ftdi.c File Reference

JTAG adapters based on the FT2232 full and high speed USB parts are popular low cost JTAG debug solutions. More...

Include dependency graph for ftdi.c:

Go to the source code of this file.

Data Structures
struct	signal
struct	swd_cmd_queue_entry

Macros
#define	JTAG_MODE   (LSB_FIRST | POS_EDGE_IN | NEG_EDGE_OUT)
#define	JTAG_MODE_ALT   (LSB_FIRST | NEG_EDGE_IN | NEG_EDGE_OUT)
#define	MAX_USB_IDS   8
#define	SWD_MODE   (LSB_FIRST | POS_EDGE_IN | NEG_EDGE_OUT)

Functions
	COMMAND_HANDLER (ftdi_handle_channel_command)
	COMMAND_HANDLER (ftdi_handle_device_desc_command)
	COMMAND_HANDLER (ftdi_handle_get_signal_command)
	COMMAND_HANDLER (ftdi_handle_layout_init_command)
	COMMAND_HANDLER (ftdi_handle_layout_signal_command)
	COMMAND_HANDLER (ftdi_handle_set_signal_command)
	COMMAND_HANDLER (ftdi_handle_tdo_sample_edge_command)
	COMMAND_HANDLER (ftdi_handle_vid_pid_command)
static int	create_default_signal (const char *name, uint16_t data_mask)
static struct signal *	create_signal (const char *name)
static int	create_signals (void)
static struct signal *	find_signal_by_name (const char *name)
static void	ftdi_end_state (tap_state_t state)
static void	ftdi_execute_command (struct jtag_command *cmd)
static void	ftdi_execute_pathmove (struct jtag_command *cmd)
static int	ftdi_execute_queue (struct jtag_command *cmd_queue)
static void	ftdi_execute_runtest (struct jtag_command *cmd)
static void	ftdi_execute_scan (struct jtag_command *cmd)
static void	ftdi_execute_sleep (struct jtag_command *cmd)
static void	ftdi_execute_stableclocks (struct jtag_command *cmd)
static void	ftdi_execute_statemove (struct jtag_command *cmd)
static void	ftdi_execute_tms (struct jtag_command *cmd)
	Clock a bunch of TMS (or SWDIO) transitions, to change the JTAG (or SWD) state machine. More...
static int	ftdi_get_signal (const struct signal *s, uint16_t *value_out)
static int	ftdi_initialize (void)
static int	ftdi_khz (int khz, int *jtag_speed)
static int	ftdi_quit (void)
static int	ftdi_reset (int trst, int srst)
static int	ftdi_set_signal (const struct signal *s, char value)
static int	ftdi_speed (int speed)
static int	ftdi_speed_div (int speed, int *khz)
static int	ftdi_swd_init (void)
static void	ftdi_swd_queue_cmd (uint8_t cmd, uint32_t *dst, uint32_t data, uint32_t ap_delay_clk)
static void	ftdi_swd_read_reg (uint8_t cmd, uint32_t *value, uint32_t ap_delay_clk)
static int	ftdi_swd_run_queue (void)
	Flush the MPSSE queue and process the SWD transaction queue. More...
static void	ftdi_swd_swdio_en (bool enable)
static int	ftdi_swd_switch_seq (enum swd_special_seq seq)
static void	ftdi_swd_write_reg (uint8_t cmd, uint32_t value, uint32_t ap_delay_clk)
static void	move_to_state (tap_state_t goal_state)
	Function move_to_state moves the TAP controller from the current state to a goal_state through a path given by tap_get_tms_path(). More...

Variables
static uint16_t	direction
static int	freq
struct adapter_driver	ftdi_adapter_driver
static uint8_t	ftdi_channel
static const struct command_registration	ftdi_command_handlers []
static char *	ftdi_device_desc
static struct jtag_interface	ftdi_interface
static uint8_t	ftdi_jtag_mode = JTAG_MODE
static uint16_t	ftdi_pid [MAX_USB_IDS+1] = { 0 }
static const struct command_registration	ftdi_subcommand_handlers []
static const struct swd_driver	ftdi_swd
static const char *const	ftdi_transports [] = { "jtag", "swd", NULL }
static uint16_t	ftdi_vid [MAX_USB_IDS+1] = { 0 }
static uint16_t	jtag_direction_init
static uint16_t	jtag_output_init
static struct mpsse_ctx *	mpsse_ctx
static uint16_t	output
static int	queued_retval
static struct signal *	signals
static struct swd_cmd_queue_entry *	swd_cmd_queue
static size_t	swd_cmd_queue_alloced
static size_t	swd_cmd_queue_length
static bool	swd_mode

Detailed Description

JTAG adapters based on the FT2232 full and high speed USB parts are popular low cost JTAG debug solutions.

Many FT2232 based JTAG adapters are discrete, but development boards may integrate them as alternatives to more capable (and expensive) third party JTAG pods.

JTAG uses only one of the two communications channels ("MPSSE engines") on these devices. Adapters based on FT4232 parts have four ports/channels (A/B/C/D), instead of just two (A/B).

Especially on development boards integrating one of these chips (as opposed to discrete pods/dongles), the additional channels can be used for a variety of purposes, but OpenOCD only uses one channel at a time.

• As a USB-to-serial adapter for the target's console UART ... which may be able to support ROM boot loaders that load initial firmware images to flash (or SRAM).
• On systems which support ARM's SWD in addition to JTAG, or instead of it, that second port can be used for reading SWV/SWO trace data.
• Additional JTAG links, e.g. to a CPLD or * FPGA.

FT2232 based JTAG adapters are "dumb" not "smart", because most JTAG request/response interactions involve round trips over the USB link. A "smart" JTAG adapter has intelligence close to the scan chain, so it can for example poll quickly for a status change (usually taking on the order of microseconds not milliseconds) before beginning a queued transaction which require the previous one to have completed.

There are dozens of adapters of this type, differing in details which this driver needs to understand. Those "layout" details are required as part of FT2232 driver configuration.

This code uses information contained in the MPSSE specification which was found here: https://www.ftdichip.com/Support/Documents/AppNotes/AN2232C-01_MPSSE_Cmnd.pdf Hereafter this is called the "MPSSE Spec".

The datasheet for the ftdichip.com's FT2232H part is here: https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT2232H.pdf

Also note the issue with code 0x4b (clock data to TMS) noted in http://developer.intra2net.com/mailarchive/html/libftdi/2009/msg00292.html which can affect longer JTAG state paths.

Definition in file ftdi.c.

Macro Definition Documentation

JTAG_MODE

#define JTAG_MODE   (LSB_FIRST | POS_EDGE_IN | NEG_EDGE_OUT)

Definition at line 78 of file ftdi.c.

JTAG_MODE_ALT

#define JTAG_MODE_ALT   (LSB_FIRST | NEG_EDGE_IN | NEG_EDGE_OUT)

Definition at line 79 of file ftdi.c.

MAX_USB_IDS

#define MAX_USB_IDS   8

Definition at line 88 of file ftdi.c.

SWD_MODE

#define SWD_MODE   (LSB_FIRST | POS_EDGE_IN | NEG_EDGE_OUT)

Definition at line 80 of file ftdi.c.

Function Documentation

COMMAND_HANDLER() [1/8]

COMMAND_HANDLER

(

ftdi_handle_channel_command

)

Definition at line 722 of file ftdi.c.

References CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, and ftdi_channel.

COMMAND_HANDLER() [2/8]

COMMAND_HANDLER

(

ftdi_handle_device_desc_command

)

Definition at line 710 of file ftdi.c.

References CMD_ARGC, CMD_ARGV, ERROR_OK, ftdi_device_desc, and LOG_ERROR.

COMMAND_HANDLER() [3/8]

COMMAND_HANDLER

(

ftdi_handle_get_signal_command

)

Definition at line 846 of file ftdi.c.

References CMD_ARGC, CMD_ARGV, ERROR_COMMAND_SYNTAX_ERROR, ERROR_FAIL, ERROR_OK, find_signal_by_name(), ftdi_get_signal(), LOG_ERROR, LOG_USER, and signal::name.

COMMAND_HANDLER() [4/8]

COMMAND_HANDLER

(

ftdi_handle_layout_init_command

)

Definition at line 732 of file ftdi.c.

References CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, jtag_direction_init, and jtag_output_init.

COMMAND_HANDLER() [5/8]

COMMAND_HANDLER

(

ftdi_handle_layout_signal_command

)

Definition at line 743 of file ftdi.c.

References CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, create_signal(), signal::data_mask, ERROR_COMMAND_SYNTAX_ERROR, ERROR_FAIL, ERROR_OK, find_signal_by_name(), signal::input_mask, signal::invert_data, signal::invert_input, signal::invert_oe, LOG_ERROR, and signal::oe_mask.

COMMAND_HANDLER() [6/8]

COMMAND_HANDLER

(

ftdi_handle_set_signal_command

)

Definition at line 815 of file ftdi.c.

References CMD_ARGC, CMD_ARGV, ERROR_COMMAND_ARGUMENT_INVALID, ERROR_COMMAND_SYNTAX_ERROR, ERROR_FAIL, find_signal_by_name(), ftdi_set_signal(), LOG_ERROR, and mpsse_flush().

COMMAND_HANDLER() [7/8]

COMMAND_HANDLER

(

ftdi_handle_tdo_sample_edge_command

)

Definition at line 898 of file ftdi.c.

References CMD, CMD_ARGC, CMD_ARGV, command_print(), ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, ftdi_jtag_mode, JTAG_MODE, JTAG_MODE_ALT, nvp::name, NULL, nvp_name2value(), nvp_value2name(), and nvp::value.

COMMAND_HANDLER() [8/8]

COMMAND_HANDLER

(

ftdi_handle_vid_pid_command

)

Definition at line 868 of file ftdi.c.

References CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, ftdi_pid, ftdi_vid, LOG_WARNING, and MAX_USB_IDS.

create_default_signal()

static int create_default_signal ( const char *  name, uint16_t  data_mask  )

static

Definition at line 996 of file ftdi.c.

References create_signal(), signal::data_mask, ERROR_FAIL, ERROR_OK, signal::invert_data, signal::invert_oe, LOG_ERROR, name, and signal::oe_mask.

Referenced by create_signals().

create_signal()

static struct signal* create_signal ( const char *  name )

static

Definition at line 135 of file ftdi.c.

References name, signal::next, NULL, and signals.

Referenced by COMMAND_HANDLER(), and create_default_signal().

create_signals()

static int create_signals ( void  )

static

Definition at line 1011 of file ftdi.c.

References create_default_signal(), ERROR_FAIL, and ERROR_OK.

Referenced by ftdi_swd_init().

find_signal_by_name()

static struct signal* find_signal_by_name ( const char *  name )

static

Definition at line 126 of file ftdi.c.

References name, signal::next, NULL, and signals.

Referenced by COMMAND_HANDLER(), ftdi_execute_queue(), ftdi_initialize(), ftdi_reset(), ftdi_swd_run_queue(), and ftdi_swd_swdio_en().

ftdi_end_state()

static void ftdi_end_state ( tap_state_t  state )

static

Definition at line 302 of file ftdi.c.

References LOG_ERROR, state, tap_is_state_stable(), tap_set_end_state(), and tap_state_name().

Referenced by ftdi_execute_runtest(), ftdi_execute_scan(), and ftdi_execute_statemove().

ftdi_execute_command()

static void ftdi_execute_command ( struct jtag_command *  cmd )

static

Definition at line 598 of file ftdi.c.

References cmd, ftdi_execute_pathmove(), ftdi_execute_runtest(), ftdi_execute_scan(), ftdi_execute_sleep(), ftdi_execute_stableclocks(), ftdi_execute_statemove(), ftdi_execute_tms(), JTAG_PATHMOVE, JTAG_RUNTEST, JTAG_SCAN, JTAG_SLEEP, JTAG_STABLECLOCKS, JTAG_TLR_RESET, JTAG_TMS, and LOG_ERROR.

Referenced by ftdi_execute_queue().

ftdi_execute_pathmove()

static void ftdi_execute_pathmove ( struct jtag_command *  cmd )

static

Definition at line 372 of file ftdi.c.

References buf_set_u32(), cmd, ftdi_jtag_mode, LOG_DEBUG_IO, LOG_ERROR, mpsse_clock_tms_cs_out(), tap_get_state(), tap_set_end_state(), tap_set_state, tap_state_name(), and tap_state_transition().

Referenced by ftdi_execute_command().

ftdi_execute_queue()

static int ftdi_execute_queue ( struct jtag_command *  cmd_queue )

static

Definition at line 628 of file ftdi.c.

References cmd, ERROR_OK, find_signal_by_name(), ftdi_execute_command(), ftdi_set_signal(), LOG_ERROR, and mpsse_flush().

ftdi_execute_runtest()

static void ftdi_execute_runtest ( struct jtag_command *  cmd )

static

Definition at line 312 of file ftdi.c.

References cmd, ftdi_end_state(), ftdi_jtag_mode, LOG_DEBUG_IO, move_to_state(), mpsse_clock_tms_cs_out(), tap_get_end_state(), tap_get_state(), TAP_IDLE, tap_state_name(), and zero.

Referenced by ftdi_execute_command().

ftdi_execute_scan()

static void ftdi_execute_scan ( struct jtag_command *  cmd )

static

Definition at line 423 of file ftdi.c.

References bit_copy(), cmd, ftdi_end_state(), ftdi_jtag_mode, scan_field::in_value, jtag_scan_type(), LOG_DEBUG_IO, move_to_state(), mpsse_clock_data(), mpsse_clock_tms_cs(), mpsse_clock_tms_cs_out(), scan_field::num_bits, scan_field::out_value, TAP_DRSHIFT, tap_get_end_state(), tap_get_state(), TAP_IDLE, TAP_IRSHIFT, tap_set_state, tap_state_name(), and tap_state_transition().

Referenced by ftdi_execute_command().

ftdi_execute_sleep()

static void ftdi_execute_sleep ( struct jtag_command *  cmd )

static

Definition at line 563 of file ftdi.c.

References cmd, jtag_sleep(), LOG_DEBUG_IO, mpsse_flush(), tap_get_state(), and tap_state_name().

Referenced by ftdi_execute_command().

ftdi_execute_stableclocks()

static void ftdi_execute_stableclocks ( struct jtag_command *  cmd )

static

Definition at line 574 of file ftdi.c.

References cmd, ftdi_jtag_mode, LOG_DEBUG_IO, mpsse_clock_tms_cs_out(), tap_get_state(), TAP_RESET, and tap_state_name().

Referenced by ftdi_execute_command().

ftdi_execute_statemove()

static void ftdi_execute_statemove ( struct jtag_command *  cmd )

static

Definition at line 343 of file ftdi.c.

References cmd, ftdi_end_state(), LOG_DEBUG_IO, move_to_state(), tap_get_end_state(), tap_get_state(), TAP_RESET, and tap_state_name().

Referenced by ftdi_execute_command().

ftdi_execute_tms()

static void ftdi_execute_tms ( struct jtag_command *  cmd )

static

Clock a bunch of TMS (or SWDIO) transitions, to change the JTAG (or SWD) state machine.

REVISIT: Not the best method, perhaps.

Definition at line 359 of file ftdi.c.

References cmd, ftdi_jtag_mode, LOG_DEBUG_IO, and mpsse_clock_tms_cs_out().

Referenced by ftdi_execute_command().

ftdi_get_signal()

static int ftdi_get_signal ( const struct signal *  s, uint16_t *  value_out  )

static

Definition at line 206 of file ftdi.c.

References ERROR_FAIL, ERROR_OK, signal::input_mask, signal::invert_input, LOG_ERROR, mpsse_flush(), mpsse_read_data_bits_high_byte(), mpsse_read_data_bits_low_byte(), and signal::name.

Referenced by COMMAND_HANDLER().

ftdi_initialize()

static int ftdi_initialize ( void  )

static

Definition at line 650 of file ftdi.c.

References adapter_get_required_serial(), adapter_get_speed_khz(), adapter_usb_get_location(), signal::data_mask, direction, ERROR_JTAG_INIT_FAILED, find_signal_by_name(), freq, ftdi_channel, ftdi_device_desc, ftdi_pid, ftdi_set_signal(), ftdi_vid, jtag_direction_init, jtag_output_init, LOG_DEBUG, LOG_ERROR, mpsse_flush(), mpsse_loopback_config(), mpsse_open(), mpsse_set_data_bits_high_byte(), mpsse_set_data_bits_low_byte(), mpsse_set_frequency(), output, swd_mode, tap_get_tms_path_len(), and TAP_IRPAUSE.

ftdi_khz()

static int ftdi_khz ( int  khz, int *  jtag_speed  )

static

Definition at line 291 of file ftdi.c.

References ERROR_FAIL, ERROR_OK, LOG_DEBUG, and mpsse_is_high_speed().

ftdi_quit()

static int ftdi_quit ( void  )

static

Definition at line 691 of file ftdi.c.

References ERROR_OK, ftdi_device_desc, mpsse_close(), signal::name, signal::next, signals, and swd_cmd_queue.

ftdi_reset()

static int ftdi_reset ( int  trst, int  srst  )

static

Definition at line 525 of file ftdi.c.

References find_signal_by_name(), ftdi_set_signal(), jtag_get_reset_config(), LOG_DEBUG_IO, LOG_ERROR, mpsse_flush(), RESET_HAS_SRST, RESET_HAS_TRST, RESET_SRST_PUSH_PULL, RESET_TRST_OPEN_DRAIN, and swd_mode.

ftdi_set_signal()

static int ftdi_set_signal ( const struct signal *  s, char  value  )

static

Definition at line 153 of file ftdi.c.

References signal::data_mask, direction, ERROR_FAIL, ERROR_OK, signal::invert_data, signal::invert_oe, LOG_ERROR, mpsse_set_data_bits_high_byte(), mpsse_set_data_bits_low_byte(), signal::name, signal::oe_mask, and output.

Referenced by COMMAND_HANDLER(), ftdi_execute_queue(), ftdi_initialize(), ftdi_reset(), ftdi_swd_run_queue(), and ftdi_swd_swdio_en().

ftdi_speed()

static int ftdi_speed ( int  speed )

static

Definition at line 269 of file ftdi.c.

References ERROR_OK, ftdi_jtag_mode, JTAG_MODE_ALT, LOG_ERROR, LOG_INFO, mpsse_set_frequency(), and swd_mode.

ftdi_speed_div()

static int ftdi_speed_div ( int  speed, int *  khz  )

static

Definition at line 285 of file ftdi.c.

References ERROR_OK.

ftdi_swd_init()

static int ftdi_swd_init ( void  )

static

Definition at line 1024 of file ftdi.c.

References create_signals(), ERROR_FAIL, ERROR_OK, LOG_INFO, swd_cmd_queue, swd_cmd_queue_alloced, and swd_mode.

ftdi_swd_queue_cmd()

static void ftdi_swd_queue_cmd ( uint8_t  cmd, uint32_t *  dst, uint32_t  data, uint32_t  ap_delay_clk  )

static

Definition at line 1132 of file ftdi.c.

References buf_set_u32(), swd_cmd_queue_entry::cmd, cmd, swd_cmd_queue_entry::dst, ERROR_OK, ftdi_swd_run_queue(), ftdi_swd_swdio_en(), LOG_DEBUG, mpsse_clock_data_in(), mpsse_clock_data_out(), NULL, parity_u32(), queued_retval, SWD_CMD_APNDP, SWD_CMD_PARK, swd_cmd_queue, swd_cmd_queue_alloced, swd_cmd_queue_length, SWD_CMD_RNW, SWD_CMD_START, SWD_MODE, and swd_cmd_queue_entry::trn_ack_data_parity_trn.

Referenced by ftdi_swd_read_reg(), and ftdi_swd_write_reg().

ftdi_swd_read_reg()

static void ftdi_swd_read_reg ( uint8_t  cmd, uint32_t *  value, uint32_t  ap_delay_clk  )

static

Definition at line 1185 of file ftdi.c.

References cmd, ftdi_swd_queue_cmd(), and SWD_CMD_RNW.

ftdi_swd_run_queue()

static int ftdi_swd_run_queue ( void  )

static

Flush the MPSSE queue and process the SWD transaction queue.

Returns

Definition at line 1060 of file ftdi.c.

References buf_get_u32(), cmd, swd_cmd_queue_entry::dst, ERROR_FAIL, ERROR_OK, find_signal_by_name(), ftdi_set_signal(), LOG_CUSTOM_LEVEL, LOG_DEBUG_IO, LOG_ERROR, LOG_LVL_DEBUG, LOG_LVL_DEBUG_IO, mpsse_clock_data_out(), mpsse_flush(), NULL, parity(), parity_u32(), queued_retval, SWD_ACK_FAULT, SWD_ACK_OK, swd_ack_to_error_code(), SWD_ACK_WAIT, SWD_CMD_A32, SWD_CMD_APNDP, swd_cmd_queue, swd_cmd_queue_length, swd_cmd_returns_ack(), SWD_CMD_RNW, and SWD_MODE.

Referenced by ftdi_swd_queue_cmd().

ftdi_swd_swdio_en()

static void ftdi_swd_swdio_en ( bool  enable )

static

Definition at line 1038 of file ftdi.c.

References signal::data_mask, direction, find_signal_by_name(), ftdi_set_signal(), jtag_direction_init, mpsse_set_data_bits_low_byte(), and output.

Referenced by ftdi_swd_queue_cmd().

ftdi_swd_switch_seq()

static int ftdi_swd_switch_seq ( enum swd_special_seq  seq )

static

Definition at line 1197 of file ftdi.c.

ftdi_swd_write_reg()

static void ftdi_swd_write_reg ( uint8_t  cmd, uint32_t  value, uint32_t  ap_delay_clk  )

static

Definition at line 1191 of file ftdi.c.

References cmd, ftdi_swd_queue_cmd(), NULL, and SWD_CMD_RNW.

move_to_state()

static void move_to_state ( tap_state_t  goal_state )

static

Function move_to_state moves the TAP controller from the current state to a goal_state through a path given by tap_get_tms_path().

State transition logging is performed by delegation to clock_tms().

Parameters

goal_state

is the destination state for the move.

Definition at line 241 of file ftdi.c.

References ftdi_jtag_mode, LOG_DEBUG_IO, mpsse_clock_tms_cs_out(), tap_get_state(), tap_get_tms_path(), tap_get_tms_path_len(), tap_set_state, tap_state_name(), and tap_state_transition().

Referenced by ftdi_execute_runtest(), ftdi_execute_scan(), and ftdi_execute_statemove().

Variable Documentation

direction

uint16_t direction

static

Definition at line 120 of file ftdi.c.

Referenced by adapter_driver_gpios_init(), angie_allocate_payload(), angie_get_queue_size(), armv4_5_run_algorithm_inner(), armv7m_start_algorithm(), armv7m_wait_algorithm(), COMMAND_HELPER(), dsp563xx_run_algorithm(), ftdi_initialize(), ftdi_set_signal(), ftdi_swd_swdio_en(), init_mem_param(), init_reg_param(), mips32_run_algorithm(), riscv_run_algorithm(), stlink_usb_init_buffer(), stlink_usb_xfer_v1_create_cmd(), stm8_run_algorithm(), ulink_allocate_payload(), ulink_get_queue_size(), usbprog_jtag_set_direction(), xtensa_start_algorithm(), and xtensa_wait_algorithm().

freq

int freq

static

Definition at line 117 of file ftdi.c.

Referenced by FLASH_BANK_COMMAND_HANDLER(), and ftdi_initialize().

ftdi_adapter_driver

struct adapter_driver ftdi_adapter_driver

Initial value:

= {
    .name = "ftdi",
    .transports = ftdi_transports,
    .commands = ftdi_command_handlers,
 
    .init = ftdi_initialize,
    .quit = ftdi_quit,
    .reset = ftdi_reset,
    .speed = ftdi_speed,
    .khz = ftdi_khz,
    .speed_div = ftdi_speed_div,
 
    .jtag_ops = &ftdi_interface,
    .swd_ops = &ftdi_swd,
}

Definition at line 1251 of file ftdi.c.

ftdi_channel

uint8_t ftdi_channel

static

Definition at line 83 of file ftdi.c.

Referenced by COMMAND_HANDLER(), and ftdi_initialize().

ftdi_command_handlers

const struct command_registration ftdi_command_handlers[]

static

Initial value:

= {
    {
        .name = "ftdi",
        .mode = COMMAND_ANY,
        .help = "perform ftdi management",
        .chain = ftdi_subcommand_handlers,
        .usage = "",
    },
    COMMAND_REGISTRATION_DONE
}

Definition at line 898 of file ftdi.c.

ftdi_device_desc

char* ftdi_device_desc

static

Definition at line 82 of file ftdi.c.

Referenced by COMMAND_HANDLER(), ftdi_initialize(), and ftdi_quit().

ftdi_interface

struct jtag_interface ftdi_interface

static

Initial value:

= {
    .supported = DEBUG_CAP_TMS_SEQ,
    .execute_queue = ftdi_execute_queue,
}

Definition at line 1251 of file ftdi.c.

ftdi_jtag_mode

uint8_t ftdi_jtag_mode = JTAG_MODE

static

Definition at line 84 of file ftdi.c.

Referenced by COMMAND_HANDLER(), ftdi_execute_pathmove(), ftdi_execute_runtest(), ftdi_execute_scan(), ftdi_execute_stableclocks(), ftdi_execute_tms(), ftdi_speed(), and move_to_state().

ftdi_pid

uint16_t ftdi_pid[MAX_USB_IDS+1] = { 0 }

static

Definition at line 91 of file ftdi.c.

Referenced by COMMAND_HANDLER(), and ftdi_initialize().

ftdi_subcommand_handlers

const struct command_registration ftdi_subcommand_handlers[]

static

Definition at line 898 of file ftdi.c.

ftdi_swd

const struct swd_driver ftdi_swd

static

Initial value:

= {
    .init = ftdi_swd_init,
    .switch_seq = ftdi_swd_switch_seq,
    .read_reg = ftdi_swd_read_reg,
    .write_reg = ftdi_swd_write_reg,
    .run = ftdi_swd_run_queue,
}

Definition at line 1197 of file ftdi.c.

ftdi_transports

const char* const ftdi_transports[] = { "jtag", "swd", NULL }

static

Definition at line 1251 of file ftdi.c.

ftdi_vid

uint16_t ftdi_vid[MAX_USB_IDS+1] = { 0 }

static

Definition at line 90 of file ftdi.c.

Referenced by COMMAND_HANDLER(), and ftdi_initialize().

jtag_direction_init

uint16_t jtag_direction_init

static

Definition at line 122 of file ftdi.c.

Referenced by COMMAND_HANDLER(), ftdi_initialize(), and ftdi_swd_swdio_en().

jtag_output_init

uint16_t jtag_output_init

static

Definition at line 121 of file ftdi.c.

Referenced by COMMAND_HANDLER(), and ftdi_initialize().

mpsse_ctx

struct mpsse_ctx* mpsse_ctx

static

Definition at line 93 of file ftdi.c.

output

uint16_t output

static

Definition at line 119 of file ftdi.c.

Referenced by COMMAND_HANDLER(), ftdi_initialize(), ftdi_set_signal(), ftdi_swd_swdio_en(), handle_iod_output(), parport_write_data(), and target_handle_md_output().

queued_retval

int queued_retval

static

Definition at line 116 of file ftdi.c.

Referenced by ftdi_swd_queue_cmd(), and ftdi_swd_run_queue().

signals

struct signal* signals

static

Definition at line 106 of file ftdi.c.

Referenced by create_signal(), find_signal_by_name(), and ftdi_quit().

swd_cmd_queue

struct swd_cmd_queue_entry * swd_cmd_queue

static

Referenced by ftdi_quit(), ftdi_swd_init(), ftdi_swd_queue_cmd(), and ftdi_swd_run_queue().

swd_cmd_queue_alloced

size_t swd_cmd_queue_alloced

static

Definition at line 115 of file ftdi.c.

Referenced by ftdi_swd_init(), and ftdi_swd_queue_cmd().

swd_cmd_queue_length

size_t swd_cmd_queue_length

static

Definition at line 114 of file ftdi.c.

Referenced by ftdi_swd_queue_cmd(), and ftdi_swd_run_queue().

swd_mode

bool swd_mode

static

Definition at line 86 of file ftdi.c.

Referenced by ftdi_initialize(), ftdi_reset(), ftdi_speed(), and ftdi_swd_init().