code clean up

[proxmark3-svn] / armsrc / fpgaloader.c

diff --git a/armsrc/fpgaloader.c b/armsrc/fpgaloader.c
index f85065507e69c7de0463ee7e65fe27fe7e45be52..64ddc608dcd6925e9ced586eafdc1b394e1cfd37 100644 (file)
--- a/armsrc/fpgaloader.c
+++ b/armsrc/fpgaloader.c
@@ -158,9 +158,8 @@ void FpgaSetupSsc(void)
 //-----------------------------------------------------------------------------
 bool FpgaSetupSscDma(uint8_t *buf, int len)
 {
-       if (buf == NULL) {
+       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
@@ -184,15 +183,15 @@ static int get_from_fpga_combined_stream(z_streamp compressed_fpga_stream, uint8
                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++;
+       ++uncompressed_bytes_cnt;
        
        return *fpga_image_ptr++;
 }
@@ -209,8 +208,7 @@ static int get_from_fpga_stream(int bitstream_version, z_streamp compressed_fpga
                get_from_fpga_combined_stream(compressed_fpga_stream, output_buffer);
        }
 
-       return get_from_fpga_combined_stream(compressed_fpga_stream, output_buffer);
-       
+       return get_from_fpga_combined_stream(compressed_fpga_stream, output_buffer);    
 }
 
 
@@ -222,7 +220,8 @@ static voidpf fpga_inflate_malloc(voidpf opaque, uInt items, uInt size)
 
 static void fpga_inflate_free(voidpf opaque, voidpf address)
 {
-       BigBuf_free();
+       // free eventually allocated BigBuf memory
+       BigBuf_free(); BigBuf_Clear_ext(false);
 }
 
 
@@ -247,16 +246,14 @@ static bool reset_fpga_stream(int bitstream_version, z_streamp compressed_fpga_s
 
        fpga_image_ptr = output_buffer;
 
-       for (uint16_t i = 0; i < FPGA_BITSTREAM_FIXED_HEADER_SIZE; i++) {
+       for (uint16_t i = 0; i < FPGA_BITSTREAM_FIXED_HEADER_SIZE; i++)
                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) {
+       if(memcmp(_bitparse_fixed_header, header, FPGA_BITSTREAM_FIXED_HEADER_SIZE) == 0)
                return true;
-       } else {
-               return false;
-       }
+
+       return false;
 }
 
 
@@ -276,9 +273,6 @@ static void DownloadFPGA_byte(unsigned char w)
 // Download the fpga image starting at current stream position with length FpgaImageLen bytes
 static void DownloadFPGA(int bitstream_version, int FpgaImageLen, z_streamp compressed_fpga_stream, uint8_t *output_buffer)
 {
-
-       Dbprintf("DownloadFPGA(len: %d)", FpgaImageLen);
-       
        int i=0;
 
        AT91C_BASE_PIOA->PIO_OER = GPIO_FPGA_ON;
@@ -416,14 +410,14 @@ static int bitparse_find_section(int bitstream_version, char section_name, unsig
 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_free(); BigBuf_Clear_ext(false);
        
        if (!reset_fpga_stream(bitstream_version, &compressed_fpga_stream, output_buffer)) {
                return;
@@ -437,7 +431,8 @@ void FpgaDownloadAndGo(int bitstream_version)
 
        inflateEnd(&compressed_fpga_stream);
        
-       BigBuf_free();
+       // free eventually allocated BigBuf memory
+       BigBuf_free(); BigBuf_Clear_ext(false);
 }      
 
 
@@ -450,18 +445,17 @@ void FpgaDownloadAndGo(int bitstream_version)
 void FpgaGatherVersion(int bitstream_version, char *dst, int len)
 {
        unsigned int fpga_info_len;
-       char tempstr[40];
+       char tempstr[40] = {0x00};
        z_stream compressed_fpga_stream;
-       uint8_t output_buffer[OUTPUT_BUFFER_LEN];
+       uint8_t output_buffer[OUTPUT_BUFFER_LEN] = {0x00};
        
        dst[0] = '\0';
 
        // ensure that we can allocate enough memory for decompression:
-       BigBuf_free();
+       BigBuf_free(); BigBuf_Clear_ext(false);
 
-       if (!reset_fpga_stream(bitstream_version, &compressed_fpga_stream, output_buffer)) {
+       if (!reset_fpga_stream(bitstream_version, &compressed_fpga_stream, output_buffer))
                return;
-       }
 
        if(bitparse_find_section(bitstream_version, 'a', &fpga_info_len, &compressed_fpga_stream, output_buffer)) {
                for (uint16_t i = 0; i < fpga_info_len; i++) {
@@ -560,3 +554,11 @@ void SetAdcMuxFor(uint32_t whichGpio)
 
        HIGH(whichGpio);
 }
+
+void Fpga_print_status(void)
+{
+       Dbprintf("Fgpa");
+       if(downloaded_bitstream == FPGA_BITSTREAM_HF) Dbprintf("  mode.............HF");
+       else if(downloaded_bitstream == FPGA_BITSTREAM_LF) Dbprintf("  mode.............LF");
+       else Dbprintf("  mode.............%d", downloaded_bitstream);
+}