/* $Id: ebus.h,v 1.2 1999/09/11 23:05:55 zaitcev Exp $
   * ebus.h: PCI to Ebus pseudo driver software state.
   *
   * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) 
   *
   * Adopted for sparc by V. Roganov and G. Raiko.
   */
  
  #ifndef __SPARC_EBUS_H
  #define __SPARC_EBUS_H
  
  #ifndef _LINUX_IOPORT_H
  #include <linux/ioport.h>
  #endif
  #include <asm/oplib.h>

  #include <asm/prom.h>

  #include <asm/of_device.h>

  
  struct linux_ebus_child {
  	struct linux_ebus_child		*next;
  	struct linux_ebus_device	*parent;
  	struct linux_ebus		*bus;

  	struct device_node		*prom_node;

  	struct resource			 resource[PROMREG_MAX];
  	int				 num_addrs;
  	unsigned int			 irqs[PROMINTR_MAX];
  	int				 num_irqs;
  };
  
  struct linux_ebus_device {

  	struct of_device		ofdev;

  	struct linux_ebus_device	*next;
  	struct linux_ebus_child		*children;
  	struct linux_ebus		*bus;

  	struct device_node		*prom_node;

  	struct resource			 resource[PROMREG_MAX];
  	int				 num_addrs;
  	unsigned int			 irqs[PROMINTR_MAX];
  	int				 num_irqs;
  };

  #define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev)

  
  struct linux_ebus {

  	struct of_device		ofdev;

  	struct linux_ebus		*next;
  	struct linux_ebus_device	*devices;
  	struct linux_pbm_info		*parent;
  	struct pci_dev			*self;

  	struct device_node		*prom_node;

  };

  #define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev)

  
  struct linux_ebus_dma {
  	unsigned int dcsr;
  	unsigned int dacr;
  	unsigned int dbcr;
  };
  
  #define EBUS_DCSR_INT_PEND	0x00000001
  #define EBUS_DCSR_ERR_PEND	0x00000002
  #define EBUS_DCSR_DRAIN		0x00000004
  #define EBUS_DCSR_INT_EN	0x00000010
  #define EBUS_DCSR_RESET		0x00000080
  #define EBUS_DCSR_WRITE		0x00000100
  #define EBUS_DCSR_EN_DMA	0x00000200
  #define EBUS_DCSR_CYC_PEND	0x00000400
  #define EBUS_DCSR_DIAG_RD_DONE	0x00000800
  #define EBUS_DCSR_DIAG_WR_DONE	0x00001000
  #define EBUS_DCSR_EN_CNT	0x00002000
  #define EBUS_DCSR_TC		0x00004000
  #define EBUS_DCSR_DIS_CSR_DRN	0x00010000
  #define EBUS_DCSR_BURST_SZ_MASK	0x000c0000
  #define EBUS_DCSR_BURST_SZ_1	0x00080000
  #define EBUS_DCSR_BURST_SZ_4	0x00000000
  #define EBUS_DCSR_BURST_SZ_8	0x00040000
  #define EBUS_DCSR_BURST_SZ_16	0x000c0000
  #define EBUS_DCSR_DIAG_EN	0x00100000
  #define EBUS_DCSR_DIS_ERR_PEND	0x00400000
  #define EBUS_DCSR_TCI_DIS	0x00800000
  #define EBUS_DCSR_EN_NEXT	0x01000000
  #define EBUS_DCSR_DMA_ON	0x02000000
  #define EBUS_DCSR_A_LOADED	0x04000000
  #define EBUS_DCSR_NA_LOADED	0x08000000
  #define EBUS_DCSR_DEV_ID_MASK	0xf0000000
  
  extern struct linux_ebus		*ebus_chain;
  
  extern void ebus_init(void);
  
  #define for_each_ebus(bus)						\
          for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
  
  #define for_each_ebusdev(dev, bus)					\
          for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
  
  #define for_each_edevchild(dev, child)					\
          for((child) = (dev)->children; (child); (child) = (child)->next)
  
  #endif /* !(__SPARC_EBUS_H) */