static int
SpiDev_set_loop(SpiDevObject *self, PyObject *val, void *closure)
{
uint8_t tmp;
if (val == NULL) {
PyErr_SetString(PyExc_TypeError,
"Cannot delete attribute");
return -1;
}
else if (!PyBool_Check(val)) {
PyErr_SetString(PyExc_TypeError,
"The loop attribute must be boolean");
return -1;
}
if (val == Py_True)
tmp = self->mode | SPI_LOOP;
else
tmp = self->mode & ~SPI_LOOP;
__spidev_set_mode(self->fd, tmp);
self->mode = tmp;
return 0;
}
static int
SpiDev_set_mode(SpiDevObject *self, PyObject *val, void *closure)
{
uint8_t mode, tmp;
if (val == NULL) {
PyErr_SetString(PyExc_TypeError,
"Cannot delete attribute");
return -1;
}
else if (!PyInt_Check(val)) {
PyErr_SetString(PyExc_TypeError,
"The mode attribute must be an integer");
return -1;
}
mode = PyInt_AsLong(val);
if ( mode > 3 ) {
PyErr_SetString(PyExc_TypeError,
"The mode attribute must be an integer"
"between 0 and 3.");
return -1;
}
// clean and set CPHA and CPOL bits
tmp = ( self->mode & ~(SPI_CPHA | SPI_CPOL) ) | mode ;
__spidev_set_mode(self->fd, tmp);
self->mode = tmp;
return 0;
}
