hw/mips/jazz: create ESP device directly via qdev

MIPS jazz is the last user of the legacy esp_init() function so move creation
of the ESP device over to use qdev.

Note that the esp_reset and dma_enable qemu_irqs are currently unused and so
we do not wire these up and instead remove the variables to prevent the
compiler emitting unused variable warnings.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20180613094727.11326-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Hervé Poussineau <hpoussin@reactos.org>

hw/mips/mips_jazz.c

@@ -145,10 +145,10 @@ static void mips_jazz_init(MachineState *machine,
     ISABus *isa_bus;
     ISADevice *pit;
     DriveInfo *fds[MAX_FD];
-    qemu_irq esp_reset, dma_enable;
     MemoryRegion *ram = g_new(MemoryRegion, 1);
     MemoryRegion *bios = g_new(MemoryRegion, 1);
     MemoryRegion *bios2 = g_new(MemoryRegion, 1);
+    SysBusESPState *sysbus_esp;
     ESPState *esp;
 
     /* init CPUs */
@@ -281,8 +281,21 @@ static void mips_jazz_init(MachineState *machine,
     }
 
     /* SCSI adapter */
-    esp = esp_init(0x80002000, 0, rc4030_dma_read, rc4030_dma_write, dmas[0],
-                   qdev_get_gpio_in(rc4030, 5), &esp_reset, &dma_enable);
+    dev = qdev_create(NULL, TYPE_ESP);
+    sysbus_esp = ESP_STATE(dev);
+    esp = &sysbus_esp->esp;
+    esp->dma_memory_read = rc4030_dma_read;
+    esp->dma_memory_write = rc4030_dma_write;
+    esp->dma_opaque = dmas[0];
+    sysbus_esp->it_shift = 0;
+    /* XXX for now until rc4030 has been changed to use DMA enable signal */
+    esp->dma_enabled = 1;
+    qdev_init_nofail(dev);
+
+    sysbus = SYS_BUS_DEVICE(dev);
+    sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 5));
+    sysbus_mmio_map(sysbus, 0, 0x80002000);
+
     scsi_bus_legacy_handle_cmdline(&esp->bus);
 
     /* Floppy */