#define STLINK_V2_PID (0x3748)
#define STLINK_V2_1_PID (0x374B)
#define STLINK_V2_1_NO_MSD_PID (0x3752)
+#define STLINK_V3_USBLOADER_PID (0x374D)
+#define STLINK_V3E_PID (0x374E)
+#define STLINK_V3S_PID (0x374F)
+#define STLINK_V3_2VCP_PID (0x3753)
-/* the current implementation of the stlink limits
- * 8bit read/writes to max 64 bytes. */
+/*
+ * ST-Link/V1, ST-Link/V2 and ST-Link/V2.1 are full-speed USB devices and
+ * this limits the bulk packet size and the 8bit read/writes to max 64 bytes.
+ * STLINK-V3 is a high speed USB 2.0 and the limit is 512 bytes.
+ */
#define STLINK_MAX_RW8 (64)
+#define STLINKV3_MAX_RW8 (512)
/* "WAIT" responses will be retried (with exponential backoff) at
* most this many times before failing to caller.
enum stlink_jtag_api_version {
STLINK_JTAG_API_V1 = 1,
STLINK_JTAG_API_V2,
+ STLINK_JTAG_API_V3,
};
/** */
#define STLINK_DEBUG_APIV2_READMEM_16BIT 0x47
#define STLINK_DEBUG_APIV2_WRITEMEM_16BIT 0x48
+#define STLINK_APIV3_SET_COM_FREQ 0x61
+#define STLINK_APIV3_GET_COM_FREQ 0x62
+
+#define STLINK_APIV3_GET_VERSION_EX 0xFB
+
#define STLINK_DEBUG_APIV2_DRIVE_NRST_LOW 0x00
#define STLINK_DEBUG_APIV2_DRIVE_NRST_HIGH 0x01
#define STLINK_DEBUG_APIV2_DRIVE_NRST_PULSE 0x02
#define STLINK_TRACE_SIZE 4096
#define STLINK_TRACE_MAX_HZ 2000000
+#define STLINK_V3_MAX_FREQ_NB 10
+
/** */
enum stlink_mode {
STLINK_MODE_UNKNOWN = 0,
static void stlink_usb_init_buffer(void *handle, uint8_t direction, uint32_t size);
static int stlink_swim_status(void *handle);
+/** */
+static unsigned int stlink_usb_block(void *handle)
+{
+ struct stlink_usb_handle_s *h = handle;
+
+ assert(handle != NULL);
+
+ if (h->version.stlink == 3)
+ return STLINKV3_MAX_RW8;
+ else
+ return STLINK_MAX_RW8;
+}
+
/** */
static int stlink_usb_xfer_v1_get_status(void *handle)
{
int res;
uint32_t flags;
uint16_t version;
- uint8_t v, x, y, jtag, swim, msd;
- char v_str[4 * (1 + 3) + 1]; /* VvJjMmSs */
+ uint8_t v, x, y, jtag, swim, msd, bridge = 0;
+ char v_str[5 * (1 + 3) + 1]; /* VvJjMmBbSs */
char *p;
struct stlink_usb_handle_s *h = handle;
break;
}
+ /* STLINK-V3 requires a specific command */
+ if (v == 3 && x == 0 && y == 0) {
+ stlink_usb_init_buffer(handle, h->rx_ep, 16);
+
+ h->cmdbuf[h->cmdidx++] = STLINK_APIV3_GET_VERSION_EX;
+
+ res = stlink_usb_xfer(handle, h->databuf, 12);
+ if (res != ERROR_OK)
+ return res;
+
+ v = h->databuf[0];
+ swim = h->databuf[1];
+ jtag = h->databuf[2];
+ msd = h->databuf[3];
+ bridge = h->databuf[4];
+ h->vid = le_to_h_u16(h->databuf + 8);
+ h->pid = le_to_h_u16(h->databuf + 10);
+ }
+
h->version.stlink = v;
h->version.jtag = jtag;
h->version.swim = swim;
if (h->version.jtag >= 26)
flags |= STLINK_F_HAS_MEM_16BIT;
+ break;
+ case 3:
+ /* all STLINK-V3 use api-v3 */
+ h->version.jtag_api = STLINK_JTAG_API_V3;
+
+ /* STLINK-V3 is a superset of ST-LINK/V2 */
+
+ /* API for trace */
+ /* API for target voltage */
+ flags |= STLINK_F_HAS_TRACE;
+
+ /* preferred API to get last R/W status */
+ flags |= STLINK_F_HAS_GETLASTRWSTATUS2;
+
+ /* API to read/write memory at 16 bit */
+ flags |= STLINK_F_HAS_MEM_16BIT;
+
break;
default:
break;
p += sprintf(p, "J%d", jtag);
if (msd)
p += sprintf(p, "M%d", msd);
+ if (bridge)
+ p += sprintf(p, "B%d", bridge);
if (swim || !msd)
p += sprintf(p, "S%d", swim);
* status
* TODO: we need the test on api V1 too
*/
- if (h->version.jtag_api == STLINK_JTAG_API_V2)
+ if (h->version.jtag_api != STLINK_JTAG_API_V1)
rx_size = 2;
stlink_usb_init_buffer(handle, h->rx_ep, rx_size);
h->reconnect_pending = false;
}
- if (h->version.jtag_api == STLINK_JTAG_API_V2) {
+ if (h->version.jtag_api != STLINK_JTAG_API_V1) {
res = stlink_usb_v2_get_status(handle);
if (res == TARGET_UNKNOWN)
h->reconnect_pending = true;
assert(handle != NULL);
- if (h->version.jtag_api == STLINK_JTAG_API_V2) {
+ if (h->version.jtag_api != STLINK_JTAG_API_V1) {
res = stlink_usb_write_debug_reg(handle, DCB_DHCSR, DBGKEY|C_DEBUGEN);
return res;
assert(handle != NULL);
- if (h->version.jtag_api == STLINK_JTAG_API_V2) {
+ if (h->version.jtag_api != STLINK_JTAG_API_V1) {
res = stlink_usb_write_debug_reg(handle, DCB_DHCSR, DBGKEY|C_HALT|C_DEBUGEN);
return res;
assert(handle != NULL);
- if (h->version.jtag_api == STLINK_JTAG_API_V2) {
+ if (h->version.jtag_api != STLINK_JTAG_API_V1) {
/* TODO: this emulates the v1 api, it should really use a similar auto mask isr
* that the Cortex-M3 currently does. */
stlink_usb_write_debug_reg(handle, DCB_DHCSR, DBGKEY|C_HALT|C_MASKINTS|C_DEBUGEN);
assert(handle != NULL);
- /* max 8bit read/write is 64bytes */
- if (len > STLINK_MAX_RW8) {
- LOG_DEBUG("max buffer length exceeded");
+ /* max 8 bit read/write is 64 bytes or 512 bytes for v3 */
+ if (len > stlink_usb_block(h)) {
+ LOG_DEBUG("max buffer (%d) length exceeded", stlink_usb_block(h));
return ERROR_FAIL;
}
assert(handle != NULL);
- /* max 8bit read/write is 64bytes */
- if (len > STLINK_MAX_RW8) {
- LOG_DEBUG("max buffer length exceeded");
+ /* max 8 bit read/write is 64 bytes or 512 bytes for v3 */
+ if (len > stlink_usb_block(h)) {
+ LOG_DEBUG("max buffer length (%d) exceeded", stlink_usb_block(h));
return ERROR_FAIL;
}
while (count) {
bytes_remaining = (size != 1) ? \
- stlink_max_block_size(h->max_mem_packet, addr) : STLINK_MAX_RW8;
+ stlink_max_block_size(h->max_mem_packet, addr) : stlink_usb_block(h);
if (count < bytes_remaining)
bytes_remaining = count;
while (count) {
bytes_remaining = (size != 1) ? \
- stlink_max_block_size(h->max_mem_packet, addr) : STLINK_MAX_RW8;
+ stlink_max_block_size(h->max_mem_packet, addr) : stlink_usb_block(h);
if (count < bytes_remaining)
bytes_remaining = count;
unsigned int i;
int speed_index = -1;
int speed_diff = INT_MAX;
+ int last_valid_speed = -1;
bool match = true;
for (i = 0; i < map_size; i++) {
+ if (!map[i].speed)
+ continue;
+ last_valid_speed = i;
if (khz == map[i].speed) {
speed_index = i;
break;
if (speed_index == -1) {
/* this will only be here if we cannot match the slow speed.
* use the slowest speed we support.*/
- speed_index = map_size - 1;
+ speed_index = last_valid_speed;
match = false;
} else if (i == map_size)
match = false;
LOG_DEBUG("Supported clock speeds are:");
for (i = 0; i < map_size; i++)
- LOG_DEBUG("%d kHz", map[i].speed);
+ if (map[i].speed)
+ LOG_DEBUG("%d kHz", map[i].speed);
+}
+
+static int stlink_get_com_freq(void *handle, bool is_jtag, struct speed_map *map)
+{
+ struct stlink_usb_handle_s *h = handle;
+ int i;
+
+ if (h->version.jtag_api != STLINK_JTAG_API_V3) {
+ LOG_ERROR("Unknown command");
+ return 0;
+ }
+
+ stlink_usb_init_buffer(handle, h->rx_ep, 16);
+
+ h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
+ h->cmdbuf[h->cmdidx++] = STLINK_APIV3_GET_COM_FREQ;
+ h->cmdbuf[h->cmdidx++] = is_jtag ? 1 : 0;
+
+ int res = stlink_usb_xfer(handle, h->databuf, 52);
+
+ int size = h->databuf[8];
+
+ if (size > STLINK_V3_MAX_FREQ_NB)
+ size = STLINK_V3_MAX_FREQ_NB;
+
+ for (i = 0; i < size; i++) {
+ map[i].speed = le_to_h_u32(&h->databuf[12 + 4 * i]);
+ map[i].speed_divisor = i;
+ }
+
+ /* set to zero all the next entries */
+ for (i = size; i < STLINK_V3_MAX_FREQ_NB; i++)
+ map[i].speed = 0;
+
+ return res;
+}
+
+static int stlink_set_com_freq(void *handle, bool is_jtag, unsigned int frequency)
+{
+ struct stlink_usb_handle_s *h = handle;
+
+ if (h->version.jtag_api != STLINK_JTAG_API_V3) {
+ LOG_ERROR("Unknown command");
+ return 0;
+ }
+
+ stlink_usb_init_buffer(handle, h->rx_ep, 16);
+
+ h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
+ h->cmdbuf[h->cmdidx++] = STLINK_APIV3_SET_COM_FREQ;
+ h->cmdbuf[h->cmdidx++] = is_jtag ? 1 : 0;
+ h->cmdbuf[h->cmdidx++] = 0;
+
+ h_u32_to_le(&h->cmdbuf[4], frequency);
+
+ return stlink_usb_xfer(handle, h->databuf, 8);
+}
+
+static int stlink_speed_v3(void *handle, bool is_jtag, int khz, bool query)
+{
+ struct stlink_usb_handle_s *h = handle;
+ int speed_index;
+ struct speed_map map[STLINK_V3_MAX_FREQ_NB];
+
+ stlink_get_com_freq(h, is_jtag, map);
+
+ speed_index = stlink_match_speed_map(map, ARRAY_SIZE(map), khz, query);
+
+ if (!query) {
+ int result = stlink_set_com_freq(h, is_jtag, map[speed_index].speed);
+ if (result != ERROR_OK) {
+ LOG_ERROR("Unable to set adapter speed");
+ return khz;
+ }
+ }
+ return map[speed_index].speed;
}
static int stlink_speed(void *handle, int khz, bool query)
if (!handle)
return khz;
- if (h->transport == HL_TRANSPORT_SWIM)
+ switch (h->transport) {
+ case HL_TRANSPORT_SWIM:
return stlink_speed_swim(handle, khz, query);
- else if (h->transport == HL_TRANSPORT_SWD)
- return stlink_speed_swd(handle, khz, query);
- else if (h->transport == HL_TRANSPORT_JTAG)
- return stlink_speed_jtag(handle, khz, query);
+ break;
+ case HL_TRANSPORT_SWD:
+ if (h->version.jtag_api == STLINK_JTAG_API_V3)
+ return stlink_speed_v3(handle, false, khz, query);
+ else
+ return stlink_speed_swd(handle, khz, query);
+ break;
+ case HL_TRANSPORT_JTAG:
+ if (h->version.jtag_api == STLINK_JTAG_API_V3)
+ return stlink_speed_v3(handle, true, khz, query);
+ else
+ return stlink_speed_jtag(handle, khz, query);
+ break;
+ default:
+ break;
+ }
return khz;
}
h->version.stlink = 1;
h->tx_ep = STLINK_TX_EP;
break;
+ case STLINK_V3_USBLOADER_PID:
+ case STLINK_V3E_PID:
+ case STLINK_V3S_PID:
+ case STLINK_V3_2VCP_PID:
+ h->version.stlink = 3;
+ h->tx_ep = STLINK_V2_1_TX_EP;
+ h->trace_ep = STLINK_V2_1_TRACE_EP;
+ break;
case STLINK_V2_1_PID:
case STLINK_V2_1_NO_MSD_PID:
h->version.stlink = 2;
}
}
+ if (h->version.jtag_api == STLINK_JTAG_API_V3) {
+ struct speed_map map[STLINK_V3_MAX_FREQ_NB];
+
+ stlink_get_com_freq(h, (h->transport == HL_TRANSPORT_JTAG), map);
+ stlink_dump_speed_map(map, ARRAY_SIZE(map));
+ stlink_speed(h, param->initial_interface_speed, false);
+ }
+
/* get cpuid, so we can determine the max page size
* start with a safe default */
h->max_mem_packet = (1 << 10);
projects / fw / openocd / commitdiff