diff options
Diffstat (limited to 'dma')
| -rw-r--r-- | dma/SConscript | 29 | ||||
| -rw-r--r-- | dma/dma.h | 60 | ||||
| -rw-r--r-- | dma/stm32_dma.h | 43 | ||||
| -rw-r--r-- | dma/stm32_dmamux.h | 30 |
4 files changed, 102 insertions, 60 deletions
diff --git a/dma/SConscript b/dma/SConscript new file mode 100644 index 0000000..2ee2444 --- /dev/null +++ b/dma/SConscript @@ -0,0 +1,29 @@ +Import('env') + +headers = [] +instances = [] +sources = [] +aliases = {} + +periph = env['PLATFORM_SPEC'].get('periph', {}) + +if 'stm32_dmamux' in periph: + headers.append('stm32_dmamux.h') + for name, data in periph['stm32_dmamux'].items(): + instances.append({ + 'type': 'STM32_DMAMUX_t<STM32_DMAMUX_reg_%s_t>' % data['type'], + 'name': name, + 'args': [data['offset']], + }) +if 'stm32_dma' in periph: + headers.append('stm32_dma.h') + for name, data in periph['stm32_dma'].items(): + instances.append({ + 'type': 'STM32_DMA_t<STM32_DMA_reg_%s_t>' % data['type'], + 'name': name, + 'args': [data['offset']], + }) +env.Jinja2('dma.h', '../templates/periph_instances.h.j2', headers = headers, instances = instances, aliases = aliases) + + +Return('sources')
\ No newline at end of file diff --git a/dma/dma.h b/dma/dma.h deleted file mode 100644 index 4d9b8d6..0000000 --- a/dma/dma.h +++ /dev/null @@ -1,60 +0,0 @@ -#ifndef DMA_H -#define DMA_H - -#include <stdint.h> - -#if defined(STM32F3) -struct DMA_channel_reg_t { - volatile uint32_t CR; - volatile uint32_t NDTR; - volatile uint32_t PAR; - volatile uint32_t MAR; - uint32_t _reserved; -}; - -struct DMA_reg_t { - volatile uint32_t ISR; - volatile uint32_t IFCR; - DMA_channel_reg_t C[7]; -}; - -class DMA_t { - public: - DMA_reg_t& reg; - - DMA_t(uint32_t reg_addr) : reg(*(DMA_reg_t*)reg_addr) {} -}; - -static DMA_t DMA1(0x40020000); -static DMA_t DMA2(0x40020400); - -#elif defined(STM32F4) -struct DMA_stream_reg_t { - volatile uint32_t CR; - volatile uint32_t NDTR; - volatile uint32_t PAR; - volatile uint32_t M0AR; - volatile uint32_t M1AR; - volatile uint32_t FCR; -}; - -struct DMA_reg_t { - volatile uint32_t LISR; - volatile uint32_t HISR; - volatile uint32_t LIFCR; - volatile uint32_t HIFCR; - DMA_stream_reg_t S[8]; -}; - -class DMA_t { - public: - DMA_reg_t& reg; - - DMA_t(uint32_t reg_addr) : reg(*(DMA_reg_t*)reg_addr) {} -}; - -static DMA_t DMA1(0x40026000); -static DMA_t DMA2(0x40026400); -#endif - -#endif diff --git a/dma/stm32_dma.h b/dma/stm32_dma.h new file mode 100644 index 0000000..afeaed5 --- /dev/null +++ b/dma/stm32_dma.h @@ -0,0 +1,43 @@ +#pragma once + +#include <stdint.h> +#include <mmio/mmio.h> + +struct STM32_DMA_channel_reg_v1_t { + volatile uint32_t CR; + volatile uint32_t NDTR; + volatile uint32_t PAR; + volatile uint32_t MAR; + uint32_t _reserved; +}; + +struct STM32_DMA_reg_v1_t { + volatile uint32_t ISR; + volatile uint32_t IFCR; + STM32_DMA_channel_reg_v1_t C[7]; +}; + + +struct STM32_DMA_stream_reg_v2_t { + volatile uint32_t CR; + volatile uint32_t NDTR; + volatile uint32_t PAR; + volatile uint32_t M0AR; + volatile uint32_t M1AR; + volatile uint32_t FCR; +}; + +struct STM32_DMA_reg_v2_t { + volatile uint32_t LISR; + volatile uint32_t HISR; + volatile uint32_t LIFCR; + volatile uint32_t HIFCR; + STM32_DMA_stream_reg_v2_t S[8]; +}; + + +template <typename T> +class STM32_DMA_t : public mmio_ptr<T> { + public: + using mmio_ptr<T>::ptr; +}; diff --git a/dma/stm32_dmamux.h b/dma/stm32_dmamux.h new file mode 100644 index 0000000..064393a --- /dev/null +++ b/dma/stm32_dmamux.h @@ -0,0 +1,30 @@ +#pragma once + +#include <stdint.h> +#include <mmio/mmio.h> + +struct STM32_DMAMUX_reg_v1_t { + /** + * Not all parts offer all channels! + * WB: 14, G4: 16... + */ + volatile uint32_t CCR[20]; + volatile uint32_t _reserved1[12]; + volatile uint32_t CSR; // 0x80 + volatile uint32_t CFR; // 0x84 + volatile uint32_t _reserved2[30]; + /** + * Not all parts offer all requests! + * WB/G4: 4, H7: 8 + */ + volatile uint32_t RGCR[8]; // 0x100 + volatile uint32_t _reserved3[8]; + volatile uint32_t RGSR; // 0x140 + volatile uint32_t RGCFR; +}; + +template <typename T> +class STM32_DMAMUX_t : public mmio_ptr<T> { + public: + using mmio_ptr<T>::ptr; +};
\ No newline at end of file |