332 lines
7.8 KiB
C++
332 lines
7.8 KiB
C++
/*
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* Copyright (c) 2020 Andrey Perminov <andrey.ppp@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <SPI.h>
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#include <BMLite.h>
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#define BMLITE_PIN_RESET 2
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#define BMLITE_PIN_STATUS 4
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#define LED1 14
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#define LED2 15
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#define LED3 16
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#define LED4 17
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#define BMLITE_BUTTON 3
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#define BMLITE_CS_PIN 8
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//#define BMLITE_MISO_PIN ARDUINO_12_PIN
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//#define BMLITE_MOSI_PIN ARDUINO_11_PIN
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//#define BMLITE_CLK_PIN ARDUINO_13_PIN
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int leds[4] = {LED1, LED2, LED3, LED4};
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#define DATA_BUFFER_SIZE (512)
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static uint8_t hcp_txrx_buffer[MTU];
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static uint8_t hcp_data_buffer[DATA_BUFFER_SIZE];
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static HCP_comm_t hcp_chain;
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void setup() {
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char *version;
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hcp_chain.write = platform_bmlite_spi_send;
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hcp_chain.read = platform_bmlite_spi_receive;
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hcp_chain.phy_rx_timeout = 2000;
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hcp_chain.pkt_buffer = hcp_data_buffer;
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hcp_chain.pkt_size_max = sizeof(hcp_data_buffer);
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hcp_chain.pkt_size = 0;
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hcp_chain.txrx_buffer = hcp_txrx_buffer;
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// put your setup code here, to run once:
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pinMode(BMLITE_PIN_RESET, OUTPUT);
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pinMode(BMLITE_PIN_STATUS, INPUT);
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for(int i=0; i<4; i++) {
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pinMode(leds[i], OUTPUT);
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}
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set_leds(0);
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pinMode(BMLITE_BUTTON, INPUT_PULLUP);
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attachInterrupt(digitalPinToInterrupt(BMLITE_BUTTON), check_buttons, CHANGE);
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SPI.begin();
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pinMode(BMLITE_CS_PIN, OUTPUT);
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platform_init(NULL);
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// These lines for debug purpose only
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{
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version = (char *)malloc(50);
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memset(version, 0, 50);
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fpc_bep_result_t res = bep_version(&hcp_chain, version, 99);
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free(version);
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}
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}
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uint16_t template_id;
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uint32_t current_id = 0;
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bool match;
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void loop() {
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// put your main code here, to run repeatedly:
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int res;
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uint32_t btn_time = hal_get_button_press_time();
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hal_set_leds(BMLITE_LED_STATUS_READY,0);
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if (btn_time < 200) {
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// nothing hapened
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} else if (btn_time < 5000) {
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// Enroll
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res = bep_enroll_finger(&hcp_chain);
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res = bep_template_save(&hcp_chain, current_id++);
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} else {
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// Erase All templates
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hal_set_leds(BMLITE_LED_STATUS_DELETE_TEMPLATES, true);
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res = bep_template_remove_all(&hcp_chain);
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current_id = 0;
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}
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res = bep_identify_finger(&hcp_chain, 0, &template_id, &match);
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if (res == FPC_BEP_RESULT_TIMEOUT || res == FPC_BEP_RESULT_IO_ERROR) {
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platform_bmlite_reset();
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} else if (res != FPC_BEP_RESULT_OK) {
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return;
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}
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hal_set_leds(BMLITE_LED_STATUS_MATCH, match);
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res = sensor_wait_finger_not_present(&hcp_chain, 0);
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}
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void bmlite_on_error(bmlite_error_t error, int32_t value)
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{
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if(value != FPC_BEP_RESULT_TIMEOUT) {
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hal_set_leds(BMLITE_LED_STATUS_ERROR, false);
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} else {
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// Timeout - not really an error here
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hal_set_leds(BMLITE_LED_STATUS_ERROR, true);
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}
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}
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// void bmlite_on_start_capture();
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// void bmlite_on_finish_capture();
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void bmlite_on_start_enroll()
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{
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hal_set_leds(BMLITE_LED_STATUS_ENROLL, true);
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}
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void bmlite_on_finish_enroll()
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{
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hal_set_leds(BMLITE_LED_STATUS_ENROLL, false);
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}
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void bmlite_on_start_enrollcapture()
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{
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hal_set_leds(BMLITE_LED_STATUS_WAITTOUCH, true);
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}
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void bmlite_on_finish_enrollcapture()
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{
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hal_set_leds(BMLITE_LED_STATUS_READY, false);
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}
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void bmlite_on_identify_start()
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{
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hal_set_leds(BMLITE_LED_STATUS_READY, true);
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}
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// void bmlite_on_identify_finish();
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/*
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* Arduino HAL Implementation
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*/
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fpc_bep_result_t hal_board_init(void *params)
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{
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(void)params;
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return FPC_BEP_RESULT_OK;
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}
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void hal_bmlite_reset(bool state)
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{
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if(!state) {
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digitalWrite(BMLITE_PIN_RESET, HIGH);
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} else {
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digitalWrite(BMLITE_PIN_RESET, LOW);
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}
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}
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bool hal_bmlite_get_status(void)
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{
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return digitalRead(BMLITE_PIN_STATUS);
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}
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/** LED ON time in ms */
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#define LED_SOLID_ON_TIME_MS 700
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/** LED blink time in ms */
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#define LED_BLINK_TIME_MS 200
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static void set_leds(uint8_t color)
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{
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uint32_t i;
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for(i=0; i<4; i++) {
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digitalWrite(leds[i], color & 1);
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color = color >> 1;
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}
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}
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void hal_set_leds(platform_led_status_t status, uint16_t mode)
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{
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switch(status) {
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case BMLITE_LED_STATUS_READY:
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set_leds(0);
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break;
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case BMLITE_LED_STATUS_MATCH:
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if (mode) {
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set_leds(1);
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} else {
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set_leds(2);
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}
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hal_timebase_busy_wait(500);
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break;
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case BMLITE_LED_STATUS_WAITTOUCH:
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if (mode) {
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set_leds(3);
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}
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break;
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case BMLITE_LED_STATUS_ENROLL:
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if (mode) {
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// Start enroll
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set_leds(1);
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hal_timebase_busy_wait(500);
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set_leds(2);
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hal_timebase_busy_wait(500);
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} else {
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// Finish enroll
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set_leds(1);
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hal_timebase_busy_wait(100);
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set_leds(0);
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hal_timebase_busy_wait(100);
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set_leds(2);
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hal_timebase_busy_wait(100);
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}
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break;
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case BMLITE_LED_STATUS_DELETE_TEMPLATES:
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set_leds(4);
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hal_timebase_busy_wait(100);
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set_leds(0);
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hal_timebase_busy_wait(100);
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set_leds(4);
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hal_timebase_busy_wait(100);
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break;
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case BMLITE_LED_STATUS_ERROR:
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if (mode) {
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set_leds(3);
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hal_timebase_busy_wait(70);
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} else {
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set_leds(3);
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hal_timebase_busy_wait(500);
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set_leds(0);
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hal_timebase_busy_wait(500);
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set_leds(3);
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hal_timebase_busy_wait(500);
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}
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break;
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}
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}
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fpc_bep_result_t hal_bmlite_spi_write_read(uint8_t *buff, size_t size)
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{
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digitalWrite(BMLITE_CS_PIN, LOW);
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SPI.transfer(buff,size);
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digitalWrite(BMLITE_CS_PIN, HIGH);
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return FPC_BEP_RESULT_OK;
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}
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volatile uint32_t button_pressed_time = 0;
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static uint32_t btn_press_start;
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static uint32_t btn_pressed = 0;
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void hal_timebase_init(void)
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{
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}
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void hal_timebase_busy_wait(uint32_t delay)
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{
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uint32_t start;
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uint32_t delay_internal = 0;
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/* Ensure minimum delay or skip if delay is zero*/
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if (delay) {
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delay_internal = delay + 1;
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start = millis();
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while ((millis() - start) < delay_internal) {
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}
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}
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}
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hal_tick_t hal_timebase_get_tick(void)
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{
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return millis();
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}
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static void check_buttons()
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{
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if (digitalRead(BMLITE_BUTTON)) {
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if (btn_pressed == 0) {
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btn_press_start = micros();
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btn_pressed = 1;
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}
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} else { // Btn released
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if (btn_pressed) {
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if (micros() > btn_press_start) {
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button_pressed_time = micros() - btn_press_start;
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} else {
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button_pressed_time = micros() + ~btn_press_start + 1;
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}
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btn_pressed = 0;
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}
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}
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}
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uint32_t hal_get_button_press_time()
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{
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uint32_t time = button_pressed_time;
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button_pressed_time = 0;
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return time;
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}
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uint32_t hal_check_button_pressed()
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{
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uint32_t time = button_pressed_time;
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return time;
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}
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