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Tsirkin" , Eduardo Habkost , Zhao Liu , kvm@vger.kernel.org, Michael Tokarev , Cameron Esfahani , qemu-block@nongnu.org, Paolo Bonzini , qemu-trivial@nongnu.org, Laurent Vivier , Richard Henderson , Roman Bolshakov , Phil Dennis-Jordan , John Snow , Fabiano Rosas , Gerd Hoffmann , Sunil Muthuswamy , Marcelo Tosatti , Bernhard Beschow Subject: [PATCH v3 02/10] hw/audio/pcspk: Add I/O trace events Date: Sun, 19 Oct 2025 23:02:55 +0200 Message-ID: <20251019210303.104718-3-shentey@gmail.com> X-Mailer: git-send-email 2.51.1.dirty In-Reply-To: <20251019210303.104718-1-shentey@gmail.com> References: <20251019210303.104718-1-shentey@gmail.com> MIME-Version: 1.0 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::52c; envelope-from=shentey@gmail.com; helo=mail-ed1-x52c.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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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 @gmail.com) X-ZM-MESSAGEID: 1760907927484158500 Content-Type: text/plain; charset="utf-8" Allows to see how the guest interacts with the device. Signed-off-by: Bernhard Beschow Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/audio/pcspk.c | 10 +++++++++- hw/audio/trace-events | 4 ++++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/hw/audio/pcspk.c b/hw/audio/pcspk.c index a419161b5b..f8020593b0 100644 --- a/hw/audio/pcspk.c +++ b/hw/audio/pcspk.c @@ -34,6 +34,7 @@ #include "hw/audio/pcspk.h" #include "qapi/error.h" #include "qom/object.h" +#include "trace.h" =20 #define PCSPK_BUF_LEN 1792 #define PCSPK_SAMPLE_RATE 32000 @@ -137,13 +138,18 @@ static uint64_t pcspk_io_read(void *opaque, hwaddr ad= dr, { PCSpkState *s =3D opaque; PITChannelInfo ch; + uint8_t val; =20 pit_get_channel_info(s->pit, 2, &ch); =20 s->dummy_refresh_clock ^=3D (1 << 4); =20 - return ch.gate | (s->data_on << 1) | s->dummy_refresh_clock | + val =3D ch.gate | (s->data_on << 1) | s->dummy_refresh_clock | (ch.out << 5); + + trace_pcspk_io_read(s->iobase, val); + + return val; } =20 static void pcspk_io_write(void *opaque, hwaddr addr, uint64_t val, @@ -152,6 +158,8 @@ static void pcspk_io_write(void *opaque, hwaddr addr, u= int64_t val, PCSpkState *s =3D opaque; const int gate =3D val & 1; =20 + trace_pcspk_io_write(s->iobase, val); + s->data_on =3D (val >> 1) & 1; pit_set_gate(s->pit, 2, gate); if (s->voice) { diff --git a/hw/audio/trace-events b/hw/audio/trace-events index b8ef572767..30f5921545 100644 --- a/hw/audio/trace-events +++ b/hw/audio/trace-events @@ -23,6 +23,10 @@ hda_audio_format(const char *stream, int chan, const cha= r *fmt, int freq) "st %s hda_audio_adjust(const char *stream, int pos) "st %s, pos %d" hda_audio_overrun(const char *stream) "st %s" =20 +# pcspk.c +pcspk_io_read(uint16_t addr, uint8_t val) "[0x%"PRIx16"] -> 0x%"PRIx8 +pcspk_io_write(uint16_t addr, uint8_t val) "[0x%"PRIx16"] <- 0x%"PRIx8 + #via-ac97.c via_ac97_codec_write(uint8_t addr, uint16_t val) "0x%x <- 0x%x" via_ac97_sgd_fetch(uint32_t curr, uint32_t addr, char stop, char eol, char= flag, uint32_t len) "curr=3D0x%x addr=3D0x%x %c%c%c len=3D%d" --=20 2.51.1.dirty