release_notes.txt

Cirrus Logic Alt-OS Driver SDK
Release Notes

=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.30.6
Date: 2026/08/13

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Add export firmware format support to CS40L26 baremetal example
Add firmware_block name option to firmware_converter export format

Fixed Bugs:

Add broadcast support to CS40L5X regmap writes

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.30.5
Date: 2026/08/03

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Add ff_cirrus style OWT writing to CS40L5X owt_demo sample application
Add waveform length field to PWLE OWT driver API
Change host initated haptic effect length calculation to no longer require .hwt
Modify CS40L5X Audio2haptics sample application to use zephyr shell commands
Add Vibecomp tuning and demo commands to CS40L5X audio2haptics sample app

Fixed Bugs:

Removed unecessary PLL openloop settings change in CS35L56 sample

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.30.4
Date: 2026/07/14

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Refactor CS40L50/5X PWLE/PCM OWT driver APIs
Add owt_demo sample applications for CS40L50/5X
Add A2H tuning/app state to CS40L26 baremetal application
Add CS40L50/5X firmware v4.0.7

Fixed Bugs:

Fix bug with metadata table ender in OWT waveforms

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.30.2
Date: 2026/06/26

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Improve documentation and formatting for cs35l56 and cs40l5x
Add App Note PDFs
Minor bugfixes for cs40l50 and cs40l5x

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.30.1
Date: 2026/06/03

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Add CL_MCU platform support
Add Audio2haptics sample application for CS40L5X
Add set gain function to CS40L50 baremetal bsp

Fixed Bugs:

Remove explicit interal boost configuration from CS40L50/5X driver

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.29.7
Date: 2026/05/22

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

Fixed Bugs:

Fix issue with filtering other PWLE waveforms in host initiated haptics applications

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.29.6
Date: 2026/05/08

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Add example baremetal sample application for CS35L56 Driver

Fixed Bugs:

Fix blackstar project compatability with rth waveform datastructure changes
Fix conflict with upstream zephyr in CS40L50 zephyr example overlays
Fix bug in rapid repeated triggers in host initiated haptics API

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.29.5
Date: 2026/04/27

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

Fixed Bugs:

Expose Host Initiated Haptics tunings and wavetable to public repo

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.29.4
Date: 2026/04/17

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Reorganize Host Initiated Haptics API in CS40l50 + CS40l5X BSP
Rename 'Sweep' to 'Grow' in HIH sample applications
Add basic sample_app to CS40l5X sample applications
Add microsoft ID support into hwt_converter for HIH applications

Fixed Bugs:

Fix algorithm blacklisting in firmware_converter for Jamerson/Peart ROM mode

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.29.3
Date: 2026/03/20

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Add interrupt error handling example to CS40L5X baremetal project
Add OWT API to CS40L5X driver
Create CS40L5X Host Initiated Haptics sample application
Improve zephyr sample application documentation

Fixed Bugs:

Fix Zephyr build warnings in various sample apps

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.29.1
Date: 2026/02/23

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

Fixed Bugs:

Force CS40L5X boot to wait for HALO_RUNNING

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.29.0
Date: 2026/02/20

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Add CS35L56 MCU driver and sample application
Add DSP State/Error check function to CS40L5X driver and baremetal app

Fixed Bugs:

Fix IRQ to event mapping in CS40L50 Driver
Change CS40L50 host initiated haptics app to account for SVC tone length
Reduce redundant I2C transactions in CS40L50 host initiated haptics app

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.28.3
Date: 2026/01/23

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Add OWT API into CS40L50 Driver
Add Host Initiated Haptics zephyr sample project
Update makefile to call "python" instead of "python3"
Clean up copyright headers in zephyr projects
Align reset line in zephyr sample applciation with other sdk examples

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.27.7
Date: 2025/12/12

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Improvements to Diagnostics sample
Firmware converter prints export size
Update CS40L5x and CS40L50 firmware

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.27.5
Date: 2025/11/12

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

Fixed Bugs:
Fix visibility for *_baremetal BSP files
STMCubeIDE build fixes

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.27.4
Date: 2025/11/11

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

Fixed Bugs:
Add missing blackstar main to cs40l5x

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.27.3
Date: 2025/11/11

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
Add STMCubeIDE config for cs40l5x
Add blackstar target for cs40l5x

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.27.2
Date: 2025/11/07

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
ASP streaming for CS40l50
Improved diagnostics measurement for CS40L50
ASP Streaming and Diagnostics Zephyr sample apps
Support for CS40L5x automotive Jamerson variants
Separate baremetal BSPs for CS40L50 and CS40L5x
Ability to blacklist coefficient data from conversion by algorithm name

Fixed Bugs:
Prevent unnamed symbols from being created during fw_img_v2 conversion

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.26.2
Date: 2025/09/26

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
WISCE script converter will separate symbols and registers

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.26.0
Date: 2025/09/12

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
CS40L50 Diagnostics
Firmware converter won't assign indexes with --preserve-filename option

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.25.3
Date: 2025/09/09

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
Update CS40L50 internal boost errata
Enforce word alignment in fw_img

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.25.2
Date: 2025/08/14

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

cs40l26: Add Amplifier defines

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.25.1
Date: 2025/07/03

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
158f5ca firmware_converter: Add symbols for PM sequence words
365c139 cs40l26: fix wseq init table

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.25.0
Date: 2025/06/19

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
Add additional defines for GPIO registers and fields in cs40l50_spec.h
Example code for managing multiple tuning sets in the CS40L50 BSPs

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.24.2
Date: 2025/04/25

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

Add RAM loading to cs40l50 Zephyr sample

Fixed Bugs:

Fix RAM loading for cs40l50

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.24.1
Date: 2025/02/21

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
Update cs40l50 init tables

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.24.0
Date: 2025/01/17

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
Baremetal target for CS40L50

05cc369 SDK release 4.24.0: updated copyrights and fixed whitespaces
ad17de3 cs40l50: Optimize driver features
eb995b1 cs40l50: Minimize firmware load
d773e90 cs40l50: Enable RAM FW conversion
9db8c9f cs40l50: Add baremetal target

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.23.2
Date: 2024/12/13

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
Zephyr sample applications for CS40L50

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.22.2
Date: 2024/10/29

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:

a712457 SDK release 4.22.2: updated copyrights and fixed whitespaces
88dd3fc cs40l26: Additional register defines
e1ead6d cs40l50: blackstar: Remove duplicate driver
c635237 firmware_converter: Rename coeff total blocks

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.22.1
Date: 2024/10/04

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
Firmware converter updates

5208a00 SDK release 4.22.1: updated copyrights and fixed whitespaces
2233039 firmware_converter: Omit structs from JSON
7f515b4 firmware_converter: Preserve Filename option
ffa25aa firmware_converter: Comment size of large controls

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.22.0
Date: 2024/09/06

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
Additional register defines for cs35l42 and cs40l26
Updated firmware for cs35l42

c48d03c SDK release 4.22.0: updated copyrights and fixed whitespaces
cc55b0b cs40l50: Set broadcast at wake
4fe6bd2 cs40l50: Move F0 and ReDC
9bc0c5a cs35l42: Update firmware
429d324 cs40l26: Addtitional register defines
51bb155 cs35l42: Add GPIO register defs
99631ee cs35l42: Fix DSP Inputs
b9c30bd cs35l42: Remove expected ReDC


Fixed Bugs:

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.21.0
Date: 2024/05/28

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
Jamerson: I2C Broadcast

b3fdd5e SDK release 4.21.0: updated copyrights and fixed whitespaces
dbc93c6 cs40l50: blackstar: Broadcast enable function
b5b5ea7 cs40l50: I2C Broadcast
feb4dff platform_bsp: blackstar: Handle broadcast I2C address
9451b1d platform_bsp: blackstar: Add I2C 2 Device
c07b067 cs35l42: Add I2S Port to Freertos main
cdf059a [SQA-8026] cs35l42: update firmware to 7.16.2
834cc9f [SQA-8026] cs35l42: Add missing wakeup configuration
c6696c2 common: get rid of caddr_t



=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.20.0
Date: 2023/06/27

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[DRV-6323] firmware_converter: Updated supported devices

Fixed Bugs:

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.19.0
Date: 2023/04/07

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2120] cs47l63: SCC trigger, download, decode and playback use-case
[SQA-2054] cs47l63: Implement compressed buffer API
[SQA-2054] common: Add ringbuffers
[SQA-2054] common: Compressed buffer API
[DRV-5891] cs40l50: Added driver API for F0 calibration, RAM FW download, Dynamic F0
[DRV-5958] cs40l50: support MBOX interrupts, event_handler
[DRV-5890] cs40l50: Implemented GPI trigger configuration
[DRV-6026] cs40l26: Added standalone wavetable loading.
[DRV-6027] cs40l26: Added polling for IRQ
[DRV-6082] cs40l26: Implement OWT loading, triggering, reset
[DRV-5971] cs40l26: Added support for Dynamic F0
[DRV-5948] cs40l26: Added click compensation
[DRV-5979] cs40l26: Implementing I2S streaming

Fixed Bugs:
test_tone_tables: fixed support for 100Hz

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.18.0
Date: 2022/10/19

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
cs35l42: changed dut_boot() for easier integration in stereo use case
cs40l26: Added bridge support
cs40l26: Add support for MBOX queue
cs40l26: add GPI controlled mute
cs40l50: Add RAM wavetable triggering
cs40l50: Add power API
cs40l50: Add API to set ReDC and F0
cs40l50: Add set timeout_ticks API
cs40l50: Add A1 errata and device configurations
cs40l50: Updated wt.bin and added cs40l50_wt.bin
firmware_converter: tidy up cmd line options for ROM

Fixed Bugs:
firmware_converter: handle nopad Halo files
cs40l26: Fix missing 'extern C' bracket
cs40l50: Corrected incorrect calibration value
tools: Fix issues with blackstar .launch
tools: Fixed incorrect PCM ReDC value from hwt_to_waveform tool
common: Added missing platform_bsp files for blackstar

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.17.0
Date: 2022/07/16

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2028] Added cs40l50 driver
[SQA-2649] Added hwt_to_waveform_converter to convert .hwt to .c and .h files
[SQA-2610] common: Add better warning for missing firmware files
[SQA-2704] firmware_converter - Add CS47L24 support
[SQA-2461] cs40l26: Added buzzgen api
[DRV-5704] cs40l26: Reading ROM w/ RAM wavetable
[SQA-2460] cs40l26: Added events to handler.

Fixed Bugs:

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.16.0
Date: 2022/06/24

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

[SQA-2384] firmware_converter: Add wmfw v1 support
[SQA-2700] firmware_converter: fix algorithm_description text collection
[SQA-2568] common: add switch to enable/disable multichannel UART
[SQA-2462] cs40l26: Added the allow/prevent hibernate function
[SQA-2695] CS40L25: Bridge not being compiled

Fixed Bugs:

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.15.0
Date: 2022/05/06

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2673] L41 - Added configurable wake source
[SQA-2626] cs35l42: Implement calibrate()

Fixed Bugs:

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.14.0
Date: 2022/04/11

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
L41 freertos: Increase size of Stack and Heap
[SQA-2625] L41 - fixed INTb triggering IRQ callback
[SQA-2676] L41 - handle calibration ReDC out of range
[SQA-2625] cs35l42: Implement event_handler
[SQA-2624] cs35l42: Implement power() part 2
[SQA-2623] cs35l42: Implement boot()
[SQA-2653] Initialise ret variable in mem_ena and mem_dis functions

Fixed Bugs:

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.13.0
Date: 2022/03/12

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2615] cs47l35:  Add bridge support
[SQA-2627] cs35l41:  Add bridge support
[SQA-2629] bridge:  Added integration documentation
[SQA-2648] cs40l26:  Changed the current RTH structure to support chirp and half-cycle
[SQA-2648] cs40l26:  Updated to the example waveforms and LED status for holdout example

Fixed Bugs:

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.12.0
Date: 2022/02/28

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2402] cs40l26:  added support for the Holdout hardware platform
[SQA-2496] cs40l26:  added initial support for Run-Time Haptics (RTH)
[SQA-2620] Added driver for cs35l42 to support dsp-bypass

Fixed Bugs:

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.11.0
Date: 2022/02/04

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
Added cs47l63 driver
firmware_converter:  added support for loading arbitrary binary blobs
bridge:  Move smcio.py and bridge.c to use binary instead of ASCII
bridge:  added message protocol version between MCU and agent
bridge:  variable BlockWrite chunk size
bridge:  Improve smcio packet encapsulation and bridge format

Fixed Bugs:
bridge:  fixed timeout & speed args when creating serial com port

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.10.0
Date: 2021/11/12

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2470] Bridge: Add more flexibile naming of bridge systems
[SQA-2534] firmware_converter: skip 'DUMMY' symbols for export cmd

Fixed Bugs:

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.9.0
Date: 2021/11/02

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2534] firmware_converter: remove duplicate and "DUMMY" symbols from firmware symbol header file
[SQA-2409] L25 - added 'live_oak' makefile and hardware target
[SQA-2533] cs47l35: Improve opus ringbuffer init
[SQA-2409] Added create_ide_projects to create IDE projects
[SQA-2409] Update build system to support multiple HW platforms

Fixed Bugs:
[SQA-2462] L26 - Fixed race condition reading DSP state transition.
[SQA-2462] L26 - Fixed failure calling called power(state) while in the same state returning FAIL.

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.8.0
Date: 2021/10/19

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2197] cs47l63: Add errata
[SQA-2304] cs47l67: Add SPI flash read and write commands
[SQA-2353] cs47l67: wisce_script_converer: Add support for processing SCS's activity output
[SQA-2501] wisce_script_converter: should return 0 instead of None
[SQA-2353] wisce_script_converter: SCS CSV activity output Add unit-test
[SQA-2353] wisce_script_converter: Add support for SCS's CSV activity output
[SQA-2473] wisce_script_converter: Fix -s option with c_functions output
[SQA-2197] cs47l63: Add patches
[SQA-2498] firmware_converter: Fix erroneous space in FWID when <6
[SQA-2468] cs47l35: Update silkcoder to 1.1.3
[SQA-2476] common: bridge: keep getting data from bridge file until newline
[SQA-2467] common: Only release a packet to fifo consumers when complete
[SQA-2453] Switch 'is' operations to '==' for literals
[SQA-2452] Fix double free in bsp_dut_boot
[SQA-2304] Add SPI flash read and write commands


Fixed Bugs:
[SQA-2473] wisce_script_converter: the -s option does not work with c_functions output

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.7.0
Date: 2021/08/27

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2041] Added cs40l26 driver for ROM mode
[SQA-2376] cs47l35: Update to latest Opus firmware
[SQA-2373] firmware_converter: Add no-sym-table option
[SQA-2385] firmware_converter: Add --sym-partition option
[SQA-2417] wisce_script_converter: add standalone comments to c_array
[SQA-2368] cs47l67: Make mandatory stdout/bridge filenames optional arguments
[SQA-2354] wisce_script_converter: change c_array size definition

Fixed Bugs:
[SQA-2375] bridge: make Ctrl+C stop the bridge

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.6.0
Date: 2021/08/06

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2324] L67: free up some more memory after boot complete
[SQA-2324] L63, L67: FLL code make more efficient
[SQA-2383] L35:  Add SC Voice and route mic audio through it to Opus
[SQA-2365] CS47L63: Add BoardHardwareID tags for bridge xml files
[SQA-2354] L67, L63 - Ported to regmap
[SQA-2387] L25 - added comment to cs40l25_power to clarify power_down
[SQA-2356] Renamed all fw_* folders to fw
[SQA-2386] L25 - gpio_detect is sampled only at fw init
[SQA-2320] L25 - added AN0511R1 PDF
[SQA-2320] L25 - made wrapper for write_acked_fw_control
[SQA-2369] Bridge: autodetect com port for Windows
[SQA-2352] wisce_script_converter: add a comment when loading commands from another file
[SQA-2354] wisce_script_converter: alternative c_array format.
[SQA-2354] L35, L15 - Ported to regmap

Fixed Bugs:
[SQA-2386] L25 - Fix update of GPIO_BUTTONDETECT

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.5.0
Date: 2021/07/15

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-1539] Shortened REGMAP_GET_CP_CONFIG to REGMAP_GET_CP
[SQA-2362] firmware_converter - added option to check WMDR fw revision against WMFW
[SQA-2320] L25 - ported to regmap, refactored unused code
[SQA-2350] L67 - Add bridge support
[SQA-2299] bridge/smcio: Changes to improve performance
[SQA-2302] L67 - Example code for E2E communication
[SQA-2322] L67 - test for configuring already active FLL

Fixed Bugs:
[SQA-2346] firmware_converter - binary output misses image version and has incorrect checksum
[SQA-2319] L25 - No method for ReDC-Compensation
[SQA-2372] Bridge: Fix agent does not handle multi-chip on block-writes

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.4.0
Date: 2021/06/25

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2085] Added regmap common module
[SQA-1554] L41 - ported to regmap
[SQA-2320] L41 driver refactored unused functionality
[SQA-2061] Added WISCE/StudioBridge target implementation, including virtual register map
[SQA-2300] CS47L67 - single FreeRTOS project, support for M2 minicard
[SQA-2315] wisce_script_converter - support for named lookups
[SQA-2314] wisce_script_converter - support for LOAD commands
Support for CS40L30 driver removed

Fixed Bugs:

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.3.0
Date: 2021/06/02

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2294] bridge_agent made more robust

Fixed Bugs:
[SQA-2316] L41 - was calling notification_cb twice
[SQA-2313] wisce_script_converter - rmodw fix

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.2.0
Date: 2021/05/19

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
L25 - Added support for 8kHz I2S streaming
[SQA-2061] Bridge - added example Python code to demonstrate WISCEBridge
[SQA-2122] Added Git submodule for STM32F4Cube for building example projects
[SQA-2122] Deprecated use of component versions - all references now to SDK version
[SQA-2057] wisce_script_converter - added option for C function output

Fixed Bugs:
[SQA-2282] L41 - Fixed bug in wake from hibernate

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v4.1.0
Date: 2021/04/30

Component Driver Versions:
CS35L41 - v4.1.0
CS40L25 - v2.3.0
CS47L15 - v2.1.0
CS40L30 - v0.1.0

Component Tool Versions:
firmware_converter - v3.2.0
wisce_script_converter - v1.2.0

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-2043] L15 - new FLL api
[SQA-1986] L15 - MP3 compressed upload
[SQA-1746] L41 - Add GPIO set
[SQA-1695] L25, L41, L30 - deprecated create_syscfg_regs.exe
[SQA-1695] L25, L41 - update register read/write API regmap functions public
[SQA-1695] L25 - update main.c to conform to appnote flowchart
[SQA-2080] firmware_converter - Automatically update correct year in copyright comments
[SQA-2123] Make fw_img files at compile time
[SQA-2248] L30 - deprecate control() API, update to latest FW Drop 37
fw_img: Rename fw_img_v1 files to fw_img
[SQA-2248] L30/L25 - fixed freertos main() ordering

Fixed Bugs:
[SQA-2042] L25 - fixed bug in cs40l25_power, cs40l25_update_haptic_config

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v3.1.0
Date: 2020/12/21

Component Driver Versions:
CS35L41 - v3.1.0
CS40L25 - v2.1.0
CS47L15 - v1.0.0

Component Tool Versions:
firmware_converter - v3.1.0
wisce_script_converter - v1.1.0

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-1936] fw_img: Add fw_img v2
[SQA-1977] Implement first release of CS47L15 driver
[SQA-1995] L41 - Implemented fast Fs switching

Fixed Bugs:
None

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v3.0.0
Date: 2020/10/19

Component Driver Versions:
CS35L41 - v3.0.0
CS40L25 - v2.0.0

Component Tool Versions:
firmware_converter - v3.0.0
wisce_script_converter - v1.0.0

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-1829] Fixed use of malloc in FreeRTOS example
[SQA-1869] L41 - Update errata per latest Linux driver B2 errata
[SQA-1870] Added WISCE script workflow - wisce_script_converter
[SQA-1872] firmware_converter - fw_img_v1 output header and source
[SQA-1874] L41 - BSP boot using separate fw_img for FW, TUNE, CAL
[SQA-1880] L41 - fixed BSP mixing/added set dig gain
[SQA-1880] L41 - read CAL_R even if failed
[SQA-1889] Standardized *_control() API and hardware register/firmware control access
[SQA-1889] L25 - Move haptic trigger/config code from BSP to driver
[SQA-1892] All drivers - added helpers, removed fa_list[]
[SQA-1893] firmware_converter - can specify sym-output
[SQA-1901] Created Extended Public API *_ext.h for algo-specific API
[SQA-1905] firmware_converter - added generic FW algo symbol
[SQA-1913] L41 - add Ext API to get GPI level
[SQA-1914] L25 - Bypass DSP if FW doesn't support I2S streaming
[SQA-1830] Changed the license sections to Apache 2.0

Fixed Bugs:
[SQA-1868] L41 - Fixed Calibration always return 0x2
[SQA-1870] Fix printf bug in create_syscfg_regs
[SQA-1896] L25 - Removed get_dsp_status unused cal data members
[SQA-1902] L25 - Fixed boot IRQMASKSEQ config
[SQA-1905] L25 - change I2S streaming to use CLAB instead of DF0_CLAB FW

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v2.2.0
Date: 2020/09/08

Component Driver Versions:
CS35L41 - v2.1.0
CS40L25 - v1.1.0

Component Tool Versions:
firmware_converter - v2.4.0

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-1899] firmware_converter - added exporting to JSON
[SQA-1900] firmware_converter - added cs47l66 memory map

Fixed Bugs:
None

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v2.1.0
Date: 2020/07/24

Component Driver Versions:
CS35L41 - v2.1.0
CS40L25 - v1.1.0

Component Tool Versions:
firmware_converter - v2.3.0

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-1831] Added otp_unpacker library to L41 codebase
[SQA-1827] Refactor common create_syscfg_regs code / Optimized I2C transactions when writing syscfg_regs
[SQA-1825] Consolidated common BSP source / Removed toggle_gpio from bsp_driver_if_t
[SQA-1705] firmware_converter - added binary output option for 'fw_img_v1'
[SQA-1839] firmware_converter - added WMDR-only output to 'fw_img_v1'
[SQA-1841] firmware_converter - add sym.h generation to 'fw_img_v1'
[SQA-1847] firmware_converter - added support for absolute addressing blocks


Fixed Bugs:
None

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v2.0.0
Date: 2020/06/30

Component Driver Versions:
CS35L41 - v2.0.0
CS40L25 - v1.0.0

Component Tool Versions:
firmware_converter - v2.2.0

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features/Changes:
[SQA-1813] L41 - Fully migrate to the 'minimal' architecture
[SQA-1795] L25 - fully convert driver to 'minimal' architecture
[SQA-1802] firmware_converter exports version and CLI call to header
[SQA-1806] L25 - Update to use fw_img_v1 for booting

Fixed Bugs:
[SQA-1798] firmware_converter crashes for Informational Text Block
[SQA-1793] L25 - field_access_set does not ack correctly

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v1.2.0
Date: 2020/06/12

Component Driver Versions:
CS35L41 - v1.2.0
CS40L25 - v0.2.0

Component Tool Versions:
firmware_converter - v2.0.1

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features:
[SQA-1706] Add Hibernation support in L41 driver

Fixed Bugs:
[SQA-1767] firmware_converter - fixed adding of suffix to header file

Changes:
None

=============================================================================
=============================================================================
Summary:
This is the release of Alt-OS Driver SDK v1.1.0
Date: 2020/05/22

Component Driver Versions:
CS35L41 - v1.1.0
CS40L25 - v0.2.0

Component Tool Versions:
firmware_converter - v2.0.0

Architectures/Compilers Used:
GNU Arm Embedded Toolchain: arm-none-eabi-gcc -mcpu=cortex-m4

New Features:
[SQA-1541] Prince-H driver - Can enter/exit Standby and Hibernation
[SQA-1558] Develop power() API
[SQA-1559] Add hibernation-related config to config structure
[SQA-1560] Add hibernation prep to boot()
[SQA-1567] Add handling of Prince-H events, including release from Haptic-Safe Mode
[SQA-1651] Add POWERONSEQUENCE support at config and runtime
[SQA-1722] Add support for Dynamic F0 and ReDC
[SQA-1726] Add support for CS40L25B DEVID

Fixed Bugs:
None

Changes:
None

=============================================================================