[Bsp] stm32f107 spi drv : dma add irq

bsp/stm32f107/drivers/rt_stm32f10x_spi.c

@@ -9,35 +9,28 @@ static struct rt_spi_ops stm32_spi_ops =
     xfer
 };
 
-#ifdef USING_SPI1
-static struct stm32_spi_bus stm32_spi_bus_1;
-#endif /* #ifdef USING_SPI1 */
-
-#ifdef USING_SPI2
-static struct stm32_spi_bus stm32_spi_bus_2;
-#endif /* #ifdef USING_SPI2 */
-
-#ifdef USING_SPI3
-static struct stm32_spi_bus stm32_spi_bus_3;
-#endif /* #ifdef USING_SPI3 */
-
 //------------------ DMA ------------------
 #ifdef SPI_USE_DMA
 static uint8_t dummy = 0xFF;
-#endif
+#endif /*SPI_USE_DMA*/
 
 #ifdef SPI_USE_DMA
 static void DMA_Configuration(struct stm32_spi_bus * stm32_spi_bus, const void * send_addr, void * recv_addr, rt_size_t size)
 {
     DMA_InitTypeDef DMA_InitStructure;
 
-    DMA_ClearFlag(stm32_spi_bus->DMA_Channel_RX_FLAG_TC
-                  | stm32_spi_bus->DMA_Channel_RX_FLAG_TE
-                  | stm32_spi_bus->DMA_Channel_TX_FLAG_TC
-                  | stm32_spi_bus->DMA_Channel_TX_FLAG_TE);
+    if(!stm32_spi_bus->dma)
+    {
+         return;
+    }
+
+    DMA_ClearFlag(stm32_spi_bus->dma->priv_data->DMA_Channel_RX_FLAG_TC
+                  | stm32_spi_bus->dma->priv_data->DMA_Channel_RX_FLAG_TE
+                  | stm32_spi_bus->dma->priv_data->DMA_Channel_TX_FLAG_TC
+                  | stm32_spi_bus->dma->priv_data->DMA_Channel_TX_FLAG_TE);
 
     /* RX channel configuration */
-    DMA_Cmd(stm32_spi_bus->DMA_Channel_RX, DISABLE);
+    DMA_Cmd(stm32_spi_bus->dma->priv_data->DMA_Channel_RX, DISABLE);
     DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)(&(stm32_spi_bus->SPI->DR));
     DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
     DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
@@ -60,12 +53,13 @@ static void DMA_Configuration(struct stm32_spi_bus * stm32_spi_bus, const void *
         DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
     }
 
-    DMA_Init(stm32_spi_bus->DMA_Channel_RX, &DMA_InitStructure);
+    DMA_Init(stm32_spi_bus->dma->priv_data->DMA_Channel_RX, &DMA_InitStructure);
 
-    DMA_Cmd(stm32_spi_bus->DMA_Channel_RX, ENABLE);
+    DMA_ITConfig(stm32_spi_bus->dma->priv_data->DMA_Channel_RX, DMA_IT_TC, ENABLE);
+    DMA_Cmd(stm32_spi_bus->dma->priv_data->DMA_Channel_RX, ENABLE);
 
     /* TX channel configuration */
-    DMA_Cmd(stm32_spi_bus->DMA_Channel_TX, DISABLE);
+    DMA_Cmd(stm32_spi_bus->dma->priv_data->DMA_Channel_TX, DISABLE);
     DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)(&(stm32_spi_bus->SPI->DR));
     DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
     DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
@@ -88,18 +82,125 @@ static void DMA_Configuration(struct stm32_spi_bus * stm32_spi_bus, const void *
         DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
     }
 
-    DMA_Init(stm32_spi_bus->DMA_Channel_TX, &DMA_InitStructure);
+    DMA_Init(stm32_spi_bus->dma->priv_data->DMA_Channel_TX, &DMA_InitStructure);
 
-    DMA_Cmd(stm32_spi_bus->DMA_Channel_TX, ENABLE);
+    DMA_ITConfig(stm32_spi_bus->dma->priv_data->DMA_Channel_TX, DMA_IT_TC, ENABLE);
+    DMA_Cmd(stm32_spi_bus->dma->priv_data->DMA_Channel_TX, ENABLE);
+}
+#ifdef SPI1_USING_DMA
+static const struct stm32_spi_dma_private dma1_priv =
+{
+    DMA1_Channel3,
+    DMA1_Channel2,
+    DMA1_FLAG_TC3,
+    DMA1_FLAG_TE3,
+    DMA1_FLAG_TC2,
+    DMA1_FLAG_TE2,
+    DMA1_Channel3_IRQn,
+    DMA1_Channel2_IRQn,
+    DMA1_FLAG_GL3,
+    DMA1_FLAG_GL2,
+};
+static struct stm32_spi_dma dma1 =
+{
+    &dma1_priv,
+};
+void DMA1_Channel2_IRQHandler(void) {
+    /* enter interrupt */
+    rt_interrupt_enter();
+    rt_event_send(&dma1.event, SPI_DMA_TX_DONE);
+    DMA_ClearFlag(dma1.priv_data->tx_gl_flag);
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+void DMA1_Channel3_IRQHandler(void) {
+    /* enter interrupt */
+    rt_interrupt_enter();
+    rt_event_send(&dma1.event, SPI_DMA_RX_DONE);
+    DMA_ClearFlag(dma1.priv_data->rx_gl_flag);
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /*SPI1_USING_DMA*/
+#ifdef SPI2_USING_DMA
+static const struct stm32_spi_dma_private dma2_priv =
+{
+    DMA1_Channel5,
+    DMA1_Channel5,
+    DMA1_FLAG_TC5,
+    DMA1_FLAG_TE5,
+    DMA1_FLAG_TC4,
+    DMA1_FLAG_TE4,
+    DMA1_Channel5_IRQn,
+    DMA1_Channel4_IRQn,
+    DMA1_FLAG_GL5,
+    DMA1_FLAG_GL4,
+};
+static struct stm32_spi_dma dma2 =
+{
+    &dma2_priv,
+};
+void DMA1_Channel4_IRQHandler(void) {
+    /* enter interrupt */
+    rt_interrupt_enter();
+    rt_event_send(&dma2.event, SPI_DMA_TX_DONE);
+    DMA_ClearFlag(dma2.tx_gl_flag);
+    /* leave interrupt */
+    rt_interrupt_leave();
 }
-#endif
+void DMA1_Channel5_IRQHandler(void) {
+    /* enter interrupt */
+    rt_interrupt_enter();
+    rt_event_send(&dma2.event, SPI_DMA_RX_DONE);
+    DMA_ClearFlag(dma2.priv_data->rx_gl_flag);
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /*SPI2_USING_DMA*/
+#ifdef SPI3_USING_DMA
+static const struct stm32_spi_dma_private dma3_priv =
+{
+    DMA2_Channel2,
+    DMA2_Channel1,
+    DMA2_FLAG_TC2,
+    DMA2_FLAG_TE2,
+    DMA2_FLAG_TC1,
+    DMA2_FLAG_TE1,
+    DMA2_Channel2_IRQn,
+    DMA2_Channel1_IRQn,
+    DMA2_FLAG_GL2,
+    DMA2_FLAG_GL1,
+};
+static struct stm32_spi_dma dma3 =
+{
+    &dma3_priv,
+};
+void DMA2_Channel1_IRQHandler(void) {
+    /* enter interrupt */
+    rt_interrupt_enter();
+    rt_event_send(&dma3.event, SPI_DMA_TX_DONE);
+    DMA_ClearFlag(dma3.priv_data->tx_gl_flag);
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+void DMA2_Channel2_IRQHandler(void) {
+    /* enter interrupt */
+    rt_interrupt_enter();
+    rt_event_send(&dma3.event, SPI_DMA_RX_DONE);
+    DMA_ClearFlag(dma3.priv_data->rx_gl_flag);
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /*SPI3_USING_DMA*/
+
+#endif /*SPI_USE_DMA*/
 
 rt_inline uint16_t get_spi_BaudRatePrescaler(rt_uint32_t max_hz)
 {
     uint16_t SPI_BaudRatePrescaler;
 
     /* STM32F10x SPI MAX 18Mhz */
-    if(max_hz >= SystemCoreClock/2 && SystemCoreClock/2 <= 18000000)
+    if(max_hz >= SystemCoreClock/2 && SystemCoreClock/2 <= 36000000)
     {
         SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
     }
@@ -208,27 +309,30 @@ static rt_uint32_t xfer(struct rt_spi_device* device, struct rt_spi_message* mes
     rt_uint32_t size = message->length;
 
     /* take CS */
-    if(message->cs_take)
+    if(message->cs_take && stm32_spi_cs)
     {
         GPIO_ResetBits(stm32_spi_cs->GPIOx, stm32_spi_cs->GPIO_Pin);
     }
-
 #ifdef SPI_USE_DMA
-    if(message->length > 32)
+    if(
+       (stm32_spi_bus->parent.parent.flag & (RT_DEVICE_FLAG_DMA_RX | RT_DEVICE_FLAG_DMA_TX)) &&
+        stm32_spi_bus->dma &&
+        message->length > 32)
     {
         if(config->data_width <= 8)
         {
+            rt_uint32_t ev = 0;
             DMA_Configuration(stm32_spi_bus, message->send_buf, message->recv_buf, message->length);
             SPI_I2S_DMACmd(SPI, SPI_I2S_DMAReq_Tx | SPI_I2S_DMAReq_Rx, ENABLE);
-            while (DMA_GetFlagStatus(stm32_spi_bus->DMA_Channel_RX_FLAG_TC) == RESET
-                    || DMA_GetFlagStatus(stm32_spi_bus->DMA_Channel_TX_FLAG_TC) == RESET);
+            rt_event_recv(&stm32_spi_bus->dma->event, SPI_DMA_COMPLETE,
+                    RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER, &ev);
             SPI_I2S_DMACmd(SPI, SPI_I2S_DMAReq_Tx | SPI_I2S_DMAReq_Rx, DISABLE);
+            DMA_ITConfig(stm32_spi_bus->dma->priv_data->DMA_Channel_TX, DMA_IT_TC, DISABLE);
+            DMA_ITConfig(stm32_spi_bus->dma->priv_data->DMA_Channel_RX, DMA_IT_TC, DISABLE);
         }
-//        rt_memcpy(buffer,_spi_flash_buffer,DMA_BUFFER_SIZE);
-//        buffer += DMA_BUFFER_SIZE;
     }
     else
-#endif
+#endif /*SPI_USE_DMA*/
     {
         if(config->data_width <= 8)
         {
@@ -293,7 +397,7 @@ static rt_uint32_t xfer(struct rt_spi_device* device, struct rt_spi_message* mes
     }
 
     /* release CS */
-    if(message->cs_release)
+    if(message->cs_release && stm32_spi_cs)
     {
         GPIO_SetBits(stm32_spi_cs->GPIOx, stm32_spi_cs->GPIO_Pin);
     }
@@ -313,60 +417,97 @@ rt_err_t stm32_spi_register(SPI_TypeDef * SPI,
                             struct stm32_spi_bus * stm32_spi,
                             const char * spi_bus_name)
 {
+    rt_err_t res = RT_EOK;
+    NVIC_InitTypeDef NVIC_InitStructure;
     RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
-
+    rt_uint32_t flags = 0;
     if(SPI == SPI1)
     {
     	stm32_spi->SPI = SPI1;
 #ifdef SPI_USE_DMA
-        /* Enable the DMA1 Clock */
-        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
-
-        stm32_spi->DMA_Channel_RX = DMA1_Channel2;
-        stm32_spi->DMA_Channel_TX = DMA1_Channel3;
-        stm32_spi->DMA_Channel_RX_FLAG_TC = DMA1_FLAG_TC2;
-        stm32_spi->DMA_Channel_RX_FLAG_TE = DMA1_FLAG_TE2;
-        stm32_spi->DMA_Channel_TX_FLAG_TC = DMA1_FLAG_TC3;
-        stm32_spi->DMA_Channel_TX_FLAG_TE = DMA1_FLAG_TE3;
-#endif
+#ifdef SPI1_USING_DMA
+        {
+            rt_event_init(&dma1.event, "spi1ev", RT_IPC_FLAG_FIFO);
+            stm32_spi->dma = &dma1;
+            /* rx dma interrupt config */
+            NVIC_InitStructure.NVIC_IRQChannel = dma1.priv_data->tx_irq_ch;
+            NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
+            NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
+            NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+            NVIC_Init(&NVIC_InitStructure);
+            NVIC_InitStructure.NVIC_IRQChannel = dma1.priv_data->rx_irq_ch;
+            NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+            NVIC_Init(&NVIC_InitStructure);
+            /* Enable the DMA1 Clock */
+            RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
+            flags |= RT_DEVICE_FLAG_DMA_RX | RT_DEVICE_FLAG_DMA_TX;
+        }
+#else /*!SPI1_USING_DMA*/
+        stm32_spi->dma = RT_NULL;
+#endif /*SPI1_USING_DMA*/
+#endif /*SPI_USE_DMA*/
         RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
     }
     else if(SPI == SPI2)
     {
         stm32_spi->SPI = SPI2;
 #ifdef SPI_USE_DMA
-        /* Enable the DMA1 Clock */
-        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
-
-        stm32_spi->DMA_Channel_RX = DMA1_Channel4;
-        stm32_spi->DMA_Channel_TX = DMA1_Channel5;
-        stm32_spi->DMA_Channel_RX_FLAG_TC = DMA1_FLAG_TC4;
-        stm32_spi->DMA_Channel_RX_FLAG_TE = DMA1_FLAG_TE4;
-        stm32_spi->DMA_Channel_TX_FLAG_TC = DMA1_FLAG_TC5;
-        stm32_spi->DMA_Channel_TX_FLAG_TE = DMA1_FLAG_TE5;
-#endif
+#ifdef SPI2_USING_DMA
+        {
+            rt_event_init(&dma2.event, "spi2ev", RT_IPC_FLAG_FIFO);
+            stm32_spi->dma = &dma2;
+            /* rx dma interrupt config */
+            NVIC_InitStructure.NVIC_IRQChannel = dma2.priv_data->tx_irq_ch;
+            NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
+            NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
+            NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+            NVIC_Init(&NVIC_InitStructure);
+            NVIC_InitStructure.NVIC_IRQChannel = dma2.priv_data->rx_irq_ch;
+            NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+            NVIC_Init(&NVIC_InitStructure);
+            /* Enable the DMA1 Clock */
+            RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
+            flags |= RT_DEVICE_FLAG_DMA_RX | RT_DEVICE_FLAG_DMA_TX;
+        }
+#else /*!SPI2_USING_DMA*/
+        stm32_spi->dma = RT_NULL;
+#endif /*SPI2_USING_DMA*/
+#endif /*SPI_USE_DMA*/
         RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
     }
     else if(SPI == SPI3)
     {
     	stm32_spi->SPI = SPI3;
 #ifdef SPI_USE_DMA
-        /* Enable the DMA2 Clock */
-        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);
-
-        stm32_spi->DMA_Channel_RX = DMA2_Channel1;
-        stm32_spi->DMA_Channel_TX = DMA2_Channel2;
-        stm32_spi->DMA_Channel_RX_FLAG_TC = DMA2_FLAG_TC1;
-        stm32_spi->DMA_Channel_RX_FLAG_TE = DMA2_FLAG_TE1;
-        stm32_spi->DMA_Channel_TX_FLAG_TC = DMA2_FLAG_TC2;
-        stm32_spi->DMA_Channel_TX_FLAG_TE = DMA2_FLAG_TE2;
-#endif
+#ifdef SPI3_USING_DMA
+        {
+            rt_event_init(&dma3.event, "spi3ev", RT_IPC_FLAG_FIFO);
+            stm32_spi->dma = &dma3;
+            /* rx dma interrupt config */
+            NVIC_InitStructure.NVIC_IRQChannel = dma3.priv_data->tx_irq_ch;
+            NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
+            NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
+            NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+            NVIC_Init(&NVIC_InitStructure);
+            NVIC_InitStructure.NVIC_IRQChannel = dma3.priv_data->rx_irq_ch;
+            NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+            NVIC_Init(&NVIC_InitStructure);
+            /* Enable the DMA1 Clock */
+            RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
+            flags |= RT_DEVICE_FLAG_DMA_RX | RT_DEVICE_FLAG_DMA_TX;
+        }
+#else /*!SPI3_USING_DMA*/
+        stm32_spi->dma = RT_NULL;
+#endif /*SPI3_USING_DMA*/
+#endif /*SPI_USE_DMA*/
         RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3, ENABLE);
     }
     else
     {
         return RT_ENOSYS;
     }
+    res = rt_spi_bus_register(&stm32_spi->parent, spi_bus_name, &stm32_spi_ops);
+    stm32_spi->parent.parent.flag |= flags;
 
-    return rt_spi_bus_register(&stm32_spi->parent, spi_bus_name, &stm32_spi_ops);
+    return res;
 }

bsp/stm32f107/drivers/rt_stm32f10x_spi.h

@@ -8,19 +8,41 @@
 
 #include "board.h"
 
-//#define SPI_USE_DMA
+#if defined(SPI1_USING_DMA) || defined(SPI2_USING_DMA) ||  defined(SPI3_USING_DMA)
+#define SPI_USE_DMA
+#endif /*defined(SPI1_USING_DMA) || defined(SPI2_USING_DMA) ||  defined(SPI3_USING_DMA)*/
 
-struct stm32_spi_bus
-{
-    struct rt_spi_bus parent;
-    SPI_TypeDef * SPI;
 #ifdef SPI_USE_DMA
+
+#define SPI_DMA_RX_DONE    0x01
+#define SPI_DMA_TX_DONE    0x02
+#define SPI_DMA_COMPLETE   (SPI_DMA_RX_DONE | SPI_DMA_TX_DONE)
+
+struct stm32_spi_dma_private
+{
     DMA_Channel_TypeDef * DMA_Channel_TX;
     DMA_Channel_TypeDef * DMA_Channel_RX;
     uint32_t DMA_Channel_TX_FLAG_TC;
     uint32_t DMA_Channel_TX_FLAG_TE;
     uint32_t DMA_Channel_RX_FLAG_TC;
     uint32_t DMA_Channel_RX_FLAG_TE;
+    uint8_t tx_irq_ch;
+    uint8_t rx_irq_ch;
+    uint32_t tx_gl_flag;
+    uint32_t rx_gl_flag;
+};
+struct stm32_spi_dma
+{
+    const struct stm32_spi_dma_private *priv_data;
+    struct rt_event event;
+};
+#endif /*SPI_USE_DMA*/
+struct stm32_spi_bus
+{
+    struct rt_spi_bus parent;
+    SPI_TypeDef * SPI;
+#ifdef SPI_USE_DMA
+    struct stm32_spi_dma *dma;
 #endif /* SPI_USE_DMA */
 };