46 lines
1.6 KiB
Bash
Executable File
46 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Kaisa：辅助开启 SOF IPC 观测并采集 dmesg（需在真机以 root 运行）
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# 详见 docs/OPERATION_Kaisa_SOF_HDMI_Trace.md
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set -euo pipefail
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if [[ "${EUID:-}" -ne 0 ]]; then
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echo "请使用 root 或 sudo 运行本脚本。" >&2
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exit 1
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fi
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DD_CTRL=/sys/kernel/debug/dynamic_debug/control
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if ! mountpoint -q /sys/kernel/debug 2>/dev/null; then
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mount -t debugfs none /sys/kernel/debug || {
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echo "无法挂载 debugfs，请检查内核 CONFIG_DEBUG_FS。" >&2
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exit 1
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}
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fi
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if [[ ! -w "$DD_CTRL" ]]; then
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echo "无法写入 $DD_CTRL" >&2
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exit 1
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fi
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# 与 6.17 树路径一致；若 Unknown，请 grep dynamic_debug/control 中实际 file 名
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for f in \
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sound/soc/sof/ipc3.c \
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sound/soc/sof/ipc3-pcm.c \
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sound/soc/sof/intel/hda-pcm.c \
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sound/soc/sof/intel/hda-dai.c; do
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echo "file $f +p" >> "$DD_CTRL" || echo "警告: 未启用 $f（可能路径不同）" >&2
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done
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echo "已写入 dynamic_debug（+p）。"
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echo ""
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if [[ -r /sys/module/snd_sof/parameters/sof_debug ]]; then
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echo "当前 snd_sof sof_debug=$(cat /sys/module/snd_sof/parameters/sof_debug)"
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echo "若需 IPC 载荷十六进制，/etc/modprobe.d 中设置 options snd_sof sof_debug=0x800 并重启（见文档）。"
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else
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echo "未加载 snd_sof 模块；加载后再 cat /sys/module/snd_sof/parameters/sof_debug"
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fi
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echo ""
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echo "下一步：speaker-test 或播放 HDMI，然后："
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echo " TS=\$(date +%Y%m%d_%H%M%S); KR=\$(uname -r); dmesg -T > /tmp/dmesg_sof_TRACE_jack-Kaisa_\${KR}_\${TS}.txt"
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echo "将 /tmp 下文件复制到仓库 audio_topology/collected/"
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