1/* $Id: ebus.h,v 1.1.1.1 2008/10/15 03:29:18 james26_jang Exp $
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/pbm.h>
12#include <asm/oplib.h>
13
14struct linux_ebus_child {
15	struct linux_ebus_child		*next;
16	struct linux_ebus_device	*parent;
17	struct linux_ebus		*bus;
18	int				 prom_node;
19	char				 prom_name[64];
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 linux_ebus_device	*next;
28	struct linux_ebus_child		*children;
29	struct linux_ebus		*bus;
30	int				 prom_node;
31	char				 prom_name[64];
32	struct resource			 resource[PROMREG_MAX];
33	int				 num_addrs;
34	unsigned int			 irqs[PROMINTR_MAX];
35	int				 num_irqs;
36};
37
38struct linux_ebus {
39	struct linux_ebus		*next;
40	struct linux_ebus_device	*devices;
41	struct pci_pbm_info		*parent;
42	struct pci_dev			*self;
43	int				 index;
44	int				 is_rio;
45	int				 prom_node;
46	char				 prom_name[64];
47	struct linux_prom_ebus_ranges	 ebus_ranges[PROMREG_MAX];
48	int				 num_ebus_ranges;
49	struct linux_prom_ebus_intmap	 ebus_intmap[PROMREG_MAX];
50	int				 num_ebus_intmap;
51	struct linux_prom_ebus_intmask	 ebus_intmask;
52};
53
54struct linux_ebus_dma {
55	unsigned int dcsr;
56	unsigned int dacr;
57	unsigned int dbcr;
58};
59
60#define EBUS_DCSR_INT_PEND	0x00000001
61#define EBUS_DCSR_ERR_PEND	0x00000002
62#define EBUS_DCSR_DRAIN		0x00000004
63#define EBUS_DCSR_INT_EN	0x00000010
64#define EBUS_DCSR_RESET		0x00000080
65#define EBUS_DCSR_WRITE		0x00000100
66#define EBUS_DCSR_EN_DMA	0x00000200
67#define EBUS_DCSR_CYC_PEND	0x00000400
68#define EBUS_DCSR_DIAG_RD_DONE	0x00000800
69#define EBUS_DCSR_DIAG_WR_DONE	0x00001000
70#define EBUS_DCSR_EN_CNT	0x00002000
71#define EBUS_DCSR_TC		0x00004000
72#define EBUS_DCSR_DIS_CSR_DRN	0x00010000
73#define EBUS_DCSR_BURST_SZ_MASK	0x000c0000
74#define EBUS_DCSR_BURST_SZ_1	0x00080000
75#define EBUS_DCSR_BURST_SZ_4	0x00000000
76#define EBUS_DCSR_BURST_SZ_8	0x00040000
77#define EBUS_DCSR_BURST_SZ_16	0x000c0000
78#define EBUS_DCSR_DIAG_EN	0x00100000
79#define EBUS_DCSR_DIS_ERR_PEND	0x00400000
80#define EBUS_DCSR_TCI_DIS	0x00800000
81#define EBUS_DCSR_EN_NEXT	0x01000000
82#define EBUS_DCSR_DMA_ON	0x02000000
83#define EBUS_DCSR_A_LOADED	0x04000000
84#define EBUS_DCSR_NA_LOADED	0x08000000
85#define EBUS_DCSR_DEV_ID_MASK	0xf0000000
86
87extern struct linux_ebus		*ebus_chain;
88
89extern void ebus_init(void);
90
91#define for_each_ebus(bus)						\
92        for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
93
94#define for_each_ebusdev(dev, bus)					\
95        for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
96
97#define for_each_edevchild(dev, child)					\
98        for((child) = (dev)->children; (child); (child) = (child)->next)
99
100#endif /* !(__SPARC64_EBUS_H) */
101