/* * (C) Copyright 2004 Atmark Techno, Inc. * * Yasushi SHOJI <yashi@atmark-techno.com> * * See file CREDITS for list of people who contributed to this * project. * * 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 */ #include <config.h> #ifdef CONFIG_MICROBLAZE #include <asm/serial_xuartlite.h> /* FIXME: we should convert these to in32 and out32 */ #define IO_WORD(offset) (*(volatile unsigned long *)(offset)) #define IO_SERIAL(offset) IO_WORD(CONFIG_SERIAL_BASE + (offset)) #define IO_SERIAL_RX_FIFO IO_SERIAL(XUL_RX_FIFO_OFFSET) #define IO_SERIAL_TX_FIFO IO_SERIAL(XUL_TX_FIFO_OFFSET) #define IO_SERIAL_STATUS IO_SERIAL(XUL_STATUS_REG_OFFSET) #define IO_SERIAL_CONTROL IO_SERIAL(XUL_CONTROL_REG_OFFSET) int serial_init(void) { /* FIXME: Nothing for now. We should initialize fifo, etc */ return 0; } void serial_setbrg(void) { /* FIXME: what's this for? */ } void serial_putc(const char c) { if (c == '\n') serial_putc('\r'); while (IO_SERIAL_STATUS & XUL_SR_TX_FIFO_FULL); IO_SERIAL_TX_FIFO = (unsigned char) (c & 0xff); } void serial_puts(const char * s) { while (*s) { serial_putc(*s++); } } int serial_getc(void) { while (!(IO_SERIAL_STATUS & XUL_SR_RX_FIFO_VALID_DATA)); return IO_SERIAL_RX_FIFO & 0xff; } int serial_tstc(void) { return (IO_SERIAL_STATUS & XUL_SR_RX_FIFO_VALID_DATA); } #endif /* CONFIG_MICROBLZE */