FreeCalypso > hg > fc-tourmaline
view src/gpf/osl/os_mis_fl.c @ 221:5bf097aeaad7
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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/* * This C module is a reconstruction based on the disassembly of * os_mis.obj in frame_na7_db_fl.lib from the Leonardo package. */ /* set of included headers from COFF symtab, slightly reordered: */ #include <stddef.h> #include <stdio.h> #include <string.h> #if 0 /* from first attempt at gcc-built fw, currently unused */ #include "../../riviera/rv/general.h" #include "../../riviera/rv/rv_general.h" #include "../../riviera/rvf/rvf_api.h" #include "../../services/ffs/ffs.h" #endif #include "nucleus.h" #include "typedefs.h" #include "os.h" #include "gdi.h" #include "os_types.h" #include "os_glob.h" #include "header.h" #include "vsi.h" #if 0 /* from first attempt at gcc-built fw, currently unused */ #include "drvconf.h" #include "../tst_pei/tstdriver.h" #endif #include "dar_func.h" #include "tools.h" typedef unsigned char u_char; char *NU_State[13] = { "NU_READY", "", "NU_SLEEP_SUSPEND", "", "", "NU_QUEUE_SUSPEND", "NU_SEMAPHORE_SUSPEND", "", "NU_PARTITION_SUSPEND", "NU_MEMORY_SUSPEND", "", "NU_FINISHED", "NU_TERMINATED", }; char *msg_type[4] = { "", "PRIMITIVE", "SIGNAL", "TIMEOUT", }; char *warning = "SYSTEM WARNING: "; T_GPF_DAR_PROPERTIES *dar; T_GPF_DAR_STRUCT os_dar; NU_PROTECT os_mis_Protect; u_char SystemErrorBuffer[256]; u_char DARErrorBuffer[256]; static u_char state; static int fd; static unsigned bytes_read; static u_char *msg; static unsigned count; static unsigned data_len; static unsigned dar_wrap_around; static unsigned dar_buffer_count; static unsigned dar_wrap_around_detected; LONG os_read_dar_ffs_data(USHORT entry, char *buffer, USHORT len) { /* * This function is only used to implement the READ_DAR_FILE * system primitive; this frill feature is currently deemed * not important enough to expend the effort to reconstruct * this function from disassembly. */ return(OS_ERROR); } LONG os_dar_set_filter(void) { if (dar) dar->diagnose_swe_filter(dar->gpf_use_id, dar->warning); return(OS_OK); } LONG os_dar_register(const void *dar_properties) { if (dar_properties) { os_dar.properties = (T_GPF_DAR_PROPERTIES *) dar_properties; os_dar.magic_nr = DAR_INITIALIZED; dar = (T_GPF_DAR_PROPERTIES *) dar_properties; } return(OS_OK); } void os_dar_init(void) { if (os_dar.magic_nr != DAR_INITIALIZED) dar = 0; } void os_SystemError(OS_HANDLE Caller, USHORT cause, char *buffer) { /* * The implementation of this function in the binary blob * which we are reversing is very complex. I am leaving it * as an empty stub for now. - Space Falcon */ } GLOBAL LONG os_ObjectInformation(OS_HANDLE Caller, USHORT Id, USHORT Handle, USHORT len, void *Buffer) { switch (Id) { case OS_OBJTASK: return os_TaskInformation(Handle, Buffer); case OS_OBJQUEUE: return os_QueueInformation(Handle, Buffer); case OS_OBJPARTITIONGROUP: return os_PartitionInformation(Handle, Buffer); case OS_OBJMEMORYPOOL: return os_MemoryInformation(Handle, Buffer); case OS_OBJTIMER: return os_TimerInformation(Handle, Buffer); case OS_OBJSEMAPHORE: return os_SemaphoreInformation(Handle, Buffer); default: return(OS_ERROR); } } GLOBAL LONG os_Initialize(void) { if (os_SemInit() == OS_ERROR) return(OS_ERROR); if (os_ProInit() == OS_ERROR) return(OS_ERROR); if (os_ComInit() == OS_ERROR) return(OS_ERROR); if (os_MemInit() == OS_ERROR) return(OS_ERROR); if (os_TimInit() == OS_ERROR) return(OS_ERROR); if (os_isr_init() == OS_ERROR) return(OS_ERROR); #if 0 if (os_EvGrpInit() == OS_ERROR) return(OS_ERROR); #endif /* * The original code zeroes out the first 32-bit word of * os_mis_Protect here. We don't really need to do that, * as it is a zeroed-on-boot bss var. */ os_dar_init(); /* inlined in the original */ return(OS_OK); }