FreeCalypso > hg > fc-tourmaline
view src/gpf/osl/os_com_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_com.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" extern T_OS_COM_TABLE_ENTRY ComTable[]; static NU_SEMAPHORE ComSemCB; static int os_GetQueueEntry(USHORT Index, OS_HANDLE *Handle) { static USHORT Idx; if (Index == FIRST_ENTRY) Idx = 0; if (Index == FIRST_ENTRY || Index == NEXT_ENTRY) { while (++Idx <= MaxCommunications && !ComTable[Idx].Name[0]) ; } else Idx = Index; if (Idx <= MaxCommunications && ComTable[Idx].Name[0]) { *Handle = Idx; return(0); } else return(-1); } GLOBAL LONG os_QueueInformation(USHORT Index, char *Buffer) { OS_HANDLE Handle; T_OS_COM_TABLE_ENTRY *ent; UNSIGNED Used; OPTION SuspendType; UNSIGNED TasksWaiting; NU_TASK *First; CHAR Name[NU_MAX_NAME]; if (os_GetQueueEntry(Index, &Handle) < 0) return(OS_ERROR); ent = ComTable + Handle; if (NU_Semaphore_Information(&ent->UsedSemCB, Name, &Used, &SuspendType, &TasksWaiting, &First) != NU_SUCCESS) return(OS_ERROR); sprintf(Buffer, "Name:%s Startadr:%lx Entries:%d Used:%ld MaxUsed:%d", ent->Name, (ULONG)ent->pQueueMemory, ent->Entries, (LONG)Used, ent->MaxUsed); return(OS_OK); } GLOBAL LONG os_OpenQueue(OS_HANDLE TaskHandle, char *Name, OS_HANDLE *ComHandle) { USHORT i; if (!Name) return(OS_ERROR); for (i = 1; i <= MaxCommunications; i++) if (ComTable[i].Name[0] && !strncmp(ComTable[i].Name, Name, RESOURCE_NAMELEN - 1)) { *ComHandle = i; return(OS_OK); } return(OS_ERROR); } GLOBAL LONG os_GetQueueState(OS_HANDLE Caller, OS_HANDLE Handle, ULONG *Used, ULONG *Free) { if (ComTable[Handle].Name[0]) { *Used = ComTable[Handle].UsedSemCB.sm_semaphore_count; *Free = ComTable[Handle].FreeSemCB.sm_semaphore_count; return(OS_OK); } else return(OS_ERROR); } GLOBAL LONG os_GetQueueName(OS_HANDLE Caller, OS_HANDLE ComHandle, char *Name) { if (ComHandle > MaxCommunications) return(OS_ERROR); if (!ComTable[ComHandle].Name[0]) return(OS_ERROR); strcpy(Name, ComTable[ComHandle].Name); return(OS_OK); } GLOBAL LONG os_GetQueueHandle(OS_HANDLE Caller, char *Name, OS_HANDLE *ComHandle) { USHORT i; for (i = 1; i <= MaxCommunications; i++) if (ComTable[i].Name[0] && !strncmp(Name, ComTable[i].Name, RESOURCE_NAMELEN - 1)) { *ComHandle = i; return(OS_OK); } return(OS_ERROR); } GLOBAL LONG os_GetQueueData(OS_HANDLE Caller, OS_HANDLE Handle, USHORT Index, USHORT *Type, ULONG *opc, ULONG *ptr, ULONG *time) { static USHORT entry; static T_QDATA_ELEMENT *p; if (!ComTable[Handle].Name[0]) return(OS_ERROR); if (Index == FIRST_ENTRY) { *Type = ComTable[Handle].current_msg.type; *opc = ComTable[Handle].current_msg.opc; *time = ComTable[Handle].current_msg.time; *ptr = (ULONG) ComTable[Handle].current_msg.ptr; p = ComTable[Handle].pQueueMemory; entry = 0; return(OS_OK); } if (entry >= ComTable[Handle].Entries) return(OS_ERROR); entry++; *Type = p->Data.data16; *ptr = (ULONG) p->Data.ptr; *opc = p->Data.data32; *time = p->Data.time; p++; return(OS_OK); } GLOBAL unsigned char * os_FindSuspendingQueue(unsigned int *tcb) { USHORT i; SM_SUSPEND *susp, *susp2; for (i = 1; i <= MaxCommunications; i++) { if (!ComTable[i].Name[0]) continue; if (susp = ComTable[i].FreeSemCB.sm_suspension_list) { if (susp->sm_suspended_task == (NU_TASK*)tcb) return((unsigned char *) ComTable[i].FreeSemCB.sm_name + 1); susp = (SM_SUSPEND *) susp->sm_suspend_link.cs_next; for (susp2 = susp; ; ) { if (susp2->sm_suspended_task == (NU_TASK*)tcb) return((unsigned char *) ComTable[i].FreeSemCB.sm_name + 1); susp2 = (SM_SUSPEND *) susp2->sm_suspend_link.cs_next; if (susp2 == susp) break; } } if (susp = ComTable[i].UsedSemCB.sm_suspension_list) { if (susp->sm_suspended_task == (NU_TASK*)tcb) return((unsigned char *) ComTable[i].UsedSemCB.sm_name + 1); susp = (SM_SUSPEND *) susp->sm_suspend_link.cs_next; for (susp2 = susp; ; ) { if (susp2->sm_suspended_task == (NU_TASK*)tcb) return((unsigned char *) ComTable[i].UsedSemCB.sm_name + 1); susp2 = (SM_SUSPEND *) susp2->sm_suspend_link.cs_next; if (susp2 == susp) break; } } } return(0); } GLOBAL LONG os_DestroyQueue(OS_HANDLE TaskHandle, OS_HANDLE ComHandle) { STATUS sts; sts = NU_Obtain_Semaphore(&ComSemCB, NU_SUSPEND); if (NU_Delete_Semaphore(&ComTable[ComHandle].FreeSemCB) != NU_SUCCESS) { return_error: if (sts == NU_SUCCESS) NU_Release_Semaphore(&ComSemCB); return(OS_ERROR); } if (NU_Delete_Semaphore(&ComTable[ComHandle].UsedSemCB) != NU_SUCCESS) goto return_error; if (os_DeallocateMemory(TaskHandle, ComTable[ComHandle].QueueData) == OS_ERROR) goto return_error; ComTable[ComHandle].Name[0] = 0; if (sts == NU_SUCCESS) NU_Release_Semaphore(&ComSemCB); return(OS_OK); } static short InitQueueMemory(OS_HANDLE TaskHandle, OS_HANDLE ComHandle, USHORT Entries, OS_HANDLE MemPoolHandle) { T_QDATA_ELEMENT *pElem; OS_QDATA **ptrs; USHORT i; if (os_AllocateMemory(TaskHandle, &ComTable[ComHandle].QueueData, sizeof(T_QDATA_ELEMENT) * Entries + sizeof(OS_QDATA *) * (Entries + 1) * OS_MAX_PRIORITY, 0, MemPoolHandle) == OS_TIMEOUT) return(OS_ERROR); pElem = (T_QDATA_ELEMENT *) ComTable[ComHandle].QueueData; ComTable[ComHandle].pQueueMemory = pElem; ComTable[ComHandle].pFreeElement = pElem; for (i = 0; i < Entries; i++) { if (i < Entries - 1) pElem->pNext = pElem + 1; else pElem->pNext = 0; pElem++; } ptrs = (OS_QDATA **) pElem; for (i = 0; i < OS_MAX_PRIORITY; i++) { ComTable[ComHandle].Queue[i].pStart = ptrs; ComTable[ComHandle].Queue[i].pRead = ptrs; ComTable[ComHandle].Queue[i].pWrite = ptrs; ptrs += Entries + 1; } return(OS_OK); } GLOBAL LONG os_CreateQueue(OS_HANDLE TaskHandle, OS_HANDLE ComHandle, char *Name, USHORT Entries, OS_HANDLE *ActHandle, OS_HANDLE MemPoolHandle) { STATUS sts; OS_HANDLE i; char Buffer[RESOURCE_NAMELEN + 1]; if (os_OpenQueue(TaskHandle, Name, ActHandle) == OS_OK) return(OS_ERROR); if (!Entries) return(OS_ERROR); sts = NU_Obtain_Semaphore(&ComSemCB, NU_SUSPEND); if (!ComHandle) { for (i = 1; i <= MaxCommunications; i++) if (!ComTable[i].Name[0]) goto good_slot; release_sem_error: if (sts == NU_SUCCESS) NU_Release_Semaphore(&ComSemCB); return(OS_ERROR); } else { i = ComHandle; if (i > MaxCommunications) goto release_sem_error; if (ComTable[i].Name[0]) goto release_sem_error; } good_slot: if (InitQueueMemory(TaskHandle, i, Entries, MemPoolHandle) == OS_ERROR) goto release_sem_error; strncpy(Buffer + 1, Name, RESOURCE_NAMELEN - 1); Buffer[RESOURCE_NAMELEN] = 0; Buffer[0] = 'U'; if (NU_Create_Semaphore(&ComTable[i].UsedSemCB, Buffer, 0, NU_PRIORITY) != NU_SUCCESS) goto release_sem_error; Buffer[0] = 'F'; if (NU_Create_Semaphore(&ComTable[i].FreeSemCB, Buffer, Entries, NU_PRIORITY) != NU_SUCCESS) goto release_sem_error; strncpy(ComTable[i].Name, Name, RESOURCE_NAMELEN); ComTable[i].Name[RESOURCE_NAMELEN-1] = 0; *ActHandle = i; ComTable[i].Entries = Entries; ComTable[i].MaxUsed = 0; if (sts == NU_SUCCESS) NU_Release_Semaphore(&ComSemCB); return(OS_OK); } GLOBAL LONG os_ComInit(void) { USHORT i; if (NU_Create_Semaphore(&ComSemCB, "COMSEM", 1, NU_PRIORITY) != NU_SUCCESS) return(OS_ERROR); for (i = 1; i <= MaxCommunications; i++) memset(&ComTable[i], 0, sizeof(T_OS_COM_TABLE_ENTRY)); return(OS_OK); } GLOBAL LONG os_CloseQueue(OS_HANDLE TaskHandle, OS_HANDLE ComHandle) { return(OS_OK); }