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Change tap_state naming to be consistent with SVF documentation.

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Courtesy of Dick Hollenbeck <dick@softplc.com>


git-svn-id: svn://svn.berlios.de/openocd/trunk@1232 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
kc8apf
2008-12-13 06:25:50 +00:00
parent 6c27550f6e
commit c45de8073d
30 changed files with 1463 additions and 1468 deletions
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src/jtag/jlink.c
+111 -111
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@@ -146,92 +146,92 @@ int jlink_execute_queue(void)
int scan_size;
enum scan_type type;
u8 *buffer;
while (cmd != NULL)
{
switch (cmd->type)
{
case JTAG_END_STATE:
DEBUG_JTAG_IO("end_state: %i", cmd->cmd.end_state->end_state);
if (cmd->cmd.end_state->end_state != -1)
{
jlink_end_state(cmd->cmd.end_state->end_state);
}
break;
case JTAG_RUNTEST:
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 != -1)
{
jlink_end_state(cmd->cmd.runtest->end_state);
}
jlink_runtest(cmd->cmd.runtest->num_cycles);
break;
case JTAG_STATEMOVE:
DEBUG_JTAG_IO("statemove end in %i", cmd->cmd.statemove->end_state);
if (cmd->cmd.statemove->end_state != -1)
{
jlink_end_state(cmd->cmd.statemove->end_state);
}
jlink_state_move();
break;
case JTAG_PATHMOVE:
DEBUG_JTAG_IO("pathmove: %i states, end in %i", \
cmd->cmd.pathmove->num_states, \
cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
jlink_path_move(cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path);
break;
case JTAG_SCAN:
DEBUG_JTAG_IO("scan end in %i", cmd->cmd.scan->end_state);
if (cmd->cmd.scan->end_state != -1)
{
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);
#ifdef _DEBUG_USB_COMMS_
jlink_debug_buffer(buffer, (scan_size + 7) / 8);
#endif
type = jtag_scan_type(cmd->cmd.scan);
jlink_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size, cmd->cmd.scan);
break;
case JTAG_RESET:
DEBUG_JTAG_IO("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
jlink_tap_execute();
if (cmd->cmd.reset->trst == 1)
{
cur_state = TAP_TLR;
cur_state = TAP_RESET;
}
jlink_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
break;
case JTAG_SLEEP:
DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
jlink_tap_execute();
jtag_sleep(cmd->cmd.sleep->us);
break;
default:
LOG_ERROR("BUG: unknown JTAG command type encountered");
exit(-1);
}
cmd = cmd->next;
}
return jlink_tap_execute();
}
@@ -239,19 +239,19 @@ int jlink_execute_queue(void)
int jlink_speed(int speed)
{
int result;
if (speed <= JLINK_MAX_SPEED)
{
/* check for RTCK setting */
if (speed == 0)
speed = -1;
usb_out_buffer[0] = EMU_CMD_SET_SPEED;
usb_out_buffer[1] = (speed >> 0) & 0xff;
usb_out_buffer[2] = (speed >> 8) & 0xff;
result = jlink_usb_write(jlink_jtag_handle, 3);
if (result == 3)
{
return ERROR_OK;
@@ -266,14 +266,14 @@ int jlink_speed(int speed)
{
LOG_INFO("Requested speed %dkHz exceeds maximum of %dkHz, ignored", speed, JLINK_MAX_SPEED);
}
return ERROR_OK;
}
int jlink_khz(int khz, int *jtag_speed)
{
*jtag_speed = khz;
return ERROR_OK;
}
@@ -286,16 +286,16 @@ int jlink_register_commands(struct command_context_s *cmd_ctx)
int jlink_init(void)
{
int check_cnt;
int check_cnt;
jlink_jtag_handle = jlink_usb_open();
if (jlink_jtag_handle == 0)
{
LOG_ERROR("Cannot find jlink Interface! Please check connection and permissions.");
return ERROR_JTAG_INIT_FAILED;
}
check_cnt = 0;
while (check_cnt < 3)
{
@@ -305,7 +305,7 @@ int jlink_init(void)
jlink_get_status();
break;
}
check_cnt++;
}
@@ -313,12 +313,12 @@ int jlink_init(void)
{
LOG_INFO("J-Link initial read failed, don't worry");
}
LOG_INFO("J-Link JTAG Interface ready");
jlink_reset(0, 0);
jlink_tap_init();
return ERROR_OK;
}
@@ -350,20 +350,20 @@ void jlink_state_move(void)
int i;
int tms = 0;
u8 tms_scan = TAP_MOVE(cur_state, end_state);
for (i = 0; i < 7; i++)
{
tms = (tms_scan >> i) & 1;
jlink_tap_append_step(tms, 0);
}
cur_state = end_state;
}
void jlink_path_move(int num_states, enum tap_state *path)
{
int i;
for (i = 0; i < num_states; i++)
{
if (path[i] == tap_transitions[cur_state].low)
@@ -379,32 +379,32 @@ void jlink_path_move(int num_states, enum tap_state *path)
LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[i]]);
exit(-1);
}
cur_state = path[i];
}
end_state = cur_state;
}
void jlink_runtest(int num_cycles)
{
int i;
enum tap_state saved_end_state = end_state;
/* only do a state_move when we're not already in RTI */
if (cur_state != TAP_RTI)
if (cur_state != TAP_IDLE)
{
jlink_end_state(TAP_RTI);
jlink_end_state(TAP_IDLE);
jlink_state_move();
}
/* execute num_cycles */
for (i = 0; i < num_cycles; i++)
{
jlink_tap_append_step(0, 0);
}
/* finish in end_state */
jlink_end_state(saved_end_state);
if (cur_state != end_state)
@@ -416,25 +416,25 @@ void jlink_runtest(int num_cycles)
void jlink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command)
{
enum tap_state saved_end_state;
jlink_tap_ensure_space(1, scan_size + 8);
saved_end_state = end_state;
/* Move to appropriate scan state */
jlink_end_state(ir_scan ? TAP_SI : TAP_SD);
jlink_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
jlink_state_move();
jlink_end_state(saved_end_state);
/* Scan */
jlink_tap_append_scan(scan_size, buffer, command);
/* We are in Exit1, go to Pause */
jlink_tap_append_step(0, 0);
cur_state = ir_scan ? TAP_PI : TAP_PD;
cur_state = ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE;
if (cur_state != end_state)
{
jlink_state_move();
@@ -444,7 +444,7 @@ void jlink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, sca
void jlink_reset(int trst, int srst)
{
LOG_DEBUG("trst: %i, srst: %i", trst, srst);
/* Signals are active low */
if (srst == 0)
{
@@ -454,7 +454,7 @@ void jlink_reset(int trst, int srst)
{
jlink_simple_command(EMU_CMD_HW_RESET0);
}
if (trst == 0)
{
jlink_simple_command(EMU_CMD_HW_TRST1);
@@ -468,12 +468,12 @@ void jlink_reset(int trst, int srst)
void jlink_simple_command(u8 command)
{
int result;
DEBUG_JTAG_IO("0x%02x", command);
usb_out_buffer[0] = command;
result = jlink_usb_write(jlink_jtag_handle, 1);
if (result != 1)
{
LOG_ERROR("J-Link command 0x%02x failed (%d)", command, result);
@@ -483,10 +483,10 @@ void jlink_simple_command(u8 command)
int jlink_get_status(void)
{
int result;
jlink_simple_command(EMU_CMD_GET_STATE);
result = jlink_usb_read(jlink_jtag_handle);
if (result == 8)
{
int vref = usb_in_buffer[0] + (usb_in_buffer[1] << 8);
@@ -494,7 +494,7 @@ int jlink_get_status(void)
vref / 1000, vref % 1000, \
usb_in_buffer[2], usb_in_buffer[3], usb_in_buffer[4], \
usb_in_buffer[5], usb_in_buffer[6], usb_in_buffer[7]);
if (vref < 1500)
{
LOG_ERROR("Vref too low. Check Target Power\n");
@@ -504,7 +504,7 @@ int jlink_get_status(void)
{
LOG_ERROR("J-Link command EMU_CMD_GET_STATE failed (%d)\n", result);
}
return ERROR_OK;
}
@@ -512,16 +512,16 @@ int jlink_get_version_info(void)
{
int result;
int len = 0;
/* query hardware version */
jlink_simple_command(EMU_CMD_VERSION);
result = jlink_usb_read(jlink_jtag_handle);
if (result == 2)
{
len = buf_get_u32(usb_in_buffer, 0, 16);
result = jlink_usb_read(jlink_jtag_handle);
if (result == len)
{
usb_in_buffer[result] = 0;
@@ -529,7 +529,7 @@ int jlink_get_version_info(void)
return ERROR_OK;
}
}
LOG_ERROR("J-Link command EMU_CMD_VERSION failed (%d)\n", result);
return ERROR_JTAG_DEVICE_ERROR;
}
@@ -541,7 +541,7 @@ int jlink_handle_jlink_info_command(struct command_context_s *cmd_ctx, char *cmd
/* attempt to get status */
jlink_get_status();
}
return ERROR_OK;
}
@@ -581,7 +581,7 @@ void jlink_tap_ensure_space(int scans, int bits)
{
int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
int available_bits = JLINK_TAP_BUFFER_SIZE * 8 - tap_length;
if (scans > available_scans || bits > available_bits)
{
jlink_tap_execute();
@@ -592,12 +592,12 @@ void jlink_tap_append_step(int tms, int tdi)
{
last_tms = tms;
int index = tap_length / 8;
if (index < JLINK_TAP_BUFFER_SIZE)
{
int bit_index = tap_length % 8;
u8 bit = 1 << bit_index;
if (tms)
{
tms_buffer[index] |= bit;
@@ -606,7 +606,7 @@ void jlink_tap_append_step(int tms, int tdi)
{
tms_buffer[index] &= ~bit;
}
if (tdi)
{
tdi_buffer[index] |= bit;
@@ -615,7 +615,7 @@ void jlink_tap_append_step(int tms, int tdi)
{
tdi_buffer[index] &= ~bit;
}
tap_length++;
}
else
@@ -628,12 +628,12 @@ void jlink_tap_append_scan(int length, u8 *buffer, scan_command_t *command)
{
pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length];
int i;
pending_scan_result->first = tap_length;
pending_scan_result->length = length;
pending_scan_result->command = command;
pending_scan_result->buffer = buffer;
for (i = 0; i < length; i++)
{
jlink_tap_append_step((i < length-1 ? 0 : 1), (buffer[i/8] >> (i%8)) & 1);
@@ -650,7 +650,7 @@ int jlink_tap_execute(void)
int tdi_offset;
int i;
int result;
if (tap_length > 0)
{
/* Pad last byte so that tap_length is divisible by 8 */
@@ -660,35 +660,35 @@ int jlink_tap_execute(void)
* analogous to free-running JTAG interfaces. */
jlink_tap_append_step(last_tms, 0);
}
byte_length = tap_length / 8;
usb_out_buffer[0] = EMU_CMD_HW_JTAG3;
usb_out_buffer[1] = 0;
usb_out_buffer[2] = (tap_length >> 0) & 0xff;
usb_out_buffer[3] = (tap_length >> 8) & 0xff;
tms_offset = 4;
for (i = 0; i < byte_length; i++)
{
usb_out_buffer[tms_offset + i] = tms_buffer[i];
}
tdi_offset = tms_offset + byte_length;
for (i = 0; i < byte_length; i++)
{
usb_out_buffer[tdi_offset + i] = tdi_buffer[i];
}
result = jlink_usb_message(jlink_jtag_handle, 4 + 2 * byte_length, byte_length);
if (result == byte_length)
{
for (i = 0; i < byte_length; i++)
{
tdo_buffer[i] = usb_in_buffer[i];
}
for (i = 0; i < pending_scan_results_length; i++)
{
pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[i];
@@ -696,22 +696,22 @@ int jlink_tap_execute(void)
int length = pending_scan_result->length;
int first = pending_scan_result->first;
scan_command_t *command = pending_scan_result->command;
/* Copy to buffer */
buf_set_buf(tdo_buffer, first, buffer, 0, length);
DEBUG_JTAG_IO("pending scan result, length = %d", length);
#ifdef _DEBUG_USB_COMMS_
jlink_debug_buffer(buffer, byte_length);
#endif
if (jtag_read_buffer(buffer, command) != ERROR_OK)
{
jlink_tap_init();
return ERROR_JTAG_QUEUE_FAILED;
}
if (pending_scan_result->buffer != NULL)
{
free(pending_scan_result->buffer);
@@ -723,10 +723,10 @@ int jlink_tap_execute(void)
LOG_ERROR("jlink_tap_execute, wrong result %d, expected %d", result, byte_length);
return ERROR_JTAG_QUEUE_FAILED;
}
jlink_tap_init();
}
return ERROR_OK;
}
@@ -738,19 +738,19 @@ jlink_jtag_t* jlink_usb_open()
struct usb_bus *busses;
struct usb_bus *bus;
struct usb_device *dev;
jlink_jtag_t *result;
result = (jlink_jtag_t*) malloc(sizeof(jlink_jtag_t));
usb_init();
usb_find_busses();
usb_find_devices();
busses = usb_get_busses();
/* find jlink_jtag device in usb bus */
for (bus = busses; bus; bus = bus->next)
{
for (dev = bus->devices; dev; dev = dev->next)
@@ -758,23 +758,23 @@ jlink_jtag_t* jlink_usb_open()
if ((dev->descriptor.idVendor == VID) && (dev->descriptor.idProduct == PID))
{
result->usb_handle = usb_open(dev);
/* usb_set_configuration required under win32 */
usb_set_configuration(result->usb_handle, dev->config[0].bConfigurationValue);
usb_claim_interface(result->usb_handle, 0);
#if 0
/*
/*
* This makes problems under Mac OS X. And is not needed
* under Windows. Hopefully this will not break a linux build
*/
usb_set_altinterface(result->usb_handle, 0);
#endif
#endif
return result;
}
}
}
free(result);
return NULL;
}
@@ -790,7 +790,7 @@ 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)
{
@@ -811,7 +811,7 @@ int jlink_usb_message(jlink_jtag_t *jlink_jtag, int out_length, int in_length)
else
{
LOG_ERROR("jlink_usb_read_emu_result (requested=0, result=%d)", usb_emu_result_buffer[0]);
return -1;
return -1;
}
}
else
@@ -830,7 +830,7 @@ int jlink_usb_message(jlink_jtag_t *jlink_jtag, int out_length, int in_length)
else
{
LOG_ERROR("jlink_usb_read_emu_result (requested=0, result=%d)", usb_in_buffer[result]);
return -1;
return -1;
}
}
}
@@ -851,18 +851,18 @@ 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 result;
if (out_length > JLINK_OUT_BUFFER_SIZE)
{
LOG_ERROR("jlink_jtag_write illegal out_length=%d (max=%d)", out_length, JLINK_OUT_BUFFER_SIZE);
return -1;
}
result = usb_bulk_write(jlink_jtag->usb_handle, JLINK_WRITE_ENDPOINT, \
usb_out_buffer, out_length, JLINK_USB_TIMEOUT);
DEBUG_JTAG_IO("jlink_usb_write, out_length = %d, result = %d", out_length, result);
#ifdef _DEBUG_USB_COMMS_
jlink_debug_buffer(usb_out_buffer, out_length);
#endif
@@ -876,7 +876,7 @@ int jlink_usb_read(jlink_jtag_t *jlink_jtag)
usb_in_buffer, JLINK_IN_BUFFER_SIZE, JLINK_USB_TIMEOUT);
DEBUG_JTAG_IO("jlink_usb_read, result = %d", result);
#ifdef _DEBUG_USB_COMMS_
jlink_debug_buffer(usb_in_buffer, result);
#endif
@@ -890,7 +890,7 @@ int jlink_usb_read_emu_result(jlink_jtag_t *jlink_jtag)
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
@@ -906,7 +906,7 @@ void jlink_debug_buffer(u8 *buffer, int length)
char s[4];
int i;
int j;
for (i = 0; i < length; i += BYTES_PER_LINE)
{
snprintf(line, 5, "%04x", i);