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feature: Make the FPGA bitstreams working with SKIP_* define.

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Now, you can enable at least two of your favorite technologies (such as LF and HF 14443A) attached a standalone mode and still have spare ROM space for other functionalities on a Proxmark3 Easy with a 256KiB ROM.
This commit is contained in:
douniwan5788 2024-08-26 02:34:14 +08:00
commit 413a17a7a6
5 changed files with 74 additions and 14 deletions
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20
armsrc/fpgaloader.c
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@ -221,14 +221,28 @@ static int get_from_fpga_combined_stream(lz4_streamp_t compressed_fpga_stream, u
return *fpga_image_ptr++;
}
static int bitstream_version_to_index(FPGA_config bitstream_version) {
static int8_t bitstream_index_map[FPGA_BITSTREAM_MAX] = {-1};
// Initialize
if (bitstream_index_map[0] == -1){
for (size_t i = 0; i < g_fpga_bitstream_num; i++) {
FPGA_VERSION_INFORMATION info = g_fpga_version_information[i];
bitstream_index_map[info.target_config] = i;
}
}
return bitstream_index_map[bitstream_version];
}
//----------------------------------------------------------------------------
// 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, lz4_streamp_t compressed_fpga_stream, uint8_t *output_buffer) {
while ((uncompressed_bytes_cnt / FPGA_INTERLEAVE_SIZE) % g_fpga_bitstream_num != (bitstream_version - 1)) {
// skip undesired data belonging to other bitstream_versions
int bitstream_index = bitstream_version_to_index(bitstream_version);
while ((uncompressed_bytes_cnt / FPGA_INTERLEAVE_SIZE) % g_fpga_bitstream_num != bitstream_index) {
get_from_fpga_combined_stream(compressed_fpga_stream, output_buffer);
}
@ -603,7 +617,7 @@ void SetAdcMuxFor(uint32_t whichGpio) {
void Fpga_print_status(void) {
DbpString(_CYAN_("Current FPGA image"));
Dbprintf(" mode....................%s", g_fpga_version_information[downloaded_bitstream - 1]);
Dbprintf(" mode.................... %s", g_fpga_version_information[downloaded_bitstream - 1]);
}
int FpgaGetCurrent(void) {