drivers/staging/media/atomisp/pci/css_2401_system/host/isys_stream2mmio_private.h

/* 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 __ISYS_STREAM2MMIO_PRIVATE_H_INCLUDED__
#define __ISYS_STREAM2MMIO_PRIVATE_H_INCLUDED__

#include "isys_stream2mmio_public.h"
#include "device_access.h"	/* ia_css_device_load_uint32 */
#include "assert_support.h"	/* assert */
#include "print_support.h"	/* print */

#define STREAM2MMIO_COMMAND_REG_ID             0
#define STREAM2MMIO_ACKNOWLEDGE_REG_ID         1
#define STREAM2MMIO_PIX_WIDTH_ID_REG_ID        2
#define STREAM2MMIO_START_ADDR_REG_ID          3      /* master port address,NOT Byte */
#define STREAM2MMIO_END_ADDR_REG_ID            4      /* master port address,NOT Byte */
#define STREAM2MMIO_STRIDE_REG_ID              5      /* stride in master port words, increment is per packet for long sids, stride is not used for short sid's*/
#define STREAM2MMIO_NUM_ITEMS_REG_ID           6      /* number of packets for store packets cmd, number of words for store_words cmd */
#define STREAM2MMIO_BLOCK_WHEN_NO_CMD_REG_ID   7      /* if this register is 1, input will be stalled if there is no pending command for this sid */
#define STREAM2MMIO_REGS_PER_SID               8

/*****************************************************
 *
 * Native command interface (NCI).
 *
 *****************************************************/
/**
 * @brief Get the stream2mmio-controller state.
 * Refer to "stream2mmio_public.h" for details.
 */
STORAGE_CLASS_STREAM2MMIO_C void stream2mmio_get_state(
    const stream2mmio_ID_t ID,
    stream2mmio_state_t *state)
{
	stream2mmio_sid_ID_t i;

	/*
	 * Get the values of the register-set per
	 * stream2mmio-controller sids.
	 */
	for (i = STREAM2MMIO_SID0_ID; i < N_STREAM2MMIO_SID_PROCS[ID]; i++) {
		stream2mmio_get_sid_state(ID, i, &state->sid_state[i]);
	}
}

/**
 * @brief Get the state of the stream2mmio-controller sidess.
 * Refer to "stream2mmio_public.h" for details.
 */
STORAGE_CLASS_STREAM2MMIO_C void stream2mmio_get_sid_state(
    const stream2mmio_ID_t ID,
    const stream2mmio_sid_ID_t sid_id,
    stream2mmio_sid_state_t	*state)
{
	state->rcv_ack =
	    stream2mmio_reg_load(ID, sid_id, STREAM2MMIO_ACKNOWLEDGE_REG_ID);

	state->pix_width_id =
	    stream2mmio_reg_load(ID, sid_id, STREAM2MMIO_PIX_WIDTH_ID_REG_ID);

	state->start_addr =
	    stream2mmio_reg_load(ID, sid_id, STREAM2MMIO_START_ADDR_REG_ID);

	state->end_addr =
	    stream2mmio_reg_load(ID, sid_id, STREAM2MMIO_END_ADDR_REG_ID);

	state->strides =
	    stream2mmio_reg_load(ID, sid_id, STREAM2MMIO_STRIDE_REG_ID);

	state->num_items =
	    stream2mmio_reg_load(ID, sid_id, STREAM2MMIO_NUM_ITEMS_REG_ID);

	state->block_when_no_cmd =
	    stream2mmio_reg_load(ID, sid_id, STREAM2MMIO_BLOCK_WHEN_NO_CMD_REG_ID);
}

/**
 * @brief Dump the state of the stream2mmio-controller sidess.
 * Refer to "stream2mmio_public.h" for details.
 */
STORAGE_CLASS_STREAM2MMIO_C void stream2mmio_print_sid_state(
    stream2mmio_sid_state_t	*state)
{
	ia_css_print("\t \t Receive acks 0x%x\n", state->rcv_ack);
	ia_css_print("\t \t Pixel width 0x%x\n", state->pix_width_id);
	ia_css_print("\t \t Startaddr 0x%x\n", state->start_addr);
	ia_css_print("\t \t Endaddr 0x%x\n", state->end_addr);
	ia_css_print("\t \t Strides 0x%x\n", state->strides);
	ia_css_print("\t \t Num Items 0x%x\n", state->num_items);
	ia_css_print("\t \t block when no cmd 0x%x\n", state->block_when_no_cmd);
}

/**
 * @brief Dump the ibuf-controller state.
 * Refer to "stream2mmio_public.h" for details.
 */
STORAGE_CLASS_STREAM2MMIO_C void stream2mmio_dump_state(
    const stream2mmio_ID_t ID,
    stream2mmio_state_t *state)
{
	stream2mmio_sid_ID_t i;

	/*
	 * Get the values of the register-set per
	 * stream2mmio-controller sids.
	 */
	for (i = STREAM2MMIO_SID0_ID; i < N_STREAM2MMIO_SID_PROCS[ID]; i++) {
		ia_css_print("StREAM2MMIO ID %d SID %d\n", ID, i);
		stream2mmio_print_sid_state(&state->sid_state[i]);
	}
}

/* end of NCI */

/*****************************************************
 *
 * Device level interface (DLI).
 *
 *****************************************************/
/**
 * @brief Load the register value.
 * Refer to "stream2mmio_public.h" for details.
 */
STORAGE_CLASS_STREAM2MMIO_C hrt_data stream2mmio_reg_load(
    const stream2mmio_ID_t ID,
    const stream2mmio_sid_ID_t sid_id,
    const uint32_t reg_idx)
{
	u32 reg_bank_offset;

	assert(ID < N_STREAM2MMIO_ID);

	reg_bank_offset = STREAM2MMIO_REGS_PER_SID * sid_id;
	return ia_css_device_load_uint32(STREAM2MMIO_CTRL_BASE[ID] +
					 (reg_bank_offset + reg_idx) * sizeof(hrt_data));
}

/**
 * @brief Store a value to the register.
 * Refer to "stream2mmio_public.h" for details.
 */
STORAGE_CLASS_STREAM2MMIO_C void stream2mmio_reg_store(
    const stream2mmio_ID_t ID,
    const hrt_address reg,
    const hrt_data value)
{
	assert(ID < N_STREAM2MMIO_ID);
	assert(STREAM2MMIO_CTRL_BASE[ID] != (hrt_address)-1);

	ia_css_device_store_uint32(STREAM2MMIO_CTRL_BASE[ID] +
				   reg * sizeof(hrt_data), value);
}

/* end of DLI */

#endif /* __ISYS_STREAM2MMIO_PRIVATE_H_INCLUDED__ */