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Diffstat (limited to 'drivers/ieee1394/csr1212.h')
| -rw-r--r-- | drivers/ieee1394/csr1212.h | 383 |
1 files changed, 0 insertions, 383 deletions
diff --git a/drivers/ieee1394/csr1212.h b/drivers/ieee1394/csr1212.h deleted file mode 100644 index a892d922dbc..00000000000 --- a/drivers/ieee1394/csr1212.h +++ /dev/null @@ -1,383 +0,0 @@ -/* - * csr1212.h -- IEEE 1212 Control and Status Register support for Linux - * - * Copyright (C) 2003 Francois Retief <fgretief@sun.ac.za> - * Steve Kinneberg <kinnebergsteve@acmsystems.com> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO - * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __CSR1212_H__ -#define __CSR1212_H__ - -#include <linux/types.h> -#include <linux/slab.h> -#include <asm/atomic.h> - -#define CSR1212_MALLOC(size) kmalloc((size), GFP_KERNEL) -#define CSR1212_FREE(ptr) kfree(ptr) - -#define CSR1212_SUCCESS (0) - - -/* CSR 1212 key types */ -#define CSR1212_KV_TYPE_IMMEDIATE 0 -#define CSR1212_KV_TYPE_CSR_OFFSET 1 -#define CSR1212_KV_TYPE_LEAF 2 -#define CSR1212_KV_TYPE_DIRECTORY 3 - - -/* CSR 1212 key ids */ -#define CSR1212_KV_ID_DESCRIPTOR 0x01 -#define CSR1212_KV_ID_BUS_DEPENDENT_INFO 0x02 -#define CSR1212_KV_ID_VENDOR 0x03 -#define CSR1212_KV_ID_HARDWARE_VERSION 0x04 -#define CSR1212_KV_ID_MODULE 0x07 -#define CSR1212_KV_ID_NODE_CAPABILITIES 0x0C -#define CSR1212_KV_ID_EUI_64 0x0D -#define CSR1212_KV_ID_UNIT 0x11 -#define CSR1212_KV_ID_SPECIFIER_ID 0x12 -#define CSR1212_KV_ID_VERSION 0x13 -#define CSR1212_KV_ID_DEPENDENT_INFO 0x14 -#define CSR1212_KV_ID_UNIT_LOCATION 0x15 -#define CSR1212_KV_ID_MODEL 0x17 -#define CSR1212_KV_ID_INSTANCE 0x18 -#define CSR1212_KV_ID_KEYWORD 0x19 -#define CSR1212_KV_ID_FEATURE 0x1A -#define CSR1212_KV_ID_EXTENDED_ROM 0x1B -#define CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID 0x1C -#define CSR1212_KV_ID_EXTENDED_KEY 0x1D -#define CSR1212_KV_ID_EXTENDED_DATA 0x1E -#define CSR1212_KV_ID_MODIFIABLE_DESCRIPTOR 0x1F -#define CSR1212_KV_ID_DIRECTORY_ID 0x20 -#define CSR1212_KV_ID_REVISION 0x21 - - -/* IEEE 1212 Address space map */ -#define CSR1212_ALL_SPACE_BASE (0x000000000000ULL) -#define CSR1212_ALL_SPACE_SIZE (1ULL << 48) -#define CSR1212_ALL_SPACE_END (CSR1212_ALL_SPACE_BASE + CSR1212_ALL_SPACE_SIZE) - -#define CSR1212_MEMORY_SPACE_BASE (0x000000000000ULL) -#define CSR1212_MEMORY_SPACE_SIZE ((256ULL * (1ULL << 40)) - (512ULL * (1ULL << 20))) -#define CSR1212_MEMORY_SPACE_END (CSR1212_MEMORY_SPACE_BASE + CSR1212_MEMORY_SPACE_SIZE) - -#define CSR1212_PRIVATE_SPACE_BASE (0xffffe0000000ULL) -#define CSR1212_PRIVATE_SPACE_SIZE (256ULL * (1ULL << 20)) -#define CSR1212_PRIVATE_SPACE_END (CSR1212_PRIVATE_SPACE_BASE + CSR1212_PRIVATE_SPACE_SIZE) - -#define CSR1212_REGISTER_SPACE_BASE (0xfffff0000000ULL) -#define CSR1212_REGISTER_SPACE_SIZE (256ULL * (1ULL << 20)) -#define CSR1212_REGISTER_SPACE_END (CSR1212_REGISTER_SPACE_BASE + CSR1212_REGISTER_SPACE_SIZE) - -#define CSR1212_CSR_ARCH_REG_SPACE_BASE (0xfffff0000000ULL) -#define CSR1212_CSR_ARCH_REG_SPACE_SIZE (512) -#define CSR1212_CSR_ARCH_REG_SPACE_END (CSR1212_CSR_ARCH_REG_SPACE_BASE + CSR1212_CSR_ARCH_REG_SPACE_SIZE) -#define CSR1212_CSR_ARCH_REG_SPACE_OFFSET (CSR1212_CSR_ARCH_REG_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE) - -#define CSR1212_CSR_BUS_DEP_REG_SPACE_BASE (0xfffff0000200ULL) -#define CSR1212_CSR_BUS_DEP_REG_SPACE_SIZE (512) -#define CSR1212_CSR_BUS_DEP_REG_SPACE_END (CSR1212_CSR_BUS_DEP_REG_SPACE_BASE + CSR1212_CSR_BUS_DEP_REG_SPACE_SIZE) -#define CSR1212_CSR_BUS_DEP_REG_SPACE_OFFSET (CSR1212_CSR_BUS_DEP_REG_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE) - -#define CSR1212_CONFIG_ROM_SPACE_BASE (0xfffff0000400ULL) -#define CSR1212_CONFIG_ROM_SPACE_SIZE (1024) -#define CSR1212_CONFIG_ROM_SPACE_END (CSR1212_CONFIG_ROM_SPACE_BASE + CSR1212_CONFIG_ROM_SPACE_SIZE) -#define CSR1212_CONFIG_ROM_SPACE_OFFSET (CSR1212_CONFIG_ROM_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE) - -#define CSR1212_UNITS_SPACE_BASE (0xfffff0000800ULL) -#define CSR1212_UNITS_SPACE_SIZE ((256ULL * (1ULL << 20)) - 2048) -#define CSR1212_UNITS_SPACE_END (CSR1212_UNITS_SPACE_BASE + CSR1212_UNITS_SPACE_SIZE) -#define CSR1212_UNITS_SPACE_OFFSET (CSR1212_UNITS_SPACE_BASE - CSR1212_REGISTER_SPACE_BASE) - -#define CSR1212_INVALID_ADDR_SPACE -1 - - -/* Config ROM image structures */ -struct csr1212_bus_info_block_img { - u8 length; - u8 crc_length; - u16 crc; - - /* Must be last */ - u32 data[0]; /* older gcc can't handle [] which is standard */ -}; - -struct csr1212_leaf { - int len; - u32 *data; -}; - -struct csr1212_dentry { - struct csr1212_dentry *next, *prev; - struct csr1212_keyval *kv; -}; - -struct csr1212_directory { - int len; - struct csr1212_dentry *dentries_head, *dentries_tail; -}; - -struct csr1212_keyval { - struct { - u8 type; - u8 id; - } key; - union { - u32 immediate; - u32 csr_offset; - struct csr1212_leaf leaf; - struct csr1212_directory directory; - } value; - struct csr1212_keyval *associate; - atomic_t refcnt; - - /* used in generating and/or parsing CSR image */ - struct csr1212_keyval *next, *prev; /* flat list of CSR elements */ - u32 offset; /* position in CSR from 0xffff f000 0000 */ - u8 valid; /* flag indicating keyval has valid data*/ -}; - - -struct csr1212_cache_region { - struct csr1212_cache_region *next, *prev; - u32 offset_start; /* inclusive */ - u32 offset_end; /* exclusive */ -}; - -struct csr1212_csr_rom_cache { - struct csr1212_csr_rom_cache *next, *prev; - struct csr1212_cache_region *filled_head, *filled_tail; - struct csr1212_keyval *layout_head, *layout_tail; - size_t size; - u32 offset; - struct csr1212_keyval *ext_rom; - size_t len; - - /* Must be last */ - u32 data[0]; /* older gcc can't handle [] which is standard */ -}; - -struct csr1212_csr { - size_t bus_info_len; /* bus info block length in bytes */ - size_t crc_len; /* crc length in bytes */ - __be32 *bus_info_data; /* bus info data incl bus name and EUI */ - - void *private; /* private, bus specific data */ - struct csr1212_bus_ops *ops; - - struct csr1212_keyval *root_kv; - - int max_rom; /* max bytes readable in Config ROM region */ - - /* Items below used for image parsing and generation */ - struct csr1212_csr_rom_cache *cache_head, *cache_tail; -}; - -struct csr1212_bus_ops { - /* This function is used by csr1212 to read additional information - * from remote nodes when parsing a Config ROM (i.e., read Config ROM - * entries located in the Units Space. Must return 0 on success - * anything else indicates an error. */ - int (*bus_read) (struct csr1212_csr *csr, u64 addr, - void *buffer, void *private); - - /* This function is used by csr1212 to allocate a region in units space - * in the event that Config ROM entries don't all fit in the predefined - * 1K region. The void *private parameter is private member of struct - * csr1212_csr. */ - u64 (*allocate_addr_range) (u64 size, u32 alignment, void *private); - - /* This function is used by csr1212 to release a region in units space - * that is no longer needed. */ - void (*release_addr) (u64 addr, void *private); -}; - - -/* Descriptor Leaf manipulation macros */ -#define CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT 24 -#define CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK 0xffffff -#define CSR1212_DESCRIPTOR_LEAF_OVERHEAD (1 * sizeof(u32)) - -#define CSR1212_DESCRIPTOR_LEAF_TYPE(kv) \ - (be32_to_cpu((kv)->value.leaf.data[0]) >> \ - CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT) -#define CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID(kv) \ - (be32_to_cpu((kv)->value.leaf.data[0]) & \ - CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK) - - -/* Text Descriptor Leaf manipulation macros */ -#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT 28 -#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_MASK 0xf /* after shift */ -#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT 16 -#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK 0xfff /* after shift */ -#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK 0xffff -#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_OVERHEAD (1 * sizeof(u32)) - -#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH(kv) \ - (be32_to_cpu((kv)->value.leaf.data[1]) >> \ - CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT) -#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET(kv) \ - ((be32_to_cpu((kv)->value.leaf.data[1]) >> \ - CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT) & \ - CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK) -#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE(kv) \ - (be32_to_cpu((kv)->value.leaf.data[1]) & \ - CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK) -#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_DATA(kv) \ - (&((kv)->value.leaf.data[2])) - - -/* The following 2 function are for creating new Configuration ROM trees. The - * first function is used for both creating local trees and parsing remote - * trees. The second function adds pertinent information to local Configuration - * ROM trees - namely data for the bus information block. */ -extern struct csr1212_csr *csr1212_create_csr(struct csr1212_bus_ops *ops, - size_t bus_info_size, - void *private); -extern void csr1212_init_local_csr(struct csr1212_csr *csr, - const u32 *bus_info_data, int max_rom); - - -/* Destroy a Configuration ROM tree and release all memory taken by the tree. */ -extern void csr1212_destroy_csr(struct csr1212_csr *csr); - - -/* The following set of functions are fore creating new keyvals for placement in - * a Configuration ROM tree. Code that creates new keyvals with these functions - * must release those keyvals with csr1212_release_keyval() when they are no - * longer needed. */ -extern struct csr1212_keyval *csr1212_new_immediate(u8 key, u32 value); -extern struct csr1212_keyval *csr1212_new_directory(u8 key); -extern struct csr1212_keyval *csr1212_new_string_descriptor_leaf(const char *s); - - -/* The following function manages association between keyvals. Typically, - * Descriptor Leaves and Directories will be associated with another keyval and - * it is desirable for the Descriptor keyval to be place immediately after the - * keyval that it is associated with. - * Take care with subsequent ROM modifications: There is no function to remove - * previously specified associations. - */ -extern void csr1212_associate_keyval(struct csr1212_keyval *kv, - struct csr1212_keyval *associate); - - -/* The following functions manage the association of a keyval and directories. - * A keyval may be attached to more than one directory. */ -extern int csr1212_attach_keyval_to_directory(struct csr1212_keyval *dir, - struct csr1212_keyval *kv); -extern void csr1212_detach_keyval_from_directory(struct csr1212_keyval *dir, - struct csr1212_keyval *kv); - - -/* Creates a complete Configuration ROM image in the list of caches available - * via csr->cache_head. */ -extern int csr1212_generate_csr_image(struct csr1212_csr *csr); - - -/* This is a convience function for reading a block of data out of one of the - * caches in the csr->cache_head list. */ -extern int csr1212_read(struct csr1212_csr *csr, u32 offset, void *buffer, - u32 len); - - -/* The following functions are in place for parsing Configuration ROM images. - * csr1212_parse_keyval() is used should there be a need to directly parse a - * Configuration ROM directly. */ -extern int csr1212_parse_keyval(struct csr1212_keyval *kv, - struct csr1212_csr_rom_cache *cache); -extern int csr1212_parse_csr(struct csr1212_csr *csr); - - -/* This function allocates a new cache which may be used for either parsing or - * generating sub-sets of Configuration ROM images. */ -static inline struct csr1212_csr_rom_cache * -csr1212_rom_cache_malloc(u32 offset, size_t size) -{ - struct csr1212_csr_rom_cache *cache; - - cache = CSR1212_MALLOC(sizeof(*cache) + size); - if (!cache) - return NULL; - - cache->next = NULL; - cache->prev = NULL; - cache->filled_head = NULL; - cache->filled_tail = NULL; - cache->layout_head = NULL; - cache->layout_tail = NULL; - cache->offset = offset; - cache->size = size; - cache->ext_rom = NULL; - - return cache; -} - - -/* This function ensures that a keyval contains data when referencing a keyval - * created by parsing a Configuration ROM. */ -extern struct csr1212_keyval * -csr1212_get_keyval(struct csr1212_csr *csr, struct csr1212_keyval *kv); - - -/* This function increments the reference count for a keyval should there be a - * need for code to retain a keyval that has been parsed. */ -static inline void csr1212_keep_keyval(struct csr1212_keyval *kv) -{ - atomic_inc(&kv->refcnt); - smp_mb__after_atomic_inc(); -} - - -/* This function decrements a keyval's reference count and will destroy the - * keyval when there are no more users of the keyval. This should be called by - * any code that calls csr1212_keep_keyval() or any of the keyval creation - * routines csr1212_new_*(). */ -extern void csr1212_release_keyval(struct csr1212_keyval *kv); - - -/* - * This macro allows for looping over the keyval entries in a directory and it - * ensures that keyvals from remote ConfigROMs are parsed properly. - * - * struct csr1212_csr *_csr points to the CSR associated with dir. - * struct csr1212_keyval *_kv points to the current keyval (loop index). - * struct csr1212_keyval *_dir points to the directory to be looped. - * struct csr1212_dentry *_pos is used internally for indexing. - * - * kv will be NULL upon exit of the loop. - */ -#define csr1212_for_each_dir_entry(_csr, _kv, _dir, _pos) \ - for (csr1212_get_keyval((_csr), (_dir)), \ - _pos = (_dir)->value.directory.dentries_head, \ - _kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : NULL;\ - (_kv) && (_pos); \ - (_kv->associate == NULL) ? \ - ((_pos = _pos->next), (_kv = (_pos) ? \ - csr1212_get_keyval((_csr), _pos->kv) : \ - NULL)) : \ - (_kv = csr1212_get_keyval((_csr), _kv->associate))) - -#endif /* __CSR1212_H__ */ |