amy/upiwin
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

adding first module definition for UPIWIN (the backlight functions)

Browse Source
This commit is contained in:
Amy G. Bowersox 2019-12-07 20:53:59 -07:00
parent 05bdcdaa4b
commit 2576f6ae2e
8 changed files with 169 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/Makefile
View File

@ -1,4 +1,4 @@
OBJS=main.o sysinput.o ep_init.o ep_util.o fbinit.o fbprimitive.o log.o gpio.o msg_queue.o \
OBJS=main.o sysinput.o ep_init.o ep_upiwin.o ep_backlight.o ep_util.o fbinit.o fbprimitive.o log.o gpio.o msg_queue.o \
time_func.o config.o splash.o
LIBS=-lpython3.7m -lcrypt -lbcm2835 -lpthread -ldl -lutil -lm
CFLAGS=-I/usr/include/python3.7m -Wall -fstack-protector -fwrapv -fno-PIE -g -O3 -DDEBUG_ASSERT

63
src/ep_backlight.c Normal file
View File

@ -0,0 +1,63 @@
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include "gpio.h"
#include "ep_upiwin.h"
#include "ep_init.h"
PyObject *Epython_get_backlight(PyObject *self, PyObject *args)
{
PUPIWIN_STATE pstate;
if (!PyArg_ParseTuple(args, ""))
return NULL;
pstate = (PUPIWIN_STATE)PyModule_GetState(UPIWIN_module);
return PyBool_FromLong((long)(pstate->backlight_on));
}
PyObject *Epython_set_backlight(PyObject *self, PyObject *args)
{
PUPIWIN_STATE pstate;
int new_state;
if (!PyArg_ParseTuple(args, "p", &new_state))
return NULL;
pstate = (PUPIWIN_STATE)PyModule_GetState(UPIWIN_module);
if (new_state && !(pstate->backlight_on))
Gpio_set_backlight(pstate->backlight_level);
else if (!new_state && pstate->backlight_on)
Gpio_set_backlight(0);
pstate->backlight_on = MAKEBOOL(new_state);
return PyLong_FromUnsignedLong(S_OK);
}
PyObject *Epython_get_backlight_level(PyObject *self, PyObject *args)
{
PUPIWIN_STATE pstate;
if (!PyArg_ParseTuple(args, ""))
return NULL;
pstate = (PUPIWIN_STATE)PyModule_GetState(UPIWIN_module);
return PyLong_FromUnsignedLong(pstate->backlight_level);
}
PyObject *Epython_set_backlight_level(PyObject *self, PyObject *args)
{
PUPIWIN_STATE pstate;
UINT32 new_level;
HRESULT hr = S_OK;
if (!PyArg_ParseTuple(args, "k", &new_level))
return NULL;
if (new_level <= GSB_BACKLIGHT_MAX)
{
pstate = (PUPIWIN_STATE)PyModule_GetState(UPIWIN_module);
if (pstate->backlight_on)
Gpio_set_backlight(new_level);
pstate->backlight_level = new_level;
}
else
{
hr = E_INVALIDARG;
}
return PyLong_FromUnsignedLong(hr);
}

46
src/ep_init.c
View File

@ -11,30 +11,40 @@ const PCSTR Mod_UPIWIN_tmp = "upiwin_tmp"; /* name of the temporary UPIWIN
static wchar_t *python_name = NULL; /* location of the Python executable */
static PyObject *upiwin_module = NULL;
static PyObject *upiwin_tmp_module = NULL;
PyObject *UPIWIN_module = NULL;
PyObject *UPIWIN_tmp_module = NULL;
static PyObject *init_upiwin_module(void)
{
}
static PyModuleDef DefUPIWIN_tmp = {
PyModuleDef_HEAD_INIT, /* standard garbage */
Mod_UPIWIN, /* module name */
NULL, /* no doc string */
-1, /* no per-module memory */
NULL, /* method defs will be added later */
NULL, /* no slots for multi-phase init */
NULL, /* no traversal proc */
NULL, /* no clear function */
NULL /* no free function */
};
static PyObject *init_upiwin_tmp_module(void)
{
PyObject *module = PyModule_Create(&DefUPIWIN_tmp);
return module;
}
/* used to link the two modules into Python's init table */
static struct _inittab upiwin_inittab[] = {
{ Mod_UPIWIN, init_upiwin_module },
{ Mod_UPIWIN_tmp, init_upiwin_tmp_module },
{ NULL, NULL }
{ Mod_UPIWIN, Epython_init_upiwin_module },
{ Mod_UPIWIN_tmp, init_upiwin_tmp_module },
{ NULL, NULL }
};
static void epython_cleanup(void)
{
Py_DECREF(upiwin_tmp_module);
upiwin_tmp_module = NULL;
Py_DECREF(upiwin_module);
upiwin_module = NULL;
Py_DECREF(UPIWIN_tmp_module);
UPIWIN_tmp_module = NULL;
Py_DECREF(UPIWIN_module);
UPIWIN_module = NULL;
if (!Py_FinalizeEx())
Log(LWARN, "errors encountered when Python uninitialized itself");
PyMem_RawFree(python_name);
@ -72,15 +82,15 @@ HRESULT Epython_setup(void)
Py_Initialize();
/* Import the modules */
upiwin_module = PyImport_ImportModule(Mod_UPIWIN);
if (!upiwin_module)
UPIWIN_module = PyImport_ImportModule(Mod_UPIWIN);
if (!UPIWIN_module)
{
Log(LFATAL, "error importing the upiwin module");
hr = Epython_trace_exception();
goto error_1;
}
upiwin_tmp_module = PyImport_ImportModule(Mod_UPIWIN_tmp);
if (!upiwin_tmp_module)
UPIWIN_tmp_module = PyImport_ImportModule(Mod_UPIWIN_tmp);
if (!UPIWIN_tmp_module)
{
Log(LFATAL, "error importing the upiwin_tmp module");
hr = Epython_trace_exception();
@ -93,8 +103,8 @@ HRESULT Epython_setup(void)
return hr;
error_2:
Py_DECREF(upiwin_module);
upiwin_module = NULL;
Py_DECREF(UPIWIN_module);
UPIWIN_module = NULL;
error_1:
Py_FinalizeEx();
error_0:

7
src/ep_init.h
View File

@ -1,11 +1,18 @@
#ifndef __EP_INIT_H_INCLUDED
#define __EP_INIT_H_INCLUDED
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include "wintype.h"
extern const PCSTR Mod_UPIWIN;
extern const PCSTR Mod_UPIWIN_tmp;
extern PyObject *UPIWIN_module;
extern PyObject *UPIWIN_tmp_module;
extern PyObject *Epython_init_upiwin_module(void);
extern HRESULT Epython_setup(void);
#endif /* __EP_INIT_H_INCLUDED */

48
src/ep_upiwin.c Normal file
View File

@ -0,0 +1,48 @@
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include "scode.h"
#include "ep_init.h"
#include "gpio.h"
#include "ep_upiwin.h"
static PyMethodDef UPIWINMethods[] = {
/* Backlight control functions */
{"get_backlight", Epython_get_backlight, METH_VARARGS,
"Returns the current status of the backlight (True=on, False=off)."},
{"set_backlight", Epython_set_backlight, METH_VARARGS,
"Sets the current status of the backlight (True=on, False=off). Returns a SCODE."},
{"get_backlight_level", Epython_get_backlight_level, METH_VARARGS,
"Returns the current intensity level of the backlight."},
{"set_backlight_level", Epython_set_backlight_level, METH_VARARGS,
"Sets the current intensity level of the backlight. Returns a SCODE."},
{NULL, NULL, 0, NULL}
};
static PyModuleDef DefUPIWIN = {
PyModuleDef_HEAD_INIT, /* standard garbage */
Mod_UPIWIN, /* module name */
NULL, /* no doc string */
sizeof(UPIWIN_STATE), /* per-module memory */
UPIWINMethods, /* method defs */
NULL, /* no slots for multi-phase init */
NULL, /* no traversal proc */
NULL, /* no clear function */
NULL /* no free function */
};
PyObject *Epython_init_upiwin_module(void)
{
PyObject *module;
PUPIWIN_STATE pstate;
module = PyModule_Create(&DefUPIWIN);
if (!module)
return NULL;
/* set up the module state */
pstate = (PUPIWIN_STATE)PyModule_GetState(module);
pstate->backlight_on = TRUE;
pstate->backlight_level = GSB_BACKLIGHT_DEFAULT;
return module;
}

19
src/ep_upiwin.h Normal file
View File

@ -0,0 +1,19 @@
#ifndef __EP_UPIWIN_H_INCLUDED
#define __EP_UPIWIN_H_INCLUDED
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include "wintype.h"
typedef struct tagUPIWIN_STATE {
BOOL backlight_on;
UINT32 backlight_level;
} UPIWIN_STATE, *PUPIWIN_STATE;
/* method definitions go here */
extern PyObject *Epython_get_backlight(PyObject *self, PyObject *args);
extern PyObject *Epython_set_backlight(PyObject *self, PyObject *args);
extern PyObject *Epython_get_backlight_level(PyObject *self, PyObject *args);
extern PyObject *Epython_set_backlight_level(PyObject *self, PyObject *args);
#endif /* __EP_UPIWIN_H_INCLUDED */

2
src/gpio.c
View File

@ -61,7 +61,7 @@ HRESULT Gpio_setup(void)
bcm2835_pwm_set_clock(BCM2835_PWM_CLOCK_DIVIDER_2);
bcm2835_pwm_set_mode(PWM_BACKLIGHT, 1, 1);
bcm2835_pwm_set_range(PWM_BACKLIGHT, GSB_BACKLIGHT_MAX + 1);
bcm2835_pwm_set_data(PWM_BACKLIGHT, GSB_BACKLIGHT_MAX);
bcm2835_pwm_set_data(PWM_BACKLIGHT, GSB_BACKLIGHT_DEFAULT);
hr = Config_exitfunc(do_cleanup);
if (FAILED(hr))

2
src/gpio.h
View File

@ -13,6 +13,8 @@
#define GSB_BACKLIGHT_MAX 1023 /* maximum level for backlight */
#define GSB_BACKLIGHT_DEFAULT GSB_BACKLIGHT_MAX
extern HRESULT Gpio_setup(void);
extern UINT32 Gpio_read_buttons(void);
extern void Gpio_set_backlight(UINT32 level);