source: GPL/branches/uniaud32-2.1.x/drv32/strategy.c@ 523

Last change on this file since 523 was 523, checked in by David Azarewicz, 15 years ago

flush_workqueue hack, misc code cleanups
File size: 6.8 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 //dprintf(("StratInitComplete"));
122 return(RPDONE);
123}
124//******************************************************************************
125//******************************************************************************
126#pragma off (unreferenced)
127ULONG StratShutdown(RP __far *_rp)
128#pragma on (unreferenced)
129{
130 RPShutdown __far *rp = (RPShutdown __far *)_rp;
131
132 //dprintf(("StratShutdown %d", rp->Function));
133 if(rp->Function == 1) {//end of shutdown
134 OSS32_Shutdown();
135 }
136 return(RPDONE);
137}
138//******************************************************************************
139//******************************************************************************
140// Handle unsupported requests
141static ULONG StratError(RP __far*)
142{
143 return RPERR_COMMAND | RPDONE;
144}
145//******************************************************************************
146// Strategy dispatch table
147//
148// This table is used by the strategy routine to dispatch strategy requests
149//******************************************************************************
150typedef ULONG (*RPHandler)(RP __far* rp);
151RPHandler StratDispatch[] =
152{
153 StratInit, // 00 (BC): Initialization
154 StratError, // 01 (B ): Media check
155 StratError, // 02 (B ): Build BIOS parameter block
156 StratError, // 03 ( ): Unused
157 StratRead, // 04 (BC): Read
158 StratError, // 05 ( C): Nondestructive read with no wait
159 StratError, // 06 ( C): Input status
160 StratError, // 07 ( C): Input flush
161 StratWrite, // 08 (BC): Write
162 StratError, // 09 (BC): Write verify
163 StratError, // 0A ( C): Output status
164 StratError, // 0B ( C): Output flush
165 StratError, // 0C ( ): Unused
166 StratOpen, // 0D (BC): Open
167 StratClose, // 0E (BC): Close
168 StratError, // 0F (B ): Removable media check
169 StratIOCtl, // 10 (BC): IO Control
170 StratError, // 11 (B ): Reset media
171 StratError, // 12 (B ): Get logical unit
172 StratError, // 13 (B ): Set logical unit
173 StratError, // 14 ( C): Deinstall character device driver
174 StratError, // 15 ( ): Unused
175 StratError, // 16 (B ): Count partitionable fixed disks
176 StratError, // 17 (B ): Get logical unit mapping of fixed disk
177 StratError, // 18 ( ): Unused
178 StratError, // 19 ( ): Unused
179 StratError, // 1A ( ): Unused
180 StratError, // 1B ( ): Unused
181 StratShutdown, // 1C (BC): Notify start or end of system shutdown
182 StratError, // 1D (B ): Get driver capabilities
183 StratError, // 1E ( ): Unused
184 StratInitComplete // 1F (BC): Notify end of initialization
185};
186//******************************************************************************
187// Strategy entry point
188//
189// The strategy entry point must be declared according to the STRATEGY
190// calling convention, which fetches arguments from the correct registers.
191//******************************************************************************
192ULONG Strategy(RP __far* rp);
193#pragma aux (STRATEGY) Strategy "ALSA_STRATEGY";
194ULONG Strategy(RP __far* rp)
195{
196 if (rp->Command < sizeof(StratDispatch)/sizeof(StratDispatch[0]))
197 return(StratDispatch[rp->Command](rp));
198 else return(RPERR_COMMAND | RPDONE);
199}
200//******************************************************************************
201//******************************************************************************
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