From 1552562b3a9dd74c224c19dc54713770fed323a5 Mon Sep 17 00:00:00 2001 From: oharboe Date: Tue, 14 Apr 2009 19:17:17 +0000 Subject: [PATCH] Dick Hollenbeck work in progress git-svn-id: svn://svn.berlios.de/openocd/trunk@1457 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/xsvf/xsvf.c | 1147 +++++++++++++++++++++++------------------------ 1 file changed, 571 insertions(+), 576 deletions(-) diff --git a/src/xsvf/xsvf.c b/src/xsvf/xsvf.c index e3153a3e0..eea5ff16d 100644 --- a/src/xsvf/xsvf.c +++ b/src/xsvf/xsvf.c @@ -9,7 +9,7 @@ * peter.hettkamp@htp-tel.de * * * * Copyright (C) 2009 SoftPLC Corporation. http://softplc.com * - * dick@softplc.com * + * Dick Hollenbeck * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * @@ -352,659 +352,652 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha switch (opcode) { - case XCOMPLETE: - LOG_DEBUG("XCOMPLETE"); + case XCOMPLETE: + LOG_DEBUG("XCOMPLETE"); - result = jtag_execute_queue(); - if (result != ERROR_OK) + result = jtag_execute_queue(); + if (result != ERROR_OK) + { + tdo_mismatch = 1; + break; + } + break; + + case XTDOMASK: + LOG_DEBUG("XTDOMASK"); + if (dr_in_mask && (xsvf_read_buffer(xsdrsize, xsvf_fd, dr_in_mask) != ERROR_OK)) + do_abort = 1; + break; + + case XRUNTEST: + { + u8 xruntest_buf[4]; + + if (read(xsvf_fd, xruntest_buf, 4) < 0) { + do_abort = 1; + break; + } + + xruntest = be_to_h_u32(xruntest_buf); + LOG_DEBUG("XRUNTEST %d 0x%08X", xruntest, xruntest); + } + break; + + case XREPEAT: + { + u8 myrepeat; + + if (read(xsvf_fd, &myrepeat, 1) < 0) + do_abort = 1; + else + { + xrepeat = myrepeat; + LOG_DEBUG("XREPEAT %d", xrepeat ); + } + } + break; + + case XSDRSIZE: + { + u8 xsdrsize_buf[4]; + + if (read(xsvf_fd, xsdrsize_buf, 4) < 0) + { + do_abort = 1; + break; + } + + xsdrsize = be_to_h_u32(xsdrsize_buf); + LOG_DEBUG("XSDRSIZE %d", xsdrsize); + + if( dr_out_buf ) free(dr_out_buf); + if( dr_in_buf) free(dr_in_buf); + if( dr_in_mask) free(dr_in_mask); + + dr_out_buf = malloc((xsdrsize + 7) / 8); + dr_in_buf = malloc((xsdrsize + 7) / 8); + dr_in_mask = malloc((xsdrsize + 7) / 8); + } + break; + + case XSDR: /* these two are identical except for the dr_in_buf */ + case XSDRTDO: + { + int limit = xrepeat; + int matched = 0; + int attempt; + + const char* op_name = (opcode == XSDR ? "XSDR" : "XSDRTDO"); + + if (xsvf_read_buffer(xsdrsize, xsvf_fd, dr_out_buf) != ERROR_OK) + { + do_abort = 1; + break; + } + + if (opcode == XSDRTDO) + { + if(xsvf_read_buffer(xsdrsize, xsvf_fd, dr_in_buf) != ERROR_OK ) + { + do_abort = 1; + break; + } + } + + if (limit < 1) + limit = 1; + + LOG_DEBUG("%s %d", op_name, xsdrsize); + + for( attempt=0; attempt0 ) + { + /* perform the XC9500 exception handling sequence shown in xapp067.pdf and + illustrated in psuedo code at end of this file. We start from state + DRPAUSE: + go to Exit2-DR + go to Shift-DR + go to Exit1-DR + go to Update-DR + go to Run-Test/Idle + + This sequence should be harmless for other devices, and it + will be skipped entirely if xrepeat is set to zero. + */ + + static tap_state_t exception_path[] = { + TAP_DREXIT2, + TAP_DRSHIFT, + TAP_DREXIT1, + TAP_DRUPDATE, + TAP_IDLE, + }; + + jtag_add_pathmove( sizeof(exception_path)/sizeof(exception_path[0]), exception_path); + + if (verbose) + LOG_USER("%s mismatch, xsdrsize=%d retry=%d", op_name, xsdrsize, attempt); + } + + field.tap = tap; + field.num_bits = xsdrsize; + field.out_value = dr_out_buf; + field.out_mask = NULL; + field.in_value = NULL; + + jtag_set_check_value(&field, dr_in_buf, dr_in_mask, NULL); + + if (tap == NULL) + jtag_add_plain_dr_scan(1, &field, TAP_DRPAUSE); + else + jtag_add_dr_scan(1, &field, TAP_DRPAUSE); + + /* LOG_DEBUG("FLUSHING QUEUE"); */ + result = jtag_execute_queue(); + if (result == ERROR_OK) + { + matched = 1; + break; + } + } + + if (!matched) + { + LOG_USER( "%s mismatch", op_name); tdo_mismatch = 1; break; } - break; - case XTDOMASK: - LOG_DEBUG("XTDOMASK"); - if (dr_in_mask && (xsvf_read_buffer(xsdrsize, xsvf_fd, dr_in_mask) != ERROR_OK)) - do_abort = 1; - break; - - case XRUNTEST: + /* See page 19 of XSVF spec regarding opcode "XSDR" */ + if (xruntest) { - u8 xruntest_buf[4]; + xsvf_add_statemove(TAP_IDLE); - if (read(xsvf_fd, xruntest_buf, 4) < 0) - { - do_abort = 1; - break; - } - - xruntest = be_to_h_u32(xruntest_buf); - LOG_DEBUG("XRUNTEST %d 0x%08X", xruntest, xruntest); - } - break; - - case XREPEAT: - { - u8 myrepeat; - - if (read(xsvf_fd, &myrepeat, 1) < 0) - do_abort = 1; + if (runtest_requires_tck) + jtag_add_clocks(xruntest); else + jtag_add_sleep(xruntest); + } + else if (xendir != TAP_DRPAUSE) /* we are already in TAP_DRPAUSE */ + xsvf_add_statemove(xenddr); + } + break; + + case XSETSDRMASKS: + LOG_ERROR("unsupported XSETSDRMASKS\n"); + unsupported = 1; + break; + + case XSDRINC: + LOG_ERROR("unsupported XSDRINC\n"); + unsupported = 1; + break; + + case XSDRB: + LOG_ERROR("unsupported XSDRB\n"); + unsupported = 1; + break; + + case XSDRC: + LOG_ERROR("unsupported XSDRC\n"); + unsupported = 1; + break; + + case XSDRE: + LOG_ERROR("unsupported XSDRE\n"); + unsupported = 1; + break; + + case XSDRTDOB: + LOG_ERROR("unsupported XSDRTDOB\n"); + unsupported = 1; + break; + + case XSDRTDOC: + LOG_ERROR("unsupported XSDRTDOC\n"); + unsupported = 1; + break; + + case XSDRTDOE: + LOG_ERROR("unsupported XSDRTDOE\n"); + unsupported = 1; + break; + + case XSTATE: + { + tap_state_t mystate; + tap_state_t* path; + int path_len; + + if (read(xsvf_fd, &uc, 1) < 0) + { + do_abort = 1; + break; + } + + mystate = xsvf_to_tap(uc); + + LOG_DEBUG("XSTATE 0x%02X %s", uc, tap_state_name(mystate) ); + + path = calloc(XSTATE_MAX_PATH, 4); + path_len = 1; + + path[0] = mystate; + if (xsvf_read_xstates(xsvf_fd, path, XSTATE_MAX_PATH, &path_len) != ERROR_OK) + do_abort = 1; + else + { + int i,lasti; + + /* here the trick is that jtag_add_pathmove() must end in a stable + * state, so we must only invoke jtag_add_tlr() when we absolutely + * have to + */ + for(i=0,lasti=0; ilasti) + { + jtag_add_pathmove(i-lasti,path+lasti); + } + lasti=i+1; + jtag_add_tlr(); + } + } + if(i>=lasti) + { + jtag_add_pathmove(i-lasti, path+lasti); } } + free(path); + } + break; + + case XENDIR: + + if (read(xsvf_fd, &uc, 1) < 0) + { + do_abort = 1; break; + } - case XSDRSIZE: + /* see page 22 of XSVF spec */ + if( uc == 0 ) + xendir = TAP_IDLE; + else if( uc == 1 ) + xendir = TAP_IRPAUSE; + else + { + LOG_ERROR("illegial XENDIR argument: 0x%02X", uc); + unsupported = 1; + break; + } + + LOG_DEBUG("XENDIR 0x%02X %s", uc, tap_state_name(xendir)); + break; + + case XENDDR: + + if (read(xsvf_fd, &uc, 1) < 0) + { + do_abort = 1; + break; + } + + /* see page 22 of XSVF spec */ + if( uc == 0 ) + xenddr = TAP_IDLE; + else if( uc == 1 ) + xenddr = TAP_DRPAUSE; + else + { + LOG_ERROR("illegial XENDDR argument: 0x%02X", uc); + unsupported = 1; + break; + } + + LOG_DEBUG("XENDDR %02X %s", uc, tap_state_name(xenddr)); + break; + + case XSIR: + case XSIR2: + { + u8 short_buf[2]; + u8* ir_buf; + int bitcount; + tap_state_t my_end_state = xruntest ? TAP_IDLE : xendir; + + if( opcode == XSIR ) { - u8 xsdrsize_buf[4]; - - if (read(xsvf_fd, xsdrsize_buf, 4) < 0) + /* one byte bitcount */ + if (read(xsvf_fd, short_buf, 1) < 0) { do_abort = 1; break; } - - xsdrsize = be_to_h_u32(xsdrsize_buf); - LOG_DEBUG("XSDRSIZE %d", xsdrsize); - - if( dr_out_buf ) free(dr_out_buf); - if( dr_in_buf) free(dr_in_buf); - if( dr_in_mask) free(dr_in_mask); - - dr_out_buf = malloc((xsdrsize + 7) / 8); - dr_in_buf = malloc((xsdrsize + 7) / 8); - dr_in_mask = malloc((xsdrsize + 7) / 8); + bitcount = short_buf[0]; + LOG_DEBUG("XSIR %d", bitcount); } - break; - - case XSDR: /* these two are identical except for the dr_in_buf */ - case XSDRTDO: + else { - int limit = xrepeat; - int matched = 0; - int attempt; - - const char* op_name = (opcode == XSDR ? "XSDR" : "XSDRTDO"); - - if (xsvf_read_buffer(xsdrsize, xsvf_fd, dr_out_buf) != ERROR_OK) + if (read(xsvf_fd, short_buf, 2) < 0) { do_abort = 1; break; } + bitcount = be_to_h_u16(short_buf); + LOG_DEBUG("XSIR2 %d", bitcount); + } - if (opcode == XSDRTDO) - { - if(xsvf_read_buffer(xsdrsize, xsvf_fd, dr_in_buf) != ERROR_OK ) - { - do_abort = 1; - break; - } - } + ir_buf = malloc((bitcount+7) / 8); - if (limit < 1) - limit = 1; + if (xsvf_read_buffer(bitcount, xsvf_fd, ir_buf) != ERROR_OK) + do_abort = 1; + else + { + scan_field_t field; - LOG_DEBUG("%s %d", op_name, xsdrsize); + field.tap = tap; + field.num_bits = bitcount; + field.out_value = ir_buf; + field.out_mask = NULL; + field.in_value = NULL; + field.in_check_value = NULL; + field.in_check_mask = NULL; + field.in_handler = NULL; + field.in_handler_priv = NULL; - for( attempt=0; attempt0 ) - { - /* perform the XC9500 exception handling sequence shown in xapp067.pdf and - illustrated in psuedo code at end of this file. We start from state - DRPAUSE: - go to Exit2-DR - go to Shift-DR - go to Exit1-DR - go to Update-DR - go to Run-Test/Idle - - This sequence should be harmless for other devices, and it - will be skipped entirely if xrepeat is set to zero. - */ - - static tap_state_t exception_path[] = { - TAP_DREXIT2, - TAP_DRSHIFT, - TAP_DREXIT1, - TAP_DRUPDATE, - TAP_IDLE, - }; - - jtag_add_pathmove( sizeof(exception_path)/sizeof(exception_path[0]), exception_path); - - if (verbose) - LOG_USER("%s %d retry %d", op_name, xsdrsize, attempt); - } - - field.tap = tap; - field.num_bits = xsdrsize; - field.out_value = dr_out_buf; - field.out_mask = NULL; - field.in_value = NULL; - - jtag_set_check_value(&field, dr_in_buf, dr_in_mask, NULL); - - if (tap == NULL) - jtag_add_plain_dr_scan(1, &field, TAP_DRPAUSE); - else - jtag_add_dr_scan(1, &field, TAP_DRPAUSE); - - /* LOG_DEBUG("FLUSHING QUEUE"); */ - result = jtag_execute_queue(); - if (result == ERROR_OK) - { - matched = 1; - break; - } - } - - if (!matched) - { - LOG_USER( "%s mismatch", op_name); - tdo_mismatch = 1; - break; - } - - /* See page 19 of XSVF spec regarding opcode "XSDR" */ if (xruntest) { - xsvf_add_statemove(TAP_IDLE); - if (runtest_requires_tck) jtag_add_clocks(xruntest); else jtag_add_sleep(xruntest); } - else if (xendir != TAP_DRPAUSE) /* we are already in TAP_DRPAUSE */ - xsvf_add_statemove(xenddr); - } - break; - case XSETSDRMASKS: - LOG_ERROR("unsupported XSETSDRMASKS\n"); - unsupported = 1; - break; - - case XSDRINC: - LOG_ERROR("unsupported XSDRINC\n"); - unsupported = 1; - break; - - case XSDRB: - LOG_ERROR("unsupported XSDRB\n"); - unsupported = 1; - break; - - case XSDRC: - LOG_ERROR("unsupported XSDRC\n"); - unsupported = 1; - break; - - case XSDRE: - LOG_ERROR("unsupported XSDRE\n"); - unsupported = 1; - break; - - case XSDRTDOB: - LOG_ERROR("unsupported XSDRTDOB\n"); - unsupported = 1; - break; - - case XSDRTDOC: - LOG_ERROR("unsupported XSDRTDOC\n"); - unsupported = 1; - break; - - case XSDRTDOE: - LOG_ERROR("unsupported XSDRTDOE\n"); - unsupported = 1; - break; - - case XSTATE: - { - tap_state_t mystate; - tap_state_t *path; - int path_len; - - if (read(xsvf_fd, &uc, 1) < 0) - { - do_abort = 1; - break; - } - - mystate = xsvf_to_tap(uc); - - LOG_DEBUG("XSTATE 0x%02X %s", uc, tap_state_name(mystate) ); - - path = calloc(XSTATE_MAX_PATH, 4); - path_len = 1; - - path[0] = mystate; - if (xsvf_read_xstates(xsvf_fd, path, XSTATE_MAX_PATH, &path_len) != ERROR_OK) - do_abort = 1; - else - { - int i,lasti; - - /* here the trick is that jtag_add_pathmove() must end in a stable - * state, so we must only invoke jtag_add_tlr() when we absolutely - * have to - */ - for(i=0,lasti=0; ilasti) - { - jtag_add_pathmove(i-lasti,path+lasti); - } - lasti=i+1; - jtag_add_tlr(); - } - } - if(i>=lasti) - { - jtag_add_pathmove(i-lasti, path+lasti); - } - } - free(path); - } - break; - - case XENDIR: - { - tap_state_t mystate; - - if (read(xsvf_fd, &uc, 1) < 0) - { - do_abort = 1; - break; - } - - /* see page 22 of XSVF spec */ - mystate = uc == 1 ? TAP_IRPAUSE : TAP_IDLE; - - LOG_DEBUG("XENDIR 0x%02X %s", uc, tap_state_name(mystate)); - - /* assuming that the XRUNTEST comes from SVF RUNTEST, then only these states - * should come here because the SVF spec only allows these with a RUNTEST + /* Note that an -irmask of non-zero in your config file + * can cause this to fail. Setting -irmask to zero cand work + * around the problem. */ - if (mystate != TAP_IRPAUSE && mystate != TAP_DRPAUSE && mystate != TAP_RESET && mystate != TAP_IDLE ) + + /* LOG_DEBUG("FLUSHING QUEUE"); */ + result = jtag_execute_queue(); + if(result != ERROR_OK) { - LOG_ERROR("illegal XENDIR endstate: \"%s\"", tap_state_name(mystate)); - unsupported = 1; - break; + tdo_mismatch = 1; } - xendir = mystate; } - break; + free(ir_buf); + } + break; - case XENDDR: + case XCOMMENT: + { + int ndx = 0; + char comment[128]; + + do { - tap_state_t mystate; - if (read(xsvf_fd, &uc, 1) < 0) { do_abort = 1; break; } - /* see page 22 of XSVF spec */ - mystate = uc == 1 ? TAP_DRPAUSE : TAP_IDLE; + if ( ndx < sizeof(comment)-1 ) + comment[ndx++] = uc; - LOG_DEBUG("XENDDR %02X %s", uc, tap_state_name(mystate)); + } while (uc != 0); - if (mystate != TAP_IRPAUSE && mystate != TAP_DRPAUSE && mystate != TAP_RESET && mystate != TAP_IDLE ) - { - LOG_ERROR("illegal XENDDR endstate: \"%s\"", tap_state_name( mystate )); - unsupported = 1; - break; - } - xenddr = mystate; - } - break; + comment[sizeof(comment)-1] = 0; /* regardless, terminate */ + if (verbose) + LOG_USER(comment); + } + break; - case XSIR: - case XSIR2: + case XWAIT: + { + /* expected in stream: + XWAIT + */ + + u8 wait; + u8 end; + u8 delay_buf[4]; + + tap_state_t wait_state; + tap_state_t end_state; + int delay; + + if ( read(xsvf_fd, &wait, 1) < 0 + || read(xsvf_fd, &end, 1) < 0 + || read(xsvf_fd, delay_buf, 4) < 0) { - u8 short_buf[2]; - u8* ir_buf; - int bitcount; - tap_state_t my_end_state = xruntest ? TAP_IDLE : xendir; - - if( opcode == XSIR ) - { - /* one byte bitcount */ - if (read(xsvf_fd, short_buf, 1) < 0) - { - do_abort = 1; - break; - } - bitcount = short_buf[0]; - LOG_DEBUG("XSIR %d", bitcount); - } - else - { - if (read(xsvf_fd, short_buf, 2) < 0) - { - do_abort = 1; - break; - } - bitcount = be_to_h_u16(short_buf); - LOG_DEBUG("XSIR2 %d", bitcount); - } - - ir_buf = malloc((bitcount+7) / 8); - - if (xsvf_read_buffer(bitcount, xsvf_fd, ir_buf) != ERROR_OK) - do_abort = 1; - else - { - scan_field_t field; - - field.tap = tap; - field.num_bits = bitcount; - field.out_value = ir_buf; - field.out_mask = NULL; - field.in_value = NULL; - field.in_check_value = NULL; - field.in_check_mask = NULL; - field.in_handler = NULL; - field.in_handler_priv = NULL; - - if (tap == NULL) - jtag_add_plain_ir_scan(1, &field, my_end_state); - else - jtag_add_ir_scan(1, &field, my_end_state); - - if (xruntest) - { - if (runtest_requires_tck) - jtag_add_clocks(xruntest); - else - jtag_add_sleep(xruntest); - } - - /* Note that an -irmask of non-zero in your config file - * can cause this to fail. Setting -irmask to zero cand work - * around the problem. - */ - - /* LOG_DEBUG("FLUSHING QUEUE"); */ - result = jtag_execute_queue(); - if(result != ERROR_OK) - { - tdo_mismatch = 1; - } - } - free(ir_buf); + do_abort = 1; + break; } - break; - case XCOMMENT: + wait_state = xsvf_to_tap(wait); + end_state = xsvf_to_tap(end); + delay = be_to_h_u32(delay_buf); + + LOG_DEBUG("XWAIT %s %s usecs:%d", tap_state_name(wait_state), tap_state_name(end_state), delay); + + if (runtest_requires_tck && wait_state == TAP_IDLE ) { - int ndx = 0; - char comment[128]; - - do - { - if (read(xsvf_fd, &uc, 1) < 0) - { - do_abort = 1; - break; - } - - if ( ndx < sizeof(comment)-1 ) - comment[ndx++] = uc; - - } while (uc != 0); - - comment[sizeof(comment)-1] = 0; /* regardless, terminate */ - if (verbose) - LOG_USER(comment); + jtag_add_runtest(delay, end_state); } - break; - - case XWAIT: + else { - /* expected in stream: - XWAIT - */ - - u8 wait; - u8 end; - u8 delay_buf[4]; - - tap_state_t wait_state; - tap_state_t end_state; - int delay; - - if ( read(xsvf_fd, &wait, 1) < 0 - || read(xsvf_fd, &end, 1) < 0 - || read(xsvf_fd, delay_buf, 4) < 0) - { - do_abort = 1; - break; - } - - wait_state = xsvf_to_tap(wait); - end_state = xsvf_to_tap(end); - delay = be_to_h_u32(delay_buf); - - LOG_DEBUG("XWAIT %s %s usecs:%d", tap_state_name(wait_state), tap_state_name(end_state), delay); - - if (runtest_requires_tck && wait_state == TAP_IDLE ) - { - jtag_add_runtest(delay, end_state); - } - else - { - xsvf_add_statemove( wait_state ); - jtag_add_sleep(delay); - xsvf_add_statemove( end_state ); - } - } - break; - - case XWAITSTATE: - { - /* expected in stream: - XWAITSTATE - */ - - u8 clock_buf[4]; - u8 usecs_buf[4]; - u8 wait; - u8 end; - tap_state_t wait_state; - tap_state_t end_state; - int clock_count; - int usecs; - - if ( read(xsvf_fd, &wait, 1) < 0 - || read(xsvf_fd, &end, 1) < 0 - || read(xsvf_fd, clock_buf, 4) < 0 - || read(xsvf_fd, usecs_buf, 4) < 0 ) - { - do_abort = 1; - break; - } - - wait_state = xsvf_to_tap( wait ); - end_state = xsvf_to_tap( end ); - - clock_count = be_to_h_u32(clock_buf); - usecs = be_to_h_u32(usecs_buf); - - LOG_DEBUG("XWAITSTATE %s %s clocks:%i usecs:%i", - tap_state_name(wait_state), - tap_state_name(end_state), - clock_count, usecs); - - /* the following states are 'stable', meaning that they have a transition - * in the state diagram back to themselves. This is necessary because we will - * be issuing a number of clocks in this state. This set of allowed states is also - * determined by the SVF RUNTEST command's allowed states. - */ - if (wait_state != TAP_IRPAUSE && wait_state != TAP_DRPAUSE && wait_state != TAP_RESET && wait_state != TAP_IDLE) - { - LOG_ERROR("illegal XWAITSTATE wait_state: \"%s\"", tap_state_name( wait_state )); - unsupported = 1; - } - xsvf_add_statemove( wait_state ); - - jtag_add_clocks( clock_count ); - - jtag_add_sleep( usecs ); - + jtag_add_sleep(delay); xsvf_add_statemove( end_state ); } - break; + } + break; - case LCOUNT: + case XWAITSTATE: + { + /* expected in stream: + XWAITSTATE + */ + + u8 clock_buf[4]; + u8 usecs_buf[4]; + u8 wait; + u8 end; + tap_state_t wait_state; + tap_state_t end_state; + int clock_count; + int usecs; + + if ( read(xsvf_fd, &wait, 1) < 0 + || read(xsvf_fd, &end, 1) < 0 + || read(xsvf_fd, clock_buf, 4) < 0 + || read(xsvf_fd, usecs_buf, 4) < 0 ) { - /* expected in stream: - LCOUNT - */ - u8 count_buf[4]; - - if ( read(xsvf_fd, count_buf, 4) < 0 ) - { - do_abort = 1; - break; - } - - loop_count = be_to_h_u32(count_buf); - LOG_DEBUG("LCOUNT %d", loop_count); + do_abort = 1; + break; } - break; - case LDELAY: + wait_state = xsvf_to_tap( wait ); + end_state = xsvf_to_tap( end ); + + clock_count = be_to_h_u32(clock_buf); + usecs = be_to_h_u32(usecs_buf); + + LOG_DEBUG("XWAITSTATE %s %s clocks:%i usecs:%i", + tap_state_name(wait_state), + tap_state_name(end_state), + clock_count, usecs); + + /* the following states are 'stable', meaning that they have a transition + * in the state diagram back to themselves. This is necessary because we will + * be issuing a number of clocks in this state. This set of allowed states is also + * determined by the SVF RUNTEST command's allowed states. + */ + if (wait_state != TAP_IRPAUSE && wait_state != TAP_DRPAUSE && wait_state != TAP_RESET && wait_state != TAP_IDLE) { - /* expected in stream: - LDELAY - */ - u8 state; - u8 clock_buf[4]; - u8 usecs_buf[4]; - - if ( read(xsvf_fd, &state, 1) < 0 - || read(xsvf_fd, clock_buf, 4) < 0 - || read(xsvf_fd, usecs_buf, 4) < 0 ) - { - do_abort = 1; - break; - } - - loop_state = xsvf_to_tap(state); - loop_clocks = be_to_h_u32(clock_buf); - loop_usecs = be_to_h_u32(usecs_buf); - - LOG_DEBUG("LDELAY %s clocks:%d usecs:%d", tap_state_name(loop_state), loop_clocks, loop_usecs); + LOG_ERROR("illegal XWAITSTATE wait_state: \"%s\"", tap_state_name( wait_state )); + unsupported = 1; } - break; - /* LSDR is more like XSDRTDO than it is like XSDR. It uses LDELAY which - * comes with clocks !AND! sleep requirements. - */ - case LSDR: + xsvf_add_statemove( wait_state ); + + jtag_add_clocks( clock_count ); + + jtag_add_sleep( usecs ); + + xsvf_add_statemove( end_state ); + } + break; + + case LCOUNT: + { + /* expected in stream: + LCOUNT + */ + u8 count_buf[4]; + + if ( read(xsvf_fd, count_buf, 4) < 0 ) { - int limit = loop_count; - int matched = 0; - int attempt; + do_abort = 1; + break; + } - LOG_DEBUG("LSDR"); + loop_count = be_to_h_u32(count_buf); + LOG_DEBUG("LCOUNT %d", loop_count); + } + break; - if ( xsvf_read_buffer(xsdrsize, xsvf_fd, dr_out_buf) != ERROR_OK - || xsvf_read_buffer(xsdrsize, xsvf_fd, dr_in_buf) != ERROR_OK ) + case LDELAY: + { + /* expected in stream: + LDELAY + */ + u8 state; + u8 clock_buf[4]; + u8 usecs_buf[4]; + + if ( read(xsvf_fd, &state, 1) < 0 + || read(xsvf_fd, clock_buf, 4) < 0 + || read(xsvf_fd, usecs_buf, 4) < 0 ) + { + do_abort = 1; + break; + } + + loop_state = xsvf_to_tap(state); + loop_clocks = be_to_h_u32(clock_buf); + loop_usecs = be_to_h_u32(usecs_buf); + + LOG_DEBUG("LDELAY %s clocks:%d usecs:%d", tap_state_name(loop_state), loop_clocks, loop_usecs); + } + break; + + /* LSDR is more like XSDRTDO than it is like XSDR. It uses LDELAY which + * comes with clocks !AND! sleep requirements. + */ + case LSDR: + { + int limit = loop_count; + int matched = 0; + int attempt; + + LOG_DEBUG("LSDR"); + + if ( xsvf_read_buffer(xsdrsize, xsvf_fd, dr_out_buf) != ERROR_OK + || xsvf_read_buffer(xsdrsize, xsvf_fd, dr_in_buf) != ERROR_OK ) + { + do_abort = 1; + break; + } + + if (limit < 1) + limit = 1; + + for( attempt=0; attempt 0 && verbose) + LOG_USER("LSDR retry %d", attempt); + + jtag_set_check_value(&field, dr_in_buf, dr_in_mask, NULL); + if (tap == NULL) + jtag_add_plain_dr_scan(1, &field, TAP_DRPAUSE); + else + jtag_add_dr_scan(1, &field, TAP_DRPAUSE); + + /* LOG_DEBUG("FLUSHING QUEUE"); */ + result = jtag_execute_queue(); + if(result == ERROR_OK) { - do_abort = 1; - break; - } - - if (limit < 1) - limit = 1; - - for( attempt=0; attempt 0 && verbose) - LOG_USER("LSDR retry %d", attempt); - - jtag_set_check_value(&field, dr_in_buf, dr_in_mask, NULL); - if (tap == NULL) - jtag_add_plain_dr_scan(1, &field, TAP_DRPAUSE); - else - jtag_add_dr_scan(1, &field, TAP_DRPAUSE); - - /* LOG_DEBUG("FLUSHING QUEUE"); */ - result = jtag_execute_queue(); - if(result == ERROR_OK) - { - matched = 1; - break; - } - } - - if (!matched ) - { - LOG_USER( "LSDR mismatch" ); - tdo_mismatch = 1; + matched = 1; break; } } - break; - case XTRST: + if (!matched ) { - u8 trst_mode; - - if (read(xsvf_fd, &trst_mode, 1) < 0) - { - do_abort = 1; - break; - } - - switch( trst_mode ) - { - case XTRST_ON: - jtag_add_reset(1, 0); - break; - case XTRST_OFF: - case XTRST_Z: - jtag_add_reset(0, 0); - break; - case XTRST_ABSENT: - break; - default: - LOG_ERROR( "XTRST mode argument (0x%02X) out of range", trst_mode ); - do_abort = 1; - } + LOG_USER( "LSDR mismatch" ); + tdo_mismatch = 1; + break; } - break; + } + break; - default: - LOG_ERROR("unknown xsvf command (0x%02X)\n", uc); - unsupported = 1; + case XTRST: + { + u8 trst_mode; + + if (read(xsvf_fd, &trst_mode, 1) < 0) + { + do_abort = 1; + break; + } + + switch( trst_mode ) + { + case XTRST_ON: + jtag_add_reset(1, 0); + break; + case XTRST_OFF: + case XTRST_Z: + jtag_add_reset(0, 0); + break; + case XTRST_ABSENT: + break; + default: + LOG_ERROR( "XTRST mode argument (0x%02X) out of range", trst_mode ); + do_abort = 1; + } + } + break; + + default: + LOG_ERROR("unknown xsvf command (0x%02X)\n", uc); + unsupported = 1; } if (do_abort || unsupported || tdo_mismatch) @@ -1058,7 +1051,9 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha } -/* PSUEDO-Code from Xilinx Appnote XAPP067.pdf: +#if 0 /* this comment style used to try and keep uncrustify from adding * at begin of line */ + +PSUEDO-Code from Xilinx Appnote XAPP067.pdf: the following pseudo code clarifies the intent of the xrepeat support. The flow given is for the entire processing of an SVF file, not an XSVF file. @@ -1106,4 +1101,4 @@ else if RUNTEST record then store as end if -*/ +#endif