1904 lines
50 KiB
C
1904 lines
50 KiB
C
/***************************************************************************
|
|
* Copyright (C) 2009 by Simon Qian <SimonQian@SimonQian.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. *
|
|
***************************************************************************/
|
|
|
|
/* Versaloon is a programming tool for multiple MCUs.
|
|
* OpenOCD and MSP430 supports are distributed under GPLv2.
|
|
* You can find it at http://www.SimonQian.com/en/Versaloon.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "interface.h"
|
|
#include "commands.h"
|
|
#include "usb_common.h"
|
|
|
|
//#define _VSLLINK_IN_DEBUG_MODE_
|
|
|
|
#define VSLLINK_MODE_NORMAL 0
|
|
#define VSLLINK_MODE_DMA 1
|
|
|
|
static uint16_t vsllink_usb_vid;
|
|
static uint16_t vsllink_usb_pid;
|
|
static uint8_t vsllink_usb_bulkout;
|
|
static uint8_t vsllink_usb_bulkin;
|
|
static uint8_t vsllink_usb_interface;
|
|
static uint8_t vsllink_mode = VSLLINK_MODE_NORMAL;
|
|
static int VSLLINK_USB_TIMEOUT = 10000;
|
|
|
|
static int VSLLINK_BufferSize = 1024;
|
|
|
|
/* Global USB buffers */
|
|
static int vsllink_usb_out_buffer_idx;
|
|
static int vsllink_usb_in_want_length;
|
|
static uint8_t* vsllink_usb_in_buffer = NULL;
|
|
static uint8_t* vsllink_usb_out_buffer = NULL;
|
|
|
|
/* Constants for VSLLink command */
|
|
#define VSLLINK_CMD_CONN 0x80
|
|
#define VSLLINK_CMD_DISCONN 0x81
|
|
#define VSLLINK_CMD_SET_SPEED 0x82
|
|
#define VSLLINK_CMD_SET_PORT 0x90
|
|
#define VSLLINK_CMD_GET_PORT 0x91
|
|
#define VSLLINK_CMD_SET_PORTDIR 0x92
|
|
#define VSLLINK_CMD_HW_JTAGSEQCMD 0xA0
|
|
#define VSLLINK_CMD_HW_JTAGHLCMD 0xA1
|
|
#define VSLLINK_CMD_HW_SWDCMD 0xA2
|
|
#define VSLLINK_CMD_HW_JTAGRAWCMD 0xA3
|
|
|
|
#define VSLLINK_CMDJTAGSEQ_TMSBYTE 0x00
|
|
#define VSLLINK_CMDJTAGSEQ_TMSCLOCK 0x40
|
|
#define VSLLINK_CMDJTAGSEQ_SCAN 0x80
|
|
|
|
#define VSLLINK_CMDJTAGSEQ_CMDMSK 0xC0
|
|
#define VSLLINK_CMDJTAGSEQ_LENMSK 0x3F
|
|
|
|
#define JTAG_PINMSK_SRST (1 << 0)
|
|
#define JTAG_PINMSK_TRST (1 << 1)
|
|
#define JTAG_PINMSK_USR1 (1 << 2)
|
|
#define JTAG_PINMSK_USR2 (1 << 3)
|
|
#define JTAG_PINMSK_TCK (1 << 4)
|
|
#define JTAG_PINMSK_TMS (1 << 5)
|
|
#define JTAG_PINMSK_TDI (1 << 6)
|
|
#define JTAG_PINMSK_TDO (1 << 7)
|
|
|
|
|
|
#define VSLLINK_TAP_MOVE(from, to) VSLLINK_tap_move[tap_move_ndx(from)][tap_move_ndx(to)]
|
|
|
|
/* VSLLINK_tap_move[i][j]: tap movement command to go from state i to state j
|
|
* 0: Test-Logic-Reset
|
|
* 1: Run-Test/Idle
|
|
* 2: Shift-DR
|
|
* 3: Pause-DR
|
|
* 4: Shift-IR
|
|
* 5: Pause-IR
|
|
*
|
|
* SD->SD and SI->SI have to be caught in interface specific code
|
|
*/
|
|
static uint8_t VSLLINK_tap_move[6][6] =
|
|
{
|
|
/* TLR RTI SD PD SI PI */
|
|
{0xff, 0x7f, 0x2f, 0x0a, 0x37, 0x16}, /* TLR */
|
|
{0xff, 0x00, 0x45, 0x05, 0x4b, 0x0b}, /* RTI */
|
|
{0xff, 0x61, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
|
|
{0xfe, 0x60, 0x40, 0x5c, 0x3c, 0x5e}, /* PD */
|
|
{0xff, 0x61, 0x07, 0x17, 0x00, 0x01}, /* SI */
|
|
{0xfe, 0x60, 0x38, 0x5c, 0x40, 0x5e} /* PI */
|
|
};
|
|
|
|
struct insert_insignificant_operation {
|
|
unsigned char insert_value;
|
|
unsigned char insert_position;
|
|
};
|
|
|
|
static struct insert_insignificant_operation VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[6][6] =
|
|
{
|
|
/* stuff offset */
|
|
{/* TLR */
|
|
{1, 0,}, /* TLR */
|
|
{1, 0,}, /* RTI */
|
|
{1, 0,}, /* SD */
|
|
{1, 0,}, /* PD */
|
|
{1, 0,}, /* SI */
|
|
{1, 0,}}, /* PI */
|
|
{/* RTI */
|
|
{1, 0,}, /* TLR */
|
|
{0, 0,}, /* RTI */
|
|
{0, 4,}, /* SD */
|
|
{0, 7,}, /* PD */
|
|
{0, 5,}, /* SI */
|
|
{0, 7,}}, /* PI */
|
|
{/* SD */
|
|
{0, 0,}, /* TLR */
|
|
{0, 0,}, /* RTI */
|
|
{0, 0,}, /* SD */
|
|
{0, 0,}, /* PD */
|
|
{0, 0,}, /* SI */
|
|
{0, 0,}}, /* PI */
|
|
{/* PD */
|
|
{0, 0,}, /* TLR */
|
|
{0, 0,}, /* RTI */
|
|
{0, 0,}, /* SD */
|
|
{0, 0,}, /* PD */
|
|
{0, 0,}, /* SI */
|
|
{0, 0,}}, /* PI */
|
|
{/* SI */
|
|
{0, 0,}, /* TLR */
|
|
{0, 0,}, /* RTI */
|
|
{0, 0,}, /* SD */
|
|
{0, 0,}, /* PD */
|
|
{0, 0,}, /* SI */
|
|
{0, 0,}}, /* PI */
|
|
{/* PI */
|
|
{0, 0,}, /* TLR */
|
|
{0, 0,}, /* RTI */
|
|
{0, 0,}, /* SD */
|
|
{0, 0,}, /* PD */
|
|
{0, 0,}, /* SI */
|
|
{0, 0,}}, /* PI */
|
|
};
|
|
|
|
static uint8_t VSLLINK_BIT_MSK[8] =
|
|
{
|
|
0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f
|
|
};
|
|
|
|
struct pending_scan_result {
|
|
int offset;
|
|
int length; /* Number of bits to read */
|
|
struct scan_command *command; /* Corresponding scan command */
|
|
uint8_t *buffer;
|
|
};
|
|
|
|
#define MAX_PENDING_SCAN_RESULTS 256
|
|
|
|
static int pending_scan_results_length;
|
|
static struct pending_scan_result pending_scan_results_buffer[MAX_PENDING_SCAN_RESULTS];
|
|
|
|
/* Queue command functions */
|
|
static void vsllink_end_state(tap_state_t state);
|
|
static void vsllink_state_move_dma(void);
|
|
static void vsllink_state_move_normal(void);
|
|
static void (*vsllink_state_move)(void);
|
|
static void vsllink_path_move_dma(int num_states, tap_state_t *path);
|
|
static void vsllink_path_move_normal(int num_states, tap_state_t *path);
|
|
static void (*vsllink_path_move)(int num_states, tap_state_t *path);
|
|
static void vsllink_runtest(int num_cycles);
|
|
static void vsllink_stableclocks_dma(int num_cycles, int tms);
|
|
static void vsllink_stableclocks_normal(int num_cycles, int tms);
|
|
static void (*vsllink_stableclocks)(int num_cycles, int tms);
|
|
static void vsllink_scan_dma(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, struct scan_command *command);
|
|
static void vsllink_scan_normal(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, struct scan_command *command);
|
|
static void (*vsllink_scan)(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, struct scan_command *command);
|
|
static void vsllink_reset(int trst, int srst);
|
|
static void vsllink_simple_command(uint8_t command);
|
|
static int vsllink_connect(void);
|
|
static int vsllink_disconnect(void);
|
|
|
|
/* VSLLink tap buffer functions */
|
|
static void vsllink_tap_append_step(int tms, int tdi);
|
|
static void vsllink_tap_init_dma(void);
|
|
static void vsllink_tap_init_normal(void);
|
|
static void (*vsllink_tap_init)(void);
|
|
static int vsllink_tap_execute_dma(void);
|
|
static int vsllink_tap_execute_normal(void);
|
|
static int (*vsllink_tap_execute)(void);
|
|
static void vsllink_tap_ensure_space_dma(int scans, int length);
|
|
static void vsllink_tap_ensure_space_normal(int scans, int length);
|
|
static void (*vsllink_tap_ensure_space)(int scans, int length);
|
|
static void vsllink_tap_append_scan_dma(int length, uint8_t *buffer, struct scan_command *command);
|
|
static void vsllink_tap_append_scan_normal(int length, uint8_t *buffer, struct scan_command *command, int offset);
|
|
|
|
/* VSLLink lowlevel functions */
|
|
struct vsllink {
|
|
struct usb_dev_handle* usb_handle;
|
|
};
|
|
|
|
static struct vsllink *vsllink_usb_open(void);
|
|
static void vsllink_usb_close(struct vsllink *vsllink);
|
|
static int vsllink_usb_message(struct vsllink *vsllink, int out_length, int in_length);
|
|
static int vsllink_usb_write(struct vsllink *vsllink, int out_length);
|
|
static int vsllink_usb_read(struct vsllink *vsllink);
|
|
|
|
#if defined _DEBUG_USB_COMMS_ || defined _DEBUG_JTAG_IO_
|
|
static void vsllink_debug_buffer(uint8_t *buffer, int length);
|
|
#endif
|
|
|
|
static int vsllink_tms_data_len = 0;
|
|
static uint8_t* vsllink_tms_cmd_pos;
|
|
|
|
static int tap_length = 0;
|
|
static int tap_buffer_size = 0;
|
|
static uint8_t *tms_buffer = NULL;
|
|
static uint8_t *tdi_buffer = NULL;
|
|
static uint8_t *tdo_buffer = NULL;
|
|
static int last_tms;
|
|
|
|
static struct vsllink* vsllink_handle = NULL;
|
|
|
|
static void reset_command_pointer(void)
|
|
{
|
|
if (vsllink_mode == VSLLINK_MODE_NORMAL)
|
|
{
|
|
vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD;
|
|
vsllink_usb_out_buffer_idx = 3;
|
|
}
|
|
else
|
|
{
|
|
tap_length = 0;
|
|
}
|
|
}
|
|
|
|
static int vsllink_execute_queue(void)
|
|
{
|
|
struct jtag_command *cmd = jtag_command_queue;
|
|
int scan_size;
|
|
enum scan_type type;
|
|
uint8_t *buffer;
|
|
|
|
DEBUG_JTAG_IO("--------------------------------- vsllink -------------------------------------");
|
|
|
|
reset_command_pointer();
|
|
while (cmd != NULL)
|
|
{
|
|
switch (cmd->type)
|
|
{
|
|
case JTAG_RUNTEST:
|
|
DEBUG_JTAG_IO("runtest %i cycles, end in %s", cmd->cmd.runtest->num_cycles, \
|
|
tap_state_name(cmd->cmd.runtest->end_state));
|
|
|
|
vsllink_end_state(cmd->cmd.runtest->end_state);
|
|
vsllink_runtest(cmd->cmd.runtest->num_cycles);
|
|
break;
|
|
|
|
case JTAG_STATEMOVE:
|
|
DEBUG_JTAG_IO("statemove end in %s", tap_state_name(cmd->cmd.statemove->end_state));
|
|
|
|
vsllink_end_state(cmd->cmd.statemove->end_state);
|
|
vsllink_state_move();
|
|
break;
|
|
|
|
case JTAG_PATHMOVE:
|
|
DEBUG_JTAG_IO("pathmove: %i states, end in %s", \
|
|
cmd->cmd.pathmove->num_states, \
|
|
tap_state_name(cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]));
|
|
|
|
vsllink_path_move(cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path);
|
|
break;
|
|
|
|
case JTAG_SCAN:
|
|
vsllink_end_state(cmd->cmd.scan->end_state);
|
|
|
|
scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
|
|
if (cmd->cmd.scan->ir_scan)
|
|
{
|
|
DEBUG_JTAG_IO("JTAG Scan write IR(%d bits), end in %s:", scan_size, tap_state_name(cmd->cmd.scan->end_state));
|
|
}
|
|
else
|
|
{
|
|
DEBUG_JTAG_IO("JTAG Scan write DR(%d bits), end in %s:", scan_size, tap_state_name(cmd->cmd.scan->end_state));
|
|
}
|
|
|
|
#ifdef _DEBUG_JTAG_IO_
|
|
vsllink_debug_buffer(buffer, (scan_size + 7) >> 3);
|
|
#endif
|
|
|
|
type = jtag_scan_type(cmd->cmd.scan);
|
|
|
|
vsllink_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size, cmd->cmd.scan);
|
|
break;
|
|
|
|
case JTAG_RESET:
|
|
DEBUG_JTAG_IO("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
|
|
|
|
vsllink_tap_execute();
|
|
|
|
if (cmd->cmd.reset->trst == 1)
|
|
{
|
|
tap_set_state(TAP_RESET);
|
|
}
|
|
vsllink_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
|
|
break;
|
|
|
|
case JTAG_SLEEP:
|
|
DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
|
|
vsllink_tap_execute();
|
|
jtag_sleep(cmd->cmd.sleep->us);
|
|
break;
|
|
|
|
case JTAG_STABLECLOCKS:
|
|
DEBUG_JTAG_IO("add %d clocks", cmd->cmd.stableclocks->num_cycles);
|
|
switch (tap_get_state())
|
|
{
|
|
case TAP_RESET:
|
|
// tms should be '1' to stay in TAP_RESET mode
|
|
scan_size = 1;
|
|
break;
|
|
case TAP_DRSHIFT:
|
|
case TAP_IDLE:
|
|
case TAP_DRPAUSE:
|
|
case TAP_IRSHIFT:
|
|
case TAP_IRPAUSE:
|
|
// in other mode, tms should be '0'
|
|
scan_size = 0;
|
|
break; /* above stable states are OK */
|
|
default:
|
|
LOG_ERROR("jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
|
|
tap_state_name(tap_get_state()));
|
|
exit(-1);
|
|
}
|
|
vsllink_stableclocks(cmd->cmd.stableclocks->num_cycles, scan_size);
|
|
break;
|
|
|
|
default:
|
|
LOG_ERROR("BUG: unknown JTAG command type encountered: %d", cmd->type);
|
|
exit(-1);
|
|
}
|
|
cmd = cmd->next;
|
|
}
|
|
|
|
return vsllink_tap_execute();
|
|
}
|
|
|
|
static int vsllink_speed(int speed)
|
|
{
|
|
int result;
|
|
|
|
vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_SPEED;
|
|
vsllink_usb_out_buffer[1] = (speed >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[2] = (speed >> 8) & 0xFF;
|
|
|
|
result = vsllink_usb_write(vsllink_handle, 3);
|
|
|
|
if (result == 3)
|
|
{
|
|
return ERROR_OK;
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("VSLLink setting speed failed (%d)", result);
|
|
return ERROR_JTAG_DEVICE_ERROR;
|
|
}
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
static int vsllink_khz(int khz, int *jtag_speed)
|
|
{
|
|
*jtag_speed = khz;
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
static int vsllink_speed_div(int jtag_speed, int *khz)
|
|
{
|
|
*khz = jtag_speed;
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
static int vsllink_init(void)
|
|
{
|
|
int check_cnt, to_tmp;
|
|
int result;
|
|
char version_str[100];
|
|
|
|
vsllink_usb_in_buffer = malloc(VSLLINK_BufferSize);
|
|
vsllink_usb_out_buffer = malloc(VSLLINK_BufferSize);
|
|
if ((vsllink_usb_in_buffer == NULL) || (vsllink_usb_out_buffer == NULL))
|
|
{
|
|
LOG_ERROR("Not enough memory");
|
|
exit(-1);
|
|
}
|
|
|
|
vsllink_handle = vsllink_usb_open();
|
|
|
|
if (vsllink_handle == 0)
|
|
{
|
|
LOG_ERROR("Can't find USB JTAG Interface! Please check connection and permissions.");
|
|
return ERROR_JTAG_INIT_FAILED;
|
|
}
|
|
LOG_DEBUG("vsllink found on %04X:%04X", vsllink_usb_vid, vsllink_usb_pid);
|
|
|
|
to_tmp = VSLLINK_USB_TIMEOUT;
|
|
VSLLINK_USB_TIMEOUT = 100;
|
|
check_cnt = 0;
|
|
while (check_cnt < 5)
|
|
{
|
|
vsllink_simple_command(0x00);
|
|
result = vsllink_usb_read(vsllink_handle);
|
|
|
|
if (result > 2)
|
|
{
|
|
vsllink_usb_in_buffer[result] = 0;
|
|
VSLLINK_BufferSize = vsllink_usb_in_buffer[0] + (vsllink_usb_in_buffer[1] << 8);
|
|
strncpy(version_str, (char *)vsllink_usb_in_buffer + 2, sizeof(version_str));
|
|
LOG_INFO("%s", version_str);
|
|
|
|
// free the pre-alloc memroy
|
|
free(vsllink_usb_in_buffer);
|
|
free(vsllink_usb_out_buffer);
|
|
vsllink_usb_in_buffer = NULL;
|
|
vsllink_usb_out_buffer = NULL;
|
|
|
|
// alloc new memory
|
|
vsllink_usb_in_buffer = malloc(VSLLINK_BufferSize);
|
|
vsllink_usb_out_buffer = malloc(VSLLINK_BufferSize);
|
|
if ((vsllink_usb_in_buffer == NULL) || (vsllink_usb_out_buffer == NULL))
|
|
{
|
|
LOG_ERROR("Not enough memory");
|
|
exit(-1);
|
|
}
|
|
else
|
|
{
|
|
LOG_INFO("buffer size for USB is %d bytes", VSLLINK_BufferSize);
|
|
}
|
|
// alloc memory for dma mode
|
|
if (vsllink_mode == VSLLINK_MODE_DMA)
|
|
{
|
|
tap_buffer_size = (VSLLINK_BufferSize - 3) / 2;
|
|
tms_buffer = (uint8_t*)malloc(tap_buffer_size);
|
|
tdi_buffer = (uint8_t*)malloc(tap_buffer_size);
|
|
tdo_buffer = (uint8_t*)malloc(tap_buffer_size);
|
|
if ((tms_buffer == NULL) || (tdi_buffer == NULL) || (tdo_buffer == NULL))
|
|
{
|
|
LOG_ERROR("Not enough memory");
|
|
exit(-1);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
vsllink_simple_command(VSLLINK_CMD_DISCONN);
|
|
check_cnt++;
|
|
}
|
|
if (check_cnt == 3)
|
|
{
|
|
// It's dangerout to proced
|
|
LOG_ERROR("VSLLink initial failed");
|
|
exit(-1);
|
|
}
|
|
VSLLINK_USB_TIMEOUT = to_tmp;
|
|
|
|
// connect to vsllink
|
|
vsllink_connect();
|
|
// initialize function pointers
|
|
if (vsllink_mode == VSLLINK_MODE_NORMAL)
|
|
{
|
|
// normal mode
|
|
vsllink_state_move = vsllink_state_move_normal;
|
|
vsllink_path_move = vsllink_path_move_normal;
|
|
vsllink_stableclocks = vsllink_stableclocks_normal;
|
|
vsllink_scan = vsllink_scan_normal;
|
|
|
|
vsllink_tap_init = vsllink_tap_init_normal;
|
|
vsllink_tap_execute = vsllink_tap_execute_normal;
|
|
vsllink_tap_ensure_space = vsllink_tap_ensure_space_normal;
|
|
|
|
LOG_INFO("vsllink run in NORMAL mode");
|
|
}
|
|
else
|
|
{
|
|
// dma mode
|
|
vsllink_state_move = vsllink_state_move_dma;
|
|
vsllink_path_move = vsllink_path_move_dma;
|
|
vsllink_stableclocks = vsllink_stableclocks_dma;
|
|
vsllink_scan = vsllink_scan_dma;
|
|
|
|
vsllink_tap_init = vsllink_tap_init_dma;
|
|
vsllink_tap_execute = vsllink_tap_execute_dma;
|
|
vsllink_tap_ensure_space = vsllink_tap_ensure_space_dma;
|
|
|
|
LOG_INFO("vsllink run in DMA mode");
|
|
}
|
|
|
|
// Set SRST and TRST to output, Set USR1 and USR2 to input
|
|
vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_PORTDIR;
|
|
vsllink_usb_out_buffer[1] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST | JTAG_PINMSK_USR1 | JTAG_PINMSK_USR2;
|
|
vsllink_usb_out_buffer[2] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST;
|
|
if (vsllink_usb_write(vsllink_handle, 3) != 3)
|
|
{
|
|
LOG_ERROR("VSLLink USB send data error");
|
|
exit(-1);
|
|
}
|
|
|
|
vsllink_reset(0, 0);
|
|
|
|
LOG_INFO("VSLLink JTAG Interface ready");
|
|
|
|
vsllink_tap_init();
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
static int vsllink_quit(void)
|
|
{
|
|
if ((vsllink_usb_in_buffer != NULL) && (vsllink_usb_out_buffer != NULL))
|
|
{
|
|
// Set all pins to input
|
|
vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_PORTDIR;
|
|
vsllink_usb_out_buffer[1] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST | JTAG_PINMSK_USR1 | JTAG_PINMSK_USR2;
|
|
vsllink_usb_out_buffer[2] = 0;
|
|
if (vsllink_usb_write(vsllink_handle, 3) != 3)
|
|
{
|
|
LOG_ERROR("VSLLink USB send data error");
|
|
exit(-1);
|
|
}
|
|
|
|
// disconnect
|
|
vsllink_disconnect();
|
|
vsllink_usb_close(vsllink_handle);
|
|
vsllink_handle = NULL;
|
|
}
|
|
|
|
if (vsllink_usb_in_buffer != NULL)
|
|
{
|
|
free(vsllink_usb_in_buffer);
|
|
vsllink_usb_in_buffer = NULL;
|
|
}
|
|
if (vsllink_usb_out_buffer != NULL)
|
|
{
|
|
free(vsllink_usb_out_buffer);
|
|
vsllink_usb_out_buffer = NULL;
|
|
}
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
/***************************************************************************/
|
|
/* Queue command implementations */
|
|
static int vsllink_disconnect(void)
|
|
{
|
|
vsllink_simple_command(VSLLINK_CMD_DISCONN);
|
|
return ERROR_OK;
|
|
}
|
|
|
|
static int vsllink_connect(void)
|
|
{
|
|
char vsllink_str[100];
|
|
|
|
vsllink_usb_out_buffer[0] = VSLLINK_CMD_CONN;
|
|
vsllink_usb_out_buffer[1] = vsllink_mode;
|
|
vsllink_usb_message(vsllink_handle, 2, 0);
|
|
if (vsllink_usb_read(vsllink_handle) > 2)
|
|
{
|
|
strncpy(vsllink_str, (char *)vsllink_usb_in_buffer + 2, sizeof(vsllink_str));
|
|
LOG_INFO("%s", vsllink_str);
|
|
}
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
// when vsllink_tms_data_len > 0, vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] is the byte that need to be appended.
|
|
// length of VSLLINK_CMDJTAGSEQ_TMSBYTE has been set, no need to set it here.
|
|
static void vsllink_append_tms(void)
|
|
{
|
|
uint8_t tms_scan = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
|
|
uint16_t tms2;
|
|
struct insert_insignificant_operation *insert = \
|
|
&VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(tap_get_end_state())];
|
|
|
|
if (((tap_get_state() != TAP_RESET) && (tap_get_state() != TAP_IDLE) && (tap_get_state() != TAP_DRPAUSE) && (tap_get_state() != TAP_IRPAUSE)) || \
|
|
(vsllink_tms_data_len <= 0) || (vsllink_tms_data_len >= 8) || \
|
|
(vsllink_tms_cmd_pos == NULL))
|
|
{
|
|
LOG_ERROR("There MUST be some bugs in the driver");
|
|
exit(-1);
|
|
}
|
|
|
|
tms2 = (tms_scan & VSLLINK_BIT_MSK[insert->insert_position]) << \
|
|
vsllink_tms_data_len;
|
|
if (insert->insert_value == 1)
|
|
{
|
|
tms2 |= VSLLINK_BIT_MSK[8 - vsllink_tms_data_len] << \
|
|
(vsllink_tms_data_len + insert->insert_position);
|
|
}
|
|
tms2 |= (tms_scan >> insert->insert_position) << \
|
|
(8 + insert->insert_position);
|
|
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (tms2 >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms2 >> 8) & 0xff;
|
|
|
|
vsllink_tms_data_len = 0;
|
|
vsllink_tms_cmd_pos = NULL;
|
|
}
|
|
|
|
static void vsllink_end_state(tap_state_t state)
|
|
{
|
|
if (tap_is_state_stable(state))
|
|
{
|
|
tap_set_end_state(state);
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("BUG: %i is not a valid end state", state);
|
|
exit(-1);
|
|
}
|
|
}
|
|
|
|
/* Goes to the end state. */
|
|
static void vsllink_state_move_normal(void)
|
|
{
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
vsllink_append_tms();
|
|
}
|
|
else
|
|
{
|
|
vsllink_tap_ensure_space(0, 2);
|
|
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
|
|
}
|
|
|
|
tap_set_state(tap_get_end_state());
|
|
}
|
|
static void vsllink_state_move_dma(void)
|
|
{
|
|
int i, insert_length = (tap_length % 8) ? (8 - (tap_length % 8)) : 0;
|
|
struct insert_insignificant_operation *insert = \
|
|
&VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(tap_get_end_state())];
|
|
uint8_t tms_scan = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
|
|
|
|
if (tap_get_state() == TAP_RESET)
|
|
{
|
|
vsllink_tap_ensure_space(0, 8);
|
|
|
|
for (i = 0; i < 8; i++)
|
|
{
|
|
vsllink_tap_append_step(1, 0);
|
|
}
|
|
}
|
|
|
|
if (insert_length > 0)
|
|
{
|
|
vsllink_tap_ensure_space(0, 16);
|
|
|
|
for (i = 0; i < insert->insert_position; i++)
|
|
{
|
|
vsllink_tap_append_step((tms_scan >> i) & 1, 0);
|
|
}
|
|
for (i = 0; i < insert_length; i++)
|
|
{
|
|
vsllink_tap_append_step(insert->insert_value, 0);
|
|
}
|
|
for (i = insert->insert_position; i < 8; i++)
|
|
{
|
|
vsllink_tap_append_step((tms_scan >> i) & 1, 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
vsllink_tap_ensure_space(0, 8);
|
|
|
|
for (i = 0; i < 8; i++)
|
|
{
|
|
vsllink_tap_append_step((tms_scan >> i) & 1, 0);
|
|
}
|
|
}
|
|
|
|
tap_set_state(tap_get_end_state());
|
|
}
|
|
|
|
// write tms from current vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx]
|
|
static void vsllink_add_path(int start, int num, tap_state_t *path)
|
|
{
|
|
int i;
|
|
|
|
for (i = start; i < (start + num); i++)
|
|
{
|
|
if ((i & 7) == 0)
|
|
{
|
|
if (i > 0)
|
|
{
|
|
vsllink_usb_out_buffer_idx++;
|
|
}
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0;
|
|
}
|
|
|
|
if (path[i - start] == tap_state_transition(tap_get_state(), true))
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] |= 1 << (i & 7);
|
|
}
|
|
else if (path[i - start] == tap_state_transition(tap_get_state(), false))
|
|
{
|
|
// nothing to do
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path[i]));
|
|
exit(-1);
|
|
}
|
|
tap_set_state(path[i - start]);
|
|
}
|
|
if ((i > 0) && ((i & 7) == 0))
|
|
{
|
|
vsllink_usb_out_buffer_idx++;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0;
|
|
}
|
|
|
|
tap_set_end_state(tap_get_state());
|
|
}
|
|
|
|
static void vsllink_path_move_normal(int num_states, tap_state_t *path)
|
|
{
|
|
int i, tms_len, tms_cmd_pos, path_idx = 0;
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
// there are vsllink_tms_data_len more tms bits to be shifted
|
|
// so there are vsllink_tms_data_len + num_states tms bits in all
|
|
tms_len = vsllink_tms_data_len + num_states;
|
|
if (tms_len <= 16)
|
|
{
|
|
// merge into last tms shift
|
|
if (tms_len < 8)
|
|
{
|
|
// just append tms data to the last tms byte
|
|
vsllink_add_path(vsllink_tms_data_len, num_states, path);
|
|
}
|
|
else if (tms_len == 8)
|
|
{
|
|
// end last tms shift command
|
|
(*vsllink_tms_cmd_pos)--;
|
|
vsllink_add_path(vsllink_tms_data_len, num_states, path);
|
|
}
|
|
else if (tms_len < 16)
|
|
{
|
|
if ((*vsllink_tms_cmd_pos & VSLLINK_CMDJTAGSEQ_LENMSK) < VSLLINK_CMDJTAGSEQ_LENMSK)
|
|
{
|
|
// every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
|
|
// there is enought tms length in the current tms shift command
|
|
(*vsllink_tms_cmd_pos)++;
|
|
vsllink_add_path(vsllink_tms_data_len, num_states, path);
|
|
}
|
|
else
|
|
{
|
|
// every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
|
|
// not enough tms length in the current tms shift command
|
|
// so a new command should be added
|
|
// first decrease byte length of last tms shift command
|
|
(*vsllink_tms_cmd_pos)--;
|
|
// append tms data to the last tms byte
|
|
vsllink_add_path(vsllink_tms_data_len, 8 - vsllink_tms_data_len, path);
|
|
path += 8 - vsllink_tms_data_len;
|
|
// add new command(3 bytes)
|
|
vsllink_tap_ensure_space(0, 3);
|
|
vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
|
|
vsllink_add_path(0, num_states - (8 - vsllink_tms_data_len), path);
|
|
}
|
|
}
|
|
else if (tms_len == 16)
|
|
{
|
|
// end last tms shift command
|
|
vsllink_add_path(vsllink_tms_data_len, num_states, path);
|
|
}
|
|
|
|
vsllink_tms_data_len = (vsllink_tms_data_len + num_states) & 7;
|
|
if (vsllink_tms_data_len == 0)
|
|
{
|
|
vsllink_tms_cmd_pos = NULL;
|
|
}
|
|
num_states = 0;
|
|
}
|
|
else
|
|
{
|
|
vsllink_add_path(vsllink_tms_data_len, 16 - vsllink_tms_data_len, path);
|
|
|
|
path += 16 - vsllink_tms_data_len;
|
|
num_states -= 16 - vsllink_tms_data_len;
|
|
vsllink_tms_data_len = 0;
|
|
vsllink_tms_cmd_pos = NULL;
|
|
}
|
|
}
|
|
|
|
if (num_states > 0)
|
|
{
|
|
// Normal operation, don't need to append tms data
|
|
vsllink_tms_data_len = num_states & 7;
|
|
|
|
while (num_states > 0)
|
|
{
|
|
if (num_states > ((VSLLINK_CMDJTAGSEQ_LENMSK + 1) * 8))
|
|
{
|
|
i = (VSLLINK_CMDJTAGSEQ_LENMSK + 1) * 8;
|
|
}
|
|
else
|
|
{
|
|
i = num_states;
|
|
}
|
|
tms_len = (i + 7) >> 3;
|
|
vsllink_tap_ensure_space(0, tms_len + 2);
|
|
tms_cmd_pos = vsllink_usb_out_buffer_idx;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | (tms_len - 1);
|
|
|
|
vsllink_add_path(0, i, path + path_idx);
|
|
|
|
path_idx += i;
|
|
num_states -= i;
|
|
}
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
if (tms_len < (VSLLINK_CMDJTAGSEQ_LENMSK + 1))
|
|
{
|
|
vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[tms_cmd_pos];
|
|
(*vsllink_tms_cmd_pos)++;
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_out_buffer[tms_cmd_pos]--;
|
|
|
|
tms_len = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
|
|
vsllink_tap_ensure_space(0, 3);
|
|
vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = tms_len;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
static void vsllink_path_move_dma(int num_states, tap_state_t *path)
|
|
{
|
|
int i, j = 0;
|
|
|
|
if (tap_length & 7)
|
|
{
|
|
if ((8 - (tap_length & 7)) < num_states)
|
|
{
|
|
j = 8 - (tap_length & 7);
|
|
}
|
|
else
|
|
{
|
|
j = num_states;
|
|
}
|
|
for (i = 0; i < j; i++)
|
|
{
|
|
if (path[i] == tap_state_transition(tap_get_state(), false))
|
|
{
|
|
vsllink_tap_append_step(0, 0);
|
|
}
|
|
else if (path[i] == tap_state_transition(tap_get_state(), true))
|
|
{
|
|
vsllink_tap_append_step(1, 0);
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path[i]));
|
|
exit(-1);
|
|
}
|
|
tap_set_state(path[i]);
|
|
}
|
|
num_states -= j;
|
|
}
|
|
|
|
if (num_states > 0)
|
|
{
|
|
vsllink_tap_ensure_space(0, num_states);
|
|
|
|
for (i = 0; i < num_states; i++)
|
|
{
|
|
if (path[j + i] == tap_state_transition(tap_get_state(), false))
|
|
{
|
|
vsllink_tap_append_step(0, 0);
|
|
}
|
|
else if (path[j + i] == tap_state_transition(tap_get_state(), true))
|
|
{
|
|
vsllink_tap_append_step(1, 0);
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path[i]));
|
|
exit(-1);
|
|
}
|
|
tap_set_state(path[j + i]);
|
|
}
|
|
}
|
|
|
|
tap_set_end_state(tap_get_state());
|
|
}
|
|
|
|
static void vsllink_stableclocks_normal(int num_cycles, int tms)
|
|
{
|
|
int tms_len;
|
|
uint16_t tms_append_byte;
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
// there are vsllink_tms_data_len more tms bits to be shifted
|
|
// so there are vsllink_tms_data_len + num_cycles tms bits in all
|
|
tms_len = vsllink_tms_data_len + num_cycles;
|
|
if (tms > 0)
|
|
{
|
|
// append '1' for tms
|
|
tms_append_byte = (uint16_t)((((1 << num_cycles) - 1) << vsllink_tms_data_len) & 0xFFFF);
|
|
}
|
|
else
|
|
{
|
|
// append '0' for tms
|
|
tms_append_byte = 0;
|
|
}
|
|
if (tms_len <= 16)
|
|
{
|
|
// merge into last tms shift
|
|
if (tms_len < 8)
|
|
{
|
|
// just add to vsllink_tms_data_len
|
|
// same result if tun through
|
|
//vsllink_tms_data_len += num_cycles;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] |= (uint8_t)(tms_append_byte & 0xFF);
|
|
}
|
|
else if (tms_len == 8)
|
|
{
|
|
// end last tms shift command
|
|
// just reduce it, and append last tms byte
|
|
(*vsllink_tms_cmd_pos)--;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (uint8_t)(tms_append_byte & 0xFF);
|
|
}
|
|
else if (tms_len < 16)
|
|
{
|
|
if ((*vsllink_tms_cmd_pos & VSLLINK_CMDJTAGSEQ_LENMSK) < VSLLINK_CMDJTAGSEQ_LENMSK)
|
|
{
|
|
// every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
|
|
// there is enought tms length in the current tms shift command
|
|
// increase the tms byte length by 1 and set the last byte to 0
|
|
(*vsllink_tms_cmd_pos)++;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (uint8_t)(tms_append_byte & 0xFF);
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = (uint8_t)(tms_append_byte >> 8);
|
|
}
|
|
else
|
|
{
|
|
// every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
|
|
// not enough tms length in the current tms shift command
|
|
// so a new command should be added
|
|
// first decrease byte length of last tms shift command
|
|
(*vsllink_tms_cmd_pos)--;
|
|
// append last tms byte and move the command pointer to the next empty position
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (uint8_t)(tms_append_byte & 0xFF);
|
|
// add new command(3 bytes)
|
|
vsllink_tap_ensure_space(0, 3);
|
|
vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = (uint8_t)(tms_append_byte >> 8);
|
|
}
|
|
}
|
|
else if (tms_len == 16)
|
|
{
|
|
// end last tms shift command
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (uint8_t)(tms_append_byte & 0xFF);
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (uint8_t)(tms_append_byte >> 8);
|
|
}
|
|
|
|
vsllink_tms_data_len = tms_len & 7;
|
|
if (vsllink_tms_data_len == 0)
|
|
{
|
|
vsllink_tms_cmd_pos = NULL;
|
|
}
|
|
num_cycles = 0;
|
|
}
|
|
else
|
|
{
|
|
// more shifts will be needed
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (uint8_t)(tms_append_byte & 0xFF);
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (uint8_t)(tms_append_byte >> 8);
|
|
|
|
num_cycles -= 16 - vsllink_tms_data_len;
|
|
vsllink_tms_data_len = 0;
|
|
vsllink_tms_cmd_pos = NULL;
|
|
}
|
|
}
|
|
// from here vsllink_tms_data_len == 0 or num_cycles == 0
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
// num_cycles == 0
|
|
// no need to shift
|
|
if (num_cycles > 0)
|
|
{
|
|
LOG_ERROR("There MUST be some bugs in the driver");
|
|
exit(-1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// get number of bytes left to be sent
|
|
tms_len = num_cycles >> 3;
|
|
if (tms_len > 0)
|
|
{
|
|
vsllink_tap_ensure_space(1, 5);
|
|
// if tms_len > 0, vsllink_tms_data_len == 0
|
|
// so just add new command
|
|
// LSB of the command byte is the tms value when do the shifting
|
|
if (tms > 0)
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSCLOCK | 1;
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSCLOCK;
|
|
}
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 8) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 16) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 24) & 0xff;
|
|
|
|
vsllink_usb_in_want_length += 1;
|
|
pending_scan_results_buffer[pending_scan_results_length].buffer = NULL;
|
|
pending_scan_results_length++;
|
|
|
|
if (tms_len > 0xFFFF)
|
|
{
|
|
vsllink_tap_execute();
|
|
}
|
|
}
|
|
|
|
// post-process
|
|
vsllink_tms_data_len = num_cycles & 7;
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
vsllink_tap_ensure_space(0, 3);
|
|
vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
|
|
if (tms > 0)
|
|
{
|
|
// append '1' for tms
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = (1 << vsllink_tms_data_len) - 1;
|
|
}
|
|
else
|
|
{
|
|
// append '0' for tms
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0x00;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
static void vsllink_stableclocks_dma(int num_cycles, int tms)
|
|
{
|
|
int i, cur_cycles;
|
|
|
|
if (tap_length & 7)
|
|
{
|
|
if ((8 - (tap_length & 7)) < num_cycles)
|
|
{
|
|
cur_cycles = 8 - (tap_length & 7);
|
|
}
|
|
else
|
|
{
|
|
cur_cycles = num_cycles;
|
|
}
|
|
for (i = 0; i < cur_cycles; i++)
|
|
{
|
|
vsllink_tap_append_step(tms, 0);
|
|
}
|
|
num_cycles -= cur_cycles;
|
|
}
|
|
|
|
while (num_cycles > 0)
|
|
{
|
|
if (num_cycles > 8 * tap_buffer_size)
|
|
{
|
|
cur_cycles = 8 * tap_buffer_size;
|
|
}
|
|
else
|
|
{
|
|
cur_cycles = num_cycles;
|
|
}
|
|
|
|
vsllink_tap_ensure_space(0, cur_cycles);
|
|
|
|
for (i = 0; i < cur_cycles; i++)
|
|
{
|
|
vsllink_tap_append_step(tms, 0);
|
|
}
|
|
|
|
num_cycles -= cur_cycles;
|
|
}
|
|
}
|
|
|
|
static void vsllink_runtest(int num_cycles)
|
|
{
|
|
tap_state_t saved_end_state = tap_get_end_state();
|
|
|
|
if (tap_get_state() != TAP_IDLE)
|
|
{
|
|
// enter into IDLE state
|
|
vsllink_end_state(TAP_IDLE);
|
|
vsllink_state_move();
|
|
}
|
|
|
|
vsllink_stableclocks(num_cycles, 0);
|
|
|
|
// post-process
|
|
// set end_state
|
|
vsllink_end_state(saved_end_state);
|
|
tap_set_state(TAP_IDLE);
|
|
if (tap_get_end_state() != TAP_IDLE)
|
|
{
|
|
vsllink_state_move();
|
|
}
|
|
}
|
|
|
|
static void vsllink_scan_normal(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, struct scan_command *command)
|
|
{
|
|
tap_state_t saved_end_state;
|
|
uint8_t bits_left, tms_tmp, tdi_len;
|
|
int i;
|
|
|
|
if (0 == scan_size)
|
|
{
|
|
return;
|
|
}
|
|
|
|
tdi_len = ((scan_size + 7) >> 3);
|
|
if ((tdi_len + 7) > VSLLINK_BufferSize)
|
|
{
|
|
LOG_ERROR("Your implementation of VSLLink has not enough buffer");
|
|
exit(-1);
|
|
}
|
|
|
|
saved_end_state = tap_get_end_state();
|
|
|
|
/* Move to appropriate scan state */
|
|
vsllink_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
if (tap_get_state() == tap_get_end_state())
|
|
{
|
|
// already in IRSHIFT or DRSHIFT state
|
|
// merge tms data in the last tms shift command into next scan command
|
|
if (*vsllink_tms_cmd_pos < 1)
|
|
{
|
|
LOG_ERROR("There MUST be some bugs in the driver");
|
|
exit(-1);
|
|
}
|
|
else if (*vsllink_tms_cmd_pos < 2)
|
|
{
|
|
tms_tmp = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
|
|
vsllink_usb_out_buffer_idx--;
|
|
}
|
|
else
|
|
{
|
|
tms_tmp = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
|
|
*vsllink_tms_cmd_pos -= 2;
|
|
}
|
|
|
|
vsllink_tap_ensure_space(1, tdi_len + 7);
|
|
// VSLLINK_CMDJTAGSEQ_SCAN ored by 1 means that tms_before is valid
|
|
// which is merged from the last tms shift command
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN | 1;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1) >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1) >> 8) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = tms_tmp;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = buffer[0] << (8 - vsllink_tms_data_len);
|
|
|
|
for (i = 0; i < tdi_len; i++)
|
|
{
|
|
buffer[i] >>= 8 - vsllink_tms_data_len;
|
|
if (i != tdi_len)
|
|
{
|
|
buffer[i] += buffer[i + 1] << vsllink_tms_data_len;
|
|
}
|
|
}
|
|
|
|
vsllink_tap_append_scan_normal(scan_size - vsllink_tms_data_len, buffer, command, vsllink_tms_data_len);
|
|
scan_size -= 8 - vsllink_tms_data_len;
|
|
vsllink_tms_data_len = 0;
|
|
}
|
|
else
|
|
{
|
|
vsllink_state_move();
|
|
vsllink_tap_ensure_space(1, tdi_len + 5);
|
|
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tdi_len >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tdi_len >> 8) & 0xff;
|
|
|
|
vsllink_tap_append_scan_normal(scan_size, buffer, command, 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
vsllink_tap_ensure_space(1, tdi_len + 7);
|
|
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN | 1;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1) >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1)>> 8) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
|
|
|
|
vsllink_tap_append_scan_normal(scan_size, buffer, command, 8);
|
|
}
|
|
vsllink_end_state(saved_end_state);
|
|
|
|
bits_left = scan_size & 0x07;
|
|
tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE);
|
|
|
|
if (bits_left > 0)
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 1 << (bits_left - 1);
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 1 << 7;
|
|
}
|
|
|
|
if (tap_get_state() != tap_get_end_state())
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
|
|
}
|
|
|
|
tap_set_state(tap_get_end_state());
|
|
}
|
|
static void vsllink_scan_dma(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, struct scan_command *command)
|
|
{
|
|
tap_state_t saved_end_state;
|
|
|
|
saved_end_state = tap_get_end_state();
|
|
|
|
/* Move to appropriate scan state */
|
|
vsllink_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
|
|
|
|
vsllink_state_move();
|
|
vsllink_end_state(saved_end_state);
|
|
|
|
/* Scan */
|
|
vsllink_tap_append_scan_dma(scan_size, buffer, command);
|
|
|
|
tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE);
|
|
while (tap_length % 8 != 0)
|
|
{
|
|
// more 0s in Pause
|
|
vsllink_tap_append_step(0, 0);
|
|
}
|
|
|
|
if (tap_get_state() != tap_get_end_state())
|
|
{
|
|
vsllink_state_move();
|
|
}
|
|
}
|
|
|
|
static void vsllink_reset(int trst, int srst)
|
|
{
|
|
int result;
|
|
|
|
LOG_DEBUG("trst: %i, srst: %i", trst, srst);
|
|
|
|
/* Signals are active low */
|
|
vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_PORT;
|
|
vsllink_usb_out_buffer[1] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST;
|
|
vsllink_usb_out_buffer[2] = 0;
|
|
if (srst == 0)
|
|
{
|
|
vsllink_usb_out_buffer[2] |= JTAG_PINMSK_SRST;
|
|
}
|
|
if (trst == 0)
|
|
{
|
|
vsllink_usb_out_buffer[2] |= JTAG_PINMSK_TRST;
|
|
}
|
|
|
|
result = vsllink_usb_write(vsllink_handle, 3);
|
|
if (result != 3)
|
|
{
|
|
LOG_ERROR("VSLLink command VSLLINK_CMD_SET_PORT failed (%d)", result);
|
|
}
|
|
}
|
|
|
|
static void vsllink_simple_command(uint8_t command)
|
|
{
|
|
int result;
|
|
|
|
DEBUG_JTAG_IO("0x%02x", command);
|
|
|
|
vsllink_usb_out_buffer[0] = command;
|
|
result = vsllink_usb_write(vsllink_handle, 1);
|
|
|
|
if (result != 1)
|
|
{
|
|
LOG_ERROR("VSLLink command 0x%02x failed (%d)", command, result);
|
|
}
|
|
}
|
|
|
|
COMMAND_HANDLER(vsllink_handle_mode_command)
|
|
{
|
|
if (CMD_ARGC != 1) {
|
|
LOG_ERROR("parameter error, should be one parameter for VID");
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
if (!strcmp(CMD_ARGV[0], "normal"))
|
|
{
|
|
vsllink_mode = VSLLINK_MODE_NORMAL;
|
|
}
|
|
else if (!strcmp(CMD_ARGV[0], "dma"))
|
|
{
|
|
vsllink_mode = VSLLINK_MODE_DMA;
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("invalid vsllink_mode: %s", CMD_ARGV[0]);
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
COMMAND_HANDLER(vsllink_handle_usb_vid_command)
|
|
{
|
|
if (CMD_ARGC != 1)
|
|
{
|
|
LOG_ERROR("parameter error, should be one parameter for VID");
|
|
return ERROR_OK;
|
|
}
|
|
|
|
COMMAND_PARSE_NUMBER(u16, CMD_ARGV[0], vsllink_usb_vid);
|
|
return ERROR_OK;
|
|
}
|
|
|
|
COMMAND_HANDLER(vsllink_handle_usb_pid_command)
|
|
{
|
|
if (CMD_ARGC != 1)
|
|
{
|
|
LOG_ERROR("parameter error, should be one parameter for PID");
|
|
return ERROR_OK;
|
|
}
|
|
COMMAND_PARSE_NUMBER(u16, CMD_ARGV[0], vsllink_usb_pid);
|
|
return ERROR_OK;
|
|
}
|
|
|
|
COMMAND_HANDLER(vsllink_handle_usb_bulkin_command)
|
|
{
|
|
if (CMD_ARGC != 1)
|
|
{
|
|
LOG_ERROR("parameter error, should be one parameter for BULKIN endpoint");
|
|
return ERROR_OK;
|
|
}
|
|
|
|
COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0], vsllink_usb_bulkin);
|
|
|
|
vsllink_usb_bulkin |= 0x80;
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
COMMAND_HANDLER(vsllink_handle_usb_bulkout_command)
|
|
{
|
|
if (CMD_ARGC != 1)
|
|
{
|
|
LOG_ERROR("parameter error, should be one parameter for BULKOUT endpoint");
|
|
return ERROR_OK;
|
|
}
|
|
|
|
COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0], vsllink_usb_bulkout);
|
|
|
|
vsllink_usb_bulkout &= ~0x80;
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
COMMAND_HANDLER(vsllink_handle_usb_interface_command)
|
|
{
|
|
if (CMD_ARGC != 1)
|
|
{
|
|
LOG_ERROR("parameter error, should be one parameter for interface number");
|
|
return ERROR_OK;
|
|
}
|
|
|
|
COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0], vsllink_usb_interface);
|
|
return ERROR_OK;
|
|
}
|
|
|
|
/***************************************************************************/
|
|
/* VSLLink tap functions */
|
|
|
|
static void vsllink_tap_init_normal(void)
|
|
{
|
|
vsllink_usb_out_buffer_idx = 0;
|
|
vsllink_usb_in_want_length = 0;
|
|
pending_scan_results_length = 0;
|
|
}
|
|
static void vsllink_tap_init_dma(void)
|
|
{
|
|
tap_length = 0;
|
|
pending_scan_results_length = 0;
|
|
}
|
|
|
|
static void vsllink_tap_ensure_space_normal(int scans, int length)
|
|
{
|
|
int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
|
|
int available_bytes = VSLLINK_BufferSize - vsllink_usb_out_buffer_idx;
|
|
|
|
if (scans > available_scans || length > available_bytes)
|
|
{
|
|
vsllink_tap_execute();
|
|
}
|
|
}
|
|
static void vsllink_tap_ensure_space_dma(int scans, int length)
|
|
{
|
|
int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
|
|
int available_bytes = tap_buffer_size * 8 - tap_length;
|
|
|
|
if (scans > available_scans || length > available_bytes)
|
|
{
|
|
vsllink_tap_execute();
|
|
}
|
|
}
|
|
|
|
static void vsllink_tap_append_step(int tms, int tdi)
|
|
{
|
|
last_tms = tms;
|
|
int index = tap_length / 8;
|
|
|
|
if (index < tap_buffer_size)
|
|
{
|
|
int bit_index = tap_length % 8;
|
|
uint8_t bit = 1 << bit_index;
|
|
|
|
if (tms)
|
|
{
|
|
tms_buffer[index] |= bit;
|
|
}
|
|
else
|
|
{
|
|
tms_buffer[index] &= ~bit;
|
|
}
|
|
|
|
if (tdi)
|
|
{
|
|
tdi_buffer[index] |= bit;
|
|
}
|
|
else
|
|
{
|
|
tdi_buffer[index] &= ~bit;
|
|
}
|
|
|
|
tap_length++;
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("buffer overflow, tap_length=%d", tap_length);
|
|
}
|
|
}
|
|
|
|
static void vsllink_tap_append_scan_normal(int length, uint8_t *buffer, struct scan_command *command, int offset)
|
|
{
|
|
struct pending_scan_result *pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length];
|
|
int i;
|
|
|
|
if (offset > 0)
|
|
{
|
|
vsllink_usb_in_want_length += ((length + 7) >> 3) + 1;
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_in_want_length += (length + 7) >> 3;
|
|
}
|
|
pending_scan_result->length = length;
|
|
pending_scan_result->offset = offset;
|
|
pending_scan_result->command = command;
|
|
pending_scan_result->buffer = buffer;
|
|
|
|
for (i = 0; i < ((length + 7) >> 3); i++)
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = buffer[i];
|
|
}
|
|
|
|
pending_scan_results_length++;
|
|
}
|
|
static void vsllink_tap_append_scan_dma(int length, uint8_t *buffer, struct scan_command *command)
|
|
{
|
|
struct pending_scan_result *pending_scan_result;
|
|
int len_tmp, len_all, i;
|
|
|
|
len_all = 0;
|
|
while (len_all < length)
|
|
{
|
|
if ((length - len_all) > tap_buffer_size * 8)
|
|
{
|
|
len_tmp = tap_buffer_size * 8;
|
|
}
|
|
else
|
|
{
|
|
len_tmp = length - len_all;
|
|
}
|
|
|
|
vsllink_tap_ensure_space(1, (len_tmp + 7) & ~7);
|
|
|
|
pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length];
|
|
pending_scan_result->offset = tap_length;
|
|
pending_scan_result->length = len_tmp;
|
|
pending_scan_result->command = command;
|
|
pending_scan_result->buffer = buffer + len_all / 8;
|
|
|
|
for (i = 0; i < len_tmp; i++)
|
|
{
|
|
vsllink_tap_append_step(((len_all + i) < length-1 ? 0 : 1), (buffer[(len_all + i)/8] >> ((len_all + i)%8)) & 1);
|
|
}
|
|
|
|
pending_scan_results_length++;
|
|
len_all += len_tmp;
|
|
}
|
|
}
|
|
|
|
/* Pad and send a tap sequence to the device, and receive the answer.
|
|
* For the purpose of padding we assume that we are in reset or idle or pause state. */
|
|
static int vsllink_tap_execute_normal(void)
|
|
{
|
|
int i;
|
|
int result;
|
|
int first = 0;
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
if ((tap_get_state() != TAP_RESET) && (tap_get_state() != TAP_IDLE) && (tap_get_state() != TAP_IRPAUSE) && (tap_get_state() != TAP_DRPAUSE))
|
|
{
|
|
LOG_WARNING("%s is not in RESET or IDLE or PAUSR state", tap_state_name(tap_get_state()));
|
|
}
|
|
|
|
if (vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] & (1 << (vsllink_tms_data_len - 1)))
|
|
{
|
|
// last tms bit is '1'
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= 0xFF << vsllink_tms_data_len;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0xFF;
|
|
vsllink_tms_data_len = 0;
|
|
}
|
|
else
|
|
{
|
|
// last tms bit is '0'
|
|
vsllink_usb_out_buffer_idx++;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
|
|
vsllink_tms_data_len = 0;
|
|
}
|
|
}
|
|
|
|
if (vsllink_usb_out_buffer_idx > 3)
|
|
{
|
|
if (vsllink_usb_out_buffer[0] == VSLLINK_CMD_HW_JTAGSEQCMD)
|
|
{
|
|
vsllink_usb_out_buffer[1] = (vsllink_usb_out_buffer_idx >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[2] = (vsllink_usb_out_buffer_idx >> 8) & 0xff;
|
|
}
|
|
|
|
result = vsllink_usb_message(vsllink_handle, vsllink_usb_out_buffer_idx, vsllink_usb_in_want_length);
|
|
|
|
if (result == vsllink_usb_in_want_length)
|
|
{
|
|
for (i = 0; i < pending_scan_results_length; i++)
|
|
{
|
|
struct pending_scan_result *pending_scan_result = &pending_scan_results_buffer[i];
|
|
uint8_t *buffer = pending_scan_result->buffer;
|
|
int length = pending_scan_result->length;
|
|
int offset = pending_scan_result->offset;
|
|
struct scan_command *command = pending_scan_result->command;
|
|
|
|
if (buffer != NULL)
|
|
{
|
|
// IRSHIFT or DRSHIFT
|
|
buf_set_buf(vsllink_usb_in_buffer, first * 8 + offset, buffer, 0, length);
|
|
first += (length + offset + 7) >> 3;
|
|
|
|
DEBUG_JTAG_IO("JTAG scan read(%d bits):", length);
|
|
#ifdef _DEBUG_JTAG_IO_
|
|
vsllink_debug_buffer(buffer, (length + 7) >> 3);
|
|
#endif
|
|
|
|
if (jtag_read_buffer(buffer, command) != ERROR_OK)
|
|
{
|
|
vsllink_tap_init();
|
|
return ERROR_JTAG_QUEUE_FAILED;
|
|
}
|
|
|
|
free(pending_scan_result->buffer);
|
|
pending_scan_result->buffer = NULL;
|
|
}
|
|
else
|
|
{
|
|
first++;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result, vsllink_usb_in_want_length);
|
|
return ERROR_JTAG_QUEUE_FAILED;
|
|
}
|
|
|
|
vsllink_tap_init();
|
|
}
|
|
reset_command_pointer();
|
|
|
|
return ERROR_OK;
|
|
}
|
|
static int vsllink_tap_execute_dma(void)
|
|
{
|
|
int byte_length;
|
|
int i;
|
|
int result;
|
|
|
|
if (tap_length > 0)
|
|
{
|
|
/* Pad last byte so that tap_length is divisible by 8 */
|
|
while (tap_length % 8 != 0)
|
|
{
|
|
/* More of the last TMS value keeps us in the same state,
|
|
* analogous to free-running JTAG interfaces. */
|
|
vsllink_tap_append_step(last_tms, 0);
|
|
}
|
|
byte_length = tap_length / 8;
|
|
|
|
vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGRAWCMD;
|
|
vsllink_usb_out_buffer[1] = ((byte_length * 2 + 3) >> 0) & 0xff; // package size
|
|
vsllink_usb_out_buffer[2] = ((byte_length * 2 + 3) >> 8) & 0xff;
|
|
|
|
memcpy(&vsllink_usb_out_buffer[3], tdi_buffer, byte_length);
|
|
memcpy(&vsllink_usb_out_buffer[3 + byte_length], tms_buffer, byte_length);
|
|
|
|
result = vsllink_usb_message(vsllink_handle, 3 + 2 * byte_length, byte_length);
|
|
if (result == byte_length)
|
|
{
|
|
for (i = 0; i < pending_scan_results_length; i++)
|
|
{
|
|
struct pending_scan_result *pending_scan_result = &pending_scan_results_buffer[i];
|
|
uint8_t *buffer = pending_scan_result->buffer;
|
|
int length = pending_scan_result->length;
|
|
int first = pending_scan_result->offset;
|
|
|
|
struct scan_command *command = pending_scan_result->command;
|
|
buf_set_buf(vsllink_usb_in_buffer, first, buffer, 0, length);
|
|
|
|
DEBUG_JTAG_IO("JTAG scan read(%d bits, from %d bits):", length, first);
|
|
#ifdef _DEBUG_JTAG_IO_
|
|
vsllink_debug_buffer(buffer, (length + 7) >> 3);
|
|
#endif
|
|
|
|
if (jtag_read_buffer(buffer, command) != ERROR_OK)
|
|
{
|
|
vsllink_tap_init();
|
|
return ERROR_JTAG_QUEUE_FAILED;
|
|
}
|
|
|
|
if (pending_scan_result->buffer != NULL)
|
|
{
|
|
free(pending_scan_result->buffer);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result, byte_length);
|
|
return ERROR_JTAG_QUEUE_FAILED;
|
|
}
|
|
|
|
vsllink_tap_init();
|
|
}
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* VSLLink USB low-level functions */
|
|
|
|
static struct vsllink* vsllink_usb_open(void)
|
|
{
|
|
usb_init();
|
|
|
|
const uint16_t vids[] = { vsllink_usb_vid, 0 };
|
|
const uint16_t pids[] = { vsllink_usb_pid, 0 };
|
|
struct usb_dev_handle *dev;
|
|
if (jtag_usb_open(vids, pids, &dev) != ERROR_OK)
|
|
return NULL;
|
|
|
|
/* usb_set_configuration required under win32 */
|
|
struct usb_device *udev = usb_device(dev);
|
|
int ret = usb_set_configuration(dev, udev->config[0].bConfigurationValue);
|
|
if (ret != 0)
|
|
{
|
|
LOG_ERROR("fail to set configuration to %d (error %d)."
|
|
"Not enough permissions for the device?",
|
|
udev->config[0].bConfigurationValue, ret);
|
|
return NULL;
|
|
}
|
|
ret = usb_claim_interface(dev, vsllink_usb_interface);
|
|
if (ret != 0)
|
|
{
|
|
LOG_ERROR("fail to claim interface %d, %d returned",
|
|
vsllink_usb_interface, ret);
|
|
return NULL;
|
|
}
|
|
#if 0
|
|
/*
|
|
* This makes problems under Mac OS X. And is not needed
|
|
* under Windows. Hopefully this will not break a linux build
|
|
*/
|
|
usb_set_altinterface(dev, 0);
|
|
#endif
|
|
|
|
struct vsllink *result = malloc(sizeof(struct vsllink));
|
|
result->usb_handle = dev;
|
|
return result;
|
|
}
|
|
|
|
static void vsllink_usb_close(struct vsllink *vsllink)
|
|
{
|
|
int ret;
|
|
|
|
ret = usb_release_interface(vsllink->usb_handle, vsllink_usb_interface);
|
|
if (ret != 0)
|
|
{
|
|
LOG_ERROR("fail to release interface %d, %d returned", vsllink_usb_interface, ret);
|
|
exit(-1);
|
|
}
|
|
|
|
ret = usb_close(vsllink->usb_handle);
|
|
if (ret != 0)
|
|
{
|
|
LOG_ERROR("fail to close usb, %d returned", ret);
|
|
exit(-1);
|
|
}
|
|
|
|
free(vsllink);
|
|
}
|
|
|
|
/* Send a message and receive the reply. */
|
|
static int vsllink_usb_message(struct vsllink *vsllink, int out_length, int in_length)
|
|
{
|
|
int result;
|
|
|
|
result = vsllink_usb_write(vsllink, out_length);
|
|
if (result == out_length)
|
|
{
|
|
if (in_length > 0)
|
|
{
|
|
result = vsllink_usb_read(vsllink);
|
|
if (result == in_length)
|
|
{
|
|
return result;
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("usb_bulk_read failed (requested=%d, result=%d)", in_length, result);
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("usb_bulk_write failed (requested=%d, result=%d)", out_length, result);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* Write data from out_buffer to USB. */
|
|
static int vsllink_usb_write(struct vsllink *vsllink, int out_length)
|
|
{
|
|
int result;
|
|
|
|
if (out_length > VSLLINK_BufferSize)
|
|
{
|
|
LOG_ERROR("vsllink_write illegal out_length=%d (max=%d)", out_length, VSLLINK_BufferSize);
|
|
return -1;
|
|
}
|
|
|
|
result = usb_bulk_write(vsllink->usb_handle, vsllink_usb_bulkout, \
|
|
(char *)vsllink_usb_out_buffer, out_length, VSLLINK_USB_TIMEOUT);
|
|
|
|
DEBUG_JTAG_IO("vsllink_usb_write, out_length = %d, result = %d", out_length, result);
|
|
|
|
#ifdef _DEBUG_USB_COMMS_
|
|
LOG_DEBUG("USB out:");
|
|
vsllink_debug_buffer(vsllink_usb_out_buffer, out_length);
|
|
#endif
|
|
|
|
#ifdef _VSLLINK_IN_DEBUG_MODE_
|
|
usleep(100000);
|
|
#endif
|
|
|
|
return result;
|
|
}
|
|
|
|
/* Read data from USB into in_buffer. */
|
|
static int vsllink_usb_read(struct vsllink *vsllink)
|
|
{
|
|
int result = usb_bulk_read(vsllink->usb_handle, vsllink_usb_bulkin, \
|
|
(char *)vsllink_usb_in_buffer, VSLLINK_BufferSize, VSLLINK_USB_TIMEOUT);
|
|
|
|
DEBUG_JTAG_IO("vsllink_usb_read, result = %d", result);
|
|
|
|
#ifdef _DEBUG_USB_COMMS_
|
|
LOG_DEBUG("USB in:");
|
|
vsllink_debug_buffer(vsllink_usb_in_buffer, result);
|
|
#endif
|
|
return result;
|
|
}
|
|
|
|
#define BYTES_PER_LINE 16
|
|
|
|
#if defined _DEBUG_USB_COMMS_ || defined _DEBUG_JTAG_IO_
|
|
static void vsllink_debug_buffer(uint8_t *buffer, int length)
|
|
{
|
|
char line[81];
|
|
char s[4];
|
|
int i;
|
|
int j;
|
|
|
|
for (i = 0; i < length; i += BYTES_PER_LINE)
|
|
{
|
|
snprintf(line, 5, "%04x", i);
|
|
for (j = i; j < i + BYTES_PER_LINE && j < length; j++)
|
|
{
|
|
snprintf(s, 4, " %02x", buffer[j]);
|
|
strcat(line, s);
|
|
}
|
|
LOG_DEBUG("%s", line);
|
|
}
|
|
}
|
|
#endif // _DEBUG_USB_COMMS_ || _DEBUG_JTAG_IO_
|
|
|
|
static const struct command_registration vsllink_command_handlers[] = {
|
|
{
|
|
.name = "vsllink_usb_vid",
|
|
.handler = &vsllink_handle_usb_vid_command,
|
|
.mode = COMMAND_CONFIG,
|
|
},
|
|
{
|
|
.name = "vsllink_usb_pid",
|
|
.handler = &vsllink_handle_usb_pid_command,
|
|
.mode = COMMAND_CONFIG,
|
|
},
|
|
{
|
|
.name = "vsllink_usb_bulkin",
|
|
.handler = &vsllink_handle_usb_bulkin_command,
|
|
.mode = COMMAND_CONFIG,
|
|
},
|
|
{
|
|
.name = "vsllink_usb_bulkout",
|
|
.handler = &vsllink_handle_usb_bulkout_command,
|
|
.mode = COMMAND_CONFIG,
|
|
},
|
|
{
|
|
.name = "vsllink_usb_interface",
|
|
.handler = &vsllink_handle_usb_interface_command,
|
|
.mode = COMMAND_CONFIG,
|
|
},
|
|
{
|
|
.name = "vsllink_mode",
|
|
.handler = &vsllink_handle_mode_command,
|
|
.mode = COMMAND_CONFIG,
|
|
},
|
|
COMMAND_REGISTRATION_DONE
|
|
};
|
|
|
|
struct jtag_interface vsllink_interface = {
|
|
.name = "vsllink",
|
|
.commands = vsllink_command_handlers,
|
|
|
|
.init = &vsllink_init,
|
|
.quit = &vsllink_quit,
|
|
.khz = &vsllink_khz,
|
|
.speed = &vsllink_speed,
|
|
.speed_div = &vsllink_speed_div,
|
|
.execute_queue = &vsllink_execute_queue,
|
|
};
|