FreeCalypso > hg > fc-magnetite
view src/cs/services/dar/dar_task.c @ 575:0198ac1e1a4f
cfile_symlink for GPF: a more robust approach
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 24 Jan 2019 23:43:00 +0000 |
parents | 945cf7f506b2 |
children |
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/****************************************************************************/ /* */ /* File Name: dar_task.c */ /* */ /* Purpose: This function is the main function. It contains the dar_core */ /* which waits for messages or function calls. */ /* */ /* */ /* Version 0.1 */ /* */ /* Date Modification */ /* ------------------------------------ */ /* 16 October 2001 Create */ /* */ /* Author Stephanie Gerthoux */ /* */ /* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved*/ /****************************************************************************/ #include "rv/rv_defined_swe.h" #ifdef RVM_DAR_SWE #ifndef _WINDOWS #include "config/swconfig.cfg" #include "config/sys.cfg" #include "config/chipset.cfg" #endif #include <string.h> #include "rvm/rvm_gen.h" #include "rvm/rvm_use_id_list.h" #include "dar/dar_api.h" #include "dar/dar_macro_i.h" #include "dar/dar_handle_message.h" #include "dar/dar_structs_i.h" #include "dar/dar_error_hdlr_i.h" #include "dar/dar_const_i.h" #include "ffs/ffs_api.h" /* Variables definitions */ T_DAR_RECOVERY_STATUS status=0; /**** Global variables ****/ /* Define a pointer to the Global Environment Control block */ extern T_DAR_ENV_CTRL_BLK *dar_gbl_var_p; /* Write buffer*/ extern char dar_write_buffer[DAR_MAX_BUFFER_SIZE]; /* index used in the circular buffer*/ extern UINT16 dar_current_index; /* DAR previous status : to get the status of the last exception */ extern UINT8 dar_previous_exception; /* Ram buffer that contains the Debug Unit register */ extern UINT32 debug_RAM[DEBUG_UNIT_WORD_SIZE]; /* X_dump buffer defined in the command file */ /* This buffer contains the general register, the PC, the CPSR....*/ #ifndef _WINDOWS extern INT32 xdump_buffer; #endif /********************************************************************************/ /* Function dar_core */ /* */ /* Description Core of the dar task, which scans the dar mailbox and */ /* waits for messages. When a message arrives, it sends it to */ /* proper functions */ /* */ /* */ /********************************************************************************/ T_RV_RET dar_core(void) { /* Declare local variables */ /**** Structs ****/ /* File descriptor type */ T_FFS_FD ffs_fd; /* Variables */ T_RV_RET error_status = RV_OK; T_RV_HDR *msg_p = NULL; UINT16 received_event = 0x0000; char dar_ffs[20]; char dar_dir_ffs[20]; char dar_subdir_ffs[20]; BOOL dar_ffs_error = FALSE; #ifndef _WINDOWS /* Define the Link register and the CPSR */ INT32 *link_register_p = &(xdump_buffer) + 14; INT32 *dar_spsr_p = &(xdump_buffer) + 16; UINT16 i; #endif /* Dar_ffs file name */ strcpy(dar_dir_ffs,"/var"); strcpy(dar_subdir_ffs,"/var/dbg"); #ifndef _WINDOWS strcpy(dar_ffs,"/var/dbg/dar"); #else strcpy(dar_ffs,"\var\dbg\dar"); #endif DAR_SEND_TRACE("DAR_TASK started",RV_TRACE_LEVEL_DEBUG_HIGH); /*---------------------------------*/ /* FFS */ /*---------------------------------*/ /**** create the dar ffs directories ****/ if ((ffs_mkdir(dar_dir_ffs) != EFFS_OK) && (ffs_mkdir(dar_dir_ffs) != EFFS_EXISTS)) { DAR_SEND_TRACE("DAR entity can't create the '/var' folder into the flash",RV_TRACE_LEVEL_ERROR); } if ((ffs_mkdir(dar_subdir_ffs) != EFFS_OK) && (ffs_mkdir(dar_subdir_ffs) != EFFS_EXISTS)) { DAR_SEND_TRACE("DAR entity can't create the '/var/dbg' folder into the flash",RV_TRACE_LEVEL_ERROR); } /**** create the ffs file ****/ ffs_fd = ffs_open(dar_ffs, FFS_O_CREATE | FFS_O_WRONLY | FFS_O_TRUNC | FFS_O_APPEND); if (ffs_fd < 0) { DAR_SEND_TRACE("DAR entity has received wrong file name or the flash is not formatted",RV_TRACE_LEVEL_WARNING); dar_ffs_error = TRUE; } #ifndef _WINDOWS /**** Save the RAM buffer into the FFS ****/ /* save the buffer in 2 parts in order to have the information in chronological order */ /* save the oldest information : from dar_current_index to the end of the buffer*/ if ((ffs_write (ffs_fd, (void *)(&dar_write_buffer + dar_current_index), (DAR_MAX_BUFFER_SIZE - dar_current_index))) < 0 & (dar_ffs_error == FALSE)) { DAR_SEND_TRACE("DAR entity can't saved the file in flash",RV_TRACE_LEVEL_WARNING); } /* save the rest of information: from the beginning of the buffer to dar_current_index */ if ((ffs_write (ffs_fd, (void *)(&dar_write_buffer), (dar_current_index))) < 0 & (dar_ffs_error == FALSE)) { DAR_SEND_TRACE("DAR entity can't saved the file in flash",RV_TRACE_LEVEL_WARNING); } /* Erase the dar_write_buffer */ for (i=0;i<DAR_MAX_BUFFER_SIZE; i++) { dar_write_buffer[i] = 0; } /**** Save the X_dump_buffer into the Flash. ****/ /* This buffer is defined in the command file */ /* And the size of this buffer is defined in the gsm_cs_amd4_lj3_test.cmd */ /* its size is 38*32 bits = 38*4 bytes = 152 bytes */ if ((ffs_write (ffs_fd, (void *)(&xdump_buffer), (DAR_X_DUMP_BUFFER_SIZE))) < 0 & (dar_ffs_error == FALSE)) { DAR_SEND_TRACE("DAR entity can't saved the X_dump_buffer in flash",RV_TRACE_LEVEL_WARNING); } /**** Save the Debug Unit Register into the Flash if necessary (Abort or prefetch)****/ /* A Prefetch abort exception or a data abort exception is generated */ #if ((CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 10) || (CHIPSET == 11)) if ((dar_previous_exception == DAR_EXCEPTION_PREFETCH_ABORT) || (dar_previous_exception == DAR_EXCEPTION_DATA_ABORT)) { /* Save the Debug Unit into the Flash */ if ((ffs_write (ffs_fd, (void *) &debug_RAM, (4*DEBUG_UNIT_WORD_SIZE))) < 0 & (dar_ffs_error == FALSE)) { DAR_SEND_TRACE("DAR entity can't saved the DEBUG UNIT in flash",RV_TRACE_LEVEL_WARNING); } } #endif #else /* save the buffer in 2 parts in order to have the information in chronological order */ /* save the oldest information : from dar_current_index to the end of the buffer*/ if ((ffs_write (ffs_fd, (&dar_write_buffer + dar_current_index), (DAR_MAX_BUFFER_SIZE - dar_current_index))) != EFFS_OK) { DAR_SEND_TRACE("DAR entity can't saved the file in flash",RV_TRACE_LEVEL_WARNING); } /* save the rest of information: from the beginning of the buffer to dar_current_index */ if ((ffs_write (ffs_fd, (&dar_write_buffer), (dar_current_index))) != EFFS_OK) { DAR_SEND_TRACE("DAR entity can't saved the file in flash",RV_TRACE_LEVEL_WARNING); } /* The X_dump_buffer and the Debug Unit can't be saved on the PC */ #endif /* Close the ffs file*/ #ifndef _WINDOWS if ( ffs_close(ffs_fd) != EFFS_OK & (dar_ffs_error == FALSE)) { DAR_SEND_TRACE("DAR entity has not closed the file",RV_TRACE_LEVEL_WARNING); } #else if ( ffs_close(ffs_fd) != EFFS_OK ) { dar_error_trace(DAR_ENTITY_FILE_NO_CLOSE); } #endif #ifndef _WINDOWS /**** Save the LR and the SPSR when an exception has occured ****/ if ((dar_previous_exception == DAR_EXCEPTION_PREFETCH_ABORT)|| (dar_previous_exception == DAR_EXCEPTION_DATA_ABORT) || (dar_previous_exception == DAR_EXCEPTION_UNDEFINED) || (dar_previous_exception == DAR_EXCEPTION_SWI) || (dar_previous_exception == DAR_EXCEPTION_RESERVED)) { /* Displays the Link register saved on exception */ DAR_SEND_TRACE_PARAM("Link register = ", *link_register_p,RV_TRACE_LEVEL_DEBUG_HIGH); /* Displays the User mode CPSR saved on exception */ DAR_SEND_TRACE_PARAM("User mode SPSR before the exception=", *dar_spsr_p,RV_TRACE_LEVEL_DEBUG_HIGH); } /* Displays the status of the last reset of the system */ dar_recovery_get_status(&status); #endif /* ------------------------------------------- */ /* loop to process messages */ /* ------------------------------------------- */ while (error_status == RV_OK) { /* Wait for all events. */ received_event = rvf_wait(DAR_ALL_EVENT_FLAGS, DAR_NOT_TIME_OUT); if (received_event & DAR_TASK_MBOX_EVT_MASK) { /* Read the message in the Dar mailbox and handle it. */ msg_p = (T_RV_HDR *) rvf_read_mbox(DAR_MBOX); error_status = dar_handle_msg(msg_p); } } /* If one of the occured events is unexpected (due to an unassigned */ /* mailbox), then report an internal error. */ if (received_event & ~(DAR_TASK_MBOX_EVT_MASK )) { DAR_SEND_TRACE(" DAR ERROR (env). One of the occured events is unexpected ", RV_TRACE_LEVEL_ERROR); error_status = RV_NOT_SUPPORTED; } /* If a memory error happened .. */ if (error_status == RV_MEMORY_ERR) { dar_gbl_var_p->callBackFctError("DAR", RVM_MEMORY_ERR, 0, " Memory Error : the DAR primitive memory bank is RED "); } return RV_OK; } /* dar_core */ #endif /* #ifdef RVM_DAR_SWE */