Support the Amontec Chameleon POD with JTAG Accelerator support. More...

Include dependency graph for amt_jtagaccel.c:

Macros
#define	AMT_AR(val) do { val = inb(amt_jtagaccel_port + 3); } while (0)

#define	AMT_AW(val) do { outb(val, amt_jtagaccel_port + 3); } while (0)

#define	AMT_DR(val) do { val = inb(amt_jtagaccel_port + 4); } while (0)

#define	AMT_DW(val) do { outb(val, amt_jtagaccel_port + 4); } while (0)

Functions
static void	amt_jtagaccel_end_state (tap_state_t state)

static int	amt_jtagaccel_execute_queue (struct jtag_command *cmd_queue)

static int	amt_jtagaccel_init (void)

static int	amt_jtagaccel_quit (void)

static void	amt_jtagaccel_reset (int trst, int srst)

static void	amt_jtagaccel_runtest (unsigned int num_cycles)

static void	amt_jtagaccel_scan (bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size)

static int	amt_jtagaccel_speed (int speed)

static void	amt_jtagaccel_state_move (void)

static void	amt_wait_scan_busy (void)

	COMMAND_HANDLER (amt_jtagaccel_handle_parport_port_command)

	COMMAND_HANDLER (amt_jtagaccel_handle_rtck_command)

Variables
struct adapter_driver	amt_jtagaccel_adapter_driver

static struct jtag_interface	amt_jtagaccel_interface

static uint16_t	amt_jtagaccel_port

static const uint8_t	amt_jtagaccel_tap_move [6][6][2]

static const struct command_registration	amtjtagaccel_command_handlers []

static uint8_t	aw_control_baudrate = 0x20

static uint8_t	aw_control_fsm = 0x10

static uint8_t	aw_control_rst

static int	rtck_enabled

Detailed Description

Support the Amontec Chameleon POD with JTAG Accelerator support.

This is a parallel port JTAG adapter with a CPLD between the parallel port and the JTAG connection. VHDL code running in the CPLD significantly accelerates JTAG operations compared to the bitbanging "Wiggler" style of most parallel port adapters.

Definition in file amt_jtagaccel.c.

Macro Definition Documentation

◆ AMT_AR

#define AMT_AR ( val ) do { val = inb(amt_jtagaccel_port + 3); } while (0)

Definition at line 101 of file amt_jtagaccel.c.

◆ AMT_AW

#define AMT_AW ( val ) do { outb(val, amt_jtagaccel_port + 3); } while (0)

Definition at line 100 of file amt_jtagaccel.c.

◆ AMT_DR

#define AMT_DR ( val ) do { val = inb(amt_jtagaccel_port + 4); } while (0)

Definition at line 103 of file amt_jtagaccel.c.

◆ AMT_DW

#define AMT_DW ( val ) do { outb(val, amt_jtagaccel_port + 4); } while (0)

Definition at line 102 of file amt_jtagaccel.c.

Function Documentation

◆ amt_jtagaccel_end_state()

static void amt_jtagaccel_end_state ( tap_state_t state )

static

Definition at line 149 of file amt_jtagaccel.c.

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

Referenced by amt_jtagaccel_execute_queue(), amt_jtagaccel_runtest(), and amt_jtagaccel_scan().

◆ amt_jtagaccel_execute_queue()

static int amt_jtagaccel_execute_queue ( struct jtag_command * cmd_queue )

static

Definition at line 320 of file amt_jtagaccel.c.

References amt_jtagaccel_end_state(), amt_jtagaccel_reset(), amt_jtagaccel_runtest(), amt_jtagaccel_scan(), amt_jtagaccel_state_move(), buffer, cmd, ERROR_JTAG_QUEUE_FAILED, ERROR_OK, jtag_build_buffer(), jtag_read_buffer(), JTAG_RESET, JTAG_RUNTEST, JTAG_SCAN, jtag_scan_type(), JTAG_SLEEP, jtag_sleep(), JTAG_TLR_RESET, LOG_DEBUG_IO, LOG_ERROR, TAP_RESET, tap_set_state, and type.

◆ amt_jtagaccel_init()

static int amt_jtagaccel_init ( void )

static

Definition at line 411 of file amt_jtagaccel.c.

References AMT_AR, AMT_AW, amt_jtagaccel_port, amt_jtagaccel_reset(), aw_control_fsm, aw_control_rst, buffer, ERROR_JTAG_INIT_FAILED, ERROR_OK, jtag_get_reset_config(), jtag_reset_config, LOG_DEBUG, LOG_ERROR, LOG_WARNING, RESET_SRST_PUSH_PULL, RESET_TRST_OPEN_DRAIN, and rtck_enabled.

◆ amt_jtagaccel_quit()

static int amt_jtagaccel_quit ( void )

static

Definition at line 510 of file amt_jtagaccel.c.

References ERROR_OK.

◆ amt_jtagaccel_reset()

static void amt_jtagaccel_reset	(	int	trst,
		int	srst
	)

static

Definition at line 125 of file amt_jtagaccel.c.

References AMT_AW, and aw_control_rst.

Referenced by amt_jtagaccel_execute_queue(), and amt_jtagaccel_init().

◆ amt_jtagaccel_runtest()

static void amt_jtagaccel_runtest ( unsigned int num_cycles )

static

Definition at line 206 of file amt_jtagaccel.c.

References AMT_AW, amt_jtagaccel_end_state(), amt_jtagaccel_state_move(), tap_get_end_state(), tap_get_state(), and TAP_IDLE.

Referenced by amt_jtagaccel_execute_queue().

◆ amt_jtagaccel_scan()

static void amt_jtagaccel_scan	(	bool	ir_scan,
		enum scan_type	type,
		uint8_t *	buffer,
		int	scan_size
	)

static

Definition at line 236 of file amt_jtagaccel.c.

References adapter_get_speed(), AMT_AW, AMT_DR, AMT_DW, amt_jtagaccel_end_state(), amt_jtagaccel_state_move(), amt_jtagaccel_tap_move, amt_wait_scan_busy(), buf_get_u32(), buf_set_u32(), buffer, ERROR_OK, rtck_enabled, SCAN_IN, SCAN_IO, TAP_DRSHIFT, tap_get_end_state(), tap_get_state(), TAP_IRSHIFT, tap_move_ndx(), tap_set_state, and type.

Referenced by amt_jtagaccel_execute_queue().

◆ amt_jtagaccel_speed()

static int amt_jtagaccel_speed ( int speed )

static

Definition at line 140 of file amt_jtagaccel.c.

References AMT_AW, aw_control_baudrate, and ERROR_OK.

◆ amt_jtagaccel_state_move()

static void amt_jtagaccel_state_move ( void )

static

Definition at line 177 of file amt_jtagaccel.c.

References adapter_get_speed(), AMT_AW, amt_jtagaccel_tap_move, amt_wait_scan_busy(), ERROR_OK, rtck_enabled, tap_get_end_state(), tap_get_state(), tap_move_ndx(), and tap_set_state.

Referenced by amt_jtagaccel_execute_queue(), amt_jtagaccel_runtest(), and amt_jtagaccel_scan().

◆ amt_wait_scan_busy()

static void amt_wait_scan_busy ( void )

static

Definition at line 159 of file amt_jtagaccel.c.

References AMT_AR, LOG_ERROR, and rtck_enabled.

Referenced by amt_jtagaccel_scan(), and amt_jtagaccel_state_move().

◆ COMMAND_HANDLER() [1/2]

COMMAND_HANDLER ( amt_jtagaccel_handle_parport_port_command )

Definition at line 516 of file amt_jtagaccel.c.

References amt_jtagaccel_port, CMD, CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, command_print(), ERROR_FAIL, ERROR_OK, and LOG_ERROR.

◆ COMMAND_HANDLER() [2/2]

COMMAND_HANDLER ( amt_jtagaccel_handle_rtck_command )

Definition at line 535 of file amt_jtagaccel.c.

Variable Documentation

◆ amt_jtagaccel_adapter_driver

struct adapter_driver amt_jtagaccel_adapter_driver

Initial value:

= {
    .name = "amt_jtagaccel",
    .transports = jtag_only,
    .commands = amtjtagaccel_command_handlers,
 
    .init = amt_jtagaccel_init,
    .quit = amt_jtagaccel_quit,
    .speed = amt_jtagaccel_speed,
 
    .jtag_ops = &amt_jtagaccel_interface,
}

Definition at line 535 of file amt_jtagaccel.c.

◆ amt_jtagaccel_interface

struct jtag_interface amt_jtagaccel_interface

static

Initial value:

= {
    .execute_queue = amt_jtagaccel_execute_queue,
}

Definition at line 535 of file amt_jtagaccel.c.

◆ amt_jtagaccel_port

uint16_t amt_jtagaccel_port

static

Definition at line 41 of file amt_jtagaccel.c.

Referenced by amt_jtagaccel_init(), and COMMAND_HANDLER().

◆ amt_jtagaccel_tap_move

const uint8_t amt_jtagaccel_tap_move[6][6][2]

static

Initial value:

= {
    
    { {0x1f, 0x00}, {0x0f, 0x00}, {0x05, 0x00}, {0x0a, 0x00}, {0x06, 0x00}, {0x96, 0x00} }, 
    { {0x1f, 0x00}, {0x00, 0x00}, {0x04, 0x00}, {0x05, 0x00}, {0x06, 0x00}, {0x0b, 0x00} }, 
    { {0x1f, 0x00}, {0x0d, 0x00}, {0x00, 0x00}, {0x01, 0x00}, {0x8f, 0x09}, {0x8f, 0x01} }, 
    { {0x1f, 0x00}, {0x0c, 0x00}, {0x08, 0x00}, {0x00, 0x00}, {0x8f, 0x09}, {0x8f, 0x01} }, 
    { {0x1f, 0x00}, {0x0d, 0x00}, {0x07, 0x00}, {0x97, 0x00}, {0x00, 0x00}, {0x01, 0x00} }, 
    { {0x1f, 0x00}, {0x0c, 0x00}, {0x07, 0x00}, {0x97, 0x00}, {0x08, 0x00}, {0x00, 0x00} }, 
}

Definition at line 115 of file amt_jtagaccel.c.

Referenced by amt_jtagaccel_scan(), and amt_jtagaccel_state_move().

◆ amtjtagaccel_command_handlers

const struct command_registration amtjtagaccel_command_handlers[]

static

Initial value:

= {
    {
        .name = "parport_port",
        .handler = &amt_jtagaccel_handle_parport_port_command,
        .mode = COMMAND_CONFIG,
        .help = "configure or display the parallel port to use",
        .usage = "[port_num]",
    },
    {
        
        .name = "rtck",
        .handler = &amt_jtagaccel_handle_rtck_command,
        .mode = COMMAND_CONFIG,
        .help = "configure or display RTCK support",
        .usage = "[enable|disable]",
    },
    COMMAND_REGISTRATION_DONE
}

Definition at line 535 of file amt_jtagaccel.c.

◆ aw_control_baudrate

uint8_t aw_control_baudrate = 0x20

static

Definition at line 47 of file amt_jtagaccel.c.

Referenced by amt_jtagaccel_speed().

◆ aw_control_fsm

uint8_t aw_control_fsm = 0x10

static

Definition at line 46 of file amt_jtagaccel.c.

Referenced by amt_jtagaccel_init().

◆ aw_control_rst

uint8_t aw_control_rst

static

Definition at line 45 of file amt_jtagaccel.c.

Referenced by amt_jtagaccel_init(), and amt_jtagaccel_reset().

◆ rtck_enabled

int rtck_enabled

static

Definition at line 49 of file amt_jtagaccel.c.

Referenced by amt_jtagaccel_init(), amt_jtagaccel_scan(), amt_jtagaccel_state_move(), and amt_wait_scan_busy().

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ AMT_AR

◆ AMT_AW

◆ AMT_DR

◆ AMT_DW

Function Documentation

◆ amt_jtagaccel_end_state()

◆ amt_jtagaccel_execute_queue()

◆ amt_jtagaccel_init()

◆ amt_jtagaccel_quit()

◆ amt_jtagaccel_reset()

◆ amt_jtagaccel_runtest()

◆ amt_jtagaccel_scan()

◆ amt_jtagaccel_speed()

◆ amt_jtagaccel_state_move()

◆ amt_wait_scan_busy()

◆ COMMAND_HANDLER() [1/2]

◆ COMMAND_HANDLER() [2/2]

Variable Documentation

◆ amt_jtagaccel_adapter_driver

◆ amt_jtagaccel_interface

◆ amt_jtagaccel_port

◆ amt_jtagaccel_tap_move

◆ amtjtagaccel_command_handlers

◆ aw_control_baudrate

◆ aw_control_fsm

◆ aw_control_rst

◆ rtck_enabled