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fw-device.h

/*
 * Copyright (C) 2005-2006  Kristian Hoegsberg <krh@bitplanet.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef __fw_device_h
#define __fw_device_h

#include <linux/fs.h>
#include <linux/cdev.h>
#include <asm/atomic.h>

enum fw_device_state {
      FW_DEVICE_INITIALIZING,
      FW_DEVICE_RUNNING,
      FW_DEVICE_SHUTDOWN,
};

struct fw_attribute_group {
      struct attribute_group *groups[2];
      struct attribute_group group;
      struct attribute *attrs[11];
};

struct fw_device {
      atomic_t state;
      struct fw_node *node;
      int node_id;
      int generation;
      unsigned max_speed;
      struct fw_card *card;
      struct device device;
      struct list_head link;
      struct list_head client_list;
      u32 *config_rom;
      size_t config_rom_length;
      int config_rom_retries;
      struct delayed_work work;
      struct fw_attribute_group attribute_group;
};

static inline struct fw_device *
fw_device(struct device *dev)
{
      return container_of(dev, struct fw_device, device);
}

static inline int
fw_device_is_shutdown(struct fw_device *device)
{
      return atomic_read(&device->state) == FW_DEVICE_SHUTDOWN;
}

struct fw_device *fw_device_get(struct fw_device *device);
void fw_device_put(struct fw_device *device);
int fw_device_enable_phys_dma(struct fw_device *device);

void fw_device_cdev_update(struct fw_device *device);
void fw_device_cdev_remove(struct fw_device *device);

struct fw_device *fw_device_from_devt(dev_t devt);
extern int fw_cdev_major;

struct fw_unit {
      struct device device;
      u32 *directory;
      struct fw_attribute_group attribute_group;
};

static inline struct fw_unit *
fw_unit(struct device *dev)
{
      return container_of(dev, struct fw_unit, device);
}

#define CSR_OFFSET      0x40
#define CSR_LEAF  0x80
#define CSR_DIRECTORY   0xc0

#define CSR_DESCRIPTOR        0x01
#define CSR_VENDOR            0x03
#define CSR_HARDWARE_VERSION  0x04
#define CSR_NODE_CAPABILITIES 0x0c
#define CSR_UNIT        0x11
#define CSR_SPECIFIER_ID      0x12
#define CSR_VERSION           0x13
#define CSR_DEPENDENT_INFO    0x14
#define CSR_MODEL       0x17
#define CSR_INSTANCE          0x18
#define CSR_DIRECTORY_ID      0x20

struct fw_csr_iterator {
      u32 *p;
      u32 *end;
};

void fw_csr_iterator_init(struct fw_csr_iterator *ci, u32 *p);
int fw_csr_iterator_next(struct fw_csr_iterator *ci,
                   int *key, int *value);

#define FW_MATCH_VENDOR       0x0001
#define FW_MATCH_MODEL        0x0002
#define FW_MATCH_SPECIFIER_ID 0x0004
#define FW_MATCH_VERSION      0x0008

struct fw_device_id {
      u32 match_flags;
      u32 vendor;
      u32 model;
      u32 specifier_id;
      u32 version;
      void *driver_data;
};

struct fw_driver {
      struct device_driver driver;
      /* Called when the parent device sits through a bus reset. */
      void (*update) (struct fw_unit *unit);
      const struct fw_device_id *id_table;
};

static inline struct fw_driver *
fw_driver(struct device_driver *drv)
{
      return container_of(drv, struct fw_driver, driver);
}

extern const struct file_operations fw_device_ops;

#endif /* __fw_device_h */

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