qemu/hw/arm/musicpal.c
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   1/*
   2 * Marvell MV88W8618 / Freecom MusicPal emulation.
   3 *
   4 * Copyright (c) 2008 Jan Kiszka
   5 *
   6 * This code is licensed under the GNU GPL v2.
   7 *
   8 * Contributions after 2012-01-13 are licensed under the terms of the
   9 * GNU GPL, version 2 or (at your option) any later version.
  10 */
  11
  12#include "qemu/osdep.h"
  13#include "qapi/error.h"
  14#include "qemu-common.h"
  15#include "cpu.h"
  16#include "hw/sysbus.h"
  17#include "hw/arm/arm.h"
  18#include "hw/devices.h"
  19#include "net/net.h"
  20#include "sysemu/sysemu.h"
  21#include "hw/boards.h"
  22#include "hw/char/serial.h"
  23#include "qemu/timer.h"
  24#include "hw/ptimer.h"
  25#include "hw/block/flash.h"
  26#include "ui/console.h"
  27#include "hw/i2c/i2c.h"
  28#include "sysemu/block-backend.h"
  29#include "exec/address-spaces.h"
  30#include "ui/pixel_ops.h"
  31
  32#define MP_MISC_BASE            0x80002000
  33#define MP_MISC_SIZE            0x00001000
  34
  35#define MP_ETH_BASE             0x80008000
  36#define MP_ETH_SIZE             0x00001000
  37
  38#define MP_WLAN_BASE            0x8000C000
  39#define MP_WLAN_SIZE            0x00000800
  40
  41#define MP_UART1_BASE           0x8000C840
  42#define MP_UART2_BASE           0x8000C940
  43
  44#define MP_GPIO_BASE            0x8000D000
  45#define MP_GPIO_SIZE            0x00001000
  46
  47#define MP_FLASHCFG_BASE        0x90006000
  48#define MP_FLASHCFG_SIZE        0x00001000
  49
  50#define MP_AUDIO_BASE           0x90007000
  51
  52#define MP_PIC_BASE             0x90008000
  53#define MP_PIC_SIZE             0x00001000
  54
  55#define MP_PIT_BASE             0x90009000
  56#define MP_PIT_SIZE             0x00001000
  57
  58#define MP_LCD_BASE             0x9000c000
  59#define MP_LCD_SIZE             0x00001000
  60
  61#define MP_SRAM_BASE            0xC0000000
  62#define MP_SRAM_SIZE            0x00020000
  63
  64#define MP_RAM_DEFAULT_SIZE     32*1024*1024
  65#define MP_FLASH_SIZE_MAX       32*1024*1024
  66
  67#define MP_TIMER1_IRQ           4
  68#define MP_TIMER2_IRQ           5
  69#define MP_TIMER3_IRQ           6
  70#define MP_TIMER4_IRQ           7
  71#define MP_EHCI_IRQ             8
  72#define MP_ETH_IRQ              9
  73#define MP_UART1_IRQ            11
  74#define MP_UART2_IRQ            11
  75#define MP_GPIO_IRQ             12
  76#define MP_RTC_IRQ              28
  77#define MP_AUDIO_IRQ            30
  78
  79/* Wolfson 8750 I2C address */
  80#define MP_WM_ADDR              0x1A
  81
  82/* Ethernet register offsets */
  83#define MP_ETH_SMIR             0x010
  84#define MP_ETH_PCXR             0x408
  85#define MP_ETH_SDCMR            0x448
  86#define MP_ETH_ICR              0x450
  87#define MP_ETH_IMR              0x458
  88#define MP_ETH_FRDP0            0x480
  89#define MP_ETH_FRDP1            0x484
  90#define MP_ETH_FRDP2            0x488
  91#define MP_ETH_FRDP3            0x48C
  92#define MP_ETH_CRDP0            0x4A0
  93#define MP_ETH_CRDP1            0x4A4
  94#define MP_ETH_CRDP2            0x4A8
  95#define MP_ETH_CRDP3            0x4AC
  96#define MP_ETH_CTDP0            0x4E0
  97#define MP_ETH_CTDP1            0x4E4
  98
  99/* MII PHY access */
 100#define MP_ETH_SMIR_DATA        0x0000FFFF
 101#define MP_ETH_SMIR_ADDR        0x03FF0000
 102#define MP_ETH_SMIR_OPCODE      (1 << 26) /* Read value */
 103#define MP_ETH_SMIR_RDVALID     (1 << 27)
 104
 105/* PHY registers */
 106#define MP_ETH_PHY1_BMSR        0x00210000
 107#define MP_ETH_PHY1_PHYSID1     0x00410000
 108#define MP_ETH_PHY1_PHYSID2     0x00610000
 109
 110#define MP_PHY_BMSR_LINK        0x0004
 111#define MP_PHY_BMSR_AUTONEG     0x0008
 112
 113#define MP_PHY_88E3015          0x01410E20
 114
 115/* TX descriptor status */
 116#define MP_ETH_TX_OWN           (1U << 31)
 117
 118/* RX descriptor status */
 119#define MP_ETH_RX_OWN           (1U << 31)
 120
 121/* Interrupt cause/mask bits */
 122#define MP_ETH_IRQ_RX_BIT       0
 123#define MP_ETH_IRQ_RX           (1 << MP_ETH_IRQ_RX_BIT)
 124#define MP_ETH_IRQ_TXHI_BIT     2
 125#define MP_ETH_IRQ_TXLO_BIT     3
 126
 127/* Port config bits */
 128#define MP_ETH_PCXR_2BSM_BIT    28 /* 2-byte incoming suffix */
 129
 130/* SDMA command bits */
 131#define MP_ETH_CMD_TXHI         (1 << 23)
 132#define MP_ETH_CMD_TXLO         (1 << 22)
 133
 134typedef struct mv88w8618_tx_desc {
 135    uint32_t cmdstat;
 136    uint16_t res;
 137    uint16_t bytes;
 138    uint32_t buffer;
 139    uint32_t next;
 140} mv88w8618_tx_desc;
 141
 142typedef struct mv88w8618_rx_desc {
 143    uint32_t cmdstat;
 144    uint16_t bytes;
 145    uint16_t buffer_size;
 146    uint32_t buffer;
 147    uint32_t next;
 148} mv88w8618_rx_desc;
 149
 150#define TYPE_MV88W8618_ETH "mv88w8618_eth"
 151#define MV88W8618_ETH(obj) \
 152    OBJECT_CHECK(mv88w8618_eth_state, (obj), TYPE_MV88W8618_ETH)
 153
 154typedef struct mv88w8618_eth_state {
 155    /*< private >*/
 156    SysBusDevice parent_obj;
 157    /*< public >*/
 158
 159    MemoryRegion iomem;
 160    qemu_irq irq;
 161    uint32_t smir;
 162    uint32_t icr;
 163    uint32_t imr;
 164    int mmio_index;
 165    uint32_t vlan_header;
 166    uint32_t tx_queue[2];
 167    uint32_t rx_queue[4];
 168    uint32_t frx_queue[4];
 169    uint32_t cur_rx[4];
 170    NICState *nic;
 171    NICConf conf;
 172} mv88w8618_eth_state;
 173
 174static void eth_rx_desc_put(uint32_t addr, mv88w8618_rx_desc *desc)
 175{
 176    cpu_to_le32s(&desc->cmdstat);
 177    cpu_to_le16s(&desc->bytes);
 178    cpu_to_le16s(&desc->buffer_size);
 179    cpu_to_le32s(&desc->buffer);
 180    cpu_to_le32s(&desc->next);
 181    cpu_physical_memory_write(addr, desc, sizeof(*desc));
 182}
 183
 184static void eth_rx_desc_get(uint32_t addr, mv88w8618_rx_desc *desc)
 185{
 186    cpu_physical_memory_read(addr, desc, sizeof(*desc));
 187    le32_to_cpus(&desc->cmdstat);
 188    le16_to_cpus(&desc->bytes);
 189    le16_to_cpus(&desc->buffer_size);
 190    le32_to_cpus(&desc->buffer);
 191    le32_to_cpus(&desc->next);
 192}
 193
 194static ssize_t eth_receive(NetClientState *nc, const uint8_t *buf, size_t size)
 195{
 196    mv88w8618_eth_state *s = qemu_get_nic_opaque(nc);
 197    uint32_t desc_addr;
 198    mv88w8618_rx_desc desc;
 199    int i;
 200
 201    for (i = 0; i < 4; i++) {
 202        desc_addr = s->cur_rx[i];
 203        if (!desc_addr) {
 204            continue;
 205        }
 206        do {
 207            eth_rx_desc_get(desc_addr, &desc);
 208            if ((desc.cmdstat & MP_ETH_RX_OWN) && desc.buffer_size >= size) {
 209                cpu_physical_memory_write(desc.buffer + s->vlan_header,
 210                                          buf, size);
 211                desc.bytes = size + s->vlan_header;
 212                desc.cmdstat &= ~MP_ETH_RX_OWN;
 213                s->cur_rx[i] = desc.next;
 214
 215                s->icr |= MP_ETH_IRQ_RX;
 216                if (s->icr & s->imr) {
 217                    qemu_irq_raise(s->irq);
 218                }
 219                eth_rx_desc_put(desc_addr, &desc);
 220                return size;
 221            }
 222            desc_addr = desc.next;
 223        } while (desc_addr != s->rx_queue[i]);
 224    }
 225    return size;
 226}
 227
 228static void eth_tx_desc_put(uint32_t addr, mv88w8618_tx_desc *desc)
 229{
 230    cpu_to_le32s(&desc->cmdstat);
 231    cpu_to_le16s(&desc->res);
 232    cpu_to_le16s(&desc->bytes);
 233    cpu_to_le32s(&desc->buffer);
 234    cpu_to_le32s(&desc->next);
 235    cpu_physical_memory_write(addr, desc, sizeof(*desc));
 236}
 237
 238static void eth_tx_desc_get(uint32_t addr, mv88w8618_tx_desc *desc)
 239{
 240    cpu_physical_memory_read(addr, desc, sizeof(*desc));
 241    le32_to_cpus(&desc->cmdstat);
 242    le16_to_cpus(&desc->res);
 243    le16_to_cpus(&desc->bytes);
 244    le32_to_cpus(&desc->buffer);
 245    le32_to_cpus(&desc->next);
 246}
 247
 248static void eth_send(mv88w8618_eth_state *s, int queue_index)
 249{
 250    uint32_t desc_addr = s->tx_queue[queue_index];
 251    mv88w8618_tx_desc desc;
 252    uint32_t next_desc;
 253    uint8_t buf[2048];
 254    int len;
 255
 256    do {
 257        eth_tx_desc_get(desc_addr, &desc);
 258        next_desc = desc.next;
 259        if (desc.cmdstat & MP_ETH_TX_OWN) {
 260            len = desc.bytes;
 261            if (len < 2048) {
 262                cpu_physical_memory_read(desc.buffer, buf, len);
 263                qemu_send_packet(qemu_get_queue(s->nic), buf, len);
 264            }
 265            desc.cmdstat &= ~MP_ETH_TX_OWN;
 266            s->icr |= 1 << (MP_ETH_IRQ_TXLO_BIT - queue_index);
 267            eth_tx_desc_put(desc_addr, &desc);
 268        }
 269        desc_addr = next_desc;
 270    } while (desc_addr != s->tx_queue[queue_index]);
 271}
 272
 273static uint64_t mv88w8618_eth_read(void *opaque, hwaddr offset,
 274                                   unsigned size)
 275{
 276    mv88w8618_eth_state *s = opaque;
 277
 278    switch (offset) {
 279    case MP_ETH_SMIR:
 280        if (s->smir & MP_ETH_SMIR_OPCODE) {
 281            switch (s->smir & MP_ETH_SMIR_ADDR) {
 282            case MP_ETH_PHY1_BMSR:
 283                return MP_PHY_BMSR_LINK | MP_PHY_BMSR_AUTONEG |
 284                       MP_ETH_SMIR_RDVALID;
 285            case MP_ETH_PHY1_PHYSID1:
 286                return (MP_PHY_88E3015 >> 16) | MP_ETH_SMIR_RDVALID;
 287            case MP_ETH_PHY1_PHYSID2:
 288                return (MP_PHY_88E3015 & 0xFFFF) | MP_ETH_SMIR_RDVALID;
 289            default:
 290                return MP_ETH_SMIR_RDVALID;
 291            }
 292        }
 293        return 0;
 294
 295    case MP_ETH_ICR:
 296        return s->icr;
 297
 298    case MP_ETH_IMR:
 299        return s->imr;
 300
 301    case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
 302        return s->frx_queue[(offset - MP_ETH_FRDP0)/4];
 303
 304    case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
 305        return s->rx_queue[(offset - MP_ETH_CRDP0)/4];
 306
 307    case MP_ETH_CTDP0 ... MP_ETH_CTDP1:
 308        return s->tx_queue[(offset - MP_ETH_CTDP0)/4];
 309
 310    default:
 311        return 0;
 312    }
 313}
 314
 315static void mv88w8618_eth_write(void *opaque, hwaddr offset,
 316                                uint64_t value, unsigned size)
 317{
 318    mv88w8618_eth_state *s = opaque;
 319
 320    switch (offset) {
 321    case MP_ETH_SMIR:
 322        s->smir = value;
 323        break;
 324
 325    case MP_ETH_PCXR:
 326        s->vlan_header = ((value >> MP_ETH_PCXR_2BSM_BIT) & 1) * 2;
 327        break;
 328
 329    case MP_ETH_SDCMR:
 330        if (value & MP_ETH_CMD_TXHI) {
 331            eth_send(s, 1);
 332        }
 333        if (value & MP_ETH_CMD_TXLO) {
 334            eth_send(s, 0);
 335        }
 336        if (value & (MP_ETH_CMD_TXHI | MP_ETH_CMD_TXLO) && s->icr & s->imr) {
 337            qemu_irq_raise(s->irq);
 338        }
 339        break;
 340
 341    case MP_ETH_ICR:
 342        s->icr &= value;
 343        break;
 344
 345    case MP_ETH_IMR:
 346        s->imr = value;
 347        if (s->icr & s->imr) {
 348            qemu_irq_raise(s->irq);
 349        }
 350        break;
 351
 352    case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
 353        s->frx_queue[(offset - MP_ETH_FRDP0)/4] = value;
 354        break;
 355
 356    case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
 357        s->rx_queue[(offset - MP_ETH_CRDP0)/4] =
 358            s->cur_rx[(offset - MP_ETH_CRDP0)/4] = value;
 359        break;
 360
 361    case MP_ETH_CTDP0 ... MP_ETH_CTDP1:
 362        s->tx_queue[(offset - MP_ETH_CTDP0)/4] = value;
 363        break;
 364    }
 365}
 366
 367static const MemoryRegionOps mv88w8618_eth_ops = {
 368    .read = mv88w8618_eth_read,
 369    .write = mv88w8618_eth_write,
 370    .endianness = DEVICE_NATIVE_ENDIAN,
 371};
 372
 373static void eth_cleanup(NetClientState *nc)
 374{
 375    mv88w8618_eth_state *s = qemu_get_nic_opaque(nc);
 376
 377    s->nic = NULL;
 378}
 379
 380static NetClientInfo net_mv88w8618_info = {
 381    .type = NET_CLIENT_DRIVER_NIC,
 382    .size = sizeof(NICState),
 383    .receive = eth_receive,
 384    .cleanup = eth_cleanup,
 385};
 386
 387static void mv88w8618_eth_init(Object *obj)
 388{
 389    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 390    DeviceState *dev = DEVICE(sbd);
 391    mv88w8618_eth_state *s = MV88W8618_ETH(dev);
 392
 393    sysbus_init_irq(sbd, &s->irq);
 394    memory_region_init_io(&s->iomem, obj, &mv88w8618_eth_ops, s,
 395                          "mv88w8618-eth", MP_ETH_SIZE);
 396    sysbus_init_mmio(sbd, &s->iomem);
 397}
 398
 399static void mv88w8618_eth_realize(DeviceState *dev, Error **errp)
 400{
 401    mv88w8618_eth_state *s = MV88W8618_ETH(dev);
 402
 403    s->nic = qemu_new_nic(&net_mv88w8618_info, &s->conf,
 404                          object_get_typename(OBJECT(dev)), dev->id, s);
 405}
 406
 407static const VMStateDescription mv88w8618_eth_vmsd = {
 408    .name = "mv88w8618_eth",
 409    .version_id = 1,
 410    .minimum_version_id = 1,
 411    .fields = (VMStateField[]) {
 412        VMSTATE_UINT32(smir, mv88w8618_eth_state),
 413        VMSTATE_UINT32(icr, mv88w8618_eth_state),
 414        VMSTATE_UINT32(imr, mv88w8618_eth_state),
 415        VMSTATE_UINT32(vlan_header, mv88w8618_eth_state),
 416        VMSTATE_UINT32_ARRAY(tx_queue, mv88w8618_eth_state, 2),
 417        VMSTATE_UINT32_ARRAY(rx_queue, mv88w8618_eth_state, 4),
 418        VMSTATE_UINT32_ARRAY(frx_queue, mv88w8618_eth_state, 4),
 419        VMSTATE_UINT32_ARRAY(cur_rx, mv88w8618_eth_state, 4),
 420        VMSTATE_END_OF_LIST()
 421    }
 422};
 423
 424static Property mv88w8618_eth_properties[] = {
 425    DEFINE_NIC_PROPERTIES(mv88w8618_eth_state, conf),
 426    DEFINE_PROP_END_OF_LIST(),
 427};
 428
 429static void mv88w8618_eth_class_init(ObjectClass *klass, void *data)
 430{
 431    DeviceClass *dc = DEVICE_CLASS(klass);
 432
 433    dc->vmsd = &mv88w8618_eth_vmsd;
 434    dc->props = mv88w8618_eth_properties;
 435    dc->realize = mv88w8618_eth_realize;
 436}
 437
 438static const TypeInfo mv88w8618_eth_info = {
 439    .name          = TYPE_MV88W8618_ETH,
 440    .parent        = TYPE_SYS_BUS_DEVICE,
 441    .instance_size = sizeof(mv88w8618_eth_state),
 442    .instance_init = mv88w8618_eth_init,
 443    .class_init    = mv88w8618_eth_class_init,
 444};
 445
 446/* LCD register offsets */
 447#define MP_LCD_IRQCTRL          0x180
 448#define MP_LCD_IRQSTAT          0x184
 449#define MP_LCD_SPICTRL          0x1ac
 450#define MP_LCD_INST             0x1bc
 451#define MP_LCD_DATA             0x1c0
 452
 453/* Mode magics */
 454#define MP_LCD_SPI_DATA         0x00100011
 455#define MP_LCD_SPI_CMD          0x00104011
 456#define MP_LCD_SPI_INVALID      0x00000000
 457
 458/* Commmands */
 459#define MP_LCD_INST_SETPAGE0    0xB0
 460/* ... */
 461#define MP_LCD_INST_SETPAGE7    0xB7
 462
 463#define MP_LCD_TEXTCOLOR        0xe0e0ff /* RRGGBB */
 464
 465#define TYPE_MUSICPAL_LCD "musicpal_lcd"
 466#define MUSICPAL_LCD(obj) \
 467    OBJECT_CHECK(musicpal_lcd_state, (obj), TYPE_MUSICPAL_LCD)
 468
 469typedef struct musicpal_lcd_state {
 470    /*< private >*/
 471    SysBusDevice parent_obj;
 472    /*< public >*/
 473
 474    MemoryRegion iomem;
 475    uint32_t brightness;
 476    uint32_t mode;
 477    uint32_t irqctrl;
 478    uint32_t page;
 479    uint32_t page_off;
 480    QemuConsole *con;
 481    uint8_t video_ram[128*64/8];
 482} musicpal_lcd_state;
 483
 484static uint8_t scale_lcd_color(musicpal_lcd_state *s, uint8_t col)
 485{
 486    switch (s->brightness) {
 487    case 7:
 488        return col;
 489    case 0:
 490        return 0;
 491    default:
 492        return (col * s->brightness) / 7;
 493    }
 494}
 495
 496#define SET_LCD_PIXEL(depth, type) \
 497static inline void glue(set_lcd_pixel, depth) \
 498        (musicpal_lcd_state *s, int x, int y, type col) \
 499{ \
 500    int dx, dy; \
 501    DisplaySurface *surface = qemu_console_surface(s->con); \
 502    type *pixel = &((type *) surface_data(surface))[(y * 128 * 3 + x) * 3]; \
 503\
 504    for (dy = 0; dy < 3; dy++, pixel += 127 * 3) \
 505        for (dx = 0; dx < 3; dx++, pixel++) \
 506            *pixel = col; \
 507}
 508SET_LCD_PIXEL(8, uint8_t)
 509SET_LCD_PIXEL(16, uint16_t)
 510SET_LCD_PIXEL(32, uint32_t)
 511
 512static void lcd_refresh(void *opaque)
 513{
 514    musicpal_lcd_state *s = opaque;
 515    DisplaySurface *surface = qemu_console_surface(s->con);
 516    int x, y, col;
 517
 518    switch (surface_bits_per_pixel(surface)) {
 519    case 0:
 520        return;
 521#define LCD_REFRESH(depth, func) \
 522    case depth: \
 523        col = func(scale_lcd_color(s, (MP_LCD_TEXTCOLOR >> 16) & 0xff), \
 524                   scale_lcd_color(s, (MP_LCD_TEXTCOLOR >> 8) & 0xff), \
 525                   scale_lcd_color(s, MP_LCD_TEXTCOLOR & 0xff)); \
 526        for (x = 0; x < 128; x++) { \
 527            for (y = 0; y < 64; y++) { \
 528                if (s->video_ram[x + (y/8)*128] & (1 << (y % 8))) { \
 529                    glue(set_lcd_pixel, depth)(s, x, y, col); \
 530                } else { \
 531                    glue(set_lcd_pixel, depth)(s, x, y, 0); \
 532                } \
 533            } \
 534        } \
 535        break;
 536    LCD_REFRESH(8, rgb_to_pixel8)
 537    LCD_REFRESH(16, rgb_to_pixel16)
 538    LCD_REFRESH(32, (is_surface_bgr(surface) ?
 539                     rgb_to_pixel32bgr : rgb_to_pixel32))
 540    default:
 541        hw_error("unsupported colour depth %i\n",
 542                 surface_bits_per_pixel(surface));
 543    }
 544
 545    dpy_gfx_update(s->con, 0, 0, 128*3, 64*3);
 546}
 547
 548static void lcd_invalidate(void *opaque)
 549{
 550}
 551
 552static void musicpal_lcd_gpio_brightness_in(void *opaque, int irq, int level)
 553{
 554    musicpal_lcd_state *s = opaque;
 555    s->brightness &= ~(1 << irq);
 556    s->brightness |= level << irq;
 557}
 558
 559static uint64_t musicpal_lcd_read(void *opaque, hwaddr offset,
 560                                  unsigned size)
 561{
 562    musicpal_lcd_state *s = opaque;
 563
 564    switch (offset) {
 565    case MP_LCD_IRQCTRL:
 566        return s->irqctrl;
 567
 568    default:
 569        return 0;
 570    }
 571}
 572
 573static void musicpal_lcd_write(void *opaque, hwaddr offset,
 574                               uint64_t value, unsigned size)
 575{
 576    musicpal_lcd_state *s = opaque;
 577
 578    switch (offset) {
 579    case MP_LCD_IRQCTRL:
 580        s->irqctrl = value;
 581        break;
 582
 583    case MP_LCD_SPICTRL:
 584        if (value == MP_LCD_SPI_DATA || value == MP_LCD_SPI_CMD) {
 585            s->mode = value;
 586        } else {
 587            s->mode = MP_LCD_SPI_INVALID;
 588        }
 589        break;
 590
 591    case MP_LCD_INST:
 592        if (value >= MP_LCD_INST_SETPAGE0 && value <= MP_LCD_INST_SETPAGE7) {
 593            s->page = value - MP_LCD_INST_SETPAGE0;
 594            s->page_off = 0;
 595        }
 596        break;
 597
 598    case MP_LCD_DATA:
 599        if (s->mode == MP_LCD_SPI_CMD) {
 600            if (value >= MP_LCD_INST_SETPAGE0 &&
 601                value <= MP_LCD_INST_SETPAGE7) {
 602                s->page = value - MP_LCD_INST_SETPAGE0;
 603                s->page_off = 0;
 604            }
 605        } else if (s->mode == MP_LCD_SPI_DATA) {
 606            s->video_ram[s->page*128 + s->page_off] = value;
 607            s->page_off = (s->page_off + 1) & 127;
 608        }
 609        break;
 610    }
 611}
 612
 613static const MemoryRegionOps musicpal_lcd_ops = {
 614    .read = musicpal_lcd_read,
 615    .write = musicpal_lcd_write,
 616    .endianness = DEVICE_NATIVE_ENDIAN,
 617};
 618
 619static const GraphicHwOps musicpal_gfx_ops = {
 620    .invalidate  = lcd_invalidate,
 621    .gfx_update  = lcd_refresh,
 622};
 623
 624static void musicpal_lcd_realize(DeviceState *dev, Error **errp)
 625{
 626    musicpal_lcd_state *s = MUSICPAL_LCD(dev);
 627    s->con = graphic_console_init(dev, 0, &musicpal_gfx_ops, s);
 628    qemu_console_resize(s->con, 128 * 3, 64 * 3);
 629}
 630
 631static void musicpal_lcd_init(Object *obj)
 632{
 633    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 634    DeviceState *dev = DEVICE(sbd);
 635    musicpal_lcd_state *s = MUSICPAL_LCD(dev);
 636
 637    s->brightness = 7;
 638
 639    memory_region_init_io(&s->iomem, obj, &musicpal_lcd_ops, s,
 640                          "musicpal-lcd", MP_LCD_SIZE);
 641    sysbus_init_mmio(sbd, &s->iomem);
 642
 643    qdev_init_gpio_in(dev, musicpal_lcd_gpio_brightness_in, 3);
 644}
 645
 646static const VMStateDescription musicpal_lcd_vmsd = {
 647    .name = "musicpal_lcd",
 648    .version_id = 1,
 649    .minimum_version_id = 1,
 650    .fields = (VMStateField[]) {
 651        VMSTATE_UINT32(brightness, musicpal_lcd_state),
 652        VMSTATE_UINT32(mode, musicpal_lcd_state),
 653        VMSTATE_UINT32(irqctrl, musicpal_lcd_state),
 654        VMSTATE_UINT32(page, musicpal_lcd_state),
 655        VMSTATE_UINT32(page_off, musicpal_lcd_state),
 656        VMSTATE_BUFFER(video_ram, musicpal_lcd_state),
 657        VMSTATE_END_OF_LIST()
 658    }
 659};
 660
 661static void musicpal_lcd_class_init(ObjectClass *klass, void *data)
 662{
 663    DeviceClass *dc = DEVICE_CLASS(klass);
 664
 665    dc->vmsd = &musicpal_lcd_vmsd;
 666    dc->realize = musicpal_lcd_realize;
 667}
 668
 669static const TypeInfo musicpal_lcd_info = {
 670    .name          = TYPE_MUSICPAL_LCD,
 671    .parent        = TYPE_SYS_BUS_DEVICE,
 672    .instance_size = sizeof(musicpal_lcd_state),
 673    .instance_init = musicpal_lcd_init,
 674    .class_init    = musicpal_lcd_class_init,
 675};
 676
 677/* PIC register offsets */
 678#define MP_PIC_STATUS           0x00
 679#define MP_PIC_ENABLE_SET       0x08
 680#define MP_PIC_ENABLE_CLR       0x0C
 681
 682#define TYPE_MV88W8618_PIC "mv88w8618_pic"
 683#define MV88W8618_PIC(obj) \
 684    OBJECT_CHECK(mv88w8618_pic_state, (obj), TYPE_MV88W8618_PIC)
 685
 686typedef struct mv88w8618_pic_state {
 687    /*< private >*/
 688    SysBusDevice parent_obj;
 689    /*< public >*/
 690
 691    MemoryRegion iomem;
 692    uint32_t level;
 693    uint32_t enabled;
 694    qemu_irq parent_irq;
 695} mv88w8618_pic_state;
 696
 697static void mv88w8618_pic_update(mv88w8618_pic_state *s)
 698{
 699    qemu_set_irq(s->parent_irq, (s->level & s->enabled));
 700}
 701
 702static void mv88w8618_pic_set_irq(void *opaque, int irq, int level)
 703{
 704    mv88w8618_pic_state *s = opaque;
 705
 706    if (level) {
 707        s->level |= 1 << irq;
 708    } else {
 709        s->level &= ~(1 << irq);
 710    }
 711    mv88w8618_pic_update(s);
 712}
 713
 714static uint64_t mv88w8618_pic_read(void *opaque, hwaddr offset,
 715                                   unsigned size)
 716{
 717    mv88w8618_pic_state *s = opaque;
 718
 719    switch (offset) {
 720    case MP_PIC_STATUS:
 721        return s->level & s->enabled;
 722
 723    default:
 724        return 0;
 725    }
 726}
 727
 728static void mv88w8618_pic_write(void *opaque, hwaddr offset,
 729                                uint64_t value, unsigned size)
 730{
 731    mv88w8618_pic_state *s = opaque;
 732
 733    switch (offset) {
 734    case MP_PIC_ENABLE_SET:
 735        s->enabled |= value;
 736        break;
 737
 738    case MP_PIC_ENABLE_CLR:
 739        s->enabled &= ~value;
 740        s->level &= ~value;
 741        break;
 742    }
 743    mv88w8618_pic_update(s);
 744}
 745
 746static void mv88w8618_pic_reset(DeviceState *d)
 747{
 748    mv88w8618_pic_state *s = MV88W8618_PIC(d);
 749
 750    s->level = 0;
 751    s->enabled = 0;
 752}
 753
 754static const MemoryRegionOps mv88w8618_pic_ops = {
 755    .read = mv88w8618_pic_read,
 756    .write = mv88w8618_pic_write,
 757    .endianness = DEVICE_NATIVE_ENDIAN,
 758};
 759
 760static void mv88w8618_pic_init(Object *obj)
 761{
 762    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
 763    mv88w8618_pic_state *s = MV88W8618_PIC(dev);
 764
 765    qdev_init_gpio_in(DEVICE(dev), mv88w8618_pic_set_irq, 32);
 766    sysbus_init_irq(dev, &s->parent_irq);
 767    memory_region_init_io(&s->iomem, obj, &mv88w8618_pic_ops, s,
 768                          "musicpal-pic", MP_PIC_SIZE);
 769    sysbus_init_mmio(dev, &s->iomem);
 770}
 771
 772static const VMStateDescription mv88w8618_pic_vmsd = {
 773    .name = "mv88w8618_pic",
 774    .version_id = 1,
 775    .minimum_version_id = 1,
 776    .fields = (VMStateField[]) {
 777        VMSTATE_UINT32(level, mv88w8618_pic_state),
 778        VMSTATE_UINT32(enabled, mv88w8618_pic_state),
 779        VMSTATE_END_OF_LIST()
 780    }
 781};
 782
 783static void mv88w8618_pic_class_init(ObjectClass *klass, void *data)
 784{
 785    DeviceClass *dc = DEVICE_CLASS(klass);
 786
 787    dc->reset = mv88w8618_pic_reset;
 788    dc->vmsd = &mv88w8618_pic_vmsd;
 789}
 790
 791static const TypeInfo mv88w8618_pic_info = {
 792    .name          = TYPE_MV88W8618_PIC,
 793    .parent        = TYPE_SYS_BUS_DEVICE,
 794    .instance_size = sizeof(mv88w8618_pic_state),
 795    .instance_init = mv88w8618_pic_init,
 796    .class_init    = mv88w8618_pic_class_init,
 797};
 798
 799/* PIT register offsets */
 800#define MP_PIT_TIMER1_LENGTH    0x00
 801/* ... */
 802#define MP_PIT_TIMER4_LENGTH    0x0C
 803#define MP_PIT_CONTROL          0x10
 804#define MP_PIT_TIMER1_VALUE     0x14
 805/* ... */
 806#define MP_PIT_TIMER4_VALUE     0x20
 807#define MP_BOARD_RESET          0x34
 808
 809/* Magic board reset value (probably some watchdog behind it) */
 810#define MP_BOARD_RESET_MAGIC    0x10000
 811
 812typedef struct mv88w8618_timer_state {
 813    ptimer_state *ptimer;
 814    uint32_t limit;
 815    int freq;
 816    qemu_irq irq;
 817} mv88w8618_timer_state;
 818
 819#define TYPE_MV88W8618_PIT "mv88w8618_pit"
 820#define MV88W8618_PIT(obj) \
 821    OBJECT_CHECK(mv88w8618_pit_state, (obj), TYPE_MV88W8618_PIT)
 822
 823typedef struct mv88w8618_pit_state {
 824    /*< private >*/
 825    SysBusDevice parent_obj;
 826    /*< public >*/
 827
 828    MemoryRegion iomem;
 829    mv88w8618_timer_state timer[4];
 830} mv88w8618_pit_state;
 831
 832static void mv88w8618_timer_tick(void *opaque)
 833{
 834    mv88w8618_timer_state *s = opaque;
 835
 836    qemu_irq_raise(s->irq);
 837}
 838
 839static void mv88w8618_timer_init(SysBusDevice *dev, mv88w8618_timer_state *s,
 840                                 uint32_t freq)
 841{
 842    QEMUBH *bh;
 843
 844    sysbus_init_irq(dev, &s->irq);
 845    s->freq = freq;
 846
 847    bh = qemu_bh_new(mv88w8618_timer_tick, s);
 848    s->ptimer = ptimer_init(bh, PTIMER_POLICY_DEFAULT);
 849}
 850
 851static uint64_t mv88w8618_pit_read(void *opaque, hwaddr offset,
 852                                   unsigned size)
 853{
 854    mv88w8618_pit_state *s = opaque;
 855    mv88w8618_timer_state *t;
 856
 857    switch (offset) {
 858    case MP_PIT_TIMER1_VALUE ... MP_PIT_TIMER4_VALUE:
 859        t = &s->timer[(offset-MP_PIT_TIMER1_VALUE) >> 2];
 860        return ptimer_get_count(t->ptimer);
 861
 862    default:
 863        return 0;
 864    }
 865}
 866
 867static void mv88w8618_pit_write(void *opaque, hwaddr offset,
 868                                uint64_t value, unsigned size)
 869{
 870    mv88w8618_pit_state *s = opaque;
 871    mv88w8618_timer_state *t;
 872    int i;
 873
 874    switch (offset) {
 875    case MP_PIT_TIMER1_LENGTH ... MP_PIT_TIMER4_LENGTH:
 876        t = &s->timer[offset >> 2];
 877        t->limit = value;
 878        if (t->limit > 0) {
 879            ptimer_set_limit(t->ptimer, t->limit, 1);
 880        } else {
 881            ptimer_stop(t->ptimer);
 882        }
 883        break;
 884
 885    case MP_PIT_CONTROL:
 886        for (i = 0; i < 4; i++) {
 887            t = &s->timer[i];
 888            if (value & 0xf && t->limit > 0) {
 889                ptimer_set_limit(t->ptimer, t->limit, 0);
 890                ptimer_set_freq(t->ptimer, t->freq);
 891                ptimer_run(t->ptimer, 0);
 892            } else {
 893                ptimer_stop(t->ptimer);
 894            }
 895            value >>= 4;
 896        }
 897        break;
 898
 899    case MP_BOARD_RESET:
 900        if (value == MP_BOARD_RESET_MAGIC) {
 901            qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
 902        }
 903        break;
 904    }
 905}
 906
 907static void mv88w8618_pit_reset(DeviceState *d)
 908{
 909    mv88w8618_pit_state *s = MV88W8618_PIT(d);
 910    int i;
 911
 912    for (i = 0; i < 4; i++) {
 913        ptimer_stop(s->timer[i].ptimer);
 914        s->timer[i].limit = 0;
 915    }
 916}
 917
 918static const MemoryRegionOps mv88w8618_pit_ops = {
 919    .read = mv88w8618_pit_read,
 920    .write = mv88w8618_pit_write,
 921    .endianness = DEVICE_NATIVE_ENDIAN,
 922};
 923
 924static void mv88w8618_pit_init(Object *obj)
 925{
 926    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
 927    mv88w8618_pit_state *s = MV88W8618_PIT(dev);
 928    int i;
 929
 930    /* Letting them all run at 1 MHz is likely just a pragmatic
 931     * simplification. */
 932    for (i = 0; i < 4; i++) {
 933        mv88w8618_timer_init(dev, &s->timer[i], 1000000);
 934    }
 935
 936    memory_region_init_io(&s->iomem, obj, &mv88w8618_pit_ops, s,
 937                          "musicpal-pit", MP_PIT_SIZE);
 938    sysbus_init_mmio(dev, &s->iomem);
 939}
 940
 941static const VMStateDescription mv88w8618_timer_vmsd = {
 942    .name = "timer",
 943    .version_id = 1,
 944    .minimum_version_id = 1,
 945    .fields = (VMStateField[]) {
 946        VMSTATE_PTIMER(ptimer, mv88w8618_timer_state),
 947        VMSTATE_UINT32(limit, mv88w8618_timer_state),
 948        VMSTATE_END_OF_LIST()
 949    }
 950};
 951
 952static const VMStateDescription mv88w8618_pit_vmsd = {
 953    .name = "mv88w8618_pit",
 954    .version_id = 1,
 955    .minimum_version_id = 1,
 956    .fields = (VMStateField[]) {
 957        VMSTATE_STRUCT_ARRAY(timer, mv88w8618_pit_state, 4, 1,
 958                             mv88w8618_timer_vmsd, mv88w8618_timer_state),
 959        VMSTATE_END_OF_LIST()
 960    }
 961};
 962
 963static void mv88w8618_pit_class_init(ObjectClass *klass, void *data)
 964{
 965    DeviceClass *dc = DEVICE_CLASS(klass);
 966
 967    dc->reset = mv88w8618_pit_reset;
 968    dc->vmsd = &mv88w8618_pit_vmsd;
 969}
 970
 971static const TypeInfo mv88w8618_pit_info = {
 972    .name          = TYPE_MV88W8618_PIT,
 973    .parent        = TYPE_SYS_BUS_DEVICE,
 974    .instance_size = sizeof(mv88w8618_pit_state),
 975    .instance_init = mv88w8618_pit_init,
 976    .class_init    = mv88w8618_pit_class_init,
 977};
 978
 979/* Flash config register offsets */
 980#define MP_FLASHCFG_CFGR0    0x04
 981
 982#define TYPE_MV88W8618_FLASHCFG "mv88w8618_flashcfg"
 983#define MV88W8618_FLASHCFG(obj) \
 984    OBJECT_CHECK(mv88w8618_flashcfg_state, (obj), TYPE_MV88W8618_FLASHCFG)
 985
 986typedef struct mv88w8618_flashcfg_state {
 987    /*< private >*/
 988    SysBusDevice parent_obj;
 989    /*< public >*/
 990
 991    MemoryRegion iomem;
 992    uint32_t cfgr0;
 993} mv88w8618_flashcfg_state;
 994
 995static uint64_t mv88w8618_flashcfg_read(void *opaque,
 996                                        hwaddr offset,
 997                                        unsigned size)
 998{
 999    mv88w8618_flashcfg_state *s = opaque;
1000
1001    switch (offset) {
1002    case MP_FLASHCFG_CFGR0:
1003        return s->cfgr0;
1004
1005    default:
1006        return 0;
1007    }
1008}
1009
1010static void mv88w8618_flashcfg_write(void *opaque, hwaddr offset,
1011                                     uint64_t value, unsigned size)
1012{
1013    mv88w8618_flashcfg_state *s = opaque;
1014
1015    switch (offset) {
1016    case MP_FLASHCFG_CFGR0:
1017        s->cfgr0 = value;
1018        break;
1019    }
1020}
1021
1022static const MemoryRegionOps mv88w8618_flashcfg_ops = {
1023    .read = mv88w8618_flashcfg_read,
1024    .write = mv88w8618_flashcfg_write,
1025    .endianness = DEVICE_NATIVE_ENDIAN,
1026};
1027
1028static void mv88w8618_flashcfg_init(Object *obj)
1029{
1030    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
1031    mv88w8618_flashcfg_state *s = MV88W8618_FLASHCFG(dev);
1032
1033    s->cfgr0 = 0xfffe4285; /* Default as set by U-Boot for 8 MB flash */
1034    memory_region_init_io(&s->iomem, obj, &mv88w8618_flashcfg_ops, s,
1035                          "musicpal-flashcfg", MP_FLASHCFG_SIZE);
1036    sysbus_init_mmio(dev, &s->iomem);
1037}
1038
1039static const VMStateDescription mv88w8618_flashcfg_vmsd = {
1040    .name = "mv88w8618_flashcfg",
1041    .version_id = 1,
1042    .minimum_version_id = 1,
1043    .fields = (VMStateField[]) {
1044        VMSTATE_UINT32(cfgr0, mv88w8618_flashcfg_state),
1045        VMSTATE_END_OF_LIST()
1046    }
1047};
1048
1049static void mv88w8618_flashcfg_class_init(ObjectClass *klass, void *data)
1050{
1051    DeviceClass *dc = DEVICE_CLASS(klass);
1052
1053    dc->vmsd = &mv88w8618_flashcfg_vmsd;
1054}
1055
1056static const TypeInfo mv88w8618_flashcfg_info = {
1057    .name          = TYPE_MV88W8618_FLASHCFG,
1058    .parent        = TYPE_SYS_BUS_DEVICE,
1059    .instance_size = sizeof(mv88w8618_flashcfg_state),
1060    .instance_init = mv88w8618_flashcfg_init,
1061    .class_init    = mv88w8618_flashcfg_class_init,
1062};
1063
1064/* Misc register offsets */
1065#define MP_MISC_BOARD_REVISION  0x18
1066
1067#define MP_BOARD_REVISION       0x31
1068
1069typedef struct {
1070    SysBusDevice parent_obj;
1071    MemoryRegion iomem;
1072} MusicPalMiscState;
1073
1074#define TYPE_MUSICPAL_MISC "musicpal-misc"
1075#define MUSICPAL_MISC(obj) \
1076     OBJECT_CHECK(MusicPalMiscState, (obj), TYPE_MUSICPAL_MISC)
1077
1078static uint64_t musicpal_misc_read(void *opaque, hwaddr offset,
1079                                   unsigned size)
1080{
1081    switch (offset) {
1082    case MP_MISC_BOARD_REVISION:
1083        return MP_BOARD_REVISION;
1084
1085    default:
1086        return 0;
1087    }
1088}
1089
1090static void musicpal_misc_write(void *opaque, hwaddr offset,
1091                                uint64_t value, unsigned size)
1092{
1093}
1094
1095static const MemoryRegionOps musicpal_misc_ops = {
1096    .read = musicpal_misc_read,
1097    .write = musicpal_misc_write,
1098    .endianness = DEVICE_NATIVE_ENDIAN,
1099};
1100
1101static void musicpal_misc_init(Object *obj)
1102{
1103    SysBusDevice *sd = SYS_BUS_DEVICE(obj);
1104    MusicPalMiscState *s = MUSICPAL_MISC(obj);
1105
1106    memory_region_init_io(&s->iomem, OBJECT(s), &musicpal_misc_ops, NULL,
1107                          "musicpal-misc", MP_MISC_SIZE);
1108    sysbus_init_mmio(sd, &s->iomem);
1109}
1110
1111static const TypeInfo musicpal_misc_info = {
1112    .name = TYPE_MUSICPAL_MISC,
1113    .parent = TYPE_SYS_BUS_DEVICE,
1114    .instance_init = musicpal_misc_init,
1115    .instance_size = sizeof(MusicPalMiscState),
1116};
1117
1118/* WLAN register offsets */
1119#define MP_WLAN_MAGIC1          0x11c
1120#define MP_WLAN_MAGIC2          0x124
1121
1122static uint64_t mv88w8618_wlan_read(void *opaque, hwaddr offset,
1123                                    unsigned size)
1124{
1125    switch (offset) {
1126    /* Workaround to allow loading the binary-only wlandrv.ko crap
1127     * from the original Freecom firmware. */
1128    case MP_WLAN_MAGIC1:
1129        return ~3;
1130    case MP_WLAN_MAGIC2:
1131        return -1;
1132
1133    default:
1134        return 0;
1135    }
1136}
1137
1138static void mv88w8618_wlan_write(void *opaque, hwaddr offset,
1139                                 uint64_t value, unsigned size)
1140{
1141}
1142
1143static const MemoryRegionOps mv88w8618_wlan_ops = {
1144    .read = mv88w8618_wlan_read,
1145    .write =mv88w8618_wlan_write,
1146    .endianness = DEVICE_NATIVE_ENDIAN,
1147};
1148
1149static int mv88w8618_wlan_init(SysBusDevice *dev)
1150{
1151    MemoryRegion *iomem = g_new(MemoryRegion, 1);
1152
1153    memory_region_init_io(iomem, OBJECT(dev), &mv88w8618_wlan_ops, NULL,
1154                          "musicpal-wlan", MP_WLAN_SIZE);
1155    sysbus_init_mmio(dev, iomem);
1156    return 0;
1157}
1158
1159/* GPIO register offsets */
1160#define MP_GPIO_OE_LO           0x008
1161#define MP_GPIO_OUT_LO          0x00c
1162#define MP_GPIO_IN_LO           0x010
1163#define MP_GPIO_IER_LO          0x014
1164#define MP_GPIO_IMR_LO          0x018
1165#define MP_GPIO_ISR_LO          0x020
1166#define MP_GPIO_OE_HI           0x508
1167#define MP_GPIO_OUT_HI          0x50c
1168#define MP_GPIO_IN_HI           0x510
1169#define MP_GPIO_IER_HI          0x514
1170#define MP_GPIO_IMR_HI          0x518
1171#define MP_GPIO_ISR_HI          0x520
1172
1173/* GPIO bits & masks */
1174#define MP_GPIO_LCD_BRIGHTNESS  0x00070000
1175#define MP_GPIO_I2C_DATA_BIT    29
1176#define MP_GPIO_I2C_CLOCK_BIT   30
1177
1178/* LCD brightness bits in GPIO_OE_HI */
1179#define MP_OE_LCD_BRIGHTNESS    0x0007
1180
1181#define TYPE_MUSICPAL_GPIO "musicpal_gpio"
1182#define MUSICPAL_GPIO(obj) \
1183    OBJECT_CHECK(musicpal_gpio_state, (obj), TYPE_MUSICPAL_GPIO)
1184
1185typedef struct musicpal_gpio_state {
1186    /*< private >*/
1187    SysBusDevice parent_obj;
1188    /*< public >*/
1189
1190    MemoryRegion iomem;
1191    uint32_t lcd_brightness;
1192    uint32_t out_state;
1193    uint32_t in_state;
1194    uint32_t ier;
1195    uint32_t imr;
1196    uint32_t isr;
1197    qemu_irq irq;
1198    qemu_irq out[5]; /* 3 brightness out + 2 lcd (data and clock ) */
1199} musicpal_gpio_state;
1200
1201static void musicpal_gpio_brightness_update(musicpal_gpio_state *s) {
1202    int i;
1203    uint32_t brightness;
1204
1205    /* compute brightness ratio */
1206    switch (s->lcd_brightness) {
1207    case 0x00000007:
1208        brightness = 0;
1209        break;
1210
1211    case 0x00020000:
1212        brightness = 1;
1213        break;
1214
1215    case 0x00020001:
1216        brightness = 2;
1217        break;
1218
1219    case 0x00040000:
1220        brightness = 3;
1221        break;
1222
1223    case 0x00010006:
1224        brightness = 4;
1225        break;
1226
1227    case 0x00020005:
1228        brightness = 5;
1229        break;
1230
1231    case 0x00040003:
1232        brightness = 6;
1233        break;
1234
1235    case 0x00030004:
1236    default:
1237        brightness = 7;
1238    }
1239
1240    /* set lcd brightness GPIOs  */
1241    for (i = 0; i <= 2; i++) {
1242        qemu_set_irq(s->out[i], (brightness >> i) & 1);
1243    }
1244}
1245
1246static void musicpal_gpio_pin_event(void *opaque, int pin, int level)
1247{
1248    musicpal_gpio_state *s = opaque;
1249    uint32_t mask = 1 << pin;
1250    uint32_t delta = level << pin;
1251    uint32_t old = s->in_state & mask;
1252
1253    s->in_state &= ~mask;
1254    s->in_state |= delta;
1255
1256    if ((old ^ delta) &&
1257        ((level && (s->imr & mask)) || (!level && (s->ier & mask)))) {
1258        s->isr = mask;
1259        qemu_irq_raise(s->irq);
1260    }
1261}
1262
1263static uint64_t musicpal_gpio_read(void *opaque, hwaddr offset,
1264                                   unsigned size)
1265{
1266    musicpal_gpio_state *s = opaque;
1267
1268    switch (offset) {
1269    case MP_GPIO_OE_HI: /* used for LCD brightness control */
1270        return s->lcd_brightness & MP_OE_LCD_BRIGHTNESS;
1271
1272    case MP_GPIO_OUT_LO:
1273        return s->out_state & 0xFFFF;
1274    case MP_GPIO_OUT_HI:
1275        return s->out_state >> 16;
1276
1277    case MP_GPIO_IN_LO:
1278        return s->in_state & 0xFFFF;
1279    case MP_GPIO_IN_HI:
1280        return s->in_state >> 16;
1281
1282    case MP_GPIO_IER_LO:
1283        return s->ier & 0xFFFF;
1284    case MP_GPIO_IER_HI:
1285        return s->ier >> 16;
1286
1287    case MP_GPIO_IMR_LO:
1288        return s->imr & 0xFFFF;
1289    case MP_GPIO_IMR_HI:
1290        return s->imr >> 16;
1291
1292    case MP_GPIO_ISR_LO:
1293        return s->isr & 0xFFFF;
1294    case MP_GPIO_ISR_HI:
1295        return s->isr >> 16;
1296
1297    default:
1298        return 0;
1299    }
1300}
1301
1302static void musicpal_gpio_write(void *opaque, hwaddr offset,
1303                                uint64_t value, unsigned size)
1304{
1305    musicpal_gpio_state *s = opaque;
1306    switch (offset) {
1307    case MP_GPIO_OE_HI: /* used for LCD brightness control */
1308        s->lcd_brightness = (s->lcd_brightness & MP_GPIO_LCD_BRIGHTNESS) |
1309                         (value & MP_OE_LCD_BRIGHTNESS);
1310        musicpal_gpio_brightness_update(s);
1311        break;
1312
1313    case MP_GPIO_OUT_LO:
1314        s->out_state = (s->out_state & 0xFFFF0000) | (value & 0xFFFF);
1315        break;
1316    case MP_GPIO_OUT_HI:
1317        s->out_state = (s->out_state & 0xFFFF) | (value << 16);
1318        s->lcd_brightness = (s->lcd_brightness & 0xFFFF) |
1319                            (s->out_state & MP_GPIO_LCD_BRIGHTNESS);
1320        musicpal_gpio_brightness_update(s);
1321        qemu_set_irq(s->out[3], (s->out_state >> MP_GPIO_I2C_DATA_BIT) & 1);
1322        qemu_set_irq(s->out[4], (s->out_state >> MP_GPIO_I2C_CLOCK_BIT) & 1);
1323        break;
1324
1325    case MP_GPIO_IER_LO:
1326        s->ier = (s->ier & 0xFFFF0000) | (value & 0xFFFF);
1327        break;
1328    case MP_GPIO_IER_HI:
1329        s->ier = (s->ier & 0xFFFF) | (value << 16);
1330        break;
1331
1332    case MP_GPIO_IMR_LO:
1333        s->imr = (s->imr & 0xFFFF0000) | (value & 0xFFFF);
1334        break;
1335    case MP_GPIO_IMR_HI:
1336        s->imr = (s->imr & 0xFFFF) | (value << 16);
1337        break;
1338    }
1339}
1340
1341static const MemoryRegionOps musicpal_gpio_ops = {
1342    .read = musicpal_gpio_read,
1343    .write = musicpal_gpio_write,
1344    .endianness = DEVICE_NATIVE_ENDIAN,
1345};
1346
1347static void musicpal_gpio_reset(DeviceState *d)
1348{
1349    musicpal_gpio_state *s = MUSICPAL_GPIO(d);
1350
1351    s->lcd_brightness = 0;
1352    s->out_state = 0;
1353    s->in_state = 0xffffffff;
1354    s->ier = 0;
1355    s->imr = 0;
1356    s->isr = 0;
1357}
1358
1359static void musicpal_gpio_init(Object *obj)
1360{
1361    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
1362    DeviceState *dev = DEVICE(sbd);
1363    musicpal_gpio_state *s = MUSICPAL_GPIO(dev);
1364
1365    sysbus_init_irq(sbd, &s->irq);
1366
1367    memory_region_init_io(&s->iomem, obj, &musicpal_gpio_ops, s,
1368                          "musicpal-gpio", MP_GPIO_SIZE);
1369    sysbus_init_mmio(sbd, &s->iomem);
1370
1371    qdev_init_gpio_out(dev, s->out, ARRAY_SIZE(s->out));
1372
1373    qdev_init_gpio_in(dev, musicpal_gpio_pin_event, 32);
1374}
1375
1376static const VMStateDescription musicpal_gpio_vmsd = {
1377    .name = "musicpal_gpio",
1378    .version_id = 1,
1379    .minimum_version_id = 1,
1380    .fields = (VMStateField[]) {
1381        VMSTATE_UINT32(lcd_brightness, musicpal_gpio_state),
1382        VMSTATE_UINT32(out_state, musicpal_gpio_state),
1383        VMSTATE_UINT32(in_state, musicpal_gpio_state),
1384        VMSTATE_UINT32(ier, musicpal_gpio_state),
1385        VMSTATE_UINT32(imr, musicpal_gpio_state),
1386        VMSTATE_UINT32(isr, musicpal_gpio_state),
1387        VMSTATE_END_OF_LIST()
1388    }
1389};
1390
1391static void musicpal_gpio_class_init(ObjectClass *klass, void *data)
1392{
1393    DeviceClass *dc = DEVICE_CLASS(klass);
1394
1395    dc->reset = musicpal_gpio_reset;
1396    dc->vmsd = &musicpal_gpio_vmsd;
1397}
1398
1399static const TypeInfo musicpal_gpio_info = {
1400    .name          = TYPE_MUSICPAL_GPIO,
1401    .parent        = TYPE_SYS_BUS_DEVICE,
1402    .instance_size = sizeof(musicpal_gpio_state),
1403    .instance_init = musicpal_gpio_init,
1404    .class_init    = musicpal_gpio_class_init,
1405};
1406
1407/* Keyboard codes & masks */
1408#define KEY_RELEASED            0x80
1409#define KEY_CODE                0x7f
1410
1411#define KEYCODE_TAB             0x0f
1412#define KEYCODE_ENTER           0x1c
1413#define KEYCODE_F               0x21
1414#define KEYCODE_M               0x32
1415
1416#define KEYCODE_EXTENDED        0xe0
1417#define KEYCODE_UP              0x48
1418#define KEYCODE_DOWN            0x50
1419#define KEYCODE_LEFT            0x4b
1420#define KEYCODE_RIGHT           0x4d
1421
1422#define MP_KEY_WHEEL_VOL       (1 << 0)
1423#define MP_KEY_WHEEL_VOL_INV   (1 << 1)
1424#define MP_KEY_WHEEL_NAV       (1 << 2)
1425#define MP_KEY_WHEEL_NAV_INV   (1 << 3)
1426#define MP_KEY_BTN_FAVORITS    (1 << 4)
1427#define MP_KEY_BTN_MENU        (1 << 5)
1428#define MP_KEY_BTN_VOLUME      (1 << 6)
1429#define MP_KEY_BTN_NAVIGATION  (1 << 7)
1430
1431#define TYPE_MUSICPAL_KEY "musicpal_key"
1432#define MUSICPAL_KEY(obj) \
1433    OBJECT_CHECK(musicpal_key_state, (obj), TYPE_MUSICPAL_KEY)
1434
1435typedef struct musicpal_key_state {
1436    /*< private >*/
1437    SysBusDevice parent_obj;
1438    /*< public >*/
1439
1440    MemoryRegion iomem;
1441    uint32_t kbd_extended;
1442    uint32_t pressed_keys;
1443    qemu_irq out[8];
1444} musicpal_key_state;
1445
1446static void musicpal_key_event(void *opaque, int keycode)
1447{
1448    musicpal_key_state *s = opaque;
1449    uint32_t event = 0;
1450    int i;
1451
1452    if (keycode == KEYCODE_EXTENDED) {
1453        s->kbd_extended = 1;
1454        return;
1455    }
1456
1457    if (s->kbd_extended) {
1458        switch (keycode & KEY_CODE) {
1459        case KEYCODE_UP:
1460            event = MP_KEY_WHEEL_NAV | MP_KEY_WHEEL_NAV_INV;
1461            break;
1462
1463        case KEYCODE_DOWN:
1464            event = MP_KEY_WHEEL_NAV;
1465            break;
1466
1467        case KEYCODE_LEFT:
1468            event = MP_KEY_WHEEL_VOL | MP_KEY_WHEEL_VOL_INV;
1469            break;
1470
1471        case KEYCODE_RIGHT:
1472            event = MP_KEY_WHEEL_VOL;
1473            break;
1474        }
1475    } else {
1476        switch (keycode & KEY_CODE) {
1477        case KEYCODE_F:
1478            event = MP_KEY_BTN_FAVORITS;
1479            break;
1480
1481        case KEYCODE_TAB:
1482            event = MP_KEY_BTN_VOLUME;
1483            break;
1484
1485        case KEYCODE_ENTER:
1486            event = MP_KEY_BTN_NAVIGATION;
1487            break;
1488
1489        case KEYCODE_M:
1490            event = MP_KEY_BTN_MENU;
1491            break;
1492        }
1493        /* Do not repeat already pressed buttons */
1494        if (!(keycode & KEY_RELEASED) && (s->pressed_keys & event)) {
1495            event = 0;
1496        }
1497    }
1498
1499    if (event) {
1500        /* Raise GPIO pin first if repeating a key */
1501        if (!(keycode & KEY_RELEASED) && (s->pressed_keys & event)) {
1502            for (i = 0; i <= 7; i++) {
1503                if (event & (1 << i)) {
1504                    qemu_set_irq(s->out[i], 1);
1505                }
1506            }
1507        }
1508        for (i = 0; i <= 7; i++) {
1509            if (event & (1 << i)) {
1510                qemu_set_irq(s->out[i], !!(keycode & KEY_RELEASED));
1511            }
1512        }
1513        if (keycode & KEY_RELEASED) {
1514            s->pressed_keys &= ~event;
1515        } else {
1516            s->pressed_keys |= event;
1517        }
1518    }
1519
1520    s->kbd_extended = 0;
1521}
1522
1523static void musicpal_key_init(Object *obj)
1524{
1525    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
1526    DeviceState *dev = DEVICE(sbd);
1527    musicpal_key_state *s = MUSICPAL_KEY(dev);
1528
1529    memory_region_init(&s->iomem, obj, "dummy", 0);
1530    sysbus_init_mmio(sbd, &s->iomem);
1531
1532    s->kbd_extended = 0;
1533    s->pressed_keys = 0;
1534
1535    qdev_init_gpio_out(dev, s->out, ARRAY_SIZE(s->out));
1536
1537    qemu_add_kbd_event_handler(musicpal_key_event, s);
1538}
1539
1540static const VMStateDescription musicpal_key_vmsd = {
1541    .name = "musicpal_key",
1542    .version_id = 1,
1543    .minimum_version_id = 1,
1544    .fields = (VMStateField[]) {
1545        VMSTATE_UINT32(kbd_extended, musicpal_key_state),
1546        VMSTATE_UINT32(pressed_keys, musicpal_key_state),
1547        VMSTATE_END_OF_LIST()
1548    }
1549};
1550
1551static void musicpal_key_class_init(ObjectClass *klass, void *data)
1552{
1553    DeviceClass *dc = DEVICE_CLASS(klass);
1554
1555    dc->vmsd = &musicpal_key_vmsd;
1556}
1557
1558static const TypeInfo musicpal_key_info = {
1559    .name          = TYPE_MUSICPAL_KEY,
1560    .parent        = TYPE_SYS_BUS_DEVICE,
1561    .instance_size = sizeof(musicpal_key_state),
1562    .instance_init = musicpal_key_init,
1563    .class_init    = musicpal_key_class_init,
1564};
1565
1566static struct arm_boot_info musicpal_binfo = {
1567    .loader_start = 0x0,
1568    .board_id = 0x20e,
1569};
1570
1571static void musicpal_init(MachineState *machine)
1572{
1573    const char *kernel_filename = machine->kernel_filename;
1574    const char *kernel_cmdline = machine->kernel_cmdline;
1575    const char *initrd_filename = machine->initrd_filename;
1576    ARMCPU *cpu;
1577    qemu_irq pic[32];
1578    DeviceState *dev;
1579    DeviceState *i2c_dev;
1580    DeviceState *lcd_dev;
1581    DeviceState *key_dev;
1582    DeviceState *wm8750_dev;
1583    SysBusDevice *s;
1584    I2CBus *i2c;
1585    int i;
1586    unsigned long flash_size;
1587    DriveInfo *dinfo;
1588    MemoryRegion *address_space_mem = get_system_memory();
1589    MemoryRegion *ram = g_new(MemoryRegion, 1);
1590    MemoryRegion *sram = g_new(MemoryRegion, 1);
1591
1592    cpu = ARM_CPU(cpu_create(machine->cpu_type));
1593
1594    /* For now we use a fixed - the original - RAM size */
1595    memory_region_allocate_system_memory(ram, NULL, "musicpal.ram",
1596                                         MP_RAM_DEFAULT_SIZE);
1597    memory_region_add_subregion(address_space_mem, 0, ram);
1598
1599    memory_region_init_ram(sram, NULL, "musicpal.sram", MP_SRAM_SIZE,
1600                           &error_fatal);
1601    memory_region_add_subregion(address_space_mem, MP_SRAM_BASE, sram);
1602
1603    dev = sysbus_create_simple(TYPE_MV88W8618_PIC, MP_PIC_BASE,
1604                               qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ));
1605    for (i = 0; i < 32; i++) {
1606        pic[i] = qdev_get_gpio_in(dev, i);
1607    }
1608    sysbus_create_varargs(TYPE_MV88W8618_PIT, MP_PIT_BASE, pic[MP_TIMER1_IRQ],
1609                          pic[MP_TIMER2_IRQ], pic[MP_TIMER3_IRQ],
1610                          pic[MP_TIMER4_IRQ], NULL);
1611
1612    if (serial_hds[0]) {
1613        serial_mm_init(address_space_mem, MP_UART1_BASE, 2, pic[MP_UART1_IRQ],
1614                       1825000, serial_hds[0], DEVICE_NATIVE_ENDIAN);
1615    }
1616    if (serial_hds[1]) {
1617        serial_mm_init(address_space_mem, MP_UART2_BASE, 2, pic[MP_UART2_IRQ],
1618                       1825000, serial_hds[1], DEVICE_NATIVE_ENDIAN);
1619    }
1620
1621    /* Register flash */
1622    dinfo = drive_get(IF_PFLASH, 0, 0);
1623    if (dinfo) {
1624        BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
1625
1626        flash_size = blk_getlength(blk);
1627        if (flash_size != 8*1024*1024 && flash_size != 16*1024*1024 &&
1628            flash_size != 32*1024*1024) {
1629            fprintf(stderr, "Invalid flash image size\n");
1630            exit(1);
1631        }
1632
1633        /*
1634         * The original U-Boot accesses the flash at 0xFE000000 instead of
1635         * 0xFF800000 (if there is 8 MB flash). So remap flash access if the
1636         * image is smaller than 32 MB.
1637         */
1638#ifdef TARGET_WORDS_BIGENDIAN
1639        pflash_cfi02_register(0x100000000ULL-MP_FLASH_SIZE_MAX, NULL,
1640                              "musicpal.flash", flash_size,
1641                              blk, 0x10000, (flash_size + 0xffff) >> 16,
1642                              MP_FLASH_SIZE_MAX / flash_size,
1643                              2, 0x00BF, 0x236D, 0x0000, 0x0000,
1644                              0x5555, 0x2AAA, 1);
1645#else
1646        pflash_cfi02_register(0x100000000ULL-MP_FLASH_SIZE_MAX, NULL,
1647                              "musicpal.flash", flash_size,
1648                              blk, 0x10000, (flash_size + 0xffff) >> 16,
1649                              MP_FLASH_SIZE_MAX / flash_size,
1650                              2, 0x00BF, 0x236D, 0x0000, 0x0000,
1651                              0x5555, 0x2AAA, 0);
1652#endif
1653
1654    }
1655    sysbus_create_simple(TYPE_MV88W8618_FLASHCFG, MP_FLASHCFG_BASE, NULL);
1656
1657    qemu_check_nic_model(&nd_table[0], "mv88w8618");
1658    dev = qdev_create(NULL, TYPE_MV88W8618_ETH);
1659    qdev_set_nic_properties(dev, &nd_table[0]);
1660    qdev_init_nofail(dev);
1661    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, MP_ETH_BASE);
1662    sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[MP_ETH_IRQ]);
1663
1664    sysbus_create_simple("mv88w8618_wlan", MP_WLAN_BASE, NULL);
1665
1666    sysbus_create_simple(TYPE_MUSICPAL_MISC, MP_MISC_BASE, NULL);
1667
1668    dev = sysbus_create_simple(TYPE_MUSICPAL_GPIO, MP_GPIO_BASE,
1669                               pic[MP_GPIO_IRQ]);
1670    i2c_dev = sysbus_create_simple("gpio_i2c", -1, NULL);
1671    i2c = (I2CBus *)qdev_get_child_bus(i2c_dev, "i2c");
1672
1673    lcd_dev = sysbus_create_simple(TYPE_MUSICPAL_LCD, MP_LCD_BASE, NULL);
1674    key_dev = sysbus_create_simple(TYPE_MUSICPAL_KEY, -1, NULL);
1675
1676    /* I2C read data */
1677    qdev_connect_gpio_out(i2c_dev, 0,
1678                          qdev_get_gpio_in(dev, MP_GPIO_I2C_DATA_BIT));
1679    /* I2C data */
1680    qdev_connect_gpio_out(dev, 3, qdev_get_gpio_in(i2c_dev, 0));
1681    /* I2C clock */
1682    qdev_connect_gpio_out(dev, 4, qdev_get_gpio_in(i2c_dev, 1));
1683
1684    for (i = 0; i < 3; i++) {
1685        qdev_connect_gpio_out(dev, i, qdev_get_gpio_in(lcd_dev, i));
1686    }
1687    for (i = 0; i < 4; i++) {
1688        qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i + 8));
1689    }
1690    for (i = 4; i < 8; i++) {
1691        qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i + 15));
1692    }
1693
1694    wm8750_dev = i2c_create_slave(i2c, "wm8750", MP_WM_ADDR);
1695    dev = qdev_create(NULL, "mv88w8618_audio");
1696    s = SYS_BUS_DEVICE(dev);
1697    qdev_prop_set_ptr(dev, "wm8750", wm8750_dev);
1698    qdev_init_nofail(dev);
1699    sysbus_mmio_map(s, 0, MP_AUDIO_BASE);
1700    sysbus_connect_irq(s, 0, pic[MP_AUDIO_IRQ]);
1701
1702    musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE;
1703    musicpal_binfo.kernel_filename = kernel_filename;
1704    musicpal_binfo.kernel_cmdline = kernel_cmdline;
1705    musicpal_binfo.initrd_filename = initrd_filename;
1706    arm_load_kernel(cpu, &musicpal_binfo);
1707}
1708
1709static void musicpal_machine_init(MachineClass *mc)
1710{
1711    mc->desc = "Marvell 88w8618 / MusicPal (ARM926EJ-S)";
1712    mc->init = musicpal_init;
1713    mc->ignore_memory_transaction_failures = true;
1714    mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
1715}
1716
1717DEFINE_MACHINE("musicpal", musicpal_machine_init)
1718
1719static void mv88w8618_wlan_class_init(ObjectClass *klass, void *data)
1720{
1721    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
1722
1723    sdc->init = mv88w8618_wlan_init;
1724}
1725
1726static const TypeInfo mv88w8618_wlan_info = {
1727    .name          = "mv88w8618_wlan",
1728    .parent        = TYPE_SYS_BUS_DEVICE,
1729    .instance_size = sizeof(SysBusDevice),
1730    .class_init    = mv88w8618_wlan_class_init,
1731};
1732
1733static void musicpal_register_types(void)
1734{
1735    type_register_static(&mv88w8618_pic_info);
1736    type_register_static(&mv88w8618_pit_info);
1737    type_register_static(&mv88w8618_flashcfg_info);
1738    type_register_static(&mv88w8618_eth_info);
1739    type_register_static(&mv88w8618_wlan_info);
1740    type_register_static(&musicpal_lcd_info);
1741    type_register_static(&musicpal_gpio_info);
1742    type_register_static(&musicpal_key_info);
1743    type_register_static(&musicpal_misc_info);
1744}
1745
1746type_init(musicpal_register_types)
1747