static int aon_timer_qmsi_set_alarm(struct device *dev,
counter_callback_t callback,
u32_t count, void *user_data)
{
qm_aonpt_config_t qmsi_cfg;
int result = 0;
/* Check if timer has been started */
if (QM_AONC[QM_AONC_0]->aonpt_cfg == 0) {
return -ENOTSUP;
}
user_cb = callback;
qmsi_cfg.callback = aonpt_int_callback;
qmsi_cfg.int_en = true;
qmsi_cfg.count = count;
qmsi_cfg.callback_data = user_data;
if (IS_ENABLED(CONFIG_AON_API_REENTRANCY)) {
k_sem_take(RP_GET(dev), K_FOREVER);
}
if (qm_aonpt_set_config(QM_AONC_0, &qmsi_cfg)) {
user_cb = NULL;
result = -EIO;
}
if (IS_ENABLED(CONFIG_AON_API_REENTRANCY)) {
k_sem_give(RP_GET(dev));
}
return result;
}
static int aon_timer_qmsi_start(struct device *dev)
{
qm_aonpt_config_t qmsi_cfg;
int result = 0;
user_cb = NULL;
qmsi_cfg.callback = NULL;
qmsi_cfg.int_en = false;
/* AONPT is a countdown timer. So, set the initial value to
* the maximum value.
*/
qmsi_cfg.count = 0xffffffff;
qmsi_cfg.callback_data = NULL;
if (IS_ENABLED(CONFIG_AON_API_REENTRANCY)) {
k_sem_take(RP_GET(dev), K_FOREVER);
}
if (qm_aonpt_set_config(QM_AONC_0, &qmsi_cfg)) {
result = -EIO;
}
if (IS_ENABLED(CONFIG_AON_API_REENTRANCY)) {
k_sem_give(RP_GET(dev));
}
return result;
}
int main(void)
{
uint32_t c_val = 0, pt_val = 0;
qm_aonpt_config_t cfg;
QM_PUTS("Starting: Always-on Counter");
/* Always-on Counter enable and read value. */
qm_aonc_enable(QM_AONC_0);
if (qm_aonc_get_value(QM_AONC_0, &c_val) == 0) {
QM_PRINTF("Always-on Counter value: %u\n", c_val);
} else {
QM_PUTS("Error: Could not read aonc value.");
}
/* Request an IRQ and write the Always-on Periodic Timer config. */
cfg.count = 0x1000; /* 0.125 seconds. */
cfg.int_en = true; /* Interrupts enabled. */
cfg.callback = aonpt_example_callback;
qm_irq_request(QM_IRQ_AONPT_0_INT, qm_aonpt_0_isr);
qm_aonpt_set_config(QM_AONC_0, &cfg);
/* Wait for the defined number of callbacks be invoked. */
while (NUM_CALLBACKS > callback_count)
;
QM_PRINTF("Periodic Timer callback fired %d times.\n", callback_count);
/* Get the value of the Always-on Periodic Timer. */
if (qm_aonpt_get_value(QM_AONC_0, &c_val) == 0) {
QM_PRINTF("Always-on Periodic Timer value: %u\n", pt_val);
} else {
QM_PUTS("Error: Could not read Periodic timer value");
}
/* Disable the always-on periodic timer interrupt. */
cfg.int_en = false;
qm_aonpt_set_config(QM_AONC_0, &cfg);
QM_PUTS("Finished: Always-on counter");
return 0;
}
int main(void)
{
volatile uint32_t delay;
uint32_t c_val = 0, pt_val = 0;
qm_aonpt_config_t cfg;
QM_PUTS("\nAlways-on Counter example app\n");
/* Always-on Counter enable, disable and read value */
qm_aonc_disable(QM_SCSS_AON_0);
qm_aonc_enable(QM_SCSS_AON_0);
c_val = qm_aonc_get_value(QM_SCSS_AON_0);
if (c_val) {
QM_PRINTF("Always-on Counter value: %lu\n", c_val);
} else {
QM_PRINTF("ERROR: Could not read aonc value\n");
}
/* Request an IRQ and write the Always-on Periodic Timer config */
cfg.count = 0x10000;
cfg.int_en = true;
cfg.callback = aonpt_example_callback;
qm_irq_request(QM_IRQ_AONPT_0, qm_aonpt_isr_0);
qm_aonpt_set_config(QM_SCSS_AON_0, &cfg);
/* The AON Periodic Timer runs from the RTC clock at 32KHz (rather than
* the system clock which is 32MHz) so we need to spin for a few cycles
* allow the register change to propagate */
for (delay = 500; delay--;) {
}
/* Get the value of the Always-on Periodic Timer */
pt_val = qm_aonpt_get_value(QM_SCSS_AON_0);
if (pt_val) {
QM_PRINTF("Always-on Periodic Timer value: %lu\n", pt_val);
} else {
QM_PRINTF("ERROR: Could not read Periodic timer value\n\n");
}
QM_PUTS("Always-on counter example app complete\n");
return 0;
}
static int aon_timer_qmsi_stop(struct device *dev)
{
qm_aonpt_config_t qmsi_cfg;
qmsi_cfg.callback = NULL;
qmsi_cfg.int_en = false;
qmsi_cfg.count = 0;
qmsi_cfg.callback_data = NULL;
if (IS_ENABLED(CONFIG_AON_API_REENTRANCY)) {
k_sem_take(RP_GET(dev), K_FOREVER);
}
qm_aonpt_set_config(QM_AONC_0, &qmsi_cfg);
if (IS_ENABLED(CONFIG_AON_API_REENTRANCY)) {
k_sem_give(RP_GET(dev));
}
return 0;
}