drivers/net/bcm570x_autoneg.h

   1 /******************************************************************************/
   2 /*                                                                            */
   3 /* Broadcom BCM5700 Linux Network Driver, Copyright (c) 2001 Broadcom         */
   4 /* Corporation.                                                               */
   5 /* All rights reserved.                                                       */
   6 /*                                                                            */
   7 /* This program is free software; you can redistribute it and/or modify       */
   8 /* it under the terms of the GNU General Public License as published by       */
   9 /* the Free Software Foundation, located in the file LICENSE.                 */
  10 /*                                                                            */
  11 /* History:                                                                   */
  12 /******************************************************************************/
  13
  14
  15 #ifndef AUTONEG_H
  16 #define AUTONEG_H
  17
  18
  19 /******************************************************************************/
  20 /* Constants. */
  21 /******************************************************************************/
  22
  23 #define AN_LINK_TIMER_INTERVAL_US           9000       /* 10ms */
  24
  25 /* TRUE, FALSE */
  26 #define AN_TRUE                             1
  27 #define AN_FALSE                            0
  28
  29
  30 /******************************************************************************/
  31 /* Main data structure for keeping track of 802.3z auto-negotation state */
  32 /* variables as shown in Figure 37-6 of the IEEE 802.3z specification. */
  33 /******************************************************************************/
  34
  35 typedef struct
  36 {
  37     /* Current auto-negotiation state. */
  38     unsigned long State;
  39     #define AN_STATE_UNKNOWN                        0
  40     #define AN_STATE_AN_ENABLE                      1
  41     #define AN_STATE_AN_RESTART_INIT                2
  42     #define AN_STATE_AN_RESTART                     3
  43     #define AN_STATE_DISABLE_LINK_OK                4
  44     #define AN_STATE_ABILITY_DETECT_INIT            5
  45     #define AN_STATE_ABILITY_DETECT                 6
  46     #define AN_STATE_ACK_DETECT_INIT                7
  47     #define AN_STATE_ACK_DETECT                     8
  48     #define AN_STATE_COMPLETE_ACK_INIT              9
  49     #define AN_STATE_COMPLETE_ACK                   10
  50     #define AN_STATE_IDLE_DETECT_INIT               11
  51     #define AN_STATE_IDLE_DETECT                    12
  52     #define AN_STATE_LINK_OK                        13
  53     #define AN_STATE_NEXT_PAGE_WAIT_INIT            14
  54     #define AN_STATE_NEXT_PAGE_WAIT                 16
  55
  56     /* Link timer. */
  57     unsigned long LinkTime_us;
  58
  59     /* Current time. */
  60     unsigned long CurrentTime_us;
  61
  62     /* Need these values for consistency check. */
  63     unsigned short AbilityMatchCfg;
  64
  65     /* Ability, idle, and ack match functions. */
  66     unsigned long AbilityMatchCnt;
  67     char AbilityMatch;
  68     char IdleMatch;
  69     char AckMatch;
  70
  71     /* Tx config data */
  72     union
  73     {
  74         /* The TxConfig register is arranged as follows:                      */
  75         /*                                                                    */
  76         /* MSB                                                           LSB  */
  77         /* +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+  */
  78         /* | D7| D6| D5| D4| D3| D2| D1| D0|D15|D14|D13|D12|D11|D10| D9| D8|  */
  79         /* +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+  */
  80         struct
  81         {
  82 #ifdef BIG_ENDIAN_HOST
  83             unsigned int D7:1;        /* PS1 */
  84             unsigned int D6:1;        /* HD */
  85             unsigned int D5:1;        /* FD */
  86             unsigned int D4:1;
  87             unsigned int D3:1;
  88             unsigned int D2:1;
  89             unsigned int D1:1;
  90             unsigned int D0:1;
  91             unsigned int D15:1;       /* NP */
  92             unsigned int D14:1;       /* ACK */
  93             unsigned int D13:1;       /* RF2 */
  94             unsigned int D12:1;       /* RF1 */
  95             unsigned int D11:1;
  96             unsigned int D10:1;
  97             unsigned int D9:1;
  98             unsigned int D8:1;        /* PS2 */
  99 #else /* BIG_ENDIAN_HOST */
 100             unsigned int D8:1;        /* PS2 */
 101             unsigned int D9:1;
 102             unsigned int D10:1;
 103             unsigned int D11:1;
 104             unsigned int D12:1;       /* RF1 */
 105             unsigned int D13:1;       /* RF2 */
 106             unsigned int D14:1;       /* ACK */
 107             unsigned int D15:1;       /* NP */
 108             unsigned int D0:1;
 109             unsigned int D1:1;
 110             unsigned int D2:1;
 111             unsigned int D3:1;
 112             unsigned int D4:1;
 113             unsigned int D5:1;        /* FD */
 114             unsigned int D6:1;        /* HD */
 115             unsigned int D7:1;        /* PS1 */
 116 #endif
 117         } bits;
 118
 119         unsigned short AsUSHORT;
 120
 121         #define D8_PS2                      bits.D8
 122         #define D12_RF1                     bits.D12
 123         #define D13_RF2                     bits.D13
 124         #define D14_ACK                     bits.D14
 125         #define D15_NP                      bits.D15
 126         #define D5_FD                       bits.D5
 127         #define D6_HD                       bits.D6
 128         #define D7_PS1                      bits.D7
 129     } TxConfig;
 130
 131     /* Rx config data */
 132     union
 133     {
 134         /* The RxConfig register is arranged as follows:                      */
 135         /*                                                                    */
 136         /* MSB                                                           LSB  */
 137         /* +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+  */
 138         /* | D7| D6| D5| D4| D3| D2| D1| D0|D15|D14|D13|D12|D11|D10| D9| D8|  */
 139         /* +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+  */
 140         struct
 141         {
 142 #ifdef BIG_ENDIAN_HOST
 143             unsigned int D7:1;        /* PS1 */
 144             unsigned int D6:1;        /* HD */
 145             unsigned int D5:1;        /* FD */
 146             unsigned int D4:1;
 147             unsigned int D3:1;
 148             unsigned int D2:1;
 149             unsigned int D1:1;
 150             unsigned int D0:1;
 151             unsigned int D15:1;       /* NP */
 152             unsigned int D14:1;       /* ACK */
 153             unsigned int D13:1;       /* RF2 */
 154             unsigned int D12:1;       /* RF1 */
 155             unsigned int D11:1;
 156             unsigned int D10:1;
 157             unsigned int D9:1;
 158             unsigned int D8:1;        /* PS2 */
 159 #else /* BIG_ENDIAN_HOST */
 160             unsigned int D8:1;        /* PS2 */
 161             unsigned int D9:1;
 162             unsigned int D10:1;
 163             unsigned int D11:1;
 164             unsigned int D12:1;       /* RF1 */
 165             unsigned int D13:1;       /* RF2 */
 166             unsigned int D14:1;       /* ACK */
 167             unsigned int D15:1;       /* NP */
 168             unsigned int D0:1;
 169             unsigned int D1:1;
 170             unsigned int D2:1;
 171             unsigned int D3:1;
 172             unsigned int D4:1;
 173             unsigned int D5:1;        /* FD */
 174             unsigned int D6:1;        /* HD */
 175             unsigned int D7:1;        /* PS1 */
 176 #endif
 177         } bits;
 178
 179         unsigned short AsUSHORT;
 180     } RxConfig;
 181
 182     #define AN_CONFIG_NP                            0x0080
 183     #define AN_CONFIG_ACK                           0x0040
 184     #define AN_CONFIG_RF2                           0x0020
 185     #define AN_CONFIG_RF1                           0x0010
 186     #define AN_CONFIG_PS2                           0x0001
 187     #define AN_CONFIG_PS1                           0x8000
 188     #define AN_CONFIG_HD                            0x4000
 189     #define AN_CONFIG_FD                            0x2000
 190
 191
 192     /* Management registers. */
 193
 194     /* Control register. */
 195     union
 196     {
 197         struct
 198         {
 199             unsigned int an_enable:1;
 200             unsigned int loopback:1;
 201             unsigned int reset:1;
 202             unsigned int restart_an:1;
 203         } bits;
 204
 205         unsigned short AsUSHORT;
 206
 207         #define mr_an_enable                Mr0.bits.an_enable
 208         #define mr_loopback                 Mr0.bits.loopback
 209         #define mr_main_reset               Mr0.bits.reset
 210         #define mr_restart_an               Mr0.bits.restart_an
 211     } Mr0;
 212
 213     /* Status register. */
 214     union
 215     {
 216         struct
 217         {
 218             unsigned int an_complete:1;
 219             unsigned int link_ok:1;
 220         } bits;
 221
 222         unsigned short AsUSHORT;
 223
 224         #define mr_an_complete              Mr1.bits.an_complete
 225         #define mr_link_ok                  Mr1.bits.link_ok
 226     } Mr1;
 227
 228     /* Advertisement register. */
 229     union
 230     {
 231         struct
 232         {
 233             unsigned int reserved_4:5;
 234             unsigned int full_duplex:1;
 235             unsigned int half_duplex:1;
 236             unsigned int sym_pause:1;
 237             unsigned int asym_pause:1;
 238             unsigned int reserved_11:3;
 239             unsigned int remote_fault1:1;
 240             unsigned int remote_fault2:1;
 241             unsigned int reserved_14:1;
 242             unsigned int next_page:1;
 243         } bits;
 244
 245         unsigned short AsUSHORT;
 246
 247         #define mr_adv_full_duplex          Mr4.bits.full_duplex
 248         #define mr_adv_half_duplex          Mr4.bits.half_duplex
 249         #define mr_adv_sym_pause            Mr4.bits.sym_pause
 250         #define mr_adv_asym_pause           Mr4.bits.asym_pause
 251         #define mr_adv_remote_fault1        Mr4.bits.remote_fault1
 252         #define mr_adv_remote_fault2        Mr4.bits.remote_fault2
 253         #define mr_adv_next_page            Mr4.bits.next_page
 254     } Mr4;
 255
 256     /* Link partner advertisement register. */
 257     union
 258     {
 259         struct
 260         {
 261             unsigned int reserved_4:5;
 262             unsigned int lp_full_duplex:1;
 263             unsigned int lp_half_duplex:1;
 264             unsigned int lp_sym_pause:1;
 265             unsigned int lp_asym_pause:1;
 266             unsigned int reserved_11:3;
 267             unsigned int lp_remote_fault1:1;
 268             unsigned int lp_remote_fault2:1;
 269             unsigned int lp_ack:1;
 270             unsigned int lp_next_page:1;
 271         } bits;
 272
 273         unsigned short AsUSHORT;
 274
 275         #define mr_lp_adv_full_duplex       Mr5.bits.lp_full_duplex
 276         #define mr_lp_adv_half_duplex       Mr5.bits.lp_half_duplex
 277         #define mr_lp_adv_sym_pause         Mr5.bits.lp_sym_pause
 278         #define mr_lp_adv_asym_pause        Mr5.bits.lp_asym_pause
 279         #define mr_lp_adv_remote_fault1     Mr5.bits.lp_remote_fault1
 280         #define mr_lp_adv_remote_fault2     Mr5.bits.lp_remote_fault2
 281         #define mr_lp_adv_next_page         Mr5.bits.lp_next_page
 282     } Mr5;
 283
 284     /* Auto-negotiation expansion register. */
 285     union
 286     {
 287         struct
 288         {
 289             unsigned int reserved_0:1;
 290             unsigned int page_received:1;
 291             unsigned int next_pageable:1;
 292             unsigned int reserved_15:13;
 293         } bits;
 294
 295         unsigned short AsUSHORT;
 296     } Mr6;
 297
 298     /* Auto-negotiation next page transmit register. */
 299     union
 300     {
 301         struct
 302         {
 303             unsigned int code_field:11;
 304             unsigned int toggle:1;
 305             unsigned int ack2:1;
 306             unsigned int message_page:1;
 307             unsigned int reserved_14:1;
 308             unsigned int next_page:1;
 309         } bits;
 310
 311         unsigned short AsUSHORT;
 312
 313         #define mr_np_tx                    Mr7.AsUSHORT
 314     } Mr7;
 315
 316     /* Auto-negotiation link partner ability register. */
 317     union
 318     {
 319         struct
 320         {
 321             unsigned int code_field:11;
 322             unsigned int toggle:1;
 323             unsigned int ack2:1;
 324             unsigned int message_page:1;
 325             unsigned int ack:1;
 326             unsigned int next_page:1;
 327         } bits;
 328
 329         unsigned short AsUSHORT;
 330
 331         #define mr_lp_np_rx                 Mr8.AsUSHORT
 332     } Mr8;
 333
 334     /* Extended status register. */
 335     union
 336     {
 337         struct
 338         {
 339             unsigned int reserved_11:12;
 340             unsigned int base1000_t_hd:1;
 341             unsigned int base1000_t_fd:1;
 342             unsigned int base1000_x_hd:1;
 343             unsigned int base1000_x_fd:1;
 344         } bits;
 345
 346         unsigned short AsUSHORT;
 347     } Mr15;
 348
 349     /* Miscellaneous state variables. */
 350     union
 351     {
 352         struct
 353         {
 354             unsigned int toggle_tx:1;
 355             unsigned int toggle_rx:1;
 356             unsigned int np_rx:1;
 357             unsigned int page_rx:1;
 358             unsigned int np_loaded:1;
 359         } bits;
 360
 361         unsigned short AsUSHORT;
 362
 363         #define mr_toggle_tx                MrMisc.bits.toggle_tx
 364         #define mr_toggle_rx                MrMisc.bits.toggle_rx
 365         #define mr_np_rx                    MrMisc.bits.np_rx
 366         #define mr_page_rx                  MrMisc.bits.page_rx
 367         #define mr_np_loaded                MrMisc.bits.np_loaded
 368     } MrMisc;
 369
 370
 371     /* Implement specifics */
 372
 373     /* Pointer to the operating system specific data structure. */
 374     void *pContext;
 375 } AN_STATE_INFO, *PAN_STATE_INFO;
 376
 377
 378 /******************************************************************************/
 379 /* Return code of Autoneg8023z. */
 380 /******************************************************************************/
 381
 382 typedef enum
 383 {
 384     AUTONEG_STATUS_OK               = 0,
 385     AUTONEG_STATUS_DONE             = 1,
 386     AUTONEG_STATUS_TIMER_ENABLED    = 2,
 387     AUTONEG_STATUS_FAILED           = 0xfffffff
 388 } AUTONEG_STATUS, *PAUTONEG_STATUS;
 389
 390
 391 /******************************************************************************/
 392 /* Function prototypes. */
 393 /******************************************************************************/
 394
 395 AUTONEG_STATUS Autoneg8023z(PAN_STATE_INFO pAnInfo);
 396 void AutonegInit(PAN_STATE_INFO pAnInfo);
 397
 398
 399 /******************************************************************************/
 400 /* The following functions are defined in the os-dependent module. */
 401 /******************************************************************************/
 402
 403 void MM_AnTxConfig(PAN_STATE_INFO pAnInfo);
 404 void MM_AnTxIdle(PAN_STATE_INFO pAnInfo);
 405 char MM_AnRxConfig(PAN_STATE_INFO pAnInfo, unsigned short *pRxConfig);
 406
 407
 408 #endif /* AUTONEG_H */