cregit-Linux how code gets into the kernel

Release 4.7 drivers/media/platform/ti-vpe/vpdma_priv.h

/*
 * Copyright (c) 2013 Texas Instruments Inc.
 *
 * David Griego, <dagriego@biglakesoftware.com>
 * Dale Farnsworth, <dale@farnsworth.org>
 * Archit Taneja, <archit@ti.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 */

#ifndef _TI_VPDMA_PRIV_H_

#define _TI_VPDMA_PRIV_H_

/*
 * VPDMA Register offsets
 */

/* Top level */

#define VPDMA_PID		0x00

#define VPDMA_LIST_ADDR		0x04

#define VPDMA_LIST_ATTR		0x08

#define VPDMA_LIST_STAT_SYNC	0x0c

#define VPDMA_BG_RGB		0x18

#define VPDMA_BG_YUV		0x1c

#define VPDMA_SETUP		0x30

#define VPDMA_MAX_SIZE1		0x34

#define VPDMA_MAX_SIZE2		0x38

#define VPDMA_MAX_SIZE3		0x3c

/* Interrupts */

#define VPDMA_INT_CHAN_STAT(grp)	(0x40 + grp * 8)

#define VPDMA_INT_CHAN_MASK(grp)	(VPDMA_INT_CHAN_STAT(grp) + 4)

#define VPDMA_INT_CLIENT0_STAT		0x78

#define VPDMA_INT_CLIENT0_MASK		0x7c

#define VPDMA_INT_CLIENT1_STAT		0x80

#define VPDMA_INT_CLIENT1_MASK		0x84

#define VPDMA_INT_LIST0_STAT		0x88

#define VPDMA_INT_LIST0_MASK		0x8c


#define VPDMA_PERFMON(i)		(0x200 + i * 4)

/* VPE specific client registers */

#define VPDMA_DEI_CHROMA1_CSTAT		0x0300

#define VPDMA_DEI_LUMA1_CSTAT		0x0304

#define VPDMA_DEI_LUMA2_CSTAT		0x0308

#define VPDMA_DEI_CHROMA2_CSTAT		0x030c

#define VPDMA_DEI_LUMA3_CSTAT		0x0310

#define VPDMA_DEI_CHROMA3_CSTAT		0x0314

#define VPDMA_DEI_MV_IN_CSTAT		0x0330

#define VPDMA_DEI_MV_OUT_CSTAT		0x033c

#define VPDMA_VIP_UP_Y_CSTAT		0x0390

#define VPDMA_VIP_UP_UV_CSTAT		0x0394

#define VPDMA_VPI_CTL_CSTAT		0x03d0

/* Reg field info for VPDMA_CLIENT_CSTAT registers */

#define VPDMA_CSTAT_LINE_MODE_MASK	0x03

#define VPDMA_CSTAT_LINE_MODE_SHIFT	8

#define VPDMA_CSTAT_FRAME_START_MASK	0xf

#define VPDMA_CSTAT_FRAME_START_SHIFT	10


#define VPDMA_LIST_NUM_MASK		0x07

#define VPDMA_LIST_NUM_SHFT		24

#define VPDMA_LIST_STOP_SHFT		20

#define VPDMA_LIST_RDY_MASK		0x01

#define VPDMA_LIST_RDY_SHFT		19

#define VPDMA_LIST_TYPE_MASK		0x03

#define VPDMA_LIST_TYPE_SHFT		16

#define VPDMA_LIST_SIZE_MASK		0xffff

/* VPDMA data type values for data formats */

#define DATA_TYPE_Y444				0x0

#define DATA_TYPE_Y422				0x1

#define DATA_TYPE_Y420				0x2

#define DATA_TYPE_C444				0x4

#define DATA_TYPE_C422				0x5

#define DATA_TYPE_C420				0x6

#define DATA_TYPE_YC422				0x7

#define DATA_TYPE_YC444				0x8

#define DATA_TYPE_CY422				0x27


#define DATA_TYPE_RGB16_565			0x0

#define DATA_TYPE_ARGB_1555			0x1

#define DATA_TYPE_ARGB_4444			0x2

#define DATA_TYPE_RGBA_5551			0x3

#define DATA_TYPE_RGBA_4444			0x4

#define DATA_TYPE_ARGB24_6666			0x5

#define DATA_TYPE_RGB24_888			0x6

#define DATA_TYPE_ARGB32_8888			0x7

#define DATA_TYPE_RGBA24_6666			0x8

#define DATA_TYPE_RGBA32_8888			0x9

#define DATA_TYPE_BGR16_565			0x10

#define DATA_TYPE_ABGR_1555			0x11

#define DATA_TYPE_ABGR_4444			0x12

#define DATA_TYPE_BGRA_5551			0x13

#define DATA_TYPE_BGRA_4444			0x14

#define DATA_TYPE_ABGR24_6666			0x15

#define DATA_TYPE_BGR24_888			0x16

#define DATA_TYPE_ABGR32_8888			0x17

#define DATA_TYPE_BGRA24_6666			0x18

#define DATA_TYPE_BGRA32_8888			0x19


#define DATA_TYPE_MV				0x3

/* VPDMA channel numbers(only VPE channels for now) */

#define	VPE_CHAN_NUM_LUMA1_IN		0

#define	VPE_CHAN_NUM_CHROMA1_IN		1

#define	VPE_CHAN_NUM_LUMA2_IN		2

#define	VPE_CHAN_NUM_CHROMA2_IN		3

#define	VPE_CHAN_NUM_LUMA3_IN		4

#define	VPE_CHAN_NUM_CHROMA3_IN		5

#define	VPE_CHAN_NUM_MV_IN		12

#define	VPE_CHAN_NUM_MV_OUT		15

#define	VPE_CHAN_NUM_LUMA_OUT		102

#define	VPE_CHAN_NUM_CHROMA_OUT		103

#define	VPE_CHAN_NUM_RGB_OUT		106

/*
 * a VPDMA address data block payload for a configuration descriptor needs to
 * have each sub block length as a multiple of 16 bytes. Therefore, the overall
 * size of the payload also needs to be a multiple of 16 bytes. The sub block
 * lengths should be ensured to be aligned by the VPDMA user.
 */

#define VPDMA_ADB_SIZE_ALIGN		0x0f

/*
 * data transfer descriptor
 */

struct vpdma_dtd {
	
u32			type_ctl_stride;
	union {
		
u32		xfer_length_height;
		
u32		w1;
	};
	
dma_addr_t		start_addr;
	
u32			pkt_ctl;
	union {
		
u32		frame_width_height;	/* inbound */
		
dma_addr_t	desc_write_addr;	/* outbound */
	};
	union {
		
u32		start_h_v;		/* inbound */
		
u32		max_width_height;	/* outbound */
	};
	
u32			client_attr0;
	
u32			client_attr1;
};

/* Data Transfer Descriptor specifics */

#define DTD_NO_NOTIFY		0

#define DTD_NOTIFY		1


#define DTD_PKT_TYPE		0xa

#define DTD_DIR_IN		0

#define DTD_DIR_OUT		1

/* type_ctl_stride */

#define DTD_DATA_TYPE_MASK	0x3f

#define DTD_DATA_TYPE_SHFT	26

#define DTD_NOTIFY_MASK		0x01

#define DTD_NOTIFY_SHFT		25

#define DTD_FIELD_MASK		0x01

#define DTD_FIELD_SHFT		24

#define DTD_1D_MASK		0x01

#define DTD_1D_SHFT		23

#define DTD_EVEN_LINE_SKIP_MASK	0x01

#define DTD_EVEN_LINE_SKIP_SHFT	20

#define DTD_ODD_LINE_SKIP_MASK	0x01

#define DTD_ODD_LINE_SKIP_SHFT	16

#define DTD_LINE_STRIDE_MASK	0xffff

#define DTD_LINE_STRIDE_SHFT	0

/* xfer_length_height */

#define DTD_LINE_LENGTH_MASK	0xffff

#define DTD_LINE_LENGTH_SHFT	16

#define DTD_XFER_HEIGHT_MASK	0xffff

#define DTD_XFER_HEIGHT_SHFT	0

/* pkt_ctl */

#define DTD_PKT_TYPE_MASK	0x1f

#define DTD_PKT_TYPE_SHFT	27

#define DTD_MODE_MASK		0x01

#define DTD_MODE_SHFT		26

#define DTD_DIR_MASK		0x01

#define DTD_DIR_SHFT		25

#define DTD_CHAN_MASK		0x01ff

#define DTD_CHAN_SHFT		16

#define DTD_PRI_MASK		0x0f

#define DTD_PRI_SHFT		9

#define DTD_NEXT_CHAN_MASK	0x01ff

#define DTD_NEXT_CHAN_SHFT	0

/* frame_width_height */

#define DTD_FRAME_WIDTH_MASK	0xffff

#define DTD_FRAME_WIDTH_SHFT	16

#define DTD_FRAME_HEIGHT_MASK	0xffff

#define DTD_FRAME_HEIGHT_SHFT	0

/* start_h_v */

#define DTD_H_START_MASK	0xffff

#define DTD_H_START_SHFT	16

#define DTD_V_START_MASK	0xffff

#define DTD_V_START_SHFT	0


#define DTD_DESC_START_SHIFT	5

#define DTD_WRITE_DESC_MASK	0x01

#define DTD_WRITE_DESC_SHIFT	2

#define DTD_DROP_DATA_MASK	0x01

#define DTD_DROP_DATA_SHIFT	1

#define DTD_USE_DESC_MASK	0x01

#define DTD_USE_DESC_SHIFT	0

/* max_width_height */

#define DTD_MAX_WIDTH_MASK	0x07

#define DTD_MAX_WIDTH_SHFT	4

#define DTD_MAX_HEIGHT_MASK	0x07

#define DTD_MAX_HEIGHT_SHFT	0

/* max width configurations */
 /* unlimited width */

#define	MAX_OUT_WIDTH_UNLIMITED		0
/* as specified in max_size1 reg */

#define MAX_OUT_WIDTH_REG1		1
/* as specified in max_size2 reg */

#define MAX_OUT_WIDTH_REG2		2
/* as specified in max_size3 reg */

#define	MAX_OUT_WIDTH_REG3		3
/* maximum of 352 pixels as width */

#define MAX_OUT_WIDTH_352		4
/* maximum of 768 pixels as width */

#define	MAX_OUT_WIDTH_768		5
/* maximum of 1280 pixels width */

#define	MAX_OUT_WIDTH_1280		6
/* maximum of 1920 pixels as width */

#define	MAX_OUT_WIDTH_1920		7

/* max height configurations */
 /* unlimited height */

#define	MAX_OUT_HEIGHT_UNLIMITED	0
/* as specified in max_size1 reg */

#define MAX_OUT_HEIGHT_REG1		1
/* as specified in max_size2 reg */

#define MAX_OUT_HEIGHT_REG2		2
/* as specified in max_size3 reg */

#define	MAX_OUT_HEIGHT_REG3		3
/* maximum of 288 lines as height */

#define MAX_OUT_HEIGHT_288		4
/* maximum of 576 lines as height */

#define	MAX_OUT_HEIGHT_576		5
/* maximum of 720 lines as height */

#define	MAX_OUT_HEIGHT_720		6
/* maximum of 1080 lines as height */

#define	MAX_OUT_HEIGHT_1080		7


static inline u32 dtd_type_ctl_stride(int type, bool notify, int field, bool one_d, bool even_line_skip, bool odd_line_skip, int line_stride) { return (type << DTD_DATA_TYPE_SHFT) | (notify << DTD_NOTIFY_SHFT) | (field << DTD_FIELD_SHFT) | (one_d << DTD_1D_SHFT) | (even_line_skip << DTD_EVEN_LINE_SKIP_SHFT) | (odd_line_skip << DTD_ODD_LINE_SKIP_SHFT) | line_stride; }

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static inline u32 dtd_xfer_length_height(int line_length, int xfer_height) { return (line_length << DTD_LINE_LENGTH_SHFT) | xfer_height; }

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static inline u32 dtd_pkt_ctl(bool mode, bool dir, int chan, int pri, int next_chan) { return (DTD_PKT_TYPE << DTD_PKT_TYPE_SHFT) | (mode << DTD_MODE_SHFT) | (dir << DTD_DIR_SHFT) | (chan << DTD_CHAN_SHFT) | (pri << DTD_PRI_SHFT) | next_chan; }

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static inline u32 dtd_frame_width_height(int width, int height) { return (width << DTD_FRAME_WIDTH_SHFT) | height; }

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static inline u32 dtd_desc_write_addr(unsigned int addr, bool write_desc, bool drop_data, bool use_desc) { return (addr << DTD_DESC_START_SHIFT) | (write_desc << DTD_WRITE_DESC_SHIFT) | (drop_data << DTD_DROP_DATA_SHIFT) | use_desc; }

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static inline u32 dtd_start_h_v(int h_start, int v_start) { return (h_start << DTD_H_START_SHFT) | v_start; }

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static inline u32 dtd_max_width_height(int max_width, int max_height) { return (max_width << DTD_MAX_WIDTH_SHFT) | max_height; }

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static inline int dtd_get_data_type(struct vpdma_dtd *dtd) { return dtd->type_ctl_stride >> DTD_DATA_TYPE_SHFT; }

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static inline bool dtd_get_notify(struct vpdma_dtd *dtd) { return (dtd->type_ctl_stride >> DTD_NOTIFY_SHFT) & DTD_NOTIFY_MASK; }

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static inline int dtd_get_field(struct vpdma_dtd *dtd) { return (dtd->type_ctl_stride >> DTD_FIELD_SHFT) & DTD_FIELD_MASK; }

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static inline bool dtd_get_1d(struct vpdma_dtd *dtd) { return (dtd->type_ctl_stride >> DTD_1D_SHFT) & DTD_1D_MASK; }

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static inline bool dtd_get_even_line_skip(struct vpdma_dtd *dtd) { return (dtd->type_ctl_stride >> DTD_EVEN_LINE_SKIP_SHFT) & DTD_EVEN_LINE_SKIP_MASK; }

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static inline bool dtd_get_odd_line_skip(struct vpdma_dtd *dtd) { return (dtd->type_ctl_stride >> DTD_ODD_LINE_SKIP_SHFT) & DTD_ODD_LINE_SKIP_MASK; }

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static inline int dtd_get_line_stride(struct vpdma_dtd *dtd) { return dtd->type_ctl_stride & DTD_LINE_STRIDE_MASK; }

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static inline int dtd_get_line_length(struct vpdma_dtd *dtd) { return dtd->xfer_length_height >> DTD_LINE_LENGTH_SHFT; }

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static inline int dtd_get_xfer_height(struct vpdma_dtd *dtd) { return dtd->xfer_length_height & DTD_XFER_HEIGHT_MASK; }

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static inline int dtd_get_pkt_type(struct vpdma_dtd *dtd) { return dtd->pkt_ctl >> DTD_PKT_TYPE_SHFT; }

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static inline bool dtd_get_mode(struct vpdma_dtd *dtd) { return (dtd->pkt_ctl >> DTD_MODE_SHFT) & DTD_MODE_MASK; }

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static inline bool dtd_get_dir(struct vpdma_dtd *dtd) { return (dtd->pkt_ctl >> DTD_DIR_SHFT) & DTD_DIR_MASK; }

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static inline int dtd_get_chan(struct vpdma_dtd *dtd) { return (dtd->pkt_ctl >> DTD_CHAN_SHFT) & DTD_CHAN_MASK; }

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static inline int dtd_get_priority(struct vpdma_dtd *dtd) { return (dtd->pkt_ctl >> DTD_PRI_SHFT) & DTD_PRI_MASK; }

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static inline int dtd_get_next_chan(struct vpdma_dtd *dtd) { return (dtd->pkt_ctl >> DTD_NEXT_CHAN_SHFT) & DTD_NEXT_CHAN_MASK; }

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static inline int dtd_get_frame_width(struct vpdma_dtd *dtd) { return dtd->frame_width_height >> DTD_FRAME_WIDTH_SHFT; }

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static inline int dtd_get_frame_height(struct vpdma_dtd *dtd) { return dtd->frame_width_height & DTD_FRAME_HEIGHT_MASK; }

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static inline int dtd_get_desc_write_addr(struct vpdma_dtd *dtd) { return dtd->desc_write_addr >> DTD_DESC_START_SHIFT; }

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static inline bool dtd_get_write_desc(struct vpdma_dtd *dtd) { return (dtd->desc_write_addr >> DTD_WRITE_DESC_SHIFT) & DTD_WRITE_DESC_MASK; }

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static inline bool dtd_get_drop_data(struct vpdma_dtd *dtd) { return (dtd->desc_write_addr >> DTD_DROP_DATA_SHIFT) & DTD_DROP_DATA_MASK; }

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static inline bool dtd_get_use_desc(struct vpdma_dtd *dtd) { return dtd->desc_write_addr & DTD_USE_DESC_MASK; }

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static inline int dtd_get_h_start(struct vpdma_dtd *dtd) { return dtd->start_h_v >> DTD_H_START_SHFT; }

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static inline int dtd_get_v_start(struct vpdma_dtd *dtd) { return dtd->start_h_v & DTD_V_START_MASK; }

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static inline int dtd_get_max_width(struct vpdma_dtd *dtd) { return (dtd->max_width_height >> DTD_MAX_WIDTH_SHFT) & DTD_MAX_WIDTH_MASK; }

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static inline int dtd_get_max_height(struct vpdma_dtd *dtd) { return (dtd->max_width_height >> DTD_MAX_HEIGHT_SHFT) & DTD_MAX_HEIGHT_MASK; }

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/* * configuration descriptor */ struct vpdma_cfd { union { u32 dest_addr_offset; u32 w0; }; union { u32 block_len; /* in words */ u32 w1; }; u32 payload_addr; u32 ctl_payload_len; /* in words */ }; /* Configuration descriptor specifics */ #define CFD_PKT_TYPE 0xb #define CFD_DIRECT 1 #define CFD_INDIRECT 0 #define CFD_CLS_ADB 0 #define CFD_CLS_BLOCK 1 /* block_len */ #define CFD__BLOCK_LEN_MASK 0xffff #define CFD__BLOCK_LEN_SHFT 0 /* ctl_payload_len */ #define CFD_PKT_TYPE_MASK 0x1f #define CFD_PKT_TYPE_SHFT 27 #define CFD_DIRECT_MASK 0x01 #define CFD_DIRECT_SHFT 26 #define CFD_CLASS_MASK 0x03 #define CFD_CLASS_SHFT 24 #define CFD_DEST_MASK 0xff #define CFD_DEST_SHFT 16 #define CFD_PAYLOAD_LEN_MASK 0xffff #define CFD_PAYLOAD_LEN_SHFT 0
static inline u32 cfd_pkt_payload_len(bool direct, int cls, int dest, int payload_len) { return (CFD_PKT_TYPE << CFD_PKT_TYPE_SHFT) | (direct << CFD_DIRECT_SHFT) | (cls << CFD_CLASS_SHFT) | (dest << CFD_DEST_SHFT) | payload_len; }

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static inline int cfd_get_pkt_type(struct vpdma_cfd *cfd) { return cfd->ctl_payload_len >> CFD_PKT_TYPE_SHFT; }

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static inline bool cfd_get_direct(struct vpdma_cfd *cfd) { return (cfd->ctl_payload_len >> CFD_DIRECT_SHFT) & CFD_DIRECT_MASK; }

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static inline bool cfd_get_class(struct vpdma_cfd *cfd) { return (cfd->ctl_payload_len >> CFD_CLASS_SHFT) & CFD_CLASS_MASK; }

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static inline int cfd_get_dest(struct vpdma_cfd *cfd) { return (cfd->ctl_payload_len >> CFD_DEST_SHFT) & CFD_DEST_MASK; }

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static inline int cfd_get_payload_len(struct vpdma_cfd *cfd) { return cfd->ctl_payload_len & CFD_PAYLOAD_LEN_MASK; }

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/* * control descriptor */ struct vpdma_ctd { union { u32 timer_value; u32 list_addr; u32 w0; }; union { u32 pixel_line_count; u32 list_size; u32 w1; }; union { u32 event; u32 fid_ctl; u32 w2; }; u32 type_source_ctl; }; /* control descriptor types */ #define CTD_TYPE_SYNC_ON_CLIENT 0 #define CTD_TYPE_SYNC_ON_LIST 1 #define CTD_TYPE_SYNC_ON_EXT 2 #define CTD_TYPE_SYNC_ON_LM_TIMER 3 #define CTD_TYPE_SYNC_ON_CHANNEL 4 #define CTD_TYPE_CHNG_CLIENT_IRQ 5 #define CTD_TYPE_SEND_IRQ 6 #define CTD_TYPE_RELOAD_LIST 7 #define CTD_TYPE_ABORT_CHANNEL 8 #define CTD_PKT_TYPE 0xc /* timer_value */ #define CTD_TIMER_VALUE_MASK 0xffff #define CTD_TIMER_VALUE_SHFT 0 /* pixel_line_count */ #define CTD_PIXEL_COUNT_MASK 0xffff #define CTD_PIXEL_COUNT_SHFT 16 #define CTD_LINE_COUNT_MASK 0xffff #define CTD_LINE_COUNT_SHFT 0 /* list_size */ #define CTD_LIST_SIZE_MASK 0xffff #define CTD_LIST_SIZE_SHFT 0 /* event */ #define CTD_EVENT_MASK 0x0f #define CTD_EVENT_SHFT 0 /* fid_ctl */ #define CTD_FID2_MASK 0x03 #define CTD_FID2_SHFT 4 #define CTD_FID1_MASK 0x03 #define CTD_FID1_SHFT 2 #define CTD_FID0_MASK 0x03 #define CTD_FID0_SHFT 0 /* type_source_ctl */ #define CTD_PKT_TYPE_MASK 0x1f #define CTD_PKT_TYPE_SHFT 27 #define CTD_SOURCE_MASK 0xff #define CTD_SOURCE_SHFT 16 #define CTD_CONTROL_MASK 0x0f #define CTD_CONTROL_SHFT 0
static inline u32 ctd_pixel_line_count(int pixel_count, int line_count) { return (pixel_count << CTD_PIXEL_COUNT_SHFT) | line_count; }

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static inline u32 ctd_set_fid_ctl(int fid0, int fid1, int fid2) { return (fid2 << CTD_FID2_SHFT) | (fid1 << CTD_FID1_SHFT) | fid0; }

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static inline u32 ctd_type_source_ctl(int source, int control) { return (CTD_PKT_TYPE << CTD_PKT_TYPE_SHFT) | (source << CTD_SOURCE_SHFT) | control; }

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static inline u32 ctd_get_pixel_count(struct vpdma_ctd *ctd) { return ctd->pixel_line_count >> CTD_PIXEL_COUNT_SHFT; }

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static inline int ctd_get_line_count(struct vpdma_ctd *ctd) { return ctd->pixel_line_count & CTD_LINE_COUNT_MASK; }

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static inline int ctd_get_event(struct vpdma_ctd *ctd) { return ctd->event & CTD_EVENT_MASK; }

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static inline int ctd_get_fid2_ctl(struct vpdma_ctd *ctd) { return (ctd->fid_ctl >> CTD_FID2_SHFT) & CTD_FID2_MASK; }

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static inline int ctd_get_fid1_ctl(struct vpdma_ctd *ctd) { return (ctd->fid_ctl >> CTD_FID1_SHFT) & CTD_FID1_MASK; }

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static inline int ctd_get_fid0_ctl(struct vpdma_ctd *ctd) { return ctd->fid_ctl & CTD_FID2_MASK; }

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static inline int ctd_get_pkt_type(struct vpdma_ctd *ctd) { return ctd->type_source_ctl >> CTD_PKT_TYPE_SHFT; }

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static inline int ctd_get_source(struct vpdma_ctd *ctd) { return (ctd->type_source_ctl >> CTD_SOURCE_SHFT) & CTD_SOURCE_MASK; }

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static inline int ctd_get_ctl(struct vpdma_ctd *ctd) { return ctd->type_source_ctl & CTD_CONTROL_MASK; }

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#endif

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