FreeCalypso > hg > fc-magnetite
view src/gpf2/osl/os_isr.c @ 695:530f71d65c20
uartfax.c: pull from Tourmaline (GTM900 RI output)
In addition to the primary intent of bringing in GTM900 RI output support,
pulling uartfax.c wholesale from Tourmaline also changes the initial_time
argument in the two NU_Create_Timer() calls from 0 to 1. This change
is required for the new version of Nucleus used in Tourmaline and Selenite
(and apparently also used by TI in LoCosto), and it is harmless (no effect)
for the original TCS211 version of Nucleus used in Magnetite.
The new philosophical model being adopted is that Tourmaline is our new
development head firmware, whereas Magnetite will now be maintained
similarly to how Linux maintainers treat stable kernels: changes will be
backported from Tourmaline if they are deemed appropriate for stable
modem firmware.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 24 Oct 2020 17:33:10 +0000 |
parents | 10c059efb3d1 |
children |
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/* * This C module is a reconstruction based on the disassembly of * os_isr.obj in frame_na7_db_fl.lib from the Leonardo package. */ /* set of included headers from COFF symtab: */ #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 T_OS_OSISR_TABLE_ENTRY OSISRTable[]; extern OS_HANDLE os_int_pool_handle; GLOBAL LONG os_isr_init(void) { USHORT i; for (i = 1; i <= MaxOSISRs; i++) OSISRTable[i].name[0] = 0; return(OS_OK); } GLOBAL LONG os_SetInterruptState(OS_INT_STATE new_state, OS_INT_STATE *old_state) { INT state; if (new_state) state = NU_ENABLE_INTERRUPTS; else state = NU_DISABLE_INTERRUPTS; state = NU_Control_Interrupts(state); if (state & 0xFF) *old_state = 0; else *old_state = 1; return(OS_OK); } GLOBAL LONG os_EnableInterrupts(OS_INT_STATE *old_state) { INT state; state = NU_Control_Interrupts(NU_ENABLE_INTERRUPTS); if (state & 0xFF) *old_state = 0; else *old_state = 1; return(OS_OK); } GLOBAL LONG os_DisableInterrupts(OS_INT_STATE *old_state) { INT state; state = NU_Control_Interrupts(NU_DISABLE_INTERRUPTS); if (state & 0xFF) *old_state = 0; else *old_state = 1; return(OS_OK); } GLOBAL LONG os_DeleteOSISR(OS_HANDLE hisr_handle) { OS_INT_STATE old_state, state; if (hisr_handle <= 0 || hisr_handle > MaxOSISRs) return(OS_ERROR); if (OSISRTable[hisr_handle].hisr_cb.tc_activation_count) return(OS_ERROR); os_DisableInterrupts(&old_state); if (os_DeallocateMemory(os_MyHandle(), OSISRTable[hisr_handle].stack) == OS_ERROR) { error: os_SetInterruptState(old_state, &state); return(OS_ERROR); } if (NU_Delete_HISR(&OSISRTable[hisr_handle].hisr_cb) != NU_SUCCESS) goto error; OSISRTable[hisr_handle].name[0] = 0; os_SetInterruptState(old_state, &state); return(OS_OK); } GLOBAL LONG os_CreateOSISR(char *name, void (*OSISR_entry)(void), int stacksize, int priority, int flags, OS_HANDLE *hisr_handle) { OS_HANDLE handle; T_VOID_STRUCT *hisr_stack; OS_INT_STATE old_state, state; if (priority < 0 || priority > 2) return(OS_ERROR); priority = 2 - priority; os_DisableInterrupts(&old_state); for (handle = 1; handle <= MaxOSISRs; handle++) if (!strncmp(OSISRTable[handle].name, name, RESOURCE_NAMELEN - 1)) { error: os_SetInterruptState(old_state, &state); return(OS_ERROR); } for (handle = 1; handle <= MaxOSISRs; handle++) if (!OSISRTable[handle].name[0]) break; if (handle > MaxOSISRs) goto error; if (os_AllocateMemory(os_MyHandle(), &hisr_stack, stacksize, 0xFFFFFFFF, os_int_pool_handle) == OS_ERROR) goto error; memset((u_char *)hisr_stack, INITIAL_STACK_VALUE, stacksize); *hisr_stack = GUARD_PATTERN; if (NU_Create_HISR(&OSISRTable[handle].hisr_cb, name, OSISR_entry, priority, (VOID *)hisr_stack, stacksize) != NU_SUCCESS) goto error; strncpy(OSISRTable[handle].name, name, RESOURCE_NAMELEN); OSISRTable[handle].name[RESOURCE_NAMELEN-1] = 0; OSISRTable[handle].stack = hisr_stack; *hisr_handle = handle; os_SetInterruptState(old_state, &state); return(OS_OK); } GLOBAL LONG os_ActivateOSISR(OS_HANDLE hisr_handle) { if (hisr_handle <= 0 || hisr_handle > MaxOSISRs) return(OS_ERROR); if (NU_Activate_HISR(&OSISRTable[hisr_handle].hisr_cb) == NU_SUCCESS) return(OS_OK); else return(OS_ERROR); }