// SPDX-License-Identifier: ISC /* * Copyright (c) 2014 Broadcom Corporation */ #ifndef BRCMFMAC_COMMONRING_H #define BRCMFMAC_COMMONRING_H struct brcmf_commonring { u16 r_ptr; u16 w_ptr; u16 f_ptr; u16 depth; u16 item_len; void *buf_addr; int (*cr_ring_bell)(void *ctx); int (*cr_update_rptr)(void *ctx); int (*cr_update_wptr)(void *ctx); int (*cr_write_rptr)(void *ctx); int (*cr_write_wptr)(void *ctx); void *cr_ctx; spinlock_t lock; unsigned long flags; bool inited; bool was_full; atomic_t outstanding_tx; }; void brcmf_commonring_register_cb(struct brcmf_commonring *commonring, int (*cr_ring_bell)(void *ctx), int (*cr_update_rptr)(void *ctx), int (*cr_update_wptr)(void *ctx), int (*cr_write_rptr)(void *ctx), int (*cr_write_wptr)(void *ctx), void *ctx); void brcmf_commonring_config(struct brcmf_commonring *commonring, u16 depth, u16 item_len, void *buf_addr); void brcmf_commonring_lock(struct brcmf_commonring *commonring); void brcmf_commonring_unlock(struct brcmf_commonring *commonring); bool brcmf_commonring_write_available(struct brcmf_commonring *commonring); void *brcmf_commonring_reserve_for_write(struct brcmf_commonring *commonring); void * brcmf_commonring_reserve_for_write_multiple(struct brcmf_commonring *commonring, u16 n_items, u16 *alloced); int brcmf_commonring_write_complete(struct brcmf_commonring *commonring); void brcmf_commonring_write_cancel(struct brcmf_commonring *commonring, u16 n_items); void *brcmf_commonring_get_read_ptr(struct brcmf_commonring *commonring, u16 *n_items); int brcmf_commonring_read_complete(struct brcmf_commonring *commonring, u16 n_items); #define brcmf_commonring_n_items(commonring) (commonring->depth) #define brcmf_commonring_len_item(commonring) (commonring->item_len) #endif /* BRCMFMAC_COMMONRING_H */