1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * mtu3_qmu.h - Queue Management Unit driver header 4 * 5 * Copyright (C) 2016 MediaTek Inc. 6 * 7 * Author: Chunfeng Yun <chunfeng.yun@mediatek.com> 8 * 9 * This software is licensed under the terms of the GNU General Public 10 * License version 2, as published by the Free Software Foundation, and 11 * may be copied, distributed, and modified under those terms. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 */ 19 20 #ifndef __MTK_QMU_H__ 21 #define __MTK_QMU_H__ 22 23 #define MAX_GPD_NUM 64 24 #define QMU_GPD_SIZE (sizeof(struct qmu_gpd)) 25 #define QMU_GPD_RING_SIZE (MAX_GPD_NUM * QMU_GPD_SIZE) 26 27 #define GPD_BUF_SIZE 65532 28 29 void mtu3_qmu_stop(struct mtu3_ep *mep); 30 int mtu3_qmu_start(struct mtu3_ep *mep); 31 void mtu3_qmu_resume(struct mtu3_ep *mep); 32 void mtu3_qmu_flush(struct mtu3_ep *mep); 33 34 void mtu3_insert_gpd(struct mtu3_ep *mep, struct mtu3_request *mreq); 35 int mtu3_prepare_transfer(struct mtu3_ep *mep); 36 37 int mtu3_gpd_ring_alloc(struct mtu3_ep *mep); 38 void mtu3_gpd_ring_free(struct mtu3_ep *mep); 39 40 irqreturn_t mtu3_qmu_isr(struct mtu3 *mtu); 41 int mtu3_qmu_init(struct mtu3 *mtu); 42 void mtu3_qmu_exit(struct mtu3 *mtu); 43 44 #endif 45