kernel/rv1106: M5 AIC8800 wifi/BT port — build-verified, capture recipe
Driver built into self-built 6.18 (=y): zImage 12.7MB + rv1106-warden.dtb build clean; System.map confirms aicbsp_sdio_driver, aicwf_sdio_driver, rwnx_cfg80211_ops linked with correct bsp->fdrv->btlpm initcall order (host nm/System.map — cross-nm/ar mis-list these, verify with System.map). Recipe captured (driver .c is vendor GPL source in the SDK, not duplicated): - kbuild/ — from-scratch in-tree Kconfig + Makefiles (bsp->fdrv->btlpm link order; tristate->default y; AIC_FW_PATH as a real Kconfig string symbol). - wifi-dt-block.dtsi — sdio_pwrseq (mmc-pwrseq-simple, reset gpio1 PA2) + &sdmmc (mmc@ffaa0000, supports-sdio, cap-sdio-irq, non-removable). - PORT-PROGRESS.md — full file->change log: ~30 timer/netdev renames, 7 cfg80211_ops signature deltas, link_id args, wakeup_source API rewrite, 49 bsp/fdrv symbol collisions renamed aicbsp_priv_*, rwnx_mesh restore. Firmware present on both oem_a+oem_b (/oem/usr/ko/aic8800dc_fw); on-hardware wlan0 verify next. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
This commit is contained in:
BFE Engineering
co-authored by
Claude Opus 4.8
Claude Opus 4.8
parent
f7f9648f2a
commit
6897c9f93e
@@ -23,6 +23,13 @@
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device_type = "memory";
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device_type = "memory";
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reg = <0x00000000 0x10000000>; /* 256 MiB */
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reg = <0x00000000 0x10000000>; /* 256 MiB */
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};
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};
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/* --- M5: AIC8800DC wifi/BT power sequencing --- */
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sdio_pwrseq: sdio-pwrseq {
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compatible = "mmc-pwrseq-simple";
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pinctrl-names = "default";
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reset-gpios = <&gpio1 RK_PA2 GPIO_ACTIVE_LOW>;
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};
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};
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};
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/* --- console --- */
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/* --- console --- */
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@@ -39,6 +46,22 @@
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status = "okay";
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status = "okay";
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};
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};
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/* --- M5: AIC8800DC wifi/BT SDIO (on &sdmmc, mmc@ffaa0000 — NOT &sdio) --- */
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&sdmmc {
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max-frequency = <50000000>;
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bus-width = <4>;
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cap-sd-highspeed;
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cap-sdio-irq;
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keep-power-in-suspend;
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non-removable;
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rockchip,default-sample-phase = <90>;
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supports-sdio;
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mmc-pwrseq = <&sdio_pwrseq>;
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pinctrl-names = "default";
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pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_bus4 &sdmmc0_det>;
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status = "okay";
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};
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/* --- batch 1: mainline peripherals (wire DT + config) --- */
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/* --- batch 1: mainline peripherals (wire DT + config) --- */
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&uart1 {
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&uart1 {
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status = "okay";
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status = "okay";
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@@ -0,0 +1,569 @@
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# AIC8800 WiFi+BT SDIO driver — 5.10 → 6.18 port plan
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Target: the M5 milestone of `../PORT-STATUS.md` / `../../docs/bringup.md` — port
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the AIC8800 SDIO WiFi+BT driver onto the self-built **Linux 6.18.46** kernel that
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already boots WardenOS on `warden-c8a3` (M0–M3 done; M4 display in progress). No
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plan44 code (per the 2026-08-23 decision in `bringup.md`) — this is a direct
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forward-port of our own vendor source, same method already proven for
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clk/pinctrl/mach/mmc.
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## 0. Source recommendation
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**Port from our own vendor SDK source**, not from any external fork:
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`flare-edge/sdk/sysdrv/drv_ko/wifi/aic8800dc/` (§1 below is the full map). This
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is not a default-to-what-we-have choice — it's the correct one on the evidence:
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- **Nothing more upstream exists.** AICSemi has no public upstream driver repo
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with a stable, discoverable URL, and there is no aic8800 code in Linux
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`staging` or any LKML patch series (mainline/staging status: **absent** —
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confirmed by a dedicated web-research pass; no counter-evidence found).
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There is nothing more "canonical" to port from than the vendor source we
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already have.
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- **Our tree already carries two hardware-verified fixes newer forks don't
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have**: the `queue_sz`-zero console-flood clamp
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(`flare-edge/*/sdk-patches/wifi/patches/0001-aic8800dc-no-zero-timeout-spin-and-ratelimit.patch`)
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and the SDIO-wakeup busy-spin→sleep Tier-1 hardening (live in the vendor tree
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today per `luckfox-pico-86-panel/wifi-bluetooth-aic8800.md`, tracked as
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`future-features-2/sdk-patches/wifi/patches/0002-aic8800dc-sdio-wakeup-sleep-not-spin.patch`
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— **not yet copied into this branch's `sdk-patches/`; carry both forward into
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the ported tree, and file the housekeeping gap separately**). Starting from a
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third-party fork would mean re-discovering and re-fixing both bugs on
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hardware.
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- **The vendor source already anticipates part of the delta.** `rwnx_compat.h`
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has `#if LINUX_VERSION_CODE` shims up to `KERNEL_VERSION(5, 15, 60)` — e.g.
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`rwnx_main.c`'s `net_device_ops` already switches between `.ndo_do_ioctl` and
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`.ndo_siocdevprivate` at the 5.15 boundary (rwnx_main.c:1457–1474). That
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removes one whole item from the delta checklist below at zero cost.
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- **A cleaner community fork exists but is not itself a base — it's a reference.**
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`radxa-pkg/aic8800` (github.com/radxa-pkg/aic8800) is an actively maintained,
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GPL-3.0, DKMS-packaged build of the same AICSemi driver family, explicitly
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patched for kernel **6.12/6.13** on Rockchip SDIO boards (Rock 3C/5C), and is
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the only community effort found that has already absorbed the post-5.15
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cfg80211/netdev/timer churn this port needs. **Use it the same way the
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pinctrl port used the upstream RV1106 patch series — as a correctness
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oracle to diff against**, not as code we vendor: it targets AIC8800D80 SDIO/USB/PCIe
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variants generically, not our AIC8800DC + our two local hardening patches,
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and an Armbian forum thread reports open regressions on it at the 6.12+
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boundary — so treat its fixes as a second opinion on the wiphy-lock and
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timer-rename hunks, verify each independently.
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- **No mainline/staging path exists to lean on instead.** Confirmed by the
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research pass: no aic8800 in `drivers/net/wireless/`, `staging/`, or any
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LKML series. This matches the driver-parity table's row (`AIC8800 wifi
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(bsp/fdrv) | out-of-tree`) and the bring-up doc's framing: "AIC8800 wifi
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(plan44 has none; ours)."
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## 1. SDK source map
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Vendor tree root: `flare-edge/sdk/sysdrv/drv_ko/wifi/aic8800dc/` (an **out-of-tree**
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external-module build against `KDIR := ../../../source/kernel`, i.e. the vendor
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5.10.160 tree at `flare-edge/sdk/sysdrv/source/kernel/`). Selected by
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`RK_ENABLE_WIFI_CHIP=AIC8800DC` in
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`flare-edge/sdk/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Buildroot-RV1106_Luckfox_Pico_86Panel-IPC.mk:138`,
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dispatched by `sdk/sysdrv/drv_ko/wifi/Makefile`'s `build-sdio` target
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(`ifneq ($(findstring $(RK_ENABLE_WIFI_CHIP),"AIC8800DC"),) @make -C aic8800dc/`).
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`88,601` total lines across the three sub-drivers.
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```
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aic8800dc/
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Kconfig # AIC_WLAN_SUPPORT, AIC_FW_PATH (default "/oem/usr/ko/aic8800dc_fw")
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# sources drivers/net/wireless/aic8800/{aic8800_fdrv,aic8800_btlpm}/Kconfig
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# -- note this path is ALREADY the mainline drivers/net/wireless/
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# convention; the vendor Kconfig assumes it, easing the in-tree move.
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Makefile # obj-$(CONFIG_AIC8800_BTLPM_SUPPORT) += aic8800_btlpm/
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# obj-$(CONFIG_AIC8800_WLAN_SUPPORT) += aic8800_fdrv/
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# obj-$(CONFIG_AIC_WLAN_SUPPORT) += aic8800_bsp/
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# (link order = bsp, fdrv, btlpm — matches the insmod order below)
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aic8800_bsp/ # SDIO bus glue + firmware bootstrap ("bsp" = board support package)
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aic_bsp_main.c # module_init/exit; per-chip firmware filename tables (fw_u02,
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# fw_8800dc_u01, fw_8800dc_u02, ...); aicbsp_probe_semaphore
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aicsdio.c # struct sdio_driver aicbsp_sdio_driver; SDIO_DEVICE_CLASS(WLAN)
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# wildcard match + internal vendor/device ID probe:
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# SDIO_VENDOR_ID_AIC8800DC=0xc8a1, SDIO_DEVICE_ID_AIC8800DC=0xc08d
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# (aicsdio.c:75,80); calls rockchip_wifi_power()/
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# rockchip_wifi_set_carddetect() (aicsdio.c:515-580) — see §3.7
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aic8800dc_compat.c/.h, aic8800d80_compat.c/.h # per-chip-variant glue
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aicwf_txq_prealloc.c, md5.c, aic_bsp_driver.c/.h, aicwf_firmware_array.c/.h
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aic8800_fdrv/ # the actual cfg80211 full-MAC driver ("fdrv" = fullmac driver)
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rwnx_main.c # struct cfg80211_ops rwnx_cfg80211_ops (line 5365); wiphy_new()
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# (5732), wiphy_register() (6035); struct net_device_ops
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# rwnx_netdev_ops (1457) / rwnx_netdev_monitor_ops (1477);
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# 3 rtnl_lock()/rtnl_unlock() pairs (5429,6063,6097)
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rwnx_msg_rx.c # firmware→driver event handling incl. cfg80211_connect_result()
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# (line 958) and cfg80211_roamed() (1006,1010)
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rwnx_cfgfile.c, rwnx_tx.c, rwnx_rx.c, rwnx_txq.c # datapath
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aicwf_sdio.c # the actual SDIO transport (`aicwf_sdio_driver`, line 1216) —
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# THIS is the file the task's "aicwf_sdio" driver name refers to;
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# it lives inside aic8800_fdrv/, not a separate directory. Also
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# calls rockchip_wifi_power()/set_carddetect() (1260-1331) and
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# contains the Tier-1 wakeup-sleep hardening (§0) around the
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# `aicwf_sdio_wakeup()` retry loop (~line 1363 in the older
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# line numbering cited by the wiki; grep for `usleep_range`).
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aicwf_tcp_ack.c, aicwf_rx_prealloc.c, aic_priv_cmd.c, aic_vendor.c
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rwnx_compat.h # vendor compat shim layer, #if LINUX_VERSION_CODE guards up to
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# 5.15.60 ONLY — everything past that (timer renames, wiphy
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# locking, netif_rx_ni removal) is new territory, not covered.
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usb_host.c/.h, rwnx_pci.*, rwnx_mesh.* # dead code on this board (no USB/PCI variant used)
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aic8800_btlpm/ # Bluetooth low-power-mode / HCI wake companion module
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aic8800_btlpm.c, aic_bluetooth_main.c, lpm.c, rfkill.c # standard rfkill_register(), no
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# Rockchip-specific RFKILL_RK dependency (checked, none found)
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aic8800dc_fw/ # firmware blobs, see §5
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```
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**Modules actually `insmod`ed on the running 5.10 panel** (from
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`sdk/sysdrv/drv_ko/wifi/insmod_wifi.sh:109-124`, the `#aic8800` stanza gated on
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`/proc/device-tree/model` containing `"W"` or an SDIO uevent match):
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```
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cfg80211.ko → libarc4.ko → ctr.ko → ccm.ko → libaes.ko → aes_generic.ko
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→ aic8800_bsp.ko (sleep 0.2s) → aic8800_fdrv.ko (sleep 2s) → aic8800_btlpm.ko (sleep 0.1s)
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```
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`rkwifi_server` is deliberately never started (WardenOS owns `wlan0` directly —
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see `insmod_wifi.sh:126-137` and `wifi-bluetooth-aic8800.md`); nothing to
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replicate there. The crypto modules (arc4/ctr/ccm/aes) are dependencies of the
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driver's internal key-handling, not aic8800-specific — confirm they're already
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`=y`/reachable in the 6.18 config (crypto is currently listed as "⬜ batch2" in
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`../DRIVER-PARITY.md`; flip alongside this work).
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**DT node — correction to the task's framing.** The task description assumed
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`sdio: mmc@ff9a0000`. **That is wrong for this board.** The AIC8800 is wired to
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**`sdmmc: mmc@ffaa0000`** (mmc1), not `sdio: mmc@ff9a0000` (mmc2) — confirmed
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directly in `rv1106g-luckfox-pico-86panel.dts:83-97` (comment literally reads
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`/**********SDIO-WIFI**********/` over the `&sdmmc` node) and independently in
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`luckfox-pico-86-panel/wifi-bluetooth-aic8800.md:11`/`hardware-86-panel.md:69`.
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`&sdio` (mmc@ff9a0000) stays `status = "disabled"` and is unused on this board.
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There is **no separate DT child node** for the aic8800 chip itself — it's
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discovered purely by SDIO bus-scan + vendor/device ID match inside the driver
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(`aicsdio.c`, no `of_match_table` anywhere in the tree — checked, none found);
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the only DT surface is the MMC controller node plus the power-sequencing node:
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```dts
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sdio_pwrseq: sdio-pwrseq { /* rv1106g-luckfox-pico-86panel.dts:20-23 */
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compatible = "mmc-pwrseq-simple";
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reset-gpios = <&gpio1 RK_PA2 GPIO_ACTIVE_LOW>;
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};
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&sdmmc { /* rv1106g-luckfox-pico-86panel.dts:83-97 */
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max-frequency = <50000000>;
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bus-width = <4>;
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cap-sd-highspeed;
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cap-sdio-irq;
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keep-power-in-suspend;
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non-removable;
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rockchip,default-sample-phase = <90>;
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supports-sdio;
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mmc-pwrseq = <&sdio_pwrseq>;
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pinctrl-names = "default";
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pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_bus4 &sdmmc0_det>;
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status = "okay";
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};
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```
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The `sdmmc0_{clk,cmd,bus4,det}` pin groups are defined in
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`sdk/sysdrv/source/kernel/arch/arm/boot/dts/rv1106-pinctrl.dtsi:700-731` (a
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separate include from `rv1106.dtsi`) — port that block, it isn't in the DT
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files the M1–M3 work already ported.
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## 2. Open-source landscape (web research)
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- **AICSemi upstream**: no discoverable, stable public GitHub org/repo carrying
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aic8800_bsp/fdrv/btlpm as canonical upstream — vendor releases exist only
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as SoC-vendor SDK drops (Rockchip's, in our case). Nothing more upstream to
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point at than what we have.
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- **Mainline/staging**: **absent.** No aic8800 anywhere in `drivers/net/wireless/`,
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`drivers/staging/`, or any LKML/patchwork series as of this research pass.
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- **Cleanest newer-kernel fork found**: `radxa-pkg/aic8800`
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(github.com/radxa-pkg/aic8800) — actively maintained, GPL-3.0, DKMS-packaged,
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patched for kernel **6.12/6.13** on Rockchip SDIO boards (Radxa Rock 3C/5C),
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covering SDIO/USB/PCIe AIC8800D80 variants. Firmware ships as a companion
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`aic8800-firmware` package into `/lib/firmware/aic8800_fw/`. Treat as a
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**reference/oracle for the API-delta hunks** (§3), not a vendoring source —
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see §0 for why. An Armbian forum thread ("AIC8800 wifi sdio module not
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working with kernel 6.12+") reports it has its own open regressions at that
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boundary, so cross-check rather than trust each hunk blindly.
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- **Other community efforts** (Armbian, LuckFox's own OpenWrt branch, generic
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BananaPi/OpenWrt feeds): no aic8800 kmod bundled by default even where the DT
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wiring exists — `luckfox-pico-86-panel/alternative-bsps.md:20` documents this
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exact gap for LuckFox's own OpenWrt target (`cortexa7.mk` ships `kmod-rknpu-rockchip`
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only, no `kmod-aic8800`). Confirms there is no ready-made newer-kernel package
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to pull instead of porting.
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- **plan44's OpenWrt RV1106 fork** (`flare-edge/research/plan44-openwrt/`,
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Linux 6.6, 152 RV1106 patches): checked directly — **contains no aic8800
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code at all** (`find ... -ipath '*aic8800*'` empty). Confirms
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`bringup.md`'s "AIC8800 wifi (plan44 has none; ours)" and the "no plan44
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code" decision doesn't cost us anything here — there's nothing to take.
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## 3. 5.10 → 6.18 API-delta checklist
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Grounded in two passes: (a) direct kernel.org/bootlin/LWN research on 5.10→6.18
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API history, (b) `grep` evidence from the actual vendor source (file:line cited
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below) so this is a checklist against *our* code, not a generic survey.
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### 3.1 Timers — confirmed hard breaks, exact call sites found
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`del_timer_sync`/`del_timer` → **`timer_delete_sync`/`timer_delete`**: renamed
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in `9b13df3fb64e` (landed v6.2-rc1) as a **compat-wrapped** rename; **the
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compat wrapper was removed in v6.15-rc1**, so by 6.18 the old names **do not
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exist**. `from_timer()` → **`timer_container_of()`**: a real mainline rename
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(~6.14–6.15 treewide timer-API cleanup; exact tag unconfirmed, verify against
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the actual 6.18.46 headers already unpacked at
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`flare-edge/research/linux-6.18.46/include/linux/timer.h`). Every call site in
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the driver, found by direct grep (not estimated):
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| API | File:line(s) |
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|---|---|
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||||||
|
| `from_timer()` | `aic8800_bsp/aicsdio.c:1442`; `aic8800_fdrv/aicwf_sdio.c:279,317,2933`; `aic8800_fdrv/rwnx_main.c:1724`; `aic8800_fdrv/rwnx_rx.c:1751,2027` |
|
||||||
|
| `del_timer_sync()` | `aic8800_bsp/aicsdio.c:1677`; `aic8800_fdrv/aicwf_sdio.c:1048,1054,1297,1303,3152`; `aic8800_fdrv/rwnx_main.c:2181`; `aic8800_fdrv/rwnx_rx.c:1501,1526` |
|
||||||
|
| `del_timer()` (non-sync) | `aic8800_fdrv/aicwf_tcp_ack.c:108,367,401,462`; `aic8800_fdrv/rwnx_rx.c:1921,2607`; `aic8800_btlpm/aic8800_btlpm.c:580,603,951`; `aic8800_btlpm/lpm.c:558,581,935` |
|
||||||
|
| `setup_timer()` (pre-4.14 dead branch) | `aic8800_fdrv/aicwf_tcp_ack.c:84` — already `#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)` guarded against a live `timer_setup()` branch; **delete the dead `#if` branch**, don't port it |
|
||||||
|
| `timer_setup()` calls (unaffected, just listed for completeness) | `aicsdio.c:2059`; `aicwf_sdio.c:3564,3589,3590`; `rwnx_main.c:1841,6118`; `rwnx_rx.c:1433,2510`; `aicwf_tcp_ack.c:87`; both btlpm files:1104/1054 |
|
||||||
|
|
||||||
|
Mechanical fix: sed-rename `from_timer`→`timer_container_of`, `del_timer_sync`→
|
||||||
|
`timer_delete_sync`, `del_timer`→`timer_delete` across the ~20 call sites above.
|
||||||
|
`timer_setup()` itself is unchanged.
|
||||||
|
|
||||||
|
### 3.2 netdev
|
||||||
|
- **`ndo_do_ioctl` removal (~6.7-era, split into `ndo_eth_ioctl`/`ndo_siocdevprivate`
|
||||||
|
around 5.14/5.15)**: **already handled** by the vendor. `rwnx_main.c:1457-1474`
|
||||||
|
already has `#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 15, 0)` /
|
||||||
|
`#else .ndo_siocdevprivate = rwnx_do_ioctl,` for both `rwnx_netdev_ops` and
|
||||||
|
`rwnx_netdev_monitor_ops`. Zero work needed — the guard picks the 6.18-correct
|
||||||
|
member automatically. **Verify only** that `rwnx_do_ioctl`'s body (line 1368)
|
||||||
|
still compiles against the `ndo_siocdevprivate` signature
|
||||||
|
(`int (*)(struct net_device *, struct ifreq *, void __user *, int)` vs the
|
||||||
|
old ioctl signature) — check on the actual 6.18.46 headers.
|
||||||
|
- **`netif_rx_ni()` removed (5.18, merged into plain `netif_rx()`, safe from any
|
||||||
|
context)**: three call sites, **not** version-guarded: `rwnx_rx.c:404,598,1651`.
|
||||||
|
Mechanical fix: `netif_rx_ni(rx_skb)` → `netif_rx(rx_skb)`.
|
||||||
|
- **`netif_napi_add()` weight arg dropped (~6.1)**: **not used** anywhere in
|
||||||
|
this driver (checked, no `netif_napi_add`/NAPI in the tree — the driver does
|
||||||
|
its own kthread-based RX processing, not NAPI polling). No action.
|
||||||
|
|
||||||
|
### 3.3 cfg80211 — the hard, non-mechanical part
|
||||||
|
**Verified directly against `flare-edge/research/linux-6.18.46/include/net/cfg80211.h`**
|
||||||
|
(the actual target tree, not a guess from release notes):
|
||||||
|
- **`cfg80211_connect_result()`**: **confirmed unchanged and safe.** In 6.18.46
|
||||||
|
it's a `static inline` that just forwards to `cfg80211_connect_bss()`
|
||||||
|
(`cfg80211.h:8654-8661`), with the exact same 8-argument signature the driver
|
||||||
|
already calls at `rwnx_msg_rx.c:958`. `cfg80211_roamed()` — also **confirmed
|
||||||
|
unchanged**: 6.18.46 signature is
|
||||||
|
`cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info, gfp_t gfp)`
|
||||||
|
(`cfg80211.h:8748`), matching the driver's call at `rwnx_msg_rx.c:1006,1010`
|
||||||
|
(`cfg80211_roamed(dev, &info, GFP_ATOMIC)` against a local
|
||||||
|
`struct cfg80211_roam_info info`). **No code change required here**; migrating to
|
||||||
|
`cfg80211_connect_bss()` directly is optional cleanup, not a requirement.
|
||||||
|
- **`wiphy_new()`/`wiphy_new_nm()`**: **confirmed unchanged.**
|
||||||
|
`wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)`
|
||||||
|
(`cfg80211.h:6250-6253`, inline wrapper over `wiphy_new_nm(ops, sizeof_priv, NULL)`)
|
||||||
|
— matches `rwnx_main.c:5732`'s `wiphy_new(&rwnx_cfg80211_ops, sizeof(struct rwnx_hw))`
|
||||||
|
exactly. No signature-driven work needed.
|
||||||
|
- **Wiphy locking overhaul — real, confirmed present, and now precisely scoped
|
||||||
|
(not a guess).** `cfg80211.h` (~6266, 6325-6362) confirms `wiphy_lock()`/
|
||||||
|
`wiphy_unlock()`/`lockdep_assert_wiphy()` and a `struct wiphy_work` deferred-work
|
||||||
|
mechanism all exist in 6.18.46, and — the load-bearing sentence, directly
|
||||||
|
from the `wiphy_lock()` doc comment — **"When cfg80211 ops are called, the
|
||||||
|
wiphy is already locked."** That means:
|
||||||
|
- The driver's `cfg80211_ops` callbacks themselves (`rwnx_cfg80211_scan`,
|
||||||
|
`_connect`, `_disconnect`, `_add_key`, `_mgmt_tx`, etc., `rwnx_main.c:5365-5382`)
|
||||||
|
need **no new locking** — cfg80211 core now takes the wiphy mutex before
|
||||||
|
calling into any of them, where 5.10-era cfg80211 relied on the caller
|
||||||
|
holding RTNL instead.
|
||||||
|
- The real risk is the **other direction**: this driver calls
|
||||||
|
`cfg80211_scan_done()` / `cfg80211_connect_result()` / `cfg80211_roamed()`
|
||||||
|
from **firmware-event handling, not from inside an ops callback** —
|
||||||
|
`rwnx_msg_rx.c` (async, driven by SDIO RX) and `rwnx_main.c:1212,2082,2168`
|
||||||
|
(also async paths, not the ops entry points). Multiple `cfg80211.h` doc
|
||||||
|
comments for adjacent notification APIs state "the caller must hold ...
|
||||||
|
wiphy mutex" (e.g. `cfg80211.h:9428`: "Caller must hold wiphy mutex,
|
||||||
|
therefore must only be called from sleepable context") — the pattern that
|
||||||
|
replaced the old "hold RTNL" requirement. **Concretely: every
|
||||||
|
`cfg80211_*` notification call reached from `rwnx_msg_rx.c` /
|
||||||
|
the async paths in `rwnx_main.c` needs `wiphy_lock(wiphy)` /
|
||||||
|
`wiphy_unlock(wiphy)` wrapped around it that wasn't there before** (5.10
|
||||||
|
only needed `rtnl_lock()`, which this driver's 3 existing
|
||||||
|
`rtnl_lock()`/`rtnl_unlock()` sites at `rwnx_main.c:5429/5433,
|
||||||
|
6063/6075, 6097/6102` already show it knows how to take defensively — the
|
||||||
|
fix is adding the wiphy-mutex equivalent at the async notification sites,
|
||||||
|
not at those 3 sites, which are netdev-registration paths and likely stay
|
||||||
|
RTNL-only).
|
||||||
|
- This is still the single highest-effort item in the port — not because the
|
||||||
|
contract is unknown (it's now confirmed above), but because applying it
|
||||||
|
correctly means auditing every async→cfg80211 call site in `rwnx_msg_rx.c`
|
||||||
|
and the async branches of `rwnx_main.c` (1212, 2082, 2168, 2445-2645) one
|
||||||
|
by one, and because a wrong lock order (wiphy mutex vs. RTNL vs. this
|
||||||
|
driver's own internal locks/semaphores) produces lockdep splats or
|
||||||
|
deadlocks that only show up under real traffic, not at compile time. Cross-
|
||||||
|
check each hunk against how `radxa-pkg/aic8800` (§0) handled the same
|
||||||
|
transition on its 6.12/6.13 port — it hit this exact wall first.
|
||||||
|
|
||||||
|
### 3.4 SDIO/MMC
|
||||||
|
No breaking changes found in `sdio_driver`, `sdio_claim_host`/`release_host`,
|
||||||
|
`sdio_readb`/`writesb`, `sdio_set_block_size` between 5.10 and 6.18 (low
|
||||||
|
research depth on this axis — treat as low-risk, smoke-test rather than
|
||||||
|
line-audit). The mainline `dw_mmc`/`dw_mmc-rockchip` host driver is already
|
||||||
|
proven on 6.18 for eMMC (`../DRIVER-PARITY.md`: `dw_mmc (eMMC) | mainline | ✅ M3`)
|
||||||
|
and `CONFIG_MMC_DW_ROCKCHIP=y` is already in the live `.config` — the SDIO
|
||||||
|
*controller* side of this port is de-risked; only the AIC8800 *card driver*
|
||||||
|
above the `sdmmc` bus is new work.
|
||||||
|
|
||||||
|
### 3.5 proc_ops
|
||||||
|
`file_operations`→`proc_ops` for procfs landed in **5.6** — already true at the
|
||||||
|
5.10 baseline this driver was written against, and no further proc_ops changes
|
||||||
|
were found 5.10→6.18. The three files using `proc_ops`/`proc_create`
|
||||||
|
(`aicwf_sdio.c`, `aic8800_btlpm.c`, `lpm.c`) should need no change here.
|
||||||
|
|
||||||
|
### 3.6 DMA
|
||||||
|
No breaking coherent/streaming DMA API changes found 5.10→6.18 relevant to this
|
||||||
|
driver; SDIO drivers ride MMC-core DMA rather than calling
|
||||||
|
`dma_alloc_coherent`/`dma_map_single` directly for the card-side data path.
|
||||||
|
Low risk, not independently line-audited — flag if the build surfaces anything.
|
||||||
|
|
||||||
|
### 3.7 Vendor/Rockchip-only helpers — real mainline gap, not a version delta
|
||||||
|
`rockchip_wifi_power()` / `rockchip_wifi_set_carddetect()` (declared in
|
||||||
|
`include/linux/rfkill-wlan.h`, implemented in `net/rfkill/rfkill-wlan.c` in the
|
||||||
|
**vendor 5.10 tree only** — this is a Rockchip-BSP-vendor subsystem, not
|
||||||
|
mainline Linux, and does not exist in `flare-edge/research/linux-6.18.46/`).
|
||||||
|
Call sites: `aic8800_bsp/aicsdio.c:515,517,556,580` and
|
||||||
|
`aic8800_fdrv/aicwf_sdio.c:1260,1262,1329,1331` (all under
|
||||||
|
`#ifdef CONFIG_PLATFORM_ROCKCHIP`, which is true for this board). **This is not
|
||||||
|
a rename — there is nothing to rename to.** Recommended fix: **stub these
|
||||||
|
calls out entirely** rather than port `rfkill-wlan.c`. The DT already declares
|
||||||
|
a standard mainline `mmc-pwrseq-simple` (`sdio_pwrseq`, §1) bound via
|
||||||
|
`mmc-pwrseq = <&sdio_pwrseq>`, which the mainline MMC core already drives at
|
||||||
|
bus-scan/power-up time through `drivers/mmc/core/pwrseq_simple.c` — a real
|
||||||
|
mainline mechanism doing the same job (GPIO power/reset sequencing) these
|
||||||
|
vendor calls were a pre-DT-pwrseq-era stand-in for. `rockchip_wifi_set_carddetect()`
|
||||||
|
is likewise redundant for a `non-removable` MMC device, which mainline already
|
||||||
|
auto-rescans. Treat every call site as `#if 0`/deleted, not ported.
|
||||||
|
`get_cpu_version`/`rockchip_soc_id`-style helpers: **not called anywhere** in
|
||||||
|
this driver (checked, no hits) — the task's assumption that this driver calls
|
||||||
|
such a helper does not hold; no action needed. `module_param`, `kthread_run`/
|
||||||
|
`kthread_should_stop`: stable, unaffected — used extensively (RX/TX kthreads in
|
||||||
|
`aicwf_sdio.c`), no changes needed.
|
||||||
|
|
||||||
|
### 3.8 Firmware loading
|
||||||
|
`request_firmware`/`request_firmware_nowait`/`release_firmware`: stable
|
||||||
|
5.10→6.18, no signature changes found. Note this driver's actual firmware load
|
||||||
|
path is `AIC_FW_PATH`-relative direct file read via its own loader
|
||||||
|
(`aic_load_fw`/`CONFIG_USE_FW_REQUEST` is `?= n` in the Makefile — the vendor
|
||||||
|
driver does **not** use the standard `request_firmware()` API by default, it
|
||||||
|
reads firmware files from a configurable path itself). Confirm this stays true
|
||||||
|
after the port; it's a deliberate vendor choice, not a version-driven gap.
|
||||||
|
|
||||||
|
## 4. File / config / DT port plan
|
||||||
|
|
||||||
|
### 4.1 Files to bring into the 6.18 tree
|
||||||
|
Copy `aic8800dc/{aic8800_bsp,aic8800_fdrv,aic8800_btlpm}/*.{c,h}` (source only —
|
||||||
|
exclude every generated `.o`/`.ko`/`.mod.*`/`.cmd`/`Module.symvers`/
|
||||||
|
`modules.order` artifact already sitting in the vendor tree from prior
|
||||||
|
out-of-tree builds) into the 6.18 tree at:
|
||||||
|
```
|
||||||
|
flare-edge/research/linux-6.18.46/drivers/net/wireless/aic8800/
|
||||||
|
Kconfig # new: top-level "source" wrapper, see 4.2
|
||||||
|
Makefile # obj-y for the 3 subdirs, preserving bsp→fdrv→btlpm link order
|
||||||
|
aic8800_bsp/ (from aic8800dc/aic8800_bsp/)
|
||||||
|
aic8800_fdrv/ (from aic8800dc/aic8800_fdrv/, minus usb_host.c/rwnx_pci.*/rwnx_mesh.* — dead
|
||||||
|
code on this board's SDIO-only, non-mesh config; keep out unless a build
|
||||||
|
error proves them referenced elsewhere)
|
||||||
|
aic8800_btlpm/ (from aic8800dc/aic8800_btlpm/)
|
||||||
|
```
|
||||||
|
This is exactly the path the vendor's own `Kconfig` already assumes
|
||||||
|
(`source "drivers/net/wireless/aic8800/aic8800_fdrv/Kconfig"`, §1) — no path
|
||||||
|
rewriting needed inside the sub-Kconfigs. Firmware blobs (§5) go to
|
||||||
|
`aic8800dc_fw/` under the rootfs firmware path, not into the kernel tree.
|
||||||
|
|
||||||
|
Apply, in this order, on top of the copied source: the `0001` queue_sz clamp
|
||||||
|
patch, and the Tier-1 SDIO-wakeup-sleep patch (currently only tracked under
|
||||||
|
`flare-edge/future-features-2/sdk-patches/wifi/patches/0002-aic8800dc-sdio-wakeup-sleep-not-spin.patch`
|
||||||
|
— pull it from there; it is *not* in this branch's own `sdk-patches/wifi/`, a
|
||||||
|
separate housekeeping gap worth closing regardless of this port). Then apply
|
||||||
|
the API-delta fixes from §3.
|
||||||
|
|
||||||
|
### 4.2 Kconfig wiring
|
||||||
|
Add one line to `flare-edge/research/linux-6.18.46/drivers/net/wireless/Kconfig`
|
||||||
|
(alongside the existing `source "drivers/net/wireless/broadcom/Kconfig"` etc.
|
||||||
|
list, `Kconfig:22-38`):
|
||||||
|
```
|
||||||
|
source "drivers/net/wireless/aic8800/Kconfig"
|
||||||
|
```
|
||||||
|
New `drivers/net/wireless/aic8800/Kconfig` — carry the vendor's `aic8800dc/Kconfig`
|
||||||
|
content forward nearly verbatim (it already has the right shape: an
|
||||||
|
`AIC_WLAN_SUPPORT` bool gate, an `AIC_FW_PATH` string default, and `source`
|
||||||
|
lines for the fdrv/btlpm sub-Kconfigs) but change the two `tristate` symbols in
|
||||||
|
`aic8800_fdrv/Kconfig` (`AIC8800_WLAN_SUPPORT`) and `aic8800_btlpm/Kconfig`
|
||||||
|
(`AIC8800_BTLPM_SUPPORT`) to **default `y`**, and set `AIC_WLAN_SUPPORT`
|
||||||
|
default `y` — per the task's requirement, everything built in, not modular,
|
||||||
|
since the 6.18 rootfs has no working module-loading pipeline yet
|
||||||
|
(`../PORT-STATUS.md` M3 note: the old 5.10 `.ko`s already fail on 6.18 from
|
||||||
|
vermagic mismatch, and a rebuilt 6.18 module tree for Buildroot doesn't exist
|
||||||
|
yet either).
|
||||||
|
|
||||||
|
### 4.3 Config symbols (`=y`, built-in)
|
||||||
|
```
|
||||||
|
CONFIG_WIRELESS=y # already =y in the live 6.18 .config
|
||||||
|
CONFIG_CFG80211=y # already =y — flipped in "batch2" per ../DRIVER-PARITY.md
|
||||||
|
CONFIG_WLAN=y # already =y
|
||||||
|
CONFIG_MMC=y # already =y
|
||||||
|
CONFIG_MMC_DW_ROCKCHIP=y # already =y
|
||||||
|
CONFIG_RFKILL=y # already =y
|
||||||
|
CONFIG_AIC_WLAN_SUPPORT=y # new
|
||||||
|
CONFIG_AIC8800_WLAN_SUPPORT=y # new
|
||||||
|
CONFIG_AIC8800_BTLPM_SUPPORT=y # new
|
||||||
|
CONFIG_BT=y # currently =m in the live .config — flip to =y for the same
|
||||||
|
# no-working-module-pipeline reason as the aic8800 pieces
|
||||||
|
CONFIG_BT_HCIUART=y # currently =m — flip alongside CONFIG_BT
|
||||||
|
CONFIG_BT_HCIUART_H4=y # already =y (H4 is the transport this board's BT actually uses,
|
||||||
|
# per hardware-86-panel.md: UART1/ttyS1, hciattach -s 1500000
|
||||||
|
# ... any 1500000 flow nosleep)
|
||||||
|
CONFIG_CRYPTO_ARC4=y CONFIG_CRYPTO_CTR=y CONFIG_CRYPTO_CCM=y CONFIG_CRYPTO_AES=y # driver's
|
||||||
|
# internal key-handling deps, currently "⬜ batch2" in
|
||||||
|
# ../DRIVER-PARITY.md — confirm =y, not =m, alongside this work
|
||||||
|
```
|
||||||
|
Do **not** enable `CONFIG_MAC80211` for this driver — confirmed by source
|
||||||
|
inspection (§3.3 note, no `ieee80211_hw`/mac80211 symbol usage anywhere in
|
||||||
|
`aic8800_fdrv/`) that this is a pure `cfg80211_ops` full-MAC driver; mac80211
|
||||||
|
was only ever needed for the *other* vendor WiFi chips in the shared
|
||||||
|
`sdk/sysdrv/drv_ko/wifi/` tree (RTL8189FS etc.), not this one. Leaving it out
|
||||||
|
avoids pulling in a subsystem this port doesn't need. Do **not** carry
|
||||||
|
`CONFIG_RFKILL_RK` — confirmed unused (`aic8800_btlpm/rfkill.c` calls the
|
||||||
|
standard mainline `rfkill_register()`, no Rockchip-specific rfkill hook).
|
||||||
|
|
||||||
|
### 4.4 DT changes
|
||||||
|
On the board DT that M4/M5 work extends
|
||||||
|
(`warden-sdk/kernel/rv1106-enablement/dts/rv1106-warden.dts` or its successor —
|
||||||
|
follow the pattern of the M3 `&emmc` addition in `rv1106-warden-m2.dts:126-142`):
|
||||||
|
1. Port the `sdmmc0_{clk,cmd,bus4,det}` pinctrl group from
|
||||||
|
`sdk/sysdrv/source/kernel/arch/arm/boot/dts/rv1106-pinctrl.dtsi:700-731`
|
||||||
|
(not yet in the ported tree — M1–M3 only needed the eMMC/uart2/eth pin
|
||||||
|
groups).
|
||||||
|
2. Add the `sdmmc: mmc@ffaa0000` node (clocks `HCLK_SDMMC`/`CCLK_SRC_SDMMC` off
|
||||||
|
`&cru`, `SCLK_SDMMC_DRV`/`SCLK_SDMMC_SAMPLE` off `&grf_cru` — the same
|
||||||
|
`grf_cru` dependency the M2 eMMC fix already established, so no new
|
||||||
|
prerequisite) and the `sdio_pwrseq` node, both transplanted verbatim from
|
||||||
|
§1's block (interrupt `GIC_SPI 52`, per `rv1106.dtsi:1403-1412` in the
|
||||||
|
vendor tree).
|
||||||
|
3. `status = "okay"` on `&sdmmc`, matching the vendor board DT exactly (§1).
|
||||||
|
4. **Do not** touch `&sdio` (mmc@ff9a0000) — leave `disabled`, it's genuinely
|
||||||
|
unused hardware on this board (§1 correction).
|
||||||
|
|
||||||
|
### 4.5 Driver init-order note
|
||||||
|
The 5.10 module load order (`insmod_wifi.sh`, §1) is
|
||||||
|
`aic8800_bsp → (200ms) → aic8800_fdrv → (2s!) → aic8800_btlpm`, with real sleep
|
||||||
|
delays between each. Built-in (`=y`), there is no equivalent explicit delay —
|
||||||
|
initcall order is controlled by link order (the vendor Makefile's `obj-y` list
|
||||||
|
is already `aic8800_btlpm/ aic8800_fdrv/ aic8800_bsp/` in Makefile-declaration
|
||||||
|
order but Kbuild links `obj-y` in Makefile order regardless of which appears
|
||||||
|
first in the `ifeq` block — **preserve `aic8800_bsp` before `aic8800_fdrv`
|
||||||
|
before `aic8800_btlpm` in the new `drivers/net/wireless/aic8800/Makefile`'s
|
||||||
|
`obj-y` list**, mirroring the working insmod order) and by each subsystem's
|
||||||
|
declared `module_init()`/initcall level (all three currently use plain
|
||||||
|
`module_init()`, which becomes `device_initcall` level when built-in — same
|
||||||
|
level for all three, so link order is what decides relative sequencing among
|
||||||
|
them). The observed 2-second gap between `aic8800_bsp` and `aic8800_fdrv` on
|
||||||
|
the running 5.10 system is suspicious enough (firmware download + chip
|
||||||
|
bring-up time) that if the built-in probe races ahead of firmware readiness,
|
||||||
|
watch for it specifically during bring-up (§6) — this is a real risk the
|
||||||
|
static-link change introduces that modular loading didn't have, not just a
|
||||||
|
formality.
|
||||||
|
|
||||||
|
## 5. Firmware notes
|
||||||
|
|
||||||
|
Firmware is not open source (binary blobs, as expected for WiFi/BT RF/PHY
|
||||||
|
patches) but is freely redistributable — no export-control/NDA marking found on
|
||||||
|
the files themselves or in the vendor tree's licensing. 21 files,
|
||||||
|
`sdk/sysdrv/drv_ko/wifi/aic8800dc/aic8800dc_fw/` (484 KB total):
|
||||||
|
```
|
||||||
|
aic_userconfig_8800dc.txt, aic_userconfig_8800dw.txt # text config, not firmware
|
||||||
|
fmacfw_calib_8800dc_{u02,h_u02,hbt_u02}.bin # full-MAC calibration firmware
|
||||||
|
fmacfw_patch_8800dc_{u02,h_u02,hbt_u02,ipc_u02}.bin # full-MAC patch firmware
|
||||||
|
fmacfw_patch_tbl_8800dc_{u02,h_u02,hbt_u02,ipc_u02}.bin # patch tables
|
||||||
|
fw_adid_8800dc_{u02,u02h}.bin # analog/RF ADID cal data
|
||||||
|
fw_patch_{8800dc_u02,8800dc_u02_ext0,8800dc_u02h}.bin # BT patch firmware
|
||||||
|
fw_patch_table_8800dc_{u02,u02h}.bin # BT patch tables
|
||||||
|
lmacfw_rf_8800dc.bin # RF test-mode firmware
|
||||||
|
```
|
||||||
|
Per `aic_bsp_main.c`'s `fw_8800dc_u02[]` table (§1), the exact subset loaded at
|
||||||
|
runtime depends on `AICBSP_CPMODE_WORK` vs `_TEST` and on `CONFIG_SDIO_BT`
|
||||||
|
(=n in the vendor Makefile — WiFi and BT firmware are loaded/attached
|
||||||
|
separately, not as one combo blob, despite the combo chip). **Firmware load
|
||||||
|
path**: `AIC_FW_PATH` Kconfig default is `/oem/usr/ko/aic8800dc_fw` — this is a
|
||||||
|
5.10-era Buildroot-rootfs-layout artifact (the `/oem` partition), not a kernel
|
||||||
|
concept; on the 6.18 rootfs, point this at wherever WardenOS's 6.18 Buildroot
|
||||||
|
userspace places firmware (likely `/lib/firmware/aic8800dc/` if following
|
||||||
|
standard mainline convention, or keep `/oem/usr/ko/aic8800dc_fw` if the 6.18
|
||||||
|
rootfs partition layout is unchanged from 5.10 — confirm against whatever the
|
||||||
|
M4/M5 rootfs build actually produces, this is a rootfs-layout decision, not a
|
||||||
|
kernel one). Not found in `linux-firmware.git` (the mainline firmware
|
||||||
|
project) — AIC8800 firmware has not been upstreamed there; continue shipping
|
||||||
|
it the way the vendor tree already does (bundled alongside the driver, loaded
|
||||||
|
by direct file read per §3.8, not `request_firmware()`).
|
||||||
|
|
||||||
|
**Chip variant**: **AIC8800DC**, confirmed authoritative by the board config
|
||||||
|
(`RK_ENABLE_WIFI_CHIP=AIC8800DC`) and the SDIO device ID match in source
|
||||||
|
(`aicsdio.c:75,80`: vendor `0xc8a1`, device `0xc08d`) — not the dual-band
|
||||||
|
AIC8800D80 seen on other LuckFox boards. 2.4 GHz only in practice (confirmed
|
||||||
|
on hardware per `wifi-bluetooth-aic8800.md:10`: `iw phy` shows 1 band, 0
|
||||||
|
5 GHz channels, despite AIC8800DC being marketed dual-band-capable elsewhere).
|
||||||
|
"AIC8800DW" appears loosely in some sources for the same part; the board `.mk`
|
||||||
|
is authoritative.
|
||||||
|
|
||||||
|
## 6. Verify steps
|
||||||
|
|
||||||
|
Follow the existing A/B `_b`-slot hardware-verification loop
|
||||||
|
(`warden-sdk/kernel/docs/m2-boot-on-c8a3.md`), same method M1–M3 already used:
|
||||||
|
1. **Build**: driver compiles clean into the 6.18.46 tree (`make ... modules`
|
||||||
|
is not the target — it's `=y`, so this is just `make zImage`/whatever M2's
|
||||||
|
`build-m2.sh` wraps, succeeding with the new `drivers/net/wireless/aic8800/`
|
||||||
|
objects linked into `vmlinux`/the zImage).
|
||||||
|
2. **Probe**: boot on `warden-c8a3`, confirm in `dmesg`: the `sdmmc` MMC host
|
||||||
|
binds (`dwmmc_rockchip ffaa0000.mmc: ...`, same pattern M3 already proved
|
||||||
|
for `ffa90000.mmc`/eMMC), then an SDIO card enumerates on it, then
|
||||||
|
`aic8800_bsp`'s probe fires (vendor/device ID match, firmware file opens
|
||||||
|
succeed — watch specifically for `AIC_FW_PATH` resolution failures, §5),
|
||||||
|
then `aic8800_fdrv` attaches and **`wlan0` appears** in `ip link`.
|
||||||
|
3. **cfg80211 sanity**: `iw phy` shows the expected single 2.4 GHz band/14
|
||||||
|
channels (matching the known-good 5.10 baseline in
|
||||||
|
`wifi-bluetooth-aic8800.md:10` — a mismatch here is a signal something in
|
||||||
|
the cfg80211/wiphy port is wrong, not a chip regression).
|
||||||
|
4. **Scan**: `iw dev wlan0 scan` returns nearby APs — exercises
|
||||||
|
`rwnx_cfg80211_scan`/`cfg80211_scan_done()` and, indirectly, whether the
|
||||||
|
wiphy-locking port (§3.3) is functioning rather than deadlocking.
|
||||||
|
5. **Connect**: associate to a real AP (`wpa_supplicant`/`wpa_cli`, matching
|
||||||
|
WardenOS's own `wlan0` ownership model — do **not** start `rkwifi_server`,
|
||||||
|
§1) and confirm `COMPLETED` state plus a DHCP lease — exercises
|
||||||
|
`rwnx_cfg80211_connect`/`cfg80211_connect_result()`.
|
||||||
|
6. **Known-regression checks** (carry forward, don't re-discover): confirm the
|
||||||
|
two hardening patches (§0/§4.1) are actually effective — no console-flood
|
||||||
|
"cmd timed-out" spam under load, and no CPU-pinning busy-spin if the SDIO
|
||||||
|
link is stressed (`aicwf_bustx_thr` should sleep, not spin, on a wakeup
|
||||||
|
failure). Confirm `iw dev wlan0 set power_save off` still behaves as
|
||||||
|
expected (a wall-powered panel, no reason to want power-save —
|
||||||
|
`wifi-bluetooth-aic8800.md:41`).
|
||||||
|
7. **BT** (secondary to WiFi but same milestone): confirm `aic8800_btlpm`
|
||||||
|
attaches and `hciattach -s 1500000 /dev/ttyS1 any 1500000 flow nosleep`
|
||||||
|
(the known-good invocation) brings up an HCI device.
|
||||||
|
8. **Update on landing**: mark the `AIC8800 wifi (bsp/fdrv)` and
|
||||||
|
`AIC8800 BT (btlpm)` rows in `../DRIVER-PARITY.md` ✅, with the same
|
||||||
|
"hardware-verified, not just compiled" bar every other row uses.
|
||||||
|
|
||||||
|
## Sources
|
||||||
|
|
||||||
|
- Local (SDK/repo evidence, cited inline above by path:line):
|
||||||
|
`flare-edge/sdk/sysdrv/drv_ko/wifi/aic8800dc/**`,
|
||||||
|
`flare-edge/sdk/sysdrv/drv_ko/wifi/Makefile`,
|
||||||
|
`flare-edge/sdk/sysdrv/source/kernel/arch/arm/boot/dts/{rv1106.dtsi,rv1106-pinctrl.dtsi,rv1106g-luckfox-pico-86panel.dts}`,
|
||||||
|
`flare-edge/sdk/sysdrv/source/kernel/arch/arm/configs/{rv1106-sdiowifi.config,luckfox_rv1106_linux_defconfig}`,
|
||||||
|
`flare-edge/*/sdk-patches/wifi/patches/*.patch`,
|
||||||
|
`flare-edge/research/linux-6.18.46/.config` (live, post-M3, batch2 CFG80211=y),
|
||||||
|
`flare-edge/research/linux-6.18.46/include/net/cfg80211.h` (directly read to
|
||||||
|
verify `wiphy_new`, `cfg80211_connect_result`, `wiphy_lock`/`lockdep_assert_wiphy`
|
||||||
|
against the actual target tree, not release notes — §3.3),
|
||||||
|
`flare-edge/research/plan44-openwrt/` (checked, no aic8800),
|
||||||
|
`warden-sdk/kernel/rv1106-enablement/{PORT-STATUS.md,DRIVER-PARITY.md,OVERNIGHT-PLAN.md}`,
|
||||||
|
`warden-sdk/kernel/docs/{bringup.md,m2-boot-on-c8a3.md}`,
|
||||||
|
`luckfox-pico-86-panel/{wifi-bluetooth-aic8800.md,hardware-86-panel.md,alternative-bsps.md,sdk-patches.md,boot-chain.md}`.
|
||||||
|
- Web (via research pass, see §0/§2): github.com/radxa-pkg/aic8800 +
|
||||||
|
deepwiki.com/radxa-pkg/aic8800; forum.armbian.com topic 50332 ("AIC8800 wifi
|
||||||
|
sdio module not working with kernel 6.12+"); kernel.org/patchwork commits
|
||||||
|
`9b13df3fb64e` (timer_delete rename), `2655926aea9b` (netif_rx_ni removal),
|
||||||
|
`a05829a7222e` (wiphy-lock RTNL migration start); kernelnewbies.org/Linux_6.12;
|
||||||
|
LKML/lkml.iu.edu mirrors for the timer-rename and wiphy-guard series.
|
||||||
|
Patchwork/LWN direct fetches were partially blocked by anti-bot walls during
|
||||||
|
research, so the *exact commit/version* the wiphy-lock migration landed in
|
||||||
|
is not pinned precisely — but its **presence and current contract in the
|
||||||
|
actual 6.18.46 tree we're porting to is directly confirmed** (previous
|
||||||
|
paragraph), which is the fact that actually matters for this port.
|
||||||
@@ -0,0 +1,312 @@
|
|||||||
|
# AIC8800 wifi+BT port — M5 progress (2026-08-24)
|
||||||
|
|
||||||
|
Status: **DONE — zImage + rv1106-warden.dtb build clean with the driver
|
||||||
|
built in.** Not flashed/booted (parent session verifies on hardware).
|
||||||
|
|
||||||
|
## Build status
|
||||||
|
|
||||||
|
```
|
||||||
|
export PATH=".../sdk/tools/linux/toolchain/arm-rockchip830-linux-uclibcgnueabihf/bin:/usr/bin:/bin"
|
||||||
|
export ARCH=arm CROSS_COMPILE=arm-rockchip830-linux-uclibcgnueabihf-
|
||||||
|
make ARCH=arm CROSS_COMPILE=$CROSS_COMPILE zImage
|
||||||
|
make ARCH=arm CROSS_COMPILE=$CROSS_COMPILE rockchip/rv1106-warden.dtb
|
||||||
|
```
|
||||||
|
Clean rebuild (all aic8800 sources touched to force recompilation): **0
|
||||||
|
errors**, 104 warnings, all benign vendor-code style (`101
|
||||||
|
-Wmissing-prototypes` on internal non-`static` helper functions that were
|
||||||
|
never prototyped in headers, `3 -Wempty-body` on an existing `if
|
||||||
|
(...);`-with-no-body debug macro expansion) — none are correctness issues
|
||||||
|
and none were introduced by version-delta fixes. `zImage is ready`;
|
||||||
|
`rv1106-warden.dtb` compiles with only the pre-existing, unrelated `&rgb`
|
||||||
|
graph-endpoint warning (already known from M4 display work, not
|
||||||
|
wifi-related). Confirmed via `nm vmlinux.unstripped` that the driver is
|
||||||
|
actually linked in, not silently dropped: `aicbsp_sdio_driver`,
|
||||||
|
`aicwf_sdio_driver`, `rwnx_cfg80211_ops` all present, and the three
|
||||||
|
`module_init()`s appear as `device_initcall`s in the correct link order —
|
||||||
|
`__initcall__kmod_aic8800_fdrv__...rwnx_mod_init` after bsp's init and
|
||||||
|
`__initcall__kmod_aic8800_btlpm__...aic_bluetooth_mod_init` last.
|
||||||
|
|
||||||
|
## What was copied/wired
|
||||||
|
|
||||||
|
Copied `flare-edge/sdk/sysdrv/drv_ko/wifi/aic8800dc/{aic8800_bsp,aic8800_fdrv,
|
||||||
|
aic8800_btlpm}/*.{c,h}` into `drivers/net/wireless/aic8800/` in the 6.18
|
||||||
|
tree, source-only (excluded `.mod.c`/`.o`/`Module.symvers`/etc build
|
||||||
|
artifacts left over in the vendor tree from prior out-of-tree builds).
|
||||||
|
|
||||||
|
Dropped as dead code for this board (SDIO-only, no USB/PCIe, `CONFIG_SDIO_BT=n`):
|
||||||
|
`usb_host.{c,h}`, `rwnx_pci.{c,h}`, `aicwf_usb.c`, `btsdio.c`, `aic_btsdio.c`.
|
||||||
|
|
||||||
|
**One exception the plan flagged correctly**: `rwnx_mesh.{c,h}` was
|
||||||
|
initially dropped on the same "dead code" theory but had to be **restored**
|
||||||
|
— `rwnx_tx.c`'s `NL80211_IFTYPE_MESH_POINT` switch-case block is not
|
||||||
|
preprocessor-gated, so `rwnx_mesh.h`'s types (`struct rwnx_mesh_path`,
|
||||||
|
`struct rwnx_mesh_proxy`) and prototypes are needed to compile even though
|
||||||
|
this board never creates a mesh-type interface. Restored both files
|
||||||
|
(1KB each) and added `rwnx_mesh.o` back to the fdrv `Makefile` object list.
|
||||||
|
`usb_host.c`/`rwnx_pci.c` did NOT need restoring — no build error ever
|
||||||
|
referenced them.
|
||||||
|
|
||||||
|
New in-tree Kbuild wiring (not copied from vendor, vendor Makefiles are
|
||||||
|
out-of-tree `KDIR=` external-module style and don't apply directly):
|
||||||
|
- `drivers/net/wireless/aic8800/Kconfig` — top-level `AIC_WLAN_SUPPORT`
|
||||||
|
bool + `AIC_FW_PATH` string, `source`s the fdrv/btlpm sub-Kconfigs.
|
||||||
|
Wired into `drivers/net/wireless/Kconfig` (new `source` line, alongside
|
||||||
|
the existing vendor Kconfig list).
|
||||||
|
- `drivers/net/wireless/aic8800/Makefile` — `obj-y` list preserving
|
||||||
|
bsp → fdrv → btlpm link order (per PORT-PLAN.md §4.5, since these are
|
||||||
|
built-in `=y` now and initcall order follows link order). Wired into
|
||||||
|
`drivers/net/wireless/Makefile` (`obj-$(CONFIG_AIC_WLAN_SUPPORT) += aic8800/`).
|
||||||
|
- `aic8800_fdrv/Kconfig`, `aic8800_btlpm/Kconfig` — vendor's `tristate`
|
||||||
|
symbols changed to `default y` (built-in, not modular; the 6.18 rootfs
|
||||||
|
has no working module pipeline yet).
|
||||||
|
- Three new in-tree `Makefile`s (`aic8800_bsp/`, `aic8800_fdrv/`,
|
||||||
|
`aic8800_btlpm/`) translating the vendor's `ccflags-$(CONFIG_X) += -DX`
|
||||||
|
pattern into fixed `-D` flags for the one build configuration this board
|
||||||
|
actually uses (SDIO, Rockchip, no USB/PCI/mesh-in-practice, TCP-ACK
|
||||||
|
filter, preallocated TXQ, RF test support — see each Makefile's ccflags
|
||||||
|
for the full list, matching the vendor Makefile defaults). `CONFIG_AIC_FW_PATH`
|
||||||
|
needs no `-D`: it's now a real Kconfig string symbol, so
|
||||||
|
`include/generated/autoconf.h` already defines the `CONFIG_AIC_FW_PATH`
|
||||||
|
C-string macro the driver expects (`aicsdio.c:59`, `aic_bsp_driver.h:348`).
|
||||||
|
|
||||||
|
## API-delta fixes (file → change)
|
||||||
|
|
||||||
|
### Plan-anticipated mechanical renames (applied via scoped `sed`, all call sites)
|
||||||
|
- `from_timer()` → `timer_container_of()` — 7 sites: `aicsdio.c`,
|
||||||
|
`aicwf_sdio.c` (×3), `rwnx_main.c`, `rwnx_rx.c` (×2).
|
||||||
|
- `del_timer_sync()` → `timer_delete_sync()` — 10 sites: `aicsdio.c`,
|
||||||
|
`aicwf_sdio.c` (×5), `rwnx_main.c` (×2, one more than the plan's count —
|
||||||
|
`rwnx_main.c:6177` wasn't in the plan's list but grep found it),
|
||||||
|
`rwnx_rx.c` (×2).
|
||||||
|
- `del_timer()` → `timer_delete()` — 9 sites: `aicwf_tcp_ack.c` (×4),
|
||||||
|
`rwnx_rx.c` (×2), `aic8800_btlpm/aic8800_btlpm.c` (×3, dead — not in this
|
||||||
|
build's object list, fixed anyway for tree hygiene), `aic8800_btlpm/lpm.c`
|
||||||
|
(×3, same — `lpm.c` isn't compiled, `CONFIG_SUPPORT_LPM=n`).
|
||||||
|
- `netif_rx_ni()` → `netif_rx()` — 3 sites, all `rwnx_rx.c`.
|
||||||
|
|
||||||
|
### Deltas beyond the plan's list (found by the compiler, fixed against 6.18 headers)
|
||||||
|
- **`cfg80211_rx_spurious_frame()` / `cfg80211_rx_unexpected_4addr_frame()`**
|
||||||
|
(`rwnx_rx.c`, 2 sites): gained a `link_id` param before `gfp`; passed
|
||||||
|
`-1` ("not applicable", per the header's own doc comment — this driver
|
||||||
|
has no MLO).
|
||||||
|
- **`cfg80211_ch_switch_notify()` / `cfg80211_ch_switch_started_notify()`**
|
||||||
|
(`rwnx_main.c`, 2 sites): the vendor's own version-gated compat shim
|
||||||
|
(`rwnx_compat.h`'s `HIGH_KERNEL_VERSION3`/`4` = 6.3.0) already anticipated
|
||||||
|
*an* API change here but guessed a 6.3-era signature that's since changed
|
||||||
|
again by 6.18 (`notify` dropped back to 3 args `(dev, chandef, link_id)`;
|
||||||
|
`started_notify` is 5 args `(dev, chandef, link_id, count, quiet)`, no
|
||||||
|
trailing reserved arg). Added a new `#if LINUX_VERSION_CODE >=
|
||||||
|
KERNEL_VERSION(6, 7, 0)` tier ahead of the existing chain rather than
|
||||||
|
edit the historical shim; `link_id = 0` (mandatory for non-MLO per the
|
||||||
|
header).
|
||||||
|
- **`cfg80211_ops` struct-initializer type mismatches** (`rwnx_main.c`,
|
||||||
|
7 callbacks — all gained new params, all effectively "not applicable" for
|
||||||
|
this single-radio, non-MLO, SDIO full-MAC driver, so the new params are
|
||||||
|
accepted and ignored):
|
||||||
|
- `change_beacon`: now takes `struct cfg80211_ap_update *` (wraps the old
|
||||||
|
`cfg80211_beacon_data` as `.beacon`, plus FILS/S1G/unsol fields unused
|
||||||
|
here) — unwrapped with `&update->beacon` so `rwnx_build_bcn()` and its
|
||||||
|
other 3 callers stay untouched.
|
||||||
|
- `set_monitor_channel`: gained a `struct net_device *dev` param. Rather
|
||||||
|
than thread an unused `dev` through the well-used internal 2-arg
|
||||||
|
`rwnx_cfg80211_set_monitor_channel()` (called elsewhere with `chandef =
|
||||||
|
NULL` to retrieve firmware-level channel state), added a thin
|
||||||
|
`rwnx_cfg80211_set_monitor_channel_ops()` adapter and pointed the ops
|
||||||
|
table at that instead.
|
||||||
|
- `set_wiphy_params`: gained `int radio_idx` before `changed`.
|
||||||
|
- `set_tx_power`: gained `int radio_idx` between `wdev` and `type`.
|
||||||
|
- `get_tx_power`: gained `int radio_idx, unsigned int link_id` before the
|
||||||
|
output pointer.
|
||||||
|
- `start_radar_detection`: gained a trailing `int link_id`.
|
||||||
|
- `tdls_mgmt`: gained `int link_id` right after `peer`.
|
||||||
|
- **`cfg80211_cac_event()`** (`rwnx_radar.c`, 2 sites): gained a trailing
|
||||||
|
`unsigned int link_id`; passed `0` (mandatory for non-MLO per doc comment).
|
||||||
|
- **`wakeup_source_create()`/`_add()`/`_remove()`/`_destroy()`** (`rwnx_wakelock.c`):
|
||||||
|
removed from the public API entirely (still exist internally in
|
||||||
|
`drivers/base/power/wakeup.c` but are no longer `EXPORT_SYMBOL`'d) —
|
||||||
|
`wakeup_source_register(dev, name)` / `wakeup_source_unregister(ws)` is
|
||||||
|
now the only supported entry point (confirmed: `wakeup_source_register()`'s
|
||||||
|
own implementation is literally `create()` + conditional sysfs +
|
||||||
|
`add()`). Rewrote `rwnx_wakeup_init()`/`_deinit()` to call
|
||||||
|
`wakeup_source_register(NULL, name)` / `wakeup_source_unregister(ws)` —
|
||||||
|
`dev=NULL` registers an anonymous source not tied to a `struct device`,
|
||||||
|
matching the old `wakeup_source_create()` behavior used here. (The file
|
||||||
|
already had a correct modern `rwnx_wakeup_register()`/`_unregister()`
|
||||||
|
pair for a different call path — this fix makes `rwnx_wakeup_init()`
|
||||||
|
consistent with it.)
|
||||||
|
- **`MODULE_IMPORT_NS(bare_token)` → `MODULE_IMPORT_NS("string")`** — 3
|
||||||
|
sites (`aic_bsp_driver.c`, `rwnx_platform.c`, `rwnx_main.c`), all
|
||||||
|
importing the same non-mainline `VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver`
|
||||||
|
namespace token (an Android-GKI-kernel artifact — confirmed absent from
|
||||||
|
our mainline `fs/` tree, so this is now inert modinfo metadata, not a
|
||||||
|
real namespace gate). `MODULE_INFO()`/`MODULE_IMPORT_NS()` now require a
|
||||||
|
quoted string per current `include/linux/module.h`.
|
||||||
|
- **`rwnx_platform.c`: unconditional `#include "rwnx_pci.h"`** — the header
|
||||||
|
was dropped with `rwnx_pci.c` (dead code, no PCIe on this board), but this
|
||||||
|
one `#include` wasn't behind any guard. Guarded it behind
|
||||||
|
`AICWF_PCIE_SUPPORT` (matching the guard its only two callers,
|
||||||
|
`rwnx_platform_{,un}register_drv()`, already use at their call sites in
|
||||||
|
`rwnx_main.c`) and guarded the two functions' `rwnx_pci_{,un}register_drv()`
|
||||||
|
bodies the same way, returning `0`/no-op for the SDIO-only build instead.
|
||||||
|
- **`<linux/rfkill-wlan.h>` (vendor-only, PORT-PLAN.md §3.7)** — removed
|
||||||
|
from 3 files (`aicsdio.c`, `aicwf_sdio.c`, `rwnx_main.c`). Traced every
|
||||||
|
real `rockchip_wifi_power()`/`_set_carddetect()` call site first: all of
|
||||||
|
them are either already `#if 0`'d out in the vendor source
|
||||||
|
(`aicwf_sdio.c`) or gated behind `CONFIG_PLATFORM_ROCKCHIP2` (a symbol
|
||||||
|
this build never defines — only plain `ROCKCHIP`), so none needed
|
||||||
|
stubbing individually; only the unconditional header `#include`s needed
|
||||||
|
removing. The DT's `mmc-pwrseq-simple` node does the power/reset
|
||||||
|
sequencing instead, as planned.
|
||||||
|
- **`CONFIG_RFTEST` added to `aic8800_fdrv`'s ccflags** — not itself a
|
||||||
|
version delta, but needed: `aic_priv_cmd.c`'s RF-test-mode enum
|
||||||
|
(`SET_TX`, `RDWR_EFUSE_*`, ~50 constants) and struct typedefs
|
||||||
|
(`cmd_rf_settx_t` etc.) are defined inline in the file under `#ifdef
|
||||||
|
CONFIG_RFTEST`, and later code in the same file references them
|
||||||
|
unconditionally. Omitting `-DCONFIG_RFTEST` (as an initial conservative
|
||||||
|
default) produced ~90 "undeclared identifier" errors; the vendor
|
||||||
|
Makefile's own default is `CONFIG_RFTEST=y`, so restoring it matches
|
||||||
|
vendor intent, not a workaround.
|
||||||
|
|
||||||
|
### Duplicate-symbol fixes (the biggest surprise, not in the plan)
|
||||||
|
The vendor `aic8800_bsp` and `aic8800_fdrv` were always built as two
|
||||||
|
**independent `.ko` modules**, each with its own private symbol namespace.
|
||||||
|
Built in-tree as `=y`, both link into one `vmlinux`, and it turns out
|
||||||
|
`aic8800_bsp` carries a **complete second, self-contained copy** of large
|
||||||
|
parts of `aic8800_fdrv`'s machinery — its own SDIO byte/frame transport
|
||||||
|
(`aicwf_sdio_*`, `aicwf_bus_*`, `aicwf_frame_*`, `aicwf_tx_*`,
|
||||||
|
`aicwf_rx_*`, `crc8_ponl_107`), its own message/debug-command layer
|
||||||
|
(`rwnx_send_dbg_*_req`, `rwnx_cmd_mgr_{init,deinit}`,
|
||||||
|
`rwnx_rx_handle_msg`), and a few globals (`chip_mcu_id`, `chip_sub_id`,
|
||||||
|
`aic_fw_path`, `testmode`) — used for the bsp-side firmware bring-up phase
|
||||||
|
before fdrv's own driver instance re-probes and takes over the SDIO
|
||||||
|
function for real runtime operation. **49 symbols total**, `ld` caught
|
||||||
|
every one as "multiple definition" at the final `vmlinux.o` link (the
|
||||||
|
per-subdirectory `built-in.a` build had already succeeded — this class of
|
||||||
|
error only surfaces at the whole-image link, which is worth knowing for
|
||||||
|
anyone repeating this kind of port).
|
||||||
|
|
||||||
|
Verified via `aic_bsp_export.h` (the real, narrow, intentional
|
||||||
|
`aicbsp_*`-prefixed bsp→fdrv API surface) that none of the 49 are part of
|
||||||
|
the actual cross-module contract, and via `grep -rlw` that `fdrv` has its
|
||||||
|
own **complete** definition of every one (not an `extern` pointing at
|
||||||
|
bsp's copy) — confirming these are two truly independent implementations,
|
||||||
|
not one legitimately shared. Fix: renamed all 49 symbols with an
|
||||||
|
`aicbsp_priv_` prefix, scoped strictly to `aic8800_bsp/*.{c,h}` (both
|
||||||
|
definitions and bsp-internal call sites via whole-word `sed`); `fdrv`'s
|
||||||
|
copies are untouched. One of the 49, `md5.c`'s MD5 functions, got a
|
||||||
|
different (smaller-footprint) fix: `aic8800_bsp/md5.c` and
|
||||||
|
`aic8800_fdrv/md5.c` are **byte-identical** files, so `md5.o` was simply
|
||||||
|
dropped from `aic8800_fdrv`'s object list instead of renamed — `fdrv`'s
|
||||||
|
calls resolve against `bsp`'s copy at link time since bsp links first.
|
||||||
|
|
||||||
|
## Config symbols set
|
||||||
|
|
||||||
|
```
|
||||||
|
CONFIG_AIC_WLAN_SUPPORT=y
|
||||||
|
CONFIG_AIC8800_WLAN_SUPPORT=y
|
||||||
|
CONFIG_AIC8800_BTLPM_SUPPORT=y
|
||||||
|
CONFIG_AIC_FW_PATH="/oem/usr/ko/aic8800dc_fw"
|
||||||
|
CONFIG_WIRELESS=y CONFIG_CFG80211=y CONFIG_WLAN=y (already y pre-port)
|
||||||
|
CONFIG_MMC=y CONFIG_MMC_DW_ROCKCHIP=y CONFIG_RFKILL=y (already y pre-port)
|
||||||
|
CONFIG_BT=y (was =m, flipped to =y — no module pipeline yet)
|
||||||
|
CONFIG_BT_HCIUART=y (was =m, flipped to =y)
|
||||||
|
CONFIG_BT_HCIUART_H4=y (already y)
|
||||||
|
CONFIG_CRYPTO_ARC4=y CONFIG_CRYPTO_CTR=y CONFIG_CRYPTO_CCM=y CONFIG_CRYPTO_AES=y
|
||||||
|
# CONFIG_MAC80211 is not set (explicitly left off — pure cfg80211 full-MAC
|
||||||
|
driver, confirmed no mac80211/ieee80211_hw
|
||||||
|
symbol usage anywhere in aic8800_fdrv)
|
||||||
|
```
|
||||||
|
Ran `olddefconfig` after setting these; verified afterward that other
|
||||||
|
ported drivers' symbols (`CONFIG_CLK_RV1106`, `CONFIG_PINCTRL_ROCKCHIP`,
|
||||||
|
`CONFIG_DRM_ROCKCHIP`, `CONFIG_MMC_DW_ROCKCHIP`) are untouched.
|
||||||
|
|
||||||
|
## Device tree
|
||||||
|
|
||||||
|
`arch/arm/boot/dts/rockchip/rv1106-warden.dts`:
|
||||||
|
- New root-level `sdio_pwrseq: sdio-pwrseq` node (`mmc-pwrseq-simple`,
|
||||||
|
`reset-gpios = <&gpio1 RK_PA2 GPIO_ACTIVE_LOW>`), transplanted verbatim
|
||||||
|
from the vendor board DTS.
|
||||||
|
- New `&sdmmc` override: `max-frequency = <50000000>`, `bus-width = <4>`,
|
||||||
|
`cap-sd-highspeed`, `cap-sdio-irq`, `keep-power-in-suspend`,
|
||||||
|
`non-removable`, `rockchip,default-sample-phase = <90>`,
|
||||||
|
`supports-sdio`, `mmc-pwrseq = <&sdio_pwrseq>`, pinctrl
|
||||||
|
`sdmmc0_clk`/`_cmd`/`_bus4`/`_det`, `status = "okay"`.
|
||||||
|
- `&sdio` (mmc@ff9a0000) left untouched — stays `disabled`, genuinely
|
||||||
|
unused hardware on this board.
|
||||||
|
|
||||||
|
**Note**: the `&sdmmc` node itself (`mmc@ffaa0000`) in `rv1106.dtsi` and
|
||||||
|
the `sdmmc0_*` pinctrl groups in `rv1106-pinctrl.dtsi` were **already
|
||||||
|
present** in this tree from earlier M1–M3 work (not added by this task) —
|
||||||
|
this task only added the board-DTS *enablement* (`status = "okay"` +
|
||||||
|
properties) and the new `sdio_pwrseq` node. Verified in the compiled
|
||||||
|
`.dtb` (decompiled with `dtc -I dtb -O dts`) that both nodes carry the
|
||||||
|
correct phandles/properties.
|
||||||
|
|
||||||
|
## Hardening patches
|
||||||
|
|
||||||
|
Both hardware-verified patches from the plan are **already present in the
|
||||||
|
vendor SDK source** we copied from (not merely trackable-but-unapplied) —
|
||||||
|
confirmed two ways: `patch -p5 --dry-run` on both reported "Reversed (or
|
||||||
|
previously applied) patch detected" against the freshly-copied tree, and
|
||||||
|
`grep` found their exact markers already in place:
|
||||||
|
- `0001-aic8800dc-no-zero-timeout-spin-and-ratelimit.patch`
|
||||||
|
(`major-app-additions/sdk-patches/wifi/patches/`): `printk_ratelimited`
|
||||||
|
and the `max_t(u32, cmd_mgr->queue_sz, 1)` clamp are both in
|
||||||
|
`rwnx_cmds.c` as shipped.
|
||||||
|
`future-features-2/sdk-patches/wifi/patches/0002-aic8800dc-sdio-wakeup-sleep-not-spin.patch`:
|
||||||
|
- `usleep_range(200, 400)`, the `woke` flag, and the "SDIO wakeup failed;
|
||||||
|
chip may be wedged" message are all in `aicwf_sdio.c` as shipped.
|
||||||
|
|
||||||
|
No action needed beyond copying the source. **Known housekeeping gap
|
||||||
|
(pre-existing, not fixed by this task, flagged by the plan)**: patch 0002
|
||||||
|
is still only tracked under `future-features-2/sdk-patches/wifi/patches/`,
|
||||||
|
not this branch's own `sdk-patches/wifi/patches/` — worth closing
|
||||||
|
separately since the fix is live in the vendor tree either way.
|
||||||
|
|
||||||
|
## Constraints honored
|
||||||
|
|
||||||
|
Only touched: the wifi driver tree (`drivers/net/wireless/aic8800/`), its
|
||||||
|
Kconfig/Makefile wiring (`drivers/net/wireless/{Kconfig,Makefile}`), the
|
||||||
|
board DTS wifi nodes (`rv1106-warden.dts`, additive only), and
|
||||||
|
wifi/BT/crypto-related `.config` symbols. Did not touch any other driver,
|
||||||
|
DT node, or unrelated config symbol — spot-checked after the port that
|
||||||
|
`CONFIG_CLK_RV1106`, `CONFIG_PINCTRL_ROCKCHIP`, `CONFIG_DRM_ROCKCHIP`,
|
||||||
|
`CONFIG_MMC_DW_ROCKCHIP` are all still `=y`, and the `&rgb`/VOP-related dtc
|
||||||
|
warning is the same pre-existing one from M4 (not new). Never touched
|
||||||
|
hardware — no kflash, no reboot, no `/dev/ttyUSB2`, no Pi.
|
||||||
|
|
||||||
|
## What the parent should watch for on hardware
|
||||||
|
|
||||||
|
Per PORT-PLAN.md §6's verify sequence:
|
||||||
|
1. `dmesg`: `dwmmc_rockchip ffaa0000.mmc: ...` binding (mirrors the M3
|
||||||
|
eMMC pattern on `ffa90000.mmc`), then an SDIO card enumerating on it
|
||||||
|
(vendor/device ID `0xc8a1`/`0xc08d`), then `aic8800_bsp`'s probe firing.
|
||||||
|
2. **Firmware path**: `AIC_FW_PATH` defaults to `/oem/usr/ko/aic8800dc_fw`
|
||||||
|
— a 5.10-era Buildroot `/oem` partition path. Confirm the 6.18 rootfs
|
||||||
|
actually has firmware there (or update `CONFIG_AIC_FW_PATH` to wherever
|
||||||
|
it landed) — watch specifically for firmware-open failures in dmesg as
|
||||||
|
the first failure mode, before assuming a driver/DT bug.
|
||||||
|
3. `wlan0` should appear in `ip link` once `aic8800_fdrv` attaches.
|
||||||
|
4. `iw phy` should show one 2.4 GHz band, 14 channels (matches the known
|
||||||
|
5.10 baseline — a mismatch signals a cfg80211/wiphy port bug, not a
|
||||||
|
chip issue).
|
||||||
|
5. `iw dev wlan0 scan` and a real AP association exercise the
|
||||||
|
wiphy-locking behavior (§3.3 of the plan) — this is the area with the
|
||||||
|
least direct verification in this port (the driver's own ops callbacks
|
||||||
|
need no new locking per the plan's analysis, since cfg80211 core now
|
||||||
|
holds the wiphy mutex before calling in; the async-context notification
|
||||||
|
calls from `rwnx_msg_rx.c` were flagged as the highest-residual-risk
|
||||||
|
area and were NOT touched by this build-fix pass beyond the signature
|
||||||
|
changes above — if scan/connect hang or lockdep splats appear, look
|
||||||
|
there first).
|
||||||
|
6. Confirm the two hardening patches are actually effective under load: no
|
||||||
|
"cmd timed-out" console flood, no CPU-pinning busy-spin on a stressed/
|
||||||
|
wedged SDIO link (`aicwf_bustx_thr` should sleep, not spin).
|
||||||
|
7. BT: `aic8800_btlpm` should attach; `hciattach -s 1500000 /dev/ttyS1 any
|
||||||
|
1500000 flow nosleep` should bring up an HCI device.
|
||||||
|
8. Given the scale of the bsp/fdrv duplicate-symbol rename (49 symbols),
|
||||||
|
if anything behaves subtly wrong in the bsp-side firmware bring-up
|
||||||
|
phase specifically (vs. fdrv's runtime path), double-check the rename
|
||||||
|
didn't miss a cross-file reference within `aic8800_bsp/` — it was done
|
||||||
|
with whole-word `sed` scoped to that directory and re-verified by a
|
||||||
|
clean rebuild, but it touched every `.c`/`.h` in that subtree.
|
||||||
@@ -0,0 +1,29 @@
|
|||||||
|
# SPDX-License-Identifier: GPL-2.0-only
|
||||||
|
#
|
||||||
|
# AICSemi AIC8800DC SDIO WiFi+BT driver (WardenOS M5 port).
|
||||||
|
#
|
||||||
|
# Ported from the vendor 5.10.160 out-of-tree source
|
||||||
|
# (flare-edge/sdk/sysdrv/drv_ko/wifi/aic8800dc/) — see
|
||||||
|
# warden-sdk/kernel/rv1106-enablement/wifi/PORT-PLAN.md and PORT-PROGRESS.md.
|
||||||
|
# Built-in only (=y): the 6.18 rootfs has no working module-loading pipeline
|
||||||
|
# yet, so these default to y rather than the vendor's default-n/tristate.
|
||||||
|
|
||||||
|
config AIC_WLAN_SUPPORT
|
||||||
|
bool "AIC wireless Support"
|
||||||
|
default y
|
||||||
|
help
|
||||||
|
This is support for the AIC wireless chip (AIC8800DC SDIO combo
|
||||||
|
wifi+BT on the WardenOS 86-Panel).
|
||||||
|
|
||||||
|
config AIC_FW_PATH
|
||||||
|
depends on AIC_WLAN_SUPPORT
|
||||||
|
string "Firmware & config file path"
|
||||||
|
default "/oem/usr/ko/aic8800dc_fw"
|
||||||
|
help
|
||||||
|
Path to the firmware & config files. The driver reads these
|
||||||
|
directly (not via request_firmware()) — see PORT-PLAN.md §3.8.
|
||||||
|
|
||||||
|
if AIC_WLAN_SUPPORT
|
||||||
|
source "drivers/net/wireless/aic8800/aic8800_fdrv/Kconfig"
|
||||||
|
source "drivers/net/wireless/aic8800/aic8800_btlpm/Kconfig"
|
||||||
|
endif
|
||||||
@@ -0,0 +1,8 @@
|
|||||||
|
# SPDX-License-Identifier: GPL-2.0-only
|
||||||
|
#
|
||||||
|
# Link order matters: bsp before fdrv before btlpm, mirroring the working
|
||||||
|
# insmod order (insmod_wifi.sh) now that these are built-in (=y) instead of
|
||||||
|
# modules — see PORT-PLAN.md §4.5.
|
||||||
|
obj-$(CONFIG_AIC_WLAN_SUPPORT) += aic8800_bsp/
|
||||||
|
obj-$(CONFIG_AIC8800_WLAN_SUPPORT) += aic8800_fdrv/
|
||||||
|
obj-$(CONFIG_AIC8800_BTLPM_SUPPORT) += aic8800_btlpm/
|
||||||
@@ -0,0 +1,33 @@
|
|||||||
|
# SPDX-License-Identifier: GPL-2.0-only
|
||||||
|
#
|
||||||
|
# aic8800_bsp — SDIO bus glue + firmware bootstrap, ported in-tree from the
|
||||||
|
# vendor out-of-tree Makefile (flare-edge/sdk/sysdrv/drv_ko/wifi/aic8800dc/
|
||||||
|
# aic8800_bsp/Makefile). CONFIG_AIC_FW_PATH is now a real Kconfig string
|
||||||
|
# symbol (see ../Kconfig) so it needs no -D here — the driver picks it up
|
||||||
|
# from include/generated/autoconf.h directly (aicsdio.c, aic_bsp_driver.h).
|
||||||
|
#
|
||||||
|
# Vendor CONFIG_* build-time knobs below are preserved as fixed -D flags
|
||||||
|
# (not full Kconfig symbols) since this port only needs the one build
|
||||||
|
# configuration this board actually uses (SDIO, Rockchip, no USB/PCI/mesh).
|
||||||
|
|
||||||
|
ccflags-y += -DAICWF_SDIO_SUPPORT
|
||||||
|
ccflags-y += -DCONFIG_SDIO_PWRCTRL
|
||||||
|
ccflags-y += -DCONFIG_PLATFORM_ROCKCHIP
|
||||||
|
ccflags-y += -DCONFIG_LINK_DET_5G
|
||||||
|
ccflags-y += -DCONFIG_VRF_DCDC_MODE
|
||||||
|
ccflags-y += -DCONFIG_PREALLOC_TXQ
|
||||||
|
ccflags-y += -DCONFIG_DPD -DCONFIG_FORCE_DPD_CALIB
|
||||||
|
ccflags-y += -DCONFIG_RESV_MEM_SUPPORT
|
||||||
|
ccflags-y += -DCONFIG_AMSDU_RX
|
||||||
|
ccflags-y += -Wno-unused-function
|
||||||
|
|
||||||
|
obj-$(CONFIG_AIC_WLAN_SUPPORT) += aic8800_bsp.o
|
||||||
|
aic8800_bsp-y := \
|
||||||
|
aic8800dc_compat.o \
|
||||||
|
aic8800d80_compat.o \
|
||||||
|
aic_bsp_main.o \
|
||||||
|
aic_bsp_driver.o \
|
||||||
|
aicsdio.o \
|
||||||
|
aicsdio_txrxif.o \
|
||||||
|
md5.o \
|
||||||
|
aicwf_txq_prealloc.o
|
||||||
@@ -0,0 +1,7 @@
|
|||||||
|
config AIC8800_BTLPM_SUPPORT
|
||||||
|
tristate "AIC8800 bluetooth Support"
|
||||||
|
default y
|
||||||
|
help
|
||||||
|
This is support for the aic8800 bluetooth low-power-mode / HCI
|
||||||
|
wake companion module (aic8800_btlpm). Built-in (y) by default —
|
||||||
|
see the aic8800 port notes in warden-sdk/kernel/rv1106-enablement/wifi/.
|
||||||
@@ -0,0 +1,16 @@
|
|||||||
|
# SPDX-License-Identifier: GPL-2.0-only
|
||||||
|
#
|
||||||
|
# aic8800_btlpm — Bluetooth low-power-mode / HCI wake companion module,
|
||||||
|
# ported in-tree from the vendor out-of-tree Makefile
|
||||||
|
# (flare-edge/sdk/sysdrv/drv_ko/wifi/aic8800dc/aic8800_btlpm/Makefile).
|
||||||
|
# lpm.c stays out of the build (CONFIG_SUPPORT_LPM was already off in the
|
||||||
|
# vendor default; aic8800_btlpm.c's own has_lpm_enabled/lpm_fops logic is
|
||||||
|
# self-contained and does not call into lpm.c).
|
||||||
|
|
||||||
|
ccflags-y += -DCONFIG_PLATFORM_ROCKCHIP
|
||||||
|
ccflags-y += -I$(srctree)/$(src)/../aic8800_bsp
|
||||||
|
|
||||||
|
obj-$(CONFIG_AIC8800_BTLPM_SUPPORT) += aic8800_btlpm.o
|
||||||
|
aic8800_btlpm-y := \
|
||||||
|
aic_bluetooth_main.o \
|
||||||
|
rfkill.o
|
||||||
@@ -0,0 +1,7 @@
|
|||||||
|
config AIC8800_WLAN_SUPPORT
|
||||||
|
tristate "AIC8800 wlan Support"
|
||||||
|
default y
|
||||||
|
help
|
||||||
|
This is support for the aic8800 cfg80211 full-MAC wifi driver
|
||||||
|
(aic8800_fdrv). Built-in (y) by default — see the aic8800 port
|
||||||
|
notes in warden-sdk/kernel/rv1106-enablement/wifi/.
|
||||||
@@ -0,0 +1,92 @@
|
|||||||
|
# SPDX-License-Identifier: GPL-2.0-only
|
||||||
|
#
|
||||||
|
# aic8800_fdrv — the cfg80211 full-MAC driver ("fdrv"), ported in-tree from
|
||||||
|
# the vendor out-of-tree Makefile (flare-edge/sdk/sysdrv/drv_ko/wifi/
|
||||||
|
# aic8800dc/aic8800_fdrv/Makefile). SDIO-only build (this board has no
|
||||||
|
# USB/PCI variant) — usb_host.c and rwnx_pci.c are dropped from the tree
|
||||||
|
# entirely (PORT-PLAN.md §4.1 flagged both as candidates to drop "unless a
|
||||||
|
# build error proves them referenced elsewhere" — that held for these two).
|
||||||
|
# rwnx_mesh.c was ALSO dropped initially on the same theory but had to be
|
||||||
|
# restored: rwnx_tx.c's NL80211_IFTYPE_MESH_POINT switch-case is not
|
||||||
|
# preprocessor-gated, so rwnx_mesh.h's types/prototypes are needed to
|
||||||
|
# compile even though this board never creates a mesh-type interface.
|
||||||
|
# md5.o is dropped from THIS module's object list only: it is byte-identical
|
||||||
|
# to aic8800_bsp's
|
||||||
|
# md5.c (same non-static MD5Init/MD5Update/... symbols) and, unlike the
|
||||||
|
# old separate .ko world, both drivers now link into one vmlinux — keeping
|
||||||
|
# both objects would be a multiple-definition link error. aic8800_bsp
|
||||||
|
# links first (../Makefile) so fdrv's calls resolve against its md5.o.
|
||||||
|
|
||||||
|
ccflags-y += -DCONFIG_RWNX_FULLMAC
|
||||||
|
ccflags-y += -DAICWF_SDIO_SUPPORT
|
||||||
|
ccflags-y += -DCONFIG_SDIO_PWRCTRL
|
||||||
|
ccflags-y += -DCONFIG_PLATFORM_ROCKCHIP
|
||||||
|
ccflags-y += -DCONFIG_START_FROM_BOOTROM
|
||||||
|
ccflags-y += -DCONFIG_PMIC_SETTING
|
||||||
|
ccflags-y += -DCONFIG_VRF_DCDC_MODE
|
||||||
|
ccflags-y += -DCONFIG_ROM_PATCH_EN
|
||||||
|
ccflags-y += -DCONFIG_RWNX_RADAR
|
||||||
|
ccflags-y += -DCONFIG_RWNX_BCMC
|
||||||
|
ccflags-y += -DNX_TXQ_CNT=5
|
||||||
|
ccflags-y += -DCONFIG_USER_MAX=1
|
||||||
|
ccflags-y += -DCONFIG_RWNX_DBG
|
||||||
|
ccflags-y += -DUSE_5G
|
||||||
|
ccflags-y += -DCONFIG_TXRX_THREAD_PRIO
|
||||||
|
ccflags-y += -DCONFIG_SUPPORT_REALTIME_CHANGE_MAC
|
||||||
|
ccflags-y += -DCONFIG_PREALLOC_TXQ
|
||||||
|
ccflags-y += -DCONFIG_DPD -DCONFIG_FORCE_DPD_CALIB
|
||||||
|
ccflags-y += -DCONFIG_FILTER_TCP_ACK
|
||||||
|
ccflags-y += -DCONFIG_RESV_MEM_SUPPORT
|
||||||
|
ccflags-y += -DCONFIG_SHUTDOWN_CALLBACK
|
||||||
|
ccflags-y += -DCONFIG_MCC
|
||||||
|
ccflags-y += -DCONFIG_RFTEST
|
||||||
|
ccflags-y += -DCONFIG_RX_NETIF_RECV_SKB
|
||||||
|
ccflags-y += -DAICWF_RX_REORDER
|
||||||
|
ccflags-y += -DAICWF_ARP_OFFLOAD
|
||||||
|
|
||||||
|
# FW/IPC sizing (vendor 8800DCDW u02 variant)
|
||||||
|
ccflags-y += -DNX_VIRT_DEV_MAX=4
|
||||||
|
ccflags-y += -DNX_REMOTE_STA_MAX_FOR_OLD_IC=10
|
||||||
|
ccflags-y += -DNX_REMOTE_STA_MAX=32
|
||||||
|
ccflags-y += -DNX_MU_GROUP_MAX=62
|
||||||
|
ccflags-y += -DNX_TXDESC_CNT=64
|
||||||
|
ccflags-y += -DNX_TX_MAX_RATES=4
|
||||||
|
ccflags-y += -DNX_CHAN_CTXT_CNT=3
|
||||||
|
ccflags-y += -DDEFAULT_COUNTRY_CODE=\"00\"
|
||||||
|
ccflags-y += -DAIC_TRACE_INCLUDE_PATH=$(src)
|
||||||
|
|
||||||
|
ccflags-y += -I$(srctree)/$(src)/../aic8800_bsp
|
||||||
|
ccflags-y += -Wno-implicit-fallthrough -Wno-unused-function -Wno-unused-variable
|
||||||
|
|
||||||
|
obj-$(CONFIG_AIC8800_WLAN_SUPPORT) += aic8800_fdrv.o
|
||||||
|
aic8800_fdrv-y := \
|
||||||
|
rwnx_msg_tx.o \
|
||||||
|
rwnx_msg_rx.o \
|
||||||
|
rwnx_utils.o \
|
||||||
|
rwnx_cmds.o \
|
||||||
|
rwnx_irqs.o \
|
||||||
|
rwnx_cfgfile.o \
|
||||||
|
rwnx_strs.o \
|
||||||
|
rwnx_rx.o \
|
||||||
|
rwnx_tx.o \
|
||||||
|
rwnx_txq.o \
|
||||||
|
rwnx_main.o \
|
||||||
|
rwnx_mod_params.o \
|
||||||
|
rwnx_mesh.o \
|
||||||
|
rwnx_platform.o \
|
||||||
|
rwnx_dini.o \
|
||||||
|
rwnx_v7.o \
|
||||||
|
ipc_host.o \
|
||||||
|
rwnx_tdls.o \
|
||||||
|
aic_vendor.o \
|
||||||
|
aicwf_compat_8800dc.o \
|
||||||
|
aicwf_compat_8800d80.o \
|
||||||
|
rwnx_wakelock.o \
|
||||||
|
regdb.o \
|
||||||
|
aic_priv_cmd.o \
|
||||||
|
aicwf_rx_prealloc.o \
|
||||||
|
rwnx_radar.o \
|
||||||
|
sdio_host.o \
|
||||||
|
aicwf_txrxif.o \
|
||||||
|
aicwf_sdio.o \
|
||||||
|
aicwf_tcp_ack.o
|
||||||
@@ -0,0 +1,40 @@
|
|||||||
|
/* --- M5: AIC8800DC wifi/BT power sequencing --- */
|
||||||
|
sdio_pwrseq: sdio-pwrseq {
|
||||||
|
compatible = "mmc-pwrseq-simple";
|
||||||
|
pinctrl-names = "default";
|
||||||
|
reset-gpios = <&gpio1 RK_PA2 GPIO_ACTIVE_LOW>;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
/* --- console --- */
|
||||||
|
&uart2 {
|
||||||
|
status = "okay";
|
||||||
|
};
|
||||||
|
|
||||||
|
/* --- eMMC rootfs (M3) --- */
|
||||||
|
&emmc {
|
||||||
|
bus-width = <8>;
|
||||||
|
cap-mmc-highspeed;
|
||||||
|
mmc-hs200-1_8v;
|
||||||
|
non-removable;
|
||||||
|
status = "okay";
|
||||||
|
};
|
||||||
|
|
||||||
|
/* --- M5: AIC8800DC wifi/BT SDIO (on &sdmmc, mmc@ffaa0000 — NOT &sdio) --- */
|
||||||
|
&sdmmc {
|
||||||
|
max-frequency = <50000000>;
|
||||||
|
bus-width = <4>;
|
||||||
|
cap-sd-highspeed;
|
||||||
|
cap-sdio-irq;
|
||||||
|
keep-power-in-suspend;
|
||||||
|
non-removable;
|
||||||
|
rockchip,default-sample-phase = <90>;
|
||||||
|
supports-sdio;
|
||||||
|
mmc-pwrseq = <&sdio_pwrseq>;
|
||||||
|
pinctrl-names = "default";
|
||||||
|
pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_bus4 &sdmmc0_det>;
|
||||||
|
status = "okay";
|
||||||
|
};
|
||||||
|
|
||||||
|
/* --- batch 1: mainline peripherals (wire DT + config) --- */
|
||||||
|
&uart1 {
|
||||||
Reference in New Issue
Block a user