auracaster/hci_uart_iso_timesync
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main: support for more gpios and timers

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This commit is contained in:
Matthias Ringwald
2024-11-27 11:41:19 +01:00
parent f54d1d3572
commit 9d82bf91e3
1 changed files with 44 additions and 0 deletions
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src/main.c
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@@ -31,6 +31,7 @@
#include <zephyr/bluetooth/buf.h>
#include <zephyr/bluetooth/hci_raw.h>
#include <nrfx_timer.h>
#include "audio_sync_timer.h"
#define LOG_MODULE_NAME hci_uart
@@ -369,6 +370,9 @@ static const struct gpio_dt_spec timesync_pin = GPIO_DT_SPEC_GET(TIMESYNC_GPIO,
#error "No timesync gpio available!"
#endif
#define ALTERNATE_TOGGLE_GPIO DT_NODELABEL(alternate_toggle)
static const struct gpio_dt_spec alternate_toggle_pin = GPIO_DT_SPEC_GET(ALTERNATE_TOGGLE_GPIO, gpios);
#define HCI_CMD_ISO_TIMESYNC (0x200)
struct hci_cmd_iso_timestamp_response {
@@ -468,8 +472,48 @@ static uint32_t toggle_and_get_time(void) {
#endif
#define TIME_TO_WAIT_MS 1000
#define SYNC_TOGGLE_TIMER_INSTANCE_NUMBER 2
static const nrfx_timer_t sync_toggle_timer_instance =
NRFX_TIMER_INSTANCE(SYNC_TOGGLE_TIMER_INSTANCE_NUMBER);
static nrfx_timer_config_t cfg = {.frequency = NRFX_MHZ_TO_HZ(1UL),
.mode = NRF_TIMER_MODE_TIMER,
.bit_width = NRF_TIMER_BIT_WIDTH_32,
.interrupt_priority = NRFX_TIMER_DEFAULT_CONFIG_IRQ_PRIORITY,
.p_context = NULL};
static void sync_toggle_timer_isr_handler(nrf_timer_event_t event_type, void *p_context){
ARG_UNUSED(p_context);
if(event_type == NRF_TIMER_EVENT_COMPARE1)
{
uint32_t remainder_us = nrf_timer_cc_get(NRF_TIMER2, NRF_TIMER_CC_CHANNEL1);
gpio_pin_toggle_dt( &alternate_toggle_pin );
LOG_INF("HS Timer: %d", remainder_us );
uint32_t next_timeout_ticks = remainder_us + nrfx_timer_ms_to_ticks(&sync_toggle_timer_instance, TIME_TO_WAIT_MS);
nrfx_timer_compare(&sync_toggle_timer_instance, NRF_TIMER_CC_CHANNEL1, next_timeout_ticks, true);
}
}
int main(void)
{
// timer setup
nrfx_err_t ret;
ret = nrfx_timer_init(&sync_toggle_timer_instance, &cfg, sync_toggle_timer_isr_handler);
if (ret - NRFX_ERROR_BASE_NUM) {
LOG_ERR("nrfx timer init error: %d", ret);
return -ENODEV;
}
uint32_t desired_ticks = nrfx_timer_ms_to_ticks(&sync_toggle_timer_instance, TIME_TO_WAIT_MS);
nrfx_timer_compare(&sync_toggle_timer_instance, NRF_TIMER_CC_CHANNEL1, desired_ticks, true);
IRQ_CONNECT(NRFX_IRQ_NUMBER_GET(NRF_TIMER_INST_GET(SYNC_TOGGLE_TIMER_INSTANCE_NUMBER)), IRQ_PRIO_LOWEST,
NRFX_TIMER_INST_HANDLER_GET(SYNC_TOGGLE_TIMER_INSTANCE_NUMBER), 0, 0);
nrfx_timer_enable(&sync_toggle_timer_instance);
/* incoming events and data from the controller */
static K_FIFO_DEFINE(rx_queue);
int err;