+++ /dev/null
-/***************************************************************************
- * Copyright (C) 2014 by Paul Fertser *
- * fercerpav@gmail.com *
- * *
- * Copyright (C) 2013 by mike brown *
- * mike@theshedworks.org.uk *
- * *
- * Copyright (C) 2013 by Spencer Oliver *
- * spen@spen-soft.co.uk *
- * *
- * 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 <transport/transport.h>
-#include <jtag/swd.h>
-#include <jtag/interface.h>
-#include <jtag/commands.h>
-#include <jtag/tcl.h>
-
-#include <hidapi.h>
-
-/*
- * See CMSIS-DAP documentation:
- * Version 0.01 - Beta.
- */
-
-/* USB Config */
-
-/* Known vid/pid pairs:
- * VID 0xc251: Keil Software
- * PID 0xf001: LPC-Link-II CMSIS_DAP
- * PID 0xf002: OPEN-SDA CMSIS_DAP (Freedom Board)
- * PID 0x2722: Keil ULINK2 CMSIS-DAP
- *
- * VID 0x0d28: mbed Software
- * PID 0x0204: MBED CMSIS-DAP
- */
-
-#define MAX_USB_IDS 8
-/* vid = pid = 0 marks the end of the list */
-static uint16_t cmsis_dap_vid[MAX_USB_IDS + 1] = { 0 };
-static uint16_t cmsis_dap_pid[MAX_USB_IDS + 1] = { 0 };
-static wchar_t *cmsis_dap_serial;
-static bool swd_mode;
-
-#define PACKET_SIZE (64 + 1) /* 64 bytes plus report id */
-#define USB_TIMEOUT 1000
-
-/* CMSIS-DAP General Commands */
-#define CMD_DAP_INFO 0x00
-#define CMD_DAP_LED 0x01
-#define CMD_DAP_CONNECT 0x02
-#define CMD_DAP_DISCONNECT 0x03
-#define CMD_DAP_WRITE_ABORT 0x08
-#define CMD_DAP_DELAY 0x09
-#define CMD_DAP_RESET_TARGET 0x0A
-
-/* CMD_INFO */
-#define INFO_ID_VID 0x00 /* string */
-#define INFO_ID_PID 0x02 /* string */
-#define INFO_ID_SERNUM 0x03 /* string */
-#define INFO_ID_FW_VER 0x04 /* string */
-#define INFO_ID_TD_VEND 0x05 /* string */
-#define INFO_ID_TD_NAME 0x06 /* string */
-#define INFO_ID_CAPS 0xf0 /* byte */
-#define INFO_ID_PKT_CNT 0xfe /* byte */
-#define INFO_ID_PKT_SZ 0xff /* short */
-
-#define INFO_CAPS_SWD 0x01
-#define INFO_CAPS_JTAG 0x02
-
-/* CMD_LED */
-#define LED_ID_CONNECT 0x00
-#define LED_ID_RUN 0x01
-
-#define LED_OFF 0x00
-#define LED_ON 0x01
-
-/* CMD_CONNECT */
-#define CONNECT_DEFAULT 0x00
-#define CONNECT_SWD 0x01
-#define CONNECT_JTAG 0x02
-
-/* CMSIS-DAP Common SWD/JTAG Commands */
-#define CMD_DAP_DELAY 0x09
-#define CMD_DAP_SWJ_PINS 0x10
-#define CMD_DAP_SWJ_CLOCK 0x11
-#define CMD_DAP_SWJ_SEQ 0x12
-
-/*
- * PINS
- * Bit 0: SWCLK/TCK
- * Bit 1: SWDIO/TMS
- * Bit 2: TDI
- * Bit 3: TDO
- * Bit 5: nTRST
- * Bit 7: nRESET
- */
-
-/* CMSIS-DAP SWD Commands */
-#define CMD_DAP_SWD_CONFIGURE 0x13
-
-/* CMSIS-DAP JTAG Commands */
-#define CMD_DAP_JTAG_SEQ 0x14
-#define CMD_DAP_JTAG_CONFIGURE 0x15
-#define CMD_DAP_JTAG_IDCODE 0x16
-
-/* CMSIS-DAP Transfer Commands */
-#define CMD_DAP_TFER_CONFIGURE 0x04
-#define CMD_DAP_TFER 0x05
-#define CMD_DAP_TFER_BLOCK 0x06
-#define CMD_DAP_TFER_ABORT 0x07
-
-/* DAP Status Code */
-#define DAP_OK 0
-#define DAP_ERROR 0xFF
-
-/* CMSIS-DAP Vendor Commands
- * None as yet... */
-
-static const char * const info_caps_str[] = {
- "SWD Supported",
- "JTAG Supported"
-};
-
-/* max clock speed (kHz) */
-#define DAP_MAX_CLOCK 5000
-
-struct cmsis_dap {
- hid_device *dev_handle;
- uint16_t packet_size;
- uint16_t packet_count;
- uint8_t *packet_buffer;
- uint8_t caps;
- uint8_t mode;
-};
-
-struct pending_transfer_result {
- uint8_t cmd;
- uint32_t data;
- void *buffer;
-};
-
-static int pending_transfer_count, pending_queue_len;
-static struct pending_transfer_result *pending_transfers;
-
-static int queued_retval;
-
-static struct cmsis_dap *cmsis_dap_handle;
-
-static int cmsis_dap_usb_open(void)
-{
- hid_device *dev = NULL;
- int i;
- struct hid_device_info *devs, *cur_dev;
- unsigned short target_vid, target_pid;
- wchar_t *target_serial = NULL;
-
- bool found = false;
- bool serial_found = false;
-
- target_vid = 0;
- target_pid = 0;
-
- /*
- * The CMSIS-DAP specification stipulates:
- * "The Product String must contain "CMSIS-DAP" somewhere in the string. This is used by the
- * debuggers to identify a CMSIS-DAP compliant Debug Unit that is connected to a host computer."
- */
- devs = hid_enumerate(0x0, 0x0);
- cur_dev = devs;
- while (NULL != cur_dev) {
- if (0 == cmsis_dap_vid[0]) {
- if (NULL == cur_dev->product_string) {
- LOG_DEBUG("Cannot read product string of device 0x%x:0x%x",
- cur_dev->vendor_id, cur_dev->product_id);
- } else {
- if (wcsstr(cur_dev->product_string, L"CMSIS-DAP")) {
- /* if the user hasn't specified VID:PID *and*
- * product string contains "CMSIS-DAP", pick it
- */
- found = true;
- }
- }
- } else {
- /* otherwise, exhaustively compare against all VID:PID in list */
- for (i = 0; cmsis_dap_vid[i] || cmsis_dap_pid[i]; i++) {
- if ((cmsis_dap_vid[i] == cur_dev->vendor_id) && (cmsis_dap_pid[i] == cur_dev->product_id))
- found = true;
- }
-
- if (cmsis_dap_vid[i] || cmsis_dap_pid[i])
- found = true;
- }
-
- if (found) {
- /* we have found an adapter, so exit further checks */
- /* check serial number matches if given */
- if (cmsis_dap_serial != NULL) {
- if ((cur_dev->serial_number != NULL) && wcscmp(cmsis_dap_serial, cur_dev->serial_number) == 0) {
- serial_found = true;
- break;
- }
- } else
- break;
-
- found = false;
- }
-
- cur_dev = cur_dev->next;
- }
-
- if (NULL != cur_dev) {
- target_vid = cur_dev->vendor_id;
- target_pid = cur_dev->product_id;
- if (serial_found)
- target_serial = cmsis_dap_serial;
- }
-
- hid_free_enumeration(devs);
-
- if (target_vid == 0 && target_pid == 0) {
- LOG_ERROR("unable to find CMSIS-DAP device");
- return ERROR_FAIL;
- }
-
- if (hid_init() != 0) {
- LOG_ERROR("unable to open HIDAPI");
- return ERROR_FAIL;
- }
-
- dev = hid_open(target_vid, target_pid, target_serial);
-
- if (dev == NULL) {
- LOG_ERROR("unable to open CMSIS-DAP device 0x%x:0x%x", target_vid, target_pid);
- return ERROR_FAIL;
- }
-
- struct cmsis_dap *dap = malloc(sizeof(struct cmsis_dap));
- if (dap == NULL) {
- LOG_ERROR("unable to allocate memory");
- return ERROR_FAIL;
- }
-
- dap->dev_handle = dev;
- dap->caps = 0;
- dap->mode = 0;
-
- cmsis_dap_handle = dap;
-
- /* allocate default packet buffer, may be changed later.
- * currently with HIDAPI we have no way of getting the output report length
- * without this info we cannot communicate with the adapter.
- * For the moment we ahve to hard code the packet size */
-
- int packet_size = PACKET_SIZE;
-
- /* atmel cmsis-dap uses 512 byte reports */
- /* TODO: HID report descriptor should be parsed instead of
- * hardcoding a match by VID */
- if (target_vid == 0x03eb)
- packet_size = 512 + 1;
-
- cmsis_dap_handle->packet_buffer = malloc(packet_size);
- cmsis_dap_handle->packet_size = packet_size;
-
- if (cmsis_dap_handle->packet_buffer == NULL) {
- LOG_ERROR("unable to allocate memory");
- return ERROR_FAIL;
- }
-
- return ERROR_OK;
-}
-
-static void cmsis_dap_usb_close(struct cmsis_dap *dap)
-{
- hid_close(dap->dev_handle);
- hid_exit();
-
- free(cmsis_dap_handle->packet_buffer);
- free(cmsis_dap_handle);
- cmsis_dap_handle = NULL;
- free(cmsis_dap_serial);
- cmsis_dap_serial = NULL;
- free(pending_transfers);
- pending_transfers = NULL;
-
- return;
-}
-
-/* Send a message and receive the reply */
-static int cmsis_dap_usb_xfer(struct cmsis_dap *dap, int txlen)
-{
- /* Pad the rest of the TX buffer with 0's */
- memset(dap->packet_buffer + txlen, 0, dap->packet_size - txlen);
-
- /* write data to device */
- int retval = hid_write(dap->dev_handle, dap->packet_buffer, dap->packet_size);
- if (retval == -1) {
- LOG_ERROR("error writing data: %ls", hid_error(dap->dev_handle));
- return ERROR_FAIL;
- }
-
- /* get reply */
- retval = hid_read_timeout(dap->dev_handle, dap->packet_buffer, dap->packet_size, USB_TIMEOUT);
- if (retval == -1 || retval == 0) {
- LOG_DEBUG("error reading data: %ls", hid_error(dap->dev_handle));
- return ERROR_FAIL;
- }
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_cmd_DAP_SWJ_Pins(uint8_t pins, uint8_t mask, uint32_t delay, uint8_t *input)
-{
- int retval;
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_SWJ_PINS;
- buffer[2] = pins;
- buffer[3] = mask;
- buffer[4] = delay & 0xff;
- buffer[5] = (delay >> 8) & 0xff;
- buffer[6] = (delay >> 16) & 0xff;
- buffer[7] = (delay >> 24) & 0xff;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 8);
-
- if (retval != ERROR_OK) {
- LOG_ERROR("CMSIS-DAP command CMD_DAP_SWJ_PINS failed.");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- if (input)
- *input = buffer[1];
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_cmd_DAP_SWJ_Clock(uint32_t swj_clock)
-{
- int retval;
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- /* set clock in Hz */
- swj_clock *= 1000;
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_SWJ_CLOCK;
- buffer[2] = swj_clock & 0xff;
- buffer[3] = (swj_clock >> 8) & 0xff;
- buffer[4] = (swj_clock >> 16) & 0xff;
- buffer[5] = (swj_clock >> 24) & 0xff;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 6);
-
- if (retval != ERROR_OK || buffer[1] != DAP_OK) {
- LOG_ERROR("CMSIS-DAP command CMD_DAP_SWJ_CLOCK failed.");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_cmd_DAP_Info(uint8_t info, uint8_t **data)
-{
- int retval;
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_INFO;
- buffer[2] = info;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 3);
-
- if (retval != ERROR_OK) {
- LOG_ERROR("CMSIS-DAP command CMD_INFO failed.");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- *data = &(buffer[1]);
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_cmd_DAP_LED(uint8_t leds)
-{
- int retval;
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_LED;
- buffer[2] = 0x00;
- buffer[3] = leds;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 4);
-
- if (retval != ERROR_OK || buffer[1] != 0x00) {
- LOG_ERROR("CMSIS-DAP command CMD_LED failed.");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_cmd_DAP_Connect(uint8_t mode)
-{
- int retval;
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_CONNECT;
- buffer[2] = mode;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 3);
-
- if (retval != ERROR_OK) {
- LOG_ERROR("CMSIS-DAP command CMD_CONNECT failed.");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- if (buffer[1] != mode) {
- LOG_ERROR("CMSIS-DAP failed to connect in mode (%d)", mode);
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_cmd_DAP_Disconnect(void)
-{
- int retval;
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_DISCONNECT;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 2);
-
- if (retval != ERROR_OK || buffer[1] != DAP_OK) {
- LOG_ERROR("CMSIS-DAP command CMD_DISCONNECT failed.");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_cmd_DAP_TFER_Configure(uint8_t idle, uint16_t retry_count, uint16_t match_retry)
-{
- int retval;
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_TFER_CONFIGURE;
- buffer[2] = idle;
- buffer[3] = retry_count & 0xff;
- buffer[4] = (retry_count >> 8) & 0xff;
- buffer[5] = match_retry & 0xff;
- buffer[6] = (match_retry >> 8) & 0xff;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 7);
-
- if (retval != ERROR_OK || buffer[1] != DAP_OK) {
- LOG_ERROR("CMSIS-DAP command CMD_TFER_Configure failed.");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_cmd_DAP_SWD_Configure(uint8_t cfg)
-{
- int retval;
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_SWD_CONFIGURE;
- buffer[2] = cfg;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 3);
-
- if (retval != ERROR_OK || buffer[1] != DAP_OK) {
- LOG_ERROR("CMSIS-DAP command CMD_SWD_Configure failed.");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- return ERROR_OK;
-}
-
-#if 0
-static int cmsis_dap_cmd_DAP_Delay(uint16_t delay_us)
-{
- int retval;
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_DELAY;
- buffer[2] = delay_us & 0xff;
- buffer[3] = (delay_us >> 8) & 0xff;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 4);
-
- if (retval != ERROR_OK || buffer[1] != DAP_OK) {
- LOG_ERROR("CMSIS-DAP command CMD_Delay failed.");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- return ERROR_OK;
-}
-#endif
-
-static int cmsis_dap_swd_run_queue(void)
-{
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- LOG_DEBUG("Executing %d queued transactions", pending_transfer_count);
-
- if (queued_retval != ERROR_OK) {
- LOG_DEBUG("Skipping due to previous errors: %d", queued_retval);
- goto skip;
- }
-
- if (!pending_transfer_count)
- goto skip;
-
- size_t idx = 0;
- buffer[idx++] = 0; /* report number */
- buffer[idx++] = CMD_DAP_TFER;
- buffer[idx++] = 0x00; /* DAP Index */
- buffer[idx++] = pending_transfer_count;
-
- for (int i = 0; i < pending_transfer_count; i++) {
- uint8_t cmd = pending_transfers[i].cmd;
- uint32_t data = pending_transfers[i].data;
-
- LOG_DEBUG("%s %s reg %x %"PRIx32,
- cmd & SWD_CMD_APnDP ? "AP" : "DP",
- cmd & SWD_CMD_RnW ? "read" : "write",
- (cmd & SWD_CMD_A32) >> 1, data);
-
- /* When proper WAIT handling is implemented in the
- * common SWD framework, this kludge can be
- * removed. However, this might lead to minor
- * performance degradation as the adapter wouldn't be
- * able to automatically retry anything (because ARM
- * has forgotten to implement sticky error flags
- * clearing). See also comments regarding
- * cmsis_dap_cmd_DAP_TFER_Configure() and
- * cmsis_dap_cmd_DAP_SWD_Configure() in
- * cmsis_dap_init().
- */
- if (!(cmd & SWD_CMD_RnW) &&
- !(cmd & SWD_CMD_APnDP) &&
- (cmd & SWD_CMD_A32) >> 1 == DP_CTRL_STAT &&
- (data & CORUNDETECT)) {
- LOG_DEBUG("refusing to enable sticky overrun detection");
- data &= ~CORUNDETECT;
- }
-
- buffer[idx++] = (cmd >> 1) & 0x0f;
- if (!(cmd & SWD_CMD_RnW)) {
- buffer[idx++] = (data) & 0xff;
- buffer[idx++] = (data >> 8) & 0xff;
- buffer[idx++] = (data >> 16) & 0xff;
- buffer[idx++] = (data >> 24) & 0xff;
- }
- }
-
- queued_retval = cmsis_dap_usb_xfer(cmsis_dap_handle, idx);
- if (queued_retval != ERROR_OK)
- goto skip;
-
- idx = 2;
- uint8_t ack = buffer[idx] & 0x07;
- if (ack != SWD_ACK_OK || (buffer[idx] & 0x08)) {
- LOG_DEBUG("SWD ack not OK: %d %s", buffer[idx-1],
- ack == SWD_ACK_WAIT ? "WAIT" : ack == SWD_ACK_FAULT ? "FAULT" : "JUNK");
- queued_retval = ack == SWD_ACK_WAIT ? ERROR_WAIT : ERROR_FAIL;
- goto skip;
- }
- idx++;
-
- if (pending_transfer_count != buffer[1])
- LOG_ERROR("CMSIS-DAP transfer count mismatch: expected %d, got %d",
- pending_transfer_count, buffer[1]);
-
- for (int i = 0; i < buffer[1]; i++) {
- if (pending_transfers[i].cmd & SWD_CMD_RnW) {
- static uint32_t last_read;
- uint32_t data = le_to_h_u32(&buffer[idx]);
- uint32_t tmp = data;
- idx += 4;
-
- LOG_DEBUG("Read result: %"PRIx32, data);
-
- /* Imitate posted AP reads */
- if ((pending_transfers[i].cmd & SWD_CMD_APnDP) ||
- ((pending_transfers[i].cmd & SWD_CMD_A32) >> 1 == DP_RDBUFF)) {
- tmp = last_read;
- last_read = data;
- }
-
- if (pending_transfers[i].buffer)
- *(uint32_t *)pending_transfers[i].buffer = tmp;
- }
- }
-
-skip:
- pending_transfer_count = 0;
- int retval = queued_retval;
- queued_retval = ERROR_OK;
-
- return retval;
-}
-
-static void cmsis_dap_swd_queue_cmd(uint8_t cmd, uint32_t *dst, uint32_t data)
-{
- if (pending_transfer_count == pending_queue_len) {
- /* Not enough room in the queue. Run the queue. */
- queued_retval = cmsis_dap_swd_run_queue();
- }
-
- if (queued_retval != ERROR_OK)
- return;
-
- pending_transfers[pending_transfer_count].data = data;
- pending_transfers[pending_transfer_count].cmd = cmd;
- if (cmd & SWD_CMD_RnW) {
- /* Queue a read transaction */
- pending_transfers[pending_transfer_count].buffer = dst;
- }
- pending_transfer_count++;
-}
-
-static void cmsis_dap_swd_write_reg(uint8_t cmd, uint32_t value, uint32_t ap_delay_clk)
-{
- assert(!(cmd & SWD_CMD_RnW));
- cmsis_dap_swd_queue_cmd(cmd, NULL, value);
-}
-
-static void cmsis_dap_swd_read_reg(uint8_t cmd, uint32_t *value, uint32_t ap_delay_clk)
-{
- assert(cmd & SWD_CMD_RnW);
- cmsis_dap_swd_queue_cmd(cmd, value, 0);
-}
-
-static int cmsis_dap_get_version_info(void)
-{
- uint8_t *data;
-
- /* INFO_ID_FW_VER - string */
- int retval = cmsis_dap_cmd_DAP_Info(INFO_ID_FW_VER, &data);
- if (retval != ERROR_OK)
- return retval;
-
- if (data[0]) /* strlen */
- LOG_INFO("CMSIS-DAP: FW Version = %s", &data[1]);
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_get_caps_info(void)
-{
- uint8_t *data;
-
- /* INFO_ID_CAPS - byte */
- int retval = cmsis_dap_cmd_DAP_Info(INFO_ID_CAPS, &data);
- if (retval != ERROR_OK)
- return retval;
-
- if (data[0] == 1) {
- uint8_t caps = data[1];
-
- cmsis_dap_handle->caps = caps;
-
- if (caps & INFO_CAPS_SWD)
- LOG_INFO("CMSIS-DAP: %s", info_caps_str[0]);
- if (caps & INFO_CAPS_JTAG)
- LOG_INFO("CMSIS-DAP: %s", info_caps_str[1]);
- }
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_get_status(void)
-{
- uint8_t d;
-
- int retval = cmsis_dap_cmd_DAP_SWJ_Pins(0, 0, 0, &d);
-
- if (retval == ERROR_OK) {
- LOG_INFO("SWCLK/TCK = %d SWDIO/TMS = %d TDI = %d TDO = %d nTRST = %d nRESET = %d",
- (d & (0x01 << 0)) ? 1 : 0, /* Bit 0: SWCLK/TCK */
- (d & (0x01 << 1)) ? 1 : 0, /* Bit 1: SWDIO/TMS */
- (d & (0x01 << 2)) ? 1 : 0, /* Bit 2: TDI */
- (d & (0x01 << 3)) ? 1 : 0, /* Bit 3: TDO */
- (d & (0x01 << 5)) ? 1 : 0, /* Bit 5: nTRST */
- (d & (0x01 << 7)) ? 1 : 0); /* Bit 7: nRESET */
- }
-
- return retval;
-}
-
-static int cmsis_dap_swd_switch_seq(enum swd_special_seq seq)
-{
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
- const uint8_t *s;
- unsigned int s_len;
- int retval;
-
- /* First disconnect before connecting, Atmel EDBG needs it for SAMD/R/L/C */
- cmsis_dap_cmd_DAP_Disconnect();
-
- /* When we are reconnecting, DAP_Connect needs to be rerun, at
- * least on Keil ULINK-ME */
- retval = cmsis_dap_cmd_DAP_Connect(seq == LINE_RESET || seq == JTAG_TO_SWD ?
- CONNECT_SWD : CONNECT_JTAG);
- if (retval != ERROR_OK)
- return retval;
-
- 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;
- }
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_SWJ_SEQ;
- buffer[2] = s_len;
- bit_copy(&buffer[3], 0, s, 0, s_len);
-
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, DIV_ROUND_UP(s_len, 8) + 3);
-
- if (retval != ERROR_OK || buffer[1] != DAP_OK)
- return ERROR_FAIL;
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_swd_open(void)
-{
- int retval;
-
- if (cmsis_dap_handle == NULL) {
- /* SWD init */
- retval = cmsis_dap_usb_open();
- if (retval != ERROR_OK)
- return retval;
-
- retval = cmsis_dap_get_caps_info();
- if (retval != ERROR_OK)
- return retval;
- }
-
- if (!(cmsis_dap_handle->caps & INFO_CAPS_SWD)) {
- LOG_ERROR("CMSIS-DAP: SWD not supported");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- retval = cmsis_dap_cmd_DAP_Connect(CONNECT_SWD);
- if (retval != ERROR_OK)
- return retval;
-
- /* Add more setup here.??... */
-
- LOG_INFO("CMSIS-DAP: Interface Initialised (SWD)");
- return ERROR_OK;
-}
-
-static int cmsis_dap_init(void)
-{
- int retval;
- uint8_t *data;
-
- if (swd_mode) {
- retval = cmsis_dap_swd_open();
- if (retval != ERROR_OK)
- return retval;
- }
-
- if (cmsis_dap_handle == NULL) {
-
- /* JTAG init */
- retval = cmsis_dap_usb_open();
- if (retval != ERROR_OK)
- return retval;
-
- retval = cmsis_dap_get_caps_info();
- if (retval != ERROR_OK)
- return retval;
-
- /* Connect in JTAG mode */
- if (!(cmsis_dap_handle->caps & INFO_CAPS_JTAG)) {
- LOG_ERROR("CMSIS-DAP: JTAG not supported");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- retval = cmsis_dap_cmd_DAP_Connect(CONNECT_JTAG);
- if (retval != ERROR_OK)
- return retval;
-
- LOG_INFO("CMSIS-DAP: Interface Initialised (JTAG)");
- }
-
- retval = cmsis_dap_get_version_info();
- if (retval != ERROR_OK)
- return retval;
-
- /* INFO_ID_PKT_SZ - short */
- retval = cmsis_dap_cmd_DAP_Info(INFO_ID_PKT_SZ, &data);
- if (retval != ERROR_OK)
- return retval;
-
- if (data[0] == 2) { /* short */
- uint16_t pkt_sz = data[1] + (data[2] << 8);
-
- /* 4 bytes of command header + 5 bytes per register
- * write. For bulk read sequences just 4 bytes are
- * needed per transfer, so this is suboptimal. */
- pending_queue_len = (pkt_sz - 4) / 5;
- pending_transfers = malloc(pending_queue_len * sizeof(*pending_transfers));
- if (!pending_transfers) {
- LOG_ERROR("Unable to allocate memory for CMSIS-DAP queue");
- return ERROR_FAIL;
- }
-
- if (cmsis_dap_handle->packet_size != pkt_sz + 1) {
- /* reallocate buffer */
- cmsis_dap_handle->packet_size = pkt_sz + 1;
- cmsis_dap_handle->packet_buffer = realloc(cmsis_dap_handle->packet_buffer,
- cmsis_dap_handle->packet_size);
- if (cmsis_dap_handle->packet_buffer == NULL) {
- LOG_ERROR("unable to reallocate memory");
- return ERROR_FAIL;
- }
- }
-
- LOG_DEBUG("CMSIS-DAP: Packet Size = %" PRId16, pkt_sz);
- }
-
- /* INFO_ID_PKT_CNT - byte */
- retval = cmsis_dap_cmd_DAP_Info(INFO_ID_PKT_CNT, &data);
- if (retval != ERROR_OK)
- return retval;
-
- if (data[0] == 1) { /* byte */
- uint16_t pkt_cnt = data[1];
- cmsis_dap_handle->packet_count = pkt_cnt;
- LOG_DEBUG("CMSIS-DAP: Packet Count = %" PRId16, pkt_cnt);
- }
-
- retval = cmsis_dap_get_status();
- if (retval != ERROR_OK)
- return ERROR_FAIL;
-
- /* Now try to connect to the target
- * TODO: This is all SWD only @ present */
- retval = cmsis_dap_cmd_DAP_SWJ_Clock(jtag_get_speed_khz());
- if (retval != ERROR_OK)
- return ERROR_FAIL;
-
- /* Ask CMSIS-DAP to automatically retry on receiving WAIT for
- * up to 64 times. This must be changed to 0 if sticky
- * overrun detection is enabled. */
- retval = cmsis_dap_cmd_DAP_TFER_Configure(0, 64, 0);
- if (retval != ERROR_OK)
- return ERROR_FAIL;
- /* Data Phase (bit 2) must be set to 1 if sticky overrun
- * detection is enabled */
- retval = cmsis_dap_cmd_DAP_SWD_Configure(0); /* 1 TRN, no Data Phase */
- if (retval != ERROR_OK)
- return ERROR_FAIL;
-
- retval = cmsis_dap_cmd_DAP_LED(0x03); /* Both LEDs on */
- if (retval != ERROR_OK)
- return ERROR_FAIL;
-
- /* support connecting with srst asserted */
- enum reset_types jtag_reset_config = jtag_get_reset_config();
-
- if (jtag_reset_config & RESET_CNCT_UNDER_SRST) {
- if (jtag_reset_config & RESET_SRST_NO_GATING) {
- retval = cmsis_dap_cmd_DAP_SWJ_Pins(0, (1 << 7), 0, NULL);
- if (retval != ERROR_OK)
- return ERROR_FAIL;
- LOG_INFO("Connecting under reset");
- }
- }
-
- cmsis_dap_cmd_DAP_LED(0x00); /* Both LEDs off */
-
- LOG_INFO("CMSIS-DAP: Interface ready");
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_swd_init(void)
-{
- swd_mode = true;
- return ERROR_OK;
-}
-
-static int cmsis_dap_quit(void)
-{
- cmsis_dap_cmd_DAP_Disconnect();
- cmsis_dap_cmd_DAP_LED(0x00); /* Both LEDs off */
-
- cmsis_dap_usb_close(cmsis_dap_handle);
-
- return ERROR_OK;
-}
-
-static void cmsis_dap_execute_reset(struct jtag_command *cmd)
-{
- int retval = cmsis_dap_cmd_DAP_SWJ_Pins(cmd->cmd.reset->srst ? 0 : (1 << 7), \
- (1 << 7), 0, NULL);
- if (retval != ERROR_OK)
- LOG_ERROR("CMSIS-DAP: Interface reset failed");
-}
-
-static void cmsis_dap_execute_sleep(struct jtag_command *cmd)
-{
-#if 0
- int retval = cmsis_dap_cmd_DAP_Delay(cmd->cmd.sleep->us);
- if (retval != ERROR_OK)
-#endif
- jtag_sleep(cmd->cmd.sleep->us);
-}
-
-static void cmsis_dap_execute_command(struct jtag_command *cmd)
-{
- switch (cmd->type) {
- case JTAG_RESET:
- cmsis_dap_execute_reset(cmd);
- break;
- case JTAG_SLEEP:
- cmsis_dap_execute_sleep(cmd);
- break;
- default:
- LOG_ERROR("BUG: unknown JTAG command type encountered");
- exit(-1);
- }
-}
-
-static int cmsis_dap_execute_queue(void)
-{
- struct jtag_command *cmd = jtag_command_queue;
-
- while (cmd != NULL) {
- cmsis_dap_execute_command(cmd);
- cmd = cmd->next;
- }
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_speed(int speed)
-{
- if (speed > DAP_MAX_CLOCK) {
- LOG_INFO("reduce speed request: %dkHz to %dkHz maximum", speed, DAP_MAX_CLOCK);
- speed = DAP_MAX_CLOCK;
- }
-
- if (speed == 0) {
- LOG_INFO("RTCK not supported");
- return ERROR_JTAG_NOT_IMPLEMENTED;
- }
-
- return cmsis_dap_cmd_DAP_SWJ_Clock(speed);
-}
-
-static int cmsis_dap_speed_div(int speed, int *khz)
-{
- *khz = speed;
- return ERROR_OK;
-}
-
-static int cmsis_dap_khz(int khz, int *jtag_speed)
-{
- *jtag_speed = khz;
- return ERROR_OK;
-}
-
-static int_least32_t cmsis_dap_swd_frequency(int_least32_t hz)
-{
- if (hz > 0)
- cmsis_dap_speed(hz / 1000);
-
- return hz;
-}
-
-COMMAND_HANDLER(cmsis_dap_handle_info_command)
-{
- if (cmsis_dap_get_version_info() == ERROR_OK)
- cmsis_dap_get_status();
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(cmsis_dap_handle_vid_pid_command)
-{
- if (CMD_ARGC > MAX_USB_IDS * 2) {
- LOG_WARNING("ignoring extra IDs in cmsis_dap_vid_pid "
- "(maximum is %d pairs)", MAX_USB_IDS);
- CMD_ARGC = MAX_USB_IDS * 2;
- }
- if (CMD_ARGC < 2 || (CMD_ARGC & 1)) {
- LOG_WARNING("incomplete cmsis_dap_vid_pid configuration directive");
- if (CMD_ARGC < 2)
- return ERROR_COMMAND_SYNTAX_ERROR;
- /* remove the incomplete trailing id */
- CMD_ARGC -= 1;
- }
-
- unsigned i;
- for (i = 0; i < CMD_ARGC; i += 2) {
- COMMAND_PARSE_NUMBER(u16, CMD_ARGV[i], cmsis_dap_vid[i >> 1]);
- COMMAND_PARSE_NUMBER(u16, CMD_ARGV[i + 1], cmsis_dap_pid[i >> 1]);
- }
-
- /*
- * Explicitly terminate, in case there are multiples instances of
- * cmsis_dap_vid_pid.
- */
- cmsis_dap_vid[i >> 1] = cmsis_dap_pid[i >> 1] = 0;
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(cmsis_dap_handle_serial_command)
-{
- if (CMD_ARGC == 1) {
- size_t len = mbstowcs(NULL, CMD_ARGV[0], 0);
- cmsis_dap_serial = calloc(len + 1, sizeof(wchar_t));
- if (cmsis_dap_serial == NULL) {
- LOG_ERROR("unable to allocate memory");
- return ERROR_OK;
- }
- if (mbstowcs(cmsis_dap_serial, CMD_ARGV[0], len + 1) == (size_t)-1) {
- free(cmsis_dap_serial);
- cmsis_dap_serial = NULL;
- LOG_ERROR("unable to convert serial");
- }
- } else {
- LOG_ERROR("expected exactly one argument to cmsis_dap_serial <serial-number>");
- }
-
- return ERROR_OK;
-}
-
-static const struct command_registration cmsis_dap_subcommand_handlers[] = {
- {
- .name = "info",
- .handler = &cmsis_dap_handle_info_command,
- .mode = COMMAND_EXEC,
- .usage = "",
- .help = "show cmsis-dap info",
- },
- COMMAND_REGISTRATION_DONE
-};
-
-static const struct command_registration cmsis_dap_command_handlers[] = {
- {
- .name = "cmsis-dap",
- .mode = COMMAND_ANY,
- .help = "perform CMSIS-DAP management",
- .usage = "<cmd>",
- .chain = cmsis_dap_subcommand_handlers,
- },
- {
- .name = "cmsis_dap_vid_pid",
- .handler = &cmsis_dap_handle_vid_pid_command,
- .mode = COMMAND_CONFIG,
- .help = "the vendor ID and product ID of the CMSIS-DAP device",
- .usage = "(vid pid)* ",
- },
- {
- .name = "cmsis_dap_serial",
- .handler = &cmsis_dap_handle_serial_command,
- .mode = COMMAND_CONFIG,
- .help = "set the serial number of the adapter",
- .usage = "serial_string",
- },
- COMMAND_REGISTRATION_DONE
-};
-
-static const struct swd_driver cmsis_dap_swd_driver = {
- .init = cmsis_dap_swd_init,
- .frequency = cmsis_dap_swd_frequency,
- .switch_seq = cmsis_dap_swd_switch_seq,
- .read_reg = cmsis_dap_swd_read_reg,
- .write_reg = cmsis_dap_swd_write_reg,
- .run = cmsis_dap_swd_run_queue,
-};
-
-static const char * const cmsis_dap_transport[] = { "swd", NULL };
-
-struct jtag_interface cmsis_dap_interface = {
- .name = "cmsis-dap",
- .commands = cmsis_dap_command_handlers,
- .swd = &cmsis_dap_swd_driver,
- .transports = cmsis_dap_transport,
-
- .execute_queue = cmsis_dap_execute_queue,
- .speed = cmsis_dap_speed,
- .speed_div = cmsis_dap_speed_div,
- .khz = cmsis_dap_khz,
- .init = cmsis_dap_init,
- .quit = cmsis_dap_quit,
-};
Code Review / openocd.git / blobdiff