-#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <time.h>
#include <sys/types.h>
-#include <libusb-1.0/libusb.h>
+#include <libusb.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)
+
enum SCSI_Generic_Direction {SG_DXFER_TO_DEV=0, SG_DXFER_FROM_DEV=0x80};
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
}
-/* Search for a STLINK device, either any or teh one with the given PID
- * Return the protocoll version
- */
-static int is_stlink_device(libusb_device * dev, uint16_t pid) {
- struct libusb_device_descriptor desc;
- int version;
-
- if (libusb_get_device_descriptor(dev, &desc))
- return 0;
-
- if (desc.idVendor != USB_ST_VID)
- return 0;
-
- if ((desc.idProduct != USB_STLINK_32L_PID) &&
- (desc.idProduct != USB_STLINK_PID ))
- return 0;
-
- if(pid && (pid != desc.idProduct))
- return 0;
- if (desc.idProduct == USB_STLINK_PID )
- version = 1;
- else
- version = 2;
-
- return version;
-}
-
static int fill_command
(stlink_t * sl, enum SCSI_Generic_Direction dir, uint32_t len) {
struct stlink_libusb * const slu = sl->backend_data;
unsigned char* const cmd = sl->c_buf;
int i = 0;
- memset(cmd, 0, sizeof (sl->q_buf));
+ 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';
cmd[i++] = 'C';
write_uint32(&cmd[i], slu->sg_transfer_idx);
- i+= 4;
- write_uint32(&cmd[i], len);
- i+= 4;
+ write_uint32(&cmd[i + 4], len);
+ i += 8;
cmd[i++] = (dir == SG_DXFER_FROM_DEV)?0x80:0;
cmd[i++] = 0; /* Logical unit */
cmd[i++] = 0xa; /* Command length */
int i = fill_command(sl, SG_DXFER_FROM_DEV, rep_len);
cmd[i++] = STLINK_GET_VERSION;
- cmd[i++] = 0x80;
- size = send_recv(slu, 1, cmd, slu->cmd_len, data, 6);
+ size = send_recv(slu, 1, cmd, slu->cmd_len, data, rep_len);
+ if (size == -1) {
+ printf("[!] send_recv\n");
+ return;
+ }
+}
+
+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;
unsigned char* const data = sl->q_buf;
unsigned char* const cmd = sl->c_buf;
- int i = fill_command(sl, SG_DXFER_TO_DEV, 0);
+ int i = fill_command(sl, SG_DXFER_TO_DEV, len);
cmd[i++] = STLINK_DEBUG_COMMAND;
cmd[i++] = STLINK_DEBUG_WRITEMEM_32BIT;
write_uint32(&cmd[i], addr);
- i += 4;
- write_uint16(&cmd[i], len);
+ write_uint16(&cmd[i + 4], len);
send_only(slu, 0, cmd, slu->cmd_len);
-#if Q_BUF_LEN < UINT16_MAX
- assert(len < sizeof(sl->q_buf)); // makes a compiler warning? always true?
-#endif
- assert((len & 3) == 0);
send_only(slu, 1, data, len);
}
cmd[i++] = STLINK_DEBUG_COMMAND;
cmd[i++] = STLINK_DEBUG_WRITEMEM_8BIT;
write_uint32(&cmd[i], addr);
- i += 4;
- write_uint16(&cmd[i], len);
+ write_uint16(&cmd[i + 4], len);
send_only(slu, 0, cmd, slu->cmd_len);
-
-#if Q_BUF_LEN < UINT16_MAX
- assert(len < sizeof(sl->q_buf)); // makes a compiler warning? always true?
-#endif
send_only(slu, 1, data, len);
}
struct stlink_libusb * const slu = sl->backend_data;
unsigned char* const cmd = sl->c_buf;
ssize_t size;
- int i = fill_command(sl, SG_DXFER_FROM_DEV, 0);
+ const int rep_len = 0;
+ int i = fill_command(sl, SG_DXFER_FROM_DEV, rep_len);
cmd[i++] = STLINK_DEBUG_COMMAND;
cmd[i++] = STLINK_DEBUG_ENTER;
}
+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)?0:1;
+
+ 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;
struct stlink_libusb * const slu = sl->backend_data;
unsigned char* const cmd = sl->c_buf;
ssize_t size;
- int i = fill_command(sl, SG_DXFER_TO_DEV, 0);
+ int i = fill_command(sl, SG_DXFER_FROM_DEV, 0);
cmd[i++] = STLINK_DEBUG_COMMAND;
cmd[i++] = STLINK_DEBUG_EXIT;
ssize_t size;
int i = fill_command(sl, SG_DXFER_FROM_DEV, len);
-#if Q_BUF_LEN < UINT16_MAX
- assert(len < sizeof(sl->q_buf));
-#endif
-
cmd[i++] = STLINK_DEBUG_COMMAND;
cmd[i++] = STLINK_DEBUG_READMEM_32BIT;
write_uint32(&cmd[i], addr);
- i += 4;
- /* windows usb logs show only one byte is used for length ... */
- // Presumably, this is because usb transfers can't be 16 bits worth of bytes long...
- assert (len < 256);
- cmd[i] = (uint8_t) len;
+ write_uint16(&cmd[i + 4], len);
size = send_recv(slu, 1, cmd, slu->cmd_len, data, len);
if (size == -1) {
if (sl->verbose < 2)
return;
- DD(sl, "xpsr = 0x%08x\n", read_uint32(sl->q_buf, 64));
- DD(sl, "main_sp = 0x%08x\n", read_uint32(sl->q_buf, 68));
- DD(sl, "process_sp = 0x%08x\n", read_uint32(sl->q_buf, 72));
- DD(sl, "rw = 0x%08x\n", read_uint32(sl->q_buf, 76));
- DD(sl, "rw2 = 0x%08x\n", read_uint32(sl->q_buf, 80));
+ DLOG("xpsr = 0x%08x\n", read_uint32(sl->q_buf, 64));
+ DLOG("main_sp = 0x%08x\n", read_uint32(sl->q_buf, 68));
+ DLOG("process_sp = 0x%08x\n", read_uint32(sl->q_buf, 72));
+ DLOG("rw = 0x%08x\n", read_uint32(sl->q_buf, 76));
+ DLOG("rw2 = 0x%08x\n", read_uint32(sl->q_buf, 80));
}
void _stlink_usb_read_reg(stlink_t *sl, int r_idx, reg *regp) {
sl->q_len = (size_t) size;
stlink_print_data(sl);
r = read_uint32(sl->q_buf, 0);
- DD(sl, "r_idx (%2d) = 0x%08x\n", r_idx, r);
+ DLOG("r_idx (%2d) = 0x%08x\n", r_idx, r);
switch (r_idx) {
case 16:
_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,
struct stlink_libusb* slu = NULL;
int error = -1;
libusb_device** devs = NULL;
- libusb_device* dev;
- ssize_t i;
- ssize_t count;
int config;
- char *iSerial = NULL;
sl = malloc(sizeof (stlink_t));
slu = malloc(sizeof (struct stlink_libusb));
memset(sl, 0, sizeof (stlink_t));
memset(slu, 0, sizeof (struct stlink_libusb));
- sl->verbose = verbose;
+ ugly_init(verbose);
sl->backend = &_stlink_usb_backend;
sl->backend_data = slu;
sl->core_stat = STLINK_CORE_STAT_UNKNOWN;
- /* flash memory settings */
- sl->flash_base = STM32_FLASH_BASE;
- sl->flash_size = STM32_FLASH_SIZE;
- sl->flash_pgsz = STM32_FLASH_PGSZ;
-
- /* system memory */
- sl->sys_base = STM32_SYSTEM_BASE;
- sl->sys_size = STM32_SYSTEM_SIZE;
-
- /* sram memory settings */
- sl->sram_base = STM32_SRAM_BASE;
- sl->sram_size = STM32L_SRAM_SIZE;
-
if (libusb_init(&(slu->libusb_ctx))) {
- fprintf(stderr, "failed to init libusb context, wrong version of libraries?\n");
- goto on_error;
+ WLOG("failed to init libusb context, wrong version of libraries?\n");
+ goto on_error;
}
- count = libusb_get_device_list(slu->libusb_ctx, &devs);
- if (count < 0) {
- printf("libusb_get_device_list\n");
- goto on_libusb_error;
- }
-
- for (i = 0; i < count; ++i) {
- dev = devs[i];
- slu->protocoll = is_stlink_device(dev, 0);
- if (slu->protocoll > 0) break;
- }
- if (i == count) goto on_libusb_error;
-
- if (libusb_open(dev, &(slu->usb_handle))) {
- printf("libusb_open()\n");
- goto on_libusb_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) {
+ WLOG("Couldn't find any ST-Link/V2 devices");
+ goto on_error;
}
- if (iSerial) {
- unsigned char serial[256];
- struct libusb_device_descriptor desc;
- int r;
-
- r = libusb_get_device_descriptor(dev, &desc);
- if (r<0) {
- printf("Can't get descriptor to match Iserial\n");
- goto on_libusb_error;
- }
- r = libusb_get_string_descriptor_ascii
- (slu->usb_handle, desc.iSerialNumber, serial, 256);
- if (r<0) {
- printf("Can't get Serialnumber to match Iserial\n");
- goto on_libusb_error;
- }
- if (strcmp((char*)serial, iSerial)) {
- printf("Mismatch in serial numbers, dev %s vs given %s\n",
- serial, iSerial);
- goto on_libusb_error;
- }
- }
-
if (libusb_kernel_driver_active(slu->usb_handle, 0) == 1) {
int r;
r = libusb_detach_kernel_driver(slu->usb_handle, 0);
- if (r<0)
- printf("libusb_detach_kernel_driver(() error %s\n", strerror(-r));
- goto on_libusb_error;
+ if (r<0) {
+ WLOG("libusb_detach_kernel_driver(() error %s\n", strerror(-r));
+ goto on_libusb_error;
+ }
}
- libusb_reset_device(slu->usb_handle);
-
if (libusb_get_configuration(slu->usb_handle, &config)) {
/* this may fail for a previous configured device */
- printf("libusb_get_configuration()\n");
+ WLOG("libusb_get_configuration()\n");
goto on_libusb_error;
}
printf("setting new configuration (%d -> 1)\n", config);
if (libusb_set_configuration(slu->usb_handle, 1)) {
/* this may fail for a previous configured device */
- printf("libusb_set_configuration()\n");
+ WLOG("libusb_set_configuration() failed\n");
goto on_libusb_error;
}
}
if (libusb_claim_interface(slu->usb_handle, 0)) {
- printf("libusb_claim_interface()\n");
+ WLOG("libusb_claim_interface() failed\n");
goto on_libusb_error;
}
slu->req_trans = libusb_alloc_transfer(0);
if (slu->req_trans == NULL) {
- printf("libusb_alloc_transfer\n");
+ WLOG("libusb_alloc_transfer failed\n");
goto on_libusb_error;
}
slu->rep_trans = libusb_alloc_transfer(0);
if (slu->rep_trans == NULL) {
- printf("libusb_alloc_transfer\n");
+ 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;
- /* libusb_reset_device(slu->usb_handle); */
slu->sg_transfer_idx = 0;
+ // TODO - never used at the moment, always CMD_SIZE
slu->cmd_len = (slu->protocoll == 1)? STLINK_SG_SIZE: STLINK_CMD_SIZE;
/* success */
+
if (stlink_current_mode(sl) == STLINK_DEV_DFU_MODE) {
- printf("-- exit_dfu_mode\n");
+ 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_reset(sl);
+ stlink_load_device_params(sl);
stlink_version(sl);
+
error = 0;
on_libusb_error:
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;
projects / fw / stlink / blobdiff