1 files changed, 15 insertions, 0 deletions
diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h
index adab63d1c9..6ba47dac41 100644
--- a/include/hw/scsi/esp.h
+++ b/include/hw/scsi/esp.h
@@ -14,10 +14,18 @@ typedef void (*ESPDMAMemoryReadWriteFunc)(void *opaque, uint8_t *buf, int len);
 
 typedef struct ESPState ESPState;
 
+enum pdma_origin_id {
+    PDMA,
+    TI,
+    CMD,
+    ASYNC,
+};
+
 struct ESPState {
     uint8_t rregs[ESP_REGS];
     uint8_t wregs[ESP_REGS];
     qemu_irq irq;
+    qemu_irq irq_data;
     uint8_t chip_id;
     bool tchi_written;
     int32_t ti_size;
@@ -48,6 +56,12 @@ struct ESPState {
     ESPDMAMemoryReadWriteFunc dma_memory_write;
     void *dma_opaque;
     void (*dma_cb)(ESPState *s);
+    uint8_t pdma_buf[32];
+    int pdma_origin;
+    uint32_t pdma_len;
+    uint32_t pdma_start;
+    uint32_t pdma_cur;
+    void (*pdma_cb)(ESPState *s);
 };
 
 #define TYPE_ESP "esp"
@@ -59,6 +73,7 @@ typedef struct {
     /*< public >*/
 
     MemoryRegion iomem;
+    MemoryRegion pdma;
     uint32_t it_shift;
     ESPState esp;
 } SysBusESPState;