/***************************************************************************
- * Copyright (C) 2007 by Simon Qian <SimonQian@SimonQian.com> *
+ * 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 *
#include "config.h"
#endif
-#include "replacements.h"
-
-#include "jtag.h"
+#include "interface.h"
+#include "commands.h"
#include <usb.h>
-#include <string.h>
-#include "log.h"
//#define _VSLLINK_IN_DEBUG_MODE_
-/* enable this to view USB communication
- */
-#if 0
-#define _DEBUG_USB_COMMS_
-#endif
-
-#ifdef _DEBUG_JTAG_IO_
-#define DEBUG_JTAG_IO(expr ...) LOG_DEBUG(expr)
-#else
-#define DEBUG_JTAG_IO(expr ...)
-#endif
-
-#define VID 0x03EB
-#define PID 0x2103
-#define VSLLINK_WRITE_ENDPOINT 0x02
-#define VSLLINK_READ_ENDPOINT 0x82
+#define VSLLINK_MODE_NORMAL 0
+#define VSLLINK_MODE_DMA 1
-u16 vsllink_vid = VID;
-u16 vsllink_pid = PID;
-u8 vsllink_bulkout = VSLLINK_WRITE_ENDPOINT;
-u8 vsllink_bulkin = VSLLINK_READ_ENDPOINT;
-
-#define VSLLINK_USB_TIMEOUT 1000
+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 u8* vsllink_usb_in_buffer = NULL;
-static u8* vsllink_usb_out_buffer = NULL;
+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_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 JTAG_PINMSK_TDO (1 << 7)
-#define VSLLINK_TAP_MOVE(from, to) VSLLINK_tap_move[tap_move_map[from]][tap_move_map[to]]
+#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
* 3: Pause-DR
* 4: Shift-IR
* 5: Pause-IR
- *
+ *
* SD->SD and SI->SI have to be caught in interface specific code
*/
-u8 VSLLINK_tap_move[6][6] =
+static uint8_t VSLLINK_tap_move[6][6] =
{
/* TLR RTI SD PD SI PI */
- {0xff, 0x00, 0x2f, 0x0a, 0x37, 0x16}, /* TLR */
+ {0xff, 0x7f, 0x2f, 0x0a, 0x37, 0x16}, /* TLR */
{0xff, 0x00, 0x45, 0x05, 0x4b, 0x0b}, /* RTI */
{0xff, 0x61, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
- {0xff, 0x60, 0x40, 0x17, 0x3c, 0x2f}, /* PD */
+ {0xfe, 0x60, 0x40, 0x5c, 0x3c, 0x5e}, /* PD */
{0xff, 0x61, 0x07, 0x17, 0x00, 0x01}, /* SI */
- {0xff, 0x60, 0x38, 0x17, 0x40, 0x2f} /* PI */
+ {0xfe, 0x60, 0x38, 0x5c, 0x40, 0x5e} /* PI */
};
-u8 VSLLINK_TAP_MOVE_FROM_E1[6] =
+typedef struct insert_insignificant_operation
{
-// TLR RTI SD PD SI PI
- 0xff, 0x60, 0x38, 0x5c, 0x3c, 0x5E
-};
+ unsigned char insert_value;
+ unsigned char insert_position;
+}insert_insignificant_operation_t;
-u8 VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[7][6][2] =
+static insert_insignificant_operation_t VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[6][6] =
{
/* stuff offset */
{/* TLR */
{0, 0,}}, /* PI */
};
-u8 VSLLINK_BIT_MSK[8] =
+static uint8_t VSLLINK_BIT_MSK[8] =
{
0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f
};
+typedef struct
+{
+ int offset;
+ int length; /* Number of bits to read */
+ scan_command_t *command; /* Corresponding scan command */
+ uint8_t *buffer;
+} pending_scan_result_t;
+
+#define MAX_PENDING_SCAN_RESULTS 256
+
+static int pending_scan_results_length;
+static pending_scan_result_t pending_scan_results_buffer[MAX_PENDING_SCAN_RESULTS];
+
/* External interface functions */
-int vsllink_execute_queue(void);
-int vsllink_speed(int speed);
-int vsllink_khz(int khz, int *jtag_speed);
-int vsllink_speed_div(int jtag_speed, int *khz);
-int vsllink_register_commands(struct command_context_s *cmd_ctx);
-int vsllink_init(void);
-int vsllink_quit(void);
+static int vsllink_execute_queue(void);
+static int vsllink_speed(int speed);
+static int vsllink_khz(int khz, int *jtag_speed);
+static int vsllink_speed_div(int jtag_speed, int *khz);
+static int vsllink_register_commands(struct command_context_s *cmd_ctx);
+static int vsllink_init(void);
+static int vsllink_quit(void);
/* CLI command handler functions */
-int vsllink_handle_usb_vid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int vsllink_handle_usb_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int vsllink_handle_usb_bulkin_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int vsllink_handle_usb_bulkout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int vsllink_handle_usb_vid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int vsllink_handle_usb_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int vsllink_handle_usb_bulkin_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int vsllink_handle_usb_bulkout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int vsllink_handle_usb_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int vsllink_handle_mode_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
/* Queue command functions */
-void vsllink_end_state(enum tap_state state);
-void vsllink_state_move(void);
-void vsllink_path_move(int num_states, enum tap_state *path);
-void vsllink_runtest(int num_cycles);
-void vsllink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command);
-void vsllink_reset(int trst, int srst);
-void vsllink_simple_command(u8 command);
+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, scan_command_t *command);
+static void vsllink_scan_normal(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, scan_command_t *command);
+static void (*vsllink_scan)(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, scan_command_t *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 */
-void vsllink_tap_init(void);
-int vsllink_tap_execute(void);
-void vsllink_tap_ensure_space(int scans, int bytes);
-void vsllink_tap_append_scan(int length, u8 *buffer, scan_command_t *command, int offset);
+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, scan_command_t *command);
+static void vsllink_tap_append_scan_normal(int length, uint8_t *buffer, scan_command_t *command, int offset);
/* VSLLink lowlevel functions */
typedef struct vsllink_jtag
struct usb_dev_handle* usb_handle;
} vsllink_jtag_t;
-vsllink_jtag_t *vsllink_usb_open(void);
-void vsllink_usb_close(vsllink_jtag_t *vsllink_jtag);
-int vsllink_usb_message(vsllink_jtag_t *vsllink_jtag, int out_length, int in_length);
-int vsllink_usb_write(vsllink_jtag_t *vsllink_jtag, int out_length);
-int vsllink_usb_read(vsllink_jtag_t *vsllink_jtag);
+static vsllink_jtag_t *vsllink_usb_open(void);
+static void vsllink_usb_close(vsllink_jtag_t *vsllink_jtag);
+static int vsllink_usb_message(vsllink_jtag_t *vsllink_jtag, int out_length, int in_length);
+static int vsllink_usb_write(vsllink_jtag_t *vsllink_jtag, int out_length);
+static int vsllink_usb_read(vsllink_jtag_t *vsllink_jtag);
+
+#if defined _DEBUG_USB_COMMS_ || defined _DEBUG_JTAG_IO_
+static void vsllink_debug_buffer(uint8_t *buffer, int length);
+#endif
-void vsllink_debug_buffer(u8 *buffer, int length);
+static int vsllink_tms_data_len = 0;
+static uint8_t* vsllink_tms_cmd_pos;
-int vsllink_tms_data_len = 0;
-u8* 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;
-vsllink_jtag_t* vsllink_jtag_handle;
+static vsllink_jtag_t* vsllink_jtag_handle = NULL;
/***************************************************************************/
/* External interface implementation */
.quit = vsllink_quit
};
-int vsllink_execute_queue(void)
+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)
{
jtag_command_t *cmd = jtag_command_queue;
int scan_size;
enum scan_type type;
- u8 *buffer;
+ uint8_t *buffer;
- DEBUG_JTAG_IO("--------------------------------------------------------------------------------");
+ DEBUG_JTAG_IO("--------------------------------- vsllink -------------------------------------");
- vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD;
- vsllink_usb_out_buffer_idx = 3;
+ reset_command_pointer();
while (cmd != NULL)
{
switch (cmd->type)
{
- case JTAG_END_STATE:
- DEBUG_JTAG_IO("end_state: %i", cmd->cmd.end_state->end_state);
-
- if (cmd->cmd.end_state->end_state != -1)
- {
- vsllink_end_state(cmd->cmd.end_state->end_state);
- }
- break;
-
case JTAG_RUNTEST:
- DEBUG_JTAG_IO( "runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, \
- cmd->cmd.runtest->end_state);
-
- if (cmd->cmd.runtest->end_state != -1)
- {
- vsllink_end_state(cmd->cmd.runtest->end_state);
- }
+ 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 %i", cmd->cmd.statemove->end_state);
-
- if (cmd->cmd.statemove->end_state != -1)
- {
- vsllink_end_state(cmd->cmd.statemove->end_state);
- }
+ 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 %i", \
+ DEBUG_JTAG_IO("pathmove: %i states, end in %s", \
cmd->cmd.pathmove->num_states, \
- cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
-
+ 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:
- if (cmd->cmd.scan->end_state != -1)
- {
- vsllink_end_state(cmd->cmd.scan->end_state);
- }
-
+ 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 %d:", scan_size, cmd->cmd.scan->end_state);
+ 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 %d:", scan_size, cmd->cmd.scan->end_state);
+ 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_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)
{
- cur_state = TAP_RESET;
+ tap_set_state(TAP_RESET);
}
vsllink_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
-
- vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD;
- vsllink_usb_out_buffer_idx = 3;
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");
+ LOG_ERROR("BUG: unknown JTAG command type encountered: %d", cmd->type);
exit(-1);
}
cmd = cmd->next;
}
-
+
return vsllink_tap_execute();
}
-int vsllink_speed(int speed)
+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_jtag_handle, 3);
-
+
if (result == 3)
{
return ERROR_OK;
LOG_ERROR("VSLLink setting speed failed (%d)", result);
return ERROR_JTAG_DEVICE_ERROR;
}
-
- return ERROR_OK;
-}
-int vsllink_khz(int khz, int *jtag_speed)
-{
- *jtag_speed = khz;
-
return ERROR_OK;
}
-int vsllink_speed_div(int jtag_speed, int *khz)
+static int vsllink_khz(int khz, int *jtag_speed)
{
- *khz = jtag_speed;
+ *jtag_speed = khz;
return ERROR_OK;
}
-int vsllink_register_commands(struct command_context_s *cmd_ctx)
+static int vsllink_speed_div(int jtag_speed, int *khz)
{
- register_command(cmd_ctx, NULL, "vsllink_usb_vid", vsllink_handle_usb_vid_command,
- COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "vsllink_usb_pid", vsllink_handle_usb_pid_command,
- COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "vsllink_usb_bulkin", vsllink_handle_usb_bulkin_command,
- COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "vsllink_usb_bulkout", vsllink_handle_usb_bulkout_command,
- COMMAND_CONFIG, NULL);
+ *khz = jtag_speed;
return ERROR_OK;
}
-int vsllink_init(void)
+static int vsllink_init(void)
{
- int check_cnt;
+ int check_cnt, to_tmp;
int result;
char version_str[100];
}
vsllink_jtag_handle = vsllink_usb_open();
-
+
if (vsllink_jtag_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 < 3)
+ while (check_cnt < 5)
{
- vsllink_simple_command(VSLLINK_CMD_CONN);
+ vsllink_simple_command(0x00);
result = vsllink_usb_read(vsllink_jtag_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(version_str);
+ LOG_INFO("%s", version_str);
// free the pre-alloc memroy
free(vsllink_usb_in_buffer);
{
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;
- result = vsllink_usb_write(vsllink_jtag_handle, 3);
- if (result != 3)
+ if (vsllink_usb_write(vsllink_jtag_handle, 3) != 3)
{
LOG_ERROR("VSLLink USB send data error");
exit(-1);
LOG_INFO("VSLLink JTAG Interface ready");
vsllink_tap_init();
-
+
return ERROR_OK;
}
-int vsllink_quit(void)
+static int vsllink_quit(void)
{
if ((vsllink_usb_in_buffer != NULL) && (vsllink_usb_out_buffer != NULL))
{
- vsllink_simple_command(VSLLINK_CMD_DISCONN);
+ // 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_jtag_handle, 3) != 3)
+ {
+ LOG_ERROR("VSLLink USB send data error");
+ exit(-1);
+ }
+
+ // disconnect
+ vsllink_disconnect();
vsllink_usb_close(vsllink_jtag_handle);
+ vsllink_jtag_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;
}
-// 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.
-void VSLLINK_add_tms_from_RTI(enum tap_state state)
+/***************************************************************************/
+/* Queue command implementations */
+static int vsllink_disconnect(void)
+{
+ vsllink_simple_command(VSLLINK_CMD_DISCONN);
+ return ERROR_OK;
+}
+
+static int vsllink_connect(void)
{
- u8 tms_scan = VSLLINK_TAP_MOVE(TAP_IDLE, state);
- u16 tms2;
+ char vsllink_str[100];
+
+ vsllink_usb_out_buffer[0] = VSLLINK_CMD_CONN;
+ vsllink_usb_out_buffer[1] = vsllink_mode;
+ vsllink_usb_message(vsllink_jtag_handle, 2, 0);
+ if (vsllink_usb_read(vsllink_jtag_handle) > 2)
+ {
+ strncpy(vsllink_str, (char *)vsllink_usb_in_buffer + 2, sizeof(vsllink_str));
+ LOG_INFO("%s", vsllink_str);
+ }
+
+ return ERROR_OK;
+}
- if ((cur_state != TAP_IDLE) || (state == TAP_IDLE) || (vsllink_tms_data_len <= 0) || (vsllink_tms_data_len >= 8) || (vsllink_tms_cmd_pos == NULL))
+// 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;
+ insert_insignificant_operation_t *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[VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[1][tap_move_map[state]][1]]) << vsllink_tms_data_len;
- if (VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[1][tap_move_map[state]][0] == 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 + VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[1][tap_move_map[state]][1]);
+ tms2 |= VSLLINK_BIT_MSK[8 - vsllink_tms_data_len] << \
+ (vsllink_tms_data_len + insert->insert_position);
}
- tms2 |= (tms_scan >> VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[1][tap_move_map[state]][1]) << (8 + VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[1][tap_move_map[state]][1]);
+ 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_cmd_pos = NULL;
}
-/***************************************************************************/
-/* Queue command implementations */
-
-void vsllink_end_state(enum tap_state state)
+static void vsllink_end_state(tap_state_t state)
{
- if (tap_move_map[state] != -1)
+ if (tap_is_state_stable(state))
{
- end_state = state;
+ tap_set_end_state(state);
}
else
{
}
/* Goes to the end state. */
-void vsllink_state_move(void)
+static void vsllink_state_move_normal(void)
{
if (vsllink_tms_data_len > 0)
{
- VSLLINK_add_tms_from_RTI(end_state);
+ 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(cur_state, end_state);
+ 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;
+ insert_insignificant_operation_t *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);
+ }
}
- cur_state = end_state;
+ tap_set_state(tap_get_end_state());
}
// write tms from current vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx]
-void vsllink_add_path(int start, int num, enum tap_state *path)
+static void vsllink_add_path(int start, int num, tap_state_t *path)
{
int i;
{
if (i > 0)
{
- vsllink_usb_out_buffer[++vsllink_usb_out_buffer_idx] = 0;
- }
- else
- {
- vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0;
+ vsllink_usb_out_buffer_idx++;
}
+ vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0;
}
- if (path[i - start] == tap_transitions[cur_state].high)
+ 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: %d -> %d isn't a valid TAP transition", cur_state, path[i]);
+ LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path[i]));
exit(-1);
}
-
- cur_state = path[i];
+ 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;
}
- end_state = cur_state;
+
+ tap_set_end_state(tap_get_state());
}
-void vsllink_path_move(int num_states, enum tap_state *path)
+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)
{
- if ((vsllink_tms_data_len + num_states) < 8)
- {
- vsllink_add_path(vsllink_tms_data_len, num_states, path);
- num_states = 0;
- }
- else if ((vsllink_tms_data_len + num_states) < 16)
+ // 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)
{
- if ((*vsllink_tms_cmd_pos & VSLLINK_CMDJTAGSEQ_LENMSK) \
- < VSLLINK_CMDJTAGSEQ_LENMSK)
+ // merge into last tms shift
+ if (tms_len < 8)
{
- *vsllink_tms_cmd_pos++;
+ // just append tms data to the last tms byte
vsllink_add_path(vsllink_tms_data_len, num_states, path);
}
- else
+ else if (tms_len == 8)
{
- // need a new VSLLINK_CMDJTAGSEQ_TMSBYTE command
- // if vsllink_tms_data_len > 0, length of VSLLINK_CMDJTAGSEQ_TMSBYTE MUST be > 1(tms_len > 2)
- *vsllink_tms_cmd_pos--;
- vsllink_add_path(vsllink_tms_data_len, 8 - vsllink_tms_data_len, path);
- vsllink_usb_out_buffer_idx++;
- vsllink_tap_ensure_space(0, 3);
- vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
- vsllink_tms_cmd_pos = vsllink_usb_out_buffer + vsllink_usb_out_buffer_idx;
- vsllink_add_path(vsllink_tms_data_len, num_states + vsllink_tms_data_len - 8, path + 8 - vsllink_tms_data_len);
+ // 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_idx = 16 - vsllink_tms_data_len;
- vsllink_usb_out_buffer_idx++;
- num_states -= 16 - vsllink_tms_data_len;
path += 16 - vsllink_tms_data_len;
+ num_states -= 16 - vsllink_tms_data_len;
vsllink_tms_data_len = 0;
vsllink_tms_cmd_pos = NULL;
}
{
if (tms_len < (VSLLINK_CMDJTAGSEQ_LENMSK + 1))
{
- vsllink_usb_out_buffer[tms_cmd_pos]++;
- vsllink_usb_out_buffer = vsllink_usb_out_buffer + tms_cmd_pos;
+ 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;
}
}
}
}
-
-void vsllink_runtest(int num_cycles)
+static void vsllink_path_move_dma(int num_states, tap_state_t *path)
{
- int i, j;
- int tms_len, first_tms = 0, tms_cmd_pos;
- enum tap_state saved_end_state = end_state;
+ int i, j = 0;
- if (cur_state != TAP_IDLE)
+ if (tap_length & 7)
{
- vsllink_end_state(TAP_IDLE);
-
- if (vsllink_tms_data_len > 0)
+ if ((8 - (tap_length & 7)) < num_states)
{
- VSLLINK_add_tms_from_RTI(end_state);
+ j = 8 - (tap_length & 7);
}
else
{
- first_tms = 1;
+ 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)
{
- // cur_state == TAP_IDLE
- if ((vsllink_tms_data_len + num_cycles) < 8)
+ // 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)
{
- vsllink_tms_data_len += num_cycles;
- num_cycles = 0;
+ // append '1' for tms
+ tms_append_byte = (uint16_t)((((1 << num_cycles) - 1) << vsllink_tms_data_len) & 0xFFFF);
}
- else if ((vsllink_tms_data_len + num_cycles) < 16)
+ else
+ {
+ // append '0' for tms
+ tms_append_byte = 0;
+ }
+ if (tms_len <= 16)
{
- if ((*vsllink_tms_cmd_pos & VSLLINK_CMDJTAGSEQ_LENMSK) \
- < VSLLINK_CMDJTAGSEQ_LENMSK)
+ // merge into last tms shift
+ if (tms_len < 8)
{
- *vsllink_tms_cmd_pos++;
- vsllink_usb_out_buffer[++vsllink_usb_out_buffer_idx] = 0;
+ // 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
+ else if (tms_len == 8)
{
- // need a new VSLLINK_CMDJTAGSEQ_TMSBYTE command
- // if vsllink_tms_data_len > 0, length of VSLLINK_CMDJTAGSEQ_TMSBYTE MUST be > 1(tms_len > 2)
- *vsllink_tms_cmd_pos--;
- vsllink_tap_ensure_space(0, 3);
- vsllink_usb_out_buffer[++vsllink_usb_out_buffer_idx] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
- vsllink_tms_cmd_pos = vsllink_usb_out_buffer + vsllink_usb_out_buffer_idx;
- vsllink_usb_out_buffer[++vsllink_usb_out_buffer_idx] = 0;
+ // 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;
}
- vsllink_tms_data_len = (vsllink_tms_data_len + num_cycles) & 7;
num_cycles = 0;
}
else
{
- vsllink_usb_out_buffer[++vsllink_usb_out_buffer_idx] = 0;
- vsllink_usb_out_buffer_idx++;
+ // 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
- tms_len = ((num_cycles + 7) >> 3) + first_tms;
- if (tms_len > 0)
+ if (vsllink_tms_data_len > 0)
{
- // Normal operation, don't need to append tms data
- vsllink_tms_data_len = num_cycles & 7;
-
- if (vsllink_tms_data_len > 0)
+ // num_cycles == 0
+ // no need to shift
+ if (num_cycles > 0)
{
- tms_len += 1;
+ LOG_ERROR("There MUST be some bugs in the driver");
+ exit(-1);
}
- // tms_len includes the length of tms byte to append
-
- // Make sure there is enough space
- // 1 more byte maybe needed for the last tms move
- vsllink_tap_ensure_space(0, (tms_len / VSLLINK_CMDJTAGSEQ_LENMSK) + tms_len + 1);
-
- while(tms_len > 0)
+ }
+ else
+ {
+ // get number of bytes left to be sent
+ tms_len = num_cycles >> 3;
+ if (tms_len > 0)
{
- if (tms_len > (VSLLINK_CMDJTAGSEQ_LENMSK + 1))
+ 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)
{
- i = VSLLINK_CMDJTAGSEQ_LENMSK + 1;
+ vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSCLOCK | 1;
}
else
{
- i = tms_len;
+ 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;
- tms_cmd_pos = vsllink_usb_out_buffer_idx;
-
- vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | (i - 1);
-
- if (first_tms)
- {
- vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(cur_state, end_state);
- first_tms = 0;
- j = i - 1;
- }
- else
- {
- j = i;
- }
+ vsllink_usb_in_want_length += 1;
+ pending_scan_results_buffer[pending_scan_results_length].buffer = NULL;
+ pending_scan_results_length++;
- while (j-- > 0)
+ if (tms_len > 0xFFFF)
{
- vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
+ vsllink_tap_execute();
}
-
- tms_len -= i;
}
- // post process vsllink_usb_out_buffer_idx
+ // post-process
+ vsllink_tms_data_len = num_cycles & 7;
if (vsllink_tms_data_len > 0)
{
- vsllink_usb_out_buffer_idx -= 2;
- }
-
- // Set end_state
- vsllink_end_state(saved_end_state);
- cur_state = TAP_IDLE;
- if (saved_end_state != TAP_IDLE)
- {
- 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)
{
- VSLLINK_add_tms_from_RTI(end_state);
+ // append '1' for tms
+ vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = (1 << vsllink_tms_data_len) - 1;
}
else
{
- if (i < (VSLLINK_CMDJTAGSEQ_LENMSK + 1))
- {
- vsllink_usb_out_buffer[tms_cmd_pos]++;
- vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(TAP_IDLE, end_state);
- }
- 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_IDLE, end_state);
- }
+ // append '0' for tms
+ vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0x00;
}
- cur_state = saved_end_state;
}
+ }
+}
+static void vsllink_stableclocks_dma(int num_cycles, int tms)
+{
+ int i, cur_cycles;
- if (vsllink_tms_data_len > 0)
+ if (tap_length & 7)
+ {
+ if ((8 - (tap_length & 7)) < num_cycles)
{
- vsllink_tms_cmd_pos = vsllink_usb_out_buffer + tms_cmd_pos;
+ 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;
}
- else
+
+ while (num_cycles > 0)
{
- // Set end_state if no RTI shifts
- vsllink_end_state(saved_end_state);
- cur_state = TAP_IDLE;
- if (saved_end_state != TAP_IDLE)
+ if (num_cycles > 8 * tap_buffer_size)
{
- 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_IDLE, end_state);
+ cur_cycles = 8 * tap_buffer_size;
+ }
+ else
+ {
+ cur_cycles = num_cycles;
+ }
+
+ vsllink_tap_ensure_space(0, cur_cycles);
- cur_state = saved_end_state;
+ for (i = 0; i < cur_cycles; i++)
+ {
+ vsllink_tap_append_step(tms, 0);
}
+
+ num_cycles -= cur_cycles;
}
}
-void vsllink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command)
+static void vsllink_runtest(int num_cycles)
{
- enum tap_state saved_end_state;
- u8 bits_left, tms_tmp, tdi_len;
+ 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, scan_command_t *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 = end_state;
-
+
+ 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 (cur_state == end_state)
+ if (tap_get_state() == tap_get_end_state())
{
- *vsllink_tms_cmd_pos--;
- tms_tmp = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
- vsllink_tap_ensure_space(1, tdi_len + 7);
+ // 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++] = ((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);
}
}
- vsllink_tap_append_scan(scan_size - vsllink_tms_data_len, buffer, command, 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_add_tms_from_RTI(end_state);
+ 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(scan_size, buffer, command, 0);
+ vsllink_tap_append_scan_normal(scan_size, buffer, command, 0);
}
}
else
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(cur_state, end_state);
+ 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(scan_size, buffer, command, 8);
+ vsllink_tap_append_scan_normal(scan_size, buffer, command, 8);
}
vsllink_end_state(saved_end_state);
bits_left = scan_size & 0x07;
- cur_state = ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE;
+ tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE);
if (bits_left > 0)
{
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 1 << 7;
}
- if (cur_state != end_state)
+ if (tap_get_state() != tap_get_end_state())
{
- vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE_FROM_E1[tap_move_map[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;
}
- cur_state = end_state;
+ 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, scan_command_t *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();
+ }
}
-void vsllink_reset(int trst, int srst)
+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;
result = vsllink_usb_write(vsllink_jtag_handle, 3);
if (result != 3)
{
- LOG_ERROR("VSLLink command VSLLINK_CMD_SET_PORT failed (%d)", result);
+ LOG_ERROR("VSLLink command VSLLINK_CMD_SET_PORT failed (%d)", result);
}
}
-void vsllink_simple_command(u8 command)
+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_jtag_handle, 1);
-
+
if (result != 1)
{
LOG_ERROR("VSLLink command 0x%02x failed (%d)", command, result);
}
}
-int vsllink_handle_usb_vid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int vsllink_register_commands(struct command_context_s *cmd_ctx)
+{
+ register_command(cmd_ctx, NULL, "vsllink_usb_vid", vsllink_handle_usb_vid_command,
+ COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "vsllink_usb_pid", vsllink_handle_usb_pid_command,
+ COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "vsllink_usb_bulkin", vsllink_handle_usb_bulkin_command,
+ COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "vsllink_usb_bulkout", vsllink_handle_usb_bulkout_command,
+ COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "vsllink_usb_interface", vsllink_handle_usb_interface_command,
+ COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "vsllink_mode", vsllink_handle_mode_command,
+ COMMAND_CONFIG, NULL);
+
+ return ERROR_OK;
+}
+
+static int vsllink_handle_mode_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc != 1) {
- LOG_ERROR("parameter error, should be one parameter for VID");
- return ERROR_OK;
+ LOG_ERROR("parameter error, should be one parameter for VID");
+ return ERROR_FAIL;
}
- vsllink_vid = strtol(args[0], NULL, 0);
+ if (!strcmp(args[0], "normal"))
+ {
+ vsllink_mode = VSLLINK_MODE_NORMAL;
+ }
+ else if (!strcmp(args[0], "dma"))
+ {
+ vsllink_mode = VSLLINK_MODE_DMA;
+ }
+ else
+ {
+ LOG_ERROR("invalid vsllink_mode: %s", args[0]);
+ return ERROR_FAIL;
+ }
return ERROR_OK;
}
-int vsllink_handle_usb_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int vsllink_handle_usb_vid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
- if (argc != 1) {
- LOG_ERROR("parameter error, should be one parameter for PID");
+ if (argc != 1)
+ {
+ LOG_ERROR("parameter error, should be one parameter for VID");
return ERROR_OK;
}
- vsllink_pid = strtol(args[0], NULL, 0);
+ return parse_u16(args[0], &vsllink_usb_vid);
+}
- return ERROR_OK;
+static int vsllink_handle_usb_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc != 1)
+ {
+ LOG_ERROR("parameter error, should be one parameter for PID");
+ return ERROR_OK;
+ }
+ return parse_u16(args[0], &vsllink_usb_pid);
}
-int vsllink_handle_usb_bulkin_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int vsllink_handle_usb_bulkin_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
- if (argc != 1) {
- LOG_ERROR("parameter error, should be one parameter for BULKIN endpoint");
+ if (argc != 1)
+ {
+ LOG_ERROR("parameter error, should be one parameter for BULKIN endpoint");
return ERROR_OK;
}
- vsllink_bulkin = strtol(args[0], NULL, 0) | 0x80;
+ int retval = parse_u8(args[0], &vsllink_usb_bulkin);
+ if (ERROR_OK == retval)
+ vsllink_usb_bulkin |= 0x80;
- return ERROR_OK;
+ return retval;
}
-int vsllink_handle_usb_bulkout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int vsllink_handle_usb_bulkout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
- if (argc != 1) {
- LOG_ERROR("parameter error, should be one parameter for BULKOUT endpoint");
+ if (argc != 1)
+ {
+ LOG_ERROR("parameter error, should be one parameter for BULKOUT endpoint");
return ERROR_OK;
}
- vsllink_bulkout = strtol(args[0], NULL, 0);
+ int retval = parse_u8(args[0], &vsllink_usb_bulkout);
+ if (ERROR_OK == retval)
+ vsllink_usb_bulkout &= ~0x80;
- return ERROR_OK;
+ return retval;
}
-/***************************************************************************/
-/* VSLLink tap functions */
-
-typedef struct
+static int vsllink_handle_usb_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
- int length; /* Number of bits to read */
- int offset;
- scan_command_t *command; /* Corresponding scan command */
- u8 *buffer;
-} pending_scan_result_t;
-
-#define MAX_PENDING_SCAN_RESULTS 256
+ if (argc != 1)
+ {
+ LOG_ERROR("parameter error, should be one parameter for interface number");
+ return ERROR_OK;
+ }
-static int pending_scan_results_length;
-static pending_scan_result_t pending_scan_results_buffer[MAX_PENDING_SCAN_RESULTS];
+ return parse_u8(args[0], &vsllink_usb_interface);
+}
+/***************************************************************************/
+/* VSLLink tap functions */
-void vsllink_tap_init()
+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;
+}
-void vsllink_tap_ensure_space(int scans, int bytes)
+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 || bytes > available_bytes)
+
+ 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();
- vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD;
- vsllink_usb_out_buffer_idx = 3;
}
}
-void vsllink_tap_append_scan(int length, u8 *buffer, scan_command_t *command, int offset)
+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, scan_command_t *command, int offset)
{
pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length];
int i;
pending_scan_results_length++;
}
+static void vsllink_tap_append_scan_dma(int length, uint8_t *buffer, scan_command_t *command)
+{
+ pending_scan_result_t *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 idle or pause state. */
-int vsllink_tap_execute()
+ * 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;
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'
- // the only possible state is TLR, no need to control the number of shifts in RLT
- // There MUST be some errors in the code
- LOG_ERROR("last tms bit is '1'");
- exit(-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
{
vsllink_tms_data_len = 0;
}
}
-
+
if (vsllink_usb_out_buffer_idx > 3)
{
if (vsllink_usb_out_buffer[0] == VSLLINK_CMD_HW_JTAGSEQCMD)
}
result = vsllink_usb_message(vsllink_jtag_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++)
{
pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[i];
- u8 *buffer = pending_scan_result->buffer;
+ uint8_t *buffer = pending_scan_result->buffer;
int length = pending_scan_result->length;
int offset = pending_scan_result->offset;
scan_command_t *command = pending_scan_result->command;
-
- /* Copy to buffer */
- 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);
+
+ 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_jtag_handle, 3 + 2 * byte_length, byte_length);
+ if (result == byte_length)
+ {
+ for (i = 0; i < pending_scan_results_length; i++)
+ {
+ pending_scan_result_t *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;
+
+ scan_command_t *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
vsllink_tap_init();
return ERROR_JTAG_QUEUE_FAILED;
}
-
+
if (pending_scan_result->buffer != NULL)
{
free(pending_scan_result->buffer);
- pending_scan_result->buffer = NULL;
}
}
}
else
{
- LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result, vsllink_usb_in_want_length);
+ 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 */
-vsllink_jtag_t* vsllink_usb_open()
+static vsllink_jtag_t* vsllink_usb_open(void)
{
struct usb_bus *busses;
struct usb_bus *bus;
struct usb_device *dev;
-
+ int ret;
+
vsllink_jtag_t *result;
-
+
result = (vsllink_jtag_t*) malloc(sizeof(vsllink_jtag_t));
-
+
usb_init();
usb_find_busses();
usb_find_devices();
-
+
busses = usb_get_busses();
-
+
/* find vsllink_jtag device in usb bus */
-
+
for (bus = busses; bus; bus = bus->next)
{
for (dev = bus->devices; dev; dev = dev->next)
{
- if ((dev->descriptor.idVendor == vsllink_vid) && (dev->descriptor.idProduct == vsllink_pid))
+ if ((dev->descriptor.idVendor == vsllink_usb_vid) && (dev->descriptor.idProduct == vsllink_usb_pid))
{
result->usb_handle = usb_open(dev);
-
+ if (NULL == result->usb_handle)
+ {
+ LOG_ERROR("failed to open %04X:%04X, not enough permissions?", vsllink_usb_vid, vsllink_usb_pid);
+ exit(-1);
+ }
+
/* usb_set_configuration required under win32 */
- usb_set_configuration(result->usb_handle, dev->config[0].bConfigurationValue);
- usb_claim_interface(result->usb_handle, 0);
-
+ ret = usb_set_configuration(result->usb_handle, dev->config[0].bConfigurationValue);
+ if (ret != 0)
+ {
+ LOG_ERROR("fail to set configuration to %d, %d returned, not enough permissions?", dev->config[0].bConfigurationValue, ret);
+ exit(-1);
+ }
+ ret = usb_claim_interface(result->usb_handle, vsllink_usb_interface);
+ if (ret != 0)
+ {
+ LOG_ERROR("fail to claim interface %d, %d returned", vsllink_usb_interface, ret);
+ exit(-1);
+ }
+
#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(result->usb_handle, 0);
-#endif
+#endif
return result;
}
}
}
-
+
free(result);
return NULL;
}
-void vsllink_usb_close(vsllink_jtag_t *vsllink_jtag)
+static void vsllink_usb_close(vsllink_jtag_t *vsllink_jtag)
{
- usb_close(vsllink_jtag->usb_handle);
+ int ret;
+
+ ret = usb_release_interface(vsllink_jtag->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_jtag->usb_handle);
+ if (ret != 0)
+ {
+ LOG_ERROR("fail to close usb, %d returned", ret);
+ exit(-1);
+ }
+
free(vsllink_jtag);
}
/* Send a message and receive the reply. */
-int vsllink_usb_message(vsllink_jtag_t *vsllink_jtag, int out_length, int in_length)
+static int vsllink_usb_message(vsllink_jtag_t *vsllink_jtag, int out_length, int in_length)
{
int result;
-
+
result = vsllink_usb_write(vsllink_jtag, out_length);
if (result == out_length)
{
}
/* Write data from out_buffer to USB. */
-int vsllink_usb_write(vsllink_jtag_t *vsllink_jtag, int out_length)
+static int vsllink_usb_write(vsllink_jtag_t *vsllink_jtag, int out_length)
{
int result;
-
+
if (out_length > VSLLINK_BufferSize)
{
LOG_ERROR("vsllink_jtag_write illegal out_length=%d (max=%d)", out_length, VSLLINK_BufferSize);
return -1;
}
-
- result = usb_bulk_write(vsllink_jtag->usb_handle, vsllink_bulkout, \
+
+ result = usb_bulk_write(vsllink_jtag->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);
}
/* Read data from USB into in_buffer. */
-int vsllink_usb_read(vsllink_jtag_t *vsllink_jtag)
+static int vsllink_usb_read(vsllink_jtag_t *vsllink_jtag)
{
- int result = usb_bulk_read(vsllink_jtag->usb_handle, vsllink_bulkin, \
+ int result = usb_bulk_read(vsllink_jtag->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);
#define BYTES_PER_LINE 16
-void vsllink_debug_buffer(u8 *buffer, int length)
+#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);
snprintf(s, 4, " %02x", buffer[j]);
strcat(line, s);
}
- LOG_DEBUG(line);
+ LOG_DEBUG("%s", line);
}
}
+#endif // _DEBUG_USB_COMMS_ || _DEBUG_JTAG_IO_
projects / fw / openocd / blobdiff