/***************************************************************************
- * Copyright (C) 2009 by Simon Qian <SimonQian@SimonQian.com> *
+ * Copyright (C) 2009-2010 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 *
* 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. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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.
+ * It's distributed under GPLv3.
+ * You can find it at http://www.Versaloon.com/.
*/
#ifdef HAVE_CONFIG_H
#include <jtag/interface.h>
#include <jtag/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;
-};
+#include <jtag/swd.h>
+#include <libusb.h>
-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 */
-};
+#include "versaloon/versaloon_include.h"
+#include "versaloon/versaloon.h"
-static uint8_t VSLLINK_BIT_MSK[8] =
-{
- 0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f
-};
+static int vsllink_tms_offset;
struct pending_scan_result {
- int offset;
- int length; /* Number of bits to read */
- struct scan_command *command; /* Corresponding scan command */
+ int src_offset;
+ int dest_offset;
+ int length; /* Number of bits to read */
+ struct scan_command *command; /* Corresponding scan command */
+ uint8_t *ack;
uint8_t *buffer;
+ bool last; /* indicate the last scan pending */
};
#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];
+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_state_move(void);
+static void vsllink_path_move(int num_states, tap_state_t *path);
+static void vsllink_tms(int num_bits, const uint8_t *bits);
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_stableclocks(int num_cycles, int tms);
+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);
+static void vsllink_tap_init(void);
+static int vsllink_tap_execute(void);
+static void vsllink_tap_ensure_pending(int scans);
+static void vsllink_tap_append_scan(int length, uint8_t *buffer,
+ struct scan_command *command);
+
+/* VSLLink SWD functions */
+static int_least32_t vsllink_swd_frequency(struct adiv5_dap *dap,
+ int_least32_t hz);
+static int vsllink_swd_switch_seq(struct adiv5_dap *dap,
+ enum swd_special_seq seq);
/* VSLLink lowlevel functions */
struct vsllink {
- struct usb_dev_handle* usb_handle;
+ struct libusb_context *libusb_ctx;
+ struct libusb_device_handle *usb_device_handle;
};
-static struct vsllink *vsllink_usb_open(void);
+static int vsllink_usb_open(struct vsllink *vsllink);
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_
+#if 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 int tap_length;
+static int tap_buffer_size;
+static uint8_t *tms_buffer;
+static uint8_t *tdi_buffer;
+static uint8_t *tdo_buffer;
-static struct vsllink* vsllink_handle = NULL;
+static bool swd_mode;
-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 struct vsllink *vsllink_handle;
static int vsllink_execute_queue(void)
{
enum scan_type type;
uint8_t *buffer;
- DEBUG_JTAG_IO("--------------------------------- vsllink -------------------------------------");
+ DEBUG_JTAG_IO("-------------------------------------"
+ " vsllink "
+ "-------------------------------------");
- reset_command_pointer();
- while (cmd != NULL)
- {
- switch (cmd->type)
- {
+ 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));
+ 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));
+ case JTAG_TLR_RESET:
+ 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]));
+ 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:
+ DEBUG_JTAG_IO("JTAG Scan...");
+
vsllink_end_state(cmd->cmd.scan->end_state);
- scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
+ 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));
- }
+ 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));
- }
+ 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);
+ vsllink_debug_buffer(buffer,
+ DIV_ROUND_UP(scan_size, 8));
#endif
type = jtag_scan_type(cmd->cmd.scan);
- vsllink_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size, 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);
+ 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);
+
+ vsllink_reset(cmd->cmd.reset->trst,
+ cmd->cmd.reset->srst);
break;
case JTAG_SLEEP:
break;
case JTAG_STABLECLOCKS:
- DEBUG_JTAG_IO("add %d clocks", cmd->cmd.stableclocks->num_cycles);
- switch (tap_get_state())
- {
+ 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
+ /* tms must be '1' to stay
+ * n TAP_RESET mode
+ */
scan_size = 1;
break;
case TAP_DRSHIFT:
case TAP_DRPAUSE:
case TAP_IRSHIFT:
case TAP_IRPAUSE:
- // in other mode, tms should be '0'
+ /* else, tms should be '0' */
scan_size = 0;
- break; /* above stable states are OK */
+ 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);
+ LOG_ERROR("jtag_add_clocks() "
+ "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);
+ case JTAG_TMS:
+ DEBUG_JTAG_IO("add %d jtag tms",
+ cmd->cmd.tms->num_bits);
+
+ vsllink_tms(cmd->cmd.tms->num_bits, cmd->cmd.tms->bits);
+ break;
+
+ default:
+ LOG_ERROR("BUG: unknown JTAG command type "
+ "encountered: %d", cmd->type);
+ exit(-1);
}
cmd = cmd->next;
}
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)
- {
+ if (swd_mode) {
+ vsllink_swd_frequency(NULL, speed * 1000);
return ERROR_OK;
}
- else
- {
- LOG_ERROR("VSLLink setting speed failed (%d)", result);
- return ERROR_JTAG_DEVICE_ERROR;
- }
- return ERROR_OK;
+ versaloon_interface.adaptors.jtag_raw.config(0, (uint16_t)speed);
+ return versaloon_interface.adaptors.peripheral_commit();
}
static int vsllink_khz(int khz, int *jtag_speed)
return ERROR_OK;
}
-static int vsllink_init(void)
+static void vsllink_free_buffer(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;
+ if (tdi_buffer != NULL) {
+ free(tdi_buffer);
+ tdi_buffer = NULL;
}
- 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 (tdo_buffer != NULL) {
+ free(tdo_buffer);
+ tdo_buffer = NULL;
}
- if (check_cnt == 3)
- {
- // It's dangerout to proced
- LOG_ERROR("VSLLink initial failed");
- exit(-1);
+ if (tms_buffer != NULL) {
+ free(tms_buffer);
+ tms_buffer = NULL;
}
- VSLLINK_USB_TIMEOUT = to_tmp;
-
- vsllink_simple_command(0x01);
- result = vsllink_usb_read(vsllink_handle);
- if (result != 2)
- LOG_WARNING("Fail to get target voltage");
- else
- LOG_INFO("Target runs at %d mV", vsllink_usb_in_buffer[0]
- + (vsllink_usb_in_buffer[1] << 8));
-
- // 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;
+static int vsllink_quit(void)
+{
+ versaloon_interface.adaptors.gpio.config(0, GPIO_SRST | GPIO_TRST,
+ 0, 0, GPIO_SRST | GPIO_TRST);
+ versaloon_interface.adaptors.gpio.fini(0);
- LOG_INFO("vsllink run in NORMAL mode");
- }
+ if (swd_mode)
+ versaloon_interface.adaptors.swd.fini(0);
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");
- }
+ versaloon_interface.adaptors.jtag_raw.fini(0);
- // 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);
- }
+ versaloon_interface.adaptors.peripheral_commit();
+ versaloon_interface.fini();
- vsllink_reset(0, 0);
+ vsllink_free_buffer();
+ vsllink_usb_close(vsllink_handle);
- LOG_INFO("VSLLink JTAG Interface ready");
-
- vsllink_tap_init();
+ free(vsllink_handle);
return ERROR_OK;
}
-static int vsllink_quit(void)
+static int vsllink_interface_init(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;
+ vsllink_handle = malloc(sizeof(struct vsllink));
+ if (NULL == vsllink_handle) {
+ LOG_ERROR("unable to allocate memory");
+ return ERROR_FAIL;
}
- 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;
+ libusb_init(&vsllink_handle->libusb_ctx);
+
+ if (ERROR_OK != vsllink_usb_open(vsllink_handle)) {
+ 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",
+ versaloon_interface.usb_setting.vid,
+ versaloon_interface.usb_setting.pid);
+ versaloon_usb_device_handle = vsllink_handle->usb_device_handle;
- return ERROR_OK;
-}
+ if (ERROR_OK != versaloon_interface.init())
+ return ERROR_FAIL;
+ if (versaloon_interface.usb_setting.buf_size < 32) {
+ versaloon_interface.fini();
+ return ERROR_FAIL;
+ }
-/***************************************************************************/
-/* Queue command implementations */
-static int vsllink_disconnect(void)
-{
- vsllink_simple_command(VSLLINK_CMD_DISCONN);
return ERROR_OK;
}
-static int vsllink_connect(void)
+static int vsllink_init(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);
- }
+ int retval = vsllink_interface_init();
+ if (ERROR_OK != retval)
+ return retval;
+
+ versaloon_interface.adaptors.gpio.init(0);
+ versaloon_interface.adaptors.gpio.config(0, GPIO_SRST, 0, GPIO_SRST,
+ GPIO_SRST);
+ versaloon_interface.adaptors.delay.delayms(100);
+ versaloon_interface.adaptors.peripheral_commit();
+
+ if (swd_mode) {
+ versaloon_interface.adaptors.gpio.config(0, GPIO_TRST, 0,
+ GPIO_TRST, GPIO_TRST);
+ versaloon_interface.adaptors.swd.init(0);
+ vsllink_swd_frequency(NULL, jtag_get_speed_khz() * 1000);
+ vsllink_swd_switch_seq(NULL, JTAG_TO_SWD);
+
+ } else {
+ /* malloc buffer size for tap */
+ tap_buffer_size = versaloon_interface.usb_setting.buf_size / 2 - 32;
+ vsllink_free_buffer();
+ tdi_buffer = malloc(tap_buffer_size);
+ tdo_buffer = malloc(tap_buffer_size);
+ tms_buffer = malloc(tap_buffer_size);
+ if ((NULL == tdi_buffer) || (NULL == tdo_buffer) || (NULL == tms_buffer)) {
+ vsllink_quit();
+ return ERROR_FAIL;
+ }
+
+ versaloon_interface.adaptors.jtag_raw.init(0);
+ versaloon_interface.adaptors.jtag_raw.config(0, jtag_get_speed_khz());
+ versaloon_interface.adaptors.gpio.config(0, GPIO_SRST | GPIO_TRST,
+ GPIO_TRST, GPIO_SRST, GPIO_SRST);
+ }
+
+ if (ERROR_OK != versaloon_interface.adaptors.peripheral_commit())
+ return ERROR_FAIL;
+ vsllink_reset(0, 0);
+ vsllink_tap_init();
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;
-}
+/**************************************************************************
+ * Queue command implementations */
static void vsllink_end_state(tap_state_t state)
{
if (tap_is_state_stable(state))
- {
tap_set_end_state(state);
- }
- else
- {
+ 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)
+static void vsllink_state_move(void)
{
int i;
+ uint8_t tms_scan = tap_get_tms_path(tap_get_state(),
+ tap_get_end_state());
+ uint8_t tms_scan_bits = tap_get_tms_path_len(tap_get_state(),
+ tap_get_end_state());
- 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]);
- }
- }
+ for (i = 0; i < tms_scan_bits; i++)
+ vsllink_tap_append_step((tms_scan >> i) & 1, 0);
- tap_set_end_state(tap_get_state());
+ tap_set_state(tap_get_end_state());
}
-static void vsllink_stableclocks_normal(int num_cycles, int tms)
+static void vsllink_path_move(int num_states, tap_state_t *path)
{
- 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");
+ for (int i = 0; i < num_states; 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);
}
- }
- 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);
- }
+ tap_set_state(path[i]);
}
- 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;
+ tap_set_end_state(tap_get_state());
+}
+
+static void vsllink_tms(int num_bits, const uint8_t *bits)
+{
+ for (int i = 0; i < num_bits; i++)
+ vsllink_tap_append_step((bits[i / 8] >> (i % 8)) & 1, 0);
+}
- vsllink_tap_append_scan_normal(scan_size, buffer, command, 8);
+static void vsllink_stableclocks(int num_cycles, int tms)
+{
+ while (num_cycles > 0) {
+ vsllink_tap_append_step(tms, 0);
+ num_cycles--;
}
- vsllink_end_state(saved_end_state);
+}
- bits_left = scan_size & 0x07;
- tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE);
+static void vsllink_runtest(int num_cycles)
+{
+ tap_state_t saved_end_state = tap_get_end_state();
- 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_IDLE) {
+ /* enter IDLE state */
+ vsllink_end_state(TAP_IDLE);
+ vsllink_state_move();
}
- 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;
- }
+ vsllink_stableclocks(num_cycles, 0);
- tap_set_state(tap_get_end_state());
+ /* post-process */
+ /* set end_state */
+ vsllink_end_state(saved_end_state);
+ if (tap_get_end_state() != tap_get_end_state())
+ vsllink_state_move();
}
-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(bool ir_scan, enum scan_type type, uint8_t *buffer,
+ int scan_size, struct scan_command *command)
{
tap_state_t saved_end_state;
/* Move to appropriate scan state */
vsllink_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
- vsllink_state_move();
+ if (tap_get_state() != tap_get_end_state())
+ vsllink_state_move();
vsllink_end_state(saved_end_state);
/* Scan */
- vsllink_tap_append_scan_dma(scan_size, buffer, command);
+ vsllink_tap_append_scan(scan_size, buffer, command);
+
+ /* Goto Pause and record position to insert tms:0 */
+ vsllink_tap_append_step(0, 0);
+ vsllink_tms_offset = tap_length;
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;
- }
+ if (!srst)
+ versaloon_interface.adaptors.gpio.config(0, GPIO_SRST, 0, GPIO_SRST, GPIO_SRST);
+ else
+ versaloon_interface.adaptors.gpio.config(0, GPIO_SRST, GPIO_SRST, 0, 0);
- result = vsllink_usb_write(vsllink_handle, 3);
- if (result != 3)
- {
- LOG_ERROR("VSLLink command VSLLINK_CMD_SET_PORT failed (%d)", result);
+ if (!swd_mode) {
+ if (!trst)
+ versaloon_interface.adaptors.gpio.out(0, GPIO_TRST, GPIO_TRST);
+ else
+ versaloon_interface.adaptors.gpio.out(0, GPIO_TRST, 0);
}
-}
-
-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);
- }
+ versaloon_interface.adaptors.peripheral_commit();
}
-COMMAND_HANDLER(vsllink_handle_mode_command)
+COMMAND_HANDLER(vsllink_handle_usb_vid_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;
- }
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ COMMAND_PARSE_NUMBER(u16, CMD_ARGV[0],
+ versaloon_interface.usb_setting.vid);
return ERROR_OK;
}
-COMMAND_HANDLER(vsllink_handle_usb_vid_command)
+COMMAND_HANDLER(vsllink_handle_usb_pid_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_COMMAND_SYNTAX_ERROR;
+ COMMAND_PARSE_NUMBER(u16, CMD_ARGV[0],
+ versaloon_interface.usb_setting.pid);
return ERROR_OK;
}
-COMMAND_HANDLER(vsllink_handle_usb_pid_command)
+COMMAND_HANDLER(vsllink_handle_usb_serial_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);
+ if (CMD_ARGC > 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ free(versaloon_interface.usb_setting.serialstring);
+
+ if (CMD_ARGC == 1)
+ versaloon_interface.usb_setting.serialstring = strdup(CMD_ARGV[0]);
+ else
+ versaloon_interface.usb_setting.serialstring = NULL;
+
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;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
- COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0], vsllink_usb_bulkin);
+ COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0],
+ versaloon_interface.usb_setting.ep_in);
- vsllink_usb_bulkin |= 0x80;
+ versaloon_interface.usb_setting.ep_in |= 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;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
- COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0], vsllink_usb_bulkout);
+ COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0],
+ versaloon_interface.usb_setting.ep_out);
- vsllink_usb_bulkout &= ~0x80;
+ versaloon_interface.usb_setting.ep_out &= ~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;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
- COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0], vsllink_usb_interface);
+ COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0],
+ versaloon_interface.usb_setting.interface);
return ERROR_OK;
}
-/***************************************************************************/
-/* VSLLink tap functions */
+/**************************************************************************
+ * 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)
+static void vsllink_tap_init(void)
{
tap_length = 0;
pending_scan_results_length = 0;
+ vsllink_tms_offset = 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)
+static void vsllink_tap_ensure_pending(int scans)
{
- int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
- int available_bytes = tap_buffer_size * 8 - tap_length;
+ int available_scans =
+ MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
- if (scans > available_scans || length > available_bytes)
- {
+ if (scans > available_scans)
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;
- }
+ int index_var = tap_length / 8;
- if (tdi)
- {
- tdi_buffer[index] |= bit;
- }
- else
- {
- tdi_buffer[index] &= ~bit;
- }
+ int bit_index = tap_length % 8;
+ uint8_t bit = 1 << bit_index;
- tap_length++;
- }
+ if (tms)
+ tms_buffer[index_var] |= bit;
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;
+ tms_buffer[index_var] &= ~bit;
- if (offset > 0)
- {
- vsllink_usb_in_want_length += ((length + 7) >> 3) + 1;
- }
+ if (tdi)
+ tdi_buffer[index_var] |= bit;
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;
+ tdi_buffer[index_var] &= ~bit;
- for (i = 0; i < ((length + 7) >> 3); i++)
- {
- vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = buffer[i];
- }
+ tap_length++;
- pending_scan_results_length++;
+ if (tap_buffer_size * 8 <= tap_length)
+ vsllink_tap_execute();
}
-static void vsllink_tap_append_scan_dma(int length, uint8_t *buffer, struct scan_command *command)
+
+static void vsllink_tap_append_scan(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
- {
+ while (len_all < length) {
+ vsllink_tap_ensure_pending(1);
+ pending_scan_result =
+ &pending_scan_results_buffer[
+ pending_scan_results_length];
+
+ if ((length - len_all) > (tap_buffer_size * 8 - tap_length)) {
+ /* Use all memory available
+ vsllink_tap_append_step will commit automatically */
+ len_tmp = tap_buffer_size * 8 - tap_length;
+ pending_scan_result->last = false;
+ } else {
len_tmp = length - len_all;
+ pending_scan_result->last = true;
}
-
- 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->src_offset = tap_length;
+ pending_scan_result->dest_offset = len_all;
pending_scan_result->length = len_tmp;
pending_scan_result->command = command;
- pending_scan_result->buffer = buffer + len_all / 8;
+ pending_scan_result->buffer = buffer;
+ pending_scan_results_length++;
- 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);
+ 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)
+static int vsllink_jtag_execute(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 (tap_length <= 0)
+ return ERROR_OK;
- 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;
- }
- }
+ versaloon_interface.adaptors.jtag_raw.execute(0, tdi_buffer, tms_buffer,
+ tdo_buffer, tap_length);
- 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 = versaloon_interface.adaptors.peripheral_commit();
+
+ if (result == ERROR_OK) {
+ 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 src_first = pending_scan_result->src_offset;
+ int dest_first = pending_scan_result->dest_offset;
+ bool last = pending_scan_result->last;
+
+ struct scan_command *command;
+
+ command = pending_scan_result->command;
+ buf_set_buf(tdo_buffer, src_first, buffer, dest_first, length);
- 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);
+ DEBUG_JTAG_IO(
+ "JTAG scan read(%d bits, from src %d bits to dest %d bits):",
+ length, src_first, dest_first);
+ vsllink_debug_buffer(buffer + dest_first / 8,
+ DIV_ROUND_UP(length, 7));
#endif
- if (jtag_read_buffer(buffer, command) != ERROR_OK)
- {
- vsllink_tap_init();
- return ERROR_JTAG_QUEUE_FAILED;
- }
+ if (last) {
+ 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);
- 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();
+ } else {
+ LOG_ERROR("vsllink_jtag_execute failure");
+ return ERROR_JTAG_QUEUE_FAILED;
}
- reset_command_pointer();
+
+ vsllink_tap_init();
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;
+static int vsllink_tap_execute(void)
+{
+ if (swd_mode)
+ return ERROR_OK;
- memcpy(&vsllink_usb_out_buffer[3], tdi_buffer, byte_length);
- memcpy(&vsllink_usb_out_buffer[3 + byte_length], tms_buffer, byte_length);
+ return vsllink_jtag_execute();
+}
- 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;
+static int vsllink_swd_init(void)
+{
+ LOG_INFO("VSLLink SWD mode enabled");
+ swd_mode = true;
- struct scan_command *command = pending_scan_result->command;
- buf_set_buf(vsllink_usb_in_buffer, first, buffer, 0, length);
+ return ERROR_OK;
+}
- 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
+static int_least32_t vsllink_swd_frequency(struct adiv5_dap *dap,
+ int_least32_t hz)
+{
+ const int_least32_t delay2hz[] = {
+ 1850000, 235000, 130000, 102000, 85000, 72000
+ };
- if (jtag_read_buffer(buffer, command) != ERROR_OK)
- {
- vsllink_tap_init();
- return ERROR_JTAG_QUEUE_FAILED;
- }
+ if (hz > 0) {
+ uint16_t delay = UINT16_MAX;
- if (pending_scan_result->buffer != NULL)
- {
- free(pending_scan_result->buffer);
- }
+ for (uint16_t i = 0; i < ARRAY_SIZE(delay2hz); i++) {
+ if (hz >= delay2hz[i]) {
+ hz = delay2hz[i];
+ delay = i;
+ break;
}
}
- else
- {
- LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result, byte_length);
- return ERROR_JTAG_QUEUE_FAILED;
- }
- vsllink_tap_init();
+ if (delay == UINT16_MAX)
+ delay = (500000 / hz) - 1;
+
+ /* Calculate retry count after a WAIT response. This will give
+ * a retry timeout at about ~250 ms. 54 is the number of bits
+ * found in a transaction. */
+ uint16_t retry_count = 250 * hz / 1000 / 54;
+
+ LOG_DEBUG("SWD delay: %d, retry count: %d", delay, retry_count);
+
+ versaloon_interface.adaptors.swd.config(0, 2, retry_count, delay);
}
- return ERROR_OK;
+ return hz;
}
-/*****************************************************************************/
-/* VSLLink USB low-level functions */
-
-static struct vsllink* vsllink_usb_open(void)
+static int vsllink_swd_switch_seq(struct adiv5_dap *dap,
+ enum swd_special_seq seq)
{
- 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;
+ switch (seq) {
+ case LINE_RESET:
+ LOG_DEBUG("SWD line reset");
+ versaloon_interface.adaptors.swd.seqout(0, swd_seq_line_reset,
+ swd_seq_line_reset_len);
+ break;
+ case JTAG_TO_SWD:
+ LOG_DEBUG("JTAG-to-SWD");
+ versaloon_interface.adaptors.swd.seqout(0, swd_seq_jtag_to_swd,
+ swd_seq_jtag_to_swd_len);
+ break;
+ case SWD_TO_JTAG:
+ LOG_DEBUG("SWD-to-JTAG");
+ versaloon_interface.adaptors.swd.seqout(0, swd_seq_swd_to_jtag,
+ swd_seq_swd_to_jtag_len);
+ break;
+ default:
+ LOG_ERROR("Sequence %d not supported", seq);
+ return ERROR_FAIL;
}
-#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;
+ return ERROR_OK;
}
-static void vsllink_usb_close(struct vsllink *vsllink)
+static void vsllink_swd_read_reg(struct adiv5_dap *dap, uint8_t cmd,
+ uint32_t *value)
{
- 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);
- }
+ versaloon_interface.adaptors.swd.transact(0, cmd, value, NULL);
+}
- ret = usb_close(vsllink->usb_handle);
- if (ret != 0)
- {
- LOG_ERROR("fail to close usb, %d returned", ret);
- exit(-1);
- }
+static void vsllink_swd_write_reg(struct adiv5_dap *dap, uint8_t cmd,
+ uint32_t value)
+{
+ versaloon_interface.adaptors.swd.transact(0, cmd, &value, NULL);
+}
- free(vsllink);
+static int vsllink_swd_run_queue(struct adiv5_dap *dap)
+{
+ return versaloon_interface.adaptors.peripheral_commit();
}
-/* Send a message and receive the reply. */
-static int vsllink_usb_message(struct vsllink *vsllink, int out_length, int in_length)
+/****************************************************************************
+ * VSLLink USB low-level functions */
+
+static int vsllink_check_usb_strings(
+ struct libusb_device_handle *usb_device_handle,
+ struct libusb_device_descriptor *usb_desc)
{
- int result;
+ char desc_string[256];
+ int retval;
- 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;
+ if (NULL != versaloon_interface.usb_setting.serialstring) {
+ retval = libusb_get_string_descriptor_ascii(usb_device_handle,
+ usb_desc->iSerialNumber, (unsigned char *)desc_string,
+ sizeof(desc_string));
+ if (retval < 0)
+ return ERROR_FAIL;
+
+ if (strncmp(desc_string, versaloon_interface.usb_setting.serialstring,
+ sizeof(desc_string)))
+ return ERROR_FAIL;
}
+
+ retval = libusb_get_string_descriptor_ascii(usb_device_handle,
+ usb_desc->iProduct, (unsigned char *)desc_string,
+ sizeof(desc_string));
+ if (retval < 0)
+ return ERROR_FAIL;
+
+ if (strstr(desc_string, "Versaloon") == NULL)
+ return ERROR_FAIL;
+
+ return ERROR_OK;
}
-/* Write data from out_buffer to USB. */
-static int vsllink_usb_write(struct vsllink *vsllink, int out_length)
+static int vsllink_usb_open(struct vsllink *vsllink)
{
- int result;
+ ssize_t num_devices, i;
+ libusb_device **usb_devices;
+ struct libusb_device_descriptor usb_desc;
+ struct libusb_device_handle *usb_device_handle;
+ int retval;
- if (out_length > VSLLINK_BufferSize)
- {
- LOG_ERROR("vsllink_write illegal out_length=%d (max=%d)", out_length, VSLLINK_BufferSize);
- return -1;
- }
+ num_devices = libusb_get_device_list(vsllink->libusb_ctx, &usb_devices);
- result = usb_bulk_write(vsllink->usb_handle, vsllink_usb_bulkout, \
- (char *)vsllink_usb_out_buffer, out_length, VSLLINK_USB_TIMEOUT);
+ if (num_devices <= 0)
+ return ERROR_FAIL;
- DEBUG_JTAG_IO("vsllink_usb_write, out_length = %d, result = %d", out_length, result);
+ for (i = 0; i < num_devices; i++) {
+ libusb_device *device = usb_devices[i];
-#ifdef _DEBUG_USB_COMMS_
- LOG_DEBUG("USB out:");
- vsllink_debug_buffer(vsllink_usb_out_buffer, out_length);
-#endif
+ retval = libusb_get_device_descriptor(device, &usb_desc);
+ if (retval != 0)
+ continue;
-#ifdef _VSLLINK_IN_DEBUG_MODE_
- usleep(100000);
-#endif
+ if (usb_desc.idVendor != versaloon_interface.usb_setting.vid ||
+ usb_desc.idProduct != versaloon_interface.usb_setting.pid)
+ continue;
- return result;
-}
+ retval = libusb_open(device, &usb_device_handle);
+ if (retval != 0)
+ continue;
-/* 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);
+ retval = vsllink_check_usb_strings(usb_device_handle, &usb_desc);
+ if (ERROR_OK == retval)
+ break;
+
+ libusb_close(usb_device_handle);
+ }
- DEBUG_JTAG_IO("vsllink_usb_read, result = %d", result);
+ libusb_free_device_list(usb_devices, 1);
-#ifdef _DEBUG_USB_COMMS_
- LOG_DEBUG("USB in:");
- vsllink_debug_buffer(vsllink_usb_in_buffer, result);
-#endif
- return result;
+ if (i == num_devices)
+ return ERROR_FAIL;
+
+ retval = libusb_claim_interface(usb_device_handle,
+ versaloon_interface.usb_setting.interface);
+ if (retval != 0) {
+ LOG_ERROR("unable to claim interface");
+ libusb_close(usb_device_handle);
+ return ERROR_FAIL;
+ }
+
+ vsllink->usb_device_handle = usb_device_handle;
+ return ERROR_OK;
+}
+
+static void vsllink_usb_close(struct vsllink *vsllink)
+{
+ libusb_release_interface(vsllink->usb_device_handle,
+ versaloon_interface.usb_setting.interface);
+ libusb_close(vsllink->usb_device_handle);
}
#define BYTES_PER_LINE 16
-#if defined _DEBUG_USB_COMMS_ || defined _DEBUG_JTAG_IO_
+#if defined _DEBUG_JTAG_IO_
static void vsllink_debug_buffer(uint8_t *buffer, int length)
{
char line[81];
int i;
int j;
- for (i = 0; i < length; i += BYTES_PER_LINE)
- {
+ 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++)
- {
+ 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_
+#endif /* _DEBUG_JTAG_IO_ */
static const struct command_registration vsllink_command_handlers[] = {
{
.handler = &vsllink_handle_usb_pid_command,
.mode = COMMAND_CONFIG,
},
+ {
+ .name = "vsllink_usb_serial",
+ .handler = &vsllink_handle_usb_serial_command,
+ .mode = COMMAND_CONFIG,
+ },
{
.name = "vsllink_usb_bulkin",
.handler = &vsllink_handle_usb_bulkin_command,
.handler = &vsllink_handle_usb_interface_command,
.mode = COMMAND_CONFIG,
},
- {
- .name = "vsllink_mode",
- .handler = &vsllink_handle_mode_command,
- .mode = COMMAND_CONFIG,
- },
COMMAND_REGISTRATION_DONE
};
+static const char * const vsllink_transports[] = {"jtag", "swd", NULL};
+
+static const struct swd_driver vsllink_swd_driver = {
+ .init = vsllink_swd_init,
+ .frequency = vsllink_swd_frequency,
+ .switch_seq = vsllink_swd_switch_seq,
+ .read_reg = vsllink_swd_read_reg,
+ .write_reg = vsllink_swd_write_reg,
+ .run = vsllink_swd_run_queue,
+};
+
struct jtag_interface vsllink_interface = {
.name = "vsllink",
+ .supported = DEBUG_CAP_TMS_SEQ,
.commands = vsllink_command_handlers,
+ .transports = vsllink_transports,
+ .swd = &vsllink_swd_driver,
.init = vsllink_init,
.quit = vsllink_quit,
projects / openocd / blobdiff