FreeCalypso > hg > fc-tourmaline

annotate src/gpf/osl/os_drv.c @ 221:5bf097aeaad7

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LLS: when turning off all LEDs on boot, skip LED-C Having LLS turn off LED-A and LED-B on boot is normally unnecessary (they should already be off in Iota), but it is harmless, hence this logic is kept for robustness. However, having LLS read-modify-write the BCICTL2 register (to turn off LED-C) creates a potential race condition with FCHG writes to this register, especially in the case when baseband switch-on is caused by VCHG and charging is expected to start right away. Furthermore, control of the charging LED itself (on those hw targets that have it) is the responsibility of the FCHG SWE, hence LLS should leave it alone.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 26 Apr 2021 21:55:13 +0000
parents 4e78acac3d88
children
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4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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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 }