1bd647855SKarthikeyan Periyasamy /* SPDX-License-Identifier: BSD-3-Clause-Clear */ 2bd647855SKarthikeyan Periyasamy /* 3bd647855SKarthikeyan Periyasamy * Copyright (c) 2019-2020 The Linux Foundation. All rights reserved. 4*586c7fb1SJeff Johnson * Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved. 5bd647855SKarthikeyan Periyasamy */ 6bd647855SKarthikeyan Periyasamy 7bd647855SKarthikeyan Periyasamy #ifndef ATH11K_DBRING_H 8bd647855SKarthikeyan Periyasamy #define ATH11K_DBRING_H 9bd647855SKarthikeyan Periyasamy 10bd647855SKarthikeyan Periyasamy #include <linux/types.h> 11bd647855SKarthikeyan Periyasamy #include <linux/idr.h> 12bd647855SKarthikeyan Periyasamy #include <linux/spinlock.h> 13bd647855SKarthikeyan Periyasamy #include "dp.h" 14bd647855SKarthikeyan Periyasamy 15bd647855SKarthikeyan Periyasamy struct ath11k_dbring_element { 16bd647855SKarthikeyan Periyasamy dma_addr_t paddr; 17bd77f6b1SRameshkumar Sundaram u8 *payload; 18bd647855SKarthikeyan Periyasamy }; 19bd647855SKarthikeyan Periyasamy 20bd647855SKarthikeyan Periyasamy struct ath11k_dbring_data { 21bd647855SKarthikeyan Periyasamy void *data; 22bd647855SKarthikeyan Periyasamy u32 data_sz; 23bd647855SKarthikeyan Periyasamy struct wmi_dma_buf_release_meta_data meta; 24bd647855SKarthikeyan Periyasamy }; 25bd647855SKarthikeyan Periyasamy 26bd647855SKarthikeyan Periyasamy struct ath11k_dbring_buf_release_event { 27bd647855SKarthikeyan Periyasamy struct ath11k_wmi_dma_buf_release_fixed_param fixed; 28bd647855SKarthikeyan Periyasamy struct wmi_dma_buf_release_entry *buf_entry; 29bd647855SKarthikeyan Periyasamy struct wmi_dma_buf_release_meta_data *meta_data; 30bd647855SKarthikeyan Periyasamy u32 num_buf_entry; 31bd647855SKarthikeyan Periyasamy u32 num_meta; 32bd647855SKarthikeyan Periyasamy }; 33bd647855SKarthikeyan Periyasamy 34bd647855SKarthikeyan Periyasamy struct ath11k_dbring_cap { 35bd647855SKarthikeyan Periyasamy u32 pdev_id; 36bd647855SKarthikeyan Periyasamy enum wmi_direct_buffer_module id; 37bd647855SKarthikeyan Periyasamy u32 min_elem; 38bd647855SKarthikeyan Periyasamy u32 min_buf_sz; 39bd647855SKarthikeyan Periyasamy u32 min_buf_align; 40bd647855SKarthikeyan Periyasamy }; 41bd647855SKarthikeyan Periyasamy 42bd647855SKarthikeyan Periyasamy struct ath11k_dbring { 43bd647855SKarthikeyan Periyasamy struct dp_srng refill_srng; 44bd647855SKarthikeyan Periyasamy struct idr bufs_idr; 45bd647855SKarthikeyan Periyasamy /* Protects bufs_idr */ 46bd647855SKarthikeyan Periyasamy spinlock_t idr_lock; 47bd647855SKarthikeyan Periyasamy dma_addr_t tp_addr; 48bd647855SKarthikeyan Periyasamy dma_addr_t hp_addr; 49bd647855SKarthikeyan Periyasamy int bufs_max; 50bd647855SKarthikeyan Periyasamy u32 pdev_id; 51bd647855SKarthikeyan Periyasamy u32 buf_sz; 52bd647855SKarthikeyan Periyasamy u32 buf_align; 53bd647855SKarthikeyan Periyasamy u32 num_resp_per_event; 54bd647855SKarthikeyan Periyasamy u32 event_timeout_ms; 55bd647855SKarthikeyan Periyasamy int (*handler)(struct ath11k *, struct ath11k_dbring_data *); 56bd647855SKarthikeyan Periyasamy }; 57bd647855SKarthikeyan Periyasamy 58bd647855SKarthikeyan Periyasamy int ath11k_dbring_set_cfg(struct ath11k *ar, 59bd647855SKarthikeyan Periyasamy struct ath11k_dbring *ring, 60bd647855SKarthikeyan Periyasamy u32 num_resp_per_event, 61bd647855SKarthikeyan Periyasamy u32 event_timeout_ms, 62bd647855SKarthikeyan Periyasamy int (*handler)(struct ath11k *, 63bd647855SKarthikeyan Periyasamy struct ath11k_dbring_data *)); 64bd647855SKarthikeyan Periyasamy int ath11k_dbring_wmi_cfg_setup(struct ath11k *ar, 65bd647855SKarthikeyan Periyasamy struct ath11k_dbring *ring, 66bd647855SKarthikeyan Periyasamy enum wmi_direct_buffer_module id); 67bd647855SKarthikeyan Periyasamy int ath11k_dbring_buf_setup(struct ath11k *ar, 68bd647855SKarthikeyan Periyasamy struct ath11k_dbring *ring, 69bd647855SKarthikeyan Periyasamy struct ath11k_dbring_cap *db_cap); 70bd647855SKarthikeyan Periyasamy int ath11k_dbring_srng_setup(struct ath11k *ar, struct ath11k_dbring *ring, 71bd647855SKarthikeyan Periyasamy int ring_num, int num_entries); 72bd647855SKarthikeyan Periyasamy int ath11k_dbring_buffer_release_event(struct ath11k_base *ab, 73bd647855SKarthikeyan Periyasamy struct ath11k_dbring_buf_release_event *ev); 74bd647855SKarthikeyan Periyasamy int ath11k_dbring_get_cap(struct ath11k_base *ab, 75bd647855SKarthikeyan Periyasamy u8 pdev_idx, 76bd647855SKarthikeyan Periyasamy enum wmi_direct_buffer_module id, 77bd647855SKarthikeyan Periyasamy struct ath11k_dbring_cap *db_cap); 78bd647855SKarthikeyan Periyasamy void ath11k_dbring_srng_cleanup(struct ath11k *ar, struct ath11k_dbring *ring); 79bd647855SKarthikeyan Periyasamy void ath11k_dbring_buf_cleanup(struct ath11k *ar, struct ath11k_dbring *ring); 80d3d358efSVenkateswara Naralasetty int ath11k_dbring_validate_buffer(struct ath11k *ar, void *data, u32 size); 81d3d358efSVenkateswara Naralasetty 82bd647855SKarthikeyan Periyasamy #endif /* ATH11K_DBRING_H */ 83