1 /* $Id: ebus.h,v 1.10 2001/03/14 05:00:55 davem Exp $
2 * ebus.h: PCI to Ebus pseudo driver software state.
4 * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
5 * Copyright (C) 1999 David S. Miller (davem@redhat.com)
8 #ifndef __SPARC64_EBUS_H
9 #define __SPARC64_EBUS_H
12 #include <asm/oplib.h>
14 struct linux_ebus_child {
15 struct linux_ebus_child *next;
16 struct linux_ebus_device *parent;
17 struct linux_ebus *bus;
20 struct resource resource[PROMREG_MAX];
22 unsigned int irqs[PROMINTR_MAX];
26 struct linux_ebus_device {
27 struct linux_ebus_device *next;
28 struct linux_ebus_child *children;
29 struct linux_ebus *bus;
32 struct resource resource[PROMREG_MAX];
34 unsigned int irqs[PROMINTR_MAX];
39 struct linux_ebus *next;
40 struct linux_ebus_device *devices;
41 struct pci_pbm_info *parent;
47 struct linux_prom_ebus_ranges ebus_ranges[PROMREG_MAX];
49 struct linux_prom_ebus_intmap ebus_intmap[PROMREG_MAX];
51 struct linux_prom_ebus_intmask ebus_intmask;
54 struct ebus_dma_info {
59 #define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001
60 #define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002
62 /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
65 void (*callback)(struct ebus_dma_info *p, int event, void *cookie);
68 #define EBUS_DMA_EVENT_ERROR 1
69 #define EBUS_DMA_EVENT_DMA 2
70 #define EBUS_DMA_EVENT_DEVICE 4
72 unsigned char name[64];
75 extern int ebus_dma_register(struct ebus_dma_info *p);
76 extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
77 extern void ebus_dma_unregister(struct ebus_dma_info *p);
78 extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
80 extern void ebus_dma_prepare(struct ebus_dma_info *p, int write);
81 extern unsigned int ebus_dma_residue(struct ebus_dma_info *p);
82 extern void ebus_dma_enable(struct ebus_dma_info *p, int on);
84 extern struct linux_ebus *ebus_chain;
86 extern void ebus_init(void);
88 #define for_each_ebus(bus) \
89 for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
91 #define for_each_ebusdev(dev, bus) \
92 for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
94 #define for_each_edevchild(dev, child) \
95 for((child) = (dev)->children; (child); (child) = (child)->next)
97 #endif /* !(__SPARC64_EBUS_H) */