git.zerfleddert.de Git - usb-driver/blame_incremental

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Commit	Line	Data
	1	#include <string.h>
	2	#include <stdio.h>
	3	#include "jtagmon.h"
	4
	5	enum tap_states {
	6	TEST_LOGIC_RESET,
	7	RUN_TEST_IDLE,
	8	SELECT_DR,
	9	CAPTURE_DR,
	10	SHIFT_DR,
	11	EXIT1_DR,
	12	PAUSE_DR,
	13	EXIT2_DR,
	14	UPDATE_DR,
	15	SELECT_IR,
	16	CAPTURE_IR,
	17	SHIFT_IR,
	18	EXIT1_IR,
	19	PAUSE_IR,
	20	EXIT2_IR,
	21	UPDATE_IR
	22	};
	23
	24	void jtagmon(unsigned char tck, unsigned char tms, unsigned char tdi) {
	25	static unsigned char last_tck = 1;
	26	static char tdi_written = 0;
	27	static int state = TEST_LOGIC_RESET;
	28	static char state_text[32] = "Test Logic Reset";
	29	char last_state_text[32];
	30	int last_state = state;
	31
	32	strcpy(last_state_text, state_text);
	33
	34	if (!last_tck && tck) {
	35	switch(state) {
	36	case TEST_LOGIC_RESET:
	37	if (tms) {
	38	state = TEST_LOGIC_RESET;
	39	} else {
	40	state = RUN_TEST_IDLE;
	41	}
	42	break;
	43	case RUN_TEST_IDLE:
	44	if (tms) {
	45	state = SELECT_DR;
	46	} else {
	47	state = RUN_TEST_IDLE;
	48	}
	49	break;
	50	case SELECT_DR:
	51	if (tms) {
	52	state = SELECT_IR;
	53	} else {
	54	state = CAPTURE_DR;
	55	}
	56	break;
	57	case CAPTURE_DR:
	58	if (tms) {
	59	state = EXIT1_DR;
	60	} else {
	61	state = SHIFT_DR;
	62	}
	63	break;
	64	case SHIFT_DR:
	65	if (tms) {
	66	state = EXIT1_DR;
	67	} else {
	68	state = SHIFT_DR;
	69	}
	70	break;
	71	case EXIT1_DR:
	72	if (tms) {
	73	state = UPDATE_DR;
	74	} else {
	75	state = PAUSE_DR;
	76	}
	77	break;
	78	case PAUSE_DR:
	79	if (tms) {
	80	state = EXIT2_DR;
	81	} else {
	82	state = PAUSE_DR;
	83	}
	84	break;
	85	case EXIT2_DR:
	86	if (tms) {
	87	state = UPDATE_DR;
	88	} else {
	89	state = SHIFT_DR;
	90	}
	91	break;
	92	case UPDATE_DR:
	93	if (tms) {
	94	state = SELECT_DR;
	95	} else {
	96	state = RUN_TEST_IDLE;
	97	}
	98	break;
	99	case SELECT_IR:
	100	if (tms) {
	101	state = TEST_LOGIC_RESET;
	102	} else {
	103	state = CAPTURE_IR;
	104	}
	105	break;
	106	case CAPTURE_IR:
	107	if (tms) {
	108	state = EXIT1_IR;
	109	} else {
	110	state = SHIFT_IR;
	111	}
	112	break;
	113	case SHIFT_IR:
	114	if (tms) {
	115	state = EXIT1_IR;
	116	} else {
	117	state = SHIFT_IR;
	118	}
	119	break;
	120	case EXIT1_IR:
	121	if (tms) {
	122	state = UPDATE_IR;
	123	} else {
	124	state = PAUSE_IR;
	125	}
	126	break;
	127	case PAUSE_IR:
	128	if (tms) {
	129	state = EXIT2_IR;
	130	} else {
	131	state = PAUSE_IR;
	132	}
	133	break;
	134	case EXIT2_IR:
	135	if (tms) {
	136	state = UPDATE_IR;
	137	} else {
	138	state = SHIFT_IR;
	139	}
	140	break;
	141	case UPDATE_IR:
	142	if (tms) {
	143	state = SELECT_DR;
	144	} else {
	145	state = RUN_TEST_IDLE;
	146	}
	147	break;
	148	}
	149
	150	switch(state) {
	151	case TEST_LOGIC_RESET:
	152	strcpy(state_text, "Test Logic Reset");
	153	break;
	154	case RUN_TEST_IDLE:
	155	strcpy(state_text, "Run-Test / Idle");
	156	break;
	157	case SELECT_DR:
	158	strcpy(state_text, "Select-DR");
	159	break;
	160	case CAPTURE_DR:
	161	strcpy(state_text, "Capture-DR");
	162	break;
	163	case SHIFT_DR:
	164	strcpy(state_text, "Shift-DR");
	165	break;
	166	case EXIT1_DR:
	167	strcpy(state_text, "Exit1-DR");
	168	break;
	169	case PAUSE_DR:
	170	strcpy(state_text, "Pause-DR");
	171	break;
	172	case EXIT2_DR:
	173	strcpy(state_text, "Exit2-DR");
	174	break;
	175	case UPDATE_DR:
	176	strcpy(state_text, "Update-DR");
	177	break;
	178	case SELECT_IR:
	179	strcpy(state_text, "Select-IR");
	180	break;
	181	case CAPTURE_IR:
	182	strcpy(state_text, "Capture-IR");
	183	break;
	184	case SHIFT_IR:
	185	strcpy(state_text, "Shift-IR");
	186	break;
	187	case EXIT1_IR:
	188	strcpy(state_text, "Exit1-IR");
	189	break;
	190	case PAUSE_IR:
	191	strcpy(state_text, "Pause-IR");
	192	break;
	193	case EXIT2_IR:
	194	strcpy(state_text, "Exit2-IR");
	195	break;
	196	case UPDATE_IR:
	197	strcpy(state_text, "Update-IR");
	198	break;
	199	}
	200
	201	if (last_state != state) {
	202	if (tdi_written)
	203	fprintf(stderr,"\n");
	204
	205	fprintf(stderr,"TAP state transition from %s to %s\n", last_state_text, state_text);
	206	tdi_written = 0;
	207	} else {
	208	fprintf(stderr,"%d",(tdi ? 1 : 0));
	209	tdi_written = 1;
	210	}
	211	}
	212
	213	last_tck = tck;
	214	}