Category : OS/2 Files
Archive   : DD_IN_C.ZIP
Filename : MCA.H

 
Output of file : MCA.H contained in archive : DD_IN_C.ZIP
/*
ABIOS specific includes
*/

#define POS_BASE 0x100 /* MCA adapter base */
#define NUM_POS_BYTES 64 /* maximum num POS bytes */
#define MAX_NUM_SLOTS 8 /* model 80 8 slots */
#define POS_PORT 0x96 /* use this to enable POS */
#define POS_BASE 0x100 /* all POS regs start here*/

/* Constants used by ABIOS calls */

#define GET_LID_BLOCK_SIZE 0x01 /* ABIOS command */
#define POS_LID 0x10 /* get POS LID from ABIOS */
#define READ_POS_REGS_RAM 0x0B /* read POS from NVRAM */
#define WRITE_POS_REGS_RAM 0x0C /* write NVRAM POS data */
#define READ_POS_REGS_CARD 0x0D /* read POS data from card*/
#define WRITE_POS_REGS_CARD 0x0E /* write POS data to card */

/* ABIOS request function parameters */

typedef struct function_parms_def {
USHORT req_blk_len; /* length, must be init. */
USHORT LID; /* the LID */
USHORT unit; /* unit within a LID */
USHORT function; /* category of request */
USHORT resvd1; /* reserved */
USHORT resvd2; /* reserved */
USHORT ret_code; /* return code */
USHORT time_out; /* timeout in seconds */
} function_parms_type;

typedef struct service_parms_def {
UCHAR slot_num; /* 10h slot number */
UCHAR resvd3; /* 11h reserved */
USHORT card_ID; /* 12h card ID */
USHORT resvd4; /* 14h reserved */
UCHAR far *pos_buf; /* 16h address of buffer */
USHORT resvd5; /* 1Ah reserved */
USHORT resvd6; /* 1Ch reserved */
UCHAR resvd7[40]; /* 1Eh work area */
} service_parms_type;

/* LID request parameters */

typedef struct lid_service_parms_def {
UCHAR irpt_level; /* 10h interrupt level */
UCHAR arb_level; /* 11h arbitration level */
USHORT device_id; /* 12h device ID */
USHORT unit_count; /* 14h count of units */
USHORT flags; /* 16h LID flags */
USHORT blk_size; /* 18h req blk length */
USHORT secnd_id; /* 1Ah secondary dev ID */
USHORT resvd6; /* 1Ch reserved */
USHORT resvd7; /* 1Eh reserved */
} lid_service_parms_type;

/* complete request block */

typedef struct req_block_def {
function_parms_type f_parms;
service_parms_type s_parms;
} REQBLK;

/* complete LID block */

typedef struct lid_block_def {
function_parms_type f_parms;
lid_service_parms_type s_parms;
} LIDBLK;

/* card struct, contains ID and POS reg data */

typedef struct card_def {
USHORT card_ID; /* ID of the card slot */
UCHAR pos_regs[NUM_POS_BYTES];
} CARD;




  3 Responses to “Category : OS/2 Files
Archive   : DD_IN_C.ZIP
Filename : MCA.H

  1. Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

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