Current Path : /sys/arm/at91/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/arm/at91/uart_cpu_at91rm9200usart.c |
/*- * Copyright (c) 2003 Marcel Moolenaar * Copyright (c) 2006 M. Warner Losh * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "opt_uart.h" #include <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/arm/at91/uart_cpu_at91rm9200usart.c 217036 2011-01-05 23:45:07Z imp $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/bus.h> #include <sys/cons.h> #include <sys/lock.h> #include <sys/mutex.h> #include <machine/bus.h> #include <dev/uart/uart.h> #include <dev/uart/uart_bus.h> #include <dev/uart/uart_cpu.h> #include <arm/at91/at91rm92reg.h> #include <arm/at91/at91var.h> bus_space_tag_t uart_bus_space_io; bus_space_tag_t uart_bus_space_mem; extern struct uart_class at91_usart_class; extern struct bus_space at91_bs_tag; int uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2) { return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0); } int uart_cpu_getdev(int devtype, struct uart_devinfo *di) { struct uart_class *class; class = &at91_usart_class; if (class->uc_rclk == 0 && at91_master_clock != 0) class->uc_rclk = at91_master_clock; di->ops = uart_getops(class); di->bas.chan = 0; di->bas.bst = &at91_bs_tag; /* * XXX: Not pretty, but will work because we map the needed addresses * early. */ di->bas.bsh = AT91RM92_BASE + AT91RM92_DBGU_BASE; di->baudrate = 115200; di->bas.regshft = 0; di->bas.rclk = 0; di->databits = 8; di->stopbits = 1; di->parity = UART_PARITY_NONE; uart_bus_space_io = &at91_bs_tag; uart_bus_space_mem = NULL; /* Check the environment for overrides */ uart_getenv(devtype, di, class); return (0); }