linux-imx

// SPDX-License-Identifier: GPL-2.0+

/*

 * ACPI PCI Hot Plug IBM Extension

 *

 * Copyright (C) 2004 Vernon Mauery <vernux@us.ibm.com>

 * Copyright (C) 2004 IBM Corp.

 *

 * All rights reserved.

 *

 * Send feedback to <vernux@us.ibm.com>

 *

 */

​

#define pr_fmt(fmt) "acpiphp_ibm: " fmt

​

#include <linux/init.h>

#include <linux/slab.h>

#include <linux/module.h>

#include <linux/kernel.h>

#include <linux/sysfs.h>

#include <linux/kobject.h>

#include <linux/moduleparam.h>

#include <linux/pci.h>

#include <linux/uaccess.h>

​

#include "acpiphp.h"

#include "../pci.h"

​

#define DRIVER_VERSION  "1.0.1"

#define DRIVER_AUTHOR   "Irene Zubarev <zubarev@us.ibm.com>, Vernon Mauery <vernux@us.ibm.com>"

#define DRIVER_DESC "ACPI Hot Plug PCI Controller Driver IBM extension"

​

​

MODULE_AUTHOR(DRIVER_AUTHOR);

MODULE_DESCRIPTION(DRIVER_DESC);

MODULE_LICENSE("GPL");

MODULE_VERSION(DRIVER_VERSION);

​

#define FOUND_APCI 0x61504349

/* these are the names for the IBM ACPI pseudo-device */

#define IBM_HARDWARE_ID1 "IBM37D0"

#define IBM_HARDWARE_ID2 "IBM37D4"

​

#define hpslot_to_sun(A) (to_slot(A)->sun)

​

/* union apci_descriptor - allows access to the

 * various device descriptors that are embedded in the

 * aPCI table

 */

union apci_descriptor {

    struct {

        char sig[4];

        u8   len;

    } header;

    struct {

        u8  type;

        u8  len;

        u16 slot_id;

        u8  bus_id;

        u8  dev_num;

        u8  slot_num;

        u8  slot_attr[2];

        u8  attn;