feat(spi_flash): Refactor SPI flash for saving IRAM

components/spi_flash/include/priv/esp_spi_flash_raw.h

@@ -0,0 +1,71 @@
+// Copyright 2018-2019 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed 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.
+
+#pragma once
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include "esp_err.h"
+
+#include "esp8266/rom_functions.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum GD25Q32C_status {
+    GD25Q32C_STATUS1=0,
+    GD25Q32C_STATUS2,
+    GD25Q32C_STATUS3,
+};
+
+typedef enum {
+    SPI_TX   = 0x1,
+    SPI_RX   = 0x2,
+    SPI_WRSR = 0x4,
+    SPI_RAW  = 0x8,  /*!< No wait spi idle and no read status */
+} spi_cmd_dir_t;
+
+typedef struct {
+    uint16_t cmd;
+    uint8_t cmd_len;
+    uint32_t *addr;
+    uint8_t addr_len;
+    uint32_t *data;
+    uint8_t data_len;
+    uint8_t dummy_bits;
+} spi_cmd_t;
+
+bool spi_user_cmd_raw(esp_spi_flash_chip_t *chip, spi_cmd_dir_t mode, spi_cmd_t *p_cmd);
+
+uint32_t spi_flash_get_id_raw(esp_spi_flash_chip_t *chip);
+
+esp_err_t spi_flash_enable_qmode_raw(esp_spi_flash_chip_t *chip);
+
+esp_err_t spi_flash_read_status_raw(esp_spi_flash_chip_t *chip, uint32_t *status);
+
+esp_err_t spi_flash_write_status_raw(esp_spi_flash_chip_t *chip, uint32_t status_value);
+
+esp_err_t spi_flash_read_raw(esp_spi_flash_chip_t *chip, size_t src_addr, void *dest, size_t size);
+
+esp_err_t spi_flash_write_raw(esp_spi_flash_chip_t *chip, size_t dest_addr, const void *src, size_t size);
+
+esp_err_t spi_flash_erase_sector_raw(esp_spi_flash_chip_t *chip, size_t sec, size_t sec_size);
+
+void spi_flash_switch_to_qio_raw(void);
+
+#ifdef __cplusplus
+}
+#endif