#include "config.h"
#endif
-#include "jtag.h"
+#include "interface.h"
+#include "commands.h"
#include <usb.h>
#define JLINK_WRITE_ENDPOINT 0x02
#define JLINK_READ_ENDPOINT 0x81
+static unsigned int jlink_write_ep = JLINK_WRITE_ENDPOINT;
+static unsigned int jlink_read_ep = JLINK_READ_ENDPOINT;
+static unsigned int jlink_hw_jtag_version = 2;
+
#define JLINK_USB_TIMEOUT 1000
// See Section 1.3.2 of the Segger JLink USB protocol manual
static u8 usb_emu_result_buffer[JLINK_EMU_RESULT_BUFFER_SIZE];
/* Constants for JLink command */
-#define EMU_CMD_VERSION 0x01
-#define EMU_CMD_SET_SPEED 0x05
-#define EMU_CMD_GET_STATE 0x07
+#define EMU_CMD_VERSION 0x01
+#define EMU_CMD_SET_SPEED 0x05
+#define EMU_CMD_GET_STATE 0x07
#define EMU_CMD_HW_CLOCK 0xc8
-#define EMU_CMD_HW_TMS0 0xc9
-#define EMU_CMD_HW_TMS1 0xca
-#define EMU_CMD_HW_JTAG3 0xcf
+#define EMU_CMD_HW_TMS0 0xc9
+#define EMU_CMD_HW_TMS1 0xca
+#define EMU_CMD_HW_JTAG2 0xce
+#define EMU_CMD_HW_JTAG3 0xcf
#define EMU_CMD_GET_MAX_MEM_BLOCK 0xd4
-#define EMU_CMD_HW_RESET0 0xdc
-#define EMU_CMD_HW_RESET1 0xdd
-#define EMU_CMD_HW_TRST0 0xde
-#define EMU_CMD_HW_TRST1 0xdf
-#define EMU_CMD_GET_CAPS 0xe8
+#define EMU_CMD_HW_RESET0 0xdc
+#define EMU_CMD_HW_RESET1 0xdd
+#define EMU_CMD_HW_TRST0 0xde
+#define EMU_CMD_HW_TRST1 0xdf
+#define EMU_CMD_GET_CAPS 0xe8
+#define EMU_CMD_GET_HW_VERSION 0xf0
+
+/* bits return from EMU_CMD_GET_CAPS */
+#define EMU_CAP_GET_HW_VERSION 1
+#define EMU_CAP_GET_MAX_BLOCK_SIZE 11
/* max speed 12MHz v5.0 jlink */
#define JLINK_MAX_SPEED 12000
/* CLI command handler functions */
static int jlink_handle_jlink_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int jlink_handle_jlink_hw_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
/* Queue command functions */
static void jlink_end_state(tap_state_t state);
.quit = jlink_quit
};
-static void jlink_execute_end_state(jtag_command_t *cmd)
-{
- DEBUG_JTAG_IO("end_state: %i", cmd->cmd.end_state->end_state);
-
- if (cmd->cmd.end_state->end_state != TAP_INVALID)
- jlink_end_state(cmd->cmd.end_state->end_state);
-}
-
static void jlink_execute_runtest(jtag_command_t *cmd)
{
DEBUG_JTAG_IO("runtest %i cycles, end in %i",
cmd->cmd.runtest->num_cycles,
cmd->cmd.runtest->end_state);
- if (cmd->cmd.runtest->end_state != TAP_INVALID)
- jlink_end_state(cmd->cmd.runtest->end_state);
+ jlink_end_state(cmd->cmd.runtest->end_state);
jlink_runtest(cmd->cmd.runtest->num_cycles);
}
{
DEBUG_JTAG_IO("statemove end in %i", cmd->cmd.statemove->end_state);
- if (cmd->cmd.statemove->end_state != TAP_INVALID)
- {
- jlink_end_state(cmd->cmd.statemove->end_state);
- }
+ jlink_end_state(cmd->cmd.statemove->end_state);
jlink_state_move();
}
DEBUG_JTAG_IO("scan end in %s", tap_state_name(cmd->cmd.scan->end_state));
- if (cmd->cmd.scan->end_state != TAP_INVALID)
- jlink_end_state(cmd->cmd.scan->end_state);
+ jlink_end_state(cmd->cmd.scan->end_state);
scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
DEBUG_JTAG_IO("scan input, length = %d", scan_size);
cmd->cmd.reset->trst, cmd->cmd.reset->srst);
jlink_tap_execute();
-
- if ( (cmd->cmd.reset->trst == 1) || ( cmd->cmd.reset->srst && (jtag_reset_config & RESET_SRST_PULLS_TRST) ) )
- {
- tap_set_state(TAP_RESET);
- }
-
jlink_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
jlink_tap_execute();
}
{
switch (cmd->type)
{
- case JTAG_END_STATE: jlink_execute_end_state(cmd); break;
case JTAG_RUNTEST: jlink_execute_runtest(cmd); break;
case JTAG_STATEMOVE: jlink_execute_statemove(cmd); break;
case JTAG_PATHMOVE: jlink_execute_pathmove(cmd); break;
static int jlink_register_commands(struct command_context_s *cmd_ctx)
{
- register_command(cmd_ctx, NULL, "jlink_info", jlink_handle_jlink_info_command, COMMAND_EXEC,
+
+ register_command(cmd_ctx, NULL, "jlink_info",
+ &jlink_handle_jlink_info_command, COMMAND_EXEC,
"query jlink info");
+ register_command(cmd_ctx, NULL, "jlink_hw_jtag",
+ &jlink_handle_jlink_hw_jtag_command, COMMAND_EXEC,
+ "set/get jlink hw jtag command version [2|3]");
return ERROR_OK;
}
static int jlink_init(void)
{
int check_cnt;
+ int i;
jlink_jtag_handle = jlink_usb_open();
return ERROR_JTAG_INIT_FAILED;
}
+ jlink_hw_jtag_version = 2;
check_cnt = 0;
while (check_cnt < 3)
{
jlink_tap_init();
jlink_speed(jtag_speed);
+ /* v5/6 jlink seems to have an issue if the first tap move
+ * is not divisible by 8, so we send a TLR on first power up */
+ for (i = 0; i < 8; i++) {
+ jlink_tap_append_step(1, 0);
+ }
+ jlink_tap_execute();
+
return ERROR_OK;
}
}
len = buf_get_u32(usb_in_buffer, 0, 16);
+ if (len > JLINK_IN_BUFFER_SIZE)
+ {
+ LOG_ERROR("J-Link command EMU_CMD_VERSION impossible return length 0x%0x", len);
+ len = JLINK_IN_BUFFER_SIZE;
+ }
+
result = jlink_usb_read(jlink_jtag_handle, len);
if (result != len)
{
jlink_caps = buf_get_u32(usb_in_buffer, 0, 32);
LOG_INFO("JLink caps 0x%x", jlink_caps);
+ if (jlink_caps & (1 << EMU_CAP_GET_HW_VERSION))
+ {
+ /* query hardware version */
+ jlink_simple_command(EMU_CMD_GET_HW_VERSION);
- /* query hardware maximum memory block */
- jlink_simple_command(EMU_CMD_GET_MAX_MEM_BLOCK);
+ result = jlink_usb_read(jlink_jtag_handle, 4);
+ if (4 != result)
+ {
+ LOG_ERROR("J-Link command EMU_CMD_GET_HW_VERSION failed (%d)\n", result);
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
- result = jlink_usb_read(jlink_jtag_handle, 4);
- if (4 != result)
- {
- LOG_ERROR("J-Link command EMU_CMD_GET_MAX_MEM_BLOCK failed (%d)\n", result);
- return ERROR_JTAG_DEVICE_ERROR;
+ u32 jlink_hw_version = buf_get_u32(usb_in_buffer, 0, 32);
+ u32 major_revision = (jlink_hw_version / 10000) % 100;
+ if (major_revision >= 5)
+ jlink_hw_jtag_version = 3;
+
+ LOG_INFO("JLink hw version %i", jlink_hw_version);
}
- jlink_max_size = buf_get_u32(usb_in_buffer, 0, 32);
- LOG_INFO("JLink max mem block %i", jlink_max_size);
+ if (jlink_caps & (1 << EMU_CAP_GET_MAX_BLOCK_SIZE))
+ {
+ /* query hardware maximum memory block */
+ jlink_simple_command(EMU_CMD_GET_MAX_MEM_BLOCK);
+ result = jlink_usb_read(jlink_jtag_handle, 4);
+ if (4 != result)
+ {
+ LOG_ERROR("J-Link command EMU_CMD_GET_MAX_MEM_BLOCK failed (%d)\n", result);
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
+
+ jlink_max_size = buf_get_u32(usb_in_buffer, 0, 32);
+ LOG_INFO("JLink max mem block %i", jlink_max_size);
+ }
return ERROR_OK;
}
return ERROR_OK;
}
+static int jlink_handle_jlink_hw_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ switch (argc) {
+ case 0:
+ command_print(cmd_ctx, "jlink hw jtag %i", jlink_hw_jtag_version);
+ break;
+ case 1: {
+ int request_version = atoi(args[0]);
+ switch (request_version) {
+ case 2: case 3:
+ jlink_hw_jtag_version = request_version;
+ break;
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ break;
+ }
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ return ERROR_OK;
+}
+
/***************************************************************************/
/* J-Link tap functions */
// number of full bytes (plus one if some would be left over)
byte_length = TAP_SCAN_BYTES(tap_length);
- usb_out_buffer[0] = EMU_CMD_HW_JTAG3;
+ bool use_jtag3 = jlink_hw_jtag_version >= 3;
+ usb_out_buffer[0] = use_jtag3 ? EMU_CMD_HW_JTAG3 : EMU_CMD_HW_JTAG2;
usb_out_buffer[1] = 0;
usb_out_buffer[2] = (tap_length >> 0) & 0xff;
usb_out_buffer[3] = (tap_length >> 8) & 0xff;
DEBUG_JTAG_IO("pending scan result, length = %d", length);
#ifdef _DEBUG_USB_COMMS_
- jlink_debug_buffer(buffer, byte_length);
+ jlink_debug_buffer(buffer, TAP_SCAN_BYTES(length));
#endif
if (jtag_read_buffer(buffer, command) != ERROR_OK)
*/
usb_set_altinterface(result->usb_handle, 0);
#endif
+ struct usb_interface *iface = dev->config->interface;
+ struct usb_interface_descriptor *desc = iface->altsetting;
+ for (int i = 0; i < desc->bNumEndpoints; i++)
+ {
+ u8 epnum = desc->endpoint[i].bEndpointAddress;
+ bool is_input = epnum & 0x80;
+ LOG_DEBUG("usb ep %s %02x", is_input ? "in" : "out", epnum);
+ if (is_input)
+ jlink_read_ep = epnum;
+ else
+ jlink_write_ep = epnum;
+ }
+
return result;
}
}
static int jlink_usb_message(jlink_jtag_t *jlink_jtag, int out_length, int in_length)
{
int result;
- int result2;
result = jlink_usb_write(jlink_jtag, out_length);
if (result != out_length)
return ERROR_JTAG_DEVICE_ERROR;
}
+ if (jlink_hw_jtag_version < 3)
+ return result;
+
+ int result2 = ERROR_OK;
if (result == in_length)
{
/* Must read the result from the EMU too */
return -1;
}
- result = usb_bulk_write_ex(jlink_jtag->usb_handle, JLINK_WRITE_ENDPOINT,
+ result = usb_bulk_write_ex(jlink_jtag->usb_handle, jlink_write_ep,
(char *)usb_out_buffer, out_length, JLINK_USB_TIMEOUT);
DEBUG_JTAG_IO("jlink_usb_write, out_length = %d, result = %d", out_length, result);
/* Read data from USB into in_buffer. */
static int jlink_usb_read(jlink_jtag_t *jlink_jtag, int expected_size)
{
- int result = usb_bulk_read_ex(jlink_jtag->usb_handle, JLINK_READ_ENDPOINT,
+ int result = usb_bulk_read_ex(jlink_jtag->usb_handle, jlink_read_ep,
(char *)usb_in_buffer, expected_size, JLINK_USB_TIMEOUT);
DEBUG_JTAG_IO("jlink_usb_read, result = %d", result);
/* Read the result from the previous EMU cmd into result_buffer. */
static int jlink_usb_read_emu_result(jlink_jtag_t *jlink_jtag)
{
- int result = usb_bulk_read_ex(jlink_jtag->usb_handle, JLINK_READ_ENDPOINT,
+ int result = usb_bulk_read_ex(jlink_jtag->usb_handle, jlink_read_ep,
(char *)usb_emu_result_buffer, 1 /* JLINK_EMU_RESULT_BUFFER_SIZE */,
JLINK_USB_TIMEOUT);
projects / fw / openocd / blobdiff