/***************************************************************************
- * Copyright (C) 2011 by Martin Schmoelzer *
+ * Copyright (C) 2011-2013 by Martin Schmoelzer *
* <martin.schmoelzer@student.tuwien.ac.at> *
* *
* This program is free software; you can redistribute it and/or modify *
* 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. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+#include <math.h>
#include <jtag/interface.h>
#include <jtag/commands.h>
#include <target/image.h>
-#include <helper/types.h>
-#include "usb_common.h"
+#include <libusb-1.0/libusb.h>
#include "OpenULINK/include/msgtypes.h"
/** USB Vendor ID of ULINK device in unconfigured state (no firmware loaded
#define ULINK_RENUMERATION_DELAY 1500000
/** Default location of OpenULINK firmware image. */
-#define ULINK_FIRMWARE_FILE PKGLIBDIR "/OpenULINK/ulink_firmware.hex"
+#define ULINK_FIRMWARE_FILE PKGDATADIR "/OpenULINK/ulink_firmware.hex"
/** Maximum size of a single firmware section. Entire EZ-USB code space = 8kB */
#define SECTION_BUFFERSIZE 8192
#define SPLIT_SCAN_THRESHOLD 10
/** ULINK hardware type */
-enum ulink_type
-{
- /** Original ULINK adapter, based on Cypress EZ-USB (AN2131):
- * Full JTAG support, no SWD support. */
- ULINK_1,
+enum ulink_type {
+ /** Original ULINK adapter, based on Cypress EZ-USB (AN2131):
+ * Full JTAG support, no SWD support. */
+ ULINK_1,
- /** Newer ULINK adapter, based on NXP LPC2148. Currently unsupported. */
- ULINK_2,
+ /** Newer ULINK adapter, based on NXP LPC2148. Currently unsupported. */
+ ULINK_2,
- /** Newer ULINK adapter, based on EZ-USB FX2 + FPGA. Currently unsupported. */
- ULINK_PRO,
+ /** Newer ULINK adapter, based on EZ-USB FX2 + FPGA. Currently unsupported. */
+ ULINK_PRO,
- /** Newer ULINK adapter, possibly based on ULINK 2. Currently unsupported. */
- ULINK_ME
+ /** Newer ULINK adapter, possibly based on ULINK 2. Currently unsupported. */
+ ULINK_ME
};
-enum ulink_payload_direction
-{
- PAYLOAD_DIRECTION_OUT,
- PAYLOAD_DIRECTION_IN
+enum ulink_payload_direction {
+ PAYLOAD_DIRECTION_OUT,
+ PAYLOAD_DIRECTION_IN
+};
+
+enum ulink_delay_type {
+ DELAY_CLOCK_TCK,
+ DELAY_CLOCK_TMS,
+ DELAY_SCAN_IN,
+ DELAY_SCAN_OUT,
+ DELAY_SCAN_IO
};
/**
* The last command sets #needs_postprocessing to true.
*/
struct ulink_cmd {
- uint8_t id; ///< ULINK command ID
+ uint8_t id; /* /< ULINK command ID */
- uint8_t *payload_out; ///< OUT direction payload data
- uint8_t payload_out_size; ///< OUT direction payload size for this command
+ uint8_t *payload_out; /* /< OUT direction payload data */
+ uint8_t payload_out_size; /* /< OUT direction payload size for this command */
- uint8_t *payload_in_start; ///< Pointer to first element of IN payload array
- uint8_t *payload_in; ///< Pointer where IN payload shall be stored
- uint8_t payload_in_size; ///< IN direction payload size for this command
+ uint8_t *payload_in_start; /* /< Pointer to first element of IN payload array */
+ uint8_t *payload_in; /* /< Pointer where IN payload shall be stored */
+ uint8_t payload_in_size;/* /< IN direction payload size for this command */
- /** Indicates if this command needs post-processing */
- bool needs_postprocessing;
+ /** Indicates if this command needs post-processing */
+ bool needs_postprocessing;
- /** Indicates if ulink_clear_queue() should free payload_in_start */
- bool free_payload_in_start;
+ /** Indicates if ulink_clear_queue() should free payload_in_start */
+ bool free_payload_in_start;
- /** Pointer to corresponding OpenOCD command for post-processing */
- struct jtag_command *cmd_origin;
+ /** Pointer to corresponding OpenOCD command for post-processing */
+ struct jtag_command *cmd_origin;
- struct ulink_cmd *next; ///< Pointer to next command (linked list)
+ struct ulink_cmd *next; /* /< Pointer to next command (linked list) */
};
-typedef struct ulink_cmd ulink_cmd_t;
-
/** Describes one driver instance */
-struct ulink
-{
- struct usb_dev_handle *usb_handle;
- enum ulink_type type;
-
- int commands_in_queue; ///< Number of commands in queue
- ulink_cmd_t *queue_start; ///< Pointer to first command in queue
- ulink_cmd_t *queue_end; ///< Pointer to last command in queue
+struct ulink {
+ struct libusb_context *libusb_ctx;
+ struct libusb_device_handle *usb_device_handle;
+ enum ulink_type type;
+
+ int delay_scan_in; /* /< Delay value for SCAN_IN commands */
+ int delay_scan_out; /* /< Delay value for SCAN_OUT commands */
+ int delay_scan_io; /* /< Delay value for SCAN_IO commands */
+ int delay_clock_tck; /* /< Delay value for CLOCK_TMS commands */
+ int delay_clock_tms; /* /< Delay value for CLOCK_TCK commands */
+
+ int commands_in_queue; /* /< Number of commands in queue */
+ struct ulink_cmd *queue_start; /* /< Pointer to first command in queue */
+ struct ulink_cmd *queue_end; /* /< Pointer to last command in queue */
};
/**************************** Function Prototypes *****************************/
int ulink_usb_close(struct ulink **device);
/* ULINK MCU (Cypress EZ-USB) specific functions */
-int ulink_cpu_reset(struct ulink *device, char reset_bit);
+int ulink_cpu_reset(struct ulink *device, unsigned char reset_bit);
int ulink_load_firmware_and_renumerate(struct ulink **device, char *filename,
- uint32_t delay);
+ uint32_t delay);
int ulink_load_firmware(struct ulink *device, char *filename);
int ulink_write_firmware_section(struct ulink *device,
- struct image *firmware_image, int section_index);
+ struct image *firmware_image, int section_index);
/* Generic helper functions */
void ulink_print_signal_states(uint8_t input_signals, uint8_t output_signals);
/* OpenULINK command generation helper functions */
-int ulink_allocate_payload(ulink_cmd_t *ulink_cmd, int size,
- enum ulink_payload_direction direction);
+int ulink_allocate_payload(struct ulink_cmd *ulink_cmd, int size,
+ enum ulink_payload_direction direction);
/* OpenULINK command queue helper functions */
int ulink_get_queue_size(struct ulink *device,
- enum ulink_payload_direction direction);
+ enum ulink_payload_direction direction);
void ulink_clear_queue(struct ulink *device);
-int ulink_append_queue(struct ulink *device, ulink_cmd_t *ulink_cmd);
+int ulink_append_queue(struct ulink *device, struct ulink_cmd *ulink_cmd);
int ulink_execute_queued_commands(struct ulink *device, int timeout);
#ifdef _DEBUG_JTAG_IO_
-const char * ulink_cmd_id_string(uint8_t id);
-void ulink_print_command(ulink_cmd_t *ulink_cmd);
+const char *ulink_cmd_id_string(uint8_t id);
+void ulink_print_command(struct ulink_cmd *ulink_cmd);
void ulink_print_queue(struct ulink *device);
#endif
-int ulink_append_scan_cmd(struct ulink *device, enum scan_type scan_type,
- int scan_size_bits, uint8_t *tdi, uint8_t *tdo_start, uint8_t *tdo,
- uint8_t tms_count_start, uint8_t tms_sequence_start, uint8_t tms_count_end,
- uint8_t tms_sequence_end, struct jtag_command *origin, bool postprocess);
+int ulink_append_scan_cmd(struct ulink *device,
+ enum scan_type scan_type,
+ int scan_size_bits,
+ uint8_t *tdi,
+ uint8_t *tdo_start,
+ uint8_t *tdo,
+ uint8_t tms_count_start,
+ uint8_t tms_sequence_start,
+ uint8_t tms_count_end,
+ uint8_t tms_sequence_end,
+ struct jtag_command *origin,
+ bool postprocess);
int ulink_append_clock_tms_cmd(struct ulink *device, uint8_t count,
- uint8_t sequence);
+ uint8_t sequence);
int ulink_append_clock_tck_cmd(struct ulink *device, uint16_t count);
int ulink_append_get_signals_cmd(struct ulink *device);
int ulink_append_set_signals_cmd(struct ulink *device, uint8_t low,
- uint8_t high);
+ uint8_t high);
int ulink_append_sleep_cmd(struct ulink *device, uint32_t us);
-int ulink_append_configure_tck_cmd(struct ulink *device, uint8_t delay_scan,
- uint8_t delay_tck, uint8_t delay_tms);
+int ulink_append_configure_tck_cmd(struct ulink *device,
+ int delay_scan_in,
+ int delay_scan_out,
+ int delay_scan_io,
+ int delay_tck,
+ int delay_tms);
int ulink_append_led_cmd(struct ulink *device, uint8_t led_state);
int ulink_append_test_cmd(struct ulink *device);
+/* OpenULINK TCK frequency helper functions */
+int ulink_calculate_delay(enum ulink_delay_type type, long f, int *delay);
+int ulink_calculate_frequency(enum ulink_delay_type type, int delay, long *f);
+
/* Interface between OpenULINK and OpenOCD */
static void ulink_set_end_state(tap_state_t endstate);
int ulink_queue_statemove(struct ulink *device);
int ulink_queue_reset(struct ulink *device, struct jtag_command *cmd);
int ulink_queue_pathmove(struct ulink *device, struct jtag_command *cmd);
int ulink_queue_sleep(struct ulink *device, struct jtag_command *cmd);
+int ulink_queue_stableclocks(struct ulink *device, struct jtag_command *cmd);
-int ulink_post_process_scan(ulink_cmd_t *ulink_cmd);
+int ulink_post_process_scan(struct ulink_cmd *ulink_cmd);
int ulink_post_process_queue(struct ulink *device);
/* JTAG driver functions (registered in struct jtag_interface) */
/**
* Opens the ULINK device and claims its USB interface.
*
+ * Currently, only the original ULINK is supported
+ *
* @param device pointer to struct ulink identifying ULINK driver instance.
* @return on success: ERROR_OK
* @return on failure: ERROR_FAIL
*/
int ulink_usb_open(struct ulink **device)
{
- int ret;
- struct usb_dev_handle *usb_handle;
+ ssize_t num_devices, i;
+ bool found;
+ libusb_device **usb_devices;
+ struct libusb_device_descriptor usb_desc;
+ struct libusb_device_handle *usb_device_handle;
+
+ num_devices = libusb_get_device_list((*device)->libusb_ctx, &usb_devices);
- /* Currently, only original ULINK is supported */
- uint16_t vids[] = { ULINK_VID, 0 };
- uint16_t pids[] = { ULINK_PID, 0 };
+ if (num_devices <= 0)
+ return ERROR_FAIL;
- ret = jtag_usb_open(vids, pids, &usb_handle);
+ found = false;
+ for (i = 0; i < num_devices; i++) {
+ if (libusb_get_device_descriptor(usb_devices[i], &usb_desc) != 0)
+ continue;
+ else if (usb_desc.idVendor == ULINK_VID && usb_desc.idProduct == ULINK_PID) {
+ found = true;
+ break;
+ }
+ }
- if (ret != ERROR_OK) {
- return ret;
- }
+ if (!found)
+ return ERROR_FAIL;
- ret = usb_claim_interface(usb_handle, 0);
+ if (libusb_open(usb_devices[i], &usb_device_handle) != 0)
+ return ERROR_FAIL;
+ libusb_free_device_list(usb_devices, 1);
- if (ret != 0) {
- return ret;
- }
+ if (libusb_claim_interface(usb_device_handle, 0) != 0)
+ return ERROR_FAIL;
- (*device)->usb_handle = usb_handle;
- (*device)->type = ULINK_1;
+ (*device)->usb_device_handle = usb_device_handle;
+ (*device)->type = ULINK_1;
- return ERROR_OK;
+ return ERROR_OK;
}
/**
*/
int ulink_usb_close(struct ulink **device)
{
- if (usb_release_interface((*device)->usb_handle, 0) != 0) {
- return ERROR_FAIL;
- }
+ if (libusb_release_interface((*device)->usb_device_handle, 0) != 0)
+ return ERROR_FAIL;
- if (usb_close((*device)->usb_handle) != 0) {
- return ERROR_FAIL;
- }
+ libusb_close((*device)->usb_device_handle);
- (*device)->usb_handle = NULL;
+ (*device)->usb_device_handle = NULL;
- return ERROR_OK;
+ return ERROR_OK;
}
/******************* ULINK CPU (EZ-USB) specific functions ********************/
* @return on success: ERROR_OK
* @return on failure: ERROR_FAIL
*/
-int ulink_cpu_reset(struct ulink *device, char reset_bit)
+int ulink_cpu_reset(struct ulink *device, unsigned char reset_bit)
{
- int ret;
-
- ret = usb_control_msg(device->usb_handle,
- (USB_ENDPOINT_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE),
- REQUEST_FIRMWARE_LOAD, CPUCS_REG, 0, &reset_bit, 1, USB_TIMEOUT);
-
- /* usb_control_msg() returns the number of bytes transferred during the
- * DATA stage of the control transfer - must be exactly 1 in this case! */
- if (ret != 1) {
- return ERROR_FAIL;
- }
- return ERROR_OK;
+ int ret;
+
+ ret = libusb_control_transfer(device->usb_device_handle,
+ (LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE),
+ REQUEST_FIRMWARE_LOAD, CPUCS_REG, 0, &reset_bit, 1, USB_TIMEOUT);
+
+ /* usb_control_msg() returns the number of bytes transferred during the
+ * DATA stage of the control transfer - must be exactly 1 in this case! */
+ if (ret != 1)
+ return ERROR_FAIL;
+ return ERROR_OK;
}
/**
* @return on failure: ERROR_FAIL
*/
int ulink_load_firmware_and_renumerate(struct ulink **device,
- char *filename, uint32_t delay)
+ char *filename, uint32_t delay)
{
- int ret;
+ int ret;
- /* Basic process: After downloading the firmware, the ULINK will disconnect
- * itself and re-connect after a short amount of time so we have to close
- * the handle and re-enumerate USB devices */
+ /* Basic process: After downloading the firmware, the ULINK will disconnect
+ * itself and re-connect after a short amount of time so we have to close
+ * the handle and re-enumerate USB devices */
- ret = ulink_load_firmware(*device, filename);
- if (ret != ERROR_OK) {
- return ret;
- }
+ ret = ulink_load_firmware(*device, filename);
+ if (ret != ERROR_OK)
+ return ret;
- ret = ulink_usb_close(device);
- if (ret != ERROR_OK) {
- return ret;
- }
+ ret = ulink_usb_close(device);
+ if (ret != ERROR_OK)
+ return ret;
- usleep(delay);
+ usleep(delay);
- ret = ulink_usb_open(device);
- if (ret != ERROR_OK) {
- return ret;
- }
+ ret = ulink_usb_open(device);
+ if (ret != ERROR_OK)
+ return ret;
- return ERROR_OK;
+ return ERROR_OK;
}
/**
*/
int ulink_load_firmware(struct ulink *device, char *filename)
{
- struct image ulink_firmware_image;
- int ret, i;
-
- ret = ulink_cpu_reset(device, CPU_RESET);
- if (ret != ERROR_OK) {
- LOG_ERROR("Could not halt ULINK CPU");
- return ret;
- }
-
- ulink_firmware_image.base_address = 0;
- ulink_firmware_image.base_address_set = 0;
-
- ret = image_open(&ulink_firmware_image, filename, "ihex");
- if (ret != ERROR_OK) {
- LOG_ERROR("Could not load firmware image");
- return ret;
- }
-
- /* Download all sections in the image to ULINK */
- for (i = 0; i < ulink_firmware_image.num_sections; i++) {
- ret = ulink_write_firmware_section(device, &ulink_firmware_image, i);
- if (ret != ERROR_OK) {
- return ret;
- }
- }
-
- image_close(&ulink_firmware_image);
-
- ret = ulink_cpu_reset(device, CPU_START);
- if (ret != ERROR_OK) {
- LOG_ERROR("Could not restart ULINK CPU");
- return ret;
- }
-
- return ERROR_OK;
+ struct image ulink_firmware_image;
+ int ret, i;
+
+ ret = ulink_cpu_reset(device, CPU_RESET);
+ if (ret != ERROR_OK) {
+ LOG_ERROR("Could not halt ULINK CPU");
+ return ret;
+ }
+
+ ulink_firmware_image.base_address = 0;
+ ulink_firmware_image.base_address_set = 0;
+
+ ret = image_open(&ulink_firmware_image, filename, "ihex");
+ if (ret != ERROR_OK) {
+ LOG_ERROR("Could not load firmware image");
+ return ret;
+ }
+
+ /* Download all sections in the image to ULINK */
+ for (i = 0; i < ulink_firmware_image.num_sections; i++) {
+ ret = ulink_write_firmware_section(device, &ulink_firmware_image, i);
+ if (ret != ERROR_OK)
+ return ret;
+ }
+
+ image_close(&ulink_firmware_image);
+
+ ret = ulink_cpu_reset(device, CPU_START);
+ if (ret != ERROR_OK) {
+ LOG_ERROR("Could not restart ULINK CPU");
+ return ret;
+ }
+
+ return ERROR_OK;
}
/**
* @return on failure: ERROR_FAIL
*/
int ulink_write_firmware_section(struct ulink *device,
- struct image *firmware_image, int section_index)
+ struct image *firmware_image, int section_index)
{
- uint16_t addr, size, bytes_remaining, chunk_size;
- uint8_t data[SECTION_BUFFERSIZE];
- uint8_t *data_ptr = data;
- size_t size_read;
- int ret;
-
- size = (uint16_t)firmware_image->sections[section_index].size;
- addr = (uint16_t)firmware_image->sections[section_index].base_address;
-
- LOG_DEBUG("section %02i at addr 0x%04x (size 0x%04x)", section_index, addr,
- size);
-
- if (data == NULL) {
- return ERROR_FAIL;
- }
-
- /* Copy section contents to local buffer */
- ret = image_read_section(firmware_image, section_index, 0, size, data,
- &size_read);
-
- if ((ret != ERROR_OK) || (size_read != size)) {
- /* Propagating the return code would return '0' (misleadingly indicating
- * successful execution of the function) if only the size check fails. */
- return ERROR_FAIL;
- }
-
- bytes_remaining = size;
-
- /* Send section data in chunks of up to 64 bytes to ULINK */
- while (bytes_remaining > 0) {
- if (bytes_remaining > 64) {
- chunk_size = 64;
- }
- else {
- chunk_size = bytes_remaining;
- }
-
- ret = usb_control_msg(device->usb_handle,
- (USB_ENDPOINT_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE),
- REQUEST_FIRMWARE_LOAD, addr, FIRMWARE_ADDR, (char *)data_ptr,
- chunk_size, USB_TIMEOUT);
-
- if (ret != (int)chunk_size) {
- /* Abort if libusb sent less data than requested */
- return ERROR_FAIL;
- }
-
- bytes_remaining -= chunk_size;
- addr += chunk_size;
- data_ptr += chunk_size;
- }
-
- return ERROR_OK;
+ uint16_t addr, size, bytes_remaining, chunk_size;
+ uint8_t data[SECTION_BUFFERSIZE];
+ uint8_t *data_ptr = data;
+ size_t size_read;
+ int ret;
+
+ size = (uint16_t)firmware_image->sections[section_index].size;
+ addr = (uint16_t)firmware_image->sections[section_index].base_address;
+
+ LOG_DEBUG("section %02i at addr 0x%04x (size 0x%04x)", section_index, addr,
+ size);
+
+ if (data == NULL)
+ return ERROR_FAIL;
+
+ /* Copy section contents to local buffer */
+ ret = image_read_section(firmware_image, section_index, 0, size, data,
+ &size_read);
+
+ if ((ret != ERROR_OK) || (size_read != size)) {
+ /* Propagating the return code would return '0' (misleadingly indicating
+ * successful execution of the function) if only the size check fails. */
+ return ERROR_FAIL;
+ }
+
+ bytes_remaining = size;
+
+ /* Send section data in chunks of up to 64 bytes to ULINK */
+ while (bytes_remaining > 0) {
+ if (bytes_remaining > 64)
+ chunk_size = 64;
+ else
+ chunk_size = bytes_remaining;
+
+ ret = libusb_control_transfer(device->usb_device_handle,
+ (LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE),
+ REQUEST_FIRMWARE_LOAD, addr, FIRMWARE_ADDR, (unsigned char *)data_ptr,
+ chunk_size, USB_TIMEOUT);
+
+ if (ret != (int)chunk_size) {
+ /* Abort if libusb sent less data than requested */
+ return ERROR_FAIL;
+ }
+
+ bytes_remaining -= chunk_size;
+ addr += chunk_size;
+ data_ptr += chunk_size;
+ }
+
+ return ERROR_OK;
}
/************************** Generic helper functions **************************/
*/
void ulink_print_signal_states(uint8_t input_signals, uint8_t output_signals)
{
- LOG_INFO("ULINK signal states: TDI: %i, TDO: %i, TMS: %i, TCK: %i, TRST: %i,"
- " SRST: %i",
- (output_signals & SIGNAL_TDI ? 1 : 0),
- (input_signals & SIGNAL_TDO ? 1 : 0),
- (output_signals & SIGNAL_TMS ? 1 : 0),
- (output_signals & SIGNAL_TCK ? 1 : 0),
- (output_signals & SIGNAL_TRST ? 0 : 1), // TRST and RESET are inverted
- (output_signals & SIGNAL_RESET ? 0 : 1)); // by hardware
+ LOG_INFO("ULINK signal states: TDI: %i, TDO: %i, TMS: %i, TCK: %i, TRST: %i,"
+ " SRST: %i",
+ (output_signals & SIGNAL_TDI ? 1 : 0),
+ (input_signals & SIGNAL_TDO ? 1 : 0),
+ (output_signals & SIGNAL_TMS ? 1 : 0),
+ (output_signals & SIGNAL_TCK ? 1 : 0),
+ (output_signals & SIGNAL_TRST ? 0 : 1),/* TRST and RESET are inverted */
+ (output_signals & SIGNAL_RESET ? 0 : 1)); /* by hardware */
}
/**************** OpenULINK command generation helper functions ***************/
* @return on success: ERROR_OK
* @return on failure: ERROR_FAIL
*/
-int ulink_allocate_payload(ulink_cmd_t *ulink_cmd, int size,
- enum ulink_payload_direction direction)
+int ulink_allocate_payload(struct ulink_cmd *ulink_cmd, int size,
+ enum ulink_payload_direction direction)
{
- uint8_t *payload;
-
- payload = calloc(size, sizeof(uint8_t));
-
- if (payload == NULL) {
- LOG_ERROR("Could not allocate OpenULINK command payload: out of memory");
- return ERROR_FAIL;
- }
-
- switch (direction) {
- case PAYLOAD_DIRECTION_OUT:
- if (ulink_cmd->payload_out != NULL) {
- LOG_ERROR("BUG: Duplicate payload allocation for OpenULINK command");
- return ERROR_FAIL;
- }
- else {
- ulink_cmd->payload_out = payload;
- ulink_cmd->payload_out_size = size;
- }
- break;
- case PAYLOAD_DIRECTION_IN:
- if (ulink_cmd->payload_in_start != NULL) {
- LOG_ERROR("BUG: Duplicate payload allocation for OpenULINK command");
- return ERROR_FAIL;
- }
- else {
- ulink_cmd->payload_in_start = payload;
- ulink_cmd->payload_in = payload;
- ulink_cmd->payload_in_size = size;
-
- /* By default, free payload_in_start in ulink_clear_queue(). Commands
- * that do not want this behavior (e. g. split scans) must turn it off
- * separately! */
- ulink_cmd->free_payload_in_start = true;
- }
- break;
- }
-
- return ERROR_OK;
+ uint8_t *payload;
+
+ payload = calloc(size, sizeof(uint8_t));
+
+ if (payload == NULL) {
+ LOG_ERROR("Could not allocate OpenULINK command payload: out of memory");
+ return ERROR_FAIL;
+ }
+
+ switch (direction) {
+ case PAYLOAD_DIRECTION_OUT:
+ if (ulink_cmd->payload_out != NULL) {
+ LOG_ERROR("BUG: Duplicate payload allocation for OpenULINK command");
+ free(payload);
+ return ERROR_FAIL;
+ } else {
+ ulink_cmd->payload_out = payload;
+ ulink_cmd->payload_out_size = size;
+ }
+ break;
+ case PAYLOAD_DIRECTION_IN:
+ if (ulink_cmd->payload_in_start != NULL) {
+ LOG_ERROR("BUG: Duplicate payload allocation for OpenULINK command");
+ free(payload);
+ return ERROR_FAIL;
+ } else {
+ ulink_cmd->payload_in_start = payload;
+ ulink_cmd->payload_in = payload;
+ ulink_cmd->payload_in_size = size;
+
+ /* By default, free payload_in_start in ulink_clear_queue(). Commands
+ * that do not want this behavior (e. g. split scans) must turn it off
+ * separately! */
+ ulink_cmd->free_payload_in_start = true;
+ }
+ break;
+ }
+
+ return ERROR_OK;
}
/****************** OpenULINK command queue helper functions ******************/
* direction.
*/
int ulink_get_queue_size(struct ulink *device,
- enum ulink_payload_direction direction)
+ enum ulink_payload_direction direction)
{
- ulink_cmd_t *current = device->queue_start;
- int sum = 0;
-
- while (current != NULL) {
- switch (direction) {
- case PAYLOAD_DIRECTION_OUT:
- sum += current->payload_out_size + 1; // + 1 byte for Command ID
- break;
- case PAYLOAD_DIRECTION_IN:
- sum += current->payload_in_size;
- break;
- }
-
- current = current->next;
- }
-
- return sum;
+ struct ulink_cmd *current = device->queue_start;
+ int sum = 0;
+
+ while (current != NULL) {
+ switch (direction) {
+ case PAYLOAD_DIRECTION_OUT:
+ sum += current->payload_out_size + 1; /* + 1 byte for Command ID */
+ break;
+ case PAYLOAD_DIRECTION_IN:
+ sum += current->payload_in_size;
+ break;
+ }
+
+ current = current->next;
+ }
+
+ return sum;
}
/**
*/
void ulink_clear_queue(struct ulink *device)
{
- ulink_cmd_t *current = device->queue_start;
- ulink_cmd_t *next = NULL;
-
- while (current != NULL) {
- /* Save pointer to next element */
- next = current->next;
-
- /* Free payloads: OUT payload can be freed immediately */
- free(current->payload_out);
- current->payload_out = NULL;
-
- /* IN payload MUST be freed ONLY if no other commands use the
- * payload_in_start buffer */
- if (current->free_payload_in_start == true) {
- free(current->payload_in_start);
- current->payload_in_start = NULL;
- current->payload_in = NULL;
- }
-
- /* Free queue element */
- free(current);
-
- /* Proceed with next element */
- current = next;
- }
-
- device->commands_in_queue = 0;
- device->queue_start = NULL;
- device->queue_end = NULL;
+ struct ulink_cmd *current = device->queue_start;
+ struct ulink_cmd *next = NULL;
+
+ while (current != NULL) {
+ /* Save pointer to next element */
+ next = current->next;
+
+ /* Free payloads: OUT payload can be freed immediately */
+ free(current->payload_out);
+ current->payload_out = NULL;
+
+ /* IN payload MUST be freed ONLY if no other commands use the
+ * payload_in_start buffer */
+ if (current->free_payload_in_start == true) {
+ free(current->payload_in_start);
+ current->payload_in_start = NULL;
+ current->payload_in = NULL;
+ }
+
+ /* Free queue element */
+ free(current);
+
+ /* Proceed with next element */
+ current = next;
+ }
+
+ device->commands_in_queue = 0;
+ device->queue_start = NULL;
+ device->queue_end = NULL;
}
/**
* @return on success: ERROR_OK
* @return on failure: ERROR_FAIL
*/
-int ulink_append_queue(struct ulink *device, ulink_cmd_t *ulink_cmd)
+int ulink_append_queue(struct ulink *device, struct ulink_cmd *ulink_cmd)
{
- int newsize_out, newsize_in;
- int ret;
-
- newsize_out = ulink_get_queue_size(device, PAYLOAD_DIRECTION_OUT) + 1
- + ulink_cmd->payload_out_size;
-
- newsize_in = ulink_get_queue_size(device, PAYLOAD_DIRECTION_IN)
- + ulink_cmd->payload_in_size;
-
- /* Check if the current command can be appended to the queue */
- if ((newsize_out > 64) || (newsize_in > 64)) {
- /* New command does not fit. Execute all commands in queue before starting
- * new queue with the current command as first entry. */
- ret = ulink_execute_queued_commands(device, USB_TIMEOUT);
- if (ret != ERROR_OK) {
- return ret;
- }
-
- ret = ulink_post_process_queue(device);
- if (ret != ERROR_OK) {
- return ret;
- }
-
- ulink_clear_queue(device);
- }
-
- if (device->queue_start == NULL) {
- /* Queue was empty */
- device->commands_in_queue = 1;
-
- device->queue_start = ulink_cmd;
- device->queue_end = ulink_cmd;
- }
- else {
- /* There are already commands in the queue */
- device->commands_in_queue++;
-
- device->queue_end->next = ulink_cmd;
- device->queue_end = ulink_cmd;
- }
-
- return ERROR_OK;
+ int newsize_out, newsize_in;
+ int ret;
+
+ newsize_out = ulink_get_queue_size(device, PAYLOAD_DIRECTION_OUT) + 1
+ + ulink_cmd->payload_out_size;
+
+ newsize_in = ulink_get_queue_size(device, PAYLOAD_DIRECTION_IN)
+ + ulink_cmd->payload_in_size;
+
+ /* Check if the current command can be appended to the queue */
+ if ((newsize_out > 64) || (newsize_in > 64)) {
+ /* New command does not fit. Execute all commands in queue before starting
+ * new queue with the current command as first entry. */
+ ret = ulink_execute_queued_commands(device, USB_TIMEOUT);
+ if (ret != ERROR_OK)
+ return ret;
+
+ ret = ulink_post_process_queue(device);
+ if (ret != ERROR_OK)
+ return ret;
+
+ ulink_clear_queue(device);
+ }
+
+ if (device->queue_start == NULL) {
+ /* Queue was empty */
+ device->commands_in_queue = 1;
+
+ device->queue_start = ulink_cmd;
+ device->queue_end = ulink_cmd;
+ } else {
+ /* There are already commands in the queue */
+ device->commands_in_queue++;
+
+ device->queue_end->next = ulink_cmd;
+ device->queue_end = ulink_cmd;
+ }
+
+ return ERROR_OK;
}
/**
*/
int ulink_execute_queued_commands(struct ulink *device, int timeout)
{
- ulink_cmd_t *current;
- int ret, i, index_out, index_in, count_out, count_in;
- uint8_t buffer[64];
+ struct ulink_cmd *current;
+ int ret, i, index_out, index_in, count_out, count_in, transferred;
+ uint8_t buffer[64];
#ifdef _DEBUG_JTAG_IO_
- ulink_print_queue(device);
+ ulink_print_queue(device);
#endif
- index_out = 0;
- count_out = 0;
- count_in = 0;
-
- for (current = device->queue_start; current; current = current->next) {
- /* Add command to packet */
- buffer[index_out] = current->id;
- index_out++;
- count_out++;
-
- for (i = 0; i < current->payload_out_size; i++) {
- buffer[index_out + i] = current->payload_out[i];
- }
- index_out += current->payload_out_size;
- count_in += current->payload_in_size;
- count_out += current->payload_out_size;
- }
-
- /* Send packet to ULINK */
- ret = usb_bulk_write(device->usb_handle, (2 | USB_ENDPOINT_OUT),
- (char *)buffer, count_out, timeout);
- if (ret < 0) {
- return ERROR_FAIL;
- }
- if (ret != count_out) {
- return ERROR_FAIL;
- }
-
- /* Wait for response if commands contain IN payload data */
- if (count_in > 0) {
- ret = usb_bulk_read(device->usb_handle, (2 | USB_ENDPOINT_IN),
- (char *)buffer, 64, timeout);
- if (ret < 0) {
- return ERROR_FAIL;
- }
- if (ret != count_in) {
- return ERROR_FAIL;
- }
-
- /* Write back IN payload data */
- index_in = 0;
- for (current = device->queue_start; current; current = current->next) {
- for (i = 0; i < current->payload_in_size; i++) {
- current->payload_in[i] = buffer[index_in];
- index_in++;
- }
- }
- }
-
- return ERROR_OK;
+ index_out = 0;
+ count_out = 0;
+ count_in = 0;
+
+ for (current = device->queue_start; current; current = current->next) {
+ /* Add command to packet */
+ buffer[index_out] = current->id;
+ index_out++;
+ count_out++;
+
+ for (i = 0; i < current->payload_out_size; i++)
+ buffer[index_out + i] = current->payload_out[i];
+ index_out += current->payload_out_size;
+ count_in += current->payload_in_size;
+ count_out += current->payload_out_size;
+ }
+
+ /* Send packet to ULINK */
+ ret = libusb_bulk_transfer(device->usb_device_handle, (2 | LIBUSB_ENDPOINT_OUT),
+ (unsigned char *)buffer, count_out, &transferred, timeout);
+ if (ret != 0)
+ return ERROR_FAIL;
+ if (transferred != count_out)
+ return ERROR_FAIL;
+
+ /* Wait for response if commands contain IN payload data */
+ if (count_in > 0) {
+ ret = libusb_bulk_transfer(device->usb_device_handle, (2 | LIBUSB_ENDPOINT_IN),
+ (unsigned char *)buffer, 64, &transferred, timeout);
+ if (ret != 0)
+ return ERROR_FAIL;
+ if (transferred != count_in)
+ return ERROR_FAIL;
+
+ /* Write back IN payload data */
+ index_in = 0;
+ for (current = device->queue_start; current; current = current->next) {
+ for (i = 0; i < current->payload_in_size; i++) {
+ current->payload_in[i] = buffer[index_in];
+ index_in++;
+ }
+ }
+ }
+
+ return ERROR_OK;
}
#ifdef _DEBUG_JTAG_IO_
* @param id the OpenULINK command ID.
* @return the corresponding human-readable string.
*/
-const char * ulink_cmd_id_string(uint8_t id)
+const char *ulink_cmd_id_string(uint8_t id)
{
- switch (id) {
- case CMD_SCAN_IN:
- return "CMD_SCAN_IN";
- break;
- case CMD_SLOW_SCAN_IN:
- return "CMD_SLOW_SCAN_IN";
- break;
- case CMD_SCAN_OUT:
- return "CMD_SCAN_OUT";
- break;
- case CMD_SLOW_SCAN_OUT:
- return "CMD_SLOW_SCAN_OUT";
- break;
- case CMD_SCAN_IO:
- return "CMD_SCAN_IO";
- break;
- case CMD_SLOW_SCAN_IO:
- return "CMD_SLOW_SCAN_IO";
- break;
- case CMD_CLOCK_TMS:
- return "CMD_CLOCK_TMS";
- break;
- case CMD_SLOW_CLOCK_TMS:
- return "CMD_SLOW_CLOCK_TMS";
- break;
- case CMD_CLOCK_TCK:
- return "CMD_CLOCK_TCK";
- break;
- case CMD_SLEEP_US:
- return "CMD_SLEEP_US";
- break;
- case CMD_SLEEP_MS:
- return "CMD_SLEEP_MS";
- break;
- case CMD_GET_SIGNALS:
- return "CMD_GET_SIGNALS";
- break;
- case CMD_SET_SIGNALS:
- return "CMD_SET_SIGNALS";
- break;
- case CMD_CONFIGURE_TCK_FREQ:
- return "CMD_CONFIGURE_TCK_FREQ";
- break;
- case CMD_SET_LEDS:
- return "CMD_SET_LEDS";
- break;
- case CMD_TEST:
- return "CMD_TEST";
- break;
- default:
- return "CMD_UNKNOWN";
- break;
- }
+ switch (id) {
+ case CMD_SCAN_IN:
+ return "CMD_SCAN_IN";
+ break;
+ case CMD_SLOW_SCAN_IN:
+ return "CMD_SLOW_SCAN_IN";
+ break;
+ case CMD_SCAN_OUT:
+ return "CMD_SCAN_OUT";
+ break;
+ case CMD_SLOW_SCAN_OUT:
+ return "CMD_SLOW_SCAN_OUT";
+ break;
+ case CMD_SCAN_IO:
+ return "CMD_SCAN_IO";
+ break;
+ case CMD_SLOW_SCAN_IO:
+ return "CMD_SLOW_SCAN_IO";
+ break;
+ case CMD_CLOCK_TMS:
+ return "CMD_CLOCK_TMS";
+ break;
+ case CMD_SLOW_CLOCK_TMS:
+ return "CMD_SLOW_CLOCK_TMS";
+ break;
+ case CMD_CLOCK_TCK:
+ return "CMD_CLOCK_TCK";
+ break;
+ case CMD_SLOW_CLOCK_TCK:
+ return "CMD_SLOW_CLOCK_TCK";
+ break;
+ case CMD_SLEEP_US:
+ return "CMD_SLEEP_US";
+ break;
+ case CMD_SLEEP_MS:
+ return "CMD_SLEEP_MS";
+ break;
+ case CMD_GET_SIGNALS:
+ return "CMD_GET_SIGNALS";
+ break;
+ case CMD_SET_SIGNALS:
+ return "CMD_SET_SIGNALS";
+ break;
+ case CMD_CONFIGURE_TCK_FREQ:
+ return "CMD_CONFIGURE_TCK_FREQ";
+ break;
+ case CMD_SET_LEDS:
+ return "CMD_SET_LEDS";
+ break;
+ case CMD_TEST:
+ return "CMD_TEST";
+ break;
+ default:
+ return "CMD_UNKNOWN";
+ break;
+ }
}
/**
*
* @param ulink_cmd pointer to OpenULINK command.
*/
-void ulink_print_command(ulink_cmd_t *ulink_cmd)
+void ulink_print_command(struct ulink_cmd *ulink_cmd)
{
- int i;
+ int i;
- printf(" %-22s | OUT size = %i, bytes = 0x", ulink_cmd_id_string(ulink_cmd->id),
- ulink_cmd->payload_out_size);
+ printf(" %-22s | OUT size = %i, bytes = 0x",
+ ulink_cmd_id_string(ulink_cmd->id), ulink_cmd->payload_out_size);
- for (i = 0; i < ulink_cmd->payload_out_size; i++) {
- printf("%02X ", ulink_cmd->payload_out[i]);
- }
- printf("\n | IN size = %i\n", ulink_cmd->payload_in_size);
+ for (i = 0; i < ulink_cmd->payload_out_size; i++)
+ printf("%02X ", ulink_cmd->payload_out[i]);
+ printf("\n | IN size = %i\n",
+ ulink_cmd->payload_in_size);
}
/**
*/
void ulink_print_queue(struct ulink *device)
{
- ulink_cmd_t *current;
+ struct ulink_cmd *current;
- printf("OpenULINK command queue:\n");
+ printf("OpenULINK command queue:\n");
- for (current = device->queue_start; current; current = current->next) {
- ulink_print_command(current);
- }
+ for (current = device->queue_start; current; current = current->next)
+ ulink_print_command(current);
}
-#endif /* _DEBUG_JTAG_IO_ */
+#endif /* _DEBUG_JTAG_IO_ */
/**
* Perform JTAG scan
* @return on failure: ERROR_FAIL
*/
int ulink_append_scan_cmd(struct ulink *device, enum scan_type scan_type,
- int scan_size_bits, uint8_t *tdi, uint8_t *tdo_start, uint8_t *tdo,
- uint8_t tms_count_start, uint8_t tms_sequence_start, uint8_t tms_count_end,
- uint8_t tms_sequence_end, struct jtag_command *origin, bool postprocess)
+ int scan_size_bits, uint8_t *tdi, uint8_t *tdo_start, uint8_t *tdo,
+ uint8_t tms_count_start, uint8_t tms_sequence_start, uint8_t tms_count_end,
+ uint8_t tms_sequence_end, struct jtag_command *origin, bool postprocess)
{
- ulink_cmd_t *cmd = calloc(1, sizeof(ulink_cmd_t));
- int ret, i, scan_size_bytes;
- uint8_t bits_last_byte;
-
- if (cmd == NULL) {
- return ERROR_FAIL;
- }
-
- /* Check size of command. USB buffer can hold 64 bytes, 1 byte is command ID,
- * 5 bytes are setup data -> 58 remaining payload bytes for TDI data */
- if (scan_size_bits > (58 * 8)) {
- LOG_ERROR("BUG: Tried to create CMD_SCAN_IO OpenULINK command with too"
- " large payload");
- return ERROR_FAIL;
- }
-
- scan_size_bytes = DIV_ROUND_UP(scan_size_bits, 8);
-
- bits_last_byte = scan_size_bits % 8;
- if (bits_last_byte == 0) {
- bits_last_byte = 8;
- }
-
- /* Allocate out_payload depending on scan type */
- // TODO: set command ID depending on interface speed settings (slow scan)
- switch (scan_type) {
- case SCAN_IN:
- cmd->id = CMD_SCAN_IN;
- ret = ulink_allocate_payload(cmd, 5, PAYLOAD_DIRECTION_OUT);
- break;
- case SCAN_OUT:
- cmd->id = CMD_SCAN_OUT;
- ret = ulink_allocate_payload(cmd, scan_size_bytes + 5, PAYLOAD_DIRECTION_OUT);
- break;
- case SCAN_IO:
- cmd->id = CMD_SCAN_IO;
- ret = ulink_allocate_payload(cmd, scan_size_bytes + 5, PAYLOAD_DIRECTION_OUT);
- break;
- default:
- LOG_ERROR("BUG: ulink_append_scan_cmd() encountered an unknown scan type");
- ret = ERROR_FAIL;
- break;
- }
-
- if (ret != ERROR_OK) {
- return ret;
- }
-
- /* Build payload_out that is common to all scan types */
- cmd->payload_out[0] = scan_size_bytes & 0xFF;
- cmd->payload_out[1] = bits_last_byte & 0xFF;
- cmd->payload_out[2] = ((tms_count_start & 0x0F) << 4) | (tms_count_end & 0x0F);
- cmd->payload_out[3] = tms_sequence_start;
- cmd->payload_out[4] = tms_sequence_end;
-
- /* Setup payload_out for types with OUT transfer */
- if ((scan_type == SCAN_OUT) || (scan_type == SCAN_IO)) {
- for (i = 0; i < scan_size_bytes; i++) {
- cmd->payload_out[i + 5] = tdi[i];
- }
- }
-
- /* Setup payload_in pointers for types with IN transfer */
- if ((scan_type == SCAN_IN) || (scan_type == SCAN_IO)) {
- cmd->payload_in_start = tdo_start;
- cmd->payload_in = tdo;
- cmd->payload_in_size = scan_size_bytes;
- }
-
- cmd->needs_postprocessing = postprocess;
- cmd->cmd_origin = origin;
-
- /* For scan commands, we free payload_in_start only when the command is
- * the last in a series of split commands or a stand-alone command */
- cmd->free_payload_in_start = postprocess;
-
- return ulink_append_queue(device, cmd);
+ struct ulink_cmd *cmd = calloc(1, sizeof(struct ulink_cmd));
+ int ret, i, scan_size_bytes;
+ uint8_t bits_last_byte;
+
+ if (cmd == NULL)
+ return ERROR_FAIL;
+
+ /* Check size of command. USB buffer can hold 64 bytes, 1 byte is command ID,
+ * 5 bytes are setup data -> 58 remaining payload bytes for TDI data */
+ if (scan_size_bits > (58 * 8)) {
+ LOG_ERROR("BUG: Tried to create CMD_SCAN_IO OpenULINK command with too"
+ " large payload");
+ free(cmd);
+ return ERROR_FAIL;
+ }
+
+ scan_size_bytes = DIV_ROUND_UP(scan_size_bits, 8);
+
+ bits_last_byte = scan_size_bits % 8;
+ if (bits_last_byte == 0)
+ bits_last_byte = 8;
+
+ /* Allocate out_payload depending on scan type */
+ switch (scan_type) {
+ case SCAN_IN:
+ if (device->delay_scan_in < 0)
+ cmd->id = CMD_SCAN_IN;
+ else
+ cmd->id = CMD_SLOW_SCAN_IN;
+ ret = ulink_allocate_payload(cmd, 5, PAYLOAD_DIRECTION_OUT);
+ break;
+ case SCAN_OUT:
+ if (device->delay_scan_out < 0)
+ cmd->id = CMD_SCAN_OUT;
+ else
+ cmd->id = CMD_SLOW_SCAN_OUT;
+ ret = ulink_allocate_payload(cmd, scan_size_bytes + 5, PAYLOAD_DIRECTION_OUT);
+ break;
+ case SCAN_IO:
+ if (device->delay_scan_io < 0)
+ cmd->id = CMD_SCAN_IO;
+ else
+ cmd->id = CMD_SLOW_SCAN_IO;
+ ret = ulink_allocate_payload(cmd, scan_size_bytes + 5, PAYLOAD_DIRECTION_OUT);
+ break;
+ default:
+ LOG_ERROR("BUG: ulink_append_scan_cmd() encountered an unknown scan type");
+ ret = ERROR_FAIL;
+ break;
+ }
+
+ if (ret != ERROR_OK) {
+ free(cmd);
+ return ret;
+ }
+
+ /* Build payload_out that is common to all scan types */
+ cmd->payload_out[0] = scan_size_bytes & 0xFF;
+ cmd->payload_out[1] = bits_last_byte & 0xFF;
+ cmd->payload_out[2] = ((tms_count_start & 0x0F) << 4) | (tms_count_end & 0x0F);
+ cmd->payload_out[3] = tms_sequence_start;
+ cmd->payload_out[4] = tms_sequence_end;
+
+ /* Setup payload_out for types with OUT transfer */
+ if ((scan_type == SCAN_OUT) || (scan_type == SCAN_IO)) {
+ for (i = 0; i < scan_size_bytes; i++)
+ cmd->payload_out[i + 5] = tdi[i];
+ }
+
+ /* Setup payload_in pointers for types with IN transfer */
+ if ((scan_type == SCAN_IN) || (scan_type == SCAN_IO)) {
+ cmd->payload_in_start = tdo_start;
+ cmd->payload_in = tdo;
+ cmd->payload_in_size = scan_size_bytes;
+ }
+
+ cmd->needs_postprocessing = postprocess;
+ cmd->cmd_origin = origin;
+
+ /* For scan commands, we free payload_in_start only when the command is
+ * the last in a series of split commands or a stand-alone command */
+ cmd->free_payload_in_start = postprocess;
+
+ return ulink_append_queue(device, cmd);
}
/**
* @return on failure: ERROR_FAIL
*/
int ulink_append_clock_tms_cmd(struct ulink *device, uint8_t count,
- uint8_t sequence)
+ uint8_t sequence)
{
- ulink_cmd_t *cmd = calloc(1, sizeof(ulink_cmd_t));
- int ret;
+ struct ulink_cmd *cmd = calloc(1, sizeof(struct ulink_cmd));
+ int ret;
- if (cmd == NULL) {
- return ERROR_FAIL;
- }
+ if (cmd == NULL)
+ return ERROR_FAIL;
- cmd->id = CMD_CLOCK_TMS;
+ if (device->delay_clock_tms < 0)
+ cmd->id = CMD_CLOCK_TMS;
+ else
+ cmd->id = CMD_SLOW_CLOCK_TMS;
- /* CMD_CLOCK_TMS has two OUT payload bytes and zero IN payload bytes */
- ret = ulink_allocate_payload(cmd, 2, PAYLOAD_DIRECTION_OUT);
- if (ret != ERROR_OK) {
- return ret;
- }
+ /* CMD_CLOCK_TMS has two OUT payload bytes and zero IN payload bytes */
+ ret = ulink_allocate_payload(cmd, 2, PAYLOAD_DIRECTION_OUT);
+ if (ret != ERROR_OK) {
+ free(cmd);
+ return ret;
+ }
- cmd->payload_out[0] = count;
- cmd->payload_out[1] = sequence;
+ cmd->payload_out[0] = count;
+ cmd->payload_out[1] = sequence;
- return ulink_append_queue(device, cmd);
+ return ulink_append_queue(device, cmd);
}
/**
*/
int ulink_append_clock_tck_cmd(struct ulink *device, uint16_t count)
{
- ulink_cmd_t *cmd = calloc(1, sizeof(ulink_cmd_t));
- int ret;
+ struct ulink_cmd *cmd = calloc(1, sizeof(struct ulink_cmd));
+ int ret;
- if (cmd == NULL) {
- return ERROR_FAIL;
- }
+ if (cmd == NULL)
+ return ERROR_FAIL;
- cmd->id = CMD_CLOCK_TCK;
+ if (device->delay_clock_tck < 0)
+ cmd->id = CMD_CLOCK_TCK;
+ else
+ cmd->id = CMD_SLOW_CLOCK_TCK;
- /* CMD_CLOCK_TCK has two OUT payload bytes and zero IN payload bytes */
- ret = ulink_allocate_payload(cmd, 2, PAYLOAD_DIRECTION_OUT);
- if (ret != ERROR_OK) {
- return ret;
- }
+ /* CMD_CLOCK_TCK has two OUT payload bytes and zero IN payload bytes */
+ ret = ulink_allocate_payload(cmd, 2, PAYLOAD_DIRECTION_OUT);
+ if (ret != ERROR_OK) {
+ free(cmd);
+ return ret;
+ }
- cmd->payload_out[0] = count & 0xff;
- cmd->payload_out[1] = (count >> 8) & 0xff;
+ cmd->payload_out[0] = count & 0xff;
+ cmd->payload_out[1] = (count >> 8) & 0xff;
- return ulink_append_queue(device, cmd);
+ return ulink_append_queue(device, cmd);
}
/**
*/
int ulink_append_get_signals_cmd(struct ulink *device)
{
- ulink_cmd_t *cmd = calloc(1, sizeof(ulink_cmd_t));
- int ret;
+ struct ulink_cmd *cmd = calloc(1, sizeof(struct ulink_cmd));
+ int ret;
- if (cmd == NULL) {
- return ERROR_FAIL;
- }
+ if (cmd == NULL)
+ return ERROR_FAIL;
- cmd->id = CMD_GET_SIGNALS;
- cmd->needs_postprocessing = true;
+ cmd->id = CMD_GET_SIGNALS;
+ cmd->needs_postprocessing = true;
- /* CMD_GET_SIGNALS has two IN payload bytes */
- ret = ulink_allocate_payload(cmd, 2, PAYLOAD_DIRECTION_IN);
+ /* CMD_GET_SIGNALS has two IN payload bytes */
+ ret = ulink_allocate_payload(cmd, 2, PAYLOAD_DIRECTION_IN);
- if (ret != ERROR_OK) {
- return ret;
- }
+ if (ret != ERROR_OK) {
+ free(cmd);
+ return ret;
+ }
- return ulink_append_queue(device, cmd);
+ return ulink_append_queue(device, cmd);
}
/**
* @return on failure: ERROR_FAIL
*/
int ulink_append_set_signals_cmd(struct ulink *device, uint8_t low,
- uint8_t high)
+ uint8_t high)
{
- ulink_cmd_t *cmd = calloc(1, sizeof(ulink_cmd_t));
- int ret;
+ struct ulink_cmd *cmd = calloc(1, sizeof(struct ulink_cmd));
+ int ret;
- if (cmd == NULL) {
- return ERROR_FAIL;
- }
+ if (cmd == NULL)
+ return ERROR_FAIL;
- cmd->id = CMD_SET_SIGNALS;
+ cmd->id = CMD_SET_SIGNALS;
- /* CMD_SET_SIGNALS has two OUT payload bytes and zero IN payload bytes */
- ret = ulink_allocate_payload(cmd, 2, PAYLOAD_DIRECTION_OUT);
+ /* CMD_SET_SIGNALS has two OUT payload bytes and zero IN payload bytes */
+ ret = ulink_allocate_payload(cmd, 2, PAYLOAD_DIRECTION_OUT);
- if (ret != ERROR_OK) {
- return ret;
- }
+ if (ret != ERROR_OK) {
+ free(cmd);
+ return ret;
+ }
- cmd->payload_out[0] = low;
- cmd->payload_out[1] = high;
+ cmd->payload_out[0] = low;
+ cmd->payload_out[1] = high;
- return ulink_append_queue(device, cmd);
+ return ulink_append_queue(device, cmd);
}
/**
*/
int ulink_append_sleep_cmd(struct ulink *device, uint32_t us)
{
- ulink_cmd_t *cmd = calloc(1, sizeof(ulink_cmd_t));
- int ret;
+ struct ulink_cmd *cmd = calloc(1, sizeof(struct ulink_cmd));
+ int ret;
- if (cmd == NULL) {
- return ERROR_FAIL;
- }
+ if (cmd == NULL)
+ return ERROR_FAIL;
- cmd->id = CMD_SLEEP_US;
+ cmd->id = CMD_SLEEP_US;
- /* CMD_SLEEP_US has two OUT payload bytes and zero IN payload bytes */
- ret = ulink_allocate_payload(cmd, 2, PAYLOAD_DIRECTION_OUT);
+ /* CMD_SLEEP_US has two OUT payload bytes and zero IN payload bytes */
+ ret = ulink_allocate_payload(cmd, 2, PAYLOAD_DIRECTION_OUT);
- if (ret != ERROR_OK) {
- return ret;
- }
+ if (ret != ERROR_OK) {
+ free(cmd);
+ return ret;
+ }
- cmd->payload_out[0] = us & 0x00ff;
- cmd->payload_out[1] = (us >> 8) & 0x00ff;
+ cmd->payload_out[0] = us & 0x00ff;
+ cmd->payload_out[1] = (us >> 8) & 0x00ff;
- return ulink_append_queue(device, cmd);
+ return ulink_append_queue(device, cmd);
}
/**
* Set TCK delay counters
*
* @param device pointer to struct ulink identifying ULINK driver instance.
- * @param delay_scan delay count top value in jtag_slow_scan() functions
- * @param delay_tck delay count top value in jtag_clock_tck() function
- * @param delay_tms delay count top value in jtag_slow_clock_tms() function
+ * @param delay_scan_in delay count top value in jtag_slow_scan_in() function.
+ * @param delay_scan_out delay count top value in jtag_slow_scan_out() function.
+ * @param delay_scan_io delay count top value in jtag_slow_scan_io() function.
+ * @param delay_tck delay count top value in jtag_clock_tck() function.
+ * @param delay_tms delay count top value in jtag_slow_clock_tms() function.
* @return on success: ERROR_OK
* @return on failure: ERROR_FAIL
*/
-int ulink_append_configure_tck_cmd(struct ulink *device, uint8_t delay_scan,
- uint8_t delay_tck, uint8_t delay_tms)
+int ulink_append_configure_tck_cmd(struct ulink *device, int delay_scan_in,
+ int delay_scan_out, int delay_scan_io, int delay_tck, int delay_tms)
{
- ulink_cmd_t *cmd = calloc(1, sizeof(ulink_cmd_t));
- int ret;
-
- if (cmd == NULL) {
- return ERROR_FAIL;
- }
-
- cmd->id = CMD_CONFIGURE_TCK_FREQ;
-
- /* CMD_CONFIGURE_TCK_FREQ has three OUT payload bytes and zero
- * IN payload bytes */
- ret = ulink_allocate_payload(cmd, 3, PAYLOAD_DIRECTION_OUT);
- if (ret != ERROR_OK) {
- return ret;
- }
-
- cmd->payload_out[0] = delay_scan;
- cmd->payload_out[1] = delay_tck;
- cmd->payload_out[2] = delay_tms;
-
- return ulink_append_queue(device, cmd);
+ struct ulink_cmd *cmd = calloc(1, sizeof(struct ulink_cmd));
+ int ret;
+
+ if (cmd == NULL)
+ return ERROR_FAIL;
+
+ cmd->id = CMD_CONFIGURE_TCK_FREQ;
+
+ /* CMD_CONFIGURE_TCK_FREQ has five OUT payload bytes and zero
+ * IN payload bytes */
+ ret = ulink_allocate_payload(cmd, 5, PAYLOAD_DIRECTION_OUT);
+ if (ret != ERROR_OK) {
+ free(cmd);
+ return ret;
+ }
+
+ if (delay_scan_in < 0)
+ cmd->payload_out[0] = 0;
+ else
+ cmd->payload_out[0] = (uint8_t)delay_scan_in;
+
+ if (delay_scan_out < 0)
+ cmd->payload_out[1] = 0;
+ else
+ cmd->payload_out[1] = (uint8_t)delay_scan_out;
+
+ if (delay_scan_io < 0)
+ cmd->payload_out[2] = 0;
+ else
+ cmd->payload_out[2] = (uint8_t)delay_scan_io;
+
+ if (delay_tck < 0)
+ cmd->payload_out[3] = 0;
+ else
+ cmd->payload_out[3] = (uint8_t)delay_tck;
+
+ if (delay_tms < 0)
+ cmd->payload_out[4] = 0;
+ else
+ cmd->payload_out[4] = (uint8_t)delay_tms;
+
+ return ulink_append_queue(device, cmd);
}
/**
*/
int ulink_append_led_cmd(struct ulink *device, uint8_t led_state)
{
- ulink_cmd_t *cmd = calloc(1, sizeof(ulink_cmd_t));
- int ret;
+ struct ulink_cmd *cmd = calloc(1, sizeof(struct ulink_cmd));
+ int ret;
- if (cmd == NULL) {
- return ERROR_FAIL;
- }
+ if (cmd == NULL)
+ return ERROR_FAIL;
- cmd->id = CMD_SET_LEDS;
+ cmd->id = CMD_SET_LEDS;
- /* CMD_SET_LEDS has one OUT payload byte and zero IN payload bytes */
- ret = ulink_allocate_payload(cmd, 1, PAYLOAD_DIRECTION_OUT);
- if (ret != ERROR_OK) {
- return ret;
- }
+ /* CMD_SET_LEDS has one OUT payload byte and zero IN payload bytes */
+ ret = ulink_allocate_payload(cmd, 1, PAYLOAD_DIRECTION_OUT);
+ if (ret != ERROR_OK) {
+ free(cmd);
+ return ret;
+ }
- cmd->payload_out[0] = led_state;
+ cmd->payload_out[0] = led_state;
- return ulink_append_queue(device, cmd);
+ return ulink_append_queue(device, cmd);
}
/**
*/
int ulink_append_test_cmd(struct ulink *device)
{
- ulink_cmd_t *cmd = calloc(1, sizeof(ulink_cmd_t));
- int ret;
+ struct ulink_cmd *cmd = calloc(1, sizeof(struct ulink_cmd));
+ int ret;
- if (cmd == NULL) {
- return ERROR_FAIL;
- }
+ if (cmd == NULL)
+ return ERROR_FAIL;
- cmd->id = CMD_TEST;
+ cmd->id = CMD_TEST;
- /* CMD_TEST has one OUT payload byte and zero IN payload bytes */
- ret = ulink_allocate_payload(cmd, 1, PAYLOAD_DIRECTION_OUT);
- if (ret != ERROR_OK) {
- return ret;
- }
+ /* CMD_TEST has one OUT payload byte and zero IN payload bytes */
+ ret = ulink_allocate_payload(cmd, 1, PAYLOAD_DIRECTION_OUT);
+ if (ret != ERROR_OK) {
+ free(cmd);
+ return ret;
+ }
- cmd->payload_out[0] = 0xAA;
+ cmd->payload_out[0] = 0xAA;
+
+ return ulink_append_queue(device, cmd);
+}
+
+/****************** OpenULINK TCK frequency helper functions ******************/
+
+/**
+ * Calculate delay values for a given TCK frequency.
+ *
+ * The OpenULINK firmware uses five different speed values for different
+ * commands. These speed values are calculated in these functions.
+ *
+ * The five different commands which support variable TCK frequency are
+ * implemented twice in the firmware:
+ * 1. Maximum possible frequency without any artificial delay
+ * 2. Variable frequency with artificial linear delay loop
+ *
+ * To set the ULINK to maximum frequency, it is only neccessary to use the
+ * corresponding command IDs. To set the ULINK to a lower frequency, the
+ * delay loop top values have to be calculated first. Then, a
+ * CMD_CONFIGURE_TCK_FREQ command needs to be sent to the ULINK device.
+ *
+ * The delay values are described by linear equations:
+ * t = k * x + d
+ * (t = period, k = constant, x = delay value, d = constant)
+ *
+ * Thus, the delay can be calculated as in the following equation:
+ * x = (t - d) / k
+ *
+ * The constants in these equations have been determined and validated by
+ * measuring the frequency resulting from different delay values.
+ *
+ * @param type for which command to calculate the delay value.
+ * @param f TCK frequency for which to calculate the delay value in Hz.
+ * @param delay where to store resulting delay value.
+ * @return on success: ERROR_OK
+ * @return on failure: ERROR_FAIL
+ */
+int ulink_calculate_delay(enum ulink_delay_type type, long f, int *delay)
+{
+ float t, x, x_ceil;
+
+ /* Calculate period of requested TCK frequency */
+ t = 1.0 / (float)(f);
+
+ switch (type) {
+ case DELAY_CLOCK_TCK:
+ x = (t - (float)(6E-6)) / (float)(4E-6);
+ break;
+ case DELAY_CLOCK_TMS:
+ x = (t - (float)(8.5E-6)) / (float)(4E-6);
+ break;
+ case DELAY_SCAN_IN:
+ x = (t - (float)(8.8308E-6)) / (float)(4E-6);
+ break;
+ case DELAY_SCAN_OUT:
+ x = (t - (float)(1.0527E-5)) / (float)(4E-6);
+ break;
+ case DELAY_SCAN_IO:
+ x = (t - (float)(1.3132E-5)) / (float)(4E-6);
+ break;
+ default:
+ return ERROR_FAIL;
+ break;
+ }
+
+ /* Check if the delay value is negative. This happens when a frequency is
+ * requested that is too high for the delay loop implementation. In this
+ * case, set delay value to zero. */
+ if (x < 0)
+ x = 0;
+
+ /* We need to convert the exact delay value to an integer. Therefore, we
+ * round the exact value UP to ensure that the resulting frequency is NOT
+ * higher than the requested frequency. */
+ x_ceil = ceilf(x);
+
+ /* Check if the value is within limits */
+ if (x_ceil > 255)
+ return ERROR_FAIL;
+
+ *delay = (int)x_ceil;
+
+ return ERROR_OK;
+}
- return ulink_append_queue(device, cmd);
+/**
+ * Calculate frequency for a given delay value.
+ *
+ * Similar to the #ulink_calculate_delay function, this function calculates the
+ * TCK frequency for a given delay value by using linear equations of the form:
+ * t = k * x + d
+ * (t = period, k = constant, x = delay value, d = constant)
+ *
+ * @param type for which command to calculate the delay value.
+ * @param delay delay value for which to calculate the resulting TCK frequency.
+ * @param f where to store the resulting TCK frequency.
+ * @return on success: ERROR_OK
+ * @return on failure: ERROR_FAIL
+ */
+int ulink_calculate_frequency(enum ulink_delay_type type, int delay, long *f)
+{
+ float t, f_float, f_rounded;
+
+ if (delay > 255)
+ return ERROR_FAIL;
+
+ switch (type) {
+ case DELAY_CLOCK_TCK:
+ if (delay < 0)
+ t = (float)(2.666E-6);
+ else
+ t = (float)(4E-6) * (float)(delay) + (float)(6E-6);
+ break;
+ case DELAY_CLOCK_TMS:
+ if (delay < 0)
+ t = (float)(5.666E-6);
+ else
+ t = (float)(4E-6) * (float)(delay) + (float)(8.5E-6);
+ break;
+ case DELAY_SCAN_IN:
+ if (delay < 0)
+ t = (float)(5.5E-6);
+ else
+ t = (float)(4E-6) * (float)(delay) + (float)(8.8308E-6);
+ break;
+ case DELAY_SCAN_OUT:
+ if (delay < 0)
+ t = (float)(7.0E-6);
+ else
+ t = (float)(4E-6) * (float)(delay) + (float)(1.0527E-5);
+ break;
+ case DELAY_SCAN_IO:
+ if (delay < 0)
+ t = (float)(9.926E-6);
+ else
+ t = (float)(4E-6) * (float)(delay) + (float)(1.3132E-5);
+ break;
+ default:
+ return ERROR_FAIL;
+ break;
+ }
+
+ f_float = 1.0 / t;
+ f_rounded = roundf(f_float);
+ *f = (long)f_rounded;
+
+ return ERROR_OK;
}
/******************* Interface between OpenULINK and OpenOCD ******************/
*/
static void ulink_set_end_state(tap_state_t endstate)
{
- if (tap_is_state_stable(endstate)) {
- tap_set_end_state(endstate);
- }
- else {
- LOG_ERROR("BUG: %s is not a valid end state", tap_state_name(endstate));
- exit( EXIT_FAILURE);
- }
+ if (tap_is_state_stable(endstate))
+ tap_set_end_state(endstate);
+ else {
+ LOG_ERROR("BUG: %s is not a valid end state", tap_state_name(endstate));
+ exit(EXIT_FAILURE);
+ }
}
/**
*/
int ulink_queue_statemove(struct ulink *device)
{
- uint8_t tms_sequence, tms_count;
- int ret;
+ uint8_t tms_sequence, tms_count;
+ int ret;
- if (tap_get_state() == tap_get_end_state()) {
- /* Do nothing if we are already there */
- return ERROR_OK;
- }
+ if (tap_get_state() == tap_get_end_state()) {
+ /* Do nothing if we are already there */
+ return ERROR_OK;
+ }
- tms_sequence = tap_get_tms_path(tap_get_state(), tap_get_end_state());
- tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
+ tms_sequence = tap_get_tms_path(tap_get_state(), tap_get_end_state());
+ tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
- ret = ulink_append_clock_tms_cmd(device, tms_count, tms_sequence);
+ ret = ulink_append_clock_tms_cmd(device, tms_count, tms_sequence);
- if (ret == ERROR_OK) {
- tap_set_state(tap_get_end_state());
- }
+ if (ret == ERROR_OK)
+ tap_set_state(tap_get_end_state());
- return ret;
+ return ret;
}
/**
*/
int ulink_queue_scan(struct ulink *device, struct jtag_command *cmd)
{
- uint32_t scan_size_bits, scan_size_bytes, bits_last_scan;
- uint32_t scans_max_payload, bytecount;
- uint8_t *tdi_buffer_start = NULL, *tdi_buffer = NULL;
- uint8_t *tdo_buffer_start = NULL, *tdo_buffer = NULL;
-
- uint8_t first_tms_count, first_tms_sequence;
- uint8_t last_tms_count, last_tms_sequence;
-
- uint8_t tms_count_pause, tms_sequence_pause;
- uint8_t tms_count_resume, tms_sequence_resume;
-
- uint8_t tms_count_start, tms_sequence_start;
- uint8_t tms_count_end, tms_sequence_end;
-
- enum scan_type type;
- int ret;
-
- /* Determine scan size */
- scan_size_bits = jtag_scan_size(cmd->cmd.scan);
- scan_size_bytes = DIV_ROUND_UP(scan_size_bits, 8);
-
- /* Determine scan type (IN/OUT/IO) */
- type = jtag_scan_type(cmd->cmd.scan);
-
- /* Determine number of scan commands with maximum payload */
- scans_max_payload = scan_size_bytes / 58;
-
- /* Determine size of last shift command */
- bits_last_scan = scan_size_bits - (scans_max_payload * 58 * 8);
-
- /* Allocate TDO buffer if required */
- if ((type == SCAN_IN) || (type == SCAN_IO)) {
- tdo_buffer_start = calloc(sizeof(uint8_t), scan_size_bytes);
-
- if (tdo_buffer_start == NULL) {
- return ERROR_FAIL;
- }
-
- tdo_buffer = tdo_buffer_start;
- }
-
- /* Fill TDI buffer if required */
- if ((type == SCAN_OUT) || (type == SCAN_IO)) {
- jtag_build_buffer(cmd->cmd.scan, &tdi_buffer_start);
- tdi_buffer = tdi_buffer_start;
- }
-
- /* Get TAP state transitions */
- if (cmd->cmd.scan->ir_scan) {
- ulink_set_end_state(TAP_IRSHIFT);
- first_tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
- first_tms_sequence = tap_get_tms_path(tap_get_state(), tap_get_end_state());
-
- tap_set_state(TAP_IRSHIFT);
- tap_set_end_state(cmd->cmd.scan->end_state);
- last_tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
- last_tms_sequence = tap_get_tms_path(tap_get_state(), tap_get_end_state());
-
- /* TAP state transitions for split scans */
- tms_count_pause = tap_get_tms_path_len(TAP_IRSHIFT, TAP_IRPAUSE);
- tms_sequence_pause = tap_get_tms_path(TAP_IRSHIFT, TAP_IRPAUSE);
- tms_count_resume = tap_get_tms_path_len(TAP_IRPAUSE, TAP_IRSHIFT);
- tms_sequence_resume = tap_get_tms_path(TAP_IRPAUSE, TAP_IRSHIFT);
- }
- else {
- ulink_set_end_state(TAP_DRSHIFT);
- first_tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
- first_tms_sequence = tap_get_tms_path(tap_get_state(), tap_get_end_state());
-
- tap_set_state(TAP_DRSHIFT);
- tap_set_end_state(cmd->cmd.scan->end_state);
- last_tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
- last_tms_sequence = tap_get_tms_path(tap_get_state(), tap_get_end_state());
-
- /* TAP state transitions for split scans */
- tms_count_pause = tap_get_tms_path_len(TAP_DRSHIFT, TAP_DRPAUSE);
- tms_sequence_pause = tap_get_tms_path(TAP_DRSHIFT, TAP_DRPAUSE);
- tms_count_resume = tap_get_tms_path_len(TAP_DRPAUSE, TAP_DRSHIFT);
- tms_sequence_resume = tap_get_tms_path(TAP_DRPAUSE, TAP_DRSHIFT);
- }
-
- /* Generate scan commands */
- bytecount = scan_size_bytes;
- while (bytecount > 0) {
- if (bytecount == scan_size_bytes) {
- /* This is the first scan */
- tms_count_start = first_tms_count;
- tms_sequence_start = first_tms_sequence;
- }
- else {
- /* Resume from previous scan */
- tms_count_start = tms_count_resume;
- tms_sequence_start = tms_sequence_resume;
- }
-
- if (bytecount > 58) { /* Full scan, at least one scan will follow */
- tms_count_end = tms_count_pause;
- tms_sequence_end = tms_sequence_pause;
-
- ret = ulink_append_scan_cmd(device, type, 58 * 8, tdi_buffer,
- tdo_buffer_start, tdo_buffer, tms_count_start, tms_sequence_start,
- tms_count_end, tms_sequence_end, cmd, false);
-
- bytecount -= 58;
-
- /* Update TDI and TDO buffer pointers */
- if (tdi_buffer_start != NULL) {
- tdi_buffer += 58;
- }
- if (tdo_buffer_start != NULL) {
- tdo_buffer += 58;
- }
- }
- else if (bytecount == 58) { /* Full scan, no further scans */
- tms_count_end = last_tms_count;
- tms_sequence_end = last_tms_sequence;
-
- ret = ulink_append_scan_cmd(device, type, 58 * 8, tdi_buffer,
- tdo_buffer_start, tdo_buffer, tms_count_start, tms_sequence_start,
- tms_count_end, tms_sequence_end, cmd, true);
-
- bytecount = 0;
- }
- else { /* Scan with less than maximum payload, no further scans */
- tms_count_end = last_tms_count;
- tms_sequence_end = last_tms_sequence;
-
- ret = ulink_append_scan_cmd(device, type, bits_last_scan, tdi_buffer,
- tdo_buffer_start, tdo_buffer, tms_count_start, tms_sequence_start,
- tms_count_end, tms_sequence_end, cmd, true);
-
- bytecount = 0;
- }
-
- if (ret != ERROR_OK) {
- free(tdi_buffer_start);
- return ret;
- }
- }
-
- free(tdi_buffer_start);
-
- /* Set current state to the end state requested by the command */
- tap_set_state(cmd->cmd.scan->end_state);
-
- return ERROR_OK;
+ uint32_t scan_size_bits, scan_size_bytes, bits_last_scan;
+ uint32_t scans_max_payload, bytecount;
+ uint8_t *tdi_buffer_start = NULL, *tdi_buffer = NULL;
+ uint8_t *tdo_buffer_start = NULL, *tdo_buffer = NULL;
+
+ uint8_t first_tms_count, first_tms_sequence;
+ uint8_t last_tms_count, last_tms_sequence;
+
+ uint8_t tms_count_pause, tms_sequence_pause;
+ uint8_t tms_count_resume, tms_sequence_resume;
+
+ uint8_t tms_count_start, tms_sequence_start;
+ uint8_t tms_count_end, tms_sequence_end;
+
+ enum scan_type type;
+ int ret;
+
+ /* Determine scan size */
+ scan_size_bits = jtag_scan_size(cmd->cmd.scan);
+ scan_size_bytes = DIV_ROUND_UP(scan_size_bits, 8);
+
+ /* Determine scan type (IN/OUT/IO) */
+ type = jtag_scan_type(cmd->cmd.scan);
+
+ /* Determine number of scan commands with maximum payload */
+ scans_max_payload = scan_size_bytes / 58;
+
+ /* Determine size of last shift command */
+ bits_last_scan = scan_size_bits - (scans_max_payload * 58 * 8);
+
+ /* Allocate TDO buffer if required */
+ if ((type == SCAN_IN) || (type == SCAN_IO)) {
+ tdo_buffer_start = calloc(sizeof(uint8_t), scan_size_bytes);
+
+ if (tdo_buffer_start == NULL)
+ return ERROR_FAIL;
+
+ tdo_buffer = tdo_buffer_start;
+ }
+
+ /* Fill TDI buffer if required */
+ if ((type == SCAN_OUT) || (type == SCAN_IO)) {
+ jtag_build_buffer(cmd->cmd.scan, &tdi_buffer_start);
+ tdi_buffer = tdi_buffer_start;
+ }
+
+ /* Get TAP state transitions */
+ if (cmd->cmd.scan->ir_scan) {
+ ulink_set_end_state(TAP_IRSHIFT);
+ first_tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
+ first_tms_sequence = tap_get_tms_path(tap_get_state(), tap_get_end_state());
+
+ tap_set_state(TAP_IRSHIFT);
+ tap_set_end_state(cmd->cmd.scan->end_state);
+ last_tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
+ last_tms_sequence = tap_get_tms_path(tap_get_state(), tap_get_end_state());
+
+ /* TAP state transitions for split scans */
+ tms_count_pause = tap_get_tms_path_len(TAP_IRSHIFT, TAP_IRPAUSE);
+ tms_sequence_pause = tap_get_tms_path(TAP_IRSHIFT, TAP_IRPAUSE);
+ tms_count_resume = tap_get_tms_path_len(TAP_IRPAUSE, TAP_IRSHIFT);
+ tms_sequence_resume = tap_get_tms_path(TAP_IRPAUSE, TAP_IRSHIFT);
+ } else {
+ ulink_set_end_state(TAP_DRSHIFT);
+ first_tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
+ first_tms_sequence = tap_get_tms_path(tap_get_state(), tap_get_end_state());
+
+ tap_set_state(TAP_DRSHIFT);
+ tap_set_end_state(cmd->cmd.scan->end_state);
+ last_tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
+ last_tms_sequence = tap_get_tms_path(tap_get_state(), tap_get_end_state());
+
+ /* TAP state transitions for split scans */
+ tms_count_pause = tap_get_tms_path_len(TAP_DRSHIFT, TAP_DRPAUSE);
+ tms_sequence_pause = tap_get_tms_path(TAP_DRSHIFT, TAP_DRPAUSE);
+ tms_count_resume = tap_get_tms_path_len(TAP_DRPAUSE, TAP_DRSHIFT);
+ tms_sequence_resume = tap_get_tms_path(TAP_DRPAUSE, TAP_DRSHIFT);
+ }
+
+ /* Generate scan commands */
+ bytecount = scan_size_bytes;
+ while (bytecount > 0) {
+ if (bytecount == scan_size_bytes) {
+ /* This is the first scan */
+ tms_count_start = first_tms_count;
+ tms_sequence_start = first_tms_sequence;
+ } else {
+ /* Resume from previous scan */
+ tms_count_start = tms_count_resume;
+ tms_sequence_start = tms_sequence_resume;
+ }
+
+ if (bytecount > 58) { /* Full scan, at least one scan will follow */
+ tms_count_end = tms_count_pause;
+ tms_sequence_end = tms_sequence_pause;
+
+ ret = ulink_append_scan_cmd(device,
+ type,
+ 58 * 8,
+ tdi_buffer,
+ tdo_buffer_start,
+ tdo_buffer,
+ tms_count_start,
+ tms_sequence_start,
+ tms_count_end,
+ tms_sequence_end,
+ cmd,
+ false);
+
+ bytecount -= 58;
+
+ /* Update TDI and TDO buffer pointers */
+ if (tdi_buffer_start != NULL)
+ tdi_buffer += 58;
+ if (tdo_buffer_start != NULL)
+ tdo_buffer += 58;
+ } else if (bytecount == 58) { /* Full scan, no further scans */
+ tms_count_end = last_tms_count;
+ tms_sequence_end = last_tms_sequence;
+
+ ret = ulink_append_scan_cmd(device,
+ type,
+ 58 * 8,
+ tdi_buffer,
+ tdo_buffer_start,
+ tdo_buffer,
+ tms_count_start,
+ tms_sequence_start,
+ tms_count_end,
+ tms_sequence_end,
+ cmd,
+ true);
+
+ bytecount = 0;
+ } else {/* Scan with less than maximum payload, no further scans */
+ tms_count_end = last_tms_count;
+ tms_sequence_end = last_tms_sequence;
+
+ ret = ulink_append_scan_cmd(device,
+ type,
+ bits_last_scan,
+ tdi_buffer,
+ tdo_buffer_start,
+ tdo_buffer,
+ tms_count_start,
+ tms_sequence_start,
+ tms_count_end,
+ tms_sequence_end,
+ cmd,
+ true);
+
+ bytecount = 0;
+ }
+
+ if (ret != ERROR_OK) {
+ free(tdi_buffer_start);
+ return ret;
+ }
+ }
+
+ free(tdi_buffer_start);
+
+ /* Set current state to the end state requested by the command */
+ tap_set_state(cmd->cmd.scan->end_state);
+
+ return ERROR_OK;
}
/**
*/
int ulink_queue_tlr_reset(struct ulink *device, struct jtag_command *cmd)
{
- int ret;
+ int ret;
- ret = ulink_append_clock_tms_cmd(device, 5, 0xff);
+ ret = ulink_append_clock_tms_cmd(device, 5, 0xff);
- if (ret == ERROR_OK) {
- tap_set_state(TAP_RESET);
- }
+ if (ret == ERROR_OK)
+ tap_set_state(TAP_RESET);
- return ret;
+ return ret;
}
/**
*/
int ulink_queue_runtest(struct ulink *device, struct jtag_command *cmd)
{
- int ret;
-
- /* Only perform statemove if the TAP currently isn't in the TAP_IDLE state */
- if (tap_get_state() != TAP_IDLE) {
- ulink_set_end_state(TAP_IDLE);
- ulink_queue_statemove(device);
- }
-
- /* Generate the clock cycles */
- ret = ulink_append_clock_tck_cmd(device, cmd->cmd.runtest->num_cycles);
- if (ret != ERROR_OK) {
- return ret;
- }
-
- /* Move to end state specified in command */
- if (cmd->cmd.runtest->end_state != tap_get_state()) {
- tap_set_end_state(cmd->cmd.runtest->end_state);
- ulink_queue_statemove(device);
- }
-
- return ERROR_OK;
+ int ret;
+
+ /* Only perform statemove if the TAP currently isn't in the TAP_IDLE state */
+ if (tap_get_state() != TAP_IDLE) {
+ ulink_set_end_state(TAP_IDLE);
+ ulink_queue_statemove(device);
+ }
+
+ /* Generate the clock cycles */
+ ret = ulink_append_clock_tck_cmd(device, cmd->cmd.runtest->num_cycles);
+ if (ret != ERROR_OK)
+ return ret;
+
+ /* Move to end state specified in command */
+ if (cmd->cmd.runtest->end_state != tap_get_state()) {
+ tap_set_end_state(cmd->cmd.runtest->end_state);
+ ulink_queue_statemove(device);
+ }
+
+ return ERROR_OK;
}
/**
*/
int ulink_queue_reset(struct ulink *device, struct jtag_command *cmd)
{
- uint8_t low = 0, high = 0;
-
- if (cmd->cmd.reset->trst) {
- tap_set_state(TAP_RESET);
- high |= SIGNAL_TRST;
- }
- else {
- low |= SIGNAL_TRST;
- }
-
- if (cmd->cmd.reset->srst) {
- high |= SIGNAL_RESET;
- }
- else {
- low |= SIGNAL_RESET;
- }
-
- return ulink_append_set_signals_cmd(device, low, high);
+ uint8_t low = 0, high = 0;
+
+ if (cmd->cmd.reset->trst) {
+ tap_set_state(TAP_RESET);
+ high |= SIGNAL_TRST;
+ } else
+ low |= SIGNAL_TRST;
+
+ if (cmd->cmd.reset->srst)
+ high |= SIGNAL_RESET;
+ else
+ low |= SIGNAL_RESET;
+
+ return ulink_append_set_signals_cmd(device, low, high);
}
/**
*/
int ulink_queue_pathmove(struct ulink *device, struct jtag_command *cmd)
{
- // TODO: Implement this!
- return ERROR_OK;
+ int ret, i, num_states, batch_size, state_count;
+ tap_state_t *path;
+ uint8_t tms_sequence;
+
+ num_states = cmd->cmd.pathmove->num_states;
+ path = cmd->cmd.pathmove->path;
+ state_count = 0;
+
+ while (num_states > 0) {
+ tms_sequence = 0;
+
+ /* Determine batch size */
+ if (num_states >= 8)
+ batch_size = 8;
+ else
+ batch_size = num_states;
+
+ for (i = 0; i < batch_size; i++) {
+ if (tap_state_transition(tap_get_state(), false) == path[state_count]) {
+ /* Append '0' transition: clear bit 'i' in tms_sequence */
+ buf_set_u32(&tms_sequence, i, 1, 0x0);
+ } else if (tap_state_transition(tap_get_state(), true)
+ == path[state_count]) {
+ /* Append '1' transition: set bit 'i' in tms_sequence */
+ buf_set_u32(&tms_sequence, i, 1, 0x1);
+ } else {
+ /* Invalid state transition */
+ LOG_ERROR("BUG: %s -> %s isn't a valid TAP state transition",
+ tap_state_name(tap_get_state()),
+ tap_state_name(path[state_count]));
+ return ERROR_FAIL;
+ }
+
+ tap_set_state(path[state_count]);
+ state_count++;
+ num_states--;
+ }
+
+ /* Append CLOCK_TMS command to OpenULINK command queue */
+ LOG_INFO(
+ "pathmove batch: count = %i, sequence = 0x%x", batch_size, tms_sequence);
+ ret = ulink_append_clock_tms_cmd(ulink_handle, batch_size, tms_sequence);
+ if (ret != ERROR_OK)
+ return ret;
+ }
+
+ return ERROR_OK;
}
/**
*/
int ulink_queue_sleep(struct ulink *device, struct jtag_command *cmd)
{
- /* IMPORTANT! Due to the time offset in command execution introduced by
- * command queueing, this needs to be implemented in the ULINK device */
- return ulink_append_sleep_cmd(device, cmd->cmd.sleep->us);
+ /* IMPORTANT! Due to the time offset in command execution introduced by
+ * command queueing, this needs to be implemented in the ULINK device */
+ return ulink_append_sleep_cmd(device, cmd->cmd.sleep->us);
+}
+
+/**
+ * Generate TCK cycles while remaining in a stable state.
+ *
+ * @param device pointer to struct ulink identifying ULINK driver instance.
+ * @param cmd pointer to the command that shall be executed.
+ */
+int ulink_queue_stableclocks(struct ulink *device, struct jtag_command *cmd)
+{
+ int ret;
+ unsigned num_cycles;
+
+ if (!tap_is_state_stable(tap_get_state())) {
+ LOG_ERROR("JTAG_STABLECLOCKS: state not stable");
+ return ERROR_FAIL;
+ }
+
+ num_cycles = cmd->cmd.stableclocks->num_cycles;
+
+ /* TMS stays either high (Test Logic Reset state) or low (all other states) */
+ if (tap_get_state() == TAP_RESET)
+ ret = ulink_append_set_signals_cmd(device, 0, SIGNAL_TMS);
+ else
+ ret = ulink_append_set_signals_cmd(device, SIGNAL_TMS, 0);
+
+ if (ret != ERROR_OK)
+ return ret;
+
+ while (num_cycles > 0) {
+ if (num_cycles > 0xFFFF) {
+ /* OpenULINK CMD_CLOCK_TCK can generate up to 0xFFFF (uint16_t) cycles */
+ ret = ulink_append_clock_tck_cmd(device, 0xFFFF);
+ num_cycles -= 0xFFFF;
+ } else {
+ ret = ulink_append_clock_tck_cmd(device, num_cycles);
+ num_cycles = 0;
+ }
+
+ if (ret != ERROR_OK)
+ return ret;
+ }
+
+ return ERROR_OK;
}
/**
* @return on success: ERROR_OK
* @return on failure: ERROR_FAIL
*/
-int ulink_post_process_scan(ulink_cmd_t *ulink_cmd)
+int ulink_post_process_scan(struct ulink_cmd *ulink_cmd)
{
- struct jtag_command *cmd = ulink_cmd->cmd_origin;
- int ret;
-
- switch (jtag_scan_type(cmd->cmd.scan)) {
- case SCAN_IN:
- case SCAN_IO:
- ret = jtag_read_buffer(ulink_cmd->payload_in_start, cmd->cmd.scan);
- break;
- case SCAN_OUT:
- /* Nothing to do for OUT scans */
- ret = ERROR_OK;
- break;
- default:
- LOG_ERROR("BUG: ulink_post_process_scan() encountered an unknown"
- " JTAG scan type");
- ret = ERROR_FAIL;
- break;
- }
-
- return ret;
+ struct jtag_command *cmd = ulink_cmd->cmd_origin;
+ int ret;
+
+ switch (jtag_scan_type(cmd->cmd.scan)) {
+ case SCAN_IN:
+ case SCAN_IO:
+ ret = jtag_read_buffer(ulink_cmd->payload_in_start, cmd->cmd.scan);
+ break;
+ case SCAN_OUT:
+ /* Nothing to do for OUT scans */
+ ret = ERROR_OK;
+ break;
+ default:
+ LOG_ERROR("BUG: ulink_post_process_scan() encountered an unknown"
+ " JTAG scan type");
+ ret = ERROR_FAIL;
+ break;
+ }
+
+ return ret;
}
/**
*/
int ulink_post_process_queue(struct ulink *device)
{
- ulink_cmd_t *current;
- struct jtag_command *openocd_cmd;
- int ret;
-
- current = device->queue_start;
-
- while (current != NULL) {
- openocd_cmd = current->cmd_origin;
-
- /* Check if a corresponding OpenOCD command is stored for this
- * OpenULINK command */
- if ((current->needs_postprocessing == true) && (openocd_cmd != NULL)) {
- switch (openocd_cmd->type) {
- case JTAG_SCAN:
- ret = ulink_post_process_scan(current);
- break;
- case JTAG_TLR_RESET:
- case JTAG_RUNTEST:
- case JTAG_RESET:
- case JTAG_PATHMOVE:
- case JTAG_SLEEP:
- /* Nothing to do for these commands */
- ret = ERROR_OK;
- break;
- default:
- ret = ERROR_FAIL;
- LOG_ERROR("BUG: ulink_post_process_queue() encountered unknown JTAG "
- "command type");
- break;
- }
-
- if (ret != ERROR_OK) {
- return ret;
- }
- }
-
- current = current->next;
- }
-
- return ERROR_OK;
+ struct ulink_cmd *current;
+ struct jtag_command *openocd_cmd;
+ int ret;
+
+ current = device->queue_start;
+
+ while (current != NULL) {
+ openocd_cmd = current->cmd_origin;
+
+ /* Check if a corresponding OpenOCD command is stored for this
+ * OpenULINK command */
+ if ((current->needs_postprocessing == true) && (openocd_cmd != NULL)) {
+ switch (openocd_cmd->type) {
+ case JTAG_SCAN:
+ ret = ulink_post_process_scan(current);
+ break;
+ case JTAG_TLR_RESET:
+ case JTAG_RUNTEST:
+ case JTAG_RESET:
+ case JTAG_PATHMOVE:
+ case JTAG_SLEEP:
+ case JTAG_STABLECLOCKS:
+ /* Nothing to do for these commands */
+ ret = ERROR_OK;
+ break;
+ default:
+ ret = ERROR_FAIL;
+ LOG_ERROR("BUG: ulink_post_process_queue() encountered unknown JTAG "
+ "command type");
+ break;
+ }
+
+ if (ret != ERROR_OK)
+ return ret;
+ }
+
+ current = current->next;
+ }
+
+ return ERROR_OK;
}
/**************************** JTAG driver functions ***************************/
*/
static int ulink_execute_queue(void)
{
- struct jtag_command *cmd = jtag_command_queue;
- int ret;
-
- while (cmd) {
- switch (cmd->type) {
- case JTAG_SCAN:
- ret = ulink_queue_scan(ulink_handle, cmd);
- break;
- case JTAG_TLR_RESET:
- ret = ulink_queue_tlr_reset(ulink_handle, cmd);
- break;
- case JTAG_RUNTEST:
- ret = ulink_queue_runtest(ulink_handle, cmd);
- break;
- case JTAG_RESET:
- ret = ulink_queue_reset(ulink_handle, cmd);
- break;
- case JTAG_PATHMOVE:
- ret = ulink_queue_pathmove(ulink_handle, cmd);
- break;
- case JTAG_SLEEP:
- ret = ulink_queue_sleep(ulink_handle, cmd);
- break;
- default:
- ret = ERROR_FAIL;
- LOG_ERROR("BUG: encountered unknown JTAG command type");
- break;
- }
-
- if (ret != ERROR_OK) {
- return ret;
- }
-
- cmd = cmd->next;
- }
-
- if (ulink_handle->commands_in_queue > 0) {
- ret = ulink_execute_queued_commands(ulink_handle, USB_TIMEOUT);
- if (ret != ERROR_OK) {
- return ret;
- }
-
- ret = ulink_post_process_queue(ulink_handle);
- if (ret != ERROR_OK) {
- return ret;
- }
-
- ulink_clear_queue(ulink_handle);
- }
-
- return ERROR_OK;
+ struct jtag_command *cmd = jtag_command_queue;
+ int ret;
+
+ while (cmd) {
+ switch (cmd->type) {
+ case JTAG_SCAN:
+ ret = ulink_queue_scan(ulink_handle, cmd);
+ break;
+ case JTAG_TLR_RESET:
+ ret = ulink_queue_tlr_reset(ulink_handle, cmd);
+ break;
+ case JTAG_RUNTEST:
+ ret = ulink_queue_runtest(ulink_handle, cmd);
+ break;
+ case JTAG_RESET:
+ ret = ulink_queue_reset(ulink_handle, cmd);
+ break;
+ case JTAG_PATHMOVE:
+ ret = ulink_queue_pathmove(ulink_handle, cmd);
+ break;
+ case JTAG_SLEEP:
+ ret = ulink_queue_sleep(ulink_handle, cmd);
+ break;
+ case JTAG_STABLECLOCKS:
+ ret = ulink_queue_stableclocks(ulink_handle, cmd);
+ break;
+ default:
+ ret = ERROR_FAIL;
+ LOG_ERROR("BUG: encountered unknown JTAG command type");
+ break;
+ }
+
+ if (ret != ERROR_OK)
+ return ret;
+
+ cmd = cmd->next;
+ }
+
+ if (ulink_handle->commands_in_queue > 0) {
+ ret = ulink_execute_queued_commands(ulink_handle, USB_TIMEOUT);
+ if (ret != ERROR_OK)
+ return ret;
+
+ ret = ulink_post_process_queue(ulink_handle);
+ if (ret != ERROR_OK)
+ return ret;
+
+ ulink_clear_queue(ulink_handle);
+ }
+
+ return ERROR_OK;
}
/**
* Set the TCK frequency of the ULINK adapter.
*
- * @param khz ???
- * @param jtag_speed ???
+ * @param khz desired JTAG TCK frequency.
+ * @param jtag_speed where to store corresponding adapter-specific speed value.
* @return on success: ERROR_OK
* @return on failure: ERROR_FAIL
*/
static int ulink_khz(int khz, int *jtag_speed)
{
- if (khz == 0) {
- LOG_ERROR("RCLK not supported");
- return ERROR_FAIL;
- }
+ int ret;
+
+ if (khz == 0) {
+ LOG_ERROR("RCLK not supported");
+ return ERROR_FAIL;
+ }
+
+ /* CLOCK_TCK commands are decoupled from others. Therefore, the frequency
+ * setting can be done independently from all other commands. */
+ if (khz >= 375)
+ ulink_handle->delay_clock_tck = -1;
+ else {
+ ret = ulink_calculate_delay(DELAY_CLOCK_TCK, khz * 1000,
+ &ulink_handle->delay_clock_tck);
+ if (ret != ERROR_OK)
+ return ret;
+ }
+
+ /* SCAN_{IN,OUT,IO} commands invoke CLOCK_TMS commands. Therefore, if the
+ * requested frequency goes below the maximum frequency for SLOW_CLOCK_TMS
+ * commands, all SCAN commands MUST also use the variable frequency
+ * implementation! */
+ if (khz >= 176) {
+ ulink_handle->delay_clock_tms = -1;
+ ulink_handle->delay_scan_in = -1;
+ ulink_handle->delay_scan_out = -1;
+ ulink_handle->delay_scan_io = -1;
+ } else {
+ ret = ulink_calculate_delay(DELAY_CLOCK_TMS, khz * 1000,
+ &ulink_handle->delay_clock_tms);
+ if (ret != ERROR_OK)
+ return ret;
+
+ ret = ulink_calculate_delay(DELAY_SCAN_IN, khz * 1000,
+ &ulink_handle->delay_scan_in);
+ if (ret != ERROR_OK)
+ return ret;
+
+ ret = ulink_calculate_delay(DELAY_SCAN_OUT, khz * 1000,
+ &ulink_handle->delay_scan_out);
+ if (ret != ERROR_OK)
+ return ret;
+
+ ret = ulink_calculate_delay(DELAY_SCAN_IO, khz * 1000,
+ &ulink_handle->delay_scan_io);
+ if (ret != ERROR_OK)
+ return ret;
+ }
+
+#ifdef _DEBUG_JTAG_IO_
+ long f_tck, f_tms, f_scan_in, f_scan_out, f_scan_io;
+
+ ulink_calculate_frequency(DELAY_CLOCK_TCK, ulink_handle->delay_clock_tck,
+ &f_tck);
+ ulink_calculate_frequency(DELAY_CLOCK_TMS, ulink_handle->delay_clock_tms,
+ &f_tms);
+ ulink_calculate_frequency(DELAY_SCAN_IN, ulink_handle->delay_scan_in,
+ &f_scan_in);
+ ulink_calculate_frequency(DELAY_SCAN_OUT, ulink_handle->delay_scan_out,
+ &f_scan_out);
+ ulink_calculate_frequency(DELAY_SCAN_IO, ulink_handle->delay_scan_io,
+ &f_scan_io);
+
+ DEBUG_JTAG_IO("ULINK TCK setup: delay_tck = %i (%li Hz),",
+ ulink_handle->delay_clock_tck, f_tck);
+ DEBUG_JTAG_IO(" delay_tms = %i (%li Hz),",
+ ulink_handle->delay_clock_tms, f_tms);
+ DEBUG_JTAG_IO(" delay_scan_in = %i (%li Hz),",
+ ulink_handle->delay_scan_in, f_scan_in);
+ DEBUG_JTAG_IO(" delay_scan_out = %i (%li Hz),",
+ ulink_handle->delay_scan_out, f_scan_out);
+ DEBUG_JTAG_IO(" delay_scan_io = %i (%li Hz),",
+ ulink_handle->delay_scan_io, f_scan_io);
+#endif
- LOG_INFO("ulink_khz: %i kHz", khz);
+ /* Configure the ULINK device with the new delay values */
+ ret = ulink_append_configure_tck_cmd(ulink_handle,
+ ulink_handle->delay_scan_in,
+ ulink_handle->delay_scan_out,
+ ulink_handle->delay_scan_io,
+ ulink_handle->delay_clock_tck,
+ ulink_handle->delay_clock_tms);
- /* ULINK maximum TCK frequency is ~ 150 kHz */
- if (khz > 150) {
- return ERROR_FAIL;
- }
+ if (ret != ERROR_OK)
+ return ret;
- *jtag_speed = 0;
+ *jtag_speed = khz;
- return ERROR_OK;
+ return ERROR_OK;
}
/**
* Set the TCK frequency of the ULINK adapter.
*
- * @param speed ???
+ * Because of the way the TCK frequency is set up in the OpenULINK firmware,
+ * there are five different speed settings. To simplify things, the
+ * adapter-specific speed setting value is identical to the TCK frequency in
+ * khz.
+ *
+ * @param speed desired adapter-specific speed value.
* @return on success: ERROR_OK
* @return on failure: ERROR_FAIL
*/
static int ulink_speed(int speed)
{
- return ERROR_OK;
+ int dummy;
+
+ return ulink_khz(speed, &dummy);
}
/**
+ * Convert adapter-specific speed value to corresponding TCK frequency in kHz.
+ *
+ * Because of the way the TCK frequency is set up in the OpenULINK firmware,
+ * there are five different speed settings. To simplify things, the
+ * adapter-specific speed setting value is identical to the TCK frequency in
+ * khz.
*
+ * @param speed adapter-specific speed value.
+ * @param khz where to store corresponding TCK frequency in kHz.
+ * @return on success: ERROR_OK
+ * @return on failure: ERROR_FAIL
*/
static int ulink_speed_div(int speed, int *khz)
{
- LOG_INFO("ulink_speed_div: %i", speed);
-
- switch (speed) {
- case 0:
- *khz = 150;
- break;
- case 1:
- *khz = 100;
- break;
- }
-
- return ERROR_OK;
+ *khz = speed;
+
+ return ERROR_OK;
}
/**
*/
static int ulink_init(void)
{
- int ret;
- char str_manufacturer[20];
- bool download_firmware = false;
- uint8_t *dummy;
- uint8_t input_signals, output_signals;
-
- ulink_handle = calloc(1, sizeof(struct ulink));
- if (ulink_handle == NULL) {
- return ERROR_FAIL;
- }
-
- usb_init();
-
- ret = ulink_usb_open(&ulink_handle);
- if (ret != ERROR_OK) {
- LOG_ERROR("Could not open ULINK device");
- return ret;
- }
-
- /* Get String Descriptor to determine if firmware needs to be loaded */
- ret = usb_get_string_simple(ulink_handle->usb_handle, 1, str_manufacturer, 20);
- if (ret < 0) {
- /* Could not get descriptor -> Unconfigured or original Keil firmware */
- download_firmware = true;
- }
- else {
- /* We got a String Descriptor, check if it is the correct one */
- if (strncmp(str_manufacturer, "OpenULINK", 9) != 0) {
- download_firmware = true;
- }
- }
-
- if (download_firmware == true) {
- LOG_INFO("Loading OpenULINK firmware. This is reversible by power-cycling"
- " ULINK device.");
- ret = ulink_load_firmware_and_renumerate(&ulink_handle,
- ULINK_FIRMWARE_FILE, ULINK_RENUMERATION_DELAY);
- if (ret != ERROR_OK) {
- LOG_ERROR("Could not download firmware and re-numerate ULINK");
- return ret;
- }
- }
- else {
- LOG_INFO("ULINK device is already running OpenULINK firmware");
- }
-
- /* Initialize OpenULINK command queue */
- ulink_clear_queue(ulink_handle);
-
- /* Issue one test command with short timeout */
- ret = ulink_append_test_cmd(ulink_handle);
- if (ret != ERROR_OK) {
- return ret;
- }
-
- ret = ulink_execute_queued_commands(ulink_handle, 200);
- if (ret != ERROR_OK) {
- /* Sending test command failed. The ULINK device may be forever waiting for
- * the host to fetch an USB Bulk IN packet (e. g. OpenOCD crashed or was
- * shut down by the user via Ctrl-C. Try to retrieve this Bulk IN packet. */
- dummy = calloc(64, sizeof(uint8_t));
-
- ret = usb_bulk_read(ulink_handle->usb_handle, (2 | USB_ENDPOINT_IN),
- (char *)dummy, 64, 200);
-
- free(dummy);
-
- if (ret < 0) {
- /* Bulk IN transfer failed -> unrecoverable error condition */
- LOG_ERROR("Cannot communicate with ULINK device. Disconnect ULINK from "
- "the USB port and re-connect, then re-run OpenOCD");
- return ERROR_FAIL;
- }
+ int ret, transferred;
+ char str_manufacturer[20];
+ bool download_firmware = false;
+ unsigned char *dummy;
+ uint8_t input_signals, output_signals;
+
+ ulink_handle = calloc(1, sizeof(struct ulink));
+ if (ulink_handle == NULL)
+ return ERROR_FAIL;
+
+ libusb_init(&ulink_handle->libusb_ctx);
+
+ ret = ulink_usb_open(&ulink_handle);
+ if (ret != ERROR_OK) {
+ LOG_ERROR("Could not open ULINK device");
+ free(ulink_handle);
+ ulink_handle = NULL;
+ return ret;
+ }
+
+ /* Get String Descriptor to determine if firmware needs to be loaded */
+ ret = libusb_get_string_descriptor_ascii(ulink_handle->usb_device_handle, 1, (unsigned char *)str_manufacturer, 20);
+ if (ret < 0) {
+ /* Could not get descriptor -> Unconfigured or original Keil firmware */
+ download_firmware = true;
+ } else {
+ /* We got a String Descriptor, check if it is the correct one */
+ if (strncmp(str_manufacturer, "OpenULINK", 9) != 0)
+ download_firmware = true;
+ }
+
+ if (download_firmware == true) {
+ LOG_INFO("Loading OpenULINK firmware. This is reversible by power-cycling"
+ " ULINK device.");
+ ret = ulink_load_firmware_and_renumerate(&ulink_handle,
+ ULINK_FIRMWARE_FILE, ULINK_RENUMERATION_DELAY);
+ if (ret != ERROR_OK) {
+ LOG_ERROR("Could not download firmware and re-numerate ULINK");
+ free(ulink_handle);
+ ulink_handle = NULL;
+ return ret;
+ }
+ } else
+ LOG_INFO("ULINK device is already running OpenULINK firmware");
+
+ /* Initialize OpenULINK command queue */
+ ulink_clear_queue(ulink_handle);
+
+ /* Issue one test command with short timeout */
+ ret = ulink_append_test_cmd(ulink_handle);
+ if (ret != ERROR_OK)
+ return ret;
+
+ ret = ulink_execute_queued_commands(ulink_handle, 200);
+ if (ret != ERROR_OK) {
+ /* Sending test command failed. The ULINK device may be forever waiting for
+ * the host to fetch an USB Bulk IN packet (e. g. OpenOCD crashed or was
+ * shut down by the user via Ctrl-C. Try to retrieve this Bulk IN packet. */
+ dummy = calloc(64, sizeof(uint8_t));
+
+ ret = libusb_bulk_transfer(ulink_handle->usb_device_handle, (2 | LIBUSB_ENDPOINT_IN),
+ dummy, 64, &transferred, 200);
+
+ free(dummy);
+
+ if (ret != 0 || transferred == 0) {
+ /* Bulk IN transfer failed -> unrecoverable error condition */
+ LOG_ERROR("Cannot communicate with ULINK device. Disconnect ULINK from "
+ "the USB port and re-connect, then re-run OpenOCD");
+ free(ulink_handle);
+ ulink_handle = NULL;
+ return ERROR_FAIL;
+ }
#ifdef _DEBUG_USB_COMMS_
- else {
- /* Successfully received Bulk IN packet -> continue */
- LOG_INFO("Recovered from lost Bulk IN packet");
- }
+ else {
+ /* Successfully received Bulk IN packet -> continue */
+ LOG_INFO("Recovered from lost Bulk IN packet");
+ }
#endif
- }
- ulink_clear_queue(ulink_handle);
+ }
+ ulink_clear_queue(ulink_handle);
- ulink_append_get_signals_cmd(ulink_handle);
- ulink_execute_queued_commands(ulink_handle, 200);
+ ulink_append_get_signals_cmd(ulink_handle);
+ ulink_execute_queued_commands(ulink_handle, 200);
- /* Post-process the single CMD_GET_SIGNALS command */
- input_signals = ulink_handle->queue_start->payload_in[0];
- output_signals = ulink_handle->queue_start->payload_in[1];
+ /* Post-process the single CMD_GET_SIGNALS command */
+ input_signals = ulink_handle->queue_start->payload_in[0];
+ output_signals = ulink_handle->queue_start->payload_in[1];
- ulink_print_signal_states(input_signals, output_signals);
+ ulink_print_signal_states(input_signals, output_signals);
- ulink_clear_queue(ulink_handle);
+ ulink_clear_queue(ulink_handle);
- return ERROR_OK;
+ return ERROR_OK;
}
/**
*/
static int ulink_quit(void)
{
- int ret;
+ int ret;
- ret = ulink_usb_close(&ulink_handle);
- free(ulink_handle);
+ ret = ulink_usb_close(&ulink_handle);
+ free(ulink_handle);
- return ret;
+ return ret;
}
/**
*/
COMMAND_HANDLER(ulink_download_firmware_handler)
{
- int ret;
+ int ret;
+
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
- if (CMD_ARGC != 1) {
- LOG_ERROR("Need exactly one argument to ulink_download_firmware");
- return ERROR_FAIL;
- }
- LOG_INFO("Downloading ULINK firmware image %s", CMD_ARGV[0]);
+ LOG_INFO("Downloading ULINK firmware image %s", CMD_ARGV[0]);
- /* Download firmware image in CMD_ARGV[0] */
- ret = ulink_load_firmware_and_renumerate(&ulink_handle, (char *)CMD_ARGV[0],
- ULINK_RENUMERATION_DELAY);
+ /* Download firmware image in CMD_ARGV[0] */
+ ret = ulink_load_firmware_and_renumerate(&ulink_handle, (char *)CMD_ARGV[0],
+ ULINK_RENUMERATION_DELAY);
- return ret;
+ return ret;
}
/*************************** Command Registration **************************/
static const struct command_registration ulink_command_handlers[] = {
- {
- .name = "ulink_download_firmware",
- .handler = &ulink_download_firmware_handler,
- .mode = COMMAND_EXEC,
- .help = "download firmware image to ULINK device",
- .usage = "path/to/ulink_firmware.hex",
- },
- COMMAND_REGISTRATION_DONE,
+ {
+ .name = "ulink_download_firmware",
+ .handler = &ulink_download_firmware_handler,
+ .mode = COMMAND_EXEC,
+ .help = "download firmware image to ULINK device",
+ .usage = "path/to/ulink_firmware.hex",
+ },
+ COMMAND_REGISTRATION_DONE,
};
struct jtag_interface ulink_interface = {
- .name = "ulink",
+ .name = "ulink",
- .commands = ulink_command_handlers,
- .transports = jtag_only,
+ .commands = ulink_command_handlers,
+ .transports = jtag_only,
- .execute_queue = ulink_execute_queue,
- .khz = ulink_khz,
- .speed = ulink_speed,
- .speed_div = ulink_speed_div,
+ .execute_queue = ulink_execute_queue,
+ .khz = ulink_khz,
+ .speed = ulink_speed,
+ .speed_div = ulink_speed_div,
- .init = ulink_init,
- .quit = ulink_quit
+ .init = ulink_init,
+ .quit = ulink_quit
};
projects / openocd / blobdiff