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https://github.com/espressif/esp-idf.git
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d3b54ec84a
During coredump, dangerous-area-checking should be disabled, and cache disabling should be replaced by a safer version. Dangerous-area-checking used to be in the HAL, but it seems to be more fit to os functions. So it's moved to os functions. Interfaces are provided to switch between os functions during coredump.
89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "spi_flash_defs.h"
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#include "memspi_host_driver.h"
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#include "string.h"
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#include "esp_log.h"
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#include "cache_utils.h"
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#include "esp_flash_partitions.h"
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static const char TAG[] = "memspi";
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static const spi_flash_host_driver_t esp_flash_default_host = ESP_FLASH_DEFAULT_HOST_DRIVER();
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esp_err_t memspi_host_init_pointers(spi_flash_host_driver_t *host, memspi_host_data_t *data, const memspi_host_config_t *cfg)
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{
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memcpy(host, &esp_flash_default_host, sizeof(spi_flash_host_driver_t));
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esp_err_t err = spi_flash_hal_init(data, cfg);
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if (err != ESP_OK) {
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return err;
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}
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host->driver_data = data;
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//some functions are not required if not SPI1
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if (data->spi != &SPI1) {
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host->flush_cache = NULL;
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}
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return ESP_OK;
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}
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esp_err_t memspi_host_read_id_hs(spi_flash_host_driver_t *chip_drv, uint32_t *id)
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{
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//NOTE: we do have a read id function, however it doesn't work in high freq
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spi_flash_trans_t t = {
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.command = CMD_RDID,
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.mosi_data = 0,
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.mosi_len = 0,
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.miso_len = 24
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};
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chip_drv->common_command(chip_drv, &t);
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uint32_t raw_flash_id = t.miso_data[0];
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ESP_EARLY_LOGV(TAG, "raw_chip_id: %X\n", raw_flash_id);
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if (raw_flash_id == 0xFFFFFF || raw_flash_id == 0) {
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ESP_EARLY_LOGE(TAG, "no response\n");
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return ESP_ERR_FLASH_NO_RESPONSE;
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}
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// Byte swap the flash id as it's usually written the other way around
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uint8_t mfg_id = raw_flash_id & 0xFF;
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uint16_t flash_id = (raw_flash_id >> 16) | (raw_flash_id & 0xFF00);
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*id = ((uint32_t)mfg_id << 16) | flash_id;
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ESP_EARLY_LOGV(TAG, "chip_id: %X\n", *id);
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return ESP_OK;
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}
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esp_err_t memspi_host_read_status_hs(spi_flash_host_driver_t *driver, uint8_t *out_sr)
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{
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//NOTE: we do have a read id function, however it doesn't work in high freq
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spi_flash_trans_t t = {
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.command = CMD_RDSR,
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.mosi_data = 0,
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.mosi_len = 0,
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.miso_len = 8
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};
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esp_err_t err = driver->common_command(driver, &t);
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if (err != ESP_OK) {
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return err;
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}
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*out_sr = t.miso_data[0];
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return ESP_OK;
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}
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esp_err_t memspi_host_flush_cache(spi_flash_host_driver_t* driver, uint32_t addr, uint32_t size)
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{
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if (((memspi_host_data_t*)(driver->driver_data))->spi == &SPI1) {
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spi_flash_check_and_flush_cache(addr, size);
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}
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return ESP_OK;
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} |