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esp.c: consolidate DMA and PDMA logic in STATUS and MESSAGE IN phases 

This allows the removal of duplicate logic shared between the two implementations.
Note that we restrict esp_raise_drq() to PDMA to help reduce the log verbosity
for normal DMA.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-83-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Mark Cave-Ayland 2024-01-12 12:54:14 +00:00
parent 406e8a3e92
commit 421d1ca509
1 changed files with 3 additions and 4 deletions
hw/scsi
esp.c

7
hw/scsi/esp.c
View File

@ -593,12 +593,11 @@ static void esp_do_dma(ESPState *s)
if (s->dma_memory_write) {
s->dma_memory_write(s->dma_opaque, buf, len);
esp_set_tc(s, esp_get_tc(s) - len);
} else {
fifo8_push_all(&s->fifo, buf, len);
esp_set_tc(s, esp_get_tc(s) - len);
}
esp_set_tc(s, esp_get_tc(s) - len);
esp_set_phase(s, STAT_MI);
if (esp_get_tc(s) > 0) {
@ -629,12 +628,12 @@ static void esp_do_dma(ESPState *s)
if (s->dma_memory_write) {
s->dma_memory_write(s->dma_opaque, buf, len);
esp_set_tc(s, esp_get_tc(s) - len);
} else {
fifo8_push_all(&s->fifo, buf, len);
esp_set_tc(s, esp_get_tc(s) - len);
}
esp_set_tc(s, esp_get_tc(s) - len);
/* Raise end of command interrupt */
s->rregs[ESP_RINTR] |= INTR_FC;
esp_raise_irq(s);