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adding the code to py_pwm.c to get the error data out of c_pwm.c. general code cleanup. this should close #56 as the softpwm code had the error string support already in it

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This commit is contained in:
Robert Wolterman
2017-01-28 19:04:31 +00:00
parent 05b936ca1d
commit cb4e272a35
3 changed files with 38 additions and 34 deletions
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1
source/py_gpio.c
View File

@ -127,7 +127,6 @@ static PyObject *py_setup_channel(PyObject *self, PyObject *args, PyObject *kwar
init_module();
}
if (direction != INPUT && direction != OUTPUT)
{
PyErr_SetString(PyExc_ValueError, "An invalid direction was passed to setup()");

56
source/py_pwm.c
View File

@ -73,14 +73,12 @@ static PyObject *py_start_channel(PyObject *self, PyObject *args, PyObject *kwar
return NULL;
}
if (duty_cycle < 0.0 || duty_cycle > 100.0)
{
if (duty_cycle < 0.0 || duty_cycle > 100.0) {
PyErr_SetString(PyExc_ValueError, "duty_cycle must have a value from 0.0 to 100.0");
return NULL;
}
if (frequency <= 0.0)
{
if (frequency <= 0.0) {
PyErr_SetString(PyExc_ValueError, "frequency must be greater than 0.0");
return NULL;
}
@ -90,8 +88,12 @@ static PyObject *py_start_channel(PyObject *self, PyObject *args, PyObject *kwar
return NULL;
}
if (!pwm_start(key, duty_cycle, frequency, polarity))
if (pwm_start(key, duty_cycle, frequency, polarity) < 0) {
char err[2000];
snprintf(err, sizeof(err), "Unable to start PWM: %s (%s)", channel, get_error_msg());
PyErr_SetString(PyExc_ValueError, err);
return NULL;
}
Py_RETURN_NONE;
}
@ -112,7 +114,12 @@ static PyObject *py_stop_channel(PyObject *self, PyObject *args, PyObject *kwarg
return NULL;
}
pwm_disable(key);
if (pwm_disable(key) < 0) {
char err[2000];
snprintf(err, sizeof(err), "PWM: %s issue: (%s)", channel, get_error_msg());
PyErr_SetString(PyExc_ValueError, err);
return NULL;
}
Py_RETURN_NONE;
}
@ -130,8 +137,7 @@ static PyObject *py_set_duty_cycle(PyObject *self, PyObject *args, PyObject *kwa
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|f", kwlist, &channel, &duty_cycle))
return NULL;
if (duty_cycle < 0.0 || duty_cycle > 100.0)
{
if (duty_cycle < 0.0 || duty_cycle > 100.0) {
PyErr_SetString(PyExc_ValueError, "duty_cycle must have a value from 0.0 to 100.0");
return NULL;
}
@ -142,7 +148,9 @@ static PyObject *py_set_duty_cycle(PyObject *self, PyObject *args, PyObject *kwa
}
if (pwm_set_duty_cycle(key, duty_cycle) == -1) {
PyErr_SetString(PyExc_RuntimeError, "You must start() the PWM channel first");
char err[2000];
snprintf(err, sizeof(err), "PWM: %s issue: (%s)", channel, get_error_msg());
PyErr_SetString(PyExc_ValueError, err);
return NULL;
}
@ -170,20 +178,20 @@ static PyObject *py_set_pulse_width_ns(PyObject *self, PyObject *args, PyObject
// Get the period out of the data struct
int rtn = pwm_get_period_ns(key, &period_ns);
if (rtn == -1)
{
if (rtn == -1) {
PyErr_SetString(PyExc_ValueError, "period unable to be obtained");
return NULL;
}
if (pulse_width_ns < 0.0 || pulse_width_ns > period_ns)
{
if (pulse_width_ns < 0.0 || pulse_width_ns > period_ns) {
PyErr_SetString(PyExc_ValueError, "pulse width must have a value from 0 to period");
return NULL;
}
if (pwm_set_pulse_width_ns(key, pulse_width_ns) == -1) {
PyErr_SetString(PyExc_RuntimeError, "You must start() the PWM channel first");
if (pwm_set_pulse_width_ns(key, pulse_width_ns) < 0) {
char err[2000];
snprintf(err, sizeof(err), "PWM: %s issue: (%s)", channel, get_error_msg());
PyErr_SetString(PyExc_ValueError, err);
return NULL;
}
@ -203,8 +211,7 @@ static PyObject *py_set_frequency(PyObject *self, PyObject *args, PyObject *kwar
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|f", kwlist, &channel, &frequency))
return NULL;
if (frequency <= 0.0)
{
if (frequency <= 0.0) {
PyErr_SetString(PyExc_ValueError, "frequency must be greater than 0.0");
return NULL;
}
@ -214,8 +221,10 @@ static PyObject *py_set_frequency(PyObject *self, PyObject *args, PyObject *kwar
return NULL;
}
if (pwm_set_frequency(key, frequency) == -1) {
PyErr_SetString(PyExc_RuntimeError, "You must start() the PWM channel first");
if (pwm_set_frequency(key, frequency) < 0) {
char err[2000];
snprintf(err, sizeof(err), "PWM: %s issue: (%s)", channel, get_error_msg());
PyErr_SetString(PyExc_ValueError, err);
return NULL;
}
@ -235,8 +244,7 @@ static PyObject *py_set_period_ns(PyObject *self, PyObject *args, PyObject *kwar
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|k", kwlist, &channel, &period_ns))
return NULL;
if (period_ns <= 0)
{
if (period_ns <= 0) {
PyErr_SetString(PyExc_ValueError, "period must be greater than 0ns");
return NULL;
}
@ -246,8 +254,10 @@ static PyObject *py_set_period_ns(PyObject *self, PyObject *args, PyObject *kwar
return NULL;
}
if (pwm_set_period_ns(key, period_ns) == -1) {
PyErr_SetString(PyExc_RuntimeError, "You must start() the PWM channel first");
if (pwm_set_period_ns(key, period_ns) < 0) {
char err[2000];
snprintf(err, sizeof(err), "PWM: %s issue: (%s)", channel, get_error_msg());
PyErr_SetString(PyExc_ValueError, err);
return NULL;
}

15
source/py_softpwm.c
View File

@ -83,14 +83,12 @@ static PyObject *py_start_channel(PyObject *self, PyObject *args, PyObject *kwar
return NULL;
}
if (duty_cycle < 0.0 || duty_cycle > 100.0)
{
if (duty_cycle < 0.0 || duty_cycle > 100.0) {
PyErr_SetString(PyExc_ValueError, "duty_cycle must have a value from 0.0 to 100.0");
return NULL;
}
if (frequency <= 0.0)
{
if (frequency <= 0.0) {
PyErr_SetString(PyExc_ValueError, "frequency must be greater than 0.0");
return NULL;
}
@ -100,8 +98,7 @@ static PyObject *py_start_channel(PyObject *self, PyObject *args, PyObject *kwar
return NULL;
}
if (softpwm_start(key, duty_cycle, frequency, polarity) < 0)
{
if (softpwm_start(key, duty_cycle, frequency, polarity) < 0) {
printf("softpwm_start failed");
char err[2000];
snprintf(err, sizeof(err), "Error starting softpwm on pin %s (%s)", key, get_error_msg());
@ -146,8 +143,7 @@ static PyObject *py_set_duty_cycle(PyObject *self, PyObject *args, PyObject *kwa
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|f", kwlist, &channel, &duty_cycle))
return NULL;
if (duty_cycle < 0.0 || duty_cycle > 100.0)
{
if (duty_cycle < 0.0 || duty_cycle > 100.0) {
PyErr_SetString(PyExc_ValueError, "duty_cycle must have a value from 0.0 to 100.0");
return NULL;
}
@ -178,8 +174,7 @@ static PyObject *py_set_frequency(PyObject *self, PyObject *args, PyObject *kwar
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|f", kwlist, &channel, &frequency))
return NULL;
if ((frequency <= 0.0) || (frequency > 10000.0))
{
if ((frequency <= 0.0) || (frequency > 10000.0)) {
PyErr_SetString(PyExc_ValueError, "frequency must be greater than 0.0 and less than 10000.0");
return NULL;
}