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87 lines
3.4 KiB
C
87 lines
3.4 KiB
C
/******************************************************************************
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* *
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* License Agreement *
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* *
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* Copyright (c) 2006 Altera Corporation, San Jose, California, USA. *
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* All rights reserved. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the "Software"), *
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* to deal in the Software without restriction, including without limitation *
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
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* and/or sell copies of the Software, and to permit persons to whom the *
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* Software is furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in *
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* all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
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* DEALINGS IN THE SOFTWARE. *
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* *
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* This agreement shall be governed in all respects by the laws of the State *
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* of California and by the laws of the United States of America. *
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* *
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******************************************************************************/
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#include <string.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <limits.h>
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#include <sys/stat.h>
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#include "sys/ioctl.h"
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#include "alt_types.h"
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#include "altera_avalon_jtag_uart_regs.h"
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#include "altera_avalon_jtag_uart.h"
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#include "sys/alt_log_printf.h"
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#ifndef ALTERA_AVALON_JTAG_UART_SMALL
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/* ----------------------------------------------------------- */
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/* ------------------------- FAST DRIVER --------------------- */
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/* ----------------------------------------------------------- */
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int
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altera_avalon_jtag_uart_ioctl(altera_avalon_jtag_uart_state* sp, int req,
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void* arg)
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{
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int rc = -ENOTTY;
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switch (req)
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{
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case TIOCSTIMEOUT:
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/* Set the time to wait until assuming host is not connected */
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if (sp->timeout != INT_MAX)
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{
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int timeout = *((int *)arg);
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sp->timeout = (timeout >= 2 && timeout < INT_MAX) ? timeout : INT_MAX - 1;
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rc = 0;
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}
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break;
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case TIOCGCONNECTED:
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/* Find out whether host is connected */
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if (sp->timeout != INT_MAX)
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{
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*((int *)arg) = (sp->host_inactive < sp->timeout) ? 1 : 0;
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rc = 0;
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}
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break;
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default:
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break;
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}
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return rc;
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}
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#endif /* !ALTERA_AVALON_JTAG_UART_SMALL */
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