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