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647dea9395
During HAL layer refactoring and new chip bringup, we have several caps.h for each part, to reduce the conflicts to minimum. But this is The capabilities headers will be relataive stable once completely written (maybe after the featues are supported by drivers). Now ESP32 and ESP32-S2 drivers are relative stable, making it a good time to combine all these caps.h into one soc_caps.h This cleanup also move HAL config and pin config into separated files, to make the responsibilities of these headers more clear. This is helpful for the stabilities of soc_caps.h because we want to make it public some day.
116 lines
3.7 KiB
C
116 lines
3.7 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <sys/param.h>
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#include "soc/soc_caps.h"
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#include "hal/systimer_hal.h"
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#include "hal/systimer_ll.h"
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#include "hal/systimer_types.h"
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#include "hal/clk_gate_ll.h"
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#define SYSTIMER_TICKS_PER_US (16) // Systimer clock source is fixed to 16MHz
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uint64_t systimer_hal_get_counter_value(systimer_counter_id_t counter_id)
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{
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uint32_t lo, lo_start, hi;
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/* Set the "update" bit and wait for acknowledgment */
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systimer_ll_counter_snapshot(counter_id);
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while (!systimer_ll_is_counter_value_valid(counter_id));
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/* Read LO, HI, then LO again, check that LO returns the same value.
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* This accounts for the case when an interrupt may happen between reading
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* HI and LO values, and this function may get called from the ISR.
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* In this case, the repeated read will return consistent values.
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*/
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lo_start = systimer_ll_get_counter_value_low(counter_id);
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do {
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lo = lo_start;
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hi = systimer_ll_get_counter_value_high(counter_id);
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lo_start = systimer_ll_get_counter_value_low(counter_id);
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} while (lo_start != lo);
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systimer_counter_value_t result = {
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.lo = lo,
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.hi = hi
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};
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return result.val;
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}
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uint64_t systimer_hal_get_time(systimer_counter_id_t counter_id)
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{
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return systimer_hal_get_counter_value(counter_id) / SYSTIMER_TICKS_PER_US;
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}
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void systimer_hal_set_alarm_value(systimer_alarm_id_t alarm_id, uint64_t timestamp)
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{
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systimer_counter_value_t alarm = { .val = timestamp * SYSTIMER_TICKS_PER_US};
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systimer_ll_disable_alarm(alarm_id);
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systimer_ll_set_alarm_value(alarm_id, alarm.val);
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systimer_ll_apply_alarm_value(alarm_id);
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systimer_ll_enable_alarm(alarm_id);
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}
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uint64_t systimer_hal_get_alarm_value(systimer_alarm_id_t alarm_id)
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{
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return systimer_ll_get_alarm_value(alarm_id);
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}
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void systimer_hal_enable_alarm_int(systimer_alarm_id_t alarm_id)
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{
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systimer_ll_enable_alarm_int(alarm_id);
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}
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void systimer_hal_on_apb_freq_update(uint32_t apb_ticks_per_us)
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{
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/* Nothing to do here, SYSTIMER clock is independent of APB clock */
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(void)apb_ticks_per_us;
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}
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void systimer_hal_counter_value_advance(systimer_counter_id_t counter_id, int64_t time_us)
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{
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systimer_counter_value_t new_count = { .val = systimer_hal_get_counter_value(counter_id) + time_us * SYSTIMER_TICKS_PER_US };
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systimer_ll_set_counter_value(counter_id, new_count.val);
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systimer_ll_apply_counter_value(counter_id);
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}
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void systimer_hal_enable_counter(systimer_counter_id_t counter_id)
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{
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systimer_ll_enable_counter(counter_id);
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}
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void systimer_hal_init(void)
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{
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periph_ll_enable_clk_clear_rst(PERIPH_SYSTIMER_MODULE);
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systimer_ll_enable_clock();
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}
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void systimer_hal_select_alarm_mode(systimer_alarm_id_t alarm_id, systimer_alarm_mode_t mode)
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{
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switch (mode) {
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case SYSTIMER_ALARM_MODE_ONESHOT:
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systimer_ll_enable_alarm_oneshot(alarm_id);
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break;
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case SYSTIMER_ALARM_MODE_PERIOD:
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systimer_ll_enable_alarm_period(alarm_id);
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break;
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default:
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break;
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}
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}
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void systimer_hal_connect_alarm_counter(systimer_alarm_id_t alarm_id, systimer_counter_id_t counter_id)
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{
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systimer_ll_connect_alarm_counter(alarm_id, counter_id);
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}
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