Siva Reddy | 1edb9ca | 2014-03-25 12:10:54 -0700 | [diff] [blame] | 1 | /* 10G controller driver for Samsung SoCs |
| 2 | * |
| 3 | * Copyright (C) 2013 Samsung Electronics Co., Ltd. |
| 4 | * http://www.samsung.com |
| 5 | * |
| 6 | * Author: Siva Reddy Kallam <siva.kallam@samsung.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | #ifndef __SXGBE_DMA_H__ |
| 13 | #define __SXGBE_DMA_H__ |
| 14 | |
| 15 | /* forward declaration */ |
| 16 | struct sxgbe_extra_stats; |
| 17 | |
| 18 | #define SXGBE_DMA_BLENMAP_LSHIFT 1 |
| 19 | #define SXGBE_DMA_TXPBL_LSHIFT 16 |
| 20 | #define SXGBE_DMA_RXPBL_LSHIFT 16 |
| 21 | #define DEFAULT_DMA_PBL 8 |
| 22 | |
| 23 | struct sxgbe_dma_ops { |
| 24 | /* DMA core initialization */ |
| 25 | int (*init)(void __iomem *ioaddr, int fix_burst, int burst_map); |
| 26 | void (*cha_init)(void __iomem *ioaddr, int cha_num, int fix_burst, |
| 27 | int pbl, dma_addr_t dma_tx, dma_addr_t dma_rx, |
| 28 | int t_rzie, int r_rsize); |
| 29 | void (*enable_dma_transmission)(void __iomem *ioaddr, int dma_cnum); |
| 30 | void (*enable_dma_irq)(void __iomem *ioaddr, int dma_cnum); |
| 31 | void (*disable_dma_irq)(void __iomem *ioaddr, int dma_cnum); |
| 32 | void (*start_tx)(void __iomem *ioaddr, int tchannels); |
| 33 | void (*start_tx_queue)(void __iomem *ioaddr, int dma_cnum); |
| 34 | void (*stop_tx)(void __iomem *ioaddr, int tchannels); |
| 35 | void (*stop_tx_queue)(void __iomem *ioaddr, int dma_cnum); |
| 36 | void (*start_rx)(void __iomem *ioaddr, int rchannels); |
| 37 | void (*stop_rx)(void __iomem *ioaddr, int rchannels); |
| 38 | int (*tx_dma_int_status)(void __iomem *ioaddr, int channel_no, |
| 39 | struct sxgbe_extra_stats *x); |
| 40 | int (*rx_dma_int_status)(void __iomem *ioaddr, int channel_no, |
| 41 | struct sxgbe_extra_stats *x); |
| 42 | /* Program the HW RX Watchdog */ |
| 43 | void (*rx_watchdog)(void __iomem *ioaddr, u32 riwt); |
Vipul Pandya | 1051125 | 2014-03-25 12:10:57 -0700 | [diff] [blame^] | 44 | /* Enable TSO for each DMA channel */ |
| 45 | void (*enable_tso)(void __iomem *ioaddr, u8 chan_num); |
Siva Reddy | 1edb9ca | 2014-03-25 12:10:54 -0700 | [diff] [blame] | 46 | }; |
| 47 | |
| 48 | const struct sxgbe_dma_ops *sxgbe_get_dma_ops(void); |
| 49 | |
| 50 | #endif /* __SXGBE_CORE_H__ */ |