| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * CompactPCI Hot Plug Core Functions |
| * |
| * Copyright (C) 2002 SOMA Networks, Inc. |
| * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) |
| * Copyright (C) 2001 IBM Corp. |
| * |
| * All rights reserved. |
| * |
| * Send feedback to <scottm@somanetworks.com> |
| */ |
| |
| #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 */ |
