| 1 | /* $Id: ossidc.cpp 151 2000-05-28 16:50:46Z sandervl $ */
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| 2 |
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| 3 | //******************************************************************************
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| 4 | // OS/2 IDC services (callback to 16 bits MMPM2 driver)
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| 5 | //
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| 6 | // Copyright 2000 Sander van Leeuwen (sandervl@xs4all.nl)
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| 7 | //
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| 8 | // This program is free software; you can redistribute it and/or
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| 9 | // modify it under the terms of the GNU General Public License as
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| 10 | // published by the Free Software Foundation; either version 2 of
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| 11 | // the License, or (at your option) any later version.
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| 12 | //
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| 13 | // This program is distributed in the hope that it will be useful,
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| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | // GNU General Public License for more details.
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| 17 | //
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| 18 | // You should have received a copy of the GNU General Public
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| 19 | // License along with this program; if not, write to the Free
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| 20 | // Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
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| 21 | // USA.
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| 22 | //
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| 23 | //******************************************************************************
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| 24 | #define INCL_NOPMAPI
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| 25 | #define INCL_DOSERRORS // for ERROR_INVALID_FUNCTION
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| 26 | #include <os2.h>
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| 27 | #include <ossdefos2.h>
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| 28 | #include <ossidc.h>
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| 29 | #include <devhelp.h>
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| 30 | #ifdef KEE
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| 31 | #include <kee.h>
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| 32 | #endif
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| 33 |
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| 34 | //******************************************************************************
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| 35 | //******************************************************************************
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| 36 | BOOL CallOSS16(ULONG cmd, ULONG param1, ULONG param2)
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| 37 | {
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| 38 | IDC16_PACKET idcpacket;
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| 39 | ULONG pPacket;
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| 40 | BOOL rc;
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| 41 |
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| 42 | if(idc16_PddHandler == 0) {
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| 43 | return FALSE;
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| 44 | }
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| 45 | idcpacket.param1 = param1;
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| 46 | idcpacket.param2 = param2;
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| 47 | #ifdef KEE
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| 48 | pPacket = (ULONG)__FlatToStack(&idcpacket);
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| 49 | #else
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| 50 | pPacket = (ULONG)__Compress48Pointer((char FAR48 *)&idcpacket);
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| 51 | #endif
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| 52 |
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| 53 | #ifdef KEE
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| 54 | //NOTE: This isn't safe if the compiler uses ebp (or esp) to hold
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| 55 | // idc16_PddHandler, cmd or pPacket!! (works now though)
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| 56 | KernThunkStackTo16();
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| 57 | //// KernSerialize16BitDD();
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| 58 | #endif
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| 59 | rc = idc16_PddHandler(cmd, pPacket);
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| 60 | #ifdef KEE
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| 61 | //// KernUnserialize16BitDD();
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| 62 | KernThunkStackTo32();
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| 63 | #endif
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| 64 |
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| 65 | return rc;
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| 66 | }
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| 67 | //******************************************************************************
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| 68 | //******************************************************************************
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| 69 | BOOL OSS32_SetIrq(int irq, ULONG handler)
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| 70 | {
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| 71 | return CallOSS16(IDC16_SETIRQ, irq, handler);
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| 72 | }
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| 73 | //******************************************************************************
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| 74 | //******************************************************************************
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| 75 | BOOL OSS32_FreeIrq(int irq)
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| 76 | {
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| 77 | return CallOSS16(IDC16_FREEIRQ, irq, 0);
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| 78 | }
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| 79 | //******************************************************************************
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| 80 | extern "C" int init_module();
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| 81 | extern "C" void cleanup_module();
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| 82 | //******************************************************************************
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| 83 | BOOL OSS32_InitDriver()
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| 84 | {
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| 85 | return init_module() == 0;
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| 86 | }
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| 87 | //******************************************************************************
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| 88 | //Called during OS/2 shutdown
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| 89 | //******************************************************************************
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| 90 | void OSS32_RemoveDriver()
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| 91 | {
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| 92 | cleanup_module();
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| 93 | }
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| 94 | //******************************************************************************
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| 95 | //******************************************************************************
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| 96 | extern "C" int OSS32_ProcessIRQ(int fWaveOut, unsigned long streamid)
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| 97 | {
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| 98 | return CallOSS16(IDC16_PROCESS, (fWaveOut) ? IDC16_WAVEOUT_IRQ : IDC16_WAVEIN_IRQ, streamid);
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| 99 | }
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| 100 | //******************************************************************************
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| 101 | //******************************************************************************
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| 102 | extern "C" int OSS32_ProcessMidiIRQ(unsigned long streamid)
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| 103 | {
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| 104 | return CallOSS16(IDC16_PROCESS, IDC16_MIDI_IRQ, streamid);
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| 105 | }
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| 106 | //******************************************************************************
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| 107 | //******************************************************************************
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