+++ /dev/null
-/***************************************************************************
- * 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, write to the *
- * Free Software Foundation, Inc., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
- ***************************************************************************/
-
-#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>
-
-#ifdef _DEBUG_JTAG_IO_
- #define DEBUG_IO(expr...) LOG_DEBUG(expr)
-#else
- #define DEBUG_IO(expr...) do {} while (0)
-#endif
-
-/*
- * 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 };
-
-#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 char *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;
-};
-
-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;
-
- 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 idenify 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]) && wcsstr(cur_dev->product_string, L"CMSIS-DAP")) {
- /*
- if the user hasn't specified VID:PID *and*
- product string contains "CMSIS-DAP", pick it
- */
- break;
- } 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))
- break;
- }
- }
-
- cur_dev = cur_dev->next;
- }
-
- if (NULL != cur_dev) {
- target_vid = cur_dev->vendor_id;
- target_pid = cur_dev->product_id;
- }
-
- hid_free_enumeration(devs);
-
- if (hid_init() != 0) {
- LOG_ERROR("unable to open HIDAPI");
- return ERROR_FAIL;
- }
-
- dev = hid_open(target_vid, target_pid, NULL);
-
- if (dev == NULL) {
- LOG_ERROR("unable to open CMSIS-DAP device");
- 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 */
- if (target_vid == 0x03eb && target_pid == 0x2111)
- 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();
-
- if (cmsis_dap_handle->packet_buffer)
- free(cmsis_dap_handle->packet_buffer);
-
- if (cmsis_dap_handle) {
- free(cmsis_dap_handle);
- cmsis_dap_handle = 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 - 1 - 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 wait, 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] = wait & 0xff;
- buffer[5] = (wait >> 8) & 0xff;
- buffer[6] = (wait >> 16) & 0xff;
- buffer[7] = (wait >> 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 wait, uint16_t 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] = wait & 0xff;
- buffer[4] = (wait >> 8) & 0xff;
- buffer[5] = retry & 0xff;
- buffer[6] = (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_read_reg(uint8_t cmd, uint32_t *value)
-{
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
- int retval;
- uint32_t val;
-
- DEBUG_IO("CMSIS-DAP: Read Reg 0x%02" PRIx8, cmd);
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_TFER;
- buffer[2] = 0x00;
- buffer[3] = 0x01;
- buffer[4] = cmd;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 5);
-
- /* TODO - need better response checking */
- if (retval != ERROR_OK || buffer[1] != 0x01) {
- LOG_ERROR("CMSIS-DAP: Read Error (0x%02" PRIx8 ")", buffer[2]);
- return buffer[2];
- }
-
- val = le_to_h_u32(&buffer[3]);
- DEBUG_IO("0x%08" PRIx32, val);
-
- if (value)
- *value = val;
-
- return retval;
-}
-
-static int cmsis_dap_swd_write_reg(uint8_t cmd, uint32_t value)
-{
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- DEBUG_IO("CMSIS-DAP: Write Reg 0x%02" PRIx8 " 0x%08" PRIx32, cmd, value);
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_TFER;
- buffer[2] = 0x00;
- buffer[3] = 0x01;
- buffer[4] = cmd;
- buffer[5] = (value) & 0xff;
- buffer[6] = (value >> 8) & 0xff;
- buffer[7] = (value >> 16) & 0xff;
- buffer[8] = (value >> 24) & 0xff;
- int retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 9);
-
- if (buffer[1] != 0x01) {
- LOG_ERROR("CMSIS-DAP: Write Error (0x%02" PRIx8 ")", buffer[2]);
- retval = buffer[2];
- }
-
- return retval;
-}
-
-static int cmsis_dap_swd_read_block(uint8_t cmd, uint32_t blocksize, uint8_t *dest_buf)
-{
- uint8_t *buffer;
- int tfer_sz;
- int retval = ERROR_OK;
- uint16_t read_count;
-
- DEBUG_IO("CMSIS-DAP: Read Block 0x%02" PRIx8 " %" PRIu32, cmd, blocksize);
-
- while (blocksize) {
-
- buffer = cmsis_dap_handle->packet_buffer;
- tfer_sz = blocksize;
- if (tfer_sz > 15)
- tfer_sz = 8;
-
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_TFER_BLOCK;
- buffer[2] = 0x00;
- buffer[3] = tfer_sz;
- buffer[4] = 0x00;
- buffer[5] = cmd;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 6);
-
- read_count = le_to_h_u16(&buffer[1]);
- if (read_count != tfer_sz) {
- LOG_ERROR("CMSIS-DAP: Block Read Error (0x%02" PRIx8 ")", buffer[3]);
- retval = buffer[3];
- }
-
- read_count *= 4;
- memcpy(dest_buf, &buffer[4], read_count);
-
- dest_buf += read_count;
- blocksize -= tfer_sz;
- }
-
- return retval;
-}
-
-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_reset_link(void)
-{
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
-
- LOG_DEBUG("CMSIS-DAP: cmsis_dap_reset_link");
- LOG_INFO("DAP_SWJ Sequence (reset: 50+ '1' followed by 0)");
-
- /* reset line with SWDIO high for >50 cycles */
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_SWJ_SEQ;
- buffer[2] = 7 * 8;
- buffer[3] = 0xff;
- buffer[4] = 0xff;
- buffer[5] = 0xff;
- buffer[6] = 0xff;
- buffer[7] = 0xff;
- buffer[8] = 0xff;
- buffer[9] = 0xff;
- int retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 10);
-
- if (retval != ERROR_OK || buffer[1] != DAP_OK)
- return ERROR_FAIL;
-
- /* 16bit JTAG-SWD sequence */
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_SWJ_SEQ;
- buffer[2] = 2 * 8;
- buffer[3] = 0x9e;
- buffer[4] = 0xe7;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 5);
-
- if (retval != ERROR_OK || buffer[1] != DAP_OK)
- return ERROR_FAIL;
-
- /* another reset just incase */
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_SWJ_SEQ;
- buffer[2] = 7 * 8;
- buffer[3] = 0xff;
- buffer[4] = 0xff;
- buffer[5] = 0xff;
- buffer[6] = 0xff;
- buffer[7] = 0xff;
- buffer[8] = 0xff;
- buffer[9] = 0xff;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 10);
-
- if (retval != ERROR_OK || buffer[1] != DAP_OK)
- return ERROR_FAIL;
-
- /* 16 cycle idle period */
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_SWJ_SEQ;
- buffer[2] = 2 * 8;
- buffer[3] = 0x00;
- buffer[4] = 0x00;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 5);
-
- if (retval != ERROR_OK || buffer[1] != DAP_OK)
- return ERROR_FAIL;
-
- DEBUG_IO("DAP Read IDCODE");
-
- /* read the id code is always the next sequence */
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_TFER;
- buffer[2] = 0x00;
- buffer[3] = 0x01;
- buffer[4] = 0x02;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 5);
-
- if (retval != ERROR_OK)
- return retval;
-
- if (buffer[1] == 0) {
- LOG_DEBUG("Result 0x%02" PRIx8 " 0x%02" PRIx8, buffer[1], buffer[2]);
-
- LOG_DEBUG("DAP Reset Target");
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_RESET_TARGET;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 2);
- LOG_DEBUG("Result 0x%02" PRIx8 " 0x%02" PRIx8, buffer[1], buffer[2]);
-
- LOG_DEBUG("DAP Write Abort");
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_WRITE_ABORT;
- buffer[2] = 0x00;
- buffer[3] = 0x1e/*0x1f*/;
- buffer[4] = 0x00;
- buffer[5] = 0x00;
- buffer[6] = 0x00;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 7);
- LOG_DEBUG("Result 0x%02" PRIx8, buffer[1]);
-
- return 0x80 + buffer[1];
- }
-
- LOG_DEBUG("DAP Write Abort");
- buffer[0] = 0; /* report number */
- buffer[1] = CMD_DAP_WRITE_ABORT;
- buffer[2] = 0x00;
- buffer[3] = 0x1e;
- buffer[4] = 0x00;
- buffer[5] = 0x00;
- buffer[6] = 0x00;
- retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 7);
- LOG_DEBUG("Result 0x%02" PRIx8, buffer[1]);
-
- return retval;
-}
-
-static int cmsis_dap_init(void)
-{
- int retval;
- uint8_t *data;
-
- 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);
-
- 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(100); /* 100kHz */
- if (retval != ERROR_OK)
- return ERROR_FAIL;
-
- retval = cmsis_dap_cmd_DAP_TFER_Configure(0, 64, 0);
- if (retval != ERROR_OK)
- return ERROR_FAIL;
- retval = cmsis_dap_cmd_DAP_SWD_Configure(0x00);
- 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");
- }
- }
-
- retval = cmsis_dap_reset_link();
- if (retval != ERROR_OK)
- return ERROR_FAIL;
-
- cmsis_dap_cmd_DAP_LED(0x00); /* Both LEDs off */
-
- LOG_INFO("CMSIS-DAP: Interface ready");
-
- return ERROR_OK;
-}
-
-static int cmsis_dap_swd_init(uint8_t trn)
-{
- int retval;
-
- DEBUG_IO("CMSIS-DAP: cmsis_dap_swd_init");
-
- 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_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;
-}
-
-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;
-}
-
-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
-};
-
-COMMAND_HANDLER(cmsis_dap_reset_command)
-{
- LOG_DEBUG("cmsis_dap_reset_command");
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(cmsis_dap_jtag_command)
-{
- LOG_DEBUG("cmsis_dap_jtag_command");
- return ERROR_OK;
-}
-
-static const struct command_registration cmsis_dap_jtag_subcommand_handlers[] = {
- {
- .name = "init",
- .mode = COMMAND_ANY,
- .handler = cmsis_dap_jtag_command,
- .usage = ""
- },
- {
- .name = "arp_init",
- .mode = COMMAND_ANY,
- .handler = cmsis_dap_jtag_command,
- .usage = ""
- },
- {
- .name = "arp_init-reset",
- .mode = COMMAND_ANY,
- .handler = cmsis_dap_reset_command,
- .usage = ""
- },
- {
- .name = "tapisenabled",
- .mode = COMMAND_EXEC,
- .jim_handler = jim_jtag_tap_enabler,
- },
- {
- .name = "tapenable",
- .mode = COMMAND_EXEC,
- .jim_handler = jim_jtag_tap_enabler,
- },
- {
- .name = "tapdisable",
- .mode = COMMAND_EXEC,
- .handler = cmsis_dap_jtag_command,
- .usage = "",
- },
- {
- .name = "configure",
- .mode = COMMAND_EXEC,
- .handler = cmsis_dap_jtag_command,
- .usage = "",
- },
- {
- .name = "cget",
- .mode = COMMAND_EXEC,
- .jim_handler = jim_jtag_configure,
- },
- {
- .name = "names",
- .mode = COMMAND_ANY,
- .handler = cmsis_dap_jtag_command,
- .usage = "",
- },
- 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)* ",
- },
- {
- /* this is currently a nasty hack so we get
- * reset working with non jtag interfaces */
- .name = "jtag",
- .mode = COMMAND_ANY,
- .usage = "",
- .chain = cmsis_dap_jtag_subcommand_handlers,
- },
- COMMAND_REGISTRATION_DONE
-};
-
-static const struct swd_driver cmsis_dap_swd_driver = {
- .init = cmsis_dap_swd_init,
- .read_reg = cmsis_dap_swd_read_reg,
- .write_reg = cmsis_dap_swd_write_reg,
- .read_block = cmsis_dap_swd_read_block
-};
-
-const char *cmsis_dap_transport[] = {"cmsis-dap", 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