#define CMD_DAP_RESET_TARGET 0x0A
/* CMD_INFO */
-#define INFO_ID_VID 0x00 /* string */
-#define INFO_ID_PID 0x02 /* string */
+#define INFO_ID_VENDOR 0x01 /* string */
+#define INFO_ID_PRODUCT 0x02 /* string */
#define INFO_ID_SERNUM 0x03 /* string */
#define INFO_ID_FW_VER 0x04 /* string */
#define INFO_ID_TD_VEND 0x05 /* string */
struct cmsis_dap {
hid_device *dev_handle;
uint16_t packet_size;
- uint16_t packet_count;
+ int packet_count;
uint8_t *packet_buffer;
uint8_t caps;
uint8_t mode;
void *buffer;
};
+struct pending_request_block {
+ struct pending_transfer_result *transfers;
+ int transfer_count;
+};
+
struct pending_scan_result {
/** Offset in bytes in the CMD_DAP_JTAG_SEQ response buffer. */
unsigned first;
unsigned buffer_offset;
};
-static int pending_transfer_count, pending_queue_len;
-static struct pending_transfer_result *pending_transfers;
+/* Up to MIN(packet_count, MAX_PENDING_REQUESTS) requests may be issued
+ * until the first response arrives */
+#define MAX_PENDING_REQUESTS 3
+
+/* Pending requests are organized as a FIFO - circular buffer */
+/* Each block in FIFO can contain up to pending_queue_len transfers */
+static int pending_queue_len;
+static struct pending_request_block pending_fifo[MAX_PENDING_REQUESTS];
+static int pending_fifo_put_idx, pending_fifo_get_idx;
+static int pending_fifo_block_count;
/* pointers to buffers that will receive jtag scan results on the next flush */
#define MAX_PENDING_SCAN_RESULTS 256
static int queued_retval;
+static uint8_t output_pins = SWJ_PIN_SRST | SWJ_PIN_TRST;
+
static struct cmsis_dap *cmsis_dap_handle;
static int cmsis_dap_usb_open(void)
cmsis_dap_handle = NULL;
free(cmsis_dap_serial);
cmsis_dap_serial = NULL;
- free(pending_transfers);
- pending_transfers = NULL;
- return;
+ for (int i = 0; i < MAX_PENDING_REQUESTS; i++) {
+ free(pending_fifo[i].transfers);
+ pending_fifo[i].transfers = NULL;
+ }
}
-/* Send a message and receive the reply */
-static int cmsis_dap_usb_xfer(struct cmsis_dap *dap, int txlen)
+static int cmsis_dap_usb_write(struct cmsis_dap *dap, int txlen)
{
#ifdef CMSIS_DAP_JTAG_DEBUG
LOG_DEBUG("cmsis-dap usb xfer cmd=%02X", dap->packet_buffer[1]);
return ERROR_FAIL;
}
+ return ERROR_OK;
+}
+
+/* Send a message and receive the reply */
+static int cmsis_dap_usb_xfer(struct cmsis_dap *dap, int txlen)
+{
+ if (pending_fifo_block_count) {
+ LOG_ERROR("pending %d blocks, flushing", pending_fifo_block_count);
+ while (pending_fifo_block_count) {
+ hid_read_timeout(dap->dev_handle, dap->packet_buffer, dap->packet_size, 10);
+ pending_fifo_block_count--;
+ }
+ pending_fifo_put_idx = 0;
+ pending_fifo_get_idx = 0;
+ }
+
+ int retval = cmsis_dap_usb_write(dap, txlen);
+ if (retval != ERROR_OK)
+ return retval;
+
/* get reply */
retval = hid_read_timeout(dap->dev_handle, dap->packet_buffer, dap->packet_size, USB_TIMEOUT);
if (retval == -1 || retval == 0) {
return ERROR_OK;
}
-static int cmsis_dap_cmd_DAP_LED(uint8_t leds)
+static int cmsis_dap_cmd_DAP_LED(uint8_t led, uint8_t state)
{
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;
+ buffer[2] = led;
+ buffer[3] = state;
retval = cmsis_dap_usb_xfer(cmsis_dap_handle, 4);
if (retval != ERROR_OK || buffer[1] != 0x00) {
}
#endif
-static int cmsis_dap_swd_run_queue(void)
+static void cmsis_dap_swd_write_from_queue(struct cmsis_dap *dap)
{
- uint8_t *buffer = cmsis_dap_handle->packet_buffer;
+ uint8_t *buffer = dap->packet_buffer;
+ struct pending_request_block *block = &pending_fifo[pending_fifo_put_idx];
- LOG_DEBUG_IO("Executing %d queued transactions", pending_transfer_count);
+ LOG_DEBUG_IO("Executing %d queued transactions from FIFO index %d", block->transfer_count, pending_fifo_put_idx);
if (queued_retval != ERROR_OK) {
LOG_DEBUG("Skipping due to previous errors: %d", queued_retval);
goto skip;
}
- if (!pending_transfer_count)
+ if (block->transfer_count == 0)
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;
+ buffer[idx++] = block->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;
+ for (int i = 0; i < block->transfer_count; i++) {
+ struct pending_transfer_result *transfer = &(block->transfers[i]);
+ uint8_t cmd = transfer->cmd;
+ uint32_t data = transfer->data;
LOG_DEBUG_IO("%s %s reg %x %"PRIx32,
cmd & SWD_CMD_APnDP ? "AP" : "DP",
}
}
- queued_retval = cmsis_dap_usb_xfer(cmsis_dap_handle, idx);
+ queued_retval = cmsis_dap_usb_write(dap, 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],
+ pending_fifo_put_idx = (pending_fifo_put_idx + 1) % dap->packet_count;
+ pending_fifo_block_count++;
+ if (pending_fifo_block_count > dap->packet_count)
+ LOG_ERROR("too much pending writes %d", pending_fifo_block_count);
+
+ return;
+
+skip:
+ block->transfer_count = 0;
+}
+
+static void cmsis_dap_swd_read_process(struct cmsis_dap *dap, int timeout_ms)
+{
+ uint8_t *buffer = dap->packet_buffer;
+ struct pending_request_block *block = &pending_fifo[pending_fifo_get_idx];
+
+ if (pending_fifo_block_count == 0)
+ LOG_ERROR("no pending write");
+
+ /* get reply */
+ int retval = hid_read_timeout(dap->dev_handle, dap->packet_buffer, dap->packet_size, timeout_ms);
+ if (retval == 0 && timeout_ms < USB_TIMEOUT)
+ return;
+
+ if (retval == -1 || retval == 0) {
+ LOG_DEBUG("error reading data: %ls", hid_error(dap->dev_handle));
+ queued_retval = ERROR_FAIL;
+ goto skip;
+ }
+
+ if (buffer[2] & 0x08) {
+ LOG_DEBUG("CMSIS-DAP Protocol Error @ %d (wrong parity)", buffer[1]);
+ queued_retval = ERROR_FAIL;
+ goto skip;
+ }
+ uint8_t ack = buffer[2] & 0x07;
+ if (ack != SWD_ACK_OK) {
+ LOG_DEBUG("SWD ack not OK @ %d %s", buffer[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])
+ if (block->transfer_count != buffer[1])
LOG_ERROR("CMSIS-DAP transfer count mismatch: expected %d, got %d",
- pending_transfer_count, buffer[1]);
+ block->transfer_count, buffer[1]);
+ LOG_DEBUG_IO("Received results of %d queued transactions FIFO index %d", buffer[1], pending_fifo_get_idx);
+ size_t idx = 3;
for (int i = 0; i < buffer[1]; i++) {
- if (pending_transfers[i].cmd & SWD_CMD_RnW) {
+ struct pending_transfer_result *transfer = &(block->transfers[i]);
+ if (transfer->cmd & SWD_CMD_RnW) {
static uint32_t last_read;
uint32_t data = le_to_h_u32(&buffer[idx]);
uint32_t tmp = data;
LOG_DEBUG_IO("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)) {
+ if ((transfer->cmd & SWD_CMD_APnDP) ||
+ ((transfer->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;
+ if (transfer->buffer)
+ *(uint32_t *)(transfer->buffer) = tmp;
}
}
skip:
- pending_transfer_count = 0;
+ block->transfer_count = 0;
+ pending_fifo_get_idx = (pending_fifo_get_idx + 1) % dap->packet_count;
+ pending_fifo_block_count--;
+}
+
+static int cmsis_dap_swd_run_queue(void)
+{
+ if (pending_fifo_block_count)
+ cmsis_dap_swd_read_process(cmsis_dap_handle, 0);
+
+ cmsis_dap_swd_write_from_queue(cmsis_dap_handle);
+
+ while (pending_fifo_block_count)
+ cmsis_dap_swd_read_process(cmsis_dap_handle, USB_TIMEOUT);
+
+ pending_fifo_put_idx = 0;
+ pending_fifo_get_idx = 0;
+
int retval = queued_retval;
queued_retval = ERROR_OK;
static void cmsis_dap_swd_queue_cmd(uint8_t cmd, uint32_t *dst, uint32_t data)
{
- if (pending_transfer_count == pending_queue_len) {
+ if (pending_fifo[pending_fifo_put_idx].transfer_count == pending_queue_len) {
+ if (pending_fifo_block_count)
+ cmsis_dap_swd_read_process(cmsis_dap_handle, 0);
+
/* Not enough room in the queue. Run the queue. */
- queued_retval = cmsis_dap_swd_run_queue();
+ cmsis_dap_swd_write_from_queue(cmsis_dap_handle);
+
+ if (pending_fifo_block_count >= cmsis_dap_handle->packet_count)
+ cmsis_dap_swd_read_process(cmsis_dap_handle, USB_TIMEOUT);
}
if (queued_retval != ERROR_OK)
return;
- pending_transfers[pending_transfer_count].data = data;
- pending_transfers[pending_transfer_count].cmd = cmd;
+ struct pending_request_block *block = &pending_fifo[pending_fifo_put_idx];
+ struct pending_transfer_result *transfer = &(block->transfers[block->transfer_count]);
+ transfer->data = data;
+ transfer->cmd = cmd;
if (cmd & SWD_CMD_RnW) {
/* Queue a read transaction */
- pending_transfers[pending_transfer_count].buffer = dst;
+ transfer->buffer = dst;
}
- pending_transfer_count++;
+ block->transfer_count++;
}
static void cmsis_dap_swd_write_reg(uint8_t cmd, uint32_t value, uint32_t ap_delay_clk)
cmsis_dap_swd_queue_cmd(cmd, value, 0);
}
+static int cmsis_dap_get_serial_info(void)
+{
+ uint8_t *data;
+
+ int retval = cmsis_dap_cmd_DAP_Info(INFO_ID_SERNUM, &data);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (data[0]) /* strlen */
+ LOG_INFO("CMSIS-DAP: Serial# = %s", &data[1]);
+
+ return ERROR_OK;
+}
+
static int cmsis_dap_get_version_info(void)
{
uint8_t *data;
unsigned int s_len;
int retval;
- /* First disconnect before connecting, Atmel EDBG needs it for SAMD/R/L/C */
- cmsis_dap_cmd_DAP_Disconnect();
+ if ((output_pins & (SWJ_PIN_SRST | SWJ_PIN_TRST)) == (SWJ_PIN_SRST | SWJ_PIN_TRST)) {
+ /* Following workaround deasserts reset on most adapters.
+ * Do not reconnect if a reset line is active!
+ * Reconnecting would break connecting under reset. */
- /* 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;
+ /* 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(CONNECT_SWD);
+ if (retval != ERROR_OK)
+ return retval;
+ }
switch (seq) {
case LINE_RESET:
{
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;
int retval;
uint8_t *data;
- if (swd_mode) {
- retval = cmsis_dap_swd_open();
- if (retval != ERROR_OK)
- return retval;
- }
+ retval = cmsis_dap_usb_open();
+ if (retval != ERROR_OK)
+ return retval;
- if (cmsis_dap_handle == NULL) {
+ retval = cmsis_dap_get_caps_info();
+ if (retval != ERROR_OK)
+ return retval;
- /* JTAG init */
- retval = cmsis_dap_usb_open();
- if (retval != ERROR_OK)
- return retval;
+ retval = cmsis_dap_get_version_info();
+ if (retval != ERROR_OK)
+ return retval;
- retval = cmsis_dap_get_caps_info();
+ retval = cmsis_dap_get_serial_info();
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (swd_mode) {
+ retval = cmsis_dap_swd_open();
if (retval != ERROR_OK)
return retval;
-
+ } else {
/* Connect in JTAG mode */
if (!(cmsis_dap_handle->caps & INFO_CAPS_JTAG)) {
LOG_ERROR("CMSIS-DAP: JTAG not supported");
LOG_INFO("CMSIS-DAP: Interface Initialised (JTAG)");
}
- retval = cmsis_dap_get_version_info();
- if (retval != ERROR_OK)
- return retval;
+ /* Be conservative and supress submiting multiple HID requests
+ * until we get packet count info from the adaptor */
+ cmsis_dap_handle->packet_count = 1;
+ pending_queue_len = 12;
/* INFO_ID_PKT_SZ - short */
retval = cmsis_dap_cmd_DAP_Info(INFO_ID_PKT_SZ, &data);
* 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 */
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);
+ int pkt_cnt = data[1];
+ if (pkt_cnt > 1)
+ cmsis_dap_handle->packet_count = MIN(MAX_PENDING_REQUESTS, pkt_cnt);
+
+ LOG_DEBUG("CMSIS-DAP: Packet Count = %d", pkt_cnt);
+ }
+
+ LOG_DEBUG("Allocating FIFO for %d pending HID requests", cmsis_dap_handle->packet_count);
+ for (int i = 0; i < cmsis_dap_handle->packet_count; i++) {
+ pending_fifo[i].transfers = malloc(pending_queue_len * sizeof(struct pending_transfer_result));
+ if (!pending_fifo[i].transfers) {
+ LOG_ERROR("Unable to allocate memory for CMSIS-DAP queue");
+ return ERROR_FAIL;
+ }
}
+
retval = cmsis_dap_get_status();
if (retval != ERROR_OK)
return ERROR_FAIL;
if (retval != ERROR_OK)
return ERROR_FAIL;
}
+ /* Both LEDs on */
+ retval = cmsis_dap_cmd_DAP_LED(LED_ID_CONNECT, LED_ON);
+ if (retval != ERROR_OK)
+ return ERROR_FAIL;
- retval = cmsis_dap_cmd_DAP_LED(0x03); /* Both LEDs on */
+ retval = cmsis_dap_cmd_DAP_LED(LED_ID_RUN, LED_ON);
if (retval != ERROR_OK)
return ERROR_FAIL;
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);
+ retval = cmsis_dap_cmd_DAP_SWJ_Pins(0, SWJ_PIN_SRST, 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_quit(void)
{
cmsis_dap_cmd_DAP_Disconnect();
- cmsis_dap_cmd_DAP_LED(0x00); /* Both LEDs off */
+ /* Both LEDs off */
+ cmsis_dap_cmd_DAP_LED(LED_ID_RUN, LED_OFF);
+ cmsis_dap_cmd_DAP_LED(LED_ID_CONNECT, LED_OFF);
cmsis_dap_usb_close(cmsis_dap_handle);
return ERROR_OK;
}
-static void cmsis_dap_execute_reset(struct jtag_command *cmd)
+static int cmsis_dap_reset(int trst, int srst)
{
/* Set both TRST and SRST even if they're not enabled as
* there's no way to tristate them */
- uint8_t pins = 0;
- if (!cmd->cmd.reset->srst)
- pins |= SWJ_PIN_SRST;
- if (!cmd->cmd.reset->trst)
- pins |= SWJ_PIN_TRST;
+ output_pins = 0;
+ if (!srst)
+ output_pins |= SWJ_PIN_SRST;
+ if (!trst)
+ output_pins |= SWJ_PIN_TRST;
- int retval = cmsis_dap_cmd_DAP_SWJ_Pins(pins,
+ int retval = cmsis_dap_cmd_DAP_SWJ_Pins(output_pins,
SWJ_PIN_TRST | SWJ_PIN_SRST, 0, NULL);
if (retval != ERROR_OK)
LOG_ERROR("CMSIS-DAP: Interface reset failed");
+ return retval;
}
static void cmsis_dap_execute_sleep(struct jtag_command *cmd)
if (!queued_seq_count)
return;
- DEBUG_JTAG_IO("Flushing %d queued sequences (%d bytes) with %d pending scan results to capture",
+ LOG_DEBUG_IO("Flushing %d queued sequences (%d bytes) with %d pending scan results to capture",
queued_seq_count, queued_seq_buf_end, pending_scan_result_count);
/* prep CMSIS-DAP packet */
}
#ifdef CMSIS_DAP_JTAG_DEBUG
- DEBUG_JTAG_IO("USB response buf:");
+ LOG_DEBUG_IO("USB response buf:");
for (int c = 0; c < queued_seq_buf_end + 3; ++c)
printf("%02X ", buffer[c]);
printf("\n");
/* copy scan results into client buffers */
for (int i = 0; i < pending_scan_result_count; ++i) {
struct pending_scan_result *scan = &pending_scan_results[i];
- DEBUG_JTAG_IO("Copying pending_scan_result %d/%d: %d bits from byte %d -> buffer + %d bits",
+ LOG_DEBUG_IO("Copying pending_scan_result %d/%d: %d bits from byte %d -> buffer + %d bits",
i, pending_scan_result_count, scan->length, scan->first + 2, scan->buffer_offset);
#ifdef CMSIS_DAP_JTAG_DEBUG
for (uint32_t b = 0; b < DIV_ROUND_UP(scan->length, 8); ++b)
static void cmsis_dap_add_jtag_sequence(int s_len, const uint8_t *sequence, int s_offset,
bool tms, uint8_t *tdo_buffer, int tdo_buffer_offset)
{
- DEBUG_JTAG_IO("[at %d] %d bits, tms %s, seq offset %d, tdo buf %p, tdo offset %d",
+ LOG_DEBUG_IO("[at %d] %d bits, tms %s, seq offset %d, tdo buf %p, tdo offset %d",
queued_seq_buf_end,
s_len, tms ? "HIGH" : "LOW", s_offset, tdo_buffer, tdo_buffer_offset);
return;
if (s_len > 64) {
- DEBUG_JTAG_IO("START JTAG SEQ SPLIT");
+ LOG_DEBUG_IO("START JTAG SEQ SPLIT");
for (int offset = 0; offset < s_len; offset += 64) {
int len = s_len - offset;
if (len > 64)
len = 64;
- DEBUG_JTAG_IO("Splitting long jtag sequence: %d-bit chunk starting at offset %d", len, offset);
+ LOG_DEBUG_IO("Splitting long jtag sequence: %d-bit chunk starting at offset %d", len, offset);
cmsis_dap_add_jtag_sequence(
len,
sequence,
tdo_buffer == NULL ? 0 : (tdo_buffer_offset + offset)
);
}
- DEBUG_JTAG_IO("END JTAG SEQ SPLIT");
+ LOG_DEBUG_IO("END JTAG SEQ SPLIT");
return;
}
/* queue a sequence of bits to clock out TMS, executing if the buffer is full */
static void cmsis_dap_add_tms_sequence(const uint8_t *sequence, int s_len)
{
- DEBUG_JTAG_IO("%d bits: %02X", s_len, *sequence);
+ LOG_DEBUG_IO("%d bits: %02X", s_len, *sequence);
/* we use a series of CMD_DAP_JTAG_SEQ commands to toggle TMS,
because even though it seems ridiculously inefficient, it
allows us to combine TMS and scan sequences into the same
tms_scan = tap_get_tms_path(tap_get_state(), tap_get_end_state());
tms_scan_bits = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
- DEBUG_JTAG_IO("state move from %s to %s: %d clocks, %02X on tms",
+ LOG_DEBUG_IO("state move from %s to %s: %d clocks, %02X on tms",
tap_state_name(tap_get_state()), tap_state_name(tap_get_end_state()),
tms_scan_bits, tms_scan);
cmsis_dap_add_tms_sequence(&tms_scan, tms_scan_bits);
/* Execute a JTAG scan operation by queueing TMS and TDI/TDO sequences */
static void cmsis_dap_execute_scan(struct jtag_command *cmd)
{
- DEBUG_JTAG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN",
+ LOG_DEBUG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN",
jtag_scan_type(cmd->cmd.scan));
/* Make sure there are no trailing fields with num_bits == 0, or the logic below will fail. */
for (int i = 0; i < cmd->cmd.scan->num_fields; i++, field++) {
scan_size += field->num_bits;
- DEBUG_JTAG_IO("%s%s field %d/%d %d bits",
+ LOG_DEBUG_IO("%s%s field %d/%d %d bits",
field->in_value ? "in" : "",
field->out_value ? "out" : "",
i,
field->num_bits);
if (i == cmd->cmd.scan->num_fields - 1 && tap_get_state() != tap_get_end_state()) {
- DEBUG_JTAG_IO("Last field and have to move out of SHIFT state");
+ LOG_DEBUG_IO("Last field and have to move out of SHIFT state");
/* Last field, and we're leaving IRSHIFT/DRSHIFT. Clock last bit during tap
* movement. This last field can't have length zero, it was checked above. */
cmsis_dap_add_jtag_sequence(
0);
tap_set_state(tap_state_transition(tap_get_state(), 0));
} else {
- DEBUG_JTAG_IO("Internal field, staying in SHIFT state afterwards");
+ LOG_DEBUG_IO("Internal field, staying in SHIFT state afterwards");
/* Clocking part of a sequence into DR or IR with TMS=0,
leaving TMS=0 at the end so we can continue later */
cmsis_dap_add_jtag_sequence(
cmsis_dap_state_move();
}
- DEBUG_JTAG_IO("%s scan, %i bits, end in %s",
+ LOG_DEBUG_IO("%s scan, %i bits, end in %s",
(cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size,
tap_state_name(tap_get_end_state()));
}
static void cmsis_dap_execute_pathmove(struct jtag_command *cmd)
{
- DEBUG_JTAG_IO("pathmove: %i states, end in %i",
+ LOG_DEBUG_IO("pathmove: %i states, end in %i",
cmd->cmd.pathmove->num_states,
cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
static void cmsis_dap_execute_runtest(struct jtag_command *cmd)
{
- DEBUG_JTAG_IO("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles,
+ LOG_DEBUG_IO("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles,
cmd->cmd.runtest->end_state);
cmsis_dap_end_state(cmd->cmd.runtest->end_state);
static void cmsis_dap_execute_stableclocks(struct jtag_command *cmd)
{
- DEBUG_JTAG_IO("stableclocks %i cycles", cmd->cmd.runtest->num_cycles);
+ LOG_DEBUG_IO("stableclocks %i cycles", cmd->cmd.runtest->num_cycles);
cmsis_dap_stableclocks(cmd->cmd.runtest->num_cycles);
}
+static void cmsis_dap_execute_tms(struct jtag_command *cmd)
+{
+ LOG_DEBUG_IO("TMS: %d bits", cmd->cmd.tms->num_bits);
+ cmsis_dap_cmd_DAP_SWJ_Sequence(cmd->cmd.tms->num_bits, cmd->cmd.tms->bits);
+}
+
/* TODO: Is there need to call cmsis_dap_flush() for the JTAG_PATHMOVE,
* JTAG_RUNTEST, JTAG_STABLECLOCKS? */
static void cmsis_dap_execute_command(struct jtag_command *cmd)
{
switch (cmd->type) {
- case JTAG_RESET:
- cmsis_dap_flush();
- cmsis_dap_execute_reset(cmd);
- break;
case JTAG_SLEEP:
cmsis_dap_flush();
cmsis_dap_execute_sleep(cmd);
cmsis_dap_execute_stableclocks(cmd);
break;
case JTAG_TMS:
+ cmsis_dap_execute_tms(cmd);
+ break;
default:
LOG_ERROR("BUG: unknown JTAG command type 0x%X encountered", cmd->type);
exit(-1);
static int cmsis_dap_speed(int speed)
{
if (speed > DAP_MAX_CLOCK)
- LOG_INFO("High speed (adapter_khz %d) may be limited by adapter firmware.", speed);
+ LOG_INFO("High speed (adapter speed %d) may be limited by adapter firmware.", speed);
if (speed == 0) {
- LOG_ERROR("RTCK not supported. Set nonzero adapter_khz.");
+ LOG_ERROR("RTCK not supported. Set nonzero \"adapter speed\".");
return ERROR_JTAG_NOT_IMPLEMENTED;
}
return ERROR_OK;
}
-static int_least32_t cmsis_dap_swd_frequency(int_least32_t hz)
+COMMAND_HANDLER(cmsis_dap_handle_info_command)
{
- if (hz > 0)
- cmsis_dap_speed(hz / 1000);
+ if (cmsis_dap_get_version_info() == ERROR_OK)
+ cmsis_dap_get_status();
- return hz;
+ return ERROR_OK;
}
-
-COMMAND_HANDLER(cmsis_dap_handle_info_command)
+COMMAND_HANDLER(cmsis_dap_handle_cmd_command)
{
- if (cmsis_dap_get_version_info() == ERROR_OK)
- cmsis_dap_get_status();
+ int retval;
+ unsigned i;
+ uint8_t *buffer = cmsis_dap_handle->packet_buffer;
+
+ buffer[0] = 0; /* report number */
+
+ for (i = 0; i < CMD_ARGC; i++)
+ buffer[i + 1] = strtoul(CMD_ARGV[i], NULL, 16);
+
+ retval = cmsis_dap_usb_xfer(cmsis_dap_handle, CMD_ARGC + 1);
+
+ if (retval != ERROR_OK) {
+ LOG_ERROR("CMSIS-DAP command failed.");
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
+
+ LOG_INFO("Returned data %02" PRIx8 " %02" PRIx8 " %02" PRIx8 " %02" PRIx8,
+ buffer[1], buffer[2], buffer[3], buffer[4]);
return ERROR_OK;
}
.usage = "",
.help = "show cmsis-dap info",
},
+ {
+ .name = "cmd",
+ .handler = &cmsis_dap_handle_cmd_command,
+ .mode = COMMAND_EXEC,
+ .usage = "",
+ .help = "issue cmsis-dap command",
+ },
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,
static const char * const cmsis_dap_transport[] = { "swd", "jtag", NULL };
-struct jtag_interface cmsis_dap_interface = {
+static struct jtag_interface cmsis_dap_interface = {
+ .supported = DEBUG_CAP_TMS_SEQ,
+ .execute_queue = cmsis_dap_execute_queue,
+};
+
+struct adapter_driver cmsis_dap_adapter_driver = {
.name = "cmsis-dap",
- .commands = cmsis_dap_command_handlers,
- .swd = &cmsis_dap_swd_driver,
.transports = cmsis_dap_transport,
+ .commands = cmsis_dap_command_handlers,
- .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,
+ .reset = cmsis_dap_reset,
+ .speed = cmsis_dap_speed,
+ .khz = cmsis_dap_khz,
+ .speed_div = cmsis_dap_speed_div,
+
+ .jtag_ops = &cmsis_dap_interface,
+ .swd_ops = &cmsis_dap_swd_driver,
};