114 lines
2.8 KiB
C
114 lines
2.8 KiB
C
/*****************************************************************************
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*
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* COPYRIGHT 1993 - COLORADO MEMORY SYSTEMS, INC.
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* ALL RIGHTS RESERVED.
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*
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******************************************************************************
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*
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* FILE: \SE\DRIVER\DEVICE\JUMBO\SRC\0X11021.C
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*
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* FUNCTION: cqd_SetRamPtr
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*
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* PURPOSE: Sets the ram ptr on the 8051.
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*
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* HISTORY:
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* $Log: J:\se.vcs\driver\q117cd\src\0x11021.c $
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*
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* Rev 1.4 10 Feb 1994 14:01:40 SCOTTMAK
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* Added a Sleep to guard against command overlap.
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* Wasn't returning status (although checked in calling routine).
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*
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* Rev 1.3 11 Jan 1994 14:31:38 KEVINKES
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* Removed magic numbers and replaced with defines.
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*
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* Rev 1.2 08 Nov 1993 14:03:46 KEVINKES
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* Removed all bit-field structures, removed all enumerated types, changed
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* all defines to uppercase, and removed all signed data types wherever
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* possible.
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*
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* Rev 1.1 25 Oct 1993 14:37:04 KEVINKES
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* Changed kdi_wt2ticks to kdi_wt004ms.
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*
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* Rev 1.0 18 Oct 1993 17:23:18 KEVINKES
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* Initial Revision.
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*
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*****************************************************************************/
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#define FCT_ID 0x11021
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#include "include\public\adi_api.h"
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#include "include\public\frb_api.h"
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#include "include\private\kdi_pub.h"
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#include "include\private\cqd_pub.h"
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#include "q117cd\include\cqd_defs.h"
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#include "q117cd\include\cqd_strc.h"
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#include "q117cd\include\cqd_hdr.h"
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/*endinclude*/
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dStatus cqd_SetRamPtr
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(
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/* INPUT PARAMETERS: */
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CqdContextPtr cqd_context,
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dUByte ram_addr
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/* UPDATE PARAMETERS: */
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/* OUTPUT PARAMETERS: */
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)
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/* COMMENTS: *****************************************************************
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*
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* DEFINITIONS: *************************************************************/
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{
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/* DATA: ********************************************************************/
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dStatus status; /* Status or error condition.*/
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/* CODE: ********************************************************************/
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if ((status = cqd_SendByte(
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cqd_context,
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FW_CMD_SET_RAM_PTR_LOW)) != DONT_PANIC) {
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return status;
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}
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kdi_Sleep(cqd_context->kdi_context, INTERVAL_CMD, dFALSE);
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if ((status = cqd_SendByte(
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cqd_context,
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(dUByte)((ram_addr & NIBBLE_MASK) + CMD_OFFSET))) != DONT_PANIC) {
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return status;
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}
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kdi_Sleep(cqd_context->kdi_context, INTERVAL_CMD, dFALSE);
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ram_addr >>= NIBBLE_SHIFT;
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if ((status = cqd_SendByte(
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cqd_context,
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FW_CMD_SET_RAM_PTR_HIGH)) != DONT_PANIC) {
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return status;
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}
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kdi_Sleep(cqd_context->kdi_context, INTERVAL_CMD, dFALSE);
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if ((status = cqd_SendByte(
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cqd_context,
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(dUByte)((ram_addr & NIBBLE_MASK) + CMD_OFFSET))) != DONT_PANIC) {
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return status;
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}
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kdi_Sleep(cqd_context->kdi_context, INTERVAL_CMD, dFALSE);
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return status;
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}
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