include/405_mal.h

   1 /* include/mal.h, openbios_walnut, walnut_bios 8/6/99 08:48:40 */
   2 /*----------------------------------------------------------------------------+
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  14 |
  15 |       Any person who transfers this source code or any derivative work
  16 |       must include the IBM copyright notice, this paragraph, and the
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  18 |
  19 |       COPYRIGHT   I B M   CORPORATION 1999
  20 |       LICENSED MATERIAL  -  PROGRAM PROPERTY OF I B M
  21 +----------------------------------------------------------------------------*/
  22 /*----------------------------------------------------------------------------+
  23 |
  24 |  File Name:   mal.h
  25 |
  26 |  Function:    Header file for the MAL (MADMAL) macro on the 405GP.
  27 |
  28 |  Author:      Mark Wisner
  29 |
  30 |  Change Activity-
  31 |
  32 |  Date        Description of Change                                       BY
  33 |  ---------   ---------------------                                       ---
  34 |  29-Apr-99   Created                                                     MKW
  35 |
  36 +----------------------------------------------------------------------------*/
  37 /*----------------------------------------------------------------------------+
  38 |  17-Nov-03  Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com
  39 |             Added register bit definitions to support multiple channels
  40 +----------------------------------------------------------------------------*/
  41 #ifndef _mal_h_
  42 #define _mal_h_
  43 /* MADMAL transmit and receive status/control bits  */
  44 /* for COMMAC bits, refer to the COMMAC header file */
  45
  46 #define MAL_TX_CTRL_READY 0x8000
  47 #define MAL_TX_CTRL_WRAP  0x4000
  48 #define MAL_TX_CTRL_CM    0x2000
  49 #define MAL_TX_CTRL_LAST  0x1000
  50 #define MAL_TX_CTRL_INTR  0x0400
  51
  52 #define MAL_RX_CTRL_EMPTY 0x8000
  53 #define MAL_RX_CTRL_WRAP  0x4000
  54 #define MAL_RX_CTRL_CM    0x2000
  55 #define MAL_RX_CTRL_LAST  0x1000
  56 #define MAL_RX_CTRL_FIRST 0x0800
  57 #define MAL_RX_CTRL_INTR  0x0400
  58
  59       /* Configuration Reg  */
  60 #define MAL_CR_MMSR       0x80000000
  61 #define MAL_CR_PLBP_1     0x00400000   /* lowsest is 00 */
  62 #define MAL_CR_PLBP_2     0x00800000
  63 #define MAL_CR_PLBP_3     0x00C00000   /* highest       */
  64 #define MAL_CR_GA         0x00200000
  65 #define MAL_CR_OA         0x00100000
  66 #define MAL_CR_PLBLE      0x00080000
  67 #define MAL_CR_PLBLT_1  0x00040000
  68 #define MAL_CR_PLBLT_2  0x00020000
  69 #define MAL_CR_PLBLT_3  0x00010000
  70 #define MAL_CR_PLBLT_4  0x00008000
  71 #define MAL_CR_PLBLT_DEFAULT 0x00078000 /* ????? */
  72 #define MAL_CR_PLBB       0x00004000
  73 #define MAL_CR_OPBBL      0x00000080
  74 #define MAL_CR_EOPIE      0x00000004
  75 #define MAL_CR_LEA        0x00000002
  76 #define MAL_CR_MSD        0x00000001
  77
  78     /* Error Status Reg    */
  79 #define MAL_ESR_EVB       0x80000000
  80 #define MAL_ESR_CID       0x40000000
  81 #define MAL_ESR_DE        0x00100000
  82 #define MAL_ESR_ONE       0x00080000
  83 #define MAL_ESR_OTE       0x00040000
  84 #define MAL_ESR_OSE       0x00020000
  85 #define MAL_ESR_PEIN      0x00010000
  86       /* same bit position as the IER */
  87       /* VV                      VV   */
  88 #define MAL_ESR_DEI       0x00000010
  89 #define MAL_ESR_ONEI      0x00000008
  90 #define MAL_ESR_OTEI      0x00000004
  91 #define MAL_ESR_OSEI      0x00000002
  92 #define MAL_ESR_PBEI      0x00000001
  93       /* ^^                      ^^   */
  94       /* Mal IER                      */
  95 #if defined(CONFIG_440SPE) || \
  96     defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
  97     defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
  98     defined(CONFIG_405EX)
  99 #define MAL_IER_PT        0x00000080
 100 #define MAL_IER_PRE       0x00000040
 101 #define MAL_IER_PWE       0x00000020
 102 #define MAL_IER_DE        0x00000010
 103 #define MAL_IER_OTE       0x00000004
 104 #define MAL_IER_OE        0x00000002
 105 #define MAL_IER_PE        0x00000001
 106 #else
 107 #define MAL_IER_DE        0x00000010
 108 #define MAL_IER_NE        0x00000008
 109 #define MAL_IER_TE        0x00000004
 110 #define MAL_IER_OPBE      0x00000002
 111 #define MAL_IER_PLBE      0x00000001
 112 #endif
 113
 114 /* MAL Channel Active Set and Reset Registers */
 115 #define MAL_TXRX_CASR   (0x80000000)
 116
 117 #define MAL_TXRX_CASR_V(__x)  (__x)  /* Channel 0 shifts 0, channel 1 shifts 1, etc */
 118
 119
 120 /* MAL Buffer Descriptor structure */
 121 typedef struct {
 122   short  ctrl;              /* MAL / Commac status control bits */
 123   short  data_len;          /* Max length is 4K-1 (12 bits)     */
 124   char  *data_ptr;          /* pointer to actual data buffer    */
 125 } mal_desc_t;
 126
 127 #endif