/** @file
  Coreboot PEI module include file.

  Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

/*
 * This file is part of the libpayload project.
 *
 * Copyright (C) 2008 Advanced Micro Devices, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */


#ifndef _COREBOOT_PEI_H_INCLUDED_
#define _COREBOOT_PEI_H_INCLUDED_

#if defined(_MSC_VER)
#pragma warning( disable : 4200 )
#endif

#define DYN_CBMEM_ALIGN_SIZE (4096)

#define IMD_ENTRY_MAGIC      (~0xC0389481)
#define CBMEM_ENTRY_MAGIC    (~0xC0389479)

struct cbmem_entry {
  UINT32 magic;
  UINT32 start;
  UINT32 size;
  UINT32 id;
};

struct cbmem_root {
  UINT32 max_entries;
  UINT32 num_entries;
  UINT32 locked;
  UINT32 size;
  struct cbmem_entry entries[0];
};

struct imd_entry {
  UINT32 magic;
  UINT32 start_offset;
  UINT32 size;
  UINT32 id;
};

struct imd_root {
  UINT32 max_entries;
  UINT32 num_entries;
  UINT32 flags;
  UINT32 entry_align;
  UINT32 max_offset;
  struct imd_entry entries[0];
};

struct cbuint64 {
  UINT32 lo;
  UINT32 hi;
};

#define CB_HEADER_SIGNATURE 0x4F49424C

struct cb_header {
  UINT32 signature;
  UINT32 header_bytes;
  UINT32 header_checksum;
  UINT32 table_bytes;
  UINT32 table_checksum;
  UINT32 table_entries;
};

struct cb_record {
  UINT32 tag;
  UINT32 size;
};

#define CB_TAG_UNUSED     0x0000
#define CB_TAG_MEMORY     0x0001

struct cb_memory_range {
  struct cbuint64 start;
  struct cbuint64 size;
  UINT32 type;
};

#define CB_MEM_RAM    1
#define CB_MEM_RESERVED     2
#define CB_MEM_ACPI   3
#define CB_MEM_NVS    4
#define CB_MEM_UNUSABLE     5
#define CB_MEM_VENDOR_RSVD  6
#define CB_MEM_TABLE       16

struct cb_memory {
  UINT32 tag;
  UINT32 size;
  struct cb_memory_range map[0];
};

#define CB_TAG_MAINBOARD  0x0003

struct cb_mainboard {
  UINT32 tag;
  UINT32 size;
  UINT8 vendor_idx;
  UINT8 part_number_idx;
  UINT8 strings[0];
};
#define CB_TAG_VERSION  0x0004
#define CB_TAG_EXTRA_VERSION  0x0005
#define CB_TAG_BUILD    0x0006
#define CB_TAG_COMPILE_TIME   0x0007
#define CB_TAG_COMPILE_BY     0x0008
#define CB_TAG_COMPILE_HOST   0x0009
#define CB_TAG_COMPILE_DOMAIN 0x000a
#define CB_TAG_COMPILER       0x000b
#define CB_TAG_LINKER   0x000c
#define CB_TAG_ASSEMBLER      0x000d

struct cb_string {
  UINT32 tag;
  UINT32 size;
  UINT8 string[0];
};

#define CB_TAG_SERIAL   0x000f

struct cb_serial {
  UINT32 tag;
  UINT32 size;
#define CB_SERIAL_TYPE_IO_MAPPED     1
#define CB_SERIAL_TYPE_MEMORY_MAPPED 2
  UINT32 type;
  UINT32 baseaddr;
  UINT32 baud;
  UINT32 regwidth;

  // Crystal or input frequency to the chip containing the UART.
  // Provide the board specific details to allow the payload to
  // initialize the chip containing the UART and make independent
  // decisions as to which dividers to select and their values
  // to eventually arrive at the desired console baud-rate.
  UINT32 input_hertz;

  // UART PCI address: bus, device, function
  // 1 << 31 - Valid bit, PCI UART in use
  // Bus << 20
  // Device << 15
  // Function << 12
  UINT32 uart_pci_addr;
};

#define CB_TAG_CONSOLE       0x00010

struct cb_console {
  UINT32 tag;
  UINT32 size;
  UINT16 type;
};

#define CB_TAG_CONSOLE_SERIAL8250 0
#define CB_TAG_CONSOLE_VGA  1 // OBSOLETE
#define CB_TAG_CONSOLE_BTEXT      2 // OBSOLETE
#define CB_TAG_CONSOLE_LOGBUF     3
#define CB_TAG_CONSOLE_SROM       4 // OBSOLETE
#define CB_TAG_CONSOLE_EHCI       5

#define CB_TAG_FORWARD       0x00011

struct cb_forward {
  UINT32 tag;
  UINT32 size;
  UINT64 forward;
};

#define CB_TAG_FRAMEBUFFER      0x0012
struct cb_framebuffer {
  UINT32 tag;
  UINT32 size;

  UINT64 physical_address;
  UINT32 x_resolution;
  UINT32 y_resolution;
  UINT32 bytes_per_line;
  UINT8 bits_per_pixel;
  UINT8 red_mask_pos;
  UINT8 red_mask_size;
  UINT8 green_mask_pos;
  UINT8 green_mask_size;
  UINT8 blue_mask_pos;
  UINT8 blue_mask_size;
  UINT8 reserved_mask_pos;
  UINT8 reserved_mask_size;
};

#define CB_TAG_VDAT     0x0015
struct cb_vdat {
  UINT32 tag;
  UINT32 size;  /* size of the entire entry */
  UINT64 vdat_addr;
  UINT32 vdat_size;
};

#define CB_TAG_TIMESTAMPS       0x0016
#define CB_TAG_CBMEM_CONSOLE    0x0017
#define CB_TAG_MRC_CACHE  0x0018
struct cb_cbmem_tab {
  UINT32 tag;
  UINT32 size;
  UINT64 cbmem_tab;
};

/* Helpful macros */

#define MEM_RANGE_COUNT(_rec) \
  (((_rec)->size - sizeof(*(_rec))) / sizeof((_rec)->map[0]))

#define MEM_RANGE_PTR(_rec, _idx) \
  (void *)(((UINT8 *) (_rec)) + sizeof(*(_rec)) \
    + (sizeof((_rec)->map[0]) * (_idx)))

typedef struct cb_memory  CB_MEMORY;

#endif // _COREBOOT_PEI_H_INCLUDED_