Release 4.16 drivers/net/wireless/quantenna/qtnfmac/bus.h
/*
* Copyright (c) 2015 Quantenna Communications
*
* 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 QTNFMAC_BUS_H
#define QTNFMAC_BUS_H
#include <linux/netdevice.h>
#include <linux/workqueue.h>
#define QTNF_MAX_MAC 3
enum qtnf_fw_state {
QTNF_FW_STATE_RESET,
QTNF_FW_STATE_FW_DNLD_DONE,
QTNF_FW_STATE_BOOT_DONE,
QTNF_FW_STATE_ACTIVE,
QTNF_FW_STATE_DEAD,
};
struct qtnf_bus;
struct qtnf_bus_ops {
/* mgmt methods */
int (*preinit)(struct qtnf_bus *);
void (*stop)(struct qtnf_bus *);
/* control path methods */
int (*control_tx)(struct qtnf_bus *, struct sk_buff *);
/* data xfer methods */
int (*data_tx)(struct qtnf_bus *, struct sk_buff *);
void (*data_tx_timeout)(struct qtnf_bus *, struct net_device *);
void (*data_rx_start)(struct qtnf_bus *);
void (*data_rx_stop)(struct qtnf_bus *);
};
struct qtnf_bus {
struct device *dev;
enum qtnf_fw_state fw_state;
u32 chip;
u32 chiprev;
const struct qtnf_bus_ops *bus_ops;
struct qtnf_wmac *mac[QTNF_MAX_MAC];
struct qtnf_qlink_transport trans;
struct qtnf_hw_info hw_info;
char fwname[32];
struct napi_struct mux_napi;
struct net_device mux_dev;
struct completion request_firmware_complete;
struct workqueue_struct *workqueue;
struct work_struct event_work;
struct mutex bus_lock; /* lock during command/event processing */
struct dentry *dbg_dir;
/* bus private data */
char bus_priv[0] __aligned(sizeof(void *));
};
static inline void *get_bus_priv(struct qtnf_bus *bus)
{
if (WARN(!bus, "qtnfmac: invalid bus pointer"))
return NULL;
return &bus->bus_priv;
}
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/* callback wrappers */
static inline int qtnf_bus_preinit(struct qtnf_bus *bus)
{
if (!bus->bus_ops->preinit)
return 0;
return bus->bus_ops->preinit(bus);
}
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static inline void qtnf_bus_stop(struct qtnf_bus *bus)
{
if (!bus->bus_ops->stop)
return;
bus->bus_ops->stop(bus);
}
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static inline int qtnf_bus_data_tx(struct qtnf_bus *bus, struct sk_buff *skb)
{
return bus->bus_ops->data_tx(bus, skb);
}
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static inline void
qtnf_bus_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev)
{
return bus->bus_ops->data_tx_timeout(bus, ndev);
}
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static inline int qtnf_bus_control_tx(struct qtnf_bus *bus, struct sk_buff *skb)
{
return bus->bus_ops->control_tx(bus, skb);
}
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static inline void qtnf_bus_data_rx_start(struct qtnf_bus *bus)
{
return bus->bus_ops->data_rx_start(bus);
}
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static inline void qtnf_bus_data_rx_stop(struct qtnf_bus *bus)
{
return bus->bus_ops->data_rx_stop(bus);
}
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static __always_inline void qtnf_bus_lock(struct qtnf_bus *bus)
{
mutex_lock(&bus->bus_lock);
}
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static __always_inline void qtnf_bus_unlock(struct qtnf_bus *bus)
{
mutex_unlock(&bus->bus_lock);
}
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/* interface functions from common layer */
int qtnf_core_attach(struct qtnf_bus *bus);
void qtnf_core_detach(struct qtnf_bus *bus);
void qtnf_txflowblock(struct device *dev, bool state);
void qtnf_txcomplete(struct device *dev, struct sk_buff *txp, bool success);
#endif /* QTNFMAC_BUS_H */
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