freebsd-dev/sys/dev/uart/uart_bus_acpi.c
Andrew Turner 951154084f Fix the build:
* Add acpi_if.h to the SRC list in the uart module
 * Only include new acpi headers when they are needed

Obtained from:	ABT Systems Ltd
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-07-21 13:01:35 +00:00

125 lines
3.7 KiB
C

/*-
* Copyright (c) 2001 M. Warner Losh. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <isa/isavar.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_bus.h>
#include <dev/uart/uart_cpu_acpi.h>
#ifdef __aarch64__
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <dev/acpica/acpivar.h>
#endif
static int uart_acpi_probe(device_t dev);
static device_method_t uart_acpi_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, uart_acpi_probe),
DEVMETHOD(device_attach, uart_bus_attach),
DEVMETHOD(device_detach, uart_bus_detach),
DEVMETHOD(device_resume, uart_bus_resume),
{ 0, 0 }
};
static driver_t uart_acpi_driver = {
uart_driver_name,
uart_acpi_methods,
sizeof(struct uart_softc),
};
#if defined(__i386__) || defined(__amd64__)
static struct isa_pnp_id acpi_ns8250_ids[] = {
{0x0005d041, "Standard PC COM port"}, /* PNP0500 */
{0x0105d041, "16550A-compatible COM port"}, /* PNP0501 */
{0x0205d041, "Multiport serial device (non-intelligent 16550)"}, /* PNP0502 */
{0x1005d041, "Generic IRDA-compatible device"}, /* PNP0510 */
{0x1105d041, "Generic IRDA-compatible device"}, /* PNP0511 */
{0x04f0235c, "Wacom Tablet PC Screen"}, /* WACF004 */
{0xe502aa1a, "Wacom Tablet at FuS Lifebook T"}, /* FUJ02E5 */
{0}
};
#endif
#ifdef __aarch64__
static struct uart_class *
uart_acpi_find_device(device_t dev)
{
struct acpi_uart_compat_data **cd;
ACPI_HANDLE h;
if ((h = acpi_get_handle(dev)) == NULL)
return (NULL);
SET_FOREACH(cd, uart_acpi_class_and_device_set) {
if (acpi_MatchHid(h, (*cd)->hid)) {
return ((*cd)->clas);
}
}
return (NULL);
}
#endif
static int
uart_acpi_probe(device_t dev)
{
struct uart_softc *sc;
device_t parent;
parent = device_get_parent(dev);
sc = device_get_softc(dev);
#if defined(__i386__) || defined(__amd64__)
if (!ISA_PNP_PROBE(parent, dev, acpi_ns8250_ids)) {
sc->sc_class = &uart_ns8250_class;
return (uart_bus_probe(dev, 0, 0, 0, 0));
}
/* Add checks for non-ns8250 IDs here. */
#elif defined(__aarch64__)
if ((sc->sc_class = uart_acpi_find_device(dev)) != NULL)
return (uart_bus_probe(dev, 2, 0, 0, 0));
#endif
return (ENXIO);
}
DRIVER_MODULE(uart, acpi, uart_acpi_driver, uart_devclass, 0, 0);