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- removed obsolete cmd JLINK_TAP_SEQUENCE_COMMAND, use EMU_CMD_HW_JTAG instead

git-svn-id: svn://svn.berlios.de/openocd/trunk@677 b42882b7-edfa-0310-969c-e2dbd0fdcd60
tags/v0.1.0
mifi 14 years ago
parent
commit
575e3379f5
1 changed files with 48 additions and 13 deletions
  1. +48
    -13
      src/jtag/jlink.c

+ 48
- 13
src/jtag/jlink.c View File

@@ -51,19 +51,17 @@

#define JLINK_USB_TIMEOUT 100

#define JLINK_IN_BUFFER_SIZE 2064
#define JLINK_OUT_BUFFER_SIZE 2064
#define JLINK_IN_BUFFER_SIZE 2064
#define JLINK_OUT_BUFFER_SIZE 2064
#define JLINK_EMU_RESULT_BUFFER_SIZE 64


/* Global USB buffers */
static u8 usb_in_buffer[JLINK_IN_BUFFER_SIZE];
static u8 usb_out_buffer[JLINK_OUT_BUFFER_SIZE];
static u8 usb_emu_result_buffer[JLINK_EMU_RESULT_BUFFER_SIZE];

/* Constants for JLink command */

/* The JLINK_TAP_SEQUENCE_COMMAND is obsolete
* and we should use EMU_CMD_HW_JTAG instead */
#define JLINK_TAP_SEQUENCE_COMMAND 0xcd

#define EMU_CMD_VERSION 0x01
#define EMU_CMD_SET_SPEED 0x05
#define EMU_CMD_GET_STATE 0x07
@@ -115,6 +113,7 @@ void jlink_usb_close(jlink_jtag_t *jlink_jtag);
int jlink_usb_message(jlink_jtag_t *jlink_jtag, int out_length, int in_length);
int jlink_usb_write(jlink_jtag_t *jlink_jtag, int out_length);
int jlink_usb_read(jlink_jtag_t *jlink_jtag);
int jlink_usb_read_result(jlink_jtag_t *jlink_jtag);

/* helper functions */
int jlink_get_version_info(void);
@@ -665,11 +664,12 @@ int jlink_tap_execute()
byte_length = tap_length / 8;
usb_out_buffer[0] = JLINK_TAP_SEQUENCE_COMMAND;
usb_out_buffer[1] = (tap_length >> 0) & 0xff;
usb_out_buffer[2] = (tap_length >> 8) & 0xff;
usb_out_buffer[0] = EMU_CMD_HW_JTAG;
usb_out_buffer[1] = 0;
usb_out_buffer[2] = (tap_length >> 0) & 0xff;
usb_out_buffer[3] = (tap_length >> 8) & 0xff;
tms_offset = 3;
tms_offset = 4;
for (i = 0; i < byte_length; i++)
{
usb_out_buffer[tms_offset + i] = tms_buffer[i];
@@ -681,7 +681,7 @@ int jlink_tap_execute()
usb_out_buffer[tdi_offset + i] = tdi_buffer[i];
}
result = jlink_usb_message(jlink_jtag_handle, 3 + 2 * byte_length, byte_length);
result = jlink_usb_message(jlink_jtag_handle, 4 + 2 * byte_length, byte_length);
if (result == byte_length)
{
@@ -783,6 +783,7 @@ void jlink_usb_close(jlink_jtag_t *jlink_jtag)
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)
@@ -790,7 +791,26 @@ int jlink_usb_message(jlink_jtag_t *jlink_jtag, int out_length, int in_length)
result = jlink_usb_read(jlink_jtag);
if (result == in_length)
{
return result;
/* Must read the result from the EMU too */
result2 = jlink_usb_read_result(jlink_jtag);
if (1 == result2)
{
/* Check the result itself */
if (0 == usb_emu_result_buffer[0])
{
return result;
}
else
{
LOG_ERROR("jlink_usb_read_result len (requested=0, result=%d)", usb_emu_result_buffer[0]);
return -1;
}
}
else
{
LOG_ERROR("jlink_usb_read_result len (requested=1, result=%d)", result2);
return -1;
}
}
else
{
@@ -841,6 +861,21 @@ int jlink_usb_read(jlink_jtag_t *jlink_jtag)
return result;
}

/* Read the result from the previous EMU cmd into result_buffer. */
int jlink_usb_read_result(jlink_jtag_t *jlink_jtag)
{
int result = usb_bulk_read(jlink_jtag->usb_handle, JLINK_READ_ENDPOINT, \
usb_emu_result_buffer, JLINK_EMU_RESULT_BUFFER_SIZE, JLINK_USB_TIMEOUT);

DEBUG_JTAG_IO("jlink_usb_read_result, result = %d", result);
#ifdef _DEBUG_USB_COMMS_
jlink_debug_buffer(usb_emu_result_buffer, result);
#endif
return result;
}


#ifdef _DEBUG_USB_COMMS_
#define BYTES_PER_LINE 16



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