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gerrit-public.fairphone.software / kernel / msm-4.9 / c91ebe496120e05301465fff31094bfecf798e9f / . / arch / sparc / include / asm / ebus_64.h
blob: 14c6a111f60c154dddc38079d46529fd9470c05d [file] [log] [blame]
Sam Ravnborgf5e706a2008-07-17 21:55:51 -0700[diff] [blame]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
Stephen Rothwell764f2572008-08-07 15:33:36 -0700[diff] [blame]11#include <linux/of_device.h>
12
Sam Ravnborgf5e706a2008-07-17 21:55:51 -0700[diff] [blame]13#include <asm/oplib.h>
14#include <asm/prom.h>
Sam Ravnborgf5e706a2008-07-17 21:55:51 -0700[diff] [blame]15
16struct linux_ebus_child {
17 struct linux_ebus_child *next;
18 struct linux_ebus_device *parent;
19 struct linux_ebus *bus;
20 struct device_node *prom_node;
21 struct resource resource[PROMREG_MAX];
22 int num_addrs;
23 unsigned int irqs[PROMINTR_MAX];
24 int num_irqs;
25};
26
27struct linux_ebus_device {
28 struct of_device ofdev;
29 struct linux_ebus_device *next;
30 struct linux_ebus_child *children;
31 struct linux_ebus *bus;
32 struct device_node *prom_node;
33 struct resource resource[PROMREG_MAX];
34 int num_addrs;
35 unsigned int irqs[PROMINTR_MAX];
36 int num_irqs;
37};
38#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev)
39
40struct linux_ebus {
41 struct of_device ofdev;
42 struct linux_ebus *next;
43 struct linux_ebus_device *devices;
44 struct pci_dev *self;
45 int index;
46 int is_rio;
47 struct device_node *prom_node;
48};
49#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev)
50
51struct ebus_dma_info {
52 spinlock_t lock;
53 void __iomem *regs;
54
55 unsigned int flags;
56#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001
57#define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002
58
59 /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
60 * set.
61 */
62 void (*callback)(struct ebus_dma_info *p, int event, void *cookie);
63 void *client_cookie;
64 unsigned int irq;
65#define EBUS_DMA_EVENT_ERROR 1
66#define EBUS_DMA_EVENT_DMA 2
67#define EBUS_DMA_EVENT_DEVICE 4
68
69 unsigned char name[64];
70};
71
72extern int ebus_dma_register(struct ebus_dma_info *p);
73extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
74extern void ebus_dma_unregister(struct ebus_dma_info *p);
75extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
76 size_t len);
77extern void ebus_dma_prepare(struct ebus_dma_info *p, int write);
78extern unsigned int ebus_dma_residue(struct ebus_dma_info *p);
79extern unsigned int ebus_dma_addr(struct ebus_dma_info *p);
80extern void ebus_dma_enable(struct ebus_dma_info *p, int on);
81
82extern struct linux_ebus *ebus_chain;
83
84extern void ebus_init(void);
85
86#define for_each_ebus(bus) \
87 for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
88
89#define for_each_ebusdev(dev, bus) \
90 for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
91
92#define for_each_edevchild(dev, child) \
93 for((child) = (dev)->children; (child); (child) = (child)->next)
94
95#endif /* !(__SPARC64_EBUS_H) */