drivers/firewire/fw-device.h

   1 /*                                              -*- c-basic-offset: 8 -*-
   2  *
   3  * fw-device.h - Device probing and sysfs code.
   4  *
   5  * Copyright (C) 2005-2006  Kristian Hoegsberg <krh@bitplanet.net>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software Foundation,
  19  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21
  22 #ifndef __fw_device_h
  23 #define __fw_device_h
  24
  25 #include <linux/fs.h>
  26 #include <linux/cdev.h>
  27 #include <asm/atomic.h>
  28
  29 enum fw_device_state {
  30         FW_DEVICE_INITIALIZING,
  31         FW_DEVICE_RUNNING,
  32         FW_DEVICE_SHUTDOWN,
  33 };
  34
  35 struct fw_device {
  36         atomic_t state;
  37         struct fw_node *node;
  38         int node_id;
  39         int generation;
  40         struct fw_card *card;
  41         struct device device;
  42         struct cdev cdev;
  43         struct list_head client_list;
  44         __be32 *config_rom;
  45         size_t config_rom_length;
  46         int config_rom_retries;
  47         struct delayed_work work;
  48 };
  49
  50 static inline struct fw_device *
  51 fw_device(struct device *dev)
  52 {
  53         return container_of(dev, struct fw_device, device);
  54 }
  55
  56 struct fw_device *fw_device_get(struct fw_device *device);
  57 void fw_device_put(struct fw_device *device);
  58 int fw_device_enable_phys_dma(struct fw_device *device);
  59
  60 void fw_device_cdev_update(struct fw_device *device);
  61
  62 struct fw_unit {
  63         struct device device;
  64         u32 *directory;
  65 };
  66
  67 static inline struct fw_unit *
  68 fw_unit(struct device *dev)
  69 {
  70         return container_of(dev, struct fw_unit, device);
  71 }
  72
  73 #define CSR_OFFSET      0x40
  74 #define CSR_LEAF        0x80
  75 #define CSR_DIRECTORY   0xc0
  76
  77 #define CSR_DESCRIPTOR          0x01
  78 #define CSR_VENDOR              0x03
  79 #define CSR_HARDWARE_VERSION    0x04
  80 #define CSR_NODE_CAPABILITIES   0x0c
  81 #define CSR_UNIT                0x11
  82 #define CSR_SPECIFIER_ID        0x12
  83 #define CSR_VERSION             0x13
  84 #define CSR_DEPENDENT_INFO      0x14
  85 #define CSR_MODEL               0x17
  86 #define CSR_INSTANCE            0x18
  87
  88 #define SBP2_COMMAND_SET_SPECIFIER      0x38
  89 #define SBP2_COMMAND_SET                0x39
  90 #define SBP2_COMMAND_SET_REVISION       0x3b
  91 #define SBP2_FIRMWARE_REVISION          0x3c
  92
  93 struct fw_csr_iterator {
  94         u32 *p;
  95         u32 *end;
  96 };
  97
  98 void fw_csr_iterator_init(struct fw_csr_iterator *ci, u32 *p);
  99 int fw_csr_iterator_next(struct fw_csr_iterator *ci,
 100                          int *key, int *value);
 101
 102 #define FW_MATCH_VENDOR         0x0001
 103 #define FW_MATCH_MODEL          0x0002
 104 #define FW_MATCH_SPECIFIER_ID   0x0004
 105 #define FW_MATCH_VERSION        0x0008
 106
 107 struct fw_device_id {
 108         u32 match_flags;
 109         u32 vendor;
 110         u32 model;
 111         u32 specifier_id;
 112         u32 version;
 113         void *driver_data;
 114 };
 115
 116 struct fw_driver {
 117         struct device_driver driver;
 118         /* Called when the parent device sits through a bus reset. */
 119         void (*update) (struct fw_unit *unit);
 120         const struct fw_device_id *id_table;
 121 };
 122
 123 static inline struct fw_driver *
 124 fw_driver(struct device_driver *drv)
 125 {
 126         return container_of(drv, struct fw_driver, driver);
 127 }
 128
 129 extern const struct file_operations fw_device_ops;
 130
 131 #endif /* __fw_device_h */