mhu/reflow-oven-control-sw
2
0
Fork 0
Code Issues 4 Pull Requests Releases 4 Wiki Activity

updater: Add function to safety memory for storing the update file name

Browse Source
This commit is contained in:
Mario Hüttel
2021-04-07 13:19:16 +02:00
parent 6e5627fde2
commit eea0826c7b
2 changed files with 90 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
stm-firmware/safety/safety-memory.c
View File

@@ -22,6 +22,7 @@
#include <helper-macros/helper-macros.h>
#include <stm-periph/crc-unit.h>
#include <stm-periph/backup-ram.h>
#include <string.h>
#ifndef SAFETY_MEMORY_STRIPOUT_DUMP
#include <base64-lib/base64-lib.h>
@@ -102,7 +103,9 @@ static enum safety_memory_state safety_memory_get_header(struct safety_memory_he
res++;
if (header->config_overrides_len > SAFETY_MEMORY_CONFIG_OVERRIDE_COUNT)
res++;
if (header->err_memory_offset < header->config_overrides_offset + header->config_overrides_len)
if (header->firmware_update_filename < header->config_overrides_offset + header->config_overrides_len)
res++;
if (header->err_memory_offset < header->firmware_update_filename + (SAFETY_MEMORY_UPDATE_FILENAME_MAXSIZE / 4))
res++;
if (header->err_memory_end >= backup_ram_get_size_in_words() || header->err_memory_end < header->err_memory_offset)
res++;
@@ -136,7 +139,8 @@ static void safety_memory_write_new_header(void)
header.boot_status_offset = wordsize_of(struct safety_memory_header);
header.config_overrides_len = SAFETY_MEMORY_CONFIG_OVERRIDE_COUNT;
header.config_overrides_offset = header.boot_status_offset + wordsize_of(struct safety_memory_boot_status);
header.err_memory_offset = header.config_overrides_offset + SAFETY_MEMORY_CONFIG_OVERRIDE_COUNT;
header.firmware_update_filename = header.config_overrides_offset + SAFETY_MEMORY_CONFIG_OVERRIDE_COUNT;
header.err_memory_offset = header.firmware_update_filename + (SAFETY_MEMORY_UPDATE_FILENAME_MAXSIZE / 4);
header.err_memory_end = header.err_memory_offset;
header.magic = SAFETY_MEMORY_MAGIC;
@@ -640,3 +644,64 @@ int safety_memory_dump_base64(char *buffer, size_t buffsize, size_t *used_size)
}
#endif /* SAFETY_MEMORY_STRIPOUT_DUMP */
int safety_memory_get_update_filename(char *filename, size_t *outlen)
{
struct safety_memory_header header;
unsigned int i;
volatile char *ptr;
size_t len = 0u;
/* If filename and outlen are both NULL, we don't do anything */
if (!filename && !outlen)
return -1;
if (safety_memory_get_header(&header) != SAFETY_MEMORY_INIT_VALID_MEMORY)
return -2000;
/* Get the filename */
ptr = (volatile char *)backup_ram_get_base_ptr();
ptr += (unsigned int)(header.firmware_update_filename * 4);
for (i = 0; i < SAFETY_MEMORY_UPDATE_FILENAME_MAXSIZE; i++) {
if (filename)
filename[i] = *ptr;
if (*ptr)
len++;
else
break;
ptr++;
}
if (outlen)
*outlen = len;
return 0;
}
int safety_memory_set_update_filename(const char *filename)
{
int ret = 0;
size_t len;
unsigned int i;
struct safety_memory_header header;
volatile char *ram_ptr;
if (safety_memory_get_header(&header) != SAFETY_MEMORY_INIT_VALID_MEMORY)
return -2000;
if (!filename)
return -1001;
len = strnlen(filename, SAFETY_MEMORY_UPDATE_FILENAME_MAXSIZE - 1);
ram_ptr = backup_ram_get_base_ptr();
ram_ptr += header.firmware_update_filename * 4;
for (i = 0u; i < len; i++) {
ram_ptr[i] = filename[i];
}
ram_ptr[i] = 0;
ret = safety_memory_gen_crc();
return ret;
}