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annotate src/gpf2/osl/os_drv.c @ 702:9394305d4ff5 default tip

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etm_audio.c: fix off-by-one error in auw of FIR coefficients This fix was already made in FC Tourmaline a while back, but it is also the kind of bugfix that deserves to be backported to Magnetite and Selenite as well.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 31 Oct 2022 00:14:44 +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 }