diff options
Diffstat (limited to 'hw/testdev.c')
| -rw-r--r-- | hw/testdev.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/hw/testdev.c b/hw/testdev.c new file mode 100644 index 000000000..21125d54e --- /dev/null +++ b/hw/testdev.c @@ -0,0 +1,154 @@ +#include <sys/mman.h> +#include "hw.h" +#include "qdev.h" +#include "isa.h" + +struct testdev { + ISADevice dev; + MemoryRegion iomem; + CharDriverState *chr; +}; + +#define TYPE_TESTDEV "testdev" +#define TESTDEV(obj) \ + OBJECT_CHECK(struct testdev, (obj), TYPE_TESTDEV) + +static void test_device_serial_write(void *opaque, uint32_t addr, uint32_t data) +{ + struct testdev *dev = opaque; + uint8_t buf[1] = { data }; + + if (dev->chr) { + qemu_chr_fe_write(dev->chr, buf, 1); + } +} + +static void test_device_exit(void *opaque, uint32_t addr, uint32_t data) +{ + exit(data); +} + +static uint32_t test_device_memsize_read(void *opaque, uint32_t addr) +{ + return ram_size; +} + +static void test_device_irq_line(void *opaque, uint32_t addr, uint32_t data) +{ + struct testdev *dev = opaque; + + qemu_set_irq(isa_get_irq(&dev->dev, addr - 0x2000), !!data); +} + +static uint32 test_device_ioport_data; + +static void test_device_ioport_write(void *opaque, uint32_t addr, uint32_t data) +{ + test_device_ioport_data = data; +} + +static uint32_t test_device_ioport_read(void *opaque, uint32_t addr) +{ + return test_device_ioport_data; +} + +static void test_device_flush_page(void *opaque, uint32_t addr, uint32_t data) +{ + target_phys_addr_t len = 4096; + void *a = cpu_physical_memory_map(data & ~0xffful, &len, 0); + + mprotect(a, 4096, PROT_NONE); + mprotect(a, 4096, PROT_READ|PROT_WRITE); + cpu_physical_memory_unmap(a, len, 0, 0); +} + +static char *iomem_buf; + +static uint32_t test_iomem_readb(void *opaque, target_phys_addr_t addr) +{ + return iomem_buf[addr]; +} + +static uint32_t test_iomem_readw(void *opaque, target_phys_addr_t addr) +{ + return *(uint16_t*)(iomem_buf + addr); +} + +static uint32_t test_iomem_readl(void *opaque, target_phys_addr_t addr) +{ + return *(uint32_t*)(iomem_buf + addr); +} + +static void test_iomem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) +{ + iomem_buf[addr] = val; +} + +static void test_iomem_writew(void *opaque, target_phys_addr_t addr, uint32_t val) +{ + *(uint16_t*)(iomem_buf + addr) = val; +} + +static void test_iomem_writel(void *opaque, target_phys_addr_t addr, uint32_t val) +{ + *(uint32_t*)(iomem_buf + addr) = val; +} + +static const MemoryRegionOps test_iomem_ops = { + .old_mmio = { + .read = { test_iomem_readb, test_iomem_readw, test_iomem_readl, }, + .write = { test_iomem_writeb, test_iomem_writew, test_iomem_writel, }, + }, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +static int init_test_device(ISADevice *isa) +{ + struct testdev *dev = DO_UPCAST(struct testdev, dev, isa); + + register_ioport_write(0xf1, 1, 1, test_device_serial_write, dev); + register_ioport_write(0xf4, 1, 4, test_device_exit, dev); + register_ioport_read(0xd1, 1, 4, test_device_memsize_read, dev); + register_ioport_read(0xe0, 1, 1, test_device_ioport_read, dev); + register_ioport_write(0xe0, 1, 1, test_device_ioport_write, dev); + register_ioport_read(0xe0, 1, 2, test_device_ioport_read, dev); + register_ioport_write(0xe0, 1, 2, test_device_ioport_write, dev); + register_ioport_read(0xe0, 1, 4, test_device_ioport_read, dev); + register_ioport_write(0xe0, 1, 4, test_device_ioport_write, dev); + register_ioport_write(0xe4, 1, 4, test_device_flush_page, dev); + register_ioport_write(0x2000, 24, 1, test_device_irq_line, NULL); + iomem_buf = g_malloc0(0x10000); + memory_region_init_io(&dev->iomem, &test_iomem_ops, dev, + "testdev", 0x10000); + memory_region_add_subregion(isa_address_space(&dev->dev), 0xff000000, + &dev->iomem); + return 0; +} + +static Property testdev_isa_properties[] = { + DEFINE_PROP_CHR("chardev", struct testdev, chr), + DEFINE_PROP_END_OF_LIST(), +}; + +static void testdev_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + ISADeviceClass *k = ISA_DEVICE_CLASS(klass); + + k->init = init_test_device; + dc->props = testdev_isa_properties; +} + +static TypeInfo testdev_info = { + .name = "testdev", + .parent = TYPE_ISA_DEVICE, + .instance_size = sizeof(struct testdev), + .class_init = testdev_class_init, +}; + +static void testdev_register_types(void) +{ + type_register_static(&testdev_info); +} + +type_init(testdev_register_types) |