source: trunk/src/win32k/dev16/d16init.c@ 2965

Last change on this file since 2965 was 2898, checked in by bird, 26 years ago

Symbol Database is implemented.
No scanning of the os2krnl file, the loaded image is now scaned to determin
which build, debug/retail and smp/uni.
And yet some more enhanchments like 16-bit logging.
File size: 8.3 KB
Line 
1/* $Id: d16init.c,v 1.6 2000-02-25 18:15:02 bird Exp $
2 *
3 * d16init - init routines for both drivers.
4 *
5 * IMPORTANT! Code and data defined here will be discarded after init is
6 * compleated. CodeEnd and DataEnd should not be set here.?
7 *
8 * Copyright (c) 1999 knut st. osmundsen
9 *
10 * Project Odin Software License can be found in LICENSE.TXT
11 *
12 */
13
14/*******************************************************************************
15* Defined Constants *
16*******************************************************************************/
17#define INCL_16
18#define INCL_DOSFILEMGR
19#define INCL_DOSDEVICES
20#define INCL_DOSMISC
21#define INCL_DOSERRORS
22#define INCL_NOPMAPI
23
24
25/*******************************************************************************
26* Header Files *
27*******************************************************************************/
28#include <os2.h>
29#include <devhdr.h>
30#include <devcmd.h>
31#include <strat2.h>
32#include <reqpkt.h>
33#include <dhcalls.h>
34
35#include <string.h>
36#include <memory.h>
37
38#include "probkrnl.h"
39#include "dev1632.h"
40#include "dev16.h"
41
42/**
43 * init function - device 0.
44 * Does nothing else than setting the device_help variable and
45 * fill the request packet.
46 * @returns Status word.
47 * @param pRpIn Pointer to input request packet. Actually the same memory as pRpOut but another struct.
48 * @param pRpOut Pointer to output request packet. Actually the same memory as pRpIn but another struct.
49 * @remark pRpIn and pRpOut points to the same memory.
50 */
51USHORT NEAR dev0Init(PRPINITIN pRpIn, PRPINITOUT pRpOut)
52{
53 Device_Help = pRpIn->DevHlpEP;
54
55 pRpOut->BPBArray = NULL;
56 pRpOut->CodeEnd = (USHORT)&CODE16END;
57 pRpOut->DataEnd = (USHORT)&DATA16END;
58 pRpOut->Unit = 0;
59 pRpOut->rph.Status = STATUS_DONE;
60 return STATUS_DONE;
61}
62
63
64/**
65 * init function - device 1.
66 * We will send an IOCtl request to the elf$ (device 0) which will
67 * perform the Ring-0 initiation of the driver.
68 * @returns Status word.
69 * @param pRpIn Pointer to input request packet. Actually the same memory as pRpOut but another struct.
70 * @param pRpOut Pointer to output request packet. Actually the same memory as pRpIn but another struct.
71 * @remark pRpIn and pRpOut points to the same memory.
72 */
73USHORT NEAR dev1Init(PRPINITIN pRpIn, PRPINITOUT pRpOut)
74{
75 APIRET rc;
76 D16R0INITPARAM param;
77 D16R0INITDATA data = {0};
78 HFILE hDev0 = 0;
79 USHORT usAction = 0;
80 NPSZ npszErrMsg = NULL;
81
82 rc = ProbeKernel(pRpIn);
83 if (rc == NO_ERROR)
84 {
85 rc = DosOpen("\\dev\\elf$", &hDev0, &usAction, 0UL, FILE_NORMAL,
86 OPEN_ACTION_FAIL_IF_NEW | OPEN_ACTION_OPEN_IF_EXISTS,
87 OPEN_SHARE_DENYNONE | OPEN_ACCESS_READONLY,
88 0UL);
89 if (rc == NO_ERROR)
90 {
91 param.pRpInitIn = pRpIn;
92 rc = DosDevIOCtl(&data, &param, D16_IOCTL_RING0INIT, D16_IOCTL_CAT, hDev0);
93 if (rc == NO_ERROR)
94 {
95 if (data.Status != STATUS_DONE)
96 npszErrMsg = "Ring-0 initiation failed\n\r";
97 else
98 {
99 /* FIXME quiet test! */
100 register NPSZ npsz = "Win32k.sys succesfully initiated!\n\r";
101 DosPutMessage(1, strlen(npsz)+1, npsz);
102 pRpOut->Status = data.Status;
103 }
104 }
105 else
106 {
107 APIRET rc2 = rc;
108 NPSZ npsz;
109 /*0123456789012345678901234567890 1*/
110 npszErrMsg = "DosDevIOCtl failed. rc= \n\r";
111
112 npsz = &npszErrMsg[29];
113 do
114 {
115 *npsz-- = (char)((rc2 % 10) + '0');
116 rc2 = rc2/10;
117 } while (rc2 > 0);
118 }
119
120 DosClose(hDev0);
121 }
122 else
123 npszErrMsg = "DosOpen failed.\n\r";
124 }
125 else
126 npszErrMsg = "ProbeKernel failed.\n\r";
127 pRpOut->BPBArray = NULL;
128 pRpOut->CodeEnd = (USHORT)&CODE16END;
129 pRpOut->DataEnd = (USHORT)&DATA16END;
130 pRpOut->Unit = 0;
131
132 if (npszErrMsg)
133 {
134 DosPutMessage(1, strlen(npszErrMsg) + 1, npszErrMsg);
135 return pRpOut->rph.Status = STATUS_DONE | STERR | ERROR_I24_QUIET_INIT_FAIL;
136 }
137
138 return pRpOut->rph.Status;
139}
140
141
142
143/**
144 * R0 16-bit initiation function.
145 * This gets TKSSBase, thunks parameters and calls R0 32-bit initiation function.
146 * @returns Status word.
147 * @param pRp Generic IO Control request packet.
148 */
149USHORT NEAR R0Init16(PRP_GENIOCTL pRp)
150{
151 USHORT usRc = STATUS_DONE;
152 APIRET rc;
153
154 /* First we're to get the DosTable2 stuff. */
155 rc = initGetDosTableData();
156 if (rc == NO_ERROR)
157 {
158 ULONG cPages;
159 char hLockParm[12] = {0};
160 ULONG ulLinParm;
161 char hLockData[12] = {0};
162 ULONG ulLinData;
163
164 if (!DevHelp_VirtToLin(SELECTOROF(pRp->ParmPacket), OFFSETOF(pRp->ParmPacket), &ulLinParm)
165 &&
166 !DevHelp_VirtToLin(SELECTOROF(pRp->DataPacket), OFFSETOF(pRp->DataPacket), &ulLinData)
167 )
168 {
169 if (!(rc = DevHelp_VMLock(VMDHL_LONG | VMDHL_WRITE,
170 ulLinParm, sizeof(D16R0INITPARAM),
171 (LIN)~0UL, SSToDS_16(&hLockParm[0]), &cPages))
172 &&
173 !DevHelp_VMLock(VMDHL_LONG | VMDHL_WRITE,
174 ulLinData, sizeof(D16R0INITDATA),
175 (LIN)~0UL, SSToDS_16(&hLockData[0]), &cPages)
176 )
177 { /* data and param is locked (do we need to lock the request packet too ?). */
178 /* create new 32-bit packet */
179 RP32INIT rp32init;
180
181 _fmemcpy(&rp32init, ((PD16R0INITPARAM)pRp->ParmPacket)->pRpInitIn, sizeof(RPINITIN));
182 if (((PD16R0INITPARAM)pRp->ParmPacket)->pRpInitIn->InitArgs == NULL ||
183 !DevHelp_VirtToLin(SELECTOROF(rp32init.InitArgs), OFFSETOF(rp32init.InitArgs), (PLIN)&rp32init.InitArgs)
184 )
185 {
186 usRc = CallR0Init32(SSToDS_16(&rp32init));
187 }
188 else
189 usRc |= ERROR_I24_INVALID_PARAMETER;
190
191 ((PD16R0INITDATA)pRp->DataPacket)->Status = usRc;
192
193 /* finished - unlock data and parm */
194 DevHelp_VMUnLock((LIN)SSToDS_16(&hLockParm[0]));
195 DevHelp_VMUnLock((LIN)SSToDS_16(&hLockData[0]));
196 }
197 else
198 usRc |= ERROR_I24_INVALID_PARAMETER;
199 }
200 else
201 usRc |= ERROR_I24_INVALID_PARAMETER;
202 }
203 else
204 usRc |= ERROR_I24_GEN_FAILURE;
205
206
207 #if 0
208 rc = DevHelp_VMLock(VMDHL_LONG | VMDHL_WRITE | VMDHL_VERIFY,
209 &DATA32START,
210 (ULONG)(&end) - (ULONG)&DATA32START),
211 (void*)-1,
212 &lock[0],
213 &cPages);
214
215 rc = DevHelp_VMLock(VMDHL_LONG | VMDHL_VERIFY,
216 &CODE32START,
217 (ULONG)(&CODE32END) - (ULONG)&CODE32START),
218 (void*)-1,
219 &lock[0],
220 &cPages);
221 #endif
222
223 return usRc;
224}
225
226
227
228/**
229 * Gets the data we need from the DosTables.
230 * This data is TKSSBase16, R0FlatCS16 and R0FlatDS16.
231 * @returns Same as DevHelp_GetDosVar.
232 * @status completely implemented.
233 * @author knut st. osmundsen (knut.stange.osmundsen@pmsc.no)
234 * @remark If you are not sure if TKSSBase16 is set or not, call this.
235 * After R0Init16 is called TKSSBase16 _is_ set.
236 * IMPORTANT! This function must _not_ be called after the initiation of the second device driver!!!
237 */
238USHORT NEAR initGetDosTableData(void)
239{
240 APIRET rc;
241 PDOSTABLE pDT;
242 PDOSTABLE2 pDT2;
243
244 if (TKSSBase16 != 0)
245 return NO_ERROR;
246
247 /* First we're to get the DosTable2 stuff. */
248 rc = DevHelp_GetDOSVar(9, 0, &pDT);
249 if (rc == NO_ERROR)
250 {
251 pDT2 = (PDOSTABLE2)((char FAR *)pDT + pDT->cul*4 + 1);
252 TKSSBase16 = (ULONG)pDT2->pTKSSBase;
253 R0FlatCS16 = (USHORT)pDT2->R0FlatCS;
254 R0FlatDS16 = (USHORT)pDT2->R0FlatDS;
255 }
256 return rc;
257}
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