Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1/*
2 * ebus.h: PCI to Ebus pseudo driver software state.
3 *
4 * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
5 * Copyright (C) 1999 David S. Miller (davem@redhat.com)
6 */
7
8#ifndef __SPARC64_EBUS_H
9#define __SPARC64_EBUS_H
10
11#include <asm/oplib.h>
12#include <asm/prom.h>
13#include <asm/of_device.h>
14
15struct linux_ebus_child {
16 struct linux_ebus_child *next;
17 struct linux_ebus_device *parent;
18 struct linux_ebus *bus;
19 struct device_node *prom_node;
20 struct resource resource[PROMREG_MAX];
21 int num_addrs;
22 unsigned int irqs[PROMINTR_MAX];
23 int num_irqs;
24};
25
26struct linux_ebus_device {
27 struct of_device ofdev;
28 struct linux_ebus_device *next;
29 struct linux_ebus_child *children;
30 struct linux_ebus *bus;
31 struct device_node *prom_node;
32 struct resource resource[PROMREG_MAX];
33 int num_addrs;
34 unsigned int irqs[PROMINTR_MAX];
35 int num_irqs;
36};
37#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev)
38
39struct linux_ebus {
40 struct of_device ofdev;
41 struct linux_ebus *next;
42 struct linux_ebus_device *devices;
43 struct pci_dev *self;
44 int index;
45 int is_rio;
46 struct device_node *prom_node;
47};
48#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev)
49
50struct ebus_dma_info {
51 spinlock_t lock;
52 void __iomem *regs;
53
54 unsigned int flags;
55#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001
56#define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002
57
58 /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
59 * set.
60 */
61 void (*callback)(struct ebus_dma_info *p, int event, void *cookie);
62 void *client_cookie;
63 unsigned int irq;
64#define EBUS_DMA_EVENT_ERROR 1
65#define EBUS_DMA_EVENT_DMA 2
66#define EBUS_DMA_EVENT_DEVICE 4
67
68 unsigned char name[64];
69};
70
71extern int ebus_dma_register(struct ebus_dma_info *p);
72extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
73extern void ebus_dma_unregister(struct ebus_dma_info *p);
74extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
75 size_t len);
76extern void ebus_dma_prepare(struct ebus_dma_info *p, int write);
77extern unsigned int ebus_dma_residue(struct ebus_dma_info *p);
78extern unsigned int ebus_dma_addr(struct ebus_dma_info *p);
79extern void ebus_dma_enable(struct ebus_dma_info *p, int on);
80
81extern struct linux_ebus *ebus_chain;
82
83extern void ebus_init(void);
84
85#define for_each_ebus(bus) \
86 for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
87
88#define for_each_ebusdev(dev, bus) \
89 for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
90
91#define for_each_edevchild(dev, child) \
92 for((child) = (dev)->children; (child); (child) = (child)->next)
93
94#endif /* !(__SPARC64_EBUS_H) */