162306a36Sopenharmony_ci/* SPDX-License-Identifier: BSD-3-Clause-Clear */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright (c) 2019-2021 The Linux Foundation. All rights reserved. 462306a36Sopenharmony_ci * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. 562306a36Sopenharmony_ci */ 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#ifndef ATH12K_DBRING_H 862306a36Sopenharmony_ci#define ATH12K_DBRING_H 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci#include <linux/types.h> 1162306a36Sopenharmony_ci#include <linux/idr.h> 1262306a36Sopenharmony_ci#include <linux/spinlock.h> 1362306a36Sopenharmony_ci#include "dp.h" 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_cistruct ath12k_dbring_element { 1662306a36Sopenharmony_ci dma_addr_t paddr; 1762306a36Sopenharmony_ci u8 payload[]; 1862306a36Sopenharmony_ci}; 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_cistruct ath12k_dbring_data { 2162306a36Sopenharmony_ci void *data; 2262306a36Sopenharmony_ci u32 data_sz; 2362306a36Sopenharmony_ci struct ath12k_wmi_dma_buf_release_meta_data_params meta; 2462306a36Sopenharmony_ci}; 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_cistruct ath12k_dbring_buf_release_event { 2762306a36Sopenharmony_ci struct ath12k_wmi_dma_buf_release_fixed_params fixed; 2862306a36Sopenharmony_ci const struct ath12k_wmi_dma_buf_release_entry_params *buf_entry; 2962306a36Sopenharmony_ci const struct ath12k_wmi_dma_buf_release_meta_data_params *meta_data; 3062306a36Sopenharmony_ci u32 num_buf_entry; 3162306a36Sopenharmony_ci u32 num_meta; 3262306a36Sopenharmony_ci}; 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_cistruct ath12k_dbring_cap { 3562306a36Sopenharmony_ci u32 pdev_id; 3662306a36Sopenharmony_ci enum wmi_direct_buffer_module id; 3762306a36Sopenharmony_ci u32 min_elem; 3862306a36Sopenharmony_ci u32 min_buf_sz; 3962306a36Sopenharmony_ci u32 min_buf_align; 4062306a36Sopenharmony_ci}; 4162306a36Sopenharmony_ci 4262306a36Sopenharmony_cistruct ath12k_dbring { 4362306a36Sopenharmony_ci struct dp_srng refill_srng; 4462306a36Sopenharmony_ci struct idr bufs_idr; 4562306a36Sopenharmony_ci /* Protects bufs_idr */ 4662306a36Sopenharmony_ci spinlock_t idr_lock; 4762306a36Sopenharmony_ci dma_addr_t tp_addr; 4862306a36Sopenharmony_ci dma_addr_t hp_addr; 4962306a36Sopenharmony_ci int bufs_max; 5062306a36Sopenharmony_ci u32 pdev_id; 5162306a36Sopenharmony_ci u32 buf_sz; 5262306a36Sopenharmony_ci u32 buf_align; 5362306a36Sopenharmony_ci u32 num_resp_per_event; 5462306a36Sopenharmony_ci u32 event_timeout_ms; 5562306a36Sopenharmony_ci int (*handler)(struct ath12k *ar, struct ath12k_dbring_data *data); 5662306a36Sopenharmony_ci}; 5762306a36Sopenharmony_ci 5862306a36Sopenharmony_ciint ath12k_dbring_set_cfg(struct ath12k *ar, 5962306a36Sopenharmony_ci struct ath12k_dbring *ring, 6062306a36Sopenharmony_ci u32 num_resp_per_event, 6162306a36Sopenharmony_ci u32 event_timeout_ms, 6262306a36Sopenharmony_ci int (*handler)(struct ath12k *, 6362306a36Sopenharmony_ci struct ath12k_dbring_data *)); 6462306a36Sopenharmony_ciint ath12k_dbring_wmi_cfg_setup(struct ath12k *ar, 6562306a36Sopenharmony_ci struct ath12k_dbring *ring, 6662306a36Sopenharmony_ci enum wmi_direct_buffer_module id); 6762306a36Sopenharmony_ciint ath12k_dbring_buf_setup(struct ath12k *ar, 6862306a36Sopenharmony_ci struct ath12k_dbring *ring, 6962306a36Sopenharmony_ci struct ath12k_dbring_cap *db_cap); 7062306a36Sopenharmony_ciint ath12k_dbring_srng_setup(struct ath12k *ar, struct ath12k_dbring *ring, 7162306a36Sopenharmony_ci int ring_num, int num_entries); 7262306a36Sopenharmony_ciint ath12k_dbring_buffer_release_event(struct ath12k_base *ab, 7362306a36Sopenharmony_ci struct ath12k_dbring_buf_release_event *ev); 7462306a36Sopenharmony_ciint ath12k_dbring_get_cap(struct ath12k_base *ab, 7562306a36Sopenharmony_ci u8 pdev_idx, 7662306a36Sopenharmony_ci enum wmi_direct_buffer_module id, 7762306a36Sopenharmony_ci struct ath12k_dbring_cap *db_cap); 7862306a36Sopenharmony_civoid ath12k_dbring_srng_cleanup(struct ath12k *ar, struct ath12k_dbring *ring); 7962306a36Sopenharmony_civoid ath12k_dbring_buf_cleanup(struct ath12k *ar, struct ath12k_dbring *ring); 8062306a36Sopenharmony_ci#endif /* ATH12K_DBRING_H */ 81