release/src-rt-6.x/linux/linux-2.6/drivers/firewire/fw-device.h

   1 /*
   2  * Copyright (C) 2005-2006  Kristian Hoegsberg <krh@bitplanet.net>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software Foundation,
  16  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  */
  18
  19 #ifndef __fw_device_h
  20 #define __fw_device_h
  21
  22 #include <linux/fs.h>
  23 #include <linux/cdev.h>
  24 #include <asm/atomic.h>
  25
  26 enum fw_device_state {
  27         FW_DEVICE_INITIALIZING,
  28         FW_DEVICE_RUNNING,
  29         FW_DEVICE_SHUTDOWN,
  30 };
  31
  32 struct fw_attribute_group {
  33         struct attribute_group *groups[2];
  34         struct attribute_group group;
  35         struct attribute *attrs[11];
  36 };
  37
  38 struct fw_device {
  39         atomic_t state;
  40         struct fw_node *node;
  41         int node_id;
  42         int generation;
  43         struct fw_card *card;
  44         struct device device;
  45         struct list_head link;
  46         struct list_head client_list;
  47         u32 *config_rom;
  48         size_t config_rom_length;
  49         int config_rom_retries;
  50         struct delayed_work work;
  51         struct fw_attribute_group attribute_group;
  52 };
  53
  54 static inline struct fw_device *
  55 fw_device(struct device *dev)
  56 {
  57         return container_of(dev, struct fw_device, device);
  58 }
  59
  60 static inline int
  61 fw_device_is_shutdown(struct fw_device *device)
  62 {
  63         return atomic_read(&device->state) == FW_DEVICE_SHUTDOWN;
  64 }
  65
  66 struct fw_device *fw_device_get(struct fw_device *device);
  67 void fw_device_put(struct fw_device *device);
  68 int fw_device_enable_phys_dma(struct fw_device *device);
  69
  70 void fw_device_cdev_update(struct fw_device *device);
  71 void fw_device_cdev_remove(struct fw_device *device);
  72
  73 struct fw_device *fw_device_from_devt(dev_t devt);
  74 extern int fw_cdev_major;
  75
  76 struct fw_unit {
  77         struct device device;
  78         u32 *directory;
  79         struct fw_attribute_group attribute_group;
  80 };
  81
  82 static inline struct fw_unit *
  83 fw_unit(struct device *dev)
  84 {
  85         return container_of(dev, struct fw_unit, device);
  86 }
  87
  88 #define CSR_OFFSET      0x40
  89 #define CSR_LEAF        0x80
  90 #define CSR_DIRECTORY   0xc0
  91
  92 #define CSR_DESCRIPTOR          0x01
  93 #define CSR_VENDOR              0x03
  94 #define CSR_HARDWARE_VERSION    0x04
  95 #define CSR_NODE_CAPABILITIES   0x0c
  96 #define CSR_UNIT                0x11
  97 #define CSR_SPECIFIER_ID        0x12
  98 #define CSR_VERSION             0x13
  99 #define CSR_DEPENDENT_INFO      0x14
 100 #define CSR_MODEL               0x17
 101 #define CSR_INSTANCE            0x18
 102 #define CSR_DIRECTORY_ID        0x20
 103
 104 #define SBP2_COMMAND_SET_SPECIFIER      0x38
 105 #define SBP2_COMMAND_SET                0x39
 106 #define SBP2_COMMAND_SET_REVISION       0x3b
 107 #define SBP2_FIRMWARE_REVISION          0x3c
 108
 109 struct fw_csr_iterator {
 110         u32 *p;
 111         u32 *end;
 112 };
 113
 114 void fw_csr_iterator_init(struct fw_csr_iterator *ci, u32 *p);
 115 int fw_csr_iterator_next(struct fw_csr_iterator *ci,
 116                          int *key, int *value);
 117
 118 #define FW_MATCH_VENDOR         0x0001
 119 #define FW_MATCH_MODEL          0x0002
 120 #define FW_MATCH_SPECIFIER_ID   0x0004
 121 #define FW_MATCH_VERSION        0x0008
 122
 123 struct fw_device_id {
 124         u32 match_flags;
 125         u32 vendor;
 126         u32 model;
 127         u32 specifier_id;
 128         u32 version;
 129         void *driver_data;
 130 };
 131
 132 struct fw_driver {
 133         struct device_driver driver;
 134         /* Called when the parent device sits through a bus reset. */
 135         void (*update) (struct fw_unit *unit);
 136         const struct fw_device_id *id_table;
 137 };
 138
 139 static inline struct fw_driver *
 140 fw_driver(struct device_driver *drv)
 141 {
 142         return container_of(drv, struct fw_driver, driver);
 143 }
 144
 145 extern const struct file_operations fw_device_ops;
 146
 147 #endif /* __fw_device_h */