FreeCalypso > hg > fc-magnetite

annotate src/gpf2/osl/os_drv.c @ 597:f18b29e27be5

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First attempt at MCSI voice path automatic switching The function is implemented at the ACI level in both aci2 and aci3, successfully avoids triggering the DSP bug on the first call, but the shutdown of MCSI upon call completion is not working properly yet in either version.
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 27 Mar 2019 22:18:35 +0000
parents 045d641c9bfa
children
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1 /*
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2 * This C module is a reconstruction based on the disassembly of
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3 * os_drv.obj in frame_na7_db_fl.lib from the Leonardo package.
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4 */
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5
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6 /* set of included headers from COFF symtab: */
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7 #include "nucleus.h"
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8 #include "typedefs.h"
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9 #include "gdi.h"
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10 #include "os.h"
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11
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12 typedef unsigned char u_char;
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13
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14 extern OS_HANDLE os_ext_pool_handle;
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15
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16 static u_char *HISR_Stack;
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17 static T_DRV_SIGNAL *SignalID;
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18 static void (*DrvCallback)(T_DRV_SIGNAL *);
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19 static NU_HISR CallBack_HISR;
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20
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21 #define CB_HISR_STACK_SIZE 1024
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22
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23 GLOBAL LONG
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24 os_ExecuteCallback(OS_HANDLE Caller, void (*Callback)(T_DRV_SIGNAL *),
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25 T_DRV_SIGNAL *Signal)
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26 {
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27 DrvCallback = Callback;
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28 SignalID = Signal;
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29 NU_Activate_HISR(&CallBack_HISR);
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30 return(OS_OK);
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31 }
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32
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33 static void
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34 CallbackFunc(void)
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35 {
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36 DrvCallback(SignalID);
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37 }
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38
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39 GLOBAL LONG
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40 os_CreateCallback(void)
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41 {
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42 if (os_AllocateMemory(OS_NOTASK, (T_VOID_STRUCT **) &HISR_Stack,
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43 CB_HISR_STACK_SIZE, 0xFFFFFFFF,
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44 os_ext_pool_handle) == OS_ERROR)
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45 return(OS_ERROR);
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46 if (NU_Create_HISR(&CallBack_HISR, "CB_HISR", CallbackFunc, 2,
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47 HISR_Stack, CB_HISR_STACK_SIZE) == NU_SUCCESS)
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48 return(OS_OK);
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49 else
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50 return(OS_ERROR);
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51 }