xref: /titanic_52/usr/src/uts/sun4/sys/ebus.h (revision bdfc6d18da790deeec2e0eb09c625902defe2498)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _SYS_EBUS_H
28 #define	_SYS_EBUS_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #ifdef	__cplusplus
33 extern "C" {
34 #endif
35 
36 /*
37  * driver state type:
38  */
39 typedef enum { NEW = 0, ATTACHED, RESUMED, DETACHED,
40 		SUSPENDED, PM_SUSPENDED } driver_state_t;
41 
42 /*
43  * The i86pc specific code fragments are to support the debug of "honeynut"
44  * and "multigrain" prototypes on i86pc platform.  Most of the fragments
45  * deal with differences in the interrupt dispatching between the prototypes
46  * and the cheerio ebus.  On the prototype boards, all interrupt lines are
47  * tied together.  For this case, the nexus driver uses a common interrupt
48  * handler to poll all of its children.
49  */
50 #if defined(i86pc)
51 #define	MAX_EBUS_DEVS	6
52 
53 /*
54  * ebus device interrupt info;
55  */
56 typedef struct {
57 	char *name;
58 	uint_t inuse;
59 	uint_t (*handler)();
60 	caddr_t arg;
61 } ebus_intr_slot_t;
62 #endif
63 
64 struct ebus_intr_map {
65 	uint32_t ebus_phys_hi;
66 	uint32_t ebus_phys_low;
67 	uint32_t ebus_intr;
68 	uint32_t intr_ctlr_nodeid;
69 	uint32_t ino;
70 };
71 
72 struct ebus_intr_map_mask {
73 	uint32_t ebus_phys_hi;
74 	uint32_t ebus_phys_low;
75 	uint32_t ebus_intr;
76 };
77 
78 /*
79  * driver soft state structure:
80  */
81 typedef struct {
82 	dev_info_t *dip;
83 	driver_state_t state;
84 	pci_regspec_t *reg;
85 	int nreg;
86 
87 	union {
88 		struct ebus_pci_rangespec *rangep;
89 		struct febus_rangespec    *ferangep;
90 	} rangespec;
91 
92 	int range_cnt;
93 	kmutex_t ebus_mutex;
94 	uint_t ebus_soft_state;
95 #define	EBUS_SOFT_STATE_CLOSED		0x00
96 #define	EBUS_SOFT_STATE_OPEN		0x01
97 #define	EBUS_SOFT_STATE_OPEN_EXCL	0x02
98 
99 #if defined(i86pc)
100 	ddi_iblock_cookie_t iblock;
101 	ddi_idevice_cookie_t idevice;
102 	ebus_intr_slot_t intr_slot[MAX_EBUS_DEVS];
103 #endif
104 #if defined(__sparc)
105 	/* Interrupt support */
106 	int intr_map_size;
107 	struct ebus_intr_map *intr_map;
108 	struct ebus_intr_map_mask *intr_map_mask;
109 #endif
110 
111 	uint_t type;
112 #define	EBUS_TYPE			0x00
113 #define	FEBUS_TYPE			0x01
114 } ebus_devstate_t;
115 
116 /*
117  * definition of ebus reg spec entry:
118  */
119 typedef struct {
120 	uint32_t addr_hi;
121 	uint32_t addr_low;
122 	uint32_t size;
123 } ebus_regspec_t;
124 
125 /* EBUS range entry */
126 struct ebus_pci_rangespec {
127 	uint32_t ebus_phys_hi;			/* Child hi range address */
128 	uint32_t ebus_phys_low;			/* Child low range address */
129 	uint32_t pci_phys_hi;			/* Parent hi rng addr */
130 	uint32_t pci_phys_mid;			/* Parent mid rng addr */
131 	uint32_t pci_phys_low;			/* Parent low rng addr */
132 	uint32_t rng_size;			/* Range size */
133 };
134 
135 /* FEBUS range entry */
136 struct febus_rangespec {
137 	uint32_t febus_phys_hi;			/* Child hi range address */
138 	uint32_t febus_phys_low;		/* Child low range address */
139 	uint32_t parent_phys_hi;		/* Parent hi rng addr */
140 	uint32_t parent_phys_low;		/* Parent low rng addr */
141 	uint32_t rng_size;			/* Range size */
142 };
143 
144 /*
145  * use macros for soft state and driver properties:
146  */
147 #define	get_ebus_soft_state(i)	\
148 	((ebus_devstate_t *)ddi_get_soft_state(per_ebus_state, (i)))
149 
150 #define	alloc_ebus_soft_state(i)	\
151 	ddi_soft_state_zalloc(per_ebus_state, (i))
152 
153 #define	free_ebus_soft_state(i)	\
154 	ddi_soft_state_free(per_ebus_state, (i))
155 
156 
157 #define	getprop(dip, name, addr, intp)		\
158 		ddi_getlongprop(DDI_DEV_T_NONE, (dip), DDI_PROP_DONTPASS, \
159 				(name), (caddr_t)(addr), (intp))
160 
161 #define	IS_RIO(dip) \
162 		((ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, \
163 		"device-id", -1) == 0x1100) && \
164 		(ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, \
165 		"vendor-id", -1) == 0x108e))
166 
167 #define	EBUS_4MHZ	4000
168 
169 /*
170  * register offsets and lengths:
171  */
172 #define	TCR_OFFSET	0x710000
173 #define	TCR_LENGTH	12
174 
175 /*
176  * timing control register settings:
177  */
178 #define	TCR1		0x08101008
179 #define	TCR2		0x08100020
180 #define	TCR3		0x00000020
181 
182 #if defined(DEBUG)
183 #define	D_IDENTIFY	0x00000001
184 #define	D_ATTACH	0x00000002
185 #define	D_DETACH	0x00000004
186 #define	D_MAP		0x00000008
187 #define	D_CTLOPS	0x00000010
188 #define	D_INTR		0x00000100
189 
190 #define	DBG(flag, psp, fmt)	\
191 	ebus_debug(flag, psp, fmt, 0, 0, 0, 0, 0);
192 #define	DBG1(flag, psp, fmt, a1)	\
193 	ebus_debug(flag, psp, fmt, (uintptr_t)(a1), 0, 0, 0, 0);
194 #define	DBG2(flag, psp, fmt, a1, a2)	\
195 	ebus_debug(flag, psp, fmt, (uintptr_t)(a1), (uintptr_t)(a2), 0, 0, 0);
196 #define	DBG3(flag, psp, fmt, a1, a2, a3)	\
197 	ebus_debug(flag, psp, fmt, (uintptr_t)(a1), (uintptr_t)(a2), \
198 	    (uintptr_t)(a3), 0, 0);
199 #define	DBG4(flag, psp, fmt, a1, a2, a3, a4)	\
200 	ebus_debug(flag, psp, fmt, (uintptr_t)(a1), (uintptr_t)(a2), \
201 	    (uintptr_t)(a3), \
202 		(uintptr_t)(a4), 0);
203 #define	DBG5(flag, psp, fmt, a1, a2, a3, a4, a5)	\
204 	ebus_debug(flag, psp, fmt, (uintptr_t)(a1), (uintptr_t)(a2), \
205 	    (uintptr_t)(a3), \
206 		(uintptr_t)(a4), (uintptr_t)(a5));
207 static void
208 ebus_debug(uint_t, ebus_devstate_t *, char *, uintptr_t, uintptr_t, uintptr_t,
209     uintptr_t, uintptr_t);
210 #else
211 #define	DBG(flag, psp, fmt)
212 #define	DBG1(flag, psp, fmt, a1)
213 #define	DBG2(flag, psp, fmt, a1, a2)
214 #define	DBG3(flag, psp, fmt, a1, a2, a3)
215 #define	DBG4(flag, psp, fmt, a1, a2, a3, a4)
216 #define	DBG5(flag, psp, fmt, a1, a2, a3, a4, a5)
217 #endif
218 
219 #ifdef	__cplusplus
220 }
221 #endif
222 
223 #endif	/* _SYS_EBUS_H */
224