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65 lines
1.6 KiB
65 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0+ */ |
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/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ |
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#ifndef _QTN_FMAC_SHM_IPC_H_ |
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#define _QTN_FMAC_SHM_IPC_H_ |
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#include <linux/workqueue.h> |
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#include <linux/completion.h> |
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#include <linux/mutex.h> |
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#include <linux/spinlock.h> |
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#include "shm_ipc_defs.h" |
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#define QTN_SHM_IPC_ACK_TIMEOUT (2 * HZ) |
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struct qtnf_shm_ipc_int { |
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void (*fn)(void *arg); |
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void *arg; |
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}; |
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struct qtnf_shm_ipc_rx_callback { |
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void (*fn)(void *arg, const u8 __iomem *buf, size_t len); |
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void *arg; |
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}; |
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enum qtnf_shm_ipc_direction { |
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QTNF_SHM_IPC_OUTBOUND = BIT(0), |
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QTNF_SHM_IPC_INBOUND = BIT(1), |
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}; |
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struct qtnf_shm_ipc { |
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struct qtnf_shm_ipc_region __iomem *shm_region; |
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enum qtnf_shm_ipc_direction direction; |
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size_t tx_packet_count; |
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size_t rx_packet_count; |
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size_t tx_timeout_count; |
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u8 waiting_for_ack; |
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struct qtnf_shm_ipc_int interrupt; |
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struct qtnf_shm_ipc_rx_callback rx_callback; |
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void (*irq_handler)(struct qtnf_shm_ipc *ipc); |
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struct workqueue_struct *workqueue; |
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struct work_struct irq_work; |
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struct completion tx_completion; |
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}; |
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int qtnf_shm_ipc_init(struct qtnf_shm_ipc *ipc, |
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enum qtnf_shm_ipc_direction direction, |
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struct qtnf_shm_ipc_region __iomem *shm_region, |
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struct workqueue_struct *workqueue, |
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const struct qtnf_shm_ipc_int *interrupt, |
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const struct qtnf_shm_ipc_rx_callback *rx_callback); |
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void qtnf_shm_ipc_free(struct qtnf_shm_ipc *ipc); |
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int qtnf_shm_ipc_send(struct qtnf_shm_ipc *ipc, const u8 *buf, size_t size); |
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static inline void qtnf_shm_ipc_irq_handler(struct qtnf_shm_ipc *ipc) |
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{ |
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ipc->irq_handler(ipc); |
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} |
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#endif /* _QTN_FMAC_SHM_IPC_H_ */
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