/*************************************************************************** * Copyright (C) 2004, 2006 by Dominic Rath * * Dominic.Rath@gmx.de * * * * 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" #endif #include "replacements.h" /* project specific includes */ #include "log.h" #include "types.h" #include "jtag.h" #include "configuration.h" #include "time_support.h" /* system includes */ #include #include #include /* FT2232 access library includes */ #if BUILD_FT2232_FTD2XX == 1 #include #elif BUILD_FT2232_LIBFTDI == 1 #include #endif #include #include /* enable this to debug io latency */ #if 0 #define _DEBUG_USB_IO_ #endif /* enable this to debug communication */ #if 0 #define _DEBUG_USB_COMMS_ #endif int ft2232_execute_queue(void); int ft2232_speed(int speed); int ft2232_register_commands(struct command_context_s *cmd_ctx); int ft2232_init(void); int ft2232_quit(void); int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); int ft2232_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); int ft2232_handle_latency_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); char *ft2232_device_desc = NULL; char *ft2232_serial = NULL; char *ft2232_layout = NULL; unsigned char ft2232_latency = 2; #define MAX_USB_IDS 8 /* vid = pid = 0 marks the end of the list */ static u16 ft2232_vid[MAX_USB_IDS+1] = { 0x0403, 0 }; static u16 ft2232_pid[MAX_USB_IDS+1] = { 0x6010, 0 }; typedef struct ft2232_layout_s { char* name; int(*init)(void); void(*reset)(int trst, int srst); void(*blink)(void); } ft2232_layout_t; /* init procedures for supported layouts */ int usbjtag_init(void); int jtagkey_init(void); int olimex_jtag_init(void); int flyswatter_init(void); int turtle_init(void); int comstick_init(void); int stm32stick_init(void); /* reset procedures for supported layouts */ void usbjtag_reset(int trst, int srst); void jtagkey_reset(int trst, int srst); void olimex_jtag_reset(int trst, int srst); void flyswatter_reset(int trst, int srst); void turtle_reset(int trst, int srst); void comstick_reset(int trst, int srst); void stm32stick_reset(int trst, int srst); /* blink procedures for layouts that support a blinking led */ void olimex_jtag_blink(void); void turtle_jtag_blink(void); ft2232_layout_t ft2232_layouts[] = { {"usbjtag", usbjtag_init, usbjtag_reset, NULL}, {"jtagkey", jtagkey_init, jtagkey_reset, NULL}, {"jtagkey_prototype_v1", jtagkey_init, jtagkey_reset, NULL}, {"oocdlink", jtagkey_init, jtagkey_reset, NULL}, {"signalyzer", usbjtag_init, usbjtag_reset, NULL}, {"evb_lm3s811", usbjtag_init, usbjtag_reset, NULL}, {"olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink}, {"flyswatter", flyswatter_init, flyswatter_reset, NULL}, {"turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink}, {"comstick", comstick_init, comstick_reset, NULL}, {"stm32stick", stm32stick_init, stm32stick_reset, NULL}, {NULL, NULL, NULL}, }; static u8 nTRST, nTRSTnOE, nSRST, nSRSTnOE; static ft2232_layout_t *layout; static u8 low_output = 0x0; static u8 low_direction = 0x0; static u8 high_output = 0x0; static u8 high_direction = 0x0; #if BUILD_FT2232_FTD2XX == 1 static FT_HANDLE ftdih = NULL; #elif BUILD_FT2232_LIBFTDI == 1 static struct ftdi_context ftdic; #endif static u8 *ft2232_buffer = NULL; static int ft2232_buffer_size = 0; static int ft2232_read_pointer = 0; static int ft2232_expect_read = 0; #define FT2232_BUFFER_SIZE 131072 #define BUFFER_ADD ft2232_buffer[ft2232_buffer_size++] #define BUFFER_READ ft2232_buffer[ft2232_read_pointer++] jtag_interface_t ft2232_interface = { .name = "ft2232", .execute_queue = ft2232_execute_queue, .speed = ft2232_speed, .register_commands = ft2232_register_commands, .init = ft2232_init, .quit = ft2232_quit, }; int ft2232_write(u8 *buf, int size, u32* bytes_written) { #if BUILD_FT2232_FTD2XX == 1 FT_STATUS status; DWORD dw_bytes_written; if ((status = FT_Write(ftdih, buf, size, &dw_bytes_written)) != FT_OK) { *bytes_written = dw_bytes_written; LOG_ERROR("FT_Write returned: %lu", status); return ERROR_JTAG_DEVICE_ERROR; } else { *bytes_written = dw_bytes_written; return ERROR_OK; } #elif BUILD_FT2232_LIBFTDI == 1 int retval; if ((retval = ftdi_write_data(&ftdic, buf, size)) < 0) { *bytes_written = 0; LOG_ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic)); return ERROR_JTAG_DEVICE_ERROR; } else { *bytes_written = retval; return ERROR_OK; } #endif } int ft2232_read(u8* buf, int size, u32* bytes_read) { #if BUILD_FT2232_FTD2XX == 1 DWORD dw_bytes_read; FT_STATUS status; int timeout = 5; *bytes_read = 0; while ((*bytes_read < size) && timeout--) { if ((status = FT_Read(ftdih, buf + *bytes_read, size - *bytes_read, &dw_bytes_read)) != FT_OK) { *bytes_read = 0; LOG_ERROR("FT_Read returned: %lu", status); return ERROR_JTAG_DEVICE_ERROR; } *bytes_read += dw_bytes_read; } #elif BUILD_FT2232_LIBFTDI == 1 int retval; int timeout = 100; *bytes_read = 0; while ((*bytes_read < size) && timeout--) { if ((retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read)) < 0) { *bytes_read = 0; LOG_ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic)); return ERROR_JTAG_DEVICE_ERROR; } *bytes_read += retval; } #endif if (*bytes_read < size) { LOG_ERROR("couldn't read the requested number of bytes from FT2232 device (%i < %i)", *bytes_read, size); return ERROR_JTAG_DEVICE_ERROR; } return ERROR_OK; } int ft2232_speed(int speed) { u8 buf[3]; int retval; u32 bytes_written; buf[0] = 0x86; /* command "set divisor" */ buf[1] = speed & 0xff; /* valueL (0=6MHz, 1=3MHz, 2=2.0MHz, ...*/ buf[2] = (speed >> 8) & 0xff; /* valueH */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((retval = ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't set FT2232 TCK speed"); return retval; } jtag_speed = speed; return ERROR_OK; } int ft2232_register_commands(struct command_context_s *cmd_ctx) { register_command(cmd_ctx, NULL, "ft2232_device_desc", ft2232_handle_device_desc_command, COMMAND_CONFIG, NULL); register_command(cmd_ctx, NULL, "ft2232_serial", ft2232_handle_serial_command, COMMAND_CONFIG, NULL); register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command, COMMAND_CONFIG, NULL); register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command, COMMAND_CONFIG, NULL); register_command(cmd_ctx, NULL, "ft2232_latency", ft2232_handle_latency_command, COMMAND_CONFIG, NULL); return ERROR_OK; } void ft2232_end_state(enum tap_state state) { if (tap_move_map[state] != -1) end_state = state; else { LOG_ERROR("BUG: %i is not a valid end state", state); exit(-1); } } void ft2232_read_scan(enum scan_type type, u8* buffer, int scan_size) { int num_bytes = ((scan_size + 7) / 8); int bits_left = scan_size; int cur_byte = 0; while(num_bytes-- > 1) { buffer[cur_byte] = BUFFER_READ; cur_byte++; bits_left -= 8; } buffer[cur_byte] = 0x0; if (bits_left > 1) { buffer[cur_byte] = BUFFER_READ >> 1; } buffer[cur_byte] = (buffer[cur_byte] | ((BUFFER_READ & 0x02) << 6)) >> (8 - bits_left); } void ft2232_debug_dump_buffer(void) { int i; char line[256]; char *line_p = line; for (i = 0; i < ft2232_buffer_size; i++) { line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ft2232_buffer[i]); if (i % 16 == 15) { LOG_DEBUG("%s", line); line_p = line; } } if (line_p != line) LOG_DEBUG("%s", line); } int ft2232_send_and_recv(jtag_command_t *first, jtag_command_t *last) { jtag_command_t *cmd; u8 *buffer; int scan_size; enum scan_type type; int retval; u32 bytes_written; u32 bytes_read; #ifdef _DEBUG_USB_IO_ struct timeval start, inter, inter2, end; struct timeval d_inter, d_inter2, d_end; #endif #ifdef _DEBUG_USB_COMMS_ LOG_DEBUG("write buffer (size %i):", ft2232_buffer_size); ft2232_debug_dump_buffer(); #endif #ifdef _DEBUG_USB_IO_ gettimeofday(&start, NULL); #endif if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK) { LOG_ERROR("couldn't write MPSSE commands to FT2232"); exit(-1); } #ifdef _DEBUG_USB_IO_ gettimeofday(&inter, NULL); #endif if (ft2232_expect_read) { int timeout = 100; ft2232_buffer_size = 0; #ifdef _DEBUG_USB_IO_ gettimeofday(&inter2, NULL); #endif if ((retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read)) != ERROR_OK) { LOG_ERROR("couldn't read from FT2232"); exit(-1); } #ifdef _DEBUG_USB_IO_ gettimeofday(&end, NULL); timeval_subtract(&d_inter, &inter, &start); timeval_subtract(&d_inter2, &inter2, &start); timeval_subtract(&d_end, &end, &start); LOG_INFO("inter: %i.%i, inter2: %i.%i end: %i.%i", d_inter.tv_sec, d_inter.tv_usec, d_inter2.tv_sec, d_inter2.tv_usec, d_end.tv_sec, d_end.tv_usec); #endif ft2232_buffer_size = bytes_read; if (ft2232_expect_read != ft2232_buffer_size) { LOG_ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read, ft2232_buffer_size, 100 - timeout); ft2232_debug_dump_buffer(); exit(-1); } #ifdef _DEBUG_USB_COMMS_ LOG_DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ft2232_buffer_size); ft2232_debug_dump_buffer(); #endif } ft2232_expect_read = 0; ft2232_read_pointer = 0; /* return ERROR_OK, unless a jtag_read_buffer returns a failed check * that wasn't handled by a caller-provided error handler */ retval = ERROR_OK; cmd = first; while (cmd != last) { switch (cmd->type) { case JTAG_SCAN: type = jtag_scan_type(cmd->cmd.scan); if (type != SCAN_OUT) { scan_size = jtag_scan_size(cmd->cmd.scan); buffer = calloc(CEIL(scan_size, 8), 1); ft2232_read_scan(type, buffer, scan_size); if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK) retval = ERROR_JTAG_QUEUE_FAILED; free(buffer); } break; default: break; } cmd = cmd->next; } ft2232_buffer_size = 0; return retval; } void ft2232_add_pathmove(pathmove_command_t *cmd) { int num_states = cmd->num_states; u8 tms_byte; int state_count; state_count = 0; while (num_states) { tms_byte = 0x0; int bit_count = 0; int num_states_batch = num_states > 7 ? 7 : num_states; /* command "Clock Data to TMS/CS Pin (no Read)" */ BUFFER_ADD = 0x4b; /* number of states remaining */ BUFFER_ADD = num_states_batch - 1; while (num_states_batch--) { if (tap_transitions[cur_state].low == cmd->path[state_count]) buf_set_u32(&tms_byte, bit_count++, 1, 0x0); else if (tap_transitions[cur_state].high == cmd->path[state_count]) buf_set_u32(&tms_byte, bit_count++, 1, 0x1); else { LOG_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--; } BUFFER_ADD = tms_byte; } end_state = cur_state; } void ft2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size) { int num_bytes = (scan_size + 7) / 8; int bits_left = scan_size; int cur_byte = 0; int last_bit; if (!((!ir_scan && (cur_state == TAP_SD)) || (ir_scan && (cur_state == TAP_SI)))) { /* command "Clock Data to TMS/CS Pin (no Read)" */ BUFFER_ADD = 0x4b; /* scan 7 bit */ BUFFER_ADD = 0x6; /* TMS data bits */ if (ir_scan) { BUFFER_ADD = TAP_MOVE(cur_state, TAP_SI); cur_state = TAP_SI; } else { BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD); cur_state = TAP_SD; } /* LOG_DEBUG("added TMS scan (no read)"); */ } /* add command for complete bytes */ while (num_bytes > 1) { int thisrun_bytes; if (type == SCAN_IO) { /* Clock Data Bytes In and Out LSB First */ BUFFER_ADD = 0x39; /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */ } else if (type == SCAN_OUT) { /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */ BUFFER_ADD = 0x19; /* LOG_DEBUG("added TDI bytes (o)"); */ } else if (type == SCAN_IN) { /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */ BUFFER_ADD = 0x28; /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */ } thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1); num_bytes -= thisrun_bytes; BUFFER_ADD = (thisrun_bytes - 1) & 0xff; BUFFER_ADD = ((thisrun_bytes - 1) >> 8) & 0xff; if (type != SCAN_IN) { /* add complete bytes */ while(thisrun_bytes-- > 0) { BUFFER_ADD = buffer[cur_byte]; cur_byte++; bits_left -= 8; } } else /* (type == SCAN_IN) */ { bits_left -= 8 * (thisrun_bytes); } } /* the most signifcant bit is scanned during TAP movement */ if (type != SCAN_IN) last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1; else last_bit = 0; /* process remaining bits but the last one */ if (bits_left > 1) { if (type == SCAN_IO) { /* Clock Data Bits In and Out LSB First */ BUFFER_ADD = 0x3b; /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */ } else if (type == SCAN_OUT) { /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */ BUFFER_ADD = 0x1b; /* LOG_DEBUG("added TDI bits (o)"); */ } else if (type == SCAN_IN) { /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */ BUFFER_ADD = 0x2a; /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */ } BUFFER_ADD = bits_left - 2; if (type != SCAN_IN) BUFFER_ADD = buffer[cur_byte]; } if ((ir_scan && (end_state == TAP_SI)) || (!ir_scan && (end_state == TAP_SD))) { if (type == SCAN_IO) { /* Clock Data Bits In and Out LSB First */ BUFFER_ADD = 0x3b; /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */ } else if (type == SCAN_OUT) { /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */ BUFFER_ADD = 0x1b; /* LOG_DEBUG("added TDI bits (o)"); */ } else if (type == SCAN_IN) { /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */ BUFFER_ADD = 0x2a; /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */ } BUFFER_ADD = 0x0; BUFFER_ADD = last_bit; } else { /* move from Shift-IR/DR to end state */ if (type != SCAN_OUT) { /* Clock Data to TMS/CS Pin with Read */ BUFFER_ADD = 0x6b; /* LOG_DEBUG("added TMS scan (read)"); */ } else { /* Clock Data to TMS/CS Pin (no Read) */ BUFFER_ADD = 0x4b; /* LOG_DEBUG("added TMS scan (no read)"); */ } BUFFER_ADD = 0x6; BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7); cur_state = end_state; } } int ft2232_large_scan(scan_command_t *cmd, enum scan_type type, u8 *buffer, int scan_size) { int num_bytes = (scan_size + 7) / 8; int bits_left = scan_size; int cur_byte = 0; int last_bit; u8 *receive_buffer = malloc(CEIL(scan_size, 8)); u8 *receive_pointer = receive_buffer; u32 bytes_written; u32 bytes_read; int retval; int thisrun_read = 0; if (cmd->ir_scan) { LOG_ERROR("BUG: large IR scans are not supported"); exit(-1); } if (cur_state != TAP_SD) { /* command "Clock Data to TMS/CS Pin (no Read)" */ BUFFER_ADD = 0x4b; /* scan 7 bit */ BUFFER_ADD = 0x6; /* TMS data bits */ BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD); cur_state = TAP_SD; } if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK) { LOG_ERROR("couldn't write MPSSE commands to FT2232"); exit(-1); } LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written); ft2232_buffer_size = 0; /* add command for complete bytes */ while (num_bytes > 1) { int thisrun_bytes; if (type == SCAN_IO) { /* Clock Data Bytes In and Out LSB First */ BUFFER_ADD = 0x39; /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */ } else if (type == SCAN_OUT) { /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */ BUFFER_ADD = 0x19; /* LOG_DEBUG("added TDI bytes (o)"); */ } else if (type == SCAN_IN) { /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */ BUFFER_ADD = 0x28; /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */ } thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1); thisrun_read = thisrun_bytes; num_bytes -= thisrun_bytes; BUFFER_ADD = (thisrun_bytes - 1) & 0xff; BUFFER_ADD = ((thisrun_bytes - 1) >> 8) & 0xff; if (type != SCAN_IN) { /* add complete bytes */ while(thisrun_bytes-- > 0) { BUFFER_ADD = buffer[cur_byte]; cur_byte++; bits_left -= 8; } } else /* (type == SCAN_IN) */ { bits_left -= 8 * (thisrun_bytes); } if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK) { LOG_ERROR("couldn't write MPSSE commands to FT2232"); exit(-1); } LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written); ft2232_buffer_size = 0; if (type != SCAN_OUT) { if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK) { LOG_ERROR("couldn't read from FT2232"); exit(-1); } LOG_DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read); receive_pointer += bytes_read; } } thisrun_read = 0; /* the most signifcant bit is scanned during TAP movement */ if (type != SCAN_IN) last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1; else last_bit = 0; /* process remaining bits but the last one */ if (bits_left > 1) { if (type == SCAN_IO) { /* Clock Data Bits In and Out LSB First */ BUFFER_ADD = 0x3b; /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */ } else if (type == SCAN_OUT) { /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */ BUFFER_ADD = 0x1b; /* LOG_DEBUG("added TDI bits (o)"); */ } else if (type == SCAN_IN) { /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */ BUFFER_ADD = 0x2a; /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */ } BUFFER_ADD = bits_left - 2; if (type != SCAN_IN) BUFFER_ADD = buffer[cur_byte]; if (type != SCAN_OUT) thisrun_read += 2; } if (end_state == TAP_SD) { if (type == SCAN_IO) { /* Clock Data Bits In and Out LSB First */ BUFFER_ADD = 0x3b; /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */ } else if (type == SCAN_OUT) { /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */ BUFFER_ADD = 0x1b; /* LOG_DEBUG("added TDI bits (o)"); */ } else if (type == SCAN_IN) { /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */ BUFFER_ADD = 0x2a; /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */ } BUFFER_ADD = 0x0; BUFFER_ADD = last_bit; } else { /* move from Shift-IR/DR to end state */ if (type != SCAN_OUT) { /* Clock Data to TMS/CS Pin with Read */ BUFFER_ADD = 0x6b; /* LOG_DEBUG("added TMS scan (read)"); */ } else { /* Clock Data to TMS/CS Pin (no Read) */ BUFFER_ADD = 0x4b; /* LOG_DEBUG("added TMS scan (no read)"); */ } BUFFER_ADD = 0x6; BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7); cur_state = end_state; } if (type != SCAN_OUT) thisrun_read += 1; if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK) { LOG_ERROR("couldn't write MPSSE commands to FT2232"); exit(-1); } LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written); ft2232_buffer_size = 0; if (type != SCAN_OUT) { if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK) { LOG_ERROR("couldn't read from FT2232"); exit(-1); } LOG_DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read); receive_pointer += bytes_read; } return ERROR_OK; } int ft2232_predict_scan_out(int scan_size, enum scan_type type) { int predicted_size = 3; int num_bytes = (scan_size - 1) / 8; if (cur_state != TAP_SD) predicted_size += 3; if (type == SCAN_IN) /* only from device to host */ { /* complete bytes */ predicted_size += (CEIL(num_bytes, 65536)) * 3; /* remaining bits - 1 (up to 7) */ predicted_size += ((scan_size - 1) % 8) ? 2 : 0; } else /* host to device, or bidirectional */ { /* complete bytes */ predicted_size += num_bytes + (CEIL(num_bytes, 65536)) * 3; /* remaining bits -1 (up to 7) */ predicted_size += ((scan_size - 1) % 8) ? 3 : 0; } return predicted_size; } int ft2232_predict_scan_in(int scan_size, enum scan_type type) { int predicted_size = 0; if (type != SCAN_OUT) { /* complete bytes */ predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) - 1) : 0; /* remaining bits - 1 */ predicted_size += ((scan_size - 1) % 8) ? 1 : 0; /* last bit (from TMS scan) */ predicted_size += 1; } /* LOG_DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size); */ return predicted_size; } void usbjtag_reset(int trst, int srst) { if (trst == 1) { if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) low_direction |= nTRSTnOE; /* switch to output pin (output is low) */ else low_output &= ~nTRST; /* switch output low */ } else if (trst == 0) { if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) low_direction &= ~nTRSTnOE; /* switch to input pin (high-Z + internal and external pullup) */ else low_output |= nTRST; /* switch output high */ } if (srst == 1) { if (jtag_reset_config & RESET_SRST_PUSH_PULL) low_output &= ~nSRST; /* switch output low */ else low_direction |= nSRSTnOE; /* switch to output pin (output is low) */ } else if (srst == 0) { if (jtag_reset_config & RESET_SRST_PUSH_PULL) low_output |= nSRST; /* switch output high */ else low_direction &= ~nSRSTnOE; /* switch to input pin (high-Z) */ } /* command "set data bits low byte" */ BUFFER_ADD = 0x80; BUFFER_ADD = low_output; BUFFER_ADD = low_direction; } void jtagkey_reset(int trst, int srst) { if (trst == 1) { if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) high_output &= ~nTRSTnOE; else high_output &= ~nTRST; } else if (trst == 0) { if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) high_output |= nTRSTnOE; else high_output |= nTRST; } if (srst == 1) { if (jtag_reset_config & RESET_SRST_PUSH_PULL) high_output &= ~nSRST; else high_output &= ~nSRSTnOE; } else if (srst == 0) { if (jtag_reset_config & RESET_SRST_PUSH_PULL) high_output |= nSRST; else high_output |= nSRSTnOE; } /* command "set data bits high byte" */ BUFFER_ADD = 0x82; BUFFER_ADD = high_output; BUFFER_ADD = high_direction; LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction); } void olimex_jtag_reset(int trst, int srst) { if (trst == 1) { if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) high_output &= ~nTRSTnOE; else high_output &= ~nTRST; } else if (trst == 0) { if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) high_output |= nTRSTnOE; else high_output |= nTRST; } if (srst == 1) { high_output |= nSRST; } else if (srst == 0) { high_output &= ~nSRST; } /* command "set data bits high byte" */ BUFFER_ADD = 0x82; BUFFER_ADD = high_output; BUFFER_ADD = high_direction; LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction); } void flyswatter_reset(int trst, int srst) { if (trst == 1) { low_output &= ~nTRST; } else if (trst == 0) { low_output |= nTRST; } if (srst == 1) { low_output |= nSRST; } else if (srst == 0) { low_output &= ~nSRST; } /* command "set data bits low byte" */ BUFFER_ADD = 0x80; BUFFER_ADD = low_output; BUFFER_ADD = low_direction; LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction); } void turtle_reset(int trst, int srst) { trst = trst; if (srst == 1) { low_output |= nSRST; } else if (srst == 0) { low_output &= ~nSRST; } /* command "set data bits low byte" */ BUFFER_ADD = 0x80; BUFFER_ADD = low_output; BUFFER_ADD = low_direction; LOG_DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst, low_output, low_direction); } void comstick_reset(int trst, int srst) { if (trst == 1) { high_output &= ~nTRST; } else if (trst == 0) { high_output |= nTRST; } if (srst == 1) { high_output &= ~nSRST; } else if (srst == 0) { high_output |= nSRST; } /* command "set data bits high byte" */ BUFFER_ADD = 0x82; BUFFER_ADD = high_output; BUFFER_ADD = high_direction; LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction); } void stm32stick_reset(int trst, int srst) { if (trst == 1) { high_output &= ~nTRST; } else if (trst == 0) { high_output |= nTRST; } if (srst == 1) { low_output &= ~nSRST; } else if (srst == 0) { low_output |= nSRST; } /* command "set data bits low byte" */ BUFFER_ADD = 0x80; BUFFER_ADD = low_output; BUFFER_ADD = low_direction; /* command "set data bits high byte" */ BUFFER_ADD = 0x82; BUFFER_ADD = high_output; BUFFER_ADD = high_direction; LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction); } int ft2232_execute_queue() { jtag_command_t *cmd = jtag_command_queue; /* currently processed command */ jtag_command_t *first_unsent = cmd; /* next command that has to be sent */ u8 *buffer; int scan_size; /* size of IR or DR scan */ enum scan_type type; int i; int predicted_size = 0; int require_send = 0; int retval; /* return ERROR_OK, unless ft2232_send_and_recv reports a failed check * that wasn't handled by a caller-provided error handler */ retval = ERROR_OK; ft2232_buffer_size = 0; ft2232_expect_read = 0; /* blink, if the current layout has that feature */ if (layout->blink) layout->blink(); while (cmd) { switch(cmd->type) { case JTAG_END_STATE: if (cmd->cmd.end_state->end_state != -1) ft2232_end_state(cmd->cmd.end_state->end_state); break; case JTAG_RESET: /* only send the maximum buffer size that FT2232C can handle */ predicted_size = 3; if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE) { if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) retval = ERROR_JTAG_QUEUE_FAILED; require_send = 0; first_unsent = cmd; } if ((cmd->cmd.reset->trst == 1) || (cmd->cmd.reset->srst && (jtag_reset_config & RESET_SRST_PULLS_TRST))) { cur_state = TAP_TLR; } layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst); require_send = 1; #ifdef _DEBUG_JTAG_IO_ LOG_DEBUG("trst: %i, srst: %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst); #endif break; case JTAG_RUNTEST: /* only send the maximum buffer size that FT2232C can handle */ predicted_size = 0; if (cur_state != TAP_RTI) predicted_size += 3; predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7); if ((cmd->cmd.runtest->end_state != -1) && (cmd->cmd.runtest->end_state != TAP_RTI)) predicted_size += 3; if ((cmd->cmd.runtest->end_state == -1) && (end_state != TAP_RTI)) predicted_size += 3; if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE) { if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) retval = ERROR_JTAG_QUEUE_FAILED; require_send = 0; first_unsent = cmd; } if (cur_state != TAP_RTI) { /* command "Clock Data to TMS/CS Pin (no Read)" */ BUFFER_ADD = 0x4b; /* scan 7 bit */ BUFFER_ADD = 0x6; /* TMS data bits */ BUFFER_ADD = TAP_MOVE(cur_state, TAP_RTI); cur_state = TAP_RTI; require_send = 1; } i = cmd->cmd.runtest->num_cycles; while (i > 0) { /* command "Clock Data to TMS/CS Pin (no Read)" */ BUFFER_ADD = 0x4b; /* scan 7 bit */ BUFFER_ADD = (i > 7) ? 6 : (i - 1); /* TMS data bits */ BUFFER_ADD = 0x0; cur_state = TAP_RTI; i -= (i > 7) ? 7 : i; /* LOG_DEBUG("added TMS scan (no read)"); */ } if (cmd->cmd.runtest->end_state != -1) ft2232_end_state(cmd->cmd.runtest->end_state); if (cur_state != end_state) { /* command "Clock Data to TMS/CS Pin (no Read)" */ BUFFER_ADD = 0x4b; /* scan 7 bit */ BUFFER_ADD = 0x6; /* TMS data bits */ BUFFER_ADD = TAP_MOVE(cur_state, end_state); cur_state = end_state; /* LOG_DEBUG("added TMS scan (no read)"); */ } require_send = 1; #ifdef _DEBUG_JTAG_IO_ LOG_DEBUG("runtest: %i, end in %i", cmd->cmd.runtest->num_cycles, end_state); #endif break; case JTAG_STATEMOVE: /* only send the maximum buffer size that FT2232C can handle */ predicted_size = 3; if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE) { if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) retval = ERROR_JTAG_QUEUE_FAILED; require_send = 0; first_unsent = cmd; } if (cmd->cmd.statemove->end_state != -1) ft2232_end_state(cmd->cmd.statemove->end_state); /* command "Clock Data to TMS/CS Pin (no Read)" */ BUFFER_ADD = 0x4b; /* scan 7 bit */ BUFFER_ADD = 0x6; /* TMS data bits */ BUFFER_ADD = TAP_MOVE(cur_state, end_state); /* LOG_DEBUG("added TMS scan (no read)"); */ cur_state = end_state; require_send = 1; #ifdef _DEBUG_JTAG_IO_ LOG_DEBUG("statemove: %i", end_state); #endif break; case JTAG_PATHMOVE: /* only send the maximum buffer size that FT2232C can handle */ predicted_size = 3 * CEIL(cmd->cmd.pathmove->num_states, 7); if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE) { if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) retval = ERROR_JTAG_QUEUE_FAILED; require_send = 0; first_unsent = cmd; } ft2232_add_pathmove(cmd->cmd.pathmove); require_send = 1; #ifdef _DEBUG_JTAG_IO_ LOG_DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]); #endif break; case JTAG_SCAN: scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer); type = jtag_scan_type(cmd->cmd.scan); predicted_size = ft2232_predict_scan_out(scan_size, type); if ((predicted_size + 1) > FT2232_BUFFER_SIZE) { LOG_DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)"); /* unsent commands before this */ if (first_unsent != cmd) if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) retval = ERROR_JTAG_QUEUE_FAILED; /* current command */ if (cmd->cmd.scan->end_state != -1) ft2232_end_state(cmd->cmd.scan->end_state); ft2232_large_scan(cmd->cmd.scan, type, buffer, scan_size); require_send = 0; first_unsent = cmd->next; if (buffer) free(buffer); break; } else if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE) { LOG_DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)", first_unsent, cmd); if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) retval = ERROR_JTAG_QUEUE_FAILED; require_send = 0; first_unsent = cmd; } ft2232_expect_read += ft2232_predict_scan_in(scan_size, type); /* LOG_DEBUG("new read size: %i", ft2232_expect_read); */ if (cmd->cmd.scan->end_state != -1) ft2232_end_state(cmd->cmd.scan->end_state); ft2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size); require_send = 1; if (buffer) free(buffer); #ifdef _DEBUG_JTAG_IO_ LOG_DEBUG("%s scan, %i bit, end in %i", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, end_state); #endif break; case JTAG_SLEEP: if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) retval = ERROR_JTAG_QUEUE_FAILED; first_unsent = cmd->next; jtag_sleep(cmd->cmd.sleep->us); #ifdef _DEBUG_JTAG_IO_ LOG_DEBUG("sleep %i usec", cmd->cmd.sleep->us); #endif break; default: LOG_ERROR("BUG: unknown JTAG command type encountered"); exit(-1); } cmd = cmd->next; } if (require_send > 0) if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) retval = ERROR_JTAG_QUEUE_FAILED; return retval; } #if BUILD_FT2232_FTD2XX == 1 static int ft2232_init_ftd2xx(u16 vid, u16 pid, int more, int *try_more) { FT_STATUS status; DWORD openex_flags = 0; char *openex_string = NULL; u8 latency_timer; LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)", ft2232_layout, vid, pid); #if IS_WIN32 == 0 /* Add non-standard Vid/Pid to the linux driver */ if ((status = FT_SetVIDPID(vid, pid)) != FT_OK) { LOG_WARNING("couldn't add %4.4x:%4.4x", vid, pid); } #endif if (ft2232_device_desc && ft2232_serial) { LOG_WARNING("can't open by device description and serial number, giving precedence to serial"); ft2232_device_desc = NULL; } if (ft2232_device_desc) { openex_string = ft2232_device_desc; openex_flags = FT_OPEN_BY_DESCRIPTION; } else if (ft2232_serial) { openex_string = ft2232_serial; openex_flags = FT_OPEN_BY_SERIAL_NUMBER; } else { LOG_ERROR("neither device description nor serial number specified"); LOG_ERROR("please add \"ft2232_device_desc \" or \"ft2232_serial \" to your .cfg file"); return ERROR_JTAG_INIT_FAILED; } if ((status = FT_OpenEx(openex_string, openex_flags, &ftdih)) != FT_OK) { DWORD num_devices; if (more) { LOG_WARNING("unable to open ftdi device (trying more): %lu", status); *try_more = 1; return ERROR_JTAG_INIT_FAILED; } LOG_ERROR("unable to open ftdi device: %lu", status); status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY); if (status == FT_OK) { char **desc_array = malloc(sizeof(char*) * (num_devices + 1)); int i; for (i = 0; i < num_devices; i++) desc_array[i] = malloc(64); desc_array[num_devices] = NULL; status = FT_ListDevices(desc_array, &num_devices, FT_LIST_ALL | openex_flags); if (status == FT_OK) { LOG_ERROR("ListDevices: %lu\n", num_devices); for (i = 0; i < num_devices; i++) LOG_ERROR("%i: %s", i, desc_array[i]); } for (i = 0; i < num_devices; i++) free(desc_array[i]); free(desc_array); } else { LOG_ERROR("ListDevices: NONE\n"); } return ERROR_JTAG_INIT_FAILED; } if ((status = FT_SetLatencyTimer(ftdih, ft2232_latency)) != FT_OK) { LOG_ERROR("unable to set latency timer: %lu", status); return ERROR_JTAG_INIT_FAILED; } if ((status = FT_GetLatencyTimer(ftdih, &latency_timer)) != FT_OK) { LOG_ERROR("unable to get latency timer: %lu", status); return ERROR_JTAG_INIT_FAILED; } else { LOG_DEBUG("current latency timer: %i", latency_timer); } if ((status = FT_SetTimeouts(ftdih, 5000, 5000)) != FT_OK) { LOG_ERROR("unable to set timeouts: %lu", status); return ERROR_JTAG_INIT_FAILED; } if ((status = FT_SetBitMode(ftdih, 0x0b, 2)) != FT_OK) { LOG_ERROR("unable to enable bit i/o mode: %lu", status); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } static int ft2232_purge_ftd2xx(void) { FT_STATUS status; if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK) { LOG_ERROR("error purging ftd2xx device: %lu", status); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } #endif /* BUILD_FT2232_FTD2XX == 1 */ #if BUILD_FT2232_LIBFTDI == 1 static int ft2232_init_libftdi(u16 vid, u16 pid, int more, int *try_more) { u8 latency_timer; LOG_DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)", ft2232_layout, vid, pid); if (ftdi_init(&ftdic) < 0) return ERROR_JTAG_INIT_FAILED; /* context, vendor id, product id */ if (ftdi_usb_open_desc(&ftdic, vid, pid, ft2232_device_desc, ft2232_serial) < 0) { if (more) LOG_WARNING("unable to open ftdi device (trying more): %s", ftdic.error_str); else LOG_ERROR("unable to open ftdi device: %s", ftdic.error_str); *try_more = 1; return ERROR_JTAG_INIT_FAILED; } if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0) { LOG_ERROR("unable to select FT2232 channel A: %s", ftdic.error_str); return ERROR_JTAG_INIT_FAILED; } if (ftdi_usb_reset(&ftdic) < 0) { LOG_ERROR("unable to reset ftdi device"); return ERROR_JTAG_INIT_FAILED; } if (ftdi_set_latency_timer(&ftdic, ft2232_latency) < 0) { LOG_ERROR("unable to set latency timer"); return ERROR_JTAG_INIT_FAILED; } if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0) { LOG_ERROR("unable to get latency timer"); return ERROR_JTAG_INIT_FAILED; } else { LOG_DEBUG("current latency timer: %i", latency_timer); } ftdi_set_bitmode(&ftdic, 0x0b, 2); /* ctx, JTAG I/O mask */ return ERROR_OK; } static int ft2232_purge_libftdi(void) { if (ftdi_usb_purge_buffers(&ftdic) < 0) { LOG_ERROR("ftdi_purge_buffers: %s", ftdic.error_str); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } #endif /* BUILD_FT2232_LIBFTDI == 1 */ int ft2232_init(void) { u8 buf[1]; int retval; u32 bytes_written; ft2232_layout_t *cur_layout = ft2232_layouts; int i; if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0)) { ft2232_layout = "usbjtag"; LOG_WARNING("No ft2232 layout specified, using default 'usbjtag'"); } while (cur_layout->name) { if (strcmp(cur_layout->name, ft2232_layout) == 0) { layout = cur_layout; break; } cur_layout++; } if (!layout) { LOG_ERROR("No matching layout found for %s", ft2232_layout); return ERROR_JTAG_INIT_FAILED; } for (i = 0; 1; i++) { /* * "more indicates that there are more IDs to try, so we should * not print an error for an ID mismatch (but for anything * else, we should). * * try_more indicates that the error code returned indicates an * ID mismatch (and nothing else) and that we should proceeed * with the next ID pair. */ int more = ft2232_vid[i+1] || ft2232_pid[i+1]; int try_more = 0; #if BUILD_FT2232_FTD2XX == 1 retval = ft2232_init_ftd2xx(ft2232_vid[i], ft2232_pid[i], more, &try_more); #elif BUILD_FT2232_LIBFTDI == 1 retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i], more, &try_more); #endif if (retval >= 0) break; if (!more || !try_more) return retval; } ft2232_buffer_size = 0; ft2232_buffer = malloc(FT2232_BUFFER_SIZE); if (layout->init() != ERROR_OK) return ERROR_JTAG_INIT_FAILED; ft2232_speed(jtag_speed); buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */ if (((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK) || (bytes_written != 1)) { LOG_ERROR("couldn't write to FT2232 to disable loopback"); return ERROR_JTAG_INIT_FAILED; } #if BUILD_FT2232_FTD2XX == 1 return ft2232_purge_ftd2xx(); #elif BUILD_FT2232_LIBFTDI == 1 return ft2232_purge_libftdi(); #endif return ERROR_OK; } int usbjtag_init(void) { u8 buf[3]; u32 bytes_written; low_output = 0x08; low_direction = 0x0b; if (strcmp(ft2232_layout, "usbjtag") == 0) { nTRST = 0x10; nTRSTnOE = 0x10; nSRST = 0x40; nSRSTnOE = 0x40; } else if (strcmp(ft2232_layout, "signalyzer") == 0) { nTRST = 0x10; nTRSTnOE = 0x10; nSRST = 0x20; nSRSTnOE = 0x20; } else if (strcmp(ft2232_layout, "evb_lm3s811") == 0) { nTRST = 0x0; nTRSTnOE = 0x00; nSRST = 0x20; nSRSTnOE = 0x20; low_output = 0x88; low_direction = 0x8b; } else { LOG_ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout); return ERROR_JTAG_INIT_FAILED; } if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) { low_direction &= ~nTRSTnOE; /* nTRST input */ low_output &= ~nTRST; /* nTRST = 0 */ } else { low_direction |= nTRSTnOE; /* nTRST output */ low_output |= nTRST; /* nTRST = 1 */ } if (jtag_reset_config & RESET_SRST_PUSH_PULL) { low_direction |= nSRSTnOE; /* nSRST output */ low_output |= nSRST; /* nSRST = 1 */ } else { low_direction &= ~nSRSTnOE; /* nSRST input */ low_output &= ~nSRST; /* nSRST = 0 */ } /* initialize low byte for jtag */ buf[0] = 0x80; /* command "set data bits low byte" */ buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, xRST high) */ buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'USBJTAG' layout"); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } int jtagkey_init(void) { u8 buf[3]; u32 bytes_written; low_output = 0x08; low_direction = 0x1b; /* initialize low byte for jtag */ buf[0] = 0x80; /* command "set data bits low byte" */ buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */ buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); return ERROR_JTAG_INIT_FAILED; } if (strcmp(layout->name, "jtagkey") == 0) { nTRST = 0x01; nTRSTnOE = 0x4; nSRST = 0x02; nSRSTnOE = 0x08; } else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0) || (strcmp(layout->name, "oocdlink") == 0)) { nTRST = 0x02; nTRSTnOE = 0x1; nSRST = 0x08; nSRSTnOE = 0x04; } else { LOG_ERROR("BUG: jtagkey_init called for non jtagkey layout"); exit(-1); } high_output = 0x0; high_direction = 0x0f; if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) { high_output |= nTRSTnOE; high_output &= ~nTRST; } else { high_output &= ~nTRSTnOE; high_output |= nTRST; } if (jtag_reset_config & RESET_SRST_PUSH_PULL) { high_output &= ~nSRSTnOE; high_output |= nSRST; } else { high_output |= nSRSTnOE; high_output &= ~nSRST; } /* initialize high port */ buf[0] = 0x82; /* command "set data bits high byte" */ buf[1] = high_output; /* value */ buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } int olimex_jtag_init(void) { u8 buf[3]; u32 bytes_written; low_output = 0x08; low_direction = 0x1b; /* initialize low byte for jtag */ buf[0] = 0x80; /* command "set data bits low byte" */ buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */ buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); return ERROR_JTAG_INIT_FAILED; } nTRST = 0x01; nTRSTnOE = 0x4; nSRST = 0x02; nSRSTnOE = 0x00; /* no output enable for nSRST */ high_output = 0x0; high_direction = 0x0f; if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) { high_output |= nTRSTnOE; high_output &= ~nTRST; } else { high_output &= ~nTRSTnOE; high_output |= nTRST; } if (jtag_reset_config & RESET_SRST_PUSH_PULL) { LOG_ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD"); } else { high_output &= ~nSRST; } /* turn red LED on */ high_output |= 0x08; /* initialize high port */ buf[0] = 0x82; /* command "set data bits high byte" */ buf[1] = high_output; /* value */ buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } int flyswatter_init(void) { u8 buf[3]; u32 bytes_written; low_output = 0x18; low_direction = 0xfb; /* initialize low byte for jtag */ buf[0] = 0x80; /* command "set data bits low byte" */ buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */ buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE[12]=out, n[ST]srst=out */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout"); return ERROR_JTAG_INIT_FAILED; } nTRST = 0x10; nTRSTnOE = 0x0; /* not output enable for nTRST */ nSRST = 0x20; nSRSTnOE = 0x00; /* no output enable for nSRST */ high_output = 0x00; high_direction = 0x0c; /* turn red LED1 on, LED2 off */ high_output |= 0x08; /* initialize high port */ buf[0] = 0x82; /* command "set data bits high byte" */ buf[1] = high_output; /* value */ buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout"); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } int turtle_init(void) { u8 buf[3]; u32 bytes_written; low_output = 0x08; low_direction = 0x5b; /* initialize low byte for jtag */ buf[0] = 0x80; /* command "set data bits low byte" */ buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */ buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout"); return ERROR_JTAG_INIT_FAILED; } nSRST = 0x40; high_output = 0x00; high_direction = 0x0C; /* initialize high port */ buf[0] = 0x82; /* command "set data bits high byte" */ buf[1] = high_output; buf[2] = high_direction; LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout"); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } int comstick_init(void) { u8 buf[3]; u32 bytes_written; low_output = 0x08; low_direction = 0x0b; /* initialize low byte for jtag */ buf[0] = 0x80; /* command "set data bits low byte" */ buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */ buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout"); return ERROR_JTAG_INIT_FAILED; } nTRST = 0x01; nTRSTnOE = 0x00; /* no output enable for nTRST */ nSRST = 0x02; nSRSTnOE = 0x00; /* no output enable for nSRST */ high_output = 0x03; high_direction = 0x03; /* initialize high port */ buf[0] = 0x82; /* command "set data bits high byte" */ buf[1] = high_output; buf[2] = high_direction; LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout"); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } int stm32stick_init(void) { u8 buf[3]; u32 bytes_written; low_output = 0x88; low_direction = 0x8b; /* initialize low byte for jtag */ buf[0] = 0x80; /* command "set data bits low byte" */ buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */ buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout"); return ERROR_JTAG_INIT_FAILED; } nTRST = 0x01; nTRSTnOE = 0x00; /* no output enable for nTRST */ nSRST = 0x80; nSRSTnOE = 0x00; /* no output enable for nSRST */ high_output = 0x01; high_direction = 0x03; /* initialize high port */ buf[0] = 0x82; /* command "set data bits high byte" */ buf[1] = high_output; buf[2] = high_direction; LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) { LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout"); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } void olimex_jtag_blink(void) { /* Olimex ARM-USB-OCD has a LED connected to ACBUS3 * ACBUS3 is bit 3 of the GPIOH port */ if (high_output & 0x08) { /* set port pin high */ high_output &= 0x07; } else { /* set port pin low */ high_output |= 0x08; } BUFFER_ADD = 0x82; BUFFER_ADD = high_output; BUFFER_ADD = high_direction; } void turtle_jtag_blink(void) { /* * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3 */ if (high_output & 0x08) { high_output = 0x04; } else { high_output = 0x08; } BUFFER_ADD = 0x82; BUFFER_ADD = high_output; BUFFER_ADD = high_direction; } int ft2232_quit(void) { #if BUILD_FT2232_FTD2XX == 1 FT_STATUS status; status = FT_Close(ftdih); #elif BUILD_FT2232_LIBFTDI == 1 ftdi_disable_bitbang(&ftdic); ftdi_usb_close(&ftdic); ftdi_deinit(&ftdic); #endif free(ft2232_buffer); ft2232_buffer = NULL; return ERROR_OK; } int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { if (argc == 1) { ft2232_device_desc = strdup(args[0]); } else { LOG_ERROR("expected exactly one argument to ft2232_device_desc "); } return ERROR_OK; } int ft2232_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { if (argc == 1) { ft2232_serial = strdup(args[0]); } else { LOG_ERROR("expected exactly one argument to ft2232_serial "); } return ERROR_OK; } int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { if (argc == 0) return ERROR_OK; ft2232_layout = malloc(strlen(args[0]) + 1); strcpy(ft2232_layout, args[0]); return ERROR_OK; } int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { int i; if (argc > MAX_USB_IDS*2) { LOG_WARNING("ignoring extra IDs in ft2232_vid_pid " "(maximum is %d pairs)", MAX_USB_IDS); argc = MAX_USB_IDS*2; } if (argc < 2 || (argc & 1)) { LOG_WARNING("incomplete ft2232_vid_pid configuration directive"); if (argc < 2) return ERROR_OK; } for (i = 0; i+1 < argc; i += 2) { ft2232_vid[i >> 1] = strtol(args[i], NULL, 0); ft2232_pid[i >> 1] = strtol(args[i+1], NULL, 0); } /* * Explicitly terminate, in case there are multiples instances of * ft2232_vid_pid. */ ft2232_vid[i >> 1] = ft2232_pid[i >> 1] = 0; return ERROR_OK; } int ft2232_handle_latency_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { if (argc == 1) { ft2232_latency = atoi(args[0]); } else { LOG_ERROR("expected exactly one argument to ft2232_latency "); } return ERROR_OK; }