1/* SPDX-License-Identifier: GPL-2.0-only */
2/* 10G controller driver for Samsung SoCs
3 *
4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
5 *		http://www.samsung.com
6 *
7 * Author: Siva Reddy Kallam <siva.kallam@samsung.com>
8 */
9#ifndef __SXGBE_DMA_H__
10#define __SXGBE_DMA_H__
11
12/* forward declaration */
13struct sxgbe_extra_stats;
14
15#define SXGBE_DMA_BLENMAP_LSHIFT	1
16#define SXGBE_DMA_TXPBL_LSHIFT		16
17#define SXGBE_DMA_RXPBL_LSHIFT		16
18#define DEFAULT_DMA_PBL			8
19
20struct sxgbe_dma_ops {
21	/* DMA core initialization */
22	int (*init)(void __iomem *ioaddr, int fix_burst, int burst_map);
23	void (*cha_init)(void __iomem *ioaddr, int cha_num, int fix_burst,
24			 int pbl, dma_addr_t dma_tx, dma_addr_t dma_rx,
25			 int t_rzie, int r_rsize);
26	void (*enable_dma_transmission)(void __iomem *ioaddr, int dma_cnum);
27	void (*enable_dma_irq)(void __iomem *ioaddr, int dma_cnum);
28	void (*disable_dma_irq)(void __iomem *ioaddr, int dma_cnum);
29	void (*start_tx)(void __iomem *ioaddr, int tchannels);
30	void (*start_tx_queue)(void __iomem *ioaddr, int dma_cnum);
31	void (*stop_tx)(void __iomem *ioaddr, int tchannels);
32	void (*stop_tx_queue)(void __iomem *ioaddr, int dma_cnum);
33	void (*start_rx)(void __iomem *ioaddr, int rchannels);
34	void (*stop_rx)(void __iomem *ioaddr, int rchannels);
35	int (*tx_dma_int_status)(void __iomem *ioaddr, int channel_no,
36				 struct sxgbe_extra_stats *x);
37	int (*rx_dma_int_status)(void __iomem *ioaddr, int channel_no,
38				 struct sxgbe_extra_stats *x);
39	/* Program the HW RX Watchdog */
40	void (*rx_watchdog)(void __iomem *ioaddr, u32 riwt);
41	/* Enable TSO for each DMA channel */
42	void (*enable_tso)(void __iomem *ioaddr, u8 chan_num);
43};
44
45const struct sxgbe_dma_ops *sxgbe_get_dma_ops(void);
46
47#endif /* __SXGBE_CORE_H__ */
48