X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f39198789b82c1dd545743778f9d2633a2af8bd8..43591e6464af07466ffd87fcb970527ba748253a:/armsrc/fpgaloader.c diff --git a/armsrc/fpgaloader.c b/armsrc/fpgaloader.c index 573aac3a..77223bd0 100644 --- a/armsrc/fpgaloader.c +++ b/armsrc/fpgaloader.c @@ -10,29 +10,29 @@ // mode once it is configured. //----------------------------------------------------------------------------- +#include "fpgaloader.h" + #include #include #include -#include "fpgaloader.h" +#include "apps.h" +#include "fpga.h" #include "proxmark3.h" #include "util.h" #include "string.h" #include "BigBuf.h" #include "zlib.h" -extern void Dbprintf(const char *fmt, ...); - // remember which version of the bitstream we have already downloaded to the FPGA -static int downloaded_bitstream = FPGA_BITSTREAM_ERR; +static int downloaded_bitstream = 0; // this is where the bitstreams are located in memory: -extern uint8_t _binary_fpga_lf_bit_start, _binary_fpga_lf_bit_end; -extern uint8_t _binary_fpga_hf_bit_start, _binary_fpga_hf_bit_end; +extern uint8_t _binary_obj_fpga_all_bit_z_start, _binary_obj_fpga_all_bit_z_end; + static uint8_t *fpga_image_ptr = NULL; +static uint32_t uncompressed_bytes_cnt; -static const uint8_t _bitparse_fixed_header[] = {0x00, 0x09, 0x0f, 0xf0, 0x0f, 0xf0, 0x0f, 0xf0, 0x0f, 0xf0, 0x00, 0x00, 0x01}; -#define FPGA_BITSTREAM_FIXED_HEADER_SIZE sizeof(_bitparse_fixed_header) -#define OUTPUT_BUFFER_LEN 80 +#define OUTPUT_BUFFER_LEN 80 //----------------------------------------------------------------------------- // Set up the Serial Peripheral Interface as master @@ -156,9 +156,7 @@ void FpgaSetupSsc(void) //----------------------------------------------------------------------------- bool FpgaSetupSscDma(uint8_t *buf, int len) { - if (buf == NULL) { - return false; - } + if (buf == NULL) return false; AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS; // Disable DMA Transfer AT91C_BASE_PDC_SSC->PDC_RPR = (uint32_t) buf; // transfer to this memory address @@ -166,78 +164,90 @@ bool FpgaSetupSscDma(uint8_t *buf, int len) AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) buf; // next transfer to same memory address AT91C_BASE_PDC_SSC->PDC_RNCR = len; // ... with same number of bytes AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTEN; // go! - - return true; + + return true; } -static int get_from_fpga_stream(z_streamp compressed_fpga_stream, uint8_t *output_buffer) +//---------------------------------------------------------------------------- +// Uncompress (inflate) the FPGA data. Returns one decompressed byte with +// each call. +//---------------------------------------------------------------------------- +static int get_from_fpga_combined_stream(z_streamp compressed_fpga_stream, uint8_t *output_buffer) { if (fpga_image_ptr == compressed_fpga_stream->next_out) { // need more data compressed_fpga_stream->next_out = output_buffer; compressed_fpga_stream->avail_out = OUTPUT_BUFFER_LEN; fpga_image_ptr = output_buffer; int res = inflate(compressed_fpga_stream, Z_SYNC_FLUSH); - if (res != Z_OK) { + if (res != Z_OK) Dbprintf("inflate returned: %d, %s", res, compressed_fpga_stream->msg); - } - if (res < 0) { + + if (res < 0) return res; - } } + uncompressed_bytes_cnt++; + return *fpga_image_ptr++; } +//---------------------------------------------------------------------------- +// Undo the interleaving of several FPGA config files. FPGA config files +// are combined into one big file: +// 288 bytes from FPGA file 1, followed by 288 bytes from FGPA file 2, etc. +//---------------------------------------------------------------------------- +static int get_from_fpga_stream(int bitstream_version, z_streamp compressed_fpga_stream, uint8_t *output_buffer) +{ + while((uncompressed_bytes_cnt / FPGA_INTERLEAVE_SIZE) % fpga_bitstream_num != (bitstream_version - 1)) { + // skip undesired data belonging to other bitstream_versions + get_from_fpga_combined_stream(compressed_fpga_stream, output_buffer); + } + + return get_from_fpga_combined_stream(compressed_fpga_stream, output_buffer); + +} + static voidpf fpga_inflate_malloc(voidpf opaque, uInt items, uInt size) { - Dbprintf("zlib requested %d bytes", items*size); return BigBuf_malloc(items*size); } static void fpga_inflate_free(voidpf opaque, voidpf address) { - Dbprintf("zlib frees memory"); - BigBuf_free_keep_EM(); + BigBuf_free(); BigBuf_Clear_ext(false); } +//---------------------------------------------------------------------------- +// Initialize decompression of the respective (HF or LF) FPGA stream +//---------------------------------------------------------------------------- static bool reset_fpga_stream(int bitstream_version, z_streamp compressed_fpga_stream, uint8_t *output_buffer) { uint8_t header[FPGA_BITSTREAM_FIXED_HEADER_SIZE]; - uint8_t *fpga_image_start; - uint32_t fpga_image_size; - if (bitstream_version == FPGA_BITSTREAM_LF) { - fpga_image_start = &_binary_fpga_lf_bit_start; - fpga_image_size = (uint32_t)&_binary_fpga_lf_bit_end - (uint32_t)&_binary_fpga_lf_bit_start; - } else if (bitstream_version == FPGA_BITSTREAM_HF) { - fpga_image_start = &_binary_fpga_hf_bit_start; - fpga_image_size = (uint32_t)&_binary_fpga_hf_bit_end - (uint32_t)&_binary_fpga_hf_bit_start; - } else { - return false; - } - + uncompressed_bytes_cnt = 0; + // initialize z_stream structure for inflate: - compressed_fpga_stream->next_in = fpga_image_start; - compressed_fpga_stream->avail_in = fpga_image_size; + compressed_fpga_stream->next_in = &_binary_obj_fpga_all_bit_z_start; + compressed_fpga_stream->avail_in = &_binary_obj_fpga_all_bit_z_end - &_binary_obj_fpga_all_bit_z_start; compressed_fpga_stream->next_out = output_buffer; compressed_fpga_stream->avail_out = OUTPUT_BUFFER_LEN; compressed_fpga_stream->zalloc = &fpga_inflate_malloc; compressed_fpga_stream->zfree = &fpga_inflate_free; - inflateInit2(compressed_fpga_stream, 15); + inflateInit2(compressed_fpga_stream, 0); fpga_image_ptr = output_buffer; for (uint16_t i = 0; i < FPGA_BITSTREAM_FIXED_HEADER_SIZE; i++) { - header[i] = get_from_fpga_stream(compressed_fpga_stream, output_buffer); + header[i] = get_from_fpga_stream(bitstream_version, compressed_fpga_stream, output_buffer); } - // Check for a valid .bit file (starts with _bitparse_fixed_header) - if(memcmp(_bitparse_fixed_header, header, FPGA_BITSTREAM_FIXED_HEADER_SIZE) == 0) { + // Check for a valid .bit file (starts with bitparse_fixed_header) + if(memcmp(bitparse_fixed_header, header, FPGA_BITSTREAM_FIXED_HEADER_SIZE) == 0) { return true; } else { return false; @@ -259,10 +269,10 @@ static void DownloadFPGA_byte(unsigned char w) } // Download the fpga image starting at current stream position with length FpgaImageLen bytes -static void DownloadFPGA(int FpgaImageLen, z_streamp compressed_fpga_stream, uint8_t *output_buffer) +static void DownloadFPGA(int bitstream_version, int FpgaImageLen, z_streamp compressed_fpga_stream, uint8_t *output_buffer) { - Dbprintf("DownloadFPGA(len: %d)", FpgaImageLen); + //Dbprintf("DownloadFPGA(len: %d)", FpgaImageLen); int i=0; @@ -316,7 +326,7 @@ static void DownloadFPGA(int FpgaImageLen, z_streamp compressed_fpga_stream, uin } for(i = 0; i < FpgaImageLen; i++) { - int b = get_from_fpga_stream(compressed_fpga_stream, output_buffer); + int b = get_from_fpga_stream(bitstream_version, compressed_fpga_stream, output_buffer); if (b < 0) { Dbprintf("Error %d during FpgaDownload", b); break; @@ -324,8 +334,6 @@ static void DownloadFPGA(int FpgaImageLen, z_streamp compressed_fpga_stream, uin DownloadFPGA_byte(b); } - Dbprintf("%d bytes loaded into FPGA", i); - // continue to clock FPGA until ready signal goes high i=100000; while ( (i--) && ( !(AT91C_BASE_PIOA->PIO_PDSR & GPIO_FPGA_DONE ) ) ) { @@ -348,13 +356,13 @@ static void DownloadFPGA(int FpgaImageLen, z_streamp compressed_fpga_stream, uin * (big endian), bytes content. Except for section 'e' which has 4 bytes * length. */ -static int bitparse_find_section(char section_name, unsigned int *section_length, z_streamp compressed_fpga_stream, uint8_t *output_buffer) +static int bitparse_find_section(int bitstream_version, char section_name, unsigned int *section_length, z_streamp compressed_fpga_stream, uint8_t *output_buffer) { int result = 0; #define MAX_FPGA_BIT_STREAM_HEADER_SEARCH 100 // maximum number of bytes to search for the requested section uint16_t numbytes = 0; while(numbytes < MAX_FPGA_BIT_STREAM_HEADER_SEARCH) { - char current_name = get_from_fpga_stream(compressed_fpga_stream, output_buffer); + char current_name = get_from_fpga_stream(bitstream_version, compressed_fpga_stream, output_buffer); numbytes++; unsigned int current_length = 0; if(current_name < 'a' || current_name > 'e') { @@ -365,12 +373,12 @@ static int bitparse_find_section(char section_name, unsigned int *section_length switch(current_name) { case 'e': /* Four byte length field */ - current_length += get_from_fpga_stream(compressed_fpga_stream, output_buffer) << 24; - current_length += get_from_fpga_stream(compressed_fpga_stream, output_buffer) << 16; + current_length += get_from_fpga_stream(bitstream_version, compressed_fpga_stream, output_buffer) << 24; + current_length += get_from_fpga_stream(bitstream_version, compressed_fpga_stream, output_buffer) << 16; numbytes += 2; default: /* Fall through, two byte length field */ - current_length += get_from_fpga_stream(compressed_fpga_stream, output_buffer) << 8; - current_length += get_from_fpga_stream(compressed_fpga_stream, output_buffer) << 0; + current_length += get_from_fpga_stream(bitstream_version, compressed_fpga_stream, output_buffer) << 8; + current_length += get_from_fpga_stream(bitstream_version, compressed_fpga_stream, output_buffer) << 0; numbytes += 2; } @@ -387,7 +395,7 @@ static int bitparse_find_section(char section_name, unsigned int *section_length } for (uint16_t i = 0; i < current_length && numbytes < MAX_FPGA_BIT_STREAM_HEADER_SEARCH; i++) { - get_from_fpga_stream(compressed_fpga_stream, output_buffer); + get_from_fpga_stream(bitstream_version, compressed_fpga_stream, output_buffer); numbytes++; } } @@ -396,94 +404,40 @@ static int bitparse_find_section(char section_name, unsigned int *section_length } -//----------------------------------------------------------------------------- -// Find out which FPGA image format is stored in flash, then call DownloadFPGA -// with the right parameters to download the image -//----------------------------------------------------------------------------- +//---------------------------------------------------------------------------- +// Check which FPGA image is currently loaded (if any). If necessary +// decompress and load the correct (HF or LF) image to the FPGA +//---------------------------------------------------------------------------- void FpgaDownloadAndGo(int bitstream_version) { z_stream compressed_fpga_stream; - uint8_t output_buffer[OUTPUT_BUFFER_LEN]; + uint8_t output_buffer[OUTPUT_BUFFER_LEN] = {0x00}; // check whether or not the bitstream is already loaded if (downloaded_bitstream == bitstream_version) return; + // make sure that we have enough memory to decompress + BigBuf_free(); BigBuf_Clear_ext(false); + if (!reset_fpga_stream(bitstream_version, &compressed_fpga_stream, output_buffer)) { return; } unsigned int bitstream_length; - if(bitparse_find_section('e', &bitstream_length, &compressed_fpga_stream, output_buffer)) { - DownloadFPGA(bitstream_length, &compressed_fpga_stream, output_buffer); + if (bitparse_find_section(bitstream_version, 'e', &bitstream_length, &compressed_fpga_stream, output_buffer)) { + DownloadFPGA(bitstream_version, bitstream_length, &compressed_fpga_stream, output_buffer); downloaded_bitstream = bitstream_version; } inflateEnd(&compressed_fpga_stream); - -} - - -void FpgaGatherVersion(int bitstream_version, char *dst, int len) -{ - unsigned int fpga_info_len; - char tempstr[40]; - z_stream compressed_fpga_stream; - uint8_t output_buffer[OUTPUT_BUFFER_LEN]; - dst[0] = '\0'; - - if (!reset_fpga_stream(bitstream_version, &compressed_fpga_stream, output_buffer)) { - return; - } - - if(bitparse_find_section('a', &fpga_info_len, &compressed_fpga_stream, output_buffer)) { - for (uint16_t i = 0; i < fpga_info_len; i++) { - char c = (char)get_from_fpga_stream(&compressed_fpga_stream, output_buffer); - if (i < sizeof(tempstr)) { - tempstr[i] = c; - } - } - if (!memcmp("fpga_lf", tempstr, 7)) - strncat(dst, "LF ", len-1); - else if (!memcmp("fpga_hf", tempstr, 7)) - strncat(dst, "HF ", len-1); - } - strncat(dst, "FPGA image built", len-1); - if(bitparse_find_section('b', &fpga_info_len, &compressed_fpga_stream, output_buffer)) { - strncat(dst, " for ", len-1); - for (uint16_t i = 0; i < fpga_info_len; i++) { - char c = (char)get_from_fpga_stream(&compressed_fpga_stream, output_buffer); - if (i < sizeof(tempstr)) { - tempstr[i] = c; - } - } - strncat(dst, tempstr, len-1); - } - if(bitparse_find_section('c', &fpga_info_len, &compressed_fpga_stream, output_buffer)) { - strncat(dst, " on ", len-1); - for (uint16_t i = 0; i < fpga_info_len; i++) { - char c = (char)get_from_fpga_stream(&compressed_fpga_stream, output_buffer); - if (i < sizeof(tempstr)) { - tempstr[i] = c; - } - } - strncat(dst, tempstr, len-1); - } - if(bitparse_find_section('d', &fpga_info_len, &compressed_fpga_stream, output_buffer)) { - strncat(dst, " at ", len-1); - for (uint16_t i = 0; i < fpga_info_len; i++) { - char c = (char)get_from_fpga_stream(&compressed_fpga_stream, output_buffer); - if (i < sizeof(tempstr)) { - tempstr[i] = c; - } - } - strncat(dst, tempstr, len-1); - } + // turn off antenna + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - inflateEnd(&compressed_fpga_stream); - -} + // free eventually allocated BigBuf memory + BigBuf_free(); BigBuf_Clear_ext(false); +} //----------------------------------------------------------------------------- @@ -533,3 +487,12 @@ void SetAdcMuxFor(uint32_t whichGpio) HIGH(whichGpio); } + +void Fpga_print_status(void) { + Dbprintf("Currently loaded FPGA image:"); + Dbprintf(" %s", fpga_version_information[downloaded_bitstream-1]); +} + +int FpgaGetCurrent() { + return downloaded_bitstream; +}