0x3E, 0x1C, 0x1C, 0x08, 0x08}, // 0x10
{0x08, 0x08, 0x1C, 0x1C, 0x3E}, // 0x11
{0x00, 0x22, 0x7F, 0x22, 0x00}, // 0x12
{0x00, 0x2E, 0x00, 0x2E, 0x00}, // 0x13
{0x06, 0x7F, 0x01, 0x7F, 0x00}, // 0x14
{0x00, 0x4A, 0x55, 0x29, 0x00}, // 0x15
{0x00, 0x18, 0x18, 0x18, 0x18}, // 0x16
{0x00, 0x4A, 0x5F, 0x4A, 0x00}, // 0x17
{0x00, 0x02, 0x7F, 0x02, 0x00}, // 0x18
{0x00, 0x20, 0x7F, 0x20, 0x00}, // 0x19
{0x00, 0x08, 0x08, 0x1C, 0x08}, // 0x1A
{0x00, 0x08, 0x1C, 0x08, 0x08}, // 0x1B
{0x00, 0x3C, 0x20, 0x20, 0x20}, // 0x1C
{0x08, 0x1C, 0x08, 0x1C, 0x08}, // 0x1D
{0x20, 0x38, 0x3E, 0x38, 0x20}, // 0x1E
{0x02, 0x0E, 0x3E, 0x0E, 0x02}, // 0x1F
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x20 (Space)
{0x00, 0x00, 0x9E, 0x00, 0x00}, // 0x21 !
{0x00, 0x0E, 0x00, 0x0E, 0x00}, // 0x22 "
{0x28, 0xFE, 0x28, 0xFE, 0x28}, // 0x23 #
{0x48, 0x54, 0xFE, 0x54, 0x24}, // 0x24 $
{0x46, 0x26, 0x10, 0xC8, 0xC4}, // 0x25 %
{0x6C, 0x92, 0xAA, 0x44, 0xA0}, // 0x26 &
{0x00, 0x0A, 0x06, 0x00, 0x00}, // 0x27 '
{0x00, 0x38, 0x44, 0x82, 0x00}, // 0x28 (
{0x00, 0x82, 0x44, 0x38, 0x00}, // 0x29 )
{0x10, 0x54, 0x38, 0x54, 0x10}, // 0x2A *
{0x10, 0x10, 0x7C, 0x10, 0x10}, // 0x2B +
{0x00, 0xA0, 0x60, 0x00, 0x00}, // 0x2C ,
{0x10, 0x10, 0x10, 0x10, 0x10}, // 0x2D -
{0x00, 0x60, 0x60, 0x00, 0x00}, // 0x2E .
{0x40, 0x20, 0x10, 0x08, 0x04}, // 0x2F /
{0x7C, 0xA2, 0x92, 0x8A, 0x7C}, // 0x30 0
{0x00, 0x84, 0xFE, 0x80, 0x00}, // 0x31 1
{0x84, 0xC2, 0xA2, 0x92, 0x8C}, // 0x32 2
{0x42, 0x82, 0x8A, 0x96, 0x62}, // 0x33 3
{0x30, 0x28, 0x24, 0xFE, 0x20}, // 0x34 4
{0x4E, 0x8A, 0x8A, 0x8A, 0x72}, // 0x35 5
{0x78, 0x94, 0x92, 0x92, 0x60}, // 0x36 6
{0x02, 0xE2, 0x12, 0x0A, 0x06}, // 0x37 7
{0x6C, 0x92, 0x92, 0x92, 0x6C}, // 0x38 8
{0x0C, 0x92, 0x92, 0x52, 0x3C}, // 0x39 9
{0x00, 0x6C, 0x6C, 0x00, 0x00}, // 0x3A :
{0x00, 0xAC, 0x6C, 0x00, 0x00}, // 0x3B ;
{0x00, 0x10, 0x28, 0x44, 0x82}, // 0x3C <
{0x28, 0x28, 0x28, 0x28, 0x28}, // 0x3D =
{0x82, 0x44, 0x28, 0x10, 0x00}, // 0x3E >
{0x04, 0x02, 0xA2, 0x12, 0x0C}, // 0x3F ?
{0x64, 0x92, 0xF2, 0x82, 0x7C}, // 0x40 @
{0xFC, 0x22, 0x22, 0x22, 0xFC}, // 0x41 A
{0xFE, 0x92, 0x92, 0x92, 0x6C}, // 0x42 B
{0x7C, 0x82, 0x82, 0x82, 0x44}, // 0x43 C
{0xFE, 0x82, 0x82, 0x44, 0x38}, // 0x44 D
{0xFE, 0x92, 0x92, 0x92, 0x82}, // 0x45 E
{0xFE, 0x12, 0x12, 0x02, 0x02}, // 0x46 F
{0x7C, 0x82, 0x82, 0xA2, 0x64}, // 0x47 G
{0xFE, 0x10, 0x10, 0x10, 0xFE}, // 0x48 H
{0x00, 0x82, 0xFE, 0x82, 0x00}, // 0x49 I
{0x40, 0x80, 0x82, 0x7E, 0x02}, // 0x4A J
{0xFE, 0x10, 0x28, 0x44, 0x82}, // 0x4B K
{0xFE, 0x80, 0x80, 0x80, 0x80}, // 0x4C L
{0xFE, 0x04, 0x08, 0x04, 0xFE}, // 0x4D M
{0xFE, 0x08, 0x10, 0x20, 0xFE}, // 0x4E N
{0x7C, 0x82, 0x82, 0x82, 0x7C}, // 0x4F O
{0xFE, 0x12, 0x12, 0x12, 0x0C}, // 0x50 P
{0x7C, 0x82, 0xA2, 0x42, 0xBC}, // 0x51 Q
{0xFE, 0x12, 0x32, 0x52, 0x8C}, // 0x52 R
{0x8C, 0x92, 0x92, 0x92, 0x62}, // 0x53 S
{0x02, 0x02, 0xFE, 0x02, 0x02}, // 0x54 T
{0x7E, 0x80, 0x80, 0x80, 0x7E}, // 0x55 U
{0x3E, 0x40, 0x80, 0x40, 0x3E}, // 0x56 V
{0xFE, 0x40, 0x30, 0x40, 0xFE}, // 0x57 W
{0xC6, 0x28, 0x10, 0x28, 0xC6}, // 0x58 X
{0x06, 0x08, 0xF0, 0x08, 0x06}, // 0x59 Y
{0xC2, 0xA2, 0x92, 0x8A, 0x86}, // 0x5A Z
{0x00, 0x00, 0xFE, 0x82, 0x82}, // 0x5B [
{0x04, 0x08, 0x10, 0x20, 0x40}, // 0x5C "\"
{0x82, 0x82, 0xFE, 0x00, 0x00}, // 0x5D ]
{0x08, 0x04, 0x02, 0x04, 0x08}, // 0x5E ^
{0x80, 0x80, 0x80, 0x80, 0x80}, // 0x5F _
{0x00, 0x02, 0x04, 0x08, 0x00}, // 0x60 `
{0x40, 0xA8, 0xA8, 0xA8, 0xF0}, // 0x61 a
{0xFE, 0x90, 0x88, 0x88, 0x70}, // 0x62 b
{0x70, 0x88, 0x88, 0x88, 0x40}, // 0x63 c
{0x70, 0x88, 0x88, 0x90, 0xFE}, // 0x64 d
{0x70, 0xA8, 0xA8, 0xA8, 0x30}, // 0x65 e
{0x10, 0xFC, 0x12, 0x02, 0x04}, // 0x66 f
{0x10, 0x28, 0xA8, 0xA8, 0x78}, // 0x67 g
{0xFE, 0x10, 0x08, 0x08, 0xF0}, // 0x68 h
{0x00, 0x88, 0xFA, 0x80, 0x00}, // 0x69 i
{0x40, 0x80, 0x88, 0x7A, 0x00}, // 0x6A j
{0x00, 0xFE, 0x20, 0x50, 0x88}, // 0x6B k
{0x00, 0x82, 0xFE, 0x80, 0x00}, // 0x6C l
{0xF8, 0x08, 0x30, 0x08, 0xF0}, // 0x6D m
{0xF8, 0x10, 0x08, 0x08, 0xF0}, // 0x6E n
{0x70, 0x88, 0x88, 0x88, 0x70}, // 0x6F o
{0xF8, 0x28, 0x28, 0x28, 0x10}, // 0x70 p
{0x10, 0x28, 0x28, 0x30, 0xF8}, // 0x71 q
{0xF8, 0x10, 0x08, 0x08, 0x10}, // 0x72 r
{0x90, 0xA8, 0xA8, 0xA8, 0x40}, // 0x73 s
{0x08, 0x7E, 0x88, 0x80, 0x40}, // 0x74 t
{0x78, 0x80, 0x80, 0x40, 0xF8}, // 0x75 u
{0x38, 0x40, 0x80, 0x40, 0x38}, // 0x76 v
{0x78, 0x80, 0x60, 0x80, 0x78}, // 0x77 w
{0x88, 0x50, 0x20, 0x50, 0x88}, // 0x78 x
{0x18, 0xA0, 0xA0, 0xA0, 0x78}, // 0x79 y
{0x88, 0xC8, 0xA8, 0x98, 0x88}, // 0x7A z
{0x00, 0x10, 0x6C, 0x82, 0x00}, // 0x7B {
{0x00, 0x00, 0xFE, 0x00, 0x00}, // 0x7C |
{0x00, 0x82, 0x6C, 0x10, 0x00}, // 0x7D }
{0x20, 0x10, 0x10, 0x20, 0x10}, // 0x7E
{0xF0, 0x88, 0x84, 0x88, 0xF0}, // 0x7F 
{0x28, 0x7C, 0xAA, 0x82, 0x44}, // 0x80 €
{0xF0, 0x29, 0x27, 0x21, 0xFF}, // 0x81 
{0x00, 0xA0, 0x60, 0x00, 0x00}, // 0x82
{0x40, 0x90, 0x7C, 0x12, 0x04}, // 0x83 ƒ
{0xC0, 0xA0, 0x00, 0xC0, 0xA0}, // 0x84 „
{0x80, 0x00, 0x80, 0x00, 0x80}, // 0x85 …
{0x00, 0x04, 0xFE, 0x04, 0x00}, // 0x86 †
{0x00, 0x44, 0xFE, 0x44, 0x00}, // 0x87 ‡
{0x00, 0x04, 0x02, 0x04, 0x00}, // 0x88 ˆ
{0xC3, 0xD3, 0x08, 0xC4, 0xC2}, // 0x89 ‰
{0x4C, 0x93, 0x92, 0x93, 0x64}, // 0x8A Š
{0x00, 0x10, 0x28, 0x00, 0x00}, // 0x8B
{0x7C, 0x82, 0x82, 0x7C, 0x92}, // 0x8C Œ
{0x02, 0xFE, 0x90, 0x90, 0x60}, // 0x8D 
{0xC2, 0xA3, 0x92, 0x8B, 0x86}, // 0x8E Ž
{0x44, 0x92, 0x8A, 0x92, 0x7C}, // 0x8F 
{0x70, 0x88, 0x90, 0x60, 0x98}, // 0x90 
{0x00, 0x02, 0x04, 0x08, 0x00}, // 0x91
{0x00, 0x08, 0x04, 0x02, 0x00}, // 0x92
{0x02, 0x04, 0x0A, 0x04, 0x08}, // 0x93 “
{0x08, 0x04, 0x0A, 0x04, 0x02}, // 0x94 ”
{0x00, 0x38, 0x38, 0x38, 0x00}, // 0x95 •
{0x00, 0x10, 0x10, 0x10, 0x10}, // 0x96
{0x10, 0x10, 0x10, 0x10, 0x10}, // 0x97 —
{0x02, 0x01, 0x02, 0x04, 0x02}, // 0x98 ˜
{0xF1, 0x5B, 0x55, 0x51, 0x51}, // 0x99 ™
{0x90, 0xA9, 0xAA, 0xA9, 0x40}, // 0x9A š
{0x00, 0x88, 0x50, 0x20, 0x00}, // 0x9B
{0x70, 0x88, 0x70, 0xA8, 0xB0}, // 0x9C ϡ
{0x38, 0x7C, 0xF8, 0x7C, 0x38}, // 0x9D 
{0x88, 0xC9, 0xAA, 0x99, 0x88}, // 0x9E ž
{0x1C, 0x21, 0xC0, 0x21, 0x1C}, // 0x9F Ÿ
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0xA0
{0x00, 0x00, 0xF2, 0x00, 0x00}, // 0xA1 ¡
{0x38, 0x44, 0xFE, 0x44, 0x20}, // 0xA2 ¢
{0x90, 0x7C, 0x92, 0x82, 0x40}, // 0xA3 £
{0x44, 0x38, 0x28, 0x38, 0x44}, // 0xA4 ¤
{0x2A, 0x2C, 0xF8, 0x2C, 0x2A}, // 0xA5 ¥
{0x00, 0x00, 0xEE, 0x00, 0x00}, // 0xA6 ¦
{0x40, 0x94, 0xAA, 0x52, 0x04}, // 0xA7 §
{0x00, 0x02, 0x00, 0x02, 0x00}, // 0xA8 ¨
{0xFE, 0x82, 0xBA, 0x92, 0xFE}, // 0xA9 ©
{0x90, 0xAA, 0xAA, 0xAA, 0xBC}, // 0xAA ª
{0x20, 0x50, 0xA8, 0x50, 0x88}, // 0xAB «
{0x20, 0x20, 0x20, 0x20, 0xE0}, // 0xAC ¬
{0x20, 0x20, 0x20, 0x20, 0x20}, // 0xAD ­
{0xFE, 0x82, 0xCA, 0xA2, 0xFE}, // 0xAE ®
{0x02, 0x02, 0x02, 0x02, 0x02}, // 0xAF ¯
{0x0E, 0x11, 0x11, 0x0E, 0x00}, // 0xB0 °
{0x88, 0x88, 0xBE, 0x88, 0x88}, // 0xB1 ±
{0x12, 0x19, 0x15, 0x12, 0x00}, // 0xB2 ²
{0x11, 0x15, 0x15, 0x0A, 0x00}, // 0xB3 ³
{0x00, 0x08, 0x04, 0x02, 0x00}, // 0xB4 ´
{0xFE, 0x20, 0x20, 0x10, 0x3E}, // 0xB5 µ
{0x0C, 0x12, 0x12, 0xFE, 0xFE}, // 0xB6 ¶
{0x00, 0x30, 0x30, 0x00, 0x00}, // 0xB7 ·
{0x00, 0x80, 0xB0, 0x40, 0x00}, // 0xB8 ¸
{0x00, 0x02, 0x0F, 0x00, 0x00}, // 0xB9 ¹
{0x00, 0x02, 0x05, 0x02, 0x00}, // 0xBA º
{0x44, 0x28, 0x54, 0x28, 0x10}, // 0xBB »
{0x22, 0x1F, 0x68, 0x54, 0xFA}, // 0xBC ¼
{0x02, 0x1F, 0x90, 0xC8, 0xB0}, // 0xBD ½
{0x15, 0x1F, 0x60, 0x50, 0xF8}, // 0xBE ¾
{0x60, 0x90, 0x8A, 0x80, 0x40}, // 0xBF ¿
{0xF0, 0x29, 0x26, 0x28, 0xF0}, // 0xC0 À
{0xF0, 0x28, 0x26, 0x29, 0xF0}, // 0xC1 Á
{0xF0, 0x2A, 0x29, 0x2A, 0xF0}, // 0xC2 Â
{0xF2, 0x29, 0x29, 0x2A, 0xF1}, // 0xC3 Ã
{0xF0, 0x29, 0x24, 0x29, 0xF0}, // 0xC4 Ä
{0xF0, 0x2A, 0x2D, 0x2A, 0xF0}, // 0xC5 Å
{0xF8, 0x24, 0xFE, 0x92, 0x92}, // 0xC6 Æ
{0x1E, 0x21, 0xA1, 0xE1, 0x12}, // 0xC7 Ç
{0xF8, 0xA9, 0xAA, 0xA8, 0x88}, // 0xC8 È
{0xF8, 0xA8, 0xAA, 0xA9, 0x88}, // 0xC9 É
{0xF8, 0xAA, 0xA9, 0xAA, 0x88}, // 0xCA Ê
{0xF8, 0xAA, 0xA8, 0xAA, 0x88}, // 0xCB Ë
{0x00, 0x89, 0xFA, 0x88, 0x00}, // 0xCC Ì
{0x00, 0x88, 0xFA, 0x89, 0x00}, // 0xCD Í
{0x00, 0x8A, 0xF9, 0x8A, 0x00}, // 0xCE Î
{0x00, 0x8A, 0xF8, 0x8A, 0x00}, // 0xCF Ï
{0x10, 0xFE, 0x92, 0x82, 0x7C}, // 0xD0 Ð
{0xFA, 0x11, 0x21, 0x42, 0xF9}, // 0xD1 Ñ
{0x78, 0x85, 0x86, 0x84, 0x78}, // 0xD2 Ò
{0x78, 0x84, 0x86, 0x85, 0x78}, // 0xD3 Ó
{0x70, 0x8A, 0x89, 0x8A, 0x70}, // 0xD4 Ô
{0x72, 0x89, 0x89, 0x8A, 0x71}, // 0xD5 Õ
{0x78, 0x85, 0x84, 0x85, 0x78}, // 0xD6 Ö
{0x44, 0x28, 0x10, 0x28, 0x44}, // 0xD7 ×
{0x10, 0xAA, 0xFE, 0xAA, 0x10}, // 0xD8 Ø
{0x7C, 0x81, 0x82, 0x80, 0x7C}, // 0xD9 Ù
{0x7C, 0x80, 0x82, 0x81, 0x7C}, // 0xDA Ú
{0x78, 0x82, 0x81, 0x82, 0x78}, // 0xDB Û
{0x7C, 0x81, 0x80, 0x81, 0x7C}, // 0xDC Ü
{0x04, 0x08, 0xF2, 0x09, 0x04}, // 0xDD Ý
{0x81, 0xFF, 0x24, 0x24, 0x18}, // 0xDE Þ
{0x80, 0x7C, 0x92, 0x92, 0x6C}, // 0xDF ß
{0x40, 0xA9, 0xAA, 0xA8, 0xF0}, // 0xE0 à
{0x40, 0xA8, 0xAA, 0xA9, 0xF0}, // 0xE1 á
{0x40, 0xAA, 0xA9, 0xAA, 0xF0}, // 0xE2 â
{0x42, 0xA9, 0xA9, 0xAA, 0xF1}, // 0xE3 ã
{0x40, 0xAA, 0xA8, 0xAA, 0xF0}, // 0xE4 ä
{0x40, 0xAA, 0xAD, 0xAA, 0xF0}, // 0xE5 å
{0x64, 0x94, 0x78, 0x94, 0x58}, // 0xE6 æ
{0x18, 0x24, 0xA4, 0xE4, 0x10}, // 0xE7 ç
{0x70, 0xA9, 0xAA, 0xA8, 0x30}, // 0xE8 è
{0x70, 0xA8, 0xAA, 0xA9, 0x30}, // 0xE9 é
{0x70, 0xAA, 0xA9, 0xAA, 0x30}, // 0xEA ê
{0x70, 0xAA, 0xA8, 0xAA, 0x30}, // 0xEB ë
{0x00, 0x91, 0xFA, 0x80, 0x00}, // 0xEC ì
{0x00, 0x90, 0xFA, 0x81, 0x00}, // 0xED í
{0x00, 0x92, 0xF9, 0x82, 0x00}, // 0xEE î
{0x00, 0x92, 0xF8, 0x82, 0x00}, // 0xEF ï
{0x4A, 0xA4, 0xAA, 0xB0, 0x60}, // 0xF0 ð
{0xFA, 0x11, 0x09, 0x0A, 0xF1}, // 0xF1 ñ
{0x70, 0x89, 0x8A, 0x88, 0x70}, // 0xF2 ò
{0x70, 0x88, 0x8A, 0x89, 0x70}, // 0xF3 ó
{0x60, 0x94, 0x92, 0x94, 0x60}, // 0xF4 ô
{0x64, 0x92, 0x92, 0x94, 0x62}, // 0xF5 õ
{0x70, 0x8A, 0x88, 0x8A, 0x70}, // 0xF6 ö
{0x10, 0x10, 0x54, 0x10, 0x10}, // 0xF7 ÷
{0x10, 0xA8, 0x7C, 0x2A, 0x10}, // 0xF8 ø
{0x78, 0x81, 0x82, 0x40, 0xF8}, // 0xF9 ù
{0x78, 0x80, 0x82, 0x41, 0xF8}, // 0xFA ú
{0x78, 0x82, 0x81, 0x42, 0xF8}, // 0xFB û
{0x78, 0x82, 0x80, 0x42, 0xF8}, // 0xFC ü
{0x18, 0xA0, 0xA4, 0xA2, 0x78}, // 0xFD v
{0x00, 0x82, 0xFE, 0xA8, 0x10}, // 0xFE þ
{0x18, 0xA2, 0xA0, 0xA2, 0x78} // 0xFF ÿ
};
const uint8_t ascii_font_8x8[256][8] = {
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x00
{0x7E, 0x81, 0x95, 0xB1, 0xB1, 0x95, 0x81, 0x7E}, // 0x01
{0x7E, 0xFF, 0xEB, 0xCF, 0xCF, 0xEB, 0xFF, 0x7E}, // 0x02
{0x0E, 0x1F, 0x3F, 0x7E, 0x3F, 0x1F, 0x0E, 0x00}, // 0x03
{0x08, 0x1C, 0x3E, 0x7F, 0x3E, 0x1C, 0x08, 0x00}, // 0x04
{0x38, 0x3A, 0x9F, 0xFF, 0x9F, 0x3A, 0x38, 0x00}, // 0x05
{0x10, 0x38, 0xBC, 0xFF, 0xBC, 0x38, 0x10, 0x00}, // 0x06
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x07
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x08
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x09
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x0A
{0x70, 0xF8, 0x88, 0x88, 0xFD, 0x7F, 0x07, 0x0F}, // 0x0B
{0x00, 0x4E, 0x5F, 0xF1, 0xF1, 0x5F, 0x4E, 0x00}, // 0x0C
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x0D
{0xC0, 0xFF, 0x7F, 0x05, 0x05, 0x65, 0x7F, 0x3F}, // 0x0E
{0x99, 0x5A, 0x3C, 0xE7, 0xE7, 0x3C, 0x5A, 0x99}, // 0x0F
{0x7F, 0x3E, 0x3E, 0x1C, 0x1C, 0x08, 0x08, 0x00}, // 0x10
{0x08, 0x08, 0x1C, 0x1C, 0x3E, 0x3E, 0x7F, 0x00}, // 0x11
{0x00, 0x24, 0x66, 0xFF, 0xFF, 0x66, 0x24, 0x00}, // 0x12
{0x00, 0x5F, 0x5F, 0x00, 0x00, 0x5F, 0x5F, 0x00}, // 0x13
{0x06, 0x0F, 0x09, 0x7F, 0x7F, 0x01, 0x7F, 0x7F}, // 0x14
{0xDA, 0xBF, 0xA5, 0xA5, 0xFD, 0x59, 0x03, 0x02}, // 0x15
{0x00, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x00}, // 0x16
{0x80, 0x94, 0xB6, 0xFF, 0xFF, 0xB6, 0x94, 0x80}, // 0x17
{0x00, 0x04, 0x06, 0x7F, 0x7F, 0x06, 0x04, 0x00}, // 0x18
{0x00, 0x10, 0x30, 0x7F, 0x7F, 0x30, 0x10, 0x00}, // 0x19
{0x08, 0x08, 0x08, 0x2A, 0x3E, 0x1C, 0x08, 0x00}, // 0x1A
{0x08, 0x1C, 0x3E, 0x2A, 0x08, 0x08, 0x08, 0x00}, // 0x1B
{0x3C, 0x3C, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00}, // 0x1C
{0x08, 0x1C, 0x3E, 0x08, 0x08, 0x3E, 0x1C, 0x08}, // 0x1D
{0x30, 0x38, 0x3C, 0x3E, 0x3E, 0x3C, 0x38, 0x30}, // 0x1E
{0x06, 0x0E, 0x1E, 0x3E, 0x3E, 0x1E, 0x0E, 0x06}, // 0x1F
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x20
{0x00, 0x06, 0x5F, 0x5F, 0x06, 0x00, 0x00, 0x00}, // 0x21
{0x00, 0x07, 0x07, 0x00, 0x07, 0x07, 0x00, 0x00}, // 0x22
{0x14, 0x7F, 0x7F, 0x14, 0x7F, 0x7F, 0x14, 0x00}, // 0x23
{0x24, 0x2E, 0x6B, 0x6B, 0x3A, 0x12, 0x00, 0x00}, // 0x24
{0x46, 0x66, 0x30, 0x18, 0x0C, 0x66, 0x62, 0x00}, // 0x25
{0x30, 0x7A, 0x4F, 0x5D, 0x37, 0x7A, 0x48, 0x00}, // 0x26
{0x04, 0x07, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x27
{0x00, 0x1C, 0x3E, 0x63, 0x41, 0x00, 0x00, 0x00}, // 0x28
{0x00, 0x41, 0x63, 0x3E, 0x1C, 0x00, 0x00, 0x00}, // 0x29
{0x08, 0x2A, 0x3E, 0x1C, 0x1C, 0x3E, 0x2A, 0x08}, // 0x2A
{0x08, 0x08, 0x3E, 0x3E, 0x08, 0x08, 0x00, 0x00}, // 0x2B
{0x00, 0xA0, 0xE0, 0x60, 0x00, 0x00, 0x00, 0x00}, // 0x2C
{0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00}, // 0x2D
{0x00, 0x00, 0x60, 0x60, 0x00, 0x00, 0x00, 0x00}, // 0x2E
{0x60, 0x30, 0x18, 0x0C, 0x06, 0x03, 0x01, 0x00}, // 0x2F
{0x3E, 0x7F, 0x59, 0x4D, 0x7F, 0x3E, 0x00, 0x00}, // 0x30
{0x42, 0x42, 0x7F, 0x7F, 0x40, 0x40, 0x00, 0x00}, // 0x31
{0x62, 0x73, 0x59, 0x49, 0x6F, 0x66, 0x00, 0x00}, // 0x32
{0x22, 0x63, 0x49, 0x49, 0x7F, 0x36, 0x00, 0x00}, // 0x33
{0x18, 0x1C, 0x16, 0x13, 0x7F, 0x7F, 0x10, 0x00}, // 0x34
{0x27, 0x67, 0x45, 0x45, 0x7D, 0x39, 0x00, 0x00}, // 0x35
{0x3C, 0x7E, 0x4B, 0x49, 0x79, 0x30, 0x00, 0x00}, // 0x36
{0x03, 0x63, 0x71, 0x19, 0x0F, 0x07, 0x00, 0x00}, // 0x37
{0x36, 0x7F, 0x49, 0x49, 0x7F, 0x36, 0x00, 0x00}, // 0x38
{0x06, 0x4F, 0x49, 0x69, 0x3F, 0x1E, 0x00, 0x00}, // 0x39
{0x00, 0x00, 0x6C, 0x6C, 0x00, 0x00, 0x00, 0x00}, // 0x3A
{0x00, 0xA0, 0xEC, 0x6C, 0x00, 0x00, 0x00, 0x00}, // 0x3B
{0x08, 0x1C, 0x36, 0x63, 0x41, 0x00, 0x00, 0x00}, // 0x3C
{0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x00, 0x00}, // 0x3D
{0x00, 0x41, 0x63, 0x36, 0x1C, 0x08, 0x00, 0x00}, // 0x3E
{0x02, 0x03, 0x51, 0x59, 0x0F, 0x06, 0x00, 0x00}, // 0x3F
{0x3E, 0x7F, 0x41, 0x5D, 0x5D, 0x1F, 0x1E, 0x00}, // 0x40
{0x7C, 0x7E, 0x13, 0x13, 0x7E, 0x7C, 0x00, 0x00}, // 0x41
{0x41, 0x7F, 0x7F, 0x49, 0x49, 0x7F, 0x36, 0x00}, // 0x42
{0x1C, 0x3E, 0x63, 0x41, 0x41, 0x63, 0x22, 0x00}, // 0x43
{0x41, 0x7F, 0x7F, 0x41, 0x63, 0x7F, 0x1C, 0x00}, // 0x44
{0x41, 0x7F, 0x7F, 0x49, 0x5D, 0x41, 0x63, 0x00}, // 0x45
{0x41, 0x7F, 0x7F, 0x49, 0x1D, 0x01, 0x03, 0x00}, // 0x46
{0x1C, 0x3E, 0x63, 0x41, 0x51, 0x73, 0x72, 0x00}, // 0x47
{0x7F, 0x7F, 0x08, 0x08, 0x7F, 0x7F, 0x00, 0x00}, // 0x48
{0x00, 0x41, 0x7F, 0x7F, 0x41, 0x00, 0x00, 0x00}, // 0x49
{0x30, 0x70, 0x40, 0x41, 0x7F, 0x3F, 0x01, 0x00}, // 0x4A
{0x41, 0x7F, 0x7F, 0x08, 0x1C, 0x77, 0x63, 0x00}, // 0x4B
{0x41, 0x7F, 0x7F, 0x41, 0x40, 0x60, 0x70, 0x00}, // 0x4C
{0x7F, 0x7F, 0x06, 0x0C, 0x06, 0x7F, 0x7F, 0x00}, // 0x4D
{0x7F, 0x7F, 0x06, 0x0C, 0x18, 0x7F, 0x7F, 0x00}, // 0x4E
{0x1C, 0x3E, 0x63, 0x41, 0x63, 0x3E, 0x1C, 0x00}, // 0x4F
{0x41, 0x7F, 0x7F, 0x49, 0x09, 0x0F, 0x06, 0x00}, // 0x50
{0x1E, 0x3F, 0x21, 0x71, 0x7F, 0x5E, 0x00, 0x00}, // 0x51
{0x41, 0x7F, 0x7F, 0x19, 0x39, 0x6F, 0x46, 0x00}, // 0x52
{0x26, 0x67, 0x4D, 0x59, 0x7B, 0x32, 0x00, 0x00}, // 0x53
{0x03, 0x41, 0x7F, 0x7F, 0x41, 0x03, 0x00, 0x00}, // 0x54
{0x7F, 0x7F, 0x40, 0x40, 0x7F, 0x7F, 0x00, 0x00}, // 0x55
{0x1F, 0x3F, 0x60, 0x60, 0x3F, 0x1F, 0x00, 0x00}, // 0x56
{0x7F, 0x7F, 0x30, 0x18, 0x30, 0x7F, 0x7F, 0x00}, // 0x57
{0x63, 0x77, 0x1C, 0x08, 0x1C, 0x77, 0x63, 0x00}, // 0x58
{0x07, 0x4F, 0x78, 0x78, 0x4F, 0x07, 0x00, 0x00}, // 0x59
{0x67, 0x73, 0x59, 0x4D, 0x47, 0x63, 0x71, 0x00}, // 0x5A
{0x00, 0x7F, 0x7F, 0x41, 0x41, 0x00, 0x00, 0x00}, // 0x5B
{0x01, 0x03, 0x06, 0x0C, 0x18, 0x30, 0x60, 0x00}, // 0x5C
{0x00, 0x41, 0x41, 0x7F, 0x7F, 0x00, 0x00, 0x00}, // 0x5D
{0x08, 0x0C, 0x06, 0x03, 0x06, 0x0C, 0x08, 0x00}, // 0x5E
{0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80}, // 0x5F
{0x00, 0x00, 0x03, 0x07, 0x04, 0x00, 0x00, 0x00}, // 0x60
{0x20, 0x74, 0x54, 0x54, 0x3C, 0x78, 0x40, 0x00}, // 0x61
{0x41, 0x3F, 0x7F, 0x44, 0x44, 0x7C, 0x38, 0x00}, // 0x62
{0x38, 0x7C, 0x44, 0x44, 0x6C, 0x28, 0x00, 0x00}, // 0x63
{0x30, 0x78, 0x48, 0x49, 0x3F, 0x7F, 0x40, 0x00}, // 0x64
{0x38, 0x7C, 0x54, 0x54, 0x5C, 0x18, 0x00, 0x00}, // 0x65
{0x48, 0x7E, 0x7F, 0x49, 0x03, 0x02, 0x00, 0x00}, // 0x66
{0x98, 0xBC, 0xA4, 0xA4, 0xF8, 0x7C, 0x04, 0x00}, // 0x67
{0x41, 0x7F, 0x7F, 0x08, 0x04, 0x7C, 0x78, 0x00}, // 0x68
{0x00, 0x44, 0x7D, 0x7D, 0x40, 0x00, 0x00, 0x00}, // 0x69
{0x40, 0xC4, 0x84, 0xFD, 0x7D, 0x00, 0x00, 0x00}, // 0x6A
{0x41, 0x7F, 0x7F, 0x10, 0x38, 0x6C, 0x44, 0x00}, // 0x6B
{0x00, 0x41, 0x7F, 0x7F, 0x40, 0x00, 0x00, 0x00}, // 0x6C
{0x7C, 0x7C, 0x0C, 0x18, 0x0C, 0x7C, 0x78, 0x00}, // 0x6D
{0x7C, 0x7C, 0x04, 0x04, 0x7C, 0x78, 0x00, 0x00}, // 0x6E
{0x38, 0x7C, 0x44, 0x44, 0x7C, 0x38, 0x00, 0x00}, // 0x6F
{0x84, 0xFC, 0xF8, 0xA4, 0x24, 0x3C, 0x18, 0x00}, // 0x70
{0x18, 0x3C, 0x24, 0xA4, 0xF8, 0xFC, 0x84, 0x00}, // 0x71
{0x44, 0x7C, 0x78, 0x44, 0x1C, 0x18, 0x00, 0x00}, // 0x72
{0x48, 0x5C, 0x54, 0x54, 0x74, 0x24, 0x00, 0x00}, // 0x73
{0x00, 0x04, 0x3E, 0x7F, 0x44, 0x24, 0x00, 0x00}, // 0x74
{0x3C, 0x7C, 0x40, 0x40, 0x3C, 0x7C, 0x40, 0x00}, // 0x75
{0x1C, 0x3C, 0x60, 0x60, 0x3C, 0x1C, 0x00, 0x00}, // 0x76
{0x3C, 0x7C, 0x60, 0x30, 0x60, 0x7C, 0x3C, 0x00}, // 0x77
{0x44, 0x6C, 0x38, 0x10, 0x38, 0x6C, 0x44, 0x00}, // 0x78
{0x9C, 0xBC, 0xA0, 0xA0, 0xFC, 0x7C, 0x00, 0x00}, // 0x79
{0x4C, 0x64, 0x74, 0x5C, 0x4C, 0x64, 0x00, 0x00}, // 0x7A
{0x08, 0x08, 0x3E, 0x77, 0x41, 0x41, 0x00, 0x00}, // 0x7B
{0x00, 0x00, 0x00, 0x77, 0x77, 0x00, 0x00, 0x00}, // 0x7C
{0x41, 0x41, 0x77, 0x3E, 0x08, 0x08, 0x00, 0x00}, // 0x7D
{0x02, 0x03, 0x01, 0x03, 0x02, 0x03, 0x01, 0x00}, // 0x7E
{0x78, 0x7C, 0x46, 0x43, 0x46, 0x7C, 0x78, 0x00}, // 0x7F
{0x1E, 0xBF, 0xE1, 0x61, 0x33, 0x12, 0x00, 0x00}, // 0x80
{0x3A, 0x7A, 0x40, 0x40, 0x7A, 0x7A, 0x40, 0x00}, // 0x81
{0x38, 0x7C, 0x56, 0x57, 0x5D, 0x18, 0x00, 0x00}, // 0x82
{0x02, 0x23, 0x75, 0x55, 0x55, 0x7D, 0x7B, 0x42}, // 0x83
{0x21, 0x75, 0x54, 0x54, 0x7D, 0x79, 0x40, 0x00}, // 0x84
{0x20, 0x75, 0x57, 0x56, 0x7C, 0x78, 0x40, 0x00}, // 0x85
{0x00, 0x22, 0x77, 0x55, 0x55, 0x7F, 0x7A, 0x40}, // 0x86
{0x1C, 0xBE, 0xE2, 0x62, 0x36, 0x14, 0x00, 0x00}, // 0x87
{0x02, 0x3B, 0x7D, 0x55, 0x55, 0x5D, 0x1B, 0x02}, // 0x88
{0x39, 0x7D, 0x54, 0x54, 0x5D, 0x19, 0x00, 0x00}, // 0x89
{0x38, 0x7D, 0x57, 0x56, 0x5C, 0x18, 0x00, 0x00}, // 0x8A
{0x01, 0x45, 0x7C, 0x7C, 0x41, 0x01, 0x00, 0x00}, // 0x8B
{0x02, 0x03, 0x45, 0x7D, 0x7D, 0x43, 0x02, 0x00}, // 0x8C
{0x00, 0x45, 0x7F, 0x7E, 0x40, 0x00, 0x00, 0x00}, // 0x8D
{0x79, 0x7D, 0x26, 0x26, 0x7D, 0x79, 0x00, 0x00}, // 0x8E
{0x70, 0x7A, 0x2D, 0x2D, 0x7A, 0x70, 0x00, 0x00}, // 0x8F
{0x44, 0x7C, 0x7E, 0x57, 0x55, 0x44, 0x00, 0x00}, // 0x90
{0x20, 0x74, 0x54, 0x54, 0x7C, 0x7C, 0x54, 0x54}, // 0x91
{0x7C, 0x7E, 0x0B, 0x09, 0x7F, 0x7F, 0x49, 0x00}, // 0x92
{0x32, 0x7B, 0x49, 0x49, 0x7B, 0x32, 0x00, 0x00}, // 0x93
{0x32, 0x7A, 0x48, 0x48, 0x7A, 0x32, 0x00, 0x00}, // 0x94
{0x30, 0x79, 0x4B, 0x4A, 0x78, 0x30, 0x00, 0x00}, // 0x95
{0x3A, 0x7B, 0x41, 0x41, 0x7B, 0x7A, 0x40, 0x00}, // 0x96
{0x38, 0x79, 0x43, 0x42, 0x78, 0x78, 0x40, 0x00}, // 0x97
{0xBA, 0xBA, 0xA0, 0xA0, 0xFA, 0x7A, 0x00, 0x00}, // 0x98
{0x39, 0x7D, 0x44, 0x44, 0x44, 0x7D, 0x39, 0x00}, // 0x99
{0x3D, 0x7D, 0x40, 0x40, 0x7D, 0x3D, 0x00, 0x00}, // 0x9A
{0x38, 0x7C, 0x64, 0x54, 0x4C, 0x7C, 0x38, 0x00}, // 0x9B
{0x68, 0x7E, 0x7F, 0x49, 0x43, 0x66, 0x20, 0x00}, // 0x9C
{0x5C, 0x3E, 0x73, 0x49, 0x67, 0x3E, 0x1D, 0x00}, // 0x9D
{0x44, 0x6C, 0x38, 0x38, 0x6C, 0x44, 0x00, 0x00}, // 0x9E
{0x40, 0xC8, 0x88, 0xFE, 0x7F, 0x09, 0x0B, 0x02}, // 0x9F
{0x20, 0x74, 0x56, 0x57, 0x7D, 0x78, 0x40, 0x00}, // 0xA0
{0x00, 0x44, 0x7E, 0x7F, 0x41, 0x00, 0x00, 0x00}, // 0xA1
{0x30, 0x78, 0x48, 0x4A, 0x7B, 0x31, 0x00, 0x00}, // 0xA2
{0x38, 0x78, 0x40, 0x42, 0x7B, 0x79, 0x40, 0x00}, // 0xA3
{0x7A, 0x7B, 0x09, 0x0B, 0x7A, 0x73, 0x01, 0x00}, // 0xA4
{0x7A, 0x7B, 0x19, 0x33, 0x7A, 0x7B, 0x01, 0x00}, // 0xA5
{0x00, 0x26, 0x2F, 0x29, 0x2F, 0x2F, 0x28, 0x00}, // 0xA6
{0x00, 0x26, 0x2F, 0x29, 0x29, 0x2F, 0x26, 0x00}, // 0xA7
{0x30, 0x78, 0x4D, 0x45, 0x60, 0x20, 0x00, 0x00}, // 0xA8
{0x1C, 0x22, 0x7D, 0x4B, 0x5B, 0x65, 0x22, 0x1C}, // 0xA9
{0x08, 0x08, 0x08, 0x08, 0x38, 0x38, 0x00, 0x00}, // 0xAA
{0x61, 0x3F, 0x1F, 0xCC, 0xEE, 0xAB, 0xB9, 0x90}, // 0xAB
{0x61, 0x3F, 0x1F, 0x4C, 0x66, 0x73, 0xD9, 0xF8}, // 0xAC
{0x00, 0x00, 0x60, 0xFA, 0xFA, 0x60, 0x00, 0x00}, // 0xAD
{0x08, 0x1C, 0x36, 0x22, 0x08, 0x1C, 0x36, 0x22}, // 0xAE
{0x22, 0x36, 0x1C, 0x08, 0x22, 0x36, 0x1C, 0x08}, // 0xAF
{0xAA, 0x00, 0x55, 0x00, 0xAA, 0x00, 0x55, 0x00}, // 0xB0
{0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55}, // 0xB1
{0x55, 0xFF, 0xAA, 0xFF, 0x55, 0xFF, 0xAA, 0xFF}, // 0xB2
{0x00, 0x00, 0x00, 0xFF, 0xFF, 0x00, 0x00, 0x00}, // 0xB3
{0x10, 0x10, 0x10, 0xFF, 0xFF, 0x00, 0x00, 0x00}, // 0xB4
{0x70, 0x78, 0x2C, 0x2E, 0x7B, 0x71, 0x00, 0x00}, // 0xB5
{0x72, 0x79, 0x2D, 0x2D, 0x79, 0x72, 0x00, 0x00}, // 0xB6
{0x71, 0x7B, 0x2E, 0x2C, 0x78, 0x70, 0x00, 0x00}, // 0xB7
{0x1C, 0x22, 0x5D, 0x55, 0x55, 0x41, 0x22, 0x1C}, // 0xB8
{0x14, 0x14, 0xF7, 0xF7, 0x00, 0xFF, 0xFF, 0x00}, // 0xB9
{0x00, 0x00, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0x00}, // 0xBA
{0x14, 0x14, 0xF4, 0xF4, 0x04, 0xFC, 0xFC, 0x00}, // 0xBB
{0x14, 0x14, 0x17, 0x17, 0x10, 0x1F, 0x1F, 0x00}, // 0xBC
{0x18, 0x3C, 0x24, 0xE7, 0xE7, 0x24, 0x24, 0x00}, // 0xBD
{0x2B, 0x2F, 0xFC, 0xFC, 0x2F, 0x2B, 0x00, 0x00}, // 0xBE
{0x10, 0x10, 0x10, 0xF0, 0xF0, 0x00, 0x00, 0x00}, // 0xBF
{0x00, 0x00, 0x00, 0x1F, 0x1F, 0x10, 0x10, 0x10}, // 0xC0
{0x10, 0x10, 0x10, 0x1F, 0x1F, 0x10, 0x10, 0x10}, // 0xC1
{0x10, 0x10, 0x10, 0xF0, 0xF0, 0x10, 0x10, 0x10}, // 0xC2
{0x00, 0x00, 0x00, 0xFF, 0xFF, 0x10, 0x10, 0x10}, // 0xC3
{0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10}, // 0xC4
{0x10, 0x10, 0x10, 0xFF, 0xFF, 0x10, 0x10, 0x10}, // 0xC5
{0x22, 0x77, 0x55, 0x57, 0x7E, 0x7B, 0x41, 0x00}, // 0xC6
{0x72, 0x7B, 0x2D, 0x2F, 0x7A, 0x73, 0x01, 0x00}, // 0xC7
{0x00, 0x00, 0x1F, 0x1F, 0x10, 0x17, 0x17, 0x14}, // 0xC8
{0x00, 0x00, 0xFC, 0xFC, 0x04, 0xF4, 0xF4, 0x14}, // 0xC9
{0x14, 0x14, 0x17, 0x17, 0x10, 0x17, 0x17, 0x14}, // 0xCA
{0x14, 0x14, 0xF4, 0xF4, 0x04, 0xF4, 0xF4, 0x14}, // 0xCB
{0x00, 0x00, 0xFF, 0xFF, 0x00, 0xF7, 0xF7, 0x14}, // 0xCC
{0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14}, // 0xCD
{0x14, 0x14, 0xF7, 0xF7, 0x00, 0xF7, 0xF7, 0x14}, // 0xCE
{0x66, 0x3C, 0x3C, 0x24, 0x3C, 0x3C, 0x66, 0x00}, // 0xCF
{0x05, 0x27, 0x72, 0x57, 0x7D, 0x38, 0x00, 0x00}, // 0xD0
{0x49, 0x7F, 0x7F, 0x49, 0x63, 0x7F, 0x1C, 0x00}, // 0xD1
{0x46, 0x7D, 0x7D, 0x55, 0x55, 0x46, 0x00, 0x00}, // 0xD2
{0x45, 0x7D, 0x7C, 0x54, 0x55, 0x45, 0x00, 0x00}, // 0xD3
{0x44, 0x7D, 0x7F, 0x56, 0x54, 0x44, 0x00, 0x00}, // 0xD4
{0x0A, 0x0E, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0xD5
{0x00, 0x44, 0x7E, 0x7F, 0x45, 0x00, 0x00, 0x00}, // 0xD6
{0x02, 0x45, 0x7D, 0x7D, 0x45, 0x02, 0x00, 0x00}, // 0xD7
{0x01, 0x45, 0x7C, 0x7C, 0x45, 0x01, 0x00, 0x00}, // 0xD8
{0x10, 0x10, 0x10, 0x1F, 0x1F, 0x00, 0x00, 0x00}, // 0xD9
{0x00, 0x00, 0x00, 0xF0, 0xF0, 0x10, 0x10, 0x10}, // 0xDA
{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}, // 0xDB
{0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0}, // 0xDC
{0x00, 0x00, 0x00, 0x77, 0x77, 0x00, 0x00, 0x00}, // 0xDD
{0x00, 0x45, 0x7F, 0x7E, 0x44, 0x00, 0x00, 0x00}, // 0xDE
{0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F}, // 0xDF
{0x38, 0x7C, 0x46, 0x47, 0x45, 0x7C, 0x38, 0x00}, // 0xE0
{0xFC, 0xFE, 0x2A, 0x2A, 0x3E, 0x14, 0x00, 0x00}, // 0xE1
{0x3A, 0x7D, 0x45, 0x45, 0x45, 0x7D, 0x3A, 0x00}, // 0xE2
{0x38, 0x7C, 0x45, 0x47, 0x46, 0x7C, 0x38, 0x00}, // 0xE3
{0x32, 0x7B, 0x49, 0x4B, 0x7A, 0x33, 0x01, 0x00}, // 0xE4
{0x3A, 0x7F, 0x45, 0x47, 0x46, 0x7F, 0x39, 0x00}, // 0xE5
{0x80, 0xFE, 0x7E, 0x20, 0x20, 0x3E, 0x1E, 0x00}, // 0xE6
{0x42, 0x7E, 0x7E, 0x54, 0x1C, 0x08, 0x00, 0x00}, // 0xE7
{0x41, 0x7F, 0x7F, 0x55, 0x14, 0x1C, 0x08, 0x00}, // 0xE8
{0x3C, 0x7C, 0x42, 0x43, 0x7D, 0x3C, 0x00, 0x00}, // 0xE9
{0x3A, 0x79, 0x41, 0x41, 0x79, 0x3A, 0x00, 0x00}, // 0xEA
{0x3C, 0x7D, 0x43, 0x42, 0x7C, 0x3C, 0x00, 0x00}, // 0xEB
{0xB8, 0xB8, 0xA2, 0xA3, 0xF9, 0x78, 0x00, 0x00}, // 0xEC
{0x0C, 0x5C, 0x72, 0x73, 0x5D, 0x0C, 0x00, 0x00}, // 0xED
{0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00}, // 0xEE
{0x00, 0x00, 0x02, 0x03, 0x01, 0x00, 0x00, 0x00}, // 0xEF
{0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x00, 0x00}, // 0xF0
{0x44, 0x44, 0x5F, 0x5F, 0x44, 0x44, 0x00, 0x00}, // 0xF1
{0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x00, 0x00}, // 0xF2
{0x71, 0x35, 0x1F, 0x4C, 0x66, 0x73, 0xD9, 0xF8}, // 0xF3
{0x06, 0x0F, 0x09, 0x7F, 0x7F, 0x01, 0x7F, 0x7F}, // 0xF4
{0xDA, 0xBF, 0xA5, 0xA5, 0xFD, 0x59, 0x03, 0x02}, // 0xF5
{0x08, 0x08, 0x6B, 0x6B, 0x08, 0x08, 0x00, 0x00}, // 0xF6
{0x00, 0x80, 0xC0, 0x40, 0x00, 0x00, 0x00, 0x00}, // 0xF7
{0x00, 0x06, 0x0F, 0x09, 0x0F, 0x06, 0x00, 0x00}, // 0xF8
{0x02, 0x02, 0x00, 0x00, 0x02, 0x02, 0x00, 0x00}, // 0xF9
{0x00, 0x00, 0x00, 0x10, 0x10, 0x00, 0x00, 0x00}, // 0xFA
{0x00, 0x12, 0x13, 0x1F, 0x1F, 0x10, 0x10, 0x00}, // 0xFB
{0x00, 0x11, 0x15, 0x15, 0x1F, 0x1F, 0x0A, 0x00}, // 0xFC
{0x00, 0x19, 0x1D, 0x15, 0x17, 0x12, 0x00, 0x00}, // 0xFD
{0x00, 0x00, 0x3C, 0x3C, 0x3C, 0x3C, 0x00, 0x00}, // 0xFE
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} // 0xFF
};
#endif

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// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ssd1306_H_
#define _ssd1306_H_
#define SSD1306_ADDRESS (0x3C)
#define SSD1306_COLUMNS (128)
#define SSD1306_PAGES (8)
// Write mode for I2C https://robotcantalk.blogspot.com/2015/03/interfacing-arduino-with-ssd1306-driven.html
#define SSD1306_CONTROL_CMD_BYTE (0x80)
#define SSD1306_CONTROL_CMD_STREAM (0x00)
#define SSD1306_CONTROL_DATA_BYTE (0xC0)
#define SSD1306_CONTROL_DATA_STREAM (0x40)
// 1. Fundamental Command Table
#define SSD1306_CMD_CONTRAST (0x81)
#define SSD1306_CMD_RAM (0xA4)
#define SSD1306_CMD_ALL_ON (0xA5)
#define SSD1306_CMD_NORMAL (0xA6)
#define SSD1306_CMD_INVERSE (0xA7)
#define SSD1306_CMD_OFF (0xAE)
#define SSD1306_CMD_ON (0xAF)
// 2. Scrolling Command Table
#define SSD1306_CMD_SCROLL_HORI_RIGHT (0x26)
#define SSD1306_CMD_SCROLL_HORI_LEFT (0x27)
#define SSD1306_CMD_SCROLL_VERT_RIGHT (0x29)
#define SSD1306_CMD_SCROLL_VERT_LEFT (0x2A)
#define SSD1306_CMD_SCROLL_STOP (0x2E)
#define SSD1306_CMD_SCROLL_START (0x2F)
#define SSD1306_CMD_SCROLL_VERT_AREA (0xA3)
// 3. Addressing Setting Command Table
#define SSD1306_CMD_COLUMN_LOW (0x00)
#define SSD1306_CMD_COLUMN_HIGH (0x10)
#define SSD1306_CMD_MEMORY_MODE (0x20)
#define SSD1306_CMD_COLUMN_ADDRESS (0x21)
#define SSD1306_CMD_PAGE_ADDRESS (0x22)
#define SSD1306_CMD_PAGE (0xB0)
// 4. Hardware Configuration (Panel resolution & layout related) Command Table
#define SSD1306_CMD_START_LINE (0x40)
#define SSD1306_CMD_SEGMENT_LOW (0xA0)
#define SSD1306_CMD_SEGMENT_HIGH (0xA1)
#define SSD1306_CMD_MULTIPLEX_RATIO (0xA8)
#define SSD1306_CMD_SCAN_DIRECTION_NORMAL (0xC0)
#define SSD1306_CMD_SCAN_DIRECTION_REMAPPED (0xC8)
#define SSD1306_CMD_OFFSET (0xD3)
#define SSD1306_CMD_COM_PINS (0xDA)
// 5. Timing & Driving Scheme Setting Command Table
#define SSD1306_CMD_CLOCK (0xD5)
#define SSD1306_CMD_PRE_CHARGE_PERIOD (0xD9)
#define SSD1306_CMD_VCOMH (0xDB)
#define SSD1306_CMD_NOP (0xE3)
// 1. Charge Pump Command Table
#define SSD1306_CMD_CHARGE_PUMP (0x8D)
/**
* @brief initalize SSD1306 with I2C at given address
*
* @param[in] i2address I2C address of SSD1306
*/
void ssd1306_start(uint8_t i2address);
/**
* @brief clear the display
*
* @param[in] i2address I2C address of SSD1306
* @param[in] line the line to clear
*/
void ssd1306_clear_line(uint8_t i2address, uint8_t line, bool invert);
/**
* @brief clear the display
*
* @param[in] i2address I2C address of SSD1306
*/
void ssd1306_clear(uint8_t i2address);
/**
* @brief write text to display
*
* @param[in] i2address I2C address of SSD1306
* @param[in] text text to display
* @param[in] line the line to write to
*/
void ssd1306_text_line(uint8_t i2address, char *text, uint8_t line, bool invert);
#endif

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// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <string.h>
#include "driver/i2c.h"
#include "esp_log.h"
#include "i2c-main.h"
#include "ssd1306-ascii.h"
#include "ssd1306.h"
void ssd1306_start(uint8_t i2address)
{
if (!i2c_is_initialized())
{
i2c_main_init();
}
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
// Begin the I2C comm with SSD1306's address (SLA+Write)
i2c_master_write_byte(cmd, (i2address << 1) | I2C_MASTER_WRITE, true);
// Tell the SSD1306 that a command stream is incoming
i2c_master_write_byte(cmd, SSD1306_CONTROL_CMD_STREAM, true);
// Turn the Display OFF
i2c_master_write_byte(cmd, SSD1306_CMD_OFF, true);
// Set mux ration tp select max number of rows - 64
i2c_master_write_byte(cmd, SSD1306_CMD_MULTIPLEX_RATIO, true);
i2c_master_write_byte(cmd, 0x3F, true);
// Set the display offset to 0
i2c_master_write_byte(cmd, SSD1306_CMD_OFFSET, true);
i2c_master_write_byte(cmd, 0x00, true);
// Display start line to 0
i2c_master_write_byte(cmd, SSD1306_CMD_START_LINE, true);
// Mirror the x-axis. In case you set it up such that the pins are north.
i2c_master_write_byte(cmd, SSD1306_CMD_SEGMENT_HIGH, true);
// Mirror the y-axis. In case you set it up such that the pins are north.
i2c_master_write_byte(cmd, SSD1306_CMD_SCAN_DIRECTION_REMAPPED, true);
// Default - alternate COM pin map
i2c_master_write_byte(cmd, SSD1306_CMD_COM_PINS, true);
i2c_master_write_byte(cmd, 0x12, true);
// set contrast
i2c_master_write_byte(cmd, SSD1306_CMD_CONTRAST, true);
i2c_master_write_byte(cmd, 0xFF, true);
// Set display to enable rendering from GDDRAM (Graphic Display Data RAM)
i2c_master_write_byte(cmd, SSD1306_CMD_RAM, true);
// Normal mode!
i2c_master_write_byte(cmd, SSD1306_CMD_NORMAL, true);
// Default oscillator clock
i2c_master_write_byte(cmd, SSD1306_CMD_CLOCK, true);
i2c_master_write_byte(cmd, 0x80, true);
// Enable the charge pump
i2c_master_write_byte(cmd, SSD1306_CMD_CHARGE_PUMP, true);
i2c_master_write_byte(cmd, 0x14, true);
// Set precharge cycles to high cap type
i2c_master_write_byte(cmd, SSD1306_CMD_PRE_CHARGE_PERIOD, true);
i2c_master_write_byte(cmd, 0x22, true);
// Set the V_COMH deselect volatage to max
i2c_master_write_byte(cmd, SSD1306_CMD_VCOMH, true);
i2c_master_write_byte(cmd, 0x30, true);
// Horizonatal addressing mode to page addressing
i2c_master_write_byte(cmd, SSD1306_CMD_MEMORY_MODE, true);
i2c_master_write_byte(cmd, 0x02, true);
//i2c_master_write_byte(cmd, 0x00, true);
// i2c_master_write_byte(cmd, 0x10, true);
// i2c_master_write_byte(cmd, SSD1306_CMD_SCROLL_STOP, true);
// Turn the Display ON
i2c_master_write_byte(cmd, SSD1306_CMD_ON, true);
i2c_master_stop(cmd);
ESP_ERROR_CHECK(i2c_master_cmd_begin(I2C_NUM_0, cmd, 10 / portTICK_PERIOD_MS));
i2c_cmd_link_delete(cmd);
}
void ssd1306_init_data(uint8_t i2address)
{
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
// Begin the I2C comm with SSD1306's address (SLA+Write)
i2c_master_write_byte(cmd, (i2address << 1) | I2C_MASTER_WRITE, true);
// Tell the SSD1306 that a command stream is incoming
i2c_master_write_byte(cmd, SSD1306_CONTROL_CMD_STREAM, true);
// set column start + end
i2c_master_write_byte(cmd, SSD1306_CMD_COLUMN_LOW, true);
i2c_master_write_byte(cmd, SSD1306_CMD_COLUMN_HIGH, true);
// set page
i2c_master_write_byte(cmd, SSD1306_CMD_PAGE, true);
i2c_master_stop(cmd);
ESP_ERROR_CHECK(i2c_master_cmd_begin(I2C_NUM_0, cmd, 10 / portTICK_PERIOD_MS));
i2c_cmd_link_delete(cmd);
}
void ssd1306_clear_line(uint8_t i2address, uint8_t line, bool invert)
{
i2c_cmd_handle_t cmd;
uint8_t *zeros = calloc(SSD1306_COLUMNS, sizeof(uint8_t));
// set line
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (i2address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, SSD1306_CONTROL_CMD_STREAM, true);
i2c_master_write_byte(cmd, SSD1306_CMD_COLUMN_LOW, true);
i2c_master_write_byte(cmd, SSD1306_CMD_COLUMN_HIGH, true);
i2c_master_write_byte(cmd, SSD1306_CMD_PAGE | line, true);
i2c_master_stop(cmd);
i2c_master_cmd_begin(I2C_NUM_0, cmd, 10 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
// fill line with zeros
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (i2address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, SSD1306_CONTROL_DATA_STREAM, true);
i2c_master_write(cmd, zeros, SSD1306_COLUMNS, true);
i2c_master_stop(cmd);
i2c_master_cmd_begin(I2C_NUM_0, cmd, 10 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
free(zeros);
}
void ssd1306_clear(uint8_t i2address)
{
for (uint8_t i = 0; i < SSD1306_PAGES; i++)
{
ssd1306_clear_line(i2address, i, false);
}
}
void ssd1306_text_line(uint8_t i2address, char *text, uint8_t line, bool invert)
{
ssd1306_init_data(i2address);
i2c_cmd_handle_t cmd;
// set line
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (i2address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, SSD1306_CONTROL_CMD_STREAM, true);
i2c_master_write_byte(cmd, SSD1306_CMD_COLUMN_LOW, true);
i2c_master_write_byte(cmd, SSD1306_CMD_COLUMN_HIGH, true);
i2c_master_write_byte(cmd, SSD1306_CMD_PAGE | line, true);
i2c_master_stop(cmd);
i2c_master_cmd_begin(I2C_NUM_0, cmd, 10 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
uint8_t *linedata = calloc(SSD1306_COLUMNS, sizeof(uint8_t));
uint8_t font_width = sizeof(ascii_font_5x8[0]);
for (uint8_t i = 0; i < strlen(text); i++)
{
memcpy(&linedata[i * font_width], ascii_font_5x8[(uint8_t)text[i]], font_width);
}
if (invert)
{
for (uint8_t i = 0; i < SSD1306_COLUMNS; i++)
{
linedata[i] = ~linedata[i];
}
}
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (i2address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, SSD1306_CONTROL_DATA_STREAM, true);
i2c_master_write(cmd, linedata, SSD1306_COLUMNS, true);
i2c_master_stop(cmd);
i2c_master_cmd_begin(I2C_NUM_0, cmd, 10 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
free(linedata);
}

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@ -1,4 +1,5 @@
idf_component_register(
SRCS "ena-detection.c" "ena-storage.c" "ena-crypto.c" "main.c" "ena.c" "ena-bluetooth-scan.c" "ena-bluetooth-advertise.c" "ena-detection.c" "ena-interface.c" "ena-interface-menu.c" "ena-interface-datetime.c"
SRCS
"main.c"
INCLUDE_DIRS ""
)

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@ -1,5 +0,0 @@
#
# "main" pseudo-component makefile.
#
# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)

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@ -1,91 +0,0 @@
// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_DATASTRUCTURES_H_
#define _ena_DATASTRUCTURES_H_
#include <stdio.h>
#include "ena-crypto.h"
/**
* @brief different risk levels
*
* not used for now
*/
typedef enum
{
RISK_LEVEL_INVALID = 0,
RISK_LEVEL_LOWEST,
RISK_LEVEL_LOW,
RISK_LEVEL_LOW_MEDIUM,
RISK_LEVEL_MEDIUM,
RISK_LEVEL_MEDIUM_HIGH,
RISK_LEVEL_HIGH,
RISK_LEVEL_VERY_HIGH,
RISK_LEVEL_HIGHEST,
} ena_risklevel_t;
/**
* @brief configuration for risk score calculation
*
* not used for now
*/
typedef struct
{
int minimum_risk_score;
int attenuation_score[8];
int attenuation_weight;
int days_sinse_last_exposure_score[8];
int days_sinse_last_exposure_weight;
int duration_scores[8];
float duration_weight;
int transmission_risk_scores[8];
float transmission_risk_weight;
uint8_t duration_at_attenuation_thresholds[2];
} __packed ena_config_t;
/**
* @brief structure for TEK
*/
typedef struct
{
uint8_t key_data[ENA_KEY_LENGTH]; // key data for encryption
uint32_t enin; // ENIN marking start of validity
uint8_t rolling_period; // period after validity start to mark key as expired
} __packed ena_tek_t;
/**
* @brief sturcture for a temporary detection
*/
typedef struct
{
uint8_t rpi[ENA_KEY_LENGTH]; // received RPI of detection
uint8_t aem[ENA_AEM_METADATA_LENGTH]; // received AEM of detection
uint32_t timestamp_first; // timestamp of first recognition
uint32_t timestamp_last; // timestamp of last recognition
int rssi; // last measured RSSI
} __packed ena_temp_detection_t;
/**
* @brief sturcture for a detection
*/
typedef struct
{
uint8_t rpi[ENA_KEY_LENGTH]; // received RPI of detection
uint8_t aem[ENA_AEM_METADATA_LENGTH]; // received AEM of detection
uint32_t timestamp; // timestamp of last recognition
int rssi; // last measured RSSI
} __packed ena_detection_t;
#endif

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@ -1,116 +0,0 @@
// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <string.h>
#include "esp_log.h"
#include "ena-datastructures.h"
#include "ena-crypto.h"
#include "ena-storage.h"
#include "ena-detection.h"
static uint32_t temp_detections_count = 0;
static ena_temp_detection_t temp_detections[ENA_STORAGE_TEMP_DETECTIONS_MAX];
ena_detection_t ena_detections_convert(ena_temp_detection_t temp_detection)
{
ena_detection_t detection;
memcpy(detection.rpi, temp_detection.rpi, ENA_KEY_LENGTH);
memcpy(detection.aem, temp_detection.aem, ENA_AEM_METADATA_LENGTH);
detection.timestamp = temp_detection.timestamp_last;
detection.rssi = temp_detection.rssi;
return detection;
}
int ena_get_temp_detection_index(uint8_t *rpi, uint8_t *aem)
{
for (int i = 0; i < temp_detections_count; i++)
{
if (memcmp(temp_detections[i].rpi, rpi, sizeof(ENA_KEY_LENGTH)) == 0 &&
memcmp(temp_detections[i].aem, aem, sizeof(ENA_AEM_METADATA_LENGTH)) == 0)
{
return i;
}
}
return -1;
}
void ena_detections_temp_refresh(uint32_t unix_timestamp)
{
for (int i = temp_detections_count - 1; i >= 0; i--)
{
// check for treshold and add permanent detection
if (temp_detections[i].timestamp_last - temp_detections[i].timestamp_first >= ENA_DETECTION_TRESHOLD)
{
ESP_LOGD(ENA_DETECTION_LOG, "create detection after treshold");
ESP_LOG_BUFFER_HEXDUMP(ENA_DETECTION_LOG, temp_detections[i].rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ena_detection_t detection = ena_detections_convert(temp_detections[i]);
ena_storage_add_detection(&detection);
ena_storage_remove_temp_detection(i);
}
else
// delete temp detections older than two times time window (two times to be safe, one times time window enough?!)
if (unix_timestamp - temp_detections[i].timestamp_last > (ENA_TIME_WINDOW * 2))
{
ESP_LOGD(ENA_DETECTION_LOG, "remove old temporary detection %u", i);
ena_storage_remove_temp_detection(i);
}
}
// update detections
temp_detections_count = ena_storage_temp_detections_count();
for (int i = 0; i < temp_detections_count; i++)
{
ena_storage_get_temp_detection(i, &temp_detections[i]);
}
// DEBUG dump
ena_storage_dump_tek();
ena_storage_dump_temp_detections();
ena_storage_dump_detections();
}
void ena_detection(uint32_t unix_timestamp, uint8_t *rpi, uint8_t *aem, int rssi)
{
uint32_t detection_index = ena_get_temp_detection_index(rpi, aem);
if (detection_index == -1)
{
temp_detections[temp_detections_count].timestamp_first = unix_timestamp;
memcpy(temp_detections[temp_detections_count].rpi, rpi, ENA_KEY_LENGTH);
memcpy(temp_detections[temp_detections_count].aem, aem, ENA_AEM_METADATA_LENGTH);
temp_detections[temp_detections_count].rssi = rssi;
temp_detections[temp_detections_count].timestamp_last = unix_timestamp;
detection_index = ena_storage_add_temp_detection(&temp_detections[temp_detections_count]);
ESP_LOGD(ENA_DETECTION_LOG, "New temporary detection at %d with timestamp %u", temp_detections_count, unix_timestamp);
ESP_LOG_BUFFER_HEX_LEVEL(ENA_DETECTION_LOG, rpi, ENA_KEY_LENGTH, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEX_LEVEL(ENA_DETECTION_LOG, aem, ENA_AEM_METADATA_LENGTH, ESP_LOG_DEBUG);
ESP_LOGD(ENA_DETECTION_LOG, "RSSI %d", rssi);
if (detection_index != temp_detections_count)
{
ESP_LOGW(ENA_DETECTION_LOG, "last temporary detection index does not match array index!");
}
temp_detections_count++;
}
else
{
temp_detections[detection_index].rssi = rssi;
temp_detections[detection_index].timestamp_last = unix_timestamp;
ESP_LOGD(ENA_DETECTION_LOG, "New Timestamp for temporary detection %d: %u", detection_index, unix_timestamp);
ena_storage_set_temp_detection(temp_detections_count, &temp_detections[temp_detections_count]);
}
}

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@ -1,189 +0,0 @@
// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ena_STORAGE_H_
#define _ena_STORAGE_H_
#include "ena-crypto.h"
#include "ena-datastructures.h"
#define ENA_STORAGE_LOG "ESP-ENA-storage" // TAG for Logging
#define PARTITION_NAME "ena" // name of partition to use for storing
#define ENA_STORAGE_TEK_STORE_PERIOD (14) // Period of storing TEKs // length of a stored detection -> RPI keysize + AEM size + 4 Bytes for ENIN + 4 Bytes for RSSI
#define ENA_STORAGE_TEMP_DETECTIONS_MAX (1000) // Maximum number of temporary stored detections
/**
* @brief read bytes at given address
*
* @param[in] address the address to read bytes from
* @param[out] data pointer to write the read data
* @param[in] size how many bytes to read
*/
void ena_storage_read(size_t address, void *data, size_t size);
/**
* @brief store bytes at given address
*
* @param[in] address the address to write bytes to
* @param[in] data pointer to the data to write
* @param[in] size how many bytes to write
*/
void ena_storage_write(size_t address, void *data, size_t size);
/**
* @brief deletes bytes at given address and shift other data back
*
* @param[in] address the address to delete from
* @param[in] end_address the address to mark end of shift
* @param[in] size how many bytes to delete
*/
void ena_storage_shift_delete(size_t address, size_t end_address, size_t size);
/**
* @brief get last stored TEK
*
* @param[out] tek pointer to write last TEK to
*
* @return
* total number of TEKs stored
*/
uint32_t ena_storage_read_last_tek(ena_tek_t *tek);
/**
* @brief store given TEK
*
* This will store the given TEK as new TEK.
*
* @param[in] tek the tek to store
*/
void ena_storage_write_tek(ena_tek_t *tek);
/**
* @brief get number of stored temporary detections
*
* @return
* total number of temporary detections stored
*/
uint32_t ena_storage_temp_detections_count(void);
/**
* @brief get temporary detection at given index
*
* @param[in] index the index of the temporary detection to read
* @param[out] detection pointer to temporary to write to
*/
void ena_storage_get_temp_detection(uint32_t index, ena_temp_detection_t *detection);
/**
* @brief store temporary detection
*
* @param[in] detection new temporary detection to store
*
* @return
* index of new stored detection
*/
uint32_t ena_storage_add_temp_detection(ena_temp_detection_t *detection);
/**
* @brief store temporary detection at given index
*
* @param[in] index the index of the temporary detection to overwrite
* @param[in] detection temporary detection to store
*/
void ena_storage_set_temp_detection(uint32_t index, ena_temp_detection_t *detection);
/**
* @brief remove temporary detection at given index
*
* @param[in] index the index of the temporary detection to remove
*/
void ena_storage_remove_temp_detection(uint32_t index);
/**
* @brief get number of stored detections
*
* @return
* total number of detections stored
*/
uint32_t ena_storage_detections_count(void);
/**
* @brief get detection at given index
*
* @param[in] index the index of the detection to read
* @param[out] detection pointer to to write to
*/
void ena_storage_get_detection(uint32_t index, ena_detection_t *detection);
/**
* @brief store detection
*
* @param[in] detection new detection to store
*/
void ena_storage_add_detection(ena_detection_t *detection);
/**
* @brief erase the storage
*
* This function completely deletes all stored data and resets the counters
* of TEKs, temporary detection and detection to zero.
*/
void ena_storage_erase(void);
/**
* @brief erase stored TEKs
*
* This function deletes all stored TEKs and resets counter to zero.
*/
void ena_storage_erase_tek(void);
/**
* @brief erase stored temporary detections
*
* This function deletes all stored temporary detections and resets counter to zero.
*/
void ena_storage_erase_temporary_detection(void);
/**
* @brief erase stored detections
*
* This function deletes all stored detections and resets counter to zero.
*/
void ena_storage_erase_detection(void);
/**
* @brief dump all stored TEKs to serial output
*
* This function prints all stored TEKs to serial output in
* the following CSV format: #,enin,tek
*/
void ena_storage_dump_tek(void);
/**
* @brief dump all stored temporary detections to serial output
*
* This function prints all stored temporary detections to serial output in
* the following CSV format: #,timestamp_first,timestamp_last,rpi,aem,rssi
*/
void ena_storage_dump_temp_detections(void);
/**
* @brief dump all stored detections to serial output
*
* This function prints all stored detections to serial output in
* the following CSV format: #,timestamp,rpi,aem,rssi
*/
void ena_storage_dump_detections(void);
#endif

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@ -21,21 +21,33 @@
#include "esp_log.h"
#include "ena.h"
#include "ena-detection.h"
#include "ena-storage.h"
#include "ena-interface.h"
#include "ena-interface-menu.h"
#include "ssd1306.h"
#include "sdkconfig.h"
void app_main(void)
{
// DEBUG set time
struct timeval tv = {1594459800, 0}; // current hardcoded timestamp (2020-07-11 09:30:00) ¯\_(ツ)_/¯
struct timeval tv = {1594843200, 0}; // current hardcoded timestamp ¯\_(ツ)_/¯
settimeofday(&tv, NULL);
esp_log_level_set(ENA_STORAGE_LOG, ESP_LOG_INFO);
// ena_storage_erase(); // only needed on first start! TODO automatically check (how?)
ssd1306_start(SSD1306_ADDRESS);
ssd1306_clear(SSD1306_ADDRESS);
// TODO
ssd1306_text_line(SSD1306_ADDRESS, " TODO TODO", 0, false);
ssd1306_text_line(SSD1306_ADDRESS, " TODO", 1, true);
ssd1306_text_line(SSD1306_ADDRESS, " TODO TODO", 2, false);
ssd1306_text_line(SSD1306_ADDRESS, " TODO", 3, true);
ssd1306_text_line(SSD1306_ADDRESS, " TODO TODO", 4, false);
ssd1306_text_line(SSD1306_ADDRESS, " TODO", 5, true);
ssd1306_text_line(SSD1306_ADDRESS, " TODO TODO", 6, false);
ssd1306_text_line(SSD1306_ADDRESS, " TODO", 7, true);
ena_interface_start();
ena_interface_menu_start();