/* SPDX-License-Identifier: GPL-2.0-only
*
* Copyright (c) 2021, MediaTek Inc.
* Copyright (c) 2021-2022, Intel Corporation.
*
* Authors:
* Haijun Liu <[email protected]>
* Eliot Lee <[email protected]>
* Ricardo Martinez <[email protected]>
*
* Contributors:
* Amir Hanania <[email protected]>
* Chiranjeevi Rapolu <[email protected]>
* Moises Veleta <[email protected]>
* Sreehari Kancharla <[email protected]>
*/
#ifndef __T7XX_HIF_DPMA_TX_H__
#define __T7XX_HIF_DPMA_TX_H__
#include <linux/bits.h>
#include <linux/skbuff.h>
#include <linux/types.h>
#include "t7xx_hif_dpmaif.h"
#define DPMAIF_TX_DEFAULT_QUEUE 0
struct dpmaif_drb {
__le32 header;
union {
struct {
__le32 data_addr_l;
__le32 data_addr_h;
} pd;
struct {
__le32 msg_hdr;
__le32 reserved1;
} msg;
};
__le32 reserved2;
};
/* Header fields */
#define DRB_HDR_DATA_LEN GENMASK(31, 16)
#define DRB_HDR_RESERVED GENMASK(15, 3)
#define DRB_HDR_CONT BIT(2)
#define DRB_HDR_DTYP GENMASK(1, 0)
#define DRB_MSG_DW2_RES GENMASK(31, 30)
#define DRB_MSG_L4_CHK BIT(29)
#define DRB_MSG_IP_CHK BIT(28)
#define DRB_MSG_RESERVED BIT(27)
#define DRB_MSG_NETWORK_TYPE GENMASK(26, 24)
#define DRB_MSG_CHANNEL_ID GENMASK(23, 16)
#define DRB_MSG_COUNT_L GENMASK(15, 0)
struct dpmaif_drb_skb {
struct sk_buff *skb;
dma_addr_t bus_addr;
unsigned int data_len;
u16 index:13;
u16 is_msg:1;
u16 is_frag:1;
u16 is_last:1;
};
int t7xx_dpmaif_tx_send_skb(struct dpmaif_ctrl *dpmaif_ctrl, unsigned int txq_number,
struct sk_buff *skb);
void t7xx_dpmaif_tx_thread_rel(struct dpmaif_ctrl *dpmaif_ctrl);
int t7xx_dpmaif_tx_thread_init(struct dpmaif_ctrl *dpmaif_ctrl);
void t7xx_dpmaif_txq_free(struct dpmaif_tx_queue *txq);
void t7xx_dpmaif_irq_tx_done(struct dpmaif_ctrl *dpmaif_ctrl, unsigned int que_mask);
int t7xx_dpmaif_txq_init(struct dpmaif_tx_queue *txq);
void t7xx_dpmaif_tx_stop(struct dpmaif_ctrl *dpmaif_ctrl);
void t7xx_dpmaif_tx_clear(struct dpmaif_ctrl *dpmaif_ctrl);
#endif /* __T7XX_HIF_DPMA_TX_H__ */
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