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 */ 139