include/405_mal.h

/* include/mal.h, openbios_walnut, walnut_bios 8/6/99 08:48:40 */
/*----------------------------------------------------------------------------+
|
|       This source code has been made available to you by IBM on an AS-IS
|       basis.  Anyone receiving this source is licensed under IBM
|       copyrights to use it in any way he or she deems fit, including
|       copying it, modifying it, compiling it, and redistributing it either
|       with or without modifications.  No license under IBM patents or
|       patent applications is to be implied by the copyright license.
|
|       Any user of this software should understand that IBM cannot provide
|       technical support for this software and will not be responsible for
|       any consequences resulting from the use of this software.
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|       Any person who transfers this source code or any derivative work
|       must include the IBM copyright notice, this paragraph, and the
|       preceding two paragraphs in the transferred software.
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|       COPYRIGHT   I B M   CORPORATION 1999
|       LICENSED MATERIAL  -  PROGRAM PROPERTY OF I B M
+----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------+
|
|  File Name:   mal.h
|
|  Function:    Header file for the MAL (MADMAL) macro on the 405GP.
|
|  Author:      Mark Wisner
|
|  Change Activity-
|
|  Date        Description of Change                                       BY
|  ---------   ---------------------                                       ---
|  29-Apr-99   Created                                                     MKW
|
+----------------------------------------------------------------------------*/
#ifndef _mal_h_
#define _mal_h_
/* MADMAL transmit and receive status/control bits  */
/* for COMMAC bits, refer to the COMMAC header file */

#define MAL_TX_CTRL_READY 0x8000
#define MAL_TX_CTRL_WRAP  0x4000
#define MAL_TX_CTRL_CM    0x2000
#define MAL_TX_CTRL_LAST  0x1000
#define MAL_TX_CTRL_INTR  0x0400

#define MAL_RX_CTRL_EMPTY 0x8000
#define MAL_RX_CTRL_WRAP  0x4000
#define MAL_RX_CTRL_CM	  0x2000
#define MAL_RX_CTRL_LAST  0x1000
#define MAL_RX_CTRL_FIRST 0x0800
#define MAL_RX_CTRL_INTR  0x0400

      /* Configuration Reg  */
#define MAL_CR_MMSR	  0x80000000
#define MAL_CR_PLBP_1	  0x00400000   /* lowsest is 00 */
#define MAL_CR_PLBP_2	  0x00800000
#define MAL_CR_PLBP_3	  0x00C00000   /* highest       */
#define MAL_CR_GA	  0x00200000
#define MAL_CR_OA	  0x00100000
#define MAL_CR_PLBLE	  0x00080000
#define MAL_CR_PLBLT_1  0x00040000
#define MAL_CR_PLBLT_2  0x00020000
#define MAL_CR_PLBLT_3  0x00010000
#define MAL_CR_PLBLT_4  0x00008000
#define MAL_CR_PLBLT_DEFAULT 0x00078000 /* ????? */
#define MAL_CR_PLBB	  0x00004000
#define MAL_CR_OPBBL	  0x00000080
#define MAL_CR_EOPIE	  0x00000004
#define MAL_CR_LEA	  0x00000002
#define MAL_CR_MSD	  0x00000001

    /* Error Status Reg    */
#define MAL_ESR_EVB	  0x80000000
#define MAL_ESR_CID	  0x40000000
#define MAL_ESR_DE	  0x00100000
#define MAL_ESR_ONE	  0x00080000
#define MAL_ESR_OTE	  0x00040000
#define MAL_ESR_OSE	  0x00020000
#define MAL_ESR_PEIN	  0x00010000
      /* same bit position as the IER */
      /* VV                      VV   */
#define MAL_ESR_DEI	  0x00000010
#define MAL_ESR_ONEI	  0x00000008
#define MAL_ESR_OTEI	  0x00000004
#define MAL_ESR_OSEI	  0x00000002
#define MAL_ESR_PBEI	  0x00000001
      /* ^^                      ^^   */
      /* Mal IER                      */
#define MAL_IER_DE	  0x00000010
#define MAL_IER_NE	  0x00000008
#define MAL_IER_TE	  0x00000004
#define MAL_IER_OPBE	  0x00000002
#define MAL_IER_PLBE	  0x00000001


/* MAL Buffer Descriptor structure */
typedef struct {
  short  ctrl;              /* MAL / Commac status control bits */
  short  data_len;          /* Max length is 4K-1 (12 bits)     */
  char  *data_ptr;          /* pointer to actual data buffer    */
} mal_desc_t;

#endif