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1/* SPDX-License-Identifier: GPL-2.0+ */2/*3 * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform.4 *5 * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com>6 *7 * All rights reserved.8 *9 * Send feedback to <lxie@us.ibm.com>,10 *11 */12 13#ifndef _PPC64PHP_H14#define _PPC64PHP_H15 16#include <linux/pci.h>17#include <linux/pci_hotplug.h>18 19#define DR_INDICATOR 900220#define DR_ENTITY_SENSE 900321 22#define POWER_ON 10023#define POWER_OFF 024 25#define LED_OFF 026#define LED_ON 1 /* continuous on */27#define LED_ID 2 /* slow blinking */28#define LED_ACTION 3 /* fast blinking */29 30/* Sensor values from rtas_get-sensor */31#define EMPTY 0 /* No card in slot */32#define PRESENT 1 /* Card in slot */33 34#define MY_NAME "rpaphp"35extern bool rpaphp_debug;36#define dbg(format, arg...) \37 do { \38 if (rpaphp_debug) \39 printk(KERN_DEBUG "%s: " format, \40 MY_NAME, ## arg); \41 } while (0)42#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME, ## arg)43#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME, ## arg)44#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME, ## arg)45 46/* slot states */47 48#define NOT_VALID 349#define NOT_CONFIGURED 250#define CONFIGURED 151#define EMPTY 052 53/* DRC constants */54 55#define MAX_DRC_NAME_LEN 6456 57/*58 * struct slot - slot information for each *physical* slot59 */60struct slot {61 struct list_head rpaphp_slot_list;62 int state;63 u32 index;64 u32 type;65 u32 power_domain;66 u8 attention_status;67 char *name;68 struct device_node *dn;69 struct pci_bus *bus;70 struct list_head *pci_devs;71 struct hotplug_slot hotplug_slot;72};73 74extern const struct hotplug_slot_ops rpaphp_hotplug_slot_ops;75extern struct list_head rpaphp_slot_head;76 77static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot)78{79 return container_of(hotplug_slot, struct slot, hotplug_slot);80}81 82/* function prototypes */83 84/* rpaphp_pci.c */85int rpaphp_enable_slot(struct slot *slot);86int rpaphp_get_sensor_state(struct slot *slot, int *state);87 88/* rpaphp_core.c */89int rpaphp_add_slot(struct device_node *dn);90int rpaphp_check_drc_props(struct device_node *dn, char *drc_name,91 char *drc_type);92 93/* rpaphp_slot.c */94void dealloc_slot_struct(struct slot *slot);95struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);96int rpaphp_register_slot(struct slot *slot);97int rpaphp_deregister_slot(struct slot *slot);98 99#endif /* _PPC64PHP_H */100