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96 lines
3.0 KiB
96 lines
3.0 KiB
/* |
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* Copyright (c) 2023 Jeroen van Dooren, Nobleo Technology |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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*/ |
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#ifndef BDMA_STM32_H_ |
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#define BDMA_STM32_H_ |
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#include <soc.h> |
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#include <stm32_ll_bdma.h> |
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#include <zephyr/drivers/dma.h> |
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#include <zephyr/drivers/clock_control/stm32_clock_control.h> |
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#include <zephyr/drivers/dma/dma_stm32.h> |
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/* Maximum data sent in single transfer (Bytes) */ |
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#define BDMA_STM32_MAX_DATA_ITEMS 0xffff |
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struct bdma_stm32_channel { |
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uint32_t direction; |
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#ifdef CONFIG_DMAMUX_STM32 |
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int mux_channel; /* stores the dmamux channel */ |
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#endif /* CONFIG_DMAMUX_STM32 */ |
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bool source_periph; |
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bool hal_override; |
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volatile bool busy; |
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uint32_t src_size; |
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uint32_t dst_size; |
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void *user_data; /* holds the client data */ |
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dma_callback_t bdma_callback; |
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bool cyclic; |
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}; |
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struct bdma_stm32_data { |
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struct dma_context dma_ctx; |
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}; |
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struct bdma_stm32_config { |
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struct stm32_pclken pclken; |
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void (*config_irq)(const struct device *dev); |
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bool support_m2m; |
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uint32_t base; |
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uint32_t max_channels; |
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#ifdef CONFIG_DMAMUX_STM32 |
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uint8_t offset; /* position in the list of bdmamux channel list */ |
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#endif |
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struct bdma_stm32_channel *channels; |
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}; |
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uint32_t bdma_stm32_id_to_channel(uint32_t id); |
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#if !defined(CONFIG_DMAMUX_STM32) |
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uint32_t bdma_stm32_slot_to_channel(uint32_t id); |
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#endif |
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typedef void (*bdma_stm32_clear_flag_func)(BDMA_TypeDef *DMAx); |
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typedef uint32_t (*bdma_stm32_check_flag_func)(const BDMA_TypeDef *DMAx); |
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bool bdma_stm32_is_gi_active(BDMA_TypeDef *DMAx, uint32_t id); |
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void bdma_stm32_clear_gi(BDMA_TypeDef *DMAx, uint32_t id); |
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void bdma_stm32_clear_tc(BDMA_TypeDef *DMAx, uint32_t id); |
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void bdma_stm32_clear_ht(BDMA_TypeDef *DMAx, uint32_t id); |
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bool bdma_stm32_is_te_active(BDMA_TypeDef *DMAx, uint32_t id); |
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void bdma_stm32_clear_te(BDMA_TypeDef *DMAx, uint32_t id); |
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bool stm32_bdma_is_irq_active(BDMA_TypeDef *dma, uint32_t id); |
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bool stm32_bdma_is_ht_irq_active(BDMA_TypeDef *ma, uint32_t id); |
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bool stm32_bdma_is_tc_irq_active(BDMA_TypeDef *ma, uint32_t id); |
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void stm32_bdma_dump_channel_irq(BDMA_TypeDef *dma, uint32_t id); |
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void stm32_bdma_clear_channel_irq(BDMA_TypeDef *dma, uint32_t id); |
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bool stm32_bdma_is_irq_happened(BDMA_TypeDef *dma, uint32_t id); |
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void stm32_bdma_enable_channel(BDMA_TypeDef *dma, uint32_t id); |
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int stm32_bdma_disable_channel(BDMA_TypeDef *dma, uint32_t id); |
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#if !defined(CONFIG_DMAMUX_STM32) |
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void stm32_dma_config_channel_function(BDMA_TypeDef *dma, uint32_t id, |
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uint32_t slot); |
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#endif |
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#ifdef CONFIG_DMAMUX_STM32 |
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/* bdma_stm32_ api functions are exported to the bdmamux_stm32 */ |
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#define BDMA_STM32_EXPORT_API |
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int bdma_stm32_configure(const struct device *dev, uint32_t id, |
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struct dma_config *config); |
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int bdma_stm32_reload(const struct device *dev, uint32_t id, |
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uint32_t src, uint32_t dst, size_t size); |
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int bdma_stm32_start(const struct device *dev, uint32_t id); |
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int bdma_stm32_stop(const struct device *dev, uint32_t id); |
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int bdma_stm32_get_status(const struct device *dev, uint32_t id, |
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struct dma_status *stat); |
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#else |
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#define BDMA_STM32_EXPORT_API static |
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#endif /* CONFIG_DMAMUX_STM32 */ |
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#endif /* BDMA_STM32_H_*/
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