aic7xxxvar.h revision 1.17
1 /* $NetBSD: aic7xxxvar.h,v 1.17 1998/06/22 20:02:54 sommerfe 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 #include "opt_ahc.h" /* For AHC_DEBUG, AHC_TAGENABLE, AHC_BROKEN_CACHE */ 48 49 /* 50 * convert FreeBSD's <sys/queue.h> symbols to NetBSD's 51 */ 52 #define STAILQ_ENTRY SIMPLEQ_ENTRY 53 #define STAILQ_HEAD SIMPLEQ_HEAD 54 #define STAILQ_INIT SIMPLEQ_INIT 55 #define STAILQ_INSERT_HEAD SIMPLEQ_INSERT_HEAD 56 #define STAILQ_INSERT_TAIL SIMPLEQ_INSERT_TAIL 57 #define STAILQ_REMOVE_HEAD(head, field) \ 58 SIMPLEQ_REMOVE_HEAD(head, (head)->sqh_first, field) 59 #define stqh_first sqh_first 60 #define stqe_next sqe_next 61 #endif 62 63 #if defined(__FreeBSD__) 64 #define AHC_INB(ahc, port) \ 65 inb((ahc)->baseport+(port)) 66 #define AHC_INSB(ahc, port, valp, size) \ 67 insb((ahc)->baseport+(port), valp, size) 68 #define AHC_OUTB(ahc, port, val) \ 69 outb((ahc)->baseport+(port), val) 70 #define AHC_OUTSB(ahc, port, valp, size) \ 71 outsb((ahc)->baseport+(port), valp, size) 72 #define AHC_OUTSL(ahc, port, valp, size) \ 73 outsl((ahc)->baseport+(port), valp, size) 74 #elif defined(__NetBSD__) 75 76 #ifndef __BUS_SPACE_HAS_STREAM_METHODS 77 #define bus_space_write_multi_stream_4 bus_space_write_multi_4 78 #endif 79 80 #define AHC_INB(ahc, port) \ 81 bus_space_read_1((ahc)->sc_st, (ahc)->sc_sh, port) 82 #define AHC_INSB(ahc, port, valp, size) \ 83 bus_space_read_multi_1((ahc)->sc_st, (ahc)->sc_sh, port, (u_int8_t *) valp, size) 84 #define AHC_OUTB(ahc, port, val) \ 85 bus_space_write_1((ahc)->sc_st, (ahc)->sc_sh, port, val) 86 #define AHC_OUTSB(ahc, port, valp, size) \ 87 bus_space_write_multi_1((ahc)->sc_st, (ahc)->sc_sh, port, (u_int8_t *) valp, size) 88 #define AHC_OUTSL(ahc, port, valp, size) \ 89 bus_space_write_multi_stream_4((ahc)->sc_st, (ahc)->sc_sh, port, (u_int32_t *) valp, size) 90 #endif 91 92 #define AHC_NSEG 256 /* number of dma segments supported */ 93 94 #define AHC_SCB_MAX 255 /* 95 * Up to 255 SCBs on some types of aic7xxx 96 * based boards. The aic7870 have 16 internal 97 * SCBs, but external SRAM bumps this to 255. 98 * The aic7770 family have only 4, and the 99 * aic7850 has only 3. 100 */ 101 102 103 typedef u_int32_t physaddr; 104 #if defined(__FreeBSD__) 105 extern u_long ahc_unit; 106 #endif 107 108 struct ahc_dma_seg { 109 physaddr addr; 110 u_int32_t len; 111 }; 112 113 typedef enum { 114 AHC_NONE = 0x000, 115 AHC_ULTRA = 0x001, /* Supports 20MHz Transfers */ 116 AHC_WIDE = 0x002, /* Wide Channel */ 117 AHC_TWIN = 0x008, /* Twin Channel */ 118 AHC_AIC7770 = 0x010, 119 AHC_AIC7850 = 0x020, 120 AHC_AIC7860 = 0x021, /* ULTRA version of the aic7850 */ 121 AHC_AIC7870 = 0x040, 122 AHC_AIC7880 = 0x041, 123 AHC_AIC78X0 = 0x060, /* PCI Based Controller */ 124 AHC_274 = 0x110, /* EISA Based Controller */ 125 AHC_284 = 0x210, /* VL/ISA Based Controller */ 126 AHC_294AU = 0x421, /* aic7860 based '2940' */ 127 AHC_294 = 0x440, /* PCI Based Controller */ 128 AHC_294U = 0x441, /* ULTRA PCI Based Controller */ 129 AHC_394 = 0x840, /* Twin Channel PCI Controller */ 130 AHC_394U = 0x841, /* Twin, ULTRA Channel PCI Controller */ 131 }ahc_type; 132 133 typedef enum { 134 AHC_FNONE = 0x00, 135 AHC_INIT = 0x01, 136 AHC_RUNNING = 0x02, 137 AHC_PAGESCBS = 0x04, /* Enable SCB paging */ 138 AHC_CHANNEL_B_PRIMARY = 0x08, /* 139 * On twin channel adapters, probe 140 * channel B first since it is the 141 * primary bus. 142 */ 143 AHC_USEDEFAULTS = 0x10, /* 144 * For cards without an seeprom 145 * or a BIOS to initialize the chip's 146 * SRAM, we use the default target 147 * settings. 148 */ 149 AHC_CHNLB = 0x20, /* 150 * Second controller on 3940 151 * Also encodes the offset in the 152 * SEEPROM for CHNLB info (32) 153 */ 154 }ahc_flag; 155 156 typedef enum { 157 SCB_FREE = 0x0000, 158 SCB_ACTIVE = 0x0001, 159 SCB_ABORTED = 0x0002, 160 SCB_DEVICE_RESET = 0x0004, 161 SCB_IMMED = 0x0008, 162 SCB_SENSE = 0x0010, 163 SCB_TIMEDOUT = 0x0020, 164 SCB_QUEUED_FOR_DONE = 0x0040, 165 SCB_PAGED_OUT = 0x0080, 166 SCB_WAITINGQ = 0x0100, 167 SCB_ASSIGNEDQ = 0x0200, 168 SCB_SENTORDEREDTAG = 0x0400, 169 SCB_MSGOUT_SDTR = 0x0800, 170 SCB_MSGOUT_WDTR = 0x1000 171 }scb_flag; 172 173 /* 174 * The driver keeps up to MAX_SCB scb structures per card in memory. Only the 175 * first 28 bytes of the structure need to be transfered to the card during 176 * normal operation. The fields starting at byte 28 are used for kernel level 177 * bookkeeping. 178 */ 179 struct scb { 180 /* ------------ Begin hardware supported fields ---------------- */ 181 /*0*/ u_char control; 182 /*1*/ u_char tcl; /* 4/1/3 bits */ 183 /*2*/ u_char status; 184 /*3*/ u_char SG_segment_count; 185 /*4*/ physaddr SG_list_pointer; 186 /*8*/ u_char residual_SG_segment_count; 187 /*9*/ u_char residual_data_count[3]; 188 /*12*/ physaddr data; 189 /*16*/ u_int32_t datalen; /* Really only three bits, but its 190 * faster to treat it as a long on 191 * a quad boundary. 192 */ 193 /*20*/ physaddr cmdpointer; 194 /*24*/ u_char cmdlen; 195 /*25*/ u_char tag; /* Index into our kernel SCB array. 196 * Also used as the tag for tagged I/O 197 */ 198 #define SCB_PIO_TRANSFER_SIZE 26 /* amount we need to upload/download 199 * via PIO to initialize a transaction. 200 */ 201 /*26*/ u_char next; /* Used for threading SCBs in the 202 * "Waiting for Selection" and 203 * "Disconnected SCB" lists down 204 * in the sequencer. 205 */ 206 /*27*/ u_char prev; 207 /*-----------------end of hardware supported fields----------------*/ 208 STAILQ_ENTRY(scb) links; /* for chaining */ 209 struct scsipi_xfer *xs; /* the scsipi_xfer for this cmd */ 210 scb_flag flags; 211 u_char position; /* Position in card's scbarray */ 212 struct ahc_dma_seg ahc_dma[AHC_NSEG]; 213 struct scsipi_sense sense_cmd; /* SCSI command block */ 214 215 #if defined(__NetBSD__) 216 /* 217 * This DMA map maps the buffer involved in the transfer. 218 * Its contents are loaded into "ahc_dma" above. 219 */ 220 bus_dmamap_t dmamap_xfer; 221 222 struct scsi_generic scsi_cmd; /* dma-able copy of xs->cmd */ 223 struct scsipi_sense_data scsi_sense; 224 #endif 225 }; 226 227 struct ahc_data { 228 #if defined(__FreeBSD__) 229 int unit; 230 #elif defined(__NetBSD__) 231 struct device sc_dev; 232 void *sc_ih; 233 bus_space_tag_t sc_st; 234 bus_space_handle_t sc_sh; 235 bus_dma_tag_t sc_dt; 236 int sc_dmaflags; 237 238 bus_dmamap_t sc_dmamap_control; /* Maps the control blocks */ 239 LIST_HEAD(, scsipi_xfer) sc_xxxq; /* XXX software request queue */ 240 struct scsipi_xfer *sc_xxxqlast; /* last entry in queue */ 241 #endif 242 ahc_type type; 243 ahc_flag flags; 244 #if defined(__FreeBSD__) 245 u_long baseport; 246 #endif 247 struct scb *scbarray[AHC_SCB_MAX]; /* Mirror boards scbarray */ 248 struct scb *pagedout_ntscbs[16];/* 249 * Paged out, non-tagged scbs 250 * indexed by target. 251 */ 252 STAILQ_HEAD(, scb) free_scbs; /* 253 * SCBs assigned to free slots 254 * on the card. (no paging required) 255 */ 256 STAILQ_HEAD(, scb) page_scbs; /* 257 * SCBs that will require paging 258 * before use (no assigned slot) 259 */ 260 STAILQ_HEAD(, scb) waiting_scbs;/* 261 * SCBs waiting to be paged in 262 * and started. 263 */ 264 STAILQ_HEAD(, scb)assigned_scbs;/* 265 * SCBs that were waiting but have 266 * now been assigned a slot by 267 * ahc_free_scb. 268 */ 269 #ifdef __NetBSD__ 270 struct scsipi_link sc_link; 271 struct scsipi_link sc_link_b; /* Second bus for Twin channel cards */ 272 #else 273 struct scsi_link sc_link; 274 struct scsi_link sc_link_b; /* Second bus for Twin channel cards */ 275 #endif 276 u_short needsdtr_orig; /* Targets we initiate sync neg with */ 277 u_short needwdtr_orig; /* Targets we initiate wide neg with */ 278 u_short needsdtr; /* Current list of negotiated targets */ 279 u_short needwdtr; /* Current list of negotiated targets */ 280 u_short sdtrpending; /* Pending SDTR to these targets */ 281 u_short wdtrpending; /* Pending WDTR to these targets */ 282 u_short tagenable; /* Targets that can handle tagqueing */ 283 u_short orderedtag; /* Targets to use ordered tag on */ 284 u_short discenable; /* Targets allowed to disconnect */ 285 u_char our_id; /* our scsi id */ 286 u_char our_id_b; /* B channel scsi id */ 287 u_char numscbs; 288 u_char activescbs; 289 u_char maxhscbs; /* Number of SCBs on the card */ 290 u_char maxscbs; /* 291 * Max SCBs we allocate total including 292 * any that will force us to page SCBs 293 */ 294 u_char qcntmask; 295 u_char unpause; 296 u_char pause; 297 u_char in_timeout; 298 }; 299 300 /* #define AHC_DEBUG */ 301 #ifdef AHC_DEBUG 302 /* Different debugging levels used when AHC_DEBUG is defined */ 303 #define AHC_SHOWMISC 0x0001 304 #define AHC_SHOWCMDS 0x0002 305 #define AHC_SHOWSCBS 0x0004 306 #define AHC_SHOWABORTS 0x0008 307 #define AHC_SHOWSENSE 0x0010 308 #define AHC_SHOWSCBCNT 0x0020 309 310 extern int ahc_debug; /* Initialized in i386/scsi/aic7xxx.c */ 311 #endif 312 313 #if defined(__FreeBSD__) 314 315 char *ahc_name __P((struct ahc_data *ahc)); 316 317 void ahc_reset __P((u_long iobase)); 318 struct ahc_data *ahc_alloc __P((int unit, u_long io_base, ahc_type type, ahc_flag flags)); 319 #elif defined(__NetBSD__) 320 321 #define ahc_name(ahc) (ahc)->sc_dev.dv_xname 322 323 void ahc_reset __P((char *devname, bus_space_tag_t st, 324 bus_space_handle_t sh)); 325 void ahc_construct __P((struct ahc_data *ahc, bus_space_tag_t st, 326 bus_space_handle_t sh, bus_dma_tag_t dt, ahc_type type, 327 ahc_flag flags)); 328 #endif 329 void ahc_free __P((struct ahc_data *)); 330 int ahc_init __P((struct ahc_data *)); 331 int ahc_attach __P((struct ahc_data *)); 332 #if defined(__FreeBSD__) 333 void ahc_intr __P((void *arg)); 334 #elif defined(__NetBSD__) 335 int ahc_intr __P((void *arg)); 336 #endif 337 338 #endif /* _AIC7XXX_H_ */ 339
Indexes created Wed Oct 01 15:09:59 GMT 2025