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 int rpaphp_enable_slot(struct slot *slot); 90 int rpaphp_get_sensor_state(struct slot *slot, int *state); 91 92 /* rpaphp_core.c */ 93 int rpaphp_add_slot(struct device_node *dn); 94 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 void dealloc_slot_struct(struct slot *slot); 99 struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain); 100 int rpaphp_register_slot(struct slot *slot); 101 int rpaphp_deregister_slot(struct slot *slot); 102 103 #endif /* _PPC64PHP_H */ 104