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 "cpu.h"
  15#include "hw/sysbus.h"
  16#include "migration/vmstate.h"
  17#include "hw/arm/boot.h"
  18#include "net/net.h"
  19#include "sysemu/sysemu.h"
  20#include "hw/boards.h"
  21#include "hw/char/serial.h"
  22#include "hw/hw.h"
  23#include "qemu/timer.h"
  24#include "hw/ptimer.h"
  25#include "hw/qdev-properties.h"
  26#include "hw/block/flash.h"
  27#include "ui/console.h"
  28#include "hw/i2c/i2c.h"
  29#include "hw/irq.h"
  30#include "hw/or-irq.h"
  31#include "hw/audio/wm8750.h"
  32#include "sysemu/block-backend.h"
  33#include "sysemu/runstate.h"
  34#include "sysemu/dma.h"
  35#include "exec/address-spaces.h"
  36#include "ui/pixel_ops.h"
  37#include "qemu/cutils.h"
  38#include "qom/object.h"
  39
  40#define MP_MISC_BASE            0x80002000
  41#define MP_MISC_SIZE            0x00001000
  42
  43#define MP_ETH_BASE             0x80008000
  44#define MP_ETH_SIZE             0x00001000
  45
  46#define MP_WLAN_BASE            0x8000C000
  47#define MP_WLAN_SIZE            0x00000800
  48
  49#define MP_UART1_BASE           0x8000C840
  50#define MP_UART2_BASE           0x8000C940
  51
  52#define MP_GPIO_BASE            0x8000D000
  53#define MP_GPIO_SIZE            0x00001000
  54
  55#define MP_FLASHCFG_BASE        0x90006000
  56#define MP_FLASHCFG_SIZE        0x00001000
  57
  58#define MP_AUDIO_BASE           0x90007000
  59
  60#define MP_PIC_BASE             0x90008000
  61#define MP_PIC_SIZE             0x00001000
  62
  63#define MP_PIT_BASE             0x90009000
  64#define MP_PIT_SIZE             0x00001000
  65
  66#define MP_LCD_BASE             0x9000c000
  67#define MP_LCD_SIZE             0x00001000
  68
  69#define MP_SRAM_BASE            0xC0000000
  70#define MP_SRAM_SIZE            0x00020000
  71
  72#define MP_RAM_DEFAULT_SIZE     32*1024*1024
  73#define MP_FLASH_SIZE_MAX       32*1024*1024
  74
  75#define MP_TIMER1_IRQ           4
  76#define MP_TIMER2_IRQ           5
  77#define MP_TIMER3_IRQ           6
  78#define MP_TIMER4_IRQ           7
  79#define MP_EHCI_IRQ             8
  80#define MP_ETH_IRQ              9
  81#define MP_UART_SHARED_IRQ      11
  82#define MP_GPIO_IRQ             12
  83#define MP_RTC_IRQ              28
  84#define MP_AUDIO_IRQ            30
  85
  86/* Wolfson 8750 I2C address */
  87#define MP_WM_ADDR              0x1A
  88
  89/* Ethernet register offsets */
  90#define MP_ETH_SMIR             0x010
  91#define MP_ETH_PCXR             0x408
  92#define MP_ETH_SDCMR            0x448
  93#define MP_ETH_ICR              0x450
  94#define MP_ETH_IMR              0x458
  95#define MP_ETH_FRDP0            0x480
  96#define MP_ETH_FRDP1            0x484
  97#define MP_ETH_FRDP2            0x488
  98#define MP_ETH_FRDP3            0x48C
  99#define MP_ETH_CRDP0            0x4A0
 100#define MP_ETH_CRDP1            0x4A4
 101#define MP_ETH_CRDP2            0x4A8
 102#define MP_ETH_CRDP3            0x4AC
 103#define MP_ETH_CTDP0            0x4E0
 104#define MP_ETH_CTDP1            0x4E4
 105
 106/* MII PHY access */
 107#define MP_ETH_SMIR_DATA        0x0000FFFF
 108#define MP_ETH_SMIR_ADDR        0x03FF0000
 109#define MP_ETH_SMIR_OPCODE      (1 << 26) /* Read value */
 110#define MP_ETH_SMIR_RDVALID     (1 << 27)
 111
 112/* PHY registers */
 113#define MP_ETH_PHY1_BMSR        0x00210000
 114#define MP_ETH_PHY1_PHYSID1     0x00410000
 115#define MP_ETH_PHY1_PHYSID2     0x00610000
 116
 117#define MP_PHY_BMSR_LINK        0x0004
 118#define MP_PHY_BMSR_AUTONEG     0x0008
 119
 120#define MP_PHY_88E3015          0x01410E20
 121
 122/* TX descriptor status */
 123#define MP_ETH_TX_OWN           (1U << 31)
 124
 125/* RX descriptor status */
 126#define MP_ETH_RX_OWN           (1U << 31)
 127
 128/* Interrupt cause/mask bits */
 129#define MP_ETH_IRQ_RX_BIT       0
 130#define MP_ETH_IRQ_RX           (1 << MP_ETH_IRQ_RX_BIT)
 131#define MP_ETH_IRQ_TXHI_BIT     2
 132#define MP_ETH_IRQ_TXLO_BIT     3
 133
 134/* Port config bits */
 135#define MP_ETH_PCXR_2BSM_BIT    28 /* 2-byte incoming suffix */
 136
 137/* SDMA command bits */
 138#define MP_ETH_CMD_TXHI         (1 << 23)
 139#define MP_ETH_CMD_TXLO         (1 << 22)
 140
 141typedef struct mv88w8618_tx_desc {
 142    uint32_t cmdstat;
 143    uint16_t res;
 144    uint16_t bytes;
 145    uint32_t buffer;
 146    uint32_t next;
 147} mv88w8618_tx_desc;
 148
 149typedef struct mv88w8618_rx_desc {
 150    uint32_t cmdstat;
 151    uint16_t bytes;
 152    uint16_t buffer_size;
 153    uint32_t buffer;
 154    uint32_t next;
 155} mv88w8618_rx_desc;
 156
 157#define TYPE_MV88W8618_ETH "mv88w8618_eth"
 158OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_eth_state, MV88W8618_ETH)
 159
 160struct mv88w8618_eth_state {
 161    /*< private >*/
 162    SysBusDevice parent_obj;
 163    /*< public >*/
 164
 165    MemoryRegion iomem;
 166    qemu_irq irq;
 167    MemoryRegion *dma_mr;
 168    AddressSpace dma_as;
 169    uint32_t smir;
 170    uint32_t icr;
 171    uint32_t imr;
 172    int mmio_index;
 173    uint32_t vlan_header;
 174    uint32_t tx_queue[2];
 175    uint32_t rx_queue[4];
 176    uint32_t frx_queue[4];
 177    uint32_t cur_rx[4];
 178    NICState *nic;
 179    NICConf conf;
 180};
 181
 182static void eth_rx_desc_put(AddressSpace *dma_as, uint32_t addr,
 183                            mv88w8618_rx_desc *desc)
 184{
 185    cpu_to_le32s(&desc->cmdstat);
 186    cpu_to_le16s(&desc->bytes);
 187    cpu_to_le16s(&desc->buffer_size);
 188    cpu_to_le32s(&desc->buffer);
 189    cpu_to_le32s(&desc->next);
 190    dma_memory_write(dma_as, addr, desc, sizeof(*desc));
 191}
 192
 193static void eth_rx_desc_get(AddressSpace *dma_as, uint32_t addr,
 194                            mv88w8618_rx_desc *desc)
 195{
 196    dma_memory_read(dma_as, addr, desc, sizeof(*desc));
 197    le32_to_cpus(&desc->cmdstat);
 198    le16_to_cpus(&desc->bytes);
 199    le16_to_cpus(&desc->buffer_size);
 200    le32_to_cpus(&desc->buffer);
 201    le32_to_cpus(&desc->next);
 202}
 203
 204static ssize_t eth_receive(NetClientState *nc, const uint8_t *buf, size_t size)
 205{
 206    mv88w8618_eth_state *s = qemu_get_nic_opaque(nc);
 207    uint32_t desc_addr;
 208    mv88w8618_rx_desc desc;
 209    int i;
 210
 211    for (i = 0; i < 4; i++) {
 212        desc_addr = s->cur_rx[i];
 213        if (!desc_addr) {
 214            continue;
 215        }
 216        do {
 217            eth_rx_desc_get(&s->dma_as, desc_addr, &desc);
 218            if ((desc.cmdstat & MP_ETH_RX_OWN) && desc.buffer_size >= size) {
 219                dma_memory_write(&s->dma_as, desc.buffer + s->vlan_header,
 220                                          buf, size);
 221                desc.bytes = size + s->vlan_header;
 222                desc.cmdstat &= ~MP_ETH_RX_OWN;
 223                s->cur_rx[i] = desc.next;
 224
 225                s->icr |= MP_ETH_IRQ_RX;
 226                if (s->icr & s->imr) {
 227                    qemu_irq_raise(s->irq);
 228                }
 229                eth_rx_desc_put(&s->dma_as, desc_addr, &desc);
 230                return size;
 231            }
 232            desc_addr = desc.next;
 233        } while (desc_addr != s->rx_queue[i]);
 234    }
 235    return size;
 236}
 237
 238static void eth_tx_desc_put(AddressSpace *dma_as, uint32_t addr,
 239                            mv88w8618_tx_desc *desc)
 240{
 241    cpu_to_le32s(&desc->cmdstat);
 242    cpu_to_le16s(&desc->res);
 243    cpu_to_le16s(&desc->bytes);
 244    cpu_to_le32s(&desc->buffer);
 245    cpu_to_le32s(&desc->next);
 246    dma_memory_write(dma_as, addr, desc, sizeof(*desc));
 247}
 248
 249static void eth_tx_desc_get(AddressSpace *dma_as, uint32_t addr,
 250                            mv88w8618_tx_desc *desc)
 251{
 252    dma_memory_read(dma_as, addr, desc, sizeof(*desc));
 253    le32_to_cpus(&desc->cmdstat);
 254    le16_to_cpus(&desc->res);
 255    le16_to_cpus(&desc->bytes);
 256    le32_to_cpus(&desc->buffer);
 257    le32_to_cpus(&desc->next);
 258}
 259
 260static void eth_send(mv88w8618_eth_state *s, int queue_index)
 261{
 262    uint32_t desc_addr = s->tx_queue[queue_index];
 263    mv88w8618_tx_desc desc;
 264    uint32_t next_desc;
 265    uint8_t buf[2048];
 266    int len;
 267
 268    do {
 269        eth_tx_desc_get(&s->dma_as, desc_addr, &desc);
 270        next_desc = desc.next;
 271        if (desc.cmdstat & MP_ETH_TX_OWN) {
 272            len = desc.bytes;
 273            if (len < 2048) {
 274                dma_memory_read(&s->dma_as, desc.buffer, buf, len);
 275                qemu_send_packet(qemu_get_queue(s->nic), buf, len);
 276            }
 277            desc.cmdstat &= ~MP_ETH_TX_OWN;
 278            s->icr |= 1 << (MP_ETH_IRQ_TXLO_BIT - queue_index);
 279            eth_tx_desc_put(&s->dma_as, desc_addr, &desc);
 280        }
 281        desc_addr = next_desc;
 282    } while (desc_addr != s->tx_queue[queue_index]);
 283}
 284
 285static uint64_t mv88w8618_eth_read(void *opaque, hwaddr offset,
 286                                   unsigned size)
 287{
 288    mv88w8618_eth_state *s = opaque;
 289
 290    switch (offset) {
 291    case MP_ETH_SMIR:
 292        if (s->smir & MP_ETH_SMIR_OPCODE) {
 293            switch (s->smir & MP_ETH_SMIR_ADDR) {
 294            case MP_ETH_PHY1_BMSR:
 295                return MP_PHY_BMSR_LINK | MP_PHY_BMSR_AUTONEG |
 296                       MP_ETH_SMIR_RDVALID;
 297            case MP_ETH_PHY1_PHYSID1:
 298                return (MP_PHY_88E3015 >> 16) | MP_ETH_SMIR_RDVALID;
 299            case MP_ETH_PHY1_PHYSID2:
 300                return (MP_PHY_88E3015 & 0xFFFF) | MP_ETH_SMIR_RDVALID;
 301            default:
 302                return MP_ETH_SMIR_RDVALID;
 303            }
 304        }
 305        return 0;
 306
 307    case MP_ETH_ICR:
 308        return s->icr;
 309
 310    case MP_ETH_IMR:
 311        return s->imr;
 312
 313    case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
 314        return s->frx_queue[(offset - MP_ETH_FRDP0)/4];
 315
 316    case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
 317        return s->rx_queue[(offset - MP_ETH_CRDP0)/4];
 318
 319    case MP_ETH_CTDP0 ... MP_ETH_CTDP1:
 320        return s->tx_queue[(offset - MP_ETH_CTDP0)/4];
 321
 322    default:
 323        return 0;
 324    }
 325}
 326
 327static void mv88w8618_eth_write(void *opaque, hwaddr offset,
 328                                uint64_t value, unsigned size)
 329{
 330    mv88w8618_eth_state *s = opaque;
 331
 332    switch (offset) {
 333    case MP_ETH_SMIR:
 334        s->smir = value;
 335        break;
 336
 337    case MP_ETH_PCXR:
 338        s->vlan_header = ((value >> MP_ETH_PCXR_2BSM_BIT) & 1) * 2;
 339        break;
 340
 341    case MP_ETH_SDCMR:
 342        if (value & MP_ETH_CMD_TXHI) {
 343            eth_send(s, 1);
 344        }
 345        if (value & MP_ETH_CMD_TXLO) {
 346            eth_send(s, 0);
 347        }
 348        if (value & (MP_ETH_CMD_TXHI | MP_ETH_CMD_TXLO) && s->icr & s->imr) {
 349            qemu_irq_raise(s->irq);
 350        }
 351        break;
 352
 353    case MP_ETH_ICR:
 354        s->icr &= value;
 355        break;
 356
 357    case MP_ETH_IMR:
 358        s->imr = value;
 359        if (s->icr & s->imr) {
 360            qemu_irq_raise(s->irq);
 361        }
 362        break;
 363
 364    case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
 365        s->frx_queue[(offset - MP_ETH_FRDP0)/4] = value;
 366        break;
 367
 368    case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
 369        s->rx_queue[(offset - MP_ETH_CRDP0)/4] =
 370            s->cur_rx[(offset - MP_ETH_CRDP0)/4] = value;
 371        break;
 372
 373    case MP_ETH_CTDP0 ... MP_ETH_CTDP1:
 374        s->tx_queue[(offset - MP_ETH_CTDP0)/4] = value;
 375        break;
 376    }
 377}
 378
 379static const MemoryRegionOps mv88w8618_eth_ops = {
 380    .read = mv88w8618_eth_read,
 381    .write = mv88w8618_eth_write,
 382    .endianness = DEVICE_NATIVE_ENDIAN,
 383};
 384
 385static void eth_cleanup(NetClientState *nc)
 386{
 387    mv88w8618_eth_state *s = qemu_get_nic_opaque(nc);
 388
 389    s->nic = NULL;
 390}
 391
 392static NetClientInfo net_mv88w8618_info = {
 393    .type = NET_CLIENT_DRIVER_NIC,
 394    .size = sizeof(NICState),
 395    .receive = eth_receive,
 396    .cleanup = eth_cleanup,
 397};
 398
 399static void mv88w8618_eth_init(Object *obj)
 400{
 401    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 402    DeviceState *dev = DEVICE(sbd);
 403    mv88w8618_eth_state *s = MV88W8618_ETH(dev);
 404
 405    sysbus_init_irq(sbd, &s->irq);
 406    memory_region_init_io(&s->iomem, obj, &mv88w8618_eth_ops, s,
 407                          "mv88w8618-eth", MP_ETH_SIZE);
 408    sysbus_init_mmio(sbd, &s->iomem);
 409}
 410
 411static void mv88w8618_eth_realize(DeviceState *dev, Error **errp)
 412{
 413    mv88w8618_eth_state *s = MV88W8618_ETH(dev);
 414
 415    if (!s->dma_mr) {
 416        error_setg(errp, TYPE_MV88W8618_ETH " 'dma-memory' link not set");
 417        return;
 418    }
 419
 420    address_space_init(&s->dma_as, s->dma_mr, "emac-dma");
 421    s->nic = qemu_new_nic(&net_mv88w8618_info, &s->conf,
 422                          object_get_typename(OBJECT(dev)), dev->id, s);
 423}
 424
 425static const VMStateDescription mv88w8618_eth_vmsd = {
 426    .name = "mv88w8618_eth",
 427    .version_id = 1,
 428    .minimum_version_id = 1,
 429    .fields = (VMStateField[]) {
 430        VMSTATE_UINT32(smir, mv88w8618_eth_state),
 431        VMSTATE_UINT32(icr, mv88w8618_eth_state),
 432        VMSTATE_UINT32(imr, mv88w8618_eth_state),
 433        VMSTATE_UINT32(vlan_header, mv88w8618_eth_state),
 434        VMSTATE_UINT32_ARRAY(tx_queue, mv88w8618_eth_state, 2),
 435        VMSTATE_UINT32_ARRAY(rx_queue, mv88w8618_eth_state, 4),
 436        VMSTATE_UINT32_ARRAY(frx_queue, mv88w8618_eth_state, 4),
 437        VMSTATE_UINT32_ARRAY(cur_rx, mv88w8618_eth_state, 4),
 438        VMSTATE_END_OF_LIST()
 439    }
 440};
 441
 442static Property mv88w8618_eth_properties[] = {
 443    DEFINE_NIC_PROPERTIES(mv88w8618_eth_state, conf),
 444    DEFINE_PROP_LINK("dma-memory", mv88w8618_eth_state, dma_mr,
 445                     TYPE_MEMORY_REGION, MemoryRegion *),
 446    DEFINE_PROP_END_OF_LIST(),
 447};
 448
 449static void mv88w8618_eth_class_init(ObjectClass *klass, void *data)
 450{
 451    DeviceClass *dc = DEVICE_CLASS(klass);
 452
 453    dc->vmsd = &mv88w8618_eth_vmsd;
 454    device_class_set_props(dc, mv88w8618_eth_properties);
 455    dc->realize = mv88w8618_eth_realize;
 456}
 457
 458static const TypeInfo mv88w8618_eth_info = {
 459    .name          = TYPE_MV88W8618_ETH,
 460    .parent        = TYPE_SYS_BUS_DEVICE,
 461    .instance_size = sizeof(mv88w8618_eth_state),
 462    .instance_init = mv88w8618_eth_init,
 463    .class_init    = mv88w8618_eth_class_init,
 464};
 465
 466/* LCD register offsets */
 467#define MP_LCD_IRQCTRL          0x180
 468#define MP_LCD_IRQSTAT          0x184
 469#define MP_LCD_SPICTRL          0x1ac
 470#define MP_LCD_INST             0x1bc
 471#define MP_LCD_DATA             0x1c0
 472
 473/* Mode magics */
 474#define MP_LCD_SPI_DATA         0x00100011
 475#define MP_LCD_SPI_CMD          0x00104011
 476#define MP_LCD_SPI_INVALID      0x00000000
 477
 478/* Commmands */
 479#define MP_LCD_INST_SETPAGE0    0xB0
 480/* ... */
 481#define MP_LCD_INST_SETPAGE7    0xB7
 482
 483#define MP_LCD_TEXTCOLOR        0xe0e0ff /* RRGGBB */
 484
 485#define TYPE_MUSICPAL_LCD "musicpal_lcd"
 486OBJECT_DECLARE_SIMPLE_TYPE(musicpal_lcd_state, MUSICPAL_LCD)
 487
 488struct musicpal_lcd_state {
 489    /*< private >*/
 490    SysBusDevice parent_obj;
 491    /*< public >*/
 492
 493    MemoryRegion iomem;
 494    uint32_t brightness;
 495    uint32_t mode;
 496    uint32_t irqctrl;
 497    uint32_t page;
 498    uint32_t page_off;
 499    QemuConsole *con;
 500    uint8_t video_ram[128*64/8];
 501};
 502
 503static uint8_t scale_lcd_color(musicpal_lcd_state *s, uint8_t col)
 504{
 505    switch (s->brightness) {
 506    case 7:
 507        return col;
 508    case 0:
 509        return 0;
 510    default:
 511        return (col * s->brightness) / 7;
 512    }
 513}
 514
 515static inline void set_lcd_pixel32(musicpal_lcd_state *s,
 516                                   int x, int y, uint32_t col)
 517{
 518    int dx, dy;
 519    DisplaySurface *surface = qemu_console_surface(s->con);
 520    uint32_t *pixel =
 521        &((uint32_t *) surface_data(surface))[(y * 128 * 3 + x) * 3];
 522
 523    for (dy = 0; dy < 3; dy++, pixel += 127 * 3) {
 524        for (dx = 0; dx < 3; dx++, pixel++) {
 525            *pixel = col;
 526        }
 527    }
 528}
 529
 530static void lcd_refresh(void *opaque)
 531{
 532    musicpal_lcd_state *s = opaque;
 533    int x, y, col;
 534
 535    col = rgb_to_pixel32(scale_lcd_color(s, (MP_LCD_TEXTCOLOR >> 16) & 0xff),
 536                         scale_lcd_color(s, (MP_LCD_TEXTCOLOR >> 8) & 0xff),
 537                         scale_lcd_color(s, MP_LCD_TEXTCOLOR & 0xff));
 538    for (x = 0; x < 128; x++) {
 539        for (y = 0; y < 64; y++) {
 540            if (s->video_ram[x + (y / 8) * 128] & (1 << (y % 8))) {
 541                set_lcd_pixel32(s, x, y, col);
 542            } else {
 543                set_lcd_pixel32(s, x, y, 0);
 544            }
 545        }
 546    }
 547
 548    dpy_gfx_update(s->con, 0, 0, 128*3, 64*3);
 549}
 550
 551static void lcd_invalidate(void *opaque)
 552{
 553}
 554
 555static void musicpal_lcd_gpio_brightness_in(void *opaque, int irq, int level)
 556{
 557    musicpal_lcd_state *s = opaque;
 558    s->brightness &= ~(1 << irq);
 559    s->brightness |= level << irq;
 560}
 561
 562static uint64_t musicpal_lcd_read(void *opaque, hwaddr offset,
 563                                  unsigned size)
 564{
 565    musicpal_lcd_state *s = opaque;
 566
 567    switch (offset) {
 568    case MP_LCD_IRQCTRL:
 569        return s->irqctrl;
 570
 571    default:
 572        return 0;
 573    }
 574}
 575
 576static void musicpal_lcd_write(void *opaque, hwaddr offset,
 577                               uint64_t value, unsigned size)
 578{
 579    musicpal_lcd_state *s = opaque;
 580
 581    switch (offset) {
 582    case MP_LCD_IRQCTRL:
 583        s->irqctrl = value;
 584        break;
 585
 586    case MP_LCD_SPICTRL:
 587        if (value == MP_LCD_SPI_DATA || value == MP_LCD_SPI_CMD) {
 588            s->mode = value;
 589        } else {
 590            s->mode = MP_LCD_SPI_INVALID;
 591        }
 592        break;
 593
 594    case MP_LCD_INST:
 595        if (value >= MP_LCD_INST_SETPAGE0 && value <= MP_LCD_INST_SETPAGE7) {
 596            s->page = value - MP_LCD_INST_SETPAGE0;
 597            s->page_off = 0;
 598        }
 599        break;
 600
 601    case MP_LCD_DATA:
 602        if (s->mode == MP_LCD_SPI_CMD) {
 603            if (value >= MP_LCD_INST_SETPAGE0 &&
 604                value <= MP_LCD_INST_SETPAGE7) {
 605                s->page = value - MP_LCD_INST_SETPAGE0;
 606                s->page_off = 0;
 607            }
 608        } else if (s->mode == MP_LCD_SPI_DATA) {
 609            s->video_ram[s->page*128 + s->page_off] = value;
 610            s->page_off = (s->page_off + 1) & 127;
 611        }
 612        break;
 613    }
 614}
 615
 616static const MemoryRegionOps musicpal_lcd_ops = {
 617    .read = musicpal_lcd_read,
 618    .write = musicpal_lcd_write,
 619    .endianness = DEVICE_NATIVE_ENDIAN,
 620};
 621
 622static const GraphicHwOps musicpal_gfx_ops = {
 623    .invalidate  = lcd_invalidate,
 624    .gfx_update  = lcd_refresh,
 625};
 626
 627static void musicpal_lcd_realize(DeviceState *dev, Error **errp)
 628{
 629    musicpal_lcd_state *s = MUSICPAL_LCD(dev);
 630    s->con = graphic_console_init(dev, 0, &musicpal_gfx_ops, s);
 631    qemu_console_resize(s->con, 128 * 3, 64 * 3);
 632}
 633
 634static void musicpal_lcd_init(Object *obj)
 635{
 636    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 637    DeviceState *dev = DEVICE(sbd);
 638    musicpal_lcd_state *s = MUSICPAL_LCD(dev);
 639
 640    s->brightness = 7;
 641
 642    memory_region_init_io(&s->iomem, obj, &musicpal_lcd_ops, s,
 643                          "musicpal-lcd", MP_LCD_SIZE);
 644    sysbus_init_mmio(sbd, &s->iomem);
 645
 646    qdev_init_gpio_in(dev, musicpal_lcd_gpio_brightness_in, 3);
 647}
 648
 649static const VMStateDescription musicpal_lcd_vmsd = {
 650    .name = "musicpal_lcd",
 651    .version_id = 1,
 652    .minimum_version_id = 1,
 653    .fields = (VMStateField[]) {
 654        VMSTATE_UINT32(brightness, musicpal_lcd_state),
 655        VMSTATE_UINT32(mode, musicpal_lcd_state),
 656        VMSTATE_UINT32(irqctrl, musicpal_lcd_state),
 657        VMSTATE_UINT32(page, musicpal_lcd_state),
 658        VMSTATE_UINT32(page_off, musicpal_lcd_state),
 659        VMSTATE_BUFFER(video_ram, musicpal_lcd_state),
 660        VMSTATE_END_OF_LIST()
 661    }
 662};
 663
 664static void musicpal_lcd_class_init(ObjectClass *klass, void *data)
 665{
 666    DeviceClass *dc = DEVICE_CLASS(klass);
 667
 668    dc->vmsd = &musicpal_lcd_vmsd;
 669    dc->realize = musicpal_lcd_realize;
 670}
 671
 672static const TypeInfo musicpal_lcd_info = {
 673    .name          = TYPE_MUSICPAL_LCD,
 674    .parent        = TYPE_SYS_BUS_DEVICE,
 675    .instance_size = sizeof(musicpal_lcd_state),
 676    .instance_init = musicpal_lcd_init,
 677    .class_init    = musicpal_lcd_class_init,
 678};
 679
 680/* PIC register offsets */
 681#define MP_PIC_STATUS           0x00
 682#define MP_PIC_ENABLE_SET       0x08
 683#define MP_PIC_ENABLE_CLR       0x0C
 684
 685#define TYPE_MV88W8618_PIC "mv88w8618_pic"
 686OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_pic_state, MV88W8618_PIC)
 687
 688struct mv88w8618_pic_state {
 689    /*< private >*/
 690    SysBusDevice parent_obj;
 691    /*< public >*/
 692
 693    MemoryRegion iomem;
 694    uint32_t level;
 695    uint32_t enabled;
 696    qemu_irq parent_irq;
 697};
 698
 699static void mv88w8618_pic_update(mv88w8618_pic_state *s)
 700{
 701    qemu_set_irq(s->parent_irq, (s->level & s->enabled));
 702}
 703
 704static void mv88w8618_pic_set_irq(void *opaque, int irq, int level)
 705{
 706    mv88w8618_pic_state *s = opaque;
 707
 708    if (level) {
 709        s->level |= 1 << irq;
 710    } else {
 711        s->level &= ~(1 << irq);
 712    }
 713    mv88w8618_pic_update(s);
 714}
 715
 716static uint64_t mv88w8618_pic_read(void *opaque, hwaddr offset,
 717                                   unsigned size)
 718{
 719    mv88w8618_pic_state *s = opaque;
 720
 721    switch (offset) {
 722    case MP_PIC_STATUS:
 723        return s->level & s->enabled;
 724
 725    default:
 726        return 0;
 727    }
 728}
 729
 730static void mv88w8618_pic_write(void *opaque, hwaddr offset,
 731                                uint64_t value, unsigned size)
 732{
 733    mv88w8618_pic_state *s = opaque;
 734
 735    switch (offset) {
 736    case MP_PIC_ENABLE_SET:
 737        s->enabled |= value;
 738        break;
 739
 740    case MP_PIC_ENABLE_CLR:
 741        s->enabled &= ~value;
 742        s->level &= ~value;
 743        break;
 744    }
 745    mv88w8618_pic_update(s);
 746}
 747
 748static void mv88w8618_pic_reset(DeviceState *d)
 749{
 750    mv88w8618_pic_state *s = MV88W8618_PIC(d);
 751
 752    s->level = 0;
 753    s->enabled = 0;
 754}
 755
 756static const MemoryRegionOps mv88w8618_pic_ops = {
 757    .read = mv88w8618_pic_read,
 758    .write = mv88w8618_pic_write,
 759    .endianness = DEVICE_NATIVE_ENDIAN,
 760};
 761
 762static void mv88w8618_pic_init(Object *obj)
 763{
 764    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
 765    mv88w8618_pic_state *s = MV88W8618_PIC(dev);
 766
 767    qdev_init_gpio_in(DEVICE(dev), mv88w8618_pic_set_irq, 32);
 768    sysbus_init_irq(dev, &s->parent_irq);
 769    memory_region_init_io(&s->iomem, obj, &mv88w8618_pic_ops, s,
 770                          "musicpal-pic", MP_PIC_SIZE);
 771    sysbus_init_mmio(dev, &s->iomem);
 772}
 773
 774static const VMStateDescription mv88w8618_pic_vmsd = {
 775    .name = "mv88w8618_pic",
 776    .version_id = 1,
 777    .minimum_version_id = 1,
 778    .fields = (VMStateField[]) {
 779        VMSTATE_UINT32(level, mv88w8618_pic_state),
 780        VMSTATE_UINT32(enabled, mv88w8618_pic_state),
 781        VMSTATE_END_OF_LIST()
 782    }
 783};
 784
 785static void mv88w8618_pic_class_init(ObjectClass *klass, void *data)
 786{
 787    DeviceClass *dc = DEVICE_CLASS(klass);
 788
 789    dc->reset = mv88w8618_pic_reset;
 790    dc->vmsd = &mv88w8618_pic_vmsd;
 791}
 792
 793static const TypeInfo mv88w8618_pic_info = {
 794    .name          = TYPE_MV88W8618_PIC,
 795    .parent        = TYPE_SYS_BUS_DEVICE,
 796    .instance_size = sizeof(mv88w8618_pic_state),
 797    .instance_init = mv88w8618_pic_init,
 798    .class_init    = mv88w8618_pic_class_init,
 799};
 800
 801/* PIT register offsets */
 802#define MP_PIT_TIMER1_LENGTH    0x00
 803/* ... */
 804#define MP_PIT_TIMER4_LENGTH    0x0C
 805#define MP_PIT_CONTROL          0x10
 806#define MP_PIT_TIMER1_VALUE     0x14
 807/* ... */
 808#define MP_PIT_TIMER4_VALUE     0x20
 809#define MP_BOARD_RESET          0x34
 810
 811/* Magic board reset value (probably some watchdog behind it) */
 812#define MP_BOARD_RESET_MAGIC    0x10000
 813
 814typedef struct mv88w8618_timer_state {
 815    ptimer_state *ptimer;
 816    uint32_t limit;
 817    int freq;
 818    qemu_irq irq;
 819} mv88w8618_timer_state;
 820
 821#define TYPE_MV88W8618_PIT "mv88w8618_pit"
 822OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_pit_state, MV88W8618_PIT)
 823
 824struct mv88w8618_pit_state {
 825    /*< private >*/
 826    SysBusDevice parent_obj;
 827    /*< public >*/
 828
 829    MemoryRegion iomem;
 830    mv88w8618_timer_state timer[4];
 831};
 832
 833static void mv88w8618_timer_tick(void *opaque)
 834{
 835    mv88w8618_timer_state *s = opaque;
 836
 837    qemu_irq_raise(s->irq);
 838}
 839
 840static void mv88w8618_timer_init(SysBusDevice *dev, mv88w8618_timer_state *s,
 841                                 uint32_t freq)
 842{
 843    sysbus_init_irq(dev, &s->irq);
 844    s->freq = freq;
 845
 846    s->ptimer = ptimer_init(mv88w8618_timer_tick, s, PTIMER_POLICY_DEFAULT);
 847}
 848
 849static uint64_t mv88w8618_pit_read(void *opaque, hwaddr offset,
 850                                   unsigned size)
 851{
 852    mv88w8618_pit_state *s = opaque;
 853    mv88w8618_timer_state *t;
 854
 855    switch (offset) {
 856    case MP_PIT_TIMER1_VALUE ... MP_PIT_TIMER4_VALUE:
 857        t = &s->timer[(offset-MP_PIT_TIMER1_VALUE) >> 2];
 858        return ptimer_get_count(t->ptimer);
 859
 860    default:
 861        return 0;
 862    }
 863}
 864
 865static void mv88w8618_pit_write(void *opaque, hwaddr offset,
 866                                uint64_t value, unsigned size)
 867{
 868    mv88w8618_pit_state *s = opaque;
 869    mv88w8618_timer_state *t;
 870    int i;
 871
 872    switch (offset) {
 873    case MP_PIT_TIMER1_LENGTH ... MP_PIT_TIMER4_LENGTH:
 874        t = &s->timer[offset >> 2];
 875        t->limit = value;
 876        ptimer_transaction_begin(t->ptimer);
 877        if (t->limit > 0) {
 878            ptimer_set_limit(t->ptimer, t->limit, 1);
 879        } else {
 880            ptimer_stop(t->ptimer);
 881        }
 882        ptimer_transaction_commit(t->ptimer);
 883        break;
 884
 885    case MP_PIT_CONTROL:
 886        for (i = 0; i < 4; i++) {
 887            t = &s->timer[i];
 888            ptimer_transaction_begin(t->ptimer);
 889            if (value & 0xf && t->limit > 0) {
 890                ptimer_set_limit(t->ptimer, t->limit, 0);
 891                ptimer_set_freq(t->ptimer, t->freq);
 892                ptimer_run(t->ptimer, 0);
 893            } else {
 894                ptimer_stop(t->ptimer);
 895            }
 896            ptimer_transaction_commit(t->ptimer);
 897            value >>= 4;
 898        }
 899        break;
 900
 901    case MP_BOARD_RESET:
 902        if (value == MP_BOARD_RESET_MAGIC) {
 903            qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
 904        }
 905        break;
 906    }
 907}
 908
 909static void mv88w8618_pit_reset(DeviceState *d)
 910{
 911    mv88w8618_pit_state *s = MV88W8618_PIT(d);
 912    int i;
 913
 914    for (i = 0; i < 4; i++) {
 915        mv88w8618_timer_state *t = &s->timer[i];
 916        ptimer_transaction_begin(t->ptimer);
 917        ptimer_stop(t->ptimer);
 918        ptimer_transaction_commit(t->ptimer);
 919        t->limit = 0;
 920    }
 921}
 922
 923static const MemoryRegionOps mv88w8618_pit_ops = {
 924    .read = mv88w8618_pit_read,
 925    .write = mv88w8618_pit_write,
 926    .endianness = DEVICE_NATIVE_ENDIAN,
 927};
 928
 929static void mv88w8618_pit_init(Object *obj)
 930{
 931    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
 932    mv88w8618_pit_state *s = MV88W8618_PIT(dev);
 933    int i;
 934
 935    /* Letting them all run at 1 MHz is likely just a pragmatic
 936     * simplification. */
 937    for (i = 0; i < 4; i++) {
 938        mv88w8618_timer_init(dev, &s->timer[i], 1000000);
 939    }
 940
 941    memory_region_init_io(&s->iomem, obj, &mv88w8618_pit_ops, s,
 942                          "musicpal-pit", MP_PIT_SIZE);
 943    sysbus_init_mmio(dev, &s->iomem);
 944}
 945
 946static void mv88w8618_pit_finalize(Object *obj)
 947{
 948    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
 949    mv88w8618_pit_state *s = MV88W8618_PIT(dev);
 950    int i;
 951
 952    for (i = 0; i < 4; i++) {
 953        ptimer_free(s->timer[i].ptimer);
 954    }
 955}
 956
 957static const VMStateDescription mv88w8618_timer_vmsd = {
 958    .name = "timer",
 959    .version_id = 1,
 960    .minimum_version_id = 1,
 961    .fields = (VMStateField[]) {
 962        VMSTATE_PTIMER(ptimer, mv88w8618_timer_state),
 963        VMSTATE_UINT32(limit, mv88w8618_timer_state),
 964        VMSTATE_END_OF_LIST()
 965    }
 966};
 967
 968static const VMStateDescription mv88w8618_pit_vmsd = {
 969    .name = "mv88w8618_pit",
 970    .version_id = 1,
 971    .minimum_version_id = 1,
 972    .fields = (VMStateField[]) {
 973        VMSTATE_STRUCT_ARRAY(timer, mv88w8618_pit_state, 4, 1,
 974                             mv88w8618_timer_vmsd, mv88w8618_timer_state),
 975        VMSTATE_END_OF_LIST()
 976    }
 977};
 978
 979static void mv88w8618_pit_class_init(ObjectClass *klass, void *data)
 980{
 981    DeviceClass *dc = DEVICE_CLASS(klass);
 982
 983    dc->reset = mv88w8618_pit_reset;
 984    dc->vmsd = &mv88w8618_pit_vmsd;
 985}
 986
 987static const TypeInfo mv88w8618_pit_info = {
 988    .name          = TYPE_MV88W8618_PIT,
 989    .parent        = TYPE_SYS_BUS_DEVICE,
 990    .instance_size = sizeof(mv88w8618_pit_state),
 991    .instance_init = mv88w8618_pit_init,
 992    .instance_finalize = mv88w8618_pit_finalize,
 993    .class_init    = mv88w8618_pit_class_init,
 994};
 995
 996/* Flash config register offsets */
 997#define MP_FLASHCFG_CFGR0    0x04
 998
 999#define TYPE_MV88W8618_FLASHCFG "mv88w8618_flashcfg"
1000OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_flashcfg_state, MV88W8618_FLASHCFG)
1001
1002struct mv88w8618_flashcfg_state {
1003    /*< private >*/
1004    SysBusDevice parent_obj;
1005    /*< public >*/
1006
1007    MemoryRegion iomem;
1008    uint32_t cfgr0;
1009};
1010
1011static uint64_t mv88w8618_flashcfg_read(void *opaque,
1012                                        hwaddr offset,
1013                                        unsigned size)
1014{
1015    mv88w8618_flashcfg_state *s = opaque;
1016
1017    switch (offset) {
1018    case MP_FLASHCFG_CFGR0:
1019        return s->cfgr0;
1020
1021    default:
1022        return 0;
1023    }
1024}
1025
1026static void mv88w8618_flashcfg_write(void *opaque, hwaddr offset,
1027                                     uint64_t value, unsigned size)
1028{
1029    mv88w8618_flashcfg_state *s = opaque;
1030
1031    switch (offset) {
1032    case MP_FLASHCFG_CFGR0:
1033        s->cfgr0 = value;
1034        break;
1035    }
1036}
1037
1038static const MemoryRegionOps mv88w8618_flashcfg_ops = {
1039    .read = mv88w8618_flashcfg_read,
1040    .write = mv88w8618_flashcfg_write,
1041    .endianness = DEVICE_NATIVE_ENDIAN,
1042};
1043
1044static void mv88w8618_flashcfg_init(Object *obj)
1045{
1046    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
1047    mv88w8618_flashcfg_state *s = MV88W8618_FLASHCFG(dev);
1048
1049    s->cfgr0 = 0xfffe4285; /* Default as set by U-Boot for 8 MB flash */
1050    memory_region_init_io(&s->iomem, obj, &mv88w8618_flashcfg_ops, s,
1051                          "musicpal-flashcfg", MP_FLASHCFG_SIZE);
1052    sysbus_init_mmio(dev, &s->iomem);
1053}
1054
1055static const VMStateDescription mv88w8618_flashcfg_vmsd = {
1056    .name = "mv88w8618_flashcfg",
1057    .version_id = 1,
1058    .minimum_version_id = 1,
1059    .fields = (VMStateField[]) {
1060        VMSTATE_UINT32(cfgr0, mv88w8618_flashcfg_state),
1061        VMSTATE_END_OF_LIST()
1062    }
1063};
1064
1065static void mv88w8618_flashcfg_class_init(ObjectClass *klass, void *data)
1066{
1067    DeviceClass *dc = DEVICE_CLASS(klass);
1068
1069    dc->vmsd = &mv88w8618_flashcfg_vmsd;
1070}
1071
1072static const TypeInfo mv88w8618_flashcfg_info = {
1073    .name          = TYPE_MV88W8618_FLASHCFG,
1074    .parent        = TYPE_SYS_BUS_DEVICE,
1075    .instance_size = sizeof(mv88w8618_flashcfg_state),
1076    .instance_init = mv88w8618_flashcfg_init,
1077    .class_init    = mv88w8618_flashcfg_class_init,
1078};
1079
1080/* Misc register offsets */
1081#define MP_MISC_BOARD_REVISION  0x18
1082
1083#define MP_BOARD_REVISION       0x31
1084
1085struct MusicPalMiscState {
1086    SysBusDevice parent_obj;
1087    MemoryRegion iomem;
1088};
1089
1090#define TYPE_MUSICPAL_MISC "musicpal-misc"
1091OBJECT_DECLARE_SIMPLE_TYPE(MusicPalMiscState, MUSICPAL_MISC)
1092
1093static uint64_t musicpal_misc_read(void *opaque, hwaddr offset,
1094                                   unsigned size)
1095{
1096    switch (offset) {
1097    case MP_MISC_BOARD_REVISION:
1098        return MP_BOARD_REVISION;
1099
1100    default:
1101        return 0;
1102    }
1103}
1104
1105static void musicpal_misc_write(void *opaque, hwaddr offset,
1106                                uint64_t value, unsigned size)
1107{
1108}
1109
1110static const MemoryRegionOps musicpal_misc_ops = {
1111    .read = musicpal_misc_read,
1112    .write = musicpal_misc_write,
1113    .endianness = DEVICE_NATIVE_ENDIAN,
1114};
1115
1116static void musicpal_misc_init(Object *obj)
1117{
1118    SysBusDevice *sd = SYS_BUS_DEVICE(obj);
1119    MusicPalMiscState *s = MUSICPAL_MISC(obj);
1120
1121    memory_region_init_io(&s->iomem, OBJECT(s), &musicpal_misc_ops, NULL,
1122                          "musicpal-misc", MP_MISC_SIZE);
1123    sysbus_init_mmio(sd, &s->iomem);
1124}
1125
1126static const TypeInfo musicpal_misc_info = {
1127    .name = TYPE_MUSICPAL_MISC,
1128    .parent = TYPE_SYS_BUS_DEVICE,
1129    .instance_init = musicpal_misc_init,
1130    .instance_size = sizeof(MusicPalMiscState),
1131};
1132
1133/* WLAN register offsets */
1134#define MP_WLAN_MAGIC1          0x11c
1135#define MP_WLAN_MAGIC2          0x124
1136
1137static uint64_t mv88w8618_wlan_read(void *opaque, hwaddr offset,
1138                                    unsigned size)
1139{
1140    switch (offset) {
1141    /* Workaround to allow loading the binary-only wlandrv.ko crap
1142     * from the original Freecom firmware. */
1143    case MP_WLAN_MAGIC1:
1144        return ~3;
1145    case MP_WLAN_MAGIC2:
1146        return -1;
1147
1148    default:
1149        return 0;
1150    }
1151}
1152
1153static void mv88w8618_wlan_write(void *opaque, hwaddr offset,
1154                                 uint64_t value, unsigned size)
1155{
1156}
1157
1158static const MemoryRegionOps mv88w8618_wlan_ops = {
1159    .read = mv88w8618_wlan_read,
1160    .write =mv88w8618_wlan_write,
1161    .endianness = DEVICE_NATIVE_ENDIAN,
1162};
1163
1164static void mv88w8618_wlan_realize(DeviceState *dev, Error **errp)
1165{
1166    MemoryRegion *iomem = g_new(MemoryRegion, 1);
1167
1168    memory_region_init_io(iomem, OBJECT(dev), &mv88w8618_wlan_ops, NULL,
1169                          "musicpal-wlan", MP_WLAN_SIZE);
1170    sysbus_init_mmio(SYS_BUS_DEVICE(dev), iomem);
1171}
1172
1173/* GPIO register offsets */
1174#define MP_GPIO_OE_LO           0x008
1175#define MP_GPIO_OUT_LO          0x00c
1176#define MP_GPIO_IN_LO           0x010
1177#define MP_GPIO_IER_LO          0x014
1178#define MP_GPIO_IMR_LO          0x018
1179#define MP_GPIO_ISR_LO          0x020
1180#define MP_GPIO_OE_HI           0x508
1181#define MP_GPIO_OUT_HI          0x50c
1182#define MP_GPIO_IN_HI           0x510
1183#define MP_GPIO_IER_HI          0x514
1184#define MP_GPIO_IMR_HI          0x518
1185#define MP_GPIO_ISR_HI          0x520
1186
1187/* GPIO bits & masks */
1188#define MP_GPIO_LCD_BRIGHTNESS  0x00070000
1189#define MP_GPIO_I2C_DATA_BIT    29
1190#define MP_GPIO_I2C_CLOCK_BIT   30
1191
1192/* LCD brightness bits in GPIO_OE_HI */
1193#define MP_OE_LCD_BRIGHTNESS    0x0007
1194
1195#define TYPE_MUSICPAL_GPIO "musicpal_gpio"
1196OBJECT_DECLARE_SIMPLE_TYPE(musicpal_gpio_state, MUSICPAL_GPIO)
1197
1198struct musicpal_gpio_state {
1199    /*< private >*/
1200    SysBusDevice parent_obj;
1201    /*< public >*/
1202
1203    MemoryRegion iomem;
1204    uint32_t lcd_brightness;
1205    uint32_t out_state;
1206    uint32_t in_state;
1207    uint32_t ier;
1208    uint32_t imr;
1209    uint32_t isr;
1210    qemu_irq irq;
1211    qemu_irq out[5]; /* 3 brightness out + 2 lcd (data and clock ) */
1212};
1213
1214static void musicpal_gpio_brightness_update(musicpal_gpio_state *s) {
1215    int i;
1216    uint32_t brightness;
1217
1218    /* compute brightness ratio */
1219    switch (s->lcd_brightness) {
1220    case 0x00000007:
1221        brightness = 0;
1222        break;
1223
1224    case 0x00020000:
1225        brightness = 1;
1226        break;
1227
1228    case 0x00020001:
1229        brightness = 2;
1230        break;
1231
1232    case 0x00040000:
1233        brightness = 3;
1234        break;
1235
1236    case 0x00010006:
1237        brightness = 4;
1238        break;
1239
1240    case 0x00020005:
1241        brightness = 5;
1242        break;
1243
1244    case 0x00040003:
1245        brightness = 6;
1246        break;
1247
1248    case 0x00030004:
1249    default:
1250        brightness = 7;
1251    }
1252
1253    /* set lcd brightness GPIOs  */
1254    for (i = 0; i <= 2; i++) {
1255        qemu_set_irq(s->out[i], (brightness >> i) & 1);
1256    }
1257}
1258
1259static void musicpal_gpio_pin_event(void *opaque, int pin, int level)
1260{
1261    musicpal_gpio_state *s = opaque;
1262    uint32_t mask = 1 << pin;
1263    uint32_t delta = level << pin;
1264    uint32_t old = s->in_state & mask;
1265
1266    s->in_state &= ~mask;
1267    s->in_state |= delta;
1268
1269    if ((old ^ delta) &&
1270        ((level && (s->imr & mask)) || (!level && (s->ier & mask)))) {
1271        s->isr = mask;
1272        qemu_irq_raise(s->irq);
1273    }
1274}
1275
1276static uint64_t musicpal_gpio_read(void *opaque, hwaddr offset,
1277                                   unsigned size)
1278{
1279    musicpal_gpio_state *s = opaque;
1280
1281    switch (offset) {
1282    case MP_GPIO_OE_HI: /* used for LCD brightness control */
1283        return s->lcd_brightness & MP_OE_LCD_BRIGHTNESS;
1284
1285    case MP_GPIO_OUT_LO:
1286        return s->out_state & 0xFFFF;
1287    case MP_GPIO_OUT_HI:
1288        return s->out_state >> 16;
1289
1290    case MP_GPIO_IN_LO:
1291        return s->in_state & 0xFFFF;
1292    case MP_GPIO_IN_HI:
1293        return s->in_state >> 16;
1294
1295    case MP_GPIO_IER_LO:
1296        return s->ier & 0xFFFF;
1297    case MP_GPIO_IER_HI:
1298        return s->ier >> 16;
1299
1300    case MP_GPIO_IMR_LO:
1301        return s->imr & 0xFFFF;
1302    case MP_GPIO_IMR_HI:
1303        return s->imr >> 16;
1304
1305    case MP_GPIO_ISR_LO:
1306        return s->isr & 0xFFFF;
1307    case MP_GPIO_ISR_HI:
1308        return s->isr >> 16;
1309
1310    default:
1311        return 0;
1312    }
1313}
1314
1315static void musicpal_gpio_write(void *opaque, hwaddr offset,
1316                                uint64_t value, unsigned size)
1317{
1318    musicpal_gpio_state *s = opaque;
1319    switch (offset) {
1320    case MP_GPIO_OE_HI: /* used for LCD brightness control */
1321        s->lcd_brightness = (s->lcd_brightness & MP_GPIO_LCD_BRIGHTNESS) |
1322                         (value & MP_OE_LCD_BRIGHTNESS);
1323        musicpal_gpio_brightness_update(s);
1324        break;
1325
1326    case MP_GPIO_OUT_LO:
1327        s->out_state = (s->out_state & 0xFFFF0000) | (value & 0xFFFF);
1328        break;
1329    case MP_GPIO_OUT_HI:
1330        s->out_state = (s->out_state & 0xFFFF) | (value << 16);
1331        s->lcd_brightness = (s->lcd_brightness & 0xFFFF) |
1332                            (s->out_state & MP_GPIO_LCD_BRIGHTNESS);
1333        musicpal_gpio_brightness_update(s);
1334        qemu_set_irq(s->out[3], (s->out_state >> MP_GPIO_I2C_DATA_BIT) & 1);
1335        qemu_set_irq(s->out[4], (s->out_state >> MP_GPIO_I2C_CLOCK_BIT) & 1);
1336        break;
1337
1338    case MP_GPIO_IER_LO:
1339        s->ier = (s->ier & 0xFFFF0000) | (value & 0xFFFF);
1340        break;
1341    case MP_GPIO_IER_HI:
1342        s->ier = (s->ier & 0xFFFF) | (value << 16);
1343        break;
1344
1345    case MP_GPIO_IMR_LO:
1346        s->imr = (s->imr & 0xFFFF0000) | (value & 0xFFFF);
1347        break;
1348    case MP_GPIO_IMR_HI:
1349        s->imr = (s->imr & 0xFFFF) | (value << 16);
1350        break;
1351    }
1352}
1353
1354static const MemoryRegionOps musicpal_gpio_ops = {
1355    .read = musicpal_gpio_read,
1356    .write = musicpal_gpio_write,
1357    .endianness = DEVICE_NATIVE_ENDIAN,
1358};
1359
1360static void musicpal_gpio_reset(DeviceState *d)
1361{
1362    musicpal_gpio_state *s = MUSICPAL_GPIO(d);
1363
1364    s->lcd_brightness = 0;
1365    s->out_state = 0;
1366    s->in_state = 0xffffffff;
1367    s->ier = 0;
1368    s->imr = 0;
1369    s->isr = 0;
1370}
1371
1372static void musicpal_gpio_init(Object *obj)
1373{
1374    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
1375    DeviceState *dev = DEVICE(sbd);
1376    musicpal_gpio_state *s = MUSICPAL_GPIO(dev);
1377
1378    sysbus_init_irq(sbd, &s->irq);
1379
1380    memory_region_init_io(&s->iomem, obj, &musicpal_gpio_ops, s,
1381                          "musicpal-gpio", MP_GPIO_SIZE);
1382    sysbus_init_mmio(sbd, &s->iomem);
1383
1384    qdev_init_gpio_out(dev, s->out, ARRAY_SIZE(s->out));
1385
1386    qdev_init_gpio_in(dev, musicpal_gpio_pin_event, 32);
1387}
1388
1389static const VMStateDescription musicpal_gpio_vmsd = {
1390    .name = "musicpal_gpio",
1391    .version_id = 1,
1392    .minimum_version_id = 1,
1393    .fields = (VMStateField[]) {
1394        VMSTATE_UINT32(lcd_brightness, musicpal_gpio_state),
1395        VMSTATE_UINT32(out_state, musicpal_gpio_state),
1396        VMSTATE_UINT32(in_state, musicpal_gpio_state),
1397        VMSTATE_UINT32(ier, musicpal_gpio_state),
1398        VMSTATE_UINT32(imr, musicpal_gpio_state),
1399        VMSTATE_UINT32(isr, musicpal_gpio_state),
1400        VMSTATE_END_OF_LIST()
1401    }
1402};
1403
1404static void musicpal_gpio_class_init(ObjectClass *klass, void *data)
1405{
1406    DeviceClass *dc = DEVICE_CLASS(klass);
1407
1408    dc->reset = musicpal_gpio_reset;
1409    dc->vmsd = &musicpal_gpio_vmsd;
1410}
1411
1412static const TypeInfo musicpal_gpio_info = {
1413    .name          = TYPE_MUSICPAL_GPIO,
1414    .parent        = TYPE_SYS_BUS_DEVICE,
1415    .instance_size = sizeof(musicpal_gpio_state),
1416    .instance_init = musicpal_gpio_init,
1417    .class_init    = musicpal_gpio_class_init,
1418};
1419
1420/* Keyboard codes & masks */
1421#define KEY_RELEASED            0x80
1422#define KEY_CODE                0x7f
1423
1424#define KEYCODE_TAB             0x0f
1425#define KEYCODE_ENTER           0x1c
1426#define KEYCODE_F               0x21
1427#define KEYCODE_M               0x32
1428
1429#define KEYCODE_EXTENDED        0xe0
1430#define KEYCODE_UP              0x48
1431#define KEYCODE_DOWN            0x50
1432#define KEYCODE_LEFT            0x4b
1433#define KEYCODE_RIGHT           0x4d
1434
1435#define MP_KEY_WHEEL_VOL       (1 << 0)
1436#define MP_KEY_WHEEL_VOL_INV   (1 << 1)
1437#define MP_KEY_WHEEL_NAV       (1 << 2)
1438#define MP_KEY_WHEEL_NAV_INV   (1 << 3)
1439#define MP_KEY_BTN_FAVORITS    (1 << 4)
1440#define MP_KEY_BTN_MENU        (1 << 5)
1441#define MP_KEY_BTN_VOLUME      (1 << 6)
1442#define MP_KEY_BTN_NAVIGATION  (1 << 7)
1443
1444#define TYPE_MUSICPAL_KEY "musicpal_key"
1445OBJECT_DECLARE_SIMPLE_TYPE(musicpal_key_state, MUSICPAL_KEY)
1446
1447struct musicpal_key_state {
1448    /*< private >*/
1449    SysBusDevice parent_obj;
1450    /*< public >*/
1451
1452    MemoryRegion iomem;
1453    uint32_t kbd_extended;
1454    uint32_t pressed_keys;
1455    qemu_irq out[8];
1456};
1457
1458static void musicpal_key_event(void *opaque, int keycode)
1459{
1460    musicpal_key_state *s = opaque;
1461    uint32_t event = 0;
1462    int i;
1463
1464    if (keycode == KEYCODE_EXTENDED) {
1465        s->kbd_extended = 1;
1466        return;
1467    }
1468
1469    if (s->kbd_extended) {
1470        switch (keycode & KEY_CODE) {
1471        case KEYCODE_UP:
1472            event = MP_KEY_WHEEL_NAV | MP_KEY_WHEEL_NAV_INV;
1473            break;
1474
1475        case KEYCODE_DOWN:
1476            event = MP_KEY_WHEEL_NAV;
1477            break;
1478
1479        case KEYCODE_LEFT:
1480            event = MP_KEY_WHEEL_VOL | MP_KEY_WHEEL_VOL_INV;
1481            break;
1482
1483        case KEYCODE_RIGHT:
1484            event = MP_KEY_WHEEL_VOL;
1485            break;
1486        }
1487    } else {
1488        switch (keycode & KEY_CODE) {
1489        case KEYCODE_F:
1490            event = MP_KEY_BTN_FAVORITS;
1491            break;
1492
1493        case KEYCODE_TAB:
1494            event = MP_KEY_BTN_VOLUME;
1495            break;
1496
1497        case KEYCODE_ENTER:
1498            event = MP_KEY_BTN_NAVIGATION;
1499            break;
1500
1501        case KEYCODE_M:
1502            event = MP_KEY_BTN_MENU;
1503            break;
1504        }
1505        /* Do not repeat already pressed buttons */
1506        if (!(keycode & KEY_RELEASED) && (s->pressed_keys & event)) {
1507            event = 0;
1508        }
1509    }
1510
1511    if (event) {
1512        /* Raise GPIO pin first if repeating a key */
1513        if (!(keycode & KEY_RELEASED) && (s->pressed_keys & event)) {
1514            for (i = 0; i <= 7; i++) {
1515                if (event & (1 << i)) {
1516                    qemu_set_irq(s->out[i], 1);
1517                }
1518            }
1519        }
1520        for (i = 0; i <= 7; i++) {
1521            if (event & (1 << i)) {
1522                qemu_set_irq(s->out[i], !!(keycode & KEY_RELEASED));
1523            }
1524        }
1525        if (keycode & KEY_RELEASED) {
1526            s->pressed_keys &= ~event;
1527        } else {
1528            s->pressed_keys |= event;
1529        }
1530    }
1531
1532    s->kbd_extended = 0;
1533}
1534
1535static void musicpal_key_init(Object *obj)
1536{
1537    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
1538    DeviceState *dev = DEVICE(sbd);
1539    musicpal_key_state *s = MUSICPAL_KEY(dev);
1540
1541    memory_region_init(&s->iomem, obj, "dummy", 0);
1542    sysbus_init_mmio(sbd, &s->iomem);
1543
1544    s->kbd_extended = 0;
1545    s->pressed_keys = 0;
1546
1547    qdev_init_gpio_out(dev, s->out, ARRAY_SIZE(s->out));
1548
1549    qemu_add_kbd_event_handler(musicpal_key_event, s);
1550}
1551
1552static const VMStateDescription musicpal_key_vmsd = {
1553    .name = "musicpal_key",
1554    .version_id = 1,
1555    .minimum_version_id = 1,
1556    .fields = (VMStateField[]) {
1557        VMSTATE_UINT32(kbd_extended, musicpal_key_state),
1558        VMSTATE_UINT32(pressed_keys, musicpal_key_state),
1559        VMSTATE_END_OF_LIST()
1560    }
1561};
1562
1563static void musicpal_key_class_init(ObjectClass *klass, void *data)
1564{
1565    DeviceClass *dc = DEVICE_CLASS(klass);
1566
1567    dc->vmsd = &musicpal_key_vmsd;
1568}
1569
1570static const TypeInfo musicpal_key_info = {
1571    .name          = TYPE_MUSICPAL_KEY,
1572    .parent        = TYPE_SYS_BUS_DEVICE,
1573    .instance_size = sizeof(musicpal_key_state),
1574    .instance_init = musicpal_key_init,
1575    .class_init    = musicpal_key_class_init,
1576};
1577
1578static struct arm_boot_info musicpal_binfo = {
1579    .loader_start = 0x0,
1580    .board_id = 0x20e,
1581};
1582
1583static void musicpal_init(MachineState *machine)
1584{
1585    ARMCPU *cpu;
1586    DeviceState *dev;
1587    DeviceState *pic;
1588    DeviceState *uart_orgate;
1589    DeviceState *i2c_dev;
1590    DeviceState *lcd_dev;
1591    DeviceState *key_dev;
1592    I2CSlave *wm8750_dev;
1593    SysBusDevice *s;
1594    I2CBus *i2c;
1595    int i;
1596    unsigned long flash_size;
1597    DriveInfo *dinfo;
1598    MachineClass *mc = MACHINE_GET_CLASS(machine);
1599    MemoryRegion *address_space_mem = get_system_memory();
1600    MemoryRegion *sram = g_new(MemoryRegion, 1);
1601
1602    /* For now we use a fixed - the original - RAM size */
1603    if (machine->ram_size != mc->default_ram_size) {
1604        char *sz = size_to_str(mc->default_ram_size);
1605        error_report("Invalid RAM size, should be %s", sz);
1606        g_free(sz);
1607        exit(EXIT_FAILURE);
1608    }
1609
1610    cpu = ARM_CPU(cpu_create(machine->cpu_type));
1611
1612    memory_region_add_subregion(address_space_mem, 0, machine->ram);
1613
1614    memory_region_init_ram(sram, NULL, "musicpal.sram", MP_SRAM_SIZE,
1615                           &error_fatal);
1616    memory_region_add_subregion(address_space_mem, MP_SRAM_BASE, sram);
1617
1618    pic = sysbus_create_simple(TYPE_MV88W8618_PIC, MP_PIC_BASE,
1619                               qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ));
1620    sysbus_create_varargs(TYPE_MV88W8618_PIT, MP_PIT_BASE,
1621                          qdev_get_gpio_in(pic, MP_TIMER1_IRQ),
1622                          qdev_get_gpio_in(pic, MP_TIMER2_IRQ),
1623                          qdev_get_gpio_in(pic, MP_TIMER3_IRQ),
1624                          qdev_get_gpio_in(pic, MP_TIMER4_IRQ), NULL);
1625
1626    /* Logically OR both UART IRQs together */
1627    uart_orgate = DEVICE(object_new(TYPE_OR_IRQ));
1628    object_property_set_int(OBJECT(uart_orgate), "num-lines", 2, &error_fatal);
1629    qdev_realize_and_unref(uart_orgate, NULL, &error_fatal);
1630    qdev_connect_gpio_out(DEVICE(uart_orgate), 0,
1631                          qdev_get_gpio_in(pic, MP_UART_SHARED_IRQ));
1632
1633    serial_mm_init(address_space_mem, MP_UART1_BASE, 2,
1634                   qdev_get_gpio_in(uart_orgate, 0),
1635                   1825000, serial_hd(0), DEVICE_NATIVE_ENDIAN);
1636    serial_mm_init(address_space_mem, MP_UART2_BASE, 2,
1637                   qdev_get_gpio_in(uart_orgate, 1),
1638                   1825000, serial_hd(1), DEVICE_NATIVE_ENDIAN);
1639
1640    /* Register flash */
1641    dinfo = drive_get(IF_PFLASH, 0, 0);
1642    if (dinfo) {
1643        BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
1644
1645        flash_size = blk_getlength(blk);
1646        if (flash_size != 8*1024*1024 && flash_size != 16*1024*1024 &&
1647            flash_size != 32*1024*1024) {
1648            error_report("Invalid flash image size");
1649            exit(1);
1650        }
1651
1652        /*
1653         * The original U-Boot accesses the flash at 0xFE000000 instead of
1654         * 0xFF800000 (if there is 8 MB flash). So remap flash access if the
1655         * image is smaller than 32 MB.
1656         */
1657        pflash_cfi02_register(0x100000000ULL - MP_FLASH_SIZE_MAX,
1658                              "musicpal.flash", flash_size,
1659                              blk, 0x10000,
1660                              MP_FLASH_SIZE_MAX / flash_size,
1661                              2, 0x00BF, 0x236D, 0x0000, 0x0000,
1662                              0x5555, 0x2AAA, 0);
1663    }
1664    sysbus_create_simple(TYPE_MV88W8618_FLASHCFG, MP_FLASHCFG_BASE, NULL);
1665
1666    qemu_check_nic_model(&nd_table[0], "mv88w8618");
1667    dev = qdev_new(TYPE_MV88W8618_ETH);
1668    qdev_set_nic_properties(dev, &nd_table[0]);
1669    object_property_set_link(OBJECT(dev), "dma-memory",
1670                             OBJECT(get_system_memory()), &error_fatal);
1671    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
1672    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, MP_ETH_BASE);
1673    sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
1674                       qdev_get_gpio_in(pic, MP_ETH_IRQ));
1675
1676    sysbus_create_simple("mv88w8618_wlan", MP_WLAN_BASE, NULL);
1677
1678    sysbus_create_simple(TYPE_MUSICPAL_MISC, MP_MISC_BASE, NULL);
1679
1680    dev = sysbus_create_simple(TYPE_MUSICPAL_GPIO, MP_GPIO_BASE,
1681                               qdev_get_gpio_in(pic, MP_GPIO_IRQ));
1682    i2c_dev = sysbus_create_simple("gpio_i2c", -1, NULL);
1683    i2c = (I2CBus *)qdev_get_child_bus(i2c_dev, "i2c");
1684
1685    lcd_dev = sysbus_create_simple(TYPE_MUSICPAL_LCD, MP_LCD_BASE, NULL);
1686    key_dev = sysbus_create_simple(TYPE_MUSICPAL_KEY, -1, NULL);
1687
1688    /* I2C read data */
1689    qdev_connect_gpio_out(i2c_dev, 0,
1690                          qdev_get_gpio_in(dev, MP_GPIO_I2C_DATA_BIT));
1691    /* I2C data */
1692    qdev_connect_gpio_out(dev, 3, qdev_get_gpio_in(i2c_dev, 0));
1693    /* I2C clock */
1694    qdev_connect_gpio_out(dev, 4, qdev_get_gpio_in(i2c_dev, 1));
1695
1696    for (i = 0; i < 3; i++) {
1697        qdev_connect_gpio_out(dev, i, qdev_get_gpio_in(lcd_dev, i));
1698    }
1699    for (i = 0; i < 4; i++) {
1700        qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i + 8));
1701    }
1702    for (i = 4; i < 8; i++) {
1703        qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i + 15));
1704    }
1705
1706    wm8750_dev = i2c_slave_create_simple(i2c, TYPE_WM8750, MP_WM_ADDR);
1707    dev = qdev_new(TYPE_MV88W8618_AUDIO);
1708    s = SYS_BUS_DEVICE(dev);
1709    object_property_set_link(OBJECT(dev), "wm8750", OBJECT(wm8750_dev),
1710                             NULL);
1711    sysbus_realize_and_unref(s, &error_fatal);
1712    sysbus_mmio_map(s, 0, MP_AUDIO_BASE);
1713    sysbus_connect_irq(s, 0, qdev_get_gpio_in(pic, MP_AUDIO_IRQ));
1714
1715    musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE;
1716    arm_load_kernel(cpu, machine, &musicpal_binfo);
1717}
1718
1719static void musicpal_machine_init(MachineClass *mc)
1720{
1721    mc->desc = "Marvell 88w8618 / MusicPal (ARM926EJ-S)";
1722    mc->init = musicpal_init;
1723    mc->ignore_memory_transaction_failures = true;
1724    mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
1725    mc->default_ram_size = MP_RAM_DEFAULT_SIZE;
1726    mc->default_ram_id = "musicpal.ram";
1727}
1728
1729DEFINE_MACHINE("musicpal", musicpal_machine_init)
1730
1731static void mv88w8618_wlan_class_init(ObjectClass *klass, void *data)
1732{
1733    DeviceClass *dc = DEVICE_CLASS(klass);
1734
1735    dc->realize = mv88w8618_wlan_realize;
1736}
1737
1738static const TypeInfo mv88w8618_wlan_info = {
1739    .name          = "mv88w8618_wlan",
1740    .parent        = TYPE_SYS_BUS_DEVICE,
1741    .instance_size = sizeof(SysBusDevice),
1742    .class_init    = mv88w8618_wlan_class_init,
1743};
1744
1745static void musicpal_register_types(void)
1746{
1747    type_register_static(&mv88w8618_pic_info);
1748    type_register_static(&mv88w8618_pit_info);
1749    type_register_static(&mv88w8618_flashcfg_info);
1750    type_register_static(&mv88w8618_eth_info);
1751    type_register_static(&mv88w8618_wlan_info);
1752    type_register_static(&musicpal_lcd_info);
1753    type_register_static(&musicpal_gpio_info);
1754    type_register_static(&musicpal_key_info);
1755    type_register_static(&musicpal_misc_info);
1756}
1757
1758type_init(musicpal_register_types)
1759