/* This FileX test concentrates on the media with hidden sectors. */ #include "fx_api.h" #include "fx_ram_driver_test.h" #define DEMO_STACK_SIZE 4096 #define CACHE_SIZE 128*128 #define HIDDEN_SECTORS 8 #define SECTOR_SIZE 512 /* Define the ThreadX and FileX object control blocks... */ #ifndef FX_STANDALONE_ENABLE static TX_THREAD ftest_0; #endif static FX_MEDIA ram_disk; static FX_FILE my_file; /* Define the counters used in the test application... */ #ifndef FX_STANDALONE_ENABLE static UCHAR *ram_disk_memory; static UCHAR *cache_buffer; #else static UCHAR cache_buffer[CACHE_SIZE]; #endif /* Define thread prototypes. */ void filex_media_hidden_sectors_test_application_define(void *first_unused_memory); static void ftest_0_entry(ULONG thread_input); VOID _fx_ram_driver(FX_MEDIA *media_ptr); void test_control_return(UINT status); static VOID hidden_sectors_driver(FX_MEDIA *media_ptr); /* Define what the initial system looks like. */ #ifdef CTEST void test_application_define(void *first_unused_memory) #else void filex_media_hidden_sectors_test_application_define(void *first_unused_memory) #endif { #ifndef FX_STANDALONE_ENABLE UCHAR *pointer; /* Setup the working pointer. */ pointer = (UCHAR *) first_unused_memory; /* Create the main thread. */ tx_thread_create(&ftest_0, "thread 0", ftest_0_entry, 0, pointer, DEMO_STACK_SIZE, 4, 4, TX_NO_TIME_SLICE, TX_AUTO_START); pointer = pointer + DEMO_STACK_SIZE; /* Setup memory for the RAM disk and the sector cache. */ cache_buffer = pointer; pointer = pointer + CACHE_SIZE; ram_disk_memory = pointer; #endif /* Initialize the FileX system. */ fx_system_initialize(); #ifdef FX_STANDALONE_ENABLE ftest_0_entry(0); #endif } /* Define the test threads. */ static void ftest_0_entry(ULONG thread_input) { UINT status; FX_PARAMETER_NOT_USED(thread_input); /* Print out some test information banners. */ printf("FileX Test: Media Hidden Sectors Test.............................."); /* Format the media. This needs to be done before opening it! */ status = fx_media_format(&ram_disk, hidden_sectors_driver, // Driver entry ram_disk_memory, // RAM disk memory pointer cache_buffer, // Media buffer pointer CACHE_SIZE, // Media buffer size "MY_RAM_DISK", // Volume Name 1, // Number of FATs 32, // Directory Entries HIDDEN_SECTORS, // Hidden sectors 256, // Total sectors SECTOR_SIZE, // Sector size 1, // Sectors per cluster 1, // Heads 1); // Sectors per track /* Determine if the format had an error. */ if (status) { printf("ERROR!\n"); test_control_return(2); } memset(&ram_disk, 0, sizeof(ram_disk)); /* Open the ram_disk. */ status = fx_media_open(&ram_disk, "RAM DISK", hidden_sectors_driver, ram_disk_memory, cache_buffer, CACHE_SIZE); /* Check the status. */ if (status != FX_SUCCESS) { /* Error, return error code. */ printf("ERROR!\n"); test_control_return(3); } /* Create a file called TEST.TXT in the root directory. */ status = fx_file_create(&ram_disk, "TEST.TXT"); /* Check the create status. */ if (status != FX_SUCCESS) { printf("ERROR!\n"); test_control_return(4); } /* Close the media. */ status = fx_media_close(&ram_disk); /* Check the file open status. */ if (status != FX_SUCCESS) { printf("ERROR!\n"); test_control_return(5); } memset(&ram_disk, 0, sizeof(ram_disk)); /* Open the ram_disk. */ status = fx_media_open(&ram_disk, "RAM DISK", hidden_sectors_driver, ram_disk_memory, cache_buffer, CACHE_SIZE); /* Check the status. */ if (status != FX_SUCCESS) { /* Error, return error code. */ printf("ERROR!\n"); test_control_return(6); } /* Open the test file. */ status = fx_file_open(&ram_disk, &my_file, "TEST.TXT", FX_OPEN_FOR_WRITE); /* Check the file open status. */ if (status != FX_SUCCESS) { printf("ERROR!\n"); test_control_return(7); } /* Close the file. */ status = fx_file_close(&my_file); /* Check the file open status. */ if (status != FX_SUCCESS) { printf("ERROR!\n"); test_control_return(8); } /* Close the media. */ status = fx_media_close(&ram_disk); /* Check the file open status. */ if (status != FX_SUCCESS) { printf("ERROR!\n"); test_control_return(9); } /* Determine if the test was successful. */ if (status != FX_SUCCESS) { printf("ERROR!\n"); test_control_return(10); } else { printf("SUCCESS!\n"); test_control_return(0); } } static VOID hidden_sectors_driver(FX_MEDIA *media_ptr) { UCHAR *source_buffer; UCHAR *destination_buffer; UINT bytes_per_sector; if (media_ptr -> fx_media_driver_request == FX_DRIVER_BOOT_READ) { /* Read the boot record and return to the caller. */ /* Calculate the RAM disk boot sector offset, which is at the very beginning of the RAM disk. Note the RAM disk memory is pointed to by the fx_media_driver_info pointer, which is supplied by the application in the call to fx_media_open. */ source_buffer = (UCHAR *) media_ptr -> fx_media_driver_info; source_buffer += SECTOR_SIZE * HIDDEN_SECTORS; /* For RAM driver, determine if the boot record is valid. */ if ((source_buffer[0] != (UCHAR) 0xEB) || ((source_buffer[1] != (UCHAR) 0x34) && (source_buffer[1] != (UCHAR) 0x76)) || (source_buffer[2] != (UCHAR) 0x90)) { /* Invalid boot record, return an error! */ media_ptr -> fx_media_driver_status = FX_MEDIA_INVALID; return; } /* For RAM disk only, pickup the bytes per sector. */ bytes_per_sector = _fx_utility_16_unsigned_read(&source_buffer[FX_BYTES_SECTOR]); /* Ensure this is less than the destination. */ /* Copy the RAM boot sector into the destination. */ _fx_utility_memory_copy(source_buffer, media_ptr -> fx_media_driver_buffer, bytes_per_sector); /* Successful driver request. */ media_ptr -> fx_media_driver_status = FX_SUCCESS; } else if (media_ptr -> fx_media_driver_request == FX_DRIVER_BOOT_WRITE) { /* Write the boot record and return to the caller. */ /* Calculate the RAM disk boot sector offset, which is at the very beginning of the RAM disk. Note the RAM disk memory is pointed to by the fx_media_driver_info pointer, which is supplied by the application in the call to fx_media_open. */ destination_buffer = (UCHAR *) media_ptr -> fx_media_driver_info; destination_buffer += SECTOR_SIZE * HIDDEN_SECTORS; /* Copy the RAM boot sector into the destination. */ _fx_utility_memory_copy(media_ptr -> fx_media_driver_buffer, destination_buffer, media_ptr -> fx_media_bytes_per_sector); /* Successful driver request. */ media_ptr -> fx_media_driver_status = FX_SUCCESS; } else { if ((media_ptr -> fx_media_driver_request == FX_DRIVER_WRITE) || (media_ptr -> fx_media_driver_request == FX_DRIVER_READ)) { if (media_ptr -> fx_media_hidden_sectors == 0) { media_ptr -> fx_media_driver_status = FX_IO_ERROR; return; } } _fx_ram_driver(media_ptr); } }