142 lines
5.4 KiB
C
142 lines
5.4 KiB
C
/****************************************************************************
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* arch/risc-v/src/esp32c3-legacy/esp32c3_tim.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_ESP32C3_LEGACY_ESP32C3_TIM_H
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#define __ARCH_RISCV_SRC_ESP32C3_LEGACY_ESP32C3_TIM_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 <nuttx/irq.h>
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#include <stdint.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Helpers ******************************************************************/
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#define ESP32C3_TIM_START(d) ((d)->ops->start(d))
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#define ESP32C3_TIM_STOP(d) ((d)->ops->stop(d))
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#define ESP32C3_TIM_CLEAR(d) ((d)->ops->clear(d))
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#define ESP32C3_TIM_SETMODE(d, m) ((d)->ops->setmode(d, m))
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#define ESP32C3_TIM_CLK_SRC(d, s) ((d)->ops->setclksrc(d, s))
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#define ESP32C3_TIM_SETPRE(d, p) ((d)->ops->setpre(d, p))
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#define ESP32C3_TIM_GETCTR(d, v) ((d)->ops->getcounter(d, v))
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#define ESP32C3_TIM_SETCTR(d, v) ((d)->ops->setcounter(d, v))
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#define ESP32C3_TIM_RLD_NOW(d) ((d)->ops->reloadnow(d))
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#define ESP32C3_TIM_GETALRVL(d, v) ((d)->ops->getalarmvalue(d, v))
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#define ESP32C3_TIM_SETALRVL(d, v) ((d)->ops->setalarmvalue(d, v))
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#define ESP32C3_TIM_SETALRM(d, e) ((d)->ops->setalarm(d, e))
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#define ESP32C3_TIM_SETARLD(d, e) ((d)->ops->setautoreload(d, e))
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#define ESP32C3_TIM_SETISR(d, hnd, arg) ((d)->ops->setisr(d, hnd, arg))
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#define ESP32C3_TIM_ENABLEINT(d) ((d)->ops->enableint(d))
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#define ESP32C3_TIM_DISABLEINT(d) ((d)->ops->disableint(d))
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#define ESP32C3_TIM_ACKINT(d) ((d)->ops->ackint(d))
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#define ESP32C3_TIM_CHECKINT(d) ((d)->ops->checkint(d))
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Instances of Timer */
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enum esp32c3_tim_inst_e
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{
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ESP32C3_TIMER0 = 0, /* Timer 0 from Timer Group 0 */
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ESP32C3_TIMER1, /* Timer 0 from Timer Group 1 */
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ESP32C3_SYSTIM, /* SYSTIMER 1 */
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};
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/* Timer mode */
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enum esp32c3_tim_clksrc_e
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{
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ESP32C3_TIM_APB_CLK,
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ESP32C3_TIM_XTAL_CLK,
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};
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/* Timer mode */
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enum esp32c3_tim_mode_e
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{
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ESP32C3_TIM_MODE_DOWN,
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ESP32C3_TIM_MODE_UP,
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};
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/* ESP32-C3 TIM device */
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struct esp32c3_tim_dev_s
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{
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struct esp32c3_tim_ops_s *ops;
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};
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/* ESP32-C3 TIM ops */
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/* This is a struct containing the pointers to the timer operations */
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struct esp32c3_tim_ops_s
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{
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/* Timer tasks */
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void (*start)(struct esp32c3_tim_dev_s *dev);
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void (*stop)(struct esp32c3_tim_dev_s *dev);
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void (*clear)(struct esp32c3_tim_dev_s *dev);
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/* Timer operations */
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void (*setmode)(struct esp32c3_tim_dev_s *dev,
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enum esp32c3_tim_mode_e mode);
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void (*setclksrc)(struct esp32c3_tim_dev_s *dev,
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enum esp32c3_tim_clksrc_e src);
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void (*setpre)(struct esp32c3_tim_dev_s *dev, uint16_t pre);
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void (*getcounter)(struct esp32c3_tim_dev_s *dev,
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uint64_t *value);
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void (*setcounter)(struct esp32c3_tim_dev_s *dev, uint64_t value);
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void (*reloadnow)(struct esp32c3_tim_dev_s *dev);
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void (*getalarmvalue)(struct esp32c3_tim_dev_s *dev,
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uint64_t *value);
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void (*setalarmvalue)(struct esp32c3_tim_dev_s *dev,
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uint64_t value);
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void (*setalarm)(struct esp32c3_tim_dev_s *dev, bool enable);
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void (*setautoreload)(struct esp32c3_tim_dev_s *dev, bool enable);
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/* Timer interrupts */
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int (*setisr)(struct esp32c3_tim_dev_s *dev, xcpt_t handler,
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void * arg);
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void (*enableint)(struct esp32c3_tim_dev_s *dev);
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void (*disableint)(struct esp32c3_tim_dev_s *dev);
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void (*ackint)(struct esp32c3_tim_dev_s *dev);
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int (*checkint)(struct esp32c3_tim_dev_s *dev);
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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struct esp32c3_tim_dev_s *esp32c3_tim_init(int timer);
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void esp32c3_tim_deinit(struct esp32c3_tim_dev_s *dev);
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#endif /* __ARCH_RISCV_SRC_ESP32C3_LEGACY_ESP32C3_TIM_H */
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