1*4882a593Smuzhiyun /* SPDX-License-Identifier: BSD-3-Clause-Clear */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (c) 2019-2020 The Linux Foundation. All rights reserved. 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef ATH11K_DBRING_H 7*4882a593Smuzhiyun #define ATH11K_DBRING_H 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <linux/types.h> 10*4882a593Smuzhiyun #include <linux/idr.h> 11*4882a593Smuzhiyun #include <linux/spinlock.h> 12*4882a593Smuzhiyun #include "dp.h" 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct ath11k_dbring_element { 15*4882a593Smuzhiyun dma_addr_t paddr; 16*4882a593Smuzhiyun u8 payload[0]; 17*4882a593Smuzhiyun }; 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun struct ath11k_dbring_data { 20*4882a593Smuzhiyun void *data; 21*4882a593Smuzhiyun u32 data_sz; 22*4882a593Smuzhiyun struct wmi_dma_buf_release_meta_data meta; 23*4882a593Smuzhiyun }; 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun struct ath11k_dbring_buf_release_event { 26*4882a593Smuzhiyun struct ath11k_wmi_dma_buf_release_fixed_param fixed; 27*4882a593Smuzhiyun struct wmi_dma_buf_release_entry *buf_entry; 28*4882a593Smuzhiyun struct wmi_dma_buf_release_meta_data *meta_data; 29*4882a593Smuzhiyun u32 num_buf_entry; 30*4882a593Smuzhiyun u32 num_meta; 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun struct ath11k_dbring_cap { 34*4882a593Smuzhiyun u32 pdev_id; 35*4882a593Smuzhiyun enum wmi_direct_buffer_module id; 36*4882a593Smuzhiyun u32 min_elem; 37*4882a593Smuzhiyun u32 min_buf_sz; 38*4882a593Smuzhiyun u32 min_buf_align; 39*4882a593Smuzhiyun }; 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun struct ath11k_dbring { 42*4882a593Smuzhiyun struct dp_srng refill_srng; 43*4882a593Smuzhiyun struct idr bufs_idr; 44*4882a593Smuzhiyun /* Protects bufs_idr */ 45*4882a593Smuzhiyun spinlock_t idr_lock; 46*4882a593Smuzhiyun dma_addr_t tp_addr; 47*4882a593Smuzhiyun dma_addr_t hp_addr; 48*4882a593Smuzhiyun int bufs_max; 49*4882a593Smuzhiyun u32 pdev_id; 50*4882a593Smuzhiyun u32 buf_sz; 51*4882a593Smuzhiyun u32 buf_align; 52*4882a593Smuzhiyun u32 num_resp_per_event; 53*4882a593Smuzhiyun u32 event_timeout_ms; 54*4882a593Smuzhiyun int (*handler)(struct ath11k *, struct ath11k_dbring_data *); 55*4882a593Smuzhiyun }; 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun int ath11k_dbring_set_cfg(struct ath11k *ar, 58*4882a593Smuzhiyun struct ath11k_dbring *ring, 59*4882a593Smuzhiyun u32 num_resp_per_event, 60*4882a593Smuzhiyun u32 event_timeout_ms, 61*4882a593Smuzhiyun int (*handler)(struct ath11k *, 62*4882a593Smuzhiyun struct ath11k_dbring_data *)); 63*4882a593Smuzhiyun int ath11k_dbring_wmi_cfg_setup(struct ath11k *ar, 64*4882a593Smuzhiyun struct ath11k_dbring *ring, 65*4882a593Smuzhiyun enum wmi_direct_buffer_module id); 66*4882a593Smuzhiyun int ath11k_dbring_buf_setup(struct ath11k *ar, 67*4882a593Smuzhiyun struct ath11k_dbring *ring, 68*4882a593Smuzhiyun struct ath11k_dbring_cap *db_cap); 69*4882a593Smuzhiyun int ath11k_dbring_srng_setup(struct ath11k *ar, struct ath11k_dbring *ring, 70*4882a593Smuzhiyun int ring_num, int num_entries); 71*4882a593Smuzhiyun int ath11k_dbring_buffer_release_event(struct ath11k_base *ab, 72*4882a593Smuzhiyun struct ath11k_dbring_buf_release_event *ev); 73*4882a593Smuzhiyun int ath11k_dbring_get_cap(struct ath11k_base *ab, 74*4882a593Smuzhiyun u8 pdev_idx, 75*4882a593Smuzhiyun enum wmi_direct_buffer_module id, 76*4882a593Smuzhiyun struct ath11k_dbring_cap *db_cap); 77*4882a593Smuzhiyun void ath11k_dbring_srng_cleanup(struct ath11k *ar, struct ath11k_dbring *ring); 78*4882a593Smuzhiyun void ath11k_dbring_buf_cleanup(struct ath11k *ar, struct ath11k_dbring *ring); 79*4882a593Smuzhiyun #endif /* ATH11K_DBRING_H */ 80