220 lines
6.0 KiB
C
220 lines
6.0 KiB
C
/*
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* Copyright (c) 2005-2011 Atheros Communications Inc.
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* Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _HIF_H_
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#define _HIF_H_
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#include <linux/kernel.h>
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#include "core.h"
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#include "debug.h"
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struct ath10k_hif_sg_item {
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u16 transfer_id;
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void *transfer_context; /* NULL = tx completion callback not called */
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void *vaddr; /* for debugging mostly */
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u32 paddr;
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u16 len;
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};
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struct ath10k_hif_ops {
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/* send a scatter-gather list to the target */
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int (*tx_sg)(struct ath10k *ar, u8 pipe_id,
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struct ath10k_hif_sg_item *items, int n_items);
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/* read firmware memory through the diagnose interface */
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int (*diag_read)(struct ath10k *ar, u32 address, void *buf,
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size_t buf_len);
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int (*diag_write)(struct ath10k *ar, u32 address, const void *data,
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int nbytes);
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/*
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* API to handle HIF-specific BMI message exchanges, this API is
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* synchronous and only allowed to be called from a context that
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* can block (sleep)
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*/
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int (*exchange_bmi_msg)(struct ath10k *ar,
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void *request, u32 request_len,
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void *response, u32 *response_len);
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/* Post BMI phase, after FW is loaded. Starts regular operation */
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int (*start)(struct ath10k *ar);
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/* Clean up what start() did. This does not revert to BMI phase. If
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* desired so, call power_down() and power_up() */
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void (*stop)(struct ath10k *ar);
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int (*map_service_to_pipe)(struct ath10k *ar, u16 service_id,
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u8 *ul_pipe, u8 *dl_pipe);
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void (*get_default_pipe)(struct ath10k *ar, u8 *ul_pipe, u8 *dl_pipe);
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/*
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* Check if prior sends have completed.
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*
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* Check whether the pipe in question has any completed
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* sends that have not yet been processed.
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* This function is only relevant for HIF pipes that are configured
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* to be polled rather than interrupt-driven.
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*/
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void (*send_complete_check)(struct ath10k *ar, u8 pipe_id, int force);
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u16 (*get_free_queue_number)(struct ath10k *ar, u8 pipe_id);
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u32 (*read32)(struct ath10k *ar, u32 address);
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void (*write32)(struct ath10k *ar, u32 address, u32 value);
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/* Power up the device and enter BMI transfer mode for FW download */
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int (*power_up)(struct ath10k *ar);
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/* Power down the device and free up resources. stop() must be called
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* before this if start() was called earlier */
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void (*power_down)(struct ath10k *ar);
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int (*suspend)(struct ath10k *ar);
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int (*resume)(struct ath10k *ar);
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/* fetch calibration data from target eeprom */
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int (*fetch_cal_eeprom)(struct ath10k *ar, void **data,
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size_t *data_len);
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};
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static inline int ath10k_hif_tx_sg(struct ath10k *ar, u8 pipe_id,
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struct ath10k_hif_sg_item *items,
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int n_items)
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{
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return ar->hif.ops->tx_sg(ar, pipe_id, items, n_items);
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}
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static inline int ath10k_hif_diag_read(struct ath10k *ar, u32 address, void *buf,
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size_t buf_len)
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{
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return ar->hif.ops->diag_read(ar, address, buf, buf_len);
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}
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static inline int ath10k_hif_diag_write(struct ath10k *ar, u32 address,
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const void *data, int nbytes)
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{
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if (!ar->hif.ops->diag_write)
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return -EOPNOTSUPP;
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return ar->hif.ops->diag_write(ar, address, data, nbytes);
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}
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static inline int ath10k_hif_exchange_bmi_msg(struct ath10k *ar,
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void *request, u32 request_len,
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void *response, u32 *response_len)
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{
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return ar->hif.ops->exchange_bmi_msg(ar, request, request_len,
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response, response_len);
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}
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static inline int ath10k_hif_start(struct ath10k *ar)
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{
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return ar->hif.ops->start(ar);
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}
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static inline void ath10k_hif_stop(struct ath10k *ar)
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{
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return ar->hif.ops->stop(ar);
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}
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static inline int ath10k_hif_map_service_to_pipe(struct ath10k *ar,
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u16 service_id,
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u8 *ul_pipe, u8 *dl_pipe)
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{
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return ar->hif.ops->map_service_to_pipe(ar, service_id,
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ul_pipe, dl_pipe);
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}
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static inline void ath10k_hif_get_default_pipe(struct ath10k *ar,
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u8 *ul_pipe, u8 *dl_pipe)
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{
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ar->hif.ops->get_default_pipe(ar, ul_pipe, dl_pipe);
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}
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static inline void ath10k_hif_send_complete_check(struct ath10k *ar,
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u8 pipe_id, int force)
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{
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ar->hif.ops->send_complete_check(ar, pipe_id, force);
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}
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static inline u16 ath10k_hif_get_free_queue_number(struct ath10k *ar,
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u8 pipe_id)
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{
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return ar->hif.ops->get_free_queue_number(ar, pipe_id);
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}
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static inline int ath10k_hif_power_up(struct ath10k *ar)
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{
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return ar->hif.ops->power_up(ar);
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}
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static inline void ath10k_hif_power_down(struct ath10k *ar)
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{
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ar->hif.ops->power_down(ar);
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}
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static inline int ath10k_hif_suspend(struct ath10k *ar)
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{
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if (!ar->hif.ops->suspend)
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return -EOPNOTSUPP;
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return ar->hif.ops->suspend(ar);
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}
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static inline int ath10k_hif_resume(struct ath10k *ar)
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{
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if (!ar->hif.ops->resume)
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return -EOPNOTSUPP;
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return ar->hif.ops->resume(ar);
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}
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static inline u32 ath10k_hif_read32(struct ath10k *ar, u32 address)
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{
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if (!ar->hif.ops->read32) {
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ath10k_warn(ar, "hif read32 not supported\n");
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return 0xdeaddead;
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}
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return ar->hif.ops->read32(ar, address);
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}
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static inline void ath10k_hif_write32(struct ath10k *ar,
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u32 address, u32 data)
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{
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if (!ar->hif.ops->write32) {
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ath10k_warn(ar, "hif write32 not supported\n");
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return;
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}
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ar->hif.ops->write32(ar, address, data);
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}
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static inline int ath10k_hif_fetch_cal_eeprom(struct ath10k *ar,
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void **data,
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size_t *data_len)
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{
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if (!ar->hif.ops->fetch_cal_eeprom)
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return -EOPNOTSUPP;
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return ar->hif.ops->fetch_cal_eeprom(ar, data, data_len);
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}
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#endif /* _HIF_H_ */
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