Allows to see how the guest interacts with the device. Signed-off-by: Bernhard Beschow --- 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" #define PCSPK_BUF_LEN 1792 #define PCSPK_SAMPLE_RATE 32000 @@ -137,13 +138,18 @@ static uint64_t pcspk_io_read(void *opaque, hwaddr addr, { PCSpkState *s = opaque; PITChannelInfo ch; + uint8_t val; pit_get_channel_info(s->pit, 2, &ch); s->dummy_refresh_clock ^= (1 << 4); - return ch.gate | (s->data_on << 1) | s->dummy_refresh_clock | + val = ch.gate | (s->data_on << 1) | s->dummy_refresh_clock | (ch.out << 5); + + trace_pcspk_io_read(s->iobase, val); + + return val; } 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, uint64_t val, PCSpkState *s = opaque; const int gate = val & 1; + trace_pcspk_io_write(s->iobase, val); + s->data_on = (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 char *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" +# 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=0x%x addr=0x%x %c%c%c len=%d" -- 2.51.1.dirty