Remove since long deprecated ft2232 driver

Purge all legacy interface configurations so there's no more confusion
over which one to use.

Also remove doc/INSTALL.txt which mentions ft2232 but otherwise just
duplicates what INSTALL says.

Change-Id: Ic94f808f123d4917e600b79309f1272c78a7bb11
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3236
Tested-by: jenkins
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>

4 files changed, 1 insertions, 4324 deletions

diff --git a/src/jtag/drivers/Makefile.am b/src/jtag/drivers/Makefile.am
index c81c08e4..4c4e7745 100644
--- a/src/jtag/drivers/Makefile.am
+++ b/src/jtag/drivers/Makefile.am
@@ -60,9 +60,6 @@ endif
 if DUMMY
 DRIVERFILES += dummy.c
 endif
-if FT2232_DRIVER
-DRIVERFILES += ft2232.c
-endif
 if FTDI
 DRIVERFILES += ftdi.c mpsse.c
 endif
diff --git a/src/jtag/drivers/ft2232.c b/src/jtag/drivers/ft2232.c
deleted file mode 100644
index 621da8e2..00000000
--- a/src/jtag/drivers/ft2232.c
+++ /dev/null
@@ -1,4308 +0,0 @@
-/***************************************************************************
-*   Copyright (C) 2009 by Øyvind Harboe                                   *
-*	Øyvind Harboe <oyvind.harboe@zylin.com>                               *
-*                                                                         *
-*   Copyright (C) 2009 by SoftPLC Corporation.  http://softplc.com        *
-*	Dick Hollenbeck <dick@softplc.com>                                    *
-*                                                                         *
-*   Copyright (C) 2004, 2006 by Dominic Rath                              *
-*   Dominic.Rath@gmx.de                                                   *
-*                                                                         *
-*   Copyright (C) 2008 by Spencer Oliver                                  *
-*   spen@spen-soft.co.uk                                                  *
-*                                                                         *
-*   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, see <http://www.gnu.org/licenses/>. *
-***************************************************************************/
-
-/**
- * @file
- * JTAG adapters based on the FT2232 full and high speed USB parts are
- * popular low cost JTAG debug solutions.  Many FT2232 based JTAG adapters
- * are discrete, but development boards may integrate them as alternatives
- * to more capable (and expensive) third party JTAG pods.
- *
- * JTAG uses only one of the two communications channels ("MPSSE engines")
- * on these devices.  Adapters based on FT4232 parts have four ports/channels
- * (A/B/C/D), instead of just two (A/B).
- *
- * Especially on development boards integrating one of these chips (as
- * opposed to discrete pods/dongles), the additional channels can be used
- * for a variety of purposes, but OpenOCD only uses one channel at a time.
- *
- *  - As a USB-to-serial adapter for the target's console UART ...
- *    which may be able to support ROM boot loaders that load initial
- *    firmware images to flash (or SRAM).
- *
- *  - On systems which support ARM's SWD in addition to JTAG, or instead
- *    of it, that second port can be used for reading SWV/SWO trace data.
- *
- *  - Additional JTAG links, e.g. to a CPLD or * FPGA.
- *
- * FT2232 based JTAG adapters are "dumb" not "smart", because most JTAG
- * request/response interactions involve round trips over the USB link.
- * A "smart" JTAG adapter has intelligence close to the scan chain, so it
- * can for example poll quickly for a status change (usually taking on the
- * order of microseconds not milliseconds) before beginning a queued
- * transaction which require the previous one to have completed.
- *
- * There are dozens of adapters of this type, differing in details which
- * this driver needs to understand.  Those "layout" details are required
- * as part of FT2232 driver configuration.
- *
- * 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
- *
- * Also note the issue with code 0x4b (clock data to TMS) noted in
- * http://developer.intra2net.com/mailarchive/html/libftdi/2009/msg00292.html
- * which can affect longer JTAG state paths.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-/* project specific includes */
-#include <jtag/interface.h>
-#include <transport/transport.h>
-#include <helper/time_support.h>
-
-#if IS_CYGWIN == 1
-#include <windows.h>
-#endif
-
-#include <assert.h>
-
-#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
-#include <ftd2xx.h>
-#include "ftd2xx_common.h"
-
-enum ftdi_interface {
-	INTERFACE_ANY = 0,
-	INTERFACE_A   = 1,
-	INTERFACE_B   = 2,
-	INTERFACE_C   = 3,
-	INTERFACE_D   = 4
-};
-
-#elif BUILD_FT2232_LIBFTDI == 1
-#include <ftdi.h>
-#endif
-
-/* max TCK for the high speed devices 30000 kHz */
-#define	FTDI_x232H_MAX_TCK	30000
-/* max TCK for the full speed devices 6000 kHz */
-#define FTDI_2232C_MAX_TCK 6000
-/* this speed value tells that RTCK is requested */
-#define RTCK_SPEED -1
-
-/*
- * On my Athlon XP 1900+ EHCI host with FT2232H JTAG dongle I get read timeout
- * errors with a retry count of 100. Increasing it solves the problem for me.
- *	- Dimitar
- *
- * FIXME There's likely an issue with the usb_read_timeout from libftdi.
- * Fix that (libusb? kernel? libftdi? here?) and restore the retry count
- * to something sane.
- */
-#define LIBFTDI_READ_RETRY_COUNT		2000
-
-#ifndef BUILD_FT2232_HIGHSPEED
- #if BUILD_FT2232_FTD2XX == 1
-	enum { FT_DEVICE_2232H = 6, FT_DEVICE_4232H, FT_DEVICE_232H };
- #elif BUILD_FT2232_LIBFTDI == 1
-	enum ftdi_chip_type { TYPE_2232H = 4, TYPE_4232H = 5, TYPE_232H = 6 };
- #endif
-#endif
-
-/**
- * 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.
- */
-static int ft2232_stableclocks(int num_cycles, struct jtag_command *cmd);
-
-static char *ft2232_device_desc_A;
-static char *ft2232_device_desc;
-static char *ft2232_serial;
-static uint8_t ft2232_latency = 2;
-static unsigned ft2232_max_tck = FTDI_2232C_MAX_TCK;
-static int ft2232_channel = INTERFACE_ANY;
-
-#define MAX_USB_IDS 8
-/* vid = pid = 0 marks the end of the list */
-static uint16_t ft2232_vid[MAX_USB_IDS + 1] = { 0x0403, 0 };
-static uint16_t ft2232_pid[MAX_USB_IDS + 1] = { 0x6010, 0 };
-
-struct ft2232_layout {
-	const char *name;
-	int (*init)(void);
-	void (*reset)(int trst, int srst);
-	void (*blink)(void);
-	int channel;
-};
-
-/* init procedures for supported layouts */
-static int usbjtag_init(void);
-static int jtagkey_init(void);
-static int lm3s811_jtag_init(void);
-static int icdi_jtag_init(void);
-static int olimex_jtag_init(void);
-static int flyswatter1_init(void);
-static int flyswatter2_init(void);
-static int minimodule_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);
-static int signalyzer_init(void);
-static int signalyzer_h_init(void);
-static int ktlink_init(void);
-static int redbee_init(void);
-static int lisa_l_init(void);
-static int flossjtag_init(void);
-static int xds100v2_init(void);
-static int digilent_hs1_init(void);
-
-/* reset procedures for supported layouts */
-static void ftx23_reset(int trst, int srst);
-static void jtagkey_reset(int trst, int srst);
-static void olimex_jtag_reset(int trst, int srst);
-static void flyswatter1_reset(int trst, int srst);
-static void flyswatter2_reset(int trst, int srst);
-static void minimodule_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);
-static void signalyzer_h_reset(int trst, int srst);
-static void ktlink_reset(int trst, int srst);
-static void redbee_reset(int trst, int srst);
-static void xds100v2_reset(int trst, int srst);
-static void digilent_hs1_reset(int trst, int srst);
-
-/* blink procedures for layouts that support a blinking led */
-static void olimex_jtag_blink(void);
-static void flyswatter1_jtag_blink(void);
-static void flyswatter2_jtag_blink(void);
-static void turtle_jtag_blink(void);
-static void signalyzer_h_blink(void);
-static void ktlink_blink(void);
-static void lisa_l_blink(void);
-static void flossjtag_blink(void);
-
-/* common transport support options */
-
-/* static const char *jtag_and_swd[] = { "jtag", "swd", NULL }; */
-
-static const struct ft2232_layout  ft2232_layouts[] = {
-	{ .name = "usbjtag",
-		.init = usbjtag_init,
-		.reset = ftx23_reset,
-	},
-	{ .name = "jtagkey",
-		.init = jtagkey_init,
-		.reset = jtagkey_reset,
-	},
-	{ .name = "jtagkey_prototype_v1",
-		.init = jtagkey_init,
-		.reset = jtagkey_reset,
-	},
-	{ .name = "oocdlink",
-		.init = jtagkey_init,
-		.reset = jtagkey_reset,
-	},
-	{ .name = "signalyzer",
-		.init = signalyzer_init,
-		.reset = ftx23_reset,
-	},
-	{ .name = "evb_lm3s811",
-		.init = lm3s811_jtag_init,
-		.reset = ftx23_reset,
-	},
-	{ .name = "luminary_icdi",
-		.init = icdi_jtag_init,
-		.reset = ftx23_reset,
-	},
-	{ .name = "olimex-jtag",
-		.init = olimex_jtag_init,
-		.reset = olimex_jtag_reset,
-		.blink = olimex_jtag_blink
-	},
-	{ .name = "flyswatter",
-		.init = flyswatter1_init,
-		.reset = flyswatter1_reset,
-		.blink = flyswatter1_jtag_blink
-	},
-	{ .name = "flyswatter2",
-		.init = flyswatter2_init,
-		.reset = flyswatter2_reset,
-		.blink = flyswatter2_jtag_blink
-	},
-	{ .name = "minimodule",
-		.init = minimodule_init,
-		.reset = minimodule_reset,
-	},
-	{ .name = "turtelizer2",
-		.init = turtle_init,
-		.reset = turtle_reset,
-		.blink = turtle_jtag_blink
-	},
-	{ .name = "comstick",
-		.init = comstick_init,
-		.reset = comstick_reset,
-	},
-	{ .name = "stm32stick",
-		.init = stm32stick_init,
-		.reset = stm32stick_reset,
-	},
-	{ .name = "axm0432_jtag",
-		.init = axm0432_jtag_init,
-		.reset = axm0432_jtag_reset,
-	},
-	{ .name = "sheevaplug",
-		.init = sheevaplug_init,
-		.reset = sheevaplug_reset,
-	},
-	{ .name = "icebear",
-		.init = icebear_jtag_init,
-		.reset = icebear_jtag_reset,
-	},
-	{ .name = "cortino",
-		.init = cortino_jtag_init,
-		.reset = comstick_reset,
-	},
-	{ .name = "signalyzer-h",
-		.init = signalyzer_h_init,
-		.reset = signalyzer_h_reset,
-		.blink = signalyzer_h_blink
-	},
-	{ .name = "ktlink",
-		.init = ktlink_init,
-		.reset = ktlink_reset,
-		.blink = ktlink_blink
-	},
-	{ .name = "redbee-econotag",
-		.init = redbee_init,
-		.reset = redbee_reset,
-	},
-	{ .name = "redbee-usb",
-		.init = redbee_init,
-		.reset = redbee_reset,
-		.channel = INTERFACE_B,
-	},
-	{ .name = "lisa-l",
-		.init = lisa_l_init,
-		.reset = ftx23_reset,
-		.blink = lisa_l_blink,
-		.channel = INTERFACE_B,
-	},
-	{ .name = "flossjtag",
-		.init = flossjtag_init,
-		.reset = ftx23_reset,
-		.blink = flossjtag_blink,
-	},
-	{ .name = "xds100v2",
-		.init = xds100v2_init,
-		.reset = xds100v2_reset,
-	},
-	{ .name = "digilent-hs1",
-		.init = digilent_hs1_init,
-		.reset = digilent_hs1_reset,
-		.channel = INTERFACE_A,
-	},
-	{ .name = NULL, /* END OF TABLE */ },
-};
-
-/* bitmask used to drive nTRST; usually a GPIOLx signal */
-static uint8_t nTRST;
-static uint8_t nTRSTnOE;
-/* bitmask used to drive nSRST; usually a GPIOLx signal */
-static uint8_t nSRST;
-static uint8_t nSRSTnOE;
-
-/** the layout being used with this debug session */
-static const struct ft2232_layout *layout;
-
-/** default bitmask values driven on DBUS: TCK/TDI/TDO/TMS and GPIOL(0..4) */
-static uint8_t low_output;
-
-/* note that direction bit == 1 means that signal is an output */
-
-/** default direction bitmask for DBUS: TCK/TDI/TDO/TMS and GPIOL(0..4) */
-static uint8_t low_direction;
-/** default value bitmask for CBUS GPIOH(0..4) */
-static uint8_t high_output;
-/** default direction bitmask for CBUS GPIOH(0..4) */
-static uint8_t high_direction;
-
-#if BUILD_FT2232_FTD2XX == 1
-static FT_HANDLE ftdih;
-static FT_DEVICE ftdi_device;
-#elif BUILD_FT2232_LIBFTDI == 1
-static struct ftdi_context ftdic;
-static enum ftdi_chip_type ftdi_device;
-#endif
-
-static struct jtag_command *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.
-*/
-
-#if BUILD_FT2232_FTD2XX == 1
-#define FT2232_BUFFER_READ_QUEUE_SIZE (64*64)
-#else
-#define FT2232_BUFFER_READ_QUEUE_SIZE (64*4)
-#endif
-
-#define FT2232_BUFFER_SIZE 131072
-
-static uint8_t *ft2232_buffer;
-static int ft2232_buffer_size;
-static int ft2232_read_pointer;
-static int ft2232_expect_read;
-
-/**
- * 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);
-
-	DEBUG_JTAG_IO("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);
-}
-
-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 = 0;
-	status = FT_Write(ftdih, buf, size, &dw_bytes_written);
-	if (status != FT_OK) {
-		*bytes_written = dw_bytes_written;
-		LOG_ERROR("FT_Write returned: %s", ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	} else
-		*bytes_written = dw_bytes_written;
-
-#elif BUILD_FT2232_LIBFTDI == 1
-	int retval = ftdi_write_data(&ftdic, buf, size);
-	if (retval < 0) {
-		*bytes_written = 0;
-		LOG_ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic));
-		return ERROR_JTAG_DEVICE_ERROR;
-	} else
-		*bytes_written = retval;
-
-#endif
-
-	if (*bytes_written != (uint32_t)size)
-		return ERROR_JTAG_DEVICE_ERROR;
-
-	return ERROR_OK;
-}
-
-static int ft2232_read(uint8_t *buf, uint32_t size, uint32_t *bytes_read)
-{
-#if BUILD_FT2232_FTD2XX == 1
-	DWORD dw_bytes_read;
-	FT_STATUS status;
-	int timeout = 5;
-	*bytes_read = 0;
-
-	while ((*bytes_read < size) && timeout--) {
-		status = FT_Read(ftdih, buf + *bytes_read, size -
-				*bytes_read, &dw_bytes_read);
-		if (status != FT_OK) {
-			*bytes_read = 0;
-			LOG_ERROR("FT_Read returned: %s", ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-		*bytes_read += dw_bytes_read;
-	}
-
-#elif BUILD_FT2232_LIBFTDI == 1
-	int retval;
-	int timeout = LIBFTDI_READ_RETRY_COUNT;
-	*bytes_read = 0;
-
-	while ((*bytes_read < size) && timeout--) {
-		retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read);
-		if (retval < 0) {
-			*bytes_read = 0;
-			LOG_ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-		*bytes_read += retval;
-	}
-
-#endif
-
-	if (*bytes_read < size) {
-		LOG_ERROR("couldn't read enough bytes from "
-			"FT2232 device (%i < %i)",
-			(unsigned)*bytes_read,
-			(unsigned)size);
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	return ERROR_OK;
-}
-
-static bool ft2232_device_is_highspeed(void)
-{
-#if BUILD_FT2232_FTD2XX == 1
-	return (ftdi_device == FT_DEVICE_2232H) || (ftdi_device == FT_DEVICE_4232H)
- #ifdef HAS_ENUM_FT232H
-		|| (ftdi_device == FT_DEVICE_232H)
- #endif
-	;
-#elif BUILD_FT2232_LIBFTDI == 1
-	return (ftdi_device == TYPE_2232H || ftdi_device == TYPE_4232H
- #ifdef HAS_ENUM_FT232H
-		|| ftdi_device == TYPE_232H
- #endif
-	);
-#endif
-}
-
-/*
- * Commands that only apply to the highspeed FTx232H devices (FT2232H, FT4232H, FT232H).
- * See chapter 6 in http://www.ftdichip.com/Documents/AppNotes/
- * AN_108_Command_Processor_for_MPSSE_and_MCU_Host_Bus_Emulation_Modes.pdf
- */
-
-static int ftx232h_adaptive_clocking(bool enable)
-{
-	uint8_t buf = enable ? 0x96 : 0x97;
-	LOG_DEBUG("%2.2x", buf);
-
-	uint32_t bytes_written;
-	int retval;
-
-	retval = ft2232_write(&buf, sizeof(buf), &bytes_written);
-	if (retval != ERROR_OK) {
-		LOG_ERROR("couldn't write command to %s adaptive clocking"
-			, enable ? "enable" : "disable");
-		return retval;
-	}
-
-	return ERROR_OK;
-}
-
-/**
- * Enable/disable the clk divide by 5 of the 60MHz master clock.
- * This result in a JTAG clock speed range of 91.553Hz-6MHz
- * respective 457.763Hz-30MHz.
- */
-static int ftx232h_clk_divide_by_5(bool enable)
-{
-	uint32_t bytes_written;
-	uint8_t buf = enable ?  0x8b : 0x8a;
-
-	if (ft2232_write(&buf, sizeof(buf), &bytes_written) != ERROR_OK) {
-		LOG_ERROR("couldn't write command to %s clk divide by 5"
-			, enable ? "enable" : "disable");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-	ft2232_max_tck = enable ? FTDI_2232C_MAX_TCK : FTDI_x232H_MAX_TCK;
-	LOG_INFO("max TCK change to: %u kHz", ft2232_max_tck);
-
-	return ERROR_OK;
-}
-
-static int ft2232_speed(int speed)
-{
-	uint8_t buf[3];
-	int retval;
-	uint32_t bytes_written;
-
-	retval = ERROR_OK;
-	bool enable_adaptive_clocking = (RTCK_SPEED == speed);
-	if (ft2232_device_is_highspeed())
-		retval = ftx232h_adaptive_clocking(enable_adaptive_clocking);
-	else if (enable_adaptive_clocking) {
-		LOG_ERROR("ft2232 device %lu does not support RTCK"
-			, (long unsigned int)ftdi_device);
-		return ERROR_FAIL;
-	}
-
-	if ((enable_adaptive_clocking) || (ERROR_OK != retval))
-		return retval;
-
-	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]);
-	retval = ft2232_write(buf, sizeof(buf), &bytes_written);
-	if (retval != ERROR_OK) {
-		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 = (RTCK_SPEED == speed) ? 0 : ft2232_max_tck / (1 + speed);
-
-	return ERROR_OK;
-}
-
-static int ft2232_khz(int khz, int *jtag_speed)
-{
-	if (khz == 0) {
-		if (ft2232_device_is_highspeed()) {
-			*jtag_speed = RTCK_SPEED;
-			return ERROR_OK;
-		} else {
-			LOG_DEBUG("RCLK not supported");
-			return ERROR_FAIL;
-		}
-	}
-
-	/* 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;
-}
-
-static void ft2232_end_state(tap_state_t state)
-{
-	if (tap_is_state_stable(state))
-		tap_set_end_state(state);
-	else {
-		LOG_ERROR("BUG: %s is not a stable end state", tap_state_name(state));
-		exit(-1);
-	}
-}
-
-static void ft2232_read_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;
-
-	while (num_bytes-- > 1) {
-		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;
-	/* 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);
-}
-
-static void ft2232_debug_dump_buffer(void)
-{
-	int i;
-	char line[256];
-	char *line_p = line;
-
-	for (i = 0; i < ft2232_buffer_size; i++) {
-		line_p += snprintf(line_p,
-				sizeof(line) - (line_p - line),
-				"%2.2x ",
-				ft2232_buffer[i]);
-		if (i % 16 == 15) {
-			LOG_DEBUG("%s", line);
-			line_p = line;
-		}
-	}
-
-	if (line_p != line)
-		LOG_DEBUG("%s", line);
-}
-
-static int ft2232_send_and_recv(struct jtag_command *first, struct jtag_command *last)
-{
-	struct jtag_command *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;
-#endif
-
-#ifdef _DEBUG_USB_COMMS_
-	LOG_DEBUG("write buffer (size %i):", ft2232_buffer_size);
-	ft2232_debug_dump_buffer();
-#endif
-
-#ifdef _DEBUG_USB_IO_
-	gettimeofday(&start, NULL);
-#endif
-
-	retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written);
-	if (retval != ERROR_OK) {
-		LOG_ERROR("couldn't write MPSSE commands to FT2232");
-		return retval;
-	}
-
-#ifdef _DEBUG_USB_IO_
-	gettimeofday(&inter, NULL);
-#endif
-
-	if (ft2232_expect_read) {
-		/* FIXME this "timeout" is never changed ... */
-		int timeout = LIBFTDI_READ_RETRY_COUNT;
-		ft2232_buffer_size = 0;
-
-#ifdef _DEBUG_USB_IO_
-		gettimeofday(&inter2, NULL);
-#endif
-
-		retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read);
-		if (retval != ERROR_OK) {
-			LOG_ERROR("couldn't read from FT2232");
-			return retval;
-		}
-
-#ifdef _DEBUG_USB_IO_
-		gettimeofday(&end, NULL);
-
-		timeval_subtract(&d_inter, &inter, &start);
-		timeval_subtract(&d_inter2, &inter2, &start);
-		timeval_subtract(&d_end, &end, &start);
-
-		LOG_INFO("inter: %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) {
-			LOG_ERROR("ft2232_expect_read (%i) != "
-				"ft2232_buffer_size (%i) "
-				"(%i retries)",
-				ft2232_expect_read,
-				ft2232_buffer_size,
-				LIBFTDI_READ_RETRY_COUNT - timeout);
-			ft2232_debug_dump_buffer();
-
-			exit(-1);
-		}
-
-#ifdef _DEBUG_USB_COMMS_
-		LOG_DEBUG("read buffer (%i retries): %i bytes",
-			LIBFTDI_READ_RETRY_COUNT - timeout,
-			ft2232_buffer_size);
-		ft2232_debug_dump_buffer();
-#endif
-	}
-
-	ft2232_expect_read  = 0;
-	ft2232_read_pointer = 0;
-
-	/* return ERROR_OK, unless a jtag_read_buffer returns a failed check
-	 * that wasn't handled by a caller-provided error handler
-	 */
-	retval = ERROR_OK;
-
-	cmd = first;
-	while (cmd != last) {
-		switch (cmd->type) {
-			case JTAG_SCAN:
-				type = jtag_scan_type(cmd->cmd.scan);
-				if (type != SCAN_OUT) {
-					scan_size = jtag_scan_size(cmd->cmd.scan);
-					buffer = calloc(DIV_ROUND_UP(scan_size, 8), 1);
-					ft2232_read_scan(type, buffer, scan_size);
-					if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)
-						retval = ERROR_JTAG_QUEUE_FAILED;
-					free(buffer);
-				}
-				break;
-
-			default:
-				break;
-		}
-
-		cmd = cmd->next;
-	}
-
-	ft2232_buffer_size = 0;
-
-	return retval;
-}
-
-/**
- * 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 state_count = 0;
-
-	assert((unsigned) num_states <= 32u);		/* tms_bits only holds 32 bits */
-
-	DEBUG_JTAG_IO("-");
-
-	/* this loop verifies that the path is legal and logs each state in the path */
-	while (num_states) {
-		unsigned char tms_byte = 0;		/* zero this on each MPSSE batch */
-		int bit_count = 0;
-		int num_states_batch = num_states > 7 ? 7 : num_states;
-
-		/* command "Clock Data to TMS/CS Pin (no Read)" */
-		buffer_write(0x4b);
-
-		/* number of states remaining */
-		buffer_write(num_states_batch - 1);
-
-		while (num_states_batch--) {
-			/* either TMS=0 or TMS=1 must work ... */
-			if (tap_state_transition(tap_get_state(), false) == path[state_count])
-				buf_set_u32(&tms_byte, bit_count++, 1, 0x0);
-			else if (tap_state_transition(tap_get_state(), true) == path[state_count])
-				buf_set_u32(&tms_byte, bit_count++, 1, 0x1);
-
-			/* ... or else the caller goofed BADLY */
-			else {
-				LOG_ERROR("BUG: %s -> %s isn't a valid "
-					"TAP state transition",
-					tap_state_name(tap_get_state()),
-					tap_state_name(path[state_count]));
-				exit(-1);
-			}
-
-			tap_set_state(path[state_count]);
-			state_count++;
-			num_states--;
-		}
-
-		buffer_write(tms_byte);
-	}
-	tap_set_end_state(tap_get_state());
-}
-
-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 last_bit;
-
-	if (!ir_scan) {
-		if (tap_get_state() != TAP_DRSHIFT)
-			move_to_state(TAP_DRSHIFT);
-	} else {
-		if (tap_get_state() != TAP_IRSHIFT)
-			move_to_state(TAP_IRSHIFT);
-	}
-
-	/* 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_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_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_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_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) {
-				buffer_write(buffer[cur_byte++]);
-				bits_left -= 8;
-			}
-		} else /* (type == SCAN_IN) */
-			bits_left -= 8 * (thisrun_bytes);
-	}
-
-	/* the most signifcant bit is scanned during TAP movement */
-	if (type != SCAN_IN)
-		last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
-	else
-		last_bit = 0;
-
-	/* process remaining bits but the last one */
-	if (bits_left > 1) {
-		if (type == SCAN_IO) {
-			/* Clock Data Bits In and Out LSB First */
-			buffer_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_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_write(0x2a);
-			/* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
-		}
-
-		buffer_write(bits_left - 2);
-		if (type != SCAN_IN)
-			buffer_write(buffer[cur_byte]);
-	}
-
-	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_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_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_write(0x2a);
-			/* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
-		}
-		buffer_write(0x0);
-		if (type != SCAN_IN)
-			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 */
-			mpsse_cmd = 0x6b;
-		} 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) */
-			mpsse_cmd = 0x4b;
-		}
-
-		DEBUG_JTAG_IO("finish %s", (type == SCAN_OUT) ? "without read" : "via PAUSE");
-		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());
-}
-
-static int ft2232_large_scan(struct scan_command *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 last_bit;
-	uint8_t *receive_buffer  = malloc(DIV_ROUND_UP(scan_size, 8));
-	uint8_t *receive_pointer = receive_buffer;
-	uint32_t bytes_written;
-	uint32_t bytes_read;
-	int retval;
-	int thisrun_read = 0;
-
-	if (!receive_buffer) {
-		LOG_ERROR("failed to allocate memory");
-		exit(-1);
-	}
-
-	if (cmd->ir_scan) {
-		LOG_ERROR("BUG: large IR scans are not supported");
-		exit(-1);
-	}
-
-	if (tap_get_state() != TAP_DRSHIFT)
-		move_to_state(TAP_DRSHIFT);
-
-	retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written);
-	if (retval != ERROR_OK) {
-		LOG_ERROR("couldn't write MPSSE commands to FT2232");
-		exit(-1);
-	}
-	LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
-		ft2232_buffer_size, (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_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_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_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_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) {
-				buffer_write(buffer[cur_byte]);
-				cur_byte++;
-				bits_left -= 8;
-			}
-		} else /* (type == SCAN_IN) */
-			bits_left -= 8 * (thisrun_bytes);
-
-		retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written);
-		if (retval != ERROR_OK) {
-			LOG_ERROR("couldn't write MPSSE commands to FT2232");
-			exit(-1);
-		}
-		LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
-			ft2232_buffer_size,
-			(int)bytes_written);
-		ft2232_buffer_size = 0;
-
-		if (type != SCAN_OUT) {
-			retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read);
-			if (retval != ERROR_OK) {
-				LOG_ERROR("couldn't read from FT2232");
-				exit(-1);
-			}
-			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;
-	else
-		last_bit = 0;
-
-	/* process remaining bits but the last one */
-	if (bits_left > 1) {
-		if (type == SCAN_IO) {
-			/* Clock Data Bits In and Out LSB First */
-			buffer_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_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_write(0x2a);
-			/* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
-		}
-		buffer_write(bits_left - 2);
-		if (type != SCAN_IN)
-			buffer_write(buffer[cur_byte]);
-
-		if (type != SCAN_OUT)
-			thisrun_read += 2;
-	}
-
-	if (tap_get_end_state() == TAP_DRSHIFT) {
-		if (type == SCAN_IO) {
-			/* Clock Data Bits In and Out LSB First */
-			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_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_write(0x2a);
-			/* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
-		}
-		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 */
-			mpsse_cmd = 0x6b;
-			/* LOG_DEBUG("added TMS scan (read)"); */
-		} else {
-			/* Clock Data to TMS/CS Pin (no Read) */
-			mpsse_cmd = 0x4b;
-			/* LOG_DEBUG("added TMS scan (no read)"); */
-		}
-
-		DEBUG_JTAG_IO("finish, %s", (type == SCAN_OUT) ? "no read" : "read");
-		clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit);
-	}
-
-	if (type != SCAN_OUT)
-		thisrun_read += 1;
-
-	retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written);
-	if (retval != ERROR_OK) {
-		LOG_ERROR("couldn't write MPSSE commands to FT2232");
-		exit(-1);
-	}
-	LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
-		ft2232_buffer_size,
-		(int)bytes_written);
-	ft2232_buffer_size = 0;
-
-	if (type != SCAN_OUT) {
-		retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read);
-		if (retval != ERROR_OK) {
-			LOG_ERROR("couldn't read from FT2232");
-			exit(-1);
-		}
-		LOG_DEBUG("thisrun_read: %i, bytes_read: %i",
-			thisrun_read,
-			(int)bytes_read);
-	}
-
-	free(receive_buffer);
-
-	return ERROR_OK;
-}
-
-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 (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 += DIV_ROUND_UP(num_bytes, 65536) * 3;
-
-		/* remaining bits - 1 (up to 7) */
-		predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
-	} else {/* host to device, or bidirectional
-		 * complete bytes */
-		predicted_size += num_bytes + DIV_ROUND_UP(num_bytes, 65536) * 3;
-
-		/* remaining bits -1 (up to 7) */
-		predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
-	}
-
-	return predicted_size;
-}
-
-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 +=
-			(DIV_ROUND_UP(scan_size, 8) > 1) ? (DIV_ROUND_UP(scan_size, 8) - 1) : 0;
-
-		/* remaining bits - 1 */
-		predicted_size += ((scan_size - 1) % 8) ? 1 : 0;
-
-		/* last bit (from TMS scan) */
-		predicted_size += 1;
-	}
-
-	/* LOG_DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size); */
-
-	return predicted_size;
-}
-
-/* semi-generic FT2232/FT4232 reset code */
-static void ftx23_reset(int trst, int srst)
-{
-	enum reset_types jtag_reset_config = jtag_get_reset_config();
-	if (trst == 1) {
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-			low_direction |= nTRSTnOE;	/* switch to output pin (output is low) */
-		else
-			low_output &= ~nTRST;		/* switch output low */
-	} else if (trst == 0) {
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-			low_direction &= ~nTRSTnOE;	/* switch to input pin (high-Z + internal
-							 *and external pullup) */
-		else
-			low_output |= nTRST;		/* switch output high */
-	}
-
-	if (srst == 1) {
-		if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-			low_output &= ~nSRST;		/* switch output low */
-		else
-			low_direction |= nSRSTnOE;	/* switch to output pin (output is low) */
-	} else if (srst == 0) {
-		if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-			low_output |= nSRST;		/* switch output high */
-		else
-			low_direction &= ~nSRSTnOE;	/* switch to input pin (high-Z) */
-	}
-
-	/* command "set data bits low byte" */
-	buffer_write(0x80);
-	buffer_write(low_output);
-	buffer_write(low_direction);
-}
-
-static void jtagkey_reset(int trst, int srst)
-{
-	enum reset_types jtag_reset_config = jtag_get_reset_config();
-	if (trst == 1) {
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-			high_output &= ~nTRSTnOE;
-		else
-			high_output &= ~nTRST;
-	} else if (trst == 0) {
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-			high_output |= nTRSTnOE;
-		else
-			high_output |= nTRST;
-	}
-
-	if (srst == 1) {
-		if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-			high_output &= ~nSRST;
-		else
-			high_output &= ~nSRSTnOE;
-	} else if (srst == 0) {
-		if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-			high_output |= nSRST;
-		else
-			high_output |= nSRSTnOE;
-	}
-
-	/* command "set data bits high byte" */
-	buffer_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 olimex_jtag_reset(int trst, int srst)
-{
-	enum reset_types jtag_reset_config = jtag_get_reset_config();
-	if (trst == 1) {
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-			high_output &= ~nTRSTnOE;
-		else
-			high_output &= ~nTRST;
-	} else if (trst == 0) {
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-			high_output |= nTRSTnOE;
-		else
-			high_output |= nTRST;
-	}
-
-	if (srst == 1)
-		high_output |= nSRST;
-	else if (srst == 0)
-		high_output &= ~nSRST;
-
-	/* command "set data bits high byte" */
-	buffer_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 axm0432_jtag_reset(int trst, int srst)
-{
-	if (trst == 1) {
-		tap_set_state(TAP_RESET);
-		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 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);
-}
-
-static void flyswatter_reset(int trst, int srst)
-{
-	if (trst == 1)
-		low_output &= ~nTRST;
-	else if (trst == 0)
-		low_output |= nTRST;
-
-	if (srst == 1)
-		low_output |= nSRST;
-	else if (srst == 0)
-		low_output &= ~nSRST;
-
-	/* command "set data bits low byte" */
-	buffer_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 flyswatter1_reset(int trst, int srst)
-{
-	flyswatter_reset(trst, srst);
-}
-
-static void flyswatter2_reset(int trst, int srst)
-{
-	flyswatter_reset(trst, !srst);
-}
-
-static void minimodule_reset(int trst, int srst)
-{
-	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)
-{
-	if (trst == 1)
-		LOG_ERROR("Can't assert TRST: the adapter lacks this signal");
-
-	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 void redbee_reset(int trst, int srst)
-{
-	if (trst == 1) {
-		tap_set_state(TAP_RESET);
-		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 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);
-}
-
-static void xds100v2_reset(int trst, int srst)
-{
-	if (trst == 1) {
-		tap_set_state(TAP_RESET);
-		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 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);
-}
-
-static int ft2232_execute_runtest(struct jtag_command *cmd)
-{
-	int retval;
-	int i;
-	int predicted_size = 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 * DIV_ROUND_UP(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);
-
-		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;
-	DEBUG_JTAG_IO("runtest: %i, end in %s",
-		cmd->cmd.runtest->num_cycles,
-		tap_state_name(tap_get_end_state()));
-	return retval;
-}
-
-static int ft2232_execute_statemove(struct jtag_command *cmd)
-{
-	int predicted_size = 0;
-	int retval = ERROR_OK;
-
-	DEBUG_JTAG_IO("statemove end in %s",
-		tap_state_name(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);
-
-	/* For TAP_RESET, ignore the current recorded state.  It's often
-	 * wrong at server startup, and this transation is critical whenever
-	 * it's requested.
-	 */
-	if (tap_get_end_state() == TAP_RESET) {
-		clock_tms(0x4b,  0xff, 5, 0);
-		require_send = 1;
-
-		/* shortest-path move to desired end state */
-	} else if (tap_get_state() != tap_get_end_state()) {
-		move_to_state(tap_get_end_state());
-		require_send = 1;
-	}
-
-	return retval;
-}
-
-/**
- * Clock a bunch of TMS (or SWDIO) transitions, to change the JTAG
- * (or SWD) state machine.
- */
-static int ft2232_execute_tms(struct jtag_command *cmd)
-{
-	int retval = ERROR_OK;
-	unsigned num_bits = cmd->cmd.tms->num_bits;
-	const uint8_t *bits = cmd->cmd.tms->bits;
-	unsigned count;
-
-	DEBUG_JTAG_IO("TMS: %d bits", num_bits);
-
-	/* only send the maximum buffer size that FT2232C can handle */
-	count = 3 * DIV_ROUND_UP(num_bits, 4);
-	if (ft2232_buffer_size + 3*count + 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;
-	}
-
-	/* Shift out in batches of at most 6 bits; there's a report of an
-	 * FT2232 bug in this area, where shifting exactly 7 bits can make
-	 * problems with TMS signaling for the last clock cycle:
-	 *
-	 *    http://developer.intra2net.com/mailarchive/html/
-	 *		libftdi/2009/msg00292.html
-	 *
-	 * Command 0x4b is: "Clock Data to TMS/CS Pin (no Read)"
-	 *
-	 * Note that pathmoves in JTAG are not often seven bits, so that
-	 * isn't a particularly likely situation outside of "special"
-	 * signaling such as switching between JTAG and SWD modes.
-	 */
-	while (num_bits) {
-		if (num_bits <= 6) {
-			buffer_write(0x4b);
-			buffer_write(num_bits - 1);
-			buffer_write(*bits & 0x3f);
-			break;
-		}
-
-		/* Yes, this is lazy ... we COULD shift out more data
-		 * bits per operation, but doing it in nybbles is easy
-		 */
-		buffer_write(0x4b);
-		buffer_write(3);
-		buffer_write(*bits & 0xf);
-		num_bits -= 4;
-
-		count  = (num_bits > 4) ? 4 : num_bits;
-
-		buffer_write(0x4b);
-		buffer_write(count - 1);
-		buffer_write((*bits >> 4) & 0xf);
-		num_bits -= count;
-
-		bits++;
-	}
-
-	require_send = 1;
-	return retval;
-}
-
-static int ft2232_execute_pathmove(struct jtag_command *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 * DIV_ROUND_UP(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(struct jtag_command *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);
-	DEBUG_JTAG_IO("%s scan, %i bits, end in %s",
-		(cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size,
-		tap_state_name(tap_get_end_state()));
-	return retval;
-
-}
-
-static int ft2232_execute_reset(struct jtag_command *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;
-	}
-
-	if ((cmd->cmd.reset->trst == 1) ||
-	    (cmd->cmd.reset->srst && (jtag_get_reset_config() & RESET_SRST_PULLS_TRST)))
-		tap_set_state(TAP_RESET);
-
-	layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
-	require_send = 1;
-
-	DEBUG_JTAG_IO("trst: %i, srst: %i",
-		cmd->cmd.reset->trst, cmd->cmd.reset->srst);
-	return retval;
-}
-
-static int ft2232_execute_sleep(struct jtag_command *cmd)
-{
-	int retval;
-	retval = ERROR_OK;
-
-	DEBUG_JTAG_IO("sleep %" PRIi32, 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);
-	DEBUG_JTAG_IO("sleep %" PRIi32 " usec while in %s",
-		cmd->cmd.sleep->us,
-		tap_state_name(tap_get_state()));
-	return retval;
-}
-
-static int ft2232_execute_stableclocks(struct jtag_command *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;
-	DEBUG_JTAG_IO("clocks %i while in %s",
-		cmd->cmd.stableclocks->num_cycles,
-		tap_state_name(tap_get_state()));
-	return retval;
-}
-
-static int ft2232_execute_command(struct jtag_command *cmd)
-{
-	int retval;
-
-	switch (cmd->type) {
-		case JTAG_RESET:
-			retval = ft2232_execute_reset(cmd);
-			break;
-		case JTAG_RUNTEST:
-			retval = ft2232_execute_runtest(cmd);
-			break;
-		case JTAG_TLR_RESET:
-			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;
-		case JTAG_TMS:
-			retval = ft2232_execute_tms(cmd);
-			break;
-		default:
-			LOG_ERROR("BUG: unknown JTAG command type encountered");
-			retval = ERROR_JTAG_QUEUE_FAILED;
-			break;
-	}
-	return retval;
-}
-
-static int ft2232_execute_queue(void)
-{
-	struct jtag_command *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) {
-		/* fill the write buffer with the desired command */
-		if (ft2232_execute_command(cmd) != ERROR_OK)
-			retval = ERROR_JTAG_QUEUE_FAILED;
-		/* Start reading input before FT2232 TX buffer fills up.
-		 * Sometimes this happens because we don't know the
-		 * length of the last command before we execute it. So
-		 * we simple inform the user.
-		 */
-		cmd = cmd->next;
-
-		if (ft2232_expect_read >= FT2232_BUFFER_READ_QUEUE_SIZE) {
-			if (ft2232_expect_read > (FT2232_BUFFER_READ_QUEUE_SIZE+1))
-				LOG_DEBUG("read buffer size looks too high %d/%d",
-					ft2232_expect_read,
-					(FT2232_BUFFER_READ_QUEUE_SIZE+1));
-			if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
-				retval = ERROR_JTAG_QUEUE_FAILED;
-			first_unsent = cmd;
-		}
-	}
-
-	if (require_send > 0)
-		if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
-			retval = ERROR_JTAG_QUEUE_FAILED;
-
-	return retval;
-}
-
-#if BUILD_FT2232_FTD2XX == 1
-static int ft2232_init_ftd2xx(uint16_t vid, uint16_t pid, int more, int *try_more)
-{
-	FT_STATUS status;
-	DWORD deviceID;
-	char SerialNumber[16];
-	char Description[64];
-	DWORD openex_flags  = 0;
-	char *openex_string = NULL;
-	uint8_t latency_timer;
-
-	if (layout == NULL) {
-		LOG_WARNING("No ft2232 layout specified'");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)",
-			layout->name, vid, pid);
-
-#if IS_WIN32 == 0
-	/* Add non-standard Vid/Pid to the linux driver */
-	status = FT_SetVIDPID(vid, pid);
-	if (status != FT_OK)
-		LOG_WARNING("couldn't add %4.4x:%4.4x", vid, pid);
-
-#endif
-
-	if (ft2232_device_desc && ft2232_serial) {
-		LOG_WARNING(
-			"can't open by device description and serial number, giving precedence to serial");
-		ft2232_device_desc = NULL;
-	}
-
-	if (ft2232_device_desc) {
-		openex_string = ft2232_device_desc;
-		openex_flags  = FT_OPEN_BY_DESCRIPTION;
-	} else if (ft2232_serial) {
-		openex_string = ft2232_serial;
-		openex_flags  = FT_OPEN_BY_SERIAL_NUMBER;
-	} else {
-		LOG_ERROR("neither device description nor serial number specified");
-		LOG_ERROR(
-			"please add \"ft2232_device_desc <string>\" or \"ft2232_serial <string>\" to your .cfg file");
-
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	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'",
-					ft2232_device_desc,
-					ft2232_device_desc_A);
-			}
-		}
-	}
-
-	if (status != FT_OK) {
-		DWORD num_devices;
-
-		if (more) {
-			LOG_WARNING("unable to open ftdi device (trying more): %s",
-				ftd2xx_status_string(status));
-			*try_more = 1;
-			return ERROR_JTAG_INIT_FAILED;
-		}
-		LOG_ERROR("unable to open ftdi device: %s",
-			ftd2xx_status_string(status));
-		status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
-		if (status == FT_OK) {
-			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) {
-				LOG_ERROR("ListDevices: %" PRIu32, (uint32_t)num_devices);
-				for (i = 0; i < num_devices; i++)
-					LOG_ERROR("%" PRIu32 ": \"%s\"", i, desc_array[i]);
-			}
-
-			for (i = 0; i < num_devices; i++)
-				free(desc_array[i]);
-
-			free(desc_array);
-		} else
-			LOG_ERROR("ListDevices: NONE");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	status = FT_SetLatencyTimer(ftdih, ft2232_latency);
-	if (status != FT_OK) {
-		LOG_ERROR("unable to set latency timer: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	status = FT_GetLatencyTimer(ftdih, &latency_timer);
-	if (status != FT_OK) {
-		/* ftd2xx 1.04 (linux) has a bug when calling FT_GetLatencyTimer
-		 * so ignore errors if using this driver version */
-		DWORD dw_version;
-
-		status = FT_GetDriverVersion(ftdih, &dw_version);
-		LOG_ERROR("unable to get latency timer: %s",
-			ftd2xx_status_string(status));
-
-		if ((status == FT_OK) && (dw_version == 0x10004)) {
-			LOG_ERROR("ftd2xx 1.04 detected - this has known issues " \
-				"with FT_GetLatencyTimer, upgrade to a newer version");
-		} else
-			return ERROR_JTAG_INIT_FAILED;
-	} else
-		LOG_DEBUG("current latency timer: %i", latency_timer);
-
-	status = FT_SetTimeouts(ftdih, 5000, 5000);
-	if (status != FT_OK) {
-		LOG_ERROR("unable to set timeouts: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	status = FT_SetBitMode(ftdih, 0x0b, 2);
-	if (status != FT_OK) {
-		LOG_ERROR("unable to enable bit i/o mode: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	status = FT_GetDeviceInfo(ftdih, &ftdi_device, &deviceID,
-			SerialNumber, Description, NULL);
-	if (status != FT_OK) {
-		LOG_ERROR("unable to get FT_GetDeviceInfo: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_INIT_FAILED;
-	} else {
-		static const char *type_str[] = {
-			"BM", "AM", "100AX", "UNKNOWN", "2232C", "232R", "2232H", "4232H", "232H"
-		};
-		unsigned no_of_known_types = ARRAY_SIZE(type_str) - 1;
-		unsigned type_index = ((unsigned)ftdi_device <= no_of_known_types)
-			? ftdi_device : FT_DEVICE_UNKNOWN;
-		LOG_INFO("device: %" PRIu32 " \"%s\"", (uint32_t)ftdi_device, type_str[type_index]);
-		LOG_INFO("deviceID: %" PRIu32, (uint32_t)deviceID);
-		LOG_INFO("SerialNumber: %s", SerialNumber);
-		LOG_INFO("Description: %s", Description);
-	}
-
-	return ERROR_OK;
-}
-
-static int ft2232_purge_ftd2xx(void)
-{
-	FT_STATUS status;
-
-	status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX);
-	if (status != FT_OK) {
-		LOG_ERROR("error purging ftd2xx device: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-#endif	/* BUILD_FT2232_FTD2XX == 1 */
-
-#if BUILD_FT2232_LIBFTDI == 1
-static int ft2232_init_libftdi(uint16_t vid, uint16_t pid, int more, int *try_more, int channel)
-{
-	uint8_t latency_timer;
-
-	if (layout == NULL) {
-		LOG_WARNING("No ft2232 layout specified'");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	LOG_DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)",
-		layout->name, vid, pid);
-
-	if (ftdi_init(&ftdic) < 0)
-		return ERROR_JTAG_INIT_FAILED;
-
-	/* default to INTERFACE_A */
-	if (channel == INTERFACE_ANY)
-		channel = INTERFACE_A;
-	if (ftdi_set_interface(&ftdic, channel) < 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) {
-		if (more)
-			LOG_WARNING("unable to open ftdi device (trying more): %s",
-				ftdic.error_str);
-		else
-			LOG_ERROR("unable to open ftdi device: %s", ftdic.error_str);
-		*try_more = 1;
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	/* There is already a reset in ftdi_usb_open_desc, this should be redundant */
-	if (ftdi_usb_reset(&ftdic) < 0) {
-		LOG_ERROR("unable to reset ftdi device");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	if (ftdi_set_latency_timer(&ftdic, ft2232_latency) < 0) {
-		LOG_ERROR("unable to set latency timer");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0) {
-		LOG_ERROR("unable to get latency timer");
-		return ERROR_JTAG_INIT_FAILED;
-	} else
-		LOG_DEBUG("current latency timer: %i", latency_timer);
-
-	ftdi_set_bitmode(&ftdic, 0x0b, 2);	/* ctx, JTAG I/O mask */
-
-	ftdi_device = ftdic.type;
-	static const char *type_str[] = {
-		"AM", "BM", "2232C", "R", "2232H", "4232H", "232H", "Unknown"
-	};
-	unsigned no_of_known_types = ARRAY_SIZE(type_str) - 1;
-	unsigned type_index = ((unsigned)ftdi_device < no_of_known_types)
-		? ftdi_device : no_of_known_types;
-	LOG_DEBUG("FTDI chip type: %i \"%s\"", (int)ftdi_device, type_str[type_index]);
-	return ERROR_OK;
-}
-
-static int ft2232_purge_libftdi(void)
-{
-	if (ftdi_usb_purge_buffers(&ftdic) < 0) {
-		LOG_ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-#endif	/* BUILD_FT2232_LIBFTDI == 1 */
-
-static int ft2232_set_data_bits_low_byte(uint8_t value, uint8_t direction)
-{
-	uint8_t buf[3];
-	uint32_t bytes_written;
-
-	buf[0] = 0x80;		/* command "set data bits low byte" */
-	buf[1] = value;		/* value */
-	buf[2] = direction;	/* direction */
-
-	LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
-	if (ft2232_write(buf, sizeof(buf), &bytes_written) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize data bits low byte");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int ft2232_set_data_bits_high_byte(uint8_t value, uint8_t direction)
-{
-	uint8_t buf[3];
-	uint32_t bytes_written;
-
-	buf[0] = 0x82;		/* command "set data bits high byte" */
-	buf[1] = value;		/* value */
-	buf[2] = direction;	/* direction */
-
-	LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
-	if (ft2232_write(buf, sizeof(buf), &bytes_written) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize data bits high byte");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int ft2232_init(void)
-{
-	uint8_t buf[1];
-	int retval;
-	uint32_t bytes_written;
-
-	LOG_WARNING("Using DEPRECATED interface driver 'ft2232'");
-#if BUILD_FTDI
-	LOG_INFO("Consider using the 'ftdi' interface driver, with configuration files in interface/ftdi/...");
-#endif
-
-	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 (layout == NULL) {
-		LOG_WARNING("No ft2232 layout specified'");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	for (int i = 0; 1; i++) {
-		/*
-		 * "more indicates that there are more IDs to try, so we should
-		 * not print an error for an ID mismatch (but for anything
-		 * else, we should).
-		 *
-		 * try_more indicates that the error code returned indicates an
-		 * ID mismatch (and nothing else) and that we should proceeed
-		 * with the next ID pair.
-		 */
-		int more = ft2232_vid[i + 1] || ft2232_pid[i + 1];
-		int try_more = 0;
-
-#if BUILD_FT2232_FTD2XX == 1
-		retval = ft2232_init_ftd2xx(ft2232_vid[i], ft2232_pid[i],
-				more, &try_more);
-#elif BUILD_FT2232_LIBFTDI == 1
-		retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
-				more, &try_more, ft2232_channel);
-#endif
-		if (retval >= 0)
-			break;
-		if (!more || !try_more)
-			return retval;
-	}
-
-	ft2232_buffer_size = 0;
-	ft2232_buffer = malloc(FT2232_BUFFER_SIZE);
-
-	if (layout->init() != ERROR_OK)
-		return ERROR_JTAG_INIT_FAILED;
-
-	if (ft2232_device_is_highspeed()) {
-#ifndef BUILD_FT2232_HIGHSPEED
- #if BUILD_FT2232_FTD2XX == 1
-		LOG_WARNING(
-			"High Speed device found - You need a newer FTD2XX driver (version 2.04.16 or later)");
- #elif BUILD_FT2232_LIBFTDI == 1
-		LOG_WARNING(
-			"High Speed device found - You need a newer libftdi version (0.16 or later)");
- #endif
-#endif
-		/* make sure the legacy mode is disabled */
-		if (ftx232h_clk_divide_by_5(false) != ERROR_OK)
-			return ERROR_JTAG_INIT_FAILED;
-	}
-
-	buf[0] = 0x85;	/* Disconnect TDI/DO to TDO/DI for Loopback */
-	retval = ft2232_write(buf, 1, &bytes_written);
-	if (retval != ERROR_OK) {
-		LOG_ERROR("couldn't write to FT2232 to disable loopback");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-#if BUILD_FT2232_FTD2XX == 1
-	return ft2232_purge_ftd2xx();
-#elif BUILD_FT2232_LIBFTDI == 1
-	return ft2232_purge_libftdi();
-#endif
-
-	return ERROR_OK;
-}
-
-/** Updates defaults for DBUS signals:  the four JTAG signals
- * (TCK, TDI, TDO, TMS) and * the four GPIOL signals.
- */
-static inline void ftx232_dbus_init(void)
-{
-	low_output    = 0x08;
-	low_direction = 0x0b;
-}
-
-/** Initializes DBUS signals:  the four JTAG signals (TCK, TDI, TDO, TMS),
- * the four GPIOL signals.  Initialization covers value and direction,
- * as customized for each layout.
- */
-static int ftx232_dbus_write(void)
-{
-	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 */
-	} else {
-		low_direction |= nTRSTnOE;	/* nTRST output */
-		low_output |= nTRST;		/* nTRST = 1 */
-	}
-
-	if (jtag_reset_config & RESET_SRST_PUSH_PULL) {
-		low_direction |= nSRSTnOE;	/* nSRST output */
-		low_output |= nSRST;		/* nSRST = 1 */
-	} else {
-		low_direction &= ~nSRSTnOE;	/* nSRST input */
-		low_output &= ~nSRST;	/* nSRST = 0 */
-	}
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 DBUS");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int usbjtag_init(void)
-{
-	/*
-	 * NOTE:  This is now _specific_ to the "usbjtag" layout.
-	 * Don't try cram any more layouts into this.
-	 */
-	ftx232_dbus_init();
-
-	nTRST    = 0x10;
-	nTRSTnOE = 0x10;
-	nSRST    = 0x40;
-	nSRSTnOE = 0x40;
-
-	return ftx232_dbus_write();
-}
-
-static int lm3s811_jtag_init(void)
-{
-	ftx232_dbus_init();
-
-	/* There are multiple revisions of LM3S811 eval boards:
-	 * - Rev B (and older?) boards have no SWO trace support.
-	 * - Rev C boards add ADBUS_6 DBG_ENn and BDBUS_4 SWO_EN;
-	 *   they should use the "luminary_icdi" layout instead.
-	 */
-	nTRST = 0x0;
-	nTRSTnOE = 0x00;
-	nSRST = 0x20;
-	nSRSTnOE = 0x20;
-	low_output    = 0x88;
-	low_direction = 0x8b;
-
-	return ftx232_dbus_write();
-}
-
-static int icdi_jtag_init(void)
-{
-	ftx232_dbus_init();
-
-	/* Most Luminary eval boards support SWO trace output,
-	 * and should use this "luminary_icdi" layout.
-	 *
-	 * ADBUS 0..3 are used for JTAG as usual.  GPIOs are used
-	 * to switch between JTAG and SWD, or switch the ft2232 UART
-	 * on the second MPSSE channel/interface (BDBUS)
-	 * between (i) the stellaris UART (on Luminary boards)
-	 * or (ii) SWO trace data (generic).
-	 *
-	 * We come up in JTAG mode and may switch to SWD later (with
-	 * SWO/trace option if SWD is active).
-	 *
-	 * DBUS == GPIO-Lx
-	 * CBUS == GPIO-Hx
-	 */
-
-
-#define ICDI_JTAG_EN (1 << 7)		/* ADBUS 7 (a.k.a. DBGMOD) */
-#define ICDI_DBG_ENn (1 << 6)		/* ADBUS 6 */
-#define ICDI_SRST (1 << 5)		/* ADBUS 5 */
-
-
-	/* GPIOs on second channel/interface (UART) ... */
-#define ICDI_SWO_EN (1 << 4)		/* BDBUS 4 */
-#define ICDI_TX_SWO (1 << 1)		/* BDBUS 1 */
-#define ICDI_VCP_RX (1 << 0)		/* BDBUS 0 (to stellaris UART) */
-
-	nTRST = 0x0;
-	nTRSTnOE = 0x00;
-	nSRST = ICDI_SRST;
-	nSRSTnOE = ICDI_SRST;
-
-	low_direction |= ICDI_JTAG_EN | ICDI_DBG_ENn;
-	low_output    |= ICDI_JTAG_EN;
-	low_output    &= ~ICDI_DBG_ENn;
-
-	return ftx232_dbus_write();
-}
-
-static int signalyzer_init(void)
-{
-	ftx232_dbus_init();
-
-	nTRST    = 0x10;
-	nTRSTnOE = 0x10;
-	nSRST    = 0x20;
-	nSRSTnOE = 0x20;
-	return ftx232_dbus_write();
-}
-
-static int axm0432_jtag_init(void)
-{
-	low_output    = 0x08;
-	low_direction = 0x2b;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		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 byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'Dicarlo' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int redbee_init(void)
-{
-	low_output    = 0x08;
-	low_direction = 0x2b;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'redbee' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	nTRST    = 0x08;
-	nTRSTnOE = 0x0;		/* No output enable for TRST*/
-	nSRST    = 0x04;
-	nSRSTnOE = 0x0;		/* No output enable for SRST*/
-
-	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 redbee");
-	else
-		high_output |= nTRST;
-
-	if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-		LOG_ERROR("can't set nSRST to push-pull on redbee");
-	else
-		high_output |= nSRST;
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'redbee' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int jtagkey_init(void)
-{
-	low_output    = 0x08;
-	low_direction = 0x1b;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	if (strcmp(layout->name, "jtagkey") == 0) {
-		nTRST    = 0x01;
-		nTRSTnOE = 0x4;
-		nSRST    = 0x02;
-		nSRSTnOE = 0x08;
-	} else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0)
-		   || (strcmp(layout->name, "oocdlink") == 0)) {
-		nTRST    = 0x02;
-		nTRSTnOE = 0x1;
-		nSRST    = 0x08;
-		nSRSTnOE = 0x04;
-	} else {
-		LOG_ERROR("BUG: jtagkey_init called for non jtagkey layout");
-		exit(-1);
-	}
-
-	high_output    = 0x0;
-	high_direction = 0x0f;
-
-	enum reset_types jtag_reset_config = jtag_get_reset_config();
-	if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) {
-		high_output |= nTRSTnOE;
-		high_output &= ~nTRST;
-	} else {
-		high_output &= ~nTRSTnOE;
-		high_output |= nTRST;
-	}
-
-	if (jtag_reset_config & RESET_SRST_PUSH_PULL) {
-		high_output &= ~nSRSTnOE;
-		high_output |= nSRST;
-	} else {
-		high_output |= nSRSTnOE;
-		high_output &= ~nSRST;
-	}
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int olimex_jtag_init(void)
-{
-	low_output    = 0x08;
-	low_direction = 0x1b;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	nTRST    = 0x01;
-	nTRSTnOE = 0x4;
-	nSRST    = 0x02;
-	nSRSTnOE = 0x00;/* no output enable for nSRST */
-
-	high_output    = 0x0;
-	high_direction = 0x0f;
-
-	enum reset_types jtag_reset_config = jtag_get_reset_config();
-	if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) {
-		high_output |= nTRSTnOE;
-		high_output &= ~nTRST;
-	} else {
-		high_output &= ~nTRSTnOE;
-		high_output |= nTRST;
-	}
-
-	if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-		LOG_ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD");
-	else
-		high_output &= ~nSRST;
-
-	/* turn red LED on */
-	high_output |= 0x08;
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int flyswatter_init(int rev)
-{
-	low_output    = 0x18;
-	low_direction = 0x7b;
-
-	if ((rev < 0) || (rev > 3)) {
-		LOG_ERROR("bogus 'flyswatter' revision supplied (%i)", rev);
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	if (rev == 1)
-		low_direction |= 1 << 7;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		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;
-
-	if (rev == 1)
-		high_direction = 0x0c;
-	else
-		high_direction = 0x01;
-
-	/* turn red LED3 on, LED2 off */
-	high_output |= 0x08;
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int flyswatter1_init(void)
-{
-	return flyswatter_init(1);
-}
-
-static int flyswatter2_init(void)
-{
-	return flyswatter_init(2);
-}
-
-static int minimodule_init(void)
-{
-	low_output    = 0x18;	/* check if srst should be 1 or 0 initially. (0x08) (flyswatter was
-				 * 0x18) */
-	low_direction = 0xfb;	/* 0xfb; */
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'minimodule' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-
-	nSRST    = 0x20;
-
-	high_output    = 0x00;
-	high_direction = 0x05;
-
-	/* turn red LED3 on, LED2 off */
-	/* high_output |= 0x08; */
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'minimodule' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int turtle_init(void)
-{
-	low_output    = 0x08;
-	low_direction = 0x5b;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	nSRST = 0x40;
-
-	high_output    = 0x00;
-	high_direction = 0x0C;
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int comstick_init(void)
-{
-	low_output    = 0x08;
-	low_direction = 0x0b;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		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 byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int stm32stick_init(void)
-{
-	low_output    = 0x88;
-	low_direction = 0x8b;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		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 byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int sheevaplug_init(void)
-{
-	low_output = 0x08;
-	low_direction = 0x1b;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	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 byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int cortino_jtag_init(void)
-{
-	low_output    = 0x08;
-	low_direction = 0x1b;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		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 byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'cortino' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static int lisa_l_init(void)
-{
-	ftx232_dbus_init();
-
-	nTRST    = 0x10;
-	nTRSTnOE = 0x10;
-	nSRST    = 0x40;
-	nSRSTnOE = 0x40;
-
-	high_output = 0x00;
-	high_direction = 0x18;
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'lisa_l' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ftx232_dbus_write();
-}
-
-static int flossjtag_init(void)
-{
-	ftx232_dbus_init();
-
-	nTRST    = 0x10;
-	nTRSTnOE = 0x10;
-	nSRST    = 0x40;
-	nSRSTnOE = 0x40;
-
-	high_output = 0x00;
-	high_direction = 0x18;
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'Floss-JTAG' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ftx232_dbus_write();
-}
-
-/*
- * The reference schematic from TI for the XDS100v2 has a CPLD on which opens
- * the door for a number of different configurations
- *
- * Known Implementations:
- * http://processors.wiki.ti.com/images/9/93/TMS570LS20216_USB_STICK_Schematic.pdf
- *
- * http://processors.wiki.ti.com/index.php/XDS100 (rev2)
- *	* CLPD logic: Rising edge to enable outputs (XDS100_PWR_RST)
- *		* ACBUS3 to transition 0->1 (OE rising edge)
- *	* CPLD logic: Put the EMU0/1 pins in Hi-Z:
- *		* ADBUS5/GPIOL1 = EMU_EN = 1
- *		* ADBUS6/GPIOL2 = EMU0 = 0
- *		* ACBUS4/SPARE0 = EMU1 = 0
- *	* CPLD logic: Disable loopback
- *		* ACBUS6/SPARE2 = LOOPBACK = 0
- */
-#define XDS100_nEMU_EN  (1<<5)
-#define XDS100_nEMU0    (1<<6)
-
-#define XDS100_PWR_RST  (1<<3)
-#define XDS100_nEMU1    (1<<4)
-#define XDS100_LOOPBACK (1<<6)
-static int xds100v2_init(void)
-{
-	/* These are in the lower byte */
-	nTRST    = 0x10;
-	nTRSTnOE = 0x10;
-
-	/* These aren't actually used on 14 pin connectors
-	 * These are in the upper byte */
-	nSRST    = 0x01;
-	nSRSTnOE = 0x01;
-
-	low_output    = 0x08 | nTRST | XDS100_nEMU_EN;
-	low_direction = 0x0b | nTRSTnOE | XDS100_nEMU_EN | XDS100_nEMU0;
-
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'xds100v2' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	high_output = 0;
-	high_direction = nSRSTnOE | XDS100_LOOPBACK | XDS100_PWR_RST | XDS100_nEMU1;
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't put CPLD in to reset with 'xds100v2' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	high_output |= XDS100_PWR_RST;
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't bring CPLD out of reset with 'xds100v2' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static void olimex_jtag_blink(void)
-{
-	/* Olimex ARM-USB-OCD has a LED connected to ACBUS3
-	 * ACBUS3 is bit 3 of the GPIOH port
-	 */
-	high_output ^= 0x08;
-
-	buffer_write(0x82);
-	buffer_write(high_output);
-	buffer_write(high_direction);
-}
-
-static void flyswatter_jtag_blink(unsigned char led)
-{
-	buffer_write(0x82);
-	buffer_write(high_output ^ led);
-	buffer_write(high_direction);
-}
-
-static void flyswatter1_jtag_blink(void)
-{
-	/*
-	 * Flyswatter has two LEDs connected to ACBUS2 and ACBUS3
-	 */
-	flyswatter_jtag_blink(0xc);
-}
-
-static void flyswatter2_jtag_blink(void)
-{
-	/*
-	 * Flyswatter2 only has one LED connected to ACBUS2
-	 */
-	flyswatter_jtag_blink(0x4);
-}
-
-static void turtle_jtag_blink(void)
-{
-	/*
-	 * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
-	 */
-	if (high_output & 0x08)
-		high_output = 0x04;
-	else
-		high_output = 0x08;
-
-	buffer_write(0x82);
-	buffer_write(high_output);
-	buffer_write(high_direction);
-}
-
-static void lisa_l_blink(void)
-{
-	/*
-	 * Lisa/L has two LEDs connected to BCBUS3 and BCBUS4
-	 */
-	if (high_output & 0x10)
-		high_output = 0x08;
-	else
-		high_output = 0x10;
-
-	buffer_write(0x82);
-	buffer_write(high_output);
-	buffer_write(high_direction);
-}
-
-static void flossjtag_blink(void)
-{
-	/*
-	 * Floss-JTAG has two LEDs connected to ACBUS3 and ACBUS4
-	 */
-	if (high_output & 0x10)
-		high_output = 0x08;
-	else
-		high_output = 0x10;
-
-	buffer_write(0x82);
-	buffer_write(high_output);
-	buffer_write(high_direction);
-}
-
-static int ft2232_quit(void)
-{
-#if BUILD_FT2232_FTD2XX == 1
-
-	FT_Close(ftdih);
-#elif BUILD_FT2232_LIBFTDI == 1
-	ftdi_usb_close(&ftdic);
-
-	ftdi_deinit(&ftdic);
-#endif
-
-	free(ft2232_buffer);
-	ft2232_buffer = NULL;
-
-	return ERROR_OK;
-}
-
-COMMAND_HANDLER(ft2232_handle_device_desc_command)
-{
-	char *cp;
-	char buf[200];
-	if (CMD_ARGC == 1) {
-		ft2232_device_desc = strdup(CMD_ARGV[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 {
-			/* <space > A not defined
-			 * so create it */
-			sprintf(buf, "%s A", ft2232_device_desc);
-			ft2232_device_desc_A = strdup(buf);
-		}
-	} else
-		LOG_ERROR("expected exactly one argument to ft2232_device_desc <description>");
-
-	return ERROR_OK;
-}
-
-COMMAND_HANDLER(ft2232_handle_serial_command)
-{
-	if (CMD_ARGC == 1)
-		ft2232_serial = strdup(CMD_ARGV[0]);
-	else
-		return ERROR_COMMAND_SYNTAX_ERROR;
-
-	return ERROR_OK;
-}
-
-COMMAND_HANDLER(ft2232_handle_layout_command)
-{
-	if (CMD_ARGC != 1)
-		return ERROR_COMMAND_SYNTAX_ERROR;
-
-	if (layout) {
-		LOG_ERROR("already specified ft2232_layout %s",
-			layout->name);
-		return (strcmp(layout->name, CMD_ARGV[0]) != 0)
-		       ? ERROR_FAIL
-		       : ERROR_OK;
-	}
-
-	for (const struct ft2232_layout *l = ft2232_layouts; l->name; l++) {
-		if (strcmp(l->name, CMD_ARGV[0]) == 0) {
-			layout = l;
-			ft2232_channel = l->channel;
-			return ERROR_OK;
-		}
-	}
-
-	LOG_ERROR("No FT2232 layout '%s' found", CMD_ARGV[0]);
-	return ERROR_FAIL;
-}
-
-COMMAND_HANDLER(ft2232_handle_vid_pid_command)
-{
-	if (CMD_ARGC > MAX_USB_IDS * 2) {
-		LOG_WARNING("ignoring extra IDs in ft2232_vid_pid "
-			"(maximum is %d pairs)", MAX_USB_IDS);
-		CMD_ARGC = MAX_USB_IDS * 2;
-	}
-	if (CMD_ARGC < 2 || (CMD_ARGC & 1)) {
-		LOG_WARNING("incomplete ft2232_vid_pid configuration directive");
-		if (CMD_ARGC < 2)
-			return ERROR_COMMAND_SYNTAX_ERROR;
-		/* remove the incomplete trailing id */
-		CMD_ARGC -= 1;
-	}
-
-	unsigned i;
-	for (i = 0; i < CMD_ARGC; i += 2) {
-		COMMAND_PARSE_NUMBER(u16, CMD_ARGV[i], ft2232_vid[i >> 1]);
-		COMMAND_PARSE_NUMBER(u16, CMD_ARGV[i + 1], ft2232_pid[i >> 1]);
-	}
-
-	/*
-	 * Explicitly terminate, in case there are multiples instances of
-	 * ft2232_vid_pid.
-	 */
-	ft2232_vid[i >> 1] = ft2232_pid[i >> 1] = 0;
-
-	return ERROR_OK;
-}
-
-COMMAND_HANDLER(ft2232_handle_latency_command)
-{
-	if (CMD_ARGC == 1)
-		ft2232_latency = atoi(CMD_ARGV[0]);
-	else
-		return ERROR_COMMAND_SYNTAX_ERROR;
-
-	return ERROR_OK;
-}
-
-COMMAND_HANDLER(ft2232_handle_channel_command)
-{
-	if (CMD_ARGC == 1) {
-		ft2232_channel = atoi(CMD_ARGV[0]);
-		if (ft2232_channel < 0 || ft2232_channel > 4)
-			LOG_ERROR("ft2232_channel must be in the 0 to 4 range");
-	} else
-		LOG_ERROR("expected exactly one argument to ft2232_channel <ch>");
-
-	return ERROR_OK;
-}
-
-static int ft2232_stableclocks(int num_cycles, struct jtag_command *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)
-{
-	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 */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'IceBear' layout (low)");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	high_output    = 0x0;
-	high_direction = 0x00;
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		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);
-}
-
-/* ---------------------------------------------------------------------
- * Support for Signalyzer H2 and Signalyzer H4
- * JTAG adapter from Xverve Technologies Inc.
- * http://www.signalyzer.com or http://www.xverve.com
- *
- * Author: Oleg Seiljus, oleg@signalyzer.com
- */
-static unsigned char signalyzer_h_side;
-static unsigned int signalyzer_h_adapter_type;
-
-static int signalyzer_h_ctrl_write(int address, unsigned short value);
-
-#if BUILD_FT2232_FTD2XX == 1
-static int signalyzer_h_ctrl_read(int address, unsigned short *value);
-#endif
-
-#define SIGNALYZER_COMMAND_ADDR					128
-#define SIGNALYZER_DATA_BUFFER_ADDR				129
-
-#define SIGNALYZER_COMMAND_VERSION				0x41
-#define SIGNALYZER_COMMAND_RESET				0x42
-#define SIGNALYZER_COMMAND_POWERCONTROL_GET		0x50
-#define SIGNALYZER_COMMAND_POWERCONTROL_SET		0x51
-#define SIGNALYZER_COMMAND_PWM_SET				0x52
-#define SIGNALYZER_COMMAND_LED_SET				0x53
-#define SIGNALYZER_COMMAND_ADC					0x54
-#define SIGNALYZER_COMMAND_GPIO_STATE			0x55
-#define SIGNALYZER_COMMAND_GPIO_MODE			0x56
-#define SIGNALYZER_COMMAND_GPIO_PORT			0x57
-#define SIGNALYZER_COMMAND_I2C					0x58
-
-#define SIGNALYZER_CHAN_A						1
-#define SIGNALYZER_CHAN_B						2
-/* LEDS use channel C */
-#define SIGNALYZER_CHAN_C						4
-
-#define SIGNALYZER_LED_GREEN					1
-#define SIGNALYZER_LED_RED						2
-
-#define SIGNALYZER_MODULE_TYPE_EM_LT16_A		0x0301
-#define SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG		0x0302
-#define SIGNALYZER_MODULE_TYPE_EM_JTAG			0x0303
-#define SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P	0x0304
-#define SIGNALYZER_MODULE_TYPE_EM_JTAG_P		0x0305
-
-
-static int signalyzer_h_ctrl_write(int address, unsigned short value)
-{
-#if BUILD_FT2232_FTD2XX == 1
-	return FT_WriteEE(ftdih, address, value);
-#elif BUILD_FT2232_LIBFTDI == 1
-	return 0;
-#endif
-}
-
-#if BUILD_FT2232_FTD2XX == 1
-static int signalyzer_h_ctrl_read(int address, unsigned short *value)
-{
-	return FT_ReadEE(ftdih, address, value);
-}
-#endif
-
-static int signalyzer_h_led_set(unsigned char channel, unsigned char led,
-	int on_time_ms, int off_time_ms, unsigned char cycles)
-{
-	unsigned char on_time;
-	unsigned char off_time;
-
-	if (on_time_ms < 0xFFFF)
-		on_time = (unsigned char)(on_time_ms / 62);
-	else
-		on_time = 0xFF;
-
-	off_time = (unsigned char)(off_time_ms / 62);
-
-#if BUILD_FT2232_FTD2XX == 1
-	FT_STATUS status;
-
-	status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
-			((uint32_t)(channel << 8) | led));
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write  returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	status = signalyzer_h_ctrl_write((SIGNALYZER_DATA_BUFFER_ADDR + 1),
-			((uint32_t)(on_time << 8) | off_time));
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write  returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	status = signalyzer_h_ctrl_write((SIGNALYZER_DATA_BUFFER_ADDR + 2),
-			((uint32_t)cycles));
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write  returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
-				SIGNALYZER_COMMAND_LED_SET);
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write  returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	return ERROR_OK;
-#elif BUILD_FT2232_LIBFTDI == 1
-	int retval;
-
-	retval = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
-				((uint32_t)(channel << 8) | led));
-	if (retval < 0) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftdi_get_error_string(&ftdic));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	retval = signalyzer_h_ctrl_write((SIGNALYZER_DATA_BUFFER_ADDR + 1),
-			((uint32_t)(on_time << 8) | off_time));
-	if (retval < 0) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftdi_get_error_string(&ftdic));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	retval = signalyzer_h_ctrl_write((SIGNALYZER_DATA_BUFFER_ADDR + 2),
-			(uint32_t)cycles);
-	if (retval < 0) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftdi_get_error_string(&ftdic));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	retval = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
-			SIGNALYZER_COMMAND_LED_SET);
-	if (retval < 0) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftdi_get_error_string(&ftdic));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	return ERROR_OK;
-#endif
-}
-
-static int signalyzer_h_init(void)
-{
-#if BUILD_FT2232_FTD2XX == 1
-	FT_STATUS status;
-	int i;
-#endif
-
-	char *end_of_desc;
-
-	uint16_t read_buf[12] = { 0 };
-
-	/* turn on center green led */
-	signalyzer_h_led_set(SIGNALYZER_CHAN_C, SIGNALYZER_LED_GREEN,
-		0xFFFF, 0x00, 0x00);
-
-	/* determine what channel config wants to open
-	 * TODO: change me... current implementation is made to work
-	 * with openocd description parsing.
-	 */
-	end_of_desc = strrchr(ft2232_device_desc, 0x00);
-
-	if (end_of_desc) {
-		signalyzer_h_side = *(end_of_desc - 1);
-		if (signalyzer_h_side == 'B')
-			signalyzer_h_side = SIGNALYZER_CHAN_B;
-		else
-			signalyzer_h_side = SIGNALYZER_CHAN_A;
-	} else {
-		LOG_ERROR("No Channel was specified");
-		return ERROR_FAIL;
-	}
-
-	signalyzer_h_led_set(signalyzer_h_side, SIGNALYZER_LED_GREEN,
-		1000, 1000, 0xFF);
-
-#if BUILD_FT2232_FTD2XX == 1
-	/* read signalyzer versionining information */
-	status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
-			SIGNALYZER_COMMAND_VERSION);
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	for (i = 0; i < 10; i++) {
-		status = signalyzer_h_ctrl_read((SIGNALYZER_DATA_BUFFER_ADDR + i),
-				&read_buf[i]);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_read returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-	}
-
-	LOG_INFO("Signalyzer: ID info: { %.4x %.4x %.4x %.4x %.4x %.4x %.4x }",
-		read_buf[0], read_buf[1], read_buf[2], read_buf[3],
-		read_buf[4], read_buf[5], read_buf[6]);
-
-	/* set gpio register */
-	status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
-			(uint32_t)(signalyzer_h_side << 8));
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x0404);
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
-			SIGNALYZER_COMMAND_GPIO_STATE);
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	/* read adapter type information */
-	status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
-			((uint32_t)(signalyzer_h_side << 8) | 0x01));
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	status = signalyzer_h_ctrl_write(
-			(SIGNALYZER_DATA_BUFFER_ADDR + 1), 0xA000);
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	status = signalyzer_h_ctrl_write(
-			(SIGNALYZER_DATA_BUFFER_ADDR + 2), 0x0008);
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
-			SIGNALYZER_COMMAND_I2C);
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	usleep(100000);
-
-	status = signalyzer_h_ctrl_read(SIGNALYZER_COMMAND_ADDR, &read_buf[0]);
-	if (status != FT_OK) {
-		LOG_ERROR("signalyzer_h_ctrl_read returned: %s",
-			ftd2xx_status_string(status));
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	if (read_buf[0] != 0x0498)
-		signalyzer_h_adapter_type = 0x0000;
-	else {
-		for (i = 0; i < 4; i++) {
-			status = signalyzer_h_ctrl_read((SIGNALYZER_DATA_BUFFER_ADDR + i), &read_buf[i]);
-			if (status != FT_OK) {
-				LOG_ERROR("signalyzer_h_ctrl_read returned: %s",
-					ftd2xx_status_string(status));
-				return ERROR_JTAG_DEVICE_ERROR;
-			}
-		}
-
-		signalyzer_h_adapter_type = read_buf[0];
-	}
-
-#elif BUILD_FT2232_LIBFTDI == 1
-	/* currently libftdi does not allow reading individual eeprom
-	 * locations, therefore adapter type cannot be detected.
-	 * override with most common type
-	 */
-	signalyzer_h_adapter_type = SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG;
-#endif
-
-	enum reset_types jtag_reset_config = jtag_get_reset_config();
-
-	/* ADAPTOR: EM_LT16_A */
-	if (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_LT16_A) {
-		LOG_INFO("Signalyzer: EM-LT (16-channel level translator) "
-			"detected. (HW: %2x).", (read_buf[1] >> 8));
-
-		nTRST    = 0x10;
-		nTRSTnOE = 0x10;
-		nSRST    = 0x20;
-		nSRSTnOE = 0x20;
-
-		low_output     = 0x08;
-		low_direction  = 0x1b;
-
-		high_output    = 0x0;
-		high_direction = 0x0;
-
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) {
-			low_direction &= ~nTRSTnOE;	/* nTRST input */
-			low_output    &= ~nTRST;	/* nTRST = 0 */
-		} else {
-			low_direction |= nTRSTnOE;	/* nTRST output */
-			low_output    |= nTRST;		/* nTRST = 1 */
-		}
-
-		if (jtag_reset_config & RESET_SRST_PUSH_PULL) {
-			low_direction |= nSRSTnOE;	/* nSRST output */
-			low_output    |= nSRST;		/* nSRST = 1 */
-		} else {
-			low_direction &= ~nSRSTnOE;	/* nSRST input */
-			low_output    &= ~nSRST;	/* nSRST = 0 */
-		}
-
-#if BUILD_FT2232_FTD2XX == 1
-		/* enable power to the module */
-		status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
-				((uint32_t)(signalyzer_h_side << 8) | 0x01));
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
-				SIGNALYZER_COMMAND_POWERCONTROL_SET);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		/* set gpio mode register */
-		status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
-				(uint32_t)(signalyzer_h_side << 8));
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x0000);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR, SIGNALYZER_COMMAND_GPIO_MODE);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		/* set gpio register */
-		status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
-				(uint32_t)(signalyzer_h_side << 8));
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x4040);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
-				SIGNALYZER_COMMAND_GPIO_STATE);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-#endif
-	}
-	/* ADAPTOR: EM_ARM_JTAG, EM_ARM_JTAG_P, EM_JTAG, EM_JTAG_P */
-	else if ((signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG) ||
-		 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P) ||
-		 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG)  ||
-		 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG_P)) {
-		if (signalyzer_h_adapter_type
-		    == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG)
-			LOG_INFO("Signalyzer: EM-ARM-JTAG (ARM JTAG) "
-				"detected. (HW: %2x).", (read_buf[1] >> 8));
-		else if (signalyzer_h_adapter_type
-			 == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P)
-			LOG_INFO("Signalyzer: EM-ARM-JTAG_P "
-				"(ARM JTAG with PSU) detected. (HW: %2x).",
-				(read_buf[1] >> 8));
-		else if (signalyzer_h_adapter_type
-			 == SIGNALYZER_MODULE_TYPE_EM_JTAG)
-			LOG_INFO("Signalyzer: EM-JTAG (Generic JTAG) "
-				"detected. (HW: %2x).", (read_buf[1] >> 8));
-		else if (signalyzer_h_adapter_type
-			 == SIGNALYZER_MODULE_TYPE_EM_JTAG_P)
-			LOG_INFO("Signalyzer: EM-JTAG-P "
-				"(Generic JTAG with PSU) detected. (HW: %2x).",
-				(read_buf[1] >> 8));
-
-		nTRST          = 0x02;
-		nTRSTnOE       = 0x04;
-		nSRST          = 0x08;
-		nSRSTnOE       = 0x10;
-
-		low_output     = 0x08;
-		low_direction  = 0x1b;
-
-		high_output    = 0x0;
-		high_direction = 0x1f;
-
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) {
-			high_output |= nTRSTnOE;
-			high_output &= ~nTRST;
-		} else {
-			high_output &= ~nTRSTnOE;
-			high_output |= nTRST;
-		}
-
-		if (jtag_reset_config & RESET_SRST_PUSH_PULL) {
-			high_output &= ~nSRSTnOE;
-			high_output |= nSRST;
-		} else {
-			high_output |= nSRSTnOE;
-			high_output &= ~nSRST;
-		}
-
-#if BUILD_FT2232_FTD2XX == 1
-		/* enable power to the module */
-		status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
-				((uint32_t)(signalyzer_h_side << 8) | 0x01));
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
-				SIGNALYZER_COMMAND_POWERCONTROL_SET);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		/* set gpio mode register (IO_16 and IO_17 set as analog
-		 * inputs, other is gpio)
-		 */
-		status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
-				(uint32_t)(signalyzer_h_side << 8));
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x0060);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR, SIGNALYZER_COMMAND_GPIO_MODE);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		/* set gpio register (all inputs, for -P modules,
-		 * PSU will be turned off)
-		 */
-		status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
-				(uint32_t)(signalyzer_h_side << 8));
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x0000);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-
-		status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR, SIGNALYZER_COMMAND_GPIO_STATE);
-		if (status != FT_OK) {
-			LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
-				ftd2xx_status_string(status));
-			return ERROR_JTAG_DEVICE_ERROR;
-		}
-#endif
-	} else if (signalyzer_h_adapter_type == 0x0000) {
-		LOG_INFO("Signalyzer: No external modules were detected.");
-
-		nTRST    = 0x10;
-		nTRSTnOE = 0x10;
-		nSRST    = 0x20;
-		nSRSTnOE = 0x20;
-
-		low_output     = 0x08;
-		low_direction  = 0x1b;
-
-		high_output    = 0x0;
-		high_direction = 0x0;
-
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) {
-			low_direction &= ~nTRSTnOE;	/* nTRST input */
-			low_output    &= ~nTRST;	/* nTRST = 0 */
-		} else {
-			low_direction |= nTRSTnOE;	/* nTRST output */
-			low_output    |= nTRST;		/* nTRST = 1 */
-		}
-
-		if (jtag_reset_config & RESET_SRST_PUSH_PULL) {
-			low_direction |= nSRSTnOE;	/* nSRST output */
-			low_output    |= nSRST;		/* nSRST = 1 */
-		} else {
-			low_direction &= ~nSRSTnOE;	/* nSRST input */
-			low_output    &= ~nSRST;	/* nSRST = 0 */
-		}
-	} else {
-		LOG_ERROR("Unknown module type is detected: %.4x",
-			signalyzer_h_adapter_type);
-		return ERROR_JTAG_DEVICE_ERROR;
-	}
-
-	/* initialize low byte of controller for jtag operation */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize Signalyzer-H layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-#if BUILD_FT2232_FTD2XX == 1
-	if (ftdi_device == FT_DEVICE_2232H) {
-		/* initialize high byte of controller for jtag operation */
-		if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-			LOG_ERROR("couldn't initialize Signalyzer-H layout");
-			return ERROR_JTAG_INIT_FAILED;
-		}
-	}
-#elif BUILD_FT2232_LIBFTDI == 1
-	if (ftdi_device == TYPE_2232H) {
-		/* initialize high byte of controller for jtag operation */
-		if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-			LOG_ERROR("couldn't initialize Signalyzer-H layout");
-			return ERROR_JTAG_INIT_FAILED;
-		}
-	}
-#endif
-	return ERROR_OK;
-}
-
-static void signalyzer_h_reset(int trst, int srst)
-{
-	enum reset_types jtag_reset_config = jtag_get_reset_config();
-
-	/* ADAPTOR: EM_LT16_A */
-	if (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_LT16_A) {
-		if (trst == 1) {
-			if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-				/* switch to output pin (output is low) */
-				low_direction |= nTRSTnOE;
-			else
-				/* switch output low */
-				low_output &= ~nTRST;
-		} else if (trst == 0) {
-			if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-				/* switch to input pin (high-Z + internal
-				 * and external pullup) */
-				low_direction &= ~nTRSTnOE;
-			else
-				/* switch output high */
-				low_output |= nTRST;
-		}
-
-		if (srst == 1) {
-			if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-				/* switch output low */
-				low_output &= ~nSRST;
-			else
-				/* switch to output pin (output is low) */
-				low_direction |= nSRSTnOE;
-		} else if (srst == 0) {
-			if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-				/* switch output high */
-				low_output |= nSRST;
-			else
-				/* switch to input pin (high-Z) */
-				low_direction &= ~nSRSTnOE;
-		}
-
-		/* 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);
-	}
-	/* ADAPTOR: EM_ARM_JTAG,  EM_ARM_JTAG_P, EM_JTAG, EM_JTAG_P */
-	else if ((signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG) ||
-		 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P) ||
-		 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG)  ||
-		 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG_P)) {
-		if (trst == 1) {
-			if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-				high_output &= ~nTRSTnOE;
-			else
-				high_output &= ~nTRST;
-		} else if (trst == 0) {
-			if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-				high_output |= nTRSTnOE;
-			else
-				high_output |= nTRST;
-		}
-
-		if (srst == 1) {
-			if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-				high_output &= ~nSRST;
-			else
-				high_output &= ~nSRSTnOE;
-		} else if (srst == 0) {
-			if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-				high_output |= nSRST;
-			else
-				high_output |= nSRSTnOE;
-		}
-
-		/* command "set data bits high byte" */
-		buffer_write(0x82);
-		buffer_write(high_output);
-		buffer_write(high_direction);
-		LOG_INFO("trst: %i, srst: %i, high_output: 0x%2.2x, "
-			"high_direction: 0x%2.2x",
-			trst, srst, high_output, high_direction);
-	} else if (signalyzer_h_adapter_type == 0x0000) {
-		if (trst == 1) {
-			if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-				/* switch to output pin (output is low) */
-				low_direction |= nTRSTnOE;
-			else
-				/* switch output low */
-				low_output &= ~nTRST;
-		} else if (trst == 0) {
-			if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-				/* switch to input pin (high-Z + internal
-				 * and external pullup) */
-				low_direction &= ~nTRSTnOE;
-			else
-				/* switch output high */
-				low_output |= nTRST;
-		}
-
-		if (srst == 1) {
-			if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-				/* switch output low */
-				low_output &= ~nSRST;
-			else
-				/* switch to output pin (output is low) */
-				low_direction |= nSRSTnOE;
-		} else if (srst == 0) {
-			if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-				/* switch output high */
-				low_output |= nSRST;
-			else
-				/* switch to input pin (high-Z) */
-				low_direction &= ~nSRSTnOE;
-		}
-
-		/* 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 signalyzer_h_blink(void)
-{
-	signalyzer_h_led_set(signalyzer_h_side, SIGNALYZER_LED_RED, 100, 0, 1);
-}
-
-/********************************************************************
- * Support for KT-LINK
- * JTAG adapter from KRISTECH
- * http://www.kristech.eu
- *******************************************************************/
-static int ktlink_init(void)
-{
-	uint8_t swd_en = 0x20;	/* 0x20 SWD disable, 0x00 SWD enable (ADBUS5) */
-
-	low_output    = 0x08 | swd_en;	/* value; TMS=1,TCK=0,TDI=0,SWD=swd_en */
-	low_direction = 0x3B;		/* out=1; TCK/TDI/TMS=out,TDO=in,SWD=out,RTCK=in,SRSTIN=in */
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'ktlink' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	nTRST    = 0x01;
-	nSRST    = 0x02;
-	nTRSTnOE = 0x04;
-	nSRSTnOE = 0x08;
-
-	high_output    = 0x80;	/* turn LED on */
-	high_direction = 0xFF;	/* all outputs */
-
-	enum reset_types jtag_reset_config = jtag_get_reset_config();
-
-	if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) {
-		high_output |= nTRSTnOE;
-		high_output &= ~nTRST;
-	} else {
-		high_output &= ~nTRSTnOE;
-		high_output |= nTRST;
-	}
-
-	if (jtag_reset_config & RESET_SRST_PUSH_PULL) {
-		high_output &= ~nSRSTnOE;
-		high_output |= nSRST;
-	} else {
-		high_output |= nSRSTnOE;
-		high_output &= ~nSRST;
-	}
-
-	/* initialize high byte for jtag */
-	if (ft2232_set_data_bits_high_byte(high_output, high_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'ktlink' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-
-	return ERROR_OK;
-}
-
-static void ktlink_reset(int trst, int srst)
-{
-	enum reset_types jtag_reset_config = jtag_get_reset_config();
-
-	if (trst == 1) {
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-			high_output &= ~nTRSTnOE;
-		else
-			high_output &= ~nTRST;
-	} else if (trst == 0) {
-		if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
-			high_output |= nTRSTnOE;
-		else
-			high_output |= nTRST;
-	}
-
-	if (srst == 1) {
-		if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-			high_output &= ~nSRST;
-		else
-			high_output &= ~nSRSTnOE;
-	} else if (srst == 0) {
-		if (jtag_reset_config & RESET_SRST_PUSH_PULL)
-			high_output |= nSRST;
-		else
-			high_output |= nSRSTnOE;
-	}
-
-	buffer_write(0x82);	/* command "set data bits high byte" */
-	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 ktlink_blink(void)
-{
-	/* LED connected to ACBUS7 */
-	high_output ^= 0x80;
-
-	buffer_write(0x82);	/* command "set data bits high byte" */
-	buffer_write(high_output);
-	buffer_write(high_direction);
-}
-
-/********************************************************************
- * Support for Digilent HS-1
- * JTAG adapter from Digilent
- * http://www.digilent.com
- * Author: Stephane Bonnet bonnetst@hds.utc.fr
- *******************************************************************/
-
-static int digilent_hs1_init(void)
-{
-	/* the adapter only supports the base JTAG signals, no nTRST
-	   nor nSRST */
-	low_output	= 0x88;
-	low_direction	= 0x8b;
-
-	/* initialize low byte for jtag */
-	if (ft2232_set_data_bits_low_byte(low_output, low_direction) != ERROR_OK) {
-		LOG_ERROR("couldn't initialize FT2232 with 'digilent_hs1' layout");
-		return ERROR_JTAG_INIT_FAILED;
-	}
-	return ERROR_OK;
-}
-
-static void digilent_hs1_reset(int trst, int srst)
-{
-	/* Dummy function, no reset signals supported. */
-}
-
-static const struct command_registration ft2232_command_handlers[] = {
-	{
-		.name = "ft2232_device_desc",
-		.handler = &ft2232_handle_device_desc_command,
-		.mode = COMMAND_CONFIG,
-		.help = "set the USB device description of the FTDI FT2232 device",
-		.usage = "description_string",
-	},
-	{
-		.name = "ft2232_serial",
-		.handler = &ft2232_handle_serial_command,
-		.mode = COMMAND_CONFIG,
-		.help = "set the serial number of the FTDI FT2232 device",
-		.usage = "serial_string",
-	},
-	{
-		.name = "ft2232_layout",
-		.handler = &ft2232_handle_layout_command,
-		.mode = COMMAND_CONFIG,
-		.help = "set the layout of the FT2232 GPIO signals used "
-			"to control output-enables and reset signals",
-		.usage = "layout_name",
-	},
-	{
-		.name = "ft2232_vid_pid",
-		.handler = &ft2232_handle_vid_pid_command,
-		.mode = COMMAND_CONFIG,
-		.help = "the vendor ID and product ID of the FTDI FT2232 device",
-		.usage = "(vid pid)* ",
-	},
-	{
-		.name = "ft2232_latency",
-		.handler = &ft2232_handle_latency_command,
-		.mode = COMMAND_CONFIG,
-		.help = "set the FT2232 latency timer to a new value",
-		.usage = "value",
-	},
-	{
-		.name = "ft2232_channel",
-		.handler = &ft2232_handle_channel_command,
-		.mode = COMMAND_CONFIG,
-		.help = "set the FT2232 channel to a new value",
-		.usage = "value",
-	},
-	COMMAND_REGISTRATION_DONE
-};
-
-struct jtag_interface ft2232_interface = {
-	.name = "ft2232",
-	.supported = DEBUG_CAP_TMS_SEQ,
-	.commands = ft2232_command_handlers,
-	.transports = jtag_only,
-
-	.init = ft2232_init,
-	.quit = ft2232_quit,
-	.speed = ft2232_speed,
-	.speed_div = ft2232_speed_div,
-	.khz = ft2232_khz,
-	.execute_queue = ft2232_execute_queue,
-};
diff --git a/src/jtag/drivers/ftd2xx_common.h b/src/jtag/drivers/ftd2xx_common.h
index 14b84558..eaf14aed 100644
--- a/src/jtag/drivers/ftd2xx_common.h
+++ b/src/jtag/drivers/ftd2xx_common.h
@@ -20,7 +20,7 @@
 #ifndef OPENOCD_JTAG_DRIVERS_FTD2XX_COMMON_H
 #define OPENOCD_JTAG_DRIVERS_FTD2XX_COMMON_H
 
-#if ((BUILD_FT2232_FTD2XX == 1) || (BUILD_PRESTO_FTD2XX == 1) || (BUILD_USB_BLASTER_FTD2XX == 1))
+#if ((BUILD_PRESTO_FTD2XX == 1) || (BUILD_USB_BLASTER_FTD2XX == 1))
 #include <ftd2xx.h>
 
 static const char *ftd2xx_status_string(FT_STATUS status)
diff --git a/src/jtag/interfaces.c b/src/jtag/interfaces.c
index 64fdd71d..1ee29d2d 100644
--- a/src/jtag/interfaces.c
+++ b/src/jtag/interfaces.c
@@ -51,12 +51,6 @@ extern struct jtag_interface parport_interface;
 #if BUILD_DUMMY == 1
 extern struct jtag_interface dummy_interface;
 #endif
-#if BUILD_FT2232_FTD2XX == 1
-extern struct jtag_interface ft2232_interface;
-#endif
-#if BUILD_FT2232_LIBFTDI == 1
-extern struct jtag_interface ft2232_interface;
-#endif
 #if BUILD_FTDI == 1
 extern struct jtag_interface ftdi_interface;
 #endif
@@ -150,12 +144,6 @@ struct jtag_interface *jtag_interfaces[] = {
 #if BUILD_DUMMY == 1
 		&dummy_interface,
 #endif
-#if BUILD_FT2232_FTD2XX == 1
-		&ft2232_interface,
-#endif
-#if BUILD_FT2232_LIBFTDI == 1
-		&ft2232_interface,
-#endif
 #if BUILD_FTDI == 1
 		&ftdi_interface,
 #endif