diff mbox series

[PULL,32/36] hw/scsi/esp-pci: set DMA_STAT_BCMBLT when BLAST command issued

Message ID 20240119113507.31951-33-philmd@linaro.org
State Accepted
Commit c2d7de557d19ec76eb83b87b6bf77c8114e2f183
Headers show
Series [PULL,01/36] hw/timer/hpet: Convert DPRINTF to trace events | expand

Commit Message

Philippe Mathieu-Daudé Jan. 19, 2024, 11:35 a.m. UTC 
From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

Even though the BLAST command isn't fully implemented in QEMU, the DMA_STAT_BCMBLT
bit should be set after the command has been issued to indicate that the command
has completed.

This fixes an issue with the DC390 DOS driver which issues the BLAST command as
part of its normal error recovery routine at startup, and otherwise sits in a
tight loop waiting for DMA_STAT_BCMBLT to be set before continuing.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-ID: <20240112131529.515642-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/scsi/esp-pci.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/hw/scsi/esp-pci.c b/hw/scsi/esp-pci.c
index 875a49199d..42d9d2e483 100644
--- a/hw/scsi/esp-pci.c
+++ b/hw/scsi/esp-pci.c
@@ -124,6 +124,7 @@  static void esp_pci_handle_blast(PCIESPState *pci, uint32_t val)
 {
     trace_esp_pci_dma_blast(val);
     qemu_log_mask(LOG_UNIMP, "am53c974: cmd BLAST not implemented\n");
+    pci->dma_regs[DMA_STAT] |= DMA_STAT_BCMBLT;
 }
 
 static void esp_pci_handle_abort(PCIESPState *pci, uint32_t val)