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/* SPDX-License-Identifier: BSD-3-Clause-Clear */
/*
* Copyright (c) 2019-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#ifndef ATH12K_DBRING_H
#define ATH12K_DBRING_H
#include <linux/types.h>
#include <linux/idr.h>
#include <linux/spinlock.h>
#include "dp.h"
struct ath12k_dbring_element {
dma_addr_t paddr;
u8 payload[];
};
struct ath12k_dbring_data {
void *data;
u32 data_sz;
struct ath12k_wmi_dma_buf_release_meta_data_params meta;
};
struct ath12k_dbring_buf_release_event {
struct ath12k_wmi_dma_buf_release_fixed_params fixed;
const struct ath12k_wmi_dma_buf_release_entry_params *buf_entry;
const struct ath12k_wmi_dma_buf_release_meta_data_params *meta_data;
u32 num_buf_entry;
u32 num_meta;
};
struct ath12k_dbring_cap {
u32 pdev_id;
enum wmi_direct_buffer_module id;
u32 min_elem;
u32 min_buf_sz;
u32 min_buf_align;
};
struct ath12k_dbring {
struct dp_srng refill_srng;
struct idr bufs_idr;
/* Protects bufs_idr */
spinlock_t idr_lock;
dma_addr_t tp_addr;
dma_addr_t hp_addr;
int bufs_max;
u32 pdev_id;
u32 buf_sz;
u32 buf_align;
u32 num_resp_per_event;
u32 event_timeout_ms;
int (*handler)(struct ath12k *ar, struct ath12k_dbring_data *data);
};
int ath12k_dbring_set_cfg(struct ath12k *ar,
struct ath12k_dbring *ring,
u32 num_resp_per_event,
u32 event_timeout_ms,
int (*handler)(struct ath12k *,
struct ath12k_dbring_data *));
int ath12k_dbring_wmi_cfg_setup(struct ath12k *ar,
struct ath12k_dbring *ring,
enum wmi_direct_buffer_module id);
int ath12k_dbring_buf_setup(struct ath12k *ar,
struct ath12k_dbring *ring,
struct ath12k_dbring_cap *db_cap);
int ath12k_dbring_srng_setup(struct ath12k *ar, struct ath12k_dbring *ring,
int ring_num, int num_entries);
int ath12k_dbring_buffer_release_event(struct ath12k_base *ab,
struct ath12k_dbring_buf_release_event *ev);
int ath12k_dbring_get_cap(struct ath12k_base *ab,
u8 pdev_idx,
enum wmi_direct_buffer_module id,
struct ath12k_dbring_cap *db_cap);
void ath12k_dbring_srng_cleanup(struct ath12k *ar, struct ath12k_dbring *ring);
void ath12k_dbring_buf_cleanup(struct ath12k *ar, struct ath12k_dbring *ring);
#endif /* ATH12K_DBRING_H */
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