DS1225Y nvram device, by Herve Poussineau.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2460 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
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c5be9f0898
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@ -383,7 +383,7 @@ CPPFLAGS += -DHAS_AUDIO
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endif
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endif
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ifeq ($(TARGET_ARCH), mips)
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ifeq ($(TARGET_ARCH), mips)
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VL_OBJS+= mips_r4k.o mips_malta.o mips_timer.o mips_int.o dma.o vga.o serial.o i8254.o i8259.o
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VL_OBJS+= mips_r4k.o mips_malta.o mips_timer.o mips_int.o dma.o vga.o serial.o i8254.o i8259.o
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VL_OBJS+= ide.o gt64xxx.o pckbd.o ps2.o fdc.o mc146818rtc.o usb-uhci.o acpi.o
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VL_OBJS+= ide.o gt64xxx.o pckbd.o ps2.o fdc.o mc146818rtc.o usb-uhci.o acpi.o ds1225y.o
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VL_OBJS+= piix_pci.o parallel.o mixeng.o cirrus_vga.o $(SOUND_HW) $(AUDIODRV)
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VL_OBJS+= piix_pci.o parallel.o mixeng.o cirrus_vga.o $(SOUND_HW) $(AUDIODRV)
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DEFINES += -DHAS_AUDIO
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DEFINES += -DHAS_AUDIO
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endif
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endif
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121
hw/ds1225y.c
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121
hw/ds1225y.c
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@ -0,0 +1,121 @@
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/*
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* QEMU NVRAM emulation for DS1225Y chip
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*
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* Copyright (c) 2007 Hervé Poussineau
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "vl.h"
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typedef enum
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{
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none = 0,
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readmode,
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writemode,
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} nvram_open_mode;
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struct ds1225y_t
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{
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target_ulong mem_base;
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uint32_t capacity;
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const char *filename;
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QEMUFile *file;
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nvram_open_mode open_mode;
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};
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static int ds1225y_set_to_mode(ds1225y_t *NVRAM, nvram_open_mode mode, const char *filemode)
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{
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if (NVRAM->open_mode != mode)
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{
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if (NVRAM->file)
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qemu_fclose(NVRAM->file);
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NVRAM->file = qemu_fopen(NVRAM->filename, filemode);
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NVRAM->open_mode = mode;
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}
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return (NVRAM->file != NULL);
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}
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static uint32_t nvram_readb (void *opaque, target_phys_addr_t addr)
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{
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ds1225y_t *NVRAM = opaque;
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int64_t pos;
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pos = addr - NVRAM->mem_base;
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if (addr >= NVRAM->capacity)
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addr -= NVRAM->capacity;
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if (!ds1225y_set_to_mode(NVRAM, readmode, "rb"))
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return 0;
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qemu_fseek(NVRAM->file, pos, SEEK_SET);
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return (uint32_t)qemu_get_byte(NVRAM->file);
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}
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static void nvram_writeb (void *opaque, target_phys_addr_t addr, uint32_t value)
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{
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ds1225y_t *NVRAM = opaque;
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int64_t pos;
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pos = addr - NVRAM->mem_base;
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if (ds1225y_set_to_mode(NVRAM, writemode, "wb"))
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{
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qemu_fseek(NVRAM->file, pos, SEEK_SET);
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qemu_put_byte(NVRAM->file, (int)value);
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}
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}
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static CPUReadMemoryFunc *nvram_read[] = {
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&nvram_readb,
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NULL,
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NULL,
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};
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static CPUWriteMemoryFunc *nvram_write[] = {
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&nvram_writeb,
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NULL,
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NULL,
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};
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static CPUWriteMemoryFunc *nvram_none[] = {
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NULL,
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NULL,
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NULL,
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};
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/* Initialisation routine */
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ds1225y_t *ds1225y_init(target_ulong mem_base, const char *filename)
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{
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ds1225y_t *s;
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int mem_index1, mem_index2;
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s = qemu_mallocz(sizeof(ds1225y_t));
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if (!s)
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return NULL;
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s->mem_base = mem_base;
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s->capacity = 0x2000; /* Fixed for ds1225y chip: 8K */
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s->filename = filename;
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/* Read/write memory */
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mem_index1 = cpu_register_io_memory(0, nvram_read, nvram_write, s);
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cpu_register_physical_memory(mem_base, s->capacity, mem_index1);
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/* Read-only memory */
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mem_index2 = cpu_register_io_memory(0, nvram_read, nvram_none, s);
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cpu_register_physical_memory(mem_base + s->capacity, s->capacity, mem_index2);
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return s;
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}
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@ -215,6 +215,7 @@ void mips_r4k_init (int ram_size, int vga_ram_size, int boot_device,
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bs_table[2 * i], bs_table[2 * i + 1]);
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bs_table[2 * i], bs_table[2 * i + 1]);
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kbd_init();
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kbd_init();
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ds1225y_init(0x9000, "nvram");
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}
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}
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QEMUMachine mips_machine = {
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QEMUMachine mips_machine = {
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4
vl.h
4
vl.h
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@ -941,6 +941,10 @@ int pmac_ide_init (BlockDriverState **hd_table,
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int cdrom_read_toc(int nb_sectors, uint8_t *buf, int msf, int start_track);
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int cdrom_read_toc(int nb_sectors, uint8_t *buf, int msf, int start_track);
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int cdrom_read_toc_raw(int nb_sectors, uint8_t *buf, int msf, int session_num);
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int cdrom_read_toc_raw(int nb_sectors, uint8_t *buf, int msf, int session_num);
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/* ds1225y.c */
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typedef struct ds1225y_t ds1225y_t;
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ds1225y_t *ds1225y_init(target_ulong mem_base, const char *filename);
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/* es1370.c */
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/* es1370.c */
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int es1370_init (PCIBus *bus, AudioState *s);
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int es1370_init (PCIBus *bus, AudioState *s);
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