sio_puc.c revision 123910
1/*- 2 * Copyright (c) 2002 JF Hay. All rights reserved. 3 * Copyright (c) 2001 M. Warner Losh. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h> 27__FBSDID("$FreeBSD: head/sys/dev/sio/sio_puc.c 123910 2003-12-27 19:47:10Z imp $"); 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/bus.h> 32#include <sys/conf.h> 33#include <sys/kernel.h> 34#include <sys/lock.h> 35#include <sys/malloc.h> 36#include <sys/mutex.h> 37#include <sys/module.h> 38#include <sys/tty.h> 39#include <machine/bus_pio.h> 40#include <machine/bus.h> 41#include <sys/timepps.h> 42 43#include <dev/pci/pcivar.h> 44#include <dev/puc/pucvar.h> 45#include <dev/sio/siovar.h> 46#include <dev/sio/sioreg.h> 47 48static int sio_puc_attach(device_t dev); 49static int sio_puc_probe(device_t dev); 50 51static device_method_t sio_puc_methods[] = { 52 /* Device interface */ 53 DEVMETHOD(device_probe, sio_puc_probe), 54 DEVMETHOD(device_attach, sio_puc_attach), 55 DEVMETHOD(device_detach, siodetach), 56 57 { 0, 0 } 58}; 59 60static driver_t sio_puc_driver = { 61 sio_driver_name, 62 sio_puc_methods, 63 0, 64}; 65 66static int 67sio_puc_attach(dev) 68 device_t dev; 69{ 70 uintptr_t rclk; 71 72 if (BUS_READ_IVAR(device_get_parent(dev), dev, PUC_IVAR_FREQ, 73 &rclk) != 0) 74 rclk = DEFAULT_RCLK; 75 return (sioattach(dev, 0, rclk)); 76} 77 78static int 79sio_puc_probe(dev) 80 device_t dev; 81{ 82 uintptr_t rclk; 83 84 if (BUS_READ_IVAR(device_get_parent(dev), dev, PUC_IVAR_FREQ, 85 &rclk) != 0) 86 rclk = DEFAULT_RCLK; 87#ifdef PC98 88 SET_FLAG(dev, SET_IFTYPE(COM_IF_NS16550)); 89#endif 90 return (sioprobe(dev, 0, rclk, 1)); 91} 92 93DRIVER_MODULE(sio, puc, sio_puc_driver, sio_devclass, 0, 0); 94