105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* CompactPCI Hot Plug Core Functions
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*
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* Copyright (C) 2002 SOMA Networks, Inc.
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* Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
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* Copyright (C) 2001 IBM Corp.
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*
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* All rights reserved.
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*
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* Send feedback to <scottm@somanetworks.com>
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*/
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#ifndef _CPCI_HOTPLUG_H
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#define _CPCI_HOTPLUG_H
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/pci_hotplug.h>
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/* PICMG 2.1 R2.0 HS CSR bits: */
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#define HS_CSR_INS 0x0080
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#define HS_CSR_EXT 0x0040
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#define HS_CSR_PI 0x0030
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#define HS_CSR_LOO 0x0008
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#define HS_CSR_PIE 0x0004
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#define HS_CSR_EIM 0x0002
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#define HS_CSR_DHA 0x0001
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struct slot {
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u8 number;
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unsigned int devfn;
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struct pci_bus *bus;
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struct pci_dev *dev;
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unsigned int latch_status:1;
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unsigned int adapter_status:1;
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unsigned int extracting;
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struct hotplug_slot hotplug_slot;
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struct list_head slot_list;
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};
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struct cpci_hp_controller_ops {
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int (*query_enum)(void);
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int (*enable_irq)(void);
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int (*disable_irq)(void);
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int (*check_irq)(void *dev_id);
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int (*hardware_test)(struct slot *slot, u32 value);
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u8 (*get_power)(struct slot *slot);
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int (*set_power)(struct slot *slot, int value);
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};
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struct cpci_hp_controller {
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unsigned int irq;
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unsigned long irq_flags;
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char *devname;
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void *dev_id;
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char *name;
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struct cpci_hp_controller_ops *ops;
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};
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static inline const char *slot_name(struct slot *slot)
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{
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return hotplug_slot_name(&slot->hotplug_slot);
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}
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static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot)
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{
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return container_of(hotplug_slot, struct slot, hotplug_slot);
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}
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int cpci_hp_register_controller(struct cpci_hp_controller *controller);
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int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
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int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
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int cpci_hp_unregister_bus(struct pci_bus *bus);
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int cpci_hp_start(void);
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int cpci_hp_stop(void);
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/* Global variables */
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extern int cpci_debug;
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/*
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* Internal function prototypes, these functions should not be used by
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* board/chassis drivers.
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*/
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u8 cpci_get_attention_status(struct slot *slot);
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u8 cpci_get_latch_status(struct slot *slot);
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u8 cpci_get_adapter_status(struct slot *slot);
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u16 cpci_get_hs_csr(struct slot *slot);
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int cpci_set_attention_status(struct slot *slot, int status);
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int cpci_check_and_clear_ins(struct slot *slot);
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int cpci_check_ext(struct slot *slot);
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int cpci_clear_ext(struct slot *slot);
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int cpci_led_on(struct slot *slot);
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int cpci_led_off(struct slot *slot);
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int cpci_configure_slot(struct slot *slot);
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int cpci_unconfigure_slot(struct slot *slot);
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#ifdef CONFIG_HOTPLUG_PCI_CPCI
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int cpci_hotplug_init(int debug);
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#else
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static inline int cpci_hotplug_init(int debug) { return 0; }
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#endif
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#endif /* _CPCI_HOTPLUG_H */
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