usb_blaster.c File Reference

Include dependency graph for usb_blaster.c:

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Data Structures
struct	drvs_map
struct	ublast_info

Macros
#define	BUF_LEN   4096
#define	CMD_COPY_TDO_BUFFER   0x5F
#define	LED   (1 << 5)
#define	MAX_PACKET_SIZE   64
#define	NCE   (1 << 2)
#define	NCS   (1 << 3)
#define	READ   (1 << 6)
#define	READ_TDO   (1 << 0)
#define	SHMODE   (1 << 7)
#define	TCK   (1 << 0)
#define	TDI   (1 << 4)
#define	TMS   (1 << 1)

Enumerations
enum	gpio_steer { FIXED_0 = 0 , FIXED_1 , SRST , TRST }

Functions
	COMMAND_HANDLER (ublast_firmware_command)
	COMMAND_HANDLER (ublast_handle_lowlevel_drv_command)
	COMMAND_HANDLER (ublast_handle_pin_command)
	COMMAND_HANDLER (ublast_handle_vid_pid_command)
static char *	hexdump (uint8_t *buf, unsigned int size)
static int	nb_buf_remaining (void)
static int	ublast_buf_read (uint8_t *buf, unsigned int size, uint32_t *bytes_read)
static int	ublast_buf_write (uint8_t *buf, int size, uint32_t *bytes_written)
static uint8_t	ublast_build_out (enum scan_type type)
	ublast_build_out - build bitbang mode output byte More...
static void	ublast_clock_tdi (int tdi, enum scan_type type)
	ublast_clock_tdi - Output a TDI with bitbang mode More...
static void	ublast_clock_tdi_flip_tms (int tdi, enum scan_type type)
	ublast_clock_tdi_flip_tms - Output a TDI with bitbang mode, change JTAG state More...
static void	ublast_clock_tms (int tms)
	ublast_clock_tms - clock a TMS transition More...
static bool	ublast_compute_pin (enum gpio_steer steer)
	ublast_compute_pin - compute if gpio should be asserted More...
static int	ublast_execute_queue (struct jtag_command *cmd_queue)
static void	ublast_flush_buffer (void)
static void	ublast_idle_clock (void)
	ublast_idle_clock - put back TCK to low level More...
static int	ublast_init (void)
	ublast_init - Initialize the Altera device More...
static void	ublast_initial_wipeout (void)
static void	ublast_path_move (struct pathmove_command *cmd)
	ublast_path_move - write a TMS sequence transition to JTAG More...
static void	ublast_queue_byte (uint8_t abyte)
	ublast_queue_byte - queue one 'bitbang mode' byte for USB Blaster More...
static void	ublast_queue_bytes (uint8_t *bytes, int nb_bytes)
	ublast_queue_bytes - queue bytes for the USB Blaster More...
static void	ublast_queue_tdi (uint8_t *bits, int nb_bits, enum scan_type scan)
	ublast_queue_tdi - short description More...
static int	ublast_quit (void)
	ublast_quit - Release the Altera device More...
static int	ublast_read_bitbang_tdos (uint8_t *buf, int nb_bits)
	ublast_read_bitbang_tdos - read TDO of bitbang writes More...
static int	ublast_read_byteshifted_tdos (uint8_t *buf, int nb_bytes)
	ublast_read_byteshifted_tdos - read TDO of byteshift writes More...
static void	ublast_reset (int trst, int srst)
	ublast_reset - reset the JTAG device is possible More...
static void	ublast_runtest (unsigned int num_cycles, tap_state_t state)
static int	ublast_scan (struct scan_command *cmd)
	ublast_scan - launches a DR-scan or IR-scan More...
static void	ublast_stableclocks (unsigned int num_cycles)
static void	ublast_state_move (tap_state_t state, int skip)
	ublast_state_move - move JTAG state to the target state More...
static void	ublast_tms (struct tms_command *cmd)
	ublast_tms - write a tms command More...
static void	ublast_tms_seq (const uint8_t *bits, int nb_bits, int skip)
	ublast_tms_seq - write a TMS sequence transition to JTAG More...
static void	ublast_usleep (int us)

Variables
static struct ublast_info	info
static struct drvs_map	lowlevel_drivers_map []
static const struct command_registration	ublast_command_handlers []
static const struct command_registration	ublast_subcommand_handlers []
struct adapter_driver	usb_blaster_adapter_driver
static struct jtag_interface	usb_blaster_interface

Macro Definition Documentation

BUF_LEN

#define BUF_LEN   4096

Definition at line 87 of file usb_blaster.c.

CMD_COPY_TDO_BUFFER

#define CMD_COPY_TDO_BUFFER   0x5F

Definition at line 90 of file usb_blaster.c.

LED

#define LED   (1 << 5)

Definition at line 238 of file usb_blaster.c.

MAX_PACKET_SIZE

#define MAX_PACKET_SIZE   64

Definition at line 80 of file usb_blaster.c.

NCE

#define NCE   (1 << 2)

Definition at line 235 of file usb_blaster.c.

NCS

#define NCS   (1 << 3)

Definition at line 236 of file usb_blaster.c.

READ

#define READ   (1 << 6)

Definition at line 239 of file usb_blaster.c.

READ_TDO

#define READ_TDO   (1 << 0)

Definition at line 241 of file usb_blaster.c.

SHMODE

#define SHMODE   (1 << 7)

Definition at line 240 of file usb_blaster.c.

TCK

#define TCK   (1 << 0)

Definition at line 233 of file usb_blaster.c.

TDI

#define TDI   (1 << 4)

Definition at line 237 of file usb_blaster.c.

TMS

#define TMS   (1 << 1)

Definition at line 234 of file usb_blaster.c.

Enumeration Type Documentation

gpio_steer

enum gpio_steer

Enumerator
FIXED_0
FIXED_1
SRST
TRST

Definition at line 92 of file usb_blaster.c.

Function Documentation

COMMAND_HANDLER() [1/4]

COMMAND_HANDLER

(

ublast_firmware_command

)

Definition at line 997 of file usb_blaster.c.

COMMAND_HANDLER() [2/4]

COMMAND_HANDLER

(

ublast_handle_lowlevel_drv_command

)

Definition at line 987 of file usb_blaster.c.

References CMD_ARGC, CMD_ARGV, ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, info, and ublast_info::lowlevel_name.

COMMAND_HANDLER() [3/4]

COMMAND_HANDLER

(

ublast_handle_pin_command

)

Definition at line 921 of file usb_blaster.c.

References CMD_ARGC, CMD_ARGV, CMD_NAME, ublast_info::drv, ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, FIXED_0, FIXED_1, info, LOG_ERROR, LOG_INFO, NULL, ublast_info::pin6, ublast_info::pin8, SCAN_OUT, SRST, TRST, ublast_build_out(), ublast_flush_buffer(), and ublast_queue_byte().

COMMAND_HANDLER() [4/4]

COMMAND_HANDLER

(

ublast_handle_vid_pid_command

)

Definition at line 896 of file usb_blaster.c.

References CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, ERROR_OK, info, LOG_WARNING, ublast_info::ublast_pid, ublast_info::ublast_pid_uninit, ublast_info::ublast_vid, and ublast_info::ublast_vid_uninit.

hexdump()

static char* hexdump ( uint8_t *  buf, unsigned int  size  )

static

Definition at line 151 of file usb_blaster.c.

References size.

Referenced by ublast_buf_read(), ublast_buf_write(), and ublast_scan().

nb_buf_remaining()

static int nb_buf_remaining ( void  )

static

Definition at line 183 of file usb_blaster.c.

References BUF_LEN, ublast_info::bufidx, and info.

Referenced by ublast_queue_byte(), and ublast_queue_bytes().

ublast_buf_read()

static int ublast_buf_read ( uint8_t *  buf, unsigned int  size, uint32_t *  bytes_read  )

static

Definition at line 161 of file usb_blaster.c.

References ublast_info::drv, hexdump(), info, LOG_DEBUG_IO, ublast_lowlevel::read, and size.

Referenced by ublast_read_bitbang_tdos(), and ublast_read_byteshifted_tdos().

ublast_buf_write()

static int ublast_buf_write ( uint8_t *  buf, int  size, uint32_t *  bytes_written  )

static

Definition at line 172 of file usb_blaster.c.

References ublast_info::drv, hexdump(), info, LOG_DEBUG_IO, size, and ublast_lowlevel::write.

Referenced by ublast_flush_buffer(), ublast_initial_wipeout(), and ublast_quit().

ublast_build_out()

static uint8_t ublast_build_out ( enum scan_type  type )

static

ublast_build_out - build bitbang mode output byte

Parameters

type	says if reading back TDO is required

Returns the compute bitbang mode byte

Definition at line 289 of file usb_blaster.c.

References info, LED, NCE, NCS, ublast_info::pin6, ublast_info::pin8, READ, SCAN_IN, SCAN_IO, ublast_info::tdi, TDI, ublast_info::tms, TMS, type, and ublast_compute_pin().

Referenced by COMMAND_HANDLER(), ublast_clock_tdi(), ublast_clock_tdi_flip_tms(), ublast_clock_tms(), ublast_idle_clock(), ublast_initial_wipeout(), and ublast_reset().

ublast_clock_tdi()

static void ublast_clock_tdi ( int  tdi, enum scan_type  type  )

static

ublast_clock_tdi - Output a TDI with bitbang mode

Parameters

tdi	the TDI bit to be shifted out
type	scan type (ie. does a readback of TDO is required)

Output a TDI bit and assert clock to push it into the JTAG device :

• writing out TCK=0, TMS=<old_state>=0, TDI=<tdi>
• writing out TCK=1, TMS=<new_state>, TDI=<tdi> which triggers the JTAG device acquiring the data.

If a TDO is to be read back, the required read is requested (bitbang mode), and the USB Blaster will send back a byte with bit0 representing the TDO.

Definition at line 363 of file usb_blaster.c.

References info, LOG_DEBUG_IO, SCAN_OUT, TCK, ublast_info::tdi, type, ublast_build_out(), and ublast_queue_byte().

Referenced by ublast_queue_tdi().

ublast_clock_tdi_flip_tms()

static void ublast_clock_tdi_flip_tms ( int  tdi, enum scan_type  type  )

static

ublast_clock_tdi_flip_tms - Output a TDI with bitbang mode, change JTAG state

Parameters

tdi	the TDI bit to be shifted out
type	scan type (ie. does a readback of TDO is required)

This function is the same as ublast_clock_tdi(), but it changes also the TMS while output the TDI. This should be the last TDI output of a TDI sequence, which will change state from :

• IRSHIFT -> IREXIT1
• or DRSHIFT -> DREXIT1

Definition at line 388 of file usb_blaster.c.

References info, LOG_DEBUG_IO, SCAN_OUT, TCK, ublast_info::tdi, ublast_info::tms, type, ublast_build_out(), and ublast_queue_byte().

Referenced by ublast_queue_tdi().

ublast_clock_tms()

static void ublast_clock_tms ( int  tms )

static

ublast_clock_tms - clock a TMS transition

Parameters

tms	the TMS to be sent

Triggers a TMS transition (ie. one JTAG TAP state move).

Definition at line 325 of file usb_blaster.c.

References info, LOG_DEBUG_IO, SCAN_OUT, TCK, ublast_info::tdi, ublast_info::tms, ublast_build_out(), and ublast_queue_byte().

Referenced by ublast_path_move(), and ublast_tms_seq().

ublast_compute_pin()

static bool ublast_compute_pin ( enum gpio_steer  steer )

static

ublast_compute_pin - compute if gpio should be asserted

Parameters

steer

control (ie. TRST driven, SRST driven, of fixed)

Returns pin value (1 means driven high, 0 mean driven low)

Definition at line 267 of file usb_blaster.c.

References FIXED_0, FIXED_1, info, SRST, ublast_info::srst_asserted, TRST, and ublast_info::trst_asserted.

Referenced by ublast_build_out().

ublast_execute_queue()

static int ublast_execute_queue ( struct jtag_command *  cmd_queue )

static

Definition at line 766 of file usb_blaster.c.

References cmd, ERROR_FAIL, ERROR_OK, JTAG_PATHMOVE, JTAG_RESET, JTAG_RUNTEST, JTAG_SCAN, JTAG_SLEEP, JTAG_STABLECLOCKS, JTAG_TLR_RESET, JTAG_TMS, LOG_ERROR, ublast_flush_buffer(), ublast_initial_wipeout(), ublast_path_move(), ublast_reset(), ublast_runtest(), ublast_scan(), ublast_stableclocks(), ublast_state_move(), ublast_tms(), and ublast_usleep().

ublast_flush_buffer()

static void ublast_flush_buffer ( void  )

static

Definition at line 188 of file usb_blaster.c.

References ublast_info::buf, ublast_info::bufidx, ERROR_OK, info, and ublast_buf_write().

Referenced by COMMAND_HANDLER(), ublast_execute_queue(), ublast_queue_byte(), ublast_queue_bytes(), ublast_read_bitbang_tdos(), ublast_read_byteshifted_tdos(), and ublast_reset().

ublast_idle_clock()

static void ublast_idle_clock ( void  )

static

ublast_idle_clock - put back TCK to low level

See ublast_queue_tdi() comment for the usage of this function.

Definition at line 342 of file usb_blaster.c.

References LOG_DEBUG_IO, SCAN_OUT, ublast_build_out(), and ublast_queue_byte().

Referenced by ublast_path_move(), ublast_queue_tdi(), and ublast_tms_seq().

ublast_init()

static int ublast_init ( void  )

static

ublast_init - Initialize the Altera device

Initialize the device :

• open the USB device
• pretend it's initialized while actual init is delayed until first jtag command

Returns ERROR_OK if USB device found, error if not.

Definition at line 826 of file usb_blaster.c.

References ublast_info::drv, drvs_map::drv_register, ERROR_JTAG_DEVICE_ERROR, ublast_lowlevel::firmware_path, ublast_info::firmware_path, ublast_lowlevel::flags, ublast_info::flags, info, LOG_ERROR, LOG_INFO, lowlevel_drivers_map, ublast_info::lowlevel_name, drvs_map::name, name, ublast_lowlevel::open, TAP_RESET, tap_set_state, ublast_lowlevel::ublast_pid, ublast_info::ublast_pid, ublast_lowlevel::ublast_pid_uninit, ublast_info::ublast_pid_uninit, ublast_lowlevel::ublast_vid, ublast_info::ublast_vid, ublast_lowlevel::ublast_vid_uninit, and ublast_info::ublast_vid_uninit.

ublast_initial_wipeout()

static void ublast_initial_wipeout ( void  )

static

Definition at line 742 of file usb_blaster.c.

References ublast_info::buf, BUF_LEN, info, SCAN_OUT, TAP_RESET, tap_set_state, TCK, ublast_buf_write(), ublast_build_out(), and ublast_tms_seq().

Referenced by ublast_execute_queue().

ublast_path_move()

static void ublast_path_move ( struct pathmove_command *  cmd )

static

ublast_path_move - write a TMS sequence transition to JTAG

Parameters

cmd	path transition

Write a series of TMS transitions, where each transition consists in :

• writing out TCK=0, TMS=<new_state>, TDI=<???>
• writing out TCK=1, TMS=<new_state>, TDI=<???> which triggers the transition The function ensures that at the end of the sequence, the clock (TCK) is put low.

Definition at line 475 of file usb_blaster.c.

References cmd, LOG_DEBUG_IO, tap_get_state(), tap_set_state, tap_state_transition(), ublast_clock_tms(), and ublast_idle_clock().

Referenced by ublast_execute_queue().

ublast_queue_byte()

static void ublast_queue_byte ( uint8_t  abyte )

static

ublast_queue_byte - queue one 'bitbang mode' byte for USB Blaster

Parameters

abyte

the byte to queue

Queues one byte in 'bitbang mode' to the USB Blaster. The byte is not actually sent, but stored in a buffer. The write is performed once the buffer is filled, or if an explicit ublast_flush_buffer() is called.

Definition at line 251 of file usb_blaster.c.

References ublast_info::buf, ublast_info::bufidx, info, LOG_DEBUG_IO, nb_buf_remaining(), and ublast_flush_buffer().

Referenced by COMMAND_HANDLER(), ublast_clock_tdi(), ublast_clock_tdi_flip_tms(), ublast_clock_tms(), ublast_idle_clock(), ublast_queue_tdi(), and ublast_reset().

ublast_queue_bytes()

static void ublast_queue_bytes ( uint8_t *  bytes, int  nb_bytes  )

static

ublast_queue_bytes - queue bytes for the USB Blaster

Parameters

bytes	byte array
nb_bytes	number of bytes

Queues bytes to be sent to the USB Blaster. The bytes are not actually sent, but stored in a buffer. The write is performed once the buffer is filled, or if an explicit ublast_flush_buffer() is called.

Definition at line 415 of file usb_blaster.c.

References ublast_info::buf, BUF_LEN, ublast_info::bufidx, info, LOG_DEBUG_IO, LOG_ERROR, nb_buf_remaining(), and ublast_flush_buffer().

Referenced by ublast_queue_tdi().

ublast_queue_tdi()

static void ublast_queue_tdi ( uint8_t *  bits, int  nb_bits, enum scan_type  scan  )

static

ublast_queue_tdi - short description

Parameters

bits	bits to be queued on TDI (or NULL if 0 are to be queued)
nb_bits	number of bits
scan	scan type (ie. if TDO read back is required or not)

Outputs a series of TDI bits on TDI. As a side effect, the last TDI bit is sent along a TMS=1, and triggers a JTAG TAP state shift if input bits were non NULL.

In order to not saturate the USB Blaster queues, this method reads back TDO if the scan type requests it, and stores them back in bits.

As a side note, the state of TCK when entering this function must be low. This is because byteshift mode outputs TDI on rising TCK and reads TDO on falling TCK if and only if TCK is low before queuing byteshift mode bytes. If TCK was high, the USB blaster will queue TDI on falling edge, and read TDO on rising edge !!!

Definition at line 599 of file usb_blaster.c.

References bits, BUF_LEN, ublast_info::bufidx, CMD_COPY_TDO_BUFFER, COPY_TDO_BUFFER, DIV_ROUND_UP, ublast_info::flags, info, MAX_PACKET_SIZE, MIN, READ, scan, SCAN_IN, SCAN_IO, SHMODE, ublast_clock_tdi(), ublast_clock_tdi_flip_tms(), ublast_idle_clock(), ublast_queue_byte(), ublast_queue_bytes(), ublast_read_bitbang_tdos(), and ublast_read_byteshifted_tdos().

Referenced by ublast_runtest(), ublast_scan(), and ublast_stableclocks().

ublast_quit()

static int ublast_quit ( void  )

static

ublast_quit - Release the Altera device

Releases the device :

• put the device pins in 'high impedance' mode
• close the USB device

Returns always ERROR_OK

Definition at line 887 of file usb_blaster.c.

References ublast_lowlevel::close, ublast_info::drv, info, and ublast_buf_write().

ublast_read_bitbang_tdos()

static int ublast_read_bitbang_tdos ( uint8_t *  buf, int  nb_bits  )

static

ublast_read_bitbang_tdos - read TDO of bitbang writes

Parameters

buf	the buffer to store the bits
nb_bits	the number of bits

Reads back from USB Blaster TDO bits, triggered by a 'bitbang write', ie. one bit per received byte from USB interface, and store them in buffer, where :

• first bit is stored in byte0, bit0 (LSB)
• second bit is stored in byte0, bit 1 ...
• eight bit is stored in byte0, bit 7
• ninth bit is stored in byte1, bit 0
• etc ...

Returns ERROR_OK if OK, ERROR_xxx if a read error occurred

Definition at line 556 of file usb_blaster.c.

References ERROR_OK, LOG_DEBUG_IO, READ_TDO, ublast_buf_read(), and ublast_flush_buffer().

Referenced by ublast_queue_tdi().

ublast_read_byteshifted_tdos()

static int ublast_read_byteshifted_tdos ( uint8_t *  buf, int  nb_bytes  )

static

ublast_read_byteshifted_tdos - read TDO of byteshift writes

Parameters

buf	the buffer to store the bits
nb_bytes	the number of bytes

Reads back from USB Blaster TDO bits, triggered by a 'byteshift write', ie. eight bits per received byte from USB interface, and store them in buffer.

As the USB blaster stores the TDO bits in LSB (ie. first bit in (byte0, bit0), second bit in (byte0, bit1), ...), which is what we want to return, simply read bytes from USB interface and store them.

Returns ERROR_OK if OK, ERROR_xxx if a read error occurred

Definition at line 526 of file usb_blaster.c.

References ERROR_OK, LOG_DEBUG_IO, ublast_buf_read(), and ublast_flush_buffer().

Referenced by ublast_queue_tdi().

ublast_reset()

static void ublast_reset ( int  trst, int  srst  )

static

ublast_reset - reset the JTAG device is possible

Parameters

trst	1 if TRST is to be asserted
srst	1 if SRST is to be asserted

Definition at line 308 of file usb_blaster.c.

References info, SCAN_OUT, ublast_info::srst_asserted, ublast_info::trst_asserted, ublast_build_out(), ublast_flush_buffer(), and ublast_queue_byte().

Referenced by ublast_execute_queue().

ublast_runtest()

static void ublast_runtest ( unsigned int  num_cycles, tap_state_t  state  )

static

Definition at line 676 of file usb_blaster.c.

References LOG_DEBUG_IO, NULL, SCAN_OUT, state, TAP_IDLE, ublast_queue_tdi(), and ublast_state_move().

Referenced by ublast_execute_queue().

ublast_scan()

static int ublast_scan ( struct scan_command *  cmd )

static

ublast_scan - launches a DR-scan or IR-scan

Parameters

cmd	the command to launch

Launch a JTAG IR-scan or DR-scan

Returns ERROR_OK if OK, ERROR_xxx if a read/write error occurred.

Definition at line 699 of file usb_blaster.c.

References cmd, DIV_ROUND_UP, ERROR_OK, hexdump(), jtag_build_buffer(), jtag_read_buffer(), jtag_scan_type(), LOG_DEBUG_IO, NULL, TAP_DRSHIFT, TAP_IRSHIFT, type, ublast_queue_tdi(), and ublast_state_move().

Referenced by ublast_execute_queue().

ublast_stableclocks()

static void ublast_stableclocks ( unsigned int  num_cycles )

static

Definition at line 685 of file usb_blaster.c.

References LOG_DEBUG_IO, NULL, SCAN_OUT, and ublast_queue_tdi().

Referenced by ublast_execute_queue().

ublast_state_move()

static void ublast_state_move ( tap_state_t  state, int  skip  )

static

ublast_state_move - move JTAG state to the target state

Parameters

state	the target state
skip	number of bits to skip at the beginning of the path

Input the correct TMS sequence to the JTAG TAP so that we end up in the target state. This assumes the current state (tap_get_state()) is correct.

Definition at line 497 of file usb_blaster.c.

References LOG_DEBUG_IO, state, tap_get_state(), tap_get_tms_path(), tap_get_tms_path_len(), tap_set_state, tap_state_name(), and ublast_tms_seq().

Referenced by ublast_execute_queue(), ublast_runtest(), and ublast_scan().

ublast_tms()

static void ublast_tms ( struct tms_command *  cmd )

static

ublast_tms - write a tms command

Parameters

cmd	tms command

Definition at line 459 of file usb_blaster.c.

References cmd, LOG_DEBUG_IO, and ublast_tms_seq().

Referenced by ublast_execute_queue().

ublast_tms_seq()

static void ublast_tms_seq ( const uint8_t *  bits, int  nb_bits, int  skip  )

static

ublast_tms_seq - write a TMS sequence transition to JTAG

Parameters

bits	TMS bits to be written (bit0, bit1 .. bitN)
nb_bits	number of TMS bits (between 1 and 8)
skip	number of TMS bits to skip at the beginning of the series

Write a series of TMS transitions, where each transition consists in :

• writing out TCK=0, TMS=<new_state>, TDI=<???>
• writing out TCK=1, TMS=<new_state>, TDI=<???> which triggers the transition The function ensures that at the end of the sequence, the clock (TCK) is put low.

Definition at line 445 of file usb_blaster.c.

References bits, LOG_DEBUG_IO, ublast_clock_tms(), and ublast_idle_clock().

Referenced by ublast_initial_wipeout(), ublast_state_move(), and ublast_tms().

ublast_usleep()

static void ublast_usleep ( int  us )

static

Definition at line 736 of file usb_blaster.c.

References jtag_sleep(), and LOG_DEBUG_IO.

Referenced by ublast_execute_queue().

Variable Documentation

info

struct ublast_info info

static

Initial value:

= {
    .ublast_vid = 0x09fb, 
    .ublast_pid = 0x6001, 
    .lowlevel_name = NULL,
    .srst_asserted = false,
    .trst_asserted = false,
    .pin6 = FIXED_1,
    .pin8 = FIXED_1,
}

Definition at line 1 of file usb_blaster.c.

Referenced by COMMAND_HANDLER(), nb_buf_remaining(), ublast_buf_read(), ublast_buf_write(), ublast_build_out(), ublast_clock_tdi(), ublast_clock_tdi_flip_tms(), ublast_clock_tms(), ublast_compute_pin(), ublast_flush_buffer(), ublast_init(), ublast_initial_wipeout(), ublast_queue_byte(), ublast_queue_bytes(), ublast_queue_tdi(), ublast_quit(), and ublast_reset().

lowlevel_drivers_map

struct drvs_map lowlevel_drivers_map[]

static

Initial value:

= {
 
 
 
 
 
 
    { NULL, NULL },
}

Definition at line 1 of file usb_blaster.c.

Referenced by ublast_init().

ublast_command_handlers

const struct command_registration ublast_command_handlers[]

static

Initial value:

= {
    {
        .name = "usb_blaster",
        .mode = COMMAND_ANY,
        .help = "perform usb_blaster management",
        .chain = ublast_subcommand_handlers,
        .usage = "",
    },
    COMMAND_REGISTRATION_DONE
}

Definition at line 997 of file usb_blaster.c.

ublast_subcommand_handlers

const struct command_registration ublast_subcommand_handlers[]

static

Definition at line 997 of file usb_blaster.c.

usb_blaster_adapter_driver

struct adapter_driver usb_blaster_adapter_driver

Initial value:

= {
    .name = "usb_blaster",
    .transports = jtag_only,
    .commands = ublast_command_handlers,
 
    .init = ublast_init,
    .quit = ublast_quit,
 
    .jtag_ops = &usb_blaster_interface,
}

Definition at line 997 of file usb_blaster.c.

usb_blaster_interface

struct jtag_interface usb_blaster_interface

static

Initial value:

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

Definition at line 997 of file usb_blaster.c.