Commit Graph

473 Commits

Author SHA1 Message Date
Ivan Grokhotkov
96db25c861 Merge branch 'feature/nvs_encryption_s2' into 'master'
NVS: using esp_partition API

Closes IDF-1340 and IDF-858

See merge request espressif/esp-idf!8683
2020-09-16 02:12:54 +08:00
Jakob Hasse
aca9ec28b3 NVS: using esp_partition API
* partition api changed from spi_flash* API to
  esp_partition* API and is abstracted as a C++
  interface.
* The old nvs encryption is still possible
* changed default unit test app partition table
* Partitions coming from esp_partition API are
  checked for generic flash encryption. If yes,
  an error is returned since generic flash
  encryption isn't compatible with nvs
  encryption
* esp32, esp32s2 tests don't require nvs_flash
  but mbedtls now

Closes IDF-1340
Closes IDF-858
2020-09-14 10:34:34 +08:00
Marius Vikhammer
b2f390df01 hal: update link to HAL readme.md
The HAL readme was moved during refactoring, but links were not updated.
2020-09-11 15:48:08 +08:00
Michael (XIAO Xufeng)
37e3f20252 Merge branch 'bugfix/esp_flash_write_temp_buffer_lifetime' into 'master'
esp_flash: fix write issue using buffer on stack out of lifetime

See merge request espressif/esp-idf!9932
2020-09-10 17:49:04 +08:00
Ivan Grokhotkov
b6467257b9 Merge branch 'feature/cmock_component' into 'master'
cmock as component replacing unity

See merge request espressif/esp-idf!9859
2020-09-10 16:06:20 +08:00
Michael (XIAO Xufeng)
233b4720b4 esp_flash: fix write issue using buffer on stack out of lifetime 2020-09-10 03:17:39 +00:00
Michael (XIAO Xufeng)
9e7eda9770 Merge branch 'feat/spi_flash_override_size' into 'master'
spi_flash: add config option to override flash size in bootloader header

See merge request espressif/esp-idf!10131
2020-09-03 02:57:31 +08:00
Jakob Hasse
20c068ef3b cmock: added cmock as component
* changing dependencies from unity->cmock
* added component.mk and Makefile.projbuild
* ignore test dir in gen_esp_err_to_name.py
* added some brief introduction of CMock in IDF
2020-09-02 16:38:37 +08:00
Michael (XIAO Xufeng)
c15c6a2803 Merge branch 'fix/esp_flash_delay_type' into 'master'
esp_flash: fix the data type of delay_us

See merge request espressif/esp-idf!10115
2020-09-02 01:21:12 +08:00
Michael (XIAO Xufeng)
37423083bb spi_flash: add config option to override flash size in bootloader header
Sometimes the flash size read from bootloader is not correct. This may
forbid SPI Flash driver from reading the the area larger than the size
in bootloader header.

When the new config option is enabled, the latest configured
ESPTOOLPY_FLAHSIZE in the app header will be used to override the value
read from bootloader header.
2020-09-02 00:35:53 +08:00
Michael (XIAO Xufeng)
5425ef4ee4 hal: extract hal component from soc component 2020-09-01 13:25:32 +08:00
Michael (XIAO Xufeng)
2d440e408a esp_flash: fix the data type of delay_us
unsigned can be 16-bit on some architecture, which doesn't meet the
requirements of delaying for several hundreds of us.
2020-08-31 18:10:32 +00:00
Ivan Grokhotkov
75a874d4fd spi_flash: make {get,release}_temp_buffer OS functions optional
Fixes a crash when calling a NULL release_temp_buffer pointer throug
esp_flash_noos_functions, when doing a core dump.
2020-07-29 12:42:26 +02:00
Michael (XIAO Xufeng)
6434c1e2bd Merge branch 'feat/esp_flash_enable_s2_ut' into 'master'
esp_flash: fix several issues and enable unit test for ESP32-S2

Closes IDF-1409

See merge request espressif/esp-idf!8259
2020-07-28 18:15:41 +08:00
morris
2917651478 esp_rom: extract common ets apis into esp_rom_sys.h 2020-07-27 15:27:01 +08:00
Michael (XIAO Xufeng)
8165025320 spi test: replace several SPIRAM_SUPPORT with SPIRAM configs
The previous config option is renamed to ESP32_SPIRAM_SUPPORT, which
cannot cover the ESP32-S2 case.
2020-07-27 12:27:05 +08:00
Michael (XIAO Xufeng)
c7b1436485 esp_flash: fix cs_initialize issue on esp32s2 2020-07-27 12:27:05 +08:00
Michael (XIAO Xufeng)
0a65911df2 esp_flash: enable unit tests for ESP32-S2 external flash 2020-07-27 12:27:04 +08:00
KonstantinKondrashov
d95c89a1eb bootloader_support: Fix bootloader_common_get_sha256_of_partition, can handle a long image
Closes: IDFGH-3594
2020-07-20 10:55:41 +00:00
Angus Gratton
e04eacbe3f Merge branch 'refactor/common_rom_efuse_apis' into 'master'
esp_rom: extract common efuse apis into esp_rom_efuse.h

See merge request espressif/esp-idf!9267
2020-07-17 15:57:28 +08:00
morris
458b14a8ea esp_rom: extract common efuse apis into esp_rom_efuse.h 2020-07-15 10:40:50 +08:00
Michael (XIAO Xufeng)
c796bd5e63 esp_flash: refactor to make host driver function a const table
This is also part of ESP32-S3 ROM changes
2020-07-13 03:10:00 +08:00
Michael (XIAO Xufeng)
f99ba33920 esp_flash: improve unit test to detect over boundary issue 2020-07-12 02:09:46 +08:00
Michael (XIAO Xufeng)
a9c8895bb2 esp_flash: refactor to be compatible with the latest ROM
Including:
1. Change the write bytes/read bytes parameter in the host driver into slicers to meet the requirements of complicated cases.
2. Refactor the esp_flash_api code a bit so that we can use the code in the ROM laster
3. Provide get_temp_buffer and release_temp_buffer in the os_functions when the buffer passed by application cannot be used directly.
4. Make timeout of operations configurable in the chip_driver.
5. Make dummy number configurable.
2020-07-12 02:09:45 +08:00
morris
a4d0033c03 esp_rom: extract common GPIO apis into esp_rom_gpio.h 2020-07-07 11:40:19 +08:00
Angus Gratton
d02edc2bd1 Merge branch 'bugfix/esp32_encrypted_flash_write' into 'master'
spi_flash: esp32: fix regression in encrypted flash write

See merge request espressif/esp-idf!9286
2020-06-26 14:35:43 +08:00
Mahavir Jain
5b9b5d9636 spi_flash: esp32: fix regression in encrypted flash write
In commit 309376f51a, it seems like regression
was added to use ROM level API for disabling flash write protection. This
started random firmware crashes (on specific modules) with exception
`IllegalInstruction` during encrypted flash writes.

Fix here removes relevant ROM API call, since disabling flash write protection
is already ensured by caller of this API.

Closes https://github.com/espressif/esp-idf/issues/5467
2020-06-23 16:08:04 +05:30
Michael (XIAO Xufeng)
479269a52b Merge branch 'feature/configure_flash_write_chunk_size' into 'master'
spi_flash: add configuration option to select flash write chunk size

See merge request espressif/esp-idf!9067
2020-06-22 14:50:42 +08:00
Mahavir Jain
05da91f0db spi_flash: add configuration option to select flash write chunk size
Flash write operation is broken down into smaller chunk writes. Size
of this chunk was previously set to 8K but that in-turn meant cache and
non-IRAM resident interrupts could stay disabled upto ~24msec for 8K flash
write operation. If chunk size is brought down to 256 (typical flash page size)
then it brings down cache and non-IRAM interrupts disable duration to ~1msec.

Fix here keeps defaults same but provides configuration option to tweak the
setting based on application requirement.
2020-06-05 14:45:41 +05:30
Ivan Grokhotkov
03bb2774d9 spi_flash: don't call vTaskDelay in non-os context
Fixes regression in core dump, when a crash happens in interrupt
context.
2020-06-02 15:42:24 +02:00
jiangguangming
92eae20bca add new config items for spiflash ci unit-test 2020-05-26 15:23:38 +08:00
jiangguangming
b25ccde45f flash mmap: fix bug for cache2phys and phys2cache on esp32s2 2020-05-26 15:14:23 +08:00
Angus Gratton
084e170a8f Merge branch 'refactor/esp_ipc' into 'master'
Split esp_ipc to a seaparate component

Closes IDF-1295

See merge request espressif/esp-idf!8520
2020-05-25 15:03:04 +08:00
Darian Leung
11d96b39d0 esp_ipc: Move to new component
This commit moves esp_ipc into a separate component.
2020-05-18 16:51:45 +08:00
Michael (XIAO Xufeng)
3f778a92da spi_flash: add unit test for read/write performance 2020-05-17 22:06:03 +08:00
Michael (XIAO Xufeng)
651eb1a694 esp_flash: fix the write performance regression
Also changed internal delay unit into microsecond.
2020-05-17 22:06:02 +08:00
Michael (XIAO Xufeng)
dae3196157 esp_flash: fix issue that cannot add flash on SPI1 CS1 when SPI_FLASH_SHARE_SPI1_BUS is disabled 2020-05-17 22:06:00 +08:00
KonstantinKondrashov
bc50bd2806 spi_flash(new driver): Add a Kconfig option - Bypass a block erase and always do sector erase
Closes: IDF-1561
2020-04-30 13:58:13 +08:00
KonstantinKondrashov
304f67e42a spi_flash(LEGACY_IMPL): Add a Kconfig option - Bypass a block erase and always do sector erase
Closes: IDF-1561
2020-04-30 13:58:13 +08:00
KonstantinKondrashov
0f6fe0c8e9 spi_flash: Add into sim/stubs the esp_timer 2020-04-30 13:58:13 +08:00
KonstantinKondrashov
ae89f98d59 spi_flash(new driver): Add vTaskDelay while a long erasing 2020-04-30 13:58:13 +08:00
KonstantinKondrashov
3cb655eaab spi_flash(LEGACY_IMPL): Add vTaskDelay while a long erasing
Added Kconfig options to enable yield operation during flash erase

Closes: https://github.com/espressif/esp-idf/issues/2083
Closes: https://github.com/espressif/esp-idf/issues/4916
Closes: IDFGH-261
2020-04-30 13:58:13 +08:00
Michael (XIAO Xufeng)
9d98111652 Merge branch 'bugfix/spi_bus_lock_missing_semphrstatic' into 'master'
spi: fix config break and reduce overhead of the bus lock on SPI1

Closes IDFGH-3017

See merge request espressif/esp-idf!8221
2020-04-27 12:57:19 +08:00
Angus Gratton
bb0a95b17c spi_flash s2: Fix encrypted writes when legacy implementation disabled
ROM function didn't use correct Addr bitlen if legacy was disabled on ESP32-S2
2020-04-24 12:43:47 -03:00
Angus Gratton
dbdce93d23 spi_flash: Use per-chip flash_ops files for legacy API
Looks like when ESP32-S2 Beta support was merged, the separate files
were dropped by accident.
2020-04-24 12:43:47 -03:00
Michael (XIAO Xufeng)
7ec4d64b80 spi: Update documents about the bus lock and how to use SPI Master on SPI1 bus 2020-04-23 12:27:25 +08:00
michael
fdf983e0c4 spi: fix config break and reduce overhead of the bus lock on SPI1
The SPI bus lock on SPI1 introduces two side effects:

1. The device lock for the main flash requires the
`CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION` to be selected, however this
option is disabled by default in earlier IDF versions. Some developers
may find their project cannot be built by their old sdkconfig files.

2. Usually we don't need the lock on the SPI1 bus, due to it's
restrictions. However the overhead still exists in this case, the IRAM
cost for static version of semaphore functions, and the time cost when
getting and releasing the lock.

This commit:

1. Add a CONFIG_SPI_FLASH_BYPASS_MAIN_LOCK option, which will forbid the
space cost, as well as the initialization of the main bus lock.

2. When the option is not selected, the bus lock is used, the
`CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION` will be selected explicitly.

3. Revert default value of `CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION`
to `n`.

introduced in 49a48644e4.

Closes https://github.com/espressif/esp-idf/issues/5046
2020-04-22 16:06:13 +08:00
Michael (XIAO Xufeng)
9d9d22c920 esp_flash: deprecate the cs_id member, which is no longer used.
We used to manually specify the CS id. However after the SPI bus lock is
introduced, the lock is responsible to assign the CS lines and provide
the CS id. The esp_flash driver now depends on the ID assigned by the
SPI bus lock, the configuration field is deprecated.
2020-04-17 18:15:33 +08:00
Michael (XIAO Xufeng)
5404e3d434 esp_flash: fix cache exception when CS pin is through IOMUX 2020-04-17 18:15:33 +08:00
Michael (XIAO Xufeng)
11501dbaa9 esp_flash: fix the cleanup when add device fails 2020-04-17 18:15:32 +08:00
Michael (XIAO Xufeng)
dc26065a72 esp_flash: fix the regression of non-quad mode by default chip driver
The issue is introduced in 571864e8ae. The
esp_flash API tries to clear the QE bit when the flash is not working in
quad modes.

However this introduces a regression, compared to earlier versions and
the legacy API. When the chip is not detected, the generic chip driver
is used, which cannot 100% handle the QE bit properly for all flash
vendors. There may be some flash chips (e.g. MXIC) that can be used in
dual modes by legacy API, but output wrong data when the esp_flash API
clears the QE bit in a wrong way.

This commit reverts the QE force clearing behavior, so that it's safer
for the generic chip driver to work under dual modes.
2020-04-17 18:15:31 +08:00
Michael (XIAO Xufeng)
61ce037fc1 Merge branch 'feat/esp_flash_support_mxic' into 'master'
esp_flash: support MXIC flash chips

See merge request espressif/esp-idf!8037
2020-04-03 16:04:49 +08:00
Angus Gratton
d76bf19ffd docs: Explain custom partition types/subtypes in more detail
Including how to use with C++ (closes https://github.com/espressif/esp-idf/pull/1832)
2020-04-02 10:00:17 +11:00
Michael (XIAO Xufeng)
3b429766bc esp_flash: support MXIC flash chips
The default chip driver (chip_generic) use command 01H + 2 bytes to
clear the QE bit. However this will accidently change the configuration
register value of the MXIC chip.

MXIC chip driver is added to fix that.
2020-04-01 20:54:23 +08:00
Michael (XIAO Xufeng)
49a48644e4 spi: allow using esp_flash and spi_master driver on the same bus 2020-03-26 22:08:26 +08:00
Renz Bagaporo
3d0967a58a test: declare requirements and include dirs private 2020-03-23 10:58:50 +08:00
michael
3b1fa7b8f0 spi_flash: add caps for dummy output control 2020-03-11 16:13:39 +00:00
Jiang Jiang Jian
b7a14c47e6 Merge branch 'bugfix/customer_baidu_psram_stack_backtrace' into 'master'
added psram stack check in backtrace

See merge request espressif/esp-idf!7834
2020-03-06 11:35:54 +08:00
Li Shuai
c796e14964 added psram stack check in backtrace 2020-03-03 11:52:29 +08:00
Angus Gratton
95f7b1985b spi_flash: Remove 16KB free internal heap limit for esp_flash_read() into PSRAM
Allocation of the temporary internal buffer will now repeat until a small enough buffer can be
allocated, and only fail if less than a 256 byte block of internal RAM is free.

Adds unit test for the same, and generic test utility for creating memory pressure.
2020-03-03 00:17:27 +00:00
Angus Gratton
fb340940d3 spi_flash: Fix over-allocation and OOM crash when reading from SPI flash to PSRAM buffers
Previously would try allocate buffer of minimum size 16KB not maximum size 16KB, causing
out of memory errors for any large reads, or if less than 16KB contiguous free heap.

Also, if using legacy API and internal allocation failed then implementation would abort()
instead of returning the error to the caller.

Added test for using large buffers in PSRAM.

Closes https://github.com/espressif/esp-idf/issues/4769

Also reported on forum: https://esp32.com/viewtopic.php?f=13&t=14304&p=55972
2020-03-03 00:17:27 +00:00
michael
7a3f21636f spi_flash: fix the reading issue using the ROM functions in the ROM 2020-02-26 11:12:09 +08:00
michael
f8fae4c80c spi_flash: resume unit tests for ESP32-S2 2020-02-26 11:12:08 +08:00
michael
2529eda907 ci: disable failed cases for s2 temporarily 2020-02-15 18:28:25 +08:00
Renz Christian Bagaporo
1f2e2fe8af soc: separate abstraction, description and implementation 2020-02-11 14:30:42 +05:00
Ivan Grokhotkov
4bfd0b961b Merge branch 'fix/spi_on_esp32s2' into 'master'
spi: support esp32s2

See merge request espressif/esp-idf!7432
2020-02-09 19:45:16 +08:00
Wangjialin
aaf119e930 flash(esp32s2): fix setting address field in spi user mode. 2020-02-07 16:10:51 +01:00
Michael (XIAO Xufeng)
7026087dc0 spi: support esp32s2 2020-01-26 17:24:12 +08:00
morris
e30cd361a8 global: rename esp32s2beta to esp32s2 2020-01-22 12:14:38 +08:00
morris
2422c52851 global: hello world on real esp32-s2 2020-01-16 17:43:59 +08:00
Wangjialin
d4e5980823 flash: fix 80Mhz for new spi flash driver on esp32s2 2020-01-16 17:43:59 +08:00
duyi
30a525aeb1 update cache config 2020-01-16 17:41:31 +08:00
morris
1c2cc5430e global: bring up esp32s2(not beta) 2020-01-16 17:41:31 +08:00
Renz Christian Bagaporo
fb1dec37d8 spi_flash: reenable mmap tests on esp32s2beta 2020-01-10 16:17:01 +11:00
michael
4220752aed ut: Move tests back from "esp32" subfolder
DISABLED_FOR_TARGETS macros are used

Partly revert "ci: disable unavailable tests for esp32s2beta"

This partly reverts commit 76a3a5fb48.

Partly revert "ci: disable UTs for esp32s2beta without runners"

This partly reverts commit eb158e9a22.

Partly revert "fix unit test and examples for s2beta"

This partly reverts commit 9baa7826be.

Partly revert "efuse: Add support for esp32s2beta"

This partly reverts commit db84ba868c.
2020-01-06 17:13:53 +08:00
Angus Gratton
5139934767 bootloader_common: Fix esp_partition_get_sha256(), add unit tests
Regression in 438d513a95

Reported here: https://esp32.com/viewtopic.php?f=13&t=13250&p=52460
2019-12-30 13:47:47 +11:00
Michael (XIAO Xufeng)
2ffe0aca12 esp_flash: increase the timeout for block erase 2019-12-24 16:50:09 +08:00
Renz Christian Bagaporo
e6ad330018 ble_mesh_wifi_coexist example: Disable Wi-Fi RX IRAM optimisation
Otherwise IRAM usage is too high in this example.
2019-11-28 09:20:00 +08:00
chenjianqiang
9f9da9ec96 feat(timer): refator timer group driver
1. add hal and low-level layer for timer group
2. add callback functions to handle interrupt
3. add timer deinit function
4. add timer spinlock take function
2019-11-21 14:14:19 +08:00
Ivan Grokhotkov
a74988ae3b Merge branch 'bugfix/cpp_extern' into 'master'
Add extern C header guards to some files

Closes IDFGH-2025 and IDFGH-2093

See merge request espressif/esp-idf!6611
2019-11-19 19:01:29 +08:00
wanglei
5e55ffc95a fix dummy issue in spi mem and make some spiflash api called from idf 2019-11-15 15:59:07 +00:00
wanglei
8bea8dacbc esp32s2beta: fix some macro and add flash wrap size condition 2019-11-15 15:59:07 +00:00
Gabriel Durante
5f0d257240 Added Cpp compatibility for components/spi_flash/include/esp_flash_spi_init.h
Merges https://github.com/espressif/esp-idf/pull/4260
2019-11-05 14:52:57 +01:00
Michael (XIAO Xufeng)
2660cb82ae spi_flash: support to verify written encrypted data
Also add unit test for encrypted_read
2019-10-30 05:49:50 +00:00
Angus Gratton
36cd75d7ed spi_flash tests: Fix exclusion of new API tests in legacy mode 2019-10-28 18:58:05 +11:00
Angus Gratton
894a3b4771 spi_flash: Remove duplicate spi_flash_rom_patch in CMakeLists.txt 2019-10-28 18:58:05 +11:00
Angus Gratton
8675a818f9 Merge branch 'master' into feature/esp32s2beta_merge 2019-10-22 13:51:49 +11:00
Ivan Grokhotkov
c7d8ef52ca Merge branch 'fix/esp_flash_no_qe' into 'master'
esp_flash: fix the QE write issue in high freq, and support UT for external chips

Closes IDF-888

See merge request espressif/esp-idf!5736
2019-10-20 13:59:30 +08:00
Ajita Chavan
56f73d7720 flash_ops: fix spi_flash_read with source buffer not from internal memory and size < 16
Closes https://github.com/espressif/esp-idf/issues/4010
2019-10-19 14:56:43 +08:00
Angus Gratton
496ede9bcd Merge branch 'master' into feature/esp32s2beta_merge 2019-10-15 14:59:27 +11:00
Michael (XIAO Xufeng)
eb104aa16f esp_flash: fix the quad issue for some GD flash chips
The GD flash with product ID 40H, is already used in Wrover-nosufix modules.
2019-10-14 17:25:59 +08:00
Michael (XIAO Xufeng)
1e1d50376b esp_flash: add unit test for external flash and QE toggling
Tests for external flash chips used to controlled by macros, one bin for
one chip. And tests are done manually. This commit refactored the test
so that all 3 chips can all run in single test.
2019-10-14 17:25:58 +08:00
Michael (XIAO Xufeng)
15d311bb80 esp_flash: rename internal variables for better readability
chip_drv in HAL are renamed as host
2019-10-14 17:25:58 +08:00
Michael (XIAO Xufeng)
571864e8ae esp_flash: fix set qe bit and write command issues
There used to be dummy phase before out phase in common command
transactions. This corrupts the data.

The code before never actually operate (clear) the QE bit, once it finds
the QE bit is set. It's hard to check whether the QE set/disable
functions work well.

This commit:

1. Cancel the dummy phase

2. Set and clear the QE bit according to chip settings, allowing tests
   for QE bits. However for some chips (Winbond for example), it's not
   forced to clear the QE bit if not able to.

3. Also refactor to allow chip_generic and other chips to share the same
   code to read and write qe bit; let common command and read command share
   configure_host_io_mode.

4. Rename read mode to io mode since maybe we will write data with quad
   mode one day.
2019-10-14 17:25:58 +08:00
Michael (XIAO Xufeng)
afbe1ba878 spi: move deprecated functions into internal header
Resolves https://github.com/espressif/esp-idf/issues/4132
2019-10-08 11:51:39 +08:00
Ivan Grokhotkov
5830f529d8 Merge branch 'master' into feature/esp32s2beta_merge 2019-10-02 19:01:39 +02:00
Ivan Grokhotkov
ccde8c7d2f spi_flash: load partition table before adding an external partition
esp_partition_register_external did not call load_partitions, so if
it was called before any call to esp_partition_find, then the main
partition table would never be loaded. Introduce new function,
ensure_partitions_loaded, and call it both from esp_partition_find and
esp_partition_register_external.

Closes https://github.com/espressif/esp-idf/issues/4116
2019-09-30 16:11:09 +02:00
Angus Gratton
b0bd4d0f14 Merge branch 'fix/esp_flash_adapter_in_iram' into 'master'
esp_flash: put adapter to legacy functions into IRAM to be back-compatible

See merge request espressif/esp-idf!6135
2019-09-20 18:21:58 +08:00
Wang Fang
32adfdc307 Add Chinese translation for the 2nd batch of the files in storage folder in api-reference.
1. The translation should be first reviewed by technical reviewers;
2. and then by language reviewers.

For the translation for the first batch of files, please see !MR5620 and !MR5613
2019-09-20 12:32:55 +08:00
Angus Gratton
adfc06a530 Merge branch 'master' into feature/esp32s2beta_merge 2019-09-20 10:28:37 +10:00
michael
70d771eb2d esp_flash: put adapter to legacy functions into IRAM to be back-compatible 2019-09-18 15:07:47 +08:00
Angus Gratton
438d513a95 Merge branch 'master' into feature/esp32s2beta_merge 2019-09-16 16:18:48 +10:00
Michael (XIAO Xufeng)
511820820e esp_flash: fix the coredump issue
During coredump, dangerous-area-checking should be disabled, and cache
disabling should be replaced by a safer version.

Dangerous-area-checking used to be in the HAL, but it seems to be more
fit to os functions. So it's moved to os functions. Interfaces are
provided to switch between os functions during coredump.
2019-09-14 17:01:36 +08:00
Michael (XIAO Xufeng)
6139864a4c esp_flash: fix coredump for legacy spi flash API
When legacy mode is used, the coredump still fails during linking
because "esp_flash_init_default_chip", "esp_flash_app_init" and
"esp_flash_default_chip " are not compiled and linked.

Instead of using ``if`` macros in callers, these functions are protected
by ``if`` macros in the header, and also not compiled in the sources.
"esp_flash_default_chip" variable is compiled with safe default value.
2019-09-14 16:56:31 +08:00
Michael (XIAO Xufeng)
d008c47dac esp_flash: add support for encrypted read and write
Using legacy implementation.
2019-09-12 12:41:50 +08:00
Li Shuai
d48aac96a1 util-test: Fix the conflict target of esp32_test_logo between esp32s2beta and esp32 2019-09-10 20:49:36 +08:00
Li Shuai
d5a9b1a240 util-test: The cache and spi_flash tests passed 2019-09-09 16:59:29 +08:00
Angus Gratton
35147119f1 Merge branch 'feature/support_ut_esp32s2beta' into 'feature/esp32s2beta'
ci: support build and run UT for esp32s2beta

See merge request espressif/esp-idf!5702
2019-09-09 08:34:16 +08:00
Alex Lisitsyn
7ff9538c48 espcoredump: fix issue with spi_flash access
spi_flash has been updated and its functions work from flash by default instead of IRAM that cause issue
add Kconfig value into espcoredump to enable spi_flash legacy mode (CONFIG_SPI_FLASH_USE_LEGACY_IMPL) when core dump is selected
fix spi_flash issues to work correctly with legacy mode when CONFIG_SPI_FLASH_USE_LEGACY_IMPL is used
2019-09-06 15:37:55 +08:00
wanglei
653d8b5bdd update cache and spiram related files and bug fixes
1. remove speed dependency of SPIRAM
2. support wrap mode of cache, flash and SPIRAM
3. fix some bugs on cache modes support
2019-09-05 14:14:49 +08:00
Michael (XIAO Xufeng)
76a3a5fb48 ci: disable unavailable tests for esp32s2beta 2019-09-04 10:53:25 +10:00
Michael (XIAO Xufeng)
9f1c8f0c76 spi_flash: support esp32s2beta 2019-09-04 10:53:25 +10:00
Michael (XIAO Xufeng)
9baa7826be fix unit test and examples for s2beta 2019-09-04 10:53:25 +10:00
Ivan Grokhotkov
12c9d9a564 spi_flash: remove duplicate definition of spi_flash_unlock
The other (static) definition is in flash_ops.c, all references are
also in flash_ops.c.
2019-08-23 12:37:55 +08:00
Angus Gratton
6990a7cd54 Merge branch 'master' into feature/esp32s2beta_update 2019-08-19 15:03:43 +10:00
Angus Gratton
74c2eb3aff Merge branch 'fix/esp_flash_set_get_wp' into 'master'
esp_flash: fix the set/get write protection functions

See merge request espressif/esp-idf!5682
2019-08-16 06:14:48 +08:00
Angus Gratton
18c5cfadae Fix function prototypes 2019-08-13 17:14:16 +10:00
Angus Gratton
309376f51a spi_flash: Force legacy mode for ESP32-S2
Can be removed once IDF-763 is merged
2019-08-13 17:14:16 +10:00
Angus Gratton
8f74271d5d esp_rom: Fail immediately if the wrong SoC's header file is included 2019-08-12 16:57:40 +10:00
Angus Gratton
2f56116db2 Cleanup of previous merge commit 2019-08-12 16:57:40 +10:00
Michael (XIAO Xufeng)
264ffbeb14 timer_group: use the LL 2019-08-09 13:46:31 +08:00
Michael (XIAO Xufeng)
e947522f38 esp_flash: improve the comments a bit 2019-08-08 23:18:01 +08:00
Michael (XIAO Xufeng)
e5704ab1a8 esp_flash: fix the set/get write protection functions
Add support for get write protection support, fixed the duplicated
set_write_protection link.

All the write_protection check in the top layer are removed. The lower
levels (chip) should ensure to disable write protection before the
operation start.
2019-08-08 23:18:00 +08:00
Angus Gratton
04ae56806c Merge branch 'master' into feature/esp32s2beta_update 2019-08-08 15:26:58 +10:00
Angus Gratton
24d26fccde Merge branch 'master' into feature/esp32s2beta_update 2019-08-08 13:44:24 +10:00
Anton Maklakov
ec94ee80f7 Fix a build issue with replacing init_spi_flash() in the host tests 2019-08-01 16:28:56 +07:00
Anton Maklakov
afbaf74007 tools: Mass fixing of empty prototypes (for -Wstrict-prototypes) 2019-08-01 16:28:56 +07:00
Angus Gratton
058ef98c33 Merge branch 'feature/cmake_default_build_system' into 'master'
cmake: Make CMake the default build system

Closes IDF-198 and IDF-325

See merge request espressif/esp-idf!5328
2019-07-10 08:16:39 +08:00
Angus Gratton
47bbb107a8 build system: Use CMake-based build system as default when describing commands 2019-07-08 17:31:27 +10:00
Martin Thierer
d6c2dad101 esp_partition_erase_range(): rename parameter "start_addr" to "offset"
The name "start_addr" (which goes straight into the docs) implies
it's an absolute address while in fact it's an offset into the
partition like what's used in all the other esp_partition_*
functions.

So in order to avoid confusion make the name consistent with the
parameter names used for the other partition functions and call it
"offset".

Merges https://github.com/espressif/esp-idf/pull/3750
2019-07-08 17:29:05 +10:00
Ivan Grokhotkov
1c17558e6e spi_flash: use same argument types in .h and .c files
Fixes compilations on targets where size_t != uint32_t
2019-07-02 10:26:06 +02:00
Ivan Grokhotkov
ec427a5b43 spi_flash: support for partitions in external flash 2019-07-02 10:26:06 +02:00
Michael (XIAO Xufeng)
d6bd24ca67 esp_flash: add initialization interface for SPI devices 2019-06-27 13:27:27 +08:00
Renz Christian Bagaporo
9b350f9ecc cmake: some formatting fixes
Do not include bootloader in flash target when secure boot is enabled.
Emit signing warning on all cases where signed apps are enabled (secure
boot and signed images)
Follow convention of capital letters for SECURE_BOOT_SIGNING_KEY
variable, since it is
relevant to other components, not just bootloader.
Pass signing key and verification key via config, not requiring
bootloader to know parent app dir.
Misc. variables name corrections
2019-06-21 19:53:29 +08:00
Renz Christian Bagaporo
9eccd7c082 components: use new component registration api 2019-06-21 19:53:29 +08:00
Michael (XIAO Xufeng)
37cb673cd7 esp_flash: update the document to the latest API 2019-06-20 11:50:23 +08:00
Ivan Grokhotkov
026533cd72 esp_flash: fix C++ compilation and some typos 2019-06-20 10:55:13 +08:00
Michael (XIAO Xufeng)
caf121e4b6 esp_flash: break the inappropriate include chain in spi_flash_host_drv.h 2019-06-20 10:55:12 +08:00
suda-morris
3f7a571c90 fix errors when ci testing for esp32 2019-06-19 15:31:47 +08:00
Michael (XIAO Xufeng)
1036a091fe spi_flash: support working on differnt buses and frequency 2019-06-18 06:32:52 +00:00
Angus Gratton
ce4de867d6 spi_flash: New low-level flash API 2019-06-18 06:32:52 +00:00
Kirill Chalov
4faf2de035 Doc/review api ref storage 2019-06-17 14:23:52 +08:00
Wang Jia Lin
e2d1c6234f Merge branch 'bugfix/improve_flash_dio_read_timing' into 'master'
bugfix(flash): fix flash dio read mode configuration error on SPI0

See merge request idf/esp-idf!5086
2019-06-14 12:10:46 +08:00
Ivan Grokhotkov
cfba50811d spi_flash: fix unit tests compilation 2019-06-13 19:34:40 +08:00
Roland Dobai
22d070e0af spi_flash: Rename long Kconfig options 2019-06-12 08:03:07 +02:00
Roland Dobai
842384a0d3 spi_flash: Fix Kconfig indentation
Closes https://github.com/espressif/esp-idf/issues/3598
2019-06-12 08:03:07 +02:00
Renz Christian Bagaporo
54ef60f26b component: revert some of the dependency corrections
!4452 and !4897 made some ill-advised corrections to dependency info;
revert those in this MR. Handling pre-built binaries as imported
libraries is retained, however.
2019-06-11 18:09:26 +08:00
suda-morris
4a79d750a5 clean up build warnings 2019-06-11 13:07:37 +08:00
Angus Gratton
ddbd09eb15 esp32/esp32s2beta: Extract common SPIRAM options into esp_commmon component 2019-06-11 13:07:37 +08:00
suda-morris
84b2f9f14d build and link hello-world for esp32s2beta 2019-06-11 13:07:37 +08:00
suda-morris
61ce868396 make bootloader_support support esp32s2beta 2019-06-11 13:07:02 +08:00
Konstantin Kondrashov
399d2d2605 all: Using xxx_periph.h
Using xxx_periph.h in whole IDF instead of xxx_reg.h, xxx_struct.h, xxx_channel.h ... .

Cleaned up header files from unnecessary headers (releated to soc/... headers).
2019-06-03 14:15:08 +08:00
chenjianqiang
d68f1907ef bugfix(flash): improve flash dio read timing
When flash work in DIO Mode, in order to ensure the fast read mode of flash
is a fixed value, we merged the mode bits into address part, and the fast
read mode value is 0 (the default value).
2019-05-28 14:51:04 +08:00
Roland Dobai
1ad2283641 Rename Kconfig options (components/bootloader) 2019-05-21 09:32:55 +02:00
Roland Dobai
0ae53691ba Rename Kconfig options (components/esp32) 2019-05-21 09:09:01 +02:00
Renz Christian Bagaporo
477fa49fc0 examples: update idf_as_lib example to use new api 2019-05-14 18:01:14 +08:00
Renz Christian Bagaporo
ffec9d4947 components: update with build system changes 2019-05-13 19:59:17 +08:00
Tim Nordell
7892cf6a03 partition: Fix "encrypted" read/write when encryption is disabled
According to the documentation[1][2] for partitions, setting the encrypted
flag for partitions should be a no-op when system level encryption isn't
enabled.  The current implementation, however, does not actually match
the documentation and it ends up with an unreadable partition via the
partition API if a partition flag is marked as encrypted without
system-level encryption enabled.  (This is because the writes go through
the encryption block, and reads do not go through the encryption block
when this situation occurs causing unreadable data to the application
running.) This fixes up the read-back of the partition table to match
whether or not the partition is currently encrypted under the hood.

This should not affect the bootloader's code for reading/writing encrypted
partitions as the bootloader directly invokes the spi_flash_write*(...)
APIs.

[1] https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/partition-tables.html#flags
[2] https://docs.espressif.com/projects/esp-idf/en/latest/security/flash-encryption.html#encrypted-partition-flag

Closes https://github.com/espressif/esp-idf/pull/3328

Signed-off-by: Tim Nordell <tim.nordell@nimbelink.com>
2019-05-03 15:03:04 +05:30
Michael (XIAO Xufeng)
562af8f65e global: move the soc component out of the common list
This MR removes the common dependency from every IDF components to the SOC component.

Currently, in the ``idf_functions.cmake`` script, we include the header path of SOC component by default for all components.
But for better code organization (or maybe also benifits to the compiling speed), we may remove the dependency to SOC components for most components except the driver and kernel related components.

In CMAKE, we have two kinds of header visibilities (set by include path visibility):

(Assume component A --(depends on)--> B, B is the current component)

1. public (``COMPONENT_ADD_INCLUDEDIRS``): means this path is visible to other depending components (A) (visible to A and B)
2. private (``COMPONENT_PRIV_INCLUDEDIRS``): means this path is only visible to source files inside the component (visible to B only)

and we have two kinds of depending ways:

(Assume component A --(depends on)--> B --(depends on)--> C, B is the current component)

1. public (```COMPONENT_REQUIRES```): means B can access to public include path of C. All other components rely on you (A) will also be available for the public headers. (visible to A, B)
2. private (``COMPONENT_PRIV_REQUIRES``): means B can access to public include path of C, but don't propagate this relation to other components (A). (visible to B)

1. remove the common requirement in ``idf_functions.cmake``, this makes the SOC components invisible to all other components by default.
2. if a component (for example, DRIVER) really needs the dependency to SOC, add a private dependency to SOC for it.
3. some other components that don't really depends on the SOC may still meet some errors saying "can't find header soc/...", this is because it's depended component (DRIVER) incorrectly include the header of SOC in its public headers. Moving all this kind of #include into source files, or private headers
4. Fix the include requirements for some file which miss sufficient #include directives. (Previously they include some headers by the long long long header include link)

This is a breaking change. Previous code may depends on the long include chain.
You may need to include the following headers for some files after this commit:

- soc/soc.h
- soc/soc_memory_layout.h
- driver/gpio.h
- esp_sleep.h

The major broken include chain includes:

1. esp_system.h no longer includes esp_sleep.h. The latter includes driver/gpio.h and driver/touch_pad.h.
2. ets_sys.h no longer includes soc/soc.h
3. freertos/portmacro.h no longer includes soc/soc_memory_layout.h

some peripheral headers no longer includes their hw related headers, e.g. rom/gpio.h no longer includes soc/gpio_pins.h and soc/gpio_reg.h

BREAKING CHANGE
2019-04-16 13:21:15 +08:00
Renz Christian Bagaporo
90ee405afd ldgen: update component linker fragment files 2019-04-04 15:57:34 +08:00
morris
dbdb299bb1 create xtensa component
1. move xtensa specific files out of esp32 component
2. merge xtensa-debug-module component into xtensa
2019-03-27 20:24:28 +08:00
morris
a2f07b0806 move common include files from esp32 into esp_common 2019-03-26 11:57:03 +08:00
morris
c159984264 separate rom from esp32 component to esp_rom
1. separate rom include files and linkscript to esp_rom
2. modefiy "include rom/xxx.h" to "include esp32/rom/xxx.h"
3. Forward compatible
4. update mqtt
2019-03-21 18:51:45 +08:00
Ivan Grokhotkov
106dc05903 Merge branch 'feature/specify_includes_belonging_esp32' into 'master'
move esp32 chip specific includes to esp32/xxx.h

See merge request idf/esp-idf!4534
2019-03-21 18:34:08 +08:00
morris
956c25dedd move esp32 chip specific includes to esp32/xxx.h 2019-03-18 17:14:05 +08:00
morris
fae39dc326 merge esp_flash_data_types into esp_flash_partitions 2019-03-18 08:51:55 +00:00
Mahavir Jain
16adb9d62a spi_flash: add test case for stale read issue on memory mapped partition 2019-03-13 05:38:01 +00:00
Mahavir Jain
2752654043 spi_flash: fix stale read issue for memory mapped partition
On flash program operation (either erase or write), if corresponding address has
cache mapping present then cache is explicitly flushed (for both pro and app cpu)

Closes https://github.com/espressif/esp-idf/issues/2146
2019-03-13 05:38:01 +00:00
Angus Gratton
961e433395 Merge branch 'bugfix/spi_flash_exclude_encrypted' into 'master'
esp_partition: disable encrypted reads/writes if flash encryption is disabled

See merge request idf/esp-idf!4099
2019-03-13 13:15:24 +08:00
Konstantin Kondrashov
e916cf52a3 bootloader: Add support of anti-rollback
Added:
* set a secure version in app/bootloader.
* description anti-rollback to ota part
* emulate the secure_version write and read operations
* efuse_em partition.
* a description about a rollback for native_ota_example.

Closes: TW26335
2019-02-14 18:51:43 +08:00
Roland Dobai
37126d3451 Correct Kconfigs according to the coding style 2019-01-29 13:37:01 +01:00
Ivan Grokhotkov
bf35ef1ce7 esp_partition: disable encrypted reads/writes if flash encryption is disabled
Saves 400 bytes of IRAM.
2019-01-10 21:51:09 +08:00
Ivan Grokhotkov
a46b884a14 Merge branch 'feature/unit_test_example' into 'master'
Move Unity into components, add unit test example

See merge request idf/esp-idf!3562
2018-11-19 18:35:54 +08:00
Ivan Grokhotkov
6091021e83 unity: separate common and IDF specific functionality
New unity component can be used for testing other applications.
Upstream version of Unity is included as a submodule.
Utilities specific to ESP-IDF unit tests (partitions, leak checking
setup/teardown functions, etc) are kept only in unit-test-app.
Kconfig options are added to allow disabling certain Unity features.
2018-11-19 12:36:31 +08:00
Renz Bagaporo
63411fc556 tools: implement linker script generation 2018-11-16 12:42:02 +08:00
Alexey Gerenkov
78a7a152d1 esp32: Fixes freezing core dump process when flash write address checks are enabled 2018-11-15 06:13:48 +00:00
Renz Bagaporo
cc774111bf cmake: Add support for test build 2018-10-20 12:07:24 +08:00
Mahavir Jain
b3aff63db4 app_update: fix intermittent failure with firmware updates
Routine `spi_flash_cache2phys` sometimes return incorrect value,
resulting in failure in getting currently running ota partition.
This in turn aborts firmware update process.This issue was more
prominent with SPIRAM enabled cases.

Fix ensures proper cache guards during `spi_flash_cache2phys`, and
also for few other similar APIs.

In addition, `esp_ota_get_running_partition` has also been optimized
to save currently running partition for subsequent invocations.

Fixes https://github.com/espressif/esp-idf/issues/2451
2018-10-18 04:38:31 +00:00
Sagar Bijwe
48fccbf5dd nvs_flash: Add support for nvs encryption 2018-09-24 11:25:21 +05:30
Renz Christian Bagaporo
d9939cedd9 cmake: make main a component again 2018-09-11 09:44:12 +08:00
Angus Gratton
b355854d4d Merge branch 'master' into feature/cmake 2018-09-05 10:35:04 +08:00
Mahavir Jain
8227db4f5e spi_flash: fix erase_range for block erase check
Erase in block (64k) as much as possible, before falling back
to sector (4k) erase.

Signed-off-by: Mahavir Jain <mahavir@espressif.com>
2018-08-29 12:04:32 +00:00
Angus Gratton
ff2404a272 Merge branch 'master' into feature/cmake 2018-08-16 17:14:17 +10:00
Konstantin Kondrashov
117c79eae5 app_update: Add API for getting sha256_of_partition
Added bootloader_common_get_sha256_of_partition() and esp_partition_get_sha256() - get or calculate SHA-256
digest for app and data partitions.
Added bootloader_sha256_hex_to_str() - helps to print SHA-256 digest
Added esp_partition_check_identity() - compares two partitions by SHA-256 digest

Refactoring a function esp_image_load() in bootloader space to esp_image_verify() and
bootloader_load_image(). Old name function esp_image_load is deprecated
and will remove in V4.0 version.

spi_flash/sim: Fix error test_host. Add stub for bootloader_common_get_sha256_of_partition in sim/stubs
2018-08-13 13:59:07 +05:00
Angus Gratton
7ea4db72de Merge branch 'bugfix/wl_encryption' into 'master'
Bugfix: WL works with encrypted flash

See merge request idf/esp-idf!2530
2018-08-01 15:05:47 +08:00
Ivan Grokhotkov
79e7f02286 spi_flash: allocate mmap pages array in internal memory
* spi_flash_mmap_pages needs pages array to be in internal memory.
  Document and check this.

* Fix a bug that spi_flash_mmap did not allocate pages array in
  internal memory.

* Minor style fixes: const-ify pages argument of spi_flash_mmap, add
  spaces around operators, mark output arguments with [out].

Closes https://github.com/espressif/esp-idf/issues/2229.
2018-07-31 13:11:04 +03:00
Dmitry
6a950d6a17 Build test applicatoin on host failer fixed.
Make host tests compilible.
2018-07-31 08:45:43 +03:00
Dmitry
f05f3fbde8 Added test for version update from V1 to V2. Problems for tests on host are fixed. Random function changed to esp_random() 2018-07-31 08:45:42 +03:00
Renz Bagaporo
70e68c99d3 Modifications for fs profiling tool 2018-07-23 05:24:33 +00:00
Angus Gratton
a67d5d89e0 Replace all DOS line endings with Unix
Command run was:
git ls-tree -r HEAD --name-only | xargs dos2unix
2018-07-12 19:10:37 +08:00
Ivan Grokhotkov
59c96ae331 Merge branch 'bugfix/spi_flash_deadlock' into 'master'
spi_flash: raise priority of the task performing spi_flash operation

See merge request idf/esp-idf!2609
2018-07-02 18:39:16 +08:00
Anton Maklakov
f42b91fe46 spi_flash: fix errors for GCC 8 support
components/spi_flash/partition.c: In function 'load_partitions':
components/spi_flash/partition.c:179:66: error: argument to 'sizeof' in 'strncpy' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
         strncpy(item->info.label, (const char*) it->label, sizeof(it->label));
                                                                  ^
2018-07-02 09:05:00 +00:00
Ivan Grokhotkov
f9f2937694 spi_flash: raise priority of the task performing spi_flash operation
The fix is for the situation when cache disabling mechanism causes
a deadlock with user tasks. Situation is as follows:

1. spi_flash operation is started from low-priority task on CPU0
2. It uses IPC to wake up high-priority IPC1 task on CPU1, preventing
   all other tasks on CPU1 from running. This is needed to safely
   disable the cache.
3. While the task which started spi_flash operation is waiting for IPC1
   task to acknowledge that CPU1 is not using cache anymore, it is
   preempted by a higher priority application task ("app0").
4. Task app0 busy-waits for some operation on CPU1 to complete. But
   since application tasks are blocked out by IPC1 task, this never
   happens. Since app0 is busy-waiting, the task doing spi flash
   operation never runs.

The more or less logical soltion to the problem would be to also do
cache disabling on CPU0 and the SPI flash operation itself from IPC0
task. However IPC0 task stack would need to be increased to allow doing
SPI flash operation (and IPC1 stack as well). This would waste some
memory. An alternative approach adopted in this fix is to call FreeRTOS
functions to temporary increase the priority of SPI flash operation task
to the same level as the IPC task.

Fixes https://github.com/espressif/arduino-esp32/issues/740
Fixes https://github.com/espressif/esp-idf/issues/1157
2018-07-01 20:44:42 +08:00
Konstantin Kondrashov
17dac0d273 spi_flash: Fix error unit tests on host
IDF had two defines ESP_PARTITION_TABLE_OFFSET and ESP_PARTITION_TABLE_ADDR. They were the same and equal by 0x8000.
A define ESP_PARTITION_TABLE_ADDR was removed from IDF.
A define ESP_PARTITION_TABLE_OFFSET depends on option CONFIG_PARTITION_TABLE_OFFSET in Kconfig.

Now using only #define ESP_PARTITION_TABLE_OFFSET CONFIG_PARTITION_TABLE_OFFSET
2018-06-19 14:30:25 +05:00
Angus Gratton
43b6c76bba Merge branch 'feature/expansion_space_for_bootloader' into 'master'
partition_table: Moving to custom offset

See merge request idf/esp-idf!2263
2018-06-18 12:34:53 +08:00
Angus Gratton
59ab2136e8 Merge branch 'doc/kconfig_item' into 'master'
doc: fix the level inconsistent issue in Kconfig document

See merge request idf/esp-idf!2460
2018-06-14 12:51:50 +08:00
Konstantin Kondrashov
3e0ac4db79 partition_table: Expanding the space under the bootloader
Allows you to move the partition table, it gives more space for the bootloader.
Added a new utility - parttool.py. This utility can search for the offset and/or size of the partitions by name and type/subtype. Use for getting APP_OFFSET and PHY_DATA_OFFSET.
The linker(esp32.bootloader.ld) made changes that allow you to write a custom bootloader code more.

TW14125
2018-06-08 18:47:29 +05:00
Renz Bagaporo
8caab13faa spi_flash: Enable flash emulation down to ROM function calls 2018-06-06 17:35:30 +00:00
Renz Bagaporo
e542b7a920 spiffs: Make spiffs runnable on host
Makes spiffs component runnable on host. Depends on the host library build
of flash emulator. Includes a basic sanity test of
mounting a volume, opening a file, writing to the file, reading the file,
closing the file and unmounting volume.
2018-06-06 17:35:30 +00:00
Renz Bagaporo
af629b3547 fatfs: Make fatfs runnable on host
Makes fatfs component runnable on host. Depends on the host library build
of wear levelling and flash emulator. Includes a basic sanity test of
mounting a volume, opening a file, writing to the file, reading the file,
closing the file and unmounting volume.
2018-06-06 17:35:30 +00:00