FreeBSD/Linux Kernel Cross Reference
sys/dev/uart/uart_cpu_acpi.h

     /*-
      * 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 *cd_hid;
            struct uart_class *cd_class;
    
            uint16_t cd_port_subtype;
            int cd_regshft;
            int cd_regiowidth;
            int cd_rclk;
            int cd_quirks;
            const char *cd_desc;
    };
    
    /*
     * 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)
    
    /* Try to initialize UART device from SPCR data. */
    int uart_cpu_acpi_spcr(int devtype, struct uart_devinfo *di);
    
    #endif /* _DEV_UART_CPU_ACPI_H_ */

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