X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fjtag%2Fft2232.c;h=4cba9d908560453b472005d50d46c151619c4c9d;hp=32b4c9278f2830b82b9d5118fe34a1e9ab346538;hb=f130f95d455332a114e468b3f77a203e3fdf4aee;hpb=c62e5b4c233d5ee0bc2066728a5b432f481ad7fe diff --git a/src/jtag/ft2232.c b/src/jtag/ft2232.c index 32b4c9278f..4cba9d9085 100644 --- a/src/jtag/ft2232.c +++ b/src/jtag/ft2232.c @@ -1,44 +1,60 @@ /*************************************************************************** - * 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. * - ***************************************************************************/ +* Copyright (C) 2004, 2006 by Dominic Rath * +* Dominic.Rath@gmx.de * +* * +* Copyright (C) 2008 by Spencer Oliver * +* spen@spen-soft.co.uk * +* * +* Copyright (C) 2009 by SoftPLC Corporation. http://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 * +* 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. * +***************************************************************************/ + + +/* This code uses information contained in the MPSSE specification which was + * found here: + * http://www.ftdichip.com/Documents/AppNotes/AN2232C-01_MPSSE_Cmnd.pdf + * Hereafter this is called the "MPSSE Spec". + * + * The datasheet for the ftdichip.com's FT2232D part is here: + * http://www.ftdichip.com/Documents/DataSheets/DS_FT2232D.pdf + */ + + #ifdef HAVE_CONFIG_H #include "config.h" #endif +/* project specific includes */ +#include "interface.h" +#include "commands.h" +#include "time_support.h" + #if IS_CYGWIN == 1 -#include "windows.h" -#undef ERROR +#include #endif -#include "replacements.h" - -/* project specific includes */ -#include "log.h" -#include "types.h" -#include "jtag.h" -#include "configuration.h" -#include "time_support.h" +#include -/* system includes */ -#include -#include -#include +#if (BUILD_FT2232_FTD2XX == 1 && BUILD_FT2232_LIBFTDI == 1) +#error "BUILD_FT2232_FTD2XX && BUILD_FT2232_LIBFTDI are mutually exclusive" +#elif (BUILD_FT2232_FTD2XX != 1 && BUILD_FT2232_LIBFTDI != 1) +#error "BUILD_FT2232_FTD2XX || BUILD_FT2232_LIBFTDI must be chosen" +#endif /* FT2232 access library includes */ #if BUILD_FT2232_FTD2XX == 1 @@ -47,456 +63,743 @@ #include #endif -#include -#include - -/* enable this to debug io latency - */ -#if 0 -#define _DEBUG_USB_IO_ -#endif - -/* enable this to debug communication +/* max TCK for the high speed devices 30000 kHz */ +#define FTDI_2232H_4232H_MAX_TCK 30000 + +static int ft2232_execute_queue(void); + +static int ft2232_speed(int speed); +static int ft2232_speed_div(int speed, int* khz); +static int ft2232_khz(int khz, int* jtag_speed); +static int ft2232_register_commands(struct command_context_s* cmd_ctx); +static int ft2232_init(void); +static int ft2232_quit(void); + +static int ft2232_handle_device_desc_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc); +static int ft2232_handle_serial_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc); +static int ft2232_handle_layout_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc); +static int ft2232_handle_vid_pid_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc); +static int ft2232_handle_latency_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc); + + +/** + * Send out \a num_cycles on the TCK line while the TAP(s) are in a + * stable state. Calling code must ensure that current state is stable, + * that verification is not done in here. + * + * @param num_cycles The number of clocks cycles to send. + * @param cmd The command to send. + * + * @returns ERROR_OK on success, or ERROR_JTAG_QUEUE_FAILED on failure. */ -#if 0 -#define _DEBUG_USB_COMMS_ -#endif - -int ft2232_execute_queue(void); +static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd); -int ft2232_speed(int speed); -int ft2232_register_commands(struct command_context_s *cmd_ctx); -int ft2232_init(void); -int ft2232_quit(void); +/* max TCK for the high speed devices 30000 kHz */ +#define FTDI_2232H_4232H_MAX_TCK 30000 -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); +static char * ft2232_device_desc_A = NULL; +static char* ft2232_device_desc = NULL; +static char* ft2232_serial = NULL; +static char* ft2232_layout = NULL; +static uint8_t ft2232_latency = 2; +static unsigned ft2232_max_tck = 6000; -char *ft2232_device_desc = NULL; -char *ft2232_serial = NULL; -char *ft2232_layout = NULL; -#define MAX_USB_IDS 8 +#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 }; +static uint16_t ft2232_vid[MAX_USB_IDS + 1] = { 0x0403, 0 }; +static uint16_t 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); + 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 m5960_init(void); -int turtle_init(void); +static int usbjtag_init(void); +static int jtagkey_init(void); +static int olimex_jtag_init(void); +static int flyswatter_init(void); +static int turtle_init(void); +static int comstick_init(void); +static int stm32stick_init(void); +static int axm0432_jtag_init(void); +static int sheevaplug_init(void); +static int icebear_jtag_init(void); +static int cortino_jtag_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 m5960_reset(int trst, int srst); -void turtle_reset(int trst, int srst); +static void usbjtag_reset(int trst, int srst); +static void jtagkey_reset(int trst, int srst); +static void olimex_jtag_reset(int trst, int srst); +static void flyswatter_reset(int trst, int srst); +static void turtle_reset(int trst, int srst); +static void comstick_reset(int trst, int srst); +static void stm32stick_reset(int trst, int srst); +static void axm0432_jtag_reset(int trst, int srst); +static void sheevaplug_reset(int trst, int srst); +static void icebear_jtag_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}, - {"m5960", m5960_init, m5960_reset, NULL}, - {"turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink}, - {NULL, NULL, NULL}, +static void olimex_jtag_blink(void); +static void flyswatter_jtag_blink(void); +static void turtle_jtag_blink(void); + +static const 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 }, + { "luminary_icdi", usbjtag_init, usbjtag_reset, NULL }, + { "olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink }, + { "flyswatter", flyswatter_init, flyswatter_reset, flyswatter_jtag_blink }, + { "turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink }, + { "comstick", comstick_init, comstick_reset, NULL }, + { "stm32stick", stm32stick_init, stm32stick_reset, NULL }, + { "axm0432_jtag", axm0432_jtag_init, axm0432_jtag_reset, NULL }, + { "sheevaplug", sheevaplug_init, sheevaplug_reset, NULL }, + { "icebear", icebear_jtag_init, icebear_jtag_reset, NULL }, + { "cortino", cortino_jtag_init, comstick_reset, NULL }, + { NULL, NULL, NULL, NULL }, }; -static u8 nTRST, nTRSTnOE, nSRST, nSRSTnOE; +static uint8_t 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; +static const ft2232_layout_t *layout; +static uint8_t low_output = 0x0; +static uint8_t low_direction = 0x0; +static uint8_t high_output = 0x0; +static uint8_t high_direction = 0x0; #if BUILD_FT2232_FTD2XX == 1 -static FT_HANDLE ftdih = NULL; +static FT_HANDLE ftdih = NULL; +static FT_DEVICE ftdi_device = 0; #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, - - .support_pathmove = 1, - - .speed = ft2232_speed, - .register_commands = ft2232_register_commands, - .init = ft2232_init, - .quit = ft2232_quit, + +static jtag_command_t* first_unsent; /* next command that has to be sent */ +static int require_send; + + +/* http://urjtag.wiki.sourceforge.net/Cable + FT2232 says: + + "There is a significant difference between libftdi and libftd2xx. The latter + one allows to schedule up to 64*64 bytes of result data while libftdi fails + with more than 4*64. As a consequence, the FT2232 driver is forced to + perform around 16x more USB transactions for long command streams with TDO + capture when running with libftdi." + + No idea how we get + #define FT2232_BUFFER_SIZE 131072 + a comment would have been nice. +*/ + +#define FT2232_BUFFER_SIZE 131072 + +static uint8_t* ft2232_buffer = NULL; +static int ft2232_buffer_size = 0; +static int ft2232_read_pointer = 0; +static int ft2232_expect_read = 0; + +/** + * Function buffer_write + * writes a byte into the byte buffer, "ft2232_buffer", which must be sent later. + * @param val is the byte to send. + */ +static inline void buffer_write(uint8_t val) +{ + assert(ft2232_buffer); + assert((unsigned) ft2232_buffer_size < (unsigned) FT2232_BUFFER_SIZE); + ft2232_buffer[ft2232_buffer_size++] = val; +} + +/** + * Function buffer_read + * returns a byte from the byte buffer. + */ +static inline uint8_t buffer_read(void) +{ + assert(ft2232_buffer); + assert(ft2232_read_pointer < ft2232_buffer_size); + return ft2232_buffer[ft2232_read_pointer++]; +} + + +/** + * Clocks out \a bit_count bits on the TMS line, starting with the least + * significant bit of tms_bits and progressing to more significant bits. + * Rigorous state transition logging is done here via tap_set_state(). + * + * @param mpsse_cmd One of the MPSSE TMS oriented commands such as + * 0x4b or 0x6b. See the MPSSE spec referenced above for their + * functionality. The MPSSE command "Clock Data to TMS/CS Pin (no Read)" + * is often used for this, 0x4b. + * + * @param tms_bits Holds the sequence of bits to send. + * @param tms_count Tells how many bits in the sequence. + * @param tdi_bit A single bit to pass on to TDI before the first TCK + * cycle and held static for the duration of TMS clocking. + * + * See the MPSSE spec referenced above. + */ +static void clock_tms(uint8_t mpsse_cmd, int tms_bits, int tms_count, bool tdi_bit) +{ + uint8_t tms_byte; + int i; + int tms_ndx; /* bit index into tms_byte */ + + assert(tms_count > 0); + +// LOG_DEBUG("mpsse cmd=%02x, tms_bits = 0x%08x, bit_count=%d", mpsse_cmd, tms_bits, tms_count); + + for (tms_byte = tms_ndx = i = 0; i < tms_count; ++i, tms_bits>>=1) + { + bool bit = tms_bits & 1; + + if (bit) + tms_byte |= (1 << tms_ndx); + + /* always do state transitions in public view */ + tap_set_state(tap_state_transition(tap_get_state(), bit)); + + /* we wrote a bit to tms_byte just above, increment bit index. if bit was zero + also increment. + */ + ++tms_ndx; + + if (tms_ndx == 7 || i == tms_count-1) + { + buffer_write(mpsse_cmd); + buffer_write(tms_ndx - 1); + + /* Bit 7 of the byte is passed on to TDI/DO before the first TCK/SK of + TMS/CS and is held static for the duration of TMS/CS clocking. + */ + buffer_write(tms_byte | (tdi_bit << 7)); + } + } +} + + +/** + * Function get_tms_buffer_requirements + * returns what clock_tms() will consume if called with + * same \a bit_count. + */ +static inline int get_tms_buffer_requirements(int bit_count) +{ + return ((bit_count + 6)/7) * 3; +} + + +/** + * Function move_to_state + * moves the TAP controller from the current state to a + * \a goal_state through a path given by tap_get_tms_path(). State transition + * logging is performed by delegation to clock_tms(). + * + * @param goal_state is the destination state for the move. + */ +static void move_to_state(tap_state_t goal_state) +{ + tap_state_t start_state = tap_get_state(); + + /* goal_state is 1/2 of a tuple/pair of states which allow convenient + lookup of the required TMS pattern to move to this state from the + start state. + */ + + /* do the 2 lookups */ + int tms_bits = tap_get_tms_path(start_state, goal_state); + int tms_count = tap_get_tms_path_len(start_state, goal_state); + + DEBUG_JTAG_IO("start=%s goal=%s", tap_state_name(start_state), tap_state_name(goal_state)); + + clock_tms(0x4b, tms_bits, tms_count, 0); +} + + +jtag_interface_t ft2232_interface = +{ + .name = "ft2232", + .execute_queue = ft2232_execute_queue, + .speed = ft2232_speed, + .speed_div = ft2232_speed_div, + .khz = ft2232_khz, + .register_commands = ft2232_register_commands, + .init = ft2232_init, + .quit = ft2232_quit, }; -int ft2232_write(u8 *buf, int size, u32* bytes_written) +static int ft2232_write(uint8_t* buf, int size, uint32_t* bytes_written) { #if BUILD_FT2232_FTD2XX == 1 FT_STATUS status; - DWORD dw_bytes_written; + DWORD dw_bytes_written; if ((status = FT_Write(ftdih, buf, size, &dw_bytes_written)) != FT_OK) { *bytes_written = dw_bytes_written; - ERROR("FT_Write returned: %lu", status); + LOG_ERROR("FT_Write returned: %lu", status); return ERROR_JTAG_DEVICE_ERROR; } else { *bytes_written = dw_bytes_written; - return ERROR_OK; + return ERROR_OK; } #elif BUILD_FT2232_LIBFTDI == 1 int retval; if ((retval = ftdi_write_data(&ftdic, buf, size)) < 0) { *bytes_written = 0; - ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic)); + LOG_ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic)); return ERROR_JTAG_DEVICE_ERROR; } else { *bytes_written = retval; - return ERROR_OK; + return ERROR_OK; } #endif } -int ft2232_read(u8* buf, int size, u32* bytes_read) + +static int ft2232_read(uint8_t* buf, uint32_t size, uint32_t* bytes_read) { #if BUILD_FT2232_FTD2XX == 1 - DWORD dw_bytes_read; + DWORD dw_bytes_read; FT_STATUS status; - int timeout = 5; + int timeout = 5; *bytes_read = 0; while ((*bytes_read < size) && timeout--) { - if ((status = FT_Read(ftdih, buf, size, &dw_bytes_read)) != FT_OK) + if ((status = FT_Read(ftdih, buf + *bytes_read, size - + *bytes_read, &dw_bytes_read)) != FT_OK) { - *bytes_read = 0; - ERROR("FT_Read returned: %lu", status); + *bytes_read = 0; + LOG_ERROR("FT_Read returned: %lu", status); return ERROR_JTAG_DEVICE_ERROR; } - *bytes_read += dw_bytes_read; + *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; - ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic)); + LOG_ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic)); return ERROR_JTAG_DEVICE_ERROR; } *bytes_read += retval; } + #endif if (*bytes_read < size) { - ERROR("couldn't read the requested number of bytes from FT2232 device (%i < %i)", *bytes_read, size); + LOG_ERROR("couldn't read the requested number of bytes from FT2232 device (%i < %i)", + (unsigned int)(*bytes_read), + (unsigned int)size); return ERROR_JTAG_DEVICE_ERROR; } - + + return ERROR_OK; +} + +#ifdef BUILD_FTD2XX_HIGHSPEED +static bool ft2232_device_is_highspeed(void) +{ + return (ftdi_device == FT_DEVICE_2232H) || (ftdi_device == FT_DEVICE_4232H); +} + +static int ft2232_adaptive_clocking(int speed) +{ + bool use_adaptive_clocking = FALSE; + if (0 == speed) + { + if (ft2232_device_is_highspeed()) + use_adaptive_clocking = TRUE; + else + { + LOG_ERROR("ft2232 device %lu does not support RTCK", ftdi_device); + return ERROR_OK; + } + } + + uint8_t buf = use_adaptive_clocking ? 0x96 : 0x97; + LOG_DEBUG("%2.2x", buf); + + uint32_t bytes_written; + int retval = ft2232_write(&buf, 1, &bytes_written); + if (ERROR_OK != retval || bytes_written != 1) + { + LOG_ERROR("unable to set adative clocking: %d", retval); + return retval; + } + return ERROR_OK; } +#else +static int ft2232_adaptive_clocking(int speed) +{ + // not implemented on low-speed devices + return speed ? ERROR_OK : -1234; +} +#endif -int ft2232_speed(int speed) +static int ft2232_speed(int speed) { - u8 buf[3]; + uint8_t buf[3]; int retval; - u32 bytes_written; + uint32_t bytes_written; + + ft2232_adaptive_clocking(speed); - buf[0] = 0x86; /* command "set divisor" */ - buf[1] = speed & 0xff; /* valueL (0=6MHz, 1=3MHz, 2=1.5MHz, ...*/ - buf[2] = (speed >> 8) & 0xff; /* valueH */ - - DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); + 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)) { - ERROR("couldn't set FT2232 TCK speed"); + LOG_ERROR("couldn't set FT2232 TCK speed"); return retval; } - + + return ERROR_OK; +} + + +static int ft2232_speed_div(int speed, int* khz) +{ + /* Take a look in the FT2232 manual, + * AN2232C-01 Command Processor for + * MPSSE and MCU Host Bus. Chapter 3.8 */ + + *khz = ft2232_max_tck / (1 + speed); + + return ERROR_OK; +} + + +static int ft2232_khz(int khz, int* jtag_speed) +{ + if (khz == 0) + { +#ifdef BUILD_FTD2XX_HIGHSPEED + *jtag_speed = 0; + return ERROR_OK; +#else + LOG_DEBUG("RCLK not supported"); + LOG_DEBUG("If you have a high-speed FTDI device, then " + "OpenOCD may be built with --enable-ftd2xx-highspeed."); + return ERROR_FAIL; +#endif + } + + /* Take a look in the FT2232 manual, + * AN2232C-01 Command Processor for + * MPSSE and MCU Host Bus. Chapter 3.8 + * + * We will calc here with a multiplier + * of 10 for better rounding later. */ + + /* Calc speed, (ft2232_max_tck / khz) - 1 */ + /* Use 65000 for better rounding */ + *jtag_speed = ((ft2232_max_tck*10) / khz) - 10; + + /* Add 0.9 for rounding */ + *jtag_speed += 9; + + /* Calc real speed */ + *jtag_speed = *jtag_speed / 10; + + /* Check if speed is greater than 0 */ + if (*jtag_speed < 0) + { + *jtag_speed = 0; + } + + /* Check max value */ + if (*jtag_speed > 0xFFFF) + { + *jtag_speed = 0xFFFF; + } + return ERROR_OK; } -int ft2232_register_commands(struct command_context_s *cmd_ctx) + +static 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); + COMMAND_CONFIG, "the USB device description of the FTDI FT2232 device"); register_command(cmd_ctx, NULL, "ft2232_serial", ft2232_handle_serial_command, - COMMAND_CONFIG, NULL); + COMMAND_CONFIG, "the serial number of the FTDI FT2232 device"); register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command, - COMMAND_CONFIG, NULL); + COMMAND_CONFIG, "the layout of the FT2232 GPIO signals used to control output-enables and reset signals"); register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command, - COMMAND_CONFIG, NULL); + COMMAND_CONFIG, "the vendor ID and product ID of the FTDI FT2232 device"); + register_command(cmd_ctx, NULL, "ft2232_latency", ft2232_handle_latency_command, + COMMAND_CONFIG, "set the FT2232 latency timer to a new value"); return ERROR_OK; } -void ft2232_end_state(state) + +static void ft2232_end_state(tap_state_t state) { - if (tap_move_map[state] != -1) - end_state = state; + if (tap_is_state_stable(state)) + tap_set_end_state(state); else { - ERROR("BUG: %i is not a valid end state", state); + LOG_ERROR("BUG: %s is not a stable end state", tap_state_name(state)); exit(-1); } } -void ft2232_read_scan(enum scan_type type, u8* buffer, int scan_size) +static void ft2232_read_scan(enum scan_type type, uint8_t* buffer, int scan_size) { - int num_bytes = ((scan_size + 7) / 8); + int num_bytes = (scan_size + 7) / 8; int bits_left = scan_size; - int cur_byte = 0; + int cur_byte = 0; - while(num_bytes-- > 1) + while (num_bytes-- > 1) { - buffer[cur_byte] = BUFFER_READ; - cur_byte++; + buffer[cur_byte++] = buffer_read(); bits_left -= 8; } buffer[cur_byte] = 0x0; + /* There is one more partial byte left from the clock data in/out instructions */ if (bits_left > 1) { - buffer[cur_byte] = BUFFER_READ >> 1; + buffer[cur_byte] = buffer_read() >> 1; } - - buffer[cur_byte] = (buffer[cur_byte] | ((BUFFER_READ & 0x02) << 6)) >> (8 - bits_left); - + /* This shift depends on the length of the clock data to tms instruction, insterted at end of the scan, now fixed to a two step transition in ft2232_add_scan */ + buffer[cur_byte] = (buffer[cur_byte] | (((buffer_read()) << 1) & 0x80)) >> (8 - bits_left); } -void ft2232_debug_dump_buffer(void) + +static void ft2232_debug_dump_buffer(void) { - int i; - char line[256]; - char *line_p = line; - + 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) { - DEBUG("%s", line); + LOG_DEBUG("%s", line); line_p = line; } } - + if (line_p != line) - DEBUG("%s", line); + LOG_DEBUG("%s", line); } -int ft2232_send_and_recv(jtag_command_t *first, jtag_command_t *last) + +static 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; - + jtag_command_t* cmd; + uint8_t* buffer; + int scan_size; + enum scan_type type; + int retval; + uint32_t bytes_written = 0; + uint32_t bytes_read = 0; + #ifdef _DEBUG_USB_IO_ - struct timeval start, inter, inter2, end; - struct timeval d_inter, d_inter2, d_end; + struct timeval start, inter, inter2, end; + struct timeval d_inter, d_inter2, d_end; #endif #ifdef _DEBUG_USB_COMMS_ - DEBUG("write buffer (size %i):", ft2232_buffer_size); + LOG_DEBUG("write buffer (size %i):", ft2232_buffer_size); ft2232_debug_dump_buffer(); #endif #ifdef _DEBUG_USB_IO_ - gettimeofday(&start, NULL); + gettimeofday(&start, NULL); #endif if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK) { - ERROR("couldn't write MPSSE commands to FT2232"); - exit(-1); + LOG_ERROR("couldn't write MPSSE commands to FT2232"); + return retval; } - + #ifdef _DEBUG_USB_IO_ - gettimeofday(&inter, NULL); + gettimeofday(&inter, NULL); #endif - + if (ft2232_expect_read) { int timeout = 100; ft2232_buffer_size = 0; - + #ifdef _DEBUG_USB_IO_ - gettimeofday(&inter2, NULL); + gettimeofday(&inter2, NULL); #endif - + if ((retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read)) != ERROR_OK) { - ERROR("couldn't read from FT2232"); - exit(-1); + LOG_ERROR("couldn't read from FT2232"); + return retval; } - + #ifdef _DEBUG_USB_IO_ - gettimeofday(&end, NULL); + gettimeofday(&end, NULL); timeval_subtract(&d_inter, &inter, &start); timeval_subtract(&d_inter2, &inter2, &start); timeval_subtract(&d_end, &end, &start); - 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); + LOG_INFO("inter: %u.%06u, inter2: %u.%06u end: %u.%06u", + (unsigned)d_inter.tv_sec, (unsigned)d_inter.tv_usec, + (unsigned)d_inter2.tv_sec, (unsigned)d_inter2.tv_usec, + (unsigned)d_end.tv_sec, (unsigned)d_end.tv_usec); #endif - - + ft2232_buffer_size = bytes_read; - + if (ft2232_expect_read != ft2232_buffer_size) { - ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read, ft2232_buffer_size, 100 - timeout); - ft2232_debug_dump_buffer(); + 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_ - DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ft2232_buffer_size); + LOG_DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ft2232_buffer_size); ft2232_debug_dump_buffer(); #endif } - ft2232_expect_read = 0; + 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); - jtag_read_buffer(buffer, cmd->cmd.scan); - free(buffer); - } - break; - default: - break; + 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 ERROR_OK; + return retval; } -void ft2232_add_pathmove(pathmove_command_t *cmd) + +/** + * Function ft2232_add_pathmove + * moves the TAP controller from the current state to a new state through the + * given path, where path is an array of tap_state_t's. + * + * @param path is an array of tap_stat_t which gives the states to traverse through + * ending with the last state at path[num_states-1] + * @param num_states is the count of state steps to move through + */ +static void ft2232_add_pathmove(tap_state_t* path, int num_states) { - int num_states = cmd->num_states; - u8 tms_byte; - int state_count; + int tms_bits = 0; + int state_ndx; + tap_state_t walker = tap_get_state(); + + assert((unsigned) num_states <= 32u); /* tms_bits only holds 32 bits */ - state_count = 0; - while (num_states) + /* this loop verifies that the path is legal and logs each state in the path */ + for (state_ndx = 0; state_ndx < num_states; ++state_ndx) { - tms_byte = 0x0; - int bit_count = 0; - - /* command "Clock Data to TMS/CS Pin (no Read)" */ - BUFFER_ADD = 0x4b; - /* number of states remaining */ - BUFFER_ADD = (num_states % 7) - 1; - - while (num_states % 7) - { - 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 - { - ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]); - exit(-1); - } + tap_state_t desired_next_state = path[state_ndx]; - cur_state = cmd->path[state_count]; - state_count++; - num_states--; + if (tap_state_transition(walker, false) == desired_next_state) + ; /* bit within tms_bits at index state_ndx is already zero */ + else if (tap_state_transition(walker, true) == desired_next_state) + tms_bits |= (1 << state_ndx); + else + { + LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", + tap_state_name(walker), tap_state_name(desired_next_state)); + exit(-1); } - - BUFFER_ADD = tms_byte; + + walker = desired_next_state; } - - end_state = cur_state; + + clock_tms(0x4b, tms_bits, num_states, 0); + + tap_set_end_state(tap_get_state()); } -void ft2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size) + +static void ft2232_add_scan(bool ir_scan, enum scan_type type, uint8_t* buffer, int scan_size) { int num_bytes = (scan_size + 7) / 8; int bits_left = scan_size; - int cur_byte = 0; + int cur_byte = 0; int last_bit; - if (!((!ir_scan && (cur_state == TAP_SD)) || (ir_scan && (cur_state == TAP_SI)))) + if (!ir_scan) { - /* command "Clock Data to TMS/CS Pin (no Read)" */ - BUFFER_ADD = 0x4b; - /* scan 7 bit */ - BUFFER_ADD = 0x6; - /* TMS data bits */ - if (ir_scan) + if (tap_get_state() != TAP_DRSHIFT) { - BUFFER_ADD = TAP_MOVE(cur_state, TAP_SI); - cur_state = TAP_SI; + move_to_state(TAP_DRSHIFT); } - else + } + else + { + if (tap_get_state() != TAP_IRSHIFT) { - BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD); - cur_state = TAP_SD; + move_to_state(TAP_IRSHIFT); } - //DEBUG("added TMS scan (no read)"); } - + /* add command for complete bytes */ while (num_bytes > 1) { @@ -504,32 +807,34 @@ void ft2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size if (type == SCAN_IO) { /* Clock Data Bytes In and Out LSB First */ - BUFFER_ADD = 0x39; - //DEBUG("added TDI bytes (io %i)", num_bytes); + buffer_write(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; - //DEBUG("added TDI bytes (o)"); + buffer_write(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; - //DEBUG("added TDI bytes (i %i)", num_bytes); + buffer_write(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; + num_bytes -= thisrun_bytes; + + buffer_write((uint8_t) (thisrun_bytes - 1)); + buffer_write((uint8_t) ((thisrun_bytes - 1) >> 8)); + if (type != SCAN_IN) { /* add complete bytes */ - while(thisrun_bytes-- > 0) + while (thisrun_bytes-- > 0) { - BUFFER_ADD = buffer[cur_byte]; - cur_byte++; + buffer_write(buffer[cur_byte++]); bits_left -= 8; } } @@ -538,7 +843,7 @@ void ft2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size 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; @@ -551,143 +856,156 @@ void ft2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size if (type == SCAN_IO) { /* Clock Data Bits In and Out LSB First */ - BUFFER_ADD = 0x3b; - //DEBUG("added TDI bits (io) %i", bits_left - 1); + buffer_write(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; - //DEBUG("added TDI bits (o)"); + buffer_write(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; - //DEBUG("added TDI bits (i %i)", bits_left - 1); + buffer_write(0x2a); + /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */ } - BUFFER_ADD = bits_left - 2; + + buffer_write(bits_left - 2); if (type != SCAN_IN) - BUFFER_ADD = buffer[cur_byte]; + buffer_write(buffer[cur_byte]); } - if ((ir_scan && (end_state == TAP_SI)) || - (!ir_scan && (end_state == TAP_SD))) + if ((ir_scan && (tap_get_end_state() == TAP_IRSHIFT)) + || (!ir_scan && (tap_get_end_state() == TAP_DRSHIFT))) { if (type == SCAN_IO) { /* Clock Data Bits In and Out LSB First */ - BUFFER_ADD = 0x3b; - //DEBUG("added TDI bits (io) %i", bits_left - 1); + buffer_write(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; - //DEBUG("added TDI bits (o)"); + buffer_write(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; - //DEBUG("added TDI bits (i %i)", bits_left - 1); + buffer_write(0x2a); + /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */ } - BUFFER_ADD = 0x0; - BUFFER_ADD = last_bit; + buffer_write(0x0); + buffer_write(last_bit); } else { + int tms_bits; + int tms_count; + uint8_t mpsse_cmd; + /* move from Shift-IR/DR to end state */ if (type != SCAN_OUT) { + /* We always go to the PAUSE state in two step at the end of an IN or IO scan */ + /* This must be coordinated with the bit shifts in ft2232_read_scan */ + tms_bits = 0x01; + tms_count = 2; /* Clock Data to TMS/CS Pin with Read */ - BUFFER_ADD = 0x6b; - //DEBUG("added TMS scan (read)"); + mpsse_cmd = 0x6b; + /* LOG_DEBUG("added TMS scan (read)"); */ } else { + tms_bits = tap_get_tms_path(tap_get_state(), tap_get_end_state()); + tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state()); /* Clock Data to TMS/CS Pin (no Read) */ - BUFFER_ADD = 0x4b; - //DEBUG("added TMS scan (no read)"); + mpsse_cmd = 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; + + clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit); + } + + if (tap_get_state() != tap_get_end_state()) + { + move_to_state(tap_get_end_state()); } } -int ft2232_large_scan(scan_command_t *cmd, enum scan_type type, u8 *buffer, int scan_size) + +static int ft2232_large_scan(scan_command_t* cmd, enum scan_type type, uint8_t* buffer, int scan_size) { int num_bytes = (scan_size + 7) / 8; int bits_left = scan_size; - int cur_byte = 0; + 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; + uint8_t* receive_buffer = malloc(CEIL(scan_size, 8)); + uint8_t* receive_pointer = receive_buffer; + uint32_t bytes_written; + uint32_t bytes_read; int retval; int thisrun_read = 0; - + if (cmd->ir_scan) { - ERROR("BUG: large IR scans are not supported"); + LOG_ERROR("BUG: large IR scans are not supported"); exit(-1); } - if (cur_state != TAP_SD) + if (tap_get_state() != TAP_DRSHIFT) { - /* 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; + move_to_state(TAP_DRSHIFT); } - + if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK) { - ERROR("couldn't write MPSSE commands to FT2232"); + LOG_ERROR("couldn't write MPSSE commands to FT2232"); exit(-1); } - DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written); + LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", + ft2232_buffer_size, (int)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; - //DEBUG("added TDI bytes (io %i)", num_bytes); + buffer_write(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; - //DEBUG("added TDI bytes (o)"); + buffer_write(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; - //DEBUG("added TDI bytes (i %i)", num_bytes); + buffer_write(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; + thisrun_read = thisrun_bytes; + num_bytes -= thisrun_bytes; + buffer_write((uint8_t) (thisrun_bytes - 1)); + buffer_write((uint8_t) ((thisrun_bytes - 1) >> 8)); + if (type != SCAN_IN) { /* add complete bytes */ - while(thisrun_bytes-- > 0) + while (thisrun_bytes-- > 0) { - BUFFER_ADD = buffer[cur_byte]; + buffer_write(buffer[cur_byte]); cur_byte++; bits_left -= 8; } @@ -699,26 +1017,30 @@ int ft2232_large_scan(scan_command_t *cmd, enum scan_type type, u8 *buffer, int if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK) { - ERROR("couldn't write MPSSE commands to FT2232"); + LOG_ERROR("couldn't write MPSSE commands to FT2232"); exit(-1); } - DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written); + LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", + ft2232_buffer_size, + (int)bytes_written); ft2232_buffer_size = 0; - + if (type != SCAN_OUT) { if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK) { - ERROR("couldn't read from FT2232"); + LOG_ERROR("couldn't read from FT2232"); exit(-1); } - DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read); + LOG_DEBUG("thisrun_read: %i, bytes_read: %i", + thisrun_read, + (int)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; @@ -731,116 +1053,126 @@ int ft2232_large_scan(scan_command_t *cmd, enum scan_type type, u8 *buffer, int if (type == SCAN_IO) { /* Clock Data Bits In and Out LSB First */ - BUFFER_ADD = 0x3b; - //DEBUG("added TDI bits (io) %i", bits_left - 1); + buffer_write(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; - //DEBUG("added TDI bits (o)"); + buffer_write(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; - //DEBUG("added TDI bits (i %i)", bits_left - 1); + buffer_write(0x2a); + /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */ } - BUFFER_ADD = bits_left - 2; + buffer_write(bits_left - 2); if (type != SCAN_IN) - BUFFER_ADD = buffer[cur_byte]; - + buffer_write(buffer[cur_byte]); + if (type != SCAN_OUT) thisrun_read += 2; } - if (end_state == TAP_SD) + if (tap_get_end_state() == TAP_DRSHIFT) { if (type == SCAN_IO) { /* Clock Data Bits In and Out LSB First */ - BUFFER_ADD = 0x3b; - //DEBUG("added TDI bits (io) %i", bits_left - 1); + buffer_write(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; - //DEBUG("added TDI bits (o)"); + buffer_write(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; - //DEBUG("added TDI bits (i %i)", bits_left - 1); + buffer_write(0x2a); + /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */ } - BUFFER_ADD = 0x0; - BUFFER_ADD = last_bit; + buffer_write(0x0); + buffer_write(last_bit); } else { + int tms_bits = tap_get_tms_path(tap_get_state(), tap_get_end_state()); + int tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state()); + uint8_t mpsse_cmd; + /* move from Shift-IR/DR to end state */ if (type != SCAN_OUT) { /* Clock Data to TMS/CS Pin with Read */ - BUFFER_ADD = 0x6b; - //DEBUG("added TMS scan (read)"); + mpsse_cmd = 0x6b; + /* LOG_DEBUG("added TMS scan (read)"); */ } else { /* Clock Data to TMS/CS Pin (no Read) */ - BUFFER_ADD = 0x4b; - //DEBUG("added TMS scan (no read)"); + mpsse_cmd = 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; + + clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit); } - + if (type != SCAN_OUT) thisrun_read += 1; - + if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK) { - ERROR("couldn't write MPSSE commands to FT2232"); + LOG_ERROR("couldn't write MPSSE commands to FT2232"); exit(-1); } - DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written); + LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", + ft2232_buffer_size, + (int)bytes_written); ft2232_buffer_size = 0; - + if (type != SCAN_OUT) { if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK) { - ERROR("couldn't read from FT2232"); + LOG_ERROR("couldn't read from FT2232"); exit(-1); } - DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read); + LOG_DEBUG("thisrun_read: %i, bytes_read: %i", + thisrun_read, + (int)bytes_read); receive_pointer += bytes_read; } - + return ERROR_OK; } -int ft2232_predict_scan_out(int scan_size, enum scan_type type) + +static 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 */ + + if (tap_get_state() != TAP_DRSHIFT) + predicted_size += get_tms_buffer_requirements(tap_get_tms_path_len(tap_get_state(), TAP_DRSHIFT)); + + if (type == SCAN_IN) /* only from device to host */ { /* complete bytes */ - predicted_size += (CEIL(num_bytes, 65536)) * 3; + 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 */ + else /* host to device, or bidirectional */ { /* complete bytes */ - predicted_size += num_bytes + (CEIL(num_bytes, 65536)) * 3; + predicted_size += num_bytes + CEIL(num_bytes, 65536) * 3; + /* remaining bits -1 (up to 7) */ predicted_size += ((scan_size - 1) % 8) ? 3 : 0; } @@ -848,70 +1180,74 @@ int ft2232_predict_scan_out(int scan_size, enum scan_type type) return predicted_size; } -int ft2232_predict_scan_in(int scan_size, enum scan_type type) + +static 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; } - - //DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size); + + /* LOG_DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size); */ return predicted_size; } -void usbjtag_reset(int trst, int srst) + +static void usbjtag_reset(int trst, int srst) { + enum reset_types jtag_reset_config = jtag_get_reset_config(); if (trst == 1) { - cur_state = TAP_TLR; if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) - low_direction |= nTRSTnOE; /* switch to output pin (output is low) */ + low_direction |= nTRSTnOE; /* switch to output pin (output is low) */ else - low_output &= ~nTRST; /* switch output low */ + 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 */ + low_output |= nTRST; /* switch output high */ } if (srst == 1) { if (jtag_reset_config & RESET_SRST_PUSH_PULL) - low_output &= ~nSRST; /* switch output low */ + low_output &= ~nSRST; /* switch output low */ else - low_direction |= nSRSTnOE; /* switch to output pin (output is low) */ + 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 */ + low_output |= nSRST; /* switch output high */ else - low_direction &= ~nSRSTnOE; /* switch to input pin (high-Z) */ + 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; + /* command "set data bits low byte" */ + buffer_write(0x80); + buffer_write(low_output); + buffer_write(low_direction); } -void jtagkey_reset(int trst, int srst) + +static void jtagkey_reset(int trst, int srst) { + enum reset_types jtag_reset_config = jtag_get_reset_config(); if (trst == 1) { - cur_state = TAP_TLR; if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) high_output &= ~nTRSTnOE; else @@ -939,19 +1275,21 @@ void jtagkey_reset(int trst, int srst) else high_output |= nSRSTnOE; } - + /* command "set data bits high byte" */ - BUFFER_ADD = 0x82; - BUFFER_ADD = high_output; - BUFFER_ADD = high_direction; - DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction); + buffer_write(0x82); + buffer_write(high_output); + buffer_write(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) + +static void olimex_jtag_reset(int trst, int srst) { + enum reset_types jtag_reset_config = jtag_get_reset_config(); if (trst == 1) { - cur_state = TAP_TLR; if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) high_output &= ~nTRSTnOE; else @@ -965,450 +1303,723 @@ void olimex_jtag_reset(int trst, int srst) high_output |= nTRST; } - if (srst == 1) - { - high_output |= nSRST; - } - else if (srst == 0) - { - high_output &= ~nSRST; - } + 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; - DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction); + /* command "set data bits high byte" */ + buffer_write(0x82); + buffer_write(high_output); + buffer_write(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 m5960_reset(int trst, int srst) + +static void axm0432_jtag_reset(int trst, int srst) { if (trst == 1) { - cur_state = TAP_TLR; - low_output &= ~nTRST; + tap_set_state(TAP_RESET); + high_output &= ~nTRST; } else if (trst == 0) { - low_output |= nTRST; + 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; - DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction); -} - -void turtle_reset(int trst, int srst) -{ - trst = trst; - if (srst == 1) { - low_output |= nSRST; + high_output &= ~nSRST; } else if (srst == 0) { - low_output &= ~nSRST; + high_output |= nSRST; } - - /* command "set data bits high byte" */ - BUFFER_ADD = 0x80; - BUFFER_ADD = low_output; - BUFFER_ADD = low_direction; - DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst, low_output, low_direction); + + /* command "set data bits low byte" */ + buffer_write(0x82); + buffer_write(high_output); + buffer_write(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() + +static void flyswatter_reset(int trst, int srst) { - 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; + 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_write(0x80); + buffer_write(low_output); + buffer_write(low_direction); + LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction); +} + + +static 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_write(0x80); + buffer_write(low_output); + buffer_write(low_direction); + LOG_DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst, low_output, low_direction); +} + + +static 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_write(0x82); + buffer_write(high_output); + buffer_write(high_direction); + LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, + high_direction); +} + + +static 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_write(0x80); + buffer_write(low_output); + buffer_write(low_direction); + + /* command "set data bits high byte" */ + buffer_write(0x82); + buffer_write(high_output); + buffer_write(high_direction); + LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, + high_direction); +} + + + +static void sheevaplug_reset(int trst, int srst) +{ + if (trst == 1) + high_output &= ~nTRST; + else if (trst == 0) + high_output |= nTRST; + + if (srst == 1) + high_output &= ~nSRSTnOE; + else if (srst == 0) + high_output |= nSRSTnOE; + + /* command "set data bits high byte" */ + buffer_write(0x82); + buffer_write(high_output); + buffer_write(high_direction); + LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction); +} + +static int ft2232_execute_runtest(jtag_command_t *cmd) +{ + int retval; + int i; int predicted_size = 0; - int require_send = 0; + retval = ERROR_OK; + + DEBUG_JTAG_IO("runtest %i cycles, end in %s", + cmd->cmd.runtest->num_cycles, + tap_state_name(cmd->cmd.runtest->end_state)); + + /* only send the maximum buffer size that FT2232C can handle */ + predicted_size = 0; + if (tap_get_state() != TAP_IDLE) + predicted_size += 3; + predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7); + if (cmd->cmd.runtest->end_state != TAP_IDLE) + predicted_size += 3; + if (tap_get_end_state() != TAP_IDLE) + 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 (tap_get_state() != TAP_IDLE) + { + move_to_state(TAP_IDLE); + require_send = 1; + } + i = cmd->cmd.runtest->num_cycles; + while (i > 0) + { + /* there are no state transitions in this code, so omit state tracking */ + + /* command "Clock Data to TMS/CS Pin (no Read)" */ + buffer_write(0x4b); + + /* scan 7 bits */ + buffer_write((i > 7) ? 6 : (i - 1)); + + /* TMS data bits */ + buffer_write(0x0); + tap_set_state(TAP_IDLE); + + i -= (i > 7) ? 7 : i; + /* LOG_DEBUG("added TMS scan (no read)"); */ + } + + ft2232_end_state(cmd->cmd.runtest->end_state); + + if (tap_get_state() != tap_get_end_state()) + { + move_to_state(tap_get_end_state()); + } + + require_send = 1; +#ifdef _DEBUG_JTAG_IO_ + LOG_DEBUG("runtest: %i, end in %s", cmd->cmd.runtest->num_cycles, tap_state_name(tap_get_end_state())); +#endif + + return retval; +} + + +static int ft2232_execute_statemove(jtag_command_t *cmd) +{ + int predicted_size = 0; + int retval = ERROR_OK; + + DEBUG_JTAG_IO("statemove end in %i", cmd->cmd.statemove->end_state); + + /* 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; + } + ft2232_end_state(cmd->cmd.statemove->end_state); + + /* move to end state */ + if (tap_get_state() != tap_get_end_state()) + { + move_to_state(tap_get_end_state()); + require_send = 1; + } + + return retval; +} + +static int ft2232_execute_pathmove(jtag_command_t *cmd) +{ + int predicted_size = 0; + int retval = ERROR_OK; + + tap_state_t* path = cmd->cmd.pathmove->path; + int num_states = cmd->cmd.pathmove->num_states; + + DEBUG_JTAG_IO("pathmove: %i states, current: %s end: %s", num_states, + tap_state_name(tap_get_state()), + tap_state_name(path[num_states-1]) +); + + /* only send the maximum buffer size that FT2232C can handle */ + predicted_size = 3 * CEIL(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(path, num_states); + require_send = 1; + + return retval; +} + + +static int ft2232_execute_scan(jtag_command_t *cmd) +{ + uint8_t* buffer; + int scan_size; /* size of IR or DR scan */ + int predicted_size = 0; + int retval = ERROR_OK; + + enum scan_type type = jtag_scan_type(cmd->cmd.scan); + + DEBUG_JTAG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN", type); + + scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer); + + 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 */ + 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); + return retval; + } + 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); */ + 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 bits, end in %s", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, + tap_state_name(tap_get_end_state())); +#endif + return retval; + +} + +static int ft2232_execute_reset(jtag_command_t *cmd) +{ + int retval; + int predicted_size = 0; + retval = ERROR_OK; + + DEBUG_JTAG_IO("reset trst: %i srst %i", + cmd->cmd.reset->trst, cmd->cmd.reset->srst); + + /* 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; + } + + 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 + return retval; +} + +static int ft2232_execute_sleep(jtag_command_t *cmd) +{ + int retval; + retval = ERROR_OK; + + DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us); + + 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 while in %s", cmd->cmd.sleep->us, tap_state_name(tap_get_state())); +#endif + + return retval; +} + +static int ft2232_execute_stableclocks(jtag_command_t *cmd) +{ + int retval; + retval = ERROR_OK; + + /* this is only allowed while in a stable state. A check for a stable + * state was done in jtag_add_clocks() + */ + if (ft2232_stableclocks(cmd->cmd.stableclocks->num_cycles, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; +#ifdef _DEBUG_JTAG_IO_ + LOG_DEBUG("clocks %i while in %s", cmd->cmd.stableclocks->num_cycles, tap_state_name(tap_get_state())); +#endif + + return retval; +} + +static int ft2232_execute_command(jtag_command_t *cmd) +{ + int retval; + retval = ERROR_OK; + + switch (cmd->type) + { + case JTAG_RESET: retval = ft2232_execute_reset(cmd); break; + case JTAG_RUNTEST: retval = ft2232_execute_runtest(cmd); break; + case JTAG_STATEMOVE: retval = ft2232_execute_statemove(cmd); break; + case JTAG_PATHMOVE: retval = ft2232_execute_pathmove(cmd); break; + case JTAG_SCAN: retval = ft2232_execute_scan(cmd); break; + case JTAG_SLEEP: retval = ft2232_execute_sleep(cmd); break; + case JTAG_STABLECLOCKS: retval = ft2232_execute_stableclocks(cmd); break; + default: + LOG_ERROR("BUG: unknown JTAG command type encountered"); + exit(-1); + } + return retval; +} + +static int ft2232_execute_queue() +{ + jtag_command_t* cmd = jtag_command_queue; /* currently processed command */ + int retval; + + first_unsent = cmd; /* next command that has to be sent */ + require_send = 0; + + /* 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) + if (ft2232_execute_command(cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; + /* Start reading input before FT2232 TX buffer fills up */ + cmd = cmd->next; + if (ft2232_expect_read > 256) { - 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) - { - ft2232_send_and_recv(first_unsent, cmd); - require_send = 0; - first_unsent = cmd; - } - - layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst); - require_send = 1; - -#ifdef _DEBUG_JTAG_IO_ - 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) - { - ft2232_send_and_recv(first_unsent, cmd); - 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; - //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; - //DEBUG("added TMS scan (no read)"); - } - require_send = 1; -#ifdef _DEBUG_JTAG_IO_ - 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) - { - ft2232_send_and_recv(first_unsent, cmd); - 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); - //DEBUG("added TMS scan (no read)"); - cur_state = end_state; - require_send = 1; -#ifdef _DEBUG_JTAG_IO_ - 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) - { - ft2232_send_and_recv(first_unsent, cmd); - require_send = 0; - first_unsent = cmd; - } - ft2232_add_pathmove(cmd->cmd.pathmove); - require_send = 1; -#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 - 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) - { - DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)"); - /* unsent commands before this */ - if (first_unsent != cmd) - ft2232_send_and_recv(first_unsent, cmd); - - /* 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) - { - DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)", first_unsent, cmd); - ft2232_send_and_recv(first_unsent, cmd); - require_send = 0; - first_unsent = cmd; - } - ft2232_expect_read += ft2232_predict_scan_in(scan_size, type); - //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_ - DEBUG("%s scan, %i bit, end in %i", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, end_state); -#endif - break; - case JTAG_SLEEP: - ft2232_send_and_recv(first_unsent, cmd); - first_unsent = cmd->next; - jtag_sleep(cmd->cmd.sleep->us); -#ifdef _DEBUG_JTAG_IO_ - DEBUG("sleep %i usec", cmd->cmd.sleep->us); -#endif - break; - default: - ERROR("BUG: unknown JTAG command type encountered"); - exit(-1); + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; + first_unsent = cmd; } - cmd = cmd->next; } if (require_send > 0) - ft2232_send_and_recv(first_unsent, cmd); + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; - return ERROR_OK; + return retval; } + #if BUILD_FT2232_FTD2XX == 1 -static int ft2232_init_ftd2xx(u16 vid, u16 pid, int more, int *try_more) +static int ft2232_init_ftd2xx(uint16_t vid, uint16_t pid, int more, int* try_more) { - FT_STATUS status; - DWORD openex_flags = 0; - char *openex_string = NULL; - u8 latency_timer; + FT_STATUS status; + DWORD deviceID; + char SerialNumber[16]; + char Description[64]; + DWORD openex_flags = 0; + char* openex_string = NULL; + uint8_t latency_timer; - DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)", - ft2232_layout, vid, pid); + 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) { - WARNING("couldn't add %4.4x:%4.4x", - vid, pid); + LOG_WARNING("couldn't add %4.4x:%4.4x", vid, pid); } #endif if (ft2232_device_desc && ft2232_serial) { - WARNING("can't open by device description and serial number, giving precedence to 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; + openex_flags = FT_OPEN_BY_DESCRIPTION; } else if (ft2232_serial) { openex_string = ft2232_serial; - openex_flags = FT_OPEN_BY_SERIAL_NUMBER; + openex_flags = FT_OPEN_BY_SERIAL_NUMBER; } else { - ERROR("neither device description nor serial number specified"); - ERROR("please add \"ft2232_device_desc \" or \"ft2232_serial \" to your .cfg file"); - - return ERROR_JTAG_INIT_FAILED; + 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) + status = FT_OpenEx(openex_string, openex_flags, &ftdih); + if (status != FT_OK) { + // under Win32, the FTD2XX driver appends an "A" to the end + // of the description, if we tried by the desc, then + // try by the alternate "A" description. + if (openex_string == ft2232_device_desc) { + // Try the alternate method. + openex_string = ft2232_device_desc_A; + status = FT_OpenEx(openex_string, openex_flags, &ftdih); + if (status == FT_OK) { + // yea, the "alternate" method worked! + } else { + // drat, give the user a meaningfull message. + // telling the use we tried *BOTH* methods. + LOG_WARNING("Unable to open FTDI Device tried: '%s' and '%s'\n", + ft2232_device_desc, + ft2232_device_desc_A); + } + } + } + + if (status != FT_OK) { DWORD num_devices; - - if (more) { - WARNING("unable to open ftdi device (trying more): %lu", - status); + + if (more) + { + LOG_WARNING("unable to open ftdi device (trying more): %lu", status); *try_more = 1; return ERROR_JTAG_INIT_FAILED; } - ERROR("unable to open ftdi device: %lu", status); + 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; + char** desc_array = malloc(sizeof(char*) * (num_devices + 1)); + uint32_t 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) { - ERROR("ListDevices: %lu\n", num_devices); + LOG_ERROR("ListDevices: %lu\n", num_devices); for (i = 0; i < num_devices; i++) - ERROR("%i: %s", i, desc_array[i]); + LOG_ERROR("%i: \"%s\"", i, desc_array[i]); } - + for (i = 0; i < num_devices; i++) free(desc_array[i]); + free(desc_array); } else { - printf("ListDevices: NONE\n"); + LOG_ERROR("ListDevices: NONE\n"); } return ERROR_JTAG_INIT_FAILED; } - if ((status = FT_SetLatencyTimer(ftdih, 2)) != FT_OK) + if ((status = FT_SetLatencyTimer(ftdih, ft2232_latency)) != FT_OK) { - ERROR("unable to set latency timer: %lu", status); + LOG_ERROR("unable to set latency timer: %lu", status); return ERROR_JTAG_INIT_FAILED; } - + if ((status = FT_GetLatencyTimer(ftdih, &latency_timer)) != FT_OK) { - ERROR("unable to get latency timer: %lu", status); + LOG_ERROR("unable to get latency timer: %lu", status); return ERROR_JTAG_INIT_FAILED; } else { - DEBUG("current latency timer: %i", latency_timer); + LOG_DEBUG("current latency timer: %i", latency_timer); } - + if ((status = FT_SetTimeouts(ftdih, 5000, 5000)) != FT_OK) { - ERROR("unable to set timeouts: %lu", status); + LOG_ERROR("unable to set timeouts: %lu", status); return ERROR_JTAG_INIT_FAILED; } if ((status = FT_SetBitMode(ftdih, 0x0b, 2)) != FT_OK) { - ERROR("unable to enable bit i/o mode: %lu", status); + LOG_ERROR("unable to enable bit i/o mode: %lu", status); + return ERROR_JTAG_INIT_FAILED; + } + + if ((status = FT_GetDeviceInfo(ftdih, &ftdi_device, &deviceID, SerialNumber, Description, NULL)) != FT_OK) + { + LOG_ERROR("unable to get FT_GetDeviceInfo: %lu", status); return ERROR_JTAG_INIT_FAILED; } + else + { + LOG_INFO("device: %lu", ftdi_device); + LOG_INFO("deviceID: %lu", deviceID); + LOG_INFO("SerialNumber: %s", SerialNumber); + LOG_INFO("Description: %s", Description); + +#ifdef BUILD_FTD2XX_HIGHSPEED + if (ft2232_device_is_highspeed()) + { + ft2232_max_tck = FTDI_2232H_4232H_MAX_TCK; + LOG_INFO("max TCK change to: %u kHz", ft2232_max_tck); + } +#endif + } 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) { - ERROR("error purging ftd2xx device: %lu", status); + 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) +static int ft2232_init_libftdi(uint16_t vid, uint16_t pid, int more, int* try_more) { - u8 latency_timer; + uint8_t latency_timer; - DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)", - ft2232_layout, vid, pid); + 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; + 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; + } + /* context, vendor id, product id */ if (ftdi_usb_open_desc(&ftdic, vid, pid, ft2232_device_desc, - ft2232_serial) < 0) { + ft2232_serial) < 0) + { if (more) - WARNING("unable to open ftdi device (trying more): %s", - ftdic.error_str); + LOG_WARNING("unable to open ftdi device (trying more): %s", + ftdic.error_str); else - ERROR("unable to open ftdi device: %s", ftdic.error_str); + 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) - { - ERROR("unable to select FT2232 channel A: %s", ftdic.error_str); - return ERROR_JTAG_INIT_FAILED; - } - + /* There is already a reset in ftdi_usb_open_desc, this should be redundant */ if (ftdi_usb_reset(&ftdic) < 0) { - ERROR("unable to reset ftdi device"); + LOG_ERROR("unable to reset ftdi device"); return ERROR_JTAG_INIT_FAILED; } - if (ftdi_set_latency_timer(&ftdic, 2) < 0) + if (ftdi_set_latency_timer(&ftdic, ft2232_latency) < 0) { - ERROR("unable to set latency timer"); + LOG_ERROR("unable to set latency timer"); return ERROR_JTAG_INIT_FAILED; } - + if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0) { - ERROR("unable to get latency timer"); + LOG_ERROR("unable to get latency timer"); return ERROR_JTAG_INIT_FAILED; } else { - DEBUG("current latency timer: %i", latency_timer); + LOG_DEBUG("current latency timer: %i", latency_timer); } ftdi_set_bitmode(&ftdic, 0x0b, 2); /* ctx, JTAG I/O mask */ @@ -1416,32 +2027,44 @@ static int ft2232_init_libftdi(u16 vid, u16 pid, int more, int *try_more) return ERROR_OK; } + static int ft2232_purge_libftdi(void) { if (ftdi_usb_purge_buffers(&ftdic) < 0) { - ERROR("ftdi_purge_buffers: %s", ftdic.error_str); + 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) +static int ft2232_init(void) { - u8 buf[1]; + uint8_t buf[1]; int retval; - u32 bytes_written; - ft2232_layout_t *cur_layout = ft2232_layouts; + uint32_t bytes_written; + const ft2232_layout_t* cur_layout = ft2232_layouts; int i; - + + if (tap_get_tms_path_len(TAP_IRPAUSE,TAP_IRPAUSE) == 7) + { + LOG_DEBUG("ft2232 interface using 7 step jtag state transitions"); + } + else + { + LOG_DEBUG("ft2232 interface using shortest path jtag state transitions"); + + } if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0)) { ft2232_layout = "usbjtag"; - WARNING("No ft2232 layout specified, using default 'usbjtag'"); + LOG_WARNING("No ft2232 layout specified, using default 'usbjtag'"); } - + while (cur_layout->name) { if (strcmp(cur_layout->name, ft2232_layout) == 0) @@ -1454,11 +2077,12 @@ int ft2232_init(void) if (!layout) { - ERROR("No matching layout found for %s", ft2232_layout); + LOG_ERROR("No matching layout found for %s", ft2232_layout); return ERROR_JTAG_INIT_FAILED; } - - for (i = 0; 1; i++) { + + 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 @@ -1468,16 +2092,16 @@ int ft2232_init(void) * 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 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); + more, &try_more); #elif BUILD_FT2232_LIBFTDI == 1 retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i], - more, &try_more); -#endif + more, &try_more); +#endif if (retval >= 0) break; if (!more || !try_more) @@ -1490,12 +2114,12 @@ int ft2232_init(void) if (layout->init() != ERROR_OK) return ERROR_JTAG_INIT_FAILED; - ft2232_speed(jtag_speed); + ft2232_speed(jtag_get_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)) { - ERROR("couldn't write to FT2232 to disable loopback"); + LOG_ERROR("couldn't write to FT2232 to disable loopback"); return ERROR_JTAG_INIT_FAILED; } @@ -1503,31 +2127,32 @@ int ft2232_init(void) return ft2232_purge_ftd2xx(); #elif BUILD_FT2232_LIBFTDI == 1 return ft2232_purge_libftdi(); -#endif +#endif return ERROR_OK; } -int usbjtag_init(void) + +static int usbjtag_init(void) { - u8 buf[3]; - u32 bytes_written; - - low_output = 0x08; + uint8_t buf[3]; + uint32_t bytes_written; + + low_output = 0x08; low_direction = 0x0b; - + if (strcmp(ft2232_layout, "usbjtag") == 0) { - nTRST = 0x10; + nTRST = 0x10; nTRSTnOE = 0x10; - nSRST = 0x40; + nSRST = 0x40; nSRSTnOE = 0x40; } else if (strcmp(ft2232_layout, "signalyzer") == 0) { - nTRST = 0x10; + nTRST = 0x10; nTRSTnOE = 0x10; - nSRST = 0x20; + nSRST = 0x20; nSRSTnOE = 0x20; } else if (strcmp(ft2232_layout, "evb_lm3s811") == 0) @@ -1536,96 +2161,179 @@ int usbjtag_init(void) nTRSTnOE = 0x00; nSRST = 0x20; nSRSTnOE = 0x20; - low_output = 0x88; + low_output = 0x88; low_direction = 0x8b; } + else if (strcmp(ft2232_layout, "luminary_icdi") == 0) + { + nTRST = 0x0; + nTRSTnOE = 0x00; + nSRST = 0x20; + nSRSTnOE = 0x20; + low_output = 0x88; + low_direction = 0xcb; + } else { - ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout); - return ERROR_JTAG_INIT_FAILED; + LOG_ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout); + return ERROR_JTAG_INIT_FAILED; } - + + enum reset_types jtag_reset_config = jtag_get_reset_config(); if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) { low_direction &= ~nTRSTnOE; /* nTRST input */ - low_output &= ~nTRST; /* nTRST = 0 */ + low_output &= ~nTRST; /* nTRST = 0 */ } else { - low_direction |= nTRSTnOE; /* nTRST output */ - low_output |= nTRST; /* nTRST = 1 */ + 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 */ + low_direction |= nSRSTnOE; /* nSRST output */ + low_output |= nSRST; /* nSRST = 1 */ } else { low_direction &= ~nSRSTnOE; /* nSRST input */ - low_output &= ~nSRST; /* nSRST = 0 */ + 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 */ - DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); - + 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)) { - ERROR("couldn't initialize FT2232 with 'USBJTAG' layout"); + LOG_ERROR("couldn't initialize FT2232 with 'USBJTAG' layout"); return ERROR_JTAG_INIT_FAILED; } return ERROR_OK; } -int jtagkey_init(void) + +static int axm0432_jtag_init(void) { - u8 buf[3]; - u32 bytes_written; - - low_output = 0x08; + uint8_t buf[3]; + uint32_t bytes_written; + + low_output = 0x08; + low_direction = 0x2b; + + /* 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, "axm0432_jtag") == 0) + { + nTRST = 0x08; + nTRSTnOE = 0x0; /* No output enable for TRST*/ + nSRST = 0x04; + nSRSTnOE = 0x0; /* No output enable for SRST*/ + } + else + { + LOG_ERROR("BUG: axm0432_jtag_init called for non axm0432 layout"); + exit(-1); + } + + high_output = 0x0; + high_direction = 0x0c; + + enum reset_types jtag_reset_config = jtag_get_reset_config(); + if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) + { + LOG_ERROR("can't set nTRSTOE to push-pull on the Dicarlo jtag"); + } + else + { + high_output |= nTRST; + } + + if (jtag_reset_config & RESET_SRST_PUSH_PULL) + { + LOG_ERROR("can't set nSRST to push-pull on the Dicarlo jtag"); + } + else + { + 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 'Dicarlo' layout"); + return ERROR_JTAG_INIT_FAILED; + } + + return ERROR_OK; +} + + +static int jtagkey_init(void) +{ + uint8_t buf[3]; + uint32_t 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 */ - DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); - + 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)) { - ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); + LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); return ERROR_JTAG_INIT_FAILED; } - + if (strcmp(layout->name, "jtagkey") == 0) { - nTRST = 0x01; + nTRST = 0x01; nTRSTnOE = 0x4; - nSRST = 0x02; + nSRST = 0x02; nSRSTnOE = 0x08; } - else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0) || - (strcmp(layout->name, "oocdlink") == 0)) + else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0) + || (strcmp(layout->name, "oocdlink") == 0)) { - nTRST = 0x02; + nTRST = 0x02; nTRSTnOE = 0x1; - nSRST = 0x08; + nSRST = 0x08; nSRSTnOE = 0x04; } else { - ERROR("BUG: jtagkey_init called for non jtagkey layout"); + LOG_ERROR("BUG: jtagkey_init called for non jtagkey layout"); exit(-1); } - - high_output = 0x0; + + high_output = 0x0; high_direction = 0x0f; + enum reset_types jtag_reset_config = jtag_get_reset_config(); if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) { high_output |= nTRSTnOE; @@ -1636,7 +2344,7 @@ int jtagkey_init(void) high_output &= ~nTRSTnOE; high_output |= nTRST; } - + if (jtag_reset_config & RESET_SRST_PUSH_PULL) { high_output &= ~nSRSTnOE; @@ -1647,50 +2355,52 @@ int jtagkey_init(void) 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) */ - DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); - + 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)) { - ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); + LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); return ERROR_JTAG_INIT_FAILED; } - + return ERROR_OK; } -int olimex_jtag_init(void) + +static int olimex_jtag_init(void) { - u8 buf[3]; - u32 bytes_written; - - low_output = 0x08; + uint8_t buf[3]; + uint32_t 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 */ - DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); - + 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)) { - ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); + LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout"); return ERROR_JTAG_INIT_FAILED; } - - nTRST = 0x01; + + nTRST = 0x01; nTRSTnOE = 0x4; - nSRST = 0x02; + nSRST = 0x02; nSRSTnOE = 0x00; /* no output enable for nSRST */ - high_output = 0x0; + high_output = 0x0; high_direction = 0x0f; + enum reset_types jtag_reset_config = jtag_get_reset_config(); if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) { high_output |= nTRSTnOE; @@ -1701,121 +2411,306 @@ int olimex_jtag_init(void) high_output &= ~nTRSTnOE; high_output |= nTRST; } - + if (jtag_reset_config & RESET_SRST_PUSH_PULL) { - ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD"); + 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) */ - 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)) + 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)) { - ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); + LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout"); return ERROR_JTAG_INIT_FAILED; } - + return ERROR_OK; } -int m5960_init(void) + +static int flyswatter_init(void) { - u8 buf[3]; - u32 bytes_written; - - low_output = 0x18; + uint8_t buf[3]; + uint32_t 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 */ - DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); - + 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)) { - ERROR("couldn't initialize FT2232 with 'm5960' layout"); + 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; + 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 */ + /* turn red LED3 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; +} + + +static int turtle_init(void) +{ + uint8_t buf[3]; + uint32_t 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; /* value */ - buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */ - DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); - + 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; +} + + +static int comstick_init(void) +{ + uint8_t buf[3]; + uint32_t 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; +} + + +static int stm32stick_init(void) +{ + uint8_t buf[3]; + uint32_t 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)) { - ERROR("couldn't initialize FT2232 with 'm5960' layout"); + LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout"); return ERROR_JTAG_INIT_FAILED; } - + return ERROR_OK; } -int turtle_init(void) + +static int sheevaplug_init(void) { - u8 buf[3]; - u32 bytes_written; - + uint8_t buf[3]; + uint32_t bytes_written; + low_output = 0x08; - low_direction = 0x5b; - + 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 */ - DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); - + 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 */ + 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)) { - ERROR("couldn't initialize FT2232 with 'turtelizer2' layout"); + LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout"); return ERROR_JTAG_INIT_FAILED; } - - nSRST = 0x40; - - high_output = 0x00; - high_direction = 0x0C; - + + nTRSTnOE = 0x1; + nTRST = 0x02; + nSRSTnOE = 0x4; + nSRST = 0x08; + + high_output = 0x0; + high_direction = 0x0f; + + /* nTRST is always push-pull */ + high_output &= ~nTRSTnOE; + high_output |= nTRST; + + /* nSRST is always open-drain */ + 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 */ + 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 'sheevaplug' layout"); + return ERROR_JTAG_INIT_FAILED; + } + + return ERROR_OK; +} + +static int cortino_jtag_init(void) +{ + uint8_t buf[3]; + uint32_t 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 'cortino' 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; - DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]); - + 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)) { - ERROR("couldn't initialize FT2232 with 'turtelizer2' layout"); + LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout"); return ERROR_JTAG_INIT_FAILED; } - + return ERROR_OK; } -void olimex_jtag_blink(void) +static void olimex_jtag_blink(void) { /* Olimex ARM-USB-OCD has a LED connected to ACBUS3 * ACBUS3 is bit 3 of the GPIOH port @@ -1830,16 +2725,30 @@ void olimex_jtag_blink(void) /* set port pin low */ high_output |= 0x08; } - - BUFFER_ADD = 0x82; - BUFFER_ADD = high_output; - BUFFER_ADD = high_direction; + + buffer_write(0x82); + buffer_write(high_output); + buffer_write(high_direction); +} + + +static void flyswatter_jtag_blink(void) +{ + /* + * Flyswatter has two LEDs connected to ACBUS2 and ACBUS3 + */ + high_output ^= 0x0c; + + buffer_write(0x82); + buffer_write(high_output); + buffer_write(high_direction); } -void turtle_jtag_blink(void) + +static void turtle_jtag_blink(void) { - /* - * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3 + /* + * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3 */ if (high_output & 0x08) { @@ -1849,47 +2758,68 @@ void turtle_jtag_blink(void) { high_output = 0x08; } - - BUFFER_ADD = 0x82; - BUFFER_ADD = high_output; - BUFFER_ADD = high_direction; + + buffer_write(0x82); + buffer_write(high_output); + buffer_write(high_direction); } -int ft2232_quit(void) +static 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) + +static int ft2232_handle_device_desc_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc) { + char *cp; + char buf[200]; if (argc == 1) { ft2232_device_desc = strdup(args[0]); + cp = strchr(ft2232_device_desc, 0); + // under Win32, the FTD2XX driver appends an "A" to the end + // of the description, this examines the given desc + // and creates the 'missing' _A or non_A variable. + if ((cp[-1] == 'A') && (cp[-2]==' ')) { + // it was, so make this the "A" version. + ft2232_device_desc_A = ft2232_device_desc; + // and *CREATE* the non-A version. + strcpy(buf, ft2232_device_desc); + cp = strchr(buf, 0); + cp[-2] = 0; + ft2232_device_desc = strdup(buf); + } else { + // A not defined + // so create it + sprintf(buf, "%s A", ft2232_device_desc); + ft2232_device_desc_A = strdup(buf); + } } else { - ERROR("expected exactly one argument to ft2232_device_desc "); + 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) + +static int ft2232_handle_serial_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc) { if (argc == 1) { @@ -1897,13 +2827,14 @@ int ft2232_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, c } else { - ERROR("expected exactly one argument to ft2232_serial "); + 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) + +static int ft2232_handle_layout_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc) { if (argc == 0) return ERROR_OK; @@ -1914,31 +2845,205 @@ int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, c 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) { - WARNING("ignoring extra IDs in ft2232_vid_pid " - "(maximum is %d pairs)", MAX_USB_IDS); - argc = MAX_USB_IDS*2; +static int ft2232_handle_vid_pid_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc) +{ + 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)) { - WARNING("incomplete ft2232_vid_pid configuration directive"); + LOG_WARNING("incomplete ft2232_vid_pid configuration directive"); if (argc < 2) - return ERROR_OK; + return ERROR_COMMAND_SYNTAX_ERROR; + // remove the incomplete trailing id + argc -= 1; } - 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); + int i; + int retval = ERROR_OK; + for (i = 0; i < argc; i += 2) + { + retval = parse_u16(args[i], &ft2232_vid[i >> 1]); + if (ERROR_OK != retval) + break; + retval = parse_u16(args[i + 1], &ft2232_pid[i >> 1]); + if (ERROR_OK != retval) + break; } + /* * Explicitly terminate, in case there are multiples instances of * ft2232_vid_pid. */ ft2232_vid[i >> 1] = ft2232_pid[i >> 1] = 0; + return retval; +} + + +static 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; +} + + +static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd) +{ + int retval = 0; + + /* 7 bits of either ones or zeros. */ + uint8_t tms = (tap_get_state() == TAP_RESET ? 0x7F : 0x00); + + while (num_cycles > 0) + { + /* the command 0x4b, "Clock Data to TMS/CS Pin (no Read)" handles + * at most 7 bits per invocation. Here we invoke it potentially + * several times. + */ + int bitcount_per_command = (num_cycles > 7) ? 7 : num_cycles; + + if (ft2232_buffer_size + 3 >= FT2232_BUFFER_SIZE) + { + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; + + first_unsent = cmd; + } + + /* there are no state transitions in this code, so omit state tracking */ + + /* command "Clock Data to TMS/CS Pin (no Read)" */ + buffer_write(0x4b); + + /* scan 7 bit */ + buffer_write(bitcount_per_command - 1); + + /* TMS data bits are either all zeros or ones to stay in the current stable state */ + buffer_write(tms); + + require_send = 1; + + num_cycles -= bitcount_per_command; + } + + return retval; +} + + +/* --------------------------------------------------------------------- + * Support for IceBear JTAG adapter from Section5: + * http://section5.ch/icebear + * + * Author: Sten, debian@sansys-electronic.com + */ + +/* Icebear pin layout + * + * ADBUS5 (nEMU) nSRST | 2 1| GND (10k->VCC) + * GND GND | 4 3| n.c. + * ADBUS3 TMS | 6 5| ADBUS6 VCC + * ADBUS0 TCK | 8 7| ADBUS7 (GND) + * ADBUS4 nTRST |10 9| ACBUS0 (GND) + * ADBUS1 TDI |12 11| ACBUS1 (GND) + * ADBUS2 TDO |14 13| GND GND + * + * ADBUS0 O L TCK ACBUS0 GND + * ADBUS1 O L TDI ACBUS1 GND + * ADBUS2 I TDO ACBUS2 n.c. + * ADBUS3 O H TMS ACBUS3 n.c. + * ADBUS4 O H nTRST + * ADBUS5 O H nSRST + * ADBUS6 - VCC + * ADBUS7 - GND + */ +static int icebear_jtag_init(void) { + uint8_t buf[3]; + uint32_t bytes_written; + + low_direction = 0x0b; /* output: TCK TDI TMS; input: TDO */ + low_output = 0x08; /* high: TMS; low: TCK TDI */ + nTRST = 0x10; + nSRST = 0x20; + + enum reset_types jtag_reset_config = jtag_get_reset_config(); + if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0) { + low_direction &= ~nTRST; /* nTRST high impedance */ + } + else { + low_direction |= nTRST; + low_output |= nTRST; + } + + low_direction |= nSRST; + low_output |= nSRST; + + /* initialize low byte for jtag */ + buf[0] = 0x80; /* command "set data bits low byte" */ + buf[1] = low_output; + buf[2] = low_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 'IceBear' layout (low)"); + return ERROR_JTAG_INIT_FAILED; + } + + high_output = 0x0; + high_direction = 0x00; + + + /* 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 'IceBear' layout (high)"); + return ERROR_JTAG_INIT_FAILED; + } + return ERROR_OK; } + +static void icebear_jtag_reset(int trst, int srst) { + + if (trst == 1) { + low_direction |= nTRST; + low_output &= ~nTRST; + } + else if (trst == 0) { + enum reset_types jtag_reset_config = jtag_get_reset_config(); + if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0) + low_direction &= ~nTRST; + else + low_output |= nTRST; + } + + if (srst == 1) { + low_output &= ~nSRST; + } + else if (srst == 0) { + low_output |= nSRST; + } + + /* command "set data bits low byte" */ + buffer_write(0x80); + buffer_write(low_output); + buffer_write(low_direction); + + LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction); +}