mirror of https://gitee.com/openkylin/linux.git
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/*
|
|
* Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
|
|
* JZ7420/JZ4740 DMA definitions
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
|
|
#ifndef __ASM_MACH_JZ4740_DMA_H__
|
|
#define __ASM_MACH_JZ4740_DMA_H__
|
|
|
|
struct jz4740_dma_chan;
|
|
|
|
enum jz4740_dma_request_type {
|
|
JZ4740_DMA_TYPE_AUTO_REQUEST = 8,
|
|
JZ4740_DMA_TYPE_UART_TRANSMIT = 20,
|
|
JZ4740_DMA_TYPE_UART_RECEIVE = 21,
|
|
JZ4740_DMA_TYPE_SPI_TRANSMIT = 22,
|
|
JZ4740_DMA_TYPE_SPI_RECEIVE = 23,
|
|
JZ4740_DMA_TYPE_AIC_TRANSMIT = 24,
|
|
JZ4740_DMA_TYPE_AIC_RECEIVE = 25,
|
|
JZ4740_DMA_TYPE_MMC_TRANSMIT = 26,
|
|
JZ4740_DMA_TYPE_MMC_RECEIVE = 27,
|
|
JZ4740_DMA_TYPE_TCU = 28,
|
|
JZ4740_DMA_TYPE_SADC = 29,
|
|
JZ4740_DMA_TYPE_SLCD = 30,
|
|
};
|
|
|
|
enum jz4740_dma_width {
|
|
JZ4740_DMA_WIDTH_32BIT = 0,
|
|
JZ4740_DMA_WIDTH_8BIT = 1,
|
|
JZ4740_DMA_WIDTH_16BIT = 2,
|
|
};
|
|
|
|
enum jz4740_dma_transfer_size {
|
|
JZ4740_DMA_TRANSFER_SIZE_4BYTE = 0,
|
|
JZ4740_DMA_TRANSFER_SIZE_1BYTE = 1,
|
|
JZ4740_DMA_TRANSFER_SIZE_2BYTE = 2,
|
|
JZ4740_DMA_TRANSFER_SIZE_16BYTE = 3,
|
|
JZ4740_DMA_TRANSFER_SIZE_32BYTE = 4,
|
|
};
|
|
|
|
enum jz4740_dma_flags {
|
|
JZ4740_DMA_SRC_AUTOINC = 0x2,
|
|
JZ4740_DMA_DST_AUTOINC = 0x1,
|
|
};
|
|
|
|
enum jz4740_dma_mode {
|
|
JZ4740_DMA_MODE_SINGLE = 0,
|
|
JZ4740_DMA_MODE_BLOCK = 1,
|
|
};
|
|
|
|
struct jz4740_dma_config {
|
|
enum jz4740_dma_width src_width;
|
|
enum jz4740_dma_width dst_width;
|
|
enum jz4740_dma_transfer_size transfer_size;
|
|
enum jz4740_dma_request_type request_type;
|
|
enum jz4740_dma_flags flags;
|
|
enum jz4740_dma_mode mode;
|
|
};
|
|
|
|
typedef void (*jz4740_dma_complete_callback_t)(struct jz4740_dma_chan *, int, void *);
|
|
|
|
struct jz4740_dma_chan *jz4740_dma_request(void *dev, const char *name);
|
|
void jz4740_dma_free(struct jz4740_dma_chan *dma);
|
|
|
|
void jz4740_dma_configure(struct jz4740_dma_chan *dma,
|
|
const struct jz4740_dma_config *config);
|
|
|
|
|
|
void jz4740_dma_enable(struct jz4740_dma_chan *dma);
|
|
void jz4740_dma_disable(struct jz4740_dma_chan *dma);
|
|
|
|
void jz4740_dma_set_src_addr(struct jz4740_dma_chan *dma, dma_addr_t src);
|
|
void jz4740_dma_set_dst_addr(struct jz4740_dma_chan *dma, dma_addr_t dst);
|
|
void jz4740_dma_set_transfer_count(struct jz4740_dma_chan *dma, uint32_t count);
|
|
|
|
uint32_t jz4740_dma_get_residue(const struct jz4740_dma_chan *dma);
|
|
|
|
void jz4740_dma_set_complete_cb(struct jz4740_dma_chan *dma,
|
|
jz4740_dma_complete_callback_t cb);
|
|
|
|
#endif /* __ASM_JZ4740_DMA_H__ */
|