blob: 35ee7b0cdd157369b385041f1bced51ee783f11a [file] [log] [blame]
/*
*
* Copyright (c) 2020 Project CHIP Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
/**
* @file
* Source implementation of an input / output stream for MW320 targets.
*/
#include <lib/shell/Engine.h>
#include <lib/shell/streamer.h>
#include <fcntl.h>
#include <lib/core/CHIPError.h>
#include <stdio.h>
#include <string.h>
#ifdef MW320_SHELL_STREAMER
#include "board.h"
#include "clock_config.h"
#include "fsl_uart.h"
#include "pin_mux.h"
#define DEMO_LPUART UART0
#define DEMO_LPUART_CLK_FREQ BOARD_DEBUG_UART_CLK_FREQ
#ifndef BOARD_DEBUG_UART_BAUDRATE
#define BOARD_DEBUG_UART_BAUDRATE (115200U)
#endif /* BOARD_DEBUG_UART_BAUDRATE */
namespace chip {
namespace Shell {
int streamer_mw320_init(streamer_t * streamer)
{
uart_config_t config;
/*
* config.baudRate_Bps = 115200U;
* config.parityMode = kLPUART_ParityDisabled;
* config.stopBitCount = kLPUART_OneStopBit;
* config.txFifoWatermark = 0;
* config.rxFifoWatermark = 0;
* config.enableTx = false;
* config.enableRx = false;
*/
UART_GetDefaultConfig(&config);
config.baudRate_Bps = BOARD_DEBUG_UART_BAUDRATE;
config.enable = true;
config.fifoConfig.txFifoWatermark = kUART_TxfifoHalfEmpty;
config.fifoConfig.rxFifoWatermark = kUART_RxfifoByte1;
UART_Init(DEMO_LPUART, &config, DEMO_LPUART_CLK_FREQ);
return 0;
}
int streamer_mw320_read(streamer_t * streamer, char * buf, size_t len)
{
if (UART_ReadBlocking(DEMO_LPUART, (uint8_t *) buf, len) == 0)
{
return len;
}
else
{
return 0;
}
}
int streamer_mw320_write(streamer_t * streamer, const char * buf, size_t len)
{
if (UART_WriteBlocking(DEMO_LPUART, (const unsigned char *) buf, len) == 0)
{
return len;
}
else
{
return 0;
}
}
static streamer_t streamer_mw320 = {
.init_cb = streamer_mw320_init,
.read_cb = streamer_mw320_read,
.write_cb = streamer_mw320_write,
};
streamer_t * streamer_get(void)
{
return &streamer_mw320;
}
} // namespace Shell
} // namespace chip
#endif // #ifdef MW320_SHELL_STREAMER