drivers/pci/hotplug/rpaphp.h

   1 /*
   2  * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform.
   3  *
   4  * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com>
   5  *
   6  * All rights reserved.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or (at
  11  * your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  16  * NON INFRINGEMENT.  See the GNU General Public License for more
  17  * details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  *
  23  * Send feedback to <lxie@us.ibm.com>,
  24  *
  25  */
  26
  27 #ifndef _PPC64PHP_H
  28 #define _PPC64PHP_H
  29
  30 #include <linux/pci.h>
  31 #include "pci_hotplug.h"
  32
  33 #define PHB     2
  34 #define HOTPLUG 1
  35 #define EMBEDDED 0
  36
  37 #define DR_INDICATOR 9002
  38 #define DR_ENTITY_SENSE 9003
  39
  40 #define POWER_ON        100
  41 #define POWER_OFF       0
  42
  43 #define LED_OFF         0
  44 #define LED_ON          1       /* continuous on */
  45 #define LED_ID          2       /* slow blinking */
  46 #define LED_ACTION      3       /* fast blinking */
  47
  48 /* Sensor values from rtas_get-sensor */
  49 #define EMPTY           0       /* No card in slot */
  50 #define PRESENT         1       /* Card in slot */
  51
  52 #define MY_NAME "rpaphp"
  53 extern int debug;
  54 #define dbg(format, arg...)                                     \
  55         do {                                                    \
  56                 if (debug)                                      \
  57                         printk(KERN_DEBUG "%s: " format,        \
  58                                 MY_NAME , ## arg);              \
  59         } while (0)
  60 #define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
  61 #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
  62 #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
  63
  64 /* slot types */
  65 #define VIO_DEV 1
  66 #define PCI_DEV 2
  67
  68 /* slot states */
  69
  70 #define NOT_VALID       3
  71 #define NOT_CONFIGURED  2
  72 #define CONFIGURED      1
  73 #define EMPTY           0
  74
  75 struct rpaphp_pci_func {
  76         struct pci_dev *pci_dev;
  77         struct list_head sibling;
  78 };
  79
  80 /*
  81  * struct slot - slot information for each *physical* slot
  82  */
  83 struct slot {
  84         struct list_head rpaphp_slot_list;
  85         int state;
  86         u32 index;
  87         u32 type;
  88         u32 power_domain;
  89         char *name;
  90         char *location;
  91         u8 removable;
  92         u8 dev_type;            /* VIO or PCI */
  93         struct device_node *dn; /* slot's device_node in OFDT */
  94                                 /* dn has phb info */
  95         struct pci_dev *bridge; /* slot's pci_dev in pci_devices */
  96         union {
  97                 struct list_head *pci_devs; /* pci_devs in PCI slot */
  98                 struct vio_dev *vio_dev; /* vio_dev in VIO slot */
  99         } dev;
 100         struct hotplug_slot *hotplug_slot;
 101 };
 102
 103 extern struct hotplug_slot_ops rpaphp_hotplug_slot_ops;
 104 extern struct list_head rpaphp_slot_head;
 105 extern int num_slots;
 106
 107 /* function prototypes */
 108
 109 /* rpaphp_pci.c */
 110 extern struct pci_dev *rpaphp_find_pci_dev(struct device_node *dn);
 111 extern int rpaphp_claim_resource(struct pci_dev *dev, int resource);
 112 extern int rpaphp_enable_pci_slot(struct slot *slot);
 113 extern int register_pci_slot(struct slot *slot);
 114 extern int rpaphp_unconfig_pci_adapter(struct slot *slot);
 115 extern int rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value);
 116 extern struct hotplug_slot *rpaphp_find_hotplug_slot(struct pci_dev *dev);
 117
 118 /* rpaphp_core.c */
 119 extern int rpaphp_add_slot(struct device_node *dn);
 120 extern int rpaphp_remove_slot(struct slot *slot);
 121 extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
 122                 char **drc_name, char **drc_type, int *drc_power_domain);
 123
 124 /* rpaphp_vio.c */
 125 extern int rpaphp_get_vio_adapter_status(struct slot *slot, int is_init, u8 * value);
 126 extern int rpaphp_unconfig_vio_adapter(struct slot *slot);
 127 extern int register_vio_slot(struct device_node *dn);
 128 extern int rpaphp_enable_vio_slot(struct slot *slot);
 129
 130 /* rpaphp_slot.c */
 131 extern void dealloc_slot_struct(struct slot *slot);
 132 extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
 133 extern int register_slot(struct slot *slot);
 134 extern int deregister_slot(struct slot *slot);
 135 extern int rpaphp_get_power_status(struct slot *slot, u8 * value);
 136 extern int rpaphp_set_attention_status(struct slot *slot, u8 status);
 137
 138 #endif                          /* _PPC64PHP_H */