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[XFRM]: skb_cow_data() does not set proper owner for new skbs.
[linux-2.6/verdex.git] / drivers / ieee1394 / csr1212.h
blobe6734263a1d3c6c16375d52fba8c7455a48ac392
1 /*
2 * csr1212.h -- IEEE 1212 Control and Status Register support for Linux
3 *
4 * Copyright (C) 2003 Francois Retief <fgretief@sun.ac.za>
5 * Steve Kinneberg <kinnebergsteve@acmsystems.com>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
19 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
21 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
27 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #ifndef __CSR1212_H__
31 #define __CSR1212_H__
32
33
34 /* Compatibility layer */
35 #ifdef __KERNEL__
36
37 #include <linux/types.h>
38 #include <linux/slab.h>
39 #include <linux/interrupt.h>
40 #include <linux/sched.h>
41 #include <linux/vmalloc.h>
42 #include <asm/pgalloc.h>
43
44 #define CSR1212_MALLOC(size) vmalloc((size))
45 #define CSR1212_FREE(ptr) vfree(ptr)
46 #define CSR1212_BE16_TO_CPU(quad) be16_to_cpu(quad)
47 #define CSR1212_CPU_TO_BE16(quad) cpu_to_be16(quad)
48 #define CSR1212_BE32_TO_CPU(quad) be32_to_cpu(quad)
49 #define CSR1212_CPU_TO_BE32(quad) cpu_to_be32(quad)
50 #define CSR1212_BE64_TO_CPU(quad) be64_to_cpu(quad)
51 #define CSR1212_CPU_TO_BE64(quad) cpu_to_be64(quad)
52
53 #define CSR1212_LE16_TO_CPU(quad) le16_to_cpu(quad)
54 #define CSR1212_CPU_TO_LE16(quad) cpu_to_le16(quad)
55 #define CSR1212_LE32_TO_CPU(quad) le32_to_cpu(quad)
56 #define CSR1212_CPU_TO_LE32(quad) cpu_to_le32(quad)
57 #define CSR1212_LE64_TO_CPU(quad) le64_to_cpu(quad)
58 #define CSR1212_CPU_TO_LE64(quad) cpu_to_le64(quad)
59
60 #include <linux/errno.h>
61 #define CSR1212_SUCCESS (0)
62 #define CSR1212_EINVAL (-EINVAL)
63 #define CSR1212_ENOMEM (-ENOMEM)
64 #define CSR1212_ENOENT (-ENOENT)
65 #define CSR1212_EIO (-EIO)
66 #define CSR1212_EBUSY (-EBUSY)
67
68 #else /* Userspace */
69
70 #include <sys/types.h>
71 #include <malloc.h>
72 #define CSR1212_MALLOC(size) malloc(size)
73 #define CSR1212_FREE(ptr) free(ptr)
74 #include <endian.h>
75 #if __BYTE_ORDER == __LITTLE_ENDIAN
76 #include <byteswap.h>
77 #define CSR1212_BE16_TO_CPU(quad) bswap_16(quad)
78 #define CSR1212_CPU_TO_BE16(quad) bswap_16(quad)
79 #define CSR1212_BE32_TO_CPU(quad) bswap_32(quad)
80 #define CSR1212_CPU_TO_BE32(quad) bswap_32(quad)
81 #define CSR1212_BE64_TO_CPU(quad) bswap_64(quad)
82 #define CSR1212_CPU_TO_BE64(quad) bswap_64(quad)
83
84 #define CSR1212_LE16_TO_CPU(quad) (quad)
85 #define CSR1212_CPU_TO_LE16(quad) (quad)
86 #define CSR1212_LE32_TO_CPU(quad) (quad)
87 #define CSR1212_CPU_TO_LE32(quad) (quad)
88 #define CSR1212_LE64_TO_CPU(quad) (quad)
89 #define CSR1212_CPU_TO_LE64(quad) (quad)
90 #else
91 #define CSR1212_BE16_TO_CPU(quad) (quad)
92 #define CSR1212_CPU_TO_BE16(quad) (quad)
93 #define CSR1212_BE32_TO_CPU(quad) (quad)
94 #define CSR1212_CPU_TO_BE32(quad) (quad)
95 #define CSR1212_BE64_TO_CPU(quad) (quad)
96 #define CSR1212_CPU_TO_BE64(quad) (quad)
97
98 #define CSR1212_LE16_TO_CPU(quad) bswap_16(quad)
99 #define CSR1212_CPU_TO_LE16(quad) bswap_16(quad)
100 #define CSR1212_LE32_TO_CPU(quad) bswap_32(quad)
101 #define CSR1212_CPU_TO_LE32(quad) bswap_32(quad)
102 #define CSR1212_LE64_TO_CPU(quad) bswap_64(quad)
103 #define CSR1212_CPU_TO_LE64(quad) bswap_64(quad)
104 #endif
105
106 #include <errno.h>
107 #define CSR1212_SUCCESS (0)
108 #define CSR1212_EINVAL (EINVAL)
109 #define CSR1212_ENOMEM (ENOMEM)
110 #define CSR1212_ENOENT (ENOENT)
111 #define CSR1212_EIO (EIO)
112 #define CSR1212_EBUSY (EBUSY)
113
114 #endif
115
116
117 #define CSR1212_KV_VAL_MASK 0xffffff
118 #define CSR1212_KV_KEY_SHIFT 24
119 #define CSR1212_KV_KEY_TYPE_SHIFT 6
120 #define CSR1212_KV_KEY_ID_MASK 0x3f
121 #define CSR1212_KV_KEY_TYPE_MASK 0x3 /* After shift */
122
123
124 /* CSR 1212 key types */
125 #define CSR1212_KV_TYPE_IMMEDIATE 0
126 #define CSR1212_KV_TYPE_CSR_OFFSET 1
127 #define CSR1212_KV_TYPE_LEAF 2
128 #define CSR1212_KV_TYPE_DIRECTORY 3
129
130
131 /* CSR 1212 key ids */
132 #define CSR1212_KV_ID_DESCRIPTOR 0x01
133 #define CSR1212_KV_ID_BUS_DEPENDENT_INFO 0x02
134 #define CSR1212_KV_ID_VENDOR 0x03
135 #define CSR1212_KV_ID_HARDWARE_VERSION 0x04
136 #define CSR1212_KV_ID_MODULE 0x07
137 #define CSR1212_KV_ID_NODE_CAPABILITIES 0x0C
138 #define CSR1212_KV_ID_EUI_64 0x0D
139 #define CSR1212_KV_ID_UNIT 0x11
140 #define CSR1212_KV_ID_SPECIFIER_ID 0x12
141 #define CSR1212_KV_ID_VERSION 0x13
142 #define CSR1212_KV_ID_DEPENDENT_INFO 0x14
143 #define CSR1212_KV_ID_UNIT_LOCATION 0x15
144 #define CSR1212_KV_ID_MODEL 0x17
145 #define CSR1212_KV_ID_INSTANCE 0x18
146 #define CSR1212_KV_ID_KEYWORD 0x19
147 #define CSR1212_KV_ID_FEATURE 0x1A
148 #define CSR1212_KV_ID_EXTENDED_ROM 0x1B
149 #define CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID 0x1C
150 #define CSR1212_KV_ID_EXTENDED_KEY 0x1D
151 #define CSR1212_KV_ID_EXTENDED_DATA 0x1E
152 #define CSR1212_KV_ID_MODIFIABLE_DESCRIPTOR 0x1F
153 #define CSR1212_KV_ID_DIRECTORY_ID 0x20
154 #define CSR1212_KV_ID_REVISION 0x21
155
156
157 /* IEEE 1212 Address space map */
158 #define CSR1212_ALL_SPACE_BASE (0x000000000000ULL)
159 #define CSR1212_ALL_SPACE_SIZE (1ULL << 48)
160 #define CSR1212_ALL_SPACE_END (CSR1212_ALL_SPACE_BASE + CSR1212_ALL_SPACE_SIZE)
161
162 #define CSR1212_MEMORY_SPACE_BASE (0x000000000000ULL)
163 #define CSR1212_MEMORY_SPACE_SIZE ((256ULL * (1ULL << 40)) - (512ULL * (1ULL << 20)))
164 #define CSR1212_MEMORY_SPACE_END (CSR1212_MEMORY_SPACE_BASE + CSR1212_MEMORY_SPACE_SIZE)
165
166 #define CSR1212_PRIVATE_SPACE_BASE (0xffffe0000000ULL)
167 #define CSR1212_PRIVATE_SPACE_SIZE (256ULL * (1ULL << 20))
168 #define CSR1212_PRIVATE_SPACE_END (CSR1212_PRIVATE_SPACE_BASE + CSR1212_PRIVATE_SPACE_SIZE)
169
170 #define CSR1212_REGISTER_SPACE_BASE (0xfffff0000000ULL)
171 #define CSR1212_REGISTER_SPACE_SIZE (256ULL * (1ULL << 20))
172 #define CSR1212_REGISTER_SPACE_END (CSR1212_REGISTER_SPACE_BASE + CSR1212_REGISTER_SPACE_SIZE)
173
174 #define CSR1212_CSR_ARCH_REG_SPACE_BASE (0xfffff0000000ULL)
175 #define CSR1212_CSR_ARCH_REG_SPACE_SIZE (512)
176 #define CSR1212_CSR_ARCH_REG_SPACE_END (CSR1212_CSR_ARCH_REG_SPACE_BASE + CSR1212_CSR_ARCH_REG_SPACE_SIZE)
177 #define CSR1212_CSR_ARCH_REG_SPACE_OFFSET (CSR1212_CSR_ARCH_REG_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE)
178
179 #define CSR1212_CSR_BUS_DEP_REG_SPACE_BASE (0xfffff0000200ULL)
180 #define CSR1212_CSR_BUS_DEP_REG_SPACE_SIZE (512)
181 #define CSR1212_CSR_BUS_DEP_REG_SPACE_END (CSR1212_CSR_BUS_DEP_REG_SPACE_BASE + CSR1212_CSR_BUS_DEP_REG_SPACE_SIZE)
182 #define CSR1212_CSR_BUS_DEP_REG_SPACE_OFFSET (CSR1212_CSR_BUS_DEP_REG_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE)
183
184 #define CSR1212_CONFIG_ROM_SPACE_BASE (0xfffff0000400ULL)
185 #define CSR1212_CONFIG_ROM_SPACE_SIZE (1024)
186 #define CSR1212_CONFIG_ROM_SPACE_END (CSR1212_CONFIG_ROM_SPACE_BASE + CSR1212_CONFIG_ROM_SPACE_SIZE)
187 #define CSR1212_CONFIG_ROM_SPACE_OFFSET (CSR1212_CONFIG_ROM_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE)
188
189 #define CSR1212_UNITS_SPACE_BASE (0xfffff0000800ULL)
190 #define CSR1212_UNITS_SPACE_SIZE ((256ULL * (1ULL << 20)) - 2048)
191 #define CSR1212_UNITS_SPACE_END (CSR1212_UNITS_SPACE_BASE + CSR1212_UNITS_SPACE_SIZE)
192 #define CSR1212_UNITS_SPACE_OFFSET (CSR1212_UNITS_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE)
193
194 #define CSR1212_EXTENDED_ROM_SIZE (0x10000 * sizeof(u_int32_t))
195
196
197 /* Config ROM image structures */
198 struct csr1212_bus_info_block_img {
199 u_int8_t length;
200 u_int8_t crc_length;
201 u_int16_t crc;
202
203 /* Must be last */
204 u_int32_t data[0]; /* older gcc can't handle [] which is standard */
205 };
206
207 #define CSR1212_KV_KEY(quad) (CSR1212_BE32_TO_CPU(quad) >> CSR1212_KV_KEY_SHIFT)
208 #define CSR1212_KV_KEY_TYPE(quad) (CSR1212_KV_KEY(quad) >> CSR1212_KV_KEY_TYPE_SHIFT)
209 #define CSR1212_KV_KEY_ID(quad) (CSR1212_KV_KEY(quad) & CSR1212_KV_KEY_ID_MASK)
210 #define CSR1212_KV_VAL(quad) (CSR1212_BE32_TO_CPU(quad) & CSR1212_KV_VAL_MASK)
211
212 #define CSR1212_SET_KV_KEY(quad, key) ((quad) = \
213 CSR1212_CPU_TO_BE32(CSR1212_KV_VAL(quad) | ((key) << CSR1212_KV_KEY_SHIFT)))
214 #define CSR1212_SET_KV_VAL(quad, val) ((quad) = \
215 CSR1212_CPU_TO_BE32((CSR1212_KV_KEY(quad) << CSR1212_KV_KEY_SHIFT) | (val)))
216 #define CSR1212_SET_KV_TYPEID(quad, type, id) ((quad) = \
217 CSR1212_CPU_TO_BE32(CSR1212_KV_VAL(quad) | \
218 (((((type) & CSR1212_KV_KEY_TYPE_MASK) << CSR1212_KV_KEY_TYPE_SHIFT) | \
219 ((id) & CSR1212_KV_KEY_ID_MASK)) << CSR1212_KV_KEY_SHIFT)))
220
221 typedef u_int32_t csr1212_quad_t;
222
223
224 struct csr1212_keyval_img {
225 u_int16_t length;
226 u_int16_t crc;
227
228 /* Must be last */
229 csr1212_quad_t data[0]; /* older gcc can't handle [] which is standard */
230 };
231
232 struct csr1212_leaf {
233 int len;
234 u_int32_t *data;
235 };
236
237 struct csr1212_dentry {
238 struct csr1212_dentry *next, *prev;
239 struct csr1212_keyval *kv;
240 };
241
242 struct csr1212_directory {
243 int len;
244 struct csr1212_dentry *dentries_head, *dentries_tail;
245 };
246
247 struct csr1212_keyval {
248 struct {
249 u_int8_t type;
250 u_int8_t id;
251 } key;
252 union {
253 u_int32_t immediate;
254 u_int32_t csr_offset;
255 struct csr1212_leaf leaf;
256 struct csr1212_directory directory;
257 } value;
258 struct csr1212_keyval *associate;
259 int refcnt;
260
261 /* used in generating and/or parsing CSR image */
262 struct csr1212_keyval *next, *prev; /* flat list of CSR elements */
263 u_int32_t offset; /* position in CSR from 0xffff f000 0000 */
264 u_int8_t valid; /* flag indicating keyval has valid data*/
265 };
266
267
268 struct csr1212_cache_region {
269 struct csr1212_cache_region *next, *prev;
270 u_int32_t offset_start; /* inclusive */
271 u_int32_t offset_end; /* exclusive */
272 };
273
274 struct csr1212_csr_rom_cache {
275 struct csr1212_csr_rom_cache *next, *prev;
276 struct csr1212_cache_region *filled_head, *filled_tail;
277 struct csr1212_keyval *layout_head, *layout_tail;
278 size_t size;
279 u_int32_t offset;
280 struct csr1212_keyval *ext_rom;
281 size_t len;
282
283 /* Must be last */
284 u_int32_t data[0]; /* older gcc can't handle [] which is standard */
285 };
286
287 struct csr1212_csr {
288 size_t bus_info_len; /* bus info block length in bytes */
289 size_t crc_len; /* crc length in bytes */
290 u_int32_t *bus_info_data; /* bus info data incl bus name and EUI */
291
292 void *private; /* private, bus specific data */
293 struct csr1212_bus_ops *ops;
294
295 struct csr1212_keyval *root_kv;
296
297 int max_rom; /* max bytes readable in Config ROM region */
298
299 /* Items below used for image parsing and generation */
300 struct csr1212_csr_rom_cache *cache_head, *cache_tail;
301 };
302
303 struct csr1212_bus_ops {
304 /* This function is used by csr1212 to read additional information
305 * from remote nodes when parsing a Config ROM (i.e., read Config ROM
306 * entries located in the Units Space. Must return 0 on success
307 * anything else indicates an error. */
308 int (*bus_read) (struct csr1212_csr *csr, u_int64_t addr,
309 u_int16_t length, void *buffer, void *private);
310
311 /* This function is used by csr1212 to allocate a region in units space
312 * in the event that Config ROM entries don't all fit in the predefined
313 * 1K region. The void *private parameter is private member of struct
314 * csr1212_csr. */
315 u_int64_t (*allocate_addr_range) (u_int64_t size, u_int32_t alignment,
316 void *private);
317
318
319 /* This function is used by csr1212 to release a region in units space
320 * that is no longer needed. */
321 void (*release_addr) (u_int64_t addr, void *private);
322
323 /* This function is used by csr1212 to determine the max read request
324 * supported by a remote node when reading the ConfigROM space. Must
325 * return 0, 1, or 2 per IEEE 1212. */
326 int (*get_max_rom) (u_int32_t *bus_info, void *private);
327 };
328
329
330
331
332 /* Descriptor Leaf manipulation macros */
333 #define CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT 24
334 #define CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK 0xffffff
335 #define CSR1212_DESCRIPTOR_LEAF_OVERHEAD (1 * sizeof(u_int32_t))
336
337 #define CSR1212_DESCRIPTOR_LEAF_TYPE(kv) \
338 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[0]) >> CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT)
339 #define CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID(kv) \
340 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[0]) & \
341 CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK)
342 #define CSR1212_DESCRIPTOR_LEAF_DATA(kv) \
343 (&((kv)->value.leaf.data[1]))
344
345 #define CSR1212_DESCRIPTOR_LEAF_SET_TYPE(kv, type) \
346 ((kv)->value.leaf.data[0] = \
347 CSR1212_CPU_TO_BE32(CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID(kv) | \
348 ((type) << CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT)))
349 #define CSR1212_DESCRIPTOR_LEAF_SET_SPECIFIER_ID(kv, spec_id) \
350 ((kv)->value.leaf.data[0] = \
351 CSR1212_CPU_TO_BE32((CSR1212_DESCRIPTOR_LEAF_TYPE(kv) << \
352 CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT) | \
353 ((spec_id) & CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK)))
354
355 /* Text Descriptor Leaf manipulation macros */
356 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT 28
357 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_MASK 0xf /* after shift */
358 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT 16
359 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK 0xfff /* after shift */
360 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK 0xffff
361 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_OVERHEAD (1 * sizeof(u_int32_t))
362
363 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH(kv) \
364 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[1]) >> \
365 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT)
366 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET(kv) \
367 ((CSR1212_BE32_TO_CPU((kv)->value.leaf.data[1]) >> \
368 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT) & \
369 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK)
370 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE(kv) \
371 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[1]) & \
372 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK)
373 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_DATA(kv) \
374 (&((kv)->value.leaf.data[2]))
375
376 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_SET_WIDTH(kv, width) \
377 ((kv)->value.leaf.data[1] = \
378 ((kv)->value.leaf.data[1] & \
379 CSR1212_CPU_TO_BE32(~(CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_MASK << \
380 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT))) | \
381 CSR1212_CPU_TO_BE32(((width) & \
382 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_MASK) << \
383 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT))
384 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_SET_CHAR_SET(kv, char_set) \
385 ((kv)->value.leaf.data[1] = \
386 ((kv)->value.leaf.data[1] & \
387 CSR1212_CPU_TO_BE32(~(CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK << \
388 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT))) | \
389 CSR1212_CPU_TO_BE32(((char_set) & \
390 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK) << \
391 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT))
392 #define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_SET_LANGUAGE(kv, language) \
393 ((kv)->value.leaf.data[1] = \
394 ((kv)->value.leaf.data[1] & \
395 CSR1212_CPU_TO_BE32(~(CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK))) | \
396 CSR1212_CPU_TO_BE32(((language) & \
397 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK)))
398
399
400 /* Icon Descriptor Leaf manipulation macros */
401 #define CSR1212_ICON_DESCRIPTOR_LEAF_VERSION_MASK 0xffffff
402 #define CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_SHIFT 30
403 #define CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_MASK 0x3 /* after shift */
404 #define CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_SHIFT 16
405 #define CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_MASK 0xf /* after shift */
406 #define CSR1212_ICON_DESCRIPTOR_LEAF_LANGUAGE_MASK 0xffff
407 #define CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_SHIFT 16
408 #define CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_MASK 0xffff /* after shift */
409 #define CSR1212_ICON_DESCRIPTOR_LEAF_VSCAN_MASK 0xffff
410 #define CSR1212_ICON_DESCRIPTOR_LEAF_OVERHEAD (3 * sizeof(u_int32_t))
411
412 #define CSR1212_ICON_DESCRIPTOR_LEAF_VERSION(kv) \
413 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[2]) & \
414 CSR1212_ICON_DESCRIPTOR_LEAF_VERSION_MASK)
415
416 #define CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH(kv) \
417 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[3]) >> \
418 CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_SHIFT)
419
420 #define CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE(kv) \
421 ((CSR1212_BE32_TO_CPU((kv)->value.leaf.data[3]) >> \
422 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_SHIFT) & \
423 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_MASK)
424
425 #define CSR1212_ICON_DESCRIPTOR_LEAF_LANGUAGE(kv) \
426 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[3]) & \
427 CSR1212_ICON_DESCRIPTOR_LEAF_LANGUAGE_MASK)
428
429 #define CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN(kv) \
430 ((CSR1212_BE32_TO_CPU((kv)->value.leaf.data[4]) >> \
431 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_HSCAN_SHIFT) & \
432 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_HSCAN_MASK)
433
434 #define CSR1212_ICON_DESCRIPTOR_LEAF_VSCAN(kv) \
435 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[4]) & \
436 CSR1212_ICON_DESCRIPTOR_LEAF_VSCAN_MASK)
437
438 #define CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE(kv) \
439 (&((kv)->value.leaf.data[5]))
440
441 static inline u_int32_t *CSR1212_ICON_DESCRIPTOR_LEAF_PIXELS(struct csr1212_keyval *kv)
442 {
443 static const int pd[4] = { 0, 4, 16, 256 };
444 static const int cs[16] = { 4, 2 };
445 int ps = pd[CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH(kv)];
446
447 return &kv->value.leaf.data[5 +
448 (ps * cs[CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE(kv)]) /
449 sizeof(u_int32_t)];
450 }
451
452 #define CSR1212_ICON_DESCRIPTOR_LEAF_SET_VERSION(kv, version) \
453 ((kv)->value.leaf.data[2] = \
454 ((kv)->value.leaf.data[2] & \
455 CSR1212_CPU_TO_BE32(~(CSR1212_ICON_DESCRIPTOR_LEAF_VERSION_MASK))) | \
456 CSR1212_CPU_TO_BE32(((version) & \
457 CSR1212_ICON_DESCRIPTOR_LEAF_VERSION_MASK)))
458
459 #define CSR1212_ICON_DESCRIPTOR_LEAF_SET_PALETTE_DEPTH(kv, palette_depth) \
460 ((kv)->value.leaf.data[3] = \
461 ((kv)->value.leaf.data[3] & \
462 CSR1212_CPU_TO_BE32(~(CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_MASK << \
463 CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_SHIFT))) | \
464 CSR1212_CPU_TO_BE32(((palette_depth) & \
465 CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_MASK) << \
466 CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_SHIFT))
467
468 #define CSR1212_ICON_DESCRIPTOR_LEAF_SET_COLOR_SPACE(kv, color_space) \
469 ((kv)->value.leaf.data[3] = \
470 ((kv)->value.leaf.data[3] & \
471 CSR1212_CPU_TO_BE32(~(CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_MASK << \
472 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_SHIFT))) | \
473 CSR1212_CPU_TO_BE32(((color_space) & \
474 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_MASK) << \
475 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_SHIFT))
476
477 #define CSR1212_ICON_DESCRIPTOR_LEAF_SET_LANGUAGE(kv, language) \
478 ((kv)->value.leaf.data[3] = \
479 ((kv)->value.leaf.data[3] & \
480 CSR1212_CPU_TO_BE32(~(CSR1212_ICON_DESCRIPTOR_LEAF_LANGUAGE_MASK))) | \
481 CSR1212_CPU_TO_BE32(((language) & \
482 CSR1212_ICON_DESCRIPTOR_LEAF_LANGUAGE_MASK)))
483
484 #define CSR1212_ICON_DESCRIPTOR_LEAF_SET_HSCAN(kv, hscan) \
485 ((kv)->value.leaf.data[4] = \
486 ((kv)->value.leaf.data[4] & \
487 CSR1212_CPU_TO_BE32(~(CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_MASK << \
488 CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_SHIFT))) | \
489 CSR1212_CPU_TO_BE32(((hscan) & \
490 CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_MASK) << \
491 CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_SHIFT))
492
493 #define CSR1212_ICON_DESCRIPTOR_LEAF_SET_VSCAN(kv, vscan) \
494 ((kv)->value.leaf.data[4] = \
495 (((kv)->value.leaf.data[4] & \
496 CSR1212_CPU_TO_BE32(~CSR1212_ICON_DESCRIPTOR_LEAF_VSCAN_MASK))) | \
497 CSR1212_CPU_TO_BE32(((vscan) & \
498 CSR1212_ICON_DESCRIPTOR_LEAF_VSCAN_MASK)))
499
500
501 /* Modifiable Descriptor Leaf manipulation macros */
502 #define CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_SHIFT 16
503 #define CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_MASK 0xffff
504 #define CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_HI_SHIFT 32
505 #define CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_HI_MASK 0xffff
506 #define CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_LO_MASK 0xffffffffULL
507
508 #define CSR1212_MODIFIABLE_DESCRIPTOR_MAX_SIZE(kv) \
509 CSR1212_BE16_TO_CPU((kv)->value.leaf.data[0] >> CSR1212_MODIFIABLE_DESCRIPTOR_MAX_SIZE_SHIFT)
510
511 #define CSR1212_MODIFIABLE_DESCRIPTOR_ADDRESS(kv) \
512 (CSR1212_BE16_TO_CPU(((u_int64_t)((kv)->value.leaf.data[0])) << \
513 CSR1212_MODIFIABLE_DESCRIPTOR_ADDR_HI_SHIFT) | \
514 CSR1212_BE32_TO_CPU((kv)->value.leaf.data[1]))
515
516 #define CSR1212_MODIFIABLE_DESCRIPTOR_SET_MAX_SIZE(kv, size) \
517 ((kv)->value.leaf.data[0] = \
518 ((kv)->value.leaf.data[0] & \
519 CSR1212_CPU_TO_BE32(~(CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_MASK << \
520 CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_SHIFT))) | \
521 CSR1212_CPU_TO_BE32(((size) & \
522 CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_MASK) << \
523 CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_SHIFT))
524
525 #define CSR1212_MODIFIABLE_DESCRIPTOR_SET_ADDRESS_HI(kv, addr) \
526 ((kv)->value.leaf.data[0] = \
527 ((kv)->value.leaf.data[0] & \
528 CSR1212_CPU_TO_BE32(~(CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_HI_MASK))) | \
529 CSR1212_CPU_TO_BE32(((addr) & \
530 CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_HI_MASK)))
531
532 #define CSR1212_MODIFIABLE_DESCRIPTOR_SET_ADDRESS_LO(kv, addr) \
533 ((kv)->value.leaf.data[1] = \
534 CSR1212_CPU_TO_BE32(addr & CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_LO_MASK))
535
536
537
538 /* The following 2 function are for creating new Configuration ROM trees. The
539 * first function is used for both creating local trees and parsing remote
540 * trees. The second function adds pertinent information to local Configuration
541 * ROM trees - namely data for the bus information block. */
542 extern struct csr1212_csr *csr1212_create_csr(struct csr1212_bus_ops *ops,
543 size_t bus_info_size,
544 void *private);
545 extern void csr1212_init_local_csr(struct csr1212_csr *csr,
546 const u_int32_t *bus_info_data, int max_rom);
547
548
549 /* The following function destroys a Configuration ROM tree and release all
550 * memory taken by the tree. */
551 extern void csr1212_destroy_csr(struct csr1212_csr *csr);
552
553
554 /* The following set of functions are fore creating new keyvals for placement in
555 * a Configuration ROM tree. Code that creates new keyvals with these functions
556 * must release those keyvals with csr1212_release_keyval() when they are no
557 * longer needed. */
558 extern struct csr1212_keyval *csr1212_new_immediate(u_int8_t key, u_int32_t value);
559 extern struct csr1212_keyval *csr1212_new_leaf(u_int8_t key, const void *data,
560 size_t data_len);
561 extern struct csr1212_keyval *csr1212_new_csr_offset(u_int8_t key,
562 u_int32_t csr_offset);
563 extern struct csr1212_keyval *csr1212_new_directory(u_int8_t key);
564 extern struct csr1212_keyval *csr1212_new_extended_immediate(u_int32_t spec,
565 u_int32_t key,
566 u_int32_t value);
567 extern struct csr1212_keyval *csr1212_new_extended_leaf(u_int32_t spec,
568 u_int32_t key,
569 const void *data,
570 size_t data_len);
571 extern struct csr1212_keyval *csr1212_new_descriptor_leaf(u_int8_t dtype,
572 u_int32_t specifier_id,
573 const void *data,
574 size_t data_len);
575 extern struct csr1212_keyval *csr1212_new_textual_descriptor_leaf(u_int8_t cwidth,
576 u_int16_t cset,
577 u_int16_t language,
578 const void *data,
579 size_t data_len);
580 extern struct csr1212_keyval *csr1212_new_string_descriptor_leaf(const char *s);
581 extern struct csr1212_keyval *csr1212_new_icon_descriptor_leaf(u_int32_t version,
582 u_int8_t palette_depth,
583 u_int8_t color_space,
584 u_int16_t language,
585 u_int16_t hscan,
586 u_int16_t vscan,
587 u_int32_t *palette,
588 u_int32_t *pixels);
589 extern struct csr1212_keyval *csr1212_new_modifiable_descriptor_leaf(u_int16_t max_size,
590 u_int64_t address);
591 extern struct csr1212_keyval *csr1212_new_keyword_leaf(int strc,
592 const char *strv[]);
593
594
595 /* The following functions manage association between keyvals. Typically,
596 * Descriptor Leaves and Directories will be associated with another keyval and
597 * it is desirable for the Descriptor keyval to be place immediately after the
598 * keyval that it is associated with.*/
599 extern int csr1212_associate_keyval(struct csr1212_keyval *kv,
600 struct csr1212_keyval *associate);
601 extern void csr1212_disassociate_keyval(struct csr1212_keyval *kv);
602
603
604 /* The following functions manage the association of a keyval and directories.
605 * A keyval may be attached to more than one directory. */
606 extern int csr1212_attach_keyval_to_directory(struct csr1212_keyval *dir,
607 struct csr1212_keyval *kv);
608 extern void csr1212_detach_keyval_from_directory(struct csr1212_keyval *dir,
609 struct csr1212_keyval *kv);
610
611
612 /* The following functions create a Configuration ROM image from the tree of
613 * keyvals provided. csr1212_generate_csr_image() creates a complete image in
614 * the list of caches available via csr->cache_head. The other functions are
615 * provided should there be a need to create a flat image without restrictions
616 * placed by IEEE 1212. */
617 extern struct csr1212_keyval *csr1212_generate_positions(struct csr1212_csr_rom_cache *cache,
618 struct csr1212_keyval *start_kv,
619 int start_pos);
620 extern size_t csr1212_generate_layout_order(struct csr1212_keyval *kv);
621 extern void csr1212_fill_cache(struct csr1212_csr_rom_cache *cache);
622 extern int csr1212_generate_csr_image(struct csr1212_csr *csr);
623
624
625 /* This is a convience function for reading a block of data out of one of the
626 * caches in the csr->cache_head list. */
627 extern int csr1212_read(struct csr1212_csr *csr, u_int32_t offset, void *buffer,
628 u_int32_t len);
629
630
631 /* The following functions are in place for parsing Configuration ROM images.
632 * csr1212_parse_keyval() is used should there be a need to directly parse a
633 * Configuration ROM directly. */
634 extern int csr1212_parse_keyval(struct csr1212_keyval *kv,
635 struct csr1212_csr_rom_cache *cache);
636 extern int csr1212_parse_csr(struct csr1212_csr *csr);
637
638 /* These are internal functions referenced by inline functions below. */
639 extern int _csr1212_read_keyval(struct csr1212_csr *csr, struct csr1212_keyval *kv);
640 extern void _csr1212_destroy_keyval(struct csr1212_keyval *kv);
641
642
643 /* This function allocates a new cache which may be used for either parsing or
644 * generating sub-sets of Configuration ROM images. */
645 static inline struct csr1212_csr_rom_cache *csr1212_rom_cache_malloc(u_int32_t offset,
646 size_t size)
647 {
648 struct csr1212_csr_rom_cache *cache;
649
650 cache = CSR1212_MALLOC(sizeof(struct csr1212_csr_rom_cache) + size);
651 if (!cache)
652 return NULL;
653
654 cache->next = NULL;
655 cache->prev = NULL;
656 cache->filled_head = NULL;
657 cache->filled_tail = NULL;
658 cache->layout_head = NULL;
659 cache->layout_tail = NULL;
660 cache->offset = offset;
661 cache->size = size;
662 cache->ext_rom = NULL;
663
664 return cache;
665 }
666
667
668 /* This function ensures that a keyval contains data when referencing a keyval
669 * created by parsing a Configuration ROM. */
670 static inline struct csr1212_keyval *csr1212_get_keyval(struct csr1212_csr *csr,
671 struct csr1212_keyval *kv)
672 {
673 if (!kv)
674 return NULL;
675 if (!kv->valid)
676 if (_csr1212_read_keyval(csr, kv) != CSR1212_SUCCESS)
677 return NULL;
678 return kv;
679 }
680
681
682 /* This function increments the reference count for a keyval should there be a
683 * need for code to retain a keyval that has been parsed. */
684 static inline void csr1212_keep_keyval(struct csr1212_keyval *kv)
685 {
686 kv->refcnt++;
687 }
688
689
690 /* This function decrements a keyval's reference count and will destroy the
691 * keyval when there are no more users of the keyval. This should be called by
692 * any code that calls csr1212_keep_keyval() or any of the keyval creation
693 * routines csr1212_new_*(). */
694 static inline void csr1212_release_keyval(struct csr1212_keyval *kv)
695 {
696 if (kv->refcnt > 1)
697 kv->refcnt--;
698 else
699 _csr1212_destroy_keyval(kv);
700 }
701
702
703 /*
704 * This macro allows for looping over the keyval entries in a directory and it
705 * ensures that keyvals from remote ConfigROMs are parsed properly.
706 *
707 * _csr is a struct csr1212_csr * that points to CSR associated with dir.
708 * _kv is a struct csr1212_keyval * that'll point to the current keyval (loop index).
709 * _dir is a struct csr1212_keyval * that points to the directory to be looped.
710 * _pos is a struct csr1212_dentry * that is used internally for indexing.
711 *
712 * kv will be NULL upon exit of the loop.
713 */
714 #define csr1212_for_each_dir_entry(_csr, _kv, _dir, _pos) \
715 for (csr1212_get_keyval((_csr), (_dir)), \
716 _pos = (_dir)->value.directory.dentries_head, \
717 _kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : NULL; \
718 (_kv) && (_pos); \
719 (_kv->associate == NULL) ? \
720 ((_pos = _pos->next), \
721 (_kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : \
722 NULL)) : \
723 (_kv = csr1212_get_keyval((_csr), _kv->associate)))
724
725
726
727 #endif /* __CSR1212_H__ */
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