101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/*
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* Copyright (c) 2020 Fingerprint Cards AB
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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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* Modified by Andrey Perminov <andrey.ppp@gmail.com>
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* for BM-Lite applications
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*/
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/**
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* @file platform.c
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* @brief Platform specific functions
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*/
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#ifdef DEBUG_COMM
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#include <stdio.h>
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#define LOG_DEBUG(...) printf(__VA_ARGS__)
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#else
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#define LOG_DEBUG(...)
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#endif
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#include "fpc_bep_types.h"
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#include "platform.h"
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#include "bmlite_hal.h"
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fpc_bep_result_t platform_init(void *params)
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{
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fpc_bep_result_t result;
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result = hal_board_init(params);
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if(result == FPC_BEP_RESULT_OK) {
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hal_timebase_init();
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platform_bmlite_reset();
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}
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return result;
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}
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void platform_bmlite_reset(void)
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{
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hal_bmlite_reset(true);
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hal_timebase_busy_wait(100);
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hal_bmlite_reset(false);
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hal_timebase_busy_wait(100);
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}
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fpc_bep_result_t platform_bmlite_spi_send(uint16_t size, const uint8_t *data, uint32_t timeout)
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{
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uint8_t buff[size];
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#ifdef DEBUG_COMM
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LOG_DEBUG("-> ");
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for (int i=0; i<size; i++)
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LOG_DEBUG("%02X ", data[i]);
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LOG_DEBUG("\n");
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#endif
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return hal_bmlite_spi_write_read((uint8_t *)data, buff, size, false);
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}
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fpc_bep_result_t platform_bmlite_spi_receive(uint16_t size, uint8_t *data, uint32_t timeout)
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{
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volatile uint32_t start_time = hal_timebase_get_tick();
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volatile uint32_t curr_time = start_time;
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// Wait for BM_Lite Ready for timeout or indefinitely if timeout is 0
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while (!hal_bmlite_get_status() &&
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(!timeout || (curr_time = hal_timebase_get_tick()) - start_time < timeout)) {
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if(hal_check_button_pressed()) {
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return FPC_BEP_RESULT_TIMEOUT;
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}
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}
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if(timeout && curr_time - start_time >= timeout) {
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return FPC_BEP_RESULT_TIMEOUT;
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}
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uint8_t buff[size];
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fpc_bep_result_t res = hal_bmlite_spi_write_read(buff, data, size, false);
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#ifdef DEBUG_COMM
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LOG_DEBUG("<- ");
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for (int i=0; i<size; i++)
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LOG_DEBUG("%02X ", data[i]);
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LOG_DEBUG("\n");
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#endif
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return res;
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}
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__attribute__((weak)) uint32_t hal_check_button_pressed()
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{
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return 0;
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}
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