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risc-v/espressif: Add High Resolution Timer driver
Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
This commit is contained in:
Gustavo Henrique Nihei
committed by
Alan Carvalho de Assis
Alan Carvalho de Assis
parent
6a799fef6c
commit
ffef83c9a1
@@ -213,6 +213,15 @@ config ESPRESSIF_UART1
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select UART1_SERIALDRIVER
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select ARCH_HAVE_SERIAL_TERMIOS
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config ESPRESSIF_HR_TIMER
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bool "High-Resolution Timer"
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default n
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---help---
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A high-resolution hardware timer for supporting the management of
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kernel events.
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The HR Timer is built on top of the System Timer (SYSTIMER) peripheral.
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Timer callbacks are dispatched from a high-priority kernel task.
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config ESPRESSIF_BROWNOUT_DET
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bool "Brownout Detector"
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default y
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@@ -352,6 +361,26 @@ endchoice # ESPRESSIF_FLASH_FREQ
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endmenu # SPI Flash Configuration
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menu "High Resolution Timer"
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depends on ESPRESSIF_HR_TIMER
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config ESPRESSIF_HR_TIMER_TASK_NAME
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string "High Resolution Timer task name"
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default "hr_timer"
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config ESPRESSIF_HR_TIMER_TASK_PRIORITY
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int "High Resolution Timer task priority"
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default 223
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---help---
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Priority level of the High Resolution Timer task.
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Must be lower than the SCHED_HPWORKPRIORITY.
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config ESPRESSIF_HR_TIMER_TASK_STACK_SIZE
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int "High Resolution Timer task stack size"
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default 2048
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endmenu # High Resolution Timer
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menu "Application Image Configuration"
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config ESPRESSIF_PARTITION_TABLE_OFFSET
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@@ -46,6 +46,10 @@ ifneq ($(CONFIG_DEV_RANDOM)$(CONFIG_DEV_URANDOM_ARCH),)
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CHIP_CSRCS += esp_random.c
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endif
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ifeq ($(CONFIG_ESPRESSIF_HR_TIMER),y)
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CHIP_CSRCS += esp_hr_timer.c
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endif
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#############################################################################
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# Espressif HAL for 3rd Party Platforms
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#############################################################################
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,232 @@
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/****************************************************************************
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* arch/risc-v/src/espressif/esp_hr_timer.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_RISCV_SRC_ESPRESSIF_ESP_HR_TIMER_H
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#define __ARCH_RISCV_SRC_ESPRESSIF_ESP_HR_TIMER_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <nuttx/list.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define HR_TIMER_NOFLAGS (0) /* Timer supports no feature */
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#define HR_TIMER_REPEAT (1 << 0) /* Timer supports repeat mode */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* HR Timer state */
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enum esp_hr_timer_state_e
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{
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HR_TIMER_IDLE, /* Timer is not counting */
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HR_TIMER_READY, /* Timer is counting */
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HR_TIMER_TIMEOUT, /* Timer timed out */
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HR_TIMER_DELETE /* Timer is to be delete */
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};
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/* HR Timer data structure */
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struct esp_hr_timer_s
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{
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uint64_t timeout; /* Timeout value */
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uint64_t alarm; /* Timeout period */
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void (*callback)(void *arg); /* Callback function */
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void *arg; /* Private data */
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uint16_t flags; /* Supported features */
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enum esp_hr_timer_state_e state; /* Timer state */
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struct list_node list; /* Working list */
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};
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/* HR Timer creation arguments data structure */
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struct esp_hr_timer_args_s
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{
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void (*callback)(void *arg); /* Callback function */
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void *arg; /* Private data */
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};
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: esp_hr_timer_create
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*
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* Description:
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* Create a High Resolution Timer from the provided arguments.
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*
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* Input Parameters:
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* args - HR Timer creation arguments.
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*
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* Output Parameters:
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* timer_handle - HR Timer handle pointer.
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*
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* Returned Value:
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* Zero (OK) is returned on success; a negated errno value is returned on
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* any failure.
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*
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****************************************************************************/
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int esp_hr_timer_create(const struct esp_hr_timer_args_s *args,
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struct esp_hr_timer_s **timer_handle);
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/****************************************************************************
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* Name: esp_hr_timer_start
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*
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* Description:
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* Start the High Resolution Timer.
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*
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* Input Parameters:
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* timer - HR Timer pointer.
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* timeout - Timeout value.
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* repeat - Repeat mode (true: enabled, false: disabled).
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void esp_hr_timer_start(struct esp_hr_timer_s *timer,
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uint64_t timeout,
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bool repeat);
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/****************************************************************************
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* Name: esp_hr_timer_stop
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*
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* Description:
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* Stop the High Resolution Timer.
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*
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* Input Parameters:
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* timer - HR Timer pointer.
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void esp_hr_timer_stop(struct esp_hr_timer_s *timer);
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/****************************************************************************
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* Name: esp_hr_timer_delete
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*
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* Description:
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* Stop and delete the High Resolution Timer.
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*
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* Input Parameters:
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* timer - HR Timer pointer.
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void esp_hr_timer_delete(struct esp_hr_timer_s *timer);
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/****************************************************************************
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* Name: esp_hr_timer_time_us
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*
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* Description:
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* Get time of the High Resolution Timer in microseconds.
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*
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* Input Parameters:
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* None.
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*
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* Returned Value:
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* Time of the HR Timer in microseconds.
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*
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****************************************************************************/
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uint64_t esp_hr_timer_time_us(void);
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/****************************************************************************
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* Name: esp_hr_timer_get_alarm
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*
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* Description:
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* Get the timestamp when the next timeout is expected to occur.
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*
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* Input Parameters:
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* None.
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*
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* Returned Value:
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* Timestamp of the nearest timer event in microseconds.
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*
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****************************************************************************/
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uint64_t esp_hr_timer_get_alarm(void);
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/****************************************************************************
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* Name: esp_hr_timer_calibration
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*
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* Description:
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* Adjust current High Resolution Timer by a certain value.
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*
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* Input Parameters:
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* time_us - Adjustment to apply to the HR Timer in microseconds.
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void esp_hr_timer_calibration(uint64_t time_us);
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/****************************************************************************
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* Name: esp_hr_timer_init
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*
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* Description:
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* Initialize High Resolution Timer.
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*
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* Input Parameters:
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* None.
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*
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* Returned Value:
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* Zero (OK) is returned on success; a negated errno value is returned on
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* any failure.
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*
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****************************************************************************/
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int esp_hr_timer_init(void);
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#ifdef __cplusplus
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}
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#endif
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#undef EXTERN
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#endif /* __ARCH_RISCV_SRC_ESPRESSIF_ESP_HR_TIMER_H */
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@@ -38,6 +38,10 @@
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# include "esp_wdt.h"
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#endif
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#ifdef CONFIG_ESPRESSIF_HR_TIMER
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# include "esp_hr_timer.h"
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#endif
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#include "esp32c3-generic.h"
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/****************************************************************************
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@@ -101,6 +105,14 @@ int esp_bringup(void)
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}
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#endif
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#ifdef CONFIG_ESPRESSIF_HR_TIMER
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ret = esp_hr_timer_init();
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if (ret < 0)
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{
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_err("Failed to initialize HR timer: %d\n", ret);
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}
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#endif
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/* If we got here then perhaps not all initialization was successful, but
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* at least enough succeeded to bring-up NSH with perhaps reduced
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* capabilities.
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@@ -38,6 +38,10 @@
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# include "esp_wdt.h"
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#endif
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#ifdef CONFIG_ESPRESSIF_HR_TIMER
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# include "esp_hr_timer.h"
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#endif
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#include "esp32c6-generic.h"
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/****************************************************************************
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@@ -101,6 +105,14 @@ int esp_bringup(void)
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}
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#endif
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#ifdef CONFIG_ESPRESSIF_HR_TIMER
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ret = esp_hr_timer_init();
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if (ret < 0)
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{
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_err("Failed to initialize HR timer: %d\n", ret);
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}
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#endif
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/* If we got here then perhaps not all initialization was successful, but
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* at least enough succeeded to bring-up NSH with perhaps reduced
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* capabilities.
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@@ -38,6 +38,10 @@
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# include "esp_wdt.h"
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#endif
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#ifdef CONFIG_ESPRESSIF_HR_TIMER
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# include "esp_hr_timer.h"
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#endif
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#include "esp32h2-generic.h"
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/****************************************************************************
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@@ -101,6 +105,14 @@ int esp_bringup(void)
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}
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#endif
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#ifdef CONFIG_ESPRESSIF_HR_TIMER
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ret = esp_hr_timer_init();
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if (ret < 0)
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{
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_err("Failed to initialize HR timer: %d\n", ret);
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}
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#endif
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/* If we got here then perhaps not all initialization was successful, but
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* at least enough succeeded to bring-up NSH with perhaps reduced
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* capabilities.
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