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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_ARCH_CRIS_DMA_H
#define _ASM_ARCH_CRIS_DMA_H
/* Defines for using and allocating dma channels. */
#define MAX_DMA_CHANNELS 10
#define NETWORK_ETH0_TX_DMA_NBR 0 /* Ethernet 0 out. */
#define NETWORK_ETH0 RX_DMA_NBR 1 /* Ethernet 0 in. */
#define IO_PROC_DMA0_TX_DMA_NBR 2 /* IO processor DMA0 out. */
#define IO_PROC_DMA0_RX_DMA_NBR 3 /* IO processor DMA0 in. */
#define ATA_TX_DMA_NBR 2 /* ATA interface out. */
#define ATA_RX_DMA_NBR 3 /* ATA interface in. */
#define ASYNC_SER2_TX_DMA_NBR 2 /* Asynchronous serial port 2 out. */
#define ASYNC_SER2_RX_DMA_NBR 3 /* Asynchronous serial port 2 in. */
#define IO_PROC_DMA1_TX_DMA_NBR 4 /* IO processor DMA1 out. */
#define IO_PROC_DMA1_RX_DMA_NBR 5 /* IO processor DMA1 in. */
#define ASYNC_SER1_TX_DMA_NBR 4 /* Asynchronous serial port 1 out. */
#define ASYNC_SER1_RX_DMA_NBR 5 /* Asynchronous serial port 1 in. */
#define SYNC_SER0_TX_DMA_NBR 4 /* Synchronous serial port 0 out. */
#define SYNC_SER0_RX_DMA_NBR 5 /* Synchronous serial port 0 in. */
#define EXTDMA0_TX_DMA_NBR 6 /* External DMA 0 out. */
#define EXTDMA1_RX_DMA_NBR 7 /* External DMA 1 in. */
#define ASYNC_SER0_TX_DMA_NBR 6 /* Asynchronous serial port 0 out. */
#define ASYNC_SER0_RX_DMA_NBR 7 /* Asynchronous serial port 0 in. */
#define SYNC_SER1_TX_DMA_NBR 6 /* Synchronous serial port 1 out. */
#define SYNC_SER1_RX_DMA_NBR 7 /* Synchronous serial port 1 in. */
#define NETWORK_ETH1_TX_DMA_NBR 6 /* Ethernet 1 out. */
#define NETWORK_ETH1_RX_DMA_NBR 7 /* Ethernet 1 in. */
#define EXTDMA2_TX_DMA_NBR 8 /* External DMA 2 out. */
#define EXTDMA3_RX_DMA_NBR 9 /* External DMA 3 in. */
#define STRCOP_TX_DMA_NBR 8 /* Stream co-processor out. */
#define STRCOP_RX_DMA_NBR 9 /* Stream co-processor in. */
#define ASYNC_SER3_TX_DMA_NBR 8 /* Asynchronous serial port 3 out. */
#define ASYNC_SER3_RX_DMA_NBR 9 /* Asynchronous serial port 3 in. */
enum dma_owner {
dma_eth0,
dma_eth1,
dma_iop0,
dma_iop1,
dma_ser0,
dma_ser1,
dma_ser2,
dma_ser3,
dma_sser0,
dma_sser1,
dma_ata,
dma_strp,
dma_ext0,
dma_ext1,
dma_ext2,
dma_ext3
};
int crisv32_request_dma(unsigned int dmanr, const char *device_id,
unsigned options, unsigned bandwidth,
enum dma_owner owner);
void crisv32_free_dma(unsigned int dmanr);
/* Masks used by crisv32_request_dma options: */
#define DMA_VERBOSE_ON_ERROR 1
#define DMA_PANIC_ON_ERROR (2|DMA_VERBOSE_ON_ERROR)
#define DMA_INT_MEM 4
#endif /* _ASM_ARCH_CRIS_DMA_H */
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