diff options
Diffstat (limited to 'qemu/hw/nvram/ds1225y.c')
| -rw-r--r-- | qemu/hw/nvram/ds1225y.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/qemu/hw/nvram/ds1225y.c b/qemu/hw/nvram/ds1225y.c deleted file mode 100644 index 57d5ab215..000000000 --- a/qemu/hw/nvram/ds1225y.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * QEMU NVRAM emulation for DS1225Y chip - * - * Copyright (c) 2007-2008 Hervé Poussineau - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include "qemu/osdep.h" -#include "hw/sysbus.h" -#include "trace.h" - -typedef struct { - MemoryRegion iomem; - uint32_t chip_size; - char *filename; - FILE *file; - uint8_t *contents; -} NvRamState; - -static uint64_t nvram_read(void *opaque, hwaddr addr, unsigned size) -{ - NvRamState *s = opaque; - uint32_t val; - - val = s->contents[addr]; - trace_nvram_read(addr, val); - return val; -} - -static void nvram_write(void *opaque, hwaddr addr, uint64_t val, - unsigned size) -{ - NvRamState *s = opaque; - - val &= 0xff; - trace_nvram_write(addr, s->contents[addr], val); - - s->contents[addr] = val; - if (s->file) { - fseek(s->file, addr, SEEK_SET); - fputc(val, s->file); - fflush(s->file); - } -} - -static const MemoryRegionOps nvram_ops = { - .read = nvram_read, - .write = nvram_write, - .impl = { - .min_access_size = 1, - .max_access_size = 1, - }, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static int nvram_post_load(void *opaque, int version_id) -{ - NvRamState *s = opaque; - - /* Close file, as filename may has changed in load/store process */ - if (s->file) { - fclose(s->file); - } - - /* Write back nvram contents */ - s->file = fopen(s->filename, "wb"); - if (s->file) { - /* Write back contents, as 'wb' mode cleaned the file */ - if (fwrite(s->contents, s->chip_size, 1, s->file) != 1) { - printf("nvram_post_load: short write\n"); - } - fflush(s->file); - } - - return 0; -} - -static const VMStateDescription vmstate_nvram = { - .name = "nvram", - .version_id = 0, - .minimum_version_id = 0, - .post_load = nvram_post_load, - .fields = (VMStateField[]) { - VMSTATE_VARRAY_UINT32(contents, NvRamState, chip_size, 0, - vmstate_info_uint8, uint8_t), - VMSTATE_END_OF_LIST() - } -}; - -#define TYPE_DS1225Y "ds1225y" -#define DS1225Y(obj) OBJECT_CHECK(SysBusNvRamState, (obj), TYPE_DS1225Y) - -typedef struct { - SysBusDevice parent_obj; - - NvRamState nvram; -} SysBusNvRamState; - -static int nvram_sysbus_initfn(SysBusDevice *dev) -{ - SysBusNvRamState *sys = DS1225Y(dev); - NvRamState *s = &sys->nvram; - FILE *file; - - s->contents = g_malloc0(s->chip_size); - - memory_region_init_io(&s->iomem, OBJECT(s), &nvram_ops, s, - "nvram", s->chip_size); - sysbus_init_mmio(dev, &s->iomem); - - /* Read current file */ - file = fopen(s->filename, "rb"); - if (file) { - /* Read nvram contents */ - if (fread(s->contents, s->chip_size, 1, file) != 1) { - printf("nvram_sysbus_initfn: short read\n"); - } - fclose(file); - } - nvram_post_load(s, 0); - - return 0; -} - -static Property nvram_sysbus_properties[] = { - DEFINE_PROP_UINT32("size", SysBusNvRamState, nvram.chip_size, 0x2000), - DEFINE_PROP_STRING("filename", SysBusNvRamState, nvram.filename), - DEFINE_PROP_END_OF_LIST(), -}; - -static void nvram_sysbus_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); - - k->init = nvram_sysbus_initfn; - dc->vmsd = &vmstate_nvram; - dc->props = nvram_sysbus_properties; -} - -static const TypeInfo nvram_sysbus_info = { - .name = TYPE_DS1225Y, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(SysBusNvRamState), - .class_init = nvram_sysbus_class_init, -}; - -static void nvram_register_types(void) -{ - type_register_static(&nvram_sysbus_info); -} - -type_init(nvram_register_types) |