30 /* JEDEC Device ID: Memory type and Capacity */
65 static void w25qxx_lock(struct rt_mtd_nor_device *device)  in w25qxx_lock()  argument
67     struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;  in w25qxx_lock()
71 static void w25qxx_unlock(struct rt_mtd_nor_device *device)  in w25qxx_unlock()  argument
73     struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;  in w25qxx_unlock()
77 static rt_uint8_t w25qxx_read_status(struct rt_mtd_nor_device *device)  in w25qxx_read_status()  argument
79     struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;  in w25qxx_read_status()
83 static void w25qxx_wait_busy(struct rt_mtd_nor_device *device)  in w25qxx_wait_busy()  argument
85     while( w25qxx_read_status(device) & (0x01));  in w25qxx_wait_busy()
88 static rt_err_t w25qxx_read_id(struct rt_mtd_nor_device *device)  in w25qxx_read_id()  argument
93     struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;  in w25qxx_read_id()
95     w25qxx_lock(device);  in w25qxx_read_id()
107     w25qxx_unlock(device);  in w25qxx_read_id()
112 static rt_size_t w25qxx_read(struct rt_mtd_nor_device *device, rt_off_t offset, rt_uint8_t *buffer,…  in w25qxx_read()  argument
114     struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;  in w25qxx_read()
117     if((offset + length) > device->block_end * FLASH_BLOCK_SIZE)  in w25qxx_read()
121     w25qxx_lock(device);  in w25qxx_read()
134     w25qxx_unlock(device);  in w25qxx_read()
138 static rt_size_t w25qxx_write(struct rt_mtd_nor_device *device, rt_off_t offset, const rt_uint8_t *…  in w25qxx_write()  argument
140     struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;  in w25qxx_write()
145     if((offset + length) > device->block_end * FLASH_BLOCK_SIZE)  in w25qxx_write()
148     w25qxx_lock(device);  in w25qxx_write()
152     w25qxx_wait_busy(device); // wait erase done.  in w25qxx_write()
181         w25qxx_wait_busy(device);  in w25qxx_write()
191     w25qxx_unlock(device);  in w25qxx_write()
196 static rt_err_t w25qxx_erase_block(struct rt_mtd_nor_device *device, rt_off_t offset, rt_uint32_t l…  in w25qxx_erase_block()  argument
198     struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;  in w25qxx_erase_block()
206     if((offset + length) > device->block_end * FLASH_BLOCK_SIZE)  in w25qxx_erase_block()
210     if(length %  device->block_size != 0)  in w25qxx_erase_block()
216     w25qxx_lock(device);  in w25qxx_erase_block()
220     w25qxx_wait_busy(device); // wait erase done.  in w25qxx_erase_block()
228         w25qxx_wait_busy(device);    // wait erase done.  in w25qxx_erase_block()
236     w25qxx_unlock(device);  in w25qxx_erase_block()
271         FLASH_TRACE("spi device %s not found!\r\n", spi_device_name);  in w25qxx_mtd_init()
286     /* Init Flash device */  in w25qxx_mtd_init()