libxr  1.0
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Public Member Functions | Data Fields | Static Public Attributes
LibXR::STM32SPI Class Reference
Inheritance diagram for LibXR::STM32SPI:
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Collaboration diagram for LibXR::STM32SPI:
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Public Member Functions

 STM32SPI (SPI_HandleTypeDef *spi_handle, RawData dma_buff_rx, RawData dma_buff_tx, uint32_t dma_enable_min_size=3)
 
ErrorCode ReadAndWrite (RawData read_data, ConstRawData write_data, OperationRW &op) override
 进行 SPI 读写操作。Performs SPI read and write operations.
 
ErrorCode SetConfig (SPI::Configuration config) override
 设置 SPI 配置参数。Sets SPI configuration parameters.
 
ErrorCode MemRead (uint16_t reg, RawData read_data, OperationRW &op) override
 从 SPI 设备的寄存器读取数据。 Reads data from a specific register of the SPI device.
 
ErrorCode MemWrite (uint16_t reg, ConstRawData write_data, OperationRW &op) override
 向 SPI 设备的寄存器写入数据。 Writes data to a specific register of the SPI device.
 
- Public Member Functions inherited from LibXR::SPI
 SPI ()
 默认构造函数。Default constructor.
 
virtual ErrorCode Read (RawData read_data, OperationRW &op)
 进行 SPI 读取操作。Performs SPI read operation.
 
virtual ErrorCode Write (ConstRawData write_data, OperationRW &op)
 进行 SPI 写入操作。Performs SPI write operation.
 

Data Fields

RawData dma_buff_rx_
 
RawData dma_buff_tx_
 
SPI_HandleTypeDef * spi_handle_
 
stm32_spi_id_t id_ = STM32_SPI_ID_ERROR
 
uint32_t dma_enable_min_size_ = 3
 
OperationRW rw_op_
 
RawData read_buff_
 
bool mem_read_ = false
 

Static Public Attributes

static STM32SPI * map [STM32_SPI_NUMBER] = {nullptr}
 

Additional Inherited Members

- Public Types inherited from LibXR::SPI
enum class  ClockPolarity : uint8_t { LOW = 0 , HIGH = 1 }
 定义 SPI 时钟极性。Defines the SPI clock polarity. More...
 
enum class  ClockPhase : uint8_t { EDGE_1 = 0 , EDGE_2 = 1 }
 定义 SPI 时钟相位。Defines the SPI clock phase. More...
 
using OperationRW = WriteOperation
 定义读写操作类型的别名。Defines an alias for the read/write operation type.
 

Detailed Description

Definition at line 49 of file stm32_spi.hpp.

Constructor & Destructor Documentation

◆ STM32SPI()

LibXR::STM32SPI::STM32SPI ( SPI_HandleTypeDef * spi_handle,
RawData dma_buff_rx,
RawData dma_buff_tx,
uint32_t dma_enable_min_size = 3 )
inline

Definition at line 52 of file stm32_spi.hpp.

54 : SPI(),
55 dma_buff_rx_(dma_buff_rx),
56 dma_buff_tx_(dma_buff_tx),
57 spi_handle_(spi_handle),
58 id_(STM32_SPI_GetID(spi_handle_->Instance)),
59 dma_enable_min_size_(dma_enable_min_size)
60 {
61 ASSERT(id_ != STM32_SPI_ID_ERROR);
62
63 map[id_] = this;
64 }
LibXR::SPI::SPI
SPI()
默认构造函数。Default constructor.
Definition spi.hpp:66

Member Function Documentation

◆ MemRead()

ErrorCode LibXR::STM32SPI::MemRead ( uint16_t reg,
RawData read_data,
OperationRW & op )
inlineoverridevirtual

从 SPI 设备的寄存器读取数据。 Reads data from a specific register of the SPI device.

Parameters
reg寄存器地址。Register address.
read_data读取的数据缓冲区。Buffer to store read data.
op操作类型（同步/异步）。Operation mode (sync/async).
Returns
操作结果的错误码。Error code indicating success or failure.

Implements LibXR::SPI.

Definition at line 153 of file stm32_spi.hpp.

154 {
155 uint32_t need_read = read_data.size_;
156
157 if (spi_handle_->State != HAL_SPI_STATE_READY)
158 {
159 return ErrorCode::BUSY;
160 }
161
162 mem_read_ = false;
163
164 uint8_t *dma_buffer_rx = reinterpret_cast<uint8_t *>(dma_buff_rx_.addr_);
165 uint8_t *dma_buffer_tx = reinterpret_cast<uint8_t *>(dma_buff_tx_.addr_);
166
167 if (need_read + 1 > dma_enable_min_size_)
168 {
169 memset(dma_buff_rx_.addr_, 0, need_read + 1);
170 memset(dma_buff_tx_.addr_, 0, need_read + 1);
171 dma_buffer_tx[0] = reg | 0x80;
172 rw_op_ = op;
173 read_buff_ = read_data;
174
175 mem_read_ = true;
176
177 HAL_SPI_TransmitReceive_DMA(spi_handle_, static_cast<uint8_t *>(dma_buff_tx_.addr_),
178 static_cast<uint8_t *>(dma_buff_rx_.addr_),
179 need_read + 1);
180
181 op.MarkAsRunning();
182 if (op.type == OperationRW::OperationType::BLOCK)
183 {
184 return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
185 }
186 return ErrorCode::OK;
187 }
188 else
189 {
190 memset(dma_buff_rx_.addr_, 0, need_read + 1);
191 memset(dma_buff_tx_.addr_, 0, need_read + 1);
192 dma_buffer_tx[0] = reg | 0x80;
193 ErrorCode ans =
194 HAL_SPI_TransmitReceive(spi_handle_, static_cast<uint8_t *>(dma_buff_tx_.addr_),
195 static_cast<uint8_t *>(dma_buff_rx_.addr_),
196 need_read + 1, 20) == HAL_OK
197 ? ErrorCode::OK
198 : ErrorCode::BUSY;
199
200 memcpy(read_data.addr_, dma_buffer_rx + 1, read_data.size_);
201
202 op.UpdateStatus(false, std::forward<ErrorCode>(ans));
203
204 if (op.type == OperationRW::OperationType::BLOCK)
205 {
206 return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
207 }
208
209 return ans;
210 }
211 }
LibXR::RawData::addr_
void * addr_
数据存储地址。 The storage address of the data.
Definition libxr_type.hpp:114

◆ MemWrite()

ErrorCode LibXR::STM32SPI::MemWrite ( uint16_t reg,
ConstRawData write_data,
OperationRW & op )
inlineoverridevirtual

向 SPI 设备的寄存器写入数据。 Writes data to a specific register of the SPI device.

Parameters
reg寄存器地址。Register address.
write_data写入的数据缓冲区。Buffer containing data to write.
op操作类型（同步/异步）。Operation mode (sync/async).
Returns
操作结果的错误码。Error code indicating success or failure.

Implements LibXR::SPI.

Definition at line 213 of file stm32_spi.hpp.

214 {
215 uint32_t need_write = write_data.size_;
216
217 if (spi_handle_->State != HAL_SPI_STATE_READY)
218 {
219 return ErrorCode::BUSY;
220 }
221
222 mem_read_ = false;
223
224 uint8_t *dma_buffer_tx = reinterpret_cast<uint8_t *>(dma_buff_tx_.addr_);
225
226 if (need_write + 1 > dma_enable_min_size_)
227 {
228 memcpy(dma_buffer_tx + 1, write_data.addr_, need_write);
229 *dma_buffer_tx = reg & 0x7f;
230
231 rw_op_ = op;
232 read_buff_ = {nullptr, 0};
233
234 HAL_SPI_TransmitReceive_DMA(spi_handle_, static_cast<uint8_t *>(dma_buff_tx_.addr_),
235 static_cast<uint8_t *>(dma_buff_rx_.addr_),
236 need_write + 1);
237
238 op.MarkAsRunning();
239 if (op.type == OperationRW::OperationType::BLOCK)
240 {
241 return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
242 }
243 return ErrorCode::OK;
244 }
245 else
246 {
247 memcpy(dma_buffer_tx + 1, write_data.addr_, need_write);
248 *dma_buffer_tx = reg & 0x7f;
249 ErrorCode ans =
250 HAL_SPI_TransmitReceive(spi_handle_, static_cast<uint8_t *>(dma_buff_tx_.addr_),
251 static_cast<uint8_t *>(dma_buff_rx_.addr_),
252 need_write + 1, 20) == HAL_OK
253 ? ErrorCode::OK
254 : ErrorCode::BUSY;
255
256 op.UpdateStatus(false, std::forward<ErrorCode>(ans));
257
258 if (op.type == OperationRW::OperationType::BLOCK)
259 {
260 return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
261 }
262
263 return ans;
264 }
265 }

◆ ReadAndWrite()

ErrorCode LibXR::STM32SPI::ReadAndWrite ( RawData read_data,
ConstRawData write_data,
OperationRW & op )
inlineoverridevirtual

进行 SPI 读写操作。Performs SPI read and write operations.

Parameters
read_data存储读取数据的缓冲区。Buffer to store the read data.
write_data需要写入的数据缓冲区。Buffer containing the data to be written.
op读写操作类型。Type of read/write operation.
Returns
操作结果的错误码。Error code indicating the result of the operation.

Implements LibXR::SPI.

Definition at line 66 of file stm32_spi.hpp.

68 {
69 uint32_t need_write = max(write_data.size_, read_data.size_);
70 ASSERT(need_write <= dma_buff_rx_.size_ && need_write <= dma_buff_tx_.size_);
71
72 if (spi_handle_->State != HAL_SPI_STATE_READY)
73 {
74 return ErrorCode::BUSY;
75 }
76
77 mem_read_ = false;
78
79 if (need_write > dma_enable_min_size_)
80 {
81 memcpy(dma_buff_tx_.addr_, write_data.addr_, need_write);
82 memset(dma_buff_rx_.addr_, 0, need_write);
83 rw_op_ = op;
84 read_buff_ = read_data;
85
86#if __DCACHE_PRESENT
87 if (write_data.size_ > 0)
88 {
89 SCB_CleanDCache_by_Addr(static_cast<uint32_t *>(dma_buff_tx_.addr_),
90 write_data.size_);
91 }
92#endif
93
94 HAL_SPI_TransmitReceive_DMA(spi_handle_, static_cast<uint8_t *>(dma_buff_tx_.addr_),
95 static_cast<uint8_t *>(dma_buff_rx_.addr_), need_write);
96
97 op.MarkAsRunning();
98 if (op.type == OperationRW::OperationType::BLOCK)
99 {
100 return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
101 }
102 return ErrorCode::OK;
103 }
104 else
105 {
106 memcpy(dma_buff_tx_.addr_, write_data.addr_, write_data.size_);
107 memset(dma_buff_rx_.addr_, 0, write_data.size_);
108 ErrorCode ans =
109 HAL_SPI_TransmitReceive(spi_handle_, static_cast<uint8_t *>(dma_buff_tx_.addr_),
110 static_cast<uint8_t *>(dma_buff_rx_.addr_), need_write,
111 20) == HAL_OK
112 ? ErrorCode::OK
113 : ErrorCode::BUSY;
114
115 memcpy(read_data.addr_, dma_buff_rx_.addr_, read_data.size_);
116
117 op.UpdateStatus(false, std::forward<ErrorCode>(ans));
118
119 if (op.type == OperationRW::OperationType::BLOCK)
120 {
121 return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
122 }
123
124 return ans;
125 }
126 }
LibXR::RawData::size_
size_t size_
数据大小（字节）。 The size of the data (in bytes).
Definition libxr_type.hpp:115
LibXR::max
constexpr auto max(T1 a, T2 b) -> typename std::common_type< T1, T2 >::type
计算两个数的最大值
Definition libxr_def.hpp:150

◆ SetConfig()

ErrorCode LibXR::STM32SPI::SetConfig ( SPI::Configuration config)
inlineoverridevirtual

设置 SPI 配置参数。Sets SPI configuration parameters.

Parameters
config需要应用的 SPI 配置。The SPI configuration to apply.
Returns
操作结果的错误码。Error code indicating the result of the operation.

Implements LibXR::SPI.

Definition at line 128 of file stm32_spi.hpp.

129 {
130 switch (config.clock_polarity)
131 {
132 case SPI::ClockPolarity::LOW:
133 spi_handle_->Init.CLKPolarity = SPI_POLARITY_LOW;
134 break;
135 case SPI::ClockPolarity::HIGH:
136 spi_handle_->Init.CLKPolarity = SPI_POLARITY_HIGH;
137 break;
138 }
139
140 switch (config.clock_phase)
141 {
142 case SPI::ClockPhase::EDGE_1:
143 spi_handle_->Init.CLKPhase = SPI_PHASE_1EDGE;
144 break;
145 case SPI::ClockPhase::EDGE_2:
146 spi_handle_->Init.CLKPhase = SPI_PHASE_2EDGE;
147 break;
148 }
149
150 return HAL_SPI_Init(spi_handle_) == HAL_OK ? ErrorCode::OK : ErrorCode::BUSY;
151 }
LibXR::SPI::ClockPhase::EDGE_2
@ EDGE_2
在第二个时钟边沿采样数据。Data sampled on the second clock edge.
LibXR::SPI::ClockPhase::EDGE_1
@ EDGE_1
在第一个时钟边沿采样数据。Data sampled on the first clock edge.
LibXR::SPI::ClockPolarity::LOW
@ LOW
时钟空闲时为低电平。Clock idle low.
LibXR::SPI::ClockPolarity::HIGH
@ HIGH
时钟空闲时为高电平。Clock idle high.

Field Documentation

◆ dma_buff_rx_

RawData LibXR::STM32SPI::dma_buff_rx_

Definition at line 267 of file stm32_spi.hpp.

◆ dma_buff_tx_

RawData LibXR::STM32SPI::dma_buff_tx_

Definition at line 267 of file stm32_spi.hpp.

◆ dma_enable_min_size_

uint32_t LibXR::STM32SPI::dma_enable_min_size_ = 3

Definition at line 273 of file stm32_spi.hpp.

◆ id_

stm32_spi_id_t LibXR::STM32SPI::id_ = STM32_SPI_ID_ERROR

Definition at line 271 of file stm32_spi.hpp.

◆ map

STM32SPI * STM32SPI::map = {nullptr}
static

Definition at line 281 of file stm32_spi.hpp.

◆ mem_read_

bool LibXR::STM32SPI::mem_read_ = false

Definition at line 279 of file stm32_spi.hpp.

◆ read_buff_

RawData LibXR::STM32SPI::read_buff_

Definition at line 277 of file stm32_spi.hpp.

◆ rw_op_

OperationRW LibXR::STM32SPI::rw_op_

Definition at line 275 of file stm32_spi.hpp.

◆ spi_handle_

SPI_HandleTypeDef* LibXR::STM32SPI::spi_handle_

Definition at line 269 of file stm32_spi.hpp.

The documentation for this class was generated from the following files: