dw-dma.h File Reference

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Data Structures
struct	dw_chan_data
struct	dw_drv_plat_data
struct	dw_lli

Macros
#define	DW_MAX_CHAN   8
#define	DW_FIFO_SIZE   0x80
#define	DW_CHAN_SIZE   0x58
#define	DW_CHAN_OFFSET(chan)
#define	DW_SAR(chan)
#define	DW_DAR(chan)
#define	DW_LLP(chan)
#define	DW_CTRL_LOW(chan)
#define	DW_CTRL_HIGH(chan)
#define	DW_CFG_LOW(chan)
#define	DW_CFG_HIGH(chan)
#define	DW_DSR(chan)
#define	DW_RAW_TFR   0x2C0
#define	DW_RAW_BLOCK   0x2C8
#define	DW_RAW_SRC_TRAN   0x2D0
#define	DW_RAW_DST_TRAN   0x2D8
#define	DW_RAW_ERR   0x2E0
#define	DW_STATUS_TFR   0x2E8
#define	DW_STATUS_BLOCK   0x2F0
#define	DW_STATUS_SRC_TRAN   0x2F8
#define	DW_STATUS_DST_TRAN   0x300
#define	DW_STATUS_ERR   0x308
#define	DW_MASK_TFR   0x310
#define	DW_MASK_BLOCK   0x318
#define	DW_MASK_SRC_TRAN   0x320
#define	DW_MASK_DST_TRAN   0x328
#define	DW_MASK_ERR   0x330
#define	DW_CLEAR_TFR   0x338
#define	DW_CLEAR_BLOCK   0x340
#define	DW_CLEAR_SRC_TRAN   0x348
#define	DW_CLEAR_DST_TRAN   0x350
#define	DW_CLEAR_ERR   0x358
#define	DW_INTR_STATUS   0x360
#define	DW_DMA_CFG   0x398
#define	DW_DMA_CHAN_EN   0x3A0
#define	DW_FIFO_PART0_LO   0x400
#define	DW_FIFO_PART0_HI   0x404
#define	DW_FIFO_PART1_LO   0x408
#define	DW_FIFO_PART1_HI   0x40C
#define	DW_CHAN_WRITE_EN_ALL   MASK(2 * DW_MAX_CHAN - 1, DW_MAX_CHAN)
#define	DW_CHAN_WRITE_EN(chan)
#define	DW_CHAN_ALL   MASK(DW_MAX_CHAN - 1, 0)
#define	DW_CHAN(chan)
#define	DW_CHAN_MASK_ALL   DW_CHAN_WRITE_EN_ALL
#define	DW_CHAN_MASK(chan)
#define	DW_CHAN_UNMASK_ALL   (DW_CHAN_WRITE_EN_ALL | DW_CHAN_ALL)
#define	DW_CHAN_UNMASK(chan)
#define	DW_CFGL_DRAIN   BIT(10)
#define	DW_CFGL_FIFO_EMPTY   BIT(9)
#define	DW_CFGL_SUSPEND   BIT(8)
#define	DW_CTLL_RELOAD_DST   BIT(31)
#define	DW_CTLL_RELOAD_SRC   BIT(30)
#define	DW_CTLL_LLP_S_EN   BIT(28)
#define	DW_CTLL_LLP_D_EN   BIT(27)
#define	DW_CTLL_SMS(x)
#define	DW_CTLL_DMS(x)
#define	DW_CTLL_FC_P2P   SET_BITS(21, 20, 3)
#define	DW_CTLL_FC_P2M   SET_BITS(21, 20, 2)
#define	DW_CTLL_FC_M2P   SET_BITS(21, 20, 1)
#define	DW_CTLL_FC_M2M   SET_BITS(21, 20, 0)
#define	DW_CTLL_D_SCAT_EN   BIT(18)
#define	DW_CTLL_S_GATH_EN   BIT(17)
#define	DW_CTLL_SRC_MSIZE(x)
#define	DW_CTLL_DST_MSIZE(x)
#define	DW_CTLL_SRC_FIX   SET_BITS(10, 9, 2)
#define	DW_CTLL_SRC_DEC   SET_BITS(10, 9, 1)
#define	DW_CTLL_SRC_INC   SET_BITS(10, 9, 0)
#define	DW_CTLL_DST_FIX   SET_BITS(8, 7, 2)
#define	DW_CTLL_DST_DEC   SET_BITS(8, 7, 1)
#define	DW_CTLL_DST_INC   SET_BITS(8, 7, 0)
#define	DW_CTLL_SRC_WIDTH(x)
#define	DW_CTLL_DST_WIDTH(x)
#define	DW_CTLL_INT_EN   BIT(0)
#define	DW_CTLL_SRC_WIDTH_MASK   MASK(6, 4)
#define	DW_CTLL_SRC_WIDTH_SHIFT   4
#define	DW_CTLL_DST_WIDTH_MASK   MASK(3, 1)
#define	DW_CTLL_DST_WIDTH_SHIFT   1
#define	DW_DSR_DSC(x)
#define	DW_DSR_DSI(x)
#define	DW_FIFO_UPD   BIT(26)
#define	DW_FIFO_CHx(x)
#define	DW_FIFO_CHy(x)
#define	DW_DMA_CFG_TRIES   10000
#define	DW_DMA_TIMEOUT   1333
#define	DW_DMA_CFG_NO_IRQ_MIN_ELEMS   3
#define	DW_DMA_LLI_ADDRESS(lli, dir)
#define	DW_DMA_BUFFER_ALIGNMENT   0x4
#define	DW_DMA_COPY_ALIGNMENT   0x4

Variables
struct dw_lli	__packed
const struct dma_ops	dw_dma_ops

Macro Definition Documentation

DW_CFG_HIGH

#define DW_CFG_HIGH

(

chan

)

Value:

(0x44 + DW_CHAN_OFFSET(chan))

DW_CFG_LOW

#define DW_CFG_LOW

(

chan

)

Value:

(0x40 + DW_CHAN_OFFSET(chan))

DW_CFGL_DRAIN

#define DW_CFGL_DRAIN   BIT(10)

DW_CFGL_FIFO_EMPTY

#define DW_CFGL_FIFO_EMPTY   BIT(9)

DW_CFGL_SUSPEND

#define DW_CFGL_SUSPEND   BIT(8)

DW_CHAN

#define DW_CHAN

(

chan

)

Value:

BIT(chan)

DW_CHAN_ALL

#define DW_CHAN_ALL   MASK(DW_MAX_CHAN - 1, 0)

DW_CHAN_MASK

#define DW_CHAN_MASK

(

chan

)

Value:

DW_CHAN_WRITE_EN(chan)

DW_CHAN_MASK_ALL

#define DW_CHAN_MASK_ALL   DW_CHAN_WRITE_EN_ALL

DW_CHAN_OFFSET

#define DW_CHAN_OFFSET

(

chan

)

Value:

(DW_CHAN_SIZE * (chan))

DW_CHAN_SIZE

#define DW_CHAN_SIZE   0x58

DW_CHAN_UNMASK

#define DW_CHAN_UNMASK

(

chan

)

Value:

(DW_CHAN_WRITE_EN(chan) | DW_CHAN(chan))

DW_CHAN_UNMASK_ALL

#define DW_CHAN_UNMASK_ALL   (DW_CHAN_WRITE_EN_ALL | DW_CHAN_ALL)

DW_CHAN_WRITE_EN

#define DW_CHAN_WRITE_EN

(

chan

)

Value:

BIT((chan) + DW_MAX_CHAN)

DW_CHAN_WRITE_EN_ALL

#define DW_CHAN_WRITE_EN_ALL   MASK(2 * DW_MAX_CHAN - 1, DW_MAX_CHAN)

DW_CLEAR_BLOCK

#define DW_CLEAR_BLOCK   0x340

DW_CLEAR_DST_TRAN

#define DW_CLEAR_DST_TRAN   0x350

DW_CLEAR_ERR

#define DW_CLEAR_ERR   0x358

DW_CLEAR_SRC_TRAN

#define DW_CLEAR_SRC_TRAN   0x348

DW_CLEAR_TFR

#define DW_CLEAR_TFR   0x338

DW_CTLL_D_SCAT_EN

#define DW_CTLL_D_SCAT_EN   BIT(18)

DW_CTLL_DMS

#define DW_CTLL_DMS

(

x

)

Value:

SET_BIT(23, x)

DW_CTLL_DST_DEC

#define DW_CTLL_DST_DEC   SET_BITS(8, 7, 1)

DW_CTLL_DST_FIX

#define DW_CTLL_DST_FIX   SET_BITS(8, 7, 2)

DW_CTLL_DST_INC

#define DW_CTLL_DST_INC   SET_BITS(8, 7, 0)

DW_CTLL_DST_MSIZE

#define DW_CTLL_DST_MSIZE

(

x

)

Value:

SET_BITS(13, 11, x)

DW_CTLL_DST_WIDTH

#define DW_CTLL_DST_WIDTH

(

x

)

Value:

SET_BITS(3, 1, x)

DW_CTLL_DST_WIDTH_MASK

#define DW_CTLL_DST_WIDTH_MASK   MASK(3, 1)

DW_CTLL_DST_WIDTH_SHIFT

#define DW_CTLL_DST_WIDTH_SHIFT   1

DW_CTLL_FC_M2M

#define DW_CTLL_FC_M2M   SET_BITS(21, 20, 0)

DW_CTLL_FC_M2P

#define DW_CTLL_FC_M2P   SET_BITS(21, 20, 1)

DW_CTLL_FC_P2M

#define DW_CTLL_FC_P2M   SET_BITS(21, 20, 2)

DW_CTLL_FC_P2P

#define DW_CTLL_FC_P2P   SET_BITS(21, 20, 3)

DW_CTLL_INT_EN

#define DW_CTLL_INT_EN   BIT(0)

DW_CTLL_LLP_D_EN

#define DW_CTLL_LLP_D_EN   BIT(27)

DW_CTLL_LLP_S_EN

#define DW_CTLL_LLP_S_EN   BIT(28)

DW_CTLL_RELOAD_DST

#define DW_CTLL_RELOAD_DST   BIT(31)

DW_CTLL_RELOAD_SRC

#define DW_CTLL_RELOAD_SRC   BIT(30)

DW_CTLL_S_GATH_EN

#define DW_CTLL_S_GATH_EN   BIT(17)

DW_CTLL_SMS

#define DW_CTLL_SMS

(

x

)

Value:

SET_BIT(25, x)

DW_CTLL_SRC_DEC

#define DW_CTLL_SRC_DEC   SET_BITS(10, 9, 1)

DW_CTLL_SRC_FIX

#define DW_CTLL_SRC_FIX   SET_BITS(10, 9, 2)

DW_CTLL_SRC_INC

#define DW_CTLL_SRC_INC   SET_BITS(10, 9, 0)

DW_CTLL_SRC_MSIZE

#define DW_CTLL_SRC_MSIZE

(

x

)

Value:

SET_BITS(16, 14, x)

DW_CTLL_SRC_WIDTH

#define DW_CTLL_SRC_WIDTH

(

x

)

Value:

SET_BITS(6, 4, x)

DW_CTLL_SRC_WIDTH_MASK

#define DW_CTLL_SRC_WIDTH_MASK   MASK(6, 4)

DW_CTLL_SRC_WIDTH_SHIFT

#define DW_CTLL_SRC_WIDTH_SHIFT   4

DW_CTRL_HIGH

#define DW_CTRL_HIGH

(

chan

)

Value:

(0x1C + DW_CHAN_OFFSET(chan))

DW_CTRL_LOW

#define DW_CTRL_LOW

(

chan

)

Value:

(0x18 + DW_CHAN_OFFSET(chan))

DW_DAR

#define DW_DAR

(

chan

)

Value:

(0x08 + DW_CHAN_OFFSET(chan))

DW_DMA_BUFFER_ALIGNMENT

#define DW_DMA_BUFFER_ALIGNMENT   0x4

DW_DMA_CFG

#define DW_DMA_CFG   0x398

DW_DMA_CFG_NO_IRQ_MIN_ELEMS

#define DW_DMA_CFG_NO_IRQ_MIN_ELEMS   3

DW_DMA_CFG_TRIES

#define DW_DMA_CFG_TRIES   10000

DW_DMA_CHAN_EN

#define DW_DMA_CHAN_EN   0x3A0

DW_DMA_COPY_ALIGNMENT

#define DW_DMA_COPY_ALIGNMENT   0x4

DW_DMA_LLI_ADDRESS

#define DW_DMA_LLI_ADDRESS	(		lli,
			dir )

Value:

    (((dir) == DMA_DIR_MEM_TO_DEV) ? ((lli)->sar) : ((lli)->dar))

DW_DMA_TIMEOUT

#define DW_DMA_TIMEOUT   1333

DW_DSR

#define DW_DSR

(

chan

)

Value:

(0x50 + DW_CHAN_OFFSET(chan))

DW_DSR_DSC

#define DW_DSR_DSC

(

x

)

Value:

SET_BITS(31, 20, x)

DW_DSR_DSI

#define DW_DSR_DSI

(

x

)

Value:

SET_BITS(19, 0, x)

DW_FIFO_CHx

#define DW_FIFO_CHx

(

x

)

Value:

SET_BITS(25, 13, x)

DW_FIFO_CHy

#define DW_FIFO_CHy

(

x

)

Value:

SET_BITS(12, 0, x)

DW_FIFO_PART0_HI

#define DW_FIFO_PART0_HI   0x404

DW_FIFO_PART0_LO

#define DW_FIFO_PART0_LO   0x400

DW_FIFO_PART1_HI

#define DW_FIFO_PART1_HI   0x40C

DW_FIFO_PART1_LO

#define DW_FIFO_PART1_LO   0x408

DW_FIFO_SIZE

#define DW_FIFO_SIZE   0x80

DW_FIFO_UPD

#define DW_FIFO_UPD   BIT(26)

DW_INTR_STATUS

#define DW_INTR_STATUS   0x360

DW_LLP

#define DW_LLP

(

chan

)

Value:

(0x10 + DW_CHAN_OFFSET(chan))

DW_MASK_BLOCK

#define DW_MASK_BLOCK   0x318

DW_MASK_DST_TRAN

#define DW_MASK_DST_TRAN   0x328

DW_MASK_ERR

#define DW_MASK_ERR   0x330

DW_MASK_SRC_TRAN

#define DW_MASK_SRC_TRAN   0x320

DW_MASK_TFR

#define DW_MASK_TFR   0x310

DW_MAX_CHAN

#define DW_MAX_CHAN   8

DW_RAW_BLOCK

#define DW_RAW_BLOCK   0x2C8

DW_RAW_DST_TRAN

#define DW_RAW_DST_TRAN   0x2D8

DW_RAW_ERR

#define DW_RAW_ERR   0x2E0

DW_RAW_SRC_TRAN

#define DW_RAW_SRC_TRAN   0x2D0

DW_RAW_TFR

#define DW_RAW_TFR   0x2C0

DW_SAR

#define DW_SAR

(

chan

)

Value:

(0x00 + DW_CHAN_OFFSET(chan))

DW_STATUS_BLOCK

#define DW_STATUS_BLOCK   0x2F0

DW_STATUS_DST_TRAN

#define DW_STATUS_DST_TRAN   0x300

DW_STATUS_ERR

#define DW_STATUS_ERR   0x308

DW_STATUS_SRC_TRAN

#define DW_STATUS_SRC_TRAN   0x2F8

DW_STATUS_TFR

#define DW_STATUS_TFR   0x2E8

Variable Documentation

__packed

struct dw_lli __packed

dw_dma_ops

const struct dma_ops dw_dma_ops

extern