audio_dmic.h

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#ifndef INFUSE_SDK_INCLUDE_INFUSE_TASK_RUNNER_TASKS_AUDIO_DMIC_H_
#define INFUSE_SDK_INCLUDE_INFUSE_TASK_RUNNER_TASKS_AUDIO_DMIC_H_
 
#include <zephyr/kernel.h>
#include <zephyr/audio/dmic.h>
 
#include <infuse/drivers/imu.h>
#include <infuse/task_runner/task.h>
#include <infuse/task_runner/schedule.h>
 
#include <infuse/task_runner/tasks/infuse_task_ids.h>
 
#ifdef __cplusplus
extern "C" {
#endif


struct task_audio_dmic_config {
        const struct device *dev;
        struct pdm_io_cfg io_cfg;
        enum pdm_lr pdm_chan;
};

void dmic_task_fn(const struct task_schedule *schedule, struct k_poll_signal *terminate,
                  void *dmic_dev);
 
/* Helper macro for defining static memory */
#define _AUDIO_DMIC_MEM(dmic_node)                                                                 \
        K_THREAD_STACK_DEFINE(dmic_stack_area, CONFIG_TASK_RUNNER_TASK_AUDIO_DMIC_STACK_SIZE);     \
        static const struct task_audio_dmic_config dmic_config = {                                 \
                .dev = DEVICE_DT_GET(dmic_node),                                                   \
                .io_cfg = PDM_DT_IO_CFG_GET(dmic_node),                                            \
                .pdm_chan = PDM_DT_HAS_LEFT_CHANNEL(dmic_node) ? PDM_CHAN_LEFT : PDM_CHAN_RIGHT,   \
        };                                                                                         \
        struct k_thread dmic_thread_obj
 
/* Helper macro for defining configuration */
#define _AUDIO_DMIC_CONFIG(dmic_node)                                                              \
        {                                                                                          \
                .name = "mic",                                                                     \
                .task_id = TASK_ID_AUDIO_DMIC,                                                     \
                .exec_type = TASK_EXECUTOR_THREAD,                                                 \
                .task_arg.const_arg = &dmic_config,                                                \
                .executor.thread =                                                                 \
                        {                                                                          \
                                .thread = &dmic_thread_obj,                                        \
                                .task_fn = dmic_task_fn,                                           \
                                .stack = dmic_stack_area,                                          \
                                .stack_size = K_THREAD_STACK_SIZEOF(dmic_stack_area),              \
                        },                                                                         \
        }

#define AUDIO_DMIC_TASK(define_mem, define_config, dmic_node)                                      \
        IF_ENABLED(define_mem, (_AUDIO_DMIC_MEM(dmic_node)))                                       \
        IF_ENABLED(define_config, (_AUDIO_DMIC_CONFIG(dmic_node)))

 
#ifdef __cplusplus
}
#endif
 
#endif /* INFUSE_SDK_INCLUDE_INFUSE_TASK_RUNNER_TASKS_AUDIO_DMIC_H_ */