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| author | Mark Cave-Ayland | 2021-03-04 23:10:56 +0100 |
|---|---|---|
| committer | Mark Cave-Ayland | 2021-03-07 11:39:05 +0100 |
| commit | 4e0ed62937d0498295457c2e1d8282a24ba140cb (patch) | |
| tree | 5dd311c0ccc9c0982c69403b66def498dcbaeda5 /hw/scsi | |
| parent | esp: remove old deferred command completion mechanism (diff) | |
| download | qemu-4e0ed62937d0498295457c2e1d8282a24ba140cb.tar.gz qemu-4e0ed62937d0498295457c2e1d8282a24ba140cb.tar.xz qemu-4e0ed62937d0498295457c2e1d8282a24ba140cb.zip | |
esp: raise interrupt after every non-DMA byte transferred to the FIFO
This matches the description in the datasheet and is required as support for
non-DMA transfers is added.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-36-mark.cave-ayland@ilande.co.uk>
Diffstat (limited to 'hw/scsi')
| -rw-r--r-- | hw/scsi/esp.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index eb6681ca66..4ac299651f 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -760,6 +760,12 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val) s->ti_size++; s->ti_buf[s->ti_wptr++] = val & 0xff; } + + /* Non-DMA transfers raise an interrupt after every byte */ + if (s->rregs[ESP_CMD] == CMD_TI) { + s->rregs[ESP_RINTR] |= INTR_FC | INTR_BS; + esp_raise_irq(s); + } break; case ESP_CMD: s->rregs[saddr] = val; |