1 | /* SPDX-License-Identifier: BSD-3-Clause-Clear */ |
2 | /* |
3 | * Copyright (c) 2019-2020 The Linux Foundation. All rights reserved. |
4 | * Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved. |
5 | */ |
6 | |
7 | #ifndef ATH11K_DBRING_H |
8 | #define ATH11K_DBRING_H |
9 | |
10 | #include <linux/types.h> |
11 | #include <linux/idr.h> |
12 | #include <linux/spinlock.h> |
13 | #include "dp.h" |
14 | |
15 | struct ath11k_dbring_element { |
16 | dma_addr_t paddr; |
17 | u8 *payload; |
18 | }; |
19 | |
20 | struct ath11k_dbring_data { |
21 | void *data; |
22 | u32 data_sz; |
23 | struct wmi_dma_buf_release_meta_data meta; |
24 | }; |
25 | |
26 | struct ath11k_dbring_buf_release_event { |
27 | struct ath11k_wmi_dma_buf_release_fixed_param fixed; |
28 | struct wmi_dma_buf_release_entry *buf_entry; |
29 | struct wmi_dma_buf_release_meta_data *meta_data; |
30 | u32 num_buf_entry; |
31 | u32 num_meta; |
32 | }; |
33 | |
34 | struct ath11k_dbring_cap { |
35 | u32 pdev_id; |
36 | enum wmi_direct_buffer_module id; |
37 | u32 min_elem; |
38 | u32 min_buf_sz; |
39 | u32 min_buf_align; |
40 | }; |
41 | |
42 | struct ath11k_dbring { |
43 | struct dp_srng refill_srng; |
44 | struct idr bufs_idr; |
45 | /* Protects bufs_idr */ |
46 | spinlock_t idr_lock; |
47 | dma_addr_t tp_addr; |
48 | dma_addr_t hp_addr; |
49 | int bufs_max; |
50 | u32 pdev_id; |
51 | u32 buf_sz; |
52 | u32 buf_align; |
53 | u32 num_resp_per_event; |
54 | u32 event_timeout_ms; |
55 | int (*handler)(struct ath11k *, struct ath11k_dbring_data *); |
56 | }; |
57 | |
58 | int ath11k_dbring_set_cfg(struct ath11k *ar, |
59 | struct ath11k_dbring *ring, |
60 | u32 num_resp_per_event, |
61 | u32 event_timeout_ms, |
62 | int (*handler)(struct ath11k *, |
63 | struct ath11k_dbring_data *)); |
64 | int ath11k_dbring_wmi_cfg_setup(struct ath11k *ar, |
65 | struct ath11k_dbring *ring, |
66 | enum wmi_direct_buffer_module id); |
67 | int ath11k_dbring_buf_setup(struct ath11k *ar, |
68 | struct ath11k_dbring *ring, |
69 | struct ath11k_dbring_cap *db_cap); |
70 | int ath11k_dbring_srng_setup(struct ath11k *ar, struct ath11k_dbring *ring, |
71 | int ring_num, int num_entries); |
72 | int ath11k_dbring_buffer_release_event(struct ath11k_base *ab, |
73 | struct ath11k_dbring_buf_release_event *ev); |
74 | int ath11k_dbring_get_cap(struct ath11k_base *ab, |
75 | u8 pdev_idx, |
76 | enum wmi_direct_buffer_module id, |
77 | struct ath11k_dbring_cap *db_cap); |
78 | void ath11k_dbring_srng_cleanup(struct ath11k *ar, struct ath11k_dbring *ring); |
79 | void ath11k_dbring_buf_cleanup(struct ath11k *ar, struct ath11k_dbring *ring); |
80 | int ath11k_dbring_validate_buffer(struct ath11k *ar, void *data, u32 size); |
81 | |
82 | #endif /* ATH11K_DBRING_H */ |
83 | |