diff options
Diffstat (limited to 'drivers/pci/hotplug/cpci_hotplug.h')
| -rw-r--r-- | drivers/pci/hotplug/cpci_hotplug.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/cpci_hotplug.h b/drivers/pci/hotplug/cpci_hotplug.h new file mode 100644 index 000000000..3fdd1b9bd --- /dev/null +++ b/drivers/pci/hotplug/cpci_hotplug.h @@ -0,0 +1,104 @@ +/* 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 */ |