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 <linux/pci_hotplug.h>
  32
  33 #define DR_INDICATOR 9002
  34 #define DR_ENTITY_SENSE 9003
  35
  36 #define POWER_ON        100
  37 #define POWER_OFF       0
  38
  39 #define LED_OFF         0
  40 #define LED_ON          1       /* continuous on */
  41 #define LED_ID          2       /* slow blinking */
  42 #define LED_ACTION      3       /* fast blinking */
  43
  44 /* Sensor values from rtas_get-sensor */
  45 #define EMPTY           0       /* No card in slot */
  46 #define PRESENT         1       /* Card in slot */
  47
  48 #define MY_NAME "rpaphp"
  49 extern bool rpaphp_debug;
  50 #define dbg(format, arg...)                                     \
  51         do {                                                    \
  52                 if (rpaphp_debug)                                       \
  53                         printk(KERN_DEBUG "%s: " format,        \
  54                                 MY_NAME , ## arg);              \
  55         } while (0)
  56 #define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
  57 #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
  58 #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
  59
  60 /* slot states */
  61
  62 #define NOT_VALID       3
  63 #define NOT_CONFIGURED  2
  64 #define CONFIGURED      1
  65 #define EMPTY           0
  66
  67 /*
  68  * struct slot - slot information for each *physical* slot
  69  */
  70 struct slot {
  71         struct list_head rpaphp_slot_list;
  72         int state;
  73         u32 index;
  74         u32 type;
  75         u32 power_domain;
  76         char *name;
  77         struct device_node *dn;
  78         struct pci_bus *bus;
  79         struct list_head *pci_devs;
  80         struct hotplug_slot *hotplug_slot;
  81 };
  82
  83 extern struct hotplug_slot_ops rpaphp_hotplug_slot_ops;
  84 extern struct list_head rpaphp_slot_head;
  85
  86 /* function prototypes */
  87
  88 /* rpaphp_pci.c */
  89 extern int rpaphp_enable_slot(struct slot *slot);
  90 extern int rpaphp_get_sensor_state(struct slot *slot, int *state);
  91
  92 /* rpaphp_core.c */
  93 extern int rpaphp_add_slot(struct device_node *dn);
  94 extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
  95                 char **drc_name, char **drc_type, int *drc_power_domain);
  96
  97 /* rpaphp_slot.c */
  98 extern void dealloc_slot_struct(struct slot *slot);
  99 extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
 100 extern int rpaphp_register_slot(struct slot *slot);
 101 extern int rpaphp_deregister_slot(struct slot *slot);
 102
 103 #endif                          /* _PPC64PHP_H */