Commit ab42ddb9 authored by Eric Long's avatar Eric Long Committed by Vinod Koul
Browse files

dmaengine: sprd: Move DMA request mode and interrupt type into head file 



This patch will move the Spreadtrum DMA request mode and interrupt type
into one head file for user to configure.

Signed-off-by: default avatarEric Long <eric.long@spreadtrum.com>
Signed-off-by: default avatarBaolin Wang <baolin.wang@linaro.org>
Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent d7c33cf8

drivers/dma/sprd-dma.c

+1 −51
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 


#include <linux/clk.h>

#include <linux/dma-mapping.h>

#include <linux/dma/sprd-dma.h>

#include <linux/errno.h>

#include <linux/init.h>

#include <linux/interrupt.h>
@@ -125,57 +126,6 @@ 


#define SPRD_DMA_SOFTWARE_UID		0



/*

 * enum sprd_dma_req_mode: define the DMA request mode

 * @SPRD_DMA_FRAG_REQ: fragment request mode

 * @SPRD_DMA_BLK_REQ: block request mode

 * @SPRD_DMA_TRANS_REQ: transaction request mode

 * @SPRD_DMA_LIST_REQ: link-list request mode

 *

 * We have 4 types request mode: fragment mode, block mode, transaction mode

 * and linklist mode. One transaction can contain several blocks, one block can

 * contain several fragments. Link-list mode means we can save several DMA

 * configuration into one reserved memory, then DMA can fetch each DMA

 * configuration automatically to start transfer.

 */

enum sprd_dma_req_mode {

	SPRD_DMA_FRAG_REQ,

	SPRD_DMA_BLK_REQ,

	SPRD_DMA_TRANS_REQ,

	SPRD_DMA_LIST_REQ,

};



/*

 * enum sprd_dma_int_type: define the DMA interrupt type

 * @SPRD_DMA_NO_INT: do not need generate DMA interrupts.

 * @SPRD_DMA_FRAG_INT: fragment done interrupt when one fragment request

 * is done.

 * @SPRD_DMA_BLK_INT: block done interrupt when one block request is done.

 * @SPRD_DMA_BLK_FRAG_INT: block and fragment interrupt when one fragment

 * or one block request is done.

 * @SPRD_DMA_TRANS_INT: tansaction done interrupt when one transaction

 * request is done.

 * @SPRD_DMA_TRANS_FRAG_INT: transaction and fragment interrupt when one

 * transaction request or fragment request is done.

 * @SPRD_DMA_TRANS_BLK_INT: transaction and block interrupt when one

 * transaction request or block request is done.

 * @SPRD_DMA_LIST_INT: link-list done interrupt when one link-list request

 * is done.

 * @SPRD_DMA_CFGERR_INT: configure error interrupt when configuration is

 * incorrect.

 */

enum sprd_dma_int_type {

	SPRD_DMA_NO_INT,

	SPRD_DMA_FRAG_INT,

	SPRD_DMA_BLK_INT,

	SPRD_DMA_BLK_FRAG_INT,

	SPRD_DMA_TRANS_INT,

	SPRD_DMA_TRANS_FRAG_INT,

	SPRD_DMA_TRANS_BLK_INT,

	SPRD_DMA_LIST_INT,

	SPRD_DMA_CFGERR_INT,

};



/* dma data width values */

enum sprd_dma_datawidth {

	SPRD_DMA_DATAWIDTH_1_BYTE,

include/linux/dma/sprd-dma.h

0 → 100644
+57 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */



#ifndef _SPRD_DMA_H_

#define _SPRD_DMA_H_



/*

 * enum sprd_dma_req_mode: define the DMA request mode

 * @SPRD_DMA_FRAG_REQ: fragment request mode

 * @SPRD_DMA_BLK_REQ: block request mode

 * @SPRD_DMA_TRANS_REQ: transaction request mode

 * @SPRD_DMA_LIST_REQ: link-list request mode

 *

 * We have 4 types request mode: fragment mode, block mode, transaction mode

 * and linklist mode. One transaction can contain several blocks, one block can

 * contain several fragments. Link-list mode means we can save several DMA

 * configuration into one reserved memory, then DMA can fetch each DMA

 * configuration automatically to start transfer.

 */

enum sprd_dma_req_mode {

	SPRD_DMA_FRAG_REQ,

	SPRD_DMA_BLK_REQ,

	SPRD_DMA_TRANS_REQ,

	SPRD_DMA_LIST_REQ,

};



/*

 * enum sprd_dma_int_type: define the DMA interrupt type

 * @SPRD_DMA_NO_INT: do not need generate DMA interrupts.

 * @SPRD_DMA_FRAG_INT: fragment done interrupt when one fragment request

 * is done.

 * @SPRD_DMA_BLK_INT: block done interrupt when one block request is done.

 * @SPRD_DMA_BLK_FRAG_INT: block and fragment interrupt when one fragment

 * or one block request is done.

 * @SPRD_DMA_TRANS_INT: tansaction done interrupt when one transaction

 * request is done.

 * @SPRD_DMA_TRANS_FRAG_INT: transaction and fragment interrupt when one

 * transaction request or fragment request is done.

 * @SPRD_DMA_TRANS_BLK_INT: transaction and block interrupt when one

 * transaction request or block request is done.

 * @SPRD_DMA_LIST_INT: link-list done interrupt when one link-list request

 * is done.

 * @SPRD_DMA_CFGERR_INT: configure error interrupt when configuration is

 * incorrect.

 */

enum sprd_dma_int_type {

	SPRD_DMA_NO_INT,

	SPRD_DMA_FRAG_INT,

	SPRD_DMA_BLK_INT,

	SPRD_DMA_BLK_FRAG_INT,

	SPRD_DMA_TRANS_INT,

	SPRD_DMA_TRANS_FRAG_INT,

	SPRD_DMA_TRANS_BLK_INT,

	SPRD_DMA_LIST_INT,

	SPRD_DMA_CFGERR_INT,

};



#endif