(Patches split per file for review, see cover letter for more
information)

Signed-off-by: Lachlan Hodges <lachlan.hodges@morsemicro.com>
---
 drivers/net/wireless/morsemicro/mm81x/hif.h | 116 ++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 drivers/net/wireless/morsemicro/mm81x/hif.h

diff --git a/drivers/net/wireless/morsemicro/mm81x/hif.h b/drivers/net/wireless/morsemicro/mm81x/hif.h
new file mode 100644
index 000000000000..73c23a39d14b
--- /dev/null
+++ b/drivers/net/wireless/morsemicro/mm81x/hif.h
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2017-2026 Morse Micro
+ */
+
+#ifndef _MM81X_HIF_H_
+#define _MM81X_HIF_H_
+
+#include "core.h"
+
+struct mm81x_skbq;
+
+#define MM81X_HIF_BYPASS_TX_STATUS_IRQ_NUM (15)
+#define MM81X_HIF_BYPASS_CMD_RESP_IRQ_NUM (29)
+#define MM81X_HIF_IRQ_BYPASS_TX_STATUS_AVAILABLE \
+	BIT(MM81X_HIF_BYPASS_TX_STATUS_IRQ_NUM)
+#define MM81X_HIF_IRQ_BYPASS_CMD_RESP_AVAILABLE \
+	BIT(MM81X_HIF_BYPASS_CMD_RESP_IRQ_NUM)
+
+/* Hardware IF interrupt mask. We may use any interrupts in this range */
+#define MM81X_HIF_IRQ_MASK_ALL                                       \
+	(GENMASK(13, 0) | MM81X_HIF_IRQ_BYPASS_TX_STATUS_AVAILABLE | \
+	 MM81X_HIF_IRQ_BYPASS_CMD_RESP_AVAILABLE)
+
+enum mm81x_hif_flags {
+	MM81X_HIF_FLAGS_DIR_TO_HOST = BIT(0),
+	MM81X_HIF_FLAGS_DIR_TO_CHIP = BIT(1),
+	MM81X_HIF_FLAGS_COMMAND = BIT(2),
+	MM81X_HIF_FLAGS_BEACON = BIT(3),
+	MM81X_HIF_FLAGS_DATA = BIT(4)
+};
+
+struct mm81x_hif_ops {
+	int (*init)(struct mm81x *mm);
+	void (*flush_tx_data)(struct mm81x *mm);
+	void (*flush_cmds)(struct mm81x *mm);
+	void (*finish)(struct mm81x *mm);
+	void (*skbq_get_tx_qs)(struct mm81x *mm, struct mm81x_skbq **qs,
+			       int *num_qs);
+	struct mm81x_skbq *(*get_tx_cmd_queue)(struct mm81x *mm);
+	struct mm81x_skbq *(*get_tx_beacon_queue)(struct mm81x *mm);
+	struct mm81x_skbq *(*get_tx_mgmt_queue)(struct mm81x *mm);
+	struct mm81x_skbq *(*get_tx_data_queue)(struct mm81x *mm, int aci);
+	int (*handle_irq)(struct mm81x *mm, u32 status);
+	int (*get_tx_buffered_count)(struct mm81x *mm);
+	int (*get_tx_status_pending_count)(struct mm81x *mm);
+};
+
+static inline void mm81x_hif_clear_events(struct mm81x *mm)
+{
+	mm->hif.event_flags = 0;
+}
+
+static inline int mm81x_hif_init(struct mm81x *mm)
+{
+	return mm->hif.ops->init(mm);
+}
+
+static inline void mm81x_hif_flush_tx_data(struct mm81x *mm)
+{
+	mm->hif.ops->flush_tx_data(mm);
+}
+
+static inline void mm81x_hif_flush_cmds(struct mm81x *mm)
+{
+	mm->hif.ops->flush_cmds(mm);
+}
+
+static inline void mm81x_hif_finish(struct mm81x *mm)
+{
+	mm->hif.ops->finish(mm);
+}
+
+static inline void mm81x_hif_skbq_get_tx_qs(struct mm81x *mm,
+					    struct mm81x_skbq **qs, int *num_qs)
+{
+	mm->hif.ops->skbq_get_tx_qs(mm, qs, num_qs);
+}
+
+static inline struct mm81x_skbq *mm81x_hif_get_tx_cmd_queue(struct mm81x *mm)
+{
+	return mm->hif.ops->get_tx_cmd_queue(mm);
+}
+
+static inline struct mm81x_skbq *mm81x_hif_get_tx_beacon_queue(struct mm81x *mm)
+{
+	return mm->hif.ops->get_tx_beacon_queue(mm);
+}
+
+static inline struct mm81x_skbq *mm81x_hif_get_tx_mgmt_queue(struct mm81x *mm)
+{
+	return mm->hif.ops->get_tx_mgmt_queue(mm);
+}
+
+static inline struct mm81x_skbq *mm81x_hif_get_tx_data_queue(struct mm81x *mm,
+							     int aci)
+{
+	return mm->hif.ops->get_tx_data_queue(mm, aci);
+}
+
+static inline int mm81x_hif_handle_irq(struct mm81x *mm, u32 status)
+{
+	return mm->hif.ops->handle_irq(mm, status);
+}
+
+static inline int mm81x_hif_get_tx_buffered_count(struct mm81x *mm)
+{
+	return mm->hif.ops->get_tx_buffered_count(mm);
+}
+
+static inline int mm81x_hif_get_tx_status_pending_count(struct mm81x *mm)
+{
+	return mm->hif.ops->get_tx_status_pending_count(mm);
+}
+
+#endif /* _MM81X_HIF_H_ */
-- 
2.43.0