1 files changed, 88 insertions, 0 deletions
diff --git a/libiot/hal/w25qxx.h b/libiot/hal/w25qxx.h
new file mode 100644
index 0000000..5ae32ca
--- /dev/null
+++ b/libiot/hal/w25qxx.h
@@ -0,0 +1,88 @@
+/* Copyright 2018 Canaan Inc.
+ *
+ * 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.
+ */
+#ifndef _W25QXX_H
+#define _W25QXX_H
+#include <stdint.h>
+
+/* clang-format off */
+#define WORK_TRANS_MODE SPI_FF_STANDARD
+/* #define WORK_TRANS_MODE SPI_FF_DUAL */
+/* #define WORK_TRANS_MODE SPI_FF_QUAD */
+
+#define CHIP_SELECT                         1
+#define WAIT_CYCLE                          8
+#define FRAME_LENGTH                        8
+#define INSTRUCTION_LENGTH                  8
+#define ADDRESS_LENGTH                      24
+
+#define SPI_SLAVE_SELECT                    (0x01)
+
+#define w25qxx_FLASH_PAGE_SIZE              256
+#define w25qxx_FLASH_SECTOR_SIZE            4096
+#define w25qxx_FLASH_PAGE_NUM_PER_SECTOR    16
+#define w25qxx_FLASH_CHIP_SIZE              (16777216 UL)
+
+#define WRITE_ENABLE                        0x06
+#define WRITE_DISABLE                       0x04
+#define READ_REG1                           0x05
+#define READ_REG2                           0x35
+#define READ_REG3                           0x15
+#define WRITE_REG1                          0x01
+#define WRITE_REG2                          0x31
+#define WRITE_REG3                          0x11
+#define READ_DATA                           0x03
+#define FAST_READ                           0x0B
+#define FAST_READ_DUAL_OUTPUT               0x3B
+#define FAST_READ_QUAL_OUTPUT               0x6B
+#define FAST_READ_DUAL_IO                   0xBB
+#define FAST_READ_QUAL_IO                   0xEB
+#define DUAL_READ_RESET                     0xFFFF
+#define QUAL_READ_RESET                     0xFF
+#define PAGE_PROGRAM                        0x02
+#define QUAD_PAGE_PROGRAM                   0x32
+#define SECTOR_ERASE                        0x20
+#define BLOCK_32K_ERASE                     0x52
+#define BLOCK_64K_ERASE                     0xD8
+#define CHIP_ERASE                          0x60
+#define READ_ID                             0x90
+#define ENABLE_QPI                          0x38
+#define EXIT_QPI                            0xFF
+#define ENABLE_RESET                        0x66
+#define RESET_DEVICE                        0x99
+
+#define REG1_BUSY_MASK                      0x01
+#define REG2_QUAL_MASK                      0x02
+
+#define LETOBE(x)     ((x >> 24) | ((x & 0x00FF0000) >> 8) | ((x & 0x0000FF00) << 8) | (x << 24))
+/* clang-format on */
+
+/**
+ * @brief      w25qxx operating status enumerate
+ */
+enum w25qxx_status_t
+{
+    W25QXX_OK = 0,
+    W25QXX_BUSY,
+    W25QXX_ERROR,
+};
+
+enum w25qxx_status_t w25qxx_init(uintptr_t spi_in);
+enum w25qxx_status_t w25qxx_write_data(uint32_t addr, uint8_t* data_buf, uint32_t length);
+enum w25qxx_status_t w25qxx_read_data(uint32_t addr, uint8_t* data_buf, uint32_t length);
+
+enum w25qxx_status_t w25qxx_sector_erase(uint32_t addr);
+
+#endif
+