add circuitpython code

1 files changed, 49 insertions, 0 deletions

diff --git a/circuitpython/supervisor/spi_flash_api.h b/circuitpython/supervisor/spi_flash_api.h
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+++ b/circuitpython/supervisor/spi_flash_api.h
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+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Scott Shawcroft for Adafruit Industries LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef MICROPY_INCLUDED_SUPERVISOR_SPI_FLASH_H
+#define MICROPY_INCLUDED_SUPERVISOR_SPI_FLASH_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "shared/external_flash/device.h"
+
+#include "shared-bindings/busio/SPI.h"
+
+extern busio_spi_obj_t supervisor_flash_spi_bus; // Used to share SPI bus on some boards
+
+// This API is implemented for both normal SPI peripherals and QSPI peripherals.
+
+bool spi_flash_command(uint8_t command);
+bool spi_flash_read_command(uint8_t command, uint8_t *response, uint32_t length);
+bool spi_flash_write_command(uint8_t command, uint8_t *data, uint32_t length);
+bool spi_flash_sector_command(uint8_t command, uint32_t address);
+bool spi_flash_write_data(uint32_t address, uint8_t *data, uint32_t data_length);
+bool spi_flash_read_data(uint32_t address, uint8_t *data, uint32_t data_length);
+void spi_flash_init(void);
+void spi_flash_init_device(const external_flash_device *device);
+
+#endif  // MICROPY_INCLUDED_SUPERVISOR_SPI_FLASH_H