96c92ed93f
When checking for IRQ flags, we should also check for IRQ status (IsEnabled ?). If this is not done we can end up in Half Transfer interrupt processing while it is not enabled. Additionaly always use the id translation function in LL API calls. Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
119 lines
4 KiB
C
119 lines
4 KiB
C
/*
|
|
* Copyright (c) 2019 Song Qiang <songqiang1304521@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#ifndef DMA_STM32_H_
|
|
#define DMA_STM32_H_
|
|
|
|
#include <soc.h>
|
|
#include <stm32_ll_dma.h>
|
|
#include <drivers/dma.h>
|
|
#include <drivers/clock_control/stm32_clock_control.h>
|
|
|
|
/* Maximum data sent in single transfer (Bytes) */
|
|
#define DMA_STM32_MAX_DATA_ITEMS 0xffff
|
|
|
|
struct dma_stm32_stream {
|
|
uint32_t direction;
|
|
#ifdef CONFIG_DMAMUX_STM32
|
|
int mux_channel; /* stores the dmamux channel */
|
|
#endif /* CONFIG_DMAMUX_STM32 */
|
|
bool source_periph;
|
|
bool hal_override;
|
|
volatile bool busy;
|
|
uint32_t src_size;
|
|
uint32_t dst_size;
|
|
void *user_data; /* holds the client data */
|
|
dma_callback_t dma_callback;
|
|
};
|
|
|
|
struct dma_stm32_data {
|
|
};
|
|
|
|
struct dma_stm32_config {
|
|
struct stm32_pclken pclken;
|
|
void (*config_irq)(const struct device *dev);
|
|
bool support_m2m;
|
|
uint32_t base;
|
|
uint32_t max_streams;
|
|
#ifdef CONFIG_DMAMUX_STM32
|
|
uint8_t offset; /* position in the list of dmamux channel list */
|
|
#endif
|
|
struct dma_stm32_stream *streams;
|
|
};
|
|
|
|
#ifdef CONFIG_DMA_STM32_V1
|
|
/* from DTS the dma stream id is in range 0..<dma-requests>-1 */
|
|
#define STREAM_OFFSET 0
|
|
#else
|
|
/* from DTS the dma stream id is in range 1..<dma-requests> */
|
|
/* so decrease to set range from 0 from now on */
|
|
#define STREAM_OFFSET 1
|
|
#endif /* CONFIG_DMA_STM32_V1 */
|
|
|
|
uint32_t dma_stm32_id_to_stream(uint32_t id);
|
|
#ifdef CONFIG_DMA_STM32_V1
|
|
uint32_t dma_stm32_slot_to_channel(uint32_t id);
|
|
#endif
|
|
|
|
typedef void (*dma_stm32_clear_flag_func)(DMA_TypeDef *DMAx);
|
|
typedef uint32_t (*dma_stm32_check_flag_func)(DMA_TypeDef *DMAx);
|
|
|
|
bool dma_stm32_is_tc_active(DMA_TypeDef *DMAx, uint32_t id);
|
|
void dma_stm32_clear_tc(DMA_TypeDef *DMAx, uint32_t id);
|
|
bool dma_stm32_is_ht_active(DMA_TypeDef *DMAx, uint32_t id);
|
|
void dma_stm32_clear_ht(DMA_TypeDef *DMAx, uint32_t id);
|
|
bool dma_stm32_is_te_active(DMA_TypeDef *DMAx, uint32_t id);
|
|
void dma_stm32_clear_te(DMA_TypeDef *DMAx, uint32_t id);
|
|
|
|
#ifdef CONFIG_DMA_STM32_V1
|
|
bool dma_stm32_is_dme_active(DMA_TypeDef *DMAx, uint32_t id);
|
|
void dma_stm32_clear_dme(DMA_TypeDef *DMAx, uint32_t id);
|
|
bool dma_stm32_is_fe_active(DMA_TypeDef *DMAx, uint32_t id);
|
|
void dma_stm32_clear_fe(DMA_TypeDef *DMAx, uint32_t id);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DMA_STM32_V2
|
|
bool dma_stm32_is_gi_active(DMA_TypeDef *DMAx, uint32_t id);
|
|
void dma_stm32_clear_gi(DMA_TypeDef *DMAx, uint32_t id);
|
|
#endif
|
|
|
|
bool stm32_dma_is_irq_active(DMA_TypeDef *dma, uint32_t id);
|
|
bool stm32_dma_is_ht_irq_active(DMA_TypeDef *dma, uint32_t id);
|
|
bool stm32_dma_is_tc_irq_active(DMA_TypeDef *dma, uint32_t id);
|
|
|
|
void stm32_dma_dump_stream_irq(DMA_TypeDef *dma, uint32_t id);
|
|
void stm32_dma_clear_stream_irq(DMA_TypeDef *dma, uint32_t id);
|
|
bool stm32_dma_is_irq_happened(DMA_TypeDef *dma, uint32_t id);
|
|
bool stm32_dma_is_unexpected_irq_happened(DMA_TypeDef *dma, uint32_t id);
|
|
void stm32_dma_enable_stream(DMA_TypeDef *dma, uint32_t id);
|
|
int stm32_dma_disable_stream(DMA_TypeDef *dma, uint32_t id);
|
|
void stm32_dma_config_channel_function(DMA_TypeDef *dma, uint32_t id, uint32_t slot);
|
|
|
|
#ifdef CONFIG_DMA_STM32_V1
|
|
void stm32_dma_disable_fifo_irq(DMA_TypeDef *dma, uint32_t id);
|
|
bool stm32_dma_check_fifo_mburst(LL_DMA_InitTypeDef *DMAx);
|
|
uint32_t stm32_dma_get_fifo_threshold(uint16_t fifo_mode_control);
|
|
uint32_t stm32_dma_get_mburst(struct dma_config *config, bool source_periph);
|
|
uint32_t stm32_dma_get_pburst(struct dma_config *config, bool source_periph);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DMAMUX_STM32
|
|
/* dma_stm32_ api functions are exported to the dmamux_stm32 */
|
|
#define DMA_STM32_EXPORT_API
|
|
int dma_stm32_configure(const struct device *dev, uint32_t id,
|
|
struct dma_config *config);
|
|
int dma_stm32_reload(const struct device *dev, uint32_t id,
|
|
uint32_t src, uint32_t dst, size_t size);
|
|
int dma_stm32_start(const struct device *dev, uint32_t id);
|
|
int dma_stm32_stop(const struct device *dev, uint32_t id);
|
|
int dma_stm32_get_status(const struct device *dev, uint32_t id,
|
|
struct dma_status *stat);
|
|
#else
|
|
#define DMA_STM32_EXPORT_API static
|
|
#endif /* CONFIG_DMAMUX_STM32 */
|
|
|
|
#endif /* DMA_STM32_H_*/
|