Avago Technologies LSI53C1010 - Manual (Page 172)

7-6 Integrating SCRIPTS Programs into “C” Language Drivers
Figure 7.6 Data Structure and Type Definition
7.1.2.6 Using a Table
The example in Figure 7.7 creates two buffers, identify_msg and
test_unit_ready_cmd . The byte counts and addresses for these buffers
are then loaded into the CMD_ADR and SENDMSG elements of the
DSA_table array. These examples define a message and a command
buffer in the desired table and loads the bytes into the table. The
enumerated types are used in the Test Unit Ready example to index into
the table.
int init_table(void)
{
UBYTE *buf_ptr; /* temp ptr to ti tables */
/* allocate space for table */
buf_ptr =
(UBYTE far *) malloc((TABLE_SIZE
sizeof(ti_entry))+ 4);
/* did we get the memory */
if (buf_ptr == NULL) return(COMMANDFAILED);
/* dword align the table buffer, ByteAlignBuffer does
this */
dsa_table = (ti_entry *) ByteAlignBuffer(buf_ptr, 0);
/* This initializes the DSA register to point to the
buffer table that was allocated above*/
IOWrite32(PCIDeviceIOBase+DSA, getPhysAddr(dsa_table));
return(GOOD);
}