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      1 /*      $NetBSD: adwlib.h,v 1.23 2019/12/15 16:48:27 tsutsui Exp $        */
      2 
      3 /*
      4  * Definitions for low level routines and data structures
      5  * for the Advanced Systems Inc. SCSI controllers chips.
      6  *
      7  * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
      8  * All rights reserved.
      9  *
     10  * Author: Baldassare Dante Profeta <dante (at) mclink.it>
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 /*
     34  * Ported from:
     35  */
     36 /*
     37  * advansys.c - Linux Host Driver for AdvanSys SCSI Adapters
     38  *
     39  * Copyright (c) 1995-2000 Advanced System Products, Inc.
     40  * All Rights Reserved.
     41  *
     42  * Redistribution and use in source and binary forms, with or without
     43  * modification, are permitted provided that redistributions of source
     44  * code retain the above copyright notice and this comment without
     45  * modification.
     46  */
     47 
     48 #ifndef	_ADVANSYS_WIDE_LIBRARY_H_
     49 #define	_ADVANSYS_WIDE_LIBRARY_H_
     50 
     51 
     52 /*
     53  * --- Adw Library Constants and Macros
     54  */
     55 
     56 #define ADW_LIB_VERSION_MAJOR	5
     57 #define ADW_LIB_VERSION_MINOR	8
     58 
     59 
     60 /* If the result wraps when calculating tenths, return 0. */
     61 #define ADW_TENTHS(num, den) \
     62 	(((10 * ((num)/(den))) > (((num) * 10)/(den))) ? \
     63 	0 : ((((num) * 10)/(den)) - (10 * ((num)/(den)))))
     64 
     65 
     66 /*
     67  * Define Adw Reset Hold Time grater than 25 uSec.
     68  * See AdwResetSCSIBus() for more info.
     69  */
     70 #define ASC_SCSI_RESET_HOLD_TIME_US  60
     71 
     72 /*
     73  * Define Adw EEPROM constants.
     74  */
     75 
     76 #define ASC_EEP_DVC_CFG_BEGIN           (0x00)
     77 #define ASC_EEP_DVC_CFG_END             (0x15)
     78 #define ASC_EEP_DVC_CTL_BEGIN           (0x16)  /* location of OEM name */
     79 #define ASC_EEP_MAX_WORD_ADDR           (0x1E)
     80 
     81 #define ASC_EEP_DELAY_MS                100
     82 
     83 /*
     84  * EEPROM bits reference by the RISC after initialization.
     85  */
     86 #define ADW_EEPROM_BIG_ENDIAN          0x8000   /* EEPROM Bit 15 */
     87 #define ADW_EEPROM_BIOS_ENABLE         0x4000   /* EEPROM Bit 14 */
     88 #define ADW_EEPROM_TERM_POL            0x2000   /* EEPROM Bit 13 */
     89 
     90 /*
     91  * EEPROM configuration format
     92  *
     93  * Field naming convention:
     94  *
     95  *  *_enable indicates the field enables or disables the feature. The
     96  *  value is never reset.
     97  *
     98  *  *_able indicates both whether a feature should be enabled or disabled
     99  *  and whether a device isi capable of the feature. At initialization
    100  *  this field may be set, but later if a device is found to be incapable
    101  *  of the feature, the field is cleared.
    102  *
    103  * Default values are maintained in the structure Default_EEPROM_Config.
    104  */
    105 #define ADV_EEPROM_BIG_ENDIAN          0x8000   /* EEPROM Bit 15 */
    106 #define ADV_EEPROM_BIOS_ENABLE         0x4000   /* EEPROM Bit 14 */
    107 /*
    108  * For the ASC3550 Bit 13 is Termination Polarity control bit.
    109  * For later ICs Bit 13 controls whether the CIS (Card Information
    110  * Service Section) is loaded from EEPROM.
    111  */
    112 #define ADV_EEPROM_TERM_POL            0x2000   /* EEPROM Bit 13 */
    113 #define ADV_EEPROM_CIS_LD              0x2000   /* EEPROM Bit 13 */
    114 
    115 /*
    116  * ASC38C1600 Bit 11
    117  *
    118  * If EEPROM Bit 11 is 0 for Function 0, then Function 0 will specify
    119  * INT A in the PCI Configuration Space Int Pin field. If it is 1, then
    120  * Function 0 will specify INT B.
    121  *
    122  * If EEPROM Bit 11 is 0 for Function 1, then Function 1 will specify
    123  * INT B in the PCI Configuration Space Int Pin field. If it is 1, then
    124  * Function 1 will specify INT A.
    125  */
    126 #define ADW_EEPROM_INTAB               0x0800   /* EEPROM Bit 11 */
    127 
    128 typedef struct adw_eeprom
    129 {
    130 						/* Word Offset, Description */
    131 
    132 	u_int16_t	cfg_lsw;		/* 00 power up initialization */
    133 						/*  bit 13 set - Term Polarity Control */
    134 						/*  bit 14 set - BIOS Enable */
    135 						/*  bit 15 set - Big Endian Mode */
    136 	u_int16_t	cfg_msw;		/* 01 unused	*/
    137 	u_int16_t	disc_enable;		/* 02 disconnect enable */
    138 	u_int16_t	wdtr_able;		/* 03 Wide DTR able */
    139 	union {
    140 		u_int16_t	sdtr_able;	/* 04 Synchronous DTR able */
    141 		u_int16_t	sdtr_speed1;	/* 04 SDTR Speed TID 0-3 */
    142 	} sdtr1;
    143 	u_int16_t	start_motor;		/* 05 send start up motor */
    144 	u_int16_t	tagqng_able;		/* 06 tag queuing able */
    145 	u_int16_t	bios_scan;		/* 07 BIOS device control */
    146 	u_int16_t	scam_tolerant;		/* 08 no scam */
    147 
    148 	u_int8_t	adapter_scsi_id;	/* 09 Host Adapter ID */
    149 	u_int8_t	bios_boot_delay;	/*    power up wait */
    150 
    151 	u_int8_t	scsi_reset_delay;	/* 10 reset delay */
    152 	u_int8_t	bios_id_lun;		/*    first boot device scsi id & lun */
    153 						/*    high nibble is lun */
    154 						/*    low nibble is scsi id */
    155 
    156 	u_int8_t	termination_se;		/* 11 0 - automatic */
    157 						/*    1 - low off / high off */
    158 						/*    2 - low off / high on */
    159 						/*    3 - low on  / high on */
    160 						/*    There is no low on  / high off */
    161 
    162 	u_int8_t	termination_lvd;	/* 11 0 - automatic */
    163 						/*    1 - low off / high off */
    164 						/*    2 - low off / high on */
    165 						/*    3 - low on  / high on */
    166 						/*    There is no low on  / high off */
    167 
    168 	u_int16_t	bios_ctrl;		/* 12 BIOS control bits */
    169 						  	  /*  bit 0  BIOS don't act as initiator. */
    170 						/*  bit 1  BIOS > 1 GB support */
    171 						/*  bit 2  BIOS > 2 Disk Support */
    172 						/*  bit 3  BIOS don't support removables */
    173 						/*  bit 4  BIOS support bootable CD */
    174 						/*  bit 5  BIOS scan enabled */
    175 						/*  bit 6  BIOS support multiple LUNs */
    176 						/*  bit 7  BIOS display of message */
    177 						/*  bit 8  SCAM disabled */
    178 						/*  bit 9  Reset SCSI bus during init. */
    179 						/*  bit 10 */
    180 						/*  bit 11 No verbose initialization. */
    181 						/*  bit 12 SCSI parity enabled */
    182 						/*  bit 13 */
    183 						/*  bit 14 */
    184 						/*  bit 15 */
    185 	union {
    186 		u_int16_t	ultra_able;	/* 13 ULTRA speed able */
    187 		u_int16_t	sdtr_speed2;	/* 13 SDTR speed TID 4-7 */
    188 	} sdtr2;
    189 	union {
    190 		u_int16_t	reserved2;	/* 14 reserved */
    191 		u_int16_t	sdtr_speed3;	/* 14 SDTR speed TID 8-11 */
    192 	} sdtr3;
    193 	u_int8_t	max_host_qng;		/* 15 maximum host queuing */
    194 	u_int8_t	max_dvc_qng;		/*    maximum per device queuing */
    195 	u_int16_t	dvc_cntl;		/* 16 control bit for driver */
    196 	union {
    197 		u_int16_t	bug_fix;	/* 17 control bit for bug fix */
    198 		u_int16_t	sdtr_speed4;	/* 17 SDTR speed 4 TID 12-15 */
    199 	} sdtr4;
    200 	u_int16_t	serial_number[3];	/* 18 - 20 Board serial number */
    201 	u_int16_t	check_sum;		/* 21 EEP check sum */
    202 	u_int8_t	oem_name[16];		/* 22 OEM name */
    203 	u_int16_t	dvc_err_code;		/* 30 last device driver error code */
    204 	u_int16_t	adv_err_code;		/* 31 last uc and Adw Lib error code */
    205 	u_int16_t	adv_err_addr;		/* 32 last uc error address */
    206 	u_int16_t	saved_dvc_err_code;	/* 33 saved last dev. driver error code	*/
    207 	u_int16_t	saved_adv_err_code;	/* 34 saved last uc and Adw Lib error code */
    208 	u_int16_t	saved_adv_err_addr;	/* 35 saved last uc error address 	*/
    209 	u_int16_t	reserved1[20];		/* 36 - 55 reserved */
    210 	u_int16_t	cisptr_lsw;		/* 56 CIS PTR LSW */
    211 	u_int16_t	cisprt_msw;		/* 57 CIS PTR MSW */
    212 	u_int16_t	subsysvid;		/* 58 SubSystem Vendor ID */
    213 	u_int16_t	subsysid;		/* 59 SubSystem ID */
    214 	u_int16_t	reserved2[4];		/* 60 - 63 reserved */
    215 } ADW_EEPROM;
    216 
    217 
    218 /*
    219  * EEPROM Commands
    220  */
    221 #define ASC_EEP_CMD_READ          0x80
    222 #define ASC_EEP_CMD_WRITE         0x40
    223 #define ASC_EEP_CMD_WRITE_ABLE    0x30
    224 #define ASC_EEP_CMD_WRITE_DISABLE 0x00
    225 
    226 #define ASC_EEP_CMD_DONE             0x0200
    227 #define ASC_EEP_CMD_DONE_ERR         0x0001
    228 
    229 /* cfg_word */
    230 #define EEP_CFG_WORD_BIG_ENDIAN      0x8000
    231 
    232 /* bios_ctrl */
    233 #define BIOS_CTRL_BIOS               0x0001
    234 #define BIOS_CTRL_EXTENDED_XLAT      0x0002
    235 #define BIOS_CTRL_GT_2_DISK          0x0004
    236 #define BIOS_CTRL_BIOS_REMOVABLE     0x0008
    237 #define BIOS_CTRL_BOOTABLE_CD        0x0010
    238 #define BIOS_CTRL_MULTIPLE_LUN       0x0040
    239 #define BIOS_CTRL_DISPLAY_MSG        0x0080
    240 #define BIOS_CTRL_NO_SCAM            0x0100
    241 #define BIOS_CTRL_RESET_SCSI_BUS     0x0200
    242 #define BIOS_CTRL_INIT_VERBOSE       0x0800
    243 #define BIOS_CTRL_SCSI_PARITY        0x1000
    244 #define BIOS_CTRL_AIPP_DIS           0x2000
    245 
    246 #define ADW_3550_MEMSIZE             0x2000	/* 8 KB Internal Memory */
    247 #define ADW_3550_IOLEN               0x40	/* I/O Port Range in bytes */
    248 
    249 #define ADW_38C0800_MEMSIZE          0x4000	/* 16 KB Internal Memory */
    250 #define ADW_38C0800_IOLEN            0x100	/* I/O Port Range in bytes */
    251 
    252 #define ADW_38C1600_MEMSIZE          0x8000	/* 32 KB Internal Memory */
    253 #define ADW_38C1600_IOLEN            0x100	/* I/O Port Range 256 bytes */
    254 #define ADW_38C1600_MEMLEN           0x1000	/* Memory Range 4KB bytes */
    255 
    256 /*
    257  * Byte I/O register address from base of 'iop_base'.
    258  */
    259 #define IOPB_INTR_STATUS_REG    0x00
    260 #define IOPB_CHIP_ID_1          0x01
    261 #define IOPB_INTR_ENABLES       0x02
    262 #define IOPB_CHIP_TYPE_REV      0x03
    263 #define IOPB_RES_ADDR_4         0x04
    264 #define IOPB_RES_ADDR_5         0x05
    265 #define IOPB_RAM_DATA           0x06
    266 #define IOPB_RES_ADDR_7         0x07
    267 #define IOPB_FLAG_REG           0x08
    268 #define IOPB_RES_ADDR_9         0x09
    269 #define IOPB_RISC_CSR           0x0A
    270 #define IOPB_RES_ADDR_B         0x0B
    271 #define IOPB_RES_ADDR_C         0x0C
    272 #define IOPB_RES_ADDR_D         0x0D
    273 #define IOPB_SOFT_OVER_WR       0x0E
    274 #define IOPB_RES_ADDR_F         0x0F
    275 #define IOPB_MEM_CFG            0x10
    276 #define IOPB_RES_ADDR_11        0x11
    277 #define IOPB_GPIO_DATA          0x12
    278 #define IOPB_RES_ADDR_13        0x13
    279 #define IOPB_FLASH_PAGE         0x14
    280 #define IOPB_RES_ADDR_15        0x15
    281 #define IOPB_GPIO_CNTL          0x16
    282 #define IOPB_RES_ADDR_17        0x17
    283 #define IOPB_FLASH_DATA         0x18
    284 #define IOPB_RES_ADDR_19        0x19
    285 #define IOPB_RES_ADDR_1A        0x1A
    286 #define IOPB_RES_ADDR_1B        0x1B
    287 #define IOPB_RES_ADDR_1C        0x1C
    288 #define IOPB_RES_ADDR_1D        0x1D
    289 #define IOPB_RES_ADDR_1E        0x1E
    290 #define IOPB_RES_ADDR_1F        0x1F
    291 #define IOPB_DMA_CFG0           0x20
    292 #define IOPB_DMA_CFG1           0x21
    293 #define IOPB_TICKLE             0x22
    294 #define IOPB_DMA_REG_WR         0x23
    295 #define IOPB_SDMA_STATUS        0x24
    296 #define IOPB_SCSI_BYTE_CNT      0x25
    297 #define IOPB_HOST_BYTE_CNT      0x26
    298 #define IOPB_BYTE_LEFT_TO_XFER  0x27
    299 #define IOPB_BYTE_TO_XFER_0     0x28
    300 #define IOPB_BYTE_TO_XFER_1     0x29
    301 #define IOPB_BYTE_TO_XFER_2     0x2A
    302 #define IOPB_BYTE_TO_XFER_3     0x2B
    303 #define IOPB_ACC_GRP            0x2C
    304 #define IOPB_RES_ADDR_2D        0x2D
    305 #define IOPB_DEV_ID             0x2E
    306 #define IOPB_RES_ADDR_2F        0x2F
    307 #define IOPB_SCSI_DATA          0x30
    308 #define IOPB_RES_ADDR_31        0x31
    309 #define IOPB_RES_ADDR_32        0x32
    310 #define IOPB_SCSI_DATA_HSHK     0x33
    311 #define IOPB_SCSI_CTRL          0x34
    312 #define IOPB_RES_ADDR_35        0x35
    313 #define IOPB_RES_ADDR_36        0x36
    314 #define IOPB_RES_ADDR_37        0x37
    315 #define IOPB_RAM_BIST           0x38
    316 #define IOPB_PLL_TEST           0x39
    317 #define IOPB_PCI_INT_CFG        0x3A
    318 #define IOPB_RES_ADDR_3B        0x3B
    319 #define IOPB_RFIFO_CNT          0x3C
    320 #define IOPB_RES_ADDR_3D        0x3D
    321 #define IOPB_RES_ADDR_3E        0x3E
    322 #define IOPB_RES_ADDR_3F        0x3F
    323 
    324 /*
    325  * Word I/O register address from base of 'iop_base'.
    326  */
    327 #define IOPW_CHIP_ID_0          0x00  /* CID0  */
    328 #define IOPW_CTRL_REG           0x02  /* CC    */
    329 #define IOPW_RAM_ADDR           0x04  /* LA    */
    330 #define IOPW_RAM_DATA           0x06  /* LD    */
    331 #define IOPW_RES_ADDR_08        0x08
    332 #define IOPW_RISC_CSR           0x0A  /* CSR   */
    333 #define IOPW_SCSI_CFG0          0x0C  /* CFG0  */
    334 #define IOPW_SCSI_CFG1          0x0E  /* CFG1  */
    335 #define IOPW_RES_ADDR_10        0x10
    336 #define IOPW_SEL_MASK           0x12  /* SM    */
    337 #define IOPW_RES_ADDR_14        0x14
    338 #define IOPW_FLASH_ADDR         0x16  /* FA    */
    339 #define IOPW_RES_ADDR_18        0x18
    340 #define IOPW_EE_CMD             0x1A  /* EC    */
    341 #define IOPW_EE_DATA            0x1C  /* ED    */
    342 #define IOPW_SFIFO_CNT          0x1E  /* SFC   */
    343 #define IOPW_RES_ADDR_20        0x20
    344 #define IOPW_Q_BASE             0x22  /* QB    */
    345 #define IOPW_QP                 0x24  /* QP    */
    346 #define IOPW_IX                 0x26  /* IX    */
    347 #define IOPW_SP                 0x28  /* SP    */
    348 #define IOPW_PC                 0x2A  /* PC    */
    349 #define IOPW_RES_ADDR_2C        0x2C
    350 #define IOPW_RES_ADDR_2E        0x2E
    351 #define IOPW_SCSI_DATA          0x30  /* SD    */
    352 #define IOPW_SCSI_DATA_HSHK     0x32  /* SDH   */
    353 #define IOPW_SCSI_CTRL          0x34  /* SC    */
    354 #define IOPW_HSHK_CFG           0x36  /* HCFG  */
    355 #define IOPW_SXFR_STATUS        0x36  /* SXS   */
    356 #define IOPW_SXFR_CNTL          0x38  /* SXL   */
    357 #define IOPW_SXFR_CNTH          0x3A  /* SXH   */
    358 #define IOPW_RES_ADDR_3C        0x3C
    359 #define IOPW_RFIFO_DATA         0x3E  /* RFD   */
    360 
    361 /*
    362  * Doubleword I/O register address from base of 'iop_base'.
    363  */
    364 #define IOPDW_RES_ADDR_0         0x00
    365 #define IOPDW_RAM_DATA           0x04
    366 #define IOPDW_RES_ADDR_8         0x08
    367 #define IOPDW_RES_ADDR_C         0x0C
    368 #define IOPDW_RES_ADDR_10        0x10
    369 #define IOPDW_COMMA              0x14
    370 #define IOPDW_COMMB              0x18
    371 #define IOPDW_RES_ADDR_1C        0x1C
    372 #define IOPDW_SDMA_ADDR0         0x20
    373 #define IOPDW_SDMA_ADDR1         0x24
    374 #define IOPDW_SDMA_COUNT         0x28
    375 #define IOPDW_SDMA_ERROR         0x2C
    376 #define IOPDW_RDMA_ADDR0         0x30
    377 #define IOPDW_RDMA_ADDR1         0x34
    378 #define IOPDW_RDMA_COUNT         0x38
    379 #define IOPDW_RDMA_ERROR         0x3C
    380 
    381 #define ADW_CHIP_ID_BYTE         0x25
    382 #define ADW_CHIP_ID_WORD         0x04C1
    383 
    384 #define ADW_SC_SCSI_BUS_RESET    0x2000
    385 
    386 #define ADW_INTR_ENABLE_HOST_INTR                   0x01
    387 #define ADW_INTR_ENABLE_SEL_INTR                    0x02
    388 #define ADW_INTR_ENABLE_DPR_INTR                    0x04
    389 #define ADW_INTR_ENABLE_RTA_INTR                    0x08
    390 #define ADW_INTR_ENABLE_RMA_INTR                    0x10
    391 #define ADW_INTR_ENABLE_RST_INTR                    0x20
    392 #define ADW_INTR_ENABLE_DPE_INTR                    0x40
    393 #define ADW_INTR_ENABLE_GLOBAL_INTR                 0x80
    394 
    395 #define ADW_INTR_STATUS_INTRA            0x01
    396 #define ADW_INTR_STATUS_INTRB            0x02
    397 #define ADW_INTR_STATUS_INTRC            0x04
    398 
    399 #define ADW_RISC_CSR_STOP           (0x0000)
    400 #define ADW_RISC_TEST_COND          (0x2000)
    401 #define ADW_RISC_CSR_RUN            (0x4000)
    402 #define ADW_RISC_CSR_SINGLE_STEP    (0x8000)
    403 
    404 #define ADW_CTRL_REG_HOST_INTR      0x0100
    405 #define ADW_CTRL_REG_SEL_INTR       0x0200
    406 #define ADW_CTRL_REG_DPR_INTR       0x0400
    407 #define ADW_CTRL_REG_RTA_INTR       0x0800
    408 #define ADW_CTRL_REG_RMA_INTR       0x1000
    409 #define ADW_CTRL_REG_RES_BIT14      0x2000
    410 #define ADW_CTRL_REG_DPE_INTR       0x4000
    411 #define ADW_CTRL_REG_POWER_DONE     0x8000
    412 #define ADW_CTRL_REG_ANY_INTR       0xFF00
    413 
    414 #define ADW_CTRL_REG_CMD_RESET             0x00C6
    415 #define ADW_CTRL_REG_CMD_WR_IO_REG         0x00C5
    416 #define ADW_CTRL_REG_CMD_RD_IO_REG         0x00C4
    417 #define ADW_CTRL_REG_CMD_WR_PCI_CFG_SPACE  0x00C3
    418 #define ADW_CTRL_REG_CMD_RD_PCI_CFG_SPACE  0x00C2
    419 
    420 #define ADW_TICKLE_NOP                      0x00
    421 #define ADW_TICKLE_A                        0x01
    422 #define ADW_TICKLE_B                        0x02
    423 #define ADW_TICKLE_C                        0x03
    424 
    425 #define ADW_SCSI_CTRL_RSTOUT        0x2000
    426 
    427 #define ADW_IS_INT_PENDING(iot, ioh)  \
    428     (ADW_READ_WORD_REGISTER((iot), (ioh), IOPW_CTRL_REG) & ADW_CTRL_REG_HOST_INTR)
    429 
    430 /*
    431  * SCSI_CFG0 Register bit definitions
    432  */
    433 #define ADW_TIMER_MODEAB    0xC000  /* Watchdog, Second, and Select. Timer Ctrl. */
    434 #define ADW_PARITY_EN       0x2000  /* Enable SCSI Parity Error detection */
    435 #define ADW_EVEN_PARITY     0x1000  /* Select Even Parity */
    436 #define ADW_WD_LONG         0x0800  /* Watchdog Interval, 1: 57 min, 0: 13 sec */
    437 #define ADW_QUEUE_128       0x0400  /* Queue Size, 1: 128 byte, 0: 64 byte */
    438 #define ADW_PRIM_MODE       0x0100  /* Primitive SCSI mode */
    439 #define ADW_SCAM_EN         0x0080  /* Enable SCAM selection */
    440 #define ADW_SEL_TMO_LONG    0x0040  /* Sel/Resel Timeout, 1: 400 ms, 0: 1.6 ms */
    441 #define ADW_CFRM_ID         0x0020  /* SCAM id sel. confirm., 1: fast, 0: 6.4 ms */
    442 #define ADW_OUR_ID_EN       0x0010  /* Enable OUR_ID bits */
    443 #define ADW_OUR_ID          0x000F  /* SCSI ID */
    444 
    445 /*
    446  * SCSI_CFG1 Register bit definitions
    447  */
    448 #define ADW_BIG_ENDIAN      0x8000  /* Enable Big Endian Mode MIO:15, EEP:15 */
    449 #define ADW_TERM_POL        0x2000  /* Terminator Polarity Ctrl. MIO:13, EEP:13 */
    450 #define ADW_SLEW_RATE       0x1000  /* SCSI output buffer slew rate */
    451 #define ADW_FILTER_SEL      0x0C00  /* Filter Period Selection */
    452 #define  ADW_FLTR_DISABLE    0x0000  /* Input Filtering Disabled */
    453 #define  ADW_FLTR_11_TO_20NS 0x0800  /* Input Filtering 11ns to 20ns */
    454 #define  ADW_FLTR_21_TO_39NS 0x0C00  /* Input Filtering 21ns to 39ns */
    455 #define ADW_ACTIVE_DBL      0x0200  /* Disable Active Negation */
    456 #define ADW_DIFF_MODE       0x0100  /* SCSI differential Mode (Read-Only) */
    457 #define ADW_DIFF_SENSE      0x0080  /* 1: No SE cables, 0: SE cable (Read-Only) */
    458 #define ADW_TERM_CTL_SEL    0x0040  /* Enable TERM_CTL_H and TERM_CTL_L */
    459 #define ADW_TERM_CTL        0x0030  /* External SCSI Termination Bits */
    460 #define  ADW_TERM_CTL_H      0x0020  /* Enable External SCSI Upper Termination */
    461 #define  ADW_TERM_CTL_L      0x0010  /* Enable External SCSI Lower Termination */
    462 #define ADW_CABLE_DETECT    0x000F  /* External SCSI Cable Connection Status */
    463 
    464 /*
    465  * Addendum for ASC-38C0800 Chip
    466  *
    467  * The ASC-38C1600 Chip uses the same definitions except that the
    468  * bus mode override bits [12:10] have been moved to byte register
    469  * offset 0xE (IOPB_SOFT_OVER_WR) bits [12:10]. The [12:10] bits in
    470  * SCSI_CFG1 are read-only and always available. Bit 14 (DIS_TERM_DRV)
    471  * is not needed. The [12:10] bits in IOPB_SOFT_OVER_WR are write-only.
    472  * Also each ASC-38C1600 function or channel uses only cable bits [5:4]
    473  * and [1:0]. Bits [14], [7:6], [3:2] are unused.
    474  */
    475 #define ADW_DIS_TERM_DRV    0x4000  /* 1: Read c_det[3:0], 0: cannot read */
    476 #define ADW_HVD_LVD_SE      0x1C00  /* Device Detect Bits */
    477 #define  ADW_HVD             0x1000  /* HVD Device Detect */
    478 #define  ADW_LVD             0x0800  /* LVD Device Detect */
    479 #define  ADW_SE              0x0400  /* SE Device Detect */
    480 #define ADW_TERM_LVD        0x00C0  /* LVD Termination Bits */
    481 #define  ADW_TERM_LVD_HI     0x0080  /* Enable LVD Upper Termination */
    482 #define  ADW_TERM_LVD_LO     0x0040  /* Enable LVD Lower Termination */
    483 #define ADW_TERM_SE         0x0030  /* SE Termination Bits */
    484 #define  ADW_TERM_SE_HI      0x0020  /* Enable SE Upper Termination */
    485 #define  ADW_TERM_SE_LO      0x0010  /* Enable SE Lower Termination */
    486 #define ADW_C_DET_LVD       0x000C  /* LVD Cable Detect Bits */
    487 #define  ADW_C_DET3          0x0008  /* Cable Detect for LVD External Wide */
    488 #define  ADW_C_DET2          0x0004  /* Cable Detect for LVD Internal Wide */
    489 #define ADW_C_DET_SE        0x0003  /* SE Cable Detect Bits */
    490 #define  ADW_C_DET1          0x0002  /* Cable Detect for SE Internal Wide */
    491 #define  ADW_C_DET0          0x0001  /* Cable Detect for SE Internal Narrow */
    492 
    493 
    494 #define CABLE_ILLEGAL_A 0x7
    495     /* x 0 0 0  | on  on | Illegal (all 3 connectors are used) */
    496 
    497 #define CABLE_ILLEGAL_B 0xB
    498     /* 0 x 0 0  | on  on | Illegal (all 3 connectors are used) */
    499 
    500 /*
    501    The following table details the SCSI_CFG1 Termination Polarity,
    502    Termination Control and Cable Detect bits.
    503 
    504    Cable Detect | Termination
    505    Bit 3 2 1 0  | 5   4  | Notes
    506    _____________|________|____________________
    507        1 1 1 0  | on  on | Internal wide only
    508        1 1 0 1  | on  on | Internal narrow only
    509        1 0 1 1  | on  on | External narrow only
    510        0 x 1 1  | on  on | External wide only
    511        1 1 0 0  | on  off| Internal wide and internal narrow
    512        1 0 1 0  | on  off| Internal wide and external narrow
    513        0 x 1 0  | off off| Internal wide and external wide
    514        1 0 0 1  | on  off| Internal narrow and external narrow
    515        0 x 0 1  | on  off| Internal narrow and external wide
    516        1 1 1 1  | on  on | No devices are attached
    517        x 0 0 0  | on  on | Illegal (all 3 connectors are used)
    518        0 x 0 0  | on  on | Illegal (all 3 connectors are used)
    519 
    520        x means don't-care (either '0' or '1')
    521 
    522        If term_pol (bit 13) is '0' (active-low terminator enable), then:
    523            'on' is '0' and 'off' is '1'.
    524 
    525        If term_pol bit is '1' (meaning active-hi terminator enable), then:
    526            'on' is '1' and 'off' is '0'.
    527  */
    528 
    529 /*
    530  * MEM_CFG Register bit definitions
    531  */
    532 #define ADW_BIOS_EN         0x40    /* BIOS Enable MIO:14,EEP:14 */
    533 #define ADW_FAST_EE_CLK     0x20    /* Diagnostic Bit */
    534 #define ADW_RAM_SZ          0x1C    /* Specify size of RAM to RISC */
    535 #define  ADW_RAM_SZ_2KB      0x00    /* 2 KB */
    536 #define  ADW_RAM_SZ_4KB      0x04    /* 4 KB */
    537 #define  ADW_RAM_SZ_8KB      0x08    /* 8 KB */
    538 #define  ADW_RAM_SZ_16KB     0x0C    /* 16 KB */
    539 #define  ADW_RAM_SZ_32KB     0x10    /* 32 KB */
    540 #define  ADW_RAM_SZ_64KB     0x14    /* 64 KB */
    541 
    542 /*
    543  * DMA_CFG0 Register bit definitions
    544  *
    545  * This register is only accessible to the host.
    546  */
    547 #define BC_THRESH_ENB   0x80    /* PCI DMA Start Conditions */
    548 #define FIFO_THRESH     0x70    /* PCI DMA FIFO Threshold */
    549 #define  FIFO_THRESH_16B  0x00   /* 16 bytes */
    550 #define  FIFO_THRESH_32B  0x20   /* 32 bytes */
    551 #define  FIFO_THRESH_48B  0x30   /* 48 bytes */
    552 #define  FIFO_THRESH_64B  0x40   /* 64 bytes */
    553 #define  FIFO_THRESH_80B  0x50   /* 80 bytes (default) */
    554 #define  FIFO_THRESH_96B  0x60   /* 96 bytes */
    555 #define  FIFO_THRESH_112B 0x70   /* 112 bytes */
    556 #define START_CTL       0x0C    /* DMA start conditions */
    557 #define  START_CTL_TH    0x00    /* Wait threshold level (default) */
    558 #define  START_CTL_ID    0x04    /* Wait SDMA/SBUS idle */
    559 #define  START_CTL_THID  0x08    /* Wait threshold and SDMA/SBUS idle */
    560 #define  START_CTL_EMFU  0x0C    /* Wait SDMA FIFO empty/full */
    561 #define READ_CMD        0x03    /* Memory Read Method */
    562 #define  READ_CMD_MR     0x00    /* Memory Read */
    563 #define  READ_CMD_MRL    0x02    /* Memory Read Long */
    564 #define  READ_CMD_MRM    0x03    /* Memory Read Multiple (default) */
    565 
    566 /*
    567  * ASC-38C0800 RAM BIST Register bit definitions
    568  */
    569 #define RAM_TEST_MODE         0x80
    570 #define PRE_TEST_MODE         0x40
    571 #define NORMAL_MODE           0x00
    572 #define RAM_TEST_DONE         0x10
    573 #define RAM_TEST_STATUS       0x0F
    574 #define  RAM_TEST_HOST_ERROR   0x08
    575 #define  RAM_TEST_INTRAM_ERROR 0x04
    576 #define  RAM_TEST_RISC_ERROR   0x02
    577 #define  RAM_TEST_SCSI_ERROR   0x01
    578 #define  RAM_TEST_SUCCESS      0x00
    579 #define PRE_TEST_VALUE        0x05
    580 #define NORMAL_VALUE          0x00
    581 
    582 /*
    583  * ASC38C1600 Definitions
    584  *
    585  * IOPB_PCI_INT_CFG Bit Field Definitions
    586  */
    587 
    588 #define INTAB_LD	0x80    /* Value loaded from EEPROM Bit 11. */
    589 
    590 /*
    591  * Bit 1 can be set to change the interrupt for the Function to operate in
    592  * Totem Pole mode. By default Bit 1 is 0 and the interrupt operates in
    593  * Open Drain mode. Both functions of the ASC38C1600 must be set to the same
    594  * mode, otherwise the operating mode is undefined.
    595  */
    596 #define TOTEMPOLE	0x02
    597 
    598 /*
    599  * Bit 0 can be used to change the Int Pin for the Function. The value is
    600  * 0 by default for both Functions with Function 0 using INT A and Function
    601  * B using INT B. For Function 0 if set, INT B is used. For Function 1 if set,
    602  * INT A is used.
    603  *
    604  * EEPROM Word 0 Bit 11 for each Function may change the initial Int Pin
    605  * value specified in the PCI Configuration Space.
    606  */
    607 #define INTAB		0x01
    608 
    609 
    610 #define ADW_MAX_TID                     15 /* max. target identifier */
    611 #define ADW_MAX_LUN                     7  /* max. logical unit number */
    612 
    613 
    614 /*
    615  * Adw Library Status Definitions
    616  */
    617 #define ADW_TRUE        1
    618 #define ADW_FALSE       0
    619 #define ADW_NOERROR     1
    620 #define ADW_SUCCESS     1
    621 #define ADW_BUSY        0
    622 #define ADW_ERROR       (-1)
    623 
    624 
    625 /*
    626  * Warning code values for AdwInitFrom*EEP() functions
    627  */
    628 #define ADW_WARN_BUSRESET_ERROR         0x0001 /* SCSI Bus Reset error */
    629 #define ADW_WARN_EEPROM_CHKSUM          0x0002 /* EEP check sum error */
    630 #define ADW_WARN_EEPROM_TERMINATION     0x0004 /* EEP termination bad field */
    631 #define ADW_WARN_SET_PCI_CONFIG_SPACE   0x0080 /* PCI config space set error */
    632 #define ADW_WARN_ERROR                  0xFFFF /* ADW_ERROR return */
    633 
    634 /*
    635  * Error code values for AdwInitAsc*Driver() functions
    636  */
    637 #define ADW_IERR_WRITE_EEPROM       0x0001 /* write EEPROM error */
    638 #define ADW_IERR_MCODE_CHKSUM       0x0002 /* micro code check sum error */
    639 #define ADW_IERR_NO_CARRIER         0x0004 /* No more carrier memory. */
    640 #define ADW_IERR_START_STOP_CHIP    0x0008 /* start/stop chip failed */
    641 #define ADW_IERR_CHIP_VERSION       0x0040 /* wrong chip version */
    642 #define ADW_IERR_SET_SCSI_ID        0x0080 /* set SCSI ID failed */
    643 #define ADW_IERR_HVD_DEVICE         0x0100 /* HVD attached to LVD connector. */
    644 #define ADW_IERR_BAD_SIGNATURE      0x0200 /* signature not found */
    645 #define ADW_IERR_ILLEGAL_CONNECTION 0x0400 /* Illegal cable connection */
    646 #define ADW_IERR_SINGLE_END_DEVICE  0x0800 /* Single-end used w/differential */
    647 #define ADW_IERR_REVERSED_CABLE     0x1000 /* Narrow flat cable reversed */
    648 #define ADW_IERR_BIST_PRE_TEST      0x2000 /* BIST pre-test error */
    649 #define ADW_IERR_BIST_RAM_TEST      0x4000 /* BIST RAM test error */
    650 #define ADW_IERR_BAD_CHIPTYPE       0x8000 /* Invalid 'chip_type' setting. */
    651 
    652 /*
    653  * BIOS LRAM variable absolute offsets.
    654  */
    655 #define BIOS_CODESEG    0x54
    656 #define BIOS_CODELEN    0x56
    657 #define BIOS_SIGNATURE  0x58
    658 #define BIOS_VERSION    0x5A
    659 
    660 /*
    661  * Chip Type flag values
    662  */
    663 #define ADW_CHIP_ASC3550          0x01   /* Ultra-Wide IC */
    664 #define ADW_CHIP_ASC38C0800       0x02   /* Ultra2-Wide/LVD IC */
    665 #define ADW_CHIP_ASC38C1600       0x03   /* Ultra3-Wide/LVD2 IC */
    666 
    667 /*
    668  * Adapter temporary configuration structure
    669  *
    670  * This structure can be discarded after initialization. Don't add
    671  * fields here needed after initialization.
    672  *
    673  * Field naming convention:
    674  *
    675  *  *_enable indicates the field enables or disables a feature. The
    676  *  value of the field is never reset.
    677  */
    678 typedef struct adw_dvc_cfg {
    679 	u_int16_t	disc_enable;	/* enable disconnection */
    680 	u_int8_t	chip_version;	/* chip version */
    681 	u_int8_t	termination;	/* Term. Ctrl. bits 6-5 of SCSI_CFG1 */
    682 	u_int16_t	pci_device_id;	/* PCI device code number */
    683 	u_int16_t	lib_version;	/* Adw Library version number */
    684 	u_int16_t	control_flag;	/* Microcode Control Flag */
    685 	u_int16_t	mcode_date;	/* Microcode date */
    686 	u_int16_t	mcode_version;	/* Microcode version */
    687 	u_int16_t	pci_slot_info;	/* high byte device/function number
    688 					   bits 7-3 device num.,
    689 					   bits 2-0 function num.
    690 					   low byte bus num. */
    691 	u_int16_t	serial1;	/* EEPROM serial number word 1 */
    692 	u_int16_t	serial2;	/* EEPROM serial number word 2 */
    693 	u_int16_t	serial3;	/* EEPROM serial number word 3 */
    694 } ADW_DVC_CFG;
    695 
    696 
    697 #define NO_OF_SG_PER_BLOCK              15
    698 
    699 typedef struct adw_sg_block {
    700 	u_int8_t	reserved1;
    701 	u_int8_t	reserved2;
    702 	u_int8_t	reserved3;
    703 	u_int8_t	sg_cnt;			/* Valid entries in block. */
    704 	u_int32_t	sg_ptr;			/* links to next sg block */
    705 	struct {
    706 		u_int32_t sg_addr;		/* SG element address */
    707 		u_int32_t sg_count;		/* SG element count */
    708 	} sg_list[NO_OF_SG_PER_BLOCK];
    709 } ADW_SG_BLOCK;
    710 
    711 
    712 /*
    713  * ADW_SCSI_REQ_Q - microcode request structure
    714  *
    715  * All fields in this structure up to byte 60 are used by the microcode.
    716  * The microcode makes assumptions about the size and ordering of fields
    717  * in this structure. Do not change the structure definition here without
    718  * coordinating the change with the microcode.
    719  */
    720 typedef struct adw_scsi_req_q {
    721 	u_int8_t	cntl;		/* Ucode flags and state (ADW_MC_QC_*). */
    722 	u_int8_t	target_cmd;
    723 	u_int8_t	target_id;	/* Device target identifier. */
    724 	u_int8_t	target_lun;	/* Device target logical unit number. */
    725 	u_int32_t	data_addr;	/* Data buffer physical address. */
    726 	u_int32_t	data_cnt;	/* Data count. Ucode sets to residual. */
    727 	u_int32_t	sense_addr;	/* Sense buffer physical address. */
    728 	u_int32_t	carr_ba;	/* Carrier p-address */
    729 	u_int8_t	mflag;		/* Adw Library flag field. */
    730 	u_int8_t	sense_len;	/* Auto-sense length. uCode sets to residual. */
    731 	u_int8_t	cdb_len;	/* SCSI CDB length. Must <= 16 bytes. */
    732 	u_int8_t	scsi_cntl;
    733 	u_int8_t	done_status;	/* Completion status. (see below) */
    734 	u_int8_t	scsi_status;	/* SCSI status byte. (see below) */
    735 	u_int8_t	host_status;	/* ,uCode host status. (see below) */
    736 	u_int8_t	sg_working_ix;	/* ,uCode working SG variable. */
    737 	u_int8_t	cdb[12];	/* SCSI CDB bytes 0-11. */
    738 	u_int32_t	sg_real_addr;	/* SG list physical address. */
    739 	u_int32_t	scsiq_rptr;	/* Internal pointer to ADW_SCSI_REQ_Q */
    740 	u_int8_t	cdb16[4];	/* SCSI CDB bytes 12-15. */
    741 	u_int32_t	ccb_ptr;	/* CCB Physical Address */
    742 	u_int32_t	carr_va;	/* Carrier v-address (unused) */
    743 	/*
    744 	 * End of microcode structure - 60 bytes. The rest of the structure
    745 	 * is used by the Adw Library and ignored by the microcode.
    746 	 */
    747 	struct scsi_sense_data *vsense_addr;	/* Sense buffer virtual address. */
    748 	u_char		*vdata_addr;	/* Data buffer virtual address. */
    749 } ADW_SCSI_REQ_Q;
    750 
    751 /*
    752  * ASC_SCSI_REQ_Q 'done_status' return values.
    753  */
    754 #define QD_NO_STATUS         0x00       /* Request not completed yet. */
    755 #define QD_NO_ERROR          0x01
    756 #define QD_ABORTED_BY_HOST   0x02
    757 #define QD_WITH_ERROR        0x04
    758 
    759 /*
    760  * ASC_SCSI_REQ_Q 'host_status' return values.
    761  */
    762 #define QHSTA_NO_ERROR              0x00
    763 #define QHSTA_M_SEL_TIMEOUT         0x11
    764 #define QHSTA_M_DATA_OVER_RUN       0x12
    765 #define QHSTA_M_UNEXPECTED_BUS_FREE 0x13
    766 #define QHSTA_M_QUEUE_ABORTED       0x15
    767 #define QHSTA_M_SXFR_SDMA_ERR       0x16 /* SXFR_STATUS SCSI DMA Error */
    768 #define QHSTA_M_SXFR_SXFR_PERR      0x17 /* SXFR_STATUS SCSI Bus Parity Error */
    769 #define QHSTA_M_RDMA_PERR           0x18 /* RISC PCI DMA parity error */
    770 #define QHSTA_M_SXFR_OFF_UFLW       0x19 /* SXFR_STATUS Offset Underflow */
    771 #define QHSTA_M_SXFR_OFF_OFLW       0x20 /* SXFR_STATUS Offset Overflow */
    772 #define QHSTA_M_SXFR_WD_TMO         0x21 /* SXFR_STATUS Watchdog Timeout */
    773 #define QHSTA_M_SXFR_DESELECTED     0x22 /* SXFR_STATUS Deselected */
    774 /* Note: QHSTA_M_SXFR_XFR_OFLW is identical to QHSTA_M_DATA_OVER_RUN. */
    775 #define QHSTA_M_SXFR_XFR_OFLW       0x12 /* SXFR_STATUS Transfer Overflow */
    776 #define QHSTA_M_SXFR_XFR_PH_ERR     0x24 /* SXFR_STATUS Transfer Phase Error */
    777 #define QHSTA_M_SXFR_UNKNOWN_ERROR  0x25 /* SXFR_STATUS Unknown Error */
    778 #define QHSTA_M_SCSI_BUS_RESET      0x30 /* Request aborted from SBR */
    779 #define QHSTA_M_SCSI_BUS_RESET_UNSOL 0x31 /* Request aborted from unsol. SBR */
    780 #define QHSTA_M_BUS_DEVICE_RESET    0x32 /* Request aborted from BDR */
    781 #define QHSTA_M_DIRECTION_ERR       0x35 /* Data Phase mismatch */
    782 #define QHSTA_M_DIRECTION_ERR_HUNG  0x36 /* Data Phase mismatch and bus hang */
    783 #define QHSTA_M_WTM_TIMEOUT         0x41
    784 #define QHSTA_M_BAD_CMPL_STATUS_IN  0x42
    785 #define QHSTA_M_NO_AUTO_REQ_SENSE   0x43
    786 #define QHSTA_M_AUTO_REQ_SENSE_FAIL 0x44
    787 #define QHSTA_M_INVALID_DEVICE      0x45 /* Bad target ID */
    788 #define QHSTA_M_FROZEN_TIDQ         0x46 /* TID Queue frozen. */
    789 #define QHSTA_M_SGBACKUP_ERROR      0x47 /* Scatter-Gather backup error */
    790 
    791 /*
    792  * ASC_SCSI_REQ_Q 'scsi_status' return values.
    793  */
    794 #define SCSI_STATUS_GOOD		0x00
    795 #define SCSI_STATUS_CHECK_CONDITION	0x02
    796 #define SCSI_STATUS_CONDITION_MET	0x04
    797 #define SCSI_STATUS_TARGET_BUSY		0x08
    798 #define SCSI_STATUS_INTERMID		0x10
    799 #define SCSI_STATUS_INTERMID_COND_MET	0x14
    800 #define SCSI_STATUS_RSERV_CONFLICT	0x18
    801 #define SCSI_STATUS_CMD_TERMINATED	0x22
    802 #define SCSI_STATUS_QUEUE_FULL		0x28
    803 
    804 
    805 /*
    806  * Adapter operation variable structure.
    807  *
    808  * One structure is required per host adapter.
    809  *
    810  * Field naming convention:
    811  *
    812  *  *_able indicates both whether a feature should be enabled or disabled
    813  *  and whether a device is capable of the feature. At initialization
    814  *  this field may be set, but later if a device is found to be incapable
    815  *  of the feature, the field is cleared.
    816  */
    817 #define	CCB_HASH_SIZE	32	/* hash table size for phystokv */
    818 #define	CCB_HASH_SHIFT	9
    819 #define CCB_HASH(x)	((((x)) >> CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1))
    820 
    821 typedef struct adw_softc {
    822 
    823 	device_t		sc_dev;
    824 
    825 	bus_space_tag_t		sc_iot;
    826 	bus_space_handle_t	sc_ioh;
    827 	bus_dma_tag_t		sc_dmat;
    828 	bus_dmamap_t		sc_dmamap_control; /* maps the control structures */
    829 	bus_dmamap_t		sc_dmamap_carrier; /* maps the carrier structures */
    830 	void			*sc_ih;
    831 
    832 	struct adw_control	*sc_control; /* control structures */
    833 
    834 	struct adw_ccb		*sc_ccbhash[CCB_HASH_SIZE];
    835 	TAILQ_HEAD(, adw_ccb)	sc_free_ccb, sc_waiting_ccb;
    836 	TAILQ_HEAD(adw_pending_ccb, adw_ccb)	sc_pending_ccb;
    837 	struct scsipi_adapter   sc_adapter;
    838 	struct scsipi_channel   sc_channel;
    839 
    840 	int			sc_freeze_dev[ADW_MAX_TID+1];
    841 
    842 	/* pointers to functions, called in AdwISR() */
    843 	void (*isr_callback)(struct adw_softc *, ADW_SCSI_REQ_Q *);
    844 	void (*async_callback)(struct adw_softc *, u_int8_t);
    845 
    846 	u_int16_t	bios_ctrl;	/* BIOS control word, EEPROM word 12 */
    847 	u_int16_t	wdtr_able;	/* try WDTR for a device */
    848 	u_int16_t	sdtr_able;	/* try SDTR for a device */
    849 	u_int16_t	ultra_able;	/* try SDTR Ultra speed for a device */
    850 	u_int16_t	sdtr_speed1;	/* EEPROM SDTR Speed for TID 0-3   */
    851 	u_int16_t	sdtr_speed2;	/* EEPROM SDTR Speed for TID 4-7   */
    852 	u_int16_t	sdtr_speed3;	/* EEPROM SDTR Speed for TID 8-11  */
    853 	u_int16_t	sdtr_speed4;	/* EEPROM SDTR Speed for TID 12-15 */
    854 	u_int16_t	tagqng_able;	/* try tagged queuing with a device */
    855 	u_int16_t	ppr_able;	/* PPR message capable per TID bitmask. */
    856 	u_int16_t	start_motor;	/* start motor command allowed */
    857 	u_int8_t	max_dvc_qng;	/* maximum number of tagged commands per device */
    858 	u_int8_t	scsi_reset_wait; /* delay in seconds after scsi bus reset */
    859 	u_int8_t	chip_no; 	/* should be assigned by caller */
    860 	u_int8_t	max_host_qng;	/* maximum number of Q'ed command allowed */
    861 	u_int8_t	irq_no;  	/* IRQ number */
    862 	u_int8_t	chip_type;	/* chip SCSI target ID */
    863 	u_int16_t	no_scam; 	/* scam_tolerant of EEPROM */
    864 	u_int32_t	drv_ptr; 	/* driver pointer to private structure */
    865 	u_int8_t	chip_scsi_id;	/* chip SCSI target ID */
    866 	u_int8_t	bist_err_code;
    867 	u_int16_t	carr_pending_cnt;  /* Count of pending carriers. */
    868 	struct adw_carrier	*carr_freelist;	/* Carrier free list. */
    869 	struct adw_carrier	*icq_sp; /* Initiator command queue stopper pointer. */
    870 	struct adw_carrier	*irq_sp; /* Initiator response queue stopper pointer. */
    871  /*
    872   * Note: The following fields will not be used after initialization. The
    873   * driver may discard the buffer after initialization is done.
    874   */
    875   ADW_DVC_CFG cfg; /* temporary configuration structure  */
    876 } ADW_SOFTC;
    877 
    878 
    879 /*
    880  * Microcode idle loop commands
    881  */
    882 #define IDLE_CMD_COMPLETED           0
    883 #define IDLE_CMD_STOP_CHIP           0x0001
    884 #define IDLE_CMD_STOP_CHIP_SEND_INT  0x0002
    885 #define IDLE_CMD_SEND_INT            0x0004
    886 #define IDLE_CMD_ABORT               0x0008
    887 #define IDLE_CMD_DEVICE_RESET        0x0010
    888 #define IDLE_CMD_SCSI_RESET_START    0x0020 /* Assert SCSI Bus Reset */
    889 #define IDLE_CMD_SCSI_RESET_END      0x0040 /* Deassert SCSI Bus Reset */
    890 #define IDLE_CMD_SCSIREQ             0x0080
    891 
    892 #define IDLE_CMD_STATUS_SUCCESS      0x0001
    893 #define IDLE_CMD_STATUS_FAILURE      0x0002
    894 
    895 /*
    896  * AdwSendIdleCmd() flag definitions.
    897  */
    898 #define ADW_NOWAIT     0x01
    899 
    900 /*
    901  * Wait loop time out values.
    902  */
    903 #define SCSI_WAIT_10_SEC             10UL    /* 10 seconds */
    904 #define SCSI_WAIT_100_MSEC           100UL   /* 100 milliseconds */
    905 #define SCSI_US_PER_MSEC             1000    /* microseconds per millisecond */
    906 #define SCSI_MS_PER_SEC              1000UL  /* milliseconds per second */
    907 #define SCSI_MAX_RETRY               10      /* retry count */
    908 
    909 #define ADV_ASYNC_RDMA_FAILURE          0x01 /* Fatal RDMA failure. */
    910 #define ADV_ASYNC_SCSI_BUS_RESET_DET    0x02 /* Detected SCSI Bus Reset. */
    911 #define ADV_ASYNC_CARRIER_READY_FAILURE 0x03 /* Carrier Ready failure. */
    912 
    913 #define ADV_HOST_SCSI_BUS_RESET      0x80 /* Host Initiated SCSI Bus Reset. */
    914 
    915 
    916 /* Read byte from a register. */
    917 #define ADW_READ_BYTE_REGISTER(iot, ioh, reg_off) \
    918 	bus_space_read_1((iot), (ioh), (reg_off))
    919 
    920 /* Write byte to a register. */
    921 #define ADW_WRITE_BYTE_REGISTER(iot, ioh, reg_off, byte) \
    922 	bus_space_write_1((iot), (ioh), (reg_off), (byte))
    923 
    924 /* Read word (2 bytes) from a register. */
    925 #define ADW_READ_WORD_REGISTER(iot, ioh, reg_off) \
    926 	bus_space_read_2((iot), (ioh), (reg_off))
    927 
    928 /* Write word (2 bytes) to a register. */
    929 #define ADW_WRITE_WORD_REGISTER(iot, ioh, reg_off, word) \
    930 	bus_space_write_2((iot), (ioh), (reg_off), (word))
    931 
    932 /* Write double word (4 bytes) to a register. */
    933 #define ADW_WRITE_DWORD_REGISTER(iot, ioh, reg_off, dword) \
    934 	bus_space_write_4((iot), (ioh), (reg_off), (dword))
    935 
    936 /* Read byte from LRAM. */
    937 #define ADW_READ_BYTE_LRAM(iot, ioh, addr, byte)		\
    938 do {								\
    939 	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr));	\
    940 	(byte) = bus_space_read_1((iot), (ioh), IOPB_RAM_DATA);	\
    941 } while (0)
    942 
    943 /* Write byte to LRAM. */
    944 #define ADW_WRITE_BYTE_LRAM(iot, ioh, addr, byte)		\
    945 do {								\
    946 	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr));	\
    947 	bus_space_write_1((iot), (ioh), IOPB_RAM_DATA, (byte));	\
    948 } while (0)
    949 
    950 /* Read word (2 bytes) from LRAM. */
    951 #define ADW_READ_WORD_LRAM(iot, ioh, addr, word)		\
    952 do {								\
    953 	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr));	\
    954 	(word) = bus_space_read_2((iot), (ioh), IOPW_RAM_DATA);	\
    955 } while (0)
    956 
    957 /* Write word (2 bytes) to LRAM. */
    958 #define ADW_WRITE_WORD_LRAM(iot, ioh, addr, word)		\
    959 do {								\
    960 	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr));	\
    961 	bus_space_write_2((iot), (ioh), IOPW_RAM_DATA, (word));	\
    962 } while (0)
    963 
    964 /* Write double word (4 bytes) to LRAM */
    965 /* Because of unspecified C language ordering don't use auto-increment. */
    966 #define ADW_WRITE_DWORD_LRAM(iot, ioh, addr, dword)			\
    967 do {									\
    968 	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr));		\
    969 	bus_space_write_2((iot), (ioh), IOPW_RAM_DATA,			\
    970 		(u_int16_t) ((dword) & 0xFFFF));			\
    971 	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr) + 2);	\
    972 	bus_space_write_2((iot), (ioh), IOPW_RAM_DATA,			\
    973 		(u_int16_t) ((dword >> 16) & 0xFFFF));			\
    974 } while (0)
    975 
    976 /* Read word (2 bytes) from LRAM assuming that the address is already set. */
    977 #define ADW_READ_WORD_AUTO_INC_LRAM(iot, ioh) \
    978 	bus_space_read_2((iot), (ioh), IOPW_RAM_DATA) \
    979 
    980 /* Write word (2 bytes) to LRAM assuming that the address is already set. */
    981 #define ADW_WRITE_WORD_AUTO_INC_LRAM(iot, ioh, word) \
    982 	bus_space_write_2((iot), (ioh), IOPW_RAM_DATA, (word))
    983 
    984 /*
    985  * Define macro to check for Condor signature.
    986  *
    987  * Evaluate to ADW_TRUE if a Condor chip is found the specified port
    988  * address 'iop_base'. Otherwise evalue to ADW_FALSE.
    989  */
    990 #define ADW_FIND_SIGNATURE(iot, ioh)					 \
    991 	(((ADW_READ_BYTE_REGISTER((iot), (ioh), IOPB_CHIP_ID_1) ==	 \
    992 		ADW_CHIP_ID_BYTE) &&					 \
    993 		(ADW_READ_WORD_REGISTER((iot), (ioh), IOPW_CHIP_ID_0) == \
    994 		ADW_CHIP_ID_WORD)) ?  ADW_TRUE : ADW_FALSE)
    995 
    996 /*
    997  * Define macro to Return the version number of the chip at 'iop_base'.
    998  *
    999  * The second parameter 'bus_type' is currently unused.
   1000  */
   1001 #define ADW_GET_CHIP_VERSION(iot, ioh, bus_type) \
   1002 	ADW_READ_BYTE_REGISTER((iot), (ioh), IOPB_CHIP_TYPE_REV)
   1003 
   1004 /*
   1005  * Abort an SRB in the chip's RISC Memory. The 'srb_ptr' argument must
   1006  * match the ASC_SCSI_REQ_Q 'srb_ptr' field.
   1007  *
   1008  * If the request has not yet been sent to the device it will simply be
   1009  * aborted from RISC memory. If the request is disconnected it will be
   1010  * aborted on reselection by sending an Abort Message to the target ID.
   1011  *
   1012  * Return value:
   1013  *      ADW_TRUE(1) - Queue was successfully aborted.
   1014  *      ADW_FALSE(0) - Queue was not found on the active queue list.
   1015  */
   1016 #define ADW_ABORT_CCB(sc, ccb_ptr) \
   1017 	AdwSendIdleCmd((sc), (u_int16_t) IDLE_CMD_ABORT, (ccb_ptr)->hashkey)
   1018 
   1019 /*
   1020  * Send a Bus Device Reset Message to the specified target ID.
   1021  *
   1022  * All outstanding commands will be purged if sending the
   1023  * Bus Device Reset Message is successful.
   1024  *
   1025  * Return Value:
   1026  *      ADW_TRUE(1) - All requests on the target are purged.
   1027  *      ADW_FALSE(0) - Couldn't issue Bus Device Reset Message; Requests
   1028  *                     are not purged.
   1029  */
   1030 #define ADW_RESET_DEVICE(sc, target_id) \
   1031 	AdwSendIdleCmd((sc), (u_int16_t) IDLE_CMD_DEVICE_RESET, (target_id), 0)
   1032 
   1033 /*
   1034  * SCSI Wide Type definition.
   1035  */
   1036 #define ADW_SCSI_BIT_ID_TYPE   u_int16_t
   1037 
   1038 /*
   1039  * AdwInitScsiTarget() 'cntl_flag' options.
   1040  */
   1041 #define ADW_SCAN_LUN           0x01
   1042 #define ADW_CAPINFO_NOLUN      0x02
   1043 
   1044 /*
   1045  * Convert target id to target id bit mask.
   1046  */
   1047 #define ADW_TID_TO_TIDMASK(tid)   (0x01 << ((tid) & ADW_MAX_TID))
   1048 
   1049 /*
   1050  * Adv Library functions available to drivers.
   1051  */
   1052 
   1053 int	AdwInitFromEEPROM(ADW_SOFTC *);
   1054 int	AdwInitDriver(ADW_SOFTC *);
   1055 int	AdwExeScsiQueue(ADW_SOFTC *, ADW_SCSI_REQ_Q *);
   1056 int	AdwISR(ADW_SOFTC *);
   1057 void	AdwResetChip(bus_space_tag_t, bus_space_handle_t);
   1058 int	AdwSendIdleCmd(ADW_SOFTC *, u_int16_t, u_int32_t);
   1059 int	AdwResetSCSIBus(ADW_SOFTC *);
   1060 int	AdwResetCCB(ADW_SOFTC *);
   1061 
   1062 #endif	/* _ADVANSYS_WIDE_LIBRARY_H_ */
   1063