| /****************************************************************************** |
| * * |
| * 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. * |
| * * |
| * * |
| ******************************************************************************/ |
| |
| #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 */ |