Release v2.0.0

Changes in v2.0.0:

🚀 Major Architectural Leap (Elsangithub Production Release)

This release represents a major evolutionary jump for the MediaTek MT7668 SDIO Wi-Fi driver, bringing it to full functional, throughput, and packaging parity with the acclaimed mt7663-driver ecosystem. The headline capability is the porting and introduction of Dedicated AP Mode (ap_mode / ap0), turning FiberHome HG680-FJ (Amlogic S905X2 / Meson G12A) TV boxes into enterprise-grade 5 GHz 802.11ac Hotspot Routers and Wi-Fi Repeaters.

Added

• Dedicated AP Mode & Modular Kernel Parameter (ap_mode):
  • Implemented dynamic runtime module parameter ap_mode in os/linux/gl_init.c:
    • ap_mode=0 (Default): Pure client station mode (wlan0 only). Zero overhead, maximum stability for general desktop/server deployments.
    • ap_mode=1: Dedicated SoftAP mode. Automatically registers and instantiates the virtual interface ap0 alongside wlan0 at driver probe time. Ideal for companion routing packages like mt7663-router-webui and standalone hostapd.
    • ap_mode=2: Dual AP mode (dual AP virtual interfaces).
    • ap_mode=3: P2P + AP concurrent mode.
  • Added configuration template file /etc/modprobe.d/mt7668.conf.
• Native SMP Multi-Core CPU Affinity in Kernel C (gl_kal.c):
  • Implemented set_cpus_allowed_ptr on hif_thread, rx_thread, and main_thread directly inside kernel thread entry points.
  • Automatically isolates all network traffic processing from CPU0 (cpumask_clear_cpu(0, &mask)), balancing worker threads dynamically across CPU 1, 2, and 3 to prevent CPU0 bottlenecks.
• FIFO Underflow & Overflow Fast-Path (nic/nic.c):
  • Implemented instant hardware interrupt acknowledgement and fast-path clearing for WASR_RX0_UNDER_FLOW, WASR_RX1_UNDER_FLOW, and WASR_TX1_OVER_FLOW.
  • Prevents SDIO bus stalls and chip panic resets (glResetTrigger) during heavy bidirectional traffic floods.
• Dynamic Hardware IRQ Balancing & RPS Rules:
  • Bundled /usr/lib/udev/wlan-irq-tune.sh and /etc/udev/rules.d/99-wlan-performance.rules.
  • Automatically migrates SDIO hardware interrupts (ffe03000.mmc) to CPU 2 and 3 (smp_affinity_list: 2,3).
  • Activates Receive Packet Steering (RPS mask e / 0b1110) on wlan0 to offload TCP/IP network stack processing to CPU 1, 2, and 3.
• Hard Dummy Bluetooth Driver Blacklist:
  • Enforced install btmtksdio /bin/true, install btmtk /bin/true, and in-tree mt76 driver blacklists in /etc/modprobe.d/blacklist-mt7668-bluetooth.conf to completely prevent SDIO bus collision on boot.
• Automatic Firmware Backup & Clean Firmware Bundle:
  • Bundled clean, verified firmware files in system/lib/firmware/ (EEPROM_MT7668.bin, TxPwrLimit_MT76x8.dat, WIFI_RAM_CODE_MT7668.bin, WIFI_RAM_CODE2_SDIO_MT7668.bin, mt7668_patch_e2_hdr.bin, wifi.cfg).
  • Added automated preinst safety routine creating /lib/firmware/backup_stock_mt7668/ before package extraction.
• Modern Debian Packaging Architecture (debian/):
  • Standardized versioned debian/ directory structure (control, preinst, postinst, prerm).
  • Automated DKMS self-healing in postinst (detects and cleans legacy versions, auto-rebuilds modpost if host glibc toolchain mismatches).
  • Automated CI/CD release workflow via GitHub Actions (.github/workflows/release.yml).

Changed

• Balanced Thermal Profile (wifi.cfg):
  • Fine-tuned queue loops (HifTxLoop 16, OsTxLoop 8) and disabled unnecessary VHT beamforming/STBC calculation for cooler daily operation (~53 °C).
• DKMS Configuration (dkms.conf):
  • Upgraded PACKAGE_VERSION to "2.0.0".
• Kernel 6.8+ & Modern Upstream Compatibility:
  • Updated cfg80211_cac_event signature handling in os/linux/gl_p2p_kal.c across Linux kernels (distinguishing 4-arg in 6.8+, 5-arg in 6.1..6.7, and 4-arg in 3.14..6.0).
  • Updated cfg80211_ch_switch_notify signature handling in mgmt/p2p_func.c to support puncturing bitmap parameters in Linux 6.8+ and 6.12+.
  • Safely guarded unexported kallsyms_on_each_symbol in os/linux/gl_kal.c on Linux 5.7+ when kernel CONFIG_LIVEPATCH is active.

Removed

• Pruned obsolete and unused .bak files from source tree (gl_init.c.bak, sdio.c.bak).

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