/* SPDX-License-Identifier: BSD-3-Clause-Clear */
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/*
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* Copyright (c) 2019-2020 The Linux Foundation. All rights reserved.
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*/
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#ifndef ATH11K_DBRING_H
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#define ATH11K_DBRING_H
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#include <linux/types.h>
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#include <linux/idr.h>
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#include <linux/spinlock.h>
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#include "dp.h"
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struct ath11k_dbring_element {
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dma_addr_t paddr;
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u8 payload[0];
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};
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struct ath11k_dbring_data {
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void *data;
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u32 data_sz;
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struct wmi_dma_buf_release_meta_data meta;
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};
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struct ath11k_dbring_buf_release_event {
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struct ath11k_wmi_dma_buf_release_fixed_param fixed;
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struct wmi_dma_buf_release_entry *buf_entry;
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struct wmi_dma_buf_release_meta_data *meta_data;
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u32 num_buf_entry;
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u32 num_meta;
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};
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struct ath11k_dbring_cap {
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u32 pdev_id;
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enum wmi_direct_buffer_module id;
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u32 min_elem;
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u32 min_buf_sz;
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u32 min_buf_align;
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};
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struct ath11k_dbring {
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struct dp_srng refill_srng;
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struct idr bufs_idr;
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/* Protects bufs_idr */
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spinlock_t idr_lock;
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dma_addr_t tp_addr;
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dma_addr_t hp_addr;
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int bufs_max;
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u32 pdev_id;
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u32 buf_sz;
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u32 buf_align;
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u32 num_resp_per_event;
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u32 event_timeout_ms;
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int (*handler)(struct ath11k *, struct ath11k_dbring_data *);
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};
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int ath11k_dbring_set_cfg(struct ath11k *ar,
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struct ath11k_dbring *ring,
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u32 num_resp_per_event,
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u32 event_timeout_ms,
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int (*handler)(struct ath11k *,
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struct ath11k_dbring_data *));
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int ath11k_dbring_wmi_cfg_setup(struct ath11k *ar,
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struct ath11k_dbring *ring,
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enum wmi_direct_buffer_module id);
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int ath11k_dbring_buf_setup(struct ath11k *ar,
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struct ath11k_dbring *ring,
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struct ath11k_dbring_cap *db_cap);
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int ath11k_dbring_srng_setup(struct ath11k *ar, struct ath11k_dbring *ring,
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int ring_num, int num_entries);
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int ath11k_dbring_buffer_release_event(struct ath11k_base *ab,
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struct ath11k_dbring_buf_release_event *ev);
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int ath11k_dbring_get_cap(struct ath11k_base *ab,
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u8 pdev_idx,
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enum wmi_direct_buffer_module id,
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struct ath11k_dbring_cap *db_cap);
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void ath11k_dbring_srng_cleanup(struct ath11k *ar, struct ath11k_dbring *ring);
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void ath11k_dbring_buf_cleanup(struct ath11k *ar, struct ath11k_dbring *ring);
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#endif /* ATH11K_DBRING_H */
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