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[/] [ao486/] [trunk/] [syn/] [components/] [sd_card/] [firmware/] [bsp/] [drivers/] [src/] [altera_avalon_jtag_uart_ioctl.c] - Rev 8
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/****************************************************************************** * * * License Agreement * * * * Copyright (c) 2006 Altera Corporation, San Jose, California, USA. * * All rights reserved. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the "Software"), * * to deal in the Software without restriction, including without limitation * * the rights to use, copy, modify, merge, publish, distribute, sublicense, * * and/or sell copies of the Software, and to permit persons to whom the * * Software is furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included in * * all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * * DEALINGS IN THE SOFTWARE. * * * * This agreement shall be governed in all respects by the laws of the State * * of California and by the laws of the United States of America. * * * ******************************************************************************/ #include <string.h> #include <fcntl.h> #include <errno.h> #include <limits.h> #include <sys/stat.h> #include "sys/ioctl.h" #include "alt_types.h" #include "altera_avalon_jtag_uart_regs.h" #include "altera_avalon_jtag_uart.h" #include "sys/alt_log_printf.h" #ifndef ALTERA_AVALON_JTAG_UART_SMALL /* ----------------------------------------------------------- */ /* ------------------------- FAST DRIVER --------------------- */ /* ----------------------------------------------------------- */ int altera_avalon_jtag_uart_ioctl(altera_avalon_jtag_uart_state* sp, int req, void* arg) { int rc = -ENOTTY; switch (req) { case TIOCSTIMEOUT: /* Set the time to wait until assuming host is not connected */ if (sp->timeout != INT_MAX) { int timeout = *((int *)arg); sp->timeout = (timeout >= 2 && timeout < INT_MAX) ? timeout : INT_MAX - 1; rc = 0; } break; case TIOCGCONNECTED: /* Find out whether host is connected */ if (sp->timeout != INT_MAX) { *((int *)arg) = (sp->host_inactive < sp->timeout) ? 1 : 0; rc = 0; } break; default: break; } return rc; } #endif /* !ALTERA_AVALON_JTAG_UART_SMALL */