Zephyr 1.5.0

The Zephyr Engineering team is glad to announce the release of Zephyr
Kernel 1.5.0. This is the first release to follow the 3-month release
cadence. This release includes numerous fixes and support for major
features. Additional changes include support for new drivers, sensors,
and boards.

Major enhancements included with the release:

• TCP Support
• Integration of the Paho MQTT Library support with QoS
• Flash Filesystem Support
• Integration of the mbedTLS library for encryption
• Improved BR/EDR support (for L2CAP, in particular).
• Support for the Altera Nios II/f soft CPU architecture

A detailed list of changes since v1.4.0 by component follows:

Kernel

• Added nano_fifo_put_list() APIs, which allows queuing a list of
  elements on a nanokernel FIFO.
• Removed unused memory pool structure field.
• Enhanced memory pool code.

Architectures

• ARM: Updated to include floating point registers.

Altera Nios II/f soft CPU architecture support

:   -   Internal Interrupt Controller
    -   Avalon Timer
    -   Avalon JTAG UART (polling mode) as default for
        qemu-system-nios2, and 16550 UART as default for
        Altera MAX10.

Boards

• Added Nios II QEMU board.
• Added configuration for Altera MAX10 FPGA.

Drivers and Sensors

• Sensors: Added driver for I2C HMC5883L magnetometer.
• Sensors: Added driver for I2C TMP112 temperature sensor.
• Sensors: Added driver for MAX44009 light sensor.
• Sensors: Added driver for LPS25HB.
• HAL: Updated QMSI drivers to 1.1
• Added DMA QMSI shim driver.
• Added Quark SE USB device controller driver.
• Added suspend/resume to QMSI drivers.
• Added Guard for critical sections of the QMSI drivers.
• Added Zephyr File System API.
• Added driver for ENC28J60 Ethernet SPI module.

Networking

• TCP Support
• Connection handling fixes in IP stack.
• Allow sending zero length user data IP packet.

Network Buffers

• New net_buf_simple API for light-weight on-stack (or static)
  buffers where a net_buf (and its associated pool) is overkill. The
  net_buf API now uses as an internal implementation
  detail net_buf_simple.
• Add support for network buffer fragmentation.
• Add more net_buf big endian helpers.

Bluetooth

• Multiple fixes & improvements to the nble driver.
• New API for dealing with Out of Band data (like the local address).
• Various smaller fixes & improvements in many places.

Build and Infrastructure

• Added “qemugdb” target to start a local GDB on port 1234.
• Added script to filter known issues in the build output.
• Sanity: Added “-R” option to build all test with assertions.

Libraries

• File system: Imported Open Source FAT FS 0.12a code.
• Encryption: Imported mbedTLS library.
• Encryption: Updated tinycrypt library to 2.0.

Documentation

• Fixed all the documentations warnings during build.
• Fixed several typos, trademarks and grammar.
• Moved all the boards documentation to the wiki.
• Moved Code Contribution documentation to the wiki.
• Added package “ncurses” to the list of requirements.
• Updated Mac OS X instructions.

Test and Samples

• Samples: Replaced old debug macro to use new SYS_LOG macro.
• Added TMP112 sensor application.
• Added Quark SE power management sample application.
• Added DMA memory to memory transfer sample.
• Added sample for MAX44009 light sensor.
• Added MQTT publisher and subscriber samples.
• Added mbedTLS sample client.

JIRA Related Items

Stories

• ZEP-49 - x86: unify separate SysV and IAMCU code
• ZEP-55 - enable nanokernel test_context on ARC
• ZEP-58 - investigate use of -fomit-frame-pointer
• ZEP-60 - irq priorities should be rebased to safe values
• ZEP-69 - Extend PWM API to use arbitrary unit of time
• ZEP-203 - clean up APIs for static exceptions
• ZEP-225 - Add kernel API to put SoC to Deep Sleep (DS) State
• ZEP-226 - Update sample PMA to support device suspend/resume
• ZEP-227 - Add kernel API to put SoC to Low Power State (LPS)
• ZEP-228 - File system interface designed after POSIX
• ZEP-232 - Support for USB communications device class ACM
• ZEP-234 - provide a direct memory access (DMA) interface
• ZEP-243 - Create Wiki Structure for Boards
• ZEP-249 - nios2: Enable altera_max10 board in sanitycheck runs for
  nanokernel
• ZEP-254 - nios2: define NANO_ESF struct and populate _default_esf
• ZEP-270 - nios2: determine optimal value for PERFOPT_ALIGN
• ZEP-271 - nios2: enable microkernel & test cases
• ZEP-272 - nios2: add global pointer support
• ZEP-273 - nios2: implement flashing scripts
• ZEP-274 - nios2: document GDB debugging procedure
• ZEP-275 - nios2: scope support for instruction/data caches
• ZEP-279 - nios2: demonstrate nanokernel hello world
• ZEP-285 - FAT filesystem support on top of SPI Flash
• ZEP-289 - nios2: implement kernel_event_logger
• ZEP-291 - Driver for the ENC28J60 ethernet device
• ZEP-304 - Investigate QEMU support for Nios II
• ZEP-327 - Encryption Libraries needed for Thread support
• ZEP-340 - TLS/SSL
• ZEP-354 - Provide a DMA driver for Quark SE core
• ZEP-356 - DMA device support
• ZEP-357 - Support for the MAX44009 sensor
• ZEP-358 - Add support for TMP112 sensor
• ZEP-412 - Add driver API reentrancy support to RTC driver for LMT
• ZEP-414 - Add driver API reentrancy support to flash driver
• ZEP-415 - aaU, I want to use the NATS messaging protocol to send
  sensor data to the cloud
• ZEP-416 - MQTT client capability: QoS1, QoS2
• ZEP-424 - AON counter driver needs to add driver API reentrancy
  support
• ZEP-430 - Add driver API reentrancy support to PWM shim driver
• ZEP-434 - Driver for HMC5883L magnetometer
• ZEP-440 - Add driver API reentrancy support to WDT shim driver
• ZEP-441 - Add driver API reentrancy support to GPIO shim drivers
• ZEP-489 - nios2: handle unimplemented multiply/divide instructions
• ZEP-500 - Domain Name System client library
• ZEP-506 - nios2: support baremetal boot and XIP on Altera MAX10
• ZEP-511 - Add Deep Sleep support in PMA
• ZEP-512 - Add suspend/resume support for some core devices to enable
  Deep Sleep support in PMA
• ZEP-541 - Integrate QMSI releases to Zephyr
• ZEP-567 - netz sample code
• ZEP-568 - MQTT QoS sample app
• ZEP-573 - IoT applications must use netz API
• ZEP-590 - Update Zephyr's tinycrypt to version 2.0
• ZEP-643 - Add file system API documentation
• ZEP-650 - Quark SE: Implement PM reference application
• ZEP-652 - QMSI shim driver: RTC: Implement suspend and resume
  callbacks
• ZEP-655 - QMSI shim driver: PWM: Implement suspend and resume
  callbacks
• ZEP-658 - QMSI shim driver: GPIO: Implement suspend and resume
  callbacks
• ZEP-659 - QMSI shim driver: UART: Implement suspend and resume
  callbacks
• ZEP-662 - QMSI shim driver: Pinmux: Implement suspend and resume
  callbacks

Epic

• ZEP-278 - Enable Nios II CPU on Altera Max10
• ZEP-284 - Flash Filesystem Support
• ZEP-305 - Device Suspend / Resume infrastructure
• ZEP-306 - PWM Enabling
• ZEP-406 - Drivers shall be re-entrant

Bug

• ZEP-68 - Final image contains duplicates of some routines
• ZEP-156 - PWM Set Value API behaves incorrectly
• ZEP-158 - PWM Set Duty Cycle API does not work
• ZEP-180 - make menuconfig user provided options are ignored at
  building time
• ZEP-187 - BLE APIs are not documented
• ZEP-218 - [drivers/nble][PTS_TEST] Fix responding with the
  wrong error codes to the Prepare Write Request
• ZEP-221 - [drivers/nble][PTS_TEST] Implement Execute Write
  Request handler
• ZEP-369 - When building out of the tree, application object files
  are not placed into outdir
• ZEP-379 - _k_command_stack may be improperly initialized when
  debugging
• ZEP-384 - D2000 hangs after I2C communication with BMC150 sensor
• ZEP-401 - PWM driver turns off pin if off time is 0 in set_values
• ZEP-423 - Quark D2000 CRB documentation should include instructions
  to flash bootloader
• ZEP-435 - Ethernet/IPv4/TCP: ip_buf_appdatalen returns wrong
  values
• ZEP-456 - doc: IDT security section dissapeared
• ZEP-457 - doc: contribute/doxygen/typedefs.rst: examples files are
  broken
• ZEP-459 - doc: kconfig reference entries in HTML are lacking a title
• ZEP-460 - doc: document parameters of DEVICE* macros
• ZEP-461 - Release 1.4.0 has broken the BMI160 sample as well as an
  application based on it
• ZEP-463 - Getting started guide "next" link doesn't take you to
  "Checking Out the Source Code Anonymously" section
• ZEP-469 - Ethernet/IPv4/TCP: net_receive & net_reply in server
  mode
• ZEP-474 - ND: Neighbor cache is not getting cleared
• ZEP-475 - Issue with timer callback routine: Condition checked is
  incorrect
• ZEP-478 - Linux setup docs missing step to install curses
  development package for Fedora
• ZEP-497 - Ethernet/IPv4/TCP: failed to get free buffer
• ZEP-499 - TMP007 driver returns invalid values for negative
  temperature
• ZEP-514 - memory corruption in microkernel memory pool defrag()
• ZEP-516 - Ubuntu setup instructions missing 'upgrade' step
• ZEP-518 - SPI not working on Arduino101
• ZEP-522 - TCP/client-mode: disconnect
• ZEP-523 - FIFOs defined by DEFINE_FIFO macro use the same memory
  buffer
• ZEP-525 - srctree changes are breaking applications
• ZEP-526 - build "kernel event logger" sample app failed for
  BOARD=quark_d2000_crb
• ZEP-534 - Scan for consistent use of "platform/board/SoC" in
  documentation
• ZEP-537 - doc: create external wiki page "Maintainers"
• ZEP-545 - Wrong default value of CONFIG_ADC_QMSI_SAMPLE_WIDTH
  for x86 QMSI ADC
• ZEP-547 - [nble] Failed to start encryption after reconnection
• ZEP-554 - samples/drivers/aon_counter check readme file
• ZEP-555 - correct libgcc not getting linked for CONFIG_FLOAT=y on
  ARM
• ZEP-556 - System hangs during I2C transfer
• ZEP-565 - Ethernet/IPv4/TCP: last commits are breaking network
  support
• ZEP-571 - ARC kernel BAT failed due to race in nested interrupts
• ZEP-572 - X86 kernel BAT failed: Kernel Allocation Failure!
• ZEP-575 - Ethernet/IPv4/UDP: ip_buf_appdatalen returns wrong
  values
• ZEP-595 - UART: usb simulated uart doesn't work in poll mode
• ZEP-598 - CoAP Link format filtering is not supported
• ZEP-611 - Links on downloads page are not named consistently
• ZEP-616 - OS X setup instructions not working on El Capitan
• ZEP-617 - MQTT samples build fail because netz.h file missing.
• ZEP-621 - samples/static_lib: fatal error: stdio.h: No such file or
  directory
• ZEP-623 - MQTT sample mqtt.h missing "mqtt_unsubscribe" function
• ZEP-632 - MQTT fail to re-connect to the broker.
• ZEP-633 - samples/usb/cdc_acm: undefined reference to
  'uart_qmsi_pm_save_config'
• ZEP-642 - Inconsistent interpretation of pwm_pin_set_values
  arguments among drivers
• ZEP-645 - ARC QMSI ADC shim driver fails to read sample data
• ZEP-646 - I2C fail to read GY2561 sensor when GY2561 & GY271 sensor
  are attached to I2C bus.
• ZEP-647 - Power management state storage should use GPS1 instead of
  GPS0
• ZEP-669 - MQTT fail to pingreq if broker deliver topic to client but
  client doesn't read it.
• ZEP-673 - Sanity crashes and doesn't kill qemu upon timeout
• ZEP-679 - HMC5883L I2C Register Read Order
• ZEP-681 - MQTT client sample throws too many warnings when build.
• ZEP-687 - docs: Subsystems/Networking section is almost empty
• ZEP-689 - Builds on em_starterkit fail
• ZEP-695 - FatFs doesn't compile using Newlib
• ZEP-697 - samples/net/test_15_4 cannot be built by sanitycheck
• ZEP-703 - USB sample apps are broken after QMSI update
• ZEP-704 - test_atomic does not complete on ARC
• ZEP-708 - tests/kernel/test_ipm fails on Arduino 101
• ZEP-739 - warnings when building samples for quark_se devboard