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1da177e4 LT |
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 | ||
1da177e4 LT |
14 | #include <linux/device.h> |
15 | ||
16 | ||
17 | /* | |
18 | * Each Zorro board has a 32-bit ID of the form | |
19 | * | |
20 | * mmmmmmmmmmmmmmmmppppppppeeeeeeee | |
21 | * | |
22 | * with | |
23 | * | |
24 | * mmmmmmmmmmmmmmmm 16-bit Manufacturer ID (assigned by CBM (sigh)) | |
25 | * pppppppp 8-bit Product ID (assigned by manufacturer) | |
26 | * eeeeeeee 8-bit Extended Product ID (currently only used | |
27 | * for some GVP boards) | |
28 | */ | |
29 | ||
30 | ||
31 | #define ZORRO_MANUF(id) ((id) >> 16) | |
32 | #define ZORRO_PROD(id) (((id) >> 8) & 0xff) | |
33 | #define ZORRO_EPC(id) ((id) & 0xff) | |
34 | ||
35 | #define ZORRO_ID(manuf, prod, epc) \ | |
36 | ((ZORRO_MANUF_##manuf << 16) | ((prod) << 8) | (epc)) | |
37 | ||
38 | typedef __u32 zorro_id; | |
39 | ||
40 | ||
1da177e4 LT |
41 | /* Include the ID list */ |
42 | #include <linux/zorro_ids.h> | |
43 | ||
44 | ||
45 | /* | |
46 | * GVP identifies most of its products through the 'extended product code' | |
47 | * (epc). The epc has to be ANDed with the GVP_PRODMASK before the | |
48 | * identification. | |
49 | */ | |
50 | ||
51 | #define GVP_PRODMASK (0xf8) | |
52 | #define GVP_SCSICLKMASK (0x01) | |
53 | ||
54 | enum GVP_flags { | |
55 | GVP_IO = 0x01, | |
56 | GVP_ACCEL = 0x02, | |
57 | GVP_SCSI = 0x04, | |
58 | GVP_24BITDMA = 0x08, | |
59 | GVP_25BITDMA = 0x10, | |
60 | GVP_NOBANK = 0x20, | |
61 | GVP_14MHZ = 0x40, | |
62 | }; | |
63 | ||
64 | ||
65 | struct Node { | |
66 | struct Node *ln_Succ; /* Pointer to next (successor) */ | |
67 | struct Node *ln_Pred; /* Pointer to previous (predecessor) */ | |
68 | __u8 ln_Type; | |
69 | __s8 ln_Pri; /* Priority, for sorting */ | |
70 | __s8 *ln_Name; /* ID string, null terminated */ | |
71 | } __attribute__ ((packed)); | |
72 | ||
73 | struct ExpansionRom { | |
74 | /* -First 16 bytes of the expansion ROM */ | |
75 | __u8 er_Type; /* Board type, size and flags */ | |
76 | __u8 er_Product; /* Product number, assigned by manufacturer */ | |
77 | __u8 er_Flags; /* Flags */ | |
78 | __u8 er_Reserved03; /* Must be zero ($ff inverted) */ | |
79 | __u16 er_Manufacturer; /* Unique ID, ASSIGNED BY COMMODORE-AMIGA! */ | |
80 | __u32 er_SerialNumber; /* Available for use by manufacturer */ | |
81 | __u16 er_InitDiagVec; /* Offset to optional "DiagArea" structure */ | |
82 | __u8 er_Reserved0c; | |
83 | __u8 er_Reserved0d; | |
84 | __u8 er_Reserved0e; | |
85 | __u8 er_Reserved0f; | |
86 | } __attribute__ ((packed)); | |
87 | ||
88 | /* er_Type board type bits */ | |
89 | #define ERT_TYPEMASK 0xc0 | |
90 | #define ERT_ZORROII 0xc0 | |
91 | #define ERT_ZORROIII 0x80 | |
92 | ||
93 | /* other bits defined in er_Type */ | |
94 | #define ERTB_MEMLIST 5 /* Link RAM into free memory list */ | |
95 | #define ERTF_MEMLIST (1<<5) | |
96 | ||
97 | struct ConfigDev { | |
98 | struct Node cd_Node; | |
99 | __u8 cd_Flags; /* (read/write) */ | |
100 | __u8 cd_Pad; /* reserved */ | |
101 | struct ExpansionRom cd_Rom; /* copy of board's expansion ROM */ | |
102 | void *cd_BoardAddr; /* where in memory the board was placed */ | |
103 | __u32 cd_BoardSize; /* size of board in bytes */ | |
104 | __u16 cd_SlotAddr; /* which slot number (PRIVATE) */ | |
105 | __u16 cd_SlotSize; /* number of slots (PRIVATE) */ | |
106 | void *cd_Driver; /* pointer to node of driver */ | |
107 | struct ConfigDev *cd_NextCD; /* linked list of drivers to config */ | |
108 | __u32 cd_Unused[4]; /* for whatever the driver wants */ | |
109 | } __attribute__ ((packed)); | |
110 | ||
1da177e4 LT |
111 | #define ZORRO_NUM_AUTO 16 |
112 | ||
113 | #ifdef __KERNEL__ | |
114 | ||
115 | #include <linux/init.h> | |
116 | #include <linux/ioport.h> | |
bf54a2b3 | 117 | #include <linux/mod_devicetable.h> |
1da177e4 LT |
118 | |
119 | #include <asm/zorro.h> | |
120 | ||
121 | ||
122 | /* | |
123 | * Zorro devices | |
124 | */ | |
125 | ||
126 | struct zorro_dev { | |
127 | struct ExpansionRom rom; | |
128 | zorro_id id; | |
129 | struct zorro_driver *driver; /* which driver has allocated this device */ | |
130 | struct device dev; /* Generic device interface */ | |
131 | u16 slotaddr; | |
132 | u16 slotsize; | |
133 | char name[64]; | |
134 | struct resource resource; | |
135 | }; | |
136 | ||
137 | #define to_zorro_dev(n) container_of(n, struct zorro_dev, dev) | |
138 | ||
139 | ||
140 | /* | |
141 | * Zorro bus | |
142 | */ | |
143 | ||
1da177e4 LT |
144 | extern struct bus_type zorro_bus_type; |
145 | ||
146 | ||
1da177e4 LT |
147 | /* |
148 | * Zorro device drivers | |
149 | */ | |
150 | ||
151 | struct zorro_driver { | |
152 | struct list_head node; | |
153 | char *name; | |
154 | const struct zorro_device_id *id_table; /* NULL if wants all devices */ | |
155 | int (*probe)(struct zorro_dev *z, const struct zorro_device_id *id); /* New device inserted */ | |
156 | void (*remove)(struct zorro_dev *z); /* Device removed (NULL if not a hot-plug capable driver) */ | |
157 | struct device_driver driver; | |
158 | }; | |
159 | ||
160 | #define to_zorro_driver(drv) container_of(drv, struct zorro_driver, driver) | |
161 | ||
162 | ||
163 | #define zorro_for_each_dev(dev) \ | |
164 | for (dev = &zorro_autocon[0]; dev < zorro_autocon+zorro_num_autocon; dev++) | |
165 | ||
166 | ||
167 | /* New-style probing */ | |
168 | extern int zorro_register_driver(struct zorro_driver *); | |
169 | extern void zorro_unregister_driver(struct zorro_driver *); | |
170 | extern const struct zorro_device_id *zorro_match_device(const struct zorro_device_id *ids, const struct zorro_dev *z); | |
171 | static inline struct zorro_driver *zorro_dev_driver(const struct zorro_dev *z) | |
172 | { | |
173 | return z->driver; | |
174 | } | |
175 | ||
176 | ||
177 | extern unsigned int zorro_num_autocon; /* # of autoconfig devices found */ | |
c293738e GU |
178 | extern struct zorro_dev *zorro_autocon; |
179 | ||
180 | ||
181 | /* | |
182 | * Minimal information about a Zorro device, passed from bootinfo | |
183 | * Only available temporarily, i.e. until initmem has been freed! | |
184 | */ | |
185 | ||
186 | struct zorro_dev_init { | |
187 | struct ExpansionRom rom; | |
188 | u16 slotaddr; | |
189 | u16 slotsize; | |
190 | u32 boardaddr; | |
191 | u32 boardsize; | |
192 | }; | |
193 | ||
194 | extern struct zorro_dev_init zorro_autocon_init[ZORRO_NUM_AUTO] __initdata; | |
1da177e4 LT |
195 | |
196 | ||
197 | /* | |
198 | * Zorro Functions | |
199 | */ | |
200 | ||
201 | extern struct zorro_dev *zorro_find_device(zorro_id id, | |
202 | struct zorro_dev *from); | |
203 | ||
204 | #define zorro_resource_start(z) ((z)->resource.start) | |
205 | #define zorro_resource_end(z) ((z)->resource.end) | |
28f65c11 | 206 | #define zorro_resource_len(z) (resource_size(&(z)->resource)) |
1da177e4 LT |
207 | #define zorro_resource_flags(z) ((z)->resource.flags) |
208 | ||
209 | #define zorro_request_device(z, name) \ | |
210 | request_mem_region(zorro_resource_start(z), zorro_resource_len(z), name) | |
211 | #define zorro_release_device(z) \ | |
212 | release_mem_region(zorro_resource_start(z), zorro_resource_len(z)) | |
213 | ||
214 | /* Similar to the helpers above, these manipulate per-zorro_dev | |
215 | * driver-specific data. They are really just a wrapper around | |
216 | * the generic device structure functions of these calls. | |
217 | */ | |
218 | static inline void *zorro_get_drvdata (struct zorro_dev *z) | |
219 | { | |
220 | return dev_get_drvdata(&z->dev); | |
221 | } | |
222 | ||
223 | static inline void zorro_set_drvdata (struct zorro_dev *z, void *data) | |
224 | { | |
225 | dev_set_drvdata(&z->dev, data); | |
226 | } | |
227 | ||
228 | ||
1da177e4 LT |
229 | /* |
230 | * Bitmask indicating portions of available Zorro II RAM that are unused | |
231 | * by the system. Every bit represents a 64K chunk, for a maximum of 8MB | |
232 | * (128 chunks, physical 0x00200000-0x009fffff). | |
233 | * | |
234 | * If you want to use (= allocate) portions of this RAM, you should clear | |
235 | * the corresponding bits. | |
236 | */ | |
237 | ||
238 | extern DECLARE_BITMAP(zorro_unused_z2ram, 128); | |
239 | ||
240 | #define Z2RAM_START (0x00200000) | |
241 | #define Z2RAM_END (0x00a00000) | |
242 | #define Z2RAM_SIZE (0x00800000) | |
243 | #define Z2RAM_CHUNKSIZE (0x00010000) | |
244 | #define Z2RAM_CHUNKMASK (0x0000ffff) | |
245 | #define Z2RAM_CHUNKSHIFT (16) | |
246 | ||
247 | ||
1da177e4 LT |
248 | #endif /* __KERNEL__ */ |
249 | ||
250 | #endif /* _LINUX_ZORRO_H */ |