From 8837b88c9d9cce383fd1e3467abadef51cbc5b1c Mon Sep 17 00:00:00 2001 From: schodet Date: Wed, 29 Jun 2005 21:54:48 +0000 Subject: Ajout de la partie host. --- n/avr/modules/uart/test_uart.c | 4 +- n/avr/modules/uart/uart.host.c | 98 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 100 insertions(+), 2 deletions(-) create mode 100644 n/avr/modules/uart/uart.host.c (limited to 'n/avr/modules') diff --git a/n/avr/modules/uart/test_uart.c b/n/avr/modules/uart/test_uart.c index 9d5f982..9ef7e7e 100644 --- a/n/avr/modules/uart/test_uart.c +++ b/n/avr/modules/uart/test_uart.c @@ -24,7 +24,7 @@ * }}} */ #include "modules/uart/uart.h" -#include +//#include /* +AutoDec */ /* -AutoDec */ @@ -32,7 +32,7 @@ int main (void) { - sei (); + //sei (); uart0_init (); uart0_putc ('N'); uart0_putc ('i'); diff --git a/n/avr/modules/uart/uart.host.c b/n/avr/modules/uart/uart.host.c new file mode 100644 index 0000000..3bbd112 --- /dev/null +++ b/n/avr/modules/uart/uart.host.c @@ -0,0 +1,98 @@ +/* uart.host.c */ +/* avr.uart - UART AVR module. {{{ + * + * Copyright (C) 2005 Nicolas Schodet + * + * Robot APB Team/Efrei 2006. + * Web: http://assos.efrei.fr/robot/ + * Email: robot AT efrei DOT fr + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * }}} */ +#define _GNU_SOURCE +#include "uart.h" + +#include "uart_common.h" + +#if AC_UART (PORT) != -1 + +#include +#include +#include +#include +#include +#include + +/* Pseudo terminal file descriptor. */ +static int uart_pt_fd; + +/** Initialise uart. */ +void +uart_init (void) +{ + /* Open and unlock pt. */ + uart_pt_fd = getpt (); + if (uart_pt_fd == -1) + assert_perror (errno); + if (grantpt (uart_pt_fd) == -1 || unlockpt (uart_pt_fd) == -1) + assert_perror (errno); + /* Display its name. */ + printf ("uart%d: %s\n", UART_N, ptsname (uart_pt_fd)); +} + +/** Read a char. */ +uint8_t +uart_getc (void) +{ + uint8_t c; + int n; + n = read (uart_pt_fd, &c, 1); + if (n == -1) + assert_perror (errno); + /* This is quite unusual... */ + if (n == 0) + return 0; + return c; +} + +/** Write a char. */ +void +uart_putc (uint8_t c) +{ + int n; + write (uart_pt_fd, &c, 1); +} + +/** Retrieve availlable chars. */ +uint8_t +uart_poll (void) +{ + fd_set fds; + struct timeval tv; + int r; + /* Use select to poll. */ + FD_ZERO (&fds); + FD_SET (uart_pt_fd, &fds); + tv.tv_sec = 0; + tv.tv_usec = 0; + r = select (FD_SETSIZE, &fds, 0, 0, &tv); + /* Check result. */ + if (r == -1) + assert_perror (errno); + return r; +} + +#endif /* AC_UART (PORT) != -1 */ -- cgit v1.2.3