mirror of
https://github.com/qemu/qemu.git
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459ae5ea5a
This patch adds two things. First it allows QEMU to distinguish between regular powerdown and S4 powerdown. Later separate QMP notification will be added for S4 powerdown. Second it allows S3/S4 states to be disabled from QEMU command line. Some guests known to be broken with regards to power management, but allow to use it anyway. Using new properties management will be able to disable S3/S4 for such guests. Supported system state are passed to a firmware using new fw_cfg file. The file contains 6 byte array. Each byte represents one system state. If byte at offset X has its MSB set it means that system state X is supported and to enter it guest should use the value from lowest 3 bits. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
560 lines
15 KiB
C
560 lines
15 KiB
C
/*
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* VT82C686B south bridge support
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*
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* Copyright (c) 2008 yajin (yajin@vm-kernel.org)
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* Copyright (c) 2009 chenming (chenming@rdc.faw.com.cn)
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* Copyright (c) 2010 Huacai Chen (zltjiangshi@gmail.com)
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* This code is licensed under the GNU GPL v2.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include "hw.h"
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#include "pc.h"
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#include "vt82c686.h"
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#include "i2c.h"
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#include "smbus.h"
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#include "pci.h"
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#include "isa.h"
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#include "sysbus.h"
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#include "mips.h"
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#include "apm.h"
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#include "acpi.h"
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#include "pm_smbus.h"
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#include "sysemu.h"
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#include "qemu-timer.h"
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typedef uint32_t pci_addr_t;
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#include "pci_host.h"
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//#define DEBUG_VT82C686B
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#ifdef DEBUG_VT82C686B
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#define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __FUNCTION__, ##__VA_ARGS__)
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#else
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#define DPRINTF(fmt, ...)
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#endif
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typedef struct SuperIOConfig
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{
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uint8_t config[0xff];
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uint8_t index;
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uint8_t data;
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} SuperIOConfig;
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typedef struct VT82C686BState {
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PCIDevice dev;
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SuperIOConfig superio_conf;
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} VT82C686BState;
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static void superio_ioport_writeb(void *opaque, uint32_t addr, uint32_t data)
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{
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int can_write;
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SuperIOConfig *superio_conf = opaque;
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DPRINTF("superio_ioport_writeb address 0x%x val 0x%x\n", addr, data);
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if (addr == 0x3f0) {
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superio_conf->index = data & 0xff;
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} else {
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/* 0x3f1 */
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switch (superio_conf->index) {
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case 0x00 ... 0xdf:
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case 0xe4:
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case 0xe5:
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case 0xe9 ... 0xed:
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case 0xf3:
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case 0xf5:
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case 0xf7:
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case 0xf9 ... 0xfb:
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case 0xfd ... 0xff:
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can_write = 0;
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break;
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default:
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can_write = 1;
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if (can_write) {
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switch (superio_conf->index) {
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case 0xe7:
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if ((data & 0xff) != 0xfe) {
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DPRINTF("chage uart 1 base. unsupported yet\n");
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}
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break;
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case 0xe8:
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if ((data & 0xff) != 0xbe) {
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DPRINTF("chage uart 2 base. unsupported yet\n");
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}
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break;
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default:
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superio_conf->config[superio_conf->index] = data & 0xff;
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}
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}
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}
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superio_conf->config[superio_conf->index] = data & 0xff;
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}
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}
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static uint32_t superio_ioport_readb(void *opaque, uint32_t addr)
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{
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SuperIOConfig *superio_conf = opaque;
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DPRINTF("superio_ioport_readb address 0x%x\n", addr);
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return (superio_conf->config[superio_conf->index]);
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}
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static void vt82c686b_reset(void * opaque)
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{
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PCIDevice *d = opaque;
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uint8_t *pci_conf = d->config;
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VT82C686BState *vt82c = DO_UPCAST(VT82C686BState, dev, d);
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pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
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pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
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PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL);
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pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM);
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pci_conf[0x48] = 0x01; /* Miscellaneous Control 3 */
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pci_conf[0x4a] = 0x04; /* IDE interrupt Routing */
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pci_conf[0x4f] = 0x03; /* DMA/Master Mem Access Control 3 */
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pci_conf[0x50] = 0x2d; /* PnP DMA Request Control */
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pci_conf[0x59] = 0x04;
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pci_conf[0x5a] = 0x04; /* KBC/RTC Control*/
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pci_conf[0x5f] = 0x04;
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pci_conf[0x77] = 0x10; /* GPIO Control 1/2/3/4 */
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vt82c->superio_conf.config[0xe0] = 0x3c;
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vt82c->superio_conf.config[0xe2] = 0x03;
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vt82c->superio_conf.config[0xe3] = 0xfc;
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vt82c->superio_conf.config[0xe6] = 0xde;
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vt82c->superio_conf.config[0xe7] = 0xfe;
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vt82c->superio_conf.config[0xe8] = 0xbe;
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}
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/* write config pci function0 registers. PCI-ISA bridge */
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static void vt82c686b_write_config(PCIDevice * d, uint32_t address,
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uint32_t val, int len)
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{
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VT82C686BState *vt686 = DO_UPCAST(VT82C686BState, dev, d);
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DPRINTF("vt82c686b_write_config address 0x%x val 0x%x len 0x%x\n",
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address, val, len);
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pci_default_write_config(d, address, val, len);
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if (address == 0x85) { /* enable or disable super IO configure */
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if (val & 0x2) {
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/* floppy also uses 0x3f0 and 0x3f1.
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* But we do not emulate flopy,so just set it here. */
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isa_unassign_ioport(0x3f0, 2);
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register_ioport_read(0x3f0, 2, 1, superio_ioport_readb,
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&vt686->superio_conf);
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register_ioport_write(0x3f0, 2, 1, superio_ioport_writeb,
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&vt686->superio_conf);
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} else {
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isa_unassign_ioport(0x3f0, 2);
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}
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}
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}
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#define ACPI_DBG_IO_ADDR 0xb044
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typedef struct VT686PMState {
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PCIDevice dev;
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ACPIREGS ar;
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APMState apm;
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PMSMBus smb;
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uint32_t smb_io_base;
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} VT686PMState;
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typedef struct VT686AC97State {
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PCIDevice dev;
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} VT686AC97State;
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typedef struct VT686MC97State {
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PCIDevice dev;
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} VT686MC97State;
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static void pm_update_sci(VT686PMState *s)
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{
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int sci_level, pmsts;
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pmsts = acpi_pm1_evt_get_sts(&s->ar);
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sci_level = (((pmsts & s->ar.pm1.evt.en) &
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(ACPI_BITMASK_RT_CLOCK_ENABLE |
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ACPI_BITMASK_POWER_BUTTON_ENABLE |
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ACPI_BITMASK_GLOBAL_LOCK_ENABLE |
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ACPI_BITMASK_TIMER_ENABLE)) != 0);
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qemu_set_irq(s->dev.irq[0], sci_level);
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/* schedule a timer interruption if needed */
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acpi_pm_tmr_update(&s->ar, (s->ar.pm1.evt.en & ACPI_BITMASK_TIMER_ENABLE) &&
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!(pmsts & ACPI_BITMASK_TIMER_STATUS));
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}
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static void pm_tmr_timer(ACPIREGS *ar)
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{
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VT686PMState *s = container_of(ar, VT686PMState, ar);
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pm_update_sci(s);
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}
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static void pm_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
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{
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VT686PMState *s = opaque;
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addr &= 0x0f;
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switch (addr) {
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case 0x00:
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acpi_pm1_evt_write_sts(&s->ar, val);
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pm_update_sci(s);
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break;
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case 0x02:
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acpi_pm1_evt_write_en(&s->ar, val);
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pm_update_sci(s);
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break;
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case 0x04:
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acpi_pm1_cnt_write(&s->ar, val, 0);
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break;
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default:
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break;
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}
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DPRINTF("PM writew port=0x%04x val=0x%02x\n", addr, val);
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}
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static uint32_t pm_ioport_readw(void *opaque, uint32_t addr)
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{
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VT686PMState *s = opaque;
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uint32_t val;
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addr &= 0x0f;
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switch (addr) {
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case 0x00:
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val = acpi_pm1_evt_get_sts(&s->ar);
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break;
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case 0x02:
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val = s->ar.pm1.evt.en;
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break;
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case 0x04:
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val = s->ar.pm1.cnt.cnt;
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break;
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default:
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val = 0;
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break;
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}
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DPRINTF("PM readw port=0x%04x val=0x%02x\n", addr, val);
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return val;
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}
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static void pm_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
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{
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addr &= 0x0f;
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DPRINTF("PM writel port=0x%04x val=0x%08x\n", addr, val);
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}
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static uint32_t pm_ioport_readl(void *opaque, uint32_t addr)
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{
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VT686PMState *s = opaque;
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uint32_t val;
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addr &= 0x0f;
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switch (addr) {
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case 0x08:
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val = acpi_pm_tmr_get(&s->ar);
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break;
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default:
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val = 0;
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break;
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}
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DPRINTF("PM readl port=0x%04x val=0x%08x\n", addr, val);
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return val;
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}
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static void pm_io_space_update(VT686PMState *s)
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{
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uint32_t pm_io_base;
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if (s->dev.config[0x80] & 1) {
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pm_io_base = pci_get_long(s->dev.config + 0x40);
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pm_io_base &= 0xffc0;
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/* XXX: need to improve memory and ioport allocation */
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DPRINTF("PM: mapping to 0x%x\n", pm_io_base);
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register_ioport_write(pm_io_base, 64, 2, pm_ioport_writew, s);
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register_ioport_read(pm_io_base, 64, 2, pm_ioport_readw, s);
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register_ioport_write(pm_io_base, 64, 4, pm_ioport_writel, s);
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register_ioport_read(pm_io_base, 64, 4, pm_ioport_readl, s);
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}
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}
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static void pm_write_config(PCIDevice *d,
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uint32_t address, uint32_t val, int len)
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{
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DPRINTF("pm_write_config address 0x%x val 0x%x len 0x%x\n",
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address, val, len);
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pci_default_write_config(d, address, val, len);
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}
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static int vmstate_acpi_post_load(void *opaque, int version_id)
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{
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VT686PMState *s = opaque;
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pm_io_space_update(s);
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return 0;
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}
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static const VMStateDescription vmstate_acpi = {
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.name = "vt82c686b_pm",
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.version_id = 1,
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.minimum_version_id = 1,
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.minimum_version_id_old = 1,
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.post_load = vmstate_acpi_post_load,
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.fields = (VMStateField []) {
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VMSTATE_PCI_DEVICE(dev, VT686PMState),
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VMSTATE_UINT16(ar.pm1.evt.sts, VT686PMState),
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VMSTATE_UINT16(ar.pm1.evt.en, VT686PMState),
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VMSTATE_UINT16(ar.pm1.cnt.cnt, VT686PMState),
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VMSTATE_STRUCT(apm, VT686PMState, 0, vmstate_apm, APMState),
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VMSTATE_TIMER(ar.tmr.timer, VT686PMState),
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VMSTATE_INT64(ar.tmr.overflow_time, VT686PMState),
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VMSTATE_END_OF_LIST()
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}
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};
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/*
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* TODO: vt82c686b_ac97_init() and vt82c686b_mc97_init()
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* just register a PCI device now, functionalities will be implemented later.
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*/
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static int vt82c686b_ac97_initfn(PCIDevice *dev)
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{
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VT686AC97State *s = DO_UPCAST(VT686AC97State, dev, dev);
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uint8_t *pci_conf = s->dev.config;
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pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE |
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PCI_COMMAND_PARITY);
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pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_CAP_LIST |
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PCI_STATUS_DEVSEL_MEDIUM);
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pci_set_long(pci_conf + PCI_INTERRUPT_PIN, 0x03);
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return 0;
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}
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void vt82c686b_ac97_init(PCIBus *bus, int devfn)
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{
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PCIDevice *dev;
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dev = pci_create(bus, devfn, "VT82C686B_AC97");
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qdev_init_nofail(&dev->qdev);
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}
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static void via_ac97_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
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k->init = vt82c686b_ac97_initfn;
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k->vendor_id = PCI_VENDOR_ID_VIA;
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k->device_id = PCI_DEVICE_ID_VIA_AC97;
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k->revision = 0x50;
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k->class_id = PCI_CLASS_MULTIMEDIA_AUDIO;
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dc->desc = "AC97";
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}
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static TypeInfo via_ac97_info = {
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.name = "VT82C686B_AC97",
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.parent = TYPE_PCI_DEVICE,
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.instance_size = sizeof(VT686AC97State),
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.class_init = via_ac97_class_init,
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};
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static int vt82c686b_mc97_initfn(PCIDevice *dev)
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{
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VT686MC97State *s = DO_UPCAST(VT686MC97State, dev, dev);
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uint8_t *pci_conf = s->dev.config;
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pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE |
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PCI_COMMAND_VGA_PALETTE);
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pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM);
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pci_set_long(pci_conf + PCI_INTERRUPT_PIN, 0x03);
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return 0;
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}
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void vt82c686b_mc97_init(PCIBus *bus, int devfn)
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{
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PCIDevice *dev;
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dev = pci_create(bus, devfn, "VT82C686B_MC97");
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qdev_init_nofail(&dev->qdev);
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}
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static void via_mc97_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
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k->init = vt82c686b_mc97_initfn;
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k->vendor_id = PCI_VENDOR_ID_VIA;
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k->device_id = PCI_DEVICE_ID_VIA_MC97;
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k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
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k->revision = 0x30;
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dc->desc = "MC97";
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}
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static TypeInfo via_mc97_info = {
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.name = "VT82C686B_MC97",
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.parent = TYPE_PCI_DEVICE,
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.instance_size = sizeof(VT686MC97State),
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.class_init = via_mc97_class_init,
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};
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/* vt82c686 pm init */
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static int vt82c686b_pm_initfn(PCIDevice *dev)
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{
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VT686PMState *s = DO_UPCAST(VT686PMState, dev, dev);
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uint8_t *pci_conf;
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pci_conf = s->dev.config;
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pci_set_word(pci_conf + PCI_COMMAND, 0);
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pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_FAST_BACK |
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PCI_STATUS_DEVSEL_MEDIUM);
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/* 0x48-0x4B is Power Management I/O Base */
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pci_set_long(pci_conf + 0x48, 0x00000001);
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/* SMB ports:0xeee0~0xeeef */
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s->smb_io_base =((s->smb_io_base & 0xfff0) + 0x0);
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pci_conf[0x90] = s->smb_io_base | 1;
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pci_conf[0x91] = s->smb_io_base >> 8;
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pci_conf[0xd2] = 0x90;
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register_ioport_write(s->smb_io_base, 0xf, 1, smb_ioport_writeb, &s->smb);
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register_ioport_read(s->smb_io_base, 0xf, 1, smb_ioport_readb, &s->smb);
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apm_init(&s->apm, NULL, s);
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acpi_pm_tmr_init(&s->ar, pm_tmr_timer);
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acpi_pm1_cnt_init(&s->ar);
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pm_smbus_init(&s->dev.qdev, &s->smb);
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return 0;
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}
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i2c_bus *vt82c686b_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
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qemu_irq sci_irq)
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{
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PCIDevice *dev;
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VT686PMState *s;
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dev = pci_create(bus, devfn, "VT82C686B_PM");
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qdev_prop_set_uint32(&dev->qdev, "smb_io_base", smb_io_base);
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s = DO_UPCAST(VT686PMState, dev, dev);
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qdev_init_nofail(&dev->qdev);
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return s->smb.smbus;
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}
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static Property via_pm_properties[] = {
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DEFINE_PROP_UINT32("smb_io_base", VT686PMState, smb_io_base, 0),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void via_pm_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
|
|
|
|
k->init = vt82c686b_pm_initfn;
|
|
k->config_write = pm_write_config;
|
|
k->vendor_id = PCI_VENDOR_ID_VIA;
|
|
k->device_id = PCI_DEVICE_ID_VIA_ACPI;
|
|
k->class_id = PCI_CLASS_BRIDGE_OTHER;
|
|
k->revision = 0x40;
|
|
dc->desc = "PM";
|
|
dc->vmsd = &vmstate_acpi;
|
|
dc->props = via_pm_properties;
|
|
}
|
|
|
|
static TypeInfo via_pm_info = {
|
|
.name = "VT82C686B_PM",
|
|
.parent = TYPE_PCI_DEVICE,
|
|
.instance_size = sizeof(VT686PMState),
|
|
.class_init = via_pm_class_init,
|
|
};
|
|
|
|
static const VMStateDescription vmstate_via = {
|
|
.name = "vt82c686b",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.minimum_version_id_old = 1,
|
|
.fields = (VMStateField []) {
|
|
VMSTATE_PCI_DEVICE(dev, VT82C686BState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
/* init the PCI-to-ISA bridge */
|
|
static int vt82c686b_initfn(PCIDevice *d)
|
|
{
|
|
uint8_t *pci_conf;
|
|
uint8_t *wmask;
|
|
int i;
|
|
|
|
isa_bus_new(&d->qdev, pci_address_space_io(d));
|
|
|
|
pci_conf = d->config;
|
|
pci_config_set_prog_interface(pci_conf, 0x0);
|
|
|
|
wmask = d->wmask;
|
|
for (i = 0x00; i < 0xff; i++) {
|
|
if (i<=0x03 || (i>=0x08 && i<=0x3f)) {
|
|
wmask[i] = 0x00;
|
|
}
|
|
}
|
|
|
|
qemu_register_reset(vt82c686b_reset, d);
|
|
|
|
return 0;
|
|
}
|
|
|
|
ISABus *vt82c686b_init(PCIBus *bus, int devfn)
|
|
{
|
|
PCIDevice *d;
|
|
|
|
d = pci_create_simple_multifunction(bus, devfn, true, "VT82C686B");
|
|
|
|
return DO_UPCAST(ISABus, qbus, qdev_get_child_bus(&d->qdev, "isa.0"));
|
|
}
|
|
|
|
static void via_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
|
|
|
|
k->init = vt82c686b_initfn;
|
|
k->config_write = vt82c686b_write_config;
|
|
k->vendor_id = PCI_VENDOR_ID_VIA;
|
|
k->device_id = PCI_DEVICE_ID_VIA_ISA_BRIDGE;
|
|
k->class_id = PCI_CLASS_BRIDGE_ISA;
|
|
k->revision = 0x40;
|
|
dc->desc = "ISA bridge";
|
|
dc->no_user = 1;
|
|
dc->vmsd = &vmstate_via;
|
|
}
|
|
|
|
static TypeInfo via_info = {
|
|
.name = "VT82C686B",
|
|
.parent = TYPE_PCI_DEVICE,
|
|
.instance_size = sizeof(VT82C686BState),
|
|
.class_init = via_class_init,
|
|
};
|
|
|
|
static void vt82c686b_register_types(void)
|
|
{
|
|
type_register_static(&via_ac97_info);
|
|
type_register_static(&via_mc97_info);
|
|
type_register_static(&via_pm_info);
|
|
type_register_static(&via_info);
|
|
}
|
|
|
|
type_init(vt82c686b_register_types)
|