1 /*- 2 * Copyright (c) 2001 M. Warner Losh. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #include <sys/cdefs.h> 26 __FBSDID("$FreeBSD$"); 27 28 #include <sys/param.h> 29 #include <sys/systm.h> 30 #include <sys/bus.h> 31 #include <sys/conf.h> 32 #include <sys/kernel.h> 33 #include <sys/module.h> 34 #include <machine/bus.h> 35 #include <sys/rman.h> 36 #include <machine/resource.h> 37 38 #include <isa/isavar.h> 39 40 #include <dev/uart/uart.h> 41 #include <dev/uart/uart_bus.h> 42 43 static int uart_acpi_probe(device_t dev); 44 45 static device_method_t uart_acpi_methods[] = { 46 /* Device interface */ 47 DEVMETHOD(device_probe, uart_acpi_probe), 48 DEVMETHOD(device_attach, uart_bus_attach), 49 DEVMETHOD(device_detach, uart_bus_detach), 50 DEVMETHOD(device_resume, uart_bus_resume), 51 { 0, 0 } 52 }; 53 54 static driver_t uart_acpi_driver = { 55 uart_driver_name, 56 uart_acpi_methods, 57 sizeof(struct uart_softc), 58 }; 59 60 static struct isa_pnp_id acpi_ns8250_ids[] = { 61 {0x0005d041, "Standard PC COM port"}, /* PNP0500 */ 62 {0x0105d041, "16550A-compatible COM port"}, /* PNP0501 */ 63 {0x0205d041, "Multiport serial device (non-intelligent 16550)"}, /* PNP0502 */ 64 {0x1005d041, "Generic IRDA-compatible device"}, /* PNP0510 */ 65 {0x1105d041, "Generic IRDA-compatible device"}, /* PNP0511 */ 66 {0x04f0235c, "Wacom Tablet PC Screen"}, /* WACF004 */ 67 {0xe502aa1a, "Wacom Tablet at FuS Lifebook T"}, /* FUJ02E5 */ 68 {0} 69 }; 70 71 static int 72 uart_acpi_probe(device_t dev) 73 { 74 struct uart_softc *sc; 75 device_t parent; 76 77 parent = device_get_parent(dev); 78 sc = device_get_softc(dev); 79 80 if (!ISA_PNP_PROBE(parent, dev, acpi_ns8250_ids)) { 81 sc->sc_class = &uart_ns8250_class; 82 return (uart_bus_probe(dev, 0, 0, 0, 0)); 83 } 84 85 /* Add checks for non-ns8250 IDs here. */ 86 return (ENXIO); 87 } 88 89 DRIVER_MODULE(uart, acpi, uart_acpi_driver, uart_devclass, 0, 0); 90