1 /* 2 * CompactPCI Hot Plug Core Functions 3 * 4 * Copyright (C) 2002 SOMA Networks, Inc. 5 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) 6 * Copyright (C) 2001 IBM Corp. 7 * 8 * All rights reserved. 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or (at 13 * your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 18 * NON INFRINGEMENT. See the GNU General Public License for more 19 * details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 24 * 25 * Send feedback to <scottm@somanetworks.com> 26 */ 27 28 #ifndef _CPCI_HOTPLUG_H 29 #define _CPCI_HOTPLUG_H 30 31 #include <linux/types.h> 32 #include <linux/pci.h> 33 #include <linux/pci_hotplug.h> 34 35 /* PICMG 2.1 R2.0 HS CSR bits: */ 36 #define HS_CSR_INS 0x0080 37 #define HS_CSR_EXT 0x0040 38 #define HS_CSR_PI 0x0030 39 #define HS_CSR_LOO 0x0008 40 #define HS_CSR_PIE 0x0004 41 #define HS_CSR_EIM 0x0002 42 #define HS_CSR_DHA 0x0001 43 44 struct slot { 45 u8 number; 46 unsigned int devfn; 47 struct pci_bus *bus; 48 struct pci_dev *dev; 49 unsigned int extracting; 50 struct hotplug_slot *hotplug_slot; 51 struct list_head slot_list; 52 }; 53 54 struct cpci_hp_controller_ops { 55 int (*query_enum) (void); 56 int (*enable_irq) (void); 57 int (*disable_irq) (void); 58 int (*check_irq) (void *dev_id); 59 int (*hardware_test) (struct slot *slot, u32 value); 60 u8 (*get_power) (struct slot *slot); 61 int (*set_power) (struct slot *slot, int value); 62 }; 63 64 struct cpci_hp_controller { 65 unsigned int irq; 66 unsigned long irq_flags; 67 char *devname; 68 void *dev_id; 69 char *name; 70 struct cpci_hp_controller_ops *ops; 71 }; 72 73 static inline const char *slot_name(struct slot *slot) 74 { 75 return hotplug_slot_name(slot->hotplug_slot); 76 } 77 78 int cpci_hp_register_controller(struct cpci_hp_controller *controller); 79 int cpci_hp_unregister_controller(struct cpci_hp_controller *controller); 80 int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last); 81 int cpci_hp_unregister_bus(struct pci_bus *bus); 82 int cpci_hp_start(void); 83 int cpci_hp_stop(void); 84 85 /* 86 * Internal function prototypes, these functions should not be used by 87 * board/chassis drivers. 88 */ 89 u8 cpci_get_attention_status(struct slot *slot); 90 u8 cpci_get_latch_status(struct slot *slot); 91 u8 cpci_get_adapter_status(struct slot *slot); 92 u16 cpci_get_hs_csr(struct slot *slot); 93 int cpci_set_attention_status(struct slot *slot, int status); 94 int cpci_check_and_clear_ins(struct slot *slot); 95 int cpci_check_ext(struct slot *slot); 96 int cpci_clear_ext(struct slot *slot); 97 int cpci_led_on(struct slot *slot); 98 int cpci_led_off(struct slot *slot); 99 int cpci_configure_slot(struct slot *slot); 100 int cpci_unconfigure_slot(struct slot *slot); 101 102 #ifdef CONFIG_HOTPLUG_PCI_CPCI 103 int cpci_hotplug_init(int debug); 104 void cpci_hotplug_exit(void); 105 #else 106 static inline int cpci_hotplug_init(int debug) { return 0; } 107 static inline void cpci_hotplug_exit(void) { } 108 #endif 109 110 #endif /* _CPCI_HOTPLUG_H */ 111