precision-converters-firmware
stm32_tdm_support.h
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1 /***************************************************************************/
13 #ifndef STM32_TDM_SUPPORT_H_
14 #define STM32_TDM_SUPPORT_H_
15 
16 /******************************************************************************/
17 /***************************** Include Files **********************************/
18 /******************************************************************************/
19 
20 #include <stdint.h>
21 #include <stdbool.h>
22 #include "no_os_circular_buffer.h"
23 #include "iio_types.h"
24 #include "no_os_tdm.h"
25 
26 /******************************************************************************/
27 /************************ Macros/Constants ************************************/
28 /******************************************************************************/
29 
30 /******************************************************************************/
31 /************************ Public Declarations *********************************/
32 /******************************************************************************/
33 
34 extern volatile bool dma_buffer_full;
35 extern uint8_t *dma_buff;
36 int32_t start_tdm_dma_to_cb_transfer(struct no_os_tdm_desc *tdm_desc,
37  struct iio_device_data *iio_dev_data, uint32_t buffer_size,
38  uint8_t bytes_per_sample, uint32_t n_samples_tdm_read);
39 void update_dma_buffer_overflow(void);
40 int32_t end_tdm_dma_to_cb_transfer(struct no_os_tdm_desc *tdm_desc,
41  struct iio_device_data *iio_dev_data,
42  uint32_t buffer_size, uint8_t bytes_per_sample);
43 
44 #endif // STM32_TDM_SUPPORT_H_
start_tdm_dma_to_cb_transfer
int32_t start_tdm_dma_to_cb_transfer(struct no_os_tdm_desc *tdm_desc, struct iio_device_data *iio_dev_data, uint32_t buffer_size, uint8_t bytes_per_sample, uint32_t n_samples_tdm_read)
Read TDM DMA Data into the buffer.
Definition: stm32_tdm_support.c:49
end_tdm_dma_to_cb_transfer
int32_t end_tdm_dma_to_cb_transfer(struct no_os_tdm_desc *tdm_desc, struct iio_device_data *iio_dev_data, uint32_t buffer_size, uint8_t bytes_per_sample)
Update circular buffer indices and prepare for next async write via DMA.
Definition: stm32_tdm_support.c:93
dma_buffer_full
volatile bool dma_buffer_full
Definition: stm32_tdm_support.c:28
dma_buff
uint8_t * dma_buff
Definition: stm32_tdm_support.c:31
update_dma_buffer_overflow
void update_dma_buffer_overflow(void)
Update the TDM DMA buffer overflow flag.
Definition: stm32_tdm_support.c:80
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