#ifndef ISP2401
/*
 * 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.
 */
#else
/**
Support for Intel Camera Imaging ISP subsystem.
Copyright (c) 2010 - 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.
*/
#endif

#define __INLINE_INPUT_SYSTEM__
#include "input_system.h"
#include "assert_support.h"
#include "ia_css_isys.h"
#include "ia_css_irq.h"
#include "sh_css_internal.h"

#if !defined(USE_INPUT_SYSTEM_VERSION_2401)
void ia_css_isys_rx_enable_all_interrupts(mipi_port_ID_t port)
{
	hrt_data bits = receiver_port_reg_load(RX0_ID,
				port,
				_HRT_CSS_RECEIVER_IRQ_ENABLE_REG_IDX);

	bits |= (1U << _HRT_CSS_RECEIVER_IRQ_OVERRUN_BIT) |
#if defined(HAS_RX_VERSION_2)
	    (1U << _HRT_CSS_RECEIVER_IRQ_INIT_TIMEOUT_BIT) |
#endif
	    (1U << _HRT_CSS_RECEIVER_IRQ_SLEEP_MODE_ENTRY_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_SLEEP_MODE_EXIT_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_ERR_SOT_HS_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_ERR_SOT_SYNC_HS_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_ERR_CONTROL_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_ERR_ECC_DOUBLE_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_ERR_ECC_CORRECTED_BIT) |
	    /*(1U << _HRT_CSS_RECEIVER_IRQ_ERR_ECC_NO_CORRECTION_BIT) | */
	    (1U << _HRT_CSS_RECEIVER_IRQ_ERR_CRC_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_ERR_ID_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_ERR_FRAME_SYNC_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_ERR_FRAME_DATA_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_DATA_TIMEOUT_BIT) |
	    (1U << _HRT_CSS_RECEIVER_IRQ_ERR_ESCAPE_BIT);
	/*(1U << _HRT_CSS_RECEIVER_IRQ_ERR_LINE_SYNC_BIT); */

	receiver_port_reg_store(RX0_ID,
				port,
				_HRT_CSS_RECEIVER_IRQ_ENABLE_REG_IDX, bits);

	/*
	 * The CSI is nested into the Iunit IRQ's
	 */
	ia_css_irq_enable(IA_CSS_IRQ_INFO_CSS_RECEIVER_ERROR, true);

	return;
}

/* This function converts between the enum used on the CSS API and the
 * internal DLI enum type.
 * We do not use an array for this since we cannot use named array
 * initializers in Windows. Without that there is no easy way to guarantee
 * that the array values would be in the correct order.
 * */
mipi_port_ID_t ia_css_isys_port_to_mipi_port(enum ia_css_csi2_port api_port)
{
	/* In this module the validity of the inptu variable should
	 * have been checked already, so we do not check for erroneous
	 * values. */
	mipi_port_ID_t port = MIPI_PORT0_ID;

	if (api_port == IA_CSS_CSI2_PORT1)
		port = MIPI_PORT1_ID;
	else if (api_port == IA_CSS_CSI2_PORT2)
		port = MIPI_PORT2_ID;

	return port;
}

unsigned int ia_css_isys_rx_get_interrupt_reg(mipi_port_ID_t port)
{
	return receiver_port_reg_load(RX0_ID,
				      port,
				      _HRT_CSS_RECEIVER_IRQ_STATUS_REG_IDX);
}

void ia_css_rx_get_irq_info(unsigned int *irq_infos)
{
	ia_css_rx_port_get_irq_info(IA_CSS_CSI2_PORT1, irq_infos);
}

void ia_css_rx_port_get_irq_info(enum ia_css_csi2_port api_port,
				 unsigned int *irq_infos)
{
	mipi_port_ID_t port = ia_css_isys_port_to_mipi_port(api_port);
	ia_css_isys_rx_get_irq_info(port, irq_infos);
}

void ia_css_isys_rx_get_irq_info(mipi_port_ID_t port,
				 unsigned int *irq_infos)
{
	unsigned int bits;

	assert(irq_infos != NULL);
	bits = ia_css_isys_rx_get_interrupt_reg(port);
	*irq_infos = ia_css_isys_rx_translate_irq_infos(bits);
}

/* Translate register bits to CSS API enum mask */
unsigned int ia_css_isys_rx_translate_irq_infos(unsigned int bits)
{
	unsigned int infos = 0;

	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_OVERRUN_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_BUFFER_OVERRUN;
#if defined(HAS_RX_VERSION_2)
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_INIT_TIMEOUT_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_INIT_TIMEOUT;
#endif
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_SLEEP_MODE_ENTRY_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ENTER_SLEEP_MODE;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_SLEEP_MODE_EXIT_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_EXIT_SLEEP_MODE;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_ECC_CORRECTED_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ECC_CORRECTED;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_SOT_HS_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_SOT;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_SOT_SYNC_HS_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_SOT_SYNC;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_CONTROL_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_CONTROL;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_ECC_DOUBLE_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_ECC_DOUBLE;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_CRC_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_CRC;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_ID_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ID;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_FRAME_SYNC_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_FRAME_SYNC;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_FRAME_DATA_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_FRAME_DATA;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_DATA_TIMEOUT_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_DATA_TIMEOUT;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_ESCAPE_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ESC;
	if (bits & (1U << _HRT_CSS_RECEIVER_IRQ_ERR_LINE_SYNC_BIT))
		infos |= IA_CSS_RX_IRQ_INFO_ERR_LINE_SYNC;

	return infos;
}

void ia_css_rx_clear_irq_info(unsigned int irq_infos)
{
	ia_css_rx_port_clear_irq_info(IA_CSS_CSI2_PORT1, irq_infos);
}

void ia_css_rx_port_clear_irq_info(enum ia_css_csi2_port api_port, unsigned int irq_infos)
{
	mipi_port_ID_t port = ia_css_isys_port_to_mipi_port(api_port);
	ia_css_isys_rx_clear_irq_info(port, irq_infos);
}

void ia_css_isys_rx_clear_irq_info(mipi_port_ID_t port, unsigned int irq_infos)
{
	hrt_data bits = receiver_port_reg_load(RX0_ID,
				port,
				_HRT_CSS_RECEIVER_IRQ_ENABLE_REG_IDX);

	/* MW: Why do we remap the receiver bitmap */
	if (irq_infos & IA_CSS_RX_IRQ_INFO_BUFFER_OVERRUN)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_OVERRUN_BIT;
#if defined(HAS_RX_VERSION_2)
	if (irq_infos & IA_CSS_RX_IRQ_INFO_INIT_TIMEOUT)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_INIT_TIMEOUT_BIT;
#endif
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ENTER_SLEEP_MODE)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_SLEEP_MODE_ENTRY_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_EXIT_SLEEP_MODE)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_SLEEP_MODE_EXIT_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ECC_CORRECTED)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_ECC_CORRECTED_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_SOT)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_SOT_HS_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_SOT_SYNC)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_SOT_SYNC_HS_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_CONTROL)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_CONTROL_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_ECC_DOUBLE)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_ECC_DOUBLE_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_CRC)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_CRC_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ID)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_ID_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_FRAME_SYNC)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_FRAME_SYNC_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_FRAME_DATA)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_FRAME_DATA_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_DATA_TIMEOUT)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_DATA_TIMEOUT_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ESC)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_ESCAPE_BIT;
	if (irq_infos & IA_CSS_RX_IRQ_INFO_ERR_LINE_SYNC)
		bits |= 1U << _HRT_CSS_RECEIVER_IRQ_ERR_LINE_SYNC_BIT;

	receiver_port_reg_store(RX0_ID,
				port,
				_HRT_CSS_RECEIVER_IRQ_ENABLE_REG_IDX, bits);

	return;
}
#endif /* #if !defined(USE_INPUT_SYSTEM_VERSION_2401) */

enum ia_css_err ia_css_isys_convert_stream_format_to_mipi_format(
		enum ia_css_stream_format input_format,
		mipi_predictor_t compression,
		unsigned int *fmt_type)
{
	assert(fmt_type != NULL);
	/*
	 * Custom (user defined) modes. Used for compressed
	 * MIPI transfers
	 *
	 * Checkpatch thinks the indent before "if" is suspect
	 * I think the only suspect part is the missing "else"
	 * because of the return.
	 */
	if (compression != MIPI_PREDICTOR_NONE) {
		switch (input_format) {
		case IA_CSS_STREAM_FORMAT_RAW_6:
			*fmt_type = 6;
			break;
		case IA_CSS_STREAM_FORMAT_RAW_7:
			*fmt_type = 7;
			break;
		case IA_CSS_STREAM_FORMAT_RAW_8:
			*fmt_type = 8;
			break;
		case IA_CSS_STREAM_FORMAT_RAW_10:
			*fmt_type = 10;
			break;
		case IA_CSS_STREAM_FORMAT_RAW_12:
			*fmt_type = 12;
			break;
		case IA_CSS_STREAM_FORMAT_RAW_14:
			*fmt_type = 14;
			break;
		case IA_CSS_STREAM_FORMAT_RAW_16:
			*fmt_type = 16;
			break;
		default:
			return IA_CSS_ERR_INTERNAL_ERROR;
		}
		return IA_CSS_SUCCESS;
	}
	/*
	 * This mapping comes from the Arasan CSS function spec
	 * (CSS_func_spec1.08_ahb_sep29_08.pdf).
	 *
	 * MW: For some reason the mapping is not 1-to-1
	 */
	switch (input_format) {
	case IA_CSS_STREAM_FORMAT_RGB_888:
		*fmt_type = MIPI_FORMAT_RGB888;
		break;
	case IA_CSS_STREAM_FORMAT_RGB_555:
		*fmt_type = MIPI_FORMAT_RGB555;
		break;
	case IA_CSS_STREAM_FORMAT_RGB_444:
		*fmt_type = MIPI_FORMAT_RGB444;
		break;
	case IA_CSS_STREAM_FORMAT_RGB_565:
		*fmt_type = MIPI_FORMAT_RGB565;
		break;
	case IA_CSS_STREAM_FORMAT_RGB_666:
		*fmt_type = MIPI_FORMAT_RGB666;
		break;
	case IA_CSS_STREAM_FORMAT_RAW_8:
		*fmt_type = MIPI_FORMAT_RAW8;
		break;
	case IA_CSS_STREAM_FORMAT_RAW_10:
		*fmt_type = MIPI_FORMAT_RAW10;
		break;
	case IA_CSS_STREAM_FORMAT_RAW_6:
		*fmt_type = MIPI_FORMAT_RAW6;
		break;
	case IA_CSS_STREAM_FORMAT_RAW_7:
		*fmt_type = MIPI_FORMAT_RAW7;
		break;
	case IA_CSS_STREAM_FORMAT_RAW_12:
		*fmt_type = MIPI_FORMAT_RAW12;
		break;
	case IA_CSS_STREAM_FORMAT_RAW_14:
		*fmt_type = MIPI_FORMAT_RAW14;
		break;
	case IA_CSS_STREAM_FORMAT_YUV420_8:
		*fmt_type = MIPI_FORMAT_YUV420_8;
		break;
	case IA_CSS_STREAM_FORMAT_YUV420_10:
		*fmt_type = MIPI_FORMAT_YUV420_10;
		break;
	case IA_CSS_STREAM_FORMAT_YUV422_8:
		*fmt_type = MIPI_FORMAT_YUV422_8;
		break;
	case IA_CSS_STREAM_FORMAT_YUV422_10:
		*fmt_type = MIPI_FORMAT_YUV422_10;
		break;
	case IA_CSS_STREAM_FORMAT_YUV420_8_LEGACY:
		*fmt_type = MIPI_FORMAT_YUV420_8_LEGACY;
		break;
	case IA_CSS_STREAM_FORMAT_EMBEDDED:
		*fmt_type = MIPI_FORMAT_EMBEDDED;
		break;
#ifndef USE_INPUT_SYSTEM_VERSION_2401
	case IA_CSS_STREAM_FORMAT_RAW_16:
		/* This is not specified by Arasan, so we use
		 * 17 for now.
		 */
		*fmt_type = MIPI_FORMAT_RAW16;
		break;
	case IA_CSS_STREAM_FORMAT_BINARY_8:
		*fmt_type = MIPI_FORMAT_BINARY_8;
		break;
#else
	case IA_CSS_STREAM_FORMAT_USER_DEF1:
		*fmt_type = MIPI_FORMAT_CUSTOM0;
		break;
	case IA_CSS_STREAM_FORMAT_USER_DEF2:
		*fmt_type = MIPI_FORMAT_CUSTOM1;
		break;
	case IA_CSS_STREAM_FORMAT_USER_DEF3:
		*fmt_type = MIPI_FORMAT_CUSTOM2;
		break;
	case IA_CSS_STREAM_FORMAT_USER_DEF4:
		*fmt_type = MIPI_FORMAT_CUSTOM3;
		break;
	case IA_CSS_STREAM_FORMAT_USER_DEF5:
		*fmt_type = MIPI_FORMAT_CUSTOM4;
		break;
	case IA_CSS_STREAM_FORMAT_USER_DEF6:
		*fmt_type = MIPI_FORMAT_CUSTOM5;
		break;
	case IA_CSS_STREAM_FORMAT_USER_DEF7:
		*fmt_type = MIPI_FORMAT_CUSTOM6;
		break;
	case IA_CSS_STREAM_FORMAT_USER_DEF8:
		*fmt_type = MIPI_FORMAT_CUSTOM7;
		break;
#endif

	case IA_CSS_STREAM_FORMAT_YUV420_16:
	case IA_CSS_STREAM_FORMAT_YUV422_16:
	default:
		return IA_CSS_ERR_INTERNAL_ERROR;
	}
	return IA_CSS_SUCCESS;
}
#if defined(USE_INPUT_SYSTEM_VERSION_2401)
static mipi_predictor_t sh_css_csi2_compression_type_2_mipi_predictor(enum ia_css_csi2_compression_type type)
{
	mipi_predictor_t predictor = MIPI_PREDICTOR_NONE;

	switch (type) {
	case IA_CSS_CSI2_COMPRESSION_TYPE_1:
		predictor = MIPI_PREDICTOR_TYPE1-1;
		break;
	case IA_CSS_CSI2_COMPRESSION_TYPE_2:
		predictor = MIPI_PREDICTOR_TYPE2-1;
	default:
		break;
	}
	return predictor;
}
enum ia_css_err ia_css_isys_convert_compressed_format(
		struct ia_css_csi2_compression *comp,
		struct input_system_cfg_s *cfg)
{
	enum ia_css_err err = IA_CSS_SUCCESS;
	assert(comp != NULL);
	assert(cfg != NULL);

	if (comp->type != IA_CSS_CSI2_COMPRESSION_TYPE_NONE) {
		/* compression register bit slicing
		4 bit for each user defined data type
			3 bit indicate compression scheme
				000 No compression
				001 10-6-10
				010 10-7-10
				011 10-8-10
				100 12-6-12
				101 12-6-12
				100 12-7-12
				110 12-8-12
			1 bit indicate predictor
		*/
		if (comp->uncompressed_bits_per_pixel == UNCOMPRESSED_BITS_PER_PIXEL_10) {
			switch (comp->compressed_bits_per_pixel) {
			case COMPRESSED_BITS_PER_PIXEL_6:
				cfg->csi_port_attr.comp_scheme = MIPI_COMPRESSOR_10_6_10;
				break;
			case COMPRESSED_BITS_PER_PIXEL_7:
				cfg->csi_port_attr.comp_scheme = MIPI_COMPRESSOR_10_7_10;
				break;
			case COMPRESSED_BITS_PER_PIXEL_8:
				cfg->csi_port_attr.comp_scheme = MIPI_COMPRESSOR_10_8_10;
				break;
			default:
				err = IA_CSS_ERR_INVALID_ARGUMENTS;
			}
		} else if (comp->uncompressed_bits_per_pixel == UNCOMPRESSED_BITS_PER_PIXEL_12) {
			switch (comp->compressed_bits_per_pixel) {
			case COMPRESSED_BITS_PER_PIXEL_6:
				cfg->csi_port_attr.comp_scheme = MIPI_COMPRESSOR_12_6_12;
				break;
			case COMPRESSED_BITS_PER_PIXEL_7:
				cfg->csi_port_attr.comp_scheme = MIPI_COMPRESSOR_12_7_12;
				break;
			case COMPRESSED_BITS_PER_PIXEL_8:
				cfg->csi_port_attr.comp_scheme = MIPI_COMPRESSOR_12_8_12;
				break;
			default:
				err = IA_CSS_ERR_INVALID_ARGUMENTS;
			}
		} else
			err = IA_CSS_ERR_INVALID_ARGUMENTS;
		cfg->csi_port_attr.comp_predictor = sh_css_csi2_compression_type_2_mipi_predictor(comp->type);
		cfg->csi_port_attr.comp_enable = true;
	} else /* No compression */
		cfg->csi_port_attr.comp_enable = false;
	return err;
}

unsigned int ia_css_csi2_calculate_input_system_alignment(
	enum ia_css_stream_format fmt_type)
{
	unsigned int memory_alignment_in_bytes = HIVE_ISP_DDR_WORD_BYTES;

	switch (fmt_type) {
	case IA_CSS_STREAM_FORMAT_RAW_6:
	case IA_CSS_STREAM_FORMAT_RAW_7:
	case IA_CSS_STREAM_FORMAT_RAW_8:
	case IA_CSS_STREAM_FORMAT_RAW_10:
	case IA_CSS_STREAM_FORMAT_RAW_12:
	case IA_CSS_STREAM_FORMAT_RAW_14:
		memory_alignment_in_bytes = 2 * ISP_VEC_NELEMS;
		break;
	case IA_CSS_STREAM_FORMAT_YUV420_8:
	case IA_CSS_STREAM_FORMAT_YUV422_8:
	case IA_CSS_STREAM_FORMAT_USER_DEF1:
	case IA_CSS_STREAM_FORMAT_USER_DEF2:
	case IA_CSS_STREAM_FORMAT_USER_DEF3:
	case IA_CSS_STREAM_FORMAT_USER_DEF4:
	case IA_CSS_STREAM_FORMAT_USER_DEF5:
	case IA_CSS_STREAM_FORMAT_USER_DEF6:
	case IA_CSS_STREAM_FORMAT_USER_DEF7:
	case IA_CSS_STREAM_FORMAT_USER_DEF8:
		/* Planar YUV formats need to have all planes aligned, this means
		 * double the alignment for the Y plane if the horizontal decimation is 2. */
		memory_alignment_in_bytes = 2 * HIVE_ISP_DDR_WORD_BYTES;
		break;
	case IA_CSS_STREAM_FORMAT_EMBEDDED:
	default:
		memory_alignment_in_bytes = HIVE_ISP_DDR_WORD_BYTES;
		break;
	}
	return memory_alignment_in_bytes;
}

#endif

#if !defined(USE_INPUT_SYSTEM_VERSION_2401)
void ia_css_isys_rx_configure(const rx_cfg_t *config,
			      const enum ia_css_input_mode input_mode)
{
#if defined(HAS_RX_VERSION_2)
	bool port_enabled[N_MIPI_PORT_ID];
	bool any_port_enabled = false;
	mipi_port_ID_t port;

	if ((config == NULL)
		|| (config->mode >= N_RX_MODE)
		|| (config->port >= N_MIPI_PORT_ID)) {
		assert(0);
		return;
	}
	for (port = (mipi_port_ID_t) 0; port < N_MIPI_PORT_ID; port++) {
		if (is_receiver_port_enabled(RX0_ID, port))
			any_port_enabled = true;
	}
	/* AM: Check whether this is a problem with multiple
	 * streams. MS: This is the case. */

	port = config->port;
	receiver_port_enable(RX0_ID, port, false);

	port = config->port;

	/* AM: Check whether this is a problem with multiple streams. */
	if (MIPI_PORT_LANES[config->mode][port] != MIPI_0LANE_CFG) {
		receiver_port_reg_store(RX0_ID, port,
				_HRT_CSS_RECEIVER_FUNC_PROG_REG_IDX,
				config->timeout);
		receiver_port_reg_store(RX0_ID, port,
				_HRT_CSS_RECEIVER_2400_INIT_COUNT_REG_IDX,
				config->initcount);
		receiver_port_reg_store(RX0_ID, port,
				_HRT_CSS_RECEIVER_2400_SYNC_COUNT_REG_IDX,
				config->synccount);
		receiver_port_reg_store(RX0_ID, port,
				_HRT_CSS_RECEIVER_2400_RX_COUNT_REG_IDX,
				config->rxcount);

		port_enabled[port] = true;

		if (input_mode != IA_CSS_INPUT_MODE_BUFFERED_SENSOR) {

			/* MW: A bit of a hack, straight wiring of the capture
			 * units,assuming they are linearly enumerated. */
			input_system_sub_system_reg_store(INPUT_SYSTEM0_ID,
					GPREGS_UNIT0_ID,
					HIVE_ISYS_GPREG_MULTICAST_A_IDX
						+ (unsigned int)port,
					INPUT_SYSTEM_CSI_BACKEND);
			/* MW: Like the integration test example we overwite,
			 * the GPREG_MUX register */
			input_system_sub_system_reg_store(INPUT_SYSTEM0_ID,
					GPREGS_UNIT0_ID,
					HIVE_ISYS_GPREG_MUX_IDX,
					(input_system_multiplex_t) port);
		} else {
			/*
			 * AM: A bit of a hack, wiring the input system.
			 */
			input_system_sub_system_reg_store(INPUT_SYSTEM0_ID,
					GPREGS_UNIT0_ID,
					HIVE_ISYS_GPREG_MULTICAST_A_IDX
						+ (unsigned int)port,
					INPUT_SYSTEM_INPUT_BUFFER);
			input_system_sub_system_reg_store(INPUT_SYSTEM0_ID,
					GPREGS_UNIT0_ID,
					HIVE_ISYS_GPREG_MUX_IDX,
					INPUT_SYSTEM_ACQUISITION_UNIT);
		}
	}
	/*
	 * The 2ppc is shared for all ports, so we cannot
	 * disable->configure->enable individual ports
	 */
	/* AM: Check whether this is a problem with multiple streams. */
	/* MS: 2ppc should be a property per binary and should be
	 * enabled/disabled per binary.
	 * Currently it is implemented as a system wide setting due
	 * to effort and risks. */
	if (!any_port_enabled) {
		receiver_reg_store(RX0_ID,
				   _HRT_CSS_RECEIVER_TWO_PIXEL_EN_REG_IDX,
				   config->is_two_ppc);
		receiver_reg_store(RX0_ID, _HRT_CSS_RECEIVER_BE_TWO_PPC_REG_IDX,
				   config->is_two_ppc);
	}
	receiver_port_enable(RX0_ID, port, true);
	/* TODO: JB: need to add the beneath used define to mizuchi */
	/* sh_css_sw_hive_isp_css_2400_system_20121224_0125\css
	 *                      \hrt\input_system_defs.h
	 * #define INPUT_SYSTEM_CSI_RECEIVER_SELECT_BACKENG 0X207
	 */
	/* TODO: need better name for define
	 * input_system_reg_store(INPUT_SYSTEM0_ID,
	 *                INPUT_SYSTEM_CSI_RECEIVER_SELECT_BACKENG, 1);
	 */
	input_system_reg_store(INPUT_SYSTEM0_ID, 0x207, 1);
#else
#error "rx.c: RX version must be one of {RX_VERSION_2}"
#endif

	return;
}

void ia_css_isys_rx_disable(void)
{
	mipi_port_ID_t port;
	for (port = (mipi_port_ID_t) 0; port < N_MIPI_PORT_ID; port++) {
		receiver_port_reg_store(RX0_ID, port,
					_HRT_CSS_RECEIVER_DEVICE_READY_REG_IDX,
					false);
	}
	return;
}
#endif /* if !defined(USE_INPUT_SYSTEM_VERSION_2401) */