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/*
* mgmt-misc.c
* -----------
* Miscellaneous CLI functions.
*
* Copyright (c) 2016, NORDUnet A/S All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the NORDUnet nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "stm-init.h"
#include "stm-uart.h"
#include "mgmt-cli.h"
#include "mgmt-misc.h"
#include <string.h>
extern uint32_t update_crc(uint32_t crc, uint8_t *buf, int len);
int cli_receive_data(struct cli_def *cli, uint8_t *buf, size_t len, cli_data_callback data_callback)
{
uint32_t filesize = 0, crc = 0, my_crc = 0, counter = 0;
size_t n = len;
if (! control_mgmt_uart_dma_rx(DMA_RX_STOP)) {
cli_print(cli, "Failed stopping DMA");
goto okay;
}
cli_print(cli, "OK, write size (4 bytes), data in %li byte chunks, CRC-32 (4 bytes)", (uint32_t) n);
if (uart_receive_bytes(STM_UART_MGMT, (void *) &filesize, 4, 1000) != HAL_OK) {
cli_print(cli, "Receive timed out");
goto fail;
}
cli_print(cli, "Send %li bytes of data", filesize);
while (filesize) {
/* By initializing buf to the same value that erased flash has (0xff), we don't
* have to try and be smart when writing the last page of data to a flash memory.
*/
memset(buf, 0xff, len);
if (filesize < n) n = filesize;
if (uart_receive_bytes(STM_UART_MGMT, (void *) buf, n, 1000) != HAL_OK) {
cli_print(cli, "Receive timed out");
goto fail;
}
filesize -= n;
my_crc = update_crc(my_crc, buf, n);
/* After reception of a chunk but before ACKing we have "all" the time in the world to
* calculate CRC and invoke the data_callback.
*/
if (data_callback != NULL && ! data_callback(buf, (size_t) n)) {
cli_print(cli, "Data processing failed");
goto okay;
}
counter++;
uart_send_bytes(STM_UART_MGMT, (void *) &counter, 4);
}
cli_print(cli, "Send CRC-32");
uart_receive_bytes(STM_UART_MGMT, (void *) &crc, 4, 1000);
cli_print(cli, "CRC-32 0x%x, calculated CRC 0x%x", (unsigned int) crc, (unsigned int) my_crc);
if (crc == my_crc) {
cli_print(cli, "CRC checksum MATCHED");
} else {
cli_print(cli, "CRC checksum did NOT match");
}
okay:
control_mgmt_uart_dma_rx(DMA_RX_START);
return CLI_OK;
fail:
control_mgmt_uart_dma_rx(DMA_RX_START);
return CLI_ERROR;
}
static int cmd_reboot(struct cli_def *cli, const char *command, char *argv[], int argc)
{
cli_print(cli, "\n\n\nRebooting\n\n\n");
HAL_NVIC_SystemReset();
/*NOTREACHED*/
return CLI_OK;
}
void configure_cli_misc(struct cli_def *cli)
{
/* reboot */
cli_register_command(cli, NULL, "reboot", cmd_reboot, 0, 0, "Reboot the STM32");
}
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