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