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      1 /*	$NetBSD: ieee1212reg.h,v 1.12 2021/10/13 21:49:10 andvar Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _DEV_STD_IEEE1212REG_H_
     33 #define _DEV_STD_IEEE1212REG_H_
     34 
     35 /* This file contains definitions from ISO/IEC 13213 or ANSI/IEEE Std 1212
     36  *	Information technology
     37  *		Microprocessor systems
     38  *			Control and Status Registers (CSR)
     39  *			Architecture for microcomputer buses
     40  *	First edition 1994-10-05
     41  */
     42 
     43 /* Lock transaction codes (Table 5)
     44  */
     45 #define	P1212_XTCODE_RESERVED_0		0
     46 #define	P1212_XTCODE_MASK_SWAP		1
     47 #define	P1212_XTCODE_COMPARE_SWAP	2
     48 #define	P1212_XTCODE_FETCH_ADD		3
     49 #define	P1212_XTCODE_LITTLE_ADD		4
     50 #define	P1212_XTCODE_BOUNDED_ADD	5
     51 #define	P1212_XTCODE_WRAP_ADD		6
     52 #define	P1212_XTCODE_VENDOR_DEPENDENT	7
     53 
     54 /*	Header:		Rom Format (1 Quadlet)
     55  *	Bus Info Block:	<info-length> Quadlets
     56  *	Root Directory
     57  *	Unit Directory
     58  *	Root & Unit Leaves
     59  *	Vendor Dependent Information
     60  */
     61 /* ROM Formats
     62  *	0x00-0x000000		Initializing
     63  *	0x01-0xzzyyxx		Minimal (zz-yy-xx is an OUI)
     64  *	0xii-0xcc-0xllll	General (ii is info-length,
     65  *				cc is crc-length, llll is length)
     66  */
     67 
     68 #define	P1212_ROMFMT_INIT			0x00
     69 #define	P1212_ROMFMT_MINIMAL			0x01
     70 
     71 /*	uint32_t P1212_ROMFMT_MK_INIT(void)
     72  */
     73 #define	P1212_ROMFMT_MK_INIT()			0x00000000
     74 
     75 /*	uint32_t P1212_ROMFMT_MK_MINIMAL(const uint8_t *oui);
     76  */
     77 #define	P1212_ROMFMT_MK_MINIMAL(oui) \
     78 	((P1212_ROMFMT_MINIMAL << 24) \
     79 	 | ((oui[0]) << 16) \
     80 	 | ((oui[1]) <<  8) \
     81 	 | ((oui[2]) <<  0))
     82 
     83 /*	uint32_t P1212_ROMFMT_MK_GENERAL(size_t info_len, size_t crc_len,
     84  *			uint16_t crc);
     85  */
     86 #define	P1212_ROMFMT_MK_GENERAL(info_len, crc_len, crc_value) \
     87 	(((info_len) << 24) \
     88 	 | ((crc_len) << 16) \
     89 	 | ((crc_value) << 0))
     90 
     91 /*	unsigned P1212_ROMFMT_GET_FMT(uint32_t);
     92  */
     93 #define	P1212_ROMFMT_GET_FMT(quadlet)	(((quadlet) >> 24) & 0xff)
     94 
     95 /*	void P1212_ROMFMT_GET_OUI(uint32_t quadlet, uint8_t *oui);
     96  */
     97 #define	P1212_ROMTFMT_GET_OUI(quadlet, oui) do { \
     98 	(oui)[0] = ((quadlet) >> 16) & 0xff; \
     99 	(oui)[1] = ((quadlet) >>  8) & 0xff; \
    100 	(oui)[2] = ((quadlet) >>  0) & 0xff; \
    101    } while (0)
    102 
    103 /*	size_t P1212_ROMGET_GET_INFOLEN(uint32_t quadlet);
    104  */
    105 #define	P1212_ROMFMT_GET_INFOLEN(quadlet)	(((quadlet) >> 24) & 0xff)
    106 
    107 /*	size_t P1212_ROMGET_GET_CRCLEN(uint32_t quadlet);
    108  */
    109 #define	P1212_ROMFMT_GET_CRCLEN(quadlet)	(((quadlet) >> 16) & 0xff)
    110 
    111 /*	size_t P1212_ROMGET_GET_CRC(uint32_t quadlet);
    112  */
    113 #define	P1212_ROMFMT_GET_CRC(quadlet)		((uint16_t)(quadlet))
    114 
    115 /*      uint8_t      P1212_DIRENT_GET_KEY(uint32_t quadlet);
    116  */
    117 #define P1212_DIRENT_GET_KEY(quadlet)           (((quadlet) >> 24) & 0xff)
    118 
    119 /*	unsigned int P1212_DIRENT_GET_KEYTYPE(uint32_t quadlet);
    120  */
    121 #define	P1212_DIRENT_GET_KEYTYPE(quadlet)	(((quadlet) >> 30) & 0x03)
    122 
    123 /*	unsigned int P1212_DIRENT_GET_KEYVALUE(uint32_t quadlet);
    124  */
    125 #define	P1212_DIRENT_GET_KEYVALUE(quadlet)	(((quadlet) >> 24) & 0x3f)
    126 
    127 /*	unsigned int P1212_DIRENT_GET_OFFSET(uint32_t quadlet);
    128  */
    129 #define	P1212_DIRENT_GET_OFFSET(quadlet)	((quadlet) & 0xffffff)
    130 
    131 /*	unsigned int P1212_DIRENT_GET_VALUE(uint32_t quadlet);
    132  */
    133 #define	P1212_DIRENT_GET_VALUE(quadlet)		((quadlet) & 0xffffff)
    134 
    135 /*      u_int16_t P1212_DIRENT_GET_LEN(quadlet);
    136  */
    137 #define P1212_DIRENT_GET_LEN(quadlet)           (((quadlet) >> 16) & 0xffff)
    138 
    139 /*      u_int16_t P1212_DIRENT_GET_CRC(quadlet);
    140  */
    141 #define P1212_DIRENT_GET_CRC(quadlet)           ((uint16_t)(quadlet))
    142 
    143 /* Key Types are stored in bits 31-30 of a directory entry.
    144  */
    145 
    146 #define	P1212_KEYTYPE_Immediate			0x00
    147 #define	P1212_KEYTYPE_Offset			0x01
    148 #define	P1212_KEYTYPE_Leaf			0x02
    149 #define	P1212_KEYTYPE_Directory			0x03
    150 
    151 /* Key Values are stored in bits 29-24 of a directory entry.
    152  */
    153 #define	P1212_KEYVALUE_Textual_Descriptor	0x01	/* leaf | directory */
    154 #define	P1212_KEYVALUE_Bus_Dependent_Info	0x02	/* leaf | directory */
    155 #define	P1212_KEYVALUE_Module_Vendor_Id		0x03	/* immediate */
    156 #define	P1212_KEYVALUE_Module_Hw_Version	0x04	/* immediate */
    157 #define	P1212_KEYVALUE_Module_Spec_Id		0x05	/* immediate */
    158 #define	P1212_KEYVALUE_Module_Sw_Version	0x06	/* immediate */
    159 #define	P1212_KEYVALUE_Module_Dependent_Info	0x07	/* leaf | directory */
    160 #define	P1212_KEYVALUE_Node_Vendor_Id		0x08	/* immediate */
    161 #define	P1212_KEYVALUE_Node_Hw_Version		0x09	/* immediate */
    162 #define	P1212_KEYVALUE_Node_Spec_Id		0x0a	/* immediate */
    163 #define	P1212_KEYVALUE_Node_Sw_Version		0x0b	/* immediate */
    164 #define	P1212_KEYVALUE_Node_Capabilities	0x0c	/* immediate */
    165 #define	P1212_KEYVALUE_Node_Unique_Id		0x0d	/* leaf */
    166 #define	P1212_KEYVALUE_Node_Units_Extent	0x0e	/* immediate | offset */
    167 #define	P1212_KEYVALUE_Node_Memory_Extent	0x0f	/* immediate | offset */
    168 #define	P1212_KEYVALUE_Node_Dependent_Info	0x10	/* leaf | directory */
    169 #define	P1212_KEYVALUE_Unit_Directory		0x11	/* directory */
    170 #define	P1212_KEYVALUE_Unit_Spec_Id		0x12	/* immediate */
    171 #define	P1212_KEYVALUE_Unit_Sw_Version		0x13	/* immediate */
    172 #define	P1212_KEYVALUE_Unit_Dependent_Info	0x14	/* leaf | directory */
    173 #define	P1212_KEYVALUE_Unit_Location		0x15	/* leaf */
    174 #define	P1212_KEYVALUE_Unit_Poll_Mask		0x16	/* immediate */
    175 
    176 /*
    177  * Items not in original p1212 standard but are in proposed drafts and in use
    178  * already in some roms.
    179  */
    180 
    181 #define P1212_KEYVALUE_Model                    0x17    /* immediate */
    182 #define P1212_KEYVALUR_Instance_Directory       0x18    /* directory */
    183 #define P1212_KEYVALUE_Keyword                  0x19    /* leaf */
    184 #define P1212_KEYVALUE_Feature_Directory        0x1A    /* directory */
    185 #define P1212_KEYVALUE_Extended_ROM             0x1B    /* leaf */
    186 #define P1212_KEYVALUE_Extended_Key_Spec_Id     0x1C    /* immediate */
    187 #define P1212_KEYVALUE_Extended_Key             0x1D    /* immediate */
    188 #define P1212_KEYVALUE_Extended_Data            0x1E    /* imm|leaf|dir|offset */
    189 #define P1212_KEYVALUE_Modifiable_Descriptor    0x1F    /* leaf */
    190 #define P1212_KEYVALUE_Directory_Id             0x20    /* immediate */
    191 
    192 #define	P1212_KEYTYPE_STRINGS { "Immediate", "Offset", "Leaf", "Directory" }
    193 
    194 #define P1212_KEYVALUE_STRINGS { "Root-Directory", \
    195 	"Textual-Descriptor", "Bus-Dependent-Info", "Module-Vendor-Id", \
    196 	"Module-Hw-Version", "Module-Spec-Id", "Module-Sw-Version", \
    197 	"Module-Dependent-Info", "Node-Vendor-Id", "Node-Hw_Version", \
    198 	"Node-Spec-Id", "Node-Sw-Version", "Node-Capabilities", \
    199 	"Node-Unique-Id", "Node-Units-Extent", "Node-Memory-Extent", \
    200 	"Node-Dependent-Info", "Unit-Directory", "Unit-Spec-Id", \
    201 	"Unit-Sw-Version", "Unit-Dependent-Info", "Unit-Location", \
    202 	"Unit-Poll-Mask", "Model", "Instance-Directory", "Keyword", \
    203         "Feature-Directory", "Extended-ROM", "Extended-Key-Spec-Id", \
    204         "Extended-Key", "Extended-Data", "Modifiable-Descriptor", \
    205         "Directory-Id" }
    206 
    207 /* Leaf nodes look like:
    208  *
    209  *	[0]	0xnnnn-0xcccc		length, crc16
    210  *	[n]
    211  *
    212  * Text leaves look like:
    213  *	[0]	0xnnnn-0xcccc		length, crc16
    214  *	[1]	0xtt-0xiiiiii		specifier type, specifier id
    215  *	[2]	0xllllllll		language id
    216  */
    217 
    218 #define	P1212_TEXT_Min_Leaf_Length 0x3
    219 #define P1212_TEXT_GET_Spec_Type(quadlet)	(((quadlet) & 0xff000000) >> 24)
    220 #define P1212_TEXT_GET_Spec_Id(quadlet)		((quadlet) & 0xffffff)
    221 
    222 /*
    223  * Directory nodes look like:
    224  *	[0]	0xnnnn-0xcccc		length, crc16
    225  *	[1]	direntry
    226  *	[n]	direntry
    227  */
    228 
    229 /* Some definitions for the p1212_find routines. */
    230 
    231 #define P1212_FIND_SEARCHALL          0x1
    232 #define P1212_FIND_RETURNALL          0x2
    233 
    234 /* Mask definitions for overriding the p1212 standard checks. */
    235 
    236 /*
    237  * XXX: Note that some of these go away if full p1212r support is done as
    238  * a lot of the restrictions were lifted there in what can go where.
    239  */
    240 
    241 
    242 /* Normally dependent info can only be leaf or directory. Allow offsets also */
    243 #define P1212_ALLOW_DEPENDENT_INFO_OFFSET_TYPE	0x1
    244 
    245 /* Same thing applies for immediate types. */
    246 #define P1212_ALLOW_DEPENDENT_INFO_IMMED_TYPE	0x2
    247 #define P1212_ALLOW_VENDOR_DIRECTORY_TYPE	0x4
    248 
    249 #endif	/* _DEV_STD_IEEE1212REG_H_ */
    250