summaryrefslogtreecommitdiff
path: root/components
diff options
context:
space:
mode:
Diffstat (limited to 'components')
-rw-r--r--components/drivers/spi/SConscript5
-rw-r--r--components/drivers/spi/spi_flash.h10
-rw-r--r--components/drivers/spi/spi_flash_w25qxx_mtd.c328
-rw-r--r--components/drivers/spi/spi_flash_w25qxx_mtd.h34
4 files changed, 376 insertions, 1 deletions
diff --git a/components/drivers/spi/SConscript b/components/drivers/spi/SConscript
index 63d7b9baea..5608bdcab6 100644
--- a/components/drivers/spi/SConscript
+++ b/components/drivers/spi/SConscript
@@ -11,7 +11,10 @@ if GetDepend('RT_USING_SPI_WIFI'):
if GetDepend('RT_USING_W25QXX'):
src_device += ['spi_flash_w25qxx.c']
-
+
+if GetDepend('RT_USING_W25QXX_MTD'):
+ src_device += ['spi_flash_w25qxx_mtd.c']
+
if GetDepend('RT_USING_ENC28J60'):
src_device += ['enc28j60.c']
diff --git a/components/drivers/spi/spi_flash.h b/components/drivers/spi/spi_flash.h
index 61c426b3e3..d4beb57b45 100644
--- a/components/drivers/spi/spi_flash.h
+++ b/components/drivers/spi/spi_flash.h
@@ -36,4 +36,14 @@ struct spi_flash_device
typedef struct spi_flash_device *rt_spi_flash_device_t;
+#ifdef RT_USING_MTD_NOR
+struct spi_flash_mtd
+{
+ struct rt_mtd_nor_device mtd_device;
+ struct rt_spi_device * rt_spi_device;
+ struct rt_mutex lock;
+ void * user_data;
+};
+#endif
+
#endif
diff --git a/components/drivers/spi/spi_flash_w25qxx_mtd.c b/components/drivers/spi/spi_flash_w25qxx_mtd.c
new file mode 100644
index 0000000000..dd3e59f409
--- /dev/null
+++ b/components/drivers/spi/spi_flash_w25qxx_mtd.c
@@ -0,0 +1,328 @@
+#include <rtthread.h>
+#include <rtdevice.h>
+
+#include "spi_flash.h"
+#include "spi_flash_w25qxx_mtd.h"
+
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define FLASH_DEBUG
+
+#ifdef FLASH_DEBUG
+#define FLASH_TRACE printf
+#else
+#define FLASH_TRACE(...)
+#endif /* #ifdef FLASH_DEBUG */
+
+/* JEDEC Manufacturer��s ID */
+#define MF_ID (0xEF)
+/* JEDEC Device ID: Memory type and Capacity */
+#define MTC_W25Q80_BV (0x4014) /* W25Q80BV */
+#define MTC_W25Q16_BV_CL_CV (0x4015) /* W25Q16BV W25Q16CL W25Q16CV */
+#define MTC_W25Q16_DW (0x6015) /* W25Q16DW */
+#define MTC_W25Q32_BV (0x4016) /* W25Q32BV */
+#define MTC_W25Q32_DW (0x6016) /* W25Q32DW */
+#define MTC_W25Q64_BV_CV (0x4017) /* W25Q64BV W25Q64CV */
+#define MTC_W25Q64_DW (0x4017) /* W25Q64DW */
+#define MTC_W25Q128_BV (0x4018) /* W25Q128BV */
+#define MTC_W25Q256_FV (TBD) /* W25Q256FV */
+
+#define MTC_W25X80 (0x3014)
+
+/* command list */
+#define CMD_WRSR (0x01) /* Write Status Register */
+#define CMD_PP (0x02) /* Page Program */
+#define CMD_READ (0x03) /* Read Data */
+#define CMD_WRDI (0x04) /* Write Disable */
+#define CMD_RDSR1 (0x05) /* Read Status Register-1 */
+#define CMD_WREN (0x06) /* Write Enable */
+#define CMD_FAST_READ (0x0B) /* Fast Read */
+#define CMD_ERASE_4K (0x20) /* Sector Erase:4K */
+#define CMD_RDSR2 (0x35) /* Read Status Register-2 */
+#define CMD_ERASE_32K (0x52) /* 32KB Block Erase */
+#define CMD_JEDEC_ID (0x9F) /* Read JEDEC ID */
+#define CMD_ERASE_full (0xC7) /* Chip Erase */
+#define CMD_ERASE_64K (0xD8) /* 64KB Block Erase */
+#define CMD_MANU_ID (0x90)
+
+#define DUMMY (0xFF)
+
+#define FLASH_ERASE_CMD CMD_ERASE_4K
+#define FLASH_BLOCK_SIZE 4096
+#define FLASH_PAGE_SIZE 256
+
+static void w25qxx_lock(struct rt_mtd_nor_device *device)
+{
+ struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;
+ rt_mutex_take(&mtd->lock, RT_WAITING_FOREVER);
+}
+
+static void w25qxx_unlock(struct rt_mtd_nor_device *device)
+{
+ struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;
+ rt_mutex_release(&mtd->lock);
+}
+
+static rt_uint8_t w25qxx_read_status(struct rt_mtd_nor_device *device)
+{
+ struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;
+ return rt_spi_sendrecv8(mtd->rt_spi_device, CMD_RDSR1);
+}
+
+static void w25qxx_wait_busy(struct rt_mtd_nor_device *device)
+{
+ while( w25qxx_read_status(device) & (0x01));
+}
+
+static rt_err_t w25qxx_read_id(struct rt_mtd_nor_device *device)
+{
+ rt_uint8_t cmd;
+ rt_uint8_t id_recv[3];
+
+ struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;
+
+ w25qxx_lock(device);
+
+ cmd = 0xFF; /* reset SPI FLASH, cancel all cmd in processing. */
+ rt_spi_send(mtd->rt_spi_device, &cmd, 1);
+
+ cmd = CMD_WRDI;
+ rt_spi_send(mtd->rt_spi_device, &cmd, 1);
+
+ /* read flash id */
+ cmd = CMD_JEDEC_ID;
+ rt_spi_send_then_recv(mtd->rt_spi_device, &cmd, 1, id_recv, 3);
+
+ w25qxx_unlock(device);
+
+ return (rt_uint32_t)(id_recv[0] << 16) | (id_recv[1] << 8) | id_recv[2];
+}
+
+static rt_size_t w25qxx_read(struct rt_mtd_nor_device *device, rt_off_t offset, rt_uint8_t *buffer, rt_size_t length)
+{
+ struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;
+ rt_uint8_t send_buffer[4];
+
+ if((offset + length) > device->block_end * FLASH_BLOCK_SIZE)
+ return 0;
+
+
+ w25qxx_lock(device);
+
+ send_buffer[0] = CMD_WRDI;
+ rt_spi_send(mtd->rt_spi_device, send_buffer, 1);
+
+ send_buffer[0] = CMD_READ;
+ send_buffer[1] = (rt_uint8_t)(offset>>16);
+ send_buffer[2] = (rt_uint8_t)(offset>>8);
+ send_buffer[3] = (rt_uint8_t)(offset);
+ rt_spi_send_then_recv(mtd->rt_spi_device,
+ send_buffer, 4,
+ buffer, length);
+
+ w25qxx_unlock(device);
+ return length;
+}
+
+static rt_size_t w25qxx_write(struct rt_mtd_nor_device *device, rt_off_t offset, const rt_uint8_t *buffer, rt_size_t length)
+{
+ struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;
+ rt_uint8_t send_buffer[4];
+ rt_uint8_t *write_ptr ;
+ rt_size_t write_size,write_total;
+
+ if((offset + length) > device->block_end * FLASH_BLOCK_SIZE)
+ return 0;
+
+ w25qxx_lock(device);
+
+ send_buffer[0] = CMD_WREN;
+ rt_spi_send(mtd->rt_spi_device, send_buffer, 1);
+ w25qxx_wait_busy(device); // wait erase done.
+
+ write_size = 0;
+ write_total = 0;
+ write_ptr = (rt_uint8_t *)buffer;
+ while(write_total < length)
+ {
+ send_buffer[0] = CMD_WREN;
+ rt_spi_send(mtd->rt_spi_device, send_buffer, 1);
+
+ //write first page...
+ send_buffer[0] = CMD_PP;
+ send_buffer[1] = (rt_uint8_t)(offset >> 16);
+ send_buffer[2] = (rt_uint8_t)(offset >> 8);
+ send_buffer[3] = (rt_uint8_t)(offset);
+
+ //address % FLASH_PAGE_SIZE + length
+ if(((offset & (FLASH_PAGE_SIZE - 1)) + (length - write_total)) > FLASH_PAGE_SIZE)
+ {
+ write_size = FLASH_PAGE_SIZE - (offset & (FLASH_PAGE_SIZE - 1));
+ }
+ else
+ {
+ write_size = (length - write_total);
+ }
+
+ rt_spi_send_then_send(mtd->rt_spi_device,
+ send_buffer, 4,
+ write_ptr + write_total, write_size);
+ w25qxx_wait_busy(device);
+
+
+ offset += write_size;
+ write_total += write_size;
+ }
+
+ send_buffer[0] = CMD_WRDI;
+ rt_spi_send(mtd->rt_spi_device, send_buffer, 1);
+
+ w25qxx_unlock(device);
+
+ return length;
+}
+
+static rt_err_t w25qxx_erase_block(struct rt_mtd_nor_device *device, rt_off_t offset, rt_uint32_t length)
+{
+ struct spi_flash_mtd *mtd = (struct spi_flash_mtd *)device;
+ rt_uint8_t send_buffer[4];
+ rt_uint32_t erase_size = 0;
+
+ //offset must be ALIGN_DOWN to BLOCKSIZE
+ if(offset != RT_ALIGN_DOWN(offset,FLASH_BLOCK_SIZE))
+ return 0;
+
+ if((offset + length) > device->block_end * FLASH_BLOCK_SIZE)
+ return 0;
+
+ /* check length must align to block size */
+ if(length % device->block_size != 0)
+ {
+ rt_kprintf("param length = %d ,error\n",length);
+ return 0;
+ }
+
+ w25qxx_lock(device);
+
+ send_buffer[0] = CMD_WREN;
+ rt_spi_send(mtd->rt_spi_device, send_buffer, 1);
+ w25qxx_wait_busy(device); // wait erase done.
+ while (erase_size < length)
+ {
+ send_buffer[0] = CMD_ERASE_4K;
+ send_buffer[1] = (rt_uint8_t) (offset >> 16);
+ send_buffer[2] = (rt_uint8_t) (offset >> 8);
+ send_buffer[3] = (rt_uint8_t) (offset);
+ rt_spi_send(mtd->rt_spi_device, send_buffer, 4);
+ w25qxx_wait_busy(device); // wait erase done.
+
+ erase_size += 4096;
+ offset += 4096;
+ }
+ send_buffer[0] = CMD_WRDI;
+ rt_spi_send(mtd->rt_spi_device, send_buffer, 1);
+
+ w25qxx_unlock(device);
+ return RT_EOK;
+}
+
+const static struct rt_mtd_nor_driver_ops w25qxx_mtd_ops =
+{
+ w25qxx_read_id,
+ w25qxx_read,
+ w25qxx_write,
+ w25qxx_erase_block,
+};
+
+rt_err_t w25qxx_mtd_init(const char *mtd_name,const char * spi_device_name)
+{
+ rt_err_t result = RT_EOK;
+ rt_uint32_t id;
+ rt_uint8_t send_buffer[3];
+
+ struct rt_spi_device* rt_spi_device;
+ struct spi_flash_mtd* mtd = (struct spi_flash_mtd *)rt_malloc(sizeof(struct spi_flash_mtd));
+
+ RT_ASSERT(mtd != RT_NULL);
+
+ /* initialize mutex */
+ if (rt_mutex_init(&mtd->lock, mtd_name, RT_IPC_FLAG_FIFO) != RT_EOK)
+ {
+ FLASH_TRACE("init mtd lock mutex failed\n");
+ result = -RT_ENOSYS;
+
+ goto _error_exit;
+ }
+
+ rt_spi_device = (struct rt_spi_device *)rt_device_find(spi_device_name);
+ if(rt_spi_device == RT_NULL)
+ {
+ FLASH_TRACE("spi device %s not found!\r\n", spi_device_name);
+ result = -RT_ENOSYS;
+
+ goto _error_exit;
+ }
+ mtd->rt_spi_device = rt_spi_device;
+ /* config spi */
+ {
+ struct rt_spi_configuration cfg;
+ cfg.data_width = 8;
+ cfg.mode = RT_SPI_MODE_0 | RT_SPI_MSB; /* SPI Compatible: Mode 0 and Mode 3 */
+ cfg.max_hz = 20 * 1000 * 1000; /* 20 */
+ rt_spi_configure(rt_spi_device, &cfg);
+ }
+
+ /* Init Flash device */
+ {
+ w25qxx_lock(&mtd->mtd_device);
+
+ send_buffer[0] = CMD_WREN;
+ rt_spi_send(mtd->rt_spi_device, send_buffer, 1);
+ w25qxx_wait_busy(&mtd->mtd_device);
+
+ send_buffer[0] = CMD_WRSR;
+ send_buffer[1] = 0;
+ send_buffer[2] = 0;
+ rt_spi_send(mtd->rt_spi_device, send_buffer, 3);
+ w25qxx_wait_busy(&mtd->mtd_device);
+
+ w25qxx_unlock(&mtd->mtd_device);
+ }
+
+ id = w25qxx_read_id(&mtd->mtd_device);
+
+ mtd->mtd_device.block_size = 4096;
+ mtd->mtd_device.block_start = 0;
+ switch(id & 0xFFFF)
+ {
+ case MTC_W25Q80_BV: /* W25Q80BV */
+ mtd->mtd_device.block_end = 256;
+ break;
+ case MTC_W25Q16_BV_CL_CV: /* W25Q16BV W25Q16CL W25Q16CV */
+ case MTC_W25Q16_DW: /* W25Q16DW */
+ mtd->mtd_device.block_end = 512;
+ break;
+ case MTC_W25Q32_BV: /* W25Q32BV */
+ case MTC_W25Q32_DW: /* W25Q32DW */
+ mtd->mtd_device.block_end = 1024;
+ break;
+ case MTC_W25Q64_BV_CV: /* W25Q64BV W25Q64CV */
+ mtd->mtd_device.block_end = 2048;
+ break;
+ case MTC_W25Q128_BV: /* W25Q128BV */
+ mtd->mtd_device.block_end = 4086;
+ break;
+ }
+ mtd->mtd_device.ops = &w25qxx_mtd_ops;
+ rt_mtd_nor_register_device(mtd_name,&mtd->mtd_device);
+
+ return RT_EOK;
+
+_error_exit:
+ if(mtd != RT_NULL)
+ rt_free(mtd);
+ return result;
+}
diff --git a/components/drivers/spi/spi_flash_w25qxx_mtd.h b/components/drivers/spi/spi_flash_w25qxx_mtd.h
new file mode 100644
index 0000000000..9157524673
--- /dev/null
+++ b/components/drivers/spi/spi_flash_w25qxx_mtd.h
@@ -0,0 +1,34 @@
+/*
+ * File : spi_flash_w25qxx.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2011, RT-Thread Development Team
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2011-12-16 aozima the first version
+ * 2012-08-23 aozima add flash lock.
+ * 2017-02-11 urey add mtd fucntion
+ */
+
+#ifndef SPI_FLASH_W25QXX_H_INCLUDED
+#define SPI_FLASH_W25QXX_H_INCLUDED
+
+#include <rtthread.h>
+
+extern rt_err_t w25qxx_mtd_init(const char *mtd_name,const char * spi_device_name);
+
+#endif // SPI_FLASH_W25QXX_H_INCLUDED
generated by cgit v1.3.1 (git 2.54.0) at 2026-10-30 17:23:52 +0000