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/*
* Copyright (c) 2005-2011 Atheros Communications Inc.
* Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
*
* 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 _HIF_H_
#define _HIF_H_
#include <linux/kernel.h>
#include "core.h"
struct ath10k_hif_sg_item {
u16 transfer_id;
void *transfer_context; /* NULL = tx completion callback not called */
void *vaddr; /* for debugging mostly */
u32 paddr;
u16 len;
};
struct ath10k_hif_cb {
int (*tx_completion)(struct ath10k *ar,
struct sk_buff *wbuf,
unsigned transfer_id);
int (*rx_completion)(struct ath10k *ar,
struct sk_buff *wbuf,
u8 pipe_id);
};
struct ath10k_hif_ops {
/* send a scatter-gather list to the target */
int (*tx_sg)(struct ath10k *ar, u8 pipe_id,
struct ath10k_hif_sg_item *items, int n_items);
/*
* API to handle HIF-specific BMI message exchanges, this API is
* synchronous and only allowed to be called from a context that
* can block (sleep)
*/
int (*exchange_bmi_msg)(struct ath10k *ar,
void *request, u32 request_len,
void *response, u32 *response_len);
/* Post BMI phase, after FW is loaded. Starts regular operation */
int (*start)(struct ath10k *ar);
/* Clean up what start() did. This does not revert to BMI phase. If
* desired so, call power_down() and power_up() */
void (*stop)(struct ath10k *ar);
int (*map_service_to_pipe)(struct ath10k *ar, u16 service_id,
u8 *ul_pipe, u8 *dl_pipe,
int *ul_is_polled, int *dl_is_polled);
void (*get_default_pipe)(struct ath10k *ar, u8 *ul_pipe, u8 *dl_pipe);
/*
* Check if prior sends have completed.
*
* Check whether the pipe in question has any completed
* sends that have not yet been processed.
* This function is only relevant for HIF pipes that are configured
* to be polled rather than interrupt-driven.
*/
void (*send_complete_check)(struct ath10k *ar, u8 pipe_id, int force);
void (*set_callbacks)(struct ath10k *ar,
struct ath10k_hif_cb *callbacks);
u16 (*get_free_queue_number)(struct ath10k *ar, u8 pipe_id);
/* Power up the device and enter BMI transfer mode for FW download */
int (*power_up)(struct ath10k *ar);
/* Power down the device and free up resources. stop() must be called
* before this if start() was called earlier */
void (*power_down)(struct ath10k *ar);
int (*suspend)(struct ath10k *ar);
int (*resume)(struct ath10k *ar);
};
static inline int ath10k_hif_tx_sg(struct ath10k *ar, u8 pipe_id,
struct ath10k_hif_sg_item *items,
int n_items)
{
return ar->hif.ops->tx_sg(ar, pipe_id, items, n_items);
}
static inline int ath10k_hif_exchange_bmi_msg(struct ath10k *ar,
void *request, u32 request_len,
void *response, u32 *response_len)
{
return ar->hif.ops->exchange_bmi_msg(ar, request, request_len,
response, response_len);
}
static inline int ath10k_hif_start(struct ath10k *ar)
{
return ar->hif.ops->start(ar);
}
static inline void ath10k_hif_stop(struct ath10k *ar)
{
return ar->hif.ops->stop(ar);
}
static inline int ath10k_hif_map_service_to_pipe(struct ath10k *ar,
u16 service_id,
u8 *ul_pipe, u8 *dl_pipe,
int *ul_is_polled,
int *dl_is_polled)
{
return ar->hif.ops->map_service_to_pipe(ar, service_id,
ul_pipe, dl_pipe,
ul_is_polled, dl_is_polled);
}
static inline void ath10k_hif_get_default_pipe(struct ath10k *ar,
u8 *ul_pipe, u8 *dl_pipe)
{
ar->hif.ops->get_default_pipe(ar, ul_pipe, dl_pipe);
}
static inline void ath10k_hif_send_complete_check(struct ath10k *ar,
u8 pipe_id, int force)
{
ar->hif.ops->send_complete_check(ar, pipe_id, force);
}
static inline void ath10k_hif_set_callbacks(struct ath10k *ar,
struct ath10k_hif_cb *callbacks)
{
ar->hif.ops->set_callbacks(ar, callbacks);
}
static inline u16 ath10k_hif_get_free_queue_number(struct ath10k *ar,
u8 pipe_id)
{
return ar->hif.ops->get_free_queue_number(ar, pipe_id);
}
static inline int ath10k_hif_power_up(struct ath10k *ar)
{
return ar->hif.ops->power_up(ar);
}
static inline void ath10k_hif_power_down(struct ath10k *ar)
{
ar->hif.ops->power_down(ar);
}
static inline int ath10k_hif_suspend(struct ath10k *ar)
{
if (!ar->hif.ops->suspend)
return -EOPNOTSUPP;
return ar->hif.ops->suspend(ar);
}
static inline int ath10k_hif_resume(struct ath10k *ar)
{
if (!ar->hif.ops->resume)
return -EOPNOTSUPP;
return ar->hif.ops->resume(ar);
}
#endif /* _HIF_H_ */
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