include/asm-powerpc/ibmebus.h

   1 /*
   2  * IBM PowerPC eBus Infrastructure Support.
   3  *
   4  * Copyright (c) 2005 IBM Corporation
   5  *  Heiko J Schick <schickhj@de.ibm.com>
   6  *
   7  * All rights reserved.
   8  *
   9  * This source code is distributed under a dual license of GPL v2.0 and OpenIB
  10  * BSD.
  11  *
  12  * OpenIB BSD License
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions are met:
  16  *
  17  * Redistributions of source code must retain the above copyright notice, this
  18  * list of conditions and the following disclaimer.
  19  *
  20  * Redistributions in binary form must reproduce the above copyright notice,
  21  * this list of conditions and the following disclaimer in the documentation
  22  * and/or other materials
  23  * provided with the distribution.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  26  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  29  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  32  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  33  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 #ifndef _ASM_EBUS_H
  39 #define _ASM_EBUS_H
  40 #ifdef __KERNEL__
  41
  42 #include <linux/device.h>
  43 #include <linux/interrupt.h>
  44 #include <linux/mod_devicetable.h>
  45 #include <asm/of_device.h>
  46
  47 extern struct dma_mapping_ops ibmebus_dma_ops;
  48 extern struct bus_type ibmebus_bus_type;
  49
  50 struct ibmebus_dev {
  51         const char *name;
  52         struct of_device ofdev;
  53 };
  54
  55 struct ibmebus_driver {
  56         char *name;
  57         struct of_device_id *id_table;
  58         int (*probe) (struct ibmebus_dev *dev, const struct of_device_id *id);
  59         int (*remove) (struct ibmebus_dev *dev);
  60         struct device_driver driver;
  61 };
  62
  63 int ibmebus_register_driver(struct ibmebus_driver *drv);
  64 void ibmebus_unregister_driver(struct ibmebus_driver *drv);
  65
  66 int ibmebus_request_irq(struct ibmebus_dev *dev,
  67                         u32 ist,
  68                         irqreturn_t (*handler)(int, void*, struct pt_regs *),
  69                         unsigned long irq_flags, const char * devname,
  70                         void *dev_id);
  71 void ibmebus_free_irq(struct ibmebus_dev *dev, u32 ist, void *dev_id);
  72
  73 static inline struct ibmebus_driver *to_ibmebus_driver(struct device_driver *drv)
  74 {
  75         return container_of(drv, struct ibmebus_driver, driver);
  76 }
  77
  78 static inline struct ibmebus_dev *to_ibmebus_dev(struct device *dev)
  79 {
  80         return container_of(dev, struct ibmebus_dev, ofdev.dev);
  81 }
  82
  83
  84 #endif /* __KERNEL__ */
  85 #endif /* _ASM_IBMEBUS_H */