acassis commented on a change in pull request #3126: URL: https://github.com/apache/incubator-nuttx/pull/3126#discussion_r599875550
########## File path: arch/risc-v/src/esp32c3/esp32c3_spiflash.h ########## @@ -0,0 +1,251 @@ +/**************************************************************************** + * arch/risc-v/src/esp32c3/esp32c3_spiflash.h + * + * 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_RISCV_SRC_ESP32C3_ESP32C3_SPIFLASH_H +#define __ARCH_RISCV_SRC_ESP32C3_ESP32C3_SPIFLASH_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sys/types.h> +#include <stdint.h> +#include <nuttx/mtd/mtd.h> + +#ifndef __ASSEMBLY__ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Name: esp32c3_spiflash_mtd + * + * Description: + * Get ESP32-C3 SPI Flash MTD. + * + * Input Parameters: + * None + * + * Returned Value: + * ESP32-C3 SPI Flash MTD pointer. + * + ****************************************************************************/ + +struct mtd_dev_s *esp32c3_spiflash_mtd(void); + +/**************************************************************************** + * Name: esp32c3_spiflash_alloc_mtdpart + * + * Description: + * Alloc ESP32-C3 SPI Flash MTD + * + * Input Parameters: + * None + * + * Returned Value: + * ESP32-C3 SPI Flash MTD data pointer if success or NULL if fail + * + ****************************************************************************/ + +FAR struct mtd_dev_s *esp32c3_spiflash_alloc_mtdpart(void); + +/**************************************************************************** + * Name: esp32c3_spiflash_encrypt_mtd + * + * Description: + * Get ESP32-C3 SPI Flash encryption MTD. + * + * Input Parameters: + * None + * + * Returned Value: + * ESP32-C3 SPI Flash encryption MTD pointer. + * + ****************************************************************************/ + +struct mtd_dev_s *esp32c3_spiflash_encrypt_mtd(void); + +/**************************************************************************** + * Name: spi_flash_write_encrypted + * + * Description: + * Write data encrypted to Flash. + * + * Flash encryption must be enabled for this function to work. + * + * Flash encryption must be enabled when calling this function. + * If flash encryption is disabled, the function returns + * ESP_ERR_INVALID_STATE. Use esp_flash_encryption_enabled() + * function to determine if flash encryption is enabled. + * + * Both dest_addr and size must be multiples of 16 bytes. For + * absolute best performance, both dest_addr and size arguments should + * be multiples of 32 bytes. + * + * Input Parameters: + * dest_addr - Destination address in Flash. Must be a multiple of 16 + * bytes. + * src - Pointer to the source buffer. + * size - Length of data, in bytes. Must be a multiple of 16 bytes. + * + * Returned Values: + * Zero (OK) is returned or a negative error. + * + ****************************************************************************/ + +int spi_flash_write_encrypted(uint32_t dest_addr, const void *src, Review comment: This is a ROM function, it is provided by boards/risc-v/esp32c3/esp32c3-devkit/scripts/esp32c3_rom.ld -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
