Line data    Source code

       1           0 : /*
       2             :  * Copyright (c) 2022 Intel Corporation
       3             :  *
       4             :  * SPDX-License-Identifier: Apache-2.0
       5             :  */
       6             : 
       7             : #ifndef ZEPHYR_LOG_BACKEND_ADSP_HDA_H_
       8             : #define ZEPHYR_LOG_BACKEND_ADSP_HDA_H_
       9             : 
      10             : #include <stdint.h>
      11             : 
      12             : /**
      13             :  *@brief HDA logger requires a hook for IPC messages
      14             :  *
      15             :  * When the log is flushed and written with DMA an IPC message should
      16             :  * be sent to inform the host. This hook function pointer allows for that
      17             :  */
      18           1 : typedef void(*adsp_hda_log_hook_t)(uint32_t written);
      19             : 
      20             : /**
      21             :  * @brief Initialize the Intel ADSP HDA logger
      22             :  *
      23             :  * @param hook Function is called after each HDA flush in order to
      24             :  *             inform the Host of DMA log data. This hook may be called
      25             :  *             from multiple CPUs and multiple calling contexts concurrently.
      26             :  *             It is up to the author of the hook to serialize if needed.
      27             :  *             It is guaranteed to be called once for every flush.
      28             :  * @param channel HDA stream (DMA Channel) to use for logging
      29             :  */
      30           1 : void adsp_hda_log_init(adsp_hda_log_hook_t hook, uint32_t channel);
      31             : 
      32             : #endif /* ZEPHYR_LOG_BACKEND_ADSP_HDA_H_ */