Use qemu_irq for a reset signal between DMA and ESP/Lance

[qemu] / hw / esp.c

diff --git a/hw/esp.c b/hw/esp.c
index 627d90c..10d4cad 100644 (file)
--- a/hw/esp.c
+++ b/hw/esp.c
@@ -51,6 +51,7 @@ do { printf("ESP: " fmt , ##args); } while (0)
 typedef struct ESPState ESPState;
 
 struct ESPState {
+    qemu_irq irq;
     BlockDriverState **bd;
     uint8_t rregs[ESP_REGS];
     uint8_t wregs[ESP_REGS];
@@ -126,7 +127,7 @@ static int get_cmd(ESPState *s, uint8_t *buf)
        s->rregs[4] = STAT_IN;
        s->rregs[5] = INTR_DC;
        s->rregs[6] = SEQ_0;
-       espdma_raise_irq(s->dma_opaque);
+       qemu_irq_raise(s->irq);
        return 0;
     }
     s->current_dev = s->scsi_dev[target];
@@ -156,7 +157,7 @@ static void do_cmd(ESPState *s, uint8_t *buf)
     }
     s->rregs[5] = INTR_BS | INTR_FC;
     s->rregs[6] = SEQ_CD;
-    espdma_raise_irq(s->dma_opaque);
+    qemu_irq_raise(s->irq);
 }
 
 static void handle_satn(ESPState *s)
@@ -178,7 +179,7 @@ static void handle_satn_stop(ESPState *s)
         s->rregs[4] = STAT_IN | STAT_TC | STAT_CD;
         s->rregs[5] = INTR_BS | INTR_FC;
         s->rregs[6] = SEQ_CD;
-        espdma_raise_irq(s->dma_opaque);
+        qemu_irq_raise(s->irq);
     }
 }
 
@@ -198,7 +199,7 @@ static void write_response(ESPState *s)
        s->ti_wptr = 0;
        s->rregs[7] = 2;
     }
-    espdma_raise_irq(s->dma_opaque);
+    qemu_irq_raise(s->irq);
 }
 
 static void esp_dma_done(ESPState *s)
@@ -209,7 +210,7 @@ static void esp_dma_done(ESPState *s)
     s->rregs[7] = 0;
     s->rregs[0] = 0;
     s->rregs[1] = 0;
-    espdma_raise_irq(s->dma_opaque);
+    qemu_irq_raise(s->irq);
 }
 
 static void esp_do_dma(ESPState *s)
@@ -343,6 +344,12 @@ static void esp_reset(void *opaque)
     s->do_cmd = 0;
 }
 
+static void parent_esp_reset(void *opaque, int irq, int level)
+{
+    if (level)
+        esp_reset(opaque);
+}
+
 static uint32_t esp_mem_readb(void *opaque, target_phys_addr_t addr)
 {
     ESPState *s = opaque;
@@ -362,7 +369,7 @@ static uint32_t esp_mem_readb(void *opaque, target_phys_addr_t addr)
             } else {
                 s->rregs[2] = s->ti_buf[s->ti_rptr++];
             }
-            espdma_raise_irq(s->dma_opaque);
+            qemu_irq_raise(s->irq);
        }
        if (s->ti_size == 0) {
             s->ti_rptr = 0;
@@ -373,7 +380,7 @@ static uint32_t esp_mem_readb(void *opaque, target_phys_addr_t addr)
         // interrupt
         // Clear interrupt/error status bits
         s->rregs[4] &= ~(STAT_IN | STAT_GE | STAT_PE);
-       espdma_clear_irq(s->dma_opaque);
+       qemu_irq_lower(s->irq);
         break;
     default:
        break;
@@ -436,7 +443,7 @@ static void esp_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
            DPRINTF("Bus reset (%2.2x)\n", val);
            s->rregs[5] = INTR_RST;
             if (!(s->wregs[8] & 0x40)) {
-                espdma_raise_irq(s->dma_opaque);
+                qemu_irq_raise(s->irq);
             }
            break;
        case 0x10:
@@ -463,6 +470,9 @@ static void esp_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
            DPRINTF("Set ATN & stop (%2.2x)\n", val);
            handle_satn_stop(s);
            break;
+        case 0x44:
+            DPRINTF("Enable selection (%2.2x)\n", val);
+            break;
        default:
            DPRINTF("Unhandled ESP command (%2.2x)\n", val);
            break;
@@ -565,7 +575,7 @@ void esp_scsi_attach(void *opaque, BlockDriverState *bd, int id)
 }
 
 void *esp_init(BlockDriverState **bd, target_phys_addr_t espaddr,
-               void *dma_opaque)
+               void *dma_opaque, qemu_irq irq, qemu_irq *reset)
 {
     ESPState *s;
     int esp_io_memory;
@@ -575,8 +585,8 @@ void *esp_init(BlockDriverState **bd, target_phys_addr_t espaddr,
         return NULL;
 
     s->bd = bd;
+    s->irq = irq;
     s->dma_opaque = dma_opaque;
-    sparc32_dma_set_reset_data(dma_opaque, esp_reset, s);
 
     esp_io_memory = cpu_register_io_memory(0, esp_mem_read, esp_mem_write, s);
     cpu_register_physical_memory(espaddr, ESP_SIZE, esp_io_memory);
@@ -586,5 +596,7 @@ void *esp_init(BlockDriverState **bd, target_phys_addr_t espaddr,
     register_savevm("esp", espaddr, 3, esp_save, esp_load, s);
     qemu_register_reset(esp_reset, s);
 
+    *reset = *qemu_allocate_irqs(parent_esp_reset, s, 1);
+
     return s;
 }