1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright 2002 by Peter Grehan. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * PSIM local bus 16550 32 */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/bus.h> 37 #include <sys/conf.h> 38 #include <sys/kernel.h> 39 #include <sys/lock.h> 40 #include <sys/malloc.h> 41 #include <sys/mutex.h> 42 #include <sys/module.h> 43 #include <machine/bus.h> 44 #include <sys/timepps.h> 45 46 #include <dev/ofw/openfirm.h> 47 #include <powerpc/psim/iobusvar.h> 48 49 #include <dev/uart/uart.h> 50 #include <dev/uart/uart_bus.h> 51 52 static int uart_iobus_probe(device_t dev); 53 54 static device_method_t uart_iobus_methods[] = { 55 /* Device interface */ 56 DEVMETHOD(device_probe, uart_iobus_probe), 57 DEVMETHOD(device_attach, uart_bus_attach), 58 DEVMETHOD(device_detach, uart_bus_detach), 59 { 0, 0 } 60 }; 61 62 static driver_t uart_iobus_driver = { 63 uart_driver_name, 64 uart_iobus_methods, 65 sizeof(struct uart_softc), 66 }; 67 68 static int 69 uart_iobus_probe(device_t dev) 70 { 71 struct uart_softc *sc; 72 char *type; 73 74 type = iobus_get_name(dev); 75 if (strncmp(type, "com", 3) != 0) 76 return (ENXIO); 77 78 sc = device_get_softc(dev); 79 sc->sc_class = &uart_ns8250_class; 80 81 device_set_desc(dev, "PSIM serial port"); 82 return (uart_bus_probe(dev, 0, 0, 0, 0, 0, 0)); 83 } 84 85 DRIVER_MODULE(uart, iobus, uart_iobus_driver, 0, 0); 86