diff options
author | drath <drath@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2007-07-15 11:19:33 +0000 |
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committer | drath <drath@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2007-07-15 11:19:33 +0000 |
commit | 1429d2c659ab9b84dee673e7697da7eab44a8f90 (patch) | |
tree | 03230f43a7404b1e22f0ffdafb69e41196808b30 /src/jtag | |
parent | 32c6d70f6acd41dd1af5ea73051dd6c8a46eac14 (diff) | |
download | riscv-openocd-1429d2c659ab9b84dee673e7697da7eab44a8f90.zip riscv-openocd-1429d2c659ab9b84dee673e7697da7eab44a8f90.tar.gz riscv-openocd-1429d2c659ab9b84dee673e7697da7eab44a8f90.tar.bz2 |
- added support for Asix Presto JTAG interface (thanks to Pavel Chromy and Asix for making this addition possible)
- added support for usbprog (thanks to Benedikt Sauter)
- make OpenOCD listen for WM_QUIT messages on windows (thanks to Pavel Chromy)
- register at_exit handler to do necessary unregistering (thanks to Pavel Chromy)
- added dummy ETM capture driver to allow ETM to be registered without a capture driver
git-svn-id: svn://svn.berlios.de/openocd/trunk@180 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/jtag')
-rw-r--r-- | src/jtag/Makefile.am | 21 | ||||
-rw-r--r-- | src/jtag/bitq.c | 388 | ||||
-rw-r--r-- | src/jtag/bitq.h | 57 | ||||
-rw-r--r-- | src/jtag/jtag.c | 14 | ||||
-rw-r--r-- | src/jtag/jtag.h | 2 | ||||
-rw-r--r-- | src/jtag/presto.c | 500 | ||||
-rw-r--r-- | src/jtag/usbprog.c | 632 |
7 files changed, 1612 insertions, 2 deletions
diff --git a/src/jtag/Makefile.am b/src/jtag/Makefile.am index 78230b6..64159e5 100644 --- a/src/jtag/Makefile.am +++ b/src/jtag/Makefile.am @@ -59,6 +59,25 @@ else GW16012FILES = endif -libjtag_a_SOURCES = jtag.c $(BITBANGFILES) $(PARPORTFILES) $(FT2232FILES) $(AMTJTAGACCELFILES) $(EP93XXFILES) $(AT91RM9200FILES) $(GW16012FILES) +if BITQ +BITQFILES = bitq.c +else +BITQFILES = +endif + +if PRESTO +PRESTOFILES = presto.c +else +PRESTOFILES = +endif + +if USBPROG +USBPROGFILES = usbprog.c +else +USBPROGFILES = +endif + +libjtag_a_SOURCES = jtag.c $(BITBANGFILES) $(PARPORTFILES) $(FT2232FILES) $(AMTJTAGACCELFILES) $(EP93XXFILES) \ + $(AT91RM9200FILES) $(GW16012FILES) $(BITQFILES) $(PRESTOFILES) $(USBPROGFILES) noinst_HEADERS = bitbang.h jtag.h diff --git a/src/jtag/bitq.c b/src/jtag/bitq.c new file mode 100644 index 0000000..03f9645 --- /dev/null +++ b/src/jtag/bitq.c @@ -0,0 +1,388 @@ +/*************************************************************************** + * Copyright (C) 2007 by Pavel Chromy * + * chromy@asix.cz * + * * + * 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 * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "bitq.h" + +/* project specific includes */ +#include "log.h" +#include "types.h" +#include "jtag.h" +#include "configuration.h" + +/* system includes */ +#include <string.h> +#include <stdlib.h> +#include <unistd.h> + +#include <sys/time.h> +#include <time.h> + + +bitq_interface_t *bitq_interface; /* low level bit queue interface */ + +bitq_state_t bitq_in_state; /* state of input queue */ + +u8 *bitq_in_buffer; /* buffer dynamically reallocated as needed */ +unsigned long bitq_in_bufsize=32; /* min. buffer size */ + + +/* + * input queue processing does not use jtag_read_buffer() to avoid unnecessary overhead + * also the buffer for incomming data is reallocated only if necessary + * no parameters, makes use of stored state information + */ +void bitq_in_proc(void) +{ + /* static information preserved between calls to increase performance */ + static u8 *in_buff; /* pointer to buffer for scanned data */ + static int in_idx; /* index of byte being scanned */ + static u8 in_mask; /* mask of next bit to be scanned */ + + scan_field_t *field; + int tdo; + + int result; + + /* loop through the queue */ + while (bitq_in_state.cmd) { + /* only JTAG_SCAN command may return data */ + if (bitq_in_state.cmd->type==JTAG_SCAN) { + /* loop through the fields */ + while (bitq_in_state.field_idx<bitq_in_state.cmd->cmd.scan->num_fields) { + + field=&bitq_in_state.cmd->cmd.scan->fields[bitq_in_state.field_idx]; + if (field->in_check_value || field->in_value || field->in_handler) { + + if (bitq_in_state.bit_pos==0) { + /* initialize field scanning */ + in_mask=0x01; + in_idx=0; + if (field->in_value) in_buff=field->in_value; + else { + /* buffer reallocation needed? */ + if (field->num_bits>bitq_in_bufsize*8) { + /* buffer previously allocated? */ + if (bitq_in_buffer!=NULL) { + /* free it */ + free(bitq_in_buffer); + bitq_in_buffer=NULL; + } + /* double the buffer size until it fits */ + while (field->num_bits>bitq_in_bufsize*8) bitq_in_bufsize*=2; + } + /* if necessary, allocate buffer and check for malloc error */ + if (bitq_in_buffer==NULL && (bitq_in_buffer=malloc(bitq_in_bufsize))==NULL) { + ERROR("malloc error"); + exit(-1); + } + in_buff=(void *)bitq_in_buffer; + } + } + + /* field scanning */ + while (bitq_in_state.bit_pos<field->num_bits) { + if ((tdo=bitq_interface->in())<0) { +#ifdef _DEBUG_JTAG_IO_ + DEBUG("bitq in EOF"); +#endif + return; + } + if (in_mask==0x01) in_buff[in_idx]=0; + if (tdo) in_buff[in_idx]|=in_mask; + if (in_mask==0x80) { + in_mask=0x01; + in_idx++; + } + else in_mask<<=1; + bitq_in_state.bit_pos++; + } + + if (field->in_check_value) { + /* match scanned in value */ + for (in_idx=0; in_idx*8<field->num_bits; in_idx++) { + if (field->in_check_mask) in_mask=field->in_check_mask[in_idx]; + else in_mask=0xff; + if (field->num_bits-in_idx*8<8) in_mask>>=8-(field->num_bits-in_idx*8); + if (field->in_check_value[in_idx]&in_mask!=in_buff[in_idx]&in_mask) { + char *captured_char = buf_to_str(in_buff, (field->num_bits > 64) ? 64 : field->num_bits, 16); + char *in_check_value_char = buf_to_str(field->in_check_value, (field->num_bits > 64) ? 64 : field->num_bits, 16); + char *in_check_mask_char = buf_to_str(field->in_check_mask, (field->num_bits > 64) ? 64 : field->num_bits, 16); + /* TODO: error reporting */ + WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char); + bitq_in_state.status=ERROR_JTAG_QUEUE_FAILED; + free(captured_char); + free(in_check_value_char); + free(in_check_mask_char); + break; /* leave the comparison loop upon first mismatch */ + } + } + } + + if (field->in_handler && bitq_in_state.status==ERROR_OK) { + bitq_in_state.status=(*field->in_handler)(in_buff, field->in_handler_priv); + } + + } + + bitq_in_state.field_idx++; /* advance to next field */ + bitq_in_state.bit_pos=0; /* start next field from the first bit */ + } + + } + bitq_in_state.cmd=bitq_in_state.cmd->next; /* advance to next command */ + bitq_in_state.field_idx=0; /* preselect first field */ + } +} + + + +void bitq_io(int tms, int tdi, int tdo_req) +{ + bitq_interface->out(tms, tdi, tdo_req); + /* check and process the input queue */ + if (bitq_interface->in_rdy()) bitq_in_proc(); +} + + +void bitq_end_state(enum tap_state state) +{ + if (state==-1) return; + if (tap_move_map[state]==-1) { + ERROR("BUG: %i is not a valid end state", state); + exit(-1); + } + end_state = state; +} + + +void bitq_state_move(enum tap_state new_state) +{ + int i=0; + u8 tms_scan; + + if (tap_move_map[cur_state]==-1 || tap_move_map[new_state]==-1) { + ERROR("TAP move from or to unstable state"); + exit(-1); + } + + tms_scan=TAP_MOVE(cur_state, new_state); + + for (i=0; i<7; i++) { + bitq_io(tms_scan&1, 0, 0); + tms_scan>>=1; + } + + cur_state = new_state; +} + + +void bitq_path_move(pathmove_command_t *cmd) +{ + int i; + + for (i=0; i<=cmd->num_states; i++) { + if (tap_transitions[cur_state].low == cmd->path[i]) bitq_io(0, 0, 0); + else if (tap_transitions[cur_state].high == cmd->path[i]) bitq_io(1, 0, 0); + else { + ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[i]]); + exit(-1); + } + + cur_state = cmd->path[i]; + } + + end_state = cur_state; +} + + +void bitq_runtest(int num_cycles) +{ + int i; + + /* only do a state_move when we're not already in RTI */ + if (cur_state != TAP_RTI) bitq_state_move(TAP_RTI); + + /* execute num_cycles */ + for (i = 0; i < num_cycles; i++) + bitq_io(0, 0, 0); + + /* finish in end_state */ + if (cur_state != end_state) bitq_state_move(end_state); +} + + +void bitq_scan_field(scan_field_t *field, int pause) +{ + int bit_cnt; + int tdo_req; + + u8 *out_ptr; + u8 out_mask; + + if (field->in_check_value || field->in_value || field->in_handler) tdo_req=1; + else tdo_req=0; + + if (field->out_value==NULL) { + /* just send zeros and request data from TDO */ + for (bit_cnt=field->num_bits; bit_cnt>1; bit_cnt--) + bitq_io(0, 0, tdo_req); + bitq_io(pause, 0, tdo_req); + } + else { + /* send data, and optionally request TDO */ + out_mask=0x01; + out_ptr=field->out_value; + for (bit_cnt=field->num_bits; bit_cnt>1; bit_cnt--) { + bitq_io(0, ((*out_ptr)&out_mask)!=0, tdo_req); + if (out_mask==0x80) { + out_mask=0x01; + out_ptr++; + } + else out_mask<<=1; + } + bitq_io(pause, ((*out_ptr)&out_mask)!=0, tdo_req); + } + + if (pause) { + bitq_io(0,0,0); + if (cur_state==TAP_SI) cur_state=TAP_PI; + else if (cur_state==TAP_SD) cur_state=TAP_PD; + } +} + + +void bitq_scan(scan_command_t *cmd) +{ + int i; + + if (cmd->ir_scan) bitq_state_move(TAP_SI); + else bitq_state_move(TAP_SD); + + for (i=0; i < cmd->num_fields-1; i++) + bitq_scan_field(&cmd->fields[i], 0); + bitq_scan_field(&cmd->fields[i], 1); +} + + +int bitq_execute_queue(void) +{ + jtag_command_t *cmd = jtag_command_queue; /* currently processed command */ + + bitq_in_state.cmd = jtag_command_queue; + bitq_in_state.field_idx = 0; + bitq_in_state.bit_pos = 0; + bitq_in_state.status = ERROR_OK; + + while (cmd) { + + switch (cmd->type) { + + case JTAG_END_STATE: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("end_state: %i", cmd->cmd.end_state->end_state); +#endif + bitq_end_state(cmd->cmd.end_state->end_state); + break; + + case JTAG_RESET: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst); +#endif + bitq_interface->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst); + if (bitq_interface->in_rdy()) bitq_in_proc(); + break; + + case JTAG_RUNTEST: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state); +#endif + bitq_end_state(cmd->cmd.runtest->end_state); + bitq_runtest(cmd->cmd.runtest->num_cycles); + break; + + case JTAG_STATEMOVE: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("statemove end in %i", cmd->cmd.statemove->end_state); +#endif + bitq_end_state(cmd->cmd.statemove->end_state); + bitq_state_move(end_state); /* uncoditional TAP move */ + break; + + case JTAG_PATHMOVE: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]); +#endif + bitq_path_move(cmd->cmd.pathmove); + break; + + case JTAG_SCAN: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("scan end in %i", cmd->cmd.scan->end_state); + if (cmd->cmd.scan->ir_scan) DEBUG("scan ir"); + else DEBUG("scan dr"); +#endif + bitq_end_state(cmd->cmd.scan->end_state); + bitq_scan(cmd->cmd.scan); + if (cur_state != end_state) bitq_state_move(end_state); + break; + + case JTAG_SLEEP: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("sleep %i", cmd->cmd.sleep->us); +#endif + bitq_interface->sleep(cmd->cmd.sleep->us); + if (bitq_interface->in_rdy()) bitq_in_proc(); + break; + + default: + ERROR("BUG: unknown JTAG command type encountered"); + exit(-1); + } + + cmd = cmd->next; + } + + bitq_interface->flush(); + bitq_in_proc(); + + if (bitq_in_state.cmd) { + ERROR("missing data from bitq interface"); + return ERROR_JTAG_QUEUE_FAILED; + } + if (bitq_interface->in()>=0) { + ERROR("extra data from bitq interface"); + return ERROR_JTAG_QUEUE_FAILED; + } + + return bitq_in_state.status; +} + + +void bitq_cleanup(void) +{ + if (bitq_in_buffer!=NULL) + { + free(bitq_in_buffer); + bitq_in_buffer=NULL; + } +} diff --git a/src/jtag/bitq.h b/src/jtag/bitq.h new file mode 100644 index 0000000..2ee3f6b --- /dev/null +++ b/src/jtag/bitq.h @@ -0,0 +1,57 @@ +/*************************************************************************** + * Copyright (C) 2007 by Pavel Chromy * + * chromy@asix.cz * + * * + * 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 * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifndef BITQ_H +#define BITQ_H + +#include "jtag.h" + +typedef struct bitq_interface_s +{ + /* functions enqueueing low level IO requests + */ + int (*out)(int tms, int tdi, int tdo_req); + int (*flush)(void); + + int (*sleep)(unsigned long us); + int (*reset)(int trst, int srst); + + /* delayed read of requested TDO data, + * the input shall be checked after call to any enqueuing function + */ + int (*in_rdy)(void); + int (*in)(void); +} bitq_interface_t; + +typedef struct bitq_state_s +{ + jtag_command_t *cmd; /* command currently processed */ + int field_idx; /* index of field currently being processed */ + int bit_pos; /* position of bit curently being processed */ + + int status; /* processing status */ +} bitq_state_t; + +extern bitq_interface_t *bitq_interface; + +extern int bitq_execute_queue(void); + +extern void bitq_cleanup(void); + +#endif /* BITQ_H */ diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c index 9891912..1db8247 100644 --- a/src/jtag/jtag.c +++ b/src/jtag/jtag.c @@ -162,6 +162,14 @@ jtag_event_callback_t *jtag_event_callbacks; extern jtag_interface_t gw16012_interface; #endif +#if BUILD_PRESTO == 1 + extern jtag_interface_t presto_interface; +#endif + +#if BUILD_USBPROG == 1 + extern jtag_interface_t usbprog_interface; +#endif + jtag_interface_t *jtag_interfaces[] = { #if BUILD_PARPORT == 1 &parport_interface, @@ -184,6 +192,12 @@ jtag_interface_t *jtag_interfaces[] = { #if BUILD_GW16012 == 1 &gw16012_interface, #endif +#if BUILD_PRESTO == 1 + &presto_interface, +#endif +#if BUILD_USBPROG == 1 + &usbprog_interface, +#endif NULL, }; diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index 1b03d61..470ba93 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -25,7 +25,7 @@ #include "command.h" -#if 0 +#if 1 #define _DEBUG_JTAG_IO_ #endif diff --git a/src/jtag/presto.c b/src/jtag/presto.c new file mode 100644 index 0000000..a6c048a --- /dev/null +++ b/src/jtag/presto.c @@ -0,0 +1,500 @@ +/*************************************************************************** + * Copyright (C) 2007 by Pavel Chromy * + * chromy@asix.cz * + * * + * 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 * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#if IS_CYGWIN == 1 +#include "windows.h" +#undef ERROR +#endif + +#include "replacements.h" + +/* project specific includes */ +#include "log.h" +#include "types.h" +#include "jtag.h" +#include "configuration.h" +#include "time_support.h" +#include "bitq.h" + +/* system includes */ +#include <string.h> +#include <stdlib.h> +#include <unistd.h> + +#include <sys/time.h> +#include <time.h> + +#include "ftd2xx.h" + + +int presto_jtag_speed(int speed); +int presto_jtag_register_commands(struct command_context_s *cmd_ctx); +int presto_jtag_init(void); +int presto_jtag_quit(void); + +jtag_interface_t presto_interface = +{ + .name = "presto", + .execute_queue = bitq_execute_queue, + .support_pathmove = 1, + .speed = presto_jtag_speed, + .register_commands = presto_jtag_register_commands, + .init = presto_jtag_init, + .quit = presto_jtag_quit, +}; + + +int presto_bitq_out(int tms, int tdi, int tdo_req); +int presto_bitq_flush(void); +int presto_bitq_sleep(unsigned long us); +int presto_bitq_reset(int rst, int en); +int presto_bitq_in_rdy(void); +int presto_bitq_in(void); + +bitq_interface_t presto_bitq = +{ + .out = presto_bitq_out, + .flush = presto_bitq_flush, + .sleep = presto_bitq_sleep, + .reset = presto_bitq_reset, + .in_rdy = presto_bitq_in_rdy, + .in = presto_bitq_in, +}; + + +/* -------------------------------------------------------------------------- */ + + +#define FT_DEVICE_NAME_LEN 64 +#define FT_DEVICE_SERNUM_LEN 64 + +#define PRESTO_VID_PID 0x0403f1a0 + +#define PRST_OK 0 +#define PRST_ERR 1 +#define PRST_TIMEOUT 2 + +#define BUFFER_SIZE (64*62) + + +typedef struct presto_s +{ + FT_HANDLE handle; + FT_STATUS status; + + char serial[FT_DEVICE_SERNUM_LEN]; + + BYTE buff_out[BUFFER_SIZE]; + int buff_out_pos; + + BYTE buff_in[BUFFER_SIZE]; + int buff_in_exp; /* expected in buffer length */ + int buff_in_len; /* length of data received */ + int buff_in_pos; + + unsigned long total_out; + unsigned long total_in; + + int jtag_tms; /* last tms state */ + int jtag_tck; /* last tck state */ + + int jtag_tdi_data; + int jtag_tdi_count; + +} presto_t; + +presto_t presto_state; +presto_t *presto=&presto_state; + +BYTE presto_init_seq[] = +{ + 0x80, 0xA0, 0xA8, 0xB0, 0xC0, 0xE0 +}; + + +int presto_open(char *req_serial) +{ + int i; + int result; + DWORD numdevs; + DWORD vidpid; + char devname[FT_DEVICE_NAME_LEN]; + FT_DEVICE device; + + BYTE presto_data; + unsigned long ftbytes; + + presto->handle=INVALID_HANDLE_VALUE; + + presto->buff_out_pos=0; + presto->buff_in_pos=0; + presto->buff_in_len=0; + presto->buff_in_exp=0; + + presto->total_out=0; + presto->total_in=0; + + presto->jtag_tms=0; + presto->jtag_tck=0; + presto->jtag_tdi_data=0; + presto->jtag_tdi_count=0; + + if (FT_ListDevices(&numdevs, NULL, FT_LIST_NUMBER_ONLY)!=FT_OK) return PRST_ERR; + for (i=0; i<numdevs; i++) + { + if (FT_Open(i, &(presto->handle))!=FT_OK) continue; + if (FT_GetDeviceInfo(presto->handle,&device,&vidpid,presto->serial,devname,NULL)==FT_OK) + { + if (vidpid==PRESTO_VID_PID && (req_serial==NULL || !strcmp(presto->serial,req_serial))) + break; + } + FT_Close(presto->handle); + presto->handle=INVALID_HANDLE_VALUE; + } + + if (presto->handle==INVALID_HANDLE_VALUE) return PRST_ERR; + + if ((presto->status=FT_SetLatencyTimer(presto->handle,1))!=FT_OK) return PRST_ERR; + if ((presto->status=FT_SetTimeouts(presto->handle,100,0))!=FT_OK) return PRST_ERR; + if ((presto->status=FT_Purge(presto->handle, FT_PURGE_TX|FT_PURGE_RX))!=FT_OK) return PRST_ERR; + + presto_data=0xD0; + if ((presto->status=FT_Write(presto->handle,&presto_data,1,&ftbytes))!=FT_OK) return PRST_ERR; + if ((presto->status=FT_Read(presto->handle,&presto_data,1,&ftbytes))!=FT_OK) return PRST_ERR; + + if (ftbytes!=1) + { + if ((presto->status=FT_SetBitMode(presto->handle,0x80,1))!=FT_OK) return PRST_ERR; + if ((presto->status=FT_Purge(presto->handle, FT_PURGE_TX|FT_PURGE_RX))!=FT_OK) return PRST_ERR ; + if ((presto->status=FT_SetBaudRate(presto->handle,9600))!=FT_OK) return PRST_ERR; + + presto_data=0; + for (i=0; i<4*62; i++) + if ((presto->status=FT_Write(presto->handle,&presto_data,1,&ftbytes))!=FT_OK) return PRST_ERR; + + usleep(100000); + + if ((presto->status=FT_SetBitMode(presto->handle,0x00,0))!=FT_OK) return PRST_ERR; + if ((presto->status=FT_Purge(presto->handle, FT_PURGE_TX|FT_PURGE_RX))!=FT_OK) return PRST_ERR; + + presto_data=0xD0; + if ((presto->status=FT_Write(presto->handle,&presto_data,1,&ftbytes))!=FT_OK) return PRST_ERR; + if ((presto->status=FT_Read(presto->handle,&presto_data,1,&ftbytes))!=FT_OK) return PRST_ERR; + if (ftbytes!=1) return PRST_ERR; + } + + if ((presto->status=FT_SetTimeouts(presto->handle,0,0))!=FT_OK) return PRST_ERR; + + presto->status=FT_Write(presto->handle,&presto_init_seq,sizeof(presto_init_seq),&ftbytes); + if (presto->status!=FT_OK) return PRST_ERR; + if (ftbytes!=sizeof(presto_init_seq)) return PRST_TIMEOUT; + + return PRST_OK; +} + + +int presto_close(void) +{ + unsigned long ftbytes; + + int result=PRST_OK; + + if (presto->handle==INVALID_HANDLE_VALUE) return result; + + presto->status=FT_Write(presto->handle,&presto_init_seq,sizeof(presto_init_seq),&ftbytes); + if (presto->status!=FT_OK) result=PRST_ERR; + if (ftbytes!=sizeof(presto_init_seq)) result=PRST_TIMEOUT; + + if ((presto->status=FT_SetLatencyTimer(presto->handle,16))!=FT_OK) result=PRST_ERR; + + if ((presto->status=FT_Close(presto->handle))!=FT_OK) result=PRST_ERR; + else presto->handle=INVALID_HANDLE_VALUE; + + return result; +} + + +int presto_flush(void) +{ + unsigned long ftbytes; + + if (presto->buff_out_pos==0) return PRST_OK; + if (presto->status!=FT_OK) return PRST_ERR; + + if ((presto->status=FT_Write(presto->handle, presto->buff_out, presto->buff_out_pos, &ftbytes))!=FT_OK) + { + presto->buff_out_pos=0; + return PRST_ERR; + } + + presto->total_out+=ftbytes; + + if (presto->buff_out_pos!=ftbytes) + { + presto->buff_out_pos=0; + return PRST_TIMEOUT; + } + + presto->buff_out_pos=0; + + if (presto->buff_in_exp==0) return PRST_OK; + + presto->buff_in_pos=0; + presto->buff_in_len=0; + + if ((presto->status=FT_Read(presto->handle, presto->buff_in, presto->buff_in_exp, &ftbytes))!=FT_OK) + { + presto->buff_in_exp=0; + return PRST_ERR; + } + + presto->total_in+=ftbytes; + + if (ftbytes!=presto->buff_in_exp) + { + presto->buff_in_exp=0; + return PRST_TIMEOUT; + } + + presto->buff_in_len=presto->buff_in_exp; + presto->buff_in_exp=0; + + return PRST_OK; +} + + +int presto_sendbyte(int data) +{ + if (data==EOF) return presto_flush(); + + if (presto->buff_out_pos < BUFFER_SIZE) + { + presto->buff_out[presto->buff_out_pos++]=(BYTE)data; + if (((data&0xC0)==0x40) || ((data&0xD0)==0xD0)) + presto->buff_in_exp++; + } + else return PRST_ERR; + + if (presto->buff_out_pos >= BUFFER_SIZE) return presto_flush(); + return PRST_OK; +} + + +int presto_getbyte(void) +{ + if (presto->buff_in_pos<presto->buff_in_len) + return presto->buff_in[presto->buff_in_pos++]; + + if (presto->buff_in_exp==0) return -1; + if (presto_flush()!=PRST_OK) return -1; + + if (presto->buff_in_pos<presto->buff_in_len) + return presto->buff_in[presto->buff_in_pos++]; + + return -1; +} + + +/* -------------------------------------------------------------------------- */ + + +int presto_bitq_out(int tms, int tdi, int tdo_req) +{ + unsigned char cmdparam; + + if (presto->jtag_tck==0) + { + presto_sendbyte(0xA4); + presto->jtag_tck=1; + } + + else if (!tdo_req && tms==presto->jtag_tms) + { + if (presto->jtag_tdi_count==0) presto->jtag_tdi_data=(tdi!=0); + else presto->jtag_tdi_data|=(tdi!=0)<<presto->jtag_tdi_count; + if (++presto->jtag_tdi_count==4) + { + presto->jtag_tdi_data|=(presto->jtag_tdi_count-1)<<4; + presto_sendbyte(presto->jtag_tdi_data); + presto->jtag_tdi_count=0; + } + return 0; + } + + if (presto->jtag_tdi_count) + { + presto->jtag_tdi_data|=(presto->jtag_tdi_count-1)<<4; + presto_sendbyte(presto->jtag_tdi_data); + presto->jtag_tdi_count=0; + } + + if (tdi) cmdparam=0x0B; + else cmdparam=0x0A; + + presto_sendbyte(0xC0|cmdparam); + + if (tms!=presto->jtag_tms) + { + if (tms) presto_sendbyte(0xEC); + else presto_sendbyte(0xE8); + presto->jtag_tms=tms; + } + + if (tdo_req) presto_sendbyte(0xD4|cmdparam); + else presto_sendbyte(0xC4|cmdparam); + + return 0; +} + + +int presto_bitq_flush(void) +{ + if (presto->jtag_tdi_count) + { + presto->jtag_tdi_data|=(presto->jtag_tdi_count-1)<<4; + presto_sendbyte(presto->jtag_tdi_data); + presto->jtag_tdi_count=0; + } + + presto_sendbyte(0xCA); + presto->jtag_tck=0; + + presto_sendbyte(0xA0); + + return presto_flush(); +} + + +int presto_bitq_in_rdy(void) +{ + if (presto->buff_in_pos>=presto->buff_in_len) return 0; + return presto->buff_in_len-presto->buff_in_pos; +} + + +int presto_bitq_in(void) +{ + if (presto->buff_in_pos>=presto->buff_in_len) return -1; + if (presto->buff_in[presto->buff_in_pos++]&0x08) return 1; + return 0; +} + + +int presto_bitq_sleep(unsigned long us) +{ + long waits; + + if (us>100000) + { + presto_bitq_flush(); + jtag_sleep(us); + return 0; + } + + waits=us/170+2; + while (waits--) presto_sendbyte(0x80); + + return 0; +} + + +int presto_bitq_reset(int trst, int srst) +{ + unsigned char cmd; + + cmd=0xE8; + if (presto->jtag_tms) cmd|=0x04; + + if (trst || srst) cmd|=0x02; + + presto_sendbyte(cmd); + return 0; +} + + +/* -------------------------------------------------------------------------- */ + + +int presto_jtag_speed(int speed) +{ + jtag_speed=speed; + return ERROR_OK; +} + + +char *presto_serial; + +int presto_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc == 1) + { + if (presto_serial) free(presto_serial); + presto_serial = strdup(args[0]); + } + else + { + ERROR("expected exactly one argument to presto_serial <serial-number>"); + } + + return ERROR_OK; +} + + +int presto_jtag_register_commands(struct command_context_s *cmd_ctx) +{ + register_command(cmd_ctx, NULL, "presto_serial", presto_handle_serial_command, + COMMAND_CONFIG, NULL); + return ERROR_OK; +} + + +int presto_jtag_init(void) +{ + if (presto_open(presto_serial)!=0) + { + presto_close(); + if (presto_serial!=NULL) ERROR("Cannot open PRESTO, serial number %s", presto_serial); + else ERROR("Cannot open PRESTO"); + return ERROR_JTAG_INIT_FAILED; + } + INFO("PRESTO open, serial number %s", presto->serial); + + bitq_interface=&presto_bitq; + return ERROR_OK; +} + + +int presto_jtag_quit(void) +{ + bitq_cleanup(); + presto_close(); + INFO("PRESTO closed"); + + if (presto_serial) + { + free(presto_serial); + presto_serial=NULL; + } + + return ERROR_OK; +} diff --git a/src/jtag/usbprog.c b/src/jtag/usbprog.c new file mode 100644 index 0000000..4f7cfdd --- /dev/null +++ b/src/jtag/usbprog.c @@ -0,0 +1,632 @@ +/*************************************************************************** + * Copyright (C) 2007 by Benedikt Sauter sauter@ixbat.de * + * based on Dominic Rath's usbprog.c * + * * + * 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 * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "replacements.h" + +#include "jtag.h" +#include <usb.h> + +/* system includes */ + +#include "log.h" + +#define VID 0x1781 +#define PID 0x0c62 + +int usbprog_execute_queue(void); +int usbprog_speed(int speed); +int usbprog_register_commands(struct command_context_s *cmd_ctx); +int usbprog_init(void); +int usbprog_quit(void); + + +void usbprog_end_state(enum tap_state state); +void usbprog_state_move(void); +void usbprog_path_move(pathmove_command_t *cmd); +void usbprog_runtest(int num_cycles); +void usbprog_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size); + +jtag_interface_t usbprog_interface = +{ + .name = "usbprog", + + .execute_queue = usbprog_execute_queue, + + .support_pathmove = 0, + + .speed = usbprog_speed, + .register_commands = usbprog_register_commands, + .init = usbprog_init, + .quit = usbprog_quit +}; + +// pins from avr +#define TDO_BIT 0 +#define TDI_BIT 3 +#define TCK_BIT 2 +#define TMS_BIT 1 + +#define UNKOWN_COMMAND 0x00 +#define PORT_DIRECTION 0x01 +#define PORT_SET 0x02 +#define PORT_GET 0x03 +#define PORT_SETBIT 0x04 +#define PORT_GETBIT 0x05 +#define WRITE_TDI 0x06 +#define READ_TDO 0x07 +#define WRITE_AND_READ 0x08 +#define WRITE_TMS 0x09 + +struct usbprog_jtag +{ + struct usb_dev_handle* usb_handle; +}; + +struct usbprog_jtag * usbprog_jtag_handle; + +struct usbprog_jtag* usbprog_jtag_open(); +void usbprog_jtag_close(struct usbprog_jtag *usbprog_jtag); +void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag); +unsigned char usbprog_jtag_message(struct usbprog_jtag *usbprog_jtag, char *msg, int msglen); + + +void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char * buffer, int size); +void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char * buffer, int size); +void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char * buffer, int size); +void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan); + +void usbprog_write(int tck, int tms, int tdi); +void usbprog_reset(int trst, int srst); + +void usbprog_jtag_set_direction(struct usbprog_jtag *usbprog_jtag, unsigned char direction); +void usbprog_jtag_write_slice(struct usbprog_jtag *usbprog_jtag,unsigned char value); +unsigned char usbprog_jtag_get_port(struct usbprog_jtag *usbprog_jtag); +void usbprog_jtag_set_bit(struct usbprog_jtag *usbprog_jtag,int bit, int value); +int usbprog_jtag_get_bit(struct usbprog_jtag *usbprog_jtag, int bit); + +int usbprog_speed(int speed) +{ + return ERROR_OK; +} + +int usbprog_register_commands(struct command_context_s *cmd_ctx) +{ + return ERROR_OK; +} + + +int usbprog_execute_queue(void) +{ + jtag_command_t *cmd = jtag_command_queue; /* currently processed command */ + int scan_size; + enum scan_type type; + u8 *buffer; + + while (cmd) + { + switch (cmd->type) + { + case JTAG_END_STATE: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("end_state: %i", cmd->cmd.end_state->end_state); +#endif + if (cmd->cmd.end_state->end_state != -1) + usbprog_end_state(cmd->cmd.end_state->end_state); + break; + case JTAG_RESET: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst); +#endif + if (cmd->cmd.reset->trst == 1) + { + cur_state = TAP_TLR; + } + usbprog_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst); + break; + case JTAG_RUNTEST: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state); +#endif + if (cmd->cmd.runtest->end_state != -1) + usbprog_end_state(cmd->cmd.runtest->end_state); + usbprog_runtest(cmd->cmd.runtest->num_cycles); + break; + case JTAG_STATEMOVE: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("statemove end in %i", cmd->cmd.statemove->end_state); +#endif + if (cmd->cmd.statemove->end_state != -1) + usbprog_end_state(cmd->cmd.statemove->end_state); + usbprog_state_move(); + break; + case JTAG_PATHMOVE: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, + cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]); +#endif + usbprog_path_move(cmd->cmd.pathmove); + break; + case JTAG_SCAN: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("scan end in %i", cmd->cmd.scan->end_state); +#endif + if (cmd->cmd.scan->end_state != -1) + usbprog_end_state(cmd->cmd.scan->end_state); + scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer); + type = jtag_scan_type(cmd->cmd.scan); + usbprog_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size); + if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK) + return ERROR_JTAG_QUEUE_FAILED; + if (buffer) + free(buffer); + break; + case JTAG_SLEEP: +#ifdef _DEBUG_JTAG_IO_ + DEBUG("sleep %i", cmd->cmd.sleep->us); +#endif + jtag_sleep(cmd->cmd.sleep->us); + break; + default: + ERROR("BUG: unknown JTAG command type encountered"); + exit(-1); + } + cmd = cmd->next; + } + + return ERROR_OK; +} + + +int usbprog_init(void) +{ + usbprog_jtag_handle = usbprog_jtag_open(); + + if(usbprog_jtag_handle==0){ + ERROR("Can't find USB JTAG Interface! Please check connection and permissions."); + return ERROR_JTAG_INIT_FAILED; + } + + INFO("USB JTAG Interface ready!"); + + usbprog_jtag_init(usbprog_jtag_handle); + usbprog_reset(0, 0); + usbprog_write(0, 0, 0); + + return ERROR_OK; +} + +int usbprog_quit(void) +{ + + return ERROR_OK; +} + +/*************** jtag execute commands **********************/ +void usbprog_end_state(enum tap_state state) +{ + if (tap_move_map[state] != -1) + end_state = state; + else + { + ERROR("BUG: %i is not a valid end state", state); + exit(-1); + } +} + + +void usbprog_state_move(void) { + + int i=0, tms=0; + u8 tms_scan = TAP_MOVE(cur_state, end_state); + + usbprog_jtag_write_tms(usbprog_jtag_handle,(char)tms_scan); + for (i = 0; i < 7; i++) + { + tms = (tms_scan >> i) & 1; + } + + // moved into firmware + // INFO("4"); + // koennte man in tms verlagern + //usbprog_write(0, tms, 0); + + cur_state = end_state; +} + + +void usbprog_path_move(pathmove_command_t *cmd) +{ + int num_states = cmd->num_states; + int state_count; + + state_count = 0; + while (num_states) + { + if (tap_transitions[cur_state].low == cmd->path[state_count]) + { + INFO("1"); + usbprog_write(0, 0, 0); + usbprog_write(1, 0, 0); + } + else if (tap_transitions[cur_state].high == cmd->path[state_count]) + { + INFO("2"); + usbprog_write(0, 1, 0); + usbprog_write(1, 1, 0); + } + else + { + ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]); + exit(-1); + } + + cur_state = cmd->path[state_count]; + state_count++; + num_states--; + } + + end_state = cur_state; +} + + +void usbprog_runtest(int num_cycles) +{ + int i; + + enum tap_state saved_end_state = end_state; + + /* only do a state_move when we're not already in RTI */ + if (cur_state != TAP_RTI) + { + usbprog_end_state(TAP_RTI); + //INFO("6"); + usbprog_state_move(); + } + + /* execute num_cycles */ + if(num_cycles>0) + { + INFO("5"); + usbprog_write(0, 0, 0); + } + for (i = 0; i < num_cycles; i++) + { + INFO("3"); + usbprog_write(1, 0, 0); + usbprog_write(0, 0, 0); + } + + /* finish in end_state */ + /* + usbprog_end_state(saved_end_state); + if (cur_state != end_state) + usbprog_state_move(); + */ +} + + + +void usbprog_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size) +{ + enum tap_state saved_end_state = end_state; + int bit_cnt; + + if (ir_scan) + usbprog_end_state(TAP_SI); + else + usbprog_end_state(TAP_SD); + + //INFO("7"); + usbprog_state_move(); + usbprog_end_state(saved_end_state); + + if (type == SCAN_OUT) { + usbprog_jtag_write_tdi(usbprog_jtag_handle,buffer, scan_size); + } + if (type == SCAN_IN) { + usbprog_jtag_read_tdo(usbprog_jtag_handle,buffer, scan_size); + } + if (type == SCAN_IO) { + usbprog_jtag_write_and_read(usbprog_jtag_handle,buffer, scan_size); + } + + if (ir_scan) + cur_state = TAP_PI; + else + cur_state = TAP_PD; + + if (cur_state != end_state) + usbprog_state_move(); +} + +/*************** jtag wrapper functions *********************/ + +void usbprog_write(int tck, int tms, int tdi) +{ + //INFO("->USBPROG SLICE"); + //DEBUG("slice tck %i tms %i tdi %i",tck,tms,tdi); + unsigned char output_value=0x00; + + if (tms) + output_value |= (1<<TMS_BIT); + if (tdi) + output_value |= (1<<TDI_BIT); + if (tck) + output_value |= (1<<TCK_BIT); + + usbprog_jtag_write_slice(usbprog_jtag_handle,output_value); +} + +/* (1) assert or (0) deassert reset lines */ +void usbprog_reset(int trst, int srst) +{ + //INFO("->USBPROG RESET"); + DEBUG("trst: %i, srst: %i", trst, srst); + + if(trst) + usbprog_jtag_set_bit(usbprog_jtag_handle,5,0); + else + usbprog_jtag_set_bit(usbprog_jtag_handle,5,1); + + if(srst) + usbprog_jtag_set_bit(usbprog_jtag_handle,4,0); + else + usbprog_jtag_set_bit(usbprog_jtag_handle,4,1); +} + + + +/*************** jtag lowlevel functions ********************/ + + +struct usbprog_jtag* usbprog_jtag_open() +{ + struct usb_bus *busses; + struct usb_dev_handle* usb_handle; + struct usb_bus *bus; + struct usb_device *dev; + + struct usbprog_jtag * tmp; + + tmp = (struct usbprog_jtag*)malloc(sizeof(struct usbprog_jtag)); + + + usb_init(); + usb_find_busses(); + usb_find_devices(); + + busses = usb_get_busses(); + + /* find usbprog_jtag device in usb bus */ + + for (bus = busses; bus; bus = bus->next){ + for (dev = bus->devices; dev; dev = dev->next){ + /* condition for sucessfully hit (too bad, I only check the vendor id)*/ + if (dev->descriptor.idVendor == VID && dev->descriptor.idProduct == PID) { + tmp->usb_handle = usb_open(dev); + usb_set_configuration (tmp->usb_handle,dev->config[0].bConfigurationValue); + usb_claim_interface(tmp->usb_handle, 0); + usb_set_altinterface(tmp->usb_handle,0); + return tmp; + } + } + } + return 0; +} + + +void usbprog_jtag_close(struct usbprog_jtag *usbprog_jtag) +{ + usb_close(usbprog_jtag->usb_handle); + free(usbprog_jtag); +} + + +unsigned char usbprog_jtag_message(struct usbprog_jtag *usbprog_jtag, char *msg, int msglen) +{ + int res = usb_bulk_write(usbprog_jtag->usb_handle,3,msg,msglen,100); + if(msg[0]==2) + return 1; + if(res == msglen) { + res = usb_bulk_read(usbprog_jtag->usb_handle,0x82, msg, 2, 100); + if (res > 0) + return (unsigned char)msg[1]; + else + return -1; + } + else + return -1; + return 0; +} + +void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag) +{ + usbprog_jtag_set_direction(usbprog_jtag, 0xFE); +} + + +void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char * buffer, int size) +{ + char tmp[64]; // fastes packet size for usb controller + int send_bits,bufindex=0,fillindex=0,i,j,complete=size,loops; + + char swap; + // 61 byte can be transfered (488 bit) + + while(size > 0) { + if(size > 488) { + send_bits = 488; + size = size - 488; + loops = 61; + } else { + send_bits = size; + loops = size/8; + loops++; + size = 0; + } + tmp[0] = WRITE_AND_READ; + tmp[1] = (char)(send_bits>>8); // high + tmp[2] = (char)(send_bits); // low + i=0; + + for(i=0;i < loops ;i++) { + tmp[3+i]=buffer[bufindex]; + bufindex++; + } + + usb_bulk_write(usbprog_jtag->usb_handle,3,tmp,64,1000); + + while(usb_bulk_read(usbprog_jtag->usb_handle,0x82, tmp, 64, 1000) < 1); + + for(i=0;i<loops ;i++) { + swap = tmp[3+i]; + buffer[fillindex++] = swap; + } + } +} + + +void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char * buffer, int size) +{ + char tmp[64]; // fastes packet size for usb controller + int send_bits,bufindex=0,fillindex=0,i,j,complete=size,loops; + + char swap; + // 61 byte can be transfered (488 bit) + + while(size > 0) { + if(size > 488) { + send_bits = 488; + size = size - 488; + loops = 61; + } else { + send_bits = size; + loops = size/8; + loops++; + size = 0; + } + tmp[0] = WRITE_AND_READ; + tmp[1] = (char)(send_bits>>8); // high + tmp[2] = (char)(send_bits); // low + + usb_bulk_write(usbprog_jtag->usb_handle,3,tmp,3,1000); + + while(usb_bulk_read(usbprog_jtag->usb_handle,0x82, tmp, 64, 10) < 1); + + for(i=0;i<loops ;i++) { + swap = tmp[3+i]; + buffer[fillindex++] = swap; + } + } +} + +void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char * buffer, int size) +{ + char tmp[64]; // fastes packet size for usb controller + int send_bits,bufindex=0,fillindex=0,i,j,complete=size,loops; + char swap; + // 61 byte can be transfered (488 bit) + while(size > 0) { + if(size > 488) { + send_bits = 488; + size = size - 488; + loops = 61; + } else { + send_bits = size; + loops = size/8; + //if(loops==0) + loops++; + size = 0; + } + tmp[0] = WRITE_TDI; + tmp[1] = (char)(send_bits>>8); // high + tmp[2] = (char)(send_bits); // low + i=0; + + for(i=0;i < loops ;i++) { + tmp[3+i]=buffer[bufindex]; + bufindex++; + } + usb_bulk_write(usbprog_jtag->usb_handle,3,tmp,64,1000); + } +} + + +void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan) +{ + char tmp[2]; // fastes packet size for usb controller + tmp[0] = WRITE_TMS; + tmp[1] = tms_scan; + usb_bulk_write(usbprog_jtag->usb_handle,3,tmp,2,1000); +} + + +void usbprog_jtag_set_direction(struct usbprog_jtag *usbprog_jtag, unsigned char direction) +{ + char tmp[2]; + tmp[0] = PORT_DIRECTION; + tmp[1] = (char)direction; + usbprog_jtag_message(usbprog_jtag,tmp,2); +} + +void usbprog_jtag_write_slice(struct usbprog_jtag *usbprog_jtag,unsigned char value) +{ + char tmp[2]; + tmp[0] = PORT_SET; + tmp[1] = (char)value; + usbprog_jtag_message(usbprog_jtag,tmp,2); +} + +unsigned char usbprog_jtag_get_port(struct usbprog_jtag *usbprog_jtag) +{ + char tmp[2]; + tmp[0] = PORT_GET; + tmp[1] = 0x00; + return usbprog_jtag_message(usbprog_jtag,tmp,2); +} + + +void usbprog_jtag_set_bit(struct usbprog_jtag *usbprog_jtag,int bit, int value) +{ + char tmp[3]; + tmp[0] = PORT_SETBIT; + tmp[1] = (char)bit; + if(value==1) + tmp[2] = 0x01; + else + tmp[2] = 0x00; + usbprog_jtag_message(usbprog_jtag,tmp,3); +} + +int usbprog_jtag_get_bit(struct usbprog_jtag *usbprog_jtag, int bit) +{ + char tmp[2]; + tmp[0] = PORT_GETBIT; + tmp[1] = (char)bit; + + if(usbprog_jtag_message(usbprog_jtag,tmp,2)>0) + return 1; + else + return 0; +} + |