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 "hw/sysbus.h"
  13#include "hw/arm/arm.h"
  14#include "hw/devices.h"
  15#include "net/net.h"
  16#include "sysemu/sysemu.h"
  17#include "hw/boards.h"
  18#include "hw/char/serial.h"
  19#include "qemu/timer.h"
  20#include "hw/ptimer.h"
  21#include "block/block.h"
  22#include "hw/block/flash.h"
  23#include "ui/console.h"
  24#include "hw/i2c/i2c.h"
  25#include "sysemu/blockdev.h"
  26#include "exec/address-spaces.h"
  27#include "ui/pixel_ops.h"
  28
  29#define MP_MISC_BASE            0x80002000
  30#define MP_MISC_SIZE            0x00001000
  31
  32#define MP_ETH_BASE             0x80008000
  33#define MP_ETH_SIZE             0x00001000
  34
  35#define MP_WLAN_BASE            0x8000C000
  36#define MP_WLAN_SIZE            0x00000800
  37
  38#define MP_UART1_BASE           0x8000C840
  39#define MP_UART2_BASE           0x8000C940
  40
  41#define MP_GPIO_BASE            0x8000D000
  42#define MP_GPIO_SIZE            0x00001000
  43
  44#define MP_FLASHCFG_BASE        0x90006000
  45#define MP_FLASHCFG_SIZE        0x00001000
  46
  47#define MP_AUDIO_BASE           0x90007000
  48
  49#define MP_PIC_BASE             0x90008000
  50#define MP_PIC_SIZE             0x00001000
  51
  52#define MP_PIT_BASE             0x90009000
  53#define MP_PIT_SIZE             0x00001000
  54
  55#define MP_LCD_BASE             0x9000c000
  56#define MP_LCD_SIZE             0x00001000
  57
  58#define MP_SRAM_BASE            0xC0000000
  59#define MP_SRAM_SIZE            0x00020000
  60
  61#define MP_RAM_DEFAULT_SIZE     32*1024*1024
  62#define MP_FLASH_SIZE_MAX       32*1024*1024
  63
  64#define MP_TIMER1_IRQ           4
  65#define MP_TIMER2_IRQ           5
  66#define MP_TIMER3_IRQ           6
  67#define MP_TIMER4_IRQ           7
  68#define MP_EHCI_IRQ             8
  69#define MP_ETH_IRQ              9
  70#define MP_UART1_IRQ            11
  71#define MP_UART2_IRQ            11
  72#define MP_GPIO_IRQ             12
  73#define MP_RTC_IRQ              28
  74#define MP_AUDIO_IRQ            30
  75
  76/* Wolfson 8750 I2C address */
  77#define MP_WM_ADDR              0x1A
  78
  79/* Ethernet register offsets */
  80#define MP_ETH_SMIR             0x010
  81#define MP_ETH_PCXR             0x408
  82#define MP_ETH_SDCMR            0x448
  83#define MP_ETH_ICR              0x450
  84#define MP_ETH_IMR              0x458
  85#define MP_ETH_FRDP0            0x480
  86#define MP_ETH_FRDP1            0x484
  87#define MP_ETH_FRDP2            0x488
  88#define MP_ETH_FRDP3            0x48C
  89#define MP_ETH_CRDP0            0x4A0
  90#define MP_ETH_CRDP1            0x4A4
  91#define MP_ETH_CRDP2            0x4A8
  92#define MP_ETH_CRDP3            0x4AC
  93#define MP_ETH_CTDP0            0x4E0
  94#define MP_ETH_CTDP1            0x4E4
  95#define MP_ETH_CTDP2            0x4E8
  96#define MP_ETH_CTDP3            0x4EC
  97
  98/* MII PHY access */
  99#define MP_ETH_SMIR_DATA        0x0000FFFF
 100#define MP_ETH_SMIR_ADDR        0x03FF0000
 101#define MP_ETH_SMIR_OPCODE      (1 << 26) /* Read value */
 102#define MP_ETH_SMIR_RDVALID     (1 << 27)
 103
 104/* PHY registers */
 105#define MP_ETH_PHY1_BMSR        0x00210000
 106#define MP_ETH_PHY1_PHYSID1     0x00410000
 107#define MP_ETH_PHY1_PHYSID2     0x00610000
 108
 109#define MP_PHY_BMSR_LINK        0x0004
 110#define MP_PHY_BMSR_AUTONEG     0x0008
 111
 112#define MP_PHY_88E3015          0x01410E20
 113
 114/* TX descriptor status */
 115#define MP_ETH_TX_OWN           (1 << 31)
 116
 117/* RX descriptor status */
 118#define MP_ETH_RX_OWN           (1 << 31)
 119
 120/* Interrupt cause/mask bits */
 121#define MP_ETH_IRQ_RX_BIT       0
 122#define MP_ETH_IRQ_RX           (1 << MP_ETH_IRQ_RX_BIT)
 123#define MP_ETH_IRQ_TXHI_BIT     2
 124#define MP_ETH_IRQ_TXLO_BIT     3
 125
 126/* Port config bits */
 127#define MP_ETH_PCXR_2BSM_BIT    28 /* 2-byte incoming suffix */
 128
 129/* SDMA command bits */
 130#define MP_ETH_CMD_TXHI         (1 << 23)
 131#define MP_ETH_CMD_TXLO         (1 << 22)
 132
 133typedef struct mv88w8618_tx_desc {
 134    uint32_t cmdstat;
 135    uint16_t res;
 136    uint16_t bytes;
 137    uint32_t buffer;
 138    uint32_t next;
 139} mv88w8618_tx_desc;
 140
 141typedef struct mv88w8618_rx_desc {
 142    uint32_t cmdstat;
 143    uint16_t bytes;
 144    uint16_t buffer_size;
 145    uint32_t buffer;
 146    uint32_t next;
 147} mv88w8618_rx_desc;
 148
 149typedef struct mv88w8618_eth_state {
 150    SysBusDevice busdev;
 151    MemoryRegion iomem;
 152    qemu_irq irq;
 153    uint32_t smir;
 154    uint32_t icr;
 155    uint32_t imr;
 156    int mmio_index;
 157    uint32_t vlan_header;
 158    uint32_t tx_queue[2];
 159    uint32_t rx_queue[4];
 160    uint32_t frx_queue[4];
 161    uint32_t cur_rx[4];
 162    NICState *nic;
 163    NICConf conf;
 164} mv88w8618_eth_state;
 165
 166static void eth_rx_desc_put(uint32_t addr, mv88w8618_rx_desc *desc)
 167{
 168    cpu_to_le32s(&desc->cmdstat);
 169    cpu_to_le16s(&desc->bytes);
 170    cpu_to_le16s(&desc->buffer_size);
 171    cpu_to_le32s(&desc->buffer);
 172    cpu_to_le32s(&desc->next);
 173    cpu_physical_memory_write(addr, desc, sizeof(*desc));
 174}
 175
 176static void eth_rx_desc_get(uint32_t addr, mv88w8618_rx_desc *desc)
 177{
 178    cpu_physical_memory_read(addr, desc, sizeof(*desc));
 179    le32_to_cpus(&desc->cmdstat);
 180    le16_to_cpus(&desc->bytes);
 181    le16_to_cpus(&desc->buffer_size);
 182    le32_to_cpus(&desc->buffer);
 183    le32_to_cpus(&desc->next);
 184}
 185
 186static int eth_can_receive(NetClientState *nc)
 187{
 188    return 1;
 189}
 190
 191static ssize_t eth_receive(NetClientState *nc, const uint8_t *buf, size_t size)
 192{
 193    mv88w8618_eth_state *s = qemu_get_nic_opaque(nc);
 194    uint32_t desc_addr;
 195    mv88w8618_rx_desc desc;
 196    int i;
 197
 198    for (i = 0; i < 4; i++) {
 199        desc_addr = s->cur_rx[i];
 200        if (!desc_addr) {
 201            continue;
 202        }
 203        do {
 204            eth_rx_desc_get(desc_addr, &desc);
 205            if ((desc.cmdstat & MP_ETH_RX_OWN) && desc.buffer_size >= size) {
 206                cpu_physical_memory_write(desc.buffer + s->vlan_header,
 207                                          buf, size);
 208                desc.bytes = size + s->vlan_header;
 209                desc.cmdstat &= ~MP_ETH_RX_OWN;
 210                s->cur_rx[i] = desc.next;
 211
 212                s->icr |= MP_ETH_IRQ_RX;
 213                if (s->icr & s->imr) {
 214                    qemu_irq_raise(s->irq);
 215                }
 216                eth_rx_desc_put(desc_addr, &desc);
 217                return size;
 218            }
 219            desc_addr = desc.next;
 220        } while (desc_addr != s->rx_queue[i]);
 221    }
 222    return size;
 223}
 224
 225static void eth_tx_desc_put(uint32_t addr, mv88w8618_tx_desc *desc)
 226{
 227    cpu_to_le32s(&desc->cmdstat);
 228    cpu_to_le16s(&desc->res);
 229    cpu_to_le16s(&desc->bytes);
 230    cpu_to_le32s(&desc->buffer);
 231    cpu_to_le32s(&desc->next);
 232    cpu_physical_memory_write(addr, desc, sizeof(*desc));
 233}
 234
 235static void eth_tx_desc_get(uint32_t addr, mv88w8618_tx_desc *desc)
 236{
 237    cpu_physical_memory_read(addr, desc, sizeof(*desc));
 238    le32_to_cpus(&desc->cmdstat);
 239    le16_to_cpus(&desc->res);
 240    le16_to_cpus(&desc->bytes);
 241    le32_to_cpus(&desc->buffer);
 242    le32_to_cpus(&desc->next);
 243}
 244
 245static void eth_send(mv88w8618_eth_state *s, int queue_index)
 246{
 247    uint32_t desc_addr = s->tx_queue[queue_index];
 248    mv88w8618_tx_desc desc;
 249    uint32_t next_desc;
 250    uint8_t buf[2048];
 251    int len;
 252
 253    do {
 254        eth_tx_desc_get(desc_addr, &desc);
 255        next_desc = desc.next;
 256        if (desc.cmdstat & MP_ETH_TX_OWN) {
 257            len = desc.bytes;
 258            if (len < 2048) {
 259                cpu_physical_memory_read(desc.buffer, buf, len);
 260                qemu_send_packet(qemu_get_queue(s->nic), buf, len);
 261            }
 262            desc.cmdstat &= ~MP_ETH_TX_OWN;
 263            s->icr |= 1 << (MP_ETH_IRQ_TXLO_BIT - queue_index);
 264            eth_tx_desc_put(desc_addr, &desc);
 265        }
 266        desc_addr = next_desc;
 267    } while (desc_addr != s->tx_queue[queue_index]);
 268}
 269
 270static uint64_t mv88w8618_eth_read(void *opaque, hwaddr offset,
 271                                   unsigned size)
 272{
 273    mv88w8618_eth_state *s = opaque;
 274
 275    switch (offset) {
 276    case MP_ETH_SMIR:
 277        if (s->smir & MP_ETH_SMIR_OPCODE) {
 278            switch (s->smir & MP_ETH_SMIR_ADDR) {
 279            case MP_ETH_PHY1_BMSR:
 280                return MP_PHY_BMSR_LINK | MP_PHY_BMSR_AUTONEG |
 281                       MP_ETH_SMIR_RDVALID;
 282            case MP_ETH_PHY1_PHYSID1:
 283                return (MP_PHY_88E3015 >> 16) | MP_ETH_SMIR_RDVALID;
 284            case MP_ETH_PHY1_PHYSID2:
 285                return (MP_PHY_88E3015 & 0xFFFF) | MP_ETH_SMIR_RDVALID;
 286            default:
 287                return MP_ETH_SMIR_RDVALID;
 288            }
 289        }
 290        return 0;
 291
 292    case MP_ETH_ICR:
 293        return s->icr;
 294
 295    case MP_ETH_IMR:
 296        return s->imr;
 297
 298    case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
 299        return s->frx_queue[(offset - MP_ETH_FRDP0)/4];
 300
 301    case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
 302        return s->rx_queue[(offset - MP_ETH_CRDP0)/4];
 303
 304    case MP_ETH_CTDP0 ... MP_ETH_CTDP3:
 305        return s->tx_queue[(offset - MP_ETH_CTDP0)/4];
 306
 307    default:
 308        return 0;
 309    }
 310}
 311
 312static void mv88w8618_eth_write(void *opaque, hwaddr offset,
 313                                uint64_t value, unsigned size)
 314{
 315    mv88w8618_eth_state *s = opaque;
 316
 317    switch (offset) {
 318    case MP_ETH_SMIR:
 319        s->smir = value;
 320        break;
 321
 322    case MP_ETH_PCXR:
 323        s->vlan_header = ((value >> MP_ETH_PCXR_2BSM_BIT) & 1) * 2;
 324        break;
 325
 326    case MP_ETH_SDCMR:
 327        if (value & MP_ETH_CMD_TXHI) {
 328            eth_send(s, 1);
 329        }
 330        if (value & MP_ETH_CMD_TXLO) {
 331            eth_send(s, 0);
 332        }
 333        if (value & (MP_ETH_CMD_TXHI | MP_ETH_CMD_TXLO) && s->icr & s->imr) {
 334            qemu_irq_raise(s->irq);
 335        }
 336        break;
 337
 338    case MP_ETH_ICR:
 339        s->icr &= value;
 340        break;
 341
 342    case MP_ETH_IMR:
 343        s->imr = value;
 344        if (s->icr & s->imr) {
 345            qemu_irq_raise(s->irq);
 346        }
 347        break;
 348
 349    case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
 350        s->frx_queue[(offset - MP_ETH_FRDP0)/4] = value;
 351        break;
 352
 353    case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
 354        s->rx_queue[(offset - MP_ETH_CRDP0)/4] =
 355            s->cur_rx[(offset - MP_ETH_CRDP0)/4] = value;
 356        break;
 357
 358    case MP_ETH_CTDP0 ... MP_ETH_CTDP3:
 359        s->tx_queue[(offset - MP_ETH_CTDP0)/4] = value;
 360        break;
 361    }
 362}
 363
 364static const MemoryRegionOps mv88w8618_eth_ops = {
 365    .read = mv88w8618_eth_read,
 366    .write = mv88w8618_eth_write,
 367    .endianness = DEVICE_NATIVE_ENDIAN,
 368};
 369
 370static void eth_cleanup(NetClientState *nc)
 371{
 372    mv88w8618_eth_state *s = qemu_get_nic_opaque(nc);
 373
 374    s->nic = NULL;
 375}
 376
 377static NetClientInfo net_mv88w8618_info = {
 378    .type = NET_CLIENT_OPTIONS_KIND_NIC,
 379    .size = sizeof(NICState),
 380    .can_receive = eth_can_receive,
 381    .receive = eth_receive,
 382    .cleanup = eth_cleanup,
 383};
 384
 385static int mv88w8618_eth_init(SysBusDevice *dev)
 386{
 387    mv88w8618_eth_state *s = FROM_SYSBUS(mv88w8618_eth_state, dev);
 388
 389    sysbus_init_irq(dev, &s->irq);
 390    s->nic = qemu_new_nic(&net_mv88w8618_info, &s->conf,
 391                          object_get_typename(OBJECT(dev)), dev->qdev.id, s);
 392    memory_region_init_io(&s->iomem, &mv88w8618_eth_ops, s, "mv88w8618-eth",
 393                          MP_ETH_SIZE);
 394    sysbus_init_mmio(dev, &s->iomem);
 395    return 0;
 396}
 397
 398static const VMStateDescription mv88w8618_eth_vmsd = {
 399    .name = "mv88w8618_eth",
 400    .version_id = 1,
 401    .minimum_version_id = 1,
 402    .minimum_version_id_old = 1,
 403    .fields = (VMStateField[]) {
 404        VMSTATE_UINT32(smir, mv88w8618_eth_state),
 405        VMSTATE_UINT32(icr, mv88w8618_eth_state),
 406        VMSTATE_UINT32(imr, mv88w8618_eth_state),
 407        VMSTATE_UINT32(vlan_header, mv88w8618_eth_state),
 408        VMSTATE_UINT32_ARRAY(tx_queue, mv88w8618_eth_state, 2),
 409        VMSTATE_UINT32_ARRAY(rx_queue, mv88w8618_eth_state, 4),
 410        VMSTATE_UINT32_ARRAY(frx_queue, mv88w8618_eth_state, 4),
 411        VMSTATE_UINT32_ARRAY(cur_rx, mv88w8618_eth_state, 4),
 412        VMSTATE_END_OF_LIST()
 413    }
 414};
 415
 416static Property mv88w8618_eth_properties[] = {
 417    DEFINE_NIC_PROPERTIES(mv88w8618_eth_state, conf),
 418    DEFINE_PROP_END_OF_LIST(),
 419};
 420
 421static void mv88w8618_eth_class_init(ObjectClass *klass, void *data)
 422{
 423    DeviceClass *dc = DEVICE_CLASS(klass);
 424    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 425
 426    k->init = mv88w8618_eth_init;
 427    dc->vmsd = &mv88w8618_eth_vmsd;
 428    dc->props = mv88w8618_eth_properties;
 429}
 430
 431static const TypeInfo mv88w8618_eth_info = {
 432    .name          = "mv88w8618_eth",
 433    .parent        = TYPE_SYS_BUS_DEVICE,
 434    .instance_size = sizeof(mv88w8618_eth_state),
 435    .class_init    = mv88w8618_eth_class_init,
 436};
 437
 438/* LCD register offsets */
 439#define MP_LCD_IRQCTRL          0x180
 440#define MP_LCD_IRQSTAT          0x184
 441#define MP_LCD_SPICTRL          0x1ac
 442#define MP_LCD_INST             0x1bc
 443#define MP_LCD_DATA             0x1c0
 444
 445/* Mode magics */
 446#define MP_LCD_SPI_DATA         0x00100011
 447#define MP_LCD_SPI_CMD          0x00104011
 448#define MP_LCD_SPI_INVALID      0x00000000
 449
 450/* Commmands */
 451#define MP_LCD_INST_SETPAGE0    0xB0
 452/* ... */
 453#define MP_LCD_INST_SETPAGE7    0xB7
 454
 455#define MP_LCD_TEXTCOLOR        0xe0e0ff /* RRGGBB */
 456
 457typedef struct musicpal_lcd_state {
 458    SysBusDevice busdev;
 459    MemoryRegion iomem;
 460    uint32_t brightness;
 461    uint32_t mode;
 462    uint32_t irqctrl;
 463    uint32_t page;
 464    uint32_t page_off;
 465    QemuConsole *con;
 466    uint8_t video_ram[128*64/8];
 467} musicpal_lcd_state;
 468
 469static uint8_t scale_lcd_color(musicpal_lcd_state *s, uint8_t col)
 470{
 471    switch (s->brightness) {
 472    case 7:
 473        return col;
 474    case 0:
 475        return 0;
 476    default:
 477        return (col * s->brightness) / 7;
 478    }
 479}
 480
 481#define SET_LCD_PIXEL(depth, type) \
 482static inline void glue(set_lcd_pixel, depth) \
 483        (musicpal_lcd_state *s, int x, int y, type col) \
 484{ \
 485    int dx, dy; \
 486    DisplaySurface *surface = qemu_console_surface(s->con); \
 487    type *pixel = &((type *) surface_data(surface))[(y * 128 * 3 + x) * 3]; \
 488\
 489    for (dy = 0; dy < 3; dy++, pixel += 127 * 3) \
 490        for (dx = 0; dx < 3; dx++, pixel++) \
 491            *pixel = col; \
 492}
 493SET_LCD_PIXEL(8, uint8_t)
 494SET_LCD_PIXEL(16, uint16_t)
 495SET_LCD_PIXEL(32, uint32_t)
 496
 497static void lcd_refresh(void *opaque)
 498{
 499    musicpal_lcd_state *s = opaque;
 500    DisplaySurface *surface = qemu_console_surface(s->con);
 501    int x, y, col;
 502
 503    switch (surface_bits_per_pixel(surface)) {
 504    case 0:
 505        return;
 506#define LCD_REFRESH(depth, func) \
 507    case depth: \
 508        col = func(scale_lcd_color(s, (MP_LCD_TEXTCOLOR >> 16) & 0xff), \
 509                   scale_lcd_color(s, (MP_LCD_TEXTCOLOR >> 8) & 0xff), \
 510                   scale_lcd_color(s, MP_LCD_TEXTCOLOR & 0xff)); \
 511        for (x = 0; x < 128; x++) { \
 512            for (y = 0; y < 64; y++) { \
 513                if (s->video_ram[x + (y/8)*128] & (1 << (y % 8))) { \
 514                    glue(set_lcd_pixel, depth)(s, x, y, col); \
 515                } else { \
 516                    glue(set_lcd_pixel, depth)(s, x, y, 0); \
 517                } \
 518            } \
 519        } \
 520        break;
 521    LCD_REFRESH(8, rgb_to_pixel8)
 522    LCD_REFRESH(16, rgb_to_pixel16)
 523    LCD_REFRESH(32, (is_surface_bgr(surface) ?
 524                     rgb_to_pixel32bgr : rgb_to_pixel32))
 525    default:
 526        hw_error("unsupported colour depth %i\n",
 527                 surface_bits_per_pixel(surface));
 528    }
 529
 530    dpy_gfx_update(s->con, 0, 0, 128*3, 64*3);
 531}
 532
 533static void lcd_invalidate(void *opaque)
 534{
 535}
 536
 537static void musicpal_lcd_gpio_brigthness_in(void *opaque, int irq, int level)
 538{
 539    musicpal_lcd_state *s = opaque;
 540    s->brightness &= ~(1 << irq);
 541    s->brightness |= level << irq;
 542}
 543
 544static uint64_t musicpal_lcd_read(void *opaque, hwaddr offset,
 545                                  unsigned size)
 546{
 547    musicpal_lcd_state *s = opaque;
 548
 549    switch (offset) {
 550    case MP_LCD_IRQCTRL:
 551        return s->irqctrl;
 552
 553    default:
 554        return 0;
 555    }
 556}
 557
 558static void musicpal_lcd_write(void *opaque, hwaddr offset,
 559                               uint64_t value, unsigned size)
 560{
 561    musicpal_lcd_state *s = opaque;
 562
 563    switch (offset) {
 564    case MP_LCD_IRQCTRL:
 565        s->irqctrl = value;
 566        break;
 567
 568    case MP_LCD_SPICTRL:
 569        if (value == MP_LCD_SPI_DATA || value == MP_LCD_SPI_CMD) {
 570            s->mode = value;
 571        } else {
 572            s->mode = MP_LCD_SPI_INVALID;
 573        }
 574        break;
 575
 576    case MP_LCD_INST:
 577        if (value >= MP_LCD_INST_SETPAGE0 && value <= MP_LCD_INST_SETPAGE7) {
 578            s->page = value - MP_LCD_INST_SETPAGE0;
 579            s->page_off = 0;
 580        }
 581        break;
 582
 583    case MP_LCD_DATA:
 584        if (s->mode == MP_LCD_SPI_CMD) {
 585            if (value >= MP_LCD_INST_SETPAGE0 &&
 586                value <= MP_LCD_INST_SETPAGE7) {
 587                s->page = value - MP_LCD_INST_SETPAGE0;
 588                s->page_off = 0;
 589            }
 590        } else if (s->mode == MP_LCD_SPI_DATA) {
 591            s->video_ram[s->page*128 + s->page_off] = value;
 592            s->page_off = (s->page_off + 1) & 127;
 593        }
 594        break;
 595    }
 596}
 597
 598static const MemoryRegionOps musicpal_lcd_ops = {
 599    .read = musicpal_lcd_read,
 600    .write = musicpal_lcd_write,
 601    .endianness = DEVICE_NATIVE_ENDIAN,
 602};
 603
 604static const GraphicHwOps musicpal_gfx_ops = {
 605    .invalidate  = lcd_invalidate,
 606    .gfx_update  = lcd_refresh,
 607};
 608
 609static int musicpal_lcd_init(SysBusDevice *dev)
 610{
 611    musicpal_lcd_state *s = FROM_SYSBUS(musicpal_lcd_state, dev);
 612
 613    s->brightness = 7;
 614
 615    memory_region_init_io(&s->iomem, &musicpal_lcd_ops, s,
 616                          "musicpal-lcd", MP_LCD_SIZE);
 617    sysbus_init_mmio(dev, &s->iomem);
 618
 619    s->con = graphic_console_init(DEVICE(dev), &musicpal_gfx_ops, s);
 620    qemu_console_resize(s->con, 128*3, 64*3);
 621
 622    qdev_init_gpio_in(&dev->qdev, musicpal_lcd_gpio_brigthness_in, 3);
 623
 624    return 0;
 625}
 626
 627static const VMStateDescription musicpal_lcd_vmsd = {
 628    .name = "musicpal_lcd",
 629    .version_id = 1,
 630    .minimum_version_id = 1,
 631    .minimum_version_id_old = 1,
 632    .fields = (VMStateField[]) {
 633        VMSTATE_UINT32(brightness, musicpal_lcd_state),
 634        VMSTATE_UINT32(mode, musicpal_lcd_state),
 635        VMSTATE_UINT32(irqctrl, musicpal_lcd_state),
 636        VMSTATE_UINT32(page, musicpal_lcd_state),
 637        VMSTATE_UINT32(page_off, musicpal_lcd_state),
 638        VMSTATE_BUFFER(video_ram, musicpal_lcd_state),
 639        VMSTATE_END_OF_LIST()
 640    }
 641};
 642
 643static void musicpal_lcd_class_init(ObjectClass *klass, void *data)
 644{
 645    DeviceClass *dc = DEVICE_CLASS(klass);
 646    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 647
 648    k->init = musicpal_lcd_init;
 649    dc->vmsd = &musicpal_lcd_vmsd;
 650}
 651
 652static const TypeInfo musicpal_lcd_info = {
 653    .name          = "musicpal_lcd",
 654    .parent        = TYPE_SYS_BUS_DEVICE,
 655    .instance_size = sizeof(musicpal_lcd_state),
 656    .class_init    = musicpal_lcd_class_init,
 657};
 658
 659/* PIC register offsets */
 660#define MP_PIC_STATUS           0x00
 661#define MP_PIC_ENABLE_SET       0x08
 662#define MP_PIC_ENABLE_CLR       0x0C
 663
 664typedef struct mv88w8618_pic_state
 665{
 666    SysBusDevice busdev;
 667    MemoryRegion iomem;
 668    uint32_t level;
 669    uint32_t enabled;
 670    qemu_irq parent_irq;
 671} mv88w8618_pic_state;
 672
 673static void mv88w8618_pic_update(mv88w8618_pic_state *s)
 674{
 675    qemu_set_irq(s->parent_irq, (s->level & s->enabled));
 676}
 677
 678static void mv88w8618_pic_set_irq(void *opaque, int irq, int level)
 679{
 680    mv88w8618_pic_state *s = opaque;
 681
 682    if (level) {
 683        s->level |= 1 << irq;
 684    } else {
 685        s->level &= ~(1 << irq);
 686    }
 687    mv88w8618_pic_update(s);
 688}
 689
 690static uint64_t mv88w8618_pic_read(void *opaque, hwaddr offset,
 691                                   unsigned size)
 692{
 693    mv88w8618_pic_state *s = opaque;
 694
 695    switch (offset) {
 696    case MP_PIC_STATUS:
 697        return s->level & s->enabled;
 698
 699    default:
 700        return 0;
 701    }
 702}
 703
 704static void mv88w8618_pic_write(void *opaque, hwaddr offset,
 705                                uint64_t value, unsigned size)
 706{
 707    mv88w8618_pic_state *s = opaque;
 708
 709    switch (offset) {
 710    case MP_PIC_ENABLE_SET:
 711        s->enabled |= value;
 712        break;
 713
 714    case MP_PIC_ENABLE_CLR:
 715        s->enabled &= ~value;
 716        s->level &= ~value;
 717        break;
 718    }
 719    mv88w8618_pic_update(s);
 720}
 721
 722static void mv88w8618_pic_reset(DeviceState *d)
 723{
 724    mv88w8618_pic_state *s = FROM_SYSBUS(mv88w8618_pic_state,
 725                                         SYS_BUS_DEVICE(d));
 726
 727    s->level = 0;
 728    s->enabled = 0;
 729}
 730
 731static const MemoryRegionOps mv88w8618_pic_ops = {
 732    .read = mv88w8618_pic_read,
 733    .write = mv88w8618_pic_write,
 734    .endianness = DEVICE_NATIVE_ENDIAN,
 735};
 736
 737static int mv88w8618_pic_init(SysBusDevice *dev)
 738{
 739    mv88w8618_pic_state *s = FROM_SYSBUS(mv88w8618_pic_state, dev);
 740
 741    qdev_init_gpio_in(&dev->qdev, mv88w8618_pic_set_irq, 32);
 742    sysbus_init_irq(dev, &s->parent_irq);
 743    memory_region_init_io(&s->iomem, &mv88w8618_pic_ops, s,
 744                          "musicpal-pic", MP_PIC_SIZE);
 745    sysbus_init_mmio(dev, &s->iomem);
 746    return 0;
 747}
 748
 749static const VMStateDescription mv88w8618_pic_vmsd = {
 750    .name = "mv88w8618_pic",
 751    .version_id = 1,
 752    .minimum_version_id = 1,
 753    .minimum_version_id_old = 1,
 754    .fields = (VMStateField[]) {
 755        VMSTATE_UINT32(level, mv88w8618_pic_state),
 756        VMSTATE_UINT32(enabled, mv88w8618_pic_state),
 757        VMSTATE_END_OF_LIST()
 758    }
 759};
 760
 761static void mv88w8618_pic_class_init(ObjectClass *klass, void *data)
 762{
 763    DeviceClass *dc = DEVICE_CLASS(klass);
 764    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 765
 766    k->init = mv88w8618_pic_init;
 767    dc->reset = mv88w8618_pic_reset;
 768    dc->vmsd = &mv88w8618_pic_vmsd;
 769}
 770
 771static const TypeInfo mv88w8618_pic_info = {
 772    .name          = "mv88w8618_pic",
 773    .parent        = TYPE_SYS_BUS_DEVICE,
 774    .instance_size = sizeof(mv88w8618_pic_state),
 775    .class_init    = mv88w8618_pic_class_init,
 776};
 777
 778/* PIT register offsets */
 779#define MP_PIT_TIMER1_LENGTH    0x00
 780/* ... */
 781#define MP_PIT_TIMER4_LENGTH    0x0C
 782#define MP_PIT_CONTROL          0x10
 783#define MP_PIT_TIMER1_VALUE     0x14
 784/* ... */
 785#define MP_PIT_TIMER4_VALUE     0x20
 786#define MP_BOARD_RESET          0x34
 787
 788/* Magic board reset value (probably some watchdog behind it) */
 789#define MP_BOARD_RESET_MAGIC    0x10000
 790
 791typedef struct mv88w8618_timer_state {
 792    ptimer_state *ptimer;
 793    uint32_t limit;
 794    int freq;
 795    qemu_irq irq;
 796} mv88w8618_timer_state;
 797
 798typedef struct mv88w8618_pit_state {
 799    SysBusDevice busdev;
 800    MemoryRegion iomem;
 801    mv88w8618_timer_state timer[4];
 802} mv88w8618_pit_state;
 803
 804static void mv88w8618_timer_tick(void *opaque)
 805{
 806    mv88w8618_timer_state *s = opaque;
 807
 808    qemu_irq_raise(s->irq);
 809}
 810
 811static void mv88w8618_timer_init(SysBusDevice *dev, mv88w8618_timer_state *s,
 812                                 uint32_t freq)
 813{
 814    QEMUBH *bh;
 815
 816    sysbus_init_irq(dev, &s->irq);
 817    s->freq = freq;
 818
 819    bh = qemu_bh_new(mv88w8618_timer_tick, s);
 820    s->ptimer = ptimer_init(bh);
 821}
 822
 823static uint64_t mv88w8618_pit_read(void *opaque, hwaddr offset,
 824                                   unsigned size)
 825{
 826    mv88w8618_pit_state *s = opaque;
 827    mv88w8618_timer_state *t;
 828
 829    switch (offset) {
 830    case MP_PIT_TIMER1_VALUE ... MP_PIT_TIMER4_VALUE:
 831        t = &s->timer[(offset-MP_PIT_TIMER1_VALUE) >> 2];
 832        return ptimer_get_count(t->ptimer);
 833
 834    default:
 835        return 0;
 836    }
 837}
 838
 839static void mv88w8618_pit_write(void *opaque, hwaddr offset,
 840                                uint64_t value, unsigned size)
 841{
 842    mv88w8618_pit_state *s = opaque;
 843    mv88w8618_timer_state *t;
 844    int i;
 845
 846    switch (offset) {
 847    case MP_PIT_TIMER1_LENGTH ... MP_PIT_TIMER4_LENGTH:
 848        t = &s->timer[offset >> 2];
 849        t->limit = value;
 850        if (t->limit > 0) {
 851            ptimer_set_limit(t->ptimer, t->limit, 1);
 852        } else {
 853            ptimer_stop(t->ptimer);
 854        }
 855        break;
 856
 857    case MP_PIT_CONTROL:
 858        for (i = 0; i < 4; i++) {
 859            t = &s->timer[i];
 860            if (value & 0xf && t->limit > 0) {
 861                ptimer_set_limit(t->ptimer, t->limit, 0);
 862                ptimer_set_freq(t->ptimer, t->freq);
 863                ptimer_run(t->ptimer, 0);
 864            } else {
 865                ptimer_stop(t->ptimer);
 866            }
 867            value >>= 4;
 868        }
 869        break;
 870
 871    case MP_BOARD_RESET:
 872        if (value == MP_BOARD_RESET_MAGIC) {
 873            qemu_system_reset_request();
 874        }
 875        break;
 876    }
 877}
 878
 879static void mv88w8618_pit_reset(DeviceState *d)
 880{
 881    mv88w8618_pit_state *s = FROM_SYSBUS(mv88w8618_pit_state,
 882                                         SYS_BUS_DEVICE(d));
 883    int i;
 884
 885    for (i = 0; i < 4; i++) {
 886        ptimer_stop(s->timer[i].ptimer);
 887        s->timer[i].limit = 0;
 888    }
 889}
 890
 891static const MemoryRegionOps mv88w8618_pit_ops = {
 892    .read = mv88w8618_pit_read,
 893    .write = mv88w8618_pit_write,
 894    .endianness = DEVICE_NATIVE_ENDIAN,
 895};
 896
 897static int mv88w8618_pit_init(SysBusDevice *dev)
 898{
 899    mv88w8618_pit_state *s = FROM_SYSBUS(mv88w8618_pit_state, dev);
 900    int i;
 901
 902    /* Letting them all run at 1 MHz is likely just a pragmatic
 903     * simplification. */
 904    for (i = 0; i < 4; i++) {
 905        mv88w8618_timer_init(dev, &s->timer[i], 1000000);
 906    }
 907
 908    memory_region_init_io(&s->iomem, &mv88w8618_pit_ops, s,
 909                          "musicpal-pit", MP_PIT_SIZE);
 910    sysbus_init_mmio(dev, &s->iomem);
 911    return 0;
 912}
 913
 914static const VMStateDescription mv88w8618_timer_vmsd = {
 915    .name = "timer",
 916    .version_id = 1,
 917    .minimum_version_id = 1,
 918    .minimum_version_id_old = 1,
 919    .fields = (VMStateField[]) {
 920        VMSTATE_PTIMER(ptimer, mv88w8618_timer_state),
 921        VMSTATE_UINT32(limit, mv88w8618_timer_state),
 922        VMSTATE_END_OF_LIST()
 923    }
 924};
 925
 926static const VMStateDescription mv88w8618_pit_vmsd = {
 927    .name = "mv88w8618_pit",
 928    .version_id = 1,
 929    .minimum_version_id = 1,
 930    .minimum_version_id_old = 1,
 931    .fields = (VMStateField[]) {
 932        VMSTATE_STRUCT_ARRAY(timer, mv88w8618_pit_state, 4, 1,
 933                             mv88w8618_timer_vmsd, mv88w8618_timer_state),
 934        VMSTATE_END_OF_LIST()
 935    }
 936};
 937
 938static void mv88w8618_pit_class_init(ObjectClass *klass, void *data)
 939{
 940    DeviceClass *dc = DEVICE_CLASS(klass);
 941    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 942
 943    k->init = mv88w8618_pit_init;
 944    dc->reset = mv88w8618_pit_reset;
 945    dc->vmsd = &mv88w8618_pit_vmsd;
 946}
 947
 948static const TypeInfo mv88w8618_pit_info = {
 949    .name          = "mv88w8618_pit",
 950    .parent        = TYPE_SYS_BUS_DEVICE,
 951    .instance_size = sizeof(mv88w8618_pit_state),
 952    .class_init    = mv88w8618_pit_class_init,
 953};
 954
 955/* Flash config register offsets */
 956#define MP_FLASHCFG_CFGR0    0x04
 957
 958typedef struct mv88w8618_flashcfg_state {
 959    SysBusDevice busdev;
 960    MemoryRegion iomem;
 961    uint32_t cfgr0;
 962} mv88w8618_flashcfg_state;
 963
 964static uint64_t mv88w8618_flashcfg_read(void *opaque,
 965                                        hwaddr offset,
 966                                        unsigned size)
 967{
 968    mv88w8618_flashcfg_state *s = opaque;
 969
 970    switch (offset) {
 971    case MP_FLASHCFG_CFGR0:
 972        return s->cfgr0;
 973
 974    default:
 975        return 0;
 976    }
 977}
 978
 979static void mv88w8618_flashcfg_write(void *opaque, hwaddr offset,
 980                                     uint64_t value, unsigned size)
 981{
 982    mv88w8618_flashcfg_state *s = opaque;
 983
 984    switch (offset) {
 985    case MP_FLASHCFG_CFGR0:
 986        s->cfgr0 = value;
 987        break;
 988    }
 989}
 990
 991static const MemoryRegionOps mv88w8618_flashcfg_ops = {
 992    .read = mv88w8618_flashcfg_read,
 993    .write = mv88w8618_flashcfg_write,
 994    .endianness = DEVICE_NATIVE_ENDIAN,
 995};
 996
 997static int mv88w8618_flashcfg_init(SysBusDevice *dev)
 998{
 999    mv88w8618_flashcfg_state *s = FROM_SYSBUS(mv88w8618_flashcfg_state, dev);
1000
1001    s->cfgr0 = 0xfffe4285; /* Default as set by U-Boot for 8 MB flash */
1002    memory_region_init_io(&s->iomem, &mv88w8618_flashcfg_ops, s,
1003                          "musicpal-flashcfg", MP_FLASHCFG_SIZE);
1004    sysbus_init_mmio(dev, &s->iomem);
1005    return 0;
1006}
1007
1008static const VMStateDescription mv88w8618_flashcfg_vmsd = {
1009    .name = "mv88w8618_flashcfg",
1010    .version_id = 1,
1011    .minimum_version_id = 1,
1012    .minimum_version_id_old = 1,
1013    .fields = (VMStateField[]) {
1014        VMSTATE_UINT32(cfgr0, mv88w8618_flashcfg_state),
1015        VMSTATE_END_OF_LIST()
1016    }
1017};
1018
1019static void mv88w8618_flashcfg_class_init(ObjectClass *klass, void *data)
1020{
1021    DeviceClass *dc = DEVICE_CLASS(klass);
1022    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
1023
1024    k->init = mv88w8618_flashcfg_init;
1025    dc->vmsd = &mv88w8618_flashcfg_vmsd;
1026}
1027
1028static const TypeInfo mv88w8618_flashcfg_info = {
1029    .name          = "mv88w8618_flashcfg",
1030    .parent        = TYPE_SYS_BUS_DEVICE,
1031    .instance_size = sizeof(mv88w8618_flashcfg_state),
1032    .class_init    = mv88w8618_flashcfg_class_init,
1033};
1034
1035/* Misc register offsets */
1036#define MP_MISC_BOARD_REVISION  0x18
1037
1038#define MP_BOARD_REVISION       0x31
1039
1040typedef struct {
1041    SysBusDevice parent_obj;
1042    MemoryRegion iomem;
1043} MusicPalMiscState;
1044
1045#define TYPE_MUSICPAL_MISC "musicpal-misc"
1046#define MUSICPAL_MISC(obj) \
1047     OBJECT_CHECK(MusicPalMiscState, (obj), TYPE_MUSICPAL_MISC)
1048
1049static uint64_t musicpal_misc_read(void *opaque, hwaddr offset,
1050                                   unsigned size)
1051{
1052    switch (offset) {
1053    case MP_MISC_BOARD_REVISION:
1054        return MP_BOARD_REVISION;
1055
1056    default:
1057        return 0;
1058    }
1059}
1060
1061static void musicpal_misc_write(void *opaque, hwaddr offset,
1062                                uint64_t value, unsigned size)
1063{
1064}
1065
1066static const MemoryRegionOps musicpal_misc_ops = {
1067    .read = musicpal_misc_read,
1068    .write = musicpal_misc_write,
1069    .endianness = DEVICE_NATIVE_ENDIAN,
1070};
1071
1072static void musicpal_misc_init(Object *obj)
1073{
1074    SysBusDevice *sd = SYS_BUS_DEVICE(obj);
1075    MusicPalMiscState *s = MUSICPAL_MISC(obj);
1076
1077    memory_region_init_io(&s->iomem, &musicpal_misc_ops, NULL,
1078                          "musicpal-misc", MP_MISC_SIZE);
1079    sysbus_init_mmio(sd, &s->iomem);
1080}
1081
1082static const TypeInfo musicpal_misc_info = {
1083    .name = TYPE_MUSICPAL_MISC,
1084    .parent = TYPE_SYS_BUS_DEVICE,
1085    .instance_init = musicpal_misc_init,
1086    .instance_size = sizeof(MusicPalMiscState),
1087};
1088
1089/* WLAN register offsets */
1090#define MP_WLAN_MAGIC1          0x11c
1091#define MP_WLAN_MAGIC2          0x124
1092
1093static uint64_t mv88w8618_wlan_read(void *opaque, hwaddr offset,
1094                                    unsigned size)
1095{
1096    switch (offset) {
1097    /* Workaround to allow loading the binary-only wlandrv.ko crap
1098     * from the original Freecom firmware. */
1099    case MP_WLAN_MAGIC1:
1100        return ~3;
1101    case MP_WLAN_MAGIC2:
1102        return -1;
1103
1104    default:
1105        return 0;
1106    }
1107}
1108
1109static void mv88w8618_wlan_write(void *opaque, hwaddr offset,
1110                                 uint64_t value, unsigned size)
1111{
1112}
1113
1114static const MemoryRegionOps mv88w8618_wlan_ops = {
1115    .read = mv88w8618_wlan_read,
1116    .write =mv88w8618_wlan_write,
1117    .endianness = DEVICE_NATIVE_ENDIAN,
1118};
1119
1120static int mv88w8618_wlan_init(SysBusDevice *dev)
1121{
1122    MemoryRegion *iomem = g_new(MemoryRegion, 1);
1123
1124    memory_region_init_io(iomem, &mv88w8618_wlan_ops, NULL,
1125                          "musicpal-wlan", MP_WLAN_SIZE);
1126    sysbus_init_mmio(dev, iomem);
1127    return 0;
1128}
1129
1130/* GPIO register offsets */
1131#define MP_GPIO_OE_LO           0x008
1132#define MP_GPIO_OUT_LO          0x00c
1133#define MP_GPIO_IN_LO           0x010
1134#define MP_GPIO_IER_LO          0x014
1135#define MP_GPIO_IMR_LO          0x018
1136#define MP_GPIO_ISR_LO          0x020
1137#define MP_GPIO_OE_HI           0x508
1138#define MP_GPIO_OUT_HI          0x50c
1139#define MP_GPIO_IN_HI           0x510
1140#define MP_GPIO_IER_HI          0x514
1141#define MP_GPIO_IMR_HI          0x518
1142#define MP_GPIO_ISR_HI          0x520
1143
1144/* GPIO bits & masks */
1145#define MP_GPIO_LCD_BRIGHTNESS  0x00070000
1146#define MP_GPIO_I2C_DATA_BIT    29
1147#define MP_GPIO_I2C_CLOCK_BIT   30
1148
1149/* LCD brightness bits in GPIO_OE_HI */
1150#define MP_OE_LCD_BRIGHTNESS    0x0007
1151
1152typedef struct musicpal_gpio_state {
1153    SysBusDevice busdev;
1154    MemoryRegion iomem;
1155    uint32_t lcd_brightness;
1156    uint32_t out_state;
1157    uint32_t in_state;
1158    uint32_t ier;
1159    uint32_t imr;
1160    uint32_t isr;
1161    qemu_irq irq;
1162    qemu_irq out[5]; /* 3 brightness out + 2 lcd (data and clock ) */
1163} musicpal_gpio_state;
1164
1165static void musicpal_gpio_brightness_update(musicpal_gpio_state *s) {
1166    int i;
1167    uint32_t brightness;
1168
1169    /* compute brightness ratio */
1170    switch (s->lcd_brightness) {
1171    case 0x00000007:
1172        brightness = 0;
1173        break;
1174
1175    case 0x00020000:
1176        brightness = 1;
1177        break;
1178
1179    case 0x00020001:
1180        brightness = 2;
1181        break;
1182
1183    case 0x00040000:
1184        brightness = 3;
1185        break;
1186
1187    case 0x00010006:
1188        brightness = 4;
1189        break;
1190
1191    case 0x00020005:
1192        brightness = 5;
1193        break;
1194
1195    case 0x00040003:
1196        brightness = 6;
1197        break;
1198
1199    case 0x00030004:
1200    default:
1201        brightness = 7;
1202    }
1203
1204    /* set lcd brightness GPIOs  */
1205    for (i = 0; i <= 2; i++) {
1206        qemu_set_irq(s->out[i], (brightness >> i) & 1);
1207    }
1208}
1209
1210static void musicpal_gpio_pin_event(void *opaque, int pin, int level)
1211{
1212    musicpal_gpio_state *s = opaque;
1213    uint32_t mask = 1 << pin;
1214    uint32_t delta = level << pin;
1215    uint32_t old = s->in_state & mask;
1216
1217    s->in_state &= ~mask;
1218    s->in_state |= delta;
1219
1220    if ((old ^ delta) &&
1221        ((level && (s->imr & mask)) || (!level && (s->ier & mask)))) {
1222        s->isr = mask;
1223        qemu_irq_raise(s->irq);
1224    }
1225}
1226
1227static uint64_t musicpal_gpio_read(void *opaque, hwaddr offset,
1228                                   unsigned size)
1229{
1230    musicpal_gpio_state *s = opaque;
1231
1232    switch (offset) {
1233    case MP_GPIO_OE_HI: /* used for LCD brightness control */
1234        return s->lcd_brightness & MP_OE_LCD_BRIGHTNESS;
1235
1236    case MP_GPIO_OUT_LO:
1237        return s->out_state & 0xFFFF;
1238    case MP_GPIO_OUT_HI:
1239        return s->out_state >> 16;
1240
1241    case MP_GPIO_IN_LO:
1242        return s->in_state & 0xFFFF;
1243    case MP_GPIO_IN_HI:
1244        return s->in_state >> 16;
1245
1246    case MP_GPIO_IER_LO:
1247        return s->ier & 0xFFFF;
1248    case MP_GPIO_IER_HI:
1249        return s->ier >> 16;
1250
1251    case MP_GPIO_IMR_LO:
1252        return s->imr & 0xFFFF;
1253    case MP_GPIO_IMR_HI:
1254        return s->imr >> 16;
1255
1256    case MP_GPIO_ISR_LO:
1257        return s->isr & 0xFFFF;
1258    case MP_GPIO_ISR_HI:
1259        return s->isr >> 16;
1260
1261    default:
1262        return 0;
1263    }
1264}
1265
1266static void musicpal_gpio_write(void *opaque, hwaddr offset,
1267                                uint64_t value, unsigned size)
1268{
1269    musicpal_gpio_state *s = opaque;
1270    switch (offset) {
1271    case MP_GPIO_OE_HI: /* used for LCD brightness control */
1272        s->lcd_brightness = (s->lcd_brightness & MP_GPIO_LCD_BRIGHTNESS) |
1273                         (value & MP_OE_LCD_BRIGHTNESS);
1274        musicpal_gpio_brightness_update(s);
1275        break;
1276
1277    case MP_GPIO_OUT_LO:
1278        s->out_state = (s->out_state & 0xFFFF0000) | (value & 0xFFFF);
1279        break;
1280    case MP_GPIO_OUT_HI:
1281        s->out_state = (s->out_state & 0xFFFF) | (value << 16);
1282        s->lcd_brightness = (s->lcd_brightness & 0xFFFF) |
1283                            (s->out_state & MP_GPIO_LCD_BRIGHTNESS);
1284        musicpal_gpio_brightness_update(s);
1285        qemu_set_irq(s->out[3], (s->out_state >> MP_GPIO_I2C_DATA_BIT) & 1);
1286        qemu_set_irq(s->out[4], (s->out_state >> MP_GPIO_I2C_CLOCK_BIT) & 1);
1287        break;
1288
1289    case MP_GPIO_IER_LO:
1290        s->ier = (s->ier & 0xFFFF0000) | (value & 0xFFFF);
1291        break;
1292    case MP_GPIO_IER_HI:
1293        s->ier = (s->ier & 0xFFFF) | (value << 16);
1294        break;
1295
1296    case MP_GPIO_IMR_LO:
1297        s->imr = (s->imr & 0xFFFF0000) | (value & 0xFFFF);
1298        break;
1299    case MP_GPIO_IMR_HI:
1300        s->imr = (s->imr & 0xFFFF) | (value << 16);
1301        break;
1302    }
1303}
1304
1305static const MemoryRegionOps musicpal_gpio_ops = {
1306    .read = musicpal_gpio_read,
1307    .write = musicpal_gpio_write,
1308    .endianness = DEVICE_NATIVE_ENDIAN,
1309};
1310
1311static void musicpal_gpio_reset(DeviceState *d)
1312{
1313    musicpal_gpio_state *s = FROM_SYSBUS(musicpal_gpio_state,
1314                                         SYS_BUS_DEVICE(d));
1315
1316    s->lcd_brightness = 0;
1317    s->out_state = 0;
1318    s->in_state = 0xffffffff;
1319    s->ier = 0;
1320    s->imr = 0;
1321    s->isr = 0;
1322}
1323
1324static int musicpal_gpio_init(SysBusDevice *dev)
1325{
1326    musicpal_gpio_state *s = FROM_SYSBUS(musicpal_gpio_state, dev);
1327
1328    sysbus_init_irq(dev, &s->irq);
1329
1330    memory_region_init_io(&s->iomem, &musicpal_gpio_ops, s,
1331                          "musicpal-gpio", MP_GPIO_SIZE);
1332    sysbus_init_mmio(dev, &s->iomem);
1333
1334    qdev_init_gpio_out(&dev->qdev, s->out, ARRAY_SIZE(s->out));
1335
1336    qdev_init_gpio_in(&dev->qdev, musicpal_gpio_pin_event, 32);
1337
1338    return 0;
1339}
1340
1341static const VMStateDescription musicpal_gpio_vmsd = {
1342    .name = "musicpal_gpio",
1343    .version_id = 1,
1344    .minimum_version_id = 1,
1345    .minimum_version_id_old = 1,
1346    .fields = (VMStateField[]) {
1347        VMSTATE_UINT32(lcd_brightness, musicpal_gpio_state),
1348        VMSTATE_UINT32(out_state, musicpal_gpio_state),
1349        VMSTATE_UINT32(in_state, musicpal_gpio_state),
1350        VMSTATE_UINT32(ier, musicpal_gpio_state),
1351        VMSTATE_UINT32(imr, musicpal_gpio_state),
1352        VMSTATE_UINT32(isr, musicpal_gpio_state),
1353        VMSTATE_END_OF_LIST()
1354    }
1355};
1356
1357static void musicpal_gpio_class_init(ObjectClass *klass, void *data)
1358{
1359    DeviceClass *dc = DEVICE_CLASS(klass);
1360    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
1361
1362    k->init = musicpal_gpio_init;
1363    dc->reset = musicpal_gpio_reset;
1364    dc->vmsd = &musicpal_gpio_vmsd;
1365}
1366
1367static const TypeInfo musicpal_gpio_info = {
1368    .name          = "musicpal_gpio",
1369    .parent        = TYPE_SYS_BUS_DEVICE,
1370    .instance_size = sizeof(musicpal_gpio_state),
1371    .class_init    = musicpal_gpio_class_init,
1372};
1373
1374/* Keyboard codes & masks */
1375#define KEY_RELEASED            0x80
1376#define KEY_CODE                0x7f
1377
1378#define KEYCODE_TAB             0x0f
1379#define KEYCODE_ENTER           0x1c
1380#define KEYCODE_F               0x21
1381#define KEYCODE_M               0x32
1382
1383#define KEYCODE_EXTENDED        0xe0
1384#define KEYCODE_UP              0x48
1385#define KEYCODE_DOWN            0x50
1386#define KEYCODE_LEFT            0x4b
1387#define KEYCODE_RIGHT           0x4d
1388
1389#define MP_KEY_WHEEL_VOL       (1 << 0)
1390#define MP_KEY_WHEEL_VOL_INV   (1 << 1)
1391#define MP_KEY_WHEEL_NAV       (1 << 2)
1392#define MP_KEY_WHEEL_NAV_INV   (1 << 3)
1393#define MP_KEY_BTN_FAVORITS    (1 << 4)
1394#define MP_KEY_BTN_MENU        (1 << 5)
1395#define MP_KEY_BTN_VOLUME      (1 << 6)
1396#define MP_KEY_BTN_NAVIGATION  (1 << 7)
1397
1398typedef struct musicpal_key_state {
1399    SysBusDevice busdev;
1400    MemoryRegion iomem;
1401    uint32_t kbd_extended;
1402    uint32_t pressed_keys;
1403    qemu_irq out[8];
1404} musicpal_key_state;
1405
1406static void musicpal_key_event(void *opaque, int keycode)
1407{
1408    musicpal_key_state *s = opaque;
1409    uint32_t event = 0;
1410    int i;
1411
1412    if (keycode == KEYCODE_EXTENDED) {
1413        s->kbd_extended = 1;
1414        return;
1415    }
1416
1417    if (s->kbd_extended) {
1418        switch (keycode & KEY_CODE) {
1419        case KEYCODE_UP:
1420            event = MP_KEY_WHEEL_NAV | MP_KEY_WHEEL_NAV_INV;
1421            break;
1422
1423        case KEYCODE_DOWN:
1424            event = MP_KEY_WHEEL_NAV;
1425            break;
1426
1427        case KEYCODE_LEFT:
1428            event = MP_KEY_WHEEL_VOL | MP_KEY_WHEEL_VOL_INV;
1429            break;
1430
1431        case KEYCODE_RIGHT:
1432            event = MP_KEY_WHEEL_VOL;
1433            break;
1434        }
1435    } else {
1436        switch (keycode & KEY_CODE) {
1437        case KEYCODE_F:
1438            event = MP_KEY_BTN_FAVORITS;
1439            break;
1440
1441        case KEYCODE_TAB:
1442            event = MP_KEY_BTN_VOLUME;
1443            break;
1444
1445        case KEYCODE_ENTER:
1446            event = MP_KEY_BTN_NAVIGATION;
1447            break;
1448
1449        case KEYCODE_M:
1450            event = MP_KEY_BTN_MENU;
1451            break;
1452        }
1453        /* Do not repeat already pressed buttons */
1454        if (!(keycode & KEY_RELEASED) && (s->pressed_keys & event)) {
1455            event = 0;
1456        }
1457    }
1458
1459    if (event) {
1460        /* Raise GPIO pin first if repeating a key */
1461        if (!(keycode & KEY_RELEASED) && (s->pressed_keys & event)) {
1462            for (i = 0; i <= 7; i++) {
1463                if (event & (1 << i)) {
1464                    qemu_set_irq(s->out[i], 1);
1465                }
1466            }
1467        }
1468        for (i = 0; i <= 7; i++) {
1469            if (event & (1 << i)) {
1470                qemu_set_irq(s->out[i], !!(keycode & KEY_RELEASED));
1471            }
1472        }
1473        if (keycode & KEY_RELEASED) {
1474            s->pressed_keys &= ~event;
1475        } else {
1476            s->pressed_keys |= event;
1477        }
1478    }
1479
1480    s->kbd_extended = 0;
1481}
1482
1483static int musicpal_key_init(SysBusDevice *dev)
1484{
1485    musicpal_key_state *s = FROM_SYSBUS(musicpal_key_state, dev);
1486
1487    memory_region_init(&s->iomem, "dummy", 0);
1488    sysbus_init_mmio(dev, &s->iomem);
1489
1490    s->kbd_extended = 0;
1491    s->pressed_keys = 0;
1492
1493    qdev_init_gpio_out(&dev->qdev, s->out, ARRAY_SIZE(s->out));
1494
1495    qemu_add_kbd_event_handler(musicpal_key_event, s);
1496
1497    return 0;
1498}
1499
1500static const VMStateDescription musicpal_key_vmsd = {
1501    .name = "musicpal_key",
1502    .version_id = 1,
1503    .minimum_version_id = 1,
1504    .minimum_version_id_old = 1,
1505    .fields = (VMStateField[]) {
1506        VMSTATE_UINT32(kbd_extended, musicpal_key_state),
1507        VMSTATE_UINT32(pressed_keys, musicpal_key_state),
1508        VMSTATE_END_OF_LIST()
1509    }
1510};
1511
1512static void musicpal_key_class_init(ObjectClass *klass, void *data)
1513{
1514    DeviceClass *dc = DEVICE_CLASS(klass);
1515    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
1516
1517    k->init = musicpal_key_init;
1518    dc->vmsd = &musicpal_key_vmsd;
1519}
1520
1521static const TypeInfo musicpal_key_info = {
1522    .name          = "musicpal_key",
1523    .parent        = TYPE_SYS_BUS_DEVICE,
1524    .instance_size = sizeof(musicpal_key_state),
1525    .class_init    = musicpal_key_class_init,
1526};
1527
1528static struct arm_boot_info musicpal_binfo = {
1529    .loader_start = 0x0,
1530    .board_id = 0x20e,
1531};
1532
1533static void musicpal_init(QEMUMachineInitArgs *args)
1534{
1535    const char *cpu_model = args->cpu_model;
1536    const char *kernel_filename = args->kernel_filename;
1537    const char *kernel_cmdline = args->kernel_cmdline;
1538    const char *initrd_filename = args->initrd_filename;
1539    ARMCPU *cpu;
1540    qemu_irq *cpu_pic;
1541    qemu_irq pic[32];
1542    DeviceState *dev;
1543    DeviceState *i2c_dev;
1544    DeviceState *lcd_dev;
1545    DeviceState *key_dev;
1546    DeviceState *wm8750_dev;
1547    SysBusDevice *s;
1548    i2c_bus *i2c;
1549    int i;
1550    unsigned long flash_size;
1551    DriveInfo *dinfo;
1552    MemoryRegion *address_space_mem = get_system_memory();
1553    MemoryRegion *ram = g_new(MemoryRegion, 1);
1554    MemoryRegion *sram = g_new(MemoryRegion, 1);
1555
1556    if (!cpu_model) {
1557        cpu_model = "arm926";
1558    }
1559    cpu = cpu_arm_init(cpu_model);
1560    if (!cpu) {
1561        fprintf(stderr, "Unable to find CPU definition\n");
1562        exit(1);
1563    }
1564    cpu_pic = arm_pic_init_cpu(cpu);
1565
1566    /* For now we use a fixed - the original - RAM size */
1567    memory_region_init_ram(ram, "musicpal.ram", MP_RAM_DEFAULT_SIZE);
1568    vmstate_register_ram_global(ram);
1569    memory_region_add_subregion(address_space_mem, 0, ram);
1570
1571    memory_region_init_ram(sram, "musicpal.sram", MP_SRAM_SIZE);
1572    vmstate_register_ram_global(sram);
1573    memory_region_add_subregion(address_space_mem, MP_SRAM_BASE, sram);
1574
1575    dev = sysbus_create_simple("mv88w8618_pic", MP_PIC_BASE,
1576                               cpu_pic[ARM_PIC_CPU_IRQ]);
1577    for (i = 0; i < 32; i++) {
1578        pic[i] = qdev_get_gpio_in(dev, i);
1579    }
1580    sysbus_create_varargs("mv88w8618_pit", MP_PIT_BASE, pic[MP_TIMER1_IRQ],
1581                          pic[MP_TIMER2_IRQ], pic[MP_TIMER3_IRQ],
1582                          pic[MP_TIMER4_IRQ], NULL);
1583
1584    if (serial_hds[0]) {
1585        serial_mm_init(address_space_mem, MP_UART1_BASE, 2, pic[MP_UART1_IRQ],
1586                       1825000, serial_hds[0], DEVICE_NATIVE_ENDIAN);
1587    }
1588    if (serial_hds[1]) {
1589        serial_mm_init(address_space_mem, MP_UART2_BASE, 2, pic[MP_UART2_IRQ],
1590                       1825000, serial_hds[1], DEVICE_NATIVE_ENDIAN);
1591    }
1592
1593    /* Register flash */
1594    dinfo = drive_get(IF_PFLASH, 0, 0);
1595    if (dinfo) {
1596        flash_size = bdrv_getlength(dinfo->bdrv);
1597        if (flash_size != 8*1024*1024 && flash_size != 16*1024*1024 &&
1598            flash_size != 32*1024*1024) {
1599            fprintf(stderr, "Invalid flash image size\n");
1600            exit(1);
1601        }
1602
1603        /*
1604         * The original U-Boot accesses the flash at 0xFE000000 instead of
1605         * 0xFF800000 (if there is 8 MB flash). So remap flash access if the
1606         * image is smaller than 32 MB.
1607         */
1608#ifdef TARGET_WORDS_BIGENDIAN
1609        pflash_cfi02_register(0x100000000ULL-MP_FLASH_SIZE_MAX, NULL,
1610                              "musicpal.flash", flash_size,
1611                              dinfo->bdrv, 0x10000,
1612                              (flash_size + 0xffff) >> 16,
1613                              MP_FLASH_SIZE_MAX / flash_size,
1614                              2, 0x00BF, 0x236D, 0x0000, 0x0000,
1615                              0x5555, 0x2AAA, 1);
1616#else
1617        pflash_cfi02_register(0x100000000ULL-MP_FLASH_SIZE_MAX, NULL,
1618                              "musicpal.flash", flash_size,
1619                              dinfo->bdrv, 0x10000,
1620                              (flash_size + 0xffff) >> 16,
1621                              MP_FLASH_SIZE_MAX / flash_size,
1622                              2, 0x00BF, 0x236D, 0x0000, 0x0000,
1623                              0x5555, 0x2AAA, 0);
1624#endif
1625
1626    }
1627    sysbus_create_simple("mv88w8618_flashcfg", MP_FLASHCFG_BASE, NULL);
1628
1629    qemu_check_nic_model(&nd_table[0], "mv88w8618");
1630    dev = qdev_create(NULL, "mv88w8618_eth");
1631    qdev_set_nic_properties(dev, &nd_table[0]);
1632    qdev_init_nofail(dev);
1633    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, MP_ETH_BASE);
1634    sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[MP_ETH_IRQ]);
1635
1636    sysbus_create_simple("mv88w8618_wlan", MP_WLAN_BASE, NULL);
1637
1638    sysbus_create_simple(TYPE_MUSICPAL_MISC, MP_MISC_BASE, NULL);
1639
1640    dev = sysbus_create_simple("musicpal_gpio", MP_GPIO_BASE, pic[MP_GPIO_IRQ]);
1641    i2c_dev = sysbus_create_simple("gpio_i2c", -1, NULL);
1642    i2c = (i2c_bus *)qdev_get_child_bus(i2c_dev, "i2c");
1643
1644    lcd_dev = sysbus_create_simple("musicpal_lcd", MP_LCD_BASE, NULL);
1645    key_dev = sysbus_create_simple("musicpal_key", -1, NULL);
1646
1647    /* I2C read data */
1648    qdev_connect_gpio_out(i2c_dev, 0,
1649                          qdev_get_gpio_in(dev, MP_GPIO_I2C_DATA_BIT));
1650    /* I2C data */
1651    qdev_connect_gpio_out(dev, 3, qdev_get_gpio_in(i2c_dev, 0));
1652    /* I2C clock */
1653    qdev_connect_gpio_out(dev, 4, qdev_get_gpio_in(i2c_dev, 1));
1654
1655    for (i = 0; i < 3; i++) {
1656        qdev_connect_gpio_out(dev, i, qdev_get_gpio_in(lcd_dev, i));
1657    }
1658    for (i = 0; i < 4; i++) {
1659        qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i + 8));
1660    }
1661    for (i = 4; i < 8; i++) {
1662        qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i + 15));
1663    }
1664
1665    wm8750_dev = i2c_create_slave(i2c, "wm8750", MP_WM_ADDR);
1666    dev = qdev_create(NULL, "mv88w8618_audio");
1667    s = SYS_BUS_DEVICE(dev);
1668    qdev_prop_set_ptr(dev, "wm8750", wm8750_dev);
1669    qdev_init_nofail(dev);
1670    sysbus_mmio_map(s, 0, MP_AUDIO_BASE);
1671    sysbus_connect_irq(s, 0, pic[MP_AUDIO_IRQ]);
1672
1673    musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE;
1674    musicpal_binfo.kernel_filename = kernel_filename;
1675    musicpal_binfo.kernel_cmdline = kernel_cmdline;
1676    musicpal_binfo.initrd_filename = initrd_filename;
1677    arm_load_kernel(cpu, &musicpal_binfo);
1678}
1679
1680static QEMUMachine musicpal_machine = {
1681    .name = "musicpal",
1682    .desc = "Marvell 88w8618 / MusicPal (ARM926EJ-S)",
1683    .init = musicpal_init,
1684    DEFAULT_MACHINE_OPTIONS,
1685};
1686
1687static void musicpal_machine_init(void)
1688{
1689    qemu_register_machine(&musicpal_machine);
1690}
1691
1692machine_init(musicpal_machine_init);
1693
1694static void mv88w8618_wlan_class_init(ObjectClass *klass, void *data)
1695{
1696    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
1697
1698    sdc->init = mv88w8618_wlan_init;
1699}
1700
1701static const TypeInfo mv88w8618_wlan_info = {
1702    .name          = "mv88w8618_wlan",
1703    .parent        = TYPE_SYS_BUS_DEVICE,
1704    .instance_size = sizeof(SysBusDevice),
1705    .class_init    = mv88w8618_wlan_class_init,
1706};
1707
1708static void musicpal_register_types(void)
1709{
1710    type_register_static(&mv88w8618_pic_info);
1711    type_register_static(&mv88w8618_pit_info);
1712    type_register_static(&mv88w8618_flashcfg_info);
1713    type_register_static(&mv88w8618_eth_info);
1714    type_register_static(&mv88w8618_wlan_info);
1715    type_register_static(&musicpal_lcd_info);
1716    type_register_static(&musicpal_gpio_info);
1717    type_register_static(&musicpal_key_info);
1718    type_register_static(&musicpal_misc_info);
1719}
1720
1721type_init(musicpal_register_types)
1722