summaryrefslogtreecommitdiff
path: root/hw/isa/vt82c686.c
blob: 5fb808630fff91f3880e06b8ad688c88a24d4143 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
/*
 * VT82C686B south bridge support
 *
 * Copyright (c) 2008 yajin (yajin@vm-kernel.org)
 * Copyright (c) 2009 chenming (chenming@rdc.faw.com.cn)
 * Copyright (c) 2010 Huacai Chen (zltjiangshi@gmail.com)
 * This code is licensed under the GNU GPL v2.
 *
 * Contributions after 2012-01-13 are licensed under the terms of the
 * GNU GPL, version 2 or (at your option) any later version.
 */

#include "hw/hw.h"
#include "hw/i386/pc.h"
#include "hw/isa/vt82c686.h"
#include "hw/i2c/i2c.h"
#include "hw/i2c/smbus.h"
#include "hw/pci/pci.h"
#include "hw/isa/isa.h"
#include "hw/sysbus.h"
#include "hw/mips/mips.h"
#include "hw/isa/apm.h"
#include "hw/acpi/acpi.h"
#include "hw/i2c/pm_smbus.h"
#include "sysemu/sysemu.h"
#include "qemu/timer.h"
#include "exec/address-spaces.h"

//#define DEBUG_VT82C686B

#ifdef DEBUG_VT82C686B
#define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __FUNCTION__, ##__VA_ARGS__)
#else
#define DPRINTF(fmt, ...)
#endif

typedef struct SuperIOConfig
{
    uint8_t config[0xff];
    uint8_t index;
    uint8_t data;
} SuperIOConfig;

typedef struct VT82C686BState {
    PCIDevice dev;
    MemoryRegion superio;
    SuperIOConfig superio_conf;
} VT82C686BState;

static void superio_ioport_writeb(void *opaque, hwaddr addr, uint64_t data,
                                  unsigned size)
{
    int can_write;
    SuperIOConfig *superio_conf = opaque;

    DPRINTF("superio_ioport_writeb  address 0x%x  val 0x%x\n", addr, data);
    if (addr == 0x3f0) {
        superio_conf->index = data & 0xff;
    } else {
        /* 0x3f1 */
        switch (superio_conf->index) {
        case 0x00 ... 0xdf:
        case 0xe4:
        case 0xe5:
        case 0xe9 ... 0xed:
        case 0xf3:
        case 0xf5:
        case 0xf7:
        case 0xf9 ... 0xfb:
        case 0xfd ... 0xff:
            can_write = 0;
            break;
        default:
            can_write = 1;

            if (can_write) {
                switch (superio_conf->index) {
                case 0xe7:
                    if ((data & 0xff) != 0xfe) {
                        DPRINTF("chage uart 1 base. unsupported yet\n");
                    }
                    break;
                case 0xe8:
                    if ((data & 0xff) != 0xbe) {
                        DPRINTF("chage uart 2 base. unsupported yet\n");
                    }
                    break;

                default:
                    superio_conf->config[superio_conf->index] = data & 0xff;
                }
            }
        }
        superio_conf->config[superio_conf->index] = data & 0xff;
    }
}

static uint64_t superio_ioport_readb(void *opaque, hwaddr addr, unsigned size)
{
    SuperIOConfig *superio_conf = opaque;

    DPRINTF("superio_ioport_readb  address 0x%x\n", addr);
    return (superio_conf->config[superio_conf->index]);
}

static const MemoryRegionOps superio_ops = {
    .read = superio_ioport_readb,
    .write = superio_ioport_writeb,
    .endianness = DEVICE_NATIVE_ENDIAN,
    .impl = {
        .min_access_size = 1,
        .max_access_size = 1,
    },
};

static void vt82c686b_reset(void * opaque)
{
    PCIDevice *d = opaque;
    uint8_t *pci_conf = d->config;
    VT82C686BState *vt82c = DO_UPCAST(VT82C686BState, dev, d);

    pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
    pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
                 PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL);
    pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM);

    pci_conf[0x48] = 0x01; /* Miscellaneous Control 3 */
    pci_conf[0x4a] = 0x04; /* IDE interrupt Routing */
    pci_conf[0x4f] = 0x03; /* DMA/Master Mem Access Control 3 */
    pci_conf[0x50] = 0x2d; /* PnP DMA Request Control */
    pci_conf[0x59] = 0x04;
    pci_conf[0x5a] = 0x04; /* KBC/RTC Control*/
    pci_conf[0x5f] = 0x04;
    pci_conf[0x77] = 0x10; /* GPIO Control 1/2/3/4 */

    vt82c->superio_conf.config[0xe0] = 0x3c;
    vt82c->superio_conf.config[0xe2] = 0x03;
    vt82c->superio_conf.config[0xe3] = 0xfc;
    vt82c->superio_conf.config[0xe6] = 0xde;
    vt82c->superio_conf.config[0xe7] = 0xfe;
    vt82c->superio_conf.config[0xe8] = 0xbe;
}

/* write config pci function0 registers. PCI-ISA bridge */
static void vt82c686b_write_config(PCIDevice * d, uint32_t address,
                                   uint32_t val, int len)
{
    VT82C686BState *vt686 = DO_UPCAST(VT82C686BState, dev, d);

    DPRINTF("vt82c686b_write_config  address 0x%x  val 0x%x len 0x%x\n",
           address, val, len);

    pci_default_write_config(d, address, val, len);
    if (address == 0x85) {  /* enable or disable super IO configure */
        memory_region_set_enabled(&vt686->superio, val & 0x2);
    }
}

#define ACPI_DBG_IO_ADDR  0xb044

typedef struct VT686PMState {
    PCIDevice dev;
    MemoryRegion io;
    ACPIREGS ar;
    APMState apm;
    PMSMBus smb;
    uint32_t smb_io_base;
} VT686PMState;

typedef struct VT686AC97State {
    PCIDevice dev;
} VT686AC97State;

typedef struct VT686MC97State {
    PCIDevice dev;
} VT686MC97State;

static void pm_update_sci(VT686PMState *s)
{
    int sci_level, pmsts;

    pmsts = acpi_pm1_evt_get_sts(&s->ar);
    sci_level = (((pmsts & s->ar.pm1.evt.en) &
                  (ACPI_BITMASK_RT_CLOCK_ENABLE |
                   ACPI_BITMASK_POWER_BUTTON_ENABLE |
                   ACPI_BITMASK_GLOBAL_LOCK_ENABLE |
                   ACPI_BITMASK_TIMER_ENABLE)) != 0);
    pci_set_irq(&s->dev, sci_level);
    /* schedule a timer interruption if needed */
    acpi_pm_tmr_update(&s->ar, (s->ar.pm1.evt.en & ACPI_BITMASK_TIMER_ENABLE) &&
                       !(pmsts & ACPI_BITMASK_TIMER_STATUS));
}

static void pm_tmr_timer(ACPIREGS *ar)
{
    VT686PMState *s = container_of(ar, VT686PMState, ar);
    pm_update_sci(s);
}

static void pm_io_space_update(VT686PMState *s)
{
    uint32_t pm_io_base;

    pm_io_base = pci_get_long(s->dev.config + 0x40);
    pm_io_base &= 0xffc0;

    memory_region_transaction_begin();
    memory_region_set_enabled(&s->io, s->dev.config[0x80] & 1);
    memory_region_set_address(&s->io, pm_io_base);
    memory_region_transaction_commit();
}

static void pm_write_config(PCIDevice *d,
                            uint32_t address, uint32_t val, int len)
{
    DPRINTF("pm_write_config  address 0x%x  val 0x%x len 0x%x\n",
           address, val, len);
    pci_default_write_config(d, address, val, len);
}

static int vmstate_acpi_post_load(void *opaque, int version_id)
{
    VT686PMState *s = opaque;

    pm_io_space_update(s);
    return 0;
}

static const VMStateDescription vmstate_acpi = {
    .name = "vt82c686b_pm",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .post_load = vmstate_acpi_post_load,
    .fields      = (VMStateField []) {
        VMSTATE_PCI_DEVICE(dev, VT686PMState),
        VMSTATE_UINT16(ar.pm1.evt.sts, VT686PMState),
        VMSTATE_UINT16(ar.pm1.evt.en, VT686PMState),
        VMSTATE_UINT16(ar.pm1.cnt.cnt, VT686PMState),
        VMSTATE_STRUCT(apm, VT686PMState, 0, vmstate_apm, APMState),
        VMSTATE_TIMER(ar.tmr.timer, VT686PMState),
        VMSTATE_INT64(ar.tmr.overflow_time, VT686PMState),
        VMSTATE_END_OF_LIST()
    }
};

/*
 * TODO: vt82c686b_ac97_init() and vt82c686b_mc97_init()
 * just register a PCI device now, functionalities will be implemented later.
 */

static int vt82c686b_ac97_initfn(PCIDevice *dev)
{
    VT686AC97State *s = DO_UPCAST(VT686AC97State, dev, dev);
    uint8_t *pci_conf = s->dev.config;

    pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE |
                 PCI_COMMAND_PARITY);
    pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_CAP_LIST |
                 PCI_STATUS_DEVSEL_MEDIUM);
    pci_set_long(pci_conf + PCI_INTERRUPT_PIN, 0x03);

    return 0;
}

void vt82c686b_ac97_init(PCIBus *bus, int devfn)
{
    PCIDevice *dev;

    dev = pci_create(bus, devfn, "VT82C686B_AC97");
    qdev_init_nofail(&dev->qdev);
}

static void via_ac97_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);
    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);

    k->init = vt82c686b_ac97_initfn;
    k->vendor_id = PCI_VENDOR_ID_VIA;
    k->device_id = PCI_DEVICE_ID_VIA_AC97;
    k->revision = 0x50;
    k->class_id = PCI_CLASS_MULTIMEDIA_AUDIO;
    set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
    dc->desc = "AC97";
}

static const TypeInfo via_ac97_info = {
    .name          = "VT82C686B_AC97",
    .parent        = TYPE_PCI_DEVICE,
    .instance_size = sizeof(VT686AC97State),
    .class_init    = via_ac97_class_init,
};

static int vt82c686b_mc97_initfn(PCIDevice *dev)
{
    VT686MC97State *s = DO_UPCAST(VT686MC97State, dev, dev);
    uint8_t *pci_conf = s->dev.config;

    pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE |
                 PCI_COMMAND_VGA_PALETTE);
    pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM);
    pci_set_long(pci_conf + PCI_INTERRUPT_PIN, 0x03);

    return 0;
}

void vt82c686b_mc97_init(PCIBus *bus, int devfn)
{
    PCIDevice *dev;

    dev = pci_create(bus, devfn, "VT82C686B_MC97");
    qdev_init_nofail(&dev->qdev);
}

static void via_mc97_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);
    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);

    k->init = vt82c686b_mc97_initfn;
    k->vendor_id = PCI_VENDOR_ID_VIA;
    k->device_id = PCI_DEVICE_ID_VIA_MC97;
    k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
    k->revision = 0x30;
    set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
    dc->desc = "MC97";
}

static const TypeInfo via_mc97_info = {
    .name          = "VT82C686B_MC97",
    .parent        = TYPE_PCI_DEVICE,
    .instance_size = sizeof(VT686MC97State),
    .class_init    = via_mc97_class_init,
};

/* vt82c686 pm init */
static int vt82c686b_pm_initfn(PCIDevice *dev)
{
    VT686PMState *s = DO_UPCAST(VT686PMState, dev, dev);
    uint8_t *pci_conf;

    pci_conf = s->dev.config;
    pci_set_word(pci_conf + PCI_COMMAND, 0);
    pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_FAST_BACK |
                 PCI_STATUS_DEVSEL_MEDIUM);

    /* 0x48-0x4B is Power Management I/O Base */
    pci_set_long(pci_conf + 0x48, 0x00000001);

    /* SMB ports:0xeee0~0xeeef */
    s->smb_io_base =((s->smb_io_base & 0xfff0) + 0x0);
    pci_conf[0x90] = s->smb_io_base | 1;
    pci_conf[0x91] = s->smb_io_base >> 8;
    pci_conf[0xd2] = 0x90;
    pm_smbus_init(&s->dev.qdev, &s->smb);
    memory_region_add_subregion(get_system_io(), s->smb_io_base, &s->smb.io);

    apm_init(dev, &s->apm, NULL, s);

    memory_region_init(&s->io, OBJECT(dev), "vt82c686-pm", 64);
    memory_region_set_enabled(&s->io, false);
    memory_region_add_subregion(get_system_io(), 0, &s->io);

    acpi_pm_tmr_init(&s->ar, pm_tmr_timer, &s->io);
    acpi_pm1_evt_init(&s->ar, pm_tmr_timer, &s->io);
    acpi_pm1_cnt_init(&s->ar, &s->io, 2);

    return 0;
}

i2c_bus *vt82c686b_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
                       qemu_irq sci_irq)
{
    PCIDevice *dev;
    VT686PMState *s;

    dev = pci_create(bus, devfn, "VT82C686B_PM");
    qdev_prop_set_uint32(&dev->qdev, "smb_io_base", smb_io_base);

    s = DO_UPCAST(VT686PMState, dev, dev);

    qdev_init_nofail(&dev->qdev);

    return s->smb.smbus;
}

static Property via_pm_properties[] = {
    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;
    set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
    dc->props = via_pm_properties;
}

static const 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)
{
    VT82C686BState *vt82c = DO_UPCAST(VT82C686BState, dev, d);
    uint8_t *pci_conf;
    ISABus *isa_bus;
    uint8_t *wmask;
    int i;

    isa_bus = 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;
       }
    }

    memory_region_init_io(&vt82c->superio, OBJECT(d), &superio_ops,
                          &vt82c->superio_conf, "superio", 2);
    memory_region_set_enabled(&vt82c->superio, false);
    /* The floppy also uses 0x3f0 and 0x3f1.
     * But we do not emulate a floppy, so just set it here. */
    memory_region_add_subregion(isa_bus->address_space_io, 0x3f0,
                                &vt82c->superio);

    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 ISA_BUS(qdev_get_child_bus(DEVICE(d), "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 const 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)