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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-438dcc26b15sm102018555e9.11.2025.01.31.13.06.50 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 31 Jan 2025 13:06:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1738357612; x=1738962412; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Yx9zBwtSy3gGrxCYpvjzpuUDny+fjTYjt9csPoUwmf4=; b=zxFO5hAcp8+5j6jTtmzp+r+tmo7gGDIrLQv9AZjeV24YCX+kQ+5Cof1vyoV4fPxCSx nai6Rk3/+wBYUdn1HpxoUICcAw+eMMQZvkCuH9SNj4x35LVs/GRirVTpgPuPr9LCAOKj PUBN+aE2bdIqmBI28yBnZ2QN9B/fHgPG0yQe6yMwqGVOehdK/o1HIw8pzhymt4vPvpu0 k+DXOxrHVCZZasIvRv18+M2ExKYrlf3esmU6FIlwb+MkSr2YA6PIIzr4X7OTZCz4jL5q TExAuF/5iPgDXjSupQMsUzedfsmS1qVW3aTLDQk/2pEjcyLQwV9/GY8BagU72E2ubInN WI8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1738357612; x=1738962412; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Yx9zBwtSy3gGrxCYpvjzpuUDny+fjTYjt9csPoUwmf4=; b=iU3heIAfneJAh7b2T8v/+h0tyV4SmyB5L2Lkq0lPVqmP1eN7lXt86oyl+OR2etVu0u xA9TD5vXvOJuNw80MzNZdirlU9uqOh6kMs/HgQma6L2Ou8qiUis7Hr/pLDinRXmZuYqa r6BOKSiUAttpINLszf4i1qITDt6wErOJ45S/7CbXjnHQv9ZTvzLJthxxmU5dJ7EBqjS3 hMhbMktZRZpiPt5U4y89iH/VjunqXNR0i/rfOrqbVcpy+XiD6tP+y3r6FvYRWbi7qsBW bgRT0BlYRqvi3kOPqRvVUIayxN0e3/Cc8hByQZwO4M8pORBbBY3mZNNaGhT1kn2MnmKQ 5Oow== X-Gm-Message-State: AOJu0YwDC2PNJoYdUB52b/IjXIBsGjvX0vKVtjDBG6oNCge69fK/a96k /s3Go9hZBKOf6E9k3BodiUPfUIu8S1njNu3eGE5rFu78Plhz4xnG+ZXSSaKZLDqpS6gIyVusnJx PBDQ= X-Gm-Gg: ASbGncunFVGq/CfLV+tcZC2rE1gyii5BpLb1wqldv6pkXrMIHQejYHgN12vNeSaG3I5 EtdIQxhtInCsGPNbFuNopRFVBG+WUElaCeIFimzWEC5tkfaI1gmUzpXJxl9N6R0RbhDcZ5HKQLL Hbprrqadh2sXpVG6HkJ0cCBsSJxjlENxy+8OgrPfQN5MaEVdnTAz9LY6i0et82ALKC20WZ3vTyo DDNuwjf6vkEqewVuvuBttVNVTCJNWWXhM16lx4AUkIHpHz5pS2pijIqfpUEUszYAgrzX1UK+Jom BnSRevuuIy2uFXLnP3tqYWpz/wk7lJ8feFFShBMRco1LCqVPQpUtONYVPk4m9wzEZw== X-Google-Smtp-Source: AGHT+IFtmVu8oi+o//GaboNDYBJNnpaB/ubHIhDTYcuTLDK1cG+ltJZD3LhM9GLPvE6TbYDaBrNyuQ== X-Received: by 2002:a05:600c:1d27:b0:436:5fc9:30ba with SMTP id 5b1f17b1804b1-438dc429771mr122794815e9.29.1738357611713; Fri, 31 Jan 2025 13:06:51 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Titus Rwantare , Hao Wu , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PULL 18/36] hw/misc/i2c-echo: add tracing Date: Fri, 31 Jan 2025 22:05:01 +0100 Message-ID: <20250131210520.85874-19-philmd@linaro.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20250131210520.85874-1-philmd@linaro.org> References: <20250131210520.85874-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::335; envelope-from=philmd@linaro.org; helo=mail-wm1-x335.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1738357800207019000 From: Titus Rwantare This has been useful when debugging and unsure if the guest is generating i2c traffic. Signed-off-by: Titus Rwantare Reviewed-by: Hao Wu Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-ID: <20250121105935.3069035-1-titusr@google.com> Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/misc/i2c-echo.c | 8 ++++++++ hw/misc/trace-events | 5 +++++ 2 files changed, 13 insertions(+) diff --git a/hw/misc/i2c-echo.c b/hw/misc/i2c-echo.c index 5ae3d0817ea..65d10029dc7 100644 --- a/hw/misc/i2c-echo.c +++ b/hw/misc/i2c-echo.c @@ -13,6 +13,7 @@ #include "qemu/main-loop.h" #include "block/aio.h" #include "hw/i2c/i2c.h" +#include "trace.h" =20 #define TYPE_I2C_ECHO "i2c-echo" OBJECT_DECLARE_SIMPLE_TYPE(I2CEchoState, I2C_ECHO) @@ -80,11 +81,13 @@ static int i2c_echo_event(I2CSlave *s, enum i2c_event e= vent) case I2C_START_RECV: state->pos =3D 0; =20 + trace_i2c_echo_event(DEVICE(s)->canonical_path, "I2C_START_RECV"); break; =20 case I2C_START_SEND: state->pos =3D 0; =20 + trace_i2c_echo_event(DEVICE(s)->canonical_path, "I2C_START_SEND"); break; =20 case I2C_FINISH: @@ -92,12 +95,15 @@ static int i2c_echo_event(I2CSlave *s, enum i2c_event e= vent) state->state =3D I2C_ECHO_STATE_START_SEND; i2c_bus_master(state->bus, state->bh); =20 + trace_i2c_echo_event(DEVICE(s)->canonical_path, "I2C_FINISH"); break; =20 case I2C_NACK: + trace_i2c_echo_event(DEVICE(s)->canonical_path, "I2C_NACK"); break; =20 default: + trace_i2c_echo_event(DEVICE(s)->canonical_path, "UNHANDLED"); return -1; } =20 @@ -112,6 +118,7 @@ static uint8_t i2c_echo_recv(I2CSlave *s) return 0xff; } =20 + trace_i2c_echo_recv(DEVICE(s)->canonical_path, state->data[state->pos]= ); return state->data[state->pos++]; } =20 @@ -119,6 +126,7 @@ static int i2c_echo_send(I2CSlave *s, uint8_t data) { I2CEchoState *state =3D I2C_ECHO(s); =20 + trace_i2c_echo_send(DEVICE(s)->canonical_path, data); if (state->pos > 2) { return -1; } diff --git a/hw/misc/trace-events b/hw/misc/trace-events index cf1abe69285..b35b0e77f7d 100644 --- a/hw/misc/trace-events +++ b/hw/misc/trace-events @@ -390,3 +390,8 @@ ivshmem_flat_read_write_mmr_invalid(uint64_t addr_offse= t) "No ivshmem register m ivshmem_flat_interrupt_invalid_peer(uint16_t peer_id) "Can't interrupt non= -existing peer %u" ivshmem_flat_write_mmr(uint64_t addr_offset) "Write access at offset %"PRI= u64 ivshmem_flat_interrupt_peer(uint16_t peer_id, uint16_t vector_id) "Interru= pting peer ID %u, vector %u..." + +# i2c-echo.c +i2c_echo_event(const char *id, const char *event) "%s: %s" +i2c_echo_recv(const char *id, uint8_t data) "%s: recv 0x%02" PRIx8 +i2c_echo_send(const char *id, uint8_t data) "%s: send 0x%02" PRIx8 --=20 2.47.1