aic7xxxvar.h revision 1.11
1 /* $NetBSD: aic7xxxvar.h,v 1.11 1996/12/02 19:06:44 thorpej Exp $ */ 2 3 /* 4 * Interface to the generic driver for the aic7xxx based adaptec 5 * SCSI controllers. This is used to implement product specific 6 * probe and attach routines. 7 * 8 * Copyright (c) 1994, 1995, 1996 Justin T. Gibbs. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice immediately at the beginning of the file, without modification, 16 * 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 * 3. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 27 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from Id: aic7xxx.h,v 1.28 1996/05/30 07:19:59 gibbs Exp 36 */ 37 38 #ifndef _AIC7XXX_H_ 39 #define _AIC7XXX_H_ 40 41 #if defined(__FreeBSD__) 42 #include "ahc.h" /* for NAHC from config */ 43 #endif 44 45 #if defined(__NetBSD__) 46 /* 47 * convert FreeBSD's <sys/queue.h> symbols to NetBSD's 48 */ 49 #define STAILQ_ENTRY SIMPLEQ_ENTRY 50 #define STAILQ_HEAD SIMPLEQ_HEAD 51 #define STAILQ_INIT SIMPLEQ_INIT 52 #define STAILQ_INSERT_HEAD SIMPLEQ_INSERT_HEAD 53 #define STAILQ_INSERT_TAIL SIMPLEQ_INSERT_TAIL 54 #define STAILQ_REMOVE_HEAD(head, field) \ 55 SIMPLEQ_REMOVE_HEAD(head, (head)->sqh_first, field) 56 #define stqh_first sqh_first 57 #define stqe_next sqe_next 58 #endif 59 60 #if defined(__FreeBSD__) 61 #define AHC_INB(ahc, port) \ 62 inb((ahc)->baseport+(port)) 63 #define AHC_INSB(ahc, port, valp, size) \ 64 insb((ahc)->baseport+(port), valp, size) 65 #define AHC_OUTB(ahc, port, val) \ 66 outb((ahc)->baseport+(port), val) 67 #define AHC_OUTSB(ahc, port, valp, size) \ 68 outsb((ahc)->baseport+(port), valp, size) 69 #define AHC_OUTSL(ahc, port, valp, size) \ 70 outsl((ahc)->baseport+(port), valp, size) 71 #elif defined(__NetBSD__) 72 #define AHC_INB(ahc, port) \ 73 bus_space_read_1((ahc)->sc_iot, (ahc)->sc_ioh, port) 74 #define AHC_INSB(ahc, port, valp, size) \ 75 bus_space_read_multi_1((ahc)->sc_iot, (ahc)->sc_ioh, port, valp, size) 76 #define AHC_OUTB(ahc, port, val) \ 77 bus_space_write_1((ahc)->sc_iot, (ahc)->sc_ioh, port, val) 78 #define AHC_OUTSB(ahc, port, valp, size) \ 79 bus_space_write_multi_1((ahc)->sc_iot, (ahc)->sc_ioh, port, valp, size) 80 #define AHC_OUTSL(ahc, port, valp, size) \ 81 bus_space_write_multi_4((ahc)->sc_iot, (ahc)->sc_ioh, port, valp, size) 82 #endif 83 84 #define AHC_NSEG 256 /* number of dma segments supported */ 85 86 #define AHC_SCB_MAX 255 /* 87 * Up to 255 SCBs on some types of aic7xxx 88 * based boards. The aic7870 have 16 internal 89 * SCBs, but external SRAM bumps this to 255. 90 * The aic7770 family have only 4, and the 91 * aic7850 has only 3. 92 */ 93 94 95 typedef u_int32_t physaddr; 96 #if defined(__FreeBSD__) 97 extern u_long ahc_unit; 98 #endif 99 100 struct ahc_dma_seg { 101 physaddr addr; 102 u_int32_t len; 103 }; 104 105 typedef enum { 106 AHC_NONE = 0x000, 107 AHC_ULTRA = 0x001, /* Supports 20MHz Transfers */ 108 AHC_WIDE = 0x002, /* Wide Channel */ 109 AHC_TWIN = 0x008, /* Twin Channel */ 110 AHC_AIC7770 = 0x010, 111 AHC_AIC7850 = 0x020, 112 AHC_AIC7860 = 0x021, /* ULTRA version of the aic7850 */ 113 AHC_AIC7870 = 0x040, 114 AHC_AIC7880 = 0x041, 115 AHC_AIC78X0 = 0x060, /* PCI Based Controller */ 116 AHC_274 = 0x110, /* EISA Based Controller */ 117 AHC_284 = 0x210, /* VL/ISA Based Controller */ 118 AHC_294AU = 0x421, /* aic7860 based '2940' */ 119 AHC_294 = 0x440, /* PCI Based Controller */ 120 AHC_294U = 0x441, /* ULTRA PCI Based Controller */ 121 AHC_394 = 0x840, /* Twin Channel PCI Controller */ 122 AHC_394U = 0x841, /* Twin, ULTRA Channel PCI Controller */ 123 }ahc_type; 124 125 typedef enum { 126 AHC_FNONE = 0x00, 127 AHC_INIT = 0x01, 128 AHC_RUNNING = 0x02, 129 AHC_PAGESCBS = 0x04, /* Enable SCB paging */ 130 AHC_CHANNEL_B_PRIMARY = 0x08, /* 131 * On twin channel adapters, probe 132 * channel B first since it is the 133 * primary bus. 134 */ 135 AHC_USEDEFAULTS = 0x10, /* 136 * For cards without an seeprom 137 * or a BIOS to initialize the chip's 138 * SRAM, we use the default target 139 * settings. 140 */ 141 AHC_CHNLB = 0x20, /* 142 * Second controller on 3940 143 * Also encodes the offset in the 144 * SEEPROM for CHNLB info (32) 145 */ 146 }ahc_flag; 147 148 typedef enum { 149 SCB_FREE = 0x0000, 150 SCB_ACTIVE = 0x0001, 151 SCB_ABORTED = 0x0002, 152 SCB_DEVICE_RESET = 0x0004, 153 SCB_IMMED = 0x0008, 154 SCB_SENSE = 0x0010, 155 SCB_TIMEDOUT = 0x0020, 156 SCB_QUEUED_FOR_DONE = 0x0040, 157 SCB_PAGED_OUT = 0x0080, 158 SCB_WAITINGQ = 0x0100, 159 SCB_ASSIGNEDQ = 0x0200, 160 SCB_SENTORDEREDTAG = 0x0400, 161 SCB_MSGOUT_SDTR = 0x0800, 162 SCB_MSGOUT_WDTR = 0x1000 163 }scb_flag; 164 165 /* 166 * The driver keeps up to MAX_SCB scb structures per card in memory. Only the 167 * first 28 bytes of the structure need to be transfered to the card during 168 * normal operation. The fields starting at byte 28 are used for kernel level 169 * bookkeeping. 170 */ 171 struct scb { 172 /* ------------ Begin hardware supported fields ---------------- */ 173 /*0*/ u_char control; 174 /*1*/ u_char tcl; /* 4/1/3 bits */ 175 /*2*/ u_char status; 176 /*3*/ u_char SG_segment_count; 177 /*4*/ physaddr SG_list_pointer; 178 /*8*/ u_char residual_SG_segment_count; 179 /*9*/ u_char residual_data_count[3]; 180 /*12*/ physaddr data; 181 /*16*/ u_int32_t datalen; /* Really only three bits, but its 182 * faster to treat it as a long on 183 * a quad boundary. 184 */ 185 /*20*/ physaddr cmdpointer; 186 /*24*/ u_char cmdlen; 187 /*25*/ u_char tag; /* Index into our kernel SCB array. 188 * Also used as the tag for tagged I/O 189 */ 190 #define SCB_PIO_TRANSFER_SIZE 26 /* amount we need to upload/download 191 * via PIO to initialize a transaction. 192 */ 193 /*26*/ u_char next; /* Used for threading SCBs in the 194 * "Waiting for Selection" and 195 * "Disconnected SCB" lists down 196 * in the sequencer. 197 */ 198 /*27*/ u_char prev; 199 /*-----------------end of hardware supported fields----------------*/ 200 STAILQ_ENTRY(scb) links; /* for chaining */ 201 struct scsi_xfer *xs; /* the scsi_xfer for this cmd */ 202 scb_flag flags; 203 u_char position; /* Position in card's scbarray */ 204 struct ahc_dma_seg ahc_dma[AHC_NSEG] __attribute__ ((packed)); 205 struct scsi_sense sense_cmd; /* SCSI command block */ 206 }; 207 208 struct ahc_data { 209 #if defined(__FreeBSD__) 210 int unit; 211 #elif defined(__NetBSD__) 212 struct device sc_dev; 213 void *sc_ih; 214 bus_space_tag_t sc_iot; 215 bus_space_handle_t sc_ioh; 216 LIST_HEAD(, scsi_xfer) sc_xxxq; /* XXX software request queue */ 217 struct scsi_xfer *sc_xxxqlast; /* last entry in queue */ 218 #endif 219 ahc_type type; 220 ahc_flag flags; 221 #if defined(__FreeBSD__) 222 u_long baseport; 223 #endif 224 struct scb *scbarray[AHC_SCB_MAX]; /* Mirror boards scbarray */ 225 struct scb *pagedout_ntscbs[16];/* 226 * Paged out, non-tagged scbs 227 * indexed by target. 228 */ 229 STAILQ_HEAD(, scb) free_scbs; /* 230 * SCBs assigned to free slots 231 * on the card. (no paging required) 232 */ 233 STAILQ_HEAD(, scb) page_scbs; /* 234 * SCBs that will require paging 235 * before use (no assigned slot) 236 */ 237 STAILQ_HEAD(, scb) waiting_scbs;/* 238 * SCBs waiting to be paged in 239 * and started. 240 */ 241 STAILQ_HEAD(, scb)assigned_scbs;/* 242 * SCBs that were waiting but have 243 * now been assigned a slot by 244 * ahc_free_scb. 245 */ 246 struct scsi_link sc_link; 247 struct scsi_link sc_link_b; /* Second bus for Twin channel cards */ 248 u_short needsdtr_orig; /* Targets we initiate sync neg with */ 249 u_short needwdtr_orig; /* Targets we initiate wide neg with */ 250 u_short needsdtr; /* Current list of negotiated targets */ 251 u_short needwdtr; /* Current list of negotiated targets */ 252 u_short sdtrpending; /* Pending SDTR to these targets */ 253 u_short wdtrpending; /* Pending WDTR to these targets */ 254 u_short tagenable; /* Targets that can handle tagqueing */ 255 u_short orderedtag; /* Targets to use ordered tag on */ 256 u_short discenable; /* Targets allowed to disconnect */ 257 u_char our_id; /* our scsi id */ 258 u_char our_id_b; /* B channel scsi id */ 259 u_char numscbs; 260 u_char activescbs; 261 u_char maxhscbs; /* Number of SCBs on the card */ 262 u_char maxscbs; /* 263 * Max SCBs we allocate total including 264 * any that will force us to page SCBs 265 */ 266 u_char qcntmask; 267 u_char unpause; 268 u_char pause; 269 u_char in_timeout; 270 }; 271 272 /* #define AHC_DEBUG */ 273 #ifdef AHC_DEBUG 274 /* Different debugging levels used when AHC_DEBUG is defined */ 275 #define AHC_SHOWMISC 0x0001 276 #define AHC_SHOWCMDS 0x0002 277 #define AHC_SHOWSCBS 0x0004 278 #define AHC_SHOWABORTS 0x0008 279 #define AHC_SHOWSENSE 0x0010 280 #define AHC_SHOWSCBCNT 0x0020 281 282 extern int ahc_debug; /* Initialized in i386/scsi/aic7xxx.c */ 283 #endif 284 285 #if defined(__FreeBSD__) 286 287 char *ahc_name __P((struct ahc_data *ahc)); 288 289 void ahc_reset __P((u_long iobase)); 290 struct ahc_data *ahc_alloc __P((int unit, u_long io_base, ahc_type type, ahc_flag flags)); 291 #elif defined(__NetBSD__) 292 293 #define ahc_name(ahc) (ahc)->sc_dev.dv_xname 294 295 void ahc_reset __P((char *devname, bus_space_tag_t iot, 296 bus_space_handle_t ioh)); 297 void ahc_construct __P((struct ahc_data *ahc, bus_space_tag_t iot, 298 bus_space_handle_t ioh, ahc_type type, ahc_flag flags)); 299 #endif 300 void ahc_free __P((struct ahc_data *)); 301 int ahc_init __P((struct ahc_data *)); 302 int ahc_attach __P((struct ahc_data *)); 303 #if defined(__FreeBSD__) 304 void ahc_intr __P((void *arg)); 305 #elif defined(__NetBSD__) 306 int ahc_intr __P((void *arg)); 307 #endif 308 309 #endif /* _AIC7XXX_H_ */ 310
Indexes created Wed Oct 01 19:09:53 GMT 2025