drivers/pci/hotplug/cpci_hotplug.h

   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
  34 /* PICMG 2.1 R2.0 HS CSR bits: */
  35 #define HS_CSR_INS      0x0080
  36 #define HS_CSR_EXT      0x0040
  37 #define HS_CSR_PI       0x0030
  38 #define HS_CSR_LOO      0x0008
  39 #define HS_CSR_PIE      0x0004
  40 #define HS_CSR_EIM      0x0002
  41 #define HS_CSR_DHA      0x0001
  42
  43 struct slot {
  44         u8 number;
  45         unsigned int devfn;
  46         struct pci_bus *bus;
  47         struct pci_dev *dev;
  48         unsigned int extracting;
  49         struct hotplug_slot *hotplug_slot;
  50         struct list_head slot_list;
  51 };
  52
  53 struct cpci_hp_controller_ops {
  54         int (*query_enum) (void);
  55         int (*enable_irq) (void);
  56         int (*disable_irq) (void);
  57         int (*check_irq) (void *dev_id);
  58         int (*hardware_test) (struct slot* slot, u32 value);
  59         u8  (*get_power) (struct slot* slot);
  60         int (*set_power) (struct slot* slot, int value);
  61 };
  62
  63 struct cpci_hp_controller {
  64         unsigned int irq;
  65         unsigned long irq_flags;
  66         char *devname;
  67         void *dev_id;
  68         char *name;
  69         struct cpci_hp_controller_ops *ops;
  70 };
  71
  72 extern int cpci_hp_register_controller(struct cpci_hp_controller *controller);
  73 extern int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
  74 extern int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
  75 extern int cpci_hp_unregister_bus(struct pci_bus *bus);
  76 extern int cpci_hp_start(void);
  77 extern int cpci_hp_stop(void);
  78
  79 /*
  80  * Internal function prototypes, these functions should not be used by
  81  * board/chassis drivers.
  82  */
  83 extern u8 cpci_get_attention_status(struct slot *slot);
  84 extern u8 cpci_get_latch_status(struct slot *slot);
  85 extern u8 cpci_get_adapter_status(struct slot *slot);
  86 extern u16 cpci_get_hs_csr(struct slot * slot);
  87 extern int cpci_set_attention_status(struct slot *slot, int status);
  88 extern int cpci_check_and_clear_ins(struct slot * slot);
  89 extern int cpci_check_ext(struct slot * slot);
  90 extern int cpci_clear_ext(struct slot * slot);
  91 extern int cpci_led_on(struct slot * slot);
  92 extern int cpci_led_off(struct slot * slot);
  93 extern int cpci_configure_slot(struct slot *slot);
  94 extern int cpci_unconfigure_slot(struct slot *slot);
  95
  96 #endif  /* _CPCI_HOTPLUG_H */