FreeCalypso > hg > fc-tourmaline
view src/gpf/osl/os_pro_fl.c @ 214:adfdbcd360fd
backlight evolution: API between Condat driver and MFW
With this change, the API between the Condat backlight driver
and its user in MFW now carries more abstract backlight state codes
(fully off, fully on, in call, charging boot mode) instead of
0-255 levels. This change is needed in order to more properly support
different hardware targets with different capabilities and approaches
in terms of backlight handling.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 23 Apr 2021 23:52:02 +0000 |
parents | 4e78acac3d88 |
children |
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/* * This C module is a reconstruction based on the disassembly of * os_pro.obj in frame_na7_db_fl.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" typedef unsigned char u_char; extern VOID *TCD_Current_Thread; extern T_OS_TASK_TABLE_ENTRY TaskTable[]; extern VOID os_TaskEntry(UNSIGNED, VOID *); static NU_SEMAPHORE ProSemCB; #define OS_NU_TASK_MAGIC 0xdeafbeef static int os_GetTaskEntry(USHORT Index, OS_HANDLE *Handle) { static USHORT Idx; if (Index == FIRST_ENTRY) Idx = 0; if (Index == FIRST_ENTRY || Index == NEXT_ENTRY) { while (++Idx <= MaxTasks && !TaskTable[Idx].Name[0]) ; } else Idx = Index; if (Idx <= MaxTasks && TaskTable[Idx].Name[0]) { *Handle = Idx; return(0); } else return(-1); } GLOBAL LONG os_TaskInformation(USHORT Index, char *Buffer) { DATA_ELEMENT TaskStatus; OPTION Prio, Preempt; UNSIGNED Count, TimeSlice, Size, MinStack; OS_HANDLE Handle; CHAR Name[NU_MAX_NAME]; u_char *StackBase, *sp; USHORT Untouched; if (os_GetTaskEntry(Index, &Handle) < 0) return(OS_ERROR); if (NU_Task_Information(&TaskTable[Handle].TaskCB.TCB, Name, &TaskStatus, &Count, &Prio, &Preempt, &TimeSlice, (VOID **) &StackBase, &Size, &MinStack) != NU_SUCCESS) return(OS_ERROR); Untouched = 0; for (sp = StackBase; sp < StackBase + Size; sp++) { if (*sp != INITIAL_STACK_VALUE) break; Untouched++; } sprintf(Buffer, "Name:%s Stat:%d Count:%ld Prio:%d Stack:%lx Size:%ld Untouched:%d", Name, TaskStatus, Count, 255 - Prio, (ULONG) StackBase, (LONG) Size, Untouched); return(OS_OK); } GLOBAL LONG os_StopTask(OS_HANDLE Caller, OS_HANDLE TaskHandle) { if (NU_Suspend_Task(&TaskTable[TaskHandle].TaskCB.TCB) == NU_SUCCESS) return(OS_OK); else return(OS_ERROR); } GLOBAL LONG os_StartTask(OS_HANDLE Caller, OS_HANDLE TaskHandle, ULONG Value) { if (NU_Resume_Task(&TaskTable[TaskHandle].TaskCB.TCB) == NU_SUCCESS) return(OS_OK); else return(OS_ERROR); } GLOBAL LONG os_ProInit(void) { USHORT i; if (NU_Create_Semaphore(&ProSemCB, "PROSEM", 1, NU_PRIORITY) != NU_SUCCESS) return(OS_ERROR); for (i = 1; i <= MaxTasks; i++) memset(&TaskTable[i], 0, sizeof(T_OS_TASK_TABLE_ENTRY)); return(OS_OK); } GLOBAL unsigned char os_GetTaskState(OS_HANDLE Caller, OS_HANDLE Handle) { if (TaskTable[Handle].Name[0]) return(TaskTable[Handle].TaskCB.TCB.tc_status); else return(255); } GLOBAL LONG os_GetTaskHandle(OS_HANDLE Caller, char *Name, OS_HANDLE *TaskHandle) { USHORT i; if (!Name) { 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) *TaskHandle = os_nu_task->handle; else *TaskHandle = OS_NOTASK; return(OS_OK); } for (i = 1; i <= MaxTasks; i++) if (TaskTable[i].Name[0] && !strncmp(Name, TaskTable[i].Name, RESOURCE_NAMELEN - 1)) { *TaskHandle = i; return(OS_OK); } return(OS_ERROR); } GLOBAL LONG os_GetTaskData(OS_HANDLE Handle, unsigned **tcb, u_char **stackbegin, u_char **stackend) { NU_TASK *task; if (!TaskTable[Handle].Name[0]) return(OS_ERROR); task = &TaskTable[Handle].TaskCB.TCB; *tcb = (unsigned *) task; *stackbegin = (u_char *) task->tc_stack_start; *stackend = (u_char *) task->tc_stack_end; return(OS_OK); } GLOBAL LONG os_GetScheduleCount(OS_HANDLE task_handle, int *schedule_count) { NU_TASK *task_cb; if (task_handle > MaxTasks) return(OS_ERROR); if (!TaskTable[task_handle].Name[0]) return(OS_ERROR); if (task_handle == OS_NOTASK) task_cb = (NU_TASK *) TCD_Current_Thread; else task_cb = &TaskTable[task_handle].TaskCB.TCB; *schedule_count = task_cb->tc_scheduled; return(OS_OK); } GLOBAL LONG os_DestroyTask(OS_HANDLE Caller, OS_HANDLE TaskHandle) { STATUS sts; if (NU_Terminate_Task(&TaskTable[TaskHandle].TaskCB.TCB) != NU_SUCCESS) return(OS_ERROR); if (NU_Delete_Task(&TaskTable[TaskHandle].TaskCB.TCB) != NU_SUCCESS) return(OS_ERROR); if (os_DeallocateMemory(Caller, TaskTable[TaskHandle].Stack) != OS_OK) return(OS_ERROR); sts = NU_Obtain_Semaphore(&ProSemCB, NU_SUSPEND); TaskTable[TaskHandle].Name[0] = 0; if (sts == NU_SUCCESS) NU_Release_Semaphore(&ProSemCB); return(OS_OK); } GLOBAL LONG os_CreateTask(OS_HANDLE Caller, char *Name, void (*TaskEntry)(OS_HANDLE, ULONG), ULONG StackSize, USHORT Priority, OS_HANDLE *TaskHandle, OS_HANDLE MemPoolHandle) { STATUS sem_sts; USHORT Handle; u_char *stack; sem_sts = NU_Obtain_Semaphore(&ProSemCB, NU_SUSPEND); for (Handle = 1; Handle <= MaxTasks; Handle++) if (!TaskTable[Handle].Name[0]) break; if (Handle > MaxTasks) { return_error: if (sem_sts == NU_SUCCESS) NU_Release_Semaphore(&ProSemCB); return(OS_ERROR); } if (os_AllocateMemory(Handle, &TaskTable[Handle].Stack, StackSize + 4, 0, MemPoolHandle) != OS_OK) goto return_error; stack = (u_char *)TaskTable[Handle].Stack + 4; memset(stack, INITIAL_STACK_VALUE, StackSize); *TaskTable[Handle].Stack = GUARD_PATTERN; if (NU_Create_Task(&TaskTable[Handle].TaskCB.TCB, Name, os_TaskEntry, Handle, 0, stack, StackSize, 255 - Priority, 0, NU_PREEMPT, NU_NO_START) != NU_SUCCESS) goto return_error; strncpy(TaskTable[Handle].Name, Name, RESOURCE_NAMELEN); TaskTable[Handle].Name[RESOURCE_NAMELEN-1] = 0; TaskTable[Handle].TaskEntry = TaskEntry; TaskTable[Handle].TaskCB.magic_nr = OS_NU_TASK_MAGIC; TaskTable[Handle].TaskCB.handle = Handle; *TaskHandle = Handle; if (sem_sts == NU_SUCCESS) NU_Release_Semaphore(&ProSemCB); return(OS_OK); } GLOBAL LONG os_ChangePreemption(char preempt) { if (NU_Change_Preemption(preempt) == NU_SUCCESS) return(OS_OK); else return(OS_ERROR); }