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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
[deliverable/linux.git] / drivers / ieee1394 / csr1212.h
CommitLineData
1da177e4
LT		 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>
1da177e4
LT		 40#include <linux/vmalloc.h>
41#include <asm/pgalloc.h>
42
43#define CSR1212_MALLOC(size) vmalloc((size))
44#define CSR1212_FREE(ptr) vfree(ptr)
45#define CSR1212_BE16_TO_CPU(quad) be16_to_cpu(quad)
46#define CSR1212_CPU_TO_BE16(quad) cpu_to_be16(quad)
47#define CSR1212_BE32_TO_CPU(quad) be32_to_cpu(quad)
48#define CSR1212_CPU_TO_BE32(quad) cpu_to_be32(quad)
49#define CSR1212_BE64_TO_CPU(quad) be64_to_cpu(quad)
50#define CSR1212_CPU_TO_BE64(quad) cpu_to_be64(quad)
51
52#define CSR1212_LE16_TO_CPU(quad) le16_to_cpu(quad)
53#define CSR1212_CPU_TO_LE16(quad) cpu_to_le16(quad)
54#define CSR1212_LE32_TO_CPU(quad) le32_to_cpu(quad)
55#define CSR1212_CPU_TO_LE32(quad) cpu_to_le32(quad)
56#define CSR1212_LE64_TO_CPU(quad) le64_to_cpu(quad)
57#define CSR1212_CPU_TO_LE64(quad) cpu_to_le64(quad)
58
59#include <linux/errno.h>
60#define CSR1212_SUCCESS (0)
61#define CSR1212_EINVAL (-EINVAL)
62#define CSR1212_ENOMEM (-ENOMEM)
63#define CSR1212_ENOENT (-ENOENT)
64#define CSR1212_EIO (-EIO)
65#define CSR1212_EBUSY (-EBUSY)
66
67#else /* Userspace */
68
69#include <sys/types.h>
70#include <malloc.h>
71#define CSR1212_MALLOC(size) malloc(size)
72#define CSR1212_FREE(ptr) free(ptr)
73#include <endian.h>
74#if __BYTE_ORDER == __LITTLE_ENDIAN
75#include <byteswap.h>
76#define CSR1212_BE16_TO_CPU(quad) bswap_16(quad)
77#define CSR1212_CPU_TO_BE16(quad) bswap_16(quad)
78#define CSR1212_BE32_TO_CPU(quad) bswap_32(quad)
79#define CSR1212_CPU_TO_BE32(quad) bswap_32(quad)
80#define CSR1212_BE64_TO_CPU(quad) bswap_64(quad)
81#define CSR1212_CPU_TO_BE64(quad) bswap_64(quad)
82
83#define CSR1212_LE16_TO_CPU(quad) (quad)
84#define CSR1212_CPU_TO_LE16(quad) (quad)
85#define CSR1212_LE32_TO_CPU(quad) (quad)
86#define CSR1212_CPU_TO_LE32(quad) (quad)
87#define CSR1212_LE64_TO_CPU(quad) (quad)
88#define CSR1212_CPU_TO_LE64(quad) (quad)
89#else
90#define CSR1212_BE16_TO_CPU(quad) (quad)
91#define CSR1212_CPU_TO_BE16(quad) (quad)
92#define CSR1212_BE32_TO_CPU(quad) (quad)
93#define CSR1212_CPU_TO_BE32(quad) (quad)
94#define CSR1212_BE64_TO_CPU(quad) (quad)
95#define CSR1212_CPU_TO_BE64(quad) (quad)
96
97#define CSR1212_LE16_TO_CPU(quad) bswap_16(quad)
98#define CSR1212_CPU_TO_LE16(quad) bswap_16(quad)
99#define CSR1212_LE32_TO_CPU(quad) bswap_32(quad)
100#define CSR1212_CPU_TO_LE32(quad) bswap_32(quad)
101#define CSR1212_LE64_TO_CPU(quad) bswap_64(quad)
102#define CSR1212_CPU_TO_LE64(quad) bswap_64(quad)
103#endif
104
105#include <errno.h>
106#define CSR1212_SUCCESS (0)
107#define CSR1212_EINVAL (EINVAL)
108#define CSR1212_ENOMEM (ENOMEM)
109#define CSR1212_ENOENT (ENOENT)
110#define CSR1212_EIO (EIO)
111#define CSR1212_EBUSY (EBUSY)
112
113#endif
114
115
116#define CSR1212_KV_VAL_MASK 0xffffff
117#define CSR1212_KV_KEY_SHIFT 24
118#define CSR1212_KV_KEY_TYPE_SHIFT 6
119#define CSR1212_KV_KEY_ID_MASK 0x3f
120#define CSR1212_KV_KEY_TYPE_MASK 0x3 /* After shift */
121
122
123/* CSR 1212 key types */
124#define CSR1212_KV_TYPE_IMMEDIATE 0
125#define CSR1212_KV_TYPE_CSR_OFFSET 1
126#define CSR1212_KV_TYPE_LEAF 2
127#define CSR1212_KV_TYPE_DIRECTORY 3
128
129
130/* CSR 1212 key ids */
131#define CSR1212_KV_ID_DESCRIPTOR 0x01
132#define CSR1212_KV_ID_BUS_DEPENDENT_INFO 0x02
133#define CSR1212_KV_ID_VENDOR 0x03
134#define CSR1212_KV_ID_HARDWARE_VERSION 0x04
135#define CSR1212_KV_ID_MODULE 0x07
136#define CSR1212_KV_ID_NODE_CAPABILITIES 0x0C
137#define CSR1212_KV_ID_EUI_64 0x0D
138#define CSR1212_KV_ID_UNIT 0x11
139#define CSR1212_KV_ID_SPECIFIER_ID 0x12
140#define CSR1212_KV_ID_VERSION 0x13
141#define CSR1212_KV_ID_DEPENDENT_INFO 0x14
142#define CSR1212_KV_ID_UNIT_LOCATION 0x15
143#define CSR1212_KV_ID_MODEL 0x17
144#define CSR1212_KV_ID_INSTANCE 0x18
145#define CSR1212_KV_ID_KEYWORD 0x19
146#define CSR1212_KV_ID_FEATURE 0x1A
147#define CSR1212_KV_ID_EXTENDED_ROM 0x1B
148#define CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID 0x1C
149#define CSR1212_KV_ID_EXTENDED_KEY 0x1D
150#define CSR1212_KV_ID_EXTENDED_DATA 0x1E
151#define CSR1212_KV_ID_MODIFIABLE_DESCRIPTOR 0x1F
152#define CSR1212_KV_ID_DIRECTORY_ID 0x20
153#define CSR1212_KV_ID_REVISION 0x21
154
155
156/* IEEE 1212 Address space map */
157#define CSR1212_ALL_SPACE_BASE (0x000000000000ULL)
158#define CSR1212_ALL_SPACE_SIZE (1ULL << 48)
159#define CSR1212_ALL_SPACE_END (CSR1212_ALL_SPACE_BASE + CSR1212_ALL_SPACE_SIZE)
160
161#define CSR1212_MEMORY_SPACE_BASE (0x000000000000ULL)
162#define CSR1212_MEMORY_SPACE_SIZE ((256ULL * (1ULL << 40)) - (512ULL * (1ULL << 20)))
163#define CSR1212_MEMORY_SPACE_END (CSR1212_MEMORY_SPACE_BASE + CSR1212_MEMORY_SPACE_SIZE)
164
165#define CSR1212_PRIVATE_SPACE_BASE (0xffffe0000000ULL)
166#define CSR1212_PRIVATE_SPACE_SIZE (256ULL * (1ULL << 20))
167#define CSR1212_PRIVATE_SPACE_END (CSR1212_PRIVATE_SPACE_BASE + CSR1212_PRIVATE_SPACE_SIZE)
168
169#define CSR1212_REGISTER_SPACE_BASE (0xfffff0000000ULL)
170#define CSR1212_REGISTER_SPACE_SIZE (256ULL * (1ULL << 20))
171#define CSR1212_REGISTER_SPACE_END (CSR1212_REGISTER_SPACE_BASE + CSR1212_REGISTER_SPACE_SIZE)
172
173#define CSR1212_CSR_ARCH_REG_SPACE_BASE (0xfffff0000000ULL)
174#define CSR1212_CSR_ARCH_REG_SPACE_SIZE (512)
175#define CSR1212_CSR_ARCH_REG_SPACE_END (CSR1212_CSR_ARCH_REG_SPACE_BASE + CSR1212_CSR_ARCH_REG_SPACE_SIZE)
176#define CSR1212_CSR_ARCH_REG_SPACE_OFFSET (CSR1212_CSR_ARCH_REG_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE)
177
178#define CSR1212_CSR_BUS_DEP_REG_SPACE_BASE (0xfffff0000200ULL)
179#define CSR1212_CSR_BUS_DEP_REG_SPACE_SIZE (512)
180#define CSR1212_CSR_BUS_DEP_REG_SPACE_END (CSR1212_CSR_BUS_DEP_REG_SPACE_BASE + CSR1212_CSR_BUS_DEP_REG_SPACE_SIZE)
181#define CSR1212_CSR_BUS_DEP_REG_SPACE_OFFSET (CSR1212_CSR_BUS_DEP_REG_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE)
182
183#define CSR1212_CONFIG_ROM_SPACE_BASE (0xfffff0000400ULL)
184#define CSR1212_CONFIG_ROM_SPACE_SIZE (1024)
185#define CSR1212_CONFIG_ROM_SPACE_END (CSR1212_CONFIG_ROM_SPACE_BASE + CSR1212_CONFIG_ROM_SPACE_SIZE)
186#define CSR1212_CONFIG_ROM_SPACE_OFFSET (CSR1212_CONFIG_ROM_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE)
187
188#define CSR1212_UNITS_SPACE_BASE (0xfffff0000800ULL)
189#define CSR1212_UNITS_SPACE_SIZE ((256ULL * (1ULL << 20)) - 2048)
190#define CSR1212_UNITS_SPACE_END (CSR1212_UNITS_SPACE_BASE + CSR1212_UNITS_SPACE_SIZE)
191#define CSR1212_UNITS_SPACE_OFFSET (CSR1212_UNITS_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE)
192
193#define CSR1212_EXTENDED_ROM_SIZE (0x10000 * sizeof(u_int32_t))
194
195
196/* Config ROM image structures */
197struct csr1212_bus_info_block_img {
198 u_int8_t length;
199 u_int8_t crc_length;
200 u_int16_t crc;
201
202 /* Must be last */
203 u_int32_t data[0]; /* older gcc can't handle [] which is standard */
204};
205
206#define CSR1212_KV_KEY(quad) (CSR1212_BE32_TO_CPU(quad) >> CSR1212_KV_KEY_SHIFT)
207#define CSR1212_KV_KEY_TYPE(quad) (CSR1212_KV_KEY(quad) >> CSR1212_KV_KEY_TYPE_SHIFT)
208#define CSR1212_KV_KEY_ID(quad) (CSR1212_KV_KEY(quad) & CSR1212_KV_KEY_ID_MASK)
209#define CSR1212_KV_VAL(quad) (CSR1212_BE32_TO_CPU(quad) & CSR1212_KV_VAL_MASK)
210
211#define CSR1212_SET_KV_KEY(quad, key) ((quad) = \
212 CSR1212_CPU_TO_BE32(CSR1212_KV_VAL(quad) | ((key) << CSR1212_KV_KEY_SHIFT)))
213#define CSR1212_SET_KV_VAL(quad, val) ((quad) = \
214 CSR1212_CPU_TO_BE32((CSR1212_KV_KEY(quad) << CSR1212_KV_KEY_SHIFT) | (val)))
215#define CSR1212_SET_KV_TYPEID(quad, type, id) ((quad) = \
216 CSR1212_CPU_TO_BE32(CSR1212_KV_VAL(quad) | \
217 (((((type) & CSR1212_KV_KEY_TYPE_MASK) << CSR1212_KV_KEY_TYPE_SHIFT) | \
218 ((id) & CSR1212_KV_KEY_ID_MASK)) << CSR1212_KV_KEY_SHIFT)))
219
220typedef u_int32_t csr1212_quad_t;
221
222
223struct csr1212_keyval_img {
224 u_int16_t length;
225 u_int16_t crc;
226
227 /* Must be last */
228 csr1212_quad_t data[0]; /* older gcc can't handle [] which is standard */
229};
230
231struct csr1212_leaf {
232 int len;
233 u_int32_t *data;
234};
235
236struct csr1212_dentry {
237 struct csr1212_dentry *next, *prev;
238 struct csr1212_keyval *kv;
239};
240
241struct csr1212_directory {
242 int len;
243 struct csr1212_dentry *dentries_head, *dentries_tail;
244};
245
246struct csr1212_keyval {
247 struct {
248 u_int8_t type;
249 u_int8_t id;
250 } key;
251 union {
252 u_int32_t immediate;
253 u_int32_t csr_offset;
254 struct csr1212_leaf leaf;
255 struct csr1212_directory directory;
256 } value;
257 struct csr1212_keyval *associate;
258 int refcnt;
259
260 /* used in generating and/or parsing CSR image */
261 struct csr1212_keyval *next, *prev; /* flat list of CSR elements */
262 u_int32_t offset; /* position in CSR from 0xffff f000 0000 */
263 u_int8_t valid; /* flag indicating keyval has valid data*/
264};
265
266
267struct csr1212_cache_region {
268 struct csr1212_cache_region *next, *prev;
269 u_int32_t offset_start; /* inclusive */
270 u_int32_t offset_end; /* exclusive */
271};
272
273struct csr1212_csr_rom_cache {
274 struct csr1212_csr_rom_cache *next, *prev;
275 struct csr1212_cache_region *filled_head, *filled_tail;
276 struct csr1212_keyval *layout_head, *layout_tail;
277 size_t size;
278 u_int32_t offset;
279 struct csr1212_keyval *ext_rom;
280 size_t len;
281
282 /* Must be last */
283 u_int32_t data[0]; /* older gcc can't handle [] which is standard */
284};
285
286struct csr1212_csr {
287 size_t bus_info_len; /* bus info block length in bytes */
288 size_t crc_len; /* crc length in bytes */
289 u_int32_t *bus_info_data; /* bus info data incl bus name and EUI */
290
291 void *private; /* private, bus specific data */
292 struct csr1212_bus_ops *ops;
293
294 struct csr1212_keyval *root_kv;
295
296 int max_rom; /* max bytes readable in Config ROM region */
297
298 /* Items below used for image parsing and generation */
299 struct csr1212_csr_rom_cache *cache_head, *cache_tail;
300};
301
302struct csr1212_bus_ops {
303 /* This function is used by csr1212 to read additional information
304 * from remote nodes when parsing a Config ROM (i.e., read Config ROM
305 * entries located in the Units Space. Must return 0 on success
306 * anything else indicates an error. */
307 int (*bus_read) (struct csr1212_csr *csr, u_int64_t addr,
308 u_int16_t length, void *buffer, void *private);
309
310 /* This function is used by csr1212 to allocate a region in units space
311 * in the event that Config ROM entries don't all fit in the predefined
312 * 1K region. The void *private parameter is private member of struct
313 * csr1212_csr. */
314 u_int64_t (*allocate_addr_range) (u_int64_t size, u_int32_t alignment,
315 void *private);
316
317
318 /* This function is used by csr1212 to release a region in units space
319 * that is no longer needed. */
320 void (*release_addr) (u_int64_t addr, void *private);
321
322 /* This function is used by csr1212 to determine the max read request
323 * supported by a remote node when reading the ConfigROM space. Must
324 * return 0, 1, or 2 per IEEE 1212. */
325 int (*get_max_rom) (u_int32_t *bus_info, void *private);
326};
327
328
329
330
331/* Descriptor Leaf manipulation macros */
332#define CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT 24
333#define CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK 0xffffff
334#define CSR1212_DESCRIPTOR_LEAF_OVERHEAD (1 * sizeof(u_int32_t))
335
336#define CSR1212_DESCRIPTOR_LEAF_TYPE(kv) \
337 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[0]) >> CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT)
338#define CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID(kv) \
339 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[0]) & \
340 CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK)
341#define CSR1212_DESCRIPTOR_LEAF_DATA(kv) \
342 (&((kv)->value.leaf.data[1]))
343
344#define CSR1212_DESCRIPTOR_LEAF_SET_TYPE(kv, type) \
345 ((kv)->value.leaf.data[0] = \
346 CSR1212_CPU_TO_BE32(CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID(kv) | \
347 ((type) << CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT)))
348#define CSR1212_DESCRIPTOR_LEAF_SET_SPECIFIER_ID(kv, spec_id) \
349 ((kv)->value.leaf.data[0] = \
350 CSR1212_CPU_TO_BE32((CSR1212_DESCRIPTOR_LEAF_TYPE(kv) << \
351 CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT) | \
352 ((spec_id) & CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK)))
353
354/* Text Descriptor Leaf manipulation macros */
355#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT 28
356#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_MASK 0xf /* after shift */
357#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT 16
358#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK 0xfff /* after shift */
359#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK 0xffff
360#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_OVERHEAD (1 * sizeof(u_int32_t))
361
362#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH(kv) \
363 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[1]) >> \
364 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT)
365#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET(kv) \
366 ((CSR1212_BE32_TO_CPU((kv)->value.leaf.data[1]) >> \
367 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT) & \
368 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK)
369#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE(kv) \
370 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[1]) & \
371 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK)
372#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_DATA(kv) \
373 (&((kv)->value.leaf.data[2]))
374
375#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_SET_WIDTH(kv, width) \
376 ((kv)->value.leaf.data[1] = \
377 ((kv)->value.leaf.data[1] & \
378 CSR1212_CPU_TO_BE32(~(CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_MASK << \
379 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT))) | \
380 CSR1212_CPU_TO_BE32(((width) & \
381 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_MASK) << \
382 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT))
383#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_SET_CHAR_SET(kv, char_set) \
384 ((kv)->value.leaf.data[1] = \
385 ((kv)->value.leaf.data[1] & \
386 CSR1212_CPU_TO_BE32(~(CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK << \
387 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT))) | \
388 CSR1212_CPU_TO_BE32(((char_set) & \
389 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK) << \
390 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT))
391#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_SET_LANGUAGE(kv, language) \
392 ((kv)->value.leaf.data[1] = \
393 ((kv)->value.leaf.data[1] & \
394 CSR1212_CPU_TO_BE32(~(CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK))) | \
395 CSR1212_CPU_TO_BE32(((language) & \
396 CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK)))
397
398
399/* Icon Descriptor Leaf manipulation macros */
400#define CSR1212_ICON_DESCRIPTOR_LEAF_VERSION_MASK 0xffffff
401#define CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_SHIFT 30
402#define CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_MASK 0x3 /* after shift */
403#define CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_SHIFT 16
404#define CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_MASK 0xf /* after shift */
405#define CSR1212_ICON_DESCRIPTOR_LEAF_LANGUAGE_MASK 0xffff
406#define CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_SHIFT 16
407#define CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_MASK 0xffff /* after shift */
408#define CSR1212_ICON_DESCRIPTOR_LEAF_VSCAN_MASK 0xffff
409#define CSR1212_ICON_DESCRIPTOR_LEAF_OVERHEAD (3 * sizeof(u_int32_t))
410
411#define CSR1212_ICON_DESCRIPTOR_LEAF_VERSION(kv) \
412 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[2]) & \
413 CSR1212_ICON_DESCRIPTOR_LEAF_VERSION_MASK)
414
415#define CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH(kv) \
416 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[3]) >> \
417 CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_SHIFT)
418
419#define CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE(kv) \
420 ((CSR1212_BE32_TO_CPU((kv)->value.leaf.data[3]) >> \
421 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_SHIFT) & \
422 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_MASK)
423
424#define CSR1212_ICON_DESCRIPTOR_LEAF_LANGUAGE(kv) \
425 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[3]) & \
426 CSR1212_ICON_DESCRIPTOR_LEAF_LANGUAGE_MASK)
427
428#define CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN(kv) \
429 ((CSR1212_BE32_TO_CPU((kv)->value.leaf.data[4]) >> \
430 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_HSCAN_SHIFT) & \
431 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_HSCAN_MASK)
432
433#define CSR1212_ICON_DESCRIPTOR_LEAF_VSCAN(kv) \
434 (CSR1212_BE32_TO_CPU((kv)->value.leaf.data[4]) & \
435 CSR1212_ICON_DESCRIPTOR_LEAF_VSCAN_MASK)
436
437#define CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE(kv) \
438 (&((kv)->value.leaf.data[5]))
439
440static inline u_int32_t *CSR1212_ICON_DESCRIPTOR_LEAF_PIXELS(struct csr1212_keyval *kv)
441{
442 static const int pd[4] = { 0, 4, 16, 256 };
443 static const int cs[16] = { 4, 2 };
444 int ps = pd[CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH(kv)];
445
446 return &kv->value.leaf.data[5 +
447 (ps * cs[CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE(kv)]) /
448 sizeof(u_int32_t)];
449}
450
451#define CSR1212_ICON_DESCRIPTOR_LEAF_SET_VERSION(kv, version) \
452 ((kv)->value.leaf.data[2] = \
453 ((kv)->value.leaf.data[2] & \
454 CSR1212_CPU_TO_BE32(~(CSR1212_ICON_DESCRIPTOR_LEAF_VERSION_MASK))) | \
455 CSR1212_CPU_TO_BE32(((version) & \
456 CSR1212_ICON_DESCRIPTOR_LEAF_VERSION_MASK)))
457
458#define CSR1212_ICON_DESCRIPTOR_LEAF_SET_PALETTE_DEPTH(kv, palette_depth) \
459 ((kv)->value.leaf.data[3] = \
460 ((kv)->value.leaf.data[3] & \
461 CSR1212_CPU_TO_BE32(~(CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_MASK << \
462 CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_SHIFT))) | \
463 CSR1212_CPU_TO_BE32(((palette_depth) & \
464 CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_MASK) << \
465 CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE_DEPTH_SHIFT))
466
467#define CSR1212_ICON_DESCRIPTOR_LEAF_SET_COLOR_SPACE(kv, color_space) \
468 ((kv)->value.leaf.data[3] = \
469 ((kv)->value.leaf.data[3] & \
470 CSR1212_CPU_TO_BE32(~(CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_MASK << \
471 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_SHIFT))) | \
472 CSR1212_CPU_TO_BE32(((color_space) & \
473 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_MASK) << \
474 CSR1212_ICON_DESCRIPTOR_LEAF_COLOR_SPACE_SHIFT))
475
476#define CSR1212_ICON_DESCRIPTOR_LEAF_SET_LANGUAGE(kv, language) \
477 ((kv)->value.leaf.data[3] = \
478 ((kv)->value.leaf.data[3] & \
479 CSR1212_CPU_TO_BE32(~(CSR1212_ICON_DESCRIPTOR_LEAF_LANGUAGE_MASK))) | \
480 CSR1212_CPU_TO_BE32(((language) & \
481 CSR1212_ICON_DESCRIPTOR_LEAF_LANGUAGE_MASK)))
482
483#define CSR1212_ICON_DESCRIPTOR_LEAF_SET_HSCAN(kv, hscan) \
484 ((kv)->value.leaf.data[4] = \
485 ((kv)->value.leaf.data[4] & \
486 CSR1212_CPU_TO_BE32(~(CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_MASK << \
487 CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_SHIFT))) | \
488 CSR1212_CPU_TO_BE32(((hscan) & \
489 CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_MASK) << \
490 CSR1212_ICON_DESCRIPTOR_LEAF_HSCAN_SHIFT))
491
492#define CSR1212_ICON_DESCRIPTOR_LEAF_SET_VSCAN(kv, vscan) \
493 ((kv)->value.leaf.data[4] = \
494 (((kv)->value.leaf.data[4] & \
495 CSR1212_CPU_TO_BE32(~CSR1212_ICON_DESCRIPTOR_LEAF_VSCAN_MASK))) | \
496 CSR1212_CPU_TO_BE32(((vscan) & \
497 CSR1212_ICON_DESCRIPTOR_LEAF_VSCAN_MASK)))
498
499
500/* Modifiable Descriptor Leaf manipulation macros */
501#define CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_SHIFT 16
502#define CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_MASK 0xffff
503#define CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_HI_SHIFT 32
504#define CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_HI_MASK 0xffff
505#define CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_LO_MASK 0xffffffffULL
506
507#define CSR1212_MODIFIABLE_DESCRIPTOR_MAX_SIZE(kv) \
508 CSR1212_BE16_TO_CPU((kv)->value.leaf.data[0] >> CSR1212_MODIFIABLE_DESCRIPTOR_MAX_SIZE_SHIFT)
509
510#define CSR1212_MODIFIABLE_DESCRIPTOR_ADDRESS(kv) \
511 (CSR1212_BE16_TO_CPU(((u_int64_t)((kv)->value.leaf.data[0])) << \
512 CSR1212_MODIFIABLE_DESCRIPTOR_ADDR_HI_SHIFT) | \
513 CSR1212_BE32_TO_CPU((kv)->value.leaf.data[1]))
514
515#define CSR1212_MODIFIABLE_DESCRIPTOR_SET_MAX_SIZE(kv, size) \
516 ((kv)->value.leaf.data[0] = \
517 ((kv)->value.leaf.data[0] & \
518 CSR1212_CPU_TO_BE32(~(CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_MASK << \
519 CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_SHIFT))) | \
520 CSR1212_CPU_TO_BE32(((size) & \
521 CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_MASK) << \
522 CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_MAX_SIZE_SHIFT))
523
524#define CSR1212_MODIFIABLE_DESCRIPTOR_SET_ADDRESS_HI(kv, addr) \
525 ((kv)->value.leaf.data[0] = \
526 ((kv)->value.leaf.data[0] & \
527 CSR1212_CPU_TO_BE32(~(CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_HI_MASK))) | \
528 CSR1212_CPU_TO_BE32(((addr) & \
529 CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_HI_MASK)))
530
531#define CSR1212_MODIFIABLE_DESCRIPTOR_SET_ADDRESS_LO(kv, addr) \
532 ((kv)->value.leaf.data[1] = \
533 CSR1212_CPU_TO_BE32(addr & CSR1212_MODIFIABLE_DESCRIPTOR_LEAF_ADDR_LO_MASK))
534
535
536
537/* The following 2 function are for creating new Configuration ROM trees. The
538 * first function is used for both creating local trees and parsing remote
539 * trees. The second function adds pertinent information to local Configuration
540 * ROM trees - namely data for the bus information block. */
541extern struct csr1212_csr *csr1212_create_csr(struct csr1212_bus_ops *ops,
542 size_t bus_info_size,
543 void *private);
544extern void csr1212_init_local_csr(struct csr1212_csr *csr,
545 const u_int32_t *bus_info_data, int max_rom);
546
547
548/* The following function destroys a Configuration ROM tree and release all
549 * memory taken by the tree. */
550extern void csr1212_destroy_csr(struct csr1212_csr *csr);
551
552
553/* The following set of functions are fore creating new keyvals for placement in
554 * a Configuration ROM tree. Code that creates new keyvals with these functions
555 * must release those keyvals with csr1212_release_keyval() when they are no
556 * longer needed. */
557extern struct csr1212_keyval *csr1212_new_immediate(u_int8_t key, u_int32_t value);
558extern struct csr1212_keyval *csr1212_new_leaf(u_int8_t key, const void *data,
559 size_t data_len);
560extern struct csr1212_keyval *csr1212_new_csr_offset(u_int8_t key,
561 u_int32_t csr_offset);
562extern struct csr1212_keyval *csr1212_new_directory(u_int8_t key);
563extern struct csr1212_keyval *csr1212_new_extended_immediate(u_int32_t spec,
564 u_int32_t key,
565 u_int32_t value);
566extern struct csr1212_keyval *csr1212_new_extended_leaf(u_int32_t spec,
567 u_int32_t key,
568 const void *data,
569 size_t data_len);
570extern struct csr1212_keyval *csr1212_new_descriptor_leaf(u_int8_t dtype,
571 u_int32_t specifier_id,
572 const void *data,
573 size_t data_len);
574extern struct csr1212_keyval *csr1212_new_textual_descriptor_leaf(u_int8_t cwidth,
575 u_int16_t cset,
576 u_int16_t language,
577 const void *data,
578 size_t data_len);
579extern struct csr1212_keyval *csr1212_new_string_descriptor_leaf(const char *s);
580extern struct csr1212_keyval *csr1212_new_icon_descriptor_leaf(u_int32_t version,
581 u_int8_t palette_depth,
582 u_int8_t color_space,
583 u_int16_t language,
584 u_int16_t hscan,
585 u_int16_t vscan,
586 u_int32_t *palette,
587 u_int32_t *pixels);
588extern struct csr1212_keyval *csr1212_new_modifiable_descriptor_leaf(u_int16_t max_size,
589 u_int64_t address);
590extern struct csr1212_keyval *csr1212_new_keyword_leaf(int strc,
591 const char *strv[]);
592
593
594/* The following functions manage association between keyvals. Typically,
595 * Descriptor Leaves and Directories will be associated with another keyval and
596 * it is desirable for the Descriptor keyval to be place immediately after the
597 * keyval that it is associated with.*/
598extern int csr1212_associate_keyval(struct csr1212_keyval *kv,
599 struct csr1212_keyval *associate);
600extern void csr1212_disassociate_keyval(struct csr1212_keyval *kv);
601
602
603/* The following functions manage the association of a keyval and directories.
604 * A keyval may be attached to more than one directory. */
605extern int csr1212_attach_keyval_to_directory(struct csr1212_keyval *dir,
606 struct csr1212_keyval *kv);
607extern void csr1212_detach_keyval_from_directory(struct csr1212_keyval *dir,
608 struct csr1212_keyval *kv);
609
610
611/* The following functions create a Configuration ROM image from the tree of
612 * keyvals provided. csr1212_generate_csr_image() creates a complete image in
613 * the list of caches available via csr->cache_head. The other functions are
614 * provided should there be a need to create a flat image without restrictions
615 * placed by IEEE 1212. */
616extern struct csr1212_keyval *csr1212_generate_positions(struct csr1212_csr_rom_cache *cache,
617 struct csr1212_keyval *start_kv,
618 int start_pos);
619extern size_t csr1212_generate_layout_order(struct csr1212_keyval *kv);
620extern void csr1212_fill_cache(struct csr1212_csr_rom_cache *cache);
621extern int csr1212_generate_csr_image(struct csr1212_csr *csr);
622
623
624/* This is a convience function for reading a block of data out of one of the
625 * caches in the csr->cache_head list. */
626extern int csr1212_read(struct csr1212_csr *csr, u_int32_t offset, void *buffer,
627 u_int32_t len);
628
629
630/* The following functions are in place for parsing Configuration ROM images.
631 * csr1212_parse_keyval() is used should there be a need to directly parse a
632 * Configuration ROM directly. */
633extern int csr1212_parse_keyval(struct csr1212_keyval *kv,
634 struct csr1212_csr_rom_cache *cache);
635extern int csr1212_parse_csr(struct csr1212_csr *csr);
636
637/* These are internal functions referenced by inline functions below. */
638extern int _csr1212_read_keyval(struct csr1212_csr *csr, struct csr1212_keyval *kv);
639extern void _csr1212_destroy_keyval(struct csr1212_keyval *kv);
640
641
642/* This function allocates a new cache which may be used for either parsing or
643 * generating sub-sets of Configuration ROM images. */
644static inline struct csr1212_csr_rom_cache *csr1212_rom_cache_malloc(u_int32_t offset,
645 size_t size)
646{
647 struct csr1212_csr_rom_cache *cache;
648
649 cache = CSR1212_MALLOC(sizeof(struct csr1212_csr_rom_cache) + size);
650 if (!cache)
651 return NULL;
652
653 cache->next = NULL;
654 cache->prev = NULL;
655 cache->filled_head = NULL;
656 cache->filled_tail = NULL;
657 cache->layout_head = NULL;
658 cache->layout_tail = NULL;
659 cache->offset = offset;
660 cache->size = size;
661 cache->ext_rom = NULL;
662
663 return cache;
664}
665
666
667/* This function ensures that a keyval contains data when referencing a keyval
668 * created by parsing a Configuration ROM. */
669static inline struct csr1212_keyval *csr1212_get_keyval(struct csr1212_csr *csr,
670 struct csr1212_keyval *kv)
671{
672 if (!kv)
673 return NULL;
674 if (!kv->valid)
675 if (_csr1212_read_keyval(csr, kv) != CSR1212_SUCCESS)
676 return NULL;
677 return kv;
678}
679
680
681/* This function increments the reference count for a keyval should there be a
682 * need for code to retain a keyval that has been parsed. */
683static inline void csr1212_keep_keyval(struct csr1212_keyval *kv)
684{
685 kv->refcnt++;
686}
687
688
689/* This function decrements a keyval's reference count and will destroy the
690 * keyval when there are no more users of the keyval. This should be called by
691 * any code that calls csr1212_keep_keyval() or any of the keyval creation
692 * routines csr1212_new_*(). */
693static inline void csr1212_release_keyval(struct csr1212_keyval *kv)
694{
695 if (kv->refcnt > 1)
696 kv->refcnt--;
697 else
698 _csr1212_destroy_keyval(kv);
699}
700
701
702/*
703 * This macro allows for looping over the keyval entries in a directory and it
704 * ensures that keyvals from remote ConfigROMs are parsed properly.
705 *
706 * _csr is a struct csr1212_csr * that points to CSR associated with dir.
707 * _kv is a struct csr1212_keyval * that'll point to the current keyval (loop index).
708 * _dir is a struct csr1212_keyval * that points to the directory to be looped.
709 * _pos is a struct csr1212_dentry * that is used internally for indexing.
710 *
711 * kv will be NULL upon exit of the loop.
712 */
713#define csr1212_for_each_dir_entry(_csr, _kv, _dir, _pos) \
714 for (csr1212_get_keyval((_csr), (_dir)), \
715 _pos = (_dir)->value.directory.dentries_head, \
716 _kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : NULL; \
717 (_kv) && (_pos); \
718 (_kv->associate == NULL) ? \
719 ((_pos = _pos->next), \
720 (_kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : \
721 NULL)) : \
722 (_kv = csr1212_get_keyval((_csr), _kv->associate)))
723
724
725
726#endif /* __CSR1212_H__ */
Linux kernel - Deliverables
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