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Platform interface to flash partition info.

This commit is contained in:
Johny Mattsson 2016-09-22 13:09:56 +10:00
parent 8e23335c0f
commit 6cd3111d79
2 changed files with 101 additions and 12 deletions
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45
components/platform/include/platform.h
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@ -2,6 +2,7 @@
#define _PLATFORM_H_
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include "sdkconfig.h"
#include "cpu_esp32.h"
@ -17,8 +18,21 @@ enum
PLATFORM_UNDERFLOW = -1
};
int platform_init (void);
#if CONFIG_NODE_DEBUG
# define NODE_DBG printf
#else
# define NODE_DBG(...) do{}while(0)
#endif
#if CONFIG_NODE_ERR
# define NODE_ERR printf
#else
# define NODE_ERR(...) do{}while(0)
#endif
int platform_init (void);
// *****************************************************************************
// UART subsection
@ -54,7 +68,6 @@ void platform_uart_send( unsigned id, uint8_t data );
int platform_uart_set_flow_control( unsigned id, int type );
// Internal flash erase/write functions
uint32_t platform_flash_get_first_free_block_address( uint32_t *psect );
@ -76,17 +89,25 @@ int platform_flash_erase_sector( uint32_t sector_id );
*/
uint32_t platform_flash_mapped2phys (uint32_t mapped_addr);
#if CONFIG_NODE_DEBUG
# define NODE_DBG printf
#else
# define NODE_DBG(...) do{}while(0)
#endif
#if CONFIG_NODE_ERR
# define NODE_ERR printf
#else
# define NODE_ERR(...) do{}while(0)
#endif
// Internal flash partitions
typedef struct {
uint8_t label[16];
uint32_t offs;
uint32_t size;
uint8_t type;
uint8_t subtype;
} platform_partition_t;
/**
* Obtain partition information for the internal flash.
* @param idx Which partition index to load info for.
* @param info Buffer to store the info in.
* @returns True if the partition info was loaded, false if not (e.g. no such
* partition idx).
*/
bool platform_partition_info (uint8_t idx, platform_partition_t *info);
// *****************************************************************************

68
components/platform/platform_partition.c Normal file
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@ -0,0 +1,68 @@
/*
* Copyright 2016 Dius Computing Pty Ltd. 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.
* - Neither the name of the copyright holders nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
*
* @author Johny Mattsson <jmattsson@dius.com.au>
*/
#include "platform.h"
#include <string.h>
#include "../../bootloader/src/main/bootloader_config.h"
#include "esp_spi_flash.h"
static inline bool possible_idx (uint8_t idx)
{
return ((idx +1) * sizeof (partition_info_t)) < SPI_FLASH_SEC_SIZE;
}
bool platform_partition_info (uint8_t idx, platform_partition_t *info)
{
if (!possible_idx (idx))
return false;
partition_info_t pi;
esp_err_t err = spi_flash_read (
PARTITION_ADD + idx * sizeof(pi), (uint32_t *)&pi, sizeof (pi));
if (err != ESP_OK)
return false;
if (pi.magic != PARTITION_MAGIC)
return false;
memcpy (info->label, pi.label, sizeof (info->label));
info->offs = pi.pos.offset;
info->size = pi.pos.size;
info->type = pi.type;
info->subtype = pi.subtype;
return true;
}