sys/bus/firewire/firewire.h

   1 /*
   2  * Copyright (c) 2003 Hidetoshi Shimokawa
   3  * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
   4  * 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 acknowledgement as bellow:
  16  *
  17  *    This product includes software developed by K. Kobayashi and H. Shimokawa
  18  *
  19  * 4. The name of the author may not be used to endorse or promote products
  20  *    derived from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  24  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  25  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  26  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  27  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  28  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  30  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * $FreeBSD: src/sys/dev/firewire/firewire.h,v 1.17 2003/11/07 09:01:41 simokawa Exp $
  35  */
  36
  37 #ifndef _FIREWIRE_H
  38 #define _FIREWIRE_H 1
  39
  40 #include <sys/ioccom.h>
  41
  42 #define DEV_DEF  0
  43 #define DEV_DV   2
  44
  45 struct fw_isochreq {
  46         unsigned char   ch:6,
  47                         tag:2;
  48 };
  49
  50 struct fw_isobufreq {
  51         struct fw_bufspec {
  52                 unsigned int nchunk;
  53                 unsigned int npacket;
  54                 unsigned int psize;
  55         } tx, rx;
  56 };
  57
  58 struct fw_addr {
  59         unsigned long hi;
  60         unsigned long lo;
  61 };
  62
  63 struct fw_asybindreq {
  64         struct fw_addr start;
  65         unsigned long len;
  66 };
  67
  68 struct fw_reg_req_t {
  69         unsigned long addr;
  70         unsigned long data;
  71 };
  72
  73 #define MAXREC(x)       (2 << (x))
  74 #define FWPMAX_S400 (2048 + 20) /* MAXREC plus space for control data */
  75 #define FWMAXQUEUE 128
  76
  77 #define FWLOCALBUS      0xffc0
  78
  79 #define FWTCODE_WREQQ   0
  80 #define FWTCODE_WREQB   1
  81 #define FWTCODE_WRES    2
  82 #define FWTCODE_RREQQ   4
  83 #define FWTCODE_RREQB   5
  84 #define FWTCODE_RRESQ   6
  85 #define FWTCODE_RRESB   7
  86 #define FWTCODE_CYCS    8
  87 #define FWTCODE_LREQ    9
  88 #define FWTCODE_STREAM  0xa
  89 #define FWTCODE_LRES    0xb
  90 #define FWTCODE_PHY     0xe
  91
  92 #define FWRETRY_1       0
  93 #define FWRETRY_X       1
  94 #define FWRETRY_A       2
  95 #define FWRETRY_B       3
  96
  97 #define FWRCODE_COMPLETE        0
  98 #define FWRCODE_ER_CONFL        4
  99 #define FWRCODE_ER_DATA         5
 100 #define FWRCODE_ER_TYPE         6
 101 #define FWRCODE_ER_ADDR         7
 102
 103 #define FWSPD_S100      0
 104 #define FWSPD_S200      1
 105 #define FWSPD_S400      2
 106
 107 #define FWP_TL_VALID (1 << 7)
 108
 109 struct fw_isohdr {
 110         u_int32_t hdr[1];
 111 };
 112
 113 struct fw_asyhdr {
 114         u_int32_t hdr[4];
 115 };
 116
 117 #if BYTE_ORDER == BIG_ENDIAN
 118 #define BIT4x2(x,y)      u_int8_t  x:4, y:4
 119 #define BIT16x2(x,y)    u_int32_t x:16, y:16
 120 #else
 121 #define BIT4x2(x,y)      u_int8_t  y:4, x:4
 122 #define BIT16x2(x,y)    u_int32_t y:16, x:16
 123 #endif
 124
 125
 126 #if BYTE_ORDER == BIG_ENDIAN
 127 #define COMMON_HDR(a,b,c,d)     u_int32_t a:16,b:8,c:4,d:4
 128 #define COMMON_RES(a,b,c,d)     u_int32_t a:16,b:4,c:4,d:8
 129 #else
 130 #define COMMON_HDR(a,b,c,d)     u_int32_t d:4,c:4,b:8,a:16
 131 #define COMMON_RES(a,b,c,d)     u_int32_t d:8,c:4,b:4,a:16
 132 #endif
 133
 134 struct fw_pkt {
 135         union {
 136                 u_int32_t ld[0];
 137                 struct {
 138                         COMMON_HDR(, , tcode, );
 139                 } common;
 140                 struct {
 141                         COMMON_HDR(len, chtag, tcode, sy);
 142                         u_int32_t payload[0];
 143                 } stream;
 144                 struct {
 145                         COMMON_HDR(dst, tlrt, tcode, pri);
 146                         BIT16x2(src, );
 147                 } hdr;
 148                 struct {
 149                         COMMON_HDR(dst, tlrt, tcode, pri);
 150                         BIT16x2(src, dest_hi);
 151                         u_int32_t dest_lo;
 152                 } rreqq;
 153                 struct {
 154                         COMMON_HDR(dst, tlrt, tcode, pri);
 155                         COMMON_RES(src, rtcode, , );
 156                         u_int32_t :32;
 157                 } wres;
 158                 struct {
 159                         COMMON_HDR(dst, tlrt, tcode, pri);
 160                         BIT16x2(src, dest_hi);
 161                         u_int32_t dest_lo;
 162                         BIT16x2(len, extcode);
 163                 } rreqb;
 164                 struct {
 165                         COMMON_HDR(dst, tlrt, tcode, pri);
 166                         BIT16x2(src, dest_hi);
 167                         u_int32_t dest_lo;
 168                         u_int32_t data;
 169                 } wreqq;
 170                 struct {
 171                         COMMON_HDR(dst, tlrt, tcode, pri);
 172                         BIT16x2(src, dest_hi);
 173                         u_int32_t dest_lo;
 174                         u_int32_t data;
 175                 } cyc;
 176                 struct {
 177                         COMMON_HDR(dst, tlrt, tcode, pri);
 178                         COMMON_RES(src, rtcode, , );
 179                         u_int32_t :32;
 180                         u_int32_t data;
 181                 } rresq;
 182                 struct {
 183                         COMMON_HDR(dst, tlrt, tcode, pri);
 184                         BIT16x2(src, dest_hi);
 185                         u_int32_t dest_lo;
 186                         BIT16x2(len, extcode);
 187                         u_int32_t payload[0];
 188                 } wreqb;
 189                 struct {
 190                         COMMON_HDR(dst, tlrt, tcode, pri);
 191                         BIT16x2(src, dest_hi);
 192                         u_int32_t dest_lo;
 193                         BIT16x2(len, extcode);
 194                         u_int32_t payload[0];
 195                 } lreq;
 196                 struct {
 197                         COMMON_HDR(dst, tlrt, tcode, pri);
 198                         COMMON_RES(src, rtcode, , );
 199                         u_int32_t :32;
 200                         BIT16x2(len, extcode);
 201                         u_int32_t payload[0];
 202                 } rresb;
 203                 struct {
 204                         COMMON_HDR(dst, tlrt, tcode, pri);
 205                         COMMON_RES(src, rtcode, , );
 206                         u_int32_t :32;
 207                         BIT16x2(len, extcode);
 208                         u_int32_t payload[0];
 209                 } lres;
 210         } mode;
 211 };
 212
 213 /*
 214  * Response code (rtcode)
 215  */
 216 /* The node has successfully completed the command. */
 217 #define RESP_CMP                0
 218 /* A resource conflict was detected. The request may be retried. */
 219 #define RESP_CONFLICT_ERROR     4
 220 /* Hardware error, data is unavailable. */
 221 #define RESP_DATA_ERROR         5
 222 /* A field in the request packet header was set to an unsupported or incorrect
 223  * value, or an invalid transaction was attempted (e.g., a write to a read-only
 224  * address). */
 225 #define RESP_TYPE_ERROR         6
 226 /* The destination offset field in the request was set to an address not
 227  * accessible in the destination node. */
 228 #define RESP_ADDRESS_ERROR      7
 229
 230 /*
 231  * Extended transaction code (extcode)
 232  */
 233 #define EXTCODE_MASK_SWAP       1
 234 #define EXTCODE_CMP_SWAP        2
 235 #define EXTCODE_FETCH_ADD       3
 236 #define EXTCODE_LITTLE_ADD      4
 237 #define EXTCODE_BOUNDED_ADD     5
 238 #define EXTCODE_WRAP_ADD        6
 239
 240 struct fw_eui64 {
 241         u_int32_t hi, lo;
 242 };
 243 #define FW_EUI64_BYTE(eui, x) \
 244         ((((x)<4)?                              \
 245                 ((eui)->hi >> (8*(3-(x)))):     \
 246                 ((eui)->lo >> (8*(7-(x))))      \
 247         ) & 0xff)
 248 #define FW_EUI64_EQUAL(x, y) \
 249         ((x).hi == (y).hi && (x).lo == (y).lo)
 250
 251 struct fw_asyreq {
 252         struct fw_asyreq_t{
 253                 unsigned char sped;
 254                 unsigned int type;
 255 #define FWASREQNODE     0
 256 #define FWASREQEUI      1
 257 #define FWASRESTL       2
 258 #define FWASREQSTREAM   3
 259                 unsigned short len;
 260                 union {
 261                         struct fw_eui64 eui;
 262                 }dst;
 263         }req;
 264         struct fw_pkt pkt;
 265         u_int32_t data[512];
 266 };
 267
 268 struct fw_devinfo {
 269         struct fw_eui64 eui;
 270         u_int16_t dst;
 271         u_int16_t status;
 272 };
 273
 274 #define FW_MAX_DEVLST 70
 275 struct fw_devlstreq {
 276         u_int16_t n;
 277         u_int16_t info_len;
 278         struct fw_devinfo dev[FW_MAX_DEVLST];
 279 };
 280
 281 #define FW_SELF_ID_PORT_CONNECTED_TO_CHILD 3
 282 #define FW_SELF_ID_PORT_CONNECTED_TO_PARENT 2
 283 #define FW_SELF_ID_PORT_NOT_CONNECTED 1
 284 #define FW_SELF_ID_PORT_NOT_EXISTS 0
 285 #if BYTE_ORDER == BIG_ENDIAN
 286 union fw_self_id {
 287         struct {
 288                 u_int32_t id:2,
 289                           phy_id:6,
 290                           sequel:1,
 291                           link_active:1,
 292                           gap_count:6,
 293                           phy_speed:2,
 294                           phy_delay:2,
 295                           contender:1,
 296                           power_class:3,
 297                           port0:2,
 298                           port1:2,
 299                           port2:2,
 300                           initiated_reset:1,
 301                           more_packets:1;
 302         } p0;
 303         struct {
 304                 u_int32_t
 305                           id:2,
 306                           phy_id:6,
 307                           sequel:1,
 308                           sequence_num:3,
 309                           :2,
 310                           porta:2,
 311                           portb:2,
 312                           portc:2,
 313                           portd:2,
 314                           porte:2,
 315                           portf:2,
 316                           portg:2,
 317                           porth:2,
 318                           :1,
 319                           more_packets:1;
 320         } p1;
 321 };
 322 #else
 323 union fw_self_id {
 324         struct {
 325                 u_int32_t more_packets:1,
 326                           initiated_reset:1,
 327                           port2:2,
 328                           port1:2,
 329                           port0:2,
 330                           power_class:3,
 331                           contender:1,
 332                           phy_delay:2,
 333                           phy_speed:2,
 334                           gap_count:6,
 335                           link_active:1,
 336                           sequel:1,
 337                           phy_id:6,
 338                           id:2;
 339         } p0;
 340         struct {
 341                 u_int32_t more_packets:1,
 342                           reserved1:1,
 343                           porth:2,
 344                           portg:2,
 345                           portf:2,
 346                           porte:2,
 347                           portd:2,
 348                           portc:2,
 349                           portb:2,
 350                           porta:2,
 351                           reserved2:2,
 352                           sequence_num:3,
 353                           sequel:1,
 354                           phy_id:6,
 355                           id:2;
 356         } p1;
 357 };
 358 #endif
 359
 360
 361 struct fw_topology_map {
 362         u_int32_t crc:16,
 363                   crc_len:16;
 364         u_int32_t generation;
 365         u_int32_t self_id_count:16,
 366                   node_count:16;
 367         union fw_self_id self_id[4*64];
 368 };
 369
 370 struct fw_speed_map {
 371         u_int32_t crc:16,
 372                   crc_len:16;
 373         u_int32_t generation;
 374         u_int8_t  speed[64][64];
 375 };
 376
 377 struct fw_crom_buf {
 378         struct fw_eui64 eui;
 379         int len;
 380         void *ptr;
 381 };
 382
 383 /*
 384  * FireWire specific system requests.
 385  */
 386 #define FW_SSTBUF       _IOWR('S', 86, struct fw_isobufreq)
 387 #define FW_GSTBUF       _IOWR('S', 87, struct fw_isobufreq)
 388 #define FW_SRSTREAM     _IOWR('S', 88, struct fw_isochreq)
 389 #define FW_GRSTREAM     _IOWR('S', 89, struct fw_isochreq)
 390 #define FW_STSTREAM     _IOWR('S', 90, struct fw_isochreq)
 391 #define FW_GTSTREAM     _IOWR('S', 91, struct fw_isochreq)
 392
 393 #define FW_ASYREQ       _IOWR('S', 92, struct fw_asyreq)
 394 #define FW_IBUSRST      _IOR('S', 1, unsigned int)
 395 #define FW_GDEVLST      _IOWR('S', 2, struct fw_devlstreq)
 396 #define FW_SBINDADDR    _IOWR('S', 3, struct fw_asybindreq)
 397 #define FW_CBINDADDR    _IOWR('S', 4, struct fw_asybindreq)
 398 #define FW_GTPMAP       _IOR('S', 5, struct fw_topology_map)
 399 #define FW_GCROM        _IOWR('S', 7, struct fw_crom_buf)
 400
 401 #define FW_SDEUI64      _IOW('S', 20, struct fw_eui64)
 402 #define FW_GDEUI64      _IOR('S', 21, struct fw_eui64)
 403
 404 #define FWOHCI_RDREG    _IOWR('S', 80, struct fw_reg_req_t)
 405 #define FWOHCI_WRREG    _IOWR('S', 81, struct fw_reg_req_t)
 406 #define FWOHCI_RDPHYREG _IOWR('S', 82, struct fw_reg_req_t)
 407 #define FWOHCI_WRPHYREG _IOWR('S', 83, struct fw_reg_req_t)
 408
 409 #define DUMPDMA         _IOWR('S', 82, u_int32_t)
 410
 411 #ifdef _KERNEL
 412
 413 #define FWMAXNDMA 0x100 /* 8 bits DMA channel id. in device No. */
 414
 415 #define unit2minor(x)   (((x) & 0xff) | (((x) << 8) & ~0xffff))
 416
 417 #define MAKEMINOR(f, u, s)      \
 418         unit2minor((f) | (((u) & 0xff) << 8) | (s & 0xff))
 419 #define DEV2UNIT(x)     ((dev2unit(x) & 0xff00) >> 8)
 420 #define DEV2SUB(x)      (dev2unit(x) & 0xff)
 421
 422 #define FW_UNITMASK     MAKEMINOR(0, -1, 0)
 423 #define FW_UNIT(unit)   MAKEMINOR(0, unit, 0)
 424
 425 #define FWMEM_FLAG      0x10000
 426 #define DEV_FWMEM(x)    (dev2unit(x) & FWMEM_FLAG)
 427 #endif
 428 #endif