1 /* SPDX-License-Identifier: BSD-3-Clause-Clear */
3 * Copyright (c) 2019-2020 The Linux Foundation. All rights reserved.
6 #ifndef ATH11K_DBRING_H
7 #define ATH11K_DBRING_H
9 #include <linux/types.h>
10 #include <linux/idr.h>
11 #include <linux/spinlock.h>
14 struct ath11k_dbring_element {
19 struct ath11k_dbring_data {
22 struct wmi_dma_buf_release_meta_data meta;
25 struct ath11k_dbring_buf_release_event {
26 struct ath11k_wmi_dma_buf_release_fixed_param fixed;
27 struct wmi_dma_buf_release_entry *buf_entry;
28 struct wmi_dma_buf_release_meta_data *meta_data;
33 struct ath11k_dbring_cap {
35 enum wmi_direct_buffer_module id;
41 struct ath11k_dbring {
42 struct dp_srng refill_srng;
44 /* Protects bufs_idr */
52 u32 num_resp_per_event;
54 int (*handler)(struct ath11k *, struct ath11k_dbring_data *);
57 int ath11k_dbring_set_cfg(struct ath11k *ar,
58 struct ath11k_dbring *ring,
59 u32 num_resp_per_event,
61 int (*handler)(struct ath11k *,
62 struct ath11k_dbring_data *));
63 int ath11k_dbring_wmi_cfg_setup(struct ath11k *ar,
64 struct ath11k_dbring *ring,
65 enum wmi_direct_buffer_module id);
66 int ath11k_dbring_buf_setup(struct ath11k *ar,
67 struct ath11k_dbring *ring,
68 struct ath11k_dbring_cap *db_cap);
69 int ath11k_dbring_srng_setup(struct ath11k *ar, struct ath11k_dbring *ring,
70 int ring_num, int num_entries);
71 int ath11k_dbring_buffer_release_event(struct ath11k_base *ab,
72 struct ath11k_dbring_buf_release_event *ev);
73 int ath11k_dbring_get_cap(struct ath11k_base *ab,
75 enum wmi_direct_buffer_module id,
76 struct ath11k_dbring_cap *db_cap);
77 void ath11k_dbring_srng_cleanup(struct ath11k *ar, struct ath11k_dbring *ring);
78 void ath11k_dbring_buf_cleanup(struct ath11k *ar, struct ath11k_dbring *ring);
79 int ath11k_dbring_validate_buffer(struct ath11k *ar, void *data, u32 size);
81 #endif /* ATH11K_DBRING_H */