mirror of
https://github.com/apache/nuttx.git
synced 2026-08-01 20:28:58 +00:00
7b590f9c43
Replace the ESP-specific rmtchar upper-half with arch-local esp_lirc adapters for Xtensa and RISC-V. This moves the RMT upper-half out of drivers/rmt, registers LIRC devices from the ESP board bring-up paths, and removes the old common rmtchar driver and headers. Also update the ESP Kconfig and build wiring to build esp_lirc when ESP_RMT and DRIVERS_RC are enabled. Fixes discovered during hardware validation: - register TX as /dev/lirc1 so RX and TX do not collide - parse the RX worker thread argument from the correct argv slot - keep RX devices from advertising TX capability Signed-off-by: Piyush Patle <piyushpatle228@gmail.com>
141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/****************************************************************************
|
|
* arch/xtensa/src/common/espressif/esp_rmt.h
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __ARCH_XTENSA_SRC_COMMON_ESPRESSIF_ESP_RMT_NEW_H
|
|
#define __ARCH_XTENSA_SRC_COMMON_ESPRESSIF_ESP_RMT_NEW_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <semaphore.h>
|
|
#include <sys/types.h>
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <nuttx/circbuf.h>
|
|
#include <nuttx/spinlock.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
#define RMT_MEM_ITEM_NUM SOC_RMT_MEM_WORDS_PER_CHANNEL
|
|
|
|
#define RMT_DEFAULT_CLK_DIV 1
|
|
|
|
/* Channel can work during APB clock scaling */
|
|
|
|
#define RMT_CHANNEL_FLAGS_AWARE_DFS (1 << 0)
|
|
|
|
/* Invert RMT signal */
|
|
|
|
#define RMT_CHANNEL_FLAGS_INVERT_SIG (1 << 1)
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/* The RMT peripheral vtable */
|
|
|
|
struct rmt_dev_s;
|
|
|
|
struct rmt_ops_s
|
|
{
|
|
CODE int (*open)(FAR struct rmt_dev_s *dev);
|
|
CODE int (*close)(FAR struct rmt_dev_s *dev);
|
|
CODE ssize_t (*write)(FAR struct rmt_dev_s *dev,
|
|
FAR const char *buffer,
|
|
size_t buflen);
|
|
CODE ssize_t (*read)(FAR struct rmt_dev_s *dev,
|
|
FAR char *buffer,
|
|
size_t buflen);
|
|
};
|
|
|
|
/* RMT device structure — initial fields visible to upper-half drivers.
|
|
* The ESP lower-half extends this with hardware-specific fields.
|
|
*/
|
|
|
|
struct rmt_dev_s
|
|
{
|
|
FAR const struct rmt_ops_s *ops;
|
|
FAR struct circbuf_s *circbuf;
|
|
sem_t *recvsem;
|
|
int minor;
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#ifndef __ASSEMBLY__
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions Prototypes
|
|
****************************************************************************/
|
|
|
|
#if defined(CONFIG_ESP_RMT)
|
|
|
|
/****************************************************************************
|
|
* Name: esp_rmt_rx_init
|
|
*
|
|
* Description:
|
|
* Initialize the selected RMT device in RX mode
|
|
*
|
|
* Input Parameters:
|
|
* rx_pin - The pin used for the RX channel
|
|
*
|
|
* Returned Value:
|
|
* Valid RMT device structure reference on success; NULL, otherwise.
|
|
*
|
|
****************************************************************************/
|
|
|
|
struct rmt_dev_s *esp_rmt_rx_init(int rx_pin);
|
|
|
|
/****************************************************************************
|
|
* Name: esp_rmt_tx_init
|
|
*
|
|
* Description:
|
|
* Initialize the selected RMT device in TX mode
|
|
*
|
|
* Input Parameters:
|
|
* tx_pin - The pin used for the TX channel
|
|
*
|
|
* Returned Value:
|
|
* Valid RMT device structure reference on success; NULL, otherwise.
|
|
*
|
|
****************************************************************************/
|
|
|
|
struct rmt_dev_s *esp_rmt_tx_init(int tx_pin);
|
|
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* __ARCH_XTENSA_SRC_COMMON_ESPRESSIF_ESP_RMT_NEW_H */
|