source: GPL/branches/uniaud32-2.1.x/drv32/strategy.c@ 504

Last change on this file since 504 was 504, checked in by David Azarewicz, 15 years ago

Bring branch up-to-date with trunk
File size: 7.3 KB
Line 
1/* $Id: strategy.c,v 1.1.1.1 2003/07/02 13:56:56 eleph Exp $ */
2/*
3 * Strategy entry point
4 *
5 * (C) 2000-2002 InnoTek Systemberatung GmbH
6 * (C) 2000-2001 Sander van Leeuwen (sandervl@xs4all.nl)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public
19 * License along with this program; if not, write to the Free
20 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
21 * USA.
22 *
23 */
24
25#define INCL_NOPMAPI
26#define INCL_DOSINFOSEG // Need Global info seg in rm.cpp algorithms
27#include <os2.h>
28
29#include <devhelp.h>
30#include <devrp.h>
31#include <devown.h>
32#include "strategy.h"
33#include <ossidc32.h>
34#include <dbgos2.h>
35
36ULONG StratRead(RP __far *_rp);
37ULONG StratIOCtl(RP __far *_rp);
38ULONG StratClose(RP __far *_rp);
39
40ULONG DiscardableInit(RPInit __far*);
41
42ULONG deviceOwner = DEV_NO_OWNER;
43ULONG numOS2Opens = 0;
44
45//******************************************************************************
46//******************************************************************************
47ULONG StratOpen(RP __far*)
48{
49 if (numOS2Opens == 0) {
50 deviceOwner = DEV_PDD_OWNER;
51 }
52 numOS2Opens++;
53 return RPDONE;
54}
55//******************************************************************************
56//******************************************************************************
57#pragma off (unreferenced)
58static ULONG StratWrite(RP __far* _rp)
59#pragma on (unreferenced)
60{
61 return RPDONE | RPERR;
62}
63//******************************************************************************
64// External initialization entry-point
65//******************************************************************************
66ULONG StratInit(RP __far* _rp)
67{
68 ULONG rc;
69
70 RPInit __far* rp = (RPInit __far*)_rp;
71 rc = DiscardableInit(rp);
72 dprintf(("StratInit End rc=%d", rc));
73 return rc;
74}
75//******************************************************************************
76// External initialization complete entry-point
77#ifdef ACPI
78// See desription in irq.cpp
79#include "irqos2.h" //PS+++
80#ifdef __cplusplus
81extern "C" {
82#endif
83ULONG InitCompleteWas = 0; //PS+++ Indication of InitComplete call
84struct SaveIRQForSlot
85{
86 ULONG ulSlotNo;
87 BYTE LowIRQ;
88 BYTE HighIRQ;
89 BYTE Pin;
90};
91extern struct SaveIRQForSlot sISRHigh[];
92extern int SaveIRQCounter;
93#ifdef __cplusplus
94}
95#endif
96#endif //ACPI
97//******************************************************************************
98#pragma off (unreferenced)
99ULONG StratInitComplete(RP __far* _rp)
100#pragma on (unreferenced)
101{
102#ifdef ACPI
103//PS+++ Begin
104 ULONG i, rc = 0;
105
106 InitCompleteWas = 1;
107 for (i = 0; i < SaveIRQCounter; i++)
108 {
109 dprintf(("Close IRQ%d - Open IRQ%d",(ULONG)sISRHigh[i].LowIRQ,(ULONG)sISRHigh[i].HighIRQ));
110 if (sISRHigh[i].HighIRQ)
111 {
112 ALSA_FreeIrq(sISRHigh[i].LowIRQ);
113 if (!ALSA_SetIrq(sISRHigh[i].HighIRQ, sISRHigh[i].ulSlotNo, 1))
114 {
115 return (RPERR_COMMAND | RPDONE);
116 }
117 }
118 }
119#endif
120//PS++ End
121#ifdef DEBUG
122 dprintf(("StratInitComplete"));
123#endif
124 return(RPDONE);
125}
126//******************************************************************************
127//******************************************************************************
128#pragma off (unreferenced)
129ULONG StratShutdown(RP __far *_rp)
130#pragma on (unreferenced)
131{
132 RPShutdown __far *rp = (RPShutdown __far *)_rp;
133
134#ifdef DEBUG
135 dprintf(("StratShutdown %d", rp->Function));
136#endif
137 if(rp->Function == 1) {//end of shutdown
138 OSS32_Shutdown();
139 }
140 return(RPDONE);
141}
142//******************************************************************************
143//******************************************************************************
144// Handle unsupported requests
145static ULONG StratError(RP __far*)
146{
147 return RPERR_COMMAND | RPDONE;
148}
149//******************************************************************************
150// Strategy dispatch table
151//
152// This table is used by the strategy routine to dispatch strategy requests
153//******************************************************************************
154typedef ULONG (*RPHandler)(RP __far* rp);
155RPHandler StratDispatch[] =
156{
157 StratInit, // 00 (BC): Initialization
158 StratError, // 01 (B ): Media check
159 StratError, // 02 (B ): Build BIOS parameter block
160 StratError, // 03 ( ): Unused
161 StratRead, // 04 (BC): Read
162 StratError, // 05 ( C): Nondestructive read with no wait
163 StratError, // 06 ( C): Input status
164 StratError, // 07 ( C): Input flush
165 StratWrite, // 08 (BC): Write
166 StratError, // 09 (BC): Write verify
167 StratError, // 0A ( C): Output status
168 StratError, // 0B ( C): Output flush
169 StratError, // 0C ( ): Unused
170 StratOpen, // 0D (BC): Open
171 StratClose, // 0E (BC): Close
172 StratError, // 0F (B ): Removable media check
173 StratIOCtl, // 10 (BC): IO Control
174 StratError, // 11 (B ): Reset media
175 StratError, // 12 (B ): Get logical unit
176 StratError, // 13 (B ): Set logical unit
177 StratError, // 14 ( C): Deinstall character device driver
178 StratError, // 15 ( ): Unused
179 StratError, // 16 (B ): Count partitionable fixed disks
180 StratError, // 17 (B ): Get logical unit mapping of fixed disk
181 StratError, // 18 ( ): Unused
182 StratError, // 19 ( ): Unused
183 StratError, // 1A ( ): Unused
184 StratError, // 1B ( ): Unused
185 StratShutdown, // 1C (BC): Notify start or end of system shutdown
186 StratError, // 1D (B ): Get driver capabilities
187 StratError, // 1E ( ): Unused
188 StratInitComplete // 1F (BC): Notify end of initialization
189};
190//******************************************************************************
191// Strategy entry point
192//
193// The strategy entry point must be declared according to the STRATEGY
194// calling convention, which fetches arguments from the correct registers.
195//******************************************************************************
196ULONG Strategy(RP __far* rp);
197#pragma aux (STRATEGY) Strategy "ALSA_STRATEGY";
198ULONG Strategy(RP __far* rp)
199{
200 if (rp->Command < sizeof(StratDispatch)/sizeof(StratDispatch[0]))
201 return(StratDispatch[rp->Command](rp));
202 else return(RPERR_COMMAND | RPDONE);
203}
204//******************************************************************************
205//******************************************************************************
Note: See TracBrowser for help on using the repository browser.