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Merge pull request #671 from armink/master 

[DeviceDrivers] 增加使用 SFUD 库作为 SPI Flash 设备的芯片级驱动
This commit is contained in:
Bernard Xiong 2016-10-10 16:50:30 +08:00 committed by GitHub
parent b8739a1363 1d71f58350
commit 3339591735
12 changed files with 2808 additions and 0 deletions
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6
components/drivers/spi/SConscript
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@ -24,6 +24,12 @@ if GetDepend('RT_USING_SST25VFXX'):
if GetDepend('RT_USING_GD'): if GetDepend('RT_USING_GD'):
src_device += ['spi_flash_gd.c'] src_device += ['spi_flash_gd.c']
if GetDepend('RT_USING_SFUD'):
src_device += ['spi_flash_sfud.c', 'sfud/src/sfud.c']
CPPPATH += [cwd + '/sfud/inc']
if GetDepend('RT_SFUD_USING_SFDP'):
src_device += ['sfud/src/sfud_sfdp.c']
src += src_device src += src_device
group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_SPI'], CPPPATH = CPPPATH) group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_SPI'], CPPPATH = CPPPATH)

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components/drivers/spi/sfud/LICENSE Normal file
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The MIT License (MIT)
Copyright (c) 2016 Armink (armink.ztl@gmail.com)
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.

235
components/drivers/spi/sfud/README.md Normal file
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# SFUD (Serial Flash Universal Driver) 串行 Flash 通用驱动库
---
## 0、SFUD 是什么
[SFUD](https://github.com/armink/SFUD) 是一款开源的串行 SPI Flash 通用驱动库。由于现有市面的串行 Flash 种类居多，各个 Flash 的规格及命令存在差异， SFUD 就是为了解决这些 Flash 的差异现状而设计，让我们的产品能够支持不同品牌及规格的 Flash，提高了涉及到 Flash 功能的软件的可重用性及可扩展性，同时也可以规避 Flash 缺货或停产给产品所带来的风险。
- 主要特点：面向对象（同时支持多个 Flash 对象）、可灵活裁剪、扩展性强、支持 4 字节地址
- 资源占用
- 标准占用：RAM:0.2KB ROM:5.5KB
- 最小占用：RAM:0.1KB ROM:3.6KB
- 设计思路：这里要首先跟大家介绍一个标准： **SFDP** ，它是 JEDEC （固态技术协会）制定的串行 Flash 功能的参数表标准，最新版 V1.6B （[点击这里查看](https://www.jedec.org/standards-documents/docs/jesd216b)）。该标准规定了，每个 Flash 中会存在一个参数表，该表中会存放 Flash 容量、写粗粒度、擦除命令、地址模式等 Flash 规格参数。目前，除了部分厂家旧款 Flash 型号会不支持该标准，其他绝大多数新出厂的 Flash 均已支持 SFDP 标准。所以该库在初始化时会优先读取 SFDP 表参数，如果该 Flash 不支持 SFDP，则查询配置文件 ( `/sfud/inc/sfud_flash_def.h` ) 中提供的 **Flash 参数信息表** 中是否支持该款 Flash。如果不支持，则可以在配置文件中添加该款 Flash 的参数信息（添加方法详细见 [2.5 添加库目前不支持的 Flash](#25-添加库目前不支持的-flash)）。获取到了 Flash 的规格参数后，就可以实现对 Flash 的全部操作。
## 1、为什么选择 SFUD
- 避免项目因 Flash 缺货、Flash 停产或产品扩容而带来的风险；
- 越来越多的项目将固件存储到串行 Flash 中，例如：ESP8266 的固件、主板中的 BIOS 及其他常见电子产品中的固件等等，但是各种 Flash 规格及命令不统一。使用 SFUD 即可避免，在相同功能的软件平台基础下，无法适配不同 Flash 种类的硬件平台的问题，提高软件的可重用性；
- 简化软件流程，降低开发难度。现在只需要配置好 SPI 通信，即可畅快的开始玩串行 Flash 了；
- 可以用来制作 Flash 编程器/烧写器
## 2、SFUD 如何使用
### 2.1 已支持 Flash
下表为所有在 Demo 平台上进行过真机测试的 Flash。目前 SFUD 提供的 **Flash 参数信息表** 只包括下表中 **不支持** SFDP 标准的 Flash，其他不支持 SFDP 标准的 Flash 需要大家以后 **共同来完善和维护** **([Github](https://github.com/armink/SFUD)|[OSChina](http://git.oschina.net/armink/SFUD)|[Coding](https://coding.net/u/armink/p/SFUD/git))** 。如果觉得这个开源项目很赞，可以点击 [项目主页](https://github.com/armink/SFUD) 右上角的 **Star** ，同时把它推荐给更多有需要的朋友。
|型号|制造商|容量|最高速度|SFDP|备注|
|:--:|:----:|:--:|:--:|:--:|:--:|
|[W25Q40BV](http://microchip.ua/esp8266/W25Q40BV(EOL).pdf)|Winbond|4Mb|50Mhz|不支持|已停产|
|[W25Q80DV](http://www.winbond.com/resource-files/w25q80dv_revg_07212015.pdf)|Winbond|8Mb|104Mhz|支持||
|[W25Q16CV](http://www.winbond.com/resource-files/da00-w25q16cvf1.pdf)|Winbond|16Mb|104Mhz|支持||
|[W25Q32BV](http://www.winbond.com/resource-files/w25q32bv_revi_100413_wo_automotive.pdf)|Winbond|32Mb|104Mhz|支持||
|[W25Q64CV](http://www.winbond.com/resource-files/w25q64cv_revh_052214[2].pdf)|Winbond|64Mb|80Mhz|支持||
|[W25Q128BV](http://www.winbond.com/resource-files/w25q128bv_revh_100313_wo_automotive.pdf)|Winbond|128Mb|104Mhz|支持||
|[W25Q256FV](http://www.winbond.com/resource-files/w25q256fv%20revi%2002262016%20kms.pdf)|Winbond|256Mb|104Mhz|支持||
|[MX25L3206E](http://www.macronix.com/Lists/DataSheet/Attachments/3199/MX25L3206E,%203V,%2032Mb,%20v1.5.pdf)|Macronix|32Mb|86MHz|支持||
|[KH25L3206E](http://www.macronix.com.hk/Lists/Datasheet/Attachments/131/KH25L3206E.pdf)|Macronix|32Mb|86Mhz|支持||
|[SST25VF016B](http://ww1.microchip.com/downloads/en/DeviceDoc/20005044C.pdf)|Microchip|16Mb|50MHz|不支持| SST 已被 Microchip 收购|
|[M25P32](https://www.micron.com/~/media/documents/products/data-sheet/nor-flash/serial-nor/m25p/m25p32.pdf)|Micron|32Mb|75Mhz|不支持||
|[EN25Q32B](http://www.kean.com.au/oshw/WR703N/teardown/EN25Q32B%2032Mbit%20SPI%20Flash.pdf)|EON|32Mb|104MHz|不支持||
|[GD25Q64B](http://www.gigadevice.com/product/download/24.html)|GigaDevice|64Mb|120Mhz|不支持||
|[S25FL216K](http://www.cypress.com/file/197346/download)|Cypress|16Mb|65Mhz|不支持||
|[S25FL164K](http://www.cypress.com/file/196886/download)|Cypress|64Mb|108Mhz|支持||
|[A25LQ64](http://www.amictechnology.com/datasheets/A25LQ64.pdf)|AMIC|64Mb|104Mhz|支持||
|[A25L080](http://www.amictechnology.com/datasheets/A25L080.pdf)|AMIC|8Mb|100Mhz|不支持||
|[F25L004](http://www.esmt.com.tw/db/manager/upload/f25l004.pdf)|ESMT|4Mb|100Mhz|不支持||
|[PCT25VF016B](http://pctgroup.com.tw/attachments/files/files/248_25VF016B-P.pdf)|PCT|16Mb|80Mhz|不支持|SST 授权许可，会被识别为 SST25VF016B|
|[AT45DB161E](http://www.adestotech.com/wp-content/uploads/doc8782.pdf)|ADESTO|16Mb|85MHz|不支持|ADESTO 收购 Atmel 串行闪存产品线|
### 2.2 API 说明
#### 2.2.1 初始化 SFUD 库
```C
sfud_err sfud_init(void)
```
#### 2.2.2 获取 Flash 设备对象
在 SFUD 配置文件中会定义 Flash 设备表，负责存放所有将要使用的 Flash 设备对象，所以 SFUD 支持多个 Flash 设备同时驱动。设备表的配置在 `/sfud/inc/sfud_cfg.h` 中 `SFUD_FLASH_DEVICE_TABLE` 宏定义，详细配置方法参照 [2.3 配置方法 Flash](#23-配置方法)）。本方法通过 Flash 设备位于设备表中索引值来返回 Flash 设备对象，超出设备表范围返回 `NULL` 。
```C
sfud_flash *sfud_get_device(size_t index)
```
|参数 |描述|
|:----- |:----|
|index |Flash 设备位于 FLash 设备表中的索引值|
#### 2.2.3 获取 Flash 设备总数
返回 Flash 设备表的总长度。
```C
size_t sfud_get_device_num(void)
```
#### 2.2.4 获取 Flash 设备表
```C
const sfud_flash *sfud_get_device_table(void)
```
#### 2.2.5 读取 Flash 数据
```C
sfud_err sfud_read(const sfud_flash *flash, uint32_t addr, size_t size, uint8_t *data)
```
|参数 |描述|
|:----- |:----|
|flash |Flash 设备对象|
|addr |起始地址|
|size |读取数据的大小|
|data |读取到的数据|
#### 2.2.6 擦除 Flash 数据
```C
sfud_err sfud_erase(const sfud_flash *flash, uint32_t addr, size_t size)
```
|参数 |描述|
|:----- |:----|
|flash |Flash 设备对象|
|addr |起始地址|
|size |擦除数据的大小|
#### 2.2.7 擦除 Flash 全部数据
```C
sfud_err sfud_chip_erase(const sfud_flash *flash)
```
|参数 |描述|
|:----- |:----|
|flash |Flash 设备对象|
#### 2.2.8 往 Flash 写数据
```C
sfud_err sfud_write(const sfud_flash *flash, uint32_t addr, size_t size, const uint8_t *data)
```
|参数 |描述|
|:----- |:----|
|flash |Flash 设备对象|
|addr |起始地址|
|size |写数据的大小|
|data |待写入的数据|
#### 2.2.9 先擦除再往 Flash 写数据
```C
sfud_err sfud_erase_write(const sfud_flash *flash, uint32_t addr, size_t size, const uint8_t *data)
```
|参数 |描述|
|:----- |:----|
|flash |Flash 设备对象|
|addr |起始地址|
|size |写数据的大小|
|data |待写入的数据|
#### 2.2.10 读取 Flash 状态
```C
sfud_err sfud_read_status(const sfud_flash *flash, uint8_t *status)
```
|参数 |描述|
|:----- |:----|
|flash |Flash 设备对象|
|status |当前状态寄存器值|
#### 2.2.11 写（修改） Flash 状态
```C
sfud_err sfud_write_status(const sfud_flash *flash, bool is_volatile, uint8_t status)
```
|参数 |描述|
|:----- |:----|
|flash |Flash 设备对象|
|is_volatile |是否为易闪失的，true: 易闪失的，及断电后会丢失|
|status |当前状态寄存器值|
### 2.3 配置方法
所有配置位于 `/sfud/inc/sfud_cfg.h` ，请参考下面的配置介绍，选择适合自己项目的配置。
#### 2.3.1 调试模式
打开/关闭 `SFUD_DEBUG_MODE` 宏定义
#### 2.3.2 是否使用 SFDP 参数功能
打开/关闭 `SFUD_USING_SFDP` 宏定义
> 注意：关闭后只会查询该库在 `/sfud/inc/sfud_flash_def.h` 中提供的 Flash 信息表。这样虽然会降低软件的适配性，但减少代码量。
#### 2.3.3 是否使用该库自带的 Flash 参数信息表
打开/关闭 `SFUD_USING_FLASH_INFO_TABLE` 宏定义
> 注意：关闭后该库只驱动支持 SFDP 规范的 Flash，也会适当的降低部分代码量。另外 2.3.2 及 2.3.3 这两个宏定义至少定义一种，也可以两种方式都选择。
#### 2.3.4 Flash 设备表
主要修改 `SFUD_FLASH_DEVICE_TABLE` 这个宏定义，示例如下：
```C
enum {
SFUD_W25Q64CV_DEVICE_INDEX = 0,
SFUD_GD25Q64B_DEVICE_INDEX = 1,
};
#define SFUD_FLASH_DEVICE_TABLE \
{ \
[SFUD_W25Q64CV_DEVICE_INDEX] = {.name = "W25Q64CV", .spi.name = "SPI1"}, \
[SFUD_GD25Q64B_DEVICE_INDEX] = {.name = "GD25Q64B", .spi.name = "SPI3"}, \
}
```
上面定义了两个 Flash 设备（大部分产品一个足以），两个设备的名称为 `"W25Q64CV"` 及 `"GD25Q64B"` ，分别对应 `"SPI1"` 及 `"SPI3"` 这两个 SPI 设备名称（在移植 SPI 接口时会用到，位于 `/sfud/port/sfud_port.c` ）， `SFUD_W25Q16CV_DEVICE_INDEX` 与 `SFUD_GD25Q64B_DEVICE_INDEX` 这两个枚举定义了两个设备位于设备表中的索引，可以通过 `sfud_get_device_table()` 方法获取到设备表，再配合这个索引值来访问指定的设备。
### 2.4 移植说明
移植文件位于 `/sfud/port/sfud_port.c` ，文件中的 `sfud_err sfud_spi_port_init(sfud_flash *flash)` 方法是库提供的移植方法，在里面完成各个设备 SPI 读写驱动（必选）、重试次数（必选）、重试接口（可选）及 SPI 锁（可选）的配置。更加详细的移植内容，可以参考 demo 中的各个平台的移植文件。
### 2.5 添加库目前不支持的 Flash
这里需要修改 `/sfud/inc/sfdu_flash_def.h` ，所有已经支持的 Flash 见 `SFUD_FLASH_CHIP_TABLE` 宏定义，需要提前准备的 Flash 参数内容分别为：| 名称 | 制造商 ID | 类型 ID | 容量 ID | 容量 | 写模式 | 擦除粗粒度（擦除的最小单位） | 擦除粗粒度对应的命令 | 。这里以添加 兆易创新 ( GigaDevice ) 的 `GD25Q64B` Flash 来举例。
此款 Flash 为兆易创新的早期生产的型号，所以不支持 SFDP 标准。首先需要下载其数据手册，找到 0x9F 命令返回的 3 种 ID， 这里需要最后面两字节 ID ，即 `type id` 及 `capacity id` 。 `GD25Q64B` 对应这两个 ID 分别为 `0x40` 及 `0x17` 。上面要求的其他 Flash 参数都可以在数据手册中找到，这里要重点说明下 **写模式** 这个参数，库本身提供的写模式共计有 4 种，详见文件顶部的 `sfud_write_mode` 枚举类型，同一款 Flash 可以同时支持多种写模式，视情况而定。对于 `GD25Q64B` 而言，其支持的写模式应该为 `SFUD_WM_PAGE_256B` ，即写 1-256 字节每页。结合上述 `GD25Q64B` 的 Flash 参数应如下：
```
{"GD25Q64B", SFUD_MF_ID_GIGADEVICE, 0x40, 0x17, 8*1024*1024, SFUD_WM_PAGE_256B, 4096, 0x20},
```
再将其增加到 `SFUD_FLASH_CHIP_TABLE` 宏定义末尾，即可完成该库对 `GD25Q64B` 的支持。
### 2.6 Demo
目前已支持如下平台下的 Demo
|路径 |平台描述|
|:----- |:----|
|[/demo/stm32f10x_non_os](https://github.com/armink/SFUD/tree/master/demo/stm32f10x_non_os) |STM32F10X 裸机平台|
|[/demo/stm32f2xx_rtt](https://github.com/armink/SFUD/tree/master/demo/stm32f2xx_rtt) |STM32F2XX + [RT-Thread](http://www.rt-thread.org/) 操作系统平台|
### 2.7 许可
采用 MIT 开源协议，细节请阅读项目中的 LICENSE 文件内容。

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/*
* This file is part of the Serial Flash Universal Driver Library.
*
* Copyright (c) 2016, Armink, <armink.ztl@gmail.com>
*
* 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.
*
* Function: It is an head file for this library. You can see all of the functions which can be called by user.
* Created on: 2016-04-23
*/
#ifndef _SFUD_H_
#define _SFUD_H_
#include "sfud_def.h"
#ifdef __cplusplus
extern "C" {
#endif
/* ../src/sfup.c */
/**
* SFUD library initialize.
*
* @return result
*/
sfud_err sfud_init(void);
/**
* get flash device by its index which in the flash information table
*
* @param index the index which in the flash information table @see flash_table
*
* @return flash device
*/
sfud_flash *sfud_get_device(size_t index);
/**
* get flash device total number on flash device information table @see flash_table
*
* @return flash device total number
*/
size_t sfud_get_device_num(void);
/**
* get flash device information table @see flash_table
*
* @return flash device table pointer
*/
const sfud_flash *sfud_get_device_table(void);
/**
* read flash data
*
* @param flash flash device
* @param addr start address
* @param size read size
* @param data read data pointer
*
* @return result
*/
sfud_err sfud_read(const sfud_flash *flash, uint32_t addr, size_t size, uint8_t *data);
/**
* erase flash data
*
* @note It will erase align by erase granularity.
*
* @param flash flash device
* @param addr start address
* @param size erase size
*
* @return result
*/
sfud_err sfud_erase(const sfud_flash *flash, uint32_t addr, size_t size);
/**
* write flash data (no erase operate)
*
* @param flash flash device
* @param addr start address
* @param data write data
* @param size write size
*
* @return result
*/
sfud_err sfud_write(const sfud_flash *flash, uint32_t addr, size_t size, const uint8_t *data);
/**
* erase and write flash data
*
* @param flash flash device
* @param addr start address
* @param size write size
* @param data write data
*
* @return result
*/
sfud_err sfud_erase_write(const sfud_flash *flash, uint32_t addr, size_t size, const uint8_t *data);
/**
* erase all flash data
*
* @param flash flash device
*
* @return result
*/
sfud_err sfud_chip_erase(const sfud_flash *flash);
/**
* read flash register status
*
* @param flash flash device
* @param status register status
*
* @return result
*/
sfud_err sfud_read_status(const sfud_flash *flash, uint8_t *status);
/**
* write status register
*
* @param flash flash device
* @param is_volatile true: volatile mode, false: non-volatile mode
* @param status register status
*
* @return result
*/
sfud_err sfud_write_status(const sfud_flash *flash, bool is_volatile, uint8_t status);
#ifdef __cplusplus
}
#endif
#endif /* _SFUD_H_ */

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/*
* This file is part of the Serial Flash Universal Driver Library.
*
* Copyright (c) 2016, Armink, <armink.ztl@gmail.com>
*
* 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.
*
* Function: It is the configure head file for this library.
* Created on: 2016-04-23
*/
#ifndef _SFUD_CFG_H_
#define _SFUD_CFG_H_
#include <rtconfig.h>
/**
* It will print more information on debug mode.
* #define RT_DEBUG_SFUD 1: open debug mode */
#if RT_DEBUG_SFUD
#define SFUD_DEBUG_MODE
#endif
/**
* Using probe flash JEDEC SFDP parameter.
*/
#ifdef RT_SFUD_USING_SFDP
#define SFUD_USING_SFDP
#endif
/**
* Using probe flash JEDEC ID then query defined supported flash chip information table. @see SFUD_FLASH_CHIP_TABLE
*/
#ifdef RT_SFUD_USING_FLASH_INFO_TABLE
#define SFUD_USING_FLASH_INFO_TABLE
#endif
#if !defined(RT_SFUD_USING_SFDP) && !defined(RT_SFUD_USING_FLASH_INFO_TABLE)
#error "Please configure RT_SFUD_USING_SFDP or RT_SFUD_USING_FLASH_INFO_TABLE at least one kind of mode (in rtconfig.h)."
#endif
#define SFUD_FLASH_DEVICE_TABLE NULL
#endif /* _SFUD_CFG_H_ */

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/*
* This file is part of the Serial Flash Universal Driver Library.
*
* Copyright (c) 2016, Armink, <armink.ztl@gmail.com>
*
* 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.
*
* Function: It is the macro definition head file for this library.
* Created on: 2016-04-23
*/
#ifndef _SFUD_DEF_H_
#define _SFUD_DEF_H_
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <sfud_cfg.h>
#include "sfud_flash_def.h"
#ifdef __cplusplus
extern "C" {
#endif
/* debug print function. Must be implement by user. */
#ifdef SFUD_DEBUG_MODE
#define SFUD_DEBUG(...) sfud_log_debug(__FILE__, __LINE__, __VA_ARGS__)
#else
#define SFUD_DEBUG(...)
#endif
#define SFUD_INFO(...) sfud_log_info(__VA_ARGS__)
/* assert for developer. */
#ifdef SFUD_DEBUG_MODE
#define SFUD_ASSERT(EXPR) \
if (!(EXPR)) \
{ \
SFUD_DEBUG("(%s) has assert failed at %s.", #EXPR, __FUNCTION__); \
while (1); \
}
#else
#define SFUD_ASSERT(EXPR)
#endif
/**
* retry process
*
* @param delay delay function for every retry. NULL will not delay for every retry.
* @param retry retry counts
* @param result SFUD_ERR_TIMEOUT: retry timeout
*/
#define SFUD_RETRY_PROCESS(delay, retry, result) \
void (*__delay_temp)(void) = (void (*)(void))delay; \
if (retry == 0) {result = SFUD_ERR_TIMEOUT;break;} \
else {if (__delay_temp) {__delay_temp();} retry --;}
/* software version number */
#define SFUD_SW_VERSION "0.10.06"
/*
* all defined supported command
*/
#ifndef SFUD_CMD_WRITE_ENABLE
#define SFUD_CMD_WRITE_ENABLE 0x06
#endif
#ifndef SFUD_CMD_WRITE_DISABLE
#define SFUD_CMD_WRITE_DISABLE 0x04
#endif
#ifndef SFUD_CMD_READ_STATUS_REGISTER
#define SFUD_CMD_READ_STATUS_REGISTER 0x05
#endif
#ifndef SFUD_VOLATILE_SR_WRITE_ENABLE
#define SFUD_VOLATILE_SR_WRITE_ENABLE 0x50
#endif
#ifndef SFUD_CMD_WRITE_STATUS_REGISTER
#define SFUD_CMD_WRITE_STATUS_REGISTER 0x01
#endif
#ifndef SFUD_CMD_PAGE_PROGRAM
#define SFUD_CMD_PAGE_PROGRAM 0x02
#endif
#ifndef SFUD_CMD_AAI_WORD_PROGRAM
#define SFUD_CMD_AAI_WORD_PROGRAM 0xAD
#endif
#ifndef SFUD_CMD_ERASE_CHIP
#define SFUD_CMD_ERASE_CHIP 0xC7
#endif
#ifndef SFUD_CMD_READ_DATA
#define SFUD_CMD_READ_DATA 0x03
#endif
#ifndef SFUD_CMD_MANUFACTURER_DEVICE_ID
#define SFUD_CMD_MANUFACTURER_DEVICE_ID 0x90
#endif
#ifndef SFUD_CMD_JEDEC_ID
#define SFUD_CMD_JEDEC_ID 0x9F
#endif
#ifndef SFUD_CMD_READ_UNIQUE_ID
#define SFUD_CMD_READ_UNIQUE_ID 0x4B
#endif
#ifndef SFUD_CMD_READ_SFDP_REGISTER
#define SFUD_CMD_READ_SFDP_REGISTER 0x5A
#endif
#ifndef SFUD_CMD_ENABLE_RESET
#define SFUD_CMD_ENABLE_RESET 0x66
#endif
#ifndef SFUD_CMD_RESET
#define SFUD_CMD_RESET 0x99
#endif
#ifndef SFUD_CMD_ENTER_4B_ADDRESS_MODE
#define SFUD_CMD_ENTER_4B_ADDRESS_MODE 0xB7
#endif
#ifndef SFUD_CMD_EXIT_4B_ADDRESS_MODE
#define SFUD_CMD_EXIT_4B_ADDRESS_MODE 0xE9
#endif
#ifndef SFUD_WRITE_MAX_PAGE_SIZE
#define SFUD_WRITE_MAX_PAGE_SIZE 256
#endif
/* send dummy data for read data */
#ifndef SFUD_DUMMY_DATA
#define SFUD_DUMMY_DATA 0xFF
#endif
/* maximum number of erase type support on JESD216 (V1.0) */
#define SFUD_SFDP_ERASE_TYPE_MAX_NUM 4
/**
* status register bits
*/
enum {
SFUD_STATUS_REGISTER_BUSY = (1 << 0), /**< busing */
SFUD_STATUS_REGISTER_WEL = (1 << 1), /**< write enable latch */
SFUD_STATUS_REGISTER_SRP = (1 << 7), /**< status register protect */
};
/**
* error code
*/
typedef enum {
SFUD_SUCCESS = 0, /**< success */
SFUD_ERR_NOT_FOUND = 1, /**< not found or not supported */
SFUD_ERR_WRITE = 2, /**< write error */
SFUD_ERR_READ = 3, /**< read error */
SFUD_ERR_TIMEOUT = 4, /**< timeout error */
SFUD_ERR_ADDR_OUT_OF_BOUND = 5, /**< address is out of flash bound */
} sfud_err;
/* SPI bus write read data function type */
typedef sfud_err (*spi_write_read_func)(const uint8_t *write_buf, size_t write_size, uint8_t *read_buf, size_t read_size);
#ifdef SFUD_USING_SFDP
/**
* the SFDP (Serial Flash Discoverable Parameters) parameter info which used on this library
*/
typedef struct {
bool available; /**< available when read SFDP OK */
uint8_t major_rev; /**< SFDP Major Revision */
uint8_t minor_rev; /**< SFDP Minor Revision */
uint16_t write_gran; /**< write granularity (bytes) */
uint8_t erase_4k; /**< 4 kilobyte erase is supported throughout the device */
uint8_t erase_4k_cmd; /**< 4 Kilobyte erase command */
bool sr_is_non_vola; /**< status register is supports non-volatile */
uint8_t vola_sr_we_cmd; /**< volatile status register write enable command */
bool addr_3_byte; /**< supports 3-Byte addressing */
bool addr_4_byte; /**< supports 4-Byte addressing */
uint32_t capacity; /**< flash capacity (bytes) */
struct {
uint32_t size; /**< erase sector size (bytes). 0x00: not available */
uint8_t cmd; /**< erase command */
} eraser[SFUD_SFDP_ERASE_TYPE_MAX_NUM]; /**< supported eraser types table */
//TODO lots of fast read-related stuff (like modes supported and number of wait states/dummy cycles needed in each)
} sfud_sfdp, *sfud_sfdp_t;
#endif
/**
* SPI device
*/
typedef struct __sfud_spi {
/* SPI device name */
char *name;
/* SPI bus write read data function */
sfud_err (*wr)(const struct __sfud_spi *spi, const uint8_t *write_buf, size_t write_size, uint8_t *read_buf,
size_t read_size);
/* lock SPI bus */
void (*lock)(const struct __sfud_spi *spi);
/* unlock SPI bus */
void (*unlock)(const struct __sfud_spi *spi);
/* some user data */
void *user_data;
} sfud_spi, *sfud_spi_t;
/**
* serial flash device
*/
typedef struct {
char *name; /**< serial flash name */
size_t index; /**< index of flash device information table @see flash_table */
sfud_flash_chip chip; /**< flash chip information */
sfud_spi spi; /**< SPI device */
bool init_ok; /**< initialize OK flag */
bool addr_in_4_byte; /**< flash is in 4-Byte addressing */
struct {
void (*delay)(void); /**< every retry's delay */
size_t times; /**< default times for error retry */
} retry;
void *user_data; /**< some user data */
#ifdef SFUD_USING_SFDP
sfud_sfdp sfdp; /**< serial flash discoverable parameters by JEDEC standard */
#endif
} sfud_flash, *sfud_flash_t;
#ifdef __cplusplus
}
#endif
#endif /* _SFUD_DEF_H_ */

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/*
* This file is part of the Serial Flash Universal Driver Library.
*
* Copyright (c) 2016, Armink, <armink.ztl@gmail.com>
*
* 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.
*
* Function: It is the flash types and specification macro definition head file for this library.
* Created on: 2016-06-09
*/
#ifndef _SFUD_FLASH_DEF_H_
#define _SFUD_FLASH_DEF_H_
#include <stdint.h>
#include <sfud_cfg.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* flash program(write) data mode
*/
enum sfud_write_mode {
SFUD_WM_PAGE_256B = 1 << 0, /**< write 1 to 256 bytes per page */
SFUD_WM_BYTE = 1 << 1, /**< byte write */
SFUD_WM_AAI = 1 << 2, /**< auto address increment */
SFUD_WM_DUAL_BUFFER = 1 << 3, /**< dual-buffer write, like AT45DB series */
};
/* manufacturer information */
typedef struct {
char *name;
uint8_t id;
} sfud_mf;
/* flash chip information */
typedef struct {
char *name; /**< flash chip name */
uint8_t mf_id; /**< manufacturer ID */
uint8_t type_id; /**< memory type ID */
uint8_t capacity_id; /**< capacity ID */
uint32_t capacity; /**< flash capacity (bytes) */
uint16_t write_mode; /**< write mode @see sfud_write_mode */
uint32_t erase_gran; /**< erase granularity (bytes) */
uint8_t erase_gran_cmd; /**< erase granularity size block command */
} sfud_flash_chip;
/* SFUD support manufacturer JEDEC ID */
#define SFUD_MF_ID_CYPRESS 0x01
#define SFUD_MF_ID_FUJITSU 0x04
#define SFUD_MF_ID_EON 0x1C
#define SFUD_MF_ID_ATMEL 0x1F
#define SFUD_MF_ID_MICRON 0x20
#define SFUD_MF_ID_AMIC 0x37
#define SFUD_MF_ID_SANYO 0x62
#define SFUD_MF_ID_INTEL 0x89
#define SFUD_MF_ID_ESMT 0x8C
#define SFUD_MF_ID_FUDAN 0xA1
#define SFUD_MF_ID_HYUNDAI 0xAD
#define SFUD_MF_ID_SST 0xBF
#define SFUD_MF_ID_GIGADEVICE 0xC8
#define SFUD_MF_ID_ISSI 0xD5
#define SFUD_MF_ID_WINBOND 0xEF
/* SFUD supported manufacturer information table */
#define SFUD_MF_TABLE \
{ \
{"Cypress", SFUD_MF_ID_CYPRESS}, \
{"Fujitsu", SFUD_MF_ID_FUJITSU}, \
{"EON", SFUD_MF_ID_EON}, \
{"Atmel", SFUD_MF_ID_ATMEL}, \
{"Micron", SFUD_MF_ID_MICRON}, \
{"AMIC", SFUD_MF_ID_AMIC}, \
{"Sanyo", SFUD_MF_ID_SANYO}, \
{"Intel", SFUD_MF_ID_INTEL}, \
{"ESMT", SFUD_MF_ID_ESMT}, \
{"Fudan", SFUD_MF_ID_FUDAN}, \
{"Hyundai", SFUD_MF_ID_HYUNDAI}, \
{"SST", SFUD_MF_ID_SST}, \
{"GigaDevice", SFUD_MF_ID_GIGADEVICE}, \
{"ISSI", SFUD_MF_ID_ISSI}, \
{"Winbond", SFUD_MF_ID_WINBOND}, \
}
#ifdef SFUD_USING_FLASH_INFO_TABLE
/* SFUD supported flash chip information table. If the flash not support JEDEC JESD216 standard,
* then the SFUD will find the flash chip information by this table. Developer can add other flash to here.
* The configuration information name and index reference the sfud_flash_chip structure.
* | name | mf_id | type_id | capacity_id | capacity | write_mode | erase_gran | erase_gran_cmd |
*/
#define SFUD_FLASH_CHIP_TABLE \
{ \
{"AT45DB161E", SFUD_MF_ID_ATMEL, 0x26, 0x00, 2*1024*1024, SFUD_WM_BYTE|SFUD_WM_DUAL_BUFFER, 512, 0x81}, \
{"W25Q40BV", SFUD_MF_ID_WINBOND, 0x40, 0x13, 512*1024, SFUD_WM_PAGE_256B, 4096, 0x20}, \
{"SST25VF016B", SFUD_MF_ID_SST, 0x25, 0x41, 2*1024*1024, SFUD_WM_BYTE|SFUD_WM_AAI, 4096, 0x20}, \
{"M25P32", SFUD_MF_ID_MICRON, 0x20, 0x16, 4*1024*1024, SFUD_WM_PAGE_256B, 64*1024, 0xD8}, \
{"EN25Q32B", SFUD_MF_ID_EON, 0x30, 0x16, 4*1024*1024, SFUD_WM_PAGE_256B, 4096, 0x20}, \
{"GD25Q64B", SFUD_MF_ID_GIGADEVICE, 0x40, 0x17, 8*1024*1024, SFUD_WM_PAGE_256B, 4096, 0x20}, \
{"S25FL216K", SFUD_MF_ID_CYPRESS, 0x40, 0x15, 2*1024*1024, SFUD_WM_PAGE_256B, 4096, 0x20}, \
{"A25L080", SFUD_MF_ID_AMIC, 0x30, 0x14, 1*1024*1024, SFUD_WM_PAGE_256B, 4096, 0x20}, \
{"F25L004", SFUD_MF_ID_ESMT, 0x20, 0x13, 512*1024, SFUD_WM_BYTE|SFUD_WM_AAI, 4096, 0x20}, \
{"PCT25VF016B", SFUD_MF_ID_SST, 0x25, 0x41, 2*1024*1024, SFUD_WM_BYTE|SFUD_WM_AAI, 4096, 0x20}, \
}
#endif /* SFUD_USING_FLASH_INFO_TABLE */
#ifdef __cplusplus
}
#endif
#endif /* _SFUD_FLASH_DEF_H_ */

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/*
* This file is part of the Serial Flash Universal Driver Library.
*
* Copyright (c) 2016, Armink, <armink.ztl@gmail.com>
*
* 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.
*
* Function: serial flash operate functions by SFUD lib.
* Created on: 2016-04-23
*/
#include "../inc/sfud.h"
#include <string.h>
/* send dummy data for read data */
#define DUMMY_DATA 0xFF
#ifndef SFUD_FLASH_DEVICE_TABLE
#error "Please configure the flash device information table in (in sfud_cfg.h)."
#endif
#if !defined(SFUD_USING_SFDP) && !defined(SFUD_USING_FLASH_INFO_TABLE)
#error "Please configure SFUD_USING_SFDP or SFUD_USING_FLASH_INFO_TABLE at least one kind of mode (in sfud_cfg.h)."
#endif
/* user configured flash device information table */
static sfud_flash flash_table[] = SFUD_FLASH_DEVICE_TABLE;
/* supported manufacturer information table */
static const sfud_mf mf_table[] = SFUD_MF_TABLE;
#ifdef SFUD_USING_FLASH_INFO_TABLE
/* supported flash chip information table */
static const sfud_flash_chip flash_chip_table[] = SFUD_FLASH_CHIP_TABLE;
#endif
static sfud_err software_init(const sfud_flash *flash);
static sfud_err hardware_init(sfud_flash *flash);
static sfud_err page256_or_1_byte_write(const sfud_flash *flash, uint32_t addr, size_t size, uint16_t write_gran,
const uint8_t *data);
static sfud_err aai_write(const sfud_flash *flash, uint32_t addr, size_t size, const uint8_t *data);
static sfud_err wait_busy(const sfud_flash *flash);
static sfud_err reset(const sfud_flash *flash);
static sfud_err read_jedec_id(sfud_flash *flash);
static sfud_err set_write_enabled(const sfud_flash *flash, bool enabled);
static sfud_err set_4_byte_address_mode(sfud_flash *flash, bool enabled);
static void make_adress_byte_array(const sfud_flash *flash, uint32_t addr, uint8_t *array);
/* ../port/sfup_port.c */
extern void sfud_log_debug(const char *file, const long line, const char *format, ...);
extern void sfud_log_info(const char *format, ...);
/**
* SFUD initialize by flash device
*
* @param flash flash device
*
* @return result
*/
sfud_err sfud_device_init(sfud_flash *flash) {
sfud_err result = SFUD_SUCCESS;
/* hardware initialize */
result = hardware_init(flash);
if (result == SFUD_SUCCESS) {
result = software_init(flash);
}
if (result == SFUD_SUCCESS) {
flash->init_ok = true;
SFUD_INFO("%s flash device is initialize success.", flash->name);
} else {
flash->init_ok = false;
SFUD_INFO("Error: %s flash device is initialize fail.", flash->name);
}
return result;
}
/**
* SFUD library initialize.
*
* @return result
*/
sfud_err sfud_init(void) {
sfud_err cur_flash_result = SFUD_SUCCESS, all_flash_result = SFUD_SUCCESS;
size_t i;
SFUD_DEBUG("Start initialize Serial Flash Universal Driver(SFUD) V%s.", SFUD_SW_VERSION);
SFUD_DEBUG("You can get the latest version on https://github.com/armink/SFUD .");
/* initialize all flash device in flash device table */
for (i = 0; i < sizeof(flash_table) / sizeof(sfud_flash); i++) {
/* initialize flash device index of flash device information table */
flash_table[i].index = i;
cur_flash_result = sfud_device_init(&flash_table[i]);
if (cur_flash_result != SFUD_SUCCESS) {
cur_flash_result = cur_flash_result;
}
}
return all_flash_result;
}
/**
* get flash device by its index which in the flash information table
*
* @param index the index which in the flash information table @see flash_table
*
* @return flash device
*/
sfud_flash *sfud_get_device(size_t index) {
if (index < sfud_get_device_num()) {
return &flash_table[index];
} else {
return NULL;
}
}
/**
* get flash device total number on flash device information table @see flash_table
*
* @return flash device total number
*/
size_t sfud_get_device_num(void) {
return sizeof(flash_table) / sizeof(sfud_flash);
}
/**
* get flash device information table @see flash_table
*
* @return flash device table pointer
*/
const sfud_flash *sfud_get_device_table(void) {
return flash_table;
}
/**
* hardware initialize
*/
static sfud_err hardware_init(sfud_flash *flash) {
extern sfud_err sfud_spi_port_init(sfud_flash *flash);
sfud_err result = SFUD_SUCCESS;
size_t i;
SFUD_ASSERT(flash);
result = sfud_spi_port_init(flash);
if (result != SFUD_SUCCESS) {
return result;
}
/* SPI write read function must be initialize */
SFUD_ASSERT(flash->spi.wr);
/* if the user don't configure flash chip information then using SFDP parameter or static flash parameter table */
if (flash->chip.capacity == 0 || flash->chip.write_mode == 0 || flash->chip.erase_gran == 0
|| flash->chip.erase_gran_cmd == 0) {
/* read JEDEC ID include manufacturer ID, memory type ID and flash capacity ID */
result = read_jedec_id(flash);
if (result != SFUD_SUCCESS) {
return result;
}
#ifdef SFUD_USING_SFDP
extern bool sfud_read_sfdp(sfud_flash *flash);
/* read SFDP parameters */
if (sfud_read_sfdp(flash)) {
flash->chip.name = NULL;
flash->chip.capacity = flash->sfdp.capacity;
/* only 1 byte or 256 bytes write mode for SFDP */
if (flash->sfdp.write_gran == 1) {
flash->chip.write_mode = SFUD_WM_BYTE;
} else {
flash->chip.write_mode = SFUD_WM_PAGE_256B;
}
/* find the the smallest erase sector size for eraser. then will use this size for erase granularity */
flash->chip.erase_gran = flash->sfdp.eraser[0].size;
flash->chip.erase_gran_cmd = flash->sfdp.eraser[0].cmd;
for (i = 1; i < SFUD_SFDP_ERASE_TYPE_MAX_NUM; i++) {
if (flash->sfdp.eraser[i].size != 0 && flash->chip.erase_gran > flash->sfdp.eraser[i].size) {
flash->chip.erase_gran = flash->sfdp.eraser[i].size;
flash->chip.erase_gran_cmd = flash->sfdp.eraser[i].cmd;
}
}
} else {
#endif
#ifdef SFUD_USING_FLASH_INFO_TABLE
/* read SFDP parameters failed then using SFUD library provided static parameter */
for (i = 0; i < sizeof(flash_chip_table) / sizeof(sfud_flash_chip); i++) {
if ((flash_chip_table[i].mf_id == flash->chip.mf_id)
&& (flash_chip_table[i].type_id == flash->chip.type_id)
&& (flash_chip_table[i].capacity_id == flash->chip.capacity_id)) {
flash->chip.name = flash_chip_table[i].name;
flash->chip.capacity = flash_chip_table[i].capacity;
flash->chip.write_mode = flash_chip_table[i].write_mode;
flash->chip.erase_gran = flash_chip_table[i].erase_gran;
flash->chip.erase_gran_cmd = flash_chip_table[i].erase_gran_cmd;
break;
}
}
#endif
#ifdef SFUD_USING_SFDP
}
#endif
}
if (flash->chip.capacity == 0 || flash->chip.write_mode == 0 || flash->chip.erase_gran == 0
|| flash->chip.erase_gran_cmd == 0) {
SFUD_INFO("Warning: This flash device is not found or not support.");
return SFUD_ERR_NOT_FOUND;
} else {
const char *flash_mf_name = NULL;
/* find the manufacturer information */
for (i = 0; i < sizeof(mf_table) / sizeof(sfud_mf); i++) {
if (mf_table[i].id == flash->chip.mf_id) {
flash_mf_name = mf_table[i].name;
break;
}
}
/* print manufacturer and flash chip name */
if (flash_mf_name && flash->chip.name) {
SFUD_INFO("Find a %s %s flash chip. Size is %ld bytes.", flash_mf_name, flash->chip.name,
flash->chip.capacity);
} else if (flash_mf_name) {
SFUD_INFO("Find a %s flash chip. Size is %ld bytes.", flash_mf_name, flash->chip.capacity);
}
}
/* reset flash device */
result = reset(flash);
if (result != SFUD_SUCCESS) {
return result;
}
/* I found when the flash read mode is supported AAI mode. The flash all blocks is protected,
* so need change the flash status to unprotected before write and erase operate. */
if (flash->chip.write_mode & SFUD_WM_AAI) {
result = sfud_write_status(flash, true, 0x00);
if (result != SFUD_SUCCESS) {
return result;
}
}
/* if the flash is large than 16MB (256Mb) then enter in 4-Byte addressing mode */
if (flash->chip.capacity > (1 << 24)) {
result = set_4_byte_address_mode(flash, true);
} else {
flash->addr_in_4_byte = false;
}
return result;
}
/**
* software initialize
*
* @param flash flash device
*
* @return result
*/
static sfud_err software_init(const sfud_flash *flash) {
sfud_err result = SFUD_SUCCESS;
SFUD_ASSERT(flash);
return result;
}
/**
* read flash data
*
* @param flash flash device
* @param addr start address
* @param size read size
* @param data read data pointer
*
* @return result
*/
sfud_err sfud_read(const sfud_flash *flash, uint32_t addr, size_t size, uint8_t *data) {
sfud_err result = SFUD_SUCCESS;
const sfud_spi *spi = &flash->spi;
uint8_t cmd_data[5], cmd_size;
SFUD_ASSERT(flash);
SFUD_ASSERT(data);
/* must be call this function after initialize OK */
SFUD_ASSERT(flash->init_ok);
/* check the flash address bound */
if (addr + size > flash->chip.capacity) {
SFUD_INFO("Error: Flash address is out of bound.");
return SFUD_ERR_ADDR_OUT_OF_BOUND;
}
/* lock SPI */
if (spi->lock) {
spi->lock(spi);
}
result = wait_busy(flash);
if (result == SFUD_SUCCESS) {
cmd_data[0] = SFUD_CMD_READ_DATA;
make_adress_byte_array(flash, addr, &cmd_data[1]);
cmd_size = flash->addr_in_4_byte ? 5 : 4;
result = spi->wr(spi, cmd_data, cmd_size, data, size);
}
/* unlock SPI */
if (spi->unlock) {
spi->unlock(spi);
}
return result;
}
/**
* erase all flash data
*
* @param flash flash device
*
* @return result
*/
sfud_err sfud_chip_erase(const sfud_flash *flash) {
sfud_err result = SFUD_SUCCESS;
const sfud_spi *spi = &flash->spi;
uint8_t cmd_data[4];
SFUD_ASSERT(flash);
/* must be call this function after initialize OK */
SFUD_ASSERT(flash->init_ok);
/* lock SPI */
if (spi->lock) {
spi->lock(spi);
}
/* set the flash write enable */
result = set_write_enabled(flash, true);
if (result != SFUD_SUCCESS) {
goto exit;
}
cmd_data[0] = SFUD_CMD_ERASE_CHIP;
/* dual-buffer write, like AT45DB series flash chip erase operate is different for other flash */
if (flash->chip.write_mode & SFUD_WM_DUAL_BUFFER) {
cmd_data[1] = 0x94;
cmd_data[2] = 0x80;
cmd_data[3] = 0x9A;
result = spi->wr(spi, cmd_data, 4, NULL, 0);
} else {
result = spi->wr(spi, cmd_data, 1, NULL, 0);
}
if (result != SFUD_SUCCESS) {
SFUD_INFO("Error: Flash chip erase SPI communicate error.");
goto exit;
}
result = wait_busy(flash);
exit:
/* unlock SPI */
if (spi->unlock) {
spi->unlock(spi);
}
return result;
}
/**
* erase flash data
*
* @note It will erase align by erase granularity.
*
* @param flash flash device
* @param addr start address
* @param size erase size
*
* @return result
*/
sfud_err sfud_erase(const sfud_flash *flash, uint32_t addr, size_t size) {
extern size_t sfud_sfdp_get_suitable_eraser(const sfud_flash *flash, uint32_t addr, size_t erase_size);
sfud_err result = SFUD_SUCCESS;
const sfud_spi *spi = &flash->spi;
uint8_t cmd_data[5], cmd_size, cur_erase_cmd;
size_t eraser_index, cur_erase_size;
SFUD_ASSERT(flash);
/* must be call this function after initialize OK */
SFUD_ASSERT(flash->init_ok);
/* check the flash address bound */
if (addr + size > flash->chip.capacity) {
SFUD_INFO("Error: Flash address is out of bound.");
return SFUD_ERR_ADDR_OUT_OF_BOUND;
}
if (addr == 0 && size == flash->chip.capacity) {
return sfud_chip_erase(flash);
}
/* lock SPI */
if (spi->lock) {
spi->lock(spi);
}
/* loop erase operate. erase unit is erase granularity */
while (size) {
/* if this flash is support SFDP parameter, then used SFDP parameter supplies eraser */
#ifdef SFUD_USING_SFDP
if (flash->sfdp.available) {
/* get the suitable eraser for erase process from SFDP parameter */
eraser_index = sfud_sfdp_get_suitable_eraser(flash, addr, size);
cur_erase_cmd = flash->sfdp.eraser[eraser_index].cmd;
cur_erase_size = flash->sfdp.eraser[eraser_index].size;
} else {
#else
{
#endif
cur_erase_cmd = flash->chip.erase_gran_cmd;
cur_erase_size = flash->chip.erase_gran;
}
/* set the flash write enable */
result = set_write_enabled(flash, true);
if (result != SFUD_SUCCESS) {
break;
}
cmd_data[0] = cur_erase_cmd;
make_adress_byte_array(flash, addr, &cmd_data[1]);
cmd_size = flash->addr_in_4_byte ? 5 : 4;
result = spi->wr(spi, cmd_data, cmd_size, NULL, 0);
if (result != SFUD_SUCCESS) {
SFUD_INFO("Error: Flash erase SPI communicate error.");
break;
}
result = wait_busy(flash);
if (result != SFUD_SUCCESS) {
break;
}
/* make erase align and calculate next erase address */
if (addr % cur_erase_size != 0) {
if (size > cur_erase_size - (addr % cur_erase_size)) {
size -= cur_erase_size - (addr % cur_erase_size);
addr += cur_erase_size - (addr % cur_erase_size);
} else {
break;
}
} else {
if (size > cur_erase_size) {
size -= cur_erase_size;
addr += cur_erase_size;
} else {
break;
}
}
}
/* unlock SPI */
if (spi->unlock) {
spi->unlock(spi);
}
return result;
}
/**
* write flash data (no erase operate) for write 1 to 256 bytes per page mode or byte write mode
*
* @param flash flash device
* @param addr start address
* @param size write size
* @param write_gran write granularity bytes, only support 1 or 256
* @param data write data
*
* @return result
*/
static sfud_err page256_or_1_byte_write(const sfud_flash *flash, uint32_t addr, size_t size, uint16_t write_gran,
const uint8_t *data) {
sfud_err result = SFUD_SUCCESS;
const sfud_spi *spi = &flash->spi;
uint8_t cmd_data[5 + SFUD_WRITE_MAX_PAGE_SIZE], cmd_size;
size_t data_size;
SFUD_ASSERT(flash);
/* only support 1 or 256 */
SFUD_ASSERT(write_gran == 1 || write_gran == 256);
/* must be call this function after initialize OK */
SFUD_ASSERT(flash->init_ok);
/* check the flash address bound */
if (addr + size > flash->chip.capacity) {
SFUD_INFO("Error: Flash address is out of bound.");
return SFUD_ERR_ADDR_OUT_OF_BOUND;
}
/* lock SPI */
if (spi->lock) {
spi->lock(spi);
}
/* loop write operate. write unit is write granularity */
while (size) {
/* set the flash write enable */
result = set_write_enabled(flash, true);
if (result != SFUD_SUCCESS) {
break;
}
cmd_data[0] = SFUD_CMD_PAGE_PROGRAM;
make_adress_byte_array(flash, addr, &cmd_data[1]);
cmd_size = flash->addr_in_4_byte ? 5 : 4;
/* make write align and calculate next write address */
if (addr % write_gran != 0) {
if (size > write_gran - (addr % write_gran)) {
data_size = write_gran - (addr % write_gran);
} else {
data_size = size;
}
} else {
if (size > write_gran) {
data_size = write_gran;
} else {
data_size = size;
}
}
size -= data_size;
addr += data_size;
memcpy(&cmd_data[cmd_size], data, data_size);
result = spi->wr(spi, cmd_data, cmd_size + data_size, NULL, 0);
if (result != SFUD_SUCCESS) {
SFUD_INFO("Error: Flash write SPI communicate error.");
break;
}
result = wait_busy(flash);
if (result != SFUD_SUCCESS) {
break;
}
data += data_size;
}
/* unlock SPI */
if (spi->unlock) {
spi->unlock(spi);
}
return result;
}
/**
* write flash data (no erase operate) for auto address increment mode
*
* If the address is odd number, it will place one 0xFF before the start of data for protect the old data.
* If the latest remain size is 1, it will append one 0xFF at the end of data for protect the old data.
*
* @param flash flash device
* @param addr start address
* @param size write size
* @param data write data
*
* @return result
*/
static sfud_err aai_write(const sfud_flash *flash, uint32_t addr, size_t size, const uint8_t *data) {
sfud_err result = SFUD_SUCCESS;
const sfud_spi *spi = &flash->spi;
uint8_t cmd_data[6], cmd_size;
const size_t data_size = 2;
bool first_write = true;
SFUD_ASSERT(flash);
SFUD_ASSERT(size >= 2);
/* must be call this function after initialize OK */
SFUD_ASSERT(flash->init_ok);
/* check the flash address bound */
if (addr + size > flash->chip.capacity) {
SFUD_INFO("Error: Flash address is out of bound.");
return SFUD_ERR_ADDR_OUT_OF_BOUND;
}
/* lock SPI */
if (spi->lock) {
spi->lock(spi);
}
/* set the flash write enable */
result = set_write_enabled(flash, true);
if (result != SFUD_SUCCESS) {
goto exit;
}
/* loop write operate. write unit is write granularity */
cmd_data[0] = SFUD_CMD_AAI_WORD_PROGRAM;
while (size) {
if (first_write) {
make_adress_byte_array(flash, addr, &cmd_data[1]);
cmd_size = flash->addr_in_4_byte ? 5 : 4;
if (addr % 2 == 0) {
cmd_data[cmd_size] = *data;
cmd_data[cmd_size + 1] = *(data + 1);
} else {
cmd_data[cmd_size] = 0xFF;
cmd_data[cmd_size + 1] = *data;
size++;
data--;
}
first_write = false;
} else {
cmd_size = 1;
if (size != 1) {
cmd_data[1] = *data;
cmd_data[2] = *(data + 1);
} else {
cmd_data[1] = *data;
cmd_data[2] = 0xFF;
size++;
}
}
result = spi->wr(spi, cmd_data, cmd_size + data_size, NULL, 0);
if (result != SFUD_SUCCESS) {
SFUD_INFO("Error: Flash write SPI communicate error.");
goto exit;
}
result = wait_busy(flash);
if (result != SFUD_SUCCESS) {
goto exit;
}
size -= 2;
data += data_size;
}
/* set the flash write disable */
result = set_write_enabled(flash, false);
exit:
/* unlock SPI */
if (spi->unlock) {
spi->unlock(spi);
}
return result;
}
/**
* write flash data (no erase operate)
*
* @param flash flash device
* @param addr start address
* @param size write size
* @param data write data
*
* @return result
*/
sfud_err sfud_write(const sfud_flash *flash, uint32_t addr, size_t size, const uint8_t *data) {
sfud_err result = SFUD_SUCCESS;
if (flash->chip.write_mode & SFUD_WM_PAGE_256B) {
result = page256_or_1_byte_write(flash, addr, size, 256, data);
} else if (flash->chip.write_mode & SFUD_WM_AAI) {
result = aai_write(flash, addr, size, data);
} else if (flash->chip.write_mode & SFUD_WM_DUAL_BUFFER) {
//TODO dual-buffer write mode
}
return result;
}
/**
* erase and write flash data
*
* @param flash flash device
* @param addr start address
* @param size write size
* @param data write data
*
* @return result
*/
sfud_err sfud_erase_write(const sfud_flash *flash, uint32_t addr, size_t size, const uint8_t *data) {
sfud_err result = SFUD_SUCCESS;
result = sfud_erase(flash, addr, size);
if (result == SFUD_SUCCESS) {
result = sfud_write(flash, addr, size, data);
}
return result;
}
static sfud_err reset(const sfud_flash *flash) {
sfud_err result = SFUD_SUCCESS;
const sfud_spi *spi = &flash->spi;
uint8_t cmd_data[2];
SFUD_ASSERT(flash);
cmd_data[0] = SFUD_CMD_ENABLE_RESET;
cmd_data[1] = SFUD_CMD_RESET;
result = spi->wr(spi, cmd_data, 2, NULL, 0);
if (result == SFUD_SUCCESS) {
result = wait_busy(flash);
}
if (result == SFUD_SUCCESS) {
SFUD_DEBUG("Flash device reset success.");
} else {
SFUD_INFO("Error: Flash device reset failed.");
}
return result;
}
static sfud_err read_jedec_id(sfud_flash *flash) {
sfud_err result = SFUD_SUCCESS;
const sfud_spi *spi = &flash->spi;
uint8_t cmd_data[1], recv_data[3];
SFUD_ASSERT(flash);
cmd_data[0] = SFUD_CMD_JEDEC_ID;
result = spi->wr(spi, cmd_data, sizeof(cmd_data), recv_data, sizeof(recv_data));
if (result == SFUD_SUCCESS) {
flash->chip.mf_id = recv_data[0];
flash->chip.type_id = recv_data[1];
flash->chip.capacity_id = recv_data[2];
SFUD_DEBUG("The flash device manufacturer ID is 0x%02X, memory type ID is 0x%02X, capacity ID is 0x%02X.",
flash->chip.mf_id, flash->chip.type_id, flash->chip.capacity_id);
} else {
SFUD_INFO("Error: Read flash device JEDEC ID error.");
}
return result;
}
/**
* set the flash write enable or write disable
*
* @param flash flash device
* @param enabled true: enable false: disable
*
* @return result
*/
static sfud_err set_write_enabled(const sfud_flash *flash, bool enabled) {
sfud_err result = SFUD_SUCCESS;
uint8_t cmd, register_status;
SFUD_ASSERT(flash);
if (enabled) {
cmd = SFUD_CMD_WRITE_ENABLE;
} else {
cmd = SFUD_CMD_WRITE_DISABLE;
}
result = flash->spi.wr(&flash->spi, &cmd, 1, NULL, 0);
if (result == SFUD_SUCCESS) {
result = sfud_read_status(flash, &register_status);
}
if (result == SFUD_SUCCESS) {
if (enabled && (register_status & SFUD_STATUS_REGISTER_WEL) == 0) {
SFUD_INFO("Error: Can't enable write status.");
return SFUD_ERR_WRITE;
} else if (!enabled && (register_status & SFUD_STATUS_REGISTER_WEL) == 1) {
SFUD_INFO("Error: Can't disable write status.");
return SFUD_ERR_WRITE;
}
}
return result;
}
/**
* enable or disable 4-Byte addressing for flash
*
* @note The 4-Byte addressing just supported for the flash capacity which is large then 16MB (256Mb).
*
* @param flash flash device
* @param enabled true: enable false: disable
*
* @return result
*/
static sfud_err set_4_byte_address_mode(sfud_flash *flash, bool enabled) {
sfud_err result = SFUD_SUCCESS;
uint8_t cmd;
SFUD_ASSERT(flash);
/* set the flash write enable */
result = set_write_enabled(flash, true);
if (result != SFUD_SUCCESS) {
return result;
}
if (enabled) {
cmd = SFUD_CMD_ENTER_4B_ADDRESS_MODE;
} else {
cmd = SFUD_CMD_EXIT_4B_ADDRESS_MODE;
}
result = flash->spi.wr(&flash->spi, &cmd, 1, NULL, 0);
if (result == SFUD_SUCCESS) {
flash->addr_in_4_byte = enabled ? true : false;
SFUD_DEBUG("%s 4-Byte addressing mode success.", enabled ? "Enter" : "Exit");
} else {
SFUD_INFO("Error: %s 4-Byte addressing mode failed.", enabled ? "Enter" : "Exit");
}
return result;
}
/**
* read flash register status
*
* @param flash flash device
* @param status register status
*
* @return result
*/
sfud_err sfud_read_status(const sfud_flash *flash, uint8_t *status) {
uint8_t cmd = SFUD_CMD_READ_STATUS_REGISTER;
SFUD_ASSERT(flash);
SFUD_ASSERT(status);
return flash->spi.wr(&flash->spi, &cmd, 1, status, 1);
}
static sfud_err wait_busy(const sfud_flash *flash) {
sfud_err result = SFUD_SUCCESS;
uint8_t status;
size_t retry_times = flash->retry.times;
SFUD_ASSERT(flash);
while (true) {
result = sfud_read_status(flash, &status);
if (result == SFUD_SUCCESS && ((status & SFUD_STATUS_REGISTER_BUSY)) == 0) {
break;
}
/* retry counts */
SFUD_RETRY_PROCESS(flash->retry.delay, retry_times, result);
}
if (result != SFUD_SUCCESS || ((status & SFUD_STATUS_REGISTER_BUSY)) != 0) {
SFUD_INFO("Error: Flash wait busy has an error.");
}
return result;
}
static void make_adress_byte_array(const sfud_flash *flash, uint32_t addr, uint8_t *array) {
uint8_t len, i;
SFUD_ASSERT(flash);
SFUD_ASSERT(array);
len = flash->addr_in_4_byte ? 4 : 3;
for (i = 0; i < len; i++) {
array[i] = (addr >> ((len - (i + 1)) * 8)) & 0xFF;
}
}
/**
* write status register
*
* @param flash flash device
* @param is_volatile true: volatile mode, false: non-volatile mode
* @param status register status
*
* @return result
*/
sfud_err sfud_write_status(const sfud_flash *flash, bool is_volatile, uint8_t status) {
sfud_err result = SFUD_SUCCESS;
const sfud_spi *spi = &flash->spi;
uint8_t cmd_data[2];
SFUD_ASSERT(flash);
if (is_volatile) {
cmd_data[0] = SFUD_VOLATILE_SR_WRITE_ENABLE;
result = spi->wr(spi, cmd_data, 1, NULL, 0);
} else {
result = set_write_enabled(flash, true);
}
if (result == SFUD_SUCCESS) {
cmd_data[0] = SFUD_CMD_WRITE_STATUS_REGISTER;
cmd_data[1] = status;
result = spi->wr(spi, cmd_data, 2, NULL, 0);
}
if (result != SFUD_SUCCESS) {
SFUD_INFO("Error: Write_status register failed.");
}
return result;
}

389
components/drivers/spi/sfud/src/sfud_sfdp.c Normal file
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@ -0,0 +1,389 @@
/*
* This file is part of the Serial Flash Universal Driver Library.
*
* Copyright (c) 2016, Armink, <armink.ztl@gmail.com>
*
* 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.
*
* Function: Analyze the SFDP (Serial Flash Discoverable Parameters) which from JESD216/A/B (V1.X) standard.
* JESD216 (V1.0) document: http://www.jedec.org/sites/default/files/docs/JESD216.pdf
* JESD216A (V1.5) document: http://www.jedec.org/sites/default/files/docs/JESD216A.pdf
* JESD216B (V1.6) document: http://www.jedec.org/sites/default/files/docs/JESD216B.pdf
*
* Created on: 2016-05-26
*/
#include "../inc/sfud.h"
/**
* JEDEC Standard JESD216 Terms and definitions:
*
* DWORD: Four consecutive 8-bit bytes used as the basic 32-bit building block for headers and parameter tables.
*
* Sector: The minimum granularity - size and alignment - of an area that can be erased in the data array
* of a flash memory device. Different areas within the address range of the data array may have a different
* minimum erase granularity (sector size).
*/
#ifdef SFUD_USING_SFDP
/* support maximum SFDP major revision by driver */
#define SUPPORT_MAX_SFDP_MAJOR_REV 1
/* the JEDEC basic flash parameter table length is 9 DWORDs (288-bit) on JESD216 (V1.0) initial release standard */
#define BASIC_TABLE_LEN 9
/* the smallest eraser in SFDP eraser table */
#define SMALLEST_ERASER_INDEX 0
/**
* SFDP parameter header structure
*/
typedef struct {
uint8_t id; /**< Parameter ID LSB */
uint8_t minor_rev; /**< Parameter minor revision */
uint8_t major_rev; /**< Parameter major revision */
uint8_t len; /**< Parameter table length(in double words) */
uint32_t ptp; /**< Parameter table 24bit pointer (byte address) */
} sfdp_para_header;
static sfud_err read_sfdp_data(const sfud_flash *flash, uint32_t addr, uint8_t *read_buf, size_t size);
static bool read_sfdp_header(sfud_flash *flash);
static bool read_basic_header(const sfud_flash *flash, sfdp_para_header *basic_header);
static bool read_basic_table(sfud_flash *flash, sfdp_para_header *basic_header);
/* ../port/sfup_port.c */
extern void sfud_log_debug(const char *file, const long line, const char *format, ...);
extern void sfud_log_info(const char *format, ...);
/**
* Read SFDP parameter information
*
* @param flash flash device
*
* @return true: read OK
*/
bool sfud_read_sfdp(sfud_flash *flash) {
SFUD_ASSERT(flash);
/* JEDEC basic flash parameter header */
sfdp_para_header basic_header;
if (read_sfdp_header(flash) && read_basic_header(flash, &basic_header)) {
return read_basic_table(flash, &basic_header);
} else {
SFUD_INFO("Warning: Read SFDP parameter header information failed. The %s is not support JEDEC SFDP.", flash->name);
return false;
}
}
/**
* Read SFDP parameter header
*
* @param flash flash device
*
* @return true: read OK
*/
static bool read_sfdp_header(sfud_flash *flash) {
sfud_sfdp *sfdp = &flash->sfdp;
/* The SFDP header is located at address 000000h of the SFDP data structure.
* It identifies the SFDP Signature, the number of parameter headers, and the SFDP revision numbers. */
/* sfdp parameter header address */
uint32_t header_addr = 0;
/* each parameter header being 2 DWORDs (64-bit) */
uint8_t header[2 * 4] = { 0 };
/* number of parameter headers */
uint8_t npn = 0;
SFUD_ASSERT(flash);
sfdp->available = false;
/* read SFDP header */
if (read_sfdp_data(flash, header_addr, header, sizeof(header)) != SFUD_SUCCESS) {
SFUD_INFO("Error: Can't read SFDP header.");
return false;
}
/* check SFDP header */
if (!(header[0] == 'S' &&
header[1] == 'F' &&
header[2] == 'D' &&
header[3] == 'P')) {
SFUD_INFO("Error: Check SFDP signature error. It's must be 50444653h('S' 'F' 'D' 'P').");
return false;
}
sfdp->minor_rev = header[4];
sfdp->major_rev = header[5];
npn = header[6];
if (sfdp->major_rev > SUPPORT_MAX_SFDP_MAJOR_REV) {
SFUD_INFO("Error: This reversion(V%d.%d) SFDP is not supported.", sfdp->major_rev, sfdp->minor_rev);
return false;
}
SFUD_DEBUG("Check SFDP header is OK. The reversion is V%d.%d, NPN is %d.", sfdp->major_rev, sfdp->minor_rev, npn);
return true;
}
/**
* Read JEDEC basic parameter header
*
* @param flash flash device
*
* @return true: read OK
*/
static bool read_basic_header(const sfud_flash *flash, sfdp_para_header *basic_header) {
/* The basic parameter header is mandatory, is defined by this standard, and starts at byte offset 08h. */
uint32_t header_addr = 8;
/* each parameter header being 2 DWORDs (64-bit) */
uint8_t header[2 * 4] = { 0 };
SFUD_ASSERT(flash);
SFUD_ASSERT(basic_header);
/* read JEDEC basic flash parameter header */
if (read_sfdp_data(flash, header_addr, header, sizeof(header)) != SFUD_SUCCESS) {
SFUD_INFO("Error: Can't read JEDEC basic flash parameter header.");
return false;
}
basic_header->id = header[0];
basic_header->minor_rev = header[1];
basic_header->major_rev = header[2];
basic_header->len = header[3];
basic_header->ptp = header[4] | header[5] << 8 | header[6] << 16;
/* check JEDEC basic flash parameter header */
if (basic_header->major_rev > SUPPORT_MAX_SFDP_MAJOR_REV) {
SFUD_INFO("Error: This reversion(V%d.%d) JEDEC basic flash parameter header is not supported.",
basic_header->major_rev, basic_header->minor_rev);
return false;
}
if (basic_header->len < BASIC_TABLE_LEN) {
SFUD_INFO("Error: The JEDEC basic flash parameter table length (now is %d) error.", basic_header->len);
return false;
}
SFUD_DEBUG("Check JEDEC basic flash parameter header is OK. The table id is %d, reversion is V%d.%d,"
" length is %d, parameter table pointer is 0x%06X.", basic_header->id, basic_header->major_rev,
basic_header->minor_rev, basic_header->len, basic_header->ptp);
return true;
}
/**
* Read JEDEC basic parameter table
*
* @param flash flash device
*
* @return true: read OK
*/
static bool read_basic_table(sfud_flash *flash, sfdp_para_header *basic_header) {
sfud_sfdp *sfdp = &flash->sfdp;
/* parameter table address */
uint32_t table_addr = basic_header->ptp;
/* parameter table */
uint8_t table[BASIC_TABLE_LEN * 4] = { 0 }, i, j;
SFUD_ASSERT(flash);
SFUD_ASSERT(basic_header);
/* read JEDEC basic flash parameter table */
if (read_sfdp_data(flash, table_addr, table, sizeof(table)) != SFUD_SUCCESS) {
SFUD_INFO("Error: Can't read JEDEC basic flash parameter table.");
return false;
}
/* print JEDEC basic flash parameter table info */
SFUD_DEBUG("JEDEC basic flash parameter table info:");
SFUD_DEBUG("MSB-LSB 3 2 1 0");
for (i = 0; i < BASIC_TABLE_LEN; i++) {
SFUD_DEBUG("[%04d] 0x%02X 0x%02X 0x%02X 0x%02X", i + 1, table[i * 4 + 3], table[i * 4 + 2], table[i * 4 + 1],
table[i * 4]);
}
/* get block/sector 4 KB erase supported and command */
sfdp->erase_4k_cmd = table[1];
switch (table[0] & 0x03) {
case 1:
sfdp->erase_4k = true;
SFUD_DEBUG("4 KB Erase is supported throughout the device. Command is 0x%02X.", sfdp->erase_4k_cmd);
break;
case 3:
sfdp->erase_4k = false;
SFUD_DEBUG("Uniform 4 KB erase is unavailable for this device.");
break;
default:
SFUD_INFO("Error: Uniform 4 KB erase supported information error.");
return false;
}
/* get write granularity */
//TODO 目前为 1.0 所提供的方式，后期支持 V1.5 及以上的方式读取 page size
switch ((table[0] & (0x01 << 2)) >> 2) {
case 0:
sfdp->write_gran = 1;
SFUD_DEBUG("Write granularity is 1 byte.");
break;
case 1:
sfdp->write_gran = 256;
SFUD_DEBUG("Write granularity is 64 bytes or larger.");
break;
}
/* volatile status register block protect bits */
switch ((table[0] & (0x01 << 3)) >> 3) {
case 0:
/* Block Protect bits in device's status register are solely non-volatile or may be
* programmed either as volatile using the 50h instruction for write enable or non-volatile
* using the 06h instruction for write enable.
*/
sfdp->sr_is_non_vola = true;
SFUD_DEBUG("Target flash status register is non-volatile.");
break;
case 1:
/* block protect bits in device's status register are solely volatile. */
sfdp->sr_is_non_vola = false;
SFUD_DEBUG("Block Protect bits in device's status register are solely volatile.");
/* write enable instruction select for writing to volatile status register */
switch ((table[0] & (0x01 << 4)) >> 4) {
case 0:
sfdp->vola_sr_we_cmd = SFUD_VOLATILE_SR_WRITE_ENABLE;
SFUD_DEBUG("Flash device requires instruction 50h as the write enable prior "
"to performing a volatile write to the status register.");
break;
case 1:
sfdp->vola_sr_we_cmd = SFUD_CMD_WRITE_ENABLE;
SFUD_DEBUG("Flash device requires instruction 06h as the write enable prior "
"to performing a volatile write to the status register.");
break;
}
break;
}
/* get address bytes, number of bytes used in addressing flash array read, write and erase. */
switch ((table[2] & (0x03 << 1)) >> 1) {
case 0:
sfdp->addr_3_byte = true;
sfdp->addr_4_byte = false;
SFUD_DEBUG("3-Byte only addressing.");
break;
case 1:
sfdp->addr_3_byte = true;
sfdp->addr_4_byte = true;
SFUD_DEBUG("3- or 4-Byte addressing.");
break;
case 2:
sfdp->addr_3_byte = false;
sfdp->addr_4_byte = true;
SFUD_DEBUG("4-Byte only addressing.");
break;
default:
sfdp->addr_3_byte = false;
sfdp->addr_4_byte = false;
SFUD_INFO("Error: Read address bytes error!");
return false;
}
/* get flash memory capacity */
uint32_t table2_temp = (table[7] << 24) | (table[6] << 16) | (table[5] << 8) | table[4];
switch ((table[7] & (0x01 << 7)) >> 7) {
case 0:
sfdp->capacity = 1 + (table2_temp >> 3);
break;
case 1:
table2_temp &= 0x7FFFFFFF;
if (table2_temp > sizeof(sfdp->capacity) * 8 + 3) {
sfdp->capacity = 0;
SFUD_INFO("Error: The flash capacity is grater than 32 Gb/ 4 GB! Not Supported.");
return false;
}
sfdp->capacity = 1 << (table2_temp - 3);
break;
}
SFUD_DEBUG("Capacity is %ld Bytes.", sfdp->capacity);
/* get erase size and erase command */
for (i = 0, j = 0; i < SFUD_SFDP_ERASE_TYPE_MAX_NUM; i++) {
if (table[28 + 2 * i] != 0x00) {
sfdp->eraser[j].size = 1 << table[28 + 2 * i];
sfdp->eraser[j].cmd = table[28 + 2 * i + 1];
SFUD_DEBUG("Flash device supports %ldKB block erase. Command is 0x%02X.", sfdp->eraser[j].size / 1024,
sfdp->eraser[j].cmd);
j++;
}
}
/* sort the eraser size from small to large */
for (i = 0, j = 0; i < SFUD_SFDP_ERASE_TYPE_MAX_NUM; i++) {
if (sfdp->eraser[i].size) {
for (j = i + 1; j < SFUD_SFDP_ERASE_TYPE_MAX_NUM; j++) {
if (sfdp->eraser[j].size != 0 && sfdp->eraser[i].size > sfdp->eraser[j].size) {
/* swap the small eraser */
uint32_t temp_size = sfdp->eraser[i].size;
uint8_t temp_cmd = sfdp->eraser[i].cmd;
sfdp->eraser[i].size = sfdp->eraser[j].size;
sfdp->eraser[i].cmd = sfdp->eraser[j].cmd;
sfdp->eraser[j].size = temp_size;
sfdp->eraser[j].cmd = temp_cmd;
}
}
}
}
sfdp->available = true;
return true;
}
static sfud_err read_sfdp_data(const sfud_flash *flash, uint32_t addr, uint8_t *read_buf, size_t size) {
uint8_t cmd[] = {
SFUD_CMD_READ_SFDP_REGISTER,
(addr >> 16) & 0xFF,
(addr >> 8) & 0xFF,
(addr >> 0) & 0xFF,
SFUD_DUMMY_DATA,
};
SFUD_ASSERT(flash);
SFUD_ASSERT(addr < 1 << 24);
SFUD_ASSERT(read_buf);
SFUD_ASSERT(flash->spi.wr);
return flash->spi.wr(&flash->spi, cmd, sizeof(cmd), read_buf, size);
}
/**
* get the most suitable eraser for erase process from SFDP parameter
*
* @param flash flash device
* @param addr start address
* @param erase_size will be erased size
*
* @return the eraser index of SFDP eraser table @see sfud_sfdp.eraser[]
*/
size_t sfud_sfdp_get_suitable_eraser(const sfud_flash *flash, uint32_t addr, size_t erase_size) {
size_t index = SMALLEST_ERASER_INDEX, i;
/* only used when flash supported SFDP */
SFUD_ASSERT(flash->sfdp.available);
/* the address isn't align by smallest eraser's size, then use the smallest eraser */
if (addr % flash->sfdp.eraser[SMALLEST_ERASER_INDEX].size) {
return SMALLEST_ERASER_INDEX;
}
/* Find the suitable eraser.
* The largest size eraser is at the end of eraser table.
* In order to decrease erase command counts, so the find process is from the end of eraser table. */
for (i = SFUD_SFDP_ERASE_TYPE_MAX_NUM - 1;; i--) {
if ((flash->sfdp.eraser[i].size != 0) && (erase_size >= flash->sfdp.eraser[i].size)
&& (addr % flash->sfdp.eraser[i].size == 0)) {
index = i;
break;
}
if (i == SMALLEST_ERASER_INDEX) {
break;
}
}
return index;
}
#endif /* SFUD_USING_SFDP */

3
components/drivers/spi/spi_flash.h
View File

@ -31,6 +31,9 @@ struct spi_flash_device
struct rt_device_blk_geometry geometry; struct rt_device_blk_geometry geometry;
struct rt_spi_device * rt_spi_device; struct rt_spi_device * rt_spi_device;
struct rt_mutex lock; struct rt_mutex lock;
void * user_data;
}; };
typedef struct spi_flash_device *rt_spi_flash_device_t;
#endif #endif

593
components/drivers/spi/spi_flash_sfud.c Normal file
View File

@ -0,0 +1,593 @@
/*
* File : spi_flash_sfud.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2016, 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
* 2016-09-28 armink first version.
*/
#include <stdint.h>
#include <rtdevice.h>
#include "spi_flash.h"
#include "spi_flash_sfud.h"
#ifdef RT_USING_SFUD
#if RT_DEBUG_SFUD
#define DEBUG_TRACE rt_kprintf("[SFUD] "); rt_kprintf
#else
#define DEBUG_TRACE(...)
#endif /* RT_DEBUG_SFUD */
#ifndef RT_SFUD_DEFAULT_SPI_CFG
/* read the JEDEC SFDP command must run at 50 MHz or less */
#define RT_SFUD_DEFAULT_SPI_CFG \
{ \
.mode = RT_SPI_MODE_0 | RT_SPI_MSB, \
.data_width = 8, \
.max_hz = 50 * 1000 * 1000, \
}
#endif
static char log_buf[RT_CONSOLEBUF_SIZE];
void sfud_log_debug(const char *file, const long line, const char *format, ...);
static rt_err_t rt_sfud_control(rt_device_t dev, rt_uint8_t cmd, void *args) {
RT_ASSERT(dev != RT_NULL);
switch (cmd) {
case RT_DEVICE_CTRL_BLK_GETGEOME: {
struct rt_device_blk_geometry *geometry = (struct rt_device_blk_geometry *) args;
struct spi_flash_device *rtt_dev = (struct spi_flash_device *) (dev->user_data);
if (rtt_dev == RT_NULL || geometry == RT_NULL) {
return -RT_ERROR;
}
geometry->bytes_per_sector = rtt_dev->geometry.bytes_per_sector;
geometry->sector_count = rtt_dev->geometry.sector_count;
geometry->block_size = rtt_dev->geometry.block_size;
break;
}
case RT_DEVICE_CTRL_BLK_ERASE: {
rt_uint32_t *addrs = (rt_uint32_t *) args, start_addr = addrs[0], end_addr = addrs[1], phy_start_addr;
struct spi_flash_device *rtt_dev = (struct spi_flash_device *) (dev->user_data);
sfud_flash *sfud_dev = (sfud_flash *) (rtt_dev->user_data);
rt_size_t phy_size;
if (addrs == RT_NULL || start_addr > end_addr || rtt_dev == RT_NULL || sfud_dev == RT_NULL) {
return -RT_ERROR;
}
phy_start_addr = start_addr * rtt_dev->geometry.bytes_per_sector;
phy_size = (end_addr - start_addr) * rtt_dev->geometry.bytes_per_sector;
if (sfud_erase(sfud_dev, phy_start_addr, phy_size) != SFUD_SUCCESS) {
return -RT_ERROR;
}
break;
}
}
return RT_EOK;
}
static rt_size_t rt_sfud_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size) {
struct spi_flash_device *rtt_dev = (struct spi_flash_device *) (dev->user_data);
sfud_flash *sfud_dev = (sfud_flash *) (rtt_dev->user_data);
/* change the block device¡¯s logic address to physical address */
rt_off_t phy_pos = pos * rtt_dev->geometry.bytes_per_sector;
rt_size_t phy_size = size * rtt_dev->geometry.bytes_per_sector;
if (sfud_read(sfud_dev, phy_pos, phy_size, buffer) != SFUD_SUCCESS) {
return 0;
} else {
return size;
}
}
static rt_size_t rt_sfud_write(rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size) {
struct spi_flash_device *rtt_dev = (struct spi_flash_device *) (dev->user_data);
sfud_flash *sfud_dev = (sfud_flash *) (rtt_dev->user_data);
/* change the block device¡¯s logic address to physical address */
rt_off_t phy_pos = pos * rtt_dev->geometry.bytes_per_sector;
rt_size_t phy_size = size * rtt_dev->geometry.bytes_per_sector;
if (sfud_erase_write(sfud_dev, phy_pos, phy_size, buffer) != SFUD_SUCCESS) {
return 0;
} else {
return size;
}
}
/**
* SPI write data then read data
*/
static sfud_err spi_write_read(const sfud_spi *spi, const uint8_t *write_buf, size_t write_size, uint8_t *read_buf,
size_t read_size) {
sfud_err result = SFUD_SUCCESS;
sfud_flash *sfud_dev = (sfud_flash *) (spi->user_data);
struct spi_flash_device *rtt_dev = (struct spi_flash_device *) (sfud_dev->user_data);
if (write_size) {
RT_ASSERT(write_buf);
}
if (read_size) {
RT_ASSERT(read_buf);
}
if (write_size && read_size) {
if (rt_spi_send_then_recv(rtt_dev->rt_spi_device, write_buf, write_size, read_buf, read_size) != RT_EOK) {
result = SFUD_ERR_TIMEOUT;
}
} else if (write_size) {
if (rt_spi_send(rtt_dev->rt_spi_device, write_buf, write_size) == 0) {
result = SFUD_ERR_TIMEOUT;
}
} else {
if (rt_spi_recv(rtt_dev->rt_spi_device, read_buf, read_size) == 0) {
result = SFUD_ERR_TIMEOUT;
}
}
return result;
}
static void spi_lock(const sfud_spi *spi) {
sfud_flash *sfud_dev = (sfud_flash *) (spi->user_data);
struct spi_flash_device *rtt_dev = (struct spi_flash_device *) (sfud_dev->user_data);
rt_mutex_take(&(rtt_dev->lock), RT_WAITING_FOREVER);
}
static void spi_unlock(const sfud_spi *spi) {
sfud_flash *sfud_dev = (sfud_flash *) (spi->user_data);
struct spi_flash_device *rtt_dev = (struct spi_flash_device *) (sfud_dev->user_data);
rt_mutex_release(&(rtt_dev->lock));
}
static void retry_delay_ms(void) {
/* millisecond delay */
rt_tick_from_millisecond(1);
}
static void retry_delay_100us(void) {
/* 100 microsecond delay */
rt_thread_delay((RT_TICK_PER_SECOND * 1 + 9999) / 10000);
}
/**
* This function is print debug info.
*
* @param file the file which has call this function
* @param line the line number which has call this function
* @param format output format
* @param ... args
*/
void sfud_log_debug(const char *file, const long line, const char *format, ...) {
va_list args;
/* args point to the first variable parameter */
va_start(args, format);
rt_kprintf("[SFUD](%s:%ld) ", file, line);
/* must use vprintf to print */
vsnprintf(log_buf, sizeof(log_buf), format, args);
rt_kprintf("%s\n", log_buf);
va_end(args);
}
/**
* This function is print routine info.
*
* @param format output format
* @param ... args
*/
void sfud_log_info(const char *format, ...) {
va_list args;
/* args point to the first variable parameter */
va_start(args, format);
rt_kprintf("[SFUD]");
/* must use vprintf to print */
vsnprintf(log_buf, sizeof(log_buf), format, args);
rt_kprintf("%s\n", log_buf);
va_end(args);
}
sfud_err sfud_spi_port_init(sfud_flash *flash) {
sfud_err result = SFUD_SUCCESS;
/* port SPI device interface */
flash->spi.wr = spi_write_read;
flash->spi.lock = spi_lock;
flash->spi.unlock = spi_unlock;
flash->spi.user_data = flash;
/* 100 microsecond delay */
flash->retry.delay = retry_delay_100us;
/* 60 seconds timeout */
flash->retry.times = 60 * 10000;
return result;
}
/**
* Probe SPI flash by SFUD(Serial Flash Universal Driver) driver library and though SPI device.
*
* @param spi_flash_dev_name the name which will create SPI flash device
* @param spi_dev_name using SPI device name
*
* @return probed SPI flash device, probe failed will return RT_NULL
*/
rt_spi_flash_device_t rt_sfud_flash_probe(const char *spi_flash_dev_name, const char *spi_dev_name) {
rt_spi_flash_device_t rtt_dev = RT_NULL;
sfud_flash *sfud_dev = RT_NULL;
char *spi_flash_dev_name_bak = RT_NULL, *spi_dev_name_bak = RT_NULL;
extern sfud_err sfud_device_init(sfud_flash *flash);
RT_ASSERT(spi_flash_dev_name);
RT_ASSERT(spi_dev_name);
rtt_dev = (rt_spi_flash_device_t) rt_malloc(sizeof(struct spi_flash_device));
sfud_dev = (sfud_flash_t) rt_malloc(sizeof(sfud_flash));
spi_flash_dev_name_bak = (char *) rt_malloc(rt_strlen(spi_flash_dev_name) + 1);
spi_dev_name_bak = (char *) rt_malloc(rt_strlen(spi_dev_name) + 1);
if (rtt_dev && sfud_dev && spi_flash_dev_name_bak && spi_dev_name_bak) {
rt_memset(rtt_dev, 0, sizeof(struct spi_flash_device));
rt_memset(sfud_dev, 0, sizeof(sfud_flash));
rt_strncpy(spi_flash_dev_name_bak, spi_flash_dev_name, rt_strlen(spi_flash_dev_name));
rt_strncpy(spi_dev_name_bak, spi_dev_name, rt_strlen(spi_dev_name));
/* make string end sign */
spi_flash_dev_name_bak[rt_strlen(spi_flash_dev_name)] = '\0';
spi_dev_name_bak[rt_strlen(spi_dev_name)] = '\0';
/* SPI configure */
{
/* RT-Thread SPI device initialize */
rtt_dev->rt_spi_device = (struct rt_spi_device *) rt_device_find(spi_dev_name);
if (rtt_dev->rt_spi_device == RT_NULL) {
rt_kprintf("ERROR: SPI device %s not found!\n", spi_dev_name);
goto error;
}
sfud_dev->spi.name = spi_dev_name_bak;
/* using default flash SPI configuration for initialize SPI Flash
* @note you also can change the SPI to other configuration after initialized finish */
struct rt_spi_configuration cfg = RT_SFUD_DEFAULT_SPI_CFG;
rt_spi_configure(rtt_dev->rt_spi_device, &cfg);
/* initialize lock */
rt_mutex_init(&(rtt_dev->lock), spi_flash_dev_name, RT_IPC_FLAG_FIFO);
}
/* SFUD flash device initialize */
{
sfud_dev->name = spi_flash_dev_name_bak;
/* accessed each other */
rtt_dev->user_data = sfud_dev;
rtt_dev->flash_device.user_data = rtt_dev;
sfud_dev->user_data = rtt_dev;
/* initialize SFUD device */
if (sfud_device_init(sfud_dev) != SFUD_SUCCESS) {
rt_kprintf("ERROR: SPI flash probe failed by SPI device %s.\n", spi_dev_name);
goto error;
}
/* when initialize success, then copy SFUD flash device's geometry to RT-Thread SPI flash device */
rtt_dev->geometry.sector_count = sfud_dev->chip.capacity / sfud_dev->chip.erase_gran;
rtt_dev->geometry.bytes_per_sector = sfud_dev->chip.erase_gran;
rtt_dev->geometry.block_size = sfud_dev->chip.erase_gran;
}
/* register device */
rtt_dev->flash_device.type = RT_Device_Class_Block;
rtt_dev->flash_device.init = RT_NULL;
rtt_dev->flash_device.open = RT_NULL;
rtt_dev->flash_device.close = RT_NULL;
rtt_dev->flash_device.read = rt_sfud_read;
rtt_dev->flash_device.write = rt_sfud_write;
rtt_dev->flash_device.control = rt_sfud_control;
rt_device_register(&(rtt_dev->flash_device), spi_flash_dev_name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE);
DEBUG_TRACE("Probe SPI flash %s by SPI device %s success.\n",spi_flash_dev_name, spi_dev_name);
return rtt_dev;
} else {
rt_kprintf("ERROR: Low memory.\n");
goto error;
}
error:
/* may be one of objects memory was malloc success, so need free all */
rt_free(rtt_dev);
rt_free(sfud_dev);
rt_free(spi_flash_dev_name_bak);
rt_free(spi_dev_name_bak);
return RT_NULL;
}
/**
* Delete SPI flash device
*
* @param spi_flash_dev SPI flash device
*
* @return the operation status, RT_EOK on successful
*/
rt_err_t rt_sfud_flash_delete(rt_spi_flash_device_t spi_flash_dev) {
sfud_flash *sfud_flash_dev = (sfud_flash *) (spi_flash_dev->user_data);
RT_ASSERT(spi_flash_dev);
RT_ASSERT(sfud_flash_dev);
rt_device_unregister(&(spi_flash_dev->flash_device));
rt_mutex_detach(&(spi_flash_dev->lock));
rt_free(sfud_flash_dev->spi.name);
rt_free(sfud_flash_dev->name);
rt_free(sfud_flash_dev);
rt_free(spi_flash_dev);
return RT_EOK;
}
#if defined(RT_USING_FINSH) && defined(FINSH_USING_MSH)
#include <finsh.h>
static void sf(uint8_t argc, char **argv) {
#define CMD_SETECT_INDEX 0
#define CMD_READ_INDEX 1
#define CMD_WRITE_INDEX 2
#define CMD_ERASE_INDEX 3
#define CMD_RW_STATUS_INDEX 4
#define CMD_BENCH_INDEX 5
sfud_err result = SFUD_SUCCESS;
static const sfud_flash *sfud_dev = NULL;
static rt_spi_flash_device_t rtt_dev = NULL, rtt_dev_bak = NULL;
size_t i = 0;
const char* sf_help_info[] = {
[CMD_SETECT_INDEX] = "sf probe [spi_device] - probe and init SPI flash by given 'spi_device'",
[CMD_READ_INDEX] = "sf read addr size - read 'size' bytes starting at 'addr'",
[CMD_WRITE_INDEX] = "sf write addr data1 ... dataN - write some bytes 'data' to flash starting at 'addr'",
[CMD_ERASE_INDEX] = "sf erase addr size - erase 'size' bytes starting at 'addr'",
[CMD_RW_STATUS_INDEX] = "sf status [<volatile> <status>] - read or write '1:volatile|0:non-volatile' 'status'",
[CMD_BENCH_INDEX] = "sf bench - full chip benchmark. DANGER: It will erase full chip!",
};
if (argc < 2) {
rt_kprintf("Usage:\n");
for (i = 0; i < sizeof(sf_help_info) / sizeof(char*); i++) {
rt_kprintf("%s\n", sf_help_info[i]);
}
rt_kprintf("\n");
} else {
const char *operator = argv[1];
uint32_t addr, size;
if (!strcmp(operator, "probe")) {
if (argc < 3) {
rt_kprintf("Usage: %s.\n", sf_help_info[CMD_SETECT_INDEX]);
} else {
char *spi_dev_name = argv[2];
rtt_dev_bak = rtt_dev;
rtt_dev = rt_sfud_flash_probe("sf_cmd", spi_dev_name);
if (!rtt_dev) {
return;
}
/* already probe then delete the old SPI flash device */
if(rtt_dev_bak) {
rt_sfud_flash_delete(rtt_dev_bak);
}
sfud_dev = (sfud_flash_t)rtt_dev->user_data;
if (sfud_dev->chip.capacity < 1024 * 1024) {
rt_kprintf("%d KB %s is current selected device.\n", sfud_dev->chip.capacity / 1024, sfud_dev->name);
} else {
rt_kprintf("%d MB %s is current selected device.\n", sfud_dev->chip.capacity / 1024 / 1024,
sfud_dev->name);
}
}
} else {
if (!sfud_dev) {
rt_kprintf("No flash device selected. Please run 'sf probe'.\n");
return;
}
if (!rt_strcmp(operator, "read")) {
if (argc < 4) {
rt_kprintf("Usage: %s.\n", sf_help_info[CMD_READ_INDEX]);
return;
} else {
addr = atol(argv[2]);
size = atol(argv[3]);
uint8_t *data = rt_malloc(size);
if (data) {
result = sfud_read(sfud_dev, addr, size, data);
if (result == SFUD_SUCCESS) {
rt_kprintf("Read the %s flash data success. Start from 0x%08X, size is %ld. The data is:\n",
sfud_dev->name, addr, size);
rt_kprintf("Offset (h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F\n");
for (i = 0; i < size; i++) {
if (i % 16 == 0) {
rt_kprintf("[%08X] ", addr + i);
}
rt_kprintf("%02X ", data[i]);
if (((i + 1) % 16 == 0) || i == size - 1) {
rt_kprintf("\n");
}
}
rt_kprintf("\n");
}
rt_free(data);
} else {
rt_kprintf("Low memory!\n");
}
}
} else if (!rt_strcmp(operator, "write")) {
if (argc < 4) {
rt_kprintf("Usage: %s.\n", sf_help_info[CMD_WRITE_INDEX]);
return;
} else {
addr = atol(argv[2]);
size = argc - 3;
uint8_t *data = rt_malloc(size);
if (data) {
for (i = 0; i < size; i++) {
data[i] = atoi(argv[3 + i]);
}
result = sfud_write(sfud_dev, addr, size, data);
if (result == SFUD_SUCCESS) {
rt_kprintf("Write the %s flash data success. Start from 0x%08X, size is %ld.\n",
sfud_dev->name, addr, size);
rt_kprintf("Write data: ");
for (i = 0; i < size; i++) {
rt_kprintf("%d ", data[i]);
}
rt_kprintf(".\n");
}
rt_free(data);
} else {
rt_kprintf("Low memory!\n");
}
}
} else if (!rt_strcmp(operator, "erase")) {
if (argc < 4) {
rt_kprintf("Usage: %s.\n", sf_help_info[CMD_ERASE_INDEX]);
return;
} else {
addr = atol(argv[2]);
size = atol(argv[3]);
result = sfud_erase(sfud_dev, addr, size);
if (result == SFUD_SUCCESS) {
rt_kprintf("Erase the %s flash data success. Start from 0x%08X, size is %ld.\n", sfud_dev->name,
addr, size);
}
}
} else if (!rt_strcmp(operator, "status")) {
if (argc < 3) {
uint8_t status;
result = sfud_read_status(sfud_dev, &status);
if (result == SFUD_SUCCESS) {
rt_kprintf("The %s flash status register current value is 0x%02X.\n", sfud_dev->name, status);
}
} else if (argc == 4) {
bool is_volatile = atoi(argv[2]);
uint8_t status = atoi(argv[3]);
result = sfud_write_status(sfud_dev, is_volatile, status);
if (result == SFUD_SUCCESS) {
rt_kprintf("Write the %s flash status register to 0x%02X success.\n", sfud_dev->name, status);
}
} else {
rt_kprintf("Usage: %s.\n", sf_help_info[CMD_RW_STATUS_INDEX]);
return;
}
} else if (!rt_strcmp(operator, "bench")) {
if ((argc > 2 && rt_strcmp(argv[2], "yes")) || argc < 3) {
rt_kprintf("DANGER: It will erase full chip! Please run 'sf bench yes'.");
return;
}
/* full chip benchmark test */
addr = 0;
size = sfud_dev->chip.capacity;
uint32_t start_time, time_cast;
rt_uint32_t total_mem, used_mem, max_uesd_mem;
rt_memory_info(&total_mem, &used_mem, &max_uesd_mem);
size_t write_size = SFUD_WRITE_MAX_PAGE_SIZE, read_size;
if ((total_mem - used_mem) / 2 < size) {
read_size = (total_mem - used_mem) / 2;
} else {
read_size = size;
}
uint8_t *write_data = rt_malloc(write_size), *read_data = rt_malloc(read_size);
if (write_data && read_data) {
rt_memset(write_data, 0x55, write_size);
/* benchmark testing */
rt_kprintf("Erasing the %s %ld bytes data, waiting...\n", sfud_dev->name, size);
start_time = rt_tick_get();
result = sfud_erase(sfud_dev, addr, size);
if (result == SFUD_SUCCESS) {
time_cast = rt_tick_get() - start_time;
rt_kprintf("Erase benchmark success, total time: %d.%03dS.\n", time_cast / RT_TICK_PER_SECOND,
time_cast % RT_TICK_PER_SECOND / ((RT_TICK_PER_SECOND * 1 + 999) / 1000));
} else {
rt_kprintf("Erase benchmark has an error. Error code: %d.\n", result);
}
/* write test */
rt_kprintf("Writing the %s %ld bytes data, waiting...\n", sfud_dev->name, size);
start_time = rt_tick_get();
for (i = 0; i < size; i += write_size) {
result = sfud_write(sfud_dev, addr + i, write_size, write_data);
if (result != SFUD_SUCCESS) {
break;
}
}
if (result == SFUD_SUCCESS) {
time_cast = rt_tick_get() - start_time;
rt_kprintf("Write benchmark success, total time: %d.%03dS.\n", time_cast / RT_TICK_PER_SECOND,
time_cast % RT_TICK_PER_SECOND / ((RT_TICK_PER_SECOND * 1 + 999) / 1000));
} else {
rt_kprintf("Write benchmark has an error. Error code: %d.\n", result);
}
/* read test */
rt_kprintf("Reading the %s %ld bytes data, waiting...\n", sfud_dev->name, size);
start_time = rt_tick_get();
for (i = 0; i < size; i += read_size) {
if (i + read_size <= size) {
result = sfud_read(sfud_dev, addr + i, read_size, read_data);
} else {
result = sfud_read(sfud_dev, addr + i, size - i, read_data);
}
if (result != SFUD_SUCCESS) {
break;
}
}
if (result == SFUD_SUCCESS) {
time_cast = rt_tick_get() - start_time;
rt_kprintf("Read benchmark success, total time: %d.%03dS.\n", time_cast / RT_TICK_PER_SECOND,
time_cast % RT_TICK_PER_SECOND / ((RT_TICK_PER_SECOND * 1 + 999) / 1000));
} else {
rt_kprintf("Read benchmark has an error. Error code: %d.\n", result);
}
} else {
rt_kprintf("Low memory!\n");
}
rt_free(write_data);
rt_free(read_data);
} else {
rt_kprintf("Usage:\n");
for (i = 0; i < sizeof(sf_help_info) / sizeof(char*); i++) {
rt_kprintf("%s\n", sf_help_info[i]);
}
rt_kprintf("\n");
return;
}
if (result != SFUD_SUCCESS) {
rt_kprintf("This flash operate has an error. Error code: %d.\n", result);
}
}
}
}
MSH_CMD_EXPORT(sf, SPI Flash operate.);
#endif /* defined(RT_USING_FINSH) && defined(FINSH_USING_MSH) */
#endif /* RT_USING_SFUD */

50
components/drivers/spi/spi_flash_sfud.h Normal file
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@ -0,0 +1,50 @@
/*
* File : spi_flash_sfud.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2016, 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
* 2016-09-28 armink first version.
*/
#ifndef _SPI_FLASH_SFUD_H_
#define _SPI_FLASH_SFUD_H_
#include <rtthread.h>
#include "./sfud/inc/sfud.h"
/**
* Probe SPI flash by SFUD(Serial Flash Universal Driver) driver library and though SPI device.
*
* @param spi_flash_dev_name the name which will create SPI flash device
* @param spi_dev_name using SPI device name
*
* @return probed SPI flash device, probe failed will return RT_NULL
*/
rt_spi_flash_device_t rt_sfud_flash_probe(const char *spi_flash_dev_name, const char *spi_dev_name);
/**
* Delete SPI flash device
*
* @param spi_flash_dev SPI flash device
*
* @return the operation status, RT_EOK on successful
*/
rt_err_t rt_sfud_flash_delete(rt_spi_flash_device_t spi_flash_dev);
#endif /* _SPI_FLASH_SFUD_H_ */