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- /***************************************************************************
- * Copyright (C) 2007 by Juergen Stuber <juergen@jstuber.net> *
- * based on Dominic Rath's and Benedikt Sauter's usbprog.c *
- * *
- * Copyright (C) 2008 by Spencer Oliver *
- * spen@spen-soft.co.uk *
- * *
- * Copyright (C) 2011 by Jean-Christophe PLAGNIOL-VIILARD *
- * plagnioj@jcrosoft.com *
- * *
- * Copyright (C) 2015 by Marc Schink *
- * openocd-dev@marcschink.de *
- * *
- * Copyright (C) 2015 by Paul Fertser *
- * fercerpav@gmail.com *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program. If not, see <http://www.gnu.org/licenses/>. *
- ***************************************************************************/
-
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #include <stdint.h>
- #include <math.h>
-
- #include <jtag/interface.h>
- #include <jtag/swd.h>
- #include <jtag/commands.h>
- #include <jtag/drivers/jtag_usb_common.h>
- #include <target/cortex_m.h>
-
- #include <libjaylink/libjaylink.h>
-
- static struct jaylink_context *jayctx;
- static struct jaylink_device_handle *devh;
- static struct jaylink_connection conn;
- static struct jaylink_connection connlist[JAYLINK_MAX_CONNECTIONS];
- static enum jaylink_jtag_version jtag_command_version;
- static uint8_t caps[JAYLINK_DEV_EXT_CAPS_SIZE];
-
- static uint32_t serial_number;
- static bool use_serial_number;
- static bool use_usb_location;
- static enum jaylink_usb_address usb_address;
- static bool use_usb_address;
- static enum jaylink_target_interface iface = JAYLINK_TIF_JTAG;
- static bool trace_enabled;
-
- #define JLINK_MAX_SPEED 12000
- #define JLINK_TAP_BUFFER_SIZE 2048
-
- static unsigned int swd_buffer_size = JLINK_TAP_BUFFER_SIZE;
-
- /* Maximum SWO frequency deviation. */
- #define SWO_MAX_FREQ_DEV 0.03
-
- /* 256 byte non-volatile memory */
- struct device_config {
- uint8_t usb_address;
- /* 0ffset 0x01 to 0x03 */
- uint8_t reserved_1[3];
- uint32_t target_power;
- /* 0ffset 0x08 to 0x1f */
- uint8_t reserved_2[24];
- /* IP only for J-Link Pro */
- uint8_t ip_address[4];
- uint8_t subnet_mask[4];
- /* 0ffset 0x28 to 0x2f */
- uint8_t reserved_3[8];
- uint8_t mac_address[6];
- /* 0ffset 0x36 to 0xff */
- uint8_t reserved_4[202];
- } __attribute__ ((packed));
-
- static struct device_config config;
- static struct device_config tmp_config;
-
- /* Queue command functions */
- static void jlink_end_state(tap_state_t state);
- static void jlink_state_move(void);
- static void jlink_path_move(int num_states, tap_state_t *path);
- static void jlink_stableclocks(int num_cycles);
- static void jlink_runtest(int num_cycles);
- static void jlink_reset(int trst, int srst);
- static int jlink_reset_safe(int trst, int srst);
- static int jlink_swd_run_queue(void);
- static void jlink_swd_queue_cmd(uint8_t cmd, uint32_t *dst, uint32_t data, uint32_t ap_delay_clk);
- static int jlink_swd_switch_seq(enum swd_special_seq seq);
-
- /* J-Link tap buffer functions */
- static void jlink_tap_init(void);
- static int jlink_flush(void);
- /**
- * Queue data to go out and in, flushing the queue as many times as
- * necessary.
- *
- * @param out A pointer to TDI data, if NULL, old stale data will be used.
- * @param out_offset A bit offset for TDI data.
- * @param tms_out A pointer to TMS data, if NULL, zeroes will be emitted.
- * @param tms_offset A bit offset for TMS data.
- * @param in A pointer to store TDO data to, if NULL the data will be discarded.
- * @param in_offset A bit offset for TDO data.
- * @param length Amount of bits to transfer out and in.
- *
- * @retval This function doesn't return any value.
- */
- static void jlink_clock_data(const uint8_t *out, unsigned out_offset,
- const uint8_t *tms_out, unsigned tms_offset,
- uint8_t *in, unsigned in_offset,
- unsigned length);
-
- static enum tap_state jlink_last_state = TAP_RESET;
- static int queued_retval;
-
- /***************************************************************************/
- /* External interface implementation */
-
- static void jlink_execute_stableclocks(struct jtag_command *cmd)
- {
- LOG_DEBUG_IO("stableclocks %i cycles", cmd->cmd.runtest->num_cycles);
- jlink_stableclocks(cmd->cmd.runtest->num_cycles);
- }
-
- static void jlink_execute_runtest(struct jtag_command *cmd)
- {
- LOG_DEBUG_IO("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles,
- cmd->cmd.runtest->end_state);
-
- jlink_end_state(cmd->cmd.runtest->end_state);
- jlink_runtest(cmd->cmd.runtest->num_cycles);
- }
-
- static void jlink_execute_statemove(struct jtag_command *cmd)
- {
- LOG_DEBUG_IO("statemove end in %i", cmd->cmd.statemove->end_state);
-
- jlink_end_state(cmd->cmd.statemove->end_state);
- jlink_state_move();
- }
-
- static void jlink_execute_pathmove(struct jtag_command *cmd)
- {
- LOG_DEBUG_IO("pathmove: %i states, end in %i",
- cmd->cmd.pathmove->num_states,
- cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
-
- jlink_path_move(cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path);
- }
-
- static void jlink_execute_scan(struct jtag_command *cmd)
- {
- LOG_DEBUG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN",
- jtag_scan_type(cmd->cmd.scan));
-
- /* Make sure there are no trailing fields with num_bits == 0, or the logic below will fail. */
- while (cmd->cmd.scan->num_fields > 0
- && cmd->cmd.scan->fields[cmd->cmd.scan->num_fields - 1].num_bits == 0) {
- cmd->cmd.scan->num_fields--;
- LOG_DEBUG("discarding trailing empty field");
- }
-
- if (cmd->cmd.scan->num_fields == 0) {
- LOG_DEBUG("empty scan, doing nothing");
- return;
- }
-
- if (cmd->cmd.scan->ir_scan) {
- if (tap_get_state() != TAP_IRSHIFT) {
- jlink_end_state(TAP_IRSHIFT);
- jlink_state_move();
- }
- } else {
- if (tap_get_state() != TAP_DRSHIFT) {
- jlink_end_state(TAP_DRSHIFT);
- jlink_state_move();
- }
- }
-
- jlink_end_state(cmd->cmd.scan->end_state);
-
- struct scan_field *field = cmd->cmd.scan->fields;
- unsigned scan_size = 0;
-
- for (int i = 0; i < cmd->cmd.scan->num_fields; i++, field++) {
- scan_size += field->num_bits;
- LOG_DEBUG_IO("%s%s field %d/%d %d bits",
- field->in_value ? "in" : "",
- field->out_value ? "out" : "",
- i,
- cmd->cmd.scan->num_fields,
- field->num_bits);
-
- if (i == cmd->cmd.scan->num_fields - 1 && tap_get_state() != tap_get_end_state()) {
- /* Last field, and we're leaving IRSHIFT/DRSHIFT. Clock last bit during tap
- * movement. This last field can't have length zero, it was checked above. */
- jlink_clock_data(field->out_value,
- 0,
- NULL,
- 0,
- field->in_value,
- 0,
- field->num_bits - 1);
- uint8_t last_bit = 0;
- if (field->out_value)
- bit_copy(&last_bit, 0, field->out_value, field->num_bits - 1, 1);
- uint8_t tms_bits = 0x01;
- jlink_clock_data(&last_bit,
- 0,
- &tms_bits,
- 0,
- field->in_value,
- field->num_bits - 1,
- 1);
- tap_set_state(tap_state_transition(tap_get_state(), 1));
- jlink_clock_data(NULL,
- 0,
- &tms_bits,
- 1,
- NULL,
- 0,
- 1);
- tap_set_state(tap_state_transition(tap_get_state(), 0));
- } else
- jlink_clock_data(field->out_value,
- 0,
- NULL,
- 0,
- field->in_value,
- 0,
- field->num_bits);
- }
-
- if (tap_get_state() != tap_get_end_state()) {
- jlink_end_state(tap_get_end_state());
- jlink_state_move();
- }
-
- LOG_DEBUG_IO("%s scan, %i bits, end in %s",
- (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size,
- tap_state_name(tap_get_end_state()));
- }
-
- static void jlink_execute_sleep(struct jtag_command *cmd)
- {
- LOG_DEBUG_IO("sleep %" PRIi32 "", cmd->cmd.sleep->us);
- jlink_flush();
- jtag_sleep(cmd->cmd.sleep->us);
- }
-
- static int jlink_execute_command(struct jtag_command *cmd)
- {
- switch (cmd->type) {
- case JTAG_STABLECLOCKS:
- jlink_execute_stableclocks(cmd);
- break;
- case JTAG_RUNTEST:
- jlink_execute_runtest(cmd);
- break;
- case JTAG_TLR_RESET:
- jlink_execute_statemove(cmd);
- break;
- case JTAG_PATHMOVE:
- jlink_execute_pathmove(cmd);
- break;
- case JTAG_SCAN:
- jlink_execute_scan(cmd);
- break;
- case JTAG_SLEEP:
- jlink_execute_sleep(cmd);
- break;
- default:
- LOG_ERROR("BUG: Unknown JTAG command type encountered.");
- return ERROR_JTAG_QUEUE_FAILED;
- }
-
- return ERROR_OK;
- }
-
- static int jlink_execute_queue(void)
- {
- int ret;
- struct jtag_command *cmd = jtag_command_queue;
-
- while (cmd != NULL) {
- ret = jlink_execute_command(cmd);
-
- if (ret != ERROR_OK)
- return ret;
-
- cmd = cmd->next;
- }
-
- return jlink_flush();
- }
-
- static int jlink_speed(int speed)
- {
- int ret;
- struct jaylink_speed tmp;
- int max_speed;
-
- if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_SPEEDS)) {
- ret = jaylink_get_speeds(devh, &tmp);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_get_speeds() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- tmp.freq /= 1000;
- max_speed = tmp.freq / tmp.div;
- } else {
- max_speed = JLINK_MAX_SPEED;
- }
-
- if (!speed) {
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_ADAPTIVE_CLOCKING)) {
- LOG_ERROR("Adaptive clocking is not supported by the device.");
- return ERROR_JTAG_NOT_IMPLEMENTED;
- }
-
- speed = JAYLINK_SPEED_ADAPTIVE_CLOCKING;
- } else if (speed > max_speed) {
- LOG_INFO("Reduced speed from %d kHz to %d kHz (maximum).", speed,
- max_speed);
- speed = max_speed;
- }
-
- ret = jaylink_set_speed(devh, speed);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_set_speed() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- return ERROR_OK;
- }
-
- static int jlink_speed_div(int speed, int *khz)
- {
- *khz = speed;
-
- return ERROR_OK;
- }
-
- static int jlink_khz(int khz, int *jtag_speed)
- {
- *jtag_speed = khz;
-
- return ERROR_OK;
- }
-
- static bool read_device_config(struct device_config *cfg)
- {
- int ret;
-
- ret = jaylink_read_raw_config(devh, (uint8_t *)cfg);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_read_raw_config() failed: %s.",
- jaylink_strerror(ret));
- return false;
- }
-
- if (cfg->usb_address == 0xff)
- cfg->usb_address = 0x00;
-
- if (cfg->target_power == 0xffffffff)
- cfg->target_power = 0;
-
- return true;
- }
-
- static int select_interface(void)
- {
- int ret;
- uint32_t interfaces;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SELECT_TIF)) {
- if (iface != JAYLINK_TIF_JTAG) {
- LOG_ERROR("Device supports JTAG transport only.");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- return ERROR_OK;
- }
-
- ret = jaylink_get_available_interfaces(devh, &interfaces);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_get_available_interfaces() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_JTAG_INIT_FAILED;
- }
-
- if (!(interfaces & (1 << iface))) {
- LOG_ERROR("Selected transport is not supported by the device.");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- ret = jaylink_select_interface(devh, iface, NULL);
-
- if (ret < 0) {
- LOG_ERROR("jaylink_select_interface() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_JTAG_INIT_FAILED;
- }
-
- return ERROR_OK;
- }
-
- static int jlink_register(void)
- {
- int ret;
- size_t i;
- bool handle_found;
- size_t count;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_REGISTER))
- return ERROR_OK;
-
- ret = jaylink_register(devh, &conn, connlist, &count);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_register() failed: %s.", jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- handle_found = false;
-
- for (i = 0; i < count; i++) {
- if (connlist[i].handle == conn.handle) {
- handle_found = true;
- break;
- }
- }
-
- if (!handle_found) {
- LOG_ERROR("Registration failed: maximum number of connections on the "
- "device reached.");
- return ERROR_FAIL;
- }
-
- return ERROR_OK;
- }
-
- /*
- * Adjust the SWD transaction buffer size depending on the free device internal
- * memory. This ensures that the SWD transactions sent to the device do not
- * exceed the internal memory of the device.
- */
- static bool adjust_swd_buffer_size(void)
- {
- int ret;
- uint32_t tmp;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_FREE_MEMORY))
- return true;
-
- ret = jaylink_get_free_memory(devh, &tmp);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_get_free_memory() failed: %s.",
- jaylink_strerror(ret));
- return false;
- }
-
- if (tmp < 143) {
- LOG_ERROR("Not enough free device internal memory: %u bytes.", tmp);
- return false;
- }
-
- tmp = MIN(JLINK_TAP_BUFFER_SIZE, (tmp - 16) / 2);
-
- if (tmp != swd_buffer_size) {
- swd_buffer_size = tmp;
- LOG_DEBUG("Adjusted SWD transaction buffer size to %u bytes.",
- swd_buffer_size);
- }
-
- return true;
- }
-
- static int jaylink_log_handler(const struct jaylink_context *ctx,
- enum jaylink_log_level level, const char *format, va_list args,
- void *user_data)
- {
- enum log_levels tmp;
-
- switch (level) {
- case JAYLINK_LOG_LEVEL_ERROR:
- tmp = LOG_LVL_ERROR;
- break;
- case JAYLINK_LOG_LEVEL_WARNING:
- tmp = LOG_LVL_WARNING;
- break;
- /*
- * Forward info messages to the debug output because they are more verbose
- * than info messages of OpenOCD.
- */
- case JAYLINK_LOG_LEVEL_INFO:
- case JAYLINK_LOG_LEVEL_DEBUG:
- tmp = LOG_LVL_DEBUG;
- break;
- case JAYLINK_LOG_LEVEL_DEBUG_IO:
- tmp = LOG_LVL_DEBUG_IO;
- break;
- default:
- tmp = LOG_LVL_WARNING;
- }
-
- log_vprintf_lf(tmp, __FILE__, __LINE__, __func__, format, args);
-
- return 0;
- }
-
- static bool jlink_usb_location_equal(struct jaylink_device *dev)
- {
- int retval;
- uint8_t bus;
- uint8_t *ports;
- size_t num_ports;
- bool equal = false;
-
- retval = jaylink_device_get_usb_bus_ports(dev, &bus, &ports, &num_ports);
-
- if (retval == JAYLINK_ERR_NOT_SUPPORTED) {
- return false;
- } else if (retval != JAYLINK_OK) {
- LOG_WARNING("jaylink_device_get_usb_bus_ports() failed: %s.",
- jaylink_strerror(retval));
- return false;
- }
-
- equal = jtag_usb_location_equal(bus, ports, num_ports);
- free(ports);
-
- return equal;
- }
-
-
- static int jlink_init(void)
- {
- int ret;
- struct jaylink_device **devs;
- unsigned int i;
- bool found_device;
- uint32_t tmp;
- char *firmware_version;
- struct jaylink_hardware_version hwver;
- struct jaylink_hardware_status hwstatus;
- enum jaylink_usb_address address;
- size_t length;
- size_t num_devices;
- uint32_t host_interfaces;
-
- LOG_DEBUG("Using libjaylink %s (compiled with %s).",
- jaylink_version_package_get_string(), JAYLINK_VERSION_PACKAGE_STRING);
-
- if (!jaylink_library_has_cap(JAYLINK_CAP_HIF_USB) && use_usb_address) {
- LOG_ERROR("J-Link driver does not support USB devices.");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- ret = jaylink_init(&jayctx);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_init() failed: %s.", jaylink_strerror(ret));
- return ERROR_JTAG_INIT_FAILED;
- }
-
- ret = jaylink_log_set_callback(jayctx, &jaylink_log_handler, NULL);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_log_set_callback() failed: %s.",
- jaylink_strerror(ret));
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- host_interfaces = JAYLINK_HIF_USB;
-
- if (use_serial_number)
- host_interfaces |= JAYLINK_HIF_TCP;
-
- ret = jaylink_discovery_scan(jayctx, host_interfaces);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_discovery_scan() failed: %s.",
- jaylink_strerror(ret));
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- ret = jaylink_get_devices(jayctx, &devs, &num_devices);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_get_devices() failed: %s.", jaylink_strerror(ret));
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- use_usb_location = (jtag_usb_get_location() != NULL);
-
- if (!use_serial_number && !use_usb_address && !use_usb_location && num_devices > 1) {
- LOG_ERROR("Multiple devices found, specify the desired device.");
- jaylink_free_devices(devs, true);
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- found_device = false;
-
- for (i = 0; devs[i]; i++) {
- struct jaylink_device *dev = devs[i];
-
- if (use_serial_number) {
- ret = jaylink_device_get_serial_number(dev, &tmp);
-
- if (ret == JAYLINK_ERR_NOT_AVAILABLE) {
- continue;
- } else if (ret != JAYLINK_OK) {
- LOG_WARNING("jaylink_device_get_serial_number() failed: %s.",
- jaylink_strerror(ret));
- continue;
- }
-
- if (serial_number != tmp)
- continue;
- }
-
- if (use_usb_address) {
- ret = jaylink_device_get_usb_address(dev, &address);
-
- if (ret == JAYLINK_ERR_NOT_SUPPORTED) {
- continue;
- } else if (ret != JAYLINK_OK) {
- LOG_WARNING("jaylink_device_get_usb_address() failed: %s.",
- jaylink_strerror(ret));
- continue;
- }
-
- if (usb_address != address)
- continue;
- }
-
- if (use_usb_location && !jlink_usb_location_equal(dev))
- continue;
-
- ret = jaylink_open(dev, &devh);
-
- if (ret == JAYLINK_OK) {
- found_device = true;
- break;
- }
-
- LOG_ERROR("Failed to open device: %s.", jaylink_strerror(ret));
- }
-
- jaylink_free_devices(devs, true);
-
- if (!found_device) {
- LOG_ERROR("No J-Link device found.");
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- /*
- * Be careful with changing the following initialization sequence because
- * some devices are known to be sensitive regarding the order.
- */
-
- ret = jaylink_get_firmware_version(devh, &firmware_version, &length);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_get_firmware_version() failed: %s.",
- jaylink_strerror(ret));
- jaylink_close(devh);
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- } else if (length > 0) {
- LOG_INFO("%s", firmware_version);
- free(firmware_version);
- } else {
- LOG_WARNING("Device responds empty firmware version string.");
- }
-
- memset(caps, 0, JAYLINK_DEV_EXT_CAPS_SIZE);
- ret = jaylink_get_caps(devh, caps);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_get_caps() failed: %s.", jaylink_strerror(ret));
- jaylink_close(devh);
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_EXT_CAPS)) {
- ret = jaylink_get_extended_caps(devh, caps);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_get_extended_caps() failed: %s.",
- jaylink_strerror(ret));
- jaylink_close(devh);
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
- }
-
- jtag_command_version = JAYLINK_JTAG_VERSION_2;
-
- if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_HW_VERSION)) {
- ret = jaylink_get_hardware_version(devh, &hwver);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("Failed to retrieve hardware version: %s.",
- jaylink_strerror(ret));
- jaylink_close(devh);
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- LOG_INFO("Hardware version: %u.%02u", hwver.major, hwver.minor);
-
- if (hwver.major >= 5)
- jtag_command_version = JAYLINK_JTAG_VERSION_3;
- }
-
- if (iface == JAYLINK_TIF_SWD) {
- /*
- * Adjust the SWD transaction buffer size in case there is already
- * allocated memory on the device. This happens for example if the
- * memory for SWO capturing is still allocated because the software
- * which used the device before has not been shut down properly.
- */
- if (!adjust_swd_buffer_size()) {
- jaylink_close(devh);
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
- }
-
- if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
- if (!read_device_config(&config)) {
- LOG_ERROR("Failed to read device configuration data.");
- jaylink_close(devh);
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- memcpy(&tmp_config, &config, sizeof(struct device_config));
- }
-
- ret = jaylink_get_hardware_status(devh, &hwstatus);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_get_hardware_status() failed: %s.",
- jaylink_strerror(ret));
- jaylink_close(devh);
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- LOG_INFO("VTarget = %u.%03u V", hwstatus.target_voltage / 1000,
- hwstatus.target_voltage % 1000);
-
- conn.handle = 0;
- conn.pid = 0;
- strcpy(conn.hid, "0.0.0.0");
- conn.iid = 0;
- conn.cid = 0;
-
- ret = jlink_register();
-
- if (ret != ERROR_OK) {
- jaylink_close(devh);
- jaylink_exit(jayctx);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- ret = select_interface();
-
- if (ret != ERROR_OK) {
- jaylink_close(devh);
- jaylink_exit(jayctx);
- return ret;
- }
-
- jlink_reset(0, 0);
- jtag_sleep(3000);
- jlink_tap_init();
-
- jlink_speed(jtag_get_speed_khz());
-
- if (iface == JAYLINK_TIF_JTAG) {
- /*
- * J-Link devices with firmware version v5 and v6 seems to have an issue
- * if the first tap move is not divisible by 8, so we send a TLR on
- * first power up.
- */
- uint8_t tms = 0xff;
- jlink_clock_data(NULL, 0, &tms, 0, NULL, 0, 8);
-
- jlink_flush();
- }
-
- return ERROR_OK;
- }
-
- static int jlink_quit(void)
- {
- int ret;
- size_t count;
-
- if (trace_enabled) {
- ret = jaylink_swo_stop(devh);
-
- if (ret != JAYLINK_OK)
- LOG_ERROR("jaylink_swo_stop() failed: %s.", jaylink_strerror(ret));
- }
-
- if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_REGISTER)) {
- ret = jaylink_unregister(devh, &conn, connlist, &count);
-
- if (ret != JAYLINK_OK)
- LOG_ERROR("jaylink_unregister() failed: %s.",
- jaylink_strerror(ret));
- }
-
- jaylink_close(devh);
- jaylink_exit(jayctx);
-
- return ERROR_OK;
- }
-
- /***************************************************************************/
- /* Queue command implementations */
-
- static void jlink_end_state(tap_state_t state)
- {
- if (tap_is_state_stable(state))
- tap_set_end_state(state);
- else {
- LOG_ERROR("BUG: %i is not a valid end state", state);
- exit(-1);
- }
- }
-
- /* Goes to the end state. */
- static void jlink_state_move(void)
- {
- uint8_t tms_scan;
- uint8_t tms_scan_bits;
-
- tms_scan = tap_get_tms_path(tap_get_state(), tap_get_end_state());
- tms_scan_bits = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
-
- jlink_clock_data(NULL, 0, &tms_scan, 0, NULL, 0, tms_scan_bits);
-
- tap_set_state(tap_get_end_state());
- }
-
- static void jlink_path_move(int num_states, tap_state_t *path)
- {
- int i;
- uint8_t tms = 0xff;
-
- for (i = 0; i < num_states; i++) {
- if (path[i] == tap_state_transition(tap_get_state(), false))
- jlink_clock_data(NULL, 0, NULL, 0, NULL, 0, 1);
- else if (path[i] == tap_state_transition(tap_get_state(), true))
- jlink_clock_data(NULL, 0, &tms, 0, NULL, 0, 1);
- 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]);
- }
-
- tap_set_end_state(tap_get_state());
- }
-
- static void jlink_stableclocks(int num_cycles)
- {
- int i;
-
- uint8_t tms = tap_get_state() == TAP_RESET;
- /* Execute num_cycles. */
- for (i = 0; i < num_cycles; i++)
- jlink_clock_data(NULL, 0, &tms, 0, NULL, 0, 1);
- }
-
- static void jlink_runtest(int num_cycles)
- {
- tap_state_t saved_end_state = tap_get_end_state();
-
- /* Only do a state_move when we're not already in IDLE. */
- if (tap_get_state() != TAP_IDLE) {
- jlink_end_state(TAP_IDLE);
- jlink_state_move();
- /* num_cycles--; */
- }
-
- jlink_stableclocks(num_cycles);
-
- /* Finish in end_state. */
- jlink_end_state(saved_end_state);
-
- if (tap_get_state() != tap_get_end_state())
- jlink_state_move();
- }
-
- static void jlink_reset(int trst, int srst)
- {
- LOG_DEBUG("TRST: %i, SRST: %i.", trst, srst);
-
- /* Signals are active low. */
- if (srst == 0)
- jaylink_set_reset(devh);
-
- if (srst == 1)
- jaylink_clear_reset(devh);
-
- if (trst == 1)
- jaylink_jtag_clear_trst(devh);
-
- if (trst == 0)
- jaylink_jtag_set_trst(devh);
- }
-
- static int jlink_reset_safe(int trst, int srst)
- {
- jlink_flush();
- jlink_reset(trst, srst);
- return jlink_flush();
- }
-
- COMMAND_HANDLER(jlink_usb_command)
- {
- int tmp;
-
- if (CMD_ARGC != 1) {
- command_print(CMD, "Need exactly one argument for jlink usb.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- if (sscanf(CMD_ARGV[0], "%i", &tmp) != 1) {
- command_print(CMD, "Invalid USB address: %s.", CMD_ARGV[0]);
- return ERROR_FAIL;
- }
-
- if (tmp < JAYLINK_USB_ADDRESS_0 || tmp > JAYLINK_USB_ADDRESS_3) {
- command_print(CMD, "Invalid USB address: %s.", CMD_ARGV[0]);
- return ERROR_FAIL;
- }
-
- usb_address = tmp;
-
- use_serial_number = false;
- use_usb_address = true;
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_serial_command)
- {
- int ret;
-
- if (CMD_ARGC != 1) {
- command_print(CMD, "Need exactly one argument for jlink serial.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- ret = jaylink_parse_serial_number(CMD_ARGV[0], &serial_number);
-
- if (ret == JAYLINK_ERR) {
- command_print(CMD, "Invalid serial number: %s.", CMD_ARGV[0]);
- return ERROR_FAIL;
- } else if (ret != JAYLINK_OK) {
- command_print(CMD, "jaylink_parse_serial_number() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- use_serial_number = true;
- use_usb_address = false;
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_hwstatus_command)
- {
- int ret;
- struct jaylink_hardware_status status;
-
- ret = jaylink_get_hardware_status(devh, &status);
-
- if (ret != JAYLINK_OK) {
- command_print(CMD, "jaylink_get_hardware_status() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- command_print(CMD, "VTarget = %u.%03u V",
- status.target_voltage / 1000, status.target_voltage % 1000);
-
- command_print(CMD, "TCK = %u TDI = %u TDO = %u TMS = %u SRST = %u "
- "TRST = %u", status.tck, status.tdi, status.tdo, status.tms,
- status.tres, status.trst);
-
- if (status.target_voltage < 1500)
- command_print(CMD, "Target voltage too low. Check target power.");
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_free_memory_command)
- {
- int ret;
- uint32_t tmp;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_FREE_MEMORY)) {
- command_print(CMD, "Retrieval of free memory is not supported by "
- "the device.");
- return ERROR_OK;
- }
-
- ret = jaylink_get_free_memory(devh, &tmp);
-
- if (ret != JAYLINK_OK) {
- command_print(CMD, "jaylink_get_free_memory() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- command_print(CMD, "Device has %u bytes of free memory.", tmp);
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_jlink_jtag_command)
- {
- int tmp;
- int version;
-
- if (!CMD_ARGC) {
- switch (jtag_command_version) {
- case JAYLINK_JTAG_VERSION_2:
- version = 2;
- break;
- case JAYLINK_JTAG_VERSION_3:
- version = 3;
- break;
- default:
- return ERROR_FAIL;
- }
-
- command_print(CMD, "JTAG command version: %i", version);
- } else if (CMD_ARGC == 1) {
- if (sscanf(CMD_ARGV[0], "%i", &tmp) != 1) {
- command_print(CMD, "Invalid argument: %s.", CMD_ARGV[0]);
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- switch (tmp) {
- case 2:
- jtag_command_version = JAYLINK_JTAG_VERSION_2;
- break;
- case 3:
- jtag_command_version = JAYLINK_JTAG_VERSION_3;
- break;
- default:
- command_print(CMD, "Invalid argument: %s.", CMD_ARGV[0]);
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
- } else {
- command_print(CMD, "Need exactly one argument for jlink jtag.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_target_power_command)
- {
- int ret;
- int enable;
-
- if (CMD_ARGC != 1) {
- command_print(CMD, "Need exactly one argument for jlink "
- "targetpower.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SET_TARGET_POWER)) {
- command_print(CMD, "Target power supply is not supported by the "
- "device.");
- return ERROR_OK;
- }
-
- if (!strcmp(CMD_ARGV[0], "on")) {
- enable = true;
- } else if (!strcmp(CMD_ARGV[0], "off")) {
- enable = false;
- } else {
- command_print(CMD, "Invalid argument: %s.", CMD_ARGV[0]);
- return ERROR_FAIL;
- }
-
- ret = jaylink_set_target_power(devh, enable);
-
- if (ret != JAYLINK_OK) {
- command_print(CMD, "jaylink_set_target_power() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- return ERROR_OK;
- }
-
- static void show_config_usb_address(struct command_invocation *cmd)
- {
- if (config.usb_address != tmp_config.usb_address)
- command_print(cmd, "USB address: %u [%u]", config.usb_address,
- tmp_config.usb_address);
- else
- command_print(cmd, "USB address: %u", config.usb_address);
- }
-
- static void show_config_ip_address(struct command_invocation *cmd)
- {
- if (!memcmp(config.ip_address, tmp_config.ip_address, 4))
- command_print(cmd, "IP address: %d.%d.%d.%d",
- config.ip_address[3], config.ip_address[2],
- config.ip_address[1], config.ip_address[0]);
- else
- command_print(cmd, "IP address: %d.%d.%d.%d [%d.%d.%d.%d]",
- config.ip_address[3], config.ip_address[2],
- config.ip_address[1], config.ip_address[0],
- tmp_config.ip_address[3], tmp_config.ip_address[2],
- tmp_config.ip_address[1], tmp_config.ip_address[0]);
-
- if (!memcmp(config.subnet_mask, tmp_config.subnet_mask, 4))
- command_print(cmd, "Subnet mask: %d.%d.%d.%d",
- config.subnet_mask[3], config.subnet_mask[2],
- config.subnet_mask[1], config.subnet_mask[0]);
- else
- command_print(cmd, "Subnet mask: %d.%d.%d.%d [%d.%d.%d.%d]",
- config.subnet_mask[3], config.subnet_mask[2],
- config.subnet_mask[1], config.subnet_mask[0],
- tmp_config.subnet_mask[3], tmp_config.subnet_mask[2],
- tmp_config.subnet_mask[1], tmp_config.subnet_mask[0]);
- }
-
- static void show_config_mac_address(struct command_invocation *cmd)
- {
- if (!memcmp(config.mac_address, tmp_config.mac_address, 6))
- command_print(cmd, "MAC address: %.02x:%.02x:%.02x:%.02x:%.02x:%.02x",
- config.mac_address[5], config.mac_address[4],
- config.mac_address[3], config.mac_address[2],
- config.mac_address[1], config.mac_address[0]);
- else
- command_print(cmd, "MAC address: %.02x:%.02x:%.02x:%.02x:%.02x:%.02x "
- "[%.02x:%.02x:%.02x:%.02x:%.02x:%.02x]",
- config.mac_address[5], config.mac_address[4],
- config.mac_address[3], config.mac_address[2],
- config.mac_address[1], config.mac_address[0],
- tmp_config.mac_address[5], tmp_config.mac_address[4],
- tmp_config.mac_address[3], tmp_config.mac_address[2],
- tmp_config.mac_address[1], tmp_config.mac_address[0]);
- }
-
- static void show_config_target_power(struct command_invocation *cmd)
- {
- const char *target_power;
- const char *current_target_power;
-
- if (!config.target_power)
- target_power = "off";
- else
- target_power = "on";
-
- if (!tmp_config.target_power)
- current_target_power = "off";
- else
- current_target_power = "on";
-
- if (config.target_power != tmp_config.target_power)
- command_print(cmd, "Target power supply: %s [%s]", target_power,
- current_target_power);
- else
- command_print(cmd, "Target power supply: %s", target_power);
- }
-
- static void show_config(struct command_invocation *cmd)
- {
- command_print(cmd, "J-Link device configuration:");
-
- show_config_usb_address(cmd);
-
- if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_SET_TARGET_POWER))
- show_config_target_power(cmd);
-
- if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_ETHERNET)) {
- show_config_ip_address(cmd);
- show_config_mac_address(cmd);
- }
- }
-
- static int poll_trace(uint8_t *buf, size_t *size)
- {
- int ret;
- uint32_t length;
-
- length = *size;
-
- ret = jaylink_swo_read(devh, buf, &length);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_swo_read() failed: %s.", jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- *size = length;
-
- return ERROR_OK;
- }
-
- static uint32_t calculate_trace_buffer_size(void)
- {
- int ret;
- uint32_t tmp;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_FREE_MEMORY))
- return 0;
-
- ret = jaylink_get_free_memory(devh, &tmp);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_get_free_memory() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- if (tmp > 0x3fff || tmp <= 0x600)
- tmp = tmp >> 1;
- else
- tmp = tmp - 0x400;
-
- return tmp & 0xffffff00;
- }
-
- static bool calculate_swo_prescaler(unsigned int traceclkin_freq,
- uint32_t trace_freq, uint16_t *prescaler)
- {
- unsigned int presc;
- double deviation;
-
- presc = ((1.0 - SWO_MAX_FREQ_DEV) * traceclkin_freq) / trace_freq + 1;
-
- if (presc > TPIU_ACPR_MAX_SWOSCALER)
- return false;
-
- deviation = fabs(1.0 - ((double)trace_freq * presc / traceclkin_freq));
-
- if (deviation > SWO_MAX_FREQ_DEV)
- return false;
-
- *prescaler = presc;
-
- return true;
- }
-
- static bool detect_swo_freq_and_prescaler(struct jaylink_swo_speed speed,
- unsigned int traceclkin_freq, uint32_t *trace_freq,
- uint16_t *prescaler)
- {
- uint32_t divider;
- unsigned int presc;
- double deviation;
-
- for (divider = speed.min_div; divider <= speed.max_div; divider++) {
- *trace_freq = speed.freq / divider;
- presc = ((1.0 - SWO_MAX_FREQ_DEV) * traceclkin_freq) / *trace_freq + 1;
-
- if (presc > TPIU_ACPR_MAX_SWOSCALER)
- break;
-
- deviation = fabs(1.0 - ((double)*trace_freq * presc / traceclkin_freq));
-
- if (deviation <= SWO_MAX_FREQ_DEV) {
- *prescaler = presc;
- return true;
- }
- }
-
- return false;
- }
-
- static int config_trace(bool enabled, enum tpiu_pin_protocol pin_protocol,
- uint32_t port_size, unsigned int *trace_freq,
- unsigned int traceclkin_freq, uint16_t *prescaler)
- {
- int ret;
- uint32_t buffer_size;
- struct jaylink_swo_speed speed;
- uint32_t divider;
- uint32_t min_freq;
- uint32_t max_freq;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SWO)) {
- LOG_ERROR("Trace capturing is not supported by the device.");
- return ERROR_FAIL;
- }
-
- if (pin_protocol != TPIU_PIN_PROTOCOL_ASYNC_UART) {
- LOG_ERROR("Selected pin protocol is not supported.");
- return ERROR_FAIL;
- }
-
- trace_enabled = enabled;
-
- ret = jaylink_swo_stop(devh);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_swo_stop() failed: %s.", jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- if (!enabled) {
- /*
- * Adjust the SWD transaction buffer size as stopping SWO capturing
- * deallocates device internal memory.
- */
- if (!adjust_swd_buffer_size())
- return ERROR_FAIL;
-
- return ERROR_OK;
- }
-
- buffer_size = calculate_trace_buffer_size();
-
- if (!buffer_size) {
- LOG_ERROR("Not enough free device memory to start trace capturing.");
- return ERROR_FAIL;
- }
-
- ret = jaylink_swo_get_speeds(devh, JAYLINK_SWO_MODE_UART, &speed);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_swo_get_speeds() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- if (*trace_freq > 0) {
- divider = speed.freq / *trace_freq;
- min_freq = speed.freq / speed.max_div;
- max_freq = speed.freq / speed.min_div;
-
- if (*trace_freq > max_freq) {
- LOG_INFO("Given SWO frequency too high, using %u Hz instead.",
- max_freq);
- *trace_freq = max_freq;
- } else if (*trace_freq < min_freq) {
- LOG_INFO("Given SWO frequency too low, using %u Hz instead.",
- min_freq);
- *trace_freq = min_freq;
- } else if (*trace_freq != speed.freq / divider) {
- *trace_freq = speed.freq / divider;
-
- LOG_INFO("Given SWO frequency is not supported by the device, "
- "using %u Hz instead.", *trace_freq);
- }
-
- if (!calculate_swo_prescaler(traceclkin_freq, *trace_freq,
- prescaler)) {
- LOG_ERROR("SWO frequency is not suitable. Please choose a "
- "different frequency or use auto-detection.");
- return ERROR_FAIL;
- }
- } else {
- LOG_INFO("Trying to auto-detect SWO frequency.");
-
- if (!detect_swo_freq_and_prescaler(speed, traceclkin_freq, trace_freq,
- prescaler)) {
- LOG_ERROR("Maximum permitted frequency deviation of %.02f %% "
- "could not be achieved.", SWO_MAX_FREQ_DEV);
- LOG_ERROR("Auto-detection of SWO frequency failed.");
- return ERROR_FAIL;
- }
-
- LOG_INFO("Using SWO frequency of %u Hz.", *trace_freq);
- }
-
- ret = jaylink_swo_start(devh, JAYLINK_SWO_MODE_UART, *trace_freq,
- buffer_size);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_start_swo() failed: %s.", jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- LOG_DEBUG("Using %u bytes device memory for trace capturing.",
- buffer_size);
-
- /*
- * Adjust the SWD transaction buffer size as starting SWO capturing
- * allocates device internal memory.
- */
- if (!adjust_swd_buffer_size())
- return ERROR_FAIL;
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_config_usb_address_command)
- {
- uint8_t tmp;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
- command_print(CMD, "Reading configuration is not supported by the "
- "device.");
- return ERROR_OK;
- }
-
- if (!CMD_ARGC) {
- show_config_usb_address(CMD);
- } else if (CMD_ARGC == 1) {
- if (sscanf(CMD_ARGV[0], "%" SCNd8, &tmp) != 1) {
- command_print(CMD, "Invalid USB address: %s.", CMD_ARGV[0]);
- return ERROR_FAIL;
- }
-
- if (tmp > JAYLINK_USB_ADDRESS_3) {
- command_print(CMD, "Invalid USB address: %u.", tmp);
- return ERROR_FAIL;
- }
-
- tmp_config.usb_address = tmp;
- } else {
- command_print(CMD, "Need exactly one argument for jlink config "
- "usb.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_config_target_power_command)
- {
- int enable;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
- command_print(CMD, "Reading configuration is not supported by the "
- "device.");
- return ERROR_OK;
- }
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SET_TARGET_POWER)) {
- command_print(CMD, "Target power supply is not supported by the "
- "device.");
- return ERROR_OK;
- }
-
- if (!CMD_ARGC) {
- show_config_target_power(CMD);
- } else if (CMD_ARGC == 1) {
- if (!strcmp(CMD_ARGV[0], "on")) {
- enable = true;
- } else if (!strcmp(CMD_ARGV[0], "off")) {
- enable = false;
- } else {
- command_print(CMD, "Invalid argument: %s.", CMD_ARGV[0]);
- return ERROR_FAIL;
- }
-
- tmp_config.target_power = enable;
- } else {
- command_print(CMD, "Need exactly one argument for jlink config "
- "targetpower.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_config_mac_address_command)
- {
- uint8_t addr[6];
- int i;
- char *e;
- const char *str;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
- command_print(CMD, "Reading configuration is not supported by the "
- "device.");
- return ERROR_OK;
- }
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_ETHERNET)) {
- command_print(CMD, "Ethernet connectivity is not supported by the "
- "device.");
- return ERROR_OK;
- }
-
- if (!CMD_ARGC) {
- show_config_mac_address(CMD);
- } else if (CMD_ARGC == 1) {
- str = CMD_ARGV[0];
-
- if ((strlen(str) != 17) || (str[2] != ':' || str[5] != ':' || \
- str[8] != ':' || str[11] != ':' || str[14] != ':')) {
- command_print(CMD, "Invalid MAC address format.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- for (i = 5; i >= 0; i--) {
- addr[i] = strtoul(str, &e, 16);
- str = e + 1;
- }
-
- if (!(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5])) {
- command_print(CMD, "Invalid MAC address: zero address.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- if (!(0x01 & addr[0])) {
- command_print(CMD, "Invalid MAC address: multicast address.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- memcpy(tmp_config.mac_address, addr, sizeof(addr));
- } else {
- command_print(CMD, "Need exactly one argument for jlink config "
- " mac.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- return ERROR_OK;
- }
-
- static bool string_to_ip(const char *s, uint8_t *ip, int *pos)
- {
- uint8_t lip[4];
- char *e;
- const char *s_save = s;
- int i;
-
- if (!s)
- return false;
-
- for (i = 0; i < 4; i++) {
- lip[i] = strtoul(s, &e, 10);
-
- if (*e != '.' && i != 3)
- return false;
-
- s = e + 1;
- }
-
- *pos = e - s_save;
- memcpy(ip, lip, sizeof(lip));
-
- return true;
- }
-
- static void cpy_ip(uint8_t *dst, uint8_t *src)
- {
- int i, j;
-
- for (i = 0, j = 3; i < 4; i++, j--)
- dst[i] = src[j];
- }
-
- COMMAND_HANDLER(jlink_handle_config_ip_address_command)
- {
- uint8_t ip_address[4];
- uint32_t subnet_mask = 0;
- int i, len;
- uint8_t subnet_bits = 24;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
- command_print(CMD, "Reading configuration is not supported by the "
- "device.");
- return ERROR_OK;
- }
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_ETHERNET)) {
- command_print(CMD, "Ethernet connectivity is not supported by the "
- "device.");
- return ERROR_OK;
- }
-
- if (!CMD_ARGC) {
- show_config_ip_address(CMD);
- } else {
- if (!string_to_ip(CMD_ARGV[0], ip_address, &i))
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- len = strlen(CMD_ARGV[0]);
-
- /* Check for format A.B.C.D/E. */
- if (i < len) {
- if (CMD_ARGV[0][i] != '/')
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0] + i + 1, subnet_bits);
- } else if (CMD_ARGC > 1) {
- if (!string_to_ip(CMD_ARGV[1], (uint8_t *)&subnet_mask, &i))
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- if (!subnet_mask)
- subnet_mask = (uint32_t)(subnet_bits < 32 ?
- ((1ULL << subnet_bits) - 1) : 0xffffffff);
-
- cpy_ip(tmp_config.ip_address, ip_address);
- cpy_ip(tmp_config.subnet_mask, (uint8_t *)&subnet_mask);
- }
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_config_reset_command)
- {
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG))
- return ERROR_OK;
-
- memcpy(&tmp_config, &config, sizeof(struct device_config));
-
- return ERROR_OK;
- }
-
-
- COMMAND_HANDLER(jlink_handle_config_write_command)
- {
- int ret;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
- command_print(CMD, "Reading configuration is not supported by the "
- "device.");
- return ERROR_OK;
- }
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_WRITE_CONFIG)) {
- command_print(CMD, "Writing configuration is not supported by the "
- "device.");
- return ERROR_OK;
- }
-
- if (!memcmp(&config, &tmp_config, sizeof(struct device_config))) {
- command_print(CMD, "Operation not performed due to no changes in "
- "the configuration.");
- return ERROR_OK;
- }
-
- ret = jaylink_write_raw_config(devh, (const uint8_t *)&tmp_config);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_write_raw_config() failed: %s.",
- jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- if (!read_device_config(&config)) {
- LOG_ERROR("Failed to read device configuration for verification.");
- return ERROR_FAIL;
- }
-
- if (memcmp(&config, &tmp_config, sizeof(struct device_config))) {
- LOG_ERROR("Verification of device configuration failed. Please check "
- "your device.");
- return ERROR_FAIL;
- }
-
- memcpy(&tmp_config, &config, sizeof(struct device_config));
- command_print(CMD, "The new device configuration applies after power "
- "cycling the J-Link device.");
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_config_command)
- {
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
- command_print(CMD, "Device doesn't support reading configuration.");
- return ERROR_OK;
- }
-
- if (CMD_ARGC == 0)
- show_config(CMD);
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_emucom_write_command)
- {
- int ret;
- size_t tmp;
- uint32_t channel;
- uint32_t length;
- uint8_t *buf;
- size_t dummy;
-
- if (CMD_ARGC != 2)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_EMUCOM)) {
- LOG_ERROR("Device does not support EMUCOM.");
- return ERROR_FAIL;
- }
-
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], channel);
-
- tmp = strlen(CMD_ARGV[1]);
-
- if (tmp % 2 != 0) {
- LOG_ERROR("Data must be encoded as hexadecimal pairs.");
- return ERROR_COMMAND_ARGUMENT_INVALID;
- }
-
- buf = malloc(tmp / 2);
-
- if (!buf) {
- LOG_ERROR("Failed to allocate buffer.");
- return ERROR_FAIL;
- }
-
- dummy = unhexify(buf, CMD_ARGV[1], tmp / 2);
-
- if (dummy != (tmp / 2)) {
- LOG_ERROR("Data must be encoded as hexadecimal pairs.");
- free(buf);
- return ERROR_COMMAND_ARGUMENT_INVALID;
- }
-
- length = tmp / 2;
- ret = jaylink_emucom_write(devh, channel, buf, &length);
-
- free(buf);
-
- if (ret == JAYLINK_ERR_DEV_NOT_SUPPORTED) {
- LOG_ERROR("Channel not supported by the device.");
- return ERROR_FAIL;
- } else if (ret != JAYLINK_OK) {
- LOG_ERROR("Failed to write to channel: %s.", jaylink_strerror(ret));
- return ERROR_FAIL;
- }
-
- if (length != (tmp / 2))
- LOG_WARNING("Only %" PRIu32 " bytes written to the channel.", length);
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(jlink_handle_emucom_read_command)
- {
- int ret;
- uint32_t channel;
- uint32_t length;
- uint8_t *buf;
- size_t tmp;
-
- if (CMD_ARGC != 2)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_EMUCOM)) {
- LOG_ERROR("Device does not support EMUCOM.");
- return ERROR_FAIL;
- }
-
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], channel);
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
-
- buf = malloc(length * 3 + 1);
-
- if (!buf) {
- LOG_ERROR("Failed to allocate buffer.");
- return ERROR_FAIL;
- }
-
- ret = jaylink_emucom_read(devh, channel, buf, &length);
-
- if (ret == JAYLINK_ERR_DEV_NOT_SUPPORTED) {
- LOG_ERROR("Channel is not supported by the device.");
- free(buf);
- return ERROR_FAIL;
- } else if (ret == JAYLINK_ERR_DEV_NOT_AVAILABLE) {
- LOG_ERROR("Channel is not available for the requested amount of data. "
- "%" PRIu32 " bytes are avilable.", length);
- free(buf);
- return ERROR_FAIL;
- } else if (ret != JAYLINK_OK) {
- LOG_ERROR("Failed to read from channel: %s.", jaylink_strerror(ret));
- free(buf);
- return ERROR_FAIL;
- }
-
- tmp = hexify((char *)buf + length, buf, length, 2 * length + 1);
-
- if (tmp != 2 * length) {
- LOG_ERROR("Failed to convert data into hexadecimal string.");
- free(buf);
- return ERROR_FAIL;
- }
-
- command_print(CMD, "%s", buf + length);
- free(buf);
-
- return ERROR_OK;
- }
-
- static const struct command_registration jlink_config_subcommand_handlers[] = {
- {
- .name = "usb",
- .handler = &jlink_handle_config_usb_address_command,
- .mode = COMMAND_EXEC,
- .help = "set the USB address",
- .usage = "[0-3]",
- },
- {
- .name = "targetpower",
- .handler = &jlink_handle_config_target_power_command,
- .mode = COMMAND_EXEC,
- .help = "set the target power supply",
- .usage = "[on|off]"
- },
- {
- .name = "mac",
- .handler = &jlink_handle_config_mac_address_command,
- .mode = COMMAND_EXEC,
- .help = "set the MAC Address",
- .usage = "[ff:ff:ff:ff:ff:ff]",
- },
- {
- .name = "ip",
- .handler = &jlink_handle_config_ip_address_command,
- .mode = COMMAND_EXEC,
- .help = "set the IP address, where A.B.C.D is the IP address, "
- "E the bit of the subnet mask, F.G.H.I the subnet mask",
- .usage = "[A.B.C.D[/E] [F.G.H.I]]",
- },
- {
- .name = "reset",
- .handler = &jlink_handle_config_reset_command,
- .mode = COMMAND_EXEC,
- .help = "undo configuration changes",
- .usage = "",
- },
- {
- .name = "write",
- .handler = &jlink_handle_config_write_command,
- .mode = COMMAND_EXEC,
- .help = "write configuration to the device",
- .usage = "",
- },
- COMMAND_REGISTRATION_DONE
- };
-
- static const struct command_registration jlink_emucom_subcommand_handlers[] = {
- {
- .name = "write",
- .handler = &jlink_handle_emucom_write_command,
- .mode = COMMAND_EXEC,
- .help = "write to a channel",
- .usage = "<channel> <data>",
- },
- {
- .name = "read",
- .handler = &jlink_handle_emucom_read_command,
- .mode = COMMAND_EXEC,
- .help = "read from a channel",
- .usage = "<channel> <length>"
- },
- COMMAND_REGISTRATION_DONE
- };
-
- static const struct command_registration jlink_subcommand_handlers[] = {
- {
- .name = "jtag",
- .handler = &jlink_handle_jlink_jtag_command,
- .mode = COMMAND_EXEC,
- .help = "select the JTAG command version",
- .usage = "[2|3]",
- },
- {
- .name = "targetpower",
- .handler = &jlink_handle_target_power_command,
- .mode = COMMAND_EXEC,
- .help = "set the target power supply",
- .usage = "<on|off>"
- },
- {
- .name = "freemem",
- .handler = &jlink_handle_free_memory_command,
- .mode = COMMAND_EXEC,
- .help = "show free device memory",
- .usage = "",
- },
- {
- .name = "hwstatus",
- .handler = &jlink_handle_hwstatus_command,
- .mode = COMMAND_EXEC,
- .help = "show the hardware status",
- .usage = "",
- },
- {
- .name = "usb",
- .handler = &jlink_usb_command,
- .mode = COMMAND_CONFIG,
- .help = "set the USB address of the device that should be used",
- .usage = "<0-3>"
- },
- {
- .name = "serial",
- .handler = &jlink_serial_command,
- .mode = COMMAND_CONFIG,
- .help = "set the serial number of the device that should be used",
- .usage = "<serial number>"
- },
- {
- .name = "config",
- .handler = &jlink_handle_config_command,
- .mode = COMMAND_EXEC,
- .help = "access the device configuration. If no argument is given "
- "this will show the device configuration",
- .chain = jlink_config_subcommand_handlers,
- .usage = "[<cmd>]",
- },
- {
- .name = "emucom",
- .mode = COMMAND_EXEC,
- .help = "access EMUCOM channel",
- .chain = jlink_emucom_subcommand_handlers,
- .usage = "",
- },
- COMMAND_REGISTRATION_DONE
- };
-
- static const struct command_registration jlink_command_handlers[] = {
- {
- .name = "jlink",
- .mode = COMMAND_ANY,
- .help = "perform jlink management",
- .chain = jlink_subcommand_handlers,
- .usage = "",
- },
- COMMAND_REGISTRATION_DONE
- };
-
- static int jlink_swd_init(void)
- {
- iface = JAYLINK_TIF_SWD;
-
- return ERROR_OK;
- }
-
- static void jlink_swd_write_reg(uint8_t cmd, uint32_t value, uint32_t ap_delay_clk)
- {
- assert(!(cmd & SWD_CMD_RnW));
- jlink_swd_queue_cmd(cmd, NULL, value, ap_delay_clk);
- }
-
- static void jlink_swd_read_reg(uint8_t cmd, uint32_t *value, uint32_t ap_delay_clk)
- {
- assert(cmd & SWD_CMD_RnW);
- jlink_swd_queue_cmd(cmd, value, 0, ap_delay_clk);
- }
-
- /***************************************************************************/
- /* J-Link tap functions */
-
- static unsigned tap_length;
- /* In SWD mode use tms buffer for direction control */
- static uint8_t tms_buffer[JLINK_TAP_BUFFER_SIZE];
- static uint8_t tdi_buffer[JLINK_TAP_BUFFER_SIZE];
- static uint8_t tdo_buffer[JLINK_TAP_BUFFER_SIZE];
-
- struct pending_scan_result {
- /** First bit position in tdo_buffer to read. */
- unsigned first;
- /** Number of bits to read. */
- unsigned length;
- /** Location to store the result */
- void *buffer;
- /** Offset in the destination buffer */
- unsigned buffer_offset;
- };
-
- #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 void jlink_tap_init(void)
- {
- tap_length = 0;
- pending_scan_results_length = 0;
- memset(tms_buffer, 0, sizeof(tms_buffer));
- memset(tdi_buffer, 0, sizeof(tdi_buffer));
- }
-
- static void jlink_clock_data(const uint8_t *out, unsigned out_offset,
- const uint8_t *tms_out, unsigned tms_offset,
- uint8_t *in, unsigned in_offset,
- unsigned length)
- {
- do {
- unsigned available_length = JLINK_TAP_BUFFER_SIZE - tap_length / 8;
-
- if (!available_length ||
- (in && pending_scan_results_length == MAX_PENDING_SCAN_RESULTS)) {
- if (jlink_flush() != ERROR_OK)
- return;
- available_length = JLINK_TAP_BUFFER_SIZE;
- }
-
- struct pending_scan_result *pending_scan_result =
- &pending_scan_results_buffer[pending_scan_results_length];
-
- unsigned scan_length = length > available_length ?
- available_length : length;
-
- if (out)
- buf_set_buf(out, out_offset, tdi_buffer, tap_length, scan_length);
- if (tms_out)
- buf_set_buf(tms_out, tms_offset, tms_buffer, tap_length, scan_length);
-
- if (in) {
- pending_scan_result->first = tap_length;
- pending_scan_result->length = scan_length;
- pending_scan_result->buffer = in;
- pending_scan_result->buffer_offset = in_offset;
- pending_scan_results_length++;
- }
-
- tap_length += scan_length;
- out_offset += scan_length;
- tms_offset += scan_length;
- in_offset += scan_length;
- length -= scan_length;
- } while (length > 0);
- }
-
- static int jlink_flush(void)
- {
- int i;
- int ret;
-
- if (!tap_length)
- return ERROR_OK;
-
- jlink_last_state = jtag_debug_state_machine(tms_buffer, tdi_buffer,
- tap_length, jlink_last_state);
-
- ret = jaylink_jtag_io(devh, tms_buffer, tdi_buffer, tdo_buffer,
- tap_length, jtag_command_version);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_jtag_io() failed: %s.", jaylink_strerror(ret));
- jlink_tap_init();
- return ERROR_JTAG_QUEUE_FAILED;
- }
-
- for (i = 0; i < pending_scan_results_length; i++) {
- struct pending_scan_result *p = &pending_scan_results_buffer[i];
-
- buf_set_buf(tdo_buffer, p->first, p->buffer,
- p->buffer_offset, p->length);
-
- LOG_DEBUG_IO("Pending scan result, length = %d.", p->length);
- }
-
- jlink_tap_init();
-
- return ERROR_OK;
- }
-
- static void fill_buffer(uint8_t *buf, uint32_t val, uint32_t len)
- {
- unsigned int tap_pos = tap_length;
-
- while (len > 32) {
- buf_set_u32(buf, tap_pos, 32, val);
- len -= 32;
- tap_pos += 32;
- }
-
- if (len)
- buf_set_u32(buf, tap_pos, len, val);
- }
-
- static void jlink_queue_data_out(const uint8_t *data, uint32_t len)
- {
- const uint32_t dir_out = 0xffffffff;
-
- if (data)
- bit_copy(tdi_buffer, tap_length, data, 0, len);
- else
- fill_buffer(tdi_buffer, 0, len);
-
- fill_buffer(tms_buffer, dir_out, len);
- tap_length += len;
- }
-
- static void jlink_queue_data_in(uint32_t len)
- {
- const uint32_t dir_in = 0;
-
- fill_buffer(tms_buffer, dir_in, len);
- tap_length += len;
- }
-
- static int jlink_swd_switch_seq(enum swd_special_seq seq)
- {
- const uint8_t *s;
- unsigned int s_len;
-
- switch (seq) {
- case LINE_RESET:
- LOG_DEBUG("SWD line reset");
- s = swd_seq_line_reset;
- s_len = swd_seq_line_reset_len;
- break;
- case JTAG_TO_SWD:
- LOG_DEBUG("JTAG-to-SWD");
- s = swd_seq_jtag_to_swd;
- s_len = swd_seq_jtag_to_swd_len;
- break;
- case SWD_TO_JTAG:
- LOG_DEBUG("SWD-to-JTAG");
- s = swd_seq_swd_to_jtag;
- s_len = swd_seq_swd_to_jtag_len;
- break;
- default:
- LOG_ERROR("Sequence %d not supported.", seq);
- return ERROR_FAIL;
- }
-
- jlink_queue_data_out(s, s_len);
-
- return ERROR_OK;
- }
-
- static int jlink_swd_run_queue(void)
- {
- int i;
- int ret;
-
- LOG_DEBUG("Executing %d queued transactions.", pending_scan_results_length);
-
- if (queued_retval != ERROR_OK) {
- LOG_DEBUG("Skipping due to previous errors: %d.", queued_retval);
- goto skip;
- }
-
- /*
- * A transaction must be followed by another transaction or at least 8 idle
- * cycles to ensure that data is clocked through the AP.
- */
- jlink_queue_data_out(NULL, 8);
-
- ret = jaylink_swd_io(devh, tms_buffer, tdi_buffer, tdo_buffer, tap_length);
-
- if (ret != JAYLINK_OK) {
- LOG_ERROR("jaylink_swd_io() failed: %s.", jaylink_strerror(ret));
- goto skip;
- }
-
- for (i = 0; i < pending_scan_results_length; i++) {
- int ack = buf_get_u32(tdo_buffer, pending_scan_results_buffer[i].first, 3);
-
- if (ack != SWD_ACK_OK) {
- LOG_DEBUG("SWD ack not OK: %d %s", ack,
- ack == SWD_ACK_WAIT ? "WAIT" : ack == SWD_ACK_FAULT ? "FAULT" : "JUNK");
- queued_retval = ack == SWD_ACK_WAIT ? ERROR_WAIT : ERROR_FAIL;
- goto skip;
- } else if (pending_scan_results_buffer[i].length) {
- uint32_t data = buf_get_u32(tdo_buffer, 3 + pending_scan_results_buffer[i].first, 32);
- int parity = buf_get_u32(tdo_buffer, 3 + 32 + pending_scan_results_buffer[i].first, 1);
-
- if (parity != parity_u32(data)) {
- LOG_ERROR("SWD: Read data parity mismatch.");
- queued_retval = ERROR_FAIL;
- goto skip;
- }
-
- if (pending_scan_results_buffer[i].buffer)
- *(uint32_t *)pending_scan_results_buffer[i].buffer = data;
- }
- }
-
- skip:
- jlink_tap_init();
- ret = queued_retval;
- queued_retval = ERROR_OK;
-
- return ret;
- }
-
- static void jlink_swd_queue_cmd(uint8_t cmd, uint32_t *dst, uint32_t data, uint32_t ap_delay_clk)
- {
- uint8_t data_parity_trn[DIV_ROUND_UP(32 + 1, 8)];
- if (tap_length + 46 + 8 + ap_delay_clk >= swd_buffer_size * 8 ||
- pending_scan_results_length == MAX_PENDING_SCAN_RESULTS) {
- /* Not enough room in the queue. Run the queue. */
- queued_retval = jlink_swd_run_queue();
- }
-
- if (queued_retval != ERROR_OK)
- return;
-
- cmd |= SWD_CMD_START | SWD_CMD_PARK;
-
- jlink_queue_data_out(&cmd, 8);
-
- pending_scan_results_buffer[pending_scan_results_length].first = tap_length;
-
- if (cmd & SWD_CMD_RnW) {
- /* Queue a read transaction. */
- pending_scan_results_buffer[pending_scan_results_length].length = 32;
- pending_scan_results_buffer[pending_scan_results_length].buffer = dst;
-
- jlink_queue_data_in(1 + 3 + 32 + 1 + 1);
- } else {
- /* Queue a write transaction. */
- pending_scan_results_buffer[pending_scan_results_length].length = 0;
- jlink_queue_data_in(1 + 3 + 1);
-
- buf_set_u32(data_parity_trn, 0, 32, data);
- buf_set_u32(data_parity_trn, 32, 1, parity_u32(data));
-
- jlink_queue_data_out(data_parity_trn, 32 + 1);
- }
-
- pending_scan_results_length++;
-
- /* Insert idle cycles after AP accesses to avoid WAIT. */
- if (cmd & SWD_CMD_APnDP)
- jlink_queue_data_out(NULL, ap_delay_clk);
- }
-
- static const struct swd_driver jlink_swd = {
- .init = &jlink_swd_init,
- .switch_seq = &jlink_swd_switch_seq,
- .read_reg = &jlink_swd_read_reg,
- .write_reg = &jlink_swd_write_reg,
- .run = &jlink_swd_run_queue,
- };
-
- static const char * const jlink_transports[] = { "jtag", "swd", NULL };
-
- static struct jtag_interface jlink_interface = {
- .execute_queue = &jlink_execute_queue,
- };
-
- struct adapter_driver jlink_adapter_driver = {
- .name = "jlink",
- .transports = jlink_transports,
- .commands = jlink_command_handlers,
-
- .init = &jlink_init,
- .quit = &jlink_quit,
- .reset = &jlink_reset_safe,
- .speed = &jlink_speed,
- .khz = &jlink_khz,
- .speed_div = &jlink_speed_div,
- .config_trace = &config_trace,
- .poll_trace = &poll_trace,
-
- .jtag_ops = &jlink_interface,
- .swd_ops = &jlink_swd,
- };
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