00001 /* 00002 * Copyright Droids Corporation, Microb Technology, Eirbot (2005) 00003 * 00004 * This program is free software; you can redistribute it and/or modify 00005 * it under the terms of the GNU General Public License as published by 00006 * the Free Software Foundation; either version 2 of the License, or 00007 * (at your option) any later version. 00008 * 00009 * This program is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 * GNU General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU General Public License 00015 * along with this program; if not, write to the Free Software 00016 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00017 * 00018 * Revision : $Id: uart_send9.c,v 1.2 2009-03-15 21:51:18 zer0 Exp $ 00019 * 00020 */ 00021 00022 /* Olivier MATZ, Droids-corp 2004 - 2009 */ 00023 00024 #include <uart.h> 00025 #include <uart_defs.h> 00026 #include <uart_private.h> 00027 00028 int uart_send_9bits(uint8_t num, int c) 00029 { 00030 /* if cannot send the char */ 00031 if (uart_send_9bits_nowait(num, c) == -1) { 00032 00033 /* if irq lock are masked and interrupt mode is on, we 00034 * have to poll the status register */ 00035 if (GLOBAL_IRQ_ARE_MASKED() && (*uart_regs[num].ucsrb & (1 << RXCIE)) ) { 00036 while( !(*uart_regs[num].ucsra & (1 << UDRE)) ); 00037 /* send the next char in the fifo to free two 00038 * places */ 00039 uart_send_next_char(num); 00040 cirbuf_add_buf_head(&g_tx_fifo[num], (char *)&c, 2); 00041 } 00042 else { 00043 /* if irq are not locked, we can loop to emit */ 00044 while(uart_send_9bits_nowait(num, c) == -1); 00045 } 00046 } 00047 return c; 00048 }
1.5.6