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1/* SPDX-License-Identifier: GPL-2.0+ */2/*3 * CompactPCI Hot Plug Core Functions4 *5 * Copyright (C) 2002 SOMA Networks, Inc.6 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)7 * Copyright (C) 2001 IBM Corp.8 *9 * All rights reserved.10 *11 * Send feedback to <scottm@somanetworks.com>12 */13 14#ifndef _CPCI_HOTPLUG_H15#define _CPCI_HOTPLUG_H16 17#include <linux/types.h>18#include <linux/pci.h>19#include <linux/pci_hotplug.h>20 21/* PICMG 2.1 R2.0 HS CSR bits: */22#define HS_CSR_INS 0x008023#define HS_CSR_EXT 0x004024#define HS_CSR_PI 0x003025#define HS_CSR_LOO 0x000826#define HS_CSR_PIE 0x000427#define HS_CSR_EIM 0x000228#define HS_CSR_DHA 0x000129 30struct slot {31 u8 number;32 unsigned int devfn;33 struct pci_bus *bus;34 struct pci_dev *dev;35 unsigned int latch_status:1;36 unsigned int adapter_status:1;37 unsigned int extracting;38 struct hotplug_slot hotplug_slot;39 struct list_head slot_list;40};41 42struct cpci_hp_controller_ops {43 int (*query_enum)(void);44 int (*enable_irq)(void);45 int (*disable_irq)(void);46 int (*check_irq)(void *dev_id);47 int (*hardware_test)(struct slot *slot, u32 value);48 u8 (*get_power)(struct slot *slot);49 int (*set_power)(struct slot *slot, int value);50};51 52struct cpci_hp_controller {53 unsigned int irq;54 unsigned long irq_flags;55 char *devname;56 void *dev_id;57 char *name;58 struct cpci_hp_controller_ops *ops;59};60 61static inline const char *slot_name(struct slot *slot)62{63 return hotplug_slot_name(&slot->hotplug_slot);64}65 66static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot)67{68 return container_of(hotplug_slot, struct slot, hotplug_slot);69}70 71int cpci_hp_register_controller(struct cpci_hp_controller *controller);72int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);73int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);74int cpci_hp_unregister_bus(struct pci_bus *bus);75int cpci_hp_start(void);76int cpci_hp_stop(void);77 78/* Global variables */79extern int cpci_debug;80 81/*82 * Internal function prototypes, these functions should not be used by83 * board/chassis drivers.84 */85u8 cpci_get_attention_status(struct slot *slot);86u16 cpci_get_hs_csr(struct slot *slot);87int cpci_set_attention_status(struct slot *slot, int status);88int cpci_check_and_clear_ins(struct slot *slot);89int cpci_check_ext(struct slot *slot);90int cpci_clear_ext(struct slot *slot);91int cpci_led_on(struct slot *slot);92int cpci_led_off(struct slot *slot);93int cpci_configure_slot(struct slot *slot);94int cpci_unconfigure_slot(struct slot *slot);95 96#ifdef CONFIG_HOTPLUG_PCI_CPCI97int cpci_hotplug_init(int debug);98#else99static inline int cpci_hotplug_init(int debug) { return 0; }100#endif101 102#endif /* _CPCI_HOTPLUG_H */103