diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/zorro.h |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/zorro.h')
-rw-r--r-- | include/linux/zorro.h | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/include/linux/zorro.h b/include/linux/zorro.h new file mode 100644 index 00000000000..ba5b72768bb --- /dev/null +++ b/include/linux/zorro.h | |||
@@ -0,0 +1,329 @@ | |||
1 | /* | ||
2 | * linux/zorro.h -- Amiga AutoConfig (Zorro) Bus Definitions | ||
3 | * | ||
4 | * Copyright (C) 1995--2003 Geert Uytterhoeven | ||
5 | * | ||
6 | * This file is subject to the terms and conditions of the GNU General Public | ||
7 | * License. See the file COPYING in the main directory of this archive | ||
8 | * for more details. | ||
9 | */ | ||
10 | |||
11 | #ifndef _LINUX_ZORRO_H | ||
12 | #define _LINUX_ZORRO_H | ||
13 | |||
14 | #ifndef __ASSEMBLY__ | ||
15 | |||
16 | #include <linux/device.h> | ||
17 | |||
18 | |||
19 | /* | ||
20 | * Each Zorro board has a 32-bit ID of the form | ||
21 | * | ||
22 | * mmmmmmmmmmmmmmmmppppppppeeeeeeee | ||
23 | * | ||
24 | * with | ||
25 | * | ||
26 | * mmmmmmmmmmmmmmmm 16-bit Manufacturer ID (assigned by CBM (sigh)) | ||
27 | * pppppppp 8-bit Product ID (assigned by manufacturer) | ||
28 | * eeeeeeee 8-bit Extended Product ID (currently only used | ||
29 | * for some GVP boards) | ||
30 | */ | ||
31 | |||
32 | |||
33 | #define ZORRO_MANUF(id) ((id) >> 16) | ||
34 | #define ZORRO_PROD(id) (((id) >> 8) & 0xff) | ||
35 | #define ZORRO_EPC(id) ((id) & 0xff) | ||
36 | |||
37 | #define ZORRO_ID(manuf, prod, epc) \ | ||
38 | ((ZORRO_MANUF_##manuf << 16) | ((prod) << 8) | (epc)) | ||
39 | |||
40 | typedef __u32 zorro_id; | ||
41 | |||
42 | |||
43 | #define ZORRO_WILDCARD (0xffffffff) /* not official */ | ||
44 | |||
45 | /* Include the ID list */ | ||
46 | #include <linux/zorro_ids.h> | ||
47 | |||
48 | |||
49 | /* | ||
50 | * GVP identifies most of its products through the 'extended product code' | ||
51 | * (epc). The epc has to be ANDed with the GVP_PRODMASK before the | ||
52 | * identification. | ||
53 | */ | ||
54 | |||
55 | #define GVP_PRODMASK (0xf8) | ||
56 | #define GVP_SCSICLKMASK (0x01) | ||
57 | |||
58 | enum GVP_flags { | ||
59 | GVP_IO = 0x01, | ||
60 | GVP_ACCEL = 0x02, | ||
61 | GVP_SCSI = 0x04, | ||
62 | GVP_24BITDMA = 0x08, | ||
63 | GVP_25BITDMA = 0x10, | ||
64 | GVP_NOBANK = 0x20, | ||
65 | GVP_14MHZ = 0x40, | ||
66 | }; | ||
67 | |||
68 | |||
69 | struct Node { | ||
70 | struct Node *ln_Succ; /* Pointer to next (successor) */ | ||
71 | struct Node *ln_Pred; /* Pointer to previous (predecessor) */ | ||
72 | __u8 ln_Type; | ||
73 | __s8 ln_Pri; /* Priority, for sorting */ | ||
74 | __s8 *ln_Name; /* ID string, null terminated */ | ||
75 | } __attribute__ ((packed)); | ||
76 | |||
77 | struct ExpansionRom { | ||
78 | /* -First 16 bytes of the expansion ROM */ | ||
79 | __u8 er_Type; /* Board type, size and flags */ | ||
80 | __u8 er_Product; /* Product number, assigned by manufacturer */ | ||
81 | __u8 er_Flags; /* Flags */ | ||
82 | __u8 er_Reserved03; /* Must be zero ($ff inverted) */ | ||
83 | __u16 er_Manufacturer; /* Unique ID, ASSIGNED BY COMMODORE-AMIGA! */ | ||
84 | __u32 er_SerialNumber; /* Available for use by manufacturer */ | ||
85 | __u16 er_InitDiagVec; /* Offset to optional "DiagArea" structure */ | ||
86 | __u8 er_Reserved0c; | ||
87 | __u8 er_Reserved0d; | ||
88 | __u8 er_Reserved0e; | ||
89 | __u8 er_Reserved0f; | ||
90 | } __attribute__ ((packed)); | ||
91 | |||
92 | /* er_Type board type bits */ | ||
93 | #define ERT_TYPEMASK 0xc0 | ||
94 | #define ERT_ZORROII 0xc0 | ||
95 | #define ERT_ZORROIII 0x80 | ||
96 | |||
97 | /* other bits defined in er_Type */ | ||
98 | #define ERTB_MEMLIST 5 /* Link RAM into free memory list */ | ||
99 | #define ERTF_MEMLIST (1<<5) | ||
100 | |||
101 | struct ConfigDev { | ||
102 | struct Node cd_Node; | ||
103 | __u8 cd_Flags; /* (read/write) */ | ||
104 | __u8 cd_Pad; /* reserved */ | ||
105 | struct ExpansionRom cd_Rom; /* copy of board's expansion ROM */ | ||
106 | void *cd_BoardAddr; /* where in memory the board was placed */ | ||
107 | __u32 cd_BoardSize; /* size of board in bytes */ | ||
108 | __u16 cd_SlotAddr; /* which slot number (PRIVATE) */ | ||
109 | __u16 cd_SlotSize; /* number of slots (PRIVATE) */ | ||
110 | void *cd_Driver; /* pointer to node of driver */ | ||
111 | struct ConfigDev *cd_NextCD; /* linked list of drivers to config */ | ||
112 | __u32 cd_Unused[4]; /* for whatever the driver wants */ | ||
113 | } __attribute__ ((packed)); | ||
114 | |||
115 | #else /* __ASSEMBLY__ */ | ||
116 | |||
117 | LN_Succ = 0 | ||
118 | LN_Pred = LN_Succ+4 | ||
119 | LN_Type = LN_Pred+4 | ||
120 | LN_Pri = LN_Type+1 | ||
121 | LN_Name = LN_Pri+1 | ||
122 | LN_sizeof = LN_Name+4 | ||
123 | |||
124 | ER_Type = 0 | ||
125 | ER_Product = ER_Type+1 | ||
126 | ER_Flags = ER_Product+1 | ||
127 | ER_Reserved03 = ER_Flags+1 | ||
128 | ER_Manufacturer = ER_Reserved03+1 | ||
129 | ER_SerialNumber = ER_Manufacturer+2 | ||
130 | ER_InitDiagVec = ER_SerialNumber+4 | ||
131 | ER_Reserved0c = ER_InitDiagVec+2 | ||
132 | ER_Reserved0d = ER_Reserved0c+1 | ||
133 | ER_Reserved0e = ER_Reserved0d+1 | ||
134 | ER_Reserved0f = ER_Reserved0e+1 | ||
135 | ER_sizeof = ER_Reserved0f+1 | ||
136 | |||
137 | CD_Node = 0 | ||
138 | CD_Flags = CD_Node+LN_sizeof | ||
139 | CD_Pad = CD_Flags+1 | ||
140 | CD_Rom = CD_Pad+1 | ||
141 | CD_BoardAddr = CD_Rom+ER_sizeof | ||
142 | CD_BoardSize = CD_BoardAddr+4 | ||
143 | CD_SlotAddr = CD_BoardSize+4 | ||
144 | CD_SlotSize = CD_SlotAddr+2 | ||
145 | CD_Driver = CD_SlotSize+2 | ||
146 | CD_NextCD = CD_Driver+4 | ||
147 | CD_Unused = CD_NextCD+4 | ||
148 | CD_sizeof = CD_Unused+(4*4) | ||
149 | |||
150 | #endif /* __ASSEMBLY__ */ | ||
151 | |||
152 | #ifndef __ASSEMBLY__ | ||
153 | |||
154 | #define ZORRO_NUM_AUTO 16 | ||
155 | |||
156 | #ifdef __KERNEL__ | ||
157 | |||
158 | #include <linux/init.h> | ||
159 | #include <linux/ioport.h> | ||
160 | |||
161 | #include <asm/zorro.h> | ||
162 | |||
163 | |||
164 | /* | ||
165 | * Zorro devices | ||
166 | */ | ||
167 | |||
168 | struct zorro_dev { | ||
169 | struct ExpansionRom rom; | ||
170 | zorro_id id; | ||
171 | struct zorro_driver *driver; /* which driver has allocated this device */ | ||
172 | struct device dev; /* Generic device interface */ | ||
173 | u16 slotaddr; | ||
174 | u16 slotsize; | ||
175 | char name[64]; | ||
176 | struct resource resource; | ||
177 | }; | ||
178 | |||
179 | #define to_zorro_dev(n) container_of(n, struct zorro_dev, dev) | ||
180 | |||
181 | |||
182 | /* | ||
183 | * Zorro bus | ||
184 | */ | ||
185 | |||
186 | struct zorro_bus { | ||
187 | struct list_head devices; /* list of devices on this bus */ | ||
188 | unsigned int num_resources; /* number of resources */ | ||
189 | struct resource resources[4]; /* address space routed to this bus */ | ||
190 | struct device dev; | ||
191 | char name[10]; | ||
192 | }; | ||
193 | |||
194 | extern struct zorro_bus zorro_bus; /* single Zorro bus */ | ||
195 | extern struct bus_type zorro_bus_type; | ||
196 | |||
197 | |||
198 | /* | ||
199 | * Zorro device IDs | ||
200 | */ | ||
201 | |||
202 | struct zorro_device_id { | ||
203 | zorro_id id; /* Device ID or ZORRO_WILDCARD */ | ||
204 | unsigned long driver_data; /* Data private to the driver */ | ||
205 | }; | ||
206 | |||
207 | |||
208 | /* | ||
209 | * Zorro device drivers | ||
210 | */ | ||
211 | |||
212 | struct zorro_driver { | ||
213 | struct list_head node; | ||
214 | char *name; | ||
215 | const struct zorro_device_id *id_table; /* NULL if wants all devices */ | ||
216 | int (*probe)(struct zorro_dev *z, const struct zorro_device_id *id); /* New device inserted */ | ||
217 | void (*remove)(struct zorro_dev *z); /* Device removed (NULL if not a hot-plug capable driver) */ | ||
218 | struct device_driver driver; | ||
219 | }; | ||
220 | |||
221 | #define to_zorro_driver(drv) container_of(drv, struct zorro_driver, driver) | ||
222 | |||
223 | |||
224 | #define zorro_for_each_dev(dev) \ | ||
225 | for (dev = &zorro_autocon[0]; dev < zorro_autocon+zorro_num_autocon; dev++) | ||
226 | |||
227 | |||
228 | /* New-style probing */ | ||
229 | extern int zorro_register_driver(struct zorro_driver *); | ||
230 | extern void zorro_unregister_driver(struct zorro_driver *); | ||
231 | extern const struct zorro_device_id *zorro_match_device(const struct zorro_device_id *ids, const struct zorro_dev *z); | ||
232 | static inline struct zorro_driver *zorro_dev_driver(const struct zorro_dev *z) | ||
233 | { | ||
234 | return z->driver; | ||
235 | } | ||
236 | |||
237 | |||
238 | extern unsigned int zorro_num_autocon; /* # of autoconfig devices found */ | ||
239 | extern struct zorro_dev zorro_autocon[ZORRO_NUM_AUTO]; | ||
240 | |||
241 | |||
242 | /* | ||
243 | * Zorro Functions | ||
244 | */ | ||
245 | |||
246 | extern struct zorro_dev *zorro_find_device(zorro_id id, | ||
247 | struct zorro_dev *from); | ||
248 | |||
249 | #define zorro_resource_start(z) ((z)->resource.start) | ||
250 | #define zorro_resource_end(z) ((z)->resource.end) | ||
251 | #define zorro_resource_len(z) ((z)->resource.end-(z)->resource.start+1) | ||
252 | #define zorro_resource_flags(z) ((z)->resource.flags) | ||
253 | |||
254 | #define zorro_request_device(z, name) \ | ||
255 | request_mem_region(zorro_resource_start(z), zorro_resource_len(z), name) | ||
256 | #define zorro_release_device(z) \ | ||
257 | release_mem_region(zorro_resource_start(z), zorro_resource_len(z)) | ||
258 | |||
259 | /* Similar to the helpers above, these manipulate per-zorro_dev | ||
260 | * driver-specific data. They are really just a wrapper around | ||
261 | * the generic device structure functions of these calls. | ||
262 | */ | ||
263 | static inline void *zorro_get_drvdata (struct zorro_dev *z) | ||
264 | { | ||
265 | return dev_get_drvdata(&z->dev); | ||
266 | } | ||
267 | |||
268 | static inline void zorro_set_drvdata (struct zorro_dev *z, void *data) | ||
269 | { | ||
270 | dev_set_drvdata(&z->dev, data); | ||
271 | } | ||
272 | |||
273 | |||
274 | /* | ||
275 | * A helper function which helps ensure correct zorro_driver | ||
276 | * setup and cleanup for commonly-encountered hotplug/modular cases | ||
277 | * | ||
278 | * This MUST stay in a header, as it checks for -DMODULE | ||
279 | */ | ||
280 | static inline int zorro_module_init(struct zorro_driver *drv) | ||
281 | { | ||
282 | int rc = zorro_register_driver(drv); | ||
283 | |||
284 | if (rc > 0) | ||
285 | return 0; | ||
286 | |||
287 | /* iff CONFIG_HOTPLUG and built into kernel, we should | ||
288 | * leave the driver around for future hotplug events. | ||
289 | * For the module case, a hotplug daemon of some sort | ||
290 | * should load a module in response to an insert event. */ | ||
291 | #if defined(CONFIG_HOTPLUG) && !defined(MODULE) | ||
292 | if (rc == 0) | ||
293 | return 0; | ||
294 | #else | ||
295 | if (rc == 0) | ||
296 | rc = -ENODEV; | ||
297 | #endif | ||
298 | |||
299 | /* if we get here, we need to clean up Zorro driver instance | ||
300 | * and return some sort of error */ | ||
301 | zorro_unregister_driver(drv); | ||
302 | |||
303 | return rc; | ||
304 | } | ||
305 | |||
306 | |||
307 | /* | ||
308 | * Bitmask indicating portions of available Zorro II RAM that are unused | ||
309 | * by the system. Every bit represents a 64K chunk, for a maximum of 8MB | ||
310 | * (128 chunks, physical 0x00200000-0x009fffff). | ||
311 | * | ||
312 | * If you want to use (= allocate) portions of this RAM, you should clear | ||
313 | * the corresponding bits. | ||
314 | */ | ||
315 | |||
316 | extern DECLARE_BITMAP(zorro_unused_z2ram, 128); | ||
317 | |||
318 | #define Z2RAM_START (0x00200000) | ||
319 | #define Z2RAM_END (0x00a00000) | ||
320 | #define Z2RAM_SIZE (0x00800000) | ||
321 | #define Z2RAM_CHUNKSIZE (0x00010000) | ||
322 | #define Z2RAM_CHUNKMASK (0x0000ffff) | ||
323 | #define Z2RAM_CHUNKSHIFT (16) | ||
324 | |||
325 | |||
326 | #endif /* !__ASSEMBLY__ */ | ||
327 | #endif /* __KERNEL__ */ | ||
328 | |||
329 | #endif /* _LINUX_ZORRO_H */ | ||