141 lines
3.6 KiB
C
141 lines
3.6 KiB
C
/*
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* Copyright (c) 2015 Quantenna Communications
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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 ANY
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* 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 ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef QTNFMAC_BUS_H
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#define QTNFMAC_BUS_H
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#include <linux/netdevice.h>
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#include <linux/workqueue.h>
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#define QTNF_MAX_MAC 3
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enum qtnf_fw_state {
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QTNF_FW_STATE_RESET,
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QTNF_FW_STATE_FW_DNLD_DONE,
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QTNF_FW_STATE_BOOT_DONE,
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QTNF_FW_STATE_ACTIVE,
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QTNF_FW_STATE_DETACHED,
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QTNF_FW_STATE_EP_DEAD,
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};
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struct qtnf_bus;
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struct qtnf_bus_ops {
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/* mgmt methods */
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int (*preinit)(struct qtnf_bus *);
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void (*stop)(struct qtnf_bus *);
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/* control path methods */
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int (*control_tx)(struct qtnf_bus *, struct sk_buff *);
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/* data xfer methods */
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int (*data_tx)(struct qtnf_bus *, struct sk_buff *);
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void (*data_tx_timeout)(struct qtnf_bus *, struct net_device *);
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void (*data_rx_start)(struct qtnf_bus *);
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void (*data_rx_stop)(struct qtnf_bus *);
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};
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struct qtnf_bus {
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struct device *dev;
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enum qtnf_fw_state fw_state;
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u32 chip;
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u32 chiprev;
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const struct qtnf_bus_ops *bus_ops;
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struct qtnf_wmac *mac[QTNF_MAX_MAC];
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struct qtnf_qlink_transport trans;
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struct qtnf_hw_info hw_info;
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char fwname[32];
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struct napi_struct mux_napi;
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struct net_device mux_dev;
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struct completion firmware_init_complete;
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struct workqueue_struct *workqueue;
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struct work_struct fw_work;
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struct work_struct event_work;
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struct mutex bus_lock; /* lock during command/event processing */
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struct dentry *dbg_dir;
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/* bus private data */
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char bus_priv[0] __aligned(sizeof(void *));
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};
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static inline void *get_bus_priv(struct qtnf_bus *bus)
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{
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if (WARN(!bus, "qtnfmac: invalid bus pointer"))
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return NULL;
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return &bus->bus_priv;
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}
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/* callback wrappers */
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static inline int qtnf_bus_preinit(struct qtnf_bus *bus)
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{
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if (!bus->bus_ops->preinit)
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return 0;
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return bus->bus_ops->preinit(bus);
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}
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static inline void qtnf_bus_stop(struct qtnf_bus *bus)
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{
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if (!bus->bus_ops->stop)
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return;
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bus->bus_ops->stop(bus);
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}
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static inline int qtnf_bus_data_tx(struct qtnf_bus *bus, struct sk_buff *skb)
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{
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return bus->bus_ops->data_tx(bus, skb);
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}
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static inline void
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qtnf_bus_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev)
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{
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return bus->bus_ops->data_tx_timeout(bus, ndev);
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}
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static inline int qtnf_bus_control_tx(struct qtnf_bus *bus, struct sk_buff *skb)
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{
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return bus->bus_ops->control_tx(bus, skb);
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}
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static inline void qtnf_bus_data_rx_start(struct qtnf_bus *bus)
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{
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return bus->bus_ops->data_rx_start(bus);
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}
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static inline void qtnf_bus_data_rx_stop(struct qtnf_bus *bus)
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{
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return bus->bus_ops->data_rx_stop(bus);
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}
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static __always_inline void qtnf_bus_lock(struct qtnf_bus *bus)
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{
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mutex_lock(&bus->bus_lock);
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}
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static __always_inline void qtnf_bus_unlock(struct qtnf_bus *bus)
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{
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mutex_unlock(&bus->bus_lock);
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}
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/* interface functions from common layer */
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int qtnf_core_attach(struct qtnf_bus *bus);
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void qtnf_core_detach(struct qtnf_bus *bus);
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void qtnf_txflowblock(struct device *dev, bool state);
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void qtnf_txcomplete(struct device *dev, struct sk_buff *txp, bool success);
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#endif /* QTNFMAC_BUS_H */
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