#ifndef JTAG_H
#define JTAG_H
-#include <signal.h>
-#include <io.h>
-#include <iomacros.h>
-
-
-// Generic Commands
+#include "app.h"
+
+#define JTAG 0x10
+
+//! All states in the JTAG TAP
+enum eTAPState
+{
+ UNKNOWN = 0x0000,
+ TEST_LOGIC_RESET = 0x0001,
+ RUN_TEST_IDLE = 0x0002,
+ SELECT_DR_SCAN = 0x0004,
+ CAPTURE_DR = 0x0008,
+ SHIFT_DR = 0x0010,
+ EXIT1_DR = 0x0020,
+ PAUSE_DR = 0x0040,
+ EXIT2_DR = 0x0080,
+ UPDATE_DR = 0x0100,
+ SELECT_IR_SCAN = 0x0200,
+ CAPTURE_IR = 0x0400,
+ SHIFT_IR = 0x0800,
+ EXIT1_IR = 0x1000,
+ PAUSE_IR = 0x2000,
+ EXIT2_IR = 0x4000,
+ UPDATE_IR = 0x8000
+};
+
+extern unsigned char jtagid;
+
+//! the global state of the JTAG TAP
+extern enum eTAPState jtag_state;
+
+//! Returns true if we're in any of the data register states
+int in_dr();
+//! Returns true if we're in any of the instruction register states
+int in_ir();
+//! Returns true if we're in run-test-idle state
+int in_run_test_idle();
+//! Check the state
+int in_state(enum eTAPState state);
+
+//! jtag_trans_n flags
+enum eTransFlags
+{
+ MSB = 0x0,
+ LSB = 0x1,
+ NOEND = 0x2,
+ NORETIDLE = 0x4
+};
//! Shift n bytes.
-unsigned long jtagtransn(unsigned long word,
- unsigned char bitcount,
- unsigned char flags);
-//! Shift the address width.
-unsigned long jtag_dr_shiftadr(unsigned long in);
+uint32_t jtag_trans_n(uint32_t word,
+ uint8_t bitcount,
+ enum eTransFlags flags);
+//! Shift 8 bits in/out of selected register
+uint8_t jtag_trans_8(uint8_t in);
+//! Shift 16 bits in/out of selected register
+uint16_t jtag_trans_16(uint16_t in);
//! Shift 8 bits of the IR.
-unsigned char jtag_ir_shift8(unsigned char);
+uint8_t jtag_ir_shift_8(uint8_t in);
//! Shift 16 bits of the DR.
-unsigned int jtag_dr_shift16(unsigned int);
-//! Shift 20 bits of the DR, MSP430 specific.
-unsigned long jtag_dr_shift20(unsigned long in);
+uint16_t jtag_dr_shift_16(uint16_t in);
//! Stop JTAG, release pins
void jtag_stop();
-
//! Setup the JTAG pin directions.
-void jtagsetup();
-
+void jtag_setup();
//! Ratchet Clock Down and Up
void jtag_tcktock();
-//! Go to SHIFT_IR
-void jtag_goto_shift_ir();
-//! Go to SHIFT_DR
-void jtag_goto_shift_dr();
+//! Reset the target device
+void jtag_reset_target();
//! TAP RESET
-void jtag_resettap();
+void jtag_reset_tap();
+//! Get into the Shift-IR or Shift-DR
+void jtag_shift_register();
+//! Get into Capture-IR state
+void jtag_capture_ir();
+//! Get into Capture-DR state
+void jtag_capture_dr();
+//! Get to Run-Test-Idle without going through Test-Logic-Reset
+void jtag_run_test_idle();
+//! Detect instruction register width
+uint16_t jtag_detect_ir_width();
+//! Detects how many TAPs are in the JTAG chain
+uint16_t jtag_detect_chain_length();
+//! Gets device ID for specified chip in the chain
+uint32_t jtag_get_device_id(int chip);
//Pins. Both SPI and JTAG names are acceptable.
//#define SS BIT0
#define JTAGSPEED 20
#define JTAGDELAY(x) delay(x)
-#define SETMOSI P5OUT|=MOSI
-#define CLRMOSI P5OUT&=~MOSI
-#define SETCLK P5OUT|=SCK
-#define CLRCLK P5OUT&=~SCK
-#define READMISO (P5IN&MISO?1:0)
-#define SETTMS P5OUT|=TMS
-#define CLRTMS P5OUT&=~TMS
-#define SETTCK P5OUT|=TCK
-#define CLRTCK P5OUT&=~TCK
-#define SETTDI P5OUT|=TDI
-#define CLRTDI P5OUT&=~TDI
+
+#define SETMOSI SPIOUT|=MOSI
+#define CLRMOSI SPIOUT&=~MOSI
+#define SETCLK SPIOUT|=SCK
+#define CLRCLK SPIOUT&=~SCK
+#define READMISO (SPIIN&MISO?1:0)
+#define SETTMS SPIOUT|=TMS
+#define CLRTMS SPIOUT&=~TMS
+#define SETTCK SPIOUT|=TCK
+#define CLRTCK SPIOUT&=~TCK
+#define SETTDI SPIOUT|=TDI
+#define CLRTDI SPIOUT&=~TDI
#define SETTST P4OUT|=TST
#define CLRTST P4OUT&=~TST
#define CLRTCLK CLRTDI
extern int savedtclk;
-#define SAVETCLK savedtclk=P5OUT&TCLK;
-#define RESTORETCLK if(savedtclk) P5OUT|=TCLK; else P5OUT&=~TCLK
-
-//Replace every "CLRTCK SETTCK" with this.
-#define TCKTOCK CLRTCK,SETTCK
+#define SAVETCLK savedtclk=SPIOUT&TCLK;
+#define RESTORETCLK if(savedtclk) SPIOUT|=TCLK; else SPIOUT&=~TCLK
//JTAG commands
#define JTAG_IR_SHIFT 0x80
#define JTAG_DR_SHIFT 0x81
-#define JTAG_RESETTAP 0x82
-#define JTAG_RESETTARGET 0x83
-#define JTAG_DR_SHIFT20 0x91
-
-#define MSB 0
-#define LSB 1
-#define NOEND 2
-#define NORETIDLE 4
-
-
-//JTAG430 commands
-//#include "jtag430.h"
-#define Exit2_DR 0x0
-#define Exit_DR 0x1
-#define Shift_DR 0x2
-#define Pause_DR 0x3
-#define Select_IR 0x4
-#define Update_DR 0x5
-#define Capture_DR 0x6
-#define Select_DR 0x7
-#define Exit2_IR 0x8
-#define Exit_IR 0x9
-#define Shift_IR 0xa
-#define Pause_IR 0xb
-#define RunTest_Idle 0xc
-#define Update_IR 0xd
-#define Capture_IR 0xe
-#define Test_Reset 0xf
-
+#define JTAG_RESET_TAP 0x82
+#define JTAG_RESET_TARGET 0x83
+#define JTAG_DETECT_IR_WIDTH 0x84
+#define JTAG_DETECT_CHAIN_LENGTH 0x85
+#define JTAG_GET_DEVICE_ID 0x86
+//#define JTAG_DR_SHIFT20 0x91
+
+extern app_t const jtag_app;
+
#endif
projects / goodfet / blobdiff