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kernel add
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/* 10G controller driver for Samsung SoCs
*
* Copyright (C) 2013 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* Author: Siva Reddy Kallam <siva.kallam@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __SXGBE_DMA_H__
#define __SXGBE_DMA_H__
/* forward declaration */
struct sxgbe_extra_stats;
#define SXGBE_DMA_BLENMAP_LSHIFT 1
#define SXGBE_DMA_TXPBL_LSHIFT 16
#define SXGBE_DMA_RXPBL_LSHIFT 16
#define DEFAULT_DMA_PBL 8
struct sxgbe_dma_ops {
/* DMA core initialization */
int (*init)(void __iomem *ioaddr, int fix_burst, int burst_map);
void (*cha_init)(void __iomem *ioaddr, int cha_num, int fix_burst,
int pbl, dma_addr_t dma_tx, dma_addr_t dma_rx,
int t_rzie, int r_rsize);
void (*enable_dma_transmission)(void __iomem *ioaddr, int dma_cnum);
void (*enable_dma_irq)(void __iomem *ioaddr, int dma_cnum);
void (*disable_dma_irq)(void __iomem *ioaddr, int dma_cnum);
void (*start_tx)(void __iomem *ioaddr, int tchannels);
void (*start_tx_queue)(void __iomem *ioaddr, int dma_cnum);
void (*stop_tx)(void __iomem *ioaddr, int tchannels);
void (*stop_tx_queue)(void __iomem *ioaddr, int dma_cnum);
void (*start_rx)(void __iomem *ioaddr, int rchannels);
void (*stop_rx)(void __iomem *ioaddr, int rchannels);
int (*tx_dma_int_status)(void __iomem *ioaddr, int channel_no,
struct sxgbe_extra_stats *x);
int (*rx_dma_int_status)(void __iomem *ioaddr, int channel_no,
struct sxgbe_extra_stats *x);
/* Program the HW RX Watchdog */
void (*rx_watchdog)(void __iomem *ioaddr, u32 riwt);
/* Enable TSO for each DMA channel */
void (*enable_tso)(void __iomem *ioaddr, u8 chan_num);
};
const struct sxgbe_dma_ops *sxgbe_get_dma_ops(void);
#endif /* __SXGBE_CORE_H__ */
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