1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform.
5 * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com>
9 * Send feedback to <lxie@us.ibm.com>,
16 #include <linux/pci.h>
17 #include <linux/pci_hotplug.h>
19 #define DR_INDICATOR 9002
20 #define DR_ENTITY_SENSE 9003
26 #define LED_ON 1 /* continuous on */
27 #define LED_ID 2 /* slow blinking */
28 #define LED_ACTION 3 /* fast blinking */
30 /* Sensor values from rtas_get-sensor */
31 #define EMPTY 0 /* No card in slot */
32 #define PRESENT 1 /* Card in slot */
34 #define MY_NAME "rpaphp"
35 extern bool rpaphp_debug
;
36 #define dbg(format, arg...) \
39 printk(KERN_DEBUG "%s: " format, \
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)
49 #define NOT_CONFIGURED 2
55 #define MAX_DRC_NAME_LEN 64
58 * struct slot - slot information for each *physical* slot
61 struct list_head rpaphp_slot_list
;
68 struct device_node
*dn
;
70 struct list_head
*pci_devs
;
71 struct hotplug_slot
*hotplug_slot
;
74 extern const struct hotplug_slot_ops rpaphp_hotplug_slot_ops
;
75 extern struct list_head rpaphp_slot_head
;
77 /* function prototypes */
80 int rpaphp_enable_slot(struct slot
*slot
);
81 int rpaphp_get_sensor_state(struct slot
*slot
, int *state
);
84 int rpaphp_add_slot(struct device_node
*dn
);
85 int rpaphp_check_drc_props(struct device_node
*dn
, char *drc_name
,
89 void dealloc_slot_struct(struct slot
*slot
);
90 struct slot
*alloc_slot_struct(struct device_node
*dn
, int drc_index
, char *drc_name
, int power_domain
);
91 int rpaphp_register_slot(struct slot
*slot
);
92 int rpaphp_deregister_slot(struct slot
*slot
);
94 #endif /* _PPC64PHP_H */