mirror of
https://gitea.osmocom.org/sim-card/simtrace2.git
synced 2026-03-17 05:38:33 +03:00
82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/* ----------------------------------------------------------------------------
|
|
* ATMEL Microcontroller Software Support
|
|
* ----------------------------------------------------------------------------
|
|
* Copyright (c) 2009, Atmel Corporation
|
|
*
|
|
* 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 disclaimer below.
|
|
*
|
|
* Atmel's name may not be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* Headers
|
|
*------------------------------------------------------------------------------*/
|
|
|
|
#include "board.h"
|
|
|
|
#include <string.h>
|
|
|
|
volatile uint32_t char_stat;
|
|
|
|
// FIXME: Remove:
|
|
#define PR TRACE_INFO
|
|
//#define PR printf
|
|
|
|
volatile ringbuf sim_rcv_buf = { {0}, 0, 0 };
|
|
|
|
/*
|
|
* char_stat is zero if no error occured.
|
|
* Otherwise it is filled with the content of the status register.
|
|
*/
|
|
void USART1_IrqHandler( void )
|
|
{
|
|
uint32_t stat;
|
|
char_stat = 0;
|
|
// Rcv buf full
|
|
/* if((stat & US_CSR_RXBUFF) == US_CSR_RXBUFF) {
|
|
TRACE_DEBUG("Rcv buf full");
|
|
USART_DisableIt(USART1, US_IDR_RXBUFF);
|
|
}
|
|
*/
|
|
uint32_t csr = USART_PHONE->US_CSR;
|
|
|
|
if (csr & US_CSR_TXRDY) {
|
|
/* transmit buffer empty, nothing to transmit */
|
|
}
|
|
if (csr & US_CSR_RXRDY) {
|
|
stat = (csr&(US_CSR_OVRE|US_CSR_FRAME|
|
|
US_CSR_PARE|US_CSR_TIMEOUT|US_CSR_NACK|
|
|
(1<<10)));
|
|
uint8_t c = (USART_PHONE->US_RHR) & 0xFF;
|
|
// printf(" %x", c);
|
|
|
|
if (stat == 0 ) {
|
|
/* Fill char into buffer */
|
|
rbuf_write(&sim_rcv_buf, c);
|
|
} else {
|
|
PR("e %x st: %x\n", c, stat);
|
|
} /* else: error occured */
|
|
|
|
char_stat = stat;
|
|
}
|
|
}
|