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siopreg.h revision 1.13
      1 /*	$NetBSD: siopreg.h,v 1.13 2002/08/29 16:43:23 bouyer Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2000 Manuel Bouyer.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Manuel Bouyer.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  *
     31  */
     32 
     33 /*
     34  * Devices definitions for Symbios/NCR M53c8xx PCI-SCSI I/O Processors
     35  * Docs available from http://www.symbios.com/
     36  */
     37 
     38 #define SIOP_SCNTL0 	0x00 /* SCSI control 0, R/W */
     39 #define SCNTL0_ARB_MASK	0xc0
     40 #define SCNTL0_SARB	0x00
     41 #define SCNTL0_FARB	0xc0
     42 #define SCNTL0_START	0x20
     43 #define SCNTL0_WATM	0x10
     44 #define SCNTL0_EPC	0x08
     45 #define SCNTL0_AAP	0x02
     46 #define SCNTL0_TRG	0x01
     47 
     48 #define SIOP_SCNTL1 	0x01 /* SCSI control 1, R/W */
     49 #define SCNTL1_EXC	0x80
     50 #define SCNTL1_ADB	0x40
     51 #define SCNTL1_DHP	0x20
     52 #define SCNTL1_CON	0x10
     53 #define SCNTL1_RST	0x08
     54 #define SCNTL1_AESP	0x04
     55 #define SCNTL1_IARB	0x02
     56 #define SCNTL1_SST	0x01
     57 
     58 #define SIOP_SCNTL2 	0x02 /* SCSI control 2, R/W */
     59 #define SCNTL2_SDU	0x80
     60 #define SCNTL2_CHM	0x40	/* 875 only */
     61 #define SCNTL2_SLPMD	0x20	/* 875 only */
     62 #define SCNTL2_SLPHBEN	0x10	/* 875 only */
     63 #define SCNTL2_WSS	0x08	/* 875 only */
     64 #define SCNTL2_VUE0	0x04	/* 875 only */
     65 #define SCNTL2_VUE1	0x02	/* 875 only */
     66 #define SCNTL2_WSR	0x01	/* 875 only */
     67 
     68 #define SIOP_SCNTL3 	0x03 /* SCSI control 3, R/W */
     69 #define SCNTL3_ULTRA	0x80	/* 875 only */
     70 #define SCNTL3_SCF_SHIFT 4
     71 #define SCNTL3_SCF_MASK	0x70
     72 #define SCNTL3_EWS	0x08	/* 875 only */
     73 #define SCNTL3_CCF_SHIFT 0
     74 #define SCNTL3_CCF_MASK	0x07
     75 
     76 /* periods for various SCF values, assume transfer period of 4 */
     77 struct scf_period {
     78 	int clock; /* clock period (ns * 10) */
     79 	int period; /* scsi period, as set in the SDTR message */
     80 	int scf; /* scf value to use */
     81 };
     82 
     83 static const struct scf_period scf_period[] __attribute__((__unused__)) = {
     84 	{250, 25, 1}, /* 10.0 Mhz */
     85 	{250, 37, 2}, /* 6.67 Mhz */
     86 	{250, 50, 3},  /* 5.00 Mhz */
     87 	{250, 75, 4},  /* 3.33 Mhz */
     88 	{125, 12, 1},  /* 20.0 Mhz */
     89 	{125, 18, 2},  /* 13.3 Mhz */
     90 	{125, 25, 3},  /* 10.0 Mhz */
     91 	{125, 37, 4},  /* 6.67 Mhz */
     92 	{125, 50, 5},  /* 5.0 Mhz */
     93 	{ 62, 10, 1},  /* 40.0 Mhz */
     94 	{ 62, 12, 3},  /* 20.0 Mhz */
     95 	{ 62, 18, 4},  /* 13.3 Mhz */
     96 	{ 62, 25, 5},  /* 10.0 Mhz */
     97 };
     98 
     99 static const struct scf_period dt_scf_period[] __attribute__((__unused__)) = {
    100 	{ 62,  9, 1},  /* 80.0 Mhz */
    101 	{ 62, 10, 3},  /* 40.0 Mhz */
    102 	{ 62, 12, 5},  /* 20.0 Mhz */
    103 	{ 62, 18, 6},  /* 13.3 Mhz */
    104 	{ 62, 25, 7},  /* 10.0 Mhz */
    105 };
    106 
    107 #define SIOP_SCID	0x04 /* SCSI chip ID R/W */
    108 #define SCID_RRE	0x40
    109 #define SCID_SRE	0x20
    110 #define SCID_ENCID_SHIFT 0
    111 #define SCID_ENCID_MASK	0x07
    112 
    113 #define SIOP_SXFER	0x05 /* SCSI transfer, R/W */
    114 #define SXFER_TP_SHIFT	 5
    115 #define SXFER_TP_MASK	0xe0
    116 #define SXFER_MO_SHIFT  0
    117 #define SXFER_MO_MASK  0x3f
    118 
    119 #define SIOP_SDID	0x06 /* SCSI destiation ID, R/W */
    120 #define SDID_ENCID_SHIFT 0
    121 #define SDID_ENCID_MASK	0x07
    122 
    123 #define SIOP_GPREG	0x07 /* General purpose, R/W */
    124 #define GPREG_GPIO4	0x10	/* 875 only */
    125 #define GPREG_GPIO3	0x08	/* 875 only */
    126 #define GPREG_GPIO2	0x04	/* 875 only */
    127 #define GPREG_GPIO1	0x02
    128 #define GPREG_GPIO0	0x01
    129 
    130 #define SIOP_SFBR	0x08 /* SCSI first byte received, R/W */
    131 
    132 #define SIOP_SOCL	0x09 /* SCSI output control latch, RW */
    133 
    134 #define SIOP_SSID	0x0A /* SCSI selector ID, RO */
    135 #define SSID_VAL	0x80
    136 #define SSID_ENCID_SHIFT 0
    137 #define SSID_ENCID_MASK 0x0f
    138 
    139 #define SIOP_SBCL	0x0B /* SCSI control line, RO */
    140 
    141 #define SIOP_DSTAT	0x0C /* DMA status, RO */
    142 #define DSTAT_DFE	0x80
    143 #define DSTAT_MDPE	0x40
    144 #define DSTAT_BF	0x20
    145 #define DSTAT_ABRT	0x10
    146 #define DSTAT_SSI	0x08
    147 #define DSTAT_SIR	0x04
    148 #define DSTAT_IID	0x01
    149 
    150 #define SIOP_SSTAT0	0x0D /* STSI status 0, RO */
    151 #define SSTAT0_ILF	0x80
    152 #define SSTAT0_ORF	0x40
    153 #define SSTAT0_OLF	0x20
    154 #define SSTAT0_AIP	0x10
    155 #define SSTAT0_LOA	0x08
    156 #define SSTAT0_WOA	0x04
    157 #define SSTAT0_RST	0x02
    158 #define SSTAT0_SDP	0x01
    159 
    160 #define SIOP_SSTAT1	0x0E /* STSI status 1, RO */
    161 #define SSTAT1_FFO_SHIFT 4
    162 #define SSTAT1_FFO_MASK 0x80
    163 #define SSTAT1_SDPL	0x08
    164 #define SSTAT1_MSG	0x04
    165 #define SSTAT1_CD	0x02
    166 #define SSTAT1_IO	0x01
    167 #define SSTAT1_PHASE_MASK (SSTAT1_IO | SSTAT1_CD | SSTAT1_MSG)
    168 #define SSTAT1_PHASE_DATAOUT	0
    169 #define SSTAT1_PHASE_DATAIN	SSTAT1_IO
    170 #define SSTAT1_PHASE_CMD	SSTAT1_CD
    171 #define SSTAT1_PHASE_STATUS	(SSTAT1_CD | SSTAT1_IO)
    172 #define SSTAT1_PHASE_MSGOUT	(SSTAT1_MSG | SSTAT1_CD)
    173 #define SSTAT1_PHASE_MSGIN	(SSTAT1_MSG | SSTAT1_CD | SSTAT1_IO)
    174 
    175 #define SIOP_SSTAT2	0x0F /* STSI status 2, RO */
    176 #define SSTAT2_ILF1	0x80	/* 875 only */
    177 #define SSTAT2_ORF1	0x40	/* 875 only */
    178 #define SSTAT2_OLF1	0x20	/* 875 only */
    179 #define SSTAT2_FF4	0x10	/* 875 only */
    180 #define SSTAT2_SPL1	0x08	/* 875 only */
    181 #define SSTAT2_DF	0x04	/* 875 only */
    182 #define SSTAT2_LDSC	0x02
    183 #define SSTAT2_SDP1	0x01	/* 875 only */
    184 
    185 #define SIOP_DSA	0x10 /* data struct addr, R/W */
    186 
    187 #define SIOP_ISTAT	0x14 /* IRQ status, R/W */
    188 #define ISTAT_ABRT	0x80
    189 #define ISTAT_SRST	0x40
    190 #define ISTAT_SIGP	0x20
    191 #define ISTAT_SEM	0x10
    192 #define ISTAT_CON	0x08
    193 #define ISTAT_INTF	0x04
    194 #define ISTAT_SIP	0x02
    195 #define ISTAT_DIP	0x01
    196 
    197 #define SIOP_CTEST0	0x18 /* Chip test 0, R/W */
    198 
    199 #define SIOP_CTEST1	0x19 /* Chip test 1, R/W */
    200 
    201 #define SIOP_CTEST2	0x1A /* Chip test 2, R/W */
    202 #define CTEST2_SRTCH	0x04	/* 875 only */
    203 
    204 #define SIOP_CTEST3	0x1B /* Chip test 3, R/W */
    205 #define CTEST3_FLF	0x08
    206 #define CTEST3_CLF	0x04
    207 #define CTEST3_FM	0x02
    208 #define CTEST3_WRIE	0x01
    209 
    210 #define SIOP_TEMP	0x1C /* Temp register (used by CALL/RET), R/W */
    211 
    212 #define SIOP_DFIFO	0x20 /* DMA FIFO */
    213 
    214 #define SIOP_CTEST4	0x21 /* Chip test 4, R/W */
    215 #define CTEST4_BDIS	0x80
    216 #define CTEST_ZMOD	0x40
    217 #define CTEST_ZSD	0x20
    218 #define CTEST_SRTM	0x10
    219 #define CTEST_MPEE	0x08
    220 
    221 #define SIOP_CTEST5	0x22 /* Chip test 5, R/W */
    222 #define CTEST5_ADCK	0x80
    223 #define CTEST5_BBCK	0x40
    224 #define CTEST5_DFS	0x20
    225 #define CTEST5_MASR	0x10
    226 #define CTEST5_DDIR	0x08
    227 #define CTEST5_BOMASK	0x03
    228 
    229 #define SIOP_CTEST6	0x23 /* Chip test 6, R/W */
    230 
    231 #define SIOP_DBC	0x24 /* DMA byte counter, R/W */
    232 
    233 #define SIOP_DCMD	0x27 /* DMA command, R/W */
    234 
    235 #define SIOP_DNAD	0x28 /* DMA next addr, R/W */
    236 
    237 #define SIOP_DSP	0x2C /* DMA scripts pointer, R/W */
    238 
    239 #define SIOP_DSPS	0x30 /* DMA scripts pointer save, R/W */
    240 
    241 #define SIOP_SCRATCHA	0x34 /* scratch register A. R/W */
    242 
    243 #define SIOP_DMODE	0x38 /* DMA mode, R/W */
    244 #define DMODE_BL_SHIFT   6
    245 #define DMODE_BL_MASK	0xC0
    246 #define DMODE_SIOM	0x20
    247 #define DMODE_DIOM	0x10
    248 #define DMODE_ERL	0x08
    249 #define DMODE_ERMP	0x04
    250 #define DMODE_BOF	0x02
    251 #define DMODE_MAN	0x01
    252 
    253 #define SIOP_DIEN	0x39 /* DMA interrupt enable, R/W */
    254 #define DIEN_MDPE	0x40
    255 #define DIEN_BF		0x20
    256 #define DIEN_AVRT	0x10
    257 #define DIEN_SSI	0x08
    258 #define DIEN_SIR	0x04
    259 #define DIEN_IID	0x01
    260 
    261 #define SIOP_SBR	0x3A /* scratch byte register, R/W */
    262 
    263 #define SIOP_DCNTL	0x3B /* DMA control, R/W */
    264 #define DCNTL_CLSE	0x80
    265 #define DCNTL_PFF	0x40
    266 #define DCNTL_PFEN	0x20
    267 #define DCNTL_SSM	0x10
    268 #define DCNTL_IRQM	0x08
    269 #define DCNTL_STD	0x04
    270 #define DCNTL_IRQD	0x02
    271 #define DCNTL_COM	0x01
    272 
    273 #define SIOP_ADDER	0x3C /* adder output sum, RO */
    274 
    275 #define SIOP_SIEN0	0x40 /* SCSI interrupt enable 0, R/W */
    276 #define SIEN0_MA	0x80
    277 #define SIEN0_CMP	0x40
    278 #define SIEN0_SEL	0x20
    279 #define SIEN0_RSL	0x10
    280 #define SIEN0_SGE	0x08
    281 #define SIEN0_UDC	0x04
    282 #define SIEN0_SRT	0x02
    283 #define SIEN0_PAR	0x01
    284 
    285 #define SIOP_SIEN1	0x41 /* SCSI interrupt enable 1, R/W */
    286 #define SIEN1_SBMC	0x10 /* 895 only */
    287 #define SIEN1_STO	0x04
    288 #define SIEN1_GEN	0x02
    289 #define SIEN1_HTH	0x01
    290 
    291 #define SIOP_SIST0	0x42 /* SCSI interrupt status 0, RO */
    292 #define SIST0_MA	0x80
    293 #define SIST0_CMP	0x40
    294 #define SIST0_SEL	0x20
    295 #define SIST0_RSL	0x10
    296 #define SIST0_SGE	0x08
    297 #define SIST0_UDC	0x04
    298 #define SIST0_RST	0x02
    299 #define SIST0_PAR	0x01
    300 
    301 #define SIOP_SIST1	0x43 /* SCSI interrut status 1, RO */
    302 #define SIST1_SBMC	0x10 /* 895 only */
    303 #define SIST1_STO	0x04
    304 #define SIST1_GEN	0x02
    305 #define SIST1_HTH	0x01
    306 
    307 #define SIOP_SLPAR	0x44 /* scsi longitudinal parity, R/W */
    308 
    309 #define SIOP_SWIDE	0x45 /* scsi wide residue, RW, 875 only */
    310 
    311 #define SIOP_MACNTL	0x46 /* memory access control, R/W */
    312 
    313 #define SIOP_GPCNTL	0x47 /* General Purpose Pin control, R/W */
    314 #define GPCNTL_ME	0x80	/* 875 only */
    315 #define GPCNTL_FE	0x40	/* 875 only */
    316 #define GPCNTL_IN4	0x10	/* 875 only */
    317 #define GPCNTL_IN3	0x08	/* 875 only */
    318 #define GPCNTL_IN2	0x04	/* 875 only */
    319 #define GPCNTL_IN1	0x02
    320 #define GPCNTL_IN0	0x01
    321 
    322 #define SIOP_STIME0	0x48 /* SCSI timer 0, R/W */
    323 #define STIME0_HTH_SHIFT 4
    324 #define STIME0_HTH_MASK	0xf0
    325 #define STIME0_SEL_SHIFT 0
    326 #define STIME0_SEL_MASK	0x0f
    327 
    328 #define SIOP_STIME1	0x49 /* SCSI timer 1, R/W */
    329 #define STIME1_HTHBA	0x40	/* 875 only */
    330 #define STIME1_GENSF	0x20	/* 875 only */
    331 #define STIME1_HTHSF	0x10	/* 875 only */
    332 #define STIME1_GEN_SHIFT 0
    333 #define STIME1_GEN_MASK	0x0f
    334 
    335 #define SIOP_RESPID0	0x4A /* response ID, R/W */
    336 
    337 #define SIOP_RESPID1	0x4B /* response ID, R/W, 875-only */
    338 
    339 #define SIOP_STEST0	0x4C /* SCSI test 0, RO */
    340 
    341 #define SIOP_STEST1	0x4D /* SCSI test 1, RO, RW on 875 */
    342 #define STEST1_DOGE	0x20	/* 1010 only */
    343 #define STEST1_DIGE	0x10	/* 1010 only */
    344 #define STEST1_DBLEN	0x08	/* 875-only */
    345 #define STEST1_DBLSEL	0x04	/* 875-only */
    346 
    347 #define SIOP_STEST2	0x4E /* SCSI test 2, RO, R/W on 875 */
    348 #define STEST2_DIF	0x20	/* 875 only */
    349 #define STEST2_EXT	0x02
    350 
    351 #define SIOP_STEST3	0x4F /* SCSI test 3, RO, RW on 875 */
    352 #define STEST3_TE	0x80
    353 #define STEST3_HSC	0x20
    354 
    355 #define SIOP_STEST4	0x52 /* SCSI test 4, 895 only */
    356 #define STEST4_MODE_MASK 0xc0
    357 #define STEST4_MODE_DIF	0x40
    358 #define STEST4_MODE_SE	0x80
    359 #define STEST4_MODE_LVD	0xc0
    360 #define STEST4_LOCK	0x20
    361 #define STEST4_
    362 
    363 #define SIOP_SIDL	0x50 /* SCSI input data latch, RO */
    364 
    365 #define SIOP_SODL	0x54 /* SCSI output data latch, R/W */
    366 
    367 #define SIOP_SBDL	0x58 /* SCSI bus data lines, RO */
    368 
    369 #define SIOP_SCRATCHB	0x5C /* Scratch register B, R/W */
    370 
    371 #define SIOP_SCRATCHC	0x60 /* Scratch register C, R/W, 875 only */
    372 
    373 #define SIOP_SCRATCHD	0x64 /* Scratch register D, R/W, 875-only */
    374 
    375 #define SIOP_SCRATCHE	0x68 /* Scratch register E, R/W, 875-only */
    376 
    377 #define SIOP_SCRATCHF	0x6c /* Scratch register F, R/W, 875-only */
    378 
    379 #define SIOP_SCRATCHG	0x70 /* Scratch register G, R/W, 875-only */
    380 
    381 #define SIOP_SCRATCHH	0x74 /* Scratch register H, R/W, 875-only */
    382 
    383 #define SIOP_SCRATCHI	0x78 /* Scratch register I, R/W, 875-only */
    384 
    385 #define SIOP_SCRATCHJ	0x7c /* Scratch register J, R/W, 875-only */
    386 
    387 #define SIOP_SCNTL4	0xBC /* SCSI control 4, R/W, 1010-only */
    388 #define SCNTL4_XCLKS_ST	0x01
    389 #define SCNTL4_XCLKS_DT	0x02
    390 #define SCNTL4_XCLKH_ST	0x04
    391 #define SCNTL4_XCLKH_DT	0x08
    392 #define SCNTL4_AIPEN	0x40
    393 #define SCNTL4_U3EN	0x80
    394 
    395 #define SIOP_DFBC	0xf0 /* DMA fifo byte count, RO */
    396 
    397 #define SIOP_AIPCNTL0	0xbe	/* AIP Control 0, 1010-only */
    398 #define AIPCNTL0_ERRLIVE 0x04	/* AIP error status, live */
    399 #define AIPCNTL0_ERR	0x02	/* AIP error status, latched */
    400 #define AIPCNTL0_PARITYERRs 0x01 /* Parity error */
    401 
    402 #define SIOP_AIPCNTL1	0xbf	/* AIP Control 1, 1010-only */
    403 #define AIPCNTL1_DIS	0x08	/* disable AIP generation, 1010-66 only */
    404 #define AIPCNTL1_RSETERR 0x04	/* reset AIP error 1010-66 only */
    405 #define AIPCNTL1_FB	0x02	/* force bad AIP value 1010-66 only */
    406 #define AIPCNTL1_RSET	0x01	/* reset AIP sequence value 1010-66 only */
    407 
    408 /*
    409  * Non-volatile configuration settings stored in the EEPROM.  There
    410  * are at least two known formats: Symbios Logic format and Tekram format.
    411  */
    412 
    413 #define	SIOP_NVRAM_SYM_SIZE		368
    414 #define	SIOP_NVRAM_SYM_ADDRESS		0x100
    415 
    416 struct nvram_symbios {
    417 	/* Header (6 bytes) */
    418 	u_int16_t	type;		/* 0x0000 */
    419 	u_int16_t	byte_count;	/* excluding header/trailer */
    420 	u_int16_t	checksum;
    421 
    422 	/* Adapter configuration (20 bytes) */
    423 	u_int8_t	v_major;
    424 	u_int8_t	v_minor;
    425 	u_int32_t	boot_crc;
    426 	u_int16_t	flags;
    427 #define	NVRAM_SYM_F_SCAM_ENABLE		0x0001
    428 #define	NVRAM_SYM_F_PARITY_ENABLE	0x0002
    429 #define	NVRAM_SYM_F_VERBOSE_MESSAGES	0x0004
    430 #define	NVRAM_SYM_F_CHS_MAPPING		0x0008
    431 	u_int16_t	flags1;
    432 #define	NVRAM_SYM_F1_SCAN_HI_LO		0x0001
    433 	u_int16_t	term_state;
    434 #define	NVRAM_SYM_TERM_CANT_PROGRAM	0
    435 #define	NVRAM_SYM_TERM_ENABLED		1
    436 #define	NVRAM_SYM_TERM_DISABLED		2
    437 	u_int16_t	rmvbl_flags;
    438 #define	NVRAM_SYM_RMVBL_NO_SUPPORT	0
    439 #define	NVRAM_SYM_RMVBL_BOOT_DEVICE	1
    440 #define	NVRAM_SYM_RMVBL_MEDIA_INSTALLED	2
    441 	u_int8_t	host_id;
    442 	u_int8_t	num_hba;
    443 	u_int8_t	num_devices;
    444 	u_int8_t	max_scam_devices;
    445 	u_int8_t	num_valid_scam_devices;
    446 	u_int8_t	rsvd;
    447 
    448 	/* Boot order (14 bytes x 4) */
    449 	struct nvram_symbios_host {
    450 		u_int16_t	type;		/* 4 - 8xx */
    451 		u_int16_t	device_id;	/* PCI device ID */
    452 		u_int16_t	vendor_id;	/* PCI vendor ID */
    453 		u_int8_t	bus_nr;		/* PCI bus number */
    454 		u_int8_t	device_fn;	/* PCI device/func # << 3 */
    455 		u_int16_t	word8;
    456 		u_int16_t	flags;
    457 #define	NVRAM_SYM_HOST_F_SCAN_AT_BOOT	0x0001
    458 		u_int16_t	io_port;	/* PCI I/O address */
    459 	} __attribute__((__packed__)) host[4];
    460 
    461 	/* Targets (8 bytes x 16) */
    462 	struct nvram_symbios_target {
    463 		u_int8_t	flags;
    464 #define	NVRAM_SYM_TARG_F_DISCONNECT_EN	0x0001
    465 #define	NVRAM_SYM_TARG_F_SCAN_AT_BOOT	0x0002
    466 #define	NVRAM_SYM_TARG_F_SCAN_LUNS	0x0004
    467 #define	NVRAM_SYM_TARG_F_TQ_EN		0x0008
    468 		u_int8_t	rsvd;
    469 		u_int8_t	bus_width;
    470 		u_int8_t	sync_offset;	/* 8, 16, etc. */
    471 		u_int16_t	sync_period;	/* 4 * factor */
    472 		u_int16_t	timeout;
    473 	} __attribute__((__packed__)) target[16];
    474 
    475 	/* SCAM table (8 bytes x 4) */
    476 	struct nvram_symbios_scam {
    477 		u_int16_t	id;
    478 		u_int16_t	method;
    479 #define	NVRAM_SYM_SCAM_DEFAULT_METHOD	0
    480 #define	NVRAM_SYM_SCAM_DONT_ASSIGN	1
    481 #define	NVRAM_SYM_SCAM_SET_SPECIFIC_ID	2
    482 #define	NVRAM_SYM_SCAM_USE_ORDER_GIVEN	3
    483 		u_int16_t	status;
    484 #define	NVRAM_SYM_SCAM_UNKNOWN		0
    485 #define	NVRAM_SYM_SCAM_DEVICE_NOT_FOUND	1
    486 #define	NVRAM_SYM_SCAM_ID_NOT_SET	2
    487 #define	NVRAM_SYM_SCAM_ID_VALID		3
    488 		u_int8_t		target_id;
    489 		u_int8_t		rsvd;
    490 	} __attribute__((__packed__)) scam[4];
    491 
    492 	u_int8_t	spare_devices[15 * 8];
    493 	u_int8_t	trailer[6];	/* 0xfe 0xfe 0x00 0x00 0x00 0x00 */
    494 } __attribute__((__packed__));
    495 
    496 #define	SIOP_NVRAM_TEK_SIZE		64
    497 #define	SIOP_NVRAM_TEK_93c46_ADDRESS	0
    498 #define	SIOP_NVRAM_TEK_24c16_ADDRESS	0x40
    499 
    500 static const u_int8_t tekram_sync_table[16] __attribute__((__unused__)) = {
    501 	25, 31, 37,  43,
    502 	50, 62, 75, 125,
    503 	12, 15, 18,  21,
    504 	 6,  7,  9,  10,
    505 };
    506 
    507 struct nvram_tekram {
    508 	struct nvram_tekram_target {
    509 		u_int8_t	flags;
    510 #define	NVRAM_TEK_TARG_F_PARITY_CHECK	0x01
    511 #define	NVRAM_TEK_TARG_F_SYNC_NEGO	0x02
    512 #define	NVRAM_TEK_TARG_F_DISCONNECT_EN	0x04
    513 #define	NVRAM_TEK_TARG_F_START_CMD	0x08
    514 #define	NVRAM_TEK_TARG_F_TQ_EN		0x10
    515 #define	NVRAM_TEK_TARG_F_WIDE_NEGO	0x20
    516 		u_int8_t	sync_index;
    517 		u_int16_t	word2;
    518 	} __attribute__((__packed__)) target[16];
    519 	u_int8_t	host_id;
    520 	u_int8_t	flags;
    521 #define	NVRAM_TEK_F_MORE_THAN_2_DRIVES	0x01
    522 #define	NVRAM_TEK_F_DRIVES_SUP_1G	0x02
    523 #define	NVRAM_TEK_F_RESET_ON_POWER_ON	0x04
    524 #define	NVRAM_TEK_F_ACTIVE_NEGATION	0x08
    525 #define	NVRAM_TEK_F_IMMEDIATE_SEEK	0x10
    526 #define	NVRAM_TEK_F_SCAN_LUNS		0x20
    527 #define	NVRAM_TEK_F_REMOVABLE_FLAGS	0xc0	/* 0 dis, 1 boot, 2 all */
    528 	u_int8_t	boot_delay_index;
    529 	u_int8_t	max_tags_index;
    530 	u_int16_t	flags1;
    531 #define	NVRAM_TEK_F_F2_F6_ENABLED	0x0001
    532 	u_int16_t	spare[29];
    533 } __attribute__((__packed__));
    534