firmware/sys/storage: Re-modification of storage module

[CW-75]

Contribution description

Read and write dynamically, writing in blocks, to write and read data from mtd_storage. This will remove the old model of storage using mtd_flashpages. Here is presented an distribution using mtd_addresses , to knows where is the MTD_START_ADDR you should know the size of allowed flashpages to save data as an Non volatile memory or EEPROM. The MTD_LAST_ADDR refers to the address in the LAST_AVAILABLE_PAGEto write and read data. The addt parameter allows move dynamically in the mtd_storage. Wherever address between the MTD_START_ADDR and MTD_LAST_ADDR will be available to write and read data. The save and write data is protected to overwrite data a specific positioned data, This won´t erase the previous data to that position. So it's necessary clear or remove all flash mtd_data saved.

Testing procedure

First activate DEBUG in test/storage/main.c

make -C tests/storage flash term

Expected Output

main(): This is RIOT! (Version: 2022.07-devel-1445-g0b5f27-HEAD)
..Empty_register

Empty_register
The index already exist, can´t be updated, file: /home/eduardo-az/github-forks/m4a-firmware/firmware/sys/storage/storage.c, line 182, function: mtd_save_reg
Empty_register
Empty_register
Available index: 0x8066E00
Available index: 0x8066E20
Available index: 0x8066E40
Available index: 0x8066E60
Number of available registers: 4

1C 00 4B 45 59 30 00 4B 45 59 31 00 4B 45 59 32 
00 4B 45 59 33 00 53 74 72 69 6E 00 00 70 06 08 
14 00 4B 45 59 31 00 4B 45 59 32 00 4B 45 59 33 
00 53 74 72 69 6E 67 23 31 20 6C 00 1C 70 06 08 
01 00 4B 45 59 32 00 4B 45 59 33 00 53 74 72 69 
6E 67 23 31 20 6C 6F 61 64 65 64 00 30 70 06 08 
04 00 4B 45 59 33 00 53 74 72 69 6E 67 23 31 20 
6C 6F 61 64 65 64 3A 20 25 73 0A 00 31 70 06 08 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
...

.Reading content of an register
Reading content of an register
Reading content of an register
Reading content of an register
String#1 loaded: Everyone in the mesh!!!
String#2 loaded: Contributor: CW
Uint32_t loaded: 155556
Uint8_t loaded: 24
.
Saving data:
.

Loading data:
Load successfully
....00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
...
OK (9 tests)

Issues/PRs references

[CW-75]

Also if you wish to see more detailed, enable the debug mode in firmware/sys/storage/storage.c

[luisan00]

nice job bro! ahead!