/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Support for Intel Camera Imaging ISP subsystem.
 * Copyright (c) 2015, Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */

#ifndef _SH_CSS_INTERNAL_H_
#define _SH_CSS_INTERNAL_H_

#include <system_global.h>
#include <math_support.h>
#include <type_support.h>
#include <platform_support.h>
#include <linux/stdarg.h>

#include "input_formatter.h"
#include "input_system.h"

#include "ia_css_types.h"
#include "ia_css_acc_types.h"
#include "ia_css_buffer.h"

#include "ia_css_binary.h"
#include "sh_css_firmware.h" /* not needed/desired on SP/ISP */
#include "sh_css_legacy.h"
#include "sh_css_defs.h"
#include "sh_css_uds.h"
#include "dma.h"	/* N_DMA_CHANNEL_ID */
#include "ia_css_circbuf_comm.h" /* Circular buffer */
#include "ia_css_frame_comm.h"
#include "ia_css_3a.h"
#include "ia_css_dvs.h"
#include "ia_css_metadata.h"
#include "runtime/bufq/interface/ia_css_bufq.h"
#include "ia_css_timer.h"

/* TODO: Move to a more suitable place when sp pipeline design is done. */
#define IA_CSS_NUM_CB_SEM_READ_RESOURCE	2
#define IA_CSS_NUM_CB_SEM_WRITE_RESOURCE	1
#define IA_CSS_NUM_CBS						2
#define IA_CSS_CB_MAX_ELEMS					2

/* Use case specific. index limited to IA_CSS_NUM_CB_SEM_READ_RESOURCE or
 * IA_CSS_NUM_CB_SEM_WRITE_RESOURCE for read and write respectively.
 * TODO: Enforce the limitation above.
*/
#define IA_CSS_COPYSINK_SEM_INDEX	0
#define IA_CSS_TAGGER_SEM_INDEX	1

/* Force generation of output event. Used by acceleration pipe. */
#define IA_CSS_POST_OUT_EVENT_FORCE		2

#define SH_CSS_MAX_BINARY_NAME	64

#define SP_DEBUG_NONE	(0)
#define SP_DEBUG_DUMP	(1)
#define SP_DEBUG_COPY	(2)
#define SP_DEBUG_TRACE	(3)
#define SP_DEBUG_MINIMAL (4)

#define SP_DEBUG SP_DEBUG_NONE
#define SP_DEBUG_MINIMAL_OVERWRITE 1

#define SH_CSS_TNR_BIT_DEPTH 8
#define SH_CSS_REF_BIT_DEPTH 8

/* keep next up to date with the definition for MAX_CB_ELEMS_FOR_TAGGER in tagger.sp.c */
#define NUM_CONTINUOUS_FRAMES	15
#define NUM_MIPI_FRAMES_PER_STREAM		2

#define NUM_ONLINE_INIT_CONTINUOUS_FRAMES      2

#define NR_OF_PIPELINES			IA_CSS_PIPE_ID_NUM /* Must match with IA_CSS_PIPE_ID_NUM */

#define SH_CSS_MAX_IF_CONFIGS	3 /* Must match with IA_CSS_NR_OF_CONFIGS (not defined yet).*/
#define SH_CSS_IF_CONFIG_NOT_NEEDED	0xFF

#define SH_CSS_MAX_SP_THREADS		5

/**
 * The C99 standard does not specify the exact object representation of structs;
 * the representation is compiler dependent.
 *
 * The structs that are communicated between host and SP/ISP should have the
 * exact same object representation. The compiler that is used to compile the
 * firmware is hivecc.
 *
 * To check if a different compiler, used to compile a host application, uses
 * another object representation, macros are defined specifying the size of
 * the structs as expected by the firmware.
 *
 * A host application shall verify that a sizeof( ) of the struct is equal to
 * the SIZE_OF_XXX macro of the corresponding struct. If they are not
 * equal, functionality will break.
 */
#define CALC_ALIGNMENT_MEMBER(x, y)	(CEIL_MUL(x, y) - x)
#define SIZE_OF_HRT_VADDRESS		sizeof(hive_uint32)
#define SIZE_OF_IA_CSS_PTR		sizeof(uint32_t)

/* Number of SP's */
#define NUM_OF_SPS 1

#define NUM_OF_BLS 0

/* Enum for order of Binaries */
enum sh_css_order_binaries {
	SP_FIRMWARE = 0,
	ISP_FIRMWARE
};

/*
* JB: keep next enum in sync with thread id's
* and pipe id's
*/
enum sh_css_pipe_config_override {
	SH_CSS_PIPE_CONFIG_OVRD_NONE     = 0,
	SH_CSS_PIPE_CONFIG_OVRD_NO_OVRD  = 0xffff
};

enum host2sp_commands {
	host2sp_cmd_error = 0,
	/*
	 * The host2sp_cmd_ready command is the only command written by the SP
	 * It acknowledges that is previous command has been received.
	 * (this does not mean that the command has been executed)
	 * It also indicates that a new command can be send (it is a queue
	 * with depth 1).
	 */
	host2sp_cmd_ready = 1,
	/* Command written by the Host */
	host2sp_cmd_dummy,		/* No action, can be used as watchdog */
	host2sp_cmd_start_flash,	/* Request SP to start the flash */
	host2sp_cmd_terminate,		/* SP should terminate itself */
	N_host2sp_cmd
};

/* Enumeration used to indicate the events that are produced by
 *  the SP and consumed by the Host.
 *
 * !!!IMPORTANT!!! KEEP THE FOLLOWING IN SYNC:
 * 1) "enum ia_css_event_type"					(ia_css_event_public.h)
 * 2) "enum sh_css_sp_event_type"				(sh_css_internal.h)
 * 3) "enum ia_css_event_type event_id_2_event_mask"		(event_handler.sp.c)
 * 4) "enum ia_css_event_type convert_event_sp_to_host_domain"	(sh_css.c)
 */
enum sh_css_sp_event_type {
	SH_CSS_SP_EVENT_OUTPUT_FRAME_DONE,
	SH_CSS_SP_EVENT_SECOND_OUTPUT_FRAME_DONE,
	SH_CSS_SP_EVENT_VF_OUTPUT_FRAME_DONE,
	SH_CSS_SP_EVENT_SECOND_VF_OUTPUT_FRAME_DONE,
	SH_CSS_SP_EVENT_3A_STATISTICS_DONE,
	SH_CSS_SP_EVENT_DIS_STATISTICS_DONE,
	SH_CSS_SP_EVENT_PIPELINE_DONE,
	SH_CSS_SP_EVENT_FRAME_TAGGED,
	SH_CSS_SP_EVENT_INPUT_FRAME_DONE,
	SH_CSS_SP_EVENT_METADATA_DONE,
	SH_CSS_SP_EVENT_LACE_STATISTICS_DONE,
	SH_CSS_SP_EVENT_ACC_STAGE_COMPLETE,
	SH_CSS_SP_EVENT_TIMER,
	SH_CSS_SP_EVENT_PORT_EOF,
	SH_CSS_SP_EVENT_FW_WARNING,
	SH_CSS_SP_EVENT_FW_ASSERT,
	SH_CSS_SP_EVENT_NR_OF_TYPES		/* must be last */
};

/* xmem address map allocation per pipeline, css pointers */
/* Note that the struct below should only consist of ia_css_ptr-es
   Otherwise this will cause a fail in the function ref_sh_css_ddr_address_map
 */
struct sh_css_ddr_address_map {
	ia_css_ptr isp_param;
	ia_css_ptr isp_mem_param[SH_CSS_MAX_STAGES][IA_CSS_NUM_MEMORIES];
	ia_css_ptr macc_tbl;
	ia_css_ptr fpn_tbl;
	ia_css_ptr sc_tbl;
	ia_css_ptr tetra_r_x;
	ia_css_ptr tetra_r_y;
	ia_css_ptr tetra_gr_x;
	ia_css_ptr tetra_gr_y;
	ia_css_ptr tetra_gb_x;
	ia_css_ptr tetra_gb_y;
	ia_css_ptr tetra_b_x;
	ia_css_ptr tetra_b_y;
	ia_css_ptr tetra_ratb_x;
	ia_css_ptr tetra_ratb_y;
	ia_css_ptr tetra_batr_x;
	ia_css_ptr tetra_batr_y;
	ia_css_ptr dvs_6axis_params_y;
};

#define SIZE_OF_SH_CSS_DDR_ADDRESS_MAP_STRUCT					\
	(SIZE_OF_HRT_VADDRESS +							\
	(SH_CSS_MAX_STAGES * IA_CSS_NUM_MEMORIES * SIZE_OF_HRT_VADDRESS) +	\
	(16 * SIZE_OF_HRT_VADDRESS))

/* xmem address map allocation per pipeline */
struct sh_css_ddr_address_map_size {
	size_t isp_param;
	size_t isp_mem_param[SH_CSS_MAX_STAGES][IA_CSS_NUM_MEMORIES];
	size_t macc_tbl;
	size_t fpn_tbl;
	size_t sc_tbl;
	size_t tetra_r_x;
	size_t tetra_r_y;
	size_t tetra_gr_x;
	size_t tetra_gr_y;
	size_t tetra_gb_x;
	size_t tetra_gb_y;
	size_t tetra_b_x;
	size_t tetra_b_y;
	size_t tetra_ratb_x;
	size_t tetra_ratb_y;
	size_t tetra_batr_x;
	size_t tetra_batr_y;
	size_t dvs_6axis_params_y;
};

struct sh_css_ddr_address_map_compound {
	struct sh_css_ddr_address_map		map;
	struct sh_css_ddr_address_map_size	size;
};

struct ia_css_isp_parameter_set_info {
	struct sh_css_ddr_address_map
		mem_map;/** pointers to Parameters in ISP format IMPT:
						    This should be first member of this struct */
	u32
	isp_parameters_id;/** Unique ID to track which config was actually applied to a particular frame */
	ia_css_ptr
	output_frame_ptr;/** Output frame to which this config has to be applied (optional) */
};

/* this struct contains all arguments that can be passed to
   a binary. It depends on the binary which ones are used. */
struct sh_css_binary_args {
	struct ia_css_frame *in_frame;	     /* input frame */
	const struct ia_css_frame
		*delay_frames[MAX_NUM_VIDEO_DELAY_FRAMES];   /* reference input frame */
	const struct ia_css_frame *tnr_frames[NUM_VIDEO_TNR_FRAMES];   /* tnr frames */
	struct ia_css_frame
		*out_frame[IA_CSS_BINARY_MAX_OUTPUT_PORTS];      /* output frame */
	struct ia_css_frame *out_vf_frame;   /* viewfinder output frame */
	bool                 copy_vf;
	bool                 copy_output;
	unsigned int vf_downscale_log2;
};

#if SP_DEBUG == SP_DEBUG_DUMP

#define SH_CSS_NUM_SP_DEBUG 48

struct sh_css_sp_debug_state {
	unsigned int error;
	unsigned int debug[SH_CSS_NUM_SP_DEBUG];
};

#elif SP_DEBUG == SP_DEBUG_COPY

#define SH_CSS_SP_DBG_TRACE_DEPTH	(40)

struct sh_css_sp_debug_trace {
	u16 frame;
	u16 line;
	u16 pixel_distance;
	u16 mipi_used_dword;
	u16 sp_index;
};

struct sh_css_sp_debug_state {
	u16 if_start_line;
	u16 if_start_column;
	u16 if_cropped_height;
	u16 if_cropped_width;
	unsigned int index;
	struct sh_css_sp_debug_trace
		trace[SH_CSS_SP_DBG_TRACE_DEPTH];
};

#elif SP_DEBUG == SP_DEBUG_TRACE

/* Example of just one global trace */
#define SH_CSS_SP_DBG_NR_OF_TRACES	(1)
#define SH_CSS_SP_DBG_TRACE_DEPTH	(40)

#define SH_CSS_SP_DBG_TRACE_FILE_ID_BIT_POS (13)

struct sh_css_sp_debug_trace {
	u16 time_stamp;
	u16 location;	/* bit 15..13 = file_id, 12..0 = line nr. */
	u32 data;
};

struct sh_css_sp_debug_state {
	struct sh_css_sp_debug_trace
		trace[SH_CSS_SP_DBG_NR_OF_TRACES][SH_CSS_SP_DBG_TRACE_DEPTH];
	u16 index_last[SH_CSS_SP_DBG_NR_OF_TRACES];
	u8 index[SH_CSS_SP_DBG_NR_OF_TRACES];
};

#elif SP_DEBUG == SP_DEBUG_MINIMAL

#define SH_CSS_NUM_SP_DEBUG 128

struct sh_css_sp_debug_state {
	unsigned int error;
	unsigned int debug[SH_CSS_NUM_SP_DEBUG];
};

#endif

struct sh_css_sp_debug_command {
	/*
	 * The DMA software-mask,
	 *	Bit 31...24: unused.
	 *	Bit 23...16: unused.
	 *	Bit 15...08: reading-request enabling bits for DMA channel 7..0
	 *	Bit 07...00: writing-request enabling bits for DMA channel 7..0
	 *
	 * For example, "0...0 0...0 11111011 11111101" indicates that the
	 * writing request through DMA Channel 1 and the reading request
	 * through DMA channel 2 are both disabled. The others are enabled.
	 */
	u32 dma_sw_reg;
};

/* SP input formatter configuration.*/
struct sh_css_sp_input_formatter_set {
	u32				stream_format;
	input_formatter_cfg_t	config_a;
	input_formatter_cfg_t	config_b;
};

#define IA_CSS_MIPI_SIZE_CHECK_MAX_NOF_ENTRIES_PER_PORT (3)

/* SP configuration information */
struct sh_css_sp_config {
	u8			no_isp_sync; /* Signal host immediately after start */
	u8			enable_raw_pool_locking; /** Enable Raw Buffer Locking for HALv3 Support */
	u8			lock_all;
	/** If raw buffer locking is enabled, this flag indicates whether raw
	     frames are locked when their EOF event is successfully sent to the
	     host (true) or when they are passed to the preview/video pipe
	     (false). */

	struct {
		u8					a_changed;
		u8					b_changed;
		u8					isp_2ppc;
		struct sh_css_sp_input_formatter_set
			set[SH_CSS_MAX_IF_CONFIGS]; /* CSI-2 port is used as index. */
	} input_formatter;

	sync_generator_cfg_t	sync_gen;
	tpg_cfg_t		tpg;
	prbs_cfg_t		prbs;
	input_system_cfg_t	input_circuit;
	u8			input_circuit_cfg_changed;
	u32		mipi_sizes_for_check[N_CSI_PORTS][IA_CSS_MIPI_SIZE_CHECK_MAX_NOF_ENTRIES_PER_PORT];
	u8                 enable_isys_event_queue;
	u8			disable_cont_vf;
};

enum sh_css_stage_type {
	SH_CSS_SP_STAGE_TYPE  = 0,
	SH_CSS_ISP_STAGE_TYPE = 1
};

#define SH_CSS_NUM_STAGE_TYPES 2

#define SH_CSS_PIPE_CONFIG_SAMPLE_PARAMS	BIT(0)
#define SH_CSS_PIPE_CONFIG_SAMPLE_PARAMS_MASK \
	((SH_CSS_PIPE_CONFIG_SAMPLE_PARAMS << SH_CSS_MAX_SP_THREADS) - 1)

struct sh_css_sp_pipeline_terminal {
	union {
		/* Input System 2401 */
		virtual_input_system_stream_t
		virtual_input_system_stream[IA_CSS_STREAM_MAX_ISYS_STREAM_PER_CH];
	} context;
	/*
	 * TODO
	 * - Remove "virtual_input_system_cfg" when the ISYS2401 DLI is ready.
	 */
	union {
		/* Input System 2401 */
		virtual_input_system_stream_cfg_t
		virtual_input_system_stream_cfg[IA_CSS_STREAM_MAX_ISYS_STREAM_PER_CH];
	} ctrl;
};

struct sh_css_sp_pipeline_io {
	struct sh_css_sp_pipeline_terminal	input;
	/* pqiao: comment out temporarily to save dmem */
	/*struct sh_css_sp_pipeline_terminal	output;*/
};

/* This struct tracks how many streams are registered per CSI port.
 * This is used to track which streams have already been configured.
 * Only when all streams are configured, the CSI RX is started for that port.
 */
struct sh_css_sp_pipeline_io_status {
	u32	active[N_INPUT_SYSTEM_CSI_PORT];	/** registered streams */
	u32	running[N_INPUT_SYSTEM_CSI_PORT];	/** configured streams */
};

enum sh_css_port_dir {
	SH_CSS_PORT_INPUT  = 0,
	SH_CSS_PORT_OUTPUT  = 1
};

enum sh_css_port_type {
	SH_CSS_HOST_TYPE  = 0,
	SH_CSS_COPYSINK_TYPE  = 1,
	SH_CSS_TAGGERSINK_TYPE  = 2
};

/* Pipe inout settings: output port on 7-4bits, input port on 3-0bits */
#define SH_CSS_PORT_FLD_WIDTH_IN_BITS (4)
#define SH_CSS_PORT_TYPE_BIT_FLD(pt) (0x1 << (pt))
#define SH_CSS_PORT_FLD(pd) ((pd) ? SH_CSS_PORT_FLD_WIDTH_IN_BITS : 0)
#define SH_CSS_PIPE_PORT_CONFIG_ON(p, pd, pt) ((p) |= (SH_CSS_PORT_TYPE_BIT_FLD(pt) << SH_CSS_PORT_FLD(pd)))
#define SH_CSS_PIPE_PORT_CONFIG_OFF(p, pd, pt) ((p) &= ~(SH_CSS_PORT_TYPE_BIT_FLD(pt) << SH_CSS_PORT_FLD(pd)))
#define SH_CSS_PIPE_PORT_CONFIG_SET(p, pd, pt, val) ((val) ? \
		SH_CSS_PIPE_PORT_CONFIG_ON(p, pd, pt) : SH_CSS_PIPE_PORT_CONFIG_OFF(p, pd, pt))
#define SH_CSS_PIPE_PORT_CONFIG_GET(p, pd, pt) ((p) & (SH_CSS_PORT_TYPE_BIT_FLD(pt) << SH_CSS_PORT_FLD(pd)))
#define SH_CSS_PIPE_PORT_CONFIG_IS_CONTINUOUS(p) \
	(!(SH_CSS_PIPE_PORT_CONFIG_GET(p, SH_CSS_PORT_INPUT, SH_CSS_HOST_TYPE) && \
	   SH_CSS_PIPE_PORT_CONFIG_GET(p, SH_CSS_PORT_OUTPUT, SH_CSS_HOST_TYPE)))

#define IA_CSS_ACQUIRE_ISP_POS	31

/* Flags for metadata processing */
#define SH_CSS_METADATA_ENABLED        0x01
#define SH_CSS_METADATA_PROCESSED      0x02
#define SH_CSS_METADATA_OFFLINE_MODE   0x04
#define SH_CSS_METADATA_WAIT_INPUT     0x08

/* @brief Free an array of metadata buffers.
 *
 * @param[in]	num_bufs	Number of metadata buffers to be freed.
 * @param[in]	bufs		Pointer of array of metadata buffers.
 *
 * This function frees an array of metadata buffers.
 */
void
ia_css_metadata_free_multiple(unsigned int num_bufs,
			      struct ia_css_metadata **bufs);

/* Macro for handling pipe_qos_config */
#define QOS_INVALID                  (~0U)

/* Information for a pipeline */
struct sh_css_sp_pipeline {
	u32	pipe_id;	/* the pipe ID */
	u32	pipe_num;	/* the dynamic pipe number */
	u32	thread_id;	/* the sp thread ID */
	u32	pipe_config;	/* the pipe config */
	u32	pipe_qos_config;	/* Bitmap of multiple QOS extension fw state.
						(0xFFFFFFFF) indicates non QOS pipe.*/
	u32	inout_port_config;
	u32	required_bds_factor;
	u32	dvs_frame_delay;
	u32	input_system_mode;	/* enum ia_css_input_mode */
	u32	port_id;	/* port_id for input system */
	u32	num_stages;		/* the pipe config */
	u32	running;	/* needed for pipe termination */
	ia_css_ptr	sp_stage_addr[SH_CSS_MAX_STAGES];
	ia_css_ptr	scaler_pp_lut; /* Early bound LUT */
	u32	dummy; /* stage ptr is only used on sp but lives in
				  this struct; needs cleanup */
	s32 num_execs; /* number of times to run if this is
			      an acceleration pipe. */
	struct {
		u32        format;   /* Metadata format in hrt format */
		u32        width;    /* Width of a line */
		u32        height;   /* Number of lines */
		u32        stride;   /* Stride (in bytes) per line */
		u32        size;     /* Total size (in bytes) */
		ia_css_ptr    cont_buf; /* Address of continuous buffer */
	} metadata;
	u32	output_frame_queue_id;
	union {
		struct {
			u32	bytes_available;
		} bin;
		struct {
			u32	height;
			u32	width;
			u32	padded_width;
			u32	max_input_width;
			u32	raw_bit_depth;
		} raw;
	} copy;
};

/*
 * The first frames (with comment Dynamic) can be dynamic or static
 * The other frames (ref_in and below) can only be static
 * Static means that the data address will not change during the life time
 * of the associated pipe. Dynamic means that the data address can
 * change with every (frame) iteration of the associated pipe
 *
 * s3a and dis are now also dynamic but (stil) handled separately
 */
#define SH_CSS_NUM_DYNAMIC_FRAME_IDS (3)

struct ia_css_frames_sp {
	struct ia_css_frame_sp	in;
	struct ia_css_frame_sp	out[IA_CSS_BINARY_MAX_OUTPUT_PORTS];
	struct ia_css_resolution effective_in_res;
	struct ia_css_frame_sp	out_vf;
	struct ia_css_frame_sp_info internal_frame_info;
	struct ia_css_buffer_sp s3a_buf;
	struct ia_css_buffer_sp dvs_buf;
	struct ia_css_buffer_sp metadata_buf;
};

/* Information for a single pipeline stage for an ISP */
struct sh_css_isp_stage {
	/*
	 * For compatibility and portabilty, only types
	 * from "stdint.h" are allowed
	 *
	 * Use of "enum" and "bool" is prohibited
	 * Multiple boolean flags can be stored in an
	 * integer
	 */
	struct ia_css_blob_info	  blob_info;
	struct ia_css_binary_info binary_info;
	char			  binary_name[SH_CSS_MAX_BINARY_NAME];
	struct ia_css_isp_param_css_segments mem_initializers;
};

/* Information for a single pipeline stage */
struct sh_css_sp_stage {
	/*
	 * For compatibility and portabilty, only types
	 * from "stdint.h" are allowed
	 *
	 * Use of "enum" and "bool" is prohibited
	 * Multiple boolean flags can be stored in an
	 * integer
	 */
	u8			num; /* Stage number */
	u8			isp_online;
	u8			isp_copy_vf;
	u8			isp_copy_output;
	u8			sp_enable_xnr;
	u8			isp_deci_log_factor;
	u8			isp_vf_downscale_bits;
	u8			deinterleaved;
	/*
	 * NOTE: Programming the input circuit can only be done at the
	 * start of a session. It is illegal to program it during execution
	 * The input circuit defines the connectivity
	 */
	u8			program_input_circuit;
	/* enum ia_css_pipeline_stage_sp_func	func; */
	u8			func;
	/* The type of the pipe-stage */
	/* enum sh_css_stage_type	stage_type; */
	u8			stage_type;
	u8			num_stripes;
	u8			isp_pipe_version;
	struct {
		u8		vf_output;
		u8		s3a;
		u8		sdis;
		u8		dvs_stats;
		u8		lace_stats;
	} enable;
	/* Add padding to come to a word boundary */
	/* unsigned char			padding[0]; */

	struct sh_css_crop_pos		sp_out_crop_pos;
	struct ia_css_frames_sp		frames;
	struct ia_css_resolution	dvs_envelope;
	struct sh_css_uds_info		uds;
	ia_css_ptr			isp_stage_addr;
	ia_css_ptr			xmem_bin_addr;
	ia_css_ptr			xmem_map_addr;

	u16		top_cropping;
	u16		row_stripes_height;
	u16		row_stripes_overlap_lines;
	u8			if_config_index; /* Which should be applied by this stage. */
};

/*
 * Time: 2012-07-19, 17:40.
 * Note: Add a new data memeber "debug" in "sh_css_sp_group". This
 * data member is used to pass the debugging command from the
 * Host to the SP.
 *
 * Time: Before 2012-07-19.
 * Note:
 * Group all host initialized SP variables into this struct.
 * This is initialized every stage through dma.
 * The stage part itself is transferred through sh_css_sp_stage.
*/
struct sh_css_sp_group {
	struct sh_css_sp_config		config;
	struct sh_css_sp_pipeline	pipe[SH_CSS_MAX_SP_THREADS];
	struct sh_css_sp_pipeline_io	pipe_io[SH_CSS_MAX_SP_THREADS];
	struct sh_css_sp_pipeline_io_status	pipe_io_status;
	struct sh_css_sp_debug_command	debug;
};

/* Data in SP dmem that is set from the host every stage. */
struct sh_css_sp_per_frame_data {
	/* ddr address of sp_group and sp_stage */
	ia_css_ptr			sp_group_addr;
};

#define SH_CSS_NUM_SDW_IRQS 3

/* Output data from SP to css */
struct sh_css_sp_output {
	unsigned int			bin_copy_bytes_copied;
#if SP_DEBUG != SP_DEBUG_NONE
	struct sh_css_sp_debug_state	debug;
#endif
	unsigned int		sw_interrupt_value[SH_CSS_NUM_SDW_IRQS];
};

/**
 * @brief Data structure for the circular buffer.
 * The circular buffer is empty if "start == end". The
 * circular buffer is full if "(end + 1) % size == start".
 */
/* Variable Sized Buffer Queue Elements */

#define  IA_CSS_NUM_ELEMS_HOST2SP_BUFFER_QUEUE    6
#define  IA_CSS_NUM_ELEMS_HOST2SP_PARAM_QUEUE    3
#define  IA_CSS_NUM_ELEMS_HOST2SP_TAG_CMD_QUEUE  6

/* sp-to-host queue is expected to be emptied in ISR since
 * it is used instead of HW interrupts (due to HW design issue).
 * We need one queue element per CSI port. */
#define  IA_CSS_NUM_ELEMS_SP2HOST_ISYS_EVENT_QUEUE (2 * N_CSI_PORTS)
/* The host-to-sp queue needs to allow for some delay
 * in the emptying of this queue in the SP since there is no
 * separate SP thread for this. */
#define  IA_CSS_NUM_ELEMS_HOST2SP_ISYS_EVENT_QUEUE (2 * N_CSI_PORTS)

#define  IA_CSS_NUM_ELEMS_HOST2SP_PSYS_EVENT_QUEUE    13
#define  IA_CSS_NUM_ELEMS_SP2HOST_BUFFER_QUEUE        19
#define  IA_CSS_NUM_ELEMS_SP2HOST_PSYS_EVENT_QUEUE    26 /* holds events for all type of buffers, hence deeper */

struct sh_css_hmm_buffer {
	union {
		struct ia_css_isp_3a_statistics  s3a;
		struct ia_css_isp_dvs_statistics dis;
		ia_css_ptr skc_dvs_statistics;
		ia_css_ptr lace_stat;
		struct ia_css_metadata	metadata;
		struct frame_data_wrapper {
			ia_css_ptr	frame_data;
			u32	flashed;
			u32	exp_id;
			u32	isp_parameters_id; /** Unique ID to track which config was
								actually applied to a particular frame */
		} frame;
		ia_css_ptr ddr_ptrs;
	} payload;
	/*
	 * kernel_ptr is present for host administration purposes only.
	 * type is uint64_t in order to be 64-bit host compatible.
	 * uint64_t does not exist on SP/ISP.
	 * Size of the struct is checked by sp.hive.c.
	 */
	CSS_ALIGN(u64 cookie_ptr, 8); /* TODO: check if this alignment is needed */
	u64 kernel_ptr;
	struct ia_css_time_meas timing_data;
	clock_value_t isys_eof_clock_tick;
};

#define SIZE_OF_FRAME_STRUCT						\
	(SIZE_OF_HRT_VADDRESS +						\
	(3 * sizeof(uint32_t)))

#define SIZE_OF_PAYLOAD_UNION						\
	(MAX(MAX(MAX(MAX(						\
	SIZE_OF_IA_CSS_ISP_3A_STATISTICS_STRUCT,			\
	SIZE_OF_IA_CSS_ISP_DVS_STATISTICS_STRUCT),			\
	SIZE_OF_IA_CSS_METADATA_STRUCT),				\
	SIZE_OF_FRAME_STRUCT),						\
	SIZE_OF_HRT_VADDRESS))

/* Do not use sizeof(uint64_t) since that does not exist of SP */
#define SIZE_OF_SH_CSS_HMM_BUFFER_STRUCT				\
	(SIZE_OF_PAYLOAD_UNION +					\
	CALC_ALIGNMENT_MEMBER(SIZE_OF_PAYLOAD_UNION, 8) +		\
	8 +						\
	8 +						\
	SIZE_OF_IA_CSS_TIME_MEAS_STRUCT +				\
	SIZE_OF_IA_CSS_CLOCK_TICK_STRUCT +			\
	CALC_ALIGNMENT_MEMBER(SIZE_OF_IA_CSS_CLOCK_TICK_STRUCT, 8))

enum sh_css_queue_type {
	sh_css_invalid_queue_type = -1,
	sh_css_host2sp_buffer_queue,
	sh_css_sp2host_buffer_queue,
	sh_css_host2sp_psys_event_queue,
	sh_css_sp2host_psys_event_queue,
	sh_css_sp2host_isys_event_queue,
	sh_css_host2sp_isys_event_queue,
	sh_css_host2sp_tag_cmd_queue,
};

struct sh_css_event_irq_mask {
	u16 or_mask;
	u16 and_mask;
};

#define SIZE_OF_SH_CSS_EVENT_IRQ_MASK_STRUCT				\
	(2 * sizeof(uint16_t))

struct host_sp_communication {
	/*
	 * Don't use enum host2sp_commands, because the sizeof an enum is
	 * compiler dependent and thus non-portable
	 */
	u32 host2sp_command;

	/*
	 * The frame buffers that are reused by the
	 * copy pipe in the offline preview mode.
	 *
	 * host2sp_offline_frames[0]: the input frame of the preview pipe.
	 * host2sp_offline_frames[1]: the output frame of the copy pipe.
	 *
	 * TODO:
	 *   Remove it when the Host and the SP is decoupled.
	 */
	ia_css_ptr host2sp_offline_frames[NUM_CONTINUOUS_FRAMES];
	ia_css_ptr host2sp_offline_metadata[NUM_CONTINUOUS_FRAMES];

	ia_css_ptr host2sp_mipi_frames[N_CSI_PORTS][NUM_MIPI_FRAMES_PER_STREAM];
	ia_css_ptr host2sp_mipi_metadata[N_CSI_PORTS][NUM_MIPI_FRAMES_PER_STREAM];
	u32 host2sp_num_mipi_frames[N_CSI_PORTS];
	u32 host2sp_cont_avail_num_raw_frames;
	u32 host2sp_cont_extra_num_raw_frames;
	u32 host2sp_cont_target_num_raw_frames;
	struct sh_css_event_irq_mask host2sp_event_irq_mask[NR_OF_PIPELINES];

};

#define SIZE_OF_HOST_SP_COMMUNICATION_STRUCT				\
	(sizeof(uint32_t) +						\
	(NUM_CONTINUOUS_FRAMES * SIZE_OF_HRT_VADDRESS * 2) +		\
	(N_CSI_PORTS * NUM_MIPI_FRAMES_PER_STREAM * SIZE_OF_HRT_VADDRESS * 2) +			\
	((3 + N_CSI_PORTS) * sizeof(uint32_t)) +						\
	(NR_OF_PIPELINES * SIZE_OF_SH_CSS_EVENT_IRQ_MASK_STRUCT))

struct host_sp_queues {
	/*
	 * Queues for the dynamic frame information,
	 * i.e. the "in_frame" buffer, the "out_frame"
	 * buffer and the "vf_out_frame" buffer.
	 */
	ia_css_circbuf_desc_t host2sp_buffer_queues_desc
	[SH_CSS_MAX_SP_THREADS][SH_CSS_MAX_NUM_QUEUES];
	ia_css_circbuf_elem_t host2sp_buffer_queues_elems
	[SH_CSS_MAX_SP_THREADS][SH_CSS_MAX_NUM_QUEUES]
	[IA_CSS_NUM_ELEMS_HOST2SP_BUFFER_QUEUE];
	ia_css_circbuf_desc_t sp2host_buffer_queues_desc
	[SH_CSS_MAX_NUM_QUEUES];
	ia_css_circbuf_elem_t sp2host_buffer_queues_elems
	[SH_CSS_MAX_NUM_QUEUES][IA_CSS_NUM_ELEMS_SP2HOST_BUFFER_QUEUE];

	/*
	 * The queues for the events.
	 */
	ia_css_circbuf_desc_t host2sp_psys_event_queue_desc;

	ia_css_circbuf_elem_t host2sp_psys_event_queue_elems
	[IA_CSS_NUM_ELEMS_HOST2SP_PSYS_EVENT_QUEUE];
	ia_css_circbuf_desc_t sp2host_psys_event_queue_desc;

	ia_css_circbuf_elem_t sp2host_psys_event_queue_elems
	[IA_CSS_NUM_ELEMS_SP2HOST_PSYS_EVENT_QUEUE];

	/*
	 * The queues for the ISYS events.
	 */
	ia_css_circbuf_desc_t host2sp_isys_event_queue_desc;

	ia_css_circbuf_elem_t host2sp_isys_event_queue_elems
	[IA_CSS_NUM_ELEMS_HOST2SP_ISYS_EVENT_QUEUE];
	ia_css_circbuf_desc_t sp2host_isys_event_queue_desc;

	ia_css_circbuf_elem_t sp2host_isys_event_queue_elems
	[IA_CSS_NUM_ELEMS_SP2HOST_ISYS_EVENT_QUEUE];
	/*
	 * The queue for the tagger commands.
	 * CHECK: are these last two present on the 2401 ?
	 */
	ia_css_circbuf_desc_t host2sp_tag_cmd_queue_desc;

	ia_css_circbuf_elem_t host2sp_tag_cmd_queue_elems
	[IA_CSS_NUM_ELEMS_HOST2SP_TAG_CMD_QUEUE];
};

#define SIZE_OF_QUEUES_ELEMS							\
	(SIZE_OF_IA_CSS_CIRCBUF_ELEM_S_STRUCT *				\
	((SH_CSS_MAX_SP_THREADS * SH_CSS_MAX_NUM_QUEUES * IA_CSS_NUM_ELEMS_HOST2SP_BUFFER_QUEUE) + \
	(SH_CSS_MAX_NUM_QUEUES * IA_CSS_NUM_ELEMS_SP2HOST_BUFFER_QUEUE) +	\
	(IA_CSS_NUM_ELEMS_HOST2SP_PSYS_EVENT_QUEUE) +				\
	(IA_CSS_NUM_ELEMS_SP2HOST_PSYS_EVENT_QUEUE) +				\
	(IA_CSS_NUM_ELEMS_HOST2SP_ISYS_EVENT_QUEUE) +				\
	(IA_CSS_NUM_ELEMS_SP2HOST_ISYS_EVENT_QUEUE) +				\
	(IA_CSS_NUM_ELEMS_HOST2SP_TAG_CMD_QUEUE)))

#define IA_CSS_NUM_CIRCBUF_DESCS 5

#define SIZE_OF_QUEUES_DESC \
	((SH_CSS_MAX_SP_THREADS * SH_CSS_MAX_NUM_QUEUES * \
	  SIZE_OF_IA_CSS_CIRCBUF_DESC_S_STRUCT) + \
	 (SH_CSS_MAX_NUM_QUEUES * SIZE_OF_IA_CSS_CIRCBUF_DESC_S_STRUCT) + \
	 (IA_CSS_NUM_CIRCBUF_DESCS * SIZE_OF_IA_CSS_CIRCBUF_DESC_S_STRUCT))

#define SIZE_OF_HOST_SP_QUEUES_STRUCT		\
	(SIZE_OF_QUEUES_ELEMS + SIZE_OF_QUEUES_DESC)

extern int  __printf(1, 0) (*sh_css_printf)(const char *fmt, va_list args);

static inline void  __printf(1, 2) sh_css_print(const char *fmt, ...)
{
	va_list ap;

	if (sh_css_printf) {
		va_start(ap, fmt);
		sh_css_printf(fmt, ap);
		va_end(ap);
	}
}

static inline void  __printf(1, 0) sh_css_vprint(const char *fmt, va_list args)
{
	if (sh_css_printf)
		sh_css_printf(fmt, args);
}

/* The following #if is there because this header file is also included
   by SP and ISP code but they do not need this data and HIVECC has alignment
   issue with the firmware struct/union's.
   More permanent solution will be to refactor this include.
*/
ia_css_ptr sh_css_params_ddr_address_map(void);

int
sh_css_params_init(void);

void
sh_css_params_uninit(void);

void
sh_css_binary_args_reset(struct sh_css_binary_args *args);

/* Check two frames for equality (format, resolution, bits per element) */
bool
sh_css_frame_equal_types(const struct ia_css_frame *frame_a,
			 const struct ia_css_frame *frame_b);

bool
sh_css_frame_info_equal_resolution(const struct ia_css_frame_info *info_a,
				   const struct ia_css_frame_info *info_b);

void
sh_css_capture_enable_bayer_downscaling(bool enable);

void
sh_css_binary_print(const struct ia_css_binary *binary);

/* aligned argument of sh_css_frame_info_set_width can be used for an extra alignment requirement.
  When 0, no extra alignment is done. */
void
sh_css_frame_info_set_width(struct ia_css_frame_info *info,
			    unsigned int width,
			    unsigned int aligned);


unsigned int
sh_css_get_mipi_sizes_for_check(const unsigned int port,
				const unsigned int idx);


ia_css_ptr
sh_css_store_sp_group_to_ddr(void);

ia_css_ptr
sh_css_store_sp_stage_to_ddr(unsigned int pipe, unsigned int stage);

ia_css_ptr
sh_css_store_isp_stage_to_ddr(unsigned int pipe, unsigned int stage);

void
sh_css_update_uds_and_crop_info(
    const struct ia_css_binary_info *info,
    const struct ia_css_frame_info *in_frame_info,
    const struct ia_css_frame_info *out_frame_info,
    const struct ia_css_resolution *dvs_env,
    const struct ia_css_dz_config *zoom,
    const struct ia_css_vector *motion_vector,
    struct sh_css_uds_info *uds,		/* out */
    struct sh_css_crop_pos *sp_out_crop_pos,	/* out */

    bool enable_zoom
);

void
sh_css_invalidate_shading_tables(struct ia_css_stream *stream);

struct ia_css_pipeline *
ia_css_pipe_get_pipeline(const struct ia_css_pipe *pipe);

unsigned int
ia_css_pipe_get_pipe_num(const struct ia_css_pipe *pipe);

unsigned int
ia_css_pipe_get_isp_pipe_version(const struct ia_css_pipe *pipe);

bool
sh_css_continuous_is_enabled(uint8_t pipe_num);

struct ia_css_pipe *
find_pipe_by_num(uint32_t pipe_num);

void
ia_css_get_crop_offsets(
    struct ia_css_pipe *pipe,
    struct ia_css_frame_info *in_frame);

#endif /* _SH_CSS_INTERNAL_H_ */