1 files changed, 158 insertions, 0 deletions

diff --git a/drivers/net/wireless/quantenna/qtnfmac/bus.h b/drivers/net/wireless/quantenna/qtnfmac/bus.h
new file mode 100644
index 000000000..3334c45aa
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/bus.h
@@ -0,0 +1,158 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015 Quantenna Communications. All rights reserved. */
+
+#ifndef QTNFMAC_BUS_H
+#define QTNFMAC_BUS_H
+
+#include <linux/netdevice.h>
+#include <linux/workqueue.h>
+
+#include "trans.h"
+#include "core.h"
+
+#define QTNF_MAX_MAC		3
+
+#define HBM_FRAME_META_MAGIC_PATTERN_S	0xAB
+#define HBM_FRAME_META_MAGIC_PATTERN_E	0xBA
+
+struct qtnf_frame_meta_info {
+	u8 magic_s;
+	u8 ifidx;
+	u8 macid;
+	u8 magic_e;
+} __packed;
+
+enum qtnf_fw_state {
+	QTNF_FW_STATE_DETACHED,
+	QTNF_FW_STATE_BOOT_DONE,
+	QTNF_FW_STATE_ACTIVE,
+	QTNF_FW_STATE_RUNNING,
+	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 *bus, struct sk_buff *skb,
+		       unsigned int macid, unsigned int vifid);
+	void (*data_tx_timeout)(struct qtnf_bus *, struct net_device *);
+	void (*data_tx_use_meta_set)(struct qtnf_bus *bus, bool use_meta);
+	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;
+	struct qtnf_bus_ops *bus_ops;
+	struct qtnf_wmac *mac[QTNF_MAX_MAC];
+	struct qtnf_qlink_transport trans;
+	struct qtnf_hw_info hw_info;
+	struct napi_struct mux_napi;
+	struct net_device mux_dev;
+	struct workqueue_struct *workqueue;
+	struct workqueue_struct *hprio_workqueue;
+	struct work_struct fw_work;
+	struct work_struct event_work;
+	struct mutex bus_lock; /* lock during command/event processing */
+	struct dentry *dbg_dir;
+	struct notifier_block netdev_nb;
+	u8 hw_id[ETH_ALEN];
+	/* bus private data */
+	char bus_priv[] __aligned(sizeof(void *));
+};
+
+static inline bool qtnf_fw_is_up(struct qtnf_bus *bus)
+{
+	enum qtnf_fw_state state = bus->fw_state;
+
+	return ((state == QTNF_FW_STATE_ACTIVE) ||
+		(state == QTNF_FW_STATE_RUNNING));
+}
+
+static inline bool qtnf_fw_is_attached(struct qtnf_bus *bus)
+{
+	enum qtnf_fw_state state = bus->fw_state;
+
+	return ((state == QTNF_FW_STATE_ACTIVE) ||
+		(state == QTNF_FW_STATE_RUNNING) ||
+		(state == QTNF_FW_STATE_DEAD));
+}
+
+static inline void *get_bus_priv(struct qtnf_bus *bus)
+{
+	if (WARN(!bus, "qtnfmac: invalid bus pointer"))
+		return NULL;
+
+	return &bus->bus_priv;
+}
+
+/* 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);
+}
+
+static inline void qtnf_bus_stop(struct qtnf_bus *bus)
+{
+	if (!bus->bus_ops->stop)
+		return;
+	bus->bus_ops->stop(bus);
+}
+
+static inline int qtnf_bus_data_tx(struct qtnf_bus *bus, struct sk_buff *skb,
+				   unsigned int macid, unsigned int vifid)
+{
+	return bus->bus_ops->data_tx(bus, skb, macid, vifid);
+}
+
+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);
+}
+
+static inline int qtnf_bus_control_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+	return bus->bus_ops->control_tx(bus, skb);
+}
+
+static inline void qtnf_bus_data_rx_start(struct qtnf_bus *bus)
+{
+	return bus->bus_ops->data_rx_start(bus);
+}
+
+static inline void qtnf_bus_data_rx_stop(struct qtnf_bus *bus)
+{
+	return bus->bus_ops->data_rx_stop(bus);
+}
+
+static __always_inline void qtnf_bus_lock(struct qtnf_bus *bus)
+{
+	mutex_lock(&bus->bus_lock);
+}
+
+static __always_inline void qtnf_bus_unlock(struct qtnf_bus *bus)
+{
+	mutex_unlock(&bus->bus_lock);
+}
+
+/* interface functions from common layer */
+
+int qtnf_core_attach(struct qtnf_bus *bus);
+void qtnf_core_detach(struct qtnf_bus *bus);
+
+#endif /* QTNFMAC_BUS_H */