FreeCalypso > hg > freecalypso-sw

annotate gsm-fw/gpf/osl/os_drv.c @ 923:10b4bed10192

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gsm-fw/L1: fix for the DSP patch corruption bug The L1 code we got from the LoCosto fw contains a feature for DSP CPU load measurement. This feature is a LoCosto-ism, i.e., not applicable to earlier DBB chips (Calypso) with their respective earlier DSP ROMs. Most of the code dealing with that feature is conditionalized as #if (DSP >= 38), but one spot was missed, and the MCU code was writing into an API word dealing with this feature. In TCS211 this DSP API word happens to be used by the DSP code patch, hence that write was corrupting the patched DSP code.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Mon, 19 Oct 2015 17:13:56 +0000
parents 46bdf41cb019
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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6 /* set of included headers from COFF symtab: */
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7 #include "gpfconf.h" /* FreeCalypso addition */
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8 #include "../../nucleus/nucleus.h"
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9 #include "typedefs.h"
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10 #include "gdi.h"
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11 #include "os.h"
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12
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13 typedef unsigned char u_char;
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14
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15 extern OS_HANDLE os_ext_pool_handle;
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17 static u_char *HISR_Stack;
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18 static T_DRV_SIGNAL *SignalID;
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19 static void (*DrvCallback)(T_DRV_SIGNAL *);
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20 static NU_HISR CallBack_HISR;
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21
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22 #define CB_HISR_STACK_SIZE 1024
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24 GLOBAL LONG
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25 os_ExecuteCallback(OS_HANDLE Caller, void (*Callback)(T_DRV_SIGNAL *),
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26 T_DRV_SIGNAL *Signal)
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27 {
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28 DrvCallback = Callback;
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29 SignalID = Signal;
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30 NU_Activate_HISR(&CallBack_HISR);
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31 return(OS_OK);
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32 }
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34 static void
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35 CallbackFunc(void)
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36 {
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37 DrvCallback(SignalID);
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38 }
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39
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40 GLOBAL LONG
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41 os_CreateCallback(void)
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42 {
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43 if (os_AllocateMemory(OS_NOTASK, (T_VOID_STRUCT **) &HISR_Stack,
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44 CB_HISR_STACK_SIZE, 0xFFFFFFFF,
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45 os_ext_pool_handle) == OS_ERROR)
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46 return(OS_ERROR);
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47 if (NU_Create_HISR(&CallBack_HISR, "CB_HISR", CallbackFunc, 2,
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48 HISR_Stack, CB_HISR_STACK_SIZE) == NU_SUCCESS)
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49 return(OS_OK);
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50 else
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51 return(OS_ERROR);
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52 }