platform/msm_shared/include/boot_device.h

/* Copyright (c) 2014,2016 The Linux Foundation. All rights reserved.

 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * 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.
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 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */

#ifndef __BOOT_DEVICE_H
#define __BOOT_DEVICE_H

#include <sys/types.h>
#include <platform.h>

#if USE_MDM_BOOT_CFG
#define BOOT_DEVICE_MASK(val)   ((val & 0x1E) >> 1)
#else
#define BOOT_DEVICE_MASK(val)   boot_device_mask(val)
#endif

/* Boot device */
#if USE_MDM_BOOT_CFG
enum boot_device
{
	BOOT_DEFAULT=0, /* NAND */
	BOOT_EMMC=3,
};
#else
enum boot_device
{
	BOOT_DEFAULT=0, /* EMMC */
	BOOT_EMMC=2,
	BOOT_UFS=4,
	BOOT_SD_ELSE_UFS=5,
};
#endif

#define MAX_NUMBER_OF_LOADED_IMAGES 32
#ifndef MAX_GPT_NAME_SIZE
#define MAX_GPT_NAME_SIZE 72
#endif

typedef struct {
	char *name;
	void *image_buffer;
	uint32_t imgsize;
} imagedata;

typedef struct bootinfo {
	int multi_slot_boot;
	bool bootinto_recovery;
	bool bootreason_alarm;
	char pname[MAX_GPT_NAME_SIZE];
	char bootable_slot[MAX_GPT_NAME_SIZE];
	imagedata images[MAX_NUMBER_OF_LOADED_IMAGES];
	uint32_t num_loaded_images;
	uint32_t boot_state;
	char *vbcmdline;
	uint32_t vbcmdline_len;
	uint32_t vbcmdline_filled_len;
	void *vb_data;
} bootinfo;

typedef enum {
	IMG_BOOT = 0,
	IMG_DTBO,
	IMG_VBMETA,
	IMG_RECOVERY,
	IMG_MAX
} img_type;

int getimage(const bootinfo *Info, void **image_buffer, uint32_t *imgsize,
                    char *imgname);

void platform_read_boot_config();
uint32_t platform_get_boot_dev();
uint32_t platform_boot_dev_isemmc();
void platform_boot_dev_cmdline(char *buf);
int get_boot_image_info(void **image_buffer, uint32_t *imgsize,char *imgname);

void *target_mmc_device();
#endif