source: trunk/src/win32k/dev16/d16strat.c@ 2912

Last change on this file since 2912 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: 9.1 KB
Line 
1/* $Id: d16strat.c,v 1.8 2000-02-25 18:15:02 bird Exp $
2 *
3 * d16strat.c - 16-bit strategy routine, device headers, device_helper (ptr)
4 * and 16-bit IOClts.
5 *
6 * Copyright (c) 1999 knut st. osmundsen
7 *
8 * Project Odin Software License can be found in LICENSE.TXT
9 *
10 */
11
12/*******************************************************************************
13* Defined Constants *
14*******************************************************************************/
15#define INCL_DOSERRORS
16#define INCL_NOPMAPI
17
18/*******************************************************************************
19* Header Files *
20*******************************************************************************/
21#include <os2.h>
22#include <devhdr.h>
23#include <devcmd.h>
24#include <strat2.h>
25#include <reqpkt.h>
26#include <dhcalls.h>
27
28/* Note that C-library function are only allowed during init! */
29
30#include "dev1632.h"
31#include "dev16.h"
32#include "win32k.h"
33
34
35/*******************************************************************************
36* Global Variables *
37*******************************************************************************/
38DDHDR aDevHdrs[2] = /* This is the first piece data in the driver!!!!!!! */
39{
40 {
41 (unsigned long)(void _far *)(&aDevHdrs[1]), /* NextHeader */
42 DEVLEV_3 | DEV_30 | DEV_CHAR_DEV, /* SDevAtt */
43 (unsigned short)(void _near *)strategyAsm0, /* StrategyEP */
44 0, /* InterruptEP */
45 "elf$ ", /* DevName */
46 0, /* SDevProtCS */
47 0, /* SDevProtDS */
48 0, /* SDevRealCS */
49 0, /* SDevRealDS */
50 DEV_16MB | DEV_IOCTL2 /* SDevCaps */
51 },
52 {
53 ~0UL, /* NextHeader */
54 DEVLEV_3 | DEV_30 | DEV_CHAR_DEV, /* SDevAtt */
55 (unsigned short)(void _near *)strategyAsm1, /* StrategyEP */
56 0, /* InterruptEP */
57 "win32k$ ", /* DevName */
58 0, /* SDevProtCS */
59 0, /* SDevProtDS */
60 0, /* SDevRealCS */
61 0, /* SDevRealDS */
62 DEV_16MB | DEV_IOCTL2 /* SDevCaps */
63 }
64};
65
66
67
68/*******************************************************************************
69* Internal Functions *
70*******************************************************************************/
71USHORT NEAR dev0GenIOCtl(PRP_GENIOCTL pRp);
72USHORT NEAR dev1GenIOCtl(PRP_GENIOCTL pRp);
73
74
75/**
76 * Strategy routine.
77 * @returns Status word.
78 * @param pRpH Pointer to request packed header. (Do not change the pointer!)
79 * @parma usDev Device number.
80 * @remark This function is called from the entrypoint in dev1st.asm
81 */
82USHORT NEAR strategy(PRPH pRpH, unsigned short usDev)
83{
84 switch (pRpH->Cmd)
85 {
86 case CMDInit: /* INIT command */
87 if (fInitTime)
88 {
89 if (usDev == 0)
90 return dev0Init((PRPINITIN)pRpH, (PRPINITOUT)pRpH);
91 else
92 return dev1Init((PRPINITIN)pRpH, (PRPINITOUT)pRpH);
93 }
94 break;
95
96 case CMDGenIOCTL: /* Generic IOCTL */
97 if (usDev == 0)
98 return dev0GenIOCtl((PRP_GENIOCTL)pRpH);
99 else
100 return dev1GenIOCtl((PRP_GENIOCTL)pRpH);
101
102 case CMDOpen: /* device open */
103 case CMDClose: /* device close */
104 case CMDDeInstall: /* De-Install driver */
105 case CMDShutdown:
106 return STATUS_DONE;
107 }
108
109 return STATUS_DONE | STATUS_ERR_UNKCMD;
110}
111
112extern char end;
113
114
115/**
116 * Generic I/O Control - device 0.
117 * This will only handle the request for Ring-0 initiation.
118 * @returns Status word.
119 * @param pRp Request packet.
120 */
121USHORT dev0GenIOCtl(PRP_GENIOCTL pRp)
122{
123 USHORT rc;
124
125 if (pRp->Category == D16_IOCTL_CAT)
126 {
127 switch (pRp->Function)
128 {
129 /*
130 * This is the IOCtl which does the R0-initiation of the device driver.
131 * Only available at init time...
132 */
133 case D16_IOCTL_RING0INIT:
134 if (fInitTime)
135 {
136 rc = R0Init16(pRp);
137 fInitTime = FALSE;
138 return rc;
139 }
140 break;
141
142 /*
143 * This is the IOCtl collects info of the running kernel.
144 * Only available at init time.
145 *
146 * Since this IOCtl is issued before R0-Init is done, we'll have to
147 * init TKSSBase for both 16-bit and 32-bit code and be a bit carefull.
148 */
149 case D16_IOCTL_GETKRNLINFO:
150 if (fInitTime)
151 {
152 ULONG ulLin;
153 if (fInitTime && TKSSBase16 == 0)
154 initGetDosTableData();
155 if (DevHelp_VirtToLin(SELECTOROF(pRp->DataPacket), OFFSETOF(pRp->DataPacket),
156 &ulLin) != NO_ERROR)
157 return STATUS_DONE | STERR | ERROR_I24_INVALID_PARAMETER;
158 return CallGetKernelInfo32(ulLin);
159 }
160 break;
161
162 /*
163 * This is the IOCtl verifies the data in the ImportTab.
164 * Only available at init time.
165 *
166 * Since this IOCtl is issued before R0-Init is done, we'll have to
167 * init TKSSBase for both 16-bit and 32-bit code and be a bit carefull.
168 */
169 case D16_IOCTL_VERIFYIMPORTTAB:
170 if (fInitTime)
171 {
172 if (TKSSBase16 == 0)
173 initGetDosTableData();
174 return CallVerifyImportTab32();
175 }
176 break;
177 }
178 }
179 else if (pRp->Category == IOCTL_W32K_K32 || pRp->Category == IOCTL_W32K_ELF)
180 {
181 RP32GENIOCTL rp32Init = {0};
182 rp32Init.rph.Len = pRp->rph.Len;
183 rp32Init.rph.Unit = pRp->rph.Unit;
184 rp32Init.rph.Cmd = pRp->rph.Cmd;
185 rp32Init.rph.Status = pRp->rph.Status;
186 rp32Init.rph.Flags = pRp->rph.Flags;
187 rp32Init.rph.Link = (ULONG)pRp->rph.Link;
188 rp32Init.Category = pRp->Category;
189 rp32Init.Function = pRp->Function;
190 rp32Init.sfn = pRp->sfn;
191 rp32Init.DataLen = pRp->DataLen;
192 rp32Init.ParmLen = pRp->ParmLen;
193
194 if (DevHelp_VirtToLin(SELECTOROF(pRp->DataPacket), OFFSETOF(pRp->DataPacket),
195 (PLIN)&rp32Init.DataPacket) != NO_ERROR)
196 return STATUS_DONE | STERR | ERROR_I24_INVALID_PARAMETER;
197 if (DevHelp_VirtToLin(SELECTOROF(pRp->ParmPacket), OFFSETOF(pRp->ParmPacket),
198 (PLIN)&rp32Init.ParmPacket) != NO_ERROR)
199 return STATUS_DONE | STERR | ERROR_I24_INVALID_PARAMETER;
200
201 if (pRp->Category == IOCTL_W32K_ELF)
202 rc = CallElfIOCtl(SSToDS_16a(&rp32Init));
203 else
204 rc = CallWin32kIOCtl(SSToDS_16a(&rp32Init));
205
206 return rc;
207 }
208
209
210 return STATUS_DONE | STERR | ERROR_I24_INVALID_PARAMETER;
211}
212
213
214/**
215 * Generic I/O Control - device 0.
216 * This will forward requests to 32-bit counterpart.
217 * @returns Status word.
218 * @param pRp Request packet.
219 */
220USHORT dev1GenIOCtl(PRP_GENIOCTL pRp)
221{
222 if (pRp->Category == IOCTL_W32K_K32 || pRp->Category == IOCTL_W32K_ELF)
223 {
224 USHORT rc;
225 RP32GENIOCTL rp32Init = {0};
226 rp32Init.rph.Len = pRp->rph.Len;
227 rp32Init.rph.Unit = pRp->rph.Unit;
228 rp32Init.rph.Cmd = pRp->rph.Cmd;
229 rp32Init.rph.Status = pRp->rph.Status;
230 rp32Init.rph.Flags = pRp->rph.Flags;
231 rp32Init.rph.Link = (ULONG)pRp->rph.Link;
232 rp32Init.Category = pRp->Category;
233 rp32Init.Function = pRp->Function;
234 rp32Init.sfn = pRp->sfn;
235 rp32Init.DataLen = pRp->DataLen;
236 rp32Init.ParmLen = pRp->ParmLen;
237
238 if (DevHelp_VirtToLin(SELECTOROF(pRp->DataPacket), OFFSETOF(pRp->DataPacket),
239 (PLIN)&rp32Init.DataPacket) != NO_ERROR)
240 return STATUS_DONE | STERR | ERROR_I24_INVALID_PARAMETER;
241 if (DevHelp_VirtToLin(SELECTOROF(pRp->ParmPacket), OFFSETOF(pRp->ParmPacket),
242 (PLIN)&rp32Init.ParmPacket) != NO_ERROR)
243 return STATUS_DONE | STERR | ERROR_I24_INVALID_PARAMETER;
244
245 if (pRp->Category == IOCTL_W32K_ELF)
246 rc = CallElfIOCtl(SSToDS_16a(&rp32Init));
247 else
248 rc = CallWin32kIOCtl(SSToDS_16a(&rp32Init));
249
250 return rc;
251 }
252
253 return STATUS_DONE | STERR | ERROR_I24_INVALID_PARAMETER;
254}
255
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