FreeCalypso > hg > fc-tourmaline
view src/gpf/osl/os_pro_ir.c @ 51:04aaa5622fa7
disable deep sleep when Iota LEDB is on
TI's Iota chip docs say that CLK13M must be running in order for
LEDB to work, and practical experience on Mot C139 which uses
Iota LEDB for its keypad backlight concurs: if Calypso enters
deep sleep while the keypad backlight is turned on, the light
flickers visibly as the chipset goes into and out of deep sleep.
TI's original L1 sleep manager code had logic to disable deep sleep
when LT_Status() returns nonzero, but that function only works
for B-Sample and C-Sample LT, always returns 0 on BOARD 41 - no
check of Iota LEDB status anywhere. Change this code for our
current hardware: disable deep sleep when Iota LEDB has been
turned on through LLS.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 19 Oct 2020 05:11:29 +0000 |
parents | 4e78acac3d88 |
children |
line wrap: on
line source
/* * This C module is a reconstruction based on the disassembly of * os_pro.obj in frame_na7_db_ir.lib from the Leonardo package. */ /* set of included headers from COFF symtab: */ #include <stdio.h> #include <string.h> #include "nucleus.h" #include "typedefs.h" #include "os.h" #include "gdi.h" #include "os_types.h" #include "os_glob.h" extern VOID *TCD_Current_Thread; extern T_OS_TASK_TABLE_ENTRY TaskTable[]; extern unsigned os_time_to_tick_multiplier; #define OS_NU_TASK_MAGIC 0xdeafbeef VOID os_TaskEntry(UNSIGNED TaskHandle, VOID *argv) { TaskTable[TaskHandle].TaskEntry(TaskHandle, 0); } GLOBAL LONG os_SuspendTask(OS_HANDLE Caller, ULONG Time) { UNSIGNED SuspendTicks; SuspendTicks = TIME_TO_SYSTEM_TICKS(Time); if (!SuspendTicks) SuspendTicks = 1; NU_Sleep(SuspendTicks); return (OS_OK); } GLOBAL LONG os_ResumeTask(OS_HANDLE task_handle) { if (NU_Resume_Task(&TaskTable[task_handle].TaskCB.TCB) == NU_SUCCESS) return(OS_OK); else return(OS_ERROR); } GLOBAL LONG os_Relinquish(void) { NU_Relinquish(); return(OS_OK); } GLOBAL OS_HANDLE os_MyHandle(void) { OS_NU_TASK *os_nu_task = (OS_NU_TASK *) TCD_Current_Thread; if (os_nu_task && os_nu_task->magic_nr == OS_NU_TASK_MAGIC) return(os_nu_task->handle); else return(OS_NOTASK); } GLOBAL LONG os_GetTaskName(OS_HANDLE Caller, OS_HANDLE TaskHandle, char *Name) { if (TaskHandle) { if (TaskHandle > MaxTasks || !TaskTable[TaskHandle].Name[0]) return(OS_ERROR); strcpy(Name, TaskTable[TaskHandle].Name); } else if (TCD_Current_Thread) { NU_TASK *curtask = TCD_Current_Thread; strcpy(Name, curtask->tc_name); } else strcpy(Name, "ROOT"); return(OS_OK); } GLOBAL LONG os_DeferTask(OS_HANDLE task_handle, OS_TIME time) { if (NU_Suspend_Task(&TaskTable[task_handle].TaskCB.TCB) == NU_SUCCESS) return(OS_OK); else return(OS_ERROR); } GLOBAL LONG os_CheckTaskStack(OS_HANDLE Handle) { #ifdef __GNUC__ register void *sp asm("sp"); #endif if (*TaskTable[Handle].Stack != GUARD_PATTERN) return(OS_ERROR); #ifdef __GNUC__ if (TCD_Current_Thread) { NU_TASK *curtask = TCD_Current_Thread; if (sp < curtask->tc_stack_start) return(OS_ERROR); } #endif return(OS_OK); }