mirror of
https://github.com/espressif/esp-idf.git
synced 2026-04-27 19:13:21 +00:00
Xiao Xufeng
3411286544
This commit reorganizes SPI flash header files to better reflect their visibility and intended usage: 1. Rename `esp_flash_port/` to `esp_flash_chips/`: - Better reflects that these headers are for chip driver implementations - All chip driver headers moved to `esp_flash_chips/` directory - Added README.md explaining semi-public nature of these headers 2. Move internal headers to `esp_private/`: - `esp_flash_internal.h` -> `esp_private/esp_flash_internal.h` - `memspi_host_driver.h` -> `esp_private/memspi_host_driver.h` 3. Move chip driver related headers to `esp_flash_chips/`: - `esp_private/esp_flash_types.h` -> `esp_flash_chips/esp_flash_types.h` - `spi_flash/spi_flash_defs.h` -> `esp_flash_chips/spi_flash_defs.h` - `spi_flash_override.h` -> `esp_flash_chips/spi_flash_override.h` - All `spi_flash_chip_*.h` headers moved to `esp_flash_chips/` 4. Code improvements: - Remove unused includes (e.g., `spi_flash_override.h` from `cache_utils.c`) - Use public API `esp_flash_get_size()` instead of direct member access - Add `esp_flash_is_quad_mode` to linker.lf for IRAM placement 5. Documentation updates: - Add README.md in `esp_flash_chips/` explaining semi-public headers - Update programming guide with warnings about internal headers - Update both English and Chinese documentation 6. Update all references across the codebase: - Update includes in `spi_flash` component - Update `bootloader_support`, `app_update`, `esp_tee`, `espcoredump` - Update example projects Breaking changes: - Headers moved to new locations require include path updates - `custom_flash_driver` example temporarily disabled until external components are updated
104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2026 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdlib.h>
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#include "esp_flash_chips/spi_flash_defs.h"
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#include "esp_flash_chips/spi_flash_chip_generic.h"
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#include "esp_flash_chips/spi_flash_chip_issi.h"
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/* Driver for ISSI flash chip, as used in ESP32 D2WD */
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esp_err_t spi_flash_chip_issi_probe(esp_flash_t *chip, uint32_t flash_id)
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{
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/* Check manufacturer and product IDs match our desired masks */
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const uint8_t MFG_ID = 0x9D;
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if (flash_id >> 16 != MFG_ID) {
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return ESP_ERR_NOT_FOUND;
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}
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const uint16_t FLASH_ID_MASK = 0xCF00;
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const uint16_t FLASH_ID_VALUE = 0x4000;
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if ((flash_id & FLASH_ID_MASK) != FLASH_ID_VALUE) {
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return ESP_ERR_NOT_FOUND;
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}
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return ESP_OK;
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}
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esp_err_t spi_flash_chip_issi_set_io_mode(esp_flash_t *chip)
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{
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/* ISSI uses bit 6 of "basic" SR as Quad Enable */
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const uint8_t BIT_QE = 1 << 6;
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return spi_flash_common_set_io_mode(chip,
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spi_flash_common_write_status_8b_wrsr,
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spi_flash_common_read_status_8b_rdsr,
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BIT_QE);
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}
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esp_err_t spi_flash_chip_issi_get_io_mode(esp_flash_t *chip, esp_flash_io_mode_t* out_io_mode)
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{
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/* ISSI uses bit 6 of "basic" SR as Quad Enable */
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const uint8_t BIT_QE = 1 << 6;
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uint32_t sr;
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esp_err_t ret = spi_flash_common_read_status_8b_rdsr(chip, &sr);
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if (ret == ESP_OK) {
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*out_io_mode = ((sr & BIT_QE)? SPI_FLASH_QOUT: 0);
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}
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return ret;
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}
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spi_flash_caps_t spi_flash_chip_issi_get_caps(esp_flash_t *chip)
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{
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spi_flash_caps_t caps_flags = 0;
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// 32-bit-address flash is not supported
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// flash-suspend is not supported
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// flash read unique id.
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caps_flags |= SPI_FLASH_CHIP_CAP_UNIQUE_ID;
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return caps_flags;
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}
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static const char chip_name[] = "issi";
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// The issi chip can use the functions for generic chips except from set read mode and probe,
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// So we only replace these two functions.
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const spi_flash_chip_t esp_flash_chip_issi = {
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.name = chip_name,
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.timeout = &spi_flash_chip_generic_timeout,
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.probe = spi_flash_chip_issi_probe,
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.reset = spi_flash_chip_generic_reset,
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.detect_size = spi_flash_chip_generic_detect_size,
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.erase_chip = spi_flash_chip_generic_erase_chip,
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.erase_sector = spi_flash_chip_generic_erase_sector,
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.erase_block = spi_flash_chip_generic_erase_block,
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.sector_size = 4 * 1024,
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.block_erase_size = 64 * 1024,
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.get_chip_write_protect = spi_flash_chip_generic_get_write_protect,
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.set_chip_write_protect = spi_flash_chip_generic_set_write_protect,
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.num_protectable_regions = 0,
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.protectable_regions = NULL,
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.get_protected_regions = NULL,
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.set_protected_regions = NULL,
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.read = spi_flash_chip_generic_read,
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.write = spi_flash_chip_generic_write,
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.program_page = spi_flash_chip_generic_page_program,
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.page_size = 256,
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.write_encrypted = spi_flash_chip_generic_write_encrypted,
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.wait_idle = spi_flash_chip_generic_wait_idle,
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.set_io_mode = spi_flash_chip_issi_set_io_mode,
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.get_io_mode = spi_flash_chip_issi_get_io_mode,
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.read_reg = spi_flash_chip_generic_read_reg,
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.yield = spi_flash_chip_generic_yield,
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.sus_setup = spi_flash_chip_generic_suspend_cmd_conf,
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.read_unique_id = spi_flash_chip_generic_read_unique_id,
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.get_chip_caps = spi_flash_chip_issi_get_caps,
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.config_host_io_mode = spi_flash_chip_generic_config_host_io_mode,
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};
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