feat(video): modularize iris V4L2 runner; add stack switching, Kodiak FW hot-swap, and resilient fetch

- Split responsibilities across run.sh, functestlib.sh, and lib_video.sh
  - run.sh: early rootfs resize (>=2GiB), early bundle fetch, platform-aware
    stack selection, udev refresh/prune, structured loop + results.
  - lib_video.sh: platform detect (lemans/monaco/kodiak), runtime & persistent
    blacklists, hot-switch helper (modprobe→insmod fallback), validation,
    DMESG triage, jq-less JSON clip parsing, Kodiak firmware helpers:
      * video_kodiak_install_firmware: scan /opt for
        vpu20_p1_gen2 backups; install to /lib/firmware path
      * video_kodiak_swap_and_reload: install + remoteproc reload → module
        reload → unbind/bind; refresh /dev/video* on success
  - functestlib.sh: moved ensure_rootfs_min_size here for reuse.
- Networking: if ensure_network_online() is present (as used in audio),
  call it before bundle fetch; on offline, decode cases are skipped.

Signed-off-by: Srikanth Muppandam <[email protected]>

Author: smuppand

Runner/suites/Multimedia/Video/README_Video.md

@@ -0,0 +1,265 @@
+# Iris V4L2 Video Test Scripts for Qualcomm Linux (Yocto)
+
+**Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.**  
+**SPDX-License-Identifier: BSD-3-Clause-Clear**
+
+---
+
+## Overview
+
+These scripts automate validation of video **encoding** and **decoding** on Qualcomm Linux platforms running a Yocto-based rootfs.
+They drive the public `iris_v4l2_test` app: <https://github.com/quic/v4l-video-test-app>.
+
+The suite includes a **reboot-free video stack switcher** (upstream ↔ downstream), a **Kodiak (QCS6490/RB3gen2) firmware swap flow**, and robust **pre-flight checks** (rootfs size, network bootstrap, module sanity, device nodes).
+
+---
+
+## What’s New (since 2025‑09‑26)
+
+- **Pre-download rootfs auto‑resize**
+  - New `ensure_rootfs_min_size` (now in `functestlib.sh`) verifies `/` has at least **2 GiB** available and, if the root partition is `/dev/disk/by-partlabel/rootfs`, runs:
+    ```sh
+    resize2fs /dev/disk/by-partlabel/rootfs
+    ```
+  - Invoked **before** any clip bundle download.
+
+- **Kodiak upstream: auto‑install backup firmware before switching**
+  - `video_kodiak_install_firmware` (in `lib_video.sh`) looks for a recent backup blob under **`$VIDEO_FW_BACKUP_DIR`** (defaults to `/opt/video-fw-backups`) **and legacy `/opt` patterns**, then copies it to:
+    ```
+    /lib/firmware/qcom/vpu/vpu20_p1_gen2.mbn
+    ```
+  - Attempts **remoteproc stop → firmware swap → start**, with fallback to **module reload** and **platform unbind/bind**.
+  - Automatically runs when `--platform kodiak --stack upstream`.
+
+- **Network bootstrap before downloads (Ethernet → Wi‑Fi)**
+  - `ensure_network_online` first tries wired DHCP; if still offline and **Wi‑Fi credentials are available**, it attempts:
+    1) `nmcli dev wifi connect` (with a **key‑mgmt fallback** that creates a PSK connection if NM complains: `802-11-wireless-security.key-mgmt: property is missing`), then
+    2) `wpa_supplicant + udhcpc` as a final fallback.
+  - Credentials are taken from environment **`SSID`/`PASSWORD`** or an optional `./ssid_list.txt` (first line: `ssid password`).
+
+- **App path hardening**
+  - If `--app` points to a file that exists but is not executable, the runner does a best‑effort `chmod +x` and proceeds.
+
+- **Platform‑aware hard gates & clearer logging**
+  - Upstream/Downstream validation is **platform specific** (lemans/monaco vs. kodiak).
+  - udev refresh + stale node pruning for `/dev/video*` and `/dev/media*` after any stack change.
+
+---
+
+## Features
+
+- Pure **V4L2** driver-level tests using `iris_v4l2_test`
+- **Encode** (YUV → H.264/H.265) and **Decode** (H.264/H.265/VP9 → YUV)
+- **Yocto**-friendly, POSIX shell with BusyBox-safe paths
+- Parse & run multiple JSON configs; auto-detect **encode/decode**
+- **Auto-fetch** missing input clips (retries, BusyBox `wget` compatible)
+- **Rootfs size guard** (auto‑resize) **before** fetching assets
+- **Network bootstrap** (Ethernet → Wi‑Fi via `nmcli`/`wpa_supplicant`) when needed for downloads
+- Timeout, repeat, dry-run, JUnit XML, dmesg triage
+- **Stack switcher**: upstream ↔ downstream without reboot
+- **Kodiak firmware live swap** with backup/restore helpers
+- **udev refresh + prune** of stale device nodes
+
+---
+
+## Directory Layout
+
+```bash
+Runner/
+├── suites/
+│   └── Multimedia/
+│       └── Video/
+│           ├── README_Video.md
+│           └── Video_V4L2_Runner/
+│               ├── h264Decoder.json
+│               ├── h265Decoder.json
+│               ├── vp9Decoder.json
+│               ├── h264Encoder.json
+│               ├── h265Encoder.json
+│               └── run.sh
+└── utils/
+    ├── functestlib.sh
+    └── lib_video.sh
+```
+
+---
+
+## Quick Start
+
+```bash
+git clone <this-repo>
+cd <this-repo>
+
+# Copy to target
+scp -r Runner user@<target_ip>:<target_path>
+ssh user@<target_ip>
+
+cd <target_path>/Runner
+./run-test.sh Video_V4L2_Runner
+```
+
+> Results land under: `Runner/suites/Multimedia/Video/Video_V4L2_Runner/`
+
+---
+
+## Runner CLI (run.sh)
+
+| Option | Description |
+|---|---|
+| `--config path.json` | Run a specific config file |
+| `--dir DIR` | Directory to search for configs |
+| `--pattern GLOB` | Filter configs by glob pattern |
+| `--extract-input-clips true|false` | Auto-fetch missing clips (default: `true`) |
+| `--timeout S` | Timeout per test (default: `60`) |
+| `--strict` | Treat dmesg warnings as failures |
+| `--no-dmesg` | Disable dmesg scanning |
+| `--max N` | Run at most `N` tests |
+| `--stop-on-fail` | Abort suite on first failure |
+| `--loglevel N` | Log level passed to `iris_v4l2_test` |
+| `--repeat N` | Repeat each test `N` times |
+| `--repeat-delay S` | Delay between repeats |
+| `--repeat-policy all|any` | PASS if all runs pass, or any run passes |
+| `--junit FILE` | Write JUnit XML |
+| `--dry-run` | Print commands only |
+| `--verbose` | Verbose runner logs |
+| `--app /path/to/iris_v4l2_test` | Override test app path |
+| `--stack auto|upstream|downstream|base|overlay|up|down` | Select target stack |
+| `--platform lemans|monaco|kodiak` | Force platform (else auto-detect) |
+| `--downstream-fw PATH` | **Kodiak**: path to DS firmware (e.g. `vpu20_1v.mbn`) |
+
+---
+
+## Pre‑Flight: Rootfs Size & Network
+
+### Auto‑resize before downloads
+The runner calls `ensure_rootfs_min_size 2` **before** any download. If `/` is on `/dev/disk/by-partlabel/rootfs` and total size is below ~2 GiB, it executes:
+```sh
+resize2fs /dev/disk/by-partlabel/rootfs
+```
+
+### Network bootstrap (if offline)
+If the target is offline when a clip bundle is needed:
+
+1. Tries Ethernet DHCP (safe retries)
+2. If **Wi‑Fi creds** are available, tries:
+   - `nmcli dev wifi connect "<ssid>" password "<pass>" ifname <iface>`  
+     If NetworkManager complains about missing key‑mgmt, it auto‑falls back to:  
+     ```sh
+     nmcli con add type wifi ifname <iface> con-name auto-<ssid> ssid "<ssid>" \
+       wifi-sec.key-mgmt wpa-psk wifi-sec.psk "<pass>"
+     nmcli con up auto-<ssid>
+     ```
+   - If still offline, uses `wpa_supplicant + udhcpc`
+
+**Provide credentials via:**
+```sh
+export SSID="Hydra"
+export PASSWORD="K5x48Vz3"
+# or create ./ssid_list.txt with:  Hydra K5x48Vz3
+```
+
+---
+
+## Stack Selection & Validation
+
+- **lemans/monaco**
+  - **Upstream**: `qcom_iris` + `iris_vpu`
+  - **Downstream**: `iris_vpu` only (and *no* `qcom_iris`)
+
+- **kodiak**
+  - **Upstream**: `venus_core`, `venus_dec`, `venus_enc`
+  - **Downstream**: `iris_vpu`
+
+The runner:
+1. Prints **pre/post** module snapshots and any runtime/persistent modprobe blocks
+2. Switches stacks without reboot (uses runtime blacklists under `/run/modprobe.d`)
+3. **Refreshes** `/dev/video*` & `/dev/media*` with udev and **prunes** stale nodes
+
+---
+
+## Kodiak Firmware Flows
+
+### Downstream (custom blob)
+When `--stack downstream` and you pass `--downstream-fw /path/to/vpu20_1v.mbn`:
+1. The blob is copied to: `/lib/firmware/qcom/vpu/vpu20_p1_gen2.mbn`
+2. Previous image is backed up to: `/opt/video-fw-backups/vpu20_p1_gen2.mbn.<timestamp>.bak`
+3. Runner tries **remoteproc restart**, then **module reload**, then **unbind/bind**
+
+### Upstream (restore a backup before switch)
+When `--stack upstream` on **kodiak**, the runner tries to **restore a known‑good backup** to `/lib/firmware/qcom/vpu/vpu20_p1_gen2.mbn` **before** switching:
+- Search order:
+  1. `$VIDEO_FW_BACKUP_DIR` (default `/opt/video-fw-backups`), newest `vpu20_p1_gen2.mbn.*.bak`
+  2. Legacy `/opt` patterns (e.g., `vpu20_p1_gen2.mbn.*.bak`)
+- Then it attempts **remoteproc restart**; falls back as needed.
+
+**Tip:** If you maintain backups under a custom path:
+```sh
+export VIDEO_FW_BACKUP_DIR=/opt
+./run.sh --platform kodiak --stack upstream
+```
+
+---
+
+## Examples
+
+### Run all configs with auto stack
+```sh
+./run.sh
+```
+
+### Force downstream on lemans/monaco
+```sh
+./run.sh --stack downstream
+```
+
+### Force upstream on lemans/monaco
+```sh
+./run.sh --stack upstream
+```
+
+### Kodiak: downstream with custom firmware (live swap)
+```sh
+./run.sh --platform kodiak --stack downstream --downstream-fw /data/fw/vpu20_1v.mbn
+```
+
+### Kodiak: upstream with automatic backup restore
+```sh
+./run.sh --platform kodiak --stack upstream
+# optionally pin the backup directory
+VIDEO_FW_BACKUP_DIR=/opt ./run.sh --platform kodiak --stack upstream
+```
+
+### Ensure Wi‑Fi is used for downloads (if needed)
+```sh
+export SSID="Hydra"
+export PASSWORD="K5x48Vz3"
+./run.sh --extract-input-clips true
+```
+
+### Use a specific app binary
+```sh
+./run.sh --app /data/vendor/iris_test_app/iris_v4l2_test --stack upstream
+```
+
+### Run only H.265 decode
+```sh
+./run.sh --pattern '*h265*Decoder.json'
+```
+
+---
+
+## Troubleshooting
+
+- **“No backup firmware found” on kodiak upstream switch**  
+  Ensure your backups exist under `/opt/video-fw-backups` **or** legacy `/opt` with a name like `vpu20_p1_gen2.mbn.<timestamp>.bak`, or set `VIDEO_FW_BACKUP_DIR`.
+
+- **Upstream/Downstream mismatch**  
+  Check the **pre/post module snapshots**; the runner will explicitly log which modules are present/absent.
+
+- **No `/dev/video*`**  
+  The runner triggers udev and prunes stale nodes; verify udev is available and rules are active.
+
+- **Download fails**  
+  Ensure time is sane (TLS), network is reachable, and provide Wi‑Fi creds via env or `ssid_list.txt`. The downloader uses BusyBox‑compatible flags with retries.
+
+---

Runner/suites/Multimedia/Video/Video_V4L2_Runner/README_Video.md

@@ -1,20 +1,20 @@
-{
-    "ExecutionMode": "Sequential",
-    "TestCases": [
-        {
-            "Name" : "Decoder Testcase",
-            "TestConfigs" : {
-                "Domain": "Decoder",
-                "InputPath": "./simple_AVC_720p_10fps_90frames.264",
-                "NumFrames": -1,
-                "CodecName": "AVC",
-                "PixelFormat": "NV12",
-                "Width": 1280,
-                "Height": 720,
-                "Outputpath": "./output_simple_nv12_720p_90frms.yuv",
-                "InputBufferCount": 16,
-                "OutputBufferCount": 16
-            }
-        }
-    ]
-}
+{
+    "ExecutionMode": "Sequential",
+    "TestCases": [
+        {
+            "Name" : "H264 Decoder Testcase",
+            "TestConfigs" : {
+                "Domain": "Decoder",
+                "InputPath": "./720p_AVC.h264",
+                "NumFrames": -1,
+                "CodecName": "AVC",
+                "PixelFormat": "NV12",
+                "Width": 1280,
+                "Height": 720,
+                "Outputpath": "./720p_AVC.yuv",
+                "InputBufferCount": 16,
+                "OutputBufferCount": 16
+            }
+        }
+    ]
+}