Others/CHIP_IO
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Adding protection for to the GPIO to only allow edge detection and call back on the XIO pins, clean up of the PWM, updated test code

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This commit is contained in:
Robert Wolterman
2016-04-02 19:48:57 -05:00
parent cea44c287d
commit c2ab013a5d
3 changed files with 84 additions and 22 deletions
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24
source/py_gpio.c
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@ -268,6 +268,12 @@ static PyObject *py_add_event_callback(PyObject *self, PyObject *args, PyObject
if (get_gpio_number(channel, &gpio))
return NULL;
// check to ensure gpio is on the expanded pins as those are the only ones that allow for edge settings
if (gpio < 408) {
PyErr_SetString(PyExc_RuntimeError, "Callbacks currently available on XIO-P0 to XIO-P7 only");
return NULL;
}
// check channel is set up as an input
if (!module_setup || gpio_direction[gpio] != INPUT)
{
@ -309,6 +315,12 @@ static PyObject *py_add_event_detect(PyObject *self, PyObject *args, PyObject *k
if (get_gpio_number(channel, &gpio))
return NULL;
// check to ensure gpio is on the expanded pins as those are the only ones that allow for edge settings
if (gpio < 408) {
PyErr_SetString(PyExc_RuntimeError, "Edge Detection currently available on XIO-P0 to XIO-P7 only");
return NULL;
}
// check channel is set up as an input
if (!module_setup || gpio_direction[gpio] != INPUT)
{
@ -357,6 +369,12 @@ static PyObject *py_remove_event_detect(PyObject *self, PyObject *args)
if (get_gpio_number(channel, &gpio))
return NULL;
// check to ensure gpio is on the expanded pins as those are the only ones that allow for edge settings
if (gpio < 408) {
PyErr_SetString(PyExc_RuntimeError, "Edge Detection currently available on XIO-P0 to XIO-P7 only");
return NULL;
}
// remove all python callbacks for gpio
while (cb != NULL)
{
@ -413,6 +431,12 @@ static PyObject *py_wait_for_edge(PyObject *self, PyObject *args)
if (get_gpio_number(channel, &gpio))
return NULL;
// check to ensure gpio is on the expanded pins as those are the only ones that allow for edge settings
if (gpio < 408) {
PyErr_SetString(PyExc_RuntimeError, "Edge Detection currently available on XIO-P0 to XIO-P7 only");
return NULL;
}
// check channel is setup as an input
if (!module_setup || gpio_direction[gpio] != INPUT)
{

6
source/py_pwm.c
View File

@ -165,7 +165,7 @@ static PyObject *py_set_frequency(PyObject *self, PyObject *args, PyObject *kwar
}
static const char moduledocstring[] = "PWM functionality of a CHIP using Python";
static const char moduledocstring[] = "Hardware PWM functionality of a CHIP using Python";
PyMethodDef pwm_methods[] = {
{"start", (PyCFunction)py_start_channel, METH_VARARGS | METH_KEYWORDS, "Set up and start the PWM channel. channel can be in the form of 'PWM0', or 'U13_18'"},
@ -178,7 +178,7 @@ PyMethodDef pwm_methods[] = {
};
#if PY_MAJOR_VERSION > 2
static struct PyModuleDef bbpwmmodule = {
static struct PyModuleDef chippwmmodule = {
PyModuleDef_HEAD_INIT,
"PWM", // name of module
moduledocstring, // module documentation, may be NULL
@ -196,7 +196,7 @@ PyMODINIT_FUNC initPWM(void)
PyObject *module = NULL;
#if PY_MAJOR_VERSION > 2
if ((module = PyModule_Create(&bbpwmmodule)) == NULL)
if ((module = PyModule_Create(&chippwmmodule)) == NULL)
return NULL;
#else
if ((module = Py_InitModule3("PWM", pwm_methods, moduledocstring)) == NULL)