freebsd-nq/sys/dev/uart/uart_cpu_acpi.h
Andrew Turner eba1a249df Add support to find the arm64 serial using the ACPI tables. This uses the
Serial Port Console Redirection Table to find the device to use.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-11-21 19:26:58 +00:00

64 lines
2.3 KiB
C

/*-
* Copyright (c) 2015 Michal Meloun
* Copyright (c) 2016 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Andrew Turner under
* sponsorship from the FreeBSD Foundation.
*
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
#ifndef _DEV_UART_CPU_ACPI_H_
#define _DEV_UART_CPU_ACPI_H_
#include <sys/linker_set.h>
struct uart_class;
struct acpi_uart_compat_data {
const char *hid;
struct uart_class *clas;
uint16_t port_subtype;
};
/*
* If your UART driver implements only uart_class and uses uart_cpu_acpi.c
* for device instantiation, then use UART_ACPI_CLASS_AND_DEVICE for its
* declaration
*/
SET_DECLARE(uart_acpi_class_and_device_set, struct acpi_uart_compat_data);
#define UART_ACPI_CLASS_AND_DEVICE(data) \
DATA_SET(uart_acpi_class_and_device_set, data)
/*
* If your UART driver implements uart_class and custom device layer,
* then use UART_ACPI_CLASS for its declaration
*/
SET_DECLARE(uart_acpi_class_set, struct acpi_uart_compat_data);
#define UART_ACPI_CLASS(data) \
DATA_SET(uart_acpi_class_set, data)
#endif /* _DEV_UART_CPU_ACPI_H_ */