ubuntu-linux-kernel/drivers/media/platform/sti/delta/delta-mjpeg-fw.h

/*
 * Copyright (C) STMicroelectronics SA 2015
 * Author: Hugues Fruchet <hugues.fruchet@st.com> for STMicroelectronics.
 * License terms:  GNU General Public License (GPL), version 2
 */

#ifndef DELTA_MJPEG_FW_H
#define DELTA_MJPEG_FW_H

/*
 * struct jpeg_decoded_buffer_address_t
 *
 * defines the addresses where the decoded picture/additional
 * info related to the block structures will be stored
 *
 * @display_luma_p:		address of the luma buffer
 * @display_chroma_p:		address of the chroma buffer
 */
struct jpeg_decoded_buffer_address_t {
	u32 luma_p;
	u32 chroma_p;
};

/*
 * struct jpeg_display_buffer_address_t
 *
 * defines the addresses (used by the Display Reconstruction block)
 * where the pictures to be displayed will be stored
 *
 * @struct_size:		size of the structure in bytes
 * @display_luma_p:		address of the luma buffer
 * @display_chroma_p:		address of the chroma buffer
 * @display_decimated_luma_p:	address of the decimated luma buffer
 * @display_decimated_chroma_p:	address of the decimated chroma buffer
 */
struct jpeg_display_buffer_address_t {
	u32 struct_size;
	u32 display_luma_p;
	u32 display_chroma_p;
	u32 display_decimated_luma_p;
	u32 display_decimated_chroma_p;
};

/*
 * used for enabling main/aux outputs for both display &
 * reference reconstruction blocks
 */
enum jpeg_rcn_ref_disp_enable_t {
	/* enable decimated (for display) reconstruction */
	JPEG_DISP_AUX_EN = 0x00000010,
	/* enable main (for display) reconstruction */
	JPEG_DISP_MAIN_EN = 0x00000020,
	/* enable both main & decimated (for display) reconstruction */
	JPEG_DISP_AUX_MAIN_EN = 0x00000030,
	/* enable only reference output(ex. for trick modes) */
	JPEG_REF_MAIN_EN = 0x00000100,
	/*
	 * enable reference output with decimated
	 * (for display) reconstruction
	 */
	JPEG_REF_MAIN_DISP_AUX_EN = 0x00000110,
	/*
	 * enable reference output with main
	 * (for display) reconstruction
	 */
	JPEG_REF_MAIN_DISP_MAIN_EN = 0x00000120,
	/*
	 * enable reference output with main & decimated
	 * (for display) reconstruction
	 */
	JPEG_REF_MAIN_DISP_MAIN_AUX_EN = 0x00000130
};

/* identifies the horizontal decimation factor */
enum jpeg_horizontal_deci_factor_t {
	/* no resize */
	JPEG_HDEC_1 = 0x00000000,
	/* Advanced H/2 resize using improved 8-tap filters */
	JPEG_HDEC_ADVANCED_2 = 0x00000101,
	/* Advanced H/4 resize using improved 8-tap filters */
	JPEG_HDEC_ADVANCED_4 = 0x00000102
};

/* identifies the vertical decimation factor */
enum jpeg_vertical_deci_factor_t {
	/* no resize */
	JPEG_VDEC_1 = 0x00000000,
	/* V/2 , progressive resize */
	JPEG_VDEC_ADVANCED_2_PROG = 0x00000204,
	/* V/2 , interlaced resize */
	JPEG_VDEC_ADVANCED_2_INT = 0x000000208
};

/* status of the decoding process */
enum jpeg_decoding_error_t {
	JPEG_DECODER_NO_ERROR = 0,
	JPEG_DECODER_UNDEFINED_HUFF_TABLE = 1,
	JPEG_DECODER_UNSUPPORTED_MARKER = 2,
	JPEG_DECODER_UNABLE_ALLOCATE_MEMORY = 3,
	JPEG_DECODER_NON_SUPPORTED_SAMP_FACTORS = 4,
	JPEG_DECODER_BAD_PARAMETER = 5,
	JPEG_DECODER_DECODE_ERROR = 6,
	JPEG_DECODER_BAD_RESTART_MARKER = 7,
	JPEG_DECODER_UNSUPPORTED_COLORSPACE = 8,
	JPEG_DECODER_BAD_SOS_SPECTRAL = 9,
	JPEG_DECODER_BAD_SOS_SUCCESSIVE = 10,
	JPEG_DECODER_BAD_HEADER_LENGTH = 11,
	JPEG_DECODER_BAD_COUNT_VALUE = 12,
	JPEG_DECODER_BAD_DHT_MARKER = 13,
	JPEG_DECODER_BAD_INDEX_VALUE = 14,
	JPEG_DECODER_BAD_NUMBER_HUFFMAN_TABLES = 15,
	JPEG_DECODER_BAD_QUANT_TABLE_LENGTH = 16,
	JPEG_DECODER_BAD_NUMBER_QUANT_TABLES = 17,
	JPEG_DECODER_BAD_COMPONENT_COUNT = 18,
	JPEG_DECODER_DIVIDE_BY_ZERO_ERROR = 19,
	JPEG_DECODER_NOT_JPG_IMAGE = 20,
	JPEG_DECODER_UNSUPPORTED_ROTATION_ANGLE = 21,
	JPEG_DECODER_UNSUPPORTED_SCALING = 22,
	JPEG_DECODER_INSUFFICIENT_OUTPUTBUFFER_SIZE = 23,
	JPEG_DECODER_BAD_HWCFG_GP_VERSION_VALUE = 24,
	JPEG_DECODER_BAD_VALUE_FROM_RED = 25,
	JPEG_DECODER_BAD_SUBREGION_PARAMETERS = 26,
	JPEG_DECODER_PROGRESSIVE_DECODE_NOT_SUPPORTED = 27,
	JPEG_DECODER_ERROR_TASK_TIMEOUT = 28,
	JPEG_DECODER_ERROR_FEATURE_NOT_SUPPORTED = 29
};

/* identifies the decoding mode */
enum jpeg_decoding_mode_t {
	JPEG_NORMAL_DECODE = 0,
};

enum jpeg_additional_flags_t {
	JPEG_ADDITIONAL_FLAG_NONE = 0,
	/* request firmware to return values of the CEH registers */
	JPEG_ADDITIONAL_FLAG_CEH = 1,
	/* output storage of auxiliary reconstruction in Raster format. */
	JPEG_ADDITIONAL_FLAG_RASTER = 64,
	/* output storage of auxiliary reconstruction in 420MB format. */
	JPEG_ADDITIONAL_FLAG_420MB = 128
};

/*
 * struct jpeg_video_decode_init_params_t - initialization command parameters
 *
 * @circular_buffer_begin_addr_p:	start address of fw circular buffer
 * @circular_buffer_end_addr_p:		end address of fw circular buffer
 */
struct jpeg_video_decode_init_params_t {
	u32 circular_buffer_begin_addr_p;
	u32 circular_buffer_end_addr_p;
	u32 reserved;
};

/*
 * struct jpeg_decode_params_t - decode command parameters
 *
 * @picture_start_addr_p:	start address of jpeg picture
 * @picture_end_addr_p:		end address of jpeg picture
 * @decoded_buffer_addr:	decoded picture buffer
 * @display_buffer_addr:	display picture buffer
 * @main_aux_enable:		enable main and/or aux outputs
 * @horizontal_decimation_factor:horizontal decimation factor
 * @vertical_decimation_factor:	vertical decimation factor
 * @xvalue0:			the x(0) coordinate for subregion decoding
 * @xvalue1:			the x(1) coordinate for subregion decoding
 * @yvalue0:			the y(0) coordinate for subregion decoding
 * @yvalue1:			the y(1) coordinate for subregion decoding
 * @decoding_mode:		decoding mode
 * @additional_flags:		additional flags
 * @field_flag:			determines frame/field scan
 * @is_jpeg_image:		1 = still jpeg, 0 = motion jpeg
 */
struct jpeg_decode_params_t {
	u32 picture_start_addr_p;
	u32 picture_end_addr_p;
	struct jpeg_decoded_buffer_address_t decoded_buffer_addr;
	struct jpeg_display_buffer_address_t display_buffer_addr;
	enum jpeg_rcn_ref_disp_enable_t main_aux_enable;
	enum jpeg_horizontal_deci_factor_t horizontal_decimation_factor;
	enum jpeg_vertical_deci_factor_t vertical_decimation_factor;
	u32 xvalue0;
	u32 xvalue1;
	u32 yvalue0;
	u32 yvalue1;
	enum jpeg_decoding_mode_t decoding_mode;
	u32 additional_flags;
	u32 field_flag;
	u32 reserved;
	u32 is_jpeg_image;
};

/*
 * struct jpeg_decode_return_params_t
 *
 * status returned by firmware after decoding
 *
 * @decode_time_in_us:	decoding time in microseconds
 * @pm_cycles:		profiling information
 * @pm_dmiss:		profiling information
 * @pm_imiss:		profiling information
 * @pm_bundles:		profiling information
 * @pm_pft:		profiling information
 * @error_code:		status of the decoding process
 * @ceh_registers:	array where values of the Contrast Enhancement
 *			Histogram (CEH) registers will be stored.
 *			ceh_registers[0] correspond to register MBE_CEH_0_7,
 *			ceh_registers[1] correspond to register MBE_CEH_8_15
 *			ceh_registers[2] correspond to register MBE_CEH_16_23
 *			Note that elements of this array will be updated only
 *			if additional_flags has JPEG_ADDITIONAL_FLAG_CEH set.
 */
struct jpeg_decode_return_params_t {
	/* profiling info */
	u32 decode_time_in_us;
	u32 pm_cycles;
	u32 pm_dmiss;
	u32 pm_imiss;
	u32 pm_bundles;
	u32 pm_pft;
	enum jpeg_decoding_error_t error_code;
	u32 ceh_registers[32];
};

#endif /* DELTA_MJPEG_FW_H */