drivers/net/wan/wanxl.h

   1 /*
   2  * wanXL serial card driver for Linux
   3  * definitions common to host driver and card firmware
   4  *
   5  * Copyright (C) 2003 Krzysztof Halasa <khc@pm.waw.pl>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of version 2 of the GNU General Public License
   9  * as published by the Free Software Foundation.
  10  */
  11
  12 #define RESET_WHILE_LOADING 0
  13
  14 /* you must rebuild the firmware if any of the following is changed */
  15 #define DETECT_RAM 0            /* needed for > 4MB RAM, 16 MB maximum */
  16 #define QUICC_MEMCPY_USES_PLX 1 /* must be used if the host has > 256 MB RAM */
  17
  18
  19 #define STATUS_CABLE_V35        2
  20 #define STATUS_CABLE_X21        3
  21 #define STATUS_CABLE_V24        4
  22 #define STATUS_CABLE_EIA530     5
  23 #define STATUS_CABLE_INVALID    6
  24 #define STATUS_CABLE_NONE       7
  25
  26 #define STATUS_CABLE_DCE        0x8000
  27 #define STATUS_CABLE_DSR        0x0010
  28 #define STATUS_CABLE_DCD        0x0008
  29 #define STATUS_CABLE_PM_SHIFT   5
  30
  31 #define PDM_OFFSET 0x1000
  32
  33 #define TX_BUFFERS 10           /* per port */
  34 #define RX_BUFFERS 30
  35 #define RX_QUEUE_LENGTH 40      /* card->host queue length - per card */
  36
  37 #define PACKET_EMPTY            0x00
  38 #define PACKET_FULL             0x10
  39 #define PACKET_SENT             0x20 /* TX only */
  40 #define PACKET_UNDERRUN         0x30 /* TX only */
  41 #define PACKET_PORT_MASK        0x03 /* RX only */
  42
  43 /* bit numbers in PLX9060 doorbell registers */
  44 #define DOORBELL_FROM_CARD_TX_0         0 /* packet sent by the card */
  45 #define DOORBELL_FROM_CARD_TX_1         1
  46 #define DOORBELL_FROM_CARD_TX_2         2
  47 #define DOORBELL_FROM_CARD_TX_3         3
  48 #define DOORBELL_FROM_CARD_RX           4
  49 #define DOORBELL_FROM_CARD_CABLE_0      5 /* cable/PM/etc. changed */
  50 #define DOORBELL_FROM_CARD_CABLE_1      6
  51 #define DOORBELL_FROM_CARD_CABLE_2      7
  52 #define DOORBELL_FROM_CARD_CABLE_3      8
  53
  54 #define DOORBELL_TO_CARD_OPEN_0         0
  55 #define DOORBELL_TO_CARD_OPEN_1         1
  56 #define DOORBELL_TO_CARD_OPEN_2         2
  57 #define DOORBELL_TO_CARD_OPEN_3         3
  58 #define DOORBELL_TO_CARD_CLOSE_0        4
  59 #define DOORBELL_TO_CARD_CLOSE_1        5
  60 #define DOORBELL_TO_CARD_CLOSE_2        6
  61 #define DOORBELL_TO_CARD_CLOSE_3        7
  62 #define DOORBELL_TO_CARD_TX_0           8 /* outbound packet queued */
  63 #define DOORBELL_TO_CARD_TX_1           9
  64 #define DOORBELL_TO_CARD_TX_2           10
  65 #define DOORBELL_TO_CARD_TX_3           11
  66
  67 /* firmware-only status bits, starting from last DOORBELL_TO_CARD + 1 */
  68 #define TASK_SCC_0                      12
  69 #define TASK_SCC_1                      13
  70 #define TASK_SCC_2                      14
  71 #define TASK_SCC_3                      15
  72
  73 #define ALIGN32(x) (((x) + 3) & 0xFFFFFFFC)
  74 #define BUFFER_LENGTH   ALIGN32(HDLC_MAX_MRU + 4) /* 4 bytes for 32-bit CRC */
  75
  76 /* Address of TX and RX buffers in 68360 address space */
  77 #define BUFFERS_ADDR    0x4000  /* 16 KB */
  78
  79 #ifndef __ASSEMBLER__
  80 #define PLX_OFFSET              0
  81 #else
  82 #define PLX_OFFSET              PLX + 0x80
  83 #endif
  84
  85 #define PLX_MAILBOX_0           (PLX_OFFSET + 0x40)
  86 #define PLX_MAILBOX_1           (PLX_OFFSET + 0x44)
  87 #define PLX_MAILBOX_2           (PLX_OFFSET + 0x48)
  88 #define PLX_MAILBOX_3           (PLX_OFFSET + 0x4C)
  89 #define PLX_MAILBOX_4           (PLX_OFFSET + 0x50)
  90 #define PLX_MAILBOX_5           (PLX_OFFSET + 0x54)
  91 #define PLX_MAILBOX_6           (PLX_OFFSET + 0x58)
  92 #define PLX_MAILBOX_7           (PLX_OFFSET + 0x5C)
  93 #define PLX_DOORBELL_TO_CARD    (PLX_OFFSET + 0x60)
  94 #define PLX_DOORBELL_FROM_CARD  (PLX_OFFSET + 0x64)
  95 #define PLX_INTERRUPT_CS        (PLX_OFFSET + 0x68)
  96 #define PLX_CONTROL             (PLX_OFFSET + 0x6C)
  97
  98 #ifdef __ASSEMBLER__
  99 #define PLX_DMA_0_MODE          (PLX + 0x100)
 100 #define PLX_DMA_0_PCI           (PLX + 0x104)
 101 #define PLX_DMA_0_LOCAL         (PLX + 0x108)
 102 #define PLX_DMA_0_LENGTH        (PLX + 0x10C)
 103 #define PLX_DMA_0_DESC          (PLX + 0x110)
 104 #define PLX_DMA_1_MODE          (PLX + 0x114)
 105 #define PLX_DMA_1_PCI           (PLX + 0x118)
 106 #define PLX_DMA_1_LOCAL         (PLX + 0x11C)
 107 #define PLX_DMA_1_LENGTH        (PLX + 0x120)
 108 #define PLX_DMA_1_DESC          (PLX + 0x124)
 109 #define PLX_DMA_CMD_STS         (PLX + 0x128)
 110 #define PLX_DMA_ARBITR_0        (PLX + 0x12C)
 111 #define PLX_DMA_ARBITR_1        (PLX + 0x130)
 112 #endif
 113
 114 #define DESC_LENGTH 12
 115
 116 /* offsets from start of status_t */
 117 /* card to host */
 118 #define STATUS_OPEN             0
 119 #define STATUS_CABLE            (STATUS_OPEN + 4)
 120 #define STATUS_RX_OVERRUNS      (STATUS_CABLE + 4)
 121 #define STATUS_RX_FRAME_ERRORS  (STATUS_RX_OVERRUNS + 4)
 122
 123 /* host to card */
 124 #define STATUS_PARITY           (STATUS_RX_FRAME_ERRORS + 4)
 125 #define STATUS_ENCODING         (STATUS_PARITY + 4)
 126 #define STATUS_CLOCKING         (STATUS_ENCODING + 4)
 127 #define STATUS_TX_DESCS         (STATUS_CLOCKING + 4)
 128
 129 #ifndef __ASSEMBLER__
 130
 131 typedef struct {
 132         volatile u32 stat;
 133         u32 address;            /* PCI address */
 134         volatile u32 length;
 135 }desc_t;
 136
 137
 138 typedef struct {
 139 // Card to host
 140         volatile u32 open;
 141         volatile u32 cable;
 142         volatile u32 rx_overruns;
 143         volatile u32 rx_frame_errors;
 144
 145 // Host to card
 146         u32 parity;
 147         u32 encoding;
 148         u32 clocking;
 149         desc_t tx_descs[TX_BUFFERS];
 150 }port_status_t;
 151
 152 #endif /* __ASSEMBLER__ */