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   1 /*******************************************************************
   2  * ident "$Id: idt77252.h,v 1.2 2001/11/11 08:13:54 ecd Exp $"
   3  *
   4  * $Author: ecd $
   5  * $Date: 2001/11/11 08:13:54 $
   6  *
   7  * Copyright (c) 2000 ATecoM GmbH
   8  *
   9  * The author may be reached at ecd@atecom.com.
  10  *
  11  * This program is free software; you can redistribute  it and/or modify it
  12  * under  the terms of  the GNU General  Public License as published by the
  13  * Free Software Foundation;  either version 2 of the  License, or (at your
  14  * option) any later version.
  15  *
  16  * THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR   IMPLIED
  17  * WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  19  * NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT,  INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  22  * USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  23  * ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  * You should have received a copy of the  GNU General Public License along
  28  * with this program; if not, write  to the Free Software Foundation, Inc.,
  29  * 675 Mass Ave, Cambridge, MA 02139, USA.
  30  *
  31  *******************************************************************/
  32
  33 #ifndef _IDT77252_H
  34 #define _IDT77252_H 1
  35
  36
  37 #include <linux/ptrace.h>
  38 #include <linux/skbuff.h>
  39 #include <linux/workqueue.h>
  40
  41
  42 /*****************************************************************************/
  43 /*                                                                           */
  44 /* Makros                                                                    */
  45 /*                                                                           */
  46 /*****************************************************************************/
  47 #define VPCI2VC(card, vpi, vci) \
  48         (((vpi) << card->vcibits) | ((vci) & card->vcimask))
  49
  50 /*****************************************************************************/
  51 /*                                                                           */
  52 /*   DEBUGGING definitions                                                   */
  53 /*                                                                           */
  54 /*****************************************************************************/
  55
  56 #define DBG_RAW_CELL    0x00000400
  57 #define DBG_TINY        0x00000200
  58 #define DBG_GENERAL     0x00000100
  59 #define DBG_XGENERAL    0x00000080
  60 #define DBG_INIT        0x00000040
  61 #define DBG_DEINIT      0x00000020
  62 #define DBG_INTERRUPT   0x00000010
  63 #define DBG_OPEN_CONN   0x00000008
  64 #define DBG_CLOSE_CONN  0x00000004
  65 #define DBG_RX_DATA     0x00000002
  66 #define DBG_TX_DATA     0x00000001
  67
  68 #ifdef CONFIG_ATM_IDT77252_DEBUG
  69
  70 #define CPRINTK(args...)   do { if (debug & DBG_CLOSE_CONN) printk(args); } while(0)
  71 #define OPRINTK(args...)   do { if (debug & DBG_OPEN_CONN)  printk(args); } while(0)
  72 #define IPRINTK(args...)   do { if (debug & DBG_INIT)       printk(args); } while(0)
  73 #define INTPRINTK(args...) do { if (debug & DBG_INTERRUPT)  printk(args); } while(0)
  74 #define DIPRINTK(args...)  do { if (debug & DBG_DEINIT)     printk(args); } while(0)
  75 #define TXPRINTK(args...)  do { if (debug & DBG_TX_DATA)    printk(args); } while(0)
  76 #define RXPRINTK(args...)  do { if (debug & DBG_RX_DATA)    printk(args); } while(0)
  77 #define XPRINTK(args...)   do { if (debug & DBG_XGENERAL)   printk(args); } while(0)
  78 #define DPRINTK(args...)   do { if (debug & DBG_GENERAL)    printk(args); } while(0)
  79 #define NPRINTK(args...)   do { if (debug & DBG_TINY)       printk(args); } while(0)
  80 #define RPRINTK(args...)   do { if (debug & DBG_RAW_CELL)   printk(args); } while(0)
  81
  82 #else
  83
  84 #define CPRINTK(args...)        do { } while(0)
  85 #define OPRINTK(args...)        do { } while(0)
  86 #define IPRINTK(args...)        do { } while(0)
  87 #define INTPRINTK(args...)      do { } while(0)
  88 #define DIPRINTK(args...)       do { } while(0)
  89 #define TXPRINTK(args...)       do { } while(0)
  90 #define RXPRINTK(args...)       do { } while(0)
  91 #define XPRINTK(args...)        do { } while(0)
  92 #define DPRINTK(args...)        do { } while(0)
  93 #define NPRINTK(args...)        do { } while(0)
  94 #define RPRINTK(args...)        do { } while(0)
  95
  96 #endif
  97
  98 #define SCHED_UBR0              0
  99 #define SCHED_UBR               1
 100 #define SCHED_VBR               2
 101 #define SCHED_ABR               3
 102 #define SCHED_CBR               4
 103
 104 #define SCQFULL_TIMEOUT         HZ
 105
 106 /*****************************************************************************/
 107 /*                                                                           */
 108 /*   Free Buffer Queue Layout                                                */
 109 /*                                                                           */
 110 /*****************************************************************************/
 111 #define SAR_FB_SIZE_0           (2048 - 256)
 112 #define SAR_FB_SIZE_1           (4096 - 256)
 113 #define SAR_FB_SIZE_2           (8192 - 256)
 114 #define SAR_FB_SIZE_3           (16384 - 256)
 115
 116 #define SAR_FBQ0_LOW            4
 117 #define SAR_FBQ0_HIGH           8
 118 #define SAR_FBQ1_LOW            2
 119 #define SAR_FBQ1_HIGH           4
 120 #define SAR_FBQ2_LOW            1
 121 #define SAR_FBQ2_HIGH           2
 122 #define SAR_FBQ3_LOW            1
 123 #define SAR_FBQ3_HIGH           2
 124
 125 #if 0
 126 #define SAR_TST_RESERVED        44      /* Num TST reserved for UBR/ABR/VBR */
 127 #else
 128 #define SAR_TST_RESERVED        0       /* Num TST reserved for UBR/ABR/VBR */
 129 #endif
 130
 131 #define TCT_CBR                 0x00000000
 132 #define TCT_UBR                 0x00000000
 133 #define TCT_VBR                 0x40000000
 134 #define TCT_ABR                 0x80000000
 135 #define TCT_TYPE                0xc0000000
 136
 137 #define TCT_RR                  0x20000000
 138 #define TCT_LMCR                0x08000000
 139 #define TCT_SCD_MASK            0x0007ffff
 140
 141 #define TCT_TSIF                0x00004000
 142 #define TCT_HALT                0x80000000
 143 #define TCT_IDLE                0x40000000
 144 #define TCT_FLAG_UBR            0x80000000
 145
 146 /*****************************************************************************/
 147 /*                                                                           */
 148 /*   Structure describing an IDT77252                                        */
 149 /*                                                                           */
 150 /*****************************************************************************/
 151
 152 struct scqe
 153 {
 154         u32             word_1;
 155         u32             word_2;
 156         u32             word_3;
 157         u32             word_4;
 158 };
 159
 160 #define SCQ_ENTRIES     64
 161 #define SCQ_SIZE        (SCQ_ENTRIES * sizeof(struct scqe))
 162 #define SCQ_MASK        (SCQ_SIZE - 1)
 163
 164 struct scq_info
 165 {
 166         struct scqe             *base;
 167         struct scqe             *next;
 168         struct scqe             *last;
 169         dma_addr_t              paddr;
 170         spinlock_t              lock;
 171         atomic_t                used;
 172         unsigned long           trans_start;
 173         unsigned long           scd;
 174         spinlock_t              skblock;
 175         struct sk_buff_head     transmit;
 176         struct sk_buff_head     pending;
 177 };
 178
 179 struct rx_pool {
 180         struct sk_buff          *first;
 181         struct sk_buff          **last;
 182         unsigned int            len;
 183         unsigned int            count;
 184 };
 185
 186 struct aal1 {
 187         unsigned int            total;
 188         unsigned int            count;
 189         struct sk_buff          *data;
 190         unsigned char           sequence;
 191 };
 192
 193 struct rate_estimator {
 194         struct timer_list       timer;
 195         unsigned int            interval;
 196         unsigned int            ewma_log;
 197         u64                     cells;
 198         u64                     last_cells;
 199         long                    avcps;
 200         u32                     cps;
 201         u32                     maxcps;
 202 };
 203
 204 struct vc_map {
 205         unsigned int            index;
 206         unsigned long           flags;
 207 #define VCF_TX          0
 208 #define VCF_RX          1
 209 #define VCF_IDLE        2
 210 #define VCF_RSV         3
 211         unsigned int            class;
 212         u8                      init_er;
 213         u8                      lacr;
 214         u8                      max_er;
 215         unsigned int            ntste;
 216         spinlock_t              lock;
 217         struct atm_vcc          *tx_vcc;
 218         struct atm_vcc          *rx_vcc;
 219         struct idt77252_dev     *card;
 220         struct scq_info         *scq;           /* To keep track of the SCQ */
 221         struct rate_estimator   *estimator;
 222         int                     scd_index;
 223         union {
 224                 struct rx_pool  rx_pool;
 225                 struct aal1     aal1;
 226         } rcv;
 227 };
 228
 229 /*****************************************************************************/
 230 /*                                                                           */
 231 /*   RCTE - Receive Connection Table Entry                                   */
 232 /*                                                                           */
 233 /*****************************************************************************/
 234
 235 struct rct_entry
 236 {
 237         u32             word_1;
 238         u32             buffer_handle;
 239         u32             dma_address;
 240         u32             aal5_crc32;
 241 };
 242
 243 /*****************************************************************************/
 244 /*                                                                           */
 245 /*   RSQ - Receive Status Queue                                              */
 246 /*                                                                           */
 247 /*****************************************************************************/
 248
 249 #define SAR_RSQE_VALID      0x80000000
 250 #define SAR_RSQE_IDLE       0x40000000
 251 #define SAR_RSQE_BUF_MASK   0x00030000
 252 #define SAR_RSQE_BUF_ASGN   0x00008000
 253 #define SAR_RSQE_NZGFC      0x00004000
 254 #define SAR_RSQE_EPDU       0x00002000
 255 #define SAR_RSQE_BUF_CONT   0x00001000
 256 #define SAR_RSQE_EFCIE      0x00000800
 257 #define SAR_RSQE_CLP        0x00000400
 258 #define SAR_RSQE_CRC        0x00000200
 259 #define SAR_RSQE_CELLCNT    0x000001FF
 260
 261
 262 #define RSQSIZE            8192
 263 #define RSQ_NUM_ENTRIES    (RSQSIZE / 16)
 264 #define RSQ_ALIGNMENT      8192
 265
 266 struct rsq_entry {
 267         u32                     word_1;
 268         u32                     word_2;
 269         u32                     word_3;
 270         u32                     word_4;
 271 };
 272
 273 struct rsq_info {
 274         struct rsq_entry        *base;
 275         struct rsq_entry        *next;
 276         struct rsq_entry        *last;
 277         dma_addr_t              paddr;
 278 };
 279
 280
 281 /*****************************************************************************/
 282 /*                                                                           */
 283 /*   TSQ - Transmit Status Queue                                             */
 284 /*                                                                           */
 285 /*****************************************************************************/
 286
 287 #define SAR_TSQE_INVALID         0x80000000
 288 #define SAR_TSQE_TIMESTAMP       0x00FFFFFF
 289 #define SAR_TSQE_TYPE            0x60000000
 290 #define SAR_TSQE_TYPE_TIMER      0x00000000
 291 #define SAR_TSQE_TYPE_TSR        0x20000000
 292 #define SAR_TSQE_TYPE_IDLE       0x40000000
 293 #define SAR_TSQE_TYPE_TBD_COMP   0x60000000
 294
 295 #define SAR_TSQE_TAG(stat)      (((stat) >> 24) & 0x1f)
 296
 297 #define TSQSIZE            8192
 298 #define TSQ_NUM_ENTRIES    1024
 299 #define TSQ_ALIGNMENT      8192
 300
 301 struct tsq_entry
 302 {
 303         u32                     word_1;
 304         u32                     word_2;
 305 };
 306
 307 struct tsq_info
 308 {
 309         struct tsq_entry        *base;
 310         struct tsq_entry        *next;
 311         struct tsq_entry        *last;
 312         dma_addr_t              paddr;
 313 };
 314
 315 struct tst_info
 316 {
 317         struct vc_map           *vc;
 318         u32                     tste;
 319 };
 320
 321 #define TSTE_MASK               0x601fffff
 322
 323 #define TSTE_OPC_MASK           0x60000000
 324 #define TSTE_OPC_NULL           0x00000000
 325 #define TSTE_OPC_CBR            0x20000000
 326 #define TSTE_OPC_VAR            0x40000000
 327 #define TSTE_OPC_JMP            0x60000000
 328
 329 #define TSTE_PUSH_IDLE          0x01000000
 330 #define TSTE_PUSH_ACTIVE        0x02000000
 331
 332 #define TST_SWITCH_DONE         0
 333 #define TST_SWITCH_PENDING      1
 334 #define TST_SWITCH_WAIT         2
 335
 336 #define FBQ_SHIFT               9
 337 #define FBQ_SIZE                (1 << FBQ_SHIFT)
 338 #define FBQ_MASK                (FBQ_SIZE - 1)
 339
 340 struct sb_pool
 341 {
 342         unsigned int            index;
 343         struct sk_buff          *skb[FBQ_SIZE];
 344 };
 345
 346 #define POOL_HANDLE(queue, index)       (((queue + 1) << 16) | (index))
 347 #define POOL_QUEUE(handle)              (((handle) >> 16) - 1)
 348 #define POOL_INDEX(handle)              ((handle) & 0xffff)
 349
 350 struct idt77252_dev
 351 {
 352         struct tsq_info         tsq;            /* Transmit Status Queue */
 353         struct rsq_info         rsq;            /* Receive Status Queue */
 354
 355         struct pci_dev          *pcidev;        /* PCI handle (desriptor) */
 356         struct atm_dev          *atmdev;        /* ATM device desriptor */
 357
 358         void __iomem            *membase;       /* SAR's memory base address */
 359         unsigned long           srambase;       /* SAR's sram  base address */
 360         void __iomem            *fbq[4];        /* FBQ fill addresses */
 361
 362         struct semaphore        mutex;
 363         spinlock_t              cmd_lock;       /* for r/w utility/sram */
 364
 365         unsigned long           softstat;
 366         unsigned long           flags;          /* see blow */
 367
 368         struct work_struct      tqueue;
 369
 370         unsigned long           tct_base;       /* TCT base address in SRAM */
 371         unsigned long           rct_base;       /* RCT base address in SRAM */
 372         unsigned long           rt_base;        /* Rate Table base in SRAM */
 373         unsigned long           scd_base;       /* SCD base address in SRAM */
 374         unsigned long           tst[2];         /* TST base address in SRAM */
 375         unsigned long           abrst_base;     /* ABRST base address in SRAM */
 376         unsigned long           fifo_base;      /* RX FIFO base in SRAM */
 377
 378         unsigned long           irqstat[16];
 379
 380         unsigned int            sramsize;       /* SAR's sram size */
 381
 382         unsigned int            tct_size;       /* total TCT entries */
 383         unsigned int            rct_size;       /* total RCT entries */
 384         unsigned int            scd_size;       /* length of SCD */
 385         unsigned int            tst_size;       /* total TST entries */
 386         unsigned int            tst_free;       /* free TSTEs in TST */
 387         unsigned int            abrst_size;     /* size of ABRST in words */
 388         unsigned int            fifo_size;      /* size of RX FIFO in words */
 389
 390         unsigned int            vpibits;        /* Bits used for VPI index */
 391         unsigned int            vcibits;        /* Bits used for VCI index */
 392         unsigned int            vcimask;        /* Mask for VCI index */
 393
 394         unsigned int            utopia_pcr;     /* Utopia Itf's Cell Rate */
 395         unsigned int            link_pcr;       /* PHY's Peek Cell Rate */
 396
 397         struct vc_map           **vcs;          /* Open Connections */
 398         struct vc_map           **scd2vc;       /* SCD to Connection map */
 399
 400         struct tst_info         *soft_tst;      /* TST to Connection map */
 401         unsigned int            tst_index;      /* Current TST in use */
 402         struct timer_list       tst_timer;
 403         spinlock_t              tst_lock;
 404         unsigned long           tst_state;
 405
 406         struct sb_pool          sbpool[4];      /* Pool of RX skbuffs */
 407         struct sk_buff          *raw_cell_head; /* Pointer to raw cell queue */
 408         u32                     *raw_cell_hnd;  /* Pointer to RCQ handle */
 409         dma_addr_t              raw_cell_paddr;
 410
 411         int                     index;          /* SAR's ID */
 412         int                     revision;       /* chip revision */
 413
 414         char                    name[16];       /* Device name */
 415
 416         struct idt77252_dev     *next;
 417 };
 418
 419
 420 /* definition for flag field above */
 421 #define IDT77252_BIT_INIT               1
 422 #define IDT77252_BIT_INTERRUPT          2
 423
 424
 425 #define ATM_CELL_PAYLOAD         48
 426
 427 #define FREEBUF_ALIGNMENT        16
 428
 429 /*****************************************************************************/
 430 /*                                                                           */
 431 /* Makros                                                                    */
 432 /*                                                                           */
 433 /*****************************************************************************/
 434 #define ALIGN_ADDRESS(addr, alignment) \
 435         ((((u32)(addr)) + (((u32)(alignment))-1)) & ~(((u32)(alignment)) - 1))
 436
 437
 438 /*****************************************************************************/
 439 /*                                                                           */
 440 /*   ABR SAR Network operation Register                                      */
 441 /*                                                                           */
 442 /*****************************************************************************/
 443
 444 #define SAR_REG_DR0     (card->membase + 0x00)
 445 #define SAR_REG_DR1     (card->membase + 0x04)
 446 #define SAR_REG_DR2     (card->membase + 0x08)
 447 #define SAR_REG_DR3     (card->membase + 0x0C)
 448 #define SAR_REG_CMD     (card->membase + 0x10)
 449 #define SAR_REG_CFG     (card->membase + 0x14)
 450 #define SAR_REG_STAT    (card->membase + 0x18)
 451 #define SAR_REG_RSQB    (card->membase + 0x1C)
 452 #define SAR_REG_RSQT    (card->membase + 0x20)
 453 #define SAR_REG_RSQH    (card->membase + 0x24)
 454 #define SAR_REG_CDC     (card->membase + 0x28)
 455 #define SAR_REG_VPEC    (card->membase + 0x2C)
 456 #define SAR_REG_ICC     (card->membase + 0x30)
 457 #define SAR_REG_RAWCT   (card->membase + 0x34)
 458 #define SAR_REG_TMR     (card->membase + 0x38)
 459 #define SAR_REG_TSTB    (card->membase + 0x3C)
 460 #define SAR_REG_TSQB    (card->membase + 0x40)
 461 #define SAR_REG_TSQT    (card->membase + 0x44)
 462 #define SAR_REG_TSQH    (card->membase + 0x48)
 463 #define SAR_REG_GP      (card->membase + 0x4C)
 464 #define SAR_REG_VPM     (card->membase + 0x50)
 465 #define SAR_REG_RXFD    (card->membase + 0x54)
 466 #define SAR_REG_RXFT    (card->membase + 0x58)
 467 #define SAR_REG_RXFH    (card->membase + 0x5C)
 468 #define SAR_REG_RAWHND  (card->membase + 0x60)
 469 #define SAR_REG_RXSTAT  (card->membase + 0x64)
 470 #define SAR_REG_ABRSTD  (card->membase + 0x68)
 471 #define SAR_REG_ABRRQ   (card->membase + 0x6C)
 472 #define SAR_REG_VBRRQ   (card->membase + 0x70)
 473 #define SAR_REG_RTBL    (card->membase + 0x74)
 474 #define SAR_REG_MDFCT   (card->membase + 0x78)
 475 #define SAR_REG_TXSTAT  (card->membase + 0x7C)
 476 #define SAR_REG_TCMDQ   (card->membase + 0x80)
 477 #define SAR_REG_IRCP    (card->membase + 0x84)
 478 #define SAR_REG_FBQP0   (card->membase + 0x88)
 479 #define SAR_REG_FBQP1   (card->membase + 0x8C)
 480 #define SAR_REG_FBQP2   (card->membase + 0x90)
 481 #define SAR_REG_FBQP3   (card->membase + 0x94)
 482 #define SAR_REG_FBQS0   (card->membase + 0x98)
 483 #define SAR_REG_FBQS1   (card->membase + 0x9C)
 484 #define SAR_REG_FBQS2   (card->membase + 0xA0)
 485 #define SAR_REG_FBQS3   (card->membase + 0xA4)
 486 #define SAR_REG_FBQWP0  (card->membase + 0xA8)
 487 #define SAR_REG_FBQWP1  (card->membase + 0xAC)
 488 #define SAR_REG_FBQWP2  (card->membase + 0xB0)
 489 #define SAR_REG_FBQWP3  (card->membase + 0xB4)
 490 #define SAR_REG_NOW     (card->membase + 0xB8)
 491
 492
 493 /*****************************************************************************/
 494 /*                                                                           */
 495 /*   Commands                                                                */
 496 /*                                                                           */
 497 /*****************************************************************************/
 498
 499 #define SAR_CMD_NO_OPERATION         0x00000000
 500 #define SAR_CMD_OPENCLOSE_CONNECTION 0x20000000
 501 #define SAR_CMD_WRITE_SRAM           0x40000000
 502 #define SAR_CMD_READ_SRAM            0x50000000
 503 #define SAR_CMD_READ_UTILITY         0x80000000
 504 #define SAR_CMD_WRITE_UTILITY        0x90000000
 505
 506 #define SAR_CMD_OPEN_CONNECTION     (SAR_CMD_OPENCLOSE_CONNECTION | 0x00080000)
 507 #define SAR_CMD_CLOSE_CONNECTION     SAR_CMD_OPENCLOSE_CONNECTION
 508
 509
 510 /*****************************************************************************/
 511 /*                                                                           */
 512 /*   Configuration Register bits                                             */
 513 /*                                                                           */
 514 /*****************************************************************************/
 515
 516 #define SAR_CFG_SWRST          0x80000000  /* Software reset                 */
 517 #define SAR_CFG_LOOP           0x40000000  /* Internal Loopback              */
 518 #define SAR_CFG_RXPTH          0x20000000  /* Receive Path Enable            */
 519 #define SAR_CFG_IDLE_CLP       0x10000000  /* SAR set CLP Bits of Null Cells */
 520 #define SAR_CFG_TX_FIFO_SIZE_1 0x04000000  /* TX FIFO Size = 1 cell          */
 521 #define SAR_CFG_TX_FIFO_SIZE_2 0x08000000  /* TX FIFO Size = 2 cells         */
 522 #define SAR_CFG_TX_FIFO_SIZE_4 0x0C000000  /* TX FIFO Size = 4 cells         */
 523 #define SAR_CFG_TX_FIFO_SIZE_9 0x00000000  /* TX FIFO Size = 9 cells (full)  */
 524 #define SAR_CFG_NO_IDLE        0x02000000  /* SAR sends no Null Cells        */
 525 #define SAR_CFG_RSVD1          0x01000000  /* Reserved                       */
 526 #define SAR_CFG_RXSTQ_SIZE_2k  0x00000000  /* RX Stat Queue Size = 2048 byte */
 527 #define SAR_CFG_RXSTQ_SIZE_4k  0x00400000  /* RX Stat Queue Size = 4096 byte */
 528 #define SAR_CFG_RXSTQ_SIZE_8k  0x00800000  /* RX Stat Queue Size = 8192 byte */
 529 #define SAR_CFG_RXSTQ_SIZE_R   0x00C00000  /* RX Stat Queue Size = reserved  */
 530 #define SAR_CFG_ICAPT          0x00200000  /* accept Invalid Cells           */
 531 #define SAR_CFG_IGGFC          0x00100000  /* Ignore GFC                     */
 532 #define SAR_CFG_VPVCS_0        0x00000000  /* VPI/VCI Select bit range       */
 533 #define SAR_CFG_VPVCS_1        0x00040000  /* VPI/VCI Select bit range       */
 534 #define SAR_CFG_VPVCS_2        0x00080000  /* VPI/VCI Select bit range       */
 535 #define SAR_CFG_VPVCS_8        0x000C0000  /* VPI/VCI Select bit range       */
 536 #define SAR_CFG_CNTBL_1k       0x00000000  /* Connection Table Size          */
 537 #define SAR_CFG_CNTBL_4k       0x00010000  /* Connection Table Size          */
 538 #define SAR_CFG_CNTBL_16k      0x00020000  /* Connection Table Size          */
 539 #define SAR_CFG_CNTBL_512      0x00030000  /* Connection Table Size          */
 540 #define SAR_CFG_VPECA          0x00008000  /* VPI/VCI Error Cell Accept      */
 541 #define SAR_CFG_RXINT_NOINT    0x00000000  /* No Interrupt on PDU received   */
 542 #define SAR_CFG_RXINT_NODELAY  0x00001000  /* Interrupt without delay to host*/
 543 #define SAR_CFG_RXINT_256US    0x00002000  /* Interrupt with delay 256 usec  */
 544 #define SAR_CFG_RXINT_505US    0x00003000  /* Interrupt with delay 505 usec  */
 545 #define SAR_CFG_RXINT_742US    0x00004000  /* Interrupt with delay 742 usec  */
 546 #define SAR_CFG_RAWIE          0x00000800  /* Raw Cell Queue Interrupt Enable*/
 547 #define SAR_CFG_RQFIE          0x00000400  /* RSQ Almost Full Int Enable     */
 548 #define SAR_CFG_RSVD2          0x00000200  /* Reserved                       */
 549 #define SAR_CFG_CACHE          0x00000100  /* DMA on Cache Line Boundary     */
 550 #define SAR_CFG_TMOIE          0x00000080  /* Timer Roll Over Int Enable     */
 551 #define SAR_CFG_FBIE           0x00000040  /* Free Buffer Queue Int Enable   */
 552 #define SAR_CFG_TXEN           0x00000020  /* Transmit Operation Enable      */
 553 #define SAR_CFG_TXINT          0x00000010  /* Transmit status Int Enable     */
 554 #define SAR_CFG_TXUIE          0x00000008  /* Transmit underrun Int Enable   */
 555 #define SAR_CFG_UMODE          0x00000004  /* Utopia Mode Select             */
 556 #define SAR_CFG_TXSFI          0x00000002  /* Transmit status Full Int Enable*/
 557 #define SAR_CFG_PHYIE          0x00000001  /* PHY Interrupt Enable           */
 558
 559 #define SAR_CFG_TX_FIFO_SIZE_MASK 0x0C000000  /* TX FIFO Size Mask           */
 560 #define SAR_CFG_RXSTQSIZE_MASK 0x00C00000
 561 #define SAR_CFG_CNTBL_MASK     0x00030000
 562 #define SAR_CFG_RXINT_MASK     0x00007000
 563
 564
 565 /*****************************************************************************/
 566 /*                                                                           */
 567 /*   Status Register bits                                                    */
 568 /*                                                                           */
 569 /*****************************************************************************/
 570
 571 #define SAR_STAT_FRAC_3     0xF0000000 /* Fraction of Free Buffer Queue 3 */
 572 #define SAR_STAT_FRAC_2     0x0F000000 /* Fraction of Free Buffer Queue 2 */
 573 #define SAR_STAT_FRAC_1     0x00F00000 /* Fraction of Free Buffer Queue 1 */
 574 #define SAR_STAT_FRAC_0     0x000F0000 /* Fraction of Free Buffer Queue 0 */
 575 #define SAR_STAT_TSIF       0x00008000 /* Transmit Status Indicator       */
 576 #define SAR_STAT_TXICP      0x00004000 /* Transmit Status Indicator       */
 577 #define SAR_STAT_RSVD1      0x00002000 /* Reserved                        */
 578 #define SAR_STAT_TSQF       0x00001000 /* Transmit Status Queue full      */
 579 #define SAR_STAT_TMROF      0x00000800 /* Timer overflow                  */
 580 #define SAR_STAT_PHYI       0x00000400 /* PHY device Interrupt flag       */
 581 #define SAR_STAT_CMDBZ      0x00000200 /* ABR SAR Comand Busy Flag        */
 582 #define SAR_STAT_FBQ3A      0x00000100 /* Free Buffer Queue 3 Attention   */
 583 #define SAR_STAT_FBQ2A      0x00000080 /* Free Buffer Queue 2 Attention   */
 584 #define SAR_STAT_RSQF       0x00000040 /* Receive Status Queue full       */
 585 #define SAR_STAT_EPDU       0x00000020 /* End Of PDU Flag                 */
 586 #define SAR_STAT_RAWCF      0x00000010 /* Raw Cell Flag                   */
 587 #define SAR_STAT_FBQ1A      0x00000008 /* Free Buffer Queue 1 Attention   */
 588 #define SAR_STAT_FBQ0A      0x00000004 /* Free Buffer Queue 0 Attention   */
 589 #define SAR_STAT_RSQAF      0x00000002 /* Receive Status Queue almost full*/
 590 #define SAR_STAT_RSVD2      0x00000001 /* Reserved                        */
 591
 592
 593 /*****************************************************************************/
 594 /*                                                                           */
 595 /*   General Purpose Register bits                                           */
 596 /*                                                                           */
 597 /*****************************************************************************/
 598
 599 #define SAR_GP_TXNCC_MASK   0xff000000  /* Transmit Negative Credit Count   */
 600 #define SAR_GP_EEDI         0x00010000  /* EEPROM Data In                   */
 601 #define SAR_GP_BIGE         0x00008000  /* Big Endian Operation             */
 602 #define SAR_GP_RM_NORMAL    0x00000000  /* Normal handling of RM cells      */
 603 #define SAR_GP_RM_TO_RCQ    0x00002000  /* put RM cells into Raw Cell Queue */
 604 #define SAR_GP_RM_RSVD      0x00004000  /* Reserved                         */
 605 #define SAR_GP_RM_INHIBIT   0x00006000  /* Inhibit update of Connection tab */
 606 #define SAR_GP_PHY_RESET    0x00000008  /* PHY Reset                        */
 607 #define SAR_GP_EESCLK       0x00000004  /* EEPROM SCLK                      */
 608 #define SAR_GP_EECS         0x00000002  /* EEPROM Chip Select               */
 609 #define SAR_GP_EEDO         0x00000001  /* EEPROM Data Out                  */
 610
 611
 612 /*****************************************************************************/
 613 /*                                                                           */
 614 /*   SAR local SRAM layout for 128k work SRAM                                */
 615 /*                                                                           */
 616 /*****************************************************************************/
 617
 618 #define SAR_SRAM_SCD_SIZE        12
 619 #define SAR_SRAM_TCT_SIZE         8
 620 #define SAR_SRAM_RCT_SIZE         4
 621
 622 #define SAR_SRAM_TCT_128_BASE    0x00000
 623 #define SAR_SRAM_TCT_128_TOP     0x01fff
 624 #define SAR_SRAM_RCT_128_BASE    0x02000
 625 #define SAR_SRAM_RCT_128_TOP     0x02fff
 626 #define SAR_SRAM_FB0_128_BASE    0x03000
 627 #define SAR_SRAM_FB0_128_TOP     0x033ff
 628 #define SAR_SRAM_FB1_128_BASE    0x03400
 629 #define SAR_SRAM_FB1_128_TOP     0x037ff
 630 #define SAR_SRAM_FB2_128_BASE    0x03800
 631 #define SAR_SRAM_FB2_128_TOP     0x03bff
 632 #define SAR_SRAM_FB3_128_BASE    0x03c00
 633 #define SAR_SRAM_FB3_128_TOP     0x03fff
 634 #define SAR_SRAM_SCD_128_BASE    0x04000
 635 #define SAR_SRAM_SCD_128_TOP     0x07fff
 636 #define SAR_SRAM_TST1_128_BASE   0x08000
 637 #define SAR_SRAM_TST1_128_TOP    0x0bfff
 638 #define SAR_SRAM_TST2_128_BASE   0x0c000
 639 #define SAR_SRAM_TST2_128_TOP    0x0ffff
 640 #define SAR_SRAM_ABRSTD_128_BASE 0x10000
 641 #define SAR_SRAM_ABRSTD_128_TOP  0x13fff
 642 #define SAR_SRAM_RT_128_BASE     0x14000
 643 #define SAR_SRAM_RT_128_TOP      0x15fff
 644
 645 #define SAR_SRAM_FIFO_128_BASE   0x18000
 646 #define SAR_SRAM_FIFO_128_TOP    0x1ffff
 647
 648
 649 /*****************************************************************************/
 650 /*                                                                           */
 651 /*   SAR local SRAM layout for 32k work SRAM                                 */
 652 /*                                                                           */
 653 /*****************************************************************************/
 654
 655 #define SAR_SRAM_TCT_32_BASE     0x00000
 656 #define SAR_SRAM_TCT_32_TOP      0x00fff
 657 #define SAR_SRAM_RCT_32_BASE     0x01000
 658 #define SAR_SRAM_RCT_32_TOP      0x017ff
 659 #define SAR_SRAM_FB0_32_BASE     0x01800
 660 #define SAR_SRAM_FB0_32_TOP      0x01bff
 661 #define SAR_SRAM_FB1_32_BASE     0x01c00
 662 #define SAR_SRAM_FB1_32_TOP      0x01fff
 663 #define SAR_SRAM_FB2_32_BASE     0x02000
 664 #define SAR_SRAM_FB2_32_TOP      0x023ff
 665 #define SAR_SRAM_FB3_32_BASE     0x02400
 666 #define SAR_SRAM_FB3_32_TOP      0x027ff
 667 #define SAR_SRAM_SCD_32_BASE     0x02800
 668 #define SAR_SRAM_SCD_32_TOP      0x03fff
 669 #define SAR_SRAM_TST1_32_BASE    0x04000
 670 #define SAR_SRAM_TST1_32_TOP     0x04fff
 671 #define SAR_SRAM_TST2_32_BASE    0x05000
 672 #define SAR_SRAM_TST2_32_TOP     0x05fff
 673 #define SAR_SRAM_ABRSTD_32_BASE  0x06000
 674 #define SAR_SRAM_ABRSTD_32_TOP   0x067ff
 675 #define SAR_SRAM_RT_32_BASE      0x06800
 676 #define SAR_SRAM_RT_32_TOP       0x06fff
 677 #define SAR_SRAM_FIFO_32_BASE    0x07000
 678 #define SAR_SRAM_FIFO_32_TOP     0x07fff
 679
 680
 681 /*****************************************************************************/
 682 /*                                                                           */
 683 /*   TSR - Transmit Status Request                                           */
 684 /*                                                                           */
 685 /*****************************************************************************/
 686
 687 #define SAR_TSR_TYPE_TSR  0x80000000
 688 #define SAR_TSR_TYPE_TBD  0x00000000
 689 #define SAR_TSR_TSIF      0x20000000
 690 #define SAR_TSR_TAG_MASK  0x01F00000
 691
 692
 693 /*****************************************************************************/
 694 /*                                                                           */
 695 /*   TBD - Transmit Buffer Descriptor                                        */
 696 /*                                                                           */
 697 /*****************************************************************************/
 698
 699 #define SAR_TBD_EPDU      0x40000000
 700 #define SAR_TBD_TSIF      0x20000000
 701 #define SAR_TBD_OAM       0x10000000
 702 #define SAR_TBD_AAL0      0x00000000
 703 #define SAR_TBD_AAL34     0x04000000
 704 #define SAR_TBD_AAL5      0x08000000
 705 #define SAR_TBD_GTSI      0x02000000
 706 #define SAR_TBD_TAG_MASK  0x01F00000
 707
 708 #define SAR_TBD_VPI_MASK  0x0FF00000
 709 #define SAR_TBD_VCI_MASK  0x000FFFF0
 710 #define SAR_TBD_VC_MASK   (SAR_TBD_VPI_MASK | SAR_TBD_VCI_MASK)
 711
 712 #define SAR_TBD_VPI_SHIFT 20
 713 #define SAR_TBD_VCI_SHIFT 4
 714
 715
 716 /*****************************************************************************/
 717 /*                                                                           */
 718 /*   RXFD - Receive FIFO Descriptor                                          */
 719 /*                                                                           */
 720 /*****************************************************************************/
 721
 722 #define SAR_RXFD_SIZE_MASK     0x0F000000
 723 #define SAR_RXFD_SIZE_512      0x00000000  /* 512 words                      */
 724 #define SAR_RXFD_SIZE_1K       0x01000000  /* 1k words                       */
 725 #define SAR_RXFD_SIZE_2K       0x02000000  /* 2k words                       */
 726 #define SAR_RXFD_SIZE_4K       0x03000000  /* 4k words                       */
 727 #define SAR_RXFD_SIZE_8K       0x04000000  /* 8k words                       */
 728 #define SAR_RXFD_SIZE_16K      0x05000000  /* 16k words                      */
 729 #define SAR_RXFD_SIZE_32K      0x06000000  /* 32k words                      */
 730 #define SAR_RXFD_SIZE_64K      0x07000000  /* 64k words                      */
 731 #define SAR_RXFD_SIZE_128K     0x08000000  /* 128k words                     */
 732 #define SAR_RXFD_SIZE_256K     0x09000000  /* 256k words                     */
 733 #define SAR_RXFD_ADDR_MASK     0x001ffc00
 734
 735
 736 /*****************************************************************************/
 737 /*                                                                           */
 738 /*   ABRSTD - ABR + VBR Schedule Tables                                      */
 739 /*                                                                           */
 740 /*****************************************************************************/
 741
 742 #define SAR_ABRSTD_SIZE_MASK   0x07000000
 743 #define SAR_ABRSTD_SIZE_512    0x00000000  /* 512 words                      */
 744 #define SAR_ABRSTD_SIZE_1K     0x01000000  /* 1k words                       */
 745 #define SAR_ABRSTD_SIZE_2K     0x02000000  /* 2k words                       */
 746 #define SAR_ABRSTD_SIZE_4K     0x03000000  /* 4k words                       */
 747 #define SAR_ABRSTD_SIZE_8K     0x04000000  /* 8k words                       */
 748 #define SAR_ABRSTD_SIZE_16K    0x05000000  /* 16k words                      */
 749 #define SAR_ABRSTD_ADDR_MASK   0x001ffc00
 750
 751
 752 /*****************************************************************************/
 753 /*                                                                           */
 754 /*   RCTE - Receive Connection Table Entry                                   */
 755 /*                                                                           */
 756 /*****************************************************************************/
 757
 758 #define SAR_RCTE_IL_MASK       0xE0000000  /* inactivity limit               */
 759 #define SAR_RCTE_IC_MASK       0x1C000000  /* inactivity count               */
 760 #define SAR_RCTE_RSVD          0x02000000  /* reserved                       */
 761 #define SAR_RCTE_LCD           0x01000000  /* last cell data                 */
 762 #define SAR_RCTE_CI_VC         0x00800000  /* EFCI in previous cell of VC    */
 763 #define SAR_RCTE_FBP_01        0x00000000  /* 1. cell->FBQ0, others->FBQ1    */
 764 #define SAR_RCTE_FBP_1         0x00200000  /* use FBQ 1 for all cells        */
 765 #define SAR_RCTE_FBP_2         0x00400000  /* use FBQ 2 for all cells        */
 766 #define SAR_RCTE_FBP_3         0x00600000  /* use FBQ 3 for all cells        */
 767 #define SAR_RCTE_NZ_GFC        0x00100000  /* non zero GFC in all cell of VC */
 768 #define SAR_RCTE_CONNECTOPEN   0x00080000  /* VC is open                     */
 769 #define SAR_RCTE_AAL_MASK      0x00070000  /* mask for AAL type field s.b.   */
 770 #define SAR_RCTE_RAWCELLINTEN  0x00008000  /* raw cell interrupt enable      */
 771 #define SAR_RCTE_RXCONCELLADDR 0x00004000  /* RX constant cell address       */
 772 #define SAR_RCTE_BUFFSTAT_MASK 0x00003000  /* buffer status                  */
 773 #define SAR_RCTE_EFCI          0x00000800  /* EFCI Congestion flag           */
 774 #define SAR_RCTE_CLP           0x00000400  /* Cell Loss Priority flag        */
 775 #define SAR_RCTE_CRC           0x00000200  /* Recieved CRC Error             */
 776 #define SAR_RCTE_CELLCNT_MASK  0x000001FF  /* cell Count                     */
 777
 778 #define SAR_RCTE_AAL0          0x00000000  /* AAL types for ALL field        */
 779 #define SAR_RCTE_AAL34         0x00010000
 780 #define SAR_RCTE_AAL5          0x00020000
 781 #define SAR_RCTE_RCQ           0x00030000
 782 #define SAR_RCTE_OAM           0x00040000
 783
 784 #define TCMDQ_START             0x01000000
 785 #define TCMDQ_LACR              0x02000000
 786 #define TCMDQ_START_LACR        0x03000000
 787 #define TCMDQ_INIT_ER           0x04000000
 788 #define TCMDQ_HALT              0x05000000
 789
 790
 791 struct idt77252_skb_prv {
 792         struct scqe     tbd;    /* Transmit Buffer Descriptor */
 793         dma_addr_t      paddr;  /* DMA handle */
 794         u32             pool;   /* sb_pool handle */
 795 };
 796
 797 #define IDT77252_PRV_TBD(skb)   \
 798         (((struct idt77252_skb_prv *)(ATM_SKB(skb)+1))->tbd)
 799 #define IDT77252_PRV_PADDR(skb) \
 800         (((struct idt77252_skb_prv *)(ATM_SKB(skb)+1))->paddr)
 801 #define IDT77252_PRV_POOL(skb)  \
 802         (((struct idt77252_skb_prv *)(ATM_SKB(skb)+1))->pool)
 803
 804 /*****************************************************************************/
 805 /*                                                                           */
 806 /*   PCI related items                                                       */
 807 /*                                                                           */
 808 /*****************************************************************************/
 809
 810 #ifndef PCI_VENDOR_ID_IDT
 811 #define PCI_VENDOR_ID_IDT 0x111D
 812 #endif /* PCI_VENDOR_ID_IDT */
 813
 814 #ifndef PCI_DEVICE_ID_IDT_IDT77252
 815 #define PCI_DEVICE_ID_IDT_IDT77252 0x0003
 816 #endif /* PCI_DEVICE_ID_IDT_IDT772052 */
 817
 818
 819 #endif /* !(_IDT77252_H) */