drivers: i2s: stm32 sai add support for stm32f4xx series

STM32F4xx series shares several DMA configurations with
the other platforms. These changes aim to enable platform
specific DMA configuration and align them to other platforms.

Signed-off-by: Mario Paja <[email protected]>

Author: mariopaja

drivers/i2s/Kconfig.stm32

@@ -35,6 +35,7 @@ menuconfig I2S_STM32_SAI
 	select USE_STM32_HAL_DMA
 	select USE_STM32_HAL_DMA_EX
 	select USE_STM32_HAL_SAI
+	select USE_STM32_HAL_SAI_EX if SOC_SERIES_STM32F4X
 	help
 	  Enable SAI support on the STM32 family of processors.
 

drivers/i2s/i2s_stm32_sai.c

@@ -283,11 +283,17 @@ static int i2s_stm32_sai_dma_init(const struct device *dev)
 	}
 
 	hdma->Instance = STM32_DMA_GET_INSTANCE(stream->reg, stream->dma_channel);
+#if defined(CONFIG_SOC_SERIES_STM32F4X)
+	hdma->Init.Channel = dma_cfg.dma_slot * DMA_CHANNEL_1;
+#else
 	hdma->Init.Request = dma_cfg.dma_slot;
+#endif
 	hdma->Init.Mode = DMA_NORMAL;
 
 #if defined(CONFIG_SOC_SERIES_STM32H7X) || defined(CONFIG_SOC_SERIES_STM32L4X) ||                  \
-	defined(CONFIG_SOC_SERIES_STM32G4X) || defined(CONFIG_SOC_SERIES_STM32L5X)
+	defined(CONFIG_SOC_SERIES_STM32G4X) || defined(CONFIG_SOC_SERIES_STM32L5X) ||              \
+	defined(CONFIG_SOC_SERIES_STM32F4X)
+
 	hdma->Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
 	hdma->Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
 	hdma->Init.Priority = DMA_PRIORITY_HIGH;
@@ -304,15 +310,16 @@ static int i2s_stm32_sai_dma_init(const struct device *dev)
 	hdma->Init.TransferEventMode = DMA_TCEM_BLOCK_TRANSFER;
 #endif
 
-#if defined(CONFIG_SOC_SERIES_STM32H7X)
+#if defined(CONFIG_SOC_SERIES_STM32H7X) || defined(CONFIG_SOC_SERIES_STM32F4X)
 	hdma->Init.FIFOMode = DMA_FIFOMODE_DISABLE;
 #endif
 
 	if (stream->dma_cfg.channel_direction == (enum dma_channel_direction)MEMORY_TO_PERIPHERAL) {
 		hdma->Init.Direction = DMA_MEMORY_TO_PERIPH;
 
 #if !defined(CONFIG_SOC_SERIES_STM32H7X) && !defined(CONFIG_SOC_SERIES_STM32L4X) &&                \
-	!defined(CONFIG_SOC_SERIES_STM32G4X) && !defined(CONFIG_SOC_SERIES_STM32L5X)
+	!defined(CONFIG_SOC_SERIES_STM32G4X) && !defined(CONFIG_SOC_SERIES_STM32L5X) &&            \
+	!defined(CONFIG_SOC_SERIES_STM32F4X)
 		hdma->Init.SrcInc = DMA_SINC_INCREMENTED;
 		hdma->Init.DestInc = DMA_DINC_FIXED;
 #endif
@@ -322,7 +329,8 @@ static int i2s_stm32_sai_dma_init(const struct device *dev)
 		hdma->Init.Direction = DMA_PERIPH_TO_MEMORY;
 
 #if !defined(CONFIG_SOC_SERIES_STM32H7X) && !defined(CONFIG_SOC_SERIES_STM32L4X) &&                \
-	!defined(CONFIG_SOC_SERIES_STM32G4X) && !defined(CONFIG_SOC_SERIES_STM32L5X)
+	!defined(CONFIG_SOC_SERIES_STM32G4X) && !defined(CONFIG_SOC_SERIES_STM32L5X) &&            \
+	!defined(CONFIG_SOC_SERIES_STM32F4X)
 		hdma->Init.SrcInc = DMA_SINC_FIXED;
 		hdma->Init.DestInc = DMA_DINC_INCREMENTED;
 #endif
@@ -342,7 +350,8 @@ static int i2s_stm32_sai_dma_init(const struct device *dev)
 		return -EIO;
 	}
 #elif !defined(CONFIG_SOC_SERIES_STM32H7X) && !defined(CONFIG_SOC_SERIES_STM32L4X) &&              \
-	!defined(CONFIG_SOC_SERIES_STM32G4X) && !defined(CONFIG_SOC_SERIES_STM32L5X)
+	!defined(CONFIG_SOC_SERIES_STM32G4X) && !defined(CONFIG_SOC_SERIES_STM32L5X) &&            \
+	!defined(CONFIG_SOC_SERIES_STM32F4X)
 	if (HAL_DMA_ConfigChannelAttributes(&dev_data->hdma, DMA_CHANNEL_NPRIV) != HAL_OK) {
 		LOG_ERR("HAL_DMA_ConfigChannelAttributes: <Failed>");
 		return -EIO;
@@ -458,7 +467,7 @@ static int i2s_stm32_sai_configure(const struct device *dev, enum i2s_dir dir,
 	}
 
 	/* Control of MCLK output from SAI configuration is not possible on STM32L4xx MCUs */
-#if !defined(CONFIG_SOC_SERIES_STM32L4X)
+#if !defined(CONFIG_SOC_SERIES_STM32L4X) && !defined(CONFIG_SOC_SERIES_STM32F4X)
 	if (cfg->mclk_enable && stream->master) {
 		hsai->Init.MckOutput = SAI_MCK_OUTPUT_ENABLE;
 	} else {
@@ -472,7 +481,7 @@ static int i2s_stm32_sai_configure(const struct device *dev, enum i2s_dir dir,
 		hsai->Init.NoDivider = SAI_MASTERDIVIDER_ENABLE;
 
 		/* MckOverSampling is not supported by all STM32L4xx MCUs */
-#if !defined(CONFIG_SOC_SERIES_STM32L4X)
+#if !defined(CONFIG_SOC_SERIES_STM32L4X) && !defined(CONFIG_SOC_SERIES_STM32F4X)
 		if (cfg->mclk_div == (enum mclk_divider)MCLK_DIV_256) {
 			hsai->Init.MckOverSampling = SAI_MCK_OVERSAMPLING_DISABLE;
 		} else {