hw/isa/superio: Add the SMC FDC37C669 Super I/O

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180308223946.26784-23-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

MAINTAINERS

@@ -416,6 +416,7 @@ Alpha Machines
 M: Richard Henderson <rth@twiddle.net>
 S: Maintained
 F: hw/alpha/
+F: hw/isa/smc37c669-superio.c
 
 ARM Machines
 ------------

hw/isa/Makefile.objs

@@ -1,5 +1,5 @@
 common-obj-$(CONFIG_ISA_BUS) += isa-bus.o
-common-obj-$(CONFIG_ISA_BUS) += isa-superio.o
+common-obj-$(CONFIG_ISA_BUS) += isa-superio.o smc37c669-superio.o
 common-obj-$(CONFIG_APM) += apm.o
 common-obj-$(CONFIG_I82378) += i82378.o
 common-obj-$(CONFIG_PC87312) += pc87312.o

hw/isa/smc37c669-superio.c

@@ -0,0 +1,115 @@
+/*
+ * SMC FDC37C669 Super I/O controller
+ *
+ * Copyright (c) 2018 Philippe Mathieu-Daudé
+ *
+ * This code is licensed under the GNU GPLv2 and later.
+ * See the COPYING file in the top-level directory.
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "hw/isa/superio.h"
+
+/* UARTs (compatible with NS16450 or PC16550) */
+
+static bool is_serial_enabled(ISASuperIODevice *sio, uint8_t index)
+{
+    return index < 2;
+}
+
+static uint16_t get_serial_iobase(ISASuperIODevice *sio, uint8_t index)
+{
+    return index ? 0x2f8 : 0x3f8;
+}
+
+static unsigned int get_serial_irq(ISASuperIODevice *sio, uint8_t index)
+{
+    return index ? 3 : 4;
+}
+
+/* Parallel port */
+
+static bool is_parallel_enabled(ISASuperIODevice *sio, uint8_t index)
+{
+    return index < 1;
+}
+
+static uint16_t get_parallel_iobase(ISASuperIODevice *sio, uint8_t index)
+{
+    return 0x3bc;
+}
+
+static unsigned int get_parallel_irq(ISASuperIODevice *sio, uint8_t index)
+{
+    return 7;
+}
+
+static unsigned int get_parallel_dma(ISASuperIODevice *sio, uint8_t index)
+{
+    return 3;
+}
+
+/* Diskette controller (Software compatible with the Intel PC8477) */
+
+static bool is_fdc_enabled(ISASuperIODevice *sio, uint8_t index)
+{
+    return index < 1;
+}
+
+static uint16_t get_fdc_iobase(ISASuperIODevice *sio, uint8_t index)
+{
+    return 0x3f0;
+}
+
+static unsigned int get_fdc_irq(ISASuperIODevice *sio, uint8_t index)
+{
+    return 6;
+}
+
+static unsigned int get_fdc_dma(ISASuperIODevice *sio, uint8_t index)
+{
+    return 2;
+}
+
+static void smc37c669_class_init(ObjectClass *klass, void *data)
+{
+    ISASuperIOClass *sc = ISA_SUPERIO_CLASS(klass);
+
+    sc->parallel = (ISASuperIOFuncs){
+        .count = 1,
+        .is_enabled = is_parallel_enabled,
+        .get_iobase = get_parallel_iobase,
+        .get_irq    = get_parallel_irq,
+        .get_dma    = get_parallel_dma,
+    };
+    sc->serial = (ISASuperIOFuncs){
+        .count = 2,
+        .is_enabled = is_serial_enabled,
+        .get_iobase = get_serial_iobase,
+        .get_irq    = get_serial_irq,
+    };
+    sc->floppy = (ISASuperIOFuncs){
+        .count = 1,
+        .is_enabled = is_fdc_enabled,
+        .get_iobase = get_fdc_iobase,
+        .get_irq    = get_fdc_irq,
+        .get_dma    = get_fdc_dma,
+    };
+    sc->ide.count = 0;
+}
+
+static const TypeInfo smc37c669_type_info = {
+    .name          = TYPE_SMC37C669_SUPERIO,
+    .parent        = TYPE_ISA_SUPERIO,
+    .instance_size = sizeof(ISASuperIODevice),
+    .class_size    = sizeof(ISASuperIOClass),
+    .class_init    = smc37c669_class_init,
+};
+
+static void smc37c669_register_types(void)
+{
+    type_register_static(&smc37c669_type_info);
+}
+
+type_init(smc37c669_register_types)

include/hw/isa/superio.h

@@ -55,5 +55,6 @@ typedef struct ISASuperIOClass {
 } ISASuperIOClass;
 
 #define TYPE_FDC37M81X_SUPERIO  "fdc37m81x-superio"
+#define TYPE_SMC37C669_SUPERIO  "smc37c669-superio"
 
 #endif /* HW_ISA_SUPERIO_H */