This flashes Zephyr at 0x1000: that's where the first stage bootloader,
part of the ESP32 ROM, expects to find an "image header".
The second-stage bootloader, part of ESP-IDF, isn't used by the Zephyr
port. However, the bootloader can be used if desired; please refer to
the ESP-IDF documentation on how to set up partitions tables and use
the bootloader.
The following environment variables will affect the ESP32 flashing
process:
Variable Default value
ESP_DEVICE /dev/ttyUSB0
ESP_BAUD_RATE 921600
ESP_FLASH_SIZE detect
ESP_FLASH_FREQ 40m
ESP_FLASH_MODE dio
ESP_TOOL espidf
It's impossible to determine which serial port the ESP32 board is
connected to, as it uses a generic RS232-USB converter. The default of
/dev/ttyUSB0 is provided as that's often the assigned name on a Linux
machine without any other such converters.
The baud rate of 921600bps is recommended. If experiencing issues when
flashing, try halving the value a few times (460800, 230400, 115200,
etc). It might be necessary to change the flash frequency or the flash
mode; please refer to the esptool documentation for guidance on these
settings.
If ${ESP_TOOL} is set to "espidf", the esptool.py script found within
ESP-IDF will be used. Otherwise, this variable is handled as a path to
the tool.
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
The first stage bootloader, part of the ESP32 ROM, already sets up
a stack that's sufficient to execute C programs. So, instead of
implementing __stack() in assembly, do it in C to simplify things
slightly.
This ESP32-specific initialization will perform the following:
- Disable the watchdog timer that's enabled by the bootloader
- Move exception handlers to IRAM
- Disable normal interrupts
- Disable the second CPU
- Zero out the BSS segment
Things that might be performed in the future include setting up the
CPU frequency, memory protection regions, and enabling the flash
cache.
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
Unconditionally use CONFIG_SIMULATOR_XTENSA to determine if XT_SIMULATOR
or XT_BOARD should be defined.
If CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC, also define XT_CLOCK_FREQ. This
isn't ideal as the clock frequency might be changed in runtime and this
effectively makes it a constant.
Until we can control the clock frequency in runtime, this will suffice.
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
This header is included by some files provided by ESP-IDF. Nothing
from this header file is actually used: it's only being added allow
things to compile with the minimal libc.
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
This is a minimal driver enabling console output during the port
bringup. While the driver works, only one of the three UART devices
are supported, and there isn't any way to change any parameters or
use interrupts. This will most likely be superceded by a proper
driver after the port has matured.
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
Due to the configurable nature of the Xtensa platform, the generic name of
"LX6" cannot be used to describe an SoC as far as Zephyr goes. So ESP32 is
defined both as a SoC and as a board.
This is based on work by Rajavardhan Gundi.
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
Three environment variables must be set to use this variant:
export ZEPHYR_GCC_VARIANT="espressif"
export ESP_IDF_PATH=/path/to/esp-idf
export ESPRESSIF_TOOLCHAIN_PATH=/path/to/xtensa-esp32-elf/
ESP-IDF is the SDK provided by Espressif. It contains, among other things,
the HAL and header files for registers and ROM functions used by the Zephyr
port. At this stage, with the exception of the HAL library, none of the
binary blobs provided by ESP-IDF are used. This can be obtained directly
from Espressif, at <https://github.com/espressif/esp-idf>.
Instructions on how to obtain the toolchain are detailed in the README for
ESP-IDF.
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
An OCF is a 10-bit value as defined by HCI, and therefore requires a
16-bit integer to store it.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Fixed assert due to incorrect implementation of stopping of
advertiser role under directed advertisement timeout, and
also, fixed assert due to adv stop ticker not being stopped
on advertisement disable from thread mode.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Added checks for advertiser and initiator/target addresses
received in CONNECT_IND when performing directed
advertising.
This is required to pass TP/CON/ADV/BV-04-C [Directed
Advertising Connection].
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
When directed advertisements timed out, connection context
associated was not being released. Subsequent connectable
advertising or connection creation failed.
This is now fixed by releasing the connection context on
directed advertisement timeout.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
If the CONFIG_NET_TCP_TIME_WAIT support is disabled, then do not
start to wait for reply to sent FIN in active close, but unref
the corresponding net_context in order to close the connection
as soon as possible.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
During the conversion of uint16_t to u16_t the value field of these
structs was not aligned properly.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Refactor whitelist handling into generic filter management in
preparation for future resolving list ID address filters.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
This reverts commit 83edd615ca.
Causes the documentation build to fail on Kconfig parsing, needs fixing.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Enable application specific configuration to be easily included
and manageable via Kconfig. Add sample.
Signed-off-by: Michał Kruszewski <mkru@protonmail.com>
Rename bt_gatt_unregister_service to bt_gatt_service_unregister to be
consistent with other APIs such as bt_gatt_service_register.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
ISSM team wanted to integrate
"samples/application_development/static_lib" app
into their IDE. Al-ashi, Mahmoud <mahmoud.al-ashi@intel.com> found
it failed to "make flash" this app.
Also this patch added "make flash" build targets.
Signed-off-by: Sharron LIU <sharron.liu@intel.com>
This initial commit adds the following:
* Handling of privacy HCI commands
* New Link Layer filter module for both whitelist and resolving list
* Advertising RPA generation with timeouts
Follow-up commits will expand the functionality.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Enforce the logical dependency between SMP, RPA generation and privacy
in the Kconfig files for the Bluetooth subsysem.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
For consistency with the return value and to conform with other naming
schemes, rename mem_is_zero() to mem_nz().
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
This is unmaintained and currently has no known users. It was
added to support a Wind River project. If in the future we need it
again, we should re-introduce it with an exception-based mechanism
for catching out-of-bounds memory queries from the debugger.
The mem_safe subsystem is also removed, it is only used by the
GDB server. If its functionality is needed in the future, it
shoudl be replaced with an exception-based mechanism.
The _image_{ram, rom, text}_{start, end} linker variables have
been left in place, they will be re-purposed and expanded to
support memory protection.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
