uart_bus_puc.c revision 119815
1119815Smarcel/*- 2119815Smarcel * Copyright (c) 2002 JF Hay. All rights reserved. 3119815Smarcel * Copyright (c) 2001 M. Warner Losh. All rights reserved. 4119815Smarcel * 5119815Smarcel * Redistribution and use in source and binary forms, with or without 6119815Smarcel * modification, are permitted provided that the following conditions 7119815Smarcel * are met: 8119815Smarcel * 1. Redistributions of source code must retain the above copyright 9119815Smarcel * notice, this list of conditions and the following disclaimer. 10119815Smarcel * 2. Redistributions in binary form must reproduce the above copyright 11119815Smarcel * notice, this list of conditions and the following disclaimer in the 12119815Smarcel * documentation and/or other materials provided with the distribution. 13119815Smarcel * 14119815Smarcel * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15119815Smarcel * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16119815Smarcel * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17119815Smarcel * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18119815Smarcel * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19119815Smarcel * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20119815Smarcel * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21119815Smarcel * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22119815Smarcel * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23119815Smarcel * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24119815Smarcel */ 25119815Smarcel 26119815Smarcel#include <sys/cdefs.h> 27119815Smarcel__FBSDID("$FreeBSD: head/sys/dev/uart/uart_bus_puc.c 119815 2003-09-06 23:13:47Z marcel $"); 28119815Smarcel 29119815Smarcel#include <sys/param.h> 30119815Smarcel#include <sys/systm.h> 31119815Smarcel#include <sys/bus.h> 32119815Smarcel#include <sys/conf.h> 33119815Smarcel#include <sys/kernel.h> 34119815Smarcel#include <sys/module.h> 35119815Smarcel#include <machine/bus.h> 36119815Smarcel#include <sys/rman.h> 37119815Smarcel#include <machine/resource.h> 38119815Smarcel 39119815Smarcel#include <dev/pci/pcivar.h> 40119815Smarcel#include <dev/puc/pucvar.h> 41119815Smarcel 42119815Smarcel#include <dev/uart/uart.h> 43119815Smarcel#include <dev/uart/uart_bus.h> 44119815Smarcel 45119815Smarcelstatic int uart_puc_probe(device_t dev); 46119815Smarcel 47119815Smarcelstatic device_method_t uart_puc_methods[] = { 48119815Smarcel /* Device interface */ 49119815Smarcel DEVMETHOD(device_probe, uart_puc_probe), 50119815Smarcel DEVMETHOD(device_attach, uart_bus_attach), 51119815Smarcel DEVMETHOD(device_detach, uart_bus_detach), 52119815Smarcel { 0, 0 } 53119815Smarcel}; 54119815Smarcel 55119815Smarcelstatic driver_t uart_puc_driver = { 56119815Smarcel uart_driver_name, 57119815Smarcel uart_puc_methods, 58119815Smarcel sizeof(struct uart_softc), 59119815Smarcel}; 60119815Smarcel 61119815Smarcelstatic int 62119815Smarceluart_puc_probe(device_t dev) 63119815Smarcel{ 64119815Smarcel device_t parent; 65119815Smarcel struct uart_softc *sc; 66119815Smarcel uintptr_t rclk, regshft, type; 67119815Smarcel 68119815Smarcel parent = device_get_parent(dev); 69119815Smarcel sc = device_get_softc(dev); 70119815Smarcel 71119815Smarcel if (BUS_READ_IVAR(parent, dev, PUC_IVAR_SUBTYPE, &type)) 72119815Smarcel return (ENXIO); 73119815Smarcel switch (type) { 74119815Smarcel case PUC_PORT_UART_NS8250: 75119815Smarcel sc->sc_class = &uart_ns8250_class; 76119815Smarcel break; 77119815Smarcel case PUC_PORT_UART_SAB82532: 78119815Smarcel sc->sc_class = &uart_sab82532_class; 79119815Smarcel break; 80119815Smarcel case PUC_PORT_UART_Z8530: 81119815Smarcel sc->sc_class = &uart_z8530_class; 82119815Smarcel break; 83119815Smarcel default: 84119815Smarcel return (ENXIO); 85119815Smarcel } 86119815Smarcel 87119815Smarcel if (BUS_READ_IVAR(parent, dev, PUC_IVAR_FREQ, &rclk)) 88119815Smarcel rclk = 0; 89119815Smarcel if (BUS_READ_IVAR(parent, dev, PUC_IVAR_REGSHFT, ®shft)) 90119815Smarcel regshft = 0; 91119815Smarcel return (uart_bus_probe(dev, regshft, rclk, 0)); 92119815Smarcel} 93119815Smarcel 94119815SmarcelDRIVER_MODULE(uart, puc, uart_puc_driver, uart_devclass, 0, 0); 95