/*----------------------------------------------------------------------------*/
static enum Result adcInit(void *object, const void *configBase)
{
const struct AdcOneShotConfig * const config = configBase;
assert(config);
const struct AdcBaseConfig baseConfig = {
.frequency = config->frequency,
.accuracy = 0,
.channel = config->channel
};
struct AdcOneShot * const interface = object;
/* Call base class constructor */
const enum Result res = AdcBase->init(interface, &baseConfig);
if (res == E_OK)
{
/* Enable analog function on the input pin */
interface->pin = adcConfigPin(&interface->base, config->pin);
/* Calculate Control register value */
interface->base.control |= CR_START(ADC_SOFTWARE)
| CR_SEL_CHANNEL(interface->pin.channel);
}
return res;
}
/*----------------------------------------------------------------------------*/
#ifndef CONFIG_PLATFORM_NXP_ADC_NO_DEINIT
static void adcDeinit(void *object)
{
struct AdcOneShot * const interface = object;
adcReleasePin(interface->pin);
if (AdcBase->deinit)
AdcBase->deinit(interface);
}
#endif
/*----------------------------------------------------------------------------*/
static enum Result adcSetCallback(void *object __attribute__((unused)),
void (*callback)(void *) __attribute__((unused)),
void *argument __attribute__((unused)))
{
return E_INVALID;
}
/*----------------------------------------------------------------------------*/
static enum Result adcGetParam(void *object __attribute__((unused)),
enum IfParameter parameter __attribute__((unused)),
void *data __attribute__((unused)))
{
return E_INVALID;
}
/*----------------------------------------------------------------------------*/
static enum Result adcSetParam(void *object __attribute__((unused)),
enum IfParameter parameter __attribute__((unused)),
const void *data __attribute__((unused)))
{
return E_INVALID;
}
/*----------------------------------------------------------------------------*/
static size_t adcRead(void *object, void *buffer, size_t length)
{
/* Ensure proper alignment of the output buffer length */
assert((uintptr_t)buffer % 2 == 0);
if (length < sizeof(uint16_t))
return 0;
struct AdcOneShot * const interface = object;
if (adcSetInstance(interface->base.channel, &interface->base))
{
*(uint16_t *)buffer = makeChannelConversion(interface);
adcResetInstance(interface->base.channel);
return sizeof(uint16_t);
}
else
return 0;
}
int main(int argc, char* argv[])
{
uint32_t tmp = 0;
uint32_t volatile timing_barrier = 0;
// we explicitly create the array of CR_CONTEXT structures
CR_CONTEXT context_array[CONTEXT_ARRAY_CNT];
// register a cleanup function
atexit(cleanup);
// some signal handlers
if (signal(SIGFPE, signal_handler) == SIG_ERR) {
perror("An error occured while setting the SIGFPE signal handler.\n");
} else if (signal( SIGILL, signal_handler) == SIG_ERR) {
perror("An error occured while setting the SIGILL signal handler.\n");
} else if (signal( SIGINT, signal_handler) == SIG_ERR) {
perror("An error occured while setting the SIGINT signal handler.\n");
} else if (signal( SIGSEGV, signal_handler) == SIG_ERR) {
perror("An error occured while setting the SIGSEGV signal handler.\n");
}
// 1. init the cr library
assert(((sizeof(context_array) / sizeof(CR_CONTEXT)) == CONTEXT_ARRAY_CNT)
&& "context_array size mismatch!\n");
cr_init(context_array, CONTEXT_ARRAY_CNT);
// 2. register the threads
cr_register_thread(Thread_A);
cr_register_thread(Thread_B);
cr_register_thread(Thread_C);
cr_register_thread(Thread_D);
//--------------------------------------------------------------------------
//-------------------- Simulated ISR Thread Setup --------------------------
pthread_attr_init(&isr_thread_attr);
pthread_attr_setschedpolicy(&isr_thread_attr, SCHED_RR);
pthread_attr_setstacksize(&isr_thread_attr, PTHREAD_STACK_MIN);
// XXX: the scheduling priority could be set here
pthread_attr_setschedparam(&isr_thread_attr, &isr_thread_sched);
isr_thread_run = true;
tmp = pthread_create(&isr_thread_id, &isr_thread_attr, isr_thread, 0);
assert((tmp == 0) && "pthread_create failed!");
timing_barrier = 1000;
// Code block to stop the compiler from messing with the code
{
while(timing_barrier--)
/* no code */ ;
}
//--------------------------------------------------------------------------
// 3. bootstrap the system
CR_START(cr_idle);
return EXIT_SUCCESS;
}