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esp-idf/components/hal/timer_hal.c

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gptimer: clean up hal and ll for driver-ng
2021-09-27 12:46:51 +08:00
/*
feat(gptimer): add gptimer linker.lf to control the placement of driver and hal since the linker placement of the hal functions are controlled by the Kconfig in the driver component, we should create the linker.lf in the driver component, not in the hal component.
2023-07-01 23:12:38 +08:00
* SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
gptimer: clean up hal and ll for driver-ng
2021-09-27 12:46:51 +08:00
*
* SPDX-License-Identifier: Apache-2.0
*/
feat(timer): refator timer group driver 1. add hal and low-level layer for timer group 2. add callback functions to handle interrupt 3. add timer deinit function 4. add timer spinlock take function
2019-07-15 14:21:36 +08:00
gptimer: bringup driver on esp32c6
2022-07-13 13:17:32 +08:00
#include <stdlib.h>
feat(timer): refator timer group driver 1. add hal and low-level layer for timer group 2. add callback functions to handle interrupt 3. add timer deinit function 4. add timer spinlock take function
2019-07-15 14:21:36 +08:00
#include "hal/timer_hal.h"
gptimer: clean up hal and ll for driver-ng
2021-09-27 12:46:51 +08:00
#include "hal/timer_ll.h"
gptimer: bringup driver on esp32c6
2022-07-13 13:17:32 +08:00
#include "soc/soc_caps.h"
feat(timer): refator timer group driver 1. add hal and low-level layer for timer group 2. add callback functions to handle interrupt 3. add timer deinit function 4. add timer spinlock take function
2019-07-15 14:21:36 +08:00
gptimer: clean up hal and ll for driver-ng
2021-09-27 12:46:51 +08:00
void timer_hal_init(timer_hal_context_t *hal, uint32_t group_num, uint32_t timer_num)
feat(timer): refator timer group driver 1. add hal and low-level layer for timer group 2. add callback functions to handle interrupt 3. add timer deinit function 4. add timer spinlock take function
2019-07-15 14:21:36 +08:00
{
hal->dev = TIMER_LL_GET_HW(group_num);
gptimer: clean up hal and ll for driver-ng
2021-09-27 12:46:51 +08:00
hal->timer_id = timer_num;
gptimer: bringup driver on esp32c6
2022-07-13 13:17:32 +08:00
// stop counter, alarm, auto-reload at first place
timer_ll_enable_counter(hal->dev, timer_num, false);
timer_ll_enable_auto_reload(hal->dev, timer_num, false);
timer_ll_enable_alarm(hal->dev, timer_num, false);
feat(mcpwm): MCPWM event comparator driver In esp32p4, the MCPWM has a new feature, mainly ETM-oriented. Each operator has two event comparators, can generate an event when the count value of the timer that operator connects is equal to the value of event comparator.
2023-08-24 16:13:17 +08:00
// enable ETM subsystem if available
gptimer: bringup driver on esp32c6
2022-07-13 13:17:32 +08:00
#if SOC_TIMER_SUPPORT_ETM
timer_ll_enable_etm(hal->dev, true);
#endif
}
void timer_hal_deinit(timer_hal_context_t *hal)
{
// ensure counter, alarm, auto-reload are disabled
timer_ll_enable_counter(hal->dev, hal->timer_id, false);
timer_ll_enable_auto_reload(hal->dev, hal->timer_id, false);
timer_ll_enable_alarm(hal->dev, hal->timer_id, false);
#if SOC_TIMER_SUPPORT_ETM
timer_ll_enable_etm(hal->dev, false);
#endif
hal->dev = NULL;
feat(timer): refator timer group driver 1. add hal and low-level layer for timer group 2. add callback functions to handle interrupt 3. add timer deinit function 4. add timer spinlock take function
2019-07-15 14:21:36 +08:00
}
feat(gptimer): add gptimer linker.lf to control the placement of driver and hal since the linker placement of the hal functions are controlled by the Kconfig in the driver component, we should create the linker.lf in the driver component, not in the hal component.
2023-07-01 23:12:38 +08:00
void timer_hal_set_counter_value(timer_hal_context_t *hal, uint64_t load_val)
{
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// - `timer_ll_set_reload_value()` will only indicate the `reload_value`
// - `timer_ll_set_reload_value()` + ``timer_ll_trigger_soft_reload()` can update the HW counter value by software
// Therefore, after updating the HW counter value, we need to restore the previous `reload_value`.
// Attention: The following process should be protected by a lock in the driver layer.
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// save current reload value
uint64_t old_reload = timer_ll_get_reload_value(hal->dev, hal->timer_id);
timer_ll_set_reload_value(hal->dev, hal->timer_id, load_val);
timer_ll_trigger_soft_reload(hal->dev, hal->timer_id);
// restore the previous reload value
timer_ll_set_reload_value(hal->dev, hal->timer_id, old_reload);
}
uint64_t timer_hal_capture_and_get_counter_value(timer_hal_context_t *hal)
{
timer_ll_trigger_soft_capture(hal->dev, hal->timer_id);
return timer_ll_get_counter_value(hal->dev, hal->timer_id);
}
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