Add: 'hf plot' - implement function from offical repo (piwi)

armsrc/fpgaloader.c

@@ -400,8 +400,10 @@ static int bitparse_find_section(int bitstream_version, char section_name, uint3
 void FpgaDownloadAndGo(int bitstream_version) {
 
     // check whether or not the bitstream is already loaded
-    if (downloaded_bitstream == bitstream_version)
+    if (downloaded_bitstream == bitstream_version) {
+        FpgaEnableTracing();
         return;
+    }
 
     // Send waiting time extension request as this will take a while
     send_wtx(1500);
@@ -437,6 +439,8 @@ void FpgaDownloadAndGo(int bitstream_version) {
 // Send a 16 bit command/data pair to the FPGA.
 // The bit format is:  C3 C2 C1 C0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
 // where C is the 4 bit command and D is the 12 bit data
+// 
+// @params cmd and v  gets or over eachother.  Take careful note of overlapping bits.
 //-----------------------------------------------------------------------------
 void FpgaSendCommand(uint16_t cmd, uint16_t v) {
     SetupSpi(SPI_FPGA_MODE);
@@ -449,10 +453,21 @@ void FpgaSendCommand(uint16_t cmd, uint16_t v) {
 // vs. clone vs. etc.). This is now a special case of FpgaSendCommand() to
 // avoid changing this function's occurence everywhere in the source code.
 //-----------------------------------------------------------------------------
-void FpgaWriteConfWord(uint8_t v) {
+void FpgaWriteConfWord(uint16_t v) {
     FpgaSendCommand(FPGA_CMD_SET_CONFREG, v);
 }
 
+//-----------------------------------------------------------------------------
+// enable/disable FPGA internal tracing
+//-----------------------------------------------------------------------------
+void FpgaEnableTracing(void) {
+	FpgaSendCommand(FPGA_CMD_TRACE_ENABLE, 1);
+}
+
+void FpgaDisableTracing(void) {
+	FpgaSendCommand(FPGA_CMD_TRACE_ENABLE, 0);
+}
+
 //-----------------------------------------------------------------------------
 // Set up the CMOS switches that mux the ADC: four switches, independently
 // closable, but should only close one at a time. Not an FPGA thing, but

armsrc/fpgaloader.h

@@ -41,7 +41,7 @@ thres|                          x x x x x x x x
 */
 
 // Definitions for the FPGA commands.
-// HF / LF
+// BOTH HF / LF
 #define FPGA_CMD_SET_CONFREG                        (1<<12) // C
 
 // LF
@@ -67,7 +67,7 @@ thres|                          x x x x x x x x
 #define FPGA_MAJOR_MODE_HF_ISO18092                 (5<<5) // D
 #define FPGA_MAJOR_MODE_HF_GET_TRACE                (6<<5) // D
 
-// BOTH
+// BOTH HF / LF
 #define FPGA_MAJOR_MODE_OFF                         (7<<5) // D
 
 // Options for LF_READER
@@ -107,7 +107,9 @@ thres|                          x x x x x x x x
 #define FPGA_HF_ISO18092_FLAG_READER                0x4 // 0100 enables antenna power, to act as a reader instead of tag
 
 void FpgaSendCommand(uint16_t cmd, uint16_t v);
-void FpgaWriteConfWord(uint8_t v);
+void FpgaWriteConfWord(uint16_t v);
+void FpgaEnableTracing(void);
+void FpgaDisableTracing(void);
 void FpgaDownloadAndGo(int bitstream_version);
 // void FpgaGatherVersion(int bitstream_version, char *dst, int len);
 void FpgaSetupSsc(void);

fpga/Makefile

@@ -11,7 +11,7 @@ clean:
 	$(Q)$(RM) *.map *.ngc *.xrpt *.pcf *.rbt *.bld *.mrp *.ngm *.unroutes *_summary.xml netlist.lst
 	$(Q)$(RMDIR) *_auto_* xst
 
-fpga_hf.ngc: fpga_hf.v fpga.ucf xst_hf.scr util.v hi_simulate.v hi_read_tx.v hi_read_rx_xcorr.v hi_iso14443a.v hi_sniffer.v hi_flite.v
+fpga_hf.ngc: fpga_hf.v fpga.ucf xst_hf.scr util.v hi_simulate.v hi_read_tx.v hi_read_rx_xcorr.v hi_iso14443a.v hi_sniffer.v hi_flite.v hi_get_trace.v
 	$(Q)$(RM) $@
 	$(info [-] XST $@)
 	$(Q)$(XILINX_TOOLS_PREFIX)xst -ifn xst_hf.scr

fpga/fpga_hf.v

@@ -11,9 +11,54 @@
 // Jonathan Westhues, March 2006
 // Added ISO14443-A support by Gerhard de Koning Gans, April 2008
 // iZsh <izsh at fail0verflow.com>, June 2014
+// Piwi, Feb 2019
 //-----------------------------------------------------------------------------
 
+
+// Defining commands, modes and options. This must be aligned to the definitions in fpgaloader.h
+// Note: the definitions here are without shifts
+
+// Commands:
 `define FPGA_CMD_SET_CONFREG                        1
+`define FPGA_CMD_TRACE_ENABLE                       2
+
+// Major modes:
+`define FPGA_MAJOR_MODE_HF_READER_TX                0
+`define FPGA_MAJOR_MODE_HF_READER_RX_XCORR          1
+`define FPGA_MAJOR_MODE_HF_SIMULATOR                2
+`define FPGA_MAJOR_MODE_HF_ISO14443A                3
+`define FPGA_MAJOR_MODE_HF_SNOOP                    4
+`define FPGA_MAJOR_MODE_HF_ISO18092                 5
+`define FPGA_MAJOR_MODE_HF_GET_TRACE                6
+`define FPGA_MAJOR_MODE_OFF                         7
+
+// Options for the generic HF reader
+// Options for the HF reader, tx to tag
+`define FPGA_HF_READER_TX_SHALLOW_MOD               1
+
+// Options for the HF reader, correlating against rx from tag
+`define FPGA_HF_READER_RX_XCORR_848_KHZ             1
+`define FPGA_HF_READER_RX_XCORR_SNOOP               2
+`define FPGA_HF_READER_RX_XCORR_QUARTER             4
+
+// Options for the HF simulated tag, how to modulate
+`define FPGA_HF_SIMULATOR_NO_MODULATION             0
+`define FPGA_HF_SIMULATOR_MODULATE_BPSK             1
+`define FPGA_HF_SIMULATOR_MODULATE_212K             2
+`define FPGA_HF_SIMULATOR_MODULATE_424K             4
+`define FPGA_HF_SIMULATOR_MODULATE_424K_8BIT        5
+
+// Options for ISO14443A
+`define FPGA_HF_ISO14443A_SNIFFER                   0
+`define FPGA_HF_ISO14443A_TAGSIM_LISTEN             1
+`define FPGA_HF_ISO14443A_TAGSIM_MOD                2
+`define FPGA_HF_ISO14443A_READER_LISTEN             3
+`define FPGA_HF_ISO14443A_READER_MOD                4
+
+//options for ISO18092 / Felica
+`define FPGA_HF_ISO18092_FLAG_NOMOD                 1 // 0001 disable modulation module
+`define FPGA_HF_ISO18092_FLAG_424K                  2 // 0010 should enable 414k mode (untested). No autodetect
+`define FPGA_HF_ISO18092_FLAG_READER                4 // 0100 enables antenna power, to act as a reader instead of tag
 
 `include "hi_read_tx.v"
 `include "hi_read_rx_xcorr.v"
@@ -22,6 +67,7 @@
 `include "hi_sniffer.v"
 `include "util.v"
 `include "hi_flite.v"
+`include "hi_get_trace.v"
 
 module fpga_hf(
     input spck, output miso, input mosi, input ncs,
@@ -41,8 +87,33 @@ module fpga_hf(
 // to the configuration bits, for use below.
 //-----------------------------------------------------------------------------
 
+/*
+ Attempt to write up how its hooked up. Iceman 2020.
+
+ Communication between ARM / FPGA is done inside armsrc/fpgaloader.c see: function FpgaSendCommand()
+ Send 16 bit command / data pair to FPGA
+ The bit format is: C3 C2 C1 C0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
+ where 
+   C is 4bit command
+   D is 12bit data
+
+  shift_reg receive this 16bit frame
+
+
+-----+--------- frame layout --------------------
+bit  |    15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
+-----+-------------------------------------------
+cmd  |     x  x  x  x
+major|                          x x x              
+opt  |                                      x x
+divi |                          x x x x x x x x
+thres|                          x x x x x x x x
+-----+-------------------------------------------
+*/
+
 reg [15:0] shift_reg;
 reg [7:0] conf_word;
+reg trace_enable;
 
 // We switch modes between transmitting to the 13.56 MHz tag and receiving
 // from it, which means that we must make sure that we can do so without
@@ -50,10 +121,8 @@ reg [7:0] conf_word;
 always @(posedge ncs)
 begin
     case(shift_reg[15:12])
-        `FPGA_CMD_SET_CONFREG:
-        begin
-            conf_word <= shift_reg[7:0];
-        end
+        `FPGA_CMD_SET_CONFREG:  conf_word <= shift_reg[7:0];
+        `FPGA_CMD_TRACE_ENABLE: trace_enable <= shift_reg[0];
     endcase
 end
 
@@ -152,6 +221,13 @@ hi_flite hfl(
        hi_simulate_mod_type
 );
 
+hi_get_trace gt(
+	ck_1356megb,
+	adc_d, trace_enable, major_mode,
+	gt_ssp_frame, gt_ssp_din, gt_ssp_clk
+);
+
+
 // Major modes:
 
 //   000 --  HF reader, transmitting to tag; modulation depth selectable
@@ -160,12 +236,12 @@ hi_flite hfl(
 //   011 --  HF ISO14443-A
 //   100 --  HF Snoop
 //   101 --  Felica modem, reusing HF reader
-//   110 --  none
+//   110 --  HF get trace
 //   111 --  everything off
 
-mux8 mux_ssp_clk   (major_mode, ssp_clk,   ht_ssp_clk,   hrxc_ssp_clk,   hs_ssp_clk,   hisn_ssp_clk,   he_ssp_clk,   hfl_ssp_clk,   1'b0, 1'b0);
-mux8 mux_ssp_din   (major_mode, ssp_din,   ht_ssp_din,   hrxc_ssp_din,   hs_ssp_din,   hisn_ssp_din,   he_ssp_din,   hfl_ssp_din,   1'b0, 1'b0);
-mux8 mux_ssp_frame (major_mode, ssp_frame, ht_ssp_frame, hrxc_ssp_frame, hs_ssp_frame, hisn_ssp_frame, he_ssp_frame, hfl_ssp_frame, 1'b0, 1'b0);
+mux8 mux_ssp_clk   (major_mode, ssp_clk,   ht_ssp_clk,   hrxc_ssp_clk,   hs_ssp_clk,   hisn_ssp_clk,   he_ssp_clk,   hfl_ssp_clk,   gt_ssp_clk,   1'b0);
+mux8 mux_ssp_din   (major_mode, ssp_din,   ht_ssp_din,   hrxc_ssp_din,   hs_ssp_din,   hisn_ssp_din,   he_ssp_din,   hfl_ssp_din,   gt_ssp_din,   1'b0);
+mux8 mux_ssp_frame (major_mode, ssp_frame, ht_ssp_frame, hrxc_ssp_frame, hs_ssp_frame, hisn_ssp_frame, he_ssp_frame, hfl_ssp_frame, gt_ssp_frame, 1'b0);
 mux8 mux_pwr_oe1   (major_mode, pwr_oe1,   ht_pwr_oe1,   hrxc_pwr_oe1,   hs_pwr_oe1,   hisn_pwr_oe1,   he_pwr_oe1,   hfl_pwr_oe1,   1'b0,         1'b0);
 mux8 mux_pwr_oe2   (major_mode, pwr_oe2,   ht_pwr_oe2,   hrxc_pwr_oe2,   hs_pwr_oe2,   hisn_pwr_oe2,   he_pwr_oe2,   hfl_pwr_oe2,   1'b0,         1'b0);
 mux8 mux_pwr_oe3   (major_mode, pwr_oe3,   ht_pwr_oe3,   hrxc_pwr_oe3,   hs_pwr_oe3,   hisn_pwr_oe3,   he_pwr_oe3,   hfl_pwr_oe3,   1'b0,         1'b0);