| /* Copyright (c) 2014 Broadcom Corporation |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| #ifndef BRCMFMAC_COMMONRING_H |
| #define BRCMFMAC_COMMONRING_H |
| |
| #include <zircon/types.h> |
| |
| struct brcmf_commonring { |
| uint16_t r_ptr; |
| uint16_t w_ptr; |
| uint16_t f_ptr; |
| uint16_t depth; |
| uint16_t item_len; |
| |
| void* buf_addr; |
| |
| zx_status_t (*cr_ring_bell)(void* ctx); |
| zx_status_t (*cr_update_rptr)(void* ctx); |
| zx_status_t (*cr_update_wptr)(void* ctx); |
| zx_status_t (*cr_write_rptr)(void* ctx); |
| zx_status_t (*cr_write_wptr)(void* ctx); |
| |
| void* cr_ctx; |
| |
| //spinlock_t lock; |
| bool inited; |
| bool was_full; |
| |
| atomic_int outstanding_tx; |
| }; |
| |
| void brcmf_commonring_register_cb(struct brcmf_commonring* commonring, |
| zx_status_t (*cr_ring_bell)(void* ctx), |
| zx_status_t (*cr_update_rptr)(void* ctx), |
| zx_status_t (*cr_update_wptr)(void* ctx), |
| zx_status_t (*cr_write_rptr)(void* ctx), |
| zx_status_t (*cr_write_wptr)(void* ctx), void* ctx); |
| void brcmf_commonring_config(struct brcmf_commonring* commonring, uint16_t depth, uint16_t 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, |
| uint16_t n_items, uint16_t* alloced); |
| zx_status_t brcmf_commonring_write_complete(struct brcmf_commonring* commonring); |
| void brcmf_commonring_write_cancel(struct brcmf_commonring* commonring, uint16_t n_items); |
| void* brcmf_commonring_get_read_ptr(struct brcmf_commonring* commonring, uint16_t* n_items); |
| zx_status_t brcmf_commonring_read_complete(struct brcmf_commonring* commonring, uint16_t n_items); |
| |
| #define brcmf_commonring_n_items(commonring) (commonring->depth) |
| #define brcmf_commonring_len_item(commonring) (commonring->item_len) |
| |
| #endif /* BRCMFMAC_COMMONRING_H */ |