uart_bus_puc.c revision 158124
1119815Smarcel/*- 2158124Smarcel * Copyright (c) 2006 Marcel Moolenaar. All rights reserved. 3119815Smarcel * Copyright (c) 2002 JF Hay. All rights reserved. 4119815Smarcel * Copyright (c) 2001 M. Warner Losh. All rights reserved. 5119815Smarcel * 6119815Smarcel * Redistribution and use in source and binary forms, with or without 7119815Smarcel * modification, are permitted provided that the following conditions 8119815Smarcel * are met: 9119815Smarcel * 1. Redistributions of source code must retain the above copyright 10119815Smarcel * notice, this list of conditions and the following disclaimer. 11119815Smarcel * 2. Redistributions in binary form must reproduce the above copyright 12119815Smarcel * notice, this list of conditions and the following disclaimer in the 13119815Smarcel * documentation and/or other materials provided with the distribution. 14119815Smarcel * 15119815Smarcel * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16119815Smarcel * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17119815Smarcel * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18119815Smarcel * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19119815Smarcel * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20119815Smarcel * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21119815Smarcel * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22119815Smarcel * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23119815Smarcel * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24119815Smarcel * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25119815Smarcel */ 26119815Smarcel 27119815Smarcel#include <sys/cdefs.h> 28119815Smarcel__FBSDID("$FreeBSD: head/sys/dev/uart/uart_bus_puc.c 158124 2006-04-28 21:21:53Z marcel $"); 29119815Smarcel 30119815Smarcel#include <sys/param.h> 31119815Smarcel#include <sys/systm.h> 32119815Smarcel#include <sys/bus.h> 33119815Smarcel#include <sys/conf.h> 34119815Smarcel#include <sys/kernel.h> 35119815Smarcel#include <sys/module.h> 36158124Smarcel 37119815Smarcel#include <machine/bus.h> 38119815Smarcel#include <sys/rman.h> 39119815Smarcel#include <machine/resource.h> 40119815Smarcel 41158124Smarcel#include <dev/puc/puc_bus.h> 42119815Smarcel 43119815Smarcel#include <dev/uart/uart.h> 44119815Smarcel#include <dev/uart/uart_bus.h> 45119815Smarcel 46119815Smarcelstatic int uart_puc_probe(device_t dev); 47119815Smarcel 48119815Smarcelstatic device_method_t uart_puc_methods[] = { 49119815Smarcel /* Device interface */ 50119815Smarcel DEVMETHOD(device_probe, uart_puc_probe), 51119815Smarcel DEVMETHOD(device_attach, uart_bus_attach), 52119815Smarcel DEVMETHOD(device_detach, uart_bus_detach), 53158124Smarcel /* Serdev interface */ 54158124Smarcel DEVMETHOD(serdev_ihand, uart_bus_ihand), 55158124Smarcel DEVMETHOD(serdev_ipend, uart_bus_ipend), 56119815Smarcel { 0, 0 } 57119815Smarcel}; 58119815Smarcel 59119815Smarcelstatic driver_t uart_puc_driver = { 60119815Smarcel uart_driver_name, 61119815Smarcel uart_puc_methods, 62119815Smarcel sizeof(struct uart_softc), 63119815Smarcel}; 64119815Smarcel 65119815Smarcelstatic int 66119815Smarceluart_puc_probe(device_t dev) 67119815Smarcel{ 68119815Smarcel device_t parent; 69119815Smarcel struct uart_softc *sc; 70158124Smarcel uintptr_t rclk, type; 71119815Smarcel 72119815Smarcel parent = device_get_parent(dev); 73119815Smarcel sc = device_get_softc(dev); 74119815Smarcel 75158124Smarcel if (BUS_READ_IVAR(parent, dev, PUC_IVAR_TYPE, &type)) 76119815Smarcel return (ENXIO); 77158124Smarcel if (type != PUC_TYPE_SERIAL) 78119815Smarcel return (ENXIO); 79119815Smarcel 80158124Smarcel sc->sc_class = &uart_ns8250_class; 81158124Smarcel 82158124Smarcel if (BUS_READ_IVAR(parent, dev, PUC_IVAR_CLOCK, &rclk)) 83119815Smarcel rclk = 0; 84158124Smarcel return (uart_bus_probe(dev, 0, rclk, 0, 0)); 85119815Smarcel} 86119815Smarcel 87119815SmarcelDRIVER_MODULE(uart, puc, uart_puc_driver, uart_devclass, 0, 0); 88