#include <stdlib.h>
#include <string.h>
#include <stdint.h>
-#include <time.h>
+#include <sys/time.h>
#include <sys/types.h>
-#include <libusb-1.0/libusb.h>
+#include <libusb.h>
+#include <errno.h>
#include "stlink-common.h"
#include "stlink-usb.h"
#include "uglylogging.h"
-#define LOG_TAG __FILE__
-#define DLOG(format, args...) ugly_log(UDEBUG, LOG_TAG, format, ## args)
-#define ILOG(format, args...) ugly_log(UINFO, LOG_TAG, format, ## args)
-#define WLOG(format, args...) ugly_log(UWARN, LOG_TAG, format, ## args)
-#define fatal(format, args...) ugly_log(UFATAL, LOG_TAG, format, ## args)
-
+/* code from bsd timersub.h
+http://www.gnu-darwin.org/www001/src/ports/net/libevnet/work/libevnet-0.3.8/libnostd/bsd/sys/time/timersub.h.html
+*/
+#if !defined timersub
+#define timersub(a, b, r) do { \
+ (r)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
+ (r)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
+ if ((r)->tv_usec < 0) { \
+ --(r)->tv_sec; \
+ (r)->tv_usec += 1000000; \
+ } \
+} while (0)
+#endif
enum SCSI_Generic_Direction {SG_DXFER_TO_DEV=0, SG_DXFER_FROM_DEV=0x80};
volatile unsigned long flags;
};
-static void on_trans_done(struct libusb_transfer * trans) {
+#ifndef LIBUSB_CALL
+# define LIBUSB_CALL
+#endif
+
+static void LIBUSB_CALL on_trans_done(struct libusb_transfer * trans) {
struct trans_ctx * const ctx = trans->user_data;
if (trans->status != LIBUSB_TRANSFER_COMPLETED)
if (rxsize != 0) {
/* read the response */
-
+
libusb_fill_bulk_transfer(handle->rep_trans, handle->usb_handle,
- handle->ep_rep, rxbuf, rxsize, NULL, NULL, 0);
-
+ handle->ep_rep, rxbuf, rxsize, NULL, NULL, 0);
+
if (submit_wait(handle, handle->rep_trans)) return -1;
res = handle->rep_trans->actual_length;
}
-
+
if ((handle->protocoll == 1) && terminate) {
- fprintf(stderr, "This is never used....\n");
- exit(EXIT_FAILURE);
/* Read the SG reply */
unsigned char sg_buf[13];
libusb_fill_bulk_transfer
(handle->rep_trans, handle->usb_handle,
handle->ep_rep, sg_buf, 13, NULL, NULL, 0);
res = submit_wait(handle, handle->rep_trans);
- /* The STLink doesn't seem to evaluate the sequence number */
+ /* The STLink doesn't seem to evaluate the sequence number */
handle->sg_transfer_idx++;
if (res ) return -1;
}
int i = 0;
memset(cmd, 0, sizeof (sl->c_buf));
if(slu->protocoll == 1) {
- fprintf(stderr, "This is never used....\n");
cmd[i++] = 'U';
cmd[i++] = 'S';
cmd[i++] = 'B';
}
}
+int32_t _stlink_usb_target_voltage(stlink_t *sl) {
+ struct stlink_libusb * const slu = sl->backend_data;
+ unsigned char* const rdata = sl->q_buf;
+ unsigned char* const cmd = sl->c_buf;
+ ssize_t size;
+ uint32_t rep_len = 8;
+ int i = fill_command(sl, SG_DXFER_FROM_DEV, rep_len);
+ uint32_t factor, reading;
+ int voltage;
+
+ cmd[i++] = STLINK_GET_TARGET_VOLTAGE;
+
+ size = send_recv(slu, 1, cmd, slu->cmd_len, rdata, rep_len);
+ if (size == -1) {
+ printf("[!] send_recv\n");
+ return -1;
+ } else if (size != 8) {
+ printf("[!] wrong length\n");
+ return -1;
+ }
+
+ factor = (rdata[3] << 24) | (rdata[2] << 16) | (rdata[1] << 8) | (rdata[0] << 0);
+ reading = (rdata[7] << 24) | (rdata[6] << 16) | (rdata[5] << 8) | (rdata[4] << 0);
+ voltage = 2400 * reading / factor;
+
+ return voltage;
+}
+
+uint32_t _stlink_usb_read_debug32(stlink_t *sl, uint32_t addr) {
+ struct stlink_libusb * const slu = sl->backend_data;
+ unsigned char* const rdata = sl->q_buf;
+ unsigned char* const cmd = sl->c_buf;
+ ssize_t size;
+ const int rep_len = 8;
+
+ int i = fill_command(sl, SG_DXFER_FROM_DEV, rep_len);
+ cmd[i++] = STLINK_DEBUG_COMMAND;
+ cmd[i++] = STLINK_JTAG_READDEBUG_32BIT;
+ write_uint32(&cmd[i], addr);
+ size = send_recv(slu, 1, cmd, slu->cmd_len, rdata, rep_len);
+ if (size == -1) {
+ printf("[!] send_recv\n");
+ return 0;
+ }
+ return read_uint32(rdata, 4);
+}
+
+void _stlink_usb_write_debug32(stlink_t *sl, uint32_t addr, uint32_t data) {
+ struct stlink_libusb * const slu = sl->backend_data;
+ unsigned char* const rdata = sl->q_buf;
+ unsigned char* const cmd = sl->c_buf;
+ ssize_t size;
+ const int rep_len = 2;
+
+ int i = fill_command(sl, SG_DXFER_FROM_DEV, rep_len);
+ cmd[i++] = STLINK_DEBUG_COMMAND;
+ cmd[i++] = STLINK_JTAG_WRITEDEBUG_32BIT;
+ write_uint32(&cmd[i], addr);
+ write_uint32(&cmd[i + 4], data);
+ size = send_recv(slu, 1, cmd, slu->cmd_len, rdata, rep_len);
+ if (size == -1) {
+ printf("[!] send_recv\n");
+ return;
+ }
+}
+
void _stlink_usb_write_mem32(stlink_t *sl, uint32_t addr, uint16_t len) {
struct stlink_libusb * const slu = sl->backend_data;
unsigned char* const data = sl->q_buf;
ssize_t size;
int rep_len = 2;
int i = fill_command(sl, SG_DXFER_FROM_DEV, rep_len);
-
+
cmd[i++] = STLINK_GET_CURRENT_MODE;
size = send_recv(slu, 1, cmd, slu->cmd_len, data, rep_len);
if (size == -1) {
}
+void _stlink_usb_jtag_reset(stlink_t * sl, int value) {
+ struct stlink_libusb * const slu = sl->backend_data;
+ unsigned char* const data = sl->q_buf;
+ unsigned char* const cmd = sl->c_buf;
+ ssize_t size;
+ int rep_len = 2;
+ int i = fill_command(sl, SG_DXFER_FROM_DEV, rep_len);
+
+ cmd[i++] = STLINK_DEBUG_COMMAND;
+ cmd[i++] = STLINK_JTAG_DRIVE_NRST;
+ cmd[i++] = value;
+
+ size = send_recv(slu, 1, cmd, slu->cmd_len, data, rep_len);
+ if (size == -1) {
+ printf("[!] send_recv\n");
+ return;
+ }
+}
+
+
void _stlink_usb_step(stlink_t* sl) {
struct stlink_libusb * const slu = sl->backend_data;
unsigned char* const data = sl->q_buf;
stlink_print_data(sl);
r = read_uint32(sl->q_buf, 0);
DLOG("r_idx (%2d) = 0x%08x\n", r_idx, r);
-
+
switch (r_idx) {
case 16:
regp->xpsr = r;
}
}
+/* See section C1.6 of the ARMv7-M Architecture Reference Manual */
+void _stlink_usb_read_unsupported_reg(stlink_t *sl, int r_idx, reg *regp) {
+ uint32_t r;
+
+ sl->q_buf[0] = (unsigned char) r_idx;
+ for (int i = 1; i < 4; i++) {
+ sl->q_buf[i] = 0;
+ }
+
+ _stlink_usb_write_mem32(sl, DCRSR, 4);
+ _stlink_usb_read_mem32(sl, DCRDR, 4);
+
+ r = read_uint32(sl->q_buf, 0);
+ DLOG("r_idx (%2d) = 0x%08x\n", r_idx, r);
+
+ switch (r_idx) {
+ case 0x14:
+ regp->primask = (uint8_t) (r & 0xFF);
+ regp->basepri = (uint8_t) ((r>>8) & 0xFF);
+ regp->faultmask = (uint8_t) ((r>>16) & 0xFF);
+ regp->control = (uint8_t) ((r>>24) & 0xFF);
+ break;
+ case 0x21:
+ regp->fpscr = r;
+ break;
+ default:
+ regp->s[r_idx - 0x40] = r;
+ break;
+ }
+}
+
+void _stlink_usb_read_all_unsupported_regs(stlink_t *sl, reg *regp) {
+ _stlink_usb_read_unsupported_reg(sl, 0x14, regp);
+ _stlink_usb_read_unsupported_reg(sl, 0x21, regp);
+
+ for (int i = 0; i < 32; i++) {
+ _stlink_usb_read_unsupported_reg(sl, 0x40+i, regp);
+ }
+}
+
+/* See section C1.6 of the ARMv7-M Architecture Reference Manual */
+void _stlink_usb_write_unsupported_reg(stlink_t *sl, uint32_t val, int r_idx, reg *regp) {
+ if (r_idx >= 0x1C && r_idx <= 0x1F) { /* primask, basepri, faultmask, or control */
+ /* These are held in the same register */
+ _stlink_usb_read_unsupported_reg(sl, 0x14, regp);
+
+ val = (uint8_t) (val>>24);
+
+ switch (r_idx) {
+ case 0x1C: /* control */
+ val = (((uint32_t) val) << 24) | (((uint32_t) regp->faultmask) << 16) | (((uint32_t) regp->basepri) << 8) | ((uint32_t) regp->primask);
+ break;
+ case 0x1D: /* faultmask */
+ val = (((uint32_t) regp->control) << 24) | (((uint32_t) val) << 16) | (((uint32_t) regp->basepri) << 8) | ((uint32_t) regp->primask);
+ break;
+ case 0x1E: /* basepri */
+ val = (((uint32_t) regp->control) << 24) | (((uint32_t) regp->faultmask) << 16) | (((uint32_t) val) << 8) | ((uint32_t) regp->primask);
+ break;
+ case 0x1F: /* primask */
+ val = (((uint32_t) regp->control) << 24) | (((uint32_t) regp->faultmask) << 16) | (((uint32_t) regp->basepri) << 8) | ((uint32_t) val);
+ break;
+ }
+
+ r_idx = 0x14;
+ }
+
+ write_uint32(sl->q_buf, val);
+
+ _stlink_usb_write_mem32(sl, DCRDR, 4);
+
+ sl->q_buf[0] = (unsigned char) r_idx;
+ sl->q_buf[1] = 0;
+ sl->q_buf[2] = 0x01;
+ sl->q_buf[3] = 0;
+
+ _stlink_usb_write_mem32(sl, DCRSR, 4);
+}
+
void _stlink_usb_write_reg(stlink_t *sl, uint32_t reg, int idx) {
struct stlink_libusb * const slu = sl->backend_data;
unsigned char* const data = sl->q_buf;
_stlink_usb_exit_dfu_mode,
_stlink_usb_core_id,
_stlink_usb_reset,
+ _stlink_usb_jtag_reset,
_stlink_usb_run,
_stlink_usb_status,
_stlink_usb_version,
+ _stlink_usb_read_debug32,
_stlink_usb_read_mem32,
+ _stlink_usb_write_debug32,
_stlink_usb_write_mem32,
_stlink_usb_write_mem8,
_stlink_usb_read_all_regs,
_stlink_usb_read_reg,
+ _stlink_usb_read_all_unsupported_regs,
+ _stlink_usb_read_unsupported_reg,
+ _stlink_usb_write_unsupported_reg,
_stlink_usb_write_reg,
_stlink_usb_step,
_stlink_usb_current_mode,
- _stlink_usb_force_debug
+ _stlink_usb_force_debug,
+ _stlink_usb_target_voltage
};
-stlink_t* stlink_open_usb(const int verbose) {
+stlink_t* stlink_open_usb(const int verbose, int reset) {
stlink_t* sl = NULL;
struct stlink_libusb* slu = NULL;
int error = -1;
ugly_init(verbose);
sl->backend = &_stlink_usb_backend;
sl->backend_data = slu;
-
+
sl->core_stat = STLINK_CORE_STAT_UNKNOWN;
if (libusb_init(&(slu->libusb_ctx))) {
WLOG("failed to init libusb context, wrong version of libraries?\n");
goto on_error;
}
-
- slu->usb_handle = libusb_open_device_with_vid_pid(slu->libusb_ctx, USB_ST_VID, USB_STLINK_32L_PID);
- if (slu->usb_handle == NULL) {
- // TODO - free usb context too...
- free(slu);
- WLOG("Couldn't find any ST-Link/V2 devices");
- return NULL;
+
+ libusb_device **list;
+ int cnt = libusb_get_device_list(slu->libusb_ctx, &list);
+ struct libusb_device_descriptor desc;
+ int devBus =0;
+ int devAddr=0;
+
+ char *device = getenv("STLINK_DEVICE");
+ if (device) {
+ char *c = strchr(device,':');
+ if (c==NULL) {
+ WLOG("STLINK_DEVICE must be <USB_BUS>:<USB_ADDR> format\n");
+ goto on_error;
+ }
+ devBus=atoi(device);
+ *c++=0;
+ devAddr=atoi(c);
+ ILOG("bus %03d dev %03d\n",devBus, devAddr);
+ }
+ while (cnt--){
+ libusb_get_device_descriptor( list[cnt], &desc );
+ if (desc.idVendor!=USB_ST_VID) continue;
+ if (devBus && devAddr)
+ if ((libusb_get_bus_number(list[cnt])!=devBus) || (libusb_get_device_address(list[cnt])!=devAddr)) continue;
+ if ( (desc.idProduct == USB_STLINK_32L_PID) || (desc.idProduct == USB_STLINK_NUCLEO_PID) ) break;
+ if (desc.idProduct == USB_STLINK_PID) {
+ slu->protocoll = 1;
+ break;
+ }
}
-
+
+ if (cnt < 0) {
+ WLOG ("Couldn't find %s ST-Link/V2 devices\n",(devBus && devAddr)?"matched":"any");
+ goto on_error;
+ } else {
+ int error = libusb_open(list[cnt], &slu->usb_handle);
+ if( error !=0 ) {
+ WLOG("Error %d (%s) opening ST-Link/V2 device %03d:%03d\n",
+ error, strerror (errno), libusb_get_bus_number(list[cnt]), libusb_get_device_address(list[cnt]));
+ goto on_error;
+ }
+ }
+
+ libusb_free_device_list(list, 1);
+
+
if (libusb_kernel_driver_active(slu->usb_handle, 0) == 1) {
int r;
-
+
r = libusb_detach_kernel_driver(slu->usb_handle, 0);
if (r<0) {
WLOG("libusb_detach_kernel_driver(() error %s\n", strerror(-r));
WLOG("libusb_alloc_transfer failed\n");
goto on_libusb_error;
}
+
// TODO - could use the scanning techniq from stm8 code here...
slu->ep_rep = 1 /* ep rep */ | LIBUSB_ENDPOINT_IN;
- slu->ep_req = 2 /* ep req */ | LIBUSB_ENDPOINT_OUT;
+ if (desc.idProduct == USB_STLINK_NUCLEO_PID) {
+ slu->ep_req = 1 /* ep req */ | LIBUSB_ENDPOINT_OUT;
+ } else {
+ slu->ep_req = 2 /* ep req */ | LIBUSB_ENDPOINT_OUT;
+ }
slu->sg_transfer_idx = 0;
// TODO - never used at the moment, always CMD_SIZE
/* success */
if (stlink_current_mode(sl) == STLINK_DEV_DFU_MODE) {
- ILOG("-- exit_dfu_mode\n");
- stlink_exit_dfu_mode(sl);
+ ILOG("-- exit_dfu_mode\n");
+ stlink_exit_dfu_mode(sl);
}
if (stlink_current_mode(sl) != STLINK_DEV_DEBUG_MODE) {
- stlink_enter_swd_mode(sl);
+ stlink_enter_swd_mode(sl);
}
+ if (reset) {
+ stlink_reset(sl);
+ }
stlink_version(sl);
- stlink_load_device_params(sl);
-
- error = 0;
+ error = stlink_load_device_params(sl);
on_libusb_error:
if (devs != NULL) {
return sl;
on_error:
+ if( slu->libusb_ctx)
+ libusb_exit(slu->libusb_ctx);
if (sl != NULL) free(sl);
if (slu != NULL) free(slu);
- return 0;
+ return NULL;
}
projects / fw / stlink / blobdiff