/***************************************************************************
- * 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, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
+* Copyright (C) 2004, 2006 by Dominic Rath *
+* Dominic.Rath@gmx.de *
+* *
+* Copyright (C) 2008 by Spencer Oliver *
+* spen@spen-soft.co.uk *
+* *
+* Copyright (C) 2009 by SoftPLC Corporation. http://softplc.com *
+* Dick Hollenbeck <dick@softplc.com> *
+* *
+* This program is free software; you can redistribute it and/or modify *
+* it under the terms of the GNU General Public License as published by *
+* the Free Software Foundation; either version 2 of the License, or *
+* (at your option) any later version. *
+* *
+* This program is distributed in the hope that it will be useful, *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+* GNU General Public License for more details. *
+* *
+* You should have received a copy of the GNU General Public License *
+* along with this program; if not, write to the *
+* Free Software Foundation, Inc., *
+* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+***************************************************************************/
+
+/* This code uses information contained in the MPSSE specification which was
+ * found here:
+ * http://www.ftdichip.com/Documents/AppNotes/AN2232C-01_MPSSE_Cmnd.pdf
+ * Hereafter this is called the "MPSSE Spec".
+ *
+ * The datasheet for the ftdichip.com's FT2232D part is here:
+ * http://www.ftdichip.com/Documents/DataSheets/DS_FT2232D.pdf
+ */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+/* project specific includes */
+#include "interface.h"
+#include "commands.h"
+#include "time_support.h"
+
#if IS_CYGWIN == 1
-#include "windows.h"
+#include <windows.h>
#endif
-#include "replacements.h"
-
-/* project specific includes */
-#include "log.h"
-#include "types.h"
-#include "jtag.h"
-#include "configuration.h"
-#include "time_support.h"
+#include <assert.h>
-/* system includes */
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.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 <ftdi.h>
#endif
-/* enable this to debug io latency
- */
-#if 0
-#define _DEBUG_USB_IO_
-#endif
-
-/* enable this to debug communication
+/* max TCK for the high speed devices 30000 kHz */
+#define FTDI_2232H_4232H_MAX_TCK 30000
+/* 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
+
+static int ft2232_execute_queue(void);
+
+static int ft2232_speed(int speed);
+static int ft2232_speed_div(int speed, int* khz);
+static int ft2232_khz(int khz, int* jtag_speed);
+static int ft2232_register_commands(struct command_context_s* cmd_ctx);
+static int ft2232_init(void);
+static int ft2232_quit(void);
+
+static int ft2232_handle_device_desc_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
+static int ft2232_handle_serial_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
+static int ft2232_handle_layout_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
+static int ft2232_handle_vid_pid_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
+static int ft2232_handle_latency_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
+
+/**
+ * Send out \a num_cycles on the TCK line while the TAP(s) are in a
+ * stable state. Calling code must ensure that current state is stable,
+ * that verification is not done in here.
+ *
+ * @param num_cycles The number of clocks cycles to send.
+ * @param cmd The command to send.
+ *
+ * @returns ERROR_OK on success, or ERROR_JTAG_QUEUE_FAILED on failure.
*/
-#if 0
-#define _DEBUG_USB_COMMS_
-#endif
-
-int ft2232_execute_queue(void);
+static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd);
-int ft2232_speed(int speed);
-int ft2232_speed_div(int speed, int *khz);
-int ft2232_khz(int khz, int *jtag_speed);
-int ft2232_register_commands(struct command_context_s *cmd_ctx);
-int ft2232_init(void);
-int ft2232_quit(void);
+static char * ft2232_device_desc_A = NULL;
+static char* ft2232_device_desc = NULL;
+static char* ft2232_serial = NULL;
+static char* ft2232_layout = NULL;
+static uint8_t ft2232_latency = 2;
+static unsigned ft2232_max_tck = FTDI_2232C_MAX_TCK;
-int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int ft2232_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int ft2232_handle_latency_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-char *ft2232_device_desc = NULL;
-char *ft2232_serial = NULL;
-char *ft2232_layout = NULL;
-unsigned char ft2232_latency = 2;
-
-#define MAX_USB_IDS 8
+#define MAX_USB_IDS 8
/* vid = pid = 0 marks the end of the list */
-static u16 ft2232_vid[MAX_USB_IDS+1] = { 0x0403, 0 };
-static u16 ft2232_pid[MAX_USB_IDS+1] = { 0x6010, 0 };
+static uint16_t ft2232_vid[MAX_USB_IDS + 1] = { 0x0403, 0 };
+static uint16_t ft2232_pid[MAX_USB_IDS + 1] = { 0x6010, 0 };
typedef struct ft2232_layout_s
{
char* name;
- int(*init)(void);
- void(*reset)(int trst, int srst);
- void(*blink)(void);
+ int (*init)(void);
+ void (*reset)(int trst, int srst);
+ void (*blink)(void);
} ft2232_layout_t;
/* init procedures for supported layouts */
-int usbjtag_init(void);
-int jtagkey_init(void);
-int olimex_jtag_init(void);
-int flyswatter_init(void);
-int turtle_init(void);
-int comstick_init(void);
-int stm32stick_init(void);
-int axm0432_jtag_init(void);
+static int usbjtag_init(void);
+static int jtagkey_init(void);
+static int olimex_jtag_init(void);
+static int flyswatter_init(void);
+static int turtle_init(void);
+static int comstick_init(void);
+static int stm32stick_init(void);
+static int axm0432_jtag_init(void);
+static int sheevaplug_init(void);
+static int icebear_jtag_init(void);
+static int cortino_jtag_init(void);
/* reset procedures for supported layouts */
-void usbjtag_reset(int trst, int srst);
-void jtagkey_reset(int trst, int srst);
-void olimex_jtag_reset(int trst, int srst);
-void flyswatter_reset(int trst, int srst);
-void turtle_reset(int trst, int srst);
-void comstick_reset(int trst, int srst);
-void stm32stick_reset(int trst, int srst);
-void axm0432_jtag_reset(int trst, int srst);
+static void usbjtag_reset(int trst, int srst);
+static void jtagkey_reset(int trst, int srst);
+static void olimex_jtag_reset(int trst, int srst);
+static void flyswatter_reset(int trst, int srst);
+static void turtle_reset(int trst, int srst);
+static void comstick_reset(int trst, int srst);
+static void stm32stick_reset(int trst, int srst);
+static void axm0432_jtag_reset(int trst, int srst);
+static void sheevaplug_reset(int trst, int srst);
+static void icebear_jtag_reset(int trst, int srst);
/* blink procedures for layouts that support a blinking led */
-void olimex_jtag_blink(void);
-void turtle_jtag_blink(void);
-
-ft2232_layout_t ft2232_layouts[] =
-{
- {"usbjtag", usbjtag_init, usbjtag_reset, NULL},
- {"jtagkey", jtagkey_init, jtagkey_reset, NULL},
- {"jtagkey_prototype_v1", jtagkey_init, jtagkey_reset, NULL},
- {"oocdlink", jtagkey_init, jtagkey_reset, NULL},
- {"signalyzer", usbjtag_init, usbjtag_reset, NULL},
- {"evb_lm3s811", usbjtag_init, usbjtag_reset, NULL},
- {"olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink},
- {"flyswatter", flyswatter_init, flyswatter_reset, NULL},
- {"turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink},
- {"comstick", comstick_init, comstick_reset, NULL},
- {"stm32stick", stm32stick_init, stm32stick_reset, NULL},
- {"axm0432_jtag", axm0432_jtag_init, axm0432_jtag_reset, NULL},
- {NULL, NULL, NULL},
+static void olimex_jtag_blink(void);
+static void flyswatter_jtag_blink(void);
+static void turtle_jtag_blink(void);
+
+static const ft2232_layout_t ft2232_layouts[] =
+{
+ { "usbjtag", usbjtag_init, usbjtag_reset, NULL },
+ { "jtagkey", jtagkey_init, jtagkey_reset, NULL },
+ { "jtagkey_prototype_v1", jtagkey_init, jtagkey_reset, NULL },
+ { "oocdlink", jtagkey_init, jtagkey_reset, NULL },
+ { "signalyzer", usbjtag_init, usbjtag_reset, NULL },
+ { "evb_lm3s811", usbjtag_init, usbjtag_reset, NULL },
+ { "luminary_icdi", usbjtag_init, usbjtag_reset, NULL },
+ { "olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink },
+ { "flyswatter", flyswatter_init, flyswatter_reset, flyswatter_jtag_blink },
+ { "turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink },
+ { "comstick", comstick_init, comstick_reset, NULL },
+ { "stm32stick", stm32stick_init, stm32stick_reset, NULL },
+ { "axm0432_jtag", axm0432_jtag_init, axm0432_jtag_reset, NULL },
+ { "sheevaplug", sheevaplug_init, sheevaplug_reset, NULL },
+ { "icebear", icebear_jtag_init, icebear_jtag_reset, NULL },
+ { "cortino", cortino_jtag_init, comstick_reset, NULL },
+ { NULL, NULL, NULL, NULL },
};
-static u8 nTRST, nTRSTnOE, nSRST, nSRSTnOE;
+static uint8_t nTRST, nTRSTnOE, nSRST, nSRSTnOE;
-static ft2232_layout_t *layout;
-static u8 low_output = 0x0;
-static u8 low_direction = 0x0;
-static u8 high_output = 0x0;
-static u8 high_direction = 0x0;
+static const ft2232_layout_t *layout;
+static uint8_t low_output = 0x0;
+static uint8_t low_direction = 0x0;
+static uint8_t high_output = 0x0;
+static uint8_t high_direction = 0x0;
#if BUILD_FT2232_FTD2XX == 1
-static FT_HANDLE ftdih = NULL;
+static FT_HANDLE ftdih = NULL;
+static FT_DEVICE ftdi_device = 0;
#elif BUILD_FT2232_LIBFTDI == 1
static struct ftdi_context ftdic;
+static enum ftdi_chip_type ftdi_device;
+#endif
+
+static jtag_command_t* first_unsent; /* next command that has to be sent */
+static int require_send;
+
+/* http://urjtag.wiki.sourceforge.net/Cable + FT2232 says:
+
+ "There is a significant difference between libftdi and libftd2xx. The latter
+ one allows to schedule up to 64*64 bytes of result data while libftdi fails
+ with more than 4*64. As a consequence, the FT2232 driver is forced to
+ perform around 16x more USB transactions for long command streams with TDO
+ capture when running with libftdi."
+
+ No idea how we get
+ #define FT2232_BUFFER_SIZE 131072
+ a comment would have been nice.
+*/
+
+#define FT2232_BUFFER_SIZE 131072
+
+static uint8_t* ft2232_buffer = NULL;
+static int ft2232_buffer_size = 0;
+static int ft2232_read_pointer = 0;
+static int ft2232_expect_read = 0;
+
+/**
+ * Function buffer_write
+ * writes a byte into the byte buffer, "ft2232_buffer", which must be sent later.
+ * @param val is the byte to send.
+ */
+static inline void buffer_write(uint8_t val)
+{
+ assert(ft2232_buffer);
+ assert((unsigned) ft2232_buffer_size < (unsigned) FT2232_BUFFER_SIZE);
+ ft2232_buffer[ft2232_buffer_size++] = val;
+}
+
+/**
+ * Function buffer_read
+ * returns a byte from the byte buffer.
+ */
+static inline uint8_t buffer_read(void)
+{
+ assert(ft2232_buffer);
+ assert(ft2232_read_pointer < ft2232_buffer_size);
+ return ft2232_buffer[ft2232_read_pointer++];
+}
+
+/**
+ * Clocks out \a bit_count bits on the TMS line, starting with the least
+ * significant bit of tms_bits and progressing to more significant bits.
+ * Rigorous state transition logging is done here via tap_set_state().
+ *
+ * @param mpsse_cmd One of the MPSSE TMS oriented commands such as
+ * 0x4b or 0x6b. See the MPSSE spec referenced above for their
+ * functionality. The MPSSE command "Clock Data to TMS/CS Pin (no Read)"
+ * is often used for this, 0x4b.
+ *
+ * @param tms_bits Holds the sequence of bits to send.
+ * @param tms_count Tells how many bits in the sequence.
+ * @param tdi_bit A single bit to pass on to TDI before the first TCK
+ * cycle and held static for the duration of TMS clocking.
+ *
+ * See the MPSSE spec referenced above.
+ */
+static void clock_tms(uint8_t mpsse_cmd, int tms_bits, int tms_count, bool tdi_bit)
+{
+ uint8_t tms_byte;
+ int i;
+ int tms_ndx; /* bit index into tms_byte */
+
+ assert(tms_count > 0);
+
+#if 0
+ LOG_DEBUG("mpsse cmd=%02x, tms_bits = 0x%08x, bit_count=%d", mpsse_cmd, tms_bits, tms_count);
#endif
-static u8 *ft2232_buffer = NULL;
-static int ft2232_buffer_size = 0;
-static int ft2232_read_pointer = 0;
-static int ft2232_expect_read = 0;
-#define FT2232_BUFFER_SIZE 131072
-#define BUFFER_ADD ft2232_buffer[ft2232_buffer_size++]
-#define BUFFER_READ ft2232_buffer[ft2232_read_pointer++]
+ for (tms_byte = tms_ndx = i = 0; i < tms_count; ++i, tms_bits>>=1)
+ {
+ bool bit = tms_bits & 1;
+
+ if (bit)
+ tms_byte |= (1 << tms_ndx);
+
+ /* always do state transitions in public view */
+ tap_set_state(tap_state_transition(tap_get_state(), bit));
+
+ /* we wrote a bit to tms_byte just above, increment bit index. if bit was zero
+ also increment.
+ */
+ ++tms_ndx;
+
+ if (tms_ndx == 7 || i == tms_count-1)
+ {
+ buffer_write(mpsse_cmd);
+ buffer_write(tms_ndx - 1);
+
+ /* Bit 7 of the byte is passed on to TDI/DO before the first TCK/SK of
+ TMS/CS and is held static for the duration of TMS/CS clocking.
+ */
+ buffer_write(tms_byte | (tdi_bit << 7));
+ }
+ }
+}
+
+/**
+ * Function get_tms_buffer_requirements
+ * returns what clock_tms() will consume if called with
+ * same \a bit_count.
+ */
+static inline int get_tms_buffer_requirements(int bit_count)
+{
+ return ((bit_count + 6)/7) * 3;
+}
+
+/**
+ * Function move_to_state
+ * moves the TAP controller from the current state to a
+ * \a goal_state through a path given by tap_get_tms_path(). State transition
+ * logging is performed by delegation to clock_tms().
+ *
+ * @param goal_state is the destination state for the move.
+ */
+static void move_to_state(tap_state_t goal_state)
+{
+ tap_state_t start_state = tap_get_state();
+
+ /* goal_state is 1/2 of a tuple/pair of states which allow convenient
+ lookup of the required TMS pattern to move to this state from the
+ start state.
+ */
+
+ /* do the 2 lookups */
+ int tms_bits = tap_get_tms_path(start_state, goal_state);
+ int tms_count = tap_get_tms_path_len(start_state, goal_state);
+
+ DEBUG_JTAG_IO("start=%s goal=%s", tap_state_name(start_state), tap_state_name(goal_state));
+
+ clock_tms(0x4b, tms_bits, tms_count, 0);
+}
jtag_interface_t ft2232_interface =
{
- .name = "ft2232",
- .execute_queue = ft2232_execute_queue,
- .speed = ft2232_speed,
- .speed_div = ft2232_speed_div,
- .khz = ft2232_khz,
- .register_commands = ft2232_register_commands,
- .init = ft2232_init,
- .quit = ft2232_quit,
+ .name = "ft2232",
+ .execute_queue = ft2232_execute_queue,
+ .speed = ft2232_speed,
+ .speed_div = ft2232_speed_div,
+ .khz = ft2232_khz,
+ .register_commands = ft2232_register_commands,
+ .init = ft2232_init,
+ .quit = ft2232_quit,
};
-int ft2232_write(u8 *buf, int size, u32* bytes_written)
+static int ft2232_write(uint8_t* buf, int size, uint32_t* bytes_written)
{
#if BUILD_FT2232_FTD2XX == 1
FT_STATUS status;
#endif
}
-int ft2232_read(u8* buf, int size, u32* bytes_read)
+static int ft2232_read(uint8_t* buf, uint32_t size, uint32_t* bytes_read)
{
#if BUILD_FT2232_FTD2XX == 1
DWORD dw_bytes_read;
while ((*bytes_read < size) && timeout--)
{
if ((status = FT_Read(ftdih, buf + *bytes_read, size -
- *bytes_read, &dw_bytes_read)) != FT_OK)
+ *bytes_read, &dw_bytes_read)) != FT_OK)
{
*bytes_read = 0;
LOG_ERROR("FT_Read returned: %lu", status);
}
*bytes_read += dw_bytes_read;
}
+
#elif BUILD_FT2232_LIBFTDI == 1
int retval;
int timeout = 100;
}
*bytes_read += retval;
}
+
#endif
if (*bytes_read < size)
{
- LOG_ERROR("couldn't read the requested number of bytes from FT2232 device (%i < %i)", *bytes_read, size);
+ LOG_ERROR("couldn't read the requested number of bytes from FT2232 device (%i < %i)",
+ (unsigned int)(*bytes_read),
+ (unsigned int)size);
return ERROR_JTAG_DEVICE_ERROR;
}
return ERROR_OK;
}
-int ft2232_speed(int speed)
+static bool ft2232_device_is_highspeed(void)
+{
+#ifdef BUILD_FT2232_HIGHSPEED
+ #if BUILD_FT2232_FTD2XX == 1
+ return (ftdi_device == FT_DEVICE_2232H) || (ftdi_device == FT_DEVICE_4232H);
+ #elif BUILD_FT2232_LIBFTDI == 1
+ return (ftdi_device == TYPE_2232H || ftdi_device == TYPE_4232H);
+ #endif
+#else
+ return false;
+#endif
+}
+
+/*
+ * Commands that only apply to the FT2232H and FT4232H devices.
+ * 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 ft2232h_ft4232h_adaptive_clocking(bool enable)
+{
+ uint8_t buf = enable ? 0x96 : 0x97;
+ LOG_DEBUG("%2.2x", buf);
+
+ uint32_t bytes_written;
+ int retval = ft2232_write(&buf, 1, &bytes_written);
+ if ((ERROR_OK != retval) || (bytes_written != 1))
+ {
+ LOG_ERROR("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 ft2232h_ft4232h_clk_divide_by_5(bool enable)
+{
+ uint32_t bytes_written;
+ uint8_t buf = enable ? 0x8b : 0x8a;
+ int retval = ft2232_write(&buf, 1, &bytes_written);
+ if ((ERROR_OK != retval) || (bytes_written != 1))
+ {
+ 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_2232H_4232H_MAX_TCK;
+ LOG_INFO("max TCK change to: %u kHz", ft2232_max_tck);
+
+ return ERROR_OK;
+}
+
+static int ft2232_speed(int speed)
{
- u8 buf[3];
+ uint8_t buf[3];
int retval;
- u32 bytes_written;
+ uint32_t bytes_written;
+
+ retval = ERROR_OK;
+ bool enable_adaptive_clocking = (RTCK_SPEED == speed);
+ if (ft2232_device_is_highspeed())
+ retval = ft2232h_ft4232h_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 */
+ buf[0] = 0x86; /* command "set divisor" */
+ buf[1] = speed & 0xff; /* valueL (0 = 6MHz, 1 = 3MHz, 2 = 2.0MHz, ...*/
+ buf[2] = (speed >> 8) & 0xff; /* valueH */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((retval = ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
return ERROR_OK;
}
-int ft2232_speed_div(int speed, int *khz)
+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 = 6000 / (1+speed);
+ *khz = (RTCK_SPEED == speed) ? 0 : ft2232_max_tck / (1 + speed);
return ERROR_OK;
}
-int ft2232_khz(int khz, int *jtag_speed)
+static int ft2232_khz(int khz, int* jtag_speed)
{
- if (khz==0)
+ if (khz == 0)
{
- LOG_ERROR("RCLK not supported");
- return ERROR_FAIL;
+ if (ft2232_device_is_highspeed())
+ {
+ *jtag_speed = RTCK_SPEED;
+ return ERROR_OK;
+ }
+ else
+ {
+ LOG_DEBUG("RCLK not supported");
+#ifndef BUILD_FT2232_HIGHSPEED
+ LOG_DEBUG("If you have a high-speed FTDI device, then "
+ "OpenOCD may be built with --enable-ft2232-highspeed.");
+#endif
+ 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, (6000 / khz) - 1 */
+ /* Calc speed, (ft2232_max_tck / khz) - 1 */
/* Use 65000 for better rounding */
- *jtag_speed = (60000 / khz) - 10;
+ *jtag_speed = ((ft2232_max_tck*10) / khz) - 10;
/* Add 0.9 for rounding */
*jtag_speed += 9;
return ERROR_OK;
}
-int ft2232_register_commands(struct command_context_s *cmd_ctx)
+static int ft2232_register_commands(struct command_context_s* cmd_ctx)
{
register_command(cmd_ctx, NULL, "ft2232_device_desc", ft2232_handle_device_desc_command,
- COMMAND_CONFIG, "the USB device description of the FTDI FT2232 device");
+ COMMAND_CONFIG, "the USB device description of the FTDI FT2232 device");
register_command(cmd_ctx, NULL, "ft2232_serial", ft2232_handle_serial_command,
- COMMAND_CONFIG, "the serial number of the FTDI FT2232 device");
+ COMMAND_CONFIG, "the serial number of the FTDI FT2232 device");
register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command,
- COMMAND_CONFIG, "the layout of the FT2232 GPIO signals used to control output-enables and reset signals");
+ COMMAND_CONFIG, "the layout of the FT2232 GPIO signals used to control output-enables and reset signals");
register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command,
- COMMAND_CONFIG, "the vendor ID and product ID of the FTDI FT2232 device");
+ COMMAND_CONFIG, "the vendor ID and product ID of the FTDI FT2232 device");
register_command(cmd_ctx, NULL, "ft2232_latency", ft2232_handle_latency_command,
- COMMAND_CONFIG, "set the FT2232 latency timer to a new value");
+ COMMAND_CONFIG, "set the FT2232 latency timer to a new value");
return ERROR_OK;
}
-void ft2232_end_state(enum tap_state state)
+static void ft2232_end_state(tap_state_t state)
{
- if (tap_move_map[state] != -1)
- end_state = state;
+ if (tap_is_state_stable(state))
+ tap_set_end_state(state);
else
{
- LOG_ERROR("BUG: %i is not a valid end state", state);
+ LOG_ERROR("BUG: %s is not a stable end state", tap_state_name(state));
exit(-1);
}
}
-void ft2232_read_scan(enum scan_type type, u8* buffer, int scan_size)
+static void ft2232_read_scan(enum scan_type type, uint8_t* buffer, int scan_size)
{
- int num_bytes = ((scan_size + 7) / 8);
+ int num_bytes = (scan_size + 7) / 8;
int bits_left = scan_size;
- int cur_byte = 0;
+ int cur_byte = 0;
- while(num_bytes-- > 1)
+ while (num_bytes-- > 1)
{
- buffer[cur_byte] = BUFFER_READ;
- cur_byte++;
+ buffer[cur_byte++] = buffer_read();
bits_left -= 8;
}
buffer[cur_byte] = 0x0;
+ /* There is one more partial byte left from the clock data in/out instructions */
if (bits_left > 1)
{
- buffer[cur_byte] = BUFFER_READ >> 1;
+ buffer[cur_byte] = buffer_read() >> 1;
}
-
- buffer[cur_byte] = (buffer[cur_byte] | ((BUFFER_READ & 0x02) << 6)) >> (8 - bits_left);
-
+ /* This shift depends on the length of the clock data to tms instruction, insterted at end of the scan, now fixed to a two step transition in ft2232_add_scan */
+ buffer[cur_byte] = (buffer[cur_byte] | (((buffer_read()) << 1) & 0x80)) >> (8 - bits_left);
}
-void ft2232_debug_dump_buffer(void)
+static void ft2232_debug_dump_buffer(void)
{
int i;
char line[256];
- char *line_p = line;
+ char* line_p = line;
for (i = 0; i < ft2232_buffer_size; i++)
{
LOG_DEBUG("%s", line);
}
-int ft2232_send_and_recv(jtag_command_t *first, jtag_command_t *last)
+static int ft2232_send_and_recv(jtag_command_t* first, jtag_command_t* last)
{
- jtag_command_t *cmd;
- u8 *buffer;
+ jtag_command_t* cmd;
+ uint8_t* buffer;
int scan_size;
- enum scan_type type;
+ enum scan_type type;
int retval;
- u32 bytes_written;
- u32 bytes_read;
+ uint32_t bytes_written = 0;
+ uint32_t bytes_read = 0;
#ifdef _DEBUG_USB_IO_
- struct timeval start, inter, inter2, end;
- struct timeval d_inter, d_inter2, d_end;
+ struct timeval start, inter, inter2, end;
+ struct timeval d_inter, d_inter2, d_end;
#endif
#ifdef _DEBUG_USB_COMMS_
timeval_subtract(&d_inter2, &inter2, &start);
timeval_subtract(&d_end, &end, &start);
- LOG_INFO("inter: %i.%06i, inter2: %i.%06i end: %i.%06i", d_inter.tv_sec, d_inter.tv_usec, d_inter2.tv_sec, d_inter2.tv_usec, d_end.tv_sec, d_end.tv_usec);
+ LOG_INFO("inter: %u.%06u, inter2: %u.%06u end: %u.%06u",
+ (unsigned)d_inter.tv_sec, (unsigned)d_inter.tv_usec,
+ (unsigned)d_inter2.tv_sec, (unsigned)d_inter2.tv_usec,
+ (unsigned)d_end.tv_sec, (unsigned)d_end.tv_usec);
#endif
-
ft2232_buffer_size = bytes_read;
if (ft2232_expect_read != ft2232_buffer_size)
{
- LOG_ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read, ft2232_buffer_size, 100 - timeout);
+ LOG_ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read,
+ ft2232_buffer_size,
+ 100 - timeout);
ft2232_debug_dump_buffer();
exit(-1);
#endif
}
- ft2232_expect_read = 0;
+ ft2232_expect_read = 0;
ft2232_read_pointer = 0;
/* return ERROR_OK, unless a jtag_read_buffer returns a failed check
{
switch (cmd->type)
{
- case JTAG_SCAN:
- type = jtag_scan_type(cmd->cmd.scan);
- if (type != SCAN_OUT)
- {
- scan_size = jtag_scan_size(cmd->cmd.scan);
- buffer = calloc(CEIL(scan_size, 8), 1);
- ft2232_read_scan(type, buffer, scan_size);
- if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)
- retval = ERROR_JTAG_QUEUE_FAILED;
- free(buffer);
- }
- break;
- default:
- break;
+ case JTAG_SCAN:
+ type = jtag_scan_type(cmd->cmd.scan);
+ if (type != SCAN_OUT)
+ {
+ scan_size = jtag_scan_size(cmd->cmd.scan);
+ buffer = calloc(CEIL(scan_size, 8), 1);
+ ft2232_read_scan(type, buffer, scan_size);
+ if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ free(buffer);
+ }
+ break;
+
+ default:
+ break;
}
+
cmd = cmd->next;
}
return retval;
}
-void ft2232_add_pathmove(pathmove_command_t *cmd)
+/**
+ * Function ft2232_add_pathmove
+ * moves the TAP controller from the current state to a new state through the
+ * given path, where path is an array of tap_state_t's.
+ *
+ * @param path is an array of tap_stat_t which gives the states to traverse through
+ * ending with the last state at path[num_states-1]
+ * @param num_states is the count of state steps to move through
+ */
+static void ft2232_add_pathmove(tap_state_t* path, int num_states)
{
- int num_states = cmd->num_states;
- u8 tms_byte;
- int state_count;
-
- state_count = 0;
- while (num_states)
- {
- int bit_count = 0;
+ int tms_bits = 0;
+ int state_ndx;
+ tap_state_t walker = tap_get_state();
- int num_states_batch = num_states > 7 ? 7 : num_states;
+ assert((unsigned) num_states <= 32u); /* tms_bits only holds 32 bits */
- tms_byte = 0x0;
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* number of states remaining */
- BUFFER_ADD = num_states_batch - 1;
+ /* this loop verifies that the path is legal and logs each state in the path */
+ for (state_ndx = 0; state_ndx < num_states; ++state_ndx)
+ {
+ tap_state_t desired_next_state = path[state_ndx];
- while (num_states_batch--)
+ if (tap_state_transition(walker, false) == desired_next_state)
+ ; /* bit within tms_bits at index state_ndx is already zero */
+ else if (tap_state_transition(walker, true) == desired_next_state)
+ tms_bits |= (1 << state_ndx);
+ else
{
- if (tap_transitions[cur_state].low == cmd->path[state_count])
- buf_set_u32(&tms_byte, bit_count++, 1, 0x0);
- else if (tap_transitions[cur_state].high == cmd->path[state_count])
- buf_set_u32(&tms_byte, bit_count++, 1, 0x1);
- else
- {
- LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", jtag_state_name(cur_state), jtag_state_name(cmd->path[state_count]));
- exit(-1);
- }
-
- cur_state = cmd->path[state_count];
- state_count++;
- num_states--;
+ LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition",
+ tap_state_name(walker), tap_state_name(desired_next_state));
+ exit(-1);
}
- BUFFER_ADD = tms_byte;
+ walker = desired_next_state;
}
- end_state = cur_state;
+ clock_tms(0x4b, tms_bits, num_states, 0);
+
+ tap_set_end_state(tap_get_state());
}
-void ft2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
+static void ft2232_add_scan(bool ir_scan, enum scan_type type, uint8_t* buffer, int scan_size)
{
int num_bytes = (scan_size + 7) / 8;
int bits_left = scan_size;
- int cur_byte = 0;
+ int cur_byte = 0;
int last_bit;
- if (!((!ir_scan && (cur_state == TAP_DRSHIFT)) || (ir_scan && (cur_state == TAP_IRSHIFT))))
+ if (!ir_scan)
{
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
- /* TMS data bits */
- if (ir_scan)
+ if (tap_get_state() != TAP_DRSHIFT)
{
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_IRSHIFT);
- cur_state = TAP_IRSHIFT;
+ move_to_state(TAP_DRSHIFT);
}
- else
+ }
+ else
+ {
+ if (tap_get_state() != TAP_IRSHIFT)
{
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_DRSHIFT);
- cur_state = TAP_DRSHIFT;
+ move_to_state(TAP_IRSHIFT);
}
- /* LOG_DEBUG("added TMS scan (no read)"); */
}
/* add command for complete bytes */
if (type == SCAN_IO)
{
/* Clock Data Bytes In and Out LSB First */
- BUFFER_ADD = 0x39;
+ buffer_write(0x39);
/* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
}
else if (type == SCAN_OUT)
{
/* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
- BUFFER_ADD = 0x19;
+ buffer_write(0x19);
/* LOG_DEBUG("added TDI bytes (o)"); */
}
else if (type == SCAN_IN)
{
/* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
- BUFFER_ADD = 0x28;
+ buffer_write(0x28);
/* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
}
+
thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
- num_bytes -= thisrun_bytes;
- BUFFER_ADD = (thisrun_bytes - 1) & 0xff;
- BUFFER_ADD = ((thisrun_bytes - 1) >> 8) & 0xff;
+ num_bytes -= thisrun_bytes;
+
+ buffer_write((uint8_t) (thisrun_bytes - 1));
+ buffer_write((uint8_t) ((thisrun_bytes - 1) >> 8));
+
if (type != SCAN_IN)
{
/* add complete bytes */
- while(thisrun_bytes-- > 0)
+ while (thisrun_bytes-- > 0)
{
- BUFFER_ADD = buffer[cur_byte];
- cur_byte++;
+ buffer_write(buffer[cur_byte++]);
bits_left -= 8;
}
}
if (type == SCAN_IO)
{
/* Clock Data Bits In and Out LSB First */
- BUFFER_ADD = 0x3b;
+ buffer_write(0x3b);
/* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
}
else if (type == SCAN_OUT)
{
/* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
- BUFFER_ADD = 0x1b;
+ buffer_write(0x1b);
/* LOG_DEBUG("added TDI bits (o)"); */
}
else if (type == SCAN_IN)
{
/* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
- BUFFER_ADD = 0x2a;
+ buffer_write(0x2a);
/* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
}
- BUFFER_ADD = bits_left - 2;
+
+ buffer_write(bits_left - 2);
if (type != SCAN_IN)
- BUFFER_ADD = buffer[cur_byte];
+ buffer_write(buffer[cur_byte]);
}
- if ((ir_scan && (end_state == TAP_IRSHIFT)) ||
- (!ir_scan && (end_state == TAP_DRSHIFT)))
+ if ((ir_scan && (tap_get_end_state() == TAP_IRSHIFT))
+ || (!ir_scan && (tap_get_end_state() == TAP_DRSHIFT)))
{
if (type == SCAN_IO)
{
/* Clock Data Bits In and Out LSB First */
- BUFFER_ADD = 0x3b;
+ buffer_write(0x3b);
/* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
}
else if (type == SCAN_OUT)
{
/* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
- BUFFER_ADD = 0x1b;
+ buffer_write(0x1b);
/* LOG_DEBUG("added TDI bits (o)"); */
}
else if (type == SCAN_IN)
{
/* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
- BUFFER_ADD = 0x2a;
+ buffer_write(0x2a);
/* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
}
- BUFFER_ADD = 0x0;
- BUFFER_ADD = last_bit;
+ buffer_write(0x0);
+ buffer_write(last_bit);
}
else
{
+ int tms_bits;
+ int tms_count;
+ uint8_t mpsse_cmd;
+
/* move from Shift-IR/DR to end state */
if (type != SCAN_OUT)
{
+ /* We always go to the PAUSE state in two step at the end of an IN or IO scan */
+ /* This must be coordinated with the bit shifts in ft2232_read_scan */
+ tms_bits = 0x01;
+ tms_count = 2;
/* Clock Data to TMS/CS Pin with Read */
- BUFFER_ADD = 0x6b;
+ mpsse_cmd = 0x6b;
/* LOG_DEBUG("added TMS scan (read)"); */
}
else
{
+ tms_bits = tap_get_tms_path(tap_get_state(), tap_get_end_state());
+ tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
/* Clock Data to TMS/CS Pin (no Read) */
- BUFFER_ADD = 0x4b;
+ mpsse_cmd = 0x4b;
/* LOG_DEBUG("added TMS scan (no read)"); */
}
- BUFFER_ADD = 0x6;
- BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7);
- cur_state = end_state;
+
+ clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit);
+ }
+
+ if (tap_get_state() != tap_get_end_state())
+ {
+ move_to_state(tap_get_end_state());
}
}
-int ft2232_large_scan(scan_command_t *cmd, enum scan_type type, u8 *buffer, int scan_size)
+static int ft2232_large_scan(scan_command_t* cmd, enum scan_type type, uint8_t* buffer, int scan_size)
{
int num_bytes = (scan_size + 7) / 8;
int bits_left = scan_size;
- int cur_byte = 0;
+ int cur_byte = 0;
int last_bit;
- u8 *receive_buffer = malloc(CEIL(scan_size, 8));
- u8 *receive_pointer = receive_buffer;
- u32 bytes_written;
- u32 bytes_read;
+ uint8_t* receive_buffer = malloc(CEIL(scan_size, 8));
+ uint8_t* receive_pointer = receive_buffer;
+ uint32_t bytes_written;
+ uint32_t bytes_read;
int retval;
int thisrun_read = 0;
exit(-1);
}
- if (cur_state != TAP_DRSHIFT)
+ if (tap_get_state() != TAP_DRSHIFT)
{
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
- /* TMS data bits */
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_DRSHIFT);
- cur_state = TAP_DRSHIFT;
+ move_to_state(TAP_DRSHIFT);
}
if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
LOG_ERROR("couldn't write MPSSE commands to FT2232");
exit(-1);
}
- LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
+ LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
+ ft2232_buffer_size, (int)bytes_written);
ft2232_buffer_size = 0;
/* add command for complete bytes */
if (type == SCAN_IO)
{
/* Clock Data Bytes In and Out LSB First */
- BUFFER_ADD = 0x39;
+ buffer_write(0x39);
/* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
}
else if (type == SCAN_OUT)
{
/* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
- BUFFER_ADD = 0x19;
+ buffer_write(0x19);
/* LOG_DEBUG("added TDI bytes (o)"); */
}
else if (type == SCAN_IN)
{
/* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
- BUFFER_ADD = 0x28;
+ buffer_write(0x28);
/* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
}
+
thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
- thisrun_read = thisrun_bytes;
- num_bytes -= thisrun_bytes;
- BUFFER_ADD = (thisrun_bytes - 1) & 0xff;
- BUFFER_ADD = ((thisrun_bytes - 1) >> 8) & 0xff;
+ thisrun_read = thisrun_bytes;
+ num_bytes -= thisrun_bytes;
+ buffer_write((uint8_t) (thisrun_bytes - 1));
+ buffer_write((uint8_t) ((thisrun_bytes - 1) >> 8));
+
if (type != SCAN_IN)
{
/* add complete bytes */
- while(thisrun_bytes-- > 0)
+ while (thisrun_bytes-- > 0)
{
- BUFFER_ADD = buffer[cur_byte];
+ buffer_write(buffer[cur_byte]);
cur_byte++;
bits_left -= 8;
}
LOG_ERROR("couldn't write MPSSE commands to FT2232");
exit(-1);
}
- LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
+ LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
+ ft2232_buffer_size,
+ (int)bytes_written);
ft2232_buffer_size = 0;
if (type != SCAN_OUT)
LOG_ERROR("couldn't read from FT2232");
exit(-1);
}
- LOG_DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read);
+ LOG_DEBUG("thisrun_read: %i, bytes_read: %i",
+ thisrun_read,
+ (int)bytes_read);
receive_pointer += bytes_read;
}
}
if (type == SCAN_IO)
{
/* Clock Data Bits In and Out LSB First */
- BUFFER_ADD = 0x3b;
+ buffer_write(0x3b);
/* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
}
else if (type == SCAN_OUT)
{
/* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
- BUFFER_ADD = 0x1b;
+ buffer_write(0x1b);
/* LOG_DEBUG("added TDI bits (o)"); */
}
else if (type == SCAN_IN)
{
/* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
- BUFFER_ADD = 0x2a;
+ buffer_write(0x2a);
/* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
}
- BUFFER_ADD = bits_left - 2;
+ buffer_write(bits_left - 2);
if (type != SCAN_IN)
- BUFFER_ADD = buffer[cur_byte];
+ buffer_write(buffer[cur_byte]);
if (type != SCAN_OUT)
thisrun_read += 2;
}
- if (end_state == TAP_DRSHIFT)
+ if (tap_get_end_state() == TAP_DRSHIFT)
{
if (type == SCAN_IO)
{
/* Clock Data Bits In and Out LSB First */
- BUFFER_ADD = 0x3b;
+ buffer_write(0x3b);
/* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
}
else if (type == SCAN_OUT)
{
/* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
- BUFFER_ADD = 0x1b;
+ buffer_write(0x1b);
/* LOG_DEBUG("added TDI bits (o)"); */
}
else if (type == SCAN_IN)
{
/* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
- BUFFER_ADD = 0x2a;
+ buffer_write(0x2a);
/* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
}
- BUFFER_ADD = 0x0;
- BUFFER_ADD = last_bit;
+ buffer_write(0x0);
+ buffer_write(last_bit);
}
else
{
+ int tms_bits = tap_get_tms_path(tap_get_state(), tap_get_end_state());
+ int tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
+ uint8_t mpsse_cmd;
+
/* move from Shift-IR/DR to end state */
if (type != SCAN_OUT)
{
/* Clock Data to TMS/CS Pin with Read */
- BUFFER_ADD = 0x6b;
+ mpsse_cmd = 0x6b;
/* LOG_DEBUG("added TMS scan (read)"); */
}
else
{
/* Clock Data to TMS/CS Pin (no Read) */
- BUFFER_ADD = 0x4b;
+ mpsse_cmd = 0x4b;
/* LOG_DEBUG("added TMS scan (no read)"); */
}
- BUFFER_ADD = 0x6;
- BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7);
- cur_state = end_state;
+
+ clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit);
}
if (type != SCAN_OUT)
LOG_ERROR("couldn't write MPSSE commands to FT2232");
exit(-1);
}
- LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
+ LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
+ ft2232_buffer_size,
+ (int)bytes_written);
ft2232_buffer_size = 0;
if (type != SCAN_OUT)
LOG_ERROR("couldn't read from FT2232");
exit(-1);
}
- LOG_DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read);
+ LOG_DEBUG("thisrun_read: %i, bytes_read: %i",
+ thisrun_read,
+ (int)bytes_read);
receive_pointer += bytes_read;
}
return ERROR_OK;
}
-int ft2232_predict_scan_out(int scan_size, enum scan_type type)
+static int ft2232_predict_scan_out(int scan_size, enum scan_type type)
{
int predicted_size = 3;
int num_bytes = (scan_size - 1) / 8;
- if (cur_state != TAP_DRSHIFT)
- predicted_size += 3;
+ if (tap_get_state() != TAP_DRSHIFT)
+ predicted_size += get_tms_buffer_requirements(tap_get_tms_path_len(tap_get_state(), TAP_DRSHIFT));
if (type == SCAN_IN) /* only from device to host */
{
/* complete bytes */
- predicted_size += (CEIL(num_bytes, 65536)) * 3;
+ predicted_size += CEIL(num_bytes, 65536) * 3;
+
/* remaining bits - 1 (up to 7) */
predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
}
- else /* host to device, or bidirectional */
+ else /* host to device, or bidirectional */
{
/* complete bytes */
- predicted_size += num_bytes + (CEIL(num_bytes, 65536)) * 3;
+ predicted_size += num_bytes + CEIL(num_bytes, 65536) * 3;
+
/* remaining bits -1 (up to 7) */
predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
}
return predicted_size;
}
-int ft2232_predict_scan_in(int scan_size, enum scan_type type)
+static int ft2232_predict_scan_in(int scan_size, enum scan_type type)
{
int predicted_size = 0;
{
/* complete bytes */
predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) - 1) : 0;
+
/* remaining bits - 1 */
predicted_size += ((scan_size - 1) % 8) ? 1 : 0;
+
/* last bit (from TMS scan) */
predicted_size += 1;
}
return predicted_size;
}
-void usbjtag_reset(int trst, int srst)
+static void usbjtag_reset(int trst, int srst)
{
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
if (trst == 1)
{
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 */
+ 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) */
+ low_direction &= ~nTRSTnOE; /* switch to input pin (high-Z + internal and external pullup) */
else
- low_output |= nTRST; /* switch output high */
+ low_output |= nTRST; /* switch output high */
}
if (srst == 1)
{
if (jtag_reset_config & RESET_SRST_PUSH_PULL)
- low_output &= ~nSRST; /* switch output low */
+ low_output &= ~nSRST; /* switch output low */
else
low_direction |= nSRSTnOE; /* switch to output pin (output is low) */
}
else if (srst == 0)
{
if (jtag_reset_config & RESET_SRST_PUSH_PULL)
- low_output |= nSRST; /* switch output high */
+ low_output |= nSRST; /* switch output high */
else
low_direction &= ~nSRSTnOE; /* switch to input pin (high-Z) */
}
/* command "set data bits low byte" */
- BUFFER_ADD = 0x80;
- BUFFER_ADD = low_output;
- BUFFER_ADD = low_direction;
-
+ buffer_write(0x80);
+ buffer_write(low_output);
+ buffer_write(low_direction);
}
-void jtagkey_reset(int trst, int srst)
+static void jtagkey_reset(int trst, int srst)
{
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
if (trst == 1)
{
if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
}
/* command "set data bits high byte" */
- BUFFER_ADD = 0x82;
- BUFFER_ADD = high_output;
- BUFFER_ADD = high_direction;
- LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
+ buffer_write(0x82);
+ buffer_write(high_output);
+ buffer_write(high_direction);
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
+ high_direction);
}
-void olimex_jtag_reset(int trst, int srst)
+static void olimex_jtag_reset(int trst, int srst)
{
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
if (trst == 1)
{
if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
}
/* command "set data bits high byte" */
- BUFFER_ADD = 0x82;
- BUFFER_ADD = high_output;
- BUFFER_ADD = high_direction;
- LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
+ buffer_write(0x82);
+ buffer_write(high_output);
+ buffer_write(high_direction);
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
+ high_direction);
}
-void axm0432_jtag_reset(int trst, int srst)
+static void axm0432_jtag_reset(int trst, int srst)
{
if (trst == 1)
{
- cur_state = TAP_RESET;
+ tap_set_state(TAP_RESET);
high_output &= ~nTRST;
}
else if (trst == 0)
}
/* command "set data bits low byte" */
- BUFFER_ADD = 0x82;
- BUFFER_ADD = high_output;
- BUFFER_ADD = high_direction;
- LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
+ buffer_write(0x82);
+ buffer_write(high_output);
+ buffer_write(high_direction);
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
+ high_direction);
}
-void flyswatter_reset(int trst, int srst)
+static void flyswatter_reset(int trst, int srst)
{
if (trst == 1)
{
}
/* command "set data bits low byte" */
- BUFFER_ADD = 0x80;
- BUFFER_ADD = low_output;
- BUFFER_ADD = low_direction;
+ 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);
}
-void turtle_reset(int trst, int srst)
+static void turtle_reset(int trst, int srst)
{
trst = trst;
}
/* command "set data bits low byte" */
- BUFFER_ADD = 0x80;
- BUFFER_ADD = low_output;
- BUFFER_ADD = low_direction;
+ 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);
}
-void comstick_reset(int trst, int srst)
+static void comstick_reset(int trst, int srst)
{
if (trst == 1)
{
}
/* command "set data bits high byte" */
- BUFFER_ADD = 0x82;
- BUFFER_ADD = high_output;
- BUFFER_ADD = high_direction;
- LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
+ buffer_write(0x82);
+ buffer_write(high_output);
+ buffer_write(high_direction);
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
+ high_direction);
}
-void stm32stick_reset(int trst, int srst)
+static void stm32stick_reset(int trst, int srst)
{
if (trst == 1)
{
}
/* command "set data bits low byte" */
- BUFFER_ADD = 0x80;
- BUFFER_ADD = low_output;
- BUFFER_ADD = low_direction;
+ 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_ADD = 0x82;
- BUFFER_ADD = high_output;
- BUFFER_ADD = high_direction;
+ buffer_write(0x82);
+ buffer_write(high_output);
+ buffer_write(high_direction);
LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
}
-int ft2232_execute_queue()
+static int ft2232_execute_runtest(jtag_command_t *cmd)
{
- jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
- jtag_command_t *first_unsent = cmd; /* next command that has to be sent */
- u8 *buffer;
- int scan_size; /* size of IR or DR scan */
- enum scan_type type;
+ int retval;
int i;
int predicted_size = 0;
- int require_send = 0;
- int retval;
-
- /* return ERROR_OK, unless ft2232_send_and_recv reports a failed check
- * that wasn't handled by a caller-provided error handler
- */
retval = ERROR_OK;
- ft2232_buffer_size = 0;
- ft2232_expect_read = 0;
+ DEBUG_JTAG_IO("runtest %i cycles, end in %s",
+ cmd->cmd.runtest->num_cycles,
+ tap_state_name(cmd->cmd.runtest->end_state));
- /* blink, if the current layout has that feature */
- if (layout->blink)
- layout->blink();
+ /* only send the maximum buffer size that FT2232C can handle */
+ predicted_size = 0;
+ if (tap_get_state() != TAP_IDLE)
+ predicted_size += 3;
+ predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7);
+ if (cmd->cmd.runtest->end_state != TAP_IDLE)
+ predicted_size += 3;
+ if (tap_get_end_state() != TAP_IDLE)
+ predicted_size += 3;
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
+ {
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ require_send = 0;
+ first_unsent = cmd;
+ }
+ if (tap_get_state() != TAP_IDLE)
+ {
+ move_to_state(TAP_IDLE);
+ require_send = 1;
+ }
+ i = cmd->cmd.runtest->num_cycles;
+ while (i > 0)
+ {
+ /* there are no state transitions in this code, so omit state tracking */
- while (cmd)
+ /* command "Clock Data to TMS/CS Pin (no Read)" */
+ buffer_write(0x4b);
+
+ /* scan 7 bits */
+ buffer_write((i > 7) ? 6 : (i - 1));
+
+ /* TMS data bits */
+ buffer_write(0x0);
+ tap_set_state(TAP_IDLE);
+
+ i -= (i > 7) ? 7 : i;
+ /* LOG_DEBUG("added TMS scan (no read)"); */
+ }
+
+ ft2232_end_state(cmd->cmd.runtest->end_state);
+
+ if (tap_get_state() != tap_get_end_state())
{
- switch(cmd->type)
- {
- case JTAG_END_STATE:
- if (cmd->cmd.end_state->end_state != -1)
- ft2232_end_state(cmd->cmd.end_state->end_state);
- break;
- case JTAG_RESET:
- /* only send the maximum buffer size that FT2232C can handle */
- predicted_size = 3;
- if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
- {
- if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
- retval = ERROR_JTAG_QUEUE_FAILED;
- require_send = 0;
- first_unsent = cmd;
- }
-
- if ((cmd->cmd.reset->trst == 1) || (cmd->cmd.reset->srst && (jtag_reset_config & RESET_SRST_PULLS_TRST)))
- {
- cur_state = TAP_RESET;
- }
- layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
- require_send = 1;
+ move_to_state(tap_get_end_state());
+ }
+ require_send = 1;
#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("trst: %i, srst: %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
-#endif
- break;
- case JTAG_RUNTEST:
- /* only send the maximum buffer size that FT2232C can handle */
- predicted_size = 0;
- if (cur_state != TAP_IDLE)
- predicted_size += 3;
- predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7);
- if ((cmd->cmd.runtest->end_state != -1) && (cmd->cmd.runtest->end_state != TAP_IDLE))
- predicted_size += 3;
- if ((cmd->cmd.runtest->end_state == -1) && (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 (cur_state != TAP_IDLE)
- {
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
- /* TMS data bits */
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_IDLE);
- cur_state = TAP_IDLE;
- require_send = 1;
- }
- i = cmd->cmd.runtest->num_cycles;
- while (i > 0)
- {
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = (i > 7) ? 6 : (i - 1);
- /* TMS data bits */
- BUFFER_ADD = 0x0;
- cur_state = TAP_IDLE;
- i -= (i > 7) ? 7 : i;
- /* LOG_DEBUG("added TMS scan (no read)"); */
- }
- if (cmd->cmd.runtest->end_state != -1)
- ft2232_end_state(cmd->cmd.runtest->end_state);
- if (cur_state != end_state)
- {
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
- /* TMS data bits */
- BUFFER_ADD = TAP_MOVE(cur_state, end_state);
- cur_state = end_state;
- /* LOG_DEBUG("added TMS scan (no read)"); */
- }
- require_send = 1;
-#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("runtest: %i, end in %i", cmd->cmd.runtest->num_cycles, end_state);
-#endif
- break;
- case JTAG_STATEMOVE:
- /* only send the maximum buffer size that FT2232C can handle */
- predicted_size = 3;
- if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
- {
- if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
- retval = ERROR_JTAG_QUEUE_FAILED;
- require_send = 0;
- first_unsent = cmd;
- }
- if (cmd->cmd.statemove->end_state != -1)
- ft2232_end_state(cmd->cmd.statemove->end_state);
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
- /* TMS data bits */
- BUFFER_ADD = TAP_MOVE(cur_state, end_state);
- /* LOG_DEBUG("added TMS scan (no read)"); */
- cur_state = end_state;
- require_send = 1;
-#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("statemove: %i", end_state);
-#endif
- break;
- case JTAG_PATHMOVE:
- /* only send the maximum buffer size that FT2232C can handle */
- predicted_size = 3 * CEIL(cmd->cmd.pathmove->num_states, 7);
- if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
- {
- if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
- retval = ERROR_JTAG_QUEUE_FAILED;
- require_send = 0;
- first_unsent = cmd;
- }
- ft2232_add_pathmove(cmd->cmd.pathmove);
- require_send = 1;
-#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
-#endif
- break;
- case JTAG_SCAN:
- scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
- type = jtag_scan_type(cmd->cmd.scan);
- predicted_size = ft2232_predict_scan_out(scan_size, type);
- if ((predicted_size + 1) > FT2232_BUFFER_SIZE)
- {
- LOG_DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)");
- /* unsent commands before this */
- if (first_unsent != cmd)
- if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
- retval = ERROR_JTAG_QUEUE_FAILED;
-
- /* current command */
- if (cmd->cmd.scan->end_state != -1)
- ft2232_end_state(cmd->cmd.scan->end_state);
- ft2232_large_scan(cmd->cmd.scan, type, buffer, scan_size);
- require_send = 0;
- first_unsent = cmd->next;
- if (buffer)
- free(buffer);
- break;
- }
- else if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
- {
- LOG_DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)", first_unsent, cmd);
- if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
- retval = ERROR_JTAG_QUEUE_FAILED;
- require_send = 0;
- first_unsent = cmd;
- }
- ft2232_expect_read += ft2232_predict_scan_in(scan_size, type);
- /* LOG_DEBUG("new read size: %i", ft2232_expect_read); */
- if (cmd->cmd.scan->end_state != -1)
- ft2232_end_state(cmd->cmd.scan->end_state);
- ft2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
- require_send = 1;
- if (buffer)
- free(buffer);
-#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("%s scan, %i bit, end in %i", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, end_state);
-#endif
- break;
- case JTAG_SLEEP:
- if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
- retval = ERROR_JTAG_QUEUE_FAILED;
- first_unsent = cmd->next;
- jtag_sleep(cmd->cmd.sleep->us);
-#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("sleep %i usec", cmd->cmd.sleep->us);
+ LOG_DEBUG("runtest: %i, end in %s", cmd->cmd.runtest->num_cycles, tap_state_name(tap_get_end_state()));
#endif
- break;
- default:
- LOG_ERROR("BUG: unknown JTAG command type encountered");
- exit(-1);
- }
- cmd = cmd->next;
- }
-
- if (require_send > 0)
- if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
- retval = ERROR_JTAG_QUEUE_FAILED;
return retval;
}
-#if BUILD_FT2232_FTD2XX == 1
-static int ft2232_init_ftd2xx(u16 vid, u16 pid, int more, int *try_more)
+static int ft2232_execute_statemove(jtag_command_t *cmd)
{
- FT_STATUS status;
- DWORD openex_flags = 0;
- char *openex_string = NULL;
- u8 latency_timer;
+ int predicted_size = 0;
+ int retval = ERROR_OK;
- LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)",ft2232_layout, vid, pid);
+ DEBUG_JTAG_IO("statemove end in %i", cmd->cmd.statemove->end_state);
-#if IS_WIN32 == 0
- /* Add non-standard Vid/Pid to the linux driver */
- if ((status = FT_SetVIDPID(vid, pid)) != FT_OK)
+ /* only send the maximum buffer size that FT2232C can handle */
+ predicted_size = 3;
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
- LOG_WARNING("couldn't add %4.4x:%4.4x", vid, pid);
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ require_send = 0;
+ first_unsent = cmd;
}
-#endif
+ ft2232_end_state(cmd->cmd.statemove->end_state);
- if (ft2232_device_desc && ft2232_serial)
+ /* move to end state */
+ if (tap_get_state() != tap_get_end_state())
{
- LOG_WARNING("can't open by device description and serial number, giving precedence to serial");
- ft2232_device_desc = NULL;
+ move_to_state(tap_get_end_state());
+ require_send = 1;
}
- if (ft2232_device_desc)
+ return retval;
+}
+
+static int ft2232_execute_pathmove(jtag_command_t *cmd)
+{
+ int predicted_size = 0;
+ int retval = ERROR_OK;
+
+ tap_state_t* path = cmd->cmd.pathmove->path;
+ int num_states = cmd->cmd.pathmove->num_states;
+
+ DEBUG_JTAG_IO("pathmove: %i states, current: %s end: %s", num_states,
+ tap_state_name(tap_get_state()),
+ tap_state_name(path[num_states-1]));
+
+ /* only send the maximum buffer size that FT2232C can handle */
+ predicted_size = 3 * CEIL(num_states, 7);
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
- openex_string = ft2232_device_desc;
- openex_flags = FT_OPEN_BY_DESCRIPTION;
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+
+ require_send = 0;
+ first_unsent = cmd;
}
- else if (ft2232_serial)
- {
+
+ ft2232_add_pathmove(path, num_states);
+ require_send = 1;
+
+ return retval;
+}
+
+static int ft2232_execute_scan(jtag_command_t *cmd)
+{
+ uint8_t* buffer;
+ int scan_size; /* size of IR or DR scan */
+ int predicted_size = 0;
+ int retval = ERROR_OK;
+
+ enum scan_type type = jtag_scan_type(cmd->cmd.scan);
+
+ DEBUG_JTAG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN", type);
+
+ scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
+
+ predicted_size = ft2232_predict_scan_out(scan_size, type);
+ if ((predicted_size + 1) > FT2232_BUFFER_SIZE)
+ {
+ LOG_DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)");
+ /* unsent commands before this */
+ if (first_unsent != cmd)
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+
+ /* current command */
+ ft2232_end_state(cmd->cmd.scan->end_state);
+ ft2232_large_scan(cmd->cmd.scan, type, buffer, scan_size);
+ require_send = 0;
+ first_unsent = cmd->next;
+ if (buffer)
+ free(buffer);
+ return retval;
+ }
+ else if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
+ {
+ LOG_DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)",
+ first_unsent,
+ cmd);
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ require_send = 0;
+ first_unsent = cmd;
+ }
+ ft2232_expect_read += ft2232_predict_scan_in(scan_size, type);
+ /* LOG_DEBUG("new read size: %i", ft2232_expect_read); */
+ ft2232_end_state(cmd->cmd.scan->end_state);
+ ft2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
+ require_send = 1;
+ if (buffer)
+ free(buffer);
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("%s scan, %i bits, end in %s", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size,
+ tap_state_name(tap_get_end_state()));
+#endif
+ return retval;
+
+}
+
+static int ft2232_execute_reset(jtag_command_t *cmd)
+{
+ int retval;
+ int predicted_size = 0;
+ retval = ERROR_OK;
+
+ DEBUG_JTAG_IO("reset trst: %i srst %i",
+ cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+
+ /* only send the maximum buffer size that FT2232C can handle */
+ predicted_size = 3;
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
+ {
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ require_send = 0;
+ first_unsent = cmd;
+ }
+
+ layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+ require_send = 1;
+
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("trst: %i, srst: %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+#endif
+ return retval;
+}
+
+static int ft2232_execute_sleep(jtag_command_t *cmd)
+{
+ int retval;
+ retval = ERROR_OK;
+
+ DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
+
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ first_unsent = cmd->next;
+ jtag_sleep(cmd->cmd.sleep->us);
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("sleep %i usec while in %s", cmd->cmd.sleep->us, tap_state_name(tap_get_state()));
+#endif
+
+ return retval;
+}
+
+static int ft2232_execute_stableclocks(jtag_command_t *cmd)
+{
+ int retval;
+ retval = ERROR_OK;
+
+ /* this is only allowed while in a stable state. A check for a stable
+ * state was done in jtag_add_clocks()
+ */
+ if (ft2232_stableclocks(cmd->cmd.stableclocks->num_cycles, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("clocks %i while in %s", cmd->cmd.stableclocks->num_cycles, tap_state_name(tap_get_state()));
+#endif
+
+ return retval;
+}
+
+static int ft2232_execute_command(jtag_command_t *cmd)
+{
+ int retval;
+ retval = ERROR_OK;
+
+ switch (cmd->type)
+ {
+ case JTAG_RESET: retval = ft2232_execute_reset(cmd); break;
+ case JTAG_RUNTEST: retval = ft2232_execute_runtest(cmd); break;
+ case JTAG_STATEMOVE: retval = ft2232_execute_statemove(cmd); break;
+ case JTAG_PATHMOVE: retval = ft2232_execute_pathmove(cmd); break;
+ case JTAG_SCAN: retval = ft2232_execute_scan(cmd); break;
+ case JTAG_SLEEP: retval = ft2232_execute_sleep(cmd); break;
+ case JTAG_STABLECLOCKS: retval = ft2232_execute_stableclocks(cmd); break;
+ default:
+ LOG_ERROR("BUG: unknown JTAG command type encountered");
+ exit(-1);
+ }
+ return retval;
+}
+
+static int ft2232_execute_queue()
+{
+ jtag_command_t* cmd = jtag_command_queue; /* currently processed command */
+ int retval;
+
+ first_unsent = cmd; /* next command that has to be sent */
+ require_send = 0;
+
+ /* return ERROR_OK, unless ft2232_send_and_recv reports a failed check
+ * that wasn't handled by a caller-provided error handler
+ */
+ retval = ERROR_OK;
+
+ ft2232_buffer_size = 0;
+ ft2232_expect_read = 0;
+
+ /* blink, if the current layout has that feature */
+ if (layout->blink)
+ layout->blink();
+
+ while (cmd)
+ {
+ if (ft2232_execute_command(cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ /* Start reading input before FT2232 TX buffer fills up */
+ cmd = cmd->next;
+ if (ft2232_expect_read > 256)
+ {
+ 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;
+
+ LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)", ft2232_layout, vid, pid);
+
+#if IS_WIN32 == 0
+ /* Add non-standard Vid/Pid to the linux driver */
+ if ((status = FT_SetVIDPID(vid, pid)) != FT_OK)
+ {
+ LOG_WARNING("couldn't add %4.4x:%4.4x", vid, pid);
+ }
+#endif
+
+ if (ft2232_device_desc && ft2232_serial)
+ {
+ LOG_WARNING("can't open by device description and serial number, giving precedence to serial");
+ ft2232_device_desc = NULL;
+ }
+
+ if (ft2232_device_desc)
+ {
+ openex_string = ft2232_device_desc;
+ openex_flags = FT_OPEN_BY_DESCRIPTION;
+ }
+ else if (ft2232_serial)
+ {
openex_string = ft2232_serial;
- openex_flags = FT_OPEN_BY_SERIAL_NUMBER;
+ openex_flags = FT_OPEN_BY_SERIAL_NUMBER;
}
else
{
return ERROR_JTAG_INIT_FAILED;
}
- if ((status = FT_OpenEx(openex_string, openex_flags, &ftdih)) != FT_OK)
+ status = FT_OpenEx(openex_string, openex_flags, &ftdih);
+ if (status != FT_OK) {
+ /* under Win32, the FTD2XX driver appends an "A" to the end
+ * of the description, if we tried by the desc, then
+ * try by the alternate "A" description. */
+ if (openex_string == ft2232_device_desc) {
+ /* Try the alternate method. */
+ openex_string = ft2232_device_desc_A;
+ status = FT_OpenEx(openex_string, openex_flags, &ftdih);
+ if (status == FT_OK) {
+ /* yea, the "alternate" method worked! */
+ } else {
+ /* drat, give the user a meaningfull message.
+ * telling the use we tried *BOTH* methods. */
+ LOG_WARNING("Unable to open FTDI Device tried: '%s' and '%s'\n",
+ ft2232_device_desc,
+ ft2232_device_desc_A);
+ }
+ }
+ }
+
+ if (status != FT_OK)
{
DWORD num_devices;
- if (more) {
+ if (more)
+ {
LOG_WARNING("unable to open ftdi device (trying more): %lu", status);
*try_more = 1;
return ERROR_JTAG_INIT_FAILED;
status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
if (status == FT_OK)
{
- char **desc_array = malloc(sizeof(char*) * (num_devices + 1));
- int i;
+ char** desc_array = malloc(sizeof(char*) * (num_devices + 1));
+ uint32_t i;
for (i = 0; i < num_devices; i++)
desc_array[i] = malloc(64);
+
desc_array[num_devices] = NULL;
status = FT_ListDevices(desc_array, &num_devices, FT_LIST_ALL | openex_flags);
{
LOG_ERROR("ListDevices: %lu\n", num_devices);
for (i = 0; i < num_devices; i++)
- LOG_ERROR("%i: \"%s\"", i, desc_array[i]);
+ LOG_ERROR("%" PRIu32 ": \"%s\"", i, desc_array[i]);
}
for (i = 0; i < num_devices; i++)
free(desc_array[i]);
+
free(desc_array);
}
else
return ERROR_JTAG_INIT_FAILED;
}
+ if ((status = FT_GetDeviceInfo(ftdih, &ftdi_device, &deviceID, SerialNumber, Description, NULL)) != FT_OK)
+ {
+ LOG_ERROR("unable to get FT_GetDeviceInfo: %lu", status);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+ else
+ {
+ static const char* type_str[] =
+ {"BM", "AM", "100AX", "UNKNOWN", "2232C", "232R", "2232H", "4232H"};
+ unsigned no_of_known_types = sizeof(type_str) / sizeof(type_str[0]) - 1;
+ unsigned type_index = ((unsigned)ftdi_device < no_of_known_types)
+ ? ftdi_device : 3;
+ LOG_INFO("device: %lu \"%s\"", ftdi_device, type_str[type_index]);
+ LOG_INFO("deviceID: %lu", deviceID);
+ LOG_INFO("SerialNumber: %s", SerialNumber);
+ LOG_INFO("Description: %s", Description);
+ }
+
return ERROR_OK;
}
return ERROR_OK;
}
+
#endif /* BUILD_FT2232_FTD2XX == 1 */
#if BUILD_FT2232_LIBFTDI == 1
-static int ft2232_init_libftdi(u16 vid, u16 pid, int more, int *try_more)
+static int ft2232_init_libftdi(uint16_t vid, uint16_t pid, int more, int* try_more)
{
- u8 latency_timer;
+ uint8_t latency_timer;
LOG_DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)",
- ft2232_layout, vid, pid);
+ ft2232_layout, vid, pid);
if (ftdi_init(&ftdic) < 0)
return ERROR_JTAG_INIT_FAILED;
+ if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0)
+ {
+ LOG_ERROR("unable to select FT2232 channel A: %s", ftdic.error_str);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
/* context, vendor id, product id */
if (ftdi_usb_open_desc(&ftdic, vid, pid, ft2232_device_desc,
- ft2232_serial) < 0) {
+ ft2232_serial) < 0)
+ {
if (more)
LOG_WARNING("unable to open ftdi device (trying more): %s",
- ftdic.error_str);
+ ftdic.error_str);
else
LOG_ERROR("unable to open ftdi device: %s", ftdic.error_str);
*try_more = 1;
return ERROR_JTAG_INIT_FAILED;
}
- if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0)
- {
- LOG_ERROR("unable to select FT2232 channel A: %s", ftdic.error_str);
- return ERROR_JTAG_INIT_FAILED;
- }
-
+ /* 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");
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", "Unknown"};
+ unsigned no_of_known_types = sizeof(type_str) / sizeof(type_str[0]) - 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;
}
return ERROR_OK;
}
+
#endif /* BUILD_FT2232_LIBFTDI == 1 */
-int ft2232_init(void)
+static int ft2232_init(void)
{
- u8 buf[1];
+ uint8_t buf[1];
int retval;
- u32 bytes_written;
- ft2232_layout_t *cur_layout = ft2232_layouts;
+ uint32_t bytes_written;
+ const ft2232_layout_t* cur_layout = ft2232_layouts;
int i;
+ if (tap_get_tms_path_len(TAP_IRPAUSE,TAP_IRPAUSE) == 7)
+ {
+ LOG_DEBUG("ft2232 interface using 7 step jtag state transitions");
+ }
+ else
+ {
+ LOG_DEBUG("ft2232 interface using shortest path jtag state transitions");
+
+ }
if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
{
ft2232_layout = "usbjtag";
return ERROR_JTAG_INIT_FAILED;
}
- for (i = 0; 1; i++) {
+ for (i = 0; 1; i++)
+ {
/*
* "more indicates that there are more IDs to try, so we should
* not print an error for an ID mismatch (but for anything
* ID mismatch (and nothing else) and that we should proceeed
* with the next ID pair.
*/
- int more = ft2232_vid[i+1] || ft2232_pid[i+1];
+ int more = ft2232_vid[i + 1] || ft2232_pid[i + 1];
int try_more = 0;
#if BUILD_FT2232_FTD2XX == 1
retval = ft2232_init_ftd2xx(ft2232_vid[i], ft2232_pid[i],
- more, &try_more);
+ more, &try_more);
#elif BUILD_FT2232_LIBFTDI == 1
retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
- more, &try_more);
+ more, &try_more);
#endif
if (retval >= 0)
break;
if (layout->init() != ERROR_OK)
return ERROR_JTAG_INIT_FAILED;
- ft2232_speed(jtag_speed);
+ if (ft2232_device_is_highspeed())
+ {
+ if (ft2232h_ft4232h_clk_divide_by_5(false) != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ ft2232_speed(jtag_get_speed());
buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
if (((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK) || (bytes_written != 1))
return ERROR_OK;
}
-int usbjtag_init(void)
+static int usbjtag_init(void)
{
- u8 buf[3];
- u32 bytes_written;
+ uint8_t buf[3];
+ uint32_t bytes_written;
- low_output = 0x08;
+ low_output = 0x08;
low_direction = 0x0b;
if (strcmp(ft2232_layout, "usbjtag") == 0)
{
- nTRST = 0x10;
+ nTRST = 0x10;
nTRSTnOE = 0x10;
- nSRST = 0x40;
+ nSRST = 0x40;
nSRSTnOE = 0x40;
}
else if (strcmp(ft2232_layout, "signalyzer") == 0)
{
- nTRST = 0x10;
+ nTRST = 0x10;
nTRSTnOE = 0x10;
- nSRST = 0x20;
+ nSRST = 0x20;
nSRSTnOE = 0x20;
}
else if (strcmp(ft2232_layout, "evb_lm3s811") == 0)
nTRSTnOE = 0x00;
nSRST = 0x20;
nSRSTnOE = 0x20;
- low_output = 0x88;
+ low_output = 0x88;
low_direction = 0x8b;
}
+ else if (strcmp(ft2232_layout, "luminary_icdi") == 0)
+ {
+ nTRST = 0x0;
+ nTRSTnOE = 0x00;
+ nSRST = 0x20;
+ nSRSTnOE = 0x20;
+ low_output = 0x88;
+ low_direction = 0xcb;
+ }
else
{
LOG_ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout);
return ERROR_JTAG_INIT_FAILED;
}
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
{
low_direction &= ~nTRSTnOE; /* nTRST input */
- low_output &= ~nTRST; /* nTRST = 0 */
+ low_output &= ~nTRST; /* nTRST = 0 */
}
else
{
- low_direction |= nTRSTnOE; /* nTRST output */
- low_output |= nTRST; /* nTRST = 1 */
+ low_direction |= nTRSTnOE; /* nTRST output */
+ low_output |= nTRST; /* nTRST = 1 */
}
if (jtag_reset_config & RESET_SRST_PUSH_PULL)
{
- low_direction |= nSRSTnOE; /* nSRST output */
- low_output |= nSRST; /* nSRST = 1 */
+ low_direction |= nSRSTnOE; /* nSRST output */
+ low_output |= nSRST; /* nSRST = 1 */
}
else
{
low_direction &= ~nSRSTnOE; /* nSRST input */
- low_output &= ~nSRST; /* nSRST = 0 */
+ low_output &= ~nSRST; /* nSRST = 0 */
}
/* initialize low byte for jtag */
- buf[0] = 0x80; /* command "set data bits low byte" */
- buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, xRST high) */
- buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, xRST high) */
+ buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
return ERROR_OK;
}
-int axm0432_jtag_init(void)
+static int axm0432_jtag_init(void)
{
- u8 buf[3];
- u32 bytes_written;
+ uint8_t buf[3];
+ uint32_t bytes_written;
- low_output = 0x08;
+ low_output = 0x08;
low_direction = 0x2b;
/* initialize low byte for jtag */
- buf[0] = 0x80; /* command "set data bits low byte" */
- buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
- buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
+ buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
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*/
+ nTRST = 0x08;
+ nTRSTnOE = 0x0; /* No output enable for TRST*/
+ nSRST = 0x04;
+ nSRSTnOE = 0x0; /* No output enable for SRST*/
}
else
{
exit(-1);
}
- high_output = 0x0;
+ 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");
}
/* initialize high port */
- buf[0] = 0x82; /* command "set data bits high byte" */
- buf[1] = high_output; /* value */
- buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
+ buf[0] = 0x82; /* command "set data bits high byte" */
+ buf[1] = high_output; /* value */
+ buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
return ERROR_OK;
}
-int jtagkey_init(void)
+static int jtagkey_init(void)
{
- u8 buf[3];
- u32 bytes_written;
+ uint8_t buf[3];
+ uint32_t bytes_written;
- low_output = 0x08;
+ low_output = 0x08;
low_direction = 0x1b;
/* initialize low byte for jtag */
- buf[0] = 0x80; /* command "set data bits low byte" */
- buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
- buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
+ buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
if (strcmp(layout->name, "jtagkey") == 0)
{
- nTRST = 0x01;
+ nTRST = 0x01;
nTRSTnOE = 0x4;
- nSRST = 0x02;
+ nSRST = 0x02;
nSRSTnOE = 0x08;
}
- else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0) ||
- (strcmp(layout->name, "oocdlink") == 0))
+ else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0)
+ || (strcmp(layout->name, "oocdlink") == 0))
{
- nTRST = 0x02;
+ nTRST = 0x02;
nTRSTnOE = 0x1;
- nSRST = 0x08;
+ nSRST = 0x08;
nSRSTnOE = 0x04;
}
else
exit(-1);
}
- high_output = 0x0;
+ high_output = 0x0;
high_direction = 0x0f;
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
{
high_output |= nTRSTnOE;
}
/* initialize high port */
- buf[0] = 0x82; /* command "set data bits high byte" */
- buf[1] = high_output; /* value */
- buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
+ buf[0] = 0x82; /* command "set data bits high byte" */
+ buf[1] = high_output; /* value */
+ buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
return ERROR_OK;
}
-int olimex_jtag_init(void)
+static int olimex_jtag_init(void)
{
- u8 buf[3];
- u32 bytes_written;
+ uint8_t buf[3];
+ uint32_t bytes_written;
- low_output = 0x08;
+ low_output = 0x08;
low_direction = 0x1b;
/* initialize low byte for jtag */
- buf[0] = 0x80; /* command "set data bits low byte" */
- buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
- buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
+ buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout");
return ERROR_JTAG_INIT_FAILED;
}
- nTRST = 0x01;
+ nTRST = 0x01;
nTRSTnOE = 0x4;
- nSRST = 0x02;
+ nSRST = 0x02;
nSRSTnOE = 0x00; /* no output enable for nSRST */
- high_output = 0x0;
+ high_output = 0x0;
high_direction = 0x0f;
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
{
high_output |= nTRSTnOE;
high_output |= 0x08;
/* initialize high port */
- buf[0] = 0x82; /* command "set data bits high byte" */
- buf[1] = high_output; /* value */
- buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
+ buf[0] = 0x82; /* command "set data bits high byte" */
+ buf[1] = high_output; /* value */
+ buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
- if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+ if ((ft2232_write(buf, 3, &bytes_written) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout");
return ERROR_JTAG_INIT_FAILED;
}
return ERROR_OK;
}
-int flyswatter_init(void)
+static int flyswatter_init(void)
{
- u8 buf[3];
- u32 bytes_written;
+ uint8_t buf[3];
+ uint32_t bytes_written;
- low_output = 0x18;
+ low_output = 0x18;
low_direction = 0xfb;
/* initialize low byte for jtag */
- buf[0] = 0x80; /* command "set data bits low byte" */
- buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
- buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE[12]=out, n[ST]srst=out */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
+ buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE[12]=out, n[ST]srst = out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
return ERROR_JTAG_INIT_FAILED;
}
- nTRST = 0x10;
- nTRSTnOE = 0x0; /* not output enable for nTRST */
- nSRST = 0x20;
- nSRSTnOE = 0x00; /* no output enable for nSRST */
+ nTRST = 0x10;
+ nTRSTnOE = 0x0; /* not output enable for nTRST */
+ nSRST = 0x20;
+ nSRSTnOE = 0x00; /* no output enable for nSRST */
- high_output = 0x00;
+ high_output = 0x00;
high_direction = 0x0c;
- /* turn red LED1 on, LED2 off */
+ /* turn red LED3 on, LED2 off */
high_output |= 0x08;
/* initialize high port */
- buf[0] = 0x82; /* command "set data bits high byte" */
- buf[1] = high_output; /* value */
- buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
+ buf[0] = 0x82; /* command "set data bits high byte" */
+ buf[1] = high_output; /* value */
+ buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
return ERROR_OK;
}
-int turtle_init(void)
+static int turtle_init(void)
{
- u8 buf[3];
- u32 bytes_written;
+ uint8_t buf[3];
+ uint32_t bytes_written;
- low_output = 0x08;
+ low_output = 0x08;
low_direction = 0x5b;
/* initialize low byte for jtag */
- buf[0] = 0x80; /* command "set data bits low byte" */
- buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
- buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
+ buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
nSRST = 0x40;
- high_output = 0x00;
+ high_output = 0x00;
high_direction = 0x0C;
/* initialize high port */
return ERROR_OK;
}
-int comstick_init(void)
+static int comstick_init(void)
{
- u8 buf[3];
- u32 bytes_written;
+ uint8_t buf[3];
+ uint32_t bytes_written;
- low_output = 0x08;
+ low_output = 0x08;
low_direction = 0x0b;
/* initialize low byte for jtag */
- buf[0] = 0x80; /* command "set data bits low byte" */
- buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
- buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
+ buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
return ERROR_JTAG_INIT_FAILED;
}
- nTRST = 0x01;
- nTRSTnOE = 0x00; /* no output enable for nTRST */
- nSRST = 0x02;
- nSRSTnOE = 0x00; /* no output enable for nSRST */
+ nTRST = 0x01;
+ nTRSTnOE = 0x00; /* no output enable for nTRST */
+ nSRST = 0x02;
+ nSRSTnOE = 0x00; /* no output enable for nSRST */
- high_output = 0x03;
+ high_output = 0x03;
high_direction = 0x03;
/* initialize high port */
return ERROR_OK;
}
-int stm32stick_init(void)
+static int stm32stick_init(void)
{
- u8 buf[3];
- u32 bytes_written;
+ uint8_t buf[3];
+ uint32_t bytes_written;
- low_output = 0x88;
+ low_output = 0x88;
low_direction = 0x8b;
/* initialize low byte for jtag */
- buf[0] = 0x80; /* command "set data bits low byte" */
- buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
- buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
+ buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
return ERROR_JTAG_INIT_FAILED;
}
- nTRST = 0x01;
- nTRSTnOE = 0x00; /* no output enable for nTRST */
- nSRST = 0x80;
- nSRSTnOE = 0x00; /* no output enable for nSRST */
+ nTRST = 0x01;
+ nTRSTnOE = 0x00; /* no output enable for nTRST */
+ nSRST = 0x80;
+ nSRSTnOE = 0x00; /* no output enable for nSRST */
- high_output = 0x01;
+ high_output = 0x01;
high_direction = 0x03;
/* initialize high port */
return ERROR_OK;
}
-void olimex_jtag_blink(void)
+static int sheevaplug_init(void)
+{
+ uint8_t buf[3];
+ uint32_t bytes_written;
+
+ low_output = 0x08;
+ low_direction = 0x1b;
+
+ /* initialize low byte for jtag */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
+ buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in */
+ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+ {
+ LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ nTRSTnOE = 0x1;
+ nTRST = 0x02;
+ nSRSTnOE = 0x4;
+ nSRST = 0x08;
+
+ high_output = 0x0;
+ high_direction = 0x0f;
+
+ /* nTRST is always push-pull */
+ high_output &= ~nTRSTnOE;
+ high_output |= nTRST;
+
+ /* nSRST is always open-drain */
+ high_output |= nSRSTnOE;
+ high_output &= ~nSRST;
+
+ /* initialize high port */
+ buf[0] = 0x82; /* command "set data bits high byte" */
+ buf[1] = high_output; /* value */
+ buf[2] = high_direction; /* all outputs - xRST */
+ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+ {
+ LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ return ERROR_OK;
+}
+
+static int cortino_jtag_init(void)
+{
+ uint8_t buf[3];
+ uint32_t bytes_written;
+
+ low_output = 0x08;
+ low_direction = 0x1b;
+
+ /* initialize low byte for jtag */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
+ buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
+ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+ {
+ LOG_ERROR("couldn't initialize FT2232 with 'cortino' layout");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ nTRST = 0x01;
+ nTRSTnOE = 0x00; /* no output enable for nTRST */
+ nSRST = 0x02;
+ nSRSTnOE = 0x00; /* no output enable for nSRST */
+
+ high_output = 0x03;
+ high_direction = 0x03;
+
+ /* initialize high port */
+ buf[0] = 0x82; /* command "set data bits high byte" */
+ buf[1] = high_output;
+ buf[2] = high_direction;
+ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+ {
+ LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ return ERROR_OK;
+}
+
+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_ADD = 0x82;
- BUFFER_ADD = high_output;
- BUFFER_ADD = high_direction;
+ buffer_write(0x82);
+ buffer_write(high_output);
+ buffer_write(high_direction);
+}
+
+static void flyswatter_jtag_blink(void)
+{
+ /*
+ * Flyswatter has two LEDs connected to ACBUS2 and ACBUS3
+ */
+ high_output ^= 0x0c;
+
+ buffer_write(0x82);
+ buffer_write(high_output);
+ buffer_write(high_direction);
}
-void turtle_jtag_blink(void)
+static void turtle_jtag_blink(void)
{
/*
- * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
+ * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
*/
if (high_output & 0x08)
{
high_output = 0x08;
}
- BUFFER_ADD = 0x82;
- BUFFER_ADD = high_output;
- BUFFER_ADD = high_direction;
+ buffer_write(0x82);
+ buffer_write(high_output);
+ buffer_write(high_direction);
}
-int ft2232_quit(void)
+static int ft2232_quit(void)
{
#if BUILD_FT2232_FTD2XX == 1
FT_STATUS status;
status = FT_Close(ftdih);
#elif BUILD_FT2232_LIBFTDI == 1
- ftdi_disable_bitbang(&ftdic);
-
ftdi_usb_close(&ftdic);
ftdi_deinit(&ftdic);
return ERROR_OK;
}
-int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int ft2232_handle_device_desc_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
{
+ char *cp;
+ char buf[200];
if (argc == 1)
{
ft2232_device_desc = strdup(args[0]);
+ cp = strchr(ft2232_device_desc, 0);
+ /* under Win32, the FTD2XX driver appends an "A" to the end
+ * of the description, this examines the given desc
+ * and creates the 'missing' _A or non_A variable. */
+ if ((cp[-1] == 'A') && (cp[-2]==' ')) {
+ /* it was, so make this the "A" version. */
+ ft2232_device_desc_A = ft2232_device_desc;
+ /* and *CREATE* the non-A version. */
+ strcpy(buf, ft2232_device_desc);
+ cp = strchr(buf, 0);
+ cp[-2] = 0;
+ ft2232_device_desc = strdup(buf);
+ } else {
+ /* <space > A not defined
+ * so create it */
+ sprintf(buf, "%s A", ft2232_device_desc);
+ ft2232_device_desc_A = strdup(buf);
+ }
}
else
{
return ERROR_OK;
}
-int ft2232_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int ft2232_handle_serial_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
{
if (argc == 1)
{
return ERROR_OK;
}
-int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int ft2232_handle_layout_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
{
if (argc == 0)
return ERROR_OK;
return ERROR_OK;
}
-int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int ft2232_handle_vid_pid_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
{
- int i;
-
- if (argc > MAX_USB_IDS*2) {
+ if (argc > MAX_USB_IDS * 2)
+ {
LOG_WARNING("ignoring extra IDs in ft2232_vid_pid "
- "(maximum is %d pairs)", MAX_USB_IDS);
- argc = MAX_USB_IDS*2;
+ "(maximum is %d pairs)", MAX_USB_IDS);
+ argc = MAX_USB_IDS * 2;
}
if (argc < 2 || (argc & 1))
{
LOG_WARNING("incomplete ft2232_vid_pid configuration directive");
if (argc < 2)
- return ERROR_OK;
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ /* remove the incomplete trailing id */
+ argc -= 1;
}
- for (i = 0; i+1 < argc; i += 2) {
- ft2232_vid[i >> 1] = strtol(args[i], NULL, 0);
- ft2232_pid[i >> 1] = strtol(args[i+1], NULL, 0);
+ int i;
+ int retval = ERROR_OK;
+ for (i = 0; i < argc; i += 2)
+ {
+ retval = parse_u16(args[i], &ft2232_vid[i >> 1]);
+ if (ERROR_OK != retval)
+ break;
+ retval = parse_u16(args[i + 1], &ft2232_pid[i >> 1]);
+ if (ERROR_OK != retval)
+ break;
}
+
/*
* Explicitly terminate, in case there are multiples instances of
* ft2232_vid_pid.
*/
ft2232_vid[i >> 1] = ft2232_pid[i >> 1] = 0;
- return ERROR_OK;
+ return retval;
}
-int ft2232_handle_latency_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int ft2232_handle_latency_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
{
if (argc == 1)
{
return ERROR_OK;
}
+
+static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd)
+{
+ int retval = 0;
+
+ /* 7 bits of either ones or zeros. */
+ uint8_t tms = (tap_get_state() == TAP_RESET ? 0x7F : 0x00);
+
+ while (num_cycles > 0)
+ {
+ /* the command 0x4b, "Clock Data to TMS/CS Pin (no Read)" handles
+ * at most 7 bits per invocation. Here we invoke it potentially
+ * several times.
+ */
+ int bitcount_per_command = (num_cycles > 7) ? 7 : num_cycles;
+
+ if (ft2232_buffer_size + 3 >= FT2232_BUFFER_SIZE)
+ {
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+
+ first_unsent = cmd;
+ }
+
+ /* there are no state transitions in this code, so omit state tracking */
+
+ /* command "Clock Data to TMS/CS Pin (no Read)" */
+ buffer_write(0x4b);
+
+ /* scan 7 bit */
+ buffer_write(bitcount_per_command - 1);
+
+ /* TMS data bits are either all zeros or ones to stay in the current stable state */
+ buffer_write(tms);
+
+ require_send = 1;
+
+ num_cycles -= bitcount_per_command;
+ }
+
+ return retval;
+}
+
+/* ---------------------------------------------------------------------
+ * Support for IceBear JTAG adapter from Section5:
+ * http://section5.ch/icebear
+ *
+ * Author: Sten, debian@sansys-electronic.com
+ */
+
+/* Icebear pin layout
+ *
+ * ADBUS5 (nEMU) nSRST | 2 1| GND (10k->VCC)
+ * GND GND | 4 3| n.c.
+ * ADBUS3 TMS | 6 5| ADBUS6 VCC
+ * ADBUS0 TCK | 8 7| ADBUS7 (GND)
+ * ADBUS4 nTRST |10 9| ACBUS0 (GND)
+ * ADBUS1 TDI |12 11| ACBUS1 (GND)
+ * ADBUS2 TDO |14 13| GND GND
+ *
+ * ADBUS0 O L TCK ACBUS0 GND
+ * ADBUS1 O L TDI ACBUS1 GND
+ * ADBUS2 I TDO ACBUS2 n.c.
+ * ADBUS3 O H TMS ACBUS3 n.c.
+ * ADBUS4 O H nTRST
+ * ADBUS5 O H nSRST
+ * ADBUS6 - VCC
+ * ADBUS7 - GND
+ */
+static int icebear_jtag_init(void) {
+ uint8_t buf[3];
+ uint32_t bytes_written;
+
+ low_direction = 0x0b; /* output: TCK TDI TMS; input: TDO */
+ low_output = 0x08; /* high: TMS; low: TCK TDI */
+ nTRST = 0x10;
+ nSRST = 0x20;
+
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
+ if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0) {
+ low_direction &= ~nTRST; /* nTRST high impedance */
+ }
+ else {
+ low_direction |= nTRST;
+ low_output |= nTRST;
+ }
+
+ low_direction |= nSRST;
+ low_output |= nSRST;
+
+ /* initialize low byte for jtag */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output;
+ buf[2] = low_direction;
+ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) {
+ LOG_ERROR("couldn't initialize FT2232 with 'IceBear' layout (low)");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ high_output = 0x0;
+ high_direction = 0x00;
+
+
+ /* initialize high port */
+ buf[0] = 0x82; /* command "set data bits high byte" */
+ buf[1] = high_output; /* value */
+ buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
+ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) {
+ LOG_ERROR("couldn't initialize FT2232 with 'IceBear' layout (high)");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ return ERROR_OK;
+}
+
+static void icebear_jtag_reset(int trst, int srst) {
+
+ if (trst == 1) {
+ low_direction |= nTRST;
+ low_output &= ~nTRST;
+ }
+ else if (trst == 0) {
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
+ if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0)
+ low_direction &= ~nTRST;
+ else
+ low_output |= nTRST;
+ }
+
+ if (srst == 1) {
+ low_output &= ~nSRST;
+ }
+ else if (srst == 0) {
+ low_output |= nSRST;
+ }
+
+ /* command "set data bits low byte" */
+ buffer_write(0x80);
+ buffer_write(low_output);
+ buffer_write(low_direction);
+
+ LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction);
+}
projects / openocd / blobdiff