static void ftdi_execute_reset(struct jtag_command *cmd)
{
DEBUG_JTAG_IO("reset trst: %i srst %i",
cmd->cmd.reset->trst, cmd->cmd.reset->srst);
if (cmd->cmd.reset->trst == 1
|| (cmd->cmd.reset->srst
&& (jtag_get_reset_config() & RESET_SRST_PULLS_TRST)))
tap_set_state(TAP_RESET);
struct signal *trst = find_signal_by_name("nTRST");
if (trst && cmd->cmd.reset->trst == 1) {
ftdi_set_signal(trst, '0');
} else if (trst && cmd->cmd.reset->trst == 0) {
if (jtag_get_reset_config() & RESET_TRST_OPEN_DRAIN)
ftdi_set_signal(trst, 'z');
else
ftdi_set_signal(trst, '1');
}
struct signal *srst = find_signal_by_name("nSRST");
if (srst && cmd->cmd.reset->srst == 1) {
ftdi_set_signal(srst, '0');
} else if (srst && cmd->cmd.reset->srst == 0) {
if (jtag_get_reset_config() & RESET_SRST_PUSH_PULL)
ftdi_set_signal(srst, '1');
else
ftdi_set_signal(srst, 'z');
}
DEBUG_JTAG_IO("trst: %i, srst: %i",
cmd->cmd.reset->trst, cmd->cmd.reset->srst);
}
static int gpio_command_get(struct host_cmd_handler_args *args)
{
const struct ec_params_gpio_get_v1 *p_v1 = args->params;
struct ec_response_gpio_get_v1 *r_v1 = args->response;
int i, len;
if (args->version == 0) {
const struct ec_params_gpio_get *p = args->params;
struct ec_response_gpio_get *r = args->response;
i = find_signal_by_name(p->name);
if (i == GPIO_COUNT)
return EC_RES_ERROR;
r->val = gpio_get_level(i);
args->response_size = sizeof(struct ec_response_gpio_get);
return EC_RES_SUCCESS;
}
switch (p_v1->subcmd) {
case EC_GPIO_GET_BY_NAME:
i = find_signal_by_name(p_v1->get_value_by_name.name);
if (i == GPIO_COUNT)
return EC_RES_ERROR;
r_v1->get_value_by_name.val = gpio_get_level(i);
args->response_size = sizeof(r_v1->get_value_by_name);
break;
case EC_GPIO_GET_COUNT:
r_v1->get_count.val = GPIO_COUNT;
args->response_size = sizeof(r_v1->get_count);
break;
case EC_GPIO_GET_INFO:
if (p_v1->get_info.index >= GPIO_COUNT)
return EC_RES_ERROR;
i = p_v1->get_info.index;
len = strlen(gpio_get_name(i));
memcpy(r_v1->get_info.name, gpio_get_name(i), len+1);
r_v1->get_info.val = gpio_get_level(i);
r_v1->get_info.flags = gpio_get_default_flags(i);
args->response_size = sizeof(r_v1->get_info);
break;
default:
return EC_RES_INVALID_PARAM;
}
return EC_RES_SUCCESS;
}
static int signal_cmd_throw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
int sig = SIGINT;
if (argc == 1) {
if ((sig = find_signal_by_name(interp, Jim_String(argv[0]))) < 0) {
return JIM_ERR;
}
}
/* If the signal is ignored (blocked) ... */
if (siginfo[sig].status == SIGNAL_ACTION_IGNORE) {
sigsblocked |= sig_to_bit(sig);
return JIM_OK;
}
/* Just set the signal */
interp->sigmask |= sig_to_bit(sig);
/* Set the canonical name of the signal as the result */
Jim_SetResultString(interp, Jim_SignalId(sig), -1);
/* And simply say we caught the signal */
return JIM_SIGNAL;
}
static int SignalKillCmd(Jsi_Interp *interp, Jsi_Value *args, Jsi_Value *_this,
Jsi_Value **ret, Jsi_Func *funcPtr)
{
Jsi_Value *vpid = Jsi_ValueArrayIndex(interp, args, 0);
Jsi_Value *sv = Jsi_ValueArrayIndex(interp, args, 1);
Jsi_Number npid;
int rc, sigNum = SIGTERM;
if (Jsi_GetNumberFromValue(interp, vpid, &npid) != JSI_OK) {
Jsi_LogError("bad pid");
return JSI_ERROR;
}
if (sv) {
if (sv->vt == JSI_VT_NUMBER)
sigNum = (int)sv->d.num;
else {
char *ts = Jsi_ValueArrayIndexToStr(interp, args, 1, NULL);
if ((sigNum = find_signal_by_name(interp, ts)) < 0) {
Jsi_LogError("bad signal: %s", ts);
return JSI_ERROR;
}
}
}
if (sigNum < 0 || sigNum >= MAX_SIGNALS) {
Jsi_LogError("bad signal: %d", sigNum);
return JSI_ERROR;
}
rc = kill((int)npid, sigNum);
if (rc != 0) {
Jsi_LogError("kill failure");
return JSI_ERROR;
}
return JSI_OK;
}
static int command_gpio_get(int argc, char **argv)
{
int changed, v, i;
/* If a signal is specified, print only that one */
if (argc == 2) {
i = find_signal_by_name(argv[1]);
if (i == GPIO_COUNT)
return EC_ERROR_PARAM1;
v = gpio_get_level(i);
changed = last_val_changed(i, v);
ccprintf(" %d%c %s\n", v, (changed ? '*' : ' '),
gpio_get_name(i));
return EC_SUCCESS;
}
/* Otherwise print them all */
for (i = 0; i < GPIO_COUNT; i++) {
if (!gpio_is_implemented(i))
continue; /* Skip unsupported signals */
v = gpio_get_level(i);
changed = last_val_changed(i, v);
ccprintf(" %d%c %s\n", v, (changed ? '*' : ' '),
gpio_get_name(i));
/* Flush console to avoid truncating output */
cflush();
}
return EC_SUCCESS;
}
static int command_gpio_set(int argc, char **argv)
{
#ifdef CONFIG_CMD_GPIO_EXTENDED
int gpio;
int flags = 0;
int af = -1;
char *e;
if (argc < 3)
return EC_ERROR_PARAM_COUNT;
gpio = find_signal_by_name(argv[1]);
if (gpio == GPIO_COUNT)
return EC_ERROR_PARAM1;
if (strcasecmp(argv[2], "IN") == 0)
flags = GPIO_INPUT;
else if (strcasecmp(argv[2], "1") == 0)
flags = GPIO_OUT_HIGH;
else if (strcasecmp(argv[2], "0") == 0)
flags = GPIO_OUT_LOW;
else if (strcasecmp(argv[2], "A") == 0)
flags = GPIO_ANALOG;
else if (strcasecmp(argv[2], "ALT") == 0) {
if (argc >= 4) {
af = strtoi(argv[3], &e, 0);
if (*e || af < 0 || af > 5)
return EC_ERROR_PARAM2;
}
flags = GPIO_ALTERNATE;
} else
return EC_ERROR_PARAM2;
/* Update alt function if requested. */
if (af >= 0) {
const struct gpio_info *g = gpio_list + gpio;
gpio_set_alternate_function(g->port, g->mask, af);
}
/* Update GPIO flags. */
gpio_set_flags(gpio, flags);
#else
char *e;
int v;
if (argc < 3)
return EC_ERROR_PARAM_COUNT;
v = strtoi(argv[2], &e, 0);
if (*e)
return EC_ERROR_PARAM2;
if (set(argv[1], v) != EC_SUCCESS)
return EC_ERROR_PARAM1;
#endif
return EC_SUCCESS;
}
static int ftdi_execute_swd_seq(struct jtag_command *cmd)
{
struct signal *swdoe = find_signal_by_name("SWDOE");
int retval = 0;
DEBUG_JTAG_IO("SWD sending raw sequence, length %d bits",
cmd->cmd.swd_seq->num_bits);
retval |= ftdi_set_signal(swdoe, '1');
retval |= mpsse_clock_data_out(mpsse_ctx,
cmd->cmd.swd_seq->bits, 0,
cmd->cmd.swd_seq->num_bits,
SWD_MODE);
return (retval);
}
static int SignalCallbackCmd(Jsi_Interp *interp, Jsi_Value *args, Jsi_Value *_this,
Jsi_Value **ret, Jsi_Func *funcPtr)
{
int isNew;
Jsi_Event *ev;
uint id;
int sigNum;
Jsi_Value *fv = Jsi_ValueArrayIndex(interp, args, 0);
Jsi_Value *sv = Jsi_ValueArrayIndex(interp, args, 1);
if (!Jsi_ValueIsFunction(interp, fv)) {
Jsi_LogError("expected function");
return JSI_ERROR;
}
if (sv && sv->vt == JSI_VT_NUMBER)
sigNum = (int)sv->d.num;
else {
char *ts = Jsi_ValueArrayIndexToStr(interp, args, 1, NULL);
if ((sigNum = find_signal_by_name(interp, ts)) < 0) {
Jsi_LogError("expected signal");
return JSI_ERROR;
}
}
if (sigNum < 0 || sigNum >= MAX_SIGNALS) {
Jsi_LogError("unknown signal: %d", sigNum);
return JSI_ERROR;
}
while (1) {
id = interp->eventIdx++;
Jsi_HashEntry *hPtr = Jsi_HashEntryCreate(interp->eventTbl, (void*)id, &isNew);
if (!isNew)
continue;
ev = Jsi_Calloc(1, sizeof(*ev));
SIGINIT(ev,EVENT);
ev->id = id;
ev->funcVal = fv;
Jsi_IncrRefCount(interp, fv);
ev->hPtr = hPtr;
ev->sigNum = sigNum;
ev->evType = JSI_EVENT_SIGNAL;
Jsi_HashValueSet(hPtr, ev);
break;
}
jsi_SignalSet(interp, sigNum);
Jsi_ValueMakeNumber(interp, *ret, (Jsi_Number)id);
return JSI_OK;
}
static enum ec_error_list set(const char *name, int value)
{
enum gpio_signal signal = find_signal_by_name(name);
if (signal == GPIO_COUNT)
return EC_ERROR_INVAL;
if (!gpio_is_implemented(signal))
return EC_ERROR_INVAL;
if (!(gpio_get_default_flags(signal) & GPIO_OUTPUT))
return EC_ERROR_INVAL;
gpio_set_level(signal, value);
return EC_SUCCESS;
}
static int Jim_KillCmd(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
int sig;
long pid;
Jim_Obj *pidObj;
const char *signame;
if (argc != 2 && argc != 3) {
Jim_WrongNumArgs(interp, 1, argv, "?SIG|-0? pid");
return JIM_ERR;
}
if (argc == 2) {
sig = SIGTERM;
pidObj = argv[1];
}
else {
signame = Jim_String(argv[1]);
pidObj = argv[2];
/* Special 'kill -0 pid' to determine if a pid exists */
if (strcmp(signame, "-0") == 0 || strcmp(signame, "0") == 0) {
sig = 0;
}
else {
sig = find_signal_by_name(interp, signame);
if (sig < 0) {
return JIM_ERR;
}
}
}
if (Jim_GetLong(interp, pidObj, &pid) != JIM_OK) {
return JIM_ERR;
}
if (kill(pid, sig) == 0) {
return JIM_OK;
}
Jim_SetResultString(interp, "kill: Failed to deliver signal", -1);
return JIM_ERR;
}
static int ftdi_execute_queue(void)
{
/* blink, if the current layout has that feature */
struct signal *led = find_signal_by_name("LED");
if (led)
ftdi_set_signal(led, '1');
for (struct jtag_command *cmd = jtag_command_queue; cmd; cmd = cmd->next) {
/* fill the write buffer with the desired command */
ftdi_execute_command(cmd);
}
if (led)
ftdi_set_signal(led, '0');
int retval = mpsse_flush(mpsse_ctx);
if (retval != ERROR_OK)
LOG_ERROR("error while flushing MPSSE queue: %d", retval);
return retval;
}
static int signal_cmd_check(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
int clear = 0;
jim_wide mask = 0;
jim_wide blocked;
if (argc > 0 && Jim_CompareStringImmediate(interp, argv[0], "-clear")) {
clear++;
}
if (argc > clear) {
int i;
/* Signals specified */
for (i = clear; i < argc; i++) {
int sig = find_signal_by_name(interp, Jim_String(argv[i]));
if (sig < 0 || sig >= MAX_SIGNALS) {
return -1;
}
mask |= sig_to_bit(sig);
}
}
else {
/* No signals specified, so check/clear all */
mask = ~mask;
}
if ((sigsblocked & mask) == 0) {
/* No matching signals, so empty result and nothing to do */
return JIM_OK;
}
/* Be careful we don't have a race condition where signals are cleared but not returned */
blocked = sigsblocked & mask;
if (clear) {
sigsblocked &= ~blocked;
}
/* Set the result */
signal_set_sigmask_result(interp, blocked);
return JIM_OK;
}
static int command_gpio_get(int argc, char **argv)
{
int i;
/* If a signal is specified, print only that one */
if (argc == 2) {
i = find_signal_by_name(argv[1]);
if (i == GPIO_COUNT)
return EC_ERROR_PARAM1;
print_gpio_info(i);
return EC_SUCCESS;
}
/* Otherwise print them all */
for (i = 0; i < GPIO_COUNT; i++) {
if (!gpio_is_implemented(i))
continue; /* Skip unsupported signals */
print_gpio_info(i);
}
return EC_SUCCESS;
}
static int do_signal_cmd(Jim_Interp *interp, int action, int argc, Jim_Obj *const *argv)
{
struct sigaction sa;
int i;
if (argc == 0) {
Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
for (i = 1; i < MAX_SIGNALS; i++) {
if (siginfo[i].status == action) {
/* Add signal name to the list */
Jim_ListAppendElement(interp, Jim_GetResult(interp),
Jim_NewStringObj(interp, Jim_SignalId(i), -1));
}
}
return JIM_OK;
}
/* Catch all the signals we care about */
if (action != SIGNAL_ACTION_DEFAULT) {
sa.sa_flags = 0;
sigemptyset(&sa.sa_mask);
if (action == SIGNAL_ACTION_HANDLE) {
sa.sa_handler = signal_handler;
}
else {
sa.sa_handler = signal_ignorer;
}
}
/* Iterate through the provided signals */
for (i = 0; i < argc; i++) {
int sig = find_signal_by_name(interp, Jim_String(argv[i]));
if (sig < 0) {
return JIM_ERR;
}
if (action != siginfo[sig].status) {
/* Need to change the action for this signal */
switch (action) {
case SIGNAL_ACTION_HANDLE:
case SIGNAL_ACTION_IGNORE:
if (siginfo[sig].status == SIGNAL_ACTION_DEFAULT) {
if (!sa_old) {
/* Allocate the structure the first time through */
sa_old = Jim_Alloc(sizeof(*sa_old) * MAX_SIGNALS);
}
sigaction(sig, &sa, &sa_old[sig]);
}
else {
sigaction(sig, &sa, 0);
}
break;
case SIGNAL_ACTION_DEFAULT:
/* Restore old handler */
if (sa_old) {
sigaction(sig, &sa_old[sig], 0);
}
}
siginfo[sig].status = action;
}
}
return JIM_OK;
}
static int SignalSub(Jsi_Interp *interp, Jsi_Value *args, Jsi_Value *_this,
Jsi_Value **ret, Jsi_Func *funcPtr, int action)
{
struct sigaction sa;
int i, argc = Jsi_ValueGetLength(interp, args);
if (&interp->sigmask != sigloc) {
Jsi_LogWarn("not primary interp");
return JSI_OK;
}
if (argc == 0) {
Jsi_Obj *nobj = Jsi_ObjNew(interp);
int m;
Jsi_ValueMakeArrayObject(interp,*ret, nobj);
for (i = 0, m = 0; i < MAX_SIGNALS; i++) {
if (signal_handling[i] == action) {
/* Add signal name to the list */
Jsi_ObjArraySet(interp, nobj, Jsi_ValueNewStringKey(interp, Jsi_SignalName(i)), m++);
}
}
return JSI_OK;
}
/* Catch all the signals we care about */
if (action != SIGNAL_ACTION_DEFAULT) {
sa.sa_flags = 0;
sigemptyset(&sa.sa_mask);
if (action == SIGNAL_ACTION_HANDLE) {
sa.sa_handler = signal_handler;
}
else {
sa.sa_handler = signal_ignorer;
}
}
/* Iterate through the provided signals */
for (i = 0; i < argc; i++) {
char *sstr;
int sig = find_signal_by_name(interp, sstr=Jsi_ValueArrayIndexToStr(interp,args,i, NULL));
if (sig < 0) {
Jsi_LogError("unknown signal: %s", sstr);
return JSI_ERROR;
}
if (action != signal_handling[sig]) {
/* Need to change the action for this signal */
switch (action) {
case SIGNAL_ACTION_HANDLE:
case SIGNAL_ACTION_IGNORE:
if (signal_handling[sig] == SIGNAL_ACTION_DEFAULT) {
if (!sa_old) {
/* Allocate the structure the first time through */
sa_old = Jsi_Calloc(MAX_SIGNALS, sizeof(*sa_old));
}
sigaction(sig, &sa, &sa_old[sig]);
}
else {
sigaction(sig, &sa, 0);
}
break;
case SIGNAL_ACTION_DEFAULT:
/* Restore old handler */
if (sa_old) {
sigaction(sig, &sa_old[sig], 0);
}
}
signal_handling[sig] = action;
}
}
return JSI_OK;
}