diff options
Diffstat (limited to 'drivers/pci/hotplug/rpaphp.h')
| -rw-r--r-- | drivers/pci/hotplug/rpaphp.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/rpaphp.h b/drivers/pci/hotplug/rpaphp.h new file mode 100644 index 000000000..bdc954d70 --- /dev/null +++ b/drivers/pci/hotplug/rpaphp.h @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform. + * + * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com> + * + * All rights reserved. + * + * Send feedback to <lxie@us.ibm.com>, + * + */ + +#ifndef _PPC64PHP_H +#define _PPC64PHP_H + +#include <linux/pci.h> +#include <linux/pci_hotplug.h> + +#define DR_INDICATOR 9002 +#define DR_ENTITY_SENSE 9003 + +#define POWER_ON 100 +#define POWER_OFF 0 + +#define LED_OFF 0 +#define LED_ON 1 /* continuous on */ +#define LED_ID 2 /* slow blinking */ +#define LED_ACTION 3 /* fast blinking */ + +/* Sensor values from rtas_get-sensor */ +#define EMPTY 0 /* No card in slot */ +#define PRESENT 1 /* Card in slot */ + +#define MY_NAME "rpaphp" +extern bool rpaphp_debug; +#define dbg(format, arg...) \ + do { \ + if (rpaphp_debug) \ + printk(KERN_DEBUG "%s: " format, \ + MY_NAME, ## arg); \ + } while (0) +#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME, ## arg) +#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME, ## arg) +#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME, ## arg) + +/* slot states */ + +#define NOT_VALID 3 +#define NOT_CONFIGURED 2 +#define CONFIGURED 1 +#define EMPTY 0 + +/* DRC constants */ + +#define MAX_DRC_NAME_LEN 64 + +/* + * struct slot - slot information for each *physical* slot + */ +struct slot { + struct list_head rpaphp_slot_list; + int state; + u32 index; + u32 type; + u32 power_domain; + u8 attention_status; + char *name; + struct device_node *dn; + struct pci_bus *bus; + struct list_head *pci_devs; + struct hotplug_slot hotplug_slot; +}; + +extern const struct hotplug_slot_ops rpaphp_hotplug_slot_ops; +extern struct list_head rpaphp_slot_head; + +static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot) +{ + return container_of(hotplug_slot, struct slot, hotplug_slot); +} + +/* function prototypes */ + +/* rpaphp_pci.c */ +int rpaphp_enable_slot(struct slot *slot); +int rpaphp_get_sensor_state(struct slot *slot, int *state); + +/* rpaphp_core.c */ +int rpaphp_add_slot(struct device_node *dn); +int rpaphp_check_drc_props(struct device_node *dn, char *drc_name, + char *drc_type); + +/* rpaphp_slot.c */ +void dealloc_slot_struct(struct slot *slot); +struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain); +int rpaphp_register_slot(struct slot *slot); +int rpaphp_deregister_slot(struct slot *slot); + +#endif /* _PPC64PHP_H */ |