1/* $NetBSD: ncr53c9xreg.h,v 1.15 2005/12/11 12:21:28 christos Exp $ */ 2 3/* 4 * Copyright (c) 1994 Peter Galbavy. All rights reserved. 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 Peter Galbavy. 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 * Register addresses, relative to some base address 34 */ 35 36#define NCR_TCL 0x00 /* RW - Transfer Count Low */ 37#define NCR_TCM 0x01 /* RW - Transfer Count Mid */ 38#define NCR_TCH 0x0e /* RW - Transfer Count High */ 39 /* NOT on 53C90 */ 40 41#define NCR_FIFO 0x02 /* RW - FIFO data */ 42 43#define NCR_CMD 0x03 /* RW - Command (2 deep) */ 44#define NCRCMD_DMA 0x80 /* DMA Bit */ 45#define NCRCMD_NOP 0x00 /* No Operation */ 46#define NCRCMD_FLUSH 0x01 /* Flush FIFO */ 47#define NCRCMD_RSTCHIP 0x02 /* Reset Chip */ 48#define NCRCMD_RSTSCSI 0x03 /* Reset SCSI Bus */ 49#define NCRCMD_RESEL 0x40 /* Reselect Sequence */ 50#define NCRCMD_SELNATN 0x41 /* Select without ATN */ 51#define NCRCMD_SELATN 0x42 /* Select with ATN */ 52#define NCRCMD_SELATNS 0x43 /* Select with ATN & Stop */ 53#define NCRCMD_ENSEL 0x44 /* Enable (Re)Selection */ 54#define NCRCMD_DISSEL 0x45 /* Disable (Re)Selection */ 55#define NCRCMD_SELATN3 0x46 /* Select with ATN3 */ 56#define NCRCMD_RESEL3 0x47 /* Reselect3 Sequence */ 57#define NCRCMD_SNDMSG 0x20 /* Send Message */ 58#define NCRCMD_SNDSTAT 0x21 /* Send Status */ 59#define NCRCMD_SNDDATA 0x22 /* Send Data */ 60#define NCRCMD_DISCSEQ 0x23 /* Disconnect Sequence */ 61#define NCRCMD_TERMSEQ 0x24 /* Terminate Sequence */ 62#define NCRCMD_TCCS 0x25 /* Target Command Comp Seq */ 63#define NCRCMD_DISC 0x27 /* Disconnect */ 64#define NCRCMD_RECMSG 0x28 /* Receive Message */ 65#define NCRCMD_RECCMD 0x29 /* Receive Command */ 66#define NCRCMD_RECDATA 0x2a /* Receive Data */ 67#define NCRCMD_RECCSEQ 0x2b /* Receive Command Sequence*/ 68#define NCRCMD_ABORT 0x04 /* Target Abort DMA */ 69#define NCRCMD_TRANS 0x10 /* Transfer Information */ 70#define NCRCMD_ICCS 0x11 /* Initiator Cmd Comp Seq */ 71#define NCRCMD_MSGOK 0x12 /* Message Accepted */ 72#define NCRCMD_TRPAD 0x18 /* Transfer Pad */ 73#define NCRCMD_SETATN 0x1a /* Set ATN */ 74#define NCRCMD_RSTATN 0x1b /* Reset ATN */ 75 76#define NCR_STAT 0x04 /* RO - Status */ 77#define NCRSTAT_INT 0x80 /* Interrupt */ 78#define NCRSTAT_GE 0x40 /* Gross Error */ 79#define NCRSTAT_PE 0x20 /* Parity Error */ 80#define NCRSTAT_TC 0x10 /* Terminal Count */ 81#define NCRSTAT_VGC 0x08 /* Valid Group Code */ 82#define NCRSTAT_PHASE 0x07 /* Phase bits */ 83 84#define NCR_SELID 0x04 /* WO - Select/Reselect Bus ID */ 85#define NCR_BUSID_HME 0x10 /* XXX HME reselect ID */ 86#define NCR_BUSID_HME32 0x40 /* XXX HME to select more than 16 */ 87 88#define NCR_INTR 0x05 /* RO - Interrupt */ 89#define NCRINTR_SBR 0x80 /* SCSI Bus Reset */ 90#define NCRINTR_ILL 0x40 /* Illegal Command */ 91#define NCRINTR_DIS 0x20 /* Disconnect */ 92#define NCRINTR_BS 0x10 /* Bus Service */ 93#define NCRINTR_FC 0x08 /* Function Complete */ 94#define NCRINTR_RESEL 0x04 /* Reselected */ 95#define NCRINTR_SELATN 0x02 /* Select with ATN */ 96#define NCRINTR_SEL 0x01 /* Selected */ 97 98#define NCR_TIMEOUT 0x05 /* WO - Select/Reselect Timeout */ 99 100#define NCR_STEP 0x06 /* RO - Sequence Step */ 101#define NCRSTEP_MASK 0x07 /* the last 3 bits */ 102#define NCRSTEP_DONE 0x04 /* command went out */ 103 104#define NCR_SYNCTP 0x06 /* WO - Synch Transfer Period */ 105 /* Default 5 (53C9X) */ 106 107#define NCR_FFLAG 0x07 /* RO - FIFO Flags */ 108#define NCRFIFO_SS 0xe0 /* Sequence Step (Dup) */ 109#define NCRFIFO_FF 0x1f /* Bytes in FIFO */ 110 111#define NCR_SYNCOFF 0x07 /* WO - Synch Offset */ 112 /* 0 = ASYNC */ 113 /* 1 - 15 = SYNC bytes */ 114 115#define NCR_CFG1 0x08 /* RW - Configuration #1 */ 116#define NCRCFG1_SLOW 0x80 /* Slow Cable Mode */ 117#define NCRCFG1_SRR 0x40 /* SCSI Reset Rep Int Dis */ 118#define NCRCFG1_PTEST 0x20 /* Parity Test Mod */ 119#define NCRCFG1_PARENB 0x10 /* Enable Parity Check */ 120#define NCRCFG1_CTEST 0x08 /* Enable Chip Test */ 121#define NCRCFG1_BUSID 0x07 /* Bus ID */ 122 123#define NCR_CCF 0x09 /* WO - Clock Conversion Factor */ 124 /* 0 = 35.01 - 40MHz */ 125 /* NEVER SET TO 1 */ 126 /* 2 = 10MHz */ 127 /* 3 = 10.01 - 15MHz */ 128 /* 4 = 15.01 - 20MHz */ 129 /* 5 = 20.01 - 25MHz */ 130 /* 6 = 25.01 - 30MHz */ 131 /* 7 = 30.01 - 35MHz */ 132 133#define NCR_TEST 0x0a /* WO - Test (Chip Test Only) */ 134 135#define NCR_CFG2 0x0b /* RW - Configuration #2 */ 136#define NCRCFG2_RSVD 0xa0 /* reserved */ 137#define NCRCFG2_FE 0x40 /* Features Enable */ 138#define NCRCFG2_DREQ 0x10 /* DREQ High Impedance */ 139#define NCRCFG2_SCSI2 0x08 /* SCSI-2 Enable */ 140#define NCRCFG2_BPA 0x04 /* Target Bad Parity Abort */ 141#define NCRCFG2_RPE 0x02 /* Register Parity Error */ 142#define NCRCFG2_DPE 0x01 /* DMA Parity Error */ 143 144#define NCRCFG2_HMEFE 0x10 /* HME feature enable */ 145#define NCRCFG2_HME32 0x80 /* HME 32 extended */ 146 147/* Config #3 only on 53C9X */ 148#define NCR_CFG3 0x0c /* RW - Configuration #3 */ 149#define NCRCFG3_RSVD 0xe0 /* reserved */ 150#define NCRCFG3_IDM 0x10 /* ID Message Res Check */ 151#define NCRCFG3_QTE 0x08 /* Queue Tag Enable */ 152#define NCRCFG3_CDB 0x04 /* CDB 10-bytes OK */ 153#define NCRCFG3_FSCSI 0x02 /* Fast SCSI */ 154#define NCRCFG3_FCLK 0x01 /* Fast Clock (>25MHz) */ 155 156/* 157 * For some unknown reason, the ESP406/FAS408 looks like every 158 * other ncr53c9x, except for configuration #3 register. At any 159 * rate, if you're dealing with these chips, you need to use these 160 * defines instead. 161 */ 162 163/* Config #3 different on ESP406/FAS408 */ 164#define NCR_ESPCFG3 0x0c /* RW - Configuration #3 */ 165#define NCRESPCFG3_IDM 0x80 /* ID Message Res Check */ 166#define NCRESPCFG3_QTE 0x40 /* Queue Tag Enable */ 167#define NCRESPCFG3_CDB 0x20 /* CDB 10-bytes OK */ 168#define NCRESPCFG3_FSCSI 0x10 /* Fast SCSI */ 169#define NCRESPCFG3_SRESB 0x08 /* Save Residual Byte */ 170#define NCRESPCFG3_FCLK 0x04 /* Fast Clock (>25MHz) */ 171#define NCRESPCFG3_ADMA 0x02 /* Alternate DMA Mode */ 172#define NCRESPCFG3_T8M 0x01 /* Threshold 8 Mode */ 173 174/* Config #3 also different on NCR53CF9x/FAS216 */ 175#define NCR_F9XCFG3 0x0c /* RW - Configuration #3 */ 176#define NCRF9XCFG3_IDM 0x80 /* ID Message Res Check */ 177#define NCRF9XCFG3_QTE 0x40 /* Queue Tag Enable */ 178#define NCRF9XCFG3_CDB 0x20 /* CDB 10-bytes OK */ 179#define NCRF9XCFG3_FSCSI 0x10 /* Fast SCSI */ 180#define NCRF9XCFG3_FCLK 0x08 /* Fast Clock (>25MHz) */ 181#define NCRF9XCFG3_SRESB 0x04 /* Save Residual Byte */ 182#define NCRF9XCFG3_ADMA 0x02 /* Alternate DMA Mode */ 183#define NCRF9XCFG3_T8M 0x01 /* Threshold 8 Mode */ 184 185/* Config #3 on FAS366 */ 186#define NCRFASCFG3_OBAUTO 0x80 /* auto push odd-byte to DMA */ 187#define NCRFASCFG3_EWIDE 0x40 /* Enable Wide-SCSI */ 188#define NCRFASCFG3_IDBIT3 0x20 /* Bit 3 of HME SCSI-ID */ 189#define NCRFASCFG3_IDRESCHK 0x10 /* ID message checking */ 190#define NCRFASCFG3_QUENB 0x08 /* 3-byte msg support */ 191#define NCRFASCFG3_CDB10 0x04 /* group 2 scsi-2 support */ 192#define NCRFASCFG3_FASTSCSI 0x02 /* 10 MB/S fast scsi mode */ 193#define NCRFASCFG3_FASTCLK 0x01 /* fast clock mode */ 194 195/* Config #4 only on ESP406/FAS408 */ 196#define NCR_CFG4 0x0d /* RW - Configuration #4 */ 197#define NCRCFG4_CRS1 0x80 /* Select register set #1 */ 198#define NCRCFG4_RSVD 0x7b /* reserved */ 199#define NCRCFG4_ACTNEG 0x04 /* Active negation */ 200 201/* 202 The following registers are only on the ESP406/FAS408. The 203 documentation refers to them as "Control Register Set #1". 204 These are the registers that are visible when bit 7 of 205 register 0x0d is set. This bit is common to both register sets. 206*/ 207 208#define NCR_JMP 0x00 /* RO - Jumper Sense Register */ 209#define NCRJMP_RSVD 0xc0 /* reserved */ 210#define NCRJMP_ROMSZ 0x20 /* ROM Size 1=16K, 0=32K */ 211#define NCRJMP_J4 0x10 /* Jumper #4 */ 212#define NCRJMP_J3 0x08 /* Jumper #3 */ 213#define NCRJMP_J2 0x04 /* Jumper #2 */ 214#define NCRJMP_J1 0x02 /* Jumper #1 */ 215#define NCRJMP_J0 0x01 /* Jumper #0 */ 216 217#define NCR_PIOFIFO 0x04 /* WO - PIO FIFO, 4 bytes deep */ 218 219#define NCR_PSTAT 0x08 /* RW - PIO Status Register */ 220#define NCRPSTAT_PERR 0x80 /* PIO Error */ 221#define NCRPSTAT_SIRQ 0x40 /* Active High of SCSI IRQ */ 222#define NCRPSTAT_ATAI 0x20 /* ATA IRQ */ 223#define NCRPSTAT_FEMPT 0x10 /* PIO FIFO Empty */ 224#define NCRPSTAT_F13 0x08 /* PIO FIFO 1/3 */ 225#define NCRPSTAT_F23 0x04 /* PIO FIFO 2/3 */ 226#define NCRPSTAT_FFULL 0x02 /* PIO FIFO Full */ 227#define NCRPSTAT_PIOM 0x01 /* PIO/DMA Mode */ 228 229#define NCR_PIOI 0x0b /* RW - PIO Interrupt Enable */ 230#define NCRPIOI_RSVD 0xe0 /* reserved */ 231#define NCRPIOI_EMPTY 0x10 /* IRQ When Empty */ 232#define NCRPIOI_13 0x08 /* IRQ When 1/3 */ 233#define NCRPIOI_23 0x04 /* IRQ When 2/3 */ 234#define NCRPIOI_FULL 0x02 /* IRQ When Full */ 235#define NCRPIOI_FINV 0x01 /* Flag Invert */ 236 237#define NCR_CFG5 0x0d /* RW - Configuration #5 */ 238#define NCRCFG5_CRS1 0x80 /* Select Register Set #1 */ 239#define NCRCFG5_SRAM 0x40 /* SRAM Memory Map */ 240#define NCRCFG5_AADDR 0x20 /* Auto Address */ 241#define NCRCFG5_PTRINC 0x10 /* Pointer Increment */ 242#define NCRCFG5_LOWPWR 0x08 /* Low Power Mode */ 243#define NCRCFG5_SINT 0x04 /* SCSI Interrupt Enable */ 244#define NCRCFG5_INTP 0x02 /* INT Polarity */ 245#define NCRCFG5_AINT 0x01 /* ATA Interrupt Enable */ 246 247#define NCR_SIGNTR 0x0e /* RO - Signature */ 248 249/* Am53c974 Config #3 */ 250#define NCR_AMDCFG3 0x0c /* RW - Configuration #3 */ 251#define NCRAMDCFG3_IDM 0x80 /* ID Message Res Check */ 252#define NCRAMDCFG3_QTE 0x40 /* Queue Tag Enable */ 253#define NCRAMDCFG3_CDB 0x20 /* CDB 10-bytes OK */ 254#define NCRAMDCFG3_FSCSI 0x10 /* Fast SCSI */ 255#define NCRAMDCFG3_FCLK 0x08 /* Fast Clock (40MHz) */ 256#define NCRAMDCFG3_RSVD 0x07 /* Reserved */ 257 258/* Am53c974 Config #4 */ 259#define NCR_AMDCFG4 0x0d /* RW - Configuration #4 */ 260#define NCRAMDCFG4_GE 0xc0 /* Glitch Eater */ 261#define NCRAMDCFG4_GE12NS 0x00 /* Signal window 12ns */ 262#define NCRAMDCFG4_GE25NS 0x80 /* Signal window 25ns */ 263#define NCRAMDCFG4_GE35NS 0x40 /* Signal window 35ns */ 264#define NCRAMDCFG4_GE0NS 0xc0 /* Signal window 0ns */ 265#define NCRAMDCFG4_PWD 0x20 /* Reduced power feature */ 266#define NCRAMDCFG4_RSVD 0x13 /* Reserved */ 267#define NCRAMDCFG4_RAE 0x08 /* Active neg. REQ/ACK */ 268#define NCRAMDCFG4_RADE 0x04 /* Active neg. REQ/ACK/DAT */ 269 270/* 271 * FAS366 272 */ 273#define NCR_RCL NCR_TCH /* Recommand counter low */ 274#define NCR_RCH 0xf /* Recommand counter high */ 275#define NCR_UID NCR_RCL /* fas366 part-uniq id */ 276 277 278/* status register #2 definitions (read only) */ 279#define NCR_STAT2 NCR_CCF 280#define NCRFAS_STAT2_SEQCNT 0x01 /* Sequence counter bit 7-3 enabled */ 281#define NCRFAS_STAT2_FLATCHED 0x02 /* FIFO flags register latched */ 282#define NCRFAS_STAT2_CLATCHED 0x04 /* Xfer cntr & recommand ctr latched */ 283#define NCRFAS_STAT2_CACTIVE 0x08 /* Command register is active */ 284#define NCRFAS_STAT2_SCSI16 0x10 /* SCSI interface is wide */ 285#define NCRFAS_STAT2_ISHUTTLE 0x20 /* FIFO Top register contains 1 byte */ 286#define NCRFAS_STAT2_OSHUTTLE 0x40 /* next byte from FIFO is MSB */ 287#define NCRFAS_STAT2_EMPTY 0x80 /* FIFO is empty */ 288 289