static OSStatus platform_uart_receive_bytes( mico_uart_t uart, void* data, uint32_t size, uint32_t timeout )
{
uart_status_t retVal = kStatus_UART_Success;
uart = MICO_UART_1; //test
/* Reset DMA transmission result. The result is assigned in interrupt handler */
#if ADD_OS_CODE
uart_interfaces[uart].rx_dma_result = kGeneralErr;
#endif
#ifdef UART_IRQ_APP
retVal = UART_DRV_ReceiveDataBlocking(BOARD_APP_UART_INSTANCE, data, size, timeout);
// if(UART_DRV_ReceiveData(BOARD_APP_UART_INSTANCE, data,size )==kStatus_UART_Success){
#else
// if(UART_DRV_EdmaReceiveData(BOARD_DEBUG_UART_INSTANCE, data, size)==kStatus_UART_Success){
retVal = UART_DRV_EdmaReceiveDataBlocking(BOARD_APP_UART_INSTANCE, data, size, timeout);//
#endif
if(retVal == kStatus_UART_Success) {
#if ADD_OS_CODE
#ifndef NO_MICO_RTOS
mico_rtos_set_semaphore( &uart_interfaces[uart].rx_complete );
#else
uart_interfaces[uart ].rx_complete = true;
#endif
#endif
return kNoErr;
}
if ( timeout > 0 )
{
#if ADD_OS_CODE
#ifndef NO_MICO_RTOS
mico_rtos_get_semaphore( &uart_interfaces[uart].rx_complete, timeout );
#else
uart_interfaces[uart].rx_complete = false;
int delay_start = mico_get_time_no_os();
while(uart_interfaces[uart].rx_complete == false){
if(mico_get_time_no_os() >= delay_start + timeout && timeout != MICO_NEVER_TIMEOUT){
break;
}
}
#endif
return uart_interfaces[uart].rx_dma_result;
#endif
}
return kGeneralErr; // kNoErr;
}
static OSStatus receive_bytes( platform_uart_driver_t* driver, void* data, uint32_t size, uint32_t timeout )
{
OSStatus err = kNoErr;
if ( driver->rx_buffer != NULL )
{
driver->peripheral->rx_dma_config.stream->CR |= DMA_SxCR_CIRC;
// Enabled individual byte interrupts so progress can be updated
USART_ClearITPendingBit( driver->peripheral->port, USART_IT_RXNE );
USART_ITConfig( driver->peripheral->port, USART_IT_RXNE, ENABLE );
}
else
{
driver->rx_size = size;
driver->peripheral->rx_dma_config.stream->CR &= ~(uint32_t) DMA_SxCR_CIRC;
}
clear_dma_interrupts( driver->peripheral->rx_dma_config.stream, driver->peripheral->rx_dma_config.complete_flags | driver->peripheral->rx_dma_config.error_flags );
driver->peripheral->rx_dma_config.stream->NDTR = size;
driver->peripheral->rx_dma_config.stream->M0AR = (uint32_t)data;
driver->peripheral->rx_dma_config.stream->CR |= DMA_SxCR_EN;
USART_DMACmd( driver->peripheral->port, USART_DMAReq_Rx, ENABLE );
if ( timeout > 0 )
{
#ifndef NO_MICO_RTOS
err = mico_rtos_get_semaphore( &driver->rx_complete, timeout );
#else
driver->rx_complete = false;
int delay_start = mico_get_time_no_os();
while( driver->rx_complete == false ) {
if(mico_get_time_no_os() >= delay_start + timeout && timeout != MICO_NEVER_TIMEOUT) {
err = kTimeoutErr;
goto exit;
}
}
#endif
}
exit:
return err;
}
static OSStatus platform_uart_receive_bytes( mico_uart_t uart, void* data, uint32_t size, uint32_t timeout )
{
if ( uart_interfaces[uart].rx_buffer != NULL )
{
uart_mapping[uart].rx_dma_stream->CR |= DMA_SxCR_CIRC;
// Enabled individual byte interrupts so progress can be updated
USART_ITConfig( uart_mapping[uart].usart, USART_IT_RXNE, ENABLE );
}
else
{
uart_mapping[uart].rx_dma_stream->CR &= ~(uint32_t) DMA_SxCR_CIRC;
}
/* Reset DMA transmission result. The result is assigned in interrupt handler */
uart_interfaces[uart].rx_dma_result = kGeneralErr;
uart_mapping[uart].rx_dma_stream->NDTR = size;
uart_mapping[uart].rx_dma_stream->M0AR = (uint32_t)data;
uart_mapping[uart].rx_dma_stream->CR |= DMA_SxCR_EN;
if ( timeout > 0 )
{
#ifndef NO_MICO_RTOS
mico_rtos_get_semaphore( &uart_interfaces[uart].rx_complete, timeout );
#else
uart_interfaces[uart].rx_complete = false;
int delay_start = mico_get_time_no_os();
while(uart_interfaces[uart].rx_complete == false){
if(mico_get_time_no_os() >= delay_start + timeout && timeout != MICO_NEVER_TIMEOUT){
break;
}
}
#endif
return uart_interfaces[uart].rx_dma_result;
}
return kNoErr;
}
OSStatus platform_uart_receive_bytes( platform_uart_driver_t* driver, uint8_t* data_in, uint32_t expected_data_size, uint32_t timeout_ms )
{
OSStatus err = kNoErr;
//platform_mcu_powersave_disable();
require_action_quiet( ( driver != NULL ) && ( data_in != NULL ) && ( expected_data_size != 0 ), exit, err = kParamErr);
if ( driver->rx_buffer != NULL)
{
while ( expected_data_size != 0 )
{
uint32_t transfer_size = MIN( driver->rx_buffer->size / 2, expected_data_size );
/* Check if ring buffer already contains the required amount of data. */
if ( transfer_size > ring_buffer_used_space( driver->rx_buffer ) )
{
/* Set rx_size and wait in rx_complete semaphore until data reaches rx_size or timeout occurs */
driver->last_receive_result = kNoErr;
driver->rx_size = transfer_size;
#ifndef NO_MICO_RTOS
err = mico_rtos_get_semaphore( &driver->rx_complete, timeout_ms );
/* Reset rx_size to prevent semaphore being set while nothing waits for the data */
driver->rx_size = 0;
if( err != kNoErr )
goto exit;
#else
driver->rx_complete = false;
int delay_start = mico_get_time_no_os();
while(driver->rx_complete == false) {
if(mico_get_time_no_os() >= delay_start + timeout_ms && timeout_ms != MICO_NEVER_TIMEOUT) {
driver->rx_size = 0;
err = kTimeoutErr;
goto exit;
}
}
driver->rx_size = 0;
#endif
}
err = driver->last_receive_result;
expected_data_size -= transfer_size;
// Grab data from the buffer
do
{
uint8_t* available_data;
uint32_t bytes_available;
ring_buffer_get_data( driver->rx_buffer, &available_data, &bytes_available );
bytes_available = MIN( bytes_available, transfer_size );
memcpy( data_in, available_data, bytes_available );
transfer_size -= bytes_available;
data_in = ( (uint8_t*) data_in + bytes_available );
ring_buffer_consume( driver->rx_buffer, bytes_available );
} while ( transfer_size != 0 );
}
}
else
{
err = receive_bytes( driver, data_in, expected_data_size, timeout_ms );
}
exit:
//platform_mcu_powersave_enable();
return err;
}
OSStatus MicoUartRecv( mico_uart_t uart, void* data, uint32_t size, uint32_t timeout )
{
#if RING_BUFF_ON
if (uart_interfaces[uart].rx_buffer != NULL)
{
while (size != 0)
{
uint32_t transfer_size = MIN(uart_interfaces[uart].rx_buffer->size / 2, size);
/* Check if ring buffer already contains the required amount of data. */
if ( transfer_size > ring_buffer_used_space( uart_interfaces[uart].rx_buffer ) )
{
/* Set rx_size and wait in rx_complete semaphore until data reaches rx_size or timeout occurs */
uart_interfaces[uart].rx_size = transfer_size;
#ifndef NO_MICO_RTOS
if ( mico_rtos_get_semaphore( &uart_interfaces[uart].rx_complete, timeout) != kNoErr )
{
uart_interfaces[uart].rx_size = 0;
return kTimeoutErr;
}
#else
uart_interfaces[uart].rx_complete = false;
int delay_start = mico_get_time_no_os();
while(uart_interfaces[uart].rx_complete == false){
if(mico_get_time_no_os() >= delay_start + timeout && timeout != MICO_NEVER_TIMEOUT){
uart_interfaces[uart].rx_size = 0;
return kTimeoutErr;
}
}
#endif
/* Reset rx_size to prevent semaphore being set while nothing waits for the data */
uart_interfaces[uart].rx_size = 0;
}
size -= transfer_size;
// Grab data from the buffer
do
{
uint8_t* available_data;
uint32_t bytes_available;
//platform_log("uart receive 03");
ring_buffer_get_data( uart_interfaces[uart].rx_buffer, &available_data, &bytes_available );
bytes_available = MIN( bytes_available, transfer_size );
memcpy( data, available_data, bytes_available );
transfer_size -= bytes_available;
data = ( (uint8_t*) data + bytes_available );
ring_buffer_consume( uart_interfaces[uart].rx_buffer, bytes_available );
} while ( transfer_size != 0 );
}
if ( size != 0 )
{
return kGeneralErr;
}
else
{
return kNoErr;
}
}
else
{
return platform_uart_receive_bytes( uart, data, size, timeout );
}
#else
return platform_uart_receive_bytes( uart, data, size, timeout );
#endif
// return kNoErr;
}
void init_platform_bootloader( void )
{
CRC8_Context crc;
OSStatus err = kNoErr;
mico_logic_partition_t *rf_partition = MicoFlashGetInfo( MICO_PARTITION_RF_FIRMWARE );
MicoGpioInitialize( (mico_gpio_t)MICO_SYS_LED, OUTPUT_PUSH_PULL );
MicoGpioOutputLow( (mico_gpio_t)MICO_SYS_LED );
MicoGpioInitialize( (mico_gpio_t)MICO_RF_LED, OUTPUT_OPEN_DRAIN_NO_PULL );
MicoGpioOutputHigh( (mico_gpio_t)MICO_RF_LED );
MicoGpioInitialize((mico_gpio_t)BOOT_SEL, INPUT_PULL_UP);
MicoGpioInitialize((mico_gpio_t)MFG_SEL, INPUT_PULL_UP);
#ifdef USE_MiCOKit_EXT
dc_motor_init( );
dc_motor_set( 0 );
rgb_led_init();
rgb_led_open(0, 0, 0);
#endif
/* Specific operations used in EMW3165 production */
#define NEED_RF_DRIVER_COPY_BASE ((uint32_t)0x08008000)
#define TEMP_RF_DRIVER_BASE ((uint32_t)0x08040000)
#define TEMP_RF_DRIVER_END ((uint32_t)0x0807FFFF)
const uint8_t isDriverNeedCopy = *(uint8_t *)(NEED_RF_DRIVER_COPY_BASE);
const uint32_t totalLength = rf_partition->partition_length;
const uint8_t crcResult = *(uint8_t *)(TEMP_RF_DRIVER_END);
uint8_t targetCrcResult = 0;
uint32_t copyLength;
uint32_t destStartAddress_tmp = rf_partition->partition_start_addr;
uint32_t sourceStartAddress_tmp = TEMP_RF_DRIVER_BASE;
uint32_t i;
if ( isDriverNeedCopy != 0x0 )
return;
platform_log( "Bootloader start to copy RF driver..." );
/* Copy RF driver to SPI flash */
err = platform_flash_init( &platform_flash_peripherals[ MICO_FLASH_SPI ] );
require_noerr(err, exit);
err = platform_flash_init( &platform_flash_peripherals[ MICO_FLASH_EMBEDDED ] );
require_noerr(err, exit);
err = platform_flash_erase( &platform_flash_peripherals[ MICO_FLASH_SPI ],
rf_partition->partition_start_addr, rf_partition->partition_start_addr + rf_partition->partition_length - 1 );
require_noerr(err, exit);
platform_log( "Time: %d", mico_get_time_no_os() );
for(i = 0; i <= totalLength/SizePerRW; i++){
if( i == totalLength/SizePerRW ){
if(totalLength%SizePerRW)
copyLength = totalLength%SizePerRW;
else
break;
}else{
copyLength = SizePerRW;
}
printf(".");
err = platform_flash_read( &platform_flash_peripherals[ MICO_FLASH_EMBEDDED ], &sourceStartAddress_tmp, data , copyLength );
require_noerr( err, exit );
err = platform_flash_write( &platform_flash_peripherals[ MICO_FLASH_SPI ], &destStartAddress_tmp, data, copyLength );
require_noerr(err, exit);
}
printf("\r\n");
/* Check CRC-8 check-sum */
platform_log( "Bootloader start to verify RF driver..." );
sourceStartAddress_tmp = TEMP_RF_DRIVER_BASE;
destStartAddress_tmp = rf_partition->partition_start_addr;
CRC8_Init( &crc );
for(i = 0; i <= totalLength/SizePerRW; i++){
if( i == totalLength/SizePerRW ){
if(totalLength%SizePerRW)
copyLength = totalLength%SizePerRW;
else
break;
}else{
copyLength = SizePerRW;
}
printf(".");
err = platform_flash_read( &platform_flash_peripherals[ MICO_FLASH_SPI ], &destStartAddress_tmp, data, copyLength );
require_noerr( err, exit );
CRC8_Update( &crc, data, copyLength);
}
CRC8_Final( &crc, &targetCrcResult );
printf("\r\n");
//require_string( crcResult == targetCrcResult, exit, "Check-sum error" );
if( crcResult != targetCrcResult ){
platform_log("Check-sum error");
while(1);
}
/* Clear RF driver from temperary storage */
platform_log("Bootloader start to clear RF driver temporary storage...");
/* Clear copy tag */
err = platform_flash_erase( &platform_flash_peripherals[ MICO_FLASH_EMBEDDED ], NEED_RF_DRIVER_COPY_BASE, NEED_RF_DRIVER_COPY_BASE);
require_noerr(err, exit);
exit:
return;
}
OSStatus BUartRecv( mico_uart_t uart, void* data, uint32_t size, uint32_t timeout )
{
while (size != 0)
{
uint32_t transfer_size = MIN(uart_interfaces[uart].rx_buffer->size / 2, size);
/* Check if ring buffer already contains the required amount of data. */
if ( transfer_size > (uint32_t)BuartIOctl(BUART_IOCTL_RXFIFO_DATLEN_GET, 0) )
{
/* Set rx_size and wait in rx_complete semaphore until data reaches rx_size or timeout occurs */
uart_interfaces[uart].rx_size = transfer_size;
BuartIOctl(BUART_IOCTL_RXFIFO_TRGR_DEPTH_SET, uart_interfaces[uart].rx_size-1);
BuartIOctl(UART_IOCTL_RXINT_SET, 1);
#ifndef NO_MICO_RTOS
if ( mico_rtos_get_semaphore( &uart_interfaces[uart].rx_complete, timeout) != kNoErr )
{
//BuartIOctl(UART_IOCTL_RXINT_SET, 0);
uart_interfaces[uart].rx_size = 0;
return kTimeoutErr;
}
#else
uart_interfaces[uart].rx_complete = false;
int delay_start = mico_get_time_no_os();
while(uart_interfaces[uart].rx_complete == false){
if(mico_get_time_no_os() >= delay_start + timeout && timeout != MICO_NEVER_TIMEOUT){
uart_interfaces[uart].rx_size = 0;
return kTimeoutErr;
}
}
#endif
/* Reset rx_size to prevent semaphore being set while nothing waits for the data */
uart_interfaces[uart].rx_size = 0;
}
size -= transfer_size;
// Grab data from the buffer
do
{
uint32_t bytes_available;
bytes_available = (uint32_t)BuartIOctl(BUART_IOCTL_RXFIFO_DATLEN_GET, 0);
bytes_available = MIN( bytes_available, transfer_size );
BuartRecv(data, bytes_available, 0);
transfer_size -= bytes_available;
data = ( (uint8_t*) data + bytes_available );
} while ( transfer_size != 0 );
}
if ( size != 0 )
{
return kGeneralErr;
}
else
{
return kNoErr;
}
}
void init_platform_bootloader( void )
{
OSStatus err = kNoErr;
MicoGpioInitialize( (mico_gpio_t)MICO_SYS_LED, OUTPUT_PUSH_PULL );
MicoGpioOutputLow( (mico_gpio_t)MICO_SYS_LED );
MicoGpioInitialize( (mico_gpio_t)MICO_RF_LED, OUTPUT_OPEN_DRAIN_NO_PULL );
MicoGpioOutputHigh( (mico_gpio_t)MICO_RF_LED );
MicoGpioInitialize((mico_gpio_t)BOOT_SEL, INPUT_PULL_UP);
MicoGpioInitialize((mico_gpio_t)MFG_SEL, INPUT_PULL_UP);
/* Specific operations used in EMW3165 production */
#define NEED_RF_DRIVER_COPY_BASE ((uint32_t)0x08008000)
#define TEMP_RF_DRIVER_BASE ((uint32_t)0x08040000)
#define TEMP_RF_DRIVER_END ((uint32_t)0x0807FFFF)
const uint8_t isDriverNeedCopy = *(uint8_t *)(NEED_RF_DRIVER_COPY_BASE);
const uint32_t totalLength = ( DRIVER_FLASH_SIZE < 0x40000)? DRIVER_FLASH_SIZE:0x40000;
const uint8_t crcResult = *(uint8_t *)(TEMP_RF_DRIVER_END);
uint8_t targetCrcResult = 0;
uint32_t copyLength;
uint32_t destStartAddress_tmp = DRIVER_START_ADDRESS;
uint32_t sourceStartAddress_tmp = TEMP_RF_DRIVER_BASE;
uint32_t i;
if ( isDriverNeedCopy != 0x0 )
return;
platform_log( "Bootloader start to copy RF driver..." );
/* Copy RF driver to SPI flash */
err = MicoFlashInitialize( (mico_flash_t)MICO_FLASH_FOR_DRIVER );
require_noerr(err, exit);
err = MicoFlashInitialize( (mico_flash_t)MICO_INTERNAL_FLASH );
require_noerr(err, exit);
err = MicoFlashErase( MICO_FLASH_FOR_DRIVER, DRIVER_START_ADDRESS, DRIVER_END_ADDRESS );
require_noerr(err, exit);
platform_log( "Time: %d", mico_get_time_no_os() );
for(i = 0; i <= totalLength/SizePerRW; i++){
if( i == totalLength/SizePerRW ){
if(totalLength%SizePerRW)
copyLength = totalLength%SizePerRW;
else
break;
}else{
copyLength = SizePerRW;
}
printf(".");
err = MicoFlashRead( MICO_INTERNAL_FLASH, &sourceStartAddress_tmp, data , copyLength );
require_noerr( err, exit );
err = MicoFlashWrite( MICO_FLASH_FOR_DRIVER, &destStartAddress_tmp, data, copyLength);
require_noerr(err, exit);
}
printf("\r\n");
/* Check CRC-8 check-sum */
platform_log( "Bootloader start to verify RF driver..." );
sourceStartAddress_tmp = TEMP_RF_DRIVER_BASE;
destStartAddress_tmp = DRIVER_START_ADDRESS;
for(i = 0; i <= totalLength/SizePerRW; i++){
if( i == totalLength/SizePerRW ){
if(totalLength%SizePerRW)
copyLength = totalLength%SizePerRW;
else
break;
}else{
copyLength = SizePerRW;
}
printf(".");
err = MicoFlashRead( MICO_FLASH_FOR_DRIVER, &destStartAddress_tmp, data, copyLength );
require_noerr( err, exit );
targetCrcResult = CRC8_Table(targetCrcResult, data, copyLength);
}
printf("\r\n");
//require_string( crcResult == targetCrcResult, exit, "Check-sum error" );
if( crcResult != targetCrcResult ){
platform_log("Check-sum error");
while(1);
}
/* Clear RF driver from temperary storage */
platform_log("Bootloader start to clear RF driver temporary storage...");
err = MicoFlashInitialize( (mico_flash_t)MICO_INTERNAL_FLASH );
require_noerr(err, exit);
/* Clear copy tag */
err = MicoFlashErase(MICO_INTERNAL_FLASH, NEED_RF_DRIVER_COPY_BASE, NEED_RF_DRIVER_COPY_BASE);
require_noerr(err, exit);
exit:
MicoFlashFinalize( MICO_INTERNAL_FLASH );
MicoFlashFinalize( MICO_FLASH_FOR_DRIVER );
}
static OSStatus BUartRecv( platform_uart_driver_t* driver, void* data, uint32_t size, uint32_t timeout )
{
int next_trigger;
uint32_t recved_data_len = (uint32_t)BuartIOctl(BUART_IOCTL_RXFIFO_DATLEN_GET, 0);
uint32_t delay_start = 0;
while (size != 0)
{
uint32_t transfer_size = MIN( BUART_RX_FIFO_SIZE / 2, size );
/* Check if ring buffer already contains the required amount of data. */
if ( transfer_size > recved_data_len )
{
/* Set rx_size and wait in rx_complete semaphore until data reaches rx_size or timeout occurs */
driver->rx_size = transfer_size;
next_trigger = (driver->buart_fifo_head + driver->rx_size - 1)% BUART_RX_FIFO_SIZE;
/* */
if( next_trigger < driver->buart_fifo_head && (driver->buart_fifo_head + recved_data_len) < BUART_RX_FIFO_SIZE ){
BuartIOctl( BUART_IOCTL_RXFIFO_TRGR_DEPTH_SET, BUART_RX_FIFO_SIZE - 1 );
BuartIOctl(UART_IOCTL_RXINT_CLR, 0);
BuartIOctl(UART_IOCTL_RXINT_SET, 1);
#ifndef NO_MICO_RTOS
#if 0
if ( mico_rtos_get_semaphore( &driver->rx_complete, timeout) != kNoErr )
{
driver->rx_size = 0;
BuartIOctl(UART_IOCTL_RXINT_SET, 0);
return kTimeoutErr;
}
#else
delay_start = mico_get_time();
while(1){
mico_rtos_get_semaphore( &driver->rx_complete, 50);
if( (BUART_RX_FIFO_SIZE - driver->buart_fifo_head) <= (uint32_t)BuartIOctl(BUART_IOCTL_RXFIFO_DATLEN_GET, 0) )
break;
if( mico_get_time() - delay_start > timeout ){
driver->rx_size = 0;
BuartIOctl(UART_IOCTL_RXINT_SET, 0);
return kTimeoutErr;
}
}
#endif
#else
driver->rx_complete = false;
int delay_start = mico_get_time_no_os();
while(driver->rx_complete == false){
if(mico_get_time_no_os() >= delay_start + timeout && timeout != MICO_NEVER_TIMEOUT){
driver->rx_size = 0;
BuartIOctl(UART_IOCTL_RXINT_SET, 0);
return kTimeoutErr;
}
}
#endif
mico_thread_msleep(20);
}
#ifndef NO_MICO_RTOS
#if 1
recved_data_len = (uint32_t)BuartIOctl(BUART_IOCTL_RXFIFO_DATLEN_GET, 0);
if ( transfer_size > recved_data_len ){
BuartIOctl(UART_IOCTL_RXINT_CLR, 0);
BuartIOctl( BUART_IOCTL_RXFIFO_TRGR_DEPTH_SET, next_trigger );
BuartIOctl(UART_IOCTL_RXINT_SET, 1);
if ( mico_rtos_get_semaphore( &driver->rx_complete, timeout) != kNoErr )
{
driver->rx_size = 0;
BuartIOctl(UART_IOCTL_RXINT_SET, 0);
return kTimeoutErr;
}
}
else{
driver->rx_size = 0;
}
#else
//platform_log( "Waiting...,head:%d expext:%d trigger:%d", driver->buart_fifo_head, driver->rx_size, next_trigger );
BuartIOctl(UART_IOCTL_RXINT_CLR, 0);
BuartIOctl( BUART_IOCTL_RXFIFO_TRGR_DEPTH_SET, next_trigger );
BuartIOctl(UART_IOCTL_RXINT_SET, 1);
delay_start = mico_get_time();
while(1){
mico_rtos_get_semaphore( &driver->rx_complete, 50);
if( driver->rx_size <= (uint32_t)BuartIOctl(BUART_IOCTL_RXFIFO_DATLEN_GET, 0) )
break;
if( mico_get_time() - delay_start > timeout ){
driver->rx_size = 0;
BuartIOctl(UART_IOCTL_RXINT_SET, 0);
return kTimeoutErr;
}
}
#endif
#else
BuartIOctl(UART_IOCTL_RXINT_CLR, 0);
BuartIOctl( BUART_IOCTL_RXFIFO_TRGR_DEPTH_SET, next_trigger );
BuartIOctl(UART_IOCTL_RXINT_SET, 1);
driver->rx_complete = false;
delay_start = mico_get_time_no_os();
while(driver->rx_complete == false){
if(mico_get_time_no_os() >= delay_start + timeout && timeout != MICO_NEVER_TIMEOUT){
driver->rx_size = 0;
BuartIOctl(UART_IOCTL_RXINT_SET, 0);
return kTimeoutErr;
}
}
#endif
/* Reset rx_size to prevent semaphore being set while nothing waits for the data */
driver->rx_size = 0;
}
size -= transfer_size;
// Grab data from the buffer
do
{
uint32_t bytes_available;
bytes_available = (uint32_t)BuartIOctl(BUART_IOCTL_RXFIFO_DATLEN_GET, 0);
bytes_available = MIN( bytes_available, transfer_size );
BuartRecv(data, bytes_available, 0);
driver->buart_fifo_head = (driver->buart_fifo_head + bytes_available)% BUART_RX_FIFO_SIZE;
transfer_size -= bytes_available;
} while ( transfer_size != 0 );
}
if ( size != 0 )
{
return kGeneralErr;
}
else
{
return kNoErr;
}
}
static OSStatus FUartRecv( platform_uart_driver_t* driver, void* data, uint32_t size, uint32_t timeout )
{
if ( driver->rx_buffer != NULL )
{
while (size != 0)
{
uint32_t transfer_size = MIN( driver->rx_buffer->size/2, size );
/* Check if ring buffer already contains the required amount of data. */
if ( transfer_size > ring_buffer_used_space( driver->rx_buffer ) )
{
/* Set rx_size and wait in rx_complete semaphore until data reaches rx_size or timeout occurs */
driver->rx_size = transfer_size;
#ifndef NO_MICO_RTOS
if ( mico_rtos_get_semaphore( &driver->rx_complete, timeout) != kNoErr )
{
driver->rx_size = 0;
return kTimeoutErr;
}
#else
driver->rx_complete = false;
int delay_start = mico_get_time_no_os();
while(driver->rx_complete == false){
if(mico_get_time_no_os() >= delay_start + timeout && timeout != MICO_NEVER_TIMEOUT){
driver->rx_size = 0;
return kTimeoutErr;
}
}
#endif
/* Reset rx_size to prevent semaphore being set while nothing waits for the data */
driver->rx_size = 0;
}
size -= transfer_size;
// Grab data from the buffer
do
{
uint8_t* available_data;
uint32_t bytes_available;
ring_buffer_get_data( driver->rx_buffer, &available_data, &bytes_available );
bytes_available = MIN( bytes_available, transfer_size );
memcpy( data, available_data, bytes_available );
transfer_size -= bytes_available;
data = ( (uint8_t*) data + bytes_available );
ring_buffer_consume( driver->rx_buffer, bytes_available );
} while ( transfer_size != 0 );
}
if ( size != 0 )
{
return kGeneralErr;
}
else
{
return kNoErr;
}
}
else
{
mico_thread_msleep(timeout);
return kNoMemoryErr;
}
}
